Valve and gas stove

Abstract

The utility model discloses a valve and a gas stove. The valve comprises a shell, a first outlet and a second outlet are formed in the front side of the shell, an inlet is formed in the rear side of the shell, a first channel and a second channel are formed in the shell, the rear ends of the first channel and the second channel communicate with the inlet, the front end of the first channel communicates with the first outlet, and the rear end of the second channel communicates with the second outlet. The front end of the second channel is communicated with the second outlet; the driving structure comprises a driving part and a transmission structure in transmission connection with the driving part, the transmission structure comprises a transmission shaft and a first cam and a second cam which are arranged on the transmission shaft, and the driving part can drive the first cam and the second cam to rotate in the radial direction of the transmission shaft through the transmission shaft; the first cam and the second cam are distributed towards different phases in the radial direction of the transmission shaft, and an avoiding area, a first cam exclusive area, an overlapping area and a second cam exclusive area which are sequentially distributed in the radial direction of the transmission shaft are formed between the first cam and the second cam in the axial direction of the transmission shaft.

Description

Technical Field

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

[0002] Currently, many valve mechanisms in the kitchen appliance industry that control the fluid channels with one inlet and two outlets rely on two separate drive sources to achieve independent control of the two channels. In addition, some rely on a single drive source to achieve on / off control.

[0003] For example, in a certain valve mechanism, there is an intake pipe T and two outlet pipes A and B, which are connected to each other, with a valve control mechanism in between. This system has the following four flow states: A open, B open; A open, B closed; A closed, B closed; A closed, B open.

[0004] In existing technologies, using two drive sources allows the air outlets A and B to be independently switched on and off without interference, ensuring smooth switching between different states. However, this requires two drive sources, making the structure more complex. Using a single drive source only allows A to be on and B to be off, making it difficult to achieve four flow states.

[0005] Therefore, a valve is urgently needed to solve the above problems. Utility Model Content

[0006] This utility model aims to solve, at least to some extent, one of the problems existing in the prior art. To this end, this utility model proposes a valve that only requires one drive source to realize four flow states of the two fluid channels of the valve with one inlet and two outlets. The structure is simple and compact, and the stability is good.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A valve, comprising:

[0009] The outer casing has a first outlet and a second outlet on its front side, an inlet on its rear side, and a first channel and a second channel inside the casing. The rear ends of both the first channel and the second channel are connected to the inlet, the front end of the first channel is connected to the first outlet, and the front end of the second channel is connected to the second outlet.

[0010] A drive structure includes a drive component and a transmission structure connected to the drive component. The transmission structure includes a transmission shaft and a first cam and a second cam disposed on the transmission shaft. The drive component can drive the first cam and the second cam to rotate radially along the transmission shaft via 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, a clearance 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 in sequence along the radial direction of the transmission shaft. The clearance area occupies an angle of β1, the first cam exclusive area occupies an angle of β2, the overlapping area occupies an angle of β3, and the second cam exclusive area occupies an angle of β4, where β1+β2+β3+β4=360°.

[0011] The valve core structure includes a first valve core assembly and a second valve core assembly. The first valve core assembly is disposed within the first channel and is movably connected to the first cam. The second valve core assembly is disposed within the second channel and is movably connected to the second cam. The housing has an operating area. When the clearance area rotates to the operating area, both the first and second valve core assemblies extend into the operating area to simultaneously close the first and second channels. When the exclusive area of ​​the first cam rotates to the operating area, the first valve core assembly extends into the first channel to close it, while the second cam pushes the second valve core assembly into the second channel to open it. When the overlapping area rotates to the operating area, the first cam pushes the first valve core assembly into the first channel to open it, while the second cam pushes the second valve core assembly into the second channel to open it. When the exclusive area of ​​the second cam rotates to the operating area, the first cam pushes the first valve core assembly into the first channel to open it, while the second valve core assembly extends into the second channel to close it.

[0012] Optionally, the first valve core assembly includes:

[0013] A first valve stem is slidably connected to the housing, and a first end of the first valve stem is slidable between the working area and the first channel. The first cam is in contact with and driven by the first end of the first valve stem.

[0014] A first reset elastic element is disposed between the first valve stem and the outer casing;

[0015] The first sealing plug is 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 element is in a contracted state. When the clearance area rotates to the action area, the first valve stem is reset under the restoring force of the first reset elastic element, the first end of the first valve stem extends into the action area, and the first sealing plug seals the first channel.

[0016] The second valve core assembly includes:

[0017] The second valve stem is slidably connected to the housing, and the first end of the second valve stem is slidable between the working area and the second channel. The second cam is in contact with the first end of the second valve stem for transmission connection.

[0018] A second reset elastic element is disposed between the second valve stem and the housing;

[0019] The second sealing plug is 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 element is in a contracted state. When the clearance area rotates to the action area, the second valve stem is reset under the restoring force of the second reset elastic element, the first end of the second valve stem extends into the action area, and the second sealing plug seals the second channel.

[0020] Optionally, the first valve core assembly further includes a first guide structure, which is disposed on the housing and extends along the sliding direction of the first valve stem. The first valve stem and the first reset elastic element are slidably connected to the first guide structure. The second valve core assembly further includes a second guide structure, which is disposed on the housing and extends along the sliding direction of the second valve stem. The second valve stem and the second reset elastic element are slidably connected to the second guide structure.

[0021] Optionally, the first guide structure includes at least two spaced first guide rods and at least two first guide grooves disposed at the second end of the first valve stem. At least two first reset elastic elements are provided. The first guide rods extend along the sliding direction of the first valve stem. The first guide rods, the first guide grooves, and the first reset elastic elements are arranged in a one-to-one correspondence. The first reset elastic elements are sleeved on the outside of the first guide rods. The first guide rods extend into the first guide grooves. Both the first reset elastic elements and the first guide grooves can slide along the first guide rods.

[0022] The second guide structure includes at least two spaced second guide rods and at least two second guide grooves disposed at the second end of the second valve stem. At least two second reset elastic members are provided. The second guide rods extend along the sliding direction of the second valve stem. The second guide rods, the second guide grooves, and the second reset elastic members are arranged in a one-to-one correspondence. The second reset elastic members are sleeved on the second guide rods. The second guide rods extend into the second guide grooves. Both the second reset elastic members and the second guide grooves can slide along the second guide rods.

[0023] Optionally, the first guide structure further includes at least two first abutting portions disposed at the second end of the first valve stem, the first abutting portions being disposed one-to-one with the first guide rods, the first guide groove being formed on the first abutting portions, and the first abutting portions abutting with the first reset elastic member; the second guide structure further includes at least two second abutting portions disposed at the second end of the second valve stem, the second abutting portions being disposed one-to-one with the second guide rods, the second guide groove being formed on the second abutting portions, and the second abutting portions abutting with the second reset elastic member.

[0024] Optionally, the outer casing includes a bottom shell and a top cover that are detachably connected to each other. The bottom shell and the top cover are combined to form the first channel and the second channel. The inlet, the first outlet, and the second outlet are all located on the bottom shell. The top cover includes a top cover body and a first partition and a second partition disposed on the top cover body. The first partition extends into the first channel and blocks the first channel, and the second partition extends into the second channel and blocks the second channel. The first partition has a first through hole, and the second partition has a second through hole. The first valve core assembly and the second valve core assembly are both disposed on the top cover. When the first end of the first valve stem retracts into the first channel, the first sealing plug blocks the first through hole. When the first end of the first valve stem extends into the working area, the first sealing plug opens the first through hole. When the first end of the second valve stem retracts into the second channel, the second sealing plug blocks the second through hole. When the first end of the second valve stem extends into the working area, the second sealing plug opens the second through hole.

[0025] Optionally, two of each of the first and second partitions are provided. The two first partitions are spaced apart along the extension direction of the first channel. The first valve core assembly is disposed between the two first partitions. Two first sealing plugs are provided, with each of the two first sealing plugs corresponding to one of the two first through holes opened on the first partition. Two second partitions are spaced apart along the extension direction of the second channel. The second valve core assembly is disposed between the two second partitions. Two second sealing plugs are provided, with each of the two second sealing plugs corresponding to one of the two second through holes opened on the second partition.

[0026] Optionally, the housing is provided with a mounting channel, the transmission structure is disposed in the mounting channel, the mounting channel is provided with a first opening and a second opening on the wall of the mounting channel, the first opening communicates with the first channel, the second opening communicates with the second channel, and the mounting channel is provided with the working area at the position near the first opening and the position near the second opening, the first end of the first valve stem extends into the working area through the first opening, and the first end of the second valve stem extends into the working area through the second opening.

[0027] Optionally, the system further includes a third sealing ring and a fourth sealing ring. The third sealing ring is disposed on the inner wall of the first opening and protrudes from the inner wall of the first opening toward the center of the first opening. The fourth sealing ring is disposed on the inner wall of the second opening and protrudes from the inner wall of the second opening toward the center of the second opening. When the first end of the first valve stem extends into the working area through the first opening, the third sealing ring abuts against the circumference of the first valve stem. When the first end of the second valve stem extends into the working area through the second opening, the fourth sealing ring abuts against the circumference of the second valve stem.

[0028] Optionally, β1 = β2 = β3 = β4 = 90°.

[0029] In another aspect, this utility model provides a gas stove, including a first burner, a second burner, and the aforementioned valve, wherein the gas inlet pipe of the first burner is connected to the first outlet, and the gas inlet pipe of the second burner is connected to the second outlet.

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

[0031] The valve provided by this utility model, by setting the first cam and the second cam on the same transmission shaft, can simultaneously drive the first cam and the second cam to rotate using a single driving component, thereby respectively pushing the first valve core assembly and the second valve core assembly to move, ultimately achieving four states: both the first channel and the second channel are closed, the first channel is closed and the second channel is open, both the first channel and the second channel are open, and the first channel is open and the second channel is closed. It has the advantages of simple and compact structure and good stability. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the valve provided in a specific embodiment of this utility model;

[0033] Figure 2 yes Figure 1 Exploded view;

[0034] Figure 3 This is a three-dimensional structural diagram of the transmission structure of the valve provided in a specific embodiment of this utility model;

[0035] Figure 4 This is a right view of the transmission structure of the valve provided in a specific embodiment of this utility model;

[0036] Figure 5 This is a schematic diagram of the valve core structure and the assembly of the upper cover of the valve provided in a specific embodiment of this utility model;

[0037] Figure 6 yes Figure 5 Exploded view;

[0038] Figure 7 This is a three-dimensional structural diagram of the bottom shell of the valve provided in a specific embodiment of this utility model;

[0039] Figure 8 yes Figure 1 A top view (the avoidance area is rotated to the action area);

[0040] Figure 9 yes Figure 8 Sectional view at point A1-A1;

[0041] Figure 10 yes Figure 8 Sectional view at point A2-A2;

[0042] Figure 11 yes Figure 1 Top view (the first cam's exclusive area rotates to the operating area);

[0043] Figure 12 yes Figure 11 Sectional view at point B1-B1;

[0044] Figure 13 yes Figure 11 Sectional view at point B2-B2;

[0045] Figure 14 yes Figure 1 Top view (overlapping area rotated to the area of ​​effect);

[0046] Figure 15 yes Figure 14 Sectional view at C1-C1;

[0047] Figure 16 yes Figure 14 Sectional view at C2-C2;

[0048] Figure 17 Figure 1 Top view (the second cam's exclusive area rotates to the operating area);

[0049] Figure 18 yes Figure 17 Sectional view at point D1-D1;

[0050] Figure 19 yes Figure 17 Sectional view at point D2-D2;

[0051] Figure 20 This is a schematic diagram of the structure of the gas stove provided in a specific embodiment of this utility model;

[0052] Figure 21 This is a three-dimensional structural diagram of the transmission structure of the valve provided in a specific embodiment two of this utility model;

[0053] Figure 22 This is a right view of the transmission structure of the valve provided in a specific embodiment two of this utility model.

[0054] In the picture:

[0055] 1. Outer shell; 11. Bottom shell; 110. First shaft hole; 12. Top cover; 121. Top cover body; 1221. First guide rod; 1222. Second guide rod; 1231. First partition; 1232. Second partition; 1241. First sealing ring; 1242. Second sealing ring; 1251. First through hole; 1252. Second through hole; 13. Encapsulation cover; 131. Second shaft hole;

[0056] 2. Transmission structure; 21. Transmission shaft; 221. First cam; 222. Second cam; 231. First limiting part; 232. Second limiting part;

[0057] 3. Valve core structure; 311. First valve stem; 312. First abutment portion; 3120. First guide groove; 313. First snap-fit ​​portion; 314. First sealing plug; 315. First reset elastic element; 321. Second valve stem; 322. Second abutment portion; 3220. Second guide groove; 324. Second sealing plug; 325. Second reset elastic element;

[0058] 4. Drive components;

[0059] 101. Inlet; 1011. First Inlet; 1012. Second Inlet; 1011. First Outlet; 1012. Second Outlet; 102. First Outlet; 103. Second Outlet; 104. Mounting Channel; 1041. Functional Area; 105. First Channel; 106. Second Channel; 1071. First Opening; 1072. Second Opening;

[0060] 201, First burner; 2011, First gas pipe; 202, Second burner; 2021, Second gas pipe;

[0061] 301, Third sealing ring; 302, Fourth sealing ring;

[0062] S, avoidance area; M, exclusive area of ​​the first cam; N, exclusive area of ​​the second cam; R, overlapping area. Detailed Implementation

[0063] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0064] Example 1

[0065] Please refer to Figures 1-19This utility model provides a valve, including a housing 1, a drive structure, and a valve core structure 3. A first outlet 102 and a second outlet 103 are provided on the front side of the housing 1, and an inlet 101 is provided on the rear side of the housing 1. A first channel 105 and a second channel 106 are provided inside the housing 1. The rear ends of both the first channel 105 and the second channel 106 are connected to the inlet 101, the front end of the first channel 105 is connected to the first outlet 102, and the front end of the second channel 106 is connected to the second outlet 103. The drive structure includes a drive component 4 and a transmission structure 2 connected to the drive component 4. The transmission structure 2 includes a transmission shaft 21 and a first cam 221 and a second cam 222 disposed on the transmission shaft 21. The drive component 4 can drive the first cam 221 and the second cam 222 to rotate radially along the transmission shaft 21 via 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. Along the axial direction of the transmission shaft 21, the first cam 221 and the second cam 222 form a clearance area S, a first cam exclusive area M, an overlapping area R, and a second cam exclusive area N distributed sequentially along the radial direction of the transmission shaft 21. The clearance area S occupies an angle of β1, the first cam exclusive area M occupies an angle of β2, the overlapping area R occupies an angle of β3, and the second cam exclusive area N occupies an angle of β4. β1+β2+β3+β4=360°. Valve core structure 3 includes a first valve core assembly and a second valve core assembly. The first valve core assembly is disposed within the first channel 105 and is movably connected to the first cam 221. The second valve core assembly is disposed within the second channel 106 and is movably connected to the second cam 222. The housing 1 has an operating area 1041. When the clearance area S rotates to the operating area 1041, both the first and second valve core assemblies extend into the operating area 1041 to simultaneously close the first channel 105 and the second channel 106. When the exclusive area M of the first cam rotates to the operating area 1041, the first valve core assembly extends into the first channel 105 to close the first channel 105. When the second cam 222 pushes the second valve core assembly into the second channel 106 to open the second channel 106; when the overlapping area R rotates to the operating area 1041, the first cam 221 pushes the first valve core assembly 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 into the second channel 106 to open the second channel 106; when the exclusive area N of the second cam rotates to the operating area 1041, the first cam 221 pushes the first valve core assembly into the first channel 105 to open the first channel 105, and at the same time the second valve core assembly extends into the second channel 106 to close the second channel 106.

[0066] The valve provided by this utility model, by setting the first cam 221 and the second cam 222 on the same transmission shaft 21, can simultaneously drive the first cam 221 and the second cam 222 to rotate using a single driving component 4, thereby respectively pushing the first valve core assembly and the second valve core assembly to move, ultimately achieving four states: both the first channel 105 and the second channel 106 are closed, the first channel 105 is closed and the second channel 106 is open, both the first channel 105 and the second channel 106 are open, and the first channel 105 is open and the second channel 106 is closed. It has the advantages of simple and compact structure and good stability.

[0067] It should be noted that in this embodiment, the valve is applied to a gas stove to control the gas flow. In other embodiments, the valve mechanism provided in this embodiment can also be applied to other devices that require a one-inlet-two-outlet valve.

[0068] Optionally, the first valve core assembly includes a first valve stem 311, a first reset elastic element 315, and a first sealing plug 314. The first valve stem 311 is slidably connected to the housing 1, and the first end of the first valve stem 311 can slide between the operating area 1041 and the first channel 105. The first cam 221 is in contact with and driven by the first end of the first valve stem 311. The first reset elastic element 315 is disposed between the first valve stem 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 reset elastic element 315 is in a contracted state. When the clearance area S rotates to the operating area 1041, the first valve stem 311 is reset under the restoring force of the first reset elastic element 315, the first end of the first valve stem 311 extends into the operating area 1041, and the first sealing plug 314 seals the first channel 105. The second valve core assembly includes a second valve stem 321, a second reset elastic element 325, and a second sealing plug 324. The second valve stem 321 is slidably connected to the housing 1, and the first end of the second valve stem 321 is slidable between the operating area 1041 and the second channel 106. The second cam 222 is in contact with and driven by the first end of the second valve stem 321. The second reset elastic element 325 is disposed between the second valve stem 321 and the housing 1. The 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 reset elastic member 325 is in a contracted state. When the clearance area S rotates to the action area 1041, the second valve stem 321 resets under the restoring force of the second reset elastic member 325, and the first end of the second valve stem 321 extends into the action area 1041. The second sealing plug 324 blocks the second channel 106. By setting the first reset elastic member 315 and the second reset elastic member 325, the first valve stem 311 automatically resets when it disengages from the first cam 221, thereby driving the first sealing plug to block the first channel 105. When the second valve stem 321 disengages from the second cam 222, the second valve stem 321 automatically resets, thereby driving the second sealing plug to block the second channel 106. The structure is simple and compact, and no additional drive source is required.

[0069] Optionally, the first valve core assembly further includes a first guide structure, which is disposed on the housing 1 and extends along the sliding direction of the first valve stem 311. The first valve stem 311 and the first reset elastic member 315 are both slidably connected to the first guide structure. The second valve core assembly further includes a second guide structure, which is disposed on the housing 1 and extends along the sliding direction of the second valve stem 321. The second valve stem 321 and the second reset elastic member 325 are both slidably connected to the second guide structure. By providing the first guide structure to guide the first valve stem 311 and the first reset elastic member 315, the first valve stem 311 and the first reset elastic member 315 can always slide along a preset direction, ensuring the movement stability of the first valve stem 311 and the first reset elastic member 315. By providing the second guide structure to guide the second valve stem 321 and the second reset elastic member 325, the second valve stem 321 and the second reset elastic member 325 can always slide along a preset direction, ensuring the movement stability of the second valve stem 321 and the second reset elastic member 325.

[0070] Specifically, both the first reset elastic element 315 and the second reset elastic element 325 are springs, which have a simple structure and are easy to source materials for.

[0071] Optionally, the first guide structure includes at least two spaced-apart first guide rods 1221 and at least two first guide grooves 3120 disposed at the second end of the first valve stem 311. At least two first reset elastic members 315 are provided. The first guide rods 1221 extend along the sliding direction of the first valve stem 311. The first guide rods 1221, first guide grooves 3120, and first reset elastic members 315 are arranged in a one-to-one correspondence. The first reset elastic members 315 are sleeved outside the first guide rods 1221, and the first guide rods 1221 extend into the first guide grooves 3120. Both the first reset elastic members 315 and the first guide grooves 3120 can slide along the first guide rods 1221. By providing at least two first guide rods 1221, at least two first guide grooves 3120, and at least two first reset elastic members 315, the guiding effect on the first valve stem 311 and the first reset elastic members 315 is ensured. The second guide structure includes at least two spaced-apart second guide rods 1222 and at least two second guide grooves 3220 disposed at the second end of the second valve stem 321. At least two second reset elastic members 325 are provided. The second guide rods 1222 extend along the sliding direction of the second valve stem 321. The second guide rods 1222, second guide grooves 3220, and second reset elastic members 325 are arranged in a one-to-one correspondence. The second reset elastic members 325 are sleeved outside the second guide rods 1222, and the second guide rods 1222 extend into the second guide grooves 3220. Both the second reset elastic members 325 and the second guide grooves 3220 can slide along the second guide rods 1222. By providing at least two second guide rods 1222, at least two first guide grooves 3120, and at least two first reset elastic members 315, the guiding effect on the second valve stem 321 and the second reset elastic members 325 is ensured.

[0072] Furthermore, in this embodiment, two of each of the following are provided: the first guide groove 3120, the first guide rod 1221, the first reset elastic element 315, the second guide groove 3220, the second guide rod 1222, and the second reset elastic element 325. The two first guide grooves 3120 are arranged opposite to each other, the two first guide rods 1221 are arranged opposite to each other, the two first reset elastic elements 315 are arranged opposite to each other, the two second guide grooves 3220 are arranged opposite to each other, the two second guide rods 1222 are arranged opposite to each other, and the two second reset elastic elements 325 are arranged opposite to each other, so that the first valve stem 311 and the second valve stem 321 can be subjected to balanced forces, thereby further ensuring and improving the movement stability of the first valve stem 311.

[0073] Optionally, the first guide structure further includes at least two first abutment portions 312 disposed at the second end of the first valve stem 311. Each first abutment portion 312 corresponds to a first guide rod 1221. A first guide groove 3120 is formed on each first abutment portion 312, and the first abutment portion 312 abuts against a first reset elastic member 315. The structure is simple and compact. The second guide structure further includes at least two second abutment portions 322 disposed at the second end of the second valve stem 321. Each second abutment portion 322 corresponds to a second guide rod 1222. A second guide groove 3220 is formed on each second abutment portion 322, and the second abutment portion 322 abuts against a second reset elastic member 325. The structure is simple and compact. Optionally, the outer casing 1 includes a bottom shell 11 and an upper cover 12 detachably connected to each other. 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 on the bottom shell 11. The upper cover 12 includes an upper cover 12 body and a first partition 1231 and a second partition 1232 disposed on the upper cover 12 body. The first partition 1231 extends into the first channel 105 and blocks the first channel 105, and the second partition 1232 extends into the second channel 106 and blocks the second channel 106. The first partition 1231 has a first through hole 1251, and the second partition 1232 has a second through hole 1252. The first valve core assembly and the second valve core assembly are both The first sealing plug 314 is installed on the upper cover 12. When the first end of the first valve stem 311 retracts into the first channel 105, the first sealing plug 314 blocks the first through hole 1251, thereby blocking the first channel 105. When the first end of the first valve stem 311 extends into the action area 1041, the first sealing plug 314 opens the first through hole 1251, thereby opening the first channel 105. When the first end of the second valve stem 321 retracts into the second channel 106, the second sealing plug 324 blocks the second through hole 1252, thereby blocking the second channel 106. When the first end of the second valve stem 321 extends into the action area 1041, the second sealing plug 324 opens the second through hole 1252, thereby opening the second channel 106.

[0074] Optionally, the system also includes a first sealing ring 1241 and a second sealing ring 1242. The first sealing ring 1241 is disposed 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, thereby improving the sealing effect on the first channel 105. The second sealing ring 1242 is disposed 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, thereby improving the sealing effect on the second channel 106.

[0075] Optionally, a first sealing element is provided between the first partition 1231 and the inner wall of the first channel 105 to seal the gap between the first partition 1231 and the first channel 105, preventing gas from flowing out through the gap between the first partition 1231 and the first channel 105. A second sealing element is provided between the second partition 1232 and the inner wall of the second channel 106 to seal the gap between the second partition 1232 and the second channel 106, preventing gas from flowing out through the gap between the second partition 1232 and the second channel 106.

[0076] Optionally, two first partition members 1231 and two second partition members 1232 are provided. The two first partition members 1231 are spaced apart along the extension direction of the first channel 105. The first valve core assembly is disposed between the two first partition members 1231. Two first sealing plugs 314 are provided. The two first sealing plugs 314 are corresponding one-to-one with the two first through holes 1251 opened on the first partition members 1231. By providing two first sealing plugs 314 and two first through holes 1251, the first sealing plugs 314 can achieve a double sealing effect on the first channel 105, avoiding the problem that the first channel 105 cannot be properly sealed when one of the first sealing plugs 314 fails. Two second partition members 1232 are spaced apart along the extension direction of the second channel 106. The second valve core assembly is disposed between the two second partition members 1232. Two second sealing plugs 324 are provided, each corresponding to one of the two second through holes 1252 opened on the second partition member 1232. By providing two second sealing plugs 324 and two second through holes 1252, the second sealing plugs 324 can achieve a double sealing effect on the second channel 106, avoiding the problem that the second channel 106 cannot be properly sealed when one of the second sealing plugs 324 fails. This improves the reliability of the valve.

[0077] Optionally, the second end of the first valve stem 311 is provided with two opposing first locking portions 313, and a first sealing head is mounted on the first locking portions 313. The second end of the second valve stem 321 is provided with two opposing second locking portions, and a second sealing head is mounted on the second locking portions.

[0078] Optionally, the housing 1 has a mounting channel 104, and the transmission structure 2 is disposed in the mounting channel 104. The mounting channel 104 has a first opening 1071 and a second opening 1072 on its wall. The first opening 1071 communicates with the first channel 105, and the second opening 1072 communicates with the second channel 106. The mounting channel 104 has a working area 1041 at the position near the first opening 1071 and the position near the second opening 1072. The first end of the first valve stem 311 extends into the working area 1041 through the first opening 1071, and the first end of the second valve stem 321 extends into the working area 1041 through the second opening 1072. By providing mounting holes 104 on the outer casing 1 to install the transmission structure 2, the transmission structure 2 can be largely separated from the first channel 105 and the second channel 106 (the first channel 105 is connected to the mounting hole 104 only by the first opening 1071, and the second channel 106 is connected to the mounting hole 104 only by the second opening 1072). This can greatly reduce the resistance of the transmission structure 2 to the flowing gas and ensure the flow speed of the gas.

[0079] Optionally, it also includes a third sealing ring 301 and a fourth sealing ring 302. The third sealing ring 301 is disposed on the inner wall of the first opening 1071 and protrudes from the inner wall of the first opening 1071 toward the center of the first opening 1071. The fourth sealing ring 302 is disposed on the inner wall of the second opening 1072 and protrudes from the inner wall of the second opening 1072 toward the center of the second opening 1072. When the first end of the first valve stem 311 extends into the working area 1041 through the first opening 1071, the third sealing ring 301 abuts against the periphery of the first valve stem 311. When the first end of the second valve stem 321 extends into the working area 1041 through the second opening 1072, the fourth sealing ring 302 abuts against the periphery of the second valve stem 321. By setting the third sealing ring 301 and the fourth sealing ring 302, the gas is prevented from flowing out through the gap between the first opening 1071 and the first valve stem 311, and the gap between the second opening 1072 and the second valve stem 321.

[0080] Optionally, in this embodiment, β1 = β2 = β3 = β4 = 90°.

[0081] Optionally, mounting holes 104 are provided in the bottom shell 11.

[0082] Optionally, the system also includes a cover 13. The first end of the mounting channel 104 has an opening, and the second end of the mounting channel 104 has a first shaft hole 110. One end of the drive shaft 21 extends into the first shaft hole 110 and can rotate relative to it. The cover 13 is installed at the opening to seal it. The cover 13 has a second shaft hole 131, and the other end of the drive shaft 21 extends out of the second shaft hole 131 and connects to the output end of the drive component 4. The drive shaft 21 can rotate relative to the second shaft hole 131. By providing the cover 13, the transmission structure 2 can be encapsulated in the mounting channel 104, and the drive shaft 21 can be installed, resulting in a simple and compact structure.

[0083] Furthermore, the transmission structure 2 also includes a first limiting part 231 and a second limiting part 232 disposed on the transmission shaft 21. The first limiting part 231 is disposed between the first shaft hole 110 and the first cam 221 and fits against the wall of the mounting channel 104 where the first shaft hole 110 is located. The second limiting part 232 is disposed between the second shaft hole 131 and the second cam 222 and fits against the inner wall of the encapsulation cover 13, thereby limiting the transmission shaft 21 within the mounting channel 104 and ensuring the movement stability of the transmission shaft 21.

[0084] Furthermore, the bottom shell 11 and the top cover 12, as well as the encapsulation cover 13 and the bottom shell 11, are detachably connected by screws.

[0085] Optionally, inlet 101 includes a first inlet 1011 and a second inlet 1012, with the first inlet 1011 and the second inlet 1012 located on the rear side of the bottom shell 11, and the first outlet 102 and the second outlet 103 located on the front side of the bottom shell 11. The first inlet 1011 communicates with the rear side of the first channel 105, and the second inlet 1012 communicates with the rear side of the second channel 106.

[0086] Please refer to Figure 20 In another aspect, this utility model provides a gas stove, including a first burner 201, a second burner 202 and the aforementioned valve. The gas inlet pipe of the first burner 201 is connected to the first outlet 102, and the gas inlet pipe of the second burner 202 is connected to the second outlet 103.

[0087] Optionally, it also includes a first gas pipe 2011 and a second gas pipe 2021. The gas intake pipe of the first burner 201 is connected to the first outlet 102 through the first gas pipe 2011, and the gas intake pipe of the second burner 202 is connected to the second outlet 103 through the second gas pipe 2021.

[0088] Example 2

[0089] Please refer to Figure 21 and Figure 22 The difference between Example 2 and Example 1 is that β1 = 70°, β2 = 90°, β3 = 140°, and β4 = 60°. That is, the values ​​of β1, β2, β3, and β4 can also be different. As long as 360° is divided into four parts, the avoidance area S, the first cam exclusive area M, the overlapping area R, and the second cam exclusive area N can be formed simultaneously.

[0090] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A valve, characterized in that The utility model relates to a kind of drive structure and the shell of the drive structure, comprising: Shell (1), the front side of the shell (1) is provided with first outlet (102) and second outlet (103), the rear side of the shell (1) is opened with import (101) inside, the inside of the shell (1) is provided with first channel (105) and second channel (106), the rear end of the first channel (105) and the second channel (106) are communicated with the import (101), the front end of the first channel (105) is communicated with the first outlet (102), the front end of the second channel (106) is communicated with the second outlet (103); Drive structure, including drive piece (4) and the transmission structure (2) of transmission connection with the drive piece (4), the transmission structure (2) includes transmission shaft (21) and the first cam (221) and second cam (222) being arranged on the transmission shaft (21), the drive piece (4) can drive the first cam (221), the second cam (222) rotation along the radial direction of the transmission shaft (21) by the transmission shaft (21), the first cam (221) and the second cam (222) are distributed along the radial direction of the transmission shaft (21) to different phase, and along the axial direction of the transmission shaft (21), the first cam (221) and the second cam (222) form the avoidance area (S) of sequentially distributed along the radial direction of the transmission shaft (21), first cam exclusive area (M), overlapping region (R) and second cam exclusive area (N) between, the avoidance area (S) is occupied angle β1, the first cam exclusive area (M) is occupied angle β2, the overlapping region (R) is occupied angle β3, second cam exclusive area (N) is occupied angle β4, β1+β2+β3+β4=360 °; The valve core structure (3) comprises 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 transmission connection with the first cam (221), the second valve core assembly is arranged in the second channel (106) and is in contact transmission connection with the second cam (222), the shell (1) is provided with an action area (1041), 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); when the first cam exclusive area (M) rotates to the action 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); when the overlap area (R) rotates to the action 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); when the second cam exclusive area (N) rotates to the action 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 valve core assembly extends into the second channel (106) to close the second channel (106).

2. The valve of claim 1, wherein The first valve core assembly comprises: A first valve rod (311) is in sliding connection with the shell (1), a first end of the first valve rod (311) can slide between the action 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 arranged between the first valve rod (311) and the shell (1); A first sealing plug (314) is installed at a second end of the first valve rod (311), when the first end of the first valve rod (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 retracted state, when the avoidance area (S) rotates to the action area (1041), the first valve rod (311) is reset under the restoring force of the first reset elastic member (315), the first end of the first valve rod (311) extends into the action area (1041), and the first sealing plug (314) blocks the first channel (105); The second valve core assembly comprises: A second valve stem (321) is in sliding connection with the shell (1), a first end of the second valve stem (321) is capable of sliding between an action area (1041) and the second channel (106), and the second cam (222) is in contactable transmission connection with the first end of the second valve stem (321); A second reset elastic member (325) is arranged between the second valve stem (321) and the shell (1); A second sealing plug (324) is arranged at a second end of the second valve stem (321), when the first end of the second valve stem (321) is retracted 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 retracted 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 of the second valve stem (321) extends into the action area (1041), and the second sealing plug (324) blocks the second channel (106).

3. The valve of claim 2, wherein The first valve core assembly further comprises a first guide structure arranged on the shell (1) and extending along the sliding direction of the first valve stem (311), and the first valve stem (311) and the first reset elastic member (315) are in sliding connection with the first guide structure, and the second valve core assembly further comprises a second guide structure arranged on the shell (1) and extending along the sliding direction of the second valve stem (321), and the second valve stem (321) and the second reset elastic member (325) are in sliding connection with the second guide structure.

4. The valve of claim 3, wherein The first guide structure comprises at least two first guide rods (1221) arranged at intervals and at least two first guide grooves (3120) arranged at the second end of the first valve stem (311), and the first reset elastic member (315) is provided with at least two, the first guide rod (1221) extends along the sliding direction of the first valve stem (311), the first guide rod (1221), the first guide groove (3120) and the first reset elastic member (315) are arranged one by one, the first reset elastic member (315) is sleeved outside the first guide rod (1221), the first guide rod (1221) extends into the first guide groove (3120), and the first reset elastic member (315) and the first guide groove (3120) are capable of sliding along the first guide rod (1221); The second guide structure comprises at least two second guide rods (1222) arranged at intervals and at least two second guide grooves (3220) arranged at the second end of the second valve rod (321), the second reset elastic member (325) is provided with at least two, the second guide rod (1222) is arranged along the sliding direction of the second valve rod (321), the second guide rod (1222), the second guide groove (3220) and the second reset elastic member (325) are arranged one by one, the second reset elastic member (325) is sleeved outside the second guide rod (1222), the second guide rod (1222) extends into the second guide groove (3220), and the second reset elastic member (325) and the second guide groove (3220) can slide along the second guide rod (1222).

5. The valve of claim 4, wherein The first guide structure further comprises at least two first abutting portions (312) arranged at the second end of the first valve rod (311), the first abutting portion (312) is arranged one by one with the first guide rod (1221), the first guide groove (3120) is arranged on the first abutting portion (312), and the first abutting portion (312) abuts against the first reset elastic member (315); the second guide structure further comprises at least two second abutting portions (322) arranged at the second end of the second valve rod (321), the second abutting portion (322) is arranged one by one with the second guide rod (1222), the second guide groove (3220) is arranged on the second abutting portion (322), and the second abutting portion (322) abuts against the second reset elastic member (325).

6. Valve according to any of claims 2-5, characterized in that The shell (1) comprises a bottom shell (11) and an upper cover (12) detachably connected with each other, the bottom shell (11) and the upper cover (12) cover 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 arranged on the bottom shell (11), the upper cover (12) comprises an upper cover body (121) and a first partition piece (1231) and a second partition piece (1232) arranged on the upper cover body (121), the first partition piece (1231) extends into the first channel (105) and partitions the first channel (105), the second partition piece (1232) extends into the second channel (106) and partitions the second channel (106), a first through hole (1251) is arranged on the first partition piece (1231), a second through hole (1252) is arranged on the second partition piece (1232), the first valve core assembly and the second valve core assembly are both arranged on the upper cover (12), when the first end of the first valve rod (311) is retracted into the first channel (105), the first sealing plug (314) blocks the first through hole (1251), when the first end of the first valve rod (311) extends into the action area (1041), the first sealing plug (314) opens the first through hole (1251); when the first end of the second valve rod (321) is retracted into the second channel (106), the second sealing plug (324) blocks the second through hole (1252), when the first end of the second valve rod (321) extends into the action area (1041), the second sealing plug (324) opens the second through hole (1252).

7. The valve of claim 6, wherein The first partition piece (1231) and the second partition piece (1232) are both provided with two, the two first partition pieces (1231) are arranged in a spaced manner along the extension direction of the first channel (105), the first valve core assembly is arranged between the two first partition pieces (1231), the first sealing plug (314) is provided with two, the two first sealing plugs (314) are arranged in one-to-one correspondence with the two first through holes (1251) arranged on the first partition piece (1231), the two second partition pieces (1232) are arranged in a spaced manner along the extension direction of the second channel (106), the second valve core assembly is arranged between the two second partition pieces (1232), the second sealing plug (324) is provided with two, the two second sealing plugs (324) are arranged in one-to-one correspondence with the two second through holes (1252) arranged on the second partition piece (1232).

8. Valve according to any of claims 2-5, characterized in that The housing (1) is provided with a mounting hole (104), the transmission structure (2) is arranged in the mounting hole (104), the hole wall of the mounting hole (104) is provided with a first opening (1071) and a second opening (1072), the first opening (1071) is communicated with the first channel (105), the second opening (1072) is communicated with the second channel (106), the mounting hole (104) is provided with the action area (1041) near the first opening (1071) and near the second opening (1072), the first end of the first valve rod (311) extends into the action area (1041) through the first opening (1071), and the first end of the second valve rod (321) extends into the action area (1041) through the second opening (1072).

9. The valve of claim 8, wherein The third sealing ring (301) is arranged on the inner wall of the first opening (1071) and protrudes from the inner wall of the first opening (1071) towards the center of the first opening (1071), the fourth sealing ring (302) is arranged on the inner wall of the second opening (1072) and protrudes from the inner wall of the second opening (1072) towards the center of the second opening (1072), when the first end of the first valve rod (311) extends into the action area (1041) through the first opening (1071), the third sealing ring (301) abuts against the peripheral side of the first valve rod (311), and when the first end of the second valve rod (321) extends into the action area (1041) through the second opening (1072), the fourth sealing ring (302) abuts against the peripheral side of the second valve rod (321).

10. The valve of any one of claims 2-4, wherein, β1＝β2＝β3＝β4＝90°。 11. A gas hob, characterized in that The first burner (201) is communicated with the first outlet (102), and the second burner (202) is communicated with the second outlet (103).

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