JP6659207B2 - Flush toilet - Google Patents

Description

  The present invention relates to a flush toilet.

  Patent Literature 1 discloses a conventional toilet facility. The toilet equipment includes a flush toilet, a drain connection pipe, and a hand-washing device. The flush toilet has a toilet bowl portion and a toilet drainage channel communicating with the downstream side of the toilet bowl portion. The drainage connection pipe has an upstream end connected to a discharge port opened at the downstream end of the toilet drainage channel, and a downstream end connected to an inflow port opened at the upstream end of the drainage pipe drawn into the toilet room. . In addition, the drainage connection pipe has an inlet on the intermediate side face into which handwash drainage discharged from the handwash device flows. The hand-washing device has a water-discharge device, a hand-washing bowl, and a hand-washing drainage passage communicating with a downstream side of the hand-washing bowl and communicating with an inflow port provided in the drainage connection pipe. In this toilet equipment, since the handwash drainage can flow into the inflow port provided in the drainage connection pipe which constitutes a part of the drainage route for the toilet drainage and drainage, the drainage path for the handwash drainage can be easily formed. it can.

JP 2008-88770 A

  However, since the drainage connection pipe of Patent Document 1 has an inflow port on the intermediate side surface, an upstream end for connecting to the discharge port of the toilet drainage channel and a downstream end for connecting to the inflow port of the drainage pipe. In addition to the part, a minimum length for providing the inflow port is required. For this reason, there is a possibility that the length of the drainage connection pipe is longer than that of the drainage connection pipe without the inflow port. In this case, if the length of the drainage connection pipe is long, and if the space for connecting the drainage connection pipe between the outlet of the toilet drainage channel and the inlet of the drainage pipe is narrow, the drainage connection pipe should be connected to the toilet drainage channel. It becomes difficult to connect between the outlet and the inlet of the drain pipe, and there is a possibility that a drain path for toilet drain and hand wash drain cannot be formed.

  The present invention has been made in view of the above-described conventional circumstances, and provides a flush-type toilet capable of draining hand-washing drainage into a drainage drainage route of a toilet drain even in a narrow space and draining well. It is an issue to be solved.

The flush toilet of the present invention, a toilet bowl,
A toilet drainage channel that communicates with the downstream side of the toilet bowl portion, and in which the flow of the toilet drainage discharged from the toilet bowl portion continuously changes from the ascending direction to the descending direction ,
A drain pipe portion projecting rearwardly from the rear wall forms a part of the toilet drain passage,
And an upper space formed in front of the front SL after the wall on the upper side than the drainage pipe section,
An inflow port provided so that hand-washing drainage flows into the toilet drainage channel from the upper space ;
Are provided with a toilet body formed integrally .

  Since the flush toilet has an inflow port into which the handwash drainage flows into the toilet drainage channel, there is no need to connect a member for providing the inflow port to the toilet drainage channel. For this reason, if there is a space similar to a flush toilet that does not allow hand-washing drainage to flow into the toilet drainage drainage channel, a flushing toilet can be installed, and handwashing drainage flows into the toilet drainage channel and drains well. be able to.

  In this flush toilet, hand-washing drainage flows in from above a region where the flow of the toilet drainage discharged from the toilet bowl portion continuously changes from the rising direction to the falling direction. In this way, the position where the handwash drainage flows in is the highest position in the toilet drainage passage, so that the handwash drainage that has flowed in from the inlet well flows into the toilet drainage passage, and the toilet wash drainage passage. It can be discharged downstream. In particular, when the flush toilet is flushing and the toilet drainage is flowing through the toilet drainage channel, the handwash drainage that flows in from the inflow port rides on the flow of toilet drainage in the toilet drainage channel to form a toilet drainage channel. It is surely discharged to the downstream side.

It is sectional drawing which shows the flush toilet of an Example. It is sectional drawing which shows the attachment state of the nozzle of an Example. It is a perspective view showing the nozzle of an example.

  A preferred embodiment of the present invention will be described.

In the flush toilet of the present invention, a toilet drain trap is formed by the toilet bowl portion and the toilet drain channel, and the upper space is such that the flow of the toilet drain changes continuously from the rising direction to the falling direction. are formed over the regions of the inlet from the wash waste water downstream of the top of the toilet drain passage formed in the said toilet drain trap may flow. In this case, it is possible to reliably prevent the hand-washing drainage flowing into the toilet drainage channel from the inflow port to the toilet bowl side.

  In the flush toilet of the present invention, the hand-washing drainage may flow in from the inflow port along a flow direction of the toilet drainage. In this case, when the flush toilet is flushing the toilet and the toilet drainage is flowing through the toilet drainage channel, the handwash drainage flowing into the toilet drainage channel from the inflow port rides on the flow of the toilet drainage in the toilet drainage channel. It is surely discharged to the downstream side of the toilet drainage channel.

In flushing toilet of the present invention, the the wash water discharge flow wash drain pipe is separate from, and characterized in that it comprises a Nozzle forming said inlet being connected to the wash water discharge pipe. Further, the nozzle may be bent so that the flow direction of the hand-washing drainage changes along the flow direction of the toilet drainage . In this case, the nozzle allows the hand-washing drainage to flow in a desired direction. Therefore, if handwash drainage is made to flow downstream from the top of the toilet drain trap, handwash drainage is reliably prevented from flowing to the toilet bowl side, and drainage to the downstream of the toilet drainage channel is ensured. can do.

  The nozzle may be provided with an air hole. In this case, it is possible to prevent the siphon action from occurring in the drain path of the hand washing water from the hand washing device to the nozzle, and to prevent the hand washing drain trap provided between the hand washing device and the nozzle from being completely sealed.

  Next, an embodiment of a flush toilet according to the present invention will be described with reference to the drawings.

<Example>
As shown in FIG. 1, the flush toilet of the embodiment has a toilet bowl 10 having a toilet bowl 11 and a toilet drain 13, and is fixed to the rear upper surface of the toilet bowl 10. And a cleaning tank 30 for supplying the same. The washing tank 30 and the rear part of the toilet main body 10 are housed in a cabinet 50A partitioned by a front plate 51. The toilet body 10 has a toilet seat device 70 having a toilet seat 71 and a toilet lid 73 rotatably supported on the upper surface exposed in front of the front plate 51.

  The toilet drainage channel 13 has a first descending channel 13A, an ascending channel 13B, and a second descending channel 13C. The first descending channel 13A descends while being inclined rearward continuously to the lower end opening of the toilet bowl portion 11 that is opened in the vertical direction. The ascending flow path 13B rises while being inclined rearward continuously to the lower end of the first descending flow path 13A. The second descending flow path 13C is inclined obliquely downward from the upper end 13X of the lower surface of the ascending flow path 13B toward the downstream side, and opens rearward. The second descending flow path 13C is formed by a drain pipe portion 15 protruding rearward from a rear wall surface of the toilet body 10. The outlet 13D of the toilet drainage channel 13 opened at the downstream end of the drainage pipe portion 15 is connected by a drainage connection pipe 90 to the inflow opening opened at the upstream end of the drainage pipe 91 drawn out from the wall surface of the toilet room. .

  The washing water stays at the lower end of the toilet bowl portion 11 located below the upper end 13X of the lower surface of the ascending channel 13B, the first descending channel 13A, and the upstream of the ascending channel 13B to form a water seal. . Thus, the toilet bowl trap 11 is formed by the toilet bowl portion 11 and the toilet drainage channel 13. The upper end 13X of the lower surface of the ascending channel 13B is the top 13X of the toilet drain trap.

  The toilet drainage channel 13 is located above a boundary between the upflow channel 13B and the second downflow channel 13C (an area where the flow of toilet drainage discharged from the toilet bowl 11 continuously changes from the ascending direction to the descending direction). In addition, an upper space S in which the nozzle 20 forming the inflow port 29 into which the hand washing drainage flows is formed. As shown in FIG. 2, the upper space S has a rear wall surface formed by a rear wall surface 17 above the drain pipe portion 15 of the toilet body 10.

  The nozzle 20 is inserted into and attached to the upper space S from a mounting hole 17A penetrating the rear wall surface 17 above the drain pipe portion 15 of the toilet body 10. The downstream end of the hand washing drain pipe 45 is connected to the upstream end of the nozzle 20. The hand washing drain pipe 45 has an upstream end connected to the drain port 41A of the hand washing machine 41 of the hand washing device 40. The hand washing drain pipe 45 forms a hand washing drain trap 47 on the way. The hand washing device 40 has a hand washing machine 41 and a faucet fitting 43 provided on the hand washing machine 41. The hand washing device 40 is fixed on the top plate 53 of the cabinet 50B along the wall surface of the toilet room, and the hand washing drain pipe 45 passes through the cabinets 50A and 50B and is connected to the nozzle 20. The handwash drainage flows into the nozzle 20 through the handwasher 41 and the handwash drainpipe 45.

  The nozzle 20 has a protruding tube portion 21, a front end portion 23, an inclined piece 25, and a connection portion 27, as shown in FIGS. The protruding tube portion 21 has a substantially cylindrical shape, and extends forward from the rear wall surface 17 of the toilet body 10 in the upper space S. The front end portion 23 is continuous with the front end of the protruding tube portion 21 and is formed as a substantially hemispherical curved surface. The inclined piece 25 has a semi-cylindrical shape that opens upward, and is inclined obliquely downward from the lower end of the front end 23 toward the rear. The connecting portion 27 is inserted with a packing P interposed between the connecting portion 27 and the mounting hole 17A. The connecting portion 27 extends to the outside from the rear wall surface 17 of the toilet body 10, and is connected to a hand-washing drain pipe 45. The inclined piece 25 extends slightly downward from the upper side surface 14 of the upstream end of the second descending flow path 13 </ b> C of the toilet drainage channel 13. The hand-washing drainage discharged along the inclined piece 25 of the nozzle 20 flows in the flow direction of the toilet drainage flowing toward the second descending flow path 13C.

  In this way, the direction in which the handwash drainage that has flowed into the nozzle 20 from the rear end thereof flows toward the front, changes the flow direction on the inner surface of the front end 23 of the nozzle 20, and is directed obliquely downward and rearward. An outflow inlet 29 is formed. In this manner, the nozzle 20 allows hand-washing drainage to flow in a desired direction (downstream from the top 13X of the toilet drainage trap). For this reason, it is possible to reliably prevent the handwash drainage flowing into the toilet drainage channel 13 from the inflow port 29 from flowing to the toilet bowl portion 11 side, and to reliably discharge the handwash drainage to the toilet drainage channel 13.

  The nozzle 20 has a rectangular air hole 21A penetrating through the upper end surface of the protruding tube portion 21. For this reason, it is possible to prevent the siphon action from occurring in the hand washing drain pipe 45 (hand washing drain passage) and prevent the hand washing drain trap 47 provided in the hand washing drain pipe 45 from being completely sealed.

  In this flush toilet, the flow of the toilet drainage discharged from the toilet bowl 11 continuously changes from the upward direction to the downward direction at the boundary between the upward flow path 13B and the second downward flow path 13C of the toilet drainage path 13. An inlet 29 through which hand washing drainage flows in is provided by the nozzle 20 arranged in the upper space S formed above the area (the area to be washed). For this reason, in this flush toilet, there is no need to connect a member for providing an inflow port to the toilet drain 13. Therefore, if there is a space similar to a flush toilet that does not allow hand-washing drainage to flow into the drainage route of the toilet drain, the flush toilet can be installed. In this manner, the flush toilet can flow the hand-washing wastewater into the toilet drainage path (a path through which the toilet wastewater discharged from the toilet bowl part 11 downstream of the toilet bowl part 11 flows) and drain well. it can.

  In addition, in this flush toilet, since the position into which the hand washing drainage flows is the highest position in the toilet drainage passage, the hand washing drainage flowing from the inlet 29 flows into the toilet drainage channel 13 well, It can be discharged downstream of the toilet drainage channel. In particular, in a state in which the flush toilet is being flushed and the toilet drainage is flowing in the toilet drainage channel 13, the handwash drainage flowing in from the inlet 29 rides on the flow of the toilet drainage in the toilet drainage channel 13. It is surely discharged to the downstream side of the drainage channel.

  Further, in this flush toilet, the hand-washing drainage flowing out of the nozzle 20 forming the inflow port 29 flows downstream from the top 13X of the toilet drain trap. Therefore, it is possible to reliably prevent the hand-washing drainage flowing into the toilet drainage channel 13 from flowing to the toilet bowl 11 side.

The present invention is not limited to the embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the embodiment, the hand-washing drainage is caused to flow downstream from the top of the toilet drainage trap. However, in the toilet drainage channel, the area where the flow of the toilet drainage continuously changes from the rising direction to the falling direction. If so, the hand-washing drainage may be caused to flow upstream from the top of the toilet drain trap.
(2) In the embodiment, the hand-washing drainage is caused to flow into the toilet drainage channel along the flow direction of the toilet drainage. However, the handwashing drainage may flow into the toilet drainage channel without following the flow direction of the toilet drainage.
(3) In the embodiment, the inflow port is formed by the nozzle, but the inflow port may be provided so as to face the toilet drainage channel without using the nozzle.
(4) In the embodiment, the nozzle is bent, but need not be bent.
(5) In the embodiment, the air hole is provided in the nozzle, but the air hole need not be provided in the nozzle.

11: toilet bowl 13: toilet drainage channel 13X: top of toilet drain trap 20: nozzle 21A: air hole 29: inlet

Claims (6)

Toilet bowl part,
A toilet drainage channel that communicates with the downstream side of the toilet bowl portion, and in which the flow of the toilet drainage discharged from the toilet bowl portion continuously changes from the ascending direction to the descending direction,
A drain pipe part that forms a part of the toilet drain channel and projects rearward from a rear wall surface, and a toilet body that is integrally formed,
Through a space provided above a boundary where the flow of the toilet drainage in the toilet drainage channel continuously changes from the upward direction to the downward direction , handwash drainage flows into the toilet drainage channel from a handwash drainage pipe , wherein the toilet drainage channel, flushing toilet of the forward of the rear wall upper in from the drainage pipe section, characterized in that it inlet is provided to the hand washing waste water flows. A toilet drain trap is formed by the toilet bowl portion and the toilet drain channel,
2. The flush toilet according to claim 1, wherein hand-washing wastewater flows into the toilet from the inflow port downstream of a top of the toilet drain trap formed in the toilet drainage channel. 3.   3. The flush toilet according to claim 1, wherein the handwash drainage flows in from the inflow port along a flow direction of the toilet drainage. 4.   The nozzle according to any one of claims 1 to 3, wherein the nozzle is formed separately from the hand washing drain pipe and is connected to the hand washing drain pipe to form the inlet. A flush toilet.   The flush toilet according to claim 4, wherein the nozzle is bent so that a flow direction of the hand-wash drainage changes along a flow direction of the toilet drainage.   The flush toilet according to claim 4 or 5, wherein the nozzle is provided with an air hole.

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