A safety device for emergency escape from a tunnel shaft

Abstract

The utility model discloses a kind of safety devices for tunnel well emergency escape, relate to tunnel technical field.A kind of safety devices for tunnel well emergency escape, including escape passage main part, honeycomb plate and activated carbon plate, limit component is arranged on escape passage main part, limit component includes four fixed mounting seat and four protective cover, by limit component in reverse rotation screw rod sleeve, make screw rod move along axial direction, again because screw rod is close to the end of limit plate and limit plate outer wall rotation connection, the movement of screw rod will promote limit plate sliding in second limit plate groove, make limit plate and honeycomb plate and the inside of second limit plate groove of activated carbon plate are in contact, honeycomb plate and activated carbon plate can be taken out from boss groove, such disassembly honeycomb plate and activated carbon plate simple and quick, effectively improve the maintenance and overhaul efficiency of honeycomb plate and activated carbon plate, simultaneously avoid staff and need with special tool to disassemble it.

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