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Falling prevention screw

A technology for preventing protruding and screws, applied in the direction of screws, nuts, bolts, etc., can solve laborious and complicated problems, achieve the effects of reducing processing difficulty, improving the meshing force between threads, and reducing complexity

Inactive Publication Date: 2018-05-18
柳州上丰自动化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the laborious and complicated technical problem of increasing the engagement force in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides an anti-extraction screw, such as figure 1 , including a nut 1 and a screw body 2, the screw body 2 is a cylinder, and threads are provided on the side of the cylinder, the nut 1 is fixedly connected with one end of the screw body 2, and a concave hollow cavity 3 is set in the screw body 2 The end of the concave hollow cavity 3 away from the nut 1 is provided with a film 4 for the concave hollow cavity 3; the film 4 is provided with a penetrating mechanism, and the penetrating mechanism is pressed to puncture the film 4 when the screw is screwed to the bottom of the screw hole ; The concave hollow cavity 3 is filled with liquid thread glue.

[0026] This embodiment: In this embodiment, a cavity with a concave shape is provided in the middle of the screw body 2 . The inside of the cavity is filled with thread glue, and a film 4 is set on the plane of the cavity for sealing, and then a mechanism is arranged behind the film 4 to pierce the film 4 ...

Embodiment 2

[0032] Such as figure 2 In this embodiment, the concave hollow cavity 3 is formed by the through screw body 2 and the nut 1 sealed, and the screw body 2 and the nut 1 are connected by welding. All the other schemes are the same as in Example 1.

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Abstract

The invention relates to a falling prevention screw in order to solve the technical problem that operation of a mode for increasing engaging force needs great effort and is complicated. The falling prevention screw comprises a nut (1) and a screw body (2); the screw body (2) is a cylinder; threads are formed in the side surface of the cylinder; the nut (1) is fixedly connected with one end of thescrew body (2); a U-shaped hollow cavity (3) is formed in the screw body (2); a film (4) is arranged at one end, far from the nut (1), of the U-shaped hollow cavity (3) and is used for the U-shaped hollow cavity (3); a penetrating mechanism is arranged at the exterior of the film (4); the penetrating mechanism is stressed to puncture the film (4) when the falling prevention screw is screwed to thebottom of a screw hole; and the U-shaped hollow cavity (3) is filled with a liquid thread-locking adhesive. With the adoption the technical scheme, the problem that the operation of the mode for increasing engaging force needs the great effort and is complicated is solved well, and the technical scheme can be used for screw strengthening.

Description

technical field [0001] The invention relates to the field of mechanical accessories, in particular to an anti-extraction screw. Background technique [0002] Screws are a common fastener widely used in machinery, electrical appliances and buildings. The general material is metal or plastic, and it is cylindrical in shape, and the concave-convex grooves engraved on the surface are called threads. [0003] The screw generally includes a nut and a screw body. The nut is provided with a groove for twisting that coincides with the tool, and the screw body is provided with threads for fixing the screw after engaging with the threads of the threaded hole. The existing way to increase the meshing force is to manually apply thread glue on the screws, which is time-consuming and labor-intensive. Therefore, the present invention provides a high-strength, pull-out-resistant screw. Contents of the invention [0004] The technical problem to be solved by the invention is the laboriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00F16B39/22
CPCF16B35/00F16B39/22
Inventor 蒙衍强莫思准彭延辉
Owner 柳州上丰自动化设备有限公司
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