SEALED DEVICE Russian patent published in 2022 - IPC G01M3/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering. The sealed device comprises a body, a fluid supply channel, a pin, a pin fixation element, the first and second radial seals. From the outer end of the housing there is a bore communicated with the internal cavity of the housing. The channel goes into the inner cavity of the bore between the radial seals. The channel axis is perpendicular to the boring axis. The first and second radial seals are sequentially installed respectively in the first, closest to the outer end of the housing, and the second grooves sealing the gap between the pin and the bore. The pin is mounted with the possibility of axial movement relative to the housing from the initial position, in which the channel is in communication with the internal cavity of the housing and is isolated from the outer space by the first radial seal, to the final position, in which the channel is isolated from the internal cavity by the second radial seal. The first groove is made on the cylindrical surface of the pin, the second on the cylindrical surface of the bore. The surface of the channel is threaded. The finger has an annular groove located between the first and second grooves. The finger fixation element is made in the form of a screw screwed into the channel thread. The end face of the screw is located in the annular groove of the pin.

EFFECT: simplified design and improved manufacturability.

1 cl, 2 dwg