A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A dual-purpose insulated ladder
The invention relates to a dual-purpose insulated ladder. The dual-purpose insulated ladder comprises a ladder body. Armrest frames bent into triangle shapes are vertically and symmetrically disposed at left and right sides of the top of the ladder body. Landing legs I extend symmetrically and slantingly downwards from one ends of the bottom edges of the armrest frames, and the other ends of the armrest frames are rotationally connected to a rotation shaft. Two ends of the rotation shaft are connected to landing legs II. The landing legs II are provided with radial limiting bolt holes. The bottom edges of the two armrest frames are provided with locking plates inclined upwards and downwards. The locking plates are provided with limiting bolts that can be inserted into the limiting bolt holes in the landing legs II. The bottom edges of the armrest frames are connected by a cross supporting rod, the bevel edges of the armrest frames are connected by a cross supporting rod, the two landing legs I are connected by cross supporting rods, and the landing legs II are connected by a cross supporting rod. The beneficial effects of the dual-purpose insulated ladder are that the dual-purpose insulated ladder can be used as a ladder when climbing is needed, and can be used as a chair in normal times, thus saving space and largely increasing the utilization rate; and using of the dual-purpose insulated ladder is convenient and safe.
A dual-purpose insulated ladder
The invention relates to a dual-purpose insulated ladder. The dual-purpose insulated ladder comprises a ladder body. Armrest frames bent into triangle shapes are vertically and symmetrically disposed at left and right sides of the top of the ladder body. Landing legs I extend symmetrically and slantingly downwards from one ends of the bottom edges of the armrest frames, and the other ends of the armrest frames are rotationally connected to a rotation shaft. Two ends of the rotation shaft are connected to landing legs II. The landing legs II are provided with radial limiting bolt holes. The bottom edges of the two armrest frames are provided with locking plates inclined upwards and downwards. The locking plates are provided with limiting bolts that can be inserted into the limiting bolt holes in the landing legs II. The bottom edges of the armrest frames are connected by a cross supporting rod, the bevel edges of the armrest frames are connected by a cross supporting rod, the two landing legs I are connected by cross supporting rods, and the landing legs II are connected by a cross supporting rod. The beneficial effects of the dual-purpose insulated ladder are that the dual-purpose insulated ladder can be used as a ladder when climbing is needed, and can be used as a chair in normal times, thus saving space and largely increasing the utilization rate; and using of the dual-purpose insulated ladder is convenient and safe.
A dual-purpose insulated ladder
ZHAO JINCHAO (author) / YANG FAN (author) / LIU JIATONG (author) / PAN XIAONAN (author) / ZHANG JUN (author) / ZHANG CHUNGANG (author)
2015-08-12
Patent
Electronic Resource
English