Patent KR-100739107-B1 (KR)
Title: Outlet for preventing an electric shock
Inventor: SONG SANG HO
IPC: H01R13/44
Filed: 2007-02-02
Granted: 2007-07-13
Abstract: A receptacle of a wall surface buried type in an apartment house is provided to prevent various accidents by preventing the generation of an electric shock accident due to the judgment inexperience of infants or children without the risk of an electric shock although another conductive object except for a standardized plug is inserted into a terminal insertion hole of the receptacle. A groove(111) is formed in a supporting plate(110). A rotary body(130) has a rotary shaft(132), a rotary shaft stand(131), and a pair of fixing tubes(133,133'). The rotary shaft(132) is rotatably engaged with the groove(111) in a rear surface of the rotary body(130). The rotary shaft stand(131) is protruded to a front surface in the same shaft position as the rotary shaft(132). An insertion hole(134) opened in a front surface is formed at an internal side of the rotary shaft stand(131). A female thread is formed on an inner circumference surface of the insertion hole(134). The fixing tubes(133,133') opened in a front surface are formed at both sides of the rotary body(130) centering around the rotary shaft stand(131). A torsion spring(120) fixes the rotary shaft(132) engaged to the groove(111) to be elastically repulsed in one direction for rotary force. A pair of conductive poles(140,140') are electrically connected with a wire, and are fixed to the fixing tubes(133,133') to be capable of being electrically repulsed through a repulsive body. Each of front surfaces of the conductive poles(140,140') is cut in four surfaces. A supporter(150) has a through hole(152) and a pair of movement grooves(151,151'). The tailing of the rotary shaft stand(131) is rotatably connected and fixed to the through hole(152). The through hole(152) is cut and formed to be penetrated with the insertion hole(134). An inner circumference surface of the through hole(152) is angled. The movement grooves(151,151') are cut and formed at both sides centering around the through hole(152). Each of a pair of conductive bodies(160) has a fixing stand(162), a conductive stand(161), and a repulsion spring(163). A terminal of a plug is penetrated in the fixing stand(162). The conductive stand(161) is faced with the four surfaces of the conductive poles(140,140') which contact with the terminal and move and rotate along the movement grooves(151,151'). The repulsion spring(163) elastically and repulsively connects the fixing stand(162) with the conductive stand(161) with respect to tension. A screw(170) has a thread stand(171) and a holding stand(172) of a polygonal shape. The thread stand(171) is inserted into the insertion hole(134) of the rotary shaft stand(131), and a male thread corresponding to the female thread is formed on an outer circumference surface of the thread stand(171). The holding stand(172) is movably inserted into the through hole(152), and is engaged with the angled part of the through hole(152). A cover(180) has a terminal insertion hole(181a), an insertion hole(181b), a basic body(181), and a rotary table(183). The terminal insertion hole(181a) and the insertion hole(181b) are fixed to front surfaces of the supporter(150) and the fixing stand(162), and are connected to the supporting plate(110) through a side wall. The terminal insertion hole(181a) and the insertion hole(181b) are formed to line up with the fixing stand(162) and the holding stand(172), and the terminal of the plug and a supporting stand are inserted and penetrated into the terminal insertion hole(181a) and the insertion hole(181b). A rotary groove(182) having a holding protrusion(181c) protruded on the center is formed in a part of an edge of the basic body(181). The rotary table(183) is rotatably and safely received in the rotary groove(182). A holding groove(183c) in which the holding protrusion(181c) is moved is formed in a part of an edge of the rotary table(183). The rotary table(183) has a through hole(183a) and an insertion hole(183b) penetrated with the terminal insertion hole(181a) and the insertion hole(181b).