Door lock device and cooking appliance

Abstract

Disclosed in the present application are a door lock device and a cooking appliance. The door lock device of the present application comprises a fastening member and a locking assembly, wherein the fastening member is configured to be mounted on a door, and comprises a first fastening part; the locking assembly comprises a bracket, a first locking mechanism, and a damping component; the bracket is configured to connect to a housing, and the first locking mechanism is movably arranged on the bracket; the bracket is provided with an engaging end, and the first locking mechanism is provided with a first slot; the first fastening part has a first locked state in which the first fastening part enters through the engaging end and engages into the first slot, and a first unlocked state in which the first fastening part separates from the first slot and exits through the engaging end; and the bracket is provided with a first accommodating space. When a body part moves to a first limit position, a damping force increases from zero, that is, when the first fastening part is about to be locked, the damping force is provided; at this point, the door and the housing are close to each other and are about to collide, and the damping force can serve as a buffer to slow down the speed of engagement of the first fastening part, thereby reducing the noise generated by the collision between the door and the housing, improving the user experience.

Description

Door lock device and cooking electric appliance

[0001] Cross-reference to related applications

[0002] This application claims priority to and the benefit of the following patent applications, the contents of which are incorporated herein by reference in their entirety:

[0003] Chinese Patent Application No. 202410871138.2, filed on June 28, 2024, entitled “Door lock device and cooking electric appliance” with the Chinese Patent Office;

[0004] Chinese Patent Application No. 202422137617.X, filed on August 30, 2024, entitled “Door lock device and cooking electric appliance” with the Chinese Patent Office. TECHNICAL FIELD

[0005] The present application relates to the technical field of household appliances, in particular to a door lock device and a cooking electric appliance. BACKGROUND

[0006] In the related art, a cooking electric appliance has a shell and a door body, the door body is rotatably installed on the shell. The door body can be opened or closed under the action of an external force. In order to improve the safety of the cooking electric appliance during operation, for example, to prevent the cooking electric appliance from starting to work when the door body has not been completely closed, a catch is generally provided on the door body, and the catch is movably connected to the door body by a spring. The shell of the cooking electric appliance is provided with a door lock mechanism, the door lock mechanism has a bracket, the bracket forms an inclined clamping portion, and the catch cooperates with the clamping portion to ensure that the door body can be completely closed.

[0007] During the closing of the door body, the catch overcomes the pulling force of the spring and the friction between the catch and the clamping portion, and climbs from the low slope section of the clamping portion to the high slope section. After the catch passes over the high slope section of the clamping portion, under the action of the restoring force of the spring, the catch hooks the high slope section and is clamped with the clamping portion, so that the door body is locked with the shell. However, in actual operation, at the moment when the catch passes over the high slope section of the clamping portion, the friction between the catch and the clamping portion, and the resistance of the spring to the catch disappear. At this time, due to the inertia of the user's operation, a pushing force will continue to be applied to the door body or the door body will continue to move due to inertia, thereby applying a pushing force to the door body, causing the door body and the shell to collide and generate a large noise. Moreover, the door lock mechanism also has the problems of non-compact structure and large space occupation. SUMMARY

[0008] In view of the above problems, the first aspect of the present application provides a door lock device which can improve the noise after the door body is closed.

[0009] In a first aspect, the present application provides a door lock device for locking a door body and a shell of a cooking electric appliance, the door lock device comprising:

[0010] The card holder is used for being installed on the door body, and the card holder comprises a first card portion;

[0011] The locking assembly comprises a bracket, a first locking mechanism and a damping component, the bracket is used for being connected with the shell, the first locking mechanism is movably arranged on the bracket, the bracket is provided with a card-in end, the first locking mechanism has a first card slot, the first card portion has a first locking state of entering the card-in end and being clamped with the first card slot, and a first unlocking state of being separated from the first card slot and exiting from the card-in end, the bracket is provided with a first accommodating space, and the damping component has a body portion, the body portion is located in the first accommodating space, and the body portion is arranged to be movable in the first accommodating space and has a first limit position and a second limit position;

[0012] In the process that the first card portion is switched from the first unlocking state to the first locking state, the body portion moves to the first limit position in the first accommodating space and provides a damping force to the first locking mechanism to slow down the clamping of the first card portion into the first card slot;

[0013] When the first card portion is in the first unlocking state, the body portion is located at the second limit position.

[0014] In the process of closing the door, the body portion is movable between the first limit position and the second limit position, and the damping force provided is zero, when the body portion moves to the first limit position, the damping force increases, that is, when the first card portion is about to be locked, the damping force is provided, at this time, the door body is close to the shell and is about to collide, which can play a buffering role to slow down the clamping speed of the first card portion, thereby reducing the sound of the collision between the door body and the shell, and improving the user experience.

[0015] In an embodiment of the present application, the first locking mechanism has a first state to slow down the first card portion into the first card slot, and has a second state to keep the first card portion clamped with the first card slot;

[0016] After the first locking mechanism is switched to the first state, the damping force provided by the body portion to the first locking mechanism is zero;

[0017] In the process that the first card portion is switched from the first unlocking state to the first locking state, the damping force increases from zero.

[0018] In an embodiment of the present application, the first locking mechanism comprises:

[0019] A first movable member is rotationally connected with the bracket and is drivingly connected with the damping component, and the first movable member has the first card slot;

[0020] The first elastic member has a first end rotatably connected with the support and has a first rotation center, and has a second end rotatably connected with the first movable member and has a second rotation center. The center of the rotation connection of the first movable member relative to the support is a third rotation center. On the first cross section of the first movable member, a straight line passing through the third rotation center and the second rotation center is a first straight line. When the first clamping part switches from the first unlocking state to the first locking state, the trajectory curve of the second rotation center intersects the first straight line. The axis of the rotation of the first movable member relative to the support is perpendicular to the first cross section.

[0021] In an embodiment of the present application, the first movable member has a partially outward convex circular arc surface. The axis of the rotation of the first movable member relative to the support coincides with the axis of the circular arc surface. The circular arc surface is provided with a plurality of meshing teeth continuously arranged along the circumferential direction of the circular arc surface. The damping part includes a damper and a rack. The rack is slidingly connected with the support along a first direction. The rack is engaged with the meshing teeth. Along the length direction of the rack, the rack is arranged to be driven and linearly moves relative to the support. The movable end of the damper is connected with the rack. The axis of the rotation of the first movable member relative to the support is perpendicular to the first direction.

[0022] In an embodiment of the present application, the support is provided with a first stop portion and a second stop portion. The first stop portion and the second stop portion are arranged at intervals along the first direction. The dimension of the body portion along the first direction is H1. The dimension between the first stop portion and the second stop portion is H2. H1 is less than H2.

[0023] In an embodiment of the present application, the damper is a one-way damper.

[0024] In an embodiment of the present application, the first locking mechanism further includes a second elastic member. The second elastic member is arranged on the support. When the first clamping part is in the first unlocking state, the second elastic member abuts against the first movable member. The second elastic member is in a compressed state.

[0025] In an embodiment of the present application, the locking assembly further includes a first micro switch. The first micro switch is arranged on the support. When the first clamping part is in the locking state, the first movable member triggers the first micro switch.

[0026] In an embodiment of the present application, the first movable member includes a rotating hook arm. The locking assembly further includes a blocking limiting member. The blocking limiting member is located on the side of the first movable member having the first clamping groove. The blocking limiting member is movably mounted on the support. The blocking limiting member has a limiting clamping groove. When the first clamping part exits from the clamping end, the limiting clamping groove is clamped with the rotating hook arm to limit the rotation of the first movable member relative to the support. The blocking limiting member is arranged to be driven by the first clamping part to separate the limiting clamping groove from the rotating hook arm.

[0027] In an embodiment of the application, the blocking stopper is rotationally connected with the support, the locking assembly further comprises a third elastic member, the third elastic member is located on a side of the blocking stopper away from the first movable member, the third elastic member abuts against the support and the blocking stopper respectively, and when the rotating hook arm is in the clamped state, the elastic force of the third elastic member can keep the limiting clamping groove and the rotating hook arm in the clamped state.

[0028] In an embodiment of the application, the clamping member further comprises a second clamping portion, the second clamping portion is arranged in the first direction away from the first clamping portion, the locking assembly further comprises a second locking mechanism, the second locking mechanism is arranged in the first direction away from the first locking mechanism, the second locking mechanism is movably connected with the support, the second locking mechanism has a second clamping groove, the second clamping portion has a second locking state of entering into clamping with the second clamping groove from the clamping end and a second unlocking state of sequentially exiting from the second clamping groove and the clamping end, the first direction is perpendicular to the clamping direction, when the second locking mechanism is in the second unlocking state, the second locking mechanism has a tendency to slow down the second clamping portion entering into the second clamping groove, and when the second clamping portion is in the locking state, the second locking mechanism has a tendency to block the second clamping portion from separating from the second clamping groove.

[0029] In an embodiment of the application, the second locking mechanism comprises:

[0030] a second movable member, rotationally connected with the support, the second movable member has a second clamping groove;

[0031] a fourth elastic member, a first connecting end of the fourth elastic member is connected with the support, a second connecting end of the fourth elastic member is connected with the second movable member, when the second clamping portion is in the second unlocking state, the fourth elastic member has a tendency to slow down the second clamping portion entering into the second clamping groove, and when the second clamping portion is in the second locking state, the fourth elastic member has a tendency to keep the second clamping portion clamped with the second clamping groove.

[0032] In an embodiment of the application, the first connecting end and the support have a first rotation center, the second connecting end and the second movable member have a second rotation center, the second movable member has a third rotation center relative to the support, on the second cross section of the second movable member, a straight line passing through the third rotation center and the first rotation center is a second straight line, when the second clamping portion switches from the second unlocking state to the second locking state, a locus curve of the second rotation center intersects the second straight line, and an axis of rotation of the second movable member relative to the support is perpendicular to the second cross section.

[0033] In an embodiment of the application, the locking assembly further comprises a second micro switch, the second micro switch is arranged on the support and located between the first locking mechanism and the second locking mechanism, and when the second clamping portion is in the locking state, the second movable member triggers the second micro switch.

[0034] The second aspect of the present application provides a door lock device which can at least solve the problem of large space occupied by the door lock mechanism.

[0035] In the second aspect, the present application provides a door lock device, which comprises a bracket, a clamping piece, a first movable piece and a damping component. The bracket is used to be installed at an opening of a housing. The clamping piece is used to be fixed to a door body. The door body is installed at the opening of the housing. The door body is rotationally connected with the housing to open or close the opening of the housing. The first movable piece is installed on the bracket and can rotate relative to the bracket. The first movable piece is used to cooperate with the clamping piece to drive the door body to close during the closing process of the door body. The damping component comprises a first buffer part and a second buffer part rotationally connected with the first buffer part. The first buffer part is installed on the bracket. The second buffer part at least partially extends into the first movable piece. During the rotation process of the first movable piece, the first buffer part rotates relative to the second buffer part to slow down the rotation speed of the first movable piece through the damping between the first buffer part and the second buffer part, so as to slow down the closing speed of the door body.

[0036] In an embodiment of the present application, the first movable piece is provided with a mounting hole. One end of the second buffer part is inserted into the mounting hole. The second buffer part cooperates with the hole wall of the mounting hole to apply a buffering force to the first movable piece.

[0037] In an embodiment of the present application, the first movable piece is used to rotate between a first position and a second position. The first movable piece drives the door body to close through the clamping piece during the rotation process from the first position to the second position.

[0038] The hole wall of the mounting hole is formed with a stop part. When the first movable piece is located at the first position, one end of the second buffer part is arranged in a spaced manner with the stop part. After the first movable piece rotates by a preset angle from the first position to the second position, one end of the first buffer part cooperates with the stop part to slow down the rotation speed of the first movable piece by the damping component.

[0039] In an embodiment of the present application, the bracket is provided with an assembly hole. The first buffer part is at least partially arranged in the assembly hole.

[0040] In an embodiment of the present application, the door lock device comprises a first elastic piece. The first elastic piece connects the bracket and the first movable piece. The first elastic piece can apply an elastic force to the first movable piece when the first movable piece cooperates with the clamping piece, so as to rotate the first movable piece to drive the door body to close through the clamping piece.

[0041] In an embodiment of the present application, the first elastic piece comprises a torsion spring. A first end of the torsion spring is connected with the bracket. A second end of the torsion spring is connected with the first movable piece.

[0042] When the second end of the torsion spring is located at the first side, the torsion spring applies a pushing force to the first movable member to rotate towards the first side, the first side being one side of the first straight line passing through the rotation center of the first movable member and the first end of the torsion spring;

[0043] When the second end of the torsion spring is located at the second side, the torsion spring applies a pushing force to the first movable member to rotate towards the second side, the second side being the other side of the first straight line passing through the rotation center of the first movable member and the first end of the torsion spring, the first side and the second side being two opposite sides of the first straight line.

[0044] In an embodiment of the present application, the first movable member is configured to rotate between the first position and the second position, and the first movable member is driven by the clamping member to close the door body during rotation from the first position to the second position.

[0045] The door lock device further comprises a second elastic member arranged on the bracket, and the second elastic member applies a pushing force to the first movable member to rotate towards the second position when the first movable member is in the first position.

[0046] In an embodiment of the present application, the clamping member comprises a mounting portion and a first clamping portion arranged on the mounting portion, the first clamping portion is formed with a clamping hook, the first movable member is formed with a first clamping groove, and the first movable member is driven by the first clamping portion to close the door body when the clamping hook is clamped in the first clamping groove.

[0047] In an embodiment of the present application, the clamping member further comprises a second clamping portion arranged on the mounting portion, the second clamping portion is arranged in a spaced-apart manner with the first clamping portion, and the door lock device further comprises a second movable member rotatably arranged on the bracket, the second clamping portion is clamped with the second movable member when the door body is closed.

[0048] In an embodiment of the present application, the door lock device further comprises a fourth elastic member, the fourth elastic member connects the second movable member and the bracket, and the fourth elastic member applies an elastic force to the second movable member to reset when the second clamping portion is separated from the second movable member.

[0049] In a third aspect, the present application provides a cooking electric appliance, comprising:

[0050] A shell, an inner portion of the shell is formed with a cavity, and a front end of the shell is provided with a door opening in communication with the cavity;

[0051] A door body configured to cover the door opening, one end of the door body being pivotally connected with the shell;

[0052] In the door lock device of any embodiment of the first aspect, the clamping member is mounted on the door body, and the first clamping portion extends from one side of the door body towards the door opening, the locking assembly is mounted in the shell, the first clamping portion is in the first locking state when the door body covers the door opening, and the first clamping portion is in the first unlocking state when the door body is in the open state.

[0053] In a fourth aspect, a cooking appliance is provided. The cooking appliance comprises a door body, a housing, and the door lock device of the second aspect. The bracket is mounted at the opening of the housing, and the clamping piece is arranged on the door body.

[0054] In the door lock device and the cooking appliance of the embodiments of the present application, during the closing of the door body, the damping component can slow down the rotation speed of the first movable piece, so as to slow down the closing speed of the door body, thereby reducing the noise generated by the collision between the door body and the housing, and improving the user experience. In addition, the first buffer is mounted on the bracket, and the second buffer at least partially extends into the first movable piece, so that the space of the door lock device can be fully utilized, the gap between the first movable piece and the bracket is smaller, and the structure of the door lock device is more compact.

[0055] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0056] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in the attached drawings indicate the same or similar elements. In the drawings:

[0057] FIG. 1 is an exploded view of a door lock device according to a first embodiment of the present application;

[0058] FIG. 2A is a side view of the door lock device according to the first embodiment of the present application from a first perspective in an unlocked state;

[0059] FIG. 2B is a side view of the door lock device according to the first embodiment of the present application from a first perspective during the clamping piece being clamped into the locking assembly;

[0060] FIG. 2C is a side view of the door lock device according to the first embodiment of the present application from a second perspective;

[0061] FIG. 2D is a side view of the door lock device according to the first embodiment of the present application from a first perspective in a locked state;

[0062] FIG. 2E is a side view of the door lock device according to the first embodiment of the present application from a second perspective;

[0063] FIG. 2F is a side view of a door lock device according to a second embodiment of the present application from a first perspective in an unlocked state;

[0064] Fig. 2G is a side view of the first perspective of a door lock device in an unlocked state according to a third embodiment of the present application;

[0065] Fig. 2H is a side view of the first perspective of a door lock device in an unlocked state according to a fourth embodiment of the present application;

[0066] Fig. 2I is an isometric view of a door lock device in a locked state according to a fifth embodiment of the present application;

[0067] Fig. 2J is an exploded view of the door lock device of Fig. 2I;

[0068] Fig. 2K is an isometric view of a first movable element of an embodiment of a door lock device according to an embodiment of the present application;

[0069] Fig. 2L is a side view of the first perspective of a door lock device in an unlocked state according to a fifth embodiment of the present application;

[0070] [Corrected according to Rule 91 02.04.2025] Figs. 2M-2O are side views of the first perspective of a door lock device in different states during locking according to a fifth embodiment of the present application;

[0071] Fig. 3A is an isometric view of a cooking appliance according to an embodiment of the present application from a first perspective;

[0072] Fig. 3B is a partial isometric view of a cooking appliance according to an embodiment of the present application from a second perspective;

[0073] Fig. 3C is a partial structural schematic view of a cooking appliance according to an embodiment of the present application.

[0074] The reference signs in the detailed description are as follows: 1000, cooking appliance; 100, door lock device; 200, shell; 300, door body; 10, clamping piece; 11, first clamping part; 111, first hook head; 112, first hook handle; 113, first avoiding slot; 12, second clamping part; 121, second hook head; 122, second hook handle; 123, clamping interface; 124, second avoiding slot; 125, clamping hole; 13, mounting part; 20, locking assembly; 21, support; 211, clamping end; 212, first limiting part; 213, second limiting part; 214, first stop part; 215, second stop part; 216, pivoting shaft; 217, assembly hole; 22, first locking mechanism; 221, first movable piece; 2211, first clamping slot; 2214, mounting hole; 2215, stop part; 22111, avoiding part; 22112, first guide surface; 2212, meshing tooth; 2213, rotating hook arm; 222, first elastic piece; 2221, first end; 2222, second end; 223, second elastic piece; 224, sliding piece; 2241, inclined surface; 225, elastic telescopic piece; 23, second locking mechanism; 231, second movable piece; 2311, second clamping slot; 2312, pivoting hole; 232, fourth elastic piece; 2321, first connecting end; 2322, second connecting end; 25, blocking and limiting piece; 251, limiting clamping slot; 252, second guide surface; 26, third elastic piece; 27, cover plate; 28, micro switch; 281, first micro switch; 282, second micro switch; 30, damping part; 31, rack; 32, damper; 321, body part; 322, movable end; 33, first buffer part; 34, second buffer part; X, clamping direction; Y, first direction; Z, first straight line; P, second straight line. DETAILED DESCRIPTION

[0075] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0077] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0078] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0079] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0080] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0081] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0082] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0083] According to the embodiment of the present application, a door lock device 100 is provided for locking a door body 300 of a cooking appliance 1000 to a housing 200, as shown in FIGS. 1-3B. The door lock device 100 comprises a clamping member 10 and a locking assembly 20. The clamping member 10 is configured to be mounted on the door body 300 and comprises a first clamping portion 11. The locking assembly 20 comprises a bracket 21, a first locking mechanism 22 and a damping member 30. The bracket 21 is configured to be connected to the housing 200. The first locking mechanism 22 is movably arranged on the bracket 21. The bracket 21 is provided with a clamping end 211. The first locking mechanism 22 is provided with a first clamping groove 2211. The first clamping portion 11 is configured to be clamped into the first clamping groove 2211 from the clamping end 211 in a first locking state and to be separated from the first clamping groove 2211 and exit from the clamping end 211 in a first unlocking state. The bracket 21 is provided with a first accommodating space. The damping member 30 is provided with a body portion 321. The body portion 321 is located in the first accommodating space and is configured to be movable in the first accommodating space and have a first limit position and a second limit position. When the first clamping portion 11 is switched from the first unlocking state to the first locking state, the body portion 321 moves to the first limit position in the first accommodating space and provides a damping force to the first locking mechanism 22 to slow down the clamping of the first clamping portion 11 into the first clamping groove 2211. When the first clamping portion 11 is in the first unlocking state, the body portion 321 is located at the second limit position.

[0084] The damping member 30 and the first locking mechanism 22 can form a crank slider mechanism or a gear and rack 31 transmission mechanism. The damping member 30 is a driven member. The movement of the first locking mechanism 22 drives the driven member to move, so that the body portion 321 moves in the first accommodating space.

[0085] The door body 300 and the housing 200 can be clamped by the door lock device 100. Specifically, one end of the door body 300 is rotatably connected to the housing 200. The other end of the door body 300 is locked to the housing 200 by the door lock device 100 to open and close the door body 300. The door lock device 100 can be provided in multiple numbers. The door body 300 is separably locked to the housing 200 by the door lock device 100.

[0086] The movement of the first locking mechanism 22 relative to the bracket 21 can be linear movement or rotation.

[0087] The first clamping portion 11 can be a first hook body structure, a T-shaped rod or an L-shaped rod structure, or a rod structure with a clamping protrusion at the end.

[0088] The first limit position and the second limit position are two different positions where the body portion 321 abuts against the bracket 21.

[0089] As an example, the first hook body structure includes a first hook head 111 and a first hook handle 112, the first hook head 111 is connected with the first hook handle 112, and the first hook head 111 and the first hook handle 112 jointly define a first avoiding slot 113. When the first clamping part 11 is in the first locking state, part of the first hook head 111 is located in the first clamping slot 2211, and part of the first movable part 221 is located in the first avoiding slot 113.

[0090] The bracket 21 can be arranged on the shell 200 by means of screwing, clamping, bonding or welding.

[0091] As an example, please refer to FIG. 2F, the first locking mechanism 22 includes a sliding part 224 and an elastic expansion part 225, the sliding part 224 is slidingly connected with the bracket 21 along a first direction Y, the damping part 30 is located above the sliding part 224, the sliding part 224 is drivingly connected with the damping part 30, the damping part 30 can be arranged on the side of the bracket 21 away from the sliding part 224, the first direction Y can be the height direction of the shell 200, the bottom of the sliding part 224 is provided with a first clamping slot 2211, one end of the elastic expansion part 225 abuts against the sliding part 224, and the other end of the elastic expansion part 225 abuts against the bracket 21, the bottom of the sliding part 224 is provided with an inclined surface 2241, the inclined surface 2241 is located on the side of the first clamping slot 2211 toward the clamping end 211, the minimum size between the clamping end 211 and the arbitrary position on the inclined surface 2241 along the clamping direction X of the first clamping part 11 shows an increasing trend, the inclined surface 2241 is extruded by the first clamping part 10, so that the sliding part 224 moves upward, the elastic expansion part 225 is compressed, and finally the clamping of the first clamping part 10 is achieved. In the process of sliding of the sliding part 224 on the inclined surface 2241, the sliding part 224 drives the damping part 30 to move upward, so that the damping part 30 is in the first limit position and is compressed, and the damping part 30 generates a damping force to resist the upward movement of the sliding part 224, so as to slow down the clamping speed of the first clamping part 11. In other examples, the first locking mechanism 22 can also be rotationally arranged on the bracket 21. The elastic expansion part 225 can be a compression spring or an elastic expansion rod.

[0092] In the process of closing the door, the body part 321 moves between the first limit position and the second limit position, and the damping force provided is zero. When moving to the first limit position, the damping force increases, that is, when the first clamping part 11 is about to be locked, the damping force is provided. At this time, the door body 300 is close to the shell 200 and is about to collide, which can play a buffering role to slow down the clamping speed of the first clamping part 11, thereby reducing the sound of the collision between the door body 300 and the shell 200, and improving the user experience.

[0093] In an embodiment of the present application, please refer to FIG. 2B-2E, the first locking mechanism 22 has a first state of slowing down the first clamping part 11 into the first clamping groove 2211, and a second state of keeping the first clamping part 11 clamped with the first clamping groove 2211. When the first locking mechanism 22 is switched to the first state, the damping force provided by the body part 321 to the first locking mechanism 22 is zero. During the switching of the first clamping part 11 from the first unlocking state to the first locking state, the damping force increases from zero. FIG. 2B and FIG. 2C are side views of the door lock device 100 in different orientations when the body part 321 is in the same position of the first accommodating space, which exemplarily show the structure of the first locking mechanism 22 in the first state and the damping force being zero, and FIG. 2D and FIG. 2E show the structure of the first locking mechanism 22 in the second state and the damping force being greater than zero.

[0094] During the closing of the door, when the first clamping part 11 pushes the first locking mechanism 22 to move, the force needs to overcome the resistance of the first locking mechanism 22 itself, at this time, the body part 321 is in a movable state and does not provide damping force to the first locking mechanism 22, so that the closing resistance can be reduced during the clamping process. With the movement of the first clamping part 11, the first locking mechanism 22 is in the second state, and the clamping speed of the first clamping part 11 is accelerated under the action of the first locking mechanism 22. At this time, the body part 321 moves to the first limit position and is limited, and the damping component 30 provides resistance to the first locking mechanism 22 to slow down the clamping speed of the first clamping part 11, which can reduce the impact sound between the door body 300 and the frame on the one hand, and make the closing more smooth on the other hand.

[0095] In an embodiment of the present application, please refer to FIG. 2A-2E and FIG. 2G, the first locking mechanism 22 includes a first movable part 221 and a first elastic part 222. The first movable part 221 is rotatably connected with the bracket 21 and drivingly connected with the damping component 30, and has a first clamping groove 2211. The first elastic part 222 has a first end 2221 rotatably connected with the bracket 21 and has a first rotation center, and has a second end 2222 rotatably connected with the first movable part 221 and has a second rotation center. The center of the rotatable connection of the first movable part 221 with the bracket 21 is a third rotation center. On a first cross section of the first movable part 221, a straight line passing through the third rotation center and the second rotation center is a first straight line Z. When the first clamping part 11 is switched from the first unlocking state to the first locking state, the trajectory curve of the second rotation center intersects with the first straight line Z. The axis of the rotation of the first movable part 221 relative to the bracket 21 is perpendicular to the first cross section.

[0096] The damping component 30 is rotatably connected with the first movable part 221, and can also be meshed with the first movable part 221 through a rack 31.

[0097] As an example, the damping component 30 comprises a damper 32, an end of the damper 32 is rotationally connected with the first movable piece 221, and the end of the damper 32 away from the first movable piece 221 is connected with the support 21.

[0098] The first elastic piece 222 can be a torsion spring or an elastic telescopic rod. The elastic telescopic rod can be an air spring. The elastic telescopic rod can also comprise a first rod, a second rod and a first compression spring. The first rod is a hollow rod, and part of the second rod is arranged in the cavity of the first rod and extends from one end of the first rod. The other end of the first rod is blocked, and the first compression spring is arranged between the other end of the first rod and the second rod. FIGS. 2A-2E exemplarily show the structure in which the first elastic piece 222 is a torsion spring.

[0099] As an example, please refer to FIG. 2G. The first elastic piece 222 can be an elastic telescopic rod, one end of the elastic telescopic rod is rotationally connected with the support 21, and the other end of the elastic telescopic rod is rotationally connected with the first movable piece 221. In the same plane perpendicular to the rotation axis of the first elastic piece 222 and the support 21, the center of the rotation connection of the elastic telescopic rod and the support 21 is the first rotation center. The center of the rotation connection of the elastic telescopic rod and the first movable piece 221 is the second rotation center. In the clamping process, the first movable piece 221 rotates, and at the same time, the first elastic telescopic rod swings relative to the support 21.

[0100] The arrangement of the first elastic piece 222 can reduce the clamping speed of the first clamping part 11, which can buffer the noise caused by the impact of the door body 300 on the shell 200 when the door body 300 is closed, and at the same time, can provide torque for the first movable piece 221 to maintain the clamping of the first clamping part 11.

[0101] In an embodiment of the present application, please refer to FIGS. 1 and 2A. The first movable piece 221 has a partially convex circular arc surface, the axis of rotation of the first movable piece 221 relative to the support 21 coincides with the axis of the circular arc surface, the circular arc surface is provided with a plurality of engagement teeth 2212 arranged continuously along the circumference of the circular arc surface, the damping component 30 comprises a damper 32 and a rack 31, the damper 32 has a body part 321 and a movable end 322, the movable end 322 can move relative to the body part 321 along the first direction Y, the rack 31 is slidingly connected with the support 21 along the first direction Y, the rack 31 is engaged with the engagement teeth 2212, along the length direction of the rack 31, the rack 31 is arranged to be driven and moves linearly relative to the support 21, the movable end 322 of the damper 32 is connected with the rack 31, and the axis of rotation of the first movable piece 221 relative to the support 21 is perpendicular to the first direction Y.

[0102] As an example, please refer to FIG. 2C, the rack 31 is provided with an embedding structure, and the movable end 322 of the damper 32 is located in the embedding structure to achieve the hanging of the damper 32 and the rack 31. In other examples, the end of the damper 32 can be connected with the rack 31 by means of screws or welding.

[0103] As an example, please refer to FIG. 1, the bracket 21 is provided with a cover plate 27, which is detachably connected with the bracket 21, and can be one or both of clamping or screw connection, and cooperates with the bracket 21 to define a guide groove, the length direction of the guide groove can be the same as the first direction Y, and the rack 31 and the damper 32 are both arranged in the guide groove, and the end of the damper 32 abuts against the rack 31.

[0104] In the clamping process of the first clamping part 11, the first clamping part 11 drives the first movable part 221 to rotate, and the rotation of the first movable part 221 drives the rack 31 to move along the length direction of the rack 31, so that the damper 32 is compressed, and the damper 32 provides a reverse damping force to slow down the speed of the first clamping part 11 entering the first clamping groove 2211, thereby reducing the noise generated by the collision of the door body 300 with the shell 200 when the door body 300 is closed, and reducing the noise of the clamping part 10 and the locking assembly 20.

[0105] In an embodiment of the present application, please refer to FIG. 2C, the bracket 21 is provided with a first stop portion 214 and a second stop portion 215, the first stop portion 214 and the second stop portion 215 are arranged along the first direction Y, the dimension of the body portion 321 along the first direction Y is H1, and the dimension between the first stop portion 214 and the second stop portion 215 is H2, H1 is less than H2.

[0106] As an example, the first stop portion 214 and the second stop portion 215 are located on the side of the bracket 21 away from the first locking mechanism 22.

[0107] Taking the upward and downward direction shown in FIG. 2C as a reference, the first stop portion 214 is located below the second stop portion 215, the position at which the body portion 321 abuts against the first stop portion 214 is the first limit position, and the position at which the body portion 321 abuts against the second stop portion 215 is the second limit position. In other examples, the first stop portion 214 can also be located above the second stop portion 215, the position at which the body portion 321 abuts against the second stop portion 215 is the first limit position, and the position at which the body portion 321 abuts against the first stop portion 214 is the second limit position.

[0108] Thus, the movement of the body portion 321 in the first accommodating space can be achieved.

[0109] In an embodiment of the present application, the damper 32 is a one-way damper 32.

[0110] The one-way damper 32 can provide damping force during the clamping of the first clamping part 11, and no damping force is provided when the first clamping part 11 is pulled out of the first clamping groove 2211. On the one hand, the damping force can reduce the impact sound of the door body 300 when the door is closed. On the other hand, the damping force can save labor when unlocking, thereby improving the user experience.

[0111] In an embodiment of the present application, please refer to FIGS. 2A and 2D, the first locking mechanism 22 further comprises a second elastic member 223, the second elastic member 223 is arranged on the bracket 21, and the second elastic member 223 abuts against the first movable member 221 when the first clamping part 11 is in the first unlocking state, and the second elastic member 223 is in a compressed state.

[0112] The second elastic member 223 includes but is not limited to one of a compression spring, an elastic rubber member, an elastic telescopic rod, or an elastic polyurethane member. The elastic telescopic rod can be but is not limited to the above examples.

[0113] For example, the first movable member 221 can be separated from the second elastic member 223 or can abut against the second elastic member 223 when the first movable member 221 rotates by a certain angle during the clamping of the first clamping part 11.

[0114] In the first unlocking state, the first movable member 221 is balanced under the action of the first elastic member 222 and the second elastic member 223. On the one hand, the second elastic member 223 has a buffering effect when the first clamping part 11 is unlocked, which can reduce the impact of the first movable member 221 on the bracket 21, thereby reducing the damage to the bracket 21, prolonging the service life of the bracket 21, and on the other hand, the elastic force of the second elastic member 223 can offset part of the elastic force of the first elastic member 222 during the clamping of the first clamping part 11, thereby reducing the pushing force acting on the clamping member 10, and making the clamping more labor-saving.

[0115] In an embodiment of the present application, please refer to FIGS. 2A and 2D, the locking assembly 20 further comprises a first micro switch 281, the first micro switch 281 is arranged on the bracket 21, and the first movable member 221 triggers the first micro switch 281 when the first clamping part 11 is in the locking state.

[0116] The first micro switch 281 can be connected to the bracket 21 by a screw, or can be fixed to the bracket 21 by clamping or bonding.

[0117] Taking the cooking appliance 1000 as an example, such as a common microwave oven. During the use of the microwave oven, when the oven door is closed, the first clamping part reaches the locked state, at which time the first clamping part triggers the first micro switch 281 accurately, thereby generating a door closed signal. For example, when the user is ready to heat food and closes the microwave oven door, if the first clamping part is not in the correct locked state, the first micro switch 281 is not triggered, and the microwave oven will not be able to start working. Only when the first clamping part is successfully locked and triggers the first micro switch 281 to generate a door closed signal, the heating function of the microwave oven will be activated. This effectively prevents the microwave oven from starting in the case that the oven door is not closed tightly, avoiding potential harm to the human body caused by microwave leakage.

[0118] In an embodiment of the present application, please refer to FIG. 2A and FIG. 2B, the first movable part 221 includes a rotating hook arm 2213, and the locking assembly 20 further includes a blocking and limiting part 25, which is located on the side of the first movable part 221 having the first clamping groove 2211, and is movably mounted on the bracket 21. The blocking and limiting part 25 has a limiting clamping groove 251, and when the first clamping part 11 exits from the clamping end 211, the limiting clamping groove 251 is clamped with the rotating hook arm 2213 to limit the rotation of the first movable part 221 relative to the bracket 21. The blocking and limiting part 25 is arranged to be driven by the first clamping part 11 to separate the limiting clamping groove 251 from the rotating hook arm 2213.

[0119] As an example, the first movable part 221 is further provided with a first guide surface 22112, which is connected with the groove wall of the first clamping groove 2211. During the clamping process of the first clamping part 11 into the first clamping groove 2211, the first clamping part 11 first abuts against the first guide surface 22112, and the first movable part 221 is rotated by the external force driving, at which time the position of the first clamping groove 2211 relative to the first clamping part 11 changes and slides into the first clamping groove 2211 under the guidance of the first guide surface 22112, and finally moves into the first clamping groove 2211 while maintaining the clamped state under the action of the first elastic part 222.

[0120] As an example, the first clamping groove 2211 has an avoiding part 22111, which can avoid the first clamping groove 2211 to reduce the probability of interference during the clamping process, with the orientation of the slot of the first clamping groove 2211 changing with the rotation of the first movable part 221 during the clamping process of the first clamping part 11. Part of the avoiding part 22111 can be connected with the above-mentioned first guide surface 22112. In other examples, the width of the first clamping groove 2211 is slightly larger than the width (the size along the clamping direction XX) of the first clamping part 11, to further reduce the probability of interference during the clamping process causing jamming.

[0121] The limiting clamping groove 251 can be, but is not limited to, a U-shaped groove, a trapezoidal groove, or a rectangular groove, and can be designed according to actual needs.

[0122] The blocking limiting piece 25 is slidably connected with the support 21, and the blocking limiting piece 25 can also be rotatably connected with the support 21.

[0123] For example, the blocking limiting piece 25 is slidably connected with the support 21 along the first direction Y. Specifically, the support 21 is provided with a guide groove extending along the first direction Y, the blocking limiting piece 25 is arranged in the guide groove and can move along the first direction Y. A spring or an elastic telescopic rod is arranged between the guide groove and the blocking limiting piece 25.

[0124] For example, the end of the support 21 receiving the clamping piece 10 is a clamping end 211, the side of the blocking limiting piece 25 facing the clamping end 211 is provided with a second guide surface 252, the second guide surface 252 has an increasing trend from an arbitrary position along the first direction Y to the minimum size of the clamping end 211, and in the clamping process of the first clamping part 11, the second guide surface 252 is pressed by the first clamping part 11 to move the limiting clamping groove 251 away from the rotating hook arm 2213, thereby releasing the rotation restriction of the first movable piece 221 by the blocking limiting piece 25, and finally realizing the clamping of the first clamping part 11.

[0125] For example, the side of the blocking limiting piece 25 away from the first movable piece 221 is provided with a first magnet and a second magnet, the first magnet is connected with the blocking limiting piece 25 or can be part of the blocking limiting piece 25, the second magnet is fixed to the support 21 or can be part of the support 21, the first magnet and the second magnet are oppositely arranged and have the same magnetic pole facing each other, and the rotating hook arm 2213 and the limiting clamping groove 251 can be kept in the clamped state through the repulsion of the first magnet and the second magnet.

[0126] Through the arrangement of the rotating hook arm 2213 and the limiting clamping groove 251, the probability of abnormal triggering of the first movable piece 221 can be reduced, and the reliability of the clamping of the first clamping part 11 and the first clamping groove 2211 can be improved.

[0127] In an embodiment of the present application, referring to FIGS. 2A and 2B, the blocking limiting piece 25 is rotatably connected with the support 21, and the locking assembly 20 further comprises a third elastic member 26, the third elastic member 26 is located on the side of the blocking limiting piece 25 away from the first movable piece 221, and the third elastic member 26 abuts against the support 21 and the blocking limiting piece 25 respectively. When the rotating hook arm 2213 is in the clamped state, the elastic force of the third elastic member 26 can keep the limiting clamping groove 251 and the rotating hook arm 2213 in the clamped state.

[0128] The third elastic member 26 includes a compression spring, an elastic telescopic rod, or a torsion spring.

[0129] As an example, the third elastic member 26 can be a first compression spring, which is located on the side of the blocking stopper 25 away from the second movable member 231 and offset from the rotation center of the blocking stopper 25. One end of the third elastic member 26 abuts against the bracket 21, and the other end abuts against the blocking stopper 25. The blocking stopper 25 has a tendency to rotate towards the first movable member 221 under the elastic force of the third elastic member 26, so as to maintain the clamping state of the rotating hook arm 2213.

[0130] The third elastic member 26 can maintain the clamping state of the rotating hook arm 2213, so as to reduce the probability of abnormal triggering of the first movable member 221, thereby further improving the clamping reliability of the first clamping portion 11. The rotating hook arm 2213 can be released from the clamping state by overcoming the elastic force of the third elastic member 26, so as to facilitate the clamping operation of the first clamping portion 11. In addition, the first clamping portion 11 can be provided with a damping force during the clamping process, so as to slow down the speed of entering the first clamping groove 2211.

[0131] In an embodiment of the present application, referring to FIGS. 1-2H, the clamping member 10 further comprises a second clamping portion 12, which is spaced apart from the first clamping portion 11 along a first direction Y. The locking assembly 20 further comprises a second locking mechanism 23, which is spaced apart from the first locking mechanism 22 along the first direction Y. The second locking mechanism 23 is movably connected to the bracket 21. The second locking mechanism 23 has a second clamping groove 2311. The second clamping portion 12 has a second locked state of being clamped into the second clamping groove 2311 from a clamping end 211, and a second unlocked state of being separated from the second clamping groove 2311 and exiting from the clamping end 211. The first direction Y is perpendicular to a clamping direction X. When the second locking mechanism 23 is in the second unlocked state, the second locking mechanism 23 has a tendency to slow down the second clamping portion 12 entering the second clamping groove 2311. When the second clamping portion 12 is in the locked state, the second locking mechanism 23 has a tendency to block the second clamping portion 12 from being separated from the second clamping groove 2311.

[0132] The second clamping portion 12 can be a metal member or a non-metal member.

[0133] As an example, the clamping member 10 further comprises a mounting portion 13, and the first clamping portion 11 and the second clamping portion 12 are connected to the mounting portion 13, which can be connected by welding, screwing, riveting or integrally formed, etc.

[0134] As an example, referring to FIG. 1, FIG. 2A-2E, the second clamping part 12 is a rod-shaped structure with a clamping interface 123. The second clamping groove 2311 has a first wall body and a second wall body, which are arranged at intervals, the size of the first wall body from the clamping end 211 is smaller than the size of the second wall body with the clamping end 211, the clamping interface 123 of the second clamping part 12, the first wall body is clamped into the clamping interface 123, and a part of the second clamping part 12 is located in the second clamping groove 2311.

[0135] As an example, referring to FIG. 2H, the second clamping part 12 is a second hook body structure, which includes a second hook head 121 and a second hook handle 122, the second hook head 121 and the second hook handle 122 are connected, and the second hook head 121 and the second hook handle 122 jointly define a second avoiding groove 124. When the second clamping part 12 is in the second locking state, part of the first hook head 111 is located in the second clamping groove 2311, and part of the second movable piece 231 is located in the first avoiding groove 113.

[0136] As an example, in order to improve the reliability of the clamping of the second clamping groove 2311 and the second clamping part 12, the bracket 21 is provided with a first limiting part 212 and a second limiting part 213 for limiting the rotation angle of the second movable piece 231, the first limiting part 212 and the second limiting part 213 are arranged at different positions of the bracket 21, when the second clamping part 12 is clamped, the second movable piece 231 abuts against the first limiting part 212, and during the clamping of the second clamping part 12, the second limiting part 213 is used to limit the rotation angle of the second movable piece 231, so that the second movable piece 231 rotates between the first limiting part 212 and the second limiting part 213.

[0137] Therefore, the clamping and separation of the second clamping part 12 and the second clamping groove 2311 can be realized, so as to realize the unlocking of the door lock device 100 when the door is opened and the locking when the door is closed.

[0138] In an embodiment of the present application, referring to FIG. 1, FIG. 2A-2E, the second locking mechanism 23 includes a second movable piece 231 and a fourth elastic piece 232, wherein the second movable piece 231 is rotationally connected with the bracket 21, and the second movable piece 231 has a second clamping groove 2311. The first connecting end 2321 of the fourth elastic piece 232 is connected with the bracket 21, the second connecting end 2322 of the fourth elastic piece 232 is connected with the second movable piece 231, the fourth elastic piece 232 has a tendency to slow down the second clamping part 12 into the second clamping groove 2311 when the second clamping part 12 is in the second unlocking state, and the fourth elastic piece 232 has a tendency to keep the second clamping part 12 clamped with the second clamping groove 2311 when the second clamping part 12 is in the second locking state.

[0139] The fourth elastic member 232 includes, but is not limited to, any one of a torsion spring or an elastic telescopic rod. The elastic telescopic rod can be the same as the structures listed above.

[0140] As an example, the fourth elastic member 232 can be a first torsion spring, the bracket 21 is provided with a first connecting hole, the second movable member 231 is provided with a second connecting hole, a first connecting end 2321 of the first torsion spring is rotationally connected with the first connecting hole, the other end of the first torsion spring is rotationally connected with the second connecting hole, and the position of the rotationally connected with the second connecting hole deviates from the rotation center of the second movable member 231 relative to the bracket 21.

[0141] The fourth elastic member 232 can slow down the clamping speed of the second clamping part 12, on the one hand, it can buffer the noise of the door body 300 hitting the shell 200 when closing the door, on the other hand, it can reduce the clamping noise of the second clamping part 12. At the same time, it is convenient to open and close the door. In other examples, the second clamping part 12 is a hook-shaped structure, the second movable member 231 is slidingly connected with the bracket 21 along the first direction Y, the fourth elastic member 232 is provided between the second movable member 231 and the bracket 21, the fourth elastic member 232 is a compression spring, the end of the slot of the second clamping groove 2311 close to one side of the clamping end 211 has an inclined surface, along the direction from the first clamping part 11 to the second clamping part 12, the size of any point on the inclined surface to the clamping end 211 shows an increasing trend, in the process of clamping the second clamping part 12, the second clamping part 12 slides on the inclined surface, the second movable member 231 moves relative to the bracket 21, the fourth elastic member 232 is compressed, and the second clamping part 12 slides into the second clamping groove 2311 to realize clamping.

[0142] In an embodiment of the present application, the first connecting end 2321 has a first rotation center with the bracket 21, the second connecting end 2322 has a second rotation center with the second movable member 231, and the second movable member 231 has a third rotation center relative to the bracket 21, on the second cross section of the second movable member 231, the straight line passing through the third rotation center and the first rotation center is a second straight line P, when the second clamping part 12 switches from the second unlocking state to the second locking state, the trajectory curve of the second rotation center intersects with the second straight line P, and the axis of rotation of the second movable member 231 relative to the bracket 21 is perpendicular to the second cross section.

[0143] As an example, the fourth elastic member 232 is a second elastic telescopic rod, which can be of the structure listed above. One end of the second elastic telescopic rod is rotationally connected to the support 21, and the other end is rotationally connected to the second movable member 231. During the clamping of the second clamping portion 12, the second movable member 231 is driven to rotate in the same plane perpendicular to the hinge axis of the second elastic telescopic rod and the support 21, while the second elastic telescopic rod swings. The trajectory curve of the rotation center between the second elastic telescopic rod and the second movable member 231 intersects the second straight line P. That is, during the clamping of the second clamping portion 12, the torque direction of the second elastic telescopic rod acting on the second movable member 231 changes, so that the clamping state can be maintained after the clamping of the second clamping portion 12, and the clamping speed can be slowed down before the clamping.

[0144] During the clamping of the second clamping portion 12, the clamping with the second clamping groove 2311 is achieved. The arrangement of the fourth elastic member 232 can slow down the clamping speed of the second clamping portion 12, which can buffer the noise caused by the impact of the door body 300 on the shell 200 when the door is closed, and can also reduce the clamping noise of the second clamping portion 12.

[0145] In an embodiment of the present application, referring to FIGS. 1, 2A-2E, the locking assembly 20 further comprises a second micro switch 282, which is arranged on the support 21 and located between the first locking mechanism 22 and the second locking mechanism 23. When the second clamping portion 12 is in the locked state, the second movable member 231 triggers the second micro switch 282.

[0146] The connection of the second micro switch 282 and the support 21 includes but is not limited to clamping, screw connection or adhesion, etc.

[0147] The second micro switch 282 can provide a door closing signal when the second clamping portion 12 is successfully clamped, so as to ensure that the cooking operation of the cooking appliance 1000 is performed after the door is closed. Taking a microwave oven as an example, this design can prevent the microwave oven from being started when the oven door is not closed tightly, thereby avoiding the potential harm of microwave leakage to the human body.

[0148] According to the embodiments of the present application, referring to FIGS. 1-3B, a cooking appliance 1000 is provided, which comprises a housing 200, a door body 300, and the door lock device 100 of the above embodiments. The housing 200 has a cavity formed in the interior thereof, and a door opening is provided at the front end of the housing 200 and communicates with the cavity. The door body 300 is configured to cover the door opening, and one end of the door body 300 is pivotally connected to the housing 200. The clamping piece 10 is mounted to the door body 300, and the first clamping portion 11 extends from the door body 300 to the side of the door opening. The locking assembly 20 is mounted in the housing 200. When the door body 300 covers the door opening, the first clamping portion 11 is in the first locking state. When the door body 300 is in the open state, the first clamping portion 11 is in the first unlocking state.

[0149] The cooking appliance 1000 can be, but is not limited to, a microwave oven or an electric oven.

[0150] The cavity is a space for cooking food.

[0151] The clamping piece 10 can be mounted to the door body 300 by means of screws, welding, or riveting.

[0152] Taking the cooking appliance 1000 as a microwave oven for example, the spacing direction of the first clamping portion 11 and the second clamping portion 12 is the vertical direction. In the process of closing the door, the first clamping portion 11 and the second clamping portion 12 are used to engage with the locking assembly 20, which can improve the reliability of closing the door.

[0153] Since the cooking appliance 1000 comprises all the technical features of the above door lock device 100, the effects are the same as described above, and will not be repeated here.

[0154] Referring to FIGS. 3A and 3B, the embodiments of the present application disclose a cooking appliance 1000, which comprises but is not limited to a microwave oven, a steam oven, an electric oven, etc. The cooking appliance 1000 comprises a housing 200, a door body 300, and a door lock device 100. The housing 200 has an opening, and the door body 300 is mounted at the opening of the housing 200. The door body 300 is pivotally connected to the housing 200 to open or close the opening of the housing 200. For example, the door body 300 can be pivotally connected to the housing 200 by a hinge. The door lock device 100 connects the housing 200 and the door body 300, and is used to realize the opening and closing of the door body 300 relative to the housing 200.

[0155] Please refer to FIG. 2I, FIG. 2J and FIG. 3C. In some embodiments, the door lock device 100 comprises a bracket 21, a clamping piece 10, a first movable piece 221 and a damping component 30. The bracket 21 is used to be mounted on the housing 200. The clamping piece 10 is used to be fixed on the door body 300. The door body 300 is rotatably connected with the housing 200. The first movable piece 221 is mounted on the bracket 21 and can rotate relative to the bracket 21. When the first movable piece 221 cooperates with the clamping piece 10, the door body 300 is closed by the clamping piece 10. The damping component 30 comprises a first buffer part 33 and a second buffer part 34 rotatably connected with the first buffer part 33. The first buffer part 33 is mounted on the bracket 21. The second buffer part 34 at least partially extends into the first movable piece 221. During the rotation of the first movable piece 221, the first buffer part 33 rotates relative to the second buffer part 34 to slow down the rotation speed of the first movable piece 221 through the damping between the first buffer part 33 and the second buffer part 34, so as to slow down the closing speed of the door body 300.

[0156] In the door lock device 100 of the embodiments of the present application, during the closing of the door body 300, the damping component 30 can slow down the rotation speed of the first movable piece 221, so as to slow down the closing speed of the door body 300, thereby reducing the noise generated by the collision between the door body 300 and the housing 200 and improving the user experience. In addition, the first buffer part 33 is mounted on the bracket 21, and the second buffer part 34 at least partially extends into the first movable piece 221. In this way, the space of the door lock device 100 can be fully utilized, and the gap between the first movable piece 221 and the bracket 21 is smaller, so that the structure of the door lock device 100 is more compact.

[0157] Specifically, the bracket 21 is a carrier of the first movable piece 221 and other components. The bracket 21 can be mounted on the housing 200 by screws or other fasteners. In order to meet the requirements of the mounting positions and structures of different components, the bracket 21 is generally irregular.

[0158] The clamping piece 10 can be mounted on the door body 300 by welding, threaded connection, clamping or the like, so that the clamping piece 10 is fixed with the door body 300.

[0159] The first buffer part 33 and the second buffer part 34 of the damping component 30 are two mutually rotating parts. Viscous liquid can be arranged in the first buffer part 33 and / or the second buffer part 34. The viscous liquid can provide resistance, so that the first buffer part 33 and the second buffer part 34 have damping during the mutual rotation.

[0160] The first buffer part 33 can be fixed on the support 21 in a manner of interference fit, threaded connection, clamping connection, etc., and the second buffer part 34 can also be installed in the first movable part 221 in a manner of interference fit, threaded connection, clamping connection, etc. The second buffer part 34 can be entirely inserted into the first movable part 221 or partially inserted into the first movable part 221.

[0161] In some embodiments, the damping part 30 can be a one-way damper, which can slow down the closing speed of the door body 300 during the closing process of the door body 300, and does not provide damping and does not hinder the opening of the door body 300 during the opening process of the door body 300, so as to reduce the collision between the door body 300 and the shell 200 and reduce noise when the door body 300 is closed; on the contrary, the damping part 30 does not slow down the opening speed of the door body 300 when the door body 300 is opened, which is more labor-saving and improves user experience.

[0162] In the embodiments of the present application, the opening of the shell 200 refers to the area around the shell 200, and the opening of the shell 200 is used to put food into or take food out of the shell 200.

[0163] Please refer to FIGS. 2I, 2J, and 2K. In some embodiments of the present application, the first movable part 221 is provided with a mounting hole 2214, one end of the second buffer part 34 is inserted into the mounting hole 2214, and the second buffer part 34 cooperates with the hole wall of the mounting hole 2214 to apply a buffer force to the first movable part 221. In this way, the mounting hole 2214 can make the first movable part 221 and the second buffer part 34 have at least partially overlapping space, so that the second buffer part 34 cooperates with the first movable part 221 more compactly.

[0164] Specifically, the mounting hole 2214 can be a non-circular hole, so that after one end of the second buffer part 34 is inserted into the mounting hole 2214, the second buffer part 34 does not rotate relative to the first movable part 221 along the circumference of the mounting hole 2214, so that the second buffer part 34 moves synchronously with the first movable part 221.

[0165] Of course, the mounting hole 2214 can also be a circular hole, in which case one end of the second buffer part 34 can be interference fit with the mounting hole 2214, or the rotation of the second buffer part 34 relative to the mounting hole 2214 is limited by a connecting key or the like.

[0166] Please refer to FIGS. 2I, 2J, and 2K. In some embodiments of the present application, the first movable part 221 is used to rotate between a first position and a second position, and the first movable part 221 drives the door body 300 to close during the rotation from the first position to the second position by the clamping part 10.

[0167] The hole wall of the mounting hole 2214 is formed with a stop portion 2215, when the first movable piece 221 is in the first position, one end of the second buffer portion 34 is arranged in a spaced manner with the stop portion 2215, after the first movable piece 221 is turned by a preset angle from the first position to the second position, one end of the first buffer portion 33 is matched with the stop portion 2215, so as to slow down the rotation speed of the first movable piece 221.

[0168] That is to say, in the initial stage of the closing process of the door body 300, one end of the second buffer portion 34 is arranged in a spaced manner with the stop portion 2215, the first buffer portion 33 and the first movable piece 221 can be relatively rotated, at this time, the damping member 30 has no damping effect on the first movable piece 221, after the first movable piece 221 is turned by a preset angle from the first position to the second position, one end of the second buffer portion 34 is in contact with the stop portion 2215, so that the first movable piece 221 and the second buffer portion 34 can be synchronously rotated relative to the support 21, at this time, the damping member 30 has a damping effect on the first movable piece 221, which slows down the rotation speed of the first movable piece 221, and further slows down the closing speed of the door body 300.

[0169] Specifically, the stop portion 2215 is, for example, a protrusion protruding from the hole wall of the mounting hole 2214 to the center of the mounting hole 2214, the side surface of the protrusion can be in contact with one end of the first buffer portion 33, so that the first movable piece 221 and the second buffer portion 34 are synchronously rotated.

[0170] In some embodiments, the above-mentioned preset angle can be 5-10°, for example, the preset angle can be 5°, 8°, 10°, etc., that is to say, after the first movable piece 221 is turned by a preset angle from the first position to the second position, the damping member 30 starts to have a damping effect on the first movable piece 221.

[0171] Please refer to FIG. 2J, in some embodiments, the support 21 is provided with a mounting hole 217, and the first buffer portion 33 is at least partially arranged in the mounting hole 217. In this way, the first buffer portion 33 is easily mounted on the support 21, and the structure between the damping member 30 and the support 21 can be more compact.

[0172] Please refer to FIG. 2I, 2J, and FIG. 3C, in some embodiments, the door lock device 100 comprises a first elastic member 222, the first elastic member 222 connects the support 21 and the first movable piece 221, and the first elastic member 222 can apply an elastic force to the first movable piece 221 when the first movable piece 221 is matched with the clamping piece 10, so as to rotate the first movable piece 221, and drive the door body 300 to close through the clamping piece 10.

[0173] In this way, the first elastic member 222 can enable the door body 300 to be automatically closed when the first movable member 221 cooperates with the clamping member 10, and the closing process of the door body 300 is relatively labor-saving, and the user experience is improved. In addition, the elastic force applied by the first elastic member 222 to the first movable member is controllable, so that the collision between the door body 300 and the shell 200 during the closing process is relatively light, and the noise generated is relatively small. For example, the first elastic member 222 can drive the first movable member 221 to rotate by pushing, pulling or other medium.

[0174] Referring to FIGS. 2I, 2J and 3C, in some embodiments, the first elastic member 222 includes a torsion spring, a first end 2221 of the torsion spring is connected to the support 21, and a second end 2222 of the torsion spring is connected to the first movable member 221. When the second end 2222 of the torsion spring is located at the first side, the torsion spring applies a pushing force to the first movable member 221 in a direction of rotating towards the first side, the first side being one side of a first straight line Z passing through a rotation center of the first movable member 221 and the first end 2221 of the torsion spring; when the second end 2222 of the torsion spring is located at the second side, the torsion spring applies a pushing force to the first movable member 221 in a direction of rotating towards the second side, the second side being the other side of the first straight line Z passing through the rotation center of the first movable member 221 and the first end 2221 of the torsion spring, the first side and the second side being two opposite sides of the first straight line Z.

[0175] In this way, the torsion spring can store energy during the opening process of the door body 300, and keep the first movable member 221 in a tendency of rotating in the first direction after the door body 300 is opened, so as to keep the first movable member 221 in the first position, and the torsion spring can release the stored energy and make the first movable member 221 rotate in the second direction during the closing process of the door body 300, so as to drive the door body 300 to be closed by the clamping member 10, the first direction being opposite to the second direction, and the first direction being a direction from the second position to the first position.

[0176] The first movable member 221 is driven to rotate by the torsion spring, so that the structure of the first elastic member 222 is simple and easy to implement, and the cost of the torsion spring is relatively low, so that the cost of the first elastic member 222 can be reduced.

[0177] Specifically, when the first movable member 221 is kept in the first position, the support 21 provides support for the first movable member 221, so as to limit the first movable member 221 from continuing to rotate in the first direction. For example, when the first movable member 221 is in the first position, the first movable member 221 can abut against the support 21.

[0178] It should be noted that the first straight line Z passing through the rotation center of the first movable member 221 and the first end 2221 of the torsion spring is a virtual first straight line.

[0179] As shown in FIG. 2L, during the process of opening the door body 300, the clamping piece 10 is engaged with the first movable piece 221, and the clamping piece 10 can drive the first movable piece 221 to rotate. At this time, the torsional spring is stored with energy. After the door body 300 is opened and the clamping piece 10 is disengaged from the first movable piece 221, the second end 2222 of the torsional spring is located on the side of the first straight line Z away from the door body 300, so that the torsional spring applies an action force to the first movable piece 221 in the first direction of rotation, which makes the first movable piece 221 act on the support 21 to keep the first movable piece 221 in a static state.

[0180] As shown in FIG. 2M and FIG. 2N, during the process of closing the door body 300, first, the door body 300 (or the handle on the door body 300) is pushed by the user. Under the condition that the user continuously pushes the door body 300 or due to the inertia generated after the user pushes the door body 300, the door body 300 drives the clamping piece 10 to move in the closing direction. The clamping piece 10 extends into the support 21 and is engaged with the first movable piece 221. With the movement of the clamping piece 10, the clamping piece 10 drives the first movable piece 221 to rotate. After the first movable piece 221 rotates through a predetermined angle in the second direction of rotation, the second end 2222 of the torsional spring is located on the side of the first straight line Z away from the door body 300. The torsional spring releases the stored energy and drives the first movable piece 221 to rotate in the second direction of rotation, so that the first movable piece 221 pulls the clamping piece 10 to drive the door body 300 to rotate until it is completely closed.

[0181] It can be understood that the first direction of rotation of the first movable piece 221 is the direction of rotation of the first movable piece 221 during the process of switching the door body 300 from the closed state to the open state, for example, the counterclockwise direction shown in FIG. 2L. It should be pointed out that in other embodiments, the first elastic member 222 can be a tensile spring, an electromagnetic driving component, etc.

[0182] Please refer to FIG. 2J and FIG. 2L. In some embodiments, the door lock device 100 further comprises a second elastic member 223 arranged on the support 21. In the case that the first movable piece 221 is in the first position, the second elastic member 223 applies an elastic force to the first movable piece 221 in the direction of rotating towards the second position.

[0183] In this way, the elastic force applied by the second elastic member 223 to the first movable piece 221 is opposite to the direction of the force or component force applied by the torsional spring to the first movable piece 221. During the process of closing the door body 300, only a small pushing force needs to be provided to the door body 300. With the assistance of the second elastic member 223, the clamping piece 10 can easily overcome the resistance of the torsional spring, so that the door body 300 is more easily closed, and the user experience is improved.

[0184] Specifically, the second elastic member 223 includes, but is not limited to, a coil spring, an elastic block, etc., and the shape of the second elastic member 223 is, for example, substantially a circular truncated cone. The second elastic member 223 can be fixed on the bracket 21 by means of clamping.

[0185] It should be noted that, in the case that the first movable member 221 is in the first position, the force exerted by the first elastic member 222 on the first movable member 221 can be greater than the force exerted by the second elastic member 223 on the first movable member 221, so that the first movable member 221 can be kept in the first position.

[0186] Referring to FIGS. 2J and 2L, in some embodiments, the clamping member 10 includes a mounting portion 13 and a first clamping portion 11 provided on the mounting portion 13, the first clamping portion 11 is formed with a clamping hook, the first movable member 221 is formed with a first clamping groove 2211, and the first movable member 221 can be driven by the first clamping portion 11 to close the door body 300 when the clamping hook is clamped with the first clamping groove 2211.

[0187] In this way, the clamping hook of the first clamping portion 11 is clamped with the first clamping groove 2211, so that the first movable member 221 avoids disengaging from the clamping member 10 during rotation, thereby improving the stability of the first movable member 221 driving the door body 300 to close by the first clamping portion 11.

[0188] It should be noted that the clamping point of the clamping hook and the first clamping groove 2211 can change with the rotation of the first movable member 221, and during the closing of the door body 300, the clamping hook and the first clamping groove 2211 remain clamped as the clamping point changes; during the opening of the door body 300, the clamping hook and the first clamping groove 2211 can be separated as the clamping point changes so that the door body 300 can be fully opened.

[0189] Referring to FIGS. 2J and 2L, in some embodiments, the clamping member 10 further includes a second clamping portion 12 provided on the mounting portion 13, the second clamping portion 12 is arranged in a spaced manner with the first clamping portion 11, and the door lock device 100 further includes a second movable member 231 rotatably arranged on the bracket 21, the second clamping portion 12 clamps with the second movable member 231 when the door body 300 is closed.

[0190] In this way, the second clamping portion 12 clamps with the second movable member 231 when the door body 300 is closed, which can improve the stability of the door body 300 closing and reduce the risk of the cooking appliance 1000 being abnormally opened during normal operation.

[0191] Specifically, as shown in FIG. 2J, the second movable piece 231 can be provided with a pivot hole 2312, and the support 21 can be provided with a pivot shaft 216, and the second movable piece 231 can be sleeved on the pivot shaft 216 through the pivot hole 2312, so as to be rotationally connected with the support 21. The second clamping part 12 is similar to a sheet-shaped piece, and the second clamping part 12 can be formed with a clamping hole 125, and the second movable piece 231 can be provided with a clamping block, and the clamping hole 125 can be matched with the clamping block, so as to clamp the second clamping part 12 and the second movable piece 231.

[0192] In the embodiments of the present application, the mounting part 13, the first clamping part 11 and the second clamping part 12 are integrated structures, for example, the mounting part 13, the first clamping part 11 and the second clamping part 12 can be formed by pressure casting or the like. Of course, the mounting part 13, the first clamping part 11 and the second clamping part 12 are separate structures, and the first clamping part 11 and the second clamping part 12 can be fixed on the mounting part 13 by screws or the like.

[0193] Please refer to FIG. 2J and FIG. 2L, in some embodiments, the door lock device 100 further comprises a fourth elastic piece 232, the fourth elastic piece 232 connects the second movable piece 231 and the support 21, and the fourth elastic piece 232 is used to apply a reset elastic force to the second movable piece 231 when the second clamping part 12 is separated from the second movable piece 231.

[0194] In this way, the fourth elastic piece 232 enables the second movable piece 231 to reset after rotation, in addition, the fourth elastic piece 232 applies a pushing force to the door body 300 through the second movable piece 231, so that the door body 300 can be more labor-saving when opening, and the user experience is improved.

[0195] Specifically, the fourth elastic piece 232 includes but is not limited to torsion springs, tension springs, motor screw components and the like. When the fourth elastic piece 232 is a torsion spring, one end of the torsion spring can be clamped into the support 21, and the other end can be clamped into the second movable piece 231.

[0196] Please refer to FIG. 2J, FIG. 2L and FIG. 3C, in some embodiments, the door lock device 100 can further comprise a micro switch 28 arranged on the support 21, and when the micro switch 28 is triggered, it can be confirmed that the door body 300 is in a closed state.

[0197] In summary, in one embodiment of the present application, the process of closing the door of the cooking appliance 1000 is as follows:

[0198] [According to the rules 91 correction 02.04.2025] please combine Figure 2L-2O, the door body 300 exerts a pushing force, the door body 300 moves towards the bracket 21, the first clamping part 11 pushes the first movable piece 221 to rotate, the second clamping part 12 pushes the second movable piece 231 to rotate, after the first movable piece 221 rotates through a predetermined angle in the second direction, the damping part 30 cooperates with the first movable piece 221, the second end 2222 of the torsion spring is located on the side of the first straight line Z away from the door body 300, the torsion spring releases the stored force and drives the first movable piece 221 to rotate in the second direction, so that the first movable piece 221 pulls the first clamping part 11 to drive the door body 300 to continue to close, and the damping part 30 can slow down the closing speed of the door body 300.

[0199] It can be understood that the door opening process of the cooking appliance 1000 is opposite to the door closing process, and specifically as follows:

[0200] [According to the rules 91 correction 02.04.2025] please combine Figure 2L-2O, after the cooking appliance 1000 completes the work, pull the door body 300, the first clamping part 11 drives the first movable piece 221 to rotate, the second clamping part 12 drives the second movable piece 231 to rotate, in this process, the torsion spring stores energy, after the first clamping part 11 and the first movable piece 221 disengage, the second clamping part 12 and the second movable piece 231 disengage, the door body 300 is completely opened, the second end 2222 is located on the side of the first straight line Z close to the door body 300, so that the torsion spring applies a force to the first movable piece 221 in the first direction, the force makes the first movable piece 221 remain in the first position.

[0201] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A door lock device for locking a door body and a housing of a cooking appliance, wherein, The application relates to a door lock, comprising: a clamping piece for being mounted on the door body, the clamping piece comprising a first clamping part; a locking assembly comprising a bracket, a first locking mechanism and a damping component, the bracket being used for being connected with the shell, the first locking mechanism being movably arranged on the bracket, the bracket being provided with a clamping end, the first locking mechanism having a first clamping groove, the first clamping part having a first locking state of entering the clamping end and being clamped with the first clamping groove, and a first unlocking state of being separated from the first clamping groove and exiting the clamping end, the bracket being provided with a first accommodating space, the damping component having a body part, the body part being located in the first accommodating space, the body part being arranged to be movable in the first accommodating space and having a first limit position and a second limit position; in the process of switching the first clamping part from the first unlocking state to the first locking state, the body part moves to the first limit position in the first accommodating space and provides the first locking mechanism with a damping force for slowing down the clamping of the first clamping part into the first clamping groove; when the first clamping part is in the first unlocking state, the body part is located at the second limit position.

2. The door lock device according to claim 1, wherein the first locking mechanism has a first state for slowing down the clamping of the first clamping part into the first clamping groove, and a second state for keeping the first clamping part clamped with the first clamping groove; after the first locking mechanism is switched to the first state, the damping force provided by the body part to the first locking mechanism is zero; in the process of switching the first clamping part from the first unlocking state to the first locking state, the damping force increases from zero.

3. The door lock device according to claim 1 or 2, wherein the first locking mechanism comprises: a first movable piece rotatably connected with the bracket and drivingly connected with the damping component, the first movable piece having the first clamping groove; a first elastic piece, a first end of the first elastic piece being rotatably connected with the bracket and having a first rotation center, a second end of the first elastic piece being rotatably connected with the first movable piece and having a second rotation center, a center of the rotatable connection of the first movable piece with the bracket being a third rotation center, on a first cross section of the first movable piece, a straight line passing through the third rotation center and the second rotation center being a first straight line, in the process of switching the first clamping part from the first unlocking state to the first locking state, a trajectory curve of the second rotation center intersects with the first straight line, and an axis of the rotation of the first movable piece relative to the bracket is perpendicular to the first cross section.

4. The door latch arrangement of claim 3, wherein, The first movable member has a partially convex circular arc surface, an axis of rotation of the first movable member relative to the support coincides with an axis of the circular arc surface, the circular arc surface is provided with a plurality of engagement teeth arranged continuously along a circumferential direction of the circular arc surface, the damping component includes a damper and a rack, the damper has the body part and a movable end, the movable end is movable relative to the body part in a first direction, the rack is in sliding connection with the support in the first direction, the rack is in engagement with the engagement teeth and is arranged to be driven to move linearly relative to the support along a length direction of the rack, the movable end is connected with the rack, and the axis of rotation of the first movable member relative to the support is perpendicular to the first direction.

5. The door latch arrangement of claim 4, wherein, The support is provided with a first stop portion and a second stop portion, the first stop portion and the second stop portion are arranged at intervals in the first direction, a dimension of the body part in the first direction is H1, a dimension between the first stop portion and the second stop portion is H2, and H1 is less than H2. The damper is a one-way damper.

6. The door latch arrangement of claim 3, wherein, The first locking mechanism further includes a second elastic member, the second elastic member is arranged on the support, the second elastic member is in abutment with the first movable member when the first clamping portion is in the first unlocking state, and the second elastic member is in a compressed state. The locking assembly further includes a first micro switch, the first micro switch is arranged on the support, and the first movable member triggers the first micro switch when the first clamping portion is in the locked state.

7. The door latch arrangement of claim 3, wherein, The first movable member includes a rotating hook arm, the locking assembly further includes a blocking limiting member, the blocking limiting member is located on a side of the first movable member having the first clamping groove, the blocking limiting member is movably arranged on the support, the blocking limiting member has a limiting clamping groove, the limiting clamping groove is in clamping connection with the rotating hook arm when the first clamping portion exits from the clamping end, so as to limit rotation of the first movable member relative to the support, and the blocking limiting member is arranged to be driven by the first clamping portion to separate the limiting clamping groove from the rotating hook arm.

8. The door latch arrangement of claim 7, wherein, The blocking limiting member is in rotational connection with the support, the locking assembly further includes a third elastic member, the third elastic member is located on a side of the blocking limiting member away from the first movable member, the third elastic member is in abutment with the support and the blocking limiting member respectively, and a spring force of the third elastic member can keep the limiting clamping groove in clamping connection with the rotating hook arm when the rotating hook arm is in the clamping state.

9. The door latch arrangement of claim 1 or 2, wherein, The clamping piece further comprises a second clamping portion, which is arranged in a first direction and spaced apart from the first clamping portion, and the locking assembly further comprises a second locking mechanism, which is arranged in the first direction and spaced apart from the first locking mechanism, and the second locking mechanism is movably connected to the support, and the second locking mechanism has a second clamping groove, and the second clamping portion has a second locking state of entering the second clamping groove from the clamping end and being clamped with the second clamping groove, and a second unlocking state of being separated from the second clamping groove and exiting from the clamping end, and the first direction is perpendicular to the clamping direction, and when the second locking mechanism is in the second unlocking state, the second locking mechanism has a tendency to slow down the second clamping portion entering the second clamping groove, and when the second clamping portion is in the locking state, the second locking mechanism has a tendency to block the second clamping portion from being separated from the second clamping groove.

10. The door latch arrangement of claim 9, wherein, The second locking mechanism comprises: a second movable piece, which is rotatably connected to the support, and the second movable piece has the second clamping groove; a fourth elastic piece, a first connecting end of the fourth elastic piece is connected to the support, and a second connecting end of the fourth elastic piece is connected to the second movable piece, and when the second clamping portion is in the second unlocking state, the fourth elastic piece has a tendency to slow down the second clamping portion entering the second clamping groove, and when the second clamping portion is in the second locking state, the fourth elastic piece has a tendency to keep the second clamping portion clamped with the second clamping groove.

11. The door latch arrangement of claim 10, wherein, The first connecting end and the support have a first rotation center, the second connecting end and the second movable piece have a second rotation center, and the second movable piece has a third rotation center relative to the support, and on a second cross section of the second movable piece, a straight line passing through the third rotation center and the first rotation center is a second straight line, and when the second clamping portion is switched from the second unlocking state to the second locking state, a locus curve of the second rotation center intersects the second straight line, and an axis of rotation of the second movable piece relative to the support is perpendicular to the second cross section; and / or, the locking assembly further comprises a second micro switch, which is arranged on the support and located between the first locking mechanism and the second locking mechanism, and when the second clamping portion is in the locking state, the second movable piece triggers the second micro switch.

12. A door locking device wherein, It comprises: a support, which is arranged at an opening of a shell; a clamping piece, which is arranged on a door body, the door body is arranged at the opening of the shell, and the door body is rotatably connected to the shell to open or close the opening of the shell; a first movable piece, which is arranged on the support and can rotate relative to the support, and the first movable piece is used to cooperate with the clamping piece to drive the door body to close during closing of the door body; and The damping component comprises a first buffering part and a second buffering part rotationally connected with the first buffering part, the first buffering part is installed on the support, the second buffering part at least partially extends into the first movable part, during rotation of the first movable part, the first buffering part rotates relative to the second buffering part to slow down the rotation speed of the first movable part through damping between the first buffering part and the second buffering part, so as to slow down the closing speed of the door body.

13. The door latch arrangement of claim 12, wherein, The first movable part is provided with a mounting hole, one end of the second buffering part is inserted into the mounting hole, and the second buffering part cooperates with the hole wall of the mounting hole to apply a buffering force to the first movable part.

14. The door latch arrangement of claim 13, wherein, The first movable part is used to rotate between a first position and a second position, and the first movable part drives the door body to close through the clamping part during rotation from the first position to the second position. The hole wall of the mounting hole is formed with a stop part, one end of the second buffering part is spaced apart from the stop part when the first movable part is located at the first position, and one end of the first buffering part cooperates with the stop part after the first movable part rotates by a preset angle from the first position to the second position, so that the damping component slows down the rotation speed of the first movable part.

15. The door latch arrangement of claim 12, wherein, The support is provided with an assembly hole, and the first buffering part is at least partially arranged in the assembly hole.

16. The door latch arrangement of claim 12, wherein, The door lock device comprises a first elastic member, the first elastic member connects the support and the first movable part, and the first elastic member can apply an elastic force to the first movable part when the first movable part cooperates with the clamping part, so that the first movable part rotates to drive the door body to close through the clamping part.

17. The door latch arrangement of claim 16, wherein, The first elastic member comprises a torsion spring, a first end of the torsion spring is connected with the support, and a second end of the torsion spring is connected with the first movable part. When the second end of the torsion spring is located at a first side, the torsion spring applies a pushing force to the first movable part towards rotation of the first side, the first side being one side of a first straight line passing through a rotation center of the first movable part and a first end of the torsion spring. When the second end of the torsion spring is located at a second side, the torsion spring applies a pushing force to the first movable part towards rotation of the second side, the second side being the other side of the first straight line, the first side and the second side being two opposite sides of the first straight line.

18. The door latch arrangement of claim 17, wherein, The first movable part is used to rotate between a first position and a second position, and the first movable part drives the door body to close through the clamping part during rotation from the first position to the second position. The door lock device further comprises a second elastic member arranged on the support, and the second elastic member applies a pushing force to the first movable part towards rotation of the second position when the first movable part is located at the first position.

19. The door latch arrangement of claim 12, wherein, The clamping piece comprises a mounting portion and a first clamping portion provided on the mounting portion, the first clamping portion is formed with a clamping hook, the first movable piece is formed with a first clamping groove, and the first movable piece can be driven by the first clamping portion to close the door body when the clamping hook and the first clamping groove are clamped.

20. The door latch arrangement of claim 19, wherein, The clamping piece further comprises a second clamping portion provided on the mounting portion, the second clamping portion is spaced apart from the first clamping portion, and the door lock device further comprises a second movable piece rotatably provided on the support, the second clamping portion and the second movable piece are clamped when the door body is closed.

21. The door latch arrangement of claim 20, wherein, The door lock device further comprises a fourth elastic member, the fourth elastic member connects the second movable piece and the support, and the fourth elastic member is used to apply a restoring elastic force to the second movable piece when the second clamping portion and the second movable piece are separated.

22. A cooking appliance, wherein, Comprise: A shell, an inner portion of the shell is formed with a cavity, and a front end of the shell is provided with a door opening in communication with the cavity; A door body, the door body is configured to cover the door opening, and one end of the door body is pivotally connected with the shell; The door lock device according to any one of claims 1-11, the clamping piece is mounted on the door body, and the first clamping portion extends from a side of the door body towards the door opening, the locking assembly is mounted in the shell, and the first clamping portion is in the first locking state when the door body covers the door opening, and the first clamping portion is in the first unlocking state when the door body is in the open state.

23. A cooking appliance, wherein, Comprise: A shell; A door body, the door body is rotatably connected with the shell; And The door lock device according to any one of claims 12-21, the support is mounted at the opening of the shell, and the clamping piece is provided on the door body.

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