CN219300017U

CN219300017U - Water-gas linkage valve and gas appliance

Info

Publication number: CN219300017U
Application number: CN202223575198.5U
Authority: CN
Inventors: 卢宇聪; 刘桦; 刘大清; 张毅; 崔祐常
Original assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Current assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-04
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of gas appliances, and discloses a water-gas linkage valve and a gas appliance. The water-gas linkage valve comprises a water valve, wherein the water valve comprises a valve body, a steady flow valve core, a water pressure diaphragm, a steady flow elastic piece and a water steady flow seat, a water inlet channel and a steady flow cavity are arranged in the valve body, the water steady flow seat is arranged in the steady flow cavity to divide the steady flow cavity into a water inlet side and a water outlet side, a water passing hole is arranged on the water steady flow seat, one end of the steady flow valve core passes through the water passing hole and is fixedly connected with the water pressure diaphragm, the steady flow elastic piece is arranged between the other end of the steady flow valve core and the valve body, and the steady flow valve core is arranged in the steady flow cavity in a sliding manner; the steady flow valve core comprises a core rod and a pressure stabilizing part convexly arranged on the core rod, the pressure stabilizing part is matched with the water flowing hole to form a valve for adjusting the opening between the steady flow valve core and the water steady flow seat, a diversion channel is arranged in the core rod, the water inlet end of the diversion channel is arranged at one end of the core rod, which is close to the steady flow elastic piece, and the water outlet end of the diversion channel is arranged at one end of the core rod, which is far away from the steady flow elastic piece, and both the water inlet end and the water outlet end are communicated with the pressure stabilizing cavity.

Description

Water-gas linkage valve and gas appliance

Technical Field

The utility model relates to the technical field of gas appliances, in particular to a water-gas linkage valve and a gas appliance.

Background

The gas appliances such as the gas water heater and the wall hanging stove all use gas as fuel, provide domestic hot water or heating hot water for users, generally rely on the opening and the gas pressure of the gas valve of aqueous vapor linkage valve control to provide the water of different heat loads for users.

The water-gas linkage valve comprises a water valve, a gas valve and a linkage valve for connecting the water valve and the gas valve, the water valve comprises a valve body, a steady flow valve core, a water pressure diaphragm, a steady flow elastic piece and a water steady flow seat, a water inlet channel, a steady flow cavity and a water outlet channel which are sequentially communicated are arranged in the valve body, the water pressure diaphragm is arranged at the water outlet end of the steady flow cavity, the water steady flow seat is arranged in the steady flow cavity so as to divide the steady flow cavity into a water inlet side and a water outlet side, a water passing hole for communicating the water inlet side and the water outlet side is arranged on the water steady flow seat, one end of the steady flow valve core penetrates through the water passing hole and is fixedly connected with the water pressure diaphragm, the steady flow elastic piece is arranged between the other end of the steady flow valve core and the valve body, and the steady flow valve core slides in the steady flow cavity so as to adjust the opening between the steady flow valve core and the water steady flow seat. The water flow enters the water inlet side of the pressure stabilizing cavity from the air inlet channel, then enters the water outlet side through the space between the flow stabilizing valve core and the water flow stabilizing seat, the flow speed of the water at the water outlet side is increased after passing through the venturi tube, the pressure is reduced, the pressure at the water inlet side is higher than that at the water outlet side, the water flow pushes the flow stabilizing valve core to move towards the water outlet side, the opening between the flow stabilizing valve core and the water flow stabilizing seat is reduced, and the water flow can be kept unchanged theoretically. However, in practice, when the water pressure is small, the steady flow cannot be realized, and the steady flow performance is poor.

Disclosure of Invention

One of the technical problems to be solved by the utility model is to provide the water-gas linkage valve, which can effectively solve the problem that the existing water-gas linkage valve cannot stabilize flow when the water pressure is small, so that the water-gas linkage valve can stabilize flow from the small water pressure, and the stability is good.

The second technical problem to be solved by the utility model is to provide a gas appliance which can solve the problem that the current gas appliance cannot stabilize flow when the water pressure is small and can provide stable water flow from the beginning of the small water pressure.

The first technical problem is solved by the following technical scheme:

the water-gas linkage valve comprises a water valve, the water valve comprises a valve body, a steady flow valve core, a water pressure diaphragm, a steady flow elastic piece and a water steady flow seat, a water inlet channel and a steady flow cavity are arranged in the valve body, the water steady flow seat is arranged in the steady flow cavity to divide the steady flow cavity into a water inlet side and a water outlet side, a water through hole is formed in the water steady flow seat and is communicated with the water inlet side and the water outlet side, one end of the steady flow valve core passes through the water through hole and is fixedly connected with the water pressure diaphragm, the steady flow elastic piece is arranged between the other end of the steady flow valve core and the valve body, and the steady flow valve core is slidably arranged in the steady flow cavity to adjust the opening between the steady flow valve core and the water steady flow seat; wherein,,

the steady flow valve core comprises a core rod and a pressure stabilizing part convexly arranged on the core rod, the pressure stabilizing part is matched with the water flowing hole to form a valve for adjusting the opening between the steady flow valve core and the water steady flow seat, a diversion channel is arranged in the core rod, the water inlet end of the diversion channel is arranged at one end of the core rod, which is close to the steady flow elastic piece, the water outlet end of the diversion channel is arranged at the position, away from the steady flow elastic piece, of the core rod, and the water inlet end and the water outlet end of the diversion channel are both communicated with the pressure stabilizing cavity.

Compared with the background technology, the water-gas linkage valve has the following beneficial effects:

the utility model provides a water-gas linkage valve, wherein a water inlet channel and a pressure stabilizing cavity are communicated with each other, a steady flow valve core is slidably arranged in the pressure stabilizing cavity, a water steady flow seat is arranged in the pressure stabilizing cavity to divide the pressure stabilizing cavity into a water inlet side and a water outlet side, a water passing hole communicated with the water inlet side and the water outlet side is arranged on the water steady flow seat, one end of the steady flow valve core passes through the water passing hole and is connected with a water pressure diaphragm, a steady flow elastic piece is arranged between the other end of the steady flow valve core and the valve body, and a pressure stabilizing part on a core rod of the steady flow valve core is matched with the water passing hole to form a valve for adjusting the opening between the steady flow valve core and the water steady flow seat. Through setting up the reposition of redundant personnel passageway in the core bar, when rivers from the water inlet side of passageway entering steady voltage chamber, partial rivers are from the core bar and the valve body between get into the play water side through the valve, and another partial rivers can get into the reposition of redundant personnel passageway through steady flow elastic component place one end, get into the play water side through the valve from the one end that keeps away from steady flow elastic component again. By the arrangement, even if the water pressure of the water flow entering the pressure stabilizing cavity from the water inlet channel is small and is insufficient to push the flow stabilizing valve core to move, the flow stabilizing can be realized through the flow dividing channel, so that the water-gas linkage valve can stabilize the flow from the small water pressure. The water-gas linkage valve provided by the utility model can stabilize the flow with small water pressure and has good flow stabilizing effect.

In one embodiment, the core rod is further provided with a first limiting part, the first limiting part is arranged at one end of the pressure stabilizing part, which is close to the water inlet side, and is in clearance fit with the valve body, and is used for limiting the rotation of the steady flow valve core, and the first limiting part is provided with an overflow surface.

In one embodiment, the pressure stabilizing part is provided with a water outlet hole, and the water outlet hole is communicated with the water outlet end of the diversion channel.

In one embodiment, the core rod is further provided with a second limiting part, the first limiting part and the second limiting part are respectively arranged at two sides of the water inlet channel, and part of water entering the pressure stabilizing cavity from the water inlet channel flows through the overflow surface and the valve to enter the water outlet side; part of water flow can enter the diversion channel through a gap between the second limiting part and the valve body, and enters the water outlet side through the water outlet hole and the valve.

In one embodiment, the center line of the water outlet hole and the axis of the steady flow valve core are obliquely arranged at a preset angle.

In one embodiment, the preset angle is 0 ° to 60 °.

In one embodiment, the diameter of the water outlet hole is less than or equal to 3mm.

In one embodiment, the gap between the first limiting part and the valve body and the gap between the second limiting part and the valve body are both 0.05 mm-2 mm.

In one embodiment, a spring cavity is further arranged in the core rod, the spring cavity is communicated with the flow distribution channel, a step surface is formed between the spring cavity and the flow distribution channel, one end of the steady flow elastic piece is connected with the step surface, and the other end of the steady flow elastic piece is fixedly connected with the valve body.

The second technical problem is solved by the following technical scheme:

a gas appliance comprising a water gas linkage valve as claimed in any one of the above aspects.

Compared with the background technology, the gas appliance has the following beneficial effects:

the gas appliance provided by the utility model can provide stable water flow from a small water pressure by applying the water-gas linkage valve, and improves the use experience of users.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a partial cross-sectional view of a water gas linkage valve provided in an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial cross-sectional view of a water gas linkage valve according to an embodiment of the present utility model;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic structural view of a steady flow valve core according to an embodiment of the present utility model.

Description of the reference numerals:

100. a water valve; 200. a linkage valve; 300. an air valve;

1. a valve body; 2. a steady flow valve core; 3. a hydraulic pressure diaphragm; 4. a water valve core; 5. a steady flow elastic member; 6. a water steady flow seat;

11. a water inlet channel; 12. a water outlet channel; 13. a pressure stabilizing cavity; 21. a voltage stabilizing section; 22. a second limit part; 23. a first limit part; 24. a shunt channel; 25. a water outlet hole; 26. a spring cavity; 27. a core bar; 31. a block; 61. a water passing hole;

231. and an overflow surface.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

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 or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1 to 5, the present embodiment provides a water-gas linkage valve, which includes a gas valve 300, a linkage valve 200 and a water valve 100, wherein the linkage valve 200 is used for connecting the water valve 100 and the gas valve 300. The water valve comprises a valve body 1, a steady flow valve core 2, a water pressure diaphragm 3, a steady flow elastic piece 5, a water steady flow seat 6 and a water valve core 4, the linkage valve 200 comprises a linkage shaft, the water pressure diaphragm 3 is connected with the linkage shaft, the other end of the linkage shaft is connected with a gas valve 300, the steady flow valve core 2 drives the linkage shaft to move through the water pressure diaphragm 3, and the linkage shaft drives the gas valve 300 to open a gas valve, so that water arrival and gas arrival are realized, and hot water is provided.

The valve body 1 is internally provided with a water inlet channel 11, a pressure stabilizing cavity 13 and a water outlet channel 12 which are sequentially communicated, the water flow stabilizing seat 6 is arranged in the pressure stabilizing cavity 13 to divide the pressure stabilizing cavity 13 into a water inlet side and a water outlet side, the water flow stabilizing seat 6 is provided with a water passing hole 61 communicated with the water inlet side and the water outlet side, one end of the flow stabilizing valve core 2 passes through the water passing hole 61 and is fixedly connected with the water pressure diaphragm 3, the flow stabilizing elastic piece 5 is arranged between the other end of the flow stabilizing valve core 2 and the valve body 1, and the flow stabilizing valve core 2 is arranged in the pressure stabilizing cavity 13 in a sliding manner to adjust the opening between the flow stabilizing valve core 2 and the water flow stabilizing seat 6. The steady flow valve core 2 comprises a core bar 27 and a pressure stabilizing part 21 convexly arranged on the core bar 27, the pressure stabilizing part 21 is matched with a water passing hole 61 to form a valve for adjusting the opening between the steady flow valve core 2 and the water steady flow seat 6, a diversion channel 24 is arranged in the core bar 27, a water inlet end of the diversion channel 24 is arranged at one end of the core bar 27, which is close to the steady flow elastic piece 5, a water outlet end of the diversion channel 24 is arranged at a position of the core bar 27, which is far away from the steady flow elastic piece 5, and a water inlet end and a water outlet end of the diversion channel 24 are both communicated with the pressure stabilizing cavity 13.

The steady flow valve core 2 and the water valve core 4 are both arranged in the valve body 1 in a sliding way, water flow entering the valve body 1 from the water inlet channel 11 is firstly regulated in the pressure regulating cavity 13, and the water pressure change drives the steady flow valve core 2 to drive the water pressure diaphragm 3 to move so as to change the opening of the valve, so that the water flow entering the water outlet side is unchanged. The water flow enters the water outlet channel 12 from the water outlet side, enters the cavity where the water valve core 4 is positioned through the water outlet channel 12, and controls the flow of the water flow entering the heat exchange chamber through the water valve core 4.

The pressure stabilizing portion 21 has a tapered shape, and the water passing hole 61 is provided as a tapered opening. The tapered pressure stabilizing portion 21 is fitted to the tapered opening. The core bar 27 is also internally provided with a spring cavity 26, the spring cavity 26 is communicated with the shunt channel 24, the inner diameter of the spring cavity 26 is larger than the inner diameter of the shunt channel 24, a step surface is formed between the spring cavity 26 and the shunt channel 24, one end of the steady flow elastic piece 5 is connected with the step surface, and the other end is fixedly connected with the valve body 1. The steady flow elastic piece 5 is a steady flow spring, one end of the steady flow spring is fixedly connected with the valve body 1, and the other end of the steady flow spring is fixedly connected with the step surface.

By arranging the diversion channel 24 in the core bar 27, when water flows from the water inlet channel 11 to the water inlet side of the pressure stabilizing cavity 13, part of water flows from the space between the core bar 27 and the valve body 1 to the water outlet side through the valve, and the other part of water flows from one end of the steady flow elastic piece 5 to the diversion channel 24 and flows from one end far away from the steady flow elastic piece 5 to the water outlet side through the valve. By the arrangement, even if the water pressure of the water flow entering the pressure stabilizing cavity 13 from the water inlet channel 11 is small and is insufficient to push the flow stabilizing valve core 2 to move, the flow stabilizing can be realized through the flow dividing channel 24, so that the water-gas linkage valve can stabilize the flow from the small water pressure.

Because the water-gas linkage valve is required to realize steady flow under the pressure of 0.06-1 MPa, in order to avoid the swing of the steady flow valve core 2 caused by the impact of water flow in the pressure stabilizing cavity 13 when the water pressure reaches 1MPa, the steady flow performance is difficult to maintain. In an embodiment, the core rod 27 is further provided with a first limiting portion 23, the first limiting portion 23 is disposed at one end of the pressure stabilizing portion 21 near the water inlet side, and is in clearance fit with the valve body 1, so as to limit the rotation of the steady flow valve core 2, and the first limiting portion 23 is provided with an overflow surface 231. By providing the first limiting portion 23, when the water pressure is large, the steady flow valve element 2 can be limited to shake seriously in the steady pressure cavity 13. Meanwhile, the first limiting part 23 is provided with the overflow surface 231, so that the water flow from the water inlet channel 11 to the water outlet side through the valve is ensured, the smooth water flow is ensured, and the pressure stabilizing performance is realized.

In an embodiment, two overflow surfaces 231 are provided, and the two overflow surfaces 231 are both disposed in the circumferential direction of the first limiting portion 23 and are disposed opposite to each other along the radial direction of the first limiting portion 23, and a gap between the overflow surface 231 and the valve body 1 is greater than a gap between the first limiting portion 23 and the valve body 1.

In an embodiment, the core rod 27 is further provided with a second limiting part 22, the first limiting part 23 and the second limiting part 22 are respectively arranged at two sides of the water inlet channel 11, and part of water flowing from the water inlet channel 11 into the pressure stabilizing cavity 13 enters the water outlet side through the flow surface 231 and the valve; part of the water flow can enter the diversion channel 24 through the gap between the second limiting part 22 and the valve body 1 and enter the water outlet side through the water outlet hole 25 and the valve.

The gap between the first limiting portion 23 and the valve body 1 is equal to the gap between the second limiting portion 22 and the valve body 1. Namely, two opposite sides of the circular ring where the first limiting part 23 is located are respectively cut into a plane to form the overflow surface 231, so that the water flow passing through the first limiting part 23 is larger than the water flow passing through the second limiting part 22, and the flow stabilizing effect can be achieved by starting the flow stabilizing with smaller water pressure and avoiding the swing influence of the flow stabilizing valve core 2 when the flow stabilizing valve core is subjected to larger water pressure.

Through set up steady flow case 2 on steady flow case 21, first spacing portion 23, second spacing portion 22 and reposition of redundant personnel passageway 24, form the valve between steady flow case 21 and the steady flow seat 6 of water, second spacing portion 22 sets up near steady flow elastic component 5, and first spacing portion 23 locates between second spacing portion 22 and the steady flow case 21, and reposition of redundant personnel passageway 24 extends to steady voltage portion 21 from steady flow case 2 and steady flow elastic component 5's one end, and communicates with the play water side. The first limiting part 23 is provided with an overflow surface 231, the water inlet channel 11 is arranged between the second limiting part 22 and the first limiting part 23, water flows from the water inlet channel 11 into the pressure stabilizing cavity 13, and the water flow is split into two paths, one path is communicated with the water outlet side through the second limiting part 22 and the split flow channel 24, and the other path is communicated with the water outlet side through the flow surface 231 and the valve. When the water pressure is increased, the steady flow valve core 2 moves towards the direction close to the water outlet side, and the opening of the valve is reduced, so that the water flow is ensured to be unchanged; similarly, when the water pressure is reduced, the steady flow valve core 2 moves towards the direction close to the water inlet side under the action of the elastic restoring force of the steady flow elastic piece 5, and the opening of the valve is increased, so that the water flow is ensured to be unchanged. Through set up second spacing portion 22 and first spacing portion 23 respectively in the both sides of inlet channel 11, and set up overflow surface 231 on first spacing portion 23 for just can realize the stationary flow when the water pressure is less, when the water pressure is great moreover, second spacing portion 22 and first spacing portion 23 can restrict stationary flow case 2 swing, make the water pressure still guarantee the stationary flow effect when reaching 1 MPa.

In an embodiment, the gap between the first limiting part 23 and the valve body 1 and the gap between the second limiting part 22 and the valve body 1 are both 0.05 mm-2 mm.

The first limiting part 23 and the second limiting part 22 are both arranged as circular rings with the diameter larger than the outer diameter of the core rod 27, and the circular rings are in clearance fit with the valve body 1. The steady flow valve core 2 moves along the axial direction under the action of water flow, so that the steady flow valve core 2 is prevented from swinging under the action of strong water pressure, and the gap between the circular ring and the valve body 1 is not too large, so that the steady flow valve core 2 can only move along the axial direction no matter how large the water pressure is, and the steady flow effect is improved. If the flow stabilizing effect is influenced too much, the water flow is influenced too little. Therefore, the fit clearances between the first and second limiting

portions

23 and 22 and the valve body 1 need to be set according to the water flow rate and the water pressure.

In an embodiment, the pressure stabilizing portion 21 is provided with a water outlet hole 25, and the water outlet hole 25 is communicated with the water outlet end of the diversion channel 24. The central line of the water outlet hole 25 and the axis of the steady flow valve core 2 are obliquely arranged at a preset angle. When water flows from the water inlet channel 11 into the pressure stabilizing cavity 13 and the water pressure increases, the water flow drives the flow stabilizing valve core 2 to move towards the direction close to the water pressure diaphragm 3, the opening of the valve is reduced, and the sound of the water flow is loud at the moment. By setting the water outlet hole 25 for communicating the shunt passage 24 and the water outlet side as an inclined hole, the sound of water is refracted between the shunt passage 24 and the inclined hole, and between the inclined hole and the inner wall of the valve body 1, the sound of water can be attenuated, thereby reducing the noise of water.

In one embodiment, the predetermined angle is 0 ° to 60 °. In this embodiment, the preset angle is 30 °, and the water flow noise is small. The water outlet 25 can reduce the noise of water flow when the angle is 0-60 degrees. Since the pressure stabilizing portion 21 is tapered, the water outlet 25 is inclined from the direction of the axis of the steady flow valve element 2 to the direction away from the axis of the steady flow valve element 2.

In one embodiment, the diameter of the water outlet 25 is 3mm or less. The size of the aperture of the water outlet 25 is related to the water flow rate and the steady flow effect, and can be calculated and obtained experimentally by a person skilled in the art according to the water flow rate and the steady flow effect to be achieved.

The water flow after being stabilized by the steady flow valve core 2 enters the cavity where the water valve core 4 is located, and the flow of the water flow entering the heat exchange chamber is controlled by the water valve core 4.

In one embodiment, the water outlet channel 12 is located between the pressure stabilizing cavity 13 and the cavity where the water valve core 4 is located, and is used for communicating the pressure stabilizing cavity 13 and the cavity where the water valve core 4 is located; the water pressure diaphragm 3 is provided with a blocking block 31, the blocking block 31 can be matched with one end of the water outlet channel 12 to block the water outlet channel 12, and the steady flow valve core 2 moves to drive the water pressure diaphragm 3 to move to remove the blocking. When no water exists in the water inlet channel 11, the water pressure diaphragm 3 seals the water outlet channel 12, after the water inlet channel 11 is filled with water, the water flow drives the steady flow valve core 2 to move, and the steady flow valve core 2 drives the water pressure diaphragm 3 to move in a direction away from the water outlet channel 12, so that the water flow after being stabilized by the steady flow valve core 2 enters the cavity where the water valve core 4 is located through the water outlet channel 12.

The embodiment also provides a gas appliance, which comprises the water-gas linkage valve. The gas appliance using the water-gas linkage valve has the advantages that the flow distribution channel 24 is arranged in the core bar 27, so that the flow stabilization can be realized when the water pressure is small, the first limiting part 23 and the second limiting part 22 are arranged, the flow passing surface 231 is arranged on the first limiting part 23, the pressure stabilization performance can be ensured, the swing of the flow stabilization valve core 2 when the water pressure is large can be avoided, the flow stabilization effect is improved, and the use experience of a user is improved.

The gas appliance can be a gas water heater or a wall-mounted stove.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The water-gas linkage valve comprises a water valve, the water valve comprises a valve body (1), a steady flow valve core (2), a water pressure diaphragm (3), a steady flow elastic piece (5) and a water steady flow seat (6), a water inlet channel (11) and a steady pressure cavity (13) which are communicated are arranged in the valve body (1), the water steady flow seat (6) is arranged in the steady pressure cavity (13) so as to divide the steady pressure cavity (13) into a water inlet side and a water outlet side, a water through hole (61) which is communicated with the water inlet side and the water outlet side is arranged on the water steady flow seat (6), one end of the steady flow valve core (2) penetrates through the water through hole (61) and is fixedly connected with the water pressure diaphragm (3), the steady flow elastic piece (5) is arranged between the other end of the steady flow valve core (2) and the valve body (1), and the steady flow valve core (2) is arranged in the steady pressure cavity (13) in a sliding manner so as to adjust the opening degree between the steady flow valve core (2) and the water steady flow seat (6). It is characterized in that the method comprises the steps of,

the steady flow valve core (2) comprises a core bar (27) and a pressure stabilizing part (21) protruding on the core bar (27), the pressure stabilizing part (21) is matched with the water passing hole (61) to form a valve for adjusting the opening between the steady flow valve core (2) and the water steady flow seat (6), a diversion channel (24) is arranged in the core bar (27), the water inlet end of the diversion channel (24) is arranged at one end, close to the steady flow elastic piece (5), of the core bar (27), the water outlet end of the diversion channel (24) is arranged at the position, away from the steady flow elastic piece (5), of the core bar (27), and the water inlet end and the water outlet end of the diversion channel are both communicated with the pressure stabilizing cavity (13).

2. The water-gas linkage valve according to claim 1, wherein the core rod (27) is further provided with a first limiting part (23), and the first limiting part (23) is arranged at one end of the pressure stabilizing part (21) close to the water inlet side and is in clearance fit with the valve body (1) for limiting the rotation of the steady flow valve core (2); the first limiting part (23) is provided with an overflow surface (231).

3. The water-gas linkage valve according to claim 2, wherein the pressure stabilizing portion (21) is provided with a water outlet hole (25), and the water outlet hole (25) is communicated with a water outlet end of the diversion channel (24).

4. A water-gas linkage valve according to claim 3, wherein the core rod (27) is further provided with a second limiting part (22), the first limiting part (23) and the second limiting part (22) are respectively arranged at two sides of the water inlet channel (11), and part of water entering the pressure stabilizing cavity (13) from the water inlet channel (11) flows through the overflow surface (231) and the valve to enter the water outlet side; part of water flow can enter the diversion channel (24) through a gap between the second limiting part (22) and the valve body (1), and enters the water outlet side through the water outlet hole (25) and the valve.

5. The water-gas linkage valve according to claim 4, wherein a center line of the water outlet hole (25) is obliquely arranged at a preset angle with an axis of the steady flow valve core (2).

6. The water gas linkage valve according to claim 5 wherein the predetermined angle is 0 ° to 60 °.

7. The water gas linkage valve according to claim 6, wherein the diameter of the water outlet hole (25) is 3mm or less.

8. The water gas linkage valve according to claim 4, wherein the gap between the first limiting part (23) and the valve body (1) and the gap between the second limiting part (22) and the valve body (1) are both 0.05 mm-2 mm.

9. The water-gas linkage valve according to claim 1, wherein a spring cavity (26) is further arranged in the core rod (27), the spring cavity (26) is communicated with the flow distribution channel (24), a step surface is formed between the spring cavity (26) and the flow distribution channel (24), one end of the steady flow elastic piece (5) is connected with the step surface, and the other end of the steady flow elastic piece is fixedly connected with the valve body (1).

10. Gas appliance comprising a water gas linkage valve according to any of claims 1-9.