Windproof lifting device

Abstract

The invention discloses a windproof lifting device, which comprises a locking bracket, a board, and a base part. Both sides of the locking bracket are symmetrical brackets, and the board is inserted into the bracket. The lower end of the flashboard is provided with a protective device, which is vertically arranged relative to the flashboard and protrudes outward. The protective device extends out of the bracket, and the flashboard can slide up and down relative to the bracket. , the protective device of the flashboard is installed in the assembly base on the base part, and then the second baffle or bar is covered, and the protective device of the flashboard is fixed by the second baffle or bar and fasteners In the assembly base of the base part. The invention realizes the rigid connection with the base part through the design of the inserting plate and its force transmission structure with the help of high-strength fastening bolts, and transmits the wind load to the main force-bearing components of the lifting device, which can effectively resist the uplift of the bracket Force and horizontal sliding force, can effectively prevent the crane from overturning and slipping in the storm state, with a simple force state.

Description

technical field [0001] The invention relates to a lifting gear device with wind protection. Background technique [0002] In modern times, plate-type anchors are widely used. When using plate-type anchors, the crane can be temporarily fixed by turning the lever arm to insert the anchor plate into the anchor seat on the foundation. The anchor is generally manual, and an electric switch can also be used to interlock with the crane to ensure that the crane cannot slide on the track when the anchor works. [0003] When the storm comes, due to various complicated factors, the crane will not only be subjected to horizontal force to make the crane slide along the track direction, but also may have an uplift force at one or some supports, which will cause the crane to overturn. When the traditional crane anchoring board is used to resist the storm, because the board is only inserted vertically downward into the anchor pit and has no rigid connection with the anchor base, it cannot ...

AI Technical Summary

Problems solved by technology

[0003] When the storm comes, due to various complicated factors, the crane will not only be subjected to horizontal force to make the crane slide along the track direction, but also may have an uplift force at one or some supports, which will cause the crane to overturn

When the traditional crane anchoring board is used to resist the storm, because the board is only inserted vertically downward into the anchor pit and has no rigid connection with the anchor base, it cannot resist the pull-up force at the bracket, and it cannot effectively prevent the crane from the overthrow of