A cooking appliance configured with an automatic door closing device

Abstract

The application provides a cooking device provided with an automatic door closing device, aiming at solving the problem that the automatic door closing structure of the prior art cooking device is too complex, resulting in large occupied space and high cost. The cooking device provided with the automatic door closing device comprises a door body provided with a fixed door hook, a cooking device body provided with an outer sliding block guide rail, and a door closing assembly arranged on the cooking device body, wherein the door closing assembly comprises an outer sliding block slidingly arranged on the outer sliding block guide rail and a first elastic member arranged between the rear side of the outer sliding block and the cooking device body and in a stretched state; the outer sliding block comprises an opening door position and a closing door position, the front side of the outer sliding block is provided with a locking assembly for being locked with the fixed door hook when the closing door position is reached and an unlocking assembly for unlocking the locking of the fixed door hook by the locking assembly when the opening door position is reached. The automatic door closing device provided by the application has the advantages of simple structure, small occupied space, low cost and automatic door closing.

Description

Technical Field

[0001] This invention belongs to the field of cooking appliance technology, and specifically relates to a cooking appliance equipped with an automatic door closing device. Background Technology

[0002] Traditional cooking appliances require manual closing. Insufficient force can cause the door to not close properly, leading to steam leakage, while excessive force can cause the door to slam shut and produce significant noise. Current technology has developed cooking appliances with automatic closing mechanisms to achieve fully closed doors. These mechanisms apply a small force to the door to activate the closing mechanism, which then automatically closes the door. However, existing automatic closing mechanisms are overly complex and space-consuming, resulting in high costs when applied to side-opening cooking appliances. Summary of the Invention

[0003] This invention provides a cooker equipped with an automatic door closing device, which aims to solve the problem that the automatic door closing structure of existing cookers is too complex, resulting in large space occupation and high cost.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A cooker equipped with an automatic door closing device includes:

[0006] The door is equipped with a fixed door hook;

[0007] The cooking appliance body is equipped with an external slider guide rail; and,

[0008] A door closing assembly is disposed on the cooker body. The door closing assembly includes an outer slider that is slidably disposed on the outer slider guide rail and a first elastic member disposed between the rear side of the outer slider and the cooker body and in a stretched state. The outer slider includes an open position when the door is open and a closed position when the door is closed. The front side of the outer slider is provided with a locking component for locking with the fixed door hook when the door is closed and an unlocking component for releasing the locking component from locking the fixed door hook when the door is open.

[0009] When the outer slider is in the open position, the unlocking component releases the locking component from locking the fixed door hook and restricts the locking component to the unlocked state. When the locking component is in the unlocked state, the locking component restricts the outer slider to the open position under the action of the unlocking component. When the outer slider is in the closed position, the locking component locks the fixed door hook and is in the locked state.

[0010] A further solution: When the door is closed, the fixed door hook moves backward and drives the unlocking component to move backward. The unlocking component releases the restriction on the locking component in the unlocked state. The locking component switches from the unlocked state to the locked state locked with the fixed door hook and releases the restriction on the outer slider in the open position. The first elastic element drives the outer slider to the closed position under the action of elastic reset.

[0011] When the door is opened, the fixed door hook moves forward and drives the outer slider to move from the closed position to the open position. The unlocking component moves forward and drives the locking component to switch from the locked state to the unlocked state. Under the action of the unlocking component, the locking component restricts the outer slider to the open position.

[0012] Based on the above technical solution: During the closing process, the user only needs to apply a small pushing force to the door to move the fixed door hook toward the cooker body. At the same time, the fixed door hook drives the unlocking component to move backward, so that the unlocking component releases the restriction on the locking component in the unlocked state and releases the restriction on the outer slider in the open position. The locking component is locked together with the fixed door hook. Under the action of elastic reset, the first elastic element drives the outer slider to move to the closed position. At the same time, the outer slider drives the fixed door hook and the door to automatically complete the closing process through the locking component. The operation is simple and convenient, and can ensure that the door is completely closed.

[0013] A further embodiment: The locking assembly includes a rocker arm that is elastic and disposed at the front end of the outer slider. The front end of the rocker arm is provided with a rocker arm locking part, and the fixed door hook is provided with a fixed door hook locking part. The rocker arm locking part locks with the fixed door hook locking part by moving closer to the fixed door hook locking part, and unlocks from the fixed door hook locking part by moving away from the fixed door hook locking part.

[0014] Based on the above technical solution: when the door is closed, driven by the fixed door hook, the unlocking component releases the restriction on the rocker arm in the unlocked state. At this time, the elastic rocker arm can swing toward the fixed door hook through its own elastic reset action, so that the rocker arm locking part and the fixed door hook locking part are locked together.

[0015] A further solution: The cooker body is provided with a rocker arm guide rail, and the rocker arm is slidably mounted on the rocker arm guide rail.

[0016] Based on the above technical solution: when the first elastic element drives the outer slider to slide along the outer slider guide rail in the closing direction, the outer slider drives the rocker arm to slide along the rocker arm guide rail in the closing direction. At the same time, the rocker arm guide rail also plays an auxiliary limiting role, locking the rocker arm locking part with the fixed door hook locking part together, ensuring that the door body is in a closed state after automatic closing.

[0017] A further embodiment: the rocker arms are at least two in number and distributed around the fixed door hook, and the fixed door hook is provided with a fixed door hook locking part that cooperates with the rocker arm locking part of each rocker arm.

[0018] Based on the above technical solution: preferably two rocker arms, located on the upper and lower sides of the fixed door hook respectively.

[0019] A further solution: The unlocking component includes an inner slider disposed between the rocker arms and located outside the outer slider, and a second elastic element disposed between the inner slider and the outer slider. The cooker body is provided with an inner slider guide rail, and the inner slider is slidably disposed on the inner slider guide rail. The front end of the rocker arm and the side away from the fixed door hook locking part is provided with a hook-shaped part, and the cooker body is provided with a rocker arm abutment part that cooperates with the hook-shaped part.

[0020] When the door is opened, the fixed door hook moves forward and drives the outer slider to move from the closed position to the open position. The inner slider slides forward under the action of the second elastic element and drives the rocker arm locking part to release from the fixed door hook locking part and causes the hook-shaped part to abut against the rocker arm abutment part.

[0021] When the door is closed, the fixed door hook moves backward and drives the inner slider to slide backward and compress the second elastic element. The inner slider releases the restriction on the rocker arm locking part in the unlocked state. The rocker arm locking part moves closer to the fixed door hook locking part and locks with the fixed door hook locking part. The hook-shaped part disengages from the rocker arm hook part.

[0022] Based on the above technical solution: By setting the unlocking component to include an inner slider and a second elastic element, when closing the door, only a small pushing force is needed on the door body. The fixed door hook drives the inner slider to move backward and compress the second elastic element. The compressed second elastic element has a tendency to return to its original position. After the inner slider moves backward, it releases the restriction on the rocker arm. Under its own elastic return action, the rocker arm moves towards the fixed door hook and locks with it. When the door is in the open position, the inner slider moves forward under the action of the second elastic element and drives the rocker arm away from the fixed door hook, thus unlocking it and allowing the door to be opened further. At the same time, the hook-shaped part at the front end of the rocker arm is driven by the inner slider to abut against the rocker arm abutment part. The inner slider, driven by the second elastic element, restricts the rocker arm to the unlocked state and restricts the outer slider to the open position, facilitating the next closing action. Placing the inner slider between the rocker arms and in front of the outer slider makes the structure compact and occupies less space.

[0023] A further embodiment: The inner slider is provided with inner slider driving parts on both the upper and lower sides, which are used to drive the rocker arm locking part to move away from the fixed door hook locking part when the door is open, and the rocker arm is provided with a groove that cooperates with the inner slider driving part when the door is closed.

[0024] Based on the above technical solution: when the door is in the closed position, the inner slider drive part slides into the groove, thereby releasing the restriction on the rocker arm, so that the rocker arm can move towards the fixed door hook through elastic action and lock with the fixed door hook.

[0025] A further option: the second elastic element is a spring.

[0026] A further solution: a damper is provided between the rear side of the outer slider and the cooking appliance body.

[0027] Based on the above technical solution: when closing the door, after the locking component locks with the fixed door hook, and the first elastic element drives the outer slider, locking component and fixed door hook to slide further in the closing direction to complete the closing process under its own elastic reset action, the damper provides the outer slider with resistance opposite to the force of the first elastic element, thereby slowing down the closing speed of the door and reducing the noise and vibration generated by the collision between the door and the cooking appliance body at the closing position at the end.

[0028] A further embodiment: the damper is mounted on the cooker body and the movable end of the damper is fixedly connected to the outer slider.

[0029] Based on the above technical solution: the movable end of the damper is fixedly connected to the outer slider, so that when the door is opened, the movable end of the damper is reset as the outer slider slides outward, ensuring that the damper returns to the working state, so that the damping effect can be achieved when the door is closed next time.

[0030] A further solution: The outer slider is provided with a first limiting end on its rear side, and the cooker body is provided with a second limiting end. When the outer slider is in the closed position, the first limiting end abuts against the second limiting end to keep the outer slider in the closed position.

[0031] Based on the above technical solution: the first limiting end abuts against the second limiting end, so that when the first elastic element drives the outer slider to slide to the closed position, it can no longer slide in the closing direction, thus restricting the outer slider to the closed position.

[0032] A further embodiment: The door closing assembly also includes at least one micro switch disposed on the cooker body, and a switch driving part for triggering the micro switch is provided on the rear side of the outer slider. When the outer slider is in the closed position, the switch driving part triggers the micro switch.

[0033] Based on the above technical solution: the micro switch is directly set on the rear side of the outer slider, so that when the door is closed, when the first elastic element drives the outer slider to the closed position, the switch drive unit on the outer slider can directly trigger the micro switch to power on the cooker; when the door is opened, as the person pulls the door and the fixed door hook drives the outer slider to slide outward, the switch drive unit disengages from the micro switch, realizing power off when the door is opened, which is safer during use; and the switch drive unit on the outer slider directly triggers the micro switch, making the structure simpler and occupying less space.

[0034] A further solution: the first elastic element is an outer slider tension spring, and the two ends of the outer slider tension spring are respectively connected to the outer slider and the cooking appliance body.

[0035] A further embodiment: The door body is also provided with a movable door hook located above the fixed door hook, the movable door hook is slidably disposed on the door body and a door hook tension spring is provided between the movable door hook and the door body to pull down the movable door hook;

[0036] The cooker body is provided with a movable door hook attachment part that corresponds to the movable door hook when the door is closed. When the outer slider is in the closed position, the movable door hook is attached to the movable door hook attachment part.

[0037] Based on the above technical solution: when the movable door hook and the fixed door hook are located on the upper and lower sides of the door body respectively, the door body can close better at the top and bottom.

[0038] A further embodiment: The rear end of the movable door hook is provided with a downwardly bent hook portion, and the lower end of the hook portion is provided with a switch drive portion;

[0039] The movable door hook abutment includes a clearance hole, a front guide slope located in front of the clearance hole and inclined upward from the front to the rear, and a rear guide slope located in front of and behind the clearance hole and inclined downward from the front to the rear. A micro switch is provided on the rear side of the rear guide slope.

[0040] When the door is in the closed position, the hook portion at the rear end of the movable door hook is located behind the clearance hole, and the front end of the movable door hook is located in front of the clearance hole, and the switch drive unit triggers the micro switch.

[0041] Based on the above technical solution: the door hook spring provides a downward pulling force, ensuring that the hook end of the movable door hook firmly abuts against the micro switch, guaranteeing power supply and stabilizing the door's position after closing. This achieves power cut-off when opening and power-on when closing, resulting in improved safety.

[0042] The beneficial effects of this invention are as follows:

[0043] This invention provides a fixed door hook on the door body, and a locking component that locks with the outer slider when it is in the closed position, and an unlocking component that releases the locking component from locking the fixed door hook when it is in the open position. When the outer slider is in the open position, the unlocking component can release the locking component from locking the fixed door hook. At this time, the locking component, under the action of the unlocking component, restricts the outer slider to the open position, making it easier to close the door next time. When the door is closed, the locking component locks with the fixed door hook, making the outer slider and the door body form a whole. Under the reset action of the first elastic element, the whole can automatically move to the closed position, realizing automatic closing.

[0044] In this invention, the locking component not only has the function of restricting the outer slider to the open position when the door is unlocked, but also has the function of locking with the fixed door hook when the door is locked. The locking component combines two functions, making the overall structure simpler, requiring fewer parts, and occupying less space.

[0045] In this invention, the unlocking component not only has the function of releasing the locking component from the fixed door hook when the door is in the open position, but also has the function of restricting the locking component to the unlocked state and restricting the outer slider to the open position. The unlocking component combines two functions, making the structure simpler, requiring fewer parts, and occupying less space. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of a cooker equipped with an automatic door closing device according to the present invention.

[0048] Figure 2 This is an exploded structural diagram of a cooker equipped with an automatic door closing device according to the present invention.

[0049] Figure 3 This is a schematic diagram of the outer slider of a cooker equipped with an automatic door closing device according to the present invention.

[0050] Figure 4 This is a schematic diagram of the fixed door hook and the movable door hook of a cooker equipped with an automatic door closing device according to the present invention.

[0051] Figure 5 This is a schematic diagram of the door closing assembly of a cooker equipped with an automatic door closing device according to the present invention.

[0052] Figure 6 This is a schematic diagram of the outer slider guide rail, inner slider guide rail, and rocker arm guide rail of a cooker equipped with an automatic door closing device according to the present invention.

[0053] Figure 7 This is a schematic diagram of the inner slider of a cooker equipped with an automatic door closing device according to the present invention.

[0054] Figure 8 This is a schematic diagram of the structure of a cooker equipped with an automatic door closing device in the open position according to the present invention.

[0055] Figure 9 This is a schematic diagram of the structure of a cooker equipped with an automatic door closing device, where the door moves toward the cooker body when the door is closed.

[0056] Figure 10 This invention relates to a cooker equipped with an automatic door closing device, wherein the door is compared to... Figure 9 A schematic diagram of the structure moving further towards the cooking appliance body.

[0057] Figure 11 This invention relates to a cooker equipped with an automatic door closing device, wherein the door is compared to... Figure 10 A schematic diagram of the structure moving further towards the cooking appliance body.

[0058] Figure 12 This is a schematic diagram of the structure of a cooker equipped with an automatic door closing device when the door is fully closed, according to the present invention.

[0059] Figure 13 This is a schematic diagram of the structure of a cooker equipped with an automatic door closing device, where the door moves away from the cooker body when the door is opened.

[0060] Figure 14 This invention relates to a cooker equipped with an automatic door closing device, where the door is larger than the previous one when opened. Figure 13 A structural diagram showing the structure further away from the main body of the cooker.

[0061] Figure 15 This invention relates to a cooker equipped with an automatic door closing device, where the door is larger than the previous one when opened. Figure 14 A structural diagram showing the structure further away from the main body of the cooker.

[0062] Explanation of the labels in the diagram:

[0063] 1-Door body; 111-Door hook spring hook; 112-Upper door hinge; 113-Lower door hinge; 114-Upper door hinge support; 115-Lower door hinge support; 116-Leaving hole; 117-Front guide slope; 118-Rear guide slope; 2-Fixed door hook; 211-Fixed door hook locking part; 212-Fixed door hook driving part; 213-Screw; 3-Modible door hook; 311-Door hook spring; 312-Bent hook part; 313-Third switch driving part; 314-Modible door hook guide rail; 315-Modible door hook hook; 4-Cooker body; 41-Interlock support base; 411-Second limit end; 412-Outer slider guide rail; 413-Inner slider guide rail; 414- Rocker arm guide rail; 415-rocker arm mounting part; 42-interlocking support cover; 5-outer slider; 511-rocker arm; 512-rocker arm locking part; 513-hook-shaped part; 514-first limiting end; 515-slot; 516-outer slider guide part; 517-rocker arm guide part; 518-groove; 519-outer slider tension spring hook; 520-first switch drive part; 521-second switch drive part; 6-inner slider; 611-inner slider drive part; 612-inner slider guide part; 7-second elastic element; 8-first elastic element; 9-first micro switch; 10-second micro switch; 11-third micro switch; 12-damper; 1211-damper movable end. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0065] like Figures 1 to 7 As shown, this embodiment provides a cooker equipped with an automatic door closing device, including:

[0066] Door body 1, equipped with fixed door hook 2;

[0067] The cooking appliance body 4 is provided with an outer slider guide rail 412; and,

[0068] A door closing assembly is provided on the cooker body 4. The door closing assembly includes an outer slider 5 slidably disposed on the outer slider guide rail 412 and a first elastic member 8 disposed between the rear side of the outer slider 5 and the cooker body 4 and in a stretched state. The outer slider 5 includes an open position when it is in an open state and a closed position when it is in a closed state. The front side of the outer slider 5 is provided with a locking component for locking with the fixed door hook 2 when it is in the closed position and an unlocking component for releasing the locking component from locking the fixed door hook 2 when it is in the open position.

[0069] like Figure 8 As shown, when the outer slider 5 is in the open position, the unlocking component releases the locking component from locking the fixed door hook 2 and restricts the locking component to the unlocked state. When the locking component is in the unlocked state, the locking component, under the action of the unlocking component, restricts the outer slider 5 to the open position; as shown... Figure 12 As shown, when the outer slider 5 is in the closed position, the locking component is locked to the fixed door hook 2 and the locking component is in a locked state.

[0070] like Figure 1 , Figure 2 and Figure 6 As shown, the cooker described in this embodiment can be a side-opening cooker such as an oven or grill. One side of the door 1 is hinged to the cooker body 4, and the other side can rotate relative to the cooker body 4. The door is opened and closed by rotation. The door 1 is hinged to the cooker body 4 via an upper door hinge 112 and a lower door hinge 113. The door 1 is provided with an upper door hinge support 114 corresponding to the upper door hinge 112 and a lower door hinge support 115 corresponding to the lower door hinge 113. The fixed door hook 2 and the movable door hook 3 are both provided on the side of the door 1 that can be opened and closed freely. Inside the cooker body 4, there is an interlocking support base 41 and an interlocking support cover 42 for installing the door closing assembly. The interlocking support base 41 and the interlocking support cover 42 are interlocked together to form a space for installing the door closing assembly. The outer slider guide rail 412, the inner slider guide rail 413, and the rocker arm guide rail 414 are respectively provided at the corresponding positions of the interlocking support base 41 and the interlocking support cover 42. The outer slider 5 is provided with an outer slider guide part 516 that is slidably disposed in the outer slider guide rail 412. The outer slider guide part 516 can be a guide post.

[0071] The first elastic element 8 can be a tension spring for the outer slider 5, and both ends of the tension spring for the outer slider 5 are respectively connected to the outer slider 5 and the cooking appliance body 4. Figure 3 and Figure 6 As shown, in one specific way, an outer slider spring hook 519 is provided on the rear side of the outer slider 5, and a spring hook is provided on the cooking appliance body 4. The two ends of the outer slider 5 spring are hooked on the outer slider spring hook 519 and the spring hook, respectively.

[0072] Based on the above solutions, such as Figures 8 to 12As shown, when closing the door, the user only needs to apply a small pushing force to the door 1 to move the fixed door hook 2 toward the cooker body 4. The fixed door hook 2 moves backward and drives the unlocking component to move backward. The unlocking component releases the restriction on the locking component in the unlocked state. The locking component switches from the unlocked state to the locked state locked with the fixed door hook 2 and releases the restriction on the outer slider 5 in the open position. Under the action of the elastic reset, the first elastic member 8 drives the outer slider 5 to move to the closed position. During the process of the outer slider 5 sliding along the outer slider guide rail 412, the locking component drives the fixed door hook 2 and the door 1 to slide in the closing direction, thereby realizing the automatic closing of the door 1.

[0073] like Figures 12 to 15 As shown, when the door is opened, the fixed door hook 2 moves forward, causing the outer slider 5 to move from the closed position to the open position. The unlocking component moves forward, causing the locking component to switch from the locked state to the unlocked state. Under the action of the unlocking component, the locking component restricts the outer slider 5 to the open position as it was in the open state, facilitating closing the door next time. In the unlocked state, the locking component releases the fixed door hook 2. At this time, continuing to pull the door body 1 forward will open the door body 1.

[0074] Based on any of the above schemes, such as Figure 3 and Figure 4 As shown, the locking assembly may include a rocker arm 511 that is elastic and located at the front end of the outer slider 5. The rear end of the rocker arm 511 may be integrally formed with the outer slider 5. The front end of the rocker arm 511 is provided with a rocker arm locking part 512, and the fixed door hook 2 is provided with a fixed door hook locking part 211. The rocker arm locking part 512 locks with the fixed door hook locking part 211 by moving closer to it, and unlocks by moving away from it. As a specific embodiment, the rocker arm locking part 512 may be an arc-shaped protrusion, and the fixed door hook locking part 211 may be an arc-shaped groove adapted to the arc-shaped protrusion.

[0075] Among them, such as Figure 3 and Figure 6As shown, to ensure that the rocker arm locking part 512 is locked together with the fixed door hook locking part 211 and slides in the closing direction during the closing process, a rocker arm guide rail 414 is provided on the cooker body 4. The rocker arm 511 is slidably disposed on the rocker arm guide rail 414. Specifically, the front end of the rocker arm 511 is provided with a rocker arm guide part 517, which can be a guide post, and the guide post is slidably disposed in the rocker arm guide rail 414. In order to facilitate the rocker arm locking part 512 to move toward or away from the fixed door hook locking part 211, the rear section of the rocker arm guide rail 414 is parallel to the outer slider guide rail 412, and the front end of the rocker arm guide rail 414 extends away from the fixed door hook 2, so that when the door is open, the rocker arm locking part 512 can have space to move away from the fixed door hook locking part 211.

[0076] In this embodiment, at least two rocker arms 511 are distributed around the fixed door hook 2, and the fixed door hook 2 is provided with a fixed door hook locking part 211 that cooperates with the rocker arm locking part 512 of each rocker arm 511. As a specific implementation, preferably two rocker arms 511 are located on the upper and lower sides of the fixed door hook 2, respectively, and both the upper and lower sides of the fixed door hook 2 are provided with fixed door hook locking parts 211. When closing the door, the rocker arm locking parts 512 of the two rocker arms 511 move towards the fixed door hook 2 from the upper and lower sides respectively, and lock with the fixed door hook locking parts 211 on the upper and lower sides of the fixed door hook 2, so that the fixed door hook 2 is clamped between the two rocker arms 511.

[0077] In this embodiment, as Figures 5 to 7 As shown, the unlocking component may include an inner slider 6 disposed between the rocker arms 511 and located outside the outer slider 5, and a second elastic member 7 disposed between the inner slider 6 and the outer slider 5. The cooker body 4 is provided with an inner slider guide rail 413, and the inner slider 6 is slidably disposed on the inner slider guide rail 413. Specifically, the inner slider 6 is provided with an inner slider guide part 612, which may be a guide block, and the guide block is slidably disposed on the inner slider guide rail 413. The front end of the rocker arm 511 and the side away from the locking part of the fixed door hook 2 is provided with a hook-shaped part 513, and the cooker body 4 is provided with a rocker arm abutment part 415 that cooperates with the hook-shaped part 513.

[0078] like Figures 12 to 15 As shown, when the door is opened, the fixed door hook 2 moves forward and drives the outer slider 5 to move from the closed position to the open position. The inner slider 6 slides forward under the action of the second elastic member 7 and drives the rocker arm locking part 512 to release from the fixed door hook locking part 211 and causes the hook-shaped part 513 to be attached to the rocker arm attachment part 415.

[0079] like Figures 9 to 12As shown, when the door is closed, the fixed door hook 2 moves rearward and drives the inner slider 6 to slide rearward, compressing the second elastic member 7. The inner slider 6 releases the restriction on the rocker arm locking part 512 in the unlocked state, and the rocker arm locking part 512 moves closer to the fixed door hook locking part 211 and locks with it. The hook-shaped part 513 disengages from the rocker arm abutment part 415. The rocker arm abutment part 415 can be stepped in shape, and when the door is open, the hook-shaped part 513 abuts against the front side of the step.

[0080] Among them, the rear end of the fixed door hook 2 is the fixed door hook drive unit 212. When the door is closed, the fixed door hook drive unit 212 drives the inner slider 6 to slide backward by abutting against the front end of the inner slider 6.

[0081] The second elastic element 7 can be a spring, and spring mounting parts are provided on the rear side of the inner slider 6 and the front side of the outer slider 5.

[0082] like Figure 3 and Figure 7 As shown, in one specific embodiment of the inner slider 6, both the upper and lower sides of the inner slider 6 are provided with inner slider driving parts 611 for driving the rocker arm locking part 512 to move away from the fixed door hook locking part 211 when the door is open. The inner slider driving part 611 can be an arc-shaped protrusion. The rocker arm 511 is provided with a groove 518 that cooperates with the inner slider driving part 611 when the door is closed. The groove 518 is used for the inner slider driving part 611 to slide into the groove 518 when the door is closed, thereby releasing the restriction on the rocker arm 511, so that the rocker arm 511 can move towards the fixed door hook 2 and lock with the fixed door hook 2 through elastic action.

[0083] like Figure 3 and Figure 5 As shown, based on any of the above solutions, a damper 12 is provided between the rear side of the outer slider 5 and the cooking appliance body 4. In one specific embodiment, the damper 12 is mounted on the cooking appliance body 4, and the movable end 1211 of the damper is fixedly connected to the outer slider 5. As a detachable fixed connection between the damper 12 and the outer slider 5, the movable end 1211 of the damper is provided with a cylindrical locking block, and the rear side of the outer slider 5 is provided with a locking groove 515 that mates with the cylindrical locking block, with the cylindrical locking block located within the locking groove 515. The fixed connection between the movable end 1211 of the damper and the outer slider 5 ensures that when the door is opened, the movable end 1211 of the damper returns to its original position as the outer slider 5 slides outward, ensuring that the damper 12 returns to its working state and facilitates its damping effect during the next door closing process.

[0084] like Figure 3 and Figure 6As shown, based on any of the above solutions, the outer slider 5 has a first limiting end 514 on its rear side, and the cooking appliance body 4 has a second limiting end 411. When the outer slider 5 is in the closed position, the first limiting end 514 abuts against the second limiting end 411, keeping the outer slider 5 in the closed position. The first limiting end 514 abuts against the second limiting end 411, preventing the outer slider 5 from sliding further towards the closed position when the first elastic member 8 drives it to do so, thus restricting the outer slider 5 to the closed position.

[0085] Based on any of the above solutions, the door closing assembly further includes at least one microswitch disposed on the cooker body 4. A switch drive unit for triggering the microswitch is provided on the rear side of the outer slider 5. When the outer slider 5 is in the closed position, the switch drive unit triggers the microswitch. There can be two microswitches located on the rear side of the outer slider 5, namely a first microswitch 9 and a second microswitch 10. The first microswitch 9 is located above and in front of the second microswitch 10. A first switch drive unit 520 that triggers the first microswitch 9 and a second switch drive unit 521 that triggers the second microswitch 10 are respectively provided on the rear side of the outer slider 5. Figure 12 As shown, when the door is closed, when the first elastic element 8 drives the outer slider 5 to slide to the closed position, the first switch drive unit 520 triggers the first micro switch 9, and at the same time the second switch drive unit 521 triggers the second micro switch 10, thus powering on the cooking appliance; as Figure 13 As shown, when the door is opened, the door body 1 is pulled by hand and the outer slider 5 is driven to slide outward through the fixed door hook 2. At this time, the switch drive unit disengages from the micro switch, so that the power is cut off when the door is opened.

[0086] like Figure 1 , Figure 4 and Figure 6 As shown, based on any of the above solutions, the door body 1 is also provided with a movable door hook 3 located on the upper side of the fixed door hook 2. The movable door hook 3 is slidably disposed on the door body 1 and a door hook spring 311 is provided between the movable door hook 3 and the door body 1 to pull down the movable door hook 3. Specifically, a door hook spring hook 111 is provided on the door body 1, and a movable door hook hook 315 is provided on the movable door hook 3. The two ends of the door hook spring 311 are respectively attached to the door hook spring hook 111 and the movable door hook hook 315. The movable door hook 3 is slidably disposed in the fixed door hook 2 through a movable door hook guide rail 314 integrally formed with it. The fixed door hook 2 is provided with a guide groove for the movable door hook guide rail 314 to slide up and down. The fixed door hook 2 is fixedly disposed on the door body 1 by screws 213.

[0087] The cooking appliance body 4 is provided with a movable door hook 3 attachment part that corresponds to the movable door hook 3 when the door is closed. When the outer slider 5 is in the closed position, the movable door hook 3 is attached to the movable door hook 3 attachment part.

[0088] As a specific embodiment, the rear end of the movable door hook 3 is provided with a downwardly bent hook portion 312, and the lower end of the hook portion 312 is provided with a switch driving portion; the switch driving portion is a third switch driving portion 313;

[0089] The movable door hook 3 includes a clearance hole 116, a front guide slope 117 located in front of the clearance hole 116 and inclined upward from the front to the rear, and a rear guide slope 118 located in front of and behind the clearance hole 116 and inclined downward from the front to the rear. A micro switch is provided on the rear side of the rear guide slope 118, and the micro switch is a third micro switch 11.

[0090] like Figure 12 As shown, when the door is in the closed position, the hook portion 312 at the rear end of the movable door hook 3 is located behind the clearance hole 116, and the front end of the movable door hook 3 is located in front of the clearance hole 116. The switch drive unit triggers the micro switch. Figures 9 to 11 As shown, during the closing process, the hook portion 312 of the movable door hook 3 slides upward along the front guide slope 117, and then slides downward along the rear guide slope 118 through the clearance hole 116 to the position of triggering the third micro switch 11. The door hook spring 311 always provides a downward pulling force to keep the movable door hook 3 triggering the third micro switch 11 and ensure power supply.

[0091] Working principle explanation:

[0092] like Figure 8 As shown, door 1 is in the open position.

[0093] like Figure 9 As shown, when closing the door, the user only needs to apply a small force to the door 1 to move the fixed door hook 2 toward the cooker body 4. After the rear end of the fixed door hook 2 contacts the front end of the inner slider 6, it will drive the inner slider 6 to move backward and compress the second elastic member 7. When the inner slider drive part 611 on the inner slider 6 slides into the groove 518, the inner slider 6 releases the restriction on the rocker arm 511 in the unlocked state, so that the rocker arm 511 has a reset space to move toward the fixed door hook 2.

[0094] like Figure 10As shown, after the rocker arm 511 is released from its restraints, its own elasticity causes the rocker arm locking part 512 to move closer to and lock with the fixed door hook locking part 211. Simultaneously, the hook-shaped part 513 on the rocker arm 511 disengages from and attaches to the rocker arm attachment part 415, causing the entire assembly of the door body 1, fixed door hook 2, outer slider 5, inner slider 6, and rocker arm 511 to have a tendency to slide in the closing direction. Under the action of the first elastic element 8, this assembly slides in the closing direction, as shown... Figure 11 As shown, during the sliding process, the damper 12 plays a damping role, providing the outer slider 5 with a force opposite to that of the first elastic element 8, thereby slowing down the closing speed of the door 1.

[0095] During the closing process, the hook portion 312 at the rear end of the movable door hook 3 slides upward along the front guide slope 117, and after passing through the clearance hole 116, slides downward along the rear guide slope 118. During this process, the door hook tension spring 311 always provides a downward pulling force, causing the hook portion 312 to abut against the front guide slope 117 or the rear guide slope 118.

[0096] like Figure 12 As shown, when the outer slider 5 slides to the closed position, the door 1 is completely closed. At this time, the first switch drive unit 520 triggers the first micro switch 9, the second switch drive unit 521 triggers the second micro switch 10, and the third switch drive unit 313 triggers the third micro switch 11, thereby realizing the power supply for closing the door.

[0097] like Figure 13 As shown, when opening the door, the door body 1 needs to be pulled by hand to move it in the opening direction. At this time, the first switch drive unit 520 disengages from the first micro switch 9, the second switch drive unit 521 disengages from the second micro switch 10, and the third switch drive unit 313 disengages from the third micro switch 11, and the cooker is powered off.

[0098] like Figure 14 As shown, during the continued pulling of door 1 in the opening direction, due to the restriction of the rocker arm guide rail 414, the rocker arm locking part 512 remains locked to the fixed door hook locking part 211. Figure 15 As shown, when the door reaches the open position, the rocker arm 511 has space to swing away from the fixed door hook 2. At this time, the second elastic element 7 resets and drives the inner slider 6 to slide forward. During the sliding process, the inner slider 6 drives the rocker arm 511 to swing away from the fixed door hook 2, and releases the rocker arm locking part 512 from the fixed door hook locking part 211. After the lock is released, the door 1 can be opened smoothly. At this time, as Figure 8 As shown, the hook-shaped part 513 located at the front end of the rocker arm 511 is attached to the rocker arm attachment part 415, so that the outer slider 5 is restricted to the door opening position.

[0099] This invention is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this invention are within the protection scope of this invention.

Claims

1. A cooking appliance equipped with an automatic door closing device, characterized in that, include: The door is equipped with a fixed door hook; The cooking appliance body is equipped with an external slider guide rail; and, A door closing assembly is disposed on the cooker body. The door closing assembly includes an outer slider that is slidably disposed on the outer slider guide rail and a first elastic member disposed between the rear side of the outer slider and the cooker body and in a stretched state. The outer slider includes an open position when the door is open and a closed position when the door is closed. The front side of the outer slider is provided with a locking component for locking with the fixed door hook when the door is closed and an unlocking component for releasing the locking component from locking the fixed door hook when the door is open. When the outer slider is in the open position, the unlocking component releases the locking component from locking the fixed door hook and restricts the locking component to the unlocked state. When the locking component is in the unlocked state, the locking component restricts the outer slider to the open position under the action of the unlocking component. When the outer slider is in the closed position, the locking component locks the fixed door hook and is in the locked state. When the door is closed, the fixed door hook moves to the rear and drives the unlocking component to move to the rear. The unlocking component releases the restriction on the locking component in the unlocked state. The locking component switches from the unlocked state to the locked state locked with the fixed door hook and releases the restriction on the outer slider in the open position. The first elastic element drives the outer slider to the closed position under the action of elastic reset. When the door is opened, the fixed door hook moves forward and drives the outer slider to move from the closed position to the open position. The unlocking component moves forward and drives the locking component to switch from the locked state to the unlocked state. Under the action of the unlocking component, the locking component restricts the outer slider to the open position. The locking assembly includes a rocker arm that is elastic and disposed at the front end of the outer slider. The front end of the rocker arm is provided with a rocker arm locking part, and the fixed door hook is provided with a fixed door hook locking part. The rocker arm locking part locks with the fixed door hook locking part by moving closer to the fixed door hook locking part, and unlocks from the fixed door hook locking part by moving away from the fixed door hook locking part. The rocker arms are at least two in number and distributed around the fixed door hook, and the fixed door hook is provided with a fixed door hook locking part that cooperates with the rocker arm locking part of each rocker arm; The unlocking component includes an inner slider disposed between the rocker arms and located outside the outer slider, and a second elastic element disposed between the inner slider and the outer slider. The cooker body is provided with an inner slider guide rail, and the inner slider is slidably disposed on the inner slider guide rail. The front end of the rocker arm and the side away from the fixed door hook locking part is provided with a hook-shaped part, and the cooker body is provided with a rocker arm hanging part that cooperates with the hook-shaped part. When the door is opened, the fixed door hook moves forward and drives the outer slider to move from the closed position to the open position. The inner slider slides forward under the action of the second elastic element and drives the rocker arm locking part to release from the fixed door hook locking part and causes the hook-shaped part to abut against the rocker arm abutment part. When the door is closed, the fixed door hook moves backward and drives the inner slider to slide backward and compress the second elastic element. The inner slider releases the restriction on the rocker arm locking part in the unlocked state. The rocker arm locking part moves closer to the fixed door hook locking part and locks with the fixed door hook locking part. The hook-shaped part disengages from the rocker arm hook part.

2. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, The cooker body is provided with a rocker arm guide rail, and the rocker arm is slidably mounted on the rocker arm guide rail.

3. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, Both the upper and lower sides of the inner slider are provided with inner slider driving parts for driving the rocker arm locking part to move away from the fixed door hook locking part when the door is open. The rocker arm is provided with a groove that cooperates with the inner slider driving part when the door is closed. The second elastic element is a spring.

4. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, A damper is provided between the rear side of the outer slider and the cooking appliance body.

5. A cooker equipped with an automatic door closing device according to claim 4, characterized in that, The damper is mounted on the cooker body and its movable end is fixedly connected to the outer slider.

6. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, The outer slider is provided with a first limiting end on its rear side, and the cooker body is provided with a second limiting end. When the outer slider is in the closed position, the first limiting end abuts against the second limiting end to keep the outer slider in the closed position.

7. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, The door closing assembly also includes at least one micro switch disposed on the cooker body. A switch driving part for triggering the micro switch is provided on the rear side of the outer slider. When the outer slider is in the closed position, the switch driving part triggers the micro switch.

8. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, The first elastic element is an outer slider tension spring, and the two ends of the outer slider tension spring are respectively connected to the outer slider and the cooking appliance body.

9. A cooker equipped with an automatic door closing device according to claim 1, characterized in that, The door body is also provided with a movable door hook located on the upper side of the fixed door hook. The movable door hook is slidably disposed on the door body and a door hook tension spring is provided between the movable door hook and the door body to pull down the movable door hook. The cooker body is provided with a movable door hook attachment part that corresponds to the movable door hook when the door is closed. When the outer slider is in the closed position, the movable door hook is attached to the movable door hook attachment part.

10. A cooker equipped with an automatic door closing device according to claim 9, characterized in that, The rear end of the movable door hook is provided with a downwardly bent hook portion, and the lower end of the hook portion is provided with a switch drive portion; The movable door hook abutment includes a clearance hole, a front guide slope located in front of the clearance hole and inclined upward from the front to the rear, and a rear guide slope located in front of and behind the clearance hole and inclined downward from the front to the rear. A micro switch is provided on the rear side of the rear guide slope. When the door is in the closed position, the hook portion at the rear end of the movable door hook is located behind the clearance hole, and the front end of the movable door hook is located in front of the clearance hole, and the switch drive unit triggers the micro switch.

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