Underground automatic door device

Underground automatic door device

The underground automatic door device comprises a door frame and a door body located in the door frame, the door body is rotationally connected with the ground through a rotating shaft, the underground automatic door device further comprises a door handle installed on the back face of the door body,...

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Hauptverfasser: XU LI, ZHANG XINGYUAN, MA XIAOGUANG, LI XU, ZHANG YONG, LI ZHENSEN, SUN NINGJIE, ZHANG QIANG, WANG YANTAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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creator XU LI
ZHANG XINGYUAN
MA XIAOGUANG
LI XU
ZHANG YONG
LI ZHENSEN
SUN NINGJIE
ZHANG QIANG
WANG YANTAO
description The underground automatic door device comprises a door frame and a door body located in the door frame, the door body is rotationally connected with the ground through a rotating shaft, the underground automatic door device further comprises a door handle installed on the back face of the door body, and the door handle is a cavity with an opening; a first connecting rod perpendicular to the plane where the door frame is located is fixedly connected to the door above the door handle, the free end of the first connecting rod is connected with a fixed pulley, one end of a pull wire is connected with the door frame, and the other end of the pull wire bypasses the fixed pulley to be connected with a load. And the load can move up and down in the cavity. The device is simple in structure, practical and suitable for being installed on underground dustproof doors, air doors and other places. When a person passes, the gravity of a load is overcome to do work, and the door is opened; after the person passes, the load f
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
title Underground automatic door device
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