Door lock and cabinet device

Abstract

The application relates to the technical field of locks, and discloses a door lock which comprises a lock ring, a lock hook and an unlocking device. The lock ring comprises a first lock ring part and a second lock ring part which abut against each other, and the first lock ring part and the second lock ring part can form a closed lock ring. The lock hook can be clamped to the lock ring. The unlocking device comprises a pressing end and an elastic abutting end, and the pressing end is connected with the first lock ring part. When the pressing end is in a pressing state, the first lock ring part is driven by the pressing end to move away from the second lock ring part, so that the lock hook is separated from the lock ring. When the pressing end is in a relaxed state, the first lock ring part is driven by the pressing end to move close to the second lock ring part, a closed lock ring is formed, and the lock hook is locked with the lock ring. The application also discloses a box equipment.

Description

Technical Field

[0001] This application relates to the field of lock technology, and in particular to a door lock and cabinet device. Background Technology

[0002] A door lock is a type of lock installed on a door. In daily life, door locks can be installed on the doors of furniture such as refrigerators, wardrobes, and cabinets to secure them. For example, if a refrigerator has been used for a long time, the seal may wear or deform, causing the door to not close properly. A loose door can lead to poor refrigeration, increased energy consumption, and frost buildup inside the refrigerator. Furthermore, if children are present in the home and the refrigerator door is not locked, they can easily open it and consume cold food.

[0003] In related technologies, the above problems are solved by installing door locks on the door.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] If the door lock malfunctions while the door is locked, it will be unable to unlock, thus preventing the door from being opened and reducing the user experience. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a door lock that solves the problem of the current door lock being unable to be unlocked by the main switch when a malfunction occurs by setting a backup switch on the door lock.

[0008] In some embodiments, a door lock includes a lock ring, a lock hook, and an unlocking device.

[0009] The locking ring includes a first locking ring portion and a second locking ring portion that abut against each other, and the first locking ring portion and the second locking ring portion can form a closed locking ring. A locking hook can engage with the locking ring. The unlocking device includes a pressing end and a resilient abutting end, the pressing end being connected to the first locking ring portion. Specifically, when the pressing end is in a pressed state, the first locking ring portion moves away from the second locking ring portion under the action of the pressing end, causing the locking hook to disengage from the locking ring. When the pressing end is in a relaxed state, the first locking ring portion moves closer to the second locking ring portion under the action of the pressing end, forming a closed locking ring, thus locking the locking hook to the locking ring.

[0010] In some embodiments, the first locking ring portion includes a connecting rod and a stop rod directly connected to the connecting rod, the connecting rod being able to drive the stop rod to move. The first end of the second locking ring portion is used to abut against the stop rod of the first locking ring portion to form a closed locking ring, and the pressing end of the unlocking device is connected to the connecting rod of the first locking ring portion.

[0011] In some embodiments, a first abutting structure is provided at the second end of the second locking ring portion, and a second abutting structure is provided at the end of the stop bar that abuts against the second locking ring portion. When the first abutting structure and the second abutting structure abut against each other, a closed locking ring can be formed.

[0012] In some embodiments, the stop bar and the connecting bar are arranged perpendicular to each other.

[0013] In some embodiments, a door lock further includes a limiting block. The limiting block is disposed at the connection between the unlocking device and the first locking ring portion. A limiting groove is provided at the position corresponding to the limiting block in the second locking ring portion. When the second locking ring portion abuts against the stop bar, the limiting block can be inserted into the limiting groove to form a closed locking ring.

[0014] In some embodiments, the size of the limiting block is less than or equal to the size of the limiting groove.

[0015] In some embodiments, the elastic abutment end of the unlocking device is provided with a snap-fit ​​protrusion. The snap-fit ​​protrusion is covered with an elastic element.

[0016] In some embodiments, a housing device includes a housing and a door disposed at an opening in the housing, and also includes the aforementioned door lock.

[0017] In some embodiments, a door lock is disposed on a first side of the door. A lock hook is disposed on the housing at a position corresponding to the door lock. The lock hook can be inserted into a locking ring to restrict the movement of the door, and the first side of the door faces the opening of the housing.

[0018] In some embodiments, the unlocking device is inserted into a receiving groove on a second side of the door, the second side being adjacent to the first side. The elastic element abuts against the inner wall of the receiving groove, and the size of the receiving groove is greater than or equal to a preset size.

[0019] In some embodiments, the compression of the elastic element is greater than or equal to the width of the locking hook.

[0020] Some technical solutions provided in the embodiments of this disclosure can achieve the following technical effects:

[0021] The door lock provided in this solution has an unlocking device that is initially in a locked state. The first locking ring, driven by the elastic abutment end, approaches the second locking ring, forming a closed locking ring and locking the hook to the locking ring. Pressing the pressing end of the unlocking device moves the first locking ring away from the second locking ring, opening the locking ring and allowing the hook to disengage from the opening. Thus, when the main switch of the door lock malfunctions, the unlocking device can unlock the door, solving the problem of the door being unable to open.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a door lock provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of the structure of a first locking ring and an unlocking device provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of the structure of a second locking ring provided in an embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of a door lock in a locked state provided in an embodiment of this disclosure;

[0028] Figure 5 This is a schematic diagram of a door lock in an unlocked state provided in an embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of the structure of a locking hook provided in an embodiment of this disclosure;

[0030] Figure 7 This is a cross-sectional schematic diagram of a housing device provided in an embodiment of this disclosure;

[0031] Figure 8 This is a partial structural diagram of a door provided in an embodiment of this disclosure.

[0032] Figure label:

[0033] 1: First locking ring; 101: Connecting rod; 102: Stop bar; 103: Second abutting structure; 104: Limiting block; 2: Second locking ring; 201: First abutting structure; 202: Limiting groove; 3: Unlocking device; 301: Pressing end; 302: Elastic abutting end; 303: Snap-fit ​​protrusion; 4: Locking hook; 401: Locking end; 402: Moving end; 5: Liner; 6: Door body; 601: Receiving groove; 7: Box body. Detailed Implementation

[0034] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0035] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0036] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0037] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" 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, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0038] Unless otherwise stated, the term "multiple" means two or more.

[0039] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0040] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0042] As living standards improve, people are acquiring more and more types of furniture, and their requirements for furniture functions are becoming increasingly detailed. For furniture with storage functions, such as wardrobes, cabinets, and refrigerators, people not only require that these pieces of furniture can store items, but also that the doors remain locked when not in use. This is generally addressed by installing door locks to prevent accidental opening.

[0043] Taking household refrigerators as an example, existing household refrigerators have door locks to prevent accidental opening. Meanwhile, for user convenience, smart refrigerators also use electronic locks. However, when the refrigerator experiences a power outage or electrical malfunction, users will be unable to unlock and open the door normally, thus reducing the user experience.

[0044] This disclosure provides a door lock that solves the problem of a door lock being unable to be unlocked by the main switch when a malfunction occurs by providing an unlocking device on the door lock.

[0045] like Figure 1 As shown, in some embodiments, a door lock includes a lock ring, a lock hook 4, and an unlocking device 3.

[0046] The locking ring includes a first locking ring portion 1 and a second locking ring portion 2 that abut against each other, and the first locking ring portion 1 and the second locking ring portion 2 can form a closed locking ring. The locking hook 4 can be engaged with the locking ring. The unlocking device 3 includes a pressing end 301 and an elastic abutting end 302, the pressing end 301 being connected to the first locking ring portion 1. When the pressing end 301 is in a pressed state, the first locking ring portion 1 moves away from the second locking ring portion 2 under the action of the pressing end 301, causing the locking hook 4 to disengage from the locking ring. When the pressing end 301 is in a relaxed state, the first locking ring portion 1 moves closer to the second locking ring portion 2 under the action of the pressing end 301, forming a closed locking ring, thus locking the locking hook 4 to the locking ring.

[0047] Specifically, when the door lock is in the locked state, the unlocking device 3 is in the initial position. The first locking ring 1 and the second locking ring 2 abut against each other to form a closed locking ring. At this time, the lock hook 4 engages with the locking ring to lock the door body 6. When force is applied to the pressing end 301 of the unlocking device 3, the unlocking device 3 drives the first locking ring 1 connected to it to move away from the second locking ring 2, so that the closed locking ring opens. At this time, the lock hook 4 can disengage from the opening of the locking ring, so that the door lock is in the unlocked state. When the locked state is restored, the unlocking device 3 moves to the initial position to drive the first locking ring 1 connected to it closer to the second locking ring 2. When the first locking ring 1 and the second locking ring 2 abut against each other, the lock hook 4 re-engages with the closed locking ring to lock the door body 6.

[0048] The first locking ring 1 is fixedly connected to the pressing end 301 of the unlocking device 3. For example, it can be connected by welding, snap-fitting, or integral molding, so that the unlocking device 3 can drive the first locking ring 1 to move.

[0049] In some embodiments, the first locking ring portion 1 includes a connecting rod 101 and a stop rod 102 directly connected to the connecting rod 101, wherein the connecting rod 101 can drive the stop rod 102 to move. The first end of the second locking ring portion 2 is used to abut against the stop rod 102 of the first locking ring portion 1 to form a closed locking ring, and the pressing end 301 of the unlocking device 3 is connected to the connecting rod 101 of the first locking ring portion 1.

[0050] Specifically, when the door lock is in the locked state, the stop bar 102 of the first lock ring 1 abuts against the second lock ring 2 to form a closed lock ring. At this time, the lock hook 4 is engaged with the lock ring, and the stop bar 102 of the first lock ring 1 stops the lock hook 4 to lock the door body 6. When force is applied to the unlocking device 3, the unlocking device 3 moves the first lock ring 1 away from the second lock ring 2, and the stop bar 102 of the first lock ring 1 disengages from the second lock ring 2, so that the closed lock ring opens. At this time, the stop bar 102 disengages from the lock hook 4, so that the lock hook 4 can disengage from the lock ring opening, so that the door lock is in the unlocked state. When the locked state is restored, the unlocking device 3 moves to the initial position to move the first lock ring 1 connected to it closer to the second lock ring 2. The connecting rod 101 of the first lock ring 1 moves the stop bar 102 to abut against the second lock ring 2 to stop the lock hook 4.

[0051] In some embodiments, the second end of the second locking ring portion 2 is provided with a first abutting structure 201, and the end of the stop bar 102 that abuts against the second locking ring portion 2 is provided with a second abutting structure 103. When the first abutting structure 201 abuts against the second abutting structure 103, a closed locking ring can be formed.

[0052] Specifically, the first abutting structure 201 is configured as an abutting protrusion, and the second abutting structure 103 is configured as an abutting groove, or the first abutting structure 201 is configured as an abutting groove and the second abutting structure 103 is configured as an abutting protrusion.

[0053] The diameter of the abutting protrusion is less than or equal to the inner diameter of the abutting groove. When the first locking ring 1 and the second locking ring 2 abut against each other, the abutting protrusion is embedded in the abutting groove, preventing the first locking ring 1 from disengaging from the second locking ring 2. The abutting protrusion is configured as a cylindrical structure, and the abutting groove is configured as a corresponding cylindrical structure, so that when the stop bar 102 abuts against the second locking ring 2, the abutting protrusion can be smoothly embedded in the abutting groove.

[0054] In some embodiments, the abutment protrusion is configured to be made of a resilient material.

[0055] Specifically, the abutting protrusion is made of an elastic material. When the abutting protrusion is embedded in the abutting groove, the abutting protrusion and the abutting groove form an interference fit, which is more conducive to the stability of the stop bar 102 when it abuts against the first locking ring part 1.

[0056] In some embodiments, the stop bar 102 and the connecting bar 101 are arranged perpendicular to each other.

[0057] Specifically, the stop bar 102 is set perpendicular to the connecting rod 101, which facilitates the smooth insertion of the abutment protrusion into the abutment groove when the stop bar 102 abuts against the second lock ring 2. At the same time, setting the stop bar 102 perpendicular to the connecting rod 101 allows the lock hook 4 to be more stably engaged with the closed lock ring when the door lock is in the locked state.

[0058] In some embodiments, the door lock further includes a limiting block 104. The limiting block 104 is disposed at the connection between the unlocking device 3 and the first locking ring portion 1. A limiting groove 202 is provided at the position corresponding to the limiting block 104 of the second locking ring portion 2. When the second locking ring portion 2 abuts against the stop bar 102, the limiting block 104 can be inserted into the limiting groove 202 to form a closed locking ring.

[0059] Specifically, the limiting block 104 is square or rectangular, and the limiting groove 202 is a recess corresponding to the shape of the limiting block 104, so that the limiting block 104 can be embedded in the limiting groove 202. Meanwhile, the connection between the limiting block 104, the unlocking device 3, and the first locking ring 1 is a fixed connection. For example, welding, snap-fitting, or integral molding can be used, so that the unlocking device 3 can drive the limiting block 104 to move.

[0060] In some embodiments, the size of the limiting block 104 is less than or equal to the size of the limiting groove 202.

[0061] Specifically, when the door lock is in the locked state, the limiting block 104 is located within the limiting groove 202, forming a closed locking ring together with the first locking ring 1 and the second locking ring 2. Pressing the pressing end 301 of the unlocking device 3 causes the unlocking device 3 to move the limiting block 104, causing the limiting block 104 to slide out of the limiting groove 202. At the same time, the limiting block 104 cooperates with the limiting groove 202 to restrict the movement trajectory of the first locking ring 1.

[0062] In some embodiments, the elastic abutment end 302 of the unlocking device 3 is provided with a snap-fit ​​protrusion 303. The snap-fit ​​protrusion 303 is covered with an elastic element.

[0063] Specifically, the locking protrusion 303 is configured as a cylinder so that the elastic element can be fitted onto the locking protrusion 303. When the door lock is in the initial state, the unlocking device 3 is in the locked position, and the elastic element is in the relaxed state. Pressing the pressing end 301 of the unlocking device 3 moves the unlocking device 3 to the unlock position, while the elastic abutment end 302 of the unlocking device 3 compresses the elastic element, putting the elastic element in a compressed state. When the pressure on the pressing end 301 of the unlocking device 3 is released, the elastic element compresses the elastic abutment end 302 of the unlocking device 3, causing the unlocking device 3 to move to the locked position.

[0064] In some embodiments, a housing device includes a housing 7 and a door 6 disposed at an opening of the housing 7, and also includes the aforementioned door lock.

[0065] Specifically, the aforementioned cabinet equipment includes refrigerators, cabinets, wardrobes, etc.

[0066] In some embodiments, a door lock is disposed on a first side of the door body 6. A lock hook 4 is disposed on the housing 7 at a position corresponding to the door lock. The lock hook 4 can be inserted into a locking ring to restrict the movement of the door body 6, and the first side of the door body 6 is the side facing the opening of the housing 7.

[0067] Specifically, when the door 6 is locked, the door 6 is in contact with the housing 7, and the locking hook 4 is engaged with the closing lock ring to restrict the movement of the door 6. When the door 6 is unlocked, the locking hook 4 moves and disengages from the closing lock ring to release the restriction on the movement of the door 6.

[0068] In some embodiments, the unlocking device 3 is inserted into a receiving groove 601 on the second side of the door body 6, the second side being adjacent to the first side. The elastic element abuts against the inner wall of the receiving groove 601, and the size of the receiving groove 601 is greater than or equal to a preset size.

[0069] Specifically, the preset size is 2cm, meaning the size of the receiving groove 601 is greater than or equal to 2cm. This makes it easier for the user to insert their finger into the receiving groove 601 to press the pressing end 301 of the unlocking device 3.

[0070] In some embodiments, the compression of the elastic element is greater than or equal to the width of the hook 4.

[0071] It is understandable that the compression of an elastic element is the difference between its length in the relaxed state and its length in the compressed state.

[0072] Specifically, when the door lock is in the locked state, the elastic element is in the relaxed state. Pressing the pressing end 301 of the unlocking device 3 moves the unlocking device 3 to the unlock position, and the elastic abutment end 302 of the unlocking device 3 compresses the elastic element. While the unlocking device 3 compresses the elastic element, it drives the first locking ring 1 to move. When the unlocking device 3 compresses the elastic element to the maximum compression state, the openings of the first locking ring 1 and the second locking ring 2 are at their maximum opening state. At this time, the width of the openings of the first locking ring 1 and the second locking ring 2 is greater than or equal to the width of the lock hook 4, so that the lock hook 4 can disengage from the lock ring at the opening, thereby unlocking the door lock and releasing the restriction on the movement of the door 6.

[0073] In some embodiments, the locking hook 4 includes a locking end 401 and a moving end 402, and the locking end 401 and the moving end 402 are directly connected.

[0074] Specifically, when the door lock is in the locked state, the locking end 401 of the lock hook 4 engages with the closed lock ring to stop the stop bar 102 of the first lock ring part 1. When it is necessary to unlock the door 6, the moving end 402 drives the locking end 401 to disengage from the closed lock ring to unlock the door 6.

[0075] In some embodiments, the locking hook 4 is rotatably disposed in the housing 7.

[0076] Specifically, when the door lock is in the locked state, the locking end 401 of the lock hook 4 engages with the closing lock ring to restrict the movement of the door body 6. When unlocking is required, the moving end 402 of the lock hook 4 rotates clockwise to disengage the locking end 401 from the stop bar 102, thereby unlocking the door body 6. When locking the door body 6 is required, the moving end 402 of the lock hook 4 rotates counterclockwise to engage the locking end 401 with the lock ring, thereby locking the door body 6.

[0077] In some embodiments, the locking hook 4 is movably disposed within the housing 7.

[0078] Specifically, when the door lock is in the locked state, the locking end 401 of the lock hook 4 engages with the closing lock ring to restrict the movement of the door body 6. When unlocking is required, the moving end 402 of the lock hook 4 moves upward to disengage the locking end 401 from the stop bar 102, thereby unlocking the door body 6. When locking the door body 6 is required, the moving end 402 of the lock hook 4 moves downward to engage the locking end 401 with the lock ring, thereby locking the door body 6.

[0079] In the embodiments disclosed herein, “clockwise rotation,” “counterclockwise rotation,” “upward movement,” and “downward movement” are descriptions of the movement of the locking hook 4 based on the accompanying drawings.

[0080] In some embodiments, when the door lock is in the locked state, the pressing end 301 of the unlocking device 3 is flush with the second side of the door body 6.

[0081] Specifically, when the door lock is in the locked state, the pressing end 301 of the unlocking device 3 is flush with the second side of the door body 6. In this way, while ensuring the aesthetics of the door body 6, it also makes it convenient for the user to press the pressing end 301 of the unlocking device 3 to unlock the door lock.

[0082] In some embodiments, the enclosure device is further provided with a liner 5. The liner 5 is fixedly disposed on the first side of the door 6, and the limiting groove 202 of the second locking ring portion 2 is connected to the liner 5.

[0083] Specifically, the liner 5 is fixedly mounted to the first side of the door body 6 by bolts. The second locking ring 2 is connected to the liner 5 by a fixed connection. For example, welding, snap-fitting, or integral molding.

[0084] In some embodiments, the liner 5 is provided with a clearance opening at a position corresponding to the limiting block 104 and the limiting groove 202.

[0085] Specifically, when the door lock is in the locked state, the limiting block 104 is embedded in the limiting groove 202 and the clearance opening of the liner 5. When the pressing end 301 of the unlocking device 3 is pressed, the unlocking device 3 can drive the limiting block 104 to slide along the limiting groove 202 and the clearance opening.

[0086] In some embodiments, the door lock is further provided with a protective sleeve. The pressing end 301 of the unlocking device 3 is inserted into the protective sleeve. The protective sleeve is made of an elastic material.

[0087] Specifically, when the user presses the pressing end 301 of the unlocking device 3, the protective cover can act as a buffer to prevent the user from directly contacting the door 6.

[0088] The protective cover can be made of materials such as silicone or TPE (Thermoplastic Elastomer).

[0089] 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, characterized in that, include: A locking ring includes a first locking ring portion and a second locking ring portion that abut against each other, and the first locking ring portion and the second locking ring portion can form a closed locking ring; wherein, the first locking ring portion includes a connecting rod and a stop rod directly connected to the connecting rod; A locking hook that can be engaged with the locking ring; The unlocking device includes a pressing end and a resilient abutment end, the pressing end being connected to the first locking ring portion; and, A limiting block is provided at the connection between the unlocking device and the first locking ring; wherein, a limiting groove is provided at the position corresponding to the limiting block of the second locking ring, and when the second locking ring abuts against the stop bar, the limiting block can be embedded in the limiting groove to form the closed locking ring; When the pressing end is in a pressed state, the first locking ring part moves away from the second locking ring part under the action of the pressing end, causing the locking hook to disengage from the locking ring; when the pressing end is in a relaxed state, the first locking ring part moves closer to the second locking ring part under the action of the pressing end, forming a closed locking ring, causing the locking hook to lock with the locking ring.

2. The door lock according to claim 1, characterized in that, The connecting rod can drive the stop rod to move; Wherein, the first end of the second locking ring portion is used to abut against the stop bar of the first locking ring portion to form the closed locking ring, and the pressing end of the unlocking device is connected to the connecting rod of the first locking ring portion.

3. The door lock according to claim 2, characterized in that, The second end of the second locking ring is provided with a first abutting structure, and the end of the stop bar that abuts against the second locking ring is provided with a second abutting structure. When the first abutting structure abuts against the second abutting structure, the closed locking ring can be formed.

4. The door lock according to claim 2, characterized in that, The stop bar and the connecting bar are arranged perpendicular to each other.

5. The door lock according to claim 1, characterized in that, The size of the limiting block is less than or equal to the size of the limiting groove.

6. The door lock according to claim 1, characterized in that, The elastic abutment end of the unlocking device is provided with a locking protrusion. The snap-fit ​​protrusion is provided with an elastic element.

7. A box-type device, comprising a box and a door disposed at an opening of the box, characterized in that, Also includes: A door lock, as described in any one of claims 1 to 6.

8. The enclosure device according to claim 7, characterized in that, The door lock is located on the first side of the door; and, The locking hook is positioned on the box body corresponding to the door lock. The locking hook can be inserted into the closing locking ring to restrict the movement of the door, and the first side of the door is the side facing the opening of the box.

9. The enclosure device according to claim 8, characterized in that, The unlocking device is inserted into a receiving groove on the second side of the door, the second side being adjacent to the first side; and, The elastic abutment end of the unlocking device is provided with a snap-fit ​​protrusion, and the snap-fit ​​protrusion is covered with an elastic element. The elastic element abuts against the inner wall of the receiving groove, and the size of the receiving groove is greater than or equal to a preset size.

10. The enclosure device according to claim 9, characterized in that, The compression of the elastic element is greater than or equal to the width of the locking hook.

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