51results about How to "Reduce excessive wear" patented technology

A portable rebound (or deflecting) sports training device having at least a first rebound panel or surface adapted to rebound a ball away from the device, and a support structure adapted to hold the panel in a first, operational condition in which the panel is held generally upright; the panel and the support structure having a second, transport or storage, configuration relative to each other such that the panel and support structure lie flatter (or generally flat) relative to each other in the direction transverse to the rebound panel such that the device occupies less space.

The invention relates to the technical field of pipe processing equipment and discloses anticorrosive paint spraying and grinding equipment for production and processing of a buried pipe. The anticorrosive paint spraying and grinding equipment comprises a machine table; supporting legs are fixedly installed at the bottom end of the machine table; fixing rods are fixedly installed at the top end ofthe machine table; the top ends of the fixing rods are fixedly connected with a horizontal plate; a transmission machine is placed on the horizontal plate; the middle part of the transmission machineis fixedly provided with a fixed point grinder in a sleeving manner; a component positioned at the side surface of the fixed point grinder is fixedly installed inside the transmission machine; movingwheels are arranged at the bottom end of the transmission machine; and the moving wheels are matched with fixing grooves which are formed in the top of the horizontal plate. According to the anticorrosive paint spraying and grinding equipment for production and processing of the buried pipe, a transmission driven plate is moved toward a direction corresponding to a screw handle by twisting the screw handle so that two externally connected rods are used for driving two contact plates to expand; by regulating the radian of the two contact plates, material pipes which are different in diameter can be conveniently supported and positioned; and a bearing frame device is used for auxiliary support for the position, thereby effectively guaranteeing processing of the material pipes which are different in length.