JP5245364B2 - Bathroom drainage equipment - Google Patents

Description

  The present invention relates to a bathroom drainage device having a drainage trap, and more particularly, to a bathroom drainage device configured such that a drainage trap accepts bathtub drainage and forms a swirling flow in the trap.

Japanese Patent No. 3886055 discloses a drainage trap in which a washing ground drainage receiving port for receiving washing ground drainage is provided at an upper portion and a bathtub drainage is received from a side peripheral surface to form a swirling flow in the trap. 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.
Japanese Patent No. 3886055

  In the bathroom drainage device equipped with the swirl flow type drainage trap, if the bathtub drainage tap is opened when the bathtub water level is high, a large amount of bathtub drainage will suddenly flow into the drainage trap and overflow to the washing area. There is a risk of getting out. In the case of a swirl flow type drainage trap, the swirl flow (vortex) has a centrifugal force, the water level tends to rise along the wall of the swirl chamber, and more easily overflows than a normal drain trap.

  An object of the present invention is to provide a bathroom drainage device that reliably prevents water from overflowing into a washing place from a swirl flow type drain trap.

The bathroom drainage device according to claim 1 has a drainage trap having a bathtub drainage introduction port for receiving a bathtub drainage in a substantially tangential direction and forming a swirling flow in the trap while having a reception opening for a washroom drainage in an upper part. In the apparatus, a bypass flow path is provided that bypasses the drain trap and communicates the introduction flow path of the bathtub drainage to the drain trap and the discharge path from the drain trap, and the odor backflow prevention means is provided in the bypass path. The introduction channel communicates the drainage port of the bathtub and the bathtub drainage introduction port of the drain trap, and one end side of the bypass channel branches from the introduction channel The other end side of the bypass channel is a junction that merges with the discharge channel, and the junction is disposed at a position higher than the branch, The junction part of the bypass channel Further, a rising portion that is higher on the side of the branching portion is provided on the branching portion side, whereby a second drainage trap in which the bathtub drainage remains in the bypass channel and becomes sealed water is provided. The odor backflow prevention means is formed by the second drain trap .

Bathroom drainage device according to claim 2, Oite to claim 1, in the drain trap, the tub drainage inlet port, at different positions in the circumferential direction, characterized in that provided a plurality is there.

Bathroom drainage device according to claim 3, in claim 1 or 2, the branch portion between the introduction passage and the bypass passage, when the tub wastewater becomes larger than a predetermined value, increases the ratio diverting the bypass flow passage Bypass water amount control means is provided.

According to a fourth aspect of the present invention, there is provided the bathroom drainage device according to the third aspect , wherein the bypass channel is branched from a side surface of the tubular introduction channel, and the bypass water amount control means is provided at an inlet or in the middle of the bypass channel. It consists of the weir-shaped part formed.

The bathroom drainage device according to claim 5 is characterized in that, in claim 3 , the bypass water amount control means comprises a valve that adjusts the amount of water to the bypass flow path by changing the opening degree according to the amount of water in the bathtub drainage. To do.

  The bathroom drainage device of the present invention (Claim 1) is a bathroom drainage device provided with a swirl flow forming type drainage trap that receives washroom drainage and bathtub drainage, and is provided with a bypass flow path that bypasses the drain trap. A portion of the water can be drained by bypassing the drain trap.

  By providing this bypass flow path, it is possible to reliably prevent a situation in which the bathtub drainage excessively flows into the drain trap and overflows into the washing area. Moreover, the drainage flow rate from a bathtub can be increased, and the drainage time from a bathtub can also be shortened.

  In addition, since the odor backflow prevention means is provided in this bypass flow path, odor does not flow back from the drain pipe to the bathtub side.

In the present invention, the odor backflow prevention hand stage is constituted by a second drain trap.

As described in claim 2 , by introducing the bathtub drainage from a plurality of drain outlets having different circumferential positions to the swirl flow forming type drain trap, the swirl flow formed is strengthened (that is, the swirl flow rate is reduced). Increase).

In addition, the amount of drainage from the bathtub increases as the water level in the bathtub increases, and decreases as the water level in the bathtub decreases. According to the bathroom drainage apparatus of claim 3 , when the bathtub drainage amount is large, such as when the bathtub water level is high, overflowing from the drainage trap can be reliably prevented by increasing the bypass water amount. In addition, even when the bathtub drainage amount is reduced due to a drop in the bathtub water level, a sufficient amount of bathtub drainage can be introduced into the drain trap to form a powerful swirl flow.

As this bypass water amount control means, the weir-like portion of claim 4 is simple and suitable, but a valve whose opening degree changes according to the bathtub drainage amount of claim 5 can also be used.

  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 6 is integrally formed on the bathtub 3 side of the wash basin pan 2. A drain trap 7 is connected to the drain 6 from below.

  As shown in FIGS. 2 and 3, the inflow port 19 on the side surface of the drain trap 7 and the drain port 3 a on the bottom surface of the bathtub 3 are connected via a pipe 9 serving as an introduction channel.

  Further, on the upper surface portion of the drain trap 7, there is provided a wash basin drain inlet A (FIG. 2) through which drainage from the washing basin 2 side flows through the drain 6. A drain pipe 14 serving as a discharge flow path is connected to an outlet 20 on the side opposite to the inlet 19 of the drain trap 7.

  In this embodiment, the drainage trap 7 is connected to the pipe 25 and the inlet 23 by the drainage from the remedy circulation port receiving tray 13 that receives water leaking from the remedy circulation port provided on the side wall of the bathtub 3. Flows in through. Further, the drainage accumulated in the door drainage receiver 11 suspended from the rail on the lower surface of the entrance door 10 is configured to flow in via the door drainage pipe 12 and the inlet 22.

  The tray drainage is guided from the inlet 23 to the lower part in the drainage trap 7 through the guide member 24.

  However, these inlets 22 and 23 may be omitted, and only the bathtub drainage and the washing ground drainage may be received.

  As shown in FIG. 3, the drainage basin 6 is formed in a concave shape integrally with the washing place pan 2, and a drainage pan 8 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 7 is attached to the flange member 15 by a screwing method. A hair catcher 17 is inserted into the drain trap 7 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 thereof is positioned slightly above (for example, about 10 mm or less) the sealing surface W in the drain trap 7. 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 a swirling flow formed in the drain trap 7.

  In the lower part of the drain trap 7, the opposite side of the bathtub drainage inlet 19 is a bulging portion 7 e bulging sideways. The bulging portion 7e and the lower region of the hair catcher 17 are partitioned by a vertical plate-shaped shielding member 18 curved in an arc shape. Thereby, the part surrounding the hair catcher 17 and its lower part form a substantially cylindrical swirl flow forming chamber 7b. The lower end of the shielding member 18 is spaced slightly upward (for example, 5 to 30 mm) from the bottom surface of the drain trap 7, and passes through the space below the shielding member 18 to the swirl flow forming chamber 7b to the bulging portion 7e. Water can flow out.

  In this embodiment, the shielding member 18 has a configuration in which a plate-like body separate from the main body portion of the drain trap 7 is attached. However, the shield member 18 is integrated with the drain trap 7 together with the drain trap 7. You may shape | mold so that it may be suspended from the ceiling side.

  The inlet 19 is formed in a vertically long shape extending in the vertical direction from the bottom surface of the swirl flow forming chamber 7 b to a position higher than the lower end of the hair catcher 17. In addition, the bathtub drainage inflow port 19 is oriented in the tangential direction of the inner peripheral surface of the swirl flow forming chamber 7b.

  The bathtub drainage inlet 19 protrudes to the outside of the drain trap 7, and the pipe 9 is connected to the protruding portion.

  The outlet 20 is provided on the distal end side of the bulging portion 7 e of the drain trap 7 in the bulging direction. Of the bottom surface in the bulging portion 7 e, a sealed wall 21 is erected from the middle between the shielding member 18 and the outlet 20, and the upper end of the sealed wall 21 is a sealed surface W.

  In this embodiment, a bypass pipe 28 as a bypass flow path that bypasses the drain trap and communicates between the bathtub drain pipe 9 as the introduction flow path and the drain pipe 14 as the discharge flow path is routed. Has been. The bypass pipe 28 includes a substantially horizontal branch part 28a branched from the pipe 9, a downward slope part 28b continuous with the branch part 28a, a substantially horizontal low part 28c continuous with the downward slope part 28b, and the low part 28c. A rising portion 28d continuous with the rising portion 28d, and a joining portion 28e that extends substantially horizontally and joins the drain pipe 14 as a discharge channel. The lower portion 28 c is disposed at a level lower than the bottom surface of the drain trap 7. The portion 28b does not necessarily have a downward slope. Further, the lower portion 28 c may not be at a level lower than the bottom surface of the drain trap 7. The trap is not limited to the P or U trap, and any shape is acceptable as long as a sealed water depth of 50 mm or more is ensured in the bypass path.

  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 swirl chamber 7b of the drain trap 7 from the drain pipe 9 and the inflow port 19, and the swirl flow is generated. Form. The water level in the swirl chamber 7b gradually rises, and the hair catcher 17 or the drainage tub 6 is in a state of being submerged in the swirl flow. As a result, dust and hair adhering to the inner surface of the drainage tub 6 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 swirl chamber 7b flows into the bulging portion 7e through the space below the shielding member 18 with the assistance of centrifugal force, gets over the sealing wall 21 and drains. It flows out to the pipe 14.

  On the other hand, a part of the bathtub drainage flows out directly from the pipe 9 to the drain pipe 14 via the bypass pipe 28. For this reason, the flow rate of the waste water flowing into the drain trap 7 is reduced as compared with the case where the bypass pipe 28 is not provided, and the overflow from the drain 6 to the washing place 2 is prevented.

  In this embodiment, as shown in FIG. 4, since the branch portion 28a of the bypass pipe 28 is provided so as to branch from the straight tubular pipe 9 to the side, when the bathtub drainage flow rate becomes small. The ratio of the amount of water flowing into the bypass pipe 28 decreases, and the bathtub drainage mainly flows straight through the pipe 9 and flows into the drain trap 7, and a strong swirl flow is formed in the drain trap 7 for a long time.

  When all the water flows out of the bathtub, the swirling flow stops, and the sealing water at the upper end level of the sealing wall 21 remains in the drain trap 7. Further, in the bypass pipe 28, water remains in the lower portion 28c, the descending slope portion 28b and the rising portion 28d in the vicinity thereof, and becomes sealed water.

  Thereby, both the drain pipe 14 side and the washing place and the bathtub 3 side are isolated by the sealed water, and the odor of the drain pipe 14 is prevented from flowing back to the washing place and the bathtub 3.

[Branch water adjustment mechanism]
In the present invention, in order to control the amount of water diverted from the pipe 9 to the bypass pipe 28, a branch water amount adjusting mechanism shown in FIG. 5 or 6 may be adopted.

  5 (a) to 5 (c) is a structure in which the weir 28h is raised from the lower edge of the opening facing the branching portion 28a provided on the side surface of the pipe 9 to the middle of the opening. .

  5 (a) is a perspective view of the pipe 9 and the branching portion 28c, FIG. 5 (b) is a sectional view taken along the line BB of FIG. 5 (a), and FIG. It is CC sectional view taken on the line of FIG.

  By providing the weir 28h, when the amount of drainage from the bathtub is small and the water level in the pipe 9 is lower than the height of the weir 28h, the bathtub drainage flows only toward the drain trap 7. On the other hand, when the bathtub drainage amount is large and the water level in the pipe 9 is higher than the height of the weir 28h, part of the bathtub drainage passes over the weir 28h and flows to the bypass pipe 28.

  In FIG. 6, a valve 29 is provided at the inlet of the bypass pipe 28 as a branch water amount adjusting mechanism. The valve 29 has a plate shape, and a side portion on the drain trap 7 side is rotatably attached to a corner portion of a joint portion between the pipe 9 and the bypass pipe 28 by a hinge 29. A tension coil spring 29 a is installed between the side of the valve 29 on the bathtub side and the corner of the joint between the pipe 9 and the bypass pipe 28.

  When the bathtub drainage amount is small, as shown in FIG. 6A, the valve 29 is closed or has a small opening, and all or most of the bathtub drainage flows into the drain trap 7. When the bathtub drainage amount increases, the valve 29 pushed by the water force opens so as to stretch the coil spring 29 a, and a part of the bathtub drainage is diverted to the bypass pipe 28. As the flow rate of the bathtub drainage increases, the opening degree of the valve 28 increases and the partial flow rate increases, and the proportion of the partial flow rate branched to the bypass pipe 28 in the bathtub drainage increases. The length of the spring 29a is such that it stops near the axial center of the pipe 9 as shown in FIG. 6 (b) at the tip of the valve 29, no matter how much the bathtub drainage is increased.

  In the present invention, the drain trap increases the amount of drainage inflow or increases the swirling flow rate by allowing the bathtub drainage to flow in approximately tangential directions from two or more inlets that are arranged differently in the circumferential direction. You may comprise so that.

[Configuration example of drain trap with two inlets]
FIG. 7 is a plan view showing an example of a drain trap provided with two inflow ports, and FIG. 8 is a sectional perspective view taken along line VIII-VIII in FIG.

  In the drain trap 30, the bathtub drainage is introduced into the annular water channel 41 from the introduction port 40, and flows out into the swirl chamber 50 from the two inlets 42 and 43 in a substantially tangential direction, and then swirls. It is comprised so that it may discharge | emit from the discharge port 70 through this.

  The swirl chamber 50 has a cylindrical chamber wall 51 with the cylinder axis direction as the vertical direction, an inner wall 52 that circulates along the inner periphery of the lower portion of the chamber wall 51, and a diameter-reducing direction extending from the lower end of the chamber wall 51. It has a ring-shaped bottom surface portion 53 to be taken out, and a water sealing tube portion 54 protruding downward from the inner peripheral edge of the bottom surface portion 54. The lower end of the inner wall 52 is continuous with the bottom surface portion 53.

  The annular water channel 41 is surrounded by the chamber wall 51, the inner wall 52 and the bottom surface portion 53, and circulates around the chamber wall 51.

  Each of the inflow ports 42 and 43 has a configuration in which the inner wall 52 is cut out. Each inflow port 42, 43 extends in the circumferential direction of the swirl chamber 50.

  The introduction port 40 has a short tubular shape that extends in a tangential direction with respect to the annular water channel 41.

  The sealed water cylinder portion 54 is coaxial with the chamber wall 51. A part of the sealed water cylinder portion 54 is common with the peripheral wall 61 of the sealed water chamber 60.

  A space for allowing water to flow out is provided between the lower end of the sealed water cylinder portion 54 and the bottom surface 62 of the sealed water chamber 60.

  A part of the bottom surface 62 of the sealed water chamber 60 is an inclined surface 62a that becomes higher as the distance from the sealed cylinder portion 54 increases, and a standing wall portion 64 is provided upright from the end of the inclined surface 62a. A short tubular discharge port 70 is connected to the standing wall portion 64. The lowest part of the inner surface of the discharge port 70 is positioned higher than the bottom surface portion 53 of the swirl chamber 50.

  In addition, a bowl-shaped flange 56 that extends outward from the upper edge of the swirl chamber 50 is provided.

  The drain trap 30 is attached to the drainage basin from the lower side using the flange 56 as in the embodiment shown in FIGS. Then, a pipe 9 for introducing bathtub drainage (not shown in FIGS. 7 and 8) is connected to the inlet 40, and a drain pipe 14 (same as above) is connected to the outlet 70. Further, the hair catcher is mounted so as to be inserted into the swirl chamber 50 from above the drain trap 30.

  Also in the bathroom drainage device using the drain trap 30, a bypass pipe in which the pipe 9 and the drain pipe 14 bypass the drain trap 30 is connected.

  When the bathtub drainage flows into the drain trap 30 through the inlet 40, the water flows into the swirl chamber 50 from the annular water channel 41 and the inlets 42 and 43 to form a spiral swirl. When the water level of this swirl flow rises, the hair catcher and the drainage basin are immersed in the swirl flow, and garbage is collected in the center of the hair catcher, and the hair catcher and drainage basin are washed by the water flow. It is.

  Since water flows into the swirl chamber 50 from the two inlets 42 and 43, the flow rate is large and the swirl flow rate is also large. As a result, dust is efficiently collected at the center of the hair catcher, and cleaning of the hair catcher and the like becomes powerful.

  The water forming the spiral swirl flows out from the sealed tube 54 to the drain pipe through the sealed water chamber 60 and the discharge port 70.

  In addition, when there is much bathtub drainage amount, a part of bathtub drainage flows out into a drainage pipe via bypass piping.

  When the drainage from the bathtub stops, the sealed water remains in the lower part in the swirl chamber 50 and the sealed water chamber 60.

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

For example, the bypass pipe 28 has a so-called U-trap seal structure, but other various seal structures can be employed as odor backflow prevention means .

It is a perspective view of the bathroom provided with the bathroom drainage apparatus which concerns on embodiment. It is a perspective view of the bathroom drainage apparatus which concerns on embodiment. It is sectional drawing of the bathroom drainage apparatus which concerns on embodiment. It is the IV-IV sectional view taken on the line of FIG. It is explanatory drawing of the adjustment mechanism of a bypass water amount. It is explanatory drawing of another adjustment mechanism of bypass water quantity. It is a top view which shows another example of a drain trap. It is a cross-sectional perspective view which follows the VIII-VIII line of FIG.

Explanation of symbols

3 Bath 7, 30 Drain trap 7b, 50 Swirling chamber 14 Drain pipe 17 Hair catcher 19, 40 Inlet 20, 70 Outlet 28 Bypass piping 28h Weir 29 Valve 29a Spring

Claims (5)

In the bathroom drainage apparatus having a drainage trap having a bathtub drainage introduction port that has a washroom drainage receiving port at the top and receives a bathtub drainage in a substantially tangential direction to form a swirling flow in the trap,
A bypass channel is provided that bypasses the drain trap and communicates the introduction channel of the bathtub drain to the drain trap and the discharge channel from the drain trap,
Odor backflow prevention means is provided in the bypass flow path ,
The introduction flow path communicates the drain outlet of the bathtub and the bathtub drain introduction inlet of the drain trap,
One end side of the bypass flow path is a branch portion that branches from the introduction flow path, and the other end side of the bypass flow path is a merging portion that merges with the discharge flow path.
The joining portion is disposed at a position higher than the branch portion,
A rising portion that is higher on the side of the merging portion than the merging portion of the bypass channel is provided on the branching portion side.
Thereby, in the bypass flow path, a second drain trap is formed in which the bathtub drain remains and becomes sealed water,
The bathroom drainage apparatus characterized in that the odor backflow prevention means is constituted by the second drain trap . Oite to claim 1, in the drain trap, the tub drainage inlet port, at different positions in the circumferential direction, full drainage device, characterized in that provided plural. 3. The bypass water amount control means for increasing the ratio of diverting to the bypass channel when the bathtub drainage amount exceeds a predetermined value is provided at a branch portion between the introduction channel and the bypass channel. Bathroom drainage device characterized by that. In Claim 3 , the bypass channel is branched from a side surface of the tubular introduction channel,
The bathroom drainage device according to claim 1, wherein the bypass water amount control means comprises a weir-shaped portion provided at the entrance or in the middle of the bypass flow path. 4. The bathroom drainage device according to claim 3 , wherein the bypass water amount control means includes a valve whose opening degree changes according to the amount of water in the bathtub drainage and adjusts the amount of water to the bypass channel.

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