Door lock of roller shutter door and working principle of door lock

Abstract

The invention discloses a door lock of a roller shutter door and a working principle of the door lock and relates to the technical field of roller shutter doors. The door lock of the roller shutter door comprises a lock cylinder, a spring, a pull cord, a separation and reunion device and a motor, wherein the spring drives the lock cylinder to move toward the roller shutter door and locks the roller shutter door, one end of the pull cord is connected with the lock cylinder, and the other end of the pull cord is connected with the separation and reunion device; the motor drives the separation and reunion device to roll up the pull cord, so that the lock cylinder is separated from the roller shutter door and unlocks the roller shutter door; after the motor stops, the spring stretches the pull cord which is rolled by the separation and reunion device, and the lock cylinder is driven to move toward the roller shutter door and lock the roller shutter door. The door lock has the advantages that no additional operation is needed for unlocking or locking the roller shutter door, the roller shutter door only needs to be ascended or descended normally, the roller shutter door unlocking or locking operation can be completed automatically through the door lock of the roller shutter door, operation is simple, and the antitheft effect is good.

Description

technical field [0001] The invention relates to the technical field of rolling doors, in particular to a rolling door lock and its working principle. Background technique [0002] The door leaf of the rolling door is a movable door leaf composed of multiple door panels connected in series. The door leaf is rolled up and down to realize the opening and closing of the door. At present, the opening and closing of the rolling door is realized by the operation of the rolling door motor set on the rolling door reel. Usually, the rolling door does not have a separate door lock. , relying entirely on the self-locking function of the rolling shutter door motor, it is easy to be pried open, and the anti-theft performance is poor. In order to improve the anti-theft performance of the rolling door, a mechanical lock is usually installed on the door leaf of the rolling door at present. Although the mechanical lock increases the anti-theft performance of the rolling door, manual operatio...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a rolling shutter door lock and its working principle to overcome the disadvantages that the existing rolling door has no special lock device, needs to be manually unlocked after adding a mechanical lock, the operation steps are cumbersome, and the anti-theft effect is poor.

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