Automatic anti-theft lock and roller shutter door

Abstract

The invention discloses an automatic anti-theft lock. The automatic anti-theft lock comprises a telescopic sheet and locking devices, wherein the telescopic sheet is connected to the roller shutter end of a roller shutter door; the pair of locking devices are used for being matched with the side wall of a side rail of the roller shutter door, each locking device comprises a connecting sheet and a lock sheet which are connected together in a hinged mode, one end, far away from the corresponding lock sheet, of each connecting sheet is connected to the telescopic sheet in a hinged mode, one end, far away from the corresponding connecting sheet, of the lock sheet is connected to a bottom beam end clamp of the roller shutter door in a hinged mode, the actual length between two hinged-connection points in each locking device is larger than the linear distance between the two hinged-connection points, and one side, close to the side wall of a rail of one side of the roller shutter door, of one end, hinged to the corresponding connecting sheet, of each lock sheet is provided with a sharp corner. With the structure, not only can automatic opening and closing be achieved, deformation of each locking device is restorable, it is avoided that the roller shutter door can not be normally opened because the locking devices are blocked, meanwhile, the automatic anti-theft lock is simple in structure and low in manufacturing cost, and the using and maintaining cost of the roller shutter door is reduced. The invention further discloses the roller shutter door.

Description

technical field [0001] The invention relates to the technical field of rolling doors, in particular to an anti-theft automatic lock and a rolling door. Background technique [0002] The rolling shutter door is connected in series with multi-joint movable curtains, installed in the side track, and the upper and lower doors are rotated around the scroll above the door. High performance, suitable for commercial facades, garages, shopping malls, hospitals, industrial and mining enterprises and other public places or residences. When using a rolling door, an anti-theft lock is usually set on the rolling door as needed. [0003] In the prior art, see figure 1 and figure 2 , figure 1 It is a structural schematic diagram of the non-working state of the anti-theft lock of the rolling shutter door in the prior art; figure 2 It is a structural schematic diagram of the working state of the rolling door anti-theft lock in the prior art. It can be seen from the figure that the ant...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides an automatic anti-theft lock to avoid the problem that the anti-theft lock is stuck due to the prying of the bottom beam and the rolling door cannot be opened normally after being used for the rolling door, and to reduce the use and maintenance cost of the rolling door the goal of

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