Trash holding and clearing mechanism

The utility model relates to a trash holding and clearing mechanism in the technical field of environmental protection equipment. The trash holding and clearing mechanism comprises a barrier arranged in a river channel to hold trash; one upstream side of the barrier is provided with a tooth rake; the tooth rake is connected onto a straight-line motion mechanism of which the motion direction is consistent with the width direction of the barrier; the height position of the tooth rake corresponds to that of the trash held by the barrier; one side of the river channel is provided with a truss; and the truss is provided with a lifting mechanism used for hoisting the trash. When the trash accumulated at the barrier is more enough, the tooth rake is pulled by the straight-line motion mechanism to move towards one side of the river channel; the trash can be driven by the tooth rake to be accumulated towards one side of the river channel; then, the trash is hoisted through the lifting mechanism, is conveyed to a trash clearing truck and is carried away, and therefore, the goal that the trash of the river channel is rapidly cleared is achieved. The mechanism can be used for holding the trash of the river channel and rapidly and efficiently cleaning the trash of the river channel and can be applied to clearing the trash of various river channels.