CN219549707U - Novel gas self-closing valve - Google Patents

Abstract

The utility model provides a novel gas self-closing valve, and belongs to the technical field of valves. The gas self-closing valve solves the problems that an existing gas self-closing valve membrane is inconvenient to install, the whole assembly is troublesome and the installation efficiency is low. The utility model provides a novel gas self-closing valve, including the valve body that both ends have inlet port and outlet port respectively, valve body top has set gradually the valve gap from bottom to top, carry handle and blanking cover, be provided with the diaphragm between valve gap and the valve body, the outer lane of diaphragm passes through valve gap and valve body pressfitting location, the last top surface and the lower bottom surface of its inner circle all have outside bellied back-off portion, be equipped with top and blanking cover matched with iron core in the valve gap, the diaphragm inner circle bottom surface compresses tightly to the iron core through corresponding back-off portion, the upper top surface is provided with the diaphragm seat on the diaphragm, the diaphragm seat compresses tightly to the diaphragm upper top surface through corresponding back-off portion, the diaphragm seat top still pressfitting has the folder, be provided with the case subassembly in the valve body. The utility model has the advantages of convenient membrane installation, simple integral assembly and improved installation efficiency.

Description

Novel gas self-closing valve

Technical Field

The utility model belongs to the technical field of valves, and relates to a self-closing valve, in particular to a novel gas self-closing valve.

Background

The self-closing valve for pipeline gas is installed on the pipeline of low-pressure gas system, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it can be automatically closed and opened manually without using electricity or other external power. The diaphragm in the existing gas self-closing valve needs to be locked and fixed through a nut, is relatively complicated in assembly, and particularly needs a nut screwing process in the batch assembly production process, so that the installation efficiency is low.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a novel gas self-closing valve which is simple to assemble, high in installation efficiency and good in use effect.

The aim of the utility model can be achieved by the following technical scheme: the novel gas self-closing valve comprises a valve body with an air inlet port and an air outlet port at two ends, and is characterized in that a valve cover, a lifting handle and a blocking cover are sequentially arranged at the top of the valve body from bottom to top, a membrane is arranged between the valve cover and the valve body, an outer ring of the membrane is positioned through press fit of the valve cover and the valve body, an inverted part protruding outwards is arranged on the upper top surface and the lower bottom surface of an inner ring of the membrane, an iron core with the top matched with the blocking cover is arranged in the valve cover, the lower bottom surface of the inner ring of the membrane is pressed onto the iron core through the corresponding inverted part, a membrane seat is arranged on the upper top surface of the membrane through the corresponding inverted part, a clamping piece is also pressed at the top of the membrane seat, and a valve core component is arranged in the valve body;

the valve core assembly consists of a valve seat, a valve core shaft movably inserted in the valve seat, a transmission assembly arranged between the valve seat and the iron core, and a deflector rod with one end connected with the transmission assembly in a matched mode, wherein the other end of the transmission assembly is used for pushing the valve core shaft to transversely move, a notch is formed in the valve core shaft, the deflector rod is arranged at the notch, the deflector rod arranged at the notch is provided with a transmission pushing shaft matched with the deflector rod, two ends of the transmission pushing shaft extend outwards and penetrate into the valve seat, guide grooves for penetrating corresponding ends of the transmission pushing shaft are symmetrically formed in the valve seat, the transmission assembly comprises a fixed cover connected to the top of the valve seat, a linkage seat movably connected with one end of the deflector rod in the valve seat, and a magnet seat arranged at the top of the fixed cover, and magnets are arranged in the magnet seat.

In the novel gas self-closing valve, a valve port for the outer end of the valve core shaft to pass through is arranged in the valve body.

In the novel gas self-closing valve, the outer end of the valve core shaft penetrating out of the valve port is connected with a sealing plug piece for plugging the valve port.

In the novel gas self-closing valve, the ball valve and the butterfly handle for controlling the ball valve to work are arranged at the position, close to the gas outlet port, on the valve body.

In the novel gas self-closing valve, the clamp is arranged outside the valve cover.

In the novel gas self-closing valve, the non-return core is arranged in the air inlet port.

In the novel gas self-closing valve, the magnet is arranged in the linkage seat through the screw.

In the novel gas self-closing valve, the first connecting lugs which extend outwards are arranged on two sides of the fixed cover, the second connecting lugs which extend outwards are arranged on two ends of the top edge of the valve seat, the inner edge plate which extends outwards is arranged in the valve body, counter bores are formed in the inner edge plate, screw hole structures are formed in the first connecting lugs and the second connecting lugs, and the two screw hole structures are connected with the corresponding counter bores through bolts.

Compared with the prior art, the novel gas self-closing valve has the advantages of convenient membrane installation, simple integral assembly and improvement of installation efficiency.

Drawings

Fig. 1 is a schematic perspective view of the novel gas self-closing valve.

Fig. 2 is a schematic sectional view of the novel gas self-closing valve.

Fig. 3 is a schematic perspective view of a valve cartridge assembly.

Fig. 4 is a partial perspective view of the valve cartridge assembly.

Fig. 5 is a schematic view of a partial cross-sectional structure of the novel gas self-closing valve.

In the figure, 1, an air inlet port; 2. an air outlet port; 3. a valve body; 4. a valve cover; 5. lifting a handle; 6. a blanking cover; 7. a membrane; 8. a back-off part; 9. an iron core; 10. a diaphragm seat; 11. a clamping piece; 12. a valve seat; 13. a valve core shaft; 14. a deflector rod; 15. a notch; 16. driving the pushing shaft; 17. a guide groove; 18. a fixed cover; 19. a magnet base; 20. a magnet; 21. a valve port; 22. a sealing member; 23. a ball valve; 24. a butterfly handle; 25. a clamp; 26. a non-return core; 27. a screw; 28. a first connecting lug; 29. a second connecting lug; 30. an inner edge plate; 31. and (5) countersinking.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, this novel gas self-closing valve, including the valve body 3 that both ends have inlet port 1 and outlet port 2 respectively, valve body 3 top has set gradually valve gap 4 from bottom to top, handle 5 and blanking cover 6, be provided with diaphragm 7 between valve gap 4 and the valve body 3, the outer lane of diaphragm 7 passes through valve gap 4 and valve body 3 pressfitting location, the upper top surface and the lower bottom surface of its inner circle all have outwards bellied back-off 8, be equipped with the iron core 9 of top and blanking cover 6 matched with in the valve gap 4, the bottom surface compresses tightly to on the iron core 9 through corresponding back-off 8 under the diaphragm 7, the inner upper top surface of diaphragm 7 is provided with diaphragm seat 10, diaphragm seat 10 compresses tightly to the upper top surface of diaphragm 7 through corresponding back-off 8, during the installation, put into diaphragm 7 back-assembled diaphragm seat 10, and make diaphragm seat 10 compress tightly down through corresponding back-off 8, 7 accomplish the assembly through the mode of upper and lower block fixed, it has the advantage of higher efficiency and simple to compare traditional nut is fixed, diaphragm seat 10 top still has clamp 11, valve core assembly is provided with in the valve body assembly.

The valve core assembly consists of a valve seat 12, a valve core shaft 13 movably inserted in the valve seat 12, a transmission assembly arranged between the valve seat 12 and the iron core 9, and a deflector rod 14 with one end matched with the transmission assembly and the other end used for pushing the valve core shaft 13 to move transversely, wherein a notch 15 is formed in the valve core shaft 13, the deflector rod 14 is arranged at the notch 15, the deflector rod 14 arranged at the notch 15 is provided with a transmission pushing shaft 16 matched with the deflector rod 14, two ends of the transmission pushing shaft 16 extend outwards and penetrate into the valve seat 12, guide grooves 17 for penetrating corresponding ends of the transmission pushing shaft 16 are symmetrically formed in the valve seat 12, the transmission assembly comprises a fixed cover 18 connected to the top of the valve seat 12, a linkage seat movably connected with one end of the deflector rod 14 in the valve seat 12 and a magnet seat 19 arranged at the top of the fixed cover 18, and a magnet 20 is arranged in the magnet seat 19.

Preferably, the valve body 3 has a valve port 21 therein for the outer end of the valve spindle 13 to pass through.

Preferably, the outer end of the valve core shaft 13 penetrating out of the valve port 21 is connected with a sealing plug 22 for plugging the valve port 21.

The valve body 3 is internally formed into a vertical steering and transverse motion transmission mode through the transmission cooperation of mechanical elements of the deflector rod 14, the valve core shaft 13, the transmission pushing shaft 16 and the linkage seat, the diaphragm 7 works, the linkage seat descends under the action of the iron core 9 and the magnet 20, one end of the deflector rod 14 with the transmission pushing shaft 16 pushes the valve core shaft 13 to move forwards along the guide groove 17 of the valve seat 12, and the sealing piece 22 seals the valve port 21.

Preferably, a ball valve 23 and a butterfly handle 24 for controlling the operation of the ball valve 23 are arranged on the valve body 3 at a position close to the air outlet port 2.

Preferably, the cover 4 is provided with a clip 25 on the outside.

Preferably, the check core 26 is installed in the intake port 1.

Preferably, the magnet 20 is mounted in the linkage seat by a screw 27.

Preferably, the two sides of the fixed cover 18 are provided with a first connecting lug 28 which extends outwards, the two ends of the top edge of the valve seat 12 are also provided with a second connecting lug 29 which extends outwards, an outer extending inner edge plate 30 is arranged in the valve body 3, counter bores 31 are formed in the inner edge plate 30, screw hole structures are formed in the first connecting lug 28 and the second connecting lug 29, the two screw hole structures are connected with the corresponding counter bores 31 through bolts, and the assembly efficiency is improved through the effective and simple assembly structure without additionally installing other parts or realizing through other complex structures; in addition, the opening of the counter bore 31 has better positioning effect.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the inlet port 1, the outlet port 2, the valve body 3, the valve cover 4, the lift handle 5, the plug cover 6, the diaphragm 7, the back-off portion 8, the core 9, the diaphragm seat 10, the clip 11, the valve seat 12, the spool shaft 13, the shift lever 14, the notch 15, the transmission push shaft 16, the guide groove 17, the fixed cover 18, the magnet seat 19, the magnet 20, the valve port 21, the sealing piece 22, the ball valve 23, the butterfly handle 24, the clip 25, the check core 26, the screw 27, the first connecting lug 28, the second connecting lug 29, the inner edge plate 30, the counter bore 31, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (8)

1. The utility model provides a novel gas self-closing valve, includes valve body (3) that both ends have inlet port (1) and outlet port (2) respectively, its characterized in that, valve body (3) top by supreme valve gap (4), lifting handle (5) and blanking cover (6) of having set gradually down, valve gap (4) and valve body (3) between be provided with diaphragm (7), the outer lane of diaphragm (7) is through valve gap (4) and valve body (3) pressfitting location, the upper top surface and the lower bottom surface of its inner circle all have outwards bellied back-off portion (8), valve gap (4) in be equipped with top and blanking cover (6) matched with iron core (9), diaphragm (7) inner circle lower bottom surface compress tightly to iron core (9) through corresponding back-off portion (8), diaphragm (7) inner upper top surface be provided with diaphragm seat (10) through corresponding back-off portion (8) compress tightly to diaphragm (7) upper top surface, seat (10) top still pressfitting have diaphragm (11), diaphragm (3) are provided with the valve core assembly;

the valve core assembly comprises a valve seat (12), a valve core shaft (13) movably inserted in the valve seat (12), a transmission assembly arranged between the valve seat (12) and an iron core (9) and a deflector rod (14) with one end connected with the transmission assembly and the other end used for pushing the valve core shaft (13) to move transversely, a notch (15) is formed in the valve core shaft (13), the deflector rod (14) is mounted at the notch (15), the deflector rod (14) mounted at the notch (15) is provided with a transmission pushing shaft (16) matched with the deflector rod, two ends of the transmission pushing shaft (16) extend outwards and penetrate into the valve seat (12), guide grooves (17) for penetrating corresponding ends of the transmission pushing shaft (16) are symmetrically formed in the valve seat (12), the transmission assembly comprises a fixed cover (18) connected to the top of the valve seat (12), a linkage seat movably connected with one end of the deflector rod (14) and a magnet seat (19) arranged at the top of the fixed cover (18), and the magnet seat (19) is mounted in the magnet seat (20).

2. The novel gas self-closing valve according to claim 1, wherein the valve body (3) is internally provided with a valve port (21) for the outer end of the valve core shaft (13) to pass through.

3. The novel gas self-closing valve according to claim 2, wherein a sealing plug (22) for plugging the valve port (21) is connected to the outer end of a valve core shaft (13) penetrating out of the valve port (21).

4. The novel gas self-closing valve according to claim 1, wherein the valve body (3) is provided with a ball valve (23) and a butterfly handle (24) for controlling the ball valve (23) to work at a position close to the gas outlet port (2).

5. The novel gas self-closing valve according to claim 1, wherein a clamp (25) is arranged outside the valve cover (4).

6. The novel gas self-closing valve according to claim 1, wherein a non-return core (26) is arranged in the gas inlet port (1).

7. The novel gas self-closing valve according to claim 1, wherein the magnet (20) is mounted in the linkage seat through a screw (27).

8. The novel gas self-closing valve according to claim 1, wherein the first connecting lug (28) extending outwards is arranged on two sides of the fixed cover (18), the second connecting lug (29) extending outwards is arranged on two ends of the top edge of the valve seat (12), the inner edge plate (30) extending outwards is arranged inside the valve body (3), counter bores (31) are formed in the inner edge plate (30), screw hole structures are formed in the first connecting lug (28) and the second connecting lug (29), and the two screw hole structures are connected with the corresponding counter bores (31) through bolts.