| 摘要 |
A pig is provided to be flexibly made to be bent of the pig by more installing the wrist of the new quality of the material between spacer and scraper disc, and the connection axle possible to be smoothly bent. A pig comprises the front head(100) in which the front through-hole passing through center is formed of the hemi spherical grain; the back tail(200) which is faced in the front head while the rearward through-hole(210) corresponding to the front through-hole is formed of the hemi spherical grain; the spacer(300) including the front through-hole and the first through-hole(310) corresponding to the rearward through-hole is arranged as plurality between the front head and back tail; the scraper disc(400) including the second through-hole(410) which is arranged between the spacer and is corresponded to the first through-hole of the spacer and adheres closely to the inner circumference of the floating piping; the front brush (300a) having the length which is installed at the outer circumference of the spacer and is bigger than the external diameter of the scraper disc; the wrist(500) of the new quality of the material in which the third through-hole(510) corresponding to the first through-hole and the second through-hole is formed and which is arranged between the spacer or the scraper disc; the connecting member(600) including the inlet port(610) which is behind arranged and is connected in the rearward through-hole of the back tail; and the connection axle(700) of the new quality of the material which passes through the rearward through-hole from the front through-hole and the other end part is connected in the connecting member to a screw nut while adhering closely to the front side of the front head.
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