Ratchet type anti-theft device

Abstract

The invention discloses a ratchet type anti-theft device which is good in protection and not prone to damage. The ratchet type anti-theft device comprises a ratchet module, a protection module and ananti-theft module, wherein the ratchet module is located at the upper end of the protection module, the ratchet module is provided with a connecting column, the connecting column is connected with thelower end of the ratchet module, the protection module is connected with the outer edge of the connecting column, the lower end of the connecting column is connected with a connecting table, the anti-theft module is connected with the connecting table, and the connecting table and the anti-theft module are both located inside the protection module. The ratchet type anti-theft device has the beneficial effects that the anti-theft device is good in protection and not prone to damage; tightening can be achieved due to stress on the side surfaces of ratchet teeth, reverse rotation can be prevented as no stress point exists on the side surfaces of the ratchet teeth, and thus the antitheft property is ensured; the antitheft property is enhanced through the matching of antitheft plates and an antitheft ring; and good stability performance is achieved.

Description

technical field [0001] The invention relates to the technical field of anti-theft, in particular to a ratchet-type anti-theft device. Background technique [0002] Conventional nuts do not have an anti-theft function, but in some special applications, such as power transmission towers in power systems, communication systems, highways and other field facilities, in order to prevent damage by criminals, fastening nuts are required to have anti-theft functions. There are various anti-theft methods in the prior art, such as directly setting an anti-theft structure on the nut, or installing an anti-theft device on the nut. At present, the anti-theft device installed on the nut has insufficient stability, and the anti-theft device itself is easy to wear. Contents of the invention [0003] The present invention aims to overcome the disadvantages of poor protection and easy damage of the anti-theft device itself in the prior art, and provides a ratchet type anti-theft device with...

AI Technical Summary

Problems solved by technology

[0003] The invention aims to overcome the disadvantages of poor protection and easy damage of the anti-theft device itself in the prior art, and provides a ratchet-type anti-theft device with good protection and not easy to be damaged.

Images