WO2024087972A1

WO2024087972A1 - Door lock assembly and box device

Info

Publication number: WO2024087972A1
Application number: PCT/CN2023/120841
Authority: WO
Inventors: 王兆鑫; 张�浩; 张振兴; 张海洲
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-10-26
Filing date: 2023-09-22
Publication date: 2024-05-02

Abstract

The present application relates to the technical field of storage devices, and discloses a door lock assembly, comprising a driving push rod, a spring bolt, a fixed push rod, and a positioning apparatus or a vacuum apparatus. The driving push rod is connected to a handle by means of a connecting rod assembly, and the driving push rod is provided with a sliding slot. The spring bolt comprises a first abutting surface that is capable of abutting against the driving push rod, and a second abutting surface that is arranged corresponding to the first abutting surface. The fixed push rod comprises a first insertion portion inserted into the driving push rod, and a first abutting portion that is capable of abutting against the second abutting surface of the spring bolt. The positioning apparatus comprises a first elastic element for pushing the fixed push rod. When the door lock assembly is in a locking state, the spring bolt abuts against the fixed push rod, and the handle may drive the driving push rod by means of the connecting rod assembly to move and squeeze the first abutting surface of the spring bolt, so that the spring bolt moves and is separated from the fixed push rod. Meanwhile, the positioning apparatus pushes the fixed push rod, so that the door lock assembly is in an unlocked state. The present application also discloses a box device.

Description

Door lock components and box equipment

This application is based on Chinese patent application with application number 202211317948.0 and application date October 26, 2022, Chinese patent application with application number 202211317919.4 and application date October 26, 2022, and Chinese patent application with application number 202211317888.2 and application date October 26, 2022, and claims the priority of the Chinese patent application. The entire contents of the Chinese patent application are hereby introduced into this application as a reference.

Technical Field

The present application relates to the technical field of storage equipment, for example, to a door lock assembly and a box device.

Background technique

Door locks are locks installed on the door. In daily life, door locks can be installed on the doors of furniture such as refrigerators, wardrobes, and cabinets to lock the door. For example, if the refrigerator at home has been used for too long, the seal on the refrigerator will be worn or deformed, which will cause the refrigerator door to be unable to close tightly. The refrigerator door cannot be closed tightly, which will lead to poor refrigeration effect, power consumption, and frost in the refrigerator. At the same time, if there are children in the user's home, if the refrigerator door is not locked, the children can easily open the refrigerator and eat the over-cold food.

In order to prevent the refrigerator door from being opened by mistake, a door lock is provided on the refrigerator door body to lock the door body to the refrigerator body.

In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

For the above-mentioned refrigerator with a door lock on the secondary door, when the user opens the refrigerator door, it is necessary to unlock it first and then open the door body. If the user has other items in his hand at this time, it is very inconvenient to use, which reduces the user's experience.

It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Summary of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key/critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The disclosed embodiments provide a door lock assembly and a box device, which can drive a push rod to move and squeeze a lock tongue by turning a handle through a connecting rod assembly, so that the door lock assembly is in an unlocked state, thereby solving the problem of inconvenience in unlocking for users and improving the user experience.

The disclosed embodiment provides a door lock assembly including a driving push rod, a lock tongue, a fixed push rod and a positioning device. The driving push rod is connected to the handle through a connecting rod assembly. The lock tongue includes a first abutting surface that can abut against the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface. The fixed push rod includes a first plug-in portion inserted in the driving push rod, and a first abutting portion that can abut against the second abutting surface of the lock tongue. The positioning device includes a first elastic element for pushing the fixed push rod. Among them, the positioning device is arranged on both sides of the fixed push rod opposite to the driving push rod. When the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod. The handle can drive the driving push rod to move through the connecting rod assembly and squeeze the first abutting surface of the lock tongue, so that the lock tongue moves and disengages from the fixed push rod. At the same time, the positioning device pushes the fixed push rod to put the door lock assembly in an unlocked state.

In some embodiments, the handle includes a cam abutting against the connecting rod assembly. When the handle is rotated, the connecting rod assembly can be driven to move by the cam.

In some embodiments, the connecting rod assembly includes a main connecting rod and a secondary connecting rod. The main connecting rod includes a first end that abuts against a cam of the handle, and a second end that is arranged opposite to the first end. One end of the secondary connecting rod is rotatably connected to the second end of the main connecting rod, and the other end is rotatably connected to the driving push rod. Wherein, the first end of the main connecting rod is arranged at the lower part of the second end.

In some embodiments, the angle between the axis of the secondary connecting rod and the driving push rod is a first angle θ. When the door lock assembly is in a locked state, the first angle θ is less than or equal to 45°.

In some embodiments, the main connecting rod is arranged vertically, and the driving push rod is arranged horizontally. When the door lock assembly is in a locked state, the handle rotates, and the main connecting rod is driven to move vertically upward through the cam, and then the driving push rod is driven to move horizontally through the secondary connecting rod to squeeze the lock tongue.

In some embodiments, the door lock assembly further comprises a second elastic element, one end of which abuts against the driving push rod, and the other end of which abuts against the fixed push rod.

In some embodiments, two groups of locking tongues are symmetrically arranged in the upper and lower parts.

In some embodiments, the lock tongue is further provided with a third elastic element, and when the driving push rod is disengaged from the lock tongue, the third elastic element can drive the lock tongue to reset.

The disclosed embodiment also provides a box device including a box, and a door body arranged at the opening of the box, and also includes the above-mentioned door lock assembly.

In some embodiments, the positioning device and the locking tongue are arranged in the box body. The driving push rod and the connecting rod assembly are arranged in the door body.

In some embodiments, the door body is provided with a first mounting groove for mounting the main connecting rod, and the first mounting groove is provided with a guide structure for guiding the movement of the main connecting rod.

In some embodiments, the door body is further provided with a second mounting groove, and the driving push rod is slidably disposed in the second mounting groove.

The disclosed embodiment provides a door lock assembly, including a driving push rod, a lock tongue, a fixed push rod, a sealing plug and a vacuum device. The driving push rod is connected to the handle through a connecting rod assembly, and a vacuum chamber is arranged inside; the lock tongue includes a first abutting surface that can abut the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface; the fixed push rod includes a first plug-in portion inserted in the vacuum chamber, and the first plug-in portion is a hollow structure provided with a hole plug; the sealing plug is arranged between the first plug-in portion and the driving push rod, and is used to seal the vacuum chamber; the vacuum device includes an exhaust pipe inserted in the hole plug. Among them, the vacuum device can be connected to the vacuum chamber through the first plug-in portion, when the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod, the handle can drive the driving push rod to move through the connecting rod assembly and squeeze the first abutting surface of the lock tongue, so that the lock tongue moves and separates from the fixed push rod, and at the same time, the vacuum device evacuates the vacuum chamber, so that the driving push rod can drive the fixed push rod to move, thereby putting the door lock assembly in an unlocked state.

In some embodiments, the driving push rod further includes a pressure relief valve, which is disposed on a wall surface of the driving push rod.

In some embodiments, the vacuum device further comprises a fixed switch, which is arranged outside the vacuum tube, and a pressure sensor is arranged on the end surface abutting against the fixed push rod.

In some embodiments, the connecting rod assembly includes a main connecting rod and a secondary connecting rod. The main connecting rod includes a first end abutting against a cam of a handle, and a second end arranged opposite to the first end; one end of the secondary connecting rod is rotatably connected to the second end of the main connecting rod, and the other end is rotatably connected to the driving push rod. The first end of the main connecting rod is arranged below the second end.

In some embodiments, the main connecting rod is arranged vertically, and the driving push rod is arranged horizontally. When the handle is turned, the main connecting rod is driven to move vertically upward through the cam, and then the driving push rod is driven to move horizontally through the secondary connecting rod to squeeze the lock tongue.

In some embodiments, the door lock assembly further comprises a second elastic element, one end of which abuts against the driving push rod and the other end of which abuts against the fixed push rod.

The disclosed embodiment also provides a box device including a box, a main door arranged at the opening of the box, and a secondary door arranged outside the main door, and also includes the above-mentioned door lock assembly.

In some embodiments, the vacuum device and the locking tongue are disposed in the primary door; and the driving push rod and the connecting rod assembly are disposed in the secondary door.

In some embodiments, the sub-door is provided with a first mounting groove for mounting the main connecting rod; and the first mounting groove is provided with a guide structure for guiding the movement of the main connecting rod.

In some embodiments, the sub-door is further provided with a second mounting groove, and the driving push rod is slidably disposed in the second mounting groove; and the second mounting groove is disposed perpendicular to the first mounting groove.

The disclosed embodiment provides a door lock assembly including a driving push rod, a lock tongue, a fixed push rod and a magnetic device. The driving push rod is connected to the handle through a connecting rod assembly; the lock tongue includes a first abutting surface that can abut against the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface; the fixed push rod includes a first plug-in portion inserted in the driving push rod, and a first abutting portion that can abut against the second abutting surface of the lock tongue, wherein the fixed push rod has magnetism; the magnetic device includes a magnetic element that repels the fixed push rod. The magnetic device and the driving push rod are arranged on both sides of the fixed push rod opposite to each other. When the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod. The handle can drive the driving push rod to move through the connecting rod assembly and squeeze the first abutting surface of the lock tongue, so that the lock tongue moves and disengages from the fixed push rod. At the same time, the magnetic device pushes the fixed push rod to put the door lock assembly in an unlocked state.

In some embodiments, the door lock assembly further comprises a detection device which is disposed on the lock tongue and can be used to detect whether the fixed push rod is engaged with or disengaged from the lock tongue.

In some embodiments, the end surfaces of the magnetic element and the fixed push rod corresponding to each other are provided with sensing devices, which can be used to detect whether the fixed push rod is in contact with or out of contact with the magnetic element.

In some embodiments, the connecting rod assembly includes a main connecting rod and a secondary connecting rod. The main connecting rod includes a first end abutting against a cam of a handle and a second end arranged opposite to the first end; the secondary connecting rod has one end rotatably connected to the second end of the main connecting rod and the other end rotatably connected to the driving push rod. The first end of the main connecting rod is arranged below the second end.

The disclosed embodiment also provides a box device, including a box, a main door arranged at the opening of the box, and a secondary door arranged outside the main door, and also includes the above-mentioned door lock assembly.

In some embodiments, the magnetic device and the lock tongue are disposed in the main door; the driving push rod and the connecting rod assembly are disposed in the secondary door.

In some embodiments, the secondary door is provided with a first mounting groove for mounting the main connecting rod; the first mounting groove is provided with a guide structure for guiding the movement of the main connecting rod.

In some embodiments, the secondary door is further provided with a second mounting groove, and the driving push rod is slidably disposed in the second mounting groove; the second mounting groove is disposed perpendicular to the first mounting groove.

The door lock assembly and box device provided by the embodiments of the present disclosure can achieve the following technical effects:

The disclosed embodiment provides a door lock assembly including a driving push rod, a lock tongue, a fixed push rod and a positioning device. The driving push rod is connected to the handle through a connecting rod assembly. The lock tongue includes a first abutting surface that can abut against the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface. The fixed push rod includes a first plug-in portion inserted in the driving push rod, and a first abutting portion that can abut against the second abutting surface of the lock tongue. The positioning device includes a first elastic element abutting against the fixed push rod. When the user turns the handle, the handle can drive the driving push rod to move and squeeze the lock tongue through the connecting rod assembly, and the lock tongue is separated from the fixed push rod, so that the door lock assembly is in an unlocked state. In this way, it is more convenient for the user to unlock the door lock assembly, thereby improving the user experience.

The disclosed embodiment provides a door lock assembly, including a driving push rod, a lock tongue, a fixed push rod, a sealing plug and a vacuum device. The driving push rod is connected to the handle through a connecting rod assembly, and a vacuum chamber is arranged inside; the lock tongue includes a first abutting surface that can abut the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface; the fixed push rod includes a first plug-in portion inserted in the vacuum chamber, and the first plug-in portion is a hollow structure provided with a hole plug; the sealing plug is arranged between the first plug-in portion and the driving push rod, and is used to seal the vacuum chamber; the vacuum device includes an exhaust pipe inserted in the hole plug. Among them, the vacuum device can be connected to the vacuum chamber through the first plug-in portion, when the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod, the handle can drive the driving push rod to move through the connecting rod assembly and squeeze the first abutting surface of the lock tongue, so that the lock tongue moves and separates from the fixed push rod, and at the same time, the vacuum device evacuates the vacuum chamber, so that the driving push rod can drive the fixed push rod to move, thereby putting the door lock assembly in an unlocked state. In this way, it is more convenient for users to unlock the door lock assembly, and the user experience is improved.

The disclosed embodiment provides a door lock assembly including a driving push rod, a lock tongue, a fixed push rod and a magnetic device. The driving push rod is connected to the handle through a connecting rod assembly; the lock tongue includes a first abutting surface that can abut against the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface; the fixed push rod includes a first plug-in portion inserted in the driving push rod, and a first abutting portion that can abut against the second abutting surface of the lock tongue, wherein the fixed push rod is magnetic; the magnetic device includes a magnetic element that repels the fixed push rod. When the user turns the handle, the handle can drive the driving push rod to move and squeeze the lock tongue through the connecting rod assembly, and the lock tongue is separated from the fixed push rod, so that the door lock assembly is in an unlocked state. In this way, it is more convenient for the user to unlock the door lock assembly, which improves the user experience.

The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

FIG1 is an exploded view of a door lock assembly provided by an embodiment of the present disclosure;

FIG2 is a schematic diagram of the locked state of the door lock assembly provided by an embodiment of the present disclosure;

FIG3 is a schematic diagram of the unlocked state of the door lock assembly provided by an embodiment of the present disclosure;

FIG4 is a schematic structural diagram of a fixed push rod provided in an embodiment of the present disclosure;

FIG5 is a schematic structural diagram of a driving push rod provided in an embodiment of the present disclosure;

FIG6 is a schematic structural diagram of a positioning device provided by an embodiment of the present disclosure;

FIG7 is a schematic structural diagram of a lock tongue provided in an embodiment of the present disclosure;

FIG8 is a schematic structural diagram of a box device provided by an embodiment of the present disclosure;

FIG9 is a schematic structural diagram of another box device provided by an embodiment of the present disclosure;

FIG10 is an exploded view of another door lock assembly provided by an embodiment of the present disclosure;

FIG11 is a schematic diagram of the locked state of the door lock assembly provided by an embodiment of the present disclosure;

FIG12 is a schematic diagram of the unlocked state of the door lock assembly provided by an embodiment of the present disclosure;

FIG13 is a schematic structural diagram of a fixed push rod provided in an embodiment of the present disclosure;

FIG14 is a schematic structural diagram of a driving push rod provided in an embodiment of the present disclosure;

FIG15 is a schematic diagram of a fixed push rod inserted into a driving push rod provided in an embodiment of the present disclosure;

FIG16 is a schematic structural diagram of a magnetic device provided in an embodiment of the present disclosure;

FIG17 is a schematic structural diagram of another box device provided in an embodiment of the present disclosure;

FIG18 is a schematic structural diagram of another box device provided by an embodiment of the present disclosure;

FIG19 is an exploded view of another door lock assembly provided by an embodiment of the present disclosure;

FIG20 is a schematic diagram of the locked state of the door lock assembly provided in an embodiment of the present disclosure;

FIG21 is a schematic diagram of the unlocked state of the door lock assembly provided by an embodiment of the present disclosure;

FIG22 is a schematic structural diagram of a magnetic device provided in an embodiment of the present disclosure;

FIG23 is a schematic structural diagram of another box device provided by an embodiment of the present disclosure;

FIG. 24 is a schematic diagram of the structure of another box device provided in an embodiment of the present disclosure.

Reference numerals:
1: driving push rod; 101: sliding groove; 101A: vacuum chamber; 102A: pressure relief valve; 2: fixed push rod; 201: first plug-in portion; 202: first abutment portion; 3: locking tongue; 301: second abutment portion; 3011: first abutment surface; 3012: second abutment surface; 302: second plug-in portion; 303: third elastic element; 304: sliding sleeve; 305: stopper; 4: connecting rod assembly; 401: main connecting rod; 402: secondary connecting rod; 5: positioning device; 501: first elastic Component; 502: positioning end; 503: fixed end; 5A: vacuum device; 501A: exhaust pipe; 502A: fixed switch; 5B: magnetic device; 501B: base; 502B: iron core; 503B: conductive winding; 504B: third elastic element; 505B: magnetic element; 6: handle; 7: second elastic element; 8: box body; 9: door body; 8A/8B: main door; 9A/9B: auxiliary door; 901: first installation groove; 9011: guide structure; 902: second installation groove.

Detailed ways

In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances to describe the embodiments of the present disclosure herein. In addition, the terms "including" and "having" and any variations thereof are intended to be used in the embodiments of the present disclosure. To cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure may be understood according to specific circumstances.

In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

Unless otherwise stated, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B indicates: A or B.

The term "and/or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and/or B means: A or B, or, A and B.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in FIGS. 1 to 7 , the embodiment of the present disclosure provides a door lock assembly including a driving push rod 1, a lock tongue 3, a fixed push rod 2 and a positioning device 5. The driving push rod 1 is connected to the handle 6 through a connecting rod assembly 4, and the driving push rod 1 is provided with a sliding groove 101, as shown in FIG. 5 . The lock tongue 3 includes a first abutting surface 3011 that can abut against the driving push rod 1, and a second abutting surface 3012 that is provided corresponding to the first abutting surface 3011. The fixed push rod 2 includes a first plug-in portion 201 inserted in the driving push rod 1, and a first abutting portion 202 that can abut against the second abutting surface 3012 of the lock tongue 3, as shown in FIG. 4 . The positioning device 5 includes a first elastic element 501 for pushing the fixed push rod 2. Among them, the positioning device 5 and the driving push rod 1 are arranged on both sides of the fixed push rod 2 opposite to each other, as shown in Figure 2. When the door lock assembly is in a locked state, the lock tongue 3 abuts against the fixed push rod 2, and the handle 6 can drive the driving push rod 1 to move and squeeze the first abutting surface 3011 of the lock tongue 3 through the connecting rod assembly 4, so that the lock tongue 3 moves and disengages from the fixed push rod 2. At the same time, the positioning device 5 pushes the fixed push rod 2 to put the door lock assembly in an unlocked state, as shown in Figure 3.

It can be understood that the first abutment surface 3011 of the lock tongue 3 is set as an inclined surface, so that when the driving push rod 1 or the fixed push rod 2 moves horizontally and squeezes the first abutment surface 3011 of the lock tongue 3, the lock tongue 3 can move vertically to make way, thereby unlocking or locking the door lock assembly.

Specifically, the first plug-in portion 201 of the fixed push rod 2 is plugged into the sliding groove 101 of the driving push rod 1, and the first plug-in portion 201 can slide back and forth in the sliding groove 101. At the same time, a limiting structure is provided in the sliding groove 101, and a limiting protrusion is provided at a position corresponding to the first plug-in portion 201 and the limiting structure. When the first plug-in portion 201 slides outward to the maximum position, the limiting structure can stop the limiting protrusion to prevent the first plug-in portion 201 from disengaging from the sliding groove 101. As shown in FIG2, when the door lock assembly is in a locked state, the driving push rod 1 is disengaged from the lock tongue 3, and the fixed push rod 2 is in a locked position and abuts against the second abutting surface 3012 of the lock tongue 3. By turning the handle 6, The connecting rod assembly 4 drives the driving push rod 1 to move horizontally in the direction of the fixed push rod 2, and squeezes the first abutting surface 3011 of the lock tongue 3, so that the lock tongue 3 moves vertically to give way and disengages from the fixed push rod 2. At this time, the first elastic element 501 of the positioning device 5 pushes the fixed push rod 2, so that the fixed push rod 2 moves horizontally in the direction of the driving push rod 1 and slides to the unlocking position, so that the door lock assembly is in the unlocking state, as shown in FIG. 3 .

When the door lock assembly is in the unlocked state, the handle 6 is pushed, and the driving push rod 1 and the fixed push rod 2 are driven to move horizontally toward the lock tongue 3 through the connecting rod assembly 4 and squeeze the first abutting surface 3011 of the lock tongue 3, so that the lock tongue 3 moves vertically to give way. When the fixed push rod 2 moves to the locked position, the lock tongue 3 falls, and the fixed push rod 2 abuts against the second abutting surface 3012 of the lock tongue 3, so that the door lock assembly is in the locked state.

As shown in Fig. 1, in some embodiments, the handle 6 includes a cam abutting against the connecting rod assembly 4. When the handle 6 rotates, the connecting rod assembly 4 can be driven to move by the cam.

Specifically, the handle 6 includes a cam and a buckle directly connected to the cam. The buckle includes a first end connected to the cam, and the first end of the buckle is provided with a rotating shaft. The user can rotate the handle 6 around the rotating shaft through the buckle, and then drive the connecting rod assembly 4 to move through the cam.

As shown in FIG. 2 , in some embodiments, the connecting rod assembly 4 includes a main connecting rod 401 and a secondary connecting rod 402. The main connecting rod 401 includes a first end abutting against the cam of the handle 6, and a second end arranged opposite to the first end. One end of the secondary connecting rod 402 is rotatably connected to the second end of the main connecting rod 401, and the other end is rotatably connected to the driving push rod 1. The first end of the main connecting rod 401 is arranged below the second end.

Specifically, the main connecting rod 401 and the driving push rod 1 are arranged perpendicular to each other, and the secondary connecting rod 402 is used to connect the main connecting rod 401 and the driving push rod 1. When the door lock assembly is in a locked state, the main connecting rod 401 and the secondary connecting rod 402 are in a locked position. The handle 6 rotates and lifts the main connecting rod 401 through the cam, and then drives the driving push rod 1 to move through the secondary connecting rod 402.

It can be understood that since the secondary connecting rod 402 is rotationally connected to the main connecting rod 401 and the driving push rod 1, when the main connecting rod 401 drives the driving push rod 1 to move through the secondary connecting rod 402, it can be ensured that the driving push rod 1 moves along a predetermined trajectory. For example, the driving push rod 1 can move in a direction perpendicular to the movement direction of the main connecting rod 401.

As shown in Fig. 2, in some embodiments, the angle between the secondary connecting rod 402 and the axis of the driving push rod 1 is a first angle θ. When the door lock assembly is in a locked state, the first angle θ is less than or equal to 45°.

Specifically, the first angle θ is less than or equal to 45°. For example, it can be 40°, 35° or 30°. Such a configuration is more conducive to the main connecting rod 401 driving the driving push rod 1 to move in a direction perpendicular to the movement direction of the main connecting rod 401.

Furthermore, when the door lock assembly is in the locked state, the first angle θ is the maximum angle state, as shown in FIG2. The handle 6 rotates and lifts the main connecting rod 401 through the cam, and then drives the driving push rod 1 to move through the secondary connecting rod 402. At this time, the door lock assembly is in the unlocked state, and the first angle θ is the minimum angle state, as shown in FIG3.

As shown in FIG2 , in some embodiments, the main connecting rod 401 is vertically arranged, and the driving push rod 1 is horizontally arranged. When the door lock assembly is in a locked state, the handle 6 rotates, and the main connecting rod 401 is driven to move vertically upward through the cam, and then the driving push rod 1 is driven to move horizontally through the secondary connecting rod 402 to squeeze the lock tongue 3.

Specifically, when the door lock is in the locked state, the driving push rod 1 is in the unlocked position, and the main connecting rod 401 abuts against the cam of the handle 6 and is at the lowest point. When the handle 6 is rotated, the cam lifts the main connecting rod 401 and drives the driving push rod 1 to move horizontally toward the fixed push rod 2 through the secondary connecting rod 402. The driving push rod 1 squeezes the first abutting surface 3011 of the lock tongue 3, so that the lock tongue 3 moves vertically to give way.

As shown in FIG. 1 , in some embodiments, the door lock assembly further comprises a second elastic element 7 . One end of the second elastic element 7 abuts against the driving push rod 1 , and the other end abuts against the fixed push rod 2 .

Specifically, when the door lock assembly is in the unlocked state, the handle 6 is pushed, and the driving push rod 1 and the fixed push rod 2 are driven to move horizontally toward the lock tongue 3 through the connecting rod assembly 4 and squeeze the first abutting surface 3011 of the lock tongue 3, so that the lock tongue 3 moves vertically to give way. When the fixed push rod 2 moves to the locked position, the second elastic element 7 pushes the fixed push rod 2, so that the first plug-in portion 201 slides outward in the sliding groove 101 to the maximum position. At the same time, the lock tongue 3 is reset, and the fixed push rod 2 abuts against the second abutting surface 3012 of the lock tongue 3, so that the door lock assembly is in the locked state.

In some embodiments, two groups of locking tongues 3 are symmetrically arranged in the upper and lower parts.

It is understandable that symmetrically arranging two groups of lock tongues 3 is beneficial to the stability of the door lock assembly when it is in a locked state. At the same time, such an arrangement can disperse the force of a single lock tongue 3, which is beneficial to improving the durability of the door lock assembly.

As shown in FIG. 7 , in some embodiments, the lock tongue 3 is further provided with a third elastic element 303 . When the driving push rod 1 is separated from the lock tongue 3 , the third elastic element 303 can drive the lock tongue 3 to reset.

Specifically, when the fixed push rod 2 moves to the locked position, the second elastic element 7 pushes the fixed push rod 2 to make the first plug portion 201 slide outward to the maximum position in the sliding groove 101. At the same time, the third elastic element 303 pushes the lock tongue 3 to return to its original position, and the fixed push rod 2 abuts against the second abutting surface 3012 of the lock tongue 3, so that the door lock assembly is in a locked state.

As shown in FIG. 7 , in some embodiments, the locking tongue 3 includes a second plug-in portion 302 and a second abutting portion 301 corresponding to the second plug-in portion 302 . The second abutting portion 301 includes a first abutting surface 3011 and a second abutting surface 3012 .

Specifically, the second plug-in portion 302 of the lock tongue 3 is inserted into the sliding sleeve 304, and the lock tongue 3 can slide in the sliding sleeve 304. A stopper 305 is provided at one end of the second plug-in portion 302 opposite to the second abutting portion 301, and the stopper 305 can abut against the sliding sleeve 304 to prevent the lock tongue 3 from being separated from the sliding sleeve 304. At the same time, the first end of the third elastic element 303 abuts against the second abutting portion 301, and the second end abuts against the sliding sleeve 304.

As shown in FIG6 , in some embodiments, the positioning device 5 includes a positioning end 502 and a fixed end 503 opposite to the positioning end 502 . The first end of the first elastic element 501 is connected to the fixed end 503 , and the second end is connected to the positioning end 502 .

Specifically, the positioning end 502 of the positioning device 5 can abut against the first abutting portion 202 of the fixed push rod 2. When the driving push rod 1 moves and presses the lock tongue 3 to move, the fixed push rod 2 is separated from the second abutting surface 3012 of the lock tongue 3. At this time, the first elastic element 501 presses the positioning end 502 of the positioning device 5, so that the positioning end 502 pushes the fixed push rod 2 to move, thereby putting the door lock assembly in an unlocked state.

As shown in FIG. 8 and FIG. 9 , the embodiment of the present disclosure further provides a box device including a box 8 and a door 9 disposed at the opening of the box 8 , and also includes the above-mentioned door lock assembly.

Specifically, the cabinet equipment may be a refrigerator, a cabinet, etc.

As shown in FIG8 , in some embodiments, the positioning device 5 and the locking tongue 3 are disposed in a box body 8 . The driving push rod 1 and the connecting rod assembly 4 are disposed in a door body 9 .

Specifically, a fixing groove for accommodating the locking tongue 3 is provided in the box body 8, and the locking tongue 3 is slidably arranged in the fixing groove. A shaft sleeve fixing structure is provided in the fixing groove, and the sliding shaft sleeve 304 is fixedly arranged in the shaft sleeve fixing structure.

As shown in FIG. 9 , in some embodiments, the door body 9 is provided with a first mounting groove 901 for mounting the main connecting rod 401 , and the first mounting groove 901 is provided with a guide structure 9011 for guiding the movement of the main connecting rod 401 .

Specifically, the guide structure 9011 is a convex block, and the guide structure 9011 fits the main connecting rod 401 to make the main connecting rod 401 move along a predetermined track. When the handle 6 drives the main connecting rod 401 to move vertically in the first installation groove 901, the guide structure 9011 can prevent the main connecting rod 401 from moving horizontally.

In some embodiments, the door body 9 is further provided with a second mounting groove 902 , and the driving push rod 1 is slidably disposed in the second mounting groove 902 .

Specifically, the second mounting groove 902 and the first mounting groove 901 are arranged perpendicular to each other, so that the movement direction of the driving push rod 1 and the movement direction of the main connecting rod 401 are perpendicular to each other.

As shown in Fig. 7, Fig. 10 to Fig. 18, the embodiment of the present disclosure provides a door lock assembly, including a driving push rod 1, a lock tongue 3, a fixed push rod 2, a sealing plug 204 and a vacuum device 5A. The driving push rod 1 is connected to the handle 6 through the connecting rod assembly 4, and a vacuum chamber 101A is arranged inside; the lock tongue 3 includes a first abutting surface 3011 that can abut the driving push rod 1, and a second abutting surface 3012 corresponding to the first abutting surface 3011; the fixed push rod 2 includes a first plug-in portion 201 inserted in the vacuum chamber 101A, and the first plug-in portion 201 is a hollow structure provided with a hole plug 203; the sealing plug 204 is arranged between the first plug-in portion 201 and the driving push rod 1, and is used to seal the vacuum chamber 101A; the vacuum device 5A includes an exhaust pipe 501A inserted in the hole plug 203. Among them, the vacuum device 5A can be connected with the vacuum chamber 101A through the first plug-in part 201. When the door lock assembly is in a locked state, the lock tongue 3 abuts against the fixed push rod 2. The handle 6 can drive the driving push rod 1 to move and squeeze the first abutting surface 3011 of the lock tongue 3 through the connecting rod assembly 4, so that the lock tongue 3 moves and disengages from the fixed push rod 2. At the same time, the vacuum device 5A evacuates the vacuum chamber 101A so that the driving push rod 1 can drive the fixed push rod 2 to move, thereby putting the door lock assembly in an unlocked state.

It is understandable that the first abutting surface 3011 of the lock tongue 3 is set as an inclined surface, so that when the driving push rod 1 or the fixed push rod 2 moves horizontally and squeezes the first abutting surface 3011 of the lock tongue 3, the lock tongue 3 can move vertically to give way, thereby unlocking or locking the door lock assembly. When the first plug-in portion 201 of the fixed push rod 2 is plugged into the vacuum chamber 101A of the driving push rod 1, it can cooperate with the sealing plug 204 to seal the vacuum chamber 101A. The exhaust pipe 501A is inserted into the hole plug 203, and the air in the vacuum chamber 101A can be extracted through the first plug-in portion 201. At this time, the air pressure in the vacuum chamber 101A can drive the fixed push rod 2 to drive the driving push rod 1.

Specifically, the first plug-in portion 201 of the fixed push rod 2 is plugged into the vacuum chamber 101A of the driving push rod 1, and the first plug-in portion 201 can slide back and forth in the vacuum chamber 101A. At the same time, a limiting structure is provided in the vacuum chamber 101A, and a limiting protrusion is provided at the position corresponding to the first plug-in portion 201 and the limiting structure. When the first plug-in portion 201 slides outward to the maximum position, the limiting structure can stop the limiting protrusion to prevent the first plug-in portion 201 from being separated from the vacuum chamber 101A. When the door lock assembly is in a locked state, the driving push rod 1 is separated from the lock tongue 3, and the fixed push rod 2 is in a locked position and abuts against the second abutting surface 3012 of the lock tongue 3. By turning the handle 6, the driving push rod 1 can be driven to move horizontally in the direction of the fixed push rod 2 through the connecting rod assembly 4, and the first abutting surface 3011 of the lock tongue 3 is squeezed, so that the lock tongue 3 moves vertically to give way and is separated from the fixed push rod 2. At this time, the vacuum device 5A extracts the air in the vacuum chamber 101A to move the fixed push rod 2 toward the driving push rod 1 to the unlocking position, thereby putting the door lock assembly in the unlocking state.

In some embodiments, the driving push rod 1 further includes a pressure relief valve 102A. The pressure relief valve 102A is disposed on a wall surface of the driving push rod 1 .

Specifically, the lock tongue 3 is also provided with a detection device. When the detection device detects that the fixed push rod 2 is separated from the lock tongue 3, the pressure relief valve 102A can be controlled to open to restore the vacuum chamber 101A to normal pressure, so as to avoid the fixed push rod 2 being unable to engage when the door lock assembly is locked. On the lock tongue 3. Preferably, the detection device is a photosensor.

In some embodiments, the vacuum device 5A further comprises a fixed switch 502A. The fixed switch 502A is arranged outside the vacuum tube, and a pressure sensor is arranged on the end surface abutting against the fixed push rod 2.

Specifically, the first distance L1 between the fixed switch 502A and the tube opening of the exhaust pipe 501A is greater than or equal to 0.5 cm, for example, it can be 0.5 cm, 1 cm or 1.5 cm. This arrangement can ensure that after the exhaust pipe 501A is inserted into the hole plug 203, the fixed push rod 2 is abutted against the fixed switch 502A. When the pressure sensor detects that the fixed push rod 2 is abutted against the fixed switch 502A, the vacuum device 5A can be controlled to extract the air in the vacuum chamber 101A.

As shown in FIG. 10 to FIG. 12 , in this embodiment, the connection relationship between the handle 6 , the connecting rod assembly 4 and the cam is similar to that in the above embodiment, and will not be described again here.

Specifically, when the door lock assembly is in the unlocked state, the handle 6 is pushed, and the driving push rod 1 and the fixed push rod 2 are driven to move horizontally toward the lock tongue 3 through the connecting rod assembly 4 and squeeze the first abutting surface 3011 of the lock tongue 3, so that the lock tongue 3 moves vertically to give way. When the fixed push rod 2 moves to the locked position, the second elastic element 7 pushes the fixed push rod 2 so that the first plug-in portion 201 slides outward in the vacuum chamber 101A to the maximum position. At the same time, the lock tongue 3 is reset, and the fixed push rod 2 abuts against the second abutting surface 3012 of the lock tongue 3, so that the door lock assembly is in the locked state.

As shown in FIG7 , specifically, when the fixed push rod 2 moves to the locked position, the third elastic element 303 pushes the fixed push rod 2 to slide the first plug-in portion 201 outward to the maximum position in the vacuum chamber 101A. At the same time, the third elastic element 303 pushes the lock tongue 3 to reset, and the fixed push rod 2 abuts against the second abutting surface 3012 of the lock tongue 3, so that the door lock assembly is in a locked state.

As shown in FIGS. 17 and 18 , an embodiment of the present disclosure further provides a box device including a box, a main door 8A disposed at the opening of the box, and a sub-door 9A disposed outside the main door 8A, and also includes the above-mentioned door lock assembly.

Specifically, the cabinet device is a door-in-door refrigerator, and the door lock assembly can lock the auxiliary door 9A to the main door 8A. When the auxiliary door 9A is locked to the main door 8A, the main door 8A and the auxiliary door 9A can be rotated synchronously to open or close the opening of the cabinet. When the auxiliary door 9A is unlocked from the main door 8A, the auxiliary door 9A can be rotated alone to open or close the main door 8A.

In some embodiments, the vacuum device 5A and the locking tongue 3 are disposed in the main door 8A; and the driving push rod 1 and the connecting rod assembly 4 are disposed in the secondary door 9A.

Specifically, a fixing groove for accommodating the lock tongue 3 is provided in the main door 8A, and the lock tongue 3 is slidably provided in the fixing groove. A shaft sleeve fixing structure is provided in the fixing groove, and the sliding shaft sleeve 304 is fixedly provided in the shaft sleeve fixing structure.

In some embodiments, the sub-door 9A is provided with a first mounting groove 901 for mounting the main connecting rod 401 ; and the first mounting groove 901 is provided with a guide structure 9011 for guiding the movement of the main connecting rod 401 .

In some embodiments, the sub-door 9A is further provided with a second mounting groove 902 , and the driving push rod 1 is slidably disposed in the second mounting groove 902 ; and the second mounting groove 902 is disposed perpendicular to the first mounting groove 901 .

As shown in FIGS. 4, 5, 7 and 19 to 24, the embodiment of the present disclosure provides a door lock assembly including a driving push rod 1, a lock tongue 3, Fixed push rod 2 and magnetic device 5. The driving push rod 1 is connected to the handle 6 through the connecting rod assembly 4; the lock tongue 3 includes a first abutting surface 3011 that can abut against the driving push rod 1, and a second abutting surface 3012 corresponding to the first abutting surface 3011; the fixed push rod 2 includes a first plug-in portion 201 inserted in the driving push rod 1, and a first abutting portion 202 that can abut against the second abutting surface 3012 of the lock tongue 3, wherein the fixed push rod 2 has magnetism; the magnetic device 5 includes a magnetic element 505B that repels the fixed push rod 2. The magnetic device 5 is arranged on both sides of the fixed push rod 2 opposite to the driving push rod 1. When the door lock assembly is in a locked state, the lock tongue 3 abuts against the fixed push rod 2. The handle 6 can drive the driving push rod 1 to move and squeeze the first abutting surface 3011 of the lock tongue 3 through the connecting rod assembly 4, so that the lock tongue 3 moves and disengages from the fixed push rod 2. At the same time, the magnetic device 5 pushes the fixed push rod 2 to put the door lock assembly in an unlocked state.

Specifically, the magnetic element 505B is an electromagnet. When the magnetic element 505B is energized, it can generate magnetism with the same magnetic pole as the fixed push rod 2, so that the magnetic element 505B and the fixed push rod 2 repel each other. The first plug-in portion 201 of the fixed push rod 2 is plugged into the sliding groove 101 of the driving push rod 1, and the first plug-in portion 201 can slide back and forth in the sliding groove 101. At the same time, a limiting structure is provided in the sliding groove 101, and a limiting protrusion is provided at the position corresponding to the limiting structure of the first plug-in portion 201. When the first plug-in portion 201 slides outward to the maximum position, the limiting structure can stop the limiting protrusion to prevent the first plug-in portion 201 from being separated from the sliding groove 101. When the door lock assembly is in a locked state, the driving push rod 1 is separated from the lock tongue 3, and the fixed push rod 2 is in a locked position and abuts against the second abutting surface 3012 of the lock tongue 3. By turning the handle 6, the driving push rod 1 can be driven to move horizontally toward the fixed push rod 2 through the connecting rod assembly 4, and the first abutting surface 3011 of the lock tongue 3 can be pressed, so that the lock tongue 3 can move vertically to give way and be separated from the fixed push rod 2. At this time, the magnetic element 505B generates a magnetic force that repels the fixed push rod 2, so that the fixed push rod 2 moves toward the driving push rod 1 to the unlocking position, thereby putting the door lock assembly in the unlocking state.

In some embodiments, the door lock assembly further comprises a detection device which is disposed on the lock tongue 3 and can be used to detect whether the fixed push rod 2 is engaged with or disengaged from the lock tongue 3 .

Specifically, the detection device is a photosensitive sensor. When the detection device detects that the fixed push rod 2 is disengaged from the lock tongue 3, the magnetic device 5 can be controlled to be powered off to demagnetize the magnetic element 505B to prevent the fixed push rod 2 from being unable to engage with the lock tongue 3 when the door lock assembly is locked.

In some embodiments, the end surfaces of the magnetic element 505B corresponding to the fixed push rod 2 are provided with sensing devices, which can be used to detect whether the fixed push rod 2 is in contact with or separated from the magnetic element 505B.

As shown in FIG22 , specifically, the magnetic device 5 includes a base 501B, an iron core 502B, a conductive winding 503B, a third elastic element 504B and a magnetic element 505B. The magnetic element 505B includes an abutting end surface that can abut against the fixed push rod 2, and the induction device is arranged on the abutting end surface. The iron core 502B is fixedly arranged on the base 501B; the third elastic element 504B is sleeved on the outside of the iron core 502B, and is used to connect the magnetic element 505B and the base 501B; the conductive winding 503B is sleeved on the outside of the third elastic element 504B.

When the door lock assembly is in the locked state, the fixed push rod 2 abuts against the magnetic element 505B. When the sensing device detects that the fixed push rod 2 abuts against the magnetic element 505B, the magnetic device 5 can be controlled to be energized so that the magnetic element 505B generates a contact with the fixed push rod 2. Mutually repelling magnetic forces.

As shown in Figures 19 to 21, in this embodiment, the connection relationship between the handle 6, the connecting rod assembly 4 and the cam is similar to that in the above embodiment, and will not be repeated here.

As shown in Figures 23 to 24, the embodiment of the present disclosure also provides a box device, including a box, a main door 8B arranged at the opening of the box, and a sub-door 9B arranged outside the main door 8B, and also includes the above-mentioned door lock assembly.

Specifically, the cabinet device is a door-in-door refrigerator, and the door lock assembly can lock the auxiliary door 9B to the main door 8B. When the auxiliary door 9B is locked to the main door 8B, the main door 8B and the auxiliary door 9B can be rotated synchronously to open or close the opening of the cabinet. When the auxiliary door 9B is unlocked from the main door 8B, the auxiliary door 9B can be rotated alone to open or close the main door 8B.

In some embodiments, the magnetic device 5 and the lock tongue 3 are disposed in the main door 8B; the driving push rod 1 and the connecting rod assembly 4 are disposed in the sub-door 9B.

Specifically, a fixing groove for accommodating the lock tongue 3 is provided in the main door 8B, and the lock tongue 3 is slidably provided in the fixing groove. A shaft sleeve fixing structure is provided in the fixing groove, and the sliding shaft sleeve 304 is fixedly provided in the shaft sleeve fixing structure.

In some embodiments, the sub-door 9B is provided with a first mounting groove 901 for mounting the main connecting rod 401 ; the first mounting groove 901 is provided with a guide structure 9011 for guiding the movement of the main connecting rod 401 .

In some embodiments, the sub-door 9B is further provided with a second mounting groove 902 , and the driving push rod 1 is slidably disposed in the second mounting groove 902 ; the second mounting groove 902 is disposed perpendicular to the first mounting groove 901 .

The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

A door lock assembly, characterized by comprising:

A driving push rod connected to the handle through a connecting rod assembly;

The locking tongue comprises a first abutting surface capable of abutting against the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface;

A fixed push rod, comprising a first plug-in portion inserted into the driving push rod, and a first abutment portion capable of abutting against the second abutment surface of the locking tongue; and

The positioning device comprises a first elastic element for pushing the fixed push rod,

In which, the positioning device and the driving push rod are arranged on both sides of the fixed push rod opposite to each other. When the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod. The handle can drive the driving push rod to move and squeeze the first abutment surface of the lock tongue through the connecting rod assembly to make the lock tongue move and disengage from the fixed push rod. At the same time, the positioning device pushes the fixed push rod to put the door lock assembly in an unlocked state.
The door lock assembly according to claim 1, wherein the handle includes a cam abutting against the connecting rod assembly,

When the handle is rotated, the connecting rod assembly can be driven to move by the cam.
The door lock assembly according to claim 2, characterized in that the connecting rod assembly comprises:

a main connecting rod, comprising a first end abutting against the cam of the handle, and a second end disposed opposite to the first end; and

A secondary connecting rod, one end of which is rotatably connected to the second end of the main connecting rod, and the other end of which is rotatably connected to the driving push rod.

Wherein, the first end of the main connecting rod is arranged at the lower part of the second end.
The door lock assembly according to claim 3, characterized in that the angle between the axis of the secondary connecting rod and the axis of the driving push rod is a first angle θ,

Wherein, when the door lock assembly is in a locked state, the first angle θ is less than or equal to 45°.
The door lock assembly according to claim 4, characterized in that the main connecting rod is arranged vertically, and the driving push rod is arranged horizontally.

When the door lock assembly is in a locked state, the handle rotates and drives the main connecting rod to move vertically upward through the cam, and then drives the driving push rod to move horizontally through the secondary connecting rod to squeeze the lock tongue.
The door lock assembly according to claim 1, further comprising:

The second elastic element has one end abutting against the driving push rod and the other end abutting against the fixed push rod.
The door lock assembly according to claim 1 is characterized in that the lock tongues are symmetrically arranged in two groups up and down.
The door lock assembly according to claim 7 is characterized in that the lock tongue is also provided with a third elastic element, and when the driving push rod is disengaged from the lock tongue, the third elastic element can drive the lock tongue to reset.
A box device, characterized in that it comprises a box, and a door body arranged at the opening of the box, and include:

A door lock assembly as claimed in any one of claims 1 to 8.
The box device according to claim 9, characterized in that the positioning device and the locking tongue are arranged in the box;

The driving push rod and the connecting rod assembly are arranged in the door body.
The box equipment according to claim 10 is characterized in that the door body is provided with a first mounting groove for installing a main connecting rod, and the first mounting groove is provided with a guide structure for guiding the movement of the main connecting rod.
The box equipment according to claim 10 is characterized in that the door body is also provided with a second mounting groove, and the driving push rod is slidably disposed in the second mounting groove.
A door lock assembly, characterized by comprising:

A driving push rod is connected to the handle through a connecting rod assembly and has a vacuum chamber disposed therein;

The locking tongue comprises a first abutting surface capable of abutting against the driving push rod and a second abutting surface arranged corresponding to the first abutting surface;

A fixed push rod, comprising a first plug-in portion inserted into the vacuum chamber, wherein the first plug-in portion is a hollow structure provided with a hole plug;

A sealing plug, disposed between the first plug-in portion and the driving push rod, for sealing the vacuum chamber; and

A vacuum device, comprising an air extraction pipe inserted into the hole plug;

Wherein, the vacuum device can be connected to the vacuum chamber through the first plug-in part. When the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod. The handle can drive the driving push rod to move and squeeze the first abutting surface of the lock tongue through the connecting rod assembly to make the lock tongue move and disengage from the fixed push rod. At the same time, the vacuum device evacuates the vacuum chamber so that the driving push rod can drive the fixed push rod to move, thereby putting the door lock assembly in an unlocked state.
The door lock assembly according to claim 13, characterized in that the driving push rod further comprises:

The pressure relief valve is arranged on the wall surface of the driving push rod.
The door lock assembly according to claim 13, wherein the vacuum device further comprises:

The fixed switch is arranged outside the vacuum tube, and a pressure sensor is arranged on the end surface abutting against the fixed push rod.
The door lock assembly according to claim 13, wherein the handle includes a cam abutting against the linkage assembly;

When the handle is rotated, the connecting rod assembly can be driven to move by the cam.
The door lock assembly according to claim 16, characterized in that the connecting rod assembly comprises:

a main connecting rod, comprising a first end abutting against the cam of the handle, and a second end disposed opposite to the first end; and

A secondary connecting rod, one end of which is rotatably connected to the second end of the main connecting rod, and the other end of which is rotatably connected to the driving push rod;

Wherein, the first end of the main connecting rod is arranged at the lower part of the second end.
The door lock assembly according to claim 17, characterized in that the angle between the secondary connecting rod and the axis of the driving push rod is a first angle θ;

Wherein, when the door lock assembly is in a locked state, the first angle θ is less than or equal to 45°.
The door lock assembly according to claim 18, characterized in that the main connecting rod is arranged vertically, and the driving push rod is arranged horizontally;

When the door lock assembly is in a locked state, the handle rotates and drives the main connecting rod to move vertically upward through the cam, and then drives the driving push rod to move horizontally through the secondary connecting rod to squeeze the lock tongue.
The door lock assembly according to claim 13, further comprising:

The second elastic element has one end abutting against the driving push rod and the other end abutting against the fixed push rod.
A box device, characterized in that it comprises a box, a main door arranged at an opening of the box, and a secondary door arranged outside the main door, and further comprises:

A door lock assembly as claimed in any one of claims 13 to 20.
The box device according to claim 21, characterized in that the vacuum device and the lock tongue are arranged in the main door;

The driving push rod and the connecting rod assembly are arranged in the auxiliary door.
The box device according to claim 22, characterized in that the auxiliary door is provided with a first mounting groove for mounting the main connecting rod;

The first mounting groove is provided with a guiding structure for guiding the movement of the main connecting rod.
The box device according to claim 23 is characterized in that the auxiliary door is further provided with a second mounting groove, and the driving push rod is slidably disposed in the second mounting groove;

The second mounting groove is arranged perpendicular to the first mounting groove.
A door lock assembly, characterized by comprising:

A driving push rod connected to the handle through a connecting rod assembly;

The locking tongue comprises a first abutting surface capable of abutting against the driving push rod, and a second abutting surface arranged corresponding to the first abutting surface;

A fixed push rod, comprising a first plug-in portion inserted into the driving push rod, and a first abutment portion capable of abutting against a second abutment surface of the locking tongue, wherein the fixed push rod has magnetism; and

The magnetic device comprises a magnetic element that repels the fixed push rod,

The magnetic device and the driving push rod are arranged on both sides of the fixed push rod opposite to each other. When the door lock assembly is in a locked state, the lock tongue abuts against the fixed push rod. The handle can drive the driving push rod to move and squeeze the first abutting surface of the lock tongue through the connecting rod assembly to make the lock tongue move and disengage from the fixed push rod. At the same time, the magnetic device pushes the fixed push rod to put the door lock assembly in an unlocked state.
The door lock assembly according to claim 25, further comprising:

The detection device is arranged on the lock tongue and can be used to detect whether the fixed push rod is engaged with or disengaged from the lock tongue.
The door lock assembly according to claim 25 is characterized in that the end faces of the magnetic element corresponding to the fixed push rod are provided with sensing devices, which can be used to detect the abutment or separation of the fixed push rod and the magnetic element.
The door lock assembly according to claim 25, wherein the handle includes a cam abutting against the linkage assembly,

When the handle is rotated, the connecting rod assembly can be driven to move by the cam.
The door lock assembly according to claim 28, characterized in that the connecting rod assembly comprises:

a main connecting rod, comprising a first end abutting against the cam of the handle, and a second end disposed opposite to the first end; and

A secondary connecting rod, one end of which is rotatably connected to the second end of the main connecting rod, and the other end of which is rotatably connected to the driving push rod.

Wherein, the first end of the main connecting rod is arranged at the lower part of the second end.
The door lock assembly according to claim 29, characterized in that the angle between the axis of the secondary connecting rod and the axis of the driving push rod is a first angle θ,

Wherein, when the door lock assembly is in a locked state, the first angle θ is less than or equal to 45°.
The door lock assembly according to claim 30, characterized in that the main connecting rod is arranged vertically, and the driving push rod is arranged horizontally.

When the door lock assembly is in a locked state, the handle rotates and drives the main connecting rod to move vertically upward through the cam, and then drives the driving push rod to move horizontally through the secondary connecting rod to squeeze the lock tongue.
The door lock assembly according to claim 25, further comprising:

The second elastic element has one end abutting against the driving push rod and the other end abutting against the fixed push rod.
A box device, characterized in that it comprises a box, a main door arranged at an opening of the box, and a secondary door arranged outside the main door, and further comprises:

A door lock assembly as claimed in any one of claims 25 to 32.
The box device according to claim 33, characterized in that the magnetic device and the lock tongue are arranged in the main door;

The driving push rod and the connecting rod assembly are arranged in the auxiliary door.
The box device according to claim 34, characterized in that the auxiliary door is provided with a first mounting groove for mounting the main connecting rod;

The first mounting groove is provided with a guiding structure for guiding the movement of the main connecting rod.
The box device according to claim 35 is characterized in that the auxiliary door is further provided with a second mounting groove, and the driving push rod is slidably disposed in the second mounting groove;

The second mounting groove is arranged perpendicular to the first mounting groove.