Drainage ditch structure of gravel stock bin of concrete mixing plant

The utility model belongs to the technical field of drainage ditches, and discloses a drainage ditch structure of a gravel bin of a concrete mixing plant, the drainage ditch structure comprises a frame body, a drainage mechanism is arranged in the frame body, and the drainage mechanism extends to the outer side of the frame body; the drainage ditch structure of the gravel stock bin of the concrete mixing plant has the beneficial effects that a baffle is rotated and opened through a hinge, then a connecting plate is held and pulled backwards, the connecting plate drives a plurality of clamping blocks to move backwards, at the moment, a plurality of springs are stressed, the clamping blocks are pulled backwards, and the clamping blocks are pulled backwards; when the clamping blocks are separated from the filtering frames, the filtering frames needing to be replaced can be independently taken out and replaced, so that a worker can conveniently and specifically clean solid substances in a certain filtering frame,