Roof pipe protection treatment structure and construction method
The combination of a prefabricated leveling base and an integrated clamp protective cover solves the problem of waterproofing and leakage at the base of roof pipes, achieving high-efficiency waterproofing performance and convenient maintenance, adapting to thermal expansion and contraction deformation, and extending the waterproofing life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-04
- Publication Date
- 2026-04-14
AI Technical Summary
In traditional methods of waterproofing the base of pipes on roofs, metal clamps are prone to corrosion and concrete retaining walls can crack, leading to leaks that are difficult to resolve and repair.
The system employs a combination structure consisting of a prefabricated leveling base, an integrated clamp protective cover, a sealing filling layer, and connecting components, forming a triple defense line to adapt to thermal expansion and contraction deformation. It also features a waterproof system composed of an elastic sealing liner, an annular interlayer guide channel, and drainage holes.
It effectively blocks leakage channels, improves construction quality and efficiency, facilitates maintenance, provides a constant temperature and sealed environment, enhances waterproof durability, and resists ultraviolet rays and temperature changes.
Smart Images

Figure CN121853753A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building roof waterproofing technology, and in particular to a roof pipe protection treatment structure and construction method. Background Technology
[0002] In recent years, my country's housing construction industry has developed rapidly. Aging, cracking, leakage, and seepage of roof waterproofing have affected people's daily lives. The roof protective layer has aged, cracked, and peeled due to long-term exposure to the natural environment. As a result, the waterproofing material is directly subjected to ultraviolet radiation and high and low temperature impacts, which can cause hardening and aging, resulting in the loss of its original elasticity and adhesion properties, and thus the loss of its original waterproofing function. Waterproofing leakage at the base of pipes extending from the roof (such as exhaust pipes and drainage pipes) is particularly serious and is a high-incidence area for leakage. Moreover, leakage is not easy to detect and is difficult to repair. Traditional treatment methods often involve the process of turning up the waterproof membrane, fixing it with metal clamps, and adding external concrete piers.
[0003] However, traditional processes have the following drawbacks: First, metal clamps are exposed to the elements for a long time, making them prone to rust and loosening, which can cause the waterproof membrane to fall off. Second, due to the different materials between the concrete retaining wall and the pipe, new micro-cracks are easily generated under long-term thermal expansion and contraction, forming water seepage channels. Therefore, this application proposes a roof pipe protection treatment structure and construction method. Summary of the Invention
[0004] The purpose of this invention is to address the problems of easy corrosion of metal clamps and cracking of concrete retaining walls in the prior art, and to propose a roof pipe protection structure and construction method.
[0005] In a first aspect, the present invention provides a roof pipe protection structure, fitted onto a pipe extending from the roof, comprising: A prefabricated leveling base is fitted and fixed onto the roof base at the root of the pipe, and its upper surface is a smoothly transitioned chamfered surface; An integrated clamp protective cover is detachably fitted and fastened to the pipe, and an annular cavity is formed between the inner wall of the integrated clamp protective cover and the outer wall of the pipe. A sealing filler layer is used to fill the annular cavity; A connecting component for securely connecting an integrated clamp protective cover to a pipe.
[0006] Optionally, the integrated clamp protective cover includes two sets of rigid protective covers and elastic sealing liners. The elastic sealing liners are respectively fixed to the inner walls of the two sets of rigid protective covers for elastic compression and sealing with the outer wall of the pipe.
[0007] Optionally, the connecting assembly includes a tenon disposed on one set of rigid protective covers and a groove disposed on another set of rigid protective covers that is adapted to the tenon.
[0008] Optionally, an annular interlayer is formed between the rigid protective outer cover and the elastic sealing inner liner. The annular interlayer has an annular guide groove and a drain hole communicating with the outside. The drain hole is designed to be inclined and communicates with the interior of the annular guide groove.
[0009] Optionally, the upper side wall of the rigid protective cover is provided with an injection hole for injecting a sealing filler layer.
[0010] Optionally, the bottom end of the rigid protective cover extends outward to form an anchoring part, which is a wing plate extending from the bottom of the rigid protective cover, and the wing plate is provided with a plurality of anchoring holes.
[0011] Optionally, the sidewall of the rigid protective cover is provided with a double protection mechanism, which includes a connecting lug extending outward from the sidewall of the rigid protective cover, and bolts and nuts passing through the corresponding rigid protective cover.
[0012] Optionally, the prefabricated leveling base has an additional waterproof layer and an integral waterproof layer that overlaps with the additional waterproof layer and extends upwards along the pipe. The integrated clamp protective cover is located outside the extended additional waterproof layer and the integral waterproof layer.
[0013] Optionally, the additional waterproof layer and the overall waterproof layer are PVC polymer waterproof membranes, the sealing and filling layer is polyurethane foam, and the rigid protective cover is integrally injection molded from PVC engineering plastic.
[0014] Secondly, the present invention provides a construction method for roof pipe protection treatment, applied to the roof pipe protection treatment structure described in the first aspect, the method comprising the following steps: S1. Base treatment and installation of prefabricated leveling base: Clean the base of the pipe roots that protrude from the roof and install the prefabricated leveling base to form a smooth chamfered surface. S2. Lay an additional waterproof layer on the chamfered surface of the precast leveling base and the roof, then construct the overall waterproof layer and seal it with the additional waterproof layer, while turning the overall waterproof layer up along the outer wall of the pipe. S3. Install and fix the integrated clamp protective cover, wrap the pipe with two sets of rigid protective covers with elastic sealing liners, and interlock the positioning of the tenon and groove. Then, use bolts and nuts to tighten the connecting ear plate, so that the elastic sealing liner is pressed and sealed with the pipe wall. At the same time, the wing plate is initially positioned through the anchor hole. S4. Fill the sealing material by injecting polyurethane foam into the annular cavity inside the rigid protective cover through the injection hole on the outer cover to form a sealing filling layer. S5. Pour concrete protective layer: Pour protective layer concrete in the roof and wing area. The concrete seeps into the anchor holes to form pins, so that the protective cover is firmly bonded to the roof and the waterproof system is sealed inside.
[0015] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This invention, through the collaborative design of a prefabricated leveling base and an integrated clamp protective cover, forms a triple defense line consisting of an elastic sealing liner for tight sealing, flexible foam filling for buffering, and a sandwich drainage channel for drainage. This effectively adapts to the thermal expansion and contraction deformation of pipes and roofs, and can also orderly guide and discharge any trace amounts of moisture that may intrude. Furthermore, the use of prefabricated components significantly improves construction quality and efficiency. The detachable integrated clamp protective cover facilitates quick installation and subsequent inspection and maintenance. At the same time, the rigid protective cover, as the outermost barrier, creates a stable, temperature-controlled environment for the inner flexible waterproof layer, protecting it from the direct effects of ultraviolet radiation, drastic temperature changes, and mechanical damage. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a roof pipe protection treatment structure. Figure 2 This is a schematic cross-sectional view of a roof pipe protection treatment structure. Figure 3 A structural schematic diagram of the pipeline and prefabricated leveling base; Figure 4 A schematic diagram of an explosion involving a rigid protective casing; Figure 5 This is a cross-sectional schematic diagram of a rigid protective cover; Figure 6 This is a partial cross-sectional schematic diagram; Figure 7 A schematic diagram of the wing plate and anchor holes; Figure 8 for Figure 7 A magnified structural diagram at point A; Figure 9 This is a schematic diagram of the structure connecting the lugs and bolts.
[0017] Reference numerals: 1. Pipe; 2. Precast leveling base; 3. Rigid protective cover; 4. Elastic sealing liner; 5. Tenon; 6. Groove; 7. Annular guide channel; 8. Drain hole; 9. Injection hole; 10. Wing plate; 11. Anchor hole; 12. Connecting ear plate; 13. Bolt; 14. Nut; 15. Additional waterproof layer; 16. Overall waterproof layer. Detailed Implementation
[0018] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.
[0019] like Figure 1 - Figure 5 As shown, the present invention proposes a roof pipe protection structure, which is fitted onto the pipe 1 that protrudes from the roof. It includes a prefabricated leveling base 2, an integrated clamp protective cover, a sealing filling layer, and connecting components. The prefabricated leveling base 2 is fitted and fixed onto the roof base layer at the root of the pipe 1. Its upper surface is a smoothly transitioning chamfered surface. This prefabricated leveling base 2 replaces on-site wet troweling, providing a solid, regular transition slope that meets the requirements for continuous waterproofing layer installation, fundamentally eliminating right-angle stress concentration points. The integrated clamp protective cover is detachably fitted and fastened to the pipe 1. The inner wall of the integrated clamp protective cover is flush with the pipe... An annular cavity is formed between the outer walls of pipe 1 and the integrated clamp protective cover, which serves as the core protective component. Its detachable design facilitates installation and subsequent maintenance. The annular cavity provides a closed space for accommodating the buffer sealing material. A sealing filling layer is filled into the annular cavity. This sealing filling layer is used to achieve dynamic sealing between pipe 1 and the inner wall of the integrated clamp protective cover, absorb thermal expansion and contraction deformation, and block capillary seepage channels. The connecting component is used to securely connect the integrated clamp protective cover to pipe 1. This connecting component provides a controllable locking force to ensure a stable connection and a lasting seal between the integrated clamp protective cover and pipe 1.
[0020] As one implementation method, such as Figure 4 and Figure 5 As shown, the integrated clamp protective cover includes two sets of rigid protective outer covers 3 and elastic sealing inner liner 4. The integrated clamp protective cover is described in detail below: The elastic sealing liner 4 is fixed to the inner wall of the two sets of rigid protective covers 3 respectively. This fixing method ensures that the elastic sealing liner 4 and the rigid protective cover 3 are combined into a whole component. They can be put into place synchronously during installation. The rigidity of the rigid protective cover 3 is used to maintain the shape and positioning of the elastic sealing liner 4, which is used to elastically press and seal with the outer wall of the pipe 1. The elastic pressing can actively compensate for the small tolerance of the outer diameter of the pipe 1 and the unevenness of its surface, forming the first uniform and continuous annular sealing band, which effectively prevents liquid water from seeping down the pipe wall.
[0021] Furthermore, such as Figure 5As shown, the connecting assembly includes tenons 5 disposed on a set of rigid protective covers 3. The connecting assembly is described in detail below: The tenon 5 structure plays an initial positioning and guiding role when the two sets of rigid protective covers 3 are closed, ensuring that the two can be quickly and accurately aligned, providing a basis for subsequent fastening, and also includes a groove 6 on the other set of rigid protective covers 3 that is compatible with the tenon 5; the groove 6 structure cooperates with the tenon 5 to achieve mechanical interlocking in the initial connection stage, which can effectively resist the shearing force generated during construction or use and prevent the two parts from being misaligned.
[0022] Furthermore, such as Figure 6 , Figure 7 and Figure 8 As shown, an annular interlayer is formed between the rigid protective outer cover 3 and the elastic sealing inner liner 4. This interlayer serves as a crucial secondary waterproof cavity and drainage channel, providing storage and drainage space for any trace amounts of water that may seep in should the first elastic seal fail. This prevents the water from directly contacting and corroding the inner wall of the rigid protective outer cover 3. The annular interlayer contains an annular guide groove 7 and a drain hole 8 that communicates with the outside. The annular guide groove 7 actively collects and gathers condensate or leaking water that may intrude from the upper part of the interlayer, channeling the water through its annular structure. The water is guided to the preset drain hole 8 to prevent disorderly flow or local accumulation of water in the interlayer. The drain hole 8 is designed with an inclination angle, which utilizes the principle of gravity flow to ensure a smooth drainage path. It can effectively prevent water residue that may be caused by horizontal setting and can also prevent external debris or backflow from entering to a certain extent. The drain hole 8 is connected to the interior of the annular guide channel 7. This connection design ensures that the water flow collected from the annular guide channel 7 can flow into the drain hole 8 without obstruction, forming a continuous and efficient passive drainage channel from "collection" to "discharge".
[0023] As one implementation method, such as Figure 6 As shown, the upper side wall of the rigid protective cover 3 is provided with an injection hole 9 for injecting the sealing filling layer; the injection hole 9 provides a standardized and directional construction injection point to ensure that the sealing material can be smoothly injected into the annular cavity below from a high position, thereby effectively avoiding incomplete filling or voids, and ensuring the continuity and integrity of the sealing layer.
[0024] Furthermore, such as Figure 2 , Figure 7 and Figure 9As shown, the bottom end of the rigid protective cover 3 extends outward to form an anchoring part. This anchoring part is used to reliably connect the lower part of the rigid protective cover 3 to the roof base layer, increasing its pull-out and overturning resistance, and ensuring the overall stability of the structure under external forces such as wind loads. The anchoring part is a wing plate 10 extending from the bottom of the rigid protective cover 3. The wing plate 10 provides a wide and flat installation base surface, which can effectively distribute and transfer the upper load, and at the same time facilitate positioning and fixing operations during construction. The wing plate 10 is provided with several anchoring holes 11. When the concrete is poured, the concrete slurry passes through the anchoring holes 11 to form concrete pins, so that the rigid protective cover 3 is firmly bonded to the roof base layer.
[0025] Furthermore, such as Figure 9 As shown, the rigid protective cover 3 has a double protection mechanism on its side wall. This double protection mechanism is designed to enhance the connection strength and sealing reliability of the two rigid protective covers 3 at the closure point. As a key mechanical node to resist external stress and internal expansion force, the double protection mechanism includes a connecting lug 12 extending outward from the side wall of the rigid protective cover 3. The outwardly extending connecting lug 12 provides a stable mounting base for the fasteners, as well as bolts 13 and nuts 14 passing through the corresponding rigid protective covers 3. The bolts 13 and nuts 14 form a detachable fastening pair. By tightening, a strong and uniform radial locking force is generated to ensure that the two rigid protective covers 3 are tightly closed and to continuously press the elastic sealing liner 4 against the surface of the pipe 1, forming a durable and stable mechanical seal.
[0026] As one implementation method, such as Figure 2 As shown, the prefabricated leveling base 2 has an additional waterproof layer 15 laid on its chamfered surface. This additional waterproof layer 15 serves as a node reinforcement layer, specifically covering the chamfered area where stress changes are most complex, to strengthen the waterproofing capability of this weak point and form a reliable first line of defense against water damage. An integral waterproof layer 16 overlaps with the additional waterproof layer 15 and extends upwards along the pipe 1. The overlap between the integral waterproof layer 16 and the additional waterproof layer 15 ensures the continuity between the main roof waterproofing and the node waterproofing. Its upward extension establishes a waterproof wall along the pipe wall, effectively preventing rainwater from entering horizontally. The integrated clamp protective cover is located outside the upward-extended additional waterproof layer 15 and the integral waterproof layer 16. This arrangement makes the rigid protective cover 3 the outermost physical barrier, providing rigid protection against ultraviolet radiation, mechanical damage, and sudden temperature changes, greatly extending the durability of the waterproofing.
[0027] Furthermore, such as Figure 2As shown, the additional waterproof layer 15 and the overall waterproof layer 16 are PVC polymer waterproof membranes. This material has excellent weather resistance, aging resistance, flexibility, and root penetration resistance. Its reliable welding performance ensures that the membrane overlaps form a strong whole, thus providing a durable and continuous flexible waterproof barrier. The sealing and filling layer is a polyurethane foam material. Before curing, this material has good fluidity and expansion properties, which can fully fill all irregular gaps. After curing, it forms a closed-cell foam, which has excellent sealing and waterproofing, cushioning and shock absorption, heat insulation, and the ability to adapt to certain deformations. The rigid protective cover 3 is integrally injection molded from PVC engineering plastic. This manufacturing process ensures that the protective cover has accurate dimensions, high structural strength, and no seams. In addition, the material itself has excellent corrosion resistance, aging resistance, insulation properties, and mechanical properties, meeting the stringent requirements for long-term outdoor use.
[0028] A construction method for protective treatment of roof pipes, the method comprising the following steps: S1. Base treatment and installation of prefabricated leveling base 2: Clean the base of the pipe 1 that penetrates the roof and install the prefabricated leveling base 2 to form a smooth chamfered surface. S2. Lay an additional waterproof layer 15 on the chamfered surface of the precast leveling base 2 and the roof, then construct the overall waterproof layer 16 and overlap and seal it with the additional waterproof layer 15. At the same time, turn the overall waterproof layer 16 up along the outer wall of the pipe 1. S3. Install and fix the integrated clamp protective cover, wrap the pipe 1 with two sets of rigid protective covers 3 with elastic sealing liners 4, and interlock them by the tenon 5 and the groove 6. Then, use bolts 13 and nuts 14 to fasten the ear plate 12 to make the elastic sealing liners 4 press and seal with the pipe wall. At the same time, the wing plate 10 is initially positioned through the anchor hole 11. S4. Fill the sealing material by filling the annular cavity inside the rigid protective cover 3 with polyurethane foam through the filling hole 9 on the rigid protective cover 3 to form a sealing filling layer. S5. Pour concrete protective layer. Pour protective layer concrete in the area of roof and wing 10. The concrete seeps into the anchoring holes 11 to form pins, so that the protective cover is firmly bonded to the roof and the waterproof system is sealed inside.
[0029] In this embodiment, the base layer of the pipe 1 penetrating the roof is first cleaned, and then a prefabricated leveling base 2 is installed to form a smooth bevel surface, replacing the traditional on-site troweling. Next, an additional waterproof layer 15 is laid on the bevel surface of the prefabricated leveling base 2 and the roof, and overlapped and sealed with the overall waterproof layer 16. The overall waterproof layer 16 is then turned up along the pipe to form a waterproof wall. Then, the two sets of rigid protective covers 3 of the integrated clamp protective cover are wrapped around the pipe. The initial positioning and interlocking are achieved through the tenon 5 and the groove 6. Then, the connecting ear plate 12 is tightened with bolts 13 and nuts 14, so that the elastic sealing liner 4 fixed to the inner wall of the rigid protective cover 3 is elastically pressed against the outer wall of the pipe 1, forming the first layer. Sealing; the bottom wing plate 10 of the rigid protective cover 3 is anchored to the roof base through the anchoring hole 11 to enhance stability; then, polyurethane foam is filled into the annular cavity between the rigid protective cover 3 and the pipe 1 through the injection hole 9 on the upper side wall of the rigid protective cover 3 as a sealing filler layer to ensure uniform and dense filling. The annular guide groove 7 and inclined drainage hole 8 set in the internal annular interlayer can divert water seepage; finally, the protective layer concrete is poured. The concrete slurry passes through the anchoring hole 11 to form a pin, so that the protective cover is firmly embedded and the waterproof layer is completely sealed in a constant temperature and airtight space composed of the rigid protective cover 3, foam and concrete, thereby greatly extending the waterproof life.
[0030] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A roof pipe protection structure, fitted onto a pipe (1) extending through the roof, characterized in that, include: A prefabricated leveling base (2) is fitted and fixed on the roof base at the root of the pipe (1), and its upper surface is a smooth transition chamfered surface; An integrated clamp protective cover is detachably fitted and fastened to the pipe (1), and an annular cavity is formed between the inner wall of the integrated clamp protective cover and the outer wall of the pipe (1). A sealing filler layer is used to fill the annular cavity; A connecting component for fastening an integrated clamp protective cover to a pipe (1).
2. The roof pipe protection structure according to claim 1, characterized in that, The integrated clamp protective cover includes two sets of rigid protective outer covers (3) and elastic sealing inner lining (4). The elastic sealing inner lining (4) is fixed on the inner wall of the two sets of rigid protective outer covers (3) respectively, and is used to elastically press and seal with the outer wall of the pipe (1).
3. The roof pipe protection structure according to claim 2, characterized in that, The connecting assembly includes a tenon (5) disposed on a set of rigid protective covers (3) and a groove (6) disposed on another set of rigid protective covers (3) that is adapted to the tenon (5).
4. The roof pipe protection structure according to claim 2, characterized in that, The rigid protective outer cover (3) and the elastic sealing inner liner (4) form an annular interlayer. The annular interlayer is provided with an annular guide groove (7) and a drain hole (8) that communicates with the outside. The drain hole (8) is designed to be inclined and is connected to the interior of the annular guide groove (7).
5. The roof pipe protection structure according to claim 2, characterized in that, The rigid protective cover (3) has an injection hole (9) on the upper side wall for injecting the sealing filling layer.
6. The roof pipe protection structure according to claim 2, characterized in that, The bottom end of the rigid protective cover (3) extends outward to form an anchoring part, which is a wing plate (10) extending from the bottom of the rigid protective cover (3). The wing plate (10) is provided with a plurality of anchoring holes (11).
7. The roof pipe protection structure according to claim 2, characterized in that, The rigid protective cover (3) has a double protection mechanism on its side wall. The double protection mechanism includes a connecting ear plate (12) extending outward from the side wall of the rigid protective cover (3), and a bolt (13) and a nut (14) passing through the corresponding rigid protective cover (3).
8. The roof pipe protection structure according to claim 2, characterized in that, The prefabricated leveling base (2) has an additional waterproof layer (15) laid on its chamfered surface and an integral waterproof layer (16) that overlaps with the additional waterproof layer (15) and flips up along the pipe (1). The integrated clamp protective cover is located outside the flipped-up additional waterproof layer (15) and the integral waterproof layer (16).
9. The roof pipe protection structure according to claim 8, characterized in that, The additional waterproof layer (15) and the overall waterproof layer (16) are PVC polymer waterproof membranes, the sealing and filling layer is polyurethane foam material, and the rigid protective cover (3) is integrally injection molded from PVC engineering plastic.
10. A construction method for roof pipe protection treatment, applied to the roof pipe protection treatment structure according to any one of claims 1-9, characterized in that, The method includes the following steps: S1. Base treatment and installation of prefabricated leveling base (2): Clean the base of the pipe (1) that penetrates the roof and install the prefabricated leveling base (2) to form a smooth chamfered surface. S2. Lay an additional waterproof layer (15) on the chamfered surface of the precast leveling base (2) and the roof, then construct the overall waterproof layer (16) and overlap and seal it with the additional waterproof layer (15), and at the same time turn the overall waterproof layer (16) up along the outer wall of the pipe (1). S3. Install and fix the integrated clamp protective cover, wrap the pipe (1) with two sets of rigid protective covers (3) with elastic sealing lining (4), and position and interlock with the tenon (5) and the groove (6). Then, use bolts (13) and nuts (14) to fasten the ear plate (12) so that the elastic sealing lining (4) is pressed and sealed with the pipe wall. At the same time, the wing plate (10) is initially positioned through the anchor hole (11). S4. Fill the sealing material by filling the annular cavity inside the cover with polyurethane foam through the filling hole (9) on the rigid protective cover (3) to form a sealing filling layer. S5. Pour concrete protective layer. Pour protective layer concrete in the area of roof and wing plate (10). The concrete seeps into the anchor hole (11) to form a pin, so that the protective cover is firmly connected to the roof and the waterproof system is sealed inside.