2results about How to "Easy to use manually" patented technology

The utility model relates to the technical field of compressor overhauling, especially a piston body back loading device of compressor, including support rod and at least one group of support components, each group of support components includes at least two length adjustable support arms that are evenly arranged along the circumference, one end of the support arm is connected with the support rod, and the other end is used for contacting with the inner wall of cylinder, after length adjustment, the support arm length of the same group of support components is same, the end part of support rod is equipped with the connector, and the connector is connected with the piston body by detachable connection mode, the support rod, the connector and the piston body are coaxial arrangement, the support rod rotates and is used for driving the piston body to rotate, the device can reduce the friction between the piston body and the inner wall of cylinder in the back loading process by slightly lifting the piston body, and reduces the resistance.

This utility model discloses a pruning device for garden engineering maintenance, relating to the technical field of pruning devices. The pruning device includes an electric push rod, a push rod support base at the lower end of the electric push rod, a push rod base at the lower end of the push rod support base, and a third bolt at the upper end of the push rod support base, which is fixedly connected to the push rod base via the third bolt. An electrical box is located on one side of the electric push rod, electrically connected to the electric push rod and positioned on the upper end of the push rod base. A telescopic rod is located on the upper end of the push rod base. Reinforcing plates are provided on the electric push rod and the telescopic rod, with a second handle at the upper end of the reinforcing plate. A protrusion is located on the upper end of the electric push rod, with a groove at the front end of the protrusion containing a first connecting rod. This solution addresses the problem that pruning at certain angles cannot be manually performed.