JP2013204262A - Toilet bowl washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet bowl washing device capable of successfully executing toilet bowl washing by supplying a stable amount of water to a toilet bowl body.SOLUTION: The toilet bowl washing device includes a first tank 11, a toilet bowl water supply passage 14, a jet pump device 20 having an inflow port 20A and a spray nozzle 20B, a first water supply passage 21 for supplying washing water to the spray nozzle 20B, a second tank 12 in which washing water is stored at a position higher than a full water level X in the first tank 11, which has an outflow port 12D at the lower end, from which the overflowing washing water flows into the first tank 11, a first on-off valve 31 for closing the outflow port 12D when a water level in the second tank 12 is down to a first set water level Y1, a second on-off valve 32 provided in the first water supply passage 21 so as to be opened/closed at a second set water level Z higher than the first set water level Y1 and higher than the full water level X, a second water supply passage 22 for supplying washing water into the second tank 12, and a third on-off valve 33 provided in the second water supply passage 22 so as to be opened/closed at the full water level X.

Description

  The present invention relates to a toilet bowl cleaning device.

  24-26 of patent document 1 is disclosing the conventional toilet bowl washing | cleaning apparatus. This toilet bowl cleaning apparatus includes a first tank that stores cleaning water, and a second tank that is placed on the bottom surface of the first tank and has an upper end opened. The second tank has an upper end at a position lower than the full water level of the first tank. The second tank has an opening penetrating the side surface and an opening / closing lid that opens and closes the opening. This toilet flushing device is a jet having an inflow port provided at an upstream end of a toilet water supply channel that is disposed in a second tank and communicates with a toilet bowl, and an injection nozzle that ejects wash water toward the inflow port. A pump device is provided. In addition, the toilet bowl cleaning device includes a water supply channel that supplies cleaning water to the spray nozzle. Furthermore, this toilet bowl cleaning apparatus is provided in the middle of the water supply channel, and includes a flush valve that opens and closes the water supply channel.

  In this toilet bowl cleaning device, when the flush valve is operated to open the water supply channel, cleaning water is ejected vigorously from the injection nozzle. The water in the second tank is drawn into the toilet water supply channel from the inlet by the water flow of the washing water ejected from the injection nozzle. For this reason, this toilet bowl washing | cleaning apparatus can supply a large flow volume of washing water to a toilet bowl part.

  Moreover, this toilet bowl washing | cleaning apparatus can change the quantity of the wash water supplied to a toilet bowl part by opening and closing the opening-and-closing lid | cover of a 2nd tank. That is, in a state where the opening / closing lid of the second tank is opened, the wash water stored outside the second tank can flow into the second tank from the opening of the second tank. In this state, when the water supply channel is opened by operating the flush valve, the wash water that is lower than the upper end of the second tank and stored outside the second tank is also brought into the toilet drainage channel from the inlet by the jet pump device. It can be pulled in and supplied to the toilet bowl. On the other hand, in a state where the opening / closing lid of the second tank is closed, the wash water stored at the position lower than the upper end of the second tank and outside the second tank cannot flow into the second tank. The washing water stored at the position lower than the upper end of the second tank and outside the second tank cannot be supplied to the toilet bowl by the jet pump device. In this way, more wash water can be supplied to the toilet bowl when the opening / closing lid of the second tank is open than when the lid is closed. Thus, since this toilet bowl washing | cleaning apparatus can change the flow volume of the washing water supplied to a toilet bowl part according to the use condition of a flush toilet bowl, toilet bowl washing | cleaning can be performed favorably.

Japanese Patent No. 3312625

  However, in the toilet bowl cleaning device of Patent Document 1, the water supply channel is opened and closed by a flush valve. While the flush valve is open, the amount of washing water that flows while the valve is open varies depending on the feed water pressure. For this reason, in this toilet bowl cleaning apparatus, the amount of cleaning water ejected from the injection nozzle varies depending on the water supply pressure, and the amount of cleaning water supplied to the toilet bowl may vary. For this reason, there is a possibility that the toilet cleaning device may not sufficiently discharge filth and the like.

  The present invention has been made in view of the above-described conventional situation, and provides a toilet cleaning device that can supply a stable amount of water to the toilet body and can perform toilet cleaning satisfactorily. It is said.

The toilet bowl cleaning device of the present invention is a toilet bowl cleaning apparatus that supplies cleaning water to the toilet bowl body,
A first tank for storing wash water;
A toilet water supply channel communicating the first tank and the toilet body,
Arranged at a position lower than the full water level in the first tank in the standby state before performing toilet flushing, an inlet provided at the upstream end of the toilet water supply channel, and flush water is ejected toward the inlet A jet pump device having an injection nozzle that
A first water supply channel for supplying cleaning water to the spray nozzle;
Wash water is stored at a position higher than the full water level of the first tank, and an outlet through which the stored wash water flows out into the first tank is provided at the lower end portion. A second tank flowing into one tank;
A first on-off valve that closes the outlet when the wash water stored in the second tank flows out from the outlet into the first tank and the water level in the second tank drops to a first set water level; ,
A first water supply path that opens and closes at a second set water level, the water level in the second tank being higher than the first set water level and higher than the full water level in the first tank; Two on-off valves,
A second water supply channel that branches the first water supply channel and supplies cleaning water into the second tank;
A third open / close valve is provided in the second water supply path and opens or closes when the water level in the first tank is at the full water level.

  This toilet flushing apparatus can perform toilet flushing as described below.

  In the toilet cleaning device, in the standby state before the toilet cleaning is performed, the first tank and the second tank store the cleaning water in a full water level. In this state, the first on-off valve is operated to open the outlet of the second tank. Thereby, this toilet bowl washing | cleaning apparatus starts toilet bowl washing | cleaning. When the outlet of the second tank is opened, the wash water in the second tank flows out from the outlet into the first tank, and the water level in the second tank is lowered. And if the water level in a 2nd tank falls to a 2nd setting water level, a 2nd on-off valve will open and a 1st water supply path will open. When the first water supply path is opened, cleaning water is ejected from the injection nozzle, and the cleaning water in the first tank is drawn into the inflow port by the water force. For this reason, this toilet bowl washing | cleaning apparatus can supply a large flow of washing water to a toilet bowl main body. And the water level in a 1st tank and a 2nd tank continues falling.

  When the water level in the second tank drops to the first set water level, the first on-off valve closes the outlet. During this time, when the water level in the first tank falls from the full water level, the third on-off valve is opened. As a result, the wash water flows from the second water supply channel into the second tank. Then, after the first on-off valve closes the outlet, the water level in the second tank rises.

  When the water level in the second tank rises to the second set water level, the second on-off valve is closed and the first water supply channel is closed. Thereby, the ejection of the washing water from the injection nozzle is stopped, and the supply of the washing water to the toilet body is finished.

  Thus, in this toilet bowl cleaning device, the second on-off valve opens and closes due to the change in the water level in the second tank. The flow rate of the wash water supplied from the second water supply channel to the second tank varies depending on the supply water pressure. That is, the flow rate of the cleaning water supplied to the second tank increases compared to the case where the higher feed water pressure is lower. For this reason, compared with the case where the one where supply water pressure is high is low, the water level in a 2nd tank rises to a 2nd setting water level early. Therefore, the second on-off valve closes earlier than when the higher feed water pressure is lower. That is, compared with the case where the one where supply water pressure is high is low, ejection of the wash water from an injection nozzle stops early, and supply of the wash water to a toilet body ends early.

  Moreover, the flow rate of the washing water that flows from the injection nozzle through the first water supply channel is higher when the supply water pressure is higher than when the supply water pressure is lower. In addition, the flow rate of the wash water in the first tank drawn into the inflow port increases when the flow rate of the wash water ejected from the injection nozzle is strong (the flow rate is high) compared to the case where the water flow is weak (the flow rate is low). . For this reason, compared with the case where the one where supply water pressure is high is low, the flow volume of the wash water supplied to the toilet bowl body increases, and the supply of the wash water to the toilet bowl body is terminated early. As described above, the toilet cleaning device can reduce the variation in the amount of cleaning water supplied to the toilet body even when the supply water pressure fluctuates.

  Therefore, the toilet bowl cleaning apparatus of the present invention can supply a stable amount of water to the toilet bowl body and perform toilet bowl cleaning well.

  The water level of the second tank continues to rise due to the wash water flowing from the second water supply channel. Then, the wash water overflowing from the second tank flows into the first tank, and the water level in the first tank rises. When the water level in the first tank rises to the full water level, the third on-off valve is closed and the second water supply channel is closed. Thereby, the toilet bowl cleaning apparatus stores the flush water in a state where the first tank and the second tank are full, and returns to the standby state before the toilet flushing is executed.

1 is a schematic view of a flush toilet of Example 1. FIG. It is the schematic of the toilet bowl washing | cleaning apparatus of Example 1, Comprising: (I) shows a toilet bowl washing standby state, (II) shows the state which started the supply of the washing water to a toilet bowl part. It is the schematic of the toilet bowl washing | cleaning apparatus of Example 1, Comprising: (III-1) shows the middle of the small washing operation, (III-2) shows the middle of the large washing operation. It is the schematic of the toilet bowl washing | cleaning apparatus of Example 1, Comprising: (IV) shows the state which complete | finished the washing water supply to a toilet bowl part. 3 is a schematic view of a flush toilet of Example 2. FIG. 6 is a schematic view of a flush toilet bowl of Example 3. FIG. It is the schematic of the flush toilet bowl of Example 4.

  A preferred embodiment of the present invention will be described.

  A plurality of first set water levels of the present invention are set, and when the water level in the second tank falls to the selected first set water level, the first on-off valve can close the outlet. In this case, when the higher first set water level is selected, the time until the water level in the second tank rises to the second set water level can be shortened compared to the case where the lower first set water level is selected. it can. That is, since the first water supply channel can be closed early and the ejection of washing water from the injection nozzle can be stopped early, the amount of washing water supplied to the toilet body can be reduced. Thus, since this toilet bowl washing | cleaning apparatus can change the quantity of the washing water supplied to a toilet bowl part according to the use condition of a flush toilet bowl, toilet bowl washing | cleaning can be performed favorably.

  A fourth opening / closing mechanism that is provided in the first water supply channel and closes the first water supply channel by closing the water level in the first tank before the water level is lowered to a level at which air flows in from the inlet of the jet pump device. A valve may be provided. In this case, it is possible to reliably prevent the cleaning water ejected from the jet nozzle of the jet pump device from drawing air into the inflow port. For this reason, generation | occurrence | production of the sound which a jet pump apparatus draws in air can be prevented reliably.

  Next, Examples 1 to 4 embodying a flush toilet equipped with the toilet bowl cleaning device of the present invention will be described with reference to the drawings.

<Example 1>
As shown in FIG. 1, the flush toilet of Example 1 includes a toilet body 1 and a toilet cleaning device 10. The toilet body 1 includes a toilet bowl 2 and a toilet drainage channel 3 communicating with the downstream side of the toilet bowl 2.

  The toilet bowl cleaning device 10 is disposed behind the toilet bowl body 1 and at a position lower than the upper surface of the toilet bowl body 1. For this reason, this flush toilet has a low silhouette. The toilet bowl cleaning device 10 includes a first tank 11, a second tank 12, a third tank 13, a toilet water supply channel 14, a jet pump device 20, a first water supply channel 21, a second water supply channel 22, a first on-off valve 31, a first A second on-off valve 32 and a third on-off valve 33 are provided.

  The first tank 11 stores cleaning water. The second tank 12 is disposed in the upper part of the first tank 11. A part of the wash water stored in the second tank 12 is stored at a position higher than the full water level X1 of the first tank 11 in the standby state before the toilet cleaning is executed. That is, the second tank 12 stores wash water at a position higher than the full water level X1 of the first tank 11. The second tank 12 has a bottom surface 12A and a side surface 12B that rises from the outer periphery of the bottom surface 12A, and forms an upper end opening 12C that opens upward. The second tank 12 has an outlet 12D that penetrates the bottom surface 12A as the lower end. The washing water stored in the second tank 12 can flow out into the first tank 11 through the outlet 12D. Further, the washing water overflowing from the upper end of the side surface 12 </ b> B of the second tank 12 can flow into the first tank 11.

  The third tank 13 is disposed in the first tank 11. The third tank 13 has an upper surface 13A and a side surface 13B extending downward from the outer peripheral edge of the upper surface 13A, and has a lower end opening 13C that opens downward in the vicinity of the lower portion in the first tank 11. . The third tank 13 has a toilet water supply channel 14 communicating with the upper end. An inflow port 20 </ b> A is formed at the upper end of the third tank 13 at the upstream end of the toilet water supply channel 14. The inflow port 20A is disposed at a position lower than the full water level X1 of the first tank 11 in the standby state before the toilet cleaning is performed.

  The downstream end of the toilet water supply channel 14 communicates with the rear part of the toilet bowl 2 of the toilet body 1. The wash water flowing out from the downstream end of the toilet water supply channel 14 flows down to the surface of the toilet bowl 2 while flowing in one direction along the upper peripheral surface of the toilet bowl 2. Thus, the wash water flowing out from the downstream end of the toilet water supply channel 14 forms a flow that swirls the toilet bowl 2 in a plan view, and collects filth and the like at the center of the toilet bowl 2 to flush the toilet drainage channel. 3 to flow into

  The jet pump device 20 includes an inflow port 20A and an injection nozzle 20B that is disposed in the third tank 13 and ejects cleaning water toward the inflow port 20A. As for the 1st water supply path 21, the downstream end is connected to the injection nozzle 20B, and the upstream end is connected to the water supply source. For this reason, the 1st water supply path 21 can supply washing water to jet nozzle 20B. The second water supply path 22 is formed by branching the first water supply path 21, and the downstream end thereof is disposed facing the upper end opening 12 </ b> C of the second tank 12. The second water supply path 22 can supply the wash water flowing out from the downstream end to the second tank 12.

  The first on-off valve 31 closes the outlet 12D when the water level in the second tank 12 drops to the first set water levels Y1, Y2 (see FIG. 3). Although the detailed description of the first on-off valve 31 is omitted, the first on-off valve 31 is used in a low tank of a flush toilet, and has the same structure as a drain valve that can switch between large and small washing. That is, the first opening / closing valve 31 has two first set water levels for closing the outlet 12D (Y1, Y2), and the two different first set water levels Y1, Y2 in the second tank 12 are set. One can be selected and driven to close the outlet 12D.

  The first on-off valve 31 has an operation part 31A for opening the outlet 12D. This operation part 31A selectively performs large washing with a large amount of washing water supplied to the toilet bowl 2 and small washing with less washing water supplied to the toilet bowl 2 than large washing. It is formed to be able to. When the operation unit 31A is operated so as to execute the large washing, the first set water level Y2 having the lower water level in the second tank 12 when the first opening / closing valve 31 closes the outlet 12D is selected, and the small washing is performed. When the operation unit 31A is operated so as to execute the above, the first set water level Y1 with the higher water level in the second tank 12 when the first opening / closing valve 31 closes the outlet 12D is selected. That is, the first on-off valve 31 closes the outlet 12D when the large washing is performed and the water in the second tank reaches the first set water level Y2, which is lower, and when the small washing is performed, When the water in the two tanks reaches the first set water level Y1, the outlet 12D is closed.

  The second on-off valve 32 is provided in the first water supply path 21. The second on-off valve 32 is a ball tap having a float 32 </ b> A that moves up and down in conjunction with a change in the water level in the second tank 12. The second open / close valve 32 is set so that the water level in the second tank 12 is higher or lower than the first set water levels Y1 and Y2 and is higher or lower than the full water level X1 of the first tank 11. ing.

  The third on-off valve 33 is provided in the second water supply path 22. The third on-off valve 33 is a ball tap having a float 33 </ b> A that moves up and down in conjunction with a change in the water level in the first tank 11. The third on-off valve 33 is set so that the water level in the first tank 11 is opened or closed at the full water level X1.

  Next, the toilet cleaning operation of the flush toilet having such a configuration will be described.

  As shown in FIG. 2 (I), in the flush toilet, the first tank 11 and the second tank 12 store flush water in the full water level X1, X2 in the standby state before the toilet cleaning is performed. doing. In this state, as shown in FIG. 2 (II), the operation part 31A of the first on-off valve 31 is operated to open the outlet 12D of the second tank 12. Thereby, this toilet bowl washing | cleaning apparatus 10 starts toilet bowl washing | cleaning. When the outlet 12D of the second tank 12 is opened, the wash water in the second tank 12 flows out from the outlet 12D into the first tank 11, and the water level in the second tank 12 is lowered. On the other hand, since the wash water flows into the first tank 11 from the second tank 12, the water level in the first tank 11 slightly rises at the initial stage when toilet flushing is performed.

  And if the inside of the 2nd tank 12 falls to the 2nd setting water level Z, the 2nd on-off valve 32 will open, and the 1st water supply way 21 will open. When the first water supply passage 21 is opened, washing water is ejected from the injection nozzle 20B, and the washing water in the third tank 13 (first tank 11) is drawn into the inflow port 20A by the water flow. For this reason, this toilet bowl washing | cleaning apparatus 10 can supply the large amount of washing water to the toilet bowl part 2 of the toilet bowl main body 1. FIG. And the water level in the 1st tank 11 and the 2nd tank 12 continues falling.

  When the water level in the second tank 12 drops to the first set water levels Y1 and Y2, as shown in FIGS. 3 (III-1) and (III-2), the first on-off valve 31 closes the outlet 12D. At this time, when the operation unit 31A is operated so as to execute the small cleaning, as shown in FIG. 3 (III-1), about half of the cleaning water remains in the second tank 12 (the water level is the first level). The first on-off valve 31 closes the outlet 12D at one set water level Y1). On the other hand, when the operation unit 31A is operated so as to execute the large washing, as shown in FIG. 3 (III-2), almost no washing water remains in the second tank 12 (the water level is the first setting). At the water level Y2), the first on-off valve 31 closes the outlet 12D.

  During this time, when the water level in the first tank 11 decreases from the full water level X1, the third on-off valve 33 is opened. As a result, the wash water flows into the second tank 12 from the second water supply path 22. Then, after the first on-off valve 31 closes the outlet 12D, the water level in the second tank 12 rises.

  And if the water level in the 2nd tank 12 rises to the 2nd setting water level Z, as shown in FIG.4 (IV), the 2nd on-off valve 32 will close and the 1st water supply path 21 will close. Thereby, the ejection of the washing water from the injection nozzle 20B is stopped, and the supply of the washing water to the toilet body 1 is terminated. At this time, the second set water level Z is set so that the water level in the first tank 11 does not become lower than the lower end opening of the third tank 13. For this reason, while the washing water is ejected from the injection nozzle 20B, the inside of the third tank 13 can always be maintained in the state filled with the washing water. Thereby, it is possible to reliably prevent the cleaning water ejected from the jet nozzle 20B of the jet pump device 20 from drawing air into the inflow port 20A. For this reason, generation | occurrence | production of the sound in which the jet pump apparatus 20 draws in air can be prevented reliably.

  When the operation portion 31A of the first on-off valve 31 is operated so as to execute the small washing, the first set water level Y1 with the higher water level is selected, and the first on-off valve 31 closes the outlet 12D. For this reason, it is possible to shorten the time until the water level in the second tank 12 rises to the second set water level Z as compared with the case where the operation part 31A of the first on-off valve 31 is operated so as to perform the large washing. it can. That is, the 1st water supply path 21 is closed early and the ejection of the washing water from the injection nozzle 20B is stopped early. For this reason, if the operation part 31A of the 1st on-off valve 31 is operated so that small washing | cleaning may be performed, the quantity of the washing water supplied to the toilet bowl body 1 can be decreased. Thus, since this toilet bowl washing | cleaning apparatus 10 can change the water quantity of the wash water supplied to the toilet bowl part 2 according to the use condition of a flush toilet bowl, toilet bowl washing | cleaning can be performed favorably. .

  Further, in the toilet bowl cleaning device 10, the second on-off valve 32 opens and closes due to a change in the water level in the second tank 12. The flow rate of the wash water supplied from the second water supply path 22 to the second tank 12 varies depending on the supply water pressure. That is, the flow rate of the cleaning water supplied to the second tank 12 is increased as compared with the case where the higher supply water pressure is lower. For this reason, the water level in the second tank 12 rises to the second set water level Z earlier than in the case where the higher feed water pressure is lower. Therefore, the 2nd on-off valve 32 closes early compared with the case where the one where supply water pressure is high is low. That is, compared with the case where the one where supply water pressure is high is low, the ejection of the washing water from the injection nozzle 20B stops early, and the supply of the washing water to the toilet body 1 is finished early.

  Moreover, the flow rate of the cleaning water that flows through the first water supply path 21 and is ejected from the injection nozzle 20B is higher than that when the supply water pressure is high. Further, the third water tank 13 (first tank 11) that is drawn into the inflow port 20A is stronger when the water flow of the washing water ejected from the injection nozzle 20B is stronger (the flow rate is higher) than when the water flow is weaker (the flow rate is lower). The flow rate of cleaning water in) increases. For this reason, compared with the case where the one where supply water pressure is high is low, the flow volume of the wash water supplied to the toilet bowl main body 1 increases, and the supply of the wash water to the toilet bowl main body 1 is terminated early. As described above, the toilet cleaning device 10 can reduce variations in the amount of cleaning water supplied to the toilet body 1 even when the supply water pressure fluctuates.

  Therefore, the toilet bowl cleaning apparatus 10 according to the first embodiment can supply a stable amount of water to the toilet bowl body 1 and perform toilet cleaning satisfactorily.

  The water level of the second tank 12 continues to rise due to the wash water flowing from the second water supply path 22. Then, as shown in FIG. 4 (IV), the wash water overflowing from the second tank 12 flows into the first tank 11 and the water level in the first tank 11 rises. When the water level in the first tank 11 rises to the full water level X1, the third on-off valve 33 is closed and the second water supply path 22 is closed. Thereby, the flush toilet bowl is stored in the first tank 11 and the second tank 12 in the state of the full water level X1, X2, and returns to the standby state before the toilet flushing is executed.

  As described above, the toilet bowl cleaning device 10 of the flush toilet of the first embodiment can perform toilet cleaning without a power source.

<Example 2>
As shown in FIG. 5, the toilet flushing device 110 of the flush toilet according to the second embodiment is different from the first embodiment in that the first opening / closing valve 131 sets only one first set water level at which the outlet 12D is closed. Is different. Other configurations are the same as those of the first embodiment, and the same configurations are denoted by the same reference numerals and detailed description thereof is omitted.

  In this toilet bowl cleaning device 110, when the first on-off valve 131 operates the operating portion 131A to open the outlet 12D, there is almost no cleaning water remaining in the second tank 12 (the water level is the first set water level Y2). ) To close the outlet 12D. For this reason, this flush toilet bowl can supply flush water with a substantially equal amount of water to the toilet bowl every time when toilet flushing is performed.

  Therefore, the toilet bowl cleaning device 110 according to the second embodiment can also supply a stable amount of water to the toilet bowl body 1 and perform toilet cleaning satisfactorily.

<Example 3>
The toilet flushing device 210 of the flush toilet of the third embodiment is different from the second embodiment in that it includes a fourth on-off valve 34 provided in the first water supply channel 21 as shown in FIG. Other configurations are the same as those of the second embodiment, and the same configurations are denoted by the same reference numerals and detailed description thereof is omitted.

  The fourth on-off valve 34 is a ball tap having a float 34 </ b> A that moves up and down in conjunction with a change in the water level in the first tank 11. The fourth open / close valve 34 is lowered to a water level W slightly higher than the lower end opening of the third tank 13 so that the water level in the first tank 11 does not lower than the lower end opening of the third tank 13 during the toilet cleaning. Then, the valve is set to close.

  That is, the fourth on-off valve 34 is closed immediately before the water level in the first tank 11 drops to the level at which air flows in from the inlet 20A of the jet pump device 20, and closes the first water supply path 21. Even if the flow rate of the washing water flowing into the second tank 12 is small and the closing of the second on-off valve 32 is delayed, the fourth on-off valve 34 is closed, whereby the injection nozzle of the jet pump device 20 is injected. It is possible to reliably prevent the washing water ejected from 20B from drawing air into the inflow port 20A. For this reason, generation | occurrence | production of the sound in which the jet pump apparatus 20 draws in air can be prevented reliably.

<Example 4>
As shown in FIG. 7, the toilet bowl cleaning device 310 of the flush toilet bowl according to the fourth embodiment is different from the second embodiment in that the third tank 13 is not provided. Other configurations are the same as those of the second embodiment, the same configurations are denoted by the same reference numerals, and detailed description thereof is omitted.

  This toilet flushing device 310 extends the upstream end of the toilet water supply channel 114 to the vicinity of the bottom of the first tank 11, and has an inlet 120A provided at the upstream end of the toilet water supply channel 114, and flush water toward the inlet 120A. The jet pump device 129 is configured by arranging the jet nozzle 120 </ b> B that jets in the vicinity of the bottom of the first tank 11. Thereby, the toilet bowl cleaning device 310 can reduce the number of parts.

  The toilet bowl cleaning device 310 sets the second set water level so that the water level in the first tank 11 does not become lower than the inflow port 120A. For this reason, while the washing water is ejected from the spray nozzle 122, the inflow port 120A is always in a position lower than the water level. Accordingly, it is possible to reliably prevent the cleaning water ejected from the jet nozzle 122 of the jet pump device 120 from drawing air into the inflow port 120A. For this reason, generation | occurrence | production of the sound in which the jet pump apparatus 120 draws in air can be prevented reliably.

The present invention is not limited to the first to fourth embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first to fourth embodiments, the second tank is disposed in the first tank. However, the second tank may not be disposed in the first tank, for example, in combination with the first tank.
(2) In the first to fourth embodiments, the second to fourth on-off valves are ball taps having a float. However, the electric power level sensor that detects the water levels of the first tank and the second tank is used to generate electricity. You may open and close a drive-type 2nd-4th on-off valve.
(3) The first on-off valve of the first to fourth embodiments may be an electrically driven on-off valve having an electric water level sensor that detects the water level of the second tank.
(4) In Examples 1-4, although wash water was supplied to the toilet bowl part, even if wash water is supplied directly to other parts of the toilet body such as a jet spout provided on the upstream side of the toilet drainage channel Good.
(5) You may provide the 4th on-off valve of Example 3 in the 1st water supply path of the toilet bowl washing | cleaning apparatus of Example 1. FIG.

DESCRIPTION OF SYMBOLS 1 ... Toilet body 10, 110, 210, 310 ... Toilet washing apparatus 11 ... 1st tank 12 ... 2nd tank 12D ... Outlet 14 ... Toilet water supply path 20 ... Jet pump apparatus 20A, 120A ... Inlet 20B, 120B ... Injection Nozzle 21 ... 1st water supply path 22 ... 2nd water supply path 31, 131 ... 1st on-off valve 32 ... 2nd on-off valve 33 ... 3rd on-off valve 34 ... 4th on-off valve X1 ... Full water level of 1st tank Y1, Y2 ... first set water level Z ... second set water level

Claims (3)

A toilet cleaning device for supplying cleaning water to the toilet body,
A first tank for storing wash water;
A toilet water supply channel communicating the first tank and the toilet body,
Arranged at a position lower than the full water level in the first tank in the standby state before performing toilet flushing, an inlet provided at the upstream end of the toilet water supply channel, and flush water is ejected toward the inlet A jet pump device having an injection nozzle that
A first water supply channel for supplying cleaning water to the spray nozzle;
Wash water is stored at a position higher than the full water level of the first tank, and an outlet for flowing the stored wash water into the first tank is provided at a lower end portion. A second tank flowing into one tank;
A first on-off valve that closes the outlet when the wash water stored in the second tank flows out from the outlet into the first tank and the water level in the second tank drops to a first set water level; ,
A first water supply path that opens and closes at a second set water level, the water level in the second tank being higher than the first set water level and higher than the full water level in the first tank; Two on-off valves,
A second water supply channel that branches the first water supply channel and supplies cleaning water into the second tank;
A toilet flushing apparatus, comprising: a third on-off valve provided in the second water supply channel and opened or closed when the water level in the first tank is the full water level.   The first on-off valve closes the outlet when the plurality of first set water levels are set and the water level in the second tank drops to the selected first set water level. The toilet bowl cleaning device described.   A fourth opening / closing mechanism that is provided in the first water supply channel and closes the first water supply channel by closing the water level in the first tank before the water level is lowered to a level at which air flows in from the inlet of the jet pump device. The toilet cleaning device according to claim 1 or 2, further comprising a valve.

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