Fastening type anti-loosening and anti-falling nut

Abstract

The utility model discloses a fastening type anti-loosening and anti-falling nut which comprises a nut body, an anti-falling sleeve communicated with the nut body is arranged at the top end of the nut body, a pressing sleeve is arranged on the outer wall of the anti-falling sleeve in a sleeved mode, a plurality of evenly-distributed guide grooves are formed in the inner wall of the pressing sleeve, and guide columns matched with the guide grooves are arranged on the outer wall of the anti-falling sleeve. The guide column is connected with the pressing sleeve through a limiting assembly, a plurality of evenly-distributed adjusting holes are formed in the position, located on the outer wall of the anti-disengaging sleeve, of the bottom end of the pressing sleeve, and elastic pieces which are obliquely arranged and extend out of the anti-disengaging sleeve are arranged in the adjusting holes. The anti-loosening nut has the beneficial effects that by arranging the anti-loosening sleeve, the pressing sleeve, the elastic piece and the fastening needle, after the nut and a bolt are screwed, the nut can be further limited, looseness caused by rotation of the nut is prevented, safety is improved, the pressing sleeve can be limited and fixed by arranging the limiting assembly, and the situation that limiting and fixing of the nut are affected due to the sliding phenomenon of the pressing sleeve is prevented; and the safety is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a fastening type anti-loosening and anti-dropping nut. Background Art

[0002] A nut is a cap that is screwed together with a bolt or screw for fastening. It is a component that must be used in all manufacturing machinery. It is divided into several major types according to the material, such as carbon steel, stainless steel, and non-ferrous metals (such as copper). Nuts are parts that tightly connect mechanical equipment. Nuts and screws of the same specifications can be connected together through the inner thread.

[0003] During the long-term connection process, the nut may become loose and fall off due to external vibration factors, which reduces the safety.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a tightening type anti-loosening and anti-dropping nut to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A tightening anti-loosening and anti-dropping nut comprises a nut, the top of the nut is provided with an anti-dropping sleeve connected with the nut, the outer wall of the anti-dropping sleeve is provided with a pressing sleeve, the inner wall of the pressing sleeve is provided with a plurality of evenly distributed guide grooves, the outer wall of the anti-dropping sleeve is provided with a guide column matching the guide grooves, the guide column is connected to the pressing sleeve through a limiting component, the bottom end of the pressing sleeve and located on the outer wall of the anti-dropping sleeve are provided with a plurality of evenly distributed adjustment holes, the adjustment hole is provided with an elastic sheet which is inclined and extends to the outside of the anti-dropping sleeve, and a fastening pin is provided on one side of the elastic sheet.

[0008] Preferably, the anti-dropout sleeve is fixedly connected to the nut, and a threaded groove is provided on the inner wall of the anti-dropout sleeve.

[0009] Preferably, an annular pressure pad is provided at the bottom end of the nut, and an annular anti-slip rubber pad is provided at the bottom end of the annular pressure pad.

[0010] Preferably, the outer wall of the pressing sleeve is provided with anti-slip grooves.

[0011] Preferably, the limiting assembly includes a slide groove provided on one side of the guide column, a slider matching the slide groove is provided in the slide groove, a spring is provided on one side of the slider, a limiting ball extending out of the slide groove is provided on the side of the slider away from the spring, and a limiting groove matching the limiting ball is provided on the pressing sleeve.

[0012] Preferably, the slider is connected to the guide column via the spring.

[0013] Preferably, the limiting ball is rollingly connected to the sliding block.

[0014] The beneficial effects of the utility model are as follows: by arranging the anti-drop sleeve, the pressing sleeve, the elastic sheet and the fastening needle, the nut can be further limited after the nut and the bolt are tightened, thereby preventing the nut from self-rotating and loosening to improve safety; by arranging the limiting component, the pressing sleeve can be limited and fixed to prevent the pressing sleeve from sliding and thus affecting the limiting and fixing of the nut, thereby further improving its safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of a fastening type anti-loosening and anti-dropping nut according to an embodiment of the utility model;

[0017] Figure 2 This is a front view of a fastening type anti-loosening and anti-falling nut according to an embodiment of the utility model;

[0018] Figure 3 It is a cross-sectional view of a fastening type anti-loosening and anti-dropping nut according to an embodiment of the utility model;

[0019] Figure 4 yes Figure 3 A local enlarged schematic diagram of point A in the middle.

[0020] In the figure:

[0021] 1. Nut; 2. Anti-slip sleeve; 3. Pressing sleeve; 4. Guide groove; 5. Guide column; 6. Adjustment hole; 7. Elastic sheet; 8. Fastening needle; 9. Annular pressure pad; 10. Slide groove; 11. Sliding block; 12. Spring; 13. Limiting ball; 14. Limiting groove; 15. Annular anti-slip rubber pad. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the utility model, a fastening type anti-loosening and anti-dropping nut is provided.

[0024] Embodiment 1;

[0025] like Figure 1-4 As shown, according to the embodiment of the utility model, the tightening anti-loosening and anti-dropping nut includes a nut 1, the top of the nut 1 is provided with an anti-dropping sleeve 2 connected thereto, the outer wall of the anti-dropping sleeve 2 is provided with a pressing sleeve 3, the inner wall of the pressing sleeve 3 is provided with a plurality of evenly distributed guide grooves 4, the outer wall of the anti-dropping sleeve 2 is provided with a guide column 5 matching the guide groove 4, the guide column 5 is connected to the pressing sleeve 3 through a limiting assembly, the bottom end of the pressing sleeve 3 and located on the outer wall of the anti-dropping sleeve 2 are provided with a plurality of evenly distributed adjustment holes 6, the adjustment hole 6 is provided with an elastic sheet 7 which is inclined and extends to the outside of the anti-dropping sleeve 2, and a fastening needle 8 is provided on one side of the elastic sheet 7.

[0026] Embodiment 2:

[0027] like Figure 1-4As shown, it includes a nut 1, the top of the nut 1 is provided with an anti-dropout sleeve 2 connected thereto, the outer wall of the anti-dropout sleeve 2 is provided with a press sleeve 3, the inner wall of the press sleeve 3 is provided with a number of evenly distributed guide grooves 4, the outer wall of the anti-dropout sleeve 2 is provided with a guide column 5 matching the guide groove 4, the guide column 5 is connected to the press sleeve 3 through a limit assembly, the bottom of the press sleeve 3 and located on the outer wall of the anti-dropout sleeve 2 are provided with a number of evenly distributed adjustment holes 6, the adjustment hole 6 is provided with an elastic sheet 7 which is inclined and extends to the outside of the anti-dropout sleeve 2, and a fastening pin 8 is provided on one side of the elastic sheet 7. The anti-dropout sleeve 2 is fixedly connected to the nut 1, and a threaded groove is provided on the inner wall of the anti-dropout sleeve 2. An annular pressure pad 9 is provided at the bottom end of the nut 1, and an annular anti-slip rubber pad 15 is provided at the bottom end of the annular pressure pad 9. The outer wall of the press sleeve 3 is provided with anti-slip patterns. The limiting assembly includes a slide groove 10 provided on one side of the guide column 5, a slider 11 matching the slide groove 10 is provided in the slide groove 10, a spring 12 is provided on one side of the slider 11, a limiting ball 13 extending out of the slide groove 10 is provided on the side of the slider 11 away from the spring 12, and a limiting groove 14 matching the limiting ball 13 is provided on the pressing sleeve 3. The slider 11 is connected to the guide column 5 through the spring 12. The limiting ball 13 is in rolling connection with the slider 11.

[0028] When the nut 1 is tightened and fixed with the external bolt, the personnel presses the pressing sleeve 3 to move downward. When the pressing sleeve 3 moves downward, it will squeeze the elastic sheet 7. The elastic sheet 7 is squeezed and rotates toward the anti-dropping sleeve 2. At this time, the elastic sheet 7 drives the fastening needle 8 to squeeze the external bolt to prevent the nut 1 from falling off. In this process, when the pressing sleeve 3 moves downward and contacts the nut 1, the limiting ball 13 is squeezed by the spring 12 and stuck into the limiting groove 14 on the pressing sleeve 3, thereby limiting the pressing sleeve 3 to prevent the pressing sleeve 3 from sliding and causing the elastic sheet 7 to reset. By arranging the anti-dropping sleeve, the pressing sleeve, the elastic sheet and the fastening needle, the nut can be further limited after the nut and the bolt are tightened to prevent the nut from loosening due to self-rotation and improve safety. By arranging the limiting component, the pressing sleeve can be limited and fixed to prevent the pressing sleeve from sliding and thus affecting the limiting and fixing of the nut, thereby further improving its safety.

[0029] To summarize, with the aid of the above-mentioned technical scheme of the utility model, by arranging the anti-drop sleeve, the pressing sleeve, the elastic sheet and the fastening needle, the nut can be further limited after the nut and the bolt are tightened to prevent the nut from loosening due to self-rotation and improve safety. By arranging the limiting component, the pressing sleeve can be limited and fixed to prevent the pressing sleeve from sliding and thus affecting the limiting and fixing of the nut, thereby further improving its safety.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fastening type anti-loosening and anti-dropping nut, characterized in that: The invention comprises a nut (1), wherein the top end of the nut (1) is provided with an anti-dropout sleeve (2) connected thereto, the outer wall of the anti-dropout sleeve (2) is provided with a pressing sleeve (3), the inner wall of the pressing sleeve (3) is provided with a plurality of evenly distributed guide grooves (4), the outer wall of the anti-dropout sleeve (2) is provided with a guide column (5) matching the guide grooves (4), the guide column (5) is connected to the pressing sleeve (3) through a limiting component, the bottom end of the pressing sleeve (3) and located on the outer wall of the anti-dropout sleeve (2) are provided with a plurality of evenly distributed adjustment holes (6), the adjustment hole (6) is provided with an elastic sheet (7) which is arranged obliquely and extends to the outside of the anti-dropout sleeve (2), and a fastening pin (8) is provided on one side of the elastic sheet (7).

2. A fastening type anti-loosening and anti-dropping nut according to claim 1, characterized in that: The anti-dropout sleeve (2) is fixedly connected to the nut (1), and a thread groove is provided on the inner wall of the anti-dropout sleeve (2).

3. A fastening type anti-loosening and anti-dropping nut according to claim 1, characterized in that: An annular pressure pad (9) is provided at the bottom end of the nut (1), and an annular anti-slip rubber pad (15) is provided at the bottom end of the annular pressure pad (9).

4. A fastening type anti-loosening and anti-dropping nut according to claim 1, characterized in that: The outer wall of the pressing sleeve (3) is provided with anti-slip grooves.

5. A fastening type anti-loosening and anti-dropping nut according to claim 1, characterized in that: The limiting assembly comprises a slide groove (10) provided on one side of the guide column (5), a slider (11) matching the slide groove (10) being provided in the slide groove (10), a spring (12) being provided on one side of the slider (11), a limiting ball (13) extending out of the slide groove (10) being provided on the side of the slider (11) away from the spring (12), and a limiting groove (14) matching the limiting ball (13) being provided on the pressing sleeve (3).

6. A fastening type anti-loosening and anti-dropping nut according to claim 5, characterized in that: The sliding block (11) is connected to the guide column (5) via the spring (12).

7. A fastening type anti-loosening and anti-dropping nut according to claim 5, characterized in that: The limiting ball (13) is rollingly connected to the sliding block (11).

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