JP5685830B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap for a bathtub and a washing place, and in particular, has a receiving chamber for receiving the washing drainage and a bathtub drainage channel into which the bathtub drainage flows, and water is shared from the receiving chamber and the bathtub drainage channel. The present invention relates to a drain trap that is drained through an outlet. More specifically, the present invention relates to a drain trap configured to efficiently discharge washroom drainage.

  Japanese Patent Application Laid-Open No. 2005-2005 discloses a drain trap having a receiving chamber for receiving washroom drainage and a bathtub drainage channel into which bathtub drainage flows and from which water is drained from the receiving chamber and the bathtub drainage channel through a common outlet. 232936 and JP 2009-167590.

  In the conventional drainage trap, the end of the bathtub drainage channel faces the common outlet, and the opening area of the washing ground drainage channel at the common outlet part is the opening area of the outlet. It is smaller than that. For this reason, for example, when a large amount of water has flowed into the common outlet from the washing ground drainage flow channel by pouring water into the washing ground with a bucket or the like, the washing ground drainage is not smoothly discharged, and the washing ground drainage The discharge capacity is reduced. Moreover, there is a possibility that the wastewater from the washing place accumulates in the vicinity of the outlet and flows backward from the bathtub drainage flow path to the bathtub.

JP 2005-232936 A JP 2009-167590 A

  The present invention relates to a drain trap having a receiving room for receiving washroom drainage and a bathtub drainage channel into which bathtub drainage flows, and water is drained from the receiving chamber and the bathtub drainage channel through a common outlet. The purpose is to ensure that the wastewater from the washroom is discharged efficiently even if it flows temporarily in large quantities.

The drain trap according to claim 1 extends through a trap chamber into which washroom drainage flows from the receiving port, a confluence outlet in which the trap chamber is connected via a washroom drainage channel, and a lower side of the trap chamber, A drain trap for a bathtub and a washing place, one end of which is connected to an inflow port for the bathtub drain, and a drain trap for the other end of the bathtub drain passage and an end of the washing drain drain channel A confluence chamber is provided between the confluence outlet, the opening area of the washing ground drainage channel facing the confluence room is larger than the opening area of the confluence outlet on the confluence chamber side, and the bottom surface of the confluence chamber is filled with water. It is horizontal in the outflow direction, and the height of the lowermost part of the bottom surface of the merging chamber and the height of the lowermost part of the inner surface of the merging outlet on the merging chamber side are substantially the same. is there.

The drain trap according to claim 2 is the drain trap according to claim 1, wherein the bottom surface of the junction chamber is positioned lower than the end portion of the washroom drainage channel and extends from the end portion of the washroom drainage channel to the bottom surface of the junction chamber. It is a descending wall surface, and the end of the bathtub drainage channel is located on the falling wall surface .

  A drainage trap according to a third aspect is characterized in that, in the first or second aspect, the end of the bathtub drainage channel is projected into the merge chamber.

The drain trap according to claim 4 is the tip of the bathtub drainage channel according to claim 3 , wherein the member surrounding the end portion of the bathtub drainage channel has a pointed cross-sectional shape that decreases in thickness toward the tip in the projecting direction. The outer surface of the bathtub drainage channel is an inclined surface that is oblique to the extending direction of the bathtub drainage channel.

In the drain trap of the present invention, a junction chamber is provided between the end of the wash basin drain and the end of the bathtub drain and the junction outlet, and the junction at the end of the bathtub drain The opening area of the most part is made wider than the opening area of the merge outlet. For this reason, the washing ground drainage flows smoothly from the washing ground drainage channel into the joining chamber and is smoothly discharged to the joining outlet.
By providing a falling wall and expanding it downward, the washing ground drainage gains momentum due to the height drop of the falling wall and is discharged more smoothly to the merging outlet and is less likely to flow back to the washing area. .

  By causing the end portion of the bathtub drainage channel to protrude into the junction chamber, it is possible to prevent the washing ground drainage from flowing backward from the junction chamber to the bathtub drainage channel. By forming a falling wall surface from the end of the washroom drainage channel to the bottom of the merge chamber, and protruding the bathtub drainage channel from this falling wall, the backflow from the merger chamber to the bathtub drainage channel is effectively prevented Is done.

  By providing an inclined surface on the outer surface of the member surrounding the end of the bathtub drainage channel, the member has a truncated cross-sectional shape with a wall thickness that decreases toward the end, so that the junction chamber can be connected to the bathtub drainage channel. Backflow is prevented more effectively.

It is a perspective view of the drain trap concerning an embodiment. It is a perspective view of the washing place drainage vicinity vicinity. It is a perspective view inside a drain trap. It is a perspective view inside a drain trap. It is the VV sectional view taken on the line of FIG. It is the VI-VI sectional view taken on the line of FIG. (A) is a sectional view taken along line VII-VII in FIG. 6, and (b) and (c) are sectional views taken along line BB and CC in FIG. It is the VIII-VIII sectional view taken on the line of FIG. It is a longitudinal cross-sectional view near a merge outlet. It is a horizontal sectional view near the merge outlet. It is a schematic perspective view of the bathroom provided with the drain trap concerning an embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 11 is a schematic perspective view of a bathroom provided with a drain trap according to the embodiment, FIG. 1 is a perspective view of the drain trap, and FIG. 2 is a view of the vicinity of a washing ground drain inlet with the hair catcher removed. It is a perspective view.

  As shown in FIG. 11, the floor of the bathroom 1 is composed of a bathtub pan (not shown) and a washing pan 2, and the bathtub 3 is installed on the bathtub pan. A drainage basin 4 is provided on the bathtub 3 side of the washing area pan 2. The drainage basin 4 is formed in a recessed shape integrally with the washing place pan 2. A drain pan 5 is attached to the upper surface of the drainage basin 4.

  A drainage trap 10 is connected to the drainage port 3a of the bathtub 3 and the drainage basin 4 of the washing place pan 2 from the lower side.

  As shown in FIG. 1, on the upper surface in the longitudinal center of the drain trap 10, there is provided a washing basin drainage inlet 11 through which drainage from the washing basin 2 flows through the drainage basin 4, and the upper surface on the other end side. Is provided with a bathtub drainage inlet 12 through which drainage from the bathtub 3 flows through the drainage port 3a.

  In addition, a confluence outlet 14 through which water flowing into the drain trap 10 flows out from the washing ground drain inlet 11 and the bathtub drain inlet 12 is provided on the other end side of the drain trap 10. A hair catcher 37 having a handle 37b is detachably installed at the washing ground drainage receiving port 11. Further, a drain pipe 6 (FIG. 11) is connected to the junction outlet 14.

  Next, the detailed structure of the drain trap 10 will be described with reference to FIGS.

  FIG. 2 is a perspective view of the vicinity of a washing ground drainage inlet with the hair catcher removed. 3 is a perspective view of the drain trap with the canopy plate removed, FIG. 4 is a perspective view of the bottom plate 22 removed, and FIG. 5 is a cross-sectional view taken along the line V-V in FIG. Is a sectional view taken along line VI-VI in FIG. 1, FIG. 7A is a sectional view taken along line VII-VII in FIG. 6, and FIG. 7B is a sectional view taken along line BB in FIG. 7 (c) is a cross-sectional view taken along the line CC of FIGS. 7 (a) and 7 (b), FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 6, and FIG. FIG. 10 is a perspective view of a vertical section in the vicinity of the outlet 14, and FIG. 10 is a perspective view of a horizontal section in the vicinity.

  As clearly shown in FIGS. 5 and 6, a trap chamber (sealed chamber) 20 is provided in the drain trap 10 below the wash station drain inlet 11. It communicates with the merge outlet 14 via the merge chamber 50. Below the bottom plate 22 of the trap chamber 20, there is provided a bathtub drainage channel 23 that connects the bathtub drainage inlet 12 and the junction outlet 14.

  A sealing cylinder 32 is suspended in the trap chamber 20 so as to be locked to the inward flange 31 on the inner peripheral surface of the washing ground drainage receiving port 11. A flange portion 32 a (FIG. 5) is provided at the upper end of the water seal cylinder 32, and the flange portion 32 a is locked to the flange portion 31. There is a clearance between the lower end of the sealing cylinder 32 and the bottom plate 22 and the lower end plate portion 41 described later, and the water in the sealing cylinder 32 flows out through this clearance. As clearly shown in FIG. 2, a peripheral plate portion 32 b is extended on the inner peripheral surface of the upper portion of the water sealing cylinder 32. Water from an outlet 44 of the water guide member 40 described later flows out to the peripheral plate portion 32b.

  As clearly shown in FIGS. 5 and 6, a trap mounting flange 34 is screwed into the washing ground drainage receiving port 11, and a trap at the bottom of the drainage tub 4 is disposed between the upper surface portion 35 on the main body side and the flange 34. The drain trap 10 is fixed to the washing place pan 2 by sandwiching the edge of the mounting opening 4a (FIG. 5) via the packing.

  A hair catcher 37 is detachably mounted on the trap mounting flange 34 so as to be fitted into the trap mounting flange 34 by engaging with a convex portion 36 (FIG. 2) on the inner peripheral surface of the trap mounting flange 34.

  Below the hair catcher 37, an opening 39 (see FIGS. 5 and 6) is provided in the bottom plate 22, and a water guide member 40 is attached to the opening 39.

  As shown in FIGS. 3, 5, and 6, the water guide member 40 includes a disk-like lower end plate portion 41 that engages with the opening 39, and a plurality of standing water from the lower end plate portion 41 (in this embodiment, 2) pipe portions 42. As shown in FIG. 5, a flange portion 41a and a claw portion 41b are provided on the outer peripheral surface of the lower end plate portion 41 so that the flange portion 41a and the claw portion 41b are sandwiched from above and below the edge portion of the opening 39. By engaging, the water guide member 40 is detachably attached to the bottom plate 22.

  The water guide member 40 has an outlet 44 provided on the circumferential direction directing surface of the upper end portion 43 of the pipe portion 42. The outlet 44 is provided on the upper side of the fin portion 32b so that water flows out toward the upper surface of the fin portion 32b.

  Next, the configuration in the vicinity of the merge outlet 14 from the trap chamber 20 will be described in detail with reference to FIGS.

  From the trap chamber 20 toward the merging outlet 14, the bottom surface of the wash basin drain channel 21 gradually has an upward slope.

  A junction chamber 50 of the washing ground drainage channel 21 and the bathtub drainage channel 23 is provided between the portion where the upward slope is increased and the junction outlet 14. The bottom surface of the merge chamber 50 is lower than the portion where the washroom drainage channel 21 rises, and a falling wall surface 52 is formed between the portion where the washroom drainage channel 21 rises and the bottom surface of the merge chamber 50. ing.

  The bathtub drainage channel 23 is located at the center of the up-and-down slope portion of the washroom drainage channel 21 in the left-right width direction (left-right width direction when viewed from the flow toward the confluence outlet 14). ing. The end portion 23e of the bathtub drainage channel 23 is located at the center of the falling wall surface 52 in the left-right width direction. The merge outlet 14 is located in front of the end portion 23e.

  The bathtub drainage channel 23 extends in an upward slope toward the junction outlet 14 on the lower side of the washroom drainage channel 21 in the same manner as the washroom drainage channel 21.

  As described above, the bathtub drainage channel 23 is partitioned from the trap chamber 20 and the washroom drainage channel 21 by the bottom plate 22. The bottom plate 22 has an extending portion 22a that extends along the upward gradient of the washing ground drainage channel 21, and the extending portion 22a extends to the bathtub drainage channel end 23e. The upper surface of the extending direction end portion 22b of the bottom plate 22 is at the same level as the upper surface of the portion of the bathtub drainage channel 21 that has risen as shown in FIGS.

  As shown in FIGS. 7 and 8, leg plate portions 22k are suspended from the left and right sides of the bottom plate end portion 22b, and the leg plate portions 22k are fitted between the holding plate portions 50j and 50k on the drain trap body side. Yes.

  The end portion 23 e of the bathtub drainage channel 23 protrudes into the merge chamber 50 from the falling wall surface 52. Further, the end portion 22b of the bottom plate 22 and the end edge 51 of the leg plate portion 22k at the distal end portion in the protruding direction of the distal end portion 23e have a pointed cross-sectional shape that becomes thinner toward the distal end side. In this embodiment, an inclined surface is formed on the outer surface of the bathtub drainage channel 23. That is, as shown in FIG. 7B, the edge 51 on the upper surface of the bottom plate 22 has a downward slope toward the tip in the protruding direction. Moreover, as shown in FIG. 7 (c), the end edge 51 of the outer side surface of each leg plate portion 22k is inclined so as to approach the inside of the bathtub drainage channel 23 toward the front end in the protruding direction.

  Thus, since the end part 23e of the bathtub drainage flow path 23 is protruded into the merge chamber 50, and the edge 51 in the protruding direction has a pointed cross-sectional shape, the bathtub drainage flow path is formed from the merge chamber 50. The loss factor of the flow toward 23 is large. As a result, the water that has flowed from the washroom drainage channel 21 into the merge chamber 50 is less likely to flow into the bathtub drainage channel 23. For this reason, even if a large amount of water flows into the washroom drainage receiving port 11 at a time and this water flows into the merge chamber 50 from the washroom drainage channel 21, it is prevented from flowing back to the bathtub drainage channel 23 side. Suppressed and prevented from flowing back into the bathtub 1.

  In this embodiment, the bottom plate end portion 22b and the leg plate portion 22k surrounding the end portion 23e of the bathtub drainage channel 23 have a downward U-shaped cross section as shown in FIGS. The end portion of 23 may be a short tube and protrude into the merge chamber 50.

  In the above embodiment, as clearly shown in FIGS. 7 (b) and 7 (c), the end edge 51 has a sloped cross-sectional shape cut into a flat shape, but a curved cross-sectional shape curved in a convex or concave shape. It may be.

  In the above-described embodiment, the bottom plate end portion 22 b and the leg plate portion 22 k are projected into the merge chamber 50, but only a part of these may be projected into the merge chamber 50.

In this embodiment, the opening area S _{1 at} the end of the wash basin drainage channel 21 (that is, the opening area of the portion facing the merging chamber 50) S ₁ is larger than the opening area S ₃ of the merging outlet 14. 5 times or more, particularly preferably 1.5 to 6 times, most preferably 2 to 4 times. For this reason, the water that has risen through the washing ground drainage channel 21 smoothly flows into the merge chamber 50. The vertical height of the falling wall surface 52 is preferably about 10 to 30 mm, particularly about 15 to 25 mm.

The opening area _{S 2} of the distal end 23e of the tub drain passage 23 is preferably 5-20% particularly 10-15% of the opening area _{S 1} of the distal portion of the washing area drainage passage 21.

  Next, the operation of the drain trap 10 will be described.

  Drainage from the washing basin 2 flows into the trap chamber 20 through the drainage basin 4 and the washing basin drainage inlet 11, passes through the lower side of the sealing tube 32, and the washing basin drainage channel 21, the merging chamber 50, and the merging outlet 14. To the drain pipe 6. At this time, as described above, the washing ground drainage from the washing ground drain passage 21 smoothly flows into the joining chamber 50 and is difficult to flow into the bathtub drain passage 23 from the joining chamber 50. For this reason, while washing ground drainage is discharged | emitted smoothly, the backflow to the bathtub 1 is also prevented. When the outflow of the washing ground drainage stops, the sealed water remains in the trap chamber 20, and the lower end of the sealing cylinder 32 is submerged in the sealing water, so that the odor of the drain pipe 6 enters the bathroom from the washing ground drain receiving port 11. Backflow is prevented.

  Drainage from the bathtub 3 flows out to the drainage pipe 6 through the drainage port 3 a, the bathtub drainage inlet 12, the bathtub drainage flow path 23, the junction chamber 50, and the junction outlet 14. At this time, a part of the water flowing through the bathtub drainage flow path 23 flows into the water guide member 40 in the middle of the bathtub drainage flow path 23, passes through the pipe portion 42, and goes around from the outlet 44 into the trap chamber 20. Therefore, a swirling flow is formed in the receiving chamber 20. Moreover, the water level in the trap chamber 20 rises due to the inflow of water, the hair catcher 37 is immersed in the swirling flow, and dust such as hair in the hair catcher 37 is collected at the center of the hair catcher 37. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher 37 are immersed in the swirling flow to be purified, and slime and the like are removed.

  In particular, in this embodiment, the peripheral plate portion 32b is provided on the upper inner peripheral surface of the drain tube 32, and most of the water flowing out from the outlet 44 swirls on the peripheral plate portion 32b, so that the swirl flow is strong. Become. The waste water that has passed through the bathtub drainage flow path 23 and has flowed into the merge chamber 50 from the end portion 23e travels straight through the merge chamber 50 and is smoothly discharged from the merge outlet 14.

  When the outflow of the bathtub drainage stops, the sealed water remains in the bathtub drainage flow path 23 up to the level of the lower edge of the merge outlet 14, so that the odor of the drainage pipe 6 flows back from the bathtub drainage inlet 12 into the bathtub or bathroom. Is prevented.

  In the above embodiment, the swirl flow is formed in the trap chamber 20, but the swirl flow forming means may be omitted.

2 Laundry Pan 3 Bathtub 4 Drainage Trap 10 Drainage Trap 11 Washroom Drainage Inlet 12 Bathtub Drainage Inlet 14 Junction Outlet 20 Trap Room 21 Washroom Drainage Channel 22 Bottom Plate 23 Bathtub Drainage Channel 23e Bathtub Drainage Channel Terminal 32 Sealed Cylinder 37 Hair Catcher 40 Water Conveying Member 42 Pipe Part 50 Junction Chamber 51 Edge 52 Falling Wall

Claims (4)

A trap room where washroom drainage flows from the receiving port;
A confluence outlet in which the trap chamber is connected via a washroom drainage channel;
A bathtub drainage channel extending through the lower side of the trap chamber and having one end side connected to an inlet of the bathtub drainage;
In a drainage trap for a bathtub and a washroom comprising
A junction chamber is provided between the end of the other end of the bathtub drainage channel and the end of the washing drainage channel and the junction outlet,
The opening area of the washing ground drainage channel facing the merging chamber is larger than the opening area of the merging outlet on the merging chamber side ,
The bottom surface of the merging chamber is horizontal in the direction in which water flows out,
A drainage trap, wherein a height of a lowermost portion of the bottom surface of the merging chamber and a height of a lowermost portion of the inner surface of the merging outlet on the merging chamber side are substantially the same. In claim 1, the bottom surface of the merging chamber is positioned lower than the end portion of the washing field drainage channel, and is a falling wall surface from the terminal part of the washing field drainage channel to the bottom surface of the merging chamber,
The drain trap characterized by the end part of the bathtub drainage channel being located in the falling wall surface.   The drain trap according to claim 1 or 2, wherein an end portion of the bathtub drainage channel is protruded into the merge chamber.   The member surrounding the end portion of the bathtub drainage channel according to claim 3 has a pointed cross-sectional shape with a thickness that decreases toward the tip in the protruding direction, and is outside the bathtub drainage channel of the member. A drainage trap characterized in that the surface to be inclined is an inclined surface that is oblique to the extending direction of the bathtub drainage channel.

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