Gas distribution valve and stove comprising same

Abstract

The utility model provides a gas distribution valve and a stove comprising the same, and belongs to the technical field of stoves. The gas distribution valve comprises a valve body, a valve element, an inlet channel and a plurality of outlet channels. A valve cavity is formed in the valve body and comprises a main channel and a bypass channel. The valve core is arranged in the main channel; the bypass channel is communicated with the main channel; the inlet channel is communicated with the main channel and the bypass channel; the multiple outlet channels communicate with the circumferential inner side wall of the main channel, and the multiple outlet channels are sequentially arranged in the axial direction of the main channel; the valve element can reciprocate in the axial direction of the main channel so as to block and open the multiple outlet channels respectively. Fuel gas entering from the inlet channel can directly enter the main channel and can also enter the main channel from the bypass channel, and when the valve element moves and blocks a certain outlet channel, the fuel gas can flow out from other outlet channels through the bypass channel. A plurality of outlet channels are connected with different fire outlet rings, opening and closing of the outlet channels can be adjusted at will, and fire adjustment is not limited by increase and decrease of the diameters of the fire outlet rings.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to a gas distribution valve and a stove comprising the same. Background Art

[0002] In order to adjust the firepower, existing stoves usually choose to control the flow rate of gas. When the stove burner has multiple layers of fire rings, the firepower is often related to the diameter of the fire rings: to increase the firepower, the number of fire rings should be increased layer by layer from the inside to the outside, that is, to increase the total diameter of the fire ring; to reduce the firepower, the number of fire rings should be reduced layer by layer from the outside to the inside, that is, to reduce the total diameter of the fire ring. This method leads to poor adjustability of the stove. For example, when the user needs a larger firepower to cook smaller ingredients or a smaller firepower to cook larger ingredients, the existing fire adjustment method cannot meet the user's needs well, affecting the user experience. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the size of the firepower of the stove is related to the diameter of the fire ring, and to provide a gas distribution valve and a stove containing the same.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A gas distribution valve, comprising: a valve body, a valve core, an inlet channel and a plurality of outlet channels; a valve cavity is provided in the valve body, and the valve cavity comprises a main channel and a bypass channel; the valve core is arranged in the main channel; the bypass channel is communicated with the main channel; the inlet channel is communicated with both the main channel and the bypass channel; the plurality of outlet channels are respectively communicated with the circumferential inner side wall of the main channel, and the plurality of outlet channels are arranged in sequence along the axial direction of the main channel; wherein the valve core can reciprocate along the axial direction of the main channel to respectively block and open the plurality of outlet channels.

[0006] In this solution, since the inlet channel is connected to both the main channel and the bypass channel, and the bypass channel is connected to the main channel, the gas entering from the inlet channel can enter the main channel through the bypass channel in addition to directly entering the main channel; and since multiple outlet channels are arranged in sequence along the axial direction of the main channel, when the valve core moves along the axial direction of the main channel and blocks a certain (or several) outlet channels, the gas can enter the main channel through the bypass channel and flow out from other unblocked (i.e., open) outlet channels. Therefore, by connecting multiple outlet channels to different fire rings in the stove burner, the opening and closing of a certain ring can be adjusted arbitrarily, or the opening of different fire rings can be combined, so that the adjustment of the firepower is not limited by the increase or decrease of the diameter of the fire ring, and the firepower adjustment is more free, which improves the user experience.

[0007] Preferably, the two ends along the axial direction of the valve cavity are respectively a base and a connecting cavity; the main channel and the bypass channel are arranged between the base and the connecting cavity; the main channel and the bypass channel are both connected to the connecting cavity; the inlet channel is connected to the connecting cavity.

[0008] In this solution, by providing a connecting cavity in the valve cavity, the inlet channel is connected with the main channel and the bypass channel through the connecting cavity, which is a "transfer station".

[0009] Preferably, the bypass channel is communicated with the radially outer side of the main channel.

[0010] In this scheme, through the above-mentioned structural form, the bypass channel and the main channel are connected, and because the bypass channel is located radially outside the main channel, the bypass channel and the main channel do not interfere with each other. The setting of the bypass channel does not affect the reciprocating motion of the valve core in the main channel.

[0011] Preferably, the bypass channel is communicated with the main channel along the axial direction of the main channel.

[0012] In this solution, the bypass channel is connected with the main channel along the axial direction of the main channel, that is, the bypass channel is connected with the main channel at any point in the axial direction. Therefore, no matter where the valve core moves in the main channel, other positions in the main channel can be connected with the bypass channel, so that the gas entering from the inlet channel can flow to any outlet channel that is not blocked by the valve core.

[0013] Preferably, the gas distribution valve also includes a connecting platform; the connecting platform is arranged in the valve cavity, and the circumferential outer wall of the connecting platform is fitted and connected with the circumferential inner wall of the valve cavity; the radial cross-section of the connecting platform is "C"-shaped, so that a cavity with a notch is formed inside the connecting platform, and the cavity forms the main channel; the notch is opposite to the inner wall of the valve cavity and is spaced a predetermined distance from the inner wall of the valve cavity, so that the bypass channel is formed between the notch and the inner wall of the valve cavity.

[0014] In this scheme, the radial cross-section of the connecting platform is "C"-shaped, and the gap formed will penetrate the connecting platform in the axial direction. Therefore, the bypass channel formed between the gap and the inner wall of the valve cavity realizes the connection of the bypass channel to the radial outer side of the main channel from a radial perspective, and realizes the penetration of the bypass channel with the main channel along the axial direction of the main channel from an axial perspective.

[0015] Preferably, one end along the axial direction of the valve cavity is a base, and one end of the connecting platform in the axial direction is connected to the base; the other end of the connecting platform in the axial direction is spaced a predetermined distance from the end of the valve cavity away from the base, so that a connecting cavity is formed between the connecting platform and the end of the valve cavity away from the base; the inlet channel is connected to the connecting cavity.

[0016] In this solution, one axial end of the connecting platform is connected to the base, limiting the extreme position of the movement of the valve core; the other axial end of the connecting platform is spaced a predetermined distance from the end of the valve cavity away from the base to form a connecting cavity. Even if the valve core moves to the position where the main channel is farthest from the base, the gas entering from the inlet channel can still pass through the connecting cavity unimpeded into the bypass channel from the end of the connecting platform (specifically, the end of the bypass channel away from the base) and then into the main channel. The overall structural layout is reasonable and effective.

[0017] Preferably, the gas distribution valve also includes a driving mechanism and a valve stem; the two ends of the valve stem are respectively connected to the valve core and the driving mechanism, and the driving mechanism is used to drive the valve core to reciprocate along the axial direction of the main channel through the valve stem; the two ends along the axial direction of the valve cavity are respectively a base and a connecting cavity; the main channel and the bypass channel are both connected to the side of the connecting cavity pointing to the base; the driving mechanism is arranged on the side of the connecting cavity away from the base; the inlet channel is connected to the radial side wall of the connecting cavity.

[0018] In this solution, the driving mechanism provides a power source for the movement of the valve core through the valve stem; the driving mechanism is arranged on the side of the connecting cavity away from the base, and the inlet channel is connected to the radial side wall of the connecting cavity, so that the setting of the driving mechanism (or the movement of the valve stem and the valve core) and the setting of the water inlet channel avoid each other and do not affect each other.

[0019] Preferably, the length of the valve core along the axial direction of the main channel is only greater than or equal to the length of one of the outlet channels along the axial direction of the main channel, so that when the valve core blocks one of the outlet channels, the other outlet channels are open.

[0020] In this solution, through the above-mentioned structural form, the gas distribution valve can achieve the effect of controlling which outlet channel is closed.

[0021] A stove comprises a plug valve, a burner and the above-mentioned gas distribution valve; the gas distribution valve is arranged between the plug valve and the burner.

[0022] In this solution, the plug valve is used to control the flow rate of the gas, and the gas distribution valve controls the distribution direction of the gas, so that the gas flow control is separated from the gas distribution control.

[0023] Preferably, the plug valve includes a gas inlet end and a plurality of gas outlet ends; the burner includes an inner ring, a middle ring and an outer ring, the inner ring is located radially inward of the middle ring, and the outer ring is located radially outward of the middle ring; one of the gas outlet ends is communicated with the inner ring; the other of the gas outlet ends is communicated with the inlet channel of the gas distribution valve; in the gas distribution valve, one of the outlet channels is communicated with the middle ring, and the other of the outlet channels is communicated with the outer ring.

[0024] In the present solution, one of the gas outlet ends is connected to the inner ring, and the inner ring can be set to burn after the fire is turned on by default. The other gas outlet end is connected to the inlet channel of the gas distribution valve. One of the outlet channels in the gas distribution valve is connected to the middle ring, and the other is connected to the outer ring. By controlling the opening and closing of the outlet channel in the gas distribution valve, the middle ring or the outer ring can be closed, so that the burner of the entire stove can choose between two firing modes: outer ring, inner ring firing or middle ring, inner ring firing. In each firing mode, the firepower can be adjusted by adjusting the stopcock, so that the adjustment of the firepower is not limited to the increase or decrease in the diameter of the fire ring (or the increase or decrease in the number of fire rings).

[0025] The positive and progressive effects of the utility model are:

[0026] In the utility model, since the inlet channel is connected to both the main channel and the bypass channel, and the bypass channel is connected to the main channel, the gas entering from the inlet channel can enter the main channel through the bypass channel in addition to directly entering the main channel; and since the multiple outlet channels are arranged in sequence along the axial direction of the main channel, when the valve core moves along the axial direction of the main channel and blocks a certain (or several) outlet channels, the gas can enter the main channel through the bypass channel and flow out from other unblocked (i.e., open) outlet channels. Therefore, by connecting the multiple outlet channels to different fire rings in the stove burner, the opening and closing of a certain ring can be arbitrarily adjusted, or the opening of different fire rings can be combined, so that the adjustment of the firepower is not limited by the increase or decrease of the diameter of the fire ring, and the firepower adjustment is more free, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a three-dimensional structural diagram of a gas distribution valve according to a preferred embodiment of the utility model.

[0028] Figure 2 This is a schematic diagram of the exploded structure of a gas distribution valve according to a preferred embodiment of the utility model.

[0029] Figure 3 The figure is a schematic cross-sectional view of a gas distribution valve according to a preferred embodiment of the present utility model.

[0030] Figure 4The figure is a schematic top view of the structure of the valve body in the gas distribution valve according to a preferred embodiment of the utility model.

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve body in the gas distribution valve of the preferred embodiment of the utility model.

[0032] Figure 6 The figure is a schematic diagram of the top view of the stove according to the preferred embodiment of the utility model.

[0033] Description of reference numerals:

[0034] Gas distribution valve 100

[0035] Valve body 110

[0036] Valve chamber 111

[0037] Base 112

[0038] Connecting station 120

[0039] Main channel 130

[0040] Bypass channel 140

[0041] Communication cavity 150

[0042] Valve core 160

[0043] Inlet channel 170

[0044] Exit channel 180

[0045] Driving mechanism 191

[0046] Valve stem 192

[0047] Plug valve 200

[0048] Gas inlet 210

[0049] Gas outlet 220

[0050] Burner 300

[0051] Inner ring 310

[0052] Central 320

[0053] Outer ring 330 DETAILED DESCRIPTION

[0054] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0055] like Figure 6As shown, this embodiment provides a stove, including a stopcock 200 , a burner 300 and a gas distribution valve 100 ; the gas distribution valve 100 is arranged between the stopcock 200 and the burner 300 .

[0056] The stopcock 200 is used to control the gas entering the cooker and adjust the gas flow rate; the gas distribution valve 100 controls the distribution direction of the gas; the burner 300 is used to spray the flame of the ignited gas for users to use in cooking.

[0057] To make the main structure clear, Figure 1 The gas pipeline connecting the stopcock 200, the gas distribution valve 100 and the burner 300 is omitted and not shown.

[0058] like Figure 1-Figure 5 As shown, the gas distribution valve 100 includes: a valve body 110 , a valve core 160 , an inlet channel 170 and a plurality of outlet channels 180 .

[0059] A valve cavity 111 is opened in the valve body 110, and the valve cavity 111 includes a main channel 130 and a bypass channel 140; the valve core 160 is arranged in the main channel 130; the bypass channel 140 is connected to the main channel 130; the inlet channel 170 is connected to both the main channel 130 and the bypass channel 140; a plurality of outlet channels 180 are respectively connected to the circumferential inner side wall of the main channel 130, and the plurality of outlet channels 180 are arranged in sequence along the axial direction of the main channel 130; wherein the valve core 160 can reciprocate along the axial direction of the main channel 130 to respectively block and open the plurality of outlet channels 180.

[0060] Since the inlet channel 170 is connected to both the main channel 130 and the bypass channel 140, and the bypass channel 140 is connected to the main channel 130, the gas entering from the inlet channel 170 can enter the main channel 130 directly as well as through the bypass channel 140; and since the plurality of outlet channels 180 are arranged in sequence along the axial direction of the main channel 130, when the valve core 160 moves along the axial direction of the main channel 130 and blocks a certain (or several) outlet channels 180, the gas can enter the main channel 130 through the bypass channel 140 and flow out from other unblocked (i.e., opened) outlet channels 180. Thus, by connecting the plurality of outlet channels 180 to different fire rings in the stove burner 300, the opening and closing of a certain ring can be adjusted at will, or the opening of different fire rings can be combined, so that the adjustment of the fire power is not limited by the increase or decrease of the diameter of the fire ring, and the fire power adjustment is more free, thereby improving the user experience.

[0061] It can be understood that since the outlet channel 180 is connected to the circumferential inner wall of the main channel 130, and the valve core 160 reciprocates along the axial direction of the main channel 130, the valve core 160 blocks the outlet channel 180 through its circumferential side wall (that is, completes the blocking seal in the radial direction of the main channel 130).

[0062] In order to improve the sealing performance of the valve core 160 in blocking the outlet passage 180 , the valve core 160 is made of rubber in this embodiment.

[0063] Specifically, the bypass passage 140 communicates with the radially outer side of the main passage 130 .

[0064] In this way, the bypass channel 140 is connected to the main channel 130 , and because the bypass channel 140 is located radially outside the main channel 130 , the bypass channel 140 and the main channel 130 do not interfere with each other. The setting of the bypass channel 140 does not affect the reciprocating motion of the valve core 160 in the main channel 130 .

[0065] Furthermore, the bypass channel 140 is communicated with the main channel 130 along the axial direction of the main channel 130 .

[0066] The bypass channel 140 is connected to the main channel 130 along the axial direction of the main channel 130, that is, the bypass channel 140 is connected to the main channel 130 at any point in the axial direction. Therefore, no matter where the valve core 160 moves in the main channel 130, other positions in the main channel 130 can be connected to the bypass channel 140, so that the gas entering from the inlet channel 170 can flow to any outlet channel 180 that is not blocked by the valve core 160.

[0067] In this embodiment, the gas distribution valve 100 further includes a connecting platform 120. The connecting platform 120 is disposed in the valve cavity 111, and the circumferential outer wall of the connecting platform 120 is closely connected to the circumferential inner wall of the valve cavity 111; the radial cross section of the connecting platform 120 is "C"-shaped, so that a cavity with a notch is formed inside the connecting platform 120, and the cavity forms a main channel 130; the notch is directly opposite to the inner wall of the valve cavity 111 and is spaced from the inner wall of the valve cavity 111 by a predetermined distance, so that a bypass channel 140 is formed between the notch and the inner wall of the valve cavity 111.

[0068] The radial cross-section of the connecting platform 120 is "C"-shaped, and the gap formed will penetrate the connecting platform 120 in the axial direction. Therefore, the bypass channel 140 formed between the gap and the inner wall of the valve cavity 111 realizes that the bypass channel 140 is connected to the radial outer side of the main channel 130 from a radial perspective, and realizes that the bypass channel 140 is penetrated by the main channel 130 along the axial direction of the main channel 130 from an axial perspective.

[0069] It can be understood that in order to prevent the valve core 160 from coming out of the main channel 130 and ensure that the main channel 130 has sufficient restraining force on the valve core 160, when the main channel 130 and the valve core 160 are cylindrical as a whole, the width of the notch of the connecting platform 120 should not exceed the diameter length of the main channel 130; in order to make the bypass channel 140 have a sufficient width, the end of the notch of the connecting platform 120 can also be separated from the inner side wall of the valve cavity 111 by a predetermined distance; so that from a radial perspective, the edge profile of the connecting platform 120 on the side facing the inner side wall of the valve cavity 111 is close to an "Ω" shape (such as Figure 4 and Figure 5 shown).

[0070] In this embodiment, a main channel 130 and a bypass channel 140 are formed by adding a connecting platform 120 in the valve cavity 111. In other optional implementations, two sections of pipelines with the same axial length, flush, radially intersecting and connecting can be set in the valve cavity 111 to serve as the main channel 130 and the bypass channel 140.

[0071] Furthermore, the two ends along the axial direction of the valve cavity 111 are respectively a base 112 and a connecting cavity 150; the main channel 130 and the bypass channel 140 are arranged between the base 112 and the connecting cavity 150; the main channel 130 and the bypass channel 140 are both connected to the connecting cavity 150; and the inlet channel 170 is connected to the connecting cavity 150.

[0072] By providing a connecting chamber 150 in the valve chamber 111 , the inlet channel 170 is connected with the main channel 130 and the bypass channel 140 through the connecting chamber 150 , which is a “transfer station”.

[0073] In this embodiment, one axial end of the connecting platform 120 is connected to the base 112; the other axial end of the connecting platform 120 is spaced a predetermined distance from the end of the valve cavity 111 away from the base 112, so that a connecting cavity 150 is formed between the connecting platform 120 and the end of the valve cavity 111 away from the base 112.

[0074] One axial end of the connecting platform 120 is connected to the base 112, limiting the extreme position of the movement of the valve core 160; the connecting chamber 150 is formed by using the other axial end of the connecting platform 120 and the end of the valve chamber 111 away from the base 112 to be spaced a predetermined distance apart. Even if the valve core 160 moves to the position where the main channel 130 is farthest from the base 112, the gas entering from the inlet channel 170 can still pass through the connecting chamber 150 and enter the bypass channel 140 unimpeded from the end of the connecting platform 120 (specifically, the end of the bypass channel 140 away from the base 112), and then enter the main channel 130. The overall structural layout is reasonable and effective.

[0075] Furthermore, the gas distribution valve 100 also includes a driving mechanism 191 and a valve stem 192 .

[0076] Both ends of the valve stem 192 are connected to the valve core 160 and the driving mechanism 191 respectively. The driving mechanism 191 is used to drive the valve core 160 to reciprocate along the axial direction of the main channel 130 through the valve stem 192 .

[0077] The driving mechanism 191 provides a power source for the movement of the valve core 160 through the valve stem 192. In this embodiment, the driving mechanism 191 selects an electromagnetic coil, and the relevant driving principle is the same as that of a conventional electromagnetic valve, which belongs to the prior art and will not be described in detail. In other optional embodiments, the driving mechanism 191 can also select other existing devices that can drive the valve core 160 to reciprocate.

[0078] Specifically, the main channel 130 and the bypass channel 140 are both connected to the side of the connecting cavity 150 pointing to the base 112; the driving mechanism 191 is arranged on the side of the connecting cavity 150 away from the base 112; the inlet channel 170 is connected to the radial side wall of the connecting cavity 150.

[0079] The driving mechanism 191 is arranged on the side of the connecting cavity 150 away from the base 112, and the inlet channel 170 is connected to the radial side wall of the connecting cavity 150, so that the setting of the driving mechanism 191 (or the movement of the valve stem 192 and the valve core 160) and the setting of the water inlet channel avoid each other and do not affect each other.

[0080] Further, in this embodiment, the length of the valve core 160 along the axial direction of the main channel 130 is only greater than or equal to the length of one outlet channel 180 along the axial direction of the main channel 130, so that when the valve core 160 blocks one outlet channel 180, the other outlet channels 180 are opened. Thus, the gas distribution valve 100 can achieve the effect of controlling which outlet channel 180 is closed.

[0081] In other optional embodiments, the length of the valve core 160 along the axial direction of the main channel 130 can also be adjusted so that the valve core 160 can simultaneously block two or more outlet channels 180; the control effect of the gas distribution valve 100 can also be adjusted to control which outlet channel 180 is open.

[0082] like Figure 6 As shown, the plug valve 200 includes a gas inlet end 210 and multiple gas outlet ends 220; the burner 300 includes an inner ring 310, a middle ring 320 and an outer ring 330, the inner ring 310 is located radially inside the middle ring 320, and the outer ring 330 is located radially outside the middle ring 320; one of the gas outlet ends 220 is connected to the inner ring 310; another of the gas outlet ends 220 is connected to the inlet channel 170 of the gas distribution valve 100; in the gas distribution valve 100, one of the outlet channels 180 is connected to the middle ring 320, and another of the outlet channels 180 is connected to the outer ring 330.

[0083] One of the gas outlet ends 220 is connected to the inner ring 310, and the inner ring 310 burns after the fire is turned on by default. The other gas outlet end 220 is connected to the inlet channel 170 of the gas distribution valve 100. One of the outlet channels 180 in the gas distribution valve 100 is connected to the middle ring 320, and the other is connected to the outer ring 330. By controlling the opening and closing of the outlet channel 180 in the gas distribution valve 100, the middle ring 320 or the outer ring 330 can be closed, so that the burner 300 of the entire stove can choose two firing modes: outer ring 330 firing plus inner ring 310 firing or middle ring 320 firing plus inner ring 310 firing. In each firing mode, the firepower can be adjusted by adjusting the stopcock 200, so that the adjustment of the firepower is not limited to the increase or decrease of the diameter of the fire ring (or the increase or decrease of the number of fire rings).

[0084] The number of outlet channels 180 in the gas distribution valve 100 and the number of gas outlet ports 220 in the plug valve 200 can be adjusted according to actual needs.

[0085] In this embodiment, the number of outlet channels 180 in the gas distribution valve 100 and the number of gas outlet ports 220 in the plug valve 200 are both 2 as an example:

[0086] The number of gas outlet ends 220 in the plug valve 200 is 2, one is connected to the inner ring 310, and the other is connected to the inlet channel 170 in the gas distribution valve 100; the number of outlet channels 180 in the gas distribution valve 100 is 2, and the movement of the valve core 160 controls one of them to open and one to close. The two outlet channels 180 are connected to the middle ring 320 and the outer ring 330 respectively, and the movement of the valve core 160 can control the middle ring 320 and the outer ring 330 to open and close, thereby enabling the stove to realize two ignition modes: the outer ring 330 plus the inner ring 310 ignition and the middle ring 320 plus the inner ring 310 ignition, so that the gas flow control is separated from the gas distribution control.

[0087] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A gas distribution valve, characterized in that: It includes: a valve body, a valve core, an inlet channel and a plurality of outlet channels; A valve cavity is formed in the valve body, and the valve cavity includes a main channel and a bypass channel; The valve core is arranged in the main channel; The bypass channel is in communication with the main channel; The inlet channel is in communication with both the main channel and the bypass channel; The plurality of outlet channels are respectively connected to the circumferential inner sidewall of the main channel, and the plurality of outlet channels are arranged in sequence along the axial direction of the main channel; The valve core can reciprocate along the axial direction of the main channel to block and open the plurality of outlet channels respectively.

2. The gas distribution valve according to claim 1, characterized in that: Two ends of the valve cavity along the axial direction are a base and a communication cavity respectively; The main channel and the bypass channel are arranged between the base and the communication cavity; The main channel and the bypass channel are both communicated with the communication chamber; The inlet channel is in communication with the communication cavity.

3. The gas distribution valve according to claim 2, characterized in that: The bypass passage is communicated with the radially outer side of the main passage.

4. The gas distribution valve according to claim 3, characterized in that: The bypass channel penetrates the main channel along the axial direction of the main channel.

5. The gas distribution valve according to claim 4, characterized in that: The gas distribution valve also includes a connecting platform; The communication platform is arranged in the valve cavity, and the circumferential outer wall of the communication platform is closely connected with the circumferential inner wall of the valve cavity; The radial cross section of the connecting platform is "C"-shaped, so that a cavity with a notch is formed inside the connecting platform, and the cavity forms the main channel; The notch faces the inner side wall of the valve cavity and is spaced apart from the inner side wall of the valve cavity by a predetermined distance, so that the bypass channel is formed between the notch and the inner side wall of the valve cavity.

6. The gas distribution valve according to claim 5, characterized in that: One end along the axial direction of the valve cavity is a base, and one end of the connecting platform in the axial direction is connected to the base; The other end of the communication platform in the axial direction is spaced a predetermined distance from the end of the valve cavity away from the base, so that a communication cavity is formed between the communication platform and the end of the valve cavity away from the base; The inlet channel is in communication with the communication cavity.

7. The gas distribution valve according to claim 1, characterized in that: The gas distribution valve also includes a driving mechanism and a valve stem; The two ends of the valve stem are respectively connected to the valve core and the driving mechanism, and the driving mechanism is used to drive the valve core to reciprocate along the axial direction of the main channel through the valve stem; Two ends of the valve cavity along the axial direction are a base and a communication cavity respectively; The main channel and the bypass channel are both connected to a side of the connecting cavity pointing to the base; The driving mechanism is arranged on a side of the communicating cavity away from the base; The inlet channel is in communication with a radial side wall of the communication cavity.

8. The gas distribution valve according to claim 1, characterized in that: The length of the valve core along the axial direction of the main channel is only greater than or equal to the length of one of the outlet channels along the axial direction of the main channel, so that when the valve core blocks one of the outlet channels, the other outlet channels are open.

9. A cooking appliance, characterized in that: The cooker comprises a stopcock, a burner and a gas distribution valve as claimed in any one of claims 1 to 8; The gas distribution valve is arranged between the plug valve and the burner.

10. The cooker according to claim 9, characterized in that: The plug valve comprises a gas inlet end and a plurality of gas outlet ends; The burner comprises an inner ring, a middle ring and an outer ring, wherein the inner ring is located radially inward of the middle ring, and the outer ring is located radially outward of the middle ring; One of the gas outlet ports is in communication with the inner ring; The other of the gas outlet ends is in communication with the inlet passage of the gas distribution valve; In the gas distribution valve, one of the outlet channels is communicated with the middle ring, and the other of the outlet channels is communicated with the outer ring.

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