Patent ID: 11878843
Assignee: SHANGHAI DREAM HOUSEWARE CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A detachable and washable cup lid, comprising:
an outer cover adapted to a cup body, wherein a top inner wall of the outer cover protrudes downwards to form a clamping frame, a clamping groove is formed in an inner wall of the clamping frame, and a notch communicating with the clamping groove is formed in a bottom end of the clamping frame;
an inner bolt vertically arranged in the outer cover, wherein a top of the inner bolt is inserted into the clamping frame, a clamping block is formed at a top end of an outer wall of the inner bolt, the clamping block is inserted into the clamping groove to limit and connect the inner bolt and the outer cover; the clamping block is driven by rotating the inner bolt to rotate from an interior of the clamping groove to the notch and then to be disengaged from the clamping groove through the notch, to allow the inner bolt and the outer cover to be detached and disengaged;
a locking piece, wherein an interior of the inner bolt is hollow, a vertical groove is formed in a side wall of the inner bolt, the locking piece is vertically arranged in the vertical groove and is hinged to the inner bolt, the locking piece rotates around a hinged portion, and a top end of the locking piece corresponds to the inner wall of the clamping frame;
a first spring, wherein a first end of the first spring is connected to a bottom end of the locking piece, and a second end of the first spring is directed towards the interior of the inner bolt and is connected to the inner bolt; and
an elastic leakage-proof sleeve, wherein the elastic leakage-proof sleeve is sleeved on a bottom end of the inner bolt and corresponds to a bottom of the vertical groove, the elastic leakage-proof sleeve is bound to a bottom of the locking piece, the elastic leakage-proof sleeve drives the locking piece to rotate around the hinged portion to allow the top end of the locking piece to jack up the inner wall of the clamping frame, to avoid relative rotation between the inner bolt and the outer cover;
wherein the elastic leakage-proof sleeve is disengaged from the inner bolt to remove binding to the locking piece, the locking piece rotates around the hinged portion under an action of the first spring, and then the top end of the locking piece is driven to be disengaged from the clamping frame to allow the inner bolt and the outer cover to rotate relatively.