Progressive elevator safety tongs

By adjusting the spacing of the guide seat and using a hex wrench to unlock the screw, the problem that the elevator safety pliers cannot adapt to the width of different guide rails is solved, and the wide application and stable use of safety pliers in offshore engineering is achieved.

CN120229629AActive Publication Date: 2025-07-01GUANGDONG HUAHUI ELEVATOR PARTS CO LTD
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Patent Information

Application Number
CN202510720024.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-07-01
Estimated Expiration
2045-05-30

AI Technical Summary

Technical Problem

The existing elevator safety pliers cannot flexibly adapt to guide rails of different widths, which limits their application in offshore engineering.

Method used

By adjusting the spacing of the guide seat and changing the initial spacing of the clamping blocks, the safety pliers can adapt to guide rails of different widths, and a hex wrench is used to realize the self-unlocking and automatic locking of the screw, improving the convenience and stability of adjustment.

Benefits of technology

It realizes the flexible adaptation of safety clamps on guide rails of different widths, expands the scope of use, is convenient and fast to adjust, and improves the stability of use and operation.

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Abstract

The invention relates to the technical field of elevator safety tongs, in particular to progressive elevator safety tongs. Comprising a side plate, a top plate and a bottom plate, two guide seats are arranged on the inner sides of the two side plates; the faces, close to each other, of the two guide bases are slidably connected with wedge-shaped clamping blocks through guide grooves. A bracket with a bracket groove is arranged on the rear side of the guide seat; a supporting pin connected with the clamping block penetrates through the two supporting grooves front and back; the upper end of the bracket upwards penetrates through the top plate and is provided with a pull rod; the edges, away from each other, of the two guide bases are backwards provided with adjusting lugs. According to the safety tongs, by adjusting the distance between the two guide seats, the initial distance between the two clamping blocks is changed, so that the installation requirements of guide rails with different widths can be met under the condition that a certain safety gap is kept between the safety tongs and the guide rails, the use range of the safety tongs is widened, and the adjusting mode is convenient and rapid.
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