Roof anti-water-storage combined drainage outfall structure

Abstract

The utility model relates to a roof anti-water-storage combined drainage outfall structure. The roof anti-water-storage combined drainage outfall structure comprises a first drainage port, a second drainage port, a rainwater main pipe, rainwater branch pipes, a water filtering area and a drainage ditch. The first water outlet is a main water outlet and is positioned above the second water outlet; the first water outlet is communicated with the rainwater main pipe, the second water outlet is communicated with the rainwater branch pipe, and the rainwater branch pipe is communicated with the rainwater main pipe; the water filtering area is arranged between a structural plate of the building structure main body and the waterproof layer, the water filtering area is communicated with the second water drainage opening, and the height of the second water drainage opening is flush with the structural plate of the building structure main body. And potential quality hazards are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of roof waterproofing, and in particular relates to a roof water-proofing combined drainage downspout structure. Background Art

[0002] Drainage of building roofs is a key issue related to the safety of roof structures and potential leakage hazards. Waterproofing projects focus on drainage and prevention as a supplement. Leakage has always been a pain point in the construction field, especially building roofs, which are the hardest hit by leakage. There are currently two types of roof construction methods: one is a positive roof, which is in turn: structural layer, leveling layer, slope layer, insulation layer, leveling layer, waterproof layer, surface layer; the other is an inverted roof, which is in turn: structural layer, leveling layer, slope layer, waterproof layer, insulation layer, protective layer, surface layer. Both of the above structures have a A disadvantage is that the slope layer is under the waterproof layer, which is prone to form a water storage layer. Taking the load problem into consideration, the roof slope layer often uses lightweight materials such as perlite and foam concrete. The characteristics of this type of material are loose and porous, light in weight, and easy to absorb water to form a "water storage" effect. The traditional downspout structure can only discharge water above the waterproof layer, but cannot discharge the water below the waterproof layer, so it can only be retained in the slope layer / insulation layer for a long time. Over time, it is easy to aggravate the erosion of the insulation material and slope material, damage the waterproofing, and cause structural leakage.

[0003] The traditional downspout structure has the following disadvantages:

[0004] 1. Installation elevation problem: Due to the roof construction structure, the bottom elevation of the downspout needs to be above the insulation layer when it is pre-buried, that is, higher than the structural surface. Before the roof construction is completed and the drainage system is working, if there is a lot of rainfall in the rainy season, the water on the roof cannot be discharged.

[0005] 2. Overall structural defects: In the traditional downspout waterproof structure, the waterproof layer extends into the downspout. After the roof construction is completed, as time goes by, if the waterproofing is damaged or aging occurs, when rainwater penetrates below the waterproof layer, the intruding rainwater will be retained on the roof for a long time and cannot be discharged.

[0006] 3. After the roof is completed, if rainwater intrudes below the waterproof layer and cannot be discharged in time, the following adverse effects will occur: 1. It will increase the roof load, affect the structural safety, and cause new leakage; 2. It will corrode the insulation and slope materials and affect the material performance; 3. If the weather is clear, high temperature and exposure to the sun will cause water vapor evaporation to cause the surface layer to arch, which is a hidden danger. Utility Model Content

[0007] The utility model aims to provide a roof water-retention combined drainage downspout structure to solve the technical problem that in the traditional downspout waterproof structure, the waterproof layer extends into the downspout, and as time goes by after the roof construction is completed, if the waterproof damage and aging occur, when rainwater intrudes below the waterproof layer, the intruded rainwater will be retained on the roof for a long time and cannot be discharged.

[0008] In order to achieve the above objectives, the technical solution adopted by the utility model is:

[0009] The roof water-retention combined drainage downspout structure comprises a first drainage outlet, a second drainage outlet, a rainwater main pipe, a rainwater branch pipe, a water filtering area and a drainage ditch; the first drainage outlet is a main drainage outlet, and the first drainage outlet is located above the second drainage outlet; the first drainage outlet is connected to the rainwater main pipe, the second drainage outlet is connected to the rainwater branch pipe, and the rainwater branch pipe is connected to the rainwater main pipe; the water filtering area is arranged between the structural plate of the main body of the building structure and the waterproof layer, the water filtering area is connected to the second drainage outlet, and the height of the second drainage outlet is flush with the structural plate of the main body of the building structure.

[0010] Furthermore, a main drainage channel extending in left and right directions is provided between the drainage ditch and the rainwater main pipe, the main drainage channel is connected to the rainwater main pipe, the first drainage port is located at the entrance of the main drainage channel, and the rainwater branch pipe is located below the main drainage channel.

[0011] Furthermore, a main drainage channel waterproof layer is provided in the main drainage channel.

[0012] Furthermore, the water filtering area is located below the drainage ditch, and a water filtering layer is arranged in the water filtering area.

[0013] Furthermore, a non-return baffle is provided on the rainwater branch pipe to prevent the water in the rainwater main pipe from flowing back into the roof through the second drain port.

[0014] Furthermore, the rainwater branch pipe includes a first branch pipe extending in the left and right directions and an inclined second branch pipe, the second drain outlet is located at the right end of the first branch pipe, the two ends of the second branch pipe are respectively connected to the rainwater main pipe and the first branch pipe, and the non-return baffle is located in the second branch pipe.

[0015] Furthermore, an intermediate layer is arranged between the structural plate of the building structure body and the waterproof layer, the height of the water filtering area is the same as that of the intermediate layer, and the water filtering area is located between the intermediate layer and the second drain outlet to guide the water in the intermediate layer to the second drain outlet.

[0016] Furthermore, the middle layer is composed of a thermal insulation layer and a material slope adjustment layer from top to bottom.

[0017] Beneficial effects of the utility model:

[0018] The utility model has a roof water-proof combined drainage downspout structure to prevent water seepage around the downpipe structure and prevent rainwater from flowing back into the waterproof layer, thereby avoiding the increase in roof load caused by the inability to drain water after the material slope layer has entered the water, affecting the safety of the structure, causing new leakage, and corroding the insulation / slope material to affect the material performance. If the weather is clear, the evaporation of water vapor due to high temperature exposure may cause the surface layer to arch. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the roof water-preventing combined drainage downspout structure in Example 1;

[0020] Figure 2 This is a schematic structural diagram of the first drain outlet and the second drain outlet of the roof water-proof combined drainage downspout structure in Example 1.

[0021] In the figure: 1. First drain outlet; 2. Second drain outlet; 3. Rainwater main pipe; 4. Rainwater branch pipe; 5. Filtration area; 6. Drainage ditch; 7. Main drainage channel; 8. Waterproof material; 9. Parapet; 10. Check baffle; 11. First branch pipe; 12. Second branch pipe; 13. Structural plate; 14. Waterproof layer; 15. Intermediate layer; 16. Leveling layer; 17. Insulation layer; 18. Material slope layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The implementation of the roof water storage combined drainage downspout structure of the utility model is as follows: Figure 1-2 shown.

[0024] Example 1

[0025] The roof water-retention combined drainage downspout structure of this embodiment includes a first drainage outlet 1, a second drainage outlet 2, a rainwater main pipe 3, a rainwater branch pipe 4, a water filtering area 5, and a drainage ditch 6; the water filtering area 5 is located below the drainage ditch 6, and a main drainage channel 7 extending in the left and right directions is provided between the drainage ditch 6 and the rainwater main pipe 3. A waterproof layer 14 is provided in the main drainage channel 7. The main drainage channel 7 is connected with the rainwater main pipe 3. The first drainage outlet 1 is located at the entrance of the main drainage channel 7. The first drainage outlet 1 is the main drainage outlet. The first drainage outlet 1 is located at the second drainage channel 3. The first drain outlet 1 is basically the same as the conventional drain outlet node, and the installation position is slightly lower than the height of the waterproof layer 14 by 1-2 cm, ensuring that the water flows smoothly through the drain outlet without water accumulation, and there is a water passage with the maximum displacement. The waterproof material 8 penetrates into the first drain outlet 1 from all sides of the parapet 9 and is close to the four walls to prevent water seepage from the periphery of the first drain outlet 1 structure, and at the same time prevents rainwater from flowing back into the waterproof layer 14. The first drain outlet 1 is connected to the rainwater main pipe 2; the second drain outlet 2 is connected to the rainwater branch pipe 3, and the rainwater branch pipe 3 is connected to the rainwater main pipe 2. The inlet of the second drain outlet 2 The water inlet is a rectangle with a width of 10 cm and a height of 5 cm to expand the water inlet cross-sectional area. The rainwater branch pipe 3 and the water outlet are circular with a diameter of 5 cm so as to be connected to the rainwater main pipe 2. The waterproof material 8 penetrates into the second drain port 2 from all around the parapet 9 to prevent water from seeping from the periphery of the second drain port 2 structure. The rainwater branch pipe 3 is located below the main drainage channel 7. A non-return baffle 10 is provided on the rainwater branch pipe 3 to prevent the water of the rainwater main pipe 3 from flowing back through the second drain port 2 into the roof. The rainwater branch pipe 4 includes a first branch pipe 11 extending in the left and right directions and a second branch pipe 12 extending in the right and left directions. and an inclined second branch pipe 12, the second drain outlet 2 is located at the right end of the first branch pipe 11, both ends of the second branch pipe 12 are connected with the rainwater main pipe 3 and the first branch pipe 11 respectively, the non-return baffle 10 is located in the second branch pipe 12, the oblique pipe design of the second branch pipe 12 helps the second drain outlet 2 to drain smoothly, and also has a certain anti-backflow effect, the water filtering area 5 is arranged between the structural plate 13 and the waterproof layer 14 of the building structure body, the water filtering area 5 is connected with the second drain outlet 2, and the height of the second drain outlet 2 is flush with the structural plate 13 of the building structure body.

[0026] An intermediate layer is arranged between the structural plate 13 and the waterproof layer 14 of the main body of the building structure. The height of the water filtering area 5 is the same as that of the intermediate layer 15. The intermediate layer 15 is composed of a thermal insulation layer 17 and a material slope layer 18 from top to bottom. The water filtering area 5 is located between the intermediate layer and the second drain outlet, within a range of about 30*30cm to the right of the second drain outlet. The water filtering area 5 is filled with porous, loose and highly permeable materials, and the filling height range covers the thermal insulation layer 17 and the material slope layer 18, and is located below the leveling layer 16, which does not affect the construction of the waterproof layer and the waterproof node effect at the first drain outlet. After simple filtration, the water stored in the thermal insulation layer and the material slope layer guides the water in the intermediate layer 15 to the second drain outlet 2 to be discharged from the roof. The water filtering area 5 can filter out debris or scattered materials of the material slope layer 18 to prevent the second drain outlet 2 from being blocked.

[0027] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. Roof water-proof combined drainage downspout structure, characterized by: It includes a first drain outlet, a second drain outlet, a rainwater main pipe, a rainwater branch pipe, a water filtering area, and a drainage ditch; the first drain outlet is a main drain outlet, and the first drain outlet is located above the second drain outlet; the first drain outlet is connected to the rainwater main pipe, the second drain outlet is connected to the rainwater branch pipe, and the rainwater branch pipe is connected to the rainwater main pipe; the water filtering area is arranged between the structural plate of the main body of the building structure and the waterproof layer, the water filtering area is connected to the second drain outlet, and the height of the second drain outlet is flush with the structural plate of the main body of the building structure.

2. The roof water-preventing combined drainage downspout structure according to claim 1 is characterized by: A main drainage channel extending in left and right directions is arranged between the drainage ditch and the rainwater main pipe. The main drainage channel is connected with the rainwater main pipe. The first drainage port is located at the entrance of the main drainage channel. The rainwater branch pipe is located below the main drainage channel.

3. The roof water-preventing combined drainage downspout structure according to claim 2 is characterized by: A main drainage channel waterproof layer is arranged in the main drainage channel.

4. The roof water-preventing combined drainage downspout structure according to claim 1 is characterized by: The water filtering area is located below the drainage ditch, and a water filtering layer is arranged in the water filtering area.

5. The roof water-preventing combined drainage downspout structure according to claim 1 is characterized by: The rainwater branch pipe is provided with a non-return baffle to prevent the water of the rainwater main pipe from flowing back into the roof through the second drain port.

6. The roof water-preventing combined drainage downspout structure according to claim 5 is characterized by: The rainwater branch pipe includes a first branch pipe extending in the left-right direction and an inclined second branch pipe. The second drain outlet is located at the right end of the first branch pipe. Both ends of the second branch pipe are respectively connected to the rainwater main pipe and the first branch pipe. The non-return baffle is located in the second branch pipe.

7. The roof water-preventing combined drainage downspout structure according to claim 1 is characterized by: An intermediate layer is arranged between the structural plate of the building structure body and the waterproof layer. The height of the water filtering area is the same as that of the intermediate layer. The water filtering area is located between the intermediate layer and the second drain outlet to guide the water in the intermediate layer to the second drain outlet.

8. The roof water-preventing combined drainage downspout structure according to claim 7 is characterized by: The middle layer is composed of a thermal insulation layer and a material slope adjustment layer from top to bottom.

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