HUP0400503A2 - Liquid feeder valve with an adjustable regulator head - Google Patents

Abstract

The control head (4) is fixed on a valve body (16), it has a basic position, an adjustment position and an active position; in the adjustment position it can be rotated around its axis, it has a shut-off valve (1) which, in the basic and adjustment positions of the control head (4), controls the flow path of the liquid to be dispensed is in blocking position. The valve body (16) has flow-through openings (11,12) on the side of a liquid source (S). The control head (4) is equipped with a striking element (5) that fits into the receiving elements (6) of the valve body (16) and is reset by a spring (14). The abutting element (5) together with the given receiving element (6) determines the axial distance (L1..., Lx) of the base level (L0) of the base position and the farthest point of the corresponding active position limiting the amount of dosing. The control head (4) is axially connected to a shut-off valve (1) attached to the common shaft (10) and a timing piston (2) through a single-coupling mechanism. In the default and active positions, the control head (4) is locked, preventing its own rotation, and the spring (14) it can be removed axially from the valve body (16) and moved to the setting position by applying a compressive external pulling force. The timing piston (2) moves axially along the inner jacket of a control cylinder (17) in the active position, is in contact with the jacket through a sealing element, delimits a closed liquid chamber (K1) together with the control cylinder (17) on one side, allows different amounts of liquid to flow through itself in two directions, and thus accordingly, the piston can move at different speeds compared to the closed chamber (K1). This controls the dispensing of a liquid quantity proportional to the distance between the base position and the active position (L1...,Lx).