| 摘要 |
A portable automatic pump is provided to reduce a number of components, production costs, and the total size for conveniently carrying without an additional relief valve. A portable automatic pump includes an operation motor, an oil tank, a pump body(30), a piston, a first intake check valve, a second intake check valve, exhaust check valves, a solenoid valve, and a controller. The pump body includes an intake hole connected to the oil tank at one side and an exhaust hole extracting a hydraulic fluid sucked at the intake hole at the other side. A low pressure pumping space(33) and a high pressure pumping space(34) are installed between the intake hole and the exhaust hole.
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