Access control device

• Main Authors: ZHANG XIAOBIN, PAN AIQIONG
• Format: Patent
• Language: Chinese; English
• Published: 11.02.2022
• Subjects: ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CHECKING-DEVICES; GENERATING RANDOM NUMBERS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; TIME OR ATTENDANCE REGISTERS; VOTING OR LOTTERY APPARATUS

The utility model relates to an access control device which is also called as an access entrance and exit automatic management system, relates to a plurality of new technical fields of electronics, machinery, optics, computer technology, communication technology, biotechnology and the like, and the existing access control device can be divided into a fingerprint access control device, a visual access control device and a card swiping access control device according to opening modes. The systems are mostly realized by adopting a radio frequency technology, and a worm gear and a worm can be controlled to be separated or meshed through power on and power off of a first electromagnet, so that a self-locking or normally-open state of the door is realized, the movable door cannot be pushed in a power-on state, and the movable door can be emergently braked and prevented from being clamped when being touched, and the service life of the movable door is prolonged. When power is suddenly cut off, the first electromagne