Sunken toilet waterproof structure

Abstract

The utility model discloses a sunken bathroom waterproof structure, from below to above includes base layer (1) in proper order, bottom layer waterproof system (14), backfill layer (6), backfill protection structure (15), upper layer waterproof system (16), apparent decorative structure (17), the base layer (1), bottom layer waterproof system (14), backfill layer (6), backfill protection structure (15) and apparent decorative structure (17) between upper layer waterproof system (16) and are directly contacted through fixed connection. The utility model can repair the small crack in the floor base layer, increase the strength and compactness of floor, thereby guaranteeing the long -term stable operation of the whole waterproof system behind.

Description

Technical Field

[0001] This utility model relates to the field of general building construction, specifically to a waterproof structure for a sunken bathroom. Background Technology

[0002] Sunken bathrooms, designed to prevent water from flowing out of the bathroom, have become an important renovation method in modern residences. However, preventing leakage remains a pressing issue for current sunken bathroom designs. Existing sunken bathrooms generally do not reinforce the floor slab. If defects or leaks occur in the floor slab, it is difficult to guarantee the long-term stable operation of the entire waterproofing structure. Furthermore, existing waterproofing structures often require lengthy construction times, resulting in long construction periods and low efficiency. Therefore, developing a sunken bathroom waterproofing structure that can operate stably in the long term and has a short construction cycle is crucial.

[0003] Chinese utility model patent CN213572422U discloses a sunken waterproof structure for bathrooms, using expanded clay aggregate as filler. This lightweight aggregate has dense pores on its surface, allowing it to absorb moisture. Its smooth surface prevents damage to pipes, and the double-layer waterproofing enhances the waterproofing effect. However, it does not address repairs to the floor slab, leaving a risk of future leaks. Chinese utility model patent CN212896880U discloses another sunken bathroom waterproof structure. This structure features a first waterproof layer to prevent water that has seeped into the sunken area from further penetrating downwards. Water then flows through a secondary drain pipe into the main drain pipe, allowing for immediate removal of water from the sunken area and preventing long-term accumulation and odor, thus reducing the risk of leakage. However, this method requires a specific construction angle, increasing the difficulty and time required for construction. Utility Model Content

[0004] In order to develop a waterproof structure for sunken bathrooms that can operate stably for a long time and has a short construction period, the first aspect of this utility model provides a waterproof structure for sunken bathrooms, which includes, from bottom to top, a base layer (1), a bottom waterproof system (14), a backfill layer (6), a backfill protection structure (15), an upper waterproof system (16), and an appearance decoration structure (17); the base layer (1), the bottom waterproof system (14), the backfill layer (6), the backfill protection structure (15), the upper waterproof system (16), and the appearance decoration structure (17) are in direct contact through a fixed connection.

[0005] In one embodiment, the bottom waterproof system (14) includes, from bottom to top, a penetrating waterproof layer (2), a quick-setting crack-resistant layer (3), a waterproof slurry layer (4), and a waterproof coating layer (5), and the penetrating waterproof layer (2), the quick-setting crack-resistant layer (3), the waterproof slurry layer (4), and the waterproof coating layer (5) are fixedly connected.

[0006] In one embodiment, the permeable waterproof layer (2) is fixed on the surface of the base layer (1) and is brushed onto the surface of the base layer (1) to penetrate into the base layer (1).

[0007] This invention involves applying a penetrating waterproof layer to the surface of a floor slab base layer, which can repair small cracks in the base layer of the floor slab, increase the strength and density of the floor slab, and thus ensure the long-term stable operation of the entire waterproof system.

[0008] In one embodiment, the fast-hardening crack-resistant layer (3) contains a network overlap structure (18), which contains polypropylene fibers with a length of 3-8 mm.

[0009] The quick-setting crack-resistant mortar of this invention incorporates a network overlap structure formed by randomly overlapping polypropylene fibers, which can increase the elastic modulus of the mortar, reduce the impact of shrinkage stress caused by the deformation of the floor slab base layer, improve the crack resistance of the mortar, and protect the stability of the overall waterproof structure in the later stage.

[0010] In one embodiment, the thickness of the rapid-hardening crack-resistant layer is 5-10 mm;

[0011] In one embodiment, the thickness of the fast-hardening crack-resistant layer is 6 mm.

[0012] In one embodiment, the thickness of the waterproof slurry layer is 1-3 mm;

[0013] In one embodiment, the thickness of the waterproof slurry layer is 1 mm.

[0014] In one embodiment, the thickness of the waterproof coating layer is 0.3-0.8 mm;

[0015] In one embodiment, the thickness of the waterproof coating layer is 0.5 mm.

[0016] In one embodiment, the backfill layer (6) is a foamed structure, and the thickness of the backfill layer (6) is 30-40cm.

[0017] In one embodiment, the backfill protection structure (15) includes a fiber reinforcement layer (7) and a fast-hardening crack-resistant leveling layer (8) from bottom to top. The fiber reinforcement layer (7) is laid on top of the backfill layer (6), and the fast-hardening crack-resistant leveling layer (8) is fixed on top of the hardened fiber reinforcement layer (7).

[0018] In one embodiment, the fiber reinforcement layer (7) is a nonwoven polyester fiber cloth, which is laid in a single layer on the backfill layer (6).

[0019] The backfill layer of this invention is prepared using foamed cement. Before it hardens, a fiber reinforcement layer is laid to form a fiber reinforcement layer to resist cracking of the backfill layer. After the backfill layer and the fiber reinforcement layer have fully hardened, a fast-hardening crack-resistant leveling mortar is used for leveling and reinforcing the base layer, forming a fast-hardening crack-resistant leveling layer. The fiber reinforcement layer and the fast-hardening crack-resistant leveling layer together ensure the stability of the backfill layer, preventing the waterproof coating layer from failing due to cracking of the backfill layer, and ensuring the stability of the waterproof structure on the backfill layer.

[0020] In one embodiment, the thickness of the fast-hardening crack-resistant leveling layer (8) is 1-10 mm.

[0021] In one implementation, the thickness of the fast-hardening crack-resistant leveling layer (8) is 4 mm.

[0022] In one embodiment, the upper waterproofing system (16) includes a waterproof coating layer (9) and a protective mortar layer (10) from bottom to top, and the waterproof coating layer (9) is fixed to the upper surface of the quick-hardening crack-resistant leveling layer (8).

[0023] In one embodiment, the thickness of the waterproof coating layer (9) is 1-5 mm, and the thickness of the protective mortar layer (10) is 5-10 mm.

[0024] In one embodiment, the thickness of the waterproof coating layer (9) is 1.5 mm, and the thickness of the protective mortar layer (10) is 10 mm.

[0025] After the waterproof coating layer is applied, a protective mortar layer is used to level the surface, forming an upper waterproof system to protect the surface of the waterproof coating layer and prevent damage to the surface of the waterproof coating layer caused by subsequent construction, which would affect the overall waterproof structure.

[0026] In one embodiment, the decorative structure (17) includes, from bottom to top, a tile adhesive layer (11), a tile layer (12), and a grout layer (13).

[0027] In one embodiment, the thickness of the tile adhesive layer (11) is ≤8mm.

[0028] In one embodiment, the thickness of the tile adhesive layer (11) is 8 mm.

[0029] After the upper waterproofing system is constructed, tiles are laid to form the surface decorative structure (17). The tiles are first laid and connected using tile adhesive. Grouting is then applied to the tile layer to prevent water leakage.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The sunken bathroom waterproof structure described in this utility model has a penetrating waterproof layer brushed onto the surface of the floor slab base layer, which can repair small cracks in the floor slab base layer, increase the strength and density of the floor slab, and thus ensure the long-term stable operation of the entire waterproof system.

[0032] (2) The sunken bathroom waterproof structure described in this utility model incorporates a network overlap structure formed by randomly overlapping polypropylene fibers in the quick-hardening crack-resistant mortar, which can increase the elastic modulus of the mortar, reduce the impact of shrinkage stress caused by the deformation of the floor base layer, improve the crack resistance of the mortar, and protect the stability of the overall waterproof structure in the later stage.

[0033] (3) The sunken bathroom waterproof structure described in this utility model lays a fiber reinforcement layer before it hardens, forming a fiber reinforcement layer that can resist cracking of the backfill layer.

[0034] (4) The sunken bathroom waterproof structure described in this utility model is leveled with fast-hardening crack-resistant leveling mortar after the backfill layer and fiber reinforcement layer have fully hardened. The fiber reinforcement layer and the fast-hardening crack-resistant leveling layer together ensure the stability of the backfill layer, avoid the failure of the waterproof coating layer due to cracking of the backfill layer, and ensure the stability of the waterproof structure on the backfill layer.

[0035] (5) The sunken bathroom waterproof structure described in this utility model uses a protective mortar layer to level the surface and form an upper waterproof system to protect the surface of the waterproof coating layer and avoid the overall waterproof system being affected by subsequent construction that could damage the surface of the waterproof coating layer. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the sunken bathroom waterproof structure of this utility model;

[0037] Figure 2 This is a plan view of the quick-setting crack-resistant layer in the sunken bathroom waterproof structure of this utility model.

[0038] In the diagram: 1. Base layer; 2. Penetrating waterproof layer; 3. Rapid-hardening crack-resistant layer; 4. Waterproof slurry layer; 5. Waterproof coating layer; 6. Backfill layer; 7. Fiber reinforcement layer; 8. Rapid-hardening crack-resistant leveling layer; 9. Waterproof coating layer; 10. Protective mortar layer; 11. Tile adhesive layer; 12. Tile layer; 13. Grout layer; 14. Sub-layer waterproofing system; 15. Backfill protection structure; 16. Upper-layer waterproofing system; 17. Surface decorative structure; 18. Network overlapping structure. Detailed Implementation

[0039] Example

[0040] A sunken bathroom waterproof structure includes, from bottom to top, a base layer 1, a bottom waterproof system 14, a backfill layer 6, a backfill protection structure 15, an upper waterproof system 16, and an appearance decoration structure 17; the base layer (1), the bottom waterproof system 14, the backfill layer 6, the backfill protection structure 15, the upper waterproof system 16, and the appearance decoration structure 17 are in direct contact through a fixed connection.

[0041] The bottom waterproofing system 14 includes, from bottom to top, a penetrating waterproof layer 2, a quick-setting crack-resistant layer 3, a waterproof slurry layer 4, and a waterproof coating layer 5, which are fixedly connected.

[0042] The penetrating waterproof layer 2 is fixed to the surface of the base layer 1, and the penetrating waterproof layer 2 is brushed onto the surface of the base layer 1 and penetrates into the base layer 1.

[0043] The fast-hardening crack-resistant layer 3 contains a network overlap structure 18, which contains polypropylene fibers with a length of 6 mm.

[0044] The thickness of the rapid-hardening crack-resistant layer is 6 mm. The thickness of the waterproof slurry layer is 1 mm. The thickness of the waterproof coating layer is 0.5 mm.

[0045] A penetrating waterproof layer 2 is brushed onto the surface of the floor slab base layer 1. After drying, a rapid-hardening crack-resistant layer 3 is applied, which incorporates a network overlap structure 18 formed by randomly overlapping polypropylene fibers. 45 minutes after the rapid-hardening crack-resistant layer 3 is applied, a waterproof slurry layer 4 is applied, and after drying, a waterproof coating layer 5 is applied, forming a protective base waterproof system 14. After the waterproof coating layer 5 dries, foamed cement is used for backfilling, forming a backfill layer 6.

[0046] The backfill layer 6 has a foamed structure and a thickness of 30-40cm.

[0047] The backfill protection structure 15 includes, from bottom to top, a fiber-reinforced layer 7 and a fast-hardening crack-resistant leveling layer 8. The fiber-reinforced layer 7 is laid on top of the backfill layer 6, and the fast-hardening crack-resistant leveling layer 8 is fixed on top of the hardened fiber-reinforced layer 7.

[0048] The fiber reinforcement layer 7 is a nonwoven polyester fiber cloth, which is laid as a single layer on the backfill layer 6.

[0049] The thickness of the fast-hardening crack-resistant leveling layer 8 is 4mm.

[0050] Before the backfill layer 6 hardens, the fiber-reinforced layer 7 is laid. After the backfill layer 6 and the fiber-reinforced layer 7 have fully hardened, the rapid-hardening crack-resistant leveling mortar is used for leveling to obtain the rapid-hardening crack-resistant leveling layer 8.

[0051] The upper waterproofing system 16 comprises, from bottom to top, a waterproof coating layer 9 and a protective mortar layer 10. The waterproof coating layer 9 is brushed onto the upper surface of the quick-setting and crack-resistant leveling layer 8. After the waterproof coating layer 9 is applied, the surface is leveled with plaster mortar to form the protective mortar layer 10, thus completing the upper waterproofing system 16.

[0052] The thickness of the waterproof coating layer 9 is 1.5 mm, and the thickness of the protective mortar layer 10 is 10 mm.

[0053] The decorative structure 17 includes, from bottom to top, a tile adhesive layer 11, a tile layer 12, and a grout layer 13.

[0054] The thickness of the tile adhesive layer 11 is 8mm.

[0055] After the upper waterproofing system 16 is constructed, tiles are laid to form the surface decorative structure 17. The tiles are first laid and connected using a tile adhesive layer 11. Grouting is then applied to the tile layer 12 to obtain the grout layer 13.

Claims

1. A waterproof structure for a sunken bathroom, characterized in that, From bottom to top, the structure includes a base layer (1), a bottom waterproofing system (14), a backfill layer (6), a backfill protection structure (15), an upper waterproofing system (16), and an appearance decoration structure (17). The base layer (1), the bottom waterproofing system (14), the backfill layer (6), the backfill protection structure (15), the upper waterproofing system (16), and the appearance decoration structure (17) are in direct contact through a fixed connection.

2. The sunken bathroom waterproof structure according to claim 1, characterized in that, The bottom waterproof system (14) includes, from bottom to top, a penetrating waterproof layer (2), a quick-hardening crack-resistant layer (3), a waterproof slurry layer (4), and a waterproof coating layer (5). The penetrating waterproof layer (2), the quick-hardening crack-resistant layer (3), the waterproof slurry layer (4), and the waterproof coating layer (5) are fixedly connected.

3. The sunken bathroom waterproof structure according to claim 2, characterized in that, The permeable waterproof layer (2) is fixed on the surface of the base layer (1) and is brushed onto the surface of the base layer (1) to penetrate into the base layer (1).

4. The sunken bathroom waterproof structure according to claim 2, characterized in that, The fast-hardening crack-resistant layer (3) contains a network overlap structure (18), which contains polypropylene fibers with a length of 3-8 mm.

5. The sunken bathroom waterproof structure according to claim 1, characterized in that, The backfill layer (6) is a foamed structure, and the thickness of the backfill layer (6) is 30-40cm.

6. The sunken bathroom waterproof structure according to claim 1, characterized in that, The backfill protection structure (15) includes a fiber reinforcement layer (7) and a fast-hardening crack-resistant leveling layer (8) from bottom to top. The fiber reinforcement layer (7) is laid on top of the backfill layer (6), and the fast-hardening crack-resistant leveling layer (8) is fixed on top of the hardened fiber reinforcement layer (7).

7. The sunken bathroom waterproof structure according to claim 6, characterized in that, The fiber reinforcement layer (7) is a nonwoven polyester fiber cloth, which is laid in a single layer on the backfill layer (6).

8. The sunken bathroom waterproof structure according to claim 6, characterized in that, The thickness of the fast-hardening crack-resistant leveling layer (8) is 1-10 mm.

9. The sunken bathroom waterproof structure according to claim 6, characterized in that, The upper waterproofing system (16) includes a waterproof coating layer (9) and a protective mortar layer (10) from bottom to top. The waterproof coating layer (9) is fixed to the upper surface of the quick-hardening crack-resistant leveling layer (8).

10. The sunken bathroom waterproof structure according to claim 9, characterized in that, The thickness of the waterproof coating layer (9) is 1-5 mm, and the thickness of the protective mortar layer (10) is 5-10 mm.

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