Pressure applying device of steel pipe for agricultural greenhouse construction

The invention discloses a pressure applying device of a steel pipe for agricultural greenhouse construction. The device comprises a fixing seat, wherein a guide rail is arranged at the front part of the fixing seat; a sliding seat is arranged on the guide rail; a hydraulic cylinder is arranged at the upper part of the fixing seat, and a piston rod is arranged at the lower part of the hydraulic cylinder; the upper end of the piston rod is connected to the lower part of the hydraulic cylinder, and the lower end of the piston rod is provided with a clamping block; a pressure applying seat is arranged on the sliding seat, and a clamping groove in which the clamping block is clamped is arranged at the upper part of the pressure applying seat; a pressure applying end is arranged at the lower part of the pressure applying seat; an assisting seat is arranged on the front surface of the pressure applying seat; a first positioning block and a second positioning block are arranged at the lower part of the assisting seat