Telescopic crowbar for dismantling construction of constructional engineering formwork

The telescopic crowbar comprises a first sleeve of a cylindrical structure, a handle is installed on the upper portion of the first sleeve, an anti-skid pad is arranged on the handle, a second crowbar is arranged in the first sleeve, a second sleeve is arranged at the lower end of the second crowbar, and the second sleeve is connected with the second crowbar. A first pry bar is arranged in the second sleeve, a connecting plate is installed at the bottom end of the first pry bar, a fixing plate is connected to the lower end of the connecting plate, a pry plate is fixed to the bottom of the fixing plate, and the fixing plate and the connecting plate are connected through a bolt. By arranging the first pry bar, the second pry bar, the first sleeve and the second sleeve, the length of the crowbar can be adjusted according to working requirements, the defect that the crowbar is damaged due to the fact that a bayonet lock is prone to being broken when the length of the crowbar is fixed and adjusted through the bayo