JP5446123B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap provided in a bathroom washroom, and more particularly to a drain trap configured to receive bathtub drainage and form a swirling flow in the trap.

  Japanese Patent No. 3886055 discloses a drain trap that is provided with an upper portion of a wash basin drain for receiving wash basin drainage, and that accepts bathtub drainage from the side peripheral surface into the receiving chamber to form a swirling flow in the receiving chamber. Has been. A basket-like hair catcher with an open top is detachably attached to the washing ground drainage receiving port of the trap. This hair catcher hangs down near the axial center in the trap. When the bathtub drainage flows into the trap and the water level in the trap rises to form a swirling flow, the hair catcher is immersed in the swirling flow, and hair and other debris in the hair catcher collects at the center of the hair catcher. It is done. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher are immersed in the swirling flow to be purified, and slime and the like are removed.

In the drain trap of Japanese Patent No. 3886055, the receiving chamber is substantially cylindrical. The water forming the swirling flow in the receiving chamber is configured to flow out from the lower part of the peripheral wall of the receiving chamber to the side.
Japanese Patent No. 3886055

  In the above-mentioned swirl flow type drain trap, when the inflow speed of the bathtub drain water trap is small, such as when the water level of the bathtub drain is low, the swirl flow speed becomes small or the rise in the water level in the receiving room becomes slow. There is a risk that the drainage basin will be insufficiently cleaned.

  In the present invention, even when the drainage flow rate is small, the water level in the receiving chamber of the swirl flow forming type drain trap quickly rises and the swirl flow velocity increases, so that dust is collected at the center of the hair catcher. It is an object of the present invention to provide a drainage trap that can be efficiently collected and has a strong purifying action such as a hair catcher.

The drainage trap according to claim 1 is a drainage trap having a substantially cylindrical receiving chamber in which an inlet for washroom drainage is provided at an upper portion and an inlet for bathtub drainage is provided on a side peripheral surface. In the drain trap that receives the water from the bathtub drainage inlet in a substantially tangential direction, forms a swirling flow in the receiving chamber, and flows out from the outlet, a cylindrical body or a column that is coaxial with the receiving chamber is provided in the receiving chamber. An annular water channel is provided between the inner peripheral surface of the receiving chamber and the outer peripheral surface of the cylindrical body or columnar body, and the annular water channel and the washing ground drainage receiving port are provided in the annular water channel. It is characterized by communicating above .

  The drain trap according to claim 2 is characterized in that, in claim 1, a cylindrical body having an upper part and a lower part opened is provided as the cylindrical body in the receiving chamber.

  The drain trap according to claim 3 is the drain trap according to claim 2, wherein an opening communicating with the outflow port is provided on a side peripheral surface of the lower portion of the receiving chamber, and a lower end of the cylindrical body and a bottom surface of the receiving chamber It is characterized by a gap between them.

The drainage trap according to claim 4 is a drainage trap having a substantially cylindrical receiving chamber in which a washing ground drainage inlet is provided at an upper portion and a bathtub drainage inlet is provided on a side peripheral surface. In the drain trap that receives the water from the bath drain inlet in a substantially tangential direction to form a swirling flow in the receiving chamber and flows out from the outlet, a cylindrical body coaxial with the receiving chamber is provided in the receiving chamber. cage, cylindrical body, the upper is sealed, which lower part is open, the bottom of the receiving chamber, openings communicating with is provided in the outlet, the opening from the edge, for the sealing water formed The cylindrical body is erected up to the cylindrical body.

  According to a fifth aspect of the present invention, the drain trap according to any one of the first to fourth aspects is characterized in that a hair catcher is installed in an upper part of the receiving chamber.

A drainage trap according to a sixth aspect is characterized in that, in the fifth aspect, the cylindrical body or the columnar body is connected to a lower side of the hair catcher.

  The drainage trap according to claim 7 is the basket according to claim 6, wherein the hair catcher has a cage shape with an open top surface and through holes in the bottom surface and the side peripheral surface. Is connected to the bottom surface of the hair catcher and is provided with a cylindrical body having an open lower end, and the inside of the hair catcher and the cylindrical body communicate with each other through the through hole in the bottom surface of the hair catcher. Is characterized in that the lower end is separated from the bottom surface of the receiving chamber.

  The drainage trap of the present invention (Claims 1 to 7) is a swirl flow type drainage trap that receives washroom drainage and bathtub drainage, and is provided with a cylindrical body or a columnar body coaxially with the receiving chamber in the receiving chamber. It is.

  By providing the cylindrical body or the columnar body in this way, when the bathtub drainage flows into the receiving chamber from the inflow port, the swivel starts immediately in the receiving chamber, and the inner peripheral surface of the receiving chamber and the cylindrical body or columnar body The water level of the annular channel between the outer peripheral surface of the water rises quickly. Further, since the water swirls in the annular water channel, the swirling flow velocity is larger than that in the case where the water swirls in the entire receiving chamber. As a result, dust is efficiently collected at the center of the hair catcher, and the purification action of the hair catcher and the like is enhanced.

  In the drain trap according to claim 2, water swirled by swirling in the receiving chamber flows down to the inlet while swirling inside the cylindrical body, so that the drainage flow rate can be increased. . Moreover, it becomes easy to collect garbage at the center of the hair catcher.

  In the drain trap according to the third aspect, the water in the cylindrical body smoothly flows out from the lower gap of the cylindrical body by the action of the centrifugal force of the water flowing while rotating in the cylindrical body.

  In the drain trap according to claim 4, when water is not flowing, sealed water with the upper end level of the cylindrical body as the sealing surface accumulates in the receiving chamber. Since the lower part of the cylindrical body is submerged in the sealed water, the inside of the drain pipe on the downstream side of the drain trap and the bathtub and bathroom side are shut off.

  In the drain trap of claim 5, when the bathtub drainage flows into the receiving chamber and the water level in the receiving chamber rises to form a swirling flow, the hair catcher is immersed in the swirling flow, and the hair in the hair catcher Garbage such as is collected in the center of the hair catcher. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher are immersed in the swirling flow to be purified, and slime and the like are removed.

In the drainage trap 請 Motomeko 6, cylindrical body or cylinder is continuous to the hair catcher. By comprising in this way, a cylindrical body or a cylindrical body, and a hair catcher can be handled integrally, and these attachment / detachment work, cleaning work, etc. can be performed easily.

  In the aspect of claim 7, since the upper end of the cylindrical body is connected to the bottom surface of the hair catcher, a swirl flow is formed in the hair catcher, and when water flows down from the center of the vortex to the cylindrical body, Little or no water diffuses from the hair catcher into the annular flow path between the cylindrical body and the inner peripheral surface of the receiving chamber, and almost all of the water flows into the cylindrical body. Therefore, a strong swirl flow is formed in the cylindrical body, and the drainage flow rate increases.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic perspective view of a bathroom provided with a bathroom drainage device according to an embodiment, FIG. 2 is a perspective view of the vicinity of a drain trap, FIG. 3 is a longitudinal sectional view of a drain trap and a drain trough, 4 is a sectional view taken along line IV-IV in FIG.

  As shown in FIG. 1, a drainage tub 4 is integrally formed on the bathtub 3 side of the washing place pan 2 of the bathroom 1. A drain trap 10 is connected to the lower side of the drain 4. An inflow port 11 on the side surface of the drain trap 10 and a drain port 3 a on the bottom surface of the bathtub 3 are connected via a pipe 5.

  In addition, the upper surface of the drain trap 10 is provided with a wash basin drain inlet A (FIG. 2) through which waste water from the washing basin 2 side flows through the drain 4. A drain pipe 6 is connected to an outlet 12 on a side surface substantially opposite to the inlet 11 of the drain trap 10.

  In this embodiment, the inlet 13 on the side peripheral surface of the upper portion of the drain trap 10 is connected to a remedy circulation port receiving tray 7 that receives water leaking from the remedy circulation port provided on the side wall of the bathtub 3. Effluent flows through the pipe 8. However, the pipe 8 and the introduction port 13 may be omitted, and only the bathtub drainage and the washroom drainage may be received.

  As shown in FIG. 3, the drainage basin 4 is formed in a recessed shape integrally with the washing place pan 2, and a drainage pan 9 is covered on the upper surface thereof.

  A flange member 15 is attached to the bottom side of the drainage basin 6 via a packing 16, and the upper end of the drainage trap 10 is attached to the flange member 15 by a screwing method. A hair catcher 17 is inserted into the drain trap 10 through the flange member 15 so as to be detachable from above. The hair catcher 17 has a basket shape with an open upper surface.

  In this embodiment, the hair catcher 17 has a substantially inverted truncated cone shape that decreases in diameter toward the lower side. The hair catcher 17 is supported by the flange member 15 so that the lower end of the hair catcher 17 is located slightly above the sealing surface W in the drain trap 10 (for example, about 10 mm or less). Note that the hair catcher 17 is locked to the flange member 15 by a locking portion (not shown) so that it does not float even if it is pushed upward by the swirling flow formed in the drain trap 10. Reference numeral 17a denotes a knob for picking with a finger or the like when the hair catcher 17 is attached or detached.

  A portion of the lower portion of the drainage trap 10 opposite to the bathtub drainage inlet 11 is a bulging portion 20 bulging sideways. The bulging portion 20 and the lower region of the hair catcher 17 are partitioned by a vertical plate-shaped shielding member 21 curved in an arc shape. Thereby, the part surrounding the hair catcher 17 and the lower part thereof form a substantially cylindrical receiving chamber 22. The lower end of the shielding member 21 is spaced slightly upward (for example, 5 to 30 mm) from the bottom surface of the drain trap 10, and an opening 23 is formed below the shielding member 21. Water in the receiving chamber 22 can flow out to the bulging portion 20 through the opening 23.

  In this embodiment, the shielding member 21 has a configuration in which a plate-like body that is separate from the main body portion of the drain trap 10 is attached. However, the shield member 21 is integrated with the drain trap 10 and the drain trap 10. You may shape | mold so that it may be suspended from the ceiling side.

  The inlet 11 is formed in a vertically long shape extending in the vertical direction from the bottom surface of the receiving chamber 22 to a position higher than the lower end of the hair catcher 17. The bathtub drainage inlet 11 is directed in the tangential direction of the inner peripheral surface of the receiving chamber 22.

  The bathtub drainage inlet 11 protrudes to the outside of the drain trap 10, and the pipe 5 is connected to the protruding portion.

  A cylindrical body 24 is installed in the receiving chamber 22 with the cylinder axis direction being the vertical direction. An annular water channel 25 is formed between the outer peripheral surface of the cylindrical body 24 and the inner peripheral surface of the receiving chamber 22. A plurality of leg portions 24 a project from the lower end of the cylindrical body 24, and each leg portion 24 a is in contact with the bottom surface of the receiving chamber 22. In addition, although illustration is abbreviate | omitted, holding | maintenance parts, such as a protruding item | line with which the lower end of this leg part 24a fits, are provided in the bottom face of the receiving chamber 22. FIG. Thereby, the cylindrical body 24 is installed in the receiving chamber 22 so as to be detachable so as not to be displaced in a position substantially coaxial with the receiving chamber 22. A gap is provided between the lower end of the cylindrical body 24 and the bottom surface of the receiving chamber 22 by the height of the leg portion 24a.

  The outflow port 12 is provided on the leading end side of the bulging portion 20 of the drain trap 10 in the bulging direction. A sealing wall 27 is erected from the middle of the shielding member 21 and the outlet 12 in the bottom surface in the bulging portion 20, and the upper end of the sealing wall 27 is a sealing surface W.

  Next, the operation of the bathroom drainage apparatus configured as described above will be described.

  When the drain plug of the drain port 3a of the bathtub 3 filled with water is pulled out, a part of the bathtub water in the bathtub 3 flows into the receiving chamber 22 of the drain trap 10 from the pipe 5 and the inflow port 11, and in the annular channel 25 To form a swirling flow. The water level in the receiving chamber 22 gradually rises, and the hair catcher 17 or further the drainage basin 4 is in a state of being submerged in the swirling flow. As a result, dust and hair adhering to the inner surface of the drainage basin 4 and the hair catcher 17 are scraped off, and the dust and hair are collected at the center of the vortex and fall downward from the center of the vortex. Good collection at the bottom center of the bottom.

  A part of the water swirling in the receiving chamber 22 flows into the bulging portion 20 through the opening 23 below the shielding member 21 with the assistance of centrifugal force. Further, a part of the water swirling in the receiving chamber 22 gathers at the center of the vortex, reaches the bottom of the receiving chamber 22 through the inside of the cylindrical body 24, and flows out to the bulging portion 20. The water that has flowed into the bulging portion 20 gets over the sealing wall 27 and flows out to the drain pipe 6.

  In this embodiment, the water flowing into the receiving chamber 22 swirls in the annular water channel 25 in this manner, so that the swirling flow velocity along the inner peripheral surface of the receiving chamber 22 is larger than when the cylindrical body 24 is not provided. At the same time, the water level quickly rises along the inner peripheral surface of the receiving chamber 22. Therefore, even when the drainage flow rate from the bathtub 3 is small, the cleaning effect on the inner surfaces of the hair catcher 17 and the drainage tub 4 is good. Furthermore, in this embodiment, the water in which the vortex is formed passes through the vicinity of the axial center of the hair catcher 17 and the cylindrical body 24, whereby the dust in the hair catcher 17 is efficiently collected near the center of the hair catcher 17.

  When all the water flows out of the bathtub 3, the swirling flow stops and the sealed water at the upper end level of the sealed water wall 27 remains in the drain trap 10. Thereby, both the drain pipe 6 side and the washing place 2 and the bathtub 3 side are isolated by the sealed water, and the odor of the drain pipe 6 is prevented from flowing back to the washing place 2 and the bathtub 3.

[Embodiment in which cylindrical body is installed in receiving chamber 22]
FIGS. 5 and 6 show a drain trap 10A according to an embodiment in which a cylindrical body 28 is installed in the receiving chamber 22 instead of the cylindrical body 24. FIG. 5 shows the same part as FIG. FIG. 6 is a longitudinal sectional view, and FIG. 6 is a sectional view taken along line VI-VI in FIG.

  The cylindrical body 28 is disposed coaxially with the receiving chamber 22 at the center of the lower portion in the receiving chamber 22 with the cylindrical axis direction being the vertical direction. The cylindrical body 28 is detachably installed so as not to be displaced by engaging with an engaging portion (not shown) provided at the bottom of the receiving chamber 22.

  An annular water channel 25 is formed between the outer peripheral surface of the cylindrical body 28 and the inner peripheral surface of the receiving chamber 22.

  The upper end surface of the cylindrical body 28 is lower than the sealing surface W.

  Other configurations of the drain trap 10A are the same as those of the drain trap 10 of FIGS. 1 to 3, and the same reference numerals indicate the same parts.

  Also in this drain trap 10A, when the drain plug of the drain port 3a of the bathtub 3 filled with water is pulled out, a part of the bath water in the bathtub 3 enters the receiving chamber 22 of the drain trap 10A from the pipe 5 and the inlet 11. It flows in and forms a swirling flow in the annular water channel 25. The water level in the receiving chamber 22 gradually rises, and the hair catcher 17 or further the drainage basin 4 is in a state of being submerged in the swirling flow. As a result, dust and hair adhering to the inner surface of the drainage basin 4 and the hair catcher are scraped off, and the dust and hair are collected at the center of the vortex and fall downward from the center of the vortex. It is well collected at the center of the bottom.

  Part of the water swirling in the receiving chamber 22 flows into the bulging portion 20 through the opening 23 on the lower side of the shielding member 21 with the assistance of centrifugal force, and then gets over the sealing wall 27. , Flows out into the drain pipe 6.

  In this way, the water flowing into the receiving chamber 22 swirls through the annular water channel 25, so that the swirling flow velocity along the inner peripheral surface of the receiving chamber 22 is increased and the receiving chamber 22 is compared with the case where the cylindrical body 28 is not provided. The water level quickly rises along the inner peripheral surface of the water. Therefore, even when the drainage flow rate from the bathtub 3 is small, the cleaning effect on the inner surfaces of the hair catcher 17 and the drainage tub 4 is good.

[Embodiment in which a bowl-shaped cylinder is installed in the receiving room]
FIG. 7 is a longitudinal sectional view of a drain trap 30 in which a bowl-shaped cylinder is installed in the receiving chamber, and FIG. 8 is a perspective view of the drain trap.

  Although illustration is omitted, in the bathroom 1 provided with the drain trap 30, the drainage tub 4 is integrally formed on the bathtub 3 side of the washing place pan 2. A drain trap 30 is connected to the drain 4 from below.

  As shown in FIG. 8, the inlet 31 on the side surface of the drain trap 30 and the drain port 3 a (not shown) on the bottom surface of the bathtub 3 are connected via a pipe 5.

  In addition, the upper surface of the drain trap 30 is provided with a washing basin drainage inlet through which drainage from the washing basin 2 side flows through the drainage basin 4. A drain pipe 6 is connected to an outlet 32 on the side opposite to the inlet 31 of the drain trap 30.

  A flange member 15 is attached to the bottom side of the drainage basin via a packing (not shown), and an upper end of the drainage trap 30 is attached to the flange member 15 by a screwing method. A hair catcher 17 is inserted into the drain trap 30 through the flange member 15 so as to be detachable from above.

  Also in this embodiment, the hair catcher 17 is supported by the flange member 15 so that the lower end thereof is positioned slightly above the sealing surface in the drain trap 30. Note that the hair catcher 17 is locked to the flange member 15 by a locking portion (not shown) so that it does not float even if it is pushed upward by the swirling flow formed in the drain trap 10.

  Next, the configuration of the drain trap 30 will be described in detail.

  The drain trap 30 includes a cylindrical upper housing 33 whose vertical direction is the cylinder axis direction, and the inside of the upper housing 33 is a receiving chamber 34.

  A disc-shaped bottom plate 35 is provided at the bottom of the upper housing 33, and an opening 36 is provided at the center of the bottom plate 35. A cylindrical trap cylinder 37 is erected from the upper edge of the opening 36. The upper end level of the trap cylinder 37 is the sealing water level.

  A cylindrical body 38 is installed so as to cover the trap cylinder 37 from above. There is a predetermined interval between the outer peripheral surface of the cylindrical body 38 and the inner peripheral surface of the upper housing 33, and an annular water channel 39 is formed between the two.

  The cylindrical body 38 is a lidless and bottomless bowl shape with the lower part opened and the upper part sealed with a canopy part 38a. A predetermined water passage is provided between the canopy 38 a and the upper end of the trap cylinder 37. A predetermined water flow interval is also provided between the inner peripheral surface of the cylindrical body 38 and the outer peripheral surface of the trap cylinder 37.

  A leg (not shown) is erected from the lower end of the cylindrical body 38, and the leg is in contact with the bottom plate 34. Thereby, a predetermined space is provided between the lower end of the cylindrical body 38 and the bottom plate 34. Although illustration is omitted, the bottom plate 35 is provided with a protruding portion such as a protrusion for preventing a lateral displacement of the cylindrical body 38.

  A lower housing 40 is integrally provided below the upper housing 33, and the inside of the lower housing 40 is an outflow chamber 41. The outflow chamber 41 communicates with the inside of the receiving chamber 34 through the opening 36.

  The lower housing 40 extends laterally from the lower side of the upper housing 33, and the distal end side in the extending direction is opened to serve as the outflow port 32.

  When the drain plug of the drain port 3 a of the bathtub 3 filled with water is pulled out, a part of the bathtub water in the bathtub 3 flows into the receiving chamber 34 of the drain trap 30 from the pipe 5 and the inlet 31, and in the annular channel 39. To form a swirling flow. The water level in the receiving chamber 34 gradually rises, and the hair catcher 17 or further the drainage basin 4 is in a state of being submerged in the swirling flow. As a result, dust and hair adhering to the inner surface of the drainage basin 4 and the hair catcher are scraped off, and the dust and hair are collected at the center of the vortex and fall downward from the center of the vortex. It is well collected at the center of the bottom.

  The water swirling in the annular water channel 39 goes around the lower end of the cylindrical body 38, rises between the cylindrical body 38 and the trap cylinder 37, goes around the upper end of the trap cylinder 37, and opens the opening 36 from inside the trap cylinder 37. It passes through the outflow chamber 41 and flows out from the outflow port 32 to the drain pipe 6.

  Thus, the water that has flowed into the receiving chamber 34 swirls the annular water channel 39, thereby increasing the swirling flow velocity along the inner peripheral surface of the receiving chamber 34, and the water level quickly along the inner peripheral surface of the receiving chamber 34. To rise. Therefore, even when the drainage flow rate from the bathtub 3 is small, the cleaning effect on the inner surfaces of the hair catcher 17 and the drainage tub 4 is good.

  When all the water has flowed out of the bathtub, the swirling flow stops, and the upper level seal water of the trap cylinder 37 remains in the drain trap 30. Thereby, both the drain pipe 6 side and the washing place 2 and the bathtub 3 side are isolated by the sealed water, and the odor of the drain pipe 6 is prevented from flowing back to the washing place 2 and the bathtub 3.

  FIG. 9 is a longitudinal sectional perspective view of a drain trap according to a different embodiment, FIG. 10 is a view showing a state in which the cylindrical body 38 and the hair catcher 17 are removed in FIG. 9, and FIG. FIG.

  In this embodiment, a guide plate 33 a is provided along the inner peripheral surface of the upper housing 33. In the present embodiment, the guide plate 33a extends from the vicinity of the inflow port 31 so that the inner peripheral surface of the upper housing 33 faces the downstream side in the swivel direction and about half the inner peripheral surface of the upper housing 33. . The level of the guide plate 33a on the front end side in the turning direction (inlet 31 side) is below the vicinity of the lower edge of the inlet 31 and above the level of the lower end of the cylindrical body 38. The guide plate 33a is provided so as to have an upward slope toward the downstream side in the turning direction. The level of the guide plate 33a on the end side in the turning direction is near the upper edge of the inlet 31. In order to prevent the guide plate 33a from disturbing the swirling flow, the difference in level between the front end side and the end side of the swiveling direction of the guide plate 33a is 0.5 to 3 times, especially 1 to 2 times the diameter of the inlet 31. It is preferable to do so.

  The width of the guide plate 33a (the width of the upper housing 33 in the radial direction) is preferably 70% or less, particularly about 30 to 70% of the distance between the inner peripheral surface of the upper housing 33 and the outer peripheral surface of the cylindrical body 38.

  The other structure of this drain trap 30A is the same as that of the drain trap of FIG. 7 and FIG. 8, and the same code | symbol has shown the identical part.

  In the drain trap 30A provided with the guide plate 33a as described above, the water flowing in the tangential direction from the inflow port 31 into the upper housing 33 spreads mainly upward along the inner peripheral surface of the upper housing 33. And then flow. That is, the water flowing into the upper housing 33 from the inflow port 31 is prevented or suppressed from spreading downward along the inner peripheral surface of the upper housing 33, and the inflowing water from the inflow port 31 is short-circuited in the cylindrical body 38. It is prevented from passing through the lower end. Thereby, the turning flow velocity in the upper housing 33 increases.

  In this embodiment, the guide plate 33a extends so as to make a half turn around the inner peripheral surface of the upper housing 33. However, the circumferential length of the guide plate 33a is equal to the circumferential length of the upper housing 33. What is necessary is just about 20 to 100%. In this case, it is preferable that the upward gradient in the turning direction of the guide plate 33a is approximately the same as that in the case of FIGS.

[Embodiment in which cylindrical body is provided in hair catcher]
In each of the embodiments shown in FIGS. 1 to 4 and FIGS. 5 and 6, the cylindrical body 24 and the columnar body 28 are respectively placed on the bottom surface of the receiving chamber 22. The body or cylinder may be connected to a hair catcher.

  FIG. 12 is a longitudinal sectional view of the drain trap 10 ′ configured as described above.

  The drain trap 10 ′ is suspended from the hair catcher 17 instead of placing the cylindrical body 24 on the bottom surface of the receiving chamber 22 in the embodiment shown in FIGS. It is the structure connected to.

  That is, in this embodiment, the cylindrical body 24 is installed on the lower side of the hair catcher 17 with the cylindrical axis direction as the vertical direction, and the upper end thereof is connected to the bottom surface of the hair catcher 17. The upper end edge of the cylindrical body 24 is continuous with the bottom surface of the hair catcher 17 over the entire circumference. The inside of the hair catcher 17 and the inside of the cylindrical body 24 communicate with each other through a through hole (reference numeral omitted) on the bottom surface of the hair catcher 17. The lower end side of the cylindrical body 24 is open. The lower end of the cylindrical body 24 is positioned below the sealing surface W in the drain trap 10 ′ in the receiving chamber 22 and is slightly separated (5 to 50 mm) from the bottom surface of the receiving chamber 22. .

  In this embodiment, a leg portion 24 a for supporting the cylindrical body 24 on the bottom surface of the receiving chamber 22 is not provided at the lower end of the cylindrical body 24.

  In this embodiment, the cylindrical body 24 is integrally formed with the hair catcher 17. However, the cylindrical body 24 and the hair catcher 17 are separately molded and these are bonded by a bonding means such as adhesion or welding. The structure which couple | bonded. The cylindrical body 24 may be detachably connected to the hair catcher 17.

  The other configuration of the drain trap 10 'is the same as that of the drain trap 10 of FIGS. 1 to 4. In FIG. 12, the same reference numerals as those of FIGS. 1 to 4 denote the same parts.

  The operation of the drain trap 10 'is the same as that of the drain trap 10 shown in FIGS. This drain trap 10 'also has the same effects as the drain trap 10 of FIGS.

  In this drain trap 10 ′, since the cylindrical body 24 is connected to the hair catcher 17, when the hair catcher 17 is removed from the upper part of the receiving chamber 22, the cylindrical body 24 is also removed from the receiving chamber 22 together with this. Pulled out. When the hair catcher 17 is mounted on the upper portion of the receiving chamber 22, the cylindrical body 24 is also disposed in the receiving chamber 22 together with the hair catcher 17. That is, in the drain trap 10 ', the hair catcher 17 and the cylindrical body 24 can be handled as one body, and the attaching / detaching operation and the cleaning operation can be easily performed.

  Further, in this drain trap 10 ′, since the upper end of the cylindrical body 24 is connected to the bottom surface of the hair catcher 17, a swirling flow is formed in the hair catcher 17, and water is supplied from the center of the vortex to the cylindrical body 24. When the water flows down, the water hardly or completely diffuses from the hair catcher 17 into the annular flow path 25 between the cylindrical body 24 and the inner peripheral surface of the receiving chamber 22, and almost the entire amount flows into the cylindrical body 24. Will come to do. Therefore, a strong swirl flow is formed in the cylindrical body 24, and the drainage flow rate increases.

  FIG. 13 is a longitudinal sectional perspective view of a drain trap 10B according to another embodiment, FIG. 14 is a perspective view of a hair catcher 17A of the drain trap 10B, and FIG. 15 is taken along line XV-XV in FIG. It is a cross-sectional perspective view which follows. In the following description, the vertical direction coincides with the vertical direction in a state where the hair catcher 17A is mounted on the drain trap 10B.

  Also in this embodiment, the hair catcher 17A has a cage shape in which an upper surface is open and a large number of through holes (not shown) are provided on the side peripheral surface and the bottom surface. Also in this embodiment, the hair catcher 17A has an outer shape of a substantially inverted truncated cone shape that is reduced in diameter toward the lower end side.

  Also in this embodiment, the cylindrical body 50 is erected downward from the bottom surface of the hair catcher 17A. The cylindrical body 50 is arranged substantially coaxially with the hair catcher 17A with the cylinder axis direction as the vertical direction. As shown in FIGS. 13 and 15, the cylindrical body 50 has an inner peripheral diameter substantially equal to the diameter of the bottom surface of the hair catcher 17A, and the upper edge of the cylindrical body 50 extends outside the bottom surface of the hair catcher 17A over the entire periphery. It is connected to the periphery. The inside of the hair catcher 17A communicates with the inside of the cylindrical body 50 through the through hole on the bottom surface. The cylindrical body 50 is opened at the lower end side.

  Also in this embodiment, the hair catcher 17A is located in the vicinity of the axial center in the receiving chamber 22, and its bottom surface is located slightly above (for example, about 10 mm or less) the sealing surface W in the drain trap 10B. Are supported by the flange member 15. In addition, the cylindrical body 50 is thereby arranged coaxially with the receiving chamber 22 in the receiving chamber 22, and an annular flow path 25 is formed between the outer peripheral surface of the cylindrical body 50 and the inner peripheral surface of the receiving chamber 22. Has been. The lower end of the cylindrical body 50 is located below the sealing surface W in the drain trap 10B in the receiving chamber 22 and is spaced apart from the bottom surface of the receiving chamber 22 by a predetermined distance (for example, 5 to 50 mm). Yes.

  In this embodiment as well, the cylindrical body 50 is integrally formed with the hair catcher 17A. However, the cylindrical body 50 and the hair catcher 17A are separately molded, and these are bonded by a bonding means such as adhesion or welding. The structure which couple | bonded. The cylindrical body 50 may be detachably connected to the hair catcher 17A.

  In this embodiment, the drain trap 10B communicates between the inside of the bulging portion 20 and the outside of the drain trap 10B in order to prevent the sealing water from being cut off when the inside of the bulging portion 20 becomes negative pressure. A communication member 60 is provided.

  Specifically, in this embodiment, a pipe connection port 21a penetrating the shielding member 21 is provided in the middle of the shielding member 21 that divides the drain trap 10B into the receiving chamber 22 and the bulging portion 20. It has been. The communication member 60 is disposed in the bulging portion 20, one end side is disposed in the receiving chamber 22 and the first piping 61 connected to the bulging portion 20 a side of the pipe connection port 21 a, and one end side is disposed in the pipe connection port. It has the 2nd piping 62 connected to this receiving chamber 22 side of 21a, and the diffuser member 63 provided in the other end side of this 1st piping 61. As shown in FIG.

  As shown in FIG. 13, the first pipe 61 and the second pipe 62 are each formed of an L-shaped pipe. That is, the first pipe 61 is bent downward from the middle in the longitudinal direction, and the lower end side thereof is positioned lower than the sealing surface W in the bulging portion 20. The lower end side of the first pipe 61 is a bowl-shaped enormous part 61a that opens downward, and an air diffuser 63 is attached to cover the lower surface of the enormous part 61a. The diffuser member 63 has a large number of small-hole diffuser ports 63a. The air diffuser 63 is spaced slightly upward (for example, 2 to 30 mm) from the bottom surface in the bulging portion 20.

  The second pipe 62 is bent upward from the vicinity of the one end connected to the pipe connection port 21 a and extends upward along the inner peripheral surface of the receiving chamber 22. As shown in FIG. 13, the upper end of the second pipe 62 is positioned higher than the upper surface of the flange member 15. That is, the upper end side of the second pipe 62 extends into the drainage basin 4 (not shown) of the washing place.

  In this embodiment, the hair catcher 17A is provided with a cylindrical portion 17b through which the second pipe 62 is inserted. The cylindrical portion 17b is formed along the inner peripheral surface of the hair catcher 17A with the cylindrical axis direction as a substantially vertical direction. Since the outer peripheral surface of the hair catcher 17A is a tapered surface that is reduced in diameter toward the lower end side, the cylindrical portion 17b has a shape such that the outer peripheral side of the hair catcher 17A is cut obliquely along this tapered surface. ing. Therefore, this cylinder part 17b is largely opened from the lower end to the vicinity of the upper end of the side surface on the outer peripheral side of the hair catcher 17A.

  In this embodiment, the upper end side of the cylindrical portion 17b protrudes upward from the upper surface of the hair catcher 17A. As shown in FIG. 13, the protruding height of the cylindrical portion 17b from the upper surface of the hair catcher 17A is slightly higher (for example, 5 to 50 mm) than the protruding height of the second pipe 62 from the upper surface of the flange member 15. ing.

  The upper end surface of the cylindrical portion 17b is covered with a cover portion 17c (FIGS. 14 and 15). A tongue-shaped knob 17d for a cleaning operator to grip with a finger or the like is formed so as to extend the cover lid 17c to the opposite side of the center of the hair catcher 17A. Further, a ring portion 17e is formed on the upper surface of the cover lid portion 17c so that a cleaning operator can hook a finger or the like.

  In this embodiment, a vent hole 17f that communicates the inside and outside of the cylindrical portion 17b is formed so as to cut out the side surface of the cylindrical portion 17b along the lower surface of the knob portion 17d.

  When mounting the hair catcher 17 </ b> A, the hair catcher 17 </ b> A is fitted inside the flange member 15 while the second pipe 62 is inserted into the cylindrical portion 17 b.

  The inside of the bulging portion 20 and the outside of the drain trap 10B through the vent hole 17f and the cylindrical portion 17b of the hair catcher 17A and the first pipe 61, the pipe connection port 21a, the second pipe 62, and the air diffusion port 63a of the communication member 60. (In the drainage basin 4) communicates.

  In this embodiment, as shown in FIG. 13, an inflow port 70 is provided on the side surface of the receiving chamber 22 for allowing waste water from other than the bathtub 3 (not shown) to flow into the receiving chamber 22. A cap with a check valve function that allows water to flow from the inlet 70 into the receiving chamber 22 but prevents water from flowing into the inlet 70 from the receiving chamber 22 ( (Not shown) is attached. The inflow port 70 may be omitted.

  The other structure of this drain trap 10B is the same as that of the drain trap 10 of FIGS. 1-4, and in FIG. 13-15, the same code | symbol as FIG. 1-4 shows the same part.

  Even in this drain trap 10B, when the drain plug of the drain port 3a of the bathtub 3 filled with water is pulled out, a part of the bath water in the bathtub 3 is received from the pipe 5 and the inlet 11 into the receiving chamber 22 of the drain trap 10B. Into the inside of the annular water channel 25 to form a swirling flow. The water level in the receiving chamber 22 gradually rises, and the hair catcher 17A or further the drainage basin 4 is in a state of being submerged in the swirling flow. As a result, the dust and hair adhering to the inner surface of the drainage basin 4 and the hair catcher 17A are scraped off, and the dust and hair are collected at the center of the vortex and fall downward from the center of the vortex. Good collection at the bottom center of the bottom.

  A part of the water swirling in the receiving chamber 22 flows into the bulging portion 20 through the opening 23 below the shielding member 21 with the assistance of centrifugal force. Further, a part of the water swirling in the receiving chamber 22 gathers at the center of the vortex, passes through the inside of the cylindrical body 50, reaches the bottom of the receiving chamber 22, and flows out to the bulging portion 20. The water that has flowed into the bulging portion 20 gets over the sealing wall 27 and flows out to the drain pipe 6.

  In this embodiment, the water flowing into the receiving chamber 22 swirls in the annular water passage 25 in this way, and therefore the swirling flow velocity along the inner peripheral surface of the receiving chamber 22 is larger than when the cylindrical body 50 is not provided. At the same time, the water level quickly rises along the inner peripheral surface of the receiving chamber 22. Therefore, even when the drainage flow rate from the bathtub 3 is small, the cleaning effect of the inner surfaces of the hair catcher 17A and the drainage basin 4 is good. Further, in this embodiment, the water forming the vortex passes through the vicinity of the axial center of the hair catcher 17A and the cylindrical body 50, so that the dust in the hair catcher 17A is efficiently collected near the center of the hair catcher 17A.

  When all the water flows out of the bathtub 3, the swirling flow stops and the sealed water at the upper end level of the sealed wall 27 remains in the drain trap 10B. Thereby, both the drain pipe 6 side and the washing place 2 and the bathtub 3 side are isolated by the sealed water, and the odor of the drain pipe 6 is prevented from flowing back to the washing place 2 and the bathtub 3.

  Even in this drain trap 10B, since the cylindrical body 50 is connected to the hair catcher 17A, the hair catcher 17A and the cylindrical body 50 are handled as a single unit, like the drain trap 10 'shown in FIG. These attachment / detachment operations and cleaning operations can be easily performed.

  Even in this drain trap 10B, the upper end of the cylindrical body 50 is connected to the bottom surface of the hair catcher 17A, as in the drain trap 10 ′ of FIG. 12, and a swirling flow is formed in the hair catcher 17A. When water flows from the center of the vortex to the cylindrical body 50, the water hardly or not diffuses into the annular flow path 25 between the cylindrical body 50 and the inner peripheral surface of the receiving chamber 22 from the hair catcher 17A. Almost the entire amount flows into the cylindrical body 50. Therefore, a strong swirl flow is formed in the cylindrical body 50, and the drainage flow rate increases.

  In this embodiment, since the communication member 60 that communicates the inside of the bulging portion 20 and the outside of the drain trap 10B is provided, even if a negative pressure is generated in the bulging portion 20, the sealed water is prevented from running out. Is done.

  FIG. 16 is a cross-sectional perspective view of a drain trap 10C according to still another embodiment.

  Similarly to the drain trap 10B of FIG. 13 described above, the drain trap 10C of this embodiment is also provided with a hair catcher 17A 'with the upper end of the cylindrical body 50 connected to the bottom surface.

  In this embodiment, of the hair catcher 17A ′, the cylindrical portion 17b into which the second pipe 62 of the communication member 60 is inserted does not protrude from the upper surface of the hair catcher 17A ′, and its upper end surface is It is flush with the upper surface of the hair catcher 17A ′. That is, in this embodiment, the knob portion 17d, the ring portion 17e, and the like are not provided on the upper end side of the cylindrical portion 17b. The upper end side of the second pipe 62 inserted through the tube portion 17 b penetrates the tube portion 17 b and protrudes upward from the upper surface of the hair catcher 17 A ′, and is exposed in the drainage tub 4.

  In this embodiment, the cylindrical body 50 is formed separately from the hair catcher 17A 'and is coupled to the hair catcher 17A' by a coupling means such as adhesion or welding. In this embodiment, the cylindrical body 50 and the hair catcher 17A 'may be integrally formed. Further, the cylindrical body 50 may be detachably connected to the hair catcher 17A ′.

  In this drain trap 10C, a hair catcher 17A similar to the drain trap 10B described above may be used.

  In this embodiment, the drain trap 10C, the bathtub drain pipe 5, and the connecting member 80 that connects the pipe 5 to the drain port 3a of the bathtub 3 (not shown) are unitized.

  In addition, although illustration was abbreviate | omitted in FIG. 1, the floor of a bathroom is comprised by the bathtub pan and the washing-room pan 2, and the bathtub 3 is installed on this bathtub pan. The bathtub pan is provided with a bathtub pan drain outlet having a diameter larger than that of the drain outlet 3 a of the bathtub 3. The drainage port 3a of the bathtub 3 is arranged so as to be exposed inside the bathtub pan drainage port.

  The connecting member 80 has a dish shape having a bottom surface portion 81 that overlaps the bathtub pan drainage port from the bottom of the bathtub pan, and a peripheral wall portion 82 that stands upward from the outer peripheral edge of the bottom surface portion 81. ing. On the outer periphery of the upper edge of the peripheral wall portion 82, a flange 83 is provided so as to overlap the lower surface of the bathtub pan.

  A cylindrical bathtub connecting portion 84 is erected from the bottom surface portion 81 of the connecting member 80 toward the drain port 3 a of the bathtub 3. A flange (reference numeral omitted) is provided around the upper edge of the bathtub connecting portion 84 so as to overlap the lower surface of the bathtub 3.

  A pipe connection housing 85 is provided integrally with the connecting member 80 below the bottom surface portion 81, and an inner hole of the bathtub connecting portion 84 penetrates the bottom surface portion 81 and is inside the pipe connection housing 85. Communicating with The pipe connection housing 85 extends toward the drain trap 10C side along the lower surface of the bottom surface portion 81, and one end side of the bathtub drain pipe 5 is connected to the leading end side in the extending direction. Note that the other end of the bathtub drain pipe 5 is connected to the bathtub drain inlet 11 of the drain trap 10C as in the above-described embodiments.

  In the bottom surface portion 81, a bathtub pan drainage outlet 86 is provided between the bathtub connecting portion 84 and the peripheral wall portion 82. In this embodiment, a bathtub pan drainage pipe 90 is disposed adjacent to the bathtub drainage pipe 5, and one end side of the bathtub pan drainage pipe 90 is below the bottom surface portion 81 via the joint pipe 87. To the bathtub pan drainage outlet 86. The other end side of the bathtub pan drainage pipe 90 is connected to a bathtub pan drainage inlet 91 provided on the side surface of the receiving chamber 22 of the drain trap 10C.

  The bathtub drainage pipe 5 and the bathtub pan drainage pipe 90 are each bent in a crank shape in the middle, and are disposed such that the drain trap 10C side is positioned higher than the connecting member 80 side.

  An annular flange member (not shown) similar to the flange member 15 attached to the drainage basin 4 is attached to the bathtub pan drainage port and the bathtub drainage port 3a via a packing (not shown), respectively. Yes. The flange 83 of the connecting member 80 is brought into contact with the peripheral portion of the bathtub pan drainage port from the lower side of the bathtub pan via a packing (not shown), and the flange member of the bathtub pan drainage port is screwed to the inner peripheral wall portion 82. By being inserted, the connecting member 80 is connected to the peripheral edge of the bathtub pan drainage port. Moreover, the flange of the bathtub connection part 84 is contact | abutted via the packing (not shown) from the lower side of the bathtub 3 to the peripheral part of the bathtub drainage port 3a from the lower side of the bathtub 3, and this bathtub connection part 84 The bathtub connecting portion 84 is connected to the peripheral edge portion of the bathtub drainage port 34 by screwing the flange member of the bathtub drainage port 3 a inside.

  In this embodiment, a door 92 for opening and closing the bathtub pan drainage inlet 91 is installed in the receiving chamber 22. The door 92 is curved along the inner peripheral surface of the receiving chamber 22. Of the door 92, the upstream edge of the swirl flow formed in the receiving chamber 22 is connected to the inner peripheral surface of the receiving chamber 22 via a hinge (not shown). The door 92 can be rotated in the contact / separation direction with respect to the inner peripheral surface of the receiving chamber 22 with the hinge as a rotation center. This hinge is provided with a spring (not shown) that urges the door 92 to approach the inner peripheral surface of the receiving chamber 22.

  When the bathtub pan drainage flows into the bathtub pan drainage pipe 90 in a state in which no swirling flow is formed in the receiving chamber 22, the door 92 is pushed open by the water pressure of the bathtub pan drainage, and the bathtub pan drainage flow. The inlet 91 is opened. When a swirling flow is formed in the receiving chamber 22, the water flow pressure is pressed against the inner peripheral surface of the receiving chamber 22 to close the bathtub pan drainage inlet 91, and the swirling flow in the receiving chamber 22 It is prevented from flowing into the pan drainage inlet 91.

  In this embodiment, a disc-shaped bottom plate 93 is provided on the bottom surface of the receiving chamber 22, and an opening 93 a is provided in the center of the bottom plate 93. The lower side of the bottom plate 93 is an outflow chamber 94, and the water flowing out from the receiving chamber 22 through the opening 93 a into the outflow chamber 94 flows into the bulging portion 20 through the outflow chamber 94.

  In this embodiment, the bottom surface of the outlet 12 of the drain trap 10C is inclined so that its base side (that is, the bulging portion 20 side) is higher, and the outlet 12 and the bulging portion 20 The vicinity of the boundary portion is the uppermost portion 27 ′. In this embodiment, sealed water is stored in the drain trap 10C up to the level of the uppermost portion 27 '.

  The other configuration of the drain trap 10C is the same as that of the drain trap 10B shown in FIGS. 13 to 15. In FIG. 16, the same reference numerals as those in FIGS. 13 to 15 denote the same parts.

  The drain trap 10C is also operated in the thirteenth to fifteenth aspects except that the water flowing out from the receiving chamber 22 through the bottom opening 93a into the outflow chamber 94 flows into the bulging portion 20 through the outflow chamber 94. This is the same as the drain trap 10B in the figure.

  Even in this drain trap 10C, since the cylindrical body 50 is connected to the hair catcher 17A ′, the hair catcher 17A ′ and the cylindrical body 50 can be handled integrally as in the drain traps 10 ′ and 10B described above. These attachment / detachment operations and cleaning operations can be easily performed.

  Further, even in the drain trap 10C, as in the drain traps 10 'and 10B, the upper end of the cylindrical body 50 is connected to the bottom surface of the hair catcher 17A', so that a swirl flow is formed in the hair catcher 17A '. When water flows down from the center of the vortex into the cylindrical body 50, this water is little or not in the annular flow path 25 between the cylindrical body 50 and the inner peripheral surface of the receiving chamber 22 from the hair catcher 17A ′. Almost the entire amount flows into the cylindrical body 50 without being diffused. Therefore, a strong swirl flow is formed in the cylindrical body 50, and the drainage flow rate increases.

  The above-described embodiment is an example of the present invention, and the present invention can take other forms than shown.

  For example, in the drain trap 10 of FIGS. 1 to 4 and the drain trap 10A of FIGS. 5 and 6, the guide plate 33a is installed on the side surface of the receiving chamber 22 (inner peripheral surface of the blocking member 21). May be.

It is a perspective view of a bathroom provided with a drain trap according to an embodiment. It is a perspective view of the drain trap concerning an embodiment. It is sectional drawing of the waste_water | drain trap which concerns on embodiment. It is the IV-IV sectional view taken on the line of FIG. It is sectional drawing of the waste_water | drain trap which concerns on another embodiment. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. It is a longitudinal cross-sectional view of the drain trap which concerns on another embodiment. It is a perspective view of the drain trap of FIG. It is a longitudinal cross-sectional perspective view of the drain trap which concerns on different embodiment. It is a longitudinal cross-sectional perspective view which shows the state which removed the hair catcher and the cylindrical body in the drain trap of FIG. It is the XI-XI sectional view taken on the line of FIG. It is a longitudinal cross-sectional view of the drain trap which concerns on another embodiment. It is a longitudinal cross-sectional perspective view of the drain trap which concerns on another embodiment. It is a perspective view of the hair catcher of the drain trap of FIG. It is sectional drawing which follows the XV-XV line | wire of FIG. It is a longitudinal cross-sectional perspective view of the drain trap which concerns on another embodiment.

Explanation of symbols

3 Bathtub 10, 10 ', 10A, 10B, 10C Drain trap 11 Inlet 12 Outlet 17, 17A Hair catcher 20 Swelling part 21 Shield member 22 Receiving chamber 23 Opening 24 Cylindrical body 24a Leg part 25 Annular water channel 28 Cylindrical body 30 30A Drain trap 31 Inlet 32 Outlet 33a Guide plate 34 Receiving chamber 36 Opening 37 Trap cylinder 38 Cylindrical body 39 Annular water channel 41 Outlet chamber 50 Cylindrical body 60 Communication member

Claims (7)

A drainage trap having a substantially cylindrical receiving chamber in which a washroom drainage inlet is provided at the top and a bathtub drainage inlet is provided on the side peripheral surface,
In the drainage trap for receiving bathtub drainage from the bathtub drainage inlet in a substantially tangential direction to form a swirling flow in the receiving chamber and flowing out from the outlet,
In the receiving chamber, a cylindrical body or a cylindrical body coaxial with the receiving chamber is provided,
An annular water channel is formed between the inner peripheral surface of the receiving chamber and the outer peripheral surface of the cylindrical body or columnar body,
The drainage trap, wherein the annular water channel and the washing ground drainage receiving port communicate with each other above the annular water channel.   2. The drain trap according to claim 1, wherein a cylindrical body having an open upper portion and a lower portion is provided as the cylindrical body in the receiving chamber. In Claim 2, the opening connected to the outflow port is provided in the side peripheral surface of the lower part of the receiving room,
A drainage trap, wherein a gap is provided between a lower end of the cylindrical body and a bottom surface of the receiving chamber. A drainage trap having a substantially cylindrical receiving chamber in which a washroom drainage inlet is provided at the top and a bathtub drainage inlet is provided on the side peripheral surface,
In the drainage trap for receiving bathtub drainage from the bathtub drainage inlet in a substantially tangential direction to form a swirling flow in the receiving chamber and flowing out from the outlet,
A cylindrical body coaxial with the receiving chamber is provided in the receiving chamber,
The cylindrical body is sealed at the top and open at the bottom,
An opening communicating with the outlet is provided at the bottom of the receiving chamber,
A drainage trap, wherein a sealing water forming cylinder is provided upright from the edge of the opening to the inside of the cylinder.   The drainage trap according to any one of claims 1 to 4, wherein a hair catcher is installed in an upper part of the receiving chamber. 6. The drain trap according to claim 5, wherein the cylindrical body or the columnar body is connected to a lower side of the hair catcher. The hair catcher according to claim 6, wherein the hair catcher has an open top surface and has a cage shape having through holes on the bottom surface and the side circumferential surface
As the cylindrical body, an upper end is connected to the bottom surface of the hair catcher, and a cylindrical body having a lower end opened is provided,
The inside of the hair catcher and the cylindrical body communicate with each other through the through hole on the bottom surface of the hair catcher,
The drainage trap, wherein the cylindrical body has a lower end separated from a bottom surface of the receiving chamber.

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