| 摘要 |
PURPOSE: A pipe inside blasting machine is provided to easily and precisely perform a blasting work by controlling the height of a roller guide according to the diameter of a pipe. CONSTITUTION: A pipe inside blasting machine is composed of a nozzle(1) inserted into the inside of a pipe, a reduction motor(2) connected to the nozzle, an air control unit(7) mounted to one side of the reduction motor, a feed shaft(3) connected to the reduction motor, a cemented sleeve(8) inserted into the inside of the feed shaft, a first guide bracket(9) fit into the feed shaft and contacting with one surface of the reduction motor, a second guide bracket(9a) fit into the feed shaft and moving along the feed bracket, a plurality of roller guides(5) mounted to the guide brackets, a roller(10) mounted to the roller guides, an adjusting handle(4) fit into the feed shaft and contacting with one surface of the second guide bracket, and a hose connector(6) mounted to the feed shaft.
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