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, a linkage valve and a gas valve. The water valve comprises a water valve body, a water stabilizing flow core, a diaphragm assembly, a water stabilizing flow spring and an air outlet pressure regulating member. The water stabilizing flow core is movably arranged in the water valve body, one end of the water stabilizing flow core is connected to the water stabilizing flow spring, and the other end is connected to the diaphragm assembly. The two ends of the linkage shaft are respectively connected to the air valve and the diaphragm assembly. The air outlet pressure regulating member is arranged at one end of the water stabilizing flow spring away from the water stabilizing flow core. The air outlet pressure regulating member adjusts the compression amount of the water stabilizing flow spring to adjust the air outlet pressure of the air valve when the starting water flow rate is reached. The water-gas linkage valve realizes the adjustment of the air outlet pressure when the starting water flow rate is reached, ensures that the air outlet pressure meets the requirements, and avoids the occurrence of ignition failure and water overheating.

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 water stabilizing core and a water 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 diaphragm is connected to the linkage shaft through a diaphragm seat, and the linkage shaft is connected to the air valve core. Under the action of the water flow, the water stabilizing core moves in the water valve body. After the water stabilizing core contacts the water diaphragm, the linkage shaft is driven to move through the diaphragm seat, and the linkage shaft drives the air valve core to move, opening the valve, and the gas enters the combustion chamber from the valve to burn, providing heat for the water flow. The water flow rate of the water-gas linkage valve is small when it is started, and there are many parts in the water valve. Due to the accumulation of machining tolerances of various parts, the opening of the valve is difficult to accurately control, which will cause the outlet pressure to fluctuate greatly when the water-gas linkage valve is just started. If the outlet pressure is large, the water temperature is too high, there is a risk of scalding or the thermostat is triggered to work, causing the gas device to shut down and affecting the user experience; if the outlet pressure is too small, it is easy to cause ignition failure. 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 unstable outlet pressure of the existing water-gas linkage valve when starting, so as to adjust the outlet pressure when the water-gas linkage valve starts and reaches the starting water flow rate, thereby ensuring the stability of the outlet pressure.

[0005] The second technical problem solved by the utility model is to provide a gas device, which can solve the problem of excessive water temperature or ignition failure when the existing gas device is started, can ensure that the gas device is successfully ignited when started, and ensure that the water temperature is appropriate, thereby improving the user experience.

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

[0007] A water-gas linkage valve comprises a water valve, a linkage valve and an air valve, wherein the water valve comprises a water valve body, a water stabilizing flow core, a diaphragm assembly and a water stabilizing flow spring, wherein the water stabilizing flow core is movably arranged in the water valve body, one end of the water stabilizing flow core is connected to the water stabilizing flow spring, and the other end is connected to the diaphragm assembly; the linkage valve comprises a linkage shaft, and the two ends of the linkage shaft are respectively connected to the air valve and the diaphragm assembly; the water valve also comprises an air outlet pressure regulating component, wherein the air outlet pressure regulating component is arranged at one end of the water stabilizing flow spring away from the water stabilizing flow core, and the air outlet pressure regulating component regulates the compression amount of the water stabilizing flow spring so as to regulate the air outlet pressure of the air outlet of the air valve when the starting water flow rate is reached.

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

[0009] The utility model provides a water-gas linkage valve, when not started, the water circuit is disconnected, no water enters the water valve body, the pressure on both sides of the diaphragm assembly is consistent, the thrust of the diaphragm assembly on the linkage shaft is zero, the air outlet of the gas valve is closed, and the gas does not circulate. When started, the water circuit is gradually opened, water flows into the water valve body, and the water stabilizes the flow through the water stabilizer core. The water stabilizer core pushes the linkage shaft through the diaphragm assembly, and the valve of the gas valve moves with the linkage shaft to open the air outlet. When the water flow reaches the starting water flow, the opening of the air outlet corresponds to an air outlet pressure. When the air outlet pressure is too high or too low, the air outlet pressure is adjusted by adjusting the compression of the water stabilizer spring through the air outlet pressure regulating member. The air pressure regulating member moves in the direction close to the water stabilizer spring, and the compression of the water stabilizer spring Increase, the thrust of the water stabilizing flow spring on the water stabilizing flow core increases, thereby increasing the moving distance of the water stabilizing flow core, and then increasing the opening of the air outlet, increasing the outlet pressure; the air pressure regulating part moves away from the water stabilizing flow spring, the compression of the water stabilizing flow spring decreases, and the thrust of the water stabilizing flow spring on the water stabilizing flow core decreases, thereby reducing the moving distance of the water stabilizing flow core, and then reducing the opening of the air outlet, reducing the outlet pressure; until the outlet pressure is adjusted to meet the requirements when the starting water flow rate is reached. The water-gas linkage valve realizes the adjustment of the outlet pressure when the starting water flow rate is reached, ensuring that the outlet pressure meets the requirements and avoiding ignition failure and water overheating.

[0010] In one of the embodiments, one end of the water valve body away from the linkage valve is set as a through end, and the air outlet pressure regulating member is inserted into the water valve body from the through end.

[0011] In one embodiment, the air outlet pressure regulating member includes a pressing portion and a fixing portion, the pressing portion is movably disposed in the water valve body, and one end of the pressing portion away from the fixing portion is connected to the water flow stabilizing spring, and the fixing portion is used to fix the pressing portion moved into place.

[0012] In one embodiment, the inner wall of the water valve body is provided with an internal thread, and the outer peripheral wall of the fixing part is provided with an external thread. The external thread cooperates with the internal thread, and screwing the fixing part can adjust the compression amount of the water flow stabilizing spring by the pressing part.

[0013] In one embodiment, the outer diameter of the fixed portion is larger than the outer diameter of the pressing portion, and a step surface is formed between the fixed portion and the pressing portion. One end of the water stabilizing flow spring is connected to the water stabilizing flow core, and the other end is sleeved on the outer periphery of the pressing portion and abuts against the step surface.

[0014] In one embodiment, a spring cavity is provided at one end of the water stabilizing flow core close to the pressing portion, the water stabilizing flow spring is provided in the spring cavity, and one end of the water stabilizing flow spring away from the pressing portion abuts against the bottom of the spring cavity.

[0015] In one of the embodiments, a sealing member is further provided between the outer peripheral wall of the fixing portion and the inner wall of the water valve body, and the sealing member is located at an end of the external thread away from the pressing portion.

[0016] In one of the embodiments, a sealing groove is provided on the outer peripheral wall of the fixing portion, and the sealing member is disposed in the sealing groove and elastically pressed against the inner wall of the water valve body.

[0017] In one embodiment, the water-gas linkage valve also includes a microswitch assembly, which includes a contact, a shift fork, a spring and a shift fork adjusting screw. The shift fork is rotatably connected to the shift fork shaft, and a trigger member is provided on the linkage shaft. The trigger member can trigger the contact through the shift fork as the linkage shaft moves. The spring member is connected to the shift fork, and the spring member is located between the shift fork and the contact. One end of the spring member is connected to the middle part of the shift fork. The shift fork adjusting screw is threadedly connected to one end of the shift fork away from the linkage shaft and then passes through the shift fork. The bottom end of the shift fork adjusting screw abuts against the other end of the spring member. The initial distance between the shift fork and the trigger member can be adjusted by adjusting the distance between the shift fork and the spring member by using the shift fork adjusting screw.

[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 to ensure that the gas device is successfully ignited when started and that the water temperature is appropriate, thereby improving the user experience. 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 an exploded schematic diagram of the air outlet pressure regulating component, the water flow stabilizing spring and the water flow stabilizing core in the water-gas linkage valve provided in the specific implementation mode of the utility model.

[0025] Description of labels:

[0026] 1. Water valve; 11. Water valve body; 111. Internal thread; 12. Water stabilizing flow core; 121. Spring chamber; 13. Diaphragm assembly; 14. Water stabilizing flow spring; 15. Air outlet pressure regulating member; 151. Fixing part; 1511. External thread; 1512. Sealing groove; 1513. Screwing handle matching groove; 152. Pressing part; 153. Step surface; 16. Sealing ring;

[0027] 2. linkage valve; 21. linkage shaft; 22. triggering member;

[0028] 3. Valve; 31. Valve body; 311. Valve seat; 32. Valve; 33. Valve outer spring; 34. Sealing gasket;

[0029] 4. Micro switch assembly; 41. Fork; 42. Contact; 43. Shrapnel; 44. Fork adjustment screw. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] like Figure 1 As shown, this embodiment provides a water-gas linkage valve 2, including a water valve 1, a linkage valve 2 and an air valve 3. The water valve 1 is connected to the air valve 3 through the linkage valve 2. The water valve 1 includes a water valve body 11, a water stabilizing flow core 12, a diaphragm assembly 13 and a water stabilizing flow spring 14. The water stabilizing flow core 12 is movably arranged in the water valve body 11. One end of the water stabilizing flow core 12 is connected to the water stabilizing flow spring 14, and the other end is connected to the diaphragm assembly 13. The linkage valve 2 includes a linkage shaft 21, and the air valve 3 includes an air valve body 31, a valve 32 and an air valve outer spring 33. A valve seat 311 is arranged in the air valve body 31. The air valve 32 is movably arranged in the air valve body 31. One end of the linkage shaft 21 is connected to the diaphragm assembly 13, and the other end is connected to the air valve 32. The end of the air valve 32 away from the linkage shaft 21 is connected to the air valve outer spring 33. After the water flows into the water valve body 11, the pressure on both sides of the diaphragm assembly 13 changes. The pressure on the water inlet side is larger. The water flow will drive the water stabilizer core 12 to move toward the diaphragm assembly 13, and then drive the linkage shaft 21 to move through the diaphragm assembly 13. The linkage shaft 21 drives the valve 32 to move, so that the valve 32 gradually disengages from the valve seat 311 to open the air outlet, and the gas can enter the combustion chamber through the air outlet for ignition and combustion.

[0035] When the water-gas linkage valve 2 is not started, the water circuit is disconnected, no water enters the water valve body 11, the pressure on both sides of the diaphragm assembly 13 is consistent, the thrust of the diaphragm assembly 13 on the linkage shaft 21 is zero, and under the action of the valve outer spring 33, the valve 32 and the valve seat 311 are sealed and matched through the sealing gasket 34 to close the air outlet, and the gas does not flow. When starting, the water circuit gradually opens, the water flows into the water valve body 11, and the water stabilizer core 12 stabilizes the flow. The water stabilizer core 12 pushes the linkage shaft 21 through the diaphragm assembly 13, and the valve 32 moves with the linkage shaft 21, gradually disengaging from the valve seat 311, opening the air outlet, and when the water flow reaches the starting water flow, the opening of the air outlet corresponds to an outlet pressure. If the outlet pressure is too large, it means that the air intake in the combustion chamber is large, the heat of combustion is large, and the water temperature will be too high, there is a risk of scalding or the thermostat is triggered to cause the gas device to shut down and affect the experience; if the outlet pressure is too small, it is easy to cause ignition failure.

[0036] In order to solve the above technical problems, the water valve 1 provided in this embodiment also includes an air outlet pressure regulating component 15, which is arranged at one end of the water stabilizing flow spring 14 away from the water stabilizing flow core 12. The air outlet pressure regulating component 15 adjusts the compression amount of the water stabilizing flow spring 14 to adjust the air outlet pressure of the air valve 3 when the starting water flow rate is reached.

[0037] When the water flow reaches the starting flow, if the outlet pressure does not meet the requirements, the outlet pressure of the air outlet can be adjusted by adjusting the compression of the water stabilizing spring 14 through the outlet pressure regulating member 15. The air pressure regulating member moves in the direction close to the water stabilizing spring 14, the compression of the water stabilizing spring 14 increases, and the thrust of the water stabilizing spring 14 acting on the water stabilizing core 12 increases, thereby increasing the moving distance of the water stabilizing core 12, thereby increasing the opening of the air outlet and increasing the outlet pressure; the air pressure regulating member moves in the direction away from the water stabilizing spring 14, the compression of the water stabilizing spring 14 decreases, and the thrust of the water stabilizing spring 14 acting on the water stabilizing core 12 decreases, thereby reducing the moving distance of the water stabilizing core 12, thereby reducing the opening of the air outlet and reducing the outlet pressure; until the outlet pressure is adjusted to meet the requirements when the starting water flow is reached. The water-gas linkage valve 2 realizes the adjustment of the outlet pressure when the starting water flow is reached, ensures that the outlet pressure meets the requirements, and avoids ignition failure and water overheating.

[0038] The water-gas linkage valve 2 further comprises a micro switch assembly 4, which comprises a contact 42, a fork 41, a spring 43 and a fork adjusting screw 44. The fork 41 is rotatably connected to the fork shaft, and a trigger 22 is arranged on the linkage shaft 21. The trigger 22 can trigger the contact 42 through the fork 41 as the linkage shaft 21 moves. The end of the fork 41 close to the linkage shaft 21 is located on the side of the trigger 22 close to the valve 32 or close to the diaphragm assembly 13. The spring 43 is connected to the fork 41, and the spring 43 is located between the fork 41 and the contact 42. One end of the spring 43 is connected to the middle of the fork 41. The fork adjusting screw 44 is threadedly connected to the end of the fork 41 away from the linkage shaft 21, and then passes through the fork 41, and the bottom end of the fork adjusting screw 44 abuts against the other end of the spring 43. The initial distance between the fork 41 and the trigger 22 can be adjusted by adjusting the distance between the fork 41 and the spring 43 through the fork adjusting screw 44. When the water-gas linkage valve 2 is not started, there is a certain distance between the fork 41 and the trigger 22, which is the initial distance. After the water-gas linkage valve 2 is started, the water-stabilizing flow core 12 moves toward the diaphragm assembly 13, and the water-stabilizing flow core 12 drives the linkage shaft 21 to move through the diaphragm assembly 13. During the movement of the linkage shaft 21, the trigger 22 on the linkage shaft 21 gradually abuts against the fork 41. After the fork 41 abuts against the trigger 22, the linkage shaft 21 continues to move, and the trigger 22 drives the fork 41 to rotate around the fork shaft, which can drive the spring 43 at the other end of the fork 41 to rotate until it contacts the contact 42. After the contact 42 of the microswitch assembly 4 is triggered, the solenoid valve on the gas passage opens, so that the gas source can provide gas to the gas valve body 31, and the gas enters the combustion chamber through the gas outlet for combustion.

[0039] The specific structure and connection relationship of the micro switch assembly 4 are already prior art, which is not the main invention of this embodiment and will not be repeated here.

[0040] After adjusting the outlet pressure, if the fork 41 can trigger the contact 42 through the spring 43 within the starting water flow range, it means that the initial spacing between the fork 41 and the trigger 22 is appropriate, and there is no need to adjust the initial spacing through the fork adjusting screw 44. If the starting water flow reaches the upper limit of the starting water flow range, and the contact 42 of the micro switch assembly 4 has not been triggered, it means that the initial spacing is too large, and it is necessary to turn the fork adjusting screw 44 to increase the distance between the fork 41 and the spring 43, and then reduce the initial spacing between the fork 41 and the trigger 22, until the contact 42 of the micro switch assembly 4 can be triggered within the starting water flow range. If the contact 42 of the micro switch assembly 4 is triggered before the starting water flow reaches the lower limit of the starting water flow range, it means that the initial spacing is too small, and it is necessary to turn the fork adjusting screw 44 to reduce the distance between the fork 41 and the spring 43, and then increase the initial spacing between the fork 41 and the trigger 22, until the contact 42 of the micro switch assembly 4 is triggered within the starting water flow range.

[0041] In one embodiment, if Figure 2 As shown, the end of the water valve body 11 away from the linkage valve 2 is set as a through end, and the air outlet pressure regulating member 15 is inserted into the water valve body 11 from the through end to achieve the installation of the air outlet pressure regulating member 15. The air outlet pressure regulating member 15 is inserted into the water valve body 11 from the end of the water valve body 11 away from the linkage valve 2. The air outlet pressure regulating member 15 can not only play the role of adjusting the air outlet pressure, but also can block the water valve body 11 to prevent water leakage in the water valve body 11.

[0042] In one embodiment, the outlet pressure regulating member 15 includes a pressing portion 152 and a fixing portion 151. The pressing portion 152 is movably disposed in the water valve body 11, and one end of the pressing portion 152 away from the fixing portion 151 is connected to the water flow stabilizing spring 14. The fixing portion 151 is used to fix the moving pressing portion 152. When adjusting the outlet pressure, the compression amount of the water flow stabilizing spring 14 can be adjusted by moving the pressing portion 152. When the outlet pressure is reached to start the water flow, the pressing portion 152 is fixed by the fixing portion 151.

[0043] In one embodiment, the inner wall of the water valve body 11 is provided with an internal thread 111, and the outer peripheral wall of the fixing portion 151 is provided with an external thread 1511, and the external thread 1511 cooperates with the internal thread 111, and screwing the fixing portion 151 can adjust the compression amount of the water flow stabilizing spring 14 by the pressing portion 152. The fixing portion 151 can adjust the outlet pressure by adjusting the compression amount of the water flow stabilizing spring 14 by the pressing portion 152 through the threaded connection with the water valve body 11, and after adjusting the outlet pressure, the position of the pressing portion 152 can be fixed to avoid changes in the compression amount of the water flow stabilizing spring 14.

[0044] In other embodiments, the outer periphery of the pressing portion 152 can also be slidably matched with the inner wall of the water valve body 11, the bottom end of the pressing portion 152 is connected to the water flow stabilizing spring 14, the fixing portion 151 is a fixing screw, and the peripheral wall of the water valve body 11 is provided with a limiting hole extending axially. After the outlet pressure is adjusted, the fixing screw passes through the limiting hole and is screwed to the pressing portion 152 to fix the position of the pressing portion 152.

[0045] In one embodiment, the fixing portion 151 and the pressing portion 152 are provided as an integral part, the outer diameter of the fixing portion 151 is larger than the outer diameter of the pressing portion 152, a step surface 153 is formed between the fixing portion 151 and the pressing portion 152, one end of the water stabilizing flow spring 14 is connected to the water stabilizing flow core 12, and the other end is sleeved on the outer periphery of the pressing portion 152 and abuts against the step surface 153. By sleeve-arranging the water stabilizing flow spring 14 on the outer periphery of the pressing portion 152, it is possible to ensure that the direction of the thrust of the water stabilizing flow spring 14 acting on the water stabilizing flow core 12 will not deviate from the axial direction of the water stabilizing flow core 12 during the process of the pressing portion 152 compressing the water stabilizing flow spring 14, thereby avoiding the water stabilizing flow core 12 from being offset in the water valve body 11 due to the offset of the thrust, thereby affecting the flow stabilizing effect.

[0046] Furthermore, a spring cavity 121 is provided at one end of the water stabilizing flow core 12 close to the pressing portion 152, and a water stabilizing flow spring 14 is provided in the spring cavity 121, and one end of the water stabilizing flow spring 14 away from the pressing portion 152 abuts against the bottom of the spring cavity 121. By providing the water stabilizing flow spring 14 in the spring cavity 121, it is further ensured that in the process of the pressing portion 152 compressing the water stabilizing flow spring 14, the axis of the water stabilizing flow spring 14, the axis of the water stabilizing flow core 12 and the axis of the pressing portion 152 coincide, and it is ensured that the water stabilizing flow core 12 will not deviate in the water valve body 11.

[0047] In order to ensure the sealing of the water valve body 11 and avoid water leakage, a sealing member is further provided between the outer peripheral wall of the fixing portion 151 and the inner wall of the water valve body 11, and the sealing member is located at the end of the external thread 1511 away from the pressing portion 152. The sealing member is provided at the outermost end where the fixing portion 151 and the water valve body 11 cooperate, so that water can be prevented from leaking through the gap between the internal thread 111 and the external thread 1511 during the adjustment process, and the sealing effect is better.

[0048] Specifically, a sealing groove 1512 is provided on the outer peripheral wall of the fixing portion 151, and a sealing member is provided in the sealing groove 1512 and elastically pressed against the inner wall of the water valve body 11. The sealing groove 1512 is located at one end of the external thread 1511 away from the pressing portion 152, and the sealing member is a sealing ring 16, which is provided in the sealing groove 1512 and elastically pressed against the inner wall of the water valve body 11. In the process of screwing the fixing portion 151, the fixing portion 151 moves relative to the water valve body 11, and the sealing ring 16 always abuts against the inner wall of the water valve body 11, ensuring that the water flow will not leak, thereby avoiding the problem of inaccurate adjustment of the outlet pressure caused by the water leakage affecting the starting water flow in the process of adjusting the outlet pressure.

[0049] In one embodiment, in order to make the screwing of the fixing part 151 more convenient and labor-saving when adjusting the outlet pressure, a screwing handle matching groove 1513 is provided on the end surface of the fixing part 151 away from the pressing part 152. One end of the screwing handle is matched with the screwing handle matching groove 1513, so that the fixing part 151 can be screwed by screwing the screwing handle, which is more convenient and labor-saving.

[0050] This embodiment also provides a gas device, including the above-mentioned water-gas linkage valve 2, which can ensure that the gas device is successfully ignited when started and ensure that the water temperature is appropriate, thereby improving the user experience.

[0051] 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.

[0052] 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), a linkage valve (2) and an air valve (3), wherein the water valve (1) comprises a water valve body (11), a water stabilizing flow core (12), a diaphragm assembly (13) and a water stabilizing flow spring (14), wherein the water stabilizing flow core (12) is movably arranged in the water valve body (11), one end of the water stabilizing flow core (12) is connected to the water stabilizing flow spring (14), and the other end is connected to the diaphragm assembly (13); the linkage valve (2) comprises a linkage shaft (21), and the two ends of the linkage shaft (21) are respectively connected to the air valve (3) and the diaphragm assembly (13), characterized in that: The water valve (1) further comprises an air outlet pressure regulating member (15), wherein the air outlet pressure regulating member (15) is arranged at one end of the water flow stabilizing spring (14) away from the water flow stabilizing core (12), and the air outlet pressure regulating member (15) regulates the compression amount of the water flow stabilizing spring (14) so ​​as to regulate the air outlet pressure of the air outlet of the air valve (3) when the starting water flow rate is reached.

2. The water-gas linkage valve according to claim 1, characterized in that: One end of the water valve body (11) away from the linkage valve (2) is arranged as a through end, and the air outlet pressure regulating member (15) is inserted into the water valve body (11) from the through end.

3. The water-gas linkage valve according to claim 2, characterized in that: The air outlet pressure regulating member (15) comprises a pressing portion (152) and a fixing portion (151); the pressing portion (152) is movably arranged in the water valve body (11); and one end of the pressing portion (152) away from the fixing portion (151) is connected to the water flow stabilizing spring (14); and the fixing portion (151) is used to fix the pressing portion (152) that has been moved into position.

4. The water-gas linkage valve according to claim 3, characterized in that: The inner wall of the water valve body (11) is provided with an internal thread (111), and the outer peripheral wall of the fixing portion (151) is provided with an external thread (1511). The external thread (1511) cooperates with the internal thread (111), and the amount of compression of the water flow stabilizing spring (14) by the pressing portion (152) can be adjusted by screwing the fixing portion (151).

5. The water-gas linkage valve according to claim 4, characterized in that: The outer diameter of the fixing portion (151) is greater than the outer diameter of the pressing portion (152); a step surface (153) is formed between the fixing portion (151) and the pressing portion (152); one end of the water stabilizing spring (14) is connected to the water stabilizing core (12); and the other end is sleeved on the outer periphery of the pressing portion (152) and abuts against the step surface (153).

6. The water-gas linkage valve according to claim 5, characterized in that: A spring cavity (121) is provided at one end of the water stabilizing flow core (12) close to the pressing portion (152), the water stabilizing flow spring (14) is arranged in the spring cavity (121), and one end of the water stabilizing flow spring (14) away from the pressing portion (152) is in contact with the bottom of the spring cavity (121).

7. The water-gas linkage valve according to claim 4, characterized in that: A sealing member is also provided between the outer peripheral wall of the fixing portion (151) and the inner wall of the water valve body (11), and the sealing member is located at an end of the external thread (1511) away from the pressing portion (152).

8. The water-gas linkage valve according to claim 7, characterized in that: The outer peripheral wall of the fixing portion (151) is provided with a sealing groove (1512), and the sealing member is arranged in the sealing groove (1512) and elastically presses against the inner wall of the water valve body (11).

9. The water-gas linkage valve according to any one of claims 1 to 8, characterized in that: The water-gas linkage valve further comprises a micro switch assembly (4), the micro switch assembly (4) comprising a contact (42), a shift fork (41), a spring sheet (43) and a shift fork adjusting screw (44), the shift fork (41) being rotatably connected to the shift fork shaft, a triggering member (22) being arranged on the linkage shaft (21), the triggering member (22) being able to trigger the contact (42) through the shift fork (41) when the triggering member (22) moves with the linkage shaft (21), the spring sheet (43) being connected to the shift fork (41), and the spring sheet (43) being located at the shift fork (41). ) and the contact (42), one end of the spring sheet (43) is connected to the middle of the shift fork (41), the shift fork adjusting screw (44) is threadedly connected to one end of the shift fork (41) away from the linkage shaft (21) and then passes through the shift fork (41), the bottom end of the shift fork adjusting screw (44) abuts against the other end of the spring sheet (43), and the initial distance between the shift fork (41) and the trigger member (22) can be adjusted by adjusting the distance between the shift fork (41) and the spring sheet (43) through the shift fork adjusting screw (44).

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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