An assembled quick-mounting waterproof ground structure and a mounting method thereof
By using a combination design of base plate, tile panel and water-retaining frame strip in prefabricated quick-installation flooring, combined with elastic sealing strip and waterproof sealant, the problem of water seepage and leakage at the corner of the bathroom floor and wall is solved, achieving a highly efficient waterproofing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU HENGLONG CONSTR GRP CO LTD
- Filing Date
- 2023-12-16
- Publication Date
- 2026-06-19
AI Technical Summary
When using prefabricated quick-installation flooring in bathrooms, water seepage and leakage are prone to occur at the corners where the floor meets the walls. This is mainly due to the aging and failure of the sealing mortar and waterproof sealant in a humid environment.
The structure includes a base plate, a tiled panel, and a water-retaining frame. The base plate has a drainage chamber and a water outlet pipe. The water-retaining frame has an elastic sealing strip and a pressing mechanism. The pressing mechanism presses the sealing strip tightly against the base plate and the wall, and the gaps are sealed with waterproof sealant. Cement mortar is then filled into the gaps to enhance the sealing performance.
It effectively prevents water leakage at the corners of the bathroom floor and walls, improves the waterproof performance of the prefabricated quick-installation floor, and can still block water flow through the elastic sealing strip even when the sealant ages, ensuring the airtightness of the floor and walls.
Smart Images

Figure CN117738420B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of decoration and renovation, and in particular to a prefabricated quick-installation waterproof floor structure and its installation method. Background Technology
[0002] Traditional bathroom flooring is typically installed using a wet method with cement mortar. This involves applying waterproofing and leveling the floor, resulting in a long curing period and consuming significant manpower and resources. If a lowered floor is required for installation, backfilling is also necessary, making the process cumbersome. However, with technological advancements, interior decoration is gradually moving towards greater efficiency and speed, leading to the emergence of prefabricated quick-installation flooring.
[0003] Current prefabricated quick-installation flooring construction techniques for bathrooms typically involve prefabricating the frame, baseboard, tile panels, and waterproofing board in a factory, then transporting them to the construction site for on-site installation. After the bathroom floor is laid, sealing mortar or waterproof sealant is usually applied to the corners where the floor meets the walls. However, because bathrooms are typically in a humid environment, both the sealing mortar and waterproof sealant will age over time, leading to water seepage and leaks at the corners where the bathroom floor meets the walls. Summary of the Invention
[0004] To address the problems existing in the prior art, this application provides a prefabricated quick-installation waterproof floor structure and its installation method, which has the effect that after the prefabricated quick-installation floor is installed, water leakage is less likely to occur at the corners between the bathroom floor and the walls.
[0005] Firstly, this application provides a prefabricated, quick-installation waterproof floor structure, which adopts the following technical solution:
[0006] A prefabricated, quick-installation waterproof floor structure includes a base plate, a tiled panel, and a water-retaining frame. The base plate is laid on the bathroom floor and has a drainage cavity inside, connected to a water outlet pipe for connecting to the bathroom's drainage pipe. The base plate has an inlet connected to the drainage cavity. The tiled panel is laid on the base plate. The water-retaining frame is installed at the joint between the base plate and the bathroom wall. The water-retaining frame has an installation groove along its length, and an elastic sealing strip is installed within the groove. Both sides of the water-retaining frame have openings communicating with the installation groove along its length. The water-retaining frame also has a pressing mechanism for pressing the elastic sealing strip out through the openings on both sides.
[0007] Optionally, the top wall of the base plate is provided with a plurality of placement slots, which are arranged in a matrix on the top wall of the base plate, and the placement slots are adapted to the ceramic tile panel.
[0008] Optionally, a drainage ditch is provided on the base plate and between two adjacent placement slots, and the water inlet is connected to the drainage ditch.
[0009] Optionally, a grating plate is fixedly installed on the base plate at the slot of the drainage ditch.
[0010] Optionally, the extrusion mechanism includes a pressure strip and a limiting component. The pressure strip is slidably disposed in the mounting groove along the length direction perpendicular to the water-blocking frame. The cross-section of the elastic sealing strip is U-shaped, and elastic protrusions are provided on both sides of the elastic sealing strip. The elastic protrusions on the elastic sealing strip pass through the openings on the water-blocking frame. The two side walls of the pressure strip gradually approach each other along the direction close to the elastic sealing strip, and the bottom of the pressure strip passes between the two elastic protrusions on the elastic sealing strip. The limiting component is used to prevent the pressure strip from sliding.
[0011] Optionally, the limiting component includes a plug-in block, a lever block, and a fixing member. The side wall of the mounting groove has a receiving groove communicating with the mounting groove. The plug-in block is slidably disposed in the receiving groove. The top wall of the water-blocking frame strip has an elongated groove communicating with the receiving groove along the sliding direction of the plug-in block. The lever block is slidably disposed in the elongated groove and fixedly connected to the plug-in block. The side wall of the pressure strip has a plug-in groove for the plug-in block to be inserted. The fixing member is used to prevent the plug-in block from sliding.
[0012] Optionally, the receiving groove is provided with an elastic element for driving the plug block to slide towards the pressure strip.
[0013] Optionally, a grouting pipe is fixedly installed in the installation groove, and a grout guiding pipe is installed in the installation groove along the length of the water-blocking frame. The grouting pipe is connected to the grout guiding pipe, and the grout guiding pipe is connected to multiple grout outlet pipes. Each of the grout outlet pipes is distributed along the length of the grout guiding pipe, and the grout outlet pipes penetrate the water-blocking frame and extend to the bottom of the water-blocking frame.
[0014] Secondly, this application provides an installation method for a prefabricated quick-installation waterproof floor structure, employing the following technical solution:
[0015] An installation method for a prefabricated, quick-installation waterproof floor structure includes the following steps:
[0016] S1. Install the water-blocking frame strip at the corner where the bathroom floor meets the wall;
[0017] S2. Apply a layer of concrete to the bathroom floor, then lay the base plate on the bathroom floor and level the base plate. Connect the water outlet pipe to the bathroom drainage pipe and ensure that the water-blocking frame is located in the joint between the base plate and the bathroom wall. After the concrete has solidified, the base plate is fixed.
[0018] S3. The elastic sealing strip is squeezed by the extrusion mechanism to push the elastic sealing strip out from the openings on both sides of the water-blocking frame strip and press it against the side wall of the base plate and the bathroom wall respectively.
[0019] S4. Apply waterproof sealant to the joints between the water-retaining frame and the base plate, as well as the joints between the water-retaining frame and the bathroom wall, to seal the gaps between the base plate and the wall.
[0020] S5. Use concrete to lay the tile panels on the base plate to complete the construction of the prefabricated quick-installation waterproof floor.
[0021] In summary, this application has the following beneficial technical effects:
[0022] 1. Install the water-retaining frame strip at the corner where the bathroom floor meets the wall. Apply a layer of concrete to the bathroom floor, then lay the base plate on the floor and level it. Connect the water outlet pipe to the bathroom's drainage pipe. At this point, the water-retaining frame strip is located within the joint between the base plate and the bathroom wall. After the concrete hardens, the base plate is fixed in place. Then, use a pressing mechanism to squeeze the elastic sealing strip out from the openings on both sides of the water-retaining frame strip, pressing it firmly against the side wall of the base plate and the bathroom wall. Next, apply waterproof sealant to the joints between the water-retaining frame strip and the base plate, as well as the joints between the water-retaining frame strip and the bathroom wall, to seal the gaps between the base plate and the wall. Finally, use concrete to lay the tile panel on the base plate, completing the construction of the prefabricated quick-installation waterproof floor. During bathroom use, if the waterproof sealant ages, the elastic sealing strip will block water in the bathroom, effectively preventing water leakage at the corner where the bathroom floor meets the wall. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0024] Figure 2 This is a schematic diagram illustrating the structure of the base plate in an embodiment of this application;
[0025] Figure 3 yes Figure 2 Enlarged view of section A;
[0026] Figure 4 This is a schematic diagram illustrating the structure of the water-retaining frame strip according to an embodiment of this application;
[0027] Figure 5 This is a structural sectional view of an embodiment of this application, mainly used to illustrate the installation relationship between the water-retaining frame strip and the base plate;
[0028] Figure 6 yes Figure 5 A magnified view of section B.
[0029] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Drainage chamber; 12. Outlet pipe; 13. Placement groove; 14. Drainage ditch seam; 15. Inlet; 16. Grating plate; 2. Ceramic tile panel; 3. Water-retaining frame strip; 31. Installation groove; 311. Receiving groove; 312. Long strip groove; 32. Elastic sealing strip; 321. Elastic protrusion; 33. Through opening; 34. Pressure strip; 341. Insertion groove; 35. Insertion block; 351. Pulling block; 352. Fixing component; 36. Elastic component; 37. Grout guide pipe; 371. Grouting pipe; 372. Outlet pipe; 38. Cover plate. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0031] This application discloses a prefabricated, quick-installation waterproof floor structure. (Refer to...) Figure 1 It includes a base plate 1 laid on the bathroom floor, a tile panel 2 laid on the base plate 1, and a water-blocking frame strip 3 installed in the joint between the base plate 1 and the bathroom wall.
[0032] Reference Figure 1 , 2 The base plate 1 has a drainage chamber 11 inside, and the drainage chamber 11 is connected to a water outlet pipe 12. The water outlet pipe 12 passes through the bottom wall of the base plate 1. When installing the base plate 1, a layer of concrete is applied to the bathroom floor, and then the base plate 1 is laid on the bathroom floor. The base plate 1 is leveled, and the water outlet pipe 12 is connected to the bathroom drainage pipe.
[0033] Reference Figure 1 , 2 The top wall of the base plate 1 is provided with several placement grooves 13. The placement grooves 13 are arranged in a matrix on the top wall of the base plate 1, and the placement grooves 13 are adapted to the tile panel 2. When laying the tile panel 2, a layer of concrete mortar is applied to the placement groove 13, and then the tile panel 2 is placed in the placement groove 13, thereby laying the tile panel 2 on the base plate 1. The laying of the tile panel 2 is convenient and quick.
[0034] Reference Figure 2 , 3A drainage ditch 14 is provided on the base plate 1 between two adjacent placement slots 13. The bottom wall of the drainage ditch 14 has multiple water inlets 15 that communicate with the drainage chamber 11. A grid plate 16 is welded and fixed on the base plate 1 at the groove position of the drainage ditch 14. After the tile panel 2 is laid, the top surface of the tile panel 2 is flush with the top wall of the grid plate 16, or the top surface of the tile panel 2 is higher than the top surface of the grid plate 16. Water from the bathroom floor is filtered through the grid plate 16 and enters the drainage ditch 14, then enters the drainage chamber 11 through the water inlets 15, and then is discharged through the water outlet pipe 12, thereby effectively and promptly draining the water from the floor.
[0035] Reference Figure 4 , 5 The water-blocking frame 3 is manufactured in a factory. The shape of the water-blocking frame 3 is a frame with its ends connected. The structure of the water-blocking frame 3 is adapted to the shape of the base plate 1. An installation groove 31 is provided on the water-blocking frame 3 along its length. An elastic sealing strip 32 is provided in the installation groove 31. The elastic sealing strip 32 is made of rubber and has a U-shaped cross section. Both sides of the elastic sealing strip 32 are provided with elastic protrusions 321. The cross section of the elastic protrusions 321 is circular and the elastic protrusions 321 are integrally formed with the elastic sealing strip 32. Both sides of the water-blocking frame 3 have openings 33 that communicate with the installation groove 31 along its length. The elastic protrusions 321 on both sides of the elastic sealing strip 32 are located in the openings 33 on both sides of the water-blocking frame 3.
[0036] Reference Figure 5 The water-blocking frame 3 is provided with a pressing mechanism for pressing out the two elastic protrusions 321 on the elastic sealing strip 32 from the openings 33 on both sides of the water-blocking frame 3. The pressing mechanism includes a pressing strip 34 and a limiting component. The pressing strip 34 is slidably disposed in the mounting groove 31 and is adapted to the mounting groove 31. After the water-blocking frame 3 is installed, the sliding direction of the pressing strip 34 is vertical. A limiting block is fixedly disposed on the side wall of the mounting groove 31. A limiting groove is opened on the side wall of the pressing strip 34 along the sliding direction of the pressing strip 34. The limiting block is slidably disposed in the limiting groove. The two side walls of the pressing strip 34 gradually approach each other in the direction close to the elastic sealing strip 32, and the bottom of the pressing strip 34 passes between the two elastic protrusions 321 on the elastic sealing strip 32.
[0037] After the water-blocking frame strip 3 and the base plate 1 are installed, the water-blocking frame strip 3 is located in the joint between the base plate 1 and the bathroom wall. By pressing down on the pressure strip 34, the pressure strip 34 squeezes the elastic protrusions 321 on both sides of the elastic sealing strip 32, and pushes the two elastic protrusions 321 out from the openings 33 on both sides of the water-blocking frame strip 3, and presses them against the side wall of the base plate 1 and the bathroom wall respectively. Then, waterproof sealant is applied to the joint between the water-blocking frame strip 3 and the base plate 1, and the joint between the water-blocking frame strip 3 and the bathroom wall, thereby sealing the gap between the base plate 1 and the wall.
[0038] Reference Figure 6 Multiple limiting components are provided and distributed circumferentially along the water-blocking frame 3. Each limiting component includes a plug-in block 35, a lever block 351, and a fixing member 352. Multiple receiving grooves 311 communicating with the mounting groove 31 are provided on the side wall of the mounting groove 31. Each receiving groove 311 corresponds to one of the limiting components. The plug-in block 35 is slidably disposed within the corresponding receiving groove 311, and the sliding direction of the plug-in block 35 is perpendicular to the sliding direction of the pressure strip 34. The top of the water-blocking frame 3... The wall has multiple elongated grooves 312, each corresponding to a receiving groove 311, and the elongated grooves 312 are connected to the corresponding receiving grooves 311. The opening direction of the elongated grooves 312 is parallel to the sliding direction of the insertion block 35 in the corresponding receiving groove 311. The push block 351 is fixedly mounted on the insertion block 35 and slidably mounted in the corresponding elongated groove 312. The side wall of the pressure strip 34 has insertion grooves 341 for each insertion block 35 to be inserted.
[0039] Reference Figure 6 The fixing member 352 includes a first screw. The push block 351 has a first through hole that penetrates the insertion block 35. The bottom wall of the receiving groove 311 has a first threaded hole that matches the first screw. When the insertion block 35 is fully inserted into the insertion groove 341 on the pressure strip 34, the first through hole on the push block 351 is aligned with the first threaded hole on the side wall of the receiving groove 311. At this time, the first screw is inserted into the first through hole and threaded into the first threaded hole to limit the insertion block 35 and fix the pressure strip 34.
[0040] Reference Figure 6 Each receiving groove 311 is provided with an elastic element 36 for driving the plug-in block 35 to slide towards the pressure bar 34. The elastic element 36 includes a compression spring. One end of the compression spring abuts against the bottom wall of the receiving groove 311, and the other end of the compression spring abuts against the plug-in block 35. When the plug-in block 35 is aligned with the plug-in groove 341 on the pressure bar 34, the plug-in block 35 can be inserted into the plug-in groove 341 on the pressure bar 34 under the elastic force of the compression spring, making the installation more convenient.
[0041] Reference Figure 4 , 5A grout guide pipe 37 is provided in the installation groove 31 along the length of the water-blocking frame strip 3. The grout guide pipe 37 is located between the elastic sealing strip 32 and the bottom wall of the installation groove 31. A grout injection pipe 371 is fixedly installed in the installation groove 31. The grout injection pipe 371 is connected to the grout guide pipe 37 and passes through the pressure strip 34. The grout guide pipe 37 is also connected to multiple grout outlet pipes 372. Each grout outlet pipe 372 is distributed along the length of the grout guide pipe 37 and passes through the water-blocking frame strip 3 and extends to the bottom of the water-blocking frame strip 3. After the elastic sealing strip 32 seals the gap between the base plate 1 and the bathroom wall, cement mortar is injected into the grout injection pipe 371. The cement mortar enters the grout guide pipe 37 and then flows out through each grout outlet pipe 372 to fill the gap between the ground and the water-blocking frame strip 3, thereby increasing the sealing performance at the corner of the bathroom floor and the wall.
[0042] Reference Figure 5 , 6 A cover plate 38 is fixedly installed on the top of the water-blocking frame 3. The cover plate 38 is made of aluminum. The cover plate 38 is also provided with second screws for fixing the cover plate 38 to the water-blocking frame 3. There are multiple second screws. The cover plate 38 has multiple second through holes. The top wall of the water-blocking frame 3 has multiple second threaded holes that are compatible with the second screws. The positions of the second through holes on the cover plate 38 correspond one-to-one with the positions of the second threaded holes on the water-blocking frame 3. After the water-blocking frame 3 and the base plate 1 are installed, the cover plate 38 is installed on the top of the water-blocking frame 3 and fixed with the second screws. The cover plate 38 prevents water in the bathroom from entering the installation groove 31, which would cause water to accumulate at the position of the water-blocking frame 3 for a long time and produce odor.
[0043] The implementation principle of a prefabricated quick-installation waterproof floor structure in this application embodiment is as follows: A water-retaining frame strip 3 is installed at the corner between the bathroom floor and the wall. A layer of concrete is applied to the bathroom floor, and then the base plate 1 is laid on the bathroom floor. The base plate 1 is leveled, and the water outlet pipe 12 is connected to the bathroom's drainage pipe. At this time, the water-retaining frame strip 3 is located within the joint between the base plate 1 and the bathroom wall. After the concrete solidifies, the base plate 1 is fixed. Then, by pressing down on the pressure strip 34, the pressure strip 34 squeezes the elastic protrusions 321 on both sides of the elastic sealing strip 32, pushing the two elastic protrusions 321 out from the openings 33 on both sides of the water-retaining frame strip 3, and pressing them against the side wall of the base plate 1 and the bathroom wall respectively. Then, waterproof sealant is applied to the joint between the water-retaining frame strip 3 and the base plate 1, and to the joint between the water-retaining frame strip 3 and the bathroom wall, thereby sealing the gap between the base plate 1 and the wall.
[0044] Finally, a layer of concrete mortar is applied to each placement groove 13 on the base plate 1, and a tile panel 2 is placed in each placement groove 13, thereby laying the tile panel 2 on the base plate 1 and completing the construction of the prefabricated quick-installation waterproof floor; during the use of the bathroom, if the waterproof sealant ages, the water in the bathroom is blocked by the elastic sealing strip 32, effectively preventing water leakage at the corner of the bathroom floor and wall.
[0045] This application also discloses an installation method for a prefabricated quick-installation waterproof floor structure, including the following steps:
[0046] S1. Install the water-blocking frame strip 3 at the corner where the bathroom floor meets the wall;
[0047] S2. Apply a layer of concrete to the bathroom floor, then lay the base plate 1 on the bathroom floor and level the base plate 1. Connect the water outlet pipe 12 to the bathroom drainage pipe and position the water-blocking frame strip 3 in the joint between the base plate 1 and the bathroom wall. After the concrete has solidified, the base plate 1 is fixed.
[0048] S3. By pressing down on the pressure strip 34, the pressure strip 34 squeezes the elastic protrusions 321 on both sides of the elastic sealing strip 32, and pushes the two elastic protrusions 321 out from the openings 33 on both sides of the water-blocking frame strip 3, and presses them against the side wall of the base plate 1 and the bathroom wall respectively.
[0049] S4. Apply waterproof sealant to the joint between the water-blocking frame strip 3 and the base plate 1, as well as the joint between the water-blocking frame strip 3 and the bathroom wall, to seal the gap between the base plate 1 and the wall.
[0050] S5. Apply a layer of concrete mortar to each placement groove 13 on the base plate 1, and place a tile panel 2 in each placement groove 13, thereby laying the tile panel 2 on the base plate 1 to complete the construction of the prefabricated quick-installation waterproof floor.
[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A prefabricated, quick-installation waterproof floor structure, characterized in that: The device includes a base plate (1), a tile panel (2), and a water-blocking frame (3). The base plate (1) is used to lay on the floor of the bathroom. The base plate (1) has a drainage cavity (11) inside. The drainage cavity (11) is connected to a water outlet pipe (12). The water outlet pipe (12) is used to connect to the drainage pipe of the bathroom. The base plate (1) has a water inlet (15) connected to the drainage cavity (11). The tile panel (2) is used to lay on the base plate (1). The water-blocking frame strip (3) is used to be installed at the joint between the base plate (1) and the bathroom wall. The water-blocking frame strip (3) has an installation groove (31) along its length. An elastic sealing strip (32) is provided in the installation groove (31). Both sides of the water-blocking frame strip (3) have openings (33) that communicate with the installation groove (31) along its length. The water-blocking frame strip (3) is provided with a pressing mechanism for pressing the elastic sealing strip (32) out from the openings (33) on both sides of the water-blocking frame strip (3). The extrusion mechanism includes a pressure strip (34) and a limiting component. The pressure strip (34) is slidably disposed in the mounting groove (31) along the length direction of the vertical water-blocking frame (3). The cross-section of the elastic sealing strip (32) is "U" shaped. Both sides of the elastic sealing strip (32) are provided with elastic protrusions (321). The elastic protrusions (321) on the elastic sealing strip (32) pass through the opening (33) on the water-blocking frame (3). The two side walls of the pressure strip (34) gradually approach each other along the direction close to the elastic sealing strip (32), and the bottom of the pressure strip (34) passes between the two elastic protrusions (321) on the elastic sealing strip (32). The limiting component is used to prevent the pressure strip (34) from sliding.
2. The prefabricated quick-installation waterproof floor structure according to claim 1, characterized in that: The top wall of the base plate (1) is provided with a plurality of placement slots (13), and each placement slot (13) is arranged in a matrix on the top wall of the base plate (1), and the placement slots (13) are adapted to the ceramic tile panel (2).
3. The prefabricated quick-installation waterproof floor structure according to claim 2, characterized in that: A drainage ditch (14) is provided on the base plate (1) and between two adjacent placement slots (13), and the water inlet (15) is connected to the drainage ditch (14).
4. The prefabricated quick-installation waterproof floor structure according to claim 3, characterized in that: A grating plate (16) is fixedly installed on the base plate (1) at the slot of the drainage ditch (14).
5. The prefabricated quick-installation waterproof floor structure according to claim 1, characterized in that: The limiting component includes a plug-in block (35), a lever (351), and a fixing member (352). The side wall of the mounting groove (31) is provided with a receiving groove (311) communicating with the mounting groove (31). The plug-in block (35) is slidably disposed in the receiving groove (311). The top wall of the water-blocking frame strip (3) is provided with a long strip groove (312) communicating with the receiving groove (311) along the sliding direction of the plug-in block (35). The lever (351) is slidably disposed in the long strip groove (312) and fixedly connected to the plug-in block (35). The side wall of the pressure strip (34) is provided with a plug-in groove (341) for the plug-in block (35) to be inserted. The fixing member (352) is used to prevent the plug-in block (35) from sliding.
6. The prefabricated quick-installation waterproof floor structure according to claim 5, characterized in that: The receiving groove (311) is provided with an elastic element (36) for driving the plug block (35) to slide towards the pressure strip (34).
7. The prefabricated quick-installation waterproof floor structure according to claim 1, characterized in that: A grouting pipe (371) is fixedly installed in the installation groove (31). A grout guide pipe (37) is installed in the installation groove (31) along the length direction of the water-blocking frame (3). The grouting pipe (371) is connected to the grout guide pipe (37). The grout guide pipe (37) is connected to a plurality of grout outlet pipes (372). Each grout outlet pipe (372) is distributed along the length direction of the grout guide pipe (37), and the grout outlet pipe (372) penetrates the water-blocking frame (3) and extends to the bottom of the water-blocking frame (3).
8. An installation method for a prefabricated quick-installation waterproof floor structure according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Install the water-blocking frame strip (3) at the corner between the bathroom floor and the wall; S2. Apply a layer of concrete to the bathroom floor, then lay the base plate (1) on the bathroom floor, level the base plate (1), connect the water outlet pipe (12) to the bathroom drainage pipe, and make the water-blocking frame strip (3) located in the joint between the base plate (1) and the bathroom wall. After the concrete solidifies, the base plate (1) is fixed. S3. The elastic sealing strip (32) is squeezed by the extrusion mechanism, and the elastic sealing strip (32) is squeezed out from the openings (33) on both sides of the water-blocking frame strip (3), and pressed against the side wall of the base plate (1) and the bathroom wall respectively. S4. Apply waterproof sealant to the joint between the water-blocking frame strip (3) and the base plate (1), as well as the joint between the water-blocking frame strip (3) and the bathroom wall, so as to seal the gap between the base plate (1) and the wall. S5. Use concrete to lay the tile panel (2) on the base plate (1) to complete the construction of the prefabricated quick-installation waterproof floor.