1. The naked open type pipe clamp valve comprises a valve body (1), and is characterized in that a sealing component (2), a sealing component (3) connected with an execution end of the sealing component (2) and a rubber pipe component (4) connected with an execution end of the sealing component (3) are connected to the inside of the valve body (1), wherein the rubber pipe component (4) comprises a sleeve (41) inserted into the valve body (1) and a clamp valve hose (42) inserted into the sleeve (41);

seal assembly (3) including a plurality of guide bar (33) of connecting in valve body (1) both ends to and wear to locate guide bar (33) and two clamping ring (32) on sleeve pipe (41) are located to the cover, every one side surface that clamping ring (32) are close to another clamping ring (32) all articulate have with connecting rod (31) that closed assembly (2) execution end is connected when needs compress tightly press from both sides valve hose (42), open towards both sides through two connecting rod (31) of closed assembly (2) drive, so that two clamping ring (32) carry out the motion back to back along sleeve pipe (41) and compress tightly and press from both sides valve hose (42).

2. The bare open type pipe clamp valve according to claim 1, wherein the closing component (2) comprises a screw rod (21) connected to the top end of the valve body (1) through a thread pair, an air suction mechanism (22) fixed inside the screw rod (21) and connected with the air delivery port of the sleeve (41), and a telescopic rod (24) fixed on the surface of the bottom end of the inner cavity of the valve body (1), wherein one end of the screw rod (21) close to the telescopic rod (24) and one end of the telescopic rod (24) close to the screw rod (21) are both rotatably connected with a clamping plate (23).

3. The bare open pinch valve according to claim 2, wherein the air suction mechanism (22) comprises an air suction cylinder (221), and an air inlet of the air suction cylinder (221) is connected with the sleeve (41) through a hose.

4. The bare open type pipe clamp valve according to claim 3, wherein the outer peripheral surfaces of the two ends of the sleeve (41) are provided with grooves (411) for inserting the pressing rings (32), the inner peripheral surfaces of the two ends of the sleeve (41) are provided with storage grooves (412), and the storage grooves (412) and the grooves (411) corresponding to the same side are arranged in a staggered manner.

5. The bare open type pinch valve according to claim 4, wherein sealing rings (421) inserted into the corresponding storage grooves (412) on the same side are fixed on the outer peripheral surfaces of both ends of the pinch valve hose (42).

6. The bare open type pipe clamp valve according to claim 5, wherein a terminating ring (422) sleeved on the outer peripheral surface of the clamp valve hose (42) is arranged on one side of each sealing ring (421) far away from the other sealing ring (421), and a plurality of arc-shaped grooves (423) for the guide rods (33) to penetrate are formed in the outer peripheral surface of each terminating ring (422).

7. The bare open type pipe clamp valve according to claim 1, wherein the valve body (1) comprises a left shell (11) and a right shell (12), a plurality of connecting lugs (13) are fixed on the outer surfaces of the left shell (11) and the right shell (12), and each connecting lug (13) is provided with a through hole for inserting a bolt.

8. The bare open pinch valve according to claim 7, wherein expansion chambers (14) are fixed to both sides of the left housing (11) and the right housing (12).

9. The bare open pinch valve according to claim 1, wherein the telescoping rod (24) is a gas spring.

10. The bare open type pipe clamp valve according to claim 9, wherein the screw (21) penetrates through the top end surface of the valve body (1) and extends to the end inside the valve body (1) to be connected with a pressing component (26), the pressing component (26) comprises a spring (262), the spring (262) is sleeved on the screw (21) and extends to the end inside the valve body (1) through the top end surface of the valve body (1), the top end of the spring (262) is abutted against a pressure-bearing ring (261), and the inner ring surface of the pressure-bearing ring (261) is engaged with the screw (21).

Background

Pinch valves are devices used in fluid systems to control fluid direction, pressure, and flow, and are control components in pipeline fluid delivery systems.

According to the naked open type pipe clamp valve that patent document with application number CN201220275854.7 provided, this product includes valve body, lower valve body and valve rod, forms wafer formula structure through last depression bar and depression bar to the rubber tube on the valve body down to realize opening and closing of pipeline, split type valve body, convenient to detach during the maintenance can adopt the rubber tube of different varieties, wear-resisting, corrosion-resistant.

It is known from the pipe clamp valve provided in the patent document CN201220194554.6, the product includes a housing, a rubber lining disposed in the housing, upper and lower clamping plates disposed on the upper and lower sides of the rubber lining, an operating screw disposed above the upper clamping plate, the upper clamping plate being fixed to an auxiliary screw in the operating screw, the lower clamping plate being fixed to a pulling plate screwed on a main screw in the operating screw through two pull rods, a pulling plate guide groove disposed on the housing, the upper and lower clamping plates moving synchronously in opposite directions with the rotation of the main screw, and the upper and lower side walls of the extruded portion of the rubber lining being in smooth transition with the upstream and downstream side walls all the time in a shape of an integral arc during the extrusion process, thereby ensuring the smooth flow of fluid therein, greatly reducing the wear of the rubber lining by the fluid, and prolonging the service life of the rubber lining, while the lining is made of nai nt rubber, on the basis of maintaining good elasticity of the lining, further improving the cutting resistance, tearing resistance and wear resistance of the rubber lining.

However, the pinch valve has some drawbacks, for example, although the pinch valve has the advantage of convenient maintenance and disassembly, when the pinch plate in the conventional pinch valve is deformed by squeezing the rubber tube of the pinch valve, a certain gap is formed between the pinch valve and the rubber tube due to different shapes, which affects the closing effect of the pinch valve.

Disclosure of Invention

The invention mainly provides a naked open type pipe clamp valve which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a naked open pipe clamp valve, including the valve body, the internally connected of valve body have the seal assembly, with the seal assembly that the seal assembly execution end is connected, and with the rubber tube assembly that the seal assembly execution end is connected, the rubber tube assembly including alternate in the inside sleeve pipe of valve body, and alternate in the double-layered valve hose of cover intraduct, seal assembly is including a plurality of guide bars of connecting in the valve body both ends to and wear to locate two clamping rings on the sleeve pipe of guide bar and cover, every one side surface that the clamping ring is close to another clamping ring all articulate have with the connecting rod that the seal assembly execution end is connected, when needs compress tightly the double-layered valve hose, open towards both sides through two connecting rods of seal assembly drive to make two clamping rings carry out the motion of carrying on the back along the sleeve pipe and compress tightly the double-layered valve hose.

Furthermore, the closing component comprises a screw rod connected with the top end of the valve body through a thread pair, an air exhaust mechanism fixed inside the screw rod and connected with the sleeve air delivery port, and a telescopic rod fixed on the surface of the bottom end of the inner cavity of the valve body, wherein one end of the screw rod close to the telescopic rod and one end of the telescopic rod close to the screw rod are both rotatably connected with clamping plates

Furthermore, the air exhaust mechanism comprises an air exhaust cylinder, and an air inlet of the air exhaust cylinder is connected with the sleeve through a hose.

Furthermore, the sleeve pipe outside is equipped with a plurality of guide bars that use sleeve pipe radial plane to encircle the setting as the center pin, and is a plurality of the guide bar alternate in on the valve body and run through two in proper order the clamping ring.

Furthermore, the outer peripheral surfaces of the two ends of the sleeve are provided with grooves for inserting the pressing rings, the inner peripheral surfaces of the two ends of the sleeve are provided with storage grooves, and the storage grooves and the grooves corresponding to the same side are arranged in a staggered mode.

Furthermore, sealing rings inserted into the same side corresponding to the storage grooves are fixed on the peripheral surfaces of the two ends of the valve clamping hose.

Furthermore, one side of each sealing ring, which is far away from the other sealing ring, is provided with a termination ring which is sleeved on the outer peripheral surface of the valve clamping hose, and the outer peripheral surface of each termination ring is provided with a plurality of arc-shaped grooves for the guide rods to penetrate.

Further, the valve body is including left casing and right casing, the surface of left side casing and right casing all is fixed with a plurality of engaging lugs, every all set up the through-hole that supplies the bolt to alternate on the engaging lug casing.

Furthermore, expansion chambers are fixed on two sides of the left shell and the right shell.

Furthermore, the telescopic rod is a gas spring.

Furthermore, the screw rod penetrates through one end, extending to the inside of the valve body, of the top end surface of the valve body, and is connected with a pressing assembly, the pressing assembly comprises a spring, the spring is sleeved on one end, extending to the inside of the valve body, of the top end surface of the valve body, the top end of the spring is abutted to the pressure bearing ring, and the inner ring surface of the pressure bearing ring is meshed and connected with the screw rod.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the clamp valve hose can be compressed, the shaking of two ends of the clamp valve hose is prevented, the clamp plate is influenced to shrink the clamp valve hose, and the clamp valve hose compression device specifically comprises: when the screw rod can move downwards, the pressing ring hinged on the connecting rod in the sealing assembly is pushed by the hinged connecting rod on the clamping plate at the bottom end of the pressing ring, so that the two pressing rings move back to back along the sleeve penetrating and inserted on the valve body until the pressing ring presses the sleeve inserted with the valve clamping hose, and the valve clamping hose is prevented from moving horizontally.

Secondly, the valve clamping hose can be further pushed after the two clamping plates simultaneously extrude the valve clamping hose, so that the sealing performance of the valve clamping hose is improved, and the valve clamping hose extruding device specifically comprises: after the opening of the valve clamping hose is reduced by the clamping plate, air in a gap formed between the sleeve and the valve clamping hose is pumped out through the air pumping cylinder in the screw rod, so that air pressure in the gap is reduced, the sleeve and the valve clamping hose are attached to each other, and the sleeve retracts and compresses the valve clamping hose due to the vacuum of the inner cavity.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is an axial cross-sectional structural schematic view of the present invention;

FIG. 4 is a schematic structural view of the hose assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of the bushing of the present invention;

FIG. 6 is a schematic view of the internal structure of the valve body of the present invention;

FIG. 7 is a schematic view of the internal cross-sectional structure of the valve body of the present invention;

fig. 8 is a schematic sectional structure view of the valve body of the present invention.

In the figure: 1. a valve body; 11. a left housing; 12. a right housing; 13. connecting lugs; 14. a flash chamber; 2. a closure assembly; 21. a screw; 22. an air extraction mechanism; 221. an air pumping cylinder; 23. a splint; 24. a telescopic rod; 3. a seal assembly; 31. a connecting rod; 32. pressing a ring; 33. a guide bar; 4. a hose assembly; 41. a sleeve; 411. a groove; 412. a storage tank; 42. a pinch valve hose; 421. a seal ring; 422. a termination ring; 423. an arc-shaped groove.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, referring to fig. 1-4, in a preferred embodiment of the present invention, a bare open type pinch valve includes a valve body 1, a sealing assembly 2, a sealing assembly 3 connected to an executing end of the sealing assembly 2, and a rubber tube assembly 4 connected to an executing end of the sealing assembly 3 are connected to an inside of the valve body 1, the rubber tube assembly 4 includes a sleeve 41 inserted into the valve body 1 and a pinch valve hose 42 inserted into the sleeve 41, the sealing assembly 3 includes a plurality of guide rods 33 connected to two ends of the valve body 1, and two press rings 32 inserted into the guide rods 33 and sleeved on the sleeve 41, a side surface of each press ring 32 near another press ring 32 is hinged with a connecting rod 31 connected to the executing end of the sealing assembly 2, when the pinch valve hose 42 needs to be pressed, the two connecting rods 31 are driven to open towards two sides by the sealing assembly 2, so that the two press rings 32 move back and forth along the sleeve 41 and press the pinch valve hose 42.

It should be noted that, in the present embodiment, since the pressing rings 32 are connected to the closing assembly 2 through the connecting rod 31, the two pressing rings 32 move back and forth along the sleeve 41 inserted through the valve body 1 until the pressing rings 32 press the sleeve 41 with the valve clamping hose 42 inserted therein, so as to prevent the valve clamping hose 42 from translating.

Specifically, referring to fig. 1, in another preferred embodiment of the present invention, the valve body 1 includes a left housing 11 and a right housing 12, a plurality of connecting lugs 13 are fixed on outer surfaces of the left housing 11 and the right housing 12, each connecting lug 13 is provided with a through hole for inserting a bolt, and expansion chambers 14 are fixed on two sides of the left housing 11 and the right housing 12;

it should be noted that, in the present embodiment, the valve body 1 can be divided into the left housing 11 and the right housing 12, so that a worker can conveniently detach the valve body 1 into the left housing 11 and the right housing 12 by using the connecting lugs 13 on the left housing 11 and the right housing 12, so that the pinch valve can be detached quickly;

further, because all be equipped with flash chamber 14 on left casing 11 and the right casing 12 to make things convenient for valve body 1 to utilize the inner chamber of flash chamber 14 to supply splint 23 to slide, provide the direction for splint 23, make splint 23 carry out the translation along the straight line all the time, prevent splint 23 skew track, influence its clamp tight to clamp valve hose 42.

Specifically, please refer to fig. 1 and 2 again, in another preferred embodiment of the present invention, the air pumping mechanism 22 includes an air pumping cylinder 221, and an air inlet of the air pumping cylinder 221 is connected to the casing 41 through a hose;

it should be noted that, in this embodiment, a worker can extract air in a gap formed between the casing 41 and the pinch valve hose 42 through the air extracting cylinder 221, so as to reduce air pressure in the gap, so that the casing 41 and the pinch valve hose 42 are tightly attached to each other, and thus the clamping effect on the pinch valve hose 42 is improved by retracting the casing 41 due to the vacuum in the inner cavity and pressing the pinch valve hose 42;

furthermore, the connecting piece of connecting rod 31 style fixes the top tap of pump bowl 221 at the top of valve body 1, thereby driving the cylinder of pump bowl 221 to move down along with screw 21, making the pump bowl 221 automatically pump air, providing convenience for starting pump bowl 221, and saving manpower.

Specifically, referring to fig. 2 and 4, in another preferred embodiment of the present invention, the sealing assembly 2 includes a screw 21 connected to the top end of the valve body 1 through a pair of threads, an air-extracting mechanism 22 fixed inside the screw 21 and connected to the air-delivery port of the sleeve 41, and an expansion link 24 fixed on the surface of the bottom end of the inner cavity of the valve body 1, one end of the screw 21 close to the expansion link 24 and one end of the expansion link 24 close to the screw 21 are both rotatably connected with a clamp plate 23, a plurality of guide rods 33 surrounding the radial plane of the sleeve 41 as a central axis are disposed outside the sleeve 41, the plurality of guide rods 33 penetrate through the valve body 1 and sequentially penetrate through the two pressing rings 32, a groove 411 for inserting the pressing ring 32 is disposed on the outer circumferential surface of both ends of the sleeve 41, a storage groove 412 is disposed on the inner circumferential surface of both ends of the sleeve 41, the storage grooves 412 are disposed in a staggered manner with the same side corresponding to the grooves 411, the outer peripheral surfaces of two ends of the valve clamping hose 42 are respectively fixed with sealing rings 421 inserted into the corresponding storage grooves 412 on the same side, one side of each sealing ring 421, which is far away from the other sealing ring 421, is provided with a stop ring 422 sleeved on the outer peripheral surface of the valve clamping hose 42, the outer peripheral surface of each stop ring 422 is provided with a plurality of arc-shaped grooves 423 for the insertion of the guide rods 33, and the telescopic rod 24 is an air spring;

it should be noted that, in this embodiment, because the screw 21 is engaged with the valve body 1, when the worker rotates the screw 21, the screw 21 converts the rotation motion of the screw 21 into a linear motion along the track formed by the top thread of the valve body 1, so that the screw 21 drives the clamping plate 23 to compress the sleeve 41 along with the downward movement of the screw 21;

furthermore, as the clamping plates 23 on the telescopic rod 24 are hinged with the pressing ring 32 through the connecting rods 31, when the pressing ring 32 is pushed by the connecting rods 31 at the bottom ends of the screw rods 21 to move back and forth, the connecting rods 31 at two ends of the clamping plates 23 at the top end of the telescopic rod 24 are also flattened, so that the telescopic rod 24 is driven to stretch and contract and the clamping plates 23 on the telescopic rod 24 are driven to be close to the other clamping plates 23, and no other power source is required to be arranged;

furthermore, the telescopic rod 24 is an air spring, so that the stability of the clamping plate 23 on the telescopic rod 24 during translation is improved;

furthermore, the sealing ring 421 on the outer peripheral surface of the valve clamping hose 42 can be clamped into the groove body of the storage groove 412 on the inner peripheral surface of the sleeve 41, and the pressing ring 32 can be inserted into the groove body of the groove 411 on the outer peripheral surface of the sleeve 41, so that when the two pressing rings 32 move back and forth under the driving of the connecting rod 31 hinged to the bottom end of the screw 21, the pressing ring 32 in the groove 411 can extrude the body of the sleeve 41, and the sleeve 41 transmits the extrusion force to the sealing ring 421 in the storage groove 412, thereby reducing the gap between the valve clamping hose 42, the sleeve 41 and the inner wall surface of the valve body 1, and further improving the sealing property in the gap formed between the valve clamping hose 42 and the sleeve 41;

further, the sleeve 41 is blocked by the valve body 1 housing through the end rings 422, thereby reducing the translational movement of the sleeve 41.

Further, because the guide rod 33 alternates on the valve body 1 to utilize the valve body 1, the clamping ring 32 that wears to establish on it is guided to move along the straight line, and the arc 423 that supplies the guide rod 33 to alternate that the clamp valve hose 42 offered through last stop ring 422 on it, when making the clamp valve hose 42 rotate, the guide rod 33 can block the arc 423 cell body of the stop ring 422 at both ends of the clamp valve hose 42, thereby fixes a position.

Specifically, please refer to fig. 7 again, one end of the screw 21 extending through the top end surface of the valve body 1 to the inside of the valve body 1 is connected with a pressing assembly 26, the pressing assembly 26 includes a spring 262, the spring 262 is sleeved on one end of the screw 21 extending through the top end surface of the valve body 1 to the inside of the valve body 1, the top end of the spring 262 is abutted against the pressure-bearing ring 261, and the inner ring surface of the pressure-bearing ring 261 is engaged with the screw 21;

specifically, please refer to the attached drawings again, so that when the clamping plate 23 vibrates, the vibration force is absorbed by the spring 262 on the screw 21, thereby improving the stability of the clamping plate 23 during operation;

further, a spring 262 sleeved on the screw 21 may be further installed on the bearing ring 261 at the top end of the spring 262, so that the plurality of springs 262 are used to absorb the vibration force.

The specific operation mode of the invention is as follows:

when the pipe clamp valve is closed to cut off the material in the pipe clamp valve hose 42, a worker firstly rotates the screw rod 21, the screw rod 21 converts the rotation motion of the screw rod 21 into linear motion along a track formed by the top thread of the valve body 1, so that the bottom end clamping plate 23 of the screw rod 21 is used for extruding the pipe clamp valve hose 42 along with the downward movement of the screw rod 21, the pipe clamp valve hose 42 is deformed and the opening of the pipe clamp valve hose is reduced, and along with the downward movement of the screw rod 21, the screw rod 21 can push the pressing ring 32 hinged on the connecting rod 31 in the sealing assembly 3 through the connecting rod 31 hinged on the bottom end clamping plate 23 of the screw rod 21, so that the two pressing rings 32 move back and forth along the sleeve 41 inserted on the valve body 1 until the pressing ring 32 presses the sleeve 41 inserted with the pipe clamp valve hose 42 inside, and the pipe clamp valve hose 42 is prevented from translating,

after the opening of the pinch valve hose 42 is reduced by the clamp plate 23, air in the gap formed between the sleeve 41 and the pinch valve hose 42 is pumped out by the air pump 221 inside the screw 21, so that the air pressure in the gap is reduced, the sleeve 41 and the pinch valve hose 42 are tightly attached to each other, and the pinch valve hose 42 is compressed by the retraction of the sleeve 41 due to the inner cavity vacuum.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.