Roof-penetrating pipeline anti-leakage structure
By installing a multi-layered waterproof structure and a sloping surface design at the junction of the pipes and the roof, the problem of leakage at the pipe joints was solved, thereby improving the waterproofing effect and construction quality.
Patent Information
- Application Number
- CN202520555057.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing technologies, the waterproofing structure of outdoor pipes penetrating roofs is easily affected by construction quality and daily environment, which can lead to cracks at the joints, causing rainwater leakage and affecting use.
At the junction of the pipe and the roof, a pipe root base, a rainproof ring, a base waterproof layer, and an additional waterproof layer are installed to form a multi-layer waterproof structure. A slope design from the inside out is adopted to guide rainwater out, while a C20 concrete truncated cone is used to enhance stability.
It effectively prevents rainwater leakage, enhances stability and durability, reduces the risk of cracking, extends service life, and improves construction quality and economy.
Smart Images

Figure CN223924110U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a roof-penetrating pipeline construction technology field, especially to a roof-penetrating pipeline anti-seepage structure. BACKGROUND
[0002] In recent years, with the acceleration of urban construction speed and the continuous expansion of scale in China, the demand for new technology and new process in the construction process is increasing. Construction enterprises urgently need to introduce new technology, new tooling and other technical measures to reduce resource consumption, improve construction efficiency, enlarge the gap between investment and output, and improve engineering construction quality.
[0003] At present, the waterproof treatment of outdoor roof-penetrating pipeline mainly adopts two structures of extending the roof waterproof layer to the outer wall of the pipeline or adding a waterproof additional layer at the pipeline penetration position. However, the obvious disadvantage of the above two waterproof treatment structures is that the waterproof layer and the pipeline joint are easily affected by the construction quality and daily sun and rain, causing cracks at the joint, rainwater seepage along the pipeline periphery, and rainwater seepage around the roof pipeline, which seriously affects the normal use of users. SUMMARY
[0004] The utility model aims at the defects of the prior art and provides a roof-penetrating pipeline anti-seepage structure
[0005] To achieve the above purpose, the utility model can adopt the following technical scheme:
[0006] The roof-penetrating pipeline anti-seepage structure comprises a pipeline body vertically penetrating the roof, a pipe root base attached to the outer wall of the pipeline body on the upper end of the hole of the roof, a rainproof ring attached to the pipeline body above the pipe root base for shielding, and the top surfaces of the pipe root base and the rainproof ring are both inclined downward from inside to outside; a base waterproof layer is attached to the pipe root base, the upper edge of the base waterproof layer extends upward to form a waterproof layer upper extension section covering the pipeline body, and the lower edge extends outward to form a waterproof layer outer extension section flatly laid on the roof; an additional waterproof layer is attached to the outer wall of the pipeline body between the pipe root base and the rainproof ring, and the lower end of the additional waterproof layer is attached and pressed to the outer side of the waterproof layer upper extension section.
[0007] Specifically, the pipe root base is a C20 concrete conical table poured on the roof top surface, the height of the C20 concrete conical table is 300mm, and the distance between the outer edge of the bottom and the outer wall of the pipe body is 500mm; and the rainproof ring is an umbrella-shaped ring fixedly connected to the outer wall of the pipe body, the height of the umbrella-shaped ring is 100mm, and the ring width is 150mm; at this time, the vertical height between the top end of the pipe root base and the bottom edge of the umbrella-shaped ring is 700mm, and the height of the waterproof layer of the base extending upwards to cover the waterproof layer extending section of the pipe body is 100mm.
[0008] Further, at least two groups of fastening clamps are clamped on the additional waterproof layer, and the two groups of fastening clamps are respectively located at the upper and lower ends of the additional waterproof layer, so that the additional waterproof layer can be more stably attached to the outer wall of the pipe body, and the waterproof layer extending section pressed on the inner side of the lower end of the additional waterproof layer is further pressed and fixed.
[0009] Further, the vent cap is adapted to be buckled at the top end of the pipe body, which not only can ensure the gas in the pipe body to be discharged, maintain the air pressure balance, and avoid the accumulation of odorous or harmful gas in the pipe, but also can effectively prevent mice and insects from entering the pipe body.
[0010] The utility model has the advantages of simple structure, simple installation and wide application range, and good anti-seepage effect. By arranging the pipe root base, the rainproof ring, the base waterproof layer and the additional waterproof layer at the joint of the pipe body and the roof, a multi-layer waterproof structure is formed, which effectively prevents rainwater from seeping from the joint of the pipe body and the roof, greatly improves the anti-seepage effect, and reduces the risk of damage to the base waterproof layer due to long-term soaking. In addition, the pipe root base composed of the C20 concrete conical table and the additional waterproof layer wrapped on the outer wall of the pipe body can further enhance the stability and durability, facilitate daily inspection and maintenance, reduce the impact of the daily environment, reduce the problem of cracks caused by construction quality or sun and rain, prolong the service life, realize standardized construction, improve the construction quality, have good economic efficiency, and have good economic efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is a structural schematic diagram of the utility model.
[0012] Figure 2 is Figure 1 is an enlarged view of part A in Fig. DETAILED DESCRIPTION
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0015] like Figure 1 , 2 As shown, the waterproof structure for pipes penetrating the roof according to this utility model includes a pipe body 1 that is vertically installed on the roof 100. The pipe body 1 can be made of steel pipe, galvanized steel pipe, cast iron pipe or UPVC pipe. A vent cap 2 is fitted and fastened to its top. The vent cap 2 can not only ensure that the gas inside the pipe body 1 can be discharged, thereby maintaining the balance of its internal and external air pressure, but also prevent odors or harmful gases from accumulating inside the pipe body 1, and effectively prevent rodents and insects from crawling into the pipe body 1.
[0016] A pipe root base 3 is provided at the upper end of the perforation through which the pipe body 1 passes through the roof 100. The pipe body 1 is fitted with a rainproof ring 4 above the pipe root base 3. The top surfaces of the pipe root base 3 and the rainproof ring 4 are both slope structures that slope downward from the inside out.
[0017] A base waterproof layer 5 is attached to the pipe root base 3. The upper edge of the base waterproof layer 5 extends upward to form an upper extension 6 of the waterproof layer covering the outer wall of the pipe body 1, and its lower edge extends horizontally outward to form an outer extension 7 of the waterproof layer laid flat on the roof 100. In addition, an additional waterproof layer 8 is also covered on the outer wall of the pipe body 1 between the pipe root base 3 and the rainproof ring 4. The lower end of the additional waterproof layer 8 should be attached to and pressed against the outside of the upper extension 6 of the waterproof layer.
[0018] To ensure that the additional waterproof layer 8 can be more firmly attached to the outer wall of the pipeline body 1, at least two sets of fastening clamps 9 can be clamped on the additional waterproof layer 8. When only two sets of fastening clamps 9 are clamped on the entire additional waterproof layer 8, the two sets of fastening clamps 9 should be located at the upper end and the lower end of the additional waterproof layer 8, respectively. The upper fastening clamp 9 can firmly clamp the upper edge of the additional waterproof layer 8 to prevent the upper edge of the additional waterproof layer 8 from being warped. The lower fastening clamp 9 can firmly clamp the lower edge of the additional waterproof layer 8 and further press the waterproof layer extension 6 inside the additional waterproof layer 8, thereby preventing the lower edge of the additional waterproof layer 8 and the upper edge of the waterproof layer extension 6 from being warped.
[0019] Specifically, the pipe root base 3 is a C20 concrete conical table cast on the top surface of the roof 100 and wrapped around the outer wall of the pipeline body 1. The height of the C20 concrete conical table is 300 mm, and the distance between the outer edge of the bottom and the outer wall of the pipeline body 1 is 500 mm. The rainproof ring 4 is an umbrella-shaped ring wrapped around the outer wall of the pipeline body 1. The height of the umbrella-shaped ring is 100 mm, and the ring width is 150 mm. At this time, the vertical height between the top end of the pipe root base 3 and the bottom edge of the umbrella-shaped ring 4 is 700 mm, and the height of the waterproof layer extension 6 of the base waterproof layer 5 extending upward to cover the pipeline body 1 is 100 mm.
[0020] In actual construction, first, a hole matching the pipeline body 1 is opened at the designed position of the roof 100, and the pipeline body 1 with the breather cap 2 is inserted into the hole. Then, the pipe root base 3 is constructed on the roof 100 at the upper end of the hole, and the rainproof ring 4 is fixed on the pipeline body 1 700 mm above the pipe root base 3. Of course, the pipeline body 1 with the rainproof ring 4 can be directly processed and produced. At this time, after the hole is opened on the roof 100, the pipeline body 1 is inserted into the hole from top to bottom. Then, the base waterproof layer 5 is laid on the pipe root base 3. The base waterproof layer 5 not only extends outward at the bottom edge of the pipe root base 3 to form a waterproof layer extension 7 on the entire roof 100, but also extends upward at the top edge of the pipe root base 3 to cover the pipeline body 1 by 100 mm to form a waterproof layer extension 6. Then, the additional waterproof layer 8 is wrapped around the outer wall of the pipeline body 1 between the rainproof ring 4 and the pipe root base 3, ensuring that the lower end of the additional waterproof layer 8 is attached to and pressed on the waterproof layer extension 6. Finally, multiple fastening clamps 9 are arranged on the additional waterproof layer 8 in intervals, ensuring that the uppermost fastening clamp 9 is located at the upper end of the additional waterproof layer 8 and the lowermost fastening clamp 9 is located at the lower end of the additional waterproof layer 8. In this way, the installation and construction of the entire roof-penetrating pipeline anti-leakage structure are completed.
[0021] By setting the pipe root base 3, the rainproof ring 4, the base waterproof layer 5 and the additional waterproof layer 8 at the joint of the pipe body 1 and the roof 100, a multi-layer waterproof structure is formed, which effectively prevents rainwater from leaking from the joint of the pipe body 1 and the roof 100, greatly improving the anti-seepage effect; meanwhile, the top surfaces of the pipe root base 3 and the rainproof ring 4 are both inclined downward from inside to outside, which is designed to guide rainwater to quickly drain away, reduce the residence time of rainwater on the pipe root base 3, and thus reduce the risk of damage to the base waterproof layer 5 due to long-term soaking; in addition, the pipe root base 3 composed of a C20 concrete conical table and the additional waterproof layer 8 wrapped on the outer wall of the pipe body 1 can further enhance the stability and durability, facilitate daily inspection and maintenance, reduce the impact of the daily environment, reduce the problem of cracks caused by construction quality or sun and rain, prolong the service life, realize standardized construction, improve the construction quality, and have good economic efficiency.
Claims
1. A roof-penetrating pipe leak-proof structure comprising a pipe body vertically penetrating a roof, characterized by: A pipe root base is arranged on the pipe body outer wall of the fitting ring at the perforated upper end of the pipe body penetrating the roof, a rainproof ring is fitted on the pipe body above the pipe root base, the top surface of the pipe root base and the rainproof ring are both inclined downward from inside to outside, a base waterproof layer is attached on the pipe root base, the upper edge of the base waterproof layer extends upward to form a waterproof layer upper extension wrapped on the pipe body, the lower edge of the base waterproof layer extends outward to form a waterproof layer outer extension laid on the roof, an additional waterproof layer is wrapped on the pipe body outer wall between the pipe root base and the rainproof ring, the lower end of the additional waterproof layer is fitted and pressed on the outer side of the waterproof layer upper extension.
2. The leak barrier for roof penetrations according to claim 1, wherein: The pipe root base is a C20 concrete conical platform poured on the roof top surface, the height of the C20 concrete conical platform is 300mm, the distance between the bottom outer edge and the pipe body outer wall is 500mm, the rainproof ring is an umbrella-shaped ring fixed on the pipe body outer wall, the height of the umbrella-shaped ring is 100mm, and the ring width is 150mm.
3. The leak barrier for roof penetrations according to claim 2, wherein: The vertical height between the top end of the pipe root base and the bottom edge of the umbrella-shaped ring is 700mm, and the height of the waterproof layer upper extension of the base waterproof layer extending upward to wrap the pipe body is 100mm.
4. The leak barrier for roof penetrations according to claim 1, wherein: At least two groups of fastening clamps are clamped on the additional waterproof layer.
5. The leak barrier for roof penetrations according to claim 1, wherein: A breathable cap is adapted and buckled on the top end of the pipe body.