42results about How to "Meet bending needs" patented technology

The invention discloses a folding display device. The device comprises a flexible display screen, a middle shell, two supporting shells arranged on the two opposite sides of the middle shell respectively and a rotating assembly arranged between each supporting shell and the middle shell, each supporting shell is rotationally connected with the middle shell, one end of each rotating assembly is rotationally connected with each supporting shell, the other opposite end of each rotating assembly is a free end and extends into the middle shell, and the supporting shell and rotating assemblies jointly support the flexible display screen; the two supporting shells rotate relative to the middle shell, and the rotating assemblies rotate relative to the corresponding supporting shells and the middleshell; and in the folding process of the folding display device, the free ends of the rotating assemblies rotate in the direction close to the inner wall of the middle shell, and the two rotating assemblies rotate to form an avoiding space so as to contain the bent end of the flexible display screen.

The invention provides an automotive braking hard tube bending tool applied to the technical field of automotive braking rod hard tube production and processing equipment. A tool frame (1) of the automotive braking hard tube bending tool is connected with a fixing component, a lifting stand column (2) in the tool frame (1) is connected with a retractable cylinder (3) and is connected with a meshing rack (4); a meshing gear (6) is mounted on a rotating shaft (5) on the tool frame (1); the meshing gear (6) is meshed with the meshing rack (4); an extruding wheel (7) is mounted at one end of the rotating shaft (5); a connecting rod (8) is further mounted on the rotating shaft (5); and a bending wheel (9) is mounted at an end of the connecting rod (8). By the automotive braking hard tube bending tool, tube bending operation can be finished conveniently and rapidly; while tube bending efficiency is improved, the labor intensity of operators can be reduced greatly; tubes with different diameters can be bent; the universality of use of the tool is improved; and the processing cost is reduced.

The invention discloses a multiple-cylinder linkage hydraulic machine hydraulic system use method, and belongs to the technical field of hydraulic machines. The method comprises the control steps of main oil cylinder rapid down, main oil cylinder slow down, main oil cylinder pressure maintaining, main oil cylinder pressure release, main oil cylinder return and the like; when main oil cylinder rapid down is performed, a cartridge valve III, a cartridge valve VII and a cartridge valve VI are switched on, a cartridge valve IV is switched off, an upper cavity of a main oil cylinder is subjected tooil taking, and a lower cavity of the main oil cylinder is subjected to oil return; when main oil cylinder slow down is performed, a cartridge valve VII and a cartridge valve V are switched on, the cartridge valve VI is switched off, the upper cavity of the main oil cylinder is subjected to oil taking, the lower cavity of the main oil cylinder is subjected to oil return, and a workpiece is pressed; when main oil cylinder pressure maintaining is performed, the cartridge valve VII and the cartridge valve VIII are switched off, oil lines of the upper cavity and the lower cavity of the main oil cylinder are disconnected, and the main oil cylinder is locked; when main oil cylinder return is performed, the cartridge valve III is switched off, the cartridge valve IV and the cartridge valve VII are switched on, the lower cavity of the main oil cylinder is subjected to oil taking, and the upper cavity of the main oil cylinder is subjected to oil return. Accordingly, control over actions such as large hydraulic machine rapid down, slow down, pressure maintenance, pressure release and return can be achieved stably and reliably.