Tunnel protective door structure with electromagnetic door stoppers

• Main Authors: YIN QIN, QIU SHAOFENG, SHI MINGHONG, ZHOU MINGXIANG, WANG XIAOCEN, ZHANG HAO, GENG MING, CHEN XIAO, LIU HUI, ZHANG JUNLING
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2019
• Subjects: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS; EARTH DRILLING; FIXED CONSTRUCTIONS; KEYS; LOCKS; MINING; SAFES; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; WINDOW OR DOOR FITTINGS

The invention discloses a tunnel protective door structure with electromagnetic door stoppers, and belongs to the technical field of application of tunnel protective doors. The multiple magnetic doorstoppers are arranged on a door frame with the L-shaped cross section at intervals correspondingly, after a tunnel protective door is closed correspondingly, a door body of the protective door can abut against the magnetic attraction surfaces of the magnetic door stoppers correspondingly, the door body of the protective door is attracted tightly by the multiple magnetic door stoppers, and thus a unified force bearing body can be formed by the protective door and the door frame. The tunnel protective door structure is simple in structure and easy and convenient to arrange, the control accuracyis high, the protective door locked in place and the door frame can be attracted tightly by the multiple magnetic door stoppers, thus double-locking of the protective door is achieved, the unified force bearing body can be for