| 摘要 |
PURPOSE: A synchronized telescopic elevation system is provided to support more load than conventional ways only with a mechanical structure which uses electricity as a main power source. CONSTITUTION: An elevation part(3) comprises first and second cylinders(21,22,23,24,25), first and second housings(31,32,33,34,35), and first and second drive nut assemblies(41,42,43,44). The first cylinder is connected to a power source. The second cylinder is formed inside the first cylinder. The first housing is separately formed from the exterior of the first cylinder. The second housing is formed on the exterior of the first housing. The first and second drive nut assemblies are fixed and coupled to the top of the first and second housings. |
