Hook ladder safety locking device

By designing a locking device with a return spring and a sliding ball structure on the hook ladder, the problem of the hook ladder falling off due to vibration is solved, achieving stable attachment and convenient replacement, and improving safety.

CN224550005UActive Publication Date: 2026-07-24赵云杰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
赵云杰
Filing Date
2025-08-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing hook ladders are prone to falling off due to vibration when hung on poles, which is not very safe.

Method used

A safety locking device for a hook ladder was designed, including an installation groove and a locking rod inside the ladder. By using a return spring and a sliding ball structure, and through the cooperation of the cable and the locking rod, it prevents the ladder from falling off due to vibration. The design of the enclosed plate and the limiting rod ensures stable attachment.

Benefits of technology

It effectively prevents the hook ladder from falling off due to vibration, improves the stability and safety of the connection, and facilitates the disassembly and replacement of the cable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of hook ladder safety locking devices, it includes: ladder and hook, two installation grooves are set in ladder inside, two The inside of installation groove is rotatably connected lock bar, reset spring is arranged between two The lock bar side surface and installation groove inner wall, the lock bar side surface is set with sliding slot, the sliding ball is slidably connected in the sliding slot, the sliding ball side surface is fixedly connected with cable, the sliding slot is set with closure plate inside, the cable is penetrated through closure plate, two The inside surface of hook is set with two sliding slot, pull rod is slidably connected between two The sliding slot of proximity, two The inside of pull rod one end is slidably connected with limit slide bar, the limit slide bar upper and lower end is fixedly connected with sliding slot inner wall, the upper end of cable is fixedly connected with pull rod lower surface, can prevent being vibrated and falling off, increase the stability of device hanging, facilitate to improve device safety and staff to cable dismount replacement.
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