Water pump

The utility model relates to a water pump which comprises a box base, a machine base, an adapter plate and a grounding assembly, the adapter plate is installed on the box base, the machine base is installed on the adapter plate, the grounding assembly comprises a spring probe, the spring probe is installed in the adapter plate, and the spring probe can abut against the box base and the machine base in the mode that the pressing amount can be adjusted. The machine base is connected with the box base through the spring probe, and the box base is connected with the driving plate, so that effective grounding of the box base and the machine base is realized. The grounding assembly is arranged, so that a threading hole and a sealing structure corresponding to the threading hole do not need to be arranged on the base, and fine processing technology requirements are not needed; the layout of components on the driving board does not need to be adjusted, and the influence of the product structure layout is relatively s