Anti-loosening cover-shaped nut
By introducing components such as studs, springs, pressure washers and sealing sleeves into the cap nut, the problem of the cap nut loosening or falling off in a high vibration environment is solved, and the stability and corrosion resistance in the vibration environment are achieved.
Patent Information
- Application Number
- CN202521616966.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-30
- Filing Date
- 2025-07-31
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2035-07-31
AI Technical Summary
Traditional cap nuts are prone to loosening or falling off in high-vibration environments, resulting in poor tightening results.
An anti-loosening cap nut is designed, which includes components such as a stud, a spring, a pressure washer, and a sealing sleeve. The screw is fixed by a threaded connection and the elastic force of the spring, and combined with a sealing sleeve to prevent moisture corrosion and enhance vibration resistance.
It effectively prevents the cap nut from loosening or falling off in high-vibration environments, maintains the tightening effect, prevents corrosive substances from contacting the screws, and extends the service life.
Smart Images
Figure CN223344428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuts, in particular to an anti-loosening cap nut. Background Art
[0002] As the name suggests, a cap nut is a hexagonal nut with a cap. The function of this cap is to cover the protruding screw to prevent moisture or other corrosive substances from entering, thereby playing an anti-rust role and thereby increasing the service life of the cap and the screw.
[0003] Cap nuts are used in various working environments. Traditional cap nuts have poor vibration resistance. When the cap nuts are in a high-vibration working environment, the cap nuts will be subjected to vibration for a long time, which may easily cause the cap nuts to loosen or even fall off, resulting in poor fastening effect. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-loosening cap nut 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 cap nut, comprising a cap nut, a screw hole A being provided on the bottom wall of the cap nut, characterized in that: an anti-loosening component is provided on the cap nut, the anti-loosening component comprising a stud A, a spring, a pressure pad fixedly arranged below the spring, and a sealing sleeve, the outer diameters of the spring and the pressure pad are both smaller than the diameter of the screw hole A and larger than the diameter of the stud A, the spring is located inside the screw hole A and the top end of the spring is fixedly connected to the top wall of the screw hole A, a screw hole B communicating with the screw hole A and matching the stud A is provided on the top wall of the cap nut, the stud A is screwed into the screw hole B and threadedly connected to the cap nut, the sealing sleeve is arranged on the top of the cap nut and is detachably connected to the cap nut, and the stud A is located inside the sealing sleeve.
[0006] Preferably, the anti-loosening assembly also includes a convex ring A fixedly arranged on the outside of the cap nut, a convex ring B fixedly arranged below the sealing sleeve, a threaded sleeve, and a pressure ring A fixedly arranged above the threaded sleeve. The convex ring B is located above the convex ring A and is in contact with the convex ring A. The outer side of the convex ring A is provided with a thread. After the threaded sleeve is screwed into the convex ring A, the pressure ring A is fixed above the convex ring B.
[0007] Preferably, a convex ring C is fixedly provided below the convex ring B, the cross section of the convex ring C is trapezoidal, a groove matching the convex ring C is provided on the top wall of the convex ring A, and the convex ring C is inserted into the groove and is in contact with the convex ring A.
[0008] Preferably, the anti-loosening assembly also includes a pressure ring B, a magnetic ring fixedly arranged above the pressure ring B, and a plurality of ratchets fixedly arranged below the pressure ring B. A magnetic groove is opened on the bottom wall of the cap nut, and an iron sheet is fixedly arranged on the top wall of the magnetic groove. The magnetic ring is inserted into the magnetic groove and is magnetically connected to the iron sheet on the top wall of the magnetic groove.
[0009] Preferably, the anti-loosening component also includes a pressure column and a stud B. The diameter of the pressure column is smaller than the diameter of the stud B. A screw hole C is provided on the side wall of the cap nut, which is connected to the screw hole A and matches the stud B. The pressure column is conical near one end of the spring. The pressure column is located inside the screw hole C. After the stud B is screwed into the screw hole C, it is located outside the pressure column.
[0010] Preferably, an insertion post is fixedly provided on the side of the pressure column away from the spring, and a socket is opened on the wall of the stud B facing the pressure column, and the insertion post is inserted into the socket and rotatably connected with the stud B.
[0011] Preferably, a hexagonal groove is provided on the top wall of the stud A, the sealing sleeve is an elastic rubber sleeve, and anti-slip grooves are provided on the outer side of the threaded sleeve.
[0012] The beneficial effects of the present invention are as follows: when the present invention is used, the screw is passed through the through hole on the part to be locked, one end of the screw will extend out of the through hole and be located outside the part to be locked, the protruding part of the screw is screwed into the screw hole A and is threadedly connected to the cap nut, at this time the pressure pad will press on the screw and contact the screw, tighten the cap nut to lock the part to be locked, the pressure pad will be pressed and fixed on the screw by the spring, the spring will apply elastic force to the screw and the cap nut, so that the screw thread and the screw hole A thread are tightly pressed, which plays a role in preventing the cap nut from loosening; the stud A is screwed into the screw hole B and is threadedly connected to the cap nut, and the stud A is tightened to press the stud A on the screw, so that the cap nut and The screws are further fixed, which further prevents the cap nut from loosening; the sealing sleeve is arranged on the top of the cap nut, so that the stud A is located in the sealing sleeve, and the threaded sleeve is screwed into the convex ring A, so that the convex ring B is pressed between the pressure ring A and the convex ring A, so that the sealing sleeve and the cap nut are fixed, which plays a sealing role and prevents moisture or other corrosive substances from contacting the screws; in summary, the utility model has the beneficial effect of preventing the cap nut from loosening while protecting the screws, and solves the problem that when the cap nut is in a high-vibration working environment, the cap nut will be subjected to long-term vibration, which may easily cause the cap nut to loosen or even fall off, resulting in a poor fastening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attachment Figure 1 It is a structural diagram of the utility model;
[0014] Attachment Figure 2 It is a bottom view of the utility model;
[0015] Attachment Figure 3 For attachment Figure 2 Cross-sectional view at AA in the middle;
[0016] Attachment Figure 4 This is an explosion diagram of the utility model.
[0017] In the figure: 1. Cap nut; 2. Screw hole A; 3. Stud A; 4. Spring; 5. Pressure washer; 6. Sealing sleeve; 7. Screw hole B; 8. Raised ring A; 9. Raised ring B; 10. Threaded sleeve; 11. Pressure ring A; 12. Raised ring C; 13. Groove; 14. Pressure ring B; 15. Magnetic ring; 16. Ratchet; 17. Magnetic groove; 18. Pressure column; 19. Stud B; 20. Screw hole C; 21. Insert column; 22. Insert hole; 23. Hexagonal groove; 24. Anti-slip pattern. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0019] like Figure 1-4As shown, the utility model discloses an anti-loosening cap nut, including a cap nut 1, a screw hole A2 is provided on the bottom wall of the cap nut 1, and an anti-loosening component is provided on the cap nut 1, and the anti-loosening component includes a stud A3, a spring 4, a pressure pad 5 fixedly arranged below the spring 4, and a sealing sleeve 6. The outer diameters of the spring 4 and the pressure pad 5 are smaller than the diameter of the screw hole A2 and larger than the diameter of the stud A3. The spring 4 is located inside the screw hole A2 and the top of the spring 4 is fixedly connected to the top wall of the screw hole A2. A screw hole B7 connecting with the screw hole A2 and matching the stud A3 is provided on the top wall of the cap nut 1. The stud A3 is screwed into the screw hole B7 and threadedly connected to the cap nut 1. The sealing sleeve 6 is sleeved on the top of the cap nut 1 and is detachably connected to the cap nut 1. The stud A3 is located in the sealing sleeve 6. When the utility model is used, the screw is passed through the through hole on the part to be locked, and one end of the screw will extend out of the through hole and be located outside the part to be locked. The protruding part of the screw is screwed into the screw hole A2 and is threadedly connected with the cap nut 1. At this time, the pressure pad 5 will press on the screw and contact the screw. Tighten the cap nut 1 to lock the part to be locked. The pressure pad 5 will be pressed and fixed on the screw by the spring 4. The spring 4 will apply elastic force to the screw and the cap nut 1, so that the screw thread and the screw hole A2 thread are tightly pressed, which prevents the cap nut 1 from loosening. The stud A3 is screwed into the screw hole B7 and is threadedly connected with the cap nut 1. Tighten the stud A3 so that the stud A3 is pressed on the screw, so that the cap nut 1 and the screw are further fixed. , which further prevents the cap nut 1 from loosening; the sealing sleeve 6 is sleeved on the top of the cap nut 1, so that the stud A3 is located in the sealing sleeve 6, and the threaded sleeve 10 is screwed into the convex ring A8, so that the convex ring B9 is pressed between the pressure ring A11 and the convex ring A8, so that the sealing sleeve 6 and the cap nut 1 are fixed, which plays a sealing role and prevents moisture or other corrosive substances from contacting the screw; in summary, the utility model has the beneficial effect of preventing the cap nut 1 from loosening under the premise of protecting the screw, and solves the problem that when the cap nut 1 is in a high-vibration working environment, the cap nut 1 will be subjected to long-term vibration, which may easily cause the cap nut 1 to loosen or even fall off, resulting in the problem of poor fastening effect.
[0020] Preferably, the anti-loosening assembly further includes a raised ring A8 fixedly mounted on the outside of the cap nut 1, a raised ring B9 fixedly mounted below the sealing sleeve 6, a threaded sleeve 10, and a pressure ring A11 fixedly mounted above the threaded sleeve 10. The raised ring B9 is positioned above the raised ring A8 and is in contact with the raised ring A8. The raised ring A8 has threads on its outside. After the threaded sleeve 10 is screwed into the raised ring A8, the pressure ring A11 is fixedly mounted above the raised ring B9. When the sealing sleeve 6 is installed, the sealing sleeve 6 is sleeved onto the top of the cap nut 1, with the raised ring B9 positioned above the raised ring A8 and in contact with the raised ring A8. The threaded sleeve 10 is screwed into the raised ring A8, with the raised ring B9 pressed tightly between the pressure ring A11 and the raised ring A8, thereby facilitating the assembly and disassembly of the sealing sleeve 6.
[0021] Preferably, a raised ring C12 is fixedly mounted below the raised ring B9. The raised ring C12 has a trapezoidal cross-section. A groove 13 matching the raised ring C12 is defined on the top wall of the raised ring A8. The raised ring C12 is inserted into the groove 13 and engages with the raised ring A8. Because the raised ring C12 has a trapezoidal cross-section and the groove 13 matching the raised ring C12 is defined on the top wall of the raised ring A8, inserting the raised ring C12 into the groove 13 causes the raised ring C12 to engage with the raised ring A8, thereby connecting the sealing sleeve 6 to the raised ring A8 and preventing the sealing sleeve 6 from falling off.
[0022] Preferably, the anti-loosening assembly further comprises a pressure ring B14, a magnetic ring 15 fixedly arranged above the pressure ring B14, and a plurality of ratchets 16 fixedly arranged below the pressure ring B14. A magnetic groove 17 is provided on the bottom wall of the cap nut 1, an iron sheet is fixedly arranged on the top wall of the magnetic groove 17, and the magnetic ring 15 is inserted into the magnetic groove 17 and magnetically connected to the iron sheet on the top wall of the magnetic groove 17. Since the magnetic ring 15 is inserted into the magnetic groove 17 and magnetically connected to the iron sheet on the top wall of the magnetic groove 17, it facilitates the disassembly and assembly of the pressure ring B14. Since a plurality of ratchets 16 are fixedly arranged below the pressure ring B14, when the cap nut 1 is fixed to the part to be locked, the ratchets 16 will embed into the part to be locked, thereby preventing the cap nut 1 from rotating.
[0023] Preferably, the anti-loosening assembly further comprises a pressure column 18 and a stud B19, wherein the diameter of the pressure column 18 is smaller than that of the stud B19, and a screw hole C20 is provided on the side wall of the cap nut 1, which is connected to the screw hole A2 and matches the stud B19. The pressure column 18 is tapered at one end near the spring 4, and is located inside the screw hole C20. After the stud B19 is screwed into the screw hole C20, it is located outside the pressure column 18. Since the screw hole C20 is provided on the side wall of the cap nut 1, which is connected to the screw hole A2 and matches the stud B19, the pressure column 18 can be inserted into the screw hole C20, the stud B19 can be screwed into the screw hole C20, and the stud B19 can be tightened to press the pressure column 18 against the screw. Since the pressure column 18 is tapered at one end near the spring 4, the pressure column 18 will embed into the screw, further preventing the cap nut 1 from rotating.
[0024] Preferably, a plug post 21 is fixedly provided on the side of the pressure column 18 away from the spring 4, and a socket 22 is formed on the wall of the stud B19 on the side facing the pressure column 18. The plug post 21 is inserted into the socket 22 and rotatably connected to the stud B19. Since the plug post 21 is fixedly provided on the side of the pressure column 18 away from the spring 4, it is convenient to pull out the pressure column 18.
[0025] Preferably, a hexagonal groove 23 is formed on the top wall of the stud A3, the sealing sleeve 6 is an elastic rubber sleeve, and the outer side of the threaded sleeve 10 is provided with anti-slip grooves 24. The hexagonal groove 23 formed on the top wall of the stud A3 facilitates the use of tools to disassemble and install the stud A3; the sealing sleeve 6 is an elastic rubber sleeve, which provides good sealing performance; and the anti-slip grooves 24 on the outer side of the threaded sleeve 10 prevent slipping during disassembly and installation of the threaded sleeve 10.
[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 replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An anti-loosening cap nut, comprising a cap nut (1), wherein a screw hole A (2) is provided on the bottom wall of the cap nut (1), and wherein: The cap nut (1) is provided with an anti-loosening assembly, which includes a stud A (3), a spring (4), a pressure pad (5) fixedly arranged below the spring (4), and a sealing sleeve (6). The outer diameters of the spring (4) and the pressure pad (5) are both smaller than the diameter of the screw hole A (2) and larger than the diameter of the stud A (3). The spring (4) is located inside the screw hole A (2) and the top of the spring (4) is fixedly connected to the top wall of the screw hole A (2). A screw hole B (7) communicating with the screw hole A (2) and matching the stud A (3) is opened on the top wall of the cap nut (1). The stud A (3) is screwed into the screw hole B (7) and is threadedly connected to the cap nut (1). The sealing sleeve (6) is sleeved on the top of the cap nut (1) and is detachably connected to the cap nut (1). The stud A (3) is located inside the sealing sleeve (6).
2. The anti-loosening cap nut according to claim 1, characterized in that: The anti-loosening assembly further comprises a convex ring A (8) fixedly arranged on the outside of the cap nut (1), a convex ring B (9) fixedly arranged below the sealing sleeve (6), a threaded sleeve (10), and a pressure ring A (11) fixedly arranged above the threaded sleeve (10), wherein the convex ring B (9) is located above the convex ring A (8) and is in contact with the convex ring A (8), and a thread is provided on the outside of the convex ring A (8). After the threaded sleeve (10) is screwed into the convex ring A (8), the pressure ring A (11) is fixedly arranged above the convex ring B (9).
3. The anti-loosening cap nut according to claim 2, characterized in that: A convex ring C (12) is fixedly provided below the convex ring B (9), and the cross section of the convex ring C (12) is trapezoidal. A groove (13) matching the convex ring C (12) is provided on the top wall of the convex ring A (8), and the convex ring C (12) is inserted into the groove (13) and is in contact with the convex ring A (8).
4. The anti-loosening cap nut according to claim 1, characterized in that: The anti-loosening assembly further comprises a pressure ring B (14), a magnetic ring (15) fixedly arranged above the pressure ring B (14), and a plurality of ratchet teeth (16) fixedly arranged below the pressure ring B (14). A magnetic groove (17) is provided on the bottom wall of the cap nut (1), an iron sheet is fixedly arranged on the top wall of the magnetic groove (17), and the magnetic ring (15) is inserted into the magnetic groove (17) and is magnetically connected to the iron sheet on the top wall of the magnetic groove (17).
5. The anti-loosening cap nut according to claim 1, characterized in that: The anti-loosening assembly also includes a pressure column (18) and a stud B (19). The diameter of the pressure column (18) is smaller than the diameter of the stud B (19). A screw hole C (20) connected to the screw hole A (2) and matched with the stud B (19) is opened on the side wall of the cap nut (1). The pressure column (18) is conical at one end close to the spring (4). The pressure column (18) is located inside the screw hole C (20). After the stud B (19) is screwed into the screw hole C (20), it is located outside the pressure column (18).
6. The anti-loosening cap nut according to claim 5, characterized in that: A plug post (21) is fixedly provided on the side of the pressure column (18) away from the spring (4), and a socket (22) is provided on the wall of the stud B (19) facing the pressure column (18). The plug post (21) is inserted into the socket (22) and is rotatably connected to the stud B (19).
7. The anti-loosening cap nut according to claim 2, characterized in that: A hexagonal groove (23) is provided on the top wall of the stud A (3), the sealing sleeve (6) is an elastic rubber sleeve, and the outer side of the threaded sleeve (10) is provided with anti-slip grooves (24).