A planting roof drainage and water storage system

Abstract

The present invention discloses a planting roof anti-drainage and water storage system, which relates to the technical field of planting roofs. The system includes: a bottom waterproof layer and a root-resistant puncture waterproof layer, which are sequentially arranged above the roof of the building from bottom to top; a siphon drainage layer, which is arranged above the root-resistant puncture waterproof layer; a soil covering layer, which is arranged above the siphon drainage layer and is used for planting roof plants; a water storage structure, which is arranged on one side of the building, and the siphon drainage layer water storage structure is connected to a sediment observation well through a siphon structure, and the sediment observation well is connected to the water storage structure through a connecting pipeline; solving the problems in the prior art such as many structural layers of planting roofs, complex construction, and potential water seepage hazards.

Description

Technical Field

[0001] The present invention belongs to the technical field of planted roofs, and more specifically, relates to a drainage and water storage system for planted roofs. Background Art

[0002] A planted roof is a roof on which planting soil is laid on the waterproof layer of a building roof or the top plate of an underground project, and plants are planted to achieve the functions of waterproofing, heat preservation, heat insulation and ecological environmental protection. For the waterproof drainage system of planted roofs, the existing roof structures have many layers, generally including a slope-forming layer, a leveling layer, a waterproof layer, an isolation layer, a fine stone concrete protection layer, a drainage (water storage) layer, a filter layer, a planting layer, etc. arranged in sequence from bottom to top, resulting in complex construction, many cross-operation work surfaces, difficult pipeline installation, difficult slope forming and leveling, and there is a risk of water seepage; at the same time, poor drainage leads to long-term water pressure on the top plate, the porosity of the gravel drainage layer is small, it is easy to damage the filter layer and block, and it is difficult to control the quality of the drainage and filtration materials, and there are many non-standard materials. Summary of the Invention

[0003] An object of the present invention is to provide a drainage and water storage system for planted roofs to solve the problems in the prior art, such as the complex structure of planted roofs, complex construction and the risk of water seepage.

[0004] To achieve the above object, the present invention provides a drainage and water storage system for planted roofs, which includes:

[0005] A bottom waterproof layer and a root-resistant waterproof layer, which are sequentially arranged above the roof of the building from bottom to top;

[0006] A siphon drainage layer, which is arranged above the root-resistant waterproof layer;

[0007] A soil covering layer, which is arranged above the siphon drainage layer for planting plants on the planted roof;

[0008] A water storage structure, which is arranged on one side of the building, and the siphon drainage layer water storage structure is connected to a sediment observation well through a siphon structure, and the sediment observation well is connected to the water storage structure through a connecting pipeline.

[0009] Optionally, the material of the root-resistant waterproof layer is a polymer root-resistant waterproof coiled material.

[0010] Optionally, the bottom waterproof layer is a waterproof coiled material compatible with the polymer root-resistant waterproof coiled material, and the bottom waterproof layer is bonded to the root-resistant waterproof layer.

[0011] Optionally, the building is an underground building.

[0012] Optionally, the siphon drainage layer includes a siphon drainage board and a siphon drainage trough, and one end of the siphon structure is connected to the siphon drainage trough.

[0013] Optionally, the siphon structure includes a siphon pipe, which includes a first horizontal part, a first vertical part, a second horizontal part, a second vertical part, and a third horizontal part connected in sequence. One end of the first horizontal part is connected to the siphon drainage layer. The upper and lower ends of the first vertical part are respectively connected to the other end of the first horizontal part and one end of the second horizontal part to form a Z shape. The lower and upper ends of the second vertical part are respectively connected to the other end of the second horizontal part and one end of the third horizontal part. The other end of the third horizontal part is connected to the sediment observation well. The middle diameter of the first vertical part is smaller than the diameters at both ends to form a reduced-diameter pipe.

[0014] Optionally, it further includes a ventilation observation pipe, which penetrates through the soil covering layer, and the lower end of the ventilation observation pipe is connected to the siphon drainage trough.

[0015] Optionally, an infiltration well is arranged in the soil covering layer, and the lower end of the infiltration well is connected to the siphon drainage layer.

[0016] Optionally, the water storage structure includes a reservoir.

[0017] Optionally, the water storage structure further includes a filtering device and a drainage mechanism. The filtering device is used to filter the water in the reservoir, and the drainage mechanism is used to drain the filtered rainwater.

[0018] Optionally, the siphon structure includes a siphon device, and the siphon device includes:

[0019] A main body housing, with a cavity arranged inside the main body housing. A partition structure is arranged in the cavity, and the partition structure divides the cavity into a first chamber, a second chamber, and a third chamber connected in sequence. The second chamber is below the first chamber and the third chamber. The third chamber is on one side of the first chamber. First openings and second openings are respectively arranged on the mutually remote sides of the upper parts of the first chamber and the third chamber.

[0020] A vertical pipe part and a first horizontal pipe part. The upper end of the vertical pipe part is connected to the main body housing and communicates with the second opening, and the lower end of the vertical pipe part is connected to one end of the first horizontal pipe part.

[0021] Optionally, the first opening and the second opening are respectively disposed on the left side wall and the right side wall of the main body housing. The partition structure includes a first partition and a second partition. The first partition is between the first chamber and the second chamber, and a third opening for communicating the first chamber and the second chamber is formed on the first partition. The second partition is between the first chamber and the third chamber, and the second chamber communicates with the lower part of the third chamber through a fourth opening.

[0022] Optionally, the first partition is a horizontal partition, and the second partition is a vertical partition. The left end of the horizontal partition is connected to the left side wall of the main body housing, and the upper end of the vertical partition is connected to the upper side wall of the main body housing. The third opening is formed between the right end of the horizontal partition and the lower end of the vertical partition, and the fourth opening is formed between the lower end of the vertical partition and the right side wall of the main body housing.

[0023] Optionally, a plurality of the siphon drainage grooves are connected by a connecting member. The connecting member includes a bendable connecting member, and the bendable connecting member includes:

[0024] Two drainage main bodies. Drainage spaces are provided in the two drainage main bodies. Connecting heads and first extension parts are respectively disposed at both ends of the drainage main bodies. The connecting heads are used for detachably connecting with the siphon drainage grooves. The first extension parts are disposed at the tops of the drainage main bodies and extend outwards. The two drainage main bodies are rotationally connected through the first extension parts.

[0025] Optionally, the bendable connecting member further includes a connecting body. A drainage space is provided in the connecting body. A second extension part is respectively disposed at both ends of the connecting body. The second extension parts are disposed at the tops of the connecting body and extend outwards. The two drainage main bodies are respectively rotationally connected to the second extension parts of the connecting body through their first extension parts.

[0026] Optionally, the bendable connecting member further includes a water collecting baffle. A third extension part rotationally connected to the first extension part is disposed at the upper end of the water collecting baffle. The lower end of the water collecting baffle is flush with the bottom surface of the drainage main body.

[0027] The present invention provides a planting roof drainage and water storage system, and its beneficial effects are as follows: The planting roof drainage and water storage system is only provided with a siphon drainage layer, a root-resistant waterproof layer, and a bottom waterproof layer below the soil layer for roof plant planting, simplifying the structural layers of the planting roof and the construction. At the same time, the siphon drainage layer is used for drainage, eliminating layers such as the slope-forming layer, isolation layer, fine stone concrete protective layer, and filter layer. Drainage is carried out by using the siphon effect, with high drainage efficiency and good drainage effect; and the siphon drainage layer is connected to the water storage structure after passing through the siphon structure and the sediment observation well, and water storage is achieved through the water storage structure, thus facilitating the recycling and utilization of rainwater.

[0028] Other features and advantages of the present invention will be described in detail in the following specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0030] Figure 1 FIG. 1 shows a schematic structural diagram of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0031] Figure 2 FIG. 2 shows a schematic structural diagram of a siphon pipe of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0032] Figure 3 FIG. 3 shows an enlarged schematic diagram of the roof top structure of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0033] Figure 4 FIG. 4 shows a schematic structural diagram of an infiltration well of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0034] Figure 5 FIG. 5 shows a three-dimensional structural diagram of a bendable connector of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0035] Figure 6 FIG. 6 shows a three-dimensional structural diagram of another bendable connector of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0036] Figure 7 FIG. 7 shows a schematic structural diagram of a male connector of a bendable connector of a planting roof drainage and water storage system according to an embodiment of the present invention.

[0037] Figure 8Shows a schematic structural view of a female connector of a bendable connector of a planting roof water prevention, drainage and water storage system according to an embodiment of the present invention.

[0038] Figure 9 Shows a schematic structural view of a water collecting baffle of a bendable connector of a planting roof water prevention, drainage and water storage system according to an embodiment of the present invention.

[0039] Figure 10 Shows a schematic cross-sectional structural view of a siphon device of a planting roof water prevention, drainage and water storage system according to another embodiment of the present invention.

[0040] Figure 11 Shows a schematic side structural view of a siphon device of a planting roof water prevention, drainage and water storage system according to another embodiment of the present invention.

[0041] Explanation of reference numerals:

[0042] 1, bottom waterproof layer; 2, root-resistant puncture waterproof layer; 3, siphon drainage layer; 4, soil covering layer; 5, siphon tube; 6, sediment observation well; 7, connecting pipeline; 8, water storage structure; 9, siphon drainage board; 10, siphon drainage groove; 11, first horizontal part; 12, first vertical part; 13, second horizontal part; 14, second vertical part; 15, third horizontal part; 16, air permeable observation tube; 17, geotextile; 18, infiltration well; 19, drain pipe; 20, inner filter cylinder; 21, filter material; 22, sewage intercepting basket; 23, well cover; 24, gravel layer; 25, tee connector; 26, hoop; 27, main body shell; 28, first opening; 29, second opening; 30, horizontal partition; 31, vertical partition; 32, third opening; 33, fourth opening; 34, vertical pipe part; 35, first horizontal pipe part; 36, second horizontal pipe part; 37, first chamber; 38, second chamber; 39, recessed part; 40, baffle; 41, horizontal connecting pipe part; 42, third chamber; 43, drainage main body; 44, first extension part; 45, connecting main body; 46, second extension part; 47, male connector; 48, female connector; 49, convex part; 50, insertion slot; 51, arched part; 52, accommodating groove; 53, rotating shaft; 54, first vertical surface part; 55, first inclined part; 56, horizontal part; 57, first wing part; 58, water collecting baffle; 59, third extension part; 60, second vertical surface part; 61, second inclined part; 62, second wing part. Detailed implementation manners

[0043] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0044] As Figure 1 and Figure 3 shown, the present invention provides a planting roof drainage and water storage system, which includes:

[0045] A bottom waterproof layer 1 and a root-resistant waterproof layer 2, which are sequentially arranged above the roof of the building from bottom to top;

[0046] A siphon drainage layer 3, which is arranged above the root-resistant waterproof layer 2;

[0047] A soil covering layer 4, which is arranged above the siphon drainage layer 3 and is used for planting roof plants;

[0048] A water storage structure 8, which is arranged on one side of the building. The siphon drainage layer 3 and the water storage structure 8 are connected through a siphon structure to a sediment observation well 6, and the sediment observation well 6 is connected to the water storage structure 8 through a connecting pipeline 7.

[0049] Specifically, to solve the problems in the prior art such as multiple structural layers of the planting roof, complex construction, and potential water seepage hazards; the planting roof drainage and water storage system provided by the present invention only has a siphon drainage layer 3, a root-resistant waterproof layer 2, and a bottom waterproof layer 1 below the soil covering layer 4 for planting roof plants, simplifying the structural layers of the planting roof and the construction. At the same time, the siphon drainage layer 3 is used for drainage, eliminating layers such as a slope-forming layer, an isolation layer, a fine stone concrete protection layer, and a filter layer, and using the siphon effect for drainage, with high drainage efficiency and good drainage effect; and the siphon drainage layer 3 is connected to the water storage structure 8 through a siphon structure and a sediment observation well 6, and water storage is achieved through the water storage structure 8, thereby facilitating the recycling and utilization of rainwater.

[0050] Optionally, the material of the root-resistant waterproof layer 2 is a polymer root-resistant waterproof coiled material.

[0051] Specifically, HDPE polymer root-resistant waterproof coiled material can be used, which has excellent physical root resistance performance, is resistant to chemical corrosion and puncture, is laid by self-adhesive method, does not require open fire, has high construction efficiency, and is green and safe.

[0052] Optionally, the bottom waterproof layer 1 is a waterproof coiled material that can be compatible with the polymer root-resistant waterproof coiled material, and the bottom waterproof layer 1 is bonded to the root-resistant waterproof layer 2.

[0053] Specifically, the waterproof coiled material of the bottom waterproof layer 1 is compatible with the material of the polymer root penetration resistant waterproof coiled material, which is beneficial to the bonding strength between the bottom waterproof layer 1 and the polymer root penetration resistant waterproof coiled material and improves the waterproof reliability.

[0054] Optionally, the building is an underground building.

[0055] Specifically, in this embodiment, the underground building is an underground garage, and the roof of the building is the top plate of the underground garage.

[0056] Optionally, the siphonic drainage layer 3 includes a siphonic drainage board 9 and a siphonic drainage groove 10, and one end of the siphonic structure is connected to the siphonic drainage groove 10.

[0057] Specifically, during construction, the siphonic drainage groove 10 can be first used to divide the top plate into drainage zones. The HDPE siphonic composite drainage board can be fully laid on the top plate waterproof layer. Rainwater is filtered after natural infiltration through the soil and other matrix layers in the overburden layer 4, diverted through the siphonic drainage board 9, and organized to converge to the siphonic drainage outlet through the siphonic drainage groove 10. Finally, during the convergence process through the siphonic structure, a pressure flow (siphonic effect) is formed due to the change in pipe diameter, achieving the effect of efficient drainage. The siphonic structure is designed in a full-flow and pressurized state, allowing for laying without slope, breaking the conventional gravity drainage system. And the water storage structure 8 can collect the infiltrated rainwater for water collection, thereby facilitating the purpose of secondary utilization.

[0058] In this embodiment, the siphonic drainage layer 3 further includes auxiliary materials, and the auxiliary materials include a geotextile 17.

[0059] Optionally, the siphonic structure includes a siphon pipe 5. The siphon pipe 5 includes a first horizontal part 11, a first vertical part 12, a second horizontal part 13, a second vertical part 14, and a third horizontal part 15 connected in sequence. One end of the first horizontal part 11 is connected to the siphonic drainage layer 3. The upper and lower ends of the first vertical part 12 are respectively connected to the other end of the first horizontal part 11 and one end of the second horizontal part 13 to form a Z shape. The lower and upper ends of the second vertical part 14 are respectively connected to the other end of the second horizontal part 13 and one end of the third horizontal part 15. The other end of the third horizontal part 15 is connected to a sediment observation well 6. The middle diameter of the first vertical part 12 is smaller than the diameters at both ends to form a stepped pipe.

[0060] Specifically, the siphon pipe 5 adopts the structure as Figure 2 shown to replace the existing Z-shaped stepped siphon pipe 5. Through the arrangement of the second vertical part 14 and the third horizontal part 15, the height difference between the water outlet elevation of the siphonic drainage layer 3 and the water outlet elevation of the siphon pipe 5 is changed. While ensuring the siphonic effect, the water outlet elevation of the siphon pipe 5 is closer to the ground.

[0061] Optionally, it further includes a breathable observation tube 16. The breathable observation tube 16 penetrates through the covering soil layer 4, and the lower end of the breathable observation tube 16 is connected to the siphon drainage trough 10.

[0062] Specifically, the setting of the breathable observation tube 16 enables the siphon drainage trough 10 to communicate with the external air environment, ensuring the generation of the siphon effect and improving the drainage efficiency. At the same time, it increases the soil breathability, increases the oxygen content in the covering soil layer 4 of the planting roof slab, avoids plant root rot, and enhances the plant growth potential.

[0063] Optionally, an infiltration well 18 is arranged in the covering soil layer 4, and the lower end of the infiltration well 18 is connected to the siphon drainage layer 3.

[0064] Specifically, the setting of the infiltration well 18 makes it easier for rainwater to flow downward through the covering soil layer 4 into the siphon drainage layer 3, improving the drainage effect.

[0065] In this embodiment, as Figure 4 shown, the infiltration well 18 is arranged above the siphon drainage trough 10 and communicates with the siphon drainage trough 10. Inside the infiltration well 18, a drain pipe 19, a filter inner cylinder 20, filter media 21, a pollution interception basket 22, a manhole cover 23, and a gravel layer 24 are sequentially arranged from bottom to top. The drain pipe 19 is connected to the siphon drainage trough 10 through a tee joint 25, and a hoop 26 is arranged at the connection position.

[0066] Optionally, the water storage structure 8 includes a water storage tank.

[0067] Optionally, the water storage structure 8 further includes a filtering device and a drainage mechanism. The filtering device is used to filter the water in the water storage tank, and the drainage mechanism is used to drain the filtered rainwater.

[0068] Specifically, the rainwater collected and discharged by the siphon drainage layer 3 enters the water storage tank for collection. The collected rainwater can be forcibly discharged through the drainage mechanism after passing through the filtering device, realizing the reuse of rainwater. In this embodiment, the filtering device can include a pollution interception hanging basket device, a first flush and filtration device, and a purification all-in-one machine, etc.; the drainage mechanism includes a water pump, a drain pipe, etc.

[0069] Optionally, the siphon structure includes a siphon device, and the siphon device includes:

[0070] A main body housing 27. A cavity is arranged inside the main body housing 27, and a partition structure is arranged in the cavity. The partition structure divides the cavity into a first chamber 37, a second chamber 38, and a third chamber 42 that are sequentially connected. The second chamber 38 is located below the first chamber 37 and the third chamber 42, and the third chamber 42 is located on one side of the first chamber 37. First openings 28 and second openings 29 are respectively arranged on the mutually remote sides of the upper parts of the first chamber 37 and the third chamber 42;

[0071] A vertical pipe portion 34 and a first horizontal pipe portion 35, wherein the upper end of the vertical pipe portion 34 is connected to the main body housing 27 and communicates with the second opening 29, and the lower end of the vertical pipe portion 34 is connected to one end of the first horizontal pipe portion 35.

[0072] Specifically, in another embodiment, as Figure 10 shown, the siphon structure can also be a siphon device. This siphon device changes the structure of the traditional Z-shaped siphon pipe. It has a main body housing 27. The first opening 28 on the main body housing 27 is used to connect with the siphon drainage tank and serves as the water inlet. Inside the main body housing 27, there are a first chamber 37, a second chamber 38, and a third chamber 42 connected in sequence. The second chamber 38 is located below the first chamber 37 and the third chamber 42, and the third chamber 42 is located on one side of the first chamber 37. The water in the siphon drainage tank enters the first chamber 37 through the water inlet and then flows downward into the second chamber 38. The second chamber 38 serves as a water storage space to store part of the water. Then it flows upward into the third chamber 42, and then enters the vertical pipe portion 34 through the second opening 29, and is discharged through the first horizontal pipe portion 35. The setting of the second chamber 38 enables water to be stored inside it, which is conducive to forming a true full flow inside the second opening 29 and the vertical pipe portion 34, reducing the generation of bubbles or bubble nodes, and improving the ease of forming the siphon effect. At the same time, compared with the traditional Z-shaped drain pipe, due to the existence of the second chamber 38, this siphon device reduces its dependence on gravity, can shorten the length of the vertical pipe portion 34, and thus can be adapted to the working conditions where the elevation difference between the water outlet elevation of the siphon drainage layer 3 and the water outlet elevation is smaller, improving the applicable range of this siphon device.

[0073] Optionally, the first opening 28 and the second opening 29 are respectively arranged on the left side wall and the right side wall of the main body housing 27. The partition structure includes a first partition and a second partition. The first partition is located between the first chamber 37 and the second chamber 38, and a third opening 32 is formed on the first partition to communicate the first chamber 37 with the second chamber 38. The second partition is located between the first chamber 37 and the third chamber 42, and the second chamber 38 communicates with the lower part of the third chamber 42 through a fourth opening 33.

[0074] Specifically, the first chamber 37, the second chamber 38, and the third chamber 42 are formed in the cavity by the arrangement of the first partition and the second partition.

[0075] Optionally, the first partition is a horizontal partition 30, the second partition is a vertical partition 31. The left end of the horizontal partition 30 is connected to the left side wall of the main body housing 27, and the upper end of the vertical partition 31 is connected to the upper side wall of the main body housing 27. A third opening 32 is formed between the right end of the horizontal partition 30 and the lower end of the vertical partition 31, and a fourth opening 33 is formed between the lower end of the vertical partition 31 and the right side wall of the main body housing 27.

[0076] Specifically, for the purpose of simplifying the structure and reducing the manufacturing difficulty, as a preferred solution, the first partition can be the horizontal partition 30, and the second partition can be the vertical partition 31. A third opening 32 is formed therebetween to communicate the first chamber 37 and the second chamber 38, and a fourth opening 33 that is naturally communicated is formed between the lower end of the third chamber 42 and the upper right part of the second chamber 38.

[0077] Optionally, a second horizontal pipe portion 36 extending leftward is provided on the left side of the main body housing 27, and one end of the second horizontal pipe portion 36 is communicated with the first opening 28.

[0078] Specifically, the second horizontal pipe portion 36 extends leftward from the first opening 28 on the main body housing 27 and is used for connecting the siphon device to a siphon drainage tank to introduce the water in the siphon drainage tank into the siphon device.

[0079] Optionally, the equivalent diameter of the vertical pipe portion 34 is smaller than that of the first horizontal pipe portion 35.

[0080] Specifically, the equivalent diameter of the vertical pipe portion 34 is smaller than that of the first horizontal pipe portion 35, so that the vertical pipe portion 34 still has a diameter-changing effect like the diameter-changing pipe of the existing Z-shaped siphon. The vertical pipe portion 34 is thinner than the second horizontal pipe portion 36, which is more conducive to forming a full flow in the vertical pipe portion 34 and conducive to the formation of the siphon effect.

[0081] Optionally, the equivalent diameter of the first horizontal pipe portion 35 is equal to that of the second horizontal pipe portion 36.

[0082] Optionally, a recessed portion 39 is provided at the upper right corner of the main body housing 27, the second opening 29 is provided below the recessed portion 39, and the lower edge of the second opening 29 is lower than the lower edge of the first opening 28.

[0083] Specifically, the second opening 29 is provided below the recessed portion 39. The opening height of the second opening 29 on the right side wall of the main body housing 27 is lower than the height of the first opening 28 on the left side wall of the main body housing 27, and the lower edge of the second opening 29 is lower than the lower edge of the first opening 28. In this way, according to the principle of the communicating vessel, the water in the second chamber 38 is more likely to flow into the vertical pipe portion 34 from the second opening 29 through the third chamber 42, thereby realizing drainage.

[0084] Optionally, the upper end of the vertical pipe portion 34 communicates with the second opening 29 through the horizontal connecting pipe portion 41.

[0085] Optionally, the equivalent diameter of the horizontal connecting pipe is greater than the opening area of the second opening 29. A baffle 40 is provided at the upper part of the left end of the horizontal connecting pipe portion 41, and the lower part of the left end of the horizontal connecting pipe communicates with the second opening 29.

[0086] Specifically, the water in the second chamber 38 passes through the third chamber 42 and then enters the horizontal connecting pipe portion 41 through the second opening 29 with an opening area smaller than that of the first opening 28. The equivalent diameter of the horizontal connecting pipe portion 41 is greater than the opening area of the second opening 29. The horizontal connecting pipe portion 41 is connected to the vertical pipe portion 34 with a smaller equivalent diameter, forming a diameter-changing effect here to further promote the formation of the siphon effect.

[0087] Optionally, the cross-sectional shapes of the vertical pipe portion 34 and the first horizontal pipe portion 35 are circular, rectangular, polygonal or elliptical; the cross-sectional shape of the second horizontal pipe portion 36 is circular, rectangular, polygonal or elliptical.

[0088] In this embodiment, as Figure 11 shown, the cross-sectional shapes of the vertical pipe portion 34, the first horizontal pipe portion 35 and the second horizontal pipe portion 36 are all circular.

[0089] As Figures 5 to 9 shown, optionally, a plurality of the siphon drainage grooves are connected by a connecting member, and the connecting member includes a bendable connecting member, and the bendable connecting member includes:

[0090] Two drainage main bodies 43. Drainage spaces are provided in the two drainage main bodies 43. Connecting heads and first extension portions 44 are respectively provided at both ends of the drainage main body 43. The connecting heads are used for detachably connecting with the siphon drainage grooves. The first extension portions 44 are provided at the tops of the drainage main bodies 43 and extend outwards. The two drainage main bodies 43 are rotationally connected through the first extension portions 44.

[0091] Specifically, to solve the problem that the connectors in the prior art can only adapt to the right-angle or straight-line connection of the drainage trough and are difficult to adapt to the non-right-angle connection working conditions; the present invention also provides a bendable connector. Each of the two drainage bodies 43 of the bendable connector is provided with a first extension portion 44. The first extension portion 44 extends outward from the top of the drainage body 43 to the outer end of the drainage body 43. Then, due to the existence of the first extension portion 44, a concave shape is formed on both sides of each drainage body 43. The two drainage bodies 43 are rotatably connected through the first extension portion 44, so that the concave shapes of the two drainage bodies 43 are connected, and a notch structure is formed on both sides of the connector. In this way, the two rotatably connected drainage bodies 43 can rotate relative to each other. The existence of the notch provides a rotation space, enabling the axes of the two drainage bodies 43 to form a non-right-angle, adapting to the non-right-angle connection working conditions of the siphon drainage trough. For the gap caused by the above-mentioned notch structure, it does not affect the use of the bendable connector and the entire siphon drainage system. There are multiple water passing holes on the side wall of the siphon drainage trough for water passing, facilitating water to enter the siphon drainage trough through the water passing holes and then be discharged. Therefore, after the bendable connector adjusts the turning angle, the gap formed at the notch structure can also be equivalent to forming water passing holes on its side wall for water to pass through.

[0092] Optionally, the bendable connector further includes a connection body 45. A drainage space is provided inside the connection body 45. Two second extension portions 46 are respectively provided at both ends of the connection body 45. The second extension portions 46 are provided at the top of the connection body 45 and extend outward. The two drainage bodies 43 are respectively rotatably connected to the second extension portions 46 of the connection body 45 through their first extension portions 44.

[0093] Specifically, as Figure 5 shown, the bendable connector may further include a connection body 45. In one example, a connection body 45 is provided between the two drainage bodies 43. The relative rotation of the two drainage bodies 43 is realized through the connection body 45. The first extension portions 44 of the two drainage bodies 43 are respectively connected to a second extension portion 46 of the connection body 45, enabling each drainage body 43 to rotate a certain angle relative to the connection body 45. Equivalently, further, the two drainage bodies 43 are rotatably connected through the rotation connection of their respective first extension portions 44 and the second extension portions 46 of the connection body 45, and then the included angle formed between the axes of the two drainage bodies 43 can be adjusted more flexibly.

[0094] Optionally, a plurality of connection bodies 45 are provided, and the plurality of connection bodies 45 are connected in sequence. Adjacent two connection bodies 45 are rotatably connected through the second extension portions 46.

[0095] Specifically, as Figure 6As shown, in another example, a plurality of connecting bodies 45 may also be provided. The plurality of connecting bodies 45 are connected in sequence, and relative rotation between two adjacent ones can be achieved through the rotational connection of the second extension parts 46 between two adjacent ones. Such a setting enables a larger adjustable turning angle range between the siphon drainage grooves, and makes the gap formed by the above-mentioned notch structure smaller, thereby improving the overall structural strength.

[0096] Optionally, the cross-section of the drainage body 43 is an arch open at the bottom, and the cross-section of the connecting body 45 is an arch open at the bottom.

[0097] Specifically, the drainage body 43 and the connecting body 45 can be arches, and a drainage space is formed inside the arches. When in use, the siphon drainage groove connector is buckled on its use plane, so the bottom can be set to be open.

[0098] Optionally, the connecting head is a male connecting head 47 or a female connecting head 48.

[0099] Specifically, the connecting heads on the two drainage bodies 43 can both be male connecting heads 47 or female connecting heads 48. In this embodiment, the connecting heads on the two drainage bodies 43 are both female connecting heads 48, so they all need to be connected to the male connecting head 47 on the siphon drainage groove.

[0100] In this embodiment, the male connecting head 47 includes two protruding parts 49 arranged at intervals. The protruding parts 49 are arranged along the outer periphery of the drainage body 43, and a plugging groove 50 is formed between the two protruding parts 49; the female connecting head 48 includes an arched part 51. The outer periphery of the arched part 51 is connected to the drainage body 43 through a connecting part. A receiving groove 52 is formed between the arched part 51 and the drainage body 43. The arched part 51 is in plugging fit with the plugging groove 50, and the protruding part 49 on the outer side is in plugging fit with the receiving groove 52.

[0101] Specifically, as Figure 7 and Figure 8 shown, the male connecting head 47 and the female connecting head 48 can achieve detachable connection through the plugging fit of the arched part 51 and the plugging groove 50 and through the plugging fit of the protruding part 49 and the receiving groove 52.

[0102] In this embodiment, the first extension part 44 and the second extension part 46 are rotationally connected through a vertically arranged rotating shaft 53.

[0103] Specifically, the mutually connected parts of the first extension part 44 and the second extension part 46 are horizontally arranged plates, and relative rotation in the horizontal plane is achieved through the arrangement of the rotating shaft 53.

[0104] In this embodiment, a horizontal first groove is provided on the first extension portion 44, the rotating shaft 53 is disposed in the first groove, the second extension portion 46 is in a flat plate shape, a rotating hole is formed in the second extension portion 46, the second extension portion 46 is movably disposed in the first groove and the rotating shaft 53 is inserted through the rotating hole.

[0105] Specifically, the rotating shaft 53 can be configured to be detachable or integrally formed with the first extension portion 44.

[0106] Further, for examples having a plurality of connecting bodies 45, the second extension portions 46 between the connected connecting bodies 45 can be stacked on each other, and the specific dimensions can be designed according to actual needs.

[0107] In this embodiment, the drainage body 43 includes two first vertical portions 54 disposed opposite to each other. A first inclined portion 55 is provided at the top of each of the two first vertical portions 54. The bottom spacing of the two first inclined portions 55 is greater than the top spacing thereof. The tops of the two first inclined portions 55 are connected by a horizontal portion 56. A first wing portion 57 is provided at the bottom of each of the two first vertical portions 54, and the two first wing portions 57 extend in directions away from each other.

[0108] Optionally, the bendable connecting member further includes a water collecting baffle 58. The upper end of the water collecting baffle 58 is provided with a third extension portion 59 rotatably connected to the first extension portion 44, and the lower end of the water collecting baffle 58 is flush with the bottom surface of the drainage body 43.

[0109] Specifically, as Figure 9 shown, the water collecting baffle 58 mainly functions to support and strengthen. Of course, the water collecting baffle 58 can reduce the width of the gap formed by the above-mentioned notch structure, making the gap smaller.

[0110] Optionally, the water collecting baffle 58 includes a second vertical portion 60. A second inclined portion 61 is provided at the top of the second vertical portion 60. A horizontal third extension portion 59 is provided at the top of the second inclined portion 61. A second wing portion 62 is provided at the bottom of the second vertical portion 60.

[0111] Specifically, the shape of the water collecting baffle 58 is similar to half of the shape of the drainage body 43.

[0112] In summary, when the planting roof anti-drainage and water storage system provided by the present invention is in use, a drainage space with through grooves is formed in the siphon drainage layer 3 above the top plate of the underground garage. The grid-type laying of the siphon drainage grooves 10 divides the area above the top plate of the underground garage into several interconnected drainage areas, accelerating the drainage speed of the top plate. The air-permeable observation tube 16 is installed on the siphon drainage groove 10 to ensure that the pressure in the siphon drainage groove 10 is the same as the atmospheric pressure, forming a pressure difference at the bottom of the soil layer 4. Utilizing the pressure difference and the principle of gravity, the infiltrated water is concentrated into the siphon drainage groove 10 and then discharged through the siphon tube 5 under the action of the siphon principle, realizing organized drainage in all directions with zero slope on the large-area planting roof. This system optimizes the structural layers of the top plate, eliminating the slope-forming layer, protective layer, isolation layer, filter layer, etc. Taking a 10,000-square-meter top plate as an example, the construction cost per square meter can be saved by about 50 yuan compared with the traditional planting roof construction technology. This system integrates the diversified functional structural layers of the bottom waterproof layer 1, root-resistant waterproof layer 2, and siphon drainage layer 3, with convenient assembly and installation, saving a large amount of construction and maintenance periods, and reducing the overall construction period of the top plate by 1 / 3 - 1 / 2. Moreover, it is easy to maintain and reduces blockage phenomena. By means of organized and zero-slope drainage of the infiltrated water, an effective drainage air layer is established under the soil layer 4, so that the pressure water will not directly act on the bottom waterproof layer 1 and the root-resistant waterproof layer 2, thus radically curing the leakage problem caused by the long-term pressure water environment of the waterproof layer. This system realizes the recycling of rainwater, saves water resources, is green and environmentally friendly, conforms to the sponge city green energy-saving building specifications, and plays the roles of infiltration, storage, purification, utilization, and drainage.

[0113] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A planting roof drainage and water storage system, characterized in that, The system includes: A bottom waterproof layer and a root-resistant puncture waterproof layer, which are sequentially arranged above the roof of the building from bottom to top; A siphon drainage layer, which is arranged above the root-resistant puncture waterproof layer; A soil covering layer, which is arranged above the siphon drainage layer and is used for planting roof plants; A water storage structure, which is arranged on one side of the building. The siphon drainage layer water storage structure is connected to a sediment observation well through a siphon structure, and the sediment observation well is connected to the water storage structure through a connecting pipeline; The siphon structure includes a siphon device, and the siphon device includes: A main body housing, with a cavity arranged inside the main body housing. A partition structure is arranged in the cavity, and the partition structure divides the cavity into a first chamber, a second chamber, and a third chamber that are sequentially connected. The second chamber is below the first chamber and the third chamber, the third chamber is on one side of the first chamber, and a first opening and a second opening are respectively arranged on the mutually remote sides of the upper parts of the first chamber and the third chamber; A vertical pipe portion and a first horizontal pipe portion. The upper end of the vertical pipe portion is connected to the main body housing and communicates with the second opening, and the lower end of the vertical pipe portion is connected to one end of the first horizontal pipe portion; The first opening and the second opening are respectively arranged on the left side wall and the right side wall of the main body housing. The partition structure includes a first partition and a second partition. The first partition is between the first chamber and the second chamber, and a third opening is formed on the first partition to communicate the first chamber and the second chamber. The second partition is between the first chamber and the third chamber, and the second chamber communicates with the lower part of the third chamber through a fourth opening; The first partition is a horizontal partition, the second partition is a vertical partition. The left end of the horizontal partition is connected to the left side wall of the main body housing, the upper end of the vertical partition is connected to the upper side wall of the main body housing, the third opening is formed between the right end of the horizontal partition and the lower end of the vertical partition, and the fourth opening is formed between the lower end of the vertical partition and the right side wall of the main body housing.

2. The planting roof water prevention, drainage and storage system according to claim 1, characterized in that The material of the root-resistant puncture waterproof layer is a polymer root-resistant puncture waterproof coiled material.

3. The planting roof drainage and water storage system according to claim 2, characterized in that, The bottom waterproof layer is a waterproof coiled material that can be compatible with the polymer root-resistant puncture waterproof coiled material, and the bottom waterproof layer is bonded to the root-resistant puncture waterproof layer.

4. The planting roof anti-drainage and water storage system according to claim 1, characterized in that, The building is an underground building.

5. The planting roof water prevention, drainage and storage system according to claim 1, characterized in that, The siphon drainage layer includes a siphon drainage board and a siphon drainage groove, and one end of the siphon structure is connected to the siphon drainage groove.

6. The planting roof water prevention, drainage and storage system according to claim 5, characterized in that, It also includes a ventilation observation pipe, which penetrates through the soil covering layer, and the lower end of the ventilation observation pipe is connected to the siphon drainage groove.

7. The planting roof drainage and water storage system according to claim 1, characterized in that, A percolation well is arranged in the soil covering layer, and the lower end of the percolation well is connected to the siphon drainage layer.

8. The anti-drainage and water storage system for planted roof according to claim 1, characterized in that, The water storage structure includes a reservoir.

9. The planting roof drainage and water storage system according to claim 8, characterized in that, The water storage structure also includes a filtering device and a drainage mechanism. The filtering device is used to filter the water in the reservoir, and the drainage mechanism is used to drain the filtered rainwater.

10. The planting roof water prevention, drainage and storage system according to claim 5, characterized in that, Multiple siphon drainage grooves are connected through connectors, and the connectors include bendable connectors, and the bendable connectors include: Two drainage main bodies, a drainage space is provided in each of the two drainage main bodies, a connector and a first extension part are respectively arranged at two ends of the drainage main body, the connector is used for detachably connecting with a siphon drainage trough, the first extension part is arranged at the top of the drainage main body and extends outwards, and the two drainage main bodies are rotationally connected through the first extension part.

11. The planting roof water prevention, drainage and storage system according to claim 10, characterized in that, The bendable connecting piece further includes a connecting body, a drainage space is provided in the connecting body, a second extension part is respectively arranged at two ends of the connecting body, the second extension part is arranged at the top of the connecting body and extends outwards, and the two drainage main bodies are respectively rotationally connected with the second extension part of the connecting body through their first extension parts.

12. The planting roof drainage and water storage system according to claim 10, wherein The bendable connecting piece further includes a water collecting baffle, an upper end of the water collecting baffle is provided with a third extension part rotationally connected with the first extension part, and a lower end of the water collecting baffle is flush with a bottom surface of the drainage main body.

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