A multi-size wind pipe shearing device for a motor train unit
By designing a multi-size duct cutter for high-speed trains, and utilizing a combination of a fixed base and a clamp for duct cutting, the problem of uneven cuts in high-speed train duct cutting was solved, achieving efficient and convenient duct cutting while ensuring cutting quality and safety.
CN224543267UActive Publication Date: 2026-07-24CHINA RAILWAY WUHAN BUREAU GRP CO LTD WUHAN EMU
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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
- 2025-07-18
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
Existing duct cutting technology in high-speed trains has problems such as uneven cuts and burrs, which leads to the risk of air leakage and affects driving safety and passenger comfort.
Method used
Design a multi-size duct cutter for high-speed trains. It adopts a fixed base and fixed clamp structure. The blade moves in the lower cutting groove to squeeze and cut. Combined with the limiting groove and guide groove, it ensures that the cut is flat and the blade can be easily replaced.
Benefits of technology
It achieves efficient duct cutting, avoiding slanted cuts, burrs, and edge deformation, ensuring cutting quality. It is suitable for ducts of various sizes, is simple and portable to operate, and is suitable for operation in confined spaces.
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Smart Images
Figure CN224543267U_ABST
Abstract
The utility model discloses a kind of multiple sizes of wind pipe cutting device of motor train unit, comprising: fixed base and the fixed clamp being set on the fixed base;The fixed clamp is rotatably connected between the fixed base, the fixed clamp is equipped with blade, and the fixed base is equipped with lower knife groove with blade position corresponding place;The blade is equipped with multiple, and it is cutting end for sharp end downward V-shaped, sharp end both sides are opened with blade edge, multiple blades are closely arranged along the length direction of fixed clamp, form blade array. By pressing fixed clamp, make fixed clamp and fixed base fold, at this time blade moves into lower knife groove, wind pipe is extruded and cut, realize the efficient cutting of wind pipe. Wind pipe is positioned by fixed base, and lower knife groove is reserved for blade to provide lower knife position, smoothly complete cutting to wind pipe, and fixed base is wind pipe on both sides of blade and provides limit, ensure that the stress of both sides is uniform, ensure the quality of wind pipe cutting.
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