Door lock device and cooking appliance

Abstract

The application discloses a door lock device and a cooking electric appliance. The door lock device comprises a support, a clamping piece, a rotating piece, a blocking limiting piece and a first elastic piece. The blocking limiting piece is rotatably installed on the support, and the blocking limiting piece can limit the rotation of the rotating piece when the door body is in an open state. The first elastic piece is installed on the support, and the first elastic piece abuts against the rotating piece when the door body is in the open state, and the first elastic piece is in a force storage state. In this way, the blocking limiting piece is added in the door lock device, the rotation of the rotating piece is limited when the door body is opened, and the rotating piece is prevented from being abnormally triggered. The first elastic piece is added in the door lock device, and the first elastic piece provides an auxiliary driving force for the rotating piece when the door body is closed, so that the required triggering force for closing the door is reduced.

Description

TECHNICAL FIELD

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

[0002] In the related art, a cooking electric appliance has a cavity and a door body, and the door body is rotatably installed on the cavity. The door body can be opened or closed under the action of an external force. In order to improve the safety of the cooking electric appliance during operation, for example, to prevent the cooking electric appliance from starting to work when the door body has not been completely closed, a catch is generally arranged on the door body, and the catch is movably connected to the door body by a spring. A door lock mechanism is arranged on the cavity of the cooking electric appliance, and the door lock mechanism has a bracket, the bracket forms an inclined catch portion, and the catch cooperates with the catch portion to ensure that the door body can be completely closed.

[0003] In addition, a rotatable driving lever is further formed on the bracket, and the driving lever is rotated by a pushing force of a torsional spring. During the closing process of the door body, the catch first collides with the driving lever during the process of climbing from the low slope section to the high slope section of the catch portion, and pushes the driving lever to rotate through the horizontal force inflection point of the torsional spring under the action of inertial force, so that the catch is engaged with the driving lever. The driving lever rotates under the action of the torsional force of the torsional spring, pulls the catch forward and moves the catch on the slope of the bracket, gradually slides over the high point of the slope, and quickly touches the micro switch contact point under the action of the spring recovery force of the door body to turn on the micro switch. The driving lever pulls the door catch forward at a slow speed under the action of the torsional force of the torsional spring, and simultaneously brings the door body to move forward synchronously to achieve door closing.

[0004] When the cooking electric appliance is in an open door state, it may be subjected to an external force or other force of a user, so that the door lock mechanism of the cooking electric appliance is abnormally triggered or mistakenly triggered, causing the driving lever of the door lock mechanism to rotate to an abnormal position. At this time, when the door body is closed again, the catch will be hindered by the driving lever and cannot be moved to the termination position again, so that the cooking electric appliance cannot be normally closed. At this time, the cooking electric appliance can only be repaired by a maintenance personnel, which has high maintenance cost and poor user experience.

[0005] In addition, when the cooking electric appliance is closed, a relatively large door closing trigger force needs to be applied to the door body to achieve the closing of the door body of the cooking electric appliance, generally 7-8 N of door closing trigger force, so that the user's door closing experience is not good. SUMMARY

[0006] The present application provides a door lock device and a cooking electric appliance, which at least solve the technical problem that a relatively large door closing trigger force needs to be applied to the door body to achieve the closing of the door body of the cooking electric appliance when the cooking electric appliance is closed.

[0007] The application provides a door lock device. The door lock device comprises a bracket, a clamping piece, a rotating piece and a damping piece, a blocking limiting piece and a first elastic piece. The bracket is arranged at an opening of a cavity. The clamping piece is arranged on a door body. The door body is arranged at the opening of the cavity. The door body is rotatably connected with the cavity to open or close the opening of the cavity. The rotating piece is arranged on the bracket and can rotate relative to the bracket. The rotating piece is arranged to cooperate with the clamping piece to drive the door body to close during closing of the door body. The damping piece is arranged on the bracket. The damping piece is arranged to provide damping force to slow down the rotating speed of the rotating piece, thereby slowing down the closing speed of the door body. The blocking limiting piece is rotatably arranged on the bracket. The blocking limiting piece is arranged to limit the rotation of the rotating piece when the door body is in an open state. The first elastic piece is arranged on the bracket. The first elastic piece is arranged to abut against the rotating piece when the door body is in the open state. The first elastic piece is in a force storage state.

[0008] In some embodiments, the bracket is provided with a first mounting seat. The first mounting seat is arranged to fix the first elastic piece.

[0009] In some embodiments, the first mounting seat is integrally arranged with the bracket or is detachably connected with the bracket.

[0010] In some embodiments, the first mounting seat is arranged on the bracket to be inclined towards the rotating piece.

[0011] In some embodiments, the first elastic piece is a compression spring.

[0012] In some embodiments, the rotating piece comprises a first rotating hook arm and a second rotating hook arm. The first rotating hook arm abuts against the first elastic piece. The blocking limiting piece comprises a limiting clamping groove. The limiting clamping groove is arranged to abut against the second rotating hook arm to limit the rotation of the rotating piece when the door body is in the open state.

[0013] In some embodiments, the door lock device further comprises a second elastic piece. The blocking limiting piece further comprises a second mounting seat. The second mounting seat is arranged on the opposite side of the blocking limiting piece from the limiting clamping groove. The first end of the second elastic piece is fixedly arranged on the second mounting seat. The second end of the second elastic piece is fixedly arranged on the bracket.

[0014] In some embodiments, the holder comprises a mounting portion and a first holding portion provided on the mounting portion, the first holding portion is formed with a hook; the rotating member is provided with a rotating slot, the rotating member can be driven by the first holding portion to close the door when the hook is engaged with the rotating slot; the first rotating hook arm and the second rotating hook arm are located on both sides of the rotating slot; the blocking stopper is further provided with a first inclined surface, when the door is closed, the first holding portion pushes the first inclined surface under the action of a pushing force, so that the blocking stopper rotates around the rotating shaft on the support as a center; when the door is closed, the first holding portion pushes the first inclined surface under the action of a pushing force, so that the blocking stopper rotates around the rotating shaft as a center, drives the rotating member to rotate in the direction of the pushing force, and the first elastic member releases the elastic restoring force as an auxiliary driving force to gradually separate from the first rotating hook arm, so that the first rotating hook arm and the second rotating hook arm are driven by the bidirectional force to rotate, and the bottom of the first holding portion always presses the top of the blocking stopper during the closing process; when the door is opened, the bottom of the first holding portion always presses the top of the blocking stopper, until the hook of the first holding portion is separated from the rotating slot, so that the limiting slot limits the second rotating hook arm, then the first holding portion is separated from the blocking stopper, and the first rotating hook arm abuts against the first elastic member.

[0015] In some embodiments, the blocking stopper further comprises a second inclined surface located on the opposite side of the limiting slot from the first inclined surface, and the second inclined surface is spaced apart from the first holding portion by a predetermined distance when the blocking stopper rotates.

[0016] In some embodiments, the holder further comprises a second holding portion provided on the mounting portion, and the second holding portion is spaced apart from the first holding portion; the door lock device further comprises a first locking member and a first micro switch provided on the support, and the first micro switch is used to control the first locking member to lock the second holding portion; when the second holding portion contacts the first micro switch, the first micro switch is triggered, so that the second holding portion is locked by the first locking member.

[0017] In some embodiments, the door lock device further comprises a third elastic member connecting the support and the rotating member, the third elastic member can balance the forces of the first rotating hook arm and the second rotating hook arm after the door is opened, so that the first rotating hook arm and the second rotating hook arm are in a balanced position; the third elastic member can apply an elastic force to the rotating member to rotate the rotating member when the rotating member cooperates with the holder, so as to drive the door to close by the holder.

[0018] In some embodiments, the door locking device further comprises a second micro switch and a second locking member arranged on the bracket, the second micro switch is used to control the second locking member to lock the first clamping part; when closing the door body, the first clamping part is pushed away from the balance position by the external triggering force and the elastic recovery force released by the first elastic member as auxiliary driving force, the pulling force provided by the third elastic member drives the first clamping part until triggering the second micro switch, so that the first clamping part is locked by the second locking member to close the door body.

[0019] In some embodiments, the door locking device comprises a damping member mounted on the bracket, the damping member is used to provide damping force to slow down the rotation speed of the rotating member, so as to slow down the closing speed of the door body.

[0020] The application also provides a cooking appliance. Another aspect of the application provides a cooking appliance. The cooking appliance comprises a door body, a cavity and the door locking device of any of the above embodiments. The bracket is mounted at the opening of the cavity, and the clamping member is arranged on the door body.

[0021] The door locking device and the cooking appliance of the embodiments of the application add a blocking and limiting member rotatably mounted on the bracket in the door locking device, which can limit the rotation of the rotating member in the state that the door body is opened, avoid the rotating member being abnormally triggered, and ensure that the door body of the door locking device can be normally opened and closed. In addition, the first elastic member in the state of resisting the rotating member and storing force is added in the door locking device in the state that the door body is opened, when closing the door body, the first elastic member provides auxiliary driving force to the rotating member, which reduces the triggering force required for closing the door, and light push automatic door closing can be realized with smaller triggering force, and the user experience is better.

[0022] Additional aspects and advantages of the application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0024] Figure 1 is a perspective structural schematic view of a cooking appliance of some embodiments of the application;

[0025] Figure 2 is a partial perspective structural schematic view of a cooking appliance of some embodiments of the application;

[0026] Figure 3 is a partial structural schematic view of a cooking appliance of some embodiments of the application;

[0027] Figure 4 is a perspective view of a door lock device according to some embodiments of the present application;

[0028] Figure 5 is a perspective view of a door lock device according to some embodiments of the present application;

[0029] Figure 6 is a perspective view of a door lock device according to some embodiments of the present application;

[0030] Figure 7 is a perspective exploded view of a door lock device according to some embodiments of the present application;

[0031] Figure 8 is a state view of a door lock device according to some embodiments of the present application;

[0032] Figure 9 is another state view of a door lock device according to some embodiments of the present application;

[0033] Figure 10 is another state view of a door lock device according to some embodiments of the present application;

[0034] Figure 11 is another state view of a door lock device according to some embodiments of the present application;

[0035] Figure 12 is a perspective view of a blocking stopper in a door lock device according to some embodiments of the present application;

[0036] Figure 13 is a perspective view of a bracket in a door lock device according to some embodiments of the present application;

[0037] Figure 14 is a perspective view of a bracket in a door lock device according to some embodiments of the present application;

[0038] Figure 15 is a perspective view of a bracket in a door lock device according to some embodiments of the present application;

[0039] Figure 16 is a perspective view of a bracket in a door lock device according to some embodiments of the present application;

[0040] Figure 17 is a state view of a door lock device according to some embodiments of the present application;

[0041] Figure 18 is another state view of a door lock device according to some embodiments of the present application;

[0042] Figure 19is another state diagram of the door lock device of some embodiments of the present application.

[0043] BRIEF DESCRIPTION OF DRAWINGS

[0044] 200 - cooking appliance; 210 - cavity; 220 - door body;

[0045] 100 - door lock device; 10 - bracket, 11 - mounting shaft, 12 - damper mounting cover, 13 - damper assembly hole, 14 - rotating shaft, 15 - electromagnet assembly seat, 16 - lever assembly seat, 17 - sliding groove, 101 - first mounting seat, 102 - connecting wire, 111 - ramp; 20 - clamping piece, 21 - mounting part, 22 - first clamping part, 221 - first clamping part hook, 23 - second clamping part, 231 - second clamping part hook, 24 - positioning hole, 25 - door hook spring; 30 - rotating piece, 31 - mounting hole, 321 - first rotating hook arm, 322 - second rotating hook arm, rotating clamping groove 33; 40 - damping piece, 41 - one-way damper, 42 - straight rack; 50 - blocking limiting piece, 51 - limiting clamping groove, 52 - second mounting seat, 53 - rotating hole, 54 - first inclined surface, 55 - second inclined surface; 60 - first elastic piece; 70 - second elastic piece; 81 - first locking piece; 801 - first micro switch, 802 - second micro switch, 82 - second locking piece, 821 - electromagnet, 822 - lever; 90 - third elastic piece, 91 - first end of third elastic piece, 92 - second end of third elastic piece, 93 - torsional spring. DETAILED DESCRIPTION

[0046] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or like reference numerals used throughout refer to the same or like elements or elements having the same or similar functionality. The embodiments described below are exemplary only, and are not to be taken in a limiting sense, but are merely for the purpose of explanation of embodiments of the present application.

[0047] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0048] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] In the embodiments of the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and arrangements of the specific examples are described in the following. Of course, they are merely examples and are not intended to limit the present application. The present application can repeat the reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0051] Referring to Figure 1 and Figure 2 , the present application discloses a cooking appliance 200, which includes but is not limited to a microwave oven, a steam oven, an electric oven, etc. The cooking appliance 200 includes a cavity 210, a door body 220, and a door lock device 100. The cavity 210 is formed with an opening, and the door body 220 is installed at the opening of the cavity 210. The door body 220 is rotationally connected with the cavity 210 to open or close the opening of the cavity 210. For example, the door body 220 can be rotationally connected with the cavity 210 through a hinge. The door lock device 100 is connected with the cavity 210 and the door body 220, and is used to realize the opening and closing of the door body 220 relative to the cavity 210.

[0052] Referring to Figures 3 to 7 In some embodiments, the door lock device 100 includes a bracket 10, a clamping piece 20, a rotating piece 30, a blocking and limiting piece 50, and a first elastic piece 60.

[0053] The bracket 10 is used to be installed at the opening of the cavity 210. Specifically, the bracket 10 is a carrier of the rotating piece 30 and other components, and the bracket 10 can be installed on the cavity 210 through screws and other fasteners. In order to meet the installation position, structure and other requirements of different components, the bracket 10 is generally irregular in shape.

[0054] The clamping piece 20 is used to be fixed to the door body 220, and the door body 220 is installed at the opening of the cavity 210. The door body 220 is rotationally connected with the cavity 210 to open or close the opening of the cavity 210. Specifically, the clamping piece 20 can be installed on the door body 220 through welding, threaded connection, clamping, etc., so that the clamping piece 20 is fixed with the door body 220. The clamping piece 20 includes a mounting portion 21, and a first clamping portion 22 and a second clamping portion 23 arranged on the mounting portion 21.

[0055] The rotating piece 30 is installed on the bracket 10 and can rotate relative to the bracket 10. The rotating piece 30 is used to cooperate with the clamping piece 20 to drive the door body 220 to close during the closing process of the door body 220.

[0056] Please refer to Figures 8 to 12 As shown, the rotating member 30 can rotate between a first position and a second position, and the rotating member 30 is driven by the clamping member 20 to close the door body 220 during the rotation from the first position to the second position. The first position is the initial position of the rotating member 30 to keep balance, also known as the balance position. The second position is the terminal position of the rotating member 30 to rotate on the bracket 10 to drive the clamping member 20 to move so that the door body 220 is closed.

[0057] The rotating member 30 is provided with a mounting hole 31, and the bracket 10 is provided with a mounting shaft 11 corresponding to the mounting hole 31. The mounting hole 31 is clamped with the mounting shaft 11, so that the rotating member 30 is rotatably mounted on the bracket 10. The mounting hole 31 can be a circular hole or a non-circular hole, which is not limited here, as long as it can ensure that the rotating member 30 can rotate relative to the mounting shaft 11 through the mounting hole 31. The rotating member 30 can be a driving lever or other elements that can realize the rotating function, which is not limited here. The driving lever is a device that realizes the rotating function by using the principle of lever.

[0058] As can be understood, in the related art, the bracket 10 is formed with an inclined ramp 111 and a first locking member 81 (as Figure 18 As shown), during the closing of the door body 220, the clamping hook 231 of the second clamping portion 23 overcomes the pulling force of the spring and the friction between the clamping hook 231 and the ramp 111, and climbs from the low slope section to the high slope section of the ramp 111. After the clamping hook 231 of the second clamping portion 23 passes the high slope section of the ramp 111, under the action of the spring restoring force, the clamping hook 231 of the second clamping portion 23 hooks the high slope section and is clamped with the first locking member 81, so that the door body 220 is locked with the cavity 210. However, in actual operation, at the moment when the clamping hook 231 of the second clamping portion 23 passes the high slope section of the ramp 111, the friction between the clamping hook 231 of the second clamping portion 23 and the ramp 111, and the resistance of the spring to the clamping hook of the second clamping portion 23 disappear. At this time, due to the inertia of the user's operation, the pushing force will continue to be applied to the door body 220 or the door body 220 will continue to move due to inertia, and the pushing force will be applied to the door body 220, so that the door body 220 collides with the cavity 210 and causes a large noise.

[0059] Therefore, the door lock device 100 of the embodiment of the present application can further include a damping member 40, which is installed on the bracket 10. The damping member 40 is used to provide a damping force to slow down the rotation speed of the rotating member 30, so as to slow down the closing speed of the door body 220.

[0060] Specifically, the damping member 40 is mounted on the support 10, and the damping member 40 is used to provide a damping force to slow down the rotation speed of the rotating member 30, so as to slow down the closing speed of the door body 220. The damping member 40 can be engaged with the rotating member 30 during the rotation of the rotating member 30, and the rotation speed of the rotating member 30 is limited by the friction force generated between the damping member 40 and the rotating member 30.

[0061] The damping member 40 can be a one-way damper. When the door body 220 is closing, the one-way damper can slow down the closing speed of the door body 220. When the door body 220 is opening, the one-way damper does not provide damping and does not hinder the opening of the door body 220, so as to reduce the collision between the door body 220 and the cavity 210 when the door body 220 is closing, and reduce the noise. Conversely, when the door body 220 is opening, the damping member 40 does not slow down the opening speed of the door body 220, which is more labor-saving and improves the user experience. In this way, the present application slows down the advancing speed of the door body 220 by arranging the damping member 40 in the door lock device 100, thereby reducing the closing speed, eliminating the impact noise when closing the door, and achieving a mute effect.

[0062] Please refer to Figures 13 to 15 The support 10 can be fixedly mounted with a damper mounting cover 12, and the support 10 can be further provided with a damping member assembly hole 13 corresponding to the damper mounting cover 12. The damping member 40 can be assembled on the support 10 through the damper mounting cover 12 and the damping member assembly hole 13. For example, the damping member 40 can include a one-way damper 41 and a straight rack 42. When the door lock device 100 is assembled with the one-way damper 41, the one-way damper 41 can be first mounted on the straight rack 42, and then assembled with the support 10 through the damper mounting cover 12 and the screw in the damping member assembly hole 13.

[0063] The blocking limiting member 50 is rotatably mounted on the support 10, and the blocking limiting member 50 can limit the rotation of the rotating member 30 when the door body 220 is in an open state. That is to say, when the door body 220 is in an open state, the rotating member 30 can be kept at a first position, and at this time, the blocking limiting member 50 can limit the rotation of the rotating member 30.

[0064] Specifically, the blocking limiting member 50 can be a limiting lever or other elements that can play a limiting role, which is not limited here. The limiting lever is a device that realizes the limiting function by using the principle of a lever.

[0065] In the process of closing the door body 220, the clamping piece 20 on the door body 220 first contacts the blocking limiting piece 50. When the clamping piece 20 moves towards the inside of the cavity 210, a downward pressure is applied to the blocking limiting piece 50, so that the blocking limiting piece 50 rotates downward, and the blocking limiting piece 50 is separated from the rotating piece 30, thereby releasing the limiting effect of the blocking limiting piece 50. At this time, when the clamping piece 20 continues to move towards the inside of the cavity 210, the rotating piece 30 is no longer blocked by the blocking limiting piece 50, and can rotate smoothly along the first direction, for example, the counterclockwise direction, until the door body 220 is closed. After the limiting effect of the blocking limiting piece 50 is released, the clamping piece 20 continues to move towards the inside of the cavity 210, and the clamping piece 20 continues to apply a downward pressure to the blocking limiting piece 50 until the door body 220 is closed.

[0066] In the process of opening the door body 220, the clamping piece 20 is pulled by an external force and drives the rotating piece 30 to rotate in a second direction opposite to the first direction, for example, the clockwise direction, until the rotating piece 30 reaches the initial first position and is limited by the blocking limiting piece 50 again, thereby preventing the rotating piece 30 from being abnormally triggered. At this time, the clamping piece 20 is separated from the rotating piece 30. Then, as the clamping piece 20 continues to move towards the opening of the cavity 210 under the action of the external force, the clamping piece 20 is separated from the blocking limiting piece 50, and the blocking limiting piece 50 returns to the original position.

[0067] The first elastic piece 60 is installed on the support 10. When the door body 220 is in an open state, the first elastic piece 60 abuts against the rotating piece 30, and the first elastic piece 60 is in a force storage state. Specifically, the first elastic piece 60 can be a spring or a compression spring, which can be elastically stretched and contracted.

[0068] It can be understood that, since the first elastic piece 60 abuts against the rotating piece 30 and is in a force storage state, when the door body 220 is closed, the first elastic piece 60 can release elastic force to provide an auxiliary driving force for driving the rotating piece 30 to rotate, thereby further reducing the trigger force required for closing the door, enabling light push automatic door closing with a smaller trigger force, and improving user experience.

[0069] Thus, the door lock device 100 and the cooking appliance 200 of the embodiments of the present application add the blocking and limiting member 50 rotatably mounted on the support 10 in the door lock device 100, which can limit the rotation of the rotating member 30 in the state that the door body 220 is opened, avoid the rotating member 30 from being abnormally triggered, and ensure that the door body 220 of the door lock device 100 can be normally opened and closed. In addition, the first elastic member 60 in the state that the door body 220 is opened is added in the door lock device 100 and abuts against the rotating member 30 and is in a force storage state. When the door body 220 is closed, the first elastic member 60 provides an auxiliary driving force to the rotating member 30, reduces the trigger force required for closing the door, and can realize automatic closing of the door by a small trigger force, which provides a better user experience.

[0070] In addition, the damping member 40 can reduce the noise generated by the collision between the door body 220 and the cavity 210 during the closing of the door body 220, and improve the user experience.

[0071] Please refer to Figures 3 to 7 and Figure 16 The support 10 is provided with a first mounting seat 101, and the first mounting seat 101 is used for fixing the first elastic member 60. Thus, compared with directly fixing the first elastic member 60 on the support 10, the embodiments of the present application can install and fix the first elastic member 60 by providing the first mounting seat 101 on the support 10, so that the first elastic member 60 is firmly installed on the support 10.

[0072] In one embodiment, the first mounting seat 101 can be integrally manufactured with the support 10, and the manufacturing process is simple. In addition, the installation position of the first elastic member 60 is fixed with the position of the first mounting seat 101, the first elastic member 60 can be directly fixed and installed on the support 10 through the first mounting seat 101, and the installation process of the first elastic member 60 is convenient and fast.

[0073] In another embodiment, the first mounting seat 101 can also be detachably connected with the support 10, so that the first elastic member 60 and the first mounting seat 101 can be detached from the support 10 at any time, which is convenient for replacing the first mounting seat 101 when the first mounting seat 101 is damaged, and is also convenient for replacing the first elastic member 60 in the future.

[0074] In order to provide greater auxiliary driving force to the rotating member 30, the first mounting seat 101 can be inclinedly arranged on the support 10 towards the rotating member 30. Specifically, as shown in Figures 3 to 8 The first mounting seat 101 can be inclined towards the direction of the blocking and limiting member 50 towards the rotating member 30, thereby providing auxiliary driving force to the rotating member 30, which can realize automatic closing of the door by a small trigger force, and provides a better user experience.

[0075] When the door body 220 is closed, a small trigger force, for example, 3-4 N, or a smaller trigger force, is applied to the door body 220, so that the push-to-close automatic door closing effect of the door body 220 can be achieved.

[0076] In some embodiments of the present application, the first elastic member 60 can be a compression spring. It can be understood that the compression spring generally has a small deformation and a small elastic modulus, and its elastic restoring force is relatively stable. They are elastically deformed by the load to resist external pressure. In addition, the structure of the compression spring is relatively simple, which is usually composed of a coil with a small diameter and does not need to be subjected to complex bending treatment. Therefore, when the first elastic member 60 is a compression spring and the first mounting seat 101 is a compression spring mounting seat, the elastic restoring force of the second elastic member 70 is more stable, and the structure is simpler.

[0077] Please refer to Figures 3 to 8 In some embodiments of the present application, the rotating member 30 of the present application includes a first rotating hook arm 321 and a second rotating hook arm 322, and the first rotating hook arm 321 abuts against the first elastic member 60. The blocking and limiting member 50 includes a limiting clamping groove 51, and the limiting clamping groove 51 clamps the second rotating hook arm 322, so as to limit the rotation of the rotating member 30 when the door body 220 is in an open state.

[0078] Specifically, the shape of the limiting clamping groove 51 can match the shape of the second rotating hook arm 32, and the second rotating hook arm 32 can be clamped, as shown in Figures 3 to 8 The shape of the limiting clamping groove 51 can be "U" shaped. In other embodiments of the present application, the limiting clamping groove 51 can also have other shapes, which are not limited herein.

[0079] That is, the blocking and limiting member 50 of the present application is provided with the limiting clamping groove 51, which can clamp the second rotating hook arm 32 of the rotating member 30, so as to limit the rotation of the rotating member 30 when the door body 220 is in an open state, avoid the rotating member 30 being abnormally triggered, change the initial position of the rotating member 30, i.e., not located at the first position described above, make the clamping member 20 unable to normally push the rotating member 30 to rotate for normal door closing and opening, and further ensure that the door body 220 of the door lock device 100 can be normally opened and closed.

[0080] The first rotating hook arm 321 abuts against the first elastic member 60, and further, the direction of the elastic restoring force of the first elastic member 60 is perpendicular to the first rotating hook arm 321. Therefore, the elastic restoring force released by the first elastic member 60 as an auxiliary driving force can more easily push the first rotating hook arm 321 to rotate in a first direction, for example, counterclockwise, so that the push-to-close automatic door closing effect can be achieved with a smaller trigger force, and the user experience is better.

[0081] The door lock device 100 further comprises a second elastic member 70, and the blocking limiting member 50 further comprises a second mounting seat 52 which is located on the blocking limiting member 50 and opposite to the limiting clamping groove 51. The first end 71 of the second elastic member 70 is fixedly installed on the second mounting seat 52, and the second end 72 of the second elastic member 70 is fixedly installed on the support 10.

[0082] Specifically, the second elastic member 70 can be a compression spring or a spring. Correspondingly, the second mounting seat 52 can be a compression spring mounting seat or a spring mounting seat. The second mounting seat 52 is integrally arranged on the blocking limiting member 50, so that the installation position of the second elastic member 70 is fixed with the position of the second mounting seat 52, and the installation process of the second elastic member 70 is convenient and fast.

[0083] In other embodiments of the present application, the second mounting seat 52 can also be detachably connected with the support 10, so that the second elastic member 70 and the first mounting seat 101 can be detached from the support 10 at any time. When the first mounting seat 101 is damaged, the first mounting seat 101 can be conveniently replaced, and the second elastic member 70 can also be conveniently replaced subsequently.

[0084] It can be understood that the compression spring generally has small deformation and elastic modulus, and the elastic recovery force is relatively stable. They are elastically deformed by the load to resist external pressure. In addition, the structure of the compression spring is relatively simple, which is usually composed of a coil with small diameter and does not need to be subjected to complex bending treatment. Therefore, when the second elastic member 70 is a compression spring and the second mounting seat 52 is a compression spring mounting seat, the elastic recovery force of the second elastic member 70 is more stable, and the structure is simpler. In the embodiments of the present application, the second elastic member 70 is taken as a compression spring, and the second mounting seat 52 is taken as a compression spring mounting seat as an example for description.

[0085] Please refer to Figure 6 and Figure 7 , the blocking limiting member 50 is further provided with a rotating hole 53, and the support 10 is provided with a rotating shaft 14 corresponding to the rotating hole 53. The blocking limiting member 50 is rotatably installed on the rotating shaft 14 through the rotating hole 53.

[0086] That is to say, as shown in Figure 6 , in the embodiments of the present application, the rotating shaft 14 can be integrally arranged on the support 10, and the rotating shaft 14 is fixed and immovable. The blocking limiting member 50 can be connected with the rotating shaft 14 through the rotating hole 53. The blocking limiting member 50 rotates around the rotating shaft 14 with the rotating shaft 14 as the center.

[0087] In other embodiments of the present application, the rotating shaft 14 can also be rotatably arranged on the support 10 around the center of its own shaft. The blocking limiting member 50 can be fixedly installed on the rotating shaft 14 through the rotating hole 53. The blocking limiting member 50 rotates together with the rotating shaft 14 through the rotating hole 53.

[0088] In addition, in other embodiments of the present application, when the rotating hole 53 is fixedly installed as a whole with the rotating shaft 14, the rotating shaft 14 can also be arranged as a part of the blocking and limiting member 50, and the rotating shaft 14 serves as a rotating connecting part of the blocking and limiting member 50 relative to the bracket 10. When the blocking and limiting member 50 is installed, only one end of the rotating shaft 14 needs to be inserted into the corresponding installation and fixing hole of the bracket 10.

[0089] The rotating hole 53 can be circular or square, which is not limited herein. Correspondingly, the rotating shaft 14 can be a cylindrical body or a square column.

[0090] Please refer to Figures 3 to 7 , the clamping member 20 includes an installation part 21 and a first clamping part 22 arranged on the installation part 21, and the first clamping part 22 is formed with a clamping hook 221. The rotating member 30 is provided with a rotating clamping groove 33, and the rotating member 30 can be driven by the first clamping part 22 to close the door body 220 when the clamping hook 221 is clamped with the rotating clamping groove 33. The first rotating hook arm 321 and the second rotating hook arm 322 are located on both sides of the rotating clamping groove 33.

[0091] Please refer to Figures 8 to 12 , the blocking and limiting member 50 is further provided with a first inclined surface 54. When the door body 220 is closed, the first clamping part 22 pushes the first inclined surface 54 to make the blocking and limiting member 50 rotate around the rotating shaft 14 as the center, drives the rotating member 30 to rotate along the direction of the pushing force, and the first elastic member 60 releases the elastic restoring force as an auxiliary driving force to gradually separate from the first rotating hook arm 321, so as to realize the bidirectional action of pushing the first rotating hook arm 321 and the second rotating hook arm 322 to rotate. During the closing process, the bottom of the first clamping part 22 always presses the top of the blocking and limiting member 50.

[0092] When the door body 220 is opened, the bottom of the first clamping part 22 always presses the top of the blocking and limiting member 50, until the clamping hook 221 of the first clamping part 22 is separated from the rotating clamping groove 33 to make the limiting clamping groove 51 limit the second rotating hook arm 322, then the first clamping part 22 is separated from the blocking and limiting member 50, and the first rotating hook arm 321 abuts against the first elastic member 60.

[0093] Specifically, the inclination direction of the first inclined surface 54 can be the direction as shown in Figure 3 , that is, the first inclined surface 54 inclines towards the bottom of the blocking and limiting member 50.

[0094] Further, the first inclined surface 54 can form a smooth curved slope section on the blocking and limiting member 50. That is, the first inclined surface 54 can serve as the front curved slope section of the blocking rod gap formed by the limiting clamping groove 51 of the blocking and limiting member 50.

[0095] Therefore, the blocking and limiting piece 50 is provided with the first inclined surface 54, and the front curved slope section is formed, so that when the door body 220 is closed, the blocking and limiting piece 50 can be more smoothly pressed downward by the clamping hook 221 of the first clamping part 22 after the blocking and limiting piece 50 is contacted with the first clamping part 22, and the blocking and limiting piece 50 is rotated downward around the rotating shaft 14.

[0096] Please continue to refer to Figure 3 The blocking and limiting piece 50 further comprises a second inclined surface 55 located on the opposite side of the first inclined surface 54 of the limiting clamping groove 51. When the blocking and limiting piece 50 rotates, the second inclined surface 55 is spaced apart from the first clamping part 22 by a preset distance. The preset distance can be, for example, 1 cm, 1.2 cm or 1.5 cm, which is not limited herein. That is to say, when the door body 220 is closed or opened, the second inclined surface 55 does not interfere with the movement of the first clamping part 22 during the rotation of the blocking and limiting piece 50.

[0097] The inclination direction of the second inclined surface 55 can be, for example, the direction shown in Figure 3 , that is, the second inclined surface 55 is inclined toward the bottom of the blocking and limiting piece 50 away from the first clamping part 22. Further, the second inclined surface 55 can form a smooth curved slope section on the blocking and limiting piece 50.

[0098] That is, the second inclined surface 55 can serve as the rear curved slope section of the blocking rod tiger mouth formed by the limiting clamping groove 51 of the blocking and limiting piece 50. When the blocking and limiting piece 50 rotates, the second inclined surface 55 is spaced apart from the first clamping part 22 by a preset distance, so that the rear curved slope section of the blocking rod tiger mouth formed by the limiting clamping groove 51 of the blocking and limiting piece 50 is away from the first rotating hook arm 321 and the second rotating hook arm 322 of the rotating member 30 during the subsequent rotation of the first rotating hook arm 321 and the second rotating hook arm 322, so as to ensure that the second inclined surface 55 of the blocking and limiting piece 50 does not interfere with the subsequent rotation of the first rotating hook arm 321 and the second rotating hook arm 322.

[0099] As shown in Figures 3 to 7 , the structure of the blocking and limiting piece 50 in the embodiment of the present application can be a hollow structure, so as to reduce the overall weight of the door lock device 100. In other embodiments of the present application, the blocking and limiting piece 50 of the present application can also be a solid structure inside, and the manufacturing process of the blocking and limiting piece 50 is simpler.

[0100] Please refer to Figures 17 to 19The clamping piece 20 further comprises a second clamping portion 23 arranged on the mounting portion 21. The second clamping portion 23 is arranged in a spaced-apart manner with the first clamping portion 22. The door lock device 100 further comprises a first locking piece 81 and a first micro switch 801 arranged on the bracket 10. The first micro switch 801 is configured to control the first locking piece 81 to lock the second clamping portion 23. When the second clamping portion 23 is in contact with the first micro switch 801, the first micro switch 801 is triggered, so that the second clamping portion 23 is locked by the first locking piece 81.

[0101] That is to say, in the embodiments of the present application, the mounting portion 21, the first clamping portion 22 and the second clamping portion 23 are integrated structures, for example, the mounting portion 21, the first clamping portion 22 and the second clamping portion 23 can be formed by pressure casting or the like. Of course, the mounting portion 21, the first clamping portion 22 and the second clamping portion 23 can also be separate structures, and the first clamping portion 22 and the second clamping portion 23 can be fixed on the mounting portion 21 by screws or the like.

[0102] Specifically, the first locking piece 81 can be a locking device controlled by the first micro switch 801. The first locking piece 81 is detachably connected with the bracket 10, facilitating maintenance and replacement; or the first locking piece 81 is fixed relative to the bracket 10 by welding, facilitating processing and production; or the first locking piece 81 is an integrated structure with the bracket 10, which has good mechanical properties, higher connection strength, is conducive to reducing the number of parts, and thus reducing the installation process and improving the installation efficiency.

[0103] Please refer to Figures 3 to 12 In an embodiment, the door lock device 100 can further comprise a third elastic piece 90 connected with the bracket 10 and the rotating piece 30. The third elastic piece 90 can balance the forces of the first rotating hook arm 321 and the second rotating hook arm 322 after the door body 220 is opened, so that the first rotating hook arm 321 and the second rotating hook arm 322 are in a balanced position. The third elastic piece 90 can exert an elastic force on the rotating piece 30 in the case that the rotating piece 30 cooperates with the clamping piece 20, so that the rotating piece 30 rotates to drive the door body 220 to close by the clamping piece 20.

[0104] Specifically, the first end 91 of the third elastic member 90 is connected to the support 10, and the second end 92 of the third elastic member 90 is connected to the rotating member 30. When the second end 92 of the third elastic member 90 is located on the first side of the line 102 connecting the rotating center of the rotating member 30 and the first end 91 of the third elastic member 90, the third elastic member 90 applies a pushing force to the rotating member 30 in the direction of the first side. When the second end 92 of the third elastic member 90 is located on the second side of the line 102 connecting the rotating center of the rotating member 30 and the first end 91 of the third elastic member 90, the third elastic member 90 applies a pushing force to the rotating member 30 in the direction of the second side, and the first side and the second side are located on the opposite sides of the line 102, respectively.

[0105] The third elastic member 90 can be a torsion spring 93. The torsion spring 93 stores energy during the opening of the door body 220 and makes the first rotating hook arm 321 and the second rotating hook arm 322 of the rotating member 30 have a tendency to rotate in the second direction after the door body 220 is opened, so as to keep the rotating member 30 in the first position in the balanced state, i.e., the balanced position. The second direction can be, for example, the clockwise direction.

[0106] The torsion spring 93 can release the stored energy and make the rotating member 30 rotate in the first direction during the closing of the door body 220, so as to drive the door body 220 to close through the clamping member 20, and the first direction can be, for example, the counterclockwise direction.

[0107] It should be noted that the first direction of the embodiments of the present application is opposite to the second direction, and the first direction is the direction from the first position to the second position.

[0108] The embodiments of the present application drive the rotating member 30 to rotate through the torsion spring 93, and the door body 220 can be closed without applying an external force all the time, which can realize automatic closing of the door body 220 after a slight push, has a simple structure, is easy to implement, and the cost of the torsion spring 93 is relatively low, so as to reduce the cost.

[0109] In detail, during the process of driving the rotating member 30 to rotate through the torsion spring 93 to close the door body 220, the first clamping part 22 first contacts the blocking limiting part 50, and then contacts the rotating member 30 on the support 10. The first clamping part 22 drives the first rotating hook arm 321 and the second rotating hook arm 322 of the rotating member 30 to rotate through the horizontal force point of the torsion spring under the action of the inertial force, and the first clamping part 22 is engaged with the rotating member 30. The first clamping part 22 rotates under the action of the torsion force of the torsion spring, pulls the door body 220 to move forward, and makes the second clamping part 23 move upward along the slope 111 of the support 10, and gradually slides over the high point of the slope to trigger the first micro switch 801, and the second clamping part 23 is locked through the first locking part 81 (as shown in FIG. 8). Figure 19

[0110] ​In some embodiments of the present application, the second clamping part 23 can be assembled on the door body 220 through the positioning hole 24 inside the door body 220 and the door hook spring 25. When the second clamping part 23 moves upward along the ramp 111 of the bracket 10, the door hook spring 25 will be deformed. Then, the clamping hook 231 of the second clamping part 23 can quickly touch the contact of the first micro switch 801 under the spring restoring force of the door hook spring 25 inside the door body 220, and the first micro switch 801 is turned on to lock the second clamping part 23 through the first locking part 81. At this time, the rotating part 30 pulls the first clamping part 22 to move forward slowly and synchronously under the torsional force of the torsion spring, so that the door body 220 moves forward synchronously to achieve door closing.

[0111] The door hook spring 25 provides the pulling force of the clamping hook 231 of the second clamping part 23 to trigger the first micro switch 801.

[0112] In other embodiments of the present application, the third elastic part 90 can also be a tension spring, an electromagnetic driving component, etc., which is not limited here.

[0113] Please refer to Figures 3 to 19 , the door lock device 100 further comprises a second micro switch 802 and a second locking part 82 arranged on the bracket 10, and the second micro switch 802 is used to control the second locking part 82 to lock the first clamping part 22.

[0114] When closing the door body 220, the first clamping part 22 is bidirectionally pushed away from the balance position by the external trigger force and the elastic restoring force released by the first elastic part 60 as auxiliary driving force, and the pulling force provided by the third elastic part 90 drives the first clamping part 22 until triggering the second micro switch 802, so that the first clamping part 22 is locked by the second locking part 82 to close the door body 220.

[0115] Specifically, please refer to Figures 3 to 19 , in one embodiment, the door lock device 100 further comprises a second micro switch 802 and a second locking part 82 arranged on the bracket 10, and the second micro switch 802 is used to control the second locking part 82 to lock the first clamping part 22. When closing the door body 220, the first clamping part 22 is bidirectionally pushed away from the balance position by the external trigger force and the elastic restoring force released by the first elastic part 60 as auxiliary driving force, and the pulling force provided by the torsion spring 93 drives the first clamping part 22 until triggering the second micro switch 802, so that the first clamping part 22 is locked by the second locking part 82 to close the door body 220.

[0116] Specifically, the second locking member 82 can be an electromagnet 821 and a push rod 822. The bracket 10 is provided with an electromagnet assembly seat 15 corresponding to the electromagnet 821, and is further provided with a push rod assembly seat 16 corresponding to the push rod 822, and is further provided with a sliding groove 17 corresponding to the push rod 822.

[0117] After the door body 220 is completely closed, the first clamping part 22 and the second clamping part 23 stop moving, and the arc working surface of the rotating part 30 abuts against the second micro switch 802 and acts, thereby conducting the power circuit composed of the second micro switch 802, the electromagnet 821 and the push rod 822, and the electromagnet 821 triggers the working top to push the push rod 822 to move to the first end 171 of the sliding groove 17 on the bracket 10, thereby locking the first clamping part 22 and locking the door body 220.

[0118] In the process of driving the rotating part 30 to rotate by the third elastic member 90, i.e., the torsion spring, to open the door body 220, when the cooking appliance 200 is in a powered state, an electric signal can be output to the electromagnet 821 by touching the control panel keys on the cooking appliance 200. The electromagnet 821 drives the push rod 822 to move to the second end 172 of the sliding groove 17, so as to unlock the entire locking of the first clamping part 22. After unlocking, the clamping part 20 fixed on the door body 220 starts to slide out of the cavity 210 under the action of an external force, the second clamping part 23 is first disengaged from the first micro switch 801, and then the clamping hook 221 of the second clamping part 22 is disengaged from the second rotating hook arm 322 of the rotating part 30, in the process, the torsion spring stores elastic potential energy.

[0119] That is, in the process of opening the door body 220, the second clamping part 23 moves away from the trigger point of the first micro switch 801 and moves to the highest point of the bracket 10, and then moves away from the door lock device 100 from the ramp 111. The first clamping part 22 pulls the rotating part 30 to rotate in the second direction, and at the same time, the contact of the second micro switch 802 is released to press the push rod 822, so as to realize the action switching of the push rod 822 from the first end to the second end. Finally, the clamping hook 221 of the first clamping part 22 is completely disengaged from the bracket 10, and at this time, the door body 220 is completely opened.

[0120] Please refer to Figures 8 to 11 and Figures 17 to 19When a pushing force of about 3-4 N is applied to the door body 220, the door body 220 moves towards the bracket 10 without the user applying a pushing force to the door body. The first clamping portion 22 first contacts the front curved section 54 of the blocking limiting member 50 and applies a downward pressure to the blocking limiting member 50, so that the blocking limiting member 50 rotates around the rotating shaft 14, thereby triggering the first elastic member 60 to release the auxiliary driving force. Subsequently, the rotating member 30 starts to automatically rotate by the auxiliary driving force of the first elastic member 60 and the pulling force provided by the pull spring mechanism 94, and the second clamping portion 23 moves upwards along the slope 111 of the bracket 10 until the first micro switch 801 is triggered, and the second clamping portion 23 is locked by the first locking member 81.

[0121] After the rotating member 30 rotates through a predetermined angle in the second direction, the rotating member 30 is disengaged from the limiting clamping groove 51 of the blocking limiting member 50, and the damping member 40 cooperates with the rotating member 30. The second end 92 of the third elastic member 90 is located on the side of the line 102 away from the door body 220, the third elastic member 90 releases the stored force and drives the rotating member 30 to rotate in the second direction, so that the rotating member 30 pulls the first clamping portion 22 to drive the door body 220 to continue closing, and the damping member 40 can slow down the closing speed of the door body 220.

[0122] It can be understood that the door opening process of the cooking appliance 200 is opposite to the door closing process, and specifically as follows:

[0123] Please refer to Figures 8 to 11 and Figures 17 to 19 After the cooking appliance 200 completes the work, the door body 220 is pulled, the first clamping portion 22 drives the rotating member 30 to rotate, and the second clamping portion 23 drives the stop member to rotate. In this process, the third elastic member 90 stores energy. After the first clamping portion 22 is disengaged from the rotating member 30 and the first clamping portion 22 is completely disengaged from the blocking limiting member 50, and the second clamping portion 23 is disengaged from the first locking member 81, the door body 220 is completely opened. The second end 92 is located on the side of the line 102 close to the door body 220, so that the third elastic member 90 applies a force to the rotating member 30 in the first direction, and the force makes the rotating member 30 remain in the first position.

[0124] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0125] Although the embodiments of the present application have been shown and described above, it is to be understood that the above-described embodiments are merely exemplary, and are not to be construed as limiting the present application, and that modifications, substitutions, replacements and variations of the above-described embodiments can be made by those skilled in the art within the scope of the present application.

Claims

1. A door locking device, characterized by comprising: The door locking device comprises: a bracket for being mounted at an opening of a cavity; a clamping member for being fixed to a door body mounted at the opening of the cavity, the door body being rotatably connected with the cavity to open or close the opening of the cavity; a rotating member mounted on the bracket and rotatable relative to the bracket, the rotating member being used to cooperate with the clamping member to drive the door body to close through the clamping member during closing of the door body; a blocking and limiting member rotatably mounted on the bracket, the blocking and limiting member being capable of limiting rotation of the rotating member when the door body is in an open state; and a first elastic member mounted on the bracket, the first elastic member being in abutment with the rotating member when the door body is in the open state, and the first elastic member being in a force storage state. The rotating member comprises a first rotating hook arm and a second rotating hook arm, the first rotating hook arm being in abutment with the first elastic member; the blocking and limiting member comprises a limiting clamping groove, the limiting clamping groove being engaged with the second rotating hook arm to limit rotation of the rotating member when the door body is in the open state. The clamping member comprises a mounting portion and a first clamping portion provided on the mounting portion, the first clamping portion being formed with a clamping hook. The rotating member is provided with a rotating clamping groove, the rotating member being capable of driving the door body to close through the first clamping portion when the clamping hook is engaged with the rotating clamping groove; the first rotating hook arm and the second rotating hook arm are located on two sides of the rotating clamping groove. The blocking and limiting member is further provided with a first inclined surface, the first clamping portion pushing the first inclined surface under the action of a pushing force when the door body is closed, so that the blocking and limiting member rotates about a rotating shaft on the bracket as a rotation center. When the door body is closed, the first clamping portion pushes the first inclined surface under the action of a pushing force, so that the blocking and limiting member rotates about the rotating shaft as a rotation center, the rotating member is driven to rotate in the direction of the pushing force, and the first elastic member releases an elastic restoring force as an auxiliary driving force to gradually separate from the first rotating hook arm, so that the first rotating hook arm and the second rotating hook arm are driven to rotate by the bidirectional action force, the bottom of the first clamping portion always presses the top of the blocking and limiting member during the closing process of the door body. When the door body is opened, the bottom of the first clamping portion always presses the top of the blocking and limiting member until the clamping hook of the first clamping portion is separated from the rotating clamping groove, the limiting clamping groove limits the second rotating hook arm, the first clamping portion is separated from the blocking and limiting member, and the first rotating hook arm is in abutment with the first elastic member.

2. The door latch arrangement of claim 1, wherein The bracket is provided with a first mounting seat for fixing the first elastic member.

3. The door latch arrangement of claim 2, wherein The first mounting seat is integrally provided with the bracket, or the first mounting seat is detachably connected with the bracket.

4. The door latch arrangement of claim 3, wherein The first mounting seat is obliquely arranged on the bracket towards the rotating member.

5. The door latch apparatus according to claim 1, wherein The first elastic member is a compression spring.

6. The door latch arrangement of claim 1, wherein The door lock device further comprises a second elastic member, and the blocking and limiting member further comprises a second mounting seat located on the opposite side of the limiting and clamping groove from the first inclined surface, a first end of the second elastic member is fixedly installed on the second mounting seat, and a second end of the second elastic member is fixedly installed on the support.

7. The door latch arrangement of claim 6, wherein The blocking and limiting member further comprises a second inclined surface located on the opposite side of the limiting and clamping groove from the first inclined surface, and the second inclined surface is spaced apart from the first clamping portion by a preset distance when the blocking and limiting member rotates.

8. The door latch arrangement of claim 7, wherein The clamping member further comprises a second clamping portion arranged on the mounting portion, and the second clamping portion is arranged in a spaced-apart manner with the first clamping portion. The door lock device further comprises a first locking member and a first micro switch arranged on the support, and the first micro switch is used to control the first locking member to lock the second clamping portion. When the second clamping portion contacts the first micro switch, the first micro switch is triggered, so that the second clamping portion is locked by the first locking member.

9. The door latch arrangement of claim 8, wherein The door lock device further comprises a third elastic member connecting the support and the rotating member, the third elastic member can balance the forces of the first rotating hook arm and the second rotating hook arm after the door body is opened, so that the first rotating hook arm and the second rotating hook arm are in a balanced position, and the third elastic member can exert an elastic force on the rotating member to make the rotating member rotate, so as to drive the door body to be closed through the clamping member.

10. The door latch arrangement of claim 9, wherein The door lock device further comprises a second micro switch and a second locking member arranged on the support, and the second micro switch is used to control the second locking member to lock the first clamping portion. When the door body is closed, the first clamping portion is bidirectionally pushed away from the balanced position by an external triggering force and an elastic restoring force released by the first elastic member as auxiliary driving force, and the first clamping portion is driven by a pulling force provided by the third elastic member until the second micro switch is triggered, so that the first clamping portion is locked by the second locking member to tightly close the door body.

11. The door latch arrangement of claim 1, wherein The door lock device comprises a damping member installed on the support, and the damping member is used to provide a damping force to slow down the rotating speed of the rotating member, so as to slow down the closing speed of the door body.

12. A cooking appliance characterized in that, It comprises: a cavity; a door body rotationally connected with the cavity; and the door lock device of any one of claims 1-11, the support is installed at an opening of the cavity, and the clamping member is arranged on the door body. ​

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