CN201606377U

CN201606377U - Anti-theft screw

Info

Publication number: CN201606377U
Application number: CN2009201995914U
Authority: CN
Inventors: 吴金其; 郑存球; 郑小兰; 王永久
Original assignee: ZHEJIANG MINGTAI STANDARD PARTS CO Ltd
Current assignee: ZHEJIANG MINGTAI STANDARD PARTS CO Ltd
Priority date: 2009-11-04
Filing date: 2009-11-04
Publication date: 2010-10-13
Anticipated expiration: 2019-11-04

Abstract

The utility model discloses an anti-theft screw. The screw comprises a screw body; a screw head is arranged on the screw body; a linear horizontal slot is formed on the top surface of the screw head; a stress block is arranged on the clockwise side of the linear horizontal slot; an arc-shaped extended section extending from the linear horizontal slot to the top surface of the screw head is arranged on the anticlockwise side of the linear horizontal slot; and threads on the screw body are in arranged clockwise. The anti-theft screw has the advantages of simple structure, good anti-theft effect, etc.

Description

Anti-theft screw

Technical field

The utility model relates to a kind of screw, specifically a kind of anti-theft screw

Background technique

Screw and bolt are the most frequently used fastening pieces, and it is with its low price, easy to use and be widely used.But in some occasions, fix by screw as license plate, the billboard etc. that is located at the outside, but the lawless person can just dismantle screw by practical common screw-driver, thereby the phenomenon that license plate, billboard etc. are lost takes place, in order to prevent the generation of above-mentioned phenomenon, people have developed a variety of anti-theft screws or bolt, but facts have proved, often there is the structure more complicated in anti-theft screw or bolt on the market at present, the problem that cost is higher, some anti-theft screw also needs to use special tool(s), uses very inconvenient.

The model utility content

The purpose of this utility model is in order to overcome the shortcoming and defect that prior art exists, and provides a kind of simple in structure, the anti-theft screw of good anti-theft effect.

For achieving the above object, technological scheme of the present invention, include screw body, described screw body is provided with screw head, the end face of described screw head is provided with " one " font translot, side force block that turns to clockwise that should " one " font translot, and a side that turns to counterclockwise that should " one " font translot is provided with the arc extension that is extended to the screw head end face by " one " font translot, and the screw thread on the described screw body is the clockwise direction setting.By this setting, be embedded into " one " font translot by the flat head screw-driver, because having force bearing point to promote screw, clockwise direction changes over to, and counterclockwise owing to be the arc extension, therefore screw-driver has no way of borrowing power, can not screw out thereby make the utility model to screw in, and therefore makes the utility model after installing, can't be disassembled, thereby reach anti-theft effect.

Further be provided with is that described screw head is for circular.Originally be arranged so that the utility model profile meets NBS.

Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.

Description of drawings

Fig. 1 the utility model embodiment perspective view;

Fig. 2 the utility model embodiment front view.

Embodiment

Embodiment of the present utility model shown in Fig. 1-2, include screw body 1, described screw body 1 is provided with screw head 11, the end face of described screw head 11 is provided with " one " font translot 111, be somebody's turn to do a side force block 112 that turns to clockwise of " one " font translot 111, and a side that turns to counterclockwise of being somebody's turn to do " one " font translot 111 is provided with the arc extension 113 that is extended to the screw head end face by " one " font translot, and the screw thread 12 on the described screw body 1 is the clockwise direction setting.

The utility model, be embedded into " one " font translot 111 by the flat head screw-driver, because having force block 112 to promote screw, clockwise direction changes over to, and counterclockwise owing to be arc extension 113, therefore screw-driver has no way of borrowing power, can not screw out thereby make the utility model to screw in, and therefore makes the utility model after installing, can't be disassembled, thereby reach anti-theft effect.

Present embodiment is that described screw head 11 is circular in addition, makes the utility model profile meet NBS.Certainly this screw head 11 of the utility model also can be shapes such as hexagon head, square toes.

Claims

1. anti-theft screw, include screw body, described screw body is provided with screw head, it is characterized in that: the end face of described screw head is provided with " one " font translot, be somebody's turn to do a side force block that turns to clockwise of " one " font translot, and a side that turns to counterclockwise of being somebody's turn to do " one " font translot is provided with the arc extension that is extended to the screw head end face by " one " font translot, and the screw thread on the described screw body is the clockwise direction setting.

2. anti-theft screw according to claim 1 is characterized in that: described screw head is for circular.