Manual pump
A manual pump includes a pumping unit and a nozzle unit. The pumping unit includes an air bag, a valve housing connected to the air bag, and a sealing ring located on and around the valve housing. The nozzle unit includes a shell connected to an inflatable object and made with an opening, a shield connected to the shell and made with an aperture, a plunger inserted in the opening and the aperture, a sealing ring located on and around the plunger, and a spring located on and around the plunger and compressed between the plunger and the shield. The aperture is in communication of air with the opening, and the opening includes a tapered portion with a wall in contact with the sealing ring of the pumping unit when the valve housing is inserted in the shell.
F F F F F F
F04B F04B F04B F04B F04B F04B
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Chi-Yuan
Chang