Rear bathroom structure for motor home

Abstract

The utility model relates to the field of motor homes, in particular to a rear bathroom structure for a motor home, which comprises a vehicle body and a toilet extension box body, the toilet extension box body is arranged on one side of the tail part of the vehicle body and can extend out of the vehicle body to form an external expansion bathroom structure, and a pipeline system is arranged in the toilet extension box body; a toilet mounting cavity for accommodating the toilet extension box body is formed in the rear side of the vehicle body, and a toilet floor is arranged at the bottom in the toilet mounting cavity. The toilet has the advantages that a toilet is divided into the toilet installation cavity of a fixed structure and the toilet extension box body of a movable structure, and a larger installation space is reserved for a closestool; when bathing is needed, the bathing area is unfolded outside the vehicle body, the bathroom space is enlarged, and the exhaust speed and the bathroom comfort degree are improved; in addition, two groups of toilet doors are arranged at an opening in the inner side of the touring car body of the toilet mounting cavity, so that the toilet is thoroughly separated from a kitchen at the rear part of the touring car, and odor tainting caused by narrow space in the touring car is avoided.

Description

Technical Field

[0001] This utility model relates to the field of RVs, specifically to a rear-mounted bathroom structure for RVs. Background Technology

[0002] Due to structural limitations, RVs typically have small bathrooms. To allow for showering space, toilets are usually designed to be small or foldable RV-specific toilets are used. When not in use, these toilets can be rotated to a suitable position to reduce the space occupied and make room for showering. However, this type of RV structural design does not fundamentally solve the series of inconveniences caused by the small bathroom space. At the same time, since the bathroom is currently embedded in the RV body, the rising water vapor during showering needs to be expelled by the ventilation system. The small bathroom space is prone to increased discomfort due to heat accumulation, making it inconvenient to use. Utility Model Content

[0003] The purpose of this utility model is to provide a rear-mounted bathroom structure for RVs in order to solve the above problems. By separating the bathroom into a fixed toilet installation cavity and a movable toilet extension box, more installation space is reserved for the toilet. See the following description for details.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a rear-mounted bathroom structure for RVs, including a vehicle body and a toilet extension box. The toilet extension box is located on one side of the rear of the vehicle body and can extend outward from the vehicle body to form an extended bathroom structure. A piping system is installed inside the toilet extension box.

[0006] The rear side of the vehicle body is provided with a toilet mounting cavity to accommodate the toilet extension box. A toilet floor is provided at the bottom of the toilet mounting cavity. The toilet floor is fixedly connected to the rear side of the toilet mounting cavity, and the front side of the toilet floor is suspended. Mounting grooves are provided on the vehicle body at the four corners of the toilet mounting cavity. Telescopic hydraulic cylinders that support the toilet extension box to extend out of the toilet mounting cavity are fixed in each of the four mounting grooves.

[0007] The aforementioned rear-mounted bathroom structure for RVs incorporates a toilet extension box that extends out of the toilet mounting cavity. The extended space of this box serves as the bathroom area, effectively separating the bathroom into a fixed toilet mounting cavity and a movable extension box. When only the toilet function is used, the extension box remains retracted within the mounting cavity, allowing occupants to use the toilet on the floor. This eliminates the need for smaller or foldable toilets due to space constraints, providing more installation space for standard-sized toilets and enhancing user comfort. When showering is required while the vehicle is parked, a telescopic cylinder extends the extension box outwards, creating a two-section structure for both the toilet and shower areas. The piping system deploys simultaneously during this process. The system ensures that the shower structure connected to the water supply pipe inside the toilet extension box expands outwards simultaneously, extending the shower area to the outside of the vehicle body, expanding the bathroom space, and improving ventilation speed and bathroom comfort by opening the vent pipe. When the vehicle is in motion, the side extension box retracts into the side extension slot of the vehicle body, obstructing the parking toilet door. In this case, the driving toilet door is used, facing the vehicle passage, similar to the traditional RV structure. When parked, the side extension box extends outwards, removing its obstruction of the parking toilet door. At this time, the sliding door of the vehicle passage is closed, sealing the front and rear of the vehicle passage. Then, the parking toilet door is opened to use the toilet, thus completely separating the toilet from the rear kitchen of the RV, preventing odor transfer caused by the small space inside the RV, and improving the odor problem caused by the close proximity of the kitchen and toilet, thereby improving user comfort.

[0008] Preferably, the toilet extension box is equipped with a washbasin, and the piping system includes two water supply pipes, one end of which extends into the toilet extension box and is connected to the washbasin drain pipe.

[0009] Preferably, the basin drain pipe is connected to the basin platform, and a swivel joint is provided at the junction of the two water supply pipes and at the junction of the water supply pipe and the basin drain pipe.

[0010] Preferably, a guide rail is fixed to the outside of the toilet extension box, the guide rail extends along the sliding direction of the toilet extension box, and the toilet extension box slides with the inner wall of the toilet mounting cavity through the guide rail.

[0011] Preferably, the toilet extension box is provided with a ventilation window on the outside, a toilet is provided on the top of the toilet floor, and a drain hole corresponding to the toilet is provided through the middle of the toilet floor.

[0012] Preferably, the vehicle body has side expansion slots on both sides, and each of the two sets of side expansion slots has a side expansion box that can extend outward. The rear middle of the vehicle body has a carriage passage, and the carriage passage has a rear door hinge and a front door hinge on the side near the toilet installation cavity.

[0013] Preferably, a vehicle toilet door is hinged to the rear door axle, and a parking toilet door is hinged to the front door axle. The vehicle toilet door and the parking toilet door cooperate to close the opening inside the toilet installation cavity of the vehicle.

[0014] Preferably, a sliding door is provided at the opening on the side of the carriage passage near the center of the vehicle body, and the sliding door is flush with the door of the parking toilet.

[0015] The beneficial effects are as follows: 1. This utility model separates the toilet into a fixed toilet installation cavity and a movable toilet extension box. When only the toilet function is used, the toilet extension box is kept in an embedded and retracted state, thus reserving more installation space for the toilet.

[0016] 2. When a shower is needed, the toilet extension box can be extended outward using the telescopic hydraulic cylinder to expand the toilet into a two-section structure of toilet area and shower area. At this time, the pipeline system is deployed simultaneously to extend the shower area to the outside of the vehicle body, expand the bathroom space, improve ventilation speed and bathroom comfort.

[0017] 3. Additionally, two toilet doors are installed at the opening inside the toilet installation chamber of the vehicle body. The driving toilet door is used after the side extension box is retracted into the vehicle body, which is the same as the traditional RV structure. When the vehicle is parked, the side extension box is extended, and then the sliding door of the vehicle passage is closed. When using the toilet, the parking toilet door is opened to completely separate the toilet from the kitchen at the rear of the RV, so as to avoid the odor from mixing in the small space inside the RV and improve the comfort of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the main view structural diagram of this utility model;

[0020] Figure 2 This is a partial structural diagram of the extended state of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of another aspect of the present invention;

[0022] Figure 4 This is a partial structural disassembly diagram of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the toilet extension box of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the pipeline system of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the toilet floor of this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Vehicle body; 101. Mounting slot; 102. Side expansion slot; 103. Carriage passage; 104. Front door hinge; 105. Rear door hinge; 2. Toilet extension box; 201. Guide rail; 202. Ventilation window; 203. Telescopic cylinder; 3. Side expansion box; 4. Parking toilet door; 5. Toilet mounting cavity; 6. Toilet floor; 601. Drain hole; 7. Driving toilet door; 8. Washbasin; 9. Piping system; 901. Water supply pipe; 902. Washbasin drain pipe; 903. Rotary joint; 10. Toilet. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] See Figures 1-7 As shown, this utility model provides a rear-mounted bathroom structure for RVs, including a vehicle body 1 and a toilet extension box 2. The toilet extension box 2 is located on one side of the rear of the vehicle body 1, and the toilet extension box 2 can extend outward from the vehicle body 1 to form an extended bathroom structure. The toilet extension box 2 is used to expand outward when taking a shower. The toilet extension box 2 is equipped with a pipeline system 9 as a water supply pipe.

[0030] The rear side of the vehicle body 1 is provided with a toilet mounting cavity 5 to accommodate the toilet extension box 2. The bottom of the toilet mounting cavity 5 is provided with a toilet floor 6, which is fixedly connected to the rear side of the toilet mounting cavity 5. The front side of the toilet floor 6 is suspended to ensure that the toilet extension box 2 can be retracted into the toilet mounting cavity 5. Thus, even when the toilet extension box 2 is not extended, one can still enter the toilet floor 6 to use the toilet. The four corners of the vehicle body 1 of the toilet mounting cavity 5 are provided with mounting slots 101. Each of the four sets of mounting slots 101 is fixed with a telescopic cylinder 203 that supports the toilet extension box 2 extending out of the toilet mounting cavity 5.

[0031] As an optional implementation, the toilet extension box 2 is equipped with a washbasin 8 inside, and the piping system 9 includes two water supply pipes 901. One end of the water supply pipe 901 extends into the toilet extension box 2 and is connected to the washbasin drain pipe 902. Both the washbasin drain pipe 902 and the water supply pipe 901 are connected to the washbasin 8. Rotary joints 903 are provided at the joints of the two water supply pipes 901 and at the joints of the water supply pipe 901 and the washbasin drain pipe 902 to ensure that the piping system 9 can be opened and folded synchronously with the toilet extension box 2.

[0032] A guide rail 201 is fixed to the outside of the toilet extension box 2. The guide rail 201 extends along the sliding direction of the toilet extension box 2, and the toilet extension box 2 slides with the inner wall of the toilet installation cavity 5 through the guide rail 201, which improves the smoothness of the toilet extension box 2's opening and closing. An openable ventilation window 202 is provided on the outside of the toilet extension box 2, which makes it easy to open the ventilation window 202 to keep water vapor out in time during the shower. A toilet 10 is installed on the top of the toilet floor 6, and a drain hole 601 corresponding to the toilet 10 is passed through the middle of the toilet floor 6. The drain hole 601 is connected to the black water tank of the RV, which makes it easy to discharge the toilet wastewater from the toilet area in time.

[0033] Both sides of the vehicle body 1 are provided with side expansion slots 102. Each of the two sets of side expansion slots 102 is provided with a side expansion box 3 that can extend outward and retract inward. A carriage passage 103 is provided in the middle of the rear side of the vehicle body 1. A rear door hinge 105 and a front door hinge 104 are provided in the carriage passage 103 near the toilet installation cavity 5. A driving toilet door 7 is hinged on the rear door hinge 105, and a parking toilet door 4 is hinged on the front door hinge 104. The driving toilet door 7 and the parking toilet door 4 cooperate to close the opening inside the toilet installation cavity 5. A sliding door is provided at the opening of the carriage passage 103 near the center of the vehicle body 1. The sliding door is flush with the parking toilet door 4. A kitchen that can expand outward is provided at the rear of the vehicle body 1. The sliding door can close the opening of the carriage passage 103 near the front of the vehicle, so that the parking toilet door 4 can be used when parking to completely separate the toilet from the kitchen at the rear of the vehicle body 1 and prevent toilet odor from entering the kitchen.

[0034] Using the above structure, a toilet extension box 2 that extends out of the toilet mounting cavity 5 is provided. The extended space of the toilet extension box 2 is used as a bathroom area, thus separating the bathroom into a fixed toilet mounting cavity 5 and a movable toilet extension box 2. When only the toilet function is used, the toilet extension box 2 remains embedded and retracted in the toilet mounting cavity 5, and the toilet 10 on the toilet floor 6 is used. There is no need to consider the bathroom space to use a small-volume toilet 10 or a foldable toilet 10, reserving more installation space for the toilet 10 and ensuring that the RV can use a normal-sized toilet 10, improving user comfort. When showering is needed while the vehicle is parked, the telescopic cylinder 203 extends to extend the toilet extension box 2 outward from the vehicle body 1, thus expanding the entire toilet from the inside out into a two-section structure of toilet area and shower area. At this time, the piping system 9 unfolds simultaneously to ensure the toilet extension box 2 can be used. The shower structure connected to the water supply pipe 901 inside the extension box 2 expands outwards, extending the shower area to the outside of the vehicle body 1, expanding the bathroom space, and improving ventilation speed and bathroom comfort by opening the vent pipe. When the vehicle is in motion, the side extension box 3 is retracted into the side extension slot 102 of the vehicle body 1, and the side extension box 3 obstructs the parking toilet door 4. At this time, the driving toilet door 7 is used, which faces the vehicle passage 103, the same as the traditional RV structure. When the vehicle is parked, the side extension box 3 is extended outwards, and the obstruction effect of the side extension box 3 on the parking toilet door 4 is removed. At this time, the sliding door of the vehicle passage 103 is closed, sealing the front and rear of the vehicle passage 103. Then, the parking toilet door 4 is opened to use the toilet, thus completely separating the toilet from the kitchen at the rear of the RV, avoiding the cross-contamination of odors in the small space inside the RV, improving the odor problem caused by the close distance between the kitchen and the toilet, and thus improving the comfort of use.

[0035] By separating the toilet into a fixed toilet installation cavity 5 and a movable toilet extension box 2, the toilet extension box 2 is kept in an embedded and retracted state when only the toilet function is used, thus reserving more installation space for the toilet 10.

[0036] When a shower is needed, the extension box 2 of the toilet is extended outward by the telescopic cylinder 203 to expand the toilet into a two-section structure of toilet area and shower area. At this time, the pipeline system 9 is deployed simultaneously to extend the shower area to the outside of the vehicle body 1, expand the bathroom space, improve the ventilation speed and bathroom comfort.

[0037] In addition, two toilet doors are installed at the inner opening of the toilet installation cavity 5 on the vehicle body 1. After the side extension box 3 is retracted into the vehicle body 1, the driving toilet door 7 is used. At this time, it is the same as the traditional RV structure. When the vehicle is parked, the side extension box 3 is extended outward, and then the sliding door of the vehicle passage 103 is closed. When using the toilet, the parking toilet door 4 is opened to completely separate the toilet from the kitchen at the rear of the RV, so as to avoid the odor from mixing in the small space inside the RV and improve the comfort of use.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rear-mounted bathroom structure for a motorhome, characterized in that: Includes a vehicle body (1) and a toilet extension box (2). The toilet extension box (2) is located on one side of the rear of the vehicle body (1), and the toilet extension box (2) can extend outward from the vehicle body (1) to form an extended bathroom structure. The toilet extension box (2) is equipped with a pipeline system (9). The rear side of the vehicle body (1) is provided with a toilet installation cavity (5) for accommodating the toilet extension box (2). The bottom of the toilet installation cavity (5) is provided with a toilet floor (6). The toilet floor (6) is fixedly connected to the rear side of the toilet installation cavity (5), and the front side of the toilet floor (6) is suspended. The four corners of the toilet installation cavity (5) are provided with installation grooves (101) on the vehicle body (1). Each of the four sets of installation grooves (101) is fixed with a telescopic cylinder (203) that supports the toilet extension box (2) to extend out of the toilet installation cavity (5).

2. The rear-mounted bathroom structure for a motorhome according to claim 1, characterized in that: The toilet extension box (2) is equipped with a washbasin (8) inside. The pipeline system (9) includes two water supply pipes (901). One end of the water supply pipe (901) extends into the toilet extension box (2) and is connected to the washbasin drain pipe (902).

3. The rear-mounted bathroom structure for a motorhome according to claim 2, characterized in that: The basin drain pipe (902) is connected to the basin stand (8), and a rotary joint (903) is provided at the junction of the two water supply pipes (901) and at the junction of the water supply pipe (901) and the basin drain pipe (902).

4. The rear-mounted bathroom structure for a motorhome according to claim 3, characterized in that: The toilet extension box (2) is fixed with a guide rail (201) on the outside. The guide rail (201) extends along the sliding direction of the toilet extension box (2), and the toilet extension box (2) slides with the inner wall of the toilet installation cavity (5) through the guide rail (201).

5. The rear-mounted bathroom structure for a motorhome according to claim 4, characterized in that: The toilet extension box (2) is provided with a ventilation window (202) on the outside, a toilet (10) is provided on the top of the toilet floor (6), and a drain hole (601) corresponding to the toilet (10) is provided in the middle of the toilet floor (6).

6. The rear-mounted bathroom structure for a motorhome according to claim 1, characterized in that: The vehicle body (1) is provided with side expansion slots (102) on both sides. Each of the two sets of side expansion slots (102) is provided with a side expansion box (3) that can extend outward. The rear middle of the vehicle body (1) is provided with a carriage passage (103). The carriage passage (103) is provided with a rear door axle (105) and a front door axle (104) on the side near the toilet installation cavity (5).

7. The rear-mounted bathroom structure for a motorhome according to claim 6, characterized in that: A vehicle toilet door (7) is hinged to the rear door shaft (105), and a parking toilet door (4) is hinged to the front door shaft (104). The vehicle toilet door (7) and the parking toilet door (4) cooperate to close the opening inside the toilet installation cavity (5) of the vehicle.

8. The rear-mounted bathroom structure for a motorhome according to claim 7, characterized in that: The passageway (103) is provided with a sliding door at the opening on the side near the center of the vehicle body (1), and the sliding door is flush with the parking toilet door (4).

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