High-strength anti-loosening fastener for automobile
The design of the anti-loosening mechanism solves the problem of loosening of automotive fasteners during use, achieving a high-strength anti-loosening fastening effect and improving the safety and stability of the fasteners.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-20
AI Technical Summary
Existing automotive fasteners are prone to torque decay, component structural crushing, and loosening of bolt connections during long-term use, leading to vehicle body swaying and affecting safety.
An anti-loosening mechanism is adopted, including transmission elements such as a translational convex ring, guide groove, guide strip, drive ring, socket and slot. Through the insertion and rotation of the threaded connection, the thread is locked in place, reducing the probability of fastener loosening.
It improves the safety of automotive fasteners, reduces the probability of fastener loosening, and enhances the connection stability and wear resistance between fasteners and automotive components.
Smart Images
Figure CN224017519U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile fastener, specifically is a high strength anti looseness fastener for automobile. BACKGROUND
[0002] In order to realize the lightweight of whole car, the structure and material of important connecting parts such as vehicle body and chassis are designed and optimized, and materials such as aluminum alloy or magnesium alloy are adopted, and fasteners are used for assembly and fixation in the connecting process, and in the prior art, the patent with authorized publication number CN 218760829 U discloses a high-strength fastener, which comprises a fastener body, the fastener body comprises a nut, a slot is formed in the top of the nut, a reinforcing lining plate is arranged on the inner side wall of the slot, a reinforcing rib is connected and installed outside the nut, a stud is connected and installed at the center of the bottom of the nut, a reinforcing assembly capable of effectively improving the strength is arranged at the bottom of the nut, a nut is arranged outside the stud, and a gasket is arranged outside the stud and at the top of the nut, the strength of the fastener can be greatly improved by arranging the reinforcing assembly, thereby effectively improving the service life of the fastener to a certain extent, however, in the use process of the device, the threads of the fasteners are connected and locked, thereby fastening the automobile parts, during the long-term use of the automobile, torque attenuation and part surface crushing phenomena occur in the relationship of part structure, the body shakes during the driving of the automobile, and the bolt connection part is prone to looseness and sliding phenomenon, therefore, the utility model provides a high-strength anti-looseness fastener for automobile. UTILITARIAN CONTENT
[0003] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a high-strength anti-looseness fastener for automobile, which can perform thread loosening and sliding locking treatment on the thread connection part of the installed automobile fastener through a transmission element, reduce the probability of fastener loosening, improve the use safety of the automobile fastener, and effectively solve the problems in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme: a high-strength anti-looseness fastener for automobile, which comprises an outer screw rod, an outer nut is connected to the outer side of the outer screw rod, an annular dovetail groove one is formed in the left side of the nut, a nut is arranged at the right end of the outer screw rod, and a loosening prevention mechanism is further included.
[0005] The anti-loose mechanism comprises a translation convex ring, a guide groove, a guide strip, a driving ring, a socket and a socket, the translation convex ring is slidably connected to the inside of the annular dovetail groove I, the inside of the translation convex ring is provided with the guide strip, the outside of the outer screw is provided with the guide groove, the guide strip is slidably connected with the guide groove, the outside of the translation convex ring is slidably provided with the driving ring, the right side of the driving ring is provided with the socket, the left side of the nut is provided with uniformly distributed sockets, the socket is inserted with the adjacent socket, the device can be screwed and loosened by the transmission element, the threaded connection part of the installed automobile fastener is locked, the probability of fastener loosening is reduced, and the use safety of the automobile fastener is improved.
[0006] Further, the outside of the outer screw is movably sleeved with two gaskets, so as to avoid relative fastening wear between the contact surface of the fastening part of the fastener and the automobile part.
[0007] Further, the left and right sides of the gasket are provided with annular grooves, and the inside of the annular groove is provided with uniformly distributed rubber sheets, so as to increase the contact resistance between the nut and the corresponding automobile part, and reduce the relative movement phenomenon between the nut and the automobile part.
[0008] Further, the anti-loose mechanism further comprises six telescopic columns and springs, the six telescopic columns and springs are respectively arranged between the translation convex ring and the driving ring, and the springs are movably sleeved with the outer ends of the adjacent telescopic columns, so that the inner socket of the high-strength anti-loose fastener for automobile can be automatically inserted with the adjacent socket.
[0009] Further, the anti-loose mechanism further comprises a limiting assembly, the limiting assembly comprises an annular dovetail groove II, a sliding seat, a rotating clamping seat and a clamping column I, the annular dovetail groove II is provided on the outside of the driving ring, the inside of the annular dovetail groove II is slidably connected with the sliding seat, the middle part of the sliding seat is rotatably connected with the rotating clamping seat through the rotating shaft, the upper side of the nut is provided with the clamping column I, and the rotating clamping seat and the clamping column I are matched and installed to limit the separation of the insertion part after the inner socket of the high-strength anti-loose fastener for automobile is inserted with the adjacent socket.
[0010] Further, the limiting assembly further comprises a clamping column II, the clamping column II is arranged on the outside of the translation convex ring, and the clamping column II is matched and installed with the rotating clamping seat, so that the driving ring is limited by the clamping column II during the fastening process of the high-strength anti-loose fastener for automobile, and then the socket is inserted with the adjacent socket.
[0011] Further, the outside of the outer screw is provided with a ceramic coating, by improving the wear resistance and corrosion resistance of the fastener itself, the probability of damage of the outer screw due to these factors is reduced, and then the connection fastening strength of the device to the automobile part is improved.
[0012] Compared with the prior art, the automobile high-strength anti-loose fastener has the following advantages:
[0013] When the automobile high-strength anti-loose fastener is used, the thread connection part of the installed automobile fastener can be treated by thread loosening and reverse movement locking through the translation convex ring, the guide groove, the guide strip, the driving ring, the socket, the insertion groove and the limiting assembly and the insertion and rotation clamping between elements, the probability of fastener loosening is reduced, and the use safety of the automobile fastener is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a structure schematic view of the utility model;
[0015] Fig. 2 It is a nut structure schematic view of the utility model;
[0016] Fig. 3 It is an enlarged structure schematic view of A of the utility model.
[0017] In the figure: 1 outer screw rod, 2 nut, 3 nut, 4 gasket, 5 annular groove, 6 rubber sheet, 7 anti-loose mechanism, 71 translation convex ring, 72 guide groove, 73 guide strip, 74 telescopic column, 75 spring, 76 driving ring, 77 socket, 78 insertion groove, 79 limiting assembly, 791 annular dovetail groove two, 792 sliding seat, 793 rotating clamping seat, 794 clamping column one, 795 clamping column two. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0019] Please refer to Figs. 1-3The embodiment provides a technical scheme: a high-strength anti-loose fastener for an automobile, which comprises an outer screw rod 1, a nut 3 is connected to the outer side of the outer screw rod 1 in a threaded mode, an annular dovetail groove one is formed in the left side of the nut 3, a screw cap 2 is arranged at the right end of the outer screw rod 1, two gaskets 4 are movably sleeved on the outer side of the outer screw rod 1, annular grooves 5 are formed in the left and right sides of the gaskets 4, rubber sheets 6 are evenly arranged in the annular grooves 5, a ceramic coating is arranged on the outer side of the outer screw rod 1, when the fastener is used to connect and fasten automobile parts, the outer screw rod 1 is inserted through the corresponding connecting holes of the automobile parts and is connected with the nut 3 in a threaded mode, the two gaskets 4 are movably sleeved on the outer side of the outer screw rod 1, one of the two gaskets 4 is in contact with the left side of the nut 3, and the other is in contact with the screw cap 2 of the outer screw rod 1, the gaskets 4 are used to avoid relative sliding wear between the nut 3 and the screw cap 2 and the corresponding contact surfaces of the automobile parts during the fastening process of the fastener, the rubber sheets 6 are used to increase the contact resistance between the nut 3 and the screw cap 2 and the corresponding automobile parts, the relative movement between the nut 3 and the screw cap 2 and the automobile parts is reduced, the fastening stability of the device to the automobile parts is improved, the ceramic coating is an inorganic high-temperature-resistant coating, has excellent high-temperature stability and insulation performance, can maintain excellent wear resistance, corrosion resistance and oxidation resistance in a high-temperature environment, the wear resistance and corrosion resistance of the fastener are improved, the probability that the outer screw rod 1 is damaged due to these factors is reduced, the connecting and fastening strength of the device to the automobile parts is improved, and the anti-loose mechanism 7 is further arranged.
[0020] The anti-loose mechanism 7 comprises a translation convex ring 71, a guide groove 72, a guide strip 73, a driving ring 76, a socket 77 and a plug groove 78, the translation convex ring 71 is slidingly connected to the inside of the annular dovetail groove one, the inside of the translation convex ring 71 is provided with the guide strip 73, the outside of the outer screw rod 1 is provided with the guide groove 72, the guide strip 73 is slidingly connected with the guide groove 72, the outside of the translation convex ring 71 is slidingly provided with the driving ring 76, the right side of the driving ring 76 is provided with the socket 77, the left side of the nut 3 is provided with the plug groove 78 which is uniformly distributed, the socket 77 is inserted with the adjacent plug groove 78, the anti-loose mechanism 7 further comprises six telescopic columns 74 and six springs 75, the six telescopic columns 74 and the six springs 75 are respectively arranged between the translation convex ring 71 and the driving ring 76, the spring 75 is movably sleeved with the outer end of the adjacent telescopic column 74, the anti-loose mechanism 7 further comprises a limiting assembly 79, the limiting assembly 79 comprises an annular dovetail groove two 791, a sliding seat 792, a rotary clamping seat 793 and a clamping column one 794, the annular dovetail groove two 791 is provided on the outside of the driving ring 76, the inside of the annular dovetail groove two 791 is slidingly connected with the sliding seat 792, the middle part of the sliding seat 792 is rotatably connected with the rotary clamping seat 793 through a rotating shaft, the upper side of the nut 3 is provided with the clamping column one 794, the rotary clamping seat 793 is installed in cooperation with the clamping column one 794, the limiting assembly 79 further comprises a clamping column two 795, the clamping column two 795 is arranged on the outside of the translation convex ring 71, the clamping column two 795 is installed in cooperation with the rotary clamping seat 793, the rotary clamping seat 793 is slid along the annular dovetail groove two 791 through the sliding seat 792 to be transversely aligned with the clamping column two 795, then the rotary clamping seat 793 is reversely rotated around the axis of the rotating shaft while a left pulling force is applied to the rotary clamping seat 793, so that the rotary clamping seat 793 drives the driving ring 76 to move left through the sliding connection of the sliding seat 792 and the annular dovetail groove two 791, the telescopic end of the telescopic column 74 and the spring 75 are contracted, so that the rotary clamping seat 793 is rotationally connected with the clamping column two 795, at this time, the driving ring 76 moves left to drive the socket 77 to move away from the plug groove 78, the insertion of the socket 77 and the plug groove 78 is released, and the socket 77 moves away from the plug groove 78 to be locked in position, as the nut 3 gradually rotates towards the screw cap 2 of the outer screw rod 1, the nut 3 drives the translation convex ring 71 to move synchronously through the sliding connection of the annular dovetail groove one and the translation convex ring 71, the translation convex ring 71 drives the guide strip 73 to move synchronously along the guide groove 72, when the nut 3, the outer screw rod 1 and the screw cap 2 are about to be completely connected and fastened between the automobile parts, at this time, the rotary clamping seat 793 is reversely rotated to be separated from the clamping column two 795, the driving ring 76 drives the socket 77 to move right through the compression reset force of the spring 75, so that the socket 77 is automatically and completely inserted with the adjacent plug groove 78 at this time through the right movement, the rotary locking between the nut 3 and the outer screw rod 1 is realized through the insertion between the socket 77 and the plug groove 78 and the rotary limiting between the guide groove 72 and the guide strip 73, thereby avoiding the thread connection relaxation phenomenon of the automobile fastener.Subsequently, the rotating clamping seat 793 is actuated by the same principle to be horizontally aligned with the clamping column 794, and then the rotating clamping seat 793 is rotated in the reverse direction to be rotationally clamped with the clamping column 794, thereby locking the horizontal movement of the driving ring 76 at this time (when the socket 77 is fully inserted with the adjacent socket 78, the position of the rotating clamping seat 793 at this time can just meet the rotational clamping between itself and the clamping column 794), avoiding the phenomenon that the socket 77 and the socket 78 are separated due to the interference of automobile part vibration, and the device can perform thread loosening locking treatment on the threaded connection part of the installed automobile fastener through the transmission element, reduce the probability of fastener loosening, and improve the use safety of the automobile fastener.
[0021] The utility model provides a kind of high-strength anti-loose fastener for automobile working principle as follows: using fastener to connect the fastening of automobile component, outer screw rod 1 is passed through the connecting hole of automobile component corresponding and is connected with nut 3 thread, the outside of outer screw rod 1 is movably sleeved with two gaskets 4, two gaskets 4 one with the left side of nut 3 contact, another with the nut 2 of outer screw rod 1 contact, by gasket 4 to avoid the relative sliding wear between nut 3 and nut 2 and the contact surface of automobile component corresponding in fastener fastening process, the contact resistance between nut 3 and nut 2 and corresponding automobile component is increased by rubber sheet 6, the relative movement between nut 3 and nut 2 and automobile component is reduced, to improve the fastening stability of device to automobile component, rotate the card seat 793 through sliding seat 792 along annular dovetail groove two 791 to rotate the card seat 793 and card column two 795 transverse alignment, subsequently around the axis of rotation shaft reverse rotation rotate the card seat 793 while exerting left pulling force to rotate the card seat 793, so that rotate the card seat 793 through sliding seat 792 and the sliding joint of annular dovetail groove two 791 drive ring 76 left shift, telescopic column 74 telescopic end and spring 75 shrink, so that rotate the card seat 793 and card column two 795 rotate joint, drive ring 76 left shift drives socket 77 away from insertion slot 78, while the insertion of socket 77 and insertion slot 78 is limited to socket 77 away from insertion slot 78 after itself away from position lock, with nut 3 gradually rotating to the nut 2 of outer screw rod 1 close, nut 3 is connected through annular dovetail groove one and translation convex ring 71 sliding, to drive translation convex ring 71 synchronous movement, translation convex ring 71 drives guide strip 73 along guide slot 72 synchronous movement, when nut 3, outer screw rod 1 and nut 2 cooperate fast to be completely connected and fastened between automobile components, reverse rotate the card seat 793 to make it and card column two 795 joint separation at this time, the compression reset elastic force of spring 75 makes drive ring 76 drive socket 77 right shift, so that socket 77 is automatically inserted into adjacent insertion slot 78 by right shift, by the insertion between socket 77 and insertion slot 78 and the rotation limit between guide slot 72 and guide strip 73, so that nut 3 and outer screw rod 1 are locked between rotation, to avoid the thread connection relaxation phenomenon of automobile fastener, subsequently rotate the card seat 793 to make it and card column one 794 horizontal alignment by the same principle, subsequently reverse rotation rotate the card seat 793 to make it and card column one 794 rotate joint, to lock the horizontal movement of drive ring 76 at this time (when socket 77 and adjacent insertion slot 78 are completely inserted, the position of rotate the card seat 793 just can satisfy the rotate joint between itself and card column one 794), avoid the insertion separation phenomenon between socket 77 and insertion slot 78 caused by automobile component vibration interference, ceramic coating is a kind of inorganic high-temperature-resistant coating, with excellent high-temperature stability and insulation performance, it can maintain excellent wear resistance, corrosion resistance and oxidation resistance in high-temperature environment, by improving the wear resistance, corrosion resistance of fastener itself,The probability of damage of the outer screw rod 1 due to these factors is reduced, and the connecting fastening strength of the device to the automobile parts is improved.
[0022] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A high-strength anti-loosening fastener for automobiles, comprising an external threaded rod (1), wherein a nut (3) is threadedly connected to the outer side of the external threaded rod (1), the nut (3) has an annular dovetail groove on its left side, and a nut (2) is provided at the right end of the external threaded rod (1), characterized in that: It also includes an anti-loosening mechanism (7); Anti-loosening mechanism (7): It includes a translational convex ring (71), a guide groove (72), a guide bar (73), a drive ring (76), a socket (77), and a slot (78). The translational convex ring (71) is slidably connected to the inside of the annular dovetail groove. The inside of the translational convex ring (71) is provided with a guide bar (73). The outer side of the external screw (1) is provided with a guide groove (72). The guide bar (73) is slidably connected to the guide groove (72). The outer side of the translational convex ring (71) is slidably provided with a drive ring (76). The right side of the drive ring (76) is provided with a socket (77). The left side of the nut (3) is provided with evenly distributed slots (78). The socket (77) is inserted into the adjacent slot (78).
2. The high-strength anti-loosening fastener for automobiles according to claim 1, characterized in that: Two washers (4) are movably sleeved on the outer side of the external screw (1).
3. The high-strength anti-loosening fastener for automobiles according to claim 2, characterized in that: The gasket (4) has annular grooves (5) on both the left and right sides, and the annular grooves (5) are provided with uniformly distributed rubber sheets (6) inside.
4. The high-strength anti-loosening fastener for automobiles according to claim 1, characterized in that: The anti-loosening mechanism (7) also includes telescopic columns (74) and springs (75). There are six telescopic columns (74) and six springs (75). The six telescopic columns (74) and springs (75) are respectively arranged between the translation convex ring (71) and the drive ring (76). The springs (75) are all movably sleeved with the outer end of the adjacent telescopic column (74).
5. A high-strength anti-loosening fastener for automobiles according to claim 1, characterized in that: The anti-loosening mechanism (7) also includes a limiting component (79), which includes an annular dovetail groove II (791), a slide (792), a rotating bracket (793), and a locking post I (794). The annular dovetail groove II (791) is opened on the outer side of the drive ring (76). The slide (792) is slidably connected inside the annular dovetail groove II (791). The middle part of the slide (792) is rotatably connected to the rotating bracket (793) through a rotating shaft. The locking post I (794) is provided on the upper side of the nut (3). The rotating bracket (793) and the locking post I (794) are installed together.
6. A high-strength anti-loosening fastener for automobiles according to claim 5, characterized in that: The limiting component (79) also includes a second locking post (795), which is located on the outside of the translational protrusion (71) and is installed in conjunction with the rotating mounting base (793).
7. A high-strength anti-loosening fastener for automobiles according to claim 1, characterized in that: The outer side of the external screw (1) is provided with a ceramic coating.