4results about How to "Short operating time" patented technology

This invention provides a universal elastic torque loading device for electric servos. Through the cooperation of a worktable, servo mounting components, and a load-bearing component, it achieves automatic elastic torque loading of the electric servo. A dedicated adapter plate and adapter connector standardize the external mounting and output interfaces of the electric servo. The simple and quick engagement and disengagement of the dedicated adapter connector, adapter shaft, and load-bearing component enable the torque load output and transmission of the electric servo. This universal elastic torque loading device has a reasonable structure, short operation time, and improved work efficiency.

This invention discloses a universal method for preparing two-dimensional metal nanosheets via an in-situ electrochemical reduction process: first, metal tellurides or metal selenides are subjected to freeze-sonic liquid-phase exfoliation to obtain two-dimensional metal telluride nanosheets or two-dimensional metal selenide nanosheets; then, the two-dimensional metal telluride nanosheets or two-dimensional metal selenide nanosheets are reduced in an H-type electrolytic cell system to obtain the two-dimensional metal nanosheets. The preparation method of this invention is simple to operate, requires no complex equipment, and operates under mild conditions. The prepared two-dimensional metal nanosheets have broad prospects for applications such as the electrochemical C-N coupling synthesis of urea.

The utility model relates to the field of heat exchanger especially, it is a kind of heat exchanger convenient to overhaul, the heat exchanger body is equipped with the overhaul groove, the inner wall of overhaul groove is fixedly provided with backing plate, and the overhaul plate is installed on backing plate, and the multiple mounting columns are fixedly provided on the overhaul plate, and the through hole is adapted to be equipped with in the corresponding mounting column on backing plate;The end of mounting column is rotatably provided with limit piece, and the other end of mounting column is movably provided with pull plate, and the locking column for locking limit piece is fixedly provided on pull plate. In the utility model, limit piece is clamped on the inner wall of backing plate, and is locked with the locking of locking column, overhaul plate can be fixedly assembled in overhaul groove, and the dismounting mode of overhaul plate is shorter in operation time, and it is convenient for user to overhaul heat exchanger body.