CN118065714A - Door lock assembly and door box device - Google Patents

Abstract

The invention relates to a door lock assembly and door box equipment, which can automatically jack a door body to a certain angle when a door is opened and reduce the resistance which needs to be overcome by the door body when the door is closed. The door lock assembly includes: the locking hook and lock mechanism comprises a base, a locking piece rotatably arranged on the base and a pushing piece slidably arranged on the base; the locking piece is provided with a rotation axis, a locking groove which extends along the direction perpendicular to the rotation axis and is matched with the locking hook, a locking surface facing the locking groove and an unlocking surface facing away from the locking groove, wherein the locking surface and the unlocking surface extend along the direction parallel to the rotation axis and gradually towards the pushing piece; when the pushing piece abuts against the locking surface, the pushing piece applies locking torque to the locking piece so as to drive the locking piece to rotate positively to lock the lock hook in the locking groove; when the pushing piece pushes the unlocking surface, the pushing piece applies unlocking torque with opposite directions to the locking piece so as to drive the locking piece to reversely rotate and eject the locking hook from the locking groove.

Description

Door lock assembly and door box device

Technical Field

The invention relates to the technical field of household appliances, in particular to a door lock assembly and door box equipment.

Background

Door box devices such as washing machines or dish washers are relatively common household appliances; in general, a door box apparatus is required to not only releasably lock a door body to a box body using a door lock structure, but also additionally provide a push rod structure for ejecting the door body by a distance when opening a door to automatically open the door in a small angle range. However, on one hand, after the existing push rod mechanism pushes out the door body, the push rod stretches out longer, so that the appearance is affected; on the other hand, in the door closing process, the door body needs to overcome the thrust of the push rod mechanism and the door locking force simultaneously to be closed, and along with the reduction of the opening and closing angle of the door body, the larger the resistance to be overcome is, so that the door closing experience of a user is seriously influenced.

Disclosure of Invention

Based on the above, the door lock assembly and the door box device provided by the invention can automatically jack the door body by a certain angle when the door is opened, reduce the resistance required to be overcome by the door body when the door is closed and facilitate improvement of user experience aiming at the problem that the existing door box device needs to overcome larger resistance when the door is closed.

In one embodiment of the present application, the present application provides a door lock assembly for being disposed between a door body and a case, comprising:

A latch hook; and

The locking mechanism comprises a base, a locking piece rotatably arranged on the base and a pushing piece slidably arranged on the base; the locking piece is provided with a rotation axis, a locking groove which extends along the direction perpendicular to the rotation axis and is matched with the locking hook, a locking surface facing the locking groove and an unlocking surface facing away from the locking groove, wherein the locking surface and the unlocking surface extend along the direction parallel to the rotation axis and are asymptotically towards the pushing piece; when the pushing piece abuts against the locking surface of the locking piece, the pushing piece applies locking torque to the locking piece so as to drive the locking piece to rotate positively around the rotation axis to lock the lock hook in the locking groove; when the pushing piece abuts against the unlocking surface of the locking piece, the pushing piece applies unlocking torque opposite to the locking torque to the locking piece so as to drive the locking piece to reversely rotate around the rotating axis to eject the locking hook from the locking groove.

According to an embodiment of the present application, the locking member includes a rotation shaft portion that provides the rotation axis, an ejector portion that extends radially from the rotation shaft portion, a hooking portion that extends circumferentially from the rotation shaft portion toward a direction approaching the ejector portion, and an abutting portion that extends circumferentially from the ejector portion; the ejection part and the hooking part are arranged at intervals to form the locking groove; the abutment has a heart-shaped structure to provide the locking surface and the unlocking surface.

According to one embodiment of the application, the lock mechanism further comprises a return member and a driving member, the return member being arranged between the base and the locking member for applying a return torque to the locking member in a direction opposite to the locking torque; the driving piece is in driving connection with the pushing piece and is used for driving the pushing piece to be close to or far away from the locking piece.

According to one embodiment of the application, the return member is a return torsion spring.

According to an embodiment of the present application, the urging member includes a carriage slidably provided to the base in a direction parallel to the rotation axis, an urging rod slidably provided to the carriage and extending toward the locking member, and an elastic member provided between the carriage and the base; the sliding frame slides towards the locking piece under the action of the elastic force of the elastic piece so as to drive the pushing rod to be propped against the locking surface or the unlocking surface of the locking piece.

According to one embodiment of the application, the elastic member is a compression spring, one end of the compression spring is abutted against one side of the sliding frame, which is away from the locking member, and the other end of the compression spring is abutted against the base in an adjustable position.

According to one embodiment of the application, the push rod is provided with a first push inclined surface matched with the locking surface and a second push inclined surface matched with the unlocking surface; when the door lock assembly is in a locking state, the first pushing inclined surface of the pushing piece is attached to the locking surface of the locking piece; when the door lock assembly is in an unlocking state, the second pushing inclined surface of the pushing piece is attached to the unlocking surface of the locking piece.

According to one embodiment of the application, the angle between the first pushing inclined surface and the rotation axis is smaller than the angle between the second pushing inclined surface and the rotation axis.

According to one embodiment of the present application, the driving member includes a telescopic device mounted to the base, a slider drivingly connected to the telescopic device, and a link slidably provided to the carriage in a direction perpendicular to the rotation axis; the ejector pin further has an unlocking slide extending obliquely with respect to the rotation axis; one end of the connecting rod is slidably connected with the sliding block along the direction parallel to the rotation axis, and the other end of the connecting rod is slidably inserted into the unlocking slide way of the push rod.

According to one embodiment of the application, the ejector rod further has a locking slide extending perpendicularly with respect to the axis of rotation, which locking slide communicates with an end of the unlocking slide remote from the locking element.

According to another aspect of the present application, an embodiment of the present application further provides a door box apparatus, including: a case;

A door body; and

The door lock assembly of any one of the above, wherein the lock mechanism in the door lock assembly is arranged on the box body, and the lock hook in the door lock assembly is arranged on the door body.

In summary, when the door box device is in a door opening state, the pushing piece is pressed against the unlocking surface of the locking piece, so that the notch of the locking groove faces the locking hook; at this time, if the user pushes the door body to perform a door closing operation, the latch hook is driven by the door body to extend into the locking groove and push against the locking piece, so as to overcome the unlocking torque applied to the locking piece by the pushing piece and push the locking piece to rotate forward around the rotation axis, so that the pushing piece slides to the locking surface along the unlocking surface; furthermore, when the pushing piece slides to the locking surface, the pushing piece applies a locking torque opposite to the unlocking torque to the locking piece, so that not only does not apply resistance to the locking hook, but also a pulling force is applied to the locking hook, so that the door closing resistance is reduced, and the locking hook is locked in the locking groove; in this way, the user can complete the door closing operation of the door box apparatus with a small pushing force.

In addition, when the door box equipment is in a door closing state, the pushing piece is pressed against the locking surface of the locking piece, so that the locking hook is locked in the locking groove; at this time, if the user performs the door opening operation, only the pushing piece is required to be pressed against the unlocking surface, so that the locking piece reversely rotates around the rotation axis under the action of the unlocking moment applied by the pushing piece, and the locking hook is automatically pushed open within a certain angle range, so that the locking hook is separated from the locking groove. In other words, the door lock assembly has an integral structure of the door lock, the top and the door, has simple and reliable structure, and can realize the integrated functions of locking the manual door lock and ejecting the door body by a certain angle.

Drawings

Fig. 1 is a schematic perspective view of a door box apparatus according to an embodiment of the present application;

fig. 2 shows a perspective view of a door lock assembly in a door box apparatus according to the above-described embodiment of the present application;

fig. 3 shows an exploded view of a door lock assembly according to the above-described embodiment of the present application;

fig. 4 is a perspective view showing a locking member in the door lock assembly according to the above embodiment of the present application;

Fig. 5 is a state diagram showing a door lock assembly in a locked state according to the above-described embodiment of the present application;

fig. 6 is a schematic view showing a state in which the door lock assembly is in an unlocked state according to the above-described embodiment of the present application;

Fig. 7 is a schematic view showing a state in which the door lock assembly according to the above embodiment of the present application is between the locked state and the unlocked state;

fig. 8 shows an enlarged schematic view of a portion a of the door lock assembly shown in fig. 7.

Description of main reference numerals: 1. a door lock assembly; 10. a lock mechanism; 11. a base; 12. a locking member; 1201. an axis of rotation; 1202. a locking groove; 1203. a locking surface; 1204. unlocking surface; 121. a rotating shaft portion; 122. an ejection part; 123. a hooking part; 124. an abutting portion; 13. a pushing member; 131. a carriage; 132. pushing the push rod; 1321. a first pushing inclined plane; 1322. a second pushing inclined plane; 1323. unlocking the slideway; 1324. locking the slideway; 133. an elastic member; 1330. a pressure spring; 14. a reset member; 140. a reset torsion spring; 15. a driving member; 151. a telescopic device; 152. a slide block; 153. a connecting rod; 20. a latch hook; 2. a case; 3. a door body.

The foregoing general description of the invention will be described in further detail with reference to the drawings and detailed description.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Considering that the existing door box equipment can eject the door body in a small angle range through the pushing mechanism to realize automatic door opening, but the door can be closed only by overcoming larger resistance when the door is closed. Therefore, the door lock assembly and the door box device can automatically jack the door body to a certain angle when the door is opened, reduce the resistance which needs to be overcome by the door body when the door is closed, and facilitate improvement of user experience.

Specifically, referring to fig. 1, one embodiment of the present application provides a door box apparatus that may include a box 2 having an opening, a door 3 for closing the opening of the box 2, and a door lock assembly 1 disposed between the box 2 and the door 3. It will be appreciated that the door box apparatus of the present application may be implemented, but is not limited to, as an in-line dishwasher, a tub dishwasher, a washing machine or a refrigerator, etc.; in addition, the door box apparatus of the present application may include, but is not limited to, a functional main body capable of performing functions such as dish washing, laundry washing, or refrigeration, and the present application will not be described herein.

More specifically, as shown in fig. 2 to 8, the door lock assembly 1 may include a lock mechanism 10 and a latch hook 20 for mounting to the door body 3. The lock mechanism 10 includes a base 11 for mounting to the case 2, a locking member 12 rotatably provided to the base 11, and a pushing member 13 slidably provided to the base 11. The locking member 12 has a rotation axis 1201, a locking groove 1202 extending in a direction perpendicular to the rotation axis 1201 and mating with the locking hook 20, a locking surface 1203 facing the locking groove 1202, and an unlocking surface 1204 facing away from the locking groove 1202, the locking surface 1203 and the unlocking surface 1204 extending asymptotically in a direction parallel to the rotation axis 1201 and toward the pusher 13. It will be appreciated that in other examples of the present application, the positions of the latch hook 20 and the lock mechanism 10 may be interchanged, i.e. the latch hook 20 may be disposed on the case 2, and the lock mechanism 10 may be disposed on the door 3, which will not be described in detail herein.

As shown in fig. 5, when the pushing member 13 abuts against the locking surface 1203 of the locking member 12, the pushing member 13 applies a locking torque to the locking member 12 to drive the locking member 12 to rotate forward around the rotation axis 1201 to lock the latch hook 20 in the locking slot 1202; as shown in fig. 6, when the pushing member 13 abuts against the unlocking surface 1204 of the locking member 12, the pushing member 13 applies an unlocking torque opposite to the locking torque to the locking member 12, so as to drive the locking member 12 to reversely rotate around the rotation axis 1201 to eject the locking hook 20 from the locking slot 1202. It will be appreciated that reference to forward rotation in the present application refers to counter-clockwise rotation as shown in fig. 4, and correspondingly reverse rotation refers to clockwise rotation as shown in fig. 4.

It should be noted that, as shown in fig. 5 to 7, when the door box apparatus is in the door opening state, the pushing member 13 is pressed against the unlocking surface 1204 of the locking member 12, so that the notch of the locking slot 1202 faces the locking hook 20; at this time, if the user pushes the door body 3 to perform the door closing operation, the latch hook 20 is driven by the door body 3 to extend into the locking slot 1202 and press against the locking member 12, so as to overcome the unlocking torque applied by the pushing member 13 to the locking member 12 and push the locking member 12 to rotate forward around the rotation axis 1201, so that the pushing member 13 slides along the unlocking surface 1204 to the locking surface 1203; when the pushing member 13 slides to the locking surface 1203, the pushing member 13 will apply a locking torque to the locking member 12 opposite to the unlocking torque, not only will not apply a resistance to the locking hook 20, but also will apply a pulling force to the locking hook 20, so as to reduce the door closing resistance, so that the locking hook 20 is locked in the locking slot 1202; in this way, the user can complete the door closing operation of the door box device with a small pushing force.

Similarly, when the door box apparatus is in the door-closed state, the pushing member 13 is pressed against the locking surface 1203 of the locking member 12, so that the locking hook 20 is locked in the locking groove 1202; at this time, if the user performs the door opening operation, the pushing member 13 is only required to be pressed against the unlocking surface 1204, and the locking member 12 will reversely rotate around the rotation axis 1201 under the action of the unlocking moment applied by the pushing member 13, so as to automatically push the locking hook 20 in a certain angle range, so that the locking hook 20 is disengaged from the locking slot 1202.

As illustrated in fig. 3 and 4, the locking member 12 may include a rotation shaft portion 121 providing the rotation axis 1201, an ejector portion 122 extending radially from the rotation shaft portion 121, a hooking portion 123 extending circumferentially from the rotation shaft portion 121 toward a direction approaching the ejector portion 122, and an abutment portion 124 extending axially from the ejector portion 122; the ejection portion 122 is spaced apart from the hooking portion 123 to form the locking slot 1202; the abutment 124 has a heart-shaped configuration to provide the locking surface 1203 and the unlocking surface 1204.

Thus, when the user pushes the door body 3 to close the door, the latch hook 20 firstly contacts the ejection portion 122 of the locking member 12 under the driving of the door body 3, so as to overcome the unlocking torque applied by the pushing member 13 and push the locking member 12 to rotate around the rotation axis 1201 in a forward direction, so that the latch hook 20 slides into the locking slot 1202; simultaneously, the pushing member 13 slides along the unlocking surface 1204 toward the locking surface 1203; when the pushing member 13 slides to the locking surface 1203, the locking member 12 continues to rotate forward around the rotation axis 1201 under the action of the locking torque applied by the pushing member 13, so as to pull the locking hook 20 through the hooking portion 123 of the locking member 12, so that the locking hook 20 is locked in the locking slot 1202, and locking is completed. It can be understood that a door seal is usually arranged between the box body 2 and the door body 3 in the door box equipment to improve the sealing performance of the door box, so that the elastic force of the door seal needs to be overcome when the door is closed; the locking torque applied by the pushing member 13 to the locking member 12 in the door lock assembly 1 of the present application can provide a door sealing force to overcome the elastic force of the door seal.

When the door is opened, the locking member 12 reversely rotates around the rotation axis 1201 under the action of the unlocking torque applied by the pushing member 13, so that the ejection portion 122 of the locking member 12 pushes the locking hook 20, so that the locking hook 20 is disengaged from the locking slot 1202, and unlocking is completed.

According to the above-described embodiment of the present application, in order to achieve automatic unlocking of the door lock assembly 1, as shown in fig. 2 and 3, the lock mechanism 10 may further include a reset member 14 and a driving member 15; the return member 14 is provided between the base 11 and the lock member 12 for applying a return torque to the lock member 12 in a direction opposite to the lock torque; the driving member 15 is drivingly connected to the pushing member 13, and is used for driving the pushing member 13 to approach or depart from the locking member 12. It will be appreciated that in other examples of the present application, the door lock assembly 1 may not include the reset member 14, but the locking member 12 may be eccentrically disposed to achieve a desired reset function by the self-gravity of the locking member 12, which will not be described in detail herein.

Thus, as shown in fig. 5 and 7, when it is desired to open the door, the urging member 13 is driven by the driving member 15 away from the locking surface 1203 of the locking member 12 to remove the locking torque applied to the locking member 12, so that the locking member 12 is reversely rotated about the rotation axis 1201 by the restoring torque applied by the restoring member 14 to urge the latch hook 20 to slide toward the notch of the locking groove 1202 by the ejector 122 and rotate the unlocking surface 1204 of the locking member 12 to a position facing the urging member 13; at this time, as shown in fig. 6, if the driving force applied to the pushing member 13 is removed by the driving member 15, the pushing member 13 will abut against the unlocking surface 1204 of the locking member 12 to apply an unlocking torque in the same direction as the resetting torque, so that the locking member 12 continues to rotate reversely about the rotation axis 1201 under the combined action of the resetting torque and the unlocking torque, so as to continuously push the latch hook 20 through the ejection portion 122 to release from the locking slot 1202, thereby pushing the door body 3 out by a certain angle while unlocking is completed, and facilitating the door body 3 to complete automatic door opening under the action of self gravity.

It should be noted that, when the unlocking surface 1204 of the locking member 12 rotates to a position facing the pushing member 13, if the driving member 15 drives the pushing member 13 in a reverse direction to increase the pushing force applied by the pushing member 13 to the unlocking surface 1204, the unlocking torque applied by the pushing member 13 to the locking member 12 will be increased, so as to better push the latch hook 20, and ensure that the door 3 is pushed out by a certain angle.

In addition, when the pushing member 13 pushes the locking surface 1203 of the locking member 12 during the door closing process, the driving member 15 may also reversely drive the pushing member 13 to increase the pushing force applied by the pushing member 13 to the locking surface 1203, so that the locking torque applied by the pushing member 13 to the locking member 12 may be increased, so as to better pull the latch hook 20 to complete locking, so that the door body 3 is automatically pulled back to complete locking after being closed at a certain angle.

Alternatively, as shown in fig. 3, 5, 6 and 7, the restoring member 14 is implemented as a restoring torsion spring 140, the restoring torsion spring 140 is sleeved on the rotating shaft portion 121, one end of the restoring torsion spring 140 is limited and connected to the base 11, and the other end of the restoring torsion spring 140 is limited and connected to the hooking portion 123, so as to apply restoring torque to the locking member 12 by torsion force. It should be understood that the limiting connection mentioned in the present application may be, but not limited to, an abutting, fixedly connected, clamped or inserted connection, so long as the reset torsion spring 140 can apply a required reset torque to the locking member 12, which is not described in detail herein; in addition, the restoring element 14 of the present application may be embodied as a device such as a tension spring, a compression spring, a rubber band, or a magnetic element that provides the desired restoring function.

Alternatively, as shown in fig. 2 to 7, the pushing member 13 includes a carriage 131 slidably provided to the base 11 in a direction parallel to the rotation axis 1201, a pushing rod 132 slidably provided to the carriage 131 and extending toward the locking member 12, and an elastic member 133 provided between the carriage 131 and the base 11; the sliding frame 131 slides towards the locking piece 12 under the elastic force of the elastic piece 133, so as to drive the pushing rod 132 to press against the locking surface 1203 or the unlocking surface 1204 of the locking piece 12, thereby applying locking torque or unlocking torque to the locking piece 12.

Alternatively, as shown in fig. 3 to 7, the elastic member 133 is implemented as a compression spring 1330; one end of the compression spring 1330 is abutted against one side of the sliding frame 131 away from the locking member 12, and the other end of the compression spring 1330 is adjustably abutted against the base 11, so that when an elastic force towards the locking member 12 is applied to the sliding frame 131 through the compression spring 1330, the pre-compression force of the compression spring 1330 can be adjusted by adjusting the position of the other end of the compression spring 1330. It is understood that the elastic member 133 may be implemented as a tension spring, one end of which is fixedly connected to the locking member 12, and the other end of which is fixedly connected to the base 11, so long as an elastic force toward the locking member 12 can be applied to the sliding frame 131.

Optionally, as shown in fig. 3 and 8, the ejector pin 132 has a first ejector ramp 1321 that mates with the locking surface 1203 and a second ejector ramp 1322 that mates with the unlocking surface 1204. Thus, as shown in fig. 5, when the door lock assembly 1 is in the locked state, the first pushing inclined surface 1321 of the pushing rod 132 is attached to the locking surface 1203 of the locking member 12; as shown in fig. 6, when the door lock assembly 1 is in the unlocked state, the second pushing inclined surface 1322 of the pushing rod 132 is attached to the unlocking surface 1204 of the locking member 12.

Alternatively, as shown in fig. 8, the angle a between the first pushing inclined plane 1321 and the rotation axis 1201 is smaller than the angle B between the second pushing inclined plane 1322 and the rotation axis 1201, so that the unlocking surface 1204 of the locking member 12 can easily push the pushing rod 132 to move downward, and the locking surface 1203 of the locking member 12 is difficult to push the pushing rod 132 to move downward, so as to improve the locking reliability of the door lock assembly 1. Thus, during the locking process, the unlocking surface 1204 of the locking member 12 can easily push the pushing rod 132 to move downwards, so that the first pushing inclined surface 1321 of the pushing rod 132 presses against the locking surface 1203 of the locking member 12 to complete locking after the locking member 12 is turned over; in the unlocking process, the locking surface 1203 of the locking member 12 needs to be driven by the driving member 15 to push the pushing rod 132 downward, so that the second pushing inclined surface 1322 of the pushing rod 132 abuts against the unlocking surface 1204 of the locking member 12 to complete unlocking after the locking member 12 is turned over.

According to the above embodiment of the present application, as shown in fig. 2, 3 and 5, the driving member 15 may include a telescopic device 151 mounted on the base 11, a slider 152 drivingly connected to the telescopic device 151, and a link 153 slidably disposed on the carriage 131 along a direction perpendicular to the rotation axis 1201. The ejector pin 132 further has an unlocking slide 1323 extending obliquely with respect to the rotation axis 1201; one end of the link 153 is slidably connected to the slider 152 along a direction parallel to the rotation axis 1201, and the other end of the link 153 is slidably inserted into the unlocking slide 1323 of the push rod 132.

Thus, as shown in fig. 5 and 7, when the door needs to be unlocked, only the telescopic device 151 needs to be controlled to retract to pull back the sliding block 152, the connecting rod 153 will slide rightward along the unlocking slide 1323 under the pull of the sliding block 152, so that the push rod 132 slides relative to the sliding frame 131 and is far away from the locking surface 1203 of the locking member 12; at this time, the locking member 12 is reversely rotated under the restoring torque of the restoring member 14 to rotate the unlocking surface 1204 of the locking member 12 to a position corresponding to the push rod 132; then, when the expansion device 151 is controlled to be expanded to push out the slider 152, the link 153 slides leftwards along the unlocking slide 1323 under the pushing of the slider 152, so that the push rod 132 slides relative to the sliding frame 131 to approach the unlocking surface 1204 of the locking member 12 until the push rod is pressed against the unlocking surface 1204 to complete unlocking. It is to be understood that the telescopic device 151 according to the present application may be, but not limited to, implemented as a telescopic cylinder or a coil motor, etc., which may be controlled by pressing an unlock button, and the present application will not be described again.

Optionally, as shown in fig. 3 and 5, the push rod 132 further has a locking slide 1324 extending perpendicularly with respect to the axis of rotation 1201, the locking slide 1324 communicating with an end of the unlocking slide 1323 remote from the locking member 12 to form a splayed slide. Thus, after the expansion link 151 is expanded to push the link 153 from the unlocking slide 1323 into the locking slide 1324 by the slider 152, the push rod 132 is fixed with respect to the carriage 131 and held in a position close to the locking member 12 so as to reliably press against the locking surface 1203 of the locking member 12, providing a stable locking torque to stably hold the door lock assembly 1 in the locked state.

It should be noted that, since the pushing member 13 of the present application is elastically abutted against the locking member 12, it is not hard-connected; therefore, even if a user carelessly puts his or her hand between the door body 3 and the case 2 during the door closing process, the locking torque applied to the locking member 12 by the pushing member 13 is not increased as sharply as hard connection due to the elastic force provided by the elastic member 133 in the pushing member 13, so that the user's hand is not injured, and the safety performance of the door case apparatus is improved.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.

Claims (11)

1. The lock subassembly for set up between box and door body, its characterized in that includes:

A latch hook; and

The locking mechanism comprises a base, a locking piece rotatably arranged on the base and a pushing piece slidably arranged on the base; the locking piece is provided with a rotation axis, a locking groove which extends along the direction perpendicular to the rotation axis and is matched with the locking hook, a locking surface facing the locking groove and an unlocking surface facing away from the locking groove, wherein the locking surface and the unlocking surface extend along the direction parallel to the rotation axis and are asymptotically towards the pushing piece; when the pushing piece abuts against the locking surface of the locking piece, the pushing piece applies locking torque to the locking piece so as to drive the locking piece to rotate positively around the rotation axis to lock the lock hook in the locking groove; when the pushing piece abuts against the unlocking surface of the locking piece, the pushing piece applies unlocking torque opposite to the locking torque to the locking piece so as to drive the locking piece to reversely rotate around the rotating axis to eject the locking hook from the locking groove.

2. The door lock assembly according to claim 1, wherein the lock member includes a rotation shaft portion that provides the rotation axis, an ejector portion that extends radially from the rotation shaft portion, a hooking portion that extends circumferentially from the rotation shaft portion toward a direction approaching the ejector portion, and an abutting portion that extends circumferentially from the ejector portion; the ejection part and the hooking part are arranged at intervals to form the locking groove; the abutment has a heart-shaped structure to provide the locking surface and the unlocking surface.

3. The door lock assembly according to claim 1 or 2, wherein the lock mechanism further comprises a return member and a driving member, the return member being disposed between the base and the locking member for applying a return torque to the locking member in a direction opposite to the locking torque; the driving piece is in driving connection with the pushing piece and is used for driving the pushing piece to be close to or far away from the locking piece.

4. The door lock assembly of claim 3, wherein the return member is a return torsion spring.

5. The door lock assembly according to claim 3, wherein the urging member includes a carriage slidably provided to the base in a direction parallel to the rotation axis, an urging rod slidably provided to the carriage and extending toward the locking member, and an elastic member provided between the carriage and the base; the sliding frame slides towards the locking piece under the action of the elastic force of the elastic piece so as to drive the pushing rod to be propped against the locking surface or the unlocking surface of the locking piece.

6. The door lock assembly according to claim 5, wherein the elastic member is a compression spring, one end of the compression spring is abutted against one side of the sliding frame, which is away from the locking member, and the other end of the compression spring is adjustably abutted against the base.

7. The door lock assembly of claim 5, wherein the push rod has a first push ramp surface that mates with the locking surface and a second push ramp surface that mates with the unlocking surface; when the door lock assembly is in a locking state, the first pushing inclined surface of the pushing piece is attached to the locking surface of the locking piece; when the door lock assembly is in an unlocking state, the second pushing inclined surface of the pushing piece is attached to the unlocking surface of the locking piece.

8. The door lock assembly of claim 7, wherein an angle between the first urging ramp and the axis of rotation is less than an angle between the second urging ramp and the axis of rotation.

9. The door lock assembly according to claim 5, wherein the driving member includes a retractor mounted to the base, a slider drivingly connected to the retractor, and a link slidably provided to the carriage in a direction perpendicular to the rotational axis; the ejector pin further has an unlocking slide extending obliquely with respect to the rotation axis; one end of the connecting rod is slidably connected with the sliding block along the direction parallel to the rotation axis, and the other end of the connecting rod is slidably inserted into the unlocking slide way of the push rod.

10. The door lock assembly of claim 9, wherein the ejector rod further has a locking slide extending perpendicularly relative to the axis of rotation, the locking slide being in communication with an end of the unlocking slide remote from the locking member.

11. Door case apparatus, characterized by comprising:

A case;

A door body; and

The door lock assembly as claimed in any one of claims 1 to 10, wherein a lock mechanism in the door lock assembly is provided to the housing, and a lock hook in the door lock assembly is provided to the door body.