Low-pressure-maintaining high-pressure pump

By designing a low-pressure pressure structure in a high-pressure pump, and using the cooperation of the pressure holder and relief valves, the problem of high-pressure cleaning machine gun is solved, and the effect of reducing pressure, reducing damage and improving user experience is achieved.

CN222633410UActive Publication Date: 2025-03-18ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202421060983.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-03-18
Estimated Expiration
2034-05-15

AI Technical Summary

Technical Problem

The existing high-pressure cleaning machines have high pressure inside the pump body, high-pressure pipe and high-pressure gun when the gun is turned off, resulting in large resistance to shooting, affecting the user experience, and may cause the high-pressure gun to explode, endangering personal safety.

Method used

A low-pressure high-pressure pump is designed. By setting the first chamber and the second chamber in the pump body, and using the cooperation of the pressure holding valve and the relief valve, the pressure in the pump body is reduced and the damage to the high-pressure gun and the high-pressure pipe is reduced.

Benefits of technology

It effectively reduces the pressure inside the pump body, reduces the burden on the pump body, reduces the resistance when re-firing after closing the gun, improves the user experience, and extends the service life of the high-pressure gun, high-pressure pipe and pump body.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222633410U_ABST
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Abstract

The utility model discloses a low-pressure-maintaining high-pressure pump, which belongs to the technical field of high-pressure pumps, solves the problem that the pressure in a pump body is larger in a gun closing state, and adopts the technical scheme that the low-pressure-maintaining high-pressure pump comprises a pump body, the pump body is connected with a water inlet pipeline and a water outlet pipeline, and a first chamber and a second chamber are arranged in the pump body; a pressure retaining valve is arranged between the first cavity and the water outlet pipeline, a one-way valve is arranged in the pressure retaining valve, an overflow valve is arranged in the second cavity, the second cavity is divided into a movable cavity and a pressure relief cavity in a sealed mode, the overflow valve comprises a first valve element, a piston and a valve head, the valve head is located in the movable cavity, and the inner diameter of the movable cavity is larger than that of the pressure relief cavity. The peripheral side of the valve head is sleeved with a first sealing ring, and the first sealing ring is in sealing fit with the inner wall of the movable cavity. The high-pressure cleaning machine is mainly used for achieving low pressure maintaining, the pressure in the pump body, the high-pressure pipe and the high-pressure gun after the gun is closed is reduced, the burden of the pump body is reduced, the re-starting resistance is reduced, and the user experience is improved.
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