An indoor drainage ditch shunting drainage method matched with a hollow terrace

Abstract

The present application relates to the field of indoor drainage, and specifically discloses an indoor drainage ditch shunting drainage method matched with a hollow floor, comprising the following steps: S1, a main drainage ditch and a secondary drainage ditch are arranged on the surface of the hollow floor at intervals, wherein the cross-sectional size of the main drainage ditch is larger than that of the secondary drainage ditch; S2, the runoff on the floor surface is guided to the main drainage ditch through a flow guide structure, and the accumulated water permeated into the hollow layer of the floor is guided to the secondary drainage ditch; the present application can bear large-flow rainwater drainage through the main drainage ditch, and can handle permeated water through the secondary drainage ditch, thereby avoiding overload of a single drainage facility; the flexible adjustment of the flow ratio of the main / secondary ditch to 1:1 can be realized through an adjustable shunting gate, so as to adapt to different rainfall intensities and regional drainage requirements and reduce the risk of accumulated water; the V-shaped flow guide weir with a top surface 15 mm lower than the floor and a bottom surface with an included angle of 45° and a length accounting for 90% of the main ditch can ensure rapid directional flow of water and reduce the phenomenon of overland flow.

Description

Technical Field

[0001] This invention belongs to the field of indoor drainage, specifically a method for diverting drainage through indoor drainage ditches in conjunction with hollow flooring. Background Technology

[0002] Hollow core flooring is a type of flooring that incorporates a hollow layer (such as an elevated floor or underground space) within the building structure. It is commonly used in logistics centers, warehousing facilities, and underground parking lots. Its indoor drainage system must simultaneously handle surface runoff and infiltration water from the hollow core to ensure structural safety and normal function.

[0003] Traditional systems often rely on a single drainage ditch, which cannot effectively separate rainwater from the floor surface and infiltration water from the hollow layer. For example, during heavy rain, the main drainage ditch may be overloaded due to excessive flow, leading to water accumulation or even backflow into the hollow layer. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an indoor drainage ditch diversion and drainage method that is compatible with hollow flooring, thereby solving the problem that traditional systems in the prior art rely on a single drainage ditch and cannot effectively divert rainwater from the floor surface and infiltrated water from the hollow layer.

[0005] A method for diverting indoor drainage ditches in conjunction with hollow flooring includes the following steps: S1. Main drainage ditches and secondary drainage ditches are set at intervals on the surface of the hollow floor, wherein the cross-sectional dimension of the main drainage ditch is larger than that of the secondary drainage ditch. S2. The surface runoff of the floor is guided to the main drainage ditch through the diversion structure, while the water that has seeped into the hollow layer of the floor is guided to the secondary drainage ditch. S3. Dynamically adjust the water flow distribution ratio of the main and secondary drainage ditches according to the drainage needs of different areas of the floor, so that large flow of drainage is discharged through the main drainage ditch and small flow of infiltration water is diverted and discharged through the secondary drainage ditch. S4. Install an anti-backflow device at the outlet end of the secondary drainage ditch to prevent external water from flowing back into the hollow layer through the secondary drainage ditch.

[0006] The flow guiding structure described in step S2 includes a V-shaped flow guiding weir installed at the inlet of the main drainage ditch. The top surface of the V-shaped flow guiding weir is 10-15mm lower than the ground surface, and the bottom surface forms a 30-45° angle with the side wall of the main drainage ditch.

[0007] In step S3, the water flow distribution ratio is adjusted by setting an adjustable diversion gate. The diversion gate is installed vertically at the junction of the main and secondary drainage ditches, and its top is equipped with a height adjustment mechanism.

[0008] A perforated water pipe is laid in the secondary drainage ditch. The diameter of the perforated water pipe is 1 / 3 to 1 / 2 of the width of the secondary drainage ditch, and the opening rate of the pipe wall is controlled at 15-25%.

[0009] In step S4, the anti-backflow device uses a duckbill check valve, and its installation angle maintains a 5-10° elevation angle between the valve body centerline and the horizontal plane.

[0010] It also includes setting up a sediment collection tank in the secondary drainage ditch, with the sediment collection tank located 1-1.5m upstream of the anti-backflow device, and the tank depth being 1.2-1.5 times the depth of the secondary drainage ditch.

[0011] A variable-slope water-conducting layer is laid at the bottom of the main drainage ditch, with the slope range controlled between 0.5% and 2%, and the slope at the connection with the secondary drainage ditch is greater than that of other sections.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The main drainage ditch handles the large flow of rainwater, while the secondary drainage ditch treats infiltration water, thus avoiding overloading of a single drainage facility. The adjustable diversion gate allows for flexible adjustment of the main / secondary ditch flow ratio to 1:1, adapting to different rainfall intensities and regional drainage needs, and reducing the risk of water accumulation. A V-shaped diversion weir with a top surface 15mm below ground level and a bottom angle of 45° is used, accounting for 90% of the length of the main channel, to ensure rapid and directional water flow and reduce overflow. The check valve with an elevation angle of 10° and a valve body length of 250mm effectively prevents external water from flowing back into the hollow layer, ensuring system stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] like Figure 1 As shown: Example 1: This invention provides an indoor drainage ditch diversion drainage method for use with hollow flooring, comprising the following steps: S1. Main drainage ditches and secondary drainage ditches are set at intervals on the surface of the hollow floor, wherein the cross-sectional dimension of the main drainage ditch is larger than that of the secondary drainage ditch. S2. The surface runoff of the floor is guided to the main drainage ditch through the diversion structure, while the water that has seeped into the hollow layer of the floor is guided to the secondary drainage ditch. S3. Dynamically adjust the water flow distribution ratio of the main and secondary drainage ditches according to the drainage needs of different areas of the floor, so that large flow of drainage is discharged through the main drainage ditch and small flow of infiltration water is diverted and discharged through the secondary drainage ditch. S4. Install an anti-backflow device at the outlet end of the secondary drainage ditch to prevent external water from flowing back into the hollow layer through the secondary drainage ditch; As can be seen from the above, this method first sets up main drainage ditches and secondary drainage ditches at reasonable intervals on the surface of the hollow floor, and the main drainage ditch has a larger cross-sectional size to adapt to different drainage volume requirements; Next, with the help of the diversion structure, the surface runoff of the floor is precisely guided to the main drainage ditch to ensure that large amounts of rainwater can be discharged quickly; on the other hand, the water that has seeped into the hollow layer of the floor is directed to the secondary drainage ditch to achieve layered drainage. At the same time, this method can also dynamically adjust the water flow distribution ratio of the main and secondary drainage ditches according to the actual drainage needs of different areas of the floor, so that large flow of drainage is discharged from the main drainage ditch and small flow of infiltrated water is diverted and discharged through the secondary drainage ditch, thereby improving drainage efficiency. In addition, an anti-backflow device is installed at the outlet of the secondary drainage ditch to effectively prevent external water from flowing back into the hollow layer through the secondary drainage ditch, thus ensuring the stability and safety of the floor structure.

[0016] Example 2: Application in small-scale warehousing facilities The main drainage ditch has a rectangular cross-section (200mm wide × 150mm deep), and the secondary drainage ditches have a semi-circular cross-section (80mm in diameter), arranged at 1.5m intervals. The top surface of the V-shaped diversion weir is 10mm below the ground level, the bottom surface has an included angle of 30°, and the length of the diversion weir accounts for 60% of the length of the main channel; The adjustable diversion gate has an adjustable height of 50mm, corresponding to a main / secondary channel flow ratio of 3:1; The perforated water pipe has a diameter of 30mm (1 / 3 of the width of the secondary channel of 90mm) and an opening rate of 15%. The duckbill check valve has an elevation angle of 5° and a valve body length of 150mm. The minimum slope of the aquifer is 0.5%, and the slope at the connection is 1.0%. The sediment collection trough is 180 mm deep (1.5 times the depth of the secondary ditch, which is 120 mm). As can be seen from the above, in this embodiment, the main drainage ditch adopts a rectangular cross section with dimensions of 200mm wide × 150mm deep, while the secondary drainage ditch has a semi-circular cross section with a diameter of 80mm. The two are arranged at a distance of 1.5m to ensure smooth drainage. The V-shaped guide weir has a top surface 10mm below the ground level, a bottom angle of 30°, and a length accounting for 60% of the main channel, effectively guiding the water flow; The adjustable diversion gate has a height of 50mm, which can flexibly control the flow ratio of the main and secondary channels to 3:1 to meet different drainage needs; The multi-hole water pipe has a diameter of 30mm and an opening rate of 15%. When used with a duckbill check valve (5° elevation angle, 150mm valve body length), it effectively prevents backflow. The water-conducting layer is reasonably designed with a minimum slope of 0.5% and a slope of 1.0% at the connection, which promotes rapid water flow. The sediment collection trough is 180mm deep, which is 1.5 times the depth of the secondary ditch, making it easier to collect sediment and maintain the smooth flow of the drainage system.

[0017] Example 3: Application in standard office building flooring The main drainage ditch has a trapezoidal cross-section (250mm wide at the top and 180mm deep), while the secondary drainage ditch has a V-shaped cross-section (120mm wide at the top and 100mm deep), with a spacing of 2.2m. The top surface of the V-shaped diversion weir is 12.5 mm below the ground level, the bottom angle is 37.5°, and the length of the diversion weir accounts for 75% of the length of the main channel. The adjustable diversion gate has an adjustable height of 100mm, corresponding to a main / secondary channel flow ratio of 2:1; The perforated water pipe has a diameter of 45mm (1 / 3 of the width of the secondary channel of 135mm) and an opening rate of 20%. The duckbill check valve has an elevation angle of 7.5° and a valve body length of 200mm. The standard slope of the water-conducting layer is 1.25%, and the slope at the connection is 1.5%. The sediment collection trough is 150 mm deep (1.5 times the depth of the secondary ditch, which is 100 mm).

[0018] As can be seen from the above, in this embodiment, the main drainage ditch adopts a trapezoidal cross-section design, with a top width of 250mm and a depth of 180mm, which ensures the rapid discharge of large-volume rainwater. The secondary drainage ditch has a V-shaped cross-section, with an opening of 120mm and a depth of 100mm. The two drainage ditches are arranged at a reasonable interval of 2.2m to effectively share the drainage pressure. The top surface of the V-shaped diversion weir is 12.5mm lower than the ground level, the bottom surface has an included angle of 37.5°, and its length accounts for 75% of the main ditch, which significantly improves the diversion efficiency. The adjustable diversion gate can be adjusted up to 100mm in height, and the flow ratio of the main and secondary channels can be flexibly adjusted to 2:1 to meet the needs of different drainage scenarios. The precise design of the multi-hole water pipe and duckbill check valve further optimizes the drainage process and prevents backflow. The standard slope of the water-conducting layer is 1.25%, and the slope at the connection is 1.5%, which ensures the smooth flow of water. The sediment collection tank is 150mm deep, effectively collecting sediment and maintaining system cleanliness.

[0019] Example 4: Application in large logistics centers The main drainage ditch has a U-shaped cross-section (350mm wide × 250mm deep), and the secondary drainage ditch has a rectangular cross-section (180mm wide × 150mm deep), arranged at 3m intervals. The top surface of the V-shaped diversion weir is 15mm below the ground level, the bottom surface has an included angle of 45°, and the length of the diversion weir accounts for 90% of the length of the main channel; The adjustable diversion gate has an adjustable height of 150mm, corresponding to a main / secondary channel flow ratio of 1:1; The perforated water pipe has a diameter of 90mm (half the width of the secondary channel of 180mm) and an opening rate of 25%. The duckbill check valve has an elevation angle of 10° and a valve body length of 250mm. The maximum slope of the aquifer is 2.0%, and the slope at the connection is 2.5%. The sediment collection trough is 225 mm deep (1.5 times the depth of the secondary ditch, which is 150 mm).

[0020] As can be seen from the above, in this embodiment, the main drainage ditch adopts a U-shaped cross-section design, with a width of 350mm and a depth of 250mm, which can quickly drain a large amount of rainwater and avoid water accumulation; The secondary drainage ditch has a rectangular cross-section, 180mm wide and 150mm deep. The two are reasonably distributed at a 3m interval to ensure full coverage of drainage needs. The top surface of the V-shaped diversion weir is 15mm lower than the ground level, the bottom surface has an included angle of 45°, and its length accounts for 90% of the main channel, which greatly enhances the diversion effect. The adjustable diversion gate can be adjusted up to 150mm in height, allowing for flexible adjustment of the flow ratio between the main and secondary channels to 1:1, thus balancing the drainage load. The precise design of the multi-hole water guide pipe and duckbill check valve effectively prevents water backflow and ensures stable operation of the drainage system; The maximum slope of the aquifer is 2.0%, and the slope at the connection is 2.5%, promoting rapid water flow. The sediment collection trough is 225mm deep, facilitating sediment removal and maintaining system cleanliness.

[0021] All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0022] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] The accompanying drawings of the embodiments disclosed in this invention only involve structures relevant to the embodiments disclosed in this invention. Other structures can be referred to with common designs. Unless otherwise specified, the same embodiment and different embodiments of this invention can be combined with each other.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for diverting and draining indoor drainage ditches in conjunction with hollow flooring, characterized in that, Includes the following steps: S1. Main drainage ditches and secondary drainage ditches are set at intervals on the surface of the hollow floor, wherein the cross-sectional dimension of the main drainage ditch is larger than that of the secondary drainage ditch. S2. The surface runoff of the floor is guided to the main drainage ditch through the diversion structure, while the water that has seeped into the hollow layer of the floor is guided to the secondary drainage ditch. S3. Dynamically adjust the water flow distribution ratio of the main and secondary drainage ditches according to the drainage needs of different areas of the floor, so that large flow of drainage is discharged through the main drainage ditch and small flow of infiltration water is diverted and discharged through the secondary drainage ditch. S4. Install an anti-backflow device at the outlet end of the secondary drainage ditch to prevent external water from flowing back into the hollow layer through the secondary drainage ditch; The flow guiding structure described in step S2 includes a V-shaped flow guiding weir installed at the inlet of the main drainage ditch. The top surface of the V-shaped flow guiding weir is 10-15mm lower than the ground surface, and the bottom surface forms a 30-45° angle with the side wall of the main drainage ditch. In step S3, the water flow distribution ratio is adjusted by setting an adjustable diversion gate. The diversion gate is installed vertically at the junction of the main and secondary drainage ditches, and its top is equipped with a height adjustment mechanism. A perforated water pipe is laid in the secondary drainage ditch. The diameter of the perforated water pipe is 1 / 3 to 1 / 2 of the width of the secondary drainage ditch, and the opening rate of the pipe wall is controlled at 15-25%.

2. The indoor drainage ditch diversion drainage method for use with hollow flooring as described in claim 1, characterized in that, In step S4, the anti-backflow device uses a duckbill check valve, and its installation angle maintains a 5-10° elevation angle between the valve body centerline and the horizontal plane.

3. The indoor drainage ditch diversion drainage method for use with hollow flooring as described in claim 1, characterized in that, This also includes installing sediment collection tanks within the secondary drainage ditch, with the sediment collection tanks located within the flood control system. One to one and a half meters upstream of the counterflow device, the depth of the channel is 1.2 to 1.5 times the depth of the secondary drainage ditch.

4. The indoor drainage ditch diversion drainage method for use with hollow flooring as described in claim 1, characterized in that, A variable-slope water-conducting layer is laid at the bottom of the main drainage ditch, with the slope range controlled between 0.5% and 2%, and the slope at the connection with the secondary drainage ditch is greater than that of other sections.

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