Fallwell

Abstract

This invention relates to a downhole, comprising a water collection basin, a perforated plate, and multiple connecting sleeves. The water collection basin has a water collection section, to which the perforated plate is connected and communicates. The perforated plate has a plate body, a water passage opening at the center of the plate body, and a breakable block surrounding the water passage and connected to the plate body via a detachable structure. The breakable block can be detached from the plate body to form another water passage. Multiple connecting sleeves are connected below the perforated plate. One connecting sleeve surrounds the water passage and can be used to connect a pipe of one size. Another connecting sleeve surrounds the breakable block and the connecting sleeve adjacent to the water passage, and can be used to connect a pipe of another size. This allows for the selection of water passages and the connection of different sized pipes according to the actual diameter of the drainage pipe on site, reducing the need for adapters and replacement of downholes of different specifications, increasing construction flexibility, and reducing costs.

Claims

1. A drain well, comprising: a water collection basin having a water collection section; a through-hole plate connected to and communicating with the water collection section of the water collection basin; the through-hole plate having a plate body, a water passage opening at the center of the plate body, and a knock-opening block surrounding the water passage opening, the knock-opening block being connected to the plate body by a detachment structure, the knock-opening block being detachable from the plate body to form another water passage opening; the plate body having an upper plate portion and a lower plate portion opposite to each other; a plurality of connecting cylinders connected to the lower part of the through-hole plate; one of the connecting cylinders surrounding the water passage opening and for connecting a pipe of a certain size; and another connecting cylinder surrounding the knock-opening block and surrounding the connecting cylinder adjacent to the water passage opening, for connecting a pipe of another size.

2. The drain well as described in claim 1, wherein, The separation structure includes a separation groove and a piece of connected flesh located on one side of the separation groove.

3. The drain well as described in claim 2, wherein, The meat is attached to the middle of the upper and lower parts of the plate, or to either the upper or lower part of the plate.

4. The drain well as described in claim 1, wherein, The chipping block is flush with, recessed into, or protruding from the upper part of the disc.

5. The drain well as described in claim 1, wherein, The chipping block is flush with, recessed into, or protruding from the lower part of the disc.

6. The drain well as described in claim 1, wherein, The water passage hole in the middle is lower than the water passage hole formed after the broken piece is removed.

7. The drain well as described in claim 1, wherein, There is a mark on the broken piece.

8. The drain well as described in claim 1, wherein, The through-hole plate has multiple knock-opening blocks located at different radial positions, and the drain well has three or more connecting tubes, with two adjacent connecting tubes surrounding the knock-opening blocks at different radial positions, and each connecting tube can be connected to a pipe of different sizes.

9. The drain well as described in claim 8, wherein, The water passage formed after the innermost chipped block breaks off is lower than the water passage formed after the outermost chipped block breaks off.

10. The drain well as described in claim 8, wherein, The adjacent inner and outer perimeter blocks are located in different circumferential directions.

11. The drain well as described in claim 1, wherein, The water collection basin has multiple water collection slopes, multiple guide surfaces respectively provided on one side of the water collection slopes, and a lower connecting part connected to the through hole plate.

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