1. A circulation pump, comprising:

a drainage pipeline (19), the drainage pipeline (19) is provided with a water inlet (20) and a left water inlet and a right water inlet, the water inlet (20) is communicated with a drainage valve (25), wherein

The drainage part (21) is positioned at the left water outlet (23), and is used for controlling the on-off of the left water outlet (23);

the backwashing part (22), the backwashing part (22) is positioned at the right water outlet (24), and the backwashing part (22) comprises a second fixing ring (22-1) fixed in the drainage pipeline (19), a drainage hole (22-2) formed in the second fixing ring (22-1), a valve core (22-6) arranged in the drainage pipeline (19) in a sliding manner, and an elastic mechanism arranged between the second fixing ring (22-1) and the valve core (22-6);

when the water inlet (20) is filled with water, the drainage part (21) is opened, and the valve core (22-6) is pushed by the water pressure to be tightly attached to the right water outlet (24) so as to block the right water outlet (24);

when the right water inlet (20) is filled with water, the drainage part (21) is closed, and the valve core (22-6) is pushed by the water pressure to be far away from the right water outlet (24) so as to open the right water outlet (24).

2. A circulation pump according to claim 1,

the drainage part (21) comprises a first fixing ring (21-1) fixed in the drainage pipeline (19), a plurality of first water through holes (21-2) formed in the first fixing ring (21-1), a retaining ring (21-3) arranged on one side of the first fixing ring (21-1) and a plurality of second water through holes (21-4) formed in the retaining ring (21-3), wherein,

the baffle ring (21-3) is tightly attached to the first fixing ring (21-1), the baffle ring (21-3) is rotatably arranged in the drainage pipeline (19), and the first water through hole (21-2) corresponds to the second water through hole (21-4).

3. A circulation pump according to claim 2,

a third fixing ring (21-5) is fixed in the drainage pipeline (19), a plurality of water through holes (21-6) are formed in the third fixing ring (21-5), a rotating shaft (21-9) is fixed on the third fixing ring (21-5), and the baffle ring (21-3) is rotatably arranged on the rotating shaft (21-9); and

the drainage pipeline (19) is provided with a rotating groove (21-8), the baffle ring (21-3) is fixedly provided with a poking block (21-7), and the poking block (21-7) is located in the rotating groove (21-8) and used for driving the baffle ring (21-3) to rotate.

4. A circulation pump according to claim 2,

the sizes of the first fixing ring (21-1), the second fixing ring (22-1) and the baffle ring (21-3) are consistent with the size of the inner wall of the drainage pipeline (19).

5. A circulation pump according to claim 2,

the straight-line distance between two adjacent water through holes II (21-4) is larger than the diameter of the water through hole I (21-2).

6. A circulation pump according to claim 1,

the valve core (22-6) is fixedly connected with a guide rod (22-4), the second fixing ring (22-1) is provided with a guide hole (22-5), wherein,

the guide rod (22-4) penetrates through the guide hole (22-5) to be arranged, the elastic mechanism is sleeved on the guide rod (22-4), one end of the elastic mechanism props against the second fixing ring (22-1), and the other end of the elastic mechanism props against the valve core (22-6).

7. A circulation pump according to claim 1,

the elastic mechanism is a spring (22-3).

8. A circulation pump according to claim 1,

the drain valve (25) comprises a water inlet pipe,

the pump comprises a pump body (1), wherein the pump body (1) is provided with a water vapor channel (2) and a steam channel (3), the water vapor channel (2) and the steam channel (3) are shunted at an inlet (13) and converged at a pump cavity (4);

the flexible cover I (5), the flexible cover I (5) is an integrated net cover body, and the periphery of the net cover body is provided with a shielding body (9) in a surrounding manner;

an actuated portion (8), the actuated portion (8) being located within the pump cavity (4) below the first flexible cover (5);

the opening and closing valve head (10), the opening and closing valve head (10) is positioned on a water outlet (26) of the pump cavity (4) below the started part (8);

when the water-steam mixture props up the started part (8), the first flexible cover (5) is suitable for sequentially showing a concave shape, a flat shape and a convex shape and lifting the opening and closing valve head (10) to open the water outlet (26), and the water outlet (26) is communicated with the water inlet (20).

9. A circulation pump according to claim 8,

an actuating rod (7) is fixedly connected between the first flexible cover (5) and the actuated part (8), wherein the actuating rod (7) is lifted along with the lifting of the actuated part (8) so as to drive the first flexible cover (5) to sequentially present a concave shape, a flat shape and a convex shape.

10. The circulation pump of claim 9,

a connecting pipeline (11) is arranged at the joint of the steam channel (3) and the pump cavity (4), a second flexible cover (6) is arranged at the joint of the connecting pipeline (11), and the starting rod (7) penetrates through the first flexible cover (5) to be fixedly connected with the second flexible cover (6), and is

A plurality of through holes (12) are formed in the second flexible cover (6), and the edge of the second flexible cover (6) is fixedly connected with the connecting pipeline (11); when the starting rod (7) is lifted along with the lifting of the started part (8), the second flexible cover (6) sequentially takes on a concave shape, a flat shape and a convex shape.

Background

The drainage valve is a valve widely applied in water industry, and sewage discharge and liquid material discharge must pass through the drainage valve. The drain valves are of various types, can be divided into automatic, power-driven and manual modes according to power modes, can be divided into stop valves, check valves, ball valves, drain valves and the like according to purposes and effects, and different valves are suitable for different scenes. The drain valve is used for drainage for a long time, and after the drain valve is used for a long time, various dirt is gathered in the drain valve, but due to the limitation of a pipeline, cleaning and washing cannot be well carried out in the drain valve. If the solid cleaning agent is adopted, the internal accessories of the drain valve are corroded, and the service life is shortened.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome one of the technical problems in the prior art, a circulation pump is provided, which comprises

The drainage pipeline is provided with a water inlet and a left water outlet and a right water outlet, the water inlet is communicated with the drainage valve, and the drainage part is positioned at the left water outlet and used for controlling the on-off of the left water outlet; the backwashing part is positioned at the right water outlet and comprises a second fixing ring fixed in the drainage pipeline, a water outlet hole formed in the second fixing ring, a valve core arranged in the drainage pipeline in a sliding manner and an elastic mechanism arranged between the second fixing ring and the valve core; a connection portion in communication with the water inlet; when the water inlet is filled with water, the drainage part is opened, and the valve core is pushed by the water pressure to be tightly attached to the right water outlet so as to block the right water outlet; when the right water inlet is filled with water, the drainage part is closed, and the valve core is pushed by water pressure to be far away from the right water outlet so as to open the right water outlet.

Further, the drainage portion is including fixing solid fixed ring one in the drainage pipe, offer a plurality of limbers one on the solid fixed ring one, set up and be in the fender ring of solid fixed ring one side with offer a plurality of limbers two on the fender ring, wherein, keep off the ring and paste tightly gu fixed ring one sets up, keep off the ring and rotate the setting and be in the drainage pipe, limbers one with the limbers two phase corresponds. When the left water outlet needs to be closed, the baffle ring is rotated, so that the limber holes II on the baffle ring are not aligned with the limber holes I, and water cannot flow out of the limber holes I and the limber holes II. When the left water outlet needs to be opened, the baffle ring is rotated, so that the two water through holes in the baffle ring are aligned to the first water through hole, and water can flow out of the first water through hole and the second water through hole; in the process of rotating the baffle ring, the size of water flow at the left water outlet can be adjusted.

Furthermore, a third fixing ring is fixed in the drainage pipeline, a plurality of third water through holes are formed in the third fixing ring, a rotating shaft is fixed on the third fixing ring, and the baffle ring is rotatably arranged on the rotating shaft; and a rotating groove is formed in the drainage pipeline, a stirring block is fixed on the baffle ring and is positioned in the rotating groove and used for driving the baffle ring to rotate. In order to rotate the baffle ring better, the shifting block is arranged on the baffle ring, a user can manually shift the shifting block, the shifting block rotates in the rotating groove, and therefore the baffle ring is driven, the position of the second water through hole is adjusted, the overlapping degree of the second water through hole and the first water through hole is finally adjusted, and the water yield is adjusted.

Furthermore, the sizes of the first fixing ring, the second fixing ring and the baffle ring are consistent with the size of the inner wall of the drainage pipeline. When the retaining ring blocks the limber hole of the first fixing ring, water cannot flow out of a gap between the drainage pipeline and the first fixing ring, and the sealing performance is guaranteed.

Further, the straight-line distance between two adjacent water through holes II is larger than the diameter of the water through hole I. In order to enable the blocking ring to block the first limber hole and prevent water from flowing out of the first limber hole, the linear distance between every two adjacent second limber holes is larger than the diameter of the first limber hole, the diameters of the first limber hole and the second limber hole are consistent, the number of the first limber hole and the second limber hole is also consistent, the distance from the first limber hole to the circle center of the first fixing ring is consistent with the distance from the second limber hole to the circle center of the blocking ring, and namely the shape and the size of the blocking ring.

Furthermore, a guide rod is fixedly connected to the valve core, a guide hole is formed in the second fixing ring, the guide rod penetrates through the guide hole, the elastic mechanism is sleeved on the guide rod, one end of the elastic mechanism abuts against the second fixing ring, and the other end of the elastic mechanism abuts against the valve core.

Further, the elastic mechanism is a spring.

Further, the drain valve includes

The pump body is provided with a water vapor channel and a steam channel, and the water vapor channel and the steam channel are shunted at the inlet and converged at the pump cavity;

the flexible cover I comprises a screen cover body and a shielding body, wherein the screen cover body is integrally arranged, and the shielding body is arranged around the screen cover body;

an activated portion located within the pump cavity below the first flexible cover;

the opening and closing valve head is positioned on the water outlet of the pump cavity below the started part;

when the water-steam mixture props up by the start-up portion, flexible cover one is suitable for and presents spill, flat and flat shape and convex in proper order and promotes open and close the valve head to open the outlet, the outlet with the water inlet intercommunication.

Further, an actuating rod is fixedly connected between the first flexible cover and the actuated part, wherein the actuating rod is lifted along with the lifting of the actuated part so as to drive the first flexible cover to sequentially present a concave shape, a flat shape and a convex shape. When being promoted by the start-up portion under the effect of steam, drive the actuating lever rebound to prop open flexible cover one, flexible cover one presents spill, flat and flat shape and convex in proper order, and at this in-process, flexible cover one has also played the cushioning effect. The flexible cover is concave when in an initial state for temporarily storing water droplets liquefied from the vapor. When the first flexible cover is convex, namely umbrella-shaped, water drops in a part of steam can drop on the first flexible cover or directly drop to the bottom of the pump cavity, and the other part of the steam drops temporarily stored in the first concave flexible cover. Meanwhile, in the process that the starting rod props the first flexible cover, the first flexible cover shakes, and water drops on the first flexible cover drop in an acceleration mode. The starting rod plays a role in guiding water, and a part of water drops can drop to the bottom of the pump cavity from the starting rod. The first flexible cover also has a limiting function, and the upward movement stroke of the started part is limited.

Furthermore, a connecting pipeline is arranged at the joint of the steam channel and the pump cavity, a second flexible cover is arranged at the connecting pipeline, the starting rod penetrates through the first flexible cover to be fixedly connected with the second flexible cover, a plurality of through holes are formed in the second flexible cover, and the edge of the second flexible cover is fixedly connected with the connecting pipeline; when the actuating rod is lifted along with the lifting of the actuated part, the flexible cover II sequentially takes on a concave shape, a flat shape and a convex shape. The flexible covers are in the concave shape, water drops which are liquefied when meeting cold are distributed on the outer walls of the flexible covers II, and the concave flexible covers I are temporarily used for storing the water drops which are liquefied in the steam. The second flexible cover is similar to the flexible cover, the second flexible cover is unfolded by the starting rod along with the lifting of the starting part, and the second flexible cover sequentially presents a concave shape, a flat shape and a convex shape along with the lifting of the starting rod. In the process, the second flexible cover also plays a role in buffering. When flexible cover two is the convex, umbrella shape promptly, the water droplet of temporary storage will drop from the through-hole along the inclined plane of flexible cover two in flexible cover two when the concave state, still can be under the effect of the through-hole of flexible cover two in the continuous liquefied water droplet simultaneously, drip to flexible cover one or directly fall to pump cavity bottom, the water droplet that drips on flexible cover one is under the effect of flexible cover one, drip to the bottom of pump cavity, at this in-process, flexible cover two has also played the drainage effect. Meanwhile, in the process that the starting rod props up the second flexible cover and the first flexible cover, the second flexible cover and the first flexible cover can shake, and water drops on the second flexible cover and the first flexible cover drop in an acceleration mode. The starting rod penetrates through the first flexible cover and is fixedly connected with the second flexible cover, the starting rod also plays a role in flow guiding, and a part of water drops can drop onto the first flexible cover from the starting rod or directly drop to the bottom of the pump cavity.

Has the advantages that: 1. the invention provides a circulating pump, when a drain valve works, a drainage part is opened, namely a left water outlet is opened, a back washing part pushes a valve core to be tightly attached to a right water outlet due to the action of water pressure so as to block the right water outlet, and water can enter the drainage part from the drain valve and is discharged from the drainage part; when the drain valve is out of work, the drainage part is closed, namely the left water outlet is closed, the back washing part works, water flows to the right water outlet, the water pressure pushes the valve element to be away from the right water outlet so as to open the right water outlet, and water enters the drain valve from the right water outlet to wash the drain valve, so that the cleanness of the drain valve is guaranteed.

2. According to the invention, the first flexible cover and the second flexible cover are adopted, so that water drops which are liquefied when meeting cold in steam are discharged to the bottom of the pump body, and the water-steam separation effect is improved; the first flexible cover and the second flexible cover are made of rubber materials, so that splashing of water drops on the first flexible cover or the second flexible cover is reduced; because the starting rod is fixedly connected with the started part, the first flexible cover and the second flexible cover which are made of rubber, the first flexible cover and the second flexible cover play a role in buffering when the started part ascends or descends.

3. The starting rod is fixedly connected with the first flexible cover and the second flexible cover in sequence, and water drops on the first flexible cover and the second flexible cover can flow downwards to the bottom of the pump cavity along the starting rod, so that the water guide effect is achieved.

4. The first flexible cover and the second flexible cover can deform in the floating process of the started part, and the phenomenon that the started part impacts the first flexible cover is avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic of the water vapor flow of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a view of the concave shape of the first and second flexible covers of the present invention;

FIG. 4 is a view of the first and second convex configurations of the flexible cover of the present invention;

FIG. 5 is a schematic view of a flexible cover construction of the present invention;

FIG. 6 is a schematic view showing the internal structure of the drainpipe of the present invention;

FIG. 7 is a schematic view showing the external structure of the drainpipe according to the present invention;

FIG. 8 is a view showing a state where the first water passage hole and the second water passage hole of the present invention are completely overlapped;

FIG. 9 is a schematic view of the retaining ring of the present invention in a state retaining the retaining ring;

in the figure: 1. a pump body; 2. a water vapor channel; 3. a steam channel; 4. a pump cavity; 5. a first flexible cover; 6. a second flexible cover; 7. an actuating lever; 8. a started part; 9. a shielding body; 10. opening and closing the valve head; 11. connecting a pipeline; 12. a through hole; 13. an inlet; 14. a push block; 15. cleaning the sleeve; 16. a water dripping hole; 17. a connecting rod; 18. a steam outlet; 19. a water discharge pipeline; 20. a water inlet; 21. a water discharge section; 21-1, fixing a ring I; 21-2, a first water through hole; 21-3, a baffle ring; 21-4, a water through hole II; 21-5, fixing a ring III; 21-6 parts of a water through hole III; 21-7, a poking block; 21-8, a rotating groove; 21-9 parts of rotating shaft; 22. a backwashing section; 22-1 and a second fixing ring; 22-2, a drain hole; 22-3, a spring; 22-4, a guide rod; 22-5, a guide hole; 22-6, valve core; 23. a left water outlet; 24. a right water outlet; 25. a drain valve; 26. and a water outlet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

A circulation pump, comprising: the drainage pipeline 19 is provided with a water inlet 20 and a left water inlet and a right water inlet, the water inlet 20 is communicated with a drainage valve 25, and a drainage part 21 is arranged at the left water outlet 23 and is used for controlling the on-off of the left water outlet 23; the back washing part 22 is positioned at the right water outlet 24, and the back washing part 22 comprises a second fixing ring 22-1 fixed in the drainage pipeline 19, a water discharge hole 22-2 formed in the second fixing ring 22-1, a valve core 22-6 arranged in the drainage pipeline 19 in a sliding manner, and an elastic mechanism arranged between the second fixing ring 22-1 and the valve core 22-6; when the water inlet 20 is filled with water, the drainage part 21 is opened, and the water pressure pushes the valve core 22-6 to be tightly attached to the right water outlet 24 so as to block the right water outlet 24; when the right water inlet 20 is filled with water, the drainage part 21 is closed, and the valve core 22-6 is pushed by water pressure to be far away from the right water outlet 24 so as to open the right water outlet 24.

The drainage part 21 comprises a first fixing ring 21-1 fixed in the drainage pipeline 19, a plurality of first water through holes 21-2 formed in the first fixing ring 21-1, a retaining ring 21-3 arranged on one side of the first fixing ring 21-1 and a plurality of second water through holes 21-4 formed in the retaining ring 21-3, wherein the retaining ring 21-3 is tightly attached to the first fixing ring 21-1, the retaining ring 21-3 is rotatably arranged in the drainage pipeline 19, and the first water through holes 21-2 correspond to the second water through holes 21-4. When the left water outlet 23 needs to be closed, the baffle ring 21-3 is rotated, so that the second water through hole 21-4 on the baffle ring 21-3 is not aligned with the first water through hole 21-2, and water cannot flow out of the first water through hole 21-2 and the second water through hole 21-4. When the left water outlet 23 needs to be opened, the baffle ring 21-3 is rotated, so that the second water through hole 21-4 on the baffle ring 21-3 is aligned to the first water through hole 21-2, and water can flow out of the first water through hole 21-2 and the second water through hole 21-4; in the process of rotating the baffle ring 21-3, the water flow of the left water outlet 23 can be adjusted.

A fixed ring III 21-5 is fixed in the drainage pipeline 19, a plurality of water through holes III 21-6 are formed in the fixed ring III 21-5, a rotating shaft 21-9 is fixed on the fixed ring III 21-5, and the baffle ring 21-3 is rotatably arranged on the rotating shaft 21-9; and a rotating groove 21-8 is formed in the drainage pipeline 19, a shifting block 21-7 is fixed on the baffle ring 21-3, and the shifting block 21-7 is positioned in the rotating groove 21-8 and is used for driving the baffle ring 21-3 to rotate. In order to rotate the baffle ring 21-3 better, the shifting block 21-7 is arranged on the baffle ring 21-3, a user can manually shift the shifting block 21-7, the shifting block 21-7 rotates in the rotating groove 21-8, so that the baffle ring 21-3 is driven, the position of the second water through hole 21-4 is adjusted, finally, the overlapping degree of the second water through hole 21-4 and the first water through hole 21-2 is adjusted, and the adjustment of water yield is realized. The rotating shaft 21-9 is a stepped shaft, one end of the baffle ring 21-3, which is far away from the first fixing ring 21-1, is abutted against the rotating shaft 21-9, and the other surface of the baffle ring 21-3 is tightly attached to the first fixing ring 21-1, so that the first fixing ring 21-1 is prevented from axially moving on the rotating shaft 21-9.

The sizes of the first fixing ring 21-1, the second fixing ring 22-1 and the baffle ring 21-3 are consistent with the size of the inner wall of the drainage pipeline 19. When the baffle ring 21-3 blocks the water through hole I21-2 of the fixing ring I21-1, water cannot flow out of a gap between the water drainage pipeline 19 and the fixing ring I21-1, and sealing performance is guaranteed.

The straight-line distance between two adjacent water through holes I21-4 is larger than the diameter of the water through hole I21-2. In order to enable the blocking ring 21-3 to block the first water through hole 21-2 and prevent water from flowing out of the first water through hole 21-2, the linear distance between every two adjacent second water through holes 21-4 is larger than the diameter of the first water through hole 21-2, the diameters of the first water through hole 21-2 and the second water through hole 21-4 are the same, the number of the first water through holes 21-2 is the same as that of the first fixing ring 21-1, the distance from the first water through hole 21-2 to the circle center of the second water through hole 21-4 to the circle center of the blocking ring 21-3 is the same as that of the first fixing ring 21-3, and the shape and the size of the blocking ring 21-3 are the same as those of the first fixing ring 21-1.

The valve core 22-6 is fixedly connected with a guide rod 22-4, the second fixing ring 22-1 is provided with a guide hole 22-5, the guide rod 22-4 penetrates through the guide hole 22-5, the elastic mechanism is sleeved on the guide rod 22-4, one end of the elastic mechanism props against the second fixing ring 22-1, and the other end of the elastic mechanism props against the valve core 22-6.

The elastic mechanism is a spring 22-3.

The drain valve 25 comprises a pump body 1, the pump body 1 is provided with a water vapor channel 2 and a steam channel 3, and the water vapor channel 2 and the steam channel 3 are shunted to the inlet 13 and converged to the pump cavity 4;

the flexible cover I5 is a screen cover body which is arranged integrally with the flexible cover I5, and the periphery of the screen cover body is provided with a shielding body 9 in a surrounding manner;

an activated part 8, wherein the activated part 8 is positioned in the pump cavity 4 below the flexible cover I5;

the start-stop valve head 10 is positioned on the water outlet 26 of the pump cavity 4 below the activated part 8, and the start-stop valve head 10 is positioned on the water outlet 26 of the pump cavity 4;

when the water-steam mixture props up the started part 8, the first flexible cover 5 is suitable for sequentially taking on a concave shape, a flat shape and a convex shape and lifting the start-stop valve head 10 to open the water outlet 26, and the water outlet 26 is communicated with the water inlet 20.

An actuating rod 7 is fixedly connected between the flexible cover I5 and the actuated part 8, wherein the actuating rod 7 is lifted along with the lifting of the actuated part 8 so as to drive the flexible cover I5 to sequentially present a concave shape, a flat shape and a convex shape. When being promoted by the start-up portion 8 under the effect of steam, drive start-up lever 7 and upwards remove to prop open flexible cover 5, flexible cover 5 presents spill, flat and flat shape and convex in proper order, and at this in-process, flexible cover 5 has also played the cushioning effect. The flexible cover 5 is concave when in an initial state and is used for temporarily storing water drops formed by liquefaction in the steam. When the first flexible cover 5 is convex, namely umbrella-shaped, water drops in a part of steam can drop on the first flexible cover 5 or directly drop to the bottom of the pump cavity 4, and the other part of the steam drops temporarily stored in the concave first flexible cover 5. due to the fact that the first flexible cover 5 is opened to be convex, the water drops drop to the bottom of the pump cavity 4 under the action of the first flexible cover 5, and in the process, the first flexible cover 5 also plays a drainage role. Meanwhile, in the process of expanding the flexible cover-5 by the actuating rod 7, the flexible cover-5 can shake, and the water drops on the flexible cover-5 are accelerated to fall off. The actuating rod 7 serves as a flow guide, and a part of water drops can drop from the actuating rod 7 to the bottom of the pump cavity 4. The first flexible cover 5 also plays a limiting role, and the upward movement stroke of the started part 8 is limited. A connecting pipeline 11 is arranged at the joint of the steam channel 3 and the pump cavity 4, a flexible cover II 6 is arranged at the joint of the connecting pipeline 11, the starting rod 7 penetrates through the flexible cover I5 to be fixedly connected with the flexible cover II 6, a plurality of through holes 12 are formed in the flexible cover II 6, and the edge of the flexible cover II 6 is fixedly connected with the connecting pipeline 11; when the actuating rod 7 is lifted along with the lifting of the actuated part 8, the flexible cover two 6 sequentially takes on a concave shape, a flat shape and a convex shape. The first flexible cover 5 is in a concave shape at first, the outer wall of the second flexible cover 6 is full of water drops which are liquefied when being cooled, and the first concave flexible cover 5 is temporarily used for storing the water drops which are liquefied in the steam. The second flexible cover 6 is the same as the first flexible cover 5, the second flexible cover 6 is unfolded by the starting rod 7 along with the lifting of the started part 8, and the second flexible cover 6 sequentially takes on a concave shape, a flat shape and a convex shape along with the lifting of the starting rod 7. In the process, the second flexible cover 6 also plays a role of buffering. When the second flexible cover 6 is convex, namely umbrella-shaped, water drops temporarily stored in the second flexible cover 6 in the concave state drop from the through hole 12 along the inclined plane of the second flexible cover 6, meanwhile, the water drops continuously liquefied can drop on the first flexible cover 5 or directly drop to the bottom of the pump cavity 4 under the action of the through hole 12 of the second flexible cover 6, the water drops dropping on the first flexible cover 5 drop to the bottom of the pump cavity 4 under the action of the first flexible cover 5, and in the process, the second flexible cover 6 also plays a role in drainage. Meanwhile, in the process that the actuating rod 7 props up the second flexible cover 6 and the first flexible cover 5, the second flexible cover 6 and the first flexible cover 5 shake, and water drops on the second flexible cover 6 and the first flexible cover 5 are accelerated to fall. The starting rod 7 penetrates through the first flexible cover 5 to be fixedly connected with the second flexible cover 6, the starting rod 7 also plays a role in guiding water, and a part of water drops can drop onto the first flexible cover 5 from the starting rod 7 or directly drop to the bottom of the pump cavity 4.

The through hole 12 is arranged on one surface of the flexible cover II 6 close to the inlet 13 of the pump body 1. The through hole 12 is arranged close to one surface of the inlet 13 of the pump body 1, so that water drops formed by liquefaction of steam are prevented from splashing to the steam outlet 18 of the pump cavity 4 in the process of dripping downwards, and part of the water drops are wrapped and carried away with the steam again.

The starting rod 7 is sleeved with a push block 14, and the push block 14 is positioned above and below the first flexible cover 5 or the second flexible cover 6. A push block 14 is arranged on the starting rod 7, the push block 14 is a circular ring, and the push block 14 pushes the first flexible cover 5 or the second flexible cover 6 to deform, namely the push block 14 pushes the first flexible cover 5 or the second flexible cover 6 to change into a concave shape, a flat shape and a convex shape. The pushing block 14 improves the deformation effect of the first flexible cover 5 or the second flexible cover 6, so that the first flexible cover 5 or the second flexible cover 6 is better deformed. If do not set up ejector pad 14, actuating lever 7 is the shaft-like, and when actuating lever 7 reciprocated, it is not necessarily can make flexible cover one 5 or flexible cover two 6 take place deformation, perhaps flexible cover one 5 or flexible cover two 6 deformation effect is not good to can not be fine with the steam separation.

The started part 8 is spherical, a cleaning sleeve 15 is sleeved on the started part 8, wherein the size of the cleaning sleeve 15 corresponds to that of the pump cavity 4; the cleaning sleeve 15 is provided with a water dripping hole 16. The cleaning sleeve 15 is fixed on the started part 8 and clings to the inner wall of the pump cavity 4. The started part 8 moves upwards under the action of the water-vapor mixture, so that the air pressure above the started part 8 is extruded, the steam above the started part rapidly flows from the steam outlet 18 in the pump cavity 4, and the flowing directionality of the steam is improved. Meanwhile, in the process that the started part 8 moves upwards, the cleaning sleeve 15 around the started part 8 cleans the inner wall of the pump cavity 4, and the inside of the pump cavity 4 is kept clean. The drip holes 16 are arranged to allow water droplets to drip from the drip holes 16 to the bottom of the pump chamber 4.

The cleaning sleeve 15 is made of rubber. Adopt the rubber material, improved clean effect, secondly, the rubber material makes clean cover 15 and 4 inner walls of pump chamber laminate tighter.

The activated part 8 is connected with a connecting rod 17, and the connecting rod 17 is fixed with the opening and closing valve head 10. When the starting part 8 lifts, the connecting rod 17 is driven, and the connecting rod 17 drives the opening and closing valve head 10 to move upwards, so that the water outlet is opened.

A steam outlet 18 is arranged in the pump cavity 4, wherein the steam outlet 18 is positioned above the first flexible cover 5.

The size of the first flexible cover 5 is consistent with that of the pump cavity 4.

When the first flexible cover 5 and the second flexible cover 6 are in the concave shape, the activated part 8 does not start to lift. In the process of water-gas separation, more and more water vapor at the bottom can be accumulated, so that the started part 8 is promoted to be lifted suddenly; during the lifting process, due to the existence of the flexible cover I5 and the flexible cover II 6, the flexible cover I can act as a good buffer air bag to prevent the sudden impact of the activated part 8 so as to protect various parts;

synchronously, in the process of water-gas separation, steam is liquefied when meeting cold in the pipeline, and a part of liquefied water drops are firstly gathered towards the bottom of the middle end of the flexible cover II 6 and then slide into the flexible cover I5 along the side wall of the starting rod 7 under the action of gravity, so that the water drops are prevented from hanging and dropping to generate sputtering to fall into the steam outlet 18 to a certain extent; another part of the liquefied water drops directly drop downward and form spatters after touching the surface of the flexible cover-5, and at this time, because the flexible cover-5 is in a concave shape, the spattered water drops are covered in the flexible cover-5, and the disturbance of the spattered water drops to the steam at the steam outlet 18 is largely prevented.

Part of the water drops are stuck to the hole opening of the first flexible cover 5 or the through hole 12 of the second flexible cover 6 under the action of tension, and along with the continuous jacking process of the starting rod 7, the first flexible cover 5 and the second flexible cover 6 start to gradually deform to break the dynamic balance of the water drops, so that the water drops are broken to promote the water drops to be discharged.

The starting part 8 is continuously lifted to enable the starting rod 7 to push the first flexible cover 5 and the second flexible cover 6 until the first flexible cover 5 and the second flexible cover 6 are convex, at the moment, the water outlet is completely opened, a large amount of water vapor is discharged, and the starting part 8 gradually falls along with the discharge of the water vapor to enable the first flexible cover 5 and the second flexible cover 6 to return to the concave shape. In the whole process, the first flexible cover 5 changes from the concave shape to the convex shape in a circulating mode, and the second flexible cover 6 changes from the concave shape to the convex shape in a synchronous circulating mode, so that water drops are promoted to be discharged in the shaking process.

The working principle is as follows: steam mixture enters into pump cavity 4 from inlet 13 in, and steam flows into pump cavity 4 top from the steam passageway 3 of top, and steam mixture enters into pump cavity 4 bottom from steam passageway 2, and steam mixture shore is by starting portion 8, and pump cavity 4 bottom is constantly entered into along with continuous steam mixture. Steam above the pump cavity 4 is liquefied into water drops when meeting cold and is attached to the flexible cover II 6 and the flexible cover I5, and the water drops slowly accumulate in the flexible cover I5 and the flexible cover II 6 due to the fact that the flexible cover I5 and the flexible cover II 6 in the initial state are concave, and part of the water drops can flow downwards to the bottom of the pump cavity 4 along the starting rod 7. When the water-vapor mixture at the bottom of the pump cavity 4 is increased continuously, the started part 8 is lifted upwards due to buoyancy.

In the lifting process, the started part 8 firstly drives the starting rod 7 to move upwards, the first flexible cover 5 and the second flexible cover 6 gradually change from a concave shape to a flat shape and finally to a convex shape until the started part 8 cannot move upwards under the limit of the first flexible cover 5.

When the first flexible cover 5 and the second flexible cover 6 become convex, i.e. umbrella-shaped, the size of the first flexible cover 5 is consistent with the size of the pump cavity 4. The water drops accumulated in the flexible cover II 6 drop onto the flexible cover I5 from the through hole 12, the water drops accumulated in the flexible cover I5 and the water drops flowing down from the flexible cover II 6 flow to the started part 8 and the cleaning sleeve 15 because the flexible cover I5 is a net cover body, and the water drops drop to the bottom of the pump cavity 4 from the water dropping hole 16 because the cleaning sleeve 15 is provided with the water dropping hole 16.

Because the opening and closing valve head 10 at the bottom of the started part 8 is opened, and the air pressure at the bottom of the started part 8 is rapidly reduced, the time for the first flexible cover 5 and the second flexible cover 6 to become convex is very short, the time for water drops to drop from the second flexible cover 6 to the first flexible cover 5 is very short, and the through hole 12 is formed in the surface, close to the inlet 13 of the pump body 1, of the second flexible cover 6, so that the water drops formed by steam liquefaction are effectively prevented from splashing to the steam outlet 18 of the pump cavity 4 in the process of dropping downwards, and part of the water drops are wrapped again and flow away along with the steam.

The started part 8 floats upwards to drive the start-stop valve head 10 to move upwards, the water inlet 20 is communicated with the water outlet 26, the water discharging part 21 is opened, the baffle ring 21-3 is rotated, so that the second water through hole 21-4 on the baffle ring 21-3 is aligned with the first water through hole 21-2, therefore, water can flow out from the first water through hole 21-2 and the second water through hole 21-4, namely, the left water outlet 23 is opened, the back washing part 22 pushes the valve core 22-6 to be tightly attached to the right water outlet 24 under the action of water pressure so as to block the right water outlet 24, and water can enter the water discharging part 21 from the water discharge valve 25 and then is discharged from the water discharging part 21; when the drainage valve 25 does not work, the valve head 10 is opened and closed to block the drainage port 26, the drainage part 21 is closed, the baffle ring 21-3 is rotated, so that the water through hole II 21-4 on the baffle ring 21-3 is not aligned with the water through hole I21-2, so that the water can not flow out from the first water through hole 21-2 and the second water through hole 21-4, namely, the left water outlet 23 is closed, the back washing part 22 works to feed water to the right water outlet 24, the valve core 22-6 is pushed by water pressure to be far away from the right water outlet 24, so as to open the right water outlet 24, water enters the water inlet 20 of the drain valve 25 from the right water outlet 24, then the water reaches the water outlet 26, the valve head 10 is upwards flushed, the water outlet 26 is communicated with the water inlet 20, the valve head 10 drives the started part 8 to float upwards, thereby, the flushing of the interior of the pump cavity 4 of the drain valve 25 can be carried out, and the cleanness of the drain valve 25 is ensured.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.