Cableway inclined drift anti-roping falling protection device for coal mine

By using a mechanical linkage structure of a movable rod, hinge shaft, and return spring, combined with nylon material and automatic reset function, the problem of poor reliability of existing anti-rope-dropping devices for coal mine cable cars in underground environments is solved, achieving high reliability and low maintenance cost anti-rope-dropping protection.

CN224465849UActive Publication Date: 2026-07-07KAILUAN ENERGY CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KAILUAN ENERGY CHEM
Filing Date
2025-07-21
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing anti-rope-fall protection devices for coal mine cable cars have poor reliability in harsh underground environments, are prone to malfunctions or failures, and are difficult to reset, leading to protection failure and high maintenance costs.

Method used

It adopts a mechanical linkage structure of movable rod, hinge shaft and return spring. The movable rod is arranged vertically to distinguish between normal swing of wire rope and rope drop force. Combined with the wear and corrosion resistance of nylon material, automatic reset is achieved by return spring. With the help of deviation sensor, it can achieve fast response and protection.

Benefits of technology

It achieves highly reliable and low-maintenance anti-rope-drop protection, reduces the rate of malfunction, adapts to harsh underground environments, and provides a fast-response and safe and reliable protection solution.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of cable car protection devices, specifically a cable car anti-rope-drop protection device for inclined shafts in coal mines. It includes a rope sheave support, a rope support sheave, a mounting base, and a deviation sensor. The rope support sheave is mounted on the rope sheave support, and the deviation sensor is mounted on the mounting base. It also includes a movable rod and a hinge shaft. The probe end of the deviation sensor has a connecting groove, and one end of the movable rod has a connecting block inserted into the connecting groove. The hinge shaft passes through the connecting groove and connects to the connecting block, forming a hinged fit. A return spring is sleeved on the hinge shaft, with one end fixed to the connecting block and the other end fixed to the inner wall of the connecting groove. The movable rod is located directly below the cable car wire rope and is arranged perpendicular to it. This utility model achieves high reliability and low maintenance cost anti-rope-drop protection through the mechanical linkage structure of the movable rod, hinge shaft, and return spring. The vertically arranged movable rod can accurately distinguish between normal wire rope swing and rope drop, effectively avoiding false triggering.
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