Anti-overflow hopper for press-grouting pile

The utility model discloses an anti-overflow hopper for a press-grouting pile, and aims to solve the problem that in the prior art, when a reinforcement cage leading-in rod is pulled out, concrete mixed with muck flows back into a hole, so that the pile forming quality is affected. The hopper comprises a hopper body provided with a material cavity, a square feeding port located above the hopper body and a round discharging port located below the hopper body, a rolling shaft assembly is arranged on the inner cavity wall of the material cavity of the hopper body and close to the periphery of the square feeding port, and the rolling shaft assembly comprises a bearing seat arranged on the inner cavity wall of the hopper body and a rolling shaft installed in the bearing seat. According to the utility model, the technical effects of collecting concrete overflowing due to the fact that the volume in the pile is occupied when the reinforcement cage and the reinforcement cage leading-in rod are lowered and isolating t