JP4529178B2 - Siphon Zet flush toilet. - Google Patents

Description

  The present invention relates to a siphon-jet flush toilet that efficiently generates a siphon action in a short time and reduces noise generated when cleaning water is supplied to a zet hole.

  Conventionally, there is one disclosed in Japanese Utility Model Publication No. Hei 6-27977 as a siphon set flush toilet. The siphon-zette flush toilet described in the above publication has an introduction port 3 facing the water supply port of the toilet 1 at one end, and branches toward the inflow ports 13 and 13 of the right and left water conduits 14 communicating with the zet hole 18. The pipes 4 and 5 are provided, and the distribution pipes 2 are arranged such that the discharge ports 4a and 5a at the ends of the pipes 4 and 5 face the upper sides of the inlets 13 and 13, respectively. And it is supposed that it is necessary to provide an appropriate gap between the discharge ports 4a and 5a at the ends of the conduits 4 and 5 and the inlets 13 and 13 of the water conduits 14 and 14, respectively. When the flush water is supplied to the toilet 1 from the water supply port 1, the flush water does not flow into the rim water passage 15, but is first led preferentially into the water conduit 14, and the water conduit 14 is in a full state. After that, the washing water overflowing from the inlet 13 flows into the rim water passage 15.

Japanese Utility Model Publication No. 6-27977 (see FIG. 1 and paragraph numbers 0006 and 0007)

  However, in the conventional siphon jet toilet, the end of the distribution pipe is located above the inlet of the water conduit to the jet hole at a distance from the inlet, so the water storage surface in the water conduit and the end of the distribution pipe The gap between the parts increases. If the air gap is large, mixing of cleaning water and air discharged from the jet holes cannot be avoided, the generation of siphon action is delayed, and noise during cleaning is caused by the burst of compressed air. .

  Further, at the end of washing, it is difficult to maintain the full condition of the water conduit to the zet hole, the air mixing rate in the zet water flow increases, it becomes difficult to maintain the full condition in the trap, and the siphon runs out quickly.

For example, when cleaning water is supplied to the conventional siphon-zette-type toilet using a water supply device using a flash valve, the instantaneous flow rate of water supply is lower than when supplying water from a cleaning water tank. For this reason, the water discharged from the jet holes is weak, and the cleaning performance cannot be ensured. Therefore, the area of the jet hole is reduced to increase the flow velocity discharged from the jet hole, and the siphon action is caused by a strong water force to ensure the cleaning performance.
When supplying cleaning water with the water supply apparatus as described above, if the gap is large, it is difficult to secure the water flow of the cleaning water, which may result in poor cleaning. Further, since the air discharged from the jet holes is large and the compression rate is large, the bursting sound of the air becomes large when the atmosphere is opened, and the noise during cleaning becomes large.

  Therefore, an object of the present invention is to provide a siphon-jet flush toilet that reduces noise generated when water is discharged from a jet hole and efficiently generates siphon action in a short time.

  In order to solve the above-mentioned problem, the present invention as set forth in claim 1 includes a water supply port provided at the rear or rear upper surface of a toilet, a jet conduit connected to a jet hole provided at the bottom of the toilet bowl, and a toilet A siphon comprising: a rim water conduit that communicates with a rim water discharge hole provided at an upper portion of the bowl portion; and a water supply passage that communicates with the water supply port and supplies cleaning water to the zet water conduit and the rim water conduit. In the Zet flush toilet, a water supply pipe is disposed in a space from the water supply passage to the upstream side of the Zet water conduit, and one end of the water supply pipe is connected to the water supply port in a watertight manner, and the other end. The opening is facing the stored water in the vicinity of the water seal height position of the stored water in the jet conduit.

In the present invention configured as described above, the opening of the tip of the water supply pipe is provided in the vicinity of the stored water, thereby reducing the space of the water passage for the wash water from the water supply port to the jet hole, so that the air mixed during cleaning can be reduced. The amount can be reduced. Further, the shape of the water supply pipe can be simplified, and the resistance of the water passage can be reduced.
In addition, the wash water supplied from the water supply port can easily push out the air in the water supply pipe, and the discharged air can be quickly discharged from the rim spout hole to the outside of the toilet through the connecting part and the rim conduit. Therefore, the mixing rate of air in the cleaning water discharged from the jet holes is reduced, and noise during cleaning can be reduced. Moreover, the trap can be filled with water early, and siphon action can be efficiently generated. As a result, the waste discharge performance can be improved and the washing water can be saved.
In addition, since the flush water is supplied from the connecting part to the rim water channel due to the rise in the level of the sealed water after the Zet water channel is full, a strong water discharge at the start of cleaning is directly discharged from the rim water discharge hole. Never happen. For this reason, it is possible to suppress the momentum in which the air in the rim conduit is pushed out, and to suppress water splashing from the rim water discharge hole.

  The present invention according to claim 2 is characterized in that the water supply pipe is provided with an opening at a height position close to a height position of a communication portion between the rim conduit and the water supply passage. To do.

  In the present invention configured as above, most of the air in the water supply pipe is discharged from the opening while the wash water is being supplied into the water supply pipe from the water supply port, and passes through the rim conduit from the communication part. It is discharged outside the toilet from the rim spout. As a result, the amount of air mixed into the wash water is drastically reduced, and noise due to air mixing is reduced.

  According to a third aspect of the present invention, there is provided a water supply port provided at the rear or rear upper surface of the toilet bowl, a jet conduit that communicates with a jet hole provided at the bottom of the toilet bowl part, and an upper part of the toilet bowl part. In the siphon-zette flush toilet comprising: a rim waterway that communicates with the rim water spouting hole; and a water supply passage that communicates with the water supply port and supplies cleaning water to the Zet waterway and the rim waterway. A water supply pipe is disposed in a space extending from the water outlet to the upstream side of the jet conduit, one end of the water supply pipe is connected to the water supply port in a watertight manner, and the opening of the other end is located at a height position. The water supply pipe is submerged in the stored water below the water seal height position in the water conduit, and the water supply pipe has an opening at a height position close to the height position of the connecting portion between the rim water conduit and the water supply passage. Is provided.

  In the present invention configured as described above, since the opening at the tip of the water supply pipe is submerged in the stored water, cleaning water can be supplied to the jet holes more efficiently. In addition, since most of the air in the water supply pipe is discharged from an opening disposed in the middle of the water supply pipe, the air discharged from the jet hole is reduced, and noise due to air mixing is reduced.

  The present invention according to claim 4 is characterized in that the water supply pipe has flexibility. The water supply pipe is preferably composed of a bellows pipe that is flexible and holds the shape after bending deformation, a soft resin, or the like.

  In the present invention configured as described above, it is easy to arrange the water supply pipe from the water supply port to the jet conduit, and the optimum arrangement can be easily made even if the shape of the water supply path differs depending on the toilet.

  According to the siphon jet flush toilet of the present invention, noise generated when water is discharged from the jet hole can be reduced, and the siphon action can be efficiently generated in a short time.

  Hereinafter, an embodiment of a siphon-jet flush toilet according to the present invention will be described with reference to FIGS.

(First embodiment)
FIG. 1 is a longitudinal sectional view of a siphon-jet flush toilet according to the first embodiment of the present invention, and FIG. 2 is a plan view of the siphon-jet flush toilet shown in FIG.
Siphon Zet flush toilet, Zet hole 7 provided at the bottom of the bowl facing the inlet of the trap 8, rim water discharge holes 6f and 6g provided at the top of the bowl, and water supply passage 4 provided at the upper rear The rim water channel 6b, the rim water channel 6e, 6d, and the water supply channel 4 that form the water channel to the Zet water channel 4b, the rim water discharge holes 6f, 6g connecting the water channel 4 and the jet hole 7, respectively. Are provided with rim communication portions 6b and 6c.

  Then, the water supply pipe 3 shown in FIG. 3 is arranged in the water supply passage 4 and in the jet conduit 4 b connected to the water supply passage 4, and the water supply port 2 has a sealing property so that washing water does not leak from the water supply passage 4. The flash valve 1 is attached. Then, one end of the water supply pipe 3 is connected to the flush valve 1, and the opening end 3 a of the other end of the water supply pipe 3 faces the water storage surface 5 at a position slightly above the position of the water storage surface 5.

Next, the cleaning operation will be described.
When the flush valve 1 is operated, the wash water is discharged from the open end 3a while pushing out the air in the water supply pipe 3, flows into the jet conduit 4b, and is discharged into the toilet from the jet hole 7. At that time, the pushed-out air collides with the water reservoir surface 5 and escapes from the space between the open end 3a and the water reservoir surface 5 to the space of the jet conduit 4b. The washing water discharged from the opening end 3a fills the jet conduit 4b and flows into the rim conduits 6e and 6d from the rim connecting portion inlets 6b and 6c located above while pushing up the air in the jet conduit 4b. Then, air and washing water are discharged to the upper part of the bowl portion from the rim water discharge ports 6f and 6g. The wash water discharged from the rim spouts 6f and 6g falls down while circulating around the upper part of the bowl part to wash the bowl part.

Since most of the air in the jet conduit 4b is discharged from the rim spouts 6f and 6g, the mixing rate of the air into the cleaning water discharged from the jet holes 7 is low, and the bursting sound of the air generated when discharged Becomes smaller and the toilet cleaning sound is reduced.
Moreover, since the washing water discharged from the jet hole 7 has a low air mixing rate, it becomes easy to form a full water state when it flows into the trap 8 and can cause siphon action early. This makes it possible to improve the waste discharge performance and save water in the washing water.

  Further, since flush water is not supplied directly from the flush valve 1 to the rim water conduits 6d and 6e, and the jet water conduit 4b is filled with water, the water is discharged from the rim water outlets 6f and 6g. The flow rate of the washing water is slowed down, the momentum of the air pushed out with it is suppressed, and the cause of water splash when discharging from the rim water discharge ports 6f, 6g can be suppressed.

(Second embodiment)
FIG. 4 is a longitudinal sectional view of a siphon-jet flush toilet according to a second embodiment of the present invention, and FIG. 5 is a plan view of the siphon-jet flush toilet shown in FIG.
The siphon set flush toilet of the second embodiment is an example in which a water supply pipe 9 having an opening 3b in the middle thereof is used as shown in FIG. 6 instead of the water supply pipe 3 described in the first embodiment. is there. Since the configuration other than the water supply pipe 9 is the same as that of the first embodiment, the description thereof is omitted.

The water supply pipe 9 is provided with an opening 3b communicating with the water supply passage 4 at substantially the same height as the rim connecting portions 6b and 6c.
In the present embodiment, when the cleaning operation is started, the air in the water supply pipe 9 can be efficiently discharged from the opening end 3a and the opening 3b. As a result, the air mixing rate into the cleaning water supplied to the jet holes 7 is lowered, and it works more effectively, such as noise reduction and filth discharge.

(Third embodiment)
FIG. 7 is a longitudinal sectional view of a siphon-zette flush toilet according to a third embodiment of the present invention.
The siphon jet flush toilet of the third embodiment is an example in which the position of the opening end 3a of the water supply pipe 9 in the second embodiment is submerged in the stored water below the stored water surface 5. Since the configuration other than the water supply pipe 9 is the same as that of the second embodiment, the description thereof is omitted.
In this embodiment, when the cleaning water is supplied from the flash valve 1, the cleaning water pushes out the air in the water supply pipe 9 and discharges it from the opening 3b. The washing water is directly supplied to the jet conduit 4 b and discharged from the jet hole 7. Since the opening end portion 3a of the water supply pipe 9 is submerged, it is possible to supply vigorous cleaning water directly from the opening end portion 3a to the jet hole 7, which is effective for discharging filth.

The longitudinal cross-sectional view of the siphon-zette type flush toilet of 1st Example. The top view of the siphon-zette type flush toilet shown in FIG. FIG. 3 is an external perspective view of a water supply pipe 3. The longitudinal cross-sectional view of the siphon jet flush toilet of 2nd Example. FIG. 5 is a plan view of the siphon set flush toilet shown in FIG. 4. The external appearance perspective view of the water supply piping 9. FIG. The longitudinal cross-sectional view of the siphon jet flush toilet of 3rd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Flash valve 2 ... Water supply port 3, 9 ... Water supply piping 3a ... Opening end 3b ... Opening 4 ... Water supply passage 4b ... Zette waterway 5 ... Reservoir surface 6b, 6c ... Rim connection part 6d, 6e ... Rim waterway 6f, 6g ... Rim spout 7 ... Zet hole 8 ... Trap

Claims (4)

A water supply opening provided at the rear or rear upper surface of the toilet bowl, a zette waterway communicating with a zet hole provided at the bottom of the toilet bowl part, a rim waterway communicating with a rim water discharge hole provided at the top of the toilet bowl part, In a siphon-zette flush toilet equipped with a water supply passage that communicates with the water supply port and supplies cleaning water to the Zet waterway and the rim waterway,
A water supply pipe is disposed in a space extending from the water supply passage to the upstream side of the jet conduit, and one end of the water supply pipe is connected to the water supply port in a watertight manner, and an opening at the other end is connected to the jet guide. A siphon-zette flush toilet, characterized in that it faces and faces the stored water above the water seal height position of the stored water in the water channel. 2. The siphon jet flush toilet according to claim 1, wherein the water supply pipe has an opening at a height position close to a height position of a communication portion between the rim conduit and the water supply passage. A water supply opening provided at the rear or rear upper surface of the toilet bowl, a zette waterway communicating with a zet hole provided at the bottom of the toilet bowl part, a rim waterway communicating with a rim water discharge hole provided at the top of the toilet bowl part, In a siphon-jet flush toilet equipped with a water supply passage that communicates with the water supply port and supplies wash water to the Zet waterway and the rim waterway,
A water supply pipe is disposed in a space extending from the water supply passage to the upstream side of the Zet conduit, and one end of the water supply pipe is connected to the water supply port in a watertight manner, and the height of the opening at the other end Is submerged in the reservoir water below the water seal height position of the reservoir water in the Zet conduit, and the water supply pipe is at a height position close to the height position of the communication portion between the rim conduit and the water supply passage. A siphon-zette flush toilet, characterized in that an opening is provided in the toilet. 4. The siphon jet flush toilet according to claim 1, wherein the water supply pipe has flexibility.

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