| 摘要 |
The present invention relates to a device (100) for painting the inner surface of a pipe (P) by being inserted into the pipe (P) and moving along the pipe (P). The present invention includes a body part (110), a spray gun (120) which is installed on the rear end of the body part (110) to spray paints while rotating, a driving unit (130) which is installed on the body part (110) to roll in contact with the inner surface of the pipe (P), and a winch (140) which connects the body part (110) by a wire (W) and pulls the body part (110) to move the body part (110). According to the present invention, painting quality is improved and the quantity of the used paints is reduced by performing a painting operation while pulling the painting apparatus at a constant speed by the winch. The quality of an operation is standardized. |
