Door lock assembly and cabinet apparatus

Abstract

This application relates to the field of storage equipment technology, and discloses a door lock assembly including a drive push rod, a latch, a fixed push rod, a sealing plug, and a vacuum device. The drive push rod is connected to a handle via a linkage assembly and has a vacuum chamber inside. The latch includes a first abutment surface that abuts against the drive push rod, and a second abutment surface corresponding to the first abutment surface. The fixed push rod includes a first insertion portion inserted into the vacuum chamber, the first insertion portion being a hollow structure with a plug. The sealing plug is disposed between the first insertion portion and the drive push rod for sealing the vacuum chamber. The vacuum device includes a suction pipe inserted into the plug. This makes it easier for users to unlock the door lock assembly and improves the user experience. This application also discloses a cabinet device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of storage equipment, for example to a door lock assembly and a cabinet device. BACKGROUND

[0002] A door lock is a lock installed on a door body. In daily life, the door body of a refrigerator, a wardrobe, a cabinet and other furniture can be locked by installing a door lock.

[0003] For example, if a refrigerator is used for a long time, the sealing tape on the refrigerator will wear out or deform, which will cause the refrigerator door to be unable to close tightly. If the refrigerator door cannot be closed tightly, the refrigerator will not be able to maintain a good refrigeration effect, will consume more electricity, and frost will form inside the refrigerator. In addition, if the refrigerator door is not locked when there are children in the user's home, the children can easily open the refrigerator and eat the cold food.

[0004] At present, in order to prevent the refrigerator door from being opened by mistake, a door lock is arranged on the door body of the refrigerator to lock the door body to the cabinet.

[0005] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0006] For the above refrigerator with a door lock arranged on the secondary door, the user needs to unlock the door body before opening it. If the user has other items in his hand at this time, it will be very inconvenient to use, which reduces the user's experience.

[0007] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the present application, and therefore can include information that does not constitute prior art known to those skilled in the art. SUMMARY

[0008] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important components or to delineate the scope of protection of these embodiments, but is intended as a prelude to the detailed description below.

[0009] The embodiments of the present disclosure provide a door lock assembly and a cabinet device. The handle is rotated to drive the driving push rod to move and press the lock tongue through the connecting rod assembly, so that the door lock assembly is in an unlocked state. The problem of inconvenient unlocking for the user is solved, and the user's experience is improved.

[0010] The embodiment of the present disclosure provides a door lock assembly, which comprises a driving push rod, a lock tongue, a fixed push rod, a sealing plug and a vacuum device. The driving push rod is connected with a handle through a connecting rod assembly and internally provided with a vacuum cavity; the lock tongue comprises a first abutting surface abutting against the driving push rod and a second abutting surface corresponding to the first abutting surface; the fixed push rod comprises a first inserting part inserted into the vacuum cavity, and the first inserting part is a hollow structure provided with a hole plug; the sealing plug is arranged between the first inserting part and the driving push rod and used for sealing the vacuum cavity; and the vacuum device comprises a suction pipe inserted into the hole plug. The vacuum device is in communication with the vacuum cavity through the first inserting part. When the door lock assembly is in a locking state, the lock tongue abuts against the fixed push rod, the handle can drive the driving push rod to move and press the first abutting surface of the lock tongue through the connecting rod assembly, so that the lock tongue moves and is separated from the fixed push rod, and at the same time, the vacuum device evacuates the vacuum cavity, so that the driving push rod can drive the fixed push rod to move, and the door lock assembly is in an unlocking state.

[0011] In some embodiments, the driving push rod further comprises a pressure relief valve. The pressure relief valve is arranged on the wall surface of the driving push rod.

[0012] In some embodiments, the vacuum device further comprises a fixed switch. The fixed switch is arranged outside the suction pipe and the end surface abutting against the fixed push rod is provided with a pressure sensor.

[0013] In some embodiments, the handle comprises a cam abutting against the connecting rod assembly. When the handle rotates, the connecting rod assembly can be driven to move through the cam.

[0014] In some embodiments, the connecting rod assembly comprises a main connecting rod and a secondary connecting rod. The main connecting rod comprises a first end abutting against the cam of the handle and a second end arranged opposite to the first end; and the secondary connecting rod is rotationally connected at one end to the second end of the main connecting rod and rotationally connected at the other end to the driving push rod. The first end of the main connecting rod is arranged at the lower part of the second end.

[0015] In some embodiments, the included angle between the secondary connecting rod and the axis of the driving push rod is a first included angle θ. When the door lock assembly is in the locking state, the first included angle θ is less than or equal to 45°.

[0016] In some embodiments, the main connecting rod is vertically arranged, and the driving push rod is horizontally arranged. When the door lock assembly is in the locking 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 press the lock tongue.

[0017] In some embodiments, the above-mentioned door lock assembly further comprises a first elastic element. One end of the first elastic element abuts against the driving push rod, and the other end abuts against the fixed push rod.

[0018] The box equipment provided by the embodiments of the present disclosure comprises a box, a main door arranged at an opening of the box, and a sub-door arranged outside the main door, and further comprises the door lock assembly.

[0019] In some embodiments, the vacuum device and the lock tongue are arranged in the main door, and the driving push rod and the linkage assembly are arranged in the sub-door.

[0020] In some embodiments, the sub-door is provided with a first mounting groove for mounting the main linkage, and the first mounting groove is provided with a guide structure for guiding the movement of the main linkage.

[0021] In some embodiments, the sub-door is further provided with a second mounting groove, and the driving push rod is slidingly arranged in the second mounting groove; and the second mounting groove is arranged perpendicularly to the first mounting groove.

[0022] The door lock assembly and the box equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

[0023] The door lock assembly provided by the embodiments of the present disclosure comprises a driving push rod, a lock tongue, a fixed push rod, a sealing plug and a vacuum device. The driving push rod is connected with a handle through a linkage assembly, and is internally provided with a vacuum cavity; the lock tongue comprises a first abutting surface abutting against the driving push rod, and a second abutting surface corresponding to the first abutting surface; the fixed push rod comprises a first insertion part inserted into the vacuum cavity, and the first insertion part is a hollow structure provided with a hole plug; the sealing plug is arranged between the first insertion part and the driving push rod, and is used for sealing the vacuum cavity; and the vacuum device comprises a suction pipe inserted into the hole plug. Wherein, the vacuum device is in communication with the vacuum cavity through the first insertion part, when the door lock assembly is in a locking state, the lock tongue abuts against the fixed push rod, the handle can drive the driving push rod to move and press the first abutting surface of the lock tongue through the linkage assembly, so as to make the lock tongue move and be separated from the fixed push rod, at the same time, the vacuum device evacuates the vacuum cavity, so that the driving push rod can drive the fixed push rod to move, and then the door lock assembly is in an unlocking state. In this way, it is more convenient for the user to unlock the door lock assembly, and the user experience is improved.

[0024] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0026] Figure 1 is an explosion view of a door lock assembly provided by the embodiments of the present disclosure;

[0027] Figure 2is a schematic diagram of a locked state of a door lock assembly provided by an embodiment of the present disclosure;

[0028] Figure 3 is a schematic diagram of an unlocked state of a door lock assembly provided by an embodiment of the present disclosure;

[0029] Figure 4 is a schematic diagram of a fixed push rod provided by an embodiment of the present disclosure;

[0030] Figure 5 is a schematic diagram of a driven push rod provided by an embodiment of the present disclosure;

[0031] Figure 6 is a schematic diagram of a fixed push rod inserted into a driven push rod provided by an embodiment of the present disclosure;

[0032] Figure 7 is a schematic diagram of a magnetic device provided by an embodiment of the present disclosure;

[0033] Figure 8 is a schematic diagram of a lock bolt provided by an embodiment of the present disclosure;

[0034] Figure 9 is a schematic diagram of a cabinet device provided by an embodiment of the present disclosure;

[0035] Figure 10 is a schematic diagram of another cabinet device provided by an embodiment of the present disclosure.

[0036] Reference signs:

[0037] 1: driven push rod; 101: vacuum cavity; 102: pressure relief valve; 2: fixed push rod; 201: first plug-in part; 202: first abutting part; 203: hole plug; 204: sealing plug; 3: lock bolt; 301: second abutting part; 3011: first abutting surface; 3012: second abutting surface; 302: second plug-in part; 303: second elastic element; 304: sliding shaft sleeve; 305: stopper; 4: link assembly; 401: main link; 402: auxiliary link; 5: vacuum device; 501: suction pipe; 502: fixed switch; 6: handle; 7: first elastic element; 8: main door; 9: auxiliary door; 901: first mounting groove; 9011: guide structure; 902: second mounting groove. DETAILED DESCRIPTION

[0038] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the accompanying drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0039] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0041] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0042] Unless otherwise specified, the term "a plurality of" means two or more.

[0043] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0044] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, the three relationships.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0046] This disclosure provides a door lock assembly and a housing device. Rotating the handle drives the push rod to move and press the bolt through the linkage assembly, thereby unlocking the door lock assembly. This solves the problem of inconvenience for users in unlocking the door and improves the user experience.

[0047] This disclosure provides a door lock assembly, including a drive push rod 1, a latch 3, a fixed push rod 2, a sealing plug 204, and a vacuum device 5. The drive push rod 1 is connected to a handle 6 via a connecting rod assembly 4 and has a vacuum chamber 101 inside. The latch 3 includes a first abutment surface 3011 that abuts against the drive push rod 1, and a second abutment surface 3012 corresponding to the first abutment surface 3011. The fixed push rod 2 includes a first insertion portion 201 inserted into the vacuum chamber 101, the first insertion portion 201 being a hollow structure with a hole plug 203. The sealing plug 204 is disposed between the first insertion portion 201 and the drive push rod 1 to seal the vacuum chamber 101. The vacuum device 5 includes a suction pipe 501 inserted into the hole plug 203. The vacuum device 5 can be connected to the vacuum chamber 101 through the first plug-in part 201. When the door lock assembly is in the locked state, the latch 3 abuts against the fixed push rod 2. The handle 6 can drive the drive push rod 1 to move through the linkage assembly 4 and squeeze the first abutment surface 3011 of the latch 3 so that the latch 3 moves and disengages from the fixed push rod 2. At the same time, the vacuum device 5 evacuates the vacuum chamber 101 so that the drive push rod 1 can drive the fixed push rod 2 to move, thereby making the door lock assembly in the unlocked state.

[0048] Understandably, the first abutment surface 3011 of the latch 3 is set as an inclined surface. This allows the latch 3 to move vertically and reposition itself when the drive push rod 1 or the fixed push rod 2 moves horizontally and presses against the first abutment surface 3011, thereby unlocking or locking the door lock assembly. When the first insertion part 201 of the fixed push rod 2 is inserted into the vacuum chamber 101 of the drive push rod 1, it can cooperate with the sealing plug 204 to seal the vacuum chamber 101. The suction pipe 501 is inserted into the plug 203, allowing air to be extracted from the vacuum chamber 101 through the first insertion part 201. At this time, the air pressure in the vacuum chamber 101 can drive the fixed push rod 2 towards the drive push rod 1.

[0049] Specifically, the first insertion part 201 of the fixed push rod 2 is inserted into the vacuum chamber 101 of the drive push rod 1, and the first insertion part 201 can slide back and forth within the vacuum chamber 101. Simultaneously, a limiting structure is provided within the vacuum chamber 101, and a limiting protrusion is provided at the position corresponding to the limiting structure of the first insertion part 201. When the first insertion part 201 slides outward to its maximum position, the limiting structure can stop the limiting protrusion to prevent the first insertion part 201 from disengaging from the vacuum chamber 101. When the door lock assembly is in the locked state, the drive push rod 1 disengages from the latch 3, and the fixed push rod 2 is in the locked position and abuts against the second contact surface 3012 of the latch 3. Rotating the handle 6 can drive the drive push rod 1 horizontally towards the fixed push rod 2 via the connecting rod assembly 4, and press the first contact surface 3011 of the latch 3, causing the latch 3 to move vertically to make room and disengage from the fixed push rod 2. At this time, the vacuum device 5 extracts the air from the vacuum chamber 101, so that the fixed push rod 2 moves to the unlock position in the direction of the drive push rod 1, thereby making the door lock assembly in the unlocked state.

[0050] When the door lock assembly is in the unlocked state, pushing the handle 6 causes the drive push rod 1 and the fixed push rod 2 to move horizontally towards the bolt 3 via the linkage assembly 4, pressing the first abutment surface 3011 of the bolt 3, so that the bolt 3 moves vertically to make room. When the fixed push rod 2 moves to the locked position, the bolt 3 falls, and the fixed push rod 2 abuts against the second abutment surface 3012 of the bolt 3, so that the door lock assembly is in the locked state.

[0051] In some embodiments, the drive push rod 1 further includes a pressure relief valve 102. The pressure relief valve 102 is disposed on the wall surface of the drive push rod 1.

[0052] Specifically, the latch 3 is also equipped with a detection device. When the detection device detects that the fixed push rod 2 has disengaged from the latch 3, it can control the pressure relief valve 102 to open, so that the vacuum chamber 101 returns to normal pressure, thus preventing the fixed push rod 2 from failing to engage with the latch 3 when locking the door lock assembly. Preferably, the detection device is a photosensitive sensor.

[0053] In some embodiments, the vacuum device 5 further includes a fixed switch 502. The fixed switch 502 is disposed outside the suction pipe 501, and a pressure sensor is disposed on the end face that abuts against the fixed push rod 2.

[0054] Specifically, the first distance L1 between the fixed switch 502 and the opening of the suction pipe 501 is greater than or equal to 0.5 cm, for example, it can be 0.5 cm, 1 cm, or 1.5 cm. This setting ensures that after the suction pipe 501 is inserted into the plug 203, the fixed push rod 2 then abuts against the fixed switch 502. When the pressure sensor detects that the fixed push rod 2 abuts against the fixed switch 502, the vacuum device 5 can be controlled to extract air from the vacuum chamber 101.

[0055] In some embodiments, the handle 6 includes a cam that abuts against the linkage assembly 4. When the handle 6 is rotated, the linkage assembly 4 can be moved by the cam.

[0056] Specifically, the handle 6 includes a cam and a latch directly connected to the cam. The latch includes a first end connected to the cam, and the first end of the latch is provided with a pivot. The user can rotate the handle 6 around the pivot via the latch, thereby driving the linkage assembly 4 to move via the cam.

[0057] In some embodiments, the linkage assembly 4 includes a main linkage 401 and a secondary linkage 402. The main linkage 401 includes a first end that abuts against a cam of the handle 6 and a second end disposed opposite to the first end; one end of the secondary linkage 402 is rotatably connected to the second end of the main linkage 401, and the other end is rotatably connected to the drive push rod 1. The first end of the main linkage 401 is disposed below the second end.

[0058] Specifically, the main connecting rod 401 and the drive push rod 1 are arranged perpendicularly to each other, and the auxiliary connecting rod 402 is used to connect the main connecting rod 401 and the drive push rod 1. When the door lock assembly is in the locked state, the main connecting rod 401 and the auxiliary connecting rod 402 are in the locked position. The handle 6 is rotated and the cam lifts the main connecting rod 401, which in turn drives the drive push rod 1 to move through the auxiliary connecting rod 402.

[0059] It is understandable that since the secondary connecting rod 402 is rotatably connected to the main connecting rod 401 and the drive push rod 1, when the main connecting rod 401 drives the drive push rod 1 to move through the secondary connecting rod 402, the drive push rod 1 can be guaranteed to move along a predetermined trajectory. For example, the drive push rod 1 can be made to move in a direction perpendicular to the direction of movement of the main connecting rod 401.

[0060] In some embodiments, the angle between the secondary connecting rod 402 and the axis of the drive push rod 1 is a first angle θ. When the door lock assembly is in the locked state, the first angle θ is less than or equal to 45°.

[0061] Specifically, the first included angle θ is less than or equal to 45°. For example, it can be 40°, 35°, or 30°. This setting is more conducive to the main connecting rod 401 driving the drive push rod 1 to move in a direction perpendicular to the direction of movement of the main connecting rod 401.

[0062] Furthermore, when the door lock assembly is in the locked state, the first included angle θ is at its maximum. Rotating the handle 6 lifts the main connecting rod 401 via the cam, which in turn drives the push rod 1 to move via the secondary connecting rod 402. At this time, the door lock assembly is in the unlocked state, and the first included angle θ is at its minimum.

[0063] In some embodiments, the main connecting rod 401 is vertically arranged, and the drive push rod 1 is horizontally arranged. When the door lock assembly is in the locked state, the handle 6 rotates, and the cam drives the main connecting rod 401 to move vertically upward, which in turn drives the drive push rod 1 to move horizontally through the auxiliary connecting rod 402 to press the latch 3.

[0064] Specifically, when the door lock is in the locked state, the drive 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 its lowest point. When the handle 6 is rotated, the cam pushes the main connecting rod 401 up, and through the secondary connecting rod 402, drives the drive push rod 1 to move horizontally towards the fixed push rod 2. The drive push rod 1 presses against the first abutment surface 3011 of the latch 3, causing the latch 3 to move vertically to make room.

[0065] In some embodiments, the door lock assembly further includes a first elastic element 7. One end of the first elastic element 7 abuts against the drive push rod 1, and the other end abuts against the fixed push rod 2.

[0066] Specifically, when the door lock assembly is in the unlocked state, pushing the handle 6 causes the drive push rod 1 and the fixed push rod 2 to move horizontally towards the latch 3 via the linkage assembly 4, pressing the first abutment surface 3011 of the latch 3, so that the latch 3 moves vertically to make room. When the fixed push rod 2 moves to the locked position, the first elastic element 7 pushes the fixed push rod 2, so that the first insertion part 201 slides outward to its maximum position within the vacuum chamber 101. At the same time, the latch 3 resets, and the fixed push rod 2 abuts against the second abutment surface 3012 of the latch 3, so that the door lock assembly is in the locked state.

[0067] Furthermore, the locking tongue 3 is symmetrically arranged in two sets, one above the other.

[0068] Understandably, symmetrically arranging two sets of latches 3 is beneficial to the stability of the door lock assembly when it is locked. At the same time, this arrangement can distribute the force on each individual latch 3, which helps to improve the durability of the door lock assembly.

[0069] In some embodiments, the latch 3 is further provided with a second elastic element 303. When the drive push rod 1 disengages from the latch 3, the second elastic element 303 can drive the latch 3 to reset.

[0070] Specifically, when the fixed push rod 2 moves to the locked position, the second elastic element 303 pushes the fixed push rod 2 so that the first insertion part 201 slides outward to the maximum position in the vacuum chamber 101. At the same time, the second elastic element 303 pushes the latch 3 to reset, and the fixed push rod 2 abuts against the second abutment surface 3012 of the latch 3 so that the door lock assembly is in the locked state.

[0071] In some embodiments, the latch 3 includes a second insertion portion 302 and a second abutment portion 301 corresponding to the second insertion portion 302. The second abutment portion 301 includes a first abutment surface 3011 and a second abutment surface 3012.

[0072] Specifically, the second insertion portion 302 of the locking tongue 3 is inserted into the sliding sleeve 304, and the locking tongue 3 can slide within the sliding sleeve 304. A stop member 305 is provided at the end of the second insertion portion 302 opposite to the second abutment portion 301. The stop member 305 abuts against the sliding sleeve 304 to prevent the locking tongue 3 from disengaging from the sliding sleeve 304. Simultaneously, the first end of the second elastic element 303 abuts against the second abutment portion 301, and the second end abuts against the sliding sleeve 304.

[0073] This disclosure also provides a cabinet device including a cabinet, a main door 8 disposed at the opening of the cabinet, and a secondary door 9 disposed outside the main door 8, and also includes the aforementioned door lock assembly.

[0074] Specifically, the refrigerator is a door-in-door refrigerator, and the door lock assembly can lock the secondary door 9 to the main door 8. When the secondary door 9 is locked to the main door 8, the main door 8 and the secondary door 9 can rotate synchronously to open or close the opening of the refrigerator. When the secondary door 9 is unlocked to the main door 8, the secondary door 9 can rotate independently to open or close the main door 8.

[0075] In some embodiments, the vacuum device 5 and the latch 3 are disposed inside the main door 8; and the drive push rod 1 and the connecting rod assembly 4 are disposed inside the secondary door 9.

[0076] Specifically, the main door 8 is provided with a fixing groove that can accommodate the latch 3, and the latch 3 is slidably disposed in the fixing groove. Among them, a bushing fixing structure is provided in the fixing groove, and the sliding bushing 304 is fixedly disposed in the bushing fixing structure.

[0077] In some embodiments, the secondary door 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.

[0078] Specifically, the guide structure 9011 is a protrusion, and the guide structure 9011 fits against the main connecting rod 401 so that the main connecting rod 401 moves along a predetermined trajectory. When the handle 6 drives the main connecting rod 401 to move vertically in the first mounting groove 901, the guide structure 9011 can prevent the main connecting rod 401 from moving horizontally.

[0079] In some embodiments, the secondary door 9 is further provided with a second mounting groove 902, and the drive 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.

[0080] Specifically, the second mounting groove 902 is perpendicular to the first mounting groove 901 so that the movement direction of the drive push rod 1 is perpendicular to the movement direction of the main connecting rod 401.

[0081] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. 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 its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A door lock assembly, characterized in that, include: The drive push rod is connected to the handle via a linkage assembly and has a vacuum chamber inside; The locking tongue includes a first abutting surface that can abut against the drive push rod and a second abutting surface that corresponds to the first abutting surface; The fixed push rod includes a first insertion part inserted into the vacuum cavity, wherein the first insertion part is a hollow structure with a plug. A sealing plug, disposed between the first insertion portion and the drive push rod, is used to seal the vacuum cavity; and, A vacuum device, including a suction tube inserted into the plug; The vacuum device can communicate with the vacuum chamber through the first plug-in part. When the door lock assembly is in the locked state, the bolt abuts against the fixed push rod. The handle can drive the drive push rod to move through the linkage assembly and squeeze the first abutment surface of the bolt, so that the bolt moves and disengages from the fixed push rod. At the same time, the vacuum device evacuates the vacuum chamber so that the drive push rod can drive the fixed push rod to move, thereby putting the door lock assembly in the unlocked state.

2. The door lock assembly according to claim 1, characterized in that, The drive push rod also includes: A pressure relief valve is installed on the wall surface of the drive push rod.

3. The door lock assembly according to claim 1, characterized in that, The vacuum device also includes: A fixed switch is located on the outside of the suction pipe, and a pressure sensor is provided on the end face that abuts against the fixed push rod.

4. The door lock assembly according to claim 1, characterized in that, The handle includes a cam that abuts against the linkage assembly; When the handle is rotated, the linkage assembly can be moved by the cam.

5. The door lock assembly according to claim 4, characterized in that, The linkage assembly includes: The main connecting rod includes a first end that abuts against a cam of the handle, and a second end disposed opposite to the first end; and, 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 drive push rod; The first end of the main connecting rod is located at the lower part of the second end.

6. The door lock assembly according to claim 5, 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; When the door lock assembly is in the locked state, the first included angle θ is less than or equal to 45°.

7. The door lock assembly according to claim 6, characterized in that, The main connecting rod is set vertically, and the drive push rod is set horizontally; When the door lock assembly is in the locked state, the handle rotates, and the cam drives the main connecting rod to move vertically upward, which in turn drives the drive push rod to move horizontally to press the bolt.

8. The door lock assembly according to claim 1, characterized in that, Also includes: The first elastic element has one end abutting against the drive push rod and the other end abutting against the fixed push rod.

9. A box-type device, characterized in that, The enclosure includes a housing, a main door located at the opening of the housing, and a secondary door located outside the main door. It also includes: The door lock assembly as described in any one of claims 1 to 8.

10. The enclosure device according to claim 9, characterized in that, The vacuum device and the latch are located inside the main door; and... The drive push rod and the connecting rod assembly are disposed inside the secondary door.

11. The enclosure device according to claim 10, characterized in that, The secondary 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.

12. The enclosure device according to claim 11, characterized in that, The secondary door is also provided with a second mounting groove, and the drive push rod is slidably disposed in the second mounting groove; and... The second mounting slot is positioned perpendicular to the first mounting slot.

Images