Locking bolt with compression structure
By designing an anti-loosening bolt with a clamping structure, the compression force of the spring is used to tighten the hand-tightening nut, solving the problem of traditional bolts loosening under vibration or dynamic load, and achieving manual disassembly and assembly as well as anti-loosening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DISCOVERER ROBOT GRP CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional bolts are prone to loosening under vibration or dynamic loads, leading to connection failure, and disassembly and assembly require tools.
An anti-loosening bolt with a clamping structure is designed, including a bolt, a clamping component, a welded fixing component, an elastic support component, and a stop rod. The hand-tightening nut is tightened by the compression force of the spring component to prevent loosening.
It enables manual assembly and disassembly while effectively preventing bolts from loosening, thus improving the stability of the connection and ease of use.
Smart Images

Figure CN224396893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-loosening bolt technology, specifically to an anti-loosening bolt with a clamping structure. Background Technology
[0002] Bolts may gradually loosen under vibration or dynamic loads, leading to connection failure. Traditional methods of bolt anti-loosening include thread-locking agents, washers, irregular nuts, and pin fixing, all of which require tools, and some of these methods can also result in loosening. This invention aims to achieve unsecured assembly and disassembly without loosening. Utility Model Content
[0003] (a) Problems to be solved
[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide an anti-loosening bolt with a clamping structure that prevents loosening and is easy to disassemble and use.
[0005] (II) Technical Solution
[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an anti-loosening bolt with a clamping structure, including a bolt, a clamping member, and a fixing member welded to one end of the bolt;
[0007] The bolt has a hand-tightening nut threaded to its free end. An elastic support is fitted on the bolt between the hand-tightening nut and the clamping member. The elastic support is also connected to a stop rod located at the upper end of the hand-tightening nut and engaged inside the bolt.
[0008] As an improvement, the elastic support is a spring sleeved on the bolt, and a through hole is provided on the bolt at the end away from the fixing member;
[0009] The stop lever is C-shaped and its lower end is connected to the lower end of the spring component, while the upper end of the stop lever extends toward the through hole.
[0010] As an improvement, the cross-sectional view of the through hole is L-shaped, and the bottom wall is inclined downward.
[0011] As an improvement, a gasket is provided between the lower end of the clamping member and the spring member.
[0012] (III) Beneficial Effects
[0013] The advantages of this utility model compared with the prior art are as follows: In this application, the spring is compressed to form an upward force, which tightens the hand-tightening nut. The hand-tightening nut tightens the straight section of the irregular compression spring and effectively blocks the opening of the irregular hole of the semi-tooth irregular hole bolt, preventing the straight section of the irregular spring from disengaging from the semi-tooth irregular hole bolt, thus effectively achieving anti-loosening. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a locking bolt with a clamping structure.
[0015] Figure 2 yes Figure 1 A schematic diagram of the structure in the AA-direction cross section.
[0016] Figure 3 This is a schematic diagram of a locking bolt with a clamping structure from a second perspective.
[0017] Figure 4 yes Figure 3 A schematic diagram of the structure in the BB-direction cross section.
[0018] Figure 5 This is a schematic diagram of a three-dimensional anti-loosening bolt with a clamping structure.
[0019] As shown in the figure: 1. Bolt; 2. Hand-tightened nut; 3. Elastic support; 4. Washer; 5. Clamping component; 6. Fixing component. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.
[0021] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0023] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0024] Please refer to the appendix carefully. Figure 1-5 An anti-loosening bolt with a clamping structure includes a bolt 1, a clamping member 5, and a fixing member 6 welded to one end of the bolt. The free end of the bolt 1 is threadedly connected to a hand-tightening nut 2. An elastic support member 3 is sleeved on the bolt 1 between the hand-tightening nut 2 and the clamping member. The elastic support member is also connected to a stop rod located at the upper end of the hand-tightening nut and engaged in the bolt.
[0025] In actual use, in order to ensure convenient disassembly and assembly, the elastic support 3 is a spring that is sleeved on the bolt, and a through hole is provided on the bolt at the end away from the fixing part; the stop rod is C-shaped and its lower end is connected to the lower end of the spring, and the upper end of the stop rod extends toward the through hole. More specifically, the cross-sectional view of the through hole is L-shaped and the bottom wall is inclined downward, and a gasket 4 is provided between the clamping part and the lower end of the spring.
[0026] In specific implementation, this utility model
[0027] A semi-tooth irregular hole bolt 1 is welded to a fixing part 6. A clamping part 5 is installed on the semi-tooth irregular hole bolt 1, and a flat washer 4 is installed on it. A spring part and a stop rod form an irregular compression spring 3, which is fitted onto the semi-tooth irregular hole bolt. A hand-tightening nut 2 is installed on top. The nut is turned down until it opens the irregular hole of the semi-tooth irregular hole bolt. The straight segment of the irregular compression spring 3 is pushed into the irregular hole of the semi-tooth irregular hole bolt. The hand-tightening nut 2 is turned up until the upper surface of the nut 2 is tangent to the straight segment of the irregular compression spring. The installation is completed. If disassembly is required, the above steps can be reversed. The irregular compression spring generates an upward force through compression, which tightens the hand-tightening nut. The hand-tightening nut tightens the straight segment of the irregular compression spring and effectively blocks the opening of the irregular hole of the semi-tooth irregular hole bolt, preventing the straight segment of the irregular spring from disengaging from the semi-tooth irregular hole bolt, thus effectively preventing loosening.
[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A locking bolt with a clamping structure, characterized in that: This includes bolts, clamping components, and fasteners welded to one end of the bolts; The bolt has a hand-tightening nut threaded to its free end. An elastic support is fitted on the bolt between the hand-tightening nut and the clamping member. The elastic support is also connected to a stop rod located at the upper end of the hand-tightening nut and engaged inside the bolt.
2. The anti-loosening bolt with a clamping structure according to claim 1, characterized in that: The elastic support is a spring sleeved on the bolt, and a through hole is provided on the bolt at the end away from the fixing member; The stop lever is C-shaped and its lower end is connected to the lower end of the spring component, while the upper end of the stop lever extends toward the through hole.
3. The anti-loosening bolt with a clamping structure according to claim 2, characterized in that: The cross-sectional view of the through hole is L-shaped, and the bottom wall is inclined downward.
4. The anti-loosening bolt with a clamping structure according to claim 2, characterized in that: A gasket is provided between the lower end of the clamping member and the spring member.