Abstract: An extendible electrical socket includes: a mother socket connected to a power supply source; and a plurality of daughter sockets which are connectable with one another to be an extendible electrical socket adapted for simultaneously connecting a plurality of electrical devices; each daughter socket including a locking device to be safely engaged with the mother socket or engaged with another or neighboring daughter socket to prevent from their disconnection when coupled and locked by each locking device.

Abstract: A safety socket includes a first conductive clamp seat and a second conductive clamp seat in alignment with a first insertion hole and a second insertion hole. In normal state, the first and second conductive clamp seats are spaced from a first power terminal and a second power terminal in an open state. When a plug is plugged into the safety socket, the prongs of the plug outward bias spring limbs of the first and second conductive clamp seats into contact with the corresponding first and second power terminals respectively. Only under such circumstance, the first and second conductive clamp seats electrically contact the first and second power terminals to close the circuit and provide power for an electric appliance. If a child inserts a conductive article into the first or second insertion hole, the danger of electrical shock can be avoided to ensure safety in use of electricity.

Abstract: A safety socket includes a first conductive clamp seat and a second conductive clamp seat in alignment with a first insertion hole and a second insertion hole. In normal state, the first and second conductive clamp seats are spaced from a first power terminal and a second power terminal in an open state. When a plug is plugged into the safety socket, the prongs of the plug outward bias spring limbs of the first and second conductive clamp seats into contact with the corresponding first and second power terminals respectively. Only under such circumstance, the first and second conductive clamp seats electrically contact the first and second power terminals to close the circuit and provide power for an electric appliance. If a child inserts a conductive article into the first or second insertion hole, the danger of electrical shock can be avoided to ensure safety in use of electricity.

Abstract: A power plug structure includes an insulating main body formed with a pair of receiving splits. A power cable having a first and a second electrodes mounted in the main body. A first and a second contact members mounted in the main body and respectively connected with the first and second electrodes of the power cable. A first and a second plug terminals respectively pivotally connected with the first and second contact members. A rotary seat body in which the first and second plug terminals are inlaid. The rotary seat body and the first and second plug terminals can be rotated relative to the insulating main body, whereby the first and second terminals can be received in the receiving splits of the insulating main body.