An anti-theft cat's eye device

Abstract

The invention discloses an anti-theft cat's eye device. The connecting structure includes a plurality of circles of first inverted teeth formed on the insertion end of the hollow inner tube or the hollow outer tube, and formed on the hollow outer tube or the hollow outer tube. Several circles of the extending end of the hollow inner tube are suitable for engaging with the second inverted tooth of the first tooth, and are axially formed on the extending end of the hollow inner tube or the hollow outer tube At least one open slot on the side wall for the cooperation of the first inverted tooth and the second inverted tooth, and sleeved on the hollow inner tube or the hollow outer tube provided with the open slot , under the push of the installation tool, move the ferrule that fastens the nozzle provided with the open groove to the direction of the open groove. Therefore, the arrangement of the connecting structure makes the anti-theft peephole device not only easy to assemble, but also can adjust the cooperation between the hollow inner tube and the hollow outer tube before locking.

Description

technical field [0001] The invention relates to a cat's eye device, in particular to an anti-theft cat's eye device with anti-theft function. Background technique [0002] Cat's eye, also known as door mirror, is a small optical instrument installed on the door of a residential house, which is convenient for residents to observe the outdoor situation. In the cat's eye device in the prior art, the hollow pipe seat and the hollow fixed seat are installed in the door opening of the door through a threaded connection, so that the hollow pipe seat can be rotated outside the door, and the hollow pipe seat and the hollow fixed seat can be connected to each other. In order to remove the hollow pipe seat from the door opening, not only is it easy to lose the hollow pipe seat and the hollow fixing seat, but also the thief can easily use tools to drive the internal door handle or other door opening devices through the door opening, and open the door outside the door. Open and then bur...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the anti-theft structure in the cat's eye device of the prior art is not easy to assemble, and the hollow pipe part and the hollow fixing seat are screwed together to realize locking, which is inconvenient for the hollow pipe part and the hollow holder. The assembly adjustment of the hollow fixing seat provides an anti-theft peephole device that is easy to assemble and can be assembled and adjusted between the hollow tube part and the hollow fixing seat

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