Cooking equipment

Abstract

The utility model discloses cooking equipment which comprises a controller and an electromagnetic door lock, and the electromagnetic door lock comprises a frame body, a coil assembly, a valve rod, a microswitch and an elastic piece. The valve rod is arranged in the coil assembly in a penetrating mode, the elastic piece is arranged on the valve rod in a sleeved mode, after the coil assembly is powered on, magnetic force generated by the coil assembly is larger than restoring force of the elastic piece, and the valve rod is pressed downwards so that the connecting end of the valve rod can slide and make contact with the microswitch to trigger the microswitch. Under the action of restoring force of the elastic piece, the valve rod moves upwards so that the connecting end of the valve rod can be separated from the microswitch, whether the electromagnetic door lock is reliably attracted or not is judged by judging whether the microswitch makes contact with the connecting end or not, the microswitch is electrically connected with the controller, the cooking equipment can know the fault state of the electromagnetic valve, and therefore the cooking equipment can be protected from being damaged. Potential safety hazards are reduced, and structural reliability and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances and electrical equipment, in particular to a cooking device. Background Art

[0002] In existing kitchen appliances, electromagnetic door locks are often used to close and open the door, thereby improving the degree of automation.

[0003] In the existing electromagnetic door lock structure, the door is closed by the one-way attraction or release of the electromagnetic valve rod. However, after the electromagnetic door lock fails, if the user controls the door to lock, that is, the coil that controls the electromagnetic door lock is energized, the electromagnetic valve rod will not slide into the lock slot. Since the electromagnetic valve rod is hidden in the door lock structure, the user cannot observe whether the door is completely locked, and the cooking device cannot know the fault state of the electromagnetic valve. If the cooking mode is entered at this time, there will be safety hazards. Utility Model Content

[0004] Therefore, the purpose of the present invention is to provide a cooking device to solve the defect in the prior art that the closing state of the electromagnetic door lock cannot be accurately identified, thereby causing safety hazards.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A cooking device comprises a controller and an electromagnetic door lock, wherein the electromagnetic door lock comprises: a frame, a coil assembly, a valve stem, a micro switch and an elastic member; the coil assembly is fixedly mounted on the frame; the valve stem is inserted into the coil assembly, and a connecting end is provided on the top of the valve stem; the micro switch is located on the frame and is arranged close to the side of the valve stem and is electrically connected to the controller; the elastic member is sleeved on the valve stem, and after the coil assembly is energized, the magnetic force generated by the coil assembly is greater than the restoring force of the elastic member, so that the connecting end slides and touches the micro switch; after the coil assembly is de-energized, under the action of the restoring force of the elastic member, the connecting end slides and disengages from the micro switch.

[0007] The cooking device provided by the utility model has the following beneficial effects:

[0008] The frame provides an installation base for the coil assembly and the micro switch, the valve stem is inserted into the coil assembly, and the elastic member is sleeved on the valve stem. When the coil assembly is energized, the magnetic force generated by the coil assembly is greater than the restoring force of the elastic member, and the valve stem is pressed down so that the connecting end of the valve stem slides and touches the micro switch to trigger the micro switch. When the coil assembly is powered off, the valve stem moves up under the action of the restoring force of the elastic member so that the connecting end of the valve stem is disengaged from the micro switch. Whether the micro switch touches the connecting end can determine whether the electromagnetic door lock is reliably attracted, and the micro switch is electrically connected to the controller. The cooking equipment can know the fault state of the electromagnetic valve, reduce safety hazards, and improve structural reliability and safety.

[0009] According to some embodiments of the utility model, the elastic member includes a first elastic member sleeved on the upper part of the valve stem, the upper end of the first elastic member abuts against the lower surface of the connecting end, and the lower end of the first elastic member abuts against the upper end surface of the coil assembly, and when the coil assembly is in a power-on state, the first elastic member is in a compressed state.

[0010] According to some embodiments of the utility model, the elastic member includes a second elastic member sleeved on the lower part of the valve stem, a fixing card is provided at the lower part of the valve stem, the upper end of the second elastic member abuts against the lower end surface of the coil assembly, the lower end of the second elastic member is connected to the fixing card, and when the coil assembly is in a power-on state, the second elastic member is in a stretched state.

[0011] According to some embodiments of the utility model, an annular groove is provided at the lower end of the valve stem, and the fixing card is annular and fixedly installed in the annular groove.

[0012] According to some embodiments of the present utility model, the bottom of the valve stem is a spherical surface.

[0013] According to some embodiments of the utility model, an avoidance groove is opened on the upper part of the valve stem so that the connecting end is formed above the avoidance groove, and the connecting end is in an inverted cone shape. The upper surface diameter of the connecting end is larger than the lower surface diameter of the connecting end. When the coil assembly is in a powered-on state, the side surface of the connecting end touches the micro switch, and when the coil assembly is in a powered-off state, the micro switch is spaced apart from the side wall of the valve stem or the avoidance groove.

[0014] According to some embodiments of the utility model, the coil assembly includes an outer frame and a wire bundle arranged in the outer frame, the outer frame is fixedly connected to the frame body, and the valve stem is inserted into the wire bundle to slide in the vertical direction inside the wire bundle.

[0015] According to some embodiments of the utility model, the frame includes a first support plate and a second support plate, the first support plate and the second support plate are respectively fixedly connected to the side walls of the coil assembly, and the first support plate is provided with a blocking portion, and the blocking portion is located above the valve stem.

[0016] According to some embodiments of the utility model, the micro switch is arranged on the second support plate and close to the side of the valve stem, and a connecting portion is provided below the first support plate and the second support plate to be suitable for fixed connection with the box body.

[0017] According to some embodiments of the utility model, a box body and a door body are further included, the electromagnetic door lock is arranged on the box body, and the door body is provided with a limit slot that cooperates with the valve stem. When the coil assembly is in a powered-on state, the lower end of the valve stem is located at a first position in the limit slot so as to be suitable for locking the door body to the box body. When the coil assembly is in a powered-off state, the valve stem is located at a second position in the limit slot so as to be suitable for opening or closing the door body, and the first position is deeper than the second position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An exploded schematic diagram of an electromagnetic door lock provided in some embodiments of the utility model;

[0020] Figure 2 A cross-sectional view of an electromagnetic door lock provided in some embodiments of the present utility model;

[0021] Figure 3 A structural view of a valve stem provided in some embodiments of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the electromagnetic door lock in the closed state provided in some embodiments of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the electromagnetic door lock in the disconnected state provided in some embodiments of the utility model;

[0024] Figure 6 Another schematic diagram of the structure of the electromagnetic door lock in the disconnected state provided in some embodiments of the utility model;

[0025] Figure 7 It is a schematic diagram of a local structure in which the valve stem is extended to the first position in some embodiments of the utility model;

[0026] Figure 8 It is a schematic diagram of a local structure in which the valve stem is extended to the second position in some embodiments of the utility model;

[0027] Fig. 9 It is a schematic diagram of the partial structure of the box provided in some embodiments of the utility model;

[0028] Fig.10 It is a schematic diagram of the partial structure of the door body provided in some embodiments of the utility model.

[0029] Explanation of the reference numerals: 1. housing; 2. door body; 3. electromagnetic door lock; 21. limit card slot; 31. frame; 32. coil assembly; 33. valve stem; 34. micro switch; 35. elastic member; 36. fixing card; 311. first support plate; 312. second support plate; 313. blocking part; 314. connecting part; 321. outer frame; 322. wire package; 331. connecting end; 332. avoidance groove; 333. annular card slot; 351. first elastic member; 352. second elastic member. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Reference Figures 1 to 10 As shown, a cooking device includes a controller and an electromagnetic door lock 3, wherein the electromagnetic door lock 3 includes: a frame 31, a coil assembly 32, a valve stem 33, a micro switch 34 and an elastic member 35; the coil assembly 32 is fixedly mounted on the frame 31; the valve stem 33 is inserted into the coil assembly 32, and a connecting end 331 is provided on the top of the valve stem 33; the micro switch 34 is located on the frame 31 and is arranged close to the side of the valve stem 33, and is electrically connected to the controller; the elastic member 35 is sleeved on the valve stem 33, and after the coil assembly 32 is energized, the magnetic force generated by the coil assembly 32 is greater than the restoring force of the elastic member 35, so that the connecting end 331 slides and touches the micro switch 34; after the coil assembly 32 is de-energized, under the action of the restoring force of the elastic member 35, the connecting end 331 slides and disengages from the micro switch 34.

[0035] Specifically, the frame 31 provides an installation basis for the coil assembly 32 and the micro switch 34, the valve stem 33 is inserted into the coil assembly 32, and the elastic member 35 is sleeved on the valve stem 33. When the coil assembly 32 is energized, the magnetic force generated by the coil assembly 32 is greater than the restoring force of the elastic member 35, and the valve stem 33 is pressed down so that the connecting end 331 of the valve stem 33 slides and touches the micro switch 34 to trigger the micro switch 34. When the coil assembly 32 is de-energized, under the action of the restoring force of the elastic member 35, the valve stem 33 moves up so that the connecting end 331 of the valve stem 33 is disengaged from the micro switch 34. Whether the micro switch 34 touches the connecting end 331 is determined by whether the electromagnetic door lock 3 is reliably attracted, and the micro switch 34 is electrically connected to the controller, so that the cooking device can know the fault state of the electromagnetic valve, reduce safety hazards, and improve structural reliability and safety.

[0036] It is understandable that the micro switch 34 is provided with a prompt component. When the connection end 331 touches the micro switch 34, the prompt component of the micro switch 34 is activated. The prompt component is a display light or a prompt horn. Through the feedback of the micro switch 34, it is determined whether the coil component 32 is in an on-off state, thereby determining whether the electromagnetic door lock 3 is reliably attracted.

[0037] The controller is in communication connection with the micro switch 34 , and in the attracted state, the micro switch 34 is suitable for feeding back the power-on signal and the power-off signal of the coil assembly 32 to the control assembly.

[0038] Reference Figures 1 to 6 As shown, according to some embodiments of the utility model, the elastic member 35 includes a first elastic member 351 which is sleeved on the upper part of the valve stem 33, the upper end of the first elastic member 351 abuts against the lower surface of the connecting end 331, and the lower end of the first elastic member 351 abuts against the upper end surface of the coil assembly 32, and when the coil assembly 32 is in an energized state, the first elastic member 351 is in a compressed state.

[0039] Specifically, the first elastic member 351 is sleeved on the upper part of the valve stem 33. When the coil assembly 32 is in the power-on state, under the action of the electromagnetic force, the electromagnetic force is greater than the elastic force of the first elastic member 351, the valve stem 33 is adsorbed and moves downward, the first elastic member 351 is compressed, and the electromagnetic door lock 3 is in a reliable suction state. When the coil assembly 32 is in the power-off state, the electromagnetic force is lost, the first elastic member 351 rebounds to the original length, thereby driving the valve stem 33 to move upward, and the electromagnetic door lock 3 is in a disconnectable state.

[0040] In some embodiments of the utility model, the elastic member 35 includes a second elastic member 352 which is sleeved on the lower part of the valve stem 33, and a fixing card 36 is provided at the lower part of the valve stem 33. The upper end of the second elastic member 352 abuts against the lower end surface of the coil assembly 32, and the lower end of the second elastic member 352 is connected to the fixing card 36. When the coil assembly 32 is in a power-on state, the second elastic member 352 is in a stretched state.

[0041] Specifically, the second elastic member 352 is sleeved on the lower part of the valve stem 33. When the coil assembly 32 is in the power-on state, under the action of the electromagnetic force, which is greater than the elastic force of the first elastic member 351, the valve stem 33 is adsorbed and moves downward, and the first elastic member 351 is stretched, and the electromagnetic door lock 3 is in a reliable suction state. When the coil assembly 32 is in the power-off state, the electromagnetic force is lost, and the first elastic member 351 retracts to its original length, thereby driving the valve stem 33 to move upward, and the electromagnetic door lock 3 is in a disconnectable state.

[0042] It can be understood that the first elastic member 351 or the second elastic member 352 can be separately sleeved on the valve stem 33, or the first elastic member 351 and the second elastic member 352 can be sleeved on the valve stem 33 at the same time. Specifically, when the coil assembly 32 is in the power-off state, the first elastic member 351 provided on the upper part of the valve stem 33 is in a stretched state, and the second elastic member 352 provided on the lower part of the valve stem 33 is in a compressed state, and the connecting end 331 of the valve stem 33 and the micro switch 34 are separated from each other. When the bottom of the valve stem 33 is subjected to an upward supporting force, the valve stem 33 moves upward. At this time, the first elastic member 351 is further stretched, and the second elastic member 352 is further compressed. The connecting end 331 of the valve stem 33 and the micro switch 34 are still separated from each other. However, under the elastic force of the first elastic member 351 and the second elastic member 352, when the upward supporting force at the bottom of the valve stem 33 disappears, the valve stem 33 will slide downward, so that the first elastic member 351 and the second elastic member 352 return to the initial equilibrium state. Therefore, the functions of the first elastic member 351 and the second elastic member 352 are as follows: when the coil is not energized, the first elastic member 351 and the second elastic member 352 place the valve stem 33 in a pre-closed state, thereby ensuring that the door body 2 is in a pre-closed state when it is closed, thereby improving convenience.

[0043] And the setting of the first elastic member 351 makes the up and down movement of the valve body recoverable. When the coil assembly 32 is energized, the valve stem 33 is pressed downward by the electromagnetic force. At this time, the first elastic member 351 is in a compressed state, and the second elastic member 352 is in a stretched state. The connecting end 331 of the valve stem 33 contacts the micro switch 34 to indicate that the electromagnetic door lock 3 is in a reliably attracted state. When the coil assembly 32 is de-energized, the valve stem 33 moves upward under the elastic force of the first elastic member 351 to facilitate the opening of the door body 2.

[0044] The first elastic member 351 and the second elastic member 352 are provided so that the valve stem 33 can move autonomously, thereby reducing manual operation and improving the convenience of operation. The first elastic member 351 and the second elastic member 352 are both springs, which are low in cost and easy to replace. The elastic coefficients of the first elastic member 351 and the second elastic member 352 are not limited to the present invention.

[0045] Reference Figure 3 As shown, in some embodiments of the present invention, an annular groove 333 is provided at the lower end of the valve stem 33 , and the fixing card 36 is annular and fixedly installed in the annular groove 333 .

[0046] Specifically, an annular groove 333 is provided at the lower end of the valve stem 33, a fixed card 36 is fixedly installed in the annular groove 333, the lower end of the second elastic member 352 is connected to the fixed card 36, and the upper end of the second elastic member 352 is connected to the lower end surface of the coil assembly 32. When the coil assembly 32 is not energized, the elastic force of the second elastic member 352 drives the valve stem 33 to slide.

[0047] In some embodiments of the present invention, the bottom of the valve stem 33 is a spherical surface.

[0048] Specifically, the bottom of the valve stem 33 is set to be a spherical surface. When the coil assembly 32 is not energized, when the bottom of the valve stem 33 is squeezed from one side, the valve stem 33 can still slide upward to avoid it.

[0049] In some embodiments of the utility model, an avoidance groove 332 is opened on the upper part of the valve stem 33, so that the connecting end 331 is formed above the avoidance groove 332, and the connecting end 331 is in the shape of an inverted cone, and the upper surface diameter of the connecting end 331 is larger than the lower surface diameter of the connecting end 331. When the coil assembly 32 is in the power-on state, the side surface of the connecting end 331 touches the micro switch 34, and when the coil assembly 32 is in the power-off state, the micro switch 34 is spaced apart from the side wall of the valve stem 33 or the avoidance groove 332.

[0050] Specifically, an avoidance groove 332 is provided on the upper part of the valve stem 33. The setting of the avoidance groove 332 forms a connecting end 331 at the upper end of the valve stem 33. The connecting end 331 is in the shape of an inverted cone. The diameter of the cross section of the connecting end 331 gradually increases from bottom to top. Therefore, when the coil assembly 32 is energized, the valve stem 33 moves downward under the action of the electromagnetic force, and the connecting end 331 moves downward with the valve stem 33 and contacts the micro switch 34. Since the diameter of the cross section of the connecting end 331 gradually increases, when the connecting end 331 moves downward, the micro switch 34 is gradually squeezed until it reaches the attracted state. After the squeezing position of the micro switch 34 reaches the set position, the indication information is fed back.

[0051] It is understandable that the micro switch 34 can be a mechanical switch, that is, the micro switch 34 can slide horizontally when squeezed, and feedback indication information when sliding to a preset position, or the micro switch 34 can be a pressure switch, that is, when the pressure on the micro switch 34 reaches a threshold, feedback indication information. It should be noted that the control method of the micro switch 34 is a prior art and is not an improvement of the present utility model.

[0052] Reference Figure 1As shown, in some embodiments of the utility model, the coil assembly 32 includes an outer frame 321 and a wire package 322 arranged in the outer frame 321, the outer frame 321 is fixedly connected to the frame body 31, and the valve stem 33 is passed through the wire package 322 to slide in the vertical direction inside the wire package 322.

[0053] In some embodiments of the present invention, the frame 31 includes a first support plate 311 and a second support plate 312, the first support plate 311 and the second support plate 312 are respectively fixedly connected to the side walls of the coil assembly 32, and the first support plate 311 is provided with a blocking portion 313, and the blocking portion 313 is located above the valve stem 33.

[0054] Reference Figures 4 to 6 As shown, in some embodiments of the present invention, the micro switch 34 is arranged on the second support plate 312 and close to the side of the valve stem 33, and a connecting portion 314 is provided below the first support plate 311 and the second support plate 312 to be suitable for fixed connection with the box body 1.

[0055] Specifically, a blocking portion 313 is provided above the first support plate 311, and the blocking portion 313 is located above the valve stem 33, so as to prevent the valve stem 33 from popping out when the first elastic member 351 and / or the second elastic member 352 fail, thereby ensuring the stability of the structure. A connecting portion 314 is provided below the first support plate 311 and the second support plate 312, and the connecting portion 314 is fixedly connected to the box body 1 by a fastener, so as to achieve installation and fixation.

[0056] Reference Figures 7 to 10 As shown, in some embodiments of the utility model, a box body 1 and a door body 2 are also included, the electromagnetic door lock 3 is arranged on the box body 1, and the door body 2 is provided with a limit card slot 21 that cooperates with the valve stem 33. When the coil assembly 32 is powered on, the lower end of the valve stem 33 is located at a first position in the limit card slot 21 so as to lock the door body 2 on the box body 1. Figure 7 As shown, when the coil assembly 32 is in the power-off state, the valve stem 33 is located in the second position in the limit slot 21 to be suitable for opening or closing the door body 2, referring to Figure 8 As shown, the first position is deeper than the second position.

[0057] Specifically, an electromagnetic door lock 3 is arranged on the oven body 1, and the valve stem 33 of the electromagnetic door lock 3 cooperates with the limit slot 21 on the door body 2 to lock. When the coil assembly 32 is energized, the lower end portion of the valve stem 33 is located at a first position in the limit slot 21 so as to cover and fix the door body 2 on the housing 1. When the coil assembly 32 is de-energized, the valve stem 33 loses the electromagnetic force, and the valve stem 33 is located at a second position in the limit slot 21. Under the action of the elastic member 35, the valve stem 33 is suitable for sliding up and down in the coil assembly 32, so that the door body 2 can be opened or closed. The micro switch 34 in the electromagnetic door lock 3 can monitor the power on and off status of the coil assembly 32 in real time, that is, monitor the valve stem 33 in the first position or the second position of the limit slot 21, thereby avoiding the occurrence of safety accidents and improving safety.

[0058] By connecting the micro switch 34 to the controller for communication, the micro switch 34 monitors the power on and off of the coil assembly 32, that is, after monitoring the valve stem 33 in the first position or the second position of the limit slot 21, the micro switch 34 is fed back to the controller to further control the opening or closing of the heating element in the box 1, and further ensure safety. When the valve stem 33 is in the second position of the limit slot 21, the heating element in the box 1 is heating, which is prone to safety accidents. The joint control of the micro switch 34 ensures safety and reliability. It should be noted that the control method of the control component is a conventional technical means.

[0059] It can be understood that the first position of the limit slot 21 is deeper than the second position. Figure 7 and Figure 8 As shown, after the valve stem 33 extends to the first position, the limiting slot 21 is suitable for limiting and fixing the valve stem 33, so that the door body 2 is fixedly covered on the box body 1 to prevent the door body 2 from moving horizontally. When the coil assembly 32 is powered off, the valve stem 33 moves back to the second position of the limiting slot 21 under the action of the elastic member 35, and the limiting slot 21 and the valve stem 33 are in a pre-closed state. At this time, the door body 2 is in a pre-closed state when it is closed. On the one hand, it can prevent the rapid loss of heat in the box body 1 after power failure, and on the other hand, it can prevent the door body 2 from opening due to inertia; through the action of external force, when the door body 2 is subjected to an outward pulling force, the bottom of the valve stem 33 abuts against the peripheral wall of the limiting slot 21, and the bottom of the valve stem 33 is subjected to an upward thrust, and is separated from the second position of the limiting slot 21. The door body 2 can be opened outward after losing the lock of the valve stem 33.

[0060] It should be noted that, since the bottom of the valve stem 33 is arranged in an arc shape, when the coil assembly 32 is powered off and the bottom of the valve stem 33 is subjected to force, the valve stem 33 will move upward, thereby exiting the limit slot 21 .

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A cooking device, comprising a controller and an electromagnetic door lock (3), characterized in that: The electromagnetic door lock (3) comprises: Frame (31); A coil assembly (32) is fixedly mounted on the frame (31); A valve stem (33) is inserted into the coil assembly (32), and a connecting end (331) is provided at the top of the valve stem (33); A micro switch (34) is located on the frame (31) and is arranged close to the side of the valve stem (33) and is electrically connected to the controller; The elastic member (35) is sleeved on the valve stem (33); after the coil assembly (32) is powered on, the magnetic force generated by the coil assembly (32) is greater than the restoring force of the elastic member (35), so that the connecting end (331) slides and touches the micro switch (34); after the coil assembly (32) is powered off, under the action of the restoring force of the elastic member (35), the connecting end (331) slides and disengages from the micro switch (34).

2. The cooking device according to claim 1, characterized in that: The elastic member (35) includes a first elastic member (351) which is sleeved on the upper part of the valve stem (33), the upper end of the first elastic member (351) abuts against the lower surface of the connecting end (331), and the lower end of the first elastic member (351) abuts against the upper end surface of the coil assembly (32). When the coil assembly (32) is in an energized state, the first elastic member (351) is in a compressed state.

3. The cooking device according to claim 1 or 2, characterized in that: The elastic member (35) includes a second elastic member (352) sleeved on the lower part of the valve stem (33), and a fixing card (36) is provided at the lower part of the valve stem (33). The upper end of the second elastic member (352) abuts against the lower end surface of the coil assembly (32), and the lower end of the second elastic member (352) is connected to the fixing card (36). When the coil assembly (32) is in a powered state, the second elastic member (352) is in a stretched state.

4. The cooking device according to claim 3, characterized in that: The lower end of the valve stem (33) is provided with an annular groove (333), and the fixing card (36) is annular and fixedly installed in the annular groove (333).

5. The cooking device according to claim 1, characterized in that: The bottom of the valve stem (33) is a spherical surface.

6. The cooking device according to claim 5, characterized in that An avoidance groove (332) is provided on the upper part of the valve stem (33) so that the connecting end portion (331) is formed above the avoidance groove (332); the connecting end portion (331) is in the shape of an inverted truncated cone; the upper surface diameter of the connecting end portion (331) is larger than the lower surface diameter of the connecting end portion (331); when the coil assembly (32) is in a powered-on state, the side surface of the connecting end portion (331) contacts the micro switch (34); when the coil assembly (32) is in a powered-off state, the micro switch (34) is spaced apart from the side wall of the valve stem (33) or the avoidance groove (332).

7. The cooking device according to claim 1, characterized in that The coil assembly (32) comprises an outer frame (321) and a coil package (322) arranged in the outer frame (321); the outer frame (321) is fixedly connected to the frame body (31); and the valve stem (33) is inserted into the coil package (322) so as to slide in the vertical direction in the coil package (322).

8. The cooking device according to claim 1, characterized in that The frame (31) comprises a first support plate (311) and a second support plate (312); the first support plate (311) and the second support plate (312) are respectively fixedly connected to the side walls of the coil assembly (32); a blocking portion (313) is provided on the first support plate (311); and the blocking portion (313) is located above the valve stem (33).

9. The cooking device according to claim 8, characterized in that The micro switch (34) is arranged on the second support plate (312) and is arranged on a side close to the valve stem (33). Connecting parts (314) are provided below the first support plate (311) and the second support plate (312) so as to be fixedly connected to the box body (1).

10. The cooking device according to any one of claims 5 to 9, characterized in that: It also includes a box body (1) and a door body (2), the electromagnetic door lock (3) is arranged on the box body (1), and the door body (2) is provided with a limit slot (21) that cooperates with the valve stem (33). When the coil assembly (32) is in a powered state, the lower end of the valve stem (33) is located at a first position in the limit slot (21) so as to lock the door body (2) on the box body (1); when the coil assembly (32) is in a powered-off state, the valve stem (33) is located at a second position in the limit slot (21) so as to open or close the door body (2), and the first position is deeper than the second position.

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