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 locking assembly used for being installed on a shell, and the locking assembly is provided with a clamping-in end; the clamping piece is used for being in sliding connection with the door body in the first direction and comprises a first clamping part and a second clamping part, the first clamping part and the second clamping part are arranged at intervals in the first direction, the first clamping part is provided with a first hook body, a first receding groove is formed in the side, in the first direction, of the first hook body, and the second clamping part is provided with a second hook body; a second avoiding groove is formed in one side, in the first direction, of the second hook body, and the orientation of the first avoiding groove is the same as that of the second avoiding groove. When the door body is closed, the elastic force of the first elastic piece can provide a buffering effect for the door body so as to reduce the impact sound of the door body, and meanwhile, the clamping speed of the clamping piece can be slowed down so as to reduce the clamping sound, so that the door closing noise is reduced, and the use experience is improved.

Description

Technical Field

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

[0002] In related art, cooking appliances have a housing and a door, which is rotatably mounted on the housing. The door can be opened or closed by external force. During the closing process, the door is locked by a door lock. If the door is closed with great force, the door lock quickly locks the door, causing the door to collide with the housing, which can easily generate loud noise and affect 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, the door lock device comprising:

[0005] A locking assembly, used for being mounted on the housing, the locking assembly being provided with a snap-in end;

[0006] The latching member is used to be slidably connected to the door body along the first direction, and the latching member includes a first latching portion and a second latching portion, the first latching portion and the second latching portion are arranged at intervals along the first direction, the first latching portion has a first hook body, a first avoidance groove is provided on one side of the first hook body along the first direction, the second latching portion has a second hook body, and the second hook body has a second avoidance groove is provided on one side along the first direction, the directions of the first avoidance groove and the second avoidance groove are the same, the latching member is configured to be driven to drive the first hook body and the second hook body to lock with different positions of the locking assembly respectively, when the first hook body and the second hook body are both in the locked state, the first part of the locking assembly is clamped in the first avoidance groove, and the second part of the locking assembly is clamped in the second avoidance groove, the first part and the second part are arranged at intervals along the first direction, and the first direction is perpendicular to the clamping direction of the latching member;

[0007] A first elastic member, one end of the first elastic member is connected to the holding member, and the other end of the first elastic member is used to connect to the door body. The first elastic member has a first state and a second state. In the first state, the elastic force of the first elastic member has a tendency to slow down the first holding portion and the second holding portion from being respectively engaged with the locking assembly. In the second state, the elastic force of the first elastic member has a tendency to keep the first holding portion and the second holding portion from being respectively engaged with the locking assembly along the first direction.

[0008] When the door is closed, the elastic force of the first elastic member can provide a buffering effect for the door to reduce the impact sound of the door, and at the same time slow down the clamping speed of the clamping member to reduce the clamping sound, thereby reducing the noise of closing the door to improve the user experience.

[0009] In one embodiment of the present application, the locking assembly includes a bracket, the bracket is provided with a card-in end, the bracket has a card-in channel, one end of the card-in channel passes through the card-in end, and the other end of the card-in channel has a card interface, the card-in channel is provided with an abutment surface, and along the direction from the second holding portion to the first holding portion, the minimum size from any position on the abutment surface to the card-in end tends to increase, the first hook body has a first locking state that moves from the card-in end into the abutment surface and slides from the abutment surface to the card interface, and a first unlocking state that is separated from the card interface, the part of the wall of the card-in channel that has the abutment surface is the first part, and when the first hook body slides on the abutment surface, the first elastic member is in the first state, so that the first hook body and the abutment surface generate an extrusion force, and when the first holding portion is in the first locking state, the first elastic member is in the second state to maintain the card connection between the first hook body and the card interface.

[0010] In one embodiment of the present application, the first hook body includes a first hook head and a first hook arm, the first hook head and the first hook arm are connected, and the first hook head and the first hook arm jointly define a first avoidance groove, the first hook body includes a first hook head and a first hook arm, the first hook head and the first hook arm are connected, and the first hook head and the first hook arm jointly define a first avoidance groove, the first edge of the card interface is located in the first avoidance groove, when the first hook body is in the first locking state, along the direction from the first clamping portion to the second clamping portion, the gap between the surface of the first hook head facing the first edge and the first edge shows an increasing trend, and the gap is the dimension along the said clamping direction.

[0011] In one embodiment of the present application, the locking assembly also includes a first locking mechanism, which is arranged on the bracket. The first locking mechanism has a first card slot, and the second hook body has a second locking state in which it enters and engages with the first card slot from the card-in end, and a second unlocking state in which it is separated from the first card slot and exits from the card-in end.

[0012] In one embodiment of the present application, the first locking mechanism includes:

[0013] A first movable member is rotatably connected to the bracket, wherein the axis of rotation of the first movable member relative to the bracket is perpendicular to the first direction, the first movable member has a first slot, and a portion of the wall of the first slot serves as the second portion;

[0014] The second elastic member, the first end of the second elastic member is rotatably connected to the bracket and has a first rotation center, the second end of the second elastic member is rotatably connected to the first movable member and has a second rotation center, the center of the rotation connection of the first movable member relative to the bracket is the third rotation center, on the first cross section of the first movable member, the straight line passing through the third rotation center and the second rotation center is the first straight line, in the process of the second hook body switching from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects the first straight line, and the axis of rotation of the first movable member relative to the bracket is perpendicular to the first cross section.

[0015] In one embodiment of the present application, the first locking mechanism further includes a third elastic member, which is disposed on the bracket. When the second hook is in the second unlocked state, the third elastic member abuts against the first movable member, and the third elastic member is in a compressed state.

[0016] In one embodiment 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 first movable member to slow down the speed at which the second hook body is inserted into the first slot.

[0017] In one embodiment of the present application, the first movable part has a partially convex arc surface, the axis of rotation of the first 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 the first direction, the rack is engaged 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 cooperates with one end of the rack in the length direction.

[0018] In one embodiment of the present application, the locking assembly further includes a first micro switch, which is disposed on the bracket. When the first hook is in a locked state, the first hook triggers the first micro switch.

[0019] In one embodiment of the present application, the locking assembly further includes a second micro switch, which is disposed on the bracket. When the second hook is in a locked state, the second hook triggers the second micro switch.

[0020] In a second aspect, the present application provides a cooking appliance, comprising:

[0021] A housing is formed with a cavity inside, and a front end of the housing is provided with a door communicating with the cavity;

[0022] The door body is configured to cover the doorway, and one end of the door body is pivotally connected to the housing;

[0023] The door lock device of the first aspect has a holding member that is slidably connected to the door body along a first direction, the other end of the first elastic member is connected to the door body, the first holding portion and the second holding portion extend from one 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 hook body and the second hook body are respectively locked with different positions of the locking assembly. When the door body is in an open state, the first hook body and the second hook body are respectively separated from the locking assembly.

[0024] 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

[0025] 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:

[0026] Figure 1 This is an exploded view of a door lock device according to one embodiment of the present application;

[0027] Figure 2 This is an axonometric view of a bracket in a door lock device according to one embodiment of the present application;

[0028] Figure 3 An exploded view illustrating the positional relationship between a holding member, a first elastic member, and a door body in a door lock device according to an embodiment of the present application;

[0029] Figure 4A A side view of a door lock device in an unlocked state according to an embodiment of the present application;

[0030] Figure 4B A side view of a door lock device according to an embodiment of the present application showing a process in which a card holder is engaged with a locking assembly;

[0031] Figure 4C This is a side view of a door lock device in a locked state according to an embodiment of the present application;

[0032] Figure 4D This is a side view of a door lock device in an unlocked state according to another embodiment of the present application;

[0033] Figure 5A This is an axonometric diagram of a cooking appliance from a first perspective according to an embodiment of the present application;

[0034] Figure 5B This is a partial axonometric diagram of a cooking appliance at a second time according to an embodiment of the present application.

[0035] The accompanying drawings in the specific implementation manner are as follows:

[0036] 1000. Cooking appliances;

[0037] 100. Door locking device;

[0038] 200, housing;

[0039] 300, door body; 310, second hanging part;

[0040] 10. Clamping member; 11. First clamping portion; 111. First hook; 112. First hook arm; 113. First avoidance groove; 12. Second clamping portion; 121. Second hook; 122. Second hook arm; 123. Second avoidance groove; 13. Mounting portion; 131. First hanging portion;

[0041] 20. Locking assembly; 21. Bracket; 211. Snap-in end; 212. Snap-in channel; 213. Abutment surface; 214. Rotating shaft; 215. Through hole; 22. First locking mechanism; 221. First movable member; 2211. First snap-in slot; 22111. Avoidance portion; 22112. First guide surface; 2212. Engaging teeth; 222. Second elastic member; 2221. First end; 2222. Second end; 24. Third elastic member; 25. Cover plate; 26. First microswitch; 27. Second microswitch;

[0042] 30. Damping component; 31. Rack; 32. Damper;

[0043] 40. a first elastic member;

[0044] X, snap-in direction; Y, first direction; Z, first straight line. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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).

[0051] 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.

[0052] 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.

[0053] According to the embodiment of the present application, a door lock device 100 is provided. Figure 1-5BThe door lock device 100 is used to lock the door 300 of the cooking appliance 1000 with the housing 200. The door lock device 100 includes a locking assembly 20, a holding member 10, and a first elastic member 40. The locking assembly 20 is used to be installed on the housing 200 and has a locking end 211. The clamping member 10 is used to be slidably connected to the door body 300 along the first direction Y. The clamping member 10 includes a first clamping portion 11 and a second clamping portion 12. The first clamping portion 11 and the second clamping portion 12 are arranged at intervals along the first direction Y. The first clamping portion 11 has a first hook body, and the first hook body is provided with a first avoidance groove 113 on one side along the first direction Y. The second clamping portion 12 has a second hook body, and the second hook body is provided with a second avoidance groove 123 on one side along the first direction Y. The direction of the first avoidance groove 113 is the same as the direction of the second avoidance groove 123. The clamping member 10 is configured to be driven to drive the first hook body and the second hook body to lock with different positions of the locking assembly 20 respectively. When the first hook body and the second hook body are both in the locked state, the first part of the locking assembly 20 is clamped in the first avoidance groove 113, and the second part of the locking assembly 20 is clamped in the second avoidance groove 123. The first part and the second part are arranged at intervals along the first direction Y, and the first direction Y is perpendicular to the clamping direction X of the clamping member 10. One end of the first elastic member 40 is connected to the holding member 10, and the first elastic member 40 has a first state and a second state. In the first state, the other end of the first elastic member 40 is used to connect with the door body 300, and the elastic force of the first elastic member 40 has a tendency to slow down the first holding portion 11 and the second holding portion 12 from being respectively engaged with the locking assembly 20. In the second state, the elastic force of the first elastic member 40 has a tendency to keep the first holding portion 11 and the second holding portion 12 engaged with the locking assembly 20 along the first direction Y respectively.

[0054] As an example, the clamping member 10 may further include a mounting portion 13, with the first clamping portion 11 and the second clamping portion 12 respectively connected to the mounting portion 13. The connection methods may include screw connection, riveting, welding, or integral molding. The first clamping portion 11 may be a metal member or a plastic member. The second clamping portion 12 may be a metal member or a plastic member.

[0055] A guide groove extending along the first direction Y may be provided inside the door body 300 , and the holding member 10 is provided in the guide groove so that the holding member 10 moves along the first direction Y in the guide groove.

[0056] The first elastic member 40 includes a compression spring, a tension spring, or an elastic telescopic rod.

[0057] As an example, see Figure 1 and Figure 3The first elastic member 40 is a tension spring, one end of which is connected to the mounting portion 13, and the other end of which is connected to the door body 300. A receiving cavity can be provided inside the door body 300 to conveniently hide the tension spring and part of the retaining member 10. The first hook and the second hook head 121 extend from one side of the door body 300 to facilitate locking with the locking assembly 20.

[0058] The door body 300 and the housing 200 can be connected by a door lock device 100. Specifically, one end of the door body 300 is rotatably connected to the housing 200, while the other end of the door body 300 is locked to the housing 200 by the door lock device 100. Multiple door lock devices 100 can also be provided, and the door body 300 can be detachably locked to the housing 200 by the door lock device 100.

[0059] It can be understood that when the door body 300 is rotatably mounted on the housing 200, the engaging direction X of the latch 10 is a circumferential direction, and the direction perpendicular to both the radial and tangential directions of rotation of the latch 10 is the first direction Y. When the door body 300 is detachably connected to the housing 200 via the door lock device 100, the engaging direction X is a linear direction, and the first direction Y is perpendicular to the linear direction.

[0060] When the door body 300 is closed, the elastic force of the first elastic member 40 can provide a buffering effect for the door body 300 to reduce the impact sound of the door body 300. At the same time, it can also slow down the clamping speed of the clamping member 10 to reduce the clamping sound, thereby reducing the noise of closing the door to improve the user experience.

[0061] In one embodiment of the present application, please refer to Figure 1 、 Figure 2 、 Figures 4A-4C The locking assembly 20 includes a bracket 21, the bracket 21 is provided with a snap-in end 211, the bracket 21 has a snap-in channel 212, one end of the snap-in channel 212 passes through the snap-in end 211, the other end of the snap-in channel 212 has a card interface, the snap-in channel 212 is provided with an abutment surface 213, along the direction from the second holding portion 12 to the first holding portion 11, the minimum size from any position on the abutment surface 213 to the snap-in end 211 is in an increasing trend, and the first hook has a moving direction from the snap-in end 211 to the abutment surface 213. 13, and slides from the abutment surface 213 to the first locking state of the card interface, and the first unlocking state separated from the card interface, the part of the wall of the card channel 212 having the abutment surface 213 is the first part, and when the first hook slides on the abutment surface 213, the first elastic member 40 is in the first state, so that the first hook and the abutment surface 213 generate an extrusion force, and when the first holding portion 11 is in the first locking state, the first elastic member 40 is in the second state to maintain the clamping connection between the first hook and the card interface.

[0062] Any position on the abutting surface 213 refers to a position along the direction from the second clamping portion 12 to the first clamping portion 11 .

[0063] The abutting surface 213 may be a plane, or a convex or concave curved surface.

[0064] Figure 4A FIG2 schematically shows a structure in which the abutting surface 213 is a plane.

[0065] As a result, the abutting surface 213 can form an inclined surface. During the clamping process of the first clamping portion 11, as the first hook body moves relative to the locking assembly 20, the first hook body is clamped to the clamping interface under the action of the first elastic member 40. During the closing process, the first elastic member 40 is stretched or compressed, and the first hook head 111 and the clamping channel 212 generate sliding friction to cushion the impact force on the shell 200 during the closing process, and reduce the locking speed of the first clamping portion 11 to reduce the noise of closing the door.

[0066] In one embodiment of the present application, please refer to Figure 4A The first hook body includes a first hook head 111 and a first hook arm 112, the first hook head 111 and the first hook arm 112 are connected, and the first hook head 111 and the first hook arm 112 jointly define a first avoidance groove 113, the first hook body includes a first hook head 111 and the first hook arm 112, the first hook head 111 and the first hook arm 112 are connected, and the first hook head 111 and the first hook arm 112 jointly define a first avoidance groove 113, the first edge of the card interface is located in the first avoidance groove 113, when the first hook body is in the first locking state, along the direction from the first clamping portion 11 to the second clamping portion 12, the gap between the surface of the first hook head 111 facing the first edge and the first edge shows an increasing trend, and the gap is the dimension along the clamping direction X.

[0067] The first hook head 111 and the first hook arm 112 can be fixed by welding, integrally forming, or bonding.

[0068] The cross-section of the first hook arm 112 can adopt a gradient structure. Along the direction from the locking assembly 20 to the clamping member 10, the cross-section area of the first hook arm 112 increases progressively. This structure can reduce the stress concentration during the locking process of the first clamping member 10, thereby reducing the risk of the first clamping member 10 breaking and increasing the service life of the first clamping member 10.

[0069] When the door body 300 is pulled outward, the first hook head 111 is subjected to the friction force of the first edge, and the direction of the force component is the same as the first direction Y, which can drive the holding component 10 to move along the first direction Y, thereby making the first hook head 111 break away from the restriction of the card interface to release the locking process, that is, the unlocking operation of the first holding component 10 is completed by manually pulling the door. During the locking process, the locking operation is achieved by pushing the door body 300 to move, which is simple and convenient to operate.

[0070] In one embodiment of the present application, please refer to Figures 4A-4C The locking assembly 20 also includes a first locking mechanism 22, which is arranged on the bracket 21. The first locking mechanism 22 has a first card slot 2211, and the second hook body has a second locking state in which it enters and engages with the first card slot 2211 from the card-in end 211, and a second unlocking state in which it is separated from the first card slot 2211 and exits from the card-in end 211.

[0071] As an example, the first slot 2211 may be substantially a U-shaped slot.

[0072] As an example, the second hook body includes a second hook head 121 and a second hook arm 122 . The second hook head 121 and the second hook arm 122 are connected, and the second hook head 121 and the second hook arm 122 jointly define a second avoidance groove 123 .

[0073] After the second hook body is engaged, a portion of the second hook head 121 is located in the second engaging groove.

[0074] In one embodiment of the present application, please refer to Figures 4A-4D The first locking mechanism 22 includes a first movable member 221 and a second elastic member 222. The first movable member 221 is rotatably connected to the bracket 21. The axis of rotation of the first movable member 221 relative to the bracket 21 is perpendicular to the first direction Y. The first movable member 221 has a first slot 2211, and part of the wall of the first slot 2211 is the second portion. The first end 2221 of the second elastic member 222 is rotatably connected to the bracket 21 and has a first rotation center. The second end 2222 of the second elastic member 222 is rotatably connected to the first movable member 221 and has a second rotation center. The center of rotation of the first movable member 221 relative to the bracket 21 is the third rotation center. On a first cross section of the first movable member 221, a straight line passing through the third rotation center and the second rotation center is a first straight line Z. During the switching process of the second hook from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects with the first straight line Z. The axis of rotation of the first movable member 221 relative to the bracket 21 is perpendicular to the first cross section.

[0075] As an example, the first movable part 221 is also provided with a first guide surface 22112, and the first guide surface 22112 is connected to the groove wall of the first slot 2211. In the process of the second hook body being clamped into the first slot 2211, the second hook body first abuts against the first guide surface 22112, and the second hook body is driven by external force to rotate the first movable part 221. At this time, the position of the first slot 2211 relative to the second hook body changes, and slides into the first slot 2211 under the guidance of the first guide surface 22112, and finally moves into the first slot 2211, while maintaining the clamped state under the action of the second elastic part 222.

[0076] As an example, the first engaging slot 2211 has a relief portion 22111. During the engagement process of the second hook body, as the first movable member 221 rotates, the orientation of the notch of the first engaging slot 2211 changes, and the relief portion 22111 can avoid the first engaging slot 2211, thereby reducing the probability of interference during the engagement process. A portion of the relief portion 22111 can engage with the first guide surface 22112. In other examples, the width of the first engaging slot 2211 is slightly larger than the width of the second retaining portion 12 (the dimension along the engagement direction X) to further reduce the probability of interference and resulting jamming during the engagement process.

[0077] The second 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 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 the first compression spring is disposed between the other end of the first rod and the second rod.

[0078] As an example, see Figure 2 and Figure 4A The bracket 21 has a rotating shaft 214, and the first movable member 221 is provided with an axis hole, which is rotatably matched with the rotating shaft 214.

[0079] As an example, the snap-in end 211 may be provided with a through hole 215 , and the first hook 111 may be snap-fitted with the first locking mechanism 22 after passing through the hole 215 .

[0080] Figures 4A-4C exemplarily shows a structural diagram in which the second elastic member 222 is a torsion spring and is connected to the bracket 21 and the first movable member 221 respectively.

[0081] As an example, see Figure 4DThe second elastic member 222 can be an elastic telescopic rod, one end of which is hinged to the bracket 21, and the other end of which is hinged to the first movable member 221. In the first cross-section, the center of the hinge axis between the elastic telescopic rod and the bracket 21 is the first rotation center. The hinge center between the second elastic telescopic rod and the first movable member 221 is the second rotation center. During the engagement of the second hook, the first movable member 221 rotates, and the elastic telescopic rod rotates relative to the bracket 21. When the second hook is not engaged, the first movable member 221 remains in an unlocked state due to the elastic force of the second elastic telescopic rod. During the engagement of the second hook, the second hook overcomes the elastic force of the second elastic telescopic rod and causes the first movable member 221 to rotate. When the second rotation center moves to the first straight line Z, the torque exerted by the elastic force of the elastic telescopic rod on the first movable member 221 is zero. As the second hook further causes the first movable member 221 to rotate, the direction of the torque exerted by the elastic telescopic rod on the first movable member 221 becomes opposite to that before engagement.

[0082] Therefore, during the engagement or unlocking process of the second hook body, the second elastic member 222 can provide elastic forces in different directions to the first movable member 221 to generate torques in different directions, thereby slowing down the engagement speed during the engagement process of the second hook body and maintaining the locked state after the second hook body is locked.

[0083] In one embodiment of the present application, please refer to Figures 4A-4C The first locking mechanism 22 further includes a third elastic member 24, which is disposed on the bracket 21. When the second hook is in the second unlocked state, the third elastic member 24 abuts against the first movable member 221, and the third elastic member 24 is in a compressed state.

[0084] The third elastic member 24 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.

[0085] As an example, during the engaging process of the second hook body, the first movable member 221 may be separated from the third elastic member 24 when it rotates to a certain angle, or may maintain contact with the third elastic member 24 .

[0086] Before the second hook enters the snap-in end 211, the second movable part maintains balance under the action of the third elastic part 24 and the second elastic part 222. On the one hand, when the first holding portion 11 is unlocked, the third elastic part 24 can provide a buffer to reduce the impact of the first movable part 221 on the bracket 21, thereby reducing damage to the bracket 21 and extending the service life of the bracket 21. On the other hand, during the snap-in process of the second hook, the elastic force of the third elastic part 24 can offset part of the elastic force of the second elastic part 222, so as to reduce the thrust acting on the holding part 10, making the snap-in more labor-saving.

[0087] In one embodiment of the present 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 first movable member 221 to slow down the speed at which the second hook body is inserted into the first slot 2211 .

[0088] The damping component 30 includes any one of an elastic telescopic rod and a damper 32. The elastic telescopic rod can be the structure listed above.

[0089] The provision of the damping component 30 can further slow down the engaging speed of the second hook, so as to reduce the impact sound between the door 300 and the housing 200 when the door 300 of the cooking appliance 1000 is closed, and at the same time reduce the engaging sound of the second hook.

[0090] In one embodiment of the present application, please refer to Figure 1 The first movable member 221 has a partially convex arc surface. The axis of rotation of the first movable member 221 relative to the bracket 21 coincides with the axis of the arc surface. The arc surface is provided with a plurality of meshing teeth 2212 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 slidably connected to the bracket 21 along the first direction Y. The rack 31 is engaged with the meshing teeth 2212. Along the length direction of the rack 31, the rack 31 is configured to be driven and perform linear motion relative to the bracket 21. The movable end of the damper 32 cooperates with one end of the rack 31 in the length direction.

[0091] As an example, the bracket 21 is provided with a cover plate 25, 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. The damper 32 can be against the end of the rack 31, or it can be connected to the rack 31.

[0092] The damper 32 may be a one-way damper 32. In other examples, the damping component 30 may be an elastic telescopic rod, and the elastic telescopic rod may be the structure listed above.

[0093] During the engagement process of the second hook, the second hook drives the first movable member 221 to rotate. The rotation of the first movable member 221 drives the rack 31 to move along its length, thereby compressing the damper 32. The damper 32 provides a reverse damping force to slow down the speed at which the second hook enters the first engaging slot 2211. This can reduce the noise generated by the collision between the door 300 and the housing 200 when closing, and can also reduce the noise caused by the engagement of the retaining member 10 with the locking assembly 20. In other examples, the structure of the rack 31 can also be omitted, with one end of the damper 32 abutting against the first movable member 221 and the other end of the damper 32 hinged to the bracket 21.

[0094] In one embodiment of the present application, please refer to Figures 4A-4C The locking assembly 20 further includes a first micro switch 26 , which is disposed on the bracket 21 . When the first hook is in a locked state, the first hook triggers the first micro switch 26 .

[0095] The first micro switch 26 can be connected to the bracket 21 by screws, or fixed to the bracket 21 by clamping or bonding. After the first hook body is clamped, the first micro switch 26 can be located below the first hook head 111. The first hook head 111 abuts against the first micro switch 26, triggering the first micro switch 26 to generate a door closing signal.

[0096] Take cooking appliance 1000 as an example, such as a common microwave oven. During use of the microwave oven, when the oven door is closed and the first engaging portion reaches a locked state, the first hook body will accurately trigger the first microswitch 26, thereby generating a door-closing signal. For example, when the user is preparing to heat food and closes the microwave oven door, if the first hook body is not in the correct locked state, the first microswitch 26 will not be triggered, and the microwave oven will not be able to start working. Only when the first hook body successfully locks and triggers the first microswitch 26, 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.

[0097] In one embodiment of the present application, please refer to Figures 4A-4C The locking assembly 20 further includes a second micro switch 27 , which is disposed on the bracket 21 . When the second hook is in a locked state, the second hook triggers the second micro switch 27 .

[0098] The connection between the second micro switch 27 and the bracket 21 includes, but is not limited to, snap connection, screw connection, or bonding.

[0099] The second micro switch 27 can provide a door closing signal when the second hook is successfully engaged, thereby ensuring that the cooking appliance 1000 can perform cooking operations 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.

[0100] According to the embodiment of the present application, a cooking appliance 1000 is provided. Figure 1-5B , comprising a housing 200, a door body 300, and the door lock device 100 of the above embodiment, wherein a cavity is formed inside the housing 200, and a doorway connected to 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. The clamping member 10 is slidably connected to the door body 300 along a first direction Y, the other end of the first elastic member 40 is connected to the door body 300, the first clamping portion 11 and the second clamping portion 12 extend from one side of the door body 300 toward the doorway, and the locking assembly 20 is installed in the housing 200. When the door body 300 covers the doorway, the first hook and the second hook are respectively locked with the locking assembly 20 at different positions. When the door body 300 is in an open state, the first hook and the second hook are respectively separated from the locking assembly 20.

[0101] The cooking appliance 1000 may be, but is not limited to, a microwave oven or an electric oven.

[0102] The cavity is the space where food is cooked.

[0103] Taking the cooking appliance 1000 as a microwave oven as an example, the first direction Y may be the height direction of the shell 200. When the microwave oven is closing the door, the first hook and the second hook are respectively engaged with the locking assembly 20, which can improve the reliability of closing the door.

[0104] As an example, in Figure 3 In order to conveniently show the positional relationship between the first hanging portion 131 of the holding member 10, the second hanging portion 310 of the door body 300, and the first elastic member 40, the length direction of the first hook head and the length direction of the second hook body are set to be substantially perpendicular to the thickness direction of the door body 300. During the installation process, the length direction of the first hook body and the length direction of the second hook body are substantially the same as the thickness direction of the door body 300.

[0105] The first elastic member 40 can be a tension spring, the mounting portion 13 of the holding member 10 can be provided with a first hanging portion 131, the door body 300 is provided with a second hanging portion 310, one end of the tension spring is hung with the first hanging portion 131, and the other end of the tension spring is hung with the second hanging portion 310, and the first hanging portion 131 is located above the second hanging portion 310.

[0106] 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.

[0107] 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 locking assembly, used for being mounted on the housing, the locking assembly being provided with a snap-in end; and a second latching portion configured to engage with the first latching portion and the second latching portion, the first latching portion and the second latching portion being spaced apart along the first direction, the first latching portion comprising a first hook, a first avoidance groove being provided on one side of the first hook along the first direction, and a second hooking portion comprising a second avoidance groove being provided on one side of the second hook along the first direction. A first elastic member, one end of the first elastic member is connected to the holding member, and the other end of the first elastic member is used to connect to the door body. The first elastic member has a first state and a second state. In the first state, the elastic force of the first elastic member has a tendency to slow down the first holding portion and the second holding portion from being respectively engaged with the locking assembly. In the second state, the elastic force of the first elastic member has a tendency to keep the first holding portion and the second holding portion from being respectively engaged with the locking assembly along the first direction.

2. The door lock device according to claim 1, characterized in that: and a locking mechanism comprising a locking mechanism wherein the locking mechanism is configured to lock the locking mechanism and wherein the locking mechanism has a first locking mechanism and a second locking mechanism wherein the locking mechanism is configured to lock the locking mechanism.

3. The door lock device according to claim 2, characterized in that: The first hook body includes a first hook head and a first hook arm, the first hook head and the first hook arm are connected, the first hook head and the first hook arm jointly define the first avoidance groove, the first edge of the card interface is located in the first avoidance groove, when the first hook body is in the first locking state, along the direction from the first clamping portion to the second clamping portion, the gap between the surface of the first hook head facing the first edge and the first edge shows an increasing trend, and the gap is the size along the clamping direction.

4. The door lock device according to claim 2, characterized in that: The locking assembly also includes a first locking mechanism, which is arranged on the bracket. The first locking mechanism has a first card slot, and the second hook body has a second locking state in which it enters and engages with the first card slot from the card insertion end, and a second unlocking state in which it is separated from the first card slot and exits from the card insertion end.

5. The door lock device according to claim 4, characterized in that: The first locking mechanism comprises: a first movable member rotatably connected to the bracket, wherein the axis of rotation of the first movable member relative to the bracket is perpendicular to the first direction, the first movable member having the first slot, and a portion of the wall of the first slot serving as the second portion; The second elastic member, the first end of the second elastic member is rotatably connected to the bracket and has a first rotation center, the second end of the second elastic member is rotatably connected to the first movable member and has a second rotation center, the center of the rotation connection of the first movable member relative to the bracket is the third rotation center, on the first cross section of the first movable member, the straight line passing through the third rotation center and the second rotation center is the first straight line, in the process of the second hook body switching 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 first movable member relative to the bracket is perpendicular to the first cross section.

6. The door lock device according to claim 5, characterized in that: The first locking mechanism further includes a third elastic member, which is disposed on the bracket. When the second hook is in the second unlocking state, the third elastic member abuts against the first movable member, and the third elastic member is in a compressed state.

7. The door lock device according to claim 5, 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 first movable member to slow down the speed at which the second hook body is inserted into the first slot.

8. The door lock device according to claim 7, characterized in that: The first movable part has a partially convex arc surface, the axis of rotation of the first 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, 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, the movable end of the damper cooperates with one end of the rack in the length direction.

9. 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 bracket. When the first hook is in a locked state, the first hook triggers the first micro switch. And / or, the locking assembly further includes a second micro switch, which is disposed on the bracket, and when the second hook is in the locked state, the second hook triggers the second micro switch.

10. 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; The door lock device according to any one of claims 1 to 9, wherein the holding member is slidably connected to the door body along the first direction, the other end of the first elastic member is connected to the door body, the first holding portion and the second holding portion extend from the door body toward one side of the door door, and the locking assembly is installed in the shell, and when the door body covers the door door, the first hook body and the second hook body are respectively locked with different positions of the locking assembly, and when the door body is in an open state, the first hook body and the second hook body are respectively separated from the locking assembly.

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