Prefabricated box type bathroom floor slab

Abstract

The utility model discloses a prefabricated box type bathroom floor slab which comprises a structural floor slab, a floor drain drainage pipe, a urinal drainage pipe and a washing drainage pipe, and the structural floor slab comprises a prefabricated caisson and an upper bottom plate integrally formed with the prefabricated caisson; an overhead cover plate is arranged above the prefabricated caisson in a covering mode, and a floor drain drainage pipe, a urinal drainage pipe and a washing drainage pipe are all arranged on the prefabricated caisson; one ends of the floor drain drainage pipe, the urinal drainage pipe and the washing drainage pipe penetrate through one side wall of the prefabricated caisson to form a water outlet channel; the other ends of the floor drain drainage pipe, the urinal drainage pipe and the washing drainage pipe penetrate through the prefabricated caisson, and a drainage port is formed above the prefabricated caisson. A caisson waterproof layer and backfill materials are omitted, the technology of local sinking and waterproof concrete pouring floor slab and high-strength concrete cover plate overhead is adopted, the prefabrication period is shortened, waterproof materials are saved, and the overall weight of the prefabricated box type bathroom floor slab is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of housing construction engineering, in particular to a prefabricated box-type bathroom floor slab. Background Art

[0002] The bathrooms in modern houses are generally caisson-type. When building, the bathroom is usually sunk as a whole (35-40cm from the corresponding floor), poured with ordinary concrete, and the area inside the caisson is waterproofed. The horizontal drainage pipes of the bathroom are arranged in the caisson, and then backfilled with lightweight materials. The horizontal drainage pipes of the caisson-type bathroom do not need to pass through the floor slab, and can achieve drainage on the same floor. If rectification is required, the problem can be solved on this floor. The advantages are obvious.

[0003] However, the above construction technology still has significant defects and problems:

[0004] 1. The area inside the caisson needs to be waterproofed and protected, which wastes materials and takes a long construction period.

[0005] 2. Backfilling the overall sinking area will increase the amount of materials and additional loads, which will lead to a corresponding increase in the amount of structural materials or the strength grade, resulting in a waste of materials. In addition, backfilling is a masking process, and the use of tools and materials can easily cause the pipeline to deviate and create a risk of leakage.

[0006] 3. When the drainage pipeline in the caisson needs to be rectified, more manpower is required for cleaning, and it is easy to damage the pipes that do not need to be rectified.

[0007] 4. The overall backfill and closure is not conducive to the secondary drainage of the pipeline. Once the pipeline leaks severely, sewage will accumulate, causing sanitation and floor leakage problems. Utility Model Content

[0008] Based on this, the purpose of the utility model is to provide a prefabricated box-type bathroom floor, eliminate the caisson waterproof layer and backfill materials, and replace it with a partially sunken and waterproof concrete pouring floor, a high-strength concrete cover plate overhead process, shorten the prefabrication period, save waterproof materials and reduce the overall weight of the prefabricated box-type bathroom floor.

[0009] The purpose of the utility model is achieved through the following technical solutions:

[0010] A prefabricated box-type bathroom floor, comprising a structural floor, a floor drain pipe, a toilet drain pipe and a washbasin drain pipe, wherein the structural floor comprises a rectangular prefabricated caisson with a groove in the middle, and an upper base plate integrally formed with the prefabricated caisson and located on one side of the prefabricated caisson;

[0011] The upper cover of the prefabricated caisson is provided with an overhead cover plate, and the floor drain pipe, toilet drain pipe and washbasin drain pipe are all arranged on the prefabricated caisson; one end of the floor drain pipe, toilet drain pipe and washbasin drain pipe passes through a side wall of the prefabricated caisson to form a water outlet channel; the other ends of the floor drain pipe, toilet drain pipe and washbasin drain pipe pass through the prefabricated caisson to form a drainage outlet above the prefabricated caisson.

[0012] Furthermore, the floor drain pipe, toilet drain pipe and washbasin drain pipe all include a horizontal pipe and a vertical pipe. The horizontal pipe is horizontally arranged in the prefabricated caisson, and one end of the horizontal pipe penetrates a side wall of the prefabricated caisson to form a water outlet channel; the other end of the horizontal pipe is connected to one end of the vertical pipe, and the other end of the vertical pipe penetrates the prefabricated caisson to form a water inlet above the prefabricated caisson.

[0013] Furthermore, the overhead cover is provided with a floor drain, a toilet sewage outlet and a washbasin drain outlet, and the floor drain, toilet sewage outlet and washbasin drain outlet respectively correspond to the vertical pipes of the floor drain pipe, toilet drain pipe and washbasin drain pipe.

[0014] Furthermore, the contact surfaces between the overhead cover plate and the structural floor plate, the floor drain pipe and the floor drain outlet, the toilet drain pipe and the toilet sewage outlet, and the washroom drain pipe and the washroom drain outlet are all sealed by sealant.

[0015] Furthermore, the vertical pipes of the floor drain pipe and the washroom drain pipe are connected to the same horizontal pipe.

[0016] Furthermore, a placement step is provided at the upper end of the inner side wall of the prefabricated caisson, the upper base plate is placed on the placement step, and the upper surface of the upper base plate is flush with the upper surface of the overhead cover plate.

[0017] Further, the structural floor is provided with a steel cage protruding from the upper surface of the structural floor along its length direction;

[0018] The structural floor is provided with a plurality of post-cast connecting steel bars extending from the side along the side of the upper bottom plate relative to the prefabricated caisson and along the side of the upper bottom plate extending toward the prefabricated caisson. When the structural floor extends into the building wall, the post-cast connecting steel bars are cast-in-place fixed to the building wall through concrete;

[0019] The side wall of the prefabricated caisson relative to the upper base plate is provided with a plurality of bent anchor steel bar groups with both ends extending from the side wall, and the bent anchor steel bar groups are fixed to the structural floor slab by cast-in-place concrete.

[0020] Furthermore, the structural floor is prefabricated by pouring steel bars and waterproof concrete.

[0021] The beneficial effects of the utility model are:

[0022] 1. Pouring waterproof concrete slabs and eliminating the caisson waterproof layer can shorten the construction period and save the cost of waterproof materials.

[0023] 2. Canceling backfill materials and replacing them with a partial sinking and high-strength concrete cover slab overhead process can shorten the construction period and reduce the weight of the box.

[0024] 3. The high-strength concrete cover plate overhead process design is conducive to the secondary drainage of the pipeline and convenient for pipeline sewage cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall structure of the prefabricated box-type bathroom floor of the utility model;

[0026] Figure 2 A schematic diagram of the structure of the prefabricated caisson and upper base plate of the prefabricated box-type bathroom floor of the utility model;

[0027] Figure 3 A top view of the prefabricated box-type bathroom floor of the utility model;

[0028] Figure 4 for Figure 3 Schematic diagram of the AA section structure;

[0029] Figure numbers: 100-prefabricated box-type bathroom floor; 1-structural floor; 11-prefabricated caisson; 12-upper base plate; 13-overhead cover plate; 14-placing steps; 15-rebar cage; 16-post-cast connecting steel bars; 17-bent anchor steel bar group; 2-floor drain pipe; 3-toilet drain pipe; 4-washbasin drain pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figures 1 to 4 As shown, the embodiment of the utility model provides a prefabricated box-type bathroom floor 100, including a structural floor 1, a floor drain pipe 2, a toilet drain pipe 3 and a washbasin drain pipe 4. The structural floor 1 includes a rectangular prefabricated caisson 11 with a groove in the middle, and an upper base plate 12 integrally formed with the prefabricated caisson 11 and located on one side of the prefabricated caisson 11.

[0034] The upper cover of the prefabricated caisson 11 is provided with an overhead cover plate 13, and the floor drain pipe 2, toilet drain pipe 3 and washbasin drain pipe 4 are all arranged on the prefabricated caisson 11; one end of the floor drain pipe 2, toilet drain pipe 3 and washbasin drain pipe 4 passes through a side wall of the prefabricated caisson 11 and forms a water outlet channel; the other end of the floor drain pipe 2, toilet drain pipe 3 and washbasin drain pipe 4 passes through the prefabricated caisson 11 and forms a drainage outlet above the prefabricated caisson 11.

[0035] In this embodiment, the floor drain pipe 2, toilet drain pipe 3 and wash basin drain pipe 4 all include a horizontal pipe and a vertical pipe, wherein the vertical pipes of the floor drain pipe 2 and the wash basin drain pipe 4 are connected to the same horizontal pipe. The horizontal pipe is horizontally arranged in the prefabricated caisson 11, one end of the horizontal pipe penetrates a side wall of the prefabricated caisson 11 and forms a water outlet; the other end of the horizontal pipe is connected to one end of the vertical pipe, the other end of the vertical pipe penetrates the prefabricated caisson 11 and forms a water inlet above the prefabricated caisson 11. The overhead cover plate 13 is provided with a floor drain port, a toilet sewage outlet and a wash basin drain port, wherein the floor drain port, the toilet sewage outlet and the wash basin drain port correspond to the vertical pipes of the floor drain pipe 2, the toilet drain pipe 3 and the wash basin drain pipe 4 respectively.

[0036] In this embodiment, the overhead cover 13 is cast by high-strength concrete and steel bars, and the contact surfaces between the overhead cover 13 and the structural floor 1, the floor drain pipe 2 and the floor drain outlet, the toilet drain pipe 3 and the toilet sewage outlet, and the washroom drain pipe 4 and the washroom drain outlet are all sealed by sealant to prevent water leakage.

[0037] In this embodiment, a placement step 14 is provided at the upper end of the inner wall of the prefabricated caisson 11 , and the upper base plate 12 is placed on the placement step 14 . The upper surface of the upper base plate 12 is flush with the upper surface of the overhead cover plate 13 .

[0038] In this embodiment, the structural floor 1 is provided with a steel cage 15 protruding from the upper surface of the structural floor 1 along its length direction;

[0039] The structural floor 1 is provided with a plurality of post-cast connecting steel bars 16 extending from the side along the side of the upper bottom plate 12 relative to the prefabricated caisson 11 and along the side of the upper bottom plate 12 extending toward the prefabricated caisson 11. When the structural floor 1 extends into the building wall, the post-cast connecting steel bars 16 are cast-in-place fixed to the building wall through concrete;

[0040] The side wall of the prefabricated caisson 11 opposite to the upper base plate 12 is provided with a plurality of bent anchor steel bar groups 17 with both ends extending from the side wall. The bent anchor steel bar groups 17 are fixed to the structural floor slab 1 by cast-in-place concrete.

[0041] In this embodiment, the structural floor 1 is prefabricated by pouring steel bars and waterproof concrete.

[0042] In this embodiment, when prefabricating the box-type bathroom floor 100, according to the requirements of the drawings, the outer mold is installed, the steel bars and the embedded parts of the drainage pipe are arranged, and then the inner mold is installed, and then the waterproof concrete is poured into the mold. After the concrete solidifies, the outer mold and the inner mold are removed to obtain the structural floor 1, which includes a prefabricated caisson 11 and an upper base plate 12; the waterproof concrete contains a waterproofing agent, which can reduce the water absorption and permeability of the concrete, delay the penetration of corrosive media such as chloride ions into the concrete structure, reduce the risk of concrete leakage and steel bar corrosion, and the waterproof concrete produced by the waterproofing agent has an anti-seepage grade of P20 or above. A secondary drainage hole is provided at the lower part of the side wall adjacent to the vertical wash drain pipe 4 to prevent water accumulation in the prefabricated caisson 11.

[0043] In this embodiment, the prefabricated caisson 11 is also required to be subjected to a water injection leakage test. If no leakage occurs within 24 hours after the water is injected to a height of 50 mm, it is considered qualified.

[0044] In this embodiment, a water pressure test is required when arranging the drainage pipeline in the prefabricated caisson 11 .

[0045] In this embodiment, when prefabricating the box-type bathroom floor 100, the prefabricated caisson 11 is covered with a high-strength waterproof concrete overhead cover 13, and then the gaps between the high-strength waterproof concrete overhead cover 13 are filled and sealed with sealant.

[0046] In this embodiment, the high-strength waterproof concrete overhead cover plate 13 has a thickness of 30 to 35 mm and a size of 600 mm × 600 mm. It is prefabricated with high-strength concrete with a strength grade of C100 or above and contains PET modified fibers, which can significantly improve the bending, tensile strength and durability of concrete.

[0047] The utility model provides a prefabricated box-type bathroom floor slab, which eliminates the caisson waterproof layer and backfill materials and replaces them with a partially sunken and waterproof concrete poured floor slab. It utilizes a high-strength concrete cover plate overhead process to shorten the prefabrication period, save waterproof materials and reduce the overall weight of the prefabricated box-type bathroom floor slab, which is beneficial to the secondary drainage of pipelines and convenient for pipeline sewage cleaning and maintenance.

[0048] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A prefabricated box-type bathroom floor, including a structural floor, a floor drain pipe, a toilet drain pipe and a washbasin drain pipe, characterized in that: The structural floor comprises a rectangular prefabricated caisson with a groove in the middle, and an upper base plate integrally formed with the prefabricated caisson and located on one side of the prefabricated caisson; The upper cover of the prefabricated caisson is provided with an overhead cover plate, and the floor drain pipe, toilet drain pipe and washbasin drain pipe are all arranged on the prefabricated caisson; one end of the floor drain pipe, toilet drain pipe and washbasin drain pipe passes through a side wall of the prefabricated caisson to form a water outlet channel; the other ends of the floor drain pipe, toilet drain pipe and washbasin drain pipe pass through the prefabricated caisson to form a drainage outlet above the prefabricated caisson.

2. The prefabricated box-type bathroom floor according to claim 1 is characterized in that: The floor drain pipe, toilet drain pipe and washbasin drain pipe all include a horizontal pipe and a vertical pipe. The horizontal pipe is horizontally arranged in the prefabricated caisson, one end of the horizontal pipe penetrates a side wall of the prefabricated caisson and forms a water outlet channel; the other end of the horizontal pipe is connected to one end of the vertical pipe, the other end of the vertical pipe penetrates the prefabricated caisson and forms a water inlet above the prefabricated caisson.

3. The prefabricated box-type bathroom floor according to claim 1 is characterized in that: The overhead cover is provided with a floor drain, a toilet sewage outlet and a washbasin drainage outlet, and the floor drain, toilet sewage outlet and washbasin drainage outlet correspond to the vertical pipes of the floor drain pipe, toilet drain pipe and washbasin drainage pipe respectively.

4. The prefabricated box-type bathroom floor according to claim 3 is characterized in that: The contact surfaces between the overhead cover plate and the structural floor plate, the floor drain pipe and the floor drain outlet, the toilet drain pipe and the toilet sewage outlet, and the washroom drain pipe and the washroom drain outlet are all sealed by sealant.

5. The prefabricated box-type bathroom floor according to claim 2 is characterized in that: The vertical pipes of the floor drain pipe and the washroom drain pipe are connected to the same horizontal pipe.

6. The prefabricated box-type bathroom floor according to claim 1, characterized in that: A placement step is provided at the upper end of the inner side wall of the prefabricated caisson, the upper base plate is placed on the placement step, and the upper surface of the upper base plate is flush with the upper surface of the overhead cover plate.

7. The prefabricated box-type bathroom floor according to claim 1 is characterized in that: The structural floor is provided with a steel cage protruding from the upper surface of the structural floor along its length direction; The structural floor is provided with a plurality of post-cast connecting steel bars extending from the side along the side of the upper bottom plate relative to the prefabricated caisson and along the side of the upper bottom plate extending toward the prefabricated caisson. When the structural floor extends into the building wall, the post-cast connecting steel bars are cast-in-place fixed to the building wall through concrete; The side wall of the prefabricated caisson relative to the upper base plate is provided with a plurality of bent anchor steel bar groups with both ends extending from the side wall, and the bent anchor steel bar groups are fixed to the structural floor slab by cast-in-place concrete.

8. The prefabricated box-type bathroom floor according to any one of claims 1 to 7, characterized in that: The structural floor is prefabricated by pouring steel bars and waterproof concrete.

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