Anti-seismic and anti-disengagement bolt standard part

Abstract

The utility model relates to the technical field of bolts, in particular to an anti-seismic and anti-disengagement bolt standard component which comprises a bolt body, a through hole is formed in an inner cavity of the bolt body, an anti-disengagement assembly is arranged in an inner cavity of the through hole, the anti-disengagement assembly comprises a conical head, and the conical head is located at the bottom of the bolt body. A fixing rod is arranged at the top of the conical head and located in an inner cavity of the through hole, a push plate is fixedly connected to the top of the fixing rod, a sliding block is arranged on the surface of the push plate, and a sliding groove matched with the sliding block is formed in the inner cavity of the through hole. The bolt main body is inserted into a mounting hole of a to-be-connected piece, a tool is clamped into the hexagonal groove in the top of the turntable to rotate the screw rod, the screw rod ascends and descends in the fixed screw sleeve through the thread pair to drive the pressing plate to compress the spring, and the pre-tightening force is adjusted according to the vibration strength requirement; the bolt body tends to move upwards under tension, and at the moment, the conical head is blocked by the base material.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to a standard bolt component that is shock-resistant and prevents detachment. Background Technology

[0002] Bolts are common mechanical parts, cylindrical threaded fasteners that are fitted with nuts. They consist of a head and a threaded shank, and are used to fasten two parts with through holes, forming a bolted connection. Bolted connections are detachable connections.

[0003] Bolts are used to secure objects, but they do not prevent them from coming loose. As a result, bolts can easily come loose when subjected to external vibrations. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a standard bolt component that is shock-resistant and prevents bolts from falling off, thus solving the problem of bolts easily falling off when subjected to external vibrations.

[0005] This utility model discloses a standard bolt component for earthquake resistance and anti-detachment, comprising a bolt body, an inner cavity with a through hole, an anti-detachment component within the through hole, the anti-detachment component including a cone head located at the bottom of the bolt body, a fixing rod at the top of the cone head located within the through hole, a push plate fixedly connected to the top of the fixing rod, a slider on the surface of the push plate, a groove in the through hole that matches the slider, a spring fixedly connected to the top of the push plate, a pressure plate fixedly connected to the top of the spring, a screw contacting the top of the pressure plate, a threaded sleeve on the surface of the screw, the surface of the threaded sleeve being fixedly connected to the inner wall of the through hole, and a turntable fixedly connected to the top of the screw. This invention involves inserting the bolt body into the mounting hole of the component to be connected, and using a tool to engage the hexagonal groove on the top of the turntable to rotate the screw. The screw moves up and down within the fixed screw sleeve via a threaded pair, driving the pressure plate to compress the spring. The preload is adjusted according to the vibration intensity requirements. When external vibration causes the component to loosen, the bolt body is under tension and tends to move upward. At this time, the cone head is blocked by the substrate and moves downward relative to the bolt body → pushing the fixed rod to the push plate → the push plate moves vertically upward along four sets of symmetrical sliding grooves → further compressing the spring. During continuous vibration, the 45°–60° cone angle of the cone head optimizes the wedge depth and resistance balance, avoiding slippage or damage to the substrate. The four sets of sliders / slides ensure that the push plate does not deviate or move up and down, preventing the component from jamming. The polytetrafluoroethylene coating blocks corrosive media during vibration and friction, maintaining the flexibility of moving parts such as the cone head and slider.

[0006] This utility model discloses a standard bolt component for earthquake resistance and anti-detachment, wherein the cone head is conical and its cone angle is 45 degrees to 60 degrees. The cone head of this utility model has a 45°–60° angle to balance the insertion resistance and anchoring depth, ensuring that it can quickly wedge into the substrate during vibration, avoiding substrate cracking caused by a cone angle of too small (<45°) or insufficient anchoring force caused by a cone angle of too large (>60°).

[0007] This utility model discloses a standard bolt component for shock resistance and anti-detachment, wherein the spring is a stainless steel compression spring with adjustable preload. The stainless steel material resists vibrations in corrosive environments, extending the shock resistance life. The adjustable preload allows the bolt to adapt to high-frequency / low-frequency vibration scenarios, improving its versatility.

[0008] This utility model discloses a standard bolt component for earthquake resistance and anti-detachment, wherein the number of the sliding groove and the slider are both four, and they are evenly distributed on the through hole and the push plate. The symmetrical four sets of guide structures eliminate the risk of uneven load on the push plate, ensure the stability of vertical movement during vibration, and avoid component jamming failure caused by unilateral wear of the slider.

[0009] This utility model discloses a standard bolt component for shock resistance and anti-detachment. The top of the turntable is provided with a hexagonal groove, which is located at the center of the top of the turntable. The hexagonal groove is directly compatible with a standard hex wrench, allowing for quick operation in confined vibration environments. The center positioning design prevents slippage and offset during adjustment, ensuring precise control of the preload.

[0010] This utility model discloses a standard bolt component for shock resistance and anti-detachment, wherein the outer surface of the bolt body is coated with a polytetrafluoroethylene anti-corrosion coating. The anti-corrosion coating reduces electrochemical corrosion caused by vibration friction, maintains the long-term reliability of the bolt body, and the surface self-lubrication reduces vibration wear and prevents rust from jamming the anti-detachment component.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The cone head of this utility model is automatically moved downward under the pressure of vibration, wedged into the substrate of the connector to form a physical anchor. The spring continuously provides downward pressure, absorbs vibration energy and drives the cone head to reset, maintaining the anchored state. The screw and screw sleeve structure allows manual adjustment of the spring preload, adapting to different vibration intensity scenarios, fundamentally solving the technical defects of traditional bolts that are easy to loosen and detach in vibration environments.

[0013] 2. The cone head of this utility model has a 45°–60° balance between insertion resistance and anchoring depth, ensuring rapid wedging into the substrate during vibration, and avoiding substrate cracking caused by an excessively small cone angle (<45°) or insufficient anchoring force caused by an excessively large cone angle (>60°).

[0014] The stainless steel material resists vibrations in corrosive environments, extending its seismic life. The adjustable preload allows the bolts to be adapted to high-frequency / low-frequency vibration scenarios, improving their versatility.

[0015] The risk of uneven load on the push plate is eliminated by symmetrical four sets of guide structures, ensuring vertical motion stability during vibration and avoiding component jamming failure caused by unilateral wear of the slider.

[0016] With its hexagonal grooves, it is directly compatible with standard hex wrenches, allowing for quick operation in confined and vibrating environments. The center positioning design prevents slippage and ensures precise control of the preload.

[0017] The anti-corrosion coating reduces electrochemical corrosion caused by vibration and friction, maintains the long-term reliability of the bolt body, and the surface self-lubrication reduces vibration wear and prevents rust from jamming the anti-loosening components. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the mating structure of the bolt body and the anti-loosening component of this utility model;

[0021] Figure 3 This is a partial cross-sectional view of the bolt body of this utility model;

[0022] Figure 4 This is a schematic diagram of the anti-fall-off component structure of this utility model.

[0023] In the diagram: 1. Bolt body; 2. Through hole; 3. Anti-loosening component; 301. Cone head; 302. Fixing rod; 303. Slider; 304. Pressure plate; 305. Screw sleeve; 306. Screw; 307. Turntable; 308. Hexagonal groove; 309. Spring; 3010. Push plate; 4. Slide groove. Detailed Implementation

[0024] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0025] Please see Figure 1-4The present invention relates to a standard bolt component for shock resistance and anti-detachment, comprising a bolt body 1, a through hole 2 in the inner cavity of the bolt body 1, an anti-detachment component 3 in the inner cavity of the through hole 2, the anti-detachment component 3 comprising a cone head 301 located at the bottom of the bolt body 1, a fixing rod 302 located at the top of the cone head 301, the fixing rod 302 located in the inner cavity of the through hole 2, a push plate 3010 fixedly connected to the top of the fixing rod 302, a slider 303 on the surface of the push plate 3010, a groove 4 adapted to the slider 303 in the inner cavity of the through hole 2, a spring 309 fixedly connected to the top of the push plate 3010, a pressure plate 304 fixedly connected to the top of the spring 309, a screw 306 in contact above the pressure plate 304, a threaded sleeve 305 on the surface of the screw 306, the surface of the threaded sleeve 305 fixedly connected to the inner wall of the through hole 2, and a turntable 307 fixedly connected to the top of the screw 306. This invention inserts the bolt body 1 into the mounting hole of the component to be connected. A tool is used to insert the hexagonal groove 308 on the top of the turntable 307 to rotate the screw 306. The screw 306 moves up and down within the fixed screw sleeve 305 through the threaded pair, driving the pressure plate 304 to compress the spring 309. The preload is adjusted according to the vibration intensity requirements. When external vibration causes the component to loosen, the bolt body 1 is pulled upwards. At this time, the cone head 301 is blocked by the substrate and moves downwards relative to the bolt body 1, pushing the fixed rod 302 to push the push plate 3010. The push plate 3010 moves vertically upwards along the four sets of symmetrical sliding grooves 4, further compressing the spring 309. During continuous vibration, the cone head 301's 45°–60° cone angle optimizes the wedge depth and resistance balance, avoiding slippage or damage to the substrate. The four sets of sliders 303 / sliding grooves 4 ensure that the push plate 3010 does not deviate or move up and down, preventing the component from jamming. The polytetrafluoroethylene coating blocks corrosive media during vibration and friction, maintaining the flexibility of moving parts such as the cone head 301 and slider 303.

[0026] The cone head 301 is conical, and its cone angle is 45 degrees to 60 degrees. The cone head 301 of this utility model balances the insertion resistance and anchoring depth at 45°–60°, ensuring that it can be quickly wedged into the substrate during vibration, avoiding substrate cracking caused by a cone angle of too small (<45°) or insufficient anchoring force caused by a cone angle of too large (>60°).

[0027] Spring 309 is a compression spring made of stainless steel, and the preload of spring 309 is adjustable. The stainless steel material resists vibration in corrosive environments, extending the vibration resistance life. The adjustable preload makes the bolt suitable for high-frequency / low-frequency vibration scenarios, improving its versatility.

[0028] The number of the slide groove 4 and the slider 303 are both four, and they are evenly distributed on the through hole 2 and the push plate 3010. The risk of off-center load on the push plate 3010 is eliminated by the symmetrical four sets of guide structures, ensuring the stability of vertical movement during vibration and avoiding component jamming failure caused by unilateral wear of the slider 303.

[0029] The top of the turntable 307 has a hexagonal groove 308, which is located at the center of the top of the turntable 307. The hexagonal groove 308 is directly compatible with standard hex wrenches, allowing for quick operation in confined and vibrating environments. The center positioning design prevents slippage and offset during adjustment, ensuring precise control of the preload.

[0030] The outer surface of the bolt body 1 is coated with a polytetrafluoroethylene anti-corrosion coating. The anti-corrosion coating reduces electrochemical corrosion caused by vibration and friction, maintains the long-term reliability of the bolt body 1, and the surface self-lubrication reduces vibration and wear, preventing rust and jamming of the anti-loosening component 3.

[0031] When using this utility model: Insert the bolt body 1 into the mounting hole of the part to be connected, and use a tool to insert the hexagonal groove 308 on the top of the turntable 307 to rotate the screw 306. The screw 306 moves up and down in the fixed screw sleeve 305 through the threaded pair, driving the pressure plate 304 to compress the spring 309. Adjust the preload according to the vibration intensity requirements. When external vibration causes the connecting part to loosen, the bolt body 1 is under tension and tends to move upward. At this time, the cone head 301 is blocked by the base material and moves downward relative to the bolt body 1, pushing the fixed screw. The fixed rod 302 pushes the plate 3010 upwards → the plate 3010 moves vertically upwards along the four sets of symmetrical sliding grooves 4 → further compressing the spring 309. During continuous vibration, the cone head 301's 45°–60° cone angle optimizes the wedge depth and resistance balance, avoiding slippage or damage to the substrate. The four sets of sliders 303 / sliding grooves 4 ensure that the push plate 3010 does not deviate or rise and fall, preventing the components from jamming. The polytetrafluoroethylene coating blocks corrosive media during vibration and friction, maintaining the flexibility of moving parts such as the cone head 301 and slider 303.

[0032] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An anti-vibration and anti-disengagement bolt standard element comprising a bolt body (1), characterized in that: The inner cavity of the bolt body (1) is provided with a through hole (2), the inner cavity of the through hole (2) is provided with an anti-falling assembly (3), the anti-falling assembly (3) comprises a tapered head (301), and the tapered head (301) is located at the bottom of the bolt body (1), the top of the tapered head (301) is provided with a fixing rod (302), and the fixing rod (302) is located in the inner cavity of the through hole (2), the top of the fixing rod (302) is fixedly connected with a push plate (3010), the surface of the push plate (3010) is provided with a sliding block (303), the inner cavity of the through hole (2) is provided with a sliding groove (4) matched with the sliding block (303), the top of the push plate (3010) is fixedly connected with a spring (309), the top of the spring (309) is fixedly connected with a pressing plate (304), the top of the pressing plate (304) is fixedly connected with a rotating disc (307).

2. The shock resistant anti-backout bolt standard of claim 1, wherein: The tapered head (301) is conical, and the taper angle is 45-60 degrees.

3. The shock resistant anti-backout bolt standard of claim 1, wherein: The spring (309) is a stainless steel compression spring (309), and the pre-tightening force of the spring (309) is adjustable.

4. The shock resistant anti-backout bolt standard of claim 1, wherein: The number of the sliding groove (4) and the sliding block (303) is four, and they are distributed equidistantly on the through hole (2) and the push plate (3010).

5. The shock resistant anti-backout bolt standard of claim 1, wherein: The top of the rotating disc (307) is provided with a hexagonal recess (308), and the hexagonal recess (308) is arranged at the center of the top of the rotating disc (307).

6. The shock resistant anti-backout bolt standard of claim 1, wherein: The outer surface of the bolt body (1) is coated with a polytetrafluoroethylene corrosion-resistant coating.

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