Gas valve assembly

Abstract

A gas valve assembly comprises a valve body, the valve body is provided with an input port, an inner ring gas output port and an outer ring gas output port, and adjusting cavities communicated with the input port are formed in the positions, corresponding to the inner ring gas output port and the outer ring gas output port, of the valve body respectively. The adjusting cavity comprises an inner ring adjusting cavity communicated with the input port and the inner ring gas output port and an outer ring adjusting cavity communicated with the input port and the outer ring gas output port; the inner ring adjusting cavity and the outer ring adjusting cavity are each provided with an adjusting device. The gas output flow of the inner ring adjusting cavity and the gas output flow of the outer ring adjusting cavity can be independently adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas valve accessories, and in particular relates to a gas valve assembly. Background Art

[0002] A gas valve is an accessory of a stove, which is used to cut off, connect and adjust the gas in the pipeline. It has control characteristics and closing and sealing performance. In the Chinese invention patent application with patent application number 201610050770.6, a gas stove flow control valve is disclosed, which includes a valve body, an inner ring air outlet channel connected to the inner ring burner and an outer ring air outlet channel connected to the outer ring burner are provided in the valve body, the outer ring air outlet channel is connected to the inner ring air outlet channel, an air inlet channel connected to the gas source is provided in the valve body, a flow control component is provided in the valve body to divide the valve body into two spaces, the first space is connected to the air inlet channel, and the second space is connected to the inner ring air outlet channel, and a second solenoid valve for opening or closing the gas outflow from the outer ring air outlet channel is provided in the outer ring air outlet channel.

[0003] The problem is that, in the above-mentioned gas valve, when its flow control component is adjusted, the gas output flow rates of the outer ring gas outlet channel and the inner ring gas outlet channel are adjusted and changed at the same time, and the gas output flow rates of the outer ring gas outlet channel and the inner ring gas outlet channel cannot be adjusted separately, which is not conducive to cooking applications and has certain limitations. Therefore, further improvement is needed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a gas valve assembly, wherein the inner ring regulating chamber and the outer ring regulating chamber are respectively provided with regulating devices, which can separately regulate the gas output flow of the inner ring regulating chamber and the outer ring regulating chamber.

[0005] In order to achieve the above object, the technical solution provided by the utility model is:

[0006] A gas valve assembly comprises: a valve body, the valve body is provided with an input port, an inner ring gas output port, and an outer ring gas output port, and the valve body is provided with regulating chambers connected with the input port corresponding to the inner ring gas output port and the outer ring gas output port, respectively, and the regulating chambers comprise an inner ring regulating chamber connected with the input port and the inner ring gas output port, and an outer ring regulating chamber connected with the input port and the outer ring gas output port; and a regulating device, the inner ring regulating chamber and the outer ring regulating chamber are respectively provided with regulating devices so that the gas output flow of the inner ring regulating chamber and the gas output flow of the outer ring regulating chamber can be adjusted separately.

[0007] In a further solution of the utility model, the regulating device includes a valve core arranged in the regulating chamber and a driving member connected to the valve core and used to drive the valve core to operate so as to regulate the gas output flow rate.

[0008] In a further scheme of the utility model, the regulating chamber has an input end and an output end, and a ventilation structure cooperating with the output end or the input end of the regulating chamber is provided on the valve core. The driving member is connected to the valve core and drives the valve core to rotate. When the valve core rotates, the ventilation cross-sectional area of ​​the ventilation structure and the output end or the input end of the regulating chamber changes, and the ventilation structure is located between the output end and the input end of the regulating chamber.

[0009] In a further solution of the present invention, the regulating device includes a first seal, which is arranged in the regulating chamber. The first seal is located between the output end of the regulating chamber and the valve core or between the input end of the regulating chamber and the valve core. A through hole is provided on the first seal corresponding to the output end or input end of the regulating chamber.

[0010] In a further solution of the utility model, the regulating device includes an elastic member, which is arranged in the regulating cavity and connected to the valve core. The elastic member is used to drive the valve core to be pressed tightly against the first sealing member.

[0011] In a further scheme of the utility model, an output shaft is provided on the driving member, and the valve core input end is connected to the output shaft of the driving member, and an eccentric movable gap is left between the valve core input end and the output shaft of the driving member so that the valve core can be offset relative to the axial direction of the output shaft; mutually matching transmission planes are provided between the output shaft and the valve core; a matching groove is provided on the valve core corresponding to the output shaft, and the output shaft extends into the matching groove, or a matching groove is provided on the output shaft corresponding to the valve core, and the valve core input end extends into the matching groove.

[0012] In a further embodiment of the present invention, the ventilation structure includes a plurality of ventilation holes arranged on the valve core and spaced apart along the circumferential direction, the output end of the ventilation holes is provided with a recessed inclined portion, and the ventilation cross-sectional areas of the plurality of ventilation holes arranged sequentially along the circumferential direction increase or decrease sequentially; or, the ventilation structure includes a strip groove provided on the valve core and extending circumferentially, and the ventilation cross-sectional area of ​​the strip groove when it is opposite to the output end or input end of the regulating chamber increases or decreases along the circumferential direction.

[0013] In a further solution of the utility model, a first limit portion is provided on the valve core, and the first limit portion is a rod inserted on the valve core. A second limit portion is provided in the regulating chamber corresponding to the first limit portion. When the valve core runs and the first limit portion contacts the second limit portion, the valve core reaches the maximum position of the operation.

[0014] In a further scheme of the utility model, the regulating device includes a mounting seat, which is arranged on the valve body, and the driving member is arranged on the mounting seat and is located outside the mounting seat; the mounting seat is at least partially located in the regulating chamber, and the mounting seat is provided with an assembly channel for connecting the output shaft of the driving member with the valve core and a positioning groove corresponding to the elastic member, one end of the elastic member is connected to the valve core, and the other end of the elastic member is arranged in the positioning groove, the assembly channel is communicated with the positioning groove, and an interval for the operation of the first limit part is reserved between the mounting seat and the valve core; a second sealing ring is provided between the mounting seat and the regulating chamber, and a third sealing ring is provided between the mounting seat and the valve core; the mounting seat includes a base, which is located outside the regulating chamber, and a convex portion is provided on the base to abut against the valve body, and the base is mounted on the valve body by a fastener, and the fastener passes through the convex portion.

[0015] In a further solution of the utility model, the valve core includes a head and a rod connected to the head, the ventilation structure is located on the head, the head is connected to the first sealing member, the rod is connected to the driving member, the first limiting portion is located between the head and the rod, the second limiting portion is arranged on the mounting seat, the second limiting portion is located in the interval, the first limiting portion is located at the inner end of the elastic member, the third sealing ring is arranged on the rod, and the elastic member is arranged on the rod and is abutted against the head;

[0016] The first seal is located on the inner bottom surface of the regulating cavity, the first seal is provided with a barrel extending into the output end or the input end of the regulating cavity, the through hole is located on the barrel, the side of the first seal is sealed with the inner side of the regulating cavity, the side of the first seal opposite to the valve core is provided with a groove located between the side edge of the first seal and the barrel, or the side of the first seal opposite to the valve core is a plane, and the first seal is made of a soft material;

[0017] The valve body is provided with a ventilation channel connecting the input port and the regulating chamber, the ventilation channel runs through one side of the valve body, the valve body is provided with a sealing cover plate covering the ventilation channel, a fourth sealing ring is provided between the sealing cover plate and the valve body, the valve body is provided with an inner ring air outlet pipe connecting the inner ring regulating chamber and the inner ring air output port, and an outer ring air outlet pipe connecting the outer ring regulating chamber and the outer ring air output port, a switch valve for opening and closing the input port is provided on the valve body, a total air inlet and an opening and closing chamber connecting the total air inlet and the input port is provided on the valve body, the switch valve is arranged on the opening and closing chamber, and the switch valve is provided with a plug extending into the opening and closing chamber and used for opening and closing the input port; the driving member is a motor assembly, and the elastic member is a spring.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model gas valve assembly has an inner ring regulating chamber and an outer ring regulating chamber respectively provided with regulating devices, which can separately regulate the gas output flow rates of the inner ring regulating chamber and the outer ring regulating chamber, which is beneficial to the diversification of fire power regulation during cooking. The arrangement of the elastic member enables the valve core and the first sealing member to maintain a tight fit, thereby ensuring the sealing performance when the output end of the regulating chamber is closed. The arrangement of the eccentric movable gap is beneficial to extending the service life of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of some embodiments of the utility model.

[0021] Figure 2 It is a cross-sectional view of some embodiments of the present invention.

[0022] Figure 3 for Figure 2 Enlarged view of part A.

[0023] Figure 4 It is an exploded view of some embodiments of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the valve body in some embodiments of the utility model.

[0025] Figure 6 Schematic diagram of gas flow path in some embodiments of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the mounting seat in some embodiments of the utility model.

[0027] Figure 8 It is a schematic diagram of the structure of the first sealing member in some embodiments of the present invention. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] The first embodiment, as Figure 1-7 As shown, the gas valve assembly can be applied to gas stoves and other cooking appliances, including:

[0030] The valve body 1 is provided with an input port 11, an inner ring gas output port 12, and an outer ring gas output port 13. The valve body 1 is provided with a regulating cavity connected to the input port 11 corresponding to the inner ring gas output port 12 and the outer ring gas output port 13. The regulating cavity includes an inner ring regulating cavity 14 connected to the input port 11 and the inner ring gas output port 12 and an outer ring regulating cavity 15 connected to the input port 11 and the outer ring gas output port 13. Figure 6 As shown, this is the flow path of the gas in the valve body 1. The inner ring gas outlet 12 is used to supply gas to the inner ring part of the stove fire distribution plate, and the outer ring gas outlet 13 is used to supply gas to the outer ring part of the stove fire distribution plate.

[0031] The regulating device 2, the inner ring regulating chamber 14 and the outer ring regulating chamber 15 are respectively provided with regulating devices 2 so that the gas output flow rate of the inner ring regulating chamber 14 and the gas output flow rate of the outer ring regulating chamber 15 can be adjusted separately, which is beneficial to the diversification of fire power adjustment during cooking to achieve better cooking effects.

[0032] In some embodiments of the present invention, Figure 1-4 As shown, the regulating device 2 includes a valve core 21 arranged in the regulating chamber and a driving member 22 connected to the valve core 21 and used to drive the valve core 21 to operate to adjust the gas output flow rate. When the driving member 22 drives the valve core 21 to operate, the relative position relationship between the valve core 21 and the regulating chamber is changed. In this embodiment, the driving member 22 is a motor assembly.

[0033] In some embodiments of the present invention, Figure 3-4 As shown, the regulating chamber has an input end and an output end, and a ventilation structure 213 cooperating with the output end of the regulating chamber is provided on the valve core 21. The driving member 22 is connected to the valve core 21 and drives the valve core 21 to rotate. When the driving member 22 drives the valve core 21 to operate, the relative position relationship between the ventilation structure 213 and the regulating chamber is changed. When the valve core 21 rotates, the ventilation cross-sectional area of ​​the ventilation structure 213 and the output end of the regulating chamber changes, so as to realize the regulation and change of the gas output flow rate of the regulating chamber. The ventilation structure 213 is located between the output end and the input end of the regulating chamber. In this embodiment, the ventilation structure 213 is used to adjust and disconnect the connection between the output end and the input end of the regulating chamber. When the ventilation structure 213 is opposite to the output end of the regulating chamber, the connection between the output end and the input end of the regulating chamber is adjusted. When the ventilation structure 213 is completely offset from the output end of the regulating chamber, the disconnection between the output end and the input end of the regulating chamber is adjusted. Those skilled in the art can understand.

[0034] In some embodiments of the present invention, Figure 3-4As shown, the regulating device 2 includes a first sealing member 23, which is arranged in the regulating chamber. The first sealing member 23 is located between the output end of the regulating chamber and the valve core 21. The setting of the first sealing member 23 ensures the sealing performance when the output end of the regulating chamber is closed. A through hole 231 is provided on the first sealing member 23 corresponding to the output end of the regulating chamber, and the through hole 231 is used for gas output.

[0035] The first seal 23 is located on the inner bottom surface of the regulating chamber. The first seal 23 is provided with a barrel 232 extending into the output end of the regulating chamber to assist in positioning the first seal 23 on the output end of the regulating chamber. The through hole 231 is located on the barrel 232. The side of the first seal 23 is sealed with the inner side of the regulating chamber to ensure the sealing performance between the first seal 23 and the inner side of the regulating chamber. The side of the first seal 23 opposite to the valve core 21 is provided with a groove 233 located between the side edge of the first seal 23 and the barrel 232, so that the valve core 21 is in sealing contact with the side edge of the first seal 23 and the edge of the barrel 232, or, as Figure 8 As shown, the side of the first sealing member 23 opposite to the valve core 21 is a plane, and this arrangement also achieves a sealing arrangement between the first sealing member 23 and the valve core 21. The first sealing member 23 is made of a soft material, specifically, the first sealing member 23 can be made of rubber or silicone.

[0036] In some embodiments of the present invention, Figure 3-4 As shown, the regulating device 2 includes an elastic member 24, which is arranged in the regulating chamber and connected to the valve core 21. The elastic member 24 is used to drive the valve core 21 to be pressed tightly against the first sealing member 23, so that the valve core 21 and the first sealing member 23 maintain a tight fit, thereby ensuring the sealing performance when the output end of the regulating chamber is closed. In this embodiment, the elastic member 24 is a spring.

[0037] In some embodiments of the present invention, Figure 3-4 As shown, the driving member 22 is provided with an output shaft 221, and the input end of the valve core 21 is connected to the output shaft 221 of the driving member 22. An eccentric movable gap is left between the input end of the valve core 21 and the output shaft 221 of the driving member 22 so that the valve core 21 can be offset relative to the axial direction of the output shaft 221. Even if there is eccentricity between the valve core 21 and the output shaft 221 of the driving member 22, the normal operation of the valve core 21 is not affected, and the wear of the valve core 21 during operation is reduced, which is beneficial to extending the service life of the gas valve assembly and avoiding greater wear caused by the eccentric operation of the valve core 21 when a hard interference fit is adopted between the valve core 21 and the output shaft 221 of the driving member 22.

[0038] A mating transmission plane is provided between the output shaft 221 and the valve core 21; in this embodiment, a mating groove 214 is provided on the valve core 21 corresponding to the output shaft 221, and the output shaft 221 extends into the mating groove 214 to achieve the mating of the valve core 21 and the driving member 22. Of course, other alternative schemes can also be adopted, that is, a mating groove 214 is provided on the output shaft 221 corresponding to the valve core 21, and the input end of the valve core 21 extends into the mating groove 214.

[0039] In some embodiments of the present invention, Figure 3-4 As shown, in this embodiment, the ventilation structure 213 includes a plurality of ventilation holes arranged on the valve core 21 and arranged at intervals along the circumferential direction, and a recessed inclined portion 2131 is provided at the output end of the ventilation hole. Sealing grease is generally provided between the valve core 21 and the first sealing member 23. The recessed inclined portion 2131 can be used to accommodate the sealing grease to prevent the sealing grease from directly blocking the ventilation hole. The ventilation cross-sectional areas of the plurality of ventilation holes arranged in sequence along the circumferential direction increase or decrease in sequence, and the ventilation cross-sectional areas of different ventilation holes are different when they are aligned with the output end of the regulating chamber, thereby realizing the adjustment and change of the gas output flow rate.

[0040] Of course, other alternatives may also be used. The ventilation structure 213 includes a strip groove (not shown in the figure) provided on the valve core 21 and extending circumferentially. The ventilation cross-sectional area when the strip groove is opposite to the output end of the regulating chamber increases or decreases circumferentially. The ventilation cross-sectional area is different when the strip groove is at different positions relative to the output end of the regulating chamber, thereby realizing the adjustment and change of the gas output flow rate.

[0041] In some embodiments of the present invention, Figure 3 , 4 As shown in , 7, a first limiting portion 215 is provided on the valve core 21, and the first limiting portion 215 is a rod inserted on the valve core 21. A second limiting portion 216 is provided in the regulating chamber corresponding to the first limiting portion 215. When the valve core 21 runs and the first limiting portion 215 contacts the second limiting portion 216, the valve core 21 reaches the maximum position of the operation. When the valve core 21 rotates forward or reversely, and the first limiting portion 215 respectively abuts against both sides of the second limiting portion 216, the valve core 21 reaches the maximum position of the forward or reverse operation.

[0042] In some embodiments of the present invention, Figure 3 , 4 As shown in , 7 , the regulating device 2 includes a mounting seat 3 , the mounting seat 3 is arranged on the valve body 1 , the driving member 22 is arranged on the mounting seat 3 and is located outside the mounting seat 3 , so as to realize the installation of the driving member 22 on the valve body 1 .

[0043] The mounting seat 3 is at least partially located in the regulating cavity. The mounting seat 3 is provided with an assembly channel 32 for connecting the output shaft 221 of the driving member 22 with the valve core 21 and a positioning groove 31 corresponding to the elastic member 24. One end of the elastic member 24 is connected to the valve core 21, and the other end of the elastic member 24 is arranged in the positioning groove 31, so that the elastic member 24 is assembled in the regulating cavity. The assembly channel 32 is communicated with the positioning groove 31. An interval 33 for the operation of the first limiting portion 215 is reserved between the mounting seat 3 and the valve core 21. The second limiting portion 216 is arranged on the mounting seat 3, and the second limiting portion 216 is located in the interval 33, so that the first limiting portion 215 can cooperate with the second limiting portion 216.

[0044] A second sealing ring 4 is provided between the mounting seat 3 and the regulating chamber to ensure the sealing performance therebetween, and a third sealing ring 5 is provided between the mounting seat 3 and the valve core 21 to ensure the sealing performance therebetween.

[0045] The mounting seat 3 includes a base 35, which is located outside the regulating chamber. The base 35 is provided with a convex portion 36 that is arranged against the valve body 1. The base 35 is installed on the valve body 1 through a fastener, and the fastener passes through the convex portion 36. The fastener can be a bolt. The provision of the convex portion 36 reduces the contact area between the base 35 and the valve body 1, thereby reducing or avoiding the situation where the relative surfaces of the base 35 and the valve body 1 are seriously affected by the normal operation of the valve core 21 after assembly due to low processing accuracy.

[0046] In some embodiments of the present invention, Figure 2-4 As shown, the valve core 21 includes a head 211 and a rod 212 connected to the head 211, the ventilation structure 213 is located on the head 211, the head 211 is connected to the first sealing member 23, the rod 212 is connected to the driving member 22, so as to realize the matching installation of the valve core 21, the first limiting portion 215 is located between the head 211 and the rod 212, the first limiting portion 215 is located at the inner end of the elastic member 24, the third sealing ring 5 is arranged on the rod 212, the elastic member 24 is arranged on the rod 212 and is connected against the head 211, so as to realize the positioning installation of the elastic member 24;

[0047] The valve body 1 is provided with a ventilation channel 16 connecting the input port 11 and the regulating chamber, and the ventilation channel 16 passes through one side of the valve body 1. This form is convenient for processing the relevant gas path structure on the valve body 1. The valve body 1 is provided with a sealing cover plate 17 covering the ventilation channel 16, and a fourth sealing ring 18 is provided between the sealing cover plate 17 and the valve body 1. The arrangement of the sealing cover plate 17 and the fourth sealing ring 18 ensures the sealing performance of the position where the ventilation channel 16 passes through the valve body 1. The valve body 1 is provided with an inner ring outlet pipe 19 connecting the inner ring regulating chamber 14 and the inner ring gas output port 12, and an outer ring outlet pipe 20 connecting the outer ring regulating chamber 15 and the outer ring gas output port 13. The air outlet pipe 19 and the outer ring air outlet pipe 20 are used for gas transmission. A switch valve 6 for opening and closing the input port 11 is provided on the valve body 1. A total air inlet 25 and an opening and closing cavity 26 connecting the total air inlet 25 and the input port 11 are provided on the valve body 1. The switch valve 6 is arranged on the opening and closing cavity 26. The switch valve 6 is provided with a plug 61 extending into the opening and closing cavity 26 and used for opening and closing the input port 11. When the plug 61 of the switch valve 6 closes the input port 11, the gas is no longer supplied to the inner ring regulating cavity 14 and the outer ring regulating cavity 15. When the plug 61 of the switch valve 6 is opened, the gas is supplied to the inner ring regulating cavity 14 and the outer ring regulating cavity 15.

[0048] In the second embodiment, the gas valve assembly is different from the first embodiment in that a ventilation structure 213 cooperating with the input end of the regulating chamber is provided on the valve core 21, and the ventilation cross-sectional area of ​​the ventilation structure 213 and the input end of the regulating chamber changes when the valve core 21 rotates, and the ventilation structure 213 is used for regulating the connectivity between the output end and the input end of the regulating chamber and closing it.

[0049] In some embodiments of the utility model, the first seal 23 is located between the input end of the regulating chamber and the valve core 21, and a through hole 231 is provided on the first seal 23 corresponding to the input end of the regulating chamber. The setting of the first seal 23 ensures the sealing performance when the input end of the regulating chamber is closed, and the ventilation hole or strip groove included in the ventilation structure 213 cooperates with the input end of the regulating chamber.

[0050] In some embodiments of the present invention, the first sealing member 23 is provided with a cylindrical portion 232 extending into the input end of the regulating chamber to assist in positioning the first sealing member 23 on the input end of the regulating chamber.

[0051] The other parts not described are the same as those in the first embodiment and will not be discussed again.

[0052] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A gas valve assembly, characterized in that: include: A valve body (1), the valve body (1) being provided with an input port (11), an inner ring gas output port (12), and an outer ring gas output port (13); the valve body (1) being provided with regulating chambers corresponding to the inner ring gas output port (12) and the outer ring gas output port (13) and communicating with the input port (11); the regulating chambers comprising an inner ring regulating chamber (14) communicating with the input port (11) and the inner ring gas output port (12), and an outer ring regulating chamber (15) communicating with the input port (11) and the outer ring gas output port (13); The inner ring regulating chamber (14) and the outer ring regulating chamber (15) are each provided with a regulating device (2) so that the gas output flow rate of the inner ring regulating chamber (14) and the gas output flow rate of the outer ring regulating chamber (15) can be adjusted separately.

2. The gas valve assembly according to claim 1, characterized in that: The regulating device (2) comprises a valve core (21) disposed in the regulating chamber and a driving member (22) connected to the valve core (21) and used to drive the valve core (21) to operate so as to regulate the gas output flow rate.

3. The gas valve assembly according to claim 2, characterized in that: The regulating chamber has an input end and an output end, a venting structure (213) is provided on the valve core (21) and cooperates with the output end or the input end of the regulating chamber, a driving member (22) is connected to the valve core (21) and drives the valve core (21) to rotate, and when the valve core (21) rotates, the venting cross-sectional area between the venting structure (213) and the output end or the input end of the regulating chamber changes, and the venting structure (213) is located between the output end and the input end of the regulating chamber.

4. The gas valve assembly according to claim 3, characterized in that: The regulating device (2) comprises a first sealing member (23), the first sealing member (23) being arranged in the regulating chamber, the first sealing member (23) being located between the output end of the regulating chamber and the valve core (21) or between the input end of the regulating chamber and the valve core (21), and a through hole (231) being provided on the first sealing member (23) corresponding to the output end or the input end of the regulating chamber.

5. The gas valve assembly according to claim 4, characterized in that: The regulating device (2) comprises an elastic member (24), the elastic member (24) being arranged in the regulating chamber, the elastic member (24) being connected to the valve core (21), and the elastic member (24) being used to drive the valve core (21) to be tightly pressed against the first sealing member (23).

6. The gas valve assembly according to claim 5, characterized in that: The driving member (22) is provided with an output shaft (221), the input end of the valve core (21) is connected to the output shaft (221) of the driving member (22), and an eccentric movable gap is left between the input end of the valve core (21) and the output shaft (221) of the driving member (22) so that the valve core (21) can be offset relative to the axial direction of the output shaft (221); A transmission plane that cooperates with each other is provided between the output shaft (221) and the valve core (21); a matching groove (214) is provided on the valve core (21) corresponding to the output shaft (221), and the output shaft (221) extends into the matching groove (214); or, a matching groove (214) is provided on the output shaft (221) corresponding to the valve core (21), and an input end of the valve core (21) extends into the matching groove (214).

7. The gas valve assembly according to claim 6, characterized in that: The ventilation structure (213) comprises a plurality of ventilation holes arranged at intervals along the circumferential direction and provided on the valve core (21); the output end of the ventilation hole is provided with a concave inclined portion (2131); and the ventilation cross-sectional areas of the plurality of ventilation holes arranged in sequence along the circumferential direction increase or decrease in sequence; Alternatively, the ventilation structure (213) comprises a strip-shaped groove provided on the valve core (21) and extending in the circumferential direction, and the ventilation cross-sectional area of ​​the strip-shaped groove when it is opposite to the output end or the input end of the regulating chamber increases or decreases in the circumferential direction.

8. The gas valve assembly according to claim 6, characterized in that: The valve core (21) is provided with a first limit portion (215), the first limit portion (215) being a rod inserted into the valve core (21), and a second limit portion (216) corresponding to the first limit portion (215) is provided in the regulating chamber, and when the valve core (21) operates and the first limit portion (215) contacts the second limit portion (216), the valve core (21) reaches a maximum operating position.

9. The gas valve assembly according to claim 8, characterized in that: The regulating device (2) comprises a mounting seat (3), the mounting seat (3) being arranged on the valve body (1), and the driving member (22) being arranged on the mounting seat (3) and located outside the mounting seat (3); The mounting seat (3) is at least partially located in the regulating chamber. The mounting seat (3) is provided with an assembly channel (32) for connecting the output shaft (221) of the driving member (22) and the valve core (21) and a positioning groove (31) corresponding to the elastic member (24). One end of the elastic member (24) is connected to the valve core (21), and the other end of the elastic member (24) is arranged in the positioning groove (31). The assembly channel (32) is communicated with the positioning groove (31). A space (33) for the first limiting portion (215) to operate is reserved between the mounting seat (3) and the valve core (21). A second sealing ring (4) is provided between the mounting seat (3) and the regulating chamber, and a third sealing ring (5) is provided between the mounting seat (3) and the valve core (21); The mounting seat (3) comprises a base (35), the base (35) being located outside the regulating cavity, the base (35) being provided with a convex portion (36) disposed against the valve body (1), the base (35) being mounted on the valve body (1) via a fastener, the fastener passing through the convex portion (36).

10. The gas valve assembly according to claim 9, characterized in that: The valve core (21) comprises a head (211) and a rod (212) connected to the head (211); the ventilation structure (213) is located on the head (211); the head (211) is connected to the first sealing member (23); the rod (212) is connected to the driving member (22); the first limiting portion (215) is located between the head (211) and the rod (212); the second limiting portion (216) is arranged on the mounting seat (3); the second limiting portion (216) is located in the interval (33); the first limiting portion (215) is located at the inner end of the elastic member (24); the third sealing ring (5) is arranged on the rod (212); the elastic member (24) is arranged on the rod (212) and is abutted against the head (211); The first sealing member (23) is located on the inner bottom surface of the regulating chamber, the first sealing member (23) is provided with a barrel portion (232) extending into the output end or the input end of the regulating chamber, the through hole (231) is located on the barrel portion (232), the side of the first sealing member (23) is sealedly connected to the inner side of the regulating chamber, the side of the first sealing member (23) opposite to the valve core (21) is provided with a groove (233) located between the side edge of the first sealing member (23) and the barrel portion (232), or the side of the first sealing member (23) opposite to the valve core (21) is a plane, and the first sealing member (23) is made of a soft material; The valve body (1) is provided with a vent channel (16) connecting the input port (11) and the regulating chamber, the vent channel (16) passing through one side of the valve body (1), the valve body (1) is provided with a sealing cover plate (17) covering the vent channel (16), a fourth sealing ring (18) is provided between the sealing cover plate (17) and the valve body (1), the valve body (1) is provided with an inner ring air outlet pipe (19) connecting the inner ring regulating chamber (14) and the inner ring air outlet (12), and an outer ring regulating chamber (15) connecting the outer ring air outlet (13). ), a switch valve (6) for opening and closing the input port (11) is provided on the valve body (1), a total air inlet (25) and an opening and closing cavity (26) communicating with the total air inlet (25) and the input port (11) are provided on the valve body (1), the switch valve (6) is arranged on the opening and closing cavity (26), the switch valve (6) is provided with a plug (61) extending into the opening and closing cavity (26) and used to open and close the input port (11), the driving member (22) is a motor assembly, and the elastic member (24) is a spring.

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