WATER SUPPLY DEVICE FOR CORE DRILL Russian patent published in 2009 - IPC B28D1/14 B23B51/06 

FIELD: oil and gas production.

SUBSTANCE: invention is related to oil and gas industry, in particular, to core drills of wet type for hole drilling in object by rotation of its working tool. Device comprises water accumulator tank, pump unit for gas supply under pressure to water accumulator tank, adapter for connection of accumulator tank, pump unit and core drill with each other. Pump unit comprises gripping part, internal space of which is deformable with expansion and compression during operation of gripping by operator for gas supply into accumulator tank. Adapter includes the first adapter, comprising mount portion for installation on core drill, the second adapter, comprising mount portion for installation of accumulator tank in detachable manner onto adapter, and mount portion for installation of pump unit onto adapter. The first adapter and the second adapter include water conduit that connects mount portion of core drill and mount portion of tank. The first adapter includes valve unit, which is capable of water conduit opening and closing. The second adapter includes air channel, which connects mount portion of tank and mount portion of pump unit, and is connected to the first adapter with the possibility of rotation to vary direction of water accumulator tank installation onto mount portion of tank.

EFFECT: improved efficiency of core drill operation, reduced dimensions of device.

7 cl, 12 dwg