An anti-seepage protection structure of a basement roof
By installing reinforced channel steel, water guide plate, support body and leakage plate on the basement roof slab, combined with leak-proof groove and main drainage groove, the problem of insufficient structural strength of the basement roof slab is solved, and a highly efficient anti-leakage effect and comprehensive protection capability are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-14
AI Technical Summary
Existing basement roof waterproofing structures lack sufficient structural strength when there is an indoor building above the basement roof, failing to meet comprehensive waterproofing requirements.
The water guiding and drainage parts are reinforced by using fixed-edge channel steel and water guide plates, and the water collection and protection area is increased by using support bodies and seepage plates. At the same time, a leak-proof trough and a main drainage trough are set to concentrate seepage water, thereby enhancing the structural strength and protection effect.
It achieves high coverage and leak-proof effect under indoor building conditions, enhances the overall structural strength, is suitable for various application scenarios, and has a dual leak-proof effect.
Smart Images
Figure CN224495227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of basement roof slab technology, and in particular to a waterproof protection structure for basement roof slabs. Background Technology
[0002] Traditional basement roof structures are not scientifically designed, resulting in poor drainage.
[0003] To address the aforementioned issues, patent document CN212336225U discloses a basement roof drainage structure, comprising a soil-covered planting layer, a drainage layer, a water-conducting and drainage layer, an isolation and protective layer, a waterproof coating, an insulation layer, and a concrete roof slab. The insulation layer is situated on top of the concrete roof slab, as are the waterproof coating, the isolation and protective layer, the water-conducting and drainage layer, and the soil-covered planting layer. The water-conducting and drainage layer includes drainage pipes and a fine-aggregate concrete protective layer, positioned between the isolation and protective layer and the drainage layer. The drainage pipes are evenly distributed within the fine-aggregate concrete protective layer. This basement roof drainage structure offers rapid drainage, excellent drainage effect, and simultaneously provides insulation and waterproofing for the basement.
[0004] Based on the above search and combined with existing technology, it was found that the existing waterproofing and protection structure for basement roof slabs mainly achieves the waterproofing effect through drainage. However, its drainage structure mainly uses pipes, and the waterproofing range it can provide is limited by the number of pipes (the denser the pipes, the better the waterproofing effect). However, if the area above the basement roof slab is the interior of the building, the structural strength is insufficient when pipes are installed inside, which does not meet the building requirements that the upper part of the basement roof slab is an interior structure. This results in a narrow scope of application for the waterproofing and protection structure (only for the outdoor conditions of the upper part of the basement roof slab), which cannot meet all the waterproofing needs of basement roof slabs. Therefore, a waterproofing and protection structure for basement roof slabs is needed. Utility Model Content
[0005] The purpose of this application is to provide a waterproof and leak-proof structure for basement roof slabs to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this application provides the following technical solution: a waterproof protection structure for a basement roof slab, comprising a roof slab base layer, wherein a waterproof membrane is fixedly laid on top of the roof slab base layer;
[0007] The top of the base layer is also fixed with a fixed edge channel steel surrounding the waterproof membrane. A drainage hole connected to the drainage pipe is opened on one side of the fixed edge channel steel. A water guide plate is fixed to the top of the waterproof membrane and fixed to the inside of the fixed edge channel steel. The lower end of the water guide plate is fixedly embedded in the fixed edge channel steel, and the upper end of the water guide plate protrudes upward from the inside of the fixed edge channel steel.
[0008] A seepage plate is fixedly mounted on the top of the water guide plate by a support body. The seepage plate has a flange extending downward around its perimeter and fixed to the upper outer side of the fixed edge channel steel. The seepage plate has through holes for seepage, and a top plate surface is fixed on the top of the seepage plate.
[0009] Preferably, the top of the water guide plate has multiple crisscrossing water collection channels, which divide the top of the water guide plate into multiple diversion bosses. The intersection edges of the water collection channels and the diversion bosses are chamfered.
[0010] Preferably, the fixed-edge channel steel is a U-shaped channel steel with a lower inner section and a higher outer section, and a drainage groove is formed on the fixed-edge channel steel, and an arc-shaped inner guide wall is formed on the top inner side of the fixed-edge channel steel.
[0011] The periphery of the water guide plate has an inclined guide wall whose lower end matches the upper end of the arc-shaped inner guide wall.
[0012] Preferably, multiple supports are provided, and the multiple supports are evenly distributed along the inner top wall of the seepage plate. The upper and lower ends of the supports are fixed to the inner top wall of the seepage plate and the bottom wall of the water collection channel, respectively. The lower end of the support located in the water collection channel forms a constricted foot.
[0013] Preferably, the seepage through hole on the seepage plate includes a tight-leaking groove, a main drain groove, and a water collection channel. The tight-leaking groove is opened at the top of the seepage plate and faces upward, while the main drain groove is opened at the bottom of the seepage plate. The tight-leaking groove and the main drain groove are connected through the water collection channel.
[0014] Preferably, the number of leak-proof troughs is greater than the number of main drain troughs, and the upper part of a main drain trough is connected to at least two water collection channels, and a main drain trough is connected to two surrounding leak-proof troughs through at least two water collection channels.
[0015] In summary, the technical effects and advantages of this utility model are as follows:
[0016] 1. In this utility model, by setting up a fixed edge channel steel and a water guide plate to enhance the water guiding and drainage part of the protective structure, and by using a support body and a seepage plate, the water collection and protection area of the entire basement roof slab is greatly increased, basically achieving a comprehensive protection effect. At the same time, the overall structural strength of the protective structure is greatly enhanced, which can meet the structural strength requirements of the basement roof slab above which is an indoor building. Compared with the existing technology, it is more comprehensively applicable to the use needs of various application scenarios, which is conducive to its widespread use.
[0017] 2. In this utility model, by setting up a different number of leak-proof grooves and a main drain groove, the seeping water can be concentrated when it passes through the seepage plate, so that the seeping water converges under the action of the water collection channel. On the one hand, it reduces the impact of the full opening on the structural strength of the seepage plate, and on the other hand, it can meet the seepage guidance and confluence requirements of high coverage, so that the protective structure has excellent effects of high structural strength and comprehensive protection. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application 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 of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional sectional view of this embodiment;
[0020] Figure 2 This is a side sectional view of this embodiment;
[0021] Figure 3 This is a side section of the seepage plate and a schematic diagram of the support structure in this embodiment;
[0022] Figure 4 for Figure 2 Enlarged view of the structure at point A in the middle.
[0023] In the diagram: 1. Top slab base layer; 2. Waterproof membrane; 3. Edge-fixing channel steel; 31. Drainage channel; 32. Drainage hole; 33. Arc-shaped inner guide wall; 4. Water guide plate; 41. Water collection channel; 42. Diversion boss; 43. Inclined guide wall; 5. Leakage plate; 51. Leakage sealing channel; 52. Main drainage channel; 53. Water collection channel; 6. Top slab surface layer; 7. Support body; 71. Recessed foot. Detailed Implementation
[0024] 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.
[0025] Example: Reference Figures 1-4The above-described waterproofing structure for a basement roof includes a roof base layer 1, on which a waterproof membrane 2 is fixedly laid. The waterproof membrane 2 can be a commonly used waterproof membrane in the prior art that is suitable for this embodiment, such as chlorinated polyethylene (CPE) waterproof membrane or high-density polyethylene (HDPE) waterproof membrane. Users can also choose other suitable waterproof membranes according to actual usage needs.
[0026] The top of the base layer 1 is also fixed with a fixed edge channel steel 3 surrounding the waterproof membrane 2. A drainage hole 32 connected to the drainage pipe is opened on one side of the fixed edge channel steel 3. A water guide plate 4 fixed to the inside of the fixed edge channel steel 3 is fixed on the top of the waterproof membrane 2. The lower end of the water guide plate 4 is fixedly embedded in the fixed edge channel steel 3, and the upper end of the water guide plate 4 protrudes upward from the inside of the fixed edge channel steel 3.
[0027] The top of the water guide plate 4 is fixedly supported by the support body 7 and a seepage plate 5 is fixedly mounted on it. The seepage plate 5 has a flange extending downward around its periphery and fixed to the upper outer side of the fixed edge channel steel 3. The seepage plate 5 has through holes for seepage. The top of the seepage plate 5 is fixed with a top plate surface layer 6.
[0028] Based on the above structure, by setting the fixed edge channel steel 3 and the water guide plate 4 to enhance the water guiding and drainage part of the protective structure, and by using the support body 7 and the seepage plate 5, the water collection and protection area of the entire basement roof slab is greatly increased, basically achieving a comprehensive protection effect. At the same time, the overall structural strength of the protective structure is greatly enhanced, which can meet the structural strength requirements of the basement roof slab above the indoor building. Compared with the existing technology, it is more comprehensively applicable to the use needs of various application scenarios (both outdoor and indoor), which is conducive to its widespread use.
[0029] It should be noted that the combined use of waterproof membrane 2 and edge-fixing channel steel 3 can achieve a further seepage prevention effect (as a second seepage prevention structure). That is, when the water guide plate 4 is damaged or the seepage prevention and diversion effect is poor, the waterproof membrane 2 can further intercept the seepage water, and together with the edge-fixing channel steel 3, it can drain the excess seepage water, forming a double seepage prevention effect.
[0030] Furthermore, the top of the water guide plate 4 is provided with multiple crisscrossing water collection channels 41, which divide the top of the water guide plate 4 into multiple diversion protrusions 42. The intersection edges of the water collection channels 41 and the diversion protrusions 42 are chamfered to allow the seepage water passing through the seepage plate 5 to converge, preventing the seepage water from being too dispersed and remaining on the water guide plate 4, making it difficult to drain in time, reducing the possibility of the seepage water further seeping downwards, and enhancing the anti-seepage effect.
[0031] Furthermore, the fixed-edge channel steel 3 is a U-shaped channel steel with a lower inner section and a higher outer section. A drainage groove 31 is formed on the fixed-edge channel steel 3, and an arc-shaped inner guide wall 33 is formed on the top inner side of the fixed-edge channel steel 3.
[0032] The water guide plate 4 has an inclined guide wall 43 on its periphery that is adapted to the upper end of the arc-shaped inner guide wall 33 at its lower end, so that the water flowing through the water guide plate 4 can flow smoothly down into the drainage trough 31, and after further gathering in the drainage trough 31, it is discharged from the drainage hole 32.
[0033] Furthermore, multiple supports 7 are provided, and the multiple supports 7 are evenly distributed along the inner top wall of the seepage plate 5. The upper and lower ends of the supports 7 are fixed to the inner top wall of the seepage plate 5 and the bottom wall of the water collection channel 41, respectively. The lower end of the supports 7 located in the water collection channel 41 forms a constricted foot 71. The multiple supports 7 can ensure the support strength. The fact that the lower end of the supports 7 is located in the water collection channel 41 instead of on the diversion boss 42 can avoid the diversion boss 42 from being damaged by pressure, thereby ensuring the integrity of the overall structure of the water guide plate 4 and reducing the probability of the water guide plate 4 being damaged and losing its guiding and converging function. The constricted foot 71 can reduce the obstruction to the water flow in the water collection channel 41, so that the water flow in the water collection channel 41 is relatively smooth.
[0034] Furthermore, the seepage through holes on the seepage plate 5 include a dense seepage groove 51, a main drain groove 52, and a water collection channel 53. The dense seepage groove 51 is opened at the top of the seepage plate 5 and faces upward, the main drain groove 52 is opened at the bottom of the seepage plate 5, and the dense seepage groove 51 and the main drain groove 52 are connected through the water collection channel 53.
[0035] The number of leak-proof troughs 51 is greater than the number of main drain troughs 52. Each main drain trough 52 has at least two water collection channels 53 connected to its upper part, and each main drain trough 52 is connected to two surrounding leak-proof troughs 51 through at least two water collection channels 53.
[0036] By setting up a varying number of leak-proof grooves 51 and a main drainage groove 52, the seeping water can be concentrated as it passes through the seepage plate 5, so that the seeping water converges under the action of the water collection channel 53. On the one hand, this reduces the impact of the full opening on the structural strength of the seepage plate 5, and on the other hand, it can meet the seepage guidance and confluence requirements of high coverage, so that the protective structure has excellent effects of high structural strength and comprehensive protection.
[0037] The working principle of this utility model is as follows: During daily use, if leakage occurs on the surface layer 6 of the top plate, the seepage water on the surface layer 6 of the top plate will seep downward through the leak-proof groove 51 and be collected under the action of the water collection channel 53. Then it will flow down through the main drain trough 52 and fall onto the water guide plate 4. After being guided by the diversion protrusion 42 of the water guide plate 4, it will enter the water collection guide trough 41, thereby further collecting and evenly distributing the water flow, dispersing the anti-leakage pressure when the local seepage is large. The water passing through the water collection guide trough 41 flows into the drainage trough 31 along the inclined guide wall 43 and the arc-shaped inner guide wall 33, and is collected in the drainage trough 31 and discharged from the drainage hole 32. The drainage effect is used to achieve the purpose of preventing leakage.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waterproofing structure for a basement roof slab, comprising a roof slab base layer (1), wherein a waterproof membrane (2) is fixedly laid on top of the roof slab base layer (1), characterized in that: The top of the base layer (1) is also fixed with a fixed edge channel steel (3) surrounding the waterproof membrane (2). A drainage hole (32) for connecting to a drainage pipe is opened on one side of the fixed edge channel steel (3). A water guide plate (4) is fixed to the top of the waterproof membrane (2) and fixed to the inner side of the fixed edge channel steel (3). The lower end of the water guide plate (4) is fixedly embedded in the fixed edge channel steel (3), and the upper end of the water guide plate (4) protrudes upward from the inner side of the fixed edge channel steel (3). The top of the water guide plate (4) is fixedly supported by a support body (7) with a seepage plate (5). The seepage plate (5) has a flange extending downward around its periphery and fixed to the upper outer side of the fixed edge channel steel (3). The seepage plate (5) has a seepage through hole. The top of the seepage plate (5) is fixed with a top plate surface layer (6).
2. The anti-leakage protection structure for a basement roof slab according to claim 1, characterized in that: The top of the water guide plate (4) has multiple crisscrossing water collection channels (41), which divide the top of the water guide plate (4) into multiple diversion bosses (42). The intersection edges of the water collection channels (41) and the diversion bosses (42) form chamfers.
3. The anti-seepage protection structure for a basement roof slab according to claim 2, characterized in that: The fixed-edge channel steel (3) is a U-shaped channel steel with a lower inner section and a higher outer section. A drainage groove (31) is formed on the fixed-edge channel steel (3), and an arc-shaped inner guide wall (33) is formed on the top inner side of the fixed-edge channel steel (3). The water guide plate (4) has an inclined guide wall (43) formed on its periphery, the lower end of which is adapted to the upper end of the arc-shaped inner guide wall (33).
4. The anti-seepage protection structure for a basement roof slab according to claim 2, characterized in that: Multiple supports (7) are provided, and the multiple supports (7) are evenly distributed along the inner top wall of the seepage plate (5). The upper and lower ends of the supports (7) are fixed to the inner top wall of the seepage plate (5) and the bottom wall of the water collection channel (41) respectively. The lower end of the supports (7) located in the water collection channel (41) forms a tapered foot (71).
5. The anti-seepage protection structure for a basement roof slab according to claim 1, characterized in that: The seepage through holes on the seepage plate (5) include a dense leakage groove (51), a main drain groove (52), and a water collection channel (53). The dense leakage groove (51) is opened at the top of the seepage plate (5) and faces upward. The main drain groove (52) is opened at the bottom of the seepage plate (5). The dense leakage groove (51) and the main drain groove (52) are connected through the water collection channel (53).
6. The anti-leakage protection structure for a basement roof slab according to claim 5, characterized in that: The number of the leak-proof troughs (51) is greater than the number of the main drain troughs (52). Each main drain trough (52) has at least two water collection channels (53) connected to its upper part, and each main drain trough (52) is connected to two surrounding leak-proof troughs (51) through at least two water collection channels (53).