TWI573915B - Flush toilet apparatus - Google Patents

Description

Water flushing toilet device

The present invention relates to an improvement of a water flushing toilet apparatus having a function of automatically washing a toilet bowl portion with a medicament.

A water flushing toilet apparatus having the above-described functions is described, for example, in Patent Document 1 below. In other words, in Patent Document 1, a medicine tank that communicates with the washing water path of the toilet device is provided, and the edge water supply opening and closing valve and the medicine tank opening and closing valve are synchronously controlled, thereby washing the toilet bowl portion. Further, Patent Document 2 describes that in the water flushing device having such functions, the timing of stopping the supply of the chemical to the washing water is earlier than the timing of stopping the supply of the washing water in the washing water passage to prevent the medicine. Blocked.

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 5-214757

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2008-138422

In addition, when the timing control of the supply of the drug is stopped as described above, the foam of the washing water can be well dispersed in the entire water accumulated in the toilet bowl. However, the water injection flow rate to the toilet bowl portion as a condition affecting the dispersion of the washing water foam is not always constant. In addition, the temperature that affects the fluidity of the drug is not certain. Therefore, depending on the conditions under various conditions, the foam may not be well dispersed in the entire water remaining after the toilet bowl is washed.

In view of the above problems, it is an object of the present invention to provide a water flushing toilet apparatus in which the foam can be well dispersed in the entire water after washing of the toilet bowl portion even if the flow rate or temperature of the washing water changes.

In order to solve the above problems, the water flushing toilet apparatus of the present invention has a post-washing function of washing the toilet bowl portion while receiving the draining command and draining the toilet bowl portion, while putting the medicine into the toilet bowl portion. The method includes a flow sensor that detects a water injection flow rate to the toilet bowl portion, and a control unit that presets a medicine injection time and a water injection duration after the medicine input is completed, and flows to the toilet bowl according to the flow rate The injection flow rate of the part is adjusted, and the waiting time of the medicine input after the start of washing is adjusted.

In addition, in order to solve such a problem, the water flushing toilet apparatus of the present invention has a post-washing of the toilet bowl portion by putting a medicine into the toilet bowl portion after receiving the drain command and draining the toilet bowl portion. a net function, comprising: a temperature sensor; a drug discharge pump capable of measuring a discharge amount of the drug; and a control unit that pre-sets the overall time of washing and the drug is finished The duration of the water injection after the formation, and the waiting time for the medicine input and the time for the medicine to be injected after the start of the washing are adjusted according to the temperature detected by the temperature sensor.

When the structure for detecting the flow rate of the water flowing into the toilet bowl portion and adjusting the waiting time for the medicine after the start of the washing is configured, the foam can be well dispersed in the entire water regardless of the magnitude of the water injection flow rate during the washing.

When the drug discharge pump having the temperature sensor and the measurable drug discharge amount is configured, and the structure of the drug input waiting time and the drug input time after the start of the washing is adjusted based on the detected temperature, the washing is performed. Whether the temperature is high or low, the foam can be well dispersed to the entire water.

1‧‧‧Water flushing toilet device

1a‧‧‧Seat

1b‧‧‧Backrest

1A‧‧‧Water flushing toilet device

11‧‧‧Water injection valve

12‧‧‧Flow Sensor

13‧‧‧ Toilets

14‧‧‧Drainage mechanism

15‧‧‧Pharmaceutical tank

16‧‧‧Drug pump

16A‧‧‧Drug pump that can measure the amount of drug discharged

17‧‧‧Control Department

18‧‧‧Drain switch

19‧‧‧Flow adjustment switch

20‧‧‧ Large diameter pipeline

21‧‧‧Drug unit

22‧‧‧Small diameter pipe

23‧‧‧Bending trap

24‧‧‧temperature sensor

F1‧‧‧ flow

F2‧‧‧ flow

F3‧‧‧ flow

F4‧‧‧ flow

P1‧‧‧ water pipes

P2‧‧‧ sewage pipe

T‧‧ forms

Fig. 1 is a functional block diagram showing the configuration of a main part of a water flushing toilet apparatus of the first embodiment.

[Fig. 2] (a) and (b) are longitudinal cross-sectional views showing a specific structure of a toilet apparatus of a first embodiment.

Fig. 3 is a functional block diagram showing the configuration of a main part of a water flushing toilet apparatus of a second embodiment.

Recently, the water flushing toilet apparatus has a post-cleaning function that not only discharges the sewage in the toilet bowl portion when receiving the draining command (operation), but also puts in the water while washing the toilet bowl portion while filling the water. The present invention is directed to the subsequent cleaning function. Hereinafter, an example of an embodiment of the embodiment will be described in detail with reference to FIGS. 1, 2, and 1.

Fig. 1 is a functional block diagram showing the configuration of a main part of a water flushing toilet apparatus of the present embodiment. In the figure, the flow path of the washing water or the sewage is indicated by a white arrow (large). Specifically, a flow path formed by the water injection valve 11, the flow rate sensor 12, the toilet bowl portion 13, the drainage mechanism 14, and the like is formed between the water pipe P1 and the sewage pipe P2.

In addition, the flow path of the drug for administering the drug is indicated by a white arrow (small). The drug flow path is composed of a drug tank 15, a drug discharge pump (hereinafter also referred to simply as a pump or a discharge pump) 16, and the like. The chemical flow path merges with the flow path of the washing water at an intermediate point between the water injection valve 11 and the toilet bowl portion 13.

The control unit 17 controls the water injection valve 11, the drain mechanism 14, the pump 16, and the like according to the drain command, and discharges the sewage from the toilet bowl portion 13 and washes it. The washing water remaining in the toilet bowl portion 13 after the post-washing becomes water.

Further, the toilet device 1 may be provided with a flow rate adjustment switch 19 that receives an increase/decrease command of the water injection flow rate in addition to the drain switch 18 that receives the drain command.

2(a) and 2(b) are longitudinal cross-sectional views showing a specific structure of the toilet apparatus of the present embodiment, wherein (a) shows a state during standby and (b) shows a state at the time of drainage.

As shown, the toilet device 1 is a Western device. A backrest portion 1b is provided behind the seat portion 1a forming the toilet bowl portion 13. The water injection valve 11 or the drainage mechanism 14 is housed in the backrest portion 1b. In the toilet device 1, a mechanism for washing a part with warm water or the like may be further provided. Here, however, a mechanism that is not particularly relevant to the present invention, the illustration and description of the structure are omitted.

The water injection valve 11 is constituted, for example, by a solenoid valve or the like, and its water inlet is connected to a water pipe (not shown), and a flow rate sensor 12 is disposed at the water outlet. The downstream side of the flow sensor 12 is connected to the large diameter pipe 20. The large-diameter pipe 20 communicates with a water injection port (not shown) formed at an upper edge portion of the toilet bowl portion 13. Above the water injection valve 11, a drug unit 21 in which the drug tank 15 and the pump 16 are integrated is disposed. The discharge port of the pump 16 is connected to the small-diameter line 22. The small diameter line 22 merges with the large diameter line 20 in the vicinity of the flow sensor 12. The drain mechanism 14 is provided with a curved trap 23 composed of a deformable resin pipe or the like. The curved trap 23 is disposed in the airtight container 24. The front end portion of the curved trap 23 is vertically displaced by the action of a motor not shown. Specifically, as shown in FIG. 2( a ), when the tip end portion of the curved trap 23 is displaced upward, the curved trap 23 has a function as a drain trap. On the other hand, as shown in FIG. 2(b), when the tip end portion of the curved trap 23 is displaced downward, the curved trap 23 simply functions as a drain pipe. In Fig. 2(b), the flow of the water injected into the toilet bowl 13 is indicated by an arrow.

In the present embodiment, the flow rate sensor 12 that detects the flow rate of water injection and the control unit 17 are provided. The control unit 17 sets the medicine injection time and the water injection duration after the completion of the medicine input, and adjusts the medicine input waiting time after the start of the washing according to the water injection flow rate. Therefore, even if the water injection flow rate changes due to factors such as a change in the water pressure of the water pipe P1, it can be cleaned after being controlled at an appropriate timing. Therefore, in the present embodiment, the foam can be well dispersed to the entire water regardless of the flow rate of the water injection. Further, even in the case where the flow rate of the water injection is changed by the flow rate adjusting switch 19, the effect that the foam is well dispersed to the entire water can be obtained.

Hereinafter, a specific example of the timing control of the cleaning after the present embodiment will be described.

Tables 1(a) and (b) are examples of the timing control of the sewage discharge and the post-washing in the present embodiment. Here, the flow rate F1 of Table 1 (a) indicates a control example in which the water injection flow rate is large, and the flow rate F2 in Table 1 (b) indicates a control example in which the water injection flow rate is small.

According to the control flow rate which is carried out by the drainage command, the whole process consists of three processes: a pre-washing treatment for water injection, a drainage treatment for simultaneous water injection and sewage discharge, and a post-washing treatment for introducing a chemical while filling water. The post-washing treatment consists of three stages: a stage in which water is injected, a stage in which the medicine is continuously injected while the water is continuously injected, and a stage in which the water is continuously poured after the completion of the medicine input.

In the present embodiment, the pre-washing time and the drainage time are both constant regardless of the water injection flow rate. Comparing the flow rates F1 of Table 1 (a) with the flow rate F2 of (b), it can be seen that the times are the same in both flows.

Further, in the present embodiment, the total amount of the washing water used for the post-washing is constant regardless of the water injection flow rate. If a certain amount of washing water is always allowed to flow through the toilet bowl portion 13, it is expected that the large-particle dirt has a sufficient washing effect.

Further, in the present embodiment, the medicine injection time and the water injection duration are also constant. If the drug input time is constant, the amount of the drug to be administered is also approximately constant. In this way, if the chemical injection time and the water injection duration are appropriately managed, the foam can be well dispersed in the entire water after the post-washing, and therefore it is expected that the small particles have a sufficient washing effect.

We can adjust by adjusting the overall time of washing and the waiting time of the medicine to achieve the above, regardless of the water injection flow rate, the total amount of washing water used for post-washing, and the time of drug injection. And the duration of water injection is a certain result.

That is, since the total amount of the washing water used for the post-washing is constant, if the total amount is divided by the value of the water-injecting flow rate detected by the flow rate sensor 12, the overall washing after the calculation can be predicted. time. Furthermore, the medicine input waiting time can be calculated by subtracting the medicine input time and the water injection duration from the calculated total time.

Comparing the flow rate F1 of Table 1 (a) with the flow rate F2 of (b), it can be seen that the drug injection time and the water injection duration are equal in the flow rates F1 and F2, and the overall cleaning time and the drug input waiting time are at the flow rate F1. In the case, it is shorter than in the case of the flow rate F2. This is because the flow rate F1 is larger than the flow rate F2.

Next, another example of the embodiment of the present invention will be described based on Fig. 3, Table 2, and Table 3.

Fig. 3 is a functional block diagram showing the configuration of the main part of the water flushing toilet apparatus of the present embodiment. In the figure, the flow path of the washing water or the sewage is indicated by a white arrow (large). In addition, the reagent path for administering the drug is indicated by a white arrow (small). The same elements as those in Fig. 1 are denoted by the same reference numerals and the description is omitted.

In the present embodiment, the toilet device 1A is provided with a temperature sensor 24 that can detect the temperature of the installation place, and a drug discharge pump (hereinafter also referred to as a pump or discharge pump) 16A that can measure the amount of discharged medicine. The difference between the foregoing embodiments.

The control unit 17 sets the total time after the cleaning and the water injection duration after the completion of the medicine input, and adjusts the medicine input waiting time and the medicine input time based on the temperature detected by the temperature sensor 24. At this time, the medicine injection time is adjusted so that the discharge amount of the pump 16A is constant. Therefore, even when the characteristics such as the fluidity of the drug change due to the change in the temperature, it is possible to control and wash it at an appropriate timing. Therefore, in the present embodiment, the foam can be well dispersed to the entire water regardless of the temperature. Specific examples of the timing control will be described below.

Tables 2(a) and (b) are examples of the timing control of the sewage discharge and the post-washing in the present embodiment. Here, Table 2(a) shows an example of the control flow rate at a high temperature, and Table 2(b) shows an example of the control flow rate at a low temperature.

Similarly to the above-described embodiment, the control flow rate corresponding to the drain command is composed of three processes of a pre-washing process, a draining process, and a post-washing process. In addition, the post-washing is also composed of three stages: a stage in which the water is poured, a stage in which the medicine is continuously injected while the water is poured, and a stage in which the water is continuously poured after the completion of the medicine input.

In the present embodiment, the water injection flow rate is assumed to be approximately constant, and the pre-washing time and the drainage time are constant. Comparing the flow rate F3 of Table 2(a) with the flow rate F4 of (b), it can be seen that the times are the same in the two flow rates.

Further, in the present embodiment, the overall time for post-cleaning is constant. Therefore, the total amount of washing water used for post-washing is also approximately constant. If the total amount is an appropriate amount, it is expected that the large-particle dirt has a sufficient washing effect. If the flow rate F3 and the flow rate F4 are compared, it can be seen that the overall time of the post-washing is the same in both flows.

Further, in the present embodiment, the waiting time for the medicine and the time for injecting the medicine are adjusted according to the temperature, and the water injection duration is constant. In the adjustment of the waiting time of the medicine and the time of the medicine input, the latter is determined first.

Here, the pharmaceutical injection time will be described in detail. When the power source condition is constant, the amount of medicine discharged per unit time of the pump 16A tends to be smaller as the temperature is lower. The reason for this is considered to be because the fluidity of the drug is lowered at a low temperature or the operation of the pump 16A is delayed. However, in the case of a pump capable of measuring the amount of drug discharged, when the power source condition is constant, the amount of drug discharged per unit time is a function relationship with the temperature. This functional relationship can be determined in advance by experiments and the like. Therefore, when the function relationship is introduced, the control unit 17 can determine the medicine injection time for making the medicine discharge amount constant according to the temperature.

Since the overall time of the post-washing and the duration of the water injection are constant, the medicine injection waiting time can be calculated by subtracting the water injection duration from the overall time and the medicine input time determined as described above. By appropriately managing the administration time of the medicine and the duration of the water injection as described above, the foam can be well dispersed in the entire water remaining after the post-washing, so that it is expected to have a sufficient washing effect on the dirt of the small particles.

When the flow rate F3 and the flow rate F4 are compared, the chemical injection time is known, and in the case of the flow rate F3, it is shorter than in the case of the flow rate F4. On the other hand, the waiting time of the medicine input was opposite to the medicine input time, and it was found that the flow rate F3 was longer than that in the case of the flow rate F4. This is because the flow rate F3 is below the high temperature, so that the amount of discharged medicine per unit time of the pump 16A is large.

Further, when the pump 16A is constituted by, for example, a tube pump, the discharge amount of the medicine can be accurately measured from the number of times of operation (motor rotation speed, etc.). However, when it is a tube pump, the measuring tube becomes hard at a low temperature, so the amount of medicine discharged per unit time is of course small.

Table 3 (Table T) is an example of a reference table for determining the waiting time for the medicine to be administered and the time for injecting the medicine based on the temperature in the present embodiment.

In the table T, for each of the cases where the temperature is 10 ° C or lower, 10 to 20 ° C, and 20 ° C or higher, an appropriate medicine input waiting time, a medicine injection time, and a water injection duration are recorded. When the forms are prepared in advance, the control unit 17 does not need to perform the above-described arithmetic processing or the like, and can be cleaned according to the table at an appropriate timing.

1‧‧‧Water flushing toilet device

11‧‧‧Water injection valve

12‧‧‧Flow Sensor

13‧‧‧ Toilets

14‧‧‧Drainage mechanism

15‧‧‧Pharmaceutical tank

16‧‧‧ spitting pump

17‧‧‧Control Department

18‧‧‧Drain switch

19‧‧‧Flow adjustment switch

P1‧‧‧ water pipes

P2‧‧‧ sewage pipe

Claims (2)

A water flushing toilet apparatus having a post-washing function of washing a toilet bowl portion while injecting a water to a toilet bowl portion after receiving a drain command and draining the toilet bowl portion, wherein the flow is characterized by: a sensor that detects a water injection flow rate to the toilet bowl portion; and a control unit that presets the medicine injection time and the water injection duration after the medicine input is completed, and adjusts according to the water injection flow rate to the toilet bowl portion Waiting time for the medicine after the start of washing. The water flushing toilet device of claim 1, further comprising: a flow regulating switch for adjusting a water injection flow rate to the toilet bowl portion.