Roof venting device
Patent Information
- Application Number
- CN202522179527.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-15
AI Technical Summary
这种做法存在显著缺陷:首先,防水层在排汽管根部的处理复杂,切割、上翻、密封等工序均为手工操作,易形成薄弱环节,成为漏水隐患;其次,大量凸出屋面的排汽管影响人员通行与设备安装,且在后续施工或使用中极易被碰撞损坏,连带破坏防水层;最后,林立的排汽管严重影响屋面美观
[0010] This invention completely eliminates the risk of leakage at the root of traditional vertical exhaust pipes by embedding the exhaust pipe network entirely into the special pipe groove of the insulation layer and using the building's existing pipe shafts and flue as exhaust channels, thus greatly improving the integrity and reliability of the waterproof layer.
Smart Images

Figure CN224918755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roof ventilation technology in building engineering, and in particular to a roof ventilation device. Background Technology
[0002] Currently, building roofs commonly use vertical vent pipes to remove moisture from the insulation layer. The traditional method involves drilling holes in the waterproofing layer and extending the vent pipes directly over the roof. This approach has significant drawbacks: First, the treatment of the waterproofing layer at the base of the vent pipes is complex, with cutting, turning up, and sealing all done manually, easily creating weak points and potential leaks. Second, numerous vent pipes protruding from the roof obstruct pedestrian traffic and equipment installation, and are easily damaged by impacts during subsequent construction or use, potentially damaging the waterproofing layer as well. Finally, the numerous vent pipes severely detract from the roof's aesthetics. Therefore, there is an urgent need for a venting device that can fundamentally avoid damaging the waterproofing layer and improve the overall integrity and safety of the roof. Summary of the Invention
[0003] The present invention aims to address the shortcomings of the prior art by providing a roof ventilation device.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a roof venting device, wherein a first leveling layer is provided on the top of the roof concrete structure layer, an insulation layer is provided on the top of the first leveling layer, a second leveling layer is provided on the top of the insulation layer, a horizontal waterproof layer is provided on the top of the second leveling layer, and a vertical waterproof layer connected to the horizontal waterproof layer is provided on the inner side of the parapet wall. The device includes a connecting seat integrally formed and connected to the sidewalls of the pipe shaft and the flue, and a venting pipe network laid within the insulation layer. The insulation layer consists of upper and lower insulation boards, with a pipe groove opened between the opposite surfaces of the upper and lower insulation boards. The venting pipe network is embedded in the pipe groove and consists of two main venting pipes and several branch venting pipes connected by pipe connectors. A steam inlet channel is provided within the connecting seat, and waterproof wing plates are provided on both sides. A steam outlet pipe is detachably and sealed at the outlet of the steam inlet channel, and a detachably and sealed connection is made between the inlet and the main venting pipe.
[0005] Specifically, the portion of the connector embedded in the side wall of the pipe well and flue is equipped with a water-stop ring.
[0006] Specifically, a first connecting plate is provided at the inlet of the steam outlet pipe, and a first sealing gasket is provided on the side of the first connecting plate facing the waterproof wing plate. The first connecting plate and the waterproof wing plate are bolted together and sealed by the first sealing gasket.
[0007] Specifically, a second connecting plate is provided at the outlet of the main exhaust pipe, and a second sealing gasket is provided on the side of the second connecting plate facing the waterproof wing plate. The second connecting plate and the waterproof wing plate are bolted together and sealed by the second sealing gasket.
[0008] Notably, a rainproof cap is installed at the outlet of the steam pipe.
[0009] The beneficial effects of this utility model are:
[0010] This invention completely eliminates the risk of leakage at the root of traditional vertical exhaust pipes by embedding the exhaust pipe network entirely into the special pipe groove of the insulation layer and using the building's existing pipe shafts and flue as exhaust channels, thus greatly improving the integrity and reliability of the waterproof layer.
[0011] By adopting prefabricated connecting seats and integral molding with the building structure, the exhaust system and the main structure are seamlessly integrated, resulting in good structural stability. Furthermore, the most critical sealing interface is transferred from the complex "pipe-hole" interface to the "plate-plate" interface, which is easier to standardize, thus providing better sealing performance.
[0012] The rainproof cap at the end of the steam outlet pipe can effectively prevent rainwater and debris from flowing back in, ensuring the long-term stable operation of the exhaust system.
[0013] The entire device is concealed within the roof structure and vertical passageways, with a flat, unobstructed, aesthetically pleasing, and clean roof surface that does not interfere with any roof activities. Attached Figure Description
[0014] Figure 1 This is a schematic diagram showing the location of the exhaust pipe network of this utility model;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;
[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0017] In the diagram: 1-First leveling layer; 2-Insulation layer; 3-Second leveling layer; 4-Horizontal waterproof layer; 5-Vertical waterproof layer; 6-Pipe shaft; 7-Smoke and air duct; 8-Connecting seat; 81-Steam inlet passage; 82-Waterproof wing plate; 83-Waterproof ring; 9-Steam exhaust network; 91-Main exhaust pipe; 92-Branch exhaust pipe; 93-Second connecting plate; 94-Second sealing gasket; 10-Steam outlet pipe; 101-First connecting plate; 102-First sealing gasket; 103-Rainproof pipe cap;
[0018] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0020] like Figures 1-3As shown, a roof venting device is provided, wherein a first leveling layer 1 is provided on the top of the roof concrete structure layer, an insulation layer 2 is provided on the top of the first leveling layer 1, a second leveling layer 3 is provided on the top of the insulation layer 2, a horizontal waterproof layer 4 is provided on the top of the second leveling layer 3, and a vertical waterproof layer 5 connected to the horizontal waterproof layer 4 is provided on the inner side of the parapet wall.
[0021] The exhaust device includes a connecting seat 8 that is integrally formed and connected to the side walls of the pipe well 6 and the flue duct 7, and an exhaust pipe network 9 laid in the insulation layer 2. The insulation layer 2 is composed of upper and lower insulation boards, and a pipe groove is opened between the opposite surfaces of the upper and lower insulation boards. The exhaust pipe network 9 is embedded in the pipe groove and is composed of two main exhaust pipes 91 and several branch exhaust pipes 92 connected by pipe connectors.
[0022] First, a leveling layer 1 is constructed on the concrete roof structure to obtain a smooth base layer. Then, an insulation layer 2, consisting of two layers of insulation boards, is laid. On the opposite surfaces of the two insulation boards, grooves matching the shape of the exhaust pipe network 9 are pre-cut or imprinted. The exhaust pipe network 9 is completely "embedded" inside the insulation layer 2, ensuring precise fixation of its position and preventing displacement during construction. The exhaust pipe network 9 is assembled within the grooves from the main exhaust pipe 91, branch exhaust pipes 92, and pipe fittings (such as tees and crosses). The branch exhaust pipes 92 have several vent holes drilled in their walls and are wrapped with breathable materials such as geotextile to collect moisture from the insulation layer 2 and channel it to the main exhaust pipe 91.
[0023] The connecting seat 8 is provided with a steam inlet channel 81 and waterproof wing plates 82 on both sides. The part of the connecting seat 8 embedded in the side wall of the pipe well 6 and the flue duct 7 is provided with a water-stop ring 83.
[0024] When the connecting seat 8 is installed in the concrete sidewall of the construction pipe shaft 6 and flue duct 7, it is integrally formed with the structure through pre-embedding. The connecting seat 8 has a steam inlet channel 81 inside, and an outwardly extending waterproof wing plate 82 on its outer side. This transforms the connection point between the future exhaust pipe and the vertical channel from a "hole" that requires on-site drilling and is difficult to seal into a "standard component" that is poured synchronously with the structure and has a precise interface. This fundamentally solves the problems of inaccurate drilling dimensions and leakage due to insufficient concrete vibration, achieving precise pre-embedding of the interface between the structure and equipment. To further enhance the anti-leakage capability between the connecting seat 8 and the concrete, a water-stop ring 83 is installed in its embedded part of the structure. This greatly extends the possible path of water penetration; even if external moisture attempts to infiltrate along the tiny gaps between the connecting seat 8 and the concrete, it will be effectively blocked by the water-stop ring 83, ensuring the structural self-waterproofing performance of the connection node.
[0025] The outlet of the steam inlet channel 81 is detachably and sealingly connected to a steam outlet pipe 10. The inlet of the steam outlet pipe 10 is provided with a first connecting plate 101. The first connecting plate 101 is provided with a first sealing gasket 102 on the side facing the waterproof wing plate 82. The first connecting plate 101 and the waterproof wing plate 82 are bolted together and sealed by the first sealing gasket 102. The outlet of the steam outlet pipe 10 is provided with a rainproof pipe cap 103, which can effectively prevent rainwater, sand or debris from flowing back into the entire exhaust system through the steam outlet pipe 10, avoiding system blockage or failure, while not affecting the normal discharge of water vapor, ensuring the long-term effective operation of the device under various weather conditions.
[0026] The inlet of the steam inlet passage 81 is detachably and sealed to the main exhaust pipe 91. The outlet of the main exhaust pipe 91 is provided with a second connecting plate 93. The second connecting plate 93 is provided with a second sealing gasket 94 on the side facing the waterproof wing plate 82. The second connecting plate 93 and the waterproof wing plate 82 are bolted together and sealed by the second sealing gasket 94.
[0027] A second connecting plate 93 is fixed at the outlet end of the main exhaust pipe 91, and a first connecting plate 101 is fixed at the inlet end of the exhaust pipe 10. During installation, the second sealing gasket 94 and the first sealing gasket 102 are placed between the second connecting plate 93 and the first connecting plate 101 and the waterproof flange 82, respectively, and then bolts are used to fasten them together with the waterproof flange 82. This transforms the dynamic, circular "pipe-hole" seal into a static, planar "plate-plate" seal, resulting in an order-of-magnitude improvement in sealing reliability. It also enables modular installation and disassembly of the exhaust pipe network 9, greatly facilitating future maintenance and repair.
[0028] When this utility model is in operation, the water vapor generated in the insulation layer 2 enters the exhaust pipe network 9 through the small hole on the branch exhaust pipe 92, and after being collected in the main exhaust pipe 91, it is discharged into the pipe well 6 or the flue duct 7 through the steam inlet channel 81 of the connecting seat 8 and the steam outlet pipe 10. Finally, it is discharged into the atmosphere by utilizing the "chimney effect" of the building's vertical passage, thus completing the entire exhaust process.
[0029] This utility model, through modular and integrated structural design, deeply integrates the ventilation system with the building's inherent structure, achieving the beneficial effects of not damaging the integrity of the roof waterproofing layer, high-efficiency ventilation, convenient construction, easy maintenance, and a clean and beautiful roof.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A roof venting device, wherein a first leveling layer (1) is provided on top of the roof concrete structural layer, an insulation layer (2) is provided on top of the first leveling layer (1), a second leveling layer (3) is provided on top of the insulation layer (2), a horizontal waterproof layer (4) is provided on top of the second leveling layer (3), and a vertical waterproof layer (5) connected to the horizontal waterproof layer (4) is provided on the inner side of the parapet wall, characterized in that, It includes a connecting seat (8) integrally formed and connected to the side walls of the pipe well (6) and the flue (7) and the exhaust pipe network (9) laid in the insulation layer (2). The insulation layer (2) is composed of upper and lower insulation boards, and a pipe groove is opened between the opposite surfaces of the upper and lower insulation boards. The exhaust pipe network (9) is embedded in the pipe groove and is composed of two main exhaust pipes (91) and several branch exhaust pipes (92) connected by pipe connectors. The connecting seat (8) is provided with an inlet channel (81) and waterproof wing plates (82) on both sides. The outlet of the inlet channel (81) is detachably and sealed with an outlet pipe (10), and the inlet is detachably and sealed with the main exhaust pipe (91).
2. The roof venting device according to claim 1, characterized in that, The portion of the connecting seat (8) embedded in the side wall of the pipe well (6) and the flue (7) is provided with a water-stop ring (83).
3. A roof venting device according to claim 1, characterized in that, A first connecting plate (101) is provided at the inlet of the steam outlet pipe (10). A first sealing gasket (102) is provided on the side of the first connecting plate (101) facing the waterproof wing plate (82). The first connecting plate (101) and the waterproof wing plate (82) are bolted together and sealed by the first sealing gasket (102).
4. A roof venting device according to claim 1, characterized in that, A second connecting plate (93) is provided at the outlet of the main exhaust pipe (91). A second sealing gasket (94) is provided on the side of the second connecting plate (93) facing the waterproof wing plate (82). The second connecting plate (93) and the waterproof wing plate (82) are bolted together and sealed by the second sealing gasket (94).
5. A roof venting device according to claim 1, characterized in that, A rainproof cap (103) is provided at the outlet of the steam pipe (10).
