Roof drainage system for ultra-low energy consumption building

Abstract

The invention discloses a roof drainage system for an ultra-low energy consumption building, and the system comprises a structure top plate which is horizontally arranged and is vertically provided with a mounting hole in a penetrating manner; the drainage pipe vertically penetrates through the mounting hole and comprises a top pipe, a bottom pipe and a broken bridge connecting pipe, an outer turning plate is horizontally arranged at the upper end of the top pipe, and the top pipe and the bottom pipe are both in threaded connection with the inner sides of the two ends of the broken bridge connecting pipe; the rainwater hopper is arranged above the top pipe and is communicated with the top pipe; the thermal insulation slurry filling layer is arranged between the outer wall of the drainage pipe and the inner wall of the mounting hole and between the upper end face of the structural top plate and the outer turning plate. The drainage pipe is arranged in a sectional mode, broken bridge treatment is conducted on the drainage pipe, the problem that heat in a building is lost due to heat conduction of a traditional roof drainage device is solved, meanwhile, a heat preservation sleeve does not need to be arranged on the lower portion of the drainage pipe, a hard heat preservation slurry filling layer is adopted, and the overall stability of installation and follow-up use of the drainage pipe is guaranteed; and the risk of leakage easily caused by vibration is solved.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a roof drainage system for ultra-low energy consumption buildings. Background Technology

[0002] Ultra-low energy buildings refer to a type of green building that significantly reduces energy consumption throughout its entire life cycle by adopting advanced energy-saving technologies, optimizing energy management, and making full use of renewable energy during the design, construction, and use process. This results in energy consumption that is far lower than that of conventional buildings.

[0003] Currently, in ultra-low energy building systems, roof rainwater drainage devices are usually specially designed to match the overall energy-saving goals. The core requirement is to ensure efficient drainage while minimizing thermal bridging, air infiltration, and heat loss, so as not to damage the overall airtightness and thermal insulation performance of the building envelope.

[0004] Currently, all internal roof drainage systems are made of cast iron. However, cast iron has a high thermal conductivity and loses heat too quickly. Therefore, a 30mm thick rubber and plastic insulation sleeve is usually added to the bottom of the roof drainage system.

[0005] However, this method still causes heat to be lost quickly through the rainwater hopper itself, and the insulation material has a certain degree of elasticity. During the installation or subsequent use of the roof drainage device, due to factors such as vibration or stress, cracks or leaks may easily occur around the roof drainage device, which needs to be improved. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide an ultra-low energy consumption roof drainage system for buildings. This system can solve the problem of heat loss within buildings caused by the heat conduction of traditional roof drainage devices, and can also solve the leakage problems caused by vibration, expansion and contraction during the installation process and long-term use of roof drainage devices.

[0007] The above-mentioned technical objective of this invention is achieved through the following technical solution: a roof drainage system for ultra-low energy consumption buildings, comprising: The top plate of the structure is horizontally arranged and has vertically penetrating mounting holes; A drain pipe, which vertically penetrates the mounting hole, includes a top pipe, a bottom pipe, and a thermal break connecting pipe. The upper end of the top pipe is horizontally provided with an outward flap located above the top plate of the structure. Both the top pipe and the bottom pipe are threaded to the inner sides of both ends of the thermal break connecting pipe. A rainwater hopper is disposed above the jacking pipe and is connected to the jacking pipe; An insulating mortar filling layer is disposed between the outer wall of the drainage pipe and the inner wall of the mounting hole, and between the upper surface of the top plate of the structure and the outer flap.

[0008] In a preferred embodiment, the present invention may be further configured such that: the outer wall of the thermal break connecting pipe is provided with a reinforcing plate that abuts against the lower end face of the top plate of the structure, and the reinforcing plate is provided with screws threaded to the top plate of the structure.

[0009] In a preferred embodiment, the present invention may be further configured such that: a first waterproof and vapor barrier membrane is provided at the outer edge of the lower end face of the reinforcing plate, the first waterproof and vapor barrier membrane covers the screw and is attached to the lower end face of the top plate of the structure.

[0010] In a preferred embodiment, the present invention can be further configured such that: a plurality of gravity-type switch plates are provided on the inner wall of the jacking pipe, the plurality of gravity-type switch plates block the jacking pipe, the gravity-type switch plates are rotatably connected to the inner wall of the jacking pipe, and an elastic element is provided between the inner wall of the jacking pipe and the upper surface of the gravity-type switch plate.

[0011] In a preferred embodiment, the present invention may be further configured such that: a telescopic bracket is provided on the lower end face of the outer flap, the telescopic bracket is embedded in the thermal insulation grout filling layer, and a bolt is provided at the lower end to fix it to the upper end face of the top plate of the structure.

[0012] In a preferred embodiment, the present invention can be further configured as follows: a leveling layer surrounding the thermal insulation mortar filling layer is provided on the upper surface of the top plate of the structure; a polystyrene board insulation layer is provided on the leveling layer; a lightweight base material slope-finding layer is provided on the polystyrene board insulation layer; and a mortar protective layer is provided on the lightweight base material slope-finding layer. The polystyrene board insulation layer, the lightweight base material slope-finding layer, and the mortar protective layer are all inclined on the side near the mounting hole, and the lower end of the inclined surface of the mortar protective layer is flush with the outer edge of the rainwater hopper.

[0013] In a preferred embodiment, the present invention may be further configured such that: a second waterproof and vapor barrier membrane is provided between the top plate of the structure and the leveling layer, the second waterproof and vapor barrier membrane wraps the outer wall of the thermal insulation slurry filling layer and covers the upper surface of the outward flap.

[0014] In a preferred embodiment, the present invention can be further configured such that a third waterproof vapor barrier is provided between the leveling layer and the polystyrene board insulation layer, the third waterproof vapor barrier wrapping the inner vertical surfaces of the polystyrene board insulation layer and the lightweight base material slope layer, and covering the upper sloping surface of the lightweight base material slope layer.

[0015] In a preferred embodiment, the present invention may be further configured such that a waterproof membrane layer is provided between the lightweight base material slope-finding layer and the mortar protective layer, the waterproof membrane layer extending to the upper end face of the outer flap and the inner wall of the jacking pipe.

[0016] In a preferred embodiment, the present invention may be further configured such that a sealant is provided between the rainwater hopper and the waterproof membrane layer.

[0017] In summary, the present invention has the following beneficial effects: 1. By setting the drainage pipe to be segmented and the middle section to be a thermal break connection pipe, the drainage pipe is divided and thermal break is applied while ensuring the applicability, durability and overall function of the original cast iron roof drainage device. This solves the problem of heat loss in the building caused by the heat conduction of the traditional roof drainage device. At the same time, the lower part of the drainage pipe no longer needs to be insulated with an insulation sleeve. Instead, a rigid insulation mortar filling layer is used to ensure the overall stability of the drainage pipe installation and subsequent use, and solves the risk of leakage caused by vibration. 2. By installing a gravity-activated switch plate inside the drain pipe, the drain pipe can be automatically shut off, which can reduce heat loss caused by air circulation during non-drainage periods; 3. By installing telescopic brackets on the drainage pipe, the height limit and upper end fixation of subsequent construction can be met, so as to achieve the functions of upper stability and thermal conductivity of the broken bridge. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an embodiment; Figure 2 This is a schematic diagram of the structure of the drainage pipe and rainwater hopper in the embodiment.

[0019] Reference numerals: 1. Structural top plate; 11. Mounting hole; 2. Drainage pipe; 21. Top pipe; 211. Gravity switch plate; 212. Elastic element; 22. Bottom pipe; 23. Thermal break connecting pipe; 24. Outward flap; 25. Telescopic bracket; 26. Bolt; 27. Reinforcing plate; 28. Screw; 3. Rainwater hopper; 4. Thermal insulation mortar filling layer; 5. First waterproof vapor barrier membrane; 6. Leveling layer; 61. Second waterproof vapor barrier membrane; 7. Polystyrene board insulation layer; 71. Third waterproof vapor barrier membrane; 8. Lightweight base material slope layer; 9. Mortar protective layer; 91. Waterproof membrane layer; 92. Sealant. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 , Figure 2 As shown, an ultra-low energy consumption building roof drainage system includes a structural top slab 1, a drainage pipe 2, a rainwater hopper 3, and an insulation mortar filling layer 4.

[0022] like Figure 1 , Figure 2 As shown, the top plate 1 of the structure is horizontally arranged and has a vertically penetrating mounting hole 11.

[0023] like Figure 1 , Figure 2 As shown, the drain pipe 2 vertically penetrates the mounting hole 11. The drain pipe 2 includes a top pipe 21, a bottom pipe 22, and a thermal break connecting pipe 23.

[0024] like Figure 1 , Figure 2 As shown, the thermal break connecting pipe 23 is located between the top pipe 21 and the bottom pipe 22. Both the top pipe 21 and the bottom pipe 22 are threaded to the inner sides of both ends of the thermal break connecting pipe 23. The top pipe 21 and the bottom pipe 22 are threaded on the outer wall, while the thermal break connecting pipe 23 is threaded on the inner wall. This design prevents rainwater from flowing out along the threads when rainwater is discharged from the drainage pipe 2, thus avoiding leakage.

[0025] like Figure 1 , Figure 2 As shown, the lower end of the jacking pipe 21 is located inside the mounting hole 11, and the upper end is located above the structural top plate 1. At the same time, an outward flap 24 is horizontally provided at the upper end of the jacking pipe 21 above the structural top plate 1.

[0026] like Figure 1 , Figure 2 As shown, the lower end face of the outer flap 24 is provided with a telescopic bracket 25, and the lower end of the telescopic bracket 25 is provided with a bolt 26 fixed to the upper end face of the top plate 1 of the structure, so as to be adjusted in real time within the height range of the interval, to meet the height limit of the subsequent construction of the drainage pipe 2 and the upper end fixing, so as to achieve the functions of upper stability and thermal conductivity of the broken bridge.

[0027] like Figure 1 , Figure 2 As shown, the upper half of the thermal break connecting pipe 23 is located inside the mounting hole 11, and the lower half is located below the mounting opening. The bottom pipe 22 is entirely located below the mounting hole 11.

[0028] like Figure 1 , Figure 2 As shown, the outer wall of the thermal break connecting pipe 23 is provided with a reinforcing plate 27 that abuts against the lower end face of the top plate 1 of the structure. The reinforcing plate 27 is provided with screws 28 that are threaded to the top plate 1 of the structure to achieve a stable connection of the thermal break connecting pipe 23 and ensure overall stability.

[0029] like Figure 1 , Figure 2 As shown, a first waterproof and vapor barrier membrane 5 is provided at the outer edge of the lower end face of the reinforcing plate 27. The first waterproof and vapor barrier membrane 5 covers the screw 28 and is attached to the lower end face of the top plate 1 of the structure to achieve a seal at the connection position and avoid airtight leakage.

[0030] like Figure 1 , Figure 2As shown, the rainwater hopper 3 is located above the jacking pipe 21 and is connected to the jacking pipe 21. The rainwater hopper 3 adopts the siphon drainage principle and can automatically draw rainwater into the drainage bucket.

[0031] like Figure 1 , Figure 2 As shown, the thermal insulation grout filling layer 4 is set between the outer wall of the drainage pipe 2 and the inner wall of the mounting hole 11, and between the upper end face of the structural top plate 1 and the outer flap 24. At the same time, the telescopic bracket 25 is embedded in the thermal insulation grout filling layer 4, and the reinforcing plate 27 can serve as the bottom mold of the thermal insulation grout to ensure that the upper part is filled tightly and to achieve stable fixation of the drainage pipe 2.

[0032] Currently, the standard on-site rainwater inlet needs to be about 6cm higher than the finished surface of the structure. This is for details such as the lower waterproof vapor barrier membrane, insulation, slope leveling, and leveling of the rainwater inlet. Generally, the rainwater hopper 3 is a finished product without a support frame. Basically, a support frame is welded from steel bars or angle steel for fixing and height limitation. However, this support frame first needs to be welded on-site and is of fixed size, so it cannot be adjusted in real time according to changes in the elevation of the structural surface. At the same time, the support frame and rainwater hopper 3 are not treated with thermal break, which can easily cause heat loss. The support frame is too sharp and can easily damage the vapor barrier membrane and the upper waterproof membrane.

[0033] Therefore, by setting the drainage pipe 2 as a segmented type and setting the middle position as a broken bridge connecting pipe 23, the drainage pipe 2 is divided and broken bridge is applied under the premise of ensuring the applicability, durability and overall function of the original cast iron roof drainage device, thus solving the problem of heat loss in the building caused by the heat conduction of the traditional roof drainage device.

[0034] Meanwhile, the lower part of the drain pipe 2 does not need to be insulated with an insulation sleeve. Instead, a rigid insulation mortar filling layer 4 is used to ensure the overall stability of the drain pipe 2 during installation and subsequent use, and to solve the risk of leakage caused by vibration. This ensures energy saving while making the whole structure stable.

[0035] like Figure 1 , Figure 2 As shown, multiple gravity-type switch plates 211 are provided on the inner wall of the jacking pipe 21, and the multiple gravity-type switch plates 211 block the jacking pipe 21. The gravity-type switch plates 211 are rotatably connected to the inner wall of the jacking pipe 21, and an elastic element 212 is provided between the inner wall of the jacking pipe 21 and the upper end face of the gravity-type switch plate 211. The elastic element 212 is an elastic rope or a light spring.

[0036] When rainwater is discharged through drain pipe 2, the gravity of the rainwater will press the gravity switch plate 211 downward to flip it over, thus automatically opening the gravity switch plate 211. After the rainwater is discharged, the elastic element 212 pulls the gravity switch plate 211 to automatically reset, re-sealing the top pipe 21, thereby effectively reducing the heat loss caused by air circulation during non-drainage periods.

[0037] like Figure 1 As shown, the upper surface of the top slab 1 is provided with a leveling layer 6 surrounded by a thermal insulation mortar filling layer 4, a polystyrene board insulation layer 7 is provided on the leveling layer 6, a lightweight base material slope layer 8 is provided on the polystyrene board insulation layer 7, and a mortar protective layer 9 is provided on the lightweight base material slope layer 8.

[0038] like Figure 1 As shown, the polystyrene board insulation layer 7, the lightweight base material slope layer 8, and the mortar protective layer 9 are all set in an inclined shape on the side near the installation hole 11. The lower end of the inclined surface of the mortar protective layer 9 is flush with the outer edge of the rainwater hopper 3.

[0039] like Figure 1 As shown, a second waterproof and vapor barrier membrane 61 is provided between the top slab 1 and the leveling layer 6. The second waterproof and vapor barrier membrane 61 wraps the outer wall of the thermal insulation slurry filling layer 4 and covers the upper surface of the outer flap 24.

[0040] like Figure 1 As shown, a third waterproof vapor barrier 71 is provided between the leveling layer 6 and the polystyrene board insulation layer 7. The third waterproof vapor barrier 71 wraps the inner vertical surface of the polystyrene board insulation layer 7 and the lightweight base material slope layer 8, and covers the upper sloping surface of the lightweight base material slope layer 8.

[0041] like Figure 1 As shown, a waterproof membrane layer 91 is provided between the lightweight base material slope-finding layer 8 and the mortar protective layer 9. The waterproof membrane layer 91 extends to the upper end face of the outer flap 24 and the inner wall of the jacking pipe 21. A sealant 92 is provided between the rainwater hopper 3 and the waterproof membrane layer 91, and the sealant 92 is adhered to the inner vertical surface of the mortar protective layer 9.

[0042] Therefore, by setting a highly airtight roof structure, a stable seal between each layer of the structure can be achieved, preventing airtight leakage and ensuring the waterproof performance of the entire building system.

[0043] The specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An ultra-low energy building roofing drainage system characterized by: include: The top plate (1) of the structure is set horizontally and has a vertical through-hole (11); A drain pipe (2) is vertically inserted through the mounting hole (11). The drain pipe (2) includes a top pipe (21), a bottom pipe (22), and a thermal break connecting pipe (23). The upper end of the top pipe (21) is horizontally provided with an outward flap (24) located above the top plate (1) of the structure. The top pipe (21) and the bottom pipe (22) are both threaded to the inner sides of both ends of the thermal break connecting pipe (23). A rainwater hopper (3) is disposed above the jacking pipe (21) and is connected to the jacking pipe (21); The thermal insulation grout filling layer (4) is disposed between the outer wall of the drainage pipe (2) and the inner wall of the mounting hole (11), and between the upper end face of the structural top plate (1) and the outer flap (24).

2. A very low energy building roofing drainage system according to claim 1, characterized in that: The outer wall of the broken bridge connecting pipe (23) is provided with a reinforcing plate (27) that abuts against the lower end face of the top plate (1) of the structure, and the reinforcing plate (27) is provided with screws (28) that are threaded to the top plate (1) of the structure.

3. An ultra-low energy building roofing drainage system according to claim 2, characterized in that: A first waterproof and vapor barrier membrane (5) is provided at the outer edge of the lower end face of the reinforcing plate (27). The first waterproof and vapor barrier membrane (5) covers the screw (28) and is attached to the lower end face of the top plate (1) of the structure.

4. The ultra-low energy building roofing drainage system according to claim 1, wherein: The inner wall of the jacking pipe (21) is provided with a plurality of gravity-type switch plates (211), which block the jacking pipe (21). The gravity-type switch plates (211) are rotatably connected to the inner wall of the jacking pipe (21), and an elastic element (212) is provided between the inner wall of the jacking pipe (21) and the upper end face of the gravity-type switch plate (211).

5. The roof drainage system for ultra-low energy consumption buildings according to claim 1, characterized in that: The lower end face of the outer flap (24) is provided with a telescopic bracket (25), which is embedded in the thermal insulation slurry filling layer (4) and has a bolt (26) fixed to the upper end face of the top plate (1) of the structure at its lower end.

6. The ultra-low energy building roofing drainage system according to claim 1, wherein: The upper surface of the top plate (1) of the structure is provided with a leveling layer (6) surrounding the insulation mortar filling layer (4). A polystyrene board insulation layer (7) is provided on the leveling layer (6). A lightweight base material slope layer (8) is provided on the polystyrene board insulation layer (7). A mortar protective layer (9) is provided on the lightweight base material slope layer (8). The side of the polystyrene board insulation layer (7), the lightweight base material slope layer (8), and the mortar protective layer (9) near the mounting hole (11) are all arranged in an inclined shape. The lower end of the inclined surface of the mortar protective layer (9) is flush with the outer edge of the rainwater hopper (3).

7. An ultra-low energy building roofing drainage system according to claim 6, characterized in that: A second waterproof vapor barrier membrane (61) is provided between the top plate (1) of the structure and the leveling layer (6). The second waterproof vapor barrier membrane (61) wraps the outer wall of the thermal insulation slurry filling layer (4) and covers the upper surface of the outer flap (24).

8. An ultra-low energy building roofing drainage system according to claim 7, characterized in that: A third waterproof vapor barrier membrane (71) is provided between the leveling layer (6) and the polystyrene board insulation layer (7). The third waterproof vapor barrier membrane (71) wraps the inner surface of the polystyrene board insulation layer (7) and the lightweight base material slope layer (8), and covers the upper slope of the lightweight base material slope layer (8).

9. An ultra-low energy building roofing drainage system according to claim 8, characterized in that: A waterproof membrane layer (91) is provided between the lightweight base material slope-finding layer (8) and the mortar protective layer (9), and the waterproof membrane layer (91) extends to the upper end face of the outer flap (24) and the inner wall of the jacking pipe (21).

10. A very low energy building roofing drainage system according to claim 9, characterized in that: A sealant (92) is provided between the rainwater hopper (3) and the waterproof membrane layer (91).

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