Sewage pump that axle sleeve of preventing reversing comes off

The utility model discloses a sewage pump that axle sleeve of preventing reversing comes off, threaded hole B (12) are seted up at the top of axle sleeve (3), seted up in axle sleeve (3) along its axle arrangement, intercommunication screw hole B's (12) through -hole (13), screw hole B (12) and thread head (10) threaded connection, be provided with long screw (14) in through -hole (13), the screwrod of long screw (14) pass through -hole (13) and with screw hole A (11) threaded connection, the bottom of axle sleeve (3) is provided with square head (15) supported in long screw (14) nut top surface, square head (15) externally mounted have rather than complex cutting blade (16). The beneficial effects of the utility model are that: compact structure, long service life, effectively prevent that axle sleeve and cutting blade from droing, the improve equipment utilization ratio. 本实用新型公开了种防反转轴套脱落的污水泵，轴套（3）的顶部开设有螺纹孔B（12），轴套（3）内开设有沿其轴向布置、连通螺纹孔B（12）的通孔（13），螺纹孔B（12）与螺纹头（10）螺纹连接，通孔（13）内设置有长螺钉（14），长螺钉（14）的螺杆穿过通孔（13）且与螺纹孔A