A park low-lying rainwater rapid infiltration device

Abstract

This utility model discloses a rapid rainwater infiltration device for low-lying areas in industrial parks, comprising a perforated pipe with a drill bit detachably connected to its bottom end and an end cap at its top. The perforated pipe contains multiple layers of filter material with gradually decreasing particle size, arranged from bottom to top. Several permeable holes are evenly distributed on the sidewalls of the perforated pipe. An elastic sealing plug is provided inside the end cap, with its lower end extending into the perforated pipe to seal the filter layers. An annular pressure plate is pressed onto the end cap and fixed to the hardened ground layer by bolts. A grid cover is also placed on the end cap. This utility model is easy to construct and can directly drain rainwater from low-lying areas into deep soil or a rainwater pipe network, achieving rapid water reduction. The load-bearing structure at the top of the device can withstand vehicle pressure, and the built-in filter layer has an anti-clogging function, blocking silt while ensuring permeability, resulting in high drainage efficiency and low modification costs.

Description

Technical Field

[0001] This utility model relates to the field of rainwater infiltration technology, and in particular to a rapid rainwater infiltration device for low-lying areas in industrial parks. Background Technology

[0002] The paved road surface forms a natural waterproof barrier, preventing seepage. Rainwater can only slowly flow into the drainage outlets due to the surface slope. However, in some recessed drainage areas on the road shoulders, the rainwater grates are easily clogged by fallen leaves, garbage, and other debris, significantly reducing drainage efficiency and causing localized rainwater accumulation. This type of water accumulation significantly impacts the daily movement of park employees and is difficult to modify. Currently, it can only be mitigated through manual sweeping and other measures. There are currently no suitable rainwater rapid infiltration devices that can be installed on the paved road surface or connected to the underground pipe network to achieve rapid rainwater infiltration, making modification extremely difficult. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rapid rainwater infiltration device for low-lying areas in industrial parks, which aims to solve the technical problems existing in the prior art where rainwater is blocked from infiltrating by the hardened layer, resulting in low drainage efficiency through the drainage outlet and high difficulty in modifying existing hardened road surfaces.

[0004] The technical solution of this utility model is: a rapid rainwater infiltration device for low-lying areas in industrial parks, comprising a perforated pipe, a drill bit detachably connected to the bottom end of the perforated pipe, and an end cap provided at the top end of the perforated pipe; multiple filter layers with gradually decreasing particle size are arranged sequentially from bottom to top inside the perforated pipe, and several permeable holes are evenly distributed on the side wall of the perforated pipe; an elastic sealing soft plug is provided inside the end cap, and the lower end of the elastic sealing soft plug extends into the perforated pipe to seal the filter layers; an annular pressure plate is pressed onto the end cap, and the annular pressure plate is fixedly connected to the ground hardening layer by bolts; and a grid cover plate is also placed on the end cap.

[0005] Furthermore, in this utility model, both the perforated tube and the end cap are made of stainless steel or glass fiber reinforced nylon material, and the end cap is fixedly connected to the perforated tube.

[0006] Furthermore, the drill bit in this utility model is made of tungsten carbide alloy material, and the drill bit is threadedly connected to the perforating pipe.

[0007] Furthermore, the perforated pipe of this invention is provided with a crushed stone layer, a gravel layer, and a coarse sand layer in sequence from bottom to top.

[0008] Furthermore, in this invention, permeable geotextile is provided between the crushed stone layer and the gravel layer, and between the gravel layer and the coarse sand layer.

[0009] Furthermore, the perforated tube of this invention is provided with a water-permeable membrane on both its inner and outer walls, and the water-permeable membranes on the inner and outer walls are respectively located on both sides of the water-permeable hole.

[0010] Furthermore, the elastic sealing soft plug described in this utility model includes a soft plug body, the soft plug body has an opening that extends vertically through the middle, and a pressure mesh is provided inside the opening.

[0011] Furthermore, the annular pressure plate in this utility model is made of galvanized steel plate, and the upper surfaces of the annular pressure plate, the end cap, and the grid cover are flush.

[0012] This utility model has the following advantages compared with the prior art:

[0013] This utility model features a built-in alloy drill bit, which, driven by a drilling rig, can directly drill through the hardened layer into the soil layer without prior road surface breaking. Drilling and pipe installation can be completed simultaneously, making construction convenient. After using this device, rainwater in low-lying areas of the park can directly penetrate the road surface and enter the deep soil or rainwater pipe network, achieving the purpose of quickly reducing water accumulation. The load-bearing structure at the top of the device can withstand vehicle pressure, and the built-in filter layer has an anti-clogging function, blocking mud and sand while ensuring water permeability, resulting in high drainage efficiency and low renovation costs. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention.

[0015] Figure 2 for Figure 1 A magnified view of part A in the middle.

[0016] Figure 3 This is a schematic diagram of the installation of this utility model.

[0017] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0018] The components are: 1. Perforated pipe; 2. Drill bit; 3. End cap; 4. Crushed stone layer; 5. Gravel layer; 6. Coarse sand layer; 7. Permeable geotextile; 8. Permeable hole; 9. Permeable membrane; 10. Elastic sealing soft plug; 1001. Soft plug body; 1001a. Opening; 1002. Pressure mesh; 11. Annular pressure plate; 12. Bolt; 13. Grating cover plate; 14. Guide sleeve; a. Hardened layer; b. Soil layer. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] Example:

[0021] The accompanying drawings illustrate a specific embodiment of the present invention for a rapid rainwater infiltration device for low-lying areas in industrial parks. Figure 1 It mainly includes a perforated pipe 1, which is the main permeation structure; the bottom end of the perforated pipe 1 is detachably connected to a drill bit 2, which can be connected to the perforated pipe 1 by thread, making it easy to disassemble and replace. The drill bit 2 is used to drill through the hardened layer a; the top end of the perforated pipe 1 is provided with an end cap 3, which is fixedly connected to the perforated pipe 1, which helps to increase the overall strength.

[0022] Specifically, the perforated tube 1 and end cap 3 are made of stainless steel or glass fiber reinforced nylon, and the drill bit 2 is made of tungsten carbide alloy. The device has high overall strength and is easy to install.

[0023] The perforated pipe 1 contains, from bottom to top, a layer of crushed stone 4, a layer of gravel 5, and a layer of coarse sand 6, with gradually decreasing particle sizes. The crushed stone layer 4 is the bottom layer, with crushed stone particles of 30-50mm, which supports and distributes the load, and also prevents sediment buildup at the bottom of the pipe. The gravel layer 5 is the middle high-speed flow guiding layer, with gravel particles of 10-20mm, which forms large-pore drainage channels. The coarse sand layer 6 is the top layer, with coarse sand particles of 2-4mm, which prevents clogging, blocking sediment while ensuring permeability.

[0024] Permeable geotextile 7 is provided between the crushed stone layer 4 and the gravel layer 5, and between the gravel layer 5 and the coarse sand layer 6. The permeable geotextile 7 can separate the filter layers and allow water to pass through, making the layers distinct.

[0025] The perforated pipe 1 has several permeable holes 8 evenly distributed on its sidewall, through which filtered rainwater seeps out. A permeable membrane 9 is provided on both the inner and outer walls of the perforated pipe 1, located on either side of the permeable holes 8. The permeable membrane 9 can be fixed to the inner and outer walls of the perforated pipe 1 by adhesive bonding. By providing the permeable membrane 9, the filter material and filtered impurities inside the perforated pipe 1, as well as soil and impurities outside the perforated pipe 1, can be prevented from entering the permeable holes 8, thus affecting the water permeability.

[0026] Combination Figure 1 , Figure 2 The end cap 3 is also equipped with an elastic sealing soft plug 10, the lower end of which extends into the perforated tube 1 to seal the filter layer. The elastic sealing soft plug 10 specifically includes a soft plug body 1001, which is inserted into the end cap 3. The upper end of the soft plug body 1001 is tightly fitted to the inner wall of the end cap 3, and the lower end of the soft plug body 1001 extends into the perforated tube 1 and is tightly fitted to the inner wall of the perforated tube 1. The soft plug body 1001 has a through-hole 1001a in its middle, allowing rainwater to pass through. A pressure mesh 1002 is installed inside the opening 1001a to prevent the filter material of the filter layer from spilling out during construction.

[0027] In addition, an annular pressure plate 11 is press-fitted onto the end cap 3. The annular pressure plate 11 is made of galvanized steel plate, which has high strength, good load-bearing capacity, and can withstand vehicle pressure. The annular pressure plate 11 is fixedly connected to the hardened ground layer a by bolts 12 to prevent displacement.

[0028] The center of the end cap 3 is also covered by a grid cover plate 13, and the upper surfaces of the grid cover plate 13, the end cap 3, and the annular pressure plate 11 are flush.

[0029] When installing the device of this utility model, as follows: Figure 3 As shown, the guide sleeve 14 can be used to first locate the low-lying water accumulation point, then the perforated pipe 1 is aligned with the guide sleeve 14 and inserted downwards. Next, the drilling rig drives the perforated pipe 1 to rotate and drill downwards, so that the drill bit 2 of the perforated pipe 1 penetrates the hardened layer a to the soil layer b. Preferably, the outer surface of the perforated pipe 1 has a spiral groove for discharging drilled sand and gravel. After the perforated pipe 1 has drilled to a certain depth in the soil layer b, the lower end of the perforated pipe 1 is located inside the soil layer b. At this point, the guide sleeve 14 can be removed. The guide sleeve 14 consists of two hinged semi-circular sleeves, which can be opened and removed to continue construction until the perforated pipe 1 completely enters the hardened layer a and the soil layer b. After the end cap 3 contacts the ground, as... Figure 4 As shown, an annular pressure plate 11 is then pressed onto the end cap 3, and the annular pressure plate 11 is fixedly connected to the hardened layer a by bolts 12 to prevent displacement. Finally, a grid cover plate 13 is placed on the center of the end cap 3.

[0030] After using this device, rainwater from low-lying areas of the park will enter the perforated pipe 1 through the grid cover 13, be filtered, and then seep out through the permeable holes 8 into the deeper soil, achieving the purpose of quickly reducing water accumulation. In practical applications, this device can also be directly inserted into the rainwater pipe network and connected to it, so that rainwater can be directly discharged into the rainwater pipe network.

[0031] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A rapid rainwater infiltration device for low-lying areas in industrial parks, characterized in that: The device includes a perforated pipe (1), with a drill bit (2) detachably connected to the bottom end of the perforated pipe (1) and an end cap (3) at the top end of the perforated pipe (1). The perforated pipe (1) has multiple filter layers with gradually decreasing particle size arranged from bottom to top, and several water-permeable holes (8) are evenly distributed on the side wall of the perforated pipe (1). An elastic sealing soft plug (10) is provided inside the end cap (3), and the lower end of the elastic sealing soft plug (10) extends into the perforated pipe (1) to seal the filter layer. An annular pressure plate (11) is pressed on the end cap (3), and the annular pressure plate (11) is fixedly connected to the ground hardening layer (a) by bolts (12). A grid cover plate (13) is also covered on the end cap (3).

2. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 1, characterized in that: Both the perforated tube (1) and the end cap (3) are made of stainless steel or glass fiber reinforced nylon material, and the end cap (3) is fixedly connected to the perforated tube (1).

3. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 1, characterized in that: The drill bit (2) is made of tungsten steel alloy material and is threadedly connected to the perforating pipe (1).

4. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 1, characterized in that: The perforated pipe (1) contains, from bottom to top, a crushed stone layer (4), a gravel layer (5), and a coarse sand layer (6).

5. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 4, characterized in that: Permeable geotextile (7) is provided between the crushed stone layer (4) and the gravel layer (5), and between the gravel layer (5) and the coarse sand layer (6).

6. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 1, characterized in that: The perforated tube (1) is provided with a water-permeable membrane (9) on both the inner and outer walls, and the water-permeable membrane (9) on the inner and outer walls is located on both sides of the water-permeable hole (8).

7. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 1, characterized in that: The elastic sealing soft plug (10) includes a soft plug body (1001), the soft plug body (1001) has an opening (1001a) that runs vertically through the middle, and a pressure mesh (1002) is provided inside the opening (1001a).

8. The rapid rainwater infiltration device for low-lying areas in industrial parks according to claim 1, characterized in that: The annular pressure plate (11) is made of galvanized steel plate, and the upper surfaces of the annular pressure plate (11), the end cap (3), and the grid cover plate (13) are flush.

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