Fire door electric door closer

Abstract

The invention discloses a fireproof door electric door closer, comprising a chute and a door closer main body, wherein the door closer main body is connected with the chute through a connecting rod and a lock tongue, a sliding mechanism is arranged in the chute, wiring mechanisms are arranged at two ends of the chute, a limit actuator for being fixed with a door, a control unit and a door closing in place mechanism are arranged between the two wiring mechanisms in sequence, the door closing in place mechanism is provided with a hand reset function key, and is fixed in the chute through a slotted set screw with flat point. According to the fireproof door electric door closer disclosed by the invention, the wrong internal configuration caused by different directions of a left hand door and a right hand door can be avoided; the problem generation that a door is not closed in place is avoided; a large amount of energy consumption caused by supplying power constantly to the device can be avoided, and dirty shutdown of the fireproof door under the situations such as power cut and the like is also avoided, no additional power supply is needed for the device, hence the communication capability is not influenced, the hand reset function key is arranged on the door closing in place mechanism, the position where the hand reset function key is arranged is far from the door, even if the fireproof door is in an opening state, the hand reset function of the door closer is not influenced.

Description

technical field [0001] The invention relates to the technical field of fire safety equipment, in particular to an electric door closer for a fire door. Background technique [0002] Fire doors are doors used to maintain the fire-resistant integrity of the fire escape and provide a means of escape. . [0003] At present, the existing fire door electric door closers on the market have the following outstanding problems: [0004] 1. The installation of the product is troublesome, and the internal mechanism needs to be reassembled for the left-handed and right-handed doors; [0005] 2. The door opening positioning function is weak, and there is a problem that it cannot be positioned or needs multiple debugging to be correctly positioned; [0006] 3. The equipment needs to be powered all the time, the power loss is large, not energy-saving, and not environmentally friendly (key point); the constant power supply leads to poor bus load capacity, unstable communication, and canno...

AI Technical Summary

Problems solved by technology

[0004] 1. The installation of the product is troublesome, and the internal mechanism needs to be reassembled for the left-handed and right-handed doors;

[0005] 2. The door opening positioning function is weak, and there is a problem that it cannot be positioned or needs multiple debugging to be correctly positioned;

[0006] 3. The equipment needs to be powered all the time, the power loss is large, not energy-saving, and not environmentally friendly (key point); the constant power supply leads to poor bus load capacity, unstable communication, and cannot meet the long-distance stable working requirements;

[0007] 4. The manual start mechanism is on the back of the door, which cannot achieve the purpose of manual start;

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