JP4842021B2 - Drain trap - Google Patents

Description

  The present invention relates to a drainage trap provided in a bathroom washroom, a sink, a sink, and the like.

A drainage trap is provided in a drainage pipe route in a bathroom washroom or the like in order to prevent odors and pests from entering the sewage side. Some drain traps have a sealed water chamber in which drainage is stored at a certain depth and an opening is formed at the upper end, and a drain port through which drainage overflowing from the opening of the sealed water chamber is discharged. A deodorizing cylinder that opens to the washing area is inserted in the sealed water chamber, and drainage from the washing area flows into the sealed water chamber from the opening at the lower end of the deodorizing cylinder and is discharged from the drain outlet. Further, a drain branch pipe that opens to the bathtub is connected to the side of the sealed chamber. The drainage from the bathtub flows into the sealed water chamber from the drainage branch pipe and is discharged from the drainage port. The bad odor from the sewage side does not enter the room because the path is blocked by the waste water (hereinafter referred to as sealed water) accumulated in the sealed water chamber (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-323297

  By the way, if the level of the sealed water accumulated in the sealed water chamber falls below the connection height of the drainage branch pipe or the lower end of the deodorizing cylinder, the drainage outlet and the drainage branch pipe, or the drainage outlet and the deodorization cylinder are in direct communication. , Will not stop the invasion of bad odor. Therefore, the length from the upper end opening of the sealed water chamber to the connection position of the drainage branch pipe (hereinafter referred to as the sealing height of the drainage branch pipe) and the length from the upper end opening of the sealed water chamber to the lower end of the deodorizing cylinder It is required to ensure sufficient (hereinafter referred to as the drainage height of the deodorizing cylinder).

Here, with regard to the sealing water height of the drainage branch pipe, the drainage height can be increased by reducing the communication port with the drainage branch pipe, but the flow resistance at the communication port increases and the discharge time increases. This is not preferable. If the height of the drain trap as a whole is changed and the connection position of the drain branch pipe is set below the sealed water chamber, the height of the sealed water will increase, but the height of the entire drain trap will increase, so the bathroom etc. Placement in becomes difficult. On the other hand, if the upper end opening of the sealed water chamber is set to a high position without changing the overall height of the drain trap, the height of the sealed water will increase, but a high-pressure washing pipe that cleans the drain outlet will be installed. The problem that it becomes difficult to insert arises.
The present invention has been made in view of such circumstances, and a main object thereof is to ensure a sufficient sealing water height while preventing an increase in the size of the drain trap.

The invention according to claim 1 of the present invention for solving the above-described problem has a bottomed cylindrical sealed water chamber capable of storing drainage and having an opening formed at the upper end, and is located above or laterally in the sealed water chamber. A drainage trap configured to discharge drainage overflowed from the sealed water chamber from a discharge port when drainage flows from the drainage chamber, and the sealed water chamber is connected to a drain branch pipe through which drainage flows from the side A first sealed water chamber and a second sealed water chamber into which drainage from above is allowed to flow, and the opening position of the upper end of the first sealed water chamber is set to be higher than the opening position of the upper end of the second sealed water chamber. The second sealed chamber is disposed so as to sandwich the first sealed chamber, and is branched into two branches so as to straddle the first sealed chamber and inserted into the second sealed chamber. , drainage track characterized by having a deodorizing cylinder to flow out to the second water seal chamber waste water flowing into the upper end from the opening of the lower end And the.
In this drainage trap, the path through which drainage flowing from above flows and the path through which drainage flowing from the side flow are made different, and the height of the opening position of the upper end of the sealed water chamber is made different for each path. The waste water flowing into the first sealed water chamber overflows from a position higher than the second sealed water chamber through the first sealed water chamber. The connection position of the drainage branch pipe can be increased by the amount that the opening position of the first sealed water chamber is relatively higher than the opening position of the second sealed water chamber.
In addition, since this drainage trap overflows from the first sealed water chamber without greatly changing the flow of drainage flowing in from the side, an increase in flow path resistance is prevented and drainage time can be shortened.
Further, in this drainage trap, the drainage from above is distributed and flows into the second sealed water chamber, so that the flow of drainage in the first sealed water chamber is not hindered.

The invention according to claim 2 is the drain trap according to claim 1 , wherein the first sealed chamber extends from one end portion on the drain branch side toward the other end portion facing the discharge port, The depth is reduced toward the other end.
In this drain trap, the depth of the first sealed chamber decreases toward the drain port, so that drainage that flows into the first sealed chamber is quickly guided to the opening at the upper end without greatly disturbing the flow. It is burned.

The invention according to claim 3 is the drain trap according to claim 1 or 2 , wherein the deodorizing cylinder is supported with a gap between the opening at the upper end of the first sealed chamber. It is characterized by that.
In this drainage trap, the drainage flowing into the first sealed chamber overflows through the gap between the deodorizing cylinder and is discharged.

Instead of arranging the second sealed chamber so as to sandwich the first sealed chamber, the first sealed chamber is placed at a position offset from the center of the sealed chamber. You may arrange | position along the outer periphery of a water chamber substantially.
In this drain trap, since the first sealed chamber and the second sealed chamber are arranged side by side, it is not necessary to make the second sealed chamber divided into two.

Moreover, the first sealed water chamber may extend toward the drain port.
In this drainage trap, drainage that flows into the first sealed water chamber flows along the first sealed water chamber, and overflows mainly from the tip side. The overflow drained water is promptly guided to the drain outlet.

  According to the present invention, the path through which the drainage water flowing from above and the path through which the drainage water flowing from the side are made different are sufficient for each path without greatly changing the external shape of the drain trap. It is possible to secure a high sealing water height and prevent breakage. Moreover, since the waste_water | drain which flows in from a side flows along the elongate 1st sealed water chamber, and overflows from opening of an upper end, the increase in drainage time can be prevented.

(First embodiment)
As shown in FIGS. 1 and 2, the drain trap 1 has a trap body 2 disposed under a washing place, and a flange member 3, a deodorizing cylinder 4, and an eye plate 5 are sequentially inserted into the trap body 2 from above. It has a configuration.

  The trap body 2 has a bottomed cylindrical sealed water chamber 11, and a drainage branch pipe 14 is integrally extended on a side portion of the sealed water chamber 11. The drainage branch pipe 14 extends in a direction substantially orthogonal to the axis (height direction) of the sealed water chamber 11. The pipe W2 connected to the drainage branch pipe 14 is connected to a drain outlet of a bathtub (not shown) at a position higher than the opening 12 at the upper end of the sealed water chamber 11. Further, a drainage chamber 13 is formed integrally with the sealed water chamber 11 so as to surround the opening 12 at the upper end of the sealed water chamber 11.

  As shown in FIGS. 2 and 3, the drain chamber 13 has a substantially annular bottom so as to surround the outer peripheral surface of the upper end of the sealed chamber 11. A bottom portion 13 </ b> A located above the drainage branch pipe 14 in the circumferential direction is extended to a position near the upper end of the sealed water chamber 11. A bottom portion 13B inclined downward extends from the bottom portion 13A, and a bottom portion 13C opposite to the extending position of the drainage branch pipe 14 in the circumferential direction is at the lowest position. And the drain port 16 is opening in the side part of the drain chamber 13 according to the position of 13 C of bottom parts. The side part of the drainage chamber 13 has a cylindrical shape, and the upper end thereof extends upward from the opening 12 at the upper end of the sealed chamber 11. The ceiling portion 17 of the drain chamber 13 is provided with an opening 18 at the center thereof. A screw 18 is carved on the inner peripheral surface of the opening 18. The flange member 3 is screwed into the opening 18.

Here, as shown in FIGS. 2 to 4, the sealed water chamber 11 is partitioned by a wall portion 21, and an elongated first sealed water chamber 22 passing through the center of the sealed water chamber 11, A second sealed water chamber 23 that is divided and disposed so as to sandwich the sealed water chamber 22. The volume of the second sealed chamber 23 is larger than the volume of the first sealed chamber 22, but it may be the same size.
As shown in FIG. 3, the first sealed water chamber 22 has a communication port 24 that continues to the drainage branch pipe 14. The opening height of the communication port 24 is smaller than the opening length of the drainage branch pipe 14 by the hanging portion 24A. The drooping portion 24A is not an essential component for the present embodiment.
The first sealed chamber 22 extends from one end where the communication port 24 is formed toward the other end on the drain port 16 side. The bottom 25 of the first sealed chamber 22 is inclined so that the other end is raised, and extends to the vicinity of the center of the trap body 2 in a side view. A side portion 26 is connected to the end of the bottom portion 25. The side portion 26 is inclined so that the other end side is raised, and the inclination angle is larger than the inclination angle of the bottom portion 25. As shown in FIGS. 2 and 3, the upper end 26 </ b> A of the side portion 26 is disposed on the inner side of the outer peripheral wall 11 </ b> A of the sealed water chamber 11 as viewed from the side, and falls steeply from here toward the bottom portion 13 </ b> C of the drainage chamber 13. A guide portion 27 is formed.

  Thus, the first sealed chamber 22 is partitioned by the bottom portion 25 and the side portion 26, the wall portion 21 and the outer peripheral wall 11A of the sealed chamber 11, and the first opening 28 is formed at the upper end thereof. Yes. On the other hand, the second sealed chamber 23 is partitioned by the wall portion 21, the outer peripheral wall 11 </ b> A and the bottom portion 11 </ b> B of the sealed chamber 11, and a second opening 29 is formed at the upper end thereof. The second opening 29 is provided at substantially the same height as the highest bottom portion 13 </ b> A of the drain chamber 13. On the other hand, the first opening 28 is provided at a position higher than the second opening 29 and the bottom 13 </ b> A of the drain chamber 13. Thus, the length from the opening position of the first opening 28 to the upper edge of the communication port 24 (the lower end of the hanging part 24A) (sealing height H1 of the drainage branch pipe 14) is a predetermined value, for example, 50 mm. It is ~ 100mm. The length from the opening position of the second opening 29 to the lower end of the deodorizing cylinder 4 (sealing height H2 of the deodorizing cylinder 4) is a predetermined value, for example, 50 mm to 100 mm.

  The flange member 3 has a cylindrical shape formed so that the drain port 32 communicates with the inside of the drain chamber 13 at the center, and a flange 31 is extended toward the radially outer side at the upper end thereof. An opening provided in the washing place BR is sandwiched between the flange 31 and the ceiling portion 17 of the drainage chamber 13 via a packing 35. A lower end portion of the drain port 32 protrudes annularly radially inward to form a receiving portion 33, and the deodorizing cylinder 4 is supported by the receiving portion 33. A plurality of ribs 34 are provided in the vicinity of the upper end of the drain port 32 so as to protrude in the vertical direction at substantially equal intervals in the circumferential direction.

  As shown in FIGS. 1, 3, and 4, the deodorizing cylinder 4 has a cylinder main body 41 that forms a flow path for drainage therein. The cylinder main body 41 has an outer diameter that can be inserted into the drain port 32, and a lower portion of the cylinder main body 41 is bifurcated so as to enter the second sealed chamber 23 across the first sealed chamber 22. At the upper end of the tube main body 41, a flange portion 42 is annularly extended radially outward, and the flange portion 42 is supported by the receiving portion 33 of the flange member 3 via a packing 43. In the state supported by the flange member 3, the bottom portion 44 straddling the first sealed water chamber 22 is above the first opening 28 of the first sealed water chamber 22 by a predetermined height. Since the bottom 44 is closed, a flow path is formed in the gap between the first opening 28 and the deodorizing cylinder 4. The bottom portion 44 is rounded up so that the portion 44A on the drain port 16 side is inclined to ensure a sufficient flow path area, but the portion 44A is not an essential component. An opening 45 is formed at the lower end of the deodorizing cylinder 4. A predetermined gap is formed between the opening 45 and the bottom 11B of the second sealed water chamber.

  The eye plate 5 is disposed so as to close the drain port 32, and a plurality of openings 51 through which drainage flows are formed. A plurality of recesses 52 are formed on the side of the eye plate 5. These recesses 52 are engaged with the ribs 34 of the flange member 3, and when mounted on the flange member 3, the upper surface of the eye plate 5 and the upper surface of the flange member 3 are substantially flush with each other.

Next, the operation of this embodiment will be described.
In normal use, drainage (sealed water) is stored in the first sealed water chamber 22 and the second sealed water chamber 23 up to the upper ends of the respective openings 28 and 29. In the deodorizing cylinder 4 inserted into the second sealed water chamber 23, the waste water that has entered from the lower end opening 45 is stored up to the same height as the second opening 29. Since the first sealed chamber 22 is filled with drainage, the vicinity of the communication port 24 of the drainage branch pipe 14 is also filled with drainage.

Waste water from the washing place BR flows into the drain port 32 through the eye plate 5. Further, as indicated by an arrow in FIG. 4, the water is led from the drain port 32 to the second sealed chamber 23 through the deodorizing cylinder 4. Since the amount of water in the second sealed water chamber 23 increases, a part of the drainage overflows from the second opening 29 of the second sealed water chamber 23 into the drainage chamber 13. The drainage flows along the bottom of the drainage chamber 13 and is discharged from the drainage port 16 to the sewer pipe W1.
Drainage from the bathtub flows into the drainage branch pipe 14. This drainage flows from the communication port 24 into the first sealed water chamber 22. In the first sealed chamber 22, the bottom portion 25 and the side portion 26 disposed along the inflow direction of the drainage are inclined, so that the drainage flows toward the first opening 28 without greatly disturbing the flow. Overflowing from the gap between the first opening 28 and the deodorizing cylinder 4. As shown by an arrow in FIG. 3, the drainage flows out into the drainage chamber 13 mainly through the gap between the inclined portion 44 </ b> A of the bottom 44, but after draining into the second sealed chamber 23, the drainage chamber 13 may overflow. Drainage flowing out from the gap between the inclined portion 44A passes through the guide portion 27 and is discharged from the drainage port 16 to the sewer pipe W1.

  According to this embodiment, the first sealed chamber 22 and the second sealed chamber 23 are provided, and the flow path passing through the deodorizing cylinder 4 and the flow path passing through the drainage branch pipe 14 are different. The sealed water height H1 on the branch pipe 14 side and the sealed water height H2 on the deodorizing cylinder 4 side can be made different. By setting the first opening 28 of the first sealed water chamber 22 to a high position, the height of the sealed water on the drainage branch pipe 14 side is set to a sufficient size without changing the height of the drainage trap 1 as a whole. Can be secured, and can be prevented more reliably. Since it is not necessary to change the height of the second opening 29 of the second sealed water chamber 23, a sufficient flow path area can be ensured between the second sealed water chamber 23 and the drainage chamber 13, and a high-pressure washing pipe or the like. Can be easily inserted. Therefore, the drainage port 16 can be easily cleaned without delaying the drainage time of the washing place BR. On the first sealed chamber 22 side, the drainage time is not delayed because the drainage easily flows toward the first opening 29 at the inclined bottom portion 25 and side portion 26.

(Second embodiment)
A second embodiment of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component as 1st embodiment. In addition, overlapping explanation is omitted. The present embodiment is characterized in that the shape of the sealed chamber and the connection position of the drainage branch pipe in the trap body are different from those in the first embodiment.
As shown in FIG. 5, the drainage branch pipe 14 is connected to the trap body 62 of the drainage trap 61 at a position offset with respect to the center line. The sealed water chamber 71 has a shape that extends laterally in accordance with the connection position of the drainage branch pipe 14. The inside of the sealed water chamber 71 is partitioned by a wall portion 72 into a first sealed water chamber 82 on the outer peripheral side and a second sealed water chamber 83 in the center. The volume of the second sealed chamber 83 is larger than the volume of the first sealed chamber 82, but it may be the same size.

  The first sealed chamber 82 is elongated in a substantially arc shape along the circumferential direction from one end to which the drainage branch pipe 14 is connected. The other end portion of the first sealed water chamber 82 is a substantially vertical side portion 84 from which drainage can flow directly into the drainage chamber 13. A first opening 85 is formed at the upper end of the first sealed water chamber 82. The position of the first opening 85 is higher than the second opening 86 formed at the upper end of the second sealed water chamber 83. With such a configuration, the length from the opening position of the first opening 85 to the upper edge of the communication port 24 (sealing height H3 of the drainage branch pipe 14) is a predetermined value, for example, 50 mm to 100 mm. ing. Further, the length from the opening position of the second opening 86 to the lower end of the deodorizing cylinder 4 (sealing height H4 of the deodorizing cylinder 4) is a predetermined value, for example, 50 mm to 100 mm.

  The deodorizing cylinder 94 has a cylindrical cylinder body 95 that can be inserted into the second sealed water chamber 83. A flange portion 42 supported by the flange member 3 extends from the upper portion of the tube main body 95. The cylinder main body 95 has an opening 96 formed at the lower end thereof, and has a length that forms a predetermined gap between the opening 96 and the bottom 83 </ b> A of the second sealed chamber 83.

The operation of this embodiment will be described.
In normal use, drainage (sealed water) is stored in the first sealed water chamber 82 and the second sealed water chamber 83 up to the upper ends of the respective openings 85 and 86. The inside of the deodorizing cylinder 94 and the vicinity of the communication port 24 of the drainage branch pipe 14 are also filled with drainage. Waste water from the washing place BR flows into the drain port 32 through the eye plate 5. Further, the water is led from the drain port 32 through the deodorizing cylinder 4 to the second sealed chamber 83, overflows from the second opening 86 into the drain chamber 13, and is discharged from the drain port 16 to the sewer pipe W1.
The drainage from the bathtub flows into the first sealed chamber 82 from the drainage branch pipe 14 through the communication port 24. The drainage overflowing from the first sealed water chamber 82 overflows mainly from the side portion 84 disposed on the front end side in the flow direction, flows into the drainage chamber 13, and is discharged from the drainage port 16 to the sewer pipe W1. . Part of the drainage flows into the second sealed water chamber 83 and overflows from the second sealed water chamber 83 to the drainage chamber 13.

  According to this embodiment, since the first sealed chamber 82 and the second sealed chamber 83 are arranged side by side, it is not necessary to make the deodorizing cylinder 94 bifurcated. The first sealed water chamber 82 provided in a position offset from the center and extending in the circumferential direction can be formed mainly using a vacant area below the bottom of the drainage chamber 13, so the second sealed water A sufficient volume can be secured in the chamber 83, the waste water on the washing place BR side can be quickly treated, and the drain port 16 can be easily cleaned. The first sealing chamber 82 can secure a sufficient sealing water height H1 from the communication port 24, and the drainage chamber 13 and the drainage port 16 are arranged in the front of the direction in which the drainage flows. , Drainage time delay is prevented.

The present invention is not limited to the above-described embodiments and can be widely applied.
For example, you may incline the bottom part 82A (refer FIG. 7) and the side part 84 of the 1st sealing chamber 82 in 2nd embodiment so that the drain outlet 16 side may go up.
In the embodiment, the drainage branch pipe 14 and the drainage outlet 16 are arranged substantially in parallel. However, the drainage branch pipe 14 and the drainage outlet 16 may be arranged so that their axes intersect (including orthogonal). good. In this case, the one end side of the first sealed chamber is formed in a direction that does not block the flow of discharge from the drainage branch pipe 14. When the other end portion side of the first sealed water chamber is curved toward the drain port 16, the drainage can be quickly drained.
Although the second sealed water chamber 23 is divided and arranged, the second sealed water chamber 23 may be communicated using the bottom 25 of the first sealed water chamber 22 or the like.

It is a disassembled perspective view of the drain trap concerning an embodiment of the invention. It is sectional drawing along AA of FIG. It is sectional drawing along the BB line of FIG. FIG. 4 is a cross-sectional view taken along the line CC in FIG. 3. It is sectional drawing explaining arrangement | positioning of the sealing chamber of the drain trap which concerns on other embodiment. It is sectional drawing along the DD line of FIG. It is sectional drawing along the EE line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,61 Drain trap 2,62 Trap body 4 Deodorant cylinder 11, 71 Sealed chamber 13 Drain chamber 14 Drain branch 16 Drain port 22, 82 First sealed chamber 23, 83 Second sealed chamber 24 Communication port 25 Bottom 26 Side H1 Seal height H2 Seal height

Claims (3)

It has a bottomed cylindrical sealed water chamber that can store drainage and has an opening at the upper end, and drainage that overflows from the sealed chamber when drainage flows into the sealed chamber from above or from the side. A drain trap configured to discharge from a discharge port,
The sealed water chamber has a first sealed water chamber to which a drainage branch pipe for allowing drainage to flow from the side is connected, and a second sealed water chamber for allowing drainage from above to flow into the first sealed water chamber. Providing an opening position of the upper end of the second sealing chamber at a position higher than the opening position of the upper end of the second sealed water chamber ,
The second sealed water chamber is arranged so as to sandwich the first sealed water chamber,
It has a deodorizing cylinder that branches into two branches so as to straddle the first sealed water chamber, is inserted into the second sealed water chamber, and drains the drained water flowing into the upper end from the lower end opening to the second sealed water chamber. A featured drain trap. The first sealed water chamber extends from one end portion on the drainage branch pipe side toward the other end portion facing the discharge port, and the depth decreases toward the other end portion. The drain trap according to claim 1 . 3. The drain trap according to claim 1 , wherein the deodorizing cylinder is supported with a gap between the deodorizing cylinder and an opening at an upper end of the first sealed water chamber.

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