JP5021270B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap provided in a drain portion around water such as a bathroom or a basin.

  Conventionally, drainage traps for storing sealed water and blocking odors from drainage pipes are provided in drainage portions around water such as bathrooms and washbasins (see Patent Document 1). Various techniques have been proposed in order to make it difficult to cut the sealing water of the drain trap. It is known that the effect of the sealing water depth and the ratio of the cross-sectional area of the inflow side pipe and the cross-sectional area of the outflow side pipe on the trap seal breakage is large. By making the cross-sectional area of the inflow side pipe of the trap larger than the cross-sectional area of the outflow side pipe, the sealed water may be difficult to cut.

However, the above-described technique is not sufficient as a countermeasure against the seal breakage, and if a tensile force acts on the seal water from the drain pipe side by a strong suction force, the seal breakage may occur. Once the sealed water has run out, the sealed water condition will continue until the next drainage.
Japanese Utility Model Publication No. 6-20568

  The present invention has been made in view of the above-described facts, and an object of the present invention is to provide a drain trap that can be resealed even after it has become out of sealed water.

The drain trap according to claim 1 of the present invention includes an inflow portion configured with an inflow port through which drainage flows, a sealed water storage unit that stores drainage that flows in through the inflow port, and the sealed water storage unit. together they are also arranged on the downstream side, and landscape outlet outflow portion configured on the upper side than the seal water reservoir to flow out the waste water stored in the water seal reservoir, upstream of the outlet section The reserve seal water which is arranged on the side and is separated from the seal water storage portion and capable of storing the drainage, and a reserve sealant inlet configured to allow the drainage to flow into the reseal water storage portion An inflow portion and a reserve seal flow that is arranged below the reserve seal water inflow portion, is connected to the seal water storage portion, and discharges the waste water stored in the reseal water storage portion to the seal water storage portion The outlet is configured at the bottom below the lower end of the outlet. And a reserve seal water outlet portions, and a.

  The drain trap of the present invention has a sealed water storage part and a resealed water storage part. The sealed water storage part is a part for storing the sealed water configured in a normal drain trap, and the inflow part configured with the inflow port into which the drainage flows and the sealed water stored in the sealed water storage part flow out. It is arranged between the outflow part in which the outflow port is configured. On the other hand, the resealed water storage part is a storage part separated from the sealed water storage part, and is disposed upstream of the outflow part.

  At the time of drainage, drainage flows into the sealed water storage part from the inlet, and drainage flows into the resealed water storage part from the reserve sealed water inlet. And both a sealed water storage part and a resealed water storage part are satisfy | filled with waste_water | drain. Drainage is performed from the outlet through the sealed water storage part.

  When the drainage proceeds, the drainage usually stops in a state where the sealed water is stored in the sealed water storage unit. However, when the tensile force from the outflow port side is strong, it is conceivable that the sealed water in the sealed water storage part flows out of the outflow port and the sealed water runs out.

  In the present invention, drainage is stored in the resealed water storage unit, and seal water is supplied to the sealed water storage unit using this drainage. The size of the reserve seal water outlet and the flow resistance of the reserve seal water outlet are designed so that the drain water is stored in the reseal water reservoir even if the seal water flows out from the seal water reservoir to the outlet. Has been.

  In this way, in the present invention, since the drainage is supplied from the resealed water storage unit to the sealed water storage unit after the sealed water in the sealed water storage unit has run out, the drain trap automatically after the seal water has run out. Can be resealed with water.

  In addition, the reserve seal water inflow part and the reserve seal water outflow part may share the same part. That is, inflow and discharge of drainage from the same part may be performed.

  The drain trap according to claim 2 of the present invention is characterized in that the resealed water storage section is disposed at a position higher than the required sealed water level of the sealed water storage section.

  Here, the required sealing water level is a level higher than the boundary water level at which the sealing water runs out, and is a sealing water level required in consideration of loss due to the induction siphon, evaporation of the sealing water, and the like.

  According to the above configuration, the wastewater stored in the resealed water storage part flows out to the sealed water storage part at least until the water level reaches the required sealed water level, so that resealing water can be performed efficiently.

  The drain trap according to claim 3 of the present invention is characterized in that the reserve sealed water outlet has a smaller diameter than the reserve sealed water inlet.

  According to the said structure, since drainage can flow easily into a reseal water storage part, the drainage for reseal water can be ensured reliably. On the other hand, it is possible to make it difficult for the drainage from the resealed water storage part to flow out, and when the sealed water flows out from the sealed water storage part to the outlet, the drainage flows out from the resealed water storage part together. This can be suppressed.

  The drain trap according to claim 4 of the present invention is characterized in that a valve member capable of closing the reserve sealed water outlet is further provided.

  According to the said structure, the drainage for resealing water can be ensured reliably by closing a reserve sealing water outflow port with a valve member.

The drain trap according to claim 5 of the present invention further includes an elastically deformable bag-like member that is connected to the sealed water storage unit while being separated from the sealed water storage unit, and is capable of storing the drainage. It is characterized by that.

According to the above structure, when storing the waste water can be extruded shrunk the bag-like member when discharging is extended the bag-like member, the pooled drained.

  The drainage trap according to claim 6 of the present invention is characterized in that a siphon drainage system is connected downstream of the outflow port.

  In the siphon drainage system, the drainage trap according to the present invention is preferably used because there is a high possibility that the sealed water flows out of the outlet due to the suction force.

  Since this invention set it as the said structure, even if it will be in the state of running out of sealing water, it can re-seal water.

  Next, an embodiment of the drain trap of the present invention will be described in detail.

[First Embodiment]
The drain trap 10 of the present embodiment is an example in which the present invention is applied to a unit bath trap and is used in a bathroom.

  As shown in FIG. 1, the drainage trap 10 includes a bathtub drainage inflow portion 12, a washroom drainage inflow portion 14, and a trap body 20.

  The bathtub drainage inflow portion 12 includes a bathtub receiving member 12A, a connecting member 12B, and a packing 12C. 12 A of bathtub receiving members are made into cyclic | annular form, and the upper part is open | released to the bathtub side. The connecting member 12 </ b> B is a cylindrical tube bent at approximately 90 ° C., the bathtub receiving member 12 </ b> A is fitted on one end side, and the other end side is connected to a connecting portion 23 described later of the trap body 20. The packing 12C is disposed between the bathtub receiving member 12A and the connecting member 12B.

  The trap body 20 has a substantially bottomed cylindrical shape, a sealed water storage portion 22 having a bottom portion on the lower side, and a cylindrical portion 21 having a larger diameter than the sealed water storage portion 22 on the upper side. A cylindrical connecting part 23 is formed on the side surface of the sealed water storage part 22 so as to communicate with the inside of the sealed water storage part 22, and the connecting part 23 is connected to the connection member 12B. A cylindrical outflow portion 24 is formed on the side surface of the cylindrical portion 21 so as to communicate with the inside of the cylindrical portion 21. On the upper side of the cylindrical portion 21, a female screw portion 25 is formed radially inward from the outer periphery of the cylindrical portion 21.

  The outflow part 24 has a drainage outlet 24 </ b> A on the upper side of the sealed water storage part 22, and the sealed water storage part 22 can store drainage up to the upper end of the sealed water storage part 22. The outflow part 24 is connected to a drain pipe (not shown).

  The washing ground drainage inflow portion 14 includes an inner cylinder 15, a mounting flange 16, a eye plate 18, and a packing 17. The inner cylinder 15 includes a cylindrical side wall 15A and a flange portion 15B. The outer diameter of the side wall 15 </ b> A is a diameter that can be inserted inside the sealed water storage portion 22, and is inserted inside the sealed water storage portion 22. The tip of the inserted inner cylinder 15 and the bottom of the sealed water storage part 22 are separated from each other, and a gap S for drainage is formed. The collar portion 15B is disposed on the washing area side and is attached to a mounting flange 16 described later. The inner cylinder 15 divides the inside of the sealed water storage portion 22 into an inner side and an outer side in the radial direction, and the washing area side and the outlet 24 </ b> A side are communicated only by the gap S.

  The mounting flange 16 is annular and includes a mounting portion 16A and a flange portion 16B. A male screw that is screwed with the female screw portion 25 is formed on the outer surface of the mounting portion 16A, and is attached to the cylindrical portion 21 by being screwed with the female screw portion 25. The mounting portion 16A is an upper portion of the trap body 20. Placed in. A packing 17 is disposed between the cylindrical portion 21 and the mounting flange 16. An engagement portion 16C that is engaged with the flange portion 15B of the inner cylinder 15 is formed on the inner wall of the attachment portion 16A. The engagement portion 16 </ b> C and the flange portion 15 </ b> B are engaged, and the inner cylinder 15 is attached to the trap body 20.

  A pair of upper and lower ribs 16D is formed above the engaging portion 16C on the inner wall of the mounting portion 16A. A disc-shaped eye plate 18 is engaged between the ribs 16 </ b> D, and the opening of the washing place is covered by the eye plate 18. The eye plate 18 has a dust receiving recess 18A.

  Waste water from the washing area flows into the sealed water storage part 22 through the eye plate 18 and the inner cylinder 15. Waste water overflowing from the sealed water storage unit 22 flows out from the outlet 24A. The gap S between the tip of the inner cylinder 15 and the bottom of the sealed water storage unit 22 is closed by the sealed water stored in the sealed water storage unit 22, so that the odor from the outlet 24 </ b> A side can be removed from the bathroom. Is prevented from being discharged.

  Here, the level of the sealed water obtained in consideration of the loss due to the induction siphon, evaporation of the sealed water, etc. at a position higher than the boundary level H at which the gap S is in the closed state is defined as a required sealed water level Y. The required sealed water level Y in this embodiment is a position slightly higher than the height of the tip of the inner cylinder 15. In addition, about the required water level Y, although it changes with kinds etc. of a drain trap, in Japanese standard, it is about 50 mm-100 mm. The drain trap is closed when the water level is lower than the boundary level H.

  A resealed water storage section 30 is provided at a position higher than the required sealed water level Y outside the side surface of the trap body 20. The resealed water storage unit 30 is hollow and can store drainage therein. A reserve seal water inflow portion 32 that constitutes a reserve seal water inflow port 32 </ b> A communicating with the inside of the connecting portion 23 is provided at an upper portion of the reseal water storage portion 30. The resealed water storage unit 30 is provided with a reserve sealed water outflow part 34 connected to the sealed water storage part 22 via the connection part 23. The reserve seal water outflow part 34 causes the drainage to flow out from the reserve seal water outlet 34 </ b> A at the bottom of the reseal water storage part 30 to the seal water storage part 22. The reserve sealed water outlet 34A is smaller than the reserved sealed water inlet 32A. Furthermore, even if a tensile force acts on the sealed water F and the sealed water F flows out of the outlet 24A from the sealed water storage section 22, The resealed water storage unit 30 has a sufficiently small diameter so that the drainage is stored.

  Next, resealing water in this embodiment will be described.

  Normally, the water level of the sealed water F is near the upper end of the sealed water storage unit 22 as shown in FIG. When there is drainage from the bathtub side or the washing place, or both, drainage flows from the bathtub drainage inflow part 12 and the washing place drainage inflow part 14 into the sealed water storage part 22, and as shown in FIG. The entire body 20, the connecting member 12 </ b> B, and the resealed water storage unit 30 are filled with drainage. The drainage is discharged through the gap S from the outlet 24A to a drain pipe (not shown).

  When drainage from the tub side and the washing area stops, the water level drops as shown in FIG. On the other hand, drainage continues from the outlet 24A. And as shown in FIG.2 (C), the sealing water F may flow out from the sealing water storage part 22, and the sealing water may run out by the tensile force from the drain pipe side. At this time, sufficient water is left in the resealed water storage unit 30 to reseal the sealed water storage unit 22.

  Even after the outflow from the outlet 24A is stopped, as shown in FIG. 3D, the outflow of drainage continues from the resealed water storage unit 30, and as shown in FIG. 3E, the sealed water storage unit 22 Is filled with the sealing water F to a level higher than the required sealing water level Y and resealed.

  According to the present embodiment, since the drainage water is stored in the resealed water storage unit 30 even after the sealed water storage unit 22 has run out of the sealed water, the sealed water storage unit 22 is resealed by this drainage. be able to.

  In the present embodiment, the resealable water reservoir 30 is provided only on the outside of the trap body 20, but as shown in FIG. 4, the resealable water reservoir having the same configuration on the bathtub drainage inflow portion 12 side. 36 may be provided. Drainage flows into the resealed water storage section 36 from the reserve sealed water inlet 36A, and drainage flows out from the reserve sealed water outlet 36B.

  Moreover, as shown in FIG. 5, you may provide the valve member 35 which can close the exit 34D of the reserve seal water outflow part 34. As shown in FIG. The valve member 35 is normally disposed at an open position P1 that opens the outlet 34D as shown in FIG. 5A, and when the drainage is full, the outlet 34D is opened by a water flow as shown in FIG. 5B. It arrange | positions in the obstruction | occlusion position P2 to close. Since the outlet 34 </ b> D is blocked by the valve member 35, the waste water in the resealed water storage unit 30 is stored without being discharged. And if the water level of drainage falls, the valve member 35 will move to the open position P1 again, as shown in FIG.5 (C). At this time, even if the sealed water is exhausted, the sealed water storage unit 22 can be resealed by draining the drainage stored in the resealing water storage unit 30 from the outlet 34D.

  Thus, by providing the valve member 35, the outflow timing of the wastewater stored in the resealed water storage unit 30 can be delayed, and the sealed water storage unit 22 can be resealed more reliably.

  Moreover, as shown in FIG. 6, even if it forms openings in walls such as the sealed water storage part 20 and the communication member 12B, and a bag-like bag storage part 37 made of an elastically deformable rubber film or the like is connected, Good. FIG. 6 shows an example in which the bag storage part 37 is connected to the connection part 23 of the sealed water storage part 20 of the communication member 12B. The bag storage unit 37 is normally in a contracted state V1 as shown in FIG. 6A, but when the drainage is full, the bag storage unit 37 is caused by a water flow as shown in FIG. 6B. The drainage flows into the bag storage part 37, and the bag storage part 37 expands and becomes inflated state V2, and the drainage is stored. Then, when the water level of the waste water is lowered, the waste water stored inside is pushed out by the restoring force of the bag storage part 37 as shown in FIG. Even if the sealed water storage unit 22 is out of the sealed water, the sealed water can be resealed by the discharged waste water.

  Thus, by storing the drainage for resealing water in the elastically deformable bag storage portion 37, the installation position does not need to be higher than the required sealing water level Y, and the design of the drain trap is free. The degree is secured.

  In addition, in FIG. 6, although the example in which both the bag storage part 37 and the resealing water storage part 30 are provided is shown, the drain trap of this invention is comprised as a structure of only the bag storage part 37. You can also.

[Second Embodiment]
Next, a second embodiment as a general example will be described. In this embodiment, an example in which the present invention is applied to a trap trap will be described.

  As shown in FIG. 7, the drain trap 40 includes a cylinder main body 42, a flange 44, an outflow portion 46, a flange portion 48, an eye plate 49, and a resealed water storage portion 50.

  The cylinder main body 42 has a bottomed cylindrical shape, and an outflow portion 46 is erected at the center of the bottom so as to penetrate the bottom. The outflow part 46 is cylindrical, and the lower side is connected to a drain pipe (not shown). An outflow port 46A is formed at the upper end of the outflow portion 46, and drainage flows out from the outflow port 46A. Normally, the sealing water F is stored at a height from the bottom of the cylinder body 42 to the outlet 46A.

  On the upper part of the outflow portion 46, a flange 44 is placed so as to be separated from the outflow port 46A by a predetermined distance via the support plate 44A. A gap S2 is formed between the flange 44 and the outlet 46A. In the present embodiment, the position slightly higher than the lower end H2 of the flange 44 is the required water level Y2.

  The flange portion 48 is annular and has a flange portion. As for the flange part 48, the collar part is engaged with the upper end of the cylinder main body 42, and is arrange | positioned above the cylinder main body. The eye plate 49 has a disc shape, and drainage holes are formed so that drainage can pass therethrough. The eye plate 49 is engaged with the flange portion 48 and disposed at the drainage inlet portion.

  In the present embodiment, the sealed water storage portion is configured by the storage portion of the sealed water F of the cylinder main body 42, and the inflow portion is configured by the upper portion of the sealed water storage portion and the flange portion 48.

  On the outside of the side surface of the cylinder main body 42, a resealed water storage section 50 is provided at a position higher than the required sealed water level Y2. The resealed water storage unit 50 is separated from the inside of the cylinder main body 42 and can store drainage in the resealed water storage unit 50. The cylinder main body 42 and the resealable water reservoir 50 are communicated with each other by an upper reserve seal water inlet 52A and a lower reserve seal water outlet 52B. The reserve sealed water outlet 52B is smaller than the reserved sealed water inlet 52A. Furthermore, even if a tensile force acts on the sealed water F and the sealed water F flows out from the outlet 46A, the reserved sealed water outlet 52B The diameter is sufficiently small so that the drainage is stored.

  According to the drain trap 40 of the present embodiment, even after the sealing water F flows out from the outlet 46A due to the pulling force from the drain pipe side and the sealing water runs out, the resealed water storage unit 50 includes the cylinder main body. Sufficient drainage is left to reseal 42. Therefore, the cylinder main body 42 is filled with the amount of sealed water F that is higher than the required sealed water level Y2 by the supply of the sealed water F from the resealed water storage unit 50.

  In this way, the drain trap 40 can be re-sealed after the water seal has once run out.

[Third Embodiment]
Next, a third embodiment as another general example will be described. In this embodiment, an example in which the present invention is applied to an S-type trap will be described.

  As shown in FIG. 8, the drain trap 60 includes an S-shaped tube 62 and a resealed water reservoir 70. The S-shaped pipe 62 includes an inflow portion 62A, a bottom portion 62B, a top portion 62C, and an outflow portion 62D in order from the upstream side of the drainage. The sealed water F is stored in the bottom 62B. In the present embodiment, the required water level Y3 is a position slightly higher than the lowest cylinder portion upper end H3 of the bottom 62B.

  In this embodiment, the resealed water storage part 70 is provided between the inflow part 62A and the bottom part 62B of the S-shaped tube 62. The resealed water storage unit 70 is separated from the S-shaped tube 62 and can store drainage in the resealed water storage unit 70. The S-shaped tube 62 and the re-sealed water reservoir 70 are communicated with each other by an upper reserve sealed water inlet 72A and a lower reserved sealed water outlet 72B. The reserve sealed water outlet 72B is smaller than the reserved sealed water inlet 72A. Furthermore, even if a tensile force acts on the sealed water F and the sealed water F flows out from the outflow portion 62D, Has a sufficiently small diameter so that the wastewater is stored.

  According to the drain trap 60 of the present embodiment, the bottom 62B is resealed in the reseal water reservoir 70 even after the seal water F has flowed out due to the pulling force from the drain pipe side and the seal has run out. There is enough drainage to do. Therefore, the supply of the sealing water F from the resealing water storage unit 70 fills the S-shaped tube 62 with the amount of sealing water F that is higher than the required sealing water level Y3.

  In this way, the drain trap 60 can be re-sealed after the water seal has once run out.

  In addition, the drain trap of the said 1st-3rd embodiment can be used for a siphon drainage system. As shown in FIG. 8, the siphon drainage system includes a vertical pipe 3 that passes through each floor, a siphon drain pipe 5 that is led from the water-related equipment 2 on each floor, and a junction joint 7 that joins the siphon drain pipe 5 to the vertical pipe 3. And a drainage system in which the siphon drain pipe 5 is joined to the vertical pipe 3 by the junction joint 7 at a position lower than the floor slab S of the floor where the water-circulating device is arranged. Due to the energy of the siphon head Hs, a siphon force directed in the direction of drainage is applied to the fluid in the siphon drain pipe 5 disposed on the slab S in the horizontal direction.

  When the siphon drainage system is used, since there is a high possibility that the sealed water is sucked from the drainage trap and flows out to the drainage pipe, the drainage trap of the first to third embodiments is preferably used. be able to.

It is sectional drawing of the drain trap of 1st Embodiment. It is a figure which shows the drainage process (A)-(C) of the drain trap of 1st Embodiment. It is a figure which shows the resealing water process (D) and (E) of the drain trap of 1st Embodiment. It is sectional drawing of the modification of the drain trap of 1st Embodiment. It is a figure which shows the drainage process (A)-(C) in the modification of the drain trap of 1st Embodiment. It is a figure which shows the drainage process (A)-(C) in the other modification of the drain trap of 1st Embodiment. It is sectional drawing of the drain trap of 2nd Embodiment. It is sectional drawing of the drain trap of 3rd Embodiment. It is explanatory drawing of a siphon drainage system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Drain trap 12 Bath drainage inflow part 14 Washing area drainage inflow part 15 Inner pipe | tube 20 Trap main body 22 Sealed water storage part 21 Cylindrical part 23 Connection part 24 Outflow part 24A Outlet 30 Resealing water storage part 32 Reserve sealed water inflow part 32A Reserve Sealed water inlet 34 Reserve sealed water outlet 36 Resealed water storage part 34A Reserve sealed water outlet 36B Reserve sealed water outlet 36A Reserve sealed water inlet 40 Drain trap 42 Cylinder body 44 椀 46 Outflow part 46A Outlet 50 Resealed water storage part 52B Reserve seal water outlet 52A Reserve seal water inlet 60 Drain trap 62 S-shaped pipe 70 Reseal water reservoir

Claims (6)

An inflow portion configured with an inflow port through which wastewater flows, and
A sealed water storage section for storing drainage flowing in via the inflow port;
An outflow part that is arranged on the downstream side of the sealed water storage part and has a lateral outlet that flows out the drainage stored in the sealed water storage part above the sealed water storage part, and
A resealed water storage section that is disposed upstream of the outflow section and is separated from the sealed water storage section and capable of storing the drainage;
A reserve seal water inflow portion configured with a reserve seal water inlet for allowing the drainage to flow into the reseal water storage portion;
A reserve seal outlet that is disposed below the reserve seal water inflow section, is connected to the seal seal storage section, and discharges the drainage stored in the reseal water storage section to the seal seal storage section. A reserve sealed water outflow portion configured at the bottom below the lower end of the outlet;
Drain trap equipped with.   The drain trap according to claim 1, wherein the resealable water storage unit is disposed at a position higher than a required sealed water level of the sealed water storage unit.   The drain trap according to claim 1 or 2, wherein the reserve sealed water outlet has a smaller diameter than the reserve sealed water inlet.   The drain trap according to any one of claims 1 to 3, further comprising a valve member capable of closing the reserve sealed water outlet.   An elastically deformable bag-like member that is connected to the sealed water storage unit while being separated from the sealed water storage unit and is capable of storing the drainage, is further provided. Item 5. The drain trap according to any one of items 4 to 4. The drainage trap according to any one of claims 1 to 5, wherein a siphon drainage system is connected to a downstream side of the outlet.

Images