Drainage system suitable for modular integrated building and construction method

Abstract

The invention discloses a drainage system suitable for a modular integrated building and a construction method. The system comprises a reverse ridge, a lower connection pipe, a butt joint pipe and an upper connection pipe. The reverse ridge is arranged on the top plate module of the module box body, and a first via hole group is arranged in the reverse ridge; the lower connection pipe comprises a lower pipe body and a fixed pipe fitting; the fixed pipe fitting is fixedly arranged on the bottom plate module and comprises a straight-through drainage pipe fitting and a three-way drainage pipe fitting. The bottom of the upper connection pipe is connected with the top of the lower connection pipe into a whole through a butt joint pipe, and the top of the upper connection pipe penetrates through the first via hole set and then is in butt joint with the fixing pipe fitting of the upper module box. According to the drainage system, high-precision formwork positioning and pipe fitting pre-burying and fixing are carried out in the MIC structure modular prefabrication stage, precise positioning can be effectively guaranteed, the construction processes of sleeve pre-burying, line snapping positioning during pipeline mounting, hole plugging after pipeline mounting and the like are reduced, the assembly rate and the mounting quality are improved, and the construction cost is reduced. And the connection problem of the MIC modular integrated building drainage system is solved to the greatest extent.

Description

Technical Field

[0001] The embodiments of the present invention belong to the technical field of modular integrated buildings, and more specifically, to a drainage system and a construction method suitable for modular integrated buildings. Background Art

[0002] With the development of prefabricated building technology, especially the application of modular integrated building (MiC), it is called the 4.0 era of prefabricated building. This construction method can be widely used in a variety of construction projects, including high-rise buildings and residential projects, hotels and tourist resorts, education and medical care, etc. As one of the key technologies in these projects, the application prospects of drainage risers have become more extensive with the development of prefabricated building technology. Among them, the integration of modular integrated building drainage risers and the connection between the upper and lower layers have become the pain points in this field.

[0003] In the existing technical solution, when installing the drainage riser of modular integrated buildings, the drainage steel casing is pre-buried through the upper and lower floor plates of the module, and the drainage riser is sealed after installation. However, it has the following disadvantages: (1) the drainage riser cannot be absolutely placed in the casing during installation; (2) the top casing cannot be sealed after the pipeline is installed, and it is difficult to hang the bottom casing hole; (3) the control accuracy of the modular building hoisting is high, and the drainage riser cannot be connected when the casing is misaligned.

[0004] Therefore, at this stage, there is an urgent need for a new type of drainage pipe fittings used in MIC modular integrated building drainage systems, which can solve the problems of modular integrated building drainage riser connection and the difficulty of sealing casing while maintaining the integrity of the building structure, so as to achieve an efficient and stable drainage system. Summary of the invention

[0005] In view of the problems of poor connection accuracy, low efficiency and difficulty in plugging casing of drainage risers in modular integrated buildings in the prior art, the present invention provides a drainage system suitable for modular integrated buildings to solve such problems.

[0006] In order to achieve the above object, the present invention provides a drainage system construction method suitable for modular integrated buildings, comprising the following steps:

[0007] S100: Produce straight-through drainage pipe fittings and three-way drainage pipe fittings with water stop rings and annular fixing plates to replace the conventional pre-buried steel casing in the floor slab, thereby reducing the sinking height of the bathroom area in the module box;

[0008] S200: During the module box manufacturing stage, the fixed pipe fittings are installed at the designated position through the limit assembly, and connected to the base plate module through subsequent pouring;

[0009] S300: Tie the steel skeleton of the anti-ridge and the positioning groove on the steel cage of the top plate module, and perform formwork; tie the steel skeleton of the positioning block and the limit frame on the steel cage of the bottom plate module, and perform formwork;

[0010] S400: Cast the module box, check whether each part reaches the standard, and make corresponding adjustments;

[0011] S500: Perform positioning drilling in the counter-sill, and after the drilling is completed, check whether the center line of the first through-hole group coincides with the first through-hole group; after the drilling is completed, assemble the upper connecting pipe and the butt pipe in sequence, and complete the installation of other accessories of the drainage system;

[0012] S600: After the module box is transported to the designated point for installation, the steel mesh and grout are laid on the top of the top plate module;

[0013] S700: hoisting the upper module box, aligning the positioning block of the upper module box with the positioning groove, and lowering the upper module box, so that the positioning block is embedded in the positioning groove to accurately position the upper and lower module boxes;

[0014] S800: Apply adhesive to the outer rings of the upper and lower ends of the upper connecting pipe, insert the upper end into the lower end of the fixed pipe provided on the upper module box, and insert the lower end into the butt joint pipe of the module box on this layer to complete the installation of the drainage system.

[0015] Another aspect of the present invention provides a drainage system suitable for modular integrated buildings, comprising: a positioning groove provided on a top plate module, a counter-ridge being constructed in the positioning groove, and the two are cast together with the top plate module by tying a steel bar skeleton and supporting a formwork;

[0016] A lower connecting pipe is arranged on the bottom plate module, and the lower connecting pipe includes a lower pipe body and a fixed pipe fitting; the fixed pipe fitting is pre-buried at a corresponding position on the bottom plate module; the lower pipe body is inserted and fixed in the upper end of the fixed pipe fitting; a positioning block is arranged at the bottom of the bottom plate module, the size of the positioning block is adapted to the positioning groove, and a limit frame is provided at its bottom, and the two are cast together with the bottom plate module by tying a steel skeleton and supporting the formwork; a first through-hole group is opened in the anti-ridge, and the opening diameter of the first through-hole group is larger than the corresponding pipe diameter of the upper connecting pipe; a sealed connection part is formed by laying a steel mesh and applying grout on the top of the top plate module, which is used to increase the connection strength with the upper module box and seal the gap between the two; a sleeve is fixed on the lower pipe body The butt joint pipe at the end is pre-installed; the upper connecting pipe is installed later, the lower end of the upper connecting pipe is inserted and fixed in the butt joint pipe, and the upper end passes through the first through-hole group and is inserted into the lower end pipe body of the fixed pipe provided on the upper module box; a steel mesh is laid and grout is applied on the top of the top plate module to form a sealed connection part. Due to the high blocking of the anti-ridge, the concrete slurry is prevented from leaking into the first through-hole group and the lower connecting pipe, affecting the later assembly; the upper module box is hoisted, the positioning block of the upper module box is aligned with the positioning groove, and the upper module box is lowered, so that the positioning block is embedded in the positioning groove to accurately position the upper and lower module boxes; the upper connecting pipe can be installed to quickly complete the drainage system installation between adjacent module boxes.

[0017] Furthermore, the fixed pipe fittings include straight-through drainage pipe fittings and three-way drainage pipe fittings, and annular fixing plates are respectively provided on the outer periphery of the bottom, and positioning holes are opened on the annular fixing plates.

[0018] Furthermore, water stop rings are respectively provided on the pipe bodies of the straight-through drainage pipe fitting and the three-way drainage pipe fitting.

[0019] Furthermore, the size of the positioning block is adapted to the positioning groove, and the center points of the two coincide in the vertical direction.

[0020] Furthermore, the position of the limit frame corresponds to the anti-ridge, and its size is larger than the anti-ridge.

[0021] Furthermore, a limit frame is provided at the bottom of the positioning block, the position of the limit frame corresponds to the anti-ridge, and the size of the limit frame is larger than the anti-ridge.

[0022] Furthermore, a first adhesive layer is provided between the lower tube body and the fixed tube fitting, and the first adhesive layer seals and fixes the connection portion between the lower tube body and the fixed tube fitting to prevent shaking and leakage therebetween.

[0023] Furthermore, a second adhesive layer is provided between the upper end of the upper connecting pipe and the fixed pipe provided on the upper module box body, and the second adhesive layer seals and secures the connection between the upper connecting pipe and the fixed pipe provided on the upper module box body.

[0024] Furthermore, a third adhesive layer is provided between the upper end of the upper connecting pipe and the butt pipe, and the third adhesive layer seals and glues the connection between the lower end of the upper connecting pipe and the upper end of the butt pipe.

[0025] Furthermore, the fixing pipe is made of PVC material.

[0026] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0027] (1) The drainage system of the present invention adopts straight drainage pipe fittings and three-way drainage pipe fittings to replace the conventional pre-buried steel casing in the floor slab, thereby reducing the sinking height of the bathroom area in the module box; by making a counter-ridge to prevent the concrete slurry from leaking into the first through-hole group and the lower connecting pipe, it solidifies with the surrounding concrete slurry to form a closed space, isolating the gap between the upper and lower module boxes, so there is no need to seal the bottom hanging hole of the fixed pipe fitting (the decoration problem can be solved by the later suspended ceiling); by high-precision pre-buried fixed pipe fittings and pre-installed upper connecting pipes and butt pipes in the early stage, when performing on-site installation later, it is only necessary to apply adhesive to the outer rings of the upper and lower ends of the upper connecting pipe, insert the upper end into the lower end pipe body of the fixed pipe fitting provided on the upper module box, and insert the lower end into the butt pipe of the module box on this layer, so that the installation of the drainage system can be completed quickly, thereby greatly improving the construction efficiency of the MIC modular integrated building.

[0028] (2) The drainage system of the present invention can effectively ensure accurate positioning by performing high-precision template positioning and pre-embedding fixed pipe fittings during the modular prefabrication stage of the MIC structure. Through the straight-through drainage pipe fittings and three-way drainage pipe fittings with water stop rings, it reduces the construction process of pre-embedding the casing, positioning by marking lines when installing the pipes, and sealing the holes after installing the pipes, thereby improving the pipe assembly rate and installation quality of the modular integrated building drainage system, saving construction costs, and solving the connection problem of the MIC modular integrated building drainage system to the greatest extent.

[0029] (3) The drainage system of the present invention, by providing matching positioning blocks and positioning grooves, embedding the positioning blocks into the positioning grooves, can perform rapid and accurate positioning when hoisting the module box, avoiding the need to adjust various standard lines in the later stage, greatly speeding up the installation efficiency while ensuring accuracy. At the same time, the positioning block also has a limit frame at the bottom, the position of the limit frame corresponds to the anti-slope, and its size is larger than the anti-slope, to prevent the upper module box from tilting during the hoisting process and crushing the anti-slope, thereby ensuring the integrity of the module box components during the installation process.

[0030] (4) The drainage system of the present invention, by setting the opening diameter of the first through-hole group larger than the corresponding pipe diameter of the upper connecting pipe, can easily observe the position of the fixed pipe fittings provided on the upper module box at the bottom of the first through-hole group, which is convenient for the upper connecting pipe to be accurately connected. At the same time, it also provides a margin range for the installation error of the upper and lower module boxes or the fixed pipe fittings provided on the upper module box. Even if the upper module box is fixed, the deviation is not greater than the aperture range of the first through-hole group, and the upper connecting pipe can be connected to the fixed pipe fittings provided on the upper module box. At the same time, since the height space in the module box is sufficient, the upper connecting pipe and the lower connecting pipe can be connected at a certain inclination angle. The inclination angle is within the allowable error and does not affect the connection effect and anti-leakage requirements, thereby solving the problem that the drainage riser cannot be connected when the casing is misaligned.

[0031] (5) The drainage system of the present invention is provided with fixed pipes to replace the conventional pre-buried drainage steel casings in the floor slabs, which can be directly connected up and down, effectively reducing the connection height between the fixed pipes and the horizontally arranged drainage components in the room. There is no need to set a switching pipe above the conventional pre-buried drainage steel casings in the floor slabs to connect with the horizontally arranged drainage components in the room, thereby reducing the sinking height of the bathroom area in the module box and avoiding the irregular overall shape of the bottom of the module box due to the sinking design, which makes the later hoisting, transportation and placement very inconvenient and increases the transportation and placement cost.

[0032] (6) In the drainage system of the present invention, water stop rings are respectively provided on the pipe bodies of the straight drainage pipe fittings and the three-way drainage pipe fittings. The water stop rings can cooperate with the annular fixing plate to extend the water infiltration path several times, greatly increasing the infiltration resistance, making the periphery of the fixed pipe fittings have good waterproof ability, and avoiding the occurrence of gaps between the fixed pipe fittings and the concrete after the fixed pipe fittings are aged and deformed, resulting in water leakage and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a module box body using a drainage system in an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of the structure of a drainage system in an embodiment of the present invention;

[0035] Figure 3 It is a bottom view structural schematic diagram of the drainage system in an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of the top view of the drainage system in an embodiment of the present invention;

[0037] Figure 5 It is a structural schematic diagram of a three-way drainage pipe fitting in an embodiment of the present invention;

[0038] Figure 6It is a structural schematic diagram of a straight-through drainage pipe fitting in an embodiment of the present invention;

[0039] Figure 7 The present invention is a flowchart of a construction method for a drainage system suitable for a modular integrated building in an embodiment of the present invention.

[0040] In all the drawings, the same figure numbers represent the same technical features, specifically: 1-module box, 11-top plate module, 12-bottom plate module, 2-positioning groove, 3-positioning block, 4-anti-ridge, 5-lower connecting pipe, 51-lower pipe body, 52-fixed pipe fitting, 521-straight drainage pipe fitting, 522-three-way drainage pipe fitting, 6-butt pipe, 7-upper connecting pipe. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] like Figure 1-6 As shown, the present invention provides a drainage system suitable for modular integrated buildings, including a counter sill 4, a lower connecting pipe 5, a butt pipe 6 and an upper connecting pipe 7. The counter sill 4 is arranged on the top plate module 11 of the module box 1, and a first through hole group is arranged therein for passing the upper connecting pipe 7; the lower connecting pipe 5 includes a lower pipe body 51 and a fixed pipe 52; the fixed pipe 52 is fixedly arranged on the bottom plate module 12, and the fixed pipe 52 includes a straight drainage pipe 521 and a three-way drainage pipe 522. The bottom of the upper connecting pipe 7 is connected to the top of the lower connecting pipe 5 through the butt pipe 6, and its top passes through the first through hole group and butts with the fixed pipe 52 of the upper module box. The drainage system of the present invention can effectively ensure accurate positioning by performing high-precision template positioning and pre-embedding fixed pipe fittings 52 during the modular prefabrication stage of the MIC structure. Through the straight-through drainage pipe fittings 521 and the three-way drainage pipe fittings 522 with water stop rings, it reduces the construction processes such as pre-embedding of casings, positioning with spring lines when installing pipes, and plugging of holes after installing pipes, thereby improving the pipe assembly rate and installation quality of the modular integrated building drainage system, saving construction costs, and solving the connection problem of the MIC modular integrated building drainage system to the greatest extent.

[0043] Example 1

[0044] In the first embodiment of the present invention, the module box 1 adopts a standardized design to ensure the compatibility and interchangeability between the various parts, which is convenient for large-scale production and assembly. It is produced and pre-installed in the factory, reducing the complexity and time of on-site construction; further, the length error of the module box 1 can be controlled within ±1.0mm, the width error can be controlled within ±0.5mm, and the thickness error can be controlled within ±0.5mm, so that the quality control of the module box 1 is better, and its factory-produced products can achieve millimeter-level construction accuracy.

[0045] The module box 1 includes a top plate module 11 and a bottom plate module 12; when installing the integrated building, the bottom plate module 12 of the module box 1 of this layer is accurately placed on the module box of the lower layer, and a steel mesh is laid and mortar is applied on the top of the top plate module 11 to form a sealed connection part, which is used to increase the connection strength with the upper module box and seal the gap between the two.

[0046] The top plate module 11 is provided with a first through hole group, which is used to connect to the drainage system of the upper module box through the upper connecting pipe 7; the opening diameter of the first through hole group is larger than the corresponding pipe diameter of the upper connecting pipe 7, which is convenient for operators to perform subsequent pipe adjustment, alignment and docking operations.

[0047] The bottom plate module 12 is provided with a lower connecting pipe 5 , and the lower connecting pipe 5 includes a lower pipe body 51 and a fixing pipe member 52 .

[0048] The fixed pipe 52 is pre-buried at a corresponding position on the base plate module 12. When the base plate module 12 is reinforced with a steel cage, the fixed pipe 52 is installed at a designated position through a limiting assembly and is connected to the base plate module 12 through subsequent pouring.

[0049] Figure 5-6 As shown, in the embodiment of the present invention, the fixed pipe fitting 52 includes a straight drainage pipe fitting 521 and a three-way drainage pipe fitting 522, both of which are made of PVC material and have thickened walls to resist the pressure generated during the concrete pouring process and subsequent environmental corrosion.

[0050] Furthermore, the straight-through drainage pipe fitting 521 and the three-way drainage pipe fitting 522 are respectively provided with annular fixing plates on the outer periphery of the bottom. The annular fixing plates are provided with positioning holes and are fixed to the mold clamping plate with fixing screws to avoid impact displacement during concrete pouring and ensure the positioning accuracy of the fixed pipe fitting 52.

[0051] Furthermore, the straight-through drainage pipe fitting 521 and the three-way drainage pipe fitting 522 are respectively provided with water stop rings, which can cooperate with the annular fixing plate to extend the water infiltration path several times, greatly increase the infiltration resistance, and make the periphery of the fixed pipe fitting 52 have good waterproof ability, avoiding the formation of gaps between the fixed pipe fitting 52 and the concrete after aging and deformation, resulting in water leakage and the like.

[0052] In the first embodiment of the present invention, a fixed pipe 52 is provided to replace the conventional pre-buried drainage steel casing in the floor slab, which can directly achieve upper and lower docking, effectively reducing the docking height between the fixed pipe 52 and the horizontally arranged drainage component in the room, and there is no need to set a switching pipe above the conventional pre-buried drainage steel casing in the floor slab to achieve the connection with the horizontally arranged drainage component in the room, thereby reducing the sinking height of the bathroom area in the module box 1, avoiding the irregular overall shape of the bottom of the module box 1 due to the sinking design, making the later lifting, transportation and placement very inconvenient, and increasing the transportation and placement cost.

[0053] The lower tube body 51 is inserted and fixed in the upper end of the fixed tube fitting 52, and is pre-installed together with the assembly accessories of the module box body 1. During installation, adhesive is applied to the outer circle of the pipe opening at the lower end of the lower tube body 51 and the inner circle of the upper end of the fixed tube fitting 52. After completion, the lower tube body 51 is inserted and fixed in the upper end of the fixed tube fitting 52. After the adhesive solidifies, a first adhesive layer is formed. The first adhesive layer seals and fixes the connection between the lower tube body 51 and the fixed tube fitting 52 to prevent shaking and leakage between the two.

[0054] The butt-joint pipe 6 is fixedly arranged on the top of the lower pipe body 51 to provide an installation opening for the upper connecting pipe 7 to be installed later; the butt-joint pipe 6 is pre-installed together with the lower pipe body 51 .

[0055] The upper connecting pipe 7 is fixed in the upper end of the docking pipe 6, and is completed in the later construction after the module box 1 is assembled. During installation, adhesive is applied to the outer circle of the upper and lower end pipe openings of the upper connecting pipe 7, and the pipe openings are inserted into the lower end pipe body of the fixed pipe fitting 52 provided on the upper module box after passing through the first through-hole group of the top plate module 11. After the adhesive solidifies, a second adhesive layer is formed. The second adhesive layer seals and fixes the connection between the upper connecting pipe 7 and the fixed pipe fitting 52 provided on the upper module box to prevent shaking and leakage between the two. When the upper end of the upper connecting pipe 7 is docked and the adhesive is solidified, the upper connecting pipe 7 is pushed upward to leave a docking space for the lower end pipe opening, and the lower end of the upper connecting pipe 7 is inserted into the upper end pipe body of the docking pipe 6. After the adhesive solidifies, a third adhesive layer is formed. The third adhesive layer seals and fixes the connection between the lower end pipe body of the upper connecting pipe 7 and the upper end of the docking pipe 6 to prevent shaking and leakage between the two.

[0056] In the embodiment of the present invention, by setting the opening diameter of the first through-hole group to be larger than the corresponding pipe diameter of the upper connecting pipe 7, the position of the fixed pipe fitting 52 provided on the upper module box can be easily observed at the bottom of the first through-hole group, which facilitates the upper connecting pipe 7 to be accurately connected. At the same time, it also provides a margin range for the installation errors of the upper and lower module boxes or the fixed pipe fitting 52 provided on the upper module box. Even if the fixed pipe fitting 52 provided on the upper module box is misaligned in the vertical direction, the deviation is not greater than the aperture range of the first through-hole group, and the upper connecting pipe 7 can be connected to the fixed pipe fitting 52 provided on the upper module box. At the same time, since the height space in the module box 1 is sufficient, the upper connecting pipe 7 and the lower connecting pipe 5 can be connected at a certain inclination angle. The inclination angle is within the allowable error and does not affect the connection effect and anti-leakage requirements, thereby solving the problem that the drainage riser cannot be connected when the casing is misaligned.

[0057] In the first embodiment of the present invention, when the drainage system is constructed and installed, in the stage of making the module box 1, the fixed pipe 52 is installed at the specified position through the limit assembly, and is connected to the bottom plate module 12 through later pouring; the steel frame of the anti-ridge 4 is tied to the steel cage of the top plate module 11, and the formwork is supported and poured together with the top plate module 11; after the concrete pouring operation of the module box 1 is completed, positioning drilling is performed in the anti-ridge, and after the drilling is completed, it is detected whether the center line of the first through-hole group coincides with the first through-hole group 5; after the drilling is completed, the upper connecting pipe 7 and the butt pipe 6 are completed in sequence. The module box 1 is assembled and other accessories of the drainage system are installed; after the module box 1 is transported to the designated point for installation, a steel mesh is laid on the top of the top plate module 11 and grout is applied to form a sealed connection. When applying the grout, the top of the grout surface is flush with the top of the anti-ridge 4, which can effectively prevent the concrete slurry from leaking into the first through-hole group and the lower connecting pipe 5, affecting the later assembly; after the hoisting operation of the upper module box is completed, the outer circles of the upper and lower ends of the upper connecting pipe 7 are coated with adhesive, and they are respectively inserted into the lower end pipe body of the fixed pipe fitting 52 provided on the upper module box, and into the butt-joint pipe 6 to complete the installation of the drainage system.

[0058] Embodiment 2

[0059] like Figure 1 As shown, in the second embodiment of the present invention, a positioning groove 2 is provided on the top plate module 11, and a counter-step 4 is constructed in the positioning groove 2; further, a positioning block 3 is provided at the corresponding position at the bottom of the bottom plate module 12, and the size of the positioning block 3 is adapted to the positioning groove 2, and the center points of the two coincide in the vertical direction, and the upper and lower module boxes are accurately positioned by embedding the positioning block 3 into the positioning groove 2; further, a limit frame is also provided at the bottom of the positioning block 3, and the position of the limit frame corresponds to the counter-step 4, and its size is larger than the counter-step 4, so as to prevent the upper module box from tilting and crushing the counter-step 4 during the hoisting process.

[0060] In the second embodiment of the present invention, when constructing and installing the drainage system, a steel mesh is laid on the top of the top plate module 11 and grout is applied to form a sealed connection. When applying the grout, the height of the anti-ridge 4 is blocked to prevent the concrete slurry from leaking into the first through-hole group and the lower connecting pipe 5, affecting the subsequent assembly; the upper module box is hoisted to align the positioning block 3 of the upper module box with the positioning groove 2, and the upper module box is lowered, so that the positioning block 3 is embedded in the positioning groove 2 to accurately position the upper and lower module boxes; and the installation work of the drainage system in other subsequent steps is carried out until completion.

[0061] In the second embodiment of the present invention, by providing matching positioning blocks 3 and positioning grooves 2, the positioning blocks 3 are embedded in the positioning grooves 2, so that the module box 1 can be quickly and accurately positioned when it is hoisted, avoiding the need to adjust various standard lines in the later stage, greatly speeding up the installation efficiency while ensuring accuracy. At the same time, the positioning block 3 also has a limit frame at the bottom, and the position of the limit frame corresponds to the anti-step 4, and its size is larger than the anti-step 4, so as to prevent the anti-step 4 from being crushed due to tilting during the hoisting of the upper module box, thereby ensuring the integrity of the module box 1 components during the installation process.

[0062] Embodiment 3

[0063] In a third embodiment of the present invention, a construction method for a drainage system applicable to a modular integrated building is also provided, comprising the following steps:

[0064] S100: manufacturing a straight drainage pipe fitting 521 and a three-way drainage pipe fitting 522 with a water stop ring and an annular fixing plate to replace the conventional pre-buried steel casing in the floor slab, thereby reducing the sinking height of the bathroom area in the module box 1;

[0065] S200: In the stage of manufacturing the module box 1, the fixed pipe 52 is installed at the specified position through the limit assembly, and is connected to the bottom plate module 12 as a whole through subsequent pouring;

[0066] S300: Tie the steel skeleton of the anti-ridge 4 and the positioning groove 2 on the steel cage of the top plate module 11, and perform formwork; tie the steel skeleton of the positioning block 3 and the limit frame on the steel cage of the bottom plate module 12, and perform formwork;

[0067] S400: Cast the module box 1, check whether each part reaches the standard, and perform corresponding trimming;

[0068] S500: Perform positioning drilling in the counter-ridge, and after the drilling is completed, check whether the center line of the first through-hole group coincides with the first through-hole group 5; after the drilling is completed, assemble the upper connecting pipe 7 and the butt-joint pipe 6 in sequence, and complete the installation of other accessories of the drainage system;

[0069] S600: After the module box 1 is transported to the designated point for installation, a steel mesh is laid and grout is applied on the top of the top plate module 11;

[0070] S700: hoisting the upper module box, aligning the positioning block 3 of the upper module box with the positioning groove 2, and lowering the upper module box, so that the positioning block 3 is embedded in the positioning groove 2 to accurately position the upper and lower module boxes;

[0071] S800: Apply adhesive to the outer circles of the upper and lower ends of the upper connecting pipe 7, insert the upper end into the lower end of the fixed pipe 52 provided on the upper module box, and insert the lower end into the butt joint 6 of the module box 1 on this layer, and complete the installation of the drainage system.

[0072] In the third embodiment of the present invention, the construction method adopts straight-through drainage pipe fittings 521 and three-way drainage pipe fittings 522 to replace the conventional pre-buried steel casing in the floor slab, so as to reduce the sinking height of the bathroom area in the module box 1; by making a counter-ridge 4 to prevent the concrete slurry from leaking into the first through-hole group and the lower connecting pipe 5, it solidifies with the surrounding concrete slurry to form a closed space, isolating the gap between the upper and lower module boxes, so that there is no need to seal the bottom hanging hole of the fixed pipe fitting 52 (the later suspended ceiling can solve the decoration problem); by high-precision pre-buried fixed pipe fittings 52 and pre-installed upper connecting pipes 7 and butt pipes 6 in the early stage, when performing on-site installation later, it is only necessary to apply adhesive to the outer rings of the upper and lower ends of the upper connecting pipe 7, insert the upper end into the lower end pipe body of the fixed pipe fitting 52 provided on the upper module box, and insert the lower end into the butt pipe 6 of the module box 1 of this layer, so that the installation of the drainage system can be quickly completed, thereby greatly improving the construction efficiency of the MIC modular integrated building.

[0073] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction method for a drainage system suitable for a modular integrated building, characterized in that: The steps include: S100: manufacturing a straight drainage pipe fitting (521) and a three-way drainage pipe fitting (522) with a water stop ring and an annular fixing plate to replace the conventional pre-buried steel casing in the floor slab, thereby reducing the sinking height of the bathroom area in the module box (1); S200: During the stage of manufacturing the module box (1), the fixed pipe (52) is installed at a specified position through a limit assembly, and connected to the base plate module (12) through subsequent pouring; S300: tying the steel frame of the anti-ridge (4) and the positioning groove (2) on the steel cage of the top plate module (11), and performing formwork; tying the steel frame of the positioning block (3) and the limit frame on the steel cage of the bottom plate module (12), and performing formwork; S400: Casting the module box (1), checking whether each part reaches the standard, and performing corresponding trimming; S500: Perform positioning drilling in the counter-ridge, and after the drilling is completed, check whether the center line of the first through-hole group coincides with the first through-hole group (5); after the drilling is completed, assemble the upper connecting pipe (7) and the butt pipe (6) in sequence, and complete the installation of other accessories of the drainage system; S600: After the module box (1) is transported to a designated location for installation, a steel mesh is laid and grout is applied on the top of the top plate module (11); S700: hoisting the upper module box, aligning the positioning block (3) of the upper module box with the positioning groove (2), and lowering the upper module box, so that the positioning block (3) is embedded in the positioning groove (2) to accurately position the upper and lower module boxes; S800: Apply adhesive to the outer rings of the upper and lower ends of the upper connecting pipe (7), insert the upper end into the lower end of the fixed pipe (52) provided on the upper module box, and insert the lower end into the butt joint (6) of the module box (1) on this layer, thereby completing the installation of the drainage system.

2. A drainage system suitable for modular integrated buildings, which is obtained by the construction method according to claim 1, characterized in that: include: A positioning groove (2) is provided on the top plate module (11), and a counter-ridge (4) is constructed in the positioning groove (2). The two are cast together with the top plate module (11) by tying a steel bar skeleton and supporting the formwork; A lower connecting pipe (5) is arranged on the base plate module (12), the lower connecting pipe (5) comprising a lower pipe body (51) and a fixing pipe fitting (52); the fixing pipe fitting (52) is pre-buried at a corresponding position on the base plate module (12); the lower pipe body (51) is inserted and fixed in the upper end of the fixing pipe fitting (52); A positioning block (3) is arranged at the bottom of the base plate module (12), the size of the positioning block (3) being adapted to the positioning groove (2), and a limit frame is arranged at the bottom thereof, and the two are cast together with the base plate module (12) by tying a steel bar skeleton and supporting a formwork; A first through hole group is formed in the anti-ridge (4), wherein the opening diameter of the first through hole group is larger than the corresponding pipe diameter of the upper connecting pipe (7); A sealed connection portion is formed by laying a steel mesh and applying grout on the top of the top plate module (11), so as to increase the connection strength with the upper module box body and seal and plug the gap between the two; A butt joint pipe (6) is sleeved and fixed on the upper end of the lower pipe body (51), which is pre-installed; The upper connecting pipe (7) is installed later, wherein the lower end of the upper connecting pipe (7) is inserted and fixed in the butt-jointed pipe (6), and the upper end passes through the first through-hole group and is inserted and fixed in the lower end pipe body of the fixed pipe fitting (52) provided on the upper module box body; A steel mesh is laid and mortar is applied on the top of the top plate module (11) to form a sealed connection. Due to the high blocking of the anti-ridge (4), the concrete slurry is prevented from leaking into the first through-hole group and the lower connecting pipe (5) to affect the later assembly. The upper module box is hoisted so that the positioning block (3) of the upper module box is aligned with the positioning groove (2), and the upper module box is lowered, so that the positioning block (3) is embedded in the positioning groove (2) to accurately position and install the upper and lower module boxes. The upper connecting pipe (7) is installed to quickly complete the installation of the drainage system between adjacent module boxes.

3. A drainage system suitable for modular integrated buildings according to claim 2, characterized in that: The fixed pipe fittings (52) include a straight drainage pipe fitting (521) and a three-way drainage pipe fitting (522), and an annular fixing plate is respectively provided on the outer periphery of the bottom, and a positioning hole is opened on the annular fixing plate.

4. A drainage system suitable for modular integrated buildings according to claim 3, characterized in that: The straight-through drainage pipe fitting (521) and the three-way drainage pipe fitting (522) are respectively provided with water stop rings on their pipe bodies.

5. A drainage system suitable for modular integrated buildings according to any one of claims 2 to 4, characterized in that: The size of the positioning block (3) is adapted to the positioning groove (2), and the center points of the two coincide in the vertical direction.

6. A drainage system suitable for modular integrated buildings according to any one of claims 2 to 4, characterized in that: The position of the limit frame corresponds to the anti-ridge (4), and its size is larger than the anti-ridge (4).

7. A drainage system suitable for modular integrated buildings according to any one of claims 2-4, characterized in that: A first adhesive layer is provided between the lower tube body (51) and the fixed tube member (52), and the first adhesive layer seals and secures the connection between the lower tube body (51) and the fixed tube member (52) to prevent shaking and leakage between the two.

8. A drainage system suitable for modular integrated buildings according to any one of claims 2 to 4, characterized in that: A second adhesive layer is provided between the upper end of the upper connecting pipe (7) and the fixed pipe fitting (52) provided on the upper module box body, and the second adhesive layer seals and secures the connection between the upper connecting pipe (7) and the fixed pipe fitting (52) provided on the upper module box body.

9. A drainage system suitable for modular integrated buildings according to any one of claims 2-4, characterized in that: A third adhesive layer is provided between the upper end of the upper connecting pipe (7) and the butt-joint pipe (6), and the third adhesive layer seals and glues the connection between the lower end of the upper connecting pipe (7) and the upper end of the butt-joint pipe (6).

10. A drainage system suitable for modular integrated buildings according to any one of claims 2-4, characterized in that: The fixing pipe (52) is made of PVC material.

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