Patent attributes
A cap. The cap comprises an outer cover, an inner cover, an inner container, and a base. The outer cover comprises an outer cover top and an outer cover body protruding from the outer cover top, and the outer cover top and the outer cover body form an inner cavity. The inner cover is set in the inner cavity of said outer cover, and a first female thread is set on the inner circumference of the inner cover body; a first male thread is set on the outer circumference of the inner container body, the first male thread matching the first female thread. The base comprises a base top and a base body protruding from the base top, a second female thread is set on the inner circumference of the base body, and the base top is connected to the inner container bottom of the inner container.
