High-pressure washing machine

The utility model relates to a washing tool, in particular to a high-pressure washing machine. According to the technical scheme, the high-pressure washing machine comprises a shell, an electric motor, a high-pressure plunger pump and a washing liquid outlet connected with the high-pressure plunger pump, wherein the electric motor is arranged in the shell, the high-pressure plunger pump is in linkage with the electric motor, the washing liquid outlet can be provided with a spray gun, the high-pressure plunger pump is provided with a circulation channel and a connection channel, one end of the connection channel is communicated with the circulation channel, and the other end of the connection channel is communicated with the washing liquid outlet. The shell is provided with idler wheels and a pushing hand, the high-pressure plunger pump is provided with a spray gun shut-down assembly electrically connected with the electric motor, the spray gun shut-down assembly comprises an installation cavity which is formed in the high-pressure plunger pump and communicated with the connection channel of the high-pressure plunger pump, a pressure-regulating overflow assembly is arranged in the installation cavity which is provided with micro-switch and a pressure control assembly, and the micro-switch and the pressure control assembly are electrically connected with the electric motor. By adopting the technical scheme, the high-pressure washing machine saves production cost and prolongs service life of the electric motor.