Safety screw

A screw and safe technology, applied in the direction of screws, nuts, bolts, etc., to achieve the effect of simple screw structure, powerful anti-theft function and long service life
CN105909652AInactive Publication Date: 2016-08-31TIANJIN DARENSHE METAL PROD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN DARENSHE METAL PROD
Publication Date
2016-08-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a safety screw. The safety screw comprises a hexagon nut and a threaded rod, wherein a circular ring shaped groove is formed in the top of the hexagon nut, a locking magnetic snap is arranged in the circular ring shaped groove, the locking magnetic snap keep a downward stress through a stress part, and the bottom of the locking magnetic snap is outwardly provided a wedge-shaped cross section; the hexagon nut is provided with a circular through hole in the side wall of the circular ring shaped groove, an ejector rob is arranged in the circular through hole, the ejector rob can move along the circular through hole, an oblique plane matched with the wedge-shaped cross section is arranged at the end part of an inner side of the ejector rob, the wedge-shaped cross section moves downward to push the ejector rob to an outer side, an arc-shaped platform is fixed at the end part on the outer side of the ejector rob, and when the ejector rob is positioned in an innermost position, the arc-shaped platform is hidden in a hiding tank on a side surface of the hexagon nut. The safety screw provided by the invention has the following advantages: the screw structure is simple, the connecting is firm and good, the probability of looseness is low, the service life is long, a strong anti-theft function is played during a using process, and the safety screw is particularly applicable to occasions with relatively high requirements to screw safety performance.
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Description

technical field

[0001] The invention belongs to the technical field of hardware fasteners, and in particular relates to a safety screw. Background technique

[0002] The use of screws and bolts in important places is related to the safety of the overall operation of the equipment, especially in public places and open-air places. Theft of screws will cause major safety hazards. The existing screws are simple in structure and widely used, but their anti-theft performance is poor. It is easy to loosen, and there is a potential safety hazard in long-term use. Therefore, it is necessary to further improve and perfect the existing screw structure. Contents of the invention

[0003] In view of this, the present invention aims to provide a safety screw to solve the problem of anti-theft and safe use of the screw in open air and public places.

[0004] In order to achieve the above object, the technical solution created by the present invention is achieved in this way:

[0005] A...

Claims

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