Roof gutter inlet device with exhaust function
By designing breathable drain pipes and breathable grooves in the roof rainwater outlet device, combining drainage and exhaust functions, the problem of low roof exhaust effect is solved, and more efficient gas discharge and waterproofing effects are achieved, and the service life of the roof is extended.
Patent Information
- Application Number
- CN202421795808.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The exhaust effect of the existing roof structure is relatively low, especially the extruded polystyrene plate gas sandwiched between the waterproof insulation layer is difficult to discharge, resulting in the roof exhaust level needing to be improved.
A roof rainwater outlet device with exhaust function is designed, and a breathable drain pipe is used to penetrate the roof, and a breathable groove is opened in the part of the breathable drain pipe close to the extruded polystyrene board. Some of the extruded polystyrene boards are exposed through the breathable groove to achieve gas discharge. At the same time, a water barrier and an air collecting tank are installed on the top of the breathable drain pipe to form an effective breathable system.
Through the design of the breathable tank and the air collecting tank, the functions of drainage and exhaust are effectively combined, the exhaust effect of the roof is improved, the accumulation of water vapor is prevented, and the service life of the roof is extended.
Smart Images
Figure CN222796891U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of roof exhaust, and in particular to a roof rainwater inlet device with exhaust function. Background Art
[0002] At present, the structure of the entire roof from inside to outside is: reinforced concrete floor, integrated waterproof and thermal insulation spray, extruded polystyrene board, integrated waterproof and thermal insulation spray, polyvinyl chloride plastic film, and fine stone concrete surface layer.
[0003] However, the air permeability of the integrated waterproof and thermal insulation spray is low, especially the gas from the extruded polystyrene board sandwiched between two layers of the integrated waterproof and thermal insulation spray is not easy to discharge, so the exhaust degree of the roof needs to be improved. Utility Model Content
[0004] In order to improve the exhaust degree of the overall roof structure, the present application provides a roof rainwater inlet device with an exhaust function.
[0005] The present application provides a roof rainwater inlet device with exhaust function, which adopts the following technical solution:
[0006] A roof rainwater inlet device with an exhaust function comprises a breathable drain pipe, wherein the breathable drain pipe runs through the roof, wherein the lower end of the breathable drain pipe is connected to a rainwater downpipe on the roof, wherein a breathable groove is provided at a portion of the breathable drain pipe close to an extruded polystyrene board on the roof, wherein a portion of the extruded polystyrene board is exposed through the breathable groove, wherein a water retaining portion is installed at the top of the breathable drain pipe, wherein the water retaining portion extends into the interior of the breathable drain pipe, wherein an air collecting groove is formed between the water retaining portion and the breathable drain pipe, wherein the air collecting groove is connected to the breathable groove.
[0007] By adopting the above technical scheme, the gas in the extruded polystyrene board can be discharged through the ventilation groove, which increases the exhaust effect of the roof as a whole. Because the ventilation drain pipe and the rainwater downpipe are connected, rainwater on the roof enters the rainwater downpipe through the ventilation drain pipe. The water retaining part can block water from the ventilation groove, and there is also an air collecting groove between the water retaining part and the ventilation drain pipe. When the gas is discharged from the ventilation groove into the air collecting groove, a cold bridge effect will occur if there is a temperature difference between the building and the ventilation drain pipe. The cold bridge effect refers to the fact that in a building, due to the heat transfer coefficient of certain parts (such as exterior wall corners, interior and exterior wall intersection angles, overlap angles between roof and exterior wall, etc.) being significantly greater than that of other parts, heat is quickly transferred in these parts, thereby forming water mist on the high-temperature side of the room and adsorbed on the wall. In this application, after the cold bridge effect occurs between the roof and the ventilation drain pipe, the water mist condenses into condensed water in the rain shield and flows downward along the rain shield.
[0008] Optionally, the water retaining part includes a first retaining ring and a second retaining ring, the outer peripheral side of the first retaining ring is fixedly connected to the inner wall of the breathable drainage pipe, the inner peripheral side of the first retaining ring is fixedly connected to an axial end of the second retaining ring, the central axes of the first retaining ring and the second retaining ring are perpendicular to each other, and the second retaining ring and the breathable drainage pipe are coaxially arranged.
[0009] By adopting the above technical solution, the connection between the first retaining ring and the second retaining ring can play an effective waterproof role.
[0010] Optionally, the lower end of the second retaining ring is connected to an annular connecting plate, the connecting plate is connected to a third retaining ring, the second retaining ring and the third retaining ring are coaxially arranged, and a water collecting trough is formed between the second retaining ring, the connecting plate and the third retaining ring.
[0011] By adopting the above technical solution, rainwater can be collected and temporarily stored before falling into the breathable drainage pipe. The accumulated water in the sump has a cooling effect on the water retaining part and the third retaining ring. When the roof gas encounters the water retaining part when being discharged, condensation water is easily formed on the outer peripheral side of the second retaining ring, thereby enhancing the cold bridge effect. The sump can also slow down the rainwater discharge speed to a certain extent, thereby reducing the pressure on the downstream drainage system.
[0012] Optionally, the connecting plate is an arc-shaped structure, and the arc opening of the connecting plate faces upward.
[0013] The adoption of the above technical solution is conducive to rainwater collection.
[0014] Optionally, the air-permeable drainage pipe includes two straight sections with different inner diameters and a variable diameter section with a gradually decreasing inner diameter, and both ends of the variable diameter section are coaxially fixedly connected to the two straight sections respectively.
[0015] By adopting the above technical solution, the air-permeable drainage pipe can gradually accelerate the water flow speed during the drainage process and improve the drainage efficiency. At the same time, the design of the variable diameter section can also reduce the turbulence and eddy current phenomenon of the water flow in the pipe, reduce noise and vibration, and improve the comfort of use.
[0016] Optionally, a grate is also installed at the pipe opening of the air-permeable drainage pipe.
[0017] By adopting the above technical solution, the grate can effectively prevent large particles of debris from entering the air-permeable drainage pipe, preventing blockage. At the same time, the grate also has a certain filtering effect, which can reduce the wear and corrosion of the air-permeable drainage pipe by impurities and extend its service life.
[0018] Optionally, a positioning portion is installed on the grate, and the positioning portion is located in the air-permeable drainage pipe.
[0019] By adopting the above technical solution, not only the stable installation position of the grate on the air-permeable drainage pipe is ensured, but also the grate is prevented from loosening or falling off due to vibration during long-term use. At the same time, the positioning part also has a certain guiding effect, so that rainwater can pass through the grate more smoothly into the air-permeable drainage pipe.
[0020] Optionally, the positioning portion is a positioning ring.
[0021] Optionally, a plurality of ventilation grooves are arranged on the ventilation exhaust pipe at intervals along the circumferential direction.
[0022] By adopting the above technical solution, a plurality of ventilation grooves are arranged on the ventilation exhaust pipe at intervals along the circumferential direction. This design makes the distribution of the ventilation grooves more uniform and reasonable, which is conducive to improving the overall ventilation performance.
[0023] Optionally, two waterproof rings are coaxially arranged on the outer peripheral side of the breathable drainage pipe, and the two waterproof rings are respectively located in two integrated waterproof and thermal insulation sprays of the roof, and a space is left between the two waterproof rings for the extruded polystyrene board to be inserted.
[0024] By adopting the above technical solution, when the air-permeable drainage pipe is pre-buried in the roof, the waterproof ring has a waterproof penetration effect on the connection between the air-permeable drainage pipe and the roof.
[0025] In summary, the present application includes at least one of the following beneficial effects:
[0026] 1. By setting up ventilation slots and air collecting slots, the functions of drainage and exhaust are effectively combined, which not only ensures the dryness of the roof but also prevents the accumulation of water vapor, thereby extending the service life of the roof;
[0027] 2. Through reasonable structural design, such as the setting of water retaining parts and water collecting troughs, it is possible to ensure exhaust while effectively preventing rainwater from entering the ventilation groove, thus ensuring the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is a schematic cross-sectional view of the overall structure of an embodiment of the present application;
[0029] Figure 2 is a cross-sectional view of the distribution of the ventilation grooves on the ventilation drainage pipe of an embodiment of the present application;
[0030] Figure 3 It is a structural schematic diagram of the cooperation between the positioning portion and the third retaining ring in an embodiment of the present application.
[0031] Explanation of the reference numerals in the accompanying drawings: 1. reinforced concrete floor slab; 2. integrated waterproof and thermal insulation spraying; 3. extruded polystyrene board; 4. polyvinyl chloride plastic film; 5. fine stone concrete surface layer; 6. breathable drainage pipe; 61. breathable groove; 62. straight tube section; 63. variable diameter section; 7. water retaining part; 71. first retaining ring; 72. second retaining ring; 8. air collecting trough; 9. connecting plate; 10. third retaining ring; 100. water collecting trough; 11. grate; 12. positioning part; 20. waterproof ring. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-2 This application is described in further detail.
[0033] The embodiment of the present application discloses a roof rainwater inlet device with an exhaust function.
[0034] Reference Figure 1 , this embodiment discloses a roof rainwater outlet device with exhaust function, mainly including a breathable drain pipe 6. The breathable drain pipe 6 runs through the roof, and its lower end is connected with the rainwater downpipe on the roof. The structure of the entire roof from inside to outside is respectively: reinforced concrete floor 1, waterproof and thermal insulation integrated spray 2, extruded polystyrene board 3, waterproof and thermal insulation integrated spray 2, polyvinyl chloride plastic film 4, fine stone concrete surface layer 5. In the part of the breathable drain pipe 6 close to the roof extruded polystyrene board 3, a breathable groove 61 is specially designed so that part of the extruded polystyrene board 3 can be exposed through this groove to achieve a breathable effect. At the top of the breathable drain pipe 6, a water retaining part 7 is installed, and this water retaining part 7 extends to the inside of the breathable drain pipe 6, and together with the breathable drain pipe 6, an air collecting groove 8 is formed. This air collecting groove 8 is connected to the above-mentioned breathable groove 61, thereby forming an effective ventilation system.
[0035] Reference Figure 1 The water retaining part 7 is composed of a first retaining ring 71 and a second retaining ring 72 connected to each other, wherein the outer peripheral side of the first retaining ring 71 is firmly fixed to the inner wall of the air-permeable drainage pipe 6, and the inner peripheral side thereof is tightly connected to one end of the second retaining ring 72. The central axes of the first retaining ring 71 and the second retaining ring 72 are perpendicular to each other, and the second retaining ring 72 is coaxially arranged with the air-permeable drainage pipe 6. This design not only enhances the stability of the structure, but also effectively guides the direction of water flow and air flow.
[0036] Reference Figure 1In this embodiment, an annular connecting plate 9 is further provided at the lower end of the second retaining ring 72, and the other end of the connecting plate 9 is connected to a third retaining ring 10. The second retaining ring 72 and the third retaining ring 10 are coaxially arranged, and they form a water collecting trough 100 together with the connecting plate 9. The main function of the water collecting trough 100 is to collect rainwater on the roof. There is often water accumulation in the water collecting trough 100, and the temperature of the accumulated water is generally lower than the outdoor temperature. The accumulated water reduces the temperature of the second retaining ring 72, so that the water vapor in the gas collecting trough 8 can better form condensed water and then flow down along the second retaining ring 72.
[0037] In addition, the connecting plate 9 is specially designed to be an arc-shaped structure, with its arc opening facing upwards. Such a design enables water drops to flow into the water collecting tank 100 more smoothly along the arc surface, thereby improving the water collecting efficiency.
[0038] Specifically, the first retaining ring 71 and the second retaining ring 72, the connecting plate 9 and the third retaining ring 10 are designed as an integrated structure, which means that they are formed by the same material and in the same manufacturing process. This integrated design significantly enhances the stability and durability of the structure, so that the roof rainwater inlet device with exhaust function can maintain its excellent performance for a longer period of time.
[0039] The ventilation and drainage pipe 6 of this embodiment is composed of two straight sections 62 and a diameter-reducing section 63. The inner diameters of the two straight sections 62 are different, and the two ends of the diameter-reducing section 63 are coaxially fixedly connected to a straight section 62 respectively, and the straight section 62 with a larger inner diameter is located above the straight section 62 with a smaller inner diameter, and the inner diameter of the diameter-reducing section 63 gradually decreases from top to bottom.
[0040] Reference Figure 1 and Figure 2 The ventilation grooves 61 are evenly spaced around the straight section 62 with a large outer diameter. The third retaining ring 10 is located above the variable diameter section 63. The variable diameter section 63 is set so that when rainwater falls into the ventilation drainage pipe 6, the rainwater can only flow downward along the inner wall of the variable diameter section 63.
[0041] Reference Figure 1 The air-permeable drainage pipe 66 is pre-buried on the roof, and two waterproof rings 20 are installed on the outer peripheral side of the air-permeable drainage pipe 6. The waterproof ring 20 and the air-permeable drainage pipe 6 are coaxially arranged. The waterproof ring 20 is respectively embedded in two waterproof and thermal insulation integrated spray coatings 22. When spraying the waterproof and thermal insulation layer, the spray coating covers all surfaces of the waterproof ring 20. The extruded polystyrene board 3 is inserted into the gap left between the two waterproof rings 20. The setting of the waterproof ring 20 is mainly to prevent water from penetrating the connection between the air-permeable drainage pipe 6 and the roof. If the water on the roof surface really enters the roof, the waterproof ring can increase the flow path of the water.
[0042] Reference Figure 3In this embodiment, a grate 11 is further installed on the ventilation drain pipe 6. The lower surface of the grate 11 is attached to the first retaining ring 71, and its main function is to prevent large debris from entering the drain pipe, thereby ensuring smooth ventilation and drainage.
[0043] In addition, in order to stabilize the position of the grate 11 in the air-permeable drainage pipe 6, a positioning portion 12 is specially provided on the grate 11, and the positioning portion 12 is designed to be a structure that can extend into the air-permeable drainage pipe 6. Specifically, the positioning portion 12 can be an annular positioning ring, and the outer circumference of the positioning ring is in contact with the inner circumference of the third retaining ring 10, thereby ensuring the stable position of the grate 11.
[0044] Implementation principle of a roof rainwater inlet device with exhaust function in an embodiment of the present application:
[0045] The water vapor on the roof enters the air collecting trough 8 through the exposed part of the extruded polystyrene board 3, namely the air groove 61, and is then discharged. When rainwater enters the breathable drain pipe 6, the specific arrangement of the first baffle ring 71 and the second baffle ring 72 can effectively guide the rainwater to the lower part of the drain pipe while preventing it from entering the air collecting trough 8. Some rainwater can also be collected in the water collecting trough 100. The temperature of the accumulated water is generally lower than the outdoor temperature. The accumulated water reduces the temperature of the second baffle ring 72, so that the water vapor in the air collecting trough 8 can better form condensed water and then flow downward along the second baffle ring 72.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A roof rainwater inlet device with exhaust function, characterized in that: The invention comprises a ventilating drainage pipe (6), wherein the ventilating drainage pipe (6) passes through the roof, wherein the lower end of the ventilating drainage pipe (6) is connected to a rainwater downpipe on the roof, wherein a ventilating groove (61) is provided at a portion of the ventilating drainage pipe (6) close to an extruded polystyrene board (3) on the roof, wherein a portion of the extruded polystyrene board (3) is exposed through the ventilating groove (61), wherein a water retaining portion (7) is installed at the top of the ventilating drainage pipe (6), wherein the water retaining portion (7) extends into the interior of the ventilating drainage pipe (6), wherein an air collecting groove (8) is formed between the water retaining portion (7) and the ventilating drainage pipe (6), wherein the air collecting groove (8) is connected to the ventilating groove (61).
2. A roof rainwater inlet device with exhaust function according to claim 1, characterized in that: The water retaining part (7) comprises a first retaining ring (71) and a second retaining ring (72); the outer peripheral side of the first retaining ring (71) is fixedly connected to the inner wall of the air-permeable drainage pipe (6); the inner peripheral side of the first retaining ring (71) is fixedly connected to an axial end of the second retaining ring (72); the central axes of the first retaining ring (71) and the second retaining ring (72) are perpendicular to each other; and the second retaining ring (72) and the air-permeable drainage pipe (6) are coaxially arranged.
3. A roof rainwater inlet device with exhaust function according to claim 2, characterized in that: The lower end of the second retaining ring (72) is connected to an annular connecting plate (9), the connecting plate (9) is connected to a third retaining ring (10), the second retaining ring (72) and the third retaining ring (10) are coaxially arranged, and a water collecting trough (100) is formed between the second retaining ring (72), the connecting plate (9) and the third retaining ring (10).
4. A roof rainwater inlet device with exhaust function according to claim 3, characterized in that: The connecting plate (9) is an arc-shaped structure, and the arc opening of the connecting plate (9) faces upwards.
5. The roof rainwater inlet device with exhaust function according to claim 1, characterized in that: The air-permeable drainage pipe (6) comprises two straight tube sections (62) with different inner diameters and a diameter-reducing section (63) with a gradually decreasing inner diameter, and the two ends of the diameter-reducing section (63) are respectively coaxially fixedly connected to the two straight tube sections (62).
6. The roof rainwater inlet device with exhaust function according to claim 2, characterized in that: The pipe opening of the ventilation and drainage pipe (6) is also provided with a grate (11).
7. A roof rainwater inlet device with exhaust function according to claim 6, characterized in that: A positioning portion (12) is mounted on the grate (11), and the positioning portion (12) is located inside the air-permeable drainage pipe (6).
8. The roof rainwater inlet device with exhaust function according to claim 7, characterized in that: The positioning portion (12) is a positioning ring, and the positioning ring is in contact with the inner circumference of the second retaining ring (72).
9. The roof rainwater inlet device with exhaust function according to claim 1, characterized in that: A plurality of ventilation grooves (61) are arranged on the ventilation exhaust pipe at intervals along the circumferential direction.
10. The roof rainwater inlet device with exhaust function according to claim 1, characterized in that: Two waterproof rings (20) are coaxially arranged at intervals on the outer circumference of the air-permeable drainage pipe (6); the two waterproof rings (20) are respectively located in two integrated waterproof and thermal insulation spray coatings (2) of the roof; and a space is left between the two waterproof rings (20) for the extruded polystyrene board (3) to be inserted.