Anti-loosening self-locking fixing nut
By setting an expanded locking ring and a conical locking ring on the fixing bolt, the screwing movement of the nut is used to achieve the extrusion deformation of the locking ring, which solves the problem of nut loosening and ensures that the bolts firmly clamp the workpiece for a long time.
Patent Information
- Application Number
- CN202422864114.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When existing bolts fix the workpiece, the nuts are prone to loosening, resulting in a reduced fixation effect during long-term use and a risk of falling off.
The anti-loosening self-locking fixing nut design is adopted. By installing the first and second expansion locking rings and conical locking rings on the fixing bolts, and an expansion groove is set on the locking ring. The screwing movement of the nut is used to achieve the extrusion deformation of the locking ring, ensuring that the nut is firmly fixed on the bolts.
The nut is not loosened on the fixing bolt for a long time, and the clamping of the workpiece is stable, avoiding loosening and falling off, improving the fixing reliability for long-term use.
Smart Images
Figure CN223215575U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing nuts, in particular to an anti-loosening self-locking fixing nut. Background Art
[0002] When fixing a workpiece with a bolt in the prior art, the bolt is inserted into the workpiece, and then the nut on the bolt is screwed, and the workpiece is squeezed and limited by the nut to achieve a fixed setting. However, during long-term use, the nut on the bolt is prone to displacement and loosening, which greatly reduces the effect of the fixed locking. In addition, there is a risk of the nut falling off during long-term use. Therefore, an anti-loosening self-locking fixing nut is needed to solve the above-mentioned problems. Utility Model Content
[0003] The purpose of the utility model is to provide an anti-loosening self-locking fixing nut to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-loosening self-locking fixing nut, comprising a fixing bolt and a clamping workpiece, the clamping workpiece is clamped on the fixing bolt, the bottom end of the fixing bolt is fixedly installed with a second expansion locking ring, the bottom thread of the fixing bolt is rotatably provided with a second fixing nut, the bottom end of the second fixing nut is fixedly connected with a second conical locking ring, and the second conical locking ring is evenly provided with second expansion grooves.
[0005] Preferably, a first expansion locking ring is fixedly mounted on the upper portion of the fixing bolt.
[0006] Preferably, a first fixing nut is rotatably mounted on the upper thread of the fixing bolt.
[0007] Preferably, a first conical locking ring is fixedly connected to the upper end of the first fixing nut, and first expansion grooves are evenly formed on the first conical locking ring.
[0008] Preferably, the first expansion locking ring is located inside the first conical locking ring and below the first expansion groove.
[0009] Preferably, the second expansion locking ring is located inside the second conical locking ring, and the clamped workpiece is clamped and fixed between the first fixing nut and the second fixing nut.
[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0011] The second locking ring is pressed against the second expansion ring and is locked by the locking mechanism, so that the first and second locking nuts can be locked together after the first and second expansion rings are pressed against each other and locked. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the main working state of the utility model;
[0013] Figure 2 This is a schematic diagram of the main three-dimensional structure of the utility model;
[0014] Figure 3 This is a schematic diagram of the main body split structure of the utility model;
[0015] Figure 4 This is a schematic diagram of the upper structure of the fixing bolt of the present utility model.
[0016] In the figure: 1-fixing bolt, 2-clamping workpiece, 3-first conical locking ring, 4-first fixing nut, 5-second fixing nut, 6-second conical locking ring, 7-second expansion groove, 8-first expansion groove, 9-second expansion locking ring, 10-first expansion locking ring. DETAILED DESCRIPTION
[0017] 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.
[0018] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4The utility model provides an embodiment: an anti-loosening self-locking fixing nut, including a fixing bolt 1 and a clamping workpiece 2, the clamping workpiece 2 is clamped and fixed on the fixing bolt 1, the bottom end of the fixing bolt 1 is fixedly installed with a second expansion locking ring 9, the bottom thread of the fixing bolt 1 is rotatably provided with a second fixing nut 5, the bottom end of the second fixing nut 5 is fixedly connected with a second conical locking ring 6, and the second conical locking ring 6 is evenly provided with second expansion grooves 7.
[0019] A first expansion locking ring 10 is fixedly mounted on the upper portion of the fixing bolt 1 .
[0020] The upper portion of the fixing bolt 1 is threadedly mounted with a first fixing nut 4 .
[0021] The upper end of the first fixing nut 4 is fixedly connected to the first conical locking ring 3 , and the first conical locking ring 3 is evenly provided with first expansion grooves 8 .
[0022] The first expansion locking ring 10 is located inside the first conical locking ring 3 and below the first expansion groove 8. The second expansion locking ring 9 is located inside the second conical locking ring 6. The first expansion locking ring 10 and the second expansion locking ring 9 realize the function of supporting deformation locking, and clamp the workpiece 2 between the first fixing nut 4 and the second fixing nut 5 to achieve fixation.
[0023] Working principle: During use, the fixing bolt 1 is inserted into the clamping workpiece 2, and the clamping workpiece 2 is located between the first fixing nut 4 and the second fixing nut 5. By screwing the second fixing nut 5 and the first fixing nut 4, the clamping workpiece 2 can be fixed between the first fixing nut 4 and the second fixing nut 5, and multiple clamping workpieces 2 fixed between the first fixing nut 4 and the second fixing nut 5 can be fixedly arranged. When the second fixing nut 5 and the first fixing nut 4 are screwed and moved on the fixing bolt 1 to clamp and fix the clamping workpiece 2, when the second fixing nut 5 rotates and moves along the thread of the fixing bolt 1, the second conical locking ring 6 will be squeezed and contacted with the second expansion locking ring 9, and the second expansion locking ring 9 will The bottom end of the second conical locking ring 6 is squeezed, deformed and locked through the second expansion groove 7, so that after the second fixing nut 5 moves to the specified position on the fixing bolt 1, auxiliary fixation and limitation are achieved through the locked and fixed second conical locking ring 6. Similarly, after the first fixing nut 4 moves to the specified position along the fixing bolt 1, the first conical locking ring 3 is supported, squeezed, deformed and locked by the first expansion locking ring 10 through the first expansion groove 8, so that the first fixing nut 4 and the second fixing nut 5 can achieve their own locking and fixation after fixing the clamped workpiece 2, so that after long-term use, the first fixing nut 4 and the second fixing nut 5 can be firmly locked on the fixing bolt 1 and will not be displaced or loosened, and the clamped workpiece 2 can be firmly fixed and limited.
[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An anti-loosening self-locking fixing nut, comprising a fixing bolt (1) and a clamping workpiece (2), characterized in that: The clamped workpiece (2) is clamped and fixed on the fixing bolt (1); a second expansion locking ring (9) is fixedly installed on the bottom end of the fixing bolt (1); a second fixing nut (5) is rotatably provided on the bottom thread of the fixing bolt (1); a second conical locking ring (6) is fixedly connected to the bottom end of the second fixing nut (5); and second expansion grooves (7) are evenly provided on the second conical locking ring (6).
2. The anti-loosening self-locking fixing nut according to claim 1, characterized in that: A first expansion locking ring (10) is fixedly mounted on the upper portion of the fixing bolt (1).
3. The anti-loosening self-locking fixing nut according to claim 2, characterized in that: The upper portion of the fixing bolt (1) is threadedly mounted with a first fixing nut (4).
4. The anti-loosening self-locking fixing nut according to claim 3, characterized in that: The upper end of the first fixing nut (4) is fixedly connected to a first conical locking ring (3), and the first conical locking ring (3) is evenly provided with first expansion grooves (8).
5. The anti-loosening self-locking fixing nut according to claim 4, characterized in that: The first expansion locking ring (10) is located inside the first conical locking ring (3) and below the first expansion groove (8).
6. The anti-loosening self-locking fixing nut according to claim 5, characterized in that: The second expansion locking ring (9) is located inside the second conical locking ring (6), and the clamped workpiece (2) is clamped and fixed between the first fixing nut (4) and the second fixing nut (5).