Stainless steel bolt good in stability and not prone to falling off

Abstract

The utility model discloses a stainless steel bolt good in stability and not prone to falling off, which comprises a bolt body, a nut is in threaded connection with the inside of the bolt body, a bolt head is fixedly connected with the top of the bolt body, an anti-skid gasket is arranged between the bolt head and the nut, an elastic gasket is movably connected with the upper surface of the nut, and the elastic gasket is fixedly connected with the bolt head. The elastic washer comprises a lower bottom plate, a shell and an upper top cover, the shell is fixedly connected to the upper surface of the lower bottom plate, a mounting groove is formed in the shell, a movable frame is arranged in the mounting groove, the lower surface of the movable frame is fixedly connected with the inner bottom face of the shell through a spring, and a limiting frame is fixedly connected to the inner side of the shell; and the upper surface of the moving frame is fixedly connected with a connecting frame. By means of the device, through cooperation of the lower bottom plate, the shell, the upper top cover, the movable frame, the spring, the limiting frame and the connecting frame, energy absorption is achieved, and the anti-loosening capacity and stability of the stainless steel bolt are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a stainless steel bolt with good stability and not easy to fall off. Background Art

[0002] In the existing fastener technology, it is mostly fixed on the bolt directly through a nut. However, in this way, it is easy to loosen or even fall off due to vibration. For example, the Chinese patent discloses "a stainless steel bolt with good stability and not easy to fall off", and its application number is "CN202121760193.2". By opening a groove, it is more convenient for the extrusion head to extrude the elastic metal sheet to deform it, so as to facilitate the transfer of pressure to the inner cavity of the stud, causing the stud to have a slight mechanical deformation and improving the fastening and extrusion effect between the stud and the nut. However, it causes deformation on the surface of the bolt, and after long-term use, the bolt cannot be restored, resulting in damage. Summary of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a stainless steel bolt with good stability and not easy to fall off. Through the cooperation of a spring, a moving frame and a connecting frame, after the nut is tightened, the elastic washer generates a pre-tightening force to absorb vibration and impact, further preventing the nut from loosening. Due to the elastic force of the spring, the force applied by the connecting piece to the bottom nut is continuously weakened, achieving the effect of not being easy to fall off. Through the limit frame, the movement of the moving frame is restricted to prevent deformation of the spring. Through the cooperation of the anti-slip washer and the elastic washer, multiple anti-loosening protections are provided, improving the stability and durability of the bolt, and solving the problem of easy loosening of traditional bolts.

[0004] The utility model also provides a stainless steel bolt with the above-mentioned good stability and not easy to fall off, including: a bolt body, a nut is threadedly connected inside the bolt body, a bolt head is fixedly connected to the top of the bolt body, an anti-slip washer is arranged between the bolt head and the nut, and an elastic washer is movably connected to the upper surface of the nut; the elastic washer includes a lower bottom plate, a housing and an upper top cover, the housing is fixedly connected to the upper surface of the lower bottom plate, an installation groove is arranged inside the housing, a moving frame is arranged inside the installation groove, the lower surface of the moving frame is fixedly connected to the inner bottom surface of the housing through a spring, a limit frame is fixedly connected to the inner side of the housing, and a connecting frame is fixedly connected to the upper surface of the moving frame. Through the above devices, through the cooperation of the lower bottom plate, the housing, the upper top cover, the moving frame, the spring, the limit frame and the connecting frame, energy absorption is realized, effectively improving the anti-loosening ability and stability of the stainless steel bolt.

[0005] According to the stainless steel bolt with good stability and not easy to fall off described in the utility model, screw threads are arranged on the bolt body, and the screw threads are threadedly connected with the nut. Through the above devices, through the screw threads and the nut, it is convenient to connect the nut.

[0006] A stainless steel bolt with good stability and not easy to fall off according to the present utility model. The anti-slip washer is located at the top of the bolt body, and the lower surface of the anti-slip washer fits with the upper surface of the connecting piece. Through the above device, the stability of the bolt is improved through the anti-slip washer.

[0007] A stainless steel bolt with good stability and not easy to fall off according to the present utility model. The elastic washer is located below the anti-slip washer, and the upper surface of the elastic washer fits with the lower surface of the connecting piece. Through the above device, energy is absorbed when vibrating through the elastic washer.

[0008] A stainless steel bolt with good stability and not easy to fall off according to the present utility model. The lower bottom plate is in a circular ring shape, and the outer shell is located at both ends of the circular ring of the lower bottom plate. Through the above device, disassembly is facilitated through the shape of the lower bottom plate.

[0009] A stainless steel bolt with good stability and not easy to fall off according to the present utility model. The moving frame is in a circular ring shape, and the moving frame has an interference fit with the inner wall of the outer shell. Through the above device, movement inside is facilitated through the shape of the moving frame.

[0010] A stainless steel bolt with good stability and not easy to fall off according to the present utility model. A groove for interference fit with the connecting frame is provided on the outer shell. One end of the connecting frame is located inside the outer shell, and the other end of the connecting frame is located outside the outer shell. Through the above device, movement of the connecting frame is facilitated through the groove.

[0011] A stainless steel bolt with good stability and not easy to fall off according to the present utility model. The upper top cover is fixedly connected to the upper surface of the connecting frame, and the upper top cover has the same diameter as the lower bottom plate. Through the above device, fitting with the connecting piece is facilitated through the upper top cover and the lower bottom plate, and the contact area is increased.

[0012] Beneficial effects

[0013] Compared with the prior art, for the stainless steel bolt with good stability and not easy to fall off, through the cooperation of the spring, the moving frame and the connecting frame, after the nut is tightened, the elastic washer generates a pre-tightening force, absorbs vibration and impact, and further prevents the nut from loosening. Due to the elastic force of the spring, the force applied by the connecting piece to the bottom nut is continuously weakened, achieving the effect of not being easy to fall off. Through the limiting frame, the movement of the moving frame is restricted, preventing deformation of the spring. Through the cooperation of the anti-slip washer and the elastic washer, multiple anti-loosening protections are provided, improving the stability and durability of the bolt, and solving the problem of easy loosening of traditional bolts. Description of the drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 The front view of the stainless steel bolt with good stability and not easy to fall off of the present utility model;

[0016] Figure 2 The Figure 1 vertical sectional view of the stainless steel bolt with good stability and not easy to fall off of the present utility model;

[0017] Figure 3 In the stainless steel bolt with good stability and not easy to fall off of the present utility model Figure 2 The enlarged view at position A;

[0018] Figure 4 In the stainless steel bolt with good stability and not easy to fall off of the present utility model Figure 2 The enlarged view at position B.

[0019] Legend description:

[0020] 1. Bolt head; 2. Bolt body; 3. Thread; 4. Elastic washer; 5. Lower bottom plate; 6. Outer shell; 7. Installation groove; 8. Spring; 9. Limit frame; 10. Moving frame; 11. Connecting frame; 12. Upper top cover; 13. Anti-slip washer; 14. Nut. Specific implementation manners

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation to the protection scope of the present utility model.

[0022] Refer to Figures 1-4 , in an embodiment of the present utility model, there is a stainless steel bolt with good stability and not easy to fall off, which includes: a bolt body 2, a nut 14 is threadedly connected inside the bolt body 2, a thread 3 is arranged on the bolt body 2, the thread 3 is convenient for connecting with the nut 14, the thread 3 is threadedly connected with the nut 14, the top of the bolt body 2 is fixedly connected with a bolt head 1, an anti-slip washer 13 is arranged between the bolt head 1 and the nut 14, the anti-slip washer 13 improves the stability of the bolt, the anti-slip washer 13 is located at the top of the bolt body 2, the lower surface of the anti-slip washer 13 fits with the upper surface of the connecting piece, an elastic washer 4 is movably connected to the upper surface of the nut 14, the elastic washer 4 absorbs energy when vibrating, the elastic washer 4 is located below the anti-slip washer 13, and the upper surface of the elastic washer 4 fits with the lower surface of the connecting piece.

[0023] The elastic washer 4 includes a lower bottom plate 5, an outer shell 6 and an upper top cover 12. The lower bottom plate 5 is circular in shape. The outer shell 6 is located at both ends of the circular ring of the lower bottom plate 5. The outer shell 6 is fixedly connected to the upper surface of the lower bottom plate 5. An installation groove 7 is provided inside the outer shell 6. A moving frame 10 is provided inside the installation groove 7. The moving frame 10 drives the connecting frame 11 to move. The moving frame 10 is circular. The moving frame 10 is in interference fit with the inner wall of the outer shell 6. The lower surface of the moving frame 10 is fixedly connected to the inner bottom surface of the outer shell 6 by a spring 8. The spring 8 absorbs energy. A limiting frame 9 is fixedly connected to the inner side of the outer shell 6. The limiting frame 9 protects the spring 8. The upper surface of the moving frame 10 is fixedly connected to a connecting frame 11. A groove in interference fit with the connecting frame 11 is provided on the outer shell 6. One end of the connecting frame 11 is located inside the outer shell 6, and the other end of the connecting frame 11 is located outside the outer shell 6. The upper top cover 12 is fixedly connected to the upper surface of the connecting frame 11. The upper top cover 12 has the same diameter as the lower bottom plate 5.

[0024] Working principle: When in use, place the anti-slip washer 13 on the top of the bolt body 2, then install the connecting piece, place the elastic washer 4 below the connecting piece, and tighten the nut 14. The elastic washer 4 generates a pre-tightening force. The connecting piece continuously vibrates the upper top cover 12. Through the connecting frame 11, the force is transmitted to the spring 8 to absorb vibration and impact.

[0025] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A stainless steel bolt with good stability and not easy to fall off, characterized in that: include: A bolt body (2), wherein a nut (14) is connected to the inner thread of the bolt body (2), a bolt head (1) is fixedly connected to the top of the bolt body (2), an anti-slip washer (13) is arranged between the bolt head (1) and the nut (14), and an elastic washer (4) is movably connected to the upper surface of the nut (14); The elastic gasket (4) comprises a lower base plate (5), an outer shell (6) and an upper cover (12); the outer shell (6) is fixedly connected to the upper surface of the lower base plate (5); a mounting groove (7) is provided inside the outer shell (6); a movable frame (10) is provided inside the mounting groove (7); the lower surface of the movable frame (10) is fixedly connected to the inner bottom surface of the outer shell (6) via a spring (8); the inner side of the outer shell (6) is fixedly connected to a limiting frame (9); and the upper surface of the movable frame (10) is fixedly connected to a connecting frame (11).

2. A stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The bolt body (2) is provided with a thread (3), and the thread (3) is threadedly connected to a nut (14).

3. A stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The anti-skid washer (13) is located on the top of the bolt body (2), and the lower surface of the anti-skid washer (13) is in contact with the upper surface of the connecting piece.

4. A stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The elastic gasket (4) is located below the anti-slip gasket (13), and the upper surface of the elastic gasket (4) is in contact with the lower surface of the connecting piece.

5. The stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The lower base plate (5) is in the shape of a ring, and the outer shell (6) is located at both ends of the ring shape of the lower base plate (5).

6. The stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The movable frame (10) is in the shape of a circular ring, and is interference-fitted with the inner wall of the outer shell (6).

7. The stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The outer shell (6) is provided with a groove which is interference-fitted with the connecting frame (11); one end of the connecting frame (11) is located inside the outer shell (6), and the other end of the connecting frame (11) is located outside the outer shell (6).

8. The stainless steel bolt with good stability and not easy to fall off according to claim 1, characterized in that: The upper cover (12) is fixedly connected to the upper surface of the connecting frame (11), and the upper cover (12) and the lower base plate (5) have the same diameter.

Images