Modularized integrated building non-descending plate same-floor drainage toilet structure and construction technology

Abstract

The invention relates to the field of modular integrated buildings, in particular to a non-descending plate same-floor drainage toilet structure of a modular integrated building and a construction technology, the structure comprises a toilet module and a non-wading room module, the bottom surfaces of bottom pockets of the toilet module and the non-wading room module are flush, and the top surfaces of plates form a certain height difference; the method is used for realizing ground slope finding of the toilet module, ground water prevention and an anti-overflow height difference of 15mm with the finished surface of the non-wading room module. The combined design of the pressing floor drain and the drainage groove is used for achieving floor drainage of the washing area and the shower area of the bathroom module, and water on the ground of the shower area can be effectively prevented from returning and overflowing to the ground of the washing area. According to the process level, the toilet bottom pocket is poured through the back-off production process, in order to reduce the cost and improve the strength of a bottom plate, ultra-high-performance concrete is adopted for the toilet bottom pocket with the high waterproof requirement and a local upturning area, and common concrete is adopted for other back sills; the problem that the thickness of a ground surface layer is increased in order to achieve ground drainage in a non-descending-plate toilet is solved.

Description

Technical Field

[0001] The invention relates to the field of modular integrated buildings, and in particular to a modular integrated building non-drop floor same-floor drainage toilet structure and a construction process. Background Art

[0002] Concrete modular integrated building is a new type of rapid construction technology. It prefabricates the whole module (including the main structure, bathroom appliances, electromechanical pipelines and decoration) in the factory and assembles it on site to quickly complete the construction. Its core advantages lie in the high degree of assembly integration, fast construction efficiency and controllable quality. In response to the same-floor drainage needs of the bathroom, the current technology generally adopts a structural drop-plate design (drop-plate height 100-350mm) to accommodate drainage pipes, meet the ground waterproofing and slope requirements, and ensure that the ground height difference between the wading area and the non-wading area is ≥15mm.

[0003] The lowering plate structure has the following problems: First, the lowering plate structure causes the bottom pocket of the module and the floor slab to be lowered synchronously, which significantly increases the complexity of the mold, and the concrete at the folding plate is difficult to pour densely, which is easy to form a hidden danger of water leakage. Secondly, the hanging mold process must be used when pouring the concrete floor slab in the lowering plate area on the construction site, and the steel bars must be bent to pass through the bathroom area. The process is cumbersome and requires high precision, which directly reduces the construction efficiency and increases the difficulty of quality control. Furthermore, because the lower part of the bathroom area is protruding, the storage and transportation of the modules require customized special-shaped brackets, which not only increases the cost, but also reduces the work efficiency due to non-standard stacking and hoisting operations. Moreover, in the prior art, there are also some problems with the non-lowering plate structure: the existing non-lowering plate same-level drainage bathroom usually adopts a thickened ground surface layer, uses the ground surface layer to find the slope and lay some floor drain pipes, or uses an integrated bathroom to raise the ground to achieve non-lowering plate same-level drainage. Both methods are to raise the ground surface layer in disguise to remove the ground water, increase the thickness of the ground, increase the cost, and reduce the comfort of use. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The present invention provides a modular integrated building non-dropped floor same-floor drainage toilet structure and construction process, aiming to avoid the limitations of the dropped floor structure, and the height difference formed by the difference in floor thickness between the toilet and the non-water-related room is used to achieve the toilet floor slope, waterproof structure and the ground height difference required for a 15mm height difference with the non-water-related room floor; an integrated drainage trough is adopted, which is integrally formed with the toilet floor, has reliable waterproof performance, reduces construction procedures, and solves the ground drainage problem in dry and wet areas of the toilet; in order to reduce costs, the toilet floor is cast by combining two materials, and the upper area of ​​the counter-slope adopts low-cost ordinary concrete, and the bottom plate with higher waterproof requirements and the local upturned counter-slope adopt high-performance concrete, and the casting is carried out in batches.

[0006] (2) Technical solution

[0007] In order to achieve the above object, the present invention provides a modular integrated building non-slope same-floor drainage toilet structure, comprising:

[0008] A toilet module with a first floor;

[0009] A non-wading room module with a second floor;

[0010] The toilet module and the non-wading room module are combined into one by means of dry connection or wet connection;

[0011] The first floor is precast and poured or spray-formed with high-performance concrete, with a thickness of 20-40 mm. The second floor is cast with ordinary concrete, flush with the bottom of the first floor and having a height difference of 30-50 mm higher than the top of the first floor;

[0012] A drain trough assembly, embedded in the first floor and having an end connected to a drain pipe located in a pipe well;

[0013] A waterproof anti-camber assembly, comprising:

[0014] An isolation anti-camber, provided on the first floor and separating the toilet module into a wash area and a shower area, integrally cast with the high-performance concrete;

[0015] A surrounding anti-camber, provided around the first floor, cast in two steps with the high-performance concrete and the ordinary concrete.

[0016] A further technical solution lies in that the drain trough assembly includes a drain trough, a push-down floor drain and a grille cover plate;

[0017] The drain trough is provided with a drainage slope of 1%-3% along the length direction, integrally cast with the first floor and communicating with the wash area and the shower area of the toilet module;

[0018] The push-down floor drain is provided at one end of the drain trough located in the wash area, and the grille cover plate is covered above the drain trough.

[0019] A further technical solution lies in that a waterproof surface layer and a ceramic tile surface layer are sequentially laid above the first floor;

[0020] The top of the drain trough is provided with an outward flanging, the flanging is embedded in the first floor, the bottom of the drain trough is provided with a groove, and a metal plate is inserted into the groove, and the upper end of the metal plate is flush with the top surface of the ceramic tile surface layer.

[0021] A further technical solution lies in that the flanging is L-shaped.

[0022] A further technical solution is that the top surface of the first floor is provided with a drainage slope of 1%-3% or is horizontally arranged;

[0023] When the top surface of the first floor is provided with a drainage slope of 1%-3%, the waterproof surface layer is horizontally laid; when the top surface of the first floor is horizontally arranged, the top surface of the waterproof surface layer is provided with a drainage slope of 1%-3%.

[0024] The construction technology of the non-sloping same-floor drainage toilet structure in the modular integrated building in the above solution includes:

[0025] S1. Select a mold with an inverted structure according to the toilet specifications;

[0026] S2. Use the inverted pouring process to pour and form the toilet bottom pocket in two times: first pour ordinary concrete into the mold to the set elevation, and before the ordinary concrete starts to set, continue to pour high-performance concrete on its upper surface. The high-performance concrete forms an interlocking structure with the ordinary concrete under its own weight;

[0027] S3. After the high-performance concrete solidifies, remove and turn over the toilet bottom pocket, and lay the waterproof surface layer and the ceramic tile surface layer in sequence;

[0028] S4. Assemble the toilet module and the non-wading room module.

[0029] A further technical solution is that in step 2, the top of the four-sided anti-camber is formed by pouring ordinary concrete, and the bottom of the four-sided anti-camber, the first floor and the isolation anti-camber are integrally formed by pouring high-performance concrete.

[0030] A further technical solution is that the mold includes a mold table and side plates;

[0031] The side plates are arranged around the four sides of the mold table, and a gap is formed between the side plates and the mold table. The gap is used to form the four-sided anti-camber;

[0032] The top edge of the side plate is provided with a steel bar avoidance notch with an upward opening, which is used to cooperate with the demolding operation of the steel bars of the toilet module.

[0033] A further technical solution is that the mold table is provided with a forming notch, and the forming notch is used to form the isolation anti-camber of the toilet module.

[0034] A further technical solution is that in step 2, before pouring the high-performance concrete, a drainage trough is installed above the mold table, and the drainage trough is fixed to the mold table through a fixing member.

[0035] (III) Beneficial effects

[0036] In the structure of the same-floor drainage toilet without slab lowering in the modular integrated building proposed by the present invention, the thickness of the first floor of the cast-in-place toilet module is lower than that of the second floor of the non-wading room module. When the toilet module and the non-wading room module are assembled with their bottoms flush, a height difference is formed between the top surfaces of their floors. This height difference can be used to achieve the waterproofing and slope finding of the toilet floor, as well as the 15-mm height difference transition between the toilet floor and the non-wading room floor. The relatively thin first floor is cast with high-performance concrete, which can not only meet the strength requirements but also play a good role in preventing leakage, improve the product quality, reduce the complexity of the mold, and improve the construction efficiency. The second floor uses ordinary concrete. At the same time, the assembled toilet module and non-wading room module form a same-floor structure without slab lowering with flush bottoms, which can also effectively avoid the problem of increased manufacturing costs caused by the need to make special-shaped supports during the storage and transportation of modular buildings.

[0037] The drainage trough assembly adopted by the present invention is integrally formed with the toilet module floor, which simplifies the construction process, improves the bonding density between the drainage trough assembly and the floor, enhances the waterproof effect, and can achieve the ground drainage of the wet and dry areas of the toilet.

[0038] In the construction process of the same-floor drainage toilet without slab lowering in the modular integrated building proposed by the present invention, the bottom pocket of the toilet module is cast using an inverted production process. First, ordinary concrete is locally cast to a specified height, and then high-performance concrete is cast before solidification, avoiding the construction cold joint formed by the poor bonding between ordinary concrete and high-performance concrete, and thus the problem of water leakage caused by it. Secondly, the inverted production process is adopted, that is, ordinary concrete is cast first, and then high-performance concrete is cast. After demolding and flipping, the high-performance concrete layer is located below the ordinary concrete layer. In this way, during the forward casting process, the situation where ordinary concrete is located on top of high-performance concrete and ordinary concrete penetrates into ultra-high-performance concrete, resulting in the destruction of the high-performance concrete structure, is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic plan layout diagram of the same-floor drainage system of the non-slab-lowering toilet in the modular integrated building;

[0040] Figure 2 is Figure 1 the sectional view in the A-A direction in

[0041] Figure 3 is Figure 1 the sectional view in the B-B direction in

[0042] Figure 4 It is a longitudinal sectional view of the bottom pocket of the toilet module;

[0043] Figure 5 is Figure 2Enlarged schematic view at position C in [the figure];

[0044] Figure 6 is Figure 3 Enlarged schematic view at position D in [the figure];

[0045] Figure 7 is Figure 3 Enlarged schematic view at position E in [the figure].

[0046]

Explanation of reference numerals of the drawings

[0047] 1: First floor; 2: Second floor; 3: Drainage trough assembly; 31: Drainage trough; 311: Flange; 312: Groove; 32: Press-type floor drain; 33: Grille cover plate; 4: Waterproof anti-camber assembly; 41: Isolation anti-camber; 42: Peripheral anti-camber; 5: Drain pipe; 6: Waterproof surface layer; 7: Ceramic tile surface layer; 8: Metal plate; 9: Toilet; 10: Washbasin. Detailed implementation manners

[0048] For better explaining the present invention for easy understanding, the present invention will be described in detail below with reference to the drawings through specific implementation manners.

[0049] This embodiment provides a same-floor drainage toilet structure for modular integrated buildings without slab lowering, as Figure 3 shown, including: a toilet module having a first floor 1; a non-wading room module having a second floor 2. The toilet module and the non-wading room module are combined into one by a dry connection method. Of course, they can also be combined by a wet connection method. Referring to Figure 6 and Figure 7 shown, the first floor 1 can be prepared by a ready-mixed pouring or shotcrete forming process using high-performance concrete (HPC) or ultra-high-performance concrete (UHPC), with a thickness of 30 mm. Both materials have high strength, high durability, toughness and low permeability, and UHPC has better performance. In this embodiment, the first floor 1 is preferably constructed with UHPC.

[0050] The second floor surface layer 2 is formed by pouring ordinary concrete (here, the ordinary concrete specifically refers to C30 ordinary concrete), flush with the bottom of the first floor 1 and 40 mm higher than the top of the first floor, that is, the height of the second floor 2 is 70 mm. Referring to Figure 1 , Figure 2 shown, the drainage trough assembly 3 is embedded in the first floor surface layer 1 and its end is connected to the drain pipe 5 located in the pipe well. Referring to Figure 3 shown, the waterproof anti-camber assembly 4 includes: an isolation anti-camber 41 provided on the first floor surface layer 1 and separating the toilet module into a wash area and a shower area, integrally formed by UHPC; a peripheral anti-camber 42 provided around the first floor surface layer 1, formed by pouring UHPC and ordinary concrete in two steps.

[0051] Among them, as Figure 4 shown, the perimeter counterfort 42 is specifically composed of 300 mm of ordinary concrete and 80 mm of UHPC. The 80 mm UHPC layer is composed of the 30 mm thickness of the first floor 1 and an additional 50 mm overlay.

[0052] The bottom of the modular integrated building structure is also called the bottom pocket. The bottom pocket of the toilet module includes the first floor 1 and the waterproof counterfort assembly 4, and the bottom pocket of the non-wading room module includes the second floor 2. The toilet module and the non-wading room module are assembled into one in the factory by dry connection or wet connection. The thickness of the first bottom plate of the cast-in-place toilet module is lower than the thickness of the second bottom plate of the non-wading room module, and a height difference will be formed when the bottoms of the toilet module and the non-wading room module are flush during assembly. This height difference can be used to achieve the waterproofing and slope finding of the toilet floor and the 15 mm anti-overflow height difference between the toilet floor and the non-wading room floor. The relatively thin first floor surface layer 1 is cast with UHPC, which can not only meet the strength requirements but also play a good role in preventing seepage and leakage. The second floor surface layer 2 is cast with ordinary concrete to save costs.

[0053] Further, referring to Figure 1 shown, in this embodiment, the drain trough assembly 3 includes a drain trough 31, a push-down floor drain 32, and a grille cover 33. The drain trough 31 is provided with a 1% drainage slope along the length direction, is integrally cast with the first floor and communicates with the wash area and the shower area of the toilet module. The push-down floor drain 32 is arranged at one end of the drain trough 31 located in the wash area, and the grille cover 33 is covered above the drain trough 31. The drain trough 31 is pre-embedded inside the first floor 1, and the trough body and the UHPC adopt an inverted trapezoidal embedding structure to avoid structural damage caused by traditional post-grooving. At the same time, the drain trough 31 communicates with both the wash area and the shower area, enabling the drainage of the dry and wet areas of the toilet module floor. The dry area of the drain trough uses a push-down floor drain, which can effectively prevent the water on the shower area floor from overflowing back to the wash area floor.

[0054] Further, referring to Figure 5 、 Figure 6 shown, in this example, a waterproof surface layer 6 and a ceramic tile surface layer 7 are sequentially laid above the first floor 1. An outward L-shaped flange 311 is provided around the top of the drain trough 31, and the flange 311 is embedded in the first floor 1. A groove 312 is provided at the bottom of the drain trough 31, and a metal plate 8 is inserted into the groove 312. The upper end of the metal plate 8 is flush with the top surface of the ceramic tile surface layer 7. By inserting metal plates 8 of different heights, the problem of difficult ceramic tile closing caused by construction errors of UHPC or the waterproof surface layer 6 can be adapted, providing construction flexibility.

[0055] The construction process of the above modular integrated building non-drop-plate same-floor drainage toilet structure includes the following steps:

[0056] S1. Select a mold with an inverted buckle structure according to the specifications of the bathroom;

[0057] S2. Use the inverted casting process to cast the bathroom bottom pocket in two times: First, pour ordinary concrete into the mold to the set elevation. Before the ordinary concrete starts to set, continue to pour UHPC on its upper surface. Under the action of its own weight, the UHPC penetrates into the ordinary concrete to form an interlocking structure.

[0058] S3. After the UHPC solidifies, remove and turn over the bathroom bottom pocket, and lay the waterproof surface layer 6 and the ceramic tile surface layer 7 in sequence;

[0059] S4. Assemble the bathroom module and the non-wading room module.

[0060] In the above step 1, the mold used includes a mold table and side plates. The side plates are arranged around the mold table, and a gap is formed between the side plates and the mold table for forming the surrounding inverted cants 42; the top edge of the side plate is provided with a reinforcing bar avoidance notch with an upward opening for cooperating with the demolding operation of the reinforcing bars of the bathroom module.

[0061] Further, a forming notch is provided on the mold table for forming the isolation inverted cant 41 of the bathroom module.

[0062] After step 1 is completed, place the pre-prepared steel mesh in the mold. After pouring, the steel mesh will be embedded inside the concrete to enhance the overall structural strength. Further, upwardly protruding lifting rings are provided at the surrounding inverted cants 42 for the subsequent hoisting and transportation of the bathroom bottom pocket. At the same time, the reinforcing bars or connectors used for connecting with the non-wading room module are also fixed on the steel mesh to facilitate the subsequent assembly of the bathroom module and the non-wading room module.

[0063] In the above step 2, pour ordinary concrete to form the top of the surrounding inverted cant 42, and pour UHPC to integrally form the bottom of the surrounding inverted cant 42, the first floor surface layer 1 and the isolation inverted cant 41. Before pouring the UHPC.

[0064] Further, before pouring the UHPC, install a drainage trough 31 above the mold table and fix the drainage trough 31 to the mold table through fixing parts.

[0065] In the above step 3, after the UHPC solidifies, remove the bathroom module and turn it 180°. Lay the waterproof surface layer 6 and the ceramic tile surface layer 7 in sequence above the first floor surface layer 1 of the bathroom module.

[0066] It should be noted that before pouring UHPC, a drainage trough 31 is installed above the formwork table, and the drainage trough 31 is fixed to the formwork table through fixing parts. The fixing parts can be selected as welded by steel bars or fixed by suspended formwork. The upper surface of the formwork table has a 1% slope, and the slope is set with the drainage trough 31 as the lowest point. In another embodiment, the upper surface of the formwork table has no slope, and in this case, it is necessary to use mortar to find a 1% slope during the process of making the waterproof surface layer 6. In short, it is necessary to ensure that the upper surface of the laid ceramic tile surface layer 7 has a 1% slope for drainage.

[0067] In addition, in this embodiment, the bottom of the drainage trough 31 is provided with a 1% drainage slope along the length direction to drain the ground water. One end of the drainage trough 31 away from the pressing floor drain 32 has a structure for connecting the drain pipe 5. At the same time, the toilet 9 and the washbasin 10 located in the washroom area are both connected to the drain pipe 5 through pipes to facilitate the discharge of sewage and wastewater.

[0068] It should be noted that all directional indications (such as up, down, left, right, front, back...) in this embodiment are only used to explain the relative position relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0069] In this embodiment, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those skilled in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0070] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.

Claims

1. A same-floor drainage toilet structure for a modular integrated building without slab lowering, characterized in that, Comprising: A toilet module, having a first floor (1); A non-wading room module, having a second floor (2); The toilet module and the non-wading room module are combined into one by means of dry connection or wet connection; The first floor (1) is precast and poured or spray-formed with high-performance concrete, with a thickness of 20 - 40 mm, and the second floor (2) is poured and formed with ordinary concrete, flush with the bottom of the first floor (1) and having a height difference of 30 - 50 mm higher than the first floor (1) at the top; A drain trough assembly (3), embedded in the first floor (1) and having an end connected to a drain pipe (5) located in a pipe well; A waterproof curb assembly (4), comprising: An isolation curb (41), provided on the first floor (1) and separating the toilet module into a wash area and a shower area, integrally poured and formed with the high-performance concrete; A perimeter curb (42), provided around the first floor (1), poured and formed in two stages with the high-performance concrete and ordinary concrete.

2. The same-floor drainage toilet structure of the modular integrated building without slab lowering as claimed in claim 1, characterized in that The drain trough assembly (3) includes a drain trough (31), a push-down floor drain (32) and a grille cover plate (33); The drain trough (31) is provided with a drainage slope of 1% - 3% along the length direction, integrally poured and formed with the first floor and communicating with the wash area and the shower area of the toilet module; The push-down floor drain (32) is provided at one end of the drain trough (31) located in the wash area, and the grille cover plate (33) is covered above the drain trough (31).

3. The modular integrated building non-drop floor same-floor drainage toilet structure according to claim 2, wherein A waterproof surface layer (6) and a ceramic tile surface layer (7) are sequentially laid above the first floor (1); Flanges (311) extending outward are provided around the top of the drain trough (31), the flanges (311) are embedded in the first floor (1), a groove (312) is provided at the bottom of the drain trough (31), and a metal plate (8) is inserted into the groove (312), and the upper end of the metal plate (8) is flush with the top surface of the ceramic tile surface layer (7).

4. The same-floor drainage toilet structure of the modular integrated building without slab lowering as claimed in claim 3, characterized in that, The flange (311) is L-shaped.

5. The modular integrated building non-drop floor same-floor drainage toilet structure according to claim 3, wherein The top surface of the first floor (1) is provided with a drainage slope of 1% - 3% or is horizontally arranged; When the top surface of the first floor (1) is provided with a drainage slope of 1% - 3%, the waterproof surface layer (6) is horizontally laid; when the top surface of the first floor (1) is horizontally arranged, the top surface of the waterproof surface layer (6) is provided with a drainage slope of 1% - 3%.

6. A construction process for a same-floor drainage toilet without slab lowering in a modular integrated building, having the structure of the same-floor drainage toilet without slab lowering in the modular integrated building as described in any one of claims 1-5, characterized in that, Comprising: S1. Select a mold with an inverted buckle structure according to the toilet specifications; S2. Use the inverted pouring process to pour and form the toilet bottom pocket in two stages: first pour ordinary concrete into the mold to the set elevation, and before the ordinary concrete starts to set, continue to pour high-performance concrete on its upper surface, and the high-performance concrete forms an interlocking structure with the ordinary concrete under its own weight; S3. After the high-performance concrete solidifies, remove and turn over the toilet bottom pocket, and sequentially lay the waterproof surface layer (6) and the ceramic tile surface layer (7); S4. Assemble the toilet module and the non-wading room module.

7. The construction process of the non-sloping same-floor drainage toilet in the modular integrated building according to claim 6, characterized in that In step 2, ordinary concrete is poured to form the top of the surrounding anti-camber (42), and high-performance concrete is poured integrally to form the bottom of the surrounding anti-camber (42), the first floor (1) and the isolation anti-camber (41).

8. The construction process of the same-floor drainage toilet without slab lowering in the modular integrated building as described in claim 6 is characterized in that, The mold includes a mold table and side plates; The side plates are arranged around the mold table, and a gap is formed between the side plates and the mold table, and the gap is used for forming the surrounding anti-camber (42); The top edge of the side plate is provided with a steel bar avoidance notch with an upward opening, which is used to cooperate with the demolding operation of the steel bars protruding from the toilet module.

9. The construction process of the same-floor drainage toilet without slab lowering in the modular integrated building as described in claim 8 is characterized in that, The mold table is provided with a forming notch, and the forming notch is used for forming the isolation anti-camber (41) of the toilet module.

10. The construction process of the same-floor drainage toilet without slab lowering in the modular integrated building as claimed in claim 8, characterized in that, In step 2, before pouring high-performance concrete, a drainage trough (31) is installed above the mold table, and the drainage trough (31) is fixed to the mold table through a fixing member.

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