3results about How to "Improve torque transmission" patented technology

The geological drill rod comprises a drill rod body and a connecting rod arranged at the bottom of the drill rod body, a drill bit is arranged at the bottom of the connecting rod body, an inserting groove is formed in the bottom of the drill rod body, an inserting block is fixedly connected to the top of the connecting rod body, and clamping blocks are arranged on the periphery of the inserting block in an inserted mode. A limiting plate is fixedly connected to one side of the clamping block, and a first spring is arranged on one side of the limiting plate. According to the utility model, firstly, through the matching of the inserting block and the inserting groove, the torsion transmission between the drill rod and the connecting rod can be increased after the drill rod and the connecting rod are connected, the connection looseness caused by the rotation of the drill rod and the connecting rod is avoided, the use effect is improved, and one end of the clamping block is inserted into the clamping groove, so that the installation and the fixation are convenient; and the pushing blocks are sequentially controlled by moving the moving ring to push the clamping blocks, disassembly and replacement are convenient, and the using effect is improved.

The invention relates to a stepless adjustable transmission torque magnetic coupling, and relates to the technical field of magnetic couplings. The outer magnetic assembly is coaxially arranged on the inner magnetic assembly in a sleeving mode, and a gap always exists between the inner magnetic assembly and the outer magnetic assembly; wherein the inner magnetic assembly comprises a rotating shaft, and the rotating shaft is coaxially sleeved with the outer magnetic assembly; the three first sliding blocks are circumferentially, uniformly and slidably mounted at one end, far away from the outer magnetic assembly, of the rotating shaft; the three inner magnets are fixedly installed on the three first sliding blocks correspondingly, the three inner magnets are all arc-shaped plates, and gaps exist between the three inner magnets and the outer magnetic assembly all the time; and the adjusting piece is installed on the rotating shaft, and the adjusting piece is used for adjusting the position of the inner magnet. The magnetic coupling has the effect of improving the adaptability of the magnetic coupling.

This invention relates to a universal catheter for accessing visceral arteries via the radial artery, belonging to the field of medical device technology. The catheter is hook-shaped and comprises, on the same plane, a first straight segment, a first curved segment, a second straight segment, a second curved segment, a third straight segment, a third curved segment, and a straight head segment arranged sequentially from the end closest to the operator, with the straight head segment facing the beginning of the catheter. The specialized catheter provided by this invention increases the catheter's curvature, resulting in better stability after insertion into the target vessel; it also has better torque transmission capability, good maneuverability, and makes it easier to reach the target location within the blood vessel, shortening the operation time and increasing the success rate of the surgery.