The invention discloses a movable landing leg of a small tower crane pulling-up trailer. The movable landing leg comprises a trailer main body, two landing leg cross beams, first landing legs, and second landing legs; the tail part of the trailer main body is fixedly connected with the two parallel landing leg cross beams; the two landing leg cross beams are stretched to the back part of the trailer main body along horizontal direction; each pair of the first landing leg and the second landing leg is arranged on the end part of a corresponding landing leg cross beam, and the first landing legs and the second landing legs can be swung in vertical planes; the opposite sides of a first landing leg and a corresponding second landing leg are provided with staggered ear plates respectively, and the staggered parts of each pair of the ear plates are provided with pin holes respectively; and each pair of pin holes are penetrated by a pinned shaft when the pin holes are overlapped. The movable landing leg is capable of realizing more convenient installation and disassembling, reducing workload of installation, disassembling, and transportation of tower cranes greatly, increasing working efficiency of the tower cranes under limited construction field and transportation road conditions, and reducing requirements on additional auxiliary installation equipment greatly.
Movable landing leg of small tower crane pulling-up trailer
2016-01-13
Patent
Electronic Resource
English