Vehicle-mounted temporary flush toilet, and temporary flush toilet system

Abstract

To provide an on-board temporary flush toilet capable of maintaining an internal environment comfortable and facilitating waste disposal, and a flush toilet system adopting the same.SOLUTION: An on-board temporary flush toilet 1 is structured such that a solar panel 14 is mounted on a ceiling 40 of a toilet housing 10 and the ceiling 40 can adjust a height of the ceiling 40 through vertical elongation / contraction displacement of a cornice 40b. A water storage tank 20 and a sewage tank 30 are placed in a storage 50. The water storage tank 20 and the sewage tank 30 are fixed to the toilet housing 10 by a fixing band 15. The storage 50 is a rectangular solid box provided so as to be adjacent to a lower end of a backside 42. A water feed pump and a crush pressure-feeding device are stored in a storage space defined by the storage 50. The flush toilet system is a system adopting the on-board temporary flush toilet 1 and provided with a transport vehicle and a treatment tank in addition to the on-board temporary flush toilet 1.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an in-vehicle temporary flushing toilet that can be used while mounted on a transport vehicle, and a temporary flushing toilet system using the in-vehicle temporary flushing toilet.

Background Art

[0002] In most cases, there are almost no permanent outdoor toilets around construction sites or event venues that are set up outdoors for a limited period. Under such circumstances, generally, portable temporary toilets have been set up. Conventional portable temporary toilets had to be transported to the planned installation site by truck and installed using a crane or the like. Also, when installing at another location, it was necessary to load and unload again using a crane or the like, and a great deal of labor was required for installation and transportation work. In order to address such problems, mobile temporary toilets that can be used while mounted have been proposed.

[0003] In Patent Document 1, a temporary toilet that can be easily fixed to the loading platform of a truck, whose height can be reduced by lowering the ceiling part during transportation, and can be used both while mounted on the vehicle and while placed on the ground, has been proposed. This temporary toilet is configured such that a box-shaped ceiling part can be raised and lowered with respect to a box-shaped main body, and includes lifting means for raising and lowering the ceiling part, and shielding means for closing the gap between the ceiling part and the box-shaped main body when the ceiling part is raised. Therefore, when loading on the loading platform of a truck for transportation, the ceiling part can be lowered to reduce the height of the temporary toilet. For this reason, during transportation, there is no conflict with height restrictions, it is less affected by the wind, and it becomes safer for driving the truck. Also, it can be easily stabilized and fixed to the loading platform of the truck without using a fixing rope or the like.

[0004] In Patent Document 2, a mobile temporary toilet having a bellows-shaped roof part that expands and contracts has been proposed. This mobile temporary toilet houses a commercially available pump-type simple flushing toilet inside.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] The temporary toilet proposed in Patent Document 1 does not disclose whether it is a flush type or not, nor the arrangement of the storage tank for storing sewage. However, from the drawings and the like, it is presumed that it is a non - flush type and the storage tank is arranged below the toilet bowl. If it is a non - flush type, the odor caused by the sewage will fill and linger inside, and it is impossible to keep the internal environment in a comfortable state. Also, if the storage tank for storing sewage is placed under the toilet bowl, in order to process the sewage, it is necessary to follow procedures such as rotating the agitator provided on the loading platform.

[0007] Regarding the temporary toilet proposed in Patent Document 2, it is disclosed that it is a simple flush type. However, similar to Patent Document 1, it is presumed that the storage tank for storing sewage is arranged below the toilet bowl. Therefore, it is considered that the odor caused by the sewage will fill and linger inside to a certain extent, and it is necessary to follow the same procedures as in Patent Document 1 to process the sewage.

[0008] The present invention has been made by paying attention to these problems, and provides an in - vehicle temporary flush toilet that can keep the internal environment comfortable and facilitate sewage treatment, and a flush toilet system incorporating the in - vehicle temporary flush toilet.

Means for Solving the Problems

[0009] The invention for solving the above problems is an in-vehicle temporary flushing toilet that can be used while mounted on a transport vehicle, comprising a toilet housing provided with a toilet bowl, a water storage tank for supplying washing water for washing the dirt excreted into the toilet bowl, a crushing and pumping device for crushing the washed dirt and pumping it as sewage to the external space, a sewage tank for storing the sewage pumped to the external space by the crushing and pumping device, and a storage part provided side by side at the lower end of the toilet housing, wherein the crushing and pumping device is accommodated in the storage part, and the water storage tank and the sewage tank are placed on the storage part.

[0010] According to this configuration, the dirt excreted into the toilet bowl is sent to the crushing and pumping device together with the washing water and stored in the sewage tank provided in the external space as sewage, so the air accompanied by the odor discharged from the sewage tank does not flow into the inside of the toilet housing. Further, according to this configuration, since the crushing and pumping device is accommodated in the storage part provided side by side at the lower end of the toilet housing, and the water storage tank and the sewage tank are placed on the storage part, efficient space utilization of the toilet housing can be achieved, and space saving of the in-vehicle temporary flushing toilet can be achieved.

[0011] Preferably, the washing water stored in the water storage tank is supplied to the toilet bowl by operating a pump, and the pump is accommodated in the storage part.

[0012] According to this configuration, since the washing water stored in the water storage tank is supplied to the toilet bowl by operating a pump, it is not necessary to set the water storage tank at a predetermined height or more in order to send the washing water to the toilet bowl. Further, since the pump is accommodated in the storage part, more efficient space utilization of the toilet housing can be achieved, and further space saving of the in-vehicle temporary flushing toilet can be achieved.

[0013] Preferably, the sewage tank is characterized in that an inflow valve for allowing sewage to flow in is installed at the upper end, and a discharge valve for discharging the stored sewage stored in the sewage tank is installed at the lower end.

[0014] According to this configuration, the sewage tank is equipped with an inflow valve for allowing sewage to flow in at the upper end and a discharge valve for discharging the stored sewage in the sewage tank at the lower end. Therefore, by opening the discharge valve, almost all of the stored sewage can be discharged from the storage tank. Further, since the discharge valve is located above the storage section of the vehicle-mounted temporary toilet placed on the transport vehicle, a high head can be ensured. As a result, under certain conditions, a pump or the like for discharging the stored sewage becomes unnecessary.

[0015] Preferably, the toilet has a Western toilet to which washing water is supplied and a urinal that does not use washing water.

[0016] According to this configuration, since the washing water is not used, the urinal does not receive the supply of washing water, and efficient use of the washing water can be achieved.

[0017] Another aspect of the invention for solving the above problems is a temporary flushing toilet system using the above-described vehicle-mounted temporary flushing toilet, which includes the above-described vehicle-mounted temporary flushing toilet, a transport vehicle for transporting the vehicle-mounted temporary flushing toilet in a mounted state, Sewage and a treatment tank capable of collectively storing the stored sewage stored in the tank, and the stored sewage is treated after being stored in the treatment tank.

[0018] According to this configuration, the vehicle-mounted temporary flushing toilet, the transport vehicle for transporting the vehicle-mounted temporary flushing toilet in a mounted state, Sewage and a treatment tank capable of collectively storing the stored sewage stored in the tank are provided, and since the stored sewage is treated after being stored in the treatment tank, the treatment of the stored sewage is sufficient by storing it in the treatment tank. As a result, the stored sewage can be treated without arranging a vacuum truck each time or transporting the transport vehicle to the sewage treatment facility unnecessarily. As a result, efficient operation of the vehicle-mounted temporary flushing toilet becomes possible.

[0019] Preferably, the sewage tank is equipped with an inflow valve for allowing sewage to flow in at the upper end, and a discharge valve for discharging the stored sewage at the lower end. The treatment tank is equipped with a treatment tank inflow valve for allowing the stored sewage discharged from the discharge valve to flow in. The position head of the stored sewage at the position of the discharge valve is set to be larger than the position head of the stored sewage at the position of the treatment tank inflow valve.

[0020] According to this configuration, since the position head of the stored sewage at the position of the discharge valve is set to be larger than the position head of the stored sewage at the position of the treatment tank inflow valve, the stored sewage can flow down naturally, be discharged from the storage tank, and flow into the treatment tank. That is, transfer equipment such as a pump for transferring the stored sewage to the treatment tank can be omitted.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0022] Hereinafter, embodiments of the vehicle-mounted temporary flushing toilet 1 (hereinafter referred to as the temporary toilet 1) in the present invention will be described in detail with reference to FIGS. 1 to 7.

[0023] As shown in FIGS. 1 and 2, in the temporary toilet 1, a solar panel 14 is placed on the ceiling 40 of the toilet housing 10. The solar panel 14 is for supplying electricity necessary for the operation of the temporary toilet 1 to a battery (not shown). The battery is preferably provided in the interior 10a of the toilet housing 10. Also, the water storage tank 20 and the sewage tank 30 are placed in the storage portion 50 in a state of being fixed to the toilet housing 10 by the fixing band 15. Thereby, the temporary toilet 1 can be structurally integrated, and these can be lifted and moved together in a batch. The washing water WS stored in the water storage tank 20 is used as water for washing dirt and also as water for handwashing. The sewage tank 30 is a tank for storing sewage SW.

[0024] The battery supplies power to the water supply pump 21, the crushing and pumping device 31, the indoor lighting, etc. via an inverter. By this power supply, it becomes possible to supply the water in the water storage tank 20 to the washing tank 63 by the water supply pump 21. Also, the dirt excreted into the Western-style toilet 61 can be pumped as sewage into the sewage tank 30 by operating the crushing and pumping device 31.

[0025] The toilet housing 10 has a strong and robust structure in which panels are attached to a frame having a three-dimensional ramen structure, and forms a bottomed and ceilinged rectangular tube body. The panels in the range connected to the toilet housing 10 are shared with the toilet housing 10. An outward-opening door 11 is attached to the front surface 41 of the toilet housing 10. Also, a ventilation device 13 is attached to the upper end portion of the front surface 41. The ventilation device 13 is a device that can discharge the air inside the toilet housing 10 to the outside and take in the outside air into the interior 10a of the toilet housing 10 by rotating a fan.

[0026] The ceiling 40 has a ceiling panel 40a and a bellows 40b that can expand and contract in the vertical direction. The ceiling panel 40a is connected to the upper ends of the front surface 41, side surface 43, and rear surface 42 of the toilet housing 10 via the bellows 40b. When the bellows 40b extends, the ceiling panel 40a rises. During transportation, by folding the bellows 40b and shrinking it downward, the ceiling panel 40a can be lowered to reduce the structural height of the temporary toilet 1 and make the height of the toilet 1 lower. Therefore, it is less affected by the wind and the running stability is improved. Also, when the bellows 40b extends and the ceiling panel 40a rises, the interior of the toilet housing 10 becomes ceiling-high. Thus, when entering the interior 10a, there is a space in the ceiling area, which does not cause a sense of oppression to the user.

[0027] As shown in FIG. 3, a Western toilet 61 and a urinal 62 are provided in the interior 10a. The Western toilet 61 is a water-washing type that receives the supply of washing water WS from the water storage tank 20. The washing water WS is stored in a washing tank 63 provided on the rear surface 42 side. Also, a faucet 64 for handwashing is attached to the washing tank 63. Since the urinal 62 does not use the washing water WS, it is a non-water-washing type that does not receive the supply of washing water WS. By making the Western toilet a water-washing type and the urinal a non-water-washing type, the amount of washing water WS used can be reduced.

[0028] The storage part 50 has a strong structure in which a panel is attached to a frame having a three-dimensional ramen structure, and is a rectangular parallelepiped box installed adjacent to the lower end part of the rear surface 42. As shown in FIG. 4, a water supply pump 21 and a crushing and pumping device 31 are stored in a storage space 50a defined by the storage part 50. Also, as described above, the storage part 50 mounts the water storage tank 20 and the sewage tank 30 (see FIG. 3). That is, the water storage tank 20 and the sewage tank 30 are located above the water supply pump 21 and the crushing and pumping device 31. In this way, by arranging them in a multilayered manner in the vertical direction, the space saving of the temporary toilet 1 can be achieved.

[0029] As shown in Fig. 5, the water storage tank 20 is provided with a lid 22 at its upper end and a water supply port 23 is attached to its lower end. By opening the lid 22 and supplying water through the water supply hose 26 from the opening 25, the cleaning water WS can be stored. By operating the water pump 21, the stored cleaning water WS is sent to the water pump 21 via the water supply port 23 and the water supply hose 27. It is preferable to provide a slit (not shown) through which air can flow into the interior of the water storage tank 20 when the lid 22 is closed, at the part where the lid 22 is attached to and detached from the opening 25. Thereby, a decrease in the internal pressure of the water storage tank 20 when the stored cleaning water WS is sent to the water pump 21 can be avoided. As a result, smooth water supply to the water pump 21 becomes possible.

[0030] As shown in Fig. 6, the sewage tank 30 has a sewage inlet 37 attached to a lid 32 provided at its upper end, and an intake valve 33 and an exhaust valve 34 are attached to the upper end of the main body. Further, a drain valve 35 is attached to the lower end. The intake valve 33 is for smoothly discharging the sewage SW by taking in external air to suppress a decrease in internal pressure when discharging the sewage SW stored in the sewage tank 30. The exhaust valve 34 is for discharging the internal air to suppress an increase in internal pressure when the sewage SW flows into the sewage tank 30. Thereby, smooth inflow and discharge of the sewage SW can be achieved. In order to deodorize the air mixed with odor discharged from the exhaust valve 34, it is preferable to attach a deodorizing filter. The treatment of the sewage SW can be performed by connecting the suction and discharge hose of a vacuum truck to the drain valve 35. Also, the treatment of the sewage SW may be performed by inserting the suction and discharge hose of the vacuum truck into the interior of the sewage tank 30 with the lid 32 removed.

[0031] In the present embodiment, the water storage tank 20 and the sewage tank 30 have the same shape, but it is preferable that the capacity of the sewage tank 30 is larger than the capacity of the water storage tank 20. The capacities of the water storage tank 20 and the sewage tank 30 may be appropriately determined in consideration of the expected number of users of the toilet, the installation location of the toilet, and the like.

[0032] As shown in FIG. 7, the washing water WS stored in the water storage tank 20 is sent to and stored in the washing tank 63 by operating the water supply pump 21. The dirt discharged into the Western-style toilet 61 is discharged by the washing water WS stored in the washing tank 63 and sent to the crushing and pumping device 31. The dirt sent to the crushing and pumping device 31 together with the washing water WS is agitated and crushed into sewage and pumped into the sewage tank 30. On the other hand, the dirt discharged into the urinal 62 is pumped into the sewage tank 30 via the crushing and pumping device 31.

[0033] Referring to FIG. 8, the flushing toilet system 100 which forms a part of the above-described in-vehicle temporary flushing toilet 1 will be described.

[0034] The flushing toilet system 100 has a temporary toilet 1, a transport vehicle 2, and a treatment tank 3. The transport vehicle 2 is a vehicle that can move with the temporary toilet 1 placed thereon. The transport vehicle 2 is preferably a small truck that can run even on a narrow road with good maneuverability. More preferably, it is a light truck. When the transport vehicle 2 is a light truck, the loading height and loading weight are subject to greater restrictions compared to, for example, a 2t truck. Therefore, it is necessary to set the total weight and structural height of the temporary toilet 1 to such an extent that they can be loaded on a light truck. The temporary toilet 1 of the present embodiment can change the height of the ceiling plate 40a by expanding and contracting the bellows 40b in the vertical direction. The structural height of the temporary toilet 1 is preferably set to a height dimension that does not exceed the height at which the light truck can run with the ceiling plate 40a lowered and placed on the light truck. Also, the height of the ceiling plate 40a at the completion of the ascent is preferably set to a height dimension that does not cause a sense of oppression to the user when in the room 10a.

[0035] The temporary toilet 1 is placed on the loading platform 210 with the front surface 41 of the toilet housing 10 located at the rear in the traveling direction of the transport vehicle 2. As a result, the door 11 is arranged at a position where it can be opened toward the rear in the traveling direction of the transport vehicle 2. A fixing fitting 12 is attached to the side surface 43 of the toilet housing 10, and a flap 211a is arranged on the side of the transport vehicle 2. The fixing fitting 12 and the flap member 211a are connected via a wire 12a. By applying a predetermined tension to the wire 12a and stretching the wire 12a taut, the temporary toilet 1 is firmly fixed to the loading platform 210 without accidentally shifting its position.

[0036] The drain valve 35 attached to the lower end of the sewage tank 30 is set at a position higher than the upper end of the flap 211b.

[0037] With the flap 211b located behind the loading platform 210 being laid down, by bridging a staircase (not shown) between the loading platform 210 and the ground 110, the user can ascend the staircase to reach the loading platform 210 and then reach the interior 10a via the door 11.

[0038] The treatment tank 3 has a treatment tank inflow valve 225 attached to its upper end. Also, the mounting height of the treatment tank inflow valve 225 is set lower than the mounting height of the drain valve 35. Thus, when the drain valve 35 and the treatment tank inflow valve 225 are connected via a pipe 36, the position head of the stored sewage SW at the position of the drain valve 35 is higher than the position head of the stored sewage SW at the position of the treatment tank inflow valve 225, so the sewage SW flows down naturally and is discharged into the treatment tank 3.

[0039] When the sewage SW flows into the treatment tank 3, an exhaust valve 234 for discharging the air inside the treatment tank 3 is provided at the upper end. In order to deodorize the odor - mixed air discharged from the exhaust valve 234, it is preferable to install a deodorizing filter.

[0040] At the four corners of the upper end of the treatment tank 3, suspension hooks are attached, and at the lower end, an insertion hole 220a into which the forks of a forklift can be inserted is provided. As a result, the treatment tank 3 can be installed by either a crane or a forklift.

[0041] To enable confirmation of the storage volume of the sewage stored in the treatment tank 3, an observation window 221 is provided on the side surface of the treatment tank 3. The observation window 221 is a transparent plate fitted into a vertically elongated, semi-transparent strip-shaped slit. Instead of the observation window 221, a water level gauge for measuring the sewage surface may be used.

[0042] A drain valve 222 is attached to the lower end of the treatment tank 3. This makes it possible to extract the sewage accumulated at the bottom and keep the treatment tank 3 clean.

[0043] The storage capacity of the treatment tank 3 is set to be at least twice or more the storage capacity of the sewage tank 30. As a result, the treatment tank 3 can store the sewage stored in a plurality of transport vehicles 2 in a lump. By reducing the number of sewage treatment times, the efficiency of sewage treatment can be improved.

[0044] The treatment of the sewage SW can be carried out by connecting the suction and discharge hose of a vacuum truck to the drain valve 222. Also, the treatment of the sewage SW may be carried out by inserting the suction and discharge hose of the vacuum truck into the inside of the sewage tank 30 with the lid (not shown) provided at the upper end removed. Further, the treatment tank may be directly transported to a sewage treatment facility to treat the sewage SW.

Industrial Applicability

[0045] The temporary flushing toilet and the temporary flushing toilet system according to the present invention are easy to install, easy to handle, and can quickly process a large amount of dirt. In particular, they can be flexibly applied to outdoor event venues where a large number of visitors come at one time and evacuation sites in disaster-stricken areas, and the post-treatment of sewage is also simple, so the industrial applicability is great.

Explanation of Signs

[0046] 1: Temporary toilet 2: Transport vehicle 3: Treatment tank 10: Toilet housing 20: Water storage tank 30: Sewage tank 40: Ceiling 41: Inflow valve 42: Discharge valve 50: Accommodation section 61: Western toilet 62: Urinal 100: Temporary flushing toilet system 225: Treatment tank inflow valve

Claims

1. A vehicle-mounted temporary flushing toilet that can be used while placed on a transport vehicle, comprising: a toilet housing provided with a toilet bowl; a water storage tank for supplying flushing water for washing the waste excreted into the toilet bowl; a crushing and pumping device for crushing the washed waste into sewage and pumping it to the external space of the storage part; a sewage tank for storing the sewage pumped to the external space of the storage part by the crushing and pumping device, wherein the storage part is provided adjacent to the lower end of the toilet housing, the crushing and pumping device is accommodated in the storage part, and the water storage tank and the sewage tank are placed on the storage part. The vehicle-mounted temporary flushing toilet is characterized by the above.

2. The flushing water stored in the water storage tank is supplied to the toilet bowl by operating a pump, and the pump is accommodated in the storage part. The vehicle-mounted temporary flushing toilet according to Claim 1 is characterized by the above.

3. The sewage tank is equipped with an inflow valve for allowing the sewage to flow in at the upper end and a discharge valve for discharging the stored sewage in the sewage tank at the lower end. The vehicle-mounted temporary flushing toilet according to Claim 1 or 2 is characterized by the above.

4. The toilet bowl has a Western-style toilet bowl to which the flushing water is supplied and a urinal that does not use the flushing water. The vehicle-mounted temporary flushing toilet according to any one of Claims 1 to 3 is characterized by the above.

5. A vehicle-mounted temporary flushing toilet according to Claim 1, a transport vehicle for transporting the vehicle-mounted temporary flushing toilet in a placed state, and a treatment tank capable of collectively storing the stored sewage stored in the sewage tank. The temporary flushing toilet system is characterized by the above, wherein the stored sewage is treated after being stored in the treatment tank.

6. The sewage tank is equipped with an inflow valve for allowing the sewage to flow in at the upper end and a discharge valve for discharging the stored sewage at the lower end. The treatment tank is equipped with a treatment tank inflow valve for allowing the stored sewage discharged from the discharge valve to flow in. The position head of the stored sewage at the position of the discharge valve is set to be larger than the position head of the stored sewage at the position of the treatment tank inflow valve. The temporary flushing toilet system according to Claim 5 is characterized by the above.

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