The invention provides a lifting mechanism of a passenger boarding ladder, belongs to the technical field of boarding ladders, and solves the technical problems that the adjustability and the reliability of the boarding ladders are poor and the like. The passenger boarding ladder comprises a chassis and a supporting frame which is obliquely arranged upwards, the lower end of the supporting frame is hinged to the chassis, the lifting mechanism comprises a telescopic rod, a first telescopic piece and a second telescopic piece, a first connecting base is hinged to the chassis, a second connecting base is hinged to the lower side of the upper end of the supporting frame, and the first telescopic piece and the telescopic rod are located between the first connecting base and the second connecting base; the telescopic rod comprises a fixed rod and a movable rod, a plurality of ratchets arranged at intervals in the length direction of the movable rod are arranged on one side of the movable rod, the fixed rod is connected with a pawl, one end of the pawl can be embedded into the ratchets, and the second telescopic piece can drive the end, embedded into the ratchets, of the pawl to swing around the other end of the pawl to be separated from the ratchets. The lifting mechanism is stable, reliable, low in cost and high in safety.
本发明提供了一种旅客登机梯的举升机构,属于登机梯技术领域。它解决了登机梯的可调性和可靠性差等技术问题。旅客登机梯包括底盘和倾斜向上设置的支撑架,支撑架的下端铰接在底盘上,本举升机构包括伸缩杆、伸缩件一和伸缩件二,底盘上铰接有连接座一,支撑架上端下侧铰接有连接座二,伸缩件一和伸缩杆位于连接座一和连接座二之间;伸缩杆包括固定杆和移动杆,移动杆的一侧开有数个沿其长度方向间隔设置的棘齿,固定杆上连接有一端能嵌入棘齿内的棘爪且伸缩件二能驱动棘爪嵌入棘齿内的一端绕其另一端摆动至脱离该棘齿。本发明的举升机构稳定可靠,成本低,安全性高。
Lifting mechanism of passenger boarding ladder
一种旅客登机梯的举升机构
2021-09-03
Patent
Electronic Resource
Chinese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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