Functional toilet module and connecting structure thereof

CN224620827UActive Publication Date: 2026-08-11GUANGDONG CONSTR ENG DESIGN INST CO +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2026-08-11

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Abstract

This utility model relates to a functional bathroom module, including an interior decoration structure, sanitary ware, and a closed box as a non-load-bearing structure. The interior decoration structure and sanitary ware are housed inside the closed box, which is a reinforced concrete structure. The entire bathroom module is a prefabricated module. The closed box includes a top slab, a bottom slab, and side walls. The bottom slab contains a recessed slab section, and the bottom slab and the recessed slab section are integrally prefabricated using high-strength concrete. The utility model also relates to a connection structure for the functional bathroom module. This bathroom module is purely functional, not load-bearing, greatly simplifying the structure of the bathroom module and belonging to the field of prefabricated building structure technology.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated building structure technology, specifically to a functional toilet module and its connection structure. Background Technology

[0002] Precast buildings refer to a structural form in which building components (such as wall panels, floor slabs, beams and columns) are standardized and manufactured in a factory, and then transported to the site for assembly. Its main characteristics include: (1) Industrialized production: improves construction efficiency, reduces on-site wet work, and shortens the construction period. (2) Quality control: the factory environment ensures the precision of components and reduces the quality fluctuations of traditional construction. (3) Environmental protection and energy saving: reduces construction waste, reduces material waste, and conforms to the trend of green building.

[0003] Bathroom modules are an important unit in prefabricated buildings. However, existing bathroom modules have the following drawbacks:

[0004] (1) Existing bathroom modules are mainly designed with steel structures, and concrete is rarely used as a design material.

[0005] (2) Existing bathroom modules are all a combination of structural and functional modules. The module design includes load-bearing components (load-bearing beams), which makes the connection of load-bearing components of bathroom modules complicated and affects the use and promotion of bathroom modules.

[0006] (3) Most of the existing bathroom modules use side-discharge drainage pipes, which seriously affects the layout of drainage pipes and increases the complexity of inspection and subsequent maintenance.

[0007] (4) The existing bathroom module does not take into account the countermeasures in case of failures such as water seepage in the bottom plate, which has a significant adverse impact on the lower module.

[0008] (5) The existing bathroom modules do not consider the connection design with the cast-in-place structure, and do not consider the height difference between the bathroom and other rooms in accordance with residential design habits.

[0009] The aforementioned shortcomings of existing toilet modules hinder their widespread adoption. Therefore, it is necessary to improve the structure and connection methods of toilet modules. Utility Model Content

[0010] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a functional bathroom module that integrates non-load-bearing structural components, decoration and equipment into one, with a more streamlined overall structure.

[0011] Another objective of this utility model is to provide a connection structure for a functional bathroom module.

[0012] To achieve the above objectives, the present invention adopts the following technical solution:

[0013] A functional bathroom module includes an interior decoration structure, sanitary ware, and a closed box as a non-load-bearing structure. The interior decoration structure and sanitary ware are set inside the closed box, which is a reinforced concrete structure. The bathroom module as a whole is a prefabricated module. The closed box includes a top slab, a bottom slab, and side walls. The bottom slab has a sunken slab section. The bottom slab and the sunken slab section are prefabricated as a whole using high-strength concrete.

[0014] As a preferred embodiment, the side wall includes an outer partition wall and an inner partition wall, or the side wall includes an inner partition wall; the outer partition wall faces the exterior of the building and has windows; one of the inner partition walls has a door.

[0015] As a preferred option, the decoration structure includes a bathroom ceiling, which is installed below the ceiling slab.

[0016] As a preferred embodiment, the sanitary ware includes a toilet, the drain pipe of which is arranged in the recessed slab section; the recessed slab section is cubic in shape.

[0017] A connection structure for a functional toilet module is disclosed, used to install a functional toilet module. The load-bearing frame of the building includes load-bearing beams, and the load-bearing beams connected to the toilet modules are composite beams. Between adjacent toilet modules, the composite beams form a ring-shaped composite beam module. The outer shape of the composite beam module corresponds to the outer shape of the ring-shaped side wall. The composite beam module is located on the lower toilet module, and the upper toilet module is placed on the composite beam module. The sunken slab portion of the upper toilet module is located inside the composite beam module. Concrete is used to fill the space between the upper toilet module, the lower toilet module, and the composite beam module.

[0018] As a preferred embodiment, the composite beam includes a lower precast section and an upper cast-in-place section. The reinforcing bars of the composite beam are embedded in the precast section, and the upper part of the reinforcing bars extends from the precast section and is covered by the cast-in-place section. A mortar layer is provided between the lower end face of the precast section and the lower bathroom module, and a mortar layer is provided between the upper end face of the cast-in-place section and the upper bathroom module.

[0019] As a preferred embodiment, the precast portion of the composite beam has an outwardly protruding corbel on its outer side; the floor slab includes a precast composite slab and a cast-in-place floor slab, the precast composite slab is placed on the corbel, the reinforcing bars of the precast composite slab extend laterally, the reinforcing bars of the precast composite slab connect with the reinforcing bars of the upwardly protruding precast portion of the composite beam, and are covered by the cast-in-place portion of the composite beam; the cast-in-place floor slab is cast on the precast composite slab, and the end of the cast-in-place floor slab connects with the cast-in-place portion of the composite beam and is integrally cast.

[0020] As a preferred option, on the same floor, the upper surface of the cast-in-place floor slab is flush with the upper surface of the bottom slab of the enclosed box.

[0021] As a preferred option, the distance between the sunken slab section of the upper toilet module and the top plate of the lower toilet module is 100-150mm.

[0022] As a preferred embodiment, the upper bathroom module has an upper installation space within its recessed slab section, and the drain pipe of the upper bathroom module is located within this upper installation space. A lower installation space is provided between the upper bathroom module, the lower bathroom module, and the composite beam module. The top plate of the lower bathroom module is equipped with a bathroom heater, and the upper part of the bathroom heater is located within the lower installation space.

[0023] The principle of this utility model is as follows: A closed-type functional bathroom module is designed, integrating a non-load-bearing box structure, decorative structure, and sanitary ware into one unit. Because the closed box is a non-load-bearing structure, the overall structure is simplified, easy to design, manufacture, and install, avoiding the impact of the bathroom module on structural stress calculations and structural complexity. A high-strength integrated base plate is used, fully considering the layout of drainage pipes and waterproofing effects. Concrete is filled between modules to prevent water seepage from the upper module from affecting the lower module, while ensuring connections between modules, between modules and composite beams, and between the bathroom module and the floor slab. Both the composite beams and the floor slab adopt a combination of precast and cast-in-place structures, ensuring both load-bearing capacity and tight connections between structures.

[0024] This utility model has the following advantages:

[0025] 1. The bathroom module is a functional module, not a load-bearing module, which greatly simplifies the structure of the bathroom module. At the same time, it can achieve the effect of prefabrication of non-load-bearing structural components, interior decoration and sanitary ware, which greatly reduces the workload on the construction site and improves construction efficiency.

[0026] 2. The bathroom module base plate adopts a high-strength integrated base plate design, using high-strength concrete (such as UHPC), which significantly reduces the thickness of the base plate; the integrated design and manufacturing ensures waterproof effect, while the integrated sunken slab allows for more convenient placement of drainage pipes, avoiding the complexity of inspection and maintenance caused by the side-discharge of drainage pipes in previous designs.

[0027] 3. The bathroom modules are made of reinforced concrete, which is cheaper and has better fire resistance.

[0028] 4. When constructing the load-bearing frame of the building, some load-bearing beams are reserved as installation positions for the bathroom modules. The composite beam structure of these load-bearing beams, which combines prefabricated and cast-in-place materials, not only ensures the load-bearing requirements but also the tightness of the structural connections. This significantly simplifies the construction and decoration time of the most complex and integrated part of the building design, the bathroom, shortens the construction cycle, and reduces the construction difficulty.

[0029] 5. The composite beams use additional corbels to ensure a reliable horizontal connection with the floor slab, while also solving the height difference problem between the traditional bathroom module and the living room.

[0030] 6. There is a certain gap between the bottom plate and the sunken slab of the upper bathroom module and the top plate of the lower bathroom module. This not only prevents water seepage from the upper bathroom module from affecting the lower bathroom module, but also ensures the connection between modules and between modules and composite beams. At the same time, it leaves space for the placement of bathroom equipment such as bathroom heaters. Furthermore, the ceiling and the ceiling plate can be integrated for fabrication, ensuring a clear bathroom space and improving user comfort. Attached Figure Description

[0031] Figure 1 It is a 3D view of a single bathroom module.

[0032] Figure 2 This is the main view of a single bathroom module.

[0033] Figure 3 This is the rear view of a single bathroom module.

[0034] Figure 4 This is the right view of a single bathroom module.

[0035] Figure 5 This is the left view of a single bathroom module.

[0036] Figure 6 This is a breakdown diagram showing the connection between the upper and lower bathroom modules.

[0037] Figure 7 It is a 3D diagram showing the connection between the upper and lower bathroom modules.

[0038] Figure 8 This is a 3D view of the base plate.

[0039] Figure 9 This is a schematic diagram showing the connection between the bathroom module and the surrounding structure.

[0040] Figure 10 This is a schematic diagram of the connection method between the bathroom module, composite beam, and floor slab.

[0041] Figure 11 This is a floor plan showing the layout of the bathroom modules within the building.

[0042] Figure 12 This is a breakdown diagram showing the connection between the renovated bathroom module and the composite beam.

[0043] Figure 13 This is a structural diagram of a bathroom module.

[0044] In the diagram, 1-top slab, 2-bottom slab, 3-external partition wall, 4-internal partition wall, 5-sunken slab section, 6-door, 7-window, 8-bathroom ceiling, 9-composite beam, 10-precast part of composite beam, 11-cast-in-place part of composite beam, 12-reinforcement of composite beam, 13-mortar layer, 14-corbel, 15-floor slab, 16-precast composite slab, 17-cast-in-place floor slab, 18-reinforcement of precast composite slab, 19-reinforcement of cast-in-place floor slab, 20-upper installation space, 21-lower installation space, 22-bathroom module. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to specific embodiments.

[0046] Example 1

[0047] Figure 1-5 As shown, a functional bathroom module includes an interior decoration structure, sanitary ware, and a closed box as a non-load-bearing structure. The interior decoration structure and sanitary ware are housed inside the closed box, which is a reinforced concrete structure. The entire bathroom module is a prefabricated unit. The closed box includes a top slab, a bottom slab, and side walls. The bottom slab contains a recessed slab section. The bottom slab and the recessed slab section are prefabricated as a whole using high-strength concrete. Compared to ordinary concrete bottom slabs, the thickness of the high-strength concrete bottom slab can be further reduced, and because it is manufactured as a single unit in the factory along with the recessed slab section, it offers better waterproofing.

[0048] The side walls consist of external partition walls and internal partition walls; the external partition walls face outwards and have windows; one of the internal partition walls has a door. The external partition walls are thicker, and the internal partition walls are thinner.

[0049] The structural design includes a bathroom ceiling, which is installed below the main ceiling panel. Integrating the main ceiling panel with the bathroom ceiling ensures a clear ceiling, avoiding the cramped feeling often associated with low ceilings in traditional bathrooms, and providing users with a more comfortable bathroom experience.

[0050] The sanitary ware includes a toilet, and the toilet's drain pipe is located in the recessed slab section; the recessed slab section is cubic in shape. Placing the drain pipe in the recessed slab section accommodates the toilet's drain pipe layout and avoids the difficulties in maintenance caused by side-discharge drain pipes.

[0051] The structural components include ceilings, floors, wall tiles, mirror cabinets, base cabinets, wet and dry separation doors, shower heads, and faucets. Sanitary ware includes toilets, sinks, and bathtubs. Equipment includes bathroom heaters, towel dryers, mini washing machines, and mini hand dryers. The bathroom module can include all the necessary functions of a bathroom, all prefabricated, eliminating the need for on-site installation, reducing on-site work, and improving on-site construction efficiency.

[0052] The bathroom modules are prefabricated in the factory using the following method: A high-strength concrete base slab is constructed, with half of the slab forming a sunken section. Next, formwork is erected in the factory to fabricate the upper components of the bathroom module, including one external partition wall, three internal partition walls, and a roof slab, which are then connected to the base slab. Following this, interior decoration is carried out, including the laying of pipes and electrical wiring, installation of doors and windows, and installation of sanitary ware and equipment. After prefabrication, the modules are transported to the construction site.

[0053] Example 2

[0054] In this embodiment, the side wall includes an inner partition wall; one of the inner partition walls has a door. In this embodiment, the bathroom module is located in the middle of the house.

[0055] The parts not mentioned in this embodiment are the same as in Embodiment 1.

[0056] Example 3

[0057] A connection structure for a functional toilet module is provided for installing a functional toilet module according to Embodiment 1. The load-bearing frame of the building includes load-bearing beams, and the load-bearing beams connected to the toilet modules are composite beams. Between adjacent toilet modules, the composite beams form a ring-shaped composite beam module. The outer shape of the composite beam module corresponds to the outer shape of the ring-shaped side wall. The composite beam module is located on the lower toilet module, and the upper toilet module is placed on the composite beam module. The sunken slab portion of the upper toilet module is located inside the composite beam module. Concrete is filled between the upper toilet module, the lower toilet module, and the composite beam module.

[0058] The composite beam consists of a lower precast part and an upper cast-in-place part. The reinforcing bars of the composite beam are embedded in the precast part, and the upper part of the reinforcing bars extends out of the precast part and is covered by the cast-in-place part. A mortar layer is provided between the lower end face of the precast part and the lower bathroom module, and a mortar layer is provided between the upper end face of the cast-in-place part and the upper bathroom module.

[0059] The precast portion of the composite beam has outwardly projecting corbels on its outer side. The floor slab includes a precast composite slab and a cast-in-place slab. The precast composite slab is placed on the corbels, and the reinforcing bars of the precast composite slab extend laterally. The reinforcing bars of the precast composite slab connect with the reinforcing bars of the upwardly projecting precast portion of the composite beam and are covered by the cast-in-place portion of the composite beam. The cast-in-place slab is cast on the precast composite slab, and the ends of the cast-in-place slab connect with the cast-in-place portion of the composite beam and are integrally cast. Corbels are only required for composite beams that need to connect to floor slabs.

[0060] On the same floor, the upper surface of the cast-in-place floor slab is flush with the upper surface of the bottom slab of the enclosed box.

[0061] The distance between the recessed slab of the upper bathroom module and the top plate of the lower bathroom module is 100-150mm. Because there is a certain space between the upper and lower bathroom modules, this space can be reserved for the installation of a bathroom heater / ventilation unit, while ensuring that the lower bathroom module is not affected by water seepage from the upper bathroom module.

[0062] The upper bathroom module has a recessed slab section with space for upper installation. The drain pipe of the upper bathroom module is located in the upper installation space. There is a lower installation space between the upper bathroom module, the lower bathroom module and the composite beam module. The top plate of the lower bathroom module is equipped with a bathroom heater, and the upper part of the bathroom heater is located in the lower installation space.

[0063] The building design includes provisions for composite beam modules to serve as load-bearing beams, which will be used to house the bathroom modules.

[0064] like Figure 10 As shown, the on-site construction method is as follows: The building foundation is erected, with the first-floor bathroom modules installed on it. A load-bearing frame, including load-bearing columns, beams, and shear walls, is then constructed. The load-bearing beams connecting to the bathroom modules utilize a composite beam structure. First, a mortar layer is laid on top of the first-floor bathroom modules for flexible connection. Then, the prefabricated portion of the composite beam is constructed. Composite beams that do not require floor slab installation do not have corbels; those requiring floor slab installation have pre-installed corbels on the outer side of the prefabricated portion. Prefabricated composite slabs are placed on the corbels, and the reinforcing bars of the prefabricated composite slabs are connected to the upward-extending reinforcing bars of the prefabricated portion. The cast-in-place portion of the composite beam and the cast-in-place floor slab are then poured. After laying a mortar layer on the cast-in-place portion of the composite beam for flexible connection, the second-floor bathroom modules are placed on the mortar layer, and concrete is poured between the first and second-floor bathroom modules. Grouting holes are located in the composite beam. If a bathroom heater is to be installed, a space for the second-floor installation is reserved using formwork. The second-floor load-bearing frame is then constructed, and this process is repeated until the building is complete.

[0065] The connection structure between the prefabricated part of the composite beam and the load-bearing frame is the same as that of existing technology.

[0066] The bathroom module of this utility model does not have a strong connection (steel reinforcement connection) with the load-bearing structure. The module itself can be prefabricated in the factory, including the internal decoration structure, sanitary ware, equipment, etc. The weight of the upper bathroom module only needs to be borne by the lower composite beam module.

[0067] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A functional toilet module, characterized in that, It includes the decoration structure, sanitary ware, and a closed box as a non-load-bearing structure. The decoration structure and sanitary ware are set inside the closed box, which is a reinforced concrete structure. The bathroom module is a prefabricated module. The closed box includes a top slab, a bottom slab, and side walls. The bottom slab has a sunken slab section. The bottom slab and the sunken slab section are prefabricated as a whole using high-strength concrete. The interior design includes a bathroom ceiling, which is installed below the ceiling slab. Sanitary ware includes toilets, and the toilet's drain pipe is located in the recessed slab section; The caisson lowering plate section is cubic in shape.

2. A functional toilet module according to claim 1, characterized in that: The side walls include external partition walls and internal partition walls, or the side walls include internal partition walls; the external partition walls face the exterior of the building and have windows; one of the internal partition walls has a door.

3. A connection structure for a functional toilet module, used to install the functional toilet module as described in claim 1 or 2, characterized in that: The building's load-bearing frame includes load-bearing beams, and the load-bearing beams connected to the toilet modules are composite beams. Between adjacent toilet modules, the composite beams form a ring-shaped composite beam module. The outer shape of the composite beam module corresponds to the outer shape of the ring-shaped side wall. The composite beam module is located on the lower toilet module, and the upper toilet module is placed on the composite beam module. The sunken slab portion of the upper toilet module is located inside the composite beam module. The space between the upper toilet module, the lower toilet module, and the composite beam module is filled with concrete.

4. The connection structure of a functional toilet module according to claim 3, characterized in that: The composite beam consists of a lower precast part and an upper cast-in-place part. The reinforcing bars of the composite beam are embedded in the precast part, and the upper part of the reinforcing bars extends out of the precast part and is covered by the cast-in-place part. A mortar layer is provided between the lower end face of the precast part and the lower bathroom module, and a mortar layer is provided between the upper end face of the cast-in-place part and the upper bathroom module.

5. The connection structure of a functional toilet module according to claim 4, characterized in that: The precast portion of the composite beam has outwardly protruding corbels on its outer side; the floor slab includes a precast composite slab and a cast-in-place floor slab. The precast composite slab is placed on the corbels, and the reinforcing bars of the precast composite slab extend laterally. The reinforcing bars of the precast composite slab connect with the reinforcing bars of the upwardly protruding precast portion of the composite beam and are covered by the cast-in-place portion of the composite beam; the cast-in-place floor slab is cast on the precast composite slab, and the ends of the cast-in-place floor slab connect with the cast-in-place portion of the composite beam and are integrally cast.

6. The connection structure of a functional bathroom module according to claim 5, characterized in that: On the same floor, the upper surface of the cast-in-place floor slab is flush with the upper surface of the bottom slab of the enclosed box.

7. The connection structure of a functional toilet module according to claim 3, characterized in that: The distance between the sunken slab of the upper bathroom module and the top plate of the lower bathroom module is 100-150mm.

8. The connection structure of a functional bathroom module according to claim 3, characterized in that: The upper bathroom module has a recessed slab section with space for upper installation. The drain pipe of the upper bathroom module is located in the upper installation space. There is a lower installation space between the upper bathroom module, the lower bathroom module and the composite beam module. The top plate of the lower bathroom module is equipped with a bathroom heater, and the upper part of the bathroom heater is located in the lower installation space.