A modular bathroom system

Abstract

The present application relates to the technical field of assembled bathroom, and more particularly to an assembled bathroom system, comprising a chassis module, a frame module, a suspended ceiling module, a wall module, a door module, a wash area module and a toilet module; the frame module comprises a top frame body, a bottom frame body and a plurality of side frame bodies in a hexahedral layout. Its beneficial effects are that the detachable connection of the various functional modules and the frame module in a hexahedral layout realizes on-site rapid assembly, greatly improves the installation efficiency and shortens the construction period; the sealed connection of the wall module, the wash area module, the suspended ceiling module and the chassis module, and the close fit of the wash area module and the wall module can effectively prevent water leakage and seepage, and enhance the overall sealing performance and use reliability; the detachable structure facilitates the independent replacement of a single faulty functional module, reduces the maintenance cost and prolongs the service life of the system, and the modular design can realize function customization according to the demand adjustment configuration.

Description

Technical Field

[0001] This invention relates to the field of prefabricated toilet technology, and more particularly to a prefabricated toilet system. Background Technology

[0002] Prefabricated toilets are independent sanitary units formed by a waterproof chassis, wall panels, and ceiling, combined with various functional sanitary ware. They offer basic functions such as washing and toileting, or any combination of other functions. These prefabricated toilets are independent structures, not fixedly connected to the walls, floors, or ceilings of the building, and are suitable for brick-concrete, reinforced concrete, steel, and brick-wood structures. All components are manufactured in a factory and assembled on-site, facilitating the industrialization of housing and construction. Prefabricated toilets on trains are fixedly connected to the train frame, placing higher demands on their production, transportation, installation, and maintenance.

[0003] In existing technologies, core functions such as toileting, bathing, and washing are often forcibly integrated into a bulky modular unit. During production, these ultra-large modules require customized molds, which not only increases equipment procurement costs but also makes it difficult to adapt to diverse apartment layouts due to the fixed module structure, severely limiting their application scenarios. During transportation, the ultra-large size of the modules not only places special demands on transport vehicles, increasing logistics costs, but also makes them highly susceptible to collision damage during loading and unloading due to their structural complexity, further increasing delivery costs. During installation, the large overall weight and high positioning accuracy requirements often necessitate the coordinated operation of multiple professionals, and the dimensional matching requirements of the installation space are stringent; even slight deviations can lead to installation failure, significantly extending the construction period. Furthermore, in later use, if a functional component within the module (such as the toilet or showerhead) malfunctions, the entire module must be disassembled for repair, which is not only cumbersome and costly but may also cause irreversible damage to the overall structure of the bathroom, creating a "trouble-all" dilemma for the entire industry.

[0004] Therefore, there is an urgent need for a prefabricated toilet system that can be reasonably divided into multiple modules. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a prefabricated toilet system, which solves the technical problem that the unreasonable modular design of existing prefabricated toilets causes inconvenience in production, transportation, installation and maintenance.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] This invention provides a prefabricated bathroom system, including a chassis module, a frame module, a ceiling module, a wall module, a door module, a wash area module, and a toilet module. The frame module includes a top frame, a bottom frame, and multiple side frames arranged in a hexagonal layout. The chassis module is detachably installed on the bottom frame, the ceiling module is detachably installed on the top frame, and the door module, wash area module, wall module, and toilet module are detachably installed on the multiple side frames. The wash area module, wall module, toilet module, chassis module, and ceiling module are located inside the frame module. The wall module and wash area module are sealed to the ceiling module and chassis module, and the wash area module is tightly fitted to the wall module. The wall module has three wall panels and, together with the wash area module, door module, chassis module, and ceiling module, encloses the internal space of the prefabricated bathroom.

[0010] Optionally, the frame module also includes multiple columns, multiple beams and multiple connecting rods, which are detachably connected to form multiple side frames, a top frame and a bottom frame, and are suitable for the detachable installation of prefabricated bathroom functional modules; the multiple side frames include a first side frame, a second side frame, a third side frame and a fourth side frame that are sequentially arranged on the side of the frame module and connected end to end.

[0011] Optionally, the crossbeam includes a connecting crossbeam connected to the door module. The connecting crossbeam has an installation part extending along the length of the connecting crossbeam. The installation part includes a slide groove and an installation slot. The door module includes a door panel, a hanging wheel assembly fixedly connected to the door panel, and a drive device connected in the installation slot. The door panel is slidably hung on the slide groove through the hanging wheel assembly. The drive device is drivenly connected to the hanging wheel assembly to drive the door panel to slide along the slide groove.

[0012] Optionally, the three wall panels are detachably connected to the connecting rods on the first side frame, the second side frame, and the third side frame in sequence, and adjacent wall panels are spliced ​​together by tongue and groove; the tongue and groove includes a tenon and a mortise connected in an L-shape, and both the tenon and the mortise and groove have at least two square grooves, and the corresponding square grooves are connected by square strips; the wall panel includes a panel layer, a filling layer and a back panel layer from the inside to the outside, the square grooves are located on the filling layer, and the filling layer is a waterproof layer.

[0013] Optionally, the chassis module includes a shock-absorbing layer and a tray assembly; both the shock-absorbing layer and the tray assembly are embedded in the bottom frame, and the tray assembly is stacked on the shock-absorbing layer. The height of the shock-absorbing layer is lower than the height of the bottom frame. The tray assembly is a cylindrical shape with the opening facing upwards. The tray assembly protrudes from the bottom frame, and the tray assembly has a corresponding notch for the door module.

[0014] Optionally, multiple locking fasteners are fixed to the bottom periphery of the wall module. The locking fasteners are in the shape of an inverted mountain, and the two sides of the locking fasteners protrude outward relative to the middle. Multiple locking members are fixed to the top periphery of the tray assembly. The locking members are in the shape of a mountain, and the two sides of the locking members are recessed inward relative to the middle. Both the locking fasteners and the locking members are provided with multiple connecting holes. One locking member corresponds to one locking fastener. When the locking fasteners and locking members are engaged, the two sides of the locking fasteners and the middle part of the locking members are on the same plane, and the two sides of the locking members and the middle part of the locking fasteners are on the same plane. The multiple connecting holes on the middle part of the locking members and the middle part of the locking fasteners coincide.

[0015] Optionally, the ceiling module includes a wall-top connecting frame, a top inspection cover, and a hydraulic rod; the wall-top connecting frame is sleeved on the outside of the wall module and the wash area module, and an inspection hole is provided in the middle of the wall-top connecting frame; the top inspection cover is located in the inspection hole and hinged to the wall-top connecting frame; one end of the hydraulic rod is rotatably connected to the upper surface of the top inspection cover, and the other end of the hydraulic rod is fixedly connected to the connecting rod of the top frame to drive the top inspection cover to rotate.

[0016] Optionally, the top inspection cover is recessed inward in the middle, with the bottom end of the top inspection cover being the first end face and the top end face being the second end face, and an exhaust channel is provided between the first end face and the second end face.

[0017] Optionally, the wash area module includes a vanity mirror assembly, a cabinet assembly, a fixing assembly, and auxiliary fixing assemblies. The vanity mirror assembly is connected above the cabinet assembly, and both the cabinet assembly and the vanity mirror assembly are fixedly connected to the train frame via multiple sets of fixing assemblies. The cabinet assembly includes support legs, a storage cabinet, and a basin assembly. The support legs are located at the bottom of the storage cabinet and are fixed to the chassis module. The basin assembly is fitted onto the top of the storage cabinet, and both the storage cabinet and the basin assembly are fixedly connected to the train frame via multiple sets of fixing assemblies. The auxiliary fixing assemblies include a connecting part connected to the basin assembly and two fixing parts detachably connected to the connecting rods of the first side frame and the third side frame, with the two fixing parts respectively connected to both ends of the connecting part.

[0018] Optionally, the toilet module includes a toilet, a U-shaped grab bar, an L-shaped grab bar, a folding care panel, and multiple hooks. The toilet is detachably connected to the connecting rod of the third side frame, the U-shaped grab bar is detachably connected to the connecting rod of the first side frame, the L-shaped grab bar is detachably connected to the connecting rod of the second side frame, and the folding care panel is rotatably connected to the connecting rod of the second side frame. The folding care panel is located above the L-shaped grab bar, and when the folding care panel is unfolded, one end of the folding care panel can overlap the basin assembly.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this invention are as follows: This invention provides a prefabricated bathroom system, comprising a chassis module, a frame module, a ceiling module, a wall module, a door module, a wash area module, and a toilet module. The frame module includes a top frame, a bottom frame, and multiple side frames arranged in a hexagonal layout. The chassis module is detachably installed on the bottom frame, the ceiling module is detachably installed on the top frame, and the door module, wash area module, wall module, and toilet module are detachably installed on the multiple side frames. The wash area module, wall module, toilet module, chassis module, and ceiling module are located inside the frame module. The wall module and wash area module are sealed to the ceiling module and chassis module, and the wash area module is tightly fitted to the wall module. The wall module has three wall panels and, together with the wash area module, door module, chassis module, and ceiling module, encloses the internal space of the prefabricated bathroom. Compared to existing technologies, the detachable connection between the functional modules and the hexahedral frame modules enables factory prefabrication and rapid on-site assembly, reducing on-site wet work, significantly improving installation efficiency, and shortening the construction cycle. The sealed connection between the wall modules, washroom modules, ceiling modules, and chassis modules, as well as the tight fit between the washroom modules and wall modules, effectively prevents water leakage and enhances overall sealing and reliability. The integration of each functional module within the frame module results in a compact and rational layout, optimizing space utilization. The detachable structure facilitates independent replacement of individual faulty functional modules, reducing maintenance costs and extending system lifespan. Furthermore, the modular design allows for customized configuration based on specific needs. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the prefabricated toilet system according to Embodiment 1 of the present invention;

[0022] Figure 2 for Figure 1 The diagram shows a structural schematic of a frame module in a prefabricated bathroom system.

[0023] Figure 3 for Figure 1 The side view shown is of the door module and connecting beam in the prefabricated bathroom system.

[0024] Figure 4 for Figure 1 A schematic diagram showing the connection between two adjacent walls in a prefabricated bathroom system;

[0025] Figure 5 for Figure 1 The diagram shows the structure of the ceiling module, wash area module, wall module, chassis module, and toilet module in the prefabricated bathroom system.

[0026] Figure 6 for Figure 1A side view showing the connection between the wall modules and the chassis modules in a prefabricated bathroom system;

[0027] Figure 7 for Figure 6 The diagram shows the structure of the locking mechanism in the prefabricated bathroom system.

[0028] Figure 8 for Figure 6 The diagram shows the structure of the locking components in the prefabricated bathroom system.

[0029] Figure 9 for Figure 1 The diagram shows the structural connection between the wash area module and the chassis module in the prefabricated toilet system.

[0030] Figure 10 for Figure 1 The diagram shows the structural schematics of the ceiling module, wash area module, wall module, and chassis module in the prefabricated bathroom system.

[0031] Figure 11 for Figure 1 The rear view of the wash area module in the prefabricated toilet system is shown.

[0032] Figure 12 Exploded view of the installation structure in the prefabricated bathroom system of Embodiment 2 of the present invention;

[0033] Figure 13 for Figure 12 The diagram shows the installation structure of the prefabricated bathroom system.

[0034] Explanation of reference numerals in the attached figures

[0035] 1: Chassis module; 11: Shock-absorbing layer; 12: Pallet assembly; 13: Locking components;

[0036] 2: Frame module; 21: Top frame; 22: Bottom frame; 23: Side frame; 231: First side frame; 232: Second side frame; 233: Third side frame; 234: Fourth side frame; 24: Column; 25: Horizontal beam; 251: Connecting horizontal beam; 2511: Slide groove; 2512: Mounting groove; 26: Connecting rod;

[0037] 3: Ceiling module; 31: Wall-to-ceiling connection frame; 32: Top inspection cover; 321: Exhaust duct; 33: Hydraulic rod;

[0038] 4: Wall module; 41: Tenon; 42: Mortise and tenon; 43: Square groove; 44: Sealing strip; 45: Panel layer; 46: Filling layer; 47: Back panel layer; 48: Locking fastener;

[0039] 5: Door module; 51: Door panel; 52: Hanging wheel assembly; 53: Drive unit;

[0040] 6: Washbasin area module; 61: Dressing mirror assembly; 62: Cabinet assembly; 621: Support legs; 622: Storage cabinet; 623: Basin assembly; 63: Fixing assembly; 64: Auxiliary fixing assembly; 641: Connecting part; 642: Fixing part;

[0041] 7: Toilet module; 71: Toilet;

[0042] 8: Installation structure; 81: Universal interface; 82: First rectangular insert; 83: Second rectangular insert; 84: Compensation component. Detailed Implementation

[0043] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0045] This invention is specifically applied to train scene design. Through modular disassembly and standardized prefabrication, it achieves efficient integration and rapid installation of core functional components for the toilet. This prefabricated toilet system prefabricates and pre-assembles key components such as chassis module 1, frame module 2, ceiling module 3, wall module 4, door module 5, wash area module 6, and toilet module 7 in the factory. On-site installation only requires fixing frame module 2 to the train frame and connecting pipelines, significantly shortening the construction cycle for in-plant assembly or later modifications and reducing the impact on train production schedules. Furthermore, the detachable structure of each functional module facilitates independent replacement of individual faulty modules, reducing maintenance costs and extending system lifespan. The modular design also allows for customized configuration based on requirements.

[0046] Of course, this invention is not limited to use on trains, but can also be used in outdoor, building, bus, and RV scenarios where there is demand. It is quick to install and has low maintenance costs.

[0047] Example 1:

[0048] Reference Figures 1 to 11This embodiment proposes a prefabricated toilet system for use on trains. Specifically, the prefabricated toilet system of this embodiment includes a chassis module 1, a frame module 2, a ceiling module 3, a wall module 4, a door module 5, a wash area module 6, and a toilet module 7, as detailed below.

[0049] In this embodiment, the frame module 2 includes a top frame 21, a bottom frame 22, and multiple side frames 23 arranged in a hexahedral layout. The chassis module 1 is detachably mounted on the bottom frame 22, the ceiling module 3 is detachably mounted on the top frame 21, and the door module 5, wash area module 6, wall module 4, and toilet module 7 are detachably mounted on the multiple side frames 23. The wash area module 6, wall module 4, toilet module 7, chassis module 1, and ceiling module 3 are located inside the frame module 2. The wall module 4 and wash area module 6 are sealed to the ceiling module 3 and chassis module 1, and the wash area module 6 is tightly fitted to the wall module 4. The wall module 4 has three wall panels and, together with the wash area module 6, door module 5, chassis module 1, and ceiling module 3, encloses the internal space of the prefabricated bathroom.

[0050] Specifically, refer to Figure 1 The prefabricated toilet system has an overall hexahedral shape, with frame module 2 enclosing wash area module 6, wall module 4, toilet module 7, chassis module 1, and ceiling module 3. Frame module 2 is fixedly connected to the train frame. Frame module 2 includes a hexahedral top frame 21, bottom frame 22, and multiple side frames 23. Chassis module 1 is detachably installed on bottom frame 22, ceiling module 3 is detachably installed on top frame 21, and door module 5, wash area module 6, wall module 4, and toilet module 7 are detachably installed on multiple side frames 23. The detachable structure of each functional module facilitates independent replacement of individual faulty functional modules. Moreover, prefabrication in the factory and direct assembly on site saves installation time. The configuration of each functional module can also be adjusted according to needs to achieve functional customization.

[0051] Furthermore, the wall module 4 and washroom module 6 are sealed to the ceiling module 3 and chassis module 1, and the washroom module 6 is tightly fitted to the wall module 4. The wall module 4 has three wall panels, with the door module 5 located on one of them. Therefore, the washroom module 6, door module 5, and wall module 4 together form the side enclosure of the prefabricated bathroom system. Thus, the wall module 4, washroom module 6, door module 5, chassis module 1, and ceiling module 3 enclose the internal space of the prefabricated bathroom. In this embodiment, the sealing connection uses EPDM rubber airbag sealing strips at the joints of each functional module for sealing and noise reduction. EPDM rubber airbag sealing strips have excellent weather resistance, chemical resistance, good elasticity, and good flexibility, maintaining elasticity at different temperatures and adapting to changes in the shape and size of various sealing parts. The airbag structure can automatically expand under pressure to fill the gaps, achieving a good sealing effect, while also providing cushioning and shock absorption, making it suitable for environments with vibration.

[0052] In summary, compared to existing technologies, the detachable connection between the functional modules and the hexahedral frame module 2 enables factory prefabrication and rapid on-site assembly, reducing on-site wet work, significantly improving installation efficiency, and shortening the construction cycle. The sealed connection between the wall module 4, washroom module 6, ceiling module 3, and chassis module 1, as well as the tight fit between the washroom module 6 and wall module 4, effectively prevents water leakage and enhances overall sealing and reliability. The integrated functional modules within the frame module 2 create a compact and rational layout, optimizing space utilization. The detachable structure facilitates independent replacement of individual faulty functional modules, reducing maintenance costs and extending system lifespan. Furthermore, the modular design allows for customized configuration based on specific needs.

[0053] Furthermore, the frame module 2 also includes multiple uprights 24, multiple crossbeams 25, and multiple connecting rods 26. These uprights 24, crossbeams 25, and connecting rods 26 are detachably connected to form multiple side frames 23, a top frame 21, and a bottom frame 22, and are suitable for the detachable installation of the prefabricated bathroom functional module. The multiple side frames 23 include a first side frame 231, a second side frame 232, a third side frame 232, and a fourth side frame 234, which are sequentially arranged on the side of the frame module 2 and connected end-to-end.

[0054] Specifically, the side frame 23 is formed by multiple columns 24, multiple beams 25, and multiple connecting rods 26. The top frame 21 and the bottom frame 22 are formed by multiple beams 25 and multiple connecting rods 26. The columns 24 are profiles extending vertically, the beams 25 are profiles extending horizontally, and the connecting rods 26 are also profiles. The connecting rods 26 are detachably connected to multiple side frames 23, top frames 21, and bottom frames 22 depending on their connection positions. Moreover, the connecting rods 26 are designed to be detachably installed according to the different functional modules of the prefabricated bathroom. The multiple connecting rods 26 can be combined flexibly, making it easy to quickly assemble, adjust, or disassemble according to actual needs, simplifying the installation process, adapting to the assembly needs of different scenarios, improving construction efficiency, meeting diverse bathroom layout needs, and enhancing the universal adaptability of the frame module 2. The multiple side frames 23 include a first side frame 231, a second side frame 232, a third side frame 232 and a fourth side frame 234 arranged sequentially along the side of the frame module 2.

[0055] Furthermore, frame module 2 is made of aluminum alloy as the main load-bearing structure of the prefabricated bathroom system. It is constructed by combining industrial aluminum profiles with various accessories. Aluminum alloy is lightweight with a density of 2.7g / cm³. 3 With a yield strength ≥200MPa, approximately one-third the density of steel (7.85, yield strength ≥235MPa), it boasts high strength and corrosion resistance. This not only reduces the overall weight of the prefabricated toilet system, meeting the lightweight requirements of trains, but also ensures structural stability and reliability under long-term use and train operation vibrations. The industrial aluminum profiles are highly standardized, allowing for flexible assembly into frames of different shapes and sizes using various accessories to adapt to diverse carriage layouts. Furthermore, frame module 2 can be assembled into various toilets as needed without separate molds. Simultaneously, frame module 2 also serves as a support for wall finishes and various functional modules, with pre-reserved multi-functional slots providing installation conditions for connecting various equipment.

[0056] Furthermore, the crossbeam 25 includes a connecting crossbeam 251 connected to the door module 5. The connecting crossbeam 251 has a mounting portion extending along its length. The mounting portion includes a slide groove 2511 and a mounting slot 2512. The door module 5 includes a door panel 51, a hanging wheel assembly 52 fixedly connected to the door panel 51, and a drive device 53 connected in the mounting slot 2512. The door panel 51 is slidably hung on the slide groove 2511 via the hanging wheel assembly 52. ​​The drive device 53 is drively connected to the hanging wheel assembly 52 to drive the door panel 51 to slide along the slide groove 2511.

[0057] Specifically, the crossbeam 25 connected to the door in the top frame 21 is a connecting crossbeam 251. On the side of the connecting crossbeam 251 connected to the door, there is a mounting part extending along the length of the crossbeam 25. The mounting part includes a sliding groove 2511 and a mounting slot 2512 spaced vertically. The door panel 51 is slidably hooked onto the sliding groove 2511 via a hanging wheel assembly 52. ​​A drive device 53 is snapped into and fixed within the mounting slot 2512, and the drive device 53 is connected to the pulley block for transmission. This mounting slot 2512, extending along its length, serves as a universal interface, compatible with mainstream track components on the market. Furthermore, this snap-fit ​​connection method facilitates installation and disassembly, aiding in maintenance. Preferably, the snap-fit ​​bolts are used for fixing, enhancing the structural stability.

[0058] Therefore, the built-in universal mounting slot 2512 is compatible with various track accessories, and the snap-fit ​​fixing method simplifies the disassembly and maintenance process. At the same time, the bolt reinforcement further enhances the structural reliability. This design fundamentally solves the problem of easy fatigue of the connectors in traditional modular sliding doors in vibration environments, extends the service life, and fully realizes the "one material for multiple uses" in industrial assembly.

[0059] Furthermore, the three wall panels are detachably connected sequentially to the connecting rods 26 on the first side frame 231, the second side frame 232, and the third side frame 232, with adjacent wall panels being spliced ​​together via tongue and groove joints. The tongue and groove joint includes an L-shaped tenon 41 and a mortise 42, each with at least two square grooves 43, which are interlocked by square strips 44. The wall panel comprises, from the inside out, a panel layer 45, a filling layer 46, and a back panel layer 47. The square grooves 43 are located on the filling layer 46, which is a waterproof layer.

[0060] Specifically, three wall panels are sequentially and detachably fixed to the inner sides of the first side frame 231, the second side frame 232, and the third side frame 232. The tongue and groove joint is a type of mortise and tenon structure. A square groove 43 and a square strip 44 are also provided on the mortise and tenon structure for engagement, enabling rapid splicing and positioning of adjacent wall panels. After splicing, the square strip 44 not only limits the position of the spliced ​​wall panels but also acts as a waterproof material, preventing moisture from passing through the square groove 43 and reducing the risk of leakage at the joint surface. While the tongue and groove joint itself has positioning and waterproofing functions, the square groove 43 and square strip 44 further improve the positioning and waterproofing performance of the wall panel connection surface. The square groove 43 extends along the height of the wall panel on the splicing surface. When two square grooves 43 of adjacent wall panels are joined, the two square strips 44 precisely lock the square groove 43 in place, thus fixing the adjacent wall panels together.

[0061] To further enhance the waterproof performance of the wall panel, it comprises a panel layer 45, a filler layer 46, and a back panel layer 47 arranged from the inside out, with the filler layer 46 being made of waterproof material. The wall panel is designed as a 20-30mm thick eco-friendly aluminum composite panel, double-sided eco-friendly aluminum, environmentally friendly and recyclable, aligning with current green development concepts and reducing environmental burden. It reduces the weight of the wall panel while improving the bathroom's insulation effect, reducing energy consumption, and providing cushioning protection in the event of impact. The panel layer 45 uses an antibacterial nano-coating process, which is environmentally friendly, self-cleaning, wear-resistant, corrosion-resistant, antibacterial, and provides thermal insulation. The surface layer offers diverse finishes and strong adaptability to different spaces, while being waterproof and moisture-proof, enhancing the bathroom's aesthetics and protecting the internal structure from moisture erosion. The antibacterial nano-coating gives the wall panel self-cleaning, wear-resistant, corrosion-resistant, and antibacterial functions. Its superhydrophobic and superoleophilic properties make it difficult for stains to adhere, easily achieving self-cleaning. The high-hardness coating enhances wear resistance. It effectively isolates external corrosion, maintaining good condition in the humid and chemical-contacting bathroom environment. Inhibit bacterial growth, maintain a hygienic environment in the restroom, and provide passengers with a healthier environment.

[0062] Furthermore, the chassis module 1 includes a shock-absorbing layer 11 and a tray assembly 12. Both the shock-absorbing layer 11 and the tray assembly 12 are embedded within the bottom frame 22, and the tray assembly 12 is stacked on top of the shock-absorbing layer 11. The height of the shock-absorbing layer 11 is lower than the height of the bottom frame 22. The tray assembly 12 is a cylindrical shape with its opening facing upwards. The tray assembly 12 protrudes from the bottom frame 22, and the tray assembly 12 has a corresponding notch for the door module 5.

[0063] Specifically, the chassis module 1 includes a split shock-absorbing layer 11 and a tray assembly 12. Both the shock-absorbing layer 11 and the tray assembly 12 are embedded within the bottom frame 22, with the tray assembly 12 stacked on top of the shock-absorbing layer 11. When modifying the piping according to site requirements, the tray module can be directly removed, modified according to preset requirements, and the waterproof structure installed before being reinstalled into the bottom frame. There is no need to drill holes, cut, or waterproof the entire frame module 2. The shock-absorbing layer 11 and the tray assembly 12 adopt a detachable and quick-installation method, facilitating the handling and installation of individual components and avoiding the problems of excessive weight and volume associated with an integrated chassis, thus improving installation efficiency. The shock-absorbing layer 11 absorbs vibrations during train operation, while the tray assembly 12 has good waterproof performance. Therefore, the cylindrical tray assembly 12 prevents water leakage from the prefabricated toilet. The tray assembly 12 protrudes from the bottom frame 22 for easy user access, and the tray assembly 12 has corresponding notches for the door module 5, providing pre-drilled holes for its installation.

[0064] Furthermore, all chassis modules 1 are made of ABS, which is relatively lightweight and easy to transport and install. ABS itself does not absorb water, and after special processing, its waterproof performance is even more outstanding. The entire chassis is made of ABS material, which can effectively prevent water from penetrating into the bottom structure of the vehicle body, avoiding problems such as rusting of metal parts and structural damage caused by water accumulation. After installation, it can work better with frame module 2 and other components. The surface is smooth and does not easily attract dirt, making it very easy to clean. In daily use, simply wiping with a damp cloth or washing with ordinary detergent is enough to keep the chassis clean and tidy. If chassis module 1 is partially damaged, due to the repairability of its material, it can be repaired by welding or special glue, reducing maintenance costs.

[0065] Furthermore, multiple locking fasteners 48 are fixed to the bottom periphery of the wall module 4. The locking fasteners 48 are in the shape of an inverted mountain, and the two sides of the locking fasteners 48 protrude outwards relative to the center. Multiple locking members 13 are fixed to the top periphery of the tray assembly 12. The locking members 13 are in the shape of a mountain, and the two sides of the locking members 13 are recessed inwards relative to the center. Both the locking fasteners 48 and the locking members 13 are provided with multiple connecting holes. One locking member 13 corresponds to one locking fastener 48. When the locking fasteners 48 and the locking members 13 are engaged, the two sides of the locking fasteners 48 and the middle part of the locking members 13 are on the same plane, and the two sides of the locking members 13 and the middle part of the locking fasteners 48 are on the same plane. The multiple connecting holes on the middle part of the locking members 13 and the middle part of the locking fasteners 48 coincide.

[0066] Specifically, the locking fastener 48 is in the shape of an inverted mountain, with both sides of the inverted mountain-shaped locking fastener 48 protruding outwards, while the locking member 13 is in the shape of a mountain, with the middle part of the mountain-shaped locking member 13 recessed inwards. Thus, when the locking fastener 48 and the locking member 13 are engaged, the two sides of the locking fastener 48 and the middle part of the locking member 13 are in the same plane, and the middle part of the locking fastener 48 and the two sides of the locking member 13 are in the same plane. Moreover, both the locking fastener 48 and the locking member 13 are provided with multiple connecting holes. The locking fastener 48 and the locking member 13 are connected to the bottom of the wall module 4 and the top of the tray assembly 12 respectively through their respective connecting holes. When the locking fastener 48 and the locking member 13 are engaged, the connecting holes on the middle parts of the locking fastener 48 and the locking member 13 correspond to each other. The connecting holes facilitate the positioning of the locking fastener 48 and the locking member 13 and also improve the connection strength of the locking fastener 48 and the locking member 13.

[0067] Furthermore, the ceiling module 3 includes a wall-top connecting frame 31, a top inspection cover 32, and a hydraulic rod 33. The wall-top connecting frame 31 is sleeved on the outside of the wall module 4 and the washroom module 6, and an inspection hole is provided in the middle of the wall-top connecting frame 31. The top inspection cover 32 is located in the inspection hole and is hinged to the wall-top connecting frame 31. One end of the hydraulic rod 33 is rotatably connected to the upper surface of the top inspection cover 32, and the other end of the hydraulic rod 33 is fixedly connected to the connecting rod 26 of the top frame 21 to drive the top inspection cover 32 to rotate.

[0068] Specifically, the ceiling module 3 is located at the top of the prefabricated bathroom. The bottom end of the wall-top connecting frame 31 is sleeved on the outside of the wall module 4 and the wash area module 6, and the wall-top connecting frame 31 is fixed to the top of the wall module 4 and the wash area module 6 with screws. An inspection hole is provided in the middle of the wall-top connecting frame 31. The top inspection cover 32 is hinged to the wall-top connecting frame 31. One end of the hydraulic rod 33 is rotatably connected to the top inspection cover 32, and the other end of the hydraulic rod 33 is fixed to the connecting rod 26 of the top frame 21 by welding, screwing, or snapping. The extension and retraction of the hydraulic rod 33 drives the rotation of the top inspection cover 32. The top inspection cover 32 uses a combination of a concealed hinge (fatigue life ≥100,000 cycles) and an electric push rod (stroke 0-300mm, thrust 500N), supporting stepless adjustment from 0-90°. The deformation is controlled to ≤1.8mm under a uniformly distributed load of 150kg / m². Ceiling module 3 serves as an equipment access panel in the prefabricated bathroom ceiling, facilitating the repair and routine maintenance of equipment and components such as air conditioners, exhaust fans, and lighting fixtures. During normal use, it should be kept closed to maintain the overall aesthetics of the prefabricated bathroom. When maintenance is required, it can be quickly opened, allowing staff to access the ceiling space and improving maintenance efficiency. Ceiling module 3 also integrates lighting fixtures and other facilities.

[0069] Furthermore, the top inspection cover 32 is recessed inward in the middle, the bottom of the top inspection cover 32 is the first end face, the top of the top inspection cover 32 is the second end face, and an exhaust channel 321 is provided between the first end face and the second end face.

[0070] Specifically, the middle part of the top inspection cover 32 is recessed inward, thereby forming a first end face at the bottom of the top inspection cover 32 and a second end face at the top of the top inspection cover 32. Multiple exhaust channels 321 are provided between the first end face and the second end face. Specifically, the exhaust channels 321 are hidden linear exhaust vents.

[0071] Furthermore, the washroom module 6 includes a vanity mirror assembly 61, a cabinet assembly 62, a fixing component 63, and an auxiliary fixing component 64. The vanity mirror assembly 61 is connected above the cabinet assembly 62, and both the cabinet assembly 62 and the vanity mirror assembly 61 are fixedly connected to the train frame via multiple sets of fixing components 63. The cabinet assembly 62 includes support legs 621, a storage cabinet 622, and a basin assembly 623. The support legs 621 are located at the bottom of the storage cabinet 622 and are fixed to the chassis module 1. The basin assembly 623 is fitted onto the top of the storage cabinet 622, and both the storage cabinet 622 and the basin assembly 623 are fixedly connected to the train frame via multiple sets of fixing components 63. The auxiliary fixing component 64 includes a connecting part 641 connected to the basin assembly 623 and two fixing parts 642 detachably connected to the connecting rods 26 of the first side frame 231 and the third side frame 232. The two fixing parts 642 are respectively connected to both ends of the connecting part 641.

[0072] Specifically, the modularly designed vanity mirror assembly 61, auxiliary fixing assembly 64, fixing assembly 63, and cabinet assembly 62 are all prefabricated in the factory and then transported to the train carriage for installation. During installation in the train carriage, the vanity mirror assembly 61 is connected above the cabinet assembly 62, and both the cabinet assembly 62 and the vanity mirror assembly 61 are fixedly connected to the train frame from the rear of the cabinet assembly 62 via multiple sets of fixing assemblies 63. The fixing assembly 63 includes a fastener and connecting bolts. The fastener has three mutually perpendicular connecting surfaces: a first connecting surface, a second connecting surface, and a third connecting surface. The first and second connecting surfaces are connected to the vanity mirror assembly 61, and the third connecting surface is connected to the train frame via connecting bolts. The fastener in the cabinet assembly 62 is located inside the cabinet assembly 62, thus the first and second connecting surfaces are connected to the cabinet assembly 62, and the third connecting surface penetrates the cabinet assembly 62 and connects to the train frame. Support legs 621 are located at the bottom of storage cabinet 622 and are fixed to chassis module 1. Support legs 621 include a column 24 and a sleeve. The column 24 is threadedly connected to the sleeve and fixedly connected to the floor of the vehicle body. The sleeve is detachably connected to the bottom of the first storage cabinet 622. The height of the sleeve is adjusted to level and raise / lower the first storage cabinet 622 to accommodate different vehicle models. A washbasin assembly 623 is fitted onto the top of storage cabinet 622. A connecting part 641 and two fixing parts 642 are integrally formed and located on the same horizontal plane. The connecting part 641 is attached to and fixedly connected to the washbasin assembly 623. The two fixing parts 642 are attached to and fixedly fixed to the corresponding two wall panels on the frame module, thereby connecting the wash area module 6 to the frame module 2.

[0073] Furthermore, the main load-bearing components of the washroom module 6 are all made of aluminum alloy, connected by fixing components 63 and support legs 621 to ensure stability during train operation vibrations. The basin component 623 is made of nano-alloy material, and the storage cabinet 622 is made of 15mm thick carbon fiber composite board. The modular design facilitates production, transportation, and installation. Each module can be produced independently and assembled on-site, significantly improving installation efficiency. In later maintenance, individual modules can be replaced or repaired, reducing maintenance costs and time.

[0074] Furthermore, the toilet module 7 includes a toilet 71, a U-shaped grab bar, an L-shaped grab bar, a folding care panel, and multiple hooks. The toilet 71 is detachably connected to the connecting rod 26 of the third side frame 232. The U-shaped grab bar is detachably connected to the connecting rod 26 of the first side frame 231. The L-shaped grab bar is detachably connected to the connecting rod 26 of the second side frame 232. The folding care panel is rotatably connected to the connecting rod 26 of the second side frame 232, and the folding care panel is located above the L-shaped grab bar. When the folding care panel is unfolded, one end of the folding care panel can be attached to the basin assembly 623.

[0075] Specifically, the toilet module 7 comprises various components within the prefabricated bathroom, including a toilet 71, a U-shaped grab bar, an L-shaped grab bar, a folding care panel, and multiple hooks. The toilet 71 is detachably connected to the connecting rod 26 of the third side frame 232. Preferably, the toilet 71 can be replaced with a squat toilet to accommodate different user needs. The folding care panel is located above the L-shaped grab bar. When the folding care panel is folded up, the L-shaped grab bar surrounds the edge of the folding care panel. When the folding care panel is unfolded, one end of the folding care panel can overlap the basin assembly 623, allowing the folding care panel to bear a certain weight. The U-shaped grab bar passes through the fixing part 642 and is detachably connected to the frame module 2.

[0076] Example 2:

[0077] Reference Figure 12 and Figure 13 The difference between this embodiment and embodiment 1 is that an installation structure 8 for the functional components of the prefabricated bathroom is provided inside the prefabricated bathroom, as detailed below.

[0078] In this embodiment, the installation structure 8 for the functional components of the prefabricated bathroom includes multiple universal interfaces 81 opened on the inside of the prefabricated bathroom and rectangular inserts disposed at one end of the functional components. The universal interfaces 81 are disposed on the wall module 4 and the wash area module 6, and are rectangular holes of fixed size. The functional components include coat hooks, emergency buttons, folding handrails, smoke detectors, etc., and are categorized into ordinary functional components and miniature functional components based on their size. Ordinary functional components include emergency buttons, folding handrails, and smoke detectors, while miniature functional components include elongated coat hooks. The rectangular inserts include a first rectangular insert 82 connected to one end of the ordinary functional component and a second rectangular insert 83 connected to one end of the miniature functional component. Ordinary functional components can be inserted into the rectangular holes through the first rectangular insert 82 at one end, thereby enabling the installation of different functional components and the replacement of functional components as needed.

[0079] Since the first rectangular plug 82 exceeds the size of the miniature functional component, it is inconvenient to directly use a uniform first rectangular plug 82. Therefore, a smaller second rectangular plug 83 is provided at one end of the miniature functional component. The second rectangular plug 83 matches the size of the miniature functional component. The second rectangular plug 83 is connected to the universal interface 81 by fitting a compensation piece 84. The compensation piece 84 has a cuboid structure with a rectangular cavity. The rectangular cavity of the compensation piece 84 is similar in shape to the second rectangular plug 83. Thus, the second rectangular plug 83 can be snapped into the compensation piece 84, and the size of the compensation piece 84 is similar to that of the universal interface 81, thereby realizing the installation of the miniature functional component.

[0080] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0083] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A prefabricated toilet system, characterized in that: It includes a chassis module (1), a frame module (2), a ceiling module (3), a wall module (4), a door module (5), a wash area module (6), and a toilet module (7); The frame module (2) includes a top frame (21), a bottom frame (22), and multiple side frames (23) arranged in a hexahedral layout. The chassis module (1) is detachably installed on the bottom frame (22), the ceiling module (3) is detachably installed on the top frame (21), and the door module (5), the wash area module (6), the wall module (4), and the toilet module (7) are detachably installed on the multiple side frames (23). The wash area module (6), the wall module (4), the toilet module (7), the chassis module (1), and the ceiling module (3) are located inside the frame module (2). The wall module (4) and the wash area module (6) are sealed to the ceiling module (3) and the chassis module (1), and the wash area module (6) is tightly fitted to the wall module (4). The wall module (4) has three wall panels and together with the wash area module (6), the door module (5), the chassis module (1) and the ceiling module (3) form the internal space of the prefabricated bathroom. The chassis module (1) includes a shock-absorbing layer (11) and a pallet assembly (12). The shock-absorbing layer (11) and the tray assembly (12) are both embedded in the bottom frame (22), and the tray assembly (12) is stacked on the shock-absorbing layer (11); The wall module (4) has multiple fasteners (48) fixed on its bottom periphery. The fasteners (48) are in the shape of an inverted mountain, and the two sides of the fasteners (48) protrude outward relative to the middle. The tray assembly (12) has multiple locking parts (13) fixedly provided on the top periphery, and the locking parts (13) are in the shape of a mountain, with the two sides of the locking parts (13) recessed inward relative to the middle. Both the locking fastener (48) and the locking member (13) are provided with multiple connecting holes. One locking member (13) corresponds to one locking fastener (48). When the locking fastener (48) and the locking member (13) are fastened together, the two sides of the locking fastener (48) and the middle part of the locking member (13) are located on the same plane. The two sides of the locking member (13) and the middle part of the locking fastener (48) are located on the same plane. The multiple connecting holes on the middle part of the locking member (13) and the middle part of the locking fastener (48) coincide.

2. The prefabricated toilet system as described in claim 1, characterized in that: The frame module (2) also includes multiple columns (24), multiple beams (25) and multiple connecting rods (26), which are detachably connected to form the multiple side frames (23), the top frame (21) and the bottom frame (22), and are suitable for the detachable installation of prefabricated bathroom functional modules; The multiple side frames (23) include a first side frame (231), a second side frame (232), a third side frame (233) and a fourth side frame (234) that are sequentially arranged on the side of the frame module (2) and connected end to end.

3. The prefabricated toilet system as described in claim 2, characterized in that: The crossbeam (25) includes a connecting crossbeam (251) connected to the door module (5). The connecting crossbeam (251) is provided with an installation part extending along the length direction of the connecting crossbeam (251). The installation part includes a slide groove (2511) and an installation groove (2512). The door module (5) includes a door panel (51), a hanging wheel assembly (52) fixedly connected to the door panel (51), and a drive device (53) connected in the mounting groove (2512). The door panel (51) is slidably hung on the slide groove (2511) through the hanging wheel assembly (52). The drive device (53) is connected to the hanging wheel assembly (52) for driving the door panel (51) to slide along the slide groove (2511).

4. The prefabricated toilet system as described in claim 2, characterized in that: The three wall panels are detachably connected in sequence to the connecting rods (26) on the first side frame (231), the second side frame (232) and the third side frame (233), and adjacent wall panels are spliced ​​together by tongue and groove joints. The tongue and groove joint includes a tenon (41) and a mortise (42) connected in an L-shape. Both the tenon (41) and the mortise (42) are provided with at least two square slots (43), and the corresponding square slots (43) are connected by square strips (44). The wall panel includes a panel layer (45), a filling layer (46), and a back panel layer (47) from the inside out. The square groove (43) is located on the filling layer (46), and the filling layer (46) is a waterproof layer.

5. The prefabricated toilet system as described in claim 1, characterized in that: The height of the shock-absorbing layer (11) is lower than the height of the bottom frame (22). The tray assembly (12) is a cylindrical shape with the opening facing upward. The tray assembly (12) protrudes from the bottom frame (22), and the tray assembly (12) has a corresponding notch corresponding to the door module (5).

6. The prefabricated toilet system as described in claim 2, characterized in that: The ceiling module (3) includes a wall-top connection frame (31), a top inspection cover (32), and a hydraulic rod (33). The wall-top connecting frame (31) is sleeved on the outside of the wall module (4) and the wash area module (6), and an inspection hole is provided in the middle of the wall-top connecting frame (31). The top inspection cover (32) is located in the inspection hole and is hinged to the wall-top connecting frame (31). One end of the hydraulic rod (33) is rotatably connected to the upper surface of the top inspection cover (32), and the other end of the hydraulic rod (33) is fixedly connected to the connecting rod (26) of the top frame (21) to drive the top inspection cover (32) to rotate.

7. The prefabricated toilet system as described in claim 6, characterized in that: The top inspection cover (32) is recessed inward in the middle. The bottom end of the top inspection cover (32) is the first end face, and the top end of the top inspection cover (32) is the second end face. An exhaust channel (321) is provided between the first end face and the second end face.

8. The prefabricated toilet system as described in claim 2, characterized in that: The wash area module (6) includes a vanity mirror assembly (61), a cabinet assembly (62), a fixing assembly (63), and an auxiliary fixing assembly (64). The vanity mirror assembly (61) is connected above the cabinet assembly (62). Both the cabinet assembly (62) and the vanity mirror assembly (61) are fixedly connected to the train frame by multiple sets of fixing assemblies (63). The cabinet assembly (62) includes a support leg (621), a storage cabinet (622), and a basin assembly (623). The support leg (621) is located at the bottom of the storage cabinet (622) and is fixed to the chassis module (1). The basin assembly (623) is fitted onto the top of the storage cabinet (622). Both the storage cabinet (622) and the basin assembly (623) are fixedly connected to the train frame through multiple sets of fixing components (63). The auxiliary fixing component (64) includes a connecting part (641) connected to the basin assembly (623) and two fixing parts (642) detachably connected to the connecting rods (26) of the first side frame (231) and the third side frame (233), with the two fixing parts (642) respectively connected to both ends of the connecting part (641).

9. The prefabricated bathroom system as described in claim 8, characterized in that: The toilet module (7) includes a toilet (71), a U-shaped handrail, an L-shaped handrail, a folding care panel, and multiple hooks; The toilet (71) is detachably connected to the connecting rod (26) of the third side frame (233), the U-shaped handrail is detachably connected to the connecting rod (26) of the first side frame (231), the L-shaped handrail is detachably connected to the connecting rod (26) of the second side frame (232), the folding care panel is rotatably connected to the connecting rod (26) of the second side frame (232), and the folding care panel is located above the L-shaped handrail. When the folding care panel is unfolded, one end of the folding care panel can be attached to the basin assembly (623).

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