A pressure-resistant device for replacing a hydraulic cylinder of a turnover door
By using the upper clamp assembly, lower clamp assembly, and synchronous gantry-type pressure-bearing frame, and taking the connection part of the old hydraulic cylinder as a reference, the problems of force balance and space limitation in the replacement of hydraulic cylinders for flap doors were solved, and the error-free installation of the new cylinder and the simplified disassembly process were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN JIALINGJIANG CANGXI AVIONICS DEV CO LTD
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to maintain the force balance of the flap door when replacing the hydraulic cylinder, which makes it difficult to install the new cylinder. Furthermore, the adjustment mechanism of the support device is prone to locking under extreme working conditions, and the limited space makes it difficult to erect the support frame.
The system employs an upper clamp assembly, a lower clamp assembly, and a synchronous gantry-type pressure-bearing frame. Using the upper and lower connecting parts of the old hydraulic cylinder as a reference, and through the pressure-bearing screw and adaptive support assembly, it achieves bypass bearing and synchronous lifting of the flap door load, ensuring the coaxial installation of the new cylinder.
It enables error-free misalignment installation of new hydraulic cylinders under extreme working conditions, avoiding the locking of support devices and space limitations, and simplifying the process of removing old hydraulic cylinders and installing new ones.
Smart Images

Figure CN122401313A_ABST