Door lock device and cooking electric appliance

Abstract

The utility model discloses a door lock device and a cooking electric appliance. The door lock device comprises a clamping piece and a locking assembly, the clamping piece is used for being installed on a door body, and the clamping piece comprises a first clamping part; the locking assembly comprises a support, a first locking mechanism and a damping part, the support is used for being connected with the shell, the first locking mechanism is movably arranged on the support, the support is provided with a clamping end, the first locking mechanism is provided with a first clamping groove, and the first clamping part has a first locking state in which the first clamping part enters from the clamping end and is clamped with the first clamping groove; in the first unlocking state, the support is separated from the first clamping groove and retreats from the clamping-in end, and the support is provided with a first containing space. When the body part moves to the first limit position, the damping force is increased from zero, that is, when the first clamping part is about to be locked, the damping force is provided, at the moment, the door body is close to the shell and about to collide with the shell, the buffering effect can be achieved, the clamping speed of the first clamping part can be reduced, and therefore the sound generated when the door body collides with the shell is reduced, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a door lock device and a cooking electric appliance. BACKGROUND

[0002] In the related art, a cooking electric appliance has a shell and a door body, the door body is rotationally installed on the shell. The door body can be opened or closed under the action of an external force. In the process of closing the door body, the door body is prone to colliding with the shell and generating a large noise, affecting the user experience. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the present application provides a door lock device and a cooking electric appliance, which can improve the noise after the door body is closed.

[0004] 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:

[0005] A clamping piece for being installed on the door body, the clamping piece comprising a first clamping portion;

[0006] A locking assembly comprising a bracket, a first locking mechanism and a damping component, the bracket being configured to be 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 portion 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 from the clamping end, the bracket being provided with a first accommodating space, the damping component having a body portion, the body portion being located in the first accommodating space, the body portion being configured to move in the first accommodating space and having a first limit position and a second limit position;

[0007] In the process of switching the first clamping portion 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 slow down the clamping of the first clamping portion into the first clamping groove;

[0008] When the first clamping portion is in the first unlocking state, the body portion is located at the second limit position.

[0009] In the process of closing the door, the body portion 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, the damping force is provided when the first clamping portion is about to be locked. At this time, the door body and the shell are close to each other and are about to collide, which can play a buffering role to slow down the clamping speed of the first clamping portion, thereby reducing the sound of the door body colliding with the shell and improving the user experience.

[0010] In an embodiment of the present application, the first locking mechanism has a first state of slowing down the first clamping part from entering the first clamping groove, and has a second state of keeping the first clamping part clamped with the first clamping groove;

[0011] After the first locking mechanism switches to the first state, the damping force provided by the body part to the first locking mechanism is zero;

[0012] During the process of switching the first clamping part from the first unlocking state to the first locking state, the damping force increases from zero.

[0013] In an embodiment of the present application, the first locking mechanism comprises:

[0014] The first movable part is rotationally connected with the support and drivingly connected with the damping part, and the first movable part has the first clamping groove;

[0015] The first elastic member has a first end rotationally connected with the support and has a first rotation center, and has a second end rotationally connected with the first movable part and has a second rotation center, the center of the rotational connection of the first movable part with the support is a third rotation center, on the first cross section of the first movable part, the 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 with the first straight line, and the axis of the rotation of the first movable part relative to the support is perpendicular to the first cross section.

[0016] In an embodiment of the present application, the first movable part has a partially convex circular arc surface, the axis of the rotation of the first movable part 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 comprises 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 moves linearly relative to the support, the movable end of the damper is connected with the rack, and the axis of the rotation of the first movable part relative to the support is perpendicular to the first direction.

[0017] In an embodiment of the present application, the support is provided with a first stop part and a second stop part, the first stop part and the second stop part are arranged at intervals along the first direction, the size of the body part along the first direction is H1, the size between the first stop part and the second stop part is H2, and H1 is less than H2.

[0018] In an embodiment of the present application, the damper is a one-way damper.

[0019] In an embodiment of the present application, the first locking mechanism further comprises 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 part, and the second elastic member is in a compressed state;

[0020] In an embodiment of the present application, the locking assembly further comprises a first micro switch, the first micro switch is arranged on the bracket, and the first movable piece triggers the first micro switch when the first clamping part is in the locked state.

[0021] In an embodiment of the present application, the first movable piece comprises a rotating hook arm, and the locking assembly further comprises a blocking limiting piece, the blocking limiting piece is located on the side of the first movable piece having the first clamping groove, the blocking limiting piece is movably arranged on the bracket, the blocking limiting piece has a limiting clamping groove, the limiting clamping groove is in engagement with the rotating hook arm when the first clamping part exits from the clamping end, so as to limit the rotation of the first movable piece relative to the bracket, and the blocking limiting piece is arranged to be driven by the first clamping part to separate the limiting clamping groove from the rotating hook arm.

[0022] In an embodiment of the present application, the blocking limiting piece is rotatably connected with the bracket, and the locking assembly further comprises a third elastic piece, the third elastic piece is located on the side of the blocking limiting piece away from the first movable piece, and the third elastic piece abuts against the bracket and the blocking limiting piece respectively, the elastic force of the third elastic piece can keep the limiting clamping groove in engagement with the rotating hook arm when the rotating hook arm is in the engagement state.

[0023] In an embodiment of the present application, the clamping piece further comprises a second clamping part, the second clamping part is arranged in the first direction away from the first clamping part, 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 bracket, the second locking mechanism has a second clamping groove, the second clamping part has a second locked state of entering into engagement with the second clamping groove from a clamping end and a second unlocked state of sequentially exiting from the second clamping groove and the clamping end, the first direction is perpendicular to the clamping direction, the second locking mechanism has a tendency to slow down the second clamping part entering into the second clamping groove when the second locking mechanism is in the second unlocked state, and the second locking mechanism has a tendency to block the second clamping part from separating from the second clamping groove when the second clamping part is in the locked state.

[0024] In an embodiment of the present application, the second locking mechanism comprises:

[0025] a second movable piece, the second movable piece is rotatably connected with the bracket, and the second movable piece has a second clamping groove;

[0026] a fourth elastic piece, a first connecting end of the fourth elastic piece is connected with the bracket, and a second connecting end of the fourth elastic piece is connected with the second movable piece, the fourth elastic piece has a tendency to slow down the second clamping part entering into the second clamping groove when the second clamping part is in the second unlocked state, and the fourth elastic piece has a tendency to keep the second clamping part in engagement with the second clamping groove when the second clamping part is in the second locked state.

[0027] In an embodiment of the present application, the first connecting end has a first rotation center with the bracket, the second connecting end has a second rotation center with the second movable member, the second movable member has a third rotation center with the bracket, 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 part 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 member with respect to the bracket is perpendicular to the second cross section.

[0028] In an embodiment of the present application, the locking assembly further comprises a second micro switch, the second micro switch is arranged on the bracket and located between the first locking mechanism and the second locking mechanism, and the second movable member triggers the second micro switch when the second clamping part is in the locking state.

[0029] In a second aspect, the present application provides a cooking appliance, comprising:

[0030] a shell, an inner part of the shell forms a cavity, and a front end of the shell is provided with a door opening communicating with the cavity;

[0031] a door body configured to cover the door opening, one end of the door body being pivotally connected to the shell;

[0032] The door lock device of the first aspect, the clamping member is mounted on the door body, and the first clamping part extends from a side of the door body toward the door opening, the locking assembly is mounted in the shell, and the first clamping part is in the first locking state when the door body covers the door opening, and the first clamping part is in the first unlocking state when the door body is in the open state.

[0033] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, and to be implemented in accordance with the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0034] 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 intended to depict only preferred embodiments of the application, and therefore should not be considered to narrow the scope of the present application in any way. Instead, they are included to provide illustration of the preferred embodiments of the present application. In the drawings:

[0035] Figure 1 It is an explosion view of a door lock device according to an embodiment of the present application;

[0036] Figure 2A It is a side view of a first perspective view of a door lock device according to an embodiment of the present application in an unlocking state;

[0037] Figure 2BFigure 1 is a side view of a first perspective of a door lock device in a carding process according to an embodiment of the present application;

[0038] Figure 2C Figure 2 is a side view of a second perspective of the door lock device in the carding process according to the embodiment of the present application; Figure 2B

[0039] Figure 2D Figure 3 is a side view of a first perspective of the door lock device in a locked state according to the embodiment of the present application;

[0040] Figure 2E Figure 4 is a side view of a second perspective of the door lock device in the locked state according to the embodiment of the present application; Figure 2D

[0041] Figure 5 is a side view of a first perspective of a door lock device in a carding process according to another embodiment of the present application; Figures 2F-2H

[0042] Figure 6 is a perspective view of a cooking appliance according to an embodiment of the present application; Figure 3A

[0043] Figure 7 is a partial perspective view of the cooking appliance according to the embodiment of the present application. Figure 3B

[0044] The reference signs in the detailed description are as follows:

[0045] 1000, cooking appliance;

[0046] 100, door lock device;

[0047] 200, housing;

[0048] 300, door body;

[0049] 10, carding member; 11, first carding part; 111, first hook head; 112, first hook handle; 113, first avoiding slot; 12, second carding part; 121, second hook head; 122, second hook handle; 123, carding interface; 124, second avoiding slot; 13, mounting part;

[0050] 20, locking assembly; 21, bracket; 211, carding end; 212, first limiting part; 213, second limiting part; 214, first stop part; 215, second stop part; 22, first locking mechanism; 221, first movable member; 2211, first carding slot; 22111, avoiding part; 22112, first guide surface; 2212, engaging tooth; 2213, rotating hook arm; 222, first elastic member; 2221, first end; 2222, second end; 223, second elastic member; 224, sliding member; 2241, inclined surface; 225, elastic telescopic member; ​​

[0051] 23, second locking mechanism; 231, second movable piece; 2311, second clamping groove; 232, fourth elastic piece; 2321, first connecting end; 2322, second connecting end; 25, blocking limiting piece; 251, limiting clamping groove; 252, second guide surface; 26, third elastic piece; 27, cover plate; 28, first micro switch; 29, second micro switch;

[0052] 30, damping component; 31, rack; 32, damper; 321, body part; 322, movable end;

[0053] X, clamping direction; Y, first direction; Z, first straight line; P, second straight line. DETAILED DESCRIPTION

[0054] 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.

[0055] 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 terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "include" and "have" and any variations thereof used in the specification and the claims and the above description of drawings are intended to cover the inclusion not the exclusion of one or more elements.

[0056] 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 and specifically limited.

[0057] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments 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.

[0058] 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 means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0059] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0060] 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, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do 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 a limitation on the embodiments of the present application.

[0061] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, 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.

[0062] According to the embodiments of the present application, a door lock device 100 is provided, please refer to Figures 1-3BThe door lock device 100 is used for locking the door body 300 of the cooking appliance 1000 and the shell 200, and comprises a clamping piece 10 and a locking assembly 20. The clamping piece 10 is used for being mounted on the door body 300, and comprises a first clamping part 11. The locking assembly 20 comprises a bracket 21, a first locking mechanism 22 and a damping component 30. The bracket 21 is used for being connected with the shell 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 part 11 has a first locking state of entering the clamping end 211 and being clamped with the first clamping groove 2211, and a first unlocking state of being separated from the first clamping groove 2211 and exiting from the clamping end 211, the bracket 21 is provided with a first accommodating space, and the damping component 30 has a body part 321, which is located in the first accommodating space and is arranged to be movable in the first accommodating space and has a first limit position and a second limit position. In the process of switching the first clamping part 11 from the first unlocking state to the first locking state, the body part 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 part 11 into the first clamping groove 2211. When the first clamping part 11 is in the first unlocking state, the body part 321 is located at the second limit position.

[0063] The damping component 30 and the first locking mechanism 22 can form a crank slider mechanism or a gear and rack 31 transmission mechanism. The damping component 30 acts as a driven component and is driven to move by the movement of the first locking mechanism 22 to realize the movement of the body part 321 in the first accommodating space.

[0064] The door body 300 and the shell 200 can be clamped by the door lock device 100. Specifically, one end of the door body 300 is rotatably connected with the shell 200, and the other end of the door body 300 is locked with the shell 200 by the door lock device 100 to realize the opening and closing of the door body 300. The door lock device 100 can also be provided in multiple numbers, and the door body 300 is locked with the shell 200 by the door lock device 100 in a separable manner.

[0065] The movement of the first locking mechanism 22 relative to the bracket 21 can be linear movement or rotation.

[0066] The first clamping part 11 can be a first hook body structure, a T-shaped rod or an L-shaped rod structure, or a rod-shaped structure with a clamping protrusion at the end.

[0067] The first limit position and the second limit position are two different positions at which the body part 321 abuts against the bracket 21.

[0068] 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.

[0069] The bracket 21 can be arranged on the shell 200 by means of screwing, clamping, bonding or welding.

[0070] As an example, please refer to Figure 2F The first locking mechanism 22 includes a sliding part 224 and an elastic expansion part 225. The sliding part 224 is slidably connected with the bracket 21 along a first direction Y. The damping part 30 is located above the sliding part 224, and 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 inclined surface 2241 and the clamping end 211 at an arbitrary position along the clamping direction X of the first clamping part 11 is in an increasing trend. The inclined surface 2241 is extruded by the first clamping part 10, so that the sliding part 224 moves upward, and 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 a first limit position and is compressed. 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.

[0071] 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, so as to reduce the sound of the collision between the door body 300 and the shell 200, and to improve the user experience.

[0072] In an embodiment of the present application, please refer to Figures 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 has a second state of keeping the first clamping part 11 clamped with the first clamping groove 2211. After 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 process of switching the first clamping part 11 from the first unlocking state to the first locking state, the damping force increases from zero. Figure 2B and Figure 2C are side views of the door lock device 100 in different orientations when the body part 321 is in the same position in the first accommodating space, Figure 2B and Figure 2C exemplarily show a structure diagram in which the first locking mechanism 22 is in the first state and the damping force is zero, Figure 2D and Figure 2E show a structure diagram in which the first locking mechanism 22 is in the second state and the damping force is greater than zero.

[0073] During the process of closing the door, when the first clamping part 11 pushes the first locking mechanism 22 to move, the force of the first locking mechanism 22 itself needs to be overcome, 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 wall on one hand, and make the closing more smooth on the other hand.

[0074] In an embodiment of the present application, please refer to Figures 2A-2E and Figure 2G The first locking mechanism 22 includes a first movable part 221 and a first elastic part 222. The first movable part 221 is rotationally connected with the bracket 21 and is drivingly connected with the damping component 30, and the first movable part 221 has a first clamping groove 2211. The first end 2221 of the first elastic part 222 is rotationally connected with the bracket 21 and has a first rotation center, and the second end 2222 of the first elastic part 222 is rotationally connected with the first movable part 221 and has a second rotation center. The center of the rotational connection of the first movable part 221 with the bracket 21 is a third rotation center. On the first cross section of the first movable part 221, the 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 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.

[0075] The damping component 30 is rotationally connected with the first movable member 221, and can be engaged with the first movable member 221 through the rack 31.

[0076] As an example, the damping component 30 comprises a damper 32, an end of the damper 32 is rotationally connected with the first movable member 221, and the end of the damper 32 away from the first movable member 221 is connected with the bracket 21.

[0077] The first elastic member 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 comprise a first rod, a second rod and a first compression spring. The first rod is a hollow rod, and a part of the second rod is arranged in a 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. Figures 2A-2E As an example, the first elastic member 222 is a torsion spring.

[0078] As an example, please refer to Figure 2G The first elastic member 222 can be an elastic telescopic rod, one end of the elastic telescopic rod is rotationally connected with the bracket 21, and the other end of the elastic telescopic rod is rotationally connected with the first movable member 221. In the same plane perpendicular to the rotation axis of the first elastic member 222 and the bracket 21, the center of the rotation connection between the elastic telescopic rod and the bracket 21 is a first rotation center. The center of the rotation connection between the elastic telescopic rod and the first movable member 221 is a second rotation center. In the clamping process, the first movable member 221 rotates, and the first elastic telescopic rod swings relative to the bracket 21.

[0079] The first elastic member 222 can reduce the clamping speed of the first clamping part 11, which can buffer the noise caused by the impact between the door body 300 and the shell 200 when the door body 300 is closed, and can provide torque for the first movable member 221 to maintain the clamping of the first clamping part 11.

[0080] In an embodiment of the present application, please refer to Figure 1 and Figure 2AThe first movable part 221 has a partially convex circular arc surface, an axis of rotation of the first movable part 221 relative to the support 21 coincides with an axis of the circular arc surface, the circular arc surface is provided with a plurality of meshing teeth 2212 arranged continuously along a circumferential direction of the circular arc surface, the damping part 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 is movable relative to the body part 321 along a first direction Y, the rack 31 is in sliding connection with the support 21 along the first direction Y, the rack 31 is in meshing connection with the meshing teeth 2212, along a length direction of the rack 31, the rack 31 is arranged to be driven and move 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 part 221 relative to the support 21 is perpendicular to the first direction Y.

[0081] For example, refer to Figure 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, so as to realize the hanging connection 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.

[0082] For example, refer to Figure 1 The support 21 is provided with a cover plate 27, the cover plate 27 is detachably connected with the support 21, and can be one or both of clamping or screw connection, and cooperates with the support 21 to define a guide groove, a length direction of the guide groove can be the same as the first direction Y, the rack 31 and the damper 32 are arranged in the guide groove, and the damper 32 abuts against the end of the rack 31.

[0083] In the clamping process of the first clamping part 11, the first clamping part 11 drives the first movable part 221 to rotate, 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.

[0084] In an embodiment of the present application, refer to Figure 2C The support 21 is provided with a first stop part 214 and a second stop part 215, the first stop part 214 and the second stop part 215 are arranged at intervals along the first direction Y, a dimension of the body part 321 along the first direction Y is H1, a dimension between the first stop part 214 and the second stop part 215 is H2, and H1 is less than H2.

[0085] For example, the first stop part 214 and the second stop part 215 are located on a side of the support 21 away from the first locking mechanism 22.

[0086] For example,Figure 2C As shown in the vertical direction in the middle as a reference, the first stop portion 214 is located below the second stop portion 215, the position where the body portion 321 abuts against the first stop portion 214 is the first limit position, and the position where 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 where the body portion 321 abuts against the second stop portion 215 is the first limit position, and the position where the body portion 321 abuts against the first stop portion 214 is the second limit position.

[0087] Thus, the movement of the body portion 321 in the first accommodating space can be realized.

[0088] In an embodiment of the present application, the damper 32 is a one-way damper 32.

[0089] The one-way damper 32 can provide a damping force during the clamping of the first clamping portion 11, and no damping force is provided when the first clamping portion 11 is pulled out of the first clamping groove 2211, which can reduce the impact sound of the door body 300 when the door is closed, and can save more labor when unlocking, thereby improving the user experience.

[0090] In an embodiment of the present application, please refer to Figure 2A and Figure 2D The first locking mechanism 22 further includes a second elastic member 223, and the second elastic member 223 is arranged on the bracket 21. When the first clamping portion 11 is in the first unlocking state, the second elastic member 223 abuts against the first movable member 221, and the second elastic member 223 is in a compressed state.

[0091] 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.

[0092] As an example, the first movable member 221 can be separated from the second elastic member 223 when it rotates by a certain angle during the clamping of the first clamping portion 11, or can remain in abutment with the second elastic member 223.

[0093] 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, when the first clamping portion 11 is unlocked, the second elastic member 223 has a buffering effect, which can reduce the impact of the first movable member 221 on the bracket 21, thereby reducing the damage to the bracket 21 and prolonging the service life of the bracket 21. On the other hand, during the clamping of the first clamping portion 11, the elastic force of the second elastic member 223 can offset part of the elastic force of the first elastic member 222, so as to reduce the pushing force acting on the clamping member 10, thereby making it easier to clamp.

[0094] In an embodiment of the present application, please refer to Figure 2A and Figure 2D The locking assembly 20 further comprises a first micro switch 28, which is arranged on the bracket 21. When the first clamping part 11 is in the locked state, the first movable part 221 triggers the first micro switch 28.

[0095] The first micro switch 28 can be connected to the bracket 21 by a screw, or can be fixed to the bracket 21 by clamping or bonding.

[0096] 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 and the first clamping part reaches the locked state, the first clamping part will trigger the first micro switch 28 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 28 is not triggered, and the microwave oven will not be able to start working. Only when the first clamping part successfully locks and triggers the first micro switch 28 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, and avoids the potential harm to the human body caused by microwave leakage.

[0097] In an embodiment of the present application, please refer to Figure 2A and Figure 2B The first movable part 221 comprises a rotating hook arm 2213, and the locking assembly 20 further comprises a blocking and limiting part 25. The blocking and limiting part 25 is located on the side of the first movable part 221 having the first clamping groove 2211. The blocking and limiting part 25 is movably mounted on the bracket 21. The blocking and limiting part 25 has a limiting clamping groove 251. 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.

[0098] 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 process of clamping the first clamping part 11 into the first clamping groove 2211, the first clamping part 11 first abuts against the first guide surface 22112. The first clamping part 11 is driven by an external force to rotate the first movable part 221. At this 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.

[0099] As an example, the first card slot 2211 has a clearance 22111, and during the clamping process of the first card holder 11, with the rotation of the first movable part 221, the orientation of the slot of the first card slot 2211 changes, and the clearance 22111 can avoid the first card slot 2211 to reduce the probability of interference during clamping. Part of the clearance 22111 can be connected with the first guide surface 22112. In other examples, the width of the first card slot 2211 is slightly larger than the width of the first card holder 11 (the size along the card-in direction X) to further reduce the probability of interference during clamping and cause jamming.

[0100] The limiting card slot 251 can be, but is not limited to, a U-shaped slot, a trapezoidal slot or a rectangular slot, etc., and can be designed according to actual needs.

[0101] The blocking and limiting part 25 can be slidingly connected with the bracket 21, and the blocking and limiting part 25 can also be rotatably connected with the bracket 21.

[0102] As an example, the blocking and limiting part 25 is slidingly connected with the bracket 21 along the first direction Y. Specifically, the bracket 21 is provided with a guide groove extending along the first direction Y, and the blocking and limiting part 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 and limiting part 25.

[0103] As an example, the end of the bracket 21 receiving the card holder 10 is a card-in end 211, and the side of the blocking and limiting part 25 facing the card-in end 211 is provided with a second guide surface 252, and the second guide surface 252 has an increasing trend from any position along the first direction Y to the minimum size of the card-in end 211. During the clamping process of the first card holder 11, the second guide surface 252 is pressed by the first card holder 11 to move the limiting card slot 251 away from the rotating hook arm 2213, thereby releasing the rotation restriction of the first movable part 221 by the blocking and limiting part 25, and finally realizing the clamping of the first card holder 11.

[0104] As an example, the side of the blocking and limiting part 25 away from the first movable part 221 is provided with a first magnet and a second magnet, the first magnet is connected with the blocking and limiting part 25, and can also be part of the blocking and limiting part 25, the second magnet is fixed to the bracket 21, and can also be part of the bracket 21, the first magnet and the second magnet are oppositely arranged, and the magnetic poles of the first magnet and the second magnet facing each other are the same, and the rotating hook arm 2213 and the limiting card slot 251 can be kept in the clamped state through the repulsion of the first magnet and the second magnet.

[0105] Through the arrangement of the rotating hook arm 2213 and the limiting card slot 251, the probability of abnormal triggering of the first movable part 221 can be reduced, and the reliability of the clamping of the first card holder 11 and the first card slot 2211 can be improved.

[0106] In an embodiment of the present application, please refer to Figure 2A and Figure 2B The blocking limiting part 25 is rotationally connected with the bracket 21, 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 part 25 away from the first movable part 221, the third elastic member 26 abuts against the bracket 21 and the blocking limiting part 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.

[0107] The third elastic member 26 comprises a compression spring, an elastic telescopic rod or a torsion spring.

[0108] For example, the third elastic member 26 can be a first compression spring, the first compression spring is located on the side of the blocking limiting part 25 away from the second movable part 231 and is offset from the rotation center of the blocking limiting part 25, one end of the third elastic member 26 abuts against the bracket 21 and the other end abuts against the blocking limiting part 25, the blocking limiting part 25 has a tendency to rotate towards the first movable part 221 under the elastic force of the third elastic member 26, so as to keep the clamped state of the rotating hook arm 2213.

[0109] The third elastic member 26 can keep the rotating hook arm 2213 in the clamped state, so as to reduce the probability of the first movable part 221 being abnormally triggered, thereby further improving the reliability of the clamping of the first clamping part 11; and the clamped state of the rotating hook arm 2213 can be released by overcoming the elastic force of the third elastic member 26, so as to facilitate the clamping operation of the first clamping part 11, and at the same time, the first clamping part 11 can be provided with a damping force in the clamping process, so as to slow down the speed of entering the first clamping groove 2211.

[0110] In an embodiment of the present application, please refer to Figures 1-2H The clamping part 10 further comprises a second clamping part 12, the second clamping part 12 is spaced apart from the first clamping part 11 along the first direction Y, the locking assembly 20 further comprises a second locking mechanism 23, the second locking mechanism 23 is spaced apart from the first locking mechanism 22 along the first direction Y, the second locking mechanism 23 is movably connected with the bracket 21, the second locking mechanism 23 has a second clamping groove 2311, the second clamping part 12 has a second locked state of being clamped with the second clamping groove 2311 from the 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 the 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 part 12 entering the second clamping groove 2311, when the second clamping part 12 is in the locked state, the second locking mechanism 23 has a tendency to block the second clamping part 12 from being separated from the second clamping groove 2311.

[0111] The second clamping part 12 can be a metal piece or a non-metal piece.

[0112] As an example, the clamping piece 10 further comprises a mounting part 13, the first clamping part 11 and the second clamping part 12 are connected with the mounting part 13, and the connection can be welding, screw connection, riveting or one-piece forming.

[0113] As an example, please refer to Figure 1 , Figures 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 from the clamping end 211. The second clamping part 12 clamps the interface 123, the first wall body clamps into the clamping interface 123, and part of the second clamping part 12 is located in the second clamping groove 2311.

[0114] As an example, please refer to Figure 2H The second clamping part 12 is a second hook body structure, which comprises 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.

[0115] 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. 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.

[0116] Thus, 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.

[0117] In an embodiment of the present application, please refer to Figure 1 , Figures 2A-2EThe second locking mechanism 23 comprises a second movable piece 231 and a fourth elastic piece 232. The second movable piece 231 is rotationally connected with the support 21, and has a second clamping groove 2311. The first connecting end 2321 of the fourth elastic piece 232 is connected with the support 21, and the second connecting end 2322 of the fourth elastic piece 232 is connected with the second movable piece 231. When the second clamping part 12 is in the second unlocking state, the fourth elastic piece 232 has a tendency to slow down the second clamping part 12 from entering the second clamping groove 2311. When the second clamping part 12 is in the second locking state, the fourth elastic piece 232 has a tendency to keep the second clamping part 12 clamped with the second clamping groove 2311.

[0118] The fourth elastic piece 232 comprises but is not limited to any one of a torsion spring or an elastic telescopic rod. The elastic telescopic rod can have the same structure as the above-mentioned listed structure.

[0119] For example, the fourth elastic piece 232 can be a first torsion spring. The support 21 is provided with a first connecting hole, and the second movable piece 231 is provided with a second connecting hole. The first connecting end 2321 of the first torsion spring is rotationally connected with the first connecting hole, and 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 piece 231 relative to the support 21.

[0120] The fourth elastic piece 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, and 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 piece 231 is slidingly connected with the support 21 along the first direction Y, the fourth elastic piece 232 is arranged between the second movable piece 231 and the support 21, the fourth elastic piece 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, and the size of any point on the inclined surface to the clamping end 211 shows an increasing trend in the direction from the first clamping part 11 to the second clamping part 12. During the clamping of the second clamping part 12, the second clamping part 12 slides on the inclined surface, the second movable piece 231 moves relative to the support 21, the fourth elastic piece 231 is compressed, and the second clamping part 12 slides into the second clamping groove 2311 to achieve clamping.

[0121] 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 piece 231, and the second movable piece 231 has a third rotation center with the bracket 21. On the second cross section of the second movable piece 231, a straight line passing through the first rotation center and the third rotation center is a second straight line P. When the second clamping part 12 is switched from the second unlocking state to the second locking state, the locus of the second rotation center intersects the second straight line P, and the axis of rotation of the second movable piece 231 with respect to the bracket 21 is perpendicular to the second cross section.

[0122] As an example, the fourth elastic member 232 is a second elastic telescopic rod, which can have the structures listed above. One end of the second elastic telescopic rod is rotationally connected with the bracket 21, and the other end is rotationally connected with the second movable piece 231. During the clamping process of the second clamping part 12, the second movable piece 231 is driven to rotate, and at the same time, the second elastic telescopic rod swings. The locus of the rotation center between the second elastic telescopic rod and the second movable piece 231 intersects the second straight line P. That is, during the clamping process of the second clamping part 12, the torque direction of the second elastic telescopic rod acting on the second movable piece 231 changes, so as to be able to maintain the clamped state after the second clamping part 12 is clamped, and to be able to slow down the clamping speed before clamping.

[0123] During the clamping process of the second clamping part 12, 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 part 12, which can on the one hand buffer the noise caused by the impact of the door body 300 with the shell 200 when the door is closed, and on the other hand can reduce the clamping noise of the second clamping part 12.

[0124] In an embodiment of the present application, please refer to Figure 1 , Figures 2A-2E The locking assembly 20 further comprises a second micro switch 29, which is arranged on the bracket 21 and located between the first locking mechanism 22 and the second locking mechanism 23. When the second clamping part 12 is in the locked state, the second movable piece 231 triggers the second micro switch 29.

[0125] The connection of the second micro switch 29 with the bracket 21 includes but is not limited to clamping, screw connection or adhesion, etc.

[0126] The second micro switch 29 can provide a door closing signal when the second clamping part 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 to the human body caused by microwave leakage.

[0127] According to the embodiments of the present application, please refer to Figures 1-3B , a cooking appliance 1000 is provided, comprising a housing 200, a door body 300 and the door lock device 100 of the above embodiments. Wherein, the inside of the housing 200 is formed with a cavity, and the front end of the housing 200 is provided with a door opening communicating 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 with the housing 200. The clamping piece 10 is installed on the door body 300, and the first clamping part 11 extends from the door body 300 to the side of the door opening. The locking assembly 20 is installed in the housing 200, and when the door body 300 covers the door opening, the first clamping part 11 is in the first locking state, and when the door body 300 is in the open state, the first clamping part 11 is in the first unlocking state.

[0128] The cooking appliance 1000 can be, but is not limited to, a microwave oven or an electric oven, etc.

[0129] The cavity is a space for cooking food.

[0130] The clamping piece 10 can be installed on the door body 300 by means of screws, welding or riveting, etc.

[0131] Taking the cooking appliance 1000 as a microwave oven for example, the spacing direction of the first clamping part 11 and the second clamping part 12 is the vertical direction, and in the process of closing the door, the first clamping part 11 and the second clamping part 12 are used to engage with the locking assembly 20, which can improve the reliability of closing the door.

[0132] 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.

[0133] 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 they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for 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 specification 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, characterized in that, 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 latch arrangement of 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. A door lock device according to claim 1 or 2, characterised in that 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 card holder further comprises a second card holding part, which is arranged in a first direction and spaced from the first card holding part, and the locking assembly further comprises a second locking mechanism, which is arranged in the first direction and spaced from the first locking mechanism, and the second locking mechanism is movably connected to the bracket, and the second locking mechanism has a second card slot, and the second card holding part has a second locking state of entering the second card slot from the card-in end and a second unlocking state of separating from the second card slot and exiting from the card-in end, and the first direction is perpendicular to the card-in direction of the first card holding part, and when the second locking mechanism is in the second unlocking state, the second locking mechanism has a tendency to slow down the second card holding part from entering the second card slot, and when the second card holding part is in the locking state, the second locking mechanism has a tendency to block the second card holding part from separating from the second card slot.

10. The door latch arrangement of claim 9, wherein The second locking mechanism comprises: a second movable part, which is rotatably connected to the bracket, and the second movable part has the second card slot; a fourth elastic part, a first connecting end of the fourth elastic part is connected to the bracket, and a second connecting end of the fourth elastic part is connected to the second movable part, and when the second card holding part is in the second unlocking state, the fourth elastic part has a tendency to slow down the second card holding part from entering the second card slot, and when the second card holding part is in the second locking state, the fourth elastic part has a tendency to keep the second card holding part from entering the second card slot.

11. The door latch arrangement of claim 10, wherein The first connecting end and the bracket have a first rotation center, the second connecting end and the second movable part have a second rotation center, and the second movable part has a third rotation center relative to the bracket, and on a second cross section of the second movable part, a straight line passing through the third rotation center and the first rotation center is a second straight line, and when the second card holding part 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 part relative to the bracket is perpendicular to the second cross section; and / or, the locking assembly further comprises a second micro switch, which is arranged on the bracket and located between the first locking mechanism and the second locking mechanism, and when the second card holding part is in the locking state, the second movable part triggers the second micro switch.

12. A cooking appliance characterized in that, It comprises: a shell, an inner part of the shell forms a cavity, and a front end of the shell is provided with a door opening communicating with the cavity; a door body, which is configured to cover the door opening, and one end of the door body is pivotally connected to the shell; The door lock device according to any one of claims 1-11, the card holder is mounted on the door body, and the first card holding part extends from one side of the door body towards the door opening, and the locking assembly is mounted in the shell, and when the door body covers the door opening, the first card holding part is in a first locking state, and when the door body is in an open state, the first card holding part is in the first unlocking state.

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