Door lock device and cooking electric appliance

Abstract

The utility model discloses a door lock device and a cooking electric appliance, and belongs to the technical field of household appliances. The door lock device comprises a clamping piece which comprises a first clamping part; the locking assembly comprises a support and a first locking mechanism, the first locking mechanism is movably connected with the support, the first locking mechanism is provided with a first clamping groove and an abutting surface, the support is provided with a clamping end, and when the first clamping part is not clamped, the shortest distance between any position on the abutting surface and the clamping end is gradually increased in the clamping direction of the first clamping part. The size from the abutting face to the clamping end in the clamping direction is gradually increased, the collision sound of the first clamping part and the abutting face can be slowed down, the first locking mechanism can provide resistance for slowing down entering the first clamping groove for the first clamping part so as to reduce the speed of the first clamping part entering the first clamping groove, and the clamping effect of the first clamping part is improved. Therefore, the collision noise between the door body and the shell in the door body closing process can be reduced.

Description

Technical Field

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

[0002] In the related art, a cooking appliance comprises a housing and a door, which is rotatably mounted on the housing. The door can be opened or closed by an external force. During the closing process, the door easily collides with the housing, generating a loud noise that affects the user experience. Utility Model Content

[0003] In view of the above problems, the present application provides a door lock device and a cooking appliance, which can reduce the noise generated by the collision between the door body and the shell during the door closing process.

[0004] In a first aspect, the present application provides a door lock device for locking a door and a housing of a cooking appliance, comprising:

[0005] A clamping member is used to be installed on the door body, and the clamping member includes a first clamping portion;

[0006] The locking assembly includes a bracket and a first locking mechanism, the bracket is used to be connected to the shell, the first locking mechanism is movably connected to the bracket, the first locking mechanism has a first card slot and an abutment surface, the bracket is provided with a card-in end, the first holding portion has a first locking state that moves from the card-in end to the abutment surface and slides from the abutment surface into the first card slot, and a first unlocking state that moves out of the first card slot and exits from the card-in end. When the first holding portion is not engaged, along the card-in direction of the first holding portion, the shortest distance between any position on the abutment surface and the card-in end shows an increasing trend. The first locking mechanism is configured to be driven by the first holding portion and move relative to the bracket. The first locking mechanism is used to provide the first holding portion with an elastic force that slows down the first holding portion from entering the first card slot.

[0007] The door lock device is used in a cooking appliance. The holder can be installed on the door body of the cooking appliance, and the locking assembly is installed in the shell of the cooking appliance. The shortest distance between any position on the abutting surface and the snap-in end is increasing. During the process of closing the door, the first holder is snapped into the locking assembly from the snap-in end and slides into the first slot on the surface of the abutting surface. Since the size from the abutting surface to the snap-in end along the snap-in direction is increasing, the abutting surface has a certain slope. During the process of the first holder being locked by the locking assembly, the first holder drives the first locking mechanism to move relative to the bracket, which can slow down the collision sound between the first holder and the abutting surface, and the first locking mechanism can provide the first holder with resistance to slow down its entry into the first slot, so as to reduce the speed at which the first holder enters the first slot, thereby reducing the collision noise with the shell during the closing process of the door body.

[0008] In some embodiments of the present application, the first locking mechanism includes:

[0009] A first movable member is rotatably connected to the bracket, and the first movable member has a first slot and an abutting surface;

[0010] The first elastic member has one end connected to the bracket and the other end connected to the first movable member. The first elastic member is used to provide elastic force to the first movable member so that the first movable member has the tendency to slow down the first holding portion from entering the first slot.

[0011] The first elastic member includes one of a torsion spring or an elastic telescopic rod.

[0012] In some embodiments of the present application, the locking assembly further includes a first microswitch, which is disposed on the first movable part. When the first clamping portion is in the first locking state, the first clamping portion triggers the first microswitch to cause the first microswitch to generate a door closing signal.

[0013] In some embodiments of the present application, the first holding portion is a hook body structure, the hook body structure includes a hook head and a hook handle, the hook head is connected to the hook handle, the hook head and the hook handle jointly define an avoidance groove, and when the first holding portion is in the first locking state, part of the hook head is located in the first holding slot, and part of the first movable part is located in the avoidance slot.

[0014] In some embodiments of the present application, the slot of the first card slot includes a first edge. When the first holding portion is in the first locking state, the first edge is located in the avoidance groove. Along the depth direction of the slot, the size of the hook head from the surface facing the first edge to the first edge along the carding direction shows an increasing trend.

[0015] In some embodiments of the present application, the clamping member also includes a second clamping portion, the second clamping portion is formed with a hook structure, the second clamping portion and the first clamping portion are spaced apart along the first direction, the locking assembly also includes a second locking mechanism, the second locking mechanism and the first locking mechanism are spaced apart along the first direction, the second locking mechanism is movably connected to the bracket, the second locking mechanism has a second card slot, the second clamping portion has a second locking state from the card-in end to engage with the second card slot, and a second unlocking state from the second card slot to exit from the card-in end, the axis of rotation of the first movable member relative to the bracket is perpendicular to the first 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 from entering the second card slot, and when the second clamping portion is in the second locking state, the second locking mechanism has a tendency to prevent the second clamping portion from separating from the second card slot.

[0016] In some embodiments of the present application, the second locking mechanism includes:

[0017] A second movable member is rotatably connected to the bracket, and the second movable member has a second slot;

[0018] The second elastic member, the first end of the second elastic member is connected to the bracket, the second end of the second elastic member is connected to the second movable member, when the second clamping portion is in the second unlocking state, the second elastic member has a tendency to slow down the second clamping portion entering the second clamping slot, when the second clamping portion is in the second locking state, the second elastic member has a tendency to slow down the second clamping portion from separating from the second clamping slot.

[0019] In some embodiments of the present application, there is a first rotation center between the first end and the bracket, a second rotation center between the second end and the second movable member, and a third rotation center between the second movable member and the bracket. On the first cross section of the second movable member, the line connecting the third rotation center to the first rotation center is a first straight line. During the process of switching the second holding portion from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects with the first straight line, and the axis of rotation of the second movable member relative to the bracket is perpendicular to the first cross section.

[0020] In some embodiments of the present application, the second locking mechanism further includes a third elastic member, which is disposed on the bracket. When the second clamping portion is in the second unlocked state, the third elastic member abuts against the second movable member, and the third elastic member is in a compressed state.

[0021] In some embodiments of the present application, the locking assembly further includes a damping component, which is disposed on the bracket and is used to provide a damping force to the second movable member to slow down the speed at which the second holding portion is inserted into the second slot.

[0022] In some embodiments of the present application, the second movable part has a partially convex arc surface, the axis of rotation of the second movable part relative to the bracket coincides with the axis of the arc surface, the arc surface is provided with a plurality of meshing teeth continuously arranged along the circumference of the arc surface, the damping component includes a damper and a rack, the rack is slidingly connected to the bracket along a first direction, the rack is meshed with the meshing teeth, and along the length direction of the rack, the rack is configured to be driven and to move linearly relative to the bracket, and the movable end of the damper is connected to one end of the rack in the length direction.

[0023] In some embodiments of the present application, the locking assembly further includes a second microswitch, which is disposed on the bracket. When the second clamping portion is in the second locking state, the second movable part triggers the second microswitch to generate a door closing signal.

[0024] In some embodiments of the present application, the second movable part includes a rotating hook arm, and the locking assembly also includes a blocking limit part, which is located on a side of the second movable part having a second slot. The blocking limit part is movably installed on the bracket, and the blocking limit part has a limiting slot. When the second clamping part is moved out from the clamping end, the limiting slot is engaged with the rotating hook arm to limit the rotation of the second movable part relative to the bracket. The blocking limit part is configured to be driven by the second clamping part to separate the limiting slot from the rotating hook arm.

[0025] In some embodiments of the present application, the blocking limit member is rotatably connected to the bracket, and the locking assembly also includes a fourth elastic member, which is located on the side of the blocking limit member away from the second movable member. The fourth elastic member is respectively abutted against the bracket and the blocking limit member. When the rotating hook arm is in a locked state, the elastic force of the fourth elastic member can cause the limiting slot and the rotating hook arm to remain in a locked state.

[0026] In a second aspect, the present application provides a cooking appliance, comprising:

[0027] A housing is formed with a cavity inside, and a front end of the housing is provided with a door communicating with the cavity;

[0028] The door body is configured to cover the doorway, and one end of the door body is pivotally connected to the housing;

[0029] In the door lock device of the first aspect, the clamping member is installed on the door body, and the first clamping portion extends from the side of the door body toward the door door, and the locking assembly is installed in the shell. When the door body covers the door door, the first clamping portion is in a locked state, and when the door body is in an open state, the first clamping portion is in an unlocked state.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0032] Figure 1 This is an exploded view of a door lock device according to one embodiment of the present application;

[0033] Figure 2A A side view of a door lock device according to an embodiment of the present application, wherein a retaining member is located outside a locking assembly;

[0034] Figure 2B A side view of the engagement process between a clamping member and a locking assembly of a door lock device according to one embodiment of the present application;

[0035] Figure 2C A side view of a door lock device according to an embodiment of the present application, in which a latching member is in a locked state;

[0036] Figure 2DA side view of a door lock device according to another embodiment of the present application, wherein a retaining member is located outside a locking assembly;

[0037] Figure 2E A side view of a door lock device according to another embodiment of the present application, wherein a retaining member is located outside a locking assembly;

[0038] Figure 3 This is an axonometric diagram of a cooking appliance from a first perspective according to an embodiment of the present application;

[0039] Figure 4 This is a partial axonometric view of a cooking appliance from a second perspective according to an embodiment of the present application.

[0040] The accompanying drawings in the specific implementation manner are as follows:

[0041] 1000. Cooking appliances;

[0042] 100. Door locking device;

[0043] 200, housing;

[0044] 300, door body;

[0045] 10. Clamping member; 11. First clamping portion; 111. Hook head; 112. Hook handle; 113. Avoidance groove; 12. Second clamping portion; 121. Hook head; 122. Hook rod; 13. Mounting portion;

[0046] 20. Locking assembly; 21. Bracket; 211. Engaging end; 212. First limiting post; 213. Second limiting post; 22. First locking mechanism; 221. First movable member; 2211. First engaging slot; 22111. First edge; 2212. Abutting surface; 222. First elastic member; 23. Second locking mechanism; 231. Second movable member; 2311. Second engaging slot; 23111. Avoidance portion; 23112. First guide surface; 2312. Engaging tooth; 2313. Rotating hook arm; 232. Second elastic member; 2321. First end; 2322. Second end; 233. Third elastic member; 24. Blocking limiting member; 241. Limiting slot; 242. Second guide surface; 25. Fourth elastic member; 26. Cover plate; 27. First micro switch; 28. Second micro switch

[0047] 30. Damping component; 31. Rack; 32. Damper;

[0048] X, snap-in direction; Y, first direction. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled 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 this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0052] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may 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 refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0055] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0056] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0057] The door of a cooking appliance has a hook, and a bracket that locks the hook is mounted on the housing. When the door is closed, the hook engages the bracket. Since the hook can move up and down and is connected to the door via a spring, the spring stretches during closing. When the hook engages with the bracket, the spring's force keeps the hook and bracket engaged. Closing the door with such force can cause a collision between the door and the housing, generating noise.

[0058] The door lock device provided by the present application has an increasing dimension from the abutting surface to the locking end along the locking direction, and the first locking mechanism provides resistance to the first locking part to slow down its entry into the first locking groove. This can reduce the collision sound between the first locking part and the abutting surface when closing the door, and at the same time slow down the resistance of the first locking part entering the first locking groove, thereby reducing the speed at which the first locking part enters the first locking groove, thereby reducing the collision noise with the shell during the closing process of the door body.

[0059] According to the implementation of this application, please refer to 1- Figure 4As shown, a door lock device 100 is proposed for locking the door body 300 and the shell 200 of the cooking appliance 1000. The door lock device 100 includes a clamping member 10 and a locking assembly 20. The clamping member 10 is used to be installed on the door body 300. The clamping member 10 includes a first clamping portion 11. The locking assembly 20 includes a bracket 21 and a first locking mechanism 22. The bracket 21 is used to be connected to the shell 200. The first locking mechanism 22 is movably connected to the bracket 21. The first locking mechanism 22 has a first card slot 2211 and an abutting surface 2212. The bracket 21 is provided with a card-in end 211. The first clamping portion 11 has a first locking state that moves from the card-in end 211 to the abutting surface 2212, and slides from the abutting surface 2212 to the first card slot 2211, and from the first card slot 2212 to the first locking state. 211 and withdrawn from the first unlocked state of the card-holding end 211. When the first card-holding portion 11 is not engaged, along the card-holding direction X of the first card-holding portion 11, the shortest distance between any position on the abutting surface 2212 and the card-holding end 211 shows an increasing trend. The first locking mechanism 22 is configured to be driven by the first card-holding portion 11 and move relative to the bracket 21. The first locking mechanism 22 is used to provide elastic force to the first card-holding portion 11 to slow down the first card-holding portion 11 from entering the first card slot 2211.

[0060] Any position on the abutting surface 2212 refers to the position of the abutting surface 2212 along the clamping direction X of the first clamping portion 11, that is, along the clamping direction X of the first clamping portion 11, the position on the abutting surface 2212 gradually approaches the notch of the first clamping slot 2211, and the distance from the clamping end 211 gradually increases.

[0061] like Figure 2A As shown, the shortest distance dmin between any position on the abutting surface 2212 and the snap-in end 211 is, wherein along the snap-in direction X, the size of dmin increases.

[0062] The bracket 21 and the housing 200 can be connected in a detachable manner such as a snap connection or screws for easy assembly. If assembly is not considered, the bracket 21 can also be fixed to the housing 200 by bonding, welding or riveting.

[0063] The holding member 10 can be installed on the door body 300 by welding, riveting or screw connection.

[0064] The engaging end 211 refers to the end of the bracket 21 for receiving the engaging member 10. As an example, the engaging end 211 of the bracket 21 is provided with a first through-hole. During the engaging process between the first engaging portion 11 and the first engaging slot 2211, the first engaging portion 11 first passes through the first through-hole and abuts against the abutting surface 2212. The first engaging portion 11 moves horizontally under the action of an external force. Since the dimension from the abutting surface 2212 to the engaging end 211 along the engaging direction X increases, the abutting surface 2212 has a certain slope. Under the abutting pressure of the first engaging portion 11, the abutting surface 2212 causes the first locking mechanism 22 to move relative to the bracket 21.

[0065] The locking direction X refers to the direction in which the first locking portion 11 enters the locking assembly 20 from the locking end 211 .

[0066] As an example, the clamping member 10 further includes a mounting portion 13, and the first clamping portion 11 is connected to the mounting portion 13. The electrical connection between the first clamping portion 11 and the mounting portion 13 includes, but is not limited to, screw connection, riveting, welding, or integral molding. The first clamping portion 11 can be a metal part or a plastic part.

[0067] As an example, the first holding portion 11 may be a hook-shaped structure, or a structure with a clamping protrusion at the end, such as a rod-shaped structure with a spherical end.

[0068] The abutting surface 2212 may be, but is not limited to, any one of a flat surface, an outwardly convex arc surface, and an inwardly concave arc surface.

[0069] The door lock device 100 is applied to the cooking appliance 1000. The clamping member 10 can be installed on the door body 300 of the cooking appliance 1000. The locking assembly 20 is installed in the housing 200 of the cooking appliance 1000. The dimensions of the abutting surface 2212 to the snap-in end 211 along the snap-in direction X are gradually increasing. During the process of closing the door, the first clamping portion 11 is snapped into the locking assembly 20 from the snap-in end 211 and slides into the first slot 2211 on the surface of the abutting surface 2212. During the process of locking the first clamping portion 11 by the locking assembly 20, the first clamping portion 11 is snapped into the locking assembly 20 from the snap-in end 211. In the embodiment, the first clamping portion 11 drives the first locking mechanism 22 to move relative to the bracket 21. Since the size of the abutting surface 2212 to the clamping end 211 along the clamping direction X is in an increasing trend, the collision sound between the first clamping portion 11 and the abutting surface 2212 can be slowed down, and the first locking mechanism 22 can provide resistance to the first clamping portion 11 to slow down its entry into the first clamping groove 2211, so as to reduce the speed of the first clamping portion 11 entering the first clamping groove 2211, thereby reducing the collision noise between the door body 300 and the shell 200 during the closing process.

[0070] In some embodiments of this application, please refer to Figure 1 、 Figure 2A-2CThe first locking mechanism 22 includes a first movable member 221 and a first elastic member 222. The first movable member 221 is rotatably connected to the bracket 21 and has a first engaging groove 2211 and an abutting surface 2212. One end of the first elastic member 222 is connected to the bracket 21, and the other end of the first elastic member 222 is connected to the first movable member 221. The first elastic member 222 is used to provide elastic force to the first movable member 221, so that the first movable member 221 has the effect of slowing down the first retaining portion 11 from entering the first engaging groove 2211.

[0071] The first elastic member 222 includes but is not limited to any one of a torsion spring, a compression spring, or a first elastic telescopic rod.

[0072] As an example, the first elastic member 222 may be a torsion spring. Figure 2A The direction shown is for reference only. The first elastic member 222 is located below the first movable member 221. The bracket 21 is provided with a first connecting hole, and the first movable member 221 is provided with a second connecting hole. One end of the first elastic member 222 is rotatably connected to the first connecting hole, and the other end of the first elastic member 222 is rotatably connected to the second connecting hole. The position of the rotatable connection with the second connecting hole deviates from the axis of rotation of the first movable member 221 and the bracket 21. When the first clamping portion 11 is pressed against the pressing surface and slides onto the surface of the abutting surface 2212 into the first slot 2211, due to the slope of the abutting surface 2212, the first clamping portion 11 drives the first movable member 221 to rotate relative to the bracket 21. At this time, the first elastic member 222 is compressed, causing the first movable member 221 to generate resistance that slows down the first clamping portion 11 from entering the first elastic member 222, thereby slowing down the speed at which the first clamping portion 11 enters the first slot 2211. In another example, the first elastic member 222 may also be sleeved on the position where the first movable member 221 is rotatably connected to the bracket 21 .

[0073] As an example, the first elastic member 222 can be a compression spring. A connecting portion is provided on the bracket 21. One end of the first elastic member 222 is mounted on the connecting portion. For example, it can be connected to the connecting portion by bonding or welding. When the first clamping portion 11 presses against the pressing surface and slides on the surface of the abutting surface 2212 into the first clamping groove 2211, the first movable member 221 rotates relative to the bracket 21 and abuts against the compression spring, causing the compression spring to be compressed. The compression spring can be replaced by an elastic telescopic rod, that is, Figure 2DThe first elastic member 222 is exemplarily shown as a first elastic telescopic rod. As an example, the first elastic telescopic rod can be an air spring. The elastic telescopic rod can also include a first rod, a second rod, and a first compression spring. The first rod is a hollow rod, and a portion of the second rod is disposed within 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 a first compression spring is disposed between the other end of the first rod and the second rod. During installation, one end of the first elastic telescopic rod can be hinged to the bracket 21, and the other end can be hinged to the first movable member 221 or abut against the second movable member 231. The axis of rotation of the first movable member 221 and the bracket 21 can be perpendicular to the axis of the first elastic telescopic rod and spaced apart.

[0074] As an example, the first movable part 221 includes a first rotating part, a main body and an abutting part. The first rotating part is connected to the main body, and can be formed into an integral structure by injection molding or welding. The first rotating part is provided with a socket, the bracket 21 is provided with a rotating shaft, and the socket is plugged into the rotating shaft; or the first rotating part is a cylindrical protrusion mechanism, the bracket 21 is provided with a socket, and the first rotating part is inserted into the socket. The side of the main body facing the insertion end is connected to the abutting part, and the abutting part can be formed into an integral structure with the main body by injection molding or welding. The side of the abutting part facing the insertion end has an abutting surface 2212. The abutting part and the first rotating part are spaced apart along the card-in direction X, and the abutting part, the first rotating part and the main body together define the first card slot 2211.

[0075] As an example, the first latching slot 2211 may also be provided on the abutting surface 2212 , that is, when the first holding portion 11 slides along the abutting surface 2212 , it may directly slide into the first latching slot 2211 .

[0076] As an example, in order to improve the reliability of the connection between the first card slot 2211 and the first holding portion 11, the bracket 21 is provided with a first limiting column 212 for limiting the rotation angle of the first movable part 221. When the first holding portion 11 slides along the abutting surface 2212 and is about to slide into the notch of the first card slot 2211, the first movable part 221 rotates and approaches the first limiting column 212, or it can abut against the first limiting column 212, so that the first movable part 221 rotates within a predetermined angle range to improve the reliability of the connection between the first holding portion 11 and the first card slot 2211.

[0077] When the first clamping portion 11 abuts against the abutting surface 2212, the first movable part 221 can be rotated, and the first elastic part 222 is compressed to buffer the impact force between the first clamping portion 11 and the abutting surface 2212 to reduce noise. At the same time, the speed at which the first movable part 221 enters the first clamping groove 2211 can be slowed down to further reduce the noise generated by the clamping of the first clamping portion 11 and the first clamping groove 2211.

[0078] In some embodiments of the present application, Figure 2E Taking the reference direction in as an example, the above-mentioned first movable member 221 can also move relative to the bracket 21 in the vertical direction. The first elastic member 222 is arranged below the first movable member 221, and one end of the first elastic member 222 abuts against the first movable member 221, and the other end of the first elastic member 222 abuts against the bracket 21.

[0079] When the first clamping portion 11 slides from the abutting surface 2212 to the first clamping groove 2211, since the abutting surface 2212 is a slope structure, the first clamping portion 11 can drive the first movable part 221 to move in the vertical direction relative to the bracket 21, so that the first elastic part 222 is compressed. When the first clamping portion 11 collides with the abutting surface 2212, the first elastic part 222 can reduce the sound of the impact, and at the same time, it can also slow down the speed of the first clamping portion 11 entering the first clamping groove 2211, so as to reduce the sound of the impact and the clamping sound between the door body 300 and the shell 200.

[0080] In some embodiments of this application, please refer to Figure 2A The locking assembly 20 also includes a first micro switch 27, which is arranged on the first movable part 221. When the first holding portion 11 is in the first locking state, the first holding portion 11 triggers the first micro switch 27, so that the first micro switch 27 generates a door closing signal.

[0081] As an example, the first movable member 221 is provided with two spaced and oppositely disposed snaps, and the first micro switch 27 can be pressed into the two snap brackets 21 to secure the first micro switch 27. The first micro switch 27 can also be bonded to the first movable member 221 or fixed to the first movable member 221 by screws.

[0082] Take 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 portion 11 reaches the first locking state. At this time, the first clamping portion 11 will accurately trigger the first microswitch 27, thereby generating a door closing signal. For example, when the user is ready to heat food and closes the microwave oven door, if the first clamping portion 11 is not in the correct locking state, the microwave oven will not be able to start working. Only when the first clamping portion 11 is successfully locked and triggers the first microswitch 27, generating a door closing signal, will the heating function of the microwave oven be activated. This effectively prevents the microwave oven from being started when the oven door is not tightly closed, avoiding potential harm to the human body caused by microwave leakage.

[0083] In some embodiments of this application, please refer to Figure 2A-2CThe first holding portion 11 is a hook body structure, which includes a hook head 111 and a hook handle 112. The hook head 111 is connected to the hook handle 112. The hook head 111 and the hook handle 112 jointly define an avoidance groove 113. When the first holding portion 11 is in the first locking state, part of the hook head 111 is located in the first locking groove 2211, and part of the first movable part 221 is located in the avoidance groove 113.

[0084] As an example, the cross-sectional area of the connection position between the hook head 111 and the hook handle 112 is smaller than the cross-sectional area of the position of the hook head 111. When the first holding portion 11 is engaged with the first slot 2211, the narrow area where the hook head 111 and the hook handle 112 are connected forms an avoidance groove 113. When part of the hook head 111 is engaged with the first slot 2211, part of the first movable part 221 can be moved into the avoidance groove 113 to increase the volume of the hook head 111 entering the first slot 2211, thereby improving the reliability of the engagement between the holding portion and the first slot 2211.

[0085] The first holding portion 11 is configured as a hook structure to facilitate the connection and separation of the first holding portion 11 and the first slot 2211 .

[0086] In some embodiments of this application, please refer to Figure 2C The slot of the first card slot 2211 includes a first edge 22111. When the first holding portion 11 is in the first locking state, the first edge 22111 is located in the avoidance groove 113. Along the depth direction of the slot, the size of the hook head 111 from the surface facing the first edge 22111 to the first edge 22111 along the carding direction X shows an increasing trend.

[0087] As an example, the hook head 111 includes a first guide surface, a second guide surface, and a third guide surface. The second guide surface is connected to the first guide surface on one side along the insertion direction X, and is connected to the third guide surface on the other side along the insertion direction X. The third guide surface is larger than the first guide surface from the hook handle 112 along the insertion direction X. When the first retaining portion 11 is in contact with the abutting surface 2212 and slides on the abutting surface 2212, the third guide surface contacts the abutting surface 2212. When the first retaining portion 11 slides to the notch of the first retaining slot 2211, the second and third guide surfaces sequentially contact the edges of the notch. In order to be able to disengage the first holding portion 11 from the first slot 2211 by pulling the holding member 10 under the action of external force, the dimensions of the first guide surface and the third guide surface along the card-in direction X show an increasing trend along the direction from the bottom of the first slot 2211 to the slot opening (the dimension change of the first holding member 10 in the first locking state), and the first guide surface can be an outwardly convex arc surface. By pulling the holding member 10 by external force and overcoming the force of the first elastic member 222 on the first movable member 221, the first guide surface of the first holding portion 11 can slide relative to the slot edge of the first slot 2211, so that the first movable member 221 rotates relative to the bracket 21, thereby allowing the first holding portion 11 to disengage from the first slot 2211, completing the unlocking operation of the first holding portion 11.

[0088] Therefore, when external force pulls the holding member 10 out of the first slot 2211, the surface of the hook head 111 facing the first edge 22111 and the first edge 22111 will slide relative to each other, and the size of the surface of the hook head 111 facing the first edge 22111 to the first edge 22111 along the locking direction X tends to decrease, which can generate a torque that drives the first movable part 221 to rotate relative to the bracket 21 to overcome the torque of the first elastic part 222 on the first movable part 221, so that the hook head 111 can be pulled out of the first slot 2211.

[0089] In some embodiments of this application, please refer to Figure 2A-2CThe locking member 10 also includes a second locking portion 12, the second locking portion 12 forming a hook structure, the second locking portion 12 and the first locking portion 11 are spaced apart along the first direction Y, the locking assembly 20 also includes a second locking mechanism 23, the second locking mechanism 23 and the first locking mechanism 22 are spaced apart 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 locking groove 2311, the second locking portion 12 has a second locking state from the locking end 211 to enter and engage with the second locking groove 2311, and a second unlocking state from the second locking groove 2311 to exit from the locking end 211, the first direction Y is perpendicular to the locking direction X, when the second locking mechanism 23 is in the second unlocking state, the second locking mechanism 23 has a tendency to slow down the second locking portion 12 from entering the second locking groove 2311, and when the second locking portion 12 is in the second locking state, the second locking mechanism 23 has a tendency to slow down the separation of the second locking portion 12 from the second locking groove 2311.

[0090] Taking the cooking appliance 1000 as a microwave oven as an example, when one end of the door body 300 is pivotally connected to the shell 200 and the other end of the door body 300 is locked by the door locking device 100, the locking direction X is the direction in which the door body 300 rotates relative to the shell 200, and the first direction Y is perpendicular to the locking direction X of the clamping member 10, which means that the first direction Y is perpendicular to the normal and tangential directions of the rotation of the door body 300 relative to the shell 200.

[0091] The first direction Y is a direction perpendicular to the normal direction and the tangential direction of the circumferential direction of the second holding portion 12 .

[0092] As an example, the second holding portion 12 may be an L-shaped rod or a hook-shaped structure.

[0093] As an example, the clamping part 10 also includes a mounting portion 13, and the first clamping portion 11 and the second clamping portion 12 are respectively connected to the mounting portion 13. The connection between the first clamping portion 11 and the mounting portion 13 and the connection between the second clamping portion 12 and the mounting portion 13 include but are not limited to welding, screw connection, riveting or one-piece molding, etc.

[0094] Taking the door lock device 100 as an example, one end of the microwave oven door 300 is pivotally connected to the microwave oven housing 200. The mounting portion 13 of the clamping member 10 can be mounted on the door 300, specifically, connected to the door 300 via screws. The first clamping portion 11 and the second clamping portion 12 protrude from the surface of the first door 300 facing the opening of the housing 200. The housing 200 is mounted on the front end of the locking assembly 20. The bracket 21 of the locking assembly 20 can be connected to the housing 200 via screws or by snap-fitting. When the microwave oven is normally placed or in use, the spacing between the first clamping portion 11 and the second clamping portion 12 is vertical, that is, the first direction Y is vertical. The first clamping portion 11 and the second clamping portion 12 are respectively connected to and separated from the locking assembly 20 by sliding the door 300.

[0095] During the process of the second holding portion 12 moving from the insertion end 211 into the second slot 2311, the second locking mechanism 23 can slow down the entry of the second holding portion 12 into the second slot 2311. This reduces the noise of the door 300 colliding with the housing 200 during the closing process of the cooking appliance 1000 door 300, and also reduces the noise of the second holding portion 12 engaging with the second slot 2311. When the second holding portion 12 separates from the second slot 2311, the second locking mechanism 23 can slow down the separation process. Therefore, a certain pulling force needs to be applied to the holding member 10 to release the second locking mechanism 23 from the second holding portion 12, thereby improving the reliability of the engagement.

[0096] In some embodiments of this application, please refer to Figures 2A-2D The second locking mechanism 23 includes a second movable member 231 and a second elastic member 232. The second movable member 231 is rotatably connected to the bracket 21 and has a second engaging slot 2311. A first end 2321 of the second elastic member 232 is rotatably connected to the bracket 21, and a second end 2322 of the second elastic member 232 is rotatably connected to the second movable member 231. When the second holding portion 12 is in the second unlocked state, the second elastic member 232 has a tendency to slow down the second holding portion 12 from entering the second engaging slot 2311. When the second holding portion 12 is in the second locked state, the second elastic member 232 has a tendency to prevent the second holding portion 12 from separating from the second engaging slot 2311.

[0097] The second elastic member 232 may be, but is not limited to, any one of a torsion spring and a second elastic telescopic rod. The structure of the second elastic telescopic rod may be the same as that of the first elastic telescopic rod. Figure 2D The second elastic member 232 is exemplarily shown as a structure of a second elastic telescopic rod. Figure 2A The second elastic member 232 is exemplarily shown as a torsion spring.

[0098] As an example, see Figure 2A-2E The bracket 21 is provided with a second limiting column 213, which can limit the rotation angle of the second movable member 231 relative to the bracket 21, that is, when the second clamping portion 12 is clamped into the second clamping groove 2311, the second movable member 231 is against the second limiting column 213, or maintains a predetermined distance from the second limiting column 213, so as to reduce the probability of the second movable member 231 causing the second clamping portion 12 to fail to be clamped due to excessive rotation angle.

[0099] The provision of the second elastic member 232 can slow the speed at which the second clamping portion 12 engages with the second clamping slot 2311. This can buffer the noise caused by the door body 300 colliding with the housing 200 when closing, and reduce the engagement noise between the second clamping portion 12 and the second clamping slot 2311. In other examples, the second movable member 231 is slidably connected to the bracket 21 along the first direction Y. A 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 notch end of the second clamping slot 2311 has an inclined surface on the side near the engagement end 211. The distance from any point on the inclined surface to the engagement end 211 increases from the first clamping portion 11 to the second clamping portion 12. During the engagement of the second clamping portion 12, the second clamping portion 12 slides on the inclined surface, the second movable member 231 moves relative to the bracket 21, and the fourth elastic member 231 is compressed, causing the second clamping portion 12 to slide into the second clamping slot 2311, achieving engagement.

[0100] In some embodiments of the present application, there is a first rotation center between the first end 2321 and the bracket, a second rotation center between the second end 2322 and the second movable member 231, and a third rotation center between the second movable member 231 and the bracket 21. On the first cross section of the second movable member 231, the line connecting the third rotation center to the first rotation center is the first straight line P. During the process of switching the second clamping portion 12 from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects with the first straight line P, and the axis of rotation of the second movable member 231 relative to the bracket 21 is perpendicular to the first cross section.

[0101] On the same cross section of the second movable member 231, the straight line from the center of rotation of the second movable member 231 relative to the bracket 21 to the center of the first end 2321 is the first straight line P. When the second clamping portion 12 switches from the second unlocked state to the second locked state, the trajectory curve of the second end 2322 intersects with the first straight line P, and the axis of rotation of the second movable member 231 relative to the bracket 21 is perpendicular to the cross section of the second movable member 231.

[0102] As an example, see Figure 2DThe second elastic member 232 is a second elastic telescopic rod, one end of which is rotatably connected to the bracket 21, and the other end of which is rotatably connected to the second movable member 231. During the switching process of the second holding portion 12 from the second unlocked state to the second locked state, the second movable member 231 is driven by the second holding portion 12 and rotates relative to the bracket 21. Simultaneously, the second elastic member 232 swings relative to the bracket 21, with the second rotation center intersecting the first straight line P. That is, when the second clamping portion 12 is in the unlocked state, the second movable member 231 is maintained in the unlocked state by the elastic force of the second elastic telescopic rod. When the second clamping portion 12 moves from the engaging end 211 toward the second engaging slot 2311 and overcomes the elastic force of the second elastic telescopic rod, the second movable member 231 rotates. When the rotation center between the second elastic telescopic rod and the second movable member 231 moves to the first straight line P, the elastic force of the second elastic telescopic rod no longer causes the second movable member 231 to rotate. As the second clamping portion 12 further causes the second movable member 231 to move into the second engaging slot 2311, the component of the elastic force of the second elastic telescopic rod along the rotational direction of the second movable member 231 relative to the bracket 21 can cause the second clamping portion 12 to remain in the second engaging slot 2311. In other words, during the engaging process of the second clamping portion 12, as the second movable member 231 rotates, the direction of the torque generated by the elastic force of the second elastic telescopic rod on the second movable member 231 changes, resulting in different rotational tendencies of the second movable member 231 at different rotational positions.

[0103] The trajectory curve of the second rotation center intersects the first straight line P. When the second clamping portion 12 is in the second unlocked state or the second locked state, the second elastic member 232 can provide elastic forces in different directions to the second movable member 231. Specifically, when the second clamping portion 12 is in the second unlocked state and located outside the engaging end 211, the elastic force of the second elastic member 232 provides the second movable member 231 with a force component in the opposite direction of the engaging direction X, thereby slowing the second clamping portion 12 from entering the second engaging slot 2311. When the second clamping portion 12 is in the second locked state, the elastic force of the second elastic member 232 provides the second movable member 231 with a force component in the same direction as the engaging direction X, thereby preventing the second clamping portion 12 from separating from the second engaging slot 2311.

[0104] In some embodiments of this application, please refer to Figure 2A-2E The second locking mechanism 23 further includes a third elastic member 233, which is disposed on the bracket 21. When the second holding portion 12 is in the second unlocked state, the third elastic member 233 abuts against the second movable member 231, and the third elastic member 233 is in a compressed state.

[0105] The third elastic member 233 includes but is not limited to 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.

[0106] As an example, during the engagement between the second holding member 10 and the second engaging slot 2311 , the second movable member 231 can be separated from the third elastic member 233 or can remain in contact with the third elastic member 233 when it rotates a certain angle.

[0107] In the second unlocked state, the second movable part 231 maintains balance under the action of the third elastic part 233 and the second elastic part 232. On the one hand, when the second clamping part 12 is unlocked, the third elastic part 233 can buffer the impact of the second movable part 231 on the bracket 21, so as to reduce damage to the bracket 21 and extend the service life of the bracket 21. On the other hand, in the process of the second clamping part 12 being clamped into the second clamping slot 2311, the elastic force of the third elastic part 233 can offset part of the elastic force of the second elastic part 232, so as to reduce the thrust acting on the clamping part 10, making the clamping more labor-saving.

[0108] In some embodiments of this application, please refer to Figure 1 The locking assembly 20 further includes a damping component 30 , which is disposed on the bracket 21 . The damping component 30 is configured to provide a damping force to the second movable member 231 to slow down the speed at which the second holding portion 12 is inserted into the second slot 2311 .

[0109] The damping component 30 includes either an elastic telescopic rod or a damper 32 .

[0110] The setting of the damping component 30 can further slow down the speed at which the second clamping portion 12 enters the second clamping groove 2311, so as to reduce the impact sound between the door body 300 and the shell 200 when the door body 300 of the cooking appliance 1000 is closed. At the same time, after the second clamping portion 12 enters the second clamping groove 2311, the sound of the second clamping portion 12 and the second clamping groove 2311 being engaged can be reduced.

[0111] In some embodiments of this application, please refer to Figure 1 and Figure 2A The second movable member 231 has a partially convex arc surface, and the axis of rotation of the second movable member 231 relative to the bracket 21 coincides with the axis of the arc surface. The arc surface is provided with a plurality of meshing teeth 2312 continuously arranged along the circumference of the arc surface. The damping component 30 includes a damper 32 and a rack 31. The rack 31 is slidingly connected to the bracket 21 along the first direction Y. The rack 31 is engaged with the meshing teeth 2312. Along the length direction of the rack 31, the rack 31 is configured to be driven and to make a linear motion relative to the bracket 21. The movable end of the damper 32 is connected to one end of the rack 31 in the length direction.

[0112] As an example, the bracket 21 is provided with a cover plate 26, which is detachably connected to the bracket 21, specifically, it can be one or both of a snap connection or a screw connection, and together with the bracket 21, a guide groove is defined. The length direction of the guide groove can be the same as the first direction Y. The rack 31 and the damper 32 are both arranged in the guide groove, and the damper 32 is against the end of the rack 31.

[0113] The damper 32 may be a one-way damper. In other examples, the damping component 30 may be an elastic telescopic rod, which may be of the structure listed above.

[0114] As an example, the second slot 2311 may be substantially a U-shaped slot.

[0115] When the second clamping portion 12 is inserted into the second clamping slot 2311, the second clamping portion 12 drives the second movable member 231 to rotate relative to the bracket 21. The rotation of the second movable member 231 drives the rack 31 to move along its own length, thereby compressing the damper 32. The damper 32 provides a reverse damping force to the rack 31 to slow down the speed at which the second clamping portion 12 enters the second clamping slot 2311. This can reduce the noise generated by the collision between the door body 300 and the housing 200 when closing, and can also reduce the noise caused by the clamping member 10 and the locking assembly 20. In other examples, the rack structure can also be omitted, with one end of the damper 32 abutting against the second movable member and the other end of the damper hinged to the bracket 21.

[0116] In some embodiments of this application, please refer to Figure 2A-2E The locking assembly 20 further includes a second micro switch 28 , which is disposed on the bracket 21 . When the second holding portion 12 is in the second locking state, the second movable member 231 triggers the second micro switch 28 .

[0117] The connection between the second micro switch 28 and the bracket 21 includes, but is not limited to, snap connection, screw connection, or bonding.

[0118] The second micro switch 28 can provide a door-closing signal when the second latching portion 12 is engaged with the second latching slot 2311, thereby ensuring that the cooking appliance 1000 can continue cooking after the door is closed. Taking a microwave oven as an example, this design can prevent the microwave oven from being started when the door is not tightly closed, thereby avoiding potential harm to the human body caused by microwave leakage.

[0119] In some embodiments of this application, please refer to Figure 2A-2EThe second movable member 231 includes a rotating hook arm 2313, and the locking assembly 20 also includes a blocking and limiting member 24. The blocking and limiting member 24 is located on a side of the second movable member 231 having a second slot 2311. The blocking and limiting member 24 is movably installed on the bracket 21. The blocking and limiting member 24 has a limiting slot 241. When the second holding portion 12 moves out from the holding end 211, the limiting slot 241 is engaged with the rotating hook arm 2313 to limit the rotation of the second movable member 231 relative to the bracket 21. The blocking and limiting member 24 is configured to be driven by the second holding portion 12 to separate the limiting slot 241 from the rotating hook arm 2313.

[0120] As an example, the second movable part 231 is also provided with a first guide surface 23112, and the first guide surface 23112 is connected to the groove wall of the second card slot 2311. In the process of the second holding part 12 being clamped into the second card slot 2311, the second holding part 12 first abuts against the first guide surface 23112. The second holding part 12 is driven by external force to rotate the second movable part 231. At this time, the position of the second card slot 2311 relative to the second holding part 12 changes, and slides into the second card slot 2311 under the guidance of the first guide surface 23112, and finally moves into the second card slot 2311, while maintaining the clamped state under the action of the second elastic part 232.

[0121] As an example, the second engaging slot 2311 has an escape portion 23111, which allows a portion of the second engaging portion 12 to have a certain amount of space to move within the second engaging slot 2311 when the second engaging portion 12 enters the second engaging slot 2311, thereby reducing the probability of interference between the two during the engaging process. A portion of the escape portion 23111 can be connected to the first guide surface 23112. In other examples, the width of the second engaging slot 2311 can be made slightly larger than the width of the second engaging portion 12, which can also reduce the probability of interference between the second engaging portion 12 and the second engaging slot 2311 during the engaging process.

[0122] As an example, the second retaining portion 12 is a hook-shaped structure, comprising a hook rod 122 and a hook head 121. The hook head 121 is connected to the hook rod 122, specifically by welding or integral molding. A relief groove is formed between the hook head 121 and the hook rod 122 to accommodate at least a portion of the rotating hook arm 2313 during the engagement process. The cross-sectional area of the hook rod 122 increases from the hook head 121 to the hook rod 122, thereby increasing its strength and reducing stress concentration on the hook rod 122 during engagement.

[0123] The limiting slot 241 may be, but is not limited to, a U-shaped slot, a trapezoidal slot, or a rectangular slot, and may be specifically designed according to actual needs.

[0124] The blocking member 24 and the bracket 21 can be connected in a sliding manner ( Figure 2E As shown), the blocking member 24 and the bracket 21 can also be rotatably connected ( Figure 2A-2D shown).

[0125] As an example, see Figure 2E The blocking member 24 is slidably connected to the bracket 21 along the first direction Y. Specifically, the bracket 21 is provided with a guide groove extending along the first direction Y. The blocking member 24 is disposed within the guide groove and is movable along the first direction Y. A spring or an elastic telescopic rod is provided between the guide groove and the blocking member 24.

[0126] As an example, a second guide surface 242 is provided on the side of the blocking and limiting member 24 facing the snap-in end 211. Along the direction from the second clamping portion 12 to the first clamping portion 11, the size of the second guide surface 242 to the snap-in end 211 along the snap-in direction X shows an increasing trend. In the process of the second clamping portion 12 being snapped into the second slot 2311, the blocking and limiting member 24 is driven by the second clamping portion 12 and can squeeze the second guide surface 242 to move the limiting slot 241 away from the rotating hook arm 2313, so that the limiting slot 241 can be separated from the rotating hook arm 2313, so as to release the restriction on the rotation of the second movable member 231 relative to the bracket 21, and finally realize the snap connection between the second clamping portion 12 and the second slot 2311.

[0127] As an example, a first magnet and a second magnet are provided on the side of the blocking and limiting member 24 facing away from the second movable member 231. The first magnet is connected to the blocking and limiting member 24 and can also serve as a part of the blocking and limiting member 24. The second magnet is fixed to the bracket 21 and can also serve as a part of the bracket 21. The first magnet and the second magnet are arranged opposite to each other, and their magnetic poles facing each other are the same. The repulsive force of the first magnet and the second magnet can keep the rotating hook arm 2313 and the limiting slot 241 in a locked state.

[0128] By disposing the rotating hook arm 2313 and the limiting slot 241 , the probability of the second movable member 231 being abnormally triggered can be reduced, thereby improving the reliability of the engagement between the second holding portion 12 and the second slot 2311 .

[0129] In some embodiments of this application, please refer to Figure 2A-2E The blocking and limiting member 24 is rotatably connected to the bracket 21. The locking assembly 20 also includes a fourth elastic member 25. The fourth elastic member 25 is located on the side of the blocking and limiting member 24 away from the second movable member 231. The fourth elastic member 25 is respectively against the bracket 21 and the blocking and limiting member 24. When the rotating hook arm 2313 is in a locked state, the elastic force of the fourth elastic member 25 can cause the limiting slot 241 and the rotating hook arm 2313 to maintain a locked state.

[0130] The fourth elastic member 25 includes a compression spring, an elastic telescopic rod or a torsion spring.

[0131] As an example, the fourth elastic member 25 is a torsion spring. The fourth elastic member 25 can be set on the rotating shaft that rotates the blocking and limiting member 24 and the bracket 21, or it can be not set on the rotating shaft, and one end of the fourth elastic member 25 is abutted against the blocking and limiting member 24, and the other end is abutted against the bracket 21, and the fourth elastic member 25 is located on the side of the blocking and limiting member 24 away from the second movable member 231.

[0132] As an example, the fourth elastic member 25 is a compression spring. The fourth elastic member 25 is located on the side of the blocking and limiting member 24 that is away from the second movable member 231, and deviates from the circumferential direction of rotation of the blocking and limiting member 24 and the bracket 21. One end of the fourth elastic member 25 is against the bracket 21, and the other end is against the blocking and limiting member 24. Under the elastic force of the fourth elastic member 25, the blocking and limiting member 24 has a tendency to rotate toward the second movable member 231, so as to maintain the clamping state of the limiting slot 241 and the rotating hook arm 2313.

[0133] The setting of the fourth elastic member 25 can keep the limiting slot 241 and the rotating hook arm 2313 in a locked state, so as to reduce the probability of the second movable member 231 being triggered abnormally, thereby further improving the reliability of the connection between the second clamping portion 12 and the second clamping slot 2311; and the limiting slot 241 and the rotating hook arm 2313 can be released from the locked state by overcoming the elastic force of the fourth elastic member 25, thereby facilitating the connection operation between the second clamping portion 12 and the second clamping slot 2311. At the same time, during the connection process, a damping force can also be provided to the second clamping portion 12 to slow down the speed of entering the second clamping slot 2311.

[0134] According to an embodiment of the present application, a cooking appliance 1000 is proposed, comprising a housing 200, a door body 300, and the door lock device 100 of the above embodiment. A cavity is formed inside the housing 200, and a doorway communicating with the cavity is provided at the front end of the housing 200. The door body 300 is configured to cover the doorway, and one end of the door body 300 is pivotally connected to the housing 200. A clamping member 10 is mounted on the door body 300, and a first clamping portion 11 extends from one side of the door body 300 toward the doorway. The locking assembly 20 is mounted in the housing 200. When the door body 300 covers the doorway, the first clamping portion 11 is in a locked state. When the door body 300 is in an open state, the first clamping portion 11 is in an unlocked state.

[0135] The cooking appliance 1000 may be, but is not limited to, a microwave oven or an electric oven.

[0136] The cavity is the space where food is cooked.

[0137] The holding member 10 can be installed on the door body 300 by screws, welding or riveting.

[0138] Taking the cooking appliance 1000 as a microwave oven as an example, the spacing direction between the first clamping part 11 and the second clamping part 12 is the vertical direction. When the microwave oven is closing the door, the first clamping part 11 and the second clamping part 12 are clamped with the locking assembly 20, which can improve the reliability of closing the door.

[0139] Since the cooking appliance 1000 includes all the technical features of the door lock device 100, the effects are the same as those described above and will not be described in detail here.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A door lock device for locking the door and housing of a cooking appliance, characterized in that: include: A clamping member, used for being mounted on the door body, wherein the clamping member comprises a first clamping portion; The locking assembly comprises a bracket and a first locking mechanism, the bracket being used to be connected to the shell, the first locking mechanism being movably connected to the bracket, the first locking mechanism having a first card slot and an abutting surface, the bracket being provided with a card-engaging end, the first holding portion having a first locking state which moves from the card-engaging end to the abutting surface and slides from the abutting surface into the first card slot, and a first unlocking state which moves out of the first card slot and exits from the card-engaging end, when the first holding portion is not engaged, the shortest distance between any position on the abutting surface and the card-engaging end shows an increasing trend along the card-engaging direction of the first holding portion, the first locking mechanism is set to be movable relative to the bracket when driven by the first holding portion, and the first locking mechanism is used to provide the first holding portion with an elastic force which slows down the first holding portion from entering the first card slot.

2. The door lock device according to claim 1, characterized in that: The first locking mechanism comprises: a first movable member rotatably connected to the bracket, the first movable member having the first latching groove and the abutting surface, and when the first holding portion switches from the first unlocked state to the first locked state, the first holding portion drives the first locking mechanism to rotate relative to the bracket; A first elastic member, one end of the first elastic member is connected to the bracket, and the other end of the first elastic member is connected to the first movable member. The first elastic member is used to provide the elastic force to the first movable member so that the first movable member has the tendency to slow down the first holding portion from entering the first slot.

3. The door lock device according to claim 2, characterized in that: The locking assembly further includes a first micro switch, which is disposed on the first movable member. When the first clamping portion is in the first locking state, the first clamping portion triggers the first micro switch to generate a door closing signal.

4. The door lock device according to claim 2, characterized in that: The first holding portion is a hook body structure, which includes a hook head and a hook handle. The hook head is connected to the hook handle, and the hook head and the hook handle jointly define an avoidance groove. When the first holding portion is in the first locking state, part of the hook head is located in the first holding slot, and part of the first movable part is located in the avoidance slot.

5. The door lock device according to any one of claims 1 to 4, characterized in that: The locking member also includes a second locking portion, the second locking portion is formed with a hook structure, the second locking portion and the first locking portion are spaced apart along the first direction, the locking assembly also includes a second locking mechanism, the second locking mechanism and the first locking mechanism are spaced apart along the first direction, the second locking mechanism is movably connected to the bracket, the second locking mechanism has a second card slot, the second locking portion has a second locking state of entering and engaging with the second card slot from the card-in end, and a second unlocking state of moving out of the second card slot and exiting from the card-in end, the first direction is perpendicular to the card-in direction, when the second locking mechanism is in the second unlocking state, the second locking mechanism has a tendency to slow down the second locking portion from entering the second card slot, and when the second locking portion is in the second locking state, the second locking mechanism has a tendency to prevent the second locking portion from separating from the second card slot.

6. The door lock device according to claim 5, characterized in that: The second locking mechanism comprises: a second movable member, rotatably connected to the bracket, the second movable member having the second slot; A second elastic member, a first end of the second elastic member is rotatably connected to the bracket, a second end of the second elastic member is rotatably connected to the second movable member, when the second clamping portion is in the second unlocking state, the second elastic member has a tendency to slow down the second clamping portion from entering the second clamping slot, and when the second clamping portion is in the second locking state, the second elastic member has a tendency to keep the second clamping portion engaged with the second clamping slot.

7. The door lock device according to claim 6, characterized in that: There is a first rotation center between the first end and the bracket, a second rotation center between the second end and the second movable member, and a third rotation center between the second movable member and the bracket. On the first cross section of the second movable member, the line connecting the third rotation center to the first rotation center is a first straight line. During the process of switching the second holding portion from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects with the first straight line, and the axis of rotation of the second movable member relative to the bracket is perpendicular to the first cross section.

8. The door lock device according to claim 6, characterized in that: The second locking mechanism further includes a third elastic member, which is disposed on the bracket. When the second clamping portion is in the second unlocking state, the third elastic member abuts against the second movable member, and the third elastic member is in a compressed state.

9. The door lock device according to claim 6, characterized in that: The locking assembly further includes a damping component, which is disposed on the bracket and is used to provide a damping force to the second movable member to slow down the speed at which the second holding portion is inserted into the second slot.

10. The door lock device according to claim 9, characterized in that: The second movable part has a partially convex arc surface, and the axis of rotation of the second movable part relative to the bracket coincides with the axis of the arc surface. The arc surface is provided with a plurality of meshing teeth continuously arranged along the circumference of the arc surface. The damping component includes a damper and a rack. The rack is slidably connected to the bracket along the first direction, and the rack is engaged with the meshing teeth. Along the length direction of the rack, the rack is configured to be driven and to make a linear motion relative to the bracket, and the movable end of the damper is connected to one end of the rack along the length direction.

11. The door lock device according to claim 6, characterized in that: The locking assembly further includes a second micro switch, which is disposed on the bracket. When the second clamping portion is in the second locking state, the second movable member triggers the second micro switch to generate a door closing signal.

12. The door lock device according to claim 6, characterized in that: The second movable part includes a rotating hook arm, and the locking assembly also includes a blocking and limiting part, which is located on a side of the second movable part having the second slot. The blocking and limiting part is movably installed on the bracket, and the blocking and limiting part has a limiting slot. When the second clamping part moves out from the clamping end, the limiting slot is engaged with the rotating hook arm to limit the rotation of the second movable part relative to the bracket. The blocking and limiting part is configured to be driven by the second clamping part to separate the limiting slot from the rotating hook arm.

13. The door lock device according to claim 12, characterized in that: The blocking and limiting member is rotatably connected to the bracket, and the locking assembly also includes a fourth elastic member, which is located on the side of the blocking and limiting member away from the second movable member. The fourth elastic member is respectively abutted against the bracket and the blocking and limiting member. When the rotating hook arm is in a locked state, the elastic force of the fourth elastic member can cause the limiting slot and the rotating hook arm to maintain a locked state.

14. A cooking appliance, characterized in that: include: A housing having a cavity formed therein and a doorway communicating with the cavity provided at a front end of the housing; a door body, the door body being configured to cover the doorway, one end of the door body being pivotally connected to the housing; According to the door lock device as described in any one of claims 1 to 13, the holding member is installed on the door body, and the first holding portion extends from the side of the door body toward the doorway, the locking assembly is installed in the shell, when the door body covers the doorway, the first holding portion is in a first locking state, and when the door body is in an open state, the first holding portion is in the first unlocking state.

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