Self-fastening bolt structure

Abstract

The utility model discloses a self-fastening bolt structure, and relates to the technical field of bolts. The fastening bolt comprises a fastening bolt body, one end of the fastening bolt body is in threaded connection with a fastening nut, one end of the fastening nut is provided with an L-shaped rod, one end of the L-shaped rod is provided with a plurality of groups of connecting insertion holes which are distributed at equal intervals, one end of the fastening bolt body is provided with a square groove, and the inner side of the square groove is fixedly provided with connecting seats which are symmetrically distributed. When one end of the L-shaped rod surrounds the outer side of the fastening bolt body and is aligned with the square groove, the connecting column is pushed out of the square groove under the action of the first spring on the connecting seat; the connecting columns extend out and then penetrate through the corresponding connecting insertion holes so as to fasten connection between the fastening nuts and the fastening bolt body, the situation that the fastening nuts are loosened under the conditions of vibration, friction, mistaken touch and the like is prevented, then the fastening effect of the structure is enhanced, and connection between the fastening nuts and the fastening bolt body is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a self-tightening bolt structure. Background Art

[0002] Bolt connection is a common threaded connection method, which is realized by the tooth profile engagement of the screw rod and the threaded hole.

[0003] However, since the bolt and nut are firmly connected together, it cannot be guaranteed that external factors will cause loosening, such as vibration, friction, misalignment, etc. between the bolt and nut. These situations will cause loosening of the connection and make it not tight enough, which needs to be improved and optimized. In view of the above problems, the inventor proposes a self-tightening bolt structure to solve the above problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a self-tightening bolt structure, including a fastening bolt body, one end of the fastening bolt body is threadedly connected with a fastening nut, one end of the fastening nut is provided with an L-shaped rod, one end of the L-shaped rod is provided with a plurality of equally spaced connection jacks, one end of the fastening bolt body is provided with a square groove, symmetrically distributed connection seats are fixedly installed inside the square groove, one ends of the two connection seats are fixedly connected with corresponding first springs, and one ends of the two first springs far away from the connection seats are fixedly connected with connection columns, and one ends of the two connection columns far away from the first springs slide through the corresponding connection jacks.

[0005] Preferably, symmetrically distributed fixing blocks are fixedly installed at the bottom end of the fastening bolt body, circular grooves are opened at one ends of the two fixing blocks, second springs are fixedly installed inside the two circular grooves, abutting columns are slidably installed inside the two circular grooves, and one ends of the two second springs are fixedly connected with the corresponding abutting columns.

[0006] Preferably, a connection groove corresponding to the fixing block is opened inside the fastening nut.

[0007] Preferably, symmetrically distributed magnetic attraction blocks are fixedly installed at the bottom surface of one end of the fastening bolt body.

[0008] Preferably, a hexagonal groove is opened at the middle position of the top end of the fastening bolt body.

[0009] Preferably, symmetrically distributed fixing rings are fixedly installed at the top end of the fastening bolt body.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The tightening nut drives the L-shaped rod to rotate and rise. When one end of the L-shaped rod surrounds the outer side of the tightening bolt body and aligns with the square groove, the connecting column is pushed out of the square groove by the action of the first spring on the connecting seat. After the connecting column extends out, it passes through the corresponding connecting jack to tighten the connection between the tightening nut and the tightening bolt body, preventing the tightening nut from loosening under vibrations, friction, accidental touches, etc., thereby enhancing the tightening effect of this structure and making the connection between the tightening nut and the tightening bolt body more stable.

[0012] 2. The fixing block is provided to accommodate the abutting column. Relying on the characteristics of the second spring in the circular groove, the abutting column is pushed to move outwards, thus facilitating the pre-installed state where the tightening nut is sleeved on the tightening bolt body and using the abutting column to hold the tightening nut, effectively limiting the tightening nut, and also facilitating the adaptation of the tightening nut and the tightening bolt body when this structure leaves the factory, preventing the tightening nut from falling off the tightening bolt body.

[0013] 3. By opening multiple connecting jacks, it is convenient to carry out tightening and matching under different distances between the connection of the tightening nut and the tightening bolt body, facilitating the connection between the connecting column and the connecting jack, and increasing the adjustability of tightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the disassembled structure of the present invention.

[0017] Figure 3 It is a schematic sectional view of the structure of the present invention.

[0018] In the figure: 1. Tightening bolt body; 11. Tightening nut; 12. L-shaped rod; 13. Connecting jack; 14. Square groove; 15. Connecting seat; 16. First spring; 17. Connecting column; 18. Fixing block; 19. Circular groove; 20. Second spring; 21. Abutting column; 22. Connecting groove; 23. Magnetic attraction block; 24. Hexagonal groove; 25. Fixed ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: As Figures 1-3 shown, the present utility model provides a technical solution: a self-tightening bolt structure, including a fastening bolt body 1, one end of the fastening bolt body 1 is threadedly connected with a fastening nut 11, one end of the fastening nut 11 is provided with an L-shaped rod 12, and one end of the L-shaped rod 12 is provided with a plurality of equally spaced connection jacks 13. One end of the fastening bolt body 1 is provided with a square groove 14, and symmetrically distributed connection seats 15 are fixedly installed inside the square groove 14. One end of the two connection seats 15 is fixedly connected with corresponding first springs 16. One end of the two first springs 16 away from the connection seats 15 is fixedly connected with connection columns 17, and one end of the two connection columns 17 away from the first springs 16 slides through the corresponding connection jacks 13.

[0021] By adopting the above technical solution, by providing a plurality of connection jacks 13, it is convenient to perform fastening and matching under different spacing conditions between the connection of the fastening nut 11 and the fastening bolt body 1, which is convenient for the connection between the connection column 17 and the connection jack 13, and increases the adjustability of fastening.

[0022] Symmetrically distributed fixing blocks 18 are fixedly installed at the bottom end of the fastening bolt body 1. Circular grooves 19 are provided at one end of the two fixing blocks 18. Second springs 20 are fixedly installed inside the two circular grooves 19. Abutting columns 21 are slidably installed inside the two circular grooves 19. One end of the two second springs 20 is fixedly connected with the corresponding abutting columns 21.

[0023] By adopting the above technical solution, the fixing blocks 18 are provided to accommodate the abutting columns 21, and the self-characteristics of the second springs 20 in the circular grooves 19 are relied on to push the abutting columns 21 to move outwards. Thus, it is convenient to use the abutting columns 21 to abut against the fastening nut 11 in the pre-installed state when the fastening nut 11 is sleeved on the fastening bolt body 1, effectively limiting the fastening nut 11, and it is also convenient to adapt the fastening nut 11 and the fastening bolt body 1 in the case of the factory production of this structure to prevent the fastening nut 11 from falling off the fastening bolt body 1.

[0024] A connection groove 22 corresponding to the fixing block 18 is provided inside the fastening nut 11.

[0025] By adopting the above technical solution, by providing the connection groove 22, it is convenient for the fastening nut 11 to pass through the fixing block 18 when connecting with the fastening bolt body 1.

[0026] One end of the bottom surface of the fastening bolt body 1 is fixedly installed with symmetrically distributed magnetic attraction blocks 23.

[0027] By adopting the above technical solution, when the fastening nut 11 is adjusted to fit the upper part of the fastening bolt body 1, the magnetic attraction blocks 23 are arranged to magnetically connect the fastening nut 11, increasing the connection force and improving the fastening effect.

[0028] A hexagonal groove 24 is formed in the middle position at the top end of the fastening bolt body 1.

[0029] By adopting the above technical solution, by arranging the hexagonal groove 24, it is convenient to use a hexagonal wrench to rotate it, and then disassemble and separate the fastening bolt body 1 and the fastening nut 11, which is more labor-saving than manual screwing.

[0030] Symmetrically distributed fixing rings 25 are fixedly installed at the top end of the fastening bolt body 1.

[0031] By adopting the above technical solution, by arranging the fixing rings 25, it is convenient to use a rod to pass through the two fixing rings 25 in the absence of a hexagonal wrench, so as to conveniently rotate the fastening bolt body 1, and then disassemble and separate the fastening bolt body 1 and the fastening nut 11.

[0032] Working principle: First, the fastening nut 11 is sleeved on the fastening bolt body 1. Relying on the characteristics of the second spring 20 in the circular groove 19, the abutting column 21 is pushed to move outwards, so that it is convenient to use the abutting column 21 to abut the fastening nut 11 in the pre-installed state when the fastening nut 11 is sleeved on the fastening bolt body 1, effectively limiting the fastening nut 11, and also facilitating the matching of the fastening nut 11 and the fastening bolt body 1 when the structure leaves the factory, preventing the fastening nut 11 from falling off the fastening bolt body 1. Subsequently, when it is necessary to fasten the fastening nut 11 and the fastening bolt body 1, the fastening nut 11 can be rotated on the fastening bolt body 1 by relying on the thread for fastening. The fastening nut 11 drives the L-shaped rod 12 to rotate and rise. When one end of the L-shaped rod 12 surrounds the outside of the fastening bolt body 1 and aligns with the square groove 14, the connecting column 17 is pushed out of the square groove 14 by the action of the first spring 16 on the connecting seat 15. After the connecting column 17 extends out, it passes through the corresponding connecting jack 13, thereby fastening the connection between the fastening nut 11 and the fastening bolt body 1, preventing the fastening nut 11 from loosening under the conditions of vibration, friction, accidental touch, etc., and further enhancing the fastening effect of the structure, making the connection between the fastening nut 11 and the fastening bolt body 1 more stable.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A self-tightening bolt structure, comprising a fastening bolt body (1), characterized in that: One end of the fastening bolt body (1) is threadedly connected to a fastening nut (11), one end of the fastening nut (11) is installed with an L-shaped rod (12), one end of the L-shaped rod (12) is provided with a plurality of groups of connection sockets (13) distributed at equal intervals, one end of the fastening bolt body (1) is provided with a square groove (14), the inner side of the square groove (14) is fixedly installed with symmetrically distributed connection seats (15), one end of the two groups of connection seats (15) is fixedly connected to corresponding first springs (16), the ends of the two groups of first springs (16) away from the connection seats (15) are fixedly connected to connection columns (17), and the ends of the two groups of connection columns (17) away from the first springs (16) slide through the corresponding connection sockets (13).

2. A self-tightening bolt structure according to claim 1, characterized in that: The bottom end of the fastening bolt body (1) is fixedly mounted with symmetrically distributed fixing blocks (18), one end of the two groups of the fixing blocks (18) is provided with a circular groove (19), the inner sides of the two groups of the circular grooves (19) are fixedly mounted with a second spring (20), the inner sides of the two groups of the circular grooves (19) are slidably mounted with a support column (21), and one end of the two groups of the second springs (20) is fixedly connected to the corresponding support column (21).

3. A self-tightening bolt structure according to claim 1, characterized in that: A connecting groove (22) corresponding to the fixing block (18) is formed on the inner side of the fastening nut (11).

4. A self-tightening bolt structure as claimed in claim 2, characterized in that: A symmetrically distributed magnetic attraction block (23) is fixedly mounted on the bottom surface of one end of the fastening bolt body (1).

5. A self-tightening bolt structure as claimed in claim 4, characterized in that: A hexagonal groove (24) is provided at the middle position of the top end of the fastening bolt body (1).

6. A self-tightening bolt structure as claimed in claim 5, characterized in that: A symmetrically distributed fixing ring (25) is fixedly mounted on the top end of the fastening bolt body (1).

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