Simple screw-driven glue gun

The utility model discloses a simple screw-driven gluing gun which comprises a pipe body, a cover body and a bag body are in threaded connection with the upper end of the pipe body, a discharging pipe is arranged in the pipe body and at the rear end of the bag body, and a through hole penetrates through the upper end of the discharging pipe; the discharging head is detachably arranged at the end part of the discharging pipe; the bottom plate is detachably arranged at the bottom end of the pipe body, and the bottom plate is separated into two symmetrical parts after being detached; the screw rod is in threaded connection with the central part of the bottom plate, the end part of the screw rod is rotationally connected with a piston plate, and the sealing cover is detachably arranged at the end part of the discharging pipe. The device has the beneficial effects that the discharging head can be detached and washed, the discharging head is prevented from being blocked, the discharging pipe is sealed through the s