| 摘要 |
PURPOSE: A cover of a drain pipe is provided to easily assemble, to have good drain efficiency and low production cost, not to generate noise. CONSTITUTION: The installation method of a cover of a drain pipe has the steps of: forming a side block main body(1) by concrete; establishing current channel(1a) whose cutaway section is U-shape having circular arc shaped current bottom(1a); forming the length(L1) of the side block main body(1) to be 2000mm; forming the upper part of the current channel(1a) as an opening; arranging a cover(2) through a slit(3) extends to lengthwise at both sides of left and right in parallel; installing two cover plate(4,4), a supporting lever(6) projected to support the cover plate(4,4) to improve the drainage efficiency and also to reduce the production expenses.
|
