JP2020139402A - Toilet bowl washing system - Google Patents

Abstract

To provide a toilet bowl washing system capable of effectively washing a drain channel connected to a drain part of a toilet bowl.SOLUTION: A toilet bowl washing system 1A comprises: water supply channels 19, 8 that supply washing water to a toilet bowl 2; a bypass water supply channel 10 that is provided so as to branch off from the water supply channels, and is connected to a drain channel 9 connected to a drain part 5 of the toilet bowl; an air bubble mixing part 13A that bubbles and mixes air into the washing water supplied to the bypass water supply channel; and a water storage part 18 that is connected to an upstream end part of the water supply channels. The air bubble mixing part has a pressure release part 16A that mixes fine bubbles into the washing water by reducing a pressure.SELECTED DRAWING: Figure 1

Description

The present invention relates to a toilet bowl cleaning system that supplies flush water to a toilet bowl.

Conventionally, a toilet device that supplies washing water in which air bubbles are mixed in a toilet has been known.
For example, in Patent Document 1 below, a fine bubble generator that supplies water together with fine bubbles is provided in a storage tank of the toilet bowl, and if a cleaning operation is performed, the cleaning water containing the fine bubbles is allowed to flow into the toilet bowl. The toilet device is disclosed.

Japanese Unexamined Patent Publication No. 2008-274615

According to the toilet device described in Patent Document 1, the toilet bowl can be washed with washing water containing fine bubbles. However, the fine bubbles contained in the washing water tend to decrease when flowing down the inner surface of the toilet bowl or in the path leading to the drainage channel such as a drain trap, and further improvement is desired from the viewpoint of the cleaning property of the drainage channel. Is done.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a toilet bowl cleaning system capable of effectively cleaning a drainage channel connected to a drainage portion of a toilet bowl.

In order to achieve the above object, the toilet bowl cleaning system according to the present invention is provided in a water supply channel for supplying cleaning water to the toilet bowl and a drainage channel branched from the water supply channel and connected to the drainage portion of the toilet bowl. It is provided with a bypass water supply channel to be connected, a bubble mixing section in which air is bubbled and mixed in the washing water supplied to the bypass water supply channel, and a water storage section connected to the upstream end of the water supply channel. The bubble mixing portion is characterized by including a pressure release portion that mixes fine bubbles into the washing water by reducing the pressure.

The toilet bowl cleaning system according to the present invention has the above-described configuration, so that the drainage channel connected to the drainage portion of the toilet bowl can be effectively cleaned.

It is a schematic system block diagram which shows typically an example of the toilet bowl cleaning system which concerns on one Embodiment of this invention. It is a schematic system block diagram which shows typically an example of the toilet bowl cleaning system which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In each of the following embodiments, the vertical direction and the like will be described with reference to the state in which the toilet bowl is installed.
FIG. 1 is a diagram schematically showing an example of a toilet bowl cleaning system according to the first embodiment.

As shown in FIG. 1, the toilet bowl cleaning system 1 according to the present embodiment includes water supply channels 6 and 8 for supplying cleaning water to the toilet bowl 2. In the present embodiment, the toilet bowl cleaning system 1 is configured to supply cleaning water to a single toilet bowl 2. Further, an example is shown in which the toilet bowl 2 as the supply destination of the washing water is a urinal used in a standing position.
The toilet bowl 2 includes a bowl portion (pot portion) 3, a water supply portion 4 connected to water supply channels 6 and 8, and a drainage portion 5 for discharging urine and washing water.

The water supply unit 4 is provided with a discharge unit such as a spreader that discharges cleaning water along the inner surface of the bowl portion 3.
The drainage section 5 constitutes a bowl trap-shaped or P-trap-shaped trap section and is connected to the drainage channel 9. The toilet bowl 2 may be a so-called floor-standing vertically long urinal installed so as to be placed on the floor, or a wall-mounted urinal installed so as to be hooked on a wall surface. Further, the toilet bowl 2 may be included and grasped as the toilet bowl cleaning system 1. In other words, it may be grasped as a toilet bowl device including the toilet bowl 2 and the toilet bowl cleaning system 1.

Further, the toilet bowl cleaning system 1 is provided as a branch from the water supply channels 6 and 8, and includes a bypass water supply channel 10 connected to the drainage channel 9 connected to the drainage portion 5 of the toilet bowl 2. In the following, the water supply channel 6 on the upstream side (water supply source side) of the branch portion 10a to which the bypass water supply channel 10 is branched and connected is referred to as the upstream water supply channel 6, and is on the downstream side (toilet bowl 2 side) of the branch portion 10a. ) Will be described as the downstream water supply channel 8.
The bypass water supply channel 10 is provided with a bypass valve 11 that opens and closes the bypass water supply channel 10 to supply and shut off the washing water. Further, the bypass water supply channel 10 is provided with a backflow prevention unit 12 such as a check valve (check valve, check valve) for preventing backflow to the upstream side. The backflow prevention unit 12 is provided on the downstream side (drainage channel 9 side) of the bypass valve 11. The downstream end of the bypass water supply channel 10 is connected to a portion relatively close to the drainage portion 5 of the drainage channel 9 having a horizontal pipe shape. The downstream end of the bypass water supply channel 10 may be connected to the upstream end of a portion of the drainage channel 9 that extends in a substantially horizontal direction.

Further, the toilet bowl cleaning system 1 includes a bubble mixing portion 13 in which air is bubbled and mixed in the cleaning water supplied to the bypass water supply channel 10. In the present embodiment, the bubble mixing portion 13 is provided so as to mix bubbles in the upstream water supply channel 6 on the upstream side of the branch portion 10a to which the bypass water supply channel 10 is branched and connected. The bubble mixing portion 13 may be configured to mix fine bubbles of both millimeter order and micrometer order or one of them. Further, in the bubble mixing portion 13, the void ratio (the area ratio of the bubbles contained in the unit cross-sectional area of the fluid) of the bubble washing water (cleaning water containing fine bubbles) mixed with fine bubbles is about 5% to 40%. , Preferably, it may be set to be about 10% to 30%.

In the present embodiment, the bubble mixing section 13 includes a venturi tubular gas-liquid mixing section 16 provided as a pressure sudden change section in the upstream water supply channel 6 and an air introduction section 14 for introducing air into the gas-liquid mixing section 16. , Is equipped. The air introduction portion 14 may be one in which the tip of the pipeline is open to the atmosphere, or one in which an on-off valve is provided in the middle of the pipeline. Further, the air introduction unit 14 may introduce a gas containing a functional gas such as carbon dioxide gas or ozone gas into the air. Further, in the present embodiment, a flow rate adjusting unit 15 capable of adjusting the flow rate of the air supplied toward the gas-liquid mixing unit 16 is provided on the downstream side of the air introducing unit 14. By adjusting the flow rate adjusting unit 15, the above-mentioned void ratio may be adjusted.

The gas-liquid mixing unit 16 is provided with a nozzle-shaped throttle portion, and air is introduced from the air introduction portion 14 by the ejector effect due to the negative pressure action of the washing water discharged through the throttle portion. Further, the air introduced in this way is sheared and subdivided by the pressure sudden change action when passing through the small diameter portion and the enlarged diameter portion of the gas-liquid mixing portion 16, and is mixed into the washing water as fine bubbles. To. With such a configuration, if the washing water is flowed through the upstream water supply channel 6, air can be taken in by the negative pressure action to generate foam washing water, so that it is not necessary to replenish the chemicals and the like. , It is possible to reduce the impact on the environment due to the discharge of chemicals.

Further, the downstream water supply channel 8 is provided with a water supply valve 7 that opens and closes the downstream water supply channel 8 to supply and shut off the washing water. The water supply valve 7 is provided on the downstream side of the gas-liquid mixing section 16. The upstream water supply channel 6 may be connected to a water pipe or the like as a water supply source. That is, the water supply system of the toilet bowl cleaning system 1 may be a direct water pressure system. In addition, instead of the mode in which the water supply valve 7 and the bypass valve 11 are individually provided, a mode in which a three-way switching valve or the like functioning as the water supply valve 7 and the bypass valve 11 is provided in the branch portion 10a may be provided.
In the toilet bowl cleaning system 1 having the above configuration, if the water supply valve 7 is opened with the bypass valve 11 closed, the foam cleaning water in which fine bubbles are mixed when passing through the gas-liquid mixing section 16 Is generated, and the foam wash water is supplied to the bowl portion 3 of the toilet bowl 2 via the downstream water supply channel 8. Such a cleaning operation may be performed by operating the cleaning operation unit provided on the toilet bowl 2, or may be performed by detecting the approach and separation of the human body by the human body detection sensor.

Further, if the water supply valve 7 is closed and the bypass valve 11 is opened, the foam wash water generated when passing through the gas-liquid mixing unit 16 as described above enters the drainage channel 9 via the bypass water supply channel 10. Supplied directly.
For example, a drainage channel cleaning mode for supplying foam cleaning water to the bypass water supply channel 10 may be executed after the cleaning operation as described above. That is, if the cleaning operation is performed, the toilet bowl cleaning mode for supplying foam cleaning water to the bowl portion 3 of the toilet bowl 2 is executed, and then the drainage channel cleaning mode for supplying foam cleaning water to the drainage channel 9 is executed. May be.

Further, if the cleaning operation is not executed until the preset predetermined time elapses, the toilet bowl cleaning mode and the drainage channel cleaning mode as described above or one of them may be executed. That is, the cleaning mode may be executed when the product is not used for a relatively long period of time.
Although not shown, such a cleaning operation is performed by providing a control circuit such as a CPU, a storage unit, and the like, and controlling each unit by a control unit provided at an appropriate position in the toilet bowl cleaning system 1. ..
In the drainage channel cleaning mode, the foam cleaning water may also be supplied to the bowl portion 3 of the toilet bowl 2. That is, if the water supply valve 7 and the bypass valve 11 are opened, the foam wash water is branched at the branch portion 10a, and the bowl portion 3 and the drainage channel of the toilet bowl 2 are branched through the downstream water supply channel 8 and the bypass water supply channel 10, respectively. It becomes possible to supply to each of 9.

The toilet bowl cleaning system 1 according to the present embodiment has the above-described configuration, so that the drainage channel 9 connected to the drainage portion 5 of the toilet bowl 2 can be effectively cleaned.
That is, the structure is such that the cleaning water supplied to the bypass water supply channel 10 is provided with the bubble mixing portion 13 in which air is bubbled and mixed. Therefore, the foam wash water can be directly supplied to the drainage channel 9 to which the bypass water supply channel 10 is connected without going through the toilet bowl 2. That is, the foam cleaning water can be supplied toward the drainage channel 9 without passing through the bowl portion 3 and the drainage portion 5. As a result, the reduction of bubbles contained in the foam cleaning water reaching the drainage channel 9 is suppressed as compared with the case where the foam cleaning water is supplied to the drainage channel 9 via the bowl portion 3 and the drainage unit 5. Can be done. As a result, filth such as urinary stones (calcium ions and fungi) adhering to the inner surface of the drainage channel 9 can be effectively removed by adsorbing to bubbles contained in the foam washing water, and the accumulation of urinary stones is effective. Can be suppressed.

Further, in the present embodiment, the bubble mixing portion 13 is provided so that bubbles are mixed in the upstream water supply channel 6 on the upstream side of the branch portion 10a to which the bypass water supply channel 10 is branched and connected. Therefore, the foam cleaning water can be supplied to the toilet bowl 2 as well, and the cleaning performance of the toilet bowl 2 can be improved.
Further, in the present embodiment, the foam wash water is branched at the branch portion 10a so that it can be simultaneously supplied to both the toilet bowl 2 and the bypass water supply channel 10. Therefore, both the bowl portion 3 and the drainage channel 9 of the toilet bowl 2 can be cleaned more effectively than those in which the foam wash water is selectively supplied to the toilet bowl 2 or the bypass water supply channel 10.

Next, another embodiment according to the present invention will be described with reference to the drawings.
In the following embodiments, the differences from the first embodiment will be mainly described, and the same configurations will be designated by the same reference numerals, and the description thereof will be omitted or briefly described.
FIG. 2 is a diagram schematically showing an example of the toilet bowl cleaning system according to the second embodiment.

The toilet bowl cleaning system 1A according to the present embodiment has a configuration in which the downstream water supply channel 8 is branched into a plurality of (three in the example) to supply cleaning water to the plurality of toilet bowls 2, 2 and 2. Each of the branch pipes 8A, 8A, 8A of the downstream water supply channel 8 is connected to the water supply sections 4, 4, 4 of the toilet bowls 2, 2, and 2. Further, the same water supply valves 7, 7 and 7 as described above are provided in each of the branch pipelines 8A, 8A and 8A.
Further, drainage pipes 9A, 9A, 9A connected to the horizontal pipe-shaped drainage passage 9 are connected to the drainage portions 5, 5 and 5 of the toilet bowls 2, 2 and 2, respectively. The downstream end of the bypass water supply channel 10 is connected to the connection portion between the drainage pipe line 9A and the drainage channel 9 connected to the toilet bowl 2 on the most upstream side in the drainage direction of the drainage channel 9. That is, the downstream end of the bypass water supply channel 10 is connected to the upstream end of the portion of the drainage channel 9 so as to extend in a substantially horizontal direction.
Further, a backflow prevention unit 12 similar to the above is provided on the downstream side portion of the bypass water supply channel 10. A similar bypass valve 11 as described above is provided on the upstream side of the backflow prevention portion 12 of the bypass water supply channel 10.

Further, also in the present embodiment, the bubble mixing portion 13A is provided so as to mix the bubbles in the upstream water supply channel 19 on the upstream side of the branch portion 10a to which the bypass water supply channel 10 is branched and connected. In the present embodiment, the upstream end of the upstream water supply channel 19 is connected to the water storage section 18. That is, the water supply system of the toilet bowl cleaning system 1A is not a direct water pressure type but a tank type (pump pressurization type).
Washing water is supplied to the water storage unit 18 from a water supply pipe 6A such as a water pipe. The water storage unit 18 is provided with an appropriate level meter so that a predetermined level of washing water is stored.

In the present embodiment, the bubble mixing unit 13A is configured to generate fine bubbles by reducing the pressure of the washing water in which air is pressurized and dissolved to generate bubble washing water in which fine bubbles are mixed. With such a configuration, finer bubbles can be mixed in the washing water as compared with the mode in which the fine bubbles are mixed in the washing water by shearing or crushing due to the sudden pressure change action as described above.
The air bubble mixing unit 13A includes an air introduction pipe 14A for introducing air, and a pump 15A for sucking in the air introduced from the air introduction pipe 14A and the washing water of the water storage unit 18. Further, the bubble mixing portion 13A is provided with a dissolution tank 17 which is connected to the discharge side of the pump 15A and is provided with a gas-liquid mixing tank, a gas-liquid separation tank, and the like for dissolving air in the washing water by pressurization by the pump 15A. There is. Further, the bubble mixing portion 13A includes a Venturi tubular pressure releasing portion 16A that releases the pressure on the downstream side of the melting tank 17.

In the toilet bowl cleaning system 1A having the above configuration, if the pump 15A is started with the bypass valve 11 closed and the water supply valve 7 of the toilet bowl 2 that has been cleaned is opened, fine bubbles are mixed. The foam wash water is supplied to the bowl portion 3 of the toilet bowl 2 that has been washed.
Further, when the pump 15A is started and the bypass valve 11 is opened, the foam washing water is directly supplied to the drainage channel 9 via the bypass water supply channel 10 as in the first embodiment. Further, if the pump 15A is started and the bypass valve 11 is opened with all the water supply valves 7, 7, 7 closed, the foam washing water can be supplied only to the bypass water supply channel 10 side. Further, in the same manner as described above, the foam wash water can be simultaneously supplied to both the bowl portion 3 and the bypass water supply channel 10 of at least one toilet bowl 2.

The toilet bowl cleaning system 1A according to the present embodiment having the above configuration also has substantially the same effect as that of the first embodiment. Further, in the present embodiment, the drainage channels 9 connected to the drainage portions 5, 5 and 5 of the plurality of toilet bowls 2, 2 and 2 can be effectively cleaned.
It should be noted that some of the configurations described in each of the above embodiments may be rearranged or combined to be applied. Further, the configuration of each part of the toilet bowl cleaning system 1, 1A according to each of the above embodiments is only an example, and various other modifications are possible.
Further, in each of the above embodiments, the toilet bowl 2 cleaned by the toilet bowl cleaning systems 1 and 1A is used as a urinal, but a crouching type or a sitting type toilet bowl may be used.

1,1A Toilet bowl cleaning system 2 Toilet bowl 5 Drainage section 6,19 Upstream water supply channel (water supply channel)
8 Downstream water supply channel (water supply channel)
9 Drainage channel 10 Bypass water supply channel 10a Branch part 13, 13A Air bubble mixing part

Claims (3)

A water supply channel that supplies wash water to the toilet bowl, a bypass water supply channel that is branched from this water supply channel and is connected to a drainage channel connected to the drainage portion of the toilet bowl, and a wash supply that is supplied to the bypass water supply channel. It is provided with a bubble mixing section in which air is bubbled and mixed in water, and a water storage section connected to the upstream end of the water supply channel.
The toilet bowl cleaning system is characterized in that the air bubble mixing unit includes a pressure release unit that mixes fine air bubbles into the cleaning water by reducing the pressure. In claim 1,
The drainage channel is connected to a plurality of drainage portions of the toilet bowl.
A toilet bowl cleaning system, characterized in that the downstream end of the bypass water supply channel is connected to the upstream end of a portion of the drainage channel that extends in a substantially horizontal direction. In claim 1 or 2,
The air bubble mixing portion is connected to a pump that sucks in air introduced from an air introduction pipe provided on the upstream side and cleaning water of the water storage portion, and a discharge side of the pump, and cleans the air by pressurization by the pump. A toilet bowl cleaning system including a dissolution tank for dissolving in water, wherein the pressure release portion is provided on the downstream side of the dissolution tank.

Images