Reset mechanism of transmission structure, valve and gas stove

Abstract

The reset mechanism of the transmission structure comprises a transmission shaft, the transmission shaft is installed on a shell of a device where the transmission structure is installed and can rotate relative to the shell, a limiting piece is arranged on the shell, and the reset mechanism comprises a reset cam, a reset spring and a reset spring, comprising a cam body and a cam part arranged on the cam body, the cam body is installed on the limiting piece and can slide relative to the limiting piece in the axial direction of the transmission shaft, the transmission shaft is sleeved with the cam part, the cam part can rotate relative to the transmission shaft, and an acting slope is arranged on the first side of the cam part; the reset acting piece is arranged on the transmission shaft and located on the first side of the reset cam, and when the transmission shaft rotates, the reset acting piece can act on the acting inclined face and slide in the circumferential direction along the acting inclined face, and the reset acting piece can reset in the direction from the first end point of the acting inclined face to the second end point of the acting inclined face; and the acting inclined surface is obliquely arranged in the direction close to the reset acting piece.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly to a reset mechanism for a transmission structure, a valve, and a gas stove. Background Art

[0002] In a valve mechanism driven by a motor, the opening and closing of the valve are achieved by controlling the movement of the valve core by the motor. However, in the case of a sudden power failure of the machine, the motor loses power and cannot control the valve mechanism to be in the corresponding state, which easily leads to the valve mechanism being unable to accurately control the opening and closing of the valve. Furthermore, when the machine loses power, the valve mechanism may still be in the open state, and the fluid will continuously flow out through the valve mechanism, causing losses and even danger.

[0003] Therefore, there is an urgent need for a reset mechanism for a transmission structure to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the present invention provides a reset mechanism for a transmission structure, which can ensure that the transmission structure can still be reset when the power is off, thereby ensuring the safety of the device.

[0005] The above object is achieved by the following technical solutions:

[0006] A reset mechanism for a transmission structure, the transmission structure includes a transmission shaft, the transmission shaft is installed on the housing of the device to which the transmission structure is to be installed and can rotate relative to the housing, a limiting member is provided on the housing, and the reset mechanism includes:

[0007] A reset cam, including a cam body and a cam portion provided on the cam body, the cam body is installed on the limiting member and can slide axially relative to the limiting member along the transmission shaft, the cam portion is sleeved on the transmission shaft and can rotate relative to the transmission shaft, and a working inclined surface is provided on the first side of the cam portion;

[0008] A reset working member, which is provided on the transmission shaft and is located on the first side of the reset cam. When the transmission shaft rotates, the reset working member can act on the working inclined surface and slide in the circumferential direction along the working inclined surface. Along the direction from the first end point to the second end point of the working inclined surface, the working inclined surface is inclined towards the reset working member, and the first end point and the second end point are oppositely arranged;

[0009] An elastic reset member, which is provided on the transmission shaft, the first end of the elastic reset member abuts against the second side surface of the reset cam, and the second end of the elastic reset member abuts against the limiting member;

[0010] When the transmission shaft rotates 0° relative to the housing, the reset acting member acts on the first end point, and the elastic reset member is in an extended state; when the transmission shaft rotates 180° relative to the housing, the reset acting member acts on the second end of the acting inclined surface, and the elastic reset member is in a contracted state.

[0011] Optionally, the limiting member includes a limiting member body, one of a guide post and a guide hole is provided on the limiting member body, the other of the guide post and the guide hole is provided on the cam body, the guide post is arranged along the axial direction of the transmission shaft and extends into the guide hole, and the guide post can slide relative to the guide hole.

[0012] Optionally, at least two of the guide posts and the guide holes are provided.

[0013] Optionally, the reset acting member includes an acting member body and an acting rod provided on the acting member body, the acting member body is installed on the transmission shaft, when the transmission shaft rotates, the acting member body can act on the acting inclined surface and slide in the circumferential direction along the acting inclined surface, when the transmission shaft rotates 0° relative to the housing, the acting rod acts on the first end point of the acting inclined surface; when the transmission shaft rotates 180° relative to the housing, the acting rod acts on the second end point of the acting inclined surface.

[0014] Optionally, the acting member body is elastic, and a clamping groove is formed on the acting member body, and the clamping groove is clamped on the transmission shaft.

[0015] Optionally, a groove is formed on the transmission shaft, the clamping groove is clamped at the groove, a first clamping plane is arranged on the inner wall of the clamping groove, a second clamping plane corresponding to the first clamping plane is arranged on the groove bottom surface of the groove, and the first clamping plane is attached to the second clamping plane.

[0016] Optionally, the plane where the first end point is located is a reference plane, the reference plane extends along the radial direction of the transmission shaft, and an included angle β0 is formed between the acting inclined surface and the reference plane, 25° ≤ β0 ≤ 60°.

[0017] Optionally, a limiting connection portion is further provided on the limiting member, and the second end of the elastic reset member is fixedly connected to the limiting connection portion.

[0018] Optionally, the reset cam, the reset acting member and the elastic reset member are integrally formed respectively.

[0019] Another aspect of the present invention provides a valve, comprising the housing, a drive structure, a valve core structure and the above-mentioned reset mechanism, wherein the action slope further comprises a third endpoint and a fourth endpoint located between the first endpoint and the second endpoint, the third endpoint and the fourth endpoint are arranged opposite to each other, the front side of the housing is provided with a first outlet and a second outlet, the rear side of the housing is provided with an inlet, the interior of the housing is provided with a first channel and a second channel, the rear ends of the first channel and the second channel are both connected to the inlet, the front end of the first channel is connected to the first outlet, the front end of the second channel is connected to the second outlet, the drive structure comprises a drive The transmission structure further comprises a first cam and a second cam arranged on the transmission shaft, wherein the driving member can drive the first cam and the second cam to rotate radially along the transmission shaft through the transmission shaft, the first cam and the second cam are distributed in different phases along the radial direction of the transmission shaft, and along the axial direction of the transmission shaft, an avoidance area, a first cam exclusive area, an overlapping area and a second cam exclusive area are formed between the first cam and the second cam, which are sequentially distributed along the radial direction of the transmission shaft, the avoidance area occupies an angle of β1, the first cam exclusive area occupies an angle of β2, the overlap area occupies an angle of β4, the overlap area occupies an angle of β5, the overlap area occupies an angle of β6, the overlap area occupies an angle of β7, the overlap area occupies an angle of β8, the overlap area occupies an angle of β9, the overlap area occupies an angle of β10, the overlap area occupies an angle of β11, the overlap area occupies an angle of β12, the overlap area occupies an angle of β13, the overlap area occupies an angle of β14 The angle occupied by the overlapping area is β3, the angle occupied by the second cam exclusive area is β4, β1+β2+β3+β4=360°, the valve core structure includes a first valve core component and a second valve core component, the first valve core component is arranged in the first channel and is contactably connected to the first cam for transmission, the second valve core component is arranged in the second channel and is contactably connected to the second cam for transmission, an action area is arranged on the housing, when the avoidance area rotates to the action area, the first valve core component and the second valve core component both extend into the action area to close the first channel and the second channel at the same time, at this time the reset action member acts on the a first end point; when the first cam exclusive area rotates to the action area, the first valve core assembly extends into the first channel to close the first channel, and at the same time, the second cam pushes the second valve core assembly to retract into the second channel to open the second channel, and at this time, the reset action member acts on the third end point; when the overlapping area rotates to the action area, the first cam pushes the first valve core assembly to retract into the first channel to open the first channel, and at the same time, the second cam pushes the second valve core assembly to retract into the second channel to open the second channel, and at this time, the reset action member acts on the second end point;When the second cam exclusive area rotates to the acting area, the first cam pushes the first valve core assembly to retract into the first channel to open the first channel. At the same time, the second valve core assembly extends into the second channel to close the second channel. At this time, the reset acting member acts on the fourth end point.

[0020] Optionally, the first valve core assembly includes:

[0021] A first valve stem, slidably connected to the housing. The first end of the first valve stem can slide between the acting area and the first channel. The first cam is in contact and driving connection with the first end of the first valve stem;

[0022] A first reset elastic member, arranged between the first valve stem and the housing;

[0023] A first sealing plug, installed at the second end of the first valve stem. When the first end of the first valve stem retracts into the first channel, the first sealing plug opens the first channel, and the first reset elastic member is in a contracted state. When the avoidance area rotates to the acting area, the first valve stem resets under the restoring force of the first reset elastic member, the first end of the first valve stem extends into the acting area, and the first sealing plug seals the first channel;

[0024] The second valve core assembly includes:

[0025] A second valve stem, slidably connected to the housing. The first end of the second valve stem can slide between the acting area and the second channel. The second cam is in contact and driving connection with the first end of the second valve stem;

[0026] A second reset elastic member, arranged between the second valve stem and the housing;

[0027] A second sealing plug, installed at the second end of the second valve stem. When the first end of the second valve stem retracts into the second channel, the second sealing plug opens the second channel, and the second reset elastic member is in a contracted state. When the avoidance area rotates to the acting area, the second valve stem resets under the restoring force of the second reset elastic member, the first end of the second valve stem extends into the acting area, and the second sealing plug seals the second channel.

[0028] Optionally, the housing includes a bottom case, an upper cover, and the limiting member. The bottom case and the upper cover are detachably connected, and the limiting member is detachably connected to the bottom case. The bottom case and the upper cover are closed to form the first channel and the second channel. The inlet, the first outlet, and the second outlet are all opened on the bottom case. An installation hole is opened on the housing, and the transmission structure is arranged in the installation hole. First openings and second openings are opened on the hole wall of the installation hole. The first opening communicates with the first channel, and the second opening communicates with the second channel. The acting areas are arranged at positions of the installation hole close to the first opening and close to the second opening. The first end of the first valve rod extends into the acting area through the first opening, and the first end of the second valve rod extends into the acting area through the second opening. An opening is arranged at the first end of the installation hole, and a first shaft hole is arranged at the second end of the installation hole. One end of the transmission shaft extends into the first shaft hole and can rotate relative to the first shaft hole. The limiting member is installed at the opening and is used to block the opening. A second shaft hole is opened on the limiting member. The other end of the transmission shaft extends out of the housing through the second shaft hole and is connected to the output end of the driving member. The transmission shaft can rotate relative to the second shaft hole.

[0029] In another aspect, the present invention provides a gas stove, including a first burner, a second burner, and the above-mentioned valve. The gas inlet pipeline of the first burner is communicated with the first outlet, and the gas inlet pipeline of the second burner is communicated with the second outlet.

[0030] Compared with the prior art, the present invention at least includes the following beneficial effects:

[0031] The reset mechanism of the transmission structure provided by the present invention includes a reset cam, a reset acting member, and an elastic reset member. The transmission structure includes a transmission shaft, and the transmission shaft is installed on the housing of the device where the transmission structure is to be installed and can rotate relative to the housing. A limiting member is arranged on the housing. The reset mechanism can ensure that when the device is powered off, the transmission structure can still be reset, ensuring the safety of the device. Description of the Drawings

[0032] Figure 1 is a three-dimensional structural schematic diagram of the valve provided by a specific embodiment of the present invention;

[0033] Figure 2 is Figure 1 exploded view of;

[0034] Figure 3 is an assembly schematic diagram of the transmission structure and the reset mechanism of the valve provided by a specific embodiment of the present invention;

[0035] Figure 4It is a three-dimensional structure schematic diagram of the transmission structure of the valve provided by a specific embodiment of the present invention;

[0036] Figure 5 It is a right view of the transmission structure of the valve provided by a specific embodiment of the present invention;

[0037] Figure 6 It is a three-dimensional structure schematic diagram of the limit member provided by a specific embodiment of the present invention;

[0038] Figure 7 Three-dimensional structure schematic diagram of the reset acting member of the reset mechanism provided by a specific embodiment of the present invention;

[0039] Figure 8 It is a three-dimensional structure schematic diagram of the reset cam of the reset mechanism provided by a specific embodiment of the present invention;

[0040] Figure 9 It is a right view of the reset cam of the reset mechanism provided by a specific embodiment of the present invention;

[0041] Figure 10 It is a bottom view of the reset cam of the reset mechanism provided by a specific embodiment of the present invention;

[0042] Figure 11 It is an assembly schematic diagram of the valve core structure and the upper cover provided by a specific embodiment of the present invention;

[0043] Figure 12 Is Figure 11 Exploded view of;

[0044] Figure 13 It is a three-dimensional structure schematic diagram of the bottom shell of the valve provided by a specific embodiment of the present invention;

[0045] Figure 14 Is Figure 1 Top view of (the avoidance area is rotated to the acting area);

[0046] Figure 15 Is Figure 14 Cross-sectional view taken at A1 - A1 in;

[0047] Figure 16 Is Figure 14 Cross-sectional view taken at A2 - A2 in;

[0048] Figure 17 Is Figure 14 Cross-sectional view taken at A3 - A3 in;

[0049] Figure 18 Is Figure 17 Cross-sectional view taken at A4 - A4 in;

[0050] Figure 19 Is Figure 1Top view (the first cam exclusive area rotates to the acting area);

[0051] Figure 20 is Figure 19 The sectional view at B1 - B1 in ;

[0052] Figure 21 is Figure 19 The sectional view at B2 - B2 in ;

[0053] Figure 22 is Figure 19 The sectional view at B3 - B3 in ;

[0054] Figure 23 is Figure 1 Top view (the overlapping area rotates to the acting area);

[0055] Figure 24 is Figure 23 The sectional view at C1 - C1 in ;

[0056] Figure 25 is Figure 23 The sectional view at C2 - C2 in ;

[0057] Figure 26 is Figure 23 The sectional view at C3 - C3 in ;

[0058] Figure 27 is Figure 26 The sectional view at C4 - C4 in ;

[0059] Figure 28 is Figure 1 Top view (the second cam exclusive area rotates to the acting area);

[0060] Figure 29 is Figure 28 The sectional view at D1 - D1 in ;

[0061] Figure 30 is Figure 28 The sectional view at D2 - D2 in ;

[0062] Figure 31 is Figure 28 The sectional view at D3 - D3 in ;

[0063] Figure 32 Schematic perspective view of the transmission structure provided by some other embodiments of the present invention;

[0064] Figure 33 is Figure 32 Right view of ;

[0065] Figure 34It is a schematic structural diagram of a gas stove provided by a specific embodiment of the present invention.

[0066] In the figure:

[0067] 1. Housing; 11. Bottom shell; 110. First shaft hole; 12. Upper cover; 121. Upper cover body; 1221. First guide rod; 1222. Second guide rod; 1231. First partition member; 1232. Second partition member; 1241. First sealing ring; 1242. Second sealing ring; 1251. First through hole; 1252. Second through hole; 13. Limiting member; 131. Second shaft hole; 132. Guide post; 133. Limiting connection part;

[0068] 2. Transmission structure; 21. Transmission shaft; 210. Groove; 221. First cam; 222. Second cam; 231. First limiting part; 232. Second limiting part;

[0069] 3. Spool structure; 311. First valve rod; 312. First abutting part; 3120. First guide groove; 313. First clamping part; 314. First sealing plug; 315. First reset elastic member; 321. Second valve rod; 322. Second abutting part; 3220. Second guide groove; 324. Second sealing plug; 325. Second reset elastic member;

[0070] 4. Driving member;

[0071] 5. Reset mechanism; 51. Reset acting member; 511. Acting member body; 512. Acting rod; 513. Card slot; 52. Reset cam; 521. Cam body; 522. Cam part; 5221. Acting inclined surface; 523. Guide hole; 53. Elastic reset member;

[0072] 101. Inlet; 1011. First inlet; 1012. Second inlet; 1011. First outlet; 1012. Second outlet; 102. First outlet; 103. Second outlet; 104. Installation hole channel; 1041. Acting area; 105. First channel; 106. Second channel; 1071. First opening; 1072. Second opening;

[0073] 201. First burner; 2011. First gas pipe; 202. Second burner; 2021. Second gas pipe;

[0074] 301. Third sealing ring; 302. Fourth sealing ring;

[0075] S. Avoidance area; N. Second cam exclusive area; R. Overlap area; M. First cam exclusive area; a. First end point; b. Third end point; c. Second end point; d. Fourth end point. Detailed implementation manners

[0076] The following embodiments illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific implementation manners of the present invention or making equivalent replacements for some technical features without departing from the spirit of the present invention's solution shall all be covered within the scope of the technical solution claimed by the present invention.

[0077] Please refer to Figures 1 - 10 , the present invention provides a reset mechanism for a transmission structure. The transmission structure 2 includes a transmission shaft 21, and the transmission shaft 21 is installed on the housing 1 of the device where the transmission structure 2 is to be installed and can rotate relative to the housing 1. A limiting member 13 is provided on the housing 1. The reset mechanism 5 includes a reset cam 52, a reset acting member 51, and an elastic reset member 53. The reset cam 52 includes a cam body 521 and a cam portion 522 provided on the cam body 521. The cam body 521 is installed on the limiting member 13 and can slide relative to the limiting member 13 along the axial direction of the transmission shaft 21. The cam portion 522 is sleeved on the transmission shaft 21 and can rotate relative to the transmission shaft 21. A acting inclined surface 5221 is provided on the first side of the cam portion 522. The reset acting member 51 is provided on the transmission shaft 21 and is located on the first side of the reset cam 52. When the transmission shaft 21 rotates, the reset acting member 51 can act on the acting inclined surface 5221 and slide in the circumferential direction along the acting inclined surface 5221. Along the direction from the first end point a to the second end point c of the acting inclined surface 5221, the acting inclined surface 5221 is inclined towards the direction close to the reset acting member 51, and the first end point a and the second end point c are oppositely arranged. The elastic reset member 53 is provided on the transmission shaft 21. The first end of the elastic reset member 53 abuts against the second side surface of the reset cam 52, and the second end of the elastic reset member 53 abuts against the limiting member 13. When the transmission shaft 21 rotates 0° relative to the housing 1, the reset acting member 51 acts on the first end point a, and the elastic reset member 53 is in an extended state; when the transmission shaft 21 rotates 180° relative to the housing 1, the reset acting member 51 acts on the second end of the acting inclined surface 5221, and the elastic reset member 53 is in a contracted state. In this way, when the transmission shaft 21 rotates 180° relative to the housing 1 and the transmission structure 2 lacks the power source provided by the driving member 4, the transmission shaft 21 can, under the restoring force of the elastic reset member 53, act on the reset acting member 51 through the acting inclined surface 5221, thereby driving the reset acting member 51 to slide and rotate along the acting inclined surface 5221. The reset acting member 51 drives the transmission shaft 21 to reset to the position where the transmission shaft 21 rotates 0° relative to the housing 1, thereby realizing the reset of the transmission structure 2, that is, ensuring that when the device is powered off, the transmission structure 2 can still be reset, ensuring the safety of the device.

[0078] It should be noted that in this embodiment, the device where the transmission structure 2 is to be installed is a valve. In other embodiments, the device where the transmission structure 2 is to be installed can also be other mechanisms that need to be controlled to open and close through the transmission structure 2, which is not limited here.

[0079] Optionally, the limiting member 13 includes a limiting member body, on which one of a guide post 132 and a guide hole 523 is provided, and on the cam body 521, the other of the guide post 132 and the guide hole 523 is provided. The guide post 132 is arranged along the axial direction of the transmission shaft 21 and extends into the guide hole 523. The guide post 132 can slide relative to the guide hole 523. In this way, the cam body 521 can slide along the axial direction of the transmission shaft 21 without rotating relative to the transmission shaft 21. Furthermore, the cam body 521 can push the reset member 51 to drive the transmission shaft 21 to rotate and reset.

[0080] Optionally, at least two guide posts 132 and guide holes 523 are provided to ensure the stability of guiding the cam body 521.

[0081] Optionally, the reset member 51 includes a member body 511 and an action rod 512 provided on the member body 511. The member body 511 is installed on the transmission shaft 21. When the transmission shaft 21 rotates, the action rod 512 can act on the action inclined surface 5221 and slide in the circumferential direction along the action inclined surface 5221. When the transmission shaft 21 rotates 0° relative to the housing 1, the action rod 512 acts on the first end point a of the action inclined surface 5221; when the transmission shaft 21 rotates 180° relative to the housing 1, the action rod 512 acts on the second end point c of the action inclined surface 5221.

[0082] Optionally, the member body 511 has elasticity, and a clamping groove 513 is formed on the member body 511. The clamping groove 513 is clamped on the transmission shaft 21 to realize the installation of the member body 511 on the transmission shaft 21.

[0083] Optionally, a groove 210 is formed on the transmission shaft 21, and the clamping groove 513 is clamped at the groove 210. A first clamping plane is arranged on the inner wall of the clamping groove 513, and a second clamping plane corresponding to the first clamping plane is arranged on the groove bottom surface of the groove 210. The first clamping plane is attached to the second clamping plane, so as to realize the axial and circumferential limiting of the member body 511 and the transmission shaft 21, ensure the installation stability of the member body 511 on the transmission shaft 21, and has a simple and compact structure and convenient installation.

[0084] Optionally, the plane where the first end point a is located is the reference plane, and the reference plane extends along the radial direction of the transmission shaft 21. There is an included angle β0 between the acting inclined plane 5221 and the reference plane, and 25° ≤ β0 ≤ 60°, so that the acting inclined plane 5221 has sufficient slope to smoothly push the reset acting member 51 to rotate.

[0085] Exemplarily, in this embodiment, β0 is 30°.

[0086] Optionally, a limit connection portion 133 is further provided on the limiting member 13, and the second end of the elastic reset member 53 is fixedly connected to the limit connection portion 133, so as to realize the circumferential limit of the elastic reset member 53 on the transmission shaft 21 and prevent the elastic reset member 53 from rotating along with the transmission shaft 21.

[0087] Optionally, the reset cam 52, the reset acting member 51 and the elastic reset member 53 are integrally formed respectively, with a simple and compact structure and good strength.

[0088] Please refer to Figures 1 - 31, on the other hand, the present invention provides a valve, including a housing 1, a driving structure, a valve core structure 3, and the above-mentioned reset mechanism 5. The acting inclined surface 5221 further includes a third end point b and a fourth end point d located between the first end point a and the second end point c. The third end point b and the fourth end point d are oppositely arranged. The front side of the housing 1 is provided with a first outlet 102 and a second outlet 103, and the rear side of the housing 1 is provided with an inlet 101. The interior of the housing 1 is provided with a first channel 105 and a second channel 106. The rear ends of the first channel 105 and the second channel 106 are both communicated with the inlet 101, the front end of the first channel 105 is communicated with the first outlet 102, and the front end of the second channel 106 is communicated with the second outlet 103. The driving structure includes a driving member 4 and the above-mentioned transmission structure 2 that is in transmission connection with the driving member 4. The transmission structure 2 further includes a first cam 221 and a second cam 222 arranged on the transmission shaft 21. The driving member 4 can drive the first cam 221 and the second cam 222 to rotate along the radial direction of the transmission shaft 21 through the transmission shaft 21. The first cam 221 and the second cam 222 are distributed in different phases along the radial direction of the transmission shaft 21. And along the axial direction of the transmission shaft 21, an avoidance area S, a first cam exclusive area M, an overlapping area R, and a second cam exclusive area N are formed in sequence along the radial direction of the transmission shaft 21. The angle occupied by the avoidance area S is β1, the angle occupied by the first cam exclusive area M is β2, the angle occupied by the overlapping area R is β3, and the angle occupied by the second cam exclusive area N is β4, and β1 + β2 + β3 + β4 = 360°. The valve core structure 3 includes a first valve core assembly and a second valve core assembly. The first valve core assembly is arranged in the first channel 105 and is in contact and transmission connection with the first cam 221. The second valve core assembly is arranged in the second channel 106 and is in contact and transmission connection with the second cam 222. The housing 1 is provided with an acting area 1041. When the avoidance area S rotates to the acting area 1041, both the first valve core assembly and the second valve core assembly extend into the acting area 1041 to simultaneously close the first channel 105 and the second channel 106. At this time, the reset acting member 51 acts on the first end point a; when the first cam exclusive area M rotates to the acting area 1041, the first valve core assembly extends into the first channel 105 to close the first channel 105, and at the same time, the second cam 222 pushes the second valve core assembly to retract into the second channel 106 to open the second channel 106. At this time, the reset acting member 51 acts on the third end point b; when the overlapping area R rotates to the acting area 1041, the first cam 221 pushes the first valve core assembly to retract into the first channel 105 to open the first channel 105, and at the same time, the second cam 222 pushes the second valve core assembly to retract into the second channel 106 to open the second channel 106. At this time, the reset acting member 51 acts on the second end point c;When the second cam exclusive area N rotates to the acting area 1041, the first cam 221 pushes the first valve core assembly to retract into the first channel 105 to open the first channel 105. At the same time, the second valve core assembly extends into the second channel 106 to close the second channel 106. At this time, the reset acting member 51 acts on the fourth end point d. When the valve is powered off, the driving member 4 stops providing power to the transmission shaft 21. At this time, the transmission shaft 21 can be reset to the position where it rotates 0° relative to the housing 1 under the action of the reset mechanism 5. At this time, the avoidance area S rotates to the acting area 1041, and both the first valve core assembly and the second valve core assembly extend into the acting area 1041 to close the first channel 105 and the second channel 106 simultaneously, so that the valve is in a fully closed state to prevent gas from flowing out through the valve.

[0089] It should be noted that in this embodiment, the application object of the valve is a gas stove for controlling the gas flow of the gas stove. In other embodiments, the valve mechanism provided in this embodiment can also be applied to other devices that require a one-in-two-out valve.

[0090] Optionally, the first valve core assembly includes a first valve stem 311, a first reset elastic member 315, and a first sealing plug 314. The first valve stem 311 is slidably connected to the housing 1. The first end portion of the first valve stem 311 can slide between the action area 1041 and the first channel 105. The first cam 221 is in contact and driving connection with the first end portion of the first valve stem 311. The first reset elastic member 315 is disposed between the first valve stem 311 and the housing 1. The first sealing plug 314 is installed at the second end portion of the first valve stem 311. When the first end portion of the first valve stem 311 retracts into the first channel 105, the first sealing plug 314 opens the first channel 105, and the first reset elastic member 315 is in a contracted state. When the avoidance area S rotates to the action area 1041, the first valve stem 311 is reset under the restoring force of the first reset elastic member 315. The first end portion of the first valve stem 311 extends into the action area 1041, and the first sealing plug 314 blocks the first channel 105. The second valve core assembly includes a second valve stem 321, a second reset elastic member 325, and a second sealing plug 324. The second valve stem 321 is slidably connected to the housing 1. The first end portion of the second valve stem 321 can slide between the action area 1041 and the second channel 106. The second cam 222 is in contact and driving connection with the first end portion of the second valve stem 321. The second reset elastic member 325 is disposed between the second valve stem 321 and the housing 1. The second sealing plug 324 is installed at the second end portion of the second valve stem 321. When the first end portion of the second valve stem 321 retracts into the second channel 106, the second sealing plug 324 opens the second channel 106, and the second reset elastic member 325 is in a contracted state. When the avoidance area S rotates to the action area 1041, the second valve stem 321 is reset under the restoring force of the second reset elastic member 325. The first end portion of the second valve stem 321 extends into the action area 1041, and the second sealing plug 324 blocks the second channel 106. By providing the first reset elastic member 315 and the second reset elastic member 325, when the first valve stem 311 is disengaged from the first cam 221, the first valve stem 311 is automatically reset to drive the first plug to block the first channel 105. When the second valve stem 321 is disengaged from the second cam 222, the second valve stem 321 is automatically reset to drive the second plug to block the second channel 106. The structure is simple and compact, and there is no need to separately provide a driving source, and the structure is simple.

[0091] Optionally, the first spool assembly further includes a first guiding structure, which is arranged on the housing 1 and extends along the sliding direction of the first valve stem 311. The first valve stem 311 and the first return elastic member 315 are both slidably connected to the first guiding structure. The second spool assembly further includes a second guiding structure, which is arranged on the housing 1 and extends along the sliding direction of the second valve stem 321. The second valve stem 321 and the second return elastic member 325 are both slidably connected to the second guiding structure. By providing the first guiding structure to guide the first valve stem 311 and the first return elastic member 315, the first valve stem 311 and the first return elastic member 315 can always slide along a preset direction, ensuring the movement stability of the first valve stem 311 and the first return elastic member 315. By providing the second guiding structure to guide the second valve stem 321 and the second return elastic member 325, the second valve stem 321 and the second return elastic member 325 can always slide along a preset direction, ensuring the movement stability of the second valve stem 321 and the second return elastic member 325.

[0092] Specifically, both the first return elastic member 315 and the second return elastic member 325 are springs, with simple structures and easy material acquisition.

[0093] Optionally, the first guiding structure includes at least two first guiding rods 1221 arranged at intervals and at least two first guiding grooves 3120 provided at the second end of the first valve stem 311. There are at least two first restoring elastic members 315. The first guiding rods 1221 extend along the sliding direction of the first valve stem 311. The first guiding rods 1221, the first guiding grooves 3120 and the first restoring elastic members 315 are arranged in one-to-one correspondence. The first restoring elastic members 315 are sleeved outside the first guiding rods 1221. The first guiding rods 1221 extend into the first guiding grooves 3120. Both the first restoring elastic members 315 and the first guiding grooves 3120 can slide along the first guiding rods 1221. By providing at least two first guiding rods 1221, at least two first guiding grooves 3120 and at least two first restoring elastic members 315, the guiding effect on the first valve stem 311 and the first restoring elastic members 315 is ensured. The second guiding structure includes at least two second guiding rods 1222 arranged at intervals and at least two second guiding grooves 3220 provided at the second end of the second valve stem 321. There are at least two second restoring elastic members 325. The second guiding rods 1222 extend along the sliding direction of the second valve stem 321. The second guiding rods 1222, the second guiding grooves 3220 and the second restoring elastic members 325 are arranged in one-to-one correspondence. The second restoring elastic members 325 are sleeved outside the second guiding rods 1222. The second guiding rods 1222 extend into the second guiding grooves 3220. Both the second restoring elastic members 325 and the second guiding grooves 3220 can slide along the second guiding rods 1222. By providing at least two second guiding rods 1222, at least two first guiding grooves 3120 and at least two first restoring elastic members 315, the guiding effect on the second valve stem 321 and the second restoring elastic members 325 is ensured.

[0094] Further, in this embodiment, there are two first guiding grooves 3120, two first guiding rods 1221, two first restoring elastic members 315, two second guiding grooves 3220, two second guiding rods 1222 and two second restoring elastic members 325. The two first guiding grooves 3120 are arranged oppositely, the two first guiding rods 1221 are arranged oppositely, the two first restoring elastic members 315 are arranged oppositely, the two second guiding grooves 3220 are arranged oppositely, the two second guiding rods 1222 are arranged oppositely, and the two second restoring elastic members 325 are arranged oppositely, so that the first valve stem 311 and the second valve stem 321 can be stressed evenly, thereby further ensuring the improvement of the movement stability of the first valve stem 311.

[0095] Optionally, the first guiding structure further includes at least two first abutting portions 312 provided at the second end of the first valve stem 311. The first abutting portions 312 are provided in one-to-one correspondence with the first guiding rods 1221. The first guiding grooves 3120 are formed in the first abutting portions 312. The first abutting portions 312 abut against the first reset elastic member 315, and the structure is simple and compact. The second guiding structure further includes at least two second abutting portions 322 provided at the second end of the second valve stem 321. The second abutting portions 322 are provided in one-to-one correspondence with the second guiding rods 1222. The second guiding grooves 3220 are formed in the second abutting portions 322. The second abutting portions 322 abut against the second reset elastic member 325, and the structure is simple and compact.

[0096] Optionally, the housing 1 includes a bottom shell 11, an upper cover 12 and a limiting member 13. The bottom shell 11 and the upper cover 12 are detachably connected. The limiting member 13 is detachably connected to the bottom shell 11. The bottom shell 11 and the upper cover 12 are closed to form a first channel 105 and a second channel 106. The inlet 101, the first outlet 102 and the second outlet 103 are all formed in the bottom shell 11. An installation hole 104 is formed in the housing 1. The transmission structure 2 is arranged in the installation hole 104. A first opening 1071 and a second opening 1072 are formed in the hole wall of the installation hole 104. The first opening 1071 communicates with the first channel 105, and the second opening 1072 communicates with the second channel 106. Acting areas 1041 are arranged at positions of the installation hole 104 close to the first opening 1071 and close to the second opening 1072. The first end of the first valve stem 311 extends into the acting area 1041 through the first opening 1071, and the first end of the second valve stem 321 extends into the acting area 1041 through the second opening 1072. By arranging the installation hole 104 on the housing 1 to arrange the transmission structure 2, the transmission structure 2 can be separated from the first channel 105 and the second channel 106 to a large extent (only the first opening 1071 communicates between the first channel 105 and the installation hole 104, and only the second opening 1072 communicates between the second channel 106 and the installation hole 104), which can reduce the resistance of the transmission structure 2 to the flowing gas to a large extent and ensure the flow velocity of the gas. An opening is arranged at the first end of the installation hole 104, and a first shaft hole 110 is arranged at the second end of the installation hole 104. One end of the transmission shaft 21 extends into the first shaft hole 110 and can rotate relative to the first shaft hole 110. The limiting member 13 is installed at the opening and is used for blocking the opening. A second shaft hole 131 is formed in the limiting member 13. The other end of the transmission shaft 21 extends out of the housing 1 from the second shaft hole 131 and is connected to the output end of the driving member 4. The transmission shaft 21 can rotate relative to the second shaft hole 131. By arranging the limiting member 13, on the one hand, the transmission structure can be realized

[0097] On the one hand, the second package is installed in the installation hole 104, and on the other hand, the installation of the transmission shaft 21 can be realized. The structure is simple and compact. On the other hand, it is beneficial to provide the guiding column 132 (or the guiding hole 523) and the limiting connection part 133 on the independent limiting part 13, which is convenient for production and preparation.

[0098] Optionally, the upper cover 12 includes the upper cover 12 body, the first partition member 1231 and the second partition member 1232 provided on the upper cover 12 body. The first partition member 1231 extends into the first channel 105 and partitions the first channel 105. The second partition member 1232 extends into the second channel 106 and partitions the second channel 106. The first through hole 1251 is formed in the first partition member 1231, and the second through hole 1252 is formed in the second partition member 1232. The first valve core assembly and the second valve core assembly are both provided on the upper cover 12. When the first end portion of the first valve rod 311 retracts into the first channel 105, the first sealing plug 314 seals the first through hole 1251, thereby realizing the sealing of the first channel 105. When the first end portion of the first valve rod 311 extends into the acting area 1041, the first sealing plug 314 opens the first through hole 1251, thereby realizing the opening of the first channel 105. When the first end portion of the second valve rod 321 retracts into the second channel 106, the second sealing plug 324 seals the second through hole 1252, thereby realizing the sealing of the second channel 106. When the first end portion of the second valve rod 321 extends into the acting area 1041, the second sealing plug 324 opens the second through hole 1252, thereby realizing the opening of the second channel 106.

[0099] Optionally, a first sealing ring 1241 and a second sealing ring 1242 are further included. The first sealing ring 1241 is arranged on the first through hole 1251 and is used to cooperate with the first sealing plug 314 to seal the gap between the first through hole 1251 and the first sealing plug 314 when the first sealing plug 314 seals the first through hole 1251, so as to improve the sealing effect of the first channel 105. The second sealing ring 1242 is arranged on the second through hole 1252 and is used to cooperate with the second sealing plug 324 to seal the gap between the second through hole 1252 and the second sealing plug 324 when the second sealing plug 324 seals the second through hole 1252, so as to improve the sealing effect of the second channel 106.

[0100] Optionally, a first sealing member is arranged between the first partition member 1231 and the inner wall of the first channel 105 to seal the gap between the first partition member 1231 and the first channel 105, and prevent the gas from flowing out through the gap between the first partition member 1231 and the first channel 105. A second sealing member is arranged between the second partition member 1232 and the inner wall of the second channel 106 to seal the gap between the second partition member 1232 and the second channel 106, and prevent the gas from flowing out through the gap between the second partition member 1232 and the second channel 106.

[0101] Optionally, there are two first partition members 1231 and two second partition members 1232. The two first partition members 1231 are arranged at intervals along the extending direction of the first channel 105, and the first valve core assembly is arranged between the two first partition members 1231. There are two first sealing plugs 314, and the two first sealing plugs 314 are arranged in one-to-one correspondence with two first through holes 1251 opened on the first partition members 1231. By providing the two first sealing plugs 314 and the two first through holes 1251, the first sealing plugs 314 can achieve a double-blocking effect on the first channel 105, avoiding the problem that the first channel 105 cannot be normally blocked when one of the first sealing plugs 314 fails. The two second partition members 1232 are arranged at intervals along the extending direction of the second channel 106, and the second valve core assembly is arranged between the two second partition members 1232. There are two second sealing plugs 324, and the two second sealing plugs 324 are arranged in one-to-one correspondence with two second through holes 1252 opened on the second partition members 1232. By providing the two second sealing plugs 324 and the two second through holes 1252, the second sealing plugs 324 can achieve a double-blocking effect on the second channel 106, avoiding the problem that the second channel 106 cannot be normally blocked when one of the second sealing plugs 324 fails. In this way, the reliability of the valve can be improved.

[0102] Optionally, two relatively arranged first clamping portions 313 are provided at the second end of the first valve stem 311, and the first plug is mounted on the first clamping portions 313. Two relatively arranged second clamping portions are provided at the second end of the second valve stem 321, and the second plug is mounted on the second clamping portions.

[0103] Optionally, a third sealing ring 301 and a fourth sealing ring 302 are further included. The third sealing ring 301 is arranged on the inner wall of the first opening 1071 and protrudes towards the center of the first opening 1071 from the inner wall of the first opening 1071. The fourth sealing ring 302 is arranged on the inner wall of the second opening 1072 and protrudes towards the center of the second opening 1072 from the inner wall of the second opening 1072. When the first end of the first valve stem 311 extends into the action area 1041 through the first opening 1071, the third sealing ring 301 abuts against the circumferential side of the first valve stem 311. When the first end of the second valve stem 321 extends into the action area 1041 through the second opening 1072, the fourth sealing ring 302 abuts against the circumferential side of the second valve stem 321. By providing the third sealing ring 301 and the fourth sealing ring 302, it is possible to prevent the gas from flowing out through the gaps between the first opening 1071 and the first valve stem 311 and between the second opening 1072 and the second valve stem 321.

[0104] Optionally, in this embodiment, β1 = β2 = β3 = β4 = 90°.

[0105] Please refer to Figure 32 and Figure 33 , in some other embodiments, β1 = 70°, β2 = 90°, β3 = 140°, β4 = 60°, and the values of β1, β2, β3, and β4 can also be different from each other. As long as 360° is divided into four parts, and the avoidance area S, the first cam exclusive area M, the overlapping area R, and the second cam exclusive area N are formed simultaneously.

[0106] Optionally, the mounting hole 104 is provided in the bottom case 11.

[0107] Optionally, it further includes a limiting member 13. An opening is provided at the first end of the mounting hole 104, and a first shaft hole 110 is provided at the second end of the mounting hole 104. One end of the transmission shaft 21 extends into the first shaft hole 110 and can rotate relative to the first shaft hole 110. The limiting member 13 is installed at the opening for blocking the opening. A second shaft hole 131 is provided on the limiting member 13. The other end of the transmission shaft 21 extends out of the outer side of the housing 1 from the second shaft hole 131 and is connected to the output end of the driving member 4. The transmission shaft 21 can rotate relative to the second shaft hole 131. By providing the limiting member 13, on the one hand, the transmission structure 2 can be encapsulated in the mounting hole 104, and on the other hand, the installation of the transmission shaft 21 can be realized, and the structure is simple and compact.

[0108] Furthermore, the transmission structure 2 further includes a first limiting portion 231 and a second limiting portion 232 provided on the transmission shaft 21. The first limiting portion 231 is provided between the first shaft hole 110 and the first cam 221 and is in contact with the hole wall of the mounting hole 104 where the first shaft hole 110 is located. The second limiting portion 232 is provided between the second shaft hole 131 and the second cam 222 and is in contact with the inner wall of the limiting member 13, so as to realize the limitation of the transmission shaft 21 in the mounting hole 104 and ensure the movement stability of the transmission shaft 21.

[0109] Furthermore, both between the bottom case 11 and the upper cover 12 and between the limiting member 13 and the bottom case 11 are detachably connected by screws.

[0110] Optionally, the inlet 101 includes a first inlet 1011 and a second inlet 1012. The first inlet 1011 and the second inlet 1012 are provided at the rear side of the bottom case 11, and the first outlet 102 and the second outlet 103 are provided at the front side of the bottom case 11. The first inlet 1011 is communicated with the rear side of the first channel 105, and the second inlet 1012 is communicated with the rear side of the second channel 106.

[0111] Please refer to Figure 34, on the other hand, the present invention provides a gas stove, which includes a first burner 201, a second burner 202 and the above valve. The gas inlet pipeline of the first burner 201 is communicated with the first outlet 102, and the gas inlet pipeline of the second burner 202 is communicated with the second outlet 103.

[0112] Optionally, it further includes a first gas pipe 2011 and a second gas pipe 2021. The gas inlet pipeline of the first burner 201 is communicated with the first outlet 102 through the first gas pipe 2011, and the gas inlet pipeline of the second burner 202 is communicated with the second outlet 103 through the second gas pipe 2021.

[0113] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A reset mechanism for a transmission structure, characterized in that, The transmission structure (2) includes a transmission shaft (21). The transmission shaft (21) is installed on the housing (1) of the device on which the transmission structure (2) is to be installed and can rotate relative to the housing (1). A limiting member (13) is provided on the housing (1). The reset mechanism includes: A reset cam (52), including a cam body (521) and a cam portion (522) provided on the cam body (521). The cam body (521) is installed on the limiting member (13) and can slide axially along the transmission shaft (13) relative to the limiting member (13). The cam portion (522) is sleeved on the transmission shaft (21) and can rotate relative to the transmission shaft (21). A working inclined surface (5221) is provided on the first side of the cam portion (522); A reset working member (51) is provided on the transmission shaft (21) and is located on the first side of the reset cam (52). When the transmission shaft (21) rotates, the reset working member (51) can act on the working inclined surface (5221) and slide in the circumferential direction along the working inclined surface (5221). Along the direction from the first end point (a) to the second end point (c) of the working inclined surface (5221), the working inclined surface (5221) is inclined towards the reset working member (51). The first end point (a) and the second end point (c) are oppositely arranged; An elastic reset member (53) is provided on the transmission shaft (21). The first end of the elastic reset member (53) abuts against the second side surface of the reset cam (52), and the second end of the elastic reset member (53) abuts against the limiting member (13); When the transmission shaft (21) rotates 0° relative to the housing (1), the reset working member (51) acts on the first end point (a), and the elastic reset member (53) is in an extended state; when the transmission shaft (21) rotates 180° relative to the housing (1), the reset working member (51) acts on the second end of the working inclined surface (5221), and the elastic reset member (53) is in a contracted state.

2. The reset mechanism of the transmission structure according to claim 1, characterized in that, The limiting member (13) includes a limiting member body (130). One of a guide post (132) and a guide hole (523) is provided on the limiting member body (130), and the other of the guide post (132) and the guide hole (523) is provided on the cam body (521). The guide post (132) is arranged axially along the transmission shaft (21) and extends into the guide hole (523). The guide post (132) can slide relative to the guide hole (523).

3. The reset mechanism of the transmission structure according to claim 2, characterized in that, At least two of the guide posts (132) and the guide holes (523) are provided.

4. The reset mechanism of the transmission structure according to claim 1, wherein, The reset acting member (51) includes an acting member body (511) and an acting rod (512) provided on the acting member body (511). The acting member body (511) is mounted on the transmission shaft (21). When the transmission shaft (21) rotates, the acting member body (511) can act on the acting inclined surface (5221) and slide in the circumferential direction along the acting inclined surface (5221). When the transmission shaft (21) rotates 0° relative to the housing (1), the acting rod (512) acts on the first end point (a) of the acting inclined surface (5221); when the transmission shaft (21) rotates 180° relative to the housing (1), the acting rod (512) acts on the second end point (c) of the acting inclined surface (5221).

5. The reset mechanism of the transmission structure according to claim 4, characterized in that, The acting member body (511) is elastic, and a clamping groove (513) is formed on the acting member body (511). The clamping groove (513) is clamped on the transmission shaft (21).

6. The reset mechanism according to claim 5, characterized in that, A groove (210) is formed on the transmission shaft (21). The clamping groove (513) is clamped at the groove (210). A first clamping plane is provided on the inner wall of the clamping groove (513), and a second clamping plane corresponding to the first clamping plane is provided on the groove bottom surface of the groove (210). The first clamping plane and the second clamping plane are in fit contact.

7. The reset mechanism according to any one of claims 1-6, characterized in that, The plane where the first end point (a) is located is a reference plane. The reference plane extends along the radial direction of the transmission shaft (21). An included angle β0 exists between the acting inclined surface (5221) and the reference plane, and 25° ≤ β0 ≤ 60°.

8. The reset mechanism according to any one of claims 1-6, characterized in that, A limit connection part (133) is further provided on the limit member (13). The second end of the elastic reset member (53) is fixedly connected to the limit connection part (133).

9. The reset mechanism according to any one of claims 1-6, characterized in that The reset cam (52), the reset acting member (51), and the elastic reset member (53) are integrally formed respectively.

10. A valve, characterized in that, The invention comprises a housing (1), a driving structure, a valve core structure (3) and a reset mechanism (5) according to any one of claims 1 to 9, wherein the action inclined surface (5221) further comprises a third end point (b) and a fourth end point (d) located between the first end point (a) and the second end point (c), the third end point (b) and the fourth end point (d) are arranged opposite to each other, the front side of the housing (1) is provided with a first outlet (102) and a second outlet (103), the rear side of the housing (1) is provided with an inlet (101), the interior of the housing (1) is provided with a first channel (105) and a second channel (106), the first channel (105) and the second channel (106) are arranged The rear ends of the first channel (105) and the second channel (106) are connected to the inlet (101), the front ends of the first channel (105) and the second outlet (102), the front ends of the second channel (106) and the second outlet (103), the driving structure comprises a driving member (4) and a transmission structure (2) connected to the driving member (4), the transmission structure (2) further comprising a first cam (221) and a second cam (222) arranged on the transmission shaft (21), the driving member (4) can drive the first cam (221) and the second cam (222) to rotate along the radial direction of the transmission shaft (21) through the transmission shaft (21), the first cam (221) and the second cam (222) can rotate along the radial direction of the transmission shaft (21), and the first cam (221) and the second cam (222) can rotate along the radial direction of the transmission shaft (21). and the second cam (222) are distributed in different phases along the radial direction of the transmission shaft (21), and along the axial direction of the transmission shaft (21), a avoidance area (S), a first cam exclusive area (M), an overlapping area (R) and a second cam exclusive area (N) are formed between the first cam (221) and the second cam (222) in sequence along the radial direction of the transmission shaft (21), the avoidance area (S) occupies an angle β1, the first cam exclusive area (M) occupies an angle β2, the overlapping area (R) occupies an angle β3, and the second cam exclusive area (N) occupies an angle β4, β1+β2+β3+β4=360°, and the valve core structure (3) comprises a first a valve core assembly and a second valve core assembly, wherein the first valve core assembly is arranged in the first channel (105) and is in contact and transmission connection with the first cam (221), and the second valve core assembly is arranged in the second channel (106) and is in contact and transmission connection with the second cam (222), and an action area (1041) is arranged on the housing (1), and when the avoidance area (S) rotates to the action area (1041), the first valve core assembly and the second valve core assembly both extend into the action area (1041) to simultaneously close the first channel (105) and the second channel (106), and at this time, the reset action member (51) acts on the first end point (a);When the first cam exclusive region (M) rotates to the acting region (1041), the first valve core assembly extends into the first channel (105) to close the first channel (105). Meanwhile, the second cam (222) pushes the second valve core assembly to retract into the second channel (106) to open the second channel (106). At this time, the reset acting member (51) acts on the third end point (b). When the overlapping region (R) rotates to the acting region (1041), the first cam (221) pushes the first valve core assembly to retract into the first channel (105) to open the first channel (105). Meanwhile, the second cam (222) pushes the second valve core assembly to retract into the second channel (106) to open the second channel (106). At this time, the reset acting member (51) acts on the second end point (c). When the second cam exclusive region (N) rotates to the acting region (1041), the first cam (221) pushes the first valve core assembly to retract into the first channel (105) to open the first channel (105). Meanwhile, the second valve core assembly extends into the second channel (106) to close the second channel (106). At this time, the reset acting member (51) acts on the fourth end point (d).

11. The valve according to claim 10, wherein, The first valve core assembly includes: A first valve rod (311) is slidably connected to the housing (1). The first end of the first valve rod (311) can slide between the acting area (1041) and the first channel (105). The first cam (221) is in contact transmission connection with the first end of the first valve rod (311). A first reset elastic member (315) is provided between the first valve rod (311) and the housing (1). The first sealing plug (314) is installed at the second end of the first valve stem (311). When the first end of the first valve stem (311) retracts into the first channel (105), the first sealing plug (314) opens the first channel (105), and the first return elastic member (315) is in a contracted state. When the avoidance area (S) rotates to the action area (1041), the first valve stem (311) resets under the restoring force of the first return elastic member (315), the first end of the first valve stem (311) extends into the action area (1041), and the first sealing plug (314) seals the first channel (105). The second valve core assembly includes: A second valve stem (321) is slidably connected to the housing (1). The first end of the second valve stem (321) can slide between the action area (1041) and the second channel (106), and the second cam (222) is in contact and driving connection with the first end of the second valve stem (321). A second return elastic member (325) is arranged between the second valve stem (321) and the housing (1). A second sealing plug (324) is installed at the second end of the second valve stem (321). When the first end of the second valve stem (321) retracts into the second channel (106), the second sealing plug (324) opens the second channel (106), and the second return elastic member (325) is in a contracted state. When the avoidance area (S) rotates to the action area (1041), the second valve stem (321) resets under the restoring force of the second return elastic member (325), the first end of the second valve stem (321) extends into the action area (1041), and the second sealing plug (324) seals the second channel (106).

12. The valve according to claim 11, wherein, The housing (1) includes a bottom case (11), an upper cover (12), and the limiting member (13). The bottom case (11) and the upper cover (12) are detachably connected. The limiting member (13) is detachably connected to the bottom case (11). The bottom case (11) and the upper cover (12) are closed to form the first channel (105) and the second channel (106). The inlet (101), the first outlet (102), and the second outlet (103) are all provided on the bottom case (11). An installation hole passage (104) is provided on the housing (1). The transmission structure (2) is arranged in the installation hole passage (104). A first opening (1071) and a second opening (1072) are provided on the pore wall of the installation hole passage (104). The first opening (1071) is communicated with the first channel (105). The second opening (1072) is communicated with the second channel (106). The acting areas (1041) are provided at positions of the installation hole passage (104) close to the first opening (1071) and close to the second opening (1072). The first end of the first valve rod (311) extends into the acting area (1041) through the first opening (1071). The first end of the second valve rod (321) extends into the acting area (1041) through the second opening (1072). An opening is provided at the first end of the installation hole passage (104). A first shaft hole (110) is provided at the second end of the installation hole passage (104). One end of the transmission shaft (21) extends into the first shaft hole (110) and can rotate relative to the first shaft hole (110). The limiting member (13) is installed at the opening and is used to block the opening. A second shaft hole (131) is provided on the limiting member (13). The other end of the transmission shaft (21) extends out of the housing (1) from the second shaft hole (131) and is connected to the output end of the driving member (4). The transmission shaft (21) can rotate relative to the second shaft hole (131).

13. A gas stove, characterized in that, It includes a first burner (201), a second burner (202), and the valve according to any one of claims 10 - 12. The gas inlet pipeline of the first burner (201) is communicated with the first outlet (102). The gas inlet pipeline of the second burner (202) is communicated with the second outlet (103).

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