Locking device and its application

Abstract

The present application relates to a locking device and its application, including: a female buckle seat, a movable cavity is arranged in the female buckle seat, and a socket is arranged at one end of the female buckle seat; a lock tongue, the lock tongue is installed in the movable cavity, and one end of the lock tongue is hinged to the end of the female buckle seat away from the socket; a male buckle seat, under the automatic driving of an external force, one end of the male buckle seat can be inserted into the movable cavity from the socket to form a self-locking structure with the end of the lock tongue away from the hinge, and under the automatic driving of another external force, the lock tongue rotates to automatically unlock the self-locking structure; and a manual unlocking component, the manual unlocking component is installed on the female buckle seat, and the manual unlocking component is used to drive the lock tongue to rotate to unlock the self-locking structure. The present application has the following expected technical effects: it integrates the three functions of automatic locking, automatic unlocking, and manual unlocking, and the whole structure is simple and firm, which indirectly improves the work efficiency and provides a better user experience.

Description

Technical Field

[0001] The present application relates to the technical field of locks, and in particular to a lock device and its application. Background Art

[0002] As an object to connect two objects, lock buckles are widely used in people's daily life. Lock buckles are generally composed of a female buckle and a male buckle. When the male buckle is inserted into the female buckle, the lock tongue in the female buckle connects with the male buckle to fix the two objects together. When the two objects need to be separated, the lock buckle and the male buckle are separated by external force, and then the male buckle is pulled out from the female buckle.

[0003] The locking structure of the existing lock is complicated, and the process of separating the lock and the male buckle is cumbersome. For example, multiple locks are generally required to lock the box door on equipment such as a car box or a container. When unlocking the lock, the user is generally required to operate manually, and multiple people are required to unlock all the locks at the same time to open the box door. It is difficult to unlock automatically, which indirectly leads to low work efficiency and poor user experience. Summary of the invention

[0004] The present application provides a locking device and its application to improve the following technical problems:

[0005] The locking structure of the existing lock is complicated, and the process of separating the lock and the male buckle is cumbersome. When unlocking the lock, the user is generally required to operate manually, and multiple people are required to unlock all the locks at the same time to achieve the purpose of opening. It is difficult to unlock automatically, which indirectly leads to low work efficiency and poor user experience.

[0006] In a first aspect, the present application provides a locking device, which adopts the following technical solution:

[0007] A locking device, comprising:

[0008] A female buckle seat, wherein a movable cavity is arranged inside the female buckle seat, and a socket is arranged at one end of the female buckle seat;

[0009] A lock tongue, the lock tongue being installed in the movable cavity, one end of the lock tongue being hinged to the end of the female buckle seat away from the socket;

[0010] A male buckle seat, under the automatic driving of an external force, one end of the male buckle seat can be inserted into the movable cavity from the socket to form a self-locking structure with the end of the lock tongue away from the hinge, and under the automatic driving of another external force, the lock tongue rotates to automatically unlock the self-locking structure; and

[0011] A manual unlocking component is installed on the female buckle seat, and the manual unlocking component is used to drive the lock tongue to rotate to unlock the self-locking structure.

[0012] By adopting the above technical solution, the male buckle seat can be automatically driven by external force and inserted into the socket to form a self-locking structure in the movable cavity and between the end of the lock tongue to prevent the female buckle seat and the male buckle seat from separating; the lock tongue can be automatically driven to rotate by external force and automatically unlock the self-locking structure, and then the male buckle seat is driven to reset, so that the female buckle seat and the male buckle seat can be separated; at the same time, a manual unlocking component is added to manually unlock the self-locking structure, so the locking device of the above design integrates three functions: automatic locking, automatic unlocking, and manual unlocking. The whole structure is simple and firm, which indirectly improves work efficiency and provides a better user experience.

[0013] Optionally, the self-locking structure includes: a self-locking hole provided at the end of the male buckle seat and a self-locking block provided on the end of the lock tongue away from the hinge, the self-locking block is provided with a sloped surface on the side close to the male buckle seat, and the female buckle seat is provided with an elastic sheet, and during the process of gradually inserting the end of the male buckle seat from the socket, the sloped surface is gradually squeezed to drive the lock tongue to rotate and squeeze the elastic sheet, and after the male buckle seat is inserted into place, the lock tongue is driven by the elastic sheet until the self-locking block is engaged in the self-locking hole to achieve the purpose of self-locking.

[0014] By adopting the above technical scheme, the self-locking block and the self-locking hole cooperate with each other to achieve the locking effect, and in the process of the self-locking block being completely inserted into the self-locking hole, the inclined surface will convert the thrust of the end of the male buckle seat into the pressure of the lock tongue squeezing the elastic sheet, and then the elastic sheet is subsequently driven by the elastic restoring force, and the lock tongue has a reset tendency, so that the self-locking block can be smoothly inserted into the self-locking hole. The self-locking structure designed above is simple and firm in structure, and has a good locking effect.

[0015] Optionally, the elastic sheet is provided with an avoidance hole arranged corresponding to the self-locking block, the avoidance hole is arranged in an isosceles trapezoid, and the end of the locking tongue provided with the self-locking block is arranged in an isosceles trapezoid adapted to the avoidance hole.

[0016] By adopting the above technical solution, when the lock tongue is squeezed and rotated by the end of the male buckle seat, the end of the lock tongue with the self-locking block will rotate into the avoidance hole to free up more space for the lock tongue to rotate, and it is beneficial for the lock tongue to squeeze the elastic sheet, so that the self-locking block can be smoothly inserted into the self-locking hole.

[0017] Optionally, an automatic unlocking hole is also provided on the female buckle seat, and the automatic unlocking hole and the self-locking block are arranged correspondingly.

[0018] By adopting the above technical solution, the automatic unlocking hole facilitates the external automatic driving force to be smoothly applied to the self-locking block, and then facilitates the self-locking block to drive the lock tongue to rotate, thereby quickly achieving the purpose of automatic unlocking.

[0019] Optionally, a plurality of card blocks are provided on both sides of the elastic sheet, and a plurality of card slots are provided on both sides of the female buckle seat, the card blocks and the card slots are arranged correspondingly, and the card blocks are fixed in the card slots by card connection.

[0020] By adopting the above technical solution, the card block and the card slot cooperate with each other, so that the elastic sheet and the female buckle seat can be firmly connected, and the above installation method is easier to assemble.

[0021] Optionally, a limiting groove is provided on the female buckle seat, and a limiting block is provided on the locking tongue. When the locking tongue rotates in the movable cavity, the limiting block is restricted in the limiting groove.

[0022] By adopting the above technical solution, the limiting groove and the limiting block cooperate with each other, which is conducive to the stable rotation of the lock tongue in the movable cavity, and the entire structure is more firm and stable and not easy to loosen.

[0023] Optionally, the female buckle seat is provided with a guide plate at the socket, and an arc-shaped guide surface is provided on the inner side of the guide plate, and before the end of the male buckle seat is inserted into the socket, the arc-shaped guide surface is used to abut against the end of the male buckle seat.

[0024] By adopting the above technical solution, the arc-shaped guide surface designed on the guide plate can quickly guide the end of the male buckle seat into the socket, which is conducive to the precise docking of the female buckle seat and the male buckle seat.

[0025] Optionally, the manual unlocking assembly includes: a first rotating shaft, a handle and a first limiting plate, one end of the first rotating shaft is connected to the handle and the two form an L shape, two ends of the first rotating shaft extend from two sides of the female buckle seat, two ends of the first rotating shaft are provided with first ring grooves, the first limiting plate is clamped in the first ring groove and abuts against the outer side surface of the female buckle seat, an extrusion block is provided on the first rotating shaft, when the handle drives the first rotating shaft to rotate, the extrusion block abuts against the lock tongue and drives the lock tongue to rotate.

[0026] By adopting the above technical solution, the staff can drive the first rotating shaft to rotate through the handle, and then when the first rotating shaft rotates, the extrusion block can drive the lock tongue to rotate, thereby stably achieving the purpose of manual unlocking. At the same time, the two first limit plates can make the first rotating shaft and the female buckle seat firmly connected, not easy to loosen, and assembly and disassembly are relatively convenient.

[0027] Optionally, a second rotating shaft and a second limiting plate are provided at the end of the female buckle seat, two ends of the second rotating shaft extend from both sides of the female buckle seat, two ends of the second rotating shaft are provided with second ring grooves, the first limiting plate is clamped in the second ring groove and abuts against the outer side surface of the female buckle seat, and the end of the lock tongue is provided with a through hole for the second rotating shaft to pass through.

[0028] By adopting the above technical solution, the two second limiting plates can make the second rotating shaft and the female buckle seat firmly connected and not easy to loosen, thereby ensuring stable rotation between the lock tongue and the female buckle seat, and it is convenient to assemble and disassemble.

[0029] In a second aspect, the present application provides an application of a locking device, which adopts the following technical solution:

[0030] An application of the locking device as described above comprises:

[0031] a first connector;

[0032] A first driving member, wherein the first driving member is mounted on the first connecting body, the male buckle seat is connected to the first driving member, and the first driving member is used to automatically drive the end of the male buckle seat to be inserted into the socket to achieve the purpose of self-locking;

[0033] A second connecting body, the female buckle seat is fixedly mounted on the second connecting body; and

[0034] A second driving member is installed on the second connecting body, and the second driving member is used to automatically drive the locking tongue to rotate so as to automatically unlock the self-locking structure.

[0035] By adopting the above technical solution, the locking device can realize the connection and separation between the first connector and the second connector. At the same time, the first driving member can automatically drive the end of the male buckle seat to insert into the socket and achieve the purpose of automatic locking. The second driving member can automatically drive the lock tongue to rotate and achieve the purpose of automatic unlocking, which indirectly improves work efficiency and provides a better user experience.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. The male buckle seat can be automatically driven by external force and inserted into the socket to form a self-locking structure in the active cavity and between the end of the lock tongue to prevent the female buckle seat and the male buckle seat from separating; the lock tongue can be automatically driven by external force to rotate and automatically unlock the self-locking structure, and then the male buckle seat is driven to reset, so that the female buckle seat and the male buckle seat can be separated; at the same time, a manual unlocking component is added to manually unlock the self-locking structure, so the lock device of the above design integrates three functions: automatic locking, automatic unlocking, and manual unlocking. The whole structure is simple and firm, which indirectly improves work efficiency and provides a better user experience;

[0038] 2. When the lock tongue is squeezed and rotated by the end of the male buckle seat, the end of the lock tongue with the self-locking block will rotate into the avoidance hole to make more space for the lock tongue to rotate, and it is beneficial for the lock tongue to squeeze the elastic sheet, so that the self-locking block can be smoothly inserted into the self-locking hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a schematic structural diagram of the locking device of an embodiment of the present application from a front view.

[0041] Figure 2 It is a schematic structural diagram of the locking device of an embodiment of the present application from a back view.

[0042] Figure 3 It is a schematic diagram of the exploded structure of the locking device of an embodiment of the present application.

[0043] Figure 4 It is a structural schematic diagram of the application of the locking device of an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 101, first connector; 102, first drive member; 103, second connector; 104, second drive member; 105, locking device;

[0046] 1. Female buckle seat; 11. Socket; 12. Elastic sheet; 121. Avoidance hole; 122. Card block; 13. Automatic unlocking hole; 14. Card slot; 15. Limiting slot; 16. Guide plate; 2. Lock tongue; 21. Self-locking block; 22. Inclined surface; 23. Limiting block; 3. Male buckle seat; 31. Self-locking hole; 4. Manual unlocking assembly; 41. First rotating shaft; 411. Extrusion block; 42. Handle; 43. First limiting piece; 5. Second rotating shaft; 6. Second limiting piece. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0049] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] The following is combined with Figure 1-3 This application is described in further detail.

[0052] The present application embodiment discloses a locking device. Figures 1 to 3 , the locking device 105 comprises:

[0053] A female buckle seat 1, wherein a movable cavity is provided in the female buckle seat 1, a socket 11 is provided at one end of the female buckle seat 1, the female buckle seat 1 is mainly made of a steel plate, and flanges are provided on both sides of the female buckle seat 1, and two mounting holes are provided on each side of the flange;

[0054] A lock tongue 2 is installed in the movable cavity, and one end of the lock tongue 2 is hinged to the end of the female buckle seat 1 away from the socket 11;

[0055] The male buckle seat 3, under the automatic driving of an external force, one end of the male buckle seat 3 can be inserted into the movable cavity from the socket 11 to form a self-locking structure with the end of the lock tongue 2 away from the hinge. Under the automatic driving of another external force, the lock tongue 2 rotates to automatically unlock the self-locking structure. The male buckle seat 3 is made of steel plate, and two mounting holes are respectively provided on both sides of the male buckle seat 3; and,

[0056] The manual unlocking component 4 is installed on the female buckle seat 1, and the manual unlocking component 4 is used to drive the lock tongue 2 to rotate to unlock the self-locking structure.

[0057] The self-locking structure includes: a self-locking hole 31 provided at the end of the male buckle seat 3 and a self-locking block 21 provided on the end of the lock tongue 2 away from the hinge. The self-locking block 21 is provided with a slope 22 on the side close to the male buckle seat 3, and the female buckle seat 1 is provided with an elastic sheet 12. During the gradual insertion of the end of the male buckle seat 3 from the socket 11, the slope 22 is gradually squeezed to drive the lock tongue 2 to rotate and squeeze the elastic sheet 12. After the male buckle seat 3 is inserted into place, the lock tongue 2 is driven by the elastic sheet 12 until the self-locking block 21 is engaged in the self-locking hole 31 to achieve the purpose of self-locking.

[0058] The self-locking block 21 and the self-locking hole 31 cooperate with each other to achieve a locking effect. In the process of the self-locking block 21 being completely inserted into the self-locking hole 31, the inclined surface 22 will convert the thrust of the end of the male buckle seat 3 into pressure of the lock tongue 2 squeezing the elastic sheet 12, and then the elastic sheet 12 is subsequently driven by the elastic restoring force, and the lock tongue 2 has a reset tendency, so that the self-locking block 21 can be smoothly inserted into the self-locking hole 31. The self-locking structure designed above is simple and firm in structure, and has a good locking effect.

[0059] The elastic sheet 12 is provided with an avoidance hole 121 arranged corresponding to the self-locking block 21 . The avoidance hole 121 is arranged in an isosceles trapezoid. The end of the lock tongue 2 provided with the self-locking block 21 is arranged in an isosceles trapezoid matching the avoidance hole 121 .

[0060] When the lock tongue 2 is squeezed and rotated by the end of the male buckle seat 3, the end of the lock tongue 2 provided with the self-locking block 21 will rotate into the avoidance hole 121 to free up more space for the lock tongue 2 to rotate, and it is beneficial for the lock tongue 2 to squeeze the elastic sheet 12, so that the self-locking block 21 can be smoothly inserted into the self-locking hole 31.

[0061] An automatic unlocking hole 13 is also provided on the female buckle seat 1, and the automatic unlocking hole 13 and the self-locking block 21 are arranged correspondingly. The automatic unlocking hole 13 facilitates the external automatic driving force to be smoothly applied to the self-locking block 21, and then facilitates the self-locking block 21 to drive the lock tongue 2 to rotate, thereby quickly achieving the purpose of automatic unlocking.

[0062] Two clamping blocks 122 are respectively arranged on both sides of the elastic sheet 12, and two clamping slots 14 are respectively arranged on both sides of the female buckle seat 1. The clamping blocks 122 and the clamping slots 14 are arranged correspondingly, and the clamping blocks 122 are clamped and fixed in the clamping slots 14. The clamping blocks 122 and the clamping slots 14 cooperate with each other, so that the elastic sheet 12 and the female buckle seat 1 are firmly connected, and the above-mentioned installation method is easier to assemble.

[0063] A limiting groove 15 is provided on the female buckle seat 1, and the limiting groove 15 is in a rectangular shape. A limiting block 23 is provided on the lock tongue 2, and the limiting block 23 is in a square shape. When the lock tongue 2 rotates in the movable cavity, the limiting block 23 is restricted in the limiting groove 15. The limiting groove 15 and the limiting block 23 cooperate with each other, which is conducive to the stable rotation of the lock tongue 2 in the movable cavity. The whole structure is more firm and stable and not easy to loosen.

[0064] The female buckle seat 1 is integrally formed with a guide plate 16 at the socket 11 , and an arc-shaped guide surface is provided on the inner side of the guide plate 16 . Before the end of the male buckle seat 3 is inserted into the socket 11 , the arc-shaped guide surface is used to abut against the end of the male buckle seat 3 .

[0065] The arc-shaped guide surface designed on the guide plate 16 can quickly guide the end of the male buckle seat 3 into the socket 11, which is conducive to the precise docking of the female buckle seat 1 and the male buckle seat 3.

[0066] The manual unlocking assembly 4 includes: a first rotating shaft 41, a handle 42 and a first limiting piece 43. One end of the first rotating shaft 41 is connected to the handle 42 and the two form an L shape. The two ends of the first rotating shaft 41 extend from the two sides of the female buckle seat 1. The two ends of the first rotating shaft 41 are provided with a first ring groove. The first limiting piece 43 is clamped in the first ring groove and abuts against the outer side surface of the female buckle seat 1. The first rotating shaft 41 is provided with an extrusion block 411. When the handle 42 drives the first rotating shaft 41 to rotate, the extrusion block 411 abuts against the lock tongue 2 and drives the lock tongue 2 to rotate.

[0067] The staff can drive the first rotating shaft 41 to rotate through the handle 42, and then when the first rotating shaft 41 rotates, the extrusion block 411 can drive the lock tongue 2 to rotate, thereby stably achieving the purpose of manual unlocking. At the same time, the two first limiting plates 43 can make the first rotating shaft 41 and the female buckle seat 1 firmly connected, not easy to loosen, and convenient to assemble and disassemble.

[0068] A second rotating shaft 5 and a second limiting plate 6 are provided at the end of the female buckle seat 1, and both ends of the second rotating shaft 5 extend from both sides of the female buckle seat 1. Second ring grooves are provided at both ends of the second rotating shaft 5. The first limiting plate 43 is clamped in the second ring groove and abuts against the outer side surface of the female buckle seat 1. The end of the lock tongue 2 is provided with a through hole for the second rotating shaft 5 to pass through.

[0069] The two second limiting pieces 6 can make the second rotating shaft 5 and the female buckle seat 1 firmly connected and not easy to loosen, thereby ensuring the stable rotation between the locking tongue 2 and the female buckle seat 1, and the assembly and disassembly are relatively convenient.

[0070] The entire thickness of the locking device is relatively thin, approximately between 1 and 2 centimeters, and the space occupied is smaller, so that the locking device of the above design can be installed in a relatively narrow space.

[0071] A locking device according to an embodiment of the present application has the following expected technical effects:

[0072] The male buckle seat 3 can be automatically driven by external force and inserted into the socket 11 to form a self-locking structure in the movable cavity and between the end of the lock tongue 2 to prevent the female buckle seat 1 and the male buckle seat 3 from separating; the lock tongue 2 can be automatically driven to rotate by external force and automatically unlock the self-locking structure, and then the male buckle seat 3 is driven to reset, so that the female buckle seat 1 and the male buckle seat 3 can be separated; at the same time, a manual unlocking component 4 is added to manually unlock the self-locking structure, so the locking device 105 designed above integrates three functions: automatic locking, automatic unlocking, and manual unlocking. The whole structure is simple and firm, which indirectly improves work efficiency and provides a better user experience.

[0073] The present application also discloses an application of a locking device. Figure 3 and Figure 4 ,include:

[0074] A first connector 101;

[0075] A first driving member 102, which is mounted on the first connecting body 101, and the male buckle seat 3 is connected to the first driving member 102. The first driving member 102 is used to automatically drive the end of the male buckle seat 3 to be inserted into the socket 11 and achieve the purpose of self-locking. The first driving member 102 is specifically a cylinder in this embodiment;

[0076] The second connecting body 103, the female buckle seat 1 is fixedly mounted on the second connecting body 103; and,

[0077] The second driving member 104 is installed on the second connecting body 103. The second driving member 104 is used to automatically drive the lock tongue 2 to rotate to automatically unlock the self-locking structure. The second driving member 104 is specifically a cylinder in this embodiment. The second driving member 104 and the automatic unlocking hole 13 are arranged correspondingly.

[0078] The application of a locking device according to the embodiment of the present application has the following expected technical effects:

[0079] The locking device 105 can realize the connection and separation between the first connecting body 101 and the second connecting body 103. At the same time, the first driving member 102 can automatically drive the end of the male buckle seat 3 to be inserted into the socket 11 and realize the purpose of automatic locking. The second driving member 104 can automatically drive the lock tongue 2 to rotate and realize the purpose of automatic unlocking, which indirectly improves work efficiency and provides a better user experience.

[0080] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A locking device, characterized in that: include: A female buckle seat (1), wherein a movable cavity is arranged inside the female buckle seat (1), and a socket (11) is arranged at one end of the female buckle seat (1); A locking tongue (2), wherein the locking tongue (2) is installed in the movable cavity, and one end of the locking tongue (2) is hinged to an end of the female buckle seat (1) away from the socket (11); A male buckle seat (3), under the automatic driving of an external force, one end of the male buckle seat (3) can be inserted into the movable cavity from the socket (11) to form a self-locking structure with the end of the lock tongue (2) away from the hinge, and under the automatic driving of another external force, the lock tongue (2) rotates to automatically unlock the self-locking structure; and A manual unlocking component (4), the manual unlocking component (4) is installed on the female buckle seat (1), and the manual unlocking component (4) is used to drive the lock tongue (2) to rotate to unlock the self-locking structure.

2. The locking device according to claim 1, characterized in that: The self-locking structure comprises: a self-locking hole (31) provided at the end of the male buckle seat (3) and a self-locking block (21) provided on the end of the lock tongue (2) away from the hinge; a slope (22) is provided on the side of the self-locking block (21) close to the male buckle seat (3); the female buckle seat (1) is provided with an elastic sheet (12); during the process of the end of the male buckle seat (3) being gradually inserted into the socket (11), the slope (22) is gradually squeezed to drive the lock tongue (2) to rotate and squeeze the elastic sheet (12); after the male buckle seat (3) is inserted into place, the lock tongue (2) is driven by the elastic sheet (12) until the self-locking block (21) is engaged in the self-locking hole (31), thereby achieving the purpose of self-locking.

3. The locking device according to claim 2, characterized in that: The elastic sheet (12) is provided with an avoidance hole (121) arranged corresponding to the self-locking block (21); the avoidance hole (121) is arranged in an isosceles trapezoid; and the end of the locking tongue (2) provided with the self-locking block (21) is arranged in an isosceles trapezoid matching the avoidance hole (121).

4. The locking device according to claim 2, characterized in that: An automatic unlocking hole (13) is also provided on the female buckle seat (1), and the automatic unlocking hole (13) and the self-locking block (21) are arranged correspondingly.

5. The locking device according to claim 2, characterized in that: A plurality of clamping blocks (122) are arranged on both sides of the elastic sheet (12), and a plurality of clamping slots (14) are arranged on both sides of the female buckle seat (1). The clamping blocks (122) and the clamping slots (14) are arranged correspondingly, and the clamping blocks (122) are clamped and fixed in the clamping slots (14).

6. The locking device according to claim 1, characterized in that: A limiting groove (15) is provided on the female buckle seat (1), and a limiting block (23) is provided on the locking tongue (2); when the locking tongue (2) rotates in the movable cavity, the limiting block (23) is limited in the limiting groove (15).

7. The locking device according to claim 1, characterized in that: The female buckle seat (1) is provided with a guide plate (16) at the socket (11), and an arc-shaped guide surface is provided on the inner side of the guide plate (16). Before the end of the male buckle seat (3) is inserted into the socket (11), the arc-shaped guide surface is used to abut against the end of the male buckle seat (3).

8. The locking device according to claim 1, characterized in that: The manual unlocking assembly (4) comprises: a first rotating shaft (41), a handle (42) and a first limiting piece (43); one end of the first rotating shaft (41) is connected to the handle (42) and the two are formed in an L shape; two ends of the first rotating shaft (41) extend from two sides of the female buckle seat (1); two ends of the first rotating shaft (41) are provided with first ring grooves; the first limiting piece (43) is clamped in the first ring groove and abuts against the outer side surface of the female buckle seat (1); an extrusion block (411) is provided on the first rotating shaft (41); when the handle (42) drives the first rotating shaft (41) to rotate, the extrusion block (411) abuts against the lock tongue (2) and drives the lock tongue (2) to rotate.

9. The locking device according to claim 8, characterized in that: A second rotating shaft (5) and a second limiting plate (6) are provided at the end of the female buckle seat (1); two ends of the second rotating shaft (5) extend from two sides of the female buckle seat (1); two ends of the second rotating shaft (5) are provided with second annular grooves; the first limiting plate (43) is clamped in the second annular groove and abuts against the outer side surface of the female buckle seat (1); and a through hole for the second rotating shaft (5) to pass through is provided at the end of the locking tongue (2).

10. An application of the locking device according to any one of claims 1 to 9, characterized in that: include: A first connector (101); a first driving member (102), the first driving member (102) being mounted on the first connecting body (101), the male buckle seat (3) being connected to the first driving member (102), the first driving member (102) being used for automatically driving the end of the male buckle seat (3) to be inserted into the socket (11) and achieving the purpose of self-locking; A second connecting body (103), the female buckle seat (1) being fixedly mounted on the second connecting body (103); and A second driving member (104), the second driving member (104) is mounted on the second connecting body (103), and the second driving member (104) is used to automatically drive the lock tongue (2) to rotate so as to automatically unlock the self-locking structure.

Images