Make things convenient for elastic sleeve pin coupling of dismouting

The utility model relates to a make things convenient for elastic sleeve pin coupling of dismouting, including pump cupling, motor coupling, the pin, the nut, spring washers, retaining ring and elastomer, a serial communication port, the pin, perforation of the pump cupling of shaft coupling pin and motor coupling's motor coupling pin is equipped with in boring a hole, it is equipped with the elastomer to wear to adorn downthehole pin overcoat at the motor coupling pin, wear to adorn downthehole pin thread end at the pump cupling pin and install nut and spring washers, it has the pump shaft to wear to adorn the hole to open at pump cupling's center, it has the motor shaft to wear to adorn the hole to open at motor coupling's center, the cover has the retaining ring on the pin between pump cupling and motor coupling, and the concave end holding screw of hexagonal in being provided with with 90 orientations directly over pump shaft key and motor axle key respectively. Through the concave end holding screw of in