CN215487660U

CN215487660U - Quick-closing gas proportional valve

Info

Publication number: CN215487660U
Application number: CN202120920197.6U
Authority: CN
Inventors: 邵超杰
Original assignee: Ningbo Xinbao Electric Co ltd
Current assignee: Ningbo Xinbao Electric Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-01-11
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to a quick-closing gas proportional valve which comprises a pressure stabilizing section and a pressure dividing section, wherein the pressure stabilizing section is communicated with the pressure dividing section, one side of the pressure dividing section is communicated with a gas outlet end, an annular surrounding edge with one open end is arranged in the pressure dividing section, the opening of the annular surrounding edge faces the gas outlet end, the annular surrounding edge is communicated with the pressure stabilizing section, a valve core is arranged in the annular surrounding edge, the valve core comprises a rod body and a blocking end positioned at the end part of the rod body, the blocking end is positioned outside the opening of the annular surrounding edge, when the blocking end is positioned at a stopping position, the blocking end closes the opening of the annular surrounding edge, and a spring is abutted between the blocking end and the gas outlet end. When the blocking end moves towards the air outlet end, the spring is compressed to generate elastic potential energy, and when the blocking end is far away from the air outlet end to block the opening of the annular surrounding edge, the elastic potential energy of the spring is released to generate thrust on the blocking end, so that the blocking end can move to the opening of the annular surrounding edge more quickly, and quick closing of fuel gas of the fuel gas proportional valve is achieved.

Description

Quick-closing gas proportional valve

Technical Field

The utility model relates to the technical field of gas equipment, in particular to a quickly-closed gas proportional valve.

Background

At present, the gas proportional valve is an important component in a gas water heater, a wall-mounted furnace or a gas stove, and the on-off of gas and the supply speed of the gas can be controlled through the gas proportional valve, so that the use safety of the gas water heater, the wall-mounted furnace or the gas stove is improved.

In the prior art, the utility model patent with publication number CN105626874A discloses a gas proportional valve, which comprises: the valve comprises a valve body, a valve core assembly and a driving reset piece, wherein a first valve cavity, a second valve cavity and a valve port are formed in the valve body, the lower end of the valve port is communicated with the first valve cavity, the upper end of the valve port is communicated with the second valve cavity, the first valve cavity is connected with an air inlet, and the second valve cavity is connected with an air outlet; the valve core assembly is movably arranged on the valve body between the positions of opening and closing the valve port along the up-down direction, the valve core assembly comprises a valve core and a sealing element, the sealing element is arranged on the valve core, and the sealing element is propped against the lower surface of the valve port when the valve core assembly closes the valve port; the drive resets and links to each other with valve body and case subassembly respectively, and the drive resets and is used for driving the valve core and removes in order to open or seal the valve port.

The above prior art solutions have the following drawbacks: the valve core is closed and only driven by the driving reset piece, the driving reset piece comprises an electromagnet and a permanent magnet, the permanent magnet is arranged in the valve core, when the electromagnet is powered off, the magnetic property of the electromagnet is gradually reduced to disappear, and the valve core is reset slowly in the process.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a quick-closing gas proportional valve which has the advantage of quickly closing gas.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a quick closed gas proportional valve, includes steady voltage section and partial pressure section, steady voltage section and partial pressure section intercommunication, partial pressure section one side intercommunication has the end of giving vent to anger, be equipped with one end open-ended annular surrounding edge in the partial pressure section, the opening orientation of annular surrounding edge is given vent to anger the end, the annular surrounding edge with steady voltage section intercommunication, be equipped with the case in the annular surrounding edge, the case includes the body of rod and is located the jam end of body of rod tip, it is located outside the opening of annular surrounding edge to block up the end, works as when the jam end is located the shutoff position, blocks up the end and seals the opening of annular surrounding edge, it has the spring to block up the butt between the end and the end of giving vent to anger.

Through adopting above-mentioned technical scheme, when blockking up the end and moving towards the end of giving vent to anger, the spring compression produces elastic potential energy, when blockking up the end and keeping away from the end of giving vent to anger to the opening of blockking up annular surrounding edge, the elastic potential energy release of spring to the production thrust of blockking up the end, makes to block up the end and move the opening to annular surrounding edge more fast.

The present invention in a preferred example may be further configured to: be equipped with butt platform and butt post in the end of giving vent to anger, be equipped with first arc flange on the butt platform, be equipped with second arc flange on the butt post, first arc flange and second arc flange are located same circular arc, the one end butt that the spring is close to the end of giving vent to anger is on butt platform and butt post, the one end lateral wall that the spring is close to the end of giving vent to anger pastes with first arc flange inner wall and second arc flange inner wall mutually.

Through adopting above-mentioned technical scheme, the butt platform in the end of giving vent to anger carries out the butt with the butt post to the one end of spring, because the spring other end butt is blockking up the end, has consequently shortened the stroke that blocks up the end, makes to block up the time that the end removed to blockking up annular surrounding edge opening part shorter. And carry out circumference spacing to spring one end, prevent that the spring from removing.

The present invention in a preferred example may be further configured to: the butt post has two, two the butt post interval sets up the gap that forms gas and pass through, the butt post sets up the gap that forms gas and pass through with the butt platform interval.

Through adopting above-mentioned technical scheme, the gap makes the gas that gets into between butt platform and the butt post flow more easily, reduces the resistance that gas flows in giving vent to anger the end.

The present invention in a preferred example may be further configured to: and a first annular groove coaxial with the vent hole of the gas outlet end is arranged on the surface of the gas outlet end, which is attached to the pressure dividing section.

Through adopting above-mentioned technical scheme, first ring channel is used for installing the sealing washer, carries on spacingly to the sealing washer.

The present invention in a preferred example may be further configured to: the surface of the pressure division section, which is attached to the air outlet end, is provided with a second annular groove coaxial with the opening of the pressure division section, and the bottom surface of the second annular groove is the same as that of the first annular groove.

Through adopting above-mentioned technical scheme, the second annular groove is used for installing the sealing washer, carries on spacingly to the sealing washer.

The present invention in a preferred example may be further configured to: and a sealing ring is arranged in an annular cavity formed by aligning the first annular groove and the second annular groove.

Through adopting above-mentioned technical scheme, the sealing washer seals the end of giving vent to anger and the connection face of partial pressure section, improves the gas tightness of junction.

The present invention in a preferred example may be further configured to: the side wall of the gas outlet end is provided with a gas outlet detection tube communicated with the gas outlet end, the end part of the gas outlet detection tube is provided with a gas seal ring, and a bolt penetrates through the gas seal ring to be in threaded connection with the end part of the gas outlet detection tube.

By adopting the technical scheme, the bolt is unscrewed, the airtight ring is taken down, and the air tightness of the valve core when the annular surrounding edge is closed and opened can be detected through the air outlet pipe detection pipe.

In summary, the utility model includes at least one of the following beneficial technical effects: when the blocking end moves towards the air outlet end, the spring is compressed to generate elastic potential energy, and when the blocking end is far away from the air outlet end to block the opening of the annular surrounding edge, the elastic potential energy of the spring is released to generate thrust on the blocking end, so that the blocking end can move to the opening of the annular surrounding edge more quickly, and quick closing of fuel gas of the fuel gas proportional valve is achieved.

Drawings

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

FIG. 2 is a partial sectional view of the present embodiment;

FIG. 3 is a schematic view of the structure of the gas outlet end;

FIG. 4 is a schematic structural diagram of a voltage stabilizing section and a voltage dividing section;

fig. 5 is a schematic view of the valve cartridge.

In the figure, 1, a voltage stabilization section; 2. a voltage division section; 3. an air outlet end; 4. an annular surrounding edge; 5. a rod body; 6. a blocked end; 7. a spring; 8. abutting against the platform; 9. a butting post; 10. a first arc-shaped flange; 11. a second arc-shaped flange; 12. a limiting groove; 13. a first annular groove; 14. a second annular groove; 15. a seal ring; 16. an air outlet detection tube; 17. a gas tight ring; 18. a bolt; 19. a pressure dividing valve; 20. and a stop valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the quick-closing gas proportional valve disclosed by the utility model comprises a pressure stabilizing section 1 and a pressure dividing section 2, wherein the pressure stabilizing section 1 and the pressure dividing section 2 are hollow tubular structures, the pressure stabilizing section 1 is communicated with the pressure dividing section 2, one end of the pressure dividing section 2 is detachably connected with a gas outlet end 3 through a bolt 18, and the gas outlet end 3 is communicated with the pressure dividing section 2. The air outlet end 3 is a hollow shell, two air outlets are formed in the air outlet end 3, and the air outlets are opened and closed through a stop valve 20.

Referring to fig. 2, an annular surrounding edge 4 is connected with an inner wall of the partial pressure section 2 in the partial pressure section 2, the cross section of the annular surrounding edge 4 is in a ring shape, one axial end of the annular surrounding edge 4 is a circular opening, and the annular surrounding edge 4 is communicated with the pressure stabilizing section 1. The annular surrounding edge 4 is internally and axially provided with a valve core, and the valve core comprises a rod body 5 and a blocking end 6 which is concentrically arranged at one end of the rod body 5. The valve core can move axially in the annular surrounding edge 4 under the control of the pressure distributing valve 19, so that the blocking end 6 can close or open the opening of the annular surrounding edge 4. When the blocking end 6 is in a position closing the opening of the annular skirt 4, it is in a stop position. A spring 7 is arranged in a cavity formed by the pressure dividing section 2 and the air outlet end 3, one end of the spring 7 is connected with the blocking end 6 in an abutting mode, and the other end of the spring is connected with the air outlet end 3 in an abutting mode. With reference to fig. 3, be provided with butt platform 8 and butt post 9 in the end of giving vent to anger 3, be equipped with first arc flange 10 on the butt platform 8, be equipped with second arc flange 11 on the butt post 9, first arc flange 10 and second arc flange 11 are located same circular arc, the one end butt that spring 7 is close to end of giving vent to anger 3 is on butt platform 8 and butt post 9, the one end lateral wall that spring 7 is close to end of giving vent to anger 3 pastes with first arc flange 10 inner wall and second arc flange 11 inner wall. In this embodiment, the abutment platform 8 abuts one half of one end of the spring 7. The butt joint post 9 has two, between two butt joint posts 9 to and the interval forms the gap between butt joint post 9 and the butt platform 8, can follow the gap and flow when making the air current pass through the space that butt joint post 9 and butt platform enclose, in order to reduce the resistance that the gas flows in giving vent to anger end 3.

Referring to fig. 2, one side of the air outlet end 3 is communicated with an air outlet detection tube 16, and the end of the air outlet detection tube 16 is blocked by a coaxial threaded connecting bolt 18. In order to improve the airtightness of the bolt 18 against the end of the outgassing detection tube 16, the bolt 18 is threaded into the outgassing detection tube 16 after passing through the airtight ring 17.

Referring to fig. 2, a sealing ring 15 is arranged between the connection surface of the gas outlet end 3 and the partial pressure section 2 to improve the air tightness of the connection.

Referring to fig. 3 and 4, in order to provide a space for installing the sealing ring 15, a first annular groove 13 with a coaxial opening is formed in a surface of the air outlet end 3, which is attached to the pressure dividing section 2, a second annular groove 14 with a same bottom surface as the first annular groove 13 is formed in a surface of the pressure dividing section 2, which is attached to the air outlet end 3, the second annular groove 14 is provided with a coaxial opening of the pressure dividing section 2, and the sealing ring 15 is installed in an annular cavity formed by the first annular groove 13 and the second annular groove 14. In order to facilitate the stable mounting of the sealing ring 15 in one of the grooves during mounting, in the present embodiment, the depth of the second annular groove 14 is greater than the depth of the first annular groove 13, and the sealing ring 15 may be mounted in the second annular groove 14 first during mounting. In another embodiment, the depth of the first annular groove 13 may be greater than the depth of the second annular groove 14, and the sealing ring 15 is installed in the second annular groove 14 first.

Referring to fig. 5, a limiting groove 12 is coaxially formed in one surface of the blocking end 6 close to the air outlet end 3, and one end of the spring 7, which abuts against the blocking end 6, is limited in the limiting groove 12.

The implementation principle of the embodiment is as follows: when the blocking end 6 moves towards the gas outlet end 3, the spring 7 is compressed to generate elastic potential energy, when the blocking end 6 is far away from the gas outlet end 3 to block the opening of the annular surrounding edge 4, the elastic potential energy of the spring 7 is released to generate thrust on the blocking end 6, so that the blocking end 6 moves to the opening of the annular surrounding edge 4 more quickly, and quick closing of gas of the gas proportional valve is achieved.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a gas proportional valve who closes fast, includes surge section (1) and partial pressure section (2), surge section (1) and partial pressure section (2) intercommunication, partial pressure section (2) one side intercommunication has the end of giving vent to anger (3), its characterized in that: be equipped with one end open-ended annular surrounding edge (4) in partial pressure section (2), the opening orientation of annular surrounding edge (4) is given vent to anger end (3), annular surrounding edge (4) with steady voltage section (1) intercommunication, be equipped with the case in annular surrounding edge (4), the case includes the body of rod (5) and is located the jam end (6) of the body of rod (5) tip, jam end (6) are located outside the opening of annular surrounding edge (4), work as when jam end (6) are located the cut-off position, jam end (6) seal the opening of annular surrounding edge (4), it has spring (7) to block up end (6) and give vent to anger the butt between the end (3).

2. The fast closing gas proportioning valve of claim 1 wherein: be equipped with butt platform (8) and butt post (9) in giving vent to anger end (3), be equipped with first arc flange (10) on butt platform (8), be equipped with second arc flange (11) on butt post (9), first arc flange (10) and second arc flange (11) are located same circular arc, spring (7) are close to the one end butt of giving vent to anger end (3) on butt platform (8) and butt post (9), spring (7) are close to the one end lateral wall of giving vent to anger end (3) and are pasted mutually with first arc flange (10) inner wall and second arc flange (11) inner wall.

3. The fast closing gas proportioning valve of claim 2 wherein: the butt joint post (9) have two, two butt joint post (9) interval sets up the gap that forms gas and pass through, butt joint post (9) and butt platform (8) interval set up the gap that forms gas and pass through.

4. The fast closing gas proportioning valve of claim 1 wherein: the one side of jam end (6) towards giving vent to anger end (3) is equipped with spacing groove (12), the one end that spring (7) butt stopped up end (6) is spacing in spacing groove (12).

5. The fast closing gas proportioning valve of claim 1 wherein: and a first annular groove (13) coaxial with the hole of the air outlet end (3) is arranged on the surface of the air outlet end (3) attached to the partial pressure section (2).

6. The fast closing gas proportioning valve of claim 5 wherein: the surface of the partial pressure section (2) which is attached to the air outlet end (3) is provided with a second annular groove (14) which is coaxial with the opening of the partial pressure section (2), and the bottom surface of the second annular groove (14) is the same as that of the first annular groove (13).

7. The fast closing gas proportioning valve of claim 6 wherein: and a sealing ring (15) is arranged in an annular cavity formed by aligning the first annular groove (13) and the second annular groove (14).

8. The fast closing gas proportioning valve of claim 7 wherein: the side wall of the air outlet end (3) is provided with an air outlet detection tube (16) communicated with the air outlet end (3), the end part of the air outlet detection tube (16) is provided with an airtight ring (17), and a bolt (18) penetrates through the airtight ring (17) to be in threaded connection with the end part of the air outlet detection tube (16).