Discharging mechanism of concrete mixing plant

The utility model discloses a concrete mixing plant unloading mechanism which is provided with a mixing plant and an unloading pipe opening, unloading hoppers driven by a first air cylinder are arranged on the two sides of the unloading pipe opening respectively, the lower portions of the two unloading hoppers are hinged, scraping assemblies driven by a second air cylinder are arranged in the unloading hoppers, and a plurality of inserting claws are evenly distributed at the ends of the unloading hoppers. And the scraping assembly is tightly attached to the inner walls of the discharging hoppers, when the two discharging hoppers are closed, the scraping assembly wraps the outer wall of the discharging pipe opening, and the scraping assembly is composed of an inner scraping plate and side scraping plates symmetrically arranged on the left side and the right side. Air holes are further formed in the upper portion of the scraping plate in the scraping assembly and connected with an air supply device through an a