PILOT WELL PUNCTURING RIG Russian patent published in 2005 - IPC

FIELD: mining industry, particularly devices for trenchless pipeline laying under roads and other engineering structures.

SUBSTANCE: rig comprises power cylinder with hollow shaft and support, hauling mechanism connected to cylinder and executive tool cooperating with ground and rig operation control means. All above components are put into a pit. Executive mechanism is formed as conical tip connected with rod separated into several chambers and passing into shaft. Power cylinder is made as hydraulic one, hauling mechanism comprises washer with slot and slider arranged in the slot. Washer is rotary installed on the shaft and is restricted from longitudinal displacement. Slider has control arm and figured orifice including hexahedron part and circle part. Each rod chamber is provided with outer groove with hexahedron cross-section mating to hexahedron part of slider orifice. Roller is installed on washer periphery. Secured to support is cam cooperating with roller. The rig is provided with transportable container installed in the pit and having body, bottom and hinged lid. The body comprises orifice for rod receiving and rod guide arranged inside the body. Each rod chamber has outer tapered thread formed on one end part thereof and inner tapered thread formed on opposite end thereof and mating outer one. Rig operation control means is provided with control panel. Conical tip includes radio transmitter to transmit signal indicating rig location in ground. Radio signal receiver linked with control panel is installed above ground surface.

EFFECT: simplified structure and increased reliability.

3 cl, 4 dwg