Pedal water pump

• Main Authors: LIANCHAO WANG, HUANCHUN WANG
• Format: Patent
• Language: English
• Published: 13.10.2004
• Edition: 7
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

A petal-typed water pump includes a pump body and is characterized in that the pump body is internally provided with a spring and a ring-shaped piston; an upper surface of the piston is fixed with a pedal rod; a lower part of the pump body is provided with a water inlet and a water outlet; the water inlet and the water outlet are provided with check valves; an end part of the water outlet pipe which is connected with the water outlet is a flat shape. The spring of the utility model is arranged in the interior of the pump body; therefore, the stroke of the water pump piston is shortened when in work, which is just suitable for the height of step lifting when treading and extremely convenient; as the utility model presses the end of the water outlet pipe into a flat shape, thus increasing the water outlet resistance and the washing area, therefore, the water outlet pressure and the washing strength are increased; only 100ml water is required for clean washing, and the water-saving purpose is reached; furthermore, as the utility model adopts a built-in spring, the pump body can be buried underground for heat preservation and anti-freezing by lengthening the pedal rod in winters, therefore, the utility model can be conveniently applied to outdoor in north winters extremely.