▎ 摘　　要

NOVELTY - The utility model claims a foundation pit support with good safety performance, comprising a supporting plate, the left end of the top part of the supporting plate is connected with a protective plate through a fastening screw, and the outer surface of the protective plate is provided with a protective layer, at the same time, the protective layer comprises a graphene fibre layer, a titanium alloy coating and a polyvinyl chloride coating. The utility model is provided with a second connecting rod, an adjusting rod, a first connecting rod, a screw sleeve, a screw rod, a mounting seat and a rocking handle, the purpose of supporting the foundation pit slope with different inclinations is realized, the utility model is provided with a graphene fibre layer, protective layer of titanium alloy coating and polyvinyl chloride coating, wherein the polyvinyl chloride coating can effectively improve the corrosion resistance of the whole protective plate; the titanium alloy coating can improve the wear resistance of the whole protective plate after the polyvinyl chloride coating is damaged, the graphene fibre layer can improve the strength of the whole protective plate, so as to further improve the service life of the protective plate, by the cooperation of the above structure, effectively improving the safety of the whole device.