High pressure water valve and waterway control system for cleaning sweeper truck

Abstract

The invention aims at providing a high pressure water valve capable of saving the assembling space, reducing water leakage faultts and enhancing the operation stability and a waterway control system for a cleaning sweeper truck. A valve core used for separation or communication between a water inlet and a water outlet is arranged in a cavity of a valve body between the water inlet and the water outlet; the valve core comprises a piston; the cavity of the piston is of a hollow structure and forms a flowing passage; a spring is arranged at the periphery of the piston in a sleeving manner; and the spring provides an elastic force to drive a sealing cutting edge arranged at the end part of the piston to abut against a sealing block arranged in the cavity of the valve body in a sealed manner; and a power mechanism provides power to drive the valve core to move to the direction far away from the sealing block. As piston always abuts against the sealing block in a sealed manner due to the elastic force effect of the spring, water leakage is avoided; as the valve core is in a normally closed state, the power mechanism drives the valve core to move to the direction far away from the sealingblock, and the piston is separated from the sealing block, the water passes through the flowing passage in the cavity of the piston; as the aperture of the flowing passage is large, the valve core isuneasily blocked by impurities, and requirements on cleanliness of water quality are low; and moreover, the structure is compact, and the operation stability is high.

Description

technical field [0001] The invention relates to the technical field of road cleaning vehicles, in particular to a high-pressure water valve and a water channel control system for a cleaning vehicle. Background technique [0002] Sweeping vehicles are widely used in urban road cleaning. In the prior art, the high-pressure waterway control device of the cleaning vehicle mainly adopts the form of cylinder + ball valve + solenoid valve. ) patent discloses the following technical solutions: including an output air source, a pneumatic valve group connected to the output air source, a plurality of pneumatic high-pressure water valves and at least one cylinder assembly are connected to the pneumatic valve group, and the cylinder assembly includes a lifting cylinder and Telescopic cylinder, the lifting cylinder is connected with the first one-way throttle valve and quick exhaust valve, the telescopic cylinder is connected with the air-controlled one-way valve and the air-controlled t...

AI Technical Summary

Problems solved by technology

The structure of this control mode is relatively cumbersome, takes up a lot of space, and has many components, which is easy to cause water leakage faults

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