JP4114204B2 - Drain socket - Google Patents

Description

  The present invention relates to a drainage socket of a flush toilet, and more particularly, a flush toilet in which drainage from a flush toilet and a drainage path of another device are merged to communicate these drainage paths with drainage pipes provided on a floor surface. Related to the drain socket.

  In a toilet equipped with a flush toilet and a hand-washer, the waste water from the flush toilet and the waste water from the hand-washer are combined and discharged into a single drain pipe. In this piping system, as shown in FIG. 5, a drainage socket 100 that joins a drainage channel B1 from a flush toilet B and a drainage channel L1 from a hand-washer (not shown) and discharges it to a drainage pipe D. Is used. This piping method is convenient because it is not necessary to newly start up a drainage pipe for a hand-washer, particularly when a hand-washer is added to an existing toilet.

  Japanese Patent Application Laid-Open No. 2003-27563 describes a toilet unit in which a flush toilet and a hand-washer are arranged via an L-shaped counter. In this toilet unit, a conduit for draining water from the hand-washer passes through an L-shaped counter and is connected to a drain socket on the downstream side of the trap of the flush toilet. Accordingly, the waste water from the flush toilet and the waste water from the hand-washer are merged downstream of the trap of the flush toilet and discharged from the drain pipe.

JP 2003-27563 A (FIGS. 7 and 8)

  However, because the configuration of the downstream pipe line of the flush toilet trap is related to the siphon action of the flush toilet, depending on the position and shape of the confluence outlet that joins the drainage from the flush toilet and the drainage from the handwasher There is a problem that the siphon action may be weakened. This is because when negative pressure is generated in the pipeline due to the drainage from the flush toilet, the air is sucked into the pipeline from the merging outlet of the hand-washer drainage. This is because the formation of a necessary water film in the pipeline may be inhibited, or the duration of the siphon action may be inhibited.

  In addition, depending on the configuration of the pipeline at the junction, the sewage discharged from the flush toilet may flow back to the handwasher drainage channel through the junction outlet, so that filth may accumulate in the handwasher drainage pipeline. There is a problem of clogging the road. Furthermore, when the drainage from the flush toilet flows in the pipeline and negative pressure is generated in the pipeline, the sealed water in the trap of drainage formed in the pipeline between the handwasher and the junction outlet is There is a problem that it may cause a breakage that is sucked out and breaks the water in the handwasher.

Accordingly, an object of the present invention is to provide a drain socket in which siphon action is not weakened.
Another object of the present invention is to provide a drain socket in which filth discharged from a flush toilet is unlikely to accumulate in a drainage channel that joins drainage from the flush toilet.
Furthermore, an object of the present invention is to provide a drain socket that does not adversely affect the drainage channels of other devices joined to drainage from flush toilets.

In order to achieve the above object, the present invention provides a drainage socket for a flush toilet in which the drainage channel of a flush toilet and the drainage channel of another device are joined and the drainage channel is communicated with a drainage pipe provided on the floor surface. A vertical inlet line having a socket inlet connected to the drainage channel of the flush toilet at its upper end and extending in a substantially vertical direction, and a horizontal line extending in the horizontal direction connecting the vertical channel and the drainage pipe. A conduit, a buffer chamber inlet formed around the vertical pipe and connected to a drainage path of the other device, and a confluence outlet opened above the horizontal pipe and in the vicinity of the drainage pipe And the vertical pipe line and the buffer chamber form an annular space by a nested structure of cylindrical members having different inner diameters, and from the annular space above the horizontal pipe line Side to open in the vicinity of the drainage pipe It has a pulling space.

In this invention comprised as mentioned above, the waste_water | drain from a flush toilet flows in from a socket inflow port, and is discharged | emitted by the drain pipe through a vertical pipe line and a horizontal pipe line. In addition, wastewater from other devices flows in from the buffer chamber inlet, passes through the buffer chamber, flows out from the junction outlet, merges with drainage from the flush toilet, and is discharged to the drain pipe.
According to the present invention configured as described above, since the wastewater from other devices merges with the wastewater from the flush toilet through the buffer chamber, the wastewater from the flush toilet passes through the vertical pipe and the horizontal pipe. The pressure drop in the vertical pipe and the horizontal pipe generated by flowing hardly affects the drainage from other devices. In addition, since the junction outlet opens at the upper part of the horizontal pipe, the filth discharged together with the washing water from the flush toilet does not accumulate on the junction outlet and clog the drainage channels of other devices. Moreover, since the merge outlet is open near the drain pipe, it is much less susceptible to the pressure drop in the merge horizontal pipe.

Furthermore, the vertical pipe line and the buffer chamber form an annular space by a nested structure with cylindrical members having different inner diameters, and from the annular space to the vicinity of the drain pipe through the upper side of the horizontal pipe line. Since it has a horizontal pulling space that opens, by combining cylindrical members that can be manufactured relatively easily, an annular space can be formed around the vertical pipe, and the horizontal pulling space is also Since it is formed above the horizontal duct, entry of filth into the buffer chamber made up of the lateral pulling space and the annular space is prevented.

  The horizontal pipe line is an obliquely descending pipe line connecting the vertical pipe line to the drainage pipe, and if the horizontal pulling space is formed obliquely downward toward the junction outlet, The pipe has a substantially constant inner space, and smooth drainage without clogging of dirt can be realized.

  Further, if the horizontal pulling space is formed by a flow path wall formed integrally with the horizontal pipe line and a cover material attached above the flow path wall, Regardless of the shape of the horizontal conduit through which the drainage flows, the shape of the cover material can easily form a horizontal pulling space having a sufficient volume.

  According to the present invention, in the drainage socket of the flush toilet, the siphon action of the toilet bowl is rarely weakened, the waste discharged from the flush toilet is less likely to accumulate, and even if it joins with the drainage channel of other equipment, there is an adverse effect. The effect that it is hard to give is acquired.

Next, a drain socket according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, with reference to FIG. 1 thru | or FIG. 4, the drain socket of 1st Embodiment of this invention is demonstrated. 1A and 1B are views showing a state in which the drain socket according to the first embodiment of the present invention is connected to a tank-type flush toilet and a hand-washer, wherein FIG. 1A is a plan view and FIG. 1B is a side view. . FIG. 2 is a sectional view taken along line XX in FIG.

  As shown in FIG. 1, the drain socket 1 according to the first embodiment of the present invention is connected to the drain B1 of the flush toilet B and the drain L1 of the hand-washer L, and these drains are provided on the floor F. To the drainage pipe D.

  As shown in FIG. 1 or 2, the drain socket 1 includes a vertical pipe 2 connected to the drain B1 of the flush toilet B, and a horizontal pipe 4 extending in a substantially horizontal direction from the lower end of the vertical pipe. And a buffer chamber 6 formed around the vertical pipe 2.

  The vertical pipe line 2 extends vertically downward from a socket inlet opening upward. The socket inlet is covered with packing P1, and watertightness and airtightness between the drain B1 of the flush toilet B and the socket inlet are secured. Further, an elbow portion is provided at the lower end of the vertical pipe line 2, and the pipe line is bent substantially at a right angle.

  The horizontal pipe line 4 is connected to the elbow part of the vertical pipe line 2 and extends substantially horizontally. A bend portion is provided at the downstream end of the horizontal pipe 4, and the horizontal pipe 4 is connected to a drain pipe D provided on the floor surface F.

  The buffer chamber 6 arranges the cylindrical member 12 concentrically around the cylindrical vertical pipe 2, that is, arranges the vertical pipe 2 in a nested structure in the cylindrical member 12. It is formed by. An inlet pipe portion 12 a is formed on the lower side surface of the cylindrical member 12 on the opposite side of the horizontal duct 4, and constitutes a buffer chamber inlet 6 a of the buffer chamber 6. A junction outlet 6b of the buffer chamber 6 is formed in the vicinity of the drain pipe D on the side of the horizontal pipe 4. As a result, the buffer chamber 6 includes an annular space 6c formed inside the cylindrical member 12, and a lateral pulling space 6d that extends from the lower portion of the cylindrical member 12 toward the joining outlet 6b. Further, the buffer chamber inlet 6a is located higher than the junction outlet 6b, and the bottom surface of the buffer chamber 6 is inclined so as to become lower from the buffer chamber inlet 6a toward the junction outlet 6b. In addition, the channel cross-sectional area of the annular space 6c of the buffer chamber 6 is configured to be wider than the channel cross-sectional area of the drainage channel L1.

  Next, the installation method of the flush toilet using the drain socket 1 of 1st Embodiment of this invention is demonstrated. First, the drain socket 1 is disposed and temporarily fixed to the floor surface F via the packing P2 so that the bend portion of the horizontal pipe line 4 communicates with the drain pipe D provided on the floor surface F. Further, the length of the horizontal pipe line 4 and the direction of the drain socket 1 are adjusted to position the socket inlet of the vertical pipe line 2 at a predetermined position. Next, after confirming the position and direction of the drain socket 1, the drain socket 1 is permanently fixed. The watertightness and airtightness between the drain socket 1 and the drain pipe D are ensured by the packing P2.

Next, the drainage channel L1 of the hand washing machine L is connected to the inlet pipe portion 12a of the cylindrical member 12. That is, the drainage channel L1 and the buffer chamber inlet 6a of the buffer chamber 6 communicate with each other. In addition, a trap (not shown) is formed in the drainage channel L1 between the hand washer L and the buffer chamber inlet 6a. Next, the flush toilet B is arranged on the floor surface F so that the drainage channel B1 of the flush toilet B is inserted into the socket inlet 2a of the vertical pipeline 2. Further, the drainage channel L1 extending from the drainage socket 1 to the hand washing device L is passed through a notch B2 formed on the back surface of the flush toilet B. Next, the position and direction of flush toilet B are confirmed, and flush toilet B is screwed to floor F. The watertightness and airtightness between the drainage channel B1 of the flush toilet B and the drainage socket 1 are ensured by the packing P1 placed on the socket inlet 2a.

  Next, the effect | action of the drain socket 1 of 1st Embodiment of this invention is demonstrated. First, when the washing water does not flow into the toilet bowl of the flush toilet B, the water level in the toilet bowl is maintained at the highest point of the drain trap of the flush toilet B as shown in FIG. . When washing water flows into the toilet bowl, the washing water in the toilet bowl flows into the drain socket 1 over the drain trap. The washing water that has flowed into the drain socket 1 flows down the vertical pipe 2 and hits the elbow part at the lower end and jumps up. The washing water that has jumped up forms a water film in the vicinity of the lower end of the vertical pipe 2 to generate a siphon action, and the washing water and filth in the toilet bowl are sucked. In the drain socket 1 of this embodiment, negative pressure is generated in the vertical pipe 2 and the drain B1 by the attractive force acting on the washing water filled in the vertical pipe 2, and the washing water and filth in the toilet bowl are collected. Uses siphon action to suck. In that case, since the merge outlet 6b is provided in the vicinity of the drainage pipe D which is separated from the vertical pipe 2, the influence on the siphon action is very small.

  The washing water that has passed through the vertical pipe 2 flows through the horizontal pipe 4 and is discharged to the drain pipe D. When the washing water flows through the horizontal pipe 4, the pressure in the horizontal pipe 4 decreases, so that the air in the buffer chamber 6 is sucked into the horizontal pipe 4 through the merge outlet 6 b. However, the influence of the pressure drop in the horizontal pipe line 4 is blocked by the buffer chamber 6 having a large volume, and hardly affects the drainage channel L1 of the hand-washer L connected to the buffer chamber 6. Therefore, the sealing water in the trap (not shown) formed in the drainage channel L1 between the hand washing machine L and the drainage socket 1 is sucked out, and the occurrence of the breakage is prevented. In addition, most of the filth that flows along with the washing water in the horizontal pipe 4 flows along the lower wall surface of the horizontal pipe 4, so that the merging outlet 6 b provided on the upper wall surface of the horizontal pipe 4 No filth accumulates.

  Further, the waste water from the hand washing device L flows into the buffer chamber 6 through the drain channel L <b> 1 and the buffer chamber inlet 6 a of the buffer chamber 6. The waste water flowing into the buffer chamber 6 is branched into two as shown in FIG. 2, and passes through the annular space 6c formed between the vertical pipe 2 and the cylindrical member 12 to the horizontal pulling space 6d. It flows out from the junction outlet 6b. Drainage that flows into the horizontal pipe 4 from the junction outlet 6b is discharged to the drainage pipe D. In addition, since the bottom surface of the buffer chamber 6 is inclined, the waste water that has flowed into the buffer chamber 6 does not stay in the buffer chamber 6 but flows all into the horizontal duct 4.

  According to the drain socket of the first embodiment of the present invention, since the merge outlet 6b is provided in the vicinity of the drain pipe D of the horizontal pipe 4, the siphon action of the drain socket is hindered by the merge of the drain of the other equipment. It will not be done. Moreover, according to the drain socket of this embodiment, since the junction outlet 6b is provided in the upper wall surface of the horizontal pipe path 4, the filth which flows in the drain socket flows backward into the drain path of other equipment, and other There is no accumulation in equipment drains. Furthermore, according to the drain socket of this embodiment, since the buffer chamber 6 is provided between the drain channel L1 and the horizontal pipe 4, the influence of the pressure drop in the horizontal pipe 4 affects the drain channel L1. Therefore, the sealing water of the trap provided in the drainage channel L1 is not broken.

  Next, with reference to FIG. 3 and FIG. 4, the drain socket of 2nd Embodiment of this invention is demonstrated. FIG. 3 is a full sectional view of a drain socket according to the second embodiment of the present invention, FIG. 4 is a view showing the drain socket according to the second embodiment, (a) is a plan view, and (b) is a perspective view. Indicates. As shown in FIGS. 3 and 4, the drain socket according to the second embodiment of the present invention is different from the first embodiment in that the horizontal conduit is very short.

  The drain socket 20 of the second embodiment of the present invention includes a vertical pipe 22 connected to the drain B1 of the flush toilet B, a horizontal pipe 24 extending laterally from the lower end of the vertical pipe, and a vertical pipe A buffer chamber 26 formed around the passage 22, a first leg 28 that supports and fixes the vertical pipe 22 on the floor F, and a downstream end of the horizontal pipe 24 is supported on the floor F. And a second leg 30 to be fixed.

  The vertical pipe line 22 has a socket inlet 22a that opens upward, and an elbow portion 22b at the lower end, and the socket P is covered with a packing P. A first leg portion 28 is provided at the lower end of the vertical pipeline 22 so as to protrude on both sides. The horizontal conduit 24 is formed integrally with the elbow portion 22 b of the vertical conduit 22. A bend portion 24 a is attached to the downstream end of the horizontal conduit 24. A straight pipe portion 24 b to be inserted into the drain pipe D is provided on the downstream side of the bend section 24 a and connects the drain pipe D and the horizontal pipe line 24. A substantially circular second leg portion 30 is formed around the bend portion 24a.

  The buffer chamber 26 is formed by arranging the cylindrical member 32 concentrically inside the cylindrical vertical pipe 22. An inlet pipe portion 22 c is formed on the opposite side of the horizontal duct 24 and constitutes a buffer chamber inlet 26 a of the buffer chamber 26. From the buffer chamber inlet 26 a to the junction outlet 26 b opened in the vicinity of the bend portion 24 a, an annular space 26 c formed outside the cylindrical member 32 and a lateral pulling space 26 d formed above the horizontal duct 24. Communicate through. Specifically, the horizontal pulling space 26d is configured by covering the cover material 34 on the side of the horizontal duct 24 and above the flow path wall 24c continuous with the lower portion of the cylindrical member 32. Thereby, the merge outlet 26b is located in the vicinity of the bend portion 24a of the horizontal conduit 24 spaced from the vertical conduit 22, that is, directly above the drainage pipe D. Further, the buffer chamber inlet 26a is located at a position higher than the merge outlet 26b, and the bottom surface of the annular space 26c and the lateral pulling space 26d, which are the bottom surfaces of the buffer chamber 26, extends from the buffer chamber inlet 26a to the merge outlet 26b. It is inclined to become low.

  In this manner, the drain socket 20 forms an annular space 26 c communicating with the buffer chamber inlet 26 a by fitting the cylindrical member 32 into the upper inner side of the vertical pipe 22, and the vertical pipe 22 By covering the opening provided above the bend portion 24a of the horizontal pipe line 24, which is the same member, with the cover member 34 in communication with the annular space 26c, the opening is used as a confluence outlet 26b of the buffer chamber 26. A horizontal pulling space 26d communicating with the annular space 26c is formed between the flow path wall 24c of the duct 24 and the cover member 34.

  Here, the junction outlet 26b is a cut-out portion (indicated by a two-dot chain line in FIG. 3) connected to the bend portion 24a of the flow path wall 24c, and the junction outlet 26b is provided on the upper wall of the horizontal duct 24. In some cases, it is formed as close to the drainage pipe D as possible. In this second embodiment, the elbow part 22b and the bend part 24a are continuously bent at a short distance, but the confluence outlet 26b is kept away from the elbow 22b, which is the starting point of the siphon action when draining from the flush toilet B. It is possible to prevent the generation of siphons.

In addition, the bend portion 24a is provided with an inner R to guide the drainage to the drainage pipe D, thereby preventing an increase in flow path resistance and further facilitating siphon generation.
Note that the flow path wall 24c is formed obliquely downward integrally with the horizontal conduit 24 in order to allow the drainage to flow smoothly from the elbow portion 22b to the bend portion 24a. The optimal space can be ensured by the shape of the cover member 34, which is a member different from 24.

The installation method of the drain socket 20 of 2nd Embodiment of this invention is as follows.
First, the drain socket 20 is disposed via an adhesive so that the bend portion 24a of the horizontal duct 24 communicates with the drain pipe D provided on the floor surface F. Next, a screw (not shown) is passed through the hole of the second leg 30 to temporarily fix the second leg 30 to the floor surface F. Further, the direction of the drain socket 20 is adjusted to position the socket inlet 22a of the vertical pipe line 22 at a predetermined position. Next, a screw (not shown) is passed through the hole of the first leg portion 28 to temporarily fix the first leg portion 28 to the floor surface F. After confirming the position and direction of the drain socket 20, the drain socket 20 is fixed by tightening the holes and the long holes of the first and second legs 28 and 30. The watertightness and airtightness between the drain socket 20 and the drain pipe D are ensured by an adhesive.

Next, the drainage channel L1 of the hand washing machine L is connected to the inlet pipe portion 22c. That is, the drainage channel L1 and the buffer chamber inlet 26a of the buffer chamber 26 are communicated with each other. In addition, a trap (not shown) is formed in the drainage channel L1 between the hand washer L and the buffer chamber inlet 26a. Next, the flush toilet B is placed on the floor F so that the drainage channel B1 of the flush toilet B is inserted into the socket inlet 22a of the vertical pipeline 22. Further, the drainage channel L1 extending from the drainage socket 1 to the hand washing device L is passed through a notch B2 formed on the back surface of the flush toilet B. Next, the position and direction of flush toilet B are confirmed, and flush toilet B is screwed to floor F. The watertightness and airtightness between the drainage channel B1 of the flush toilet B and the drainage socket 20 are ensured by the packing P1 placed on the socket inlet 22a.
In addition, the drain socket 20 of this 2nd Embodiment is applicable when the horizontal direction distance between the drainage channel B1 of the flush toilet B and the drainage piping D is near.

  Moreover, the effect | action of the drain socket 20 of 2nd Embodiment of this invention is also substantially the same as 1st Embodiment. Since the junction outlet 26b of the buffer chamber 26 is opened in the vicinity of the connection portion with the drain pipe D of the horizontal pipe 24, the siphon action of the drain socket 30 is inhibited by the buffer chamber 26 and the drain passage L1 connected thereto. There is nothing. Moreover, since the junction outlet 26b is located in the upper part of the horizontal pipe path 24, the filth which flows through the drain socket 30 does not flow backward, and accumulates in the buffer chamber 26 or the drain path L1. Furthermore, since the buffer chamber 26 is provided between the junction outlet 26b and the drainage channel L1, the pressure drop in the horizontal pipe 24 does not reach the drainage channel L1.

  As mentioned above, although preferable embodiment of this invention was described, a various change can be added to embodiment mentioned above. In particular, in the above-described embodiment, the drainage socket that joins the drainage from the flush toilet and the drainage from the handwasher has been described, but the present invention is not limited to drainage from the flush toilet and any drainage other than the flush toilet. It can be applied to a drain socket that joins.

It is a figure which shows a mode that the drain socket of 1st Embodiment of this invention was connected to the tank-type flush toilet and the hand-washing machine, (a) is a top view, (b) shows a side view. XX sectional drawing of FIG. 1 is shown. The whole sectional view of the drain socket of a 2nd embodiment of the present invention is shown. It is a figure which shows the drain socket of 2nd Embodiment of this invention, (a) is a top view, (b) shows a perspective view. The figure which shows the drainage socket which joins the drainage channel from the conventional flush toilet, and the drainage channel from a hand-washer.

Explanation of symbols

B ... flush toilet B1 ... drainage channel D ... drainage piping F ... floor surface L ... hand washing machine L1 ... drainage channel P1 ... packing P2 ... packing 1 ... drainage socket 1 of the first embodiment of the present invention 2 ... vertical pipeline 4 ... Horizontal pipe 6 ... Buffer room 6a ... Buffer room inlet 6b ... Merge outlet 6c ... Annular space 6d ... Horizontal pulling space 12 ... Cylindrical member 20 ... Drainage socket 22 of the second embodiment of the present invention 22 ... Vertical pipe 24 ... Horizontal duct 26 ... Buffer chamber 26a ... Buffer chamber inlet 26b ... Merge outlet 26c ... Annular space 26d ... Horizontal pulling space 28 ... First leg 30 ... Second leg 32 ... Cylindrical member 34 ... Cover Material

Claims (3)

A drainage socket of a flush toilet that joins the drainage channel of the flush toilet and the drainage channel of other equipment and communicates these drainage channels with drainage pipes provided on the floor surface.
A vertical pipe line having a socket inlet connected to a drainage channel of the flush toilet at its upper end and extending in a substantially vertical direction;
A horizontal pipe extending in the horizontal direction connecting the vertical pipe and the drainage pipe;
A buffer chamber having a buffer chamber inlet formed around the vertical pipe and connected to a drain of the other device; and a buffer chamber provided with a confluence outlet at an upper portion of the horizontal pipe and opened in the vicinity of the drain pipe; ,
The vertical pipe line and the buffer chamber form an annular space by a nested structure of cylindrical members having different inner diameters, and the drainage pipe passes through the upper side of the horizontal pipe line from the annular space. A drainage socket characterized by having a laterally extending space that opens in the vicinity of . The horizontal pipe is an obliquely descending duct connecting the vertical duct to the drainage pipe, and the lateral pulling space is also formed obliquely downward toward the merge outlet. Drainage socket as described. 3. The horizontal pulling space is formed by a flow path wall that is formed integrally with the horizontal duct and a cover material that is attached above the flow path wall. Drain socket.

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