Protector is prevented down in cotton trunk

The utility model discloses a protector is prevented down in cotton trunk, including the bar base, fixed surface is connected with the ascending a pair of automatically controlled telescoping mast offlexible end on the bar base, and is a pair of automatically controlled telescoping mast's flexible end fixedly connected with bar loading board, fixed surface is connected with strip -like sliding rail on the bar loading board, strip -like sliding rail is last to be equipped with a pair of electronically -controlled trolley, every the equal fixedly connected with bar fender rod of electronically-controlled trolley upper surface, every circular through -hole, every have all been processed one number to bar fender rod upper surface right -hand member bar fender rod upper surface right -hand member all is equipped with bar link pole, every bar link pole upper surface left end all processed with two numbers circular through -holes of a circular through -hole assorted, all inlay in every adjacent circular through -hol