A telescopic folding portable hanging ladder comprises a folding body, pedals, a crank arm, a hanging structure and a supporting rod, the folding body is composed of four telescopic round pipes which are nested with one another and can stretch out and draw back, and a pair of pedals is arranged at the bottom of each telescopic round pipe; a rotatable crank arm is connected to the portion, located at the top of the folding body, of the telescopic round pipe, a positioning pin used for fixing the hanging ladder to a cabin frame is arranged on the crank arm, a hanging structure is arranged at the tail end of the crank arm, and when the hanging ladder is placed to the outer side of a cabin, the hanging structure can be clamped to the inner side of the cabin frame, so that the hanging ladder is firmly hooked. Meanwhile, two supporting rods which extend out in the radial direction and form an acute angle are arranged on the telescopic round pipe located in the middle of the folding body, and the supporting rods are supported on a reinforcing beam on the lower side of the cabin section fuselage after being unfolded, so that the situation that the hanging ladder is attached to the fuselage due to torque when stressed, and people cannot climb is avoided; the invention effectively solves the problem that no matched boarding ladder is arranged in a parking airport, and inconvenience is brought to aircrew in and out of a cabin.
可伸缩折叠便携式挂梯,包括折叠体、脚踏、曲臂、挂接结构及撑杆,其中,所述折叠体由四段相互嵌套且可伸缩的伸缩圆管组成,并在每段伸缩圆管底部设置有一对脚踏;位于折叠体顶部的伸缩圆管上连接有可转动的曲臂,所述曲臂上设置有用于将挂梯固定在座舱边框上的定位销,所述曲臂末端设置有挂接结构,用于放置挂梯至座舱外侧时,挂接结构可卡在座舱边框内侧,使挂梯勾挂牢固;同时在位于折叠体中部的伸缩圆管上设置有两根沿径向伸出并成锐角的撑杆,撑杆张开后撑在座舱段机身下侧的加强梁处,使挂梯在受力时不会因转矩贴在机身上导致人员无法攀爬;本发明有效解决驻停机场无配套的登机梯,将会给空勤出入座舱带来不便的问题。
Telescopic folding portable hanging ladder
可伸缩折叠便携式挂梯
2023-04-18
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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