Anti-loosening corrosion-resistant bolt fastener

Abstract

The utility model relates to bolt fastener technical field provides a kind of anti-falling corrosion-resistant bolt fastener, including fixed plate, the bottom of the fixed plate is provided with connecting plate, the inside of the fixed plate is provided with protective structure, the protective structure includes the movable slot being set in the inside of fixed plate, the inside of the movable slot is penetrated with bolt body. The utility model is provided with protective structure, under the action of corrosion-resistant coating, with excellent chemical corrosion resistance, bolt body can be effectively prevented from being corroded in various severe environments, prolong its service life, while it can significantly improve the tensile strength and wear resistance of bolt body, further enhance the service life and efficiency of bolt body, under the limiting effect of limiting plate, bolt body and fixed plate can be prevented from falling off, realize the function that the device is convenient to prevent falling off, to improve the applicability of the bolt fastener when using.

Description

Technical Field

[0001] This utility model relates to the field of bolt fastener technology, and in particular to a bolt fastener that is resistant to loosening and corrosion. Background Technology

[0002] Fasteners are general-purpose components used in mechanical engineering to connect and fix parts. A bolt is a cylindrical threaded fastener that needs to be used with a nut to fasten two parts with holes. To prevent bolts from falling off and corroding, and to ensure the stability and durability of the connection, a type of anti-loosening and corrosion-resistant bolt fastener is used. To address this issue, patent CN217234055U discloses an anti-loosening bolt. This anti-loosening bolt includes a bolt head and a bolt post, characterized in that: a cavity is provided within the bolt post, a tension spring is disposed within the cavity, one end of the tension spring is connected to the bottom wall of the cavity, and the other end of the tension spring is fitted with a blocking element. This improves upon current bolts, which are prone to loosening and falling off due to environmental factors such as vibration or stress. Nut loosening can cause bolt detachment, rendering the fastener ineffective. Furthermore, during use, environmental factors such as wind and rain can cause corrosion, reducing the fastener's fixing strength and leading to further fastener detachment. Although the aforementioned anti-loosening bolts prevent the nut from detaching from the bolt post when the nut falls off, their inadequate protective measures make it difficult to prevent the bolt from falling off the parts, resulting in low applicability in use. Utility Model Content

[0003] The purpose of this invention is to provide a corrosion-resistant bolt fastener that prevents loosening, thereby addressing the shortcomings of existing bolt fastener protection measures.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bolt fastener that prevents loosening and is corrosion-resistant, including a fixing plate; The bottom end of the fixed plate is provided with a connecting plate, and the interior of the fixed plate is provided with a protective structure. The protective structure includes a movable groove provided inside the fixed plate, through which a bolt body passes. The outer side of the bolt body is provided with a corrosion-resistant coating, and a limit plate is fixed on the outer wall of the bolt body at the bottom of the movable groove. A nut is provided at the bottom end of the connecting plate; A fixing structure is provided on the outside of the nut.

[0005] When using this device, the protective structure facilitates its anti-detachment function, thereby improving the applicability of the bolt fastener in use; the fixing structure facilitates its protective function, thereby improving the convenience of using the corrosion-resistant bolt fastener.

[0006] Preferably, the top end of the bolt body extends to the outside of the fixing plate.

[0007] Preferably, the bottom end of the bolt body passes through the interior of the nut, and the bolt body and the nut are connected by threaded engagement. The limiting plate prevents the bolt body from detaching from the fixing plate.

[0008] Preferably, the corrosion-resistant coating is actually an epoxy resin coating. Under the action of the corrosion-resistant coating, it exhibits excellent chemical corrosion resistance, effectively preventing the bolt body from being corroded in various harsh environments, extending its service life. Simultaneously, it significantly improves the tensile strength and wear resistance of the bolt body, further enhancing its service life and efficiency.

[0009] Preferably, the fixing structure includes a snap-fit ​​groove, a snap-fit ​​block, a reserved groove, a protective cover, and a movable plate. The protective cover is disposed on the outside of the nut. Snap-fit ​​grooves are provided on both sides of the top of the protective cover inside the connecting plate. Snap-fit ​​blocks are provided inside each snap-fit ​​groove. Reserved grooves are provided inside each snap-fit ​​block. Movable plates are fixed on both sides of the bottom of the protective cover.

[0010] Preferably, the snap-fit ​​block and the connecting plate form an engaging structure through a snap-fit ​​groove, and the bottom end of the snap-fit ​​block extends to the outside of the connecting plate and is fixedly connected to the top end of the protective cover. The engaging block and the snap-fit ​​groove work together to fix or separate the protective cover from the connecting plate.

[0011] Preferably, the protective cover and the bolt body form a sliding structure. The protective cover prevents the nut from loosening and protects it from external environmental influences.

[0012] The present invention provides an anti-loosening and corrosion-resistant bolt fastener, the advantages of which are: With its protective structure and corrosion-resistant coating, the bolt exhibits excellent chemical corrosion resistance, effectively preventing corrosion in various harsh environments and extending its service life. It also significantly improves the tensile strength and wear resistance of the bolt, further enhancing its service life and efficiency. The limiting plate prevents the bolt from detaching from the fixing plate, thus facilitating its anti-detachment function and improving the applicability of the bolt fastener. With a fixed structure, the protective cover and the connecting plate are fixed or separated by the action of the snap-fit ​​block and snap-fit ​​groove. The protective cover prevents the nut from loosening and protects the nut from the influence of the external environment, thus realizing the protective function of the device and improving the convenience of using the corrosion-resistant bolt fastener. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 5 This is a three-dimensional structural diagram of the present invention viewed from below.

[0014] The following are the annotations in the figure: 1. Fixing plate; 2. Connecting plate; 3. Protective structure; 301. Movable groove; 302. Bolt body; 303. Limiting plate; 304. Corrosion-resistant coating; 4. Nut; 5. Fixing structure; 501. Snap-fit ​​groove; 502. Snap-fit ​​block; 503. Reserved groove; 504. Protective cover; 505. Movable plate. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5 This utility model provides an anti-loosening and corrosion-resistant bolt fastener, including a fixing plate 1, a connecting plate 2 at the bottom end of the fixing plate 1, a protective structure 3 inside the fixing plate 1, the protective structure 3 including a movable groove 301 inside the fixing plate 1, a bolt body 302 passing through the inside of the movable groove 301, a corrosion-resistant coating 304 on the outside of the bolt body 302, a limiting plate 303 fixed on the outer wall of the bolt body 302 at the bottom of the movable groove 301, the top end of the bolt body 302 extending to the outside of the fixing plate 1, the bottom end of the bolt body 302 passing through the inside of the nut 4, the bolt body 302 and the nut 4 being connected by threaded engagement, and the corrosion-resistant coating 304 is actually an epoxy resin coating.

[0017] Reference Figure 2 and Figure 4 As shown, the movable bolt body 302 causes the limiting plate 303 to move inside the movable groove 301. Under the limiting action of the limiting plate 303, the bolt body 302 is prevented from falling off the fixing plate 1. The bolt body 302 passes through the interior of the connecting plate 2. At this time, the bottom end of the fixing plate 1 abuts against the top end of the connecting plate 2. The nut 4 is fixed to the outside of the bolt body 302 by a wrench, thereby fixing the connecting plate 2 and the fixing plate 1 to each other. The corrosion-resistant coating 304 is actually an epoxy resin coating. Under the action of the corrosion-resistant coating 304, it has excellent chemical corrosion resistance, which can effectively prevent the bolt body 302 from being corroded in various harsh environments, extend its service life, and significantly improve the tensile strength and wear resistance of the bolt body 302, further enhancing the service life and efficiency of the bolt body 302.

[0018] A nut 4 is provided at the bottom of the connecting plate 2. A fixing structure 5 is provided on the outside of the nut 4. The fixing structure 5 includes a snap-fit ​​groove 501, a snap-fit ​​block 502, a reserved groove 503, a protective cover 504, and a movable plate 505. The protective cover 504 is located on the outside of the nut 4. Snap-fit ​​grooves 501 are provided on both sides of the top of the protective cover 504 inside the connecting plate 2. Snap-fit ​​blocks 502 are provided inside each snap-fit ​​groove 501. Reserved grooves 503 are provided inside each snap-fit ​​block 502. Movable plates 505 are fixed on both sides of the bottom of the protective cover 504. The snap-fit ​​block 502 and the connecting plate 2 form a snap-fit ​​structure through the snap-fit ​​groove 501. The bottom end of the snap-fit ​​block 502 extends to the outside of the connecting plate 2 and is fixedly connected to the top of the protective cover 504. The protective cover 504 and the bolt body 302 form a sliding structure.

[0019] Reference Figure 2 and Figure 3 As shown, the protective cover 504 is fitted onto the outside of the nut 4 by the movable plate 505, so that the top of the snap-fit ​​block 502 abuts against the bottom of the snap-fit ​​groove 501. Pushing the protective cover 504, under the action of the reserved groove 503, the protective cover 504 will drive the snap-fit ​​block 502 to move into the inside of the snap-fit ​​groove 501. At this time, the protective cover 504 and the connecting plate 2 are fixed to each other. Under the action of the protective cover 504, the nut 4 can be prevented from loosening, and the nut 4 can be protected from the influence of the external environment. By moving the protective cover 504 by the movable plate 505, the protective cover 504 and the connecting plate 2 can be separated to facilitate the disassembly and assembly of the nut 4.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corrosion-resistant bolt fastener for preventing loosening, comprising a fixing plate (1); Its features are: The bottom end of the fixed plate (1) is provided with a connecting plate (2), and the interior of the fixed plate (1) is provided with a protective structure (3). The protective structure (3) includes a movable groove (301) provided inside the fixed plate (1). A bolt body (302) passes through the interior of the movable groove (301). A corrosion-resistant coating (304) is provided on the outer side of the bolt body (302). A limit plate (303) is fixed on the outer wall of the bolt body (302) at the bottom of the movable groove (301). The bottom end of the connecting plate (2) is provided with a nut (4); The nut (4) has a fixing structure (5) on its outer side.

2. The anti-loosening and corrosion-resistant bolt fastener according to claim 1, characterized in that: The top end of the bolt body (302) extends to the outside of the fixing plate (1).

3. The anti-loosening and corrosion-resistant bolt fastener according to claim 1, characterized in that: The bottom end of the bolt body (302) passes through the interior of the nut (4), and the bolt body (302) and the nut (4) are connected by thread engagement.

4. The anti-loosening and corrosion-resistant bolt fastener according to claim 1, characterized in that: The corrosion-resistant coating (304) is actually an epoxy resin coating.

5. The anti-loosening and corrosion-resistant bolt fastener according to claim 1, characterized in that: The fixing structure (5) includes a snap-fit ​​groove (501), a snap-fit ​​block (502), a reserved groove (503), a protective cover (504), and a movable plate (505). The protective cover (504) is located on the outside of the nut (4). Snap-fit ​​grooves (501) are provided on both sides of the top of the protective cover (504) inside the connecting plate (2). Snap-fit ​​blocks (502) are provided inside each snap-fit ​​groove (501). Reserved grooves (503) are provided inside each snap-fit ​​block (502). Movable plates (505) are fixed on both sides of the bottom of the protective cover (504).

6. The anti-loosening corrosion-resistant bolt fastener according to claim 5, characterized in that: The snap-fit ​​block (502) and the connecting plate (2) form a snap-fit ​​structure through the snap-fit ​​groove (501). The bottom end of the snap-fit ​​block (502) extends to the outside of the connecting plate (2) and is fixedly connected to the top end of the protective cover (504).

7. The anti-loosening corrosion-resistant bolt fastener according to claim 5, characterized in that: The protective cover (504) and the bolt body (302) constitute a sliding structure.

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