A secondary floor drain connection structure for a sunken toilet and its construction technology
By adopting a double floor drain structure and a hydrophobic layer design in the sunken bathroom, the problem of leakage of the sunken buried drainage pipe is solved, and the ground is waterproof and simple maintenance is achieved, and the comfort and economic benefits of the building are improved.
Patent Information
- Application Number
- CN202010386896.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2040-05-09
AI Technical Summary
Sinked buried drainage pipes are prone to leakage problems during use, resulting in the building floor not being waterproof and difficult to solve for maintenance, causing great economic losses.
Adopt a double floor drain structure with upper and lower light and dark, including embedded casing, ceramic layer, vertical guide well and light aggregate filling to form a hydrophobic layer and drainage system to ensure smooth water discharge and pass through light aggregate and ceramic layer The design simplifies the maintenance process.
Effectively prevent ground leakage, simplify the maintenance process, improve building comfort and economic benefits, and reduce maintenance costs caused by leakage.
Smart Images
Figure CN111424797B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of building construction, and in particular relates to a secondary floor drain connection structure for a sunken toilet and a construction process thereof. Background Art
[0002] In order to meet the requirements of architectural aesthetics, the drainage pipes of many public canteens, school toilets, and high-end residences are currently uniformly arranged in boxes sunken under partial floor slabs, that is, the horizontal pipes of the floors are buried secretly.
[0003] For the installation of sunken concealed pipes and floor drains, there may be three ways for leakage points. First, ground water seeps through the gaps in floor tiles to the cast-in-place slab surface, and water accumulates to cause leakage. Second, water accumulates due to leakage after the pipes are installed and used. Third, water from other surrounding areas seeps into the sinking box at a low point.
[0004] After years of practice, the biggest disadvantage of the above-mentioned method of burying pipes in a sunken box is the leakage problem in the sunken floor. This leakage problem brings great trouble to the buildings put into production. When solving this problem, it is often difficult to find a water source, and temporary blocking measures cannot solve the problem fundamentally. If the work is completely redone, it will result in great losses. Summary of the invention
[0005] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a secondary floor drain connection structure and a construction process for a sunken toilet. By adopting this process, the water collected in the sunken box due to various reasons can be drained through the secondary floor drain and flow into the drain pipe again in a drainage manner, thereby achieving the use function of the sunken pipe installation method and meeting the original intention of the design.
[0006] The secondary floor drain connection structure of a sunken toilet comprises a drainage pipe system and a vertical water guide well installed in a sunken box, the sunken box comprises a sunken floor, and is characterized in that the drainage pipe system comprises an upper floor drain, a drainage riser and a hidden floor drain, the hidden floor drain is arranged on the sunken floor, a pre-buried sleeve is arranged in the sunken floor, a slope leveling layer and a lower waterproof layer are arranged on the periphery of the pre-buried sleeve on the sunken floor, the bottom end of the hidden floor drain is socketed in the pre-buried sleeve, the lower end of the drainage riser is connected to the hidden floor drain, and the upper end is connected to the upper floor drain The vertical water guide well is surrounded by lightweight blocks. A ceramsite layer is arranged between the bottom of the vertical water guide well and the sunken floor slab. The inside of the vertical water guide well is filled with ceramsite, and the outside of the vertical water guide well is filled with lightweight aggregate. The filling height of the lightweight aggregate and ceramsite is consistent with the height of the vertical water guide well. A leveling layer, a waterproof layer, a paving mortar layer and a facing brick layer are arranged in sequence on the lightweight aggregate, ceramsite and the vertical water guide well. The upper floor drain is arranged in the leveling layer, the upper waterproof layer, the paving mortar layer and the facing brick layer, and the upper surface of the upper floor drain cannot be higher than the surface of the facing brick.
[0007] The secondary floor drain connection structure of a sunken toilet is characterized in that a ceramsite layer is laid around the hidden floor drain, with an area of not less than 400mm×400mm and a thickness of 20mm, and the ceramsite layer acts as a hydrophobic layer around the hidden floor drain.
[0008] The secondary floor drain connection structure of a sunken toilet is characterized in that the thickness of the leveling layer is not less than 50 mm, preferably 30-50 mm.
[0009] The secondary floor drain connection structure of a sunken toilet is characterized in that the slope of the slope layer is 1-3%.
[0010] The construction process of the secondary floor drain connection structure of the sunken toilet is characterized by comprising the following steps:
[0011] 1) Construction of the sunken floor slab, and at the same time, pre-buried casing in the sunken floor slab for connecting the drainage pipe system. After the construction of the sunken floor slab is completed, fine stone concrete is used on the sunken floor slab to find the slope and obtain the slope layer;
[0012] 2) Apply waterproof coating on the fine stone concrete sloping layer in step 1) and apply it on the facade 200mm above the ground to obtain the lower waterproof layer;
[0013] 3) Install the hidden floor drain and insert the hidden floor drain socket into the embedded sleeve in the sunken floor slab;
[0014] 4) Install the drainage riser, insert the drainage riser into the concealed floor drain, and cut the drainage riser length according to the actual height of the sinking box;
[0015] 5) Lay a ceramsite layer. Lay a layer of ceramsite around the hidden floor drain with an area of not less than 400mm×400mm and a thickness of 20mm. The obtained ceramsite layer serves as a hydrophobic layer around the hidden floor drain;
[0016] 6) Construction of vertical water guide wells: Use lightweight blocks to build on the ceramsite layer around the hidden floor drain to obtain a vertical water guide well;
[0017] 7) Filling the inner side of the vertical water guide well obtained in step 6) with ceramsite to form a vertical hydrophobic layer;
[0018] 8) Use lightweight aggregate to backfill the gap outside the vertical water guide well of the caisson;
[0019] 9) Lay and pour a layer of concrete with a thickness of not less than 50 mm on the backfilled lightweight aggregate in step 8) and the ceramsite in step 7) to obtain a leveling layer;
[0020] 10. Apply a layer of waterproof coating on the ground leveling layer to obtain a ground waterproof layer;
[0021] 11) Install a floor drain at the top of the drainage riser, and lay floor tiles on the waterproof layer with cement mortar to obtain a surface tile layer.
[0022] The construction process of the secondary floor drain connection structure of the sunken toilet is characterized in that the slope of the slope leveling layer is 1-3%.
[0023] The construction process of the secondary floor drain connection structure of the sunken toilet is characterized in that the thickness of the lower waterproof layer is 1-3 mm, preferably 2 mm, and the waterproof layer is painted on the facade 200 mm higher than the ground.
[0024] The construction process of the secondary floor drain connection structure of the sunken toilet is characterized in that the drainage slope of the floor tiles of the surface tile layer is 1%.
[0025] By adopting the above technology, compared with the prior art, the present invention has the following beneficial effects:
[0026] 1) The present invention adopts a limited secondary floor drain connection structure of the sunken toilet, that is, adopts an upper and lower bright and dark double floor drain structure, which can realize the collection of ground seepage water in any direction in the sunken toilet, and then smoothly discharge it through the dark floor drain, ensuring that the floor of the canteen, toilet and other floors is waterproof and leak-proof, solving the problem of floor leakage caused by damage to the ground waterproof layer during floor decoration, leakage of water-using appliances after years of use, and leakage of horizontal buried pipe interfaces after years of use, thereby improving the comfort of building use;
[0027] 2) The present invention is simple and convenient to maintain. When foreign matter enters the floor drain riser and blocks it, the riser can be inspected or replaced by simply taking out the ceramsite in the vertical water guide well, without the need for large-scale destructive maintenance on the ground.
[0028] 3) The sunken toilet secondary floor drain of the present invention has a simple structure, is easy to construct, and is also quick and convenient to maintain. It can meet the functional and design requirements and increase social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a structural schematic diagram of the present invention.
[0030] In the figure: 1- facing brick layer; 2- paving mortar layer; 3- upper waterproof layer; 4- leveling layer; 5- upper floor drain; 6- drainage riser; 7- hidden floor drain; 8- vertical water guide well; 9- expanded clay layer; 10- sunken floor slab; 11- lightweight aggregate; 12- lower waterproof layer; 13- slope layer. DETAILED DESCRIPTION
[0031] The present invention is further described below in conjunction with embodiments, but the protection scope of the present invention is not limited thereto:
[0032] like Figure 1As shown, a secondary floor drain connection structure of a sunken toilet of the present invention comprises a drainage pipe system and a vertical water guide well 8 installed in a sunken box, the sunken box comprises a sunken floor 10, the drainage pipe system comprises an upper floor drain 5, a drainage riser 6 and a hidden floor drain 7, the hidden floor drain 7 is arranged on the sunken floor 10, a pre-buried sleeve 10a is arranged in the sunken floor 10, a slope layer 13 and a lower waterproof layer 12 are arranged on the periphery of the pre-buried sleeve 10a on the sunken floor 10, the bottom end of the hidden floor drain 7 is arranged in the pre-buried sleeve 10a, the lower end of the drainage riser 6 is connected to the hidden floor drain 7, and the upper end is connected to the upper floor drain 5. The vertical water guide well 8 is surrounded by lightweight blocks. A ceramsite layer 9 is provided between the bottom of the vertical water guide well 8 and the sunken floor 10. The inside of the vertical water guide well 8 is filled with ceramsite, and the outside of the vertical water guide well 8 is filled with lightweight aggregate 11. The filling height of the lightweight aggregate 11 and the ceramsite is consistent with the height of the vertical water guide well 8. A leveling layer 4, an upper waterproof layer 3, a paving mortar layer 2 and a facing brick layer 1 are provided on the lightweight aggregate 11, the ceramsite and the vertical water guide well 8 in sequence. The upper floor drain 5 is arranged in the leveling layer 4, the upper waterproof layer 3, the paving mortar layer 2 and the facing brick layer 1, and the upper surface of the upper floor drain 5 cannot be higher than the surface of the facing brick 1.
[0033] As shown in the figure, the ceramsite layer 9 of the present invention is laid around the hidden floor drain 7, with an area of not less than 400mm×400mm and a thickness of 20mm. The ceramsite layer 8 acts as a hydrophobic layer around the hidden floor drain 7.
[0034] As shown in the figure, the construction process of the secondary floor drain connection structure of the sunken toilet of the present invention includes the following steps:
[0035] 1) Construction of the sunken floor slab. At the same time, a casing is pre-buried in the sunken floor slab 10 for connecting the drainage pipe system. After the construction of the sunken floor slab is completed, fine stone concrete is used to level the slope on the sunken floor slab 10 to obtain a slope leveling layer 13. The slope of the slope leveling layer 13 is generally 1-3%;
[0036] 2) The fine stone concrete slope layer 13 and the inner wall of the lower caisson in step 1) are fully coated with waterproof coating, and the waterproof coating is extended upward along the inner wall of the lower caisson to the surrounding vertical walls. The height of the vertical wall should be 200mm higher than the ground to obtain a lower waterproof layer 12. The thickness of the lower waterproof layer 12 is 1-3mm, preferably 2mm;
[0037] 3) Install the hidden floor drain 7, and insert the hidden floor drain 7 into the pre-buried sleeve 10a in the sunken floor slab 10;
[0038] 4) Install the drainage riser 6, and insert the drainage riser 6 into the hidden floor drain 7. The length of the drainage riser 6 is cut according to the actual height of the sinking box, that is, the drainage riser 6 is used to connect the hidden floor drain 7 and the upper floor drain 5. After the positions of the hidden floor drain 7 and the upper floor drain 5 are determined, the length of the drainage riser 6 can naturally be clearly determined;
[0039] 5) Laying a ceramsite layer 9, laying a layer of ceramsite around the hidden floor drain 7, with an area of not less than 400mm×400mm and a thickness of 20mm, the obtained ceramsite layer 9 is used as a hydrophobic layer around the hidden floor drain;
[0040] 6) Construction of the vertical water guide well 8, using lightweight blocks to build on the ceramsite layer 9 around the hidden floor drain 7 to obtain the vertical water guide well 8;
[0041] 7) Filling the inner side of the vertical water guide well 8 obtained in step 6) with ceramsite to form a vertical hydrophobic layer;
[0042] 8) Backfill the outer space of the vertical water guide well 8 of the caisson with lightweight aggregate;
[0043] 9) Laying and pouring a layer of concrete on the backfilled lightweight aggregate in step 8) and the ceramsite in step 7) with a thickness of not less than 50 mm, preferably 30-50 mm, to obtain a leveling layer 4;
[0044] 10) Apply a layer of waterproof coating on the ground leveling layer to obtain an upper waterproof layer 3;
[0045] 11) Install a floor drain at the top of the drainage riser 6, and lay floor tiles on the upper waterproof layer 3 with cement mortar to obtain a laying mortar layer 2 and a facing brick layer 1 on the laying mortar layer 2. When laying the floor tiles of the facing brick layer 1, the drainage slope near the floor drain 5 is 1%.
Claims
1. A secondary floor drain connection structure for a sunken toilet, comprising a drainage pipe system and a vertical water guide well (8) installed in a sunken box, wherein the sunken box comprises a sunken floor (10), characterized in that The drainage pipe system comprises an upper floor drain (5), a drainage riser (6) and a concealed floor drain (7), wherein the concealed floor drain (7) is arranged on a sunken floor slab (10), a pre-buried casing (10a) is arranged in the sunken floor slab (10), a slope leveling layer (13) and a lower waterproof layer (12) are arranged on the sunken floor slab (10) on the periphery of the pre-buried casing (10a), the bottom end of the concealed floor drain (7) is arranged in the pre-buried casing (10a) in a socket-shaped manner, the lower end of the drainage riser (6) is connected to the concealed floor drain (7), and the upper end is connected to the upper floor drain (5), the vertical water guide well (8) is enclosed by lightweight blocks, and a ceramsite layer (9) is arranged between the bottom of the vertical water guide well (8) and the sunken floor slab (10), The inside of the vertical water guide well (8) is filled with ceramsite, and the outside of the vertical water guide well (8) is filled with lightweight aggregate (11). The filling height of the lightweight aggregate (11) and the ceramsite is consistent with the height of the vertical water guide well (8). A leveling layer (4), an upper waterproof layer (3), a paving mortar layer (2) and a facing brick layer (1) are sequentially arranged on the lightweight aggregate (11), the ceramsite and the vertical water guide well (8). The upper floor drain (5) is arranged in the leveling layer (4), the upper waterproof layer (3), the paving mortar layer (2) and the facing brick layer (1), and the upper surface of the upper floor drain (5) cannot be higher than the surface of the facing brick layer (1). The construction process of the secondary floor drain connection structure of the sunken toilet comprises the following steps: 1) Construction of the sunken floor slab (10), and pre-buried casing pipes in the sunken floor slab (10) for connecting the drainage pipe system. After the construction of the sunken floor slab (10) is completed, fine stone concrete is used to level the slope on the sunken floor slab (10) to obtain a slope leveling layer (13); 2) Apply waterproof coating all over the fine stone concrete sloping layer in step 1) and extend upward along the inner wall of the lower caisson to the surrounding facade walls. The height of the facade walls should be 200 mm higher than the ground to obtain the lower waterproof layer (12); 3) installing a concealed floor drain (7), and inserting the concealed floor drain (7) into a pre-buried sleeve (10a) in the sunken floor slab (10); 4) Install the drainage riser (6) and insert the drainage riser (6) into the concealed floor drain (7); 5) Laying a ceramsite layer (9), laying a layer of ceramsite around the hidden floor drain (7), with an area of not less than 400 mm×400 mm and a thickness of 20 mm, the obtained ceramsite layer (9) serving as a hydrophobic layer around the hidden floor drain (7); 6) Construction of a vertical water guide well (8), using lightweight blocks to build on the ceramsite layer (9) around the hidden floor drain (7) to obtain a vertical water guide well (8); 7) Filling the inner side of the vertical water guide well (8) obtained in step 6) with ceramsite to form a vertical hydrophobic layer; 8) Backfilling the outer void of the vertical water guide well (8) of the caisson with lightweight aggregate; 9) Laying and pouring a layer of concrete with a thickness of not less than 50 mm on the backfilled lightweight aggregate in step 8) and the ceramsite in step 7) to obtain a leveling layer (4); 10) Applying a layer of waterproof coating on the leveling layer (4) to obtain an upper waterproof layer (3); 11) Install a floor drain (5) at the top of the drainage riser (6), and lay floor tiles on the upper waterproof layer (3) using cement mortar to obtain a tile layer (1).
2. A secondary floor drain connection structure for a sunken toilet according to claim 1, characterized in that The slope of the slope layer (13) is 1-3%.
3. A secondary floor drain connection structure for a sunken toilet according to claim 1, characterized in that The thickness of the lower waterproof layer (12) is 1-3 mm.
4. A secondary floor drain connection structure for a sunken toilet according to claim 1, characterized in that The floor tile drainage slope of the surface tile layer (1) is 1%.
5. A secondary floor drain connection structure for a sunken toilet according to claim 1, characterized in that The thickness of the lower waterproof layer (12) is 2 mm.