JP2005076280A - Drain device of movable flush toilet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suitably flush excrement including solid matter, even in a state of being unable to use tap water pressure by 100%. <P>SOLUTION: This movable flush toilet has a water storage tank 12 for storing water for flushing the excrement, a toilet bowl 13 capable of storing the excrement, and a sewage tank 14 incorporated with a pump, capable of sucking a flush water flow including the excrement. A rotary blade 25 for crushing the solid matter in the excrement is arranged in a submerged pump 15. For arranging the submerged pump 15 so that the rotational axis 23 of an impeller 24 inclines to a vertical line, the submerged pump 15 is put in an inclined attitude, and is fixed to the sewage tank 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile water washing tank having a water storage tank for storing water for washing excrement, and a toilet tank capable of storing excrement and a sewage tank with a built-in pump capable of sucking a flush water flow containing excrement. The present invention relates to a drainage device in a toilet.

  Many mobile toilets, like so-called portable toilets, do not differ from conventional toilets, and even when used together with a deodorant, there are odor problems. Also, the processing after use is troublesome. In terms of comfort, there is nothing better than a flushing type, but there is a bottleneck that water and drainage work is necessary, and it can be said that flushing types such as portable toilets are hardly put into practical use.

  On the other hand, at the level of technical development, for example, there is an invention of an automatic washing toilet of Japanese Patent Laid-Open No. 56-27250, which connects a defecation receiving tool and a defecation storage tank having a vacuum suction structure by a hose and performs washing. It has a configuration in which a hot water supply pipe for drainage is connected. Therefore, it can be said that this is a flush type, but since the defecation receiver is closely attached to the crotch, it is considered unsuitable for normal use by healthy persons.

  Japanese Patent Application Laid-Open No. 2000-8442 discloses a toilet device provided with a stirring mechanism at the bottom inside the toilet body body provided with a drainage water supply unit. There is a statement that you can. However, in this type of flushing method, there is no problem if the tap water pressure can be used as a pressurization source, but in other cases the flow of flushing water flow is weak, and solids, paper, etc. in excreta are present. It causes a problem that it does not flow well.

JP-A-56-27250

JP2000-8442

  The present invention has been made paying attention to the above points, and the problem is to make it possible to wash the excreta preferably even in a situation where the tap water pressure cannot be used 100%. Moreover, the other subject of this invention is providing the drainage apparatus of the mobile flush toilet which can be used in the condition where there is no water supply piping or drainage.

  In order to solve the above-mentioned problems, the present invention provides a water storage tank for storing water for washing waste, a toilet that can store waste, and a sewage with a built-in pump that can suck a flush water flow containing the waste. In a mobile flush toilet with a tank, a submersible pump is provided with a rotary blade for crushing solids in excrement, and the submersible pump is arranged so that the rotation axis of the impeller is inclined with respect to the vertical line The submersible pump is inclined and fixed to the sewage tank.

  The mobile flush toilet that is the subject of the present invention may be considered to be a combination of a water storage tank and a sewage tank with a toilet bowl as a center, and sucking sewage with a pump. The water storage tank is provided with a valve that opens and closes when water is passed during washing, and the sewage tank has a built-in pump. As this pump, a so-called submersible pump, which is composed of a pump in a protective box so that it can be operated underwater and its electric motor, is used.

  The submersible pump is provided with a rotary blade that cuts or crushes solids in the excrement. The purpose of this rotary blade is to cut or crush the solid content so that the solid content present in the waste water is made as fine as possible to facilitate flow along with the water flow. Due to the miniaturization of the solid content, when the pressure as high as the tap water pressure cannot be obtained, the washing water flow containing the solid content can be smoothly sucked with only the submersible pump.

  This submersible pump is arranged so that the rotational axis of the impeller constituting the pump is inclined with respect to the vertical line. Therefore, by placing the submersible pump in an inclined posture and placing it in the sewage tank and fixing it in that posture, a space with an appropriate water flow is formed between the suction port of the submersible pump and the sewage tank, It is not necessary to weaken the flow of flush water flow toward the suction port. The inclination angle is arbitrary and can be changed according to the output of the submersible pump and the size and form of the sewage tank.

  As means for locating the submersible pump in an inclined manner, the submersible pump has a lower engaging portion that contacts the lower portion of the submersible pump to define the inclination and an upper engaging portion that contacts the upper portion of the submersible pump and defines the inclination, The stop portion may be a protrusion, and the upper locking portion may be a hook that is locked to a part of the submersible pump. It is desirable that the submersible pump be placed at the bottom of the sewage tank and not suspended.

  The submersible pump has an impeller. The impeller generates a suction flow by rotation, sucks water upstream from the impeller, and discharges it downstream. The impeller aspirates the water flow, and also acts to stir and further subdivide the solid content already contained in the water flow that has been cut and pulverized by the rotary blade. In order not to reduce the force of the suction water flow, it is desirable to narrow the suction port of the housing surrounding the submersible pump to a diameter smaller than the diameter of the impeller. In the present invention, the flow of the flush water flow is obtained by the gravity drop from the water storage tank and the suction force of the submersible pump, but depending on the model, it may be connected to the water pipe and used together with the tap water pressure.

  Since the present invention is configured and operates as described above, the capacity of the submersible pump is maximized, and even when the tap water pressure cannot be used 100%, it is possible to wash the excreta appropriately. The effect of becoming. Moreover, according to this invention, the drainage apparatus of the mobile flush toilet which can be used in the condition where there is no water pipe or drainage can be provided.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is an illustration of a mobile flush toilet 10 and its drainage device 11 according to the present invention.

  12 is a water storage tank for storing flush water, 13 is a toilet capable of storing excreta containing solids, 14 is a sewage tank, and has a built-in submersible pump 15 capable of sucking a flush water flow containing solid excreta. doing. Reference numeral 16 denotes a water pipe, which connects the toilet drainage 17 and the sewage tank inflow part 18 to introduce a flush water flow containing solids into the sewage tank 14. The water storage tank 12 is installed on the toilet bowl 19, and the entire toilet bowl and the drainage device 11 are installed on the base plate 20 and integrated as a whole.

  As shown in FIGS. 2 and 3, the drainage device 11 includes a sewage tank 14 and a submersible pump 15 installed therein. The illustrated submersible pump 15 has a suction port 21 at the bottom and a discharge port 22 at the top. The rotary shaft 23 in the vertical direction has an impeller 24 inside the suction port 21 and a rotary blade 25 outside the suction port 21. Reference numeral 26 denotes a motor. A housing 27 has the suction port 21 described above.

  The rotary blade 25 has the purpose of pulverizing the solid content in the excrement or the excrement in the solid state. In the illustrated example, the rotation direction leading edge 28 of the two blades is a cutting blade. The rotary blade 25 has a larger radius of rotation than the suction port 21 of the housing 27, and the diameter of the impeller 24 is set to be larger than that of the rotary blade 25 (see FIGS. 4 and 5).

  A lower locking portion 29 as a means for locating the submersible pump 15 is provided in a protruding shape on the bottom of the sewage tank 14, and is locked to the upper end of the recess 31 between the leg pieces 30 of the submersible pump 15. Tilted. The tilted submersible pump 15 is supported by leg pieces 30. The upper locking part 32, which is another means for contacting the upper part of the submersible pump 15 and defining the inclination thereof, is provided in a hook shape on the peripheral wall part of the sewage tank 14, and the mating locking part 33 of the submersible pump 15. It is fixed in an inclined state by being locked to. The submersible pump 15 is now supported at three points in the sewage tank and is stable (in the example of FIG. 3 and the like, the pump body is also in contact with the inner wall, so it is supported by a total of four points), but it prevents rattling. For this purpose, the mating locking portion 33 locked to the upper locking portion 32 is further fixed by means 34 such as binding.

  In each figure, 35 is a joint in the water supply system to the water storage tank 12 and is connected by a suitable hose during water supply. Reference numeral 36 denotes a pump operation sensor, and reference numeral 37 denotes a pump stop sensor, which is connected to a control circuit (not shown) and used for operation control of the submersible pump 15. Reference numeral 38 denotes an installation sensor.

  In the apparatus 11 of the present invention having such a configuration, water can be stored in the sewage tank 14 in advance by storing water in the water storage tank 12 and washing the stool stored in the toilet bowl 13 after use. For this reason, no stool remains in the toilet 13, and the odor is not bothered. When the submersible pump 15 is started in a state where sewage containing solid excreta is accumulated in the sewage tank 14, a water flow 39 sucked into the suction port 21 is formed in the sewage. Simultaneously with the rotation of the impeller 24, the rotary blade 25 rotates. Since the rotary blade 25 covers the suction port 21, all of the solid matter sucked is subjected to the crushing action by the rotary blade 25. Since the minute portion has changed into a minute form, it becomes easy to move with the water flow, and is smoothly discharged to the outside through the drainage hose 40.

1 is an overall view showing an example of a drain device for a mobile faucet toilet according to the present invention. Plane explanatory drawing which shows a drain apparatus part same as the above. Front explanatory drawing with respect to FIG. Expansive explanatory drawing which shows the installation form of a submersible pump. The bottom view of a submersible pump.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile flush toilet 11 Drainage device 12 Water storage tank 13 Toilet 14 Sewage tank 15 Submersible pump 21 Suction port 22 Discharge port 23 Rotating shaft 24 Impeller 25 Rotating blade 29 Lower locking portion 32 Upper locking portion 33 Counter locking portion 40 Drain hose

Claims (2)

In a mobile flush toilet having a water storage tank for storing water for washing waste, a toilet bowl capable of storing waste and a sewage tank with a built-in pump capable of sucking a flush water flow containing the waste, In order to dispose the submersible pump so that the rotation axis of the impeller is inclined with respect to the vertical line, the submersible pump is placed in an inclined posture in the sewage tank. A drainage device for a mobile flush toilet characterized by being fixed. As means for locating the submersible pump in an inclined manner, the submersible pump has a lower engaging portion that contacts the lower portion of the submersible pump and defines the inclination, and an upper engaging portion that contacts the upper portion of the submersible pump and defines the inclination. The drainage device for a mobile flush toilet according to claim 1, wherein the stopper is a protrusion, and the upper locking part is a hook that is locked to a part of the submersible pump.

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