High-pressure cleaning machine achieving non-loaded starting and automatic starting and stopping

Abstract

The invention belongs to the technical field of cleaning machines, and particularly relates to a high-pressure cleaning machine achieving non-loaded starting and automatic starting and stopping. The high-pressure cleaning machine comprises a motor, a pump body linked with the motor, a pump head, a water inlet pipeline, a water outlet pipeline and a spray gun connected to the water outlet pipeline,wherein the water inlet pipeline and the water outlet pipeline are connected with the pump head. A non-loaded starting valve, an unloading valve and a starting-stopping control valve are arranged onthe pump head. The non-loaded starting valve comprises a pressure control valve, and a steel ball slides in the pressure control valve and divides the pressure control valve into a high-pressure cavity and a low-pressure cavity. The unloading valve comprises a mounting cavity communicating with the pump body. An unloading valve rod is in sliding and sealing connection in the mounting cavity and divides the mounting cavity into a pressure cavity and a pressure maintaining cavity. The starting-stopping control valve comprises a pressure induction cavity, and a piston is in sliding and sealing connection in the pressure induction cavity and divides the pressure induction cavity into a drive pressure cavity and a return pressure cavity. The high-pressure cleaning machine is started when the gun is started and is stopped when the gun is stopped, operation is convenient, the motor is started in a non-loaded manner, and the service life of the motor is prolonged.

Description

Technical field: [0001] The invention belongs to the technical field of cleaning machines, in particular to a high-pressure cleaning machine with no-load start-up and automatic start-stop. Background technique: [0002] The power switch and the cleaning switch gun are operated separately during most operations of the existing electric high-pressure cleaning, which is not intelligent enough and reduces the convenience of the operator. At the same time, when the washing machine is started, the pressure in the pump will suddenly increase, but the power of the motor cannot immediately reach the power at work, that is, the load at startup is greater than the rated load of the machine (overload startup), and the motor is prone to stalling at this time. , In severe cases, the motor will be burned. Invention content: [0003] The purpose of the present invention is to provide a high-pressure cleaning machine with no-load start and automatic start-stop, which is easy to operate wh...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing electric high-pressure cleaners operate the power switch and the cleaning switch gun separately, which is not intelligent enough and reduces the convenience of the operator.

At the same time, when the washing machine is started, the pressure in the pump will suddenly increase, but the power of the motor cannot immediately reach the power at work, that is, the load at startup is greater than the rated load of the machine (overload startup), and the motor is prone to stalling at this time. , it will burn the motor in severe cases

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