Self-locking door capable of reducing door closing noise based on electromagnetic principle

Abstract

The invention relates to the technical field of enterprise management, and discloses a self-locking door capable of reducing door closing noise based on an electromagnetic principle. The self-lockingdoor comprises a door frame, wherein a door plate is movably hinged to the right end of the door frame, and a fixing frame is fixedly installed at the upper end of the interior of the door plate. According to the self-locking door, when the door plate is closed, a gear is rotated to drive a toothed plate to move rightwards in the fixing frame, the toothed plate drives a sliding rod at the left endto move rightwards together, meanwhile, a capacitor plate is driven to be opposite to an electrode plate, the area, opposite to the electrode plate, of the capacitor plate is reduced, the electric quantity passing through the capacitor plate is slowly reduced, then a signal is transmitted to an electromagnet, the voltage on the electromagnet is reduced, the magnetism is weakened, the repulsive force on a permanent magnet block is gradually reduced along with the increase of the distance, away from the electrode plate, of the capacitor plate, so that noise generated on the door frame loaded onthe door plate during door closing is avoided, and the magnetic repulsive force is used for replacing the buffering force of a spring so that the service life of an access control device can be better prolonged.

Description

technical field [0001] The invention relates to the technical field of enterprise management, in particular to a self-locking door that reduces door closing noise based on electromagnetic principles. Background technique [0002] Enterprise management is the general term for a series of activities such as planning, organizing, directing, and coordinating the production and operation activities of enterprises. It is an objective requirement of socialized mass production. A good enterprise cannot do without orderly management. Most companies will An access control card is set up at the entrance and exit of employees, and employees can enter the company only through fingerprints or facial recognition. On the one hand, it can prevent outsiders from entering, and on the other hand, it can record the behavior and times of employees entering and leaving the company. [0003] But at present, most of the access control devices usually produce a lot of noise when closing the door. If ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a self-locking door that reduces the noise of closing the door based on the electromagnetic principle, which has the advantages of effectively reducing the noise of closing the door and has the advantages of automatic locking, etc. , the sound of closing the door is loud, disturbing the rest of the employees or the problem of normal work

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