Plunger pump and high-pressure cleaning machine

Abstract

The invention discloses a plunger pump and a high-pressure cleaning machine. The high-pressure cleaning machine comprises a cleaning gun and the plunger pump (1), the plunger pump comprises a pump body (7), and a water inlet (9), a water inlet end water storage cavity (12), at least four plunger cavities (13) and a high-pressure water outlet (10) are formed in the pump body (7), wherein the waterinlet (9), the water inlet end water storage cavity (12), the at least four plunger cavities (13) and the high-pressure water outlet (10) communicate with one another in sequence. The at least four plunger cavities (13) are evenly distributed on the circumferential side of the water inlet end water storage cavity (12) in the circumferential direction. A plurality of high-pressure flow channels anda water outlet flow channel (17) are further formed in the pump body (7). One ends of the high-pressure flow channels are connected with the plunger cavities (13), the other ends of high-pressure flow channels are connected with the water outlet flow channel (17), and the water outlet flow channel (17) is connected with the high-pressure water outlet (10). The high-pressure flow channels are distributed outside a region (100), and the outer edge of the region (100) is internally tangent to the walls of the plunger cavities (13). The plunger pump and the high-pressure cleaning machine have thebeneficial effects that more plungers are adopted, the flow pulsation rate is smaller, and the stability of the water outlet pressure is improved compared with that of a triple plunger pump.

Description

technical field [0001] The invention belongs to the technical field of washing machines, and in particular relates to a plunger pump and a high-pressure washing machine. Background technique [0002] The plunger pump is the most commonly used pump for high-pressure cleaners. The plunger pump is driven by a power unit (motor, gasoline engine, diesel engine, etc.) to pressurize the water at normal pressure and then output it, so as to efficiently clean the ground, vehicles, and other items. Existing high-pressure cleaners are limited to product volume, weight, structural limitations, and cost considerations. Three-plunger pumps are generally used, with large flow rate pulsation and insufficient cleaning stability. For the plunger pump, the number of plungers, the arrangement of the internal flow channels, and the structural design of the flow channels have a crucial impact on the flow pulsation, pressure stability, and manufacturing cost of the high-pressure cleaner. It is on...

AI Technical Summary

Problems solved by technology

Existing high-pressure cleaners are limited to product volume, weight, structural limitations, and cost considerations. Three-piston pumps are commonly used, with large flow rate pulsation and unsmooth cleaning.

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