JP5929278B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap for a bathtub and a washing place, and more particularly to a drain trap for turning a part of a bathtub drain into a receiving room in a tangential direction.

  Patent Documents 1 to 3 describe a drain trap having a receiving chamber for receiving washroom drainage and configured to cause a part of the bathtub drainage to flow tangentially into the receiving chamber to form a swirling flow in the receiving chamber. Has been. A basket-like hair catcher with an open top is detachably attached to the washing ground drainage receiving port of the trap.

  When the bathtub drainage flows into the trap and a swirling flow is formed in the trap, the hair catcher 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, dust can be picked and thrown away, and the inner and outer surfaces of the hair catcher are immersed in the swirling flow to be purified, and the effect of removing slime and the like is achieved.

  Patent Documents 1 and 2 describe providing a bypass flow path that bypasses the receiving chamber. It is described that it extends below the receiving chamber and introduces a part of the bathtub drainage from this bypass channel into the upper portion of the receiving chamber by a water guiding member. The water guiding member is provided so as to rise vertically upward in the receiving chamber.

  In Patent Document 3, the bathtub drainage hits the outer peripheral surface of the sealing cylinder, a part of the bathtub drainage passes through the side of the sealing cylinder, and the remaining bathtub drainage is a swiveling guide chamber that is inclined upward along the outer periphery of the sealing cylinder. And flows into the sealed water bottle through the water.

JP 2011-89366 A JP 2011-226076 A JP 2009-203784 A

  In the drain traps of Patent Documents 1 and 2, since the water guide member rises vertically upward from the bypass channel, the water flow of the bathtub drainage flowing into the water guide member becomes weak, and the swirling flow velocity in the receiving chamber becomes small. There is a fear.

  In Patent Document 3, as shown in FIG. 2 of Patent Document 3, since the bathtub drainage flows toward the center of the sealing cylinder and hits the outer surface of the sealing cylinder in a frontal collision, the overall flow of the bathtub drainage becomes weak, and the drainage from the bathtub The time will be longer. Moreover, since the bathtub drainage flows into the swivel guide chamber after hitting the outer periphery of the seal tube, the water flow of the bath drainage flowing into the swirl guide chamber becomes weak, and the swirl flow velocity in the seal tube becomes small.

  The present invention provides a drain trap in which a part of bathtub drainage flows into the upper part of the receiving chamber at a high flow rate, the swirling flow rate in the receiving chamber is increased, and the bathtub draining flow rate flowing in the bypass channel is increased. For the purpose.

The drain trap according to the present invention is formed by being surrounded by a peripheral wall, and a receiving chamber into which washing ground drainage flows from an upper receiving port, a hair catcher disposed at the receiving port, and a bathtub drain provided on the peripheral wall , A bathtub drainage inflow passage communicating with the introduction port, a receiving chamber outlet provided at a lower portion of the peripheral wall, and a drain trap outlet communicating with the receiving chamber outlet. And a drain trap for a washing place, comprising a branching portion for branching the bathtub drainage from the bathtub drainage inflow channel into a first branching channel and a second branching channel, One branch flow path communicates with the introduction port, and the second branch flow path communicates with the drain trap outlet through a bypass flow path that bypasses the receiving chamber. The branch channel and the bathtub drainage inflow channel are: Extends substantially tangential to the receiving chamber, the bypass passage is characterized in that it extends through the outer portion of the peripheral wall of the receiving chamber.

  It is preferable that the first branch channel extends upward after branching from the second branch channel and communicates with the introduction port.

  It is preferable that the second branch channel extends under the first branch channel after branching from the first branch channel.

  The most distal end of the branching portion on the side of the bathtub drainage inflow channel may be located at the bottom surface level of the bathtub drainage inflow channel or lower than that.

  It is preferable that the introduction port is provided so as to allow bathtub drainage to flow in the tangential direction into the receiving chamber and to form a swirling flow in the receiving chamber.

  It is preferable that the branch portion is detachable from the receiving chamber.

  In the present invention, the downstream end of the bypass flow path may gradually decrease in opening cross-sectional area, or may protrude into the drain trap outlet and be directed to the drain trap outlet.

  In the drainage trap of the present invention, the bathtub drainage that has flowed toward the receiving chamber via the bathtub drainage inflow channel is divided into the first branch channel and the second branch channel by the branch part, Bathtub drainage that is diverted to the first branch channel is caused to flow into the receiving chamber. Since the first branch channel and the bathtub drainage inflow channel extend in a substantially tangential direction with respect to the receiving chamber, the bathtub drainage flows into the receiving chamber at a high flow rate. As a result, a swirling flow having a high flow velocity is formed in the receiving chamber.

  After the first branch channel is branched from the second branch channel, the inlet port is arranged at the upper part of the peripheral wall of the receiving chamber so as to be close to the upper hair catcher in the receiving chamber. Since a strong swirl flow is formed, the swirl flow is more effective for the hair catcher.

  By arranging the second branch channel below the first branch channel, the first branch channel can be arranged at a relatively high level, and the bathtub drainage inflow channel is also arranged at a high level. be able to. In this case, it is possible to increase the amount of water diverted from the inflow channel to the first branch channel by providing the tip of the branch part closest to the bathtub drainage inflow channel at a level below the lower surface of the inflow channel. it can.

  By making the branching part detachable from the receiving chamber side, it becomes possible to perform maintenance of the branching part and the bypass channel.

  The drain flow velocity from the drain trap outlet is such that the lower end side of the bypass channel gradually decreases in opening cross-sectional area or protrudes into the drain trap outlet and faces the end of the drain trap outlet. Becomes larger. Moreover, the backflow to the bypass flow path side is also prevented.

It is a top view of the drain trap concerning an embodiment. It is a side view of the longitudinal direction 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 a cross-sectional perspective view of the drain trap of FIG. It is a cross-sectional perspective view of the drain trap seen from the opposite direction to FIG. It is a section exploded perspective view of the drain trap concerning an embodiment. It is the VIII-VIII sectional view taken on the line of FIG. 7 in the state which mounted | wore with the plate. It is a section perspective view of the drain trap concerning another embodiment. It is a section perspective view of the drain trap concerning another embodiment. It is sectional drawing of the drain trap which concerns on different embodiment. It is sectional drawing of the drain trap which concerns on different embodiment.

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

<First Embodiment>
1 to 8 show a first embodiment. As shown in FIGS. 1 and 2, a wash basin drain receiving a waste water from a wash basin is disposed on the upper surface of the drain trap 10 in the longitudinal direction. An inlet 11 is provided. A hair catcher 37 is detachably attached to the receiving port 11. On the upper surface of one end in the longitudinal direction of the drain trap 10, a bathtub drain inlet 12 through which drainage from the bathtub flows is provided, and in the vicinity thereof, a release wire insertion port 13 for operating the bathtub drain plug device is provided. ing. The bathtub drainage and the bathtub pan drainage flow into the main body inlet 16 (FIGS. 3 and 5 and the like) through a straight tubular bathtub drainage inflow pipe 14 as a bathtub drainage inflow channel.

  On the other end side of the drain trap 10, a drain trap outlet 31 from which water from the sealed water chamber 30 (FIGS. 4, 6 and the like) flows out is provided. A drain pipe is connected to the drain trap outlet 31.

  As shown in FIGS. 3 to 8, in the drain trap 10, a receiving chamber 20 is provided below the washing place drain receiving port 11. The receiving chamber 20 is surrounded by a cylindrical peripheral wall 21. A part of the peripheral wall 21 is composed of a plate 21P that can be attached and detached in the vertical direction.

  As clearly shown in FIGS. 7 and 8, the plate 21 </ b> P is an arcuate curved plate having a shape in which a part of the cylindrical peripheral wall 21 is cut in the vertical direction, and mounting ridges 21 b extend in the vertical direction on both sides thereof. It is installed. The peripheral wall 21 is provided with a concave strip 21a with which the convex strip 21b is engaged. The plate 21 </ b> P is attached to the peripheral wall 21 from above the peripheral wall 21 so that the ridges 21 b are fitted into the dents 21 a.

  An inlet 22 extending in the circumferential direction is provided on the upper portion of the plate 21P. A plate-shaped knob 23 extending horizontally along the lower edge of the inlet 22 is provided. The standing height of the knob 23 from the plate 21P (height toward the center of the receiving chamber 20) is small at both ends of the introduction port 22 in the horizontal direction and is the largest near the middle thereof, but is not limited thereto. .

  As clearly shown in FIG. 5, in this embodiment, a bypass channel 40 that bypasses the receiving chamber 20 and communicates the main body inlet 16 and the drain trap outlet 31 is provided. The bypass channel 40 extends through a part of the outer peripheral wall 21. A branch portion 42 is installed at the inflow portion of the bypass channel 40 so as to face the main body inlet 16, and the bathtub drainage that has passed through the main body inlet 16 is divided into two upper and lower branch channels 40 a and 40 b. It is branched. The upper first branch flow path 40 a gradually rises and reaches the inlet 22.

  The lower second branch flow path 40b extends through the lower side of the branch portion 42 and joins in the vicinity of the drain trap outlet 31 via the bypass ascending portion 40c and the junction 40d. As shown in FIG. 4, the outflow direction of water from the junction 40d is oblique to the outlet 31 with respect to the straight line connecting the sealed chamber 30 and the outlet 31, and from the junction 40d. The effluent water is easy to flow toward the outlet 40d.

  The branch part 42 is removable from the inside of the receiving chamber 20 by removing the plate 21P. When the plate 21P and the branching portion 42 are removed, maintenance in the vicinity of the bypass channel 40 and the inlet 16 can be performed.

  As shown in FIG. 1, the first branch flow path 40 a and the straight tubular bathtub drainage inflow pipe 14 extend in a substantially tangential direction with respect to the peripheral wall 21 of the receiving chamber 20 in a state in which the drain trap 10 is viewed in plan. Yes. In addition, it is preferable that the extension line of the tube axis line of the bathtub drainage inflow pipe 14 is in contact with the outer peripheral surface of the peripheral wall 21 or the distance between the extension line and the outer peripheral surface of the peripheral wall 21 is 40 mm or less.

  As shown in FIGS. 6 and 7, on the drain trap outlet 31 side of the peripheral wall 21, a receiving chamber discharge port 28 is provided between the lower end of the peripheral wall 21 and the bottom surface of the drain trap 10. A sealed water chamber 30 is provided between the peripheral wall 21 and the drain trap outlet 31. The size of the plate 21P is larger than that of the receiving chamber discharge port 28, and the plate 21P is configured not to flow into the sealed chamber 30 even if the plate 21P is accidentally dropped into the receiving chamber 20. .

  A bank-like portion 30 a is provided on the side of the drainage trap outlet 31 of the sealed water chamber 30. The level of the top surface of the bank 30 is higher than the bottom of the sealed chamber 30 and the bottom of the drain trap outlet 31, and the sealed chamber 30 is sealed to the top level of the bank 30a. Water accumulates. The receiving chamber outlet 28 of the peripheral wall 21 is provided so as to be immersed in this sealed water.

  The junction 40d opens to the downstream side (outlet 31 side) from the bank-shaped portion 30a.

  The peripheral wall 21 is provided with an opening 26 for checking the inside of the sealed water chamber 30. The opening 26 is normally closed with a cap (not shown in FIGS. 6 and 7).

  A female screw (see FIGS. 5 to 7) is provided on the inner peripheral surface of the washing ground drainage receiving port 11, and a trap mounting flange 34 (FIGS. 1 and 2) is screwed thereon. The drain trap 10 is attached to the drainage basin by sandwiching the edge of the trap mounting opening at the bottom of the wash basin drainage basin between the upper surface portion 35 (FIG. 2) on the main body side and the flange 34. It is fixed.

  A hair catcher 37 is detachably mounted on the trap mounting flange 34 in an interleaved manner by engaging with a convex portion (not shown) of the inner peripheral surface of the trap mounting flange 34.

  In the drain trap 10 configured as described above, drainage from the washing place passes through the hair catcher 37 and flows into the receiving chamber 20. The drainage from the bathtub flows into the receiving chamber 20 through the bathtub drainage inlet 12, the bathtub drainage inflow pipe 14, the main body inlet 16, the branch channel 40a, and the inlet 22, and then swivels in the receiving chamber 20. Outflow from the receiving chamber outlet 28, the sealed chamber 30 and the drain trap outlet 31 to the drain pipe. When the outflow of washing ground drainage or bathtub drainage stops, sealed water remains in the receiving chamber 20 and the sealed water chamber 30, and the receiving chamber discharge port 28 and the bypass channel 40 are submerged in the sealed water. Is prevented from flowing back into the bathroom and bathtub.

  In this embodiment, drainage from the bathtub flows in a substantially tangential direction with respect to the peripheral wall 21 via the straight tubular bathtub drainage inflow pipe 14 and the first branch flow path 40a, and enters the receiving chamber 20 from the inlet 22. Since it flows in the tangential direction, a swirl flow is formed in the receiving chamber 20.

  In this embodiment, as shown in FIG. 1, the bathtub drainage inflow pipe 14 extends linearly in a substantially tangential direction of the receiving chamber 20, so that the bathtub drainage can flow upward without diverting its water flow. It flows into the receiving chamber 20 from the inlet 22 through 40a, and the swirl flow in the receiving chamber 20 becomes strong.

  The water level in the receiving chamber 20 rises due to the inflow of the bathtub drainage, the hair catcher 37 is immersed in the swirling flow, and dust such as hair in the hair catcher 37 is collected at the center of the hair catcher 37. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher 37 are immersed in the swirling flow to be purified, and slime and the like are removed.

  In this embodiment, as described above, in addition to the large flow velocity of the bathtub drainage into the receiving chamber 20, the inlet 22 is provided in the upper portion of the receiving chamber 20, and the plate-shaped knob 23 is provided. It extends in the circumferential direction along the lower edge of the introduction port 22. Therefore, the bathtub drainage that flows into the receiving chamber 20 from the inlet 22 is guided in the turning direction by the knob 23. For this reason, a strong swirling flow is formed in the upper part of the receiving chamber 20, that is, in the vicinity of the hair catcher 37. Thereby, the dust in the hair catcher 37 is efficiently collected near the center, and the hair catcher 37 is washed by a strong swirl flow. In addition, even when the water level of bathtub drainage is low, the swirl flow in the upper part in the receiving chamber 20 becomes sufficiently strong.

  The bathtub drainage branched from the main body inlet 16 to the lower branch passage 40 b flows out to the drain trap outlet 31 through the bypass passage 40. In the plan view of the drain trap 10 as shown in FIG. 1, the bypass flow path 40 also extends in a substantially straight line with the bathtub drainage inflow pipe 14, so the bathtub that has flowed into the bypass flow path 40 from the branch flow path 40 b. The drainage also passes through the bypass channel 40 while maintaining a high flow rate. For this reason, the water in the bathtub is discharged in a short time.

  When cleaning or inspecting the vicinity of the bypass channel 40 or the inlet 16, the hair catcher 37 is removed, a finger is inserted into the receiving chamber 20 from the receiving port 11, and the knob 23 of the plate 21 </ b> P is picked to pick up the plate 21 </ b> P. Is lifted upward and removed, and the branch portion 42 is further removed. In addition, since the knob | pick part 23 is provided, the plate 21P can be removed easily. When the removed plate 21P is remounted, the knob 23 can be gripped to easily engage the ridges 21b of the plate 21P with the ridges 21a of the peripheral wall 21 for remounting.

<Second Embodiment>
In the above embodiment, the front end (upstream end) of the branching portion 42 faces the main body inlet 16 and is located near the middle of the main body inlet 16 in the vertical direction. Thus, the tip 42t may be slightly separated from the inlet 16 and may be lowered to the lower edge level of the inlet 16 or lower. If it does in this way, the flow volume which flows into upper branch channel 40a among bathtub drainage which flows in from bathtub drainage inflow pipe 14 will increase, and the amount of inflows into receiving room 20 will increase.

  Other configurations of the embodiment of FIG. 9 are the same as those of the embodiment of FIGS. 1 to 8, and the same reference numerals denote the same parts.

[Third Embodiment]
In the present invention, the branch portion 42 may be integrated with the plate 21P. FIG. 10 shows an embodiment of such a drain trap. In FIG. 10, the branch part 42 is integrally provided in the outer peripheral surface side of the plate 21P. In such a configuration, when the plate 21P is attached / detached, the branch portion 42 is also attached / detached, so that maintenance work such as a bypass flow path becomes easy. In addition, in FIG. 10, since the small hole-shaped opening 23a is provided in the knob | pick part 23, when a fingertip is put on the knob | pick part 23 so that plate 21P may be attached or detached, a finger | toe slip is prevented.

[Fourth and fifth embodiments]
In the present invention, as shown in FIG. 11, the vicinity of the junction 40d of the bypass channel 40 may have a shape in which the opening cross-sectional area gradually decreases toward the downstream side. If it does in this way, the flow rate of the bathtub drainage which flows out from the bypass channel 40 to the drain trap outlet 31 will become large, and the bathtub drainage can be smoothly discharged in a short time. Moreover, the backflow prevention effect from the drain trap outlet 31 side to the bypass channel 40 is also exhibited. Similar effects can be obtained by projecting the confluence 40d into the drain trap outlet 31 and directing the outlet 31 as shown in FIG. In addition, according to FIG. 12, the backflow prevention effect to the bypass flow path 40 becomes still higher.

  Each of the above embodiments is an example of the present invention, and the present invention may be configured other than illustrated.

DESCRIPTION OF SYMBOLS 10 Drain trap 11 Washroom drain inlet 12 Bathtub drainage inlet 13 Bathtub drainage inlet 14 Bathtub drainage inflow pipe (tub drainage inflow channel)
16 Main Body Inlet 20 Receiving Chamber 21 Peripheral Wall 21P Plate 22 Inlet 23 Knob 23a Open 23b Hanging Wall 23c Recess 28 Receiving Chamber Outlet 30 Sealed Chamber 31 Drain Trap Outlet 34 Flange 37 Hair Catcher 40 Bypass Channel 40a, 40b Branch channel 42, 42A Branch member

Claims (7)

A reception chamber formed by being surrounded by a peripheral wall, and the washroom drainage flows from the upper reception port;
A hair catcher disposed at the entrance;
An inlet provided in the peripheral wall for allowing the bathtub drainage to flow into the receiving chamber;
A bathtub drainage inflow channel communicating with the inlet;
A receiving chamber outlet provided at a lower portion of the peripheral wall;
In a drainage trap for a bathtub and a washing place having a drainage trap outlet connected to the receiving chamber outlet,
A branch part for branching the bathtub drainage from the bathtub drainage inflow channel into the first branch channel and the second branch channel;
The first branch channel is in communication with the inlet;
The second branch flow path communicates with the drain trap outlet through a bypass flow path that bypasses the receiving chamber;
The first branch channel and the bathtub drainage inflow channel extend in a substantially tangential direction with respect to the receiving chamber ,
The drain trap , wherein the bypass channel extends through the outside of a part of the peripheral wall of the receiving chamber .   2. The drain trap according to claim 1, wherein the first branch flow channel branches upward from the second branch flow channel and then extends upward to communicate with the introduction port.   The drainage according to claim 1 or 2, wherein the second branch flow path extends below the first branch flow path after branching from the first branch flow path. trap.   4. The drain trap according to claim 3, wherein the most distal end of the branch portion on the side of the bathtub drainage inflow channel is located at a bottom surface level of the bathtub drainage inflow channel or lower than the bottom.   5. The introduction port according to claim 1, wherein the introduction port is provided so as to allow the bathtub drainage to flow in a tangential direction into the receiving chamber and to form a swirling flow in the receiving chamber. Drain trap.   The drain trap according to any one of claims 1 to 5, wherein the branch portion is detachable from the receiving chamber.   In any 1 item | term of the Claims 1 thru | or 6, The downstream end of the said bypass flow path gradually becomes small opening cross-sectional area, or protrudes in the said drain trap outflow port, It is pointing to this drain trap outflow port A featured drain trap.

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