Plug valve and gas stove with same

Abstract

The utility model provides a plug valve and a gas stove with the plug valve, and belongs to the technical field of kitchen appliances, the plug valve comprises a valve body, a valve cover, a valve core, a valve rod and a position switch component, the valve body is provided with a valve cavity, the valve cover is provided with a mounting space communicated with the valve cavity, and the position switch component comprises a rotating component and a sensing component; the valve deck is connected to the valve body, one end of the valve element is inserted into the valve cavity, and the other end of the valve element extends to the installation space. The valve rod penetrates through the valve cover, is connected to the valve element and is used for driving the valve element to rotate, so that the valve element has an ignition position and a stir-frying position; the rotating assembly is connected to the periphery of the valve element and can rotate along with the valve element under driving of the valve rod, and when the valve element is located at the ignition position or the stir-frying position, the sensing assembly abuts against the rotating assembly. According to the utility model, ignition and stir-frying angle judgment can be realized at the same time, the angle judgment precision is high, the product is easy to assemble and detect, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a plug valve and a gas stove with the same. Background Art

[0002] Nowadays, society is developing rapidly, people's living standards are constantly improving, and more and richer ingredients are entering people's dining tables. The diversification of ingredients and cooking methods has led to users' increasing demand for firepower, especially stir-frying. Currently, there are two ways to start stir-frying, one is to control stir-frying with a touch panel, and the other is to start stir-frying by pressing the plug valve. The plug valve in the prior art generally uses magnetic coding and magnets to achieve stir-frying. Because the direction of the magnetic pole has a jump in the extreme position of N\S, the magnet assembly process requires specific regulations on the direction and angle of the magnet assembly. After assembly, it is also necessary to design tooling to fully inspect the voltage value corresponding to the magnetic pole, resulting in cumbersome procedures. Utility Model Content

[0003] The first technical problem to be solved by the utility model is to provide a plug valve which can realize ignition and stir-fry angle judgment at the same time, and has high angle judgment accuracy, is easy to assemble, easy to detect, and has high reliability, in view of the current status of the existing technology.

[0004] The second technical problem to be solved by the utility model is to provide a gas stove with the above-mentioned plug valve.

[0005] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a plug valve, the plug valve comprising:

[0006] A valve body having a valve cavity;

[0007] A valve cover connected to the valve body and having an installation space communicating with the valve cavity;

[0008] A valve core, one end of which is inserted into the valve cavity and the other end of which extends to the installation space;

[0009] A valve stem passes through the valve cover, is connected to the valve core and drives the valve core to rotate, so that the valve core has an ignition position and a stir-frying position;

[0010] The position switch component includes a rotating component and a sensing component. The rotating component is connected to the outer periphery of the valve core and can rotate synchronously with the valve core. The working end of the sensing component is located in the installation space. When the valve core is located in the ignition position or the stir-frying position, the working end of the sensing component abuts against the rotating component.

[0011] According to one embodiment of the present utility model, the rotating assembly includes:

[0012] A disc, sleeved on a side of the valve core close to the valve body;

[0013] a paddle, one end of which is fixed to the disc and the other end of which extends in a direction away from the valve body, so that when the valve core is located at the ignition position, the paddle abuts against the sensing component;

[0014] The raised portion is connected to the outer periphery of the disc, so that when the valve core rotates to the stir-frying position, the raised portion abuts against the sensing component.

[0015] According to one embodiment of the present utility model, the protrusion includes:

[0016] a first arc-shaped wall connected to the outer circumference of the disk;

[0017] An inclined wall, one end of which is connected to an end of the first arc-shaped wall close to the paddle, and the other end of which is inclined in a direction away from the disk and the paddle;

[0018] The second arc-shaped wall is in an outwardly convex arc shape, one end of which is connected to the other end of the inclined wall;

[0019] The third arc-shaped wall is in an inwardly concave arc shape, one end of which is connected to the other end of the second arc-shaped wall, and the other end of which is connected to the end of the first arc-shaped wall away from the paddle.

[0020] According to an embodiment of the present utility model, the angle of rotation of the protrusion from the initial position to the connection with the sensing component is a, wherein 70°≤a≤110°.

[0021] According to an embodiment of the utility model, a through hole corresponding to the valve core is opened in the middle of the disc, the valve core is inserted into the through hole, and a limiting step for limiting the disc is opened on the outer peripheral wall of the valve core.

[0022] According to one embodiment of the utility model, the valve core is provided with a U-shaped groove corresponding to the valve stem, the hole wall of the through hole is recessed inward to form two grooves, the two grooves are symmetrically distributed at both ends of the U-shaped groove, and the two grooves are connected to the U-shaped groove.

[0023] According to one embodiment of the present utility model, the sensing component includes:

[0024] A first micro switch, connected to a side of the valve cover close to the valve body, for determining whether the valve core is located at the ignition position;

[0025] The second micro switch is located above the first micro switch and connected to a side of the valve body close to the valve cover. The second micro switch can abut against the protrusion to determine whether the valve core is located at the stir-frying position.

[0026] According to one embodiment of the present utility model, the position switch component further includes:

[0027] A limiting pressing sheet connected to the outer periphery of the valve stem, the valve cover having a first opening corresponding to the limiting pressing sheet, so that the limiting pressing sheet passes through the first opening;

[0028] The third micro switch is connected to the valve cover, and the third micro switch can contact the limit pressing piece and generate a stir-frying signal.

[0029] According to one embodiment of the utility model, the valve body also includes a first air outlet channel and a stir-frying channel, the stir-frying channel is connected to the valve cavity and the first air outlet channel, the stir-frying channel is connected to a self-priming valve, the self-priming valve is connected to the third microswitch, and the on and off of the stir-frying channel is controlled according to the signal of the third microswitch.

[0030] The technical solution adopted by the utility model to solve the second technical problem is: a gas stove, the gas stove comprises a stopcock as described in any one of the above items.

[0031] Compared with the prior art, the utility model has the following advantages or beneficial effects:

[0032] The utility model cooperates with the valve stem, the valve core and the position switch component so that the ignition and stir-frying angles can be judged by rotating the valve stem. Since the rotating assembly is mounted on the valve core, the large rotation angle error caused by the virtual position of the valve stem can be reduced, the accuracy of angle judgment is improved, the assembly process and the detection process are simplified, and the product is easy to assemble, easy to detect and has high reliability.

[0033] The rotating assembly integrates the ignition function and the angle judgment function into one, reducing unnecessary parts. In addition, the structural design of the raised part ensures that the pre-pressing and pressing processes are smooth and feel good without jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0035] Figure 1 is a schematic diagram of a plug valve shown according to an exemplary embodiment.

[0036] Figure 2 is a cross-sectional view of a plug valve according to an exemplary embodiment

[0037] Figure 3 is a perspective view of a plug valve shown according to an exemplary embodiment.

[0038] Figure 4 is an exploded view of a plug valve shown according to an exemplary embodiment.

[0039] Figure 5 Schematic diagram of the connection of a valve body, a valve core, and a position switch component according to an exemplary embodiment.

[0040] Figure 6 is a schematic diagram showing the connection between a valve cover, a valve stem, a limit pressing piece and a third micro switch according to an exemplary embodiment.

[0041] Figure 7 FIG. 4 is a schematic diagram showing the connection between the valve cover and the third micro switch according to an exemplary embodiment.

[0042] Figure 8 It is a schematic diagram showing the connection between a valve core and a rotating assembly according to an exemplary embodiment.

[0043] Fig. 9 is a schematic diagram of a rotating assembly according to an exemplary embodiment.

[0044] Fig.10 FIG. 4 is a schematic diagram showing the relative positions of a second micro switch and a protruding portion according to an exemplary embodiment.

[0045] The reference numerals are described as follows:

[0046] 1. Valve body; 11. First air outlet channel; 12. Stir-frying channel;

[0047] 2. Valve cover; 21. First opening; 22. Second opening;

[0048] 3. Valve core; 31. U-shaped groove;

[0049] 4. Valve stem;

[0050] 5. Position switch component; 51. Rotating component; 511. Disc; 5111. Through hole; 5112. Groove; 512. Paddle; 513. Protrusion; 5131. First arc-shaped wall; 5132. Inclined wall; 5133. Second arc-shaped wall; 5134. Third arc-shaped wall; 52. Sensing component; 521. First micro switch; 522. Second micro switch; 53. Limiting pressing piece; 54. Third micro switch;

[0051] 6. Self-priming valve. DETAILED DESCRIPTION

[0052] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0053] The terms "a", "an", "the", "" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0054] A plug valve according to an embodiment of the utility model, such as Figure 1-5 The plug valve shown includes a valve body 1, a valve cover 2, a valve core 3, a valve stem 4 and a position switch component 5. The valve body 1 has a valve cavity, and the valve cover 2 has an installation space connected to the valve cavity. The position switch component 5 includes a rotating component 51 and a sensing component 52; the valve cover 2 is connected to the valve body 1, one end of the valve core 3 is inserted into the valve cavity, and the other end of the valve core 3 extends to the installation space; the valve stem 4 passes through the valve cover 2 and is connected to the valve core 3, which is used to drive the valve core 3 to rotate, so that the valve core 3 has an ignition position and a stir-frying position; the rotating component 51 is connected to the outer periphery of the valve core 3 and can rotate with the valve core 3 under the drive of the valve stem 4, and when the valve core 3 is in the ignition position or the stir-frying position, the sensing component 52 and the rotating component 51 are in contact. The present application can drive the valve core 3 and the rotating component 51 thereon to rotate through the valve stem 4, and the rotating component 51 is respectively in contact with the sensing component 52 at the ignition position or the stir-frying position of the valve core 3 during the rotation process. That is, the rotation of the valve stem 4 can realize the ignition and stir-fry angle judgment, and the rotating component 51 is mounted with the valve core 3, which can reduce the large rotation angle error caused by the vacant position of the valve stem 4 and improve the accuracy of angle judgment. At the same time, the assembly process of the rotating component 51 and the valve core 3 is simple and accurate. The present application uses mechanical position judgment to replace the magnetic field judgment in the prior art, simplifies the assembly process and the detection process, and the product is easy to assemble, easy to detect and has high reliability.

[0055] In a preferred embodiment of the present invention, Figure 2 , 4 8-10, the rotating assembly 51 comprises a disc 511, a paddle 512 and a protrusion 513. The disc 511 is sleeved on the side of the valve core 3 close to the valve body 1; one end of the paddle 512 is fixedly connected to the disc 511, and the other end of the paddle 512 extends away from the valve body 1, so that when the valve core 3 is in the ignition position, the paddle 512 abuts against the induction assembly 52; the protrusion 513 is connected to the outer periphery of the disc 511, so that when the valve core 3 rotates to the stir-fry position, the protrusion 513 abuts against the induction assembly 52. Figure 4 , 9 The figure shows the initial position of the rotating assembly 51, which is also the ignition position of the valve core 3. At this time, the paddle 521 is in contact with the first microswitch 521. Ignition can be achieved by rotating the valve core 3. When the protrusion 513 rotates counterclockwise to a position in contact with the working end of the second microswitch 522, the valve core 3 is in the stir-fry position. The present application integrates the paddle 512 for ignition sensing and the protrusion 513 for judging the stir-fry angle onto the disc 511, reducing unnecessary parts, making the structure simpler and taking up less space. During assembly, it is only necessary to connect the disc 511 and the valve core 3 to simplify the assembly process. The valve stem 4 of the present application rotates to realize ignition and stir-fry angle judgment. The rotation is the ignition function, realizing the 0-second ignition technical feature, which can optimize the user experience.

[0056] In a preferred embodiment of the present invention, Figure 2 , 4 , 5, 8-10, the raised portion 513 comprises a first arcuate wall 5131, an inclined wall 5132, a second arcuate wall 5133 and a third arcuate wall 5134, the second arcuate wall 5133 is an arcuate shape convex outwardly, the third arcuate wall 5134 is an arcuate shape concave inwardly, the first arcuate wall 5131 is connected to the outer periphery of the disc 511; one end of the inclined wall 5132 is connected to one end of the first arcuate wall 5131 close to the paddle 512, and the other end is connected to the first arcuate wall 5131 away from the paddle 512. The disc 511 and the paddle 512 are inclined in direction; one end of the second arcuate wall 5133 is connected to the other end of the inclined wall 5132, one end of the third arcuate wall 5134 is connected to the other end of the second arcuate wall 5133, and the other end of the third arcuate wall 5134 is connected to the end of the first arcuate wall 5131 away from the paddle 512, and the first arcuate wall 5131, the inclined wall 5132, the second arcuate wall 5133 and the third arcuate wall 5134 are jointly formed as follows: Figure 4 , 8 , 9, when the protrusion 513 rotates with the disc 511 and the valve core 3, the inclined wall 5132 first contacts the contact on the second micro switch 522, and then the second arc wall 5133 and the third arc wall 5134. Since the front end of the protrusion 513 of the present application, i.e., the inclined wall 5132, has a certain inclination, the contact on the second micro switch 522 is guided to the second arc wall 5133 and the third arc wall 5134. In addition, the second arc wall 5133 and the third arc wall 5134 are designed as arcs, which ensures that the pre-pressing and pressing processes are smooth and feel good without jamming.

[0057] In a preferred embodiment of the present invention, Figure 2 , 4 , 5, 8-10, the angle of rotation of the protrusion 513 from the initial position to the connection with the sensing component 52 is a, wherein 70°≤a≤110°. Fig. 9 , Fig.10 a shows the initial position of the protrusion 513, which is also the ignition position of the valve core 3; as the protrusion 513 rotates counterclockwise to the position just contacting the working end of the second micro switch 522 Fig.10 As shown in b, at this time, the angle of rotation of the valve core 3 and the protrusion 513 is 70°; as the valve core 3 continues to rotate counterclockwise, the working end of the second micro switch 522 moves along the inclined wall 5132 to the top of the second arc wall 5133 Fig.10 As shown in FIG. 3 , at this time, the valve core 3 and the protrusion 513 rotate by 90°; as the valve core 3 continues to rotate counterclockwise, the working end of the second micro switch 522 moves along the inclined wall 5132 to the third arc-shaped wall 5134. Fig.10 As shown in FIG. d, at this time, the rotation angle of the valve core 3 and the protrusion 513 is 110°.

[0058] In a preferred embodiment of the present invention, Figure 2 , 4 The disc 511 shown in , 8, and 9 is provided with a through hole 5111 corresponding to the valve core 3 in the middle, the valve core 3 is inserted into the through hole 5111, and the outer wall of the valve core 3 is provided with a limiting step for limiting the disc 511. In the present application, the disc 511 is sleeved on the outer periphery of the valve core 3, a spring is connected to the outer side of the disc 511, and the inner side of the disc 511, i.e., the side close to the valve body 1, abuts against the limiting step to prevent the disc 511 from getting stuck after falling and causing functional failure. In a preferred embodiment of the present utility model, Figure 2 , 4 The valve core 3 shown in FIGS. 8 and 9 is provided with a U-shaped groove 31 corresponding to the valve stem 4, and the hole wall of the through hole 5111 is recessed inward to form two grooves 5112, and the two grooves 5112 are symmetrically distributed at both ends of the U-shaped groove 31, and the two grooves 5112 are connected to the U-shaped groove 31. The two grooves 5112 can not only reduce weight, but also be used to align the disc 511 and the valve core 3, thereby improving assembly efficiency.

[0059] In a preferred embodiment of the present invention, Figure 1-6The sensing component 52 includes a first micro switch 521 and a second micro switch 522. The first micro switch 521 is connected to the side of the valve cover 2 close to the valve body 1, and is used to determine whether the valve core 3 is in the ignition position; the second micro switch 522 is located above the first micro switch 521 and is connected to the side of the valve body 1 close to the valve cover 2. The second micro switch 522 can abut against the protrusion 513 to determine whether the valve core 3 is in the stir-fry position. In the prior art, since the valve core 3 is equipped with a magnet and the valve body 1 is equipped with a magnetic coding control board, the height of the overall valve body 1 is relatively high, and the layout space in the stove is reduced, resulting in limited versatility of the valve body 1. In addition, the magnetic coding control board installed on the valve body 1 needs to be strictly waterproofed. Otherwise, it is easy to cause water short circuit or insects, oil erosion and other adverse problems. The first micro switch 521 of the present application is located Figure 5 At the lower left of the middle valve body 1, the second micro switch 522 is located at the upper left of the valve body 1, wherein the valve cover 2 is provided with a second opening 22, so that the working ends of the first micro switch 521 and the second micro switch 522 can be inserted into the installation space, so that the first micro switch 521 and the paddle 512 are used for ignition, and the second micro switch 522 and the protrusion 513 are used for accurate judgment of the stir-fry angle. Moreover, the first micro switch 521 and the second micro switch 522 can both be placed horizontally, saving layout space, reducing the overall height of the plug valve, and improving the versatility of the plug valve. It should be noted that the opening direction of the first micro switch 521 and the second micro switch 522 is consistent with the direction of the paddle, so as to prevent the shaking effect caused by the friction pressing plate caused by the inconsistency.

[0060] In a preferred embodiment of the present invention, Figure 1-4 , 6 and 7, the position switch component 5 also includes a limit pressing piece 53 and a third micro switch 54. The limit pressing piece 53 is connected to the outer periphery of the valve stem 4, and the third micro switch 54 is connected to the valve cover 2. The valve cover 2 has a first opening 21 corresponding to the limit pressing piece 53, so that the limit pressing piece 53 passes through the first opening 21 and contacts with the working end of the third micro switch 54 to generate a stir-fry signal. The limit pressing piece 53 and the third micro switch 54 are matched to control stir-frying; stir-frying is achieved by pressing the knob down, which can optimize the user experience. In addition, a spring is installed on the outside of the disc 511, which can push the limit pressing piece 53 back to the initial position after the stir-frying is started.

[0061] In a preferred embodiment of the present invention, Figure 1-4The valve body 1 shown also includes a first air outlet channel 11 and a stir-fry channel 12, and the stir-fry channel 12 is connected to the valve cavity and the first air outlet channel 11. The stir-fry channel 12 is connected to a self-priming valve 6, and the self-priming valve 6 is connected to the third micro switch 54, and the on and off of the stir-fry channel 12 is controlled according to the signal of the third micro switch 54. After the stir-fry is started, the self-priming valve 6 opens the stir-fry channel 12 to achieve stir-frying. Compared with the prior art, the stir-fry controller is omitted. It is only necessary to start the stir-fry signal according to the mechanical position to open the stir-fry channel 12 to achieve stir-frying. The structure is simple and the accuracy is higher. This application changes the steady-state valve to a single-coil solenoid valve of the self-priming valve 6, and its advantages are: a. Automatic reset when power is off to avoid the non-stir-frying state, and the valve body 1 is opened for stir-frying; b. The valve opening ability is stronger, ensuring that in extreme cases, when the valve sticks, it can also be opened for stir-frying; C. The low-voltage ignition ability is stronger, and stir-frying can also be performed when the low-voltage battery is insufficient; d. The forward and reverse thrust is changed to one-way, and the control stir-frying module is cancelled, and the whole machine reduces one component to achieve optimization.

[0062] A gas stove in an embodiment of the utility model includes a stopcock as described above. By adding a second micro switch 522 to replace the original magnetic coding control angle solution, the ignition function can be started and the stir-fry angle can be determined. The process assembly has high stability, is easy to assemble and detect, and has higher reliability. The height of the stopcock will not be increased, making the layout space in the stove more reasonable. The present application realizes the ignition function by turning the knob, achieving the 0-second ignition technical characteristics, and stir-frying can be achieved by pressing the knob, optimizing the user experience.

[0063] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0064] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0065] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug valve, characterized in that: The plug valve comprises: A valve body (1) having a valve chamber; A valve cover (2) connected to the valve body (1) and having an installation space communicating with the valve cavity; A valve core (3), one end of which is inserted into the valve cavity and the other end of which extends into the installation space; The valve stem (4) passes through the valve cover (2), is connected to the valve core (3) and drives the valve core (3) to rotate, so that the valve core (3) has an ignition position and a stir-frying position; The position switch component (5) comprises a rotating component (51) and a sensing component (52); the rotating component (51) is connected to the outer periphery of the valve core (3) and can rotate synchronously with the valve core (3); the working end of the sensing component (52) is located in the installation space, and when the valve core (3) is located in the ignition position or the stir-frying position, the working end of the sensing component (52) abuts against the rotating component (51).

2. The plug valve according to claim 1, characterized in that: The rotating assembly (51) comprises: A disc (511) is sleeved on a side of the valve core (3) close to the valve body (1); a paddle (512), one end of which is fixedly connected to the disc (511), and the other end of which extends in a direction away from the valve body (1), so that when the valve core (3) is located at the ignition position, the paddle (512) abuts against the sensing component (52); The raised portion (513) is connected to the outer periphery of the disc (511), so that when the valve core (3) rotates to the stir-frying position, the raised portion (513) abuts against the sensing component (52).

3. The plug valve according to claim 2, characterized in that: The protrusion (513) comprises: A first arc-shaped wall (5131) connected to the outer periphery of the disk (511); an inclined wall (5132), one end of which is connected to an end of the first arc-shaped wall (5131) close to the paddle (512), and the other end of which is inclined in a direction away from the disc (511) and the paddle (512); The second arc-shaped wall (5133) is in an outwardly convex arc shape, one end of which is connected to the other end of the inclined wall (5132); The third arc-shaped wall (5134) is in the shape of an inwardly concave arc, one end of which is connected to the other end of the second arc-shaped wall (5133), and the other end of which is connected to the end of the first arc-shaped wall (5131) away from the paddle (512).

4. The plug valve according to claim 3, characterized in that: The angle at which the protrusion (513) rotates from the initial position to the connection with the sensing component (52) is a, wherein 70°≤a≤110°.

5. The plug valve according to claim 2, characterized in that: A through hole (5111) corresponding to the valve core (3) is provided in the middle of the disc (511), the valve core (3) is inserted into the through hole (5111), and a limiting step for limiting the position of the disc (511) is provided on the outer peripheral wall of the valve core (3).

6. The plug valve according to claim 5, characterized in that: The valve core (3) is provided with a U-shaped groove (31) corresponding to the valve stem (4); the hole wall of the through hole (5111) is recessed inward to form two grooves (5112); the two grooves (5112) are symmetrically distributed at both ends of the U-shaped groove (31), and the two grooves (5112) are connected to the U-shaped groove (31).

7. The plug valve according to claim 2, characterized in that: The sensing component (52) comprises: A first micro switch (521), connected to a side of the valve cover (2) close to the valve body (1), and used for judging whether the valve core (3) is located at the ignition position; The second micro switch (522) is located above the first micro switch (521) and is connected to a side of the valve body (1) close to the valve cover (2). The second micro switch (522) can abut against the protrusion (513) to determine whether the valve core (3) is located at the stir-frying position.

8. The plug valve according to claim 7, characterized in that: The position switch component (5) further comprises: A limiting pressing piece (53) is connected to the outer periphery of the valve stem (4), and the valve cover (2) has a first opening (21) corresponding to the limiting pressing piece (53), so that the limiting pressing piece (53) passes through the first opening (21); A third micro switch (54) is connected to the valve cover (2), and the third micro switch (54) can contact the limit pressing piece (53) and generate a stir-frying signal.

9. The plug valve according to claim 8, characterized in that The valve body (1) further comprises a first air outlet channel (11) and a stir-fry channel (12); the stir-fry channel (12) is connected to the valve cavity and the first air outlet channel (11); the stir-fry channel (12) is connected to a self-priming valve (6); the self-priming valve (6) is connected to the third micro switch (54), and the on / off of the stir-fry channel (12) is controlled according to a signal of the third micro switch (54).

10. A gas stove, characterized in that: It comprises a plug valve as described in any one of claims 1 to 9.

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