A new anti-theft device

Abstract

The invention discloses a novel anti-theft device which comprises a connecting rod, a hinge base and a fixed base. One end of the connecting rod is rotationally connected with the hinge base, the other end of the connecting rod is fixedly provided with a locking mechanism, the hinge base comprises a base plate and a pin shaft arranged at the middle portion of the upper end face of the base plate,a rotating sleeve is arranged at the end, located on the hinge base, of the connecting rod and is rotationally installed outside the pin shaft in a sleeving manner, an upper cover is in threaded connection to the upper end of the pin shaft, a limiting column is arranged at the edge of the upper end face of the base plate, an arc-shaped protrusion block is arranged on the upper end face of the fixed base, an arc-shaped groove is formed in the inner wall of the arc-shaped protrusion block, the locking mechanism comprises a supporting base and a cover plate in threaded connection to the upper endof the supporting base, the two side walls of the supporting base are provided with bolt mechanisms, a rotary disc is rotationally connected to the interior of the supporting base, a reset mechanismis arranged between the rotary disc and the supporting base, and a handle mechanism is arranged on the cover plate. Compared with a traditional novel anti-theft device, the novel anti-theft device improves the anti-theft effect.

Description

technical field [0001] The invention relates to a novel anti-theft device. Background technique [0002] At present, the anti-theft chain device is generally installed on the door of the hotel room. The anti-theft chain device installed on the hotel door generally includes a first fixed seat and a second fixed seat. The first fixed seat is fixed on the door frame, and the second fixed seat The seat is fixed on the door body, the first fixed seat is fixedly connected with a chain, the end of the chain away from the first fixed seat is provided with a lock catch, and the second fixed seat is provided with a lock slot for locking with the lock catch, but When this kind of anti-theft chain is in use, in order to make the lock buckle enter the lock groove, the length of the chain is generally longer. After the door lock is opened, because the length of the chain is longer, the door can still be opened Open a certain angle, so that criminals can still break the anti-theft chain d...

AI Technical Summary

Problems solved by technology

[0002] At present, the anti-theft chain device is generally installed on the door of the hotel room. The anti-theft chain device installed on the hotel door generally includes a first fixed seat and a second fixed seat. The first fixed seat is fixed on the door frame, and the second fixed seat The seat is fixed on the door body, the first fixed seat is fixedly connected with a chain, the end of the chain away from the first fixed seat is provided with a lock catch, and the second fixed seat is provided with a lock slot for locking with the lock catch, but When this kind of anti-theft chain is in use, in order to make the lock buckle enter the lock groove, the length of the chain is generally longer. After the door lock is opened, because the length of the chain is longer, the door can still be opened Open a certain angle, so criminals can still break the anti-theft chain device, there is a big security risk

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