Upper cover of air-brake brake valve

Upper cover of air-brake brake valve

  • CN 102,616,230 A
  • Filed: 04/06/2012
  • Published: 08/01/2012
  • Est. Priority Date: 04/06/2012
  • Status: Active Application
First Claim
Patent Images

1. gas braking valve upper cover body comprises loam cake housing (2) and loam cake brake piston (1), the inwall slipper seal of the plunger shaft of loam cake brake piston (1) and loam cake housing (2);

  • The end face of the plunger shaft of the end face of loam cake brake piston (1) and loam cake housing (2) forms brake repair room (8);

    Be provided with control pore (4) at loam cake housing (2), it is characterized in that;

    the top of loam cake brake piston (1) is provided with guidepost (3), on the top cover of loam cake housing (2), is provided with and the adaptive guide groove of guidepost (3);

    Be provided with up big and down small vertical three rank stepped holes at the center of loam cake brake piston (1);

    Control pore (4) is communicated with the largest hole of three rank stepped holes, and the end face that is lower than loam cake brake piston (1) bottom of the largest hole of three rank stepped holes is provided with valve piston (5) in the largest hole of three rank stepped holes;

    In the interstitial hole of three rank stepped holes, be provided with the spring (6) that supports valve piston (5);

    The end face of loam cake brake piston (1) is the high outside and low outside conical surface, on guidepost (3), is provided with the drain gutter (7) of the largest hole of leading to three rank stepped holes, under non-braking mode;

    The end face of guidepost (3) and the sealing of the end face of guide groove;

    The ponding of brake repair room (8) is discharged through the interstitial hole and the minimum aperture of drain gutter (7) and three rank stepped holes, and under braking mode, control gas promotes valve piston (5) and moves down;

    Seal the interstitial hole of three rank stepped holes;

    Control gas gets into brake repair room (8) through drain gutter (7), promotes loam cake brake piston (1) and moves down, when brake off;

    Valve piston (5) moves up under the effect of spring restoring force, and braking gas in the brake repair room (8) and ponding are together discharged through the interstitial hole and the minimum aperture of drain gutter (7) and three rank stepped holes.

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