CN218178043U - Valve body assembly structure and cooking appliance - Google Patents

Abstract

The embodiment of the application provides a valve body assembly structure and cooking appliance, wherein, valve body assembly structure includes valve body, air duct, mounting and connecting piece. The valve body is provided with a gas channel; the gas guide pipe is provided with a gas guide channel which is communicated with the gas channel; the fixing piece is arranged on the outer wall of the fuel gas channel; the connecting piece comprises a sleeve joint part and two clamping parts, the two clamping parts are oppositely arranged on two sides of the sleeve joint part, the sleeve joint part is sleeved on the air guide tube, and the two clamping parts are respectively clamped with the fixing piece to enable the air guide tube and the valve body to be in sealing fit. The valve body assembly structure of the embodiment of the application can solve the problem of low assembly efficiency.

Description

Valve body assembly structure and cooking appliance

Technical Field

The application relates to the technical field of kitchen ware equipment, in particular to a valve body assembling structure and a cooking appliance.

Background

In the related art, the valve body of the large gas oven and the assembly structure of the gas guide pipe are in threaded connection, the assembly structure consumes time and labor, and is high in assembly requirement, so that the problems of large assembly workload and low assembly efficiency exist.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present application is expected to provide a valve body assembly structure and a cooking appliance with high assembly efficiency.

To achieve the above object, an aspect of an embodiment of the present application provides a valve body assembling structure, including:

a valve body having a gas passage;

the gas guide pipe is provided with a gas guide channel, and the gas guide channel is communicated with the gas channel;

the fixing piece is arranged on the outer wall of the gas channel;

the connecting piece, the connecting piece includes cup joint portion and two joint portions, two joint portion sets up relatively the both sides of cup joint portion, the cover joint portion cover is established on the air duct, two joint portion through respectively with the mounting joint makes the air duct with the valve body is sealed to be cooperated.

In one embodiment, each of the clamping parts is clamped with the fixing piece under the action of elastic force.

In one embodiment, the air duct comprises a duct body, a first flange is formed on the outer surface of the side wall of the duct body, and the sleeve portion is sleeved on the duct body and is abutted against the first flange.

In one embodiment, the sleeve portion is a snap ring having a first opening, and the pipe body is clamped into the snap ring through the first opening.

In one embodiment, one end of each clamping portion is connected with the clamping ring, one end, far away from the clamping ring, of each clamping portion is bent to form a clamping hook, the fixing piece is provided with a clamping surface matched with the clamping hook in shape, and the clamping hook abuts against the clamping surface.

In one embodiment, the connecting piece comprises a limiting part, and one end of each clamping hook, which is far away from the clamping ring, is respectively connected with the limiting part; the fixing piece is provided with a limiting groove, and at least partial area of each limiting part is clamped into the limiting groove.

In one embodiment, one end of each limiting part, which is far away from the hook, is bent to form a holding part.

In one embodiment, a step surface is formed in the gas channel, and one end of the pipe body, provided with the first flange, extends into the gas channel and is in sealing fit with the step surface.

In one embodiment, the valve body assembly structure includes a seal ring; and a second flange is formed on the outer surface of the side wall of the pipe body, the second flange is positioned between the first flange and the step surface, and the sealing ring is arranged between the first flange and the second flange.

In one embodiment, the seal ring is disposed between the first flange and the step surface.

In one embodiment, the number of the second flange and the sealing ring is plural, and the sealing ring is disposed between the second flange and the step surface and between two adjacent second flanges.

In one embodiment, the valve body assembly structure includes a main air pipe, and the valve body is formed with a main air pipe interface, and the main air pipe is in threaded connection with the main air pipe interface.

In one embodiment, the valve body assembling structure includes a sealing ring, and the sealing ring is sleeved on the main air pipe interface, so that the main air pipe and the main air pipe interface are in sealing fit through the sealing ring.

Another aspect of the embodiments of the present application provides a cooking appliance, which includes the above valve body assembling structure.

The valve body assembly structure of the embodiment of the application, wherein, the connecting piece is including cup jointing portion and two joint portions, cup jointing portion cover is established on the air duct, two joint portions respectively with the mounting joint, that is to say, this valve body assembly structure is as long as establish on the air duct through setting up the connecting piece cover, cooperate with the valve body joint simultaneously, can realize the sealing connection of air duct and valve body, this valve body assembly structure is simple, and assembly efficiency is high, in addition, be provided with two joint portions through the both sides at cup jointing portion relatively, two joint portions respectively with the mounting joint, the stability and the reliability that connecting piece and mounting are connected have been improved, and then valve body assembly structure's stability and reliability have been improved.

Drawings

Fig. 1 is a schematic structural view of a valve body assembly structure according to an embodiment of the present application;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an enlarged view at A in FIG. 1;

FIG. 5 is an enlarged view at B in FIG. 3;

FIG. 6 is a schematic structural diagram of a valve body according to an embodiment of the present disclosure, wherein a fixing member is disposed on the valve body;

FIG. 7 is a schematic view of an airway tube according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a connector according to an embodiment of the present application.

Description of the reference numerals

A valve body 10; a gas passage 10a; a step surface 10b; a main air pipe interface 11; a fixing member 20; a clamping surface 20a; a stopper groove 20b; an airway tube 30; an air guide passage 30a; a tube body 31; a first flange 32; a second flange 33; a connecting member 40; a socket portion 40a; a clip portion 40b; the first opening 40c; a stopper 40d; a grip portion 40e; and a seal ring 50.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

Referring to fig. 1 to 8, an embodiment of the present application provides a valve assembly structure, including a valve body 10, an air duct 30, a fixing member 20, and a connecting member 40.

The valve body 10 is provided with a gas channel 10a, the gas guide tube 30 is provided with a gas guide channel 30a communicated with the gas channel 10a of the valve body 10, the gas guide channel 30a can be used for gas circulation, gas enters the gas guide channel 30a from the gas channel 10a, flows out from a gas outlet of the gas guide channel 30a and enters the furnace end, and the furnace end is ignited by an igniter to be combusted.

The valve body 10 includes a control valve capable of controlling the connection and the disconnection of the gas guide passage 30a to control the flow of the gas in the gas guide passage 30a and also controlling the flow rate of the gas in the gas guide passage 30a, and the gas guide passage 30 is, for example, an aluminum gas pipe.

The connecting piece 40 comprises a sleeve joint part 40a and two clamping parts 40b, the two clamping parts 40b are oppositely arranged on two sides of the sleeve joint part 40a, the sleeve joint part 40a is sleeved on the air guide tube 30, and the two clamping parts 40b are respectively clamped with the fixing piece 20 to enable the air guide tube 30 to be in sealing fit with the valve body 10.

The fixing member 20 is disposed on the outer wall of the gas channel 10a, and the two catching portions 40b are respectively caught by the fixing member 20. That is, the catching portion 40b is caught by the fixing member 20 to achieve the connection with the valve body 10.

It should be noted that the number of the fixing pieces 20 is not limited herein, and for example, two fixing pieces 20 corresponding to the two clamping portions 40b are arranged on the outer wall of the gas channel 10a, and the two clamping portions 40b are respectively clamped with the corresponding fixing pieces 20.

In some embodiments, only one fixing member 20 is disposed on the outer wall of the gas channel 10a, and both of the clamping portions 40b are clamped with the fixing member 20.

Another embodiment of the present application further provides a cooking appliance, including the valve body assembling structure provided in any embodiment of the present application, exemplarily, the cooking device is a large oven.

In some embodiments, the cooking device may also be an oven, a steam oven, or the like, and a cooking bench is integrated on the cooking device with different functions according to user requirements, so that convenience in use in a kitchen is improved.

In the related art, the aluminum air pipe of the gas big oven is connected with the valve body through threads, for example, the aluminum air pipe is connected through a nut, and the nut is used for fixing the installation of the aluminum air pipe; in addition, the aluminum air pipe and the valve body can cause stress between the air guide pipe and the valve body under the thrust generated by the rotation of the screw threads of the nut.

And the valve body assembly structure of this application embodiment, wherein, connecting piece 40 includes cup joint portion 40a and two joint portions 40b, and the cover joint portion 40a cover is established on air duct 30, and two joint portions 40b respectively with mounting 20 joint, that is to say, this valve body assembly structure as long as establish connecting piece 40 cover on air duct 30 through setting up, cooperate with valve body 10 joint simultaneously, can realize air duct 30 and valve body 10's sealing connection, this valve body assembly structure is simple, and assembly efficiency is high.

In addition, through being provided with two joint portions 40b relatively in the both sides of portion 40a of cup jointing, two joint portions 40b respectively with mounting 20 joint, improved the stability and the reliability that connecting piece 40 is connected with mounting 20, and then improved valve body assembly structure's stability and reliability.

The specific number of the valve bodies 10 and the air ducts 30 is not limited herein, the number of the valve bodies 10 may be one or multiple, it can be understood that the number of the air ducts 30 may be one or multiple, the valve bodies 10 and the air ducts 30 may be in one-to-one correspondence, or one valve body 10 may be connected to multiple air ducts 30.

It can be understood that, the connection structure of the air duct 30 and the furnace end can also be the above structure, that is, the connecting piece 40 can be sleeved on the air duct 30, and simultaneously, the two clamping parts 40b are respectively clamped with the fixing piece 20 on the furnace end, so that the air duct 30 and the furnace end are in sealing fit.

In one embodiment, referring to fig. 1 and 4, each of the clamping portions 40b is clamped with the fixing member 20 under the action of elastic force. It can be understood that, each clamping portion 40b is clamped with the fixing member 20 under the action of elastic force, so that stress generated among the connecting member 40, the air duct 30 and the valve body 10 can be reduced, that is, the stress generated among the connecting member 40, the air duct 30 and the valve body 10 is prevented from being too large, and the air duct 30 and the valve body 10 are damaged, thereby improving the reliability of the valve body assembling structure, and in addition, the clamping connection of the connecting member 40 and the fixing member 20 is facilitated.

The specific manner in which each engaging portion 40b engages with the fixing member 20 under the action of elastic force is not limited herein, and the connecting member 40 can be elastically deformed, for example.

It should be noted that, the material of the connecting element 40 is not limited herein, and for example, the material of the connecting element 40 is a spring steel material capable of generating elastic deformation, so that the connecting element 40 has sufficient strength and toughness, and the connecting element 40 can generate elastic deformation when connecting the air duct 30 and the valve body 10, that is, the connecting element 40 connects the air duct 30 and the valve body 10 under the action of elastic force, so as to allow the air duct 30 and the valve body 10 to be assembled and tightly contacted to achieve the effect of no falling; through the above structure fixation, the sealing ring 50 can be tightly attached to the step surface 10b in a compressed state, so that the effect of air tightness and safety is achieved.

In some embodiments, the connecting member 40 may not be elastically engaged with the fixing member 20.

In one embodiment, referring to fig. 5 and 7, the gas-guiding tube 30 includes a tube 31, the tube 31 has a gas-guiding channel 30a, and the gas flows from the gas-guiding channel 10a into the gas-guiding channel 30a through an inlet of the gas-guiding channel 30a and flows out from an outlet of the gas-guiding channel 30 a.

Referring to fig. 7, the outer surface of the sidewall of the tube 31 is formed with a first flange 32, that is, the outer surface of the sidewall of the tube 31 extends radially outward to form the first flange 32, and the first flange 32 may be annular or a part of annular; the first flange 32 is disposed at one end of the pipe body 31 coupled to the valve body 10.

The socket portion 40a is fitted over the pipe body 31 and abuts against the first flange 32. So, cup joint portion 40a through with first flange 32 butt, produces a power towards valve body 10 to body 31, rethread joint portion 40b and the mounting 20 joint of valve body 10 to make body 31 and the sealed cooperation of valve body 10, prevent that body 31 from deviating from in the gas passageway 10 a.

Referring to fig. 5, a step surface 10b is formed in the gas passage 10a, and one end of the pipe 31 provided with the first flange 32 extends into the gas passage 10a and is in sealing engagement with the step surface 10 b. That is to say, the end of the pipe 31 provided with the first flange 32 extends into the gas channel 10a, and then the connecting piece 40 is sleeved on the gas guide tube 30 and is in clamping fit with the valve body 10 to realize the sealing connection between the gas guide tube 30 and the valve body 10, and the valve body has a simple assembly structure and high assembly efficiency.

The structure of the air duct 30 in sealing engagement with the step surface 10b has various forms, and for example, referring to fig. 5, one end of the tube 31 provided with the first flange 32 is inserted into the gas channel 10a, and the first flange 32 is in sealing engagement with the step surface 10 b. That is, the air duct 30 and the valve body 10 are hermetically connected by forming the first flange 32 on the outer surface of the tube body 31 to be in sealing engagement with the stepped surface 10 b.

It can be understood that, through the sealed cooperation of first flange 32 and step face 10b, increased the area of contact of air duct 30 and valve body 10, carry on spacingly to air duct 30, can also improve the connection leakproofness of air duct 30 and valve body 10 to, can prevent that the gas from revealing from the junction of air duct 30 and valve body 10, improved cooking appliance's safety in utilization performance and reliability.

In some embodiments, the end face of the tubular body 31 is in sealing engagement with the stepped surface 10 b.

Referring to fig. 2 and 5, the valve body assembly structure includes a sealing ring 50, and the air duct 30 is in sealing fit with the step surface 10b through the sealing ring 50, so as to further improve the connection sealing performance between the air duct 30 and the valve body 10.

The air duct 30 is in sealing fit with the step surface 10b through a sealing ring 50, and for example, referring to fig. 3 and 5, the sealing ring 50 is disposed between the first flange 32 and the step surface 10b, that is, the sealing ring 50 is sleeved on the tube body 31 and is located on a side of the first flange 32 close to the step surface 10 b. When the connecting piece 40 forms a force towards the direction of the step surface 10b to the first flange 32 under the action of the elastic force, the first flange 32 and the step surface 10b press the sealing ring 50 under the action of the elastic force, the sealing ring 50 is sleeved on the tube body 31 through the arrangement of the sealing ring 50, and the sealing ring 50 is pressed through the first flange 32 and the step surface 10b, so that the sealing ring 50 realizes multiple sealing to the air duct 30 and the valve body 10, wherein one is the sealing between the first flange 32 and the step surface 10b, and the other is the sealing between the sealing ring 50 and the inner wall of the gas channel 10a, and further, the sealing performance between the air duct 30 and the valve body 10 is improved, so that the gas can be prevented from leaking from the connection part of the air duct 30 and the valve body 10, the use safety performance and the reliability of the cooking appliance are improved, meanwhile, the step surface 10b can also play a role in positioning for the air duct 30, and when the first flange 32 and the step surface 10b are abutted, the air duct 30 is shown to be assembled in place.

In addition, the specific type of the sealing ring 50 is not limited herein, and the sealing ring 50 is, for example, a rubber ring.

In some embodiments, the air duct 30 and the stepped surface 10b are in sealing engagement with each other by a sealing ring 50, and the sealing ring 50 may be interposed between an end surface of the tube body 31 and the stepped surface 10 b.

One end of the air duct 30 extends into the gas channel 10a, the end face of the tube body 31 abuts against the sealing ring 50, under the action of elastic force, the air duct 30 presses the sealing ring 50, the end face of the tube body 31 is in sealing contact with the step face 10b, and the sealing ring 50 is arranged between the end face of the air duct 30 and the step face 10b, so that the sealing performance between the air duct 30 and the valve body 10 is improved.

In some embodiments, the end face of the tube 31 is in sealing contact with the end face of the valve body 10, thereby achieving the sealing connection between the gas guiding tube 30 and the valve body 10.

In one embodiment, referring to fig. 5 and 7, a second flange 33 is formed on the outer surface of the sidewall of the tube 31, and the second flange 33 is located between the first flange 32 and the step surface 10 b. That is, the outer surface of the sidewall of the tube 31 extends radially outward to form a second flange 33, and the second flange 33 may be annular or a part of annular.

A seal ring 50 is provided between the first flange 32 and the second flange 33. That is, the sealing ring 50 is interposed between the first flange 32 and the second flange 33, the first flange 32 and the second flange 33 limit the sealing ring 50, when the connecting member 40 forms a force toward the step surface 10b to the first flange 32 under the action of the elastic force, the second flange 33 and the step surface 10b are in sealing engagement under the action of the elastic force, so as to realize multiple sealing of the gas guiding pipe 30 and the valve body 10, wherein one is the sealing between the second flange 33 and the step surface 10b, and the other is the sealing between the sealing ring 50 between the first flange 32 and the second flange 33 and the inner wall of the gas passage 10a, so that the sealing performance between the gas guiding pipe 30 and the valve body 10 is improved.

It should be noted that the number of the sealing rings 50 is not limited, for example, a plurality of sealing rings 50 are provided, the sealing ring 50 is provided between the first flange 32 and the second flange 33, the sealing ring 50 is also provided between the second flange 33 and the step surface 10b, and the sealing ring 50 is provided to realize multiple sealing of the air duct 30 and the valve body 10, thereby further improving the sealing performance between the air duct 30 and the valve body 10.

It should be noted that the number of the second flanges 33 is not limited, and for example, the second flanges 33 are plural, and the seal rings 50 are provided between each second flange 33 and the step surface 10b and between two adjacent second flanges 33.

It can be understood that friction may be generated when the valve body 10 and the air duct 30 are assembled, and in order to prevent air leakage caused by damage of the sealing ring 50 due to friction, in this embodiment, multiple sealing protections are formed between the valve body 10 and the air duct 30 through the multiple sealing rings 50, so that the reliability of the valve body assembling structure is improved.

It should be noted that, the specific structure of the socket portion 40a is not limited herein, for example, referring to fig. 1, fig. 2 and fig. 8, the socket portion 40a is a snap ring having a first opening 40c, and the tube 31 is snapped into the snap ring through the first opening 40 c. That is to say, body 31 is gone into the snap ring through first opening 40c card and is established on air duct 30 in order to realize that cup joint portion 40a overlaps, specifically, first opening 40 c's opening size is less than body 31's diameter, and body 31 is through the first opening 40c of extrusion so that the snap ring takes place elastic deformation, and when body 31 goes into the snap ring through first opening 40c card, the snap ring resumes elastic deformation and overlaps and establish on body 31 to it is spacing to realize the circumference to body 31, can prevent that air duct 30 from deviating from in the snap ring through first opening 40 c. Meanwhile, the snap ring abuts against one side of the first flange 32, which is far away from the air inlet of the air guide channel 30a, so that the connecting piece 40 forms a force towards the direction of the step surface 10b to the first flange 32 under the action of the elastic force, and the air guide tube 30 and the valve body 10 are connected.

The specific structure of the snap ring is not limited herein, for example, the snap ring has a U-shaped groove, and the pipe body 31 is inserted into the U-shaped groove of the snap ring through the first opening 40 c.

In an embodiment, referring to fig. 4 and 8, one end of each of the clamping portions 40b is connected to the snap ring, one end of each of the clamping portions 40b away from the snap ring is bent to form a hook, the fixing member 20 has a clamping surface 20a matching with the shape of the hook, and the hook abuts against the clamping surface 20 a. That is, the catching portion 40b of the connector 40 is brought into contact with the valve body 10 by abutting against the catching surface 20 a. Simultaneously, the relative both sides of snap ring all are provided with the trip, and two trips lean on respectively on the joint face 20a that corresponds, have improved the stability and the reliability that connecting piece 40 and mounting 20 are connected, and then have improved valve body assembly structure's stability and reliability.

It should be noted that there are various structures for the hook to cooperate with the fixing member 20, and it is not limited herein, for example, referring to fig. 4 and fig. 6, a partial area of the fixing member 20 is convex to form a clamping surface 20a, and a concave surface of the hook is disposed toward the clamping surface 20a and abuts against the convex clamping surface 20a to realize connection with the valve body 10.

The concave surface of the hook is designed as an arc, and the fastening surface 20a is also designed as a corresponding arc. Therefore, the hook is convenient to abut against the clamping surface 20a, even if the hook is clamped with the clamping surface 20 a.

During assembly, the tube 31 is clamped into the snap ring through the first opening 40c to realize that the sleeve joint part 40a is sleeved on the air duct 30, pressure is applied to the snap ring to enable the snap ring to be close to the clamping surface 20a, at the moment, the connecting piece 40 is elastically deformed until the snap ring completely abuts against the clamping surface 20a, and clamping of the snap ring and the clamping surface 20a is completed. Wherein, the elastic deformation of the connecting piece 40 can increase the friction between the valve body 10 and the air duct 30, thereby improving the reliability of the valve body assembling structure.

In some embodiments, a partial region of the fixing member 20 is recessed to form a clamping surface 20a, a recessed surface of the hook is disposed away from the clamping surface 20a, and a side of the hook facing away from the recessed surface abuts against the recessed clamping surface 20a to achieve connection with the valve body 10.

In an embodiment, referring to fig. 4 and 8, the connecting member 40 includes a limiting portion 40d, and one end of each hook away from the snap ring is connected to the limiting portion 40d; the fixing member 20 has a retaining groove 20b, and each retaining portion 40d is at least partially caught in the retaining groove 20 b. That is, when the hook abuts against the engaging surface 20a, at least a part of the limiting portion 40d of the connecting member 40 is engaged into the limiting groove 20b of the fixing member 20, so as to prevent the hook from coming off the engaging surface 20a, thereby improving the reliability of the connection between the connecting member 40 and the fixing member 20.

The specific structure and position of the limiting groove 20b are not limited herein, and for example, referring to fig. 6, the limiting groove 20b is disposed on a side of the fixing member 20 away from the clamping surface 20 a.

In an embodiment, referring to fig. 4 and 8, one end of each limiting portion 40d away from the hook is bent to form a holding portion 40e. The setting of the portion 40e of gripping can make things convenient for the assembler to grip the connecting piece 40 to can be through pressing the portion 40e of gripping, so that the connecting piece 40 takes place elastic deformation, made things convenient for the assembly and the dismantlement of connecting piece 40 promptly, improved the assembly efficiency of connecting piece 40.

In one embodiment, the valve assembly structure includes a main gas pipe (not shown) having a main gas channel communicated with the gas channel 10a, the gas enters the gas channel 10a through the main gas channel, then enters the gas guide channel 30a from the gas channel 10a, and flows out from the gas outlet of the gas guide channel 30a to enter the burner, and the burner is ignited by an igniter to burn.

In the correlation technique, the assembly between valve body and the main air pipe is mainly through valve buckle and screw locking, and this kind of assembly mode relates to spare part quantity more, and complicated operation, and production efficiency is low, can't realize automatic and semi-automatization assembly at present.

In the valve body 10 of the valve body assembly structure according to the embodiment of the present application, a main air pipe joint 11 is formed, and referring to fig. 2 and 6, the main air pipe is screwed to the main air pipe joint 11. The mounting bracket at the top end of the air inlet of the valve body 10 is eliminated, and the main air pipe interface 11 is arranged, so that the main air pipe is in threaded connection with the main air pipe interface 11, and the assembly efficiency of the valve body assembly structure is improved.

In one embodiment, referring to fig. 2, the valve assembly structure includes a sealing ring 50, and the sealing ring 50 is disposed on the main air pipe interface 11, so that the main air pipe and the main air pipe interface 11 are in sealing engagement with each other through the sealing ring 50. That is, the rubber ring is pressed to make sufficient contact to form an airtight seal after screw-fitting between the main air pipe joint 11 of the valve body 10 and the main air pipe.

In the description of the present application, reference to the description of the terms "an embodiment," "in some embodiments," "other embodiments," or "exemplary" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples described herein may be combined by one skilled in the art without contradiction.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (13)

1. A valve body assembling structure characterized by comprising:

a valve body (10), the valve body (10) having a gas passage (10 a);

the gas guide pipe (30) is provided with a gas guide channel (30 a), and the gas guide channel (30 a) is communicated with the gas channel (10 a);

a fixing member (20), the fixing member (20) being disposed on an outer wall of the gas channel (10 a);

connecting piece (40), connecting piece (40) are including cup jointing portion (40 a) and two joint portion (40 b), two joint portion (40 b) sets up relatively the both sides of cup jointing portion (40 a), cup jointing portion (40 a) cover is established on air duct (30), two joint portion (40 b) through respectively with mounting (20) joint makes air duct (30) with valve body (10) sealed cooperation.

2. The valve body assembling structure according to claim 1, wherein each of the catching portions (40 b) catches the fixing member (20) under an elastic force.

3. A valve body assembling structure according to claim 2, wherein said air guide tube (30) comprises a tube body (31), a first flange (32) is formed on an outer surface of a side wall of said tube body (31), and said socket portion (40 a) is fitted over said tube body (31) and abuts against said first flange (32).

4. A valve body assembling structure according to claim 3, wherein said socket part (40 a) is a snap ring having a first opening (40 c), and said pipe body (31) is snapped into said snap ring through said first opening (40 c).

5. The valve body assembling structure according to claim 4, wherein one end of each of the catching portions (40 b) is connected to the snap ring, one end of each of the catching portions (40 b) remote from the snap ring is bent to form a catch, and the fixing member (20) has a catching surface (20 a) matching the shape of the catch, and the catch abuts against the catching surface (20 a).

6. The valve body assembling structure according to claim 5, wherein the connecting member (40) includes a stopper portion (40 d), and one end of each of the hooks, which is away from the snap ring, is connected to the stopper portion (40 d), respectively;

the fixing piece (20) is provided with a limiting groove (20 b), and at least partial region of each limiting part (40 d) is clamped into the limiting groove (20 b).

7. The valve body assembling structure according to claim 6, wherein an end of each of the stopper portions (40 d) remote from the hook is bent to form a grip portion (40 e).

8. A valve body assembling structure according to any one of claims 3 to 7, wherein a stepped surface (10 b) is formed in said gas combustion passage (10 a), and an end of said pipe body (31) provided with said first flange (32) is projected into said gas combustion passage (10 a) and is sealingly engaged with said stepped surface (10 b).

9. A valve body assembling structure according to claim 8, wherein said valve body assembling structure comprises a seal ring (50);

a second flange (33) is formed on the outer surface of the side wall of the pipe body (31), the second flange (33) is positioned between the first flange (32) and the step surface (10 b), and the sealing ring (50) is arranged between the first flange (32) and the second flange (33); or the like, or, alternatively,

the seal ring (50) is arranged between the first flange (32) and the step surface (10 b).

10. A valve body assembling structure according to claim 9, wherein said second flange (33) and said seal ring (50) are plural, and said seal ring (50) is provided between said second flange (33) and said step surface (10 b) and between adjacent two of said second flanges (33).

11. A valve body assembling structure according to claim 1, wherein the valve body assembling structure comprises a main air pipe, and the valve body (10) is formed with a main air pipe joint (11) which is screwed with the main air pipe joint (11).

12. A valve body assembly according to claim 11, wherein the valve body assembly comprises a sealing ring (50), and the sealing ring (50) is sleeved on the main air pipe joint (11) so that the main air pipe and the main air pipe joint (11) are in sealing fit through the sealing ring (50).

13. An electric cooking appliance comprising the valve body assembly structure of any one of claims 1 to 12.

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