A prefabricated sedimentation tank for slope engineering

Abstract

The present invention relates to a prefabricated sedimentation tank for slope engineering, which comprises an outer cylinder, an inner cylinder and a cover plate; the inner cylinder is connected to a drainage ditch, the inner cylinder is detachably arranged in the outer cylinder, the inner cylinder is connected to the outer cylinder, the outer cylinder is connected to a municipal drainage pipe, the center lines of the inner cylinder and the outer cylinder coincide, and the cover plates are detachably connected to the outer cylinder and the inner cylinder; a first tray is arranged in the inner cylinder, the first tray covers the bottom of the inner cylinder, a second tray is arranged in the outer cylinder, the second tray is sleeved outside the inner cylinder and the second tray covers the bottom of the outer cylinder, and the first tray and the second tray can be separated from the sedimentation tank. The inner cylinder and the outer cylinder of the prefabricated sedimentation tank are prefabricated and installed, and the prefabricated sedimentation tank avoids temporary production on site, improves efficiency, and shortens the cycle. Moreover, the detachably installed inner cylinder and outer cylinder avoid the staff from entering the bottom of the sedimentation tank for cleaning, which improves work efficiency and reduces labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of slope engineering, in particular to a prefabricated sedimentation tank for slope engineering. Background Art

[0002] Sedimentation tanks are usually used to remove solid particulate matter with a density greater than that of water, thus purifying the water quality to a certain extent. In slope engineering, intercepting ditches and drainage ditches are usually set at a certain distance above the retaining wall to gather water flowing through the slope surface to prevent rainwater from seeping in and scouring the slope foot. The water flow gathered by the intercepting ditches and drainage ditches usually carries sediment to varying degrees. When dealing with sediment-containing water flow, some are directly discharged to the surrounding surface, some are directly discharged to municipal pipelines, and some are discharged to municipal pipelines after simple sedimentation, depending on the location of the project, the degree of infrastructure improvement, and relevant regulations. If these water flows are not precipitated or the sedimentation effect is poor, it is very easy to cause siltation and blockage in the pipeline.

[0003] In the prior art, even if a sedimentation tank is set up to match the drainage of the slope project, there are often the following three shortcomings: First, the on-site construction adopts brick or reinforced concrete structure, the construction efficiency is low, and the construction period is long; second, the sedimentation tank is easily affected by the surrounding soil pressure and frost heave, which makes the structural side walls and bottom plate of the sedimentation tank easy to crack and seep water; third, the sediment settled at the bottom of the sedimentation tank usually requires staff to enter the bottom of the sedimentation tank to clean and transport, which is time-consuming and labor-intensive. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a prefabricated sedimentation tank for slope engineering, which solves the technical problems of low construction efficiency and inconvenient sediment cleaning.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the prefabricated sedimentation tank for slope engineering of the present invention comprises: an outer cylinder, an inner cylinder and a cover plate;

[0008] The inner cylinder is connected to the drainage ditch, the inner cylinder is detachably arranged in the outer cylinder, the inner cylinder is connected to the outer cylinder, the outer cylinder is connected to the municipal drainage pipe, the center lines of the inner cylinder and the outer cylinder coincide, and the cover plate is detachably connected to the outer cylinder and the inner cylinder;

[0009] A first tray is arranged in the inner cylinder, and the first tray covers the bottom of the inner cylinder. A second tray is arranged in the outer cylinder, and the second tray is sleeved outside the inner cylinder and covers the bottom of the outer cylinder. Both the first tray and the second tray can be detached from the sedimentation tank.

[0010] Optionally, the inner cylinder and the outer cylinder are both cylindrical structures, the first tray is a circular tray, the second tray is an annular tray, the diameter of the circular tray is equal to the inner diameter of the inner cylinder, the inner diameter of the annular tray is the same as the outer diameter of the inner cylinder, and the outer diameter of the annular tray is equal to the inner diameter of the outer cylinder.

[0011] Optionally, a water inlet pipe is provided at one end of the inner cylinder close to the cover plate, and the water inlet pipe passes through the outer cylinder and is connected to the drainage ditch.

[0012] Optionally, at least one communication port is provided at one end of the inner cylinder close to the cover plate, the vertical dimension of the communication port is larger than the vertical dimension of the water inlet pipe, and the communication port is connected with the outer cylinder.

[0013] Optionally, a water outlet is provided at one end of the outer cylinder close to the cover plate, the water outlet is connected to a municipal drainage pipe, and the vertical dimension of the water outlet is greater than the vertical dimension of the connecting port.

[0014] Optionally, a filter is provided at both the communication port and the water outlet, and the mesh number of the filter at the water outlet is greater than the mesh number of the filter at the communication port.

[0015] Optionally, the top ends of the water inlet pipe, the connecting port and the water outlet are all arranged on a horizontal plane at the same height, the water inlet pipe, the connecting port and the water outlet are spaced apart at an angle not less than 90°, and the vertical dimension of the water inlet pipe is < the vertical dimension of the connecting port < the vertical dimension of the water outlet.

[0016] Optionally, the outer cylinder comprises a bottom plate and an outer cylinder wall, and the bottom plate and the outer cylinder wall are connected;

[0017] The inner cylinder comprises an inner cylinder wall, the inner cylinder wall is connected to the bottom plate, and the circular tray and the annular tray are both placed on the bottom plate.

[0018] Optionally, a sand cushion layer is provided below the base plate, and the base plate is placed on the sand cushion layer.

[0019] Optionally, a pair of first handles are provided on the edge of the circular tray, and the circular tray can be separated from the inner cylinder by the first handles to clean the solids deposited on the circular tray;

[0020] And / or, a pair of second handles are provided on the edge of the annular tray; the annular tray can be separated from the outer cylinder by the second handles to clean the solids deposited on the annular tray.

[0021] (III) Beneficial effects

[0022] The beneficial effects achieved by the present invention are as follows: the present invention provides a prefabricated sedimentation tank for slope engineering, the inner cylinder and the outer cylinder of the prefabricated sedimentation tank are both prefabricated, and the outer cylinder and the inner cylinder of the sedimentation tank can be directly installed in a foundation pit for installing the sedimentation tank. The prefabricated sedimentation tank avoids the need for temporary on-site construction by staff, thereby improving the construction efficiency of the sedimentation tank, shortening the work cycle, and reducing the labor intensity of staff.

[0023] Moreover, the inner cylinder and the outer cylinder are detachably mounted so that the sedimentation tank does not need to be cleaned by staff members at the bottom of the sedimentation tank during use. The silt accumulated in the sedimentation tank can be removed simply by disassembling the circular tray of the inner cylinder and the annular tray of the outer cylinder. This is convenient and quick, and it also effectively improves work efficiency and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A top view of the overall structure of the prefabricated sedimentation tank for slope engineering of the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the prefabricated sedimentation tank for slope engineering of the present invention at AA;

[0026] Figure 3 It is a cross-sectional schematic diagram of the overall structure of the prefabricated sedimentation tank for slope engineering of the present invention at point BB;

[0027] Figure 4 It is a structural schematic diagram of a circular tray of a prefabricated sedimentation tank for slope engineering of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the annular tray of the prefabricated sedimentation tank for slope engineering of the present invention.

[0029] [Description of Reference Numerals]

[0030] 1: outer cylinder; 11: annular tray; 111: second handle; 12: water outlet; 13: bottom plate; 14: outer cylinder wall;

[0031] 2: inner cylinder; 21: round tray; 211: first handle; 22: water inlet pipe; 23: connecting port; 24: inner cylinder wall;

[0032] 3: Cover plate;

[0033] 4: Sand cushion layer. DETAILED DESCRIPTION

[0034] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] like Figure 1 As shown, the present invention provides a prefabricated sedimentation tank for slope engineering, which includes: an outer tube 1, an inner tube 2 and a cover plate 3; the inner tube 2 is connected to the drainage ditch, the inner tube 2 is detachably arranged in the outer tube 1, the inner tube 2 is connected to the outer tube 1, the outer tube 1 is connected to the municipal drainage pipe, the center lines of the inner tube 2 and the outer tube 1 coincide, and the cover plate 3 is detachably connected to the outer tube 1 and the inner tube 2; a first tray is arranged in the inner tube 2, the first tray covers the bottom of the inner tube 2, and a second tray is arranged in the outer tube 1, the second tray is sleeved outside the inner tube 2 and the second tray covers the bottom of the outer tube 1, and the first tray and the second tray can be detached from the sedimentation tank.

[0036] In this embodiment, the inner cylinder 2 and the outer cylinder 1 of the prefabricated sedimentation tank for slope engineering are prefabricated, and the outer cylinder 1 and the inner cylinder 2 of the sedimentation tank can be directly installed in the foundation pit for installing the sedimentation tank. The prefabricated sedimentation tank avoids the need for temporary on-site construction by the staff, improves the construction efficiency of the sedimentation tank, shortens the working cycle, and reduces the labor intensity of the staff. At the same time, the inner cylinder 2 and the outer cylinder 1 can be detachably installed, so that the sedimentation tank does not need to be cleaned by the staff entering the bottom of the sedimentation tank during use. The sedimentation tank can be cleared by only splitting the first tray of the inner cylinder 2 and the second tray of the outer cylinder 1. It is convenient and fast, and it also effectively improves the work efficiency and reduces the labor intensity. The setting of the cover plate 3 can prevent the sedimentation tank from being blocked by the external sediment entering the sedimentation tank during use.

[0037] In a preferred embodiment, the inner tube 2 and the outer tube 1 are both cylindrical structures, the first tray is a circular tray 21, and the second tray is an annular tray 11. The diameter of the circular tray 21 is equal to the inner diameter of the inner tube 2, the inner diameter of the annular tray 11 is the same as the outer diameter of the inner tube 2, and the outer diameter of the annular tray 11 is equal to the inner diameter of the outer tube 1. In this embodiment, the cylindrical sedimentation tank can evenly balance the surrounding soil pressure, has good stability, and is not easy to be damaged or cracked. The first tray and the second tray are prefabricated into a circular tray 21 and annular tray 11 respectively, and when the circular tray 21 and the annular tray 11 are covered in the inner tube 2 and the outer tube 1, it is not easy to produce dead corners, thereby avoiding the accumulation of mud and sand impurities in the corners. Alternatively, in other embodiments, the inner tube 2 and the outer tube 1 can also be square cylindrical structures.

[0038] See also Figure 2 The inner tube 2 is provided with a water inlet pipe 22 at one end close to the cover plate 3, and the water inlet pipe 22 passes through the outer tube 1 and is connected to the drainage ditch. The inner tube 2 is also provided with at least one communication port 23 at one end close to the cover plate 3, and the vertical dimension of the communication port 23 is larger than the vertical dimension of the water inlet pipe 22, and the communication port 23 is connected to the outer tube 1. The outer tube 1 is provided with a water outlet 12 at one end close to the cover plate 3, and the water outlet 12 is connected to the municipal drainage pipe, and the vertical dimension of the water outlet 12 is larger than the vertical dimension of the communication port 23.

[0039] In this embodiment, the water in the drainage ditch enters the inner cylinder 2 of the sedimentation tank through the water inlet pipe 22, and after the first sedimentation in the inner cylinder 2, enters the outer cylinder 1 through the connecting port 23 opened on the inner cylinder 2, and after the second sedimentation in the outer cylinder 1, flows into the municipal drainage pipe through the water outlet 12. Through the arrangement of the above-mentioned water inlet pipe 22, connecting port 23 and water outlet 12, the water in the drainage ditch is discharged into the municipal drainage pipe connected thereto through the water outlet 12 after two sedimentations in the inner cylinder 2 and the outer cylinder 1 after entering the sedimentation tank, thereby preventing the water with silt impurities in the drainage ditch from directly flowing into the municipal drainage pipe, effectively removing the silt impurities in the water, and preventing pipe blockage.

[0040] In a preferred embodiment, a filter screen is provided at both the connection port 23 and the water outlet 12, and the mesh number of the filter screen at the water outlet 12 is greater than the mesh number of the filter screen at the connection port 23. In this embodiment, the setting of the filter screen can further prevent the silt impurities in the water body from entering the pipeline, and also prevent the silt deposited at the bottom of the sedimentation tank from being brought into the municipal drainage pipeline under the impact of the water flow.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the top ends of the water inlet pipe 22, the connecting port 23 and the water outlet 12 are all arranged on the horizontal plane at the same height, and the water inlet pipe 22, the connecting port 23 and the water outlet 12 are arranged at intervals of not less than 90° on the horizontal plane at the same height, and the vertical dimension of the water inlet pipe 22 is less than the vertical dimension of the connecting port 23 and less than the vertical dimension of the water outlet 12.

[0042] Embodiment 1: In a preferred embodiment, two opposite communication ports 23 are provided at one end of the inner cylinder 2 near the cover plate 3. In this embodiment, the water inlet pipe 22 and the water outlet 12 are both arranged at an angle of 90° with the communication port 23. In this arrangement, after the water flows into the inner cylinder 2 through the water inlet pipe 22, the water will hit the side wall of the inner cylinder 2 opposite to the water inlet pipe 22, so that the speed of the water flow drops rapidly, and the flow of the water flow out of the inner cylinder 2 increases, thereby prolonging the sedimentation time of the water flow in the inner cylinder 2 and improving the sedimentation efficiency. When the water flows out of the inner cylinder 2 and enters the outer cylinder 1, the water outlet 12 arranged at 90° from the communication port 23 also further drops the speed of the water flow rapidly, and the flow of the water flow out of the outer cylinder 1 increases, further improving the sedimentation efficiency of the prefabricated sedimentation tank. The vertical dimension of the water inlet pipe 22 is less than the vertical dimension of the communication port 23 and less than the vertical dimension of the water outlet 12, which effectively avoids the occurrence of water backflow.

[0043] Example 2: In another embodiment, a connecting port 23 is provided at one end of the inner tube 2 close to the cover plate 3. In this embodiment, the water inlet pipe 22, the water outlet 12 and the connecting port 23 are arranged at an interval of 120° from each other. The width of the connecting port 23 in this embodiment is not less than the sum of the widths of the two connecting ports 23 in Example 1, so as to avoid the water flow in the inner tube 2 from being unable to be discharged in time when the water flow velocity is too high.

[0044] See also Figure 2 The outer cylinder 1 includes a bottom plate 13 and an outer cylinder wall 14, and the bottom plate 13 and the outer cylinder wall 14 are connected; the inner cylinder 2 includes an inner cylinder wall 24, and the inner cylinder wall 24 and the bottom plate 13 are connected. The circular tray 21 and the annular tray 11 are both placed on the bottom plate 13. A sand cushion layer 4 is arranged below the bottom plate 13, and the bottom plate 13 is placed on the sand cushion layer 4.

[0045] In this embodiment, the circular tray 21 and the annular tray 11 placed on the bottom plate 13 can be lifted out of the sedimentation tank by external force when there is a lot of sediment, and restored to their original positions after the sediment impurities are cleaned. The prefabricated sedimentation tank is provided with a detachable tray, so that the prefabricated sedimentation tank does not need workers to enter the bottom of the sedimentation tank for cleaning during use, which reduces labor intensity and improves work efficiency.

[0046] like Figure 4 and Figure 5As shown, a pair of first handles 211 are provided on the edge of the circular tray 21, and the circular tray 21 can be separated from the inner cylinder 2 by the first handles 211 to clean the solids precipitated on the circular tray 21; and / or a pair of second handles 111 are provided on the edge of the ring tray 11, and the ring tray 11 can be separated from the outer cylinder 1 by the second handles 111 to clean the solids precipitated on the ring tray 11. In addition, the inner cylinder 2, the outer cylinder 1, the circular tray 21 and the ring tray 11 are all made of PVC material.

[0047] In this embodiment, the circular tray 21 is separated from the bottom plate 13 by the first handle 211, and the annular tray 11 is separated from the bottom plate 13 by the second handle 111. The provision of the first handle 211 and the second handle 111 enables the circular tray 21 and the annular tray 11 to be separated from the sedimentation tank in a balanced and stable manner, thereby preventing the circular tray 21 and the annular tray 11 from tipping over during the separation process, and preventing the circular tray 21 and the annular tray 11 from leaking mud and sand impurities onto the bottom plate 13 due to the shaking caused by the uneven force on the circular tray 21 and the annular tray 11. In addition, the inner cylinder 2, the outer cylinder 1, the circular tray 21 and the annular tray 11 of the prefabricated sedimentation tank are all made of high-strength PVC material, and the high-strength PVC material includes a PVC material layer, and two layers of supporting steel sheets are arranged inside the PVC material layer. The two layers of supporting steel sheets are fixedly connected by multiple supporting steel rods, and multiple threaded holes are provided on the surface of the supporting steel sheets. Multiple screws threadedly connected to the threaded holes are inserted into the top and bottom surfaces of the PVC material layer. A support structure consisting of a support steel sheet and a support steel rod is arranged inside the PVC material layer to form a strong support for the PVC material layer, so that the structural strength of the PVC material is sufficient to support the prefabricated sedimentation tank. The sedimentation tank made of the PVC material has a stable structure, is less affected by soil pressure and frost heave, and has a long service life.

[0048] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0051] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A prefabricated sedimentation tank for slope engineering, characterized in that: The prefabricated sedimentation tank comprises: an outer cylinder, an inner cylinder and a cover plate; The inner cylinder is connected to the drainage ditch, the inner cylinder is detachably arranged in the outer cylinder, the inner cylinder is connected to the outer cylinder, the outer cylinder is connected to the municipal drainage pipe, the center lines of the inner cylinder and the outer cylinder coincide, and the cover plate is detachably connected to the outer cylinder and the inner cylinder; A first tray is arranged in the inner cylinder, and the first tray covers the bottom of the inner cylinder. A second tray is arranged in the outer cylinder, and the second tray is sleeved outside the inner cylinder and covers the bottom of the outer cylinder. Both the first tray and the second tray can be separated from the sedimentation tank. A water inlet pipe is arranged at one end of the inner cylinder close to the cover plate, and the water inlet pipe passes through the outer cylinder and is connected to the drainage ditch; The inner cylinder is also provided with at least one communication port at one end close to the cover plate, the vertical dimension of the communication port is larger than the vertical dimension of the water inlet pipe, and the communication port is communicated with the outer cylinder.

2. The prefabricated sedimentation tank according to claim 1, characterized in that: The inner cylinder and the outer cylinder are both cylindrical structures, the first tray is a circular tray, and the second tray is an annular tray. The diameter of the circular tray is equal to the inner diameter of the inner cylinder, the inner diameter of the annular tray is the same as the outer diameter of the inner cylinder, and the outer diameter of the annular tray is equal to the inner diameter of the outer cylinder.

3. The prefabricated sedimentation tank according to claim 1, characterized in that: A water outlet is arranged at one end of the outer cylinder close to the cover plate, the water outlet is connected to a municipal drainage pipe, and the vertical dimension of the water outlet is greater than the vertical dimension of the connecting port.

4. The prefabricated sedimentation tank according to claim 3, characterized in that: The communicating port and the water outlet are both provided with filter screens, and the mesh number of the filter screen at the water outlet is greater than the mesh number of the filter screen at the communicating port.

5. The prefabricated sedimentation tank according to claim 3, characterized in that: The top ends of the water inlet pipe, the connecting port and the water outlet are all arranged on a horizontal plane at the same height, and the water inlet pipe, the connecting port and the water outlet are spaced apart at an angle not less than 90°, and the vertical dimension of the water inlet pipe is less than the vertical dimension of the connecting port and less than the vertical dimension of the water outlet.

6. The prefabricated sedimentation tank according to claim 2, characterized in that: The outer cylinder comprises a bottom plate and an outer cylinder wall, and the bottom plate and the outer cylinder wall are connected; The inner cylinder comprises an inner cylinder wall, the inner cylinder wall is connected to the bottom plate, and the circular tray and the annular tray are both placed on the bottom plate.

7. The prefabricated sedimentation tank according to claim 6, characterized in that: A sand cushion layer is arranged below the bottom plate, and the bottom plate is placed on the sand cushion layer.

8. The prefabricated sedimentation tank according to claim 2, characterized in that: A pair of first handles are provided on the edge of the circular tray, and the circular tray can be separated from the inner cylinder by the first handles to clean the solids deposited on the circular tray; And / or, a pair of second handles are provided on the edge of the annular tray; the annular tray can be separated from the outer cylinder by the second handles to clean the solids deposited on the annular tray.

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