Water-gas linkage valve and gas device

Abstract

The utility model relates to the technical field of gas devices, and discloses a water-gas linkage valve and a gas device. The water-gas linkage valve comprises a water valve and a linkage valve, the water valve comprises a water valve body, a flow-stabilizing valve core, a water pressure diaphragm and a diaphragm seat, the linkage valve comprises a linkage valve body and a linkage shaft, the water pressure diaphragm is arranged between the water valve body and the linkage valve body, the flow-stabilizing valve core is connected to the diaphragm seat, the diaphragm seat is connected to the linkage shaft, the flow-stabilizing valve core moves with the linkage shaft through the diaphragm seat, the water pressure diaphragm is arranged between the flow-stabilizing valve core and the diaphragm seat, or the water pressure diaphragm is arranged between the linkage shaft and the diaphragm seat. When the flow-stabilizing valve core moves under the action of water flow, it is restricted by the diaphragm seat and the linkage shaft, and can only move along the axial direction of the water valve body, and will not shake, thereby ensuring the flow-stabilizing effect, without the need to ensure the flow-stabilizing effect by setting a limiter on the flow-stabilizing valve core, and further, the water flow of the water-gas linkage valve will not be affected by the small water flow through the flow-passing surface on the limiter.

Description

Technical Field

[0001] The utility model relates to the technical field of gas devices, in particular to a water-gas linkage valve and a gas device. Background Art

[0002] Gas devices include gas water heaters or wall-mounted boilers, which use gas as fuel to provide users with domestic hot water or heating hot water. They usually rely on water-gas linkage valves to control the opening of the gas valve and the gas pressure to provide users with water with different heat loads.

[0003] The water-gas linkage valve includes a water valve, an air valve and a linkage valve for connecting the water valve and the air valve. The water valve includes a water valve body, a flow-stabilizing valve core and a water pressure diaphragm. The linkage valve includes a linkage valve body and a linkage shaft. The air valve includes an air valve body and an air valve core. The water pressure diaphragm is connected to the linkage shaft through a diaphragm seat. The linkage shaft is connected to the air valve core. Under the action of the water flow, the flow-stabilizing valve core moves in the water valve body. After the flow-stabilizing valve core contacts the water pressure diaphragm, the linkage shaft is driven to move through the diaphragm seat. The linkage shaft is restricted by the linkage valve body and moves along the axial direction to drive the air valve core to move. The air valve is opened, and the gas enters the combustion chamber from the air valve to burn, providing heat for the water flow. In order to achieve a better flow-stabilizing effect, the water-gas linkage valve in the prior art is provided with a limit portion on the flow-stabilizing valve core, and flow surfaces are provided on opposite sides of the limit portion. The limit portion enables the flow-stabilizing valve core to move axially in the water valve body without swinging, and the flow surface allows water to pass through. Such a structure is suitable for smaller gas devices. In larger gas devices, flow limitation may occur, so that the water flow rate cannot meet the flow rate requirement and cannot meet the water demand of the larger gas device. Utility Model Content

[0004] One of the technical problems solved by the utility model is to provide a water-gas linkage valve, which can effectively solve the problem of the existing water-gas linkage valve limiting the water flow rate while meeting the steady flow performance, so that the water-gas linkage valve not only has good steady flow performance, but also can meet a larger water flow demand.

[0005] The second technical problem solved by the present invention is to provide a gas device, which can solve the problem that the existing gas devices cannot meet the larger water flow demand while meeting the steady flow performance. It can not only ensure the steady flow performance of the gas device, but also meet the water demand of the larger volume of gas devices.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A water-gas linkage valve comprises a water valve and a linkage valve, wherein the water valve comprises a water valve body, a flow-stabilizing valve core, a water pressure diaphragm and a diaphragm seat, and the linkage valve comprises a linkage valve body and a linkage shaft, wherein the water pressure diaphragm is arranged between the water valve body and the linkage valve body, wherein the flow-stabilizing valve core is connected to the diaphragm seat, and the diaphragm seat is connected to the linkage shaft, the flow-stabilizing valve core moves with the linkage shaft through the diaphragm seat, and the water pressure diaphragm is arranged between the flow-stabilizing valve core and the diaphragm seat, or the water pressure diaphragm is arranged between the linkage shaft and the diaphragm seat.

[0008] Compared with the background technology, the water-gas linkage valve of the utility model has the following beneficial effects:

[0009] The water-gas linkage valve provided by the utility model connects the flow-stabilizing valve core with the diaphragm seat, the diaphragm seat is connected with the linkage shaft, and the hydraulic diaphragm is arranged between the flow-stabilizing valve core and the diaphragm seat. Since the hydraulic diaphragm is arranged between the water valve body and the linkage valve body, the diaphragm seat is connected to the flow-stabilizing valve core and the linkage shaft through the hydraulic diaphragm. Since the linkage shaft moves along the axial direction, when the flow-stabilizing valve core moves under the action of the water flow, it is restricted by the diaphragm seat and the linkage shaft and can only move along the axial direction of the water valve body without shaking, thereby ensuring the flow-stabilizing effect, and there is no need to ensure the flow-stabilizing effect by setting a limit part on the flow-stabilizing valve core, and further, the water flow of the water-gas linkage valve will not be affected by the small water flow through the flow surface on the limit part. The water-gas linkage valve provided by the utility model can not only ensure the flow-stabilizing effect, but also meet the demand for a larger water flow.

[0010] In one embodiment, a first connection structure is provided at one end of the diaphragm seat close to the flow stabilizing valve core, and a second connection structure is provided at one end of the flow stabilizing valve core close to the water pressure diaphragm, and the first connection structure and the second connection structure are detachably connected.

[0011] In one of the embodiments, one of the first connecting structure and the second connecting structure is a snap-fitting protrusion and the other is a snap-fitting groove, the snap-fitting protrusion is snap-fitted with the snap-fitting groove, and a matching portion that matches the snap-fitting protrusion and the snap-fitting groove is provided on the water pressure diaphragm, and the matching portion is clamped between the snap-fitting protrusion and the snap-fitting groove.

[0012] In one embodiment, the mating portion includes a mating protrusion, and the mating protrusion is arranged toward the flow-stabilizing valve core or toward the diaphragm seat.

[0013] In one of the embodiments, the mating portion includes a mating hole, and the snap-fitting protrusion passes through the mating hole to be snap-fitted with the snap-fitting groove.

[0014] In one of the embodiments, the mating portion further includes a sealing groove, which is arranged in the circumference of the mating hole. A first sealing ring is arranged in the sealing groove, and an inner wall of the first sealing ring is sealed in cooperation with an outer wall of the snap-fit ​​protrusion.

[0015] In one embodiment, a first sealing seat and a second sealing seat are arranged in the linkage valve body at intervals, the first sealing seat is arranged between the water valve and the second sealing seat, a first through-hole is arranged on the first sealing seat, a second through-hole is arranged on the second sealing seat, the linkage shaft passes through the first through-hole and the second through-hole, and the linkage shaft can move along the axial direction of the first through-hole and the axial direction of the second through-hole; a first sealing assembly is arranged in the first sealing seat, and a second sealing assembly is arranged in the second sealing seat.

[0016] In one embodiment, the water-gas linkage valve also includes a micro switch assembly, which includes a contact and a shift fork, the shift fork is rotatably connected to the shift fork shaft, a trigger member is provided on the linkage shaft, the trigger member is provided between the first sealing seat and the second sealing seat, the linkage shaft drives the trigger member to move, the trigger member can abut against one end of the shift fork and drive the shift fork to rotate, so that the other end of the shift fork triggers the contact.

[0017] In one embodiment, the trigger member includes a fixed inner ring and a trigger outer edge, a groove is provided circumferentially of the linkage shaft, the fixed inner ring is engaged with the groove, the trigger outer edge extends from the fixed inner ring in a direction away from the linkage shaft, the linkage shaft drives the trigger member to move, and the trigger outer edge can abut against the fork.

[0018] The above second technical problem is solved by the following technical solution:

[0019] A gas device, comprising a water-gas linkage valve as described in any of the above schemes.

[0020] Compared with the background technology, the gas device described in the utility model has the following beneficial effects:

[0021] The gas device provided by the utility model uses the water-gas linkage valve, which can not only ensure the steady flow performance of the gas device, but also meet the water demand of the gas device with a larger volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 It is a cross-sectional view of a water-gas linkage valve provided in a specific embodiment of the utility model;

[0024] Figure 2 It is a partial cross-sectional view of the connection between the steady flow valve core, the hydraulic diaphragm, the diaphragm seat and the linkage shaft provided by the specific embodiment of the utility model;

[0025] Figure 3 It is an exploded schematic diagram of a flow-stabilizing valve core, a water pressure diaphragm, a diaphragm seat and a linkage shaft provided by a specific implementation method of the utility model.

[0026] Description of labels:

[0027] 1. Water valve; 11. Water valve body; 12. Flow-stabilizing valve core; 121. Clamping protrusion; 13. Water pressure diaphragm; 131. Mounting groove; 1311. Matching protrusion; 14. Diaphragm seat; 141. Clamping groove; 142. Slot; 15. Water valve spring;

[0028] 2. linkage valve; 21. linkage valve body; 211. first sealing seat; 2111. first through hole; 2112. first sealing groove; 2113. first opening; 212. second sealing seat; 2121. second through hole; 2122. second sealing groove; 2123. second opening; 22. linkage shaft; 221. groove; 23. trigger member; 231. fixed inner ring; 232. trigger outer edge;

[0029] 3. Air valve; 31. Air valve body; 32. Air valve core; 33. Air valve spring; 34. Sealing gasket;

[0030] 41. second sealing ring; 42. third sealing ring;

[0031] 5. Micro switch assembly; 51. Fork. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of the present application, it should be understood that the terms "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] like Figure 1 As shown, this embodiment provides a water-gas linkage valve, including a water valve 1, a linkage valve 2 and a gas valve 3. The linkage valve 2 is used to connect the water valve 1 and the gas valve 3. The water valve 1 includes a water valve body 11, a flow-stabilizing valve core 12, a hydraulic diaphragm 13 and a diaphragm seat 14. The linkage valve 2 includes a linkage valve body 21 and a linkage shaft 22. The hydraulic diaphragm 13 is arranged between the water valve body 11 and the linkage valve body 21. The hydraulic diaphragm 13 is connected to the linkage shaft 22 through the diaphragm seat 14. The other end of the linkage shaft 22 is connected to the gas valve 3. The gas valve 3 includes a gas valve body 31 and a gas valve core 32. The gas valve body 31 is provided with a valve. The linkage shaft 22 is connected to the gas valve core 32. The flow-stabilizing valve core 12 drives the linkage shaft 22 to move through the hydraulic diaphragm 13 to open the water valve in the water valve body 11. The linkage shaft 22 drives the gas valve core 32 to move and open the valve, so that water and gas are reached. The gas enters the combustion chamber through the valve and burns to heat the water to provide hot water.

[0037] In the prior art, in order to ensure that the flow-stabilizing valve core 12 only moves along the axial direction of the water valve body 11 under the drive of water and does not swing, so as to provide a stable water flow and ensure the flow-stabilizing performance of the water-gas linkage valve. A limit portion is provided on the flow-stabilizing valve core 12, and the limit portion cooperates with the inner wall clearance of the water valve body 11 to limit the rotation of the flow-stabilizing valve core 12 and reduce the swing of the flow-stabilizing valve core 12 when the water pressure is high. By providing a flow surface on the limit portion, it is ensured that the water flows from the water inlet side through the water valve into the water outlet side, ensuring smooth water flow and achieving pressure stabilizing performance. Since the flow rate of water passing through the flow surface is small, the above design has a good flow stabilizing effect on gas devices with a smaller volume of 11L and below and does not affect the flow rate, but on gas devices with a larger volume of 14L and above, flow limitation will occur, and the flow rate cannot reach 14L / min and above.

[0038] In order to solve the above technical problems, Figure 1-Figure 3 As shown, in the water-gas linkage valve provided in this embodiment, the flow-stabilizing valve core 12 is connected to the diaphragm seat 14, the diaphragm seat 14 is connected to the linkage shaft 22, and the flow-stabilizing valve core 12 moves with the linkage shaft 22 through the diaphragm seat 14. The hydraulic diaphragm 13 is arranged between the flow-stabilizing valve core 12 and the diaphragm seat 14, or the hydraulic diaphragm 13 is arranged between the linkage shaft 22 and the diaphragm seat 14. Since the hydraulic diaphragm 13 is arranged between the water valve body 11 and the linkage valve body 21, the diaphragm seat 14 connects the flow-stabilizing valve core 12 and the linkage shaft 22 through the hydraulic diaphragm 13. Since the linkage shaft 22 moves along the axial direction, when the flow-stabilizing valve core 12 moves under the action of the water flow, it is restricted by the diaphragm seat 14 and the linkage shaft 22, and the flow-stabilizing valve core 12 can only move along the axial direction of the water valve body 11 without shaking, thereby ensuring the flow-stabilizing effect, and there is no need to ensure the flow-stabilizing effect by setting a limit part on the flow-stabilizing valve core 12, and further, the water flow of the water-gas linkage valve will not be affected by the small water flow through the flow surface on the limit part. The water-gas linkage valve provided in this embodiment can not only ensure the flow-stabilizing effect, but also meet the demand for a larger water flow.

[0039] In one embodiment, the diaphragm seat 14 is disposed on a side of the hydraulic diaphragm 13 close to the linkage shaft 22 . Of course, in other embodiments, the diaphragm seat 14 may also be disposed on a side of the hydraulic diaphragm 13 close to the flow-stabilizing valve core 12 .

[0040] Specifically, a slot 142 is provided at one end of the diaphragm seat 14 close to the linkage shaft 22, and one end of the linkage shaft 22 is inserted into the slot 142 to achieve plug-in fixation of the linkage shaft 22 and the diaphragm seat 14. A hydraulic diaphragm 13 is provided between the flow-stabilizing valve core 12 and the diaphragm seat 14, and the flow-stabilizing valve core 12 can pass through the hydraulic diaphragm 13 to connect with the diaphragm seat 14, or the hydraulic diaphragm 13 can be clamped between the flow-stabilizing valve core 12 and the diaphragm seat 14.

[0041] In one embodiment, a first connection structure is provided at one end of the diaphragm seat 14 close to the flow stabilizing valve core 12, and a second connection structure is provided at one end of the flow stabilizing valve core 12 close to the hydraulic diaphragm 13, and the first connection structure and the second connection structure are detachably connected. The first connection structure and the second connection structure can be detachably connected by means of snap connection, plug connection, or ultrasonic welding.

[0042] In one embodiment, one of the first connection structure and the second connection structure is a clamping protrusion 121, and the other is a clamping groove 141. The clamping protrusion 121 is clamped with the clamping groove 141. A matching portion that matches the clamping protrusion 121 and the clamping groove 141 is provided on the hydraulic diaphragm 13, and the matching portion is sandwiched between the clamping protrusion 121 and the clamping groove 141. The diaphragm seat 14 and the flow-stabilizing valve core 12 are fixedly connected by clamping the clamping protrusion 121 and the clamping groove 141, and the matching portion is provided on the hydraulic diaphragm 13, so that the matching portion is clamped between the clamping protrusion 121 and the clamping groove 141, so that the flow-stabilizing valve core 12 is restricted by the diaphragm seat 14 and the linkage shaft 22, and can only move in the axial direction, and will not produce a large swing to affect the stability of the water flow.

[0043] In this embodiment, if Figure 3 As shown, a mounting groove 131 is provided on the side of the hydraulic diaphragm 13 away from the flow-stabilizing valve core 12, and the diaphragm seat 14 is installed in the mounting groove 131 and fixedly connected to the hydraulic diaphragm 13. A mounting protrusion is provided on the side of the diaphragm seat 14 away from the bottom of the mounting groove 131, and a slot 142 is provided at the center of the mounting protrusion, which increases the depth of the slot 142 and the insertion depth of the linkage shaft 22 and the slot 142, thereby ensuring the stability of the connection between the linkage shaft 22 and the diaphragm seat 14. A clamping groove 141 is provided on one side of the diaphragm seat 14 near the bottom of the installation groove 131, and a clamping protrusion 121 matched with the clamping groove 141 is provided on one end of the flow-stabilizing valve core 12 near the diaphragm seat 14. The matching portion includes a matching protrusion 1311, and the matching protrusion 1311 is arranged toward the diaphragm seat 14, so that the matching protrusion 1311 forms a matching groove on the side facing the flow-stabilizing valve core 12, and the clamping protrusion 121 is placed in the matching groove, and the matching protrusion 1311 is placed in the clamping groove 141. After the clamping protrusion 121 and the clamping groove 141 are clamped and matched, the matching protrusion 1311 of the hydraulic diaphragm 13 is pressed between the clamping protrusion 121 and the clamping groove 141. In other embodiments, the clamping groove 141 can also be provided on the flow-stabilizing valve core 12, and the clamping protrusion 121 is provided on the diaphragm seat 14. Accordingly, the matching protrusion 1311 is arranged toward the flow-stabilizing valve core 12.

[0044] In one embodiment, the matching portion includes a matching hole, and the clamping protrusion 121 passes through the matching hole to be clamped and matched with the clamping groove 141. The shape of the matching hole is adapted to the shape of the clamping protrusion 121 and the clamping groove 141, and can be a round hole or a square hole.

[0045] In one embodiment, one of the first connection part and the second connection part is a plug-in hole, and the other is a plug-in column. The plug-in column passes through the matching hole and matches with the plug-in hole to achieve the fixation of the steady flow valve core 12 and the diaphragm seat 14.

[0046] When the matching portion is a matching hole, in order to prevent water in the water valve 1 from entering the linkage valve 2 through the matching hole, the matching portion further includes a sealing groove, which is arranged in the circumference of the matching hole, and a first sealing ring is arranged in the sealing groove, and the inner wall of the first sealing ring is matched and sealed with the outer wall of the clamping protrusion 121. By arranging the first sealing ring in the circumference of the matching hole, the sealing performance of the water valve 1 is ensured, and water is prevented from entering the linkage valve 2 through the matching hole.

[0047] In one embodiment, if Figure 2 As shown, a first sealing seat 211 and a second sealing seat 212 are arranged in the linkage valve body 21 at intervals, the first sealing seat 211 is arranged between the water valve 1 and the second sealing seat 212, a first through hole 2111 is arranged on the first sealing seat 211, and a second through hole 2121 is arranged on the second sealing seat 212, the linkage shaft 22 passes through the first through hole 2111 and the second through hole 2121 in sequence, and the linkage shaft 22 can move along the axial direction of the first through hole 2111 and the axial direction of the second through hole 2121; a first sealing assembly is arranged in the first sealing seat 211, and a second sealing assembly is arranged in the second sealing seat 212. The first sealing assembly includes two second sealing rings 41, which are arranged side by side on one side of the first through hole 2111 close to the diaphragm seat 14, further ensuring the sealing performance in the linkage valve body 21 and preventing the water flow in the water valve body 11 from entering the linkage valve body 21. The second sealing assembly includes a third sealing ring 42, which is arranged on the side of the second through hole 2121 away from the air valve 3, and is used to prevent the gas in the air valve body 31 from entering the linkage valve body 21 through the second through hole 2121. In addition, a sealing gasket 34 is also arranged on the side of the air valve core 32 close to the air valve. When the air valve core 32 closes the air valve, the sealing gasket 34 abuts against the peripheral wall of the air valve to further ensure the sealing of the gas.

[0048] A first opening 2113 is provided on a side of the first sealing seat 211 away from the first through hole 2111, and a first sealing groove 2112 is provided between the first opening 2113 and the first through hole 2111. The diameter of the first opening 2113 is slightly smaller than the first sealing groove 2112, and the diameter of the first sealing groove 2112 is much larger than the diameter of the first through hole 2111, so that the second sealing ring 41 can enter the first sealing groove 2112 through the first opening 2113, and after entering, the two ends are respectively limited by the stepped surface between the first through hole 2111 and the first sealing groove 2112, and the stepped surface between the first sealing groove 2112 and the first opening 2113. A chamfer is provided on the end of the first opening 2113 away from the first sealing groove 2112, so as to facilitate the second sealing ring 41 to enter the first sealing groove 2112 through the first opening 2113. The provision of the first sealing seat 211 not only facilitates the installation of the second sealing ring 41 , but also serves to limit the second sealing ring 41 , thereby preventing the second sealing ring 41 from escaping from the first sealing groove 2112 . Similarly, a second opening 2123 is provided on the side of the second sealing seat 212 away from the second through hole 2121, a second sealing groove 2122 is provided between the second opening 2123 and the second through hole 2121, the diameter of the second opening 2123 is slightly smaller than the diameter of the second sealing groove 2122, and the diameter of the second sealing groove 2122 is much larger than the diameter of the second through hole 2121, so that the third sealing ring 42 can enter the second sealing groove 2122 through the second opening 2123, and after entering, the two ends are respectively limited by the stepped surface between the second through hole 2121 and the second sealing groove 2122, and the stepped surface between the second sealing groove 2122 and the second opening 2123, and the end of the second opening 2123 away from the second sealing groove 2122 is provided with a chamfer to facilitate the third sealing ring 42 to enter the second sealing groove 2122. The provision of the second sealing seat 212 not only facilitates the installation of the third sealing ring 42, but also plays a limiting role for the third sealing ring 42.

[0049] In addition, the setting of the first sealing seat 211 and the second sealing seat 212 can limit the swing of the linkage shaft 22. Since the linkage shaft 22 is connected to the steady flow valve core 12 through the diaphragm seat 14, the swing of the steady flow valve core 12 is limited, further improving the swing of the water-gas linkage valve.

[0050] In one embodiment, the water-gas linkage valve further includes a micro switch assembly 5, which includes a contact and a fork 51, the fork 51 is rotatably connected to the fork shaft, a trigger 23 is provided on the linkage shaft 22, the trigger 23 is provided between the first sealing seat 211 and the second sealing seat 212, the linkage shaft 22 drives the trigger 23 to move, the trigger 23 can abut against one end of the fork 51 and drive the fork 51 to rotate, so that the other end of the fork 51 triggers the contact. After the contact of the micro switch assembly 5 is triggered, the solenoid valve on the gas passage is opened, so that the gas source can provide gas to the gas valve body 31, and after the valve is opened, the gas enters the combustion chamber through the valve for combustion.

[0051] The micro switch assembly 5 is fixed on the bracket outside the linkage valve body 21, and the fork 51 is rotatably connected to the bracket. The working principle that the solenoid valve on the gas passage is opened after the contact of the micro switch assembly 5 is triggered is already existing technology and will not be repeated here.

[0052] In one embodiment, the trigger member 23 includes a fixed inner ring 231 and a trigger outer edge 232. A groove 221 is provided on the circumference of the linkage shaft 22. The fixed inner ring 231 is snap-fitted with the groove 221. The trigger outer edge 232 extends from the fixed inner ring 231 in a direction away from the linkage shaft 22. The linkage shaft 22 drives the trigger member 23 to move. The trigger outer edge 232 can abut against the fork 51, driving the fork 51 to rotate the trigger contact.

[0053] In this embodiment, in order to realize the installation of the trigger member 23 and the groove 221, the first sealing seat 211 is set to be detachably connected to the linkage valve body 21, and the second sealing seat 212 and the linkage valve body 21 are set to be an integral structure. During installation, the second sealing ring 41 is first installed in the first sealing groove 2112, and the third sealing ring 42 is installed in the second sealing groove 2122, and the fixed inner ring 231 of the trigger member 23 is clamped with the groove 221, and then one end of the linkage shaft 22 is passed through the second opening 2123, the inner ring of the third sealing ring 42 and the second through-hole 2121 in sequence to be connected to the air valve core 32, and then the other end of the linkage shaft 22 is passed through the first through-hole 2111, the inner ring of the second sealing ring 41 and the first opening 2113 in sequence to extend out, and the first sealing seat 211 is fixedly connected to the linkage valve body 21, and finally the extended end of the linkage shaft 22 is inserted into the slot 142 of the diaphragm seat 14. In the water valve body 11, a water valve spring 15 is further provided at one end of the flow-stabilizing valve core 12 away from the diaphragm seat 14, one end of the water valve spring 15 is connected to the water valve body 11, and the other end is connected to the flow-stabilizing valve core 12. In the gas valve body 31, an air valve spring 33 is provided at one end of the air valve core 32 away from the linkage shaft 22, one end of the air valve spring 33 is connected to the air valve body 31, and the other end is connected to the air valve core 32. After the water stops flowing into the water valve body 11, the pressure on the water inlet side decreases, and under the elastic restoring force of the air valve spring 33 and the water valve spring 15, the air valve core 32, the linkage shaft 22 and the flow-stabilizing valve core 12 are reset, and the trigger member 23 on the linkage shaft 22 gradually disengages from the contact with the fork 51. After the fork 51 disengages from the trigger member 23, it rotates around the fork shaft, thereby realizing the disengagement from the contact point, the solenoid valve is closed, and the air source stops supplying air to the gas valve body 31. There is no need to set a linkage spring in the linkage valve 2, the installation structure is simple, and the cost is reduced.

[0054] In one embodiment, the trigger member 23 is a retaining ring. Of course, in other embodiments, the trigger member 23 can also be a convex block arranged on the circumference of the linkage shaft 22.

[0055] This embodiment also provides a gas device, including the water-gas linkage valve. The gas device can not only ensure the steady flow performance of the gas device, but also meet the water demand of the gas device with a larger volume. In addition, there is no need to set a linkage spring in the linkage valve 2, which reduces materials, and the installation structure is simple, which reduces costs.

[0056] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A water-gas linkage valve, comprising a water valve (1) and a linkage valve (2), wherein the water valve (1) comprises a water valve body (11), a flow-stabilizing valve core (12), a water pressure diaphragm (13) and a diaphragm seat (14), and the linkage valve (2) comprises a linkage valve body (21) and a linkage shaft (22), wherein the water pressure diaphragm (13) is arranged between the water valve body (11) and the linkage valve body (21), and wherein: The flow-stabilizing valve core (12) is connected to the diaphragm seat (14), the diaphragm seat (14) is connected to the linkage shaft (22), the flow-stabilizing valve core (12) moves with the linkage shaft (22) through the diaphragm seat (14), and the water pressure diaphragm (13) is arranged between the flow-stabilizing valve core (12) and the diaphragm seat (14), or the water pressure diaphragm (13) is arranged between the linkage shaft (22) and the diaphragm seat (14).

2. The water-gas linkage valve according to claim 1, characterized in that: A first connection structure is provided at one end of the diaphragm seat (14) close to the flow stabilizing valve core (12), and a second connection structure is provided at one end of the flow stabilizing valve core (12) close to the water pressure diaphragm (13), and the first connection structure and the second connection structure are detachably connected.

3. The water-gas linkage valve according to claim 2, characterized in that: One of the first connection structure and the second connection structure is a snap-fit ​​protrusion (121), and the other is a snap-fit ​​groove (141). The snap-fit ​​protrusion (121) is snap-fitted with the snap-fit ​​groove (141). A matching portion that matches the snap-fit ​​protrusion (121) and the snap-fit ​​groove (141) is provided on the water pressure diaphragm (13), and the matching portion is clamped between the snap-fit ​​protrusion (121) and the snap-fit ​​groove (141).

4. The water-gas linkage valve according to claim 3, characterized in that: The matching portion comprises a matching protrusion (1311), and the matching protrusion (1311) is arranged toward the flow-stabilizing valve core (12) or toward the diaphragm seat (14).

5. The water-gas linkage valve according to claim 3, characterized in that: The matching portion comprises a matching hole, and the clamping protrusion (121) passes through the matching hole to be clamped and matched with the clamping groove (141).

6. The water-gas linkage valve according to claim 5, characterized in that: The mating portion further comprises a sealing groove, which is arranged in the circumference of the mating hole. A first sealing ring is arranged in the sealing groove, and the inner wall of the first sealing ring is matingly sealed with the outer wall of the clamping protrusion (121).

7. The water-gas linkage valve according to any one of claims 1 to 6, characterized in that: A first sealing seat (211) and a second sealing seat (212) are arranged in the linkage valve body (21), the first sealing seat (211) is arranged between the water valve (1) and the second sealing seat (212), the first sealing seat (211) is provided with a first through hole (2111), and the second sealing seat (212) is provided with a second through hole (2121), the linkage shaft (22) passes through the first through hole (2111) and the second through hole (2121), and the linkage shaft (22) can move along the axial direction of the first through hole (2111) and the axial direction of the second through hole (2121); a first sealing component is arranged in the first sealing seat (211), and a second sealing component is arranged in the second sealing seat (212).

8. The water-gas linkage valve according to claim 7, characterized in that: The water-gas linkage valve further comprises a micro switch assembly (5), the micro switch assembly (5) comprising a contact and a shift fork (51), the shift fork (51) being rotatably connected to the shift fork shaft, a trigger member (23) being arranged on the linkage shaft (22), the trigger member (23) being arranged between the first sealing seat (211) and the second sealing seat (212), the linkage shaft (22) driving the trigger member (23) to move, the trigger member (23) being able to abut against one end of the shift fork (51) and driving the shift fork (51) to rotate, so that the other end of the shift fork (51) triggers the contact.

9. The water-gas linkage valve according to claim 8, characterized in that: The trigger member (23) comprises a fixed inner ring (231) and a trigger outer edge (232); a groove (221) is arranged on the circumference of the linkage shaft (22); the fixed inner ring (231) is engaged with the groove (221); the trigger outer edge (232) extends from the fixed inner ring (231) in a direction away from the linkage shaft (22); the linkage shaft (22) drives the trigger member (23) to move, and the trigger outer edge (232) can abut against the shift fork (51).

10. A gas-fired device, characterized in that: It comprises a water-gas linkage valve as described in any one of claims 1-9.

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