| 摘要 |
PURPOSE: A PVC double-wall pipe integrated with connector is provided to prevent the horizontal and vertical separation the connector, which is integrally connected, from a stopping groove and protruding part. CONSTITUTION: A PVC double-wall pipe integrated with connector comprises first and second cylinder-shaped wall pipes(110,120). The first wall pipe has a hollow interior [hollow portion]. A convex part(122) and concave part of the second wall pipe are successively and consecutively formed outside the first wall pipe. A connector(200) is integrally shaped in the leading end of the PVC double-wall pipe by a molding device. The connector is included of a vertical part and a horizontal part. The vertical part is fitted in the concave part between the leading end convex part and next convex part of the second wall pipe. The horizontal part is extended from the vertical part in a horizontal direction.
|
