Door lock device and cooking electric appliance

Abstract

The utility model discloses a door lock device and a cooking electric appliance, the door lock device comprises a support, a first clamping piece, a second clamping piece and a locking assembly, and the support is used for being installed at an opening of a cavity and is provided with a limiting part; the first clamping piece is used for being fixed to the door body and comprises a first clamping hook, and the first clamping hook is suitable for keeping the door body closed; the second clamping piece is movably mounted on the door body and comprises a second clamping hook, and the second clamping hook is suitable for being clamped with the limiting part when the door body is closed; under the condition that the second clamping hook is locked, the second clamping piece is kept fixed relative to the door body, and under the condition that the second clamping hook is unlocked, the second clamping piece can move relative to the door body. Thus, under the condition that the second clamping hook is locked by the locking assembly, the second clamping piece is kept fixed relative to the door body, namely, the second clamping piece cannot move relative to the door body, so that the door body is difficult to rotate relative to the cavity, and the difficulty of opening the door body when the door body is closed is increased.

Description

Technical Field

[0001] The present application relates to the technical field of cooking appliances, and particularly relates to a door lock device and a cooking appliance. Background Art

[0002] The door opening methods of cooking appliances include button type, pull door type, and touch type. The oven door can be opened without external force or with only a very small external force. The overall operation is simple and convenient and only requires one-step action, enabling children to easily open the door. This poses a safety hazard that children may open the door by themselves during the use of the cooking appliance and be scalded by high-temperature items. Summary of the Utility Model

[0003] The present application provides a door lock device and a cooking appliance, which are at least used to solve the problem that the door opening method of the cooking appliance is too simple and the door is easy to be opened.

[0004] On the one hand, the present application provides a door lock device. The door lock device includes a bracket, a first clamping member, a second clamping member, a locking assembly, and a limiting member. The bracket is used to be installed at the opening of the cavity and is provided with a limiting portion; the limiting member is arranged on the bracket. The first clamping member is used to be fixed to the door body. The first clamping member includes a first hook. The door body is rotatably connected to the cavity to open or close the opening of the cavity. The first hook can be engaged with the limiting member when the door body is closed; the second clamping member is used to be movably installed on the door body. During the opening or closing process of the door body, the second clamping member can move relative to the door body. The second clamping member includes a second hook. The second hook is adapted to be engaged with the limiting portion when the door body is closed; the locking assembly is installed on the bracket. The locking assembly is used to lock or unlock the second hook when the door body is closed. When the second hook is locked, the second clamping member remains fixed relative to the door body. When the second hook is unlocked, the second clamping member can move relative to the door body.

[0005] In some embodiments, the locking assembly includes:

[0006] A locking member, which is rotatably arranged on the bracket and can move between a locking position and an unlocking position. When the locking member is in the locking position, the locking member locks the second hook. When the locking member is in the unlocking position, the locking member unlocks the second hook;

[0007] A driving component, which is arranged on the bracket. The driving component is used to drive the locking member to rotate from the unlocking position to the locking position.

[0008] In some embodiments, the locking member includes a rotating portion, an abutting portion, and a pushing portion. The rotating portion is rotatably disposed on the bracket. The abutting portion and the pushing portion are arranged at intervals along the circumferential direction of the rotating portion. When the abutting portion abuts against the second hook, the second hook is locked, and the driving component drives the locking member to rotate through the pushing portion.

[0009] In some embodiments, the driving component includes an electromagnetic portion and a push rod. The push rod is disposed through the electromagnetic portion, and the electromagnetic portion is configured to drive the push rod to move so that the push rod abuts against and drives the locking member to rotate from the unlocking position to the locking position.

[0010] In some embodiments, the driving component further includes a first elastic member. The first elastic member connects the electromagnetic portion and the push rod, and the first elastic member applies a restoring elastic force to the push rod when the locking member is in the locking position.

[0011] In some embodiments, the locking assembly further includes a second elastic member. The second elastic member connects the bracket and the locking member, and the second elastic member applies a restoring elastic force to the locking member when the locking member is in the locking position, so that the locking member rotates from the locking position to the unlocking position.

[0012] In some embodiments, the limiting member is rotatably mounted on the bracket. The door locking device further includes a third elastic member. The third elastic member connects the bracket and the limiting member, and the third elastic member can drive the limiting member to rotate when the limiting member is engaged with the first hook, so as to drive the door body to close through the first engaging member.

[0013] In some embodiments, the third elastic member includes a torsion spring. A first end of the torsion spring is connected to the bracket, and a second end of the torsion spring is connected to the limiting member;

[0014] When the second end of the torsion spring is located on a first side of the line connecting the rotation center of the limiting member and the first end of the torsion spring, the torsion spring applies a thrust force to the limiting member to rotate towards the first side;

[0015] When the second end of the torsion spring is located on a second side of the line connecting the rotation center of the limiting member and the first end of the torsion spring, the torsion spring applies a thrust force to the limiting member to rotate towards the second side, and the first side and the second side are respectively located on opposite sides of the line.

[0016] In some embodiments, the door lock device further includes a buffer member, which connects the limiting member and the bracket, and the buffer member is used to slow down the rotation speed of the limiting member during the closing process of the door body, thereby slowing down the closing speed of the door body.

[0017] Another aspect of the present application provides a cooking appliance. The cooking appliance comprises a door body, a cavity and a door lock device according to any of the above embodiments. The bracket is installed at the opening of the cavity, and the first clamp and the second clamp are arranged on the door body.

[0018] In the door lock device and cooking appliance of the embodiments of the present application, when the locking assembly locks the second hook, the second clamping member remains fixed relative to the door body, that is, the second clamping member does not move relative to the door body, making it difficult for the door body to rotate relative to the cavity, increasing the difficulty of opening the door body when it is closed; in addition, the first clamping member is fixed to the door body, and the second clamping member moves relative to the door body, so that the first clamping member and the second clamping member will not be linked, and the structure is simple, making it easier for the door lock device to achieve the child lock function.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a cooking appliance according to certain embodiments of the present application;

[0022] Figure 2 is a partial three-dimensional structural schematic diagram of a cooking appliance according to certain embodiments of the present application;

[0023] Figure 3 is a partial structural schematic diagram of a cooking appliance according to some embodiments of the present application;

[0024] Figure 4 is a perspective exploded schematic diagram of a door lock device according to certain embodiments of the present application;

[0025] Figure 5 is a three-dimensional schematic diagram of a locking member in a door lock device according to certain embodiments of the present application;

[0026] Figure 6 is a schematic diagram of the structure of a driving component in a door lock device of certain embodiments of the present application;

[0027] Figure 7 is a schematic diagram of the state of a door lock device in some embodiments of the present application;

[0028] Figure 8 is another schematic diagram of the door lock device according to some embodiments of the present application;

[0029] Figure 9 is another schematic diagram of the door lock device according to some embodiments of the present application;

[0030] Figure 10 is another schematic diagram of the door lock device according to some embodiments of the present application;

[0031] Figure 11 is another schematic diagram of the door lock device according to some embodiments of the present application;

[0032] Figure 12 is another schematic diagram of the door lock device according to some embodiments of the present application.

[0033] Description of reference numerals:

[0034] 200, cooking appliance; 210, cavity; 220, door body; 230, control box; 240, power switch; 100, door lock device; 10, bracket; 11, limiting part; 12, pivot shaft; 20, first clamping member; 21, first mounting part; 22, first hook; 30, second clamping member; 31, second mounting part; 32, second hook; 40, locking assembly; 41, locking piece; 411, pivot hole; 412, rotating part; 413, abutting part; 414, pushing part; 42, driving component; 421, electromagnetic part; 422, push rod; 423, first elastic member; 43, second elastic member; 50, reset elastic member; 60, limiting member; 61, rotating part; 62, connecting part; 621, clamping groove; 70, third elastic member; 71, torsion spring; 72, connecting wire; 80, buffer member; 90, micro switch. Detailed description of the specific embodiments

[0035] The following describes in detail the embodiments of the present application. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present application and should not be construed as limiting the embodiments of the present application.

[0036] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application 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. Therefore, it should not be construed as a limitation on the embodiments of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0037] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection or a connection that can communicate with each other; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0038] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0039] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. To simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. The embodiments of the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the embodiments of the present application provide examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0040] Please refer to Figure 1 and Figure 2 , an embodiment of the present application discloses a cooking appliance 200, which includes but is not limited to a microwave oven, a steam oven, an electric oven, etc. The cooking appliance 200 includes a cavity 210, a door body 220, and a door lock device 100. The cavity 210 is formed with an opening, and the door body 220 is rotatably connected to the cavity 210 to open or close the opening of the cavity 210. For example, the door body 220 can be rotatably connected to the cavity 210 through a hinge. The door lock device 100 connects the cavity 210 and the door body 220 and is used to realize the opening and closing of the door body 220 relative to the cavity 210.

[0041] Please refer to Figures 2 - 4 , in some embodiments, the door lock device 100 includes a bracket 10, a first clamping member 20, a second clamping member 30, a locking assembly 40, and a limiting member 60. The bracket 10 is used to be installed at the opening of the cavity 210 and is provided with a limiting portion 11; the limiting member 60 is arranged on the bracket 10. The first clamping member 20 is used to be fixed to the door body 220. The first clamping member 20 includes a first hook 22, and the first hook 22 can be engaged with the limiting member 60 when the door body 220 is closed; the second clamping member 30 is used to be movably installed on the door body 220. During the opening or closing process of the door body 220, the second clamping member 30 can move relative to the door body 220. The second clamping member 30 includes a second hook 32, and the second hook 32 is adapted to be engaged with the limiting portion 11 when the door body 220 is closed; the locking assembly 40 is installed on the bracket 10. The locking assembly 40 is used to lock or unlock the second hook 32 when the door body 220 is closed. When the second hook 32 is locked, the second clamping member 30 remains fixed relative to the door body 220. When the second hook 32 is unlocked, the second clamping member 30 can move relative to the door body 220.

[0042] In this way, when the locking assembly 40 locks the second hook 32, the second clamping member 30 remains fixed relative to the door body 220, that is, the second clamping member 30 will not move relative to the door body 220, making it difficult for the door body 220 to rotate relative to the cavity 210, increasing the difficulty of opening the door body 220 when it is closed; in addition, the first clamping member 20 is fixed to the door body 220, and the second clamping member 30 moves relative to the door body 220, so that the first clamping member 20 and the second clamping member 30 will not be linked, and the child lock function can be realized by moving the second clamping member 30. The structure is simple, making it easier for the door lock device 100 to realize the child lock function.

[0043] Specifically, the bracket 10 is a carrier of components such as the locking assembly 40, and the bracket 10 can be installed on the cavity 210 by fasteners such as screws. In order to meet the requirements of the installation position, structure, etc. of different components, the bracket 10 is generally designed to be irregular. The limiting portion 11 of the bracket 10 can be a sheet-like structure, and the limiting portion 11 extends upward from one end close to the door body 220 and forms an inclined surface, which allows the second hook 32 to move up and down along the surface of the limiting portion 11. During the closing process of the door body 220, the second hook 32 moves upward along the limiting portion 11. After the second hook 32 passes the highest point of the limiting portion 11, the second hook 32 falls and engages with the limiting portion 11.

[0044] It should be pointed out that in the embodiment of the present application, the upward direction refers to the direction in which the horizontal plane of the cooking appliance 200 is facing upward when the cooking appliance 200 is in normal use, and the downward direction refers to the direction in which the horizontal plane is facing downward.

[0045] like Figure 4 As shown, the first clamping member 20 may include a first mounting portion 21 and a first hook 22. The first hook 22 and the first mounting portion 21 may be an integral structure. The first mounting portion 21 may be mounted on the door body 220 by welding, threaded connection, snap-fitting, etc., so that the first clamping member 20 is fixed to the door body 220. When the door body 220 is closed, the first hook 22 may move toward the inside of the bracket 10 and extend into the bracket 10. When the door body 220 is opened, the first hook 22 may move out of the bracket 10 and separate from the bracket 10.

[0046] The second clamping member 30 may include a second mounting portion 31 and a second hook 32. The second hook 32 and the second mounting portion 31 may be an integral structure. The second mounting portion 31 may be movably mounted on the door body 220 by means of snap-fitting or the like, so that the second clamping member 30 may move relative to the door body 220. For example, a slide groove may be provided on the door body 220, and the slide groove extends along the height direction of the cooking appliance 200. The second mounting portion 31 may be provided with a slider that cooperates with the slide groove, and the slider is stuck in the slide groove. When the slider moves along the slide groove, the second clamping member 30 moves up and down relative to the door body 220.

[0047] It should be noted that the second clamping member 30 moves relative to the door body 220 as the door body 220 is opened and closed. Or rather, after restricting the movement of the second clamping member 30, the door body 220 cannot be opened or closed. Therefore, after the second clamping member 30 is engaged with the limiting portion 11, the locking assembly 40 is used to restrict the movement of the second clamping member 30 relative to the door body 220, so that the door body 220 cannot be opened, thereby increasing the complexity of opening the door body 220 and improving the safety of using the cooking appliance 200.

[0048] In the embodiment of the present application, the opening of the cavity 210 refers to the area around the cavity 210, and the opening of the cavity 210 is used to place food into or remove food from the cavity 210.

[0049] Please continue to refer to Figure 3 and Figure 4 In some embodiments, the locking assembly 40 includes a locking member 41 and a driving member 42. The locking member 41 is rotatably arranged on the bracket 10 and can move between a locking position and an unlocking position. When the locking member 41 is in the locking position, the locking member 41 locks the second hook 32. When the locking member 41 is in the unlocking position, the locking member 41 unlocks the second hook 32; the driving member 42 is arranged on the bracket 10, and the driving member 42 is used to drive the locking member 41 to rotate from the unlocking position to the locking position.

[0050] In this way, the driving member 42 drives the locking member 41 to rotate from the unlocking position to the locking position, so that the locking member 41 locks the second hook 32 in the locking position, thereby making it difficult for the second clamping member 30 to move relative to the door body 220, making it difficult for the door body 220 to open and keeping it in the closed state. The locking member 41 and the driving member 42 cooperate to make it easy to realize the function of the locking assembly 40 to lock the second clamping member 30. In addition, the locking member 41 is rotatably arranged on the bracket 10, so that the driving member 42 can be arranged on one side of the circumferential rotation of the locking member 41, and the driving member 42 can be flexibly arranged on the bracket 10 to make full use of the space of the bracket 10, thereby making the structure of the locking device more compact.

[0051] Specifically, please combine Figure 4 and Figure 5, Exemplarily, a pivot hole 411 may be provided on the locking member 41, and a pivot shaft 12 may be provided on the bracket 10. The locking member 41 may be sleeved on the pivot shaft 12 through the pivot hole 411, so as to be rotatably connected to the bracket 10. When at least a part of the locking member 41 is located within the movement space of the second hook 32, the locking member 41 stops the second hook 32, thereby locking the second hook 32. Similarly, when the locking member 41 unlocks the second hook 32, when the locking member 41 is outside the rotation space of the second hook 32, the locking member 41 does not restrict the movement of the second hook 32, and the second hook 32 can move relative to the door body 220, thereby unlocking the second hook 32.

[0052] The driving member 42 includes, but is not limited to, components such as electromagnetic components, pneumatic components, electro-deformable components, and elastic components. The driving member 42 can be installed on the bracket 10 through fasteners such as screws.

[0053] In the embodiment of the present application, the unlocking position of the locking member 41 is, for example, Figure 11 the position where it is located, and the locking position of the locking member 41 is, for example, Figure 12 the position where it is located.

[0054] Please refer to Figures 3 - 5 , In some embodiments, the locking member 41 includes a rotating portion 412, a resisting portion 413, and a pushing portion 414. The rotating portion 412 is rotatably provided on the bracket 10. The resisting portion 413 and the pushing portion 414 are arranged at intervals along the circumference of the rotating portion 412. When the resisting portion 413 abuts against the second hook 32, the second hook 32 is locked, and the driving member 42 drives the locking member 41 to rotate through the pushing portion 414.

[0055] In this way, the rotating portion 412, the resisting portion 413, and the pushing portion 414 cooperate with each other, so that the locking member 41 can lock or unlock the second hook 32. Specifically, the rotating portion 412 may be similar to a cylindrical shape, and the rotating portion 412 may be sleeved on the pivot shaft 12 of the bracket 10, so that the locking member 41 rotates relative to the bracket 10 through the rotating portion 412. The resisting portion 413 is similar to a sheet-like structure. One end of the resisting portion 413 is connected to the rotating portion 412, and the other end is used to abut against the second hook 32. The pushing portion 414 may be irregular. Under the action of the driving member 42, the pushing portion 414 causes the locking member 41 to form a torque, so that the locking member 41 can rotate.

[0056] In order to make the structure of the locking member 41 more stable and easy to manufacture, the locking member 41 may be an integral structure. For example, the locking member 41 may be a plastic part formed by an injection molding process.

[0057] It should be noted that the abutting portion 413 abutting against the second hook 32 may mean that the abutting portion 413 contacts the second hook 32. For example, the abutting portion 413 is located directly above the second hook 32 and contacts the second hook 32, or it may mean that there is a small gap between the abutting portion 413 and the second hook 32, and this gap is sufficient to limit the door body 220 from being pulled open after the second hook 32 moves a small displacement.

[0058] Please refer to Figure 3 、 Figure 4 and Figure 6 , in some embodiments, the driving component 42 includes an electromagnetic part 421 and a push rod 422. The push rod 422 is disposed in the electromagnetic part 421, and the electromagnetic part 421 is used to drive the push rod 422 to move, so that the push rod 422 abuts against and drives the locking member 41 to rotate from the unlocking position to the locking position.

[0059] In this way, the driving component 42 drives the push rod 422 to move in an electromagnetic manner, so that the locking member 41 rotates, and thus the rotation control of the locking member 41 is more easily achieved. For example, when the electromagnetic part 421 is powered on, the push rod 422 can move towards the locking member 41, thereby pushing the locking member 41 to rotate.

[0060] Specifically, the push rod 422 can be made of a magnetic material, or rather, the push rod 422 is a magnetic part. The magnetic part includes materials containing elements such as iron. The magnetic part can be a permanent magnetic part or a non-permanent magnetic part. After the electromagnetic part 421 is powered on, the electromagnetic part 421 generates a magnetic force, causing the electromagnetic part 421 to attract or repel the push rod 422, so that the push rod 422 moves. During the movement of the push rod 422, it abuts against the pushing portion 414, so that the locking member 41 rotates.

[0061] Please refer to Figure 3 、 Figure 4 and Figure 6, in some embodiments, the driving member 42 further includes a first elastic member 423. The first elastic member 423 connects the electromagnetic portion 421 and the push rod 422, and the first elastic member 423 applies a reset elastic force to the push rod 422 when the locking member 41 is in the locked position. Thus, the first elastic member 423 can reset the push rod 422 after the electromagnetic portion 421 drives the push rod 422 to move. In addition, the structure of the first elastic member 423 is simple and the cost is low, making it easier to realize the function of moving the push rod 422 away from the locking member 41. Exemplarily, the first elastic member 423 can be a cylindrical helical spring. The first elastic member 423 can be sleeved on the push rod 422. When the locking member 41 is in the locked position, the first elastic member 423 is in a compressed state. At this time, the first elastic member 423 can apply a thrust to the push rod 422, so that the push rod 422 is reset when the electromagnetic portion 421 does not drive the push rod 422. Of course, the first elastic member 423 can also be a torsion spring, a rubber elastic member or other components.

[0062] Please refer to Figure 4 and Figure 7 , in some embodiments, the locking assembly 40 further includes a second elastic member 43. The second elastic member 43 connects the bracket 10 and the locking member 41, and the second elastic member 43 applies a reset elastic force to the locking member 41 when the locking member 41 is in the locked position, so that the locking member 41 rotates from the locked position to the unlocked position.

[0063] Thus, the structure of the second elastic member 43 is simple and the cost is low, making it easier to realize the function of returning the locking member 41 to the unlocked position. Exemplarily, the second elastic member 43 can include, but is not limited to, components such as a cylindrical helical spring, a torsion spring, and a rubber elastic member.

[0064] Specifically, the second elastic member 43 can connect the bracket 10 and the pushing portion 414 of the locking member 41. In one example, please refer to Figure 3 , Figure 4 and Figure 7 , when the locking member 41 is in the unlocked position, after the electromagnetic portion 421 is powered on, the electromagnetic portion 421 drives the push rod 422 to move. The push rod 422 can move towards the locking member 41 and push the locking member 41 to rotate from the unlocked position to the locked position. At this time, the locking member 41 restricts the movement of the second clamping member 30.

[0065] After the electromagnetic portion 421 is powered off, the first elastic member 423 moves the push rod 422 in a direction away from the locking member 41, so that the push rod 422 is separated from the locking member 41. At the same time, the second elastic member 43 returns from the stretched state, thereby driving the locking member 41 to return from the locked position to the unlocked position. With the mutual cooperation of the electromagnetic portion 421, the push rod 422, the first elastic member 423 and the second elastic member 43, the locking member 41 can reciprocate between the unlocked position and the locked position.

[0066] Please refer to Figure 3 , Figure 4 and Figure 7 , in some embodiments, the door lock device 100 includes a reset elastic member 50. The reset elastic member 50 is connected to the bracket 10 and the second engaging member 30, and the reset elastic member 50 applies a downward reset force to the second engaging member 30.

[0067] Please refer to Figure 3 , Figure 4 and Figure 7 , in some embodiments, the limiting member 60 is rotatably mounted on the bracket 10.

[0068] Specifically, the limiting member 60 may include a rotating portion 61 and a connecting portion 62 connected to the rotating portion 61. The rotating portion 61 may be in a cylindrical shape and mounted on the bracket 10. The connecting portion 62 is in a fan-shaped structure. A card slot 621 is formed in the connecting portion 62. During the closing process of the door body 220, the first hook 22 can be inserted into the card slot 621, and after the door body 220 is closed, the first hook 22 remains engaged in the card slot 621.

[0069] Please refer to Figure 3 , Figure 4 and Figure 7 , in some embodiments, the door lock device 100 further includes a third elastic member 70. The third elastic member 70 is connected to the bracket 10 and the limiting member 60. When the limiting member 60 is engaged with the first hook 22, the third elastic member 70 can apply an elastic force to the limiting member 60 to rotate the limiting member 60, so as to drive the door body 220 to close through the first engaging member 20.

[0070] In this way, the third elastic member 70 can cause the door body 220 to automatically close when the limiting member 60 is engaged with the first hook 22. The closing process of the door body 220 is relatively labor-saving, improving the user experience.

[0071] Please refer to Figures 7 - 9 , in some embodiments, the third elastic member 70 includes a torsion spring 71. The torsion spring 71 has a first end 711 connected to the bracket 10 and a second end 712 connected to the limiting member 60. When the second end 712 of the torsion spring 71 is located on the first side of the line connecting the rotation center of the limiting member 60 and the first end 711 of the torsion spring 71, the torsion spring 71 applies a thrust force to the limiting member 60 to rotate towards the first side;

[0072] When the second end 712 of the torsion spring 71 is located on the second side of the line 72 connecting the rotation center of the limiting member 60 and the first end 711 of the torsion spring 71, the torsion spring 71 applies a thrust force to the limiting member 60 to rotate towards the second side. The first side and the second side are respectively located on the opposite sides of the line 72.

[0073] Thus, the torsion spring 71 stores energy during the opening process of the door body 220, and after the door body 220 is opened, enables the limiting member 60 to maintain a tendency to rotate in the first direction (such as the clockwise direction in Figure 7 ), so that the limiting member 60 abuts against the bracket 10; the torsion spring 71 can release the stored energy during the closing process of the door body 220 and enable the limiting member 60 to rotate in the second direction (such as the counterclockwise direction in Figure 7 ), so as to drive the door body 220 to close through the second engaging member 30, and the first direction is opposite to the second direction.

[0074] Driving the limiting member 60 to rotate through the torsion spring 71 makes the structure of the third elastic member 70 simple and easy to implement, and the cost of the torsion spring 71 is relatively low, so that the cost of the third elastic member 70 can be reduced.

[0075] As Figure 8 shown, during the opening process of the door body 220, the first hook 22 engages with the limiting member 60, and the first hook 22 can drive the limiting member 60 to rotate. At this time, the torsion spring 71 stores energy. After the door body 220 is opened and the first hook 22 is disengaged from the limiting member 60, the second end 712 of the torsion spring 71 is located on the side of the connecting line 72 close to the door body 220, so that the torsion spring 71 applies a rotational force in the first direction to the limiting member 60, and this force makes the limiting member 60 abut against the bracket 10, so that the limiting member 60 remains in a stationary state.

[0076] As Figure 9 shown, during the closing process of the door body 220, the first hook 22 extends into the bracket 10 and engages with the limiting member 60. As the first hook 22 moves, the first hook 22 drives the limiting member 60 to rotate. After the limiting member 60 rotates through a predetermined angle in the second direction, the second end 712 of the torsion spring 71 is located on the side of the connecting line 72 away from the door body 220, and the torsion spring 71 releases the stored energy and enables the limiting member 60 to rotate in the second direction, so that the limiting member 60 pulls the first hook 22 to drive the door body 220 to rotate until it is completely closed.

[0077] It should be noted that the first direction of rotation of the limiting member 60 is the direction in which the limiting member 60 rotates during the process of the door body 220 switching from the closed state to the open state, such as the counterclockwise direction shown in Figure 7 . It can be understood that in other embodiments, the third elastic member 70 can be a tension spring, an electromagnetic drive component, or other components.

[0078] Please refer to Figure 3 、 Figure 4 and Figure 7 , in some embodiments, the door lock device 100 further includes a buffer member 80. The buffer member 80 is connected between the limiting member 60 and the bracket 10, and the buffer member 80 is used to slow down the rotation speed of the limiting member 60 during the closing process of the door body 220, so as to slow down the closing speed of the door body 220.

[0079] In this way, the buffer member 80 slows down the closing speed of the door body 220, which can reduce the collision between the door body 220 and the cavity 210 and lower the noise. The buffer member 80 includes, but is not limited to, a spiral spring, a damper, etc. It can be understood that the buffer member 80 can provide a resistance to hinder the movement of the first hook 22, but the power provided by the third elastic member 70 is greater than the resistance of the buffer member 80, so that during the process of the first hook 22 cooperating with the limiting member 60 to drive the door body 220 to move, only the movement speed of the door body 220 will be slowed down, and the movement direction of the door body 220 will not be changed.

[0080] In some embodiments, the buffer member 80 can be a one-way damper. The one-way damper can include two relatively rotating parts. One part of the one-way damper can be connected to the limiting member 60 and the other part is connected to the bracket 10. When the door body 220 is closing, the one-way damper can slow down the closing speed of the door body 220, and when the door body 220 is opening, the one-way damper does not provide damping and does not hinder the opening of the door body 220. Thus, when the door body 220 is closing, the collision between the door body 220 and the cavity 210 can be reduced and the noise can be decreased; conversely, when the door body 220 is opening, the buffer member 80 does not slow down the opening speed of the door body 220, which is more labor-saving and improves the user experience.

[0081] Please refer to again Figure 4 , in some embodiments, the door lock device 100 can further include a micro switch 90 disposed on the bracket 10. When the micro switch 90 is triggered, it can confirm that the door body 220 is in the closed state.

[0082] Please refer to again Figures 1 - 3 , in some embodiments, the cooking appliance 200 further includes a control box 230 and a power switch 240. The control box 230 is disposed on the door body 220 or the cavity 210 and is electrically connected to the locking assembly 40. The power switch 240 is disposed on the control box 230. Among them, the power switch 240 can be a touch button or a mechanical button. The power switch 240 is used to trigger an instruction, and the control box 230 can control the energization state of the locking assembly 40 according to the unlocking instruction, so that the locking assembly 40 locks or unlocks the second hook 32.

[0083] In summary, in an embodiment of the present application, the process of closing the door of the cooking appliance 200 is as follows:

[0084] Please refer to in combination with Figures 7 - 12, a thrust is applied to the door body 220, and the door body 220 moves into the bracket 10. The first hook 22 pushes the limiting member 60 to rotate, and the second hook 32 moves upward along the limiting portion 11. After the limiting member 60 rotates a predetermined angle along the second direction, the second end 712 of the torsion spring 71 is located on the side of the connecting line 72 away from the door body 220. The torsion spring 71 releases the stored energy and drives the limiting member 60 to rotate along the second direction, so that the limiting member 60 pulls the first hook 22 to drive the door body 220 to continue closing, and the buffer member 80 can slow down the closing speed of the door body 220.

[0085] When the second hook 32 moves past the highest end of the limiting portion 11, the second hook 32 moves downward under the action of the return elastic member 50 and engages with the limiting portion 11. At this time, the door body 220 is in the closed state. Further, after the door body 220 is closed, the electromagnetic portion 421 is energized, and the electromagnetic portion 421 generates a magnetic force, so that the electromagnetic portion 421 attracts or repels the push rod 422, thereby causing the push rod 422 to move. During the movement of the push rod 422, it abuts against the pushing portion 414, so that the locking member 41 rotates from the unlocked position to the locked position to lock the second hook 32, reducing the risk of the door body 220 being directly opened by pulling, and ensuring the opening safety of the cooking appliance 200. During the process of the electromagnetic portion 421 driving the push rod 422 and the locking member 41 to move, the first elastic member 423 and the second elastic member 43 store energy.

[0086] It can be understood that the opening process of the cooking appliance 200 is opposite to the closing process, which is specifically as follows:

[0087] Please refer to Figures 7 - 12 , after the cooking appliance 200 finishes working, if it is not operated, the electromagnetic portion 421 can remain energized for a preset duration (for example, 30 minutes). During this process, the locking member 41 continuously locks the second hook 32. If the power-on key 240 is pressed, the power-on key 240 sends an instruction to the control box 230. After the control box 230 receives the unlocking instruction, it cuts off the power supply of the electromagnetic portion 421. At this time, the electromagnetic portion 421 has no acting force on the push rod 422. The push rod 422 moves away from the locking member 41 under the action of the first elastic member 423. In addition, the locking member 41 moves from the locked position to the unlocked position under the action of the second elastic member 43, so that the second hook 32 is unlocked.

[0088] After the second hook 32 is unlocked, the door body 220 is pulled, and the first hook 22 drives the limiting member 60 to rotate. During this process, the torsion spring 71 stores energy. The second hook 32 moves upward and passes over the highest end of the limiting portion 11 and then disengages from the limiting portion 11, and moves downward under the action of the reset elastic member 50. After the first hook 22 disengages from the limiting member 60, the door body 220 is fully opened. The second end 712 of the torsion spring 71 is located on the side of the connecting line 72 close to the door body 220, so that the torsion spring 71 applies a force to the limiting member 60 to rotate in the first direction, and this force causes the limiting member 60 to abut against the bracket 10 so that the limiting member 60 remains in a stationary state.

[0089] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0090] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A door lock device (100), characterized in that: include: A bracket (10), the bracket (10) being used to be installed at the opening of the cavity (210) and being provided with a limiting portion (11); a limiting member (60), wherein the limiting member (60) is arranged on the bracket (10); a first clamping member (20), the first clamping member (20) being used to be fixed to the door body (220), the first clamping member (20) comprising a first hook (22), the door body (220) being rotatably connected to the cavity (210) to open or close the opening of the cavity (210), and the first hook (22) being able to engage with the limiting member (60) when the door body (220) is closed; a second clamping member (30), the second clamping member (30) being used for being movably mounted on the door body (220); during the process of the door body (220) being opened or closed, the second clamping member (30) can move relative to the door body (220); the second clamping member (30) comprises a second hook (32); the second hook (32) is adapted to be engaged with the limiting portion (11) when the door body (220) is closed; and A locking assembly (40), wherein the locking assembly (40) is mounted on the bracket (10), and the locking assembly (40) is used to lock or unlock the second hook (32) when the door body (220) is closed. When the second hook (32) is locked, the second clamping member (30) remains fixed relative to the door body (220); when the second hook (32) is unlocked, the second clamping member (30) can move relative to the door body (220).

2. The door lock device (100) according to claim 1, characterized in that: The locking assembly (40) comprises: a locking member (41), the locking member (41) being rotatably disposed on the bracket (10) and being capable of moving between a locking position and an unlocking position; when the locking member (41) is in the locking position, the locking member (41) locks the second hook (32); and when the locking member (41) is in the unlocking position, the locking member (41) unlocks the second hook (32); A driving component (42), wherein the driving component (42) is arranged on the bracket (10), and the driving component (42) is used to drive the locking member (41) to rotate from the unlocking position to the locking position.

3. The door lock device (100) according to claim 2, characterized in that: The locking member (41) comprises a rotating portion (412), a resisting portion (413) and a pushing portion (414); the rotating portion (412) is rotatably disposed on the bracket (10); the resisting portion (413) and the pushing portion (414) are arranged at intervals along the circumference of the rotating portion (412); the resisting portion (413) locks the second hook (32) when resisting against the second hook (32); and the driving component (42) drives the locking member (41) to rotate via the pushing portion (414).

4. The door lock device (100) according to claim 2, characterized in that: The driving component (42) comprises an electromagnetic part (421) and a push rod (422), wherein the push rod (422) is inserted into the electromagnetic part (421), and the electromagnetic part (421) is used to drive the push rod (422) to move, so that the push rod (422) abuts against and drives the locking member (41) to rotate from the unlocking position to the locking position.

5. The door lock device (100) according to claim 4, characterized in that: The driving component (42) further comprises a first elastic member (423), wherein the first elastic member (423) connects the electromagnetic part (421) and the push rod (422), and the first elastic member (423) applies a resetting elastic force to the push rod (422) when the locking member (41) is in the locking position.

6. The door lock device (100) according to claim 2, characterized in that: The locking assembly (40) further comprises a second elastic member (43), wherein the second elastic member (43) connects the bracket (10) and the locking member (41), and when the locking member (41) is in the locking position, the second elastic member (43) applies a restoring elastic force to the locking member (41) so as to rotate the locking member (41) from the locking position to the unlocking position.

7. The door lock device (100) according to claim 1, characterized in that: The limiting member (60) is rotatably mounted on the bracket (10), and the door lock device (100) further includes a third elastic member (70), wherein the third elastic member (70) connects the bracket (10) and the limiting member (60), and the third elastic member (70) can apply an elastic force to the limiting member (60) when the limiting member (60) is engaged with the first hook (22), so as to rotate the limiting member (60) and drive the door body (220) to close through the first holding member (20).

8. The door lock device (100) according to claim 7, characterized in that: The third elastic member (70) comprises a torsion spring (71), a first end (711) of the torsion spring (71) is connected to the bracket (10), and a second end (712) of the torsion spring (71) is connected to the limiting member (60); When the second end of the torsion spring (71) is located on a first side of a line connecting the rotation center of the limiting member (60) and the first end (711) of the torsion spring (71), the torsion spring (71) applies a thrust to the limiting member (60) to rotate toward the first side; When the second end (712) of the torsion spring (71) is located on the second side of a line connecting the rotation center of the limiting member (60) and the first end (711) of the torsion spring (71), the torsion spring (71) applies a thrust to the limiting member (60) to rotate toward the second side, and the first side and the second side are respectively located on opposite sides of the line.

9. The door lock device (100) according to claim 1, characterized in that: The door lock device (100) also includes a buffer member (80), which connects the limiting member (60) and the bracket (10), and the buffer member (80) is used to slow down the rotation speed of the limiting member (60) during the closing process of the door body (220), thereby slowing down the closing speed of the door body (220).

10. A cooking appliance (200), characterized in that: include: Cavity (210); A door body (220), wherein the door body (220) is rotatably connected to the cavity (210); and In the door lock device (100) described in any one of claims 1 to 9, the bracket (10) is installed at the opening of the cavity (210), and the first clamping member (20) and the second clamping member (30) are arranged on the door body (220).

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