Water inlet and outlet valve device for water jet cutter

Abstract

The invention discloses a water inlet and outlet valve device for a water jet cutter. The water inlet and outlet valve device comprises a valve body, a high-pressure cylinder connected with the valvebody and a connecting part used for enabling the valve body and the high-pressure cylinder to be connected in a sealing mode; the valve body comprises a connecting portion and a water inlet and outletportion, the connecting portion is connected to the interior of the connecting part, and the water inlet and outlet portion is exposed out of the connecting part; a piston channel and a piston rod matched with the piston channel are arranged in the high-pressure cylinder, a high-pressure channel, a water outlet channel and a plurality of water inlet channels are arranged in the valve body, the water inlet channels and the water outlet channel both communicate with the high-pressure channel, and the water inlet channels are arranged on the water inlet and outlet portion; and one-way check valves are arranged in the water inlet channels and the water outlet channel, the piston rod can do reciprocating motion, and then the water inlet process and the water outlet process are completed in thehigh-pressure channel. By adopting the water inlet and outlet valve device for the water jet cutter, water inlet quantity control is convenient, a water inlet valve is not prone to being worn, working is stable, maintenance is convenient, and the maintenance cost is low.

Description

technical field [0001] The invention relates to the field of water jet technical devices, in particular to a water inlet and outlet valve device for a water jet. Background technique [0002] The supercharger that waterjet uses at present, its high-pressure cylinder inlet and outlet water valve device is that the high-pressure cylinder water inlet switch is contained in the high-pressure cylinder. When the high-pressure ceramic push rod performs water intake movement, the external water under pressure separates the water inlet valve pad from the water inlet valve seat, and enters the high-pressure cylinder through the gap between the water inlet valve pad and the water inlet valve seat. When the high-pressure cylinder is filled with water, the supercharger pushes the water ceramic push rod to do the reverse movement when entering the water, and pushes the water in the high-pressure cylinder out of the high-pressure cylinder. At this time, by closing the gap between the wate...

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Problems solved by technology

This kind of repair work is complicated to disassemble and assemble. At the same time, it is often necessary to replace the one-time use sealing components of the water inlet valve and high-pressure cylinder, and the maintenance cost is also high.

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