Mortar leakage prevention structure for shaft end of concrete spreader

The invention discloses a mortar leakage prevention structure for the shaft end of a concrete spreader. The mortar leakage prevention structure for the shaft end of the concrete spreader comprises a concrete stirring shaft and a motor connecting shaft. The right end of the concrete stirring shaft sleeves the upper portion of the left end of the motor connecting shaft, a multi-seal structure is installed on the motor connecting shaft, the multi-seal structure sequentially comprises a first seal, a second seal and a third seal from left to right, the first seal comprises a compression nut, a nutstop ring, a gland and an end face sealing ring, the second seal comprises a middle sealing ring, a sealing base and a sealing ring gland, and the third seal comprises a sealing ring gland, a sealingbase gland, a bearing gland, a framework sealing ring, a shaft sleeve and a roller bearing. The mortar leakage prevention structure for the shaft end of a concrete spreader can be applied to the PC complete equipment concrete