High-safety civil defense door
The utility model discloses a high-safety civil air defense door. The utility model belongs to the technical field of civil air defense engineering, the utility model discloses a high-safety civil defense door. The door comprises a door frame mounted on a wall body, the left end of the door frame is...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a high-safety civil air defense door. The utility model belongs to the technical field of civil air defense engineering, the utility model discloses a high-safety civil defense door. The door comprises a door frame mounted on a wall body, the left end of the door frame is rotationally connected with a switch door; handles are fixedly connected to the surfaces of the opening-closing doors; a plurality of movable grooves distributed at intervals are formed in the left side face and the right side face of the switch door. Compression springs are fixedly connected to the inner walls of the movable grooves. Movable rods are fixedly connected to the ends, away from the inner walls of the movable grooves, of the compression springs; the outer end of the movable rod isfixedly connected with two symmetrical limiting rods; balls are fixedly connected to the ends, away from the movable rods, of the limiting rods. The end, away from the limiting rod, of the ball makescontact with the inner wal |
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