Patent ID: 6951469
Filing Date: 2005-10-04
Classification: H01R

Abstract:
1. An electric outlet dust protective structure comprising: a housing having a front opening and holding a module jack having an insertion hole, said housing being formed of a casing, a faceplate, and a back cover; a top dust cover, said top dust cover comprising a flat base, a finger strip extended from a top side of said flat base at right angles and inserted through the front opening of said housing from an inside toward an outside, an actuating block protruded from a front side of said flat base, said actuating block having two sloping side edges sloping downwardly inwards and then meeting each other at a point, two guide rods perpendicularly extended from said flat base and respectively spaced from said sloping side edges of said actuating block at a distance, two side wings symmetrically disposed at two opposite lateral sides of the flat base, and two locating rods respectively downwardly extended from said side wings; left and right guide rails provided at said casing of said housing, said left and right guide rails each having a sloping guide face sloping downwardly inwards; two compression springs respectively supported between said top dust cover and said casing, said compression springs each having a top end respectively fastened to the locating rods of said top dust cover and a bottom end respectively fastened to a respective locating block at said casing; and left and right side dust covers, said left and right side dust covers each having a sloping top guide face fitting the sloping side edges of said actuating block of said top dust cover, a sloping bottom guide edge respectively kept in contact with the sloping guide faces of said left and right guide rails, and a back sliding groove respectively coupled to the guide rods of said top dust cover; wherein said compression springs impart an upward pressure to the side wings of said top dust cover, thereby forcing said finger strip against a top side of the periphery of the front opening of said housing, and therefore said actuating block and said left and right side dust covers block the front opening of said housing against outside dust; pressing said finger strip of said top dust cover to force the sloping side edges of said actuating block of said top dust cover against the sloping top guide faces of said left and right side dust covers causes said left and right side dust covers to move along the sloping guide faces of said left and right guide rails, and at the same time, said guide rods of said top dust cover are moved downwards along said back sliding grooves of said left and right side dust covers and stopped against said left and right guide rails; on the contrary, when released the hand from said finger strip of said top dust cover, said compression springs immediately push said top dust cover upwards, and said guide rods of said top dust cover are moved upwards along said back sliding grooves, and therefore said left and right side dust covers are respectively obliquely moved upwards and returned to close the front opening of said housing with said top dust cover.