A new bathroom waterproof floor structure
By designing a reasonable slope and water-stopping structure in the bathroom, combined with a waterproof coating and a sealed floor drain, the problems of unreasonable drainage organization and water seepage at the junction are solved, achieving efficient waterproofing and long-term durability in the bathroom.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUAZHU TECH CONSTR GRP CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
The existing bathrooms have insufficient waterproofing performance, mainly due to problems such as unreasonable drainage system, structural defects at the junction of wet and dry areas, and poor sealing of floor drain nodes, which cause water to seep into the dry area floor.
A novel waterproof bathroom floor structure is designed, including a shower tray, a dry area floor, and a water-stopping sill. A reasonable slope design is used to collect water into a strip drain, and an L-shaped stainless steel plate and a waterproof coating form a tightly sealed drainage outlet. The drain pipe is installed inside the drain pipe. Combined with rigid waterproof mortar slope and a cement mortar protective layer, the waterproof effect is ensured.
It effectively solves the problem of water seeping from the shower area into the dry area floor through the junction, achieving efficient drainage and waterproofing performance in the bathroom after long-term use, ensuring the durability and safety of the living space.
Smart Images

Figure CN224495678U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a novel waterproof floor structure for bathrooms, belonging to the technical field of bathroom waterproofing engineering. Background Technology
[0002] In building interior spaces, bathrooms, as frequently used and humid units, have waterproofing performance that directly affects the durability, safety, and quality of the overall living space. Current waterproofing treatments often focus on surface process parameters such as the number of coats, coating thickness, and uplift height of waterproofing materials. However, the root causes of waterproofing failure are often not limited to the material properties of the waterproofing layer itself, but also involve issues such as improper drainage systems, structural defects at the boundary between wet and dry areas, and inadequate sealing of floor drain joints.
[0003] Therefore, in order to address the shortcomings of existing technologies, a new type of waterproof bathroom floor structure is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of waterproof bathroom floor structure to solve the problems mentioned in the background art.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: a novel waterproof floor structure for a bathroom, comprising a shower tray, a dry area floor, and a water-stopping curb disposed between the shower tray and the dry area floor, characterized in that:
[0006] The shower tray has a water-retaining edge around its perimeter, which connects to a ramp. The highest point of the ramp is lower than the water-retaining edge, and the lowest point of the ramp connects to a strip drain.
[0007] A water-stopping sill is provided below which is an L-shaped stainless steel plate, which is fixedly installed on a concrete slab. The top of the concrete slab is provided with, from top to bottom, an adhesive layer, a cement mortar protective layer, a waterproof coating, and a rigid waterproof mortar slope. The rigid waterproof mortar slope exposes the L-shaped stainless steel plate. The waterproof coating is applied on top of the rigid waterproof mortar slope and extends to the surface of the L-shaped stainless steel plate. The water-stopping sill is bonded and fixed to the cement mortar protective layer through the adhesive layer.
[0008] Furthermore, a drain node sealing structure and a drain pipe are provided below the strip drain.
[0009] Furthermore, the rigid waterproof mortar slope is flush with the drainage pipe opening.
[0010] Furthermore, the waterproof coating extends below the drain outlet.
[0011] Furthermore, the drain node sealing structure includes a drain pipe, which is installed inside the drain pipe.
[0012] Furthermore, the water-stopping sill is made of U-shaped stone or U-shaped ceramic tile.
[0013] Furthermore, the slope includes a left slope, a middle slope, a right slope, and an upper slope.
[0014] Furthermore, a partition glass is provided above the water-stopping sill, and the lower end of the partition glass abuts against the water-stopping sill.
[0015] The beneficial effects of this utility model are:
[0016] The slope of this utility model consists of four slopes. The lowest point of the slope connects to the strip drain, allowing shower water to be collected and discharged into the strip drain through the slope. The water-stopping sill is set at the transition between the dry and wet areas. When applying a waterproof coating to the rigid waterproof mortar slope, the waterproof coating follows the shape of the L-shaped stainless steel plate. A cement mortar protective layer is then applied on top of the waterproof coating to prevent water from the shower area from seeping into the dry area through structural defects at the junction. Furthermore, the drain pipe is installed inside the drain pipe opening, and a waterproof coating is also provided between the drain pipe and the drain pipe to form a tightly sealed drain outlet, allowing a large amount of water to flow through the drain to the drain pipe. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the slope of the shower tray of this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-section of the water-stopping sill of this utility model;
[0020] Figure 4 This is a schematic diagram of the sealing structure of the drain node of this utility model;
[0021] In the diagram: 01. Shower base; 1.1. Water barrier; 1.2. Slope; 1.21. Left slope; 1.22. Middle slope; 1.23. Right slope; 1.24. Upper slope; 1.6. Strip drain; 1.61. Drain pipe; 02. Water-stop curb; 2.1. Waterproof coating; 2.2. L-shaped stainless steel plate; 2.3. Rigid waterproof mortar slope; 2.4. Concrete slab; 2.5. Cement mortar protective layer; 2.6. Adhesive layer; 03. Dry area floor; 04. Partition glass; 05. Drain pipe. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-4 As shown, Figures 1-4 The illustration schematically shows a novel waterproof bathroom floor structure according to the present invention.
[0024] A novel waterproof bathroom floor structure includes a shower tray 01, a dry area floor 03, and a water-stopping curb 02 disposed between the shower tray 01 and the dry area floor 03, characterized in that:
[0025] Shower base 01, with a water-retaining edge 1.1 around the perimeter, the water-retaining edge 1.1 connecting to the slope 1.2, the highest point of the slope 1.2 being lower than the water-retaining edge 1.1, and the lowest point of the slope 1.2 connecting to the strip drain 1.6;
[0026] A water-stop sill 02 is provided below which is an L-shaped stainless steel plate 2.2, which is fixedly installed on a concrete slab 2.4. The concrete slab 2.4 is topped with, from top to bottom, an adhesive layer 2.6, a cement mortar protective layer 2.5, a waterproof coating 2.1, and a rigid waterproof mortar slope 2.3. The rigid waterproof mortar slope 2.3 exposes the L-shaped stainless steel plate 2.2. A waterproof coating 2.1 is applied on top of the rigid waterproof mortar slope 2.3, extending to the surface of the L-shaped stainless steel plate 2.2. The water-stop sill 02 is fixedly attached to the cement mortar protective layer 2.5 by the adhesive layer 2.6.
[0027] Among them, the water in the shower area is efficiently collected into the strip drain 1.6 through a reasonable slope design, and then discharged from there.
[0028] The reasonable slope design range is 1%-3%, which is determined according to the actual bathroom shower floor 01.
[0029] The shower tray 01 is square or rectangular in shape, depending on the actual size of the shower area.
[0030] Among them, the strip drain 1.6 is located at the off-center position of the overall shower base 01.
[0031] The waterproof coating 2.1 is formed following the shape of the L-shaped stainless steel plate 2.2, and a cement mortar protective layer 2.5 is then applied to the waterproof coating 2.1.
[0032] Among them, the water-stopping sill 02 is fixed to the cement mortar protective layer 2.5 by the adhesive layer 2.6, which solves the problem of water in the shower area seeping into the dry area ground 03 through the structural defects at the junction.
[0033] Furthermore, a drain node sealing structure and a drain pipe 05 are provided below the strip drain 1.6.
[0034] Furthermore, the rigid waterproof mortar slope 2.3 is flush with the drainage pipe opening 05.
[0035] in,
[0036] Furthermore, the waterproof coating 2.1 extends below the drain pipe opening 05.
[0037] Furthermore, the floor drain node sealing structure includes a floor drain pipe 1.61, which is installed inside the drain pipe 05.
[0038] The strip drain 1.6 has a drain pipe 1.61 at its lower end. The drain pipe 1.61 presses against the waterproof coating 2.1 that extends into the drain pipe 05, forming a tightly sealed drain outlet. A large amount of water can pass through the strip drain 1.6 to the drain pipe 05. After long-term use in the bathroom, a small amount of water seepage on the floor will inevitably drain into the drain pipe 05 along the slope of the waterproof layer 2.1.
[0039] Furthermore, the waterstop 02 is made of U-shaped stone or U-shaped ceramic tile.
[0040] Furthermore, slope 1.2 includes left slope 1.21, middle slope 1.22, right slope 1.23 and upper slope 1.24.
[0041] Furthermore, a partition glass 04 is provided above the water-stop sill 02, and the lower end of the partition glass 04 abuts against the water-stop sill 02.
[0042] During showering, some of the water flows along the partition glass 04 to the overall shower tray 01.
[0043] The beneficial effects of this utility model are:
[0044] The slope of this utility model consists of four slopes. The lowest point of the slope connects to the strip drain, allowing shower water to be collected and discharged into the strip drain through the slope. The water-stopping sill is set at the transition between the dry and wet areas. When applying a waterproof coating to the rigid waterproof mortar slope, the waterproof coating follows the shape of the L-shaped stainless steel plate. A cement mortar protective layer is then applied on top of the waterproof coating to prevent water from the shower area from seeping into the dry area through structural defects at the junction. Furthermore, the drain pipe is installed inside the drain pipe opening, and a waterproof coating is also provided between the drain pipe and the drain pipe to form a tightly sealed drain outlet, allowing a large amount of water to flow through the drain to the drain pipe.
[0045] Installation steps of this utility model:
[0046] Step 1: Design and customize an integral shower tray 01 made of composite material according to the size of the shower area, ensuring that it includes a water-blocking edge 1.1, a slope 1.2 (including a left slope 1.21, a middle slope 1.22, a right slope 1.23, and an upper slope 1.24), and a strip drain 1.6 located off-center;
[0047] Step 2: Construction is carried out at the transition area between dry and wet areas. First, fix the L-shaped stainless steel plate 2.2 on the concrete slab 2.4. Cover the L-shaped stainless steel plate 2.2 with rigid waterproof mortar slope 2.3, and ensure that the L-shaped stainless steel plate 2.2 is exposed. Apply the waterproof coating 2.1 on the rigid waterproof mortar slope 2.3, and pay special attention to the treatment following the shape of the L-shaped stainless steel plate 2.2.
[0048] Step 3: After the waterproof coating 2.1 is completed, lay a cement mortar protective layer 2.5 on top of it. Finally, use the adhesive layer 2.6 to attach and fix the U-shaped stone or tile to the cement mortar protective layer 2.5 to form a water-stop 02;
[0049] Step 4: Install the lower end of the partition glass 04 at the contact point with the water-stop sill 02, ensuring that it is stable and well-sealed to prevent water from splashing onto the dry area during showering. Ensure that the rigid waterproof mortar slope 2.3 is flush with the drain pipe 05 opening, and that the waterproof coating 2.1 extends into the drain pipe opening 05.
[0050] Step 5: Install the strip drain 1.6 and the drain pipe 1.61 below it, so that it presses against the waterproof coating 2.1 that extends into the drain pipe 05 opening to ensure the sealing of the drain opening.
[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A novel waterproof bathroom floor structure, comprising a shower tray, a dry area floor, and a water-stopping curb disposed between the shower tray and the dry area floor, characterized in that: The shower tray has a water-retaining edge around its perimeter, which connects to a ramp. The highest point of the ramp is lower than the water-retaining edge, and the lowest point of the ramp connects to a strip drain. A water-stopping sill is provided below which is an L-shaped stainless steel plate, which is fixedly installed on a concrete slab. The top of the concrete slab is provided with, from top to bottom, an adhesive layer, a cement mortar protective layer, a waterproof coating, and a rigid waterproof mortar slope. The rigid waterproof mortar slope exposes the L-shaped stainless steel plate. The waterproof coating is applied on top of the rigid waterproof mortar slope and extends to the surface of the L-shaped stainless steel plate. The water-stopping sill is bonded and fixed to the cement mortar protective layer through the adhesive layer.
2. The novel waterproof bathroom floor structure as described in claim 1, characterized in that, The strip drain is equipped with a drain node sealing structure and a drain pipe below it.
3. The novel waterproof bathroom floor structure as described in claim 2, characterized in that, The rigid waterproof mortar slope is flush with the drainage pipe opening.
4. The novel waterproof bathroom floor structure as described in claim 3, characterized in that, The waterproof coating extends below the drain pipe opening.
5. A novel waterproof bathroom floor structure as described in claim 4, characterized in that, The floor drain node sealing structure includes a floor drain pipe, which is installed inside the drain pipe.
6. A novel waterproof bathroom floor structure as described in claim 5, characterized in that, The water-stopping sill is made of U-shaped stone or U-shaped ceramic tile.
7. A novel waterproof bathroom floor structure as described in claim 6, characterized in that, The slope includes a left slope, a middle slope, a right slope, and an upper slope.
8. A novel waterproof bathroom floor structure as described in claim 1, characterized in that, A partition glass is provided above the water-stopping sill, and the lower end of the partition glass abuts against the water-stopping sill.