Building evacuation door opening device

Abstract

The invention relates to a building evacuation door opening device and relates to the technical field of safety doors. The building evacuation door opening device comprises a door frame, a door, an air cylinder, a push rod, a connecting rod, a side plate, fixed pulleys, a steel wire rope and a heavy object. The door frame is hinged to the door, the air cylinder is mounted on the door frame, and the air cylinder is in driving connection with the push rod. The push rod is hinged to the connecting rod, one end of the connecting rod is connected with the door, and the side plate is connected to one side of the door frame and fixedly provided with the three fixed pulleys which are arranged in a triangle shape. The steel wire rope winds across the three fixed pulleys, the heavy object is fixed to one end of the steel wire rope, and the other end of the steel wire rope and the door are fixed. According to the building evacuation door opening device, a power source is automatically cut off ina disaster by a firefighting system, and meanwhile the door is automatically opened; the door is opened in time, safety is good, and the door can also be automatically opened when people pass throughthe door; and the building evacuation door opening device has the advantages that the structure is simple, arrangement is reasonable, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of safety doors, in particular to a device for opening a building evacuation door. Background technique [0002] The evacuation door is a door that opens quickly at the emergency refuge exit of the building. The escape passages of large underground squares will be equipped with safety doors, which are usually closed, strong, and well sealed. Once a danger occurs underground, people can open the safety door from the inside to escape. [0003] With the acceleration of urbanization, the number of high-rise buildings, cinemas, venues, shopping malls, schools, etc. is increasing. In these densely populated places, in the event of security, fire, emergency and other safety accidents, the fire evacuation door can be quickly opened to quickly evacuate people. , Avoiding casualties has become the top priority of safety production. [0004] The existing evacuation door is manually pulled down by the wrench, and the ...

AI Technical Summary

Problems solved by technology

[0004] The existing evacuation door is manually pulled down by the wrench, and the other end of the wrench moves up, so that the button rod moves up, thereby driving the connecting rod to rotate clockwise, thereby driving the pull rod head to move to the left, and the pull rod head is pulled to the left by the pull rod At the same time, it drives the gear shaft and the lock tongue to move to the left, so that the lock tongue is released from the lock hole, unfixed, and the door is opened. This manual structure cannot be opened quickly in case of a major accident, and requires a certain reaction time. Time will cause serious consequences, and safety cannot be guaranteed

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