CN113509055A

CN113509055A - Door lock device and cooking utensil

Info

Publication number: CN113509055A
Application number: CN202110997880.4A
Authority: CN
Inventors: 位帅帅; 吴延岐
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2021-10-19
Anticipated expiration: 2041-08-27
Also published as: CN113509055B

Abstract

The application provides a door lock device and a cooking appliance, and relates to the technical field of household appliances, wherein the door lock device comprises a first door hook, a second door hook and a first mounting part, wherein the first door hook comprises a first hook-shaped part and the first mounting part is used for being connected with a door body; the bracket is used for being connected with the box body; the connecting piece is rotatably connected to the bracket and used for hooking the first hook-shaped part; the first driving piece is connected between the bracket and the connecting piece and used for driving the connecting piece to rotate along a first rotating direction relative to the bracket, so that the first hook-shaped part is pulled to move along the first direction to close the door body; the second driving piece is connected between the bracket and the connecting piece and used for providing torque which is the same as or opposite to the first rotating direction for the connecting piece; and the buffer piece is connected between the brackets and used for slowing down the moving speed of the first hook-shaped part along the first direction. Through using the door lock device that this application provided, alleviateed the impact collision between the door body and the box, reduced the noise when closing the door.

Description

Door lock device and cooking utensil

Technical Field

The application relates to the technical field of household appliances, in particular to a door lock device and a cooking appliance.

Background

In the related art, a cooking appliance such as a microwave oven includes a door body and a cabinet; the box is used for holding food, and one side of the door body articulates in one side of box, and the opposite side of the door body is provided with the door hook, and the opposite side of box is provided with the catching groove correspondingly, and when promoting the door body, the door hook colludes in the catching groove under the effect of thrust to close the door body.

However, in the related art, the noise is large when the door body is closed, and the user experience is poor.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. Therefore, an object of the present application is to provide a door lock device and a cooking appliance to reduce noise when a door is closed.

Embodiments of a first aspect of the present application provide a door lock device, comprising: the first door hook comprises a first hook-shaped part and a first mounting part used for being connected with the door body; the bracket is used for being connected with the box body; the connecting piece is rotatably connected to the bracket and used for hooking the first hook-shaped part; the first driving piece is connected between the bracket and the connecting piece and used for driving the connecting piece to rotate along a first rotating direction relative to the bracket, so that the first hook-shaped part is pulled to move along the first direction to close the door body; a second driving member connected between the bracket and the link member, the second driving member being movable from a first side to a second side of the rotational axis of the link member when the link member is rotated in a first rotational direction, the second driving member being for providing a torque to the link member opposite to the first rotational direction when the second driving member is positioned at the first side; when the second driving piece is positioned on the second side, the second driving piece is used for providing the torque which is the same as the first rotating direction to the connecting piece; and the buffer piece is connected between the brackets and used for slowing down the moving speed of the first hook-shaped part along the first direction.

The door lock device according to the above embodiment of the present application, wherein the connecting member includes a first arm for hooking the first hook and a second arm connected to the first arm; the second support arm is positioned on one side of the first support arm, which is far away from the first mounting part, and a rotating part which can be rotatably connected to the bracket is arranged at the joint of the first support arm and the second support arm; the first driving piece is connected with the second support arm; the second driving piece is connected with the first supporting arm; the buffer is connected with the second support arm.

When the first hook-shaped part is positioned on the outer side of the first support arm, which is far away from the second support arm, a height difference along the first direction is formed between the tail end of the first support arm, which is far away from the rotating part, and the tail end of the second support arm, which is far away from the rotating part, and the height difference is used for allowing the first hook-shaped part to move from the outer side of the first support arm to the position between the first support arm and the second support arm along the first direction and pushing the second support arm to rotate along the first rotating direction so that the first support arm is hooked with the first hook-shaped part.

The door-lock apparatus according to the above-described embodiment of the present application, wherein the bracket has a front surface and a rear surface opposite to the front surface; the connecting piece, the first driving piece and the buffer piece are located on the front face of the support, and the second driving piece is located on the back face of the connecting piece.

According to the door lock device of the above-mentioned embodiment of this application, wherein, be provided with first sliding hole on the support, the end of first support arm is provided with the first stand that wears to establish first sliding hole, and the back of support is provided with the second stand, and the both ends of second driving piece are connected with first stand and second stand respectively.

According to the door lock device of the above embodiment of the present application, when the first hook is located on the outer side of the first arm away from the second arm, the first pillar abuts against the hole wall of the first sliding hole.

According to the door lock device of the above embodiment of the present application, the first sliding hole includes a first circular arc hole, and an extension length of the first circular arc hole is greater than or equal to a moving path of the first pillar.

The door lock device according to the above embodiment of the present application further includes: a third driving member connected between the link and the bracket, the third driving member being movable from a third side to a fourth side of the rotational axis of the link when the link is rotated in the first rotational direction; the third driving member is used for providing torque opposite to the first rotating direction to the connecting member when the third driving member is positioned on the third side; when the third driver is located on the fourth side, the third driver is configured to provide the same torque to the link as in the first rotational direction.

According to the door lock device of the embodiment, a cover body is arranged on the side, away from the support, of the connecting piece, and a third upright post is arranged on the cover body; a fourth upright post is arranged on the connecting piece, a second sliding hole is arranged on the cover body, and the fourth upright post penetrates through the second sliding hole; the third driving piece is located one side of the cover body deviating from the connecting piece, and the third driving piece is connected between the third stand column and the fourth stand column.

According to the door lock device of the above embodiment of the present application, the third pillar is located on a side of the connecting member away from the first hook portion, and the fourth pillar is located between the rotating portion and a distal end of the second arm away from the rotating portion.

According to the door lock device of the above embodiment of the present application, the second sliding hole includes a second circular hole, and an extension length of the second circular hole is greater than or equal to a moving path of the fourth pillar.

According to the door lock device of the embodiment, the bracket is further provided with a buffer cover, and a cavity is enclosed between the buffer cover and the bracket; the buffer piece comprises a linear damper, and the linear damper is provided with a damper body and an output end which can stretch relative to the damper body along the linear direction; the damper body is rotationally arranged in the cavity, the output end penetrates through the cavity, and the output end is connected with the second support arm.

An embodiment of a second aspect of the present application provides a cooking appliance, including a door body, a box body and the door lock device of the above embodiment; the first installation part of the first door hook of the door lock device is connected to the door body, and the support of the door lock device is connected to the box body.

According to the door lock device and the cooking utensil provided by the embodiment of the application, the buffer part and the plurality of driving parts are arranged on the bracket; the first driving piece is connected between the bracket and the connecting piece so as to drive the connecting piece to rotate along a first rotating direction relative to the bracket, and therefore the first hook-shaped part is pulled to move along the first direction to close the door body; the second driving piece is connected between the bracket and the connecting piece and used for providing torque opposite to the first rotating direction for the connecting piece when the second driving piece is positioned on the first side; when the second driving piece is positioned on the second side, the second driving piece is used for providing the torque which is the same as the first rotating direction to the connecting piece; the buffer piece can slow down the moving speed of the first hook-shaped part along the first direction, so that impact collision between the door body and the box body at the time of closing the door is relieved, and noise generated when the door is closed is reduced.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

FIG. 1 illustrates a front view of a door latch mechanism according to one embodiment of the present application;

FIG. 2 illustrates a back view of a door latch mechanism according to an embodiment of the present application;

FIG. 3 is a perspective view of FIG. 2;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 shows a front view of a door latch mechanism according to another embodiment of the present application;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is an exploded view of FIG. 6;

FIG. 8A is a view showing a state in which the first hook is moved into contact with the second arm of the link during the closing of the door latch apparatus of FIG. 2;

FIG. 8B is the schematic view of FIG. 8A with portions of the cover hidden;

FIG. 8C is a back view of FIG. 8A;

fig. 9A is a view illustrating a state in which the first arm pushes the first hook to move relative to the body during the door closing process of the door-lock apparatus of fig. 2;

FIG. 9B is the schematic view of FIG. 9A with portions of the cover hidden;

FIG. 9C is a rear view of FIG. 9A;

FIG. 10A is a view showing a state in which the first hook pushes the first arm to rotate the link member with respect to the bracket during the opening of the door latch apparatus of FIG. 2;

FIG. 10B is the schematic view of FIG. 10A with portions of the cover hidden;

FIG. 10C is a back view of FIG. 10A;

FIG. 11A is a view showing the door latch apparatus of FIG. 2 during opening of the door, with the connecting member rotated relative to the bracket until the second arm contacts the first hook;

FIG. 11B is the schematic view of FIG. 11A with portions of the cover hidden;

fig. 11C is a back view of fig. 11A.

Description of reference numerals:

100: a first door hook; 110: a first mounting portion;

120: a first hook portion; 200: a support;

210: the front side of the bracket; 220: the back of the bracket;

221: a second upright post; 230: a first slide hole;

300: a connecting member; 301: a fourth column;

302: a rotating part; 310: a first support arm;

311: a first upright post; 320: a second support arm;

400: a first driving member; 500: a second driving member;

600: a buffer member; 610: a linear damper;

612: an output end; 620: a buffer cover;

700: a third driving member; 800: a cover body;

810: a third column; 820: a second slide hole;

900: a second door hook; 910: a second mounting portion;

920: a second hook portion.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

As described above, in the related art, a cooking appliance such as a microwave oven includes a door body and a cabinet; the box is used for holding food, and one side of the door body articulates in one side of box, and the opposite side of the door body is provided with the door hook, and the opposite side of box is provided with the catching groove correspondingly, and when promoting the door body, the door hook colludes in the catching groove under the effect of thrust to close the door body.

However, in the related art, in order to enable the door hook to be smoothly hooked in the hook groove, a user needs to apply a certain thrust when closing the door body, and the door body can strike the box body at a certain speed when moving under the thrust, so that noise between the door body and the box body is large when the door is closed, and user experience is poor.

In order to solve at least one of the above problems, embodiments of the present application provide a door lock device and a cooking appliance, a first door hook in the door lock device is disposed on a door body, a support in the door lock device is disposed on a box body, and a connecting member, a first driving member, a second driving member and a buffer member are connected to the support. And in the process that the door body is closed, the buffer piece can slow down the moving speed of the first door hook relative to the support, so that the noise generated when the door is closed is reduced.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiment of the application provides a door lock device, and this door lock device can be applied to the device that has the door body and box, especially can be applied to in cooking utensils such as microwave oven, oven. Using microwave oven as an example, microwave oven can have a body and box, is used for holding food in the box, and the body can be through perpendicular hinged joint on the box, and door lock device can use the one side that door body and box deviate from the hinge position.

FIG. 1 illustrates a front view of a door latch mechanism in one embodiment of the present application; FIG. 2 illustrates a back view of a door latch mechanism in an embodiment of the present application; FIG. 3 is a perspective view of FIG. 2; fig. 4 is an exploded view of fig. 3. The direction indicated by the straight arrow in fig. 1 is the first direction, and the direction indicated by the curved arrow is the first rotational direction. It will be appreciated that the first direction and the first direction of rotation are both vector directions. By way of example of a first direction, a vector direction is understood to mean a direction with directivity, for example a direction from left to right in fig. 1 is a first direction and a direction from right to left is a direction opposite to the first direction, a direction in which the coupling piece turns counterclockwise is a first direction of rotation and a direction in which the coupling piece turns clockwise is a direction opposite to the first direction of rotation. Referring to fig. 1 to 4, the door-lock apparatus may include: the first door hook 100 is arranged on the door body, the bracket 200 is connected to the box body, and the connecting piece 300, the first driving piece 400, the second driving piece 500 and the buffer piece 600 are further connected to the bracket 200.

The first door hook 100 includes a first hook portion 120 and a first mounting portion 110 for coupling to a door body. The first mounting portion 110 may be used to connect with a door body, the first mounting portion 110 may be implemented in various ways, and optionally, the first mounting portion 110 may include a mounting hole, and a screw may penetrate through the mounting hole and be screwed to a side surface of the door body; or alternatively, the first mounting portion 110 may include a protrusion, and the door body may be provided with a slot, and the protrusion may be snap-fitted into the slot.

The first hook 120 may be coupled to the first mounting portion 110 by welding, screwing, riveting, or the like, or alternatively, both may be integrally formed. The first hook 120 may include a first portion and a second portion that may be angled such that there is a first recessed area therebetween, e.g., the first hook 120 in fig. 1 has a downward first recessed area that causes the first hook 120 to be generally hook-shaped. The first hook 120 may protrude from the door body, so that the door body may extend into one side of the case body after being closed.

The bracket 200 may be a plate-shaped structure having a low thickness, and may include a connection part, which may be used to connect with the case. Alternatively, the connection part may include a plurality of through holes provided on the bracket 200, and the screws may penetrate through the through holes and be screwed to the case; or the connecting part can be clamped on the box body in a snap fit mode.

The stand 200 has a front side and a back side opposite the front side. Fig. 1 shows the front face 210 of the stand 200, and the connector 300, the first driver 400 and the bumper 600 may be located on the front face of the stand 200. Fig. 2 shows the back side 220 of the bracket 200, and the second driver 500 may be located on the back side of the connector 300.

The link 300 is able to rotate relative to the stand 200, i.e., the link 300 is able to rotate relative to the stand 200 about a fixed axis. For example, the connecting member 300 may be provided with a rotating portion 302, the rotating portion 302 may include a rotating through hole, the bracket 200 may be provided with a protruding rotating shaft, and the connecting member 300 may be sleeved outside the rotating shaft through the rotating through hole, so as to rotate the connecting member 300. In other embodiments, the rotating portion 302 may include a rotating shaft, and the bracket 200 may be provided with a rotating through hole, and the connecting member 300 may be sleeved in the rotating through hole through the rotating shaft, so as to rotate the connecting member 300. In addition, the connector 300 may be used to hook the first hook 120. In some embodiments, the connector 300 may have a flange capable of being engaged with the first recess region of the first hook 120, such that the connector 300 may be hooked with the first hook 120 during the closing of the door, and the first hook 120 may be pulled to move in the first direction when the connector 300 is rotated with respect to the bracket 200, thereby closing the door. The first direction is a direction from left to right in fig. 1, and is also a direction from right to left in fig. 2. It is understood that the first direction is only a moving direction of the first door hook 100 relative to the bracket 200 when the door is closed, and the first door hook 100 moves relative to the bracket 200 in a direction opposite to the first direction when the door is opened.

The first driving member 400 and the second driving member 500 may be a structure capable of supplying power, such as a linear motor, a hydraulic cylinder, a spring, or a resilient cord, etc. The first driving member 400 is connected between the bracket 200 and the connecting member 300 to drive the connecting member 300 to rotate in a first rotating direction relative to the bracket 200, so as to pull the first hook 120 to move in the first direction, thereby closing the door body. The first direction of rotation is counterclockwise in fig. 1, and also clockwise in fig. 2.

Taking the first driving member 400 as a spring as an example, one end of the spring may be connected to the bracket 200, and the other end of the spring may be connected to the connecting member 300, and when the first hook 120 hooks the connecting member 300, the spring may pull the connecting member 300 to rotate along the first rotation direction relative to the bracket 200, so as to pull the first hook 120 to move along the first direction, and the door body may move towards the box body, thereby closing the door. The first rotational direction is counterclockwise in fig. 1. It is understood that the first rotation direction is only the rotation direction of the link 300 with respect to the bracket 200 when the door is closed, and the link 300 rotates with respect to the link 300 in the opposite direction to the first rotation direction when the door is opened. The first driving member 400 may provide a pulling force or a pushing force. In some alternative embodiments, the driving member may be a tension spring capable of providing tension, so that the installation position of the driving member is more flexible.

And a second driver 500 connected between the bracket 200 and the link 300, the second driver 500 being movable from a first side to a second side of the rotational axis of the link 300 when the link 300 is rotated in the first rotational direction. Referring to fig. 2, it can be understood that the position of the end of the second driving member 500 coupled to the bracket 200 and a reference line a connecting the center of the end and the center of the rotating portion 302 are shown by dotted lines. The first side and the second side are two sides of the reference connecting line a, respectively, the first side is the upper right side of the reference connecting line a in fig. 2, and the second side may be the lower left side of the reference connecting line a in fig. 2. The second driver 500 moves from the first side to the second side, which can be understood as a line between both ends of the second driver 500 moves from the first side to the second side of the reference line a.

Referring to fig. 8C, at this time, the second driver 500 is located at the first side, and the second driver 500 may provide a torque opposite to the first rotation direction to the connection member 300. Referring to fig. 10C, at this time, the second driver 500 is located at the second side, and the second driver 500 may provide the same torque to the connector 300 as the first rotation direction.

When the door is closed, when the second driving element 500 rotates to be located at the second side, the second driving element 500 is used for providing torque along the first rotation direction to the connecting element 300, that is, the torque directions provided by the first driving element 400 and the second driving element 500 to the connecting element 300 are the same, so that the rotation speed of the connecting element 300 can be accelerated, and the door body can be quickly closed.

During door opening, when the link 300 is rotated in a direction opposite to the first rotation direction, the second driving member 500 can be moved from the second side to the first side, and the direction of the torque provided thereto is changed from the first rotation direction to a direction opposite to the first rotation direction.

The buffer 600 is attached to the bracket 200, and the buffer 600 is used to slow down the moving speed of the first hook 120 in the first direction. Alternatively, the damper 600 may be coupled to the link 300 to slow the rotation speed of the link 300 with respect to the bracket 200, thereby slowing the movement speed of the first hook 120 in the first direction when the door is closed. Or alternatively, the buffer member 600 may not be connected to the connection member 300, and may be disposed on a moving path of the first hook 120, and when the first hook 120 is closed in the first direction, the buffer member 600 may abut against the first hook 120, thereby generating a resistance force opposite to the first direction and slowing down a moving speed of the first hook 120.

The buffer member 600 is connected between the bracket 200 and the connecting member 300, and the buffer member 600 is used for slowing down the moving speed of the first hook-shaped portion 120 along the first direction, so that the collision between the door body and the box body is reduced, and the noise is reduced. The structure of the buffer member 600 may be various, for example, the buffer member 600 may also include an elastic structure such as a coil spring, or the buffer member 600 may be a damper structure such as a linear damper or a rotary damper. The buffer member 600 can provide an elastic force to block the movement of the first hook-shaped portion 120, and it can be understood that the power provided by the first driving member 500 can be greater than the resistance of the buffer member 600, so that the first hook-shaped portion 120 only slows down the movement speed and does not change the movement direction.

The buffering member 600 can be a one-way damper, when the first door hook 100 moves along the first direction, the one-way damper can slow down the moving speed of the first door hook 100, and when the first door hook 100 moves along the direction opposite to the first direction, the one-way damper does not provide damping, the moving speed of the first door hook 100 cannot be slowed down, so that the collision between the door body and the box body is relieved when the door is closed, the noise is reduced, otherwise, when the door is opened, the buffering member 600 cannot slow down the opening speed of the door body, and the user experience is improved.

In some embodiments, the linkage 300 includes a first arm 310 and a second arm 320 coupled to the first arm 310; the first arm 310 and the second arm 320 may be manufactured by an integrated process, the first arm 310 and the second arm 320 may extend in different directions, and the connection between the first arm 310 and the second arm 320 is rotatably disposed on the stand 200. For example, the joint of the first arm 310 and the second arm 320 may be provided with a rotating portion 302, and the axis of the rotating portion 302 may be the rotation axis of the connecting member 300.

The rotating portion 302 may be a rotating through hole, a protruding rotating shaft may be disposed on the bracket 200, and the first supporting arm 310 and the second supporting arm 320 may be sleeved outside the rotating shaft through the rotating through hole, so as to rotate relative to the bracket 200.

The first arm 310 may be mainly used to engage with the first hook 120 and connect with the first driving element 400, and the second arm 320 may be mainly used to connect with the second driving element 500 and the buffer element 600, so as to simplify the structure of the connecting element 300 and facilitate the processing.

As shown in fig. 4, the bracket 200 is provided with a first sliding hole 230, the end of the first arm 310 is provided with a first upright column 311 penetrating the first sliding hole 230, the back of the bracket 200 is provided with a second upright column 221, and two ends of the second driving member 500 are respectively connected with the first upright column 311 and the second upright column 221, so that the second driving member 500 and the first driving member 400 are respectively arranged at two sides of the bracket 200 to avoid movement interference.

First sliding hole 230 includes a first circular arc hole, and the extension length of first circular arc hole is greater than or equal to the moving path of first stand 311, it can be understood that the length of first circular arc hole can be the length of circular arc line, and the length of first circular arc hole is greater than the length of the moving track of first stand 311, thereby make first circular arc hole can provide the space of dodging for the removal of first stand 301, make second driving piece 500 can follow connecting piece 300 and rotate, make first sliding hole 230 can not restrict the rotation of first stand 311, and then can not restrict the rotation of connecting piece 300 that is connected with first stand 311.

FIG. 5 shows a front view of a door latch mechanism according to another embodiment of the present application; FIG. 6 is an enlarged view of a portion of FIG. 5; fig. 7 is an exploded view of fig. 6. As shown in fig. 5 to 7, in some embodiments, the door-lock apparatus further includes a third actuating member 700 connected between the link 300 and the bracket 200. When the link 300 is rotated in the first rotational direction, the third driver 700 can be moved from the third side to the fourth side of the rotational axis of the link 300. Referring to fig. 5, it can be understood that the position of the end of the third driving member 700 coupled to the bracket 200 and a reference line B connecting the center of the end and the center of the rotation portion 302 are shown by dotted lines. The third side and the fourth side are two sides of the reference connecting line B, respectively, the third side is the lower left side of the reference connecting line B in fig. 5, and the fourth side may be the upper right side of the reference connecting line B in fig. 5. The third driver 700 moves from the third side to the fourth side, it can be understood that the line between the two ends of the third driver 700 moves from the third side to the fourth side of the reference line B.

Referring to fig. 8B, at this time, the third driver 700 is positioned at the third side, and the third driver 700 may provide a torque opposite to the first rotation direction to the link 300. Referring to fig. 10B, at this time, the third driver 700 is located at the fourth side, and the third driver 700 may provide the same torque to the connector 300 as the first rotation direction.

When the door is closed, when the third driving element 700 rotates to be located on the fourth side, the third driving element 700 is configured to provide a torque along the first rotation direction to the connecting element 300, that is, the torque provided by the first driving element 400 and the torque provided by the third driving element 700 to the connecting element 300 are in the same direction, so that the rotation speed of the connecting element 300 can be accelerated, and the door body can be quickly closed.

When the link 300 is rotated in the direction opposite to the first rotation direction during the door opening process, the third driving member 700 can move from the fourth side to the third side, and the direction of the torque provided by the third driving member is changed from the first rotation direction to the direction opposite to the first rotation direction.

Referring to fig. 5 to 7, in order to protect the connecting member 300, in some embodiments, a cover 800 may be further disposed on the bracket 200 at a side of the connecting member 300 facing away from the bracket 200, and the cover 800 is provided with a third upright 810; the connecting piece 300 is provided with a fourth upright column 301, the cover body 800 is provided with a second sliding hole 820, and the fourth upright column 301 penetrates through the second sliding hole 820; the third driving member 700 is located on a side of the cover 800 facing away from the connecting member 300, and the third driving member 700 is connected between the third upright column 810 and the fourth upright column 301.

Alternatively, the cover 800 may have a variety of shapes. As shown in fig. 5, the cover 800 may be triangular in shape.

The cover body 800 can respectively arrange the second driving member 500 and the first driving member 400 at two sides of the bracket 200 to avoid movement interference.

With continued reference to fig. 5-7, the third post 810 is located on the side of the connecting member 300 away from the first hook 120, and the fourth post 301 is located between the rotating portion 302 and the end of the second arm 320 away from the rotating portion 302, so that the third driving member 700 can move between two sides of the rotation axis of the connecting member, and the headspace of the connecting member 300 can be utilized to avoid interference between surrounding components and the third driving member 700.

Second sliding hole 820 includes a second circular arc hole, and the extension length of the second circular arc hole is greater than or equal to the moving path of fourth upright 301. It can be understood that the length of the second circular arc hole may be the length of a circular arc line, and the length of the second circular arc hole is greater than the length of the moving track of the fourth upright 301, so that the second circular arc hole may provide an avoidance space for the movement of the fourth upright 301, so that the third driving member 700 may rotate along with the connecting member 300, and thus, the first sliding hole may not limit the rotation of the fourth upright 301, that is, the movement of the third driving member 700 and the connecting member 300 connected to the fourth upright 301.

According to some embodiments, in order to protect the buffer member 600, a buffer member cover 620 covering the buffer member 600 is further disposed on the bracket 200, and a cavity is defined between the buffer member cover 620 and the bracket 200.

Optionally, the buffer 600 includes a linear damper 610, the linear damper 610 has a damper body and an output end 612 capable of extending and retracting relative to the damper body along a linear direction; the linear damper body is rotatably disposed in the cavity, the output end 612 passes through the cavity, and the output end 612 is connected to the second arm 320.

The linear damper 610 serves to slow down the moving speed of the first hook 120 in the first direction. When the first hook 120 is moved in a direction opposite to the first direction, the linear damper 610 does not provide damping, i.e., the linear damper 610 provides damping only when the door is closed and does not provide damping when the door is opened, reducing the resistance to opening the door.

As shown in fig. 1, when the first hook is located on the outer side of the first arm 310 away from the second arm 320, a height difference perpendicular to the first direction exists between the end of the first arm 310 away from the rotating part 302 and the end of the second arm 320 away from the rotating part 302, and the height difference is used for allowing the first hook 120 to move from the outer side of the first arm 310 to between the first arm 310 and the second arm 320 along the first direction and pushing the second arm 320 to rotate along the first rotation direction, so that the first arm 310 hooks the first hook 120.

Taking a plane passing through the rotation axis of the connecting member 300 and parallel to the first direction as a reference plane, the distance from the distal end of the first arm 310 to the reference plane is D1, the distance from the distal end of the second arm 320 to the reference plane is D2, D1 may be smaller than D2, and the difference between D2 and D1 is the height difference, which is used to allow the first hook 120 to move from the outer side of the first arm 310 away from the second arm 320 to between the first arm 310 and the second arm 320 in the first direction, i.e., during the movement of the first hook 120 in the first direction to between the first arm 310 and the second arm 320, the tip end of the first hook 120 may not contact with the first arm 310 or just contact therewith, the first arm 310 may not interfere with the first arm 120, and the first hook 120 may smoothly enter between the first arm 310 and the second arm 320.

It is understood that, referring to fig. 1, by adjusting the position of the connecting member 300 at this time, the first arm 310 and the second arm 320 can be inclined with respect to the up-down direction of fig. 1, and there can be a height difference between the first arm 310 and the second arm 320. When the connecting member 300 is driven by the first driving member 400, the connecting member 300 rotates in the first rotating direction, and the height difference gradually decreases, so that the first arm 310 can move from the top of the connecting member 300 to the left side of the first hook 120, and the connecting member 300 can hook the first hook 120 and pull the first hook 120 to close the door.

When the first hook 120 is located on the outer side of the first arm 310 away from the second arm 320, the first pillar 311 abuts against the wall of the first sliding hole 230 to balance the connecting member in this position.

When the door body moves towards the box body under the action of external force, the first hook-shaped part 120 moves along the first direction relative to the support 200, when the door body moves to the position of the connecting piece 300, the first hook-shaped part 120 is hooked with the connecting piece 300, the connecting piece 300 is pulled to rotate relative to the support 200 by resultant moment generated by the first driving piece 400, the second driving piece 500 and the third driving piece 700, the first hook-shaped part 120 is further pulled to continue to move along the first direction, the buffer piece 600 can provide damping, the moving speed of the first hook-shaped part 120 along the first direction is slowed down, the speed of the door body impacting the box body is reduced, impact collision of the door body and the box body is reduced, and noise generated when the door body is closed is reduced.

Moreover, the door lock device provided by the embodiment has the advantages of simple structure and low cost, and the connecting piece 300 is set to rotate relative to the support 200 but cannot move relative to the support 200 along the first direction, so that the depth of the support 200 along the first direction can be reduced, the door lock device has a smaller structure occupation space, and the door lock device is suitable for models with different volumes and has strong universality.

FIG. 8A is a view showing a state in which the first hook is moved into contact with the second arm of the link during the closing of the door latch apparatus of FIG. 2; FIG. 8B is the schematic view of FIG. 8A with portions of the cover hidden; FIG. 8C is a back view of FIG. 8A; fig. 9A is a view illustrating a state in which the first arm pushes the first hook to move relative to the body during the door closing process of the door-lock apparatus of fig. 2; FIG. 9B is the schematic view of FIG. 9A with portions of the cover hidden; FIG. 9C is a rear view of FIG. 9A; FIG. 10A is a view showing a state in which the first hook pushes the first arm to rotate the link member with respect to the bracket during the opening of the door latch apparatus of FIG. 2; FIG. 10B is the schematic view of FIG. 10A with portions of the cover hidden; FIG. 10C is a back view of FIG. 10A; FIG. 11A is a view showing the door latch apparatus of FIG. 2 during opening of the door, with the connecting member rotated relative to the bracket until the second arm contacts the first hook; FIG. 11B is the schematic view of FIG. 11A with portions of the cover hidden; fig. 11C is a back view of fig. 11A.

Referring to fig. 8A, 8B, 8C and 9A, 9B, 9C, during the door closing process, the first hook 120 is located at the outer side of the first arm 310 away from the second arm 320 at the initial moment. When the user closes the door, a pushing force is applied to the door body in the first direction, and the first hook 120 is also pushed in the first direction since the first hook 120 is coupled to the door body through the first mounting portion 110. Due to the difference in height between the end of the first arm 310 facing away from the rotating part 302 and the end of the second arm 320 facing away from the rotating part 302, as shown in fig. 8A, 8B and 8C, the first hook 120 can move in the first direction from the outer side of the first arm 310 to between the first arm 310 and the second arm 320, move in the first direction, contact the second arm 320, and push the second arm 320 to rotate in the first rotating direction. After the first hook 120 and the connection member 300 move for a certain time, as shown in fig. 9A, 9B and 9C, the first arm 310 hooks the first hook 120. At this time, the first driving member 400 provides a moment to rotate the link in the first direction, so that the link 300 pushes the first door hook 120 to move in the first direction; the buffer member 600 provides a force to the connection member 300 in a direction opposite to the first direction so that the first door hook 120 does not move too fast, thereby reducing door closing noise. Meanwhile, when the second driving member 500 is at the first side of the connection member 300, a moment for blocking the connection member 300 from rotating in the first rotation direction is provided, and when the third driving member 700 is at the third side of the connection member 300, a moment for blocking the connection member 300 from rotating in the first rotation direction is provided, so that the rotation speed of the connection member 300 is not too fast, and thus the movement speed of the first door hook 120 in the first direction is not too fast; when the rotating member 300 moves in the first rotating direction for a certain displacement, the second driving member 500 rotates to the second side of the connecting member 300 to provide a moment for rotating the connecting member 300 in the first rotating direction, and the third driving member 700 rotates to the fourth side of the connecting member 300 to provide a moment for rotating the connecting member 300 in the first rotating direction. Since the damping force of the buffer member 600 is sufficiently large, the resultant torque of the first driving member 400, the second driving member 500, the third driving member 700, and the buffer member 600 is a torque for slowly rotating the connecting member in the first rotating direction, so that the first door hook 120 can still keep slowly moving in the first direction after being disengaged from the user's thrust.

Referring to fig. 10A, 10B, 10C and 11A, 11B, 11C, during door opening, the first hook 120 is located between the first arm 310 and the second arm 320 at the beginning. When a user opens the door, a pulling force in the opposite direction of the first direction is applied to the door body, and since the first hook-shaped portion 120 is connected to the door body through the first mounting portion 110, the first hook-shaped portion 120 is also pulled in the opposite direction of the first direction. As shown in fig. 10A, 10B and 10C, the first hook 120 can move in the opposite direction of the first direction until it is engaged with the first hook 120, at this time, the first driving member 400 provides a torque for rotating the link in the first direction, the second driving member 500 is located at the second side of the link 300 to provide a torque for rotating the link 300 in the first direction, and the third driving member 700 is located at the fourth side of the link 300 to provide a torque for rotating the link 300 in the first direction, so as to slow down the rotation of the link 300 in the opposite direction of the first direction, and further slow down the movement of the first hook 120 in the opposite direction of the first direction. As shown in fig. 11A, 11B and 11C, when the rotating member 300 moves in the first direction and moves in the opposite direction, the second driving member 500 rotates to the first side of the connecting member 300 to provide a moment for rotating the connecting member 300 in the opposite direction, and the third driving member 700 rotates to the fourth side of the connecting member 300 to provide a moment for rotating the connecting member 300 in the opposite direction, the resultant moment of the first driving member 400, the second driving member 500 and the third driving member 700 is a moment for rotating the connecting member in the opposite direction, so that the first door hook 120 can still move in the opposite direction after being disengaged from the pulling force of the user, and the door opening operation is further implemented. Optionally, the damper 600 does not provide a damping force during door opening. The opening speed of the door body can not be influenced.

With continued reference to fig. 1 and 2, in some embodiments, the door-lock apparatus further includes a second door hook 900, the second door hook 900 including a second mounting portion 910 for coupling with the door body and a second hook 920 coupled with the second mounting portion 910; the bracket 200 is provided with a fitting portion for hooking the second hook 920. The second mounting portion 910 may be used to be connected to a door body, and a connection manner of the second mounting portion 910 and the door body may refer to a connection manner of the first mounting portion 110 and the door body, which is not described herein again.

The second hook 920 may be coupled to the second mounting portion 910 by welding, screwing, riveting, or the like, or alternatively, both may be integrally formed. The second crook may also include a first portion and a second portion, which may be angled such that there is a second recessed area therebetween, e.g., the second crook in fig. 1 has an upwardly directed second recessed area that causes the second crook to be generally crook. The second hook-shaped part can protrude out of the door body, so that the door body can extend into one side of the box body after being closed.

Alternatively, the second hook may have the same structure as the first hook 120, may be oppositely disposed, and the mating part may have the same structure as the connector 300, so that the connection manner between the first hook 120 and the connector 300 is the same as the connection manner between the second hook 920 and the mating part.

Or alternatively, referring to fig. 1, the mating portion comprises a ramp disposed on the bracket 200; the ramp is obliquely arranged relative to the first direction; when the second hook part moves along the first direction, the second hook part slides along the ramp and is hooked on the end face of the ramp along the first direction. The first door hook 100 and the second door hook 900 are arranged at the same time, so that the reliability of the door body in closing can be improved, and the mode is simple in structure and easy to realize.

It is understood that in fig. 1, the first door hook 100 is located at the bottom of the second door hook 900, and in other embodiments, the first door hook 100 may be located at the top of the second door hook 900, and may be set according to actual situations.

The embodiment of the application also provides a cooking appliance, which comprises a door body, a box body and a door lock device; the first mounting portion 110 of the first hook 100 of the door lock device is coupled to the door body, and the bracket 200 of the door lock device is coupled to the cabinet.

The cooking utensil can be a microwave oven, an oven and other equipment, and the door body can be hinged on the box body through a vertical hinge. By connecting the first mounting portion 110 of the first hook 100 of the door-lock apparatus to a side of the door body departing from the hinge position and connecting the bracket 200 of the door-lock apparatus to a side of the cabinet body departing from the hinge position, the door-lock apparatus can be applied to the side of the door body and the cabinet body departing from the hinge position. The structure and function of the door lock device are the same as those of the above embodiments, and specific reference may be made to the above embodiments, which are not described herein again.

In the cooking appliance provided by the embodiment, the door lock device is arranged, and the connecting member 300, the first driving member 400, the second driving member 500 and the buffer member 600 are arranged on the bracket 200; the first driving unit 400 can drive the connecting unit 300 to rotate in a first rotating direction relative to the bracket 200, so as to pull the first hook 120 to move in the first direction to close the door body; when the second driver 500 is located at the first side, the second driver 500 may provide a torque opposite to the first rotation direction to the connection member 300; when the second driver 500 is located at the second side, the second driver 500 may provide the same torque to the connection member 300 as the first rotation direction; the buffer member 600, connected between the brackets 200, may slow down the movement of the first hook 120 in the first direction. Thereby reducing the impact collision between the door body and the box body and reducing the noise when the door is closed. And, when cooking utensil is microwave oven, because door locking device need not to set up a large amount of holes on the door body, it can reduce microwave oven leaky wave's risk when reducing the noise of closing the door, improves microwave oven's security.

It will be understood that in this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicate an orientation or positional relationship or dimension based on that shown in the drawings, and that such terms are used for convenience of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting to the scope of this application.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

This description provides many different embodiments or examples that can be used to implement the present application. It should be understood that these various embodiments or examples are purely exemplary and are not intended to limit the scope of protection of the present application in any way. Those skilled in the art can conceive of various changes or substitutions based on the disclosure of the specification of the present application, which are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope defined by the appended claims.

Claims

1. A door lock device, comprising:

the first door hook comprises a first hook-shaped part and a first mounting part used for being connected with the door body;

the bracket is used for being connected with the box body;

the connecting piece is rotatably connected to the bracket and is used for hooking the first hook-shaped part;

the first driving piece is connected between the bracket and the connecting piece and used for driving the connecting piece to rotate along a first rotating direction relative to the bracket, so that the first hook-shaped part is pulled to move along the first direction to close the door body;

a second driver connected between the bracket and the link, the second driver being movable from a first side to a second side of the rotational axis of the link when the link is rotated in the first rotational direction, the second driver being adapted to provide a torque to the link opposite the first rotational direction when the second driver is positioned on the first side; the second driver is used for providing the torque to the connecting piece in the same direction as the first rotating direction when the second driver is positioned on the second side;

and the buffer piece is connected between the brackets and used for slowing down the moving speed of the first hook-shaped part along the first direction.

2. The door-lock apparatus according to claim 1,

the connecting piece comprises a first support arm used for hooking the first hook-shaped part and a second support arm connected to the first support arm; the second support arm is positioned on one side of the first support arm, which is far away from the first mounting part, and a rotating part which is rotatably connected to the support is arranged at the joint of the first support arm and the second support arm;

the first driving piece is connected with the second support arm; the second driving piece is connected with the first supporting arm; the buffer is connected with the second support arm.

3. The door-lock apparatus according to claim 2,

when the first hook-shaped part is positioned on the outer side of the first support arm, which is far away from the second support arm, a height difference perpendicular to the first direction is formed between the tail end of the first support arm, which is far away from the rotating part, and the tail end of the second support arm, which is far away from the rotating part, and the height difference is used for allowing the first hook-shaped part to move from the outer side of the first support arm to a position between the first support arm and the second support arm along the first direction, and pushing the second support arm to rotate along the first rotation direction, so that the first support arm is hooked with the first hook-shaped part.

4. The door-lock apparatus according to claim 2,

the bracket has a front face and a back face opposite the front face; the connecting piece, the first driving piece and the buffer piece are located on the front face of the support, and the second driving piece is located on the back face of the connecting piece.

5. The door-lock apparatus according to claim 4,

the support is provided with a first sliding hole, the tail end of the first support arm is provided with a first stand column penetrating through the first sliding hole, the back face of the support is provided with a second stand column, and two ends of the second driving piece are respectively connected with the first stand column and the second stand column.

6. The door-lock apparatus according to claim 5,

when the first hook-shaped part is positioned on the outer side of the first support arm, which is far away from the second support arm, the first upright post abuts against the hole wall of the first sliding hole.

7. The door-lock apparatus according to claim 5,

the first sliding hole comprises a first arc hole, and the extending length of the first arc hole is larger than or equal to the moving path of the first upright post.

8. The door-lock apparatus according to any one of claims 2 to 7, further comprising:

a third driver connected between the link and the bracket, the third driver being movable from a third side to a fourth side of the rotational axis of the link when the link is rotated in the first rotational direction;

the third driver is configured to provide a torque to the link opposite the first rotational direction when the third driver is on the third side; when the third driver is located on the fourth side, the third driver is configured to provide the same torque to the connector as the first rotational direction.

9. The door-lock apparatus according to claim 8,

a cover body positioned on one side, away from the support, of the connecting piece is arranged on the support, and a third upright post is arranged on the cover body;

a fourth upright post is arranged on the connecting piece, a second sliding hole is arranged on the cover body, and the fourth upright post penetrates through the second sliding hole;

the third driving piece is located the cover body deviates from one side of the connecting piece, and the third driving piece is connected between the third stand column and the fourth stand column.

10. The door latch mechanism according to claim 9, wherein the door latch mechanism is a door latch mechanism

The third upright post is positioned on one side of the connecting piece departing from the first hook-shaped part, and the fourth upright post is positioned between the rotating part and the tail end of the second support arm departing from the rotating part.

11. The door-lock apparatus according to claim 9,

the second sliding hole comprises a second arc hole, and the extending length of the second arc hole is larger than or equal to the moving path of the fourth upright column.

12. The door lock device according to any one of claims 2 to 7, wherein a buffer cover is further provided on the bracket, and a cavity is defined between the buffer cover and the bracket;

the buffer piece comprises a linear damper, and the linear damper is provided with a damper body and an output end which can stretch relative to the damper body along a linear direction; the damper body is rotationally arranged in the cavity, the output end penetrates through the outside of the cavity, and the output end is connected with the second support arm.

13. A cooking appliance comprising a door body, a cabinet and the door lock device according to any one of claims 1 to 12;

the first installation part of the first door hook of the door lock device is connected to the door body, and the support of the door lock device is connected to the box body.