Toilet waterproof structure suitable for new building and leaking stoppage renovation
By using waterproof sealant and pressure-resistant waterproof plates in the bathroom waterproofing structure, the leakage problem was solved, the waterproofing performance was improved, the construction cycle was shortened, and rapid leak sealing and repair were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-14
AI Technical Summary
Existing bathroom waterproofing structures are still prone to leaks after construction, and traditional construction cycles are too long, affecting homeowners' daily lives.
The system consists of a concrete slab, a first waterproof layer, a leveling layer, and a tile layer, arranged from bottom to top. Waterproof sealant is used to fill the gaps between the tiles, and a pressure-resistant waterproof plate and inspection pipe are installed. The waterproof sealant and inspection pipe are used for quick leak sealing and repair. Waterproof backing board and waterproof coating are used to improve waterproof performance.
It effectively improves waterproofing performance, shortens the construction cycle, and can quickly detect and deal with water leakage problems, ensuring the normal use of the bathroom.
Smart Images
Figure CN224119858U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building waterproofing technology, specifically to a waterproofing structure for newly built and leak-stopping / renovation bathrooms. Background Technology
[0002] Currently, bathroom waterproofing construction generally uses traditional methods: For bathrooms with a sink (also known as a "backfill well"), the bottom of the sink is waterproofed first, and secondary drainage pretreatment is done at the base of the main drain pipe. After the waterproof layer has cured for 48 hours, a water tightness test is conducted for 48 hours. Backfilling is done with construction waste / cinder / cementite / foamed concrete. A cement mortar leveling layer is applied on the backfill layer, and wire mesh is placed inside the leveling layer. After the leveling layer has cured for 3-7 days, a second waterproofing and wall waterproofing are applied on the leveling layer. After the leveling layer waterproofing has cured for 48 hours, thick cement mortar tiles are applied. After about 7 days of tiling, the grout is filled and sealed. The entire standard construction process generally takes 22 days. For bathrooms without a sink, the ground base is leveled first, then waterproofing is done, a water tightness test is conducted, and finally, tiles are laid.
[0003] However, even when existing bathroom waterproofing structures are waterproofed using traditional construction methods and pass a water tightness test to confirm no leaks, leaks still frequently occur shortly after homeowners move in. This indicates that the waterproofing effect needs improvement, and the construction period is too long. In particular, when bathroom leaks are repaired and renovated by excavation, the long construction time affects the homeowner's daily life. Utility Model Content
[0004] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a waterproof structure for newly built and renovated bathrooms. This application provides the following technical solution:
[0005] It includes, from bottom to top, a concrete floor slab, a first waterproof layer, a leveling layer, and a tile layer, wherein the tile layer comprises a plurality of laid tiles and the spaces between the tiles are filled with waterproof grout.
[0006] The leveling layer includes a pressure-resistant and waterproof flat plate, and a tile adhesive is provided between the pressure-resistant and waterproof flat plate and the tile layer.
[0007] It also includes an inspection tube, which is open at both ends and extends from the tile layer to the surface of the first waterproof layer. An inspection cover is provided at the end of the inspection tube near the tile layer.
[0008] A non-horizontal slope-forming layer is provided below the first waterproof layer, and a sunken confluence point is provided on the slope-forming layer. The maintenance pipe is located directly above the confluence point.
[0009] A backfill layer is provided between the leveling layer and the first waterproof layer.
[0010] A support frame is provided inside the backfill layer, and a drainage outlet is provided below the support frame.
[0011] The waterproof sealant is a resin-based sealant.
[0012] The pressure-resistant and waterproof flat plate uses a waterproof backing board.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0014] It effectively replaces and improves the effect of traditional waterproofing construction. Waterproof grout is applied between the tiles to form a waterproof protective layer together with the tile surface. As a third waterproofing measure, it has better waterproofing performance.
[0015] Setting up a pressure-resistant waterproof flat plate, utilizing the flatness and waterproof, seepage-proof, and pressure-resistant functions of the plate, replaces the leveling layer and second waterproof layer made of cement mortar in traditional construction, greatly saving construction time.
[0016] Installing an inspection pipe allows for immediate observation of water leakage, facilitating analysis of the cause of the leak. It also enables timely handling of any leaks.
[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of a waterproof structure for a bathroom without a settling basin.
[0020] Figure 2 This is a schematic diagram of a waterproof structure for a bathroom with a sinkhole, designed for leak sealing, repair, and renovation.
[0021] Figure 3 This is a schematic diagram of a newly built waterproof structure for a bathroom with a settling basin.
[0022] Attached reference numerals: 1. Concrete floor slab; 2. First waterproof layer; 3. Leveling layer; 31. Pressure-resistant waterproof flat plate; 32. Tile adhesive; 33. Leveling mortar; 34. Wire mesh; 4. Tile layer; 41. Tile; 5. Waterproof grout; 6. Inspection pipe; 61. Inspection cover; 7. Slope layer; 71. Drainage point; 8. Backfill layer; 81. Support frame; 82. Drainage outlet; a. Drainage pipe. Detailed Implementation
[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] Example 1: Leak sealing, repair, and renovation of a bathroom without a settling tank;
[0027] Please refer to Figure 1 As shown, the structure includes, from bottom to top, a concrete floor slab 1, a first waterproof layer 2, a leveling layer 3, and a tile layer 4. The tile layer 4 includes several laid tiles 41, and the spaces between the tiles 41 are filled with waterproof sealant 5.
[0028] In practice: After cleaning, removing, and removing the joints between tiles 41 and other gaps on tile layer 4, waterproof grout 5 is used to refill and seal the joints to achieve a leak-stopping, repair, and renovation effect. The bathroom can be used normally 2 days after the refilling and sealing; the construction period is about 3 days; a water tightness test can be performed if necessary.
[0029] Example 2: Construction of a new toilet without a sedimentation tank;
[0030] Please refer to Figure 1 As shown, the structure includes, from bottom to top, a concrete floor slab 1, a first waterproof layer 2, a leveling layer 3, and a tile layer 4. The tile layer 4 includes several laid tiles 41, and the spaces between the tiles 41 are filled with waterproof sealant 5.
[0031] In specific implementation: First, clean the base surface of the concrete floor slab 1, and apply a waterproof coating on it with waterproof material that meets the full range of national industry standard test requirements, i.e., lay the first waterproof layer 2; after curing for 48 hours, conduct a 48-hour water tightness test; approximately 5 days.
[0032] Step 2: Laying tiles 41, leaving at least a 2mm wide grout line between each tile 41, and leaving a begonia corner at the external corner, forming tile layer 4; approximately 2 days.
[0033] The third step is to fill and seal the grout with waterproof sealant 5. After it has cured for 24 hours, conduct a water tightness test for 24 hours to ensure that there is no leakage. The bathroom can then be put into use. This process takes about 3 days. The total construction time is about 10 days.
[0034] In the second step, when the tile 41 is installed, a cement mortar layer of about 3-5 cm is laid on the first waterproof layer 2 and leveled to form a leveling layer 3. The tile 41 is then installed on the leveling layer 3.
[0035] Optionally, in the second step, a pressure-resistant waterproof plate 31 is laid on the first waterproof layer 2 to form a leveling layer 3. After applying tile adhesive 32 to the pressure-resistant waterproof plate 31, tiles 41 are attached on top of it.
[0036] Example 3: Leak sealing, repair, and renovation of a bathroom with a settling tank;
[0037] Please refer to Figure 2 As shown; it includes, from bottom to top, a concrete floor slab 1, a first waterproof layer 2, a leveling layer 3, and a tile layer 4. The tile layer 4 includes several laid tiles 41, and the spaces between the tiles 41 are filled with waterproof sealant 5.
[0038] The leveling layer 3 includes leveling mortar 33 and wire mesh 34 laid in the leveling mortar 33.
[0039] It also includes an inspection pipe 6, which is open at both ends and extends from the tile layer 4 to the surface of the first waterproof layer 2. An inspection cover 61 is provided at the end of the inspection pipe 6 near the tile layer 4.
[0040] A backfill layer 8 is provided between the leveling layer 3 and the first waterproof layer 2.
[0041] In practice: Day 1: On the bathroom tile layer 4, at the entrance of the wet area, which is located at the junction of the dry and wet areas but about 10 cm away from the junction, use an electric hole saw to make an inspection port with a diameter of 115 cm down to the backfill layer 8. Manually remove the backfill material of the backfill layer 8 below the inspection port to form an inspection hole. While removing the material, insert the inspection pipe 6 with a diameter of 110 cm down to the bottom of the inspection pipe 6 near the first waterproof layer 2 below the backfill layer 8. Check the water accumulation under the inspection pipe 6 and use a vacuum cleaner with a water absorption function to suck away the water through the inspection pipe 6 until it is clean.
[0042] Day 2: After opening, cleaning, and removing the joints and other gaps between the tiles 41 on the tile layer 4, the joints are filled and sealed with waterproof grout 5 to achieve a repair and renovation effect; at the same time, an inspection cover 61 is installed on the inspection pipe 6 and sealed tightly, flush with the tile layer 4.
[0043] Two days after the grout is refilled and sealed, the bathroom can be used normally. A water tightness test can be performed if necessary. The total construction time is 4 days. To ensure the effectiveness of the leak sealing and renovation, the homeowner can periodically unscrew the inspection cover 61 and observe the water accumulation at the bottom of the inspection pipe 6. If there is water accumulation, use a vacuum cleaner to dry it. If the water accumulation increases significantly, it is necessary to check whether the waterproof sealant 5 is properly sealed or check whether the water pipe a is leaking. If the waterproof sealant 5 is not properly sealed, it can be resealed. If the water pipe a is leaking, it is necessary to excavate and redo the waterproofing construction. The construction method is the same as that for newly built bathrooms with a sunken pool.
[0044] Example 4: Construction of a new toilet with a sedimentation tank;
[0045] Please refer to Figure 3 As shown; it includes, from bottom to top, a concrete floor slab 1, a first waterproof layer 2, a leveling layer 3, and a tile layer 4. The tile layer 4 includes several laid tiles 41, and the spaces between the tiles 41 are filled with waterproof sealant 5.
[0046] The leveling layer 3 includes a pressure-resistant and waterproof flat plate 31, and a tile adhesive 32 is provided between the pressure-resistant and waterproof flat plate 31 and the tile layer 4.
[0047] It also includes an inspection pipe 6, which is open at both ends and extends from the tile layer 4 to the surface of the first waterproof layer 2. An inspection cover 61 is provided at the end of the inspection pipe 6 near the tile layer 4.
[0048] A backfill layer 8 is provided between the leveling layer 3 and the first waterproof layer 2.
[0049] Below the first waterproof layer 2, there is a non-horizontal slope layer 7, and a sunken confluence point 71 is set on the slope layer 7. The maintenance pipe 6 is located directly above the confluence point 71.
[0050] A support frame 81 is provided inside the backfill layer 8, and a drainage outlet 82 is provided below the support frame 81.
[0051] In practice:
[0052] On the morning of day 1: First, perform base treatment on the concrete floor slab 1 to ensure cleanliness and hygiene. Then, use concrete mortar to create a slope on the concrete floor slab 1 to form a slope layer 7. The slope layer 7 is concave, with the bottom forming a confluence point 71. All sides are higher than the confluence point 71, so that any liquid flow on the slope layer 7 can flow to the confluence point 71. It is recommended that the confluence point 71 be located in the dry area at the junction of the wet and dry areas of the bathroom, about 10 cm away from the junction.
[0053] Afternoon of Day 1: After the slope layer 7 has cured, apply waterproof material that meets all the requirements of the national industry standard to its surface to form the first waterproof layer 2.
[0054] Day 2 and Day 3: Allow the first waterproof layer 2 to cure for 48 hours.
[0055] Day 4 and Day 5: Conduct a 48-hour water tightness test on the first waterproof layer 2.
[0056] Day 6: Erect a support frame 81 on the first waterproof layer 2; at the same time, ensure that a drainage outlet 82 is left between the bottom of the support frame 81 and the first waterproof layer 2.
[0057] Specifically, the support frame 81 can be made of red bricks stacked in a length-to-width ratio of 30CM*60CM, or it can be directly supported by a 10CM thick pressure-resistant and waterproof board; the slope layer 7 is concave, and the first waterproof layer 2 is coated on its surface, so the first waterproof layer 2 is also concave, that is, the edge is high and the part near the confluence point 71 is low, so that the bottom two ends of the support frame 81 are supported on the sides of the first waterproof layer 2, and the middle is open to form the drainage outlet 82.
[0058] On the morning of the 7th day: After the support frame 81 has solidified and stabilized, a maintenance pipe 6 with a diameter of 110CM is vertically placed above the confluence point 71. Then, harmless construction waste / ceramsite can be placed and piled up in each support frame 81 until it is level with the highest point of the support frame 81 to form a backfill layer 8.
[0059] On the afternoon of the 7th day: Attach the pressure-resistant and waterproof plate 31 with a thickness of ≥3CM horizontally to the support frame 81, and seal the edge of the pressure-resistant and waterproof plate 31 to the edge of the sedimentation tank with tile adhesive 32; leave a pipe opening on the pressure-resistant and waterproof plate 31 corresponding to the inspection pipe 6 so that the inspection pipe 6 can be inserted.
[0060] Day 8 and Day 9: Use tile adhesive 32 to attach tiles 41 to the pressure-resistant and waterproof flat plate 31, leaving at least 2mm gaps between each tile 41, and leaving begonia corners at the external corners. Install inspection cover 61 on the inspection pipe 6.
[0061] Days 10, 11, and 12: Use waterproof grout to fill and seal the grout lines between the 41 tiles. After it has cured for 24 hours, conduct a 24-hour water tightness test. Once you are sure there is no leakage, the bathroom can be put into use.
[0062] During use, the inspection cover 61 can be opened to observe the water accumulation at the manifold 71 below the inspection pipe 6 and the cause of leakage can be determined in conjunction with the water usage. If the bathroom is not in use but there is water accumulation at the manifold 71, it can be determined that the bathroom water inlet pipe is damaged. If the amount of water accumulation corresponds to the amount of water used in the bathroom, it can be determined that the water pipe is broken or that there is a leak in the waterproof sealant 5 and the pressure-resistant waterproof plate 31. If the water accumulation decreases without being pumped out, it can be determined that the first waterproof layer 2 has failed, etc.
[0063] Specifically, in the above embodiments, the waterproof sealant 5 is a resin-based sealant, which is required to meet the full-item test standards of RG(I) type in JC / T1004-2017 "Ceramic Tile Sealants" and JC / T547-2017.
[0064] The R2 type full-item index testing standard in "Ceramic Tile Adhesives" is used; the first waterproof layer 2 is coated with elastic waterproof mortar over a large area, and the corners and pipe openings are further filled with waterproof coating; the elastic waterproof mortar is required to meet the full-item index testing standards in JC / T2415-2017 "Waterproof Coating for Ceramic Tile Bonding Layer" and JC / T2029-2017 (2017) "Polymer Cement Waterproof Slurry", and the waterproof coating is required to meet the Type II full-item index testing standards in GB / T23445-2009 "Polymer Cement Waterproof Coating"; the pressure-resistant waterproof flat plate 31 is made of flat, water-resistant, corrosion-resistant, and pressure-resistant lightweight board, such as a waterproof backing board; the waterproof backing board is an upgraded and improved combination of extruded polystyrene foam (XPS) board and polymer mortar, which has good waterproof, seepage-proof, pressure-resistant, and leveling functions.
[0065] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A waterproof structure for a bathroom which is suitable for new construction and for renovation of a bathroom, characterized in that: The structure includes, from bottom to top, a concrete floor slab (1), a first waterproof layer (2), a leveling layer (3), and a tile layer (4). The tile layer (4) includes a plurality of laid tiles (41), and the spaces between the tiles (41) are filled with waterproof sealant (5). 2. A waterproof structure for a bathroom which is suitable for new construction and renovation, according to claim 1, characterized in that: The leveling layer (3) includes a pressure-resistant and waterproof flat plate (31), and a tile adhesive (32) is provided between the pressure-resistant and waterproof flat plate (31) and the tile layer (4).
3. A waterproof structure for a bathroom, which is suitable for new construction and renovation, according to claim 1, wherein: It also includes an inspection tube (6), which has openings at both ends and extends from the tile layer (4) to the surface of the first waterproof layer (2). An inspection cover (61) is provided at one end of the inspection tube (6) near the tile layer (4).
4. A waterproof structure for a bathroom which is suitable for new construction and renovation, according to claim 3, characterized in that: A non-horizontal slope-finding layer (7) is provided below the first waterproof layer (2), and a sunken confluence point (71) is provided on the slope-finding layer (7), with the inspection pipe (6) located directly above the confluence point (71).
5. A waterproof structure for a bathroom, which is suitable for new construction and renovation, according to claim 4, wherein: A backfill layer (8) is provided between the leveling layer (3) and the first waterproof layer (2).
6. A waterproof structure for bathrooms suitable for new construction and leak sealing / renovation as described in claim 5, characterized in that: A support frame (81) is provided inside the backfill layer (8), and a drainage outlet (82) is provided below the support frame (81).
7. A waterproof structure for bathrooms suitable for new construction and leak sealing / renovation as described in claim 1, characterized in that: The waterproof sealant (5) is a resin-based sealant.
8. A waterproof structure for bathrooms suitable for new construction and leak sealing / renovation as described in claim 2, characterized in that: The pressure-resistant waterproof flat plate (31) uses a waterproof backing plate.