Folding type multi-stage telescopic fire ladder

By designing a foldable multi-stage telescopic fire ladder, the design utilizes hydraulic telescopic cylinders and sliding sleeve rods to achieve height adjustment and climbing path adaptation, solving the problems of rescue efficiency and safety of fire ladders in complex environments, and providing ample operating space and protection for trapped personnel.

CN224452696UActive Publication Date: 2026-07-03YUANMOU COUNTY FIRE RESCUE BRIGADE (YUANMOU COUNTY FIRE RESCUE BUREAU)
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Patent Information

Application Number
CN202521657137.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2026-07-03
Estimated Expiration
2035-08-05

AI Technical Summary

Technical Problem

Existing fire ladders lack autonomy in ensuring the safety of firefighters and protecting trapped personnel during rescue operations, making it impossible to conduct efficient rescues in complex environments.

Method used

The fire ladder adopts a foldable multi-stage telescopic design. Through the HSL-50D double-stage hydraulic telescopic cylinder and sliding sleeve design, the height of the top platform can be adjusted and the climbing path can be flexibly adapted. It is equipped with guardrails to ensure the safety of the operating space and trapped personnel.

Benefits of technology

It enables efficient rescue using fire ladders in complex environments, improves the operating space for firefighters and the safety of trapped personnel, reduces rescue time and accident risks, and enhances the safety and convenience of the rescue process.

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Abstract

The utility model relates to the technical field of fire rescue, and discloses a folding type multi-stage telescopic fire ladder which comprises a bottom platform, a plurality of sets of walking wheels are fixedly installed at the bottom end of the bottom platform, a telescopic rod is fixedly installed on one side of the top end of the bottom platform, and a sleeve rod is fixedly installed on the other side, away from the telescopic rod, of the top end of the bottom platform. A top platform is fixedly installed at the top end of the sleeve rod, two first connecting blocks are oppositely and fixedly installed on one side of the bottom end of the top platform, a first extension ladder is rotatably installed in the two first connecting blocks, two sliding ways are oppositely and fixedly installed on the bottom side of the first extension ladder, and a sliding block is slidably installed in each sliding way. The two sets of sliding blocks are fixedly connected through a second extension ladder, two sets of second connecting blocks are fixedly installed on the upper surface of the bottom platform, the height of the top platform can be accurately adjusted, the height requirements of different rescue scenes are met, meanwhile, sufficient operation space is provided for firemen, and the safety of the rescue process is remarkably improved.
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