| 摘要 |
PURPOSE: An inspection box installation device is provided to conveniently transfer and install an attached facility of a gas pipe in an excavation construction field and a shifting construction field regardless of the size of the attached facility of the gas pipe. CONSTITUTION: An inspection box installation device comprises a main block(11), a wing block(12) for both sides, a work protrusion(13), a separation preventing protrusion(14), a full thread bolt(15), a round rod(16), a circular steel plate(18), and a handle(19). Both sides of the wing block are connected to both ends of the main block and comprise a protrusion unit on the upper part in order to be rotated. The work protrusion and the separation preventing protrusion are installed on the wing block at regular intervals. The full thread bolt is installed on both sides of the wing block and is controlled at rotational intervals. The round rod is installed on the upper part of both sides of the wing block and connects the full thread bolt and the wing block. The circular steel plate is installed on the end of a full thread screw at regular intervals, and the handle is installed on the end of the circular steel plate.
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