Patent ID: 6948833

Claim:
A ceiling lamp suspending device comprising: a wire connecting box having two ears which are symmetrically arranged at two edges of the wire connection box; a retaining sheet below the wire connection box; the retaining sheet having a through hole near a center of the retaining sheet; one edge of the through hole being extended with and communicable to a long hole; a stop elastomer disposed aside the through hole; a part of the stop elastmoer covering the through hole; a retaining block install below the retaining sheet; the retaining block having a threaded section and a shaft extended from the threaded section upwards; an upper end of the shaft being a neck portion and a suspending portion being extended from the neck portion; a via hole being formed on the shaft; the suspending portion passing through the through hole of the retaining sheet; and the neck portion being movable in the long hole of the retaining sheet so that the suspending portion is supported in the long hole; wherein when the retaining sheet is locked to the positioning holes of the ears of the wire connection box, the suspending portion of the shaft inserts into the through holes of the retaining sheet; the stop elastomer ejects upwards so that the neck portion of the shaft is positioned in the through hole; the shaft is pushed toward the long hole of the retaining sheet so that the neck portion is positioned in the long hole; the suspending portion is supported by the long hole and thus the shaft will not fall down; moreover, the stop elastomer restores to the position of the neck portion to prevent the movement of the shaft; thus, the shaft is positioned to the long hole of the retaining sheet.