Anti-leakage squatting pan-to-pedestal pan structure and construction method thereof

Abstract

The invention provides an anti-leakage squatting pan-to-pedestal pan structure and a construction method thereof, relates to the technical field of anti-leakage, and realizes double-layer drainage in the structure through the arrangement of a layered drainage floor drain. The accumulated water funnel and the floor drain funnel form an inner-outer double-layer nested structure, and the floor drain funnel serves as an upper drainage channel and is used for draining accumulated water on the surface of the decorative surface layer; the water accumulation funnel serves as a lower drainage channel and is used for collecting leakage water infiltrated from the leveling layer. The outer diameter of the water outlet end of the floor drain funnel is smaller than the inner diameter of the water accumulation funnel connecting pipe, and an annular gap is formed between the floor drain funnel and the water accumulation funnel connecting pipe. Even if the upper-layer floor drain funnel is blocked by sundries, lower-layer seeping water can still be discharged through the annular gap, and the problem of internal water accumulation caused by blockage is avoided.

Description

Technical Field

[0001] This invention relates to the field of anti-leakage technology, specifically to an anti-leakage squat toilet to sit-down toilet structure and its construction method. Background Technology

[0002] With changes in household population structure and improved living standards, more and more families are renovating their bathrooms, replacing their original squat toilets with seated toilets. Seated toilets, due to their ergonomic design, reduce leg strain during toilet use, making them particularly suitable for families with elderly members, people with knee problems, or those with mobility issues. Therefore, replacing squat toilets with seated toilets has become a common home renovation need.

[0003] The existing method for converting squat toilets to sit-down toilets typically involves: breaking the original squat toilet and surrounding tiles, retaining the existing sewage pipes, re-laying the pipes in the installation trench, backfilling and leveling, and finally laying tiles and installing the sit-down toilet. However, this method has a significant drawback: water easily accumulates inside the structural layer after the conversion. Because the gaps between the toilet base and the tiles, between the tiles and the mortar layer, and between the pipes and the structural layer are difficult to completely seal after the toilet is installed, daily cleaning water or water from the bathroom floor can seep into the mortar layer below through these gaps. This seeping water accumulates inside the structural layer and cannot drain in time, leading to stagnant water. As the water accumulates, it eventually seeps downwards through cracks in the floor slab or weak points in the structure, causing problems such as leaks, mold, and peeling paint on the ceilings of downstairs residents, leading to neighborhood disputes and economic losses from repeated repairs.

[0004] Therefore, a leak-proof squat toilet to sit-down toilet conversion structure and its construction method are provided. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides the following technical solution: a leak-proof squat toilet to sit-down toilet structure, comprising: the original squat toilet bowl and a sit-down toilet, including: An installation slot is created at the original location of the squat toilet; A piping system installed in the installation trench and connected to the original sewage pipe; And from bottom to top, the bottom pad, waterproof layer, leveling layer and decorative surface layer are laid in the installation groove; The piping system includes tiered drainage floor drains, which have independent upper and lower drainage channels. The upper drainage channel is connected to the surface of the decorative layer to drain surface water; the lower drainage channel is connected to the drain outlet of the waterproof layer to collect and drain seepage water from the leveling layer.

[0006] Furthermore, tiered drainage floor drains include: A water-collecting funnel, comprising a funnel portion and a connecting pipe located at its bottom, the connecting pipe being sealed to a downstream pipe of the piping system, the upper surface edge of the funnel portion being flush with or below the waterproof layer. A floor drain funnel is nested inside a water collection funnel. Its outlet end extends into the connecting pipe of the water collection funnel, and the outer diameter of the outlet end is smaller than the inner diameter of the connecting pipe, forming an annular drainage gap between the two. The lower drainage channel is formed between the funnel of the water accumulation funnel and the funnel of the floor drain funnel, while the upper drainage channel is formed inside the floor drain funnel.

[0007] Furthermore, the water collection funnel is equipped with a support frame, the top of which supports the floor drain funnel, and the middle of the support frame has a through hole for the outlet end of the floor drain funnel to pass through; the support frame is a hollow mesh structure, used to filter solid particles that seep into the leveling layer and prevent them from entering the lower drainage channel.

[0008] Furthermore, the inner surface of the water accumulator funnel matches the outer surface of the floor drain funnel ...

[0009] Furthermore, the piping system also includes: The first port of the three-way pipe is connected to the sewage pipe of the original squat toilet. The sewage branch is sealed to the second port of the tee pipe and is used to connect to the toilet. The drainage branch is sealed to the third port of the tee pipe, and the tiered drainage floor drain is located at the end of the drainage branch.

[0010] Furthermore, the sewage branch includes a sewage bend and a sewage straight pipe connected in sequence with a seal; the drainage branch includes a floor drain straight pipe and a floor drain bend connected in sequence with a seal.

[0011] Furthermore, the waterproof layer is sloped from all sides of the installation groove toward the tiered drainage floor drain, forming a drainage slope.

[0012] Furthermore, the bottom layer includes a cement slurry layer, a crushed stone layer, and a concrete layer arranged sequentially from bottom to top; the leveling layer is a mortar layer; and the decorative surface layer is ceramic tile.

[0013] A method for constructing a leak-proof squat toilet to sit-down toilet conversion structure, applicable to a leak-proof squat toilet to sit-down toilet conversion structure, includes the following steps: S1. Demolition: Break the original squat toilet and surrounding decorative surface to create an installation groove and expose the original sewage pipe; S2. Base cleaning: Clean debris from the installation groove; S3. Piping system installation: Install the pre-assembled piping system into the installation trench and connect it to the original sewage pipe; S4. Bottom layer construction: The bottom layer is constructed sequentially from bottom to top within the installation groove; S5. Waterproofing layer construction: A waterproofing layer is formed on the surface of the bottom bedding layer. During construction, the floor drain funnel is temporarily placed on the water accumulation funnel, and the outer wall of the floor drain funnel is used to position and finish the waterproofing layer. S6. Construction of the first leveling layer: The first leveling layer is constructed on the waterproof layer, and the upper edge of the temporarily placed floor drain funnel is used as the elevation reference to make the upper surface of the first leveling layer flush with the floor drain funnel. S7. Installation of support frame and floor drain: Take out the temporarily placed floor drain funnel, place the support frame inside the water funnel, and then install the floor drain funnel on the support frame. S8. Construction of the second leveling layer and decorative surface layer: Continue construction of the second leveling layer to the designed thickness, and then lay the decorative surface layer on it; S9. Sanitary ware installation: Install the toilet on the decorative surface and seal its drain pipe to the drain branch of the piping system. S10, Drain finishing: Install the drain mesh plate on top of the drain hopper.

[0014] Furthermore, in step S3, the pre-assembly of the piping system includes: sealing and connecting the tee pipe, drain bend, drain straight pipe, floor drain straight pipe, floor drain bend and tiered drainage floor drain; applying sealant to each connection and then drying it; then conducting a sealing test on the assembled piping system; and installing it only after the test is passed.

[0015] Beneficial effects The present invention has the following beneficial effects: (1) This invention achieves double-layer drainage within the structure through the design of layered drainage floor drains. The water collection funnel and the floor drain funnel form an inner and outer nested structure. The floor drain funnel serves as the upper drainage channel, used to drain water accumulated on the surface of the decorative layer; the water collection funnel serves as the lower drainage channel, used to collect seepage water from the leveling layer. The outer diameter of the outlet end of the floor drain funnel is smaller than the inner diameter of the connecting pipe of the water collection funnel, forming an annular gap between them, making the two drainage paths independent of each other. Even if the upper floor drain funnel is blocked by debris, the seepage water from the lower layer can still be discharged through the annular gap, avoiding internal water accumulation problems caused by blockage.

[0016] (2) This invention achieves the collection and discharge of leaked water by setting the upper surface edge of the funnel part of the water collection funnel to be flush with or lower than the waterproof layer. Since the upper surface edge of the funnel part of the water collection funnel is flush with or lower than the waterproof layer, when water on the waterproof layer flows to the edge, it falls directly into the water collection funnel, preventing water accumulation at the interface or seepage into the underlying structural layer. This design makes the water collection funnel the collection point and discharge outlet for all leaked water below the waterproof layer, effectively preventing water accumulation inside the structural layer.

[0017] (3) In this invention, the waterproof layer is inclined from all sides toward the water collection funnel, forming a complete drainage path. The waterproof layer is inclined from all sides of the installation groove toward the water collection funnel, forming a drainage slope. When water seeps into the waterproof layer, it is intercepted by the waterproof layer and flows along the inclined surface to the lowest point, collecting in the funnel part of the water collection funnel, and is discharged into the drainage pipe through the connecting pipe. The waterproof layer, as a water-proof layer, intercepts the seepage water on the upper layer of the structure, its inclined surface transports the seepage water to the water collection funnel, and the water collection funnel guides the seepage water into the drainage pipe. The three work together to solve the problem of water accumulation between layers.

[0018] (4) This invention achieves precise positioning during construction through the cooperative structure of the support frame and the drain funnel. During the construction of the waterproof layer, the drain funnel is temporarily placed on the water collection funnel, and the outer wall of the drain funnel is used to position and finish the waterproof layer. When laying the first leveling layer, the upper edge of the temporarily placed drain funnel is used as the elevation reference to make the upper surface of the first leveling layer flush with the drain funnel. After the first leveling layer is laid, the temporarily placed drain funnel is removed, the support frame is permanently installed in the water collection funnel, and then the drain funnel is reinstalled on the support frame. This construction method of using the drain funnel for two positioning operations ensures the slope accuracy of the waterproof layer and the flatness of the leveling layer.

[0019] (5) This invention achieves the dual functions of filtering sand and gravel and supporting the floor drain by setting the support frame as a hollow mesh structure. The support frame is installed inside the funnel of the water collection funnel. Its hollow mesh structure can filter sand and gravel particles that seep into the leveling layer, preventing sand and gravel from entering the drainage pipe and causing blockage. At the same time, it avoids sand and gravel loss that could cause cavities in the leveling layer. The support frame provides a stable mounting base for the floor drain funnel, ensuring that the floor drain funnel does not shift or settle during use and maintains a nested fit with the water collection funnel. The lower part of the support frame is wrapped and fixed by the leveling layer, further enhancing stability.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] Figure 1 This is an isometric view of the original squat toilet of the present invention.

[0022] Figure 2 This is an isometric view of the mounting groove of the present invention.

[0023] Figure 3 This is an isometric view of the piping system of the present invention.

[0024] Figure 4 This is a schematic diagram of the installation of the pipeline system of the present invention.

[0025] Figure 5 Cross-sectional view of the entire invention Figure 1 .

[0026] Figure 6 Cross-sectional view of the entire invention Figure 2 .

[0027] Figure 7 This is an isometric view of the toilet seat of the present invention.

[0028] Figure 8 This is an exploded view of the layered drainage floor drain of the present invention.

[0029] In the diagram: 1. Original squat toilet; 2. Installation groove; 3. Piping system; 31. T-pipe; 32. Sewage bend; 33. Sewage straight pipe; 34. Floor drain straight pipe; 35. Floor drain bend; 36. Layered drainage floor drain; 361. Water sump funnel; 362. Support frame; 363. Floor drain funnel; 364. Floor drain mesh; 4. Cement slurry layer; 5. Crushed stone layer; 6. Concrete layer; 7. Waterproof layer; 8. Leveling layer; 9. Decorative surface layer; 10. Toilet seat. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 8 The present invention provides a technical solution: a leak-proof squat toilet to sit-down toilet structure, including: the original squat toilet 1 and the sit-down toilet 10, an installation groove 2 is opened at the installation position of the original squat toilet 1, and a pipe system 3 connected to the original sewage pipe is installed in the installation groove 2; the interior of the installation groove 2 is provided with a bottom pad layer, a waterproof layer 7, a leveling layer 8 and a decorative surface layer 9 from bottom to top, and the sit-down toilet 10 is installed on the decorative surface layer 9.

[0032] In practice, a mounting groove 2 is first created at the original installation location of the squat toilet 1. The size of the mounting groove 2 should be larger than the mounting base of the toilet 10 to provide operating space for the subsequent laying of structural layers. A piping system 3 is installed in the mounting groove 2. This piping system 3 is used to connect the original sewage pipe to the newly added toilet 10 and the tiered drainage floor drain 36.

[0033] like Figure 3 , Figure 4As shown, in one specific embodiment of the present invention, the piping system 3 includes a tee pipe 31, the first port of which is connected to the sewage pipe of the original squat toilet 1; a sewage branch, sealed to the second port of the tee pipe 31, for connecting to the toilet 10; and a drainage branch, sealed to the third port of the tee pipe 31, with a layered drainage floor drain 36 located at the end of the drainage branch. Specifically, the sewage branch includes a sewage bend 32 and a sewage straight pipe 33 connected in sequence and sealed; the drainage branch includes a floor drain straight pipe 34, a floor drain bend 35, and another floor drain straight pipe 34 connected in sequence and sealed. All connections between pipe fittings are coated with sealant and sealed to ensure that the entire piping system is leak-free.

[0034] Through the above connection method, the piping system 3 realizes two independent drainage channels: one is the sewage discharge channel of the toilet 10 (via the second port of the tee pipe 31, the sewage bend 32, and the sewage straight pipe 33), and the other is the drainage channel for floor water accumulation and inter-floor leakage (via the third port of the tee pipe 31, the floor drain straight pipe 34, the floor drain bend 35, and the tiered drainage floor drain 36). This structural design avoids the odor backflow problem that may be caused by directly connecting the floor drain to the toilet sewage pipe, while ensuring that the two drainage systems do not interfere with each other.

[0035] like Figure 8 As shown, the core innovation of this invention is that the layered drainage floor drain 36 has an independent upper drainage channel and a lower drainage channel. Specifically, the layered drainage floor drain 36 includes: a water collection funnel 361 and a floor drain funnel 363 nested within the water collection funnel 361.

[0036] The water collection funnel 361 includes a funnel section and a connecting pipe located at its bottom, which is sealed to the downstream pipe of the piping system 3 (i.e., the floor drain straight pipe 34). The water collection funnel 361 is installed at the lowest point of the entire drainage system, with its funnel section opening upwards to collect water seeping down from the upper structure. The connecting pipe extends downwards and connects to the floor drain straight pipe 34, guiding the collected water into the piping system 3 and ultimately into the sewage system.

[0037] A floor drain funnel 363 is nested within a water collection funnel 361, with its outlet extending into the connecting pipe of the water collection funnel 361. The outer diameter of the outlet is smaller than the inner diameter of the connecting pipe, forming an annular drainage gap between them. A floor drain mesh plate 364 is provided on the top of the floor drain funnel 363. A lower drainage channel is formed between the funnel portion of the water collection funnel 361 and the funnel portion of the floor drain funnel 363, used to collect and drain seepage water from the leveling layer 8; an upper drainage channel is formed inside the floor drain funnel 363, communicating with the surface of the decorative surface layer 9, used to drain surface water.

[0038] The upper edge of the funnel portion of the water collection funnel 361 is flush with or lower than the waterproof layer 7. This design allows water flowing from the waterproof layer 7 to the edge to fall directly into the water collection funnel 361, preventing water accumulation at the interface or seepage into the underlying structural layer. This structural design makes the water collection funnel 361 the sole collection point and outlet for all leaks below the waterproof layer 7, effectively preventing water accumulation inside the structural layer.

[0039] Furthermore, a support frame 362 is provided inside the water collection funnel 361. The top of the support frame 362 supports the floor drain funnel 363, and a through hole is provided in the middle of the support frame 362 for the outlet end of the floor drain funnel 363 to pass through. The support frame 362 has a hollow mesh frame structure and is installed inside the funnel part of the water collection funnel 361. The lower part of the support frame 362 contacts the interior of the water collection funnel 361, and the upper part is used to support the floor drain funnel 363.

[0040] The perforated mesh structure of the support frame 362 has two functions: first, a filtering function. When sand and gravel particles are generated in the leveling layer 8 due to shrinkage or vibration, these particles will be intercepted by the mesh structure of the support frame 362 during the seepage process, preventing them from entering the connecting pipe of the water collection funnel 361, thus avoiding blockage of the drainage pipe and preventing cavities caused by sand and gravel loss; second, a supporting function. The support frame 362 provides a stable mounting base for the floor drain funnel 363, ensuring that the floor drain funnel 363 will not shift or settle during use, maintaining its nested fit with the water collection funnel 361.

[0041] During installation, the support frame 362 is placed inside the funnel section of the water collection funnel 361. The outlet end of the floor drain funnel 363 passes through the through hole of the support frame 362 and extends into the connecting pipe of the water collection funnel 361. Since the outer diameter of the outlet end is smaller than the inner diameter of the connecting pipe, an annular gap is formed between the two. The inner surface of the funnel section of the water collection funnel 361 fits into the outer surface of the funnel section of the floor drain funnel 363, forming a double nested structure.

[0042] This double-layer floor drain structure achieves two levels of drainage function: the upper layer is the daily drainage layer, where water from the decorative surface layer 9 directly enters the floor drain funnel 363 through the floor drain mesh plate 364, and then flows into the connecting pipe of the water collection funnel 361 through the outlet end; the lower layer is the seepage drainage layer, where water seeping from the leveling layer 8 first enters the funnel part of the water collection funnel 361, and then flows into the drainage pipe through the annular gap between the outlet end of the floor drain funnel 363 and the connecting pipe. The two drainage paths do not interfere with each other. Even if the upper floor drain funnel 363 is blocked by debris, the seepage water in the lower layer can still be discharged through the annular gap, avoiding water accumulation problems caused by blockage.

[0043] Furthermore, the funnel part of the floor drain 363 is fixedly connected to the leveling layer 8, and the lower part of the support frame 362 is wrapped and fixed by the leveling layer 8, further enhancing the stability of the overall structure.

[0044] like Figure 5 , Figure 6 As shown, in a specific embodiment of the present invention, the bottom layer includes a cement slurry layer 4, a crushed stone layer 5, and a concrete layer 6 arranged sequentially from bottom to top; the leveling layer 8 is a mortar layer; and the decorative surface layer 9 is ceramic tile. The waterproof layer 7 is inclined from the periphery of the installation groove 2 toward the layered drainage drain 36, forming a drainage slope.

[0045] In practice, the waterproof layer 7 is made of waterproof coating or waterproof mortar, and its surface is smooth, continuous, and seamless. When water seeps into the gaps in the leveling layer 8 or decorative surface layer 9 and reaches the waterproof layer 7, the water cannot continue to penetrate downwards because the waterproof layer 7 itself has waterproof properties. Under the action of gravity, the seeping water flows along the inclined surface of the waterproof layer 7 towards the lowest point, and finally collects in the funnel part of the water collection funnel 361, and is discharged into the drainage pipe through the connecting pipe.

[0046] The slope design of waterproof layer 7, together with the water collection funnel 361, forms a complete drainage path: waterproof layer 7 acts as a waterproof barrier, intercepting seepage at the upper layer of the structure; its sloping surface acts as a guide surface, directing the seepage to the water collection funnel 361; and the water collection funnel 361, as a collection port, guides the seepage into the drainage pipe. This structural combination effectively solves the common problem of interlayer water accumulation during the conversion of squat toilets to seated toilets, avoiding common quality problems such as mold growth on walls and structural leakage caused by long-term water retention.

[0047] A method for constructing a leak-proof squat toilet to sit-down toilet conversion structure, applicable to the aforementioned leak-proof squat toilet to sit-down toilet conversion structure, includes the following steps: S1. Demolition: Break the original squat toilet 1 and the decorative surface layer 9 around the original squat toilet 1 to form the installation groove 2 and expose the original sewage pipe.

[0048] In practice, tools such as electric hammers are used to break the original squat toilet 1 and the decorative surface layer 9 around the original squat toilet 1 to form the installation groove 2. During the cleaning process, care should be taken to protect the original sewage pipe so that it is completely exposed and avoids damage.

[0049] S2. Base cleaning: Clean up the debris and foreign objects in the installation groove 2 and keep the groove clean.

[0050] During implementation, thoroughly clean the debris, dust, and other contaminants from the installation groove 2. If necessary, use a high-pressure air gun to blow it clean to ensure that there are no loose particles on the base surface, thus providing a clean working surface for subsequent pipe installation and structural layer construction.

[0051] S3. Piping system installation: Install the pre-assembled piping system 3 into the installation trench 2 and connect it to the original sewage pipe.

[0052] In specific implementation, the pre-assembly of the pipeline system 3 includes: sequentially sealing and connecting the tee pipe 31, the sewage bend pipe 32, the sewage straight pipe 33, the floor drain straight pipe 34, the floor drain bend pipe 35, and the tiered drainage floor drain 36. During assembly, sealant is applied to each connection point, the pipeline system 3 is dried, and then the pipeline system 3 is tested for sealing. The tested pipeline system 3 is then installed onto the original sewage pipe, with the first port of the tee pipe 31 connected to and sealed with the sewage pipe.

[0053] The specific method for sealing testing is as follows: Temporarily seal the first port of the tee pipe 31 and the outlet of the drain straight pipe 33. Inject gas or liquid into the pipe system 3 through the third port of the tee pipe 31 to test for leaks at each connection. Use a special plug to temporarily seal the first port of the tee pipe 31 (i.e., the port connected to the original drain pipe) and the outlet of the drain straight pipe 33 (i.e., the port connected to the toilet 10). Then, inject compressed air or pressurized water into the pipe system 3 through the third port of the tee pipe 31 (i.e., the port connected to the tiered drain floor drain 36) to bring the pipe to the set test pressure (e.g., 0.4-0.6 MPa). After pressurization, maintain the pressure and check each connection using soapy water (for air pressure testing) or visual inspection (for water pressure testing). If leaks are found, mark the leak location, depressurize, re-treat the connection, and then perform the pressure test again until all connections are leak-free. This method of conducting a sealing test before installation avoids the risk of rework when leaks are discovered only after the pipes have been buried in the structural layer.

[0054] S4. Bottom cushion layer construction: The bottom cushion layer is constructed sequentially from bottom to top in the installation groove 2.

[0055] In practice, the bottom layer consists of a cement slurry layer 4, a crushed stone layer 5, and a concrete layer 6. First, a layer of cement slurry is evenly laid at the bottom of the installation groove 2 to form a cement slurry layer 4, which is used to fill uneven areas of the base layer. Then, the crushed fragments produced in step S1 are screened and filled into the installation groove 2, and compacted in layers to form a crushed stone layer 5. Finally, a concrete layer 6 is poured on the surface of the crushed stone layer 5, the surface is smoothed with a trowel, and it is cured after initial setting.

[0056] S5. Waterproof layer construction: Waterproof layer 7 is formed on the surface of the bottom cushion layer. During construction, the floor drain funnel 363 is temporarily placed on the water accumulation funnel 361, and the outer wall of the floor drain funnel 363 is used to position and finish the waterproof layer 7.

[0057] In practice, a waterproof coating or waterproof mortar is applied to the surface of the concrete layer 6 to form a waterproof layer 7. During construction, a drain funnel 363 is temporarily placed on a water collection funnel 361. The outer wall of the drain funnel 363 serves as the positioning edge for applying the waterproof layer 7, ensuring that the waterproof layer 7 is tightly adhered to the outer wall of the drain funnel 363 and forms a drainage slope from all sides towards the temporarily placed drain funnel 363. After the waterproof layer 7 is applied, it is dried using drying equipment to accelerate the curing of the waterproof material.

[0058] S6. Construction of the first leveling layer: The first leveling layer 8 is constructed on the waterproof layer 7, and the upper edge of the temporarily placed floor drain funnel 363 is used as the elevation reference to make the upper surface of the first leveling layer 8 flush with the floor drain funnel 363.

[0059] In practice, a first layer of mortar is laid on the waterproof layer 7 to form the first leveling layer 8. When laying the first layer, the upper edge of the temporarily placed floor drain hopper 363 is used as the elevation reference so that the upper surface of the leveling layer 8 is flush with the floor drain hopper 363, providing a horizontal base for the subsequent installation of the support frame.

[0060] S7. Installation of support frame and floor drain: Take out the temporarily placed floor drain funnel 363, place the support frame 362 into the water funnel 361, and then install the floor drain funnel 363 onto the support frame 362.

[0061] In practice, the temporarily placed floor drain funnel 363 is removed, the support frame 362 is placed inside the funnel part of the water collection funnel 361, and then the floor drain funnel 363 is reinstalled on the support frame 362, so that its outlet end passes through the through hole of the support frame 362 and extends into the connecting pipe of the water collection funnel 361, and the outer wall of the funnel part of the floor drain funnel 363 fits into the inner wall of the funnel part of the water collection funnel 361.

[0062] S8. Construction of the second leveling layer and decorative surface layer: Continue to construct the second leveling layer 8 to the designed thickness, and lay the decorative surface layer 9 on it.

[0063] In practice, mortar is continued to be laid to the designed thickness to form a second leveling layer 8. The funnel part of the drain hopper 363 is fixedly connected to the leveling layer 8, and the lower part of the support frame 362 is wrapped and fixed by the leveling layer 8. Before the leveling layer 8 has fully set, a decorative surface layer 9 (such as ceramic tiles) is laid. The decorative surface layer 9 is laid around the drain hopper 363, ensuring that the drain area is the lowest point, and the upper surface of the decorative surface layer 9 is flush with the drain mesh plate 364.

[0064] S9. Sanitary ware installation: Install the toilet 10 on the decorative surface layer 9 and seal its drain pipe to the drain branch of the piping system 3.

[0065] In practice, the toilet 10 is installed on the decorative surface layer 9, its position is adjusted to make it stable, and then the drain pipe of the toilet 10 is sealed and connected to the drain straight pipe 33. Flange rings and other sealing components are used to ensure that there is no leakage at the interface.

[0066] S10, Drain finishing: Install the drain mesh plate 364 on top of the drain funnel 363.

[0067] In practice, the drain mesh plate 364 is installed on top of the drain funnel 363 to complete the final assembly of the drain.

[0068] Finally, the water system was modified by disconnecting the water supply pipe of the original squat toilet 1 from the original squat toilet 1 and reconnecting it to the water inlet of the toilet 10. The valve was opened to test the water inlet and ensure that the water system was unobstructed and leak-free.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A leak-proof squat toilet to sit-down toilet conversion structure, comprising: The original squat toilet (1) and toilet seat (10) are characterized by comprising: An installation slot (2) is opened at the original squat toilet (1) location; The piping system (3) installed in the installation slot (2) and connected to the original sewage pipe; And from bottom to top, the bottom pad, waterproof layer (7), leveling layer (8) and decorative surface layer (9) are laid in the installation groove (2); The piping system (3) includes a layered drainage floor drain (36), which has an upper drainage channel and a lower drainage channel that are independent of each other. The upper drainage channel is connected to the surface of the decorative surface layer (9) and is used to drain surface water. The lower drainage channel is connected to the drain outlet of the waterproof layer (7) and is used to collect and drain the seepage water that seeps from the leveling layer (8).

2. The anti-leakage squat toilet to sit-down toilet structure according to claim 1, characterized in that: The tiered drainage floor drain (36) includes: Water accumulating funnel (361), the water accumulating funnel (361) includes a funnel part and a connecting pipe located at its bottom, the connecting pipe being sealed to the downstream pipe of the pipeline system (3), the upper surface edge of the funnel part being flush with or lower than the waterproof layer (7). A floor drain funnel (363) is nested inside a water collection funnel (361). Its outlet end extends into the connecting pipe of the water collection funnel (361), and the outer diameter of the outlet end is smaller than the inner diameter of the connecting pipe, forming an annular drainage gap between the two. The lower drainage channel is formed between the funnel part of the water accumulator funnel (361) and the funnel part of the floor drain funnel (363), and the upper drainage channel is formed inside the floor drain funnel (363).

3. The anti-leakage squat toilet to sit-down toilet structure according to claim 2, characterized in that: The water hopper (361) is provided with a support frame (362), the top of the support frame (362) supports the floor drain hopper (363), and the middle of the support frame (362) is provided with a through hole for the water outlet of the floor drain hopper (363) to pass through; the support frame (362) is a hollow mesh frame structure, used to filter solid particles that seep into the leveling layer (8) and prevent them from entering the lower drainage channel.

4. The anti-leakage squat toilet to sit-down toilet structure according to claim 3, characterized in that: The inner surface of the funnel part of the water accumulator (361) fits with the outer surface of the funnel part of the floor drain (363), and the funnel part of the floor drain (363) is fixedly connected to the leveling layer (8); the lower part of the support frame (362) is wrapped and fixed by the leveling layer (8).

5. The anti-leakage squat toilet to sit-down toilet structure according to claim 1, characterized in that: The pipeline system (3) also includes: The first port of the three-way pipe (31) is connected to the sewage pipe of the original squat toilet (1); The sewage branch is sealed to the second port of the tee pipe (31) for connecting to the toilet (10). The drainage branch is sealed to the third port of the tee pipe (31), and the layered drainage floor drain (36) is located at the end of the drainage branch.

6. The anti-leakage squat toilet to sit-down toilet structure according to claim 5, characterized in that: The sewage branch includes a sewage bend (32) and a sewage straight pipe (33) connected in sequence and sealed together; the drainage branch includes a floor drain straight pipe (34) and a floor drain bend (35) connected in sequence and sealed together.

7. The anti-leakage squat toilet to sit-down toilet structure according to claim 1, characterized in that: The waterproof layer (7) is inclined from the periphery of the installation groove (2) toward the layered drainage drain (36) to form a drainage slope.

8. The anti-leakage squat toilet to sit-down toilet structure according to claim 1, characterized in that: The bottom layer includes a cement slurry layer (4), a crushed stone layer (5), and a concrete layer (6) arranged sequentially from bottom to top; the leveling layer (8) is a mortar layer; and the decorative surface layer (9) is a ceramic tile.

9. A method for constructing a leak-proof squat toilet to sit-down toilet conversion structure, applied to the leak-proof squat toilet to sit-down toilet conversion structure described in any one of claims 1 to 8, characterized in that: Includes the following steps: S1. Demolition: Break the original squat toilet (1) and the surrounding decorative surface layer (9) to form an installation groove (2) and expose the original sewage pipe; S2. Base cleaning: Clean the debris in the installation groove (2); S3. Piping system installation: Install the pre-assembled piping system (3) into the installation groove (2) and connect it to the original sewage pipe; S4. Bottom cushion layer construction: The bottom cushion layer is constructed from bottom to top in the installation groove (2); S5. Waterproof layer construction: A waterproof layer (7) is formed on the surface of the bottom cushion layer. During construction, the floor drain funnel (363) is temporarily placed on the water accumulation funnel (361), and the outer wall of the floor drain funnel (363) is used to position and finish the waterproof layer (7). S6. Construction of the first leveling layer: The first leveling layer (8) is constructed on the waterproof layer (7), and the upper edge of the temporarily placed floor drain funnel (363) is used as the elevation reference to make the upper surface of the first leveling layer (8) flush with the floor drain funnel (363). S7. Installation of support frame and floor drain: Take out the temporarily placed floor drain funnel (363), place the support frame (362) into the water funnel (361), and then install the floor drain funnel (363) on the support frame (362); S8. Construction of the second leveling layer and decorative surface layer: Continue to construct the second leveling layer (8) to the designed thickness, and lay the decorative surface layer (9) on it. S9. Sanitary ware installation: Install the toilet (10) on the decorative surface layer (9) and seal its drain pipe to the drain branch of the piping system (3); S10, Drain finishing: Install the drain mesh plate (364) on top of the drain funnel (363).

10. A method for constructing a leak-proof squat toilet to sit-down toilet structure according to claim 9, characterized in that: In step S3, the pre-assembly of the piping system (3) includes: sealing and connecting the tee pipe (31), the drain elbow (32), the drain straight pipe (33), the floor drain straight pipe (34), the floor drain elbow (35), and the tiered drainage floor drain (36), applying sealant to each connection and then drying it, and then performing a sealing test on the assembled piping system (3). After passing the test, it is then installed.

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