The utility model discloses a kind of three-dimensional combined
sewage unloading unit for hollow platform, it belongs to
train equipment technical field, including support
assembly, vacuum tank,
vacuum pump and
cam pump. Among them, support
assembly includes base and support frame, support frame is set on base, and form the
accommodation space in support frame;Vacuum tank is set on base, and vacuum tank has accommodating cavity, and vacuum tank is respectively set with the
sewage inlet, liquid outlet and gas outlet of the intercommunication accommodating cavity on vacuum tank;
Vacuum pump is set on support frame, and the input end of
vacuum pump is communicated with gas outlet, and the output end of
vacuum pump is provided with
exhaust pipe;
Cam pump is set in
accommodation space, and the input end of
cam pump is communicated with liquid outlet, and the output end of
cam pump is provided with
sewage pipe. The sewage unloading unit is vertically arranged by each component, reduces floor area, and improves the space utilization of the whole sewage unloading unit. Moreover, by
coupling cam pump and vacuum pump, efficient sewage unloading operation is realized.