Anti-loosening bolt
By using the positive and negative threads of screw A and screw B in the bolts, combined with components such as compression sleeves, insertion rods and elastic pads, the problem of traditional bolts loosening in high vibration environments is solved, and a more stable tightening is achieved. Solid effect.
Patent Information
- Application Number
- CN202423083080.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional bolts are prone to loosen or even fall off in high vibration working environments, resulting in poor tightening effect.
An anti-loosening bolt is designed, which uses the positive and negative threads of screw A and screw B, combined with components such as a compression sleeve, insertion rod and elastic pad, to prevent the nut from loosening through mutual limiting and elastic adsorption.
It effectively prevents bolts from loosening in high-vibration environments, improves the stability and reliability of fastening, and avoids the problem of bolts falling off.
Smart Images
Figure CN222376938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening bolt. Background Art
[0002] Bolts are a type of fastener consisting of a head and a screw. They need to be matched with nuts to fasten two parts with through holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.
[0003] Bolts have a wide range of applications and are used in various working environments. The vibration-proof effect of traditional bolts is relatively general. When bolts are in a high-vibration working environment for a long time, they are prone to loosening or even falling off, resulting in poor fastening effect. Utility Model Content
[0004] The utility model aims to provide an anti-loosening bolt to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-loosening bolt, comprising a screw A, a nut A matching the screw A, and a screw head fixedly arranged above the screw A, the nut A is screwed into the screw A and threadedly connected with the screw A, characterized in that: an anti-loosening component is provided on the screw A, the anti-loosening component comprises a screw B fixedly arranged below the screw A, a nut B matching the screw B, a clamping sleeve, and an insert rod, the diameter of the screw A is larger than the diameter of the screw B, the threads of the screw A and the screw B are respectively positive and negative threads, the clamping sleeve is arranged on the screw A and located below the nut A, after the nut B is screwed into the screw B and threadedly connected with the screw B, the clamping sleeve is fixedly arranged between the nut A and the nut B, a slot is provided on the bottom wall of the nut A, and a jack is provided through the nut B from top to bottom, and the insert rod can be detachably connected with the nut A and the nut B after being inserted into the jack and the slot.
[0006] Preferably, an elastic pad A and an elastic pad B are fixedly provided on the upper and lower sides of the compression sleeve respectively, the elastic pad A is located between the nut A and the compression sleeve and is fixedly connected to the two, and the elastic pad B is located between the nut B and the compression sleeve and is fixedly connected to the two.
[0007] Preferably, the anti-loosening assembly also includes a pressure pad, a magnetic ring fixedly arranged below the pressure pad, and a plurality of ratchets fixedly arranged above the pressure pad. The pressure pad is sleeved on the screw A and is located above the nut A. A magnetic groove is opened on the top wall of the nut A, and an iron sheet is fixedly arranged on the bottom wall of the magnetic groove. The magnetic ring is inserted into the magnetic groove and is magnetically connected to the iron sheet on the bottom wall of the magnetic groove.
[0008] Preferably, the anti-loosening assembly further comprises a stud, and a screw hole connected to the insertion hole is provided on the bottom wall of the nut B, and the stud is screwed into the screw hole to be fixedly connected with the nut B and the insertion rod.
[0009] Preferably, a sliding groove is provided on the outer side wall of the screw rod A, and a sliding block matching the sliding groove is fixedly provided on the compression sleeve, and the sliding block is inserted into the sliding groove and is slidably connected with the screw rod A.
[0010] Preferably, the anti-loosening assembly also includes a wave spring fixedly arranged below the screw head and sleeved on the screw rod A, and a flat washer fixedly arranged below the wave spring.
[0011] Preferably, the elastic pad A and the elastic pad B are both made of elastic rubber material, and the insertion rod is made of high-carbon steel material.
[0012] The beneficial effects of the utility model are as follows: when the utility model is used, the screw rod A is passed through the through hole on the part to be locked, the nut A is screwed into the screw rod A and threadedly connected with the screw rod A, the nut A is tightened to clamp the part to be locked between the nut A and the screw head, the compression sleeve is set on the screw rod A, the compression sleeve is located below the nut A, the nut B is screwed into the screw B and threadedly connected with the screw B, the nut B is tightened to clamp the compression sleeve between the nut A and the nut B, and the nut B further fixes the nut A on the part to be locked through the compression sleeve, which plays a role in preventing the nut A from loosening; the insertion rod is inserted into the jack and the slot, the stud is screwed into the screw hole and fixedly connected with the nut B and the insertion rod, so that the insertion rod Fixed inside the jack and the slot, since the threads of screw A and screw B are respectively positive and negative threads, the rotation directions of nut A and nut B are opposite, and when nut A and nut B are about to rotate due to vibration, nut A and nut B can limit each other through the insertion rod, thereby preventing nut A and nut B from loosening; since the diameter of screw A is larger than the diameter of screw B, it is convenient to remove nut A; in summary, the utility model has the function of preventing bolts from loosening, and solves the problem that the vibration prevention effect of traditional bolts is relatively general, and the bolts are prone to loosening or even falling off when they are in a high-vibration working environment for a long time, resulting in a poor fastening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attached Figure 1 It is a structural schematic diagram of the utility model;
[0014] Attached Figure 2 It is an explosion diagram of the utility model;
[0015] Attached Figure 3 It is a top view of the utility model;
[0016] Attached Figure 4 For attachment Figure 3 Sectional view at AA.
[0017] In the figure: 1. screw A; 2. nut A; 3. screw head; 4. screw B; 5. nut B; 6. compression sleeve; 7. insertion rod; 8. slot; 9. insertion hole; 10. elastic pad A; 11. elastic pad B; 12. pressure pad; 13. magnetic ring; 14. ratchet; 15. magnetic groove; 16. stud; 17. screw hole; 18. slide groove; 19. slider; 20. wave spring; 21. flat pad. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0019] like Figure 1-4As shown, the utility model discloses an anti-loosening bolt, comprising a screw A1, a nut A2 matching the screw A1, and a screw head 3 fixedly arranged above the screw A1, the nut A2 is screwed into the screw A1 and threadedly connected with the screw A1, the screw A1 is provided with an anti-loosening component, the anti-loosening component comprises a screw B4 fixedly arranged below the screw A1, a nut B5 matching the screw B4, a clamping sleeve 6, and an insert rod 7, the diameter of the screw A1 is larger than the diameter of the screw B4, the threads of the screw A1 and the screw B4 are respectively positive and negative threads, the clamping sleeve 6 is sleeved on the screw A1 and located below the nut A2, the nut B5 is screwed into the screw B4 and threadedly connected with the screw B4, the clamping sleeve 6 is fixedly arranged between the nut A2 and the nut B5, a slot 8 is provided on the bottom wall of the nut A2, a socket 9 is provided through the nut B5 from top to bottom, and the insert rod 7 is detachably connected to the nut A2 and the nut B5 after being inserted into the socket 9 and the slot 8. When the utility model is used, the screw rod A1 is passed through the through hole on the part to be locked, the nut A2 is screwed into the screw rod A1 and threadedly connected with the screw A1, the nut A2 is tightened to clamp the part to be locked between the nut A2 and the screw head 3, the compression sleeve 6 is sleeved on the screw rod A1, the compression sleeve 6 is located below the nut A2, the nut B5 is screwed into the screw rod B4 and threadedly connected with the screw B4, the nut B5 is tightened to clamp the compression sleeve 6 between the nut A2 and the nut B5, and the nut B5 further fixes the nut A2 on the part to be locked through the compression sleeve 6, which plays a role in preventing the nut A2 from loosening; the insertion rod 7 is inserted into the insertion hole 9 and the slot 8, the stud 16 is screwed into the screw hole 17 and fixedly connected with the nut B5 and the insertion rod 7, so that the insertion rod 7 is fixed inside the insertion hole 9 and the slot 8. Since the threads of the screw A1 and the screw B4 are respectively positive and negative threads, the rotation directions of the nut A2 and the nut B5 are opposite. When the nut A2 and the nut B5 are vibrated and are about to rotate, the nut A2 and the nut B5 can limit each other through the insertion rod 7, thereby preventing the nut A2 and the nut B5 from loosening. Since the diameter of the screw A1 is larger than the diameter of the screw B4, it is convenient to take out the nut A2. In summary, the utility model has the function of preventing the bolts from loosening, and solves the problem that the vibration prevention effect of traditional bolts is relatively general, and when the bolts are in a high-vibration working environment for a long time, it is easy to cause the bolts to loosen or even fall off, resulting in a poor fastening effect.
[0020] Preferably, the upper and lower sides of the compression sleeve 6 are respectively fixedly provided with elastic pads A10 and elastic pads B11, the elastic pads A10 are located between the nut A2 and the compression sleeve 6 and are fixedly connected to the two, and the elastic pads B11 are located between the nut B5 and the compression sleeve 6 and are fixedly connected to the two. Since the upper and lower sides of the compression sleeve 6 are respectively fixedly provided with elastic pads A10 and elastic pads B11, the nut B5 is screwed into the screw rod B4 and is threadedly connected to the screw rod B4, and the nut B5 is tightened to fix the elastic pad A10 between the nut A2 and the compression sleeve 6, and the elastic pad B11 is fixed between the nut B5 and the compression sleeve 6. When there is a slight deviation in the position of the jack 9 and the slot 8, resulting in misalignment, the nut B5 is continuously tightened to squeeze the elastic pads A10 and the elastic pads B11, and the nut B5 will rotate until the position of the jack 9 and the slot 8 coincide, which plays a role in facilitating the alignment of the jack 9 and the slot 8.
[0021] Preferably, the anti-loosening assembly also includes a pressure pad 12, a magnetic ring 13 fixedly arranged below the pressure pad 12, and a plurality of ratchet teeth 14 fixedly arranged above the pressure pad 12. The pressure pad 12 is sleeved on the screw A1 and is located above the nut A2. A magnetic groove 15 is opened on the top wall of the nut A2. An iron sheet is fixedly arranged on the bottom wall of the magnetic groove 15. The magnetic ring 13 is inserted into the magnetic groove 15 and is magnetically connected to the iron sheet on the bottom wall of the magnetic groove 15. Since a magnetic groove 15 is provided on the top wall of the nut A2 and an iron sheet is fixedly provided on the bottom wall of the magnetic groove 15, the magnetic ring 13 is inserted into the magnetic groove 15 and magnetically connected to the iron sheet on the bottom wall of the magnetic groove 15, which facilitates the disassembly and assembly of the pressure pad 12; since a plurality of ratchet teeth 14 are fixedly provided above the pressure pad 12, the ratchet teeth 14 will be embedded in the part to be locked when the nut A2 is tightened, which further prevents the nut A2 from loosening; when the surface of the part to be locked is not allowed to be damaged, the magnetic ring 13 can be pulled out of the magnetic groove 15 to remove the pressure pad 12.
[0022] Preferably, the anti-loosening assembly further comprises a stud 16, a screw hole 17 communicating with the insertion hole 9 is provided on the bottom wall of the nut B5, and the stud 16 is screwed into the screw hole 17 to be fixedly connected with the nut B5 and the insertion rod 7. Since the stud 16 is screwed into the screw hole 17 to be fixedly connected with the nut B5 and the insertion rod 7, it is convenient to disassemble and assemble the insertion rod 7.
[0023] Preferably, a slide groove 18 is provided on the outer wall of the screw rod A1, and a slider 19 matching the slide groove 18 is fixedly provided on the compression sleeve 6, and the slider 19 is inserted into the slide groove 18 and slidably connected with the screw rod A1. Since the slider 19 is inserted into the slide groove 18 and slidably connected with the screw rod A1, it is convenient for the compression sleeve 6 to slide on the screw rod A1.
[0024] Preferably, the anti-loosening assembly further includes a wave spring 20 fixedly arranged below the screw head 3 and sleeved on the screw rod A1, and a flat washer 21 fixedly arranged below the wave spring 20. Since the wave spring 20 is fixedly arranged below the screw head 3 and sleeved on the screw rod A1, when the screw head 3 is fixed, the wave spring 20 will apply elastic force to the screw head 3, so that the screw rod A1 thread and the nut A2 thread are pressed tightly, thereby preventing the screw rod A1 from loosening.
[0025] Preferably, the elastic pad A10 and the elastic pad B11 are both made of elastic rubber material, and the insertion rod 7 is made of high carbon steel material. Since the elastic pad A10 and the elastic pad B11 are both made of elastic rubber material, they have the characteristics of good elasticity and good wear resistance; since the insertion rod 7 is made of high carbon steel material, it has the characteristics of high strength and high wear resistance.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An anti-loosening bolt, comprising a screw rod A (1), a nut A (2) matching the screw rod A (1), and a screw head (3) fixedly arranged above the screw rod A (1), wherein the nut A (2) is screwed into the screw rod A (1) and threadedly connected with the screw rod A (1), characterized in that: The screw rod A (1) is provided with an anti-loosening assembly, which comprises a screw rod B (4) fixedly arranged below the screw rod A (1), a nut B (5) matched with the screw rod B (4), a clamping sleeve (6), and an insert rod (7). The diameter of the screw rod A (1) is larger than the diameter of the screw rod B (4). The threads of the screw rod A (1) and the screw rod B (4) are respectively positive and negative threads. The clamping sleeve (6) is sleeved on the screw rod A (1) and located below the nut A (2). After the nut B (5) is screwed into the screw rod B (4) and threadedly connected with the screw rod B (4), the clamping sleeve (6) is fixedly arranged between the nut A (2) and the nut B (5). A slot (8) is provided on the bottom wall of the nut A (2). A plug hole (9) is provided through the nut B (5) from top to bottom. After the plug rod (7) is inserted into the plug hole (9) and the slot (8), it is detachably connected with the nut A (2) and the nut B (5).
2. The anti-loosening bolt according to claim 1, characterized in that: An elastic pad A (10) and an elastic pad B (11) are fixedly provided on the upper and lower sides of the compression sleeve (6), respectively. The elastic pad A (10) is located between the nut A (2) and the compression sleeve (6) and is fixedly connected to the two. The elastic pad B (11) is located between the nut B (5) and the compression sleeve (6) and is fixedly connected to the two.
3. The anti-loosening bolt according to claim 1, characterized in that: The anti-loosening component also includes a pressure pad (12), a magnetic ring (13) fixedly arranged below the pressure pad (12), and a plurality of ratchet teeth (14) fixedly arranged above the pressure pad (12); the pressure pad (12) is sleeved on the screw rod A (1) and is located above the nut A (2); a magnetic groove (15) is provided on the top wall of the nut A (2); an iron sheet is fixedly arranged on the bottom wall of the magnetic groove (15); the magnetic ring (13) is inserted into the magnetic groove (15) and is magnetically connected to the iron sheet on the bottom wall of the magnetic groove (15).
4. The anti-loosening bolt according to claim 1, characterized in that: The anti-loosening assembly further comprises a stud (16), and a screw hole (17) communicating with the insertion hole (9) is formed on the bottom wall of the nut B (5). The stud (16) is screwed into the screw hole (17) to be fixedly connected with the nut B (5) and the insertion rod (7).
5. The anti-loosening bolt according to claim 1, characterized in that: A sliding groove (18) is provided on the outer wall of the screw rod A (1), and a sliding block (19) matching the sliding groove (18) is fixedly provided on the compression sleeve (6). The sliding block (19) is inserted into the sliding groove (18) and is slidably connected with the screw rod A (1).
6. The anti-loosening bolt according to claim 1, characterized in that: The anti-loosening assembly further comprises a wave spring (20) fixedly arranged below the screw head (3) and sleeved on the screw rod A (1), and a flat washer (21) fixedly arranged below the wave spring (20).
7. The anti-loosening bolt according to claim 2, characterized in that: The elastic pad A (10) and the elastic pad B (11) are both made of elastic rubber material, and the insertion rod (7) is made of high-carbon steel material.