Airtight structure of vertical pipe out of roof
By setting up a combination structure of waterproof and airtight membrane, asphalt hemp fiber layer, sealant and water-stop ring between the riser and the pre-embedded pipe, the sealing and heat insulation problems at the riser exiting the roof are solved, achieving effective waterproofing and heat insulation, and ensuring the sealing and heat transfer at the connection between the riser and the cast-in-place structure.
Patent Information
- Application Number
- CN202520206125.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In architectural design, there are issues with waterproofing and insulation at the roof riser, especially the sealing and heat transfer problems at the connection between the riser and the concrete structure, which have not been effectively resolved.
The system employs a combination of waterproof and airtight membranes, asphalt hemp fiber layers, sealant, insulation sleeves, and water-stop rings. By setting up multiple layers of sealing and insulation measures between the riser and the pre-embedded pipe, the system ensures the sealing and insulation performance of the riser and the cast-in-place structure.
It achieves effective sealing at the connection between the riser and the cast-in-place structure, preventing rainwater leakage, improving thermal insulation performance, avoiding heat transfer, and enhancing the waterproof and thermal insulation effects of the structure.
Smart Images
Figure CN223662796U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of roof riser sealing technology, and more particularly to an airtight structure for roof risers. Background Technology
[0002] In architectural design, pipes need to be installed extending from the roof for purposes such as roof drainage, indoor ventilation, and cable routing. During the design process, factors such as waterproofing and insulation at the location of the roof riser must be considered. Therefore, this patent provides a solution for waterproofing and insulation of the roof riser. Summary of the Invention
[0003] To address the aforementioned problems, this invention discloses an airtight structure for roof-mounted risers, comprising a cast-in-place body in which a pre-embedded pipe is vertically installed. A riser is inserted through the middle of the pre-embedded pipe, and a waterproof and airtight membrane is provided covering the lower sidewall of the riser. The other side of the waterproof and airtight membrane is attached to the lower end face of the cast-in-place body. The waterproof and airtight membrane provides a seal for the riser beneath the cast-in-place body.
[0004] The upper sidewall of the embedded pipe is covered with an asphalt-impregnated hemp fiber layer, and the other side of the asphalt-impregnated hemp fiber layer is attached to the upper surface of the cast-in-place body. Sealant is applied between the upper end of the embedded pipe and the riser. A second insulation sleeve is fitted over the asphalt-impregnated hemp fiber layer, and a second mortar layer is applied over the outer side of the second insulation sleeve. The asphalt-impregnated hemp fiber layer seals the space between the embedded pipe and the cast-in-place body, while the sealant seals the space between the riser and the embedded pipe. The second insulation sleeve and the second mortar layer further ensure the sealing effect.
[0005] Preferably, a water-stop ring is welded to the lower side wall of the embedded pipe, and the water-stop ring is located inside the cast-in-place body. The water-stop ring firstly prevents rainwater from seeping down through any gaps that may exist between the embedded pipe and the cast-in-place body, and secondly, the water-stop ring is fixedly connected to the reinforcing steel inside the cast-in-place body by welding.
[0006] Preferably, a first insulation sleeve is provided between the riser and the embedded pipe. The first insulation sleeve serves to insulate and slow down heat transfer between the indoor and outdoor areas.
[0007] Preferably, the upper surface of the cast-in-place body is provided with an insulation layer, the upper surface of the insulation layer is provided with a waterproof layer, and the upper surface of the waterproof layer is provided with a first mortar layer. The insulation layer, the waterproof layer, and the first mortar layer respectively serve the functions of roof insulation and waterproofing.
[0008] The beneficial effects of this invention are as follows:
[0009] 1. A waterproof and airtight membrane, an asphalt hemp fiber layer, a sealing layer, and a second mortar layer are provided. That is, a sealing structure is provided at both the top and bottom of the riser where it exits the cast-in-place body, ensuring its sealing effect. In addition, a delayed second insulation sleeve is set on the inner side of the second mortar layer, and a first insulation sleeve is set between the embedded pipe and the riser to ensure the insulation performance at this point.
[0010] 2. A water-stop ring is welded to the side wall of the pre-embedded pipe, which extends the path of rainwater infiltration. In addition, the pre-embedded pipe is confined to the cast-in-place structure to prevent problems such as loosening and falling off. Attached Figure Description
[0011] Figure 1 This is a cross-sectional schematic diagram of the present invention.
[0012] List of reference numerals in the attached diagram:
[0013] 1. Cast-in-place structure; 2. Waterproof and airtight membrane; 3. First insulation sleeve; 4. Riser; 5. Embedded pipe; 6. Waterstop ring; 7. Asphalt-impregnated hemp fiber layer; 8. Waterproof layer; 9. Insulation layer; 10. First mortar layer; 11. Second insulation sleeve; 12. Second mortar layer; 13. Sealant. Detailed Implementation
[0014] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0015] like Figure 1 As shown, a roof-mounted riser airtight structure includes a cast-in-place body 1, in which a pre-embedded pipe 5 is vertically arranged, and a riser 4 is inserted through the middle of the pre-embedded pipe 5. A waterproof and airtight membrane 2 is provided to cover the lower side wall of the riser 4, and the other side of the waterproof and airtight membrane 2 is attached to the lower end face of the cast-in-place body 1. That is, the waterproof and airtight membrane 2 seals the lower part of the riser 4.
[0016] An asphalt-impregnated hemp fiber layer 7 is attached to the upper side wall of the embedded pipe 5, and the other side of the asphalt-impregnated hemp fiber layer 7 is attached to the upper end face of the cast body 1. The asphalt-impregnated hemp fiber layer 7 is used for sealing between the embedded pipe 5 and the cast body 1. A sealant 13 is filled between the upper end of the embedded pipe 5 and the riser 4. The sealant 13 is used to seal between the riser 4 and the embedded pipe 5. A second insulation sleeve 11 is provided on the outside of the asphalt-impregnated hemp fiber layer 7 to provide insulation. A second mortar layer 12 is provided on the outside of the second insulation sleeve 11 to protect the inner second insulation sleeve 11 and to provide initial waterproofing.
[0017] A water-stop ring 6 is welded to the lower side wall of the pre-embedded pipe 5. The water-stop ring 6 is set to prevent rainwater from seeping vertically downward. The water-stop ring 6 is located inside the cast body 1. At the same time, the water-stop pipe 6 plays a role in limiting the position of the pre-embedded pipe 5 on the cast body 1.
[0018] A first insulation sleeve 3 is installed between the riser 4 and the pre-embedded pipe 5. Similarly, the first insulation sleeve 3 serves to keep the pipe warm.
[0019] An insulation layer 9 is provided on the upper surface of the cast body 1, which also serves to keep the body warm. A waterproof layer 8 is provided on the upper surface of the insulation layer 9, which is used to waterproof the structure. A first mortar layer 10 is provided on the upper surface of the waterproof layer 8, which protects the structure below and also provides initial waterproofing.
[0020] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.
Claims
1. An airtight structure for roof-mounted risers, comprising a cast-in-place body (1), characterized in that, A pre-embedded pipe (5) is vertically installed in the casting body (1), and a riser pipe (4) is inserted through the middle of the pre-embedded pipe (5). A waterproof and air-tight membrane (2) is installed on the lower side wall of the riser pipe (4), and the other side of the waterproof and air-tight membrane (2) is attached to the lower end face of the casting body (1). The upper side wall of the pre-embedded pipe (5) is attached with an asphalt hemp fiber layer (7), and the other side of the asphalt hemp fiber layer (7) is attached to the upper end face of the casting body (1). The upper end of the pre-embedded pipe (5) and the riser (4) are filled with sealant (13). The outer side of the asphalt hemp fiber layer (7) is fitted with a second insulation sleeve (11), and the outer side of the second insulation sleeve (11) is fitted with a second mortar layer (12).
2. The airtight structure for roof-mounted risers according to claim 1, characterized in that: A water-stop ring (6) is welded to the lower side wall of the pre-embedded pipe (5), and the water-stop ring (6) is located inside the casting body (1).
3. The airtight structure for roof-mounted risers according to claim 1, characterized in that: A first insulation sleeve (3) is provided between the riser (4) and the pre-embedded pipe (5).
4. The airtight structure for roof-mounted risers according to claim 1, characterized in that: The upper surface of the casting body (1) is provided with a heat insulation layer (9), the upper surface of the heat insulation layer (9) is provided with a waterproof layer (8), and the upper surface of the waterproof layer (8) is provided with a first mortar layer (10).