An electric hoist with a fall protection structure
By designing protective devices on electric hoists, utilizing the screw nut structure and the contact between rollers and the track, the risk of electric hoists falling is solved, improving the stability and safety of the equipment and facilitating maintenance.
CN224450072UActive Publication Date: 2026-07-03HENAN AOLAIDA HOISTING MACHINERY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN AOLAIDA HOISTING MACHINERY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
The fall arrestor devices of existing electric hoists are usually fixed and not adapted to different equipment, which leads to the risk of electric hoists falling during use.
Method used
A protective device comprising a track, an electric trolley, and the hoist body was designed. It adopts a screw and nut structure, and the spacing of the positioning plates is adjusted synchronously by the first and second screws. Combined with the contact between the rollers and the track, it provides double protection to ensure stability and safety.
Benefits of technology
It achieves stability and safety during the operation of electric hoists, reduces the risk of falls, and the device is easy to install and maintain regularly.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224450072U_ABST
Abstract
An electric hoist with a fall-prevention structure effectively solves the problem of the risk of electric hoist falling. It includes a track, an electric trolley, and a hoist body. The hoist body is equipped with protective devices located on the front and rear sides of the electric trolley. Each protective device includes a frame, which is fixedly connected to the hoist body. A rotating shaft is mounted on the frame, and a first screw and a second screw with opposite thread directions are coaxially fixed to the rotating shaft. The first screw is threadedly connected to a first nut, and a first frame is fixed to the upper end of the first nut. A first roller in contact with the track is rotatably connected to the lower end of a first positioning plate. Multiple third screws are fixed to the lower end of the first frame, inserting vertically into the interior of the first frame. A second screw is threadedly connected to a second nut, and a second frame is fixed to the upper end of the second nut. A second roller in contact with the track is rotatably connected to the lower end of a second positioning plate. Multiple fourth screws are fixed to the lower end of the second frame, inserting vertically into the interior of the second frame.
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