JP4600336B2 - Bathroom drainage structure - Google Patents

Description

  The present invention relates to a bathroom drainage structure, and more particularly, to a bathroom drainage structure provided with a drainage trap for discharging drainage from a bathtub and drainage from a bathtub floor pan in which the bathtub is installed.

  Conventionally, drainage in bathrooms such as bathroom units includes drainage on the bathtub side, drainage from the bathtub floor pan where the bathtub is installed, and drainage on the washroom side, and any drainage is sealed with a drain trap. It is necessary to prevent backflow of odor and invasion of insects by water.

  Conventionally, drainage from the bathtub floor pan is allowed to flow through the bathtub-side drain trap section where the bathtub-side drainage flows, and a drain pipe for draining outside is connected to the washing-place drain trap section through which the wastewater from the washing area flows. It was. Then, both the drainage from the bathtub and the drainage from the bathtub floor pan are drained from the bathtub side drain trap part to the drain pipe through the washing station side drain trap part, and the drainage on the washing station side is drained from the washing station side drain trap part to the drain pipe (For example, refer patent document 1). Drainage from the bathtub and drainage from the bathtub floor pan where the bathtub is installed flow into the bathtub drainage trap, and drainage from the washing floor pan flows into the washing floor drain trap. ing.

  In what is shown in this patent document 1, the washing area side drain trap part has a double cylinder structure, and the inner cylinder serves as a partition wall that prevents intrusion of odor. There is no such configuration. That is, the tub side drain trap part is composed of a trap including the flow path leading to the washing place side drain trap part, and the inner cylinder of the tub side drain trap part is from the drain from the bathtub flowing in from above and the bathtub floor pan. It was not a partition wall that prevented intrusion of odor just by separating it from the waste water. For this reason, what provided the inner cylinder similar to the washing place side drain trap part was manufactured so that a trap might be formed only in the bathtub side drain trap part.

  The inlet from which the wastewater from the bathtub flows into the bathtub-side drain trap is directly connected to the inside of the bathtub and the inlet from which the drainage from the bathtub floor pan flows is opened on the bottom of the bathtub floor pan. The inflow pipe and the flow path after inflow are formed separately, and the inner cylinder for draining the bathtub floor pan is suspended from the peripheral edge of the drainage inlet from the bathtub floor pan in the canopy section of the bathtub side drain trap section. The inside was used as a channel for draining the bathtub floor pan.

Drainage from the bathtub-side drain trap is discharged from the outlet pipe connected to the drain through a drain port formed on the wall surface of the outer cylinder. If the direction of the flow when the drainage water flowing in from the floor pan drainage inlet merges, the flow is hindered and drainage efficiency decreases.
JP 2003-56036 A

  The present invention has been invented in view of the above-described conventional problems, and the object of the present invention is to provide a bathtub-side drainage in which the inlet of the bathtub drainage and the bathtub floor pan drainage and the flow path after the inflow are separately formed. In the drainage structure of a bathroom with a trap part, the flow direction is different and the drainage efficiency is reduced when the flows flowing separately from the inflow port of the bathtub drainage and the bathtub floor pan drainage flow and flow through each flow path merge. It is an object of the present invention to provide a bathroom drainage structure that does not end up.

  In order to solve the above-described problem, the bathroom drainage structure according to claim 1 of the present invention includes a bathtub-side drain trap section 3 through which drainage from the bathtub 1 and drainage from the bathtub floor pan 21 in which the bathtub 1 is installed flow. The bathtub-side drain trap part 3 has a bottomed tubular shape and has an outer cylinder 31 having a drain outlet 30 on its wall surface, and a canopy that closes the upper opening of the outer cylinder 31. A canopy portion 32 and a sealed inner tube 33 that is suspended from the canopy portion 32 and is disposed inside the outer tube 31 and has a gap 35 formed between the lower end thereof and the outer tube bottom surface 31b. 32, a bathtub drainage inlet 32a and a bathtub floorpan drainage inlet 32b are separately formed in a portion corresponding to the inside of the sealed inner cylinder 33, and the peripheral edge of the bathtub floor pan drainage inlet 32b of the canopy 32 It is drooped more and its tip is connected to the drain 30 of the outer cylinder 31 Is characterized in that comprising providing the tub floor pan drainage inner cylinder 34 to be inserted into the outlet conduit section 6 along the outlet line 6 to be.

  By adopting such a configuration, it becomes possible to make the flow direction the same when the wastewater flowing in from the bathtub drainage inflow port 32a and the wastewater flowing in from the bathtub floor pan drainage inlet 32b merge. .

  The invention according to claim 2 of the present invention is the invention according to claim 1, wherein the portion to be inserted into the outlet pipe portion 6 of the bathtub floor pan draining inner tube 34 is formed of a flexible soft member. It is characterized by comprising.

  By setting it as such a structure, it becomes easy to insert the front-end | tip part of the inner cylinder 34 for bathtub floor pan drainage in the outlet pipe part 6 from the drain outlet 30. FIG.

  The invention according to claim 3 of the present invention is the invention according to claim 2, wherein the inner cylinder member includes the sealed inner cylinder 33 and the bathtub floor pan drainage inner cylinder 34 and is attachable to the outer cylinder 31 from above. 3 is formed.

  By setting it as such a structure, the front-end | tip part of the inner cylinder 34 for the bathtub floor pan drainage is pushed toward the drain 30 from the upper part of the bathtub floor pan 21 to the outer cylinder 31 arrange | positioned under the bathtub floor pan 21. Can be installed with.

  The present invention relates to a drainage structure of a bathroom having a bathtub-side drain trap part in which a bathtub drainage and a bathtub floor pan drainage inlet and a flow path after the inflow are separately formed, and a drainage and a bathtub flowing in from the bathtub drainage inlet It is possible to prevent the flow efficiency from being lowered by making the flow direction the same when the waste water flowing in from the inlet of the floor pan drainage is merged so that the flow is not hindered.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  1 to 8 show an embodiment of the present invention.

  The bathroom unit constituting the bathroom is provided with an entrance / exit frame having a wall panel and a door around a floor pan composed of a bathtub floor pan 21 in which the bathtub 1 is installed and a washing floor floor pan 22. A ceiling panel is arranged at the upper end of the portion surrounded by the entrance / exit frame.

  There are three types of drainage from the bathroom unit: hot water drainage from the bathtub 1, hot water drainage from the bathtub floor pan 21 where the bathtub 1 is installed, and hot water drainage from the washing floor pan 22 in the present invention. The two types of drainage traps through which these three types of drainage flow, that is, the drainage trap portion 3 through which the drainage from the bathtub 1 and the drainage from the bathtub floor pan 21 flow, and the drainage from the washing floor pan 22 flow. And a washing-side drain trap 8.

  A drainage unit is provided below the floor pan provided with the washing floor pan 22 and the bathtub floor pan 21. The drainage unit of the present embodiment is horizontally connected to the bathtub-side drain trap part 3 that receives drainage from the bathtub 1, the washing-site drain trap part 8 that receives drainage from the washing floor pan 22, and the bathtub-side drain trap part 3. The main drainage pipe line 7 is made up of.

  The bathtub-side drain trap part 3 has a bottomed cylindrical shape, and an outer cylinder 31 having a drain port 30 formed on the side wall surface thereof, a canopy part 32 that closes the upper opening of the outer cylinder 31, and a canopy part 32 In this embodiment, the canopy 32 and the sealed inner cylinder 33 are integrally formed as the inner cylinder member 5. It is formed and attached to the outer cylinder 31 via the attachment ring 4. The attachment ring 4 includes an insertion tube portion 41 that is inserted into a floor pan drainage port 23 formed on the bottom surface of the bathtub floor pan 21, and a flange portion 42 that is continuously provided outward from the upper end portion of the insertion tube portion 41. The inner cylinder member 5 includes a cylindrical sealed inner cylinder 33, a canopy part 32 formed in the upper opening of the sealed inner cylinder 33, and a bathtub floor pan draining inner cylinder 34 that is suspended from the canopy part 32 ( (To be described later).

  The outer cylinder 31 is disposed below the floor pan drain port 23 of the bathtub floor pan 21, and an outer screw 5 b provided on the outer peripheral surface of the mounting ring 4 fitted from above the floor pan drain port 23 is connected to the upper inner circumference of the outer cylinder 31. By screwing into the inner screw 31c provided on the surface 41a, the flange portion 42 of the mounting ring 4 and the flange portion connected to the upper end of the outer cylinder 31 sandwich the mouth 23a of the floor pan drainage port 23. As a result, the outer cylinder 31 is attached to the floor pan outlet 23.

  In the outer cylinder 31, the inner cylinder member 5 in which the sealing water is stored through the mounting ring 4 as described above is accommodated. Convex portions 37 having the same height projecting upward from a plurality of locations on the bottom surface 31 b of the outer cylinder 31 are projected, and the lower end of the sealed inner cylinder 33 of the inner cylinder member 5 is placed on each convex portion 37. It is like that. And the clearance gap 35 between the lower end of the sealed inner cylinder 33 and the bottom face 31b of the outer cylinder 31 is the drain port 30 (refer FIG. 2, FIG. 4) formed in the wall surface of the outer cylinder 31 of the bathtub side drain trap part 3. ) To be connected to the outlet pipe line portion 6 connected to. When the mounting ring 4 is screwed to the outer cylinder 31 with the screw parts 5 b and 31 c as described above, the inner peripheral surface 41 a of the fitting cylinder part 41 of the mounting ring 4 is the upper end of the sealed inner cylinder 33 of the inner cylinder member 5. The inner cylinder member 5 is fixed in contact with the outer peripheral surface 5a (see FIG. 7) so that the inner cylinder member 5 does not move in contact with the convex portion 37, and the inner and outer sides of the inner cylinder member 5 are completely sealed. Further, as will be described later, the outlet pipe section 6 is connected to the outlet pipe section 6 from the drain opening 30 along the outlet pipe section 6 where the tip of the bathtub floor pan draining inner cylinder 34 is connected to the drain outlet 30 of the outer cylinder 31. Inserted inside. At this time, the convex portion 37 serves as a reference for determining the sealing water height in the inner cylinder member 5 and functions to keep the sealing water height in the inner cylinder member 5 constant.

  In the canopy portion 32, a bathtub drainage inlet 32 a and a bathtub floorpan drainage inlet 32 b are separately formed in a portion corresponding to the inside of the sealed inner cylinder 33, and the bathtub floor pan of the canopy part 32 is formed. An inner cylinder 34 for tub floor pan drainage is suspended from the periphery of the drainage inlet 32b. The bathtub drainage inlet 32 a of the canopy 32 is connected to a drainage outlet (not shown) of the bathtub 1. In addition, the inflow port 32 b of the bathtub floor pan drainage of the canopy portion 32 is arranged so as to face the bottom surface 31 b of the bathtub floor pan 21. Thereby, the waste water from the bathtub 1 flows into the space in the sealed water inner cylinder 33 (however, the space in the inner cylinder 34 for bathtub floor pan drainage, the bathtub drainage flow path 38) from the bathtub drain inlet 32a. The drainage from the bathtub floor pan 21 is accumulated in the outer cylinder 31 of the bathtub-side drain trap section 3 (inside and outside of the sealed inner cylinder 33), and the drainage from the bathtub floor pan drainage is from the inlet 32b of the bathtub floor pan drainage. 34 flows into the space (tub floor pan drainage flow path 39) in the interior 34 and is stored in the outer cylinder 31.

  Furthermore, the waste water from the bathtub side drain trap part 3 is discharged to the main drain pipe line 7 via the outlet pipe part 6 connected to the drain port 30 of the outer cylinder 31 of the bathtub side drain trap part 3. It is discharged to an external drain pipe (not shown) of the building. The outlet pipe section 6 and the main drain pipe pipe 7 are connected to each other via fitting connection sections 6a and 6b that are fitted to each other as shown in FIG.

  On the other hand, the structure of the wash basin side drain trap part 8 has a double cylinder structure like the bathtub side drain trap part 3, and the corresponding parts are denoted by the same reference numerals and the description thereof is omitted, and different points are described. And the side opening 80 of the washing-side drain trap part 8 is integrally connected to an inflow part 72 provided in one side part 71 of the main drain pipe 7 of the bathtub-side drain trap part 3, The waste water flows into the inner cylinder member 5 and flows into the bathtub side drain trap part 3 through the side opening 80 of the washing place side drain trap part 8 from the communicating part at the lower end.

  Here, the sealing water of the bathtub side drain trap part 3 and the washing place side drain trap part 8 is performed by the water accumulated to a predetermined height in the outer cylinder 31. The drainage from the various places of the bathtub 1 and the bathtub floor pan 21 is temporarily accumulated in the bathtub-side drain trap part 3 and then linearly arranged from the outlet pipe part 6 to which the water overflowing the drain trap is laterally connected. The main drainage pipe 7 is drained. On the other hand, the drainage from the washing floor floor pan 22 once stays in the washing ground side drain trap section 8, and then the water overflowing the washing ground side drain trap section 8 passes from the side opening 80 of the washing ground side drain trap section 8 to the main drain line. 7 is drained into the inflow portion 72 of FIG.

  At this time, even if a large amount of drainage from the bathtub 1 side is suddenly drained into the main drainage pipe 7, the main drainage pipe 7 extends linearly in the lateral direction A. The side opening 80 is not strongly subjected to the suction action from the main drainage pipe line 7, so that the water that has sealed the washing ground side drain trap part 8 is drawn into the main drainage pipe line 7 together. The phenomenon can be eliminated, and no air inflow sound that makes the bathroom user uncomfortable is generated.

  And in this invention, the front-end | tip part of the inner cylinder 34 for bathtub floor pan drainage is inserted in this exit pipeline part 6 along the exit pipeline part 6 connected to the drain outlet 30 of the outer cylinder 31. FIG. In the present embodiment, the bathtub floor pan drain inner cylinder 34 is formed of a flexible soft member, but at least the portion inserted into the outlet pipe section 6 of the bathtub floor pan drain inner cylinder 34 is soft. What is necessary is just to form with a member.

  The bathtub floor pan drain inner cylinder 34 hangs downward from the peripheral edge of the bathtub floor pan drain inlet 32b of the canopy 32, and bends substantially at right angles toward the drain port 30 of the outer cylinder 31 in the middle. It is arranged in the state where the direction of the tip opening is along the direction of the flow in the outlet pipe section 6. In this embodiment, it is inserted into the outlet pipe section 6 from the drain port 30 and further bent at a substantially right angle.

  Thereby, the flow direction when the wastewater flowing in from the inflow port 32a of the bathtub drainage and the wastewater flowing in from the inflow port 32b of the bathtub floor pan drainage merge can be made the same so that the flow is not hindered. It becomes possible to prevent the efficiency from decreasing. Further, since the bathtub floor pan draining inner cylinder 34 is formed of a flexible soft member, the distal end portion of the bathtub floor pan draining inner cylinder 34 can be easily inserted into the outlet pipe section 6 from the drain port 30. Furthermore, since the inner cylinder member 3 as described above can be attached to the outer cylinder 31 via the attachment ring 4 from above, the outer cylinder 31 disposed below the bathtub floor pan 21 is attached to the bathtub. Attachment is possible by pushing the front end of the bathtub floor pan drain inner cylinder 34 toward the drain port 30 from above the floor pan 21.

  Moreover, in this embodiment, the bathtub side drain trap part 3 and the washing place side drain trap part 8 are arranged side by side in the lateral direction A, and the main drain pipe line 7 through which drainage discharged from the bathtub side drain trap part 3 flows is laterally disposed. It extends linearly in direction A. As a result, the entire drain trap can be reduced in size and thickness, and therefore the installation space for the entire drain trap can be easily reduced. In addition, the main drainage pipe line 7 of the bathtub side drain trap part 3 extends linearly in the lateral direction A, and the inflow in which the drainage from the washing station side drain trap part 8 is provided in one side part 71 of the main drain pipe line 7 It is made to flow from the part 72. Thereby, the resistance which prevents the flow of the waste_water | drain of a large amount of bathtub 1 side at the time of bathtub 1 drainage does not generate | occur | produce. That is, since the main drainage pipe line 7 extends linearly in the lateral direction A, the main drainage pipe line 7 does not collide violently with the inner surface of the drainage pipe line as in the conventional case, and the flow is not disturbed. Pressure loss can be reduced. Accordingly, drainage of the bathtub 1 having the largest drainage amount can be performed smoothly, and at the same time, the drainage of the bathtub 1 flows backward from the washing station side drain trap 8 to the washing floor floor pan 22 side, or flows backward to the bathtub floor pan 21 side. Can be prevented.

  Further, at the time of washing ground drainage, waste water on the washing ground side flows from one side portion 71 of the straight main drain pipe 7. At this time, the wastewater on the washing station side has a smaller drainage amount than the drainage on the bathtub 1 side, so that the wastewater flow in the main drainage pipe 7 is not greatly disturbed by the wastewater on the washing station side, and the main drainage pipe A smooth flow in the road 7 can be maintained. Accordingly, it is possible to eliminate the problem that the waste water on the washing place stagnates or the water stays in the washing place floor pan 22 temporarily. In addition, in the present embodiment, the drainage from the bathtub-side drain trap part 3 gets over the outlet pipe part 6 that is one step lower and is discharged to the main drain pipe 7 that is one step higher. Since it is reduced at the outlet pipe section 6, the flow rate of the drainage water in the main drainage pipe line 7 can be reduced. Therefore, a large collision occurs when the waste water on the washing ground side flows into the main drainage pipe line 7. It disappears, and the merging is done to Sumes. As a result, it becomes a structure which can discharge | emit the waste_water | drain of the bathtub 1 side, and the waste_water | drain of the washroom side, respectively.

  Moreover, in this embodiment, the washing place side drain trap part 8 is integrally attached to the one side part 71 of the main drain pipe line 7 of the bathtub side drain trap part 3, Thereby, the bathtub side drain trap part 3 and the washing place side drainage are attached. The trap unit 8 and the main drainage pipe line 7 are integrated to reduce the size of the drainage unit, the installation space can be reduced, the piping work is facilitated, and the workability is improved.

  Moreover, in this embodiment, in the bathtub side drain trap part 3 and the washing place side drain trap part 8, the container-shaped outer cylinder 31 opened upward is disposed below the floor pan drain port 23, and the floor pan drain port 23 The outer cylinder 31 is attached to the floor pan drainage port 23 by screwing the outer screw 5b provided on the outer peripheral surface of the mounting ring 4 fitted from above into the inner screw 31c provided on the outer cylinder 31, The inner cylinder member 5 in which the sealing water is stored is accommodated, and the lower end of the inner cylinder member 5 is placed on the convex portion 37 protruding upward from the bottom surface 31 b of the outer cylinder 31, and the inner peripheral surface 41 a of the mounting ring 4. Is brought into pressure contact with the outer peripheral surface 5 a at the upper end of the inner cylinder member 5. Here, the convex portion 37 is composed of a plurality of convex portions 37 having a constant height, and the height of the inner cylindrical member 5 is made constant by bringing the lower end of the inner cylindrical member 5 into contact with the upper surface of each convex portion 37. Yes. Therefore, the sealing water height in the inner cylinder member 5 can be determined based on the bottom of the outer cylinder 31. That is, since the height of the lower end of the inner cylinder member 5 is determined by the height of the convex portion 37 protruding from the bottom surface 31b of the outer cylinder 31, the sealing water height in the inner cylinder member 5 can always be constant. That is, regardless of the construction state of the drain trap, the sealed water height is stabilized and the numerical value of the sealed water height (50 mm or more) determined by law can be surely cleared. In addition, even when there is a large amount of drainage from the bathtub 1, it is possible to reliably prevent the wash floor side drain trap portion 8 from being sealed off, so that it is possible to suppress the generation of air inflow noise and prevent the bathroom user from feeling uncomfortable. .

  In the embodiment shown in FIG. 1, when forming the communication portion that communicates with the main drainage pipe line 7 on the lower end side of the inner cylinder member 5, the communication portions 17 are formed between the convex portions 37 that rise from the bottom of the outer cylinder 31. Of course, the present invention is not limited to this. For example, a part on the lower end side of the inner cylinder member 5 may be cut out in a hole shape to form the communication portion 17.

It is side surface sectional drawing of one Embodiment of this invention. It is a side view of a drainage unit same as the above. It is side surface sectional drawing of a drainage unit same as the above. (A) is the top view which decomposed | disassembled the drainage unit same as the above, (b) is the top view of an assembly state. It is a perspective view of a drainage unit same as the above. It is the perspective view which a partially fractured drainage unit same as the above. (A) (b) (c) is the top view, perspective view, and side view of an inner cylinder member same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 21 Bathtub floor pan 3 Bathtub side drain trap part 30 Drain outlet 31 Outer cylinder 31b Bottom surface 32 Canopy part 32a Bathtub drainage inlet 32b Bathtub floor bread drainage inlet 33 Sealed water inner pipe 34 Bathtub floor bread drainage inner cylinder 35 Gap 36 Small gap 6 Outlet pipe section

Claims (3)

  A bathroom drainage structure having a bathtub-side drain trap portion through which drainage from a bathtub and drainage from a bathtub floor pan in which the bathtub is installed flows, wherein the bathtub-side drain trap portion has a bottomed cylindrical shape. An outer cylinder having a drain outlet on its wall surface, a canopy portion that closes the upper opening of the outer cylinder, and is suspended from the canopy portion and disposed inside the outer cylinder, and between the lower end and the bottom surface of the outer cylinder A sealing water inner cylinder in which a gap is formed, and separately forming a bathtub drainage inlet and a bathtub floor pan drainage inlet in a portion corresponding to the inside of the canopy sealing inner cylinder, The inside of the bathtub floor pan drainage that is suspended from the peripheral edge of the inflow port of the bathtub floor pan drainage, and whose tip is inserted into the exit conduit along the exit conduit connected to the drain of the outer cylinder A drainage structure for a bathroom characterized by comprising a cylinder.   The bathroom drainage structure according to claim 1, wherein a portion to be inserted into the outlet pipe portion of the bathtub floor pan drainage inner cylinder is formed of a flexible soft member.   3. The bathroom drainage structure according to claim 2, wherein an inner cylinder member is provided which includes a sealed water inner cylinder and a bathtub floor pan drainage inner cylinder and is attachable to the outer cylinder from above.

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