JP2016216972A - Water closet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water closet capable of restraining water from gathering in a conduit.SOLUTION: A water closet comprises: a bowl in which a rim part and a water gathering part are formed; a rim water discharge port 28 for discharging wash water to an inner peripheral surface of the rim part; a jet water discharge port 30 for discharging the wash water toward the water gathering part; a water supply port 24 opened in the rear of a water closet 2; a common conduit 32a formed continuously from the water supply port 24; a restrictor conduit 32b having a flow passage cross-sectional area restricted to be more than a flow passage of the common conduit 32a; a rim conduit 32c connected to the rim water discharge port 28 from the restrictor conduit 32b; a jet conduit 32d connected to the jet water discharge port 30 after branching off from the rim conduit 32c; and a tubular member 34 having an inflow port 34a provided in the common conduit 32a at a position lower than a flow passage bottom surface of the restrictor conduit 32b and having an outflow port 34b provided in the jet conduit 32d at a position lower than the inflow port 34a and upper than the water gathering part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a flush toilet that discharges filth by washing water supplied from a washing water source.

Conventionally, as a flush toilet that discharges filth by washing water supplied from a washing water source, a bowl-shaped bowl part and a rim part formed on the upper edge of the bowl part are provided, and the rear upper part includes There has been known a flush toilet in which a water conduit for discharging wash water supplied from a wash water source to a bowl portion is formed (for example, see Patent Document 1).
The flush toilet in Patent Document 1 is characterized in that a flush toilet can be manufactured by a rim portion and a bowl portion that are integrally formed with each other.

  In such flush toilets, the manufacturing process can be reduced compared to the case where the rim part and the bowl part are molded separately, so that the manufacturing efficiency of the toilet body can be improved and the manufacturing cost can be reduced. be able to.

JP 2013-194410 A

  On the other hand, there is a so-called wall-mounted flush toilet in which the entrance (water supply port) of the water conduit opens behind the toilet and is attached to the wall as a flush toilet that discharges filth by the wash water supplied from the wash water source. . Such a wall-mounted flush toilet has a longer time and distance until the wash water is supplied to the bowl portion from the wash water source than when a water storage tank as a wash water source is mounted above the flush toilet. For this reason, the water flow of the washing water decreases and the washing performance is deteriorated. Therefore, in order to improve the cleaning performance by increasing the pressure of the cleaning water discharged from the cleaning water source to the bowl portion, a throttle conduit is provided in a part of the conduit. As described above, by providing the throttle conduit in a part of the conduit, the flow rate of the cleaning water is increased and the water is vigorously discharged to the bowl portion, so that the cleaning performance of the flush toilet is improved.

  However, when the flush toilet of Patent Document 1 capable of integrally molding the rim portion and the bowl portion and the wall-mounted flush toilet described above are combined, the flow path of the water conduit near the water supply port due to the configuration of the molding die It must be formed such that the bottom surface of the throttling conduit is higher than the height position of the bottom surface. As a result, the structure is such that water accumulates in the waterway near the water supply port (in the waterway upstream of the throttle waterway), and microorganisms propagate in the waterway near the water supply port, causing red mold. There is a concern that black mold will occur.

  Then, this invention is made | formed in order to solve the said subject, and it aims at provision of the flush toilet which suppresses that water accumulates in a water conduit.

  A flush toilet according to one aspect of the present invention is a flush toilet that discharges filth by flush water supplied from a flush water source, and a bowl in which a rim portion is formed above and a water storage portion is formed below. A rim spout that spouts wash water on the inner peripheral surface of the rim portion to form a swirling flow, a jet spout that spouts wash water toward the reservoir, and a rear opening of the flush toilet A water supply port, a common water channel formed continuously from the water supply port, a channel bottom surface formed at a position higher than the channel bottom surface of the common water channel, and a channel cross-sectional area larger than the channel of the common water channel A squeezed squeeze conduit, a rim conduit that leads from the squeeze conduit to the rim spout, a zette conduit that branches off from the rim conduit and leads to the sette spout, and below the bottom of the restrictor conduit An inflow opening is provided in the common water channel at the position below the inflow opening and And a tubular member outlet is provided in the jet water conduit at a position above the water unit.

  According to this configuration, since the tubular member having the inlet provided in the common conduit and the outlet provided below the inlet is provided, the water accumulated in the common conduit can be Can be discharged. Therefore, it can suppress that water accumulates in a common water conduit.

  In the flush toilet according to one aspect of the present invention, preferably, a part of the tubular member that defines the inflow port is in contact with the flow path bottom surface of the common water conduit.

  According to this configuration, since at least a part of the inflow port of the tubular member is in contact with the channel bottom surface of the common conduit, the water accumulated in the common conduit can be efficiently discharged to the bowl. Therefore, it can suppress more that water accumulates in a common water conduit.

  Flush toilet according to one aspect of the present invention, a water storage tank in which wash water is stored, a water supply pipe that connects the water storage tank and the water supply port of the flush toilet, and a deodorization pipe that is branched and connected from the water supply pipe And a fan system that is provided in the deodorization pipe and sucks air in the bowl through a common water conduit.

  According to this structure, since the air in the bowl of the flush toilet is exhausted through the common water conduit and the deodorizing pipe, the odor in the bowl can be exhausted. Therefore, the comfort of the user of the flush toilet can be improved. Moreover, since the water accumulated in the common water conduit is discharged to the bowl by the tubular member, the generation of abnormal noise can be suppressed when the air in the bowl is exhausted through the common water conduit.

  ADVANTAGE OF THE INVENTION According to this invention, in a flush toilet, it can suppress that water accumulates in a water conduit.

It is a schematic sectional drawing of the toilet system which concerns on one Embodiment of this invention. It is a top view of the flush toilet concerning one embodiment of the present invention. It is side surface sectional drawing of the flush toilet seen along the AA line of FIG. In the flush toilet concerning one Embodiment of this invention, it is the elements on larger scale which expanded the B section which shows a part of water conduit.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

<Configuration of toilet bowl system>
First, a toilet system and a flush toilet according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic perspective view of a toilet system according to an embodiment of the present invention. FIG. 2 is a top view of the flush toilet according to the embodiment of the present invention. FIG. 3 is a side sectional view of the flush toilet as seen along line AA in FIG. In FIG. 1 and FIG. 2, the water level of the water reservoir 12c is indicated by WL1.

As shown in FIG. 1, the toilet system 1 includes a flush toilet 2, and the flush toilet 2 is attached to a wall surface 6 at a position away from the floor surface 4. On the back side of the wall surface 6, a water storage tank 8 for storing washing water is attached at a position higher than the upper surface of the flush toilet 2, and this water storage tank 8 is connected to a water supply or the like as a washing water source. An operation unit (not shown) is attached to the wall surface 6. When the operation unit is operated, the flush water in the water storage tank 8 is supplied to the flush toilet 2, and the flush toilet 2 is washed. .
Further, a drain pipe 10 for discharging filth is provided on the back side of the wall surface 6, and the filth from the flush toilet 2 is discharged to the outside by the drain pipe 10.

  Here, in this embodiment, the side where the flush toilet 2 is provided with respect to the floor surface 4 is upward (upward), the opposite side is downward (downward), and the flush toilet 2 is with respect to the wall surface 6. The side to be provided is the front direction (front), the opposite side is the rear direction (rear), the right side is the right direction (right side) and the left side is the left direction (Left side)

A water supply port 24 is opened above the back surface (rear surface) of the flush toilet 2, and the water supply port 24 and the water storage tank 8 of the flush toilet 2 are connected to the water supply port 24 of the flush toilet 2. 12 through a tank side pipe 14.
The tank side pipe 14 extends vertically downward from the water storage tank 8 and extends in the horizontal direction from there to the flush toilet 2. A branch portion 16 is provided on the downstream side of the tank side pipe 14, and the common pipe 12 extends in the horizontal direction from the branch portion 16 toward the flush toilet 2. The common pipe 12 passes through the wall surface 6 and is connected to the water supply port 22 of the flush toilet 2 through a connection member 22 that is a seal member.
In addition, the common piping 12 and the tank side piping 14 and the branch part 16 fulfill | perform the function as water supply piping.

  Further, the branch portion 16 is a so-called T-shaped joint pipe, and the branch portion 16 branches from the tank side pipe 14 and is connected to a deodorizing pipe 18. The deodorizing pipe 18 extends vertically upward from the branch portion 16 and is bent in a direction opposite to the direction in which the wall surface 6 is provided. An air passage communicating with the outside is formed in the deodorization pipe 18, and a fan 20 that sucks air in the flush toilet 2 is provided in the middle of the air passage.

<Structure of flush toilet>
As shown in FIGS. 1 and 2, the flush toilet 2 includes a bowl 26 formed on the front side, a water conduit 32 that supplies wash water from the water supply port 24 toward the bowl 26, and a water conduit 32. A tubular member 34 to be provided, and a drain trap pipe 36 extending from below the bowl 26 to communicate with the drain pipe 10 are provided.

The bowl 26 of the flush toilet 2 has a rim portion 26a formed upward, a filth receiving surface 26b formed continuously downward from the rim portion 26a, and a reservoir portion 26c formed downward. doing.
The rim portion 26a is formed such that its inner peripheral surface rises in the vertical direction. Further, a filth receiving surface 26b is formed so as to be smoothly inclined downward from the rim portion 26a. Further, a bowl-shaped water reservoir 26c is formed below the filth receiving surface 26b continuously from the filth receiving surface 26b.

On the front side of the rim portion 26a, a rim water spouting port 28 that opens the swirling flow by discharging the washing water to the inner peripheral surface of the rim portion 26a is opened.
Below the filth receiving surface 26b and on the right side surface (see FIG. 2), a jet outlet 30 for discharging cleaning water toward the water reservoir 26c is opened. The jet water outlet 30 opens at a position higher than the stored water level WL1.
Note that the rim water spouting port 28 and the jet water spouting port 30 function as an air intake port for sucking air in the flush toilet 2.

<Configuration of the water conduit>
As shown in FIG. 3, the water conduit 32 includes a common water conduit 32 a formed continuously from the water supply port 24, a throttle water conduit 32 b having a channel cross-sectional area narrower than the common water conduit 32 a, It has a rim water conduit 32 c that leads from the water passage 32 b to the rim water outlet 28, and a jet water conduit 32 d that branches from the rim water conduit 32 c and leads to the jet water outlet 30.

  The common water conduit 32a is formed substantially horizontally from the water supply port 24 toward the front, and is connected to the throttle water conduit 32b. The flow path bottom surface of the throttle water conduit 32b is formed at a position higher than the flow channel bottom surface of the common water conduit 32a. On the other hand, the flow path upper surface of the throttle water conduit 32b is formed at substantially the same height as the flow path upper surface of the common water conduit 32a, and is formed continuously from the upper surface of the common water conduit 32a. Further, the common water conduit 32a is a portion continuous with the same diameter from the portion to which the common pipe 12 is connected, and the throttle water conduit 32b is from the common water conduit 32a to a rim water conduit 32c described later.

As shown in FIG. 2, the rim water guide channel 32 c extends substantially horizontally (see FIG. 3) from the rear to the front while curving along the inner peripheral surface of the rim portion 26 a, and is connected to the rim spout 28. ing. Further, the rim water guide channel 32c extends from the throttle water guide channel 32b to the rim water discharge port 28 from the portion where the flow path is bent in the direction of circling the rim portion 26a.
Returning to FIG. 3, the zette water channel 32 d branches downward from the rim water channel 32 c and curves along the inner peripheral surface of the filth receiving surface 26 b (see FIG. 2) from the upper rear toward the lower front. It extends and is connected to the jet outlet 30. The zette water conduit 32d extends from the portion where the flow channel is bent downward from the rim water conduit 32c to the jet water outlet 30.

<Configuration of tubular member>
Inside the water conduit 32, a tubular tubular member 34 made of flexible rubber is provided. The tubular member 34 extends from the common water conduit 32 a in the vicinity of the water supply port 22 through the squeezed water conduit 32 b to the jet water outlet 30 through the throttle water conduit 32 b. The tubular member 34 is formed along the flow path bottom surfaces of the common water conduit 32a, the throttle water conduit 32b, and the jet conduit 32d, and is fixed in the water conduit 32 with an adhesive or the like.
The inlet 34a of the tubular member 34 is provided in the common water conduit 32a at a position below the flow channel bottom surface of the throttle water conduit 32b. The outlet 34b of the tubular member 34 is provided below the inlet 34a and above the stored water level WL1 in the stored water portion 26c.
In addition, a part of the tubular member 34 that defines the inflow port 34a comes into contact with and adheres to the bottom surface of the connection member 22 that is the flow channel bottom surface of the common water conduit 32a.

<Configuration of drain trap line>
The drain trap pipe 36 extends obliquely upward from an inlet 36a opened below the reservoir 26c, passes through the highest point 36b, then extends obliquely downward to reach the outlet 36c, and the drain pipe 10 (see FIG. 1). It is connected to the. The stored water level WL1 of the flush toilet 2 is substantially equal to the height of the highest point 36b of the drain trap pipe 36.

<Operation and action>
Below, with reference to FIGS. 1-4, the flow of the water in the water conduit 32 and the tubular member 34 which concerns on embodiment of this invention is demonstrated.

  FIG. 4 is a schematic cross-sectional view of a flush toilet schematically showing the flow of water in the water conduit according to the embodiment of the present invention. The stored water level in the water conduit 32 is indicated by WL2.

First, when the user operates an operation unit (not shown), the wash water in the water storage tank 8 flows down from the water storage tank 8 through the tank side pipe 14, and passes through the branch part 16 and the common pipe 12 to the toilet body 2. Supplied.
The washing water that has flowed into the water supply port 24 flows into the common water conduit 32a as it is, and flows from the common water conduit 32a to the throttle water conduit 32b by the momentum of water generated by the difference in height between the water storage tank 8 and the toilet body 2. Here, since the flow passage cross-sectional area of the throttle water conduit 32b is configured to be smaller than that of the common water conduit 32a, the flow velocity increases in the throttle water conduit 32b. The wash water flowing through the narrow water conduit 32b flows into the rim water conduit 32c and the jet water conduit 32d toward the rim water outlet 28 and the jet water outlet 30 while maintaining a flow velocity faster than that of the common water conduit 32a. .

The washing water that has flowed into the rim water conduit 32 c is discharged from the rim water discharge port 28. The wash water discharged from the rim spout 28 forms a swirling flow in the bowl 26, and the filth receiving surface 26b of the bowl 26 is washed.
At the same time, the wash water that has flowed into the jet conduit 32 d is jetted downward from the jet outlet 30 toward the water reservoir 26 c of the bowl 26. The washing water ejected from the jet outlet 30 forms a swirling flow in the vertical direction (up and down direction), and thereby effectively discharges filth from the drain trap pipe 36.

When washing water was discharged into the bowl from the rim water outlet 28 and the jet water outlet 30, the accumulated water level WL1 rose above the height of the highest point 36b of the drain trap pipe 36 and was discharged into the bowl. Soil is discharged from the drain trap pipe 36 to the drain pipe 10 by the momentum of the washing water.
Then, when a predetermined time elapses after the supply of the wash water from the water storage tank 8 is started, the supply of the wash water from the water storage tank 8 ends.

  Here, as shown in FIG. 4, the flow path bottom surface of the throttle water conduit 32b is formed at a position higher than the flow channel bottom surface of the common water conduit 32a. Therefore, after the supply of the cleaning water from the water storage tank 8 is completed, water accumulates in the common conduit 32a and the common pipe 12 that are located upstream of the throttle conduit 32b.

  At this time, since a part of the tubular member 34 that defines the inflow port 34a is fixed to the bottom surface of the connection member 22 that is the flow channel bottom surface of the common water conduit 32a, the inflow port 34a of the tubular member 34 is connected to the common water conduit. 32a and the common pipe 12 are located in the vicinity of the bottom of the flow path. On the other hand, the outlet 34b of the tubular member 34b is provided at a position lower than the inlet 34a of the tubular member 34. Therefore, a siphon action occurs in the tubular member 34, and the water accumulated in the common water conduit 32a and the common pipe 12 is drawn into the inlet 34a of the tubular member 34, and is directly discharged from the outlet 34b through the tubular member 34. Is done. Then, the water level WL2 of the water accumulated in the common water conduit 32a and the common pipe 12 is lowered to the height position of the upper end of the inflow port 34a. The water discharged from the outlet 34b is discharged as it is from the jet outlet 30 to the bowl 26 through the jet conduit 34d.

  Returning to FIG. 1, when the user operates the operation unit (not shown) to drive the fan 20, the air in the bowl 26 of the flush toilet 2 is inhaled from the rim water outlet 28 and the jet water outlet 30 which are air inlets. Is done. The air sucked from the rim water outlet 28 and the jet water outlet 30 is discharged from the water supply port 24 to the common pipe 12 through the rim water conduit 32c, the jet water conduit 32d, the throttle water conduit 32b, and the common water conduit 32a, and deodorized. It is discharged from the pipe 18 to the outside.

Here, the water accumulated in the common conduit 32a and the common pipe 12 is discharged to the bowl 26 by the tubular member 34, and the accumulated water level WL2 of the water accumulated in the common conduit 32a and the common pipe 12 is at the inlet 34a. It has been lowered to the height position. Therefore, compared with the case where the tubular member 34 is not provided, the air passage cross-sectional area in the common water conduit 32a and the common pipe 12 is formed larger.
As a result, when the air sucked from the rim water outlet 28 and the jet water outlet 30 passes through the common water conduit 32a and the common pipe 12, it is difficult to be affected by the water accumulated in the common water conduit 32a and the common pipe 12. The occurrence of abnormal noise is suppressed.

  According to the flush toilet 2 according to the above-described embodiment of the present invention, the tubular member 34 having the inflow port 34a provided in the common water conduit 32a and the outflow port 34b provided below the inflow port 34a is provided. Therefore, the water accumulated in the common water conduit 32 a can be discharged to the bowl 26. Therefore, it can suppress that water accumulates in the common water conduit 32a.

  Further, according to the flush toilet 2 according to the embodiment of the present invention described above, since at least a part of the inlet 34a of the tubular member 34 is in contact with the flow channel bottom surface of the common water conduit 32a, the common water conduit 32a. The water accumulated inside can be efficiently discharged into the bowl. Therefore, it can suppress more that water accumulates in the common water conduit 32a.

  Further, according to the toilet system 1 according to the above-described embodiment of the present invention, the air in the bowl 26 of the flush toilet 2 is exhausted through the common water conduit 32a and the deodorizing pipe 18, so that the inside of the bowl 26 The odor can be exhausted. Therefore, the comfort of the user of the flush toilet 2 can be improved. In addition, since the water accumulated in the common conduit 32a is discharged to the bowl 26 by the tubular member 34, the generation of abnormal noise is suppressed when the air in the bowl 26 is exhausted through the common conduit 32a. Can do.

<Modification>
As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above.

  For example, the washing water source for supplying the washing water to the flush toilet 2 is not limited to a tank type such as the storage tank 8 of the gravity water supply source shown in the above-described embodiment, and the tap water supply pressure is directly set. It may be a water supply direct pressure type, a flash valve type, or a supply of cleaning water using the supplementary pressure of a pump.

  For example, the tubular member 34 has been described as being formed of flexible rubber, but may be formed of other resin materials or metals. However, from the viewpoint of manufacturing cost, ease of mounting, etc., it is preferable to form the rubber.

  For example, in addition to the rim water spouting port 28 and the jet water spouting port 30, an air intake port for sucking air in the flush toilet 2 may be provided. However, from the viewpoint of manufacturing cost and the like, it is preferable that the rim water spouting port 28 and the jet water spouting port 30 function as an air intake port.

  Further, the configuration in which the tubular member 34 is fixed in the water conduit 32 by an adhesive or the like has been described. However, for example, a fixing member for fixing the tubular member 34 in the water conduit 32 may be separately provided, or the tubular member 34 may be provided. The member 34 may be welded in the water conduit 32.

  Moreover, in this embodiment mentioned above, although the form applied to the flush toilet flush toilet 2 is demonstrated, it is not limited to such a form, It applies also to the form of other flush toilets Is possible. For example, the present invention can be applied to toilet bowls other than a flush toilet bowl, such as a so-called siphon flush toilet bowl, in which filth is washed away by a siphon action by the drain trap pipe 36.

  The elements included in each of the embodiments described above can be combined as much as technically possible, and combinations thereof are also included in the scope of the present invention as long as they include the features of the present invention.

DESCRIPTION OF SYMBOLS 1 Toilet system 2 Flush toilet 4 Floor surface 6 Wall surface 8 Reservoir tank 10 Drain pipe 12 Common pipe 14 Tank side pipe 16 Branch part 18 Deodorizing pipe 20 Fan 22 Connection member 24 Water supply port 26 Bowl 26a Rim part 26b Soil receiving surface 26c Reservoir 28 Rim outlet 30 Zet outlet 32 Conduit channel 32a Common conduit 32b Constricted conduit 32c Rim conduit 32d Zet conduit 34 Tubular member 34a Inlet 34b Outlet 36 Drain trap conduit 36a Inlet 36b Highest point 36c Exit WL1, WL2 Reservoir water level

Claims (3)

A flush toilet that discharges filth by washing water supplied from a washing water source,
A bowl in which a rim portion is formed on the upper side and a water storage portion is formed on the lower side;
A rim spout for forming a swirling flow by discharging cleaning water to the inner peripheral surface of the rim part;
A jet outlet for discharging washing water toward the water reservoir,
A water supply opening opened behind the flush toilet,
A common water channel formed continuously from the water supply port;
A throttle conduit having a channel bottom surface formed at a position higher than the channel bottom surface of the common conduit, and having a channel cross-sectional area narrower than that of the common conduit;
A rim conduit leading from the throttle conduit to the rim spout;
A Zett waterway that branches off from the rim waterway and leads to the Zet spout;
An inlet is provided in the common conduit at a position below the bottom surface of the throttle conduit, and an outlet is provided in the Zet conduit at a position below the inlet and above the reservoir. A provided tubular member;
A flush toilet equipped with. The flush toilet according to claim 1, wherein a part of the tubular member that defines the inflow port is in contact with a flow path bottom surface of the common water conduit. The flush toilet according to claim 1 or 2,
A water storage tank in which wash water is stored;
A water supply pipe connecting the water storage tank and the water supply port of the flush toilet;
A deodorization pipe branched and connected from the water supply pipe;
A fan that is provided in the deodorization pipe and sucks air in the bowl through the common water conduit;
A toilet system consisting of.

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