Valve and gas stove

Abstract

The invention 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] The present invention relates to the technical field of kitchen appliances, and in particular to a valve and a gas stove. Background Art

[0002] At present, many valve mechanisms in the kitchen appliance industry that control one-inlet and two-outlet fluid channels rely on two driving sources to achieve independent control of the two channels. In addition, some rely on one driving source to achieve on-off.

[0003] For example, in a valve train, there's an inlet pipe T and two outlet pipes A and B, connected by a valve control mechanism. This system has four flow states: A on, B on, A on, B off, A off, B off, and A off, B on.

[0004] In the prior art, using two drive sources can enable the outlet pipes A and B to be opened and closed independently without interfering with each other, which can better ensure the smooth switching of various states. However, this requires two drive sources and is relatively complex. Using a single drive source can only achieve A open and B closed, or A closed and B open, making it difficult to achieve four flow states.

[0005] Therefore, a valve is urgently needed to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes a valve that only needs to set up a driving source to achieve four flow states of two fluid channels of a one-inlet and two-outlet valve. The structure is simple and compact and the stability is good.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A valve comprising:

[0009] a housing, wherein a first outlet and a second outlet are provided on a front side of the housing, an inlet is provided on a rear side of the housing, a first channel and a second channel are provided inside the housing, rear ends of the first channel and the second channel are both connected to the inlet, a front end of the first channel is connected to the first outlet, and a front end of the second channel is connected to the second outlet;

[0010] A drive structure comprising a drive member and a transmission structure in transmission connection with the drive member, the transmission structure comprising a transmission shaft and a first cam and a second cam disposed on the transmission shaft, the drive member being capable of driving 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 being distributed in different phases along the radial direction of the transmission shaft, and an avoidance area, a first cam exclusive area, an overlapping area, and a second cam exclusive area being sequentially distributed along the radial direction of the transmission shaft are formed between the first cam and the second cam along the axial direction of the transmission shaft, the avoidance area occupying an angle β1, the first cam exclusive area occupying an angle β2, the overlapping area occupying an angle β3, and the second cam exclusive area occupying an angle β4, where β1+β2+β3+β4=360°;

[0011] The valve core structure includes a first valve core assembly and a second valve core assembly, wherein the first valve core assembly is disposed in the first channel and is in contact and transmission connection with the first cam, and the second valve core assembly is disposed in the second channel and is in contact and transmission connection with the second cam. The housing is provided with an active area. When the avoidance area rotates to the active area, the first valve core assembly and the second valve core assembly both extend into the active area to simultaneously close the first channel and the second channel. When the first cam exclusive area rotates to the active area, the first valve core assembly extends into the first channel to close the first channel, while the second cam pushes the second valve core assembly to retract into the second channel to open the second channel. When the overlapping area rotates to the active area, the first cam pushes the first valve core assembly to retract into the first channel to open the first channel, while the second cam pushes the second valve core assembly to retract into the second channel to open the second channel. When the second cam exclusive area rotates to the active area, the first cam pushes the first valve core assembly to retract into the first channel to open the first channel, while the second valve core assembly extends into the second channel to close the second channel.

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

[0013] a first valve stem slidably connected to the housing, a first end portion of the first valve stem being capable of sliding between an active region and the first channel, and the first cam being in contact and transmission connection with the first end portion of the first valve stem;

[0014] a first resetting elastic member, disposed between the first valve stem and the housing;

[0015] a first sealing plug mounted on the second end of the first valve stem; when the first end of the first valve stem is retracted into the first passage, the first sealing plug opens the first passage, and the first return elastic member is in a retracted state; when the avoidance area rotates to the active area, the first valve stem is returned to its original position under the restoring force of the first return elastic member, the first end of the first valve stem extends into the active area, and the first sealing plug blocks the first passage;

[0016] The second valve core assembly includes:

[0017] a second valve stem slidably connected to the housing, a first end portion of the second valve stem being capable of sliding between an active region and the second channel, and the second cam being in contact and transmission connection with the first end portion of the second valve stem;

[0018] a second resetting elastic member, 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 is retracted into the second channel, the second sealing plug opens the second channel and the second reset elastic member is in a retracted state. When the avoidance area rotates to the action area, the second valve stem is reset under the restoring force of the second reset elastic member, the first end of the second valve stem extends into the action area, and the second sealing plug blocks the second channel.

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

[0021] Optionally, the first guide structure includes at least two first guide rods spaced apart and at least two first guide grooves provided at the second end of the first valve stem, at least two first return elastic members 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 return elastic members are provided in a one-to-one correspondence, the first return elastic member is sleeved outside the first guide rod, the first guide rod extends into the first guide groove, and both the first return elastic member and the first guide groove are capable of sliding along the first guide rod;

[0022] The second guide structure includes at least two second guide rods arranged at intervals and at least two second guide grooves arranged at the second end of the second valve stem. At least two second return 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 return elastic members are arranged in a one-to-one correspondence. The second return elastic member is sleeved on the outside of the second guide rod, and the second guide rod extends into the second guide groove. Both the second return elastic member and the second guide groove can slide along the second guide rod.

[0023] Optionally, the first guide structure also includes at least two first abutting portions arranged at the second end portion of the first valve stem, the first abutting portions are arranged in a one-to-one correspondence with the first guide rod, the first guide groove is opened on the first abutting portion, and the first abutting portion abuts against the first reset elastic member; the second guide structure also includes at least two second abutting portions arranged at the second end portion of the second valve stem, the second abutting portions are arranged in a one-to-one correspondence with the second guide rod, the second guide groove is opened on the second abutting portion, and the second abutting portion abuts against the second reset elastic member.

[0024] Optionally, the shell includes a bottom shell and an upper cover that are detachably connected to each other, the bottom shell and the upper cover together form the first channel and the second channel, the inlet, the first outlet and the second outlet are all opened on the bottom shell, the upper cover includes an upper cover body and a first barrier member and a second barrier member arranged on the upper cover body, the first barrier member extends into the first channel and blocks the first channel, the second barrier member extends into the second channel and blocks the second channel, a first through hole is opened on the first barrier member, and a second through hole is opened on the second barrier member, the first valve core assembly and the second valve core assembly are both arranged on the upper cover, when the first end of the first valve stem is retracted 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 active area, the first sealing plug opens the first through hole; when the first end of the second valve stem is retracted 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 active area, the second sealing plug opens the second through hole.

[0025] Optionally, two of the first partition members and the second partition members are provided, the two first partition members are arranged at intervals along the extension direction of the first channel, the first valve core assembly is arranged between the two first partition members, two first sealing plugs are provided, the two first sealing plugs are arranged in a one-to-one correspondence with the two first through holes opened on the first partition members, two second partition members are arranged at intervals along the extension direction of the second channel, the second valve core assembly is provided between the two second partition members, two second sealing plugs are provided, the two second sealing plugs are arranged in a one-to-one correspondence with the two second through holes opened on the second partition member.

[0026] Optionally, a mounting hole is provided on the shell, the transmission structure is arranged in the mounting hole, and a first opening and a second opening are provided on the hole wall of the mounting hole, the first opening is connected to the first channel, and the second opening is connected to the second channel, and the active area is provided at a position of the mounting hole close to the first opening and a position close to the second opening, the first end of the first valve stem extends into the active area through the first opening, and the first end of the second valve stem extends into the active area through the second opening.

[0027] Optionally, a third sealing ring and a fourth sealing ring are further included, the third sealing ring is arranged 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 arranged 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 active area through the first opening, the third sealing ring abuts against the circumferential side of the first valve stem, and when the first end of the second valve stem extends into the active area through the second opening, the fourth sealing ring abuts against the circumferential side of the second valve stem.

[0028] Optionally, β1=β2=β3=β4=90°.

[0029] Another aspect of the present invention provides a gas stove comprising a first burner, a second burner and the above-mentioned 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 the present invention, by arranging the first and second cams on the same transmission shaft, can simultaneously drive the first and second cams to rotate using a single driver, thereby respectively driving the first and second valve core assemblies to move, ultimately achieving four states: the first and second channels are both closed, the first channel is closed and the second channel is open, the first and second channels are both open, and the first channel is open and the second channel is closed. This valve has the advantages of a simple and compact structure and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0033] Figure 2 yes Figure 1 Exploded view of

[0034] Figure 3 1 is a schematic diagram of the three-dimensional structure of the transmission structure of the valve provided in the first embodiment of the present invention;

[0035] Figure 4 It is a right side view of the transmission structure of the valve provided in the first embodiment of the present invention;

[0036] Figure 5 1 is a schematic diagram of the assembly of the valve core structure and the upper cover of the valve provided in the first embodiment of the present invention;

[0037] Figure 6 yes Figure 5 Exploded view of

[0038] Figure 7 1 is a schematic diagram of the three-dimensional structure of the bottom shell of the valve provided in the first embodiment of the present invention;

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

[0040] Figure 9 yes Figure 8 Cross-sectional view at A1-A1;

[0041] Figure 10 yes Figure 8 Cross-sectional view at A2-A2;

[0042] Figure 11 yes Figure 1 (the first cam exclusive area rotates to the active area);

[0043] Figure 12 yes Figure 11 Cross-sectional view at B1-B1;

[0044] Figure 13yes Figure 11 Cross-sectional view at B2-B2;

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

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

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

[0048] Figure 17 yes Figure 1 (the second cam exclusive area rotates to the active area);

[0049] Figure 18 yes Figure 17 Cross-sectional view at D1-D1;

[0050] Figure 19 yes Figure 17 Cross-sectional view at D2-D2 in the middle;

[0051] Figure 20 1 is a schematic structural diagram of a gas stove provided in a first embodiment of the present invention;

[0052] Figure 21 This is a schematic diagram of the three-dimensional structure of the transmission structure of the valve provided in the second specific embodiment of the present invention;

[0053] Figure 22 It is a right side view of the transmission structure of the valve provided in the second specific embodiment of the present invention.

[0054] In the picture:

[0055] 1. Housing; 11. Bottom housing; 110. First axial hole; 12. Upper cover; 121. Upper cover body; 1221. First guide rod; 1222. Second guide rod; 1231. First barrier member; 1232. Second barrier member; 1241. First sealing ring; 1242. Second sealing ring; 1251. First through hole; 1252. Second through hole; 13. Encapsulation cover; 131. Second axial hole;

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

[0057] 3. Valve core structure; 311. First valve stem; 312. First abutting portion; 3120. First guide groove; 313. First clamping portion; 314. First sealing plug; 315. First return elastic member; 321. Second valve stem; 322. Second abutting portion; 3220. Second guide groove; 324. Second sealing plug; 325. Second return elastic member;

[0058] 4. Driving parts;

[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, active 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, area occupied exclusively by the first cam; N, area occupied exclusively by the second cam; R, overlapping area. DETAILED DESCRIPTION

[0063] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0064] Example 1

[0065] Please refer to Figures 1-19The present invention provides a valve, comprising a housing 1, a drive structure, and a valve core structure 3. 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, and 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 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 driving structure includes a driving member 4 and a transmission structure 2 that is transmission-connected to the driving member 4. The transmission structure 2 includes a transmission shaft 21 and 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 between the first cam 221 and the second cam 222, which are distributed 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, 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. An active area 1041 is provided on the housing 1. When the avoidance area S rotates to the active area 1041, the first valve core assembly and the second valve core assembly both extend into the active area 1041 to simultaneously close the first channel 105 and the second channel 106; when the first cam exclusive area M rotates to the active area 1041, the first valve core assembly extends into the first channel 105 to close the first channel 105, and simultaneously When the overlapping area R rotates to the effective 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 effective 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.

[0066] The valve provided by the present invention, by arranging 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 member 4, thereby respectively driving the first valve core assembly and the second valve core assembly to move, ultimately achieving four states: the first channel 105 and the second channel 106 are both closed; the first channel 105 is closed and the second channel 106 is open; the first channel 105 and the second channel 106 are both open; and the first channel 105 is open and the second channel 106 is closed. This valve has the advantages of a 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 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-inlet and two-outlet valve.

[0068] Optionally, the first valve core assembly includes a first valve stem 311, a first return spring 315, and a first sealing plug 314. The first valve stem 311 is slidably connected to the housing 1. The first end of the first valve stem 311 is capable of sliding between the active region 1041 and the first passage 105. The first cam 221 is in contact and transmission connection with the first end of the first valve stem 311. The first return spring 315 is disposed between the first valve stem 311 and the housing 1. The first sealing plug 314 is mounted on the second end of the first valve stem 311. When the first end of the first valve stem 311 retracts into the first passage 105, the first sealing plug 314 opens the first passage 105, and the first return spring 315 is in a retracted state. When the avoidance region S rotates to the active region 1041, the first valve stem 311 returns to its original position under the restoring force of the first return spring 315. The first end of the first valve stem 311 extends into the active region 1041, and the first sealing plug 314 blocks the first passage 105. The second valve core assembly includes a second valve stem 321, a second return spring 325, and a second sealing plug 324. The second valve stem 321 is slidably connected to the housing 1. The first end of the second valve stem 321 is capable of sliding between the active region 1041 and the second channel 106. The second cam 222 is in contact and transmission connection with the first end of the second valve stem 321. The second return spring 325 is disposed between the second valve stem 321 and the housing 1. The second sealing plug 324 is installed on the 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 return elastic member 325 is in a contracted state. When the avoidance area S rotates to the active area 1041, the second valve stem 321 is reset under the restoring force of the second return elastic member 325, and the first end of the second valve stem 321 extends into the active area 1041, and the second sealing plug 324 blocks the second channel 106. By providing the first return elastic member 315 and the second return 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 sealing head 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 sealing head to block the second channel 106. The structure is simple and compact, and no additional driving source is required. The structure is simple.

[0069] Optionally, the first valve core assembly further comprises 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 return elastic member 315 are both slidably connected to the first guide structure. The second valve core assembly further comprises 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 return elastic member 325 are both slidably connected to the second guide structure. The first guide structure is provided to guide the first valve stem 311 and the first return elastic member 315, so that the first valve stem 311 and the first return elastic member 315 can always slide in a preset direction, thereby ensuring the stability of the movement of the first valve stem 311 and the first return elastic member 315. The second guide structure is provided to guide the second valve stem 321 and the second return elastic member 325, so that the second valve stem 321 and the second return elastic member 325 can always slide in a preset direction, thereby ensuring the stability of the movement of the second valve stem 321 and the second return elastic member 325.

[0070] Specifically, the first resetting elastic member 315 and the second resetting elastic member 325 are both springs, which have a simple structure and are easy to obtain materials.

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

[0072] Furthermore, in this embodiment, two of the first guide groove 3120, the first guide rod 1221, the first return elastic member 315, the second guide groove 3220, the second guide rod 1222 and the second return elastic member 325 are each provided. 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 return elastic members 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 return elastic members 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 force, thereby further ensuring the improvement of the movement stability of the first valve stem 311.

[0073] Optionally, the first guide structure further includes at least two first abutting portions 312 disposed at the second end of the first valve stem 311. The first abutting portions 312 are provided in a one-to-one correspondence with the first guide rod 1221. A first guide groove 3120 is provided on the first abutting portion 312. The first abutting portion 312 abuts against the first return elastic member 315, resulting in a simple and compact structure. The second guide structure further includes at least two second abutting portions 322 disposed at the second end of the second valve stem 321. The second abutting portions 322 are provided in a one-to-one correspondence with the second guide rod 1222. A second guide groove 3220 is provided on the second abutting portion 322. The second abutting portion 322 abuts against the second return elastic member 325, resulting in a simple and compact structure. Optionally, the housing 1 includes a bottom shell 11 and an upper cover 12 that are detachably connected to each other, the bottom shell 11 and the upper cover 12 are combined 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 opened on the bottom shell 11, the upper cover 12 includes an upper cover 12 body and a first barrier member 1231 and a second barrier member 1232 provided on the upper cover 12 body, the first barrier member 1231 extends into the first channel 105 and blocks the first channel 105, the second barrier member 1232 extends into the second channel 106 and blocks the second channel 106, the first barrier member 1231 is provided with a first through hole 1251, the second barrier member 1232 is provided with a second through hole 1252, the first valve core assembly and the second valve core assembly are both It is arranged on the upper cover 12. When the first end of the first valve stem 311 is retracted into the first channel 105, the first sealing plug 314 blocks the first through hole 1251, thereby sealing the first channel 105. When the first end of the first valve stem 311 extends into the active 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 is retracted into the second channel 106, the second sealing plug 324 blocks the second through hole 1252, thereby sealing the second channel 106. When the first end of the second valve stem 321 extends into the active area 1041, the second sealing plug 324 opens the second through hole 1252, thereby opening the second channel 106.

[0074] Optionally, a first sealing ring 1241 and a second sealing ring 1242 are further included. The first sealing ring 1241 is disposed on the first through hole 1251 and is configured to cooperate with the first sealing plug 314. When the first sealing plug 314 seals the first through hole 1251, the first sealing ring 1241 seals the gap between the first through hole 1251 and the first sealing plug 314, 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 configured to cooperate with the second sealing plug 324. When the second sealing plug 324 seals the second through hole 1252, the first sealing ring 1242 seals the gap between the second through hole 1252 and the second sealing plug 324, thereby improving the sealing effect on the second channel 106.

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

[0076] Optionally, two first spacer members 1231 and two second spacer members 1232 are provided, the two first spacer members 1231 are spaced apart along the extension direction of the first channel 105, the first valve core assembly is provided between the two first spacer members 1231, and two first sealing plugs 314 are provided, and the two first sealing plugs 314 are provided in a one-to-one correspondence with the two first through holes 1251 opened on the first spacer 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, thereby avoiding the problem that the first channel 105 cannot be sealed normally when one of the first sealing plugs 314 fails. Two second spacers 1232 are spaced apart along the extension direction of the second passage 106, and the second valve core assembly is disposed between the two second spacers 1232. Two second sealing plugs 324 are provided, and the two second sealing plugs 324 are disposed in a one-to-one correspondence with the two second through holes 1252 defined in the second spacers 1232. By providing two second sealing plugs 324 and two second through holes 1252, the second sealing plugs 324 can achieve a dual sealing effect on the second passage 106, thereby preventing the problem of the second passage 106 not being properly sealed if one of the second sealing plugs 324 malfunctions. This improves the reliability of the valve.

[0077] Optionally, the second end of the first valve stem 311 is provided with two oppositely disposed first clamping portions 313, and the first plugging head is mounted on the first clamping portion 313. The second end of the second valve stem 321 is provided with two oppositely disposed second clamping portions, and the second plugging head is mounted on the second clamping portions.

[0078] Optionally, a mounting hole 104 is provided on the housing 1, the transmission structure 2 is arranged in the mounting hole 104, and a first opening 1071 and a second opening 1072 are provided on the hole wall of the mounting hole 104, the first opening 1071 is connected to the first channel 105, and the second opening 1072 is connected to the second channel 106, and an active area 1041 is provided at a position near the first opening 1071 and a position near the second opening 1072 of the mounting hole 104, the first end of the first valve stem 311 extends into the active area 1041 through the first opening 1071, and the first end of the second valve stem 321 extends into the active area 1041 through the second opening 1072. By providing a mounting hole 104 on the housing 1 to dispose 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 is connected between the first channel 105 and the mounting hole 104, and only the second opening 1072 is connected between the second channel 106 and the mounting hole 104). This can greatly reduce the resistance of the transmission structure 2 to the flowing gas, thereby ensuring the flow speed of the gas.

[0079] 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 from the inner wall of the first opening 1071 toward 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 toward the center of the second opening 1072. When the first end of the first valve stem 311 extends into the active 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 active area 1041 through the second opening 1072, the fourth sealing ring 302 abuts against the circumferential side of the second valve stem 321. The third sealing ring 301 and the fourth sealing ring 302 are provided to prevent the gas 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, the mounting hole 104 is provided in the bottom shell 11 .

[0082] Optionally, a packaging cover 13 is further included. The first end of the mounting channel 104 is provided with an opening, and the second end of the mounting channel 104 is provided with a first axial hole 110. One end of the transmission shaft 21 extends into the first axial hole 110 and can rotate relative to the first axial hole 110. The packaging cover 13 is installed at the opening to block the opening. The packaging cover 13 is provided with a second axial hole 131. The other end of the transmission shaft 21 extends from the second axial hole 131 to the outside of the housing 1 and is connected to the output end of the driving member 4. The transmission shaft 21 can rotate relative to the second axial hole 131. By providing the packaging cover 13, on the one hand, the transmission structure 2 can be enclosed in the mounting channel 104, and on the other hand, the transmission shaft 21 can be installed, resulting in a simple and compact structure.

[0083] Furthermore, the transmission structure 2 also includes a first limiting portion 231 and a second limiting portion 232 arranged on the transmission shaft 21. The first limiting portion 231 is arranged between the first shaft hole 110 and the first cam 221 and is in contact with the hole wall of the mounting channel 104 where the first shaft hole 110 is located. The second limiting portion 232 is arranged between the second shaft hole 131 and the second cam 222 and is in contact with the inner wall of the packaging cover 13, thereby realizing the limitation of the transmission shaft 21 in the mounting channel 104 and ensuring the movement stability of the transmission shaft 21.

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

[0085] Optionally, the inlet 101 includes a first inlet 1011 and a second inlet 1012, the first inlet 1011 and the second inlet 1012 are arranged on the rear side of the bottom housing 11, and the first outlet 102 and the second outlet 103 are arranged on the front side of the bottom housing 11. The first inlet 1011 is connected to the rear side of the first channel 105, and the second inlet 1012 is connected to the rear side of the second channel 106.

[0086] Please refer to Figure 20 On the other hand, the present invention provides a gas stove, including a first burner 201, a second burner 202 and the above-mentioned 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, a first gas pipe 2011 and a second gas pipe 2021 are further included. The gas inlet pipe of the first burner 201 is connected to the first outlet 102 through the first gas pipe 2011 , and the gas inlet 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 the second embodiment and the first embodiment 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 and the avoidance area S, the first cam exclusive area M, the overlapping area R, and the second cam exclusive area N are formed at the same time.

[0090] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A valve, characterized in that: include: A housing (1), wherein a first outlet (102) and a second outlet (103) are provided on the front side of the housing (1), 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 the first channel (105) and the second channel (106) are both in communication with the inlet (101), the front end of the first channel (105) is in communication with the first outlet (102), and the front end of the second channel (106) is in communication with the second outlet (103); A driving structure comprises a driving member (4) and a transmission structure (2) connected to the driving member (4); the transmission structure (2) comprises a transmission shaft (21) and 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) rotate in different directions along the radial direction of the transmission shaft (21). The first cam (221) and the second cam (222) are arranged in a radial direction of the transmission shaft (21), and 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), which are sequentially distributed 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, where β1+β2+β3+β4=360°. The valve core structure (3) comprises a first 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 active area (1041) is provided on the housing (1). When the avoidance area (S) rotates to the active area (1041), the first valve core assembly and the second valve core assembly both extend into the active area (1041) to simultaneously close the first channel (105) and the second channel (106); when the first cam exclusive area (M) rotates to the active area (1041), the first valve core assembly extends into the first channel (105) to close the first channel (105), and 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 overlapping area (R) rotates to the effective 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 effective 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 according to claim 1, characterized in that The first valve core assembly includes: a first valve stem (311) slidably connected to the housing (1); a first end portion of the first valve stem (311) being capable of sliding between an active region (1041) and the first channel (105); and a first cam (221) being in contact transmission connection with the first end portion of the first valve stem (311); a first resetting elastic member (315) disposed between the first valve stem (311) and the housing (1); a first sealing plug (314) mounted on the second end of the first valve stem (311); when the first end of the first valve stem (311) is retracted into the first channel (105), the first sealing plug (314) opens the first channel (105), and the first resetting elastic member (315) is in a retracted 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 resetting elastic member (315), the first end 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) slidably connected to the housing (1); a first end portion of the second valve stem (321) being capable of sliding between the active region (1041) and the second channel (106); and a second cam (222) being in contact transmission connection with the first end portion of the second valve stem (321); a second resetting elastic member (325) disposed between the second valve stem (321) and the housing (1); The second sealing plug (324) is installed on the 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), and 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 according to claim 2, characterized in that The first valve core assembly further comprises a first guide structure, which is arranged on the housing (1) and extends along the sliding direction of the first valve stem (311), and 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 comprises a second guide structure, which is arranged on the housing (1) and extends along the sliding direction of the second valve stem (321), and the second valve stem (321) and the second reset elastic member (325) are both slidably connected to the second guide structure.

4. The valve according to claim 3, characterized in that 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 rod (311); at least two first reset elastic members (315) are provided; the first guide rods (1221) are extended along the sliding direction of the first valve rod (311); the first guide rods (1221), the first guide grooves (3120) and the first reset elastic member (315) are arranged in a one-to-one correspondence; 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); the first reset elastic member (315) and the first guide groove (3120) are both capable of sliding along the first guide rod (1221); The second guide structure includes 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 stem (321), at least two second reset elastic members (325) are provided, the second guide rods (1222) are extended along the sliding direction of the second valve stem (321), the second guide rod (1222), the second guide groove (3220) and the second reset elastic member (325) are arranged in a one-to-one correspondence, 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 both slide along the second guide rod (1222).

5. The valve according to claim 4, characterized in that The first guide structure also includes at least two first abutting portions (312) arranged at the second end of the first valve stem (311), the first abutting portions (312) are arranged in a one-to-one correspondence with the first guide rod (1221), the first guide groove (3120) is opened on the first abutting portion (312), and the first abutting portion (312) abuts against the first reset elastic member (315); the second guide structure also includes at least two second abutting portions (322) arranged at the second end of the second valve stem (321), the second abutting portions (322) are arranged in a one-to-one correspondence with the second guide rod (1222), the second guide groove (3220) is opened on the second abutting portion (322), and the second abutting portion (322) abuts against the second reset elastic member (325).

6. The valve according to any one of claims 2 to 5, characterized in that: The housing (1) comprises a bottom shell (11) and an upper cover (12) which are detachably connected to each other. The bottom shell (11) and the upper cover (12) are combined 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 shell (11). The upper cover (12) comprises an upper cover body (121) and a first barrier member (1231) and a second barrier member (1232) provided on the upper cover body (121). The first barrier member (1231) extends into the first channel (105) and blocks the first channel (105). The second barrier member (1232) extends into the second channel (106) and blocks the second channel (106). The first barrier member (1231) is provided with a first through hole (1251). The second barrier member (1232) is provided with a first through hole (1252). A second through hole (1252) is provided on the barrier member (1232), and 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 stem (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 stem (311) is extended into the active area (1041), the first sealing plug (314) opens the first through hole (1251); when the first end of the second valve stem (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 stem (321) is extended into the active area (1041), the second sealing plug (324) opens the second through hole (1252).

7. The valve according to claim 6, characterized in that: Two of the first spacer (1231) and the second spacer (1232) are provided, and the two first spacer (1231) are spaced apart along the extension direction of the first channel (105). The first valve core assembly is provided between the two first spacer (1231). Two of the first sealing plugs (314) are provided, and the two first sealing plugs (314) are arranged in a one-to-one correspondence with the two first through holes (1251) opened on the first spacer (1231). The two second spacer (1232) are spaced apart along the extension direction of the second channel (106). The second valve core assembly is provided between the two second spacer (1232). Two of the second sealing plugs (324) are provided, and the two second sealing plugs (324) are arranged in a one-to-one correspondence with the two second through holes (1252) opened on the second spacer (1232).

8. The valve according to any one of claims 2 to 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), a first opening (1071) and a second opening (1072) are provided on the hole wall of the mounting hole (104), the first opening (1071) is communicated with the first channel (105), and the second opening (1072) is communicated with the second channel (106), the mounting hole (104) is provided with the active area (1041) at a position close to the first opening (1071) and a position close to the second opening (1072), the first end of the first valve stem (311) extends into the active area (1041) via the first opening (1071), and the first end of the second valve stem (321) extends into the active area (1041) via the second opening (1072).

9. The valve according to claim 8, characterized in that The valve stem (311) further includes a third sealing ring (301) and a fourth sealing ring (302), 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) toward the center of the first opening (1071), and 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) toward the center of the second opening (1072). When the first end of the first valve stem (311) extends into the active area (1041) through the first opening (1071), the third sealing ring (301) abuts against the peripheral side of the first valve stem (311); when the first end of the second valve stem (321) extends into the active area (1041) through the second opening (1072), the fourth sealing ring (302) abuts against the peripheral side of the second valve stem (321).

10. The valve according to any one of claims 2 to 4, characterized in that: β1＝β2＝β3＝β4＝90°。 11. A gas stove, characterized in that: The invention comprises a first burner (201), a second burner (202) and a valve according to any one of claims 1 to 10, wherein 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).

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