Safe crawling ladder

• Main Authors: WU SHAOPING, YAO MINGQIU, TANG SHAOBIN, HE QIANYI, DENG ZHIFENG
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2013
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; LADDERS

The utility model relates to a safe crawling ladder. The safe crawling ladder comprises a fixed ladder and a movable ladder, wherein a bent steel pipe is arranged on the top of the fixed ladder, and the fixed ladder is fixed on a wall body of a building through the bent steel pipe on the top of the fixed ladder; and female grooves are formed in two vertical pipes of the fixed ladder, and male grooves are formed in the movable ladder and are matched with the female grooves to enable the movable ladder to slide up and down along the female grooves of the fixed ladder. Generally, the crawling ladder can be used for maintaining a roof of a top floor of a normal floor; in a use process, the movable ladder of the crawling ladder is put down and is connected to form the integral crawling ladder; and when the crawling ladder is not used, the movable ladder is moved upwards along the female grooves and is locked, so that the crawling of children can be prevented, and accident is avoided.