JP5601038B2 - Drain trap - Google Patents

Description

  The present invention is a drainage trap for a bathtub and a washing place, and has a receiving chamber for receiving the washing ground 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, and more particularly to a drain trap that includes a water guide member that introduces part of bathtub drain into a receiving chamber. In particular, the present invention relates to a drain trap suitable for a drain trap configured to cause water to flow out from this water guide member in a substantially tangential direction of the receiving chamber to form a swirling flow in the receiving chamber.

  A drainage 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 (confluence outlet) Japanese Patent Application Laid-Open No. 2009-167590 discloses that a part of bathtub drainage is separated from a bathtub drainage flow path and is discharged in a substantially tangential direction to the upper portion of the receiving chamber by a water guide member to form a swirling flow in the receiving chamber. It is described in the publication.

  As clearly shown in FIGS. 5 to 8 of the publication, only one water guide member is erected on the axial center of the receiving chamber. The bathtub drainage channel is formed below the bottom plate of the receiving chamber, and is continuous without branching from the bathtub drainage receiving part to the junction outlet.

JP 2009-167590 A

  An object of this invention is to provide the waste_water | drain trap which can introduce | transduce a part of bathtub waste_water | drain into a receiving chamber efficiently.

The drain trap according to claim 1 is surrounded by a substantially cylindrical peripheral wall portion with the cylindrical axis direction being substantially vertical, and has a wash-basin drainage inlet at the top and a first outlet at the bottom. The receiving chamber, the peripheral wall portion is received inside, the sealed water chamber into which the effluent water from the first outflow port flows, and the overflow water from the sealed water chamber connected to the sealed water chamber is allowed to flow out. A second outlet for the second outlet, a merging outlet connected to the second outlet, the lower side of the receiving chamber and the sealed water chamber, and a bathtub drainage inlet at one end. In order to introduce a part of the bathtub drainage into the receiving chamber from the bathtub drainage channel through the bathtub drainage inlet through the bathtub drainage channel having a third outlet that is connected to the merge outlet on the end side Water flowing out from the first outlet through the gap between the lower end of the peripheral wall and the bottom surface of the sealing chamber. In the drainage trap tub and washing place entering the chamber, those conductor water member is provided with a plurality, each water guide member characterized by having a conductive water bottle which projects upwardly from the bath tank drainage inlet It is.

The drain trap according to claim 2 is surrounded by a substantially cylindrical peripheral wall portion with the cylinder axis direction being substantially vertical, and has a wash-basin drainage inlet at the upper part and a first outlet at the lower part. Receiving chamber, a downwardly protruding hair catcher that is installed in the receiving chamber and is lower in the center, and a sealed chamber that receives the peripheral wall portion therein and into which the outflow water from the first outlet flows. A second outlet for discharging the overflow water from the sealed water chamber connected to the sealed water chamber, a merging outlet for connecting the second outlet, and a lower side of the receiving chamber and the sealed water chamber A bathtub drainage flow path extending through one end, having a bathtub drainage inlet on one end side, and having a third outlet connecting to the merge outlet on the other end side, from the bathtub drainage flow path A water guide member for introducing a part of the bathtub drainage into the receiving chamber, and the outflow water from the first outlet is In the drainage trap tub and washing place entering the encapsulating water chamber through a gap between the lower end and the bottom surface of the sealing water chamber of the peripheral wall portion, substantially of receiving entry of water conductor water members from the fourth outlet port A swirl flow forming means is provided for flowing in a tangential direction to form a swirl flow in the receiving chamber, and the upper part of the water guide member is branched into a plurality of positions at a position lower than the fourth outlet. It is a feature.

According to a third aspect of the present invention, there is provided a drainage trap according to the first aspect , wherein swirling flow forming means is provided for causing water to flow out from the water guide member in a substantially tangential direction of the receiving chamber to form a swirling flow in the receiving chamber. It is characterized by this.

  According to a fourth aspect of the present invention, there is provided a drain trap according to the first aspect, wherein the two water guiding members are arranged on opposite sides of the axis of the receiving chamber.

  The drain trap according to claim 5 is characterized in that, in claim 2, the upper part of the water guide member is branched into two parts and arranged on opposite sides across the axis of the receiving chamber. .

  The drain trap according to claim 6 is characterized in that, in any one of claims 1 to 5, the water guiding member is provided so as to allow the drainage of the bathtub to flow out to the upper part of the receiving chamber. .

  A drain trap according to a seventh aspect is the drain trap according to the sixth aspect, wherein a shelf-like portion extending in the circumferential direction is formed on the inner peripheral surface of the upper portion of the peripheral wall portion to form a swirling flow at the upper portion of the receiving chamber. It is characterized by that.

  The drain trap according to claim 8 is the drain trap according to claim 7, wherein the upper end portion of the water guide member protrudes upward from the shelf-like portion, and the upper end portion of the water guide member extends along the inner peripheral surface of the peripheral wall portion. The water outlet is provided on the shelf-like portion so as to allow the bathtub drainage to flow out.

  The drain trap according to claim 9 is characterized in that, in claim 8, a slope portion for guiding a swirling flow flowing on the upper side of the shelf-like portion to the upper side of the water guide member is provided on the shelf-like portion. Is.

  In the drain trap of the first invention (invention 1), a plurality of water guiding members are provided. Therefore, at the time of bathtub drainage, a part of bathtub drainage is efficiently introduced into the receiving chamber through each water guide member. Thus, even when the bathtub drainage flows out through the merging outlet, negative pressure is generated in the sealed water chamber, and even when the sealed water in the sealed water chamber is sucked out to the merging outlet, Since the water introduced into the receiving chamber flows into the sealed water chamber, the sealed water is sufficiently supplied to the sealed water chamber, so that the sealed water is prevented from running out in the sealed water chamber.

  In the drainage trap of the second invention (invention 2), the upper portion of the water guiding member is branched into a plurality. Therefore, at the time of bathtub drainage, part of the bathtub drainage is efficiently introduced into the receiving chamber through the water guiding member. As a result, a negative pressure is generated in the sealed water chamber as the bathtub drainage flows out through the merging outlet, and even if the sealed water in the sealed water chamber is sucked out to the merging outlet, it is received from the water guide member. Since the water introduced into the room flows into the sealed water chamber, the sealed water is sufficiently replenished in the sealed water chamber, so that the sealed water is prevented from running out in the sealed water chamber.

  In the aspect of Claim 3, since the water flows out from each water guide member in a substantially tangential direction of the receiving chamber, a swirling flow is generated in the receiving chamber. Therefore, a hair catcher (eye plate) installed in the receiving chamber. Is immersed in the swirling flow, and dust such as hair in the hair catcher is collected at 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 present invention, since a plurality of water guide members are provided, a swirl flow can be formed efficiently and the unevenness of the swirl flow is small.

  By providing the two water guiding members so as to face each other in the diameter direction of the receiving chamber as in the fourth aspect, the flow velocity unevenness of the swirling flow in the receiving chamber becomes small.

  By providing the upper part of the diversion member branched into two as in claim 5 so as to face the receiving chamber in the diameter direction, the flow velocity unevenness of the swirling flow in the receiving chamber becomes small.

  As described in claims 6 and 7, when the swirl flow is formed in the upper portion of the receiving chamber, the eye plate can be sufficiently immersed in the swirl flow even when the amount of water in the swirl flow is small.

  When the upper end portion of the water guide member protrudes upward from the shelf-like portion as in claim 8, the swirling flow can be formed by discharging the bathtub drainage directly from the discharge port onto the shelf-like portion. .

  In this case, when the slope portion is provided as in the ninth aspect, the swirling flow is guided to the upper side of the water guide member along the slope portion, so that the water flow (flow velocity) of the swirling flow is maintained. Further, since the swirling flow is lifted along the slope portion and guided to the upper side of the peripheral wall, the swirling flow is less likely to drop to the lower portion of the receiving chamber, and the swirling flow can be immersed in the upper portion of the eye plate.

It is a perspective view of the drain trap concerning an embodiment. It is the perspective view which looked at the receiving chamber from the upper direction of the drain trap of FIG. It is a perspective view which shows the state which removed the sealing chamber ceiling part of the drain trap of FIG. It is a perspective view which shows the state which removed the surrounding wall part from FIG. It is a perspective view which shows the state which removed the water guide cylinder and the cover plate from FIG. It is a perspective view which shows the state which removed the flow path cover from FIG. It is a top view of the drain trap in the state of FIG. It is sectional drawing which follows the VIII-VIII line of FIG. It is sectional drawing which follows the IX-IX line of FIG. It is a schematic perspective view of the bathroom provided with the drain trap concerning an embodiment. It is a perspective view of the drain trap of FIG. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is sectional drawing which shows another installation state of a drain trap. It is a disassembled perspective view of a water guide member main body, a sealing cylinder, and a nozzle body. It is an assembly perspective view of a water guide member main body, a sealing cylinder, and a nozzle body. It is a perspective view of the drain trap concerning another embodiment. It is the XVIII-XVIII sectional view taken on the line of FIG. It is the IXX-IXX sectional view taken on the line of FIG.

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

  FIG. 1 is a perspective view of a drain trap according to the embodiment, FIG. 2 is a perspective view of the receiving chamber viewed from above the drain trap, and FIG. 3 is a state in which the ceiling of the sealed chamber of the drain trap is removed. FIG. 4 is a perspective view showing a state where the peripheral wall portion is further removed from FIG. 3, FIG. 5 is a perspective view showing a state where the water guide tube and the lid plate are further removed from FIG. Fig. 7 is a perspective view showing a state in which the flow path cover is further removed from Fig. 5, Fig. 7 is a plan view of the drain trap in the state of Fig. 6, and Fig. 8 is a cross section taken along line VIII-VIII of Fig. 1. 9 and 9 are cross-sectional views taken along the line IX-IX in FIG.

  Although illustration is omitted, the floor of the bathroom is constituted by a bathtub pan and a washing pan, and a bathtub is installed on the bathtub pan. A bathtub pan drain and a bathtub drain are provided on the bottom of the bathtub and the bathtub, respectively. The bathtub pan drain outlet has a larger diameter than the bathtub drain outlet, and the bathtub drain outlet is disposed so as to be exposed inside the bathtub pan drain outlet. A drainage basin is formed on the bathtub side of the washing pan. The drainage basin is formed in a concave shape integrally with the washing basin pan, and a washing basin drain is provided on the bottom surface. In this embodiment, the bathtub pan is provided on the floor of the bathroom, but the specification may be such that the bathtub pan is not provided.

  A drain trap 10 is connected to the bathtub pan drain and the washing ground drain from the lower side.

  The drain trap 10 includes a wash basin drain 11 through which the waste water from the wash basin flows through the wash basin drain of the drainage tub, and a bathtub drain that the drain from the tub and tub pan flows through the bathtub drain and the tub pan drain. And a bathtub pan drainage inlet (hereinafter sometimes abbreviated as a bathtub drainage inlet) 12. Further, the side of the drain trap 10 opposite to the bathtub drain inlet 12 is a confluence where water flowing into the drain trap 10 from the washing ground drain inlet 11 and bathtub drain inlet 12 flows out. An outlet 14 is provided. A drain pipe (not shown) is connected to the merging outlet 14.

  The drain trap 10 includes a drain socket 15 for connection to the bathtub pan drain port. The drain socket 15 includes an annular flange portion 15a that overlaps the peripheral portion of the bathtub pan drainage port from the lower side of the bathtub pan, a peripheral wall portion 15b that has an upper end connected to the inner peripheral edge of the flange portion 15a, and the peripheral wall portion 15b. An inward flange-shaped flange portion 15c provided around the lower end portion, one end side (upstream side) is connected to the inner peripheral edge of the flange portion 15c from below, and the other end side (downstream side) is below the washing pan. It has a substantially L-shaped bathtub drainage flow path forming portion 15d extending in the direction. The inner peripheral side of the flange portion 15 c is the bathtub drainage inlet 12. A female screw 15e is provided around the inner peripheral surface of the peripheral wall portion 15b.

  An annular coupling flange (not shown) is screwed into the inside of the peripheral wall portion 15b of the drain socket 15 through the bathtub pan drain port from above. This coupling flange is screwed into a female screw 15e on the inner peripheral surface of the peripheral wall portion 15b. The structure of this coupling flange is the same as that of the below-described coupling flange 13 that is screwed into the washing ground drainage receiving port 11. The edge of the bathtub pan drainage is sandwiched between the flange portion 15a and the coupling flange of the drainage socket 15, whereby the drainage socket 15 is connected to the bathtub pan drainage. The bathtub drainage and the bathtub pan drainage flow into the bathtub drainage inlet 12 of the drainage socket 15 through the inner peripheral side of the coupling flange.

  A bathtub drainage inlet 25k of a housing 25 described later is connected to the downstream side of the bathtub drainage flow path forming portion 15d of the drainage socket 15. An opening 25 a for configuring the washing place drainage receiving port 11 is provided on the upper surface portion of the housing 25. An annular coupling flange 13 is screwed into the opening 25a from above through the drainage outlet of the drainage basin, so that the housing 25 is connected to the bottom of the drainage basin. The detailed configuration of the coupling flange 13 and the housing 25 will be described later.

  A hair catcher 17 is inserted into the housing 25 through the coupling flange 13 so as to be detachable from above. The hair catcher 17 has a basket shape with an open upper surface. The code | symbol 17b of FIG. 1 has shown the holding part which an operator hold | grips when attaching / detaching this hair catcher 17. As shown in FIG.

  Next, the construction of the drain trap 10 will be described in detail with particular reference to FIGS.

  The drain trap 10 is surrounded by a substantially cylindrical peripheral wall portion 21, and has a wash basin drain receiving port 11 in the upper portion and a wash basin drain receiving chamber 20 having a first outlet 22 in the lower portion, and an inside thereof. The peripheral wall portion 21 is received, and is connected to a sealed water chamber 23 into which effluent water from the first outlet 22 flows, and the sealed chamber 23 and the merging outlet 14. A second outlet 24 (FIG. 9) for allowing the overflow water to flow out to the merging outlet 14, and bottom plates of the receiving chamber 20 and the sealing chamber 23 (in this embodiment, a flow path cover 28 described later). ) Which extends through the lower side, has the bathtub drainage inlet 12 on the upstream side, and has a third outlet 31 (FIG. 9) connected to the merging outlet 14 on the downstream side. Drain channel 30 and water guide for introducing a part of water in bathtub drain channel 30 into receiving chamber 20 Introductory flow path for guiding bathtub drainage to the water conduit 41 provided on the lower side of the bottom plate of the receiving chamber 20 and the sealing chamber 23 separately from the water conduit 41 as the material and the bathtub drain channel 30. 50 etc.

  The sealed water chamber 23 is surrounded by the housing 25. As shown in FIGS. 1 and 3-8, the housing 25 includes a bottom surface portion 25b, side wall portions 25c, 25d, 25e, 25f erected from the peripheral edge of the bottom surface portion 25b, and the side wall portions 25c, 25d, And a ceiling portion 25g that closes the space surrounded by 25e and 25f from above. In this embodiment, the side wall part 25c is located on the bathtub side (upstream side) of the housing 25, the side wall part 25e is located on the opposite side (downstream side), and the side wall parts 25d, 25f are the side wall part 25c, One end side and the other end side in the width direction of 25e (the direction perpendicular to the height direction and the thickness direction of the side wall portions 25c and 25e) are connected to each other. The peripheral edge portion of the ceiling portion 25g is engaged with the upper end portions of the side wall portions 25c, 25d, 25e, and 25f.

  An opening 25a for constituting the washing ground drainage receiving port 11 is provided in the ceiling portion 25g of the housing 25, and the peripheral wall portion 21 extends through the opening 25a in the vertical direction in the cylinder axis direction in the housing 25. Has been inserted as. An outwardly flanged flange portion 21 c is provided around the upper end portion of the peripheral wall portion 21. A sealed chamber 23 is formed between the bottom surface portion 25 b, the side wall portions 25 c, 25 d, 25 e, 25 f and the inner surface of the ceiling portion 25 g and the outer peripheral surface of the peripheral wall portion 21 of the housing 25.

  As shown in FIG. 8, a cylindrical portion 25h is connected to the inner periphery of the opening 25a. A female screw (not shown) is provided around the inner peripheral surface of the cylindrical portion 25h. An inward flange-like flange portion 25j is provided around the lower end portion of the cylindrical portion 25h. The inner diameter of the flange portion 25j is slightly larger than the outer diameter of the peripheral wall portion 21 and smaller than the outer diameter of the flange portion 21c of the peripheral wall portion 21. The peripheral wall portion 21 is inserted into the inner peripheral side of the flange portion 25j so as to be insertable / removable, and the flange portion 21c of the peripheral wall portion 21 overlaps the flange portion 25j via a packing (not shown). As shown in FIG. 8, when the peripheral wall portion 21 is set in the housing 25 in this way, the lower end of the peripheral wall portion 21 is above the level of the bottom surface of the sealing chamber 23 (the upper surface of the bottom surface portion 25b). Is located. The gap between the lower end of the peripheral wall portion 21 and the bottom surface of the sealed water chamber 23 is preferably about 10 to 20 mm, particularly about 10 to 12 mm.

  As shown in FIG. 8, the coupling flange 13 has an annular flange portion 13a that overlaps the edge of the washing ground drainage port from above, and a cylindrical portion 13b whose upper end portion continues to the inner peripheral edge of the flange portion 13a. Yes. A male screw (not shown) is provided around the outer peripheral surface of the cylindrical portion 13b. The cylindrical portion 13b of the coupling flange 13 is screwed into the cylindrical portion 25h from above through the washing ground drain port and the opening 25a so that the male screw and the female screw are screwed together, and the flange portion of the coupling flange 13 is engaged. 13a and the ceiling portion 25g of the housing 25 sandwich the edge of the washroom drain, thereby connecting the housing 25 to the bottom of the drain. Note that the outer diameter of the flange portion 21 c of the peripheral wall portion 21 is smaller than the inner diameter of the coupling flange 13.

  At the upper end portion of the hair catcher 17, a flange portion 17a projecting radially is provided. The outer diameter of the flange portion 17a is equal to or slightly smaller than the inner diameter of the coupling flange 13. When the hair catcher 17 is inserted into the inner peripheral side of the cylindrical portion 13b from above on the upper end side of the inner peripheral surface of the cylindrical portion 13b, the hair catcher 17 is received by engaging with the flange portion 17a. A locking portion 13d (FIG. 2) that locks the upper portion of the chamber 20 is provided. The hair catcher 17 is locked by the locking portion 13 d so that the upper surface thereof is substantially flush with the upper surface of the coupling flange 13. The locking portion 13d holds the hair catcher 17 so that the hair catcher 17 is not lifted by the swirl flow formed in the receiving chamber 20.

  The bottom surface portion 25 b of the housing 25 is provided with a flow path forming groove 26 for forming the bathtub drainage flow path 30 and the introduction flow path 50 in the housing 25. In this embodiment, the flow path forming groove 26 is a concave groove provided from the upper surface of the bottom surface portion 25b. The flow path forming groove 26 extends from the upstream side to the downstream side of the bottom surface part 26 b through the lower part of the receiving chamber 20.

  A bathtub drainage inlet 25k (FIG. 9) is provided at the lower end of the side wall portion 25c on the upstream side of the housing 25, and the upstream side of the flow path forming groove 26 is connected to the bathtub drainage inlet 25k. In this embodiment, the bathtub drainage inlet 25k is formed in a cylindrical shape that protrudes from the outer surface of the side wall 25c toward the bathtub. The downstream side of the bathtub drainage flow path forming portion 15d of the drainage socket 15 is connected to the front end side (upstream side) of the bathtub drainage inlet 25k in the protruding direction.

  That is, in this embodiment, the bathtub drainage channel 30 is constituted by the bathtub drainage channel forming portion 15d, the bathtub drainage inlet 25k, and the channel formation groove 26.

  In this embodiment, as clearly shown in FIG. 6, the inside of the flow path forming groove 26 is divided into three flow paths by a pair of partition walls 27 and 27 erected from the bottom surface. The partition walls 27, 27 are arranged with a space therebetween in the width direction of the flow path forming groove 26. Further, there is a gap between both side surfaces of the flow path forming groove 26 and the partition walls 27 facing the both sides. In this embodiment, between the partition walls 27 and 27 in the flow path forming groove 26 is the bathtub drainage flow path 30 in the housing 25, and both side surfaces of the flow path forming groove 26 are The introduction flow path 50 is formed between the partition walls 27 facing each other. In addition, the number and arrangement | positioning of the introduction flow path 50 are not limited to this, The introduction flow path 50 may be provided only 1 piece or 3 or more. In this embodiment, the introduction flow paths 50 are disposed on both sides of the bathtub drainage flow path 30, but the bathtub drainage flow paths 30 may be disposed on both sides of the introduction flow path 50. Each of the bathtub drainage flow channel 30 and the introduction flow channel 50 may be branched into two or more flow channels in the middle part in the extending direction.

  Each partition wall 27 extends from the upstream side of the flow path forming groove 26 to a lower region of the receiving chamber 20. A closing block 27 a is connected to the downstream side of each partition wall 27. Each closing block 27a closes between the downstream side of each partition wall 27 and both side surfaces of the flow path forming groove 26 opposed thereto. Thereby, each introduction flow path 50 has extended from the upstream of the bottom face part 25b to the downward area | region of the receiving chamber 20 in the both sides of the bathtub drainage flow path 30, respectively. The upstream side of each introduction flow path 50 (between both side surfaces of the flow path forming groove 26 and the upstream side of each partition wall 27 facing this) is open to the bathtub drainage inlet 25k. Moreover, the upstream side of the bathtub drainage flow path 30 between the partition walls 27 and 27 is also opened to the bathtub drainage inlet 25k. The bathtub drainage flow path 30 passes between the partition walls 27 and 27 and extends to the downstream side of the bottom surface portion 25b.

  The distance between both side surfaces of the flow path forming groove 26 and the respective partition walls 27 facing this (the width of each introduction flow path 50) is preferably 10 to 50 mm, particularly 10 to 30 mm. The distance between the partition walls 27, 27 (the width on the upstream side of the bathtub drainage channel 30 in the housing 25) is preferably 10 to 50 mm, particularly preferably 20 to 30 mm. The width of the flow path forming groove 26 on the downstream side of the space between the partition walls 27 (the width on the downstream side of the bathtub drainage flow path 30 in the housing 25) is preferably 10 to 50 mm, particularly 20 to 30 mm.

  A flow path cover 28 is attached so as to cover the flow path forming groove 26 from above. By the flow path cover 28, the sealed chamber 23 and the flow path forming groove 26 are separated. As shown in FIGS. 6 and 9, the flow path cover 28 extends over the entire length of the flow path forming groove 26. The upstream edge of the flow path cover 28 is continuous with the upstream side wall 25 c of the housing 25, and the downstream edge is continuous with the downstream side wall 25 e of the housing 25. The upper end of each partition wall 17 is in contact with the lower surface of the flow path cover 28.

  As shown in FIGS. 5 and 8, in this embodiment, the flow path cover 28 constitutes the bottom plate of the receiving chamber 20 and the sealed water chamber 23.

  As shown in FIG. 8, the flow path cover 28 is installed so that the upper surface thereof is substantially flush with the upper surface of the bottom surface portion 25 b of the housing 25. Specifically, as shown in FIG. 8, each of the corners between the upper surface of the bottom surface portion 25 b and both side surfaces of the flow path forming groove 26 has recessed step portions (reference numerals omitted) lower than the upper surface of the bottom surface portion 25 b. It is formed, and both side edge portions of the flow path cover 28 are engaged with the concave step portion. The depth of the recessed step portion is substantially equal to the thickness of the flow path cover 28. Engagement pieces 28a protrude downward from both side edge portions of the flow path cover 28, and the engagement pieces 28a are engaged with engagement grooves 25m provided in the concave stepped portions. Further, from the lower surface of the flow path cover 28, a hanging piece 28b that enters into the flow path forming groove 26 is provided so as to face the engagement piece 28a, and the hanging piece 28b is provided in the flow path. It overlaps with both side surfaces of the formation groove 26, respectively. The distance between the lower surface of the flow channel cover 28 and the bottom surface of the flow channel forming groove 26 (height of the bathtub drainage flow channel 30 and the introduction flow channel 50 in the housing 25) is 10 to 20 mm, particularly 10 to 12 mm. Is preferred.

  As shown in FIGS. 3 to 6, the region on the downstream side of the lower region of the peripheral wall portion 21 in the bottom surface portion 25 b of the housing 25 is an upright portion 25 p that becomes higher as the distance from the peripheral wall portion 21 increases. The level of the upper end of the upright portion 25p is higher than the lower end of the peripheral wall portion 21. The downstream side of the flow path forming groove 26 also extends along the rising portion 25p so that the downstream side is higher. A substantially horizontal portion 25q extending substantially horizontally toward the downstream side continues to the upper end of the upright portion 25p. The downstream side of the flow path forming groove 26 extends to a corner portion between the substantially horizontal portion 25q and the side wall portion 25e on the downstream side of the housing 25. The level of the bottom surface of the flow path forming groove 26 on the substantially horizontal portion 25q is higher than the level of the flow path cover 28 in the lower region of the peripheral wall portion 21.

  As shown in FIGS. 3 to 6, an opening 25r is provided in the side wall 25e on the downstream side of the housing 25, and the substantially cylindrical merging outlet 14 is connected to the opening 25r. The level of the lower edge of the opening 25r is substantially the same level as the bottom surface of the flow path forming groove 26 on the substantially horizontal portion 25q. The level of the upper edge of the opening 25r is higher than the upper surface of the substantially horizontal portion 25q.

  As shown in FIG. 9, the downstream side of the flow path forming groove 26 faces the lower portion of the opening 25r, and the opening 25r is vertically divided by a flow path cover 28 that covers the upper surface of the flow path forming groove 26. . The lower portion of the opening 25r below the flow path cover 28 is the third outlet 31 that communicates with the bathtub drainage flow path 30 in the flow path forming groove 26. Further, the upper part is the second outlet 24 communicating with the sealed water chamber 23.

  As shown in FIGS. 5, 8, and 9, below the receiving chamber 20, the channel cover 28 is provided with a large-diameter opening 28e that communicates with both the bathtub drain channel 30 and the inlet channels 50 on both sides thereof. ing. The opening 28e has a substantially circular shape and is disposed substantially concentrically with the peripheral wall portion 21. The shape and arrangement of the opening 28e are not limited to this.

  As shown in FIGS. 4, 8, and 9, a substantially circular lid plate 60 covering the opening 28e is attached to the upper surface of the flow path cover 28. The outer diameter of the lid plate 60 is smaller than the inner diameter of the coupling flange 13. A convex portion 61 protrudes from the lower surface of the lid plate 60, and the convex portion 61 is fitted in the opening 28e. The outer peripheral side of the convex portion 61 of the lid plate 60 overlaps the upper surface of the flow path cover 28 around the opening 28e over the entire circumference via a packing (not shown).

  A plurality of locking pieces (not shown) project in a radial direction from the outer edge of the lid plate 60. As shown in FIGS. 4 and 5, the upper surface of the flow path cover 28 around the opening 28e is provided with a plurality of hook portions 28d in a positional relationship corresponding to the respective locking pieces. The lid plate 60 is detachably attached to the upper surface of the flow path cover 28 by engaging with the hook portion 28d. Engagement and disengagement between the locking piece and the hook portion 28d are performed in the forward / reverse direction of the lid plate 60 along the upper surface of the flow path cover 28 with the convex portion 61 fitted in the opening 28e. This is done by rotating it.

  As shown in FIG. 8, the lid plate 60 is provided with two bathtub drainage inlets 29 penetrating the lid plate 60 in the vertical direction. These bathtub drainage inlets 29 and 29 are arranged at intervals in the width direction of the channel forming groove 26, and communicate with the respective inlet channels 50 on both sides of the bathtub drainage channel 30.

  As shown in FIGS. 4 and 8, in this embodiment, the water guide pipes 41 project upward from the peripheral edge of each bathtub drainage inlet 29 on the upper surface of the lid plate 60. The upper end side of each water guide tube 41 is disposed inside the peripheral wall portion 21. These water guide tubes 41, 41 are arranged on opposite sides of the center of the peripheral wall portion 21. As shown in FIG. 8, the inside of each water guide tube 41 communicates with each introduction flow path 50 via each bathtub drainage introduction port 29.

  A ceiling portion 41b is provided at the upper end of each water guide tube 41, and a water outlet 42 is provided so as to cut out a part of the ceiling portion 41b. Each water outlet 42 is open in a substantially tangential direction of the inner peripheral surface of the peripheral wall portion 21. That is, the bathtub drainage that has flowed into the water guide tube 41 from each bathtub drainage inlet 29 is discharged from the water outlet 42 into the receiving chamber 20 in a direction substantially tangential to the inner peripheral surface of the peripheral wall 21.

  As shown in FIGS. 2 and 3, the water outlet 42 is opened in the circumferential direction of the peripheral wall portion 21 and obliquely upward. Specifically, a ceiling portion 41b is formed on the upper end surface of each water guide tube 41 so as to partially close the opening on the upper end side of the bathtub drainage introduction passage 41a. Of the ceiling portion 41 b, each edge on the inner peripheral side and the outer peripheral side of the peripheral wall portion 21 and an edge portion on one end side in the circumferential direction of the peripheral wall portion 21 are connected to the upper end edge of the side peripheral surface of the water guide tube 41. The edge on the other end side in the circumferential direction of the peripheral wall portion 21 is separated from the upper end edge of the side peripheral surface of the water guide tube 41. Thereby, the upper end side of the bathtub drainage introduction path 41a is partially opened at the other end side of the ceiling portion 41b, and this open port serves as a water discharge port 42 for bathtub drainage. The upper end edge of the side peripheral surface of the water guide tube 41 facing the water outlet 42 extends obliquely so as to become lower as the distance from the ceiling portion 41b increases.

  In this embodiment, each spout 42 is opened toward the counterclockwise direction when the receiving chamber 20 is viewed from above. Thereby, when bathtub drainage is discharged from each spout 42, the counterclockwise swirl flow is formed in the receiving chamber 20 by the water flow of the discharged water. Each water outlet 42 may be opened toward the clockwise direction when the receiving chamber 20 is viewed from above. In this case, the clockwise swirling flow is formed in the receiving chamber 20 by the water flow of the discharge water from each water discharge port 42. In addition, although the spout 42 is open | released in the circumferential direction of the surrounding wall part 21, and diagonally upward in this embodiment, you may open | release in the substantially horizontal direction.

  Each water guide tube 41 is formed integrally with the lid plate 60 in this embodiment, but may be formed separately from the lid plate 60 and detachably connected to each bathtub drainage inlet 29.

  An arc-shaped plate-like shelf 71 projecting from the inner peripheral surface of the peripheral wall portion 21 is provided so that the water discharged from the water discharge port 42 is swung along the upper inner peripheral surface of the peripheral wall portion 21. The shelf-like portion 71 extends from one water guide tube 41 to the other water guide tube 41 along the inner peripheral surface of the peripheral wall portion 21, and the level of the upper surface on one end side is the water outlet 42 of each water guide tube 41. It is substantially the same level as the lower edge of the frame or slightly lower (for example, about 5 mm or less, especially about 1 to 2 mm). In this embodiment, two shelf-like portions 71 are provided, and each of the one end portions is on the lower edge of the water discharge port 42 of each water guide tube 41 or the side surface of each water guide tube 41 below the water discharge port 42. I'm here. The upper end portion of each water guide tube 41 projects upward from the one end side of each shelf-like portion 71, and the water discharged from each water outlet 42 is discharged to the upper side of each shelf-like portion 71.

  The other end side of each shelf-like portion 71 is a slope portion 72 that is higher on the end side. The level of the most distal end of the slope portion 72 is substantially equal to or higher than the upper surface of the ceiling portion 41b of each water guide tube 41. The inclination angle of the slope portion 72 with respect to the horizontal direction in the direction along the inner peripheral surface of the peripheral wall portion 21 is preferably 20 to 80 °, particularly preferably 30 to 50 °.

  Each shelf-like portion 71 and its slope portion 72 are formed integrally with the peripheral wall portion 21 in this embodiment, but are formed separately from the peripheral wall portion 21 and can be attached to and detached from the peripheral wall portion 21. May be installed.

  As shown in FIG. 2, a projecting portion 73 projects upward from the upper surface of the flange portion 21 c of the peripheral wall portion 21 along the outer peripheral edge of each slope portion 72. The level of the upper end of the projecting portion 73 is substantially the same level as the most distal end portion of the slope portion 72 or lower.

  As shown in FIG. 8, the hair catcher 17 is arranged on the upper side of each shelf-like portion 71 and its slope portion 72. The upper surface of the shelf-like portion 71 and the water guide tube ceiling portion 41b are close to the bottom surface of the hair catcher 17, but are separated by a predetermined distance.

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

  Drainage from the washing basin flows into the receiving chamber 20 through the drainage basin and the washing basin drainage inlet 11, and flows into the sealed chamber 23 from the receiving chamber 20 through the first outlet 22. At this time, the outflow water from the first outlet 22 flows from the lower end of the peripheral wall portion 21 and the bottom surface of the sealed water chamber 23 below (in this embodiment, the flow path disposed in the lower region of the receiving chamber 20. It flows into the sealed water chamber 23 through a gap between the cover 28 and the upper surface of the lid plate 60 attached to the upper surface thereof. The water in the sealed water chamber 23 flows out to the drain pipe through the second outlet 24 and the merge outlet 14. When the outflow of the washing ground drainage stops, the sealed water remains in the sealed water chamber 23 to the level of the substantially horizontal portion 25q. Since the lower end of the peripheral wall portion 21 is submerged in the sealed water, the odor of the drain pipe is prevented from flowing back into the bathroom from the washing place drain outlet 11. Moreover, since the bathtub drainage channel 30 is also submerged, this odor does not flow back to the bathtub.

  The drainage from the bathtub flows into the bathtub drainage channel 30 from the bathtub drainage port via the bathtub pan drainage port and the bathtub drainage inlet 12, and the third outlet 31 and the junction outlet 14 are connected to the bathtub drainage channel 30. It flows out to the drain pipe. At this time, part of the water flowing through the bathtub drainage flow path 30 flows into the introduction flow paths 50 in the middle of the bathtub drainage flow path 30 and flows through the introduction flow paths 50 from the bathtub drainage introduction ports 29. The water flows into the water guide tubes 41 of the water guide members 40, flows through the water guide tubes 41, and flows out from the water discharge ports 42 to the upper side of the shelf-like portion 71 at the top of the peripheral wall portion 21.

  Since water flows out from each water discharge port 42 in a substantially tangential direction of the inner peripheral surface of the peripheral wall portion 21, a swirl flow is formed on the upper side of the shelf-shaped portion 71 by the water force. Moreover, the water level in the receiving chamber 20 rises due to the inflow of water, and the hair catcher 17 or the drainage basin is in a state of being submerged in the swirling flow. Thereby, the dust adhering to the inner surface of the drainage basin and the hair catcher 17 is scraped off, and the dust such as hair is collected at the center of the vortex and collected at the center of the bottom surface of the hair catcher 17. Thereby, the inner surface of the drainage basin and the inner and outer surfaces of the hair catcher 17 are purified, and slime and the like are removed. In addition, the dust in the hair catcher 17 can be picked and discarded.

  In this embodiment, water discharged from each water outlet 42 is discharged to the upper side of each shelf-like portion 71. Therefore, the discharged water from each water discharge port 42 turns on the upper side of each shelf-like portion 71 without flowing down to the lower portion of the receiving chamber 20 in a short circuit. Accordingly, even when the amount of water in the swirling flow is small, the hair catcher 17 can be sufficiently immersed in the swirling flow, the hair catcher 17 can be sufficiently washed, and the dust in the hair catcher 17 can be sufficiently removed from the hair. It can be collected at the center of the catcher 17.

  In this embodiment, each shelf-like portion 71 is provided with a slope portion 72 that is inclined so as to become higher as it is separated from the water discharge port 42, and the swirl flow on the shelf-like portion 71 72, the water flow (flow velocity) of the swirling flow is maintained. Further, since the swirling flow is lifted along the slope portion 72 and guided to the upper side of the peripheral wall portion 21, the swirling flow is less likely to drop to the lower portion of the receiving chamber 20, and the swirling flow is immersed to the upper portion of the hair catcher 17. Will be able to.

  A part of the water in the receiving chamber 20 flows into the sealed chamber 23 through the first outlet 22 at the bottom of the receiving chamber 20. Thereafter, the water in the sealed water chamber 23 flows out to the drain pipe through the second outlet 24 and the merging outlet 14. When the outflow of the bathtub drainage stops, the inside of the bathtub drainage flow path 30 is filled with sealed water, and the odor of the drainage pipe is prevented from flowing back from the bathtub drainage inlet 12 into the bathroom.

  In addition, as the bathtub drainage flows out to the drain pipe through the merging outlet 14, a negative pressure is generated in the sealed water chamber 23 and the sealed water in the sealed water chamber 23 is sucked out to the merging outlet 14. However, since a part of the water in the bathtub drainage channel 30 sufficiently flows into the receiving chamber 20 from the plurality of water guide members 40, the sealed water is refilled in the sealed chamber 23. It is prevented that the sealed water runs out in the water chamber 23.

  Next, procedures for cleaning and maintaining the drain trap 10 will be described.

  When cleaning or maintenance of the drain trap 10 is performed, first, the cover of the drainage tub is removed, and the peripheral wall portion 21 is pulled out from the washing place drainage receiving port 11. At this time, each shelf-like portion 71 is also removed integrally with the peripheral wall portion 21. Next, a hand or a tool is inserted into the housing 25 from the washing ground drainage receiving port 11, the water guide tubes 41 are grasped, the lid plate 60 is rotated, and each locking piece of the lid plate 60 and the upper surface of the flow path cover 28. The engagement with each hook portion 28d is released. Thereafter, each water guide tube 41 and the lid plate 60 are taken out of the housing 25 from the washing ground drainage inlet 11 integrally.

  Thereafter, a cleaning tool or tool is inserted into the housing 25 from the washing drain discharge port 11 to clean or maintain the inside of the housing 25, and further, from the opening 28e into the bathtub drainage channel 30 and each introduction channel 50. A cleaning tool or a tool is inserted into the bathtub drainage flow path 30 and each introduction flow path 50 for cleaning and maintenance. Moreover, cleaning and maintenance of the removed peripheral wall part 21, the shelf-like part 71 and its slope part 72, each water guide tube 41, and the cover plate 60 are performed.

  After completion of cleaning and maintenance, the lid plate 60 is inserted into the housing 25 through the washing place drainage receiving port 11 and attached to the opening 28e by a procedure reverse to the above-described removal procedure, and then the peripheral wall portion 21 is washed into the washing place drainage. Insert into the housing 25 from the inlet 11. Then, attach a cover to the drainage basin and complete the work.

  The effects of the drain trap 10 are as follows.

  In this drain trap 10, since a plurality of water guide tubes 41 (two in this embodiment) are provided as water guide members, a part of the bath drainage is passed through each water guide tube 41 during bath drainage. And efficiently introduced into the receiving room 20. Accordingly, when the bathtub drainage flows out through the merge outlet 14, a negative pressure is generated in the sealed chamber 23, and the sealed water in the sealed chamber 23 is sucked out to the merge outlet 14. However, since the water introduced into the receiving chamber 20 from each water guide tube 41 flows into the sealed water chamber 23, the sealed water is sufficiently supplied into the sealed water chamber 23. It is prevented from running out of water.

  As described above, in this embodiment, since water flows out from each water guide tube 41 in a substantially tangential direction of the receiving chamber 20, a swirling flow is generated in the receiving chamber 20. The hair catcher 17 is immersed in the swirling flow, and dust such as hair in the hair catcher 17 is collected at the center of the hair catcher 17. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher 17 are immersed in a swirling flow to be purified, and slime and the like are removed. In this embodiment, since the two water guide tubes 41 are provided so as to face each other in the diameter direction of the receiving chamber 20, the swirl flow can be efficiently formed and the unevenness of the swirl flow is small. Become.

  As described above, in this embodiment, the swirl flow forming portion is defined by the shelf-like portion 71 above the peripheral wall portion 21, and the hair catcher 17 is disposed in the swirl flow forming portion, and each water guide tube 41. Since water is discharged to the upper side of the shelf-like portion 71, the hair catcher 17 can be sufficiently immersed in the swirling flow even when the amount of swirling water is small.

  In this embodiment, separately from the bathtub drainage channel 30, an introduction channel 50 that guides the bathtub drainage to each water guide tube 41 is provided below the receiving chamber 20 and the sealed chamber 23. Therefore, a part of the bathtub drainage flows out to the upper part of the receiving chamber 20 through each introduction flow path 50 and the water guide pipe 41, and the bathtub drainage is efficiently introduced into the receiving chamber 20, and the upper part of the receiving chamber 20 Thus, a swirl flow is efficiently formed.

  In this embodiment, two introduction flow paths 50 and two water guide pipes 41 are provided, and the bathtub drainage is guided from each introduction flow path 50 to each water guide pipe 41. Drainage can be discharged. Further, since the two water guide tubes 41 are arranged at intervals in the circumferential direction of the receiving chamber 20, the flow velocity distribution of the swirling flow in the swirling direction in the receiving chamber 20 is small.

  In this embodiment, since the introduction flow paths 50 are provided on both sides of the bathtub drainage flow path 30, the bathtub drainage that has flowed into the bathtub drainage flow path 30 is branched into the respective introduction flow paths 50, and each water guide cylinder is efficiently made. 41.

  In this embodiment, below the receiving chamber 20, an opening 28e is provided in the flow path cover 28 constituting the bottom plate of the receiving chamber 20 and the sealing chamber 23, and a lid plate 60 is detachably provided in the opening 28e. ing. By opening the lid plate 60, the inside of the channel forming groove 26 (that is, the inside of the bathtub drainage channel 30 and the inside of each introduction channel 50) can be cleaned and maintained through the opening 28e.

  In this embodiment, the water guide tube 41 is provided integrally with the lid plate 60. Moreover, the surrounding wall part 21 is inserted in the housing 25 from the washing place drainage receiving port 11 so that insertion / extraction is possible. Thereby, since this surrounding wall part 21 and the water conveyance pipe | tube 41 can also be removed from the inside of the housing 25, this circumferential wall part 21 and the water conveyance pipe | tube 41 can also be cleaned easily and maintained easily. Moreover, by removing these, the inside of the housing 25 and the inside of the flow path forming groove 26 can be easily and sufficiently cleaned and maintained via the washing ground drainage inlet 11.

  In the above-described embodiment, two water guide tubes 41 are disposed on the opposite sides across the axis of the receiving chamber 20, but the number and arrangement of the water guide tubes 41 are not limited thereto. In the present invention, three or more water guide tubes 41 may be arranged at a predetermined interval (for example, at equal intervals) in the circumferential direction of the receiving chamber 20.

  FIG. 10 is a schematic perspective view of a bathroom provided with a drain trap according to another embodiment, FIG. 11 is a perspective view of this drain trap, FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. FIG. 13 is a sectional view taken along line XIII-XIII in FIG.

  The floor of the bathroom 101 is composed of a bathtub pan (not shown) and a washing pan 102, and a bathtub 103 is installed on the bathtub pan. A drainage basin 104 is provided on the tub 103 side of the wash basin pan 102. The drainage basin 104 is formed in a concave shape integrally with the washing place pan 102. A drainage pan 5 is attached to the upper surface of the drainage basin 104.

  A drain trap 110 is connected to the drain pans 101 a and 103 a of the bathtub pan and the bathtub 103 and the drain 104 of the washing pan 102 from the lower side.

  As shown in FIG. 11, on the upper surface in the longitudinal center of the drain trap 110, there is provided a washing basin drainage inlet 111 through which drainage from the washing basin 102 flows through the drainage basin 104, and the upper surface on the other end side. Are provided with a bathtub drainage inlet 112 through which drainage from the bathtub 103 flows through the drainage port 103a and a bathtub pan drainage inlet 113 through which drainage from the bathtub pan flows through the drainage port 101a.

  Further, at the other end side of the drain trap 110, a confluence outlet 114 through which water flowing into the drain trap 110 flows out from the washing ground drain inlet 111, the bathtub drain inlet 112, and the bathtub pan drain inlet 113 is provided. Is provided. A drain pipe 106 is connected to the merging outlet 114.

  In the drain trap 110, a trap chamber 120 is provided below the washing ground drain inlet 111, and the trap chamber 120 communicates with the merge outlet 114. Below the bottom plate 122 of the trap chamber 120, a bathtub drainage flow path 123 that connects the bathtub drainage inlet 112, the bathtub pan drainage inlet 113, and the merge outlet 114 is provided.

A sealing tube 132 is suspended in the trap chamber 120 so as to be locked to the inward flange 131 on the inner peripheral surface of the washing ground drain receiving port 111. The sealing tube 132 is provided with a flange portion 132 a (FIG. 15) at the upper end, and the flange portion 132 a is locked to the flange portion 131. A clearance is provided between the lower end of the sealing tube 132 and the bottom plate 122, and the water in the sealing tube 132 flows out through this clearance. The bottom plate 133 of the drainage channel from the trap chamber 120 to the merge outlet 114 is inclined so as to be higher toward the merge outlet 114 side. In the trap chamber 120, the sealed water is accumulated up to the upper end 133 a level of the inclined bottom plate 133. The sealing cylinder 132 has a length such that the lower part thereof is immersed in the sealing water.
The inside of the sealing tube 132 is a receiving chamber, and the outside is a sealing chamber.

  A guide projection 132b is provided so as to project upward from the flange portion 132a of the water sealing tube 132. Two guide protrusions 132b are provided opposite to each other in the diameter direction of the sealing tube 132, but more guide protrusions 132b may be provided. The guide protrusion 132 b has a rectangular plate shape, and the plate surface is in the radial direction of the sealing tube 132. The guide protrusion 132b has a role of engaging with a notch 152 of the nozzle body 150, which will be described later, to guide the vertical movement of the nozzle body 150. However, the guide protrusion 132b is also used as a knob for gripping when the sealing tube 132 is attached or detached. it can.

  A trap mounting flange 134 is screwed to the washing ground drain receiving port 111, and a trap mounting opening 104 a (see FIGS. 13 and 14) at the bottom of the drainage tub 4 between the upper surface portion 135 on the main body side and the flange 134. The drainage trap 110 is fixed to the washing place pan 102 by sandwiching the edge portion of) through the packing. FIG. 13 shows a case where the thickness of the peripheral portion of the opening 104a is relatively small, and FIG. 14 shows a case where the thickness of the peripheral portion of the opening 104a is relatively large.

  A hair catcher 137 is detachably mounted on the trap mounting flange 134 so as to be fitted into the trap mounting flange 134 by being engaged with the convex portion 136 on the inner peripheral surface of the trap mounting flange 134.

  Below the hair catcher 137, an opening 139 is provided in the bottom plate 122, and a water guide member main body 140 is attached to the opening 139.

  The water guide member main body 140 includes a large-diameter cylindrical base end annular portion 141 and a plurality (two in this embodiment) of branch pipe portions 142 branched upward from the top of the base end annular portion 41. Have. As shown in FIGS. 13 and 14, a flange portion 143 and a claw portion 144 are provided on the outer peripheral surface of the proximal end annular portion 41, and the flange portion 143 and the claw portion 144 are viewed from above and below the edge portion of the opening 139. The water guide member main body 140 is detachably attached to the bottom plate 122 by engaging so as to sandwich the pin. The branch pipe portion 142 has a rectangular tube shape opened upward.

  A nozzle body 150 is fitted to the upper end of the branch pipe portion 142 so as to be movable up and down from above. The nozzle body 150 is provided at two locations facing the flat ring-shaped shelf-shaped portion 151, a cutout portion 152 having a shape cut from the outer peripheral edge of the shelf-shaped portion 151, and the diameter direction of the shelf-shaped portion 151. A coronal portion 153 and an outlet 154 provided on one circumferential direction directing surface of the coronal portion 153. The outlet 154 is provided on the upper side of the shelf 151 so that water flows out toward the upper surface of the shelf 151. A part of the crown-shaped part 153 protrudes inward from the inner periphery of the shelf-shaped part 151, and a part of the outflow port 154 exists inside the inner peripheral edge of the shelf-shaped part 151.

  The crown portion 153 is fitted to the upper end of the branch pipe portion 142 so as to be movable up and down, and the notch portion 152 is engaged with the guide protrusion 132b. Each coronal part 153 is provided with one outlet 154, and water from each branch pipe part 142 flows out from each outlet 154 in the same turning direction. The water guiding member body 140 and the nozzle body 150 constitute a water guiding member.

  Next, the operation of the drain trap 110 will be described.

  Drainage from the washing area pan 102 flows into the trap chamber 120 through the drainage basin 104 and the washing area drainage inlet 111, and flows out from the confluence outlet 114 to the drainage pipe 106 through the lower side of the sealing tube 132. When the outflow of the washing ground drainage stops, the sealed water remains in the trap chamber 120, and the lower end of the sealing tube 132 is submerged in the sealed water, so that the odor of the drain pipe 106 enters the bathroom from the washing ground drainage inlet 111. Backflow is prevented.

  In addition, as the bathtub drainage flows into the drain pipe through the merge outlet 114, a negative pressure is generated in the sealed chamber 123, and the sealed water in the sealed chamber 123 is sucked out to the merge outlet 114. In some cases, a part of the water in the bathtub drainage channel 130 sufficiently flows into the receiving chamber 120 from the water guide member 140 having a large diameter at the lower portion and a plurality of branches at the upper portion. Since the sealed water is replenished, the sealed water is prevented from running out in the sealed water chamber 123.

  The drainage from the bathtub 103 and the bathtub pan flows out from the drain outlets 103a and 1a, the bathroom drainage inlet 112, the bathtub pan drainage inlet 113, the bathtub drainage channel 123 and the junction outlet 114 to the drain pipe 106. . At this time, part of the water flowing through the bathtub drainage channel 123 flows into the water guide member main body 140 in the middle of the bathtub drainage channel 123, passes through the branch pipe part 142, and enters the trap chamber 120 from the outlet 154. Since it flows out in the circumferential direction, a swirl flow is formed in the trap chamber 120. Moreover, the water level in the trap chamber 120 rises due to the inflow of water, the hair catcher 137 is immersed in the swirling flow, and dust such as hair in the hair catcher 137 is collected at the center of the hair catcher 137. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher 137 are immersed in the swirling flow to be purified, and slime and the like are removed.

  As shown in FIG. 13, when the hair catcher 137 and the crown portion 153 of the nozzle body 150 before the start of the bathtub drainage are extremely close to each other, the nozzle body 150 does not rise at all or hardly even after the bathtub drainage starts. Outflow water from the outlet 154 flows out from the outlet 154 immediately below the hair catcher 137, and a strong swirling flow is formed in the vicinity of the hair catcher 137.

  On the other hand, as shown in FIG. 14, when the hair catcher 137 is away from the nozzle body 150 before the start of bath drainage, the coronal portion 153 is caused by the water pressure flowing into the water guide member body 140 after the bath drainage starts. Until the nozzle body 150 comes into contact with the hair catcher 137. Therefore, even in this case, the outflow water from the outflow port 154 flows out from the outflow port 154 immediately below the hair catcher 137, and the hair catcher 137 is immersed in a powerful swirling flow. The nozzle body 150 moves smoothly up and down while being guided by the upper end portion of the branch pipe portion 142 and the guide protrusion 132b.

  In this way, regardless of the height from the nozzle body 150 to the hair catcher 137, the entire hair catcher 137 is sufficiently washed, and dust such as hair is stripped from the entire top surface of the hair catcher 137. It becomes like this.

  In particular, in this embodiment, the ring-shaped shelf 151 is provided in the nozzle body 150, and most of the water flowing out from the outlet 154 swirls on the shelf 151, so that the swirl flow becomes strong.

  When the outflow of the bathtub drainage stops, the sealed water remains in the bathtub drainage flow path 123 to the level of the lower edge of the merge outlet 114, so that the odor of the drainage pipe 106 is transferred to the bathtub drainage inlet 112 and the bathtub pan drainage inlet 113. It is prevented from flowing back into the bathtub or bathroom.

  Since the nozzle body 150 used in this embodiment has a diameter larger than the inner diameter of the water seal tube 132, it does not fall into the water seal tube even if it is detached from the water guide member main body 140.

  In the above embodiment, the nozzle body 150 is fitted to the upper end of the branch pipe portion 142 so as to be movable up and down, and the height of the outflow port 154 can be changed. For example, the proximal end annular portion 41 of the water guide member moves up and down. It may be set as other modes, such as being constituted by two bodies fitted so as to be possible.

  A slope portion may be provided so as to extend in the circumferential direction so as to be continuous with the crown portion 153, and the swirling water flow may be guided to the upper side of the ceiling portion of the crown portion 153.

  17 is a perspective view of a drain trap 210 according to still another embodiment, FIG. 18 is a sectional view taken along line XVIII-XVIII in FIG. 17, and FIG. 19 is a sectional view taken along line IXX-IXX in FIG. . The perspective view of the bathroom provided with the drain trap 210 is the same as FIG.

  Similarly to FIG. 10, in this embodiment, the bathroom floor is composed of a bathtub pan (not shown) and a washing pan, and a bathtub is installed on the bathtub pan. A drainage basin 104 (FIG. 19) is provided on the bathtub side of the washing pan. The drainage basin is formed in a concave shape integrally with the washing place pan. A drainage pan is mounted on the upper surface of the drainage basin 104.

  A drain trap 210 is connected from the lower side to the drain pans of the bathtub pan, the bathtub, and the drain pan of the wash basin.

  As shown in FIG. 17, the upper surface of the drain trap 210 in the longitudinal center is provided with a washing ground drain receiving port 211 through which drainage from the washing basin flows through the drainage basin, and the upper surface on the other end side. A bathtub drainage inlet 212 through which drainage from the bathtub flows through the bathtub drainage outlet and a bathtub pan drainage inlet 213 through which drainage from the bathtub pan flows through the bathtub pan drainage outlet are provided.

  Further, at the other end side of the drain trap 210, a confluence outlet 214 through which water flowing into the drain trap 210 flows out from the washing ground drain inlet 211, the bathtub drain inlet 212, and the bathtub pan drain inlet 213. Is provided. The drain pipe 106 (see FIG. 10) is connected to the merging outlet 214.

  In the drain trap 210, a trap chamber 220 is provided below the washing ground drain inlet 211, and the trap chamber 220 communicates with the confluence outlet 214. Below the bottom plate 222 of the trap chamber 220, a bathtub drainage flow path 223 that connects the bathtub drainage inlet 212, the bathtub pan drainage inlet 213, and the merge outlet 214 is provided.

A sealing cylinder 232 is suspended in the trap chamber 220 so as to be locked to the inward flange portion 231 on the inner peripheral surface of the washing ground drain receiving port 211. The sealing cylinder 232 is provided with a flange portion 232 a (FIG. 19) at the upper end, and the flange portion 232 a is locked to the flange portion 231. There is a clearance between the lower end of the sealing tube 232 and the bottom plate 222, and the water in the sealing tube 232 flows out through this clearance. The inside of the sealing cylinder 232 is a receiving chamber, and the outside is a sealing chamber.
The bottom plate 233 of the drainage channel from the trap chamber 220 to the merge outlet 214 is inclined so as to be higher toward the merge outlet 214 side. In the trap chamber 220, the sealed water is accumulated up to the upper end 233 a level of the inclined bottom plate 233. The sealing cylinder 232 has such a length that its lower part is immersed in the sealing water.

  A trap mounting flange 234 is screwed to the washing ground drain receiving port 211, and a trap mounting opening 104 a (FIG. 19) at the bottom of the drainage tub 104 is formed between the upper surface portion 235 on the main body side and the flange 234. The drain trap 210 is fixed to the washing place pan by sandwiching the edge portion through the packing. A hair catcher 237 is detachably mounted on the trap mounting flange 234 so as to be fitted into the trap mounting flange 234 by engaging with the convex portion 236 on the inner peripheral surface of the trap mounting flange 234.

  Below the hair catcher 237, an opening 239 is provided in the bottom plate 222, and a water guide member 240 is attached to the opening 239.

  The water guide member 240 has a large-diameter cylindrical base end annular portion 241 and a plurality (four in this embodiment) of nozzle portions 242 branched upward from the top of the base end annular portion 241. ing. As shown in FIG. 4, a flange portion 243 and a claw portion 244 are provided on the outer peripheral surface of the proximal end annular portion 241 so that the flange portion 243 and the claw portion 244 are sandwiched from above and below the edge portion of the opening 239. The water guide member 240 is detachably attached to the bottom plate 222 by engaging with.

  The water guide member 240 rises upward in the sealing cylinder 232, and the nozzle portion 242 rises to a higher level than the sealing surface in the trap chamber 220 (the level of the upper end 233 a of the inclined bottom plate 233), and the upper end of each nozzle portion 242 is It is located directly under the hair catcher 237. Each nozzle part 242 is arrange | positioned at equal intervals with respect to the center part of the hair catcher 237 in the circumferential direction. The distance in the vertical direction between the upper end of the nozzle part 242 and the lower surface of the hair catcher 237 is preferably about 0 to 20 mm, particularly about 3 to 6 mm. Each nozzle portion 242 is located below the middle between the center and the peripheral edge of the hair catcher 237.

The nozzle portion 242 is preferably configured to restrict the opening area at the upper end and increase the jet water speed. The total opening area of the upper end of each nozzle 242 is preferably 1～40Cm ² especially 3 to 10 cm ² approximately.

  Next, the operation of the drain trap 210 will be described.

  Drainage from the washing basin flows into the trap chamber 220 through the drainage basin 104 and the washing basin drainage receiving port 211, and passes through the lower side of the sealing tube 232 to the drainage pipe 106 (see FIG. 10). leak. When the outflow of the washing ground drainage stops, the sealed water remains in the trap chamber 220, and the lower end of the sealing tube 232 is submerged in the sealed water, so that the odor of the drain pipe 106 enters the bathroom from the washing ground drain receiving port 211. Backflow is prevented.

  In addition, as the bathtub drainage flows out to the drain pipe through the merge outlet 214, a negative pressure is generated in the sealed chamber 223, and the sealed water in the sealed chamber 223 is sucked out to the merge outlet 214. In some cases, the water in the bathtub drainage channel 230 sufficiently flows into the receiving chamber 220 from the water guide member 240 having a large diameter at the bottom and a plurality of branches at the top. Since the sealing water is replenished, the sealing water is prevented from running out in the sealing chamber 223.

  The drainage from the bathtub (see the bathtub 103 in FIG. 10) and the bathtub pan is the drainage of the bathtub from the respective drain outlets (the drain outlets 103a and 101a in FIG. 10), the bathroom drain inlet 212, and the bathtub pan drain inlet 213. It flows out to the drain pipe 6 through the passage 223 and the merge outlet 214. At this time, a part of the water flowing through the bathtub drainage flow path 223 flows into the water guide member 240 in the middle of the bathtub drainage flow path 223 and is ejected from the nozzle portion 242 of the water guide member 240 toward the hair catcher 237. .

  Since the squirting water is sprayed directly onto the hair catcher 237, the hair catcher 237 is purified and slime and the like are removed. Further, dust such as hair in the hair catcher 237 is peeled off from the hair catcher. Thereby, after the bathtub drainage is stopped, the dust can be picked and easily discarded. In the present invention, even when the water level in the bathtub is low, water is sprayed from the nozzle portion 242 to the hair catcher 237, whereby the hair catcher 237 is purified and dust is peeled off.

  Since a plurality of nozzle portions 242 are provided, water is uniformly ejected to the hair catcher 237, so that the entire hair catcher 237 is sufficiently washed, and dust such as hair is removed from the entire upper surface of the hair catcher 237. It will be stripped off.

  When the outflow of the bathtub drainage stops, the sealing water remains in the bathtub drainage channel 230 up to the level of the lower edge of the confluence outlet 214, so that the odor of the drainage pipe 106 is caused by the bathtub drainage inlet 212 and the bathtub pan drainage inlet 213. It is prevented from flowing back into the bathtub or bathroom.

  The above embodiment is an example of the present invention, and the present invention may have a configuration other than the above. For example, the number of nozzle portions 242 of the water guide member 240 may be more or less than four. The tip of the nozzle part 242 may be further divided into a plurality of parts, and a large number of jets may be jetted to the hair catcher 237. Further, a cap having a different opening diameter may be attached to the upper end of the nozzle portion 242 to adjust the jetting speed of the upward jetting water flow.

DESCRIPTION OF SYMBOLS 10 Drain trap 11 Washing area drain receiving port 12 Bathtub drainage receiving port 13 Joint flange 14 Merge outlet 17 Hair catcher 20 Receiving chamber 21 Peripheral wall part 22 First outlet 23 Sealed chamber 24 Second outlet 25 Housing 26 Channel formation groove 27 Partition wall 28 Channel cover 29 Bathtub drainage inlet 30 Bathtub drainage channel 31 Third outlet 41 Water guide tube (water guide member)
42 Water outlet 50 Introduction channel 60 Lid plate 102 Washing area pan 103 Bathtub 104 Drainage tank 110,210 Drainage trap 111,211 Washing area drainage inlet 112,212 Bath drainage inlet 113,213 Bathpan drainage inlet 114,214 Confluence Outlet 120, 220 Trap chamber 132, 232 Sealed cylinder 137, 237 Hair catcher 140 Water guide member main body 142 Branch pipe part 150 Nozzle body 151 Peripheral plate part 152 Notch part 153 Crown part 154 Outlet 240 Water guide member 241 Base end annular part 242 Nozzle part 243 Flange part 244 Claw part

Claims (9)

Surrounded by a substantially cylindrical peripheral wall portion with the cylindrical axis direction being substantially vertical, a receiving chamber having a wash-water drainage inlet at the top and a first outlet at the bottom;
A sealed chamber into which the peripheral wall is received and into which the outflow water from the first outlet flows;
A second outlet for allowing the overflow water from the sealed water chamber to flow out, connected to the sealed water chamber;
A merging outlet where the second outlet is continuous;
Bath drainage extending through the lower side of the receiving chamber and the sealed water chamber, having a bathtub drainage inlet at one end and a third outlet connected to the merge outlet at the other end A flow path;
A water guide member for introducing a part of the bathtub drainage into the receiving chamber from the bathtub drainage channel through the bathtub drainage inlet ;
With
The outflow water from the first outlet is in a drain trap for a bathtub and a washing place that flows into the sealed water chamber through a gap between the lower end of the peripheral wall portion and the bottom surface of the sealed water chamber.
A drain trap , wherein a plurality of the water guide members are provided , and each water guide member has a water guide tube protruding upward from the bathtub drain introduction port . Surrounded by a substantially cylindrical peripheral wall portion with the cylindrical axis direction being substantially vertical, a receiving chamber having a wash-water drainage inlet at the top and a first outlet at the bottom;
A downwardly protruding hair catcher that is installed in the receiving room and is lower toward the center;
A sealed chamber into which the peripheral wall is received and into which the outflow water from the first outlet flows;
A second outlet for allowing the overflow water from the sealed water chamber to flow out, connected to the sealed water chamber;
A merging outlet where the second outlet is continuous;
Bath drainage extending through the lower side of the receiving chamber and the sealed water chamber, having a bathtub drainage inlet at one end and a third outlet connected to the merge outlet at the other end A flow path;
A water guide member for introducing a part of the bathtub drainage from the bathtub drainage channel into the receiving chamber;
With
The outflow water from the first outlet is in a drain trap for a bathtub and a washing place that flows into the sealed water chamber through a gap between the lower end of the peripheral wall portion and the bottom surface of the sealed water chamber.
A swirling flow forming means is provided for causing the water of the water guide member to flow out from the fourth outlet in a substantially tangential direction of the receiving chamber to form a swirling flow in the receiving chamber;
A drain trap, wherein an upper portion of the water guide member is branched into a plurality at a position lower than the fourth outlet . 2. The drainage trap according to claim 1 , further comprising a swirl flow forming means for causing water to flow out from the water introduction member in a substantially tangential direction of the receiving chamber to form a swirling flow in the receiving chamber.   2. The drainage trap according to claim 1, wherein two water guide members are disposed on opposite sides of the shaft center of the receiving chamber.   3. The drain trap according to claim 2, wherein an upper portion of the water guide member is branched into two parts and arranged on opposite sides of the shaft center of the receiving chamber.   The drain trap according to any one of claims 1 to 5, wherein the water guiding member is provided so as to allow the bathtub drainage to flow out to an upper portion of the receiving chamber.   The drainage according to claim 6, wherein a shelf-like portion extending in the circumferential direction for forming a swirling flow in the upper portion of the receiving chamber is provided on the inner peripheral surface of the upper portion of the peripheral wall portion. trap.   In Claim 7, The upper end part of the said water guide member protrudes upwards rather than the said shelf-like part, and the bathtub is on the said shelf-like part along the inner peripheral surface of the said surrounding wall part at the upper end part of this water guide member. A drain trap, characterized by being provided with a spout so as to allow drainage to flow out.   The drain trap according to claim 8, wherein a slope portion for guiding a swirling flow flowing above the shelf-like portion to the upper side of the water guide member is provided in the shelf-like portion.

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