Double-thread dislocation type lock bolt assembly

Abstract

The utility model discloses a double-thread staggered type lock bolt assembly which comprises a hexagonal screw head, a transition light column is arranged at one end of the hexagonal screw head, a first threaded column is arranged at one end of the transition light column, a second threaded column is arranged at one end of the first threaded column, and a limiting groove is formed in the connecting position of the first threaded column and the second threaded column. A first nut is screwed to the outer side of the first threaded column, a second nut is screwed to the outer side of the second threaded column, and an elastic rib frame is installed on the inner side of the limiting groove. Through the designed elastic rib frame and the limiting groove, the first nut and the second nut are screwed through the first threaded column and the second threaded column in the using process, the elastic rib frame is clamped through the limiting groove, the elastic rib frame is supported between the second nut in the fixing process, and the pre-tightening force loss caused by vibration can be compensated through the elasticity of the elastic rib frame and the elastic piece; therefore, the fixation is more stable.

Description

Technical Field

[0001] This utility model belongs to the field of anti-loosening bolt technology, specifically relating to a double-threaded staggered anti-loosening bolt assembly. Background Technology

[0002] Anti-loosening bolt assemblies are widely used in vibration-prone fields such as machinery, transportation, and aviation. Their core technology lies in overcoming the attenuation of thread preload caused by long-term vibration.

[0003] Existing anti-loosening bolt assemblies rely on the frictional deformation of the nut and threads to strengthen mechanical locking during use. However, they can still loosen over long-term use, leading to unstable detachment during fixing. Therefore, it is necessary to design a double-threaded staggered anti-loosening bolt assembly to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a double-threaded misaligned anti-loosening bolt assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-threaded misaligned anti-loosening bolt assembly, including a hexagonal screw head, one end of which is provided with a transition post, one end of which is provided with a first threaded post, one end of which is provided with a second threaded post, and a limiting groove is provided at the connection between the first threaded post and the second threaded post, a first nut is screwed onto the outer side of the first threaded post, a second nut is screwed onto the outer side of the second threaded post, and an elastic rib is installed on the inner side of the limiting groove.

[0006] Preferably, the threads of the first threaded post and the second threaded post have opposite directions, and the inner diameter of the first threaded post is the same as the outer diameter of the second threaded post.

[0007] Preferably, an elastic sheet is provided on one side of the elastic rib frame, and a limiting groove is provided on one side of the first nut, with one end of the elastic sheet inserted into the limiting groove.

[0008] Preferably, a positioning groove is provided on one side of the second nut, and the positioning groove engages with the elastic rib.

[0009] Preferably, a dovetail groove is formed on the outer surface of the transition light column, and the depth of the dovetail groove gradually changes in a trapezoidal shape.

[0010] Preferably, a fastening elastic frame is provided on the outer side of the transition light column, and a positioning groove is provided on one side of the hexagonal screw head, with one end of the fastening elastic frame engaging in the positioning groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Through the designed elastic rib and limiting groove, the first nut and the second nut are screwed together by the first threaded post and the second threaded post during use, and the elastic rib is locked by the limiting groove. When fixed, the elastic rib is supported between the second nut. The elasticity of the elastic rib and the elastic plate can compensate for the loss of preload caused by vibration, thereby ensuring more stable fixation.

[0013] 2. Through the design of the fastening elastic frame, the dovetail groove forms an axial rib for the transition light column during use, thereby reducing the deformation and bending of the transition light column. The fastening elastic frame and the positioning groove provide more stable support, and the elasticity of the fastening elastic frame ensures stronger fastening force, thus ensuring more stable bolt fixing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the end structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the first nut structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the elastic rib frame structure of this utility model;

[0018] In the diagram: 1. Hexagonal screw head; 2. Fastening elastic frame; 3. First threaded post; 4. Second threaded post; 5. Limiting groove; 6. First nut; 7. Second nut; 8. Elastic rib frame; 9. Limiting slot; 10. Transition light post; 11. Dovetail groove; 12. Positioning groove; 13. Elastic sheet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figures 1 to 4This utility model provides a technical solution: a double-threaded staggered anti-loosening bolt assembly, including a hexagonal screw head 1, a transition post 10 at one end of the hexagonal screw head 1, a first threaded post 3 at one end of the transition post 10, a second threaded post 4 at one end of the first threaded post 3, and a limiting groove 5 at the connection between the first threaded post 3 and the second threaded post 4. A first nut 6 is screwed onto the outer side of the first threaded post 3, and a second nut 7 is screwed onto the outer side of the second threaded post 4. The first nut 6 is screwed onto the first threaded post 3 first to fix it, and the elastic bracket 2 is supported in the fixing hole to ensure tightness. Then, the elastic plate 13 on the elastic bracket 8 is engaged in the limiting groove 9, and the second nut 7 is screwed onto the second threaded post 4 and pressed tightly against the elastic bracket 8 for reinforcement. The elastic bracket 8 is installed on the inner side of the limiting groove 5. When fixed, the elastic bracket 8 is supported between the second nuts 7, and the elasticity of the elastic bracket 8 and the elastic plate 13 can compensate for the loss of preload caused by vibration.

[0021] Further reading is available. Figures 1 to 4 The threads of the first threaded post 3 and the second threaded post 4 have opposite directions, and the inner diameter of the thread of the first threaded post 3 is the same as the outer diameter of the second threaded post 4. This makes it easier to install the first nut 6 on the first threaded post 3 and the second nut 7 on the second threaded post 4 during use. An elastic plate 13 is provided on one side of the elastic rib 8, and a limiting groove 9 is provided on one side of the first nut 6. One end of the elastic plate 13 is inserted into the limiting groove 9. During use, the limiting groove 9 makes the installation of the elastic rib 8 on the first nut 6 more stable. A positioning groove is provided on one side of the second nut 7. The positioning groove engages with the elastic rib 8, ensuring a more stable connection between the elastic rib 8 and the second nut 7 during use.

[0022] As can be seen from the above description, this utility model has the following beneficial effects: when in use, the first nut 6 and the second nut 7 are screwed together by the first threaded post 3 and the second threaded post 4, and the elastic rib 8 is engaged by the limiting groove 5. When fixed, the elastic rib 8 is supported between the second nuts 7. The elasticity of the elastic rib 8 and the elastic plate 13 can compensate for the loss of preload caused by vibration, thereby ensuring more stable fixation.

[0023] Example 2: Please refer to Figures 1 to 4 As shown, based on Embodiment 1, this utility model provides a technical solution: a dovetail groove 11 is opened on the outer surface of the transition light column 10, and the depth of the dovetail groove 11 is trapezoidally gradual, which can effectively enhance the bending resistance of the transition light column 10 during use; a fastening elastic frame 2 is provided on the outer side of the transition light column 10, and a positioning groove 12 is provided on one side of the hexagonal screw head 1. One end of the fastening elastic frame 2 is engaged in the positioning groove 12. During use, the support capacity is enhanced by the fastening elastic frame 2, thereby ensuring a better elastic fastening effect.

[0024] By adopting the above technical solution, the transition light column 10 forms an axial rib through the dovetail groove 11 during use, thereby reducing the deformation and bending of the transition light column 10. The fastening elastic frame 2 and the positioning groove 12 engage to provide more stable support, and the elasticity of the fastening elastic frame 2 ensures a stronger fastening force, thereby ensuring more stable bolt fixing.

[0025] The working principle and usage process of this utility model are as follows: In use, the first threaded post 3 and the second threaded post 4 are inserted into the fixing hole. The first nut 6 is screwed onto the first threaded post 3 to fix it, and the elastic frame 2 is supported in the fixing hole to ensure tightness. Then, the elastic plate 13 on the elastic rib 8 is engaged with the limiting groove 9. The second nut 7 is screwed onto the second threaded post 4 and pressed tightly onto the elastic rib 8 for reinforcement. The elastic rib 8 and the second nut 7 support and reinforce the first nut 6, thereby reducing the phenomenon of loosening. The tightening elastic frame 2 strengthens the support of the hexagonal screw head 1 in the fixed position. The dovetail groove 11 forms a variable diameter rib on the transition light column 10, thereby reducing the phenomenon of deformation under stress.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A double-threaded staggered anti-loosening bolt assembly, characterized in that: It includes a hexagonal screw head (1), one end of which is provided with a transition light post (10), one end of which is provided with a first threaded post (3), one end of which is provided with a second threaded post (4), and a limiting groove (5) is provided at the connection between the first threaded post (3) and the second threaded post (4). A first nut (6) is screwed on the outside of the first threaded post (3), and a second nut (7) is screwed on the outside of the second threaded post (4). An elastic rib (8) is installed on the inside of the limiting groove (5).

2. The double-threaded staggered anti-loosening bolt assembly according to claim 1, characterized in that: The first threaded post (3) and the second threaded post (4) have opposite thread directions, and the inner diameter of the first threaded post (3) is the same as the outer diameter of the second threaded post (4).

3. The double-threaded staggered anti-loosening bolt assembly according to claim 1, characterized in that: An elastic sheet (13) is provided on one side of the elastic rib frame (8), and a limiting groove (9) is provided on one side of the first nut (6). One end of the elastic sheet (13) is inserted into the limiting groove (9).

4. The double-threaded staggered anti-loosening bolt assembly according to claim 1, characterized in that: The second nut (7) has a positioning groove on one side, which engages with the elastic rib (8).

5. The double-threaded staggered anti-loosening bolt assembly according to claim 1, characterized in that: The outer surface of the transition light column (10) is provided with a dovetail groove (11), and the depth of the dovetail groove (11) is gradually changed in a trapezoidal shape.

6. The double-threaded staggered anti-loosening bolt assembly according to claim 1, characterized in that: The outer side of the transition light column (10) is provided with a fastening elastic frame (2), and one side of the hexagonal screw head (1) is provided with a positioning groove (12). One end of the fastening elastic frame (2) is engaged in the positioning groove (12).

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