High-strength corrosion-resistant fastener structure

Abstract

The utility model discloses a high-strength corrosion-resistant fastener structure, which relates to the technical field of fasteners and comprises a fastener body, a fixed hexagonal head is arranged at the top of the fastener body, the fixed hexagonal head and the fastener body are arranged into an integrated structure, a protective cover is arranged at the top of the fixed hexagonal head in a matched manner, and the protective cover is arranged on the top of the fixed hexagonal head. The protective cover is detachably connected with the fixing hexagonal head, a connecting flange is arranged at the bottom end of the fixing hexagonal head and connected with the protective cover through a tying belt, and a nut is connected to the surface of the fastener body in a threaded mode. According to the anti-corrosion fastener structure, the waterproof rings are adopted to conduct sealing and waterproofing on the connecting gaps between the fastener body and the end face of a connecting part and between the connecting flange and the end face of the part, meanwhile, the fastener structure can have good corrosion resistance through the arranged protective cover, and the annular anti-skid ribs are arranged at the bottom end of the connecting flange; loosening and slipping of fastener connection can be effectively prevented.

Description

Technical Field

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

[0002] Fasteners are mechanical parts used to fasten two or more parts or components together into a whole. Fasteners are a type of mechanical part used for fastening connections and are widely used, with a large demand.

[0003] Currently, commercially available bolt fasteners typically consist of a bolt and a matching nut, a relatively simple structure. However, water can easily enter the fastener joint, leading to rapid corrosion. Furthermore, during use, vibrations can cause the nut to loosen and slip off the bolt. Some existing fasteners also suffer from low corrosion resistance, resulting in reduced fixing effectiveness after prolonged use, and there are issues with the connection between the nut and washer. Therefore, a high-strength, corrosion-resistant fastener structure is designed to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-strength, corrosion-resistant fastener structure to solve the problems mentioned in the prior art, such as water ingress at the fastener connection leading to rapid corrosion of the bolts, and the easy loosening and slippage of the nut from the bolt when the bolt is subjected to vibration during use. To solve these technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model provides a high-strength corrosion-resistant fastener structure, including a fastener body, a fixed hexagonal head on the top of the fastener body, the fixed hexagonal head and the fastener body being an integral structure, a protective cover on the top of the fixed hexagonal head, the protective cover and the fixed hexagonal head being detachably connected, a connecting flange on the bottom of the fixed hexagonal head, the connecting flange being connected to the protective cover by a strap, and a nut being screwed onto the surface of the fastener body.

[0006] Preferably, the fastener body has an external thread on its surface, which passes through the connecting flange and connects to the nut.

[0007] Preferably, a waterproof ring is provided on the top of the connecting flange, and the waterproof ring is snapped between the connecting flange and the fixed hexagonal head to achieve a sealed connection.

[0008] Preferably, the connecting flange has a threaded hole, one end of the strap is connected to the threaded hole by a set screw, and the bottom of the connecting flange is provided with several anti-slip ribs, the cross-section of which is semi-circular.

[0009] Preferably, the top of the protective cover is provided with a fixing ring, which is rotatably connected to one end of the strap.

[0010] Preferably, the waterproof ring and the tie are made of rubber.

[0011] Preferably, the fastener body, the external thread, and the nut are all provided with a corrosion-resistant layer, and the material of the corrosion-resistant layer is one of zinc plating, chromium plating, and nickel plating.

[0012] Therefore, the high-strength corrosion-resistant fastener structure of this utility model, which adopts the above-mentioned structure, has the following beneficial effects compared with the prior art:

[0013] (1) By using the fastener body and the connecting flange together, the waterproof ring on the top of the connecting flange and the anti-slip rib at the bottom achieve the functions of anti-loosening and corrosion resistance. It can seal and waterproof the connection gap between the bolt fastener and the end face of the part, which solves the problem that the existing bolt fastener does not have the function of anti-loosening, avoids shaking after long-term use, which greatly reduces the fixing effect, and does not have the function of corrosion resistance. At the same time, the protective cover covers the fixed hexagonal head, and the strap ensures that the protective cover can be detachably connected to the fixed hexagonal head, which is convenient for disassembly and solves the problem that the fixed hexagonal head is easily corroded when exposed to air.

[0014] (2) By setting a corrosion-resistant layer, this utility model can further improve the corrosion resistance of the bolt body. The corrosion-resistant layer is made of one of zinc plating, chromium plating and nickel plating, which can improve the corrosion resistance of the bolt body and reduce the impact of external corrosive substances. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a high-strength corrosion-resistant fastener according to the present invention;

[0016] Figure 2 This is an assembly three-dimensional model of an embodiment of a high-strength corrosion-resistant fastener structure according to this utility model;

[0017] Figure 3 This is a front view of an embodiment of a high-strength corrosion-resistant fastener structure according to the present invention;

[0018] Figure 4 This is a schematic diagram of the top structure of the connecting flange in an embodiment of a high-strength corrosion-resistant fastener structure according to the present invention;

[0019] Figure 5 This is a schematic diagram of the bottom structure of the connecting flange in an embodiment of a high-strength corrosion-resistant fastener structure according to this utility model.

[0020] Figure label:

[0021] 1. Fastener body; 101. Fixing hexagonal head; 102. External thread; 2. Protective cover; 3. Tie; 4. Set screw; 5. Connecting flange; 501. Threaded hole; 502. Waterproof groove; 503. Anti-slip rib; 6. Nut; 7. Waterproof ring; 8. Retaining ring. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example

[0025] Please see Figures 1-5As shown, the utility model includes a fastener body 1, with a fixed hexagonal head 101 on the top of the fastener body 1. The fixed hexagonal head 101 and the fastener body 1 are integrated into one structure. The surface of the fastener body 1 is provided with an external thread 102, and a nut 6 is screwed onto the surface of the fastener body 1. In use, the external thread 102 passes through the connecting flange 5 and is connected to the nut 6. By rotating the fixed hexagonal head 101, it is made to contact the fixed surface of the connecting parts, ensuring the stability of the connection of the connecting parts. A protective cover 2 is provided on the top of the fixed hexagonal head 101. The protective cover 2 is detachably connected to the fixed hexagonal head 101. A connecting flange 5 is provided at the bottom of the fixed hexagonal head 101. The connecting flange 5 is connected to the protective cover 2 by a strap 3. In this embodiment, a fixing ring 8 is provided on the top of the protective cover 2. At the same time, a threaded hole 501 is provided on the connecting flange 5. The fixing ring 8 is rotatably connected to one end of the strap 3. The other end of the strap 3 is connected to the threaded hole 501 by a set screw 4. The protective cover 2 covers the fixed hexagonal head 101. The strap 3 ensures that the protective cover 2 can be detachably connected to the fixed hexagonal head 101, which is convenient for disassembly and solves the problem that the fixed hexagonal head 101 is easily corroded when exposed to air.

[0026] In this embodiment, a waterproof ring 7 is provided on the top of the connecting flange 5. The waterproof ring 7 is snapped into the waterproof groove 502 on the connecting flange 5 to achieve a sealed connection with the fixed hexagonal head 101. The waterproof ring 7 and the tie 3 are made of rubber. The waterproof ring 7 can seal and waterproof the connection gap between the fastener body 1 and the end face of the connecting part. At the same time, several anti-slip ribs 503 are provided on the bottom of the connecting flange 5. The anti-slip ribs 503 have a semi-circular cross-section. The anti-slip ribs 503 can increase the frictional contact between the connecting flange 5 and the fixed surface, avoid shaking after long-term use, and improve the anti-loosening effect.

[0027] A corrosion-resistant layer is provided on the surface of the external thread 102, the fixed hexagonal head 101, and the nut 6 on the fastener body 1. The material of the corrosion-resistant layer is one of zinc plating, chromium plating, and nickel plating. The corrosion-resistant layer further improves the corrosion resistance of the bolt body and reduces the impact of external corrosive substances.

[0028] The working principle of this utility model is as follows: During use, the fastener body 1 is rotated for fixation. By rotating the fixed hexagonal head 101, the nut 6 engages with the external thread 102 of the fastener body 1, driving the connecting flange 5 to move until the connecting flange 5 contacts the fixed surface. The waterproof ring 7 between the connecting flange 5 and the fixed hexagonal head 101 seals the connection gap for waterproofing. Furthermore, the anti-slip rib 503 at the bottom of the connecting flange 5 increases the frictional contact between the connecting flange 5 and the fixed surface, improving the anti-loosening effect. Simultaneously, the protective cover 2 encloses the fixed hexagonal head 101, solving the problem of easy corrosion of the fixed hexagonal head 101 exposed to air. The strap 3 ensures that the protective cover 2 can be detachably connected to the fixed hexagonal head 101 for easy disassembly. The corrosion-resistant layer on the fastener surface further improves the corrosion resistance of the bolt body. This corrosion-resistant layer uses one of the following materials: zinc plating, chromium plating, or nickel plating, which improves the corrosion resistance of the bolt body and reduces the impact of external corrosive substances.

[0029] Therefore, the waterproof ring on the top of the connecting flange and the corrosion-resistant layer on the surface of the fastener body effectively improve its corrosion resistance. In addition, the strap ensures that the protective cover can be detachably connected to the fixed hexagonal head, which is simple in structure and easy to disassemble. At the same time, the anti-slip rib at the bottom of the connecting flange can effectively increase the frictional contact between the connecting flange and the fixed surface, thereby realizing the anti-loosening of the fastener body and avoiding shaking after long-term use, which would greatly reduce the fixing effect.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A high-strength, corrosion-resistant fastener structure, characterized in that: The fastener includes a fastener body, a fixed hexagonal head on the top of the fastener body, the fixed hexagonal head and the fastener body being an integral structure, a protective cover on the top of the fixed hexagonal head, the protective cover and the fixed hexagonal head being detachably connected, a connecting flange on the bottom of the fixed hexagonal head, the connecting flange being connected to the protective cover by a strap, and a nut being screwed onto the surface of the fastener body.

2. The high-strength corrosion-resistant fastener structure according to claim 1, characterized in that: The fastener body has an external thread on its surface, which passes through the connecting flange and connects to the nut.

3. The high-strength corrosion-resistant fastener structure according to claim 2, characterized in that: A waterproof ring is provided on the top of the connecting flange, and the waterproof ring is snapped between the connecting flange and the fixed hexagonal head to achieve a sealed connection.

4. The high-strength corrosion-resistant fastener structure according to claim 3, characterized in that: The connecting flange has a threaded hole, and one end of the strap is connected to the threaded hole by a set screw. The bottom of the connecting flange is provided with several anti-slip ribs, and the cross-section of the anti-slip ribs is semi-circular.

5. The high-strength corrosion-resistant fastener structure according to claim 4, characterized in that: The top of the protective cover is provided with a fixing ring, which is rotatably connected to one end of the strap.

6. The high-strength corrosion-resistant fastener structure according to claim 5, characterized in that: The waterproof ring and the tie are made of rubber.

7. A high-strength corrosion-resistant fastener structure according to claim 6, characterized in that: The fastener body, the external thread, and the nut are all provided with a corrosion-resistant layer, and the material of the corrosion-resistant layer is one of zinc plating, chromium plating, and nickel plating.

Images