Abstract: A cup with a cup lid and a detachable and washable cup lid are provided. The detachable and washable cup lid includes an outer cover adapted to a cup body. 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. The top of the inner bolt is inserted in the clamping frame, a clamping block is formed at the top end of an outer wall of the inner bolt, and the clamping block is inserted into the clamping groove to limit and connect the inner bolt and the outer cover.

Abstract: A double-layer square insulated container includes a cuboid container body, which includes an inner liner and an outer shell, between which a vacuum layer is arranged. Reinforcing ribs are arranged on each of the inner liner and the outer shell and can make a surface of the square container evenly stressed during vacuumizing to avoid being crushed by suction. Reinforcing ribs are added to a surface of a mold. When the height of the reinforcing ribs is set to about 2 mm, the square surface is evenly stressed. Moreover, by repeated tests, the thickness of the inner liner and the outer shell is only about 0.5 mm, such that the weight of the square container is greatly reduced. Reinforcing ribs in different shapes are added to the periphery and bottom surface of the square container, which ensures support force of steel walls and improves the appearance.

Abstract: A cup includes a cup body and a cup lid. The interior of the cup body is hollow, and the top of an inner wall of the cup body is provided with a connecting piece. The cup lid is covered on the cup body. The cup lid includes an inner layer cylinder, a sandwich cylinder sleeved on the inner layer cylinder, an outer layer cylinder sleeved and clamped on an upper portion of the sandwich cylinder, a first sealing ring with an elasticity sleeved on a lower portion of the sandwich cylinder, a sealing cap detachably mounted at the bottom of the sandwich cylinder, and a cap shell covered to the outer layer cylinder and fixedly connected to the inner layer cylinder. A cylinder wall of the outer layer cylinder is provided with a connecting groove corresponding to the connecting piece.

Abstract: A cup with a cup lid and a detachable and washable cup lid are provided. The detachable and washable cup lid includes an outer cover adapted to a cup body. 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. The top of the inner bolt is inserted in the clamping frame, a clamping block is formed at the top end of an outer wall of the inner bolt, and the clamping block is inserted into the clamping groove to limit and connect the inner bolt and the outer cover.

Abstract: A cup includes a cup body and a cup lid. The interior of the cup body is hollow, and the top of an inner wall of the cup body is provided with a connecting piece. The cup lid is covered on the cup body. The cup lid includes an inner layer cylinder, a sandwich cylinder sleeved on the inner layer cylinder, an outer layer cylinder sleeved and clamped on an upper portion of the sandwich cylinder, a first sealing ring with an elasticity sleeved on a lower portion of the sandwich cylinder, a sealing cap detachably mounted at the bottom of the sandwich cylinder, and a cap shell covered to the outer layer cylinder and fixedly connected to the inner layer cylinder. A cylinder wall of the outer layer cylinder is provided with a connecting groove corresponding to the connecting piece.