Abstract: A power adaptor equipped with multi-plug and multi-outlet comprises more than one different specification plug and more than one different specification outlet. The respective plugs can be pushed out of a body of the adapter via a rotary pillar. The rotary pillar is disposed in the center of an area defined by the different specification plugs and is rotatable relative to the respective plugs. The surface of the rotary pillar has helical grooves, each plug a flange toward a corresponding groove in the rotary pillar, and the flange can slide into and along the corresponding helical groove.

Abstract: The automatic locking and releasing structure for a push-pull plug of this invention includes an upper case, a bottom case, a slider and push-buttons. The bottom case is suspended therein with two symmetrically arranged slide tracks that are each provided at the inside thereof with a wedge piece. The opposing sides of the slider are each formed with a resilient retaining arm, and the slider is movably provided between the two slide tracks. The free ends of the resilient retaining arms are movably attached to the push-buttons provided at the outside of the slide tracks. As such, when one manipulates the push-buttons to move along slide slots formed in the upper case and bottom case, the slider may be retracted or extended at the same time thereby subjecting the resilient retaining arms to assume a locking or releasing state with respect to the wedge pieces.

Abstract: A safety easily operable universal adaptor which mainly disposed with a safety device and a set of shutter whereupon a control rod of the safety device is displaced toward the right and left in opposition to an up and down motion of a positioning block and then forcibly limited each plug pin to keep in position so as to enable only single set of the plug pin can be protruded outwardly; the set of shutter is disposed in the inner side of an socket of an adaptor body and then push the shutter away when a plug is inserted therein, so as to insert the socket and electrically connect to a electrically conductive plate therebetween; by virtue of this arrangement, an electrified state is formed between the plug and the plug pin.

Abstract: The present invention provides a fiber coupler twister used in fused taper process, in which two round plates having a plurality of holes thereon are each placed in the troughs of two pedestals respectively, and can be rotated. When manufacturing a fiber coupler, a plurality of fibers are each passing through the plurality of holes on the two round plates respectively, and then rotate the two round plates, so as to form various fiber couplers with different twisting angles.