Universal docking tool for launch vehicle tank bottom frame
By designing a sliding connection docking fixture for the bottom frame of a launch vehicle propellant tank, the problems of installation accuracy and efficiency in docking the bottom of the propellant tank with the engine frame of different models of launch vehicles were solved, and a fast and accurate docking process was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING LANDSPACETECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, the docking of the launch vehicle's propellant tank bottom with the engine frame needs to be adapted to the dimensions of different engine frame models, making it difficult to guarantee installation accuracy and efficiency.
Design a docking fixture comprising an outer ring, an inner ring, an outer column, an inner ring frame, an outer column, an inner column, and a connecting frame. Through slidably connected radial and axial supports, achieve rapid docking between the frame and the bottom of the storage tank, improving installation accuracy and efficiency.
It enables rapid docking of the propellant tank bottoms of different types of launch vehicles with the engine frame, improving installation accuracy and efficiency, adapting to different frame sizes, being easy to operate and highly accurate in positioning, and being reusable.
Smart Images

Figure CN224359657U_ABST