Portable manual lifting construction steel ladder

• Main Authors: FU ZHENTING, SHI YIJIE, CHEN HAI, CHEN TAO, ZHENG LIGUO
• Format: Patent
• Language: Chinese; English
• Published: 14.05.2024
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; LADDERS

The utility model discloses a portable manual lifting construction steel ladder. Comprising supporting rods, foot bars, a fixing frame and a hanging frame. Two sets of fixing frames of a ring sleeve structure are arranged on the two supporting rods in a sliding fit mode, two sets of hanging frames are jointly welded to the two sets of fixing frames, an embedded groove is formed in the outer side of each supporting rod to form an embedded groove, and a plurality of trapezoidal buckles are arranged in the embedded grooves in a linear array mode in the long diameter direction of the supporting rods. The trapezoidal buckle is of a stretching block structure with the longitudinal section being a right trapezoid or a right triangle, and the right trapezoid inclined face or the right triangle inclined face of the trapezoidal buckle is arranged upwards. Two sides of one group of fixing frames are respectively provided with a slide fastener mechanism capable of fixing the relative positions of the supporting rods and