Locating and releasing device of fireproof door monitoring system

Abstract

The invention discloses a locating and releasing device of a fireproof door monitoring system. The locating and releasing device comprises a fixed seat and a locating and releasing component; the fixed seat is arranged on a fireproof door, the locating and releasing component is arranged on a wall, electrically connected with a fireproof door monitor in the fireproof door monitoring system and flexibly connected with the fixed seat through a chain, and the locating and releasing component comprises a shell, a limiting executing mechanism and a connecting mechanism. An opening is formed in one end of the shell, the limiting executing mechanism is contained in a containing cavity of the shell and comprises a circuit board arranged in the shell, an electromagnetic component electrically connected with the circuit board, and an elastic limiting component magnetically connected with the electromagnetic component, and the connecting mechanism is clamped on the elastic limiting component through the opening and is driven by the electromagnetic component to be selectively connected with the chain. The locating and releasing device has good communication capacity and is simple in structure, the requirement of the system for power supply is reduced, and therefore cost is reduced.

Description

technical field [0001] The invention relates to the technical field of a fire door monitoring system, more specifically, the invention relates to a positioning and releasing device for a normally open fire door in a fire door monitoring system with simple structure and good communication capability. Background technique [0002] Fire doors are commonly used openable and closed fireproof partition components in various buildings. The normal opening and closing of fireproof doors can ensure that people can quickly and safely evacuate and escape in the event of a fire. Losses play a crucial role. [0003] The fire door monitoring system is composed of a fire door monitor, a monitoring module, a door magnetic switch and a positioning and releasing device. It can realize 24-hour real-time monitoring of the status of fire doors, can display the switch status of all fire doors online, and has sound and light alarm and recording functions. After a fault alarm, it can be dealt with ...

AI Technical Summary

Problems solved by technology

[0005] The door opening positioning function is poor, and there are problems that it cannot be positioned or needs to be selected and debugged according to the type of door to be able to locate. It has high requirements for installation and cannot be positioned when the fire door is deformed;

[0006] It needs DC24V power supply to the electromagnetic release and the electromagnetic door stopper. The electromagnet works to make the door stopper close to keep the fire door in the normal open state. The working current of each device needs 80mA-100mA, and the power is 1.92W. The power consumption is large and not energy-saving. , high power supply requirements for the system, and troublesome wiring; if there are a large number of normally open fire doors, each normally open fire door needs to be installed with such a device, resulting in poor load capacity of the fire door monitoring system bus and shortened communication distance. Unreliable communication or slow response time;

[0007] When a fire needs to close the normally open fire door, the system needs to cut off the power supply of the device system; and there is no manual starting mechanism, so the purpose of manual starting cannot be achieved

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