Bolt with anti-loosening structure
By designing bolts with anti-loosening structures, using the fitting of the engaging grooves and the engaging plates, the problem of bolts being loosened under vibration and external force is solved, and the stability of the connection and operation convenience are improved.
Patent Information
- Application Number
- CN202423058022.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing bolts are prone to loosening and falling off under high-frequency vibration or extreme loads, and some bolts are not removable, which lead to difficulty in repair.
A bolt with an anti-loosening structure is designed, including bolt head, bolt body, engaging groove, plug bolt, rotating ring and engaging plate. Through the cooperation of the engaging groove and engaging plate, friction is increased to prevent loosening, and rotation stability is ensured through the movable frame and rotating column.
Effectively prevent the connector from loosening under vibration and external force, improve connection stability, reduce installation errors, and improve operational convenience and versatility.
Smart Images

Figure CN223203472U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to a bolt with an anti-loosening structure. Background Art
[0002] Bolts with anti-loosening mechanisms are specially designed to reduce or eliminate loosening caused by vibration, temperature fluctuations, external forces, and other factors. These bolts typically utilize various design techniques and material selections to increase friction between the bolts and the connected components, thereby improving the reliability and stability of the connection.
[0003] It is usually composed of a bolt body, a bolt body and other structures. Through the design of special threads and increased friction, it ensures that the locking force generated after the torque is applied can resist external vibration and load changes, thereby maintaining the fixed state. The locking mechanism of its head and the matching washer work together to further increase the contact strength between the connection part.
[0004] However, during use, although some bolts can alleviate the loosening problem to a certain extent, they still have certain limitations and it is difficult to completely eliminate the risk of falling off under high-frequency vibration or extreme loads. At the same time, some bolts will be made non-removable through welding, resulting in subsequent maintenance. Therefore, a bolt with an anti-loosening structure is proposed to solve the above problem. Utility Model Content
[0005] In order to make up for the above deficiencies, the present invention provides a bolt with an anti-loosening structure, aiming to improve the problem in the prior art that some devices fall off during use.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A bolt with an anti-loosening structure comprises a bolt head, a bolt body is fixedly connected to the bottom of the bolt head, a plurality of engaging grooves are opened inside the bolt body, a plug bolt is threadedly connected to the bottom of the bolt body, a bottom of the plug bolt is fixedly connected to a base, a rotating ring is rotatably connected to the top of the base, a plurality of engaging plates are fixedly connected to the top of the rotating ring, a plurality of engaging plates are fixedly connected to the outside of the plurality of engaging plates with a limit plate, and a rotating buckle is fixedly connected to the bottom of the base;
[0008] As a further description of the above technical solution:
[0009] Both sides of the outer portion of the bolt head are rotatably connected to a rotating column, the outer portions of the two rotating columns are fixedly connected to a limiting ring, the outer portions of the rotating column are rotatably connected to two movable frames, and the outer portions of the limiting rings are outside the two movable frames;
[0010] As a further description of the above technical solution:
[0011] The outer portion of the engaging groove is on the top of the plug bolt, and the outer portion of the engaging plate is on the top of the base bracket;
[0012] As a further description of the above technical solution:
[0013] The outer portions of the plurality of engaging plates can be respectively engaged with the inner portions of the plurality of engaging grooves;
[0014] As a further description of the above technical solution:
[0015] By moving the two movable frames, the bolt head can be driven to rotate, causing the bolt body to rotate accordingly;
[0016] As a further description of the above technical solution:
[0017] The plug bolt is threadedly connected to the inside of the bottom of the bolt body through the rotating buckle. After rotating a certain distance, the multiple clamping plates driven by the rotating ring are respectively positioned to the inside of the clamping groove.
[0018] The utility model has the following beneficial effects:
[0019] 1. In the present invention, the combination of the plug bolt and the clamping plate can prevent the connected objects from loosening and falling off, thereby enhancing the stability of the connecting parts, thereby greatly reducing the risk of loosening and falling off of the objects during the connection process, ensuring that the connecting parts can continue to prevent falling off under the action of vibration and external force, and improving the reliability of the overall structure.
[0020] 2. The present invention utilizes a movable frame design that facilitates the positioning of connected objects prior to installation, thereby ensuring accurate positioning. This design reduces installation errors, improves connection efficiency, and eliminates the need for subsequent adjustments and reinstallations, enhancing versatility and ease of use during reuse. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a three-dimensional schematic diagram of a bolt with an anti-loosening structure proposed by the present invention;
[0022] Figure 2 This is a structural schematic diagram of a rotating buckle of a bolt with an anti-loosening structure proposed by the present invention;
[0023] Figure 3 This is a schematic structural diagram of a rotating column of a bolt with an anti-loosening structure proposed by the present invention;
[0024] Figure 4This is a structural schematic diagram of a rotating ring of a bolt with an anti-loosening structure proposed by the utility model.
[0025] Legend:
[0026] 1. Bolt head; 2. Bolt body; 3. Engaging groove; 4. Plug bolt; 5. Rotating ring; 6. Engaging plate; 7. Limiting plate; 8. Bottom support; 9. Rotating buckle; 10. Rotating column; 11. Limiting ring; 12. Movable frame. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] Refer to 2 and Figure 4 The utility model provides an embodiment of a bolt with an anti-loosening structure, including a bolt head 1, the bottom of the bolt head 1 is fixedly connected to a bolt body 2, which is designed to be threadedly connected to other structures, a plurality of snap-fit grooves 3 are opened inside the bolt body 2, and a plurality of snap-fit plates 6 are fixedly connected to the top of the rotating ring 5. The snap-fit grooves 3 can prevent loosening by matching with the snap-fit plates 6. The bottom of the bolt body 2 is threadedly connected to a plug bolt 4, which is designed to be threadedly connected to the inside of the bolt body 2 to expand the area of its bottom. The bottom of the plug bolt 4 is fixedly connected to a bottom bracket 8, which is designed to be larger than the outside of the bolt body. The top of the bottom bracket 8 is rotatably connected to the rotating ring 5, through The rotation drives multiple locking plates 6, the outside of the locking groove 3 is at the top of the plug bolt 4, and the outside of the locking plate 6 is at the top of the bottom bracket 8. The outsides of multiple locking plates 6 can be respectively locked in the inside of multiple locking grooves 3, and the outsides of multiple locking plates 6 are fixedly connected to the limiting plate 7. The limiting plate 7 can support the nut required for anti-slipping. The bottom of the bottom bracket 8 is fixedly connected with a rotating buckle 9, which can drive the plug bolt 4 to rotate by twisting the rotating buckle 9. The plug bolt 4 is threadedly connected to the inside of the bottom of the bolt body 2 by rotating the buckle 9. After rotating a certain distance, the multiple locking plates 6 driven by toggling the rotating ring 5 are respectively positioned to the inside of the locking groove 3.
[0029] Reference Figure 1 and Figure 3, both sides of the outside of the bolt head 1 are rotatably connected with rotating columns 10, which are designed to rotate flexibly inside the bolt head 1. The outside of the two rotating columns 10 is fixedly connected with a limiting ring 11, which is designed to prevent the rotating column 10 from deviating during rotation. The outside of the rotating column 10 is rotatably connected to two movable frames 12, and the outside of the limiting ring 11 is outside the two movable frames 12. By shifting the two movable frames 12, the bolt head 1 can be driven to rotate, so that the bolt body 2 follows the rotation, making it convenient to twist the entire bolt body 2.
[0030] Working principle: first, place the bolt head 1 in the connecting hole of the corresponding component, and then rotate the bolt head 1 so that the thread of the bolt body 2 is firmly connected with the threaded hole of the structure. As the rotation of the bolt body 2 is completed, the plug bolt 4 can be driven to rotate under the action of the rotating buckle 9 and the bottom bracket 8. After rotating a certain distance, the rotating ring 5 begins to rotate, and the multiple internal engaging grooves 3 begin to dock with the engaging plate 6. Driven by the rotating ring 5, the engaging plate 6 can be further locked in the engaging groove 3, increasing the tightening while preventing loosening. In this process, the design of the bottom bracket 8 ensures that the bottom area is expanded, and the stability of the overall structure is increased through the fixing effect of going hand in hand. At the same time, the limit plate 7 can prevent the connected structure from detaching from the bottom of the bolt body 2;
[0031] To prepare the assembly for connection, first grasp the movable brackets 12 located on either side of the bolt head 1 and, by moving them, rotate the pivot pin 10. Guided by the retaining ring 11, the pivot pin 10 remains stable and prevents deviation, ensuring smooth rotation. As the movable brackets 12 are moved, the rotation of the pivot pin 10 synchronizes the bolt head 1, which in turn rotates the bolt body 2, effectively engaging the threaded connection component. This design facilitates manual alignment during use, followed by tightening using a tool.
[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. 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. A bolt with an anti-loosening structure, comprising a bolt head (1), characterized in that: The bottom of the bolt head (1) is fixedly connected to a bolt body (2), a plurality of engaging grooves (3) are provided inside the bolt body (2), a plug bolt (4) is threadedly connected to the bottom of the bolt body (2), a bottom of the plug bolt (4) is fixedly connected to a base (8), a top of the base (8) is rotatably connected to a rotating ring (5), a top of the rotating ring (5) is fixedly connected to a plurality of engaging plates (6), the outside of the plurality of engaging plates (6) is fixedly connected to a limiting plate (7), and a bottom of the base (8) is fixedly connected to a rotating buckle (9).
2. The bolt with an anti-loosening structure according to claim 1, characterized in that: The outer sides of the bolt head (1) are rotatably connected to rotating columns (10), the outer sides of the two rotating columns (10) are fixedly connected to limiting rings (11), the outer sides of the rotating columns (10) are rotatably connected to two movable frames (12), and the outer sides of the limiting rings (11) are outside the two movable frames (12).
3. The bolt with an anti-loosening structure according to claim 1, characterized in that: The outside of the engaging groove (3) is at the top of the plug bolt (4), and the outside of the engaging plate (6) is at the top of the base (8).
4. The bolt with an anti-loosening structure according to claim 1, characterized in that: The exteriors of the plurality of snap-fit plates (6) can be snap-fitted into the interiors of the plurality of snap-fit grooves (3) respectively.
5. The bolt with an anti-loosening structure according to claim 2, characterized in that: By moving the two movable frames (12), the bolt head (1) can be driven to rotate, causing the bolt body (2) to rotate accordingly.
6. The bolt with an anti-loosening structure according to claim 1, characterized in that: The plug bolt (4) is threadedly connected to the inside of the bottom of the bolt body (2) through the rotating buckle (9). After rotating a certain distance, the multiple engaging plates (6) driven by the rotating ring (5) are positioned correspondingly to the inside of the engaging groove (3).