Deep slope drainage device

Abstract

The utility model relates to the field of side slope drainage, in particular to a deep side slope drainage device which comprises a drainage pipe, the drainage pipe comprises an inner pipe, water permeable holes are formed in the inner pipe, an outer pipe connected with the inner pipe in a sleeving mode is arranged on the outer side of the inner pipe, and a strip-shaped protection cover is arranged on the outer pipe; the conical head is arranged at the end of the drainage pipe, the connecting end of the conical head is connected with the inner cylinder and the outer cylinder, water filtering holes are formed in the water inlet end of the conical head, and the conical head is filled with a water filtering assembly. The drainage pipe is divided into the inner pipe and the outer pipe, the inner pipe and the outer pipe are connected with the conical head, after the drainage pipe is inserted into the deep slope, the drainage device is fixed through the outer pipe, the inner pipe can be pulled away by disconnecting the inner pipe and the conical head, and the drainage device can be conveniently maintained and cleaned; meanwhile, the adverse effect on the stability of the soil structure is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of slope drainage, and particularly relates to a deep slope drainage device. BACKGROUND

[0002] At present, the internal moisture of the deep slope is usually discharged by the drainage pipe. During use, the drainage pipe is prone to be blocked by soil particles, roots and other sundries due to long-term contact with soil. The blockage will cause the drainage capacity of the drainage pipe to decrease, increase the water pressure inside the slope, and further increase the risk of slope instability.

[0003] Therefore, the drainage pipe needs to be cleaned regularly. The traditional drainage pipe structure is wrapped with geotextile and has a drainage hole. The drainage pipe structure is prone to be blocked. The drainage pipe buried in the deep slope penetrates into the interior of the slope, and the maintenance and cleaning work is relatively difficult. In addition, repeated insertion and extraction of the drainage pipe will increase the gap between the drainage pipe and the buried hole, causing the internal moisture of the slope to seep out from the gap between the drainage pipe and the buried hole, and causing the instability of the soil structure. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a deep slope drainage device to improve the anti-blocking and anti-leakage performance of the drainage device.

[0005] The present application provides a deep slope drainage device, which comprises:

[0006] The drainage pipe comprises an inner tube, the inner tube is provided with a water-permeable hole, the outer side of the inner tube is provided with an outer tube which is sleeved with the inner tube, and the outer tube is provided with a strip-shaped protective cover.

[0007] The conical head is arranged at the end of the drainage pipe, the connecting end of the conical head is connected with the inner cylinder and the outer cylinder respectively, the water inlet end of the conical head is provided with a water filter hole, and the inside of the conical head is filled with a water filter assembly.

[0008] In some embodiments, the water-permeable hole is circular, and is arranged on one side of the inner tube and along the length of the inner tube.

[0009] In some embodiments, the end of the inner tube is provided with an inner thread.

[0010] In some embodiments, the strip-shaped protective cover is arranged on one side of the outer tube and along the length of the outer tube, and the size of the strip-shaped protective cover is greater than the size of the water-permeable hole.

[0011] In some embodiments, the end of the outer tube is provided with an outer thread.

[0012] In some embodiments, the side of the outer tube is provided with a fixed steel nail along the length of the outer tube.

[0013] In some embodiments, a first filter layer is arranged between the inner tube and the outer tube.

[0014] In some embodiments, the water filtering assembly comprises water filtering sandstone filled in the interior of the water inlet end of the conical head, a second filter layer is arranged between the water filtering sandstone and the water inlet end, and a filter screen is arranged between the water filtering sandstone and the connecting end of the conical head.

[0015] In some embodiments, the particle size of the water filtering sandstone gradually decreases from the water inlet end to the connecting end.

[0016] In some embodiments, the connecting end of the conical head is provided with a connecting outer thread and a connecting inner thread.

[0017] The beneficial effects of the present application are as follows:

[0018] By splitting the drain pipe into an inner pipe and an outer pipe, the inner pipe and the outer pipe are respectively connected with the conical head, after being inserted into the deep slope, the drain device is fixed through the outer pipe, the inner pipe can be pulled out by disconnecting the connection between the inner pipe and the conical head, which is convenient for the maintenance and cleaning of the drain device, and at the same time, it will not cause adverse effects on the stability of the soil structure.

[0019] The water filtering hole in the conical head and the water filtering assembly can effectively intercept small sandstone impurities and prevent clogging. The strip-shaped protective cover in the outer pipe can prevent large rock blocks from damaging the inner pipe, thereby improving the drainage performance and service life of the drainage structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a drain device provided by an embodiment of the present application.

[0021] Figure 2 is a structural schematic diagram of a conical head provided by an embodiment of the present application.

[0022] Figure 3 is a cross-sectional structural schematic diagram of a conical head provided by an embodiment of the present application.

[0023] Figure 4 is a structural schematic diagram of a drain pipe provided by an embodiment of the present application.

[0024] Figure 5 is a front end cross-sectional schematic diagram of a drain pipe provided by an embodiment of the present application.

[0025] Figure 6 is a structural schematic diagram of a drain device provided by an embodiment of the present application.

[0026] LIST OF REFERENCE NUMBERS

[0027] 1, outer pipe; 11, fixed steel nail; 12, strip-shaped protective cover;

[0028] 2, inner pipe; 21, water permeable hole; 22, inner pipe outer thread; 23, first filter layer;

[0029] 3, conical head; 31, water filtering hole; 32, connecting external thread; 33, connecting internal thread; 34, filter screen; 35, second filter layer; 36, water filtering gravel;

[0030] 4, slope soil. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0032] It should be noted that although the functional modules are divided in the device schematic diagram, and the logical sequence is shown in the flowchart, in some cases, the steps shown or described can be executed in a manner different from the module division in the device or the sequence in the flowchart. The terms "first", "second", etc. in the specification and claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0033] The present application provides a deep slope drainage device, as shown in Figure 1 which comprises a drainage pipe and a conical head 3 connected to one end of the drainage pipe to facilitate insertion of the drainage pipe into the slope soil 4, and the drainage pipe is the drainage main body.

[0034] As shown in Figure 2 , the water inlet end of the conical head 3 is conical, and a cavity is provided inside, the water inlet end is provided with a circular water filtering hole 31 arranged around it, the water filtering hole 31 is in communication with the cavity, and a water filtering assembly for filtering soil water is provided in the cavity. The connecting end of the conical head 3 is cylindrical, and the outer side is provided with a connecting external thread 32, and the inner side is provided with a connecting internal thread 33.

[0035] As shown in Figure 3 , the water filtering assembly comprises water filtering gravel 36 filled in the inside of the water inlet end of the conical head 3, a second filter layer 35 is provided between the water filtering gravel 36 and the water filtering hole 31 of the water inlet end, and a filter screen 34 is provided between the water filtering gravel 36 and the connecting end of the conical head 3.

[0036] In this embodiment, the second filter layer 35 performs preliminary filtration on the soil water entering the conical head 3, the water filtering gravel 36 performs secondary filtration, the particle size of the water filtering gravel 36 decreases from the water inlet end to the connecting end to achieve the best filtering effect, and the pore size of the filter screen 34 is smaller than the particle size of the water filtering gravel 36, which prevents impurities from entering and causing blockage while draining.

[0037] The drainage pipe can be easily installed into the slope soil 4 by using the conical head 3. The second filter layer 35 combined with the filter sand 36 can effectively intercept small sand and other impurities, preventing clogging. Meanwhile, the metal filter screen 34 is harder than the geotextile used as the anti-clogging mechanism, and has a longer service life.

[0038] As shown in Figure 4 and Figure 5 , the drainage pipe is a cylindrical structure, which includes an outer pipe 1 and an inner pipe 2. The outer pipe 1 is provided with a strip-shaped protective cover 12. The inner pipe 2 is sleeved inside the outer pipe 1 and is provided with water-permeable holes 21.

[0039] The strip-shaped protective cover 12 is arranged on the upper surface of the outer pipe 1 and extends along the transverse direction of the outer pipe 1. A plurality of strip-shaped protective covers 12 are arranged at intervals along the length of the outer pipe 1 to prevent large particles from damaging the inner pipe 2.

[0040] The lower surface of the outer pipe 1 is provided with fixed steel nails 11 with an inclined angle of 42°, which can enhance the connection strength between the outer pipe 1 and the slope soil 4. Meanwhile, the fixed steel nails 11 are driven into the deep soil below, which can effectively ensure the stability of the drainage device. One end of the fixed steel nail 11 is connected with the outer pipe 1, and the other end is provided with a conical spike for easy driving into the slope soil 4. The end of the outer pipe 1 is provided with an outer pipe internal thread for connecting with an external thread 32.

[0041] The water-permeable holes 21 are arranged on the upper surface of the inner pipe 2 and are arranged at intervals in multiple groups along the length of the inner pipe 2. Each group includes a plurality of water-permeable holes 21 arranged at intervals along the transverse direction of the inner pipe 2. The size of the water-permeable hole 21 is smaller than that of the strip-shaped protective cover 12. A first filter layer 23 is arranged between the outer pipe 1 and the inner pipe 2 to filter the soil water, and can be replaced when clogged. The end of the inner pipe 2 is provided with an inner pipe external thread 22 for connecting with an internal thread 33.

[0042] In this embodiment, the first filter layer 23 and the second filter layer 35 can both use geotextile.

[0043] As shown in Figure 6 , when the drainage pipe is installed, it is buried in the slope by drilling. When rainwater infiltrates into the slope, the second filter layer 35 and the filter sand 36 in the conical head 3 filter the sand and other impurities in the front section to prevent clogging of the drainage pipe during water infiltration. The first filter layer 23 between the inner pipe 2 and the outer pipe 1 filters the sand and other impurities to prevent clogging of the drainage pipe during water infiltration. For the long-term operation of the drainage pipe, when the drainage capacity of the drainage pipe is significantly reduced, maintenance and cleaning are needed. The inner pipe 2 is pulled out by rotating, then the first filter layer 23 is cleaned and replaced, and then the inner pipe 2 is inserted back and rotated to be installed into the conical head 3.

[0044] The application splits the drain pipe into an inner pipe 2 and an outer pipe 1, the inner pipe 2 and the outer pipe 1 are connected with a conical head 3 respectively, after being inserted into a deep slope, the drain device is fixed through the outer pipe 1, the inner pipe 2 can be separated by disconnecting the connection between the inner pipe 2 and the conical head 3, which is convenient for the maintenance and cleaning of the drain device, and meanwhile, the soil structure stability is not adversely affected.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing the embodiments of the application only and is not intended to be limiting of the application.

Claims

1. A deep slope drainage device, characterized by, The utility model relates to a water filter, comprising: a drain pipe including an inner tube provided with water-permeable holes, and an outer tube sleeved outside the inner tube and provided with a strip-shaped protective cover; a conical head provided at an end of the drain pipe, connected with the inner tube and the outer tube at its connecting end, provided with water filtering holes at its water inlet end, and filled with a water filtering assembly inside.

2. The deep slope drainage device according to claim 1, wherein The water-permeable holes are circular, arranged on one side of the inner tube and along the length of the inner tube.

3. The deep slope drainage device according to claim 2, wherein, The end of the inner tube is provided with an inner thread.

4. The deep slope drainage device according to claim 1, wherein The strip-shaped protective cover is arranged on one side of the outer tube and along the length of the outer tube, and the size of the strip-shaped protective cover is larger than that of the water-permeable holes.

5. The deep slope drainage device according to claim 4, wherein The end of the outer tube is provided with an outer thread.

6. The deep slope drainage device according to claim 5, wherein The outer tube is provided with a fixing nail along the length of the outer tube.

7. The deep slope drainage device according to claim 1, wherein The inner tube and the outer tube are provided with a first filter layer.

8. The deep slope drainage device of claim 1, wherein, The water filtering assembly includes water filtering sandstones filled inside the water inlet end of the conical head, a second filter layer arranged between the water filtering sandstones and the water filtering holes of the water inlet end, and a filter screen arranged between the water filtering sandstones and the connecting end of the conical head.

9. The deep slope drainage device according to claim 8, wherein, The particle size of the water filtering sandstones decreases from the water inlet end to the connecting end.

10. The deep slope drainage device according to claim 8, wherein, The connecting end of the conical head is provided with a connecting outer thread and a connecting inner thread.

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