Self-releasing buckle device

Abstract

The utility model provides a kind of self-unloading buckle device, belong to hoisting equipment technical field.The technical scheme of self-unloading buckle device is, including unloading buckle main part, unloading buckle main part includes hanging ring part, the tail end of hanging ring part is equipped with two opposing buckle holes, further including pin shaft body and self-unloading mechanism, self-unloading mechanism includes mounting seat, drive assembly and guide sleeve, guide sleeve and mounting seat are elastically connected by first elastic member, pin shaft body is movably connected in guide sleeve, drive assembly is connected with pin shaft body, drive pin shaft body moves along self axial direction and is cooperated with two buckle holes or separates, first elastic member can be elastically deformed along the direction perpendicular to pin shaft body axial direction.The utility model is by using first elastic member elastic connection between guide sleeve and mounting seat, adjust the position of guide sleeve and pin shaft body, ensure that pin shaft body and buckle hole keep same axis, improve the centring accuracy of pin shaft and buckle hole, improve the security and connection reliability of operation.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, and in particular to a self-detaching buckle device. Background Technology

[0002] In various operational scenarios involving cargo lifting and equipment connection, shackles are widely used as key connecting components, and their performance directly affects the safety and efficiency of the operation. Shackles offer advantages such as improved lifting safety, adaptability to different lifting angles, and ease of installation and maintenance. Pin-hole shackles are easy to install and perform well in harsh environments, unlike threaded shackles which are susceptible to rust and corrosion. Early traditional shackles mostly used self-folding hook structures, which are essentially similar to cantilever beam structures. In lifting operations, self-folding hook structures are difficult to precisely adapt to the special positions and stress requirements of the lifting points, often leading to uneven stress on the equipment during lifting, causing swaying or even overturning, seriously threatening operational safety and failing to meet the usage requirements in various harsh environments. Therefore, current shackles mostly adopt a pin-insertion connection method to construct a simply supported beam structure, thereby improving the stability and reliability of the connection. However, this structure is prone to displacement between the pin and the buckle hole when the pin is under load, making it difficult to keep them on the same axis. When the pin needs to be reinserted later, manual alignment is often required, making it difficult to align the pin and buckle hole, resulting in a difficult insertion process, seriously affecting work efficiency, and even causing additional damage to the pin and buckle hole due to repeated insertion attempts, further reducing the service life and connection strength of the shackle, and threatening work safety. Utility Model Content

[0003] This invention addresses the problem that current pin insertion hole structures are prone to misalignment when the pin is under stress, making it difficult to align the pin and hole when re-inserting, thus affecting work efficiency. A self-release buckle device is proposed to solve this problem.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a self-release shackle device, including a shackle body, which includes a hanging ring portion with two opposing buckle holes at the tail end. The device also includes a pin and a self-release mechanism. The shackle body has a working chamber on one side of the hanging ring portion. The pin and the self-release mechanism are both disposed in the working chamber. The self-release mechanism includes a mounting base, a drive assembly, and a guide sleeve. The mounting base is fixedly connected to the side wall of the working chamber. The guide sleeve is elastically connected to the mounting base through a first elastic element. The pin is movably connected inside the guide sleeve. The drive assembly is connected to the pin to drive the pin to move along its own axial direction to engage or disengage with the two buckle holes, thereby closing or opening the hanging ring portion. The first elastic element can elastically deform in a direction perpendicular to the axial direction of the pin.

[0005] Furthermore, the first elastic element includes a limiting rod and a first spring. The mounting base is provided with a limiting through hole extending in a direction perpendicular to the axial direction of the pin body. One end of the limiting rod is provided with a connecting part, and the other end is provided with a limiting protrusion. The diameter of the limiting protrusion is larger than the diameter of the limiting through hole. The connecting part of the limiting rod passes through the limiting through hole and connects to the side wall of the guide sleeve. The first spring is sleeved on the limiting rod and is located between the limiting protrusion and the mounting base. Furthermore, the connecting part includes a first threaded structure, and the side wall of the guide sleeve is provided with a threaded hole that is threaded to engage with the first threaded structure.

[0006] Furthermore, multiple first elastic elements are provided, and the multiple first elastic elements are evenly spaced along the axial direction of the pin body.

[0007] Furthermore, the pin body includes a drive part and a pin part connected in sequence. The pin part can be movably engaged with or disengaged from the snap hole. The extension direction of the drive part intersects the extension direction of the pin part, and the drive part is located on the outer side of the mounting base away from the hanging ring part. The drive assembly is fixedly connected to the mounting base and is connected to the drive part to drive the pin part to move along its own axial direction. Furthermore, the driving component is a push-pull electromagnet structure.

[0008] Furthermore, the pin shaft includes a first section and a second section connected in sequence. The first section can be inserted into or separated from the snap hole, and the second section is connected to the drive unit. The diameter of the first section is larger than the diameter of the second section. The second section is fitted with a second elastic member, which is located between the first section and one end wall of the guide sleeve. When the first section is separated from the snap hole, the second elastic member is in an elastic contraction state.

[0009] Furthermore, the second section has a traction line at the end furthest from the first section, which extends to the outside of the working chamber so that an external force can be applied to the traction line to drive the pin body to move along its own axis.

[0010] Furthermore, an inspection hole is provided on the side of the shackle body opposite to the working chamber, and the inspection hole communicates with the buckle hole away from the working chamber.

[0011] Furthermore, a balancing space is provided on one side of the shackle body relative to the working chamber, and a counterweight is provided in the balancing space.

[0012] As can be seen from the above technical solutions, the advantages of this utility model are: This invention uses a first elastic element to elastically connect the guide sleeve and the mounting base, which can automatically adjust the position of the guide sleeve and the pin body, ensuring that the pin body and the buckle hole always remain on the same axis. This improves the alignment accuracy of the pin and the buckle hole, enhances the safety of the operation and the reliability of the connection. At the same time, by driving the pin body to move and insert into the buckle hole through the drive component, the automatic insertion and removal of the pin body is realized, which improves the work efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a partial structural cross-sectional view of the closed hanging ring portion of the pin body in one embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a partial structural cross-sectional view of the pin shaft opening and hanging ring portion in one embodiment of this utility model; Figure 4 This is a right-side structural schematic diagram of the shackle body in one embodiment of the present invention.

[0015] Explanation of key figure labels: 100. Shackle body; 110. Hanging ring; 111. Buckle hole; 120. Working chamber; 130. Inspection hole; 140. Balancing space; 150. Counterweight; 200. Pin shaft; 210. Drive unit; 220. Pin shaft; 221. First section; 222. Second section; 230. Second elastic element; 300. Self-release mechanism; 310. Mounting base; 311. Limiting through hole; 320. Drive assembly; 330. Guide sleeve; 331. Threaded hole; 340. First elastic element; 341. Limiting rod; 342. First spring; 343. Limiting protrusion; 344. Connecting part; 350. Traction line. Detailed Implementation

[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0017] Please see Figures 1-4 A self-release shackle device includes a shackle body 100, which includes a hanging ring portion 110. The hanging ring portion 110 has two opposing buckle holes 111 at its tail end. The device also includes a pin shaft 200 and a self-release mechanism 300. The shackle body 100 has a working chamber 120 on one side of the hanging ring portion 110. The pin shaft 200 and the self-release mechanism 300 are both disposed within the working chamber 120. The self-release mechanism 300 includes a mounting base 310, a drive assembly 320, and a guide sleeve 330. The mounting base 310 is fixedly connected to the side wall of the working chamber 120. The guide sleeve 330 is elastically connected to the mounting base 310 through the first elastic element 340. The pin body 200 is movably connected inside the guide sleeve 330. The drive assembly 320 is connected to the pin body 200 to drive the pin body 200 to move along its own axial direction to engage or disengage with the two buckle holes 111, thereby closing or opening the hanging ring part 110. The first elastic element 340 can elastically deform in a direction perpendicular to the axial direction of the pin body 200.

[0018] In this embodiment, as Figure 1 , Figure 3 , Figure 4As shown, the shackle body 100 includes a hanging ring portion 110, the tail end of which is an open structure, and the tail end of the hanging ring portion 110 is provided with two opposing buckle holes 111, which are coaxially arranged. A working chamber 120 is provided on one side of the shackle body 100, thereby providing space for the installation and movement of the pin shaft 200 and the self-release mechanism 300. The mounting base 310 is a rectangular plate structure, and one end of the mounting base 310 along its length direction is fixedly connected to the inner wall of the working chamber 120. The length direction of the mounting base 310 is consistent with the axial direction of the buckle holes 111. A guide sleeve 330 is provided on the lower side of the mounting base 310, wherein the upper end of the guide sleeve 330 is connected to the mounting base 310 by a first The elastic element 340 provides an elastic connection, and a pin 200 is movably connected inside the guide sleeve 330. The pin 200 is connected to the drive assembly 320, which can drive the pin 200 to move within the guide sleeve 330. The guide sleeve 330 and the pin 200 are coaxially arranged. When hanging is required, the drive assembly 320 drives the pin 200 to move along its own axial direction, so that the pin 200 passes through two buckle holes 111 respectively, thereby closing the hanging ring part 110. When unhanging is required, the drive assembly 320 drives the pin 200 to move in the opposite direction, so that the pin 200 separates from at least one buckle hole 111, thereby opening the hanging ring part 110. In addition, when the pin body 200 is subjected to force and moves downward, the first elastic element 340 between the guide sleeve 330 and the mounting base 310 undergoes elastic deformation. When the force on the pin body 200 is removed, the first elastic element 340 exhibits a reverse elastic force, thereby driving the guide sleeve 330 and the pin body 200 to move upward and adjust, so that the pin body 200 and the buckle hole 111 are repositioned on the same axis, thus facilitating alignment and re-insertion.

[0019] In practical operation, when the hanging ring 110 needs to be closed for connection, the drive assembly 320 drives the pin 200 to move towards the buckle hole 111. During this process, due to factors such as the working environment, the shackle body 100 may experience slight displacement or deformation, causing the buckle hole 111 to change position. The first elastic element 340 elastically deforms in a direction perpendicular to the axial direction of the pin 200, automatically adjusting the position of the guide sleeve 330, thereby ensuring that the pin 200 always maintains the same axis as the buckle hole 111, allowing the pin 200 to be accurately inserted into the buckle hole 111, achieving reliable closure of the hanging ring 110. When it is necessary to disengage the hanging ring 110, the drive assembly 320 drives the pin 200 to move in the opposite direction, separating the pin 200 from the buckle hole 111.

[0020] In the above structure, by using a first elastic element 340 to elastically connect the guide sleeve 330 and the mounting base 310, the positions of the guide sleeve 330 and the pin 200 can be automatically adjusted, ensuring that the pin 200 and the snap hole 111 always remain on the same axis. This greatly improves the alignment accuracy of the pin and the snap hole 111, effectively avoiding loosening or even disengagement caused by different axes during the connection process, thus enhancing operational safety and connection reliability. Simultaneously, by using the drive component 320 to move the pin 200 and engage it with the snap hole 111, automatic insertion and removal of the pin 200 is achieved, eliminating the need for manual operation, improving work efficiency, and avoiding the dangers and inconveniences of manual operation.

[0021] In the specific structure of the first elastic element 340, the first elastic element 340 includes a limiting rod 341 and a first spring 342. The mounting base 310 is provided with a limiting through hole 311 extending in a direction perpendicular to the axial direction of the pin body 200. One end of the limiting rod 341 is provided with a connecting part 344, and the other end is provided with a limiting protrusion 343. The diameter of the limiting protrusion 343 is larger than the diameter of the limiting through hole 311. The connecting part 344 of the limiting rod 341 passes through the limiting through hole 311 and is connected to the side wall of the guide sleeve 330. The first spring 342 is sleeved on the limiting rod 341 and is located between the limiting protrusion 343 and the mounting base 310.

[0022] In this embodiment, as Figure 2 As shown, the limiting rod 341 extends in a direction perpendicular to the axial direction of the guide sleeve 330. The lower end of the limiting rod 341 is a connecting part 344, and the upper end of the limiting rod 341 is provided with a limiting protrusion 343. The mounting base 310 is provided with a limiting through hole 311 extending along the thickness direction of the mounting base 310 at a corresponding position. The limiting rod 341 is movably disposed in the limiting through hole 311. The limiting protrusion 343 at the upper end of the limiting rod 341 is located on the upper side of the mounting base 310, and there is a gap between the limiting protrusion 343 and the mounting base 310. The first spring 342 is sleeved on the limiting rod 341 and is located on the limiting protrusion. Between block 343 and mounting base 310, when the pin 200 moves downward under force, the guide sleeve 330 moves away from the mounting base 310. The limiting rod 341 drives the limiting protrusion 343 to move downward, and the first spring 342 is compressed. The elastic force generated by the spring gradually increases. During this process, the first spring 342 continuously adjusts the force on the guide sleeve 330 through its own elastic deformation, so that the guide sleeve 330 can always automatically adjust its position, ensuring that the pin 200 and the buckle hole 111 remain on the same axis, creating favorable conditions for the pin 200 to be accurately inserted into the buckle hole 111. When it is necessary to disengage the hanging ring 110 and remove the force applied to the pin 200, the first spring 342 elastically extends, thereby driving the guide sleeve 330 and the pin 200 to move upward, gradually returning to the initial position.

[0023] Through the interaction between the limiting rod 341 and the first spring 342, the position of the guide sleeve 330 is automatically adjusted to ensure that the pin 200 and the buckle hole 111 always maintain a highly accurate coaxial alignment, which significantly improves the safety of operation and the reliability of connection. Specifically, such as Figure 2 As shown, the connecting part 344 includes a first threaded structure, and the side wall of the guide sleeve 330 is provided with a threaded hole 331 that is threadedly connected to the first threaded structure. The first threaded structure of the connecting part 344 is typically an external thread machined at the end of the limiting rod 341, and the threaded hole 331 on the side wall of the guide sleeve 330 is an internal thread adapted to the first threaded structure. The depth and diameter of the threaded hole 331 match the first threaded structure on the limiting rod 341. The end of the limiting rod 341 with the first threaded structure is passed through the limiting through hole 311 of the mounting base 310, and then screwed into the threaded hole 331 on the side wall of the guide sleeve 330. This structure facilitates installation and disassembly, improves the efficiency of equipment assembly and maintenance, reduces the labor intensity of operators, and saves time and costs. Meanwhile, since the threaded connection can be adjusted by rotating the limiting rod 341 to adjust its screw-in depth in the guide sleeve 330, when the position of the guide sleeve 330 needs to be fine-tuned, or when the elastic state of the first elastic element 340 needs to be adjusted, it can be achieved simply by rotating the limiting rod 341.

[0024] Furthermore, multiple first elastic elements 340 are provided, and these multiple first elastic elements 340 are evenly spaced along the axial direction of the pin shaft body 200. Each first elastic element 340 consists of a limiting rod 341 and a first spring 342. The evenly distributed multiple first elastic elements 340 can more evenly distribute the various external forces borne by the guide sleeve 330 and the pin shaft body 200 during operation, effectively reducing local stress concentration and making the entire connection structure more stable and reliable.

[0025] In the specific structure of the pin body 200, such as Figure 1 As shown, the pin body 200 includes a drive part 210 and a pin part 220 connected in sequence. The pin part 220 is movably engaged with or disengaged from the snap hole 111. The extending direction of the drive part 210 intersects the extending direction of the pin part 220, and the drive part 210 is located on the outer side of the end of the mounting base 310 away from the hanging ring part 110. The drive assembly 320 is fixedly connected to the mounting base 310 and is connected to the drive part 210 to drive the pin part 220 to move along its own axial direction. The drive assembly 320 is a push-pull electromagnet structure.

[0026] In this embodiment, the extending direction of the drive unit 210 intersects the extending direction of the pin portion 220, generally in a perpendicular or nearly perpendicular state. The drive unit 210 is located on the outer side of the end of the pin portion 220 away from the hanging ring portion 110, thus facilitating connection with the drive assembly 320. The size and shape of the pin portion 220 are adapted to the buckle hole 111, and it can move along its own axial direction under the drive of the drive unit 210, accurately inserting into or pulling out of the buckle hole 111, thereby realizing the closing or opening of the hanging ring portion 110. The drive assembly 320 adopts a push-pull electromagnet structure and is fixedly connected to the mounting base 310. The push-pull electromagnet mainly consists of an iron core, a coil, a push rod, etc. The iron core is located inside the coil. When the coil is energized, it generates a magnetic field, causing the iron core to be subjected to magnetic force and generate axial thrust or pull. The push rod is connected to the iron core and to the drive part 210 of the pin body 200. By controlling the energization and de-energization of the coil and the direction of the current, the extension and retraction of the push rod can be realized, thereby driving the pin part 220 of the pin body 200 to move along its own axis.

[0027] In the above structure, the drive component 320 of the push-pull electromagnet structure can achieve precise drive of the pin 200 through power control, without manual operation. When it is necessary to close or open the hanging ring 110, it is only necessary to control the power on and off of the drive component 320 to quickly and accurately complete the insertion or separation of the pin 220 and the buckle hole 111, which improves work efficiency. The push-pull electromagnet structure is relatively simple and compact, occupies little space, and is easy to install on the mounting base 310, making the overall size of the device smaller and improving the versatility and applicability of the device.

[0028] In addition, the pin portion 220 includes a first segment 221 and a second segment 222 connected in sequence. The first segment 221 can be inserted into or separated from the buckle hole 111. The second segment 222 is connected to the drive portion 210. The diameter of the first segment 221 is larger than the diameter of the second segment 222. The second segment 222 is fitted with a second elastic member 230. The second elastic member 230 is located between the first segment 221 and one end wall of the guide sleeve 330. When the first segment 221 is separated from the buckle hole 111, the second elastic member 230 is in an elastic contraction state.

[0029] In this embodiment, as Figure 1As shown, the pin shaft portion 220 is composed of a first segment 221 and a second segment 222 connected in sequence. The first segment 221 cooperates with the snap hole 111 to complete the insertion or separation operation, and its diameter is larger than that of the second segment 222. The second segment 222 connects the first segment 221 and the drive unit 210, transmitting the power generated by the drive unit 210 to the first segment 221, causing the first segment 221 to move axially. A second elastic element 230 is sleeved on the second segment 222. The second elastic element 230 is a spring structure and is installed between the first segment 221 and one end wall of the guide sleeve 330. When the pin shaft body 200 is in normal working state, i.e., the first segment 221... When segment 221 is inserted into buckle hole 111 to close the hanging ring 110, the second elastic element 230 may be in a natural state or a certain pre-compressed state. When it is necessary to separate the first segment 221 from buckle hole 111, drive assembly 320 drives pin shaft 200 to move as a whole. At this time, the second elastic element 230 will be squeezed and enter an elastic contraction state. When it is necessary to insert the first segment 221 into buckle hole 111, drive assembly 320 drives pin shaft 200 to move in the opposite direction. At this time, the second elastic element 230 elastically extends and applies elastic force to the first segment 221, thereby further helping the first segment 221 to move and insert into buckle hole 111, improving insertion efficiency.

[0030] During the insertion or removal of the first segment 221 of the pin body 200 from the buckle hole 111, a certain impact force is generated. The second elastic element 230 can act as a buffer to reduce damage to components such as the pin body 220, the buckle hole 111, and the drive assembly 320. At the same time, when the first segment 221 separates from the buckle hole 111, the second elastic element 230, which is in an elastically contracted state, stores elastic potential energy. When re-inserting, this elastic potential energy is released, which helps to make the first segment 221 insert into the buckle hole 111 more smoothly and quickly.

[0031] Among them, such as Figure 1 As shown, the second segment 222, located away from the first segment 221, is provided with a traction line 350. The traction line 350 extends to the outside of the working chamber 120, allowing external force to be applied to the traction line 350 to drive the pin body 200 to move along its own axial direction. The traction line 350 is typically made of high-strength, wear-resistant materials, such as steel wire rope or nylon rope. The traction line 350 extends to the outside of the working chamber 120. On the outside of the working chamber 120, a handle or pull ring can be provided at the end of the traction line 350 to facilitate the application of external force, making it convenient for operators to operate.

[0032] By setting up a traction rope, when the drive assembly 320 fails to work properly, the traction line 350 provides an emergency driving method. The operator can pull the traction line 350 from the outside of the working chamber 120 to directly drive the pin shaft 200 to move along its own axis, thereby separating or inserting the pin shaft 220 with the buckle hole 111. This ensures that the shackle device can still be used normally under special circumstances, avoids work interruption due to the failure of the drive assembly 320, and improves the reliability and stability of the entire system.

[0033] In the specific structure of the shackle body 100, an inspection hole 130 is provided on the side of the shackle body 100 opposite to the working chamber 120. The inspection hole 130 is a through hole structure that penetrates the shackle body 100 and is connected to a buckle hole 111 away from the working chamber 120. In actual operation, the operator can check the insertion status of the pin body 200 and the shackle through the inspection hole 130, which allows for timely inspection and maintenance.

[0034] In addition, a balancing space 140 is provided on the side of the shackle body 100 opposite to the working chamber 120, and a counterweight 150 is provided in the balancing space 140. The shape and size of the balancing space 140 are set according to the overall structure of the shackle body 100 and the required balancing effect. It is a rectangular or circular groove-shaped structure with sufficient internal space to accommodate the counterweight 150.

[0035] During the operation of the shackle device, the counterweight 150 set in the balance space 140 can effectively adjust the center of gravity position of the shackle body 100, so that the center of gravity is always kept within a reasonable range, reducing the risk of tilting, shaking or even overturning of the device due to the shift of the center of gravity, ensuring that the shackle maintains a stable posture during hoisting, and improving the safety of the operation. The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-release buckle device, comprising a buckle body (100), the buckle body (100) including a hanging ring portion (110), the tail end of the hanging ring portion (110) having two opposing buckle holes (111), characterized in that, It also includes a pin body (200) and a self-release mechanism (300). The shackle body (100) has a working chamber (120) on one side of the hanging ring (110). The pin body (200) and the self-release mechanism (300) are both disposed in the working chamber (120). The self-release mechanism (300) includes a mounting base (310), a drive assembly (320), and a guide sleeve (330). The mounting base (310) is fixedly connected to the side wall of the working chamber (120). The guide sleeve (330) 0) The mounting base (310) is elastically connected to the mounting base (310) via a first elastic element (340). The pin body (200) is movably connected inside the guide sleeve (330). The drive assembly (320) is connected to the pin body (200) to drive the pin body (200) to move along its own axial direction to engage or disengage with the two buckle holes (111), thereby closing or opening the hanging ring (110). The first elastic element (340) can elastically deform in a direction perpendicular to the axial direction of the pin body (200).

2. The self-release buckle device according to claim 1, characterized in that, The first elastic element (340) includes a limiting rod (341) and a first spring (342). The mounting base (310) is provided with a limiting through hole (311) extending in a direction perpendicular to the axial direction of the pin body (200). One end of the limiting rod (341) is provided with a connecting part (344), and the other end is provided with a limiting protrusion (343). The diameter of the limiting protrusion (343) is larger than the diameter of the limiting through hole (311). The connecting part (344) of the limiting rod (341) passes through the limiting through hole (311) and is connected to the side wall of the guide sleeve (330). The first spring (342) is sleeved on the limiting rod (341) and is located between the limiting protrusion (343) and the mounting base (310).

3. The self-release buckle device according to claim 2, characterized in that, The connecting part (344) includes a first threaded structure, and the side wall of the guide sleeve (330) is provided with a threaded hole (331) that is threaded to cooperate with the first threaded structure.

4. The self-release buckle device according to claim 3, characterized in that, The first elastic element (340) is provided in multiple ways, and the multiple first elastic elements (340) are evenly spaced along the axial direction of the pin body (200).

5. The self-release buckle device according to claim 2, characterized in that, The pin body (200) includes a drive part (210) and a pin part (220) connected in sequence. The pin part (220) is movable to engage or disengage with the buckle hole (111). The extension direction of the drive part (210) intersects the extension direction of the pin part (220), and the drive part (210) is located on the outer side of the mounting base (310) away from the hanging ring part (110). The drive assembly (320) is fixedly connected to the mounting base (310) and is connected to the drive part (210) to drive the pin part (220) to move along its own axial direction.

6. The self-release buckle device according to claim 5, characterized in that, The drive assembly (320) is a push-pull electromagnet structure.

7. The self-release buckle device according to claim 5, characterized in that, The pin portion (220) includes a first segment (221) and a second segment (222) connected in sequence. The first segment (221) can be inserted into or separated from the buckle hole (111). The second segment (222) is connected to the drive portion (210). The diameter of the first segment (221) is larger than the diameter of the second segment (222). The second segment (222) is fitted with a second elastic element (230). The second elastic element (230) is located between the first segment (221) and one end wall of the guide sleeve (330). When the first segment (221) is separated from the buckle hole (111), the second elastic element (230) is in an elastic contraction state.

8. The self-release buckle device according to claim 7, characterized in that, The second segment (222) has a traction line (350) at one end away from the first segment (221). The traction line (350) extends to the outside of the working chamber (120) so that an external force can be applied to the traction line (350) to drive the pin body (200) to move along its own axis.

9. The self-release buckle device according to claim 1, characterized in that, The shackle body (100) has an inspection hole (130) on the side opposite to the working chamber (120), and the inspection hole (130) is connected to the buckle hole (111) away from the working chamber (120).

10. The self-release buckle device according to claim 1, characterized in that, The shackle body (100) has a balance space (140) on one side opposite to the working chamber (120), and a counterweight (150) is provided in the balance space (140).

Images