Automobile-used urea case assembly

Automobile-used urea case assembly

  • CN 106,968,768 B
  • Filed: 03/31/2017
  • Issued: 12/01/2020
  • Est. Priority Date: 03/31/2017
  • Status: Active Grant
First Claim
Patent Images

1. A vehicle urea box assembly is characterized by comprising a urea box and a support, wherein the urea box is arranged on the support and is formed by injection molding of a polypropylene material and comprises an upper shell and a lower shell;

  • the top of the upper shell is provided with a sensor mounting port and a filling port which is integrally injection-molded with the upper shell, the top of the filling port is provided with a filling port cover, and a filling port plug which is pre-tightened with the bottom surface of the filling port cover is arranged in the filling port;

    a liquid level window which is integrally injection-molded with the upper shell is arranged on the side surface of the upper shell;

    a sewage draining port is formed in the bottom of the lower shell, and a sewage draining screw is arranged on the sewage draining port;

    the filling port plug comprises a filter screen and a rubber plug arranged on the upper part of the filter screen, and an O-shaped sealing ring is arranged on the outer side of the rubber plug;

    the filling opening is provided with a cover body supporting piece, the cover body supporting piece is connected with the upper surface of the filling opening through a screw, and the cover body supporting piece is connected with the filling opening cover through a metal clamping piece;

    the filling port cover is provided with an annular buckle, the annular buckle is provided with an elastic rope, the end part of the elastic rope is connected with a bolt, the top of the upper shell is provided with a double-hole gasket, and the bolt can be inserted into one hole of the double-hole gasket to fix the filling port cover;

    the wall thickness of the sensor mounting opening is larger than that of the urea box shell, and a sensor fixing insert is arranged inside the sensor mounting opening;

    the bottom of the lower shell is provided with a mounting hole and is mounted on the bracket through a nut;

    the liquid level window is made of transparent polypropylene materials and is fixed with the upper shell in a secondary encapsulation mode.

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