Pneumatic manual double dynamical jack

Pneumatic manual double dynamical jack includes the base, hydraulic pressure jacking device, and manual supercharging device unloads the fuel tap, the overflow valve, portable ring sets up hydraulic pressure jacking device installation station groove in the middle part of its characterized in that, base, and base one end sets up manual supercharging device installation station groove, and the base other end sets up pneumatic supercharging device installation station groove, and manual supercharging device installs on manual supercharging device station groove, and pneumatic supercharging device installs on pneumatic supercharging device installs the station groove, and hydraulic pressure jacking device is installed on the station groove is installed to hydraulic pressure jacking device, set up the oil feed way in the base, the oil return way the utility model relates to an air is power or artifical manual for power, the hydraulic jack of the multiple tonnage that the two compatible optional used, the utility model discloses compact structure is difficult to the oil leak, the safety and stability