Manual Inflator Pump

Instruction
Inflator is a commonly used tool that can infuse and supply air to many items,like air filling bag,air balloon and so on.There are two kinds of manual inflators:Unidirectional inflator and Bidirectional inflator.Manual inflator is very convenient and easy to operate.Now it has been used widely in daily life.

Structure
Manual inflator is made up of barrel,axis connected piston,cover body and reversing shaft.The cover body is consist of lid with air intake and venthole, cover board with air exchanging chamber.The air exchanging chamber is comprised of inlet chamber and discharge chamber which are separated by isolation channel.The baseboards of the inlet and discharge chamber are setted several valves.The reversing shaft is connected by the valves of inlet and discharge chamber.The structure is simple and practical.

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Principle
When using inflator,put the nozzle to the air valves of the item.The air valve only allows the air into the inflator and prevent the air out of the item.There is a interspace between the piston and wall.Pull upward the piston,the volume of the air below piston reduces,the pressure increases,so the air will not leak to the upper part of the piston.Then press the piston,when the air pressure is so intense that can open the valves of the item.The compressed air was pressed to the item.At the same time,the air come into the upper parts of the piston.And it goes in circles.

Advantages and features
1.Multiple selections,reliable application.
2.Simple structure,easy to operate.
3.Light weight,small volume,facilitate carry.
4.Fast air inflation,high efficient.