Patent ID: 6224401
Filing Date: 2001-05-01
Classification: H01R

Abstract:
An electrical socket with safety device, comprising a chassis, a security member, a resilient member, and an insert lid;the chassis having a rectanguloid shape including two rectangular chutes extending through the chassis on the sides of the chassis, the chutes housing electrical elements of the electrical socket including conductor pieces, the chassis including a blind hole arranged centrally in the chassis between the chutes, the blind hole including a cylindrical wall having a top and a pair of concave helical grooves that extend longitudinally on opposing sides of the cylindrical wall, the pair of helical grooves extending in a matching helical orientation along the opposing sides of the cylindrical wall from openings on the top of the blind hole;the security member having a T shape and including a bumper that extends transversely and a rod arranged centrally on the bumper and extending downward, the bumper having a top and two ends and a rectangular shoe respectively provided on the top of the bumper at the two ends thereof; the rod having an axis, a bottom and opposing sides; a passage hole extending along the axis of the rod, and two protruding detents respectively arranged on the opposing sides of the rod at the bottom of the rod; andthe insert lid being secured to a top of the chassis and including a B plus hole, a grounding hole, and a round rod; the round rod being arranged between the B plus hole and the ground hole and received in the passage hole of the security member;wherein the rod of the security member is arranged within the blind hole of the chassis, the resilient member is arranged between the chassis and the security member for biasing the security member upward so that the rectangular shoes of the security member are received in the B plus hole and the grounding hole of the insert lid, and the protruding detents on the rod are arranged above the openings of the helical grooves of the chassis, andthe chassis, the security member, the resilient member, and the insert are arranged together for inhibiting access to the electrical elements housed in the chassis unless the rectangular shoes of the security member are simultaneously pushed into the chassis; whereby when rectangular shoes of the security member are simultaneously pushed into the chassis, the protruding detents on the rod are simultaneously received in the openings of the helical grooves of the chassis and slide in the helical grooves of the chassis so that the security member rotates and the electrical elements housed in the chassis are exposed; and when only one of the rectangular shoes of the security member is pushed into the chassis, the protruding detents on the rod are not received in the openings of the helical grooves of the chassis and cannot slide in the helical grooves of the chassis so that the security member cannot rotate and the electrical elements housed in the chassis are not exposed.