Penetrating pipe waterproofing construction

CN224755291UActive Publication Date: 2026-09-15BEIJING LANGKUN WATERPROOF MATERIAL CO LTD
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Patent Information

Application Number
CN202522145592.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-09-15
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

[0003]目前对屋面防水主要采用防水卷材或者防水涂料对屋面进行防水处理,但管道伸出屋面板位置处易因管道施工或维护等因素发生振动,使得管道伸出屋面板位置处易与防水层产生间隙,容易造成渗漏

Benefits of technology

[0015] In summary, the technical advantages of this application are as follows: the waterproof structure for pipes penetrating the roof incorporates an elastic sealing structure between the pipes and the waterproof structure, which avoids problems such as cracking and leakage of the waterproof structure caused by pipe vibration, effectively extending the service life of the roof waterproofing project. Moreover, the structure is simple, easy to construct, convenient for inspection and maintenance, and highly practical.

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Abstract

This application discloses a waterproof structure for pipes penetrating roofs, including a roof panel with a construction opening. A galvanized steel sleeve is installed through the construction opening, and a pipe is inserted through the galvanized steel sleeve. A waterproof structure layer is provided on the roof panel to seal the gap between the galvanized steel sleeve and the construction opening. The gap between the galvanized steel sleeve and the pipe is filled with a tightly elastic sealing structure. The elastic sealing structure includes an elastic sealing ring and an adjusting frame disposed within the elastic sealing ring. The adjusting frame has a lever-like structure. This pipe-penetrating roof waterproof structure incorporates an elastic sealing structure between the pipe and the waterproof structure, preventing cracking and leakage caused by pipe vibration, effectively extending the service life of the roof waterproofing project. Furthermore, it has a simple structure, is easy to construct, convenient for inspection and maintenance, and is highly practical.
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Description

Technical Field

[0001] This application relates to the field of building waterproofing technology, and in particular to a waterproofing structure for pipes penetrating roofs. Background Technology

[0002] With social development, people are gradually increasing their demands for building performance and aesthetics. Roofing is also the key to meeting the functional requirements of buildings. In particular, roof waterproofing is the most important aspect of roofing projects. The weakest points in roof waterproofing are the rainwater outlets and the roots of pipes extending from the roof panels.

[0003] Currently, waterproof membranes or coatings are mainly used to waterproof roofs. However, the pipes extending from the roof panel are prone to vibration due to factors such as pipe construction or maintenance, which can easily create gaps between the pipes and the waterproof layer, leading to leaks. Summary of the Invention

[0004] To improve the waterproofing performance at the connection between the pipe and the roof panel, this application provides a waterproofing structure for pipes penetrating the roof.

[0005] This application provides a waterproof structure for pipes penetrating roofs, employing the following technical solution: A waterproof structure for pipe penetration through a roof includes a roof panel with an access opening. A galvanized steel sleeve is installed through the access opening, and a pipe is inserted through the galvanized steel sleeve. A waterproof roof structure layer is provided on the roof panel to seal the gap between the galvanized steel sleeve and the access opening. The gap between the galvanized steel sleeve and the pipe is filled with a tight elastic sealing structure. The elastic sealing structure includes an elastic sealing ring and an adjusting bracket disposed within the elastic sealing ring. The adjusting bracket has a lever-type structure.

[0006] Optionally, the adjusting frame includes a connecting ring and a set of connecting plates rotatably mounted on the connecting ring.

[0007] Optionally, the connecting piece has a Z-shaped bent plate structure, with the bending point of the connecting piece near its own end, and a bushing is provided in the middle of the connecting piece.

[0008] Optionally, the cross-section of the elastic sealing ring is rectangular or fusiform.

[0009] Optionally, the elastic sealing ring has a connecting groove, and the adjusting frame is set in the connecting groove. The elastic sealing ring and the adjusting frame are connected as one unit by heat fusion.

[0010] Optionally, a cover plate is fixed to the pipe, which covers the resilient sealing structure.

[0011] Optionally, the roof waterproofing structure includes a leveling layer, a waterproof and thermal insulation layer, and a rolled waterproofing layer, which are sequentially installed on the roof panel. The leveling layer is poured around the galvanized steel sleeve to form a gentle slope layer with a slope of 3%.

[0012] Optionally, a crack-resistant layer is provided on the surface of the roll waterproofing layer, and the crack-resistant layer material is selected as GR polymer crack-resistant cement mortar.

[0013] Optionally, the crack-resistant layer may contain a crack-resistant fiber mesh.

[0014] Optionally, a protective surface layer may be provided on the surface of the crack-resistant layer.

[0015] In summary, the technical advantages of this application are as follows: the waterproof structure for pipes penetrating the roof incorporates an elastic sealing structure between the pipes and the waterproof structure, which avoids problems such as cracking and leakage of the waterproof structure caused by pipe vibration, effectively extending the service life of the roof waterproofing project. Moreover, the structure is simple, easy to construct, convenient for inspection and maintenance, and highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the waterproof structure for the pipe penetrating the roof in the embodiment; Figure 2 This is a schematic diagram of the elastic sealing structure in the embodiment.

[0017] Explanation of reference numerals in the attached drawings: 1. Roof panel; 2. Galvanized steel sleeve; 21. Annular baffle; 3. Pipe; 4. Cover plate; 5. Elastic sealing structure; 51. Sealing ring; 52. Adjusting frame; 53. Connecting ring; 54. Connecting piece; 6. Leveling layer; 7. Slope layer; 8. Waterproof and heat-insulating layer; 9. Roll waterproof layer. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figure 1 This application discloses a waterproof structure for a pipe penetrating a roof, including a roof panel 1, a construction opening on the roof panel 1, a galvanized steel sleeve 2 passing through the construction opening, a pipe 3 passing through the galvanized steel sleeve 2, an installation gap between the pipe 3 and the galvanized steel sleeve 2, and the pipe 3 can be fixed to other existing foundations by a mounting bracket.

[0020] A cover plate 4 is installed on the pipe 3, covering the galvanized steel sleeve 2 and concealing the installation gap between the galvanized steel sleeve 2 and the pipe 3. An elastic sealing structure 5 is filled at the opening of the galvanized steel sleeve 2, sealing the installation gap between the galvanized steel sleeve 2 and the pipe 3. An annular baffle 21 extends radially from the outer circumference of the galvanized steel sleeve 2, abutting against the outer surface of the roof panel 1. The outer surface of the roof panel 1 has a roof waterproofing layer, which seals the gap between the galvanized steel sleeve 2 and the construction opening. The cover plate 4, the elastic sealing structure 5, and the roof waterproofing layer constitute a three-layer waterproofing structure.

[0021] The cover plate 4 consists of two arc-shaped plates that interlock to form a frustum structure that encircles the pipe 3. A rubber sealing gasket is provided on the contact surface between the cover plate 4 and the pipe 3. The cover plate 4 can be bolted to the top of the galvanized steel sleeve 2 to initially intercept water or debris.

[0022] Reference Figure 2 The elastic sealing structure 5 includes a sealing ring 51 and an adjusting bracket 52. The sealing ring 51 is a rubber ring with a rectangular or spindle-shaped cross-section that is wider in the middle and narrower at both ends. The size of the sealing ring 51 is adapted to the installation gap between the galvanized steel sleeve 2 and the pipe 3, so that the sealing ring 51 can tightly fill the installation gap between the galvanized steel sleeve 2 and the pipe 3.

[0023] The adjusting frame 52 includes a connecting ring 53 and a group of connecting plates arranged circumferentially on the connecting ring 53. Each connecting plate 54 of the connecting plate group has a Z-shaped bent plate structure, with the bending point of the connecting plate 54 located near its own end. A bushing is fixedly connected to the middle of the connecting plate 54, and the connecting plate 54 is rotatably mounted on the connecting ring 53 through the bushing.

[0024] The sealing ring 51 has several sets of connecting grooves inside, and the number of connecting grooves is adapted to the number of connecting pieces 54. When the sealing ring 51 is used in conjunction with the adjusting frame 52, the sealing ring 51 can be divided into two parts in advance, the adjusting frame 52 is arranged between the sealing rings 51, the two ends of the connecting pieces 54 are inserted into the corresponding sealing rings 51 respectively, and then the sealing ring 51 and the adjusting frame 52 are connected into one piece by heat fusion.

[0025] When using the elastic sealing structure 5 for sealing, the sealing ring 51 is first installed in the installation gap between the galvanized steel sleeve 2 and the pipe 3, with the lower part of the sealing ring 51 inside the installation gap and the upper part outside the installation gap. Then, a clamp is used to tighten the upper part of the sealing ring 51 onto the pipe 3. At this time, the upper part of the connecting piece 54 inside the sealing ring 51 is pressed towards the outer wall of the pipe 3 under the force of the clamp, while the lower part of the connecting piece 54 pushes the sealing ring 51 towards the inner wall of the galvanized steel sleeve 2, making the sealing ring 51 more tightly pressed into the installation gap between the galvanized steel sleeve 2 and the pipe 3. On the one hand, this achieves the sealing treatment between the galvanized steel sleeve 2 and the pipe 3, and on the other hand, the elastic sealing structure 5 can effectively absorb and buffer the vibration caused by the construction or maintenance of the pipe 3, ensuring the sealing performance of the waterproof structure.

[0026] The roof waterproofing structure includes, from bottom to top, a leveling layer 6, a waterproof and thermal insulation layer 8, and a roll waterproofing layer 9, all installed on the roof panel 1.

[0027] The leveling layer 6 is used to cast the galvanized steel sleeve 2 and the annular baffle 21 onto the roof panel 1. After the leveling layer 6 solidifies, the galvanized steel sleeve 2 is fixed on the roof panel 1. A gentle slope layer 7 is also cast around the galvanized steel sleeve 2. The slope of the gentle slope layer 7 is arranged downward with the galvanized steel sleeve 2 as the center, and the slope is 3%.

[0028] The waterproof and thermal insulation layer 8 is made of WT rigid polyurethane foam and is evenly laid on the galvanized steel sleeve 2, the gentle slope layer 7 and the leveling layer 6. The waterproof and thermal insulation layer 8 plays a role in waterproofing and thermal insulation, thereby enhancing the thermal insulation effect of the roof panel 1.

[0029] The waterproof membrane 9 is a self-adhesive waterproof membrane, which is evenly laid on the surface of the waterproof and thermal insulation layer 8. The length of the waterproof membrane 9 should at least cover the slope layer 7, and the waterproof membrane further enhances the waterproof performance of the roof panel 1.

[0030] A crack-resistant layer can be further provided on the surface of the roll waterproofing layer 9. The material of the crack-resistant layer is selected as GR polymer crack-resistant cement mortar. Crack-resistant cement mortar is a high-quality environmentally friendly material with high tensile strength, easy construction and freeze resistance. The crack-resistant cement mortar is used to fix the roll waterproofing layer 9 to reduce the impact of cracking and hollowing caused by material temperature difference deformation, so as to make the waterproofing effect of the roll waterproofing layer 9 better.

[0031] Crack-resistant fiber mesh can be added to the crack-resistant layer. The crack-resistant fiber mesh has good flexibility and high tensile strength in both warp and weft directions. It is distributed on the outside of the crack-resistant cement mortar and mainly plays a role in binding and fixing, thereby effectively avoiding cracking caused by overall surface tension shrinkage and external forces, and can further improve the waterproof performance of the roof panel 1.

[0032] A protective layer is poured on the surface of the crack-resistant layer. The coating of the protective layer is a water-based resin coating, which improves the weather resistance and stain resistance of the roof waterproofing structure.

[0033] The waterproof structure for pipes penetrating the roof provided by this solution has good waterproof performance, avoiding problems such as cracking and leakage caused by pipe vibration, effectively extending the service life of the roof waterproofing project. It also has a simple structure, is easy to construct, and is convenient for inspection and maintenance, making it highly practical.

[0034] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A waterproof structure for pipes penetrating roofs, characterized in that: The roof panel (1) has a construction opening, a galvanized steel sleeve (2) is installed through the construction opening, a pipe (3) is installed through the galvanized steel sleeve (2), a roof waterproofing structure layer is provided on the roof panel (1) to seal the gap between the galvanized steel sleeve (2) and the construction opening, and a tight elastic sealing structure (5) is filled between the galvanized steel sleeve (2) and the pipe (3). The elastic sealing structure (5) includes an elastic sealing ring (51) and an adjustment frame (52) set in the elastic sealing ring (51). The adjustment frame (52) has a lever structure.

2. The waterproof structure for pipes penetrating roofs according to claim 1, characterized in that: The adjusting frame (52) includes a connecting ring (53) and a set of connecting plates rotatably mounted on the connecting ring (53).

3. The waterproof structure for pipes penetrating the roof according to claim 2, characterized in that: Each connecting piece (54) has a Z-shaped bent plate structure. The bending point of the connecting piece (54) is close to its own end position, and a bushing is provided in the middle of the connecting piece (54).

4. The waterproof structure for pipes penetrating roofs according to claim 1, characterized in that: The cross-section of the elastic sealing ring (51) is rectangular or spindle-shaped.

5. The waterproof structure for pipes penetrating the roof according to claim 4, characterized in that: The elastic sealing ring (51) is provided with a connecting groove, and the adjusting frame (52) is set in the connecting groove. The elastic sealing ring (51) and the adjusting frame (52) are connected as one unit by heat fusion.

6. The waterproof structure for pipes penetrating roofs according to claim 1, characterized in that: A cover plate (4) is fixed on the pipe (3), and the cover plate (4) covers the elastic sealing structure (5).

7. The waterproof structure for pipes penetrating roofs according to claim 1, characterized in that: The roof waterproofing structure includes a leveling layer (6), a waterproof and heat-insulating layer (8), and a roll waterproofing layer (9) sequentially installed on the roof panel (1). The leveling layer (6) is poured around the galvanized steel sleeve (2) to form a gentle slope layer (7), and the slope of the gentle slope layer (7) is 3%.

8. The waterproof structure for pipes penetrating the roof according to claim 7, characterized in that: The surface of the roll waterproof layer (9) is provided with a crack-resistant layer, and the crack-resistant layer material is selected as GR polymer crack-resistant cement mortar.

9. The waterproof structure for pipes penetrating roofs according to claim 8, characterized in that: The crack-resistant layer contains a crack-resistant fiber mesh.

10. The waterproof structure for pipes penetrating roofs according to claim 9, characterized in that: A protective surface layer is provided on the surface of the crack-resistant layer.