Site News  |   Monitor Keywords  |   Monitor Archive  |   Organizer  |   Account Info  |

Water pumping device by using pressure differential

Water pumping device by using pressure differential description/claims

1. Field of the Invention

The present invention relates to a pumping device and, more particularly, to a water pumping device for pumping water.

2. Description of the Related Art

A conventional water pump is used to pump water from a water storage tank into a water tower that is located above the water storage tank. Thus, the water from the water storage tank is delivered into the water tower which supplies the water into the house for use with the people. However, the conventional water pump consumes a lot of electric power, thereby wasting the energy. In addition, the conventional water pump stops operating when the electric power supply is interrupted, so that the water from the water storage tank cannot be pumped into the water tower, thereby causing inconvenience to the user.

In accordance with the present invention, there is provided a water pumping device, comprising a water storage tank, a water tower located at a height greater than that of the water storage tank, a pressure differential pump mounted between the water storage tank and the water tower to deliver water contained in the water storage tank into the water tower, and two pumping pipes each connected between the water tower and the pressure differential pump.

The pressure differential pump includes two opposite cylinders separated from each other, two pistons each mounted in a respective cylinder to define the respective cylinder into an air pressure chamber and a water storage chamber and each movable in the respective cylinder reciprocally to introduce the water in the water storage tank into the water storage chamber of the respective cylinder and to compress the water in the water storage chamber of the respective cylinder through a respective pumping pipe into the water tower, a connecting rod mounted between the pistons to move with the pistons so that the pistons are movable simultaneously, two equivalent-diameter retractable air pipes each expandably mounted in the air pressure chamber of a respective cylinder and each having a first end mounted on the respective cylinder and a second end mounted on the respective piston, and two air control valves each mounted on a respective cylinder and each connected to an expandable air compartment of a respective air pipe to introduce an ambient air into the air compartment of the respective air pipe to produce a pressurizing mode to expand the respective air pipe to push the respective piston toward the water storage chamber of the respective cylinder.

The primary objective of the present invention is to provide a water pumping device by using a pressure differential.

Another objective of the present invention is to provide a water pumping device, wherein the air pipes are expanded by the compressed air from the air control valves, and the two pistons are movable reciprocally in the cylinders by driving of the air pipes to introduce the water in the water storage tank through the pumping pipes into the water tower in an alternating manner so as to pump and supply the water into the water tower successively.

A further objective of the present invention is to provide a water pumping device, wherein the water in the water tower falls downward through the water outlet pipe to impact the hydraulic generator so as to provide an electric power generating function.

A further objective of the present invention is to provide a water pumping device, wherein the compressed air is supplied by the pressure compressor or air tank which uses the waste or residual gas from a factory.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

FIG. 1 is a front cross-sectional view of a water pumping device in accordance with the preferred embodiment of the present invention.

FIG. 2 is a schematic operational view of the water pumping device as shown in FIG. 1.

FIG. 3 is a schematic operational view of the water pumping device as shown in FIG. 2.

FIG. 4 is a schematic operational view of the water pumping device as shown in FIG. 3.

FIG. 5 is a front cross-sectional view of a water pumping device in accordance with another preferred embodiment of the present invention.

FIG. 6 is a front cross-sectional view of a water pumping device in accordance with another preferred embodiment of the present invention.

• Provisional Patent
• Utility Patent

• What Is a Patent?
• What Is a Trademark or Servicemark?
• What Is a Copyright?
• Patent Laws