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.

CN224359657UActive Publication Date: 2026-06-16BEIJING LANDSPACETECH CO LTD

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

Technical Problem

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.

Method used

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.

🎯Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224359657U_ABST
    Figure CN224359657U_ABST
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Abstract

The utility model provides a kind of general type docking tool of rocket storage tank box bottom rack, comprising: outer ring frame, small end frame connecting component and connecting frame;Wherein, outer ring frame is annular, for with storage tank rear short shell docking;Small end frame connecting component is set to the inside of outer ring frame, and small end frame connecting component is used to with rack small end frame docking;Connecting frame includes multiple radial supports, and each radial support is set along the radial direction of outer ring frame;Radial support at least includes first radial support and second radial support;Second radial support is set in first radial support, and second radial support is slidably set relative to first radial support, to adjust the overall length of radial support;The end of second radial support that stretches out first radial support is used to connect outer ring frame;First radial support is used to connect small end frame connecting component.The docking tool can adapt to the docking requirement of storage tank box bottom and rack of different sizes, realize the quick docking of rack and storage tank box bottom.
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