33results about How to "Free conversion" patented technology

The invention relates to the technical field of riding suitcases, and in particular relates to a folding riding suitcase. The folding riding suitcase comprises a box body, idler wheels, a riding frontfork and a riding front wheel; the idler wheels are at the bottom of the box body, and used for supporting the box body to roll; the riding front wheel is below the riding front fork; a swing arm mechanism performing rotary folding towards the bottom of the box body is installed on the box body; the riding front fork is installed on the swing arm mechanism; the riding front fork is rotatably folded to the bottom of the box body through the swing arm mechanism; and a rotary folding mechanism is on the riding front fork, and used for folding the upper section of the riding front fork protrudingout of the bottom of the box body to the bottom of the box body in a rotary folding manner. The folding riding suitcase in the invention has the benefits that: compared with the riding suitcase thatthe riding front fork is parallel and telescopic, the riding front fork and the riding front wheel are rotatably folded to the bottom of the box body; the hiding performance is good; furthermore, theinternal storage space of the suitcase becomes large; simultaneously, the folding riding suitcase in the invention can be converted between a riding state and a hand pushing state conveniently, freelyand randomly; and thus, the folding riding suitcase is convenient for users to travel.

The present invention provides a piece of dual-purpose tableware. A spoon is disposed at the other end of an ordinary fork. When the dual-purpose tableware is used, and switch between the spoon and the fork can be rapidly and freely completed. Two kinds of tableware are combined into an integral body at the same time, and the expenditure is saved.

The invention provides a dual-use table ware. The other end of a common fork is provided with a spoon. During the use, switch between the fork and the spoon can be quickly and freely achieved; and two tableware articles are combined into one, so cost can be reduced.

The invention relates to the crossing field of diffraction optics and optical fiber optics, in particular to an optical fiber spatial transmission mode converting device and a converting method based on an optical phased array under free and flexible programmed control. According to the optical fiber spatial transmission mode converting device, two sets of optical fiber coupling interfaces, calibration beam expanders, beam splitters and reflectors are arranged in symmetry with an optical phased array acting surface or the perpendicular surface of the optical phased array acting surface, then a 4-f system is formed, the optical phased array 5 is arranged on the Fourier plan of the 4-f system, and thus the converting device is formed. The invention further discloses a converting method using the converting device. Free and flexible conversion of optical fiber spatial transmission modes is achieved.