Anti-loosening fastener
By designing a combination of limiting ring and limiting plate, preventing fasteners from loosening, solving the problem of loosening of traditional fasteners under vibration and impact, and improving the stability and safety of electronic products.
Patent Information
- Application Number
- CN202421786161.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-26
AI Technical Summary
Traditional fasteners are prone to loosening after long-term operation, resulting in product performance degradation and safety hazards.
An anti-loosening fastener is designed, including a combination of limit ring, limit slot and limit plate. Through the mutual cooperation between limit ring, limit slot and limit plate, the bolt head is avoided to rotate and ensure the stability of the fastener.
It significantly reduces fastener looseness, avoids faults and safety accidents, and improves the overall safety and reliability of the product.
Smart Images
Figure CN223049189U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, and more specifically, to an anti-loosening fastener. Background Art
[0002] With the rapid development of technology, electronic products have become an indispensable part of modern society. Their application fields cover multiple aspects such as communication, entertainment, medical treatment, and industrial control. In these electronic products, fasteners, as key components for connecting and fixing various parts, directly affect the overall stability, safety, and service life of the products.
[0003] However, during the actual use of electronic products, the problem of fastener loosening has always been a challenge that cannot be ignored. Due to the complex internal structure of electronic products, the compact space between components, and the frequent influence of various factors such as vibration, temperature change, and electromagnetic interference, traditional fasteners such as the combination of ordinary bolts and nuts often loosen after long-term operation. This loosening not only leads to a decline in product performance but may also cause faults such as short circuits and open circuits, and even pose a safety hazard to users. Therefore, we have made improvements and proposed an anti-loosening fastener. Summary of the Invention
[0004] The purpose of the utility model is to address the problem that traditional fasteners such as the combination of ordinary bolts and nuts often loosen after long-term operation.
[0005] To achieve the above-mentioned invention purpose, the utility model provides an anti-loosening fastener to improve the above problems.
[0006] Specifically, this application is as follows:
[0007] An anti-loosening fastener includes a limit ring. A plurality of limit grooves are provided on one side of the limit ring. A bolt head is inserted into the limit ring, and one end of the bolt head is fixedly connected to a screw rod. A hexagonal groove is provided on the side of the bolt head away from the screw rod. A limit plate is rotatably arranged on the side wall of the hexagonal groove, and the outer surface of the limit plate is inserted into the inner wall of the limit groove.
[0008] As a preferred technical solution of this application, a groove is provided on the side wall of the hexagonal groove, and a connecting shaft is fixedly installed in the groove. The limit plate is sleeved on the outer surface of the connecting shaft.
[0009] As a preferred technical solution of this application, a circular groove is provided on the side surface of the limit plate, and a coil spring is sleeved on the outer surface of the connecting shaft and located in the circular groove. The two ends of the coil spring are respectively fixedly connected to the circular groove and the connecting shaft.
[0010] As a preferred technical solution of the present application, a rivet nut is threadedly connected to the outer surface of the screw rod, and a protruding end is provided at one end of the rivet nut close to the gasket.
[0011] As a preferred technical solution of the present application, a gasket is sleeved on the outer surface of the screw rod, and the gasket is located between the rivet nut and the bolt head.
[0012] As a preferred technical solution of the present application, a plurality of first limiting holes are formed in the gasket.
[0013] As a preferred technical solution of the present application, a plurality of limiting rods are fixedly connected to the side of the limiting ring away from the limiting groove, and the outer surface of the limiting rod is inserted into the first limiting hole.
[0014] As a preferred technical solution of the present application, a first to-be-fixed member and a second to-be-fixed member are sleeved on the outer surface of the screw rod and located between the rivet nut and the gasket. A first through hole for the rivet nut to pass through is formed in the first to-be-fixed member, and a second through hole for inserting the protruding end is formed in the second to-be-fixed member.
[0015] As a preferred technical solution of the present application, a plurality of second limiting holes are formed between the first to-be-fixed member and the second to-be-fixed member, and the outer surface of the limiting rod is inserted into the second limiting hole.
[0016] As a preferred technical solution of the present application, the diameters of the gasket and the limiting ring are larger than the diameter of the second through hole.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] In the solution of the present application:
[0019] In order to solve the problem that in the prior art, fasteners such as ordinary bolts and nuts often become loose after long-term operation, in the present application, by providing a limiting ring, a limiting groove and a limiting plate, after the screw rod fixes two to-be-fixed members together, after the limiting ring is connected to one of the to-be-fixed members, through the mutual cooperation of the limiting ring, the limiting groove and the limiting plate, the bolt head can be limited, preventing the bolt head from rotating, thereby reducing the rotation of the screw rod under harsh working conditions such as vibration and impact, ensuring the stability of the fastener. Due to the remarkable anti-loosening effect, it can effectively avoid failures and safety accidents caused by the loosening of the fastener, thus improving the overall safety and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic structural diagram of the anti-loosening fastener provided by the present application;
[0021] Figure 2 It is the Figure 2 exploded view of the anti-loosening fastener provided by the present application;
[0022] Figure 3 The rear view structure schematic diagram of the anti-loosening fastener provided by this application Figure 1 ;
[0023] Figure 4 The exploded view of the anti-loosening fastener provided by this application Figure 3 ;
[0024] Figure 5 The partial sectional view structure schematic diagram of the bolt head of the anti-loosening fastener provided by this application
[0025] Labels in the figure:
[0026] 1. Rivet nut; 101. Protruding end; 2. Limiting ring; 3. Limiting groove; 4. Gasket; 401. First limiting hole; 5. Limiting rod; 6. Bolt head; 601. Screw rod; 602. Hexagonal groove; 7. Groove; 8. Connecting shaft; 9. Limiting plate; 10. Circular groove; 11. Torsion spring; 12. Second limiting hole; 13. First component to be fixed; 14. Second component to be fixed Detailed implementation manners
[0027] In order to enable those skilled in the art to better understand the solution of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model
[0028] As recorded in the background art, during the actual use of electronic products, the problem of fastener loosening has always been a challenge that cannot be ignored. Due to the complex internal structure of electronic products, the compact space between components, and the frequent influence of various factors such as vibration, temperature change, and electromagnetic interference, traditional fasteners such as ordinary bolts and nuts often loosen after long-term operation. This loosening not only leads to a decline in product performance but may also cause faults such as short circuits and open circuits, and even pose potential safety hazards to users
[0029] To solve this technical problem, this utility model provides an anti-loosening fastener
[0030] Specifically, please refer to Figures 1 - 5 , the anti-loosening fastener specifically includes:
[0031] The limiting ring 2 is provided with a plurality of limiting grooves 3 on one side. A bolt head 6 is inserted into the limiting ring 2, and one end of the bolt head 6 is fixedly connected with a screw rod 601. A hexagonal groove 602 is provided on the side of the bolt head 6 away from the screw rod 601. A limiting plate 9 is rotatably arranged on the side wall of the hexagonal groove 602, and the outer surface of the limiting plate 9 is inserted into the inner wall of the limiting groove 3.
[0032] For the anti-loosening fastener provided by the present utility model, in this application, through the arranged limiting ring 2, limiting grooves 3 and limiting plate 9, after the screw rod 601 fixes two parts to be fixed together, after the limiting ring 2 is connected with one of the parts to be fixed, through the mutual cooperation of the limiting ring 2, limiting grooves 3 and limiting plate 9, the bolt head 6 can be limited, preventing the bolt head 6 from rotating, thereby reducing the rotation of the screw rod 601 under harsh working conditions such as vibration and impact, ensuring the stability of the fastener. Due to the remarkable anti-loosening effect, it can effectively avoid failures and safety accidents caused by the loosening of the fastener, thus improving the overall safety and reliability of the product.
[0033] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings.
[0034] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.
[0035] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0036] Embodiment 1, please refer to Figures 1 - 5 , an anti-loosening fastener, including a limiting ring 2, a plurality of limiting grooves 3 are provided on one side of the limiting ring 2. A bolt head 6 is inserted into the limiting ring 2, and one end of the bolt head 6 is fixedly connected with a screw rod 601. A hexagonal groove 602 is provided on the side of the bolt head 6 away from the screw rod 601. A limiting plate 9 is rotatably arranged on the side wall of the hexagonal groove 602, and the outer surface of the limiting plate 9 is inserted into the inner wall of the limiting groove 3. In this application, through the arranged limiting ring 2, limiting grooves 3 and limiting plate 9, after the screw rod 601 fixes two parts to be fixed together, after the limiting ring 2 is connected with one of the parts to be fixed, through the mutual cooperation of the limiting ring 2, limiting grooves 3 and limiting plate 9, the bolt head 6 can be limited, preventing the bolt head 6 from rotating, thereby reducing the rotation of the screw rod 601 under harsh working conditions such as vibration and impact, ensuring the stability of the fastener. Due to the remarkable anti-loosening effect, it can effectively avoid failures and safety accidents caused by the loosening of the fastener, thus improving the overall safety and reliability of the product.
[0037] Furthermore, asFigure 5 As shown, a groove 7 is formed on the side wall of the hexagonal groove 602. A connecting shaft 8 is fixedly installed in the groove 7. A limiting plate 9 is sleeved on the outer surface of the connecting shaft 8. The connecting shaft 8 can support the limiting plate 9 to install the limiting plate 9 in the groove 7.
[0038] Further, as Figure 5 shown, a circular groove 10 is formed on the side surface of the limiting plate 9. A coil spring 11 is sleeved on the outer surface of the connecting shaft 8 and is located in the circular groove 10. Two ends of the coil spring 11 are fixedly connected to the circular groove 10 and the connecting shaft 8 respectively. The acting force of the coil spring 11 can make the limiting plate 9 keep inserted into the limiting groove 3 without external force. When a hexagonal wrench is inserted into the hexagonal groove 602, the limiting plate 9 can be pushed to rotate and separate from the limiting groove 3. After the hexagonal wrench is separated from the hexagonal groove 602, the acting force of the coil spring 11 can drive the limiting plate 9 to rotate and reset to insert into the limiting groove 3.
[0039] Example 2 further optimizes the anti-loosening fastener provided in Example 1. Specifically, as Figures 1 - 4 shown, a blind rivet nut 1 is threadedly connected to the outer surface of the screw rod 601. A protruding end 101 is arranged at one end of the blind rivet nut 1 close to the gasket 4. The blind rivet nut 1 is connected to the workpiece to be fixed by cooperating with the protruding end 101 in a blind riveting manner.
[0040] Further, as Figure 1 and Figure 2 shown, a gasket 4 is sleeved on the outer surface of the screw rod 601. The gasket 4 is located between the blind rivet nut 1 and the bolt head 6. The gasket 4 is made of rubber. The elasticity of the rubber provides an adjustment space for the bolt head 6 in the final stage of tightening, so that the limiting plate 9 is aligned with the limiting groove 3.
[0041] Further, as Figure 2 shown, a plurality of first limiting holes 401 are formed in the gasket 4.
[0042] Further, as Figure 2 shown, a plurality of limiting rods 5 are fixedly connected to one side of the limiting ring 2 away from the limiting groove 3. The outer surface of the limiting rod 5 is inserted into the first limiting hole 401. The arrangement of the first limiting hole 401 enables the gasket 4 to avoid the limiting rod 5 and prevents the gasket 4 from interfering with the limiting rod 5.
[0043] Example 3 further optimizes the anti-loosening fastener provided in Example 1 or 2. Specifically, as Figure 2As shown, a first component to be fixed 13 and a second component to be fixed 14 are sleeved on the outer surface of the screw 601 and are located between the rivet nut 1 and the gasket 4. A first through hole for the rivet nut 1 to pass through is formed in the first component to be fixed 13, and a second through hole for inserting the protruding end 101 is formed in the second component to be fixed 14. The second through hole is used to enable the second component to be fixed 14 to avoid the protruding end 101, so that the first component to be fixed 13 and the second component to be fixed 14 are attached together.
[0044] Further, as Figure 2 shown, a plurality of second limiting holes 12 are formed between the first component to be fixed 13 and the second component to be fixed 14. The outer surface of the limiting rod 5 is inserted into the second limiting holes 12. The limiting of the limiting ring 2 can be achieved by the insertion of the second limiting holes 12 and the limiting rod 5, and the rotation of the limiting ring 2 can be avoided.
[0045] Further, the diameters of the gasket 4 and the limiting ring 2 are larger than the diameter of the second through hole, so that the limiting ring 2 and the gasket 4 can cooperate with each other to fix the second component to be fixed 14 and the first component to be fixed 13 together.
[0046] The using process of the anti-loosening fastener provided by the present utility model is as follows:
[0047] When it is necessary to fix two components together, the first component to be fixed 13 and the second component to be fixed 14 are used in this application to represent two components to be fixed together. First, second limiting holes 12 are formed in the first component to be fixed 13 and the second component to be fixed 14. The rivet nut 1 and the protruding end 101 are fixed to the first component to be fixed 13 by riveting. Then, the limiting rod 5 is inserted into the first limiting hole 401 and then into the second limiting hole 12. The screw 601 is passed through the limiting ring 2 and then threadedly connected to the rivet nut 1. When a hexagon wrench is inserted into the hexagon slot 602, the hexagon wrench pushes the limiting plate 9 to rotate until it is separated from the limiting slot 3. Then, the screw 601 is tightened and the limiting plate 9 is aligned with the limiting slot 3. After the hexagon wrench is separated from the hexagon slot 602, the acting force of the coil spring 11 can drive the limiting plate 9 to rotate and reset to insert into the limiting slot 3.
[0048] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0049] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the accompanying drawings, but they do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields are equally within the scope of the patent protection of the present utility model.
Claims
1. An anti-loosening fastener, characterized in that: The invention comprises a limiting ring (2), a plurality of limiting grooves (3) are provided on one side of the limiting ring (2), a bolt head (6) is inserted into the limiting ring (2), and one end of the bolt head (6) is fixedly connected to a screw rod (601), a hexagonal groove (602) is provided on the side of the bolt head (6) away from the screw rod (601), a limiting plate (9) is rotatably provided on the side wall of the hexagonal groove (602), and the outer surface of the limiting plate (9) is inserted into the inner wall of the limiting groove (3); A groove (7) is provided on the side wall of the hexagonal groove (602), a connecting shaft (8) is fixedly installed in the groove (7), and the limiting plate (9) is sleeved on the outer surface of the connecting shaft (8); A circular groove (10) is formed on the side of the limit plate (9), and a coil spring (11) located in the circular groove (10) is sleeved on the outer surface of the connecting shaft (8), and two ends of the coil spring (11) are respectively fixedly connected to the circular groove (10) and the connecting shaft (8); The outer surface of the screw rod (601) is threadedly connected to a rivet nut (1), and a protruding end (101) is provided at one end of the rivet nut (1) close to the gasket (4).
2. The anti-loosening fastener according to claim 1, characterized in that: A gasket (4) is sleeved on the outer surface of the screw rod (601), and the gasket (4) is located between the rivet nut (1) and the bolt head (6).
3. The anti-loosening fastener according to claim 2, characterized in that: The gasket (4) is provided with a plurality of first limiting holes (401).
4. The anti-loosening fastener according to claim 3, characterized in that: A plurality of limiting rods (5) are fixedly connected to a side of the limiting ring (2) away from the limiting groove (3), and the outer surfaces of the limiting rods (5) are plugged into the first limiting holes (401).
5. The anti-loosening fastener according to claim 4, characterized in that: The outer surface of the screw rod (601) is sleeved with a first part to be fixed (13) and a second part to be fixed (14) located between the rivet nut (1) and the gasket (4); the first part to be fixed (13) is provided with a first through hole for the rivet nut (1) to pass through, and the second part to be fixed (14) is provided with a second through hole for plugging into the protruding end (101).
6. The anti-loosening fastener according to claim 5, characterized in that: A plurality of second limiting holes (12) are provided between the first to-be-fixed member (13) and the second to-be-fixed member (14), and the outer surface of the limiting rod (5) is plugged into the second limiting holes (12).
7. The anti-loosening fastener according to claim 6, characterized in that: The diameters of the gasket (4) and the limiting ring (2) are greater than the diameter of the second through hole.