JP5180295B2 - Western-style toilet with an overflow prevention auxiliary tank - Google Patents

Description

The present invention relates to a western style toilet having an overflow preventing water tank, and more specifically, a western style having an overflow preventing water tank for preventing the washing water from continuously overflowing when the one-piece western style toilet is clogged with filth. Concerning toilet bowl.

A Western-style toilet consists of a water tank and toilet body that is supplied with wash water through a ball tap and stores it. When the water lid is opened by the operation lever installed in the water tank, It consists of a structure that is discharged and discharged together with filth. Such a Western-style toilet is a two-piece with a water tank and a toilet body separated, and a one-piece with a normal water level lower than that of the body. ) Western style toilet bowls that can be distinguished from each other, and recently, due to the luxury of homes, water tank-integrated western style toilet bowls that are high-class one-piece Western style toilet bowls in terms of design have become widespread.

FIG. 1 is a plan view showing a one-piece western-style toilet according to the prior art, and FIG. 2 is a cross-sectional view of the one-piece western-style toilet according to the prior art before waiting for cleaning. FIG. 2 shows the ball tap in a different direction for easy understanding.

Referring to FIGS. 1 and 2, the toilet bowl main body 19 has a water tank 9 formed integrally with a cleaning bowl 18 which is a cleaning space, and the water tank 9 and the cleaning bowl 18 are connected by a side water channel 29.

In such a Western-style toilet, the normal water level WL of the water tank 9 is lower than that of the cleaning bowl 18, and in order to clean the wall surface of the cleaning bowl, water is supplied into the water tank 9 from the water supply pipe 7 and the water level of the water tank 9 Thus, the ball tap 17 is disposed that performs the function of opening and closing the water supply and switching the water supply to the rim side or the water tank side. The ball tap 17 is connected to the rim water channel 22 of the toilet body through the rim connecting pipe 21 on the rim side. A water lid 13 for opening and closing the side water channel 29 is disposed at the lower part of the water tank 9, and the water lid 13 is connected to the hand lever link 15 through the connecting string 14. The hand lever link 15 is connected to a handle 12 outside the water tank, and opens and closes the water lid 13 by a user's operation.

A rim discharge port 25 connected to the rim water channel 22 is formed on the upper side surface of the cleaning bowl 18, and a discharge port 30 for discharging filth is disposed on the lower side. The rim discharge port 25 discharges water supplied from the ball tap 17 to the wall surface of the cleaning bowl through the rim water channel 22. A jet injection port 27 that is opposed to the discharge port 30 and is connected to the side water channel 29 is disposed. The jet outlet 27 functions to cause the washing water stored in the water tank 9 to strongly push out the filth using the head of the normal water level WL, suck the water stored in the washing bowl 18 and discharge it outside the pottery. . Such a cleaning method for Western-style toilets is called a jet siphon type Western-style toilet.

If the wash water in the water tank is discharged into the side water channel 29 by a set amount from the normal water level WL to the bottom water level DL, the water lid 13 is closed and the side water channel 29 is blocked. At this time, the ball tap 17 converts the water supply from the rim channel side to the water supply pipe 31 on the water tank side through the conversion unit 16 and supplies the water to the water tank 9 to fill the cleaning water. When the normal water level WL that has been set with the cleaning water is filled, the ball tap 17 cuts off the water supply by the action of the water level sensing float 33 connected to the ball tap 17 and waits for the next operation. The structure of the above-described Western-style toilet is disclosed in Patent Document 1, and the conversion ball tap is disclosed in Patent Document 2.

However, such a one-piece Western-style toilet has a problem in that the cleaning water continuously overflows the cleaning bowl 18 when filth is clogged in front of the discharge trap and the jet outlet 27.

2 to 9 are cross-sectional views illustrating an overflow phenomenon of a one-piece western-style toilet according to an embodiment of the prior art.

Referring to FIG. 2, it is a cross-sectional view before the user performs a cleaning operation in a state where the waste is in the cleaning bowl 18. The water level of the water tank 9 is maintained at the normal water level WL in a state where the water tank is filled with cleaning water. The reference sign “DL” is the bottom water level where the wash water in the water tank is completely discharged, the water tap is switched to the rim and water tank side by the ball tap 17, and the water lid 13 is closed. The water level BWL of the cleaning bowl 18 maintains a steady state.

Referring to FIG. 3, when the user operates the handle 12 to clean the filth, the water lid 13 connected to the handle 12 rotates upward to open the side water channel 29 of the water tank 9. The handle 12 returns to the original state, but the water lid 13 maintains its open state by its own buoyancy, and the wash water stored in the water tank 9 is discharged to the jet outlet 27 of the wash bowl 18 through the side water channel 29 and becomes filth. And the water inside the washing bowl moves in the direction of the pottery outlet 30. When the water level of the water tank 9 falls to the water supply opening water level hr of the ball tap, the ball tap 17 starts to supply water and supplies water to the rim side. Water is supplied through the rim connecting pipe 21 and the rim water channel 22, and the water is injected through the discharge port 25 at the bottom of the rim to clean the wall surface of the ceramic wash bowl 18. The washing water is transferred to the discharge trap 42 together with the filth by the siphon action, and the water level BWL of the washing bowl is lowered. At this time, the case where the discharged filth gets inside the discharge trap 42 and becomes clogged can occur.

Referring to FIG. 4, the water supply supplied to the rim side by the ball tap 17 in a state where the discharge trap 42 is clogged is supplied following the cleaning bowl 18, and only a small amount of discharged water is discharged from the discharge trap 42 due to clogging of dirt. Therefore, the water level of the cleaning bowl 18 continues to rise. When the water level BWL of the cleaning bowl 18 rises above the water level TWL of the water tank 9, the water in the cleaning bowl 18 flows back to the water tank 9 side through the jet outlet 27 via the side water channel 29. At this time, a part of the filth in a free state that is not involved in the clogging of the discharge trap 42 moves to the jet injection port 27 side along the reverse flow, and the phenomenon of the jet injection port 27 occurs. The reverse flow rate from the washing bowl to the water tank is reduced by the dirt on the jet outlet 27. The symbol “h” indicates the difference between the water level BWL of the cleaning bowl and the water level TWL of the water tank.

Referring to FIG. 5, the water level BWL of the cleaning bowl 18 continues to rise, while the water level TWL of the water tank 9 gradually rises. Therefore, a phenomenon occurs that the water level BWL of the cleaning bowl overflows beyond the uppermost end of the pottery 19. On the other hand, water supply to the rim side by the ball tap 17 is continuously discharged through the rim water channel 22 and the rim discharge port 25, and the external overflow phenomenon continues.

Referring to FIG. 6, when the water level TWL of the water tank 9 gradually rises and reaches the normal water level WL, the ball tap 17 interrupts the water supply. The overflow phenomenon is also interrupted by the interruption of the water supply of the ball tap 17, and the water level BWL of the cleaning bowl is gradually lowered by the continuous small amount of discharged water through the discharge trap 42.

Referring to FIG. 7, when the water level BWL of the cleaning bowl is continuously lowered by a small amount of discharged water and becomes lower than the water level of the water tank, the contaminated cleaning water in the water tank gradually becomes the side water channel 29 and the jet nozzle 27. To the washing bowl 18. The amount of washing water flowing out from the water tank is small due to the dirt on the jet injection port 27, and the dirt cannot be pushed out. As washing water flows out of the water tank, the water level TWL of the water tank gradually decreases.

Referring to FIG. 8, when the water level of the water tank 9 falls to the water supply opening water level hr of the ball tap, the ball tap 17 discloses the water supply and supplies the water to the rim side. Water is supplied through the rim water supply pipe 21 and the rim water channel 22, and the water is injected through the discharge port 25 at the bottom of the rim to supply water to the cleaning bowl 18. The water level BWL of the cleaning bowl rises again.

Referring to FIG. 9, the water level BWL of the cleaning bowl continues to rise, and the overflow phenomenon occurs again over the uppermost end of the pottery 19. Due to the difference h between the water level in the washing bowl and the water level in the water tank, the water level TWL in the water tank 9 gradually rises due to a small amount of backflow through the side water channel 29, reaches the normal water level WL, and the ball tap 17 interrupts water supply. The overflow phenomenon continues until That is, when the water level of the water tank reaches the normal water level, the ball tap 17 enters the state of FIG. Thereafter, an overflow phenomenon is periodically generated while repeating the states of FIGS. 6 to 9.

Such an overflow phenomenon occurs when the water level of the water tank does not fall to the bottom water level DL and the ball tap 17 cannot supply water to the water tank side and repeatedly supplies water to the rim side. Under the periodic overflow phenomenon, the water lid 13 always maintains its open state by its own buoyancy. The water lid 13 can also be closed with the water level of the water tank 9 lowered to the bottom water level DL, and the water level of the water tank does not fall to the bottom water level DL under a periodic overflow phenomenon.

In order to improve the rim cleaning of the above-mentioned one-piece western-style toilet, the applicant of the present invention disclosed in Patent Document 3 and Patent Document 4 that an injection pump is interposed between the ball tap and the rim water channel of the water tank-integrated Western-style toilet. Disclosed is a Western-style toilet including an injection pump that supplies mixed wash water, which is a combination of feed water supplied from a pipe and wash water in a water tank, to a rim channel. Patent Document 5 also discloses a Western-style toilet using an injection pump.

FIG. 10 is a cross-sectional view showing a one-piece western-style toilet using an injection pump according to an embodiment of the prior art.

Referring to FIG. 10, an injection pump 50 is interposed between the ball tap 60 and the rim water channel 22. Here, the ball tap 60 functions to simply open and close the water supply depending on the water level of the water tank, and the function of switching between the water tank side and the rim side is provided in the injection pump.

FIG. 11 is a cross-sectional view showing a one-piece Western-style toilet using an injection pump according to another embodiment of the prior art.

Referring to FIG. 11, an injection pump 51 is interposed between the ball tap 17 and the rim water channel 22. Here, the ball tap 17 is a conversion ball tap having not only an action of opening and closing the water supply depending on the water level of the water tank but also a conversion part 16 for the water tank side and the rim side.

Even the Western-style toilet using the above-described injection pump has a problem that a periodic overflow phenomenon occurs. This is because the supply of water to the water tank side and the rim side can be changed by lowering the water level of the water tank to the bottom water level DL even in a Western style toilet using an injection pump.

Korean Utility Model Application No. 1996-2280 Korean Utility Model Application No. 1998-2801 Korean Registered Patent No. 10-48510 Korean Registered Patent No. 10-555834 Korean Utility Model Application No. 2004-36347

In order to solve the above-mentioned problems of the prior art, a Western-style toilet having an overflow prevention water tank that can prevent washing water from overflowing outside the washing bowl even when filth is clogged in a one-piece Western-style toilet The purpose is to do.

In order to achieve the above-described object, the Western-style toilet of the present invention includes a water tank that holds a certain amount of washing water through a ball tap that opens and closes water supply according to the water level inside, a rim water channel that is supplied with water from the ball tap, and a rim discharge. An outlet is arranged on the inner peripheral surface of the rim, and is arranged between a washing bowl connected to the water tank by a side water channel, a water lid for opening and closing a side water channel outlet at the bottom of the water tank, and a ball tap and a rim water channel. An injection pump that supplies mixed cleaning water, which is a combination of water supply and stored cleaning water, to the rim water channel, and an injection pump installed inside the water tank, and only the flow of cleaning water from the inside to the outside in one direction And a check valve that opens the water tank, and includes an overflow prevention auxiliary water tank in which the height of the water tank is higher than the normal water level of the water tank.

In the present invention, a ball guide tube into which a ball is inserted is extended upward by a predetermined length between the injection nozzle of the injection pump and the throat, and the water supplied from the ball tap according to the water level is supplied to the auxiliary water tank side and the rim side. Can be converted to

In the present invention, the ball tap is provided with a conversion part for switching the water supply to the water tank side and the rim side according to the water level, and the supply pipe and the water level detection float on the water tank side of the ball tap are arranged in the auxiliary water tank. Can do.

In the present invention, it is possible to further include a water pressure adjusting device that branches from a connection hose that connects between the ball tap and the injection nozzle of the injection pump and supplies a fixed amount of water.

The western-style toilet of the present invention includes an overflow prevention auxiliary water tank, and can prevent the washing water from overflowing outside the washing bowl even when the one-piece western-style toilet is clogged with filth.

It is a top view which shows the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing explaining the overflow phenomenon of the one-piece western style toilet bowl which concerns on one Embodiment of a prior art. It is sectional drawing which shows the one-piece western-style toilet using the injection pump which concerns on one Embodiment of a prior art. It is sectional drawing which shows the one-piece western style toilet bowl using the injection pump which concerns on other embodiment of a prior art. It is a perspective view which shows the overflow prevention auxiliary water tank which concerns on one Embodiment of this invention. It is the top view which installed the overflow prevention auxiliary | assistance water tank which concerns on 1st Embodiment of this invention inside the water tank. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the overflow prevention phenomenon of the one-piece western style toilet bowl which concerns on 1st Embodiment of this invention. It is the top view which installed the overflow prevention water tank which concerns on 2nd Embodiment of this invention in the inside of a water tank. It is sectional drawing which installed the overflow prevention water tank which concerns on 2nd Embodiment of this invention in the inside of a water tank.

The above objects, features and advantages will become more apparent through the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. According to the present invention, a separate auxiliary water tank is installed inside the water tank of a one-piece Western-style toilet using an injection pump, and the water tank descends to the bottom water level even when the one-piece Western-style toilet is clogged with filth. This can be achieved only when an injection pump is used, and cannot be achieved with a one-piece Western-style toilet that does not use an injection pump as shown in FIGS.

(First embodiment)

FIG. 12 is a perspective view showing an overflow prevention auxiliary water tank 170 according to an embodiment of the present invention.

Referring to FIG. 12, the overflow prevention auxiliary water tank 170 is an auxiliary water tank installed in the water tank of a Western-style toilet, and is equipped with an injection pump inside, and the opening 171 and the opening 171 communicate with the outside. A plate-type check valve 172 that opens only the flow is provided. The overflow prevention auxiliary water tank 170 is higher than the normal water level of the water tank and can only be opened in one direction from the inside of the auxiliary water tank to the water tank side. If the water level of the auxiliary water tank is higher than the water level of the water tank, it is opened. The water inside the auxiliary water tank is sent to the water tank side, and if the water level on the water tank side is high, the function of blocking the inflow to the auxiliary water tank is achieved. During normal Western style toilet operation, the auxiliary water tank is first filled with water, and the wash water is stored in the water tank via the opening 171 and the plate type check valve 172. Unexplained reference numerals '173' and '174' are openings for inserting the water supply inlet pipe to the injection pump and the outlet pipe to the rim side, and the reference numeral '175' is for installing the auxiliary water tank 170 in the water tank. It is a fixing bolt.

Hereinafter, the operation principle of overflow prevention using the overflow prevention auxiliary water tank will be described.

FIG.13 and FIG.14 is the top view and sectional drawing which installed the overflow prevention auxiliary | assistance water tank which concerns on 1st Embodiment of this invention inside the water tank. The cross-sectional view in FIG. 14 shows a schematic diagram in which each component is developed for the convenience of understanding.

Referring to FIGS. 13 and 14, the toilet bowl main body 119 has a water tank 109 integrally formed with a cleaning bowl 118 which is a cleaning space, and the water tank 109 and the cleaning bowl 118 are connected by a side water channel 129. In the water tank 109, water is supplied from the water supply pipe 107, and a simple ball tap 160 that opens and closes the water supply depending on the water level of the water tank is disposed. An injection pump 150 is interposed between the ball tap 160 and the rim water channel 122. The function of switching between the water tank side and the rim side is provided in the injection pump 150. The outlet of the injection pump 150 is connected to the rim water channel 122. Here, an overflow prevention auxiliary water tank 170 is disposed inside the water tank 109 with the injection pump 150 provided therein. A water pressure adjusting device 159 that branches from a connection hose 161 that connects between the ball tap 160 and the spray nozzle 152 of the spray pump and that supplies a fixed amount of water can be disposed. Since the detailed description with respect to the water pressure adjusting device 159 is disclosed in Patent Document 4, the description thereof is omitted.

A water lid 113 that opens and closes the side water channel 129 is disposed below the water tank 109, and the water lid 113 is connected to the hand lever link 115 through a connecting string 114. The hand lever link 115 is connected to a handle 112 outside the water tank, and opens and closes the water lid 113 by a user operation.

A discharge port 125 connected to the rim water channel 122 is formed on the upper side surface of the cleaning bowl 118, and a discharge port 130 for discharging filth is disposed at the lower part. Through the rim water channel 122, the discharge port 125 discharges water supplied to the injection pump 150 to the wall surface of the cleaning bowl. A jet injection port 127 that is opposed to the discharge port 130 and is connected to the side water channel 129 is disposed. The jet outlet 127 strongly pushes out dirt, sucks the water stored in the washing bowl 118, and discharges it out of the pottery 119.

14 to 20 are cross-sectional views for explaining the overflow prevention phenomenon of the one-piece western-style toilet according to the first embodiment of the present invention.

Referring to FIG. 14, it is a cross-sectional view before the user performs a cleaning operation with the dirt in the cleaning bowl 118. The water level TWL of the water tank 109 is maintained at the normal water level WL in which the water tank is filled with the washing water, and the ball tap 160 is in the water stop state. An injection pump 150 is provided inside the auxiliary water tank 170, and a water supply conversion ball 151 of the injection pump is restrained by a ball guide tube 153 and floats on the surface of a normal water level. The check valve 172 of the auxiliary water tank is kept closed by its own weight. The reference numeral “DL” is a water level at which the wash water in the water tank is completely discharged, the water supply is switched to the water tank, and the water lid is closed. The water level BWL of the cleaning bowl 118 maintains a steady state.

Referring to FIG. 15, when the user operates the handle 112 in order to clean the filth, the water lid 113 connected to the handle 112 rotates upward to open the side water channel 129. The handle 112 returns to its original state, but the water lid 113 maintains its open state by its own buoyancy, and the wash water stored in the water tank is discharged to the jet outlet 127 of the wash bowl 118 through the side water channel 129, and the The water inside the washing bowl moves toward the pottery outlet 130. When the water level of the water tank 109 falls to the water supply opening water level hr of the ball tap 160, the ball tap 160 starts to supply water. At this time, the water level IWL inside the auxiliary water tank is relatively higher than the water level TWL of the water tank (only ht), the check valve 172 is opened, the water in the auxiliary water tank is discharged toward the water tank, and the water levels on both sides immediately Be the same. Water supplied from the ball tap is jetted from the nozzle 152 of the jet pump 150 inside the auxiliary water channel 70 via the connecting hose 161. The injected water supply sucks water around the auxiliary water tank, and supplies rim washing water to the rim water channel 122 of the earthenware via the throat 155 and the expansion pipe 156 of the injection pump. The rim cleaning water is supplied through the rim water channel 122, and the cleaning water is jetted through the discharge port 125 at the bottom of the rim, thereby cleaning the wall surface of the ceramic bowl 118. The washing water moves to the discharge trap 142 together with the filth due to the siphon action, and the water level BWL of the washing bowl becomes low. At this time, the case where the discharged filth gets inside the discharge trap 142 and becomes clogged can occur.

Referring to FIG. 16, in the state where the discharge trap 142 is clogged, water is sucked into the auxiliary water tank 170 by the injection pump 150 and supplied to the cleaning bowl 118. The discharge trap 142 is clogged with dirt and a small amount of discharged water. Since only the water is discharged, the water level of the cleaning bowl 118 rises continuously. When the water level BWL of the cleaning bowl 118 rises above the water level TWL of the water tank 109 (only h), the water in the cleaning bowl 118 flows back to the water tank 109 side through the jet nozzle 127 via the side water channel 129. At this time, a part of the filth in a free state that is not involved in the clogging of the discharge trap 142 moves to the jet injection port 127 side along the reverse flow, and a phenomenon of the jet injection port 127 occurs. The reverse flow rate from the washing bowl to the water tank side is reduced by the filth on the jet outlet 127. At this time, the water level TWL of the water tank gradually increases.

On the other hand, the internal water level IWL of the auxiliary water tank 170 is sucked by the injection pump 150, and the water level is continuously lowered by the amount of water discharged to the rim side. At this time, the internal water level IWL of the auxiliary water tank 170 is lower than the water level TWL of the water tank (only ht), and the check valve 172 of the auxiliary water tank is closed. That is, the internal water level IWL of the auxiliary water tank only flows out due to the suction action of the injection pump, does not flow into the auxiliary water tank 170, and then falls.

Referring to FIG. 17, the water level in the cleaning bowl 118 continues to rise, while the water level IWL in the auxiliary water tank 170 continuously drops. When the water level IWL of the auxiliary water tank reaches the bottom water level DL, the ball 151 is sucked into the front end of the nozzle, interrupts the water supply injected from the nozzle, interrupts the pumping action of the injection pump, and supplies the water inside the auxiliary water tank. The washing water is stored in the auxiliary water tank 170. Accordingly, the water supply to the rim side is interrupted, and the water level BWL of the cleaning bowl 118 stops rising and does not overflow to the outside of the pottery. Here, the water level BWL of the cleaning bowl is higher than the water level TWL on the water tank side (only h), the backflow to the water tank side continues, and the water level BWL of the water tank gradually rises.

Referring to FIG. 18, the water level BWL of the cleaning bowl 118 gradually decreases due to a small amount of backflow toward the water tank and a small amount of discharged water toward the discharge trap 142, and the water level TWL at the water tank gradually decreases due to the backflow. To rise. When the water level TWL on the water tank side reaches the normal water level WL, the ball tap 160 shuts off the water supply. The water level IWL of the internal water tank 170 is in a state where the constant water level is raised by the water supplied from the ball tap, the water level rise is stopped by shutting off the water supply of the ball tap, the ball 151 loses its binding force, and the ball guide tube 153 is lost due to buoyancy Along the surface of the water.

Referring to FIG. 19, the water level BWL of the cleaning bowl 118 is continuously lowered by the discharged water that escapes a small amount to the discharge trap 142 side, and becomes lower than the water tank water level TWL. Accordingly, since the water lid 113 is opened continuously, the water tank wash water is gradually discharged through the side water channel 129, and the water tank water level TWL gradually decreases.

Referring to FIG. 20, when the water level TWL of the water tank 109 falls to the water supply opening water level hr of the ball tap 160, the ball tap 160 discloses the water supply to the injection pump 150. Water supplied from the ball tap is sprayed from the nozzle 152 of the spray pump 150 inside the auxiliary water tank 170 via the connecting hose 161. The injected water sucks the water in the vicinity of the auxiliary water tank and supplies the rim washing water to the rim water channel 122 of the pottery through the throat 155 and the expansion pipe 156 of the injection pump. The rim cleaning water is supplied through the rim water channel 122, and the cleaning water is jetted through the discharge port 125 at the bottom of the rim, thereby raising the water level BWL of the ceramic cleaning bowl 118. On the other hand, the water level IWL of the internal water tank 170 is continuously lowered by the suction action of the injection pump.

Subsequent operations are the same as those in FIG.

Referring to FIG. 17 again, the water level in the cleaning bowl 118 continues to rise, while the water level IWL in the auxiliary water tank 170 continuously falls. When the water level IWL of the auxiliary water tank reaches the bottom water level DL, the ball 151 is sucked into the front end of the nozzle, interrupts the water supply injected from the nozzle, interrupts the pumping action of the injection pump, and supplies the water inside the auxiliary water tank. The washing water is stored in the auxiliary water tank 170. Accordingly, the water supply to the rim side is interrupted, and the water level BWL of the cleaning bowl 118 stops rising and does not overflow to the outside of the pottery. Here, the water level BWL of the cleaning bowl is higher than the water level TWL on the water tank side (only h), the backflow to the water tank side continues, and the water level BWL of the water tank gradually rises.

  Thereafter, the state of FIGS. 17 to 20 is continuously circulated, and the overflow phenomenon of the washing water to the outside of the pottery does not occur.

The overflow phenomenon can be prevented by switching the water supply to the rim side to the auxiliary water tank side because the water level in the auxiliary water tank is lowered to the bottom water level DL by the suction action of the injection pump.

(Second Embodiment)

In the second embodiment, an injection pump is interposed between the ball tap and the rim water channel. Here, the ball tap is a conversion ball tap that has not only an action of opening and closing the water supply depending on the water tank water level but also a water supply conversion function to the water tank side and the rim side. On the other hand, the injection pump does not have a water supply conversion function.

FIG.21 and FIG.22 is the top view and sectional drawing which installed the overflow prevention water tank which concerns on 2nd Embodiment of this invention inside the water tank. The cross-sectional view in FIG. 22 shows a schematic diagram in which each component is developed for the convenience of understanding.

Referring to FIGS. 21 and 22, water is supplied from the water supply pipe 107 into the water tank 109, and the conversion ball tap 180 having a function of switching between the water tank side and the rim side is opened and closed according to the water level of the water tank. Has been placed. An injection pump 195 is interposed between the ball tap 180 and the rim water channel 122. The outlet of the injection pump 195 is connected by a rim water channel 122.

Here, an overflow prevention auxiliary water tank 190 is mounted inside the water tank 109 with the injection pump 195 provided inside. Overflow prevention auxiliary water tank 190 is an auxiliary water tank installed in the water tank of a Western-style toilet, with an injection pump installed inside, a plate-type check valve that opens to communicate with the outside and opens only in one direction from the inside to the outside 192. The height of the overflow prevention auxiliary water tank 190 is higher than the normal water level of the water tank, and can only be opened in one direction from the inside of the auxiliary water tank to the water tank side. If the water level of the auxiliary water tank is higher than the water tank side, the check valve 192 is opened, the water inside the auxiliary water tank is sent to the water tank side, and if the water level on the water tank side is higher than the water level of the auxiliary water tank, it flows into the auxiliary water tank Fulfills the function of blocking. Further, the water level sensing float 184 of the ball tap 180 and the water tank side water supply pipe 183 are located inside the auxiliary water tank 190.

The operation principle of overflow prevention using the overflow prevention water tank according to the second embodiment is that the water level in the auxiliary water tank is lowered to the bottom water level by the suction action of the injection pump as in the first embodiment. This is achieved by switching the water supply to the rim side to the water tank side water supply pipe 183 located inside the auxiliary water tank when the water level drops to the bottom water level. Since such an operation is substantially the same as that of the first embodiment, detailed description thereof is omitted. The difference from the first embodiment is that the conversion ball tap 180 has a function of converting the water supply to the rim side and the water tank side, and the water supply from the conversion part 181 of the conversion ball tap 180 to the rim side supply pipe 182 and the water tank side. The pipe 183 is branched to change the water supply to the rim side or the water tank side depending on the water level.

In addition, in the overflow prevention auxiliary water tank 190, not only the injection pump 195 but also a water level sensing float 184 capable of detecting the water level of the conversion ball tap and the water tank side water supply pipe 183 are located in the overflow prevention auxiliary water tank. There is a difference.

The present invention described above is not limited by the above-described drawings and detailed description, but various modifications by those skilled in the relevant technical field can be made without departing from the spirit and scope of the present invention described in the claims. Needless to say, modifications are also included in the scope of the present invention.

7, 107 Water supply pipe 9, 109 Water tank 18, 118 Washing bowl 27, 127 Jet injection port 29, 129 Side channel 42, 142 Discharge trap 50, 51, 150, 195 Injection pump 170, 190 Overflow prevention auxiliary water tank 171 Opening 172, 192 Plate type check valve

Claims (3)

A water tank that holds a certain amount of wash water through a ball tap that opens and closes the water supply depending on the internal water level;
A rim water channel to which water is supplied from the ball tap and a rim discharge port are arranged on the inner peripheral surface of the rim, and the water tank is connected to the water tank by a side water channel,
A water lid for opening and closing a side water channel outlet at the bottom of the water tank;
An injection pump that is arranged between the ball tap and the rim water channel and supplies mixed cleaning water, which is a combination of water supply and stored cleaning water, to the rim water channel;
An auxiliary water tank is provided with a check valve that is equipped with an injection pump inside the water tank and opens only one-way wash water flow from the inside to the outside, and the height of the wall surface is higher than the normal water level of the water tank. Western-style toilet bowl characterized by including. A ball guide tube into which a ball is inserted is extended upward by a predetermined length between the injection nozzle and the throat of the injection pump, and the water supplied from the ball tap is changed to the auxiliary water tank side and the rim side depending on the water level. The Western-style toilet of Claim 1 characterized by the above-mentioned. The ball tap is provided with a switching portion for switching the water supply to the water tank side and the rim side according to the water level, and the water tank side supply pipe and the water level detecting float of the ball tap are disposed in the auxiliary water tank. The western-style toilet bowl according to claim 1, wherein

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