Drainage mechanism for shallow caisson room with water
By employing a structural layer, leveling and sloping layer, waterproof layer, hydrophobic layer, filling layer, and drain casing in the shallow sump water-filled room, combined with polymer waterproof coating and polyvinyl chloride (PVC) hydrophobic board, the problems of water seepage and leakage were solved, improving the waterproof effect and service life.
Patent Information
- Application Number
- CN202422533523.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Shallow sump tanks with water in the room pose a risk of water seepage during waterproofing, and the drainage pipe joints are difficult to clean, leading to frequent leakage problems.
The system employs a structural design consisting of a structural layer, a leveling and sloping layer, a waterproof layer, a hydrophobic layer, a filling layer, a surface layer, and a drain housing. Combined with polymer waterproof coatings, PVC hydrophobic boards, and stainless steel drains, it forms an effective drainage and waterproofing system.
It improves the overall waterproof performance of the water-filled room in the shallow sump, reduces the risk of leakage, extends the service life, and reduces labor costs.
Smart Images

Figure CN223577496U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of for shallow caisson water room drainage mechanism, belong to drainage building construction technical field. BACKGROUND
[0002] Shallow caisson water room is a kind of design form commonly used in decoration in recent years, which sets the ground of water area as shallow sinking structure, to provide better aesthetics and practicality under the condition of reducing backfill thickness.
[0003] However, there are some problems in the waterproof treatment of shallow caisson water room.
[0004] On the one hand, the depth of shallow caisson is shallow, and it is often difficult to install the bottom drainage equipment, water can easily penetrate into the below through the gap, spread into the room through the threshold, increase the risk of water penetration.
[0005] On the other hand, it is difficult to clean the interface part of shallow caisson and drainage pipe, which leads to water penetration and leakage problems.
[0006] Traditional waterproof materials are difficult to play a good waterproof effect in the complex structure of shallow caisson, therefore, in view of the waterproof problem of shallow caisson water room, an optimized drainage structure design is needed, which can ensure effective drainage while improving overall waterproof performance, reducing leakage risk and prolonging service life.
[0007] Under this background, it is of great practical significance to develop a utility model patent specially for shallow caisson water room drainage structure. CONTENT OF UTILITY MODEL
[0008] The main purpose of the utility model is to provide a kind of shallow caisson water room drainage structure, which makes full use of the characteristics of shallow caisson, optimizes the drainage design through construction, improves the overall waterproof performance and avoids leakage.
[0009] The purpose of the utility model is achieved by adopting the following technical scheme:
[0010] A kind of shallow caisson water room drainage mechanism, comprising structure layer, leveling and sloping layer, waterproof layer, drainage layer, filling layer, surface layer, floor drain box and side wall waterproof structure,
[0011] The structure layer is the original floor slab, which serves as the bearing structure;
[0012] The leveling and sloping layer is laid on the structure layer, and the material used is cement mortar;
[0013] The waterproof layer is laid on the leveling and sloping layer, which includes waterproof mortar layer and waterproof coating layer, the waterproof coating layer uses polymer waterproof coating or high molecular waterproof coating, and the thickness of the coating is 2mm;
[0014] The hydrophobic layer is laid on the waterproof layer, and the hydrophobic layer is made of high-quality PC hydrophobic plate with a height of 18-25 mm, and the convex points are upward and the cup openings are downward;
[0015] The filling layer is laid on the hydrophobic layer, and the material is cement mortar;
[0016] The surface layer is laid on the filling layer, and the surface layer includes a cement mortar surface layer, a cement adhesive surface layer, and a tile surface layer.
[0017] The drain cover box is located at the lowest edge, and includes a stainless steel drain, a 3mm thick stainless steel vertical grille opening sleeve, a drain connecting pipe, a secondary drainage drain, and a bottom-penetrating PVC drainage vertical pipe.
[0018] The depth of the caisson from the finished surface of the building to the structure surface is controlled to be 80-100 mm thick.
[0019] Preferably, the structure layer is a reinforced concrete caisson bottom plate, and a sealing adhesive should be embedded around the bottom-penetrating PVC drainage vertical pipe.
[0020] Preferably, the leveling and sloping layer should be 1% sloped towards the drain cover box, and the intersection with the wall is rounded, and the side wall is provided with a 5mm thick protective layer.
[0021] Preferably, the waterproof mortar layer is made of a polymer admixture waterproof layer, and the waterproof coating layer should be fully coated on the bottom and wall of the box.
[0022] Preferably, the hydrophobic layer plate has a film thickness of not less than 1mm, and the cup body is a small pointed cup or a flat cup, which is fixed by steel nails.
[0023] Preferably, the filling layer is made of concrete mortar.
[0024] Preferably, the filling layer should prevent heavy objects from damaging the drain cover box during backfilling and pouring, and an isolation layer should be provided within a certain range of the vertical grille opening sleeve.
[0025] Preferably, the surface layer sloping layer should be 1% sloped towards the drain cover box; the tile surface layer is adhered by cement adhesive, and the tile surface layer uses a stainless steel external corner strip to wrap the edges of the tile in the water-free room.
[0026] Preferably, the drain cover box serves as the main drainage space, and the primary drainage of the surface layer flows through the drain connecting pipe and finally collects in the bottom-penetrating PVC drainage vertical pipe.
[0027] The secondary drainage mainly collects the seepage water of the hydrophobic layer and the filling layer through the secondary drainage drain in the stainless steel vertical grille opening sleeve.
[0028] The preferred side wall waterproof structure is the same as the surface layer, and the side wall leveling layer covers the waterproof coating layer on the four walls to a certain height above the finished surface.
[0029] The beneficial technical effects of the utility model are as follows:
[0030] The utility model provides a shallow caisson water room drainage mechanism,
[0031] 1. The drainage waterproof is carried out by using the coiled material hydrophobic plate, is easy to lay, and is durable;
[0032] The coiled material hydrophobic plate has strong water isolation function, is acid and alkali resistant, and is anti-aging, and the acid, alkali and salt in nature cannot cause damage to the coiled material hydrophobic plate, the coiled material is simple to lay and easy to install, and reduces the labor cost.
[0033] 2. The floor drain sleeve secondary drainage reduces leakage
[0034] The floor drain collects the surface layer water and imports the through-bottom PVC drainage vertical pipe through the connecting pipe; the sleeve collects the filling layer water and collects in the sewer pipe through the secondary drainage floor drain;
[0035] The isolation layer is arranged around the sleeve, reduces the water accumulation risk caused by the grid blockage, and has simple structure and good waterproof effect DETAILED DESCRIPTION
[0036] Figure 1 It is a whole two-point perspective structure schematic diagram according to a preferred embodiment of the utility model of a shallow caisson water room drainage mechanism;
[0037] Figure 2 It is a cross-section structure method schematic diagram according to a preferred embodiment of the utility model of a shallow caisson water room drainage mechanism;
[0038] Figure 3 It is a floor drain sleeve box local enlarged isometric schematic diagram according to a preferred embodiment of the utility model of a shallow caisson water room drainage mechanism.
[0039] In the drawing: 1, structure layer; 2, leveling and sloping layer; 3, waterproof layer; 4, hydrophobic layer; 5, filling layer; 6, surface layer; 7, floor drain sleeve box; 8, side wall waterproof structure; 301, waterproof mortar layer; 302, waterproof coating layer; 601, surface layer sloping layer; 602, cement adhesive surface layer combination layer; 603, surface brick surface layer; 604, stainless steel external corner strip; 701, stainless steel floor drain; 702, stainless steel vertical surface grid opening sleeve; 703, floor drain connecting pipe; 704, secondary drainage floor drain; 705, through-bottom PVC drainage vertical pipe. DETAILED DESCRIPTION
[0040] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0041] like Figure 1 - Figure 3 As shown in the figure, this embodiment provides a drainage mechanism for a shallow submerged room with water, including a structural layer 1, a leveling and slope-forming layer 2, a waterproof layer 3, a drainage layer 4, a filling layer 5, a surface layer 6, a floor drain housing 7, and a side wall waterproof structure 8.
[0042] Structural layer 1 is the original floor slab, which serves as the load-bearing structure;
[0043] Leveling and slope-finding layer 2 is laid on top of structural layer 1, and the material used is cement mortar.
[0044] The waterproof layer 3 is laid on the leveling and slope-forming layer 2, and includes a waterproof mortar layer 301 and a waterproof coating layer 302. The waterproof mortar layer 301 is made of polymer waterproof mortar, and the waterproof coating layer 302 is made of polymer waterproof coating or high-molecular waterproof coating, with a coating thickness of 2mm.
[0045] The hydrophobic layer 4 is laid on top of the waterproof layer 3. The hydrophobic layer 4 is made of high-quality PC polyvinyl chloride PVC hydrophobic board with a height of 18-25mm, with the convex points facing upwards and the cup opening facing downwards.
[0046] The filling layer 5 is laid on top of the hydrophobic layer 4, and the material used is cement mortar.
[0047] The surface layer 6 is laid on top of the filling layer 5 and includes a cement mortar surface layer slope layer 601, a cement adhesive surface layer bonding layer 602, and a brick surface layer 603.
[0048] The floor drain housing 7 is located at the lowest edge of the elevation and includes a stainless steel floor drain 701, a 3mm thick stainless steel vertical grille opening sleeve 702, a floor drain connecting pipe 703, a secondary drainage floor drain 704, and a bottom-penetrating PVC drainage riser 705.
[0049] The depth of the caisson from the finished building surface to the structural surface is controlled at 80-100mm.
[0050] Structural layer 1 is a reinforced concrete caisson bottom slab, and sealant should be filled around the PVC drainage riser 705 that penetrates the bottom.
[0051] In the leveling and sloping layer 2, a 1% slope should be made towards the drain box 7, and the corners at the junction with the wall should be rounded and smoothed as you tamp. A 5mm thick protective layer should be applied to the side wall.
[0052] The waterproof mortar layer 301 uses a polymer admixture waterproofing method, and the waterproof coating layer 302 should be applied to the bottom and walls of the tank.
[0053] The thickness of the hydrophobic layer 4 sheet film is not less than 1mm, and the cup body is a small pointed cup or a flat cup, which is fixed with steel nails.
[0054] The filling layer 5 is made of concrete mortar.
[0055] When backfilling and grouting the filling layer 5, heavy objects should be prevented from damaging the drain sleeve 7. An isolation layer should be installed within a certain range of the facade grid opening sleeve 702.
[0056] The surface layer 601 should be sloped at 1% towards the drain box 7; the brick surface layer 603 is bonded with cement adhesive and uses stainless steel corner strips.
[0057] The floor drain housing 7 serves as the main drainage space. The primary drainage from the surface layer 6 flows through the stainless steel floor drain 701, through the floor drain connecting pipe 703, and finally collects in the bottom-penetrating PVC drainage riser 705.
[0058] Secondary drainage mainly involves the collection of seepage from the hydrophobic layer 4 and the filling layer 5, which is then channeled through the stainless steel facade grille opening sleeve 702 and the secondary drainage floor drain 704 to the bottom-penetrating PVC drainage riser 705.
[0059] The side wall waterproofing construction method 8 is the same as the surface layer method 6. The side wall leveling layer covers the waterproof coating layer 302, which is turned up to a certain height above the finished surface.
[0060] like Figure 1 - Figure 3 As shown in the figure, the working process of a drainage mechanism for a shallow caisson with water in the room provided in this embodiment is as follows: the structural layer 1 is a reinforced concrete caisson bottom plate, which is tamped, smoothed and cleaned as it is tamped. Polyurethane building sealant is filled around the bottom PVC drainage riser 705 to prevent water seepage.
[0061] Leveling and sloping layer 2 is laid on top of structural layer 1. The thinnest part is 10mm thick cement mortar with a 1:2.5 mix ratio and M15 strength. It should be sloped 1% towards the drain box 7. The corners where it meets the wall should be rounded and smoothed as it is tamped. A 5mm thick protective layer should be applied to the side wall.
[0062] Waterproof mortar layer 301 is a 5mm thick waterproof mortar mixed with polymer admixtures. Waterproof coating layer 302 is an elastic single-component moisture-curing polyurethane waterproof coating film, with a coating thickness of 1-2mm, covering the bottom and walls of the tank, extending up to 150mm along the four walls, and horizontally extending to 200mm into the dry room. The polymer waterproof coating can be directly applied to various damp or dry substrates, exhibiting strong adhesion. The polymer in the coating film can penetrate into the micro-cracks of the substrate, and the film has good flexibility and weather resistance, providing both waterproofing and air-barrier functions, making it suitable for this construction and application scenario.
[0063] The hydrophobic layer 4 is laid on the waterproof layer 3, and is specifically made of high-quality PC hydrophobic plate with a film thickness of not less than 1 mm, a small sharp cup or a flat cup, and a polyvinyl chloride (PVC) hydrophobic plate with a height of 18-25 mm, the convex points are upward, the cup mouth is downward, and the hydrophobic plate is laid and fixed by steel nails, and the inside of the cup should be poured with cement mortar to ensure the compactness and stability and prevent the floor from sinking and cracking;
[0064] The filling layer 5 is laid on the hydrophobic layer 4, and the material should be selected from light materials with small compression deformation and low water absorption, and cement mortar is preferably selected, and the filling layer close to the drain sleeve should be provided with an isolation layer to prevent blockage;
[0065] The surface layer 6 is laid on the filling layer 5, the surface layer leveling layer 601 should be made of 10 mm thick 1:2.5 mix ratio M15 strength cement mortar, and should be 1% pitched towards the drain sleeve 7, the surface layer bonding layer 602 should be made of 5 mm thick 1:3 cement mortar, and the surface brick surface layer 603 should be selected from 10 mm thick anti-skid surface bricks, cement adhesive is used for pasting, and special joint filling glue is used for filling, the surface layer of adjacent non-water rooms is made in the same way, the surface bricks of the non-water rooms are pressed, the anti-skid surface bricks of the water rooms are used, and 15 mm wide 1 mm thick stainless steel external corner strips 604 are used for wrapping the edges of the surface bricks of the non-water rooms;
[0066] The side wall waterproof structure 8 is made in the same way as the surface layer 6, and the side wall leveling layer covers the waterproof coating layer 302 on the four walls and is turned up to the completed surface 150 mm;
[0067] The shallow caisson water room drainage structure provided by the utility model includes a stainless steel drain 701, a stainless steel vertical surface grille opening sleeve 702, a drain connecting pipe 703, a secondary drainage drain 704 and a bottom-penetrating PVC drainage vertical pipe 705;
[0068] The drain sleeve 7 is a main drainage space, the top layer is the stainless steel drain 701 for primary drainage, the stainless steel drain 701 is connected with the secondary drainage drain 704 through the drain connecting pipe 703, the four walls are surrounded by the stainless steel vertical surface grille opening sleeve 702 to form a central drainage collection space, the bottom part is provided with the secondary drainage drain 704, the secondary drainage drain 704 is used as the filling layer 5, and the two parts of the drainage are finally collected in the bottom-penetrating PVC drainage vertical pipe 705;
[0069] When the filling layer 5 is backfilled and poured, heavy objects should be prevented from damaging the drain sleeve 7, and the specific method is that the vertical surface grille opening sleeve 702 is wrapped with non-woven fabric within a range of 200 mm around the vertical surface grille opening sleeve 702, and 15-20 mm washing clean gravel is used as an isolation layer to avoid grille blockage and cause caisson water accumulation.
[0070] Embodiment: as Figure 1 、 Figure 2As shown, the utility model provides a kind of for shallow caisson water room drainage structure, including structural layer 1, leveling and sloping layer 2, waterproof layer 3, drainage layer 4, filling layer 5, surface layer 6, floor drain sleeve box 7 and side wall waterproof structure 8;
[0071] The caisson depth from building finish surface to structural surface is controlled to be 80-100mm thick.
[0072] Structural layer 1 is reinforced concrete caisson bottom plate, and is embedded with polyurethane building sealant around bottom PVC drainage vertical pipe 705 after tamping and smoothing and cleaning, to prevent water seepage.
[0073] Leveling and sloping layer 2 is laid on structural layer 1, and is made of 10mm thick cement mortar with 1:2.5 mixing ratio and M15 strength, which should be 1% sloped towards floor drain sleeve box 7, and the joint with wall is rounded, and is tamped and smoothed, and 5mm thick protective layer is made on side wall;
[0074] Waterproof mortar layer 301 is made of 5mm thick waterproof mortar mixed with polymer additive, and waterproof coating layer 302 is made of elastic single-component wet-cured polyurethane waterproof coating film, with 1-2mm thick, which is coated on box bottom and wall, and is turned up to 150mm of finished surface along four walls, and is extended horizontally to 200mm of water-free room. Polymer waterproof coating can be directly constructed on various wet or dry base surfaces, has strong adhesion with base surface, high molecular substances in coating film can penetrate into fine cracks of base surface, coating film has good flexibility, good weather resistance, has waterproof function and air isolation function, and is suitable for construction and application scene here;
[0075] Drainage layer 4 is laid on waterproof layer 3, and is made of high-quality PC drainage plate with 18-25mm high polyvinyl chloride (PVC) and not less than 1mm thick plate film, and is laid with convex point upward and cup opening downward, and is fixed with steel nail, and cement mortar should be poured in cup to ensure compactness and stability, to prevent floor layer from sinking and cracking;
[0076] Filling layer 5 is laid on drainage layer 4, and light material with small compression deformation and low water absorption rate should be selected, and cement mortar is preferred, and isolation layer should be arranged on filling layer close to floor drain sleeve to prevent blockage;
[0077] Surface layer 6 is laid on filling layer 5, and surface sloping layer 601 should be made of 10mm thick cement mortar with 1:2.5 mixing ratio and M15 strength, and should be 1% sloped towards floor drain sleeve box 7; surface combination layer 602 should be made of 5mm thick cement mortar with 1:3; surface brick layer 603 should be made of 10mm thick anti-slip surface brick, which is pasted with cement adhesive, and is filled with special filling glue, and adjacent water-free room surface layers are made in the same way, and water-free room surface brick is pressed with anti-slip surface brick of water room, and 15mm wide 1mm thick stainless steel external corner strip 604 is used to wrap the edge of water-free room surface brick.
[0078] The side wall waterproof structure 8 is made in the same way as the surface layer 6, and the side wall leveling layer is covered on the four walls and turned up to the waterproof coating layer 302 at the finished surface 150mm.
[0079] As shown in Figure 3 The utility model provides a shallow caisson water room drainage structure, the floor drain sleeve 7 includes stainless steel floor drain 701, stainless steel vertical plane grating opening sleeve 702, floor drain connecting pipe 703, secondary drainage floor drain 704, bottom PVC drainage vertical pipe 705, and the floor drain sleeve 7 is used as the main drainage space.
[0080] The floor drain sleeve 7 is used as the main drainage space, and the top layer is the stainless steel floor drain 701 used for primary drainage, which is connected with the secondary drainage floor drain 704 through the floor drain connecting pipe 703; the four walls are surrounded by the stainless steel vertical plane grating opening sleeve 702 to form a central drainage collection space, and the bottom is provided with the secondary drainage floor drain 704, which is used as the secondary drainage of the filling layer 5, and the two parts of drainage are finally collected in the bottom PVC drainage vertical pipe 705.
[0081] When the filling layer 5 is backfilled and poured, heavy objects should be prevented from damaging the floor drain sleeve 7, and the specific method is that the 15-20mm size of the clean gravel wrapped with non-woven fabric is used as the isolation layer within the range of 200mm around the vertical plane grating opening sleeve 702 to avoid the grating blockage leading to the caisson water accumulation.
[0082] The above is only the further embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the conception of the utility model within the range disclosed by the utility model, which belongs to the protection scope of the utility model.
Claims
1. A drainage mechanism for a shallow caisson water room, characterized by: It comprises a structural layer (1), a leveling and sloping layer (2), a waterproof layer (3), a water draining layer (4), a filling layer (5), a surface layer (6), a floor drain sleeve box (7) and a side wall waterproof structure (8), The structural layer (1) is an original floor panel and serves as a load-bearing structure; The leveling and sloping layer (2) is laid on the structural layer (1) and is made of cement mortar; The waterproof layer (3) is laid on the leveling and sloping layer (2) and comprises a waterproof mortar layer (301) and a waterproof coating layer (302), wherein the waterproof mortar layer (301) is made of polymer waterproof mortar, and the waterproof coating layer (302) is made of polymer waterproof coating or high polymer waterproof coating and has a thickness of 2mm; The water draining layer (4) is laid on the waterproof layer (3) and is made of high-quality PC PVC water draining plate with a height of 18-25mm, which is laid with convex points upward and cup openings downward; The filling layer (5) is laid on the water draining layer (4) and is made of cement mortar; The surface layer (6) is laid on the filling layer (5) and comprises a cement mortar surface layer sloping layer (601), a cement adhesive surface layer combining layer (602) and a surface brick surface layer (603); The floor drain sleeve box (7) is located at the edge with the lowest elevation and comprises a stainless steel floor drain (701), a 3mm-thick stainless steel vertical grating opening sleeve (702), a floor drain connecting pipe (703), a secondary drainage floor drain (704) and a bottom-penetrating PVC drainage vertical pipe (705); The depth of the caisson from the completed surface of the building to the structural surface is controlled to be 80-100mm thick.
2. A water trap for a shallow caisson water room according to claim 1, wherein: The structural layer (1) is a reinforced concrete caisson bottom plate, which should be embedded with sealing glue around the bottom-penetrating PVC drainage vertical pipe (705).
3. A water trap for a shallow caisson water room according to claim 1, wherein: The leveling and sloping layer (2) should be 1% sloped toward the floor drain sleeve box (7), and the joint with the wall should be rounded and smoothed.
4. A water trap for a shallow caisson water room according to claim 1, wherein: The waterproof coating layer (302) should be fully coated on the bottom and walls of the box.
5. A water trap for a shallow caisson water room according to claim 1, wherein: The water draining layer (4) has a film thickness of not less than 1mm, and the cup body is a small pointed cup or a flat cup, which is fixed by steel nails.
6. A water trap for a shallow caisson water room according to claim 1, wherein: The filling layer (5) is made of concrete mortar.
7. A water trap for a shallow caisson water room according to claim 6, wherein: When the filling layer (5) is backfilled and poured, the floor drain sleeve box (7) should be prevented from being damaged by heavy objects, and an isolation layer should be provided within a certain range of the vertical grating opening sleeve (702).
8. A water trap for a shallow caisson water room according to claim 1, wherein: The surface layer sloping layer (601) should be 1% sloped toward the floor drain sleeve box (7); the surface brick surface layer (603) is adhered by cement adhesive, and the surface brick surface layer (603) is wrapped by a stainless steel external corner strip (604) at the edge of the surface brick of a water-free room.
9. A water trap for a shallow caisson water room according to claim 8, wherein: The floor drain sleeve box (7) serves as a main drainage space, and the primary drainage of the surface layer (6) flows through the floor drain connecting pipe (703) and is finally collected in the bottom-penetrating PVC drainage vertical pipe (705) via the stainless steel floor drain (701). The secondary drainage mainly collects the seepage of the water draining layer (4) and the filling layer (5) and is concentrated in the bottom-penetrating PVC drainage vertical pipe (705) via the stainless steel vertical grating opening sleeve (702) and the secondary drainage floor drain (704).
10. A water trap for a shallow caisson water room according to claim 1, wherein: The side wall waterproof structure (8) is made in the same way as the surface layer (6), and the side wall leveling layer is covered with the waterproof coating layer (302) on the four walls and turned upward to a certain height above the completed surface.