The invention discloses a portable gantry hoisting device. The portable gantry hoisting device comprises a main beam, stand column assemblies and a height adjusting assembly, wherein each stand columnassembly comprises a lower support and an upper stand column which is arranged on the lower support and vertically extends upwards; the upper ends of the upper stand columns are connected with the ends of the main beam; the two stand column assemblies support the two ends of the main beam correspondingly; the height adjusting assembly is arranged on the lower supports and connected with the lowerends of the upper stand columns; the height adjusting assembly has a first state and a second state; and the height adjusting assembly operated to be in the first state can drive the upper stand columns to do one-way ascending motion relative to the lower supports in the vertical direction, the height adjusting assembly operated to be in the second state can drive the upper stand columns to do one-way segmented descending motion relative to the lower supports in the vertical direction, and accordingly the height of the main beam is adjusted. According to the portable gantry hoisting device, through switching of the height adjusting assembly between the first state and the second state, rapid ascending and segmented stable descending of the upper stand columns are achieved, and the adjusting stability and the safety coefficient are effectively improved.
本发明公开了一种便捷式龙门起吊装置,其包括主梁、立柱组件和高度调节组件,立柱组件包括下支架和设置于下支架并竖直向上延伸的上立柱,上立柱的上端与主梁的端部连接,两立柱组件分别支撑主梁的两端;高度调节组件设置于下支架并与上立柱的下端连接,高度调节组件具有第一状态和第二状态,操作处于第一状态的高度调节组件能够驱动上立柱相对于下支架沿竖直方向单向上升运动,操作处于第二状态的高度调节组件能够驱动上立柱相对于下支架沿竖直方向单向分段下降运动,从而调节主梁的高度。本发明的一种便捷式龙门起吊装置,通过高度调节组件在第一状态与第二状态之间的切换,实现上立柱的快速上升和分段平稳下降,有效提高调节稳定性和安全系数。
Portable gantry hoisting device
一种便捷式龙门起吊装置
2021-02-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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