Low pressure maintaining high pressure cleaning device and low pressure maintaining method
A technology of high-pressure cleaning and low-holding pressure, applied in cleaning methods and utensils, cleaning methods using liquids, chemical instruments and methods, etc., can solve problems such as easy damage to holding pressure, low holding pressure, etc.
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[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] as attached figure 1 , attached figure 2 , attached image 3 Shown: a low-pressure maintaining high-pressure cleaning device, including: a high-pressure pump 1 with a motor 11, a low-pressure maintaining device; the low-pressure maintaining device includes: a pressure relief outlet 21, a high-pressure outlet 22, and a high-pressure pump 1 The valve body 24 of the high-pressure inlet 23 communicated with the outlet hole 12, and the low pressure-holding valve 2 whose rear end stretches out the valve stem 25 at the rear end of the valve body 24, is provided with a drive rod 31 opposite to the valve stem 25 rear end and connected to the motor 11 Electrically connected control switch 3.
[0022] The low pressure maintaining valve 2 includes: a stepped hole 26 provided on the valve body 24 and the large end of which communicates with the rear end of the valve body...
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