Self-locking device and safety box

Abstract

The self-locking device comprises a cabinet body, a door plate and the self-locking device, the self-locking device is used for achieving locking between the cabinet body and the door plate, the self-locking device comprises a self-locking assembly installed on the door plate, the self-locking assembly comprises a fixed frame and a movable part, the fixed frame has a first direction, and the movable part is installed on the fixed frame in a sliding mode in the first direction; the blocking piece is installed on the cabinet body and used for synchronously driving the movable piece to move in the first direction along with the movement of the door plate towards the cabinet body; the unlocking assembly comprises a sensing module and a magnetic attraction unlocking mechanism, the sensing module is in communication connection with the magnetic attraction unlocking mechanism, and the sensing module is used for recognizing signals to control the magnetic attraction unlocking mechanism to drive the movable part to move in the first direction through magnetic force, so that the blocking part cancels the limitation of the movable part to move in the direction away from the cabinet body. The device is simple in structure, easy to install, low in manufacturing cost and low in energy consumption.

Description

Technical Field

[0001] The present application relates to the technical field of safes, and in particular to a self-locking device and a safe. Background Art

[0002] Safes are a common type of security device used to store valuables and important documents. They are commonly used in homes, businesses, and financial institutions to provide effective protection and theft prevention.

[0003] At present, the existing safe structures are generally complex and require keys, motors, springs, etc. to realize the door opening and locking functions, which makes the existing safes complicated to install, expensive, and easy to cause energy consumption. Utility Model Content

[0004] The present application provides a self-locking device and a safe, so as to solve the technical problems of the existing safes having complex structures and high costs.

[0005] In one aspect, the present application provides a self-locking device for locking a first component and a second component that are relatively movable. The self-locking device includes:

[0006] A self-locking assembly is mounted on the first component, the self-locking assembly includes a fixed frame and a movable member, the fixed frame has a first direction, and the movable member is slidably mounted on the fixed frame along the first direction;

[0007] a blocking member mounted on the second member, the blocking member being configured to drive the movable member to move in a first direction as the first member moves toward the second member, and when the movable member moves to a side away from the first member relative to the blocking member, the movable member moves in a direction opposite to the first direction under the action of a driving force, so that the blocking member restricts the movable member from moving in a direction away from the second member;

[0008] The unlocking assembly includes a sensing module and a magnetic unlocking mechanism. The sensing module is communicatively connected to the magnetic unlocking mechanism. The sensing module is used to sense an identification signal to control the magnetic unlocking mechanism to drive the movable part to move in a first direction through magnetic force, so that the movable part is configured to break away from the restriction of the blocking part and can move in a direction away from the second part.

[0009] As one of the optional embodiments of this solution, the magnetic unlocking mechanism is arranged on the first component, and the magnetic unlocking mechanism is arranged on a side of the fixing frame away from the movable part in the first direction.

[0010] As one of the optional embodiments of this solution, the magnetic attraction unlocking mechanism includes an inner core and a coil. Both the inner core and the movable member are made of ferromagnetic materials. The inner core is installed on one side of the fixed frame away from the movable member in the first direction. The coil is wound around the outer periphery of the inner core, and the coil is connected to the sensing module. When the coil is in the powered state, it magnetizes the inner core to attract the movable member to move in the first direction; when the coil is in the powered-off state, the movable member is reset at least under its own gravity.

[0011] As one of the optional embodiments of this solution, the sensing module is installed on the first component, and the sensing module is arranged on the side of the magnetic attraction unlocking mechanism away from the fixed frame.

[0012] As one of the optional embodiments of this solution, a receiving cavity is formed in the fixed frame, and the movable member is slidably installed in the receiving cavity; a sliding groove is formed in the fixed frame, and the sliding groove extends in the first direction and is connected to the receiving cavity. The self-locking component further includes a sliding member. The movable member is arranged on the sliding member, and the sliding member is movably embedded in the sliding groove. The sliding member and the sliding groove cooperate to guide the movable member to move in the first direction.

[0013] As one of the optional embodiments of this solution, the fixed frame further has a second direction and a third direction. The first direction, the second direction, and the third direction are perpendicular to each other in pairs, and the sliding groove penetrates the fixed frame along the second direction;

[0014] The self-locking component further includes a limit pin. The limit pin is arranged on the sliding member, and the limit pin is located outside the fixed frame away from the movable member in the second direction;

[0015] The limit pin has a first width W1 in the third direction, and the sliding groove has a second width W2 in the third direction. The first width W1 and the second width W2 satisfy W1>W2.

[0016] As one of the optional embodiments of this solution, the limit pin is configured to be able to rotate relative to the fixed frame synchronously with the sliding member. The limit pin has a first height H1 in the first direction, and the sliding groove has a second height H2 in the first direction. The first height H1 and the second height H2 satisfy H1<H2, and W1<H2, H1<W2.

[0017] As one of the optional embodiments of this solution, a slope is provided on the side of the movable member facing the blocking member. The side of the slope close to the blocking member is inclined towards the side close to the magnetic attraction unlocking mechanism relative to the horizontal plane.

[0018] As one of the optional embodiments of this solution, the sensing module includes a power supply and a control board. The power supply supplies power to the control board. The control board is connected to the magnetic attraction unlocking mechanism, and an identification module is connected to the control board. The identification module is used to identify the identification signal sent by the user.

[0019] On the other hand, the present application provides a safe, comprising a cabinet body, a door panel, and a self-locking device, wherein the self-locking device is used to lock the cabinet body and the door panel, and the self-locking device comprises:

[0020] A self-locking assembly is mounted on the door panel, the self-locking assembly includes a fixed frame and a movable member, the fixed frame has a first direction, and the movable member is slidably mounted on the fixed frame along the first direction;

[0021] a blocking member mounted on the cabinet body, the blocking member being used to drive the movable member to move in a first direction as the door panel moves toward the cabinet body; when the movable member moves to a side of the blocking member away from the door panel, the movable member moves in a direction opposite to the first direction under the action of a driving force, so that the blocking member restricts the movable member from moving in a direction away from the cabinet body;

[0022] The unlocking component includes a sensing module and a magnetic unlocking mechanism. The sensing module is communicatively connected to the magnetic unlocking mechanism. The sensing module is used to identify signals to control the magnetic unlocking mechanism to drive the movable part to move in a first direction through magnetic force, so that the movable part is configured to break away from the restriction of the blocking part and can move in a direction away from the cabinet.

[0023] The beneficial effects of this application are as follows: by providing a self-locking assembly and a blocking member, when the door is closed, the blocking member contacts the movable member, driving the movable member to move in a first direction until the door panel is closed, at which point the movable member falls under its own weight, and the blocking member restricts the movable member from moving away from the cabinet body. The self-locking assembly has a simple structure, and the door automatically closes through the action of the movable member's own weight and the blocking member, without requiring any additional user operation. The closing action is simple and energy-saving.

[0024] By providing an unlocking assembly, when the door is opened, the sensing module detects the unlocking signal and controls the magnetic unlocking module to magnetically drive the movable member in a first direction. The blocking member then removes the restriction on the movable member, allowing the door to open. The unlocking assembly has a simple structure and opens the door panel through a simple magnetic action. It does not require additional components such as a motor, gears, and a rotary door handle, helping to reduce costs and energy consumption. It is also simple to install and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0026] Figure 1 This is a schematic diagram of the overall structure of a safe provided in one embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the positional relationship between the self-locking device and the safe provided in one embodiment of the present application;

[0028] Figure 3This is a schematic structural diagram of a self-locking component and an unlocking component provided in one embodiment of the present application;

[0029] Figure 4 This is a schematic structural diagram of a self-locking assembly provided in one embodiment of the present application;

[0030] Figure 5 It is a structural diagram of a self-locking device provided in one embodiment of the present application.

[0031] Reference numerals:

[0032] 100. Self-locking device; 110. Self-locking assembly; 111. Fixing frame; 112. Accommodating chamber; 113. Sliding groove; 114. Movable part; 115. Inclined surface; 116. Sliding part; 117. Limit pin; 118. Balance block; 120. Blocking part; 130. Unlocking assembly; 131. Sensing module; 132. Power supply; 133. Control panel; 134. Magnetic unlocking mechanism; 135. Inner core; 136. Coil; 140. Identification module; 200. Safe; 210. Cabinet body; 220. Door panel. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0034] In this application, unless otherwise specified or limited, terms such as "connected," "connected," and "stacked" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0035] This application provides a self-locking device and a safe, which are described in detail below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments of this application. In addition, in the following embodiments, the description of each embodiment has its own emphasis. For parts not detailed in one embodiment, please refer to the relevant description of other embodiments.

[0036] In the prior art, the functions of opening and locking the door are usually achieved by using structures such as motors, gears, and springs, which results in the existing safes being complex in structure, expensive, and prone to energy consumption. To this end, the present application provides a self-locking device and a safe. The self-locking device provided in the present application has a simple structure and is convenient for opening and closing the cabinet door. The structure of the self-locking device and the safe in the present application is described below. This embodiment is only used as an example and does not limit the technical scope of the present application. It is understandable that in other embodiments, the self-locking device is not limited to being installed on the safe, but can also be installed on other cabinets, cabinets, drawers or doors, which are not limited here.

[0037] See Figure 1 and Figure 2 The safe 200 includes a cabinet body 210 and a door panel 220. The door panel 220 is rotatably mounted on the cabinet body 210 and is used to open and close the cabinet body 210. The safe 200 also includes a self-locking device 100 for achieving locking between the cabinet body 210 and the door panel 220.

[0038] For details, see Figure 2-Figure 4 The self-locking device 100 includes a self-locking component 110, which is mounted on the door panel 220. The self-locking component 110 includes a fixing frame 111 and a movable member 114. The fixing frame 111 is mounted on the door panel 220. The fixing frame 111 has a first direction Z ( Figure 1 In the embodiment of the present invention, a first movable member 114 is provided with a housing 112 within the fixing frame 111, and a movable member 114 is slidably mounted in the housing 112 along the first direction Z. Under the action of a driving force, the movable member 114 is capable of moving in a direction opposite to the first direction Z. It will be appreciated that the driving force in this embodiment can be the inherent weight of the movable member 114, or an external force, such as a force applied by a spring or other object. In this embodiment, the movable member 114 is a hollow block with an open side, thereby reducing its weight and facilitating its movement in the first direction Z against its inherent weight.

[0039] The safe 200 also includes a blocking member 120, which is mounted on the cabinet body 210. The blocking member 120 is specifically in the form of a sheet in this embodiment. The blocking member 120 drives the movable member 114 to move along the first direction Z as the door panel 220 moves toward the cabinet body 210, so that the blocking member 120 limits the movable member 114 from moving in the direction away from the cabinet body 210; that is, in the process of closing the door panel 220, the blocking member 120 contacts the movable member 114, and the blocking member 120 pushes the movable member 114 to move along the first direction Z until the door panel 220 is completely closed. The blocking member 120 is then disengaged from the movable member 114, and the movable member 114 falls under the action of its own gravity. The blocking member 120 limits the movable member 114 from moving in the direction away from the cabinet body 210, thereby achieving the closed locking of the door panel 220.

[0040] Furthermore, the safe 200 also includes an unlocking assembly 130, which includes a sensing module and a magnetic unlocking mechanism 134. The sensing module 131 and the magnetic unlocking mechanism 134 are both mounted on the door panel 220, and the sensing module 131 is in communication with the magnetic unlocking mechanism 134. The sensing module 131 is capable of identifying signals to control the magnetic unlocking mechanism 134 to drive the movable part 114 to move along the first direction Z through magnetic force, so that the blocking member 120 cancels the restriction on the movable part 114 to move in a direction away from the cabinet body 210. That is, when unlocking is required, the user sends an unlocking signal, the sensing module 131 senses the unlocking signal, and the sensing module 131 sends a signal to the magnetic unlocking mechanism 134. The magnetic unlocking mechanism 134 attracts the movable part 114 to move upward along the first direction Z, and the blocking member 120 cancels the restriction on the movable part 114 to open the door panel 220.

[0041] By setting up a self-locking component 110, when the door panel 220 is closed, the blocking member 120 restricts the movable member 114 to achieve locking of the door panel 220; when the door panel 220 is opened, the magnetic unlocking mechanism 134 attracts the movable member 114 to achieve opening of the door panel 220. By adopting the above-mentioned opening and closing method, the structure is simple, and there is no need to cooperate with complex structures such as motors, gears and rotating door handles to achieve opening and closing of the door panel 220. The cost is low, which helps to reduce production costs.

[0042] For details, see Figure 2 and Figure 3 The fixing frame 111 also has a second direction X( Figure 2 X direction) and the third direction Y ( Figure 2In the Y direction), the first direction Z, the second direction X, and the third direction Y are perpendicular to each other. In this embodiment, the magnetic unlocking mechanism 134 is arranged on the side of the fixed frame 111 away from the movable part 114 in the first direction Z, and the blocking member 120 is arranged on the side of the fixed frame 111 away from the magnetic unlocking mechanism 134 in the first direction Z. In other words, the magnetic unlocking mechanism 134 is arranged on the side of the fixed frame 111 close to the top wall of the safe 200, and the blocking member 120 is arranged on the side of the fixed frame 111 close to the bottom wall of the safe 200. In this way, when closing the door panel 220 of the safe 200, there is no need to use other structures, such as springs, to achieve the reset of the movable part 114, so that the movable part 114 can be reset under the action of its own gravity to achieve the closing of the door panel 220, further simplifying the structure of the self-locking component 110.

[0043] In some embodiments, the movable part 114 can also be slidably installed in the accommodating cavity 112 along the second direction X. At this time, the magnetic unlocking mechanism 134 is arranged on the side of the fixed frame 111 away from the movable part 114 in the second direction X, and the blocking member 120 is arranged on the side of the fixed frame 111 away from the magnetic unlocking mechanism 134 in the second direction X, which is not limited here.

[0044] For details, see Figure 3 and Figure 4 In one embodiment, the magnetic unlocking mechanism 134 includes an inner core 135 and a coil 136 . Both the inner core 135 and the movable member 114 are made of ferromagnetic materials. The inner core 135 is mounted on a side of the fixed frame 111 away from the movable member 114 in the first direction Z. The coil 136 is wound around the outer circumference of the inner core 135 and is connected to the sensing module 131 . When energized, the coil 136 magnetizes the inner core 135 to attract the movable member 114 to move in the first direction Z. When the coil 136 is de-energized, the movable member 114 returns to its original position at least under the action of its own weight.

[0045] By setting up the magnetic unlocking mechanism 134, the magnetic unlocking mechanism 134 is controlled to start only after the sensing module 131 receives the identification signal, which can effectively save energy and avoid energy waste as much as possible. The magnetic unlocking mechanism 134 can reduce power consumption.

[0046] In one embodiment, see Figure 2 and Figure 3The sensing module 131 is mounted on the door panel 220 and is disposed on a side of the magnetic unlocking mechanism 134 that is away from the fixing frame 111 in the first direction Z. The sensing module 131 includes a power supply 132 and a control board 133. The power supply 132 supplies power to the control board 133, which is connected to the magnetic unlocking mechanism 134. Specifically, the control board 133 is connected to the magnetic unlocking mechanism 134 via a coil 136. The control board 133 is connected to the magnetic unlocking mechanism 134. The recognition module 140 is configured to recognize an identification signal sent by a user.

[0047] In this embodiment, the identification module 140 is specifically a fingerprint identification module 140. It is understood that the identification module 140 may also be at least one of fingerprint identification, password identification, and face identification. In other words, the identification module 140 may be a combination of fingerprint identification and password identification, or a combination of face identification and password identification, etc., without limitation herein.

[0048] It is understandable that the sensing module 131 can also be set on the side of the magnetic unlocking mechanism 134 close to the fixing bracket 111 in the first direction Z, or can be set at any position of the door panel 220 or the cabinet 210 as needed, which is not limited here.

[0049] For further information, see Figure 4 and Figure 5 The fixed frame 111 is provided with a sliding groove 113. The sliding groove 113 extends along the first direction Z and penetrates the fixed frame 111 along the second direction X. The sliding groove 113 is in communication with the accommodating cavity 112. The self-locking assembly 110 further includes a sliding member 116. The sliding member 116 penetrates the movable member 114 and is movably embedded in the sliding groove 113. The sliding member 116 cooperates with the sliding groove 113 to guide the movable member 114 to move along the first direction Z.

[0050] It is easy to understand that in this embodiment, the sliding member 116 is a latch and is L-shaped. In some embodiments, the sliding member 116 can also be fixed to both sides of the movable member 114, and the sliding member 116 and the movable member 114 can be welded or integrally formed, which is not limited here.

[0051] For details, see Figure 4 and Figure 5 The self-locking assembly 110 further includes a stop pin 117 disposed on the sliding member 116 and located on the outside of the fixing frame 111 away from the movable member 114 in the second direction X. The stop pin 117 has a first width W1 in the third direction Y, and the sliding slot 113 has a second width W2 in the second direction X. The first width W1 and the second width W2 satisfy W1>W2.

[0052] Since W1>W2 between the first width W1 and the second width W2, after the self-locking component 110 is installed, the limit pin 117 can limit the sliding member 116 in the second direction X, so as to prevent the sliding member 116 from falling off the movable member 114 as much as possible, and further prevent the movable member 114 from falling out of the accommodating cavity 112, which helps to ensure the installation and movement effect of the movable member 114.

[0053] Further, in some embodiments, the limit pin 117 is configured to be able to rotate synchronously with the sliding member 116 relative to the fixed frame 111. The limit pin 117 has a first height H1 in the first direction Z, and the sliding groove 113 has a second height H2 in the first direction Z. H1<H2 is satisfied between the first height H1 and the second height H2, and W1<H2, H1<W2.

[0054] Thus, since W1<H2, H1<W2, and the limit pin 117 can rotate synchronously with the sliding member 116 relative to the fixed frame 111, when installing and disassembling the self-locking component 110, by synchronously rotating the sliding member 116 and the limit pin 117 90° around the axis of the sliding member 116, the sliding member 116 and the limit pin 117 can be taken out of the sliding groove 113, which is convenient for assembling and disassembling the self-locking component 110, helps to improve the installation efficiency, and is also convenient for replacing the self-locking component 110 when the self-locking component 110 fails.

[0055] In addition, in an embodiment, a slope 115 is provided on the side of the movable member 114 facing the blocking member 120. The side of the slope 115 close to the blocking member 120 is inclined relative to the horizontal plane toward the side close to the magnetic unlocking mechanism 134. By providing the slope 115, when performing the action of closing the door panel 220, the blocking member 120 contacts the slope 115. As the door panel 220 is closed, the blocking member 120 gradually pushes the movable member 114 to rise along the slope 115 until the door panel 220 is completely closed. Then, the movable member 114 is located on the side of the blocking member 120 away from the door panel 220, and the movable member 114 is separated from the blocking member 120. The movable member 114 falls under its own gravity, and the blocking member 120 restricts the movable member 114 and the door panel 220 from moving away from the cabinet body 210, realizing locking.

[0056] It can be understood that, in some embodiments, the slope 115 can also be an arc surface or a spherical surface, etc., which is not limited herein.

[0057] In an alternative embodiment, a spring (not shown) may also be provided within the accommodating cavity 112. The spring is disposed between the movable member 114 and the fixed frame 111. One end of the spring is connected to the surface of the movable member 114 facing the magnetic unlocking mechanism 134, and the other end is connected to the surface of the fixed frame 111 facing the movable member 114. By providing the spring, when the door is opened, the magnetic unlocking mechanism 134 attracts the movable member 114, which compresses the spring, causing it to contract. When the door is closed, the movable member 114 falls under its own weight, and the spring resets. The spring applies a downward force to the movable member 114, ensuring that the movable member 114 falls, thereby ensuring that the door panel 220 is properly closed and locked.

[0058] In addition, the present application also provides a self-locking device 100 for locking a first component and a second component that are relatively movable. In this embodiment, the first component is a door panel 220, and the second component is a cabinet 210. In other embodiments, the second component may also be a box, a wall, etc., without limitation.

[0059] Specifically, the self-locking device 100 includes a self-locking assembly 110, which is mounted on a first component. The self-locking assembly 110 includes a fixed frame 111 and a movable member 114. The fixed frame 111 has a first direction Z, and a receiving cavity 112 is defined within the fixed frame 111. The movable member 114 is slidably mounted within the receiving cavity 112 along the first direction Z. The self-locking device 100 also includes a blocking member 120, which is mounted on a second component. The blocking member 120 is configured to synchronously drive the movable member 114 to move along the first direction Z as the first component moves toward the second component, such that the blocking member 120 restricts the movable member 114 from moving away from the second component.

[0060] Specifically, the self-locking device 100 also includes an unlocking component 130, including a sensing module 131 and a magnetic unlocking mechanism 134. The sensing module 131 is communicatively connected to the magnetic unlocking mechanism 134. The sensing module 131 is used to sense an identification signal to control the magnetic unlocking mechanism 134 to drive the movable part 114 to move along the first direction Z through magnetic force, so that the blocking part 120 cancels the restriction on the movable part 114 to move in the direction away from the second part.

[0061] When closing the door, the blocking member 120 contacts the movable member 114, driving the movable member 114 in a first direction until the door panel 220 is closed. The movable member 114 then falls downward under its own weight, and the blocking member 120 restricts the movable member 114 from moving away from the cabinet body 210. The self-locking assembly 110 has a simple structure. Through the interaction of the movable member 114's own weight and the blocking member 120, the cabinet door automatically closes without requiring any additional user intervention. The closing action is simple and energy-efficient.

[0062] By providing unlocking assembly 130, when the door is opened, sensing module 131 detects the unlocking signal and controls the magnetic unlocking module to magnetically drive movable member 114 in a first direction. Blocking member 120 removes the restriction on movable member 114, allowing the door to open. Unlocking assembly 130 has a simple structure and opens door panel 220 through a simple magnetic action, eliminating the need for additional components such as motors and gears. This helps reduce costs and energy consumption, and is easy to install and operate.

[0063] The above description is only a partial implementation of the embodiments of the present application and does not constitute any form of limitation to the application. The protection scope of the embodiments of the present application is not limited thereto. Any simple modifications, equivalent changes and modifications that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the embodiments of the present application should be covered within the protection scope of the embodiments of the present application.

Claims

1. A self-locking device (100), characterized in that: The self-locking device (100) is used to achieve locking between a first component and a second component that are relatively movable, and the self-locking device (100) comprises: A self-locking assembly (110) is used to be mounted on the first component, the self-locking assembly (110) includes a fixed frame (111) and a movable member (114), the fixed frame (111) has a first direction (Z), and the movable member (114) is slidably mounted on the fixed frame (111) along the first direction (Z); a blocking member (120) mounted on the second component, the blocking member (120) being used to drive the movable member (114) to move along the first direction (Z) as the first component moves toward the second component; when the movable member (114) moves to a side away from the first component relative to the blocking member (120), the movable member (114) moves in a direction opposite to the first direction (Z) under the action of a driving force, so that the blocking member (120) restricts the movable member (114) from moving in a direction away from the second component; An unlocking assembly (130) comprises a sensing module (131) and a magnetic unlocking mechanism (134), wherein the sensing module (131) is communicatively connected to the magnetic unlocking mechanism (134), and the sensing module (131) is used to sense an identification signal to control the magnetic unlocking mechanism (134) to drive the movable part (114) to move along the first direction (Z) by magnetic force, so that the movable part (114) is configured to break away from the restriction of the blocking part (120) and can move in a direction away from the second part.

2. The self-locking device (100) according to claim 1, characterized in that: The magnetic unlocking mechanism (134) is arranged on the first component, and the magnetic unlocking mechanism (134) is arranged on a side of the fixing frame (111) away from the movable part (114) in the first direction (Z).

3. The self-locking device (100) according to claim 1, characterized in that The magnetic unlocking mechanism includes an inner core (135) and a coil (136). The inner core (135) and the movable part (114) are both made of ferromagnetic materials. The inner core (135) is installed on a side of the fixing frame (111) away from the movable part (114) in the first direction (Z). The coil (136) is wound around the outer periphery of the inner core (135). The coil (136) is connected to the induction module (131). When the coil (136) is powered on, it magnetizes the inner core (135) to attract the movable part (114) to move along the first direction (Z); when the coil (136) is powered off, the movable part (114) is reset at least under the action of its own gravity.

4. The self-locking device (100) according to claim 1, characterized in that: The sensing module (131) is installed on the first component, and the sensing module (131) is arranged on a side of the magnetic unlocking mechanism (134) away from the fixing frame (111).

5. The self-locking device (100) according to claim 1, characterized in that: The fixing bracket (111) is provided with a receiving cavity (112) inside, and the movable member (114) is slidably installed in the receiving cavity (112); a sliding groove (113) is formed on the fixing bracket (111), the sliding groove (113) extends along the first direction (Z), the sliding groove (113) is communicated with the receiving cavity (112), the self-locking component (110) further includes a sliding member (116), the movable member (114) is arranged on the sliding member (116), the sliding member (116) is movably embedded in the sliding groove (113), and the sliding member (116) and the sliding groove (113) cooperate to guide the movable member (114) to move along the first direction (Z).

6. The self-locking device (100) according to claim 5, characterized in that: The fixing bracket (111) further has a second direction (X) and a third direction (Y), the first direction (Z), the second direction (X) and the third direction (Y) are perpendicular to each other in pairs, and the sliding groove (113) penetrates through the fixing bracket (111) along the second direction (X); The self-locking component (110) further includes a limit pin (117), the limit pin (117) is arranged on the sliding member (116), and the limit pin (117) is located outside the fixing bracket (111) away from the movable member (114) in the second direction (X); The limit pin (117) has a first width W1 in the third direction (Y), the sliding groove (113) has a second width W2 in the third direction (Y), and the first width W1 and the second width W2 satisfy W1 > W2.

7. The self-locking device (100) according to claim 6, characterized in that: The limit pin (117) is configured to be able to rotate relative to the fixing bracket (111) synchronously with the sliding member (116), the limit pin (117) has a first height H1 in the first direction (Z), the sliding groove (113) has a second height H2 in the first direction (Z), and the first height H1 and the second height H2 satisfy H1 < H2, and W1 < H2, H1 < W2.

8. The self-locking device (100) according to claim 1, characterized in that: One side of the movable member (114) facing the blocking member (120) is provided with an inclined surface (115), and the side of the inclined surface (115) close to the blocking member (120) is inclined towards the side close to the magnetic attraction unlocking mechanism (134) relative to the horizontal plane.

9. The self-locking device (100) according to claim 1, characterized in that: The sensing module (131) includes a power supply (132) and a control board (133), the power supply (132) supplies power to the control board (133), the control board (133) is connected to the magnetic attraction unlocking mechanism (134), and an identification module (140) is connected to the control board (133), and the identification module (140) is used to identify the identification signal issued by the user.

10. A safe (200), characterized in that: It includes a cabinet body (210), a cabinet door (220) and a self-locking device (100), the self-locking device (100) is used to realize the locking between the cabinet body (210) and the cabinet door (220), and the self-locking device (100) includes: A self-locking assembly (110) is installed on the cabinet door (220), the self-locking assembly (110) comprising a fixed frame (111) and a movable member (114), the fixed frame (111) having a first direction (Z), and the movable member (114) is slidably installed on the fixed frame (111) along the first direction (Z); a blocking member (120) mounted on the cabinet body (210), the blocking member (120) being used to drive the movable member (114) to move along the first direction (Z) as the cabinet door (220) moves toward the cabinet body (210); when the movable member (114) moves to a side away from the cabinet door (220) relative to the blocking member (120), the movable member (114) moves in a direction opposite to the first direction (Z) under the action of a driving force, so that the blocking member (120) restricts the movable member (114) from moving in a direction away from the cabinet body (210); An unlocking assembly (130) comprises a sensing module (131) and a magnetic unlocking mechanism (134), wherein the sensing module (131) is communicatively connected to the magnetic unlocking mechanism (134), and the sensing module (131) is used to identify a signal to control the magnetic unlocking mechanism (134) to drive the movable member (114) to move along the first direction (Z) by magnetic force, so that the movable member (114) is configured to break away from the restriction of the blocking member (120) and can move in a direction away from the cabinet (210).

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