Anti-loosening high-stability fastening bolt
By designing anti-loosening, highly stable fastening bolts and employing a locking block and slotted block mechanism as well as a multiple fixing structure, the problem of bolt loosening under vibration was solved, achieving long-term stable fixing and avoiding equipment damage and property loss.
Patent Information
- Application Number
- CN202520796582.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing bolts are prone to loosening under vibration, cannot be fixed for a long time, and lack a second protective device, leading to equipment damage and property loss.
A high-stability fastening bolt designed to prevent loosening employs a locking block mechanism and a slotted block mechanism. Through the cooperation of multiple fixing structures and springs, multiple fixings are achieved, including double locking by the first nut and the second bolt. An L-shaped structure is formed by using an inclined plane structure to restrict the movement of the fixing block.
It effectively prevents bolts from loosening under vibration conditions, achieving long-term stable fixation and avoiding equipment damage and property loss caused by loosening.
Smart Images
Figure CN223839527U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bolts, specifically relating to a high-stability fastening bolt that prevents loosening. Background Technology
[0002] Bolts are a common type of fastener and are widely used in many fields such as machinery, construction, shipbuilding and aerospace. Traditional bolts mainly consist of two parts: a head and a shank, and the fastening function is achieved through threads.
[0003] Existing devices are prone to loosening and falling off due to vibration, making it impossible to secure them for extended periods. The securing devices are simple and lack a secondary protective mechanism, leading to direct property damage if the devices are damaged.
[0004] Therefore, a high-stability fastening bolt with anti-loosening features multiple fixing mechanisms, enabling the device to be used for a long time and providing a blocking function to prevent damage to the device from directly causing losses. Utility Model Content
[0005] To overcome the problems of existing technologies where devices are prone to loosening and falling off after vibration, cannot be fixed for a long time, have a single fixing device without a second protection device, and cause direct losses due to device damage, a high-stability anti-loosening fastening bolt is proposed.
[0006] The technical solution of this utility model is as follows: a high-stability anti-loosening fastening bolt, comprising a first bolt, a locking block mechanism, and a slotted block mechanism. The lower end of the first bolt is provided with a locking block mechanism, and the lower end of the locking block mechanism is provided with a slotted block mechanism. A fixing mechanism and a first nut are threaded on the outer wall of the first bolt. The locking block mechanism includes an extension column. The lower end of the first bolt is fixedly connected to the extension column. The slotted block mechanism includes a limit block, a first slot, a first stop, a second stop, a third stop, a rectangular tube, a spring, and a fourth stop. The lower end of the extension column is provided with a limit block. The upper end of the limit block is provided with a first slot. Two first stops are fixedly connected to the inner wall of the first slot. Two second stops are fixedly connected to the inner wall of the first slot. The two first stops and the two second stops are staggered. The inner walls of the two second stops are fixedly connected to a third stop. The lower end of the third stop is fixedly connected to a rectangular tube. The upper end of the inner wall of the rectangular tube is fixedly connected to the upper end of the spring. The lower end of the spring is fixedly connected to a fourth stop.
[0007] Preferably, the locking mechanism also includes a fixing post and a fixing block; the lower end of the extension post is fixedly connected to the fixing post, and the lower end of the side wall of the fixing post is fixedly connected to two fixing blocks.
[0008] Preferably, the fixing mechanism includes a first baffle, a first screw hole, a second baffle, a second screw hole, a second nut, and a second bolt. The first baffle is fixed to the side wall of the first bolt. The upper end of the first baffle has two first screw holes. The lower end of the first bolt is threaded with a second baffle. The lower end of the second baffle is at the first nut. The upper end of the second baffle has a second screw hole. The inner wall of the first screw hole is threaded with a second bolt. The second bolt passes through the first screw hole and the second screw hole in sequence and is locked by the second nut. The positions of the first screw hole and the second screw hole are corresponding.
[0009] Preferably, the width inside the rectangular tube is greater than the width of the fourth stop, and the length inside the rectangular tube is greater than the length of the fourth stop.
[0010] Preferably, the sidewall of the first stop block is in contact with the sidewall of the second stop block, the sidewall of the first stop block is in contact with the sidewall of the fixing post, and the sidewall of the second stop block is in contact with the sidewall of the third stop block.
[0011] Preferably, one end of the fixed block is an inclined surface, and the lower end of the fourth stop block is an inclined surface. Both the inclined surfaces of the fixed block and the fourth stop block are at a 45-degree angle. When the bottom end of the locking mechanism extends to the bottom end of the slot block mechanism and rotates, the inclined surface of the fixed block and the inclined surface of the fourth stop block fit together to form an L-shaped structure.
[0012] Preferably, there is a gap between the second stop and the lower end of the inner wall of the first slot, and the height of the gap is equal to the height of the fixed block.
[0013] The beneficial effects of this utility model are as follows: First, it is fixed by the first nut and the first bolt. Then, the second baffle is threaded onto the lower end of the first nut. Next, the second bolt passes through the first and second threaded holes in sequence and is locked by the second nut for a second fixation. Then, the fixing post is extended into the circle formed by the first and second blocks. Then, the groove block mechanism is rotated, and the inclined surface of the fixing block is in contact with the inclined surface of the fourth block. When the groove block mechanism is rotated, the fixing block lifts the fourth block, and the fourth block applies pressure to the spring upward. The fourth block moves upward through the rectangular tube. Then, the fixing block rotates to the lower end of the second block. When the fixing block passes the fourth block, the spring applies a downward force to the fourth block, causing the fourth block to fall. The fixing block is confined inside the first and fourth blocks, preventing the fixing mechanism and the first nut from falling off. The fixing part slides off from the lower end of the first bolt. This solves the problems of the prior art where the device is easy to loosen and fall off after vibration, cannot be fixed for a long time, has a single fixing device, lacks a second protective device, and the device damage will directly lead to property loss. Attached Figure Description
[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of a high-stability anti-loosening fastening bolt according to this utility model.
[0015] Figure 2 The diagram shown is a second three-dimensional structural schematic of a high-stability anti-loosening fastening bolt according to this utility model.
[0016] Figure 3 The diagram shows a three-dimensional structural schematic of a locking block mechanism for an anti-loosening, highly stable fastening bolt according to this utility model.
[0017] Figure 4 The diagram shown is a three-dimensional structural schematic of a slotted block mechanism for an anti-loosening, highly stable fastening bolt according to this utility model.
[0018] Figure 5 The diagram shows a three-dimensional structural schematic of a fixing mechanism for an anti-loosening, highly stable fastening bolt according to this utility model.
[0019] The markings in the attached diagram are as follows: 1. First bolt; 2. Clamping mechanism; 201. Extension column; 202. Fixing column; 203. Fixing block; 3. Groove mechanism; 301. Limiting block; 302. First groove; 303. First stop block; 304. Second stop block; 305. Third stop block; 306. Rectangular tube; 307. Spring; 308. Fourth stop block; 4. Fixing mechanism; 401. First baffle; 402. First screw hole; 403. Second baffle; 404. Second screw hole; 405. Second nut; 406. Second bolt; 5. First nut. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-5This utility model provides an embodiment of a high-stability anti-loosening fastening bolt, comprising a first bolt 1, a locking mechanism 2, and a slotted block mechanism 3. The lower end of the first bolt 1 is provided with the locking mechanism 2, and the lower end of the locking mechanism 2 is provided with the slotted block mechanism 3. A fixing mechanism 4 and a first nut 5 are threaded onto the outer wall of the first bolt 1. The locking mechanism 2 includes an extension post 201; the lower end of the first bolt 1 is fixedly connected to the extension post 201. The slotted block mechanism 3 includes a limit block 301, a first slot 302, a first stop 303, a second stop 304, a third stop 305, a rectangular tube 306, a spring 307, and a first nut 5. The lower end of the extension column 201 is provided with a limit block 301. The upper end of the limit block 301 is provided with a first slot 302. Two first blocks 303 are fixedly connected to the inner wall of the first slot 302. Two second blocks 304 are fixedly connected to the inner wall of the first slot 302. The two first blocks 303 and the two second blocks 304 are interleaved. A third block 305 is fixedly connected to the inner wall of the two second blocks 304. A rectangular tube 306 is fixedly connected to the lower end of the third block 305. The upper end of the inner wall of the rectangular tube 306 is fixedly connected to the upper end of the spring 307. A fourth block 308 is fixedly connected to the lower end of the spring 307.
[0022] In use, firstly, the first nut 5 and the first bolt 1 are used to fix it. Then, the second baffle 403 is threaded onto the lower end of the first nut 5. Next, the second bolt 406 is passed through the first screw hole 402 and the second screw hole 404 in sequence and locked with the second nut 405 for a second fixation. Then, the fixing post 202 is extended into the circle formed by the first baffle 303 and the second baffle 304. Then, the groove block mechanism 3 is rotated, and the inclined surface of the fixing block 203 is in contact with the inclined surface of the fourth baffle 308. When the groove block mechanism 3 is rotated, the fixing block 203... 3. The fourth stop 308 is lifted up, and the fourth stop 308 applies pressure to the spring 307. The fourth stop 308 moves upward through the rectangular tube 306. Then the fixing block 203 rotates to the lower end of the second stop 304. When the fixing block 203 rotates past the fourth stop 308, the spring 307 applies a downward force to the fourth stop 308, causing the fourth stop 308 to fall down. The fixing block 203 is restricted inside the first stop 303 and the fourth stop 308, preventing the fixing mechanism 4 and the first nut 5 from falling off. The fixing part slides off from the lower end of the first bolt 1.
[0023] Please see Figure 3 In this embodiment, the locking mechanism 2 also includes a fixing post 202 and a fixing block 203; the lower end of the extension post 201 is fixedly connected to the fixing post 202, and the lower end of the side wall of the fixing post 202 is fixedly connected to two fixing blocks 203, which increases the structure and makes the device more robust.
[0024] Please see Figure 5In this embodiment, the fixing mechanism 4 includes a first baffle 401, a first screw hole 402, a second baffle 403, a second screw hole 404, a second nut 405, and a second bolt 406. The first baffle 401 is fixed to the side wall of the first bolt 1. Two first screw holes 402 are opened through the upper end of the first baffle 401. The second baffle 403 is threadedly installed at the lower end of the first bolt 1. The second baffle 403 is at the lower end of the first nut 5. The second screw hole 404 is opened through the upper end of the second baffle 403. The second bolt 406 is threadedly installed on the inner wall of the first screw hole 402. The second bolt 406 passes through the first screw hole 402 and the second screw hole 404 in sequence and is locked by the second nut 405. The positions of the first screw hole 402 and the second screw hole 404 are corresponding to strengthen the fixing of the first nut 5 and prevent the first nut 5 from falling off.
[0025] Please see Figure 4 In this embodiment, the width inside the rectangular tube 306 is greater than the width of the fourth stop 308, and the length inside the rectangular tube 306 is greater than the length of the fourth stop 308. When the fourth stop 308 is subjected to upward pressure, the fourth stop 308 can enter the interior of the rectangular tube 306.
[0026] Please see Figure 4 In this embodiment, the sidewall of the first stop 303 is in contact with the sidewall of the second stop 304, the sidewall of the first stop 303 is in contact with the sidewall of the fixing post 202, and the sidewall of the second stop 304 is in contact with the sidewall of the third stop 305. The devices are fastened together to prevent damage caused by vibration.
[0027] Please see Figure 3 and Figure 4 In this embodiment, one end of the fixing block 203 is an inclined surface, and the lower end of the fourth stop block 308 is an inclined surface. The inclined surfaces of the fixing block 203 and the fourth stop block 308 are both 45 degrees. When the bottom end of the locking block mechanism 2 extends to the bottom end of the slot block mechanism 3 and rotates, the inclined surface of the fixing block 203 and the inclined surface of the fourth stop block 308 fit together to form an L-shaped structure.
[0028] Please see Figure 4 In this embodiment, there is a gap between the second stop 304 and the lower end of the inner wall of the first slot 302. The height of the gap is equal to the height of the fixed block 203. When the fixed block 203 rotates, the inclined surface presses the fourth stop 308 upward, and the fixed block 203 can enter the lower end of the first slot 302.
[0029] Working principle: First, the first nut 5 and the first bolt 1 are used to fix it. Then, the second baffle 403 is threaded onto the lower end of the first nut 5. Next, the second bolt 406 is passed through the first screw hole 402 and the second screw hole 404 in sequence and locked with the second nut 405 for a second fixation. Then, the fixing post 202 is extended into the circle formed by the first stop block 303 and the second stop block 304. Then, the groove block mechanism 3 is rotated, and the inclined surface of the fixing block 203 is in contact with the inclined surface of the fourth stop block 308. When the groove block mechanism 3 is rotated, the fixing block 203... 03. The fourth stop 308 is lifted up, and the fourth stop 308 applies pressure to the spring 307. The fourth stop 308 moves upward through the rectangular tube 306. Then the fixing block 203 rotates to the lower end of the second stop 304. When the fixing block 203 rotates past the fourth stop 308, the spring 307 applies a downward force to the fourth stop 308, causing the fourth stop 308 to fall down. The fixing block 203 is confined inside the first stop 303 and the fourth stop 308, preventing the fixing mechanism 4 and the first nut 5 from falling off. The fixing part slides off from the lower end of the first bolt 1.
Claims
1. A high-stability anti-loosening fastening bolt, comprising a first bolt (1), a locking mechanism (2), and a slotting mechanism (3), characterized in that: The lower end of the first bolt (1) is provided with a locking mechanism (2), and the lower end of the locking mechanism (2) is provided with a slotted block mechanism (3). The outer wall thread of the first bolt (1) is threaded with a fixing mechanism (4) and a first nut (5). The locking mechanism (2) includes an extension column (201). The lower end of the first bolt (1) is fixedly connected to the extension column (201). The slotted block mechanism (3) includes a limit block (301), a first slot (302), a first stop (303), a second stop (304), a third stop (305), a rectangular tube (306), a spring (307), and a fourth stop (308). The lower end of the extension column (201) is provided with a limit block. The upper end of the positioning block (301) is provided with a first slot (302). The inner wall of the first slot (302) is fixed with two first stops (303) and two second stops (304). The two first stops (303) and the two second stops (304) are interleaved. The inner wall of the two second stops (304) is fixed with a third stop (305). The lower end of the third stop (305) is fixed with a rectangular tube (306). The upper end of the inner wall of the rectangular tube (306) is fixed with the upper end of a spring (307). The lower end of the spring (307) is fixed with a fourth stop (308).
2. The anti-loosening, high-stability fastening bolt according to claim 1, characterized in that: The locking mechanism (2) also includes a fixed post (202) and a fixed block (203); the lower end of the extension post (201) is fixedly connected to the fixed post (202), and the lower end of the side wall of the fixed post (202) is fixedly connected to two fixed blocks (203).
3. The anti-loosening, high-stability fastening bolt according to claim 1, characterized in that: The fixing mechanism (4) includes a first baffle (401), a first screw hole (402), a second baffle (403), a second screw hole (404), a second nut (405), and a second bolt (406). The first baffle (401) is fixed to the side wall of the first bolt (1). The upper end of the first baffle (401) has two first screw holes (402) through it. The lower end of the first bolt (1) is threaded with the second baffle (403). The second baffle (403) is at the lower end of the first nut (5). The upper end of the second baffle (403) has a second screw hole (404) through it. The inner wall of the first screw hole (402) is threaded with the second bolt (406). The second bolt (406) passes through the first screw hole (402) and the second screw hole (404) in sequence and is locked by the second nut (405). The positions of the first screw hole (402) and the second screw hole (404) are corresponding.
4. The anti-loosening, high-stability fastening bolt according to claim 1, characterized in that: The width inside the rectangular tube (306) is greater than the width of the fourth stop (308), and the length inside the rectangular tube (306) is greater than the length of the fourth stop (308).
5. The anti-loosening, high-stability fastening bolt according to claim 2, characterized in that: The side wall of the first stop (303) is in contact with the side wall of the second stop (304), the side wall of the first stop (303) is in contact with the side wall of the fixing post (202), and the side wall of the second stop (304) is in contact with the side wall of the third stop (305).
6. The anti-loosening, high-stability fastening bolt according to claim 2, characterized in that: One end of the fixed block (203) is an inclined surface, and the lower end of the fourth stop block (308) is an inclined surface. The inclined surfaces of the fixed block (203) and the fourth stop block (308) are both 45 degrees. When the bottom end of the locking block mechanism (2) extends to the bottom end of the slot block mechanism (3) and rotates, the inclined surface of the fixed block (203) and the inclined surface of the fourth stop block (308) fit together to form an L-shaped structure.
7. The anti-loosening, high-stability fastening bolt according to claim 2, characterized in that: There is a gap between the lower end of the inner wall of the second stop (304) and the first slot (302), and the height of the gap is equal to the height of the fixed block (203).