DEVICE FOR QUICK-DETACHABLE CONNECTION Russian patent published in 2019 - IPC F16L37/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to devices used as clamping devices with tightness of connection, and can be used in reference instruments, in collectors for checking pressure gauges, sensors and other pressure measuring devices. Device for quick-detachable connection of cylindrical housing 1 of reference device includes a clamping element put on it with the possibility of movement along axis of housing 1, made in the form of holder 2, spring-loaded from below by spring 3. Inside housing 1 there is hollow piston 4 with seal 5 spring-loaded by spring 6. On the end of piston 4 there is seal 7 for tight connection of the tested device. Between cylindrical housing 1 and holder 2 there is a fixing connection element, which is threaded bushing 8, which has uniformly made longitudinal cuts 9 along the entire length and placed on end faces of cuts in recesses 10 of spring 11. Threaded sleeve 8 envelopes cylindrical housing 1 and with its cams 12 engages groove 13 in cylindrical housing 1 of reference device. Cylindrical housing 1 has a smooth outer surface. Bushing 8 can be opened in upper part under action of springs 11, and on other side is covered with inner surface of holder 2. Inside threaded bushing 8 there is thread commensurate with thread on threaded union 14 of tested device 15. Inside cylindrical housing 1 along its axis there is hole 16 for supply of working medium to verified instrument 15.

EFFECT: invention simplifies the procedure for assembling a measuring device with quick-detachable connection elements and increases reliability and strength of a quick-detachable connection.

1 cl, 4 dwg