A drainage system for preventing root penetration of pipes

Abstract

The application relates to a kind of drainage systems for preventing pipeline root seepage, including sewage vertical pipe, horizontal drainage pipeline and leakage water discharge component;Horizontal drainage pipeline connects indoor water appliance and sewage vertical pipe;Leakage water discharge component has table mouth structure and accumulated water discharge vertical pipe;Wherein, table mouth structure is arranged below the connection of sewage vertical pipe and horizontal drainage pipeline, and table mouth structure sealing sleeve is arranged on sewage vertical pipe, and cement mortar is filled between table mouth structure and the outer wall of sewage vertical pipe;Table mouth structure is provided with flange, and is closely attached to the bottom of structural floor slab;Table mouth structure is provided with opening, and ceramic layer and water-permeable non-woven fabric are laid above table top, table mouth structure is communicated with accumulated water discharge vertical pipe, and can discharge accumulated water seeped to table mouth structure.The application collects the leakage water of pipeline root by setting table mouth structure at the place where pipeline root is easy to seep water, and discharges the leakage water of pipeline root through accumulated water discharge vertical pipe, so as to achieve the purpose of preventing seepage, and reduce the cost of leakage rectification.

Description

Technical Field

[0001] This application belongs to the field of building water supply and drainage technology, and specifically relates to a drainage system that prevents leakage at the base of pipes. Background Technology

[0002] Leakage is one of the most common quality problems in buildings. Generally, as long as the rigid waterproofing of the concrete and its secondary waterproofing are of qualified quality and meet the requirements of the water tightness test, leakage will not occur. The most likely location for leakage is at the base of pipes. Once leakage occurs, subsequent repairs are costly and difficult. Due to the widespread use of same-floor drainage systems, leakage at the base of sewage risers has become a major problem. Therefore, there is an urgent need for a drainage system that prevents leakage at the base of pipes. Summary of the Invention

[0003] In view of the above analysis, the present invention aims to provide a drainage system that prevents leakage at the base of pipes, so as to solve one or more of the above-mentioned problems existing in the prior art.

[0004] The objective of this invention is achieved as follows:

[0005] A drainage system for preventing leakage at the base of pipes, comprising:

[0006] Sewage riser;

[0007] A horizontal drainage pipe connects indoor water appliances to the sewage riser.

[0008] Leakage drainage assembly, featuring a platform structure and a drain riser for accumulated water;

[0009] The platform structure is located below the connection between the sewage riser and the horizontal drainage pipe, and the platform structure is sealed and fitted onto the sewage riser; the platform structure is open and configured to receive leaked water and discharge the leaked water to the water discharge riser.

[0010] Furthermore, the platform structure has a platform surface, and the platform surface is recessed downwards and integrally formed with a first tube body and a second tube body;

[0011] The first pipe body is coaxially sleeved outside the sewage riser, and the lower part of the first pipe body is sealed to the riser converter through a sealed adapter sleeve.

[0012] The lower part of the second pipe is connected to the water discharge riser below via a lower connecting pipe. An upper connecting pipe is connected to the top opening of the second pipe, which is connected to the water discharge riser above. A drain outlet is provided at the connection between the top opening of the second pipe and the upper connecting pipe.

[0013] Furthermore, the edge of the platform protrudes upwards with a flange, and the top openings of the first tube and the second tube are opened on the platform and located within the area enclosed by the flange.

[0014] Furthermore, the second pipe body, the lower connecting pipe, the upper connecting pipe, and the water discharge riser are arranged coaxially.

[0015] Furthermore, the sealing adapter sleeve has an integral structure of a first section and a second section. The inner diameter of the first section is larger than the outer diameter of the first pipe body, and the inner diameter of the second section is larger than the outer diameter of the sewage riser and the riser converter and smaller than the inner diameter of the first section.

[0016] Furthermore, a first seal is provided between the first section and the first pipe body, and a second seal is provided between the second section and the riser converter.

[0017] Furthermore, the structural floor slab is provided with installation openings, the platform structure is fixed in the installation openings, and the installation openings are backfilled to form a backfill layer.

[0018] Furthermore, the backfill layer includes cement mortar, a layer of expanded clay, a permeable nonwoven fabric, and a layer of expanded clay concrete arranged from bottom to top; the top surface of the cement mortar is flush with the platform surface, the drainage outlet is located at the bottom of the expanded clay layer, and the expanded clay particles in the expanded clay layer are blocked from entering the second pipe body by the permeable nonwoven fabric.

[0019] Furthermore, the drain pipe is connected to the atmosphere, allowing water entering the drain pipe to flow out under the influence of gravity.

[0020] Furthermore, the connection between the sewage riser and the horizontal drainage pipe is located indoors or outdoors.

[0021] Furthermore, the flange is larger than the installation opening, and the flange is in close contact with the bottom of the structural floor slab.

[0022] Furthermore, a vortex generator is provided at the connection between the sewage riser and the horizontal drainage pipe.

[0023] Furthermore, the platform is also provided with a support bracket for anchoring to the structural floor slab.

[0024] Compared with existing technologies, the drainage system for preventing leakage at the pipe root provided by this invention uses a platform structure at the easily leaking point at the pipe root to collect leaking water and discharge it into the building through the water drainage riser. Even if leakage occurs at the pipe root, it will not seep down to the floor below, but will be discharged directly outside the building, thereby achieving the purpose of preventing leakage. Moreover, this structure does not require the destructive opening of the top surface of the floor slab for repair work when leakage occurs, reducing the cost of leakage rectification. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the drainage system for preventing leakage at the root of pipes provided by the present invention;

[0027] Figure 2 A partial structural schematic diagram of the drainage system for preventing leakage at the root of pipes provided by the present invention;

[0028] Figure 3 A partial cross-sectional view of the drainage system for preventing leakage at the pipe root provided by the present invention. Figure 1 ;

[0029] Figure 4 A partial cross-sectional view of the drainage system for preventing leakage at the pipe root provided by the present invention. Figure 2

[0030] Figure 5 Structural diagram of the platform structure provided by the present invention Figure 1 ;

[0031] Figure 6 Structural diagram of the platform structure provided by the present invention Figure 2 .

[0032] Figure label:

[0033] 1. Sewage riser;

[0034] 2. Horizontal drainage pipes;

[0035] 3. Countertop structure; 31. Countertop; 32. First pipe body; 33. Second pipe body; 34. Sealing adapter sleeve; 341. First section; 342. Second section; 35. Lower adapter pipe; 36. Upper adapter pipe; 37. Drain outlet; 38. Flange; 39. Support;

[0036] 4. Drainage water is discharged through the riser;

[0037] 5. Hydrocyclone;

[0038] 6. Structural floor slabs;

[0039] 7. Water appliances;

[0040] 8. Riser converter;

[0041] 9. Backfill layer; 90. Lightweight aggregate concrete backfill layer; 91. Permeable non-woven fabric; 92. Lightweight aggregate layer; 93. Cement mortar;

[0042] 10. Install the opening;

[0043] 11. First sealing element;

[0044] 12. Second sealing element;

[0045] 13. Third sealing element. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be noted that, unless otherwise specified, the implementation methods and features in the implementation methods in this disclosure can be combined, separated, interchanged, and / or rearranged. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] In the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0048] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0049] Example 1

[0050] A specific embodiment of the present invention, such as Figures 1 to 6As shown, a drainage system for preventing leakage at the base of pipes is disclosed, including a sewage riser 1, a horizontal drainage pipe 2, and a leakage discharge assembly. The sewage riser 1 is responsible for the vertical transport of sewage and wastewater. The horizontal drainage pipe 2 connects indoor water appliances 7 and the sewage riser 1, and is responsible for discharging sewage and wastewater from the building. The inlet end of the horizontal drainage pipe 2 is connected to the indoor water appliances 7, and the outlet end of the horizontal drainage pipe 2 is connected to the sewage riser 1. The connection between the sewage riser 1 and the horizontal drainage pipe 2 is the most prone to leakage. The leakage discharge assembly has a platform structure 3 and a water discharge riser 4. The water discharge riser 4 is responsible for the vertical transport of leakage water at the base of the sewage riser 1, and the platform structure 3 is responsible for collecting the leakage water at the base and discharging it into the water discharge riser 4.

[0051] The platform structure 3 is located below the connection between the sewage riser 1 and the horizontal drainage pipe 2, and the platform structure 3 is sealed and fitted onto the sewage riser 1; the platform structure 3 is open and connected to the water discharge riser 4, so as to discharge the water that has leaked into the platform structure 3.

[0052] Specifically, the platform structure 3 has a platform 31 and a first pipe 32, a second pipe 33 and a flange 38 provided on the platform 31. The flange 38 is located at the edge of the platform 31 and protrudes upward to form a water-blocking structure. The flange 38 is in contact with or sealed to the bottom of the structural floor slab 6. When water leakage occurs, the leakage water will flow into the platform 31. Since the flange 38 protrudes from the platform 31, the leakage water will not leak out from the flange 38, but will flow directly into the water discharge riser 4 through the drain outlet 37. The first pipe body 32 and the second pipe body 33 are both integrally formed by recessing the platform 31 downwards. The top openings of the first pipe body 32 and the second pipe body 33 are opened on the platform 31 and located in the area enclosed by the flange 38. The first pipe body 32 is coaxially sleeved outside the sewage riser 1. The lower part of the first pipe body 32 is sealed and connected to the riser converter 8 through the sealing adapter sleeve 34. The lower part of the second pipe body 33 is connected to the lower water discharge riser 4 through the lower adapter pipe 35. The top opening of the second pipe body 33 is connected to the upper adapter pipe 36, which is connected to the upper water discharge riser 4. The top opening of the second pipe body 33 and the connection of the upper adapter pipe 36 are provided with a drain outlet 37, through which the water in the platform structure 3 is discharged into the water discharge riser 4. Except for the drain outlet 37, all other locations are sealed connections. That is, the upper connecting pipe 36 is sealed to the upper water discharge riser 4, the lower part of the second pipe 33 is sealed to the lower connecting pipe 35, and the lower connecting pipe 35 is sealed to the lower water discharge riser 4.

[0053] In this embodiment, the second pipe body 33, the lower connecting pipe 35, the upper connecting pipe 36 and the water discharge riser 4 are arranged coaxially.

[0054] In one optional embodiment, the sealing adapter sleeve 34 has an integral structure of a first section 341 and a second section 342. The inner diameter of the first section 341 is larger than the outer diameter of the first pipe body 32, and the inner diameter of the second section 342 is larger than the outer diameter of the sewage riser 1 and the riser converter 8 but smaller than the inner diameter of the first section 341. A first sealing element 11 is provided between the first section 341 and the first pipe body 32, a second sealing element 12 is provided between the second section 342 and the riser converter 8, and a third sealing element 13 is provided between the second pipe body 33 and the lower adapter pipe 35. Optionally, the first sealing element 11, the second sealing element 12, and the third sealing element 13 are sealing strips or sealing rings.

[0055] In this embodiment, the water discharge riser 4 is connected to the atmosphere, so that the water entering the water discharge riser 4 flows out under the action of gravity.

[0056] In this embodiment, the connection between the sewage riser 1 and the horizontal drainage pipe 2 is located indoors or outdoors. That is, the sewage riser 1 and the water discharge riser 4 can be arranged indoors or outdoors, but are preferably arranged indoors.

[0057] In one alternative embodiment, a vortex generator 5 is provided at the connection between the sewage riser 1 and the horizontal drainage pipe 2. The vortex technology is used to make the water flow rotate along the pipe wall to form a hollow exhaust channel, which is conducive to air flow and smooth drainage.

[0058] In one alternative embodiment, before the structural floor slab is poured, an installation opening 10 is reserved according to the location of the countertop structure 3 as required in the design drawings. During installation, the factory-prefabricated countertop structure 3 is fixed in the installation opening 10, and the countertop structure 3 is fixedly connected to the structural floor slab 6 through a bracket 39. The size of the installation opening 10 is smaller than the countertop size of the countertop structure 3, that is, the projection of the installation opening 10 in the plane falls within the range defined by the flange 38 of the countertop structure 3.

[0059] After installation, the installation opening 10 is backfilled to form a backfill layer 9. The backfill layer 9 includes cement mortar 93, expanded clay layer 92, permeable non-woven fabric 91, and expanded clay concrete backfill layer 90 arranged from bottom to top. Among them, cement mortar 93 is only filled in the mortar filling area formed between the sealing transition sleeve 34, the first pipe body 32 and the sewage riser 1. The top surface of cement mortar 93 is flush with the platform 31 to avoid the cement mortar blocking the drain outlet 37. Expanded clay layer and permeable non-woven fabric are laid on the platform. Expanded clay layer 92, permeable non-woven fabric 91 and expanded clay concrete backfill layer 90 wrap around the upper transition pipe 36, so that the drain outlet 37 of the platform structure 3 is located at the bottom of expanded clay layer 92, and the permeable non-woven fabric blocks the expanded clay particles of expanded clay layer 92 from entering the second pipe body 33 from the drain outlet 37. Because there are gaps in the expanded clay layer 92, and these gaps are connected to the drain outlet 37, the leaking water can pass through the expanded clay layer 92 and the drain outlet 37 in sequence, and enter the water discharge riser 4.

[0060] To accommodate different types of sewage risers 1, the sealing adapter sleeve 34 comes in various sizes. The appropriate sealing adapter sleeve 34 is selected based on the shape and size of the sewage riser 1. After installation, a mortar filling area is formed between the sealing adapter sleeve 34, the first pipe body 32, and the sewage riser 1. Cement mortar 93 is then filled into the mortar filling area to fill the gap between the platform structure 3 and the outer wall of the sewage riser 1, thus forming a sealing structure. The filling height of the cement mortar 93 is flush with the platform surface 31.

[0061] In one alternative embodiment, a riser converter 8 is provided on the lower side of the platform structure 3 to accommodate sewage risers 1 of different shapes. At the same time, a water discharge riser 4 is installed at the second pipe body 33 and the upper connecting pipe 36 of the platform structure 3.

[0062] After the overall installation of the drainage system is completed, the installation opening 10 will be backfilled. Specifically, the mortar filling area formed between the sealing transition sleeve 34, the first pipe body 32, and the sewage riser 1 will be filled with cement mortar 94, with the top surface of the cement mortar 94 flush with the platform surface 31 of the platform structure 3. Then, a layer of expanded clay aggregate 92 will be laid at the bottom of the installation opening 10, followed by a layer of permeable non-woven fabric 91, ensuring that water seepage at the root can penetrate. The expanded clay aggregate layer and the permeable non-woven fabric form a permeable layer. Finally, a layer of expanded clay aggregate concrete backfill 90 will be laid on top of the permeable non-woven fabric 91, backfilling until it is flush with the upper surface of the structural floor slab 6. Working principle:

[0063] Wastewater is discharged from the drainage pipes of each water appliance 7, flows through horizontal pipes to the hydrocyclone 5, and finally exits the building through the sewage riser 1. When water appliances 7 above the structural floor slab 6 leak, since the concrete floor slabs undergo a water tightness test beforehand, the structural floor slab 6 is a waterproof concrete floor slab with anti-seepage function. It is impermeable, so the wastewater will not seep down. Instead, it flows along the slope of the concrete floor slab to the backfill layer 9 near the root of the pipe. The leaking wastewater continues to flow downward through the interconnected pores inside the ceramsite concrete backfill layer 90 to the permeable non-woven fabric 91, and finally enters the bottom ceramsite layer 92, where it is collected by the platform structure and flows directly through the drainage outlet 37 of the platform structure 3 to the water discharge riser 4, and then out of the building.

[0064] Compared with existing technologies, the drainage system for preventing leakage at the pipe root provided in this embodiment uses a platform structure at the easily leaking point at the pipe root to collect leaking water and discharge it into the building through the water drainage riser. Even if leakage occurs at the pipe root, it will not seep down to the floor below, but will be discharged directly outside the building, thereby achieving the purpose of preventing leakage. Moreover, this structure does not require the destructive opening of the top surface of the floor slab for repair work when leakage occurs, reducing the cost of leakage rectification.

[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A drainage system for preventing leakage at the base of pipes, characterized in that, include: Sewage riser (1); A horizontal drainage pipe (2) connects indoor water appliances (7) and the sewage riser (1); The leakage drainage assembly has a platform structure (3) and a water drainage riser (4). The platform structure (3) is located below the connection between the sewage riser (1) and the horizontal drainage pipe (2), and the platform structure (3) is sealed on the sewage riser (1), filling the gap between the platform structure (3) and the outer wall of the sewage riser (1) to form a sealed structure; the platform structure (3) is open, and the drain outlet (37) of the platform structure (3) is connected to the water discharge riser (4), and is configured to receive the leakage water and discharge the leakage water to the water discharge riser (4). The platform structure (3) has a platform (31), and the platform (31) is recessed downward and integrally formed with a first tube (32) and a second tube (33). Among them, the first pipe body (32) is coaxially sleeved outside the sewage riser (1), and the lower part of the first pipe body (32) is sealed to the riser converter (8) through the sealing adapter sleeve (34); The lower part of the second pipe body (33) is connected to the water discharge riser (4) below via the lower connecting pipe (35). The top opening of the second pipe body (33) is connected to the upper connecting pipe (36), which is connected to the water discharge riser (4) above. A drain outlet (37) is provided at the connection between the top opening of the second pipe body (33) and the upper connecting pipe (36).

2. The drainage system for preventing leakage at the pipe root as described in claim 1, characterized in that, The edge of the platform (31) protrudes upward and is provided with a flange (38). The top openings of the first tube (32) and the second tube (33) are opened on the platform (31) and located in the area enclosed by the flange (38).

3. The drainage system for preventing leakage at the pipe root as described in claim 1, characterized in that, The sealing adapter sleeve (34) has a first section (341) and a second section (342) with an integral structure. The inner diameter of the first section (341) is larger than the outer diameter of the first pipe body (32). The inner diameter of the second section (342) is larger than the outer diameter of the sewage riser (1) and the riser converter (8) and smaller than the inner diameter of the first section (341).

4. The drainage system for preventing leakage at the pipe root as described in claim 3, characterized in that, A first seal is provided between the first section (341) and the first pipe body (32), and a second seal is provided between the second section (342) and the riser converter (8).

5. The drainage system for preventing leakage at the pipe root as described in claim 2, characterized in that, The structural floor slab (6) is provided with an installation opening (10), the platform structure (3) is fixed in the installation opening (10), and the installation opening (10) is backfilled to form a backfill layer (9).

6. The drainage system for preventing leakage at the pipe root as described in claim 5, characterized in that, The backfill layer (9) includes cement mortar (93), ceramsite layer (92), permeable nonwoven fabric (91), and ceramsite concrete backfill layer (90) arranged from bottom to top; the top surface of cement mortar (93) is flush with the platform (31), the drain outlet (37) is located at the bottom of ceramsite layer (92), and the permeable nonwoven fabric is used to block the ceramsite of ceramsite layer (92) from entering the second pipe body (33).

7. The drainage system for preventing leakage at the pipe root as described in claim 1, characterized in that, The water discharge riser (4) is connected to the atmosphere, so that the water entering the water discharge riser (4) flows out under the action of gravity.

8. The drainage system for preventing leakage at the pipe root as described in claim 1, characterized in that, The connection between the sewage riser (1) and the horizontal drainage pipe (2) is located indoors or outdoors.

9. The drainage system for preventing leakage at the pipe root as described in claim 5, characterized in that, The flange (38) is larger than the installation opening (10), and the flange (38) is in close contact with the bottom of the structural floor slab (6).

Images