Geopipe with partial perforated structure

Abstract

A geopipe with partial perforated structure is disclosed. The geopipe includes a water permeable portion with a plurality of perforated through holes arranged on an upper arc surface of the geopipe for permitting liquid outside the geopipe permeating into the geopipe through the perforated through holes. A water draining portion formed on a lower arc surface from the first end through the second end of the geopipe for draining the water permeated from the perforated through holes of the water permeable portion of the geopipe. The geopipe is further covered with a net layer, or a reinforced layer thereon.

Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a drain pipe, and more particularly to a geopipe with partial perforated structure.

[0003] 2. Description of the Prior Art

[0004] Underground pipes carrying water or liquids are typically installed to drain fluids into the ground when the liquid pipe transport is completed. These pipe drains are normally installed beneath the ground and typically are surrounded by a loose gravel or pebble to aid in collecting and diffusing the drained liquids into the ground.

[0005] Various drains pipe structures are developed in prior art to meet the requirements as described above. An example of a prior art pipe was disclosed in U.S. Pat. No. 4,589,798 issued May 20, 1986, entitled “Drainage system”. This prior art patent disclosed a drainage system for disbursing water supplied by a drain pipe including an enclosure positionable in water permeable material, its top edge generally flush with terrain, and said enclosure having a generally perforated top, an opening in the bottom and an opening in a side wall. Water received by the enclosure through an opening in the side wall and is generally spread and thereby gradually dispersed around the enclosure and residual water in the enclosure is gradually leaked off through the opening in the bottom. The water passing down through said drain pipe generally fills said enclosure and thereafter flows upward and then outward from said enclosure and is dispersed around said enclosure, and finally, residual water filling said enclosure passes down through said opening in said base and is dissipated.

[0006] Another example of the prior art pipe was disclosed in U.S. Pat. No. 4,490,072. The drainage device includes a stiff plastic core having rigid raised portions and valleys therebetween is oriented vertically and tangentially to a drain pipe which has axially spaced raised annular portions contacting the core and annular recesses with slots to provide passageways for ground water into the pipe. A permeable plastic membrane is warped around the core and the pipe to prevent fill from filling the passageways so defined.

[0007] Another example of the prior art pipe was disclosed in U.S. Pat. No. 5,637,211, entitled pipe drain diffusion bag system and kit. A liquid diffuser drain bag for pipe drains comprising a liquid permeable woven nylon bag with an opening sized and structured to fit over and around an underground pipe drain; said bag sized to hold a plurality of loosely packed light weight rigid particles, and ties to secure the bag opening around the pipe drain.

[0008] It is noted that none of those prior art patents disclosed a geopipe with perforated structure. There thus remains a need for a drain pipe with permeable function which maintains its water collection and ground dispersion ability.

SUMMARY OF THE INVENTION

[0009] Accordingly, the primary object of the present invention is to provide a pipe drain system with partial perforated structure.

[0010] Another object of the present invention is to provide a permeable geopipe with a number of through holes arranged on the geopipe.

[0011] To achieve the above objects, the geopipe in accordance with a preferable embodiment of the present invention is provided with a water permeable portion comprising a plurality of perforated through holes arranged on an upper arc surface from the first end through the second end of the elongate pipe for permitting the liquid outside the elongate pipe permeating into the elongate pipe through the perforated through holes; and a water draining portion formed on a lower arc surface from the first end through the second end of the elongate pipe for draining the water permeated from the perforated through holes of the water permeable portion of the elongate pipe.

[0012] Preferably, the geopipe of the present invention may be further covered with a net layer or a reinforced layer thereon. A plurality of annular rib may surround the geopipe and spaced from each other. The through holes arranged on the geopipe may be in a form of oval-shape, circle-shape, cross-shape, rectangle-shaped, or square-shape manner.

[0013] The present invention will be apparent to those skilled in the art by reading the following description of preferred embodiments thereof, with reference to the accompanying drawings, in which:

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG. 1 is a perspective view of the geopipe in accordance with a first embodiment of the present invention;

[0015] FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

[0016] FIG. 3 is a cross-sectional view showing the geopipe of the present invention is buried in ground;

[0017] FIG. 4 is a perspective view showing a net layer is further covered on the geopipe of FIG. 1;

[0018] FIG. 5 is a perspective view showing a reinforced layer is further covered on the geopipe of FIG. 1;

[0019] FIG. 6 is a perspective view of the geopipe in accordance with a second embodiment of the present invention;

[0020] FIG. 7 is a perspective view of the geopipe in accordance with a third embodiment of the present invention;

[0021] FIG. 8 is a perspective view of the geopipe in accordance with a fourth embodiment of the present invention; and

[0022] FIG. 9 is a perspective view of the geopipe in accordance with a fifth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] With reference to the drawings and in particular to FIGS. 1 through 2, a geopipe constructed in accordance with a first embodiment of the present invention is shown. The geopipe of the present invention is provided with an elongate pipe 1 for draining liquids, such as water. The elongate pipe 1 has a suitable length with a first end 1a and a second end 1b. The elongate pipe 1 is provided with a water draining portion 11 formed on the lower arc surface from the first end 1a through the second end 1b of the elongate pipe 1. Particularly, the elongate pipe 1 is provided with a water permeable portion 12 formed on the upper arc surface from the first end 1a through the second end 1b of the elongate pipe 1. Preferably, the area ratio of the water draining portion 11 and the water permeable portion 12 is about 2:3 to 1:2. Actual perforated portions can be manufactured to meet the project-specific requirements.

[0024] With reference to FIG. 2 which is a cross sectional view taken along line A-A of FIG. 1, the water permeable portion 12 of the elongated pipe 1 is formed with a plurality of perforated through holes 2 from the first end 1a through the second end 1b of the elongate pipe 1, so that the liquid outside the elongate pipe 1 may be permeated into the elongate pipe 1 through the perforated through holes 2 and then drained by the water draining portion 11.

[0025] A number of elongate pipes 1 may be connected by connectors to form an elongate drain pipe. The connections may be made by either mechanical connector or heat-fusion. The elongate drain pipe composed of a number of elongate pipes may be buried in ground for draining water. Preferably, the elongate drain pipe is buried in ground consisting of a topsoil layer 3, a gravel layer 4, and an undersoil layer 5, as shown in FIG. 3. With reference to FIG. 4, it is a perspective view showing that a net layer 6 may be further fully covered on the elongate pipe 1. By means of the net layer 6, it can prevent objects outside the elongate pipes 1 from blocking the perforated through holes 2 formed on the elongate pipes 1.

[0026] With reference to FIG. 5, it is a perspective view showing that a reinforced layer 7 may be further fully covered on the elongate pipe 1. By means of the reinforced layer 7, the mechanical compressive strength of the elongate pipes 1 may be effectively improved. The reinforced layer 7 may be formed by a plurality of annular ribs surrounding the geopipe and spaced from each other.

[0027] The perforated through holes 2 arranged on the elongate pipe 1 of the first embodiment are in a form of circle-shaped through hole, as shown in FIG. 1. FIG. 7 is a perspective view of the elongate pipe 1 in accordance with a second embodiment of the present invention. The structure of this embodiment is similar to that of the first embodiment described above, so that the same reference numbers used in the previous drawing will be used to refer to the same or like parts. However, the perforated through holes arranged on the elongate pipe 1 are in a form of oval-shaped through hole 21.

[0028] FIG. 8 is a perspective view of the elongate pipe 1 in accordance with a third embodiment of the present invention. The structure of this embodiment is also similar to that of the first embodiment described above. However, the perforated through holes arranged on the elongate pipe 1 are in a form of square-shaped or rectangle-shaped through hole 22.

[0029] FIG. 9 is a perspective view of the elongate pipe 1 in accordance with a forth embodiment of the present invention. The structure of this embodiment is also similar to that of the first embodiment described above. However, the perforated through holes arranged on the elongate pipe 1 are in a form of cross-shaped through hole 23.

[0030] In application, the geopipe of the present invention may be applied to football and baseball field drainage, sports field drainage, retaining walls drainage construction, retaining walls drainage finished, foundation drainage, roadway underdrains, agricultural applications, and sanitary underdrains, etc.

[0031] Although the present invention has been described with respect to the preferred embodiments, it is contemplated that a variety of modifications, variations and substitutions may be done without departing from the scope of the present invention that is intended to be defined by the appended

Claims

1. A geopipe for draining liquids, comprising:

an elongate pipe having a first end and a second end;

a water permeable portion comprising a plurality of perforated through holes arranged on an upper arc surface from the first end through the second end of the elongate pipe for permitting the liquid outside the elongate pipe permeating into the elongate pipe through the perforated through holes; and

a water draining portion formed on a lower arc surface from the first end through the second end of the elongate pipe for draining the water permeated from the perforated through holes of the water permeable portion of the elongate pipe.

2. The geopipe as claimed in claim 1, wherein the elongate pipe is further covered with a net layer thereon.

3. The geopipe as claimed in claim 1, wherein the elongate pipe is further covered with a reinforced layer thereon.

4. The geopipe as claimed in claim 3, wherein the reinforced layer comprises a plurality of annular ribs surrounding the geopipe and spaced from each other.

5. The geopipe as claimed in claim 1, wherein the perforated through hole is in a form of oval-shaped through hole.

6. The geopipe as claimed in claim 1, wherein the perforated through hole is in a form of circle-shaped through hole.

7. The geopipe as claimed in claim 1, wherein the perforated through hole is in a form of cross-shaped through hole.

8. The geopipe as claimed in claim 1, wherein the perforated through hole is in a form of rectangle-shaped through hole.

9. The geopipe as claimed in claim 1, wherein the perforated through hole is in a form of square-shaped through hole.