A convenient EMU (electric multiple unit) sliding plug door maintenance test device

By using an electric gun battery and a dedicated plug for power supply, combined with a telescopic box and a folding and rotating mechanism, the problems of heavy portable power equipment and incorrect wiring have been solved, improving the convenience and safety of maintenance of the EMU sliding doors.

CN224365783UActive Publication Date: 2026-06-16CHINA RAILWAY WUHAN BUREAU GRP CO LTD WUHAN EMU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY WUHAN BUREAU GRP CO LTD WUHAN EMU
Filing Date
2025-04-28
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing portable power supply equipment is heavy, making it inconvenient to carry and move, and the terminal block wiring method is prone to incorrect wiring, affecting the flexibility and safety of maintenance.

Method used

The experimental fixture uses an electric gun battery as its energy source, is powered by a dedicated plug, and is transported via a telescopic box to avoid the risk of incorrect wiring. A folding and rotating mechanism is designed to improve convenience.

Benefits of technology

It provides convenient power supply, avoids equipment burnout, saves manpower, is suitable for different specifications of experimental tooling, occupies little space, and is easy to clean.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224365783U_ABST
    Figure CN224365783U_ABST
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Abstract

The utility model discloses a convenient motor train unit plug door overhauling test device belongs to motor train unit overhauling field, including placing box, first frame and second frame, and experimental frock and electric gun battery are placed in the placing box, and the placing box is located between first frame and second frame, and the folding mechanism for reducing the space between first frame and second frame is arranged between first frame and second frame, and the bottom of first frame and second frame is provided with rotating mechanism. The utility model uses the electric gun battery of common operation as energy source, and the convenience is carried, and adopts the special plug, and the single door power supply or the single part of door test is powered, and the risk of equipment burning loss caused by wrong connection is avoided from the source, and the telescopic box is used to transfer the whole experimental frock and electric gun battery, and the convenience in the overhaul process is improved greatly, and the manpower is saved.
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