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Anti-falling screw

A technology for preventing falling off and screws, applied in the direction of screws, nuts, bolts, etc., can solve the problems of inconvenient use of ordinary screws, harm to the human body, rust of screws, etc., and achieve the effect of saving working time, increasing friction and improving service life

Inactive Publication Date: 2018-02-16
CHENGDU XINXIN HIGH STRENGTH FASTENER MFRCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is: an anti-falling screw, which solves the problems of inconvenient use of ordinary screws, wear of the groove after repeated use, and easy fall off, which causes the screw to rust and harm the human body.

Method used

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Embodiment Construction

[0021] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0022] Combine below figure 1 The present invention will be described in detail.

[0023] An anti-falling screw, comprising a screw head 1 and a screw shaft 2, the screw head 1 is a circular cylinder, the surface is sprayed with a layer of wear-resistant coating 6, the top of the screw head 1 is provided with a groove 11 and a cross The groove 12 is provided with a protective edge 3 around the cylinder; the surface of the screw rod 2 is formed with external threads, and the upper part 21 of the screw rod near the screw head 1 is provided with an elastic ring 4 .

[0024] The protective edge 3 surrounds the screw head 1 in a wing shape. When the screw is nailed into an object, it can firmly hold the surface of the object, and its rebound force can keep the pressing force and friction between the threads, so as to prevent loosening; with this protection Edge 3...

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Abstract

The invention discloses an anti-falling screw, which belongs to the field of fasteners. The structure includes a screw head and a screw rod. The screw head is a circular cylinder with a layer of wear-resistant coating sprayed on the surface. The structure overlaps a word groove and a cross groove, and the groove is provided with a magnet adsorption film and a wear-resistant layer, and a wing-shaped protective edge is provided around the screw head cylinder; the surface of the screw rod forms an external thread The outer surface of the upper part of the screw rod near the screw head is provided with an elastic ring. The invention solves the problems of inconvenient use of ordinary screws, wear of the groove after repeated use, and easy falling off, which causes the screw to rust and harm the human body.

Description

technical field [0001] An anti-falling screw belongs to the field of fasteners, in particular to a screw. Background technique [0002] Screws are fasteners used to fix objects, and are widely used. Usually, the screws are installed in the screw holes of the objects to be fixed and the objects connected to the fixed objects, and then the fixing can be implemented. Ordinary screws currently on the market have a single structure, only the screw head and the screw shaft. The screw head is either a cross hole or a slotted hole. Convenience also increases the work procedure and reduces work efficiency; after many times of use, the surface of the screw head is severely worn, resulting in slippage and cannot be used again. The screw rod has only ordinary threads, and the friction is not enough. It is easy to loosen with the vibration or inertia of the component, which may cause other objects to be wrapped around the screw, and may scratch the hands, hurt the human body, and even l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B23/00F16B33/06F16B39/24F16B41/00F16B43/00
CPCF16B23/0015F16B23/0023F16B23/0092F16B33/06F16B39/24F16B41/002F16B43/001
Inventor 张永生
Owner CHENGDU XINXIN HIGH STRENGTH FASTENER MFRCO
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