1. A filtering type pressure reducing valve with a buffering device comprises a second valve seat (17), wherein one end of the second valve seat (17) is provided with a water outlet (12), the other end of the second valve seat is provided with a second water inlet (15), a valve seat assembly is installed on the second valve seat (17), and a channel (21) is arranged in the middle of the second valve seat (17);

the method is characterized in that: a first valve seat (3) is installed at one end of the second valve seat (17), a first water inlet (2) is formed in the first valve seat (3), a buffer device is installed in the second valve seat (17), and the buffer device is used for reducing the pressure of liquid after the liquid enters the second valve seat (17) through the first valve seat (3);

buffer includes collar (20), buffer board (18) and gasbag bracing piece (19), collar (20) are used for installing buffer board (18), the one end of buffer board (18) rotates on collar (20), gasbag bracing piece (19) are used for buffer board (18) to rotate the back and make buffer board (18) reset.

2. The filtering pressure-reducing valve equipped with a shock-absorbing device according to claim 1, wherein: the valve seat assembly comprises a pressure adjusting device (10) arranged at the top of a second valve seat (17), a valve cover (6) is arranged at the bottom of the pressure adjusting device (10), a valve rod (7) is arranged at the bottom of the pressure adjusting device (10), a valve core (22) is arranged at one end of the valve rod (7), and an insertion hole (28) is formed in one side of the valve core (22);

slot (23) have been seted up to one side that the inside of second disk seat (17) is close to passageway (21), install stabilising arrangement (24) on valve rod (7), stabilising arrangement (24) are including fixing ring (241) on valve rod (7), and connecting rod (245) are installed to one side of ring (241), round bar (242) are installed to the one end of connecting rod (245), and mounting panel (243) are installed to the one end of round bar (242), slide bar (244) are installed to the bottom of mounting panel (243), bolt (246) are installed to the inner wall of mounting panel (243).

3. The filtering pressure-reducing valve equipped with a shock-absorbing device according to claim 2, wherein: a disc (26) is mounted on the valve rod (7), a bag (25) is mounted at the top of the disc (26), a mounting hole (27) is formed in the middle of the disc (26), and a guide pipe (261) is mounted at the bottom of the disc (26).

4. A filter-type pressure reducing valve equipped with a shock-absorbing device according to claim 3, wherein: a pressing block (72) is installed on the valve rod (7), and a sealing sheet (71) is installed above the pressing block (72).

5. The filter-type pressure reducing valve equipped with a shock-absorbing device according to claim 4, wherein: the pressure regulating device is characterized in that a spring (8) is arranged inside the pressure regulating device (10), a pressure rod (9) is arranged at the top of the spring (8), and one end of the spring (8) is connected with the valve rod (7).

6. The filtering pressure-reducing valve equipped with a shock-absorbing device according to claim 5, wherein: and a first pressure gauge (5) is installed at one end of the second valve seat (17), and a second pressure gauge (11) is installed at the other end of the second valve seat.

7. The filtering pressure-reducing valve equipped with a shock-absorbing device according to claim 6, wherein: the internally mounted of first water inlet (2) has filter core (1), and the bottom of filter core (1) installs chock (16), the one end of chock (16) extends to the outside of first disk seat (3).

8. The filtering pressure-reducing valve equipped with a shock-absorbing device according to claim 7, wherein: the inside bottom mid-mounting of second disk seat (17) has sealed piece (14), and scram valve rod (13) are installed to the bottom of sealed piece (14).

9. The filtering pressure-reducing valve equipped with a shock-absorbing device according to claim 8, wherein: gasbag bracing piece (19) are the cylinder structure, and the magnetic path is installed to the bottom of gasbag bracing piece (19), install on first disk seat (3) stripper bar (4), the one end of stripper bar (4) extends to the inside of first disk seat (3), and the tip of stripper bar (4) is located the top of buffer board (18).

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by adjusting and automatically keeps the outlet pressure stable by the energy of a medium, the pressure reducing valve is used for a pipeline for conveying liquid, the existing pressure reducing valve still has defects in use, the pressure reducing valve is internally provided with no buffer structure, the liquid is quickly filled into a valve seat, the valve seat strongly vibrates, the noise is high, in addition, the liquid continuously impacts a valve core under the opening state of the valve core, the stability of the bottom of the valve core is poor, and the service life of the valve core is influenced due to the shaking of the valve core.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a filtering pressure reducing valve with a buffering device, so as to effectively solve the problems that the pressure reducing valve proposed in the above background art has no buffering structure inside and the valve element is easy to shake due to liquid impact when the valve element is in an open state.

In order to achieve the purpose, the invention provides the following technical scheme: a filtering type pressure reducing valve with a buffer device comprises a second valve seat, wherein one end of the second valve seat is provided with a water outlet, the other end of the second valve seat is provided with a second water inlet, a valve seat assembly is mounted on the second valve seat, and a channel is arranged in the middle of the second valve seat;

a first valve seat is installed at one end of the second valve seat, a first water inlet is formed in the first valve seat, a buffer device is installed in the second valve seat, and the buffer device is used for reducing the pressure of liquid after the liquid enters the second valve seat through the first valve seat;

the buffer device comprises a mounting ring, a buffer plate and an air bag supporting rod, wherein the mounting ring is used for mounting the buffer plate, one end of the buffer plate rotates on the mounting ring, and the air bag supporting rod is used for enabling the buffer plate to reset after the buffer plate rotates.

Preferably, the valve seat assembly comprises a pressure adjusting device arranged at the top of the second valve seat, a valve cover is arranged at the bottom of the pressure adjusting device, a valve rod is arranged at the bottom of the pressure adjusting device, a valve core is arranged at one end of the valve rod, and an insertion hole is formed in one side of the valve core;

the slot has been seted up to one side that the inside of second disk seat is close to the passageway, install stabilising arrangement on the valve rod, stabilising arrangement is including fixing the ring on the valve rod, and one side of ring installs the connecting rod, the round bar is installed to the one end of connecting rod, and the one end of round bar installs the mounting panel, the slide bar is installed to the bottom of mounting panel, the bolt is installed to the inner wall of mounting panel.

Preferably, a disc is installed on the valve rod, a bag is installed at the top of the disc, an installation hole is formed in the middle of the disc, and a guide pipe is installed at the bottom of the disc.

Preferably, a pressing block is installed on the valve rod, and a sealing sheet is installed above the pressing block.

Preferably, a spring is installed inside the pressure adjusting device, a pressure rod is installed at the top of the spring, and one end of the spring is connected with the valve rod.

Preferably, a first pressure gauge is installed at one end of the second valve seat, and a second pressure gauge is installed at the other end of the second valve seat.

Preferably, the filter core is installed to the internally mounted of first water inlet, and the chock is installed to the bottom of filter core, the one end of chock extends to the outside of first disk seat.

Preferably, the middle part of the bottom inside the second valve seat is provided with a sealing block, and the bottom of the sealing block is provided with an emergency stop valve rod.

Preferably, the gasbag bracing piece is the cylinder structure, and the magnetic path is installed to the bottom of gasbag bracing piece, install the stripper bar on the first disk seat, the one end of stripper bar extends to the inside of first disk seat, and the tip of stripper bar is located the top of buffer board.

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

(1) according to the invention, the second valve seat is arranged on the first valve seat, the buffer device is arranged in the second valve seat, and the buffer device is used for buffering and decelerating the liquid entering the first valve seat in advance, so that the pressure of the liquid entering the first valve seat is reduced, the valve seat is protected, the noise of the valve seat is reduced, and the working environment is optimized.

(2) According to the invention, the stabilizing device is arranged on the valve core, and after the valve core moves upwards, the stabilizing device assists in supporting the valve core, so that the shaking of the valve core is reduced, the stability of the valve core and the valve rod is improved, the abrasion of a sealing element arranged on the valve rod is reduced, and the service life of the pressure reducing valve is prolonged.

(3) According to the invention, the valve rod is provided with the bag for collecting liquid, the liquid cannot impact the sealing sheet upwards when the valve core is opened, the sealing sheet is protected, the sealing performance between the sealing sheet and the valve cover is ensured, the sealing performance between the valve cover and the valve seat is improved, the probability of liquid leakage is reduced, and the failure rate of the pressure reducing valve is reduced.

Drawings

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

FIG. 2 is a schematic view of the valve stem of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 1;

FIG. 5 is a schematic view of the structure of the stabilizing device of the present invention;

FIG. 6 is a top view of a stabilization device of the present invention;

FIG. 7 is an external view of a bladder and disk of the present invention;

FIG. 8 is a bottom view of the puck of the present invention;

FIG. 9 is a side view of the valve cartridge of the present invention;

in the figure: 1-a filter element; 2-a first water inlet; 3-a first valve seat; 4-extruding a rod; 5-a first pressure gauge; 6-valve cover; 7-a valve stem; 71-sealing piece; 72-briquetting; 8-a spring; 9-a pressure bar; 10-a pressure regulating device; 11-a second pressure gauge; 12-a water outlet; 13-emergency stop valve stem; 14-a sealing block; 15-a second water inlet; 16-a plug; 17-a second valve seat; 18-a buffer plate; 19-balloon struts; 20-a mounting ring; 21-channel; 22-a valve core; 23-a slot; 24-a stabilizing device; 241-a circular ring; 242-round bar; 243-mounting plate; 244-a slide bar; 245-a connecting rod; 246-plug pin; 25-pouch; 26-a disc; 261-a catheter; 27-mounting holes; 28-jack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides the following technical solutions: a filtering type pressure reducing valve with a buffer device comprises a second valve seat 17, wherein one end of the second valve seat 17 is provided with a water outlet 12, the other end of the second valve seat 17 is provided with a second water inlet 15, a valve seat assembly is arranged on the second valve seat 17, and the middle part of the second valve seat 17 is provided with a channel 21;

a first valve seat 3 is installed at one end of the second valve seat 17, a first water inlet 2 is formed in the first valve seat 3, a buffer device is installed in the second valve seat 17, and the buffer device is used for reducing the pressure of liquid after the liquid enters the second valve seat 17 through the first valve seat 3;

the buffer device comprises a mounting ring 20, a buffer plate 18 and an air bag supporting rod 19, wherein the mounting ring 20 is used for mounting the buffer plate 18, one end of the buffer plate 18 rotates on the mounting ring 20, and the air bag supporting rod 19 is used for resetting the buffer plate 18 after the buffer plate 18 rotates;

in this embodiment, it is concrete, after liquid got into first water inlet 2, liquid at first passes through filter core 1, then through collar 20, then strike buffer board 18, take place to rotate after the buffer board 18 atress, the one end of buffer board 18 rotates round collar 20's bottom inner wall, the tip of buffer board 18 is connected through stainless steel's pivot with the bottom inner wall of collar 20, extrude gasbag bracing piece 19 when buffer board 18 rotates, 19 atresss of gasbag bracing piece and crooked, the end connection magnetic path of gasbag bracing piece 19, the magnetic path adsorbs on the inner wall of first disk seat 3, gasbag bracing piece 19 is fixed on the inner wall of first disk seat 3 simultaneously.

Preferably, the valve seat assembly comprises a pressure adjusting device 10 installed at the top of the second valve seat 17, a valve cover 6 is installed at the bottom of the pressure adjusting device 10, a valve rod 7 is installed at the bottom of the pressure adjusting device 10, a valve core 22 is installed at one end of the valve rod 7, and an insertion hole 28 is formed in one side of the valve core 22; specifically, after the liquid passes through the second water inlet 15, the liquid impacts the valve core 22, the valve core 22 moves upwards, the valve rod 7 is pushed when the valve core 22 moves upwards, the valve rod 7 drives the pressing block 72 and the sealing sheet 71 to move upwards, the edge of the sealing sheet 71 is clamped between the bottom of the valve cover 6 and the top of the second valve seat 17, and when the sealing sheet 71 moves upwards, the edge does not move, so that the liquid in the second valve seat 17 cannot overflow the second valve seat 17.

The second valve seat 17 has a slot 23 formed therein at a side thereof adjacent to the passage 21, the stem 7 is provided with a stabilizer 24, the stabilizer 24 includes a ring 241 fixed to the stem 7, and one side of the ring 241 is provided with a connecting rod 245, one end of the connecting rod 245 is provided with a round rod 242, and one end of the round rod 242 is provided with a mounting plate 243, the bottom of the mounting plate 243 is provided with a sliding rod 244, the inner wall of the mounting plate 243 is provided with a bolt 246, specifically, the round ring 241 is fixedly connected to the valve rod 7 through a bolt, the bolt 246 on the mounting plate 243 is inserted into the insertion hole 28 on the side surface of the valve core 22, the mounting plate 243 can be stably mounted on the side surface of the valve core 22, the sliding rod 244 is inserted into the slot 23, the sliding rod 244 can slide in the slot 23, when the valve core 22 is pushed by liquid, the valve core 22 moves upwards, the valve core 22 drives the stabilizing device 24 to move, at the same time, the sliding rod 244 slides in the slot 23, and the stabilizing device 24 and the valve core 22 move upwards smoothly.

Preferably, a disc 26 is mounted on the valve rod 7, a bladder 25 is mounted on the top of the disc 26, a mounting hole 27 is formed in the middle of the disc 26, and a guide pipe 261 is mounted at the bottom of the disc 26;

in this embodiment, specifically, after the valve core 22 is pushed upward by the liquid and opened, part of the liquid enters the bladder 25 through the conduit 261, the bladder 25 is in a swelling state after being filled with the liquid, and the bladder 25 blocks the liquid from contacting the pressing block 72, and meanwhile, the liquid does not contact the sealing sheet 71.

Preferably, the valve stem 7 is provided with a pressing block 72, and a sealing sheet 71 is arranged above the pressing block 72.

Preferably, the spring 8 is installed inside the pressure adjusting device 10, the pressing rod 9 is installed at the top of the spring 8, one end of the spring 8 is connected with the valve rod 7, specifically, the pressing rod 9 is a threaded rod, the pressing rod 9 rotates clockwise to push the spring 8 downwards, the spring 8 extrudes the valve rod 7 downwards, at the moment, the valve core 22 presses the channel 21 more tightly, and the valve core 22 can be opened by pushing upwards the valve core 22 by impacting with a larger liquid pressure.

Preferably, the second valve seat 17 is provided with a first pressure gauge 5 at one end and a second pressure gauge 11 at the other end.

Preferably, the filter element 1 is installed inside the first water inlet 2, and the plug 16 is installed at the bottom of the filter element 1, and one end of the plug 16 extends to the outside of the first valve seat 3.

Preferably, the inner bottom of the second valve seat 17 is centrally provided with a sealing block 14, and the bottom of the sealing block 14 is provided with an emergency stop valve rod 13.

Preferably, the airbag support rod 19 is of a cylindrical structure, the magnetic block is mounted at the bottom of the airbag support rod 19, the extrusion rod 4 is mounted on the first valve seat 3, one end of the extrusion rod 4 extends into the first valve seat 3, and the end of the extrusion rod 4 is located above the buffer plate 18.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.