| 摘要 |
PURPOSE: An intermediate transmission lifting jack is provided to enhance the convenience in a repair or maintenance work of a large-scale vehicle by allowing an intermediate transmission to be ascended or descended when the intermediate transmission are installed into or removed from the lower part of the vehicle. CONSTITUTION: A lifting jack structure comprises a lower support(2), an upper support, a cylinder(4), and a hand pump(6). The lower support(1) has a plurality of rollers(1). The cylinder(4) is installed between the lower support(2) and upper support in order to ascend or descend the upper support. The hand pump(6) is connected to the cylinder(4) via a hose(5) in order to operate the cylinder(4). The lower support(2) and upper support is connected to each other by means of a X-shaped rod(8). The X-shaped rod(8) is ascended or descended about a hinge axis(7). A plurality of brackets(9) are installed on the upper surface of the upper plate. An intermediate transmission is rested on the brackets(9).
|
