Lipstick casing

Abstract

A lipstick casing includes a rotational base, an outer receiving tube, and an inner receiving seat. The inner receiving seat includes a receptacle for receiving a lipstick. The rotational base includes a screw rod on a top portion thereof. The rotational base is mounted to a bottom of the outer receiving tube, with the screw extending into the outer receiving tube. The inner receiving seat is mounted in the outer receiving tube and includes a screw hole. The screw rod is in threading connection with the screw hole. The lipstick casing is simple in structure, easy to manufacture, and easy to operate during use, providing enhanced utility.

1 . A lipstick casing comprising a rotational base, an outer receiving tube, and an inner receiving seat, with the inner receiving seat including a receptacle adapted to receive a lipstick, with the rotational base including a screw rod on a top portion thereof, with the rotational base mounted to a bottom of the outer receiving tube, with the screw extending into the outer receiving tube, with the inner receiving seat mounted in the outer receiving tube and including a screw hole, and with the screw rod in threading connection with the screw hole. 
     
     
         2 . The lipstick casing as claimed in  claim 1 , with a first annular boss formed at a connecting section between the screw rod and the rotational base, with a second annular boss provided on a lower portion of the screw rod and located above the first annular boss, with the bottom of the outer receiving tube including an annular groove matching with the first annular boss, with the annular groove including a bottom wall having a through-hole, and with a plurality of protrusions extending inward from a periphery of the through-hole,
 wherein when the screw rod extends into the outer receiving tube, the first annular boss is snugly received in the annular groove, and the first annular boss includes a bottom portion abutting the plurality of protrusions.   
     
     
         3 . The lipstick casing as claimed in  claim 1 , with the outer receiving tube including an inner wall, with a sliding rib formed on the inner wall of the outer receiving tube, with a sliding groove defined in an outer wall of the inner receiving seat and matching with the sliding rib, with the sliding rib slideably received in the sliding groove, and with the outer receiving tube and the inner receiving seat slideable relative to each other. 
     
     
         4 . The lipstick as claimed in  claim 1 , further comprising: a cap, with the cap mounted around an outer wall of the outer receiving tube. 
     
     
         5 . The lipstick as claimed in  claim 4 , with the cap including an inner wall having a rib, with the outer wall of the outer receiving tube including a ridge, and with the rib of the cap snap-fitted below the ridge of the outer receiving tube when the cap is mounted around the outer receiving tube. 
     
     
         6 . The lipstick as claimed in  claim 1 , with the screw rod including an opening in a side thereof.