Combined adjusting type bolt and nut

Abstract

The utility model discloses a combined adjusting type bolt and nut which comprises a screw rod, a nut cap is arranged at the lower end of the screw rod, an adjusting rod is arranged at the upper end of the screw rod, a nut is arranged on the outer side of the screw rod, a connecting rod is arranged on the inner side of the screw rod, a lead screw is arranged at the lower end of the connecting rod, and a movable ring is arranged on the outer side of the lead screw. A cavity is formed in the inner side of the lower end of the screw rod, positioning plates are evenly arranged on the outer side of the cavity and slidably connected with the nut through hinges, connecting rods are arranged between the positioning plates and the movable ring, elastic plates are arranged on the outer sides of the positioning plates, and anti-skid pads are arranged on the outer surfaces of the elastic plates. A groove is formed in the lower surface of the nut, a disc spring is arranged on the inner side of the groove, a limiting plate is arranged at the lower end of the disc spring, and anti-skid stripes are arranged on the lower surface of the limiting plate. The nut is convenient for a worker to install, and the installation firmness of the nut is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts and nuts, and particularly relates to a combined adjustable bolt and nut. Background Technique

[0002] Bolt: A mechanical part, a cylindrical threaded fastener used with a nut. A type of fastener composed of two parts, a head and a screw rod (a cylinder with external threads), which needs to cooperate with a nut to be used for firmly connecting two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection belongs to a detachable connection.

[0003] However, when the existing combined adjustable bolt and nut is installed, due to the installation holes, it is necessary to hold the bolt when installing the nut, resulting in slow installation by the workers, and the nut is prone to looseness after long-term installation; therefore, it does not meet the existing requirements, and for this reason, we propose a combined adjustable bolt and nut. Content of the Utility Model

[0004] The purpose of the utility model is to provide a combined adjustable bolt and nut to solve the problems in the above background technique that when the existing combined adjustable bolt and nut is installed, due to the installation holes, it is necessary to hold the bolt when installing the nut, resulting in slow installation by the workers, and the nut is prone to looseness after long-term installation, etc.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A combined adjustable bolt and nut, including a screw rod, a nut is arranged at the lower end of the screw rod, an adjusting rod is arranged at the upper end of the screw rod, a nut is arranged on the outer side of the screw rod, a connecting rod is arranged inside the screw rod, a lead screw is arranged at the lower end of the connecting rod, a moving ring is arranged on the outer side of the lead screw, a cavity is arranged inside the lower end of the screw rod, positioning plates are evenly arranged on the outer side of the cavity, the positioning plates are slidably connected with the nut through hinges, a connecting rod is arranged between the positioning plates and the moving ring, an elastic plate is arranged on the outer side of the positioning plates, an anti-slip pad is arranged on the outer surface of the elastic plate, a groove is arranged on the lower surface of the nut, a disc spring is arranged inside the groove, a limiting plate is arranged at the lower end of the disc spring, and anti-slip stripes are arranged on the lower surface of the limiting plate.

[0006] Preferably, both ends of the connecting rod are slidably connected with the moving ring and the positioning plate.

[0007] Preferably, one side of the elastic plate is completely attached to the outer surface of the positioning plate, and the elastic plate is fixed to the positioning plate by screws.

[0008] Preferably, the upper end of the connecting rod is fixedly connected with the adjusting rod by welding, and the adjusting rod is slidably connected with the screw rod.

[0009] Preferably, the upper end of the disc spring is completely attached to the inner wall of the groove, and the disc spring and the groove are fixed by welding.

[0010] Preferably, the lower surface of the disc spring is completely attached to the upper surface of the limiting plate, and the disc spring and the limiting plate are fixed by screws.

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

[0012] 1. Through the positioning plate, elastic plate and anti-slip pad arranged at the lower end of the screw rod of the present utility model, by rotating the adjusting rod, the connecting rod drives the screw rod at the lower end to rotate, and then through screw rod transmission, the moving ring moves downward uniformly. Using the link mechanism, the positioning plate is pushed to move outwards, so that the elastic plate and the anti-slip pad are attached to the inner wall of the connection hole, positioning the bolt, which is convenient for the staff to install the nut and improves the installation efficiency of the staff.

[0013] 2. By arranging a disc spring, a limiting plate and anti-slip stripes on the lower surface of the nut of the present utility model, the firmness and reliability of the nut connection are increased by using the disc spring and the limiting plate, the loosening caused by long-term installation of the nut is reduced, and the installation effect of the nut is improved. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 is a schematic internal structural diagram of the whole of the present utility model;

[0016] Figure 3 is an enlarged schematic diagram of the structure A of the present utility model;

[0017] Figure 4 is a partial structural diagram of the present utility model.

[0018] In the figure: 1. Adjusting rod; 2. Nut; 3. Screw rod; 4. Nut; 5. Connecting rod; 6. Moving ring; 7. Cavity; 8. Positioning plate; 9. Hinge; 10. Link; 11. Elastic plate; 12. Anti-slip pad; 13. Groove; 14. Disc spring; 15. Limiting plate; 16. Anti-slip stripes; 17. Screw rod. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 4, an embodiment provided by the present utility model: a combined adjustable bolt and nut, including a screw rod 3, a nut 4 is arranged at the lower end of the screw rod 3, an adjusting rod 1 is arranged at the upper end of the screw rod 3, a nut 2 is arranged outside the screw rod 3, a connecting rod 5 is arranged inside the screw rod 3, a lead screw 17 is arranged at the lower end of the connecting rod 5, a moving ring 6 is arranged outside the lead screw 17, a cavity 7 is arranged inside the lower end of the screw rod 3, positioning plates 8 are uniformly arranged outside the cavity 7, the positioning plates 8 are slidably connected with the nut 4 through hinges 9, a connecting rod 10 is arranged between the positioning plates 8 and the moving ring 6, an elastic plate 11 is arranged outside the positioning plates 8, an anti-slip pad 12 is arranged on the outer surface of the elastic plate 11, a groove 13 is arranged on the lower surface of the nut 2, a disc spring 14 is arranged inside the groove 13, a limiting plate 15 is arranged at the lower end of the disc spring 14, and anti-slip stripes 16 are arranged on the lower surface of the limiting plate 15.

[0021] Furthermore, both ends of the connecting rod 10 are slidably connected with the moving ring 6 and the positioning plate 8.

[0022] By adopting the above technical solution, the working stability of the connecting rod mechanism is increased.

[0023] Furthermore, one side of the elastic plate 11 is completely attached to the outer surface of the positioning plate 8, and the elastic plate 11 and the positioning plate 8 are fixed by screws.

[0024] By adopting the above technical solution, the connection firmness of the elastic plate 11 is increased, and the working stability of the elastic plate 11 is improved.

[0025] Furthermore, the upper end of the connecting rod 5 is fixedly connected with the adjusting rod 1 by welding, and the adjusting rod 1 is slidably connected with the screw rod 3.

[0026] By adopting the above technical solution, the connection firmness of the connecting rod 5 is increased, and the adjustment effect of the connecting rod 5 is improved.

[0027] Furthermore, the upper end of the disc spring 14 is completely attached to the inner wall of the groove 13, and the disc spring 14 and the groove 13 are fixed by welding.

[0028] By adopting the above technical solution, the connection firmness of the disc spring 14 is increased, and the working stability of the disc spring 14 is improved.

[0029] Furthermore, the lower surface of the disc spring 14 is completely attached to the upper surface of the limiting plate 15, and the disc spring 14 and the limiting plate 15 are fixed by screws.

[0030] By adopting the above technical solution, the connection firmness of the limiting plate 15 is increased, and the reliability of nut installation is improved.

[0031] Working principle: When in use, insert the bolt into the connection hole. Through the positioning plate 8, elastic plate 11 and anti-slip pad 12 provided at the lower end of the screw rod 3, rotate the adjusting rod 1 to drive the screw rod 17 at the lower end by the connecting rod 5, and then use the screw drive to make the moving ring 6 move downward at a uniform speed. Use the linkage mechanism to push the positioning plate 8 to move outward, so that the elastic plate 11 and the anti-slip pad 12 are attached to the inner wall of the connection hole, position the bolt, which is convenient for the staff to install the nut 2, improves the installation efficiency of the staff. By providing the disc spring 14, limit plate 15 and anti-slip stripes 16 on the lower surface of the nut 2, using the disc spring 14 and the limit plate 15, the firmness and reliability of the connection of the nut 2 are increased, the loosening of the nut 2 caused by long-term installation is reduced, and the installation effect of the nut 2 is improved.

[0032] 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, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A combined adjustable bolt and nut, comprising a screw rod (3), characterized in that: A nut (4) is provided at the lower end of the screw rod (3), an adjusting rod (1) is provided at the upper end of the screw rod (3), a nut (2) is provided on the outer side of the screw rod (3), a connecting rod (5) is provided inside the screw rod (3), a lead screw (17) is provided at the lower end of the connecting rod (5), a moving ring (6) is provided on the outer side of the lead screw (17), a cavity (7) is provided inside the lower end of the screw rod (3), positioning plates (8) are uniformly provided on the outer side of the cavity (7), the positioning plates (8) and the nut (4) are slidably connected through hinges (9), a connecting rod (10) is provided between the positioning plates (8) and the moving ring (6), an elastic plate (11) is provided on the outer side of the positioning plate (8), an anti-slip pad (12) is provided on the outer surface of the elastic plate (11), a groove (13) is provided on the lower surface of the nut (2), a disc spring (14) is provided inside the groove (13), a limiting plate (15) is provided at the lower end of the disc spring (14), and anti-slip stripes (16) are provided on the lower surface of the limiting plate (15).

2. The combined adjustable bolt and nut according to claim 1, characterized in that: Both ends of the connecting rod (10) are slidably connected to the moving ring (6) and the positioning plate (8).

3. The combined adjustable bolt and nut according to claim 1, characterized in that: One side of the elastic plate (11) is completely attached to the outer surface of the positioning plate (8), and the elastic plate (11) and the positioning plate (8) are fixed by screws.

4. The combined adjustable bolt and nut according to claim 1, characterized in that: The upper end of the connecting rod (5) is fixedly connected to the adjusting rod (1) by welding, and the adjusting rod (1) is slidably connected to the screw rod (3).

5. The combined adjustable bolt and nut according to claim 1, characterized in that: The upper end of the disc spring (14) is completely attached to the inner wall of the groove (13), and the disc spring (14) and the groove (13) are fixed by welding.

6. A combined adjustable bolt and nut according to claim 1, characterized in that: The lower surface of the disc spring (14) is completely attached to the upper surface of the limiting plate (15), and the disc spring (14) and the limiting plate (15) are fixed by screws.

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