Door controller of a building dregs vehicle

The invention relates to a door controller, in particular to a door controller of a building dregs vehicle. Technical Problem: Provide a door controller which can quickly and conveniently open the door and dump the dregs out, and is safe for building dregs vehicles. A technical scheme is as follow: that door controller of the build dregs vehicle comprises a hook, a roller, a pulling rope, a control mechanism, a box body, a bearing, a rotating shaft, a cam, a winding wheel, a first spring, a first guide rod, a baffle plate, a second guide rod and the like; The right part of the vehicle frame isprovided with a hanging hole, the hanging hole is provided with a hook, the left side of the bottom of the vehicle compartment is articulated with the left side of the top of the vehicle frame, the upper part of the vehicle frame is connected with the vehicle compartment, and the right lower part of the front side of the vehicle compartment is rotatably connected with a roller. The invention lifts the right part of the c