Building site pushes away material structure with fragment of brick rubbing crusher's

The utility model provides a building site pushes away material structure with fragment of brick rubbing crusher's belongs to engineering machinery. It has been solved current building site and has needed artifical brickbat, technical problem such as inefficiency with fragment of brick rubbing crusher. Fragment of brick rubbing crusher includes the frame and fixes the feed hopper in the frame, the feed hopper below is equipped with a feeding section of thick bamboo, feeding section of thick bamboo level sets up, feed hopper's feed opening and the middle part of feeding section of thick bamboo intercommunication, the one end that lies in a feeding section of thick bamboo in the frame is equipped with the reducing mechanism, originally, push away the setting of material structure between a feeding section of thick bamboo and reducing mechanism, including pushing away material cylinder and scraping wings, push away the other end that the material cylinder was fixed in the frame and was lain in a feeding section of thick bamboo, the piston rod that pushes away the material cylinder stretches into in the feeding section of thick bamboo and is parallel with the axis of a feeding section of thick bamboo, the one end in the piston rod that pushes away the material cylinder stretches into a feeding section of thick bamboo is fixed to the scraping wings. The utility model has the advantages of can smash the fragment of brick automatically quick.