| 摘要 |
A hand pump comprises a head, a cylinder, a piston rod, a first handle, and a second handle. The head includes a valve-engaging portion for engaging with a valve of an article to be inflated. An end of the cylinder is connected to the head. A piston is securely mounted to an end of the piston rod and reciprocatingly received in the cylinder. The first handle is securely attached to other second end of the piston rod that extends beyond the other end of the cylinder. The second handle is attached to the head to provide an auxiliary grip.
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