| 摘要 |
PURPOSE: A vibration absorption apparatus for a foot for a communication base station terminal is provided, which maintains a balance of a rack without regard to a flatness of an installation surface and also absorbs a vibration applied from the external, by having a vibration absorption structure within a height control apparatus. CONSTITUTION: A height control apparatus is constituted to maintain a horizontality of a terminal housing and also to absorb a vibration, using a supporting apparatus. The supporting apparatus comprises a support plate(140) installed on an installation surface(130) of a communication base station terminal and an elevation bolt(120) connected to a center of a top surface of the support plate. A box type buffer housing(1) is installed at each edge of a bottom surface of a rack frame(100). An accommodation groove(10) and a subsidiary accommodation groove(30) and a horizontal accommodation groove(40) are formed in an inner space of the buffer housing. The elevation bolt is inserted into the accommodation groove, and a fixing bolt is connected to the subsidiary accommodation groove. A nut strip(50) sliding along the fixing bolt is installed on an outer circumference of the elevation bolt, and an up/down buffer spring(60,70) buffering the terminal are wound on the outer circumference of the fixing bolt. |
