Abstract: Disclosed is an automatic pressure reducing valve. A body includes a hollow portion, an inlet portion and an outlet portion for flow of a fluid and has an internal space. A cylinder is installed inside the hollow portion and has at least two holes formed in its wall. An piston is movable along the inner side of the cylinder and adjusts opening rate of the holes according to a fluid pressure difference between an inlet portion and an outlet portion.

Abstract: An improved golf cart mainly comprises a pair of grips, a grip-supporting-rod, a fixing seat for grip supporting rod, an upper-fixing-member for golf bag, a collapsible frame, a pair of wheels and a set of wheel supporting means. The grip can receive a golf ball and a plurality of golf tees. The upper-fixing-member for holding a golf bag can receive a plurality of golf balls. The inclination of the grip-supporting-rod is adjustable. The central components of the collapsible frame are disposed in a hollow supporting rod both to prevent the user from being hurt and to increase the component's durability. The wheels and its supporting means are simplified as well as easy for operation.

Abstract: An improved golf cart mainly comprises a pair of grips, a grip-supporting-rod, a fixing seat for the grip supporting rod, an upper-fixing-member for a golf bag, a collapsible frame, a pair of wheels and a set of wheel supports. The grip can receive a golf ball and a plurality of golf tees. The upper-fixing-member for holding a golf bag can receive a plurality of golf balls. The inclination of the grip-supporting-rod is adjustable. The central components of the collapsible frame are disposed in a hollow supporting rod both to prevent the user from being hurt and to increase the component's durability. The wheels and its supports are simplified as well for easy operation.