2results about How to "Simple and practical design" patented technology

The utility model discloses an internal expansion type sealing plug which comprises an installation disc, a first extrusion disc and a second extrusion disc, the left side and the right side of the installation disc are respectively provided with a convex structure protruding outwards, the peripheral face of each convex structure is fixedly connected with a rubber ring in a sleeved mode, and the interior of each rubber ring is hollow. The first extrusion disc and the second extrusion disc are arranged on the left side and the right side of the mounting disc correspondingly, grooves matched with the convex structures are formed in the sides, facing the mounting disc, of the first extrusion disc and the second extrusion disc correspondingly, and the convex structures on the two sides of the mounting disc slidably extend into the grooves of the first extrusion disc and the second extrusion disc correspondingly. A plurality of annularly-distributed sliding holes are formed in the two sides, facing the groove, of the installation disc. The rubber ring, the extrusion disc and other mechanisms are ingeniously combined, the pipeline plugging effect is achieved, the structural design is simple and clear, use is convenient and fast, production and maintenance cost is remarkably reduced, and good market popularization and application value is achieved.

The utility model relates to a kind of geological drilling rotary drilling rig coring auxiliary equipment, including drill pipe knob ware and core tube auxiliary car, the drill pipe knob ware can continuously whole circle rotation and tighten or loosen drill pipe, the core tube auxiliary car can realize the automatic drilling of core tube and downhole function.The utility model is innovated by drill pipe knob ware and core tube auxiliary car, realizes the efficient collaborative operation of both, from the installation and disassembly of drill pipe in geological drilling operation and the transport of core tube these two key links, successfully solves the problem of low efficiency, many security risks under traditional operation mode, improves the efficiency, security and fluency of geological drilling operation in all directions.