Anti-loosening buckle device for quickly disassembling and assembling skin cover plate

By designing a linkage structure between the rotary buckle assembly and the limit assembly, the problems of low disassembly and assembly efficiency and loosening of the skin cover fixing method are solved, realizing quick disassembly and assembly and stable connection, and improving the maintenance convenience and safety of the equipment.

CN224161919UActive Publication Date: 2026-04-24DALIAN SIWEI ZHIDA RAIL TRANSIT EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN SIWEI ZHIDA RAIL TRANSIT EQUIPMENT CO LTD
Filing Date
2025-06-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional methods of fixing skin covers are inefficient to install and remove and are prone to loosening under long-term dynamic loads, affecting the convenience of equipment maintenance and operational safety.

Method used

A quick-release and anti-loosening buckle device for skin cover plates was designed. It adopts a linkage structure of rotary buckle component and limit component. The buckle can be locked or unlocked by simple rotation. The spring provides elastic force to limit the rotation of the buckle component and prevent loosening.

Benefits of technology

It significantly shortens the disassembly and assembly time, improves disassembly and assembly efficiency, and maintains a stable connection under vibration or external impact, preventing the clips from loosening and falling off.

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Abstract

The utility model discloses a skin cover plate quick dismounting and mounting anti-loosening buckle device which comprises a cover plate body, and a skin body and an annular mounting frame are sequentially arranged on the cover plate body. The cover plate body is provided with a plurality of buckle assemblies, and the buckle assemblies are connected with the annular mounting frame in a clamped mode through rotation. The cover plate body is further provided with a limiting assembly matched with the buckle assembly, and the limiting assembly is used for limiting the rotating state of the buckle assembly. According to the cover plate device, by arranging the rotary buckle assembly, a user can complete locking or unlocking of the buckle only through simple rotation, complex tools are not needed, the disassembly and assembly time is greatly shortened, and the disassembly and assembly efficiency is improved. And meanwhile, through linkage of the limiting assembly and the buckle assembly, unexpected rotation of the buckle assembly is effectively limited, stable connection can be kept even under vibration or external force impact, and a buckle is prevented from loosening and falling off.
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Description

Technical Field

[0001] This utility model relates to the field of cover plate equipment technology, specifically to a quick-release and anti-loosening buckle device for skin cover plates. Background Technology

[0002] In the fields of aviation, aerospace, rail transportation, and precision instruments, the skin cover plate is an important component of the equipment shell. The reliability of its installation structure and the efficiency of disassembly and assembly directly affect the ease of maintenance and operational safety of the equipment.

[0003] Traditional methods of fixing skin covers mainly rely on bolt fastening, snap-fit ​​connections, or magnetic adsorption technology. However, bolt fastening requires tools to tighten / loosen, resulting in low assembly and disassembly efficiency. Snap-fit ​​connections or magnetic adsorption are prone to loosening under long-term dynamic loads, leading to insufficient anti-loosening performance of the structure. Therefore, this paper provides a quick-release and anti-loosening snap-fit ​​device for skin covers. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-release and anti-loosening buckle device for skin cover plates, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release and anti-loosening buckle device for a skin cover, comprising a cover body, wherein a skin body and an annular mounting frame are sequentially arranged on the cover body;

[0006] The cover plate body is provided with a plurality of snap-fit ​​components, which are connected to the annular mounting frame by rotation;

[0007] The cover plate body is also provided with a limiting component that cooperates with the buckle assembly to limit the rotation state of the buckle assembly.

[0008] Preferably, the buckle assembly includes a fixing block disposed on the cover plate body, the fixing block having an installation opening at one end facing the annular mounting frame, an L-shaped locking block being rotatably installed in the installation opening, and a first spring being disposed between the L-shaped locking block and the installation opening.

[0009] Preferably, the annular mounting frame is provided with a slot that is adapted to the L-shaped card block.

[0010] Preferably, the limiting component includes a groove disposed in the mounting opening, a slider disposed on the inner side of the groove, a second spring disposed between the groove opening and the slider, and an n-shaped stop disposed on the slider and located outside the first spring.

[0011] Preferably, the n-shaped stop has hand-held portions at both ends.

[0012] Preferably, the L-shaped block has a slot on the side away from its pivot end, and the bottom of the n-shaped block has a strip that matches the slot.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a quick-release and anti-loosening buckle device for a skin cover plate. By setting a rotary buckle component, the user only needs to rotate it to lock or unlock the buckle without relying on complicated tools, which greatly shortens the disassembly and assembly time and effectively improves the disassembly and assembly efficiency. At the same time, by linking the limiting component with the buckle component, the unexpected rotation of the buckle component is effectively limited, and a stable connection can be maintained even under vibration or external impact, preventing the buckle from loosening and falling off. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0015] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A;

[0016] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point B;

[0017] Figure 4 This is a schematic diagram of the left cross-sectional structure of the buckle device of this utility model;

[0018] Figure 5 This is a top view of the annular mounting frame of this utility model.

[0019] In the diagram: 1. Cover plate body; 2. Skin body; 3. Annular mounting frame; 31. Bayonet; 4. Buckle assembly; 41. Fixing block; 42. Mounting port; 43. L-shaped locking block; 44. First spring; 5. Limiting assembly; 51. Groove; 52. Slider; 53. Second spring; 54. N-shaped stop block; 55. Handhold part; 6. Slot; 7. Locking strip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This utility model provides a technical solution: a quick-release and anti-loosening buckle device for a skin cover, comprising a cover body 1, which serves as the base of the entire device and undertakes the connection and support functions; a skin body 2 and an annular mounting frame 3 are sequentially arranged on the cover body 1, the skin body 2 can be made of metal or composite material, used to protect the internal structure or improve the appearance; the annular mounting frame 3 is designed around the edge of the cover body to provide the snap-fit ​​positioning points for the buckle components; a plurality of buckle components 4 are provided on the cover body 1, and the buckle components 4 are connected to the annular mounting frame 3 by rotation; the cover body 1 is also provided with a limiting component 5 that cooperates with the buckle components 4 to limit the rotation state of the buckle components 4. By setting the rotary buckle components 4, the user only needs to rotate to lock or unlock the buckle, without relying on complicated tools, which greatly shortens the disassembly and assembly time and effectively improves the disassembly and assembly efficiency. At the same time, through the linkage between the limiting component 5 and the buckle components 4, the unexpected rotation of the buckle components 4 is effectively limited, and a stable connection can be maintained even under vibration or external impact, preventing the buckle from loosening and falling off.

[0022] Specifically, the latching assembly 4 includes a fixing block 41 disposed on the cover plate body 1. The fixing block 41 has an installation port 42 at one end facing the annular mounting frame 3. An L-shaped latching block 43 is rotatably installed in the installation port 42. The L-shaped latching block 43 consists of two arms that are perpendicularly connected to each other. One arm is rotatably connected to the installation port 42, and the other arm is used to latch onto the annular mounting frame 3. A first spring 44 is provided between the L-shaped latching block 43 and the installation port 42. The first spring 44 provides elastic force to the L-shaped latching block 43. During the unlocking process, the user releases the constraint of the limiting assembly 5 and manually rotates the L-shaped latching block 43 to disengage from the annular mounting frame 3 and cancel the latching connection with the annular mounting frame 3. At this time, the first spring 44 is compressed and stores elastic potential energy. During the locking process, the L-shaped latching block 43 rotates back to its original position under the restoring force of the first spring 44, so that the L-shaped latching block 43 contacts the annular mounting frame 3 to achieve a latching connection.

[0023] Specifically, the annular mounting frame 3 is provided with a slot 31 that is adapted to the L-shaped card block 43. The slot 31 is a specially designed card interface on the annular mounting frame 3. Its shape is perfectly matched with the end of the L-shaped card block 43. One end of the L-shaped card block 43 will be embedded in the slot 31 to form a mechanical engagement. The depth of the slot 31 is adapted to the thickness of the L-shaped card block 43 that enters the slot 31, which effectively avoids damage to the L-shaped card block 43 under external impact.

[0024] Specifically, the limiting component 5 includes a groove 51 disposed within the mounting opening 42. A slider 52 is disposed on the inner side of the groove 51, and the slider 52 slides vertically within the groove 51. A second spring 53 is disposed between the groove opening of the groove 51 and the slider 52, and the second spring 53 provides elastic force to drive the slider 52 to reset. An n-shaped stop 54 is disposed on the slider 52 and located outside the first spring 44. The n-shaped stop 54 is used to limit the rotation state of the latching component 4. The L-shaped latch 43 of the latching component 4 and the annular... When the mounting frame 3 is engaged with the slot 31, the limiting component 5, under the elastic force of the second spring 53, keeps the slider 52 and the n-shaped stop 54 in their initial positions, ensuring that the n-shaped stop 54 is tightly against the L-shaped block 43 to prevent loosening. When the limiting component 5 is unlocked, the user needs to manually pull the n-shaped stop 54 to move the slider 52, compressing the second spring 53 and causing the n-shaped stop 54 to disengage from the L-shaped block 43, allowing the user to rotate the L-shaped block 43 to the unlocked state to complete the disassembly.

[0025] Specifically, the n-shaped stop 54 has a hand-held part 55 at both ends. Its shape can be set as a raised grip area or a groove structure that is easy for fingers to press. The specific design can be adjusted according to actual operation needs. The hand-held part 55 is usually integrally formed with the n-shaped stop 54. The hand-held part 55 makes it convenient to lift the n-shaped stop 54.

[0026] Specifically, the L-shaped block 43 has a slot 6 on the side away from its pivot end, and the bottom of the n-shaped block 54 has a locking strip 7 that matches the slot 6. When the n-shaped block 54 is pulled to release its obstruction of the L-shaped block 43, the user rotates the L-shaped block 43 to unlock the slot 6, releases the n-shaped block 54, and causes the second spring 53 to release its elastic force, so that the locking strip 7 on the n-shaped block 54 engages with the slot 6 on the L-shaped block 43. At this time, the buckle assembly 4 remains unlocked. When locking, the n-shaped block 54 is pulled upward again, so that the locking strip 7 on the n-shaped block 54 disengages from the slot 6 on the L-shaped block 43, so that the buckle assembly 4 engages with the annular mounting frame 3, and the limiting assembly 5 is in the initial position for limiting.

[0027] Working principle: When this utility model is in operation, during unlocking, when the n-shaped stop 54 is pulled up to disengage from the L-shaped locking block 43, the user rotates the L-shaped locking block 43 to move the locking groove 6 to the unlocked state, releasing the n-shaped stop 54. This causes the second spring 53 to release its elastic force, moving the slider 52 and the n-shaped stop 54, so that the locking strip 7 on the n-shaped stop 54 engages with the locking groove 6 on the L-shaped locking block 43. At this time, the buckle assembly 4 remains in the unlocked state. During locking, the n-shaped stop 54 is pulled up again, causing the locking strip 7 on the n-shaped stop 54 to disengage from the locking groove 6 on the L-shaped locking block 43. Under the restoring force of the first spring 44, the L-shaped locking block 43 rotates back to its original position, making it engage with the annular mounting frame 3. At the same time, under the elastic force of the second spring 53, the n-shaped stop 54 remains in its initial position, keeping it tightly against the L-shaped locking block 43 to prevent loosening.

[0028] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release and anti-loosening buckle device for a skin cover plate, characterized in that, Includes a cover plate body (1), on which a skin body (2) and an annular mounting frame (3) are sequentially provided. The cover plate body (1) is provided with a plurality of buckle components (4), and the buckle components (4) are connected to the annular mounting frame (3) by rotation; The cover plate body (1) is also provided with a limiting component (5) that cooperates with the buckle assembly (4) to limit the rotation state of the buckle assembly (4).

2. The quick-release and anti-loosening buckle device for a skin cover plate according to claim 1, characterized in that: The buckle assembly (4) includes a fixing block (41) disposed on the cover plate body (1). The fixing block (41) has an installation port (42) at one end facing the annular mounting frame (3). An L-shaped buckle (43) is rotatably installed in the installation port (42). A first spring (44) is provided between the L-shaped buckle (43) and the installation port (42).

3. The quick-release and anti-loosening buckle device for a skin cover plate according to claim 2, characterized in that: The annular mounting frame (3) is provided with a slot (31) that is compatible with the L-shaped card block (43).

4. The quick-release and anti-loosening buckle device for a skin cover plate according to claim 2, characterized in that: The limiting component (5) includes a groove (51) disposed in the mounting port (42), a slider (52) is provided on the inner side of the groove (51), a second spring (53) is provided between the groove (51) and the slider (52), and an n-shaped stop (54) is provided on the slider (52) and located outside the first spring (44).

5. The quick-release and anti-loosening buckle device for a skin cover plate according to claim 4, characterized in that: The n-shaped stop (54) has hand-held parts (55) at both ends.

6. The quick-release and anti-loosening buckle device for a skin cover plate according to claim 4, characterized in that: The L-shaped block (43) has a slot (6) on the side away from its pivot end, and the bottom of the n-shaped block (54) has a strip (7) that matches the slot (6).