Patent attributes
An umbrella base filled with a counterweight comprises an upper cover having a through hole in the center, a base plate, a sleeve, a ring and a counterweight; wherein, the upper cover is placed on top the base plate forming a chamber; the ring stands vertically inside the chamber separating the upper cover and the base plate; the sleeve has a tubular and receives an umbrella column, and is placed vertically on the center of the top surface of the upper cover and aligns with the ring; and a connecting piece is inserted through the base plate, the ring and the upper cover and connects to the sleeve. Or, the bottom of the sleeve passes through the upper cover and screws onto the ring. The umbrella base in the present invention is simple and reasonable in structure, stable and reliable in use, and low in cost, which can meet both usage and environmental protection requirements. It has an appearance not significantly different from that of parasol bases integrally molded by iron plates, and is worth popularizing.