ES293757U - Step key for fluids, perfected (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Fluid passage key, perfected, that being constituted by a vertical rod through a screw above the maneuver handle, the latter receiving the thrust of a pressure spring interposed between the handle itself and the fixed tubular neck that it houses the rod, it is essentially characterized in that the rod itself is provided with a notch-like chamfer in the form of a cylindrical sector, following which and superiorly it has a peripheral groove, while the tubular neck that contains it has a horizontal pin whose internal end impinges on a position on the chamfer of the rod blocking the same, so that through the push, exerted on the handle overcoming the action of the spring, the rod moves axially downwards coinciding the pin with the throat unlocking and can be operated in opening or closing the dial, characterize furthermore, the key is provided by the fact that the internal lateral surface that defines the circular cavity of the handle has two ribs located at 90 [deg.] one with respect to the other, which are limiting stops for the pivoting movement of the pin, also having the internal surface of the pin. The lever in an opposite area two parallel ribs that establish a locking radius of the pin and its handle, previous independence of the latter with respect to the rod and its placement in the reverse position for the purposes of a seal. (Machine-translation by Google Translate, not legally binding)