Anti-blocking device of concrete pumping device

The utility model discloses a concrete pumping device anti-blocking device which comprises a hopper and a grating plate installed in the hopper, a push plate and a driving mechanism driving the push plate to move are arranged on the upper side of the grating plate, the side wall of the grating plate is fixedly connected with a first rotating shaft, and the first rotating shaft is rotationally connected with the inner wall of the hopper. A guide plate is fixedly connected to the bottom wall of the grating plate, an included angle alpha is formed between the bottom wall of the guide plate and the top wall of the grating plate, a bearing block located on the lower side of the guide plate and slidably connected with the bottom wall of the guide plate is fixedly arranged on the push plate, in the first state, the bearing block is close to the first rotating shaft, and the top wall of the grating plate is horizontally arranged and lower than the top wall of the hopper; compared with a traditional sand and stone cle