Elevator guide rail replacement tool

By installing pulley blocks and rope hoisting systems on the old elevator guide rails, the safety risks and low efficiency problems in elevator guide rail replacement construction were solved, achieving efficient, safe, and low-cost guide rail replacement.

CN224279443UActive Publication Date: 2026-05-26SHIJIAZHUANG TEDA ELEVATOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIJIAZHUANG TEDA ELEVATOR CO LTD
Filing Date
2025-08-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing elevator guide rail replacement methods suffer from high safety risks, low efficiency, high labor intensity, and high costs, especially when performing high-altitude hoisting, making it difficult to achieve precise alignment and rapid lifting.

Method used

An elevator guide rail replacement tool is used, which uses the old elevator guide rail that has not been removed as a lifting point. The tool is lifted without power by means of pulley blocks and ropes. Combined with the positioning column, mounting frame and anti-detachment back plate, the tool is ensured to be firmly installed on the old elevator guide rail, so as to realize the synchronous lifting and precise positioning of the old and new elevator guide rails.

Benefits of technology

It improved construction efficiency, reduced labor intensity and safety risks, saved manpower and equipment costs, and achieved efficient and safe elevator guide rail replacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224279443U_ABST
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Abstract

This utility model discloses an elevator guide rail replacement tool, including a fixing mechanism, a pulley block mounted on the fixing mechanism, and a rope wound around the pulley block. Both ends of the rope are free ends with fixed lifting devices for hooking onto the new / old elevator guide rail. The fixing mechanism has an anti-fall-off component for fixing the new guide rail to the existing elevator guide rail. This utility model abandons the traditional electric hoist lifting system, revolutionarily using the bolt holes at the ends of the existing elevator guide rail as lifting points to build a temporary lifting system. This reduces construction costs, eliminates safety risks, eliminates the need for support personnel, saves electricity, and reduces the consumption of wire rope, lubricating oil, etc. Simultaneously, this utility model applies the principle of gravity balance to form a non-powered lifting system, significantly reducing labor intensity, improving construction accuracy, increasing construction efficiency, and exhibiting low operating noise, low construction costs, and energy conservation and environmental protection.
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