Anti-clogging jetting device

Anti-clogging jetting device

CN
  • CN 201,354,459 Y
  • Filed: 12/17/2008
  • Issued: 12/02/2009
  • Est. Priority Date: 12/17/2008
  • Status: Active Grant
First Claim
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1. , block-resistant spraying device, it is characterized in that comprising housing, piston bush, composite piston and anticorrosion interior cover, housing have a cavity, the top is provided with the high-pressure water pipe interface, the water under high pressure interface is identical with lower cavity downwards, the bottom of piston bush is provided with the screw thread bulge loop and is screwed in housing bottom, the centre of piston bush has up big and down small trapezoidal hole, the aperture that the composite piston lower end is provided with valve piston and the middle trapezoidal hole of piston bush bottom is slidingly connected, the composite piston upper end is provided with big piston and trapezoidal hole top macropore is slidingly connected, be with spring on the cylindrical of valve piston, the lower end of spring and the centre of trapezoidal hole join, the top of composite piston has the inlet opening, and the bottom of composite piston has hole for water spraying, and the inlet opening is connected by central passage with hole for water spraying.

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