Internal chamber structure of impact crusher

The utility model provides an impact crusher inner chamber structure which comprises a machine body, a crushing assembly is arranged in the machine body, the crushing assembly comprises a transmission shaft, the transmission shaft is connected to the upper end in the machine body, the outer portion of the transmission shaft is equally connected with four impact plates, and a plurality of striking plates are arranged at the upper end in the machine body. Mounting plates are connected to the middle positions of the periphery in the machine body, connecting plates are connected to the top ends of the mounting plates, a sieve plate is connected to one end of each connecting plate, a second belt wheel and a first belt wheel are connected to the upper end and the lower end of one side of the machine body respectively, and a motor is connected to one side of the machine body; the output end of the motor penetrates through the machine body and is connected with the transmission shaft, and one end of the first belt wh