| 摘要 |
A pneumatically driven hydraulic pump in accordance with the present invention is comprised of a cylindrical body, a front end cap, a rear end cap, a division wall, a piston, a control valve, a pneumatic valve, an air bladder and a pedal. The pneumatically piston and the air bladder also connected to the air source are used to quickly pump hydraulic fluid to an external hydraulic lifting device. Consequently, a heavy object can be lifted or lowered quickly.
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