Abstract: An automatic water-saving device has a housing, a lower holder, an upper holder, an actuation rod, a blocker, a first resilient member, and multiple positioning balls. The actuation rod, the blocker, the first resilient member, and the positioning balls are disposed between the lower and the upper holders. The lower and upper holders are disposed in the housing. Each of the lower and the upper holders has multiple holes for water flowing. The upper holder further has multiple mouths for water flowing. The automatic water-saving device has the advantage of automatically recovering the water discharge capacity back to small volume after manually adjusting the water discharge capacity to large volume. Hence, the water-saving function of the automatic water-saving device is enhanced and ensured, and the automatic water-saving device is convenient in use.

Abstract: A water-saving device for a faucet has a main body. A flow-controlling member and a movable flow-blocking member are mounted in the main body. The main body has multiple receiving holes that receive respectively multiple positioning balls. A driving member movably receives an outer surface of the main body. When the faucet is open, the flow-controlling member and the flow-blocking member facilitate a water flow that is adjustable and stable. A user pulls the driving member downwards for increasing the water flow as required. The positioning balls are mounted in the driving member. The flow-blocking member that is pressed by the water flow moves downwards. When the faucet is closed, the flow-blocking member restores to an original position, thereby automatically adjusting the faucet to a minimum water flow for next use and economizes the water usage.

Abstract: A water-saving device for a faucet has a main body. A flow-controlling member and a movable flow-blocking member are mounted in the main body. The main body has multiple receiving holes that receive respectively multiple positioning balls. A driving member movably receives an outer surface of the main body. When the faucet is open, the flow-controlling member and the flow-blocking member facilitate a water flow that is adjustable and stable. A user pulls the driving member downwards for increasing the water flow as required. The positioning balls are mounted in the driving member. The flow-blocking member that is pressed by the water flow moves downwards. When the faucet is closed, the flow-blocking member restores to an original position, thereby automatically adjusting the faucet to a minimum water flow for next use and economizes the water usage.