Corrosion-resistant composite coating fastener

By designing corrosion-resistant composite coated fasteners and utilizing elastic adjustment and wedge positioning components, the problems of fastener loosening in corrosive environments and cumbersome installation and adjustment are solved, achieving stable positioning and precise installation under complex working conditions.

CN224214531UActive Publication Date: 2026-05-08DONGTAI CITY HUAWEI STANDARD COMPONENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGTAI CITY HUAWEI STANDARD COMPONENT CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Fasteners are prone to failure in corrosive environments and their structure loosens under vibration and other factors, making them unable to self-adaptively and elastically position themselves, and subsequent installation and adjustment are cumbersome.

Method used

The fasteners, which employ corrosion-resistant composite coatings, include elastic adjustment components, fine-tuning components, compensation limit components, and wedge positioning components, forming a dual constraint mechanism. They utilize the inclined plane self-locking principle and elastic deformation to adapt to positional deviations, providing fine adjustment capabilities.

Benefits of technology

Maintaining fastener stability under complex working conditions, preventing loosening, ensuring precise positioning, adapting to vibration and temperature changes, and simplifying installation and adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a corrosion-resistant composite coating fastener which comprises a fastening assembly, an elastic adjusting assembly is arranged in the fastening assembly, a fine adjustment assembly is arranged in the fastening assembly, a compensation limiting assembly is installed on the top of the fine adjustment assembly, and a wedge-shaped positioning assembly is installed on the top of the compensation limiting assembly. The utility model provides a corrosion-resistant composite coating fastener. The corrosion-resistant composite coating fastener is used in cooperation with a compensation limiting assembly and a wedge-shaped positioning assembly. The wedge-shaped positioning assembly generates extrusion force perpendicular to an inclined plane when the fastening assembly is stressed according to the inclined plane self-locking principle. The compensation limiting assembly can dynamically compensate infinitesimal displacement caused by factors such as vibration and temperature change. Meanwhile, the elastic adjusting assembly arranged at the bottom is used in cooperation with the fine adjustment assembly, and the elastic adjusting assembly can adapt to position deviation within a certain range through elastic deformation of the elastic adjusting assembly; and the fine adjustment assembly provides a fine adjustment function.
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Description

Technical Field

[0001] This utility model relates to the field of fastener structure technology, and in particular to a corrosion-resistant composite coating fastener. Background Technology

[0002] In modern industrial and infrastructure construction, fasteners, as key components of connecting structures, are widely used in marine engineering, chemical engineering, energy, and other fields. However, metallic materials are highly susceptible to oxidation and galvanic corrosion in corrosive environments such as high humidity, salt spray, and acid / alkali conditions, leading to fastener failure.

[0003] Existing fasteners are often susceptible to vibrations from equipment during daily use. When subjected to vibrations for a long time, the internal structure of the fasteners is prone to loosening and falling off, making it impossible for them to adapt to the position of the fastening structure and thus making subsequent installation and adjustment cumbersome and impractical.

[0004] Therefore, it is necessary to provide a corrosion-resistant composite coating fastener to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a corrosion-resistant composite coating fastener that solves the problems of adaptive elastic positioning based on the location of the fastening structure and the cumbersome installation and adjustment process.

[0006] To solve the above-mentioned technical problems, the present invention provides a corrosion-resistant composite coating fastener comprising: a fastening assembly, wherein the fastening assembly is provided with an elastic adjustment assembly inside, and a fine-tuning assembly is provided inside the fastening assembly. The fine-tuning assembly is used for fine-tuning the position of the elastic adjustment assembly. A compensation limiting assembly is installed on the top of the fine-tuning assembly. The compensation limiting assembly is used for locking the position of the fastening assembly. A wedge positioning assembly is installed on the top of the compensation limiting assembly. The wedge positioning assembly is used for limiting the adjustment of the compensation limiting assembly.

[0007] Preferably, the fastening assembly includes a fastening screw, a tightening structure is fixed to the top of the fastening screw, the tightening structure is used for rotating and tightening the fastening screw, a fastening nut is threaded to the inner wall of the fastening screw, and positioning holes are provided on the inner walls of both the fastening screw and the fastening nut.

[0008] Preferably, the elastic adjustment component includes a fixed cavity, inside which a support plate is provided, and an elastic reset member is installed at the bottom of the support plate, the elastic reset member being used for elastic support of the support plate.

[0009] Preferably, the fine-tuning component includes a fine-tuning fastening rod, the top of which has a fastening groove, and the inner wall of which is threaded with a fastening ring structure, the fastening ring structure being used for fine-tuning and fastening of the elastic adjustment component.

[0010] Preferably, the compensation limiting component includes a fixed plate, with rotating frames installed at both ends of the fixed plate, a compensation baffle rotating on the side end of the rotating frames, torsion spring structures at both ends of the compensation baffle for elastic reset of the compensation baffle, an elastic reset member on the side end of the compensation baffle, and a positioning rod installed on the side end of the elastic reset member.

[0011] Preferably, the wedge positioning component includes a support frame, an active wedge block, and a driven wedge block. The support frame has an adjustment structure in the middle, which is used to adjust the position of the active wedge block. The driven wedge block is installed on the inner walls of both ends of the compensation limiting component.

[0012] Compared with related technologies, the corrosion-resistant composite coating fastener provided by this utility model has the following beneficial effects:

[0013] This invention provides a corrosion-resistant composite coating fastener. During installation and use, to ensure the stability of the fastener's position, a dual constraint mechanism is formed through the combined use of a compensation limiting component and a wedge-shaped positioning component. The wedge-shaped positioning component utilizes the self-locking principle of an inclined plane, generating a compressive force perpendicular to the inclined plane when the fastener is under force, firmly fixing it in place. The compensation limiting component dynamically compensates for minor displacements caused by vibration, temperature changes, and other factors, preventing loosening and ensuring that the fastener maintains a precise position under complex working conditions, avoiding the risk of connection failure due to displacement. Simultaneously, during precise positioning, the structure utilizes a combination of an elastic adjustment component and a fine-tuning component at the bottom. The elastic adjustment component, through its own elastic deformation, can adapt to positional deviations within a certain range; the fine-tuning component provides a fine adjustment function, allowing the fastener to find the optimal installation position even in complex structures through precise thread rotation. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of a corrosion-resistant composite coating fastener provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the structure of the elastic adjustment component.

[0016] Figure 3 for Figure 1 The diagram shows the structure of the tightening mechanism.

[0017] Figure 4 for Figure 1The diagram shows the structure of the elastic reset component.

[0018] Figure 5 for Figure 1 The diagram shows the structure of the active wedge block.

[0019] The diagram is labeled as follows: 1. Fastening assembly, 11. Fastening screw, 12. Tightening structure, 13. Fastening nut, 14. Positioning hole, 2. Elastic adjustment assembly, 21. Fixed cavity, 22. Support plate, 23. Elastic reset component, 3. Fine adjustment assembly, 31. Fine adjustment fastening rod, 32. Fastening groove, 33. Fastening ring structure, 4. Compensation limit assembly, 41. Fixed plate, 42. Rotating frame, 43. Compensation baffle, 44. Torsion spring structure, 45. Elastic reset component, 46. Positioning rod, 5. Wedge positioning assembly, 51. Support frame, 52. Adjustment structure, 53. Active wedge block, 54. Driven wedge block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of a corrosion-resistant composite coating fastener provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the elastic adjustment component. Figure 3 for Figure 1 The diagram shows the structure of the tightening mechanism.

[0022] Figure 4 for Figure 1 The diagram shows the structure of the elastic reset component. Figure 5 for Figure 1 The diagram shows the structure of the active wedge block. A corrosion-resistant composite coating fastener includes: a fastening component 1, an elastic adjustment component 2 inside the fastening component 1, a fine-tuning component 3 inside the fastening component 1, the fine-tuning component 3 being used for fine-tuning the position of the elastic adjustment component 2, a compensation limiting component 4 mounted on the top of the fine-tuning component 3, the compensation limiting component 4 being used for locking the position of the fastening component 1, and a wedge positioning component 5 mounted on the top of the compensation limiting component 4, the wedge positioning component 5 being used for limiting the adjustment of the compensation limiting component 4.

[0023] The fastening assembly 1 includes a fastening screw 11, and a tightening structure 12 is fixed to the top of the fastening screw 11. The tightening structure 12 is used for the rotational fastening of the fastening screw 11. A fastening nut 13 is threadedly connected to the inner wall of the fastening screw 11. Positioning holes 14 are provided on the inner walls of both the fastening screw 11 and the fastening nut 13.

[0024] In use, the fastening assembly 1 can be conveniently fastened and locked by the fastening screw 11 and fastening nut 13, and the tightening structure 12 on the top can be conveniently rotated, providing ease of use.

[0025] The fastening component 1 includes, but is not limited to, bolts and nuts, rivets, and pins; in this embodiment, bolts and nuts are preferred as the fastening component 1.

[0026] The elastic adjustment component 2 includes a fixed cavity 21, inside which a support plate 22 is provided. An elastic reset member 23 is installed at the bottom of the support plate 22, and the elastic reset member 23 is used for elastic support of the support plate 22.

[0027] When the internal structure is adjusted, the elastic reset member 23 at the bottom will elastically adjust the support plate 22 to adapt to a certain range of positional deviation.

[0028] Among them, the elastic adjustment component 2 includes, but is not limited to, spring type and elastic sheet type; in this embodiment, the elastic adjustment component 2 is preferably spring type.

[0029] The fine-tuning component 3 includes a fine-tuning fastening rod 31, the top of which has a fastening groove 32, and the inner wall of the fine-tuning fastening rod 31 is threaded with a fastening ring structure 33, which is used for fine-tuning and fastening of the elastic adjustment component 2.

[0030] When making fine adjustments to the internal structure, the fine-tuning fastening rod 31 on the side can be rotated first. With the threaded connection on the inner wall and the rotation of the structure, the position of the fastening ring structure 33 can be easily moved, thereby making more precise fine adjustments to the internal structure.

[0031] Among them, the fine-tuning component 3 includes, but is not limited to, threaded fine-tuning type and lever fine-tuning type; in this embodiment, the fine-tuning component 3 is preferably threaded fine-tuning type.

[0032] The compensation limiting component 4 includes a fixed plate 41, with rotating frames 42 installed at both ends of the fixed plate 41. A compensation baffle 43 is rotatably mounted on the side end of the rotating frame 42. A torsion spring structure 44 is provided at both ends of the compensation baffle 43. The torsion spring structure 44 is used for the elastic reset of the compensation baffle 43. An elastic reset member 45 is provided on the side end of the compensation baffle 43. A positioning rod 46 is installed on the side end of the elastic reset member 45.

[0033] When the compensation limiting component 4 compensates and limits the fastening component 1, the compensation baffles 43 at both ends will rotate along the position of the rotating frame 42, and the torsion spring structure 44 at both ends of the compensation baffle 43 will elastically reset the compensation baffle 43. Subsequently, the positioning rod 46 at the side end will be positioned on the inner wall of both ends of the fastening component 1 under the action of the elastic reset component 45 and the torsion spring structure 44 to ensure good elastic support during use.

[0034] Among them, the compensation limiting component 4 includes, but is not limited to, rigid limiting block type and elastic limiting type; in this embodiment, the compensation limiting component 4 is preferably elastic limiting type.

[0035] The wedge positioning component 5 includes a support frame 51, an active wedge block 53, and a driven wedge block 54. The support frame 51 has an adjustment structure 52 in the middle, which is used to adjust the position of the active wedge block 53. The driven wedge block 54 is installed on the inner walls of both ends of the compensation limiting component 4.

[0036] When positioning the fastening assembly 1, the top adjustment structure 52 can be rotated first. When the structure is rotated and adjusted, the bottom active wedge block 53 will contact and squeeze the driven wedge block 54. Subsequently, the compensation limiting assemblies 4 at both ends will position the structure to prevent the internal structure from becoming loose.

[0037] Among them, the wedge positioning component 5 includes, but is not limited to, single wedge block and double wedge block top-to-top type; in this embodiment, the wedge positioning component 5 is preferably double wedge block top-to-top type.

[0038] The working principle of the corrosion-resistant composite coating fastener provided by this utility model is as follows:

[0039] During installation and use, the fastener can first be tightened structurally by fastening component 1. Then, to ensure the accurate positioning of the structure, the height of elastic adjustment component 2 can be adjusted by using the internal fine-tuning component 3. Subsequently, by rotating the top wedge positioning component 5, the compensation limiting components 4 at both ends will be adjusted and squeezed under the oblique squeezing action of the inner wall. When the compensation limiting components 4 are squeezed, they will be directly positioned against the inner wall of the fastening component 1, thereby ensuring the stable connection of the fastening component 1 and reducing the loosening of the structure.

[0040] Compared with related technologies, the corrosion-resistant composite coating fastener provided by this utility model has the following beneficial effects:

[0041] During installation and use, to ensure the stability of the fastener's position, a dual constraint mechanism is formed through the combined use of the compensation limiting component 4 and the wedge positioning component 5. The wedge positioning component 5 utilizes the principle of inclined plane self-locking, generating a compressive force perpendicular to the inclined plane when the fastener component 1 is subjected to force, firmly fixing it in place. The compensation limiting component 4 dynamically compensates for minor displacements caused by vibration, temperature changes, and other factors, preventing loosening and ensuring that the fastener component 1 maintains a precise position under complex working conditions, avoiding the risk of connection failure due to displacement. Simultaneously, during precise positioning of the structure, the elastic adjustment component 2 and the fine-tuning component 3 at the bottom work together. The elastic adjustment component 2 utilizes its own elastic deformation to adapt to positional deviations within a certain range; the fine-tuning component 3 provides fine adjustment functionality, allowing the fastener component 1 to find the optimal installation position even in complex structures through precise thread rotation or lever fine-tuning.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A corrosion-resistant composite coating fastener, characterized in that, include: The fastening assembly includes an elastic adjustment component and a fine-tuning component. The fine-tuning component is used for fine-tuning the position of the elastic adjustment component. A compensation limiting component is installed on the top of the fine-tuning component. The compensation limiting component is used for locking the position of the fastening assembly. A wedge positioning component is installed on the top of the compensation limiting component. The wedge positioning component is used for limiting the adjustment of the compensation limiting component.

2. The corrosion-resistant composite coating fastener according to claim 1, characterized in that, The fastening assembly includes a fastening screw, a tightening structure fixed to the top of the fastening screw, the tightening structure being used for rotating and tightening the fastening screw, a fastening nut being threaded onto the inner wall of the fastening screw, and positioning holes being provided on the inner walls of both the fastening screw and the fastening nut.

3. The corrosion-resistant composite coating fastener according to claim 1, characterized in that, The elastic adjustment assembly includes a fixed cavity, inside which a support plate is provided, and an elastic reset member is installed at the bottom of the support plate, the elastic reset member being used for elastic support of the support plate.

4. The corrosion-resistant composite coating fastener according to claim 1, characterized in that, The fine-tuning component includes a fine-tuning fastening rod with a fastening groove at the top and a fastening ring structure threaded onto the inner wall of the fine-tuning fastening rod. The fastening ring structure is used for fine-tuning and fastening the elastic adjustment component.

5. The corrosion-resistant composite coating fastener according to claim 1, characterized in that, The compensation limiting component includes a fixed plate, with rotating frames installed at both ends of the fixed plate. A compensation baffle is rotatably mounted on the side end of the rotating frame. A torsion spring structure is provided at both ends of the compensation baffle. The torsion spring structure is used for the elastic reset of the compensation baffle. An elastic reset member is provided on the side end of the compensation baffle, and a positioning rod is installed on the side end of the elastic reset member.

6. The corrosion-resistant composite coating fastener according to claim 1, characterized in that, The wedge positioning component includes a support frame, an active wedge block, and a driven wedge block. The support frame has an adjustment structure in the middle, which is used to adjust the position of the active wedge block. The driven wedge block is installed on the inner walls of both ends of the compensation limiting component.