Internally-connected double-end bolt

Abstract

The utility model discloses an internal connection type double-end bolt which comprises a main body, connecting rods are arranged at the two ends of the main body, threads are arranged on the outer surfaces of the connecting rods, reinforcing rods are arranged on the inner sides of the connecting rods, fixing plates are arranged between the connecting rods and the main body, connecting grooves are formed in the outer surfaces of the fixing plates, and the reinforcing rods are arranged in the connecting grooves. A disc spring is arranged on the inner side of the connecting groove, a rubber ring is arranged at one end of the disc spring, a movable plate is arranged on the outer side of the body, through holes are evenly formed in the outer surface of the body, a rubber pad is arranged on the inner surface of the movable plate, a fixing rod is arranged on the inner side of the rubber pad, and a cleaning brush is arranged on the outer surface of the rubber pad. Positioning blocks are arranged on the outer surfaces of the two ends of the movable plate, positioning grooves are formed in the positions, located at the positioning blocks, of the outer surfaces of the through holes, and sliding grooves are formed in the inner sides of the two ends of each positioning groove. According to the utility model, the firmness of bolt connection is increased, and the connection effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an internally-connected double-headed bolt. Background Technique

[0002] A double-headed bolt, also called a double-headed screw or a double-headed stud, is used for the fixed connection function of machinery. Both ends of the double-headed bolt have threads, and the middle screw rod can be thick or thin. It is generally used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, tower cranes, large-span steel structures and large buildings, etc.

[0003] However, the existing internally-connected double-headed bolts are prone to loosening during long-term connection, and the cleaning effect of the dust adhered to the outer surface of the bolt before connection is not good enough. Therefore, it does not meet the existing requirements, and for this reason, we propose an internally-connected double-headed bolt. Content of the Utility Model

[0004] The purpose of the utility model is to provide an internally-connected double-headed bolt to solve the problems that the existing internally-connected double-headed bolts are prone to loosening during long-term connection and the cleaning effect of the dust adhered to the outer surface of the bolt before connection is not good enough as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An internally-connected double-headed bolt, including a main body, both ends of the main body are provided with connecting rods, the outer surface of the connecting rod is provided with threads, the inner side of the connecting rod is provided with a reinforcing rod, a fixing plate is arranged between the connecting rod and the main body, the outer surface of the fixing plate is provided with a connecting groove, a disc spring is arranged inside the connecting groove, one end of the disc spring is provided with a rubber ring, a moving plate is arranged outside the main body, through holes are evenly arranged on the outer surface of the main body, a rubber pad is arranged on the inner surface of the moving plate, a fixing rod is arranged inside the rubber pad, a cleaning brush is arranged on the outer surface of the rubber pad, positioning blocks are arranged on the outer surfaces at both ends of the moving plate, positioning grooves are arranged on the outer surface of the through hole at the position of the positioning block, and sliding grooves are arranged inside both ends of the positioning groove.

[0006] Preferably, the outer surfaces of the connecting rod and the main body are completely attached, and the connecting rod and the main body are fixed by welding.

[0007] Preferably, the fixing plate is inserted into the inside of the main body and fixed to the outer surface of the main body by welding.

[0008] Preferably, the rubber ring is slidably connected to the connecting groove, and one end of the disc spring is fixed to the rubber ring by welding.

[0009] Preferably, the outer surface of the rubber pad is completely attached to the inner surface of the cleaning brush, and the rubber pad and the cleaning brush are fixed by bonding.

[0010] Preferably, one end of the positioning block is completely attached to the inner surface of the moving plate, and the positioning block and the moving plate are fixed by welding.

[0011] Preferably, positioning balls are arranged inside the positioning block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the fixing plate arranged between the connecting rod and the main body of the present utility model, by using the disc spring and the rubber ring arranged inside the fixing plate, and by using the rubber ring, the friction between the nut and the bolt can be reduced during nut connection, and by using the disc spring, the firmness of nut connection can be increased, the loosening of the nut can be reduced, and the reliability of bolt connection is improved;

[0014] 2. A moving plate is arranged on the outer side of the main body of the present utility model. Through the rubber pad, the cleaning brush arranged on the inner surface of the moving plate, and the sliding groove and the positioning groove arranged on the outer side of the main body, by using the positioning groove, the moving plate can be moved to one end of the main body, and then by using the sliding groove, the moving plate can be rotated back and forth, which is convenient for the cleaning brush on the inner surface of the moving plate to clean the thread on the outer surface of the connecting rod, reducing the influence of the adhered dust on the connection effect of the bolt and improving the connection effect of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 is a partial structural diagram of the present utility model;

[0017] Figure 3 is a partial structural diagram of the fixing plate of the present utility model.

[0018] In the figure: 1. Moving plate; 2. Main body; 3. Through hole; 4. Fixing plate; 5. Connecting rod; 6. Thread; 7. Reinforcing rod; 8. Rubber pad; 9. Fixed rod; 10. Cleaning brush; 11. Positioning groove; 12. Sliding groove; 13. Positioning block; 14. Disc spring; 15. Connection groove; 16. Rubber ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 of the embodiments.

[0020] Please refer to Figures 1 to 3, an embodiment provided by the present utility model: an internal connection type double-headed bolt, including a main body 2, connecting rods 5 are provided at both ends of the main body 2, threads 6 are provided on the outer surface of the connecting rods 5, reinforcing rods 7 are provided inside the connecting rods 5, a fixing plate 4 is provided between the connecting rods 5 and the main body 2, a connecting groove 15 is provided on the outer surface of the fixing plate 4, a disc spring 14 is provided inside the connecting groove 15, a rubber ring 16 is provided at one end of the disc spring 14, a moving plate 1 is provided on the outer side of the main body 2, through holes 3 are uniformly provided on the outer surface of the main body 2, a rubber pad 8 is provided on the inner surface of the moving plate 1, a fixing rod 9 is provided inside the rubber pad 8, a cleaning brush 10 is provided on the outer surface of the rubber pad 8, positioning blocks 13 are provided on the outer surfaces at both ends of the moving plate 1, positioning grooves 11 are provided on the outer surface of the through holes 3 at the positions of the positioning blocks 13, and sliding grooves 12 are provided inside both ends of the positioning grooves 11.

[0021] Furthermore, the outer surfaces of the connecting rod 5 and the main body 2 are completely attached, and the connecting rod 5 and the main body 2 are fixed by welding.

[0022] By adopting the above technical solution, the firmness of the connection of the connecting rod 5 is increased, and the working strength of the connecting rod 5 is improved.

[0023] Furthermore, the fixing plate 4 is inserted into the inside of the main body 2 and is fixed to the outer surface of the main body 2 by welding.

[0024] By adopting the above technical solution, the working strength of the fixing plate 4 is increased, and the working stability of the fixing plate 4 is improved.

[0025] Furthermore, the rubber ring 16 is slidably connected to the connecting groove 15, and one end of the disc spring 14 is fixed to the rubber ring 16 by welding.

[0026] By adopting the above technical solution, the firmness of the nut connection is increased, and the connection effect of the bolt is improved.

[0027] Furthermore, the outer surface of the rubber pad 8 is completely attached to the inner surface of the cleaning brush 10, and the rubber pad 8 and the cleaning brush 10 are fixed by bonding.

[0028] By adopting the above technical solution, it is convenient to clean the outer surface of the thread 6, and the connection effect of the bolt is improved.

[0029] Furthermore, one end of the positioning block 13 is completely attached to the inner surface of the moving plate 1, and the positioning block 13 and the moving plate 1 are fixed by welding.

[0030] By adopting the above technical solution, the firmness of the connection of the positioning block 13 is increased, and the working effect of the positioning block 13 is improved.

[0031] Furthermore, positioning balls are provided inside the positioning block 13.

[0032] By adopting the above technical solution, the positioning effect of the positioning block 13 is enhanced, and the working stability of the positioning block 13 is improved.

[0033] Working principle: During use, connecting rods 5 are arranged at both ends of the main body 2. Through the fixing plate 4 arranged between the connecting rod 5 and the main body 2, by using the disc spring 14 and the rubber ring 16 arranged on the inner side of the fixing plate 4, the rubber ring 16 can reduce the friction between the nut and the bolt when the nut is connected. Moreover, by using the disc spring 14, the firmness of the nut connection is increased, the loosening of the nut is reduced, and the reliability of the bolt connection is improved. A moving plate 1 is arranged on the outer side of the main body 2. Through the rubber pad 8 and the cleaning brush 10 arranged on the inner surface of the moving plate 1 and the sliding groove 12 and the positioning groove 11 arranged on the outer side of the main body 2, by using the positioning groove 11, the moving plate 1 can be moved to one end of the main body 2, and then by using the sliding groove 12, the moving plate 1 can be rotated back and forth, facilitating the cleaning brush 10 on the inner surface of the moving plate 1 to clean the thread 6 on the outer surface of the connecting rod 5, reducing the influence of the adhered dust on the connection effect of the bolt, and improving the connection effect of the bolt.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An internal stud bolt, comprising a main body (2), characterized in that: Both ends of the main body (2) are provided with connecting rods (5), the outer surface of the connecting rod (5) is provided with a thread (6), the inner side of the connecting rod (5) is provided with a reinforcing rod (7), a fixing plate (4) is provided between the connecting rod (5) and the main body (2), the outer surface of the fixing plate (4) is provided with a connecting groove (15), the inner side of the connecting groove (15) is provided with a disc spring (14), one end of the disc spring (14) is provided with a rubber ring (16), and the outer side of the main body (2) is provided with a moving plate ( 1), the outer surface of the main body (2) is evenly provided with through holes (3), the inner surface of the movable plate (1) is provided with a rubber pad (8), the inner side of the rubber pad (8) is provided with a fixing rod (9), the outer surface of the rubber pad (8) is provided with a cleaning brush (10), the outer surfaces of both ends of the movable plate (1) are provided with positioning blocks (13), the outer surfaces of the through holes (3) are provided with positioning grooves (11) at the positions of the positioning blocks (13), and the inner sides of both ends of the positioning grooves (11) are provided with sliding grooves (12).

2. The internal stud bolt according to claim 1, characterized in that: The connecting rod (5) is completely in contact with the outer surface of the main body (2), and the connecting rod (5) and the main body (2) are fixed by welding.

3. The internal stud bolt according to claim 1, characterized in that: The fixing plate (4) is inserted into the inner side of the main body (2) and fixed to the outer surface of the main body (2) by welding.

4. The internal stud bolt according to claim 1, characterized in that: The rubber ring (16) is slidably connected to the connecting groove (15), and one end of the disc spring (14) is fixed to the rubber ring (16) by welding.

5. The internal stud bolt according to claim 1, characterized in that: The outer surface of the rubber pad (8) is completely in contact with the inner surface of the cleaning brush (10), and the rubber pad (8) and the cleaning brush (10) are fixed by bonding.

6. The internal stud bolt according to claim 1, characterized in that: One end of the positioning block (13) is completely in contact with the inner surface of the movable plate (1), and the positioning block (13) and the movable plate (1) are fixed by welding.

7. The internal stud bolt according to claim 1, characterized in that: A positioning ball is arranged on the inner side of the positioning block (13).

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