Sliding type roof manhole cover plate and handrail linkage device and working method

• Main Authors: DU HUANLONG, SU HANG, WANG TAO, SU ZHIFU, ZHAO GUANG, BAI XIAOYU
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: ACCESSORIES THEREFOR; BUILDING; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; GUTTERS; HANDCUFFS; KEYS; LADDERS; LOCKS; ROOF COVERINGS; ROOF-WORKING TOOLS; SAFES; SKY-LIGHTS; WINDOW OR DOOR FITTINGS

The invention discloses a sliding type roof manhole cover plate and handrail linkage device and a working method, solves the problem that a lifting type cover plate is time-consuming and labor-consuming to lift in the prior art, and has the beneficial effects of being convenient to operate and saving construction space. Comprising a cover plate which can slide relative to a manhole in a roof. The handrail comprises a handrail body, the two ends of the handrail body are each provided with an insertion section, the handrail body is connected with the cover plate, a plurality of open grooves are longitudinally formed in one side of each insertion section, and every two adjacent open grooves are spaced by a set distance; the barrel is fixed to the staircase, a concave part is arranged in the barrel, one end of the insertion section is inserted into the concave part of the barrel, a height adjusting assembly is arranged at the top end of the barrel and provided with an elastic spring bolt, the elastic spring bolt