JPH02108111U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 4 are related to the present invention, with Figure 1 being a structural diagram of the flow rate pressure regulating valve, and Figure 2 being B-- in Figure 1.
B sectional view, Figure 3 is the CC sectional view of Figure 1, Figure 4
The figure is a view taken along arrow D in FIG. 1...Flanged short pipe, 2...Piston, 3...Rotating shaft, 4...Compression coil spring, 5...Conical roller bearing, 6
...Guide bolt, 8...Variable flange, 11...Upstream main pipe, 14...Downstream main pipe.

Claims (1)

[Scope of utility model registration request] A flanged short pipe 1 inserted between the upstream main pipe 11 and the downstream main pipe 14 and having a stop plate 7 welded to the upper end; between the flanged short pipe and the flange of the downstream main pipe. It is inserted and the center part is supported by a bearing.
It is fixed so that it can be rotated around the axis, and
a variable flange 8 having an eccentric hole 18 and a communication hole 19 between the downstream piston chamber and the downstream main pipe; a variable flange 8 that is slidably fitted into the flanged short pipe 1 and has an axial groove and a guide bolt 6; A piston 2 whose rotation and movement above a certain height are restrained via a stop plate 7; an upper end supported by the inner periphery of the piston, a lower end rotatably supported by a bearing, and an eccentric through hole 1;
7; is sandwiched between the piston 2 and the rotating shaft 3, and generates rotational force at the same time as deflection in the axial direction due to pressure changes in the upstream or downstream main pipe, and rotates. A flow rate pressure regulating valve comprising a shaft 3 and a compression coil spring 4 that changes the overlapping of eccentric holes 17 and 18 of a variable flange 8 to narrow the fluid passage.