Gas valve assembly and gas appliance

Abstract

The utility model relates to gas equipment technical field discloses a kind of gas valve assembly and gas equipment, gas valve assembly includes distributor and gas valve, distributor includes distributor main body, integrally arranged with mounting connector on distributor main body, and the inside of mounting connector and distributor main body is communicated;Gas valve includes valve main body, and cavity structure is arranged in valve main body, and valve core for plugging and opening cavity structure is arranged in cavity structure, and connecting connector is integrally arranged on valve main body, and connecting connector is detachably connected with mounting connector, and the cavity structure of valve main body is communicated with mounting connector. The integrated gas valve does not need to be connected with distributor by additional setting connection structure, not only simplifies structure, improves assembly efficiency, reduces maintenance and assembly difficulty, and also does not need to consider the sealing between connection structure and distributor, reduces the risk of gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, and in particular to a gas valve assembly and a gas equipment. Background Technology

[0002] The gas valve assembly plays a role in controlling the gas flow and stabilizing the gas pressure during the operation of the gas water heater, so as to achieve the stability of the required gas quantity and water temperature during the heating operation.

[0003] Existing gas valve assemblies require an additional connection structure to assemble the distributor and gas valve. During assembly, a valve cover needs to be installed on the gas valve and connected to the distributor. To ensure airtightness between the valve cover and the distributor, several sealing rings are required. Furthermore, to ensure a secure connection, mounting holes need to be drilled in the distributor, and the valve cover is bolted on. This process is not only complex and inefficient, but also increases the risk of leakage. Utility Model Content

[0004] The purpose of this utility model is to propose a gas valve assembly and a gas water heater, which solves the technical problem that in the prior art, the gas valve is connected to the distributor through an additional connection structure, which not only makes the structure complex and the assembly efficiency low, but also makes maintenance and assembly difficult, and increases the risk of leakage.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a gas valve assembly, including:

[0007] A distributor, comprising a distributor body, wherein an integral mounting connector is provided on the distributor body, and the mounting connector is connected to the interior of the distributor body;

[0008] A gas valve includes a valve body, a cavity structure inside the valve body, a valve core for sealing and opening the cavity structure inside the cavity structure, and a connecting joint integrally provided on the valve body. The connecting joint is detachably connected to the mounting joint, and the cavity structure of the valve body is connected to the mounting joint.

[0009] The gas valve assembly includes a distributor body and an integral mounting connector on the distributor body. The gas valve includes a valve body and an integral connecting connector on the valve body. The connecting connector and the mounting connector are detachably connected. This integrated gas valve does not require an additional connection structure to connect to the distributor, which not only simplifies the structure and improves assembly efficiency, but also reduces maintenance and assembly difficulty. Furthermore, it eliminates the need to consider the sealing between the connection structure and the distributor, reducing the risk of gas leakage.

[0010] As a preferred embodiment of the above-mentioned gas valve assembly, the mounting connector includes:

[0011] The system includes a connecting pipe and an installation connector. One end of the connecting pipe is connected to the main body of the distributor, and the other end of the connecting pipe is provided with the installation connector. The connecting pipe is connected to the installation connector, and the installation connector is detachably connected to the connecting joint.

[0012] The installation connector connects the distributor body and the installation connector via a connecting pipe. The installation connector is detachably connected to the connection connector via the installation connector. The installation connector has a simple structure and is easy to manufacture.

[0013] As a preferred embodiment of the above-mentioned gas valve assembly, a groove is provided on the side of the mounting connector facing the connecting joint, and a through hole connected to the connecting pipe is provided at the bottom of the groove. A support member is provided in the groove and circumferentially located in the through hole, and the valve core in the valve body can abut against the support member.

[0014] By using the support components, when the valve core abuts against the support components, the gas can enter the distributor through the space between the support components, thus preventing the valve core from blocking the distributor and causing the gas to be unable to flow.

[0015] As a preferred embodiment of the above-mentioned gas valve assembly, multiple support members are provided, and the multiple support members are spaced apart circumferentially along the through hole.

[0016] Multiple support members are spaced apart circumferentially along the through hole, which can provide better support and make the valve core support more stable.

[0017] As a preferred embodiment of the above-mentioned gas valve assembly, the distributor body includes:

[0018] The housing includes a first cavity connected to the mounting joint, and a second cavity and a third cavity respectively disposed on both sides of the first cavity, wherein the first cavity, the second cavity and the third cavity are all connected to a plurality of nozzles;

[0019] A first flow channel is provided to connect the first cavity and the second cavity, and a first control valve is provided in the first flow channel to control its opening and closing.

[0020] The second flow channel connects the first cavity and the third cavity, and a second control valve is provided in the second flow channel to control its opening and closing.

[0021] The main body of the distributor is provided with a first cavity and a second cavity and a third cavity located on both sides of the first cavity. Each cavity is connected to several nozzles. A first flow channel connects the first cavity and the second cavity, and the opening and closing of the first flow channel is controlled by a first control valve. A second flow channel connects the first cavity and the third cavity, and the opening and closing of the second flow channel is controlled by a second control valve. This enables multi-stage exhaust flow regulation to adapt to different water use conditions and adjust the output flow of the gas to meet the gas load requirements under different water use conditions.

[0022] As a preferred embodiment of the above-mentioned gas valve assembly, the first flow channel includes the following components connected sequentially from the first cavity to the second cavity: first flow channel section A, first accommodating cavity, and first flow channel section B.

[0023] The first control valve includes a first sealing member adapted to the air inlet setting of the first flow channel B section and movably accommodated in the first accommodating cavity. The first sealing member is blocked at or spaced from the air inlet of the first flow channel B section to switch the on / off state of the first flow channel.

[0024] The first flow channel connects the first cavity and the second cavity through the first flow channel A section, the first accommodating cavity, and the first flow channel B section. The first sealing element of the first control valve is moved to block or separate the air inlet of the first flow channel B section, thereby switching the on / off state of the first flow channel.

[0025] As a preferred embodiment of the above-mentioned gas valve assembly, the first flow channel A section gradually tilts away from the first cavity from the end connected to the first cavity to the end connected to the first accommodating cavity.

[0026] The above-mentioned arrangement shortens the communication distance between the first cavity and the first receiving cavity; moreover, the inclined arrangement of the first flow channel A section facilitates the core-pulling process, reduces the number of sealing end faces, and lowers the risk of leakage.

[0027] As a preferred embodiment of the above-mentioned gas valve assembly, the second flow channel includes the following sections sequentially connected from the first cavity to the third cavity: second flow channel section A, second accommodating cavity, and second flow channel section B.

[0028] The second control valve includes a second sealing member adapted to the air inlet setting of the second flow channel B section and movably accommodated in the second accommodating cavity. The second sealing member blocks or is spaced from the air inlet of the second flow channel B section to switch the on / off state of the second flow channel.

[0029] The second flow channel connects the first cavity and the third cavity through the second flow channel A section, the second accommodating cavity, and the second flow channel B section. The second sealing element of the second control valve is moved to block or separate the air inlet of the second flow channel B section, thereby switching the on / off state of the second flow channel.

[0030] As a preferred embodiment of the above-mentioned gas valve assembly, the second flow channel A section gradually slopes away from the first cavity from the end connected to the first cavity to the end connected to the second accommodating cavity.

[0031] The above-mentioned arrangement shortens the communication distance between the first cavity and the second accommodating cavity; moreover, the inclined second flow channel A section facilitates the core-pulling process, reduces the number of sealing end faces, and lowers the risk of leakage.

[0032] This utility model also provides a gas device, including the gas valve assembly described above.

[0033] This gas appliance simplifies its structure and reduces the risk of gas leakage through the aforementioned gas valve assembly.

[0034] The beneficial effects of this utility model are:

[0035] The gas valve assembly proposed in this utility model includes a distributor body and an integral mounting connector on the distributor body, and a gas valve body and a connecting connector integrally mounted on the valve body. The connecting connector and the mounting connector are detachably connected. This integrated gas valve does not require an additional connecting structure to connect to the distributor, which not only simplifies the structure, improves assembly efficiency, and reduces maintenance and assembly difficulty, but also eliminates the need to consider the sealing between the connecting structure and the distributor, thus reducing the risk of gas leakage.

[0036] The gas appliance proposed in this invention simplifies the structure and reduces the risk of gas leakage through the aforementioned gas valve assembly. Attached Figure Description

[0037] Figure 1 This is a structural schematic diagram of the gas valve assembly provided by this utility model;

[0038] Figure 2 This is an exploded view of the gas valve assembly provided by this utility model;

[0039] Figure 3This is a cross-sectional view of the gas valve assembly provided by this utility model;

[0040] Figure 4 This is a first structural schematic diagram of the dispenser provided by this utility model;

[0041] Figure 5 This is a schematic diagram of the second structure of the dispenser provided by this utility model;

[0042] Figure 6 This is a cross-sectional view of the dispenser provided by this utility model from a first angle;

[0043] Figure 7 This is a cross-sectional view of the dispenser provided by this utility model from a second angle;

[0044] Figure 8 This is a cross-sectional view of a partial structure of the dispenser provided by this utility model;

[0045] Figure 9 This is a schematic diagram of the first structure of the gas valve provided by this utility model after removing the switching valve;

[0046] Figure 10 This is a schematic diagram of the second structure of the gas valve provided by this utility model after removing the switching valve;

[0047] Figure 11 This is a schematic diagram of the third structure of the gas valve provided by this utility model after removing the switching valve;

[0048] Figure 12 This is a schematic diagram of the fourth structure of the gas valve provided by this utility model after removing the switching valve;

[0049] Figure 13 This is a cross-sectional view of the gas valve provided by this utility model after removing the on / off valve.

[0050] In the picture:

[0051] 1. Distributor; 11. Distributor body; 110. Nozzle; 111. First cavity; 112. Second cavity; 113. Third cavity; 114. First flow channel; 1141. First flow channel section A; 1142. First receiving cavity; 1143. Second flow channel section B; 115. First control valve; 116. Second flow channel; 1161. Second flow channel section A; 1162. Second receiving cavity; 1163. Second flow channel section B; 117. Second control valve; 118. First connector; 119. Second connector; 12. Mounting joint; 121. Connecting pipe; 122. Mounting connector; 1221. First mounting hole; 1222. Groove; 1223. Through hole; 1224. Support; 13. First fixing bracket; 14. Second fixing bracket; 141. Fixing hole;

[0052] 2. Gas valve; 21. Valve body; 211. Valve core; 22. Connecting joint; 221. Second mounting hole; 23. Inlet device; 24. Switch valve;

[0053] 3. Locking components. Detailed Implementation

[0054] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0055] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0058] This embodiment provides a gas valve assembly that can be used in gas appliances, such as gas water heaters. This gas water heater can be a zero-cold-water water heater or other common gas water heaters. In other embodiments, the gas valve assembly can also be applied to other devices with gas heating requirements, such as gas ovens; no specific limitation is made here. Figures 1-3As shown, the gas valve assembly includes a distributor 1 and a gas valve 2. The distributor 1 includes a distributor body 11, on which an integral mounting connector 12 is provided, and the mounting connector 12 is connected to the interior of the distributor body 11. The gas valve 2 includes a valve body 21, on which a cavity structure is provided. A valve core 211 for sealing and opening the cavity structure is provided inside the cavity structure. A connecting connector 22 is integrally provided on the valve body 21, and the connecting connector 22 is detachably connected to the mounting connector 12. The cavity structure of the valve body 21 is connected to the mounting connector 12.

[0059] The gas valve assembly includes a distributor 1 comprising a distributor body 11 and an integral mounting connector 12 disposed on the distributor body 11. The gas valve 2 comprises a valve body 21 and a connection connector 22 integrally disposed on the valve body 21. The connection connector 22 is detachably connected to the mounting connector 12. This integrated gas valve 2 has a simpler structure. The gas valve 2 does not need to be connected to the distributor 1 through an additional connection structure. This not only simplifies the structure and improves assembly efficiency, but also reduces the difficulty of maintenance and assembly. Furthermore, it eliminates the need to consider the sealing between the connection structure and the distributor 1, thus reducing the risk of gas leakage.

[0060] In this embodiment, a first fixing frame 13 is provided at one end of the distributor body 11, and a second fixing frame 14 is provided at the other end. The first fixing frame 13 can be snapped or plugged into other structures for installation. The second fixing frame 14 is provided with fixing holes 141, through which fixing members pass to fix other structures. In other embodiments, the structure used to fix the distributor body 11 is not limited to the above-described fixing method, as long as it can fix the distributor body 11 to other structures.

[0061] like Figure 4 As shown, the mounting connector 12 includes a connecting pipe 121 and a mounting connector 122. One end of the connecting pipe 121 is connected to the distributor body 11, and the other end of the connecting pipe 121 is provided with the mounting connector 122. The connecting pipe 121 and the mounting connector 122 are connected, and the mounting connector 122 is detachably connected to the connecting connector 22. The mounting connector 12 connects the distributor body 11 and the mounting connector 122 through the connecting pipe 121, and is detachably connected to the connecting connector 22 through the mounting connector 122. The mounting connector 12 has a simple structure and is easy to manufacture. In this embodiment, the connecting pipe 121 is vertically connected to the distributor body 11. The connecting pipe 121 is connected at the middle position of the distributor body 11.

[0062] Optionally, such as Figure 2 As shown, both the mounting connector 122 and the connecting joint 22 are plate-shaped structures, and their sizes and outlines are identical. In this embodiment, both the mounting connector 122 and the connecting joint 22 are rectangular structures, which provide a large contact area and ensure a more secure fixation.

[0063] Optionally, such as Figure 4 As shown, the mounting connector 122 is provided with a plurality of first mounting holes 1221, such as... Figure 2 As shown, the connecting connector 22 is provided with second mounting holes 221 corresponding to the first mounting holes 1221. The gas valve assembly also includes a locking member 3, which passes through the corresponding first mounting holes 1221 and second mounting holes 221 to connect the mounting connector 122 and the connecting connector 22. The mounting connector 122 and the connecting connector 22 are detachably connected by the locking member 3 engaging with the mounting holes. This not only has a simple structure and is easy to manufacture, but also makes disassembly and assembly relatively convenient.

[0064] In this embodiment, first mounting holes 1221 are provided at each of the four apex positions of the mounting connector 122, and second mounting holes 221 corresponding to the first mounting holes 1221 are provided at each of the four apex positions of the connector 22. The mounting connector 122 and the connector 22 are securely fixed by the locking member 3 passing through the corresponding first mounting holes 1221 and second mounting holes 221. In other embodiments, the number of first mounting holes 1221 is not limited to four, and the mounting position is not limited to the apex positions, as long as the mounting connector 122 and the connector 22 can be securely fixed.

[0065] Optionally, such as Figure 5 As shown, a groove 1222 is provided on the side of the mounting connector 122 facing the connecting joint 22. A through hole 1223 communicating with the connecting pipe 121 is provided at the bottom of the groove 1222. In this embodiment, the groove 1222 has a circular structure, and the inner diameter of the groove 1222 is larger than the diameter of the through hole 1223. A support member 1224 is provided circumferentially within the groove 1222 and located within the through hole 1223. The valve core 211 (e.g., ...) inside the valve body 21... Figure 2 (As shown) It can abut against the support member 1224. With the support member 1224, when the valve core 211 abuts against the support member 1224, the gas can enter the distributor 1 through the space between the support members 1224, avoiding the situation where the valve core 211 blocks the distributor 1 and the gas cannot flow.

[0066] Optionally, multiple support members 1224 are provided, and the multiple support members 1224 are arranged at intervals along the circumference of the through hole 1223, which can play a better supporting role and provide more stable support for the valve core 211.

[0067] In this embodiment, four support members 1224 are provided, and the four support members 1224 are equally spaced along the circumferential direction of the through hole 1223. Furthermore, the support members 1224 extend radially along the through hole 1223, forming a strip-shaped structure to support the valve core 211. In other embodiments, the number of support members 1224 is not limited to four; it can also be one, two, three, five, or more. The shape of the support member 1224 is not limited to a strip-shaped structure; it can be a semi-circular shape, an arc shape, etc. When only one support member 1224 is provided, it can be an arc-shaped structure surrounding the through hole 1223, a ring structure with a notch, etc.

[0068] Optionally, such as Figure 6 and Figure 7 As shown, the dispenser body 11 includes a housing, a first flow channel 114, and a second flow channel 116. A first fixing bracket 13 is provided at one end of the housing, and a second fixing bracket 14 is provided at the other end. A nozzle 110 is disposed on the housing (see [reference]). Figure 8 The housing includes a first cavity 111 connected to the mounting joint 12, and a second cavity 112 and a third cavity 113 respectively disposed on both sides of the first cavity 111. The first cavity 111, the second cavity 112 and the third cavity 113 are all connected to a plurality of nozzles 110. A first flow channel 114 connects the first cavity 111 and the second cavity 112, and a first control valve 115 is provided in the first flow channel 114 to control its opening and closing. A second flow channel 116 connects the first cavity 111 and the third cavity 113, and a second control valve 117 is provided in the second flow channel 116 to control its opening and closing, thereby realizing multi-stage exhaust flow regulation to adapt to different water use conditions, adjust the output flow of gas, and meet the gas load requirements under different water use conditions.

[0069] Specifically, the first flow channel 114 includes the following components sequentially connected from the first cavity 111 to the second cavity 112: a first flow channel A section 1141, a first receiving cavity 1142, and a first flow channel B section 1143. The first control valve 115 includes a first sealing element adapted to the air inlet of the first flow channel B section 1143 and movably housed in the first receiving cavity 1142. The first sealing element blocks or is spaced from the air inlet of the first flow channel B section 1143 to switch the on / off state of the first flow channel 114. The first flow channel 114 connects the first cavity 111 and the second cavity 112 through the first flow channel A section 1141, the first receiving cavity 1142, and the first flow channel B section 1143. The first control valve 115 blocks or is spaced from the air inlet of the first flow channel B section 1143 by moving the first sealing element, thereby switching the on / off state of the first flow channel 114.

[0070] like Figure 6As shown, the first flow channel A section 1141 gradually slopes away from the first cavity 111 from the end connected to the first cavity 111 towards the end connected to the first receiving cavity 1142. This arrangement shortens the communication distance between the first cavity 111 and the first receiving cavity 1142; moreover, the inclined arrangement of the first flow channel A section 1141 facilitates the core-pulling process, reduces the number of sealing end faces, and lowers the risk of leakage.

[0071] like Figure 6 As shown, the second flow channel 116 includes the following components sequentially connected from the first cavity 111 to the third cavity 113: second flow channel A section 1161, second receiving cavity 1162, and second flow channel B section 1163. The second control valve 117 includes a second sealing element adapted to the air inlet of the second flow channel B section 1163 and movably housed in the second receiving cavity 1162. The second sealing element blocks or is spaced from the air inlet of the second flow channel B section 1163 to switch the on / off state of the second flow channel 116. The second flow channel 116 connects the first cavity 111 and the third cavity 113 through the second flow channel A section 1161, the second receiving cavity 1162, and the second flow channel B section 1163. The second control valve 117 moves to block or is spaced from the air inlet of the second flow channel B section 1163, thereby switching the on / off state of the second flow channel 116. The first control valve 115 and the second control valve 117 are both perpendicular to the housing and the connecting pipe 121, and the moving directions of the first sealing member and the second sealing member are both perpendicular to the housing and the connecting pipe 121.

[0072] Preferably, the second flow channel A section 1161 gradually slopes away from the first cavity 111 from the end connected to the first cavity 111 towards the end connected to the second accommodating cavity 1162. This arrangement shortens the communication distance between the first cavity 111 and the second accommodating cavity 1162; moreover, the inclined second flow channel A section 1161 facilitates the core-pulling process during production, reduces the number of sealing end faces, and lowers the risk of leakage.

[0073] Optionally, the valve body 21 has a first connector 118 for mounting and connecting the first control valve 115 and a second connector 119 for mounting the second control valve 117 on its housing. In this embodiment, the first connector 118 and the first control valve 115, and the second connector 119 and the second control valve 117, are connected by a fastener. In other embodiments, the connection method between the first connector 118 and the first control valve 115, and between the second connector 119 and the second control valve 117, is not limited to the fastener connection method described above, and may also be other methods, which are not specifically limited here.

[0074] Optionally, such as Figures 9-13As shown, the gas valve 2 also includes an air intake device 23, which includes an air intake channel connected to the cavity structure of the valve body 21, and a switching valve 24 disposed on the air intake channel and capable of controlling the opening and closing of the air intake channel. In this embodiment, the switching valve 24 is a solenoid valve, which facilitates automatic control.

[0075] Optionally, the air intake channel can be a single integrated structure or a series of separate connected structures.

[0076] This embodiment also provides a gas appliance including the gas valve assembly described above. The gas appliance simplifies the structure and reduces the risk of gas leakage through the gas valve assembly described above.

[0077] Optionally, the gas appliance can be a gas water heater, which can be a zero-cold-water water heater or other ordinary gas water heaters. The gas appliance is not limited to gas water heaters, but can also be used in other devices with gas heating requirements, such as gas ovens, without specific limitations here.

[0078] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gas valve assembly, characterized in that, include: Distributor (1), the distributor (1) includes a distributor body (11), the distributor body (11) is integrally provided with an installation connector (12), the installation connector (12) is connected to the interior of the distributor body (11); Gas valve (2), the gas valve (2) includes a valve body (21), the valve body (21) is provided with a cavity structure, the cavity structure is provided with a valve core (211) for sealing and opening the cavity structure, the valve body (21) is integrally provided with a connecting joint (22), the connecting joint (22) is detachably connected to the mounting joint (12), and the cavity structure of the valve body (21) is connected to the mounting joint (12).

2. The gas valve assembly according to claim 1, characterized in that, The mounting connector (12) includes: A connecting pipe (121) and an installation connector (122) are provided. One end of the connecting pipe (121) is connected to the main body (11) of the distributor, and the other end of the connecting pipe (121) is provided with the installation connector (122). The connecting pipe (121) is connected to the installation connector (122), and the installation connector (122) is detachably connected to the connecting joint (22).

3. The gas valve assembly according to claim 2, characterized in that, The mounting connector (122) has a groove (1222) on the side facing the connector (22). The bottom of the groove (1222) has a through hole (1223) that communicates with the connecting pipe (121). A support member (1224) is provided in the groove (1222) and around the through hole (1223). The valve core (211) in the valve body (21) can abut against the support member (1224).

4. The gas valve assembly according to claim 3, characterized in that, Multiple support members (1224) are provided, and the multiple support members (1224) are arranged at circumferential intervals along the through hole (1223).

5. The gas valve assembly according to any one of claims 1-4, characterized in that, The dispenser body (11) includes: The housing includes a first cavity (111) connected to the mounting joint (12), and a second cavity (112) and a third cavity (113) respectively disposed on both sides of the first cavity (111). The first cavity (111), the second cavity (112) and the third cavity (113) are all connected to a plurality of nozzles (110). The first flow channel (114) is used to connect the first cavity (111) and the second cavity (112), and a first control valve (115) is provided in the first flow channel (114) to control its opening and closing. The second flow channel (116) is connected to the first cavity (111) and the third cavity (113), and a second control valve (117) is provided in the second flow channel (116) to control its opening and closing.

6. The gas valve assembly according to claim 5, characterized in that, The first flow channel (114) includes the following components connected sequentially from the first cavity (111) to the second cavity (112): first flow channel A section (1141), first accommodating cavity (1142), and first flow channel B section (1143). The first control valve (115) includes a first sealing member adapted to the air inlet setting of the first flow channel B section (1143) and movably accommodated in the first accommodating cavity (1142). The first sealing member is blocked at or spaced from the air inlet of the first flow channel B section (1143) to switch the on / off state of the first flow channel (114).

7. The gas valve assembly according to claim 6, characterized in that, The first flow channel A section (1141) gradually tilts away from the first cavity (111) from the end connected to the first cavity (111) towards the end connected to the first accommodating cavity (1142).

8. The gas valve assembly according to claim 5, characterized in that, The second flow channel (116) includes the following sections connected sequentially from the first cavity (111) to the third cavity (113): second flow channel A section (1161), second accommodating cavity (1162), and second flow channel B section (1163). The second control valve (117) includes a second sealing member adapted to the air inlet setting of the second flow channel B section (1163) and movably accommodated in the second accommodating cavity (1162). The second sealing member is blocked at or spaced from the air inlet of the second flow channel B section (1163) to switch the on / off state of the second flow channel (116).

9. The gas valve assembly according to claim 8, characterized in that, The second flow channel A section (1161) gradually tilts away from the first cavity (111) from the end connected to the first cavity (111) towards the end connected to the second accommodating cavity (1162).

10. A gas-fired appliance, characterized in that, The gas valve assembly included in any one of claims 1-9.

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