JP5700484B2 - Urinal drain trap - Google Patents

Description

  The present invention relates to a urinal drain trap.

  FIG. 1 of Patent Document 1 discloses a conventional urinal drain trap. The urinal drain trap is formed in a cartridge form and includes a lid, a main body, and a partition. The lid has a circular shape in plan view and fits into an opening provided at the lower end of the bowl surface of the urinal. The lid portion is provided with an inflow port through which the urine that has flowed down along the bowl surface flows. The main body includes a cylindrical side wall formed to extend downward from the outer peripheral edge of the lid, a bottom formed continuously at the lower end of the side wall, and an outlet from which stored urine overflows. have. The partition wall portion extends downward from the lower surface on the inner side of the outer peripheral edge portion of the lid portion, and is formed with a space between the bottom portion. The partition wall has a cylindrical shape with an open lower end.

  The inside of the main body is partitioned by a partition wall into a first region formed outside the partition wall and a second region formed inside. The first region and the second region are communicated with each other by a third region formed below the lower end of the partition wall and above the bottom. In the first region, a seal solution that is insoluble in water and has a specific gravity lower than that of urine is injected, and a seal layer is formed above the stored urine.

  The inflow port penetrates the first region at a position where urine flows from above. The outflow port rises from the bottom of the main body in the second region and is formed at the upper end of a cylindrical outflow pipe disposed concentrically with the partition wall.

  In this urinal drain trap, the seal layer can prevent the urine odor stored in the main body from escaping from the inflow port to the outside. Moreover, the backflow of the odor from the drainage channel connected to the downstream side can be blocked by urine stored in the main body. For this reason, the urinal having the urinal drain trap can be used satisfactorily without causing odor to escape from the inflow port to the toilet room without using any washing water.

Japanese Patent No. 3515785

  However, in the conventional urinal drain trap, the outflow pipe is disposed concentrically with the partition wall, and the urine ascending flow path in the second region is constant between the outer surface of the outflow pipe and the inner surface of the partition wall. It is formed with an interval. Since urine is retained in this portion, gel-like urinary stones are likely to adhere. If the distance between the outer surface of the outflow pipe and the inner surface of the partition wall is narrow, the ascending flow path will be clogged early by the accumulation of gel-like urine that adheres to the outer surface of the outflow pipe and the inner surface of the partition wall. There is a risk that.

  This invention is made | formed in view of the said conventional situation, Comprising: It is set as the problem which should be solved to provide the drainage trap for urinals which can discharge | emit urine well over a long period of time.

The urinal drain trap of the present invention is fitted into an opening provided at the lower end of the bowl surface of the urinal, and has a lid portion having an inlet into which urine flowing down along the bowl surface flows,
A main body having a side wall formed extending downward from the outer peripheral edge of the lid, a bottom formed continuously at the lower end of the side wall, and an outlet through which stored urine overflows ,
A hollow partition wall provided inside the outer peripheral edge of the lid, extending downward from the closed upper end, and having a space between the bottom of the main body and opened at the lower end;
The inside of the main body is partitioned by the partition wall into a first region formed outside the partition wall portion and a second region formed inside, and the first region and the second region are the partition wall portion. Are communicated by a third region formed below the lower end and above the bottom,
The first region is a urinal drain trap that is insoluble in water, has a specific gravity lighter than urine, and is injected with a sealing liquid that forms a sealing layer above the stored urine,
The inflow port is provided at a position where urine flows into the first region from above,
The outflow port rises from the bottom of the main body in the second region , the outer surface is in contact with the inner surface of the partition wall, and the outflow is disposed at a position biased to one side in the partition wall in a plan view. It is formed in the upper end of a pipe | tube.

  In this urinal drain trap, since the outflow pipe is disposed at a position biased to one side in the partition wall in plan view, the outer surface of the outflow pipe and the inner surface of the partition wall on the other side in the partition wall in plan view Can be widened. For this reason, even if gel-like uric stone accumulates on the outer surface of the outflow pipe and the inner surface of the partition wall, the ascending channel formed by the outer surface of the outflow pipe and the inner surface of the partition wall is blocked. Can be difficult.

  Therefore, the urinal drain trap of the present invention can discharge urine well over a long period of time.

  In the horizontal sectional view of the second region, the flow passage area of the outflow pipe is larger than the flow passage area of the ascending flow path formed by being surrounded by the outer side surface of the outflow pipe and the inner side surface of the partition wall. Can do. In this case, since the flow rate of the urine that can flow through the outflow pipe is larger than the flow rate of the urine that can flow through the ascending flow path, it is possible to prevent the inside of the outflow pipe from being filled with urine that flows from the ascending flow path. it can. For this reason, the siphon action which arises when the inside of an outflow pipe is filled with water can be prevented. That is, it is possible to prevent the urine to stay in the urinal drain trap due to the siphon action and the water seal from being broken. Moreover, even if gel-like urolith accumulates on the inner surface on the downstream side of the outflow pipe, the situation in which the inside of the outflow pipe becomes full of urine flowing from the ascending flow path can be delayed. For this reason, this urinal drain trap can be used satisfactorily for a long time.

  The partition wall portion may be formed to extend from a central portion of the main body portion toward an inner surface of the side wall portion in a horizontal sectional view. In this case, the flow passage area of the outflow pipe can be increased. For this reason, it is possible to prevent the inside of the outflow pipe from being filled with urine flowing from the ascending flow path, and to prevent the occurrence of siphon action. Further, gel-like urine stones accumulate on the inner surface on the downstream side of the outflow pipe, the flow channel area becomes narrower, and the situation where the inside of the outflow pipe is filled with urine flowing from the ascending flow path can be further delayed. Therefore, this drainage trap for urinals can be used satisfactorily for a long time.

The vertical dimension of the third region is such that the urine descending channel formed in the first region and the ascending channel formed surrounded by the outer surface of the outflow tube and the inner surface of the partition wall . It can be formed larger than the lateral dimension in the vertical center sectional view. In this case, since the size in the vertical direction can be increased in the third region where gel-like urine stones are likely to deposit, even if gel-like urine stones accumulate in the third region, the third region It is possible to prevent clogging at an early stage. For this reason, urine can be discharged well over a long period of time.

  The urinal drain trap may be formed in the form of a cartridge to which a drain pipe is connected and which is detachably attached to a recess opened upward at the lower end of the bowl surface of the urinal. In this case, the cartridge can be replaced when the sealing liquid is reduced or clogging occurs due to the accumulation of gel-like urine stones. Thus, maintenance can be performed easily. In addition, the urinal drain trap is prevented from clogging due to the accumulation of gel-like urine stones, so that the cartridge replacement frequency can be reduced.

It is sectional drawing which shows the urinal which has the drainage trap for urinals of Example 1. FIG. It is sectional drawing which shows the state in which the drain trap for urinals of Example 1 was attached to the urinal. It is a disassembled perspective view which shows the drain trap for urinals of Example 1. FIG. (A) is sectional drawing of arrow Q-Q in FIG. 2 of the drainage trap for urinals of Example 1. FIG. (B) is sectional drawing which shows the drainage trap for urinals of Example 3. FIG. It is sectional drawing which shows the drainage trap for urinals of Example 2. FIG. It is sectional drawing which shows the drainage trap for urinals of Example 4. It is a disassembled perspective view which shows the drain trap for urinals of Example 4. FIG. It is QQ sectional drawing in the arrow of FIG. 6 of the drainage trap for urinals of Example 4. FIG. It is sectional drawing which shows the drainage trap for urinals of the reference example 1 . It is QQ sectional drawing in FIG. 9 of the drainage trap for urinals of the reference example 1. FIG.

  Embodiments 1 to 5 embodying the urinal drain trap of the present invention will be described with reference to the drawings.

<Example 1>
The urinal drain trap 10 of Example 1 is formed in a cartridge shape as shown in FIG. 1 to FIG. 3 and FIG. 4A, and opens upward at the lower end of the bowl surface 2 of the urinal 1. The recess 3 is detachably attached. The urinal 1 is a wall-hanging type and is locked and fixed to the wall surface W of the toilet room R. The concave portion 3 is attached to the lower end portion of the bowl surface 2 of the urinal 1 and is formed by a cylindrical storage container 20 having an open upper end and a bottom portion.

  A locking member 21 is connected to the upper end of the storage container 20. The locking member 21 is connected to the upper inner surface of the storage container 20 and has a cylindrical cylindrical portion 21A extending upward and a ring-shaped flange portion 21B extending outward from the upper end of the cylindrical portion 21A. A locking recess 20 </ b> A is formed in an intermediate portion of the inner side surface of the storage container 20. A locking convex portion 12F provided on the side wall portion 12A of the main body portion 12 of the urinal drain trap 10 to be described later is locked to the locking concave portion 20A. By rotating the urinal drain trap 10 inserted into the storage container 20 by a predetermined angle around the axis, the locking projection 12F can be locked to the locking recess 20A. In this manner, the urinal drain trap 10 in the form of a cartridge can be detachably attached to the storage container 20.

  The storage container 20 has a packing 22 fitted on the outer surface of the locking member 21 and is inserted from above into an opening 2A formed at the lower end of the bowl surface 2 of the urinal 1. The flange portion 21B of the locking member 21 is locked to the upper surface of the peripheral edge portion of the opening 2A. A ring-shaped fastening member 23 that is externally fitted from the lower side of the storage container 20 and whose upper surface engages with the lower surface of the peripheral edge of the opening 2A is screwed into the screw portion formed on the upper portion of the outer surface of the storage container 20. Yes. Thus, the storage container 20 is attached to the opening 2A by sandwiching the peripheral edge portion of the opening 2A by the flange portion 21B of the locking member 21 and the fastening member 23. The storage container 20 has a connecting tube 24 extending from the lower end corner. The storage container 20 is connected to the drain pipe 4 drawn to the wall surface W through the connecting pipe 24.

  The urinal drain trap 10 formed in a cartridge form includes a lid portion 11, a main body portion 12, and a partition wall portion 13. The outer shape of the lid 11 is circular. The lid 11 is fitted into an opening formed by the locking member 21 of the storage container 20, that is, an opening provided at the lower end of the bowl surface 2 of the urinal 1. A packing P is fitted in an annular recess formed on the outer peripheral end surface of the lid portion 11. For this reason, the inner surface of the opening formed by the locking member 21 and the outer surface of the lid portion 11 are joined in a watertight manner. For this reason, urine that has flowed down along the bowl surface 2 of the urinal 1 flows to the upper surface of the lid 11. The lid portion 11 has an inflow port 11A through which urine that has flowed down along the bowl surface 2 of the urinal 1 flows.

  The main body 12 has a side wall 12A, a bottom 12B, and an outlet 12C. The side wall portion 12 </ b> A has a cylindrical shape and extends downward from the outer peripheral edge portion of the lid portion 11. The outer peripheral edge portion of the lid portion 11 and the upper end portion of the side wall portion 12A are bonded without a gap. A plurality of locking projections 12F are formed at the intermediate portion of the outer surface of the side wall portion 12A. As described above, the urinal drain trap 10 in the form of a cartridge is detachably attached to the storage container 20 by the locking protrusion 12F being locked to the locking recess 20A formed on the inner surface of the storage container 20. It has been. The bottom 12B is formed continuously with the lower end of the side wall 12A.

  The partition wall portion 13 has a cylindrical shape, is provided on the inner side of the outer peripheral end portion of the lid portion 11, extends downward from the closed upper end, and has a lower end opened with a space between the bottom portion 12 </ b> B of the main body portion 12. Is. The partition wall 13 is provided coaxially with the lid 11. In the lid portion 11, an inflow port 11 </ b> A divided into a plurality along the outer surface of the partition wall portion 13 is arranged in a ring shape.

  The inside of the main body 12 is partitioned by the partition wall 13 into a first region 31 formed outside the partition wall 13 and a second region 32 formed inside. The first region 31 and the second region 32 are communicated with each other by a third region 33 formed below the lower end of the partition wall 13 and above the bottom 12B of the main body 12. The first region 31 is insoluble in water, has a specific gravity lighter than urine, and is injected with a sealing liquid that forms a sealing layer S above the stored urine.

  A ring-shaped connecting portion 14 extending in the lateral direction toward the first region 31 is formed at the outer peripheral edge portion of the lower end of the partition wall portion 13. A cylindrical folded portion 15 extending upward is formed at the peripheral edge of the distal end of the connecting portion 14. The folded portion 15 has a certain distance from the partition wall portion 13. Further, the folded portion 15 is provided at a central position between the partition wall portion 13 and the side wall portion 12A. That is, the folded portion 15, the partition wall portion 13, and the main body portion 12 are arranged on the same axis. Further, the upper end of the folded portion 15 is formed to extend upward in the first region 31 to a position lower than the lower surface of the seal layer S formed above the urine stored in the main body portion 12. Further, the folded portion 15 extends to a height equal to or higher than the center height between the distal end peripheral portion of the connecting portion 14 and the upper surface of the seal layer S.

  The outflow port 12 </ b> C is formed in the second region 32 at the upper end of the outflow pipe 12 </ b> D rising from the bottom 12 </ b> B of the main body 12. In addition, the outlet 12 </ b> C opens upward from the upper end of the folded portion 15. The outflow pipe 12 </ b> D is formed in a semi-cylindrical shape, and the arc-shaped outer surface is disposed in contact with the inner surface of the partition wall 13. That is, the outflow pipe 12 </ b> D is arranged at a position biased to one side in the partition wall 13 in a plan view.

  The lower part of the outflow pipe 12D is bent in the direction of the side wall part 12A along the bottom part 12B of the main body part 12. A discharge port 12E is provided through the bottom 12B at the downstream end of the outflow pipe 12D. The urinal drain trap 10 in the form of a cartridge is attached to the storage container 20 so that the discharge port 12E is disposed at a position facing the upstream portion of the connecting pipe 24 of the storage container 20.

  The vertical dimension X of the third region 33 is the horizontal dimension of the urine descending flow path D formed in the first region 31 and the urine ascending flow path U formed in the second region in the vertical center cross section. It is formed larger than Y and Z.

  In the urinal drain trap 10 having such a configuration, the partition wall 13 is formed in a cylindrical shape, the outflow pipe 12D is formed in a semi-cylindrical shape, and the arc-shaped outer surface is disposed in contact with the inner surface of the partition wall 13. As a result, the outflow pipe 12D is arranged at a position biased to one side in the partition wall 13 in plan view. For this reason, the space | interval of the outer surface of outflow pipe 12D and the inner surface of the partition part 13 can be expanded in the other side in the partition part 13 by planar view. Therefore, even if gel-like urolith accumulates on the outer surface of the outflow pipe 12D and the inner surface of the partition wall portion 13, the upward flow formed by being surrounded by the outer surface of the outflow tube 12D and the inner surface of the partition wall portion 13 The path U can be made hard to clog.

  Therefore, the urinal drain trap 10 according to the first embodiment can discharge urine well over a long period of time.

  Moreover, the flow path cross-sectional area of the outflow pipe 12 </ b> D can be increased while increasing the distance between the outer surface of the outflow pipe 12 </ b> D and the inner side surface of the partition section 13 on the other side in the partition wall section 13 in plan view. For this reason, the flow rate of urine from the outflow pipe 12D can be sufficiently secured, and urine can be discharged well.

  Further, the vertical dimension X of the third region 33 is the lateral direction of the urine descending channel D formed in the first region 31 and the urine ascending channel U formed in the second region in the vertical center cross-sectional view. It is formed larger than the dimensions Y and Z. That is, in the third region where the gel-like urine stone is likely to be deposited, the size in the vertical direction is large, so that the third region 33 can be hardly clogged by the accumulation of the gel-like urine stone. For this reason, urine can be discharged well.

  Further, in the urinal drain trap 10, urine that has flowed from the inflow port 11 </ b> A penetrates the seal layer S and flows between the partition wall portion 13 and the folded portion 15 from above. Then, in a region (hereinafter referred to as a convection region T) surrounded by the partition wall portion 13, the coupling portion 14, and the turned-up portion 15, the flow of urine changes from falling to rising, and convection occurs. The seal layer S is agitated by the inflow of urine, and most of the seal liquid drawn downward from the seal layer S is caught in this convection. For this reason, the sealing liquid remains in the convection zone T. When the inflow of urine disappears and the convection disappears, the sealing liquid remaining in the convection area T rises due to its buoyancy and joins the upper sealing layer S.

  Further, the urine momentum in the descending flow path D that goes over the upper end of the folded portion 15 from the convection region T and goes to the third region 33 is attenuated compared to the urine momentum when flowing into the convection region T. For this reason, the seal liquid riding on the flow of urine and overcoming the upper end of the turn-back portion 15 from the convection zone T is only transported to the intermediate position of the descending flow path D and is not easily transported to the third region 33. When the flow of urine ceases, the sealing liquid staying in the descending flow path D rises due to its buoyancy and joins the upper sealing layer S.

  Thus, since the sealing liquid is hardly conveyed to the third region 33 by the flow of urine, the outflow of the sealing liquid from the outflow port 12 </ b> C provided downstream thereof can be suppressed. For this reason, the decrease in the sealing liquid can be suppressed even after long-term use, and the sealing layer S is unlikely to become thin. For this reason, this urinal drain trap 10 can prevent the odor from spreading for a long time.

  Further, since the inflow port 11A is provided in a ring shape divided into a plurality along the outer surface of the partition wall portion 13, the urine flowing from the inflow port 11A is dispersed and the urine momentum flowing into the main body portion 12 is obtained. Is weakened. For this reason, stirring of the seal layer S due to the inflow of urine is suppressed, and the seal liquid is less likely to be drawn below the seal layer S. Thereby, the outflow of the sealing liquid can be further suppressed. Moreover, since the urine flowing from the inlet 11A flows down along the outer surface of the partition wall 13, the stirring of the seal layer S is suppressed. Also by this, the outflow of the sealing liquid can be suppressed. Therefore, the seal layer S is not easily thinned, and odor emission can be prevented.

  Moreover, since the folding | turning part 15 is provided with a fixed space | interval with the partition part 13, it can produce a convection in the whole convection area | region T. FIG. For this reason, it is possible to reduce the amount of sealing liquid that rides on the flow of urine and passes over the upper end of the folded portion 15 from the convection region T. Therefore, the outflow of the sealing liquid can be suppressed. Further, even if gel-like urolith adheres to the inner surface of the convection zone T, the gel-like urolith does not deposit unevenly in the convection zone T. For this reason, it can suppress that a gel-like urine stone accumulates in a specific location at an early stage, and a spill does not arise in that location, but seal fluid flows out. Therefore, the seal layer S is not easily thinned, and odor emission can be prevented.

  Further, since the folded portion 15 extends more than the central height between the peripheral edge portion of the connecting portion 14 and the upper surface of the seal layer S, convection is reliably formed in the convection region T, and The sealing liquid drawn downward can be entangled in the convection in the convection zone T and can remain in the convection zone. Moreover, since the upper end of the folding | turning part 15 is arrange | positioned in the high position of the 1st area | region 31, the sealing liquid which gets over the upper end of the folding | turning part 15 from the convection area | region T can be decreased. For this reason, the outflow of the sealing liquid can be suppressed. Therefore, the seal layer S is not easily thinned, and odor emission can be prevented.

  Further, since the upper end of the folded portion 15 is formed lower than the lower surface of the seal layer S, when urine flows over the upper end of the folded portion 15 from the convection region T and flows downstream, the sealing liquid is discharged from the seal layer S. Pulling in can be suppressed. For this reason, the outflow of the sealing liquid can be suppressed. Therefore, the seal layer S is not easily thinned, and odor emission can be prevented.

  Moreover, since the folding | turning part 15 is provided in the center position between the partition part 13 and the side wall part 12A, the convection area | region T formed between the partition part 13 and the folding | turning part 15, and the folding | turning part 15 Gel-like urolith does not accumulate at a specific location in the descending flow path D formed between the side wall portion 12A and clogging due to the accumulation of gel-like urolith can be suppressed.

  Further, since the urinal drain trap 10 is formed in a cartridge form, the cartridge can be replaced when clogging occurs due to a decrease in the sealing liquid or accumulation of urine stones. For this reason, maintenance can be easily performed. Further, the urinal drain trap 10 is suppressed from clogging due to the accumulation of gel-like urine stones, so that the cartridge replacement frequency can be reduced.

<Example 2>
As shown in FIG. 5, the urinal drain trap 110 according to the second embodiment is directly attached to the lower end of the bowl surface 2 of the urinal 1. A locking member 21 is connected to the upper end of the main body 112. The main body 112 is inserted from above the opening 2A formed at the lower end of the bowl surface 2 of the urinal 1, and the collar portion 21B of the locking member 21 is locked to the upper surface of the peripheral edge of the opening 2A. A thread portion is formed on the outer surface of the main body portion 112. A ring-shaped fastening member 23 that is externally fitted from below the main body 112 and whose upper surface engages with the lower surface of the peripheral edge of the opening 2 </ b> A is screwed into a screw portion formed on the outer surface of the main body 112. In this manner, the main body 112 is attached to the opening 2A by sandwiching the peripheral edge of the opening 2A by the flange 21B of the locking member 21 and the fastening member 23.

  Further, the main body 112 has a connecting pipe 124 extending from the lower end corner. An outflow pipe 112 </ b> D rising in the second region 32 is connected to the upstream end of the connection pipe 124. An outlet 112C is formed at the upper end of the outlet pipe 112D. The outflow port 112 </ b> C opens upward from the upper end of the folded portion 15. The outflow pipe 112 </ b> D is formed in a semi-cylindrical shape, and the arc-shaped outer surface is disposed in contact with the inner surface of the partition wall 13. That is, the outflow pipe 112 </ b> D is disposed at a position biased to one side in the partition wall 13 in a plan view. The lower end portion of the connecting pipe 124 is connected to the drain pipe 4 drawn out to the wall surface W.

  The lid 11 is detachably attached to the main body 112. For this reason, when the clogging due to the accumulation of gel-like urine in the main body 112 occurs, the lid 11 can be removed to remove the cause of the clogging. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  Also in the urinal drain trap 110 having such a configuration, the partition wall portion 13 is formed in a cylindrical shape, the outflow pipe 112D is formed in a semi-cylindrical shape, as in the urinal drain trap 10 of the first embodiment, and an arc shape. Since the outer side surface is disposed in contact with the inner side surface of the partition wall portion 13, the outflow pipe 112 </ b> D is disposed at a position biased to one side in the partition wall portion 13 in plan view. For this reason, the space | interval of the outer surface of outflow pipe 112D and the inner surface of the partition part 13 can be expanded in the other side in the partition part 13 by planar view. Therefore, the urine ascending flow path U formed between the outer surface of the outflow tube 112D and the inner surface of the partition wall 13 has gel-like uroliths on the outer surface of the outflow tube 112D and the inner surface of the partition wall portion 13. Even if it accumulates, it can be made difficult to clog.

  Therefore, the urinal drain trap 110 of Example 2 can also discharge urine well over a long period of time.

<Example 3>
In the urinal drain trap 210 of Example 3, the outflow pipe 212D is formed in a cylindrical shape as shown in FIG. 4B, and the outer surface of the outflow pipe 212D is disposed in contact with the inner surface of the partition wall portion 13. ing. That is, the outflow pipe 212D is arranged at a position biased to one side in the partition wall 13 in plan view. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  In the urinal drain trap 210 having such a configuration, the distance between the outer side surface of the outflow pipe 212D and the inner side surface of the partition wall 13 can be increased on the other side in the partition wall 13 in plan view. Therefore, the urine ascending flow path U formed between the outer surface of the outflow tube 212D and the inner surface of the partition wall 13 has gel-like uroliths on the outer surface of the outflow tube 212D and the inner surface of the partition wall portion 13. Even if it accumulates, it can be made difficult to clog.

  Therefore, the urinal drain trap 210 according to the third embodiment can discharge urine well over a long period of time.

<Example 4>
The urinal drain trap 310 according to the fourth embodiment includes a lid 311, a main body 312, and a partition wall 313 as shown in FIGS. 6 to 8. The lid portion 311 penetrates an inflow port 311A through which urine that has flowed down along the bowl surface 2 of the urinal 1 flows. The main body 312 has a side wall 312A, a bottom 312B, and an outlet 312C. A plurality of locking projections 312F are formed in the middle portion of the outer surface of the side wall portion 312A.

  The partition wall 313 has a hollow shape extending from the center of the main body 312 toward the side wall 312A in the horizontal sectional view. The partition wall 313 is in contact with the inner surface of the side wall 312A at the outer surface on the side extending toward the side wall 312A. Further, the partition wall 313 has a semicircular shape on the center side of the main body 312 in a horizontal sectional view, and an inflow port 311A divided into a plurality of portions is arranged in the lid 312 along the outer surface of this part. Yes. In addition, the inner space of the partition wall 313 has a semicircular shape at the center side of the main body 312 in a horizontal sectional view, and the semicircular diameter is a short side, and the rectangular shape extends from the short side toward the side wall 312A. Is formed.

  The main body 312 is partitioned by a partition wall 313 into a first region 331 formed outside the partition wall 313 and a second region 332 formed inside. The first region 331 and the second region 332 are communicated with each other by a third region 333 formed below the lower end of the partition wall 313 and above the bottom 312B of the main body 312. The first region 331 is insoluble in water, has a lighter specific gravity than urine, and is injected with a sealing liquid that forms the sealing layer S above the stored urine.

  The urinal drain trap 310 has a side wall portion so that the partition wall portion 313 connects one outer surface to the other outer surface of the side surface extending from the center portion of the main body portion 312 toward the side wall portion 312A in a horizontal sectional view. Folded portions 315 are formed at equal intervals from the inner surface of 312A. The lower end of the folded portion 315 and a part of the lower end of the partition wall 313 are connected by a connecting portion 314. The upper end of the folded portion 315 is formed to extend upward in the first region 331 to a position lower than the lower surface of the seal layer S formed above the urine stored in the main body portion 312. Further, the folded portion 315 extends more than the center height between the distal end peripheral portion of the connecting portion 314 and the upper surface of the seal layer S.

The outflow port 312 </ b> C is formed at the upper end of the outflow pipe 312 </ b> D rising from the bottom 312 </ b> B of the main body 312 in the second region 332. Further, the outlet 312C is opened upward from the upper end of the folded portion 315. The outflow pipe 312D has a rectangular opening cross section, and the horizontal cross section of the outer surface is also rectangular. The outflow pipe 312D, the outer surface of the three directions, in a horizontal cross section, is disposed in contact with the inner surface of the rectangular shape which is formed on part of the inner space of the partition part 313. That is, the outflow pipe 312D is disposed at a position biased to one side in the partition wall 313 in plan view.

  Ascending flow path U is formed in the portion surrounded by the outer surface of outflow pipe 312D and the inner surface of partition wall 313, and the outer surface of outflow pipe 312D is not in contact with the inner surface of partition wall 313. . The flow passage area of the outflow pipe 312D is formed larger than the flow passage area of the ascending flow path U in the horizontal sectional view of the second region 332.

  The lower part of the outflow pipe 312D opens downward. A discharge port 312E is provided through the bottom 312B at the downstream end of the outflow pipe 312D. The urinal drain trap 310 in the form of a cartridge is attached to the storage container 20 so that the discharge port 312E is disposed at a position facing the upstream portion of the connecting pipe 24 of the storage container 20. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  Even in the urinal drain trap 310 having such a configuration, since the outflow pipe 312D is disposed at a position biased to one side in the partition wall 313 in plan view, the outer surface of the outflow pipe 312D and the inner surface of the partition wall 313 are arranged. Can be widened. Therefore, even if gel-like urolith accumulates on the outer surface of the outflow pipe 312D and the inner surface of the partition wall 313, the upward flow formed by being surrounded by the outer surface of the outflow pipe 312D and the inner surface of the partition wall 313. The path U can be made hard to clog.

  Therefore, the urinal drain trap 310 of Example 4 can discharge urine well over a long period of time.

  Moreover, since the flow passage area of the outflow pipe 312D is formed larger than the flow passage area of the rising flow path U in the horizontal sectional view of the second region 332, the flow rate of urine that can flow through the rising flow path U The flow rate of urine that can flow through the outflow pipe 312D is larger than that. For this reason, the inside of the outflow pipe 312D can be prevented from being filled with urine flowing from the ascending flow path U. Thereby, the siphon effect | action which arises when the inside of outflow pipe 312D is filled with water can be prevented. That is, it is possible to prevent the urine that should stay in the urinal drain trap 310 from being discharged due to the siphon action and the water seal from being cut off. Even if gel-like urine stones accumulate on the inner surface of the downstream side of the outflow pipe 312D, the situation where the inside of the outflow pipe 312D is filled with urine flowing from the ascending flow path U can be delayed. For this reason, this urinal drain trap 310 can be used satisfactorily over a long period of time.

  In addition, since the partition wall 313 and the horizontal section view extend from the center of the main body 312 toward the side wall 312A, the flow path area of the outflow pipe 312D can be further increased. For this reason, it is possible to prevent the inside of the outflow pipe 312D from being filled with urine flowing from the ascending flow path U, and to prevent the occurrence of siphon action. In addition, gel-like urine stones accumulate on the inner surface on the downstream side of the outflow pipe 312D, the flow path area becomes narrower, and the situation where the inside of the outflow pipe 312D is filled with urine flowing from the ascending flow path can be further delayed. it can. Therefore, the urinal drain trap 310 can be used satisfactorily for a long time.

  Moreover, since the lower part of the outflow pipe 312D is opened downward, urine can be directly discharged into the storage container 20 from the outflow pipe 312D. For this reason, it is possible to prevent the inside of the outflow pipe 312D from being filled with urine flowing from the ascending flow path U, and to prevent the occurrence of siphon action.

< Reference Example 1 >
As shown in FIGS. 9 and 10, the urinal drain trap 360 of Reference Example 1 is the urinal drain trap 310 of Example 4 in which the portion where the partition wall portion 313 contacts the inner surface of the side wall portion 312A is the side wall portion 312A. A portion where the outflow pipe 312D is in contact with the inner side surface of the partition wall portion 313 is formed integrally with the side wall portion 313. As a result, the urinal drain trap 360 can be easily manufactured and the consumption of raw materials can be reduced.

  The upper end portion of the outflow pipe 312D that forms the ascending flow path U of the urinal drain trap 360 is formed in an R surface shape, is formed continuously with the R surface, and has a convex portion with a substantially semicircular vertical sectional shape. Forming. For this reason, when urine flows into the outflow pipe 312D from the ascending flow path U, the upper end portion of the outflow pipe 312D can overflow smoothly. Other configurations are the same as those of the fourth embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  Even the urinal drain trap 360 having such a configuration is equivalent to the structure in which the outflow pipe is disposed at a position biased to one side in the partition wall 313 in plan view, and therefore, the outer surface of the outflow pipe and the partition wall 313. It is possible to widen the distance from the inner surface of the. Therefore, even if gel-like urolith accumulates on the outer side surface of the outflow pipe and the inner side surface of the partition wall portion 313, the ascending flow path U formed by being surrounded by the outer side surface of the outflow tube and the inner side surface of the partition wall portion 313. Can be hard to clog.

Therefore, the urinal drain trap 360 of Reference Example 1 can discharge urine well over a long period of time.

  Further, in the horizontal sectional view of the second region 332, the flow passage area of the portion corresponding to the outflow pipe is formed to be larger than the flow passage area of the ascending flow path U, so that it can flow through the ascending flow path U. The flow rate of urine that can flow through the portion corresponding to the outflow tube is larger than the flow rate of urine. For this reason, it is possible to prevent the inside of the portion corresponding to the outflow pipe from being filled with urine flowing from the ascending flow path U. Thereby, the siphon effect | action which arises when the inside of the part corresponded to an outflow pipe is filled with water can be prevented. That is, it is possible to prevent the urine to stay in the urinal drain trap 360 due to the siphon action and the water seal from being cut off. In addition, even if gel-like urine stones accumulate on the inner surface on the downstream side of the portion corresponding to the outflow pipe, the situation where the inside of the portion corresponding to the outflow pipe is filled with urine flowing from the ascending flow path U is delayed. be able to. For this reason, this urinal drain trap 360 can be used satisfactorily for a long time.

  Further, since the partition wall 313 extends in the horizontal sectional view from the center of the main body 312 toward the side wall 312A, the flow passage area of the portion corresponding to the outflow pipe can be further increased. For this reason, the inside of the portion corresponding to the outflow pipe can be prevented from being filled with urine flowing from the ascending flow path U, and the occurrence of siphon action can be prevented. In addition, gel-like urine stones are deposited on the inner surface of the downstream side of the portion corresponding to the outflow pipe to reduce the flow path area, and the inside of the portion corresponding to the outflow pipe is filled with urine flowing from the ascending flow path. Can be further delayed. Therefore, this urinal drainage trap 360 can be used satisfactorily for a long time.

  Moreover, since the lower part of the part corresponding to the outflow pipe is opened downward, urine can be directly discharged into the storage container 20 from the part corresponding to the outflow pipe. For this reason, the inside of the portion corresponding to the outflow pipe can be prevented from being filled with urine flowing in from the ascending flow path U, and the occurrence of siphon action can be prevented.

The present invention is not limited to the first to fourth embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
( 1 ) In Examples 1 to 3, the outer shape of the urinal drain trap was cylindrical, but it may not be cylindrical. In this case, the partition wall portion and the folded portion may not be cylindrical, but may be a cylindrical shape along the side wall of the main body.
( 2 ) In Examples 1 to 4 , the connecting part formed at the lower end of the partition part and the folded part formed at the front end peripheral part of the connecting part have the connecting part and the folded part. It does not have to be.
( 3 ) In Example 2, the main body is directly attached to the lower end of the bowl surface of the urinal, but the main body may be formed integrally with the urinal main body.

  The present invention is applicable to a urinal that does not use washing water.

DESCRIPTION OF SYMBOLS 1 ... Urinal 2 ... Bowl surface 10, 110, 210, 310, 360 ... Drainage trap for urinals 11, 311 ... Cover part 11A, 311A ... Inlet 12, 112, 312 ... Main part 12A, 112A, 312A ... Side wall part 12B, 112B, 312B ... Bottom 12C, 112C, 312C ... Outlet 12D, 112D, 212D, 312D ... Outflow pipe 31, 331 ... First region 32, 332 ... Second region 33, 333 ... Third region S ... Seal layer

Claims (5)

A lid portion that has an inflow port into which urine that fits into an opening provided at the lower end of the bowl surface of the urinal and flows down along the bowl surface,
A main body having a side wall formed extending downward from the outer peripheral edge of the lid, a bottom formed continuously at the lower end of the side wall, and an outlet through which stored urine overflows ,
A hollow partition wall provided inside the outer peripheral edge of the lid, extending downward from the closed upper end, and having a space between the bottom of the main body and opened at the lower end;
The inside of the main body is partitioned by the partition wall into a first region formed outside the partition wall portion and a second region formed inside, and the first region and the second region are the partition wall portion. Are communicated by a third region formed below the lower end and above the bottom,
The first region is a urinal drain trap that is insoluble in water, has a specific gravity lighter than urine, and is injected with a sealing liquid that forms a sealing layer above the stored urine,
The inflow port is provided at a position where urine flows into the first region from above,
The outflow port rises from the bottom of the main body in the second region , the outer surface is in contact with the inner surface of the partition wall, and the outflow is disposed at a position biased to one side in the partition wall in a plan view. A drainage trap for urinals, which is formed at the upper end of a pipe.   In the horizontal sectional view of the second region, the flow area of the outflow pipe is larger than the flow area of the ascending flow path formed by being surrounded by the outer side surface of the outflow pipe and the inner side surface of the partition wall. The urinal drain trap according to claim 1.   3. The urinal drain trap according to claim 1, wherein the partition wall portion is formed to extend from a central portion of the main body portion toward an inner surface of the side wall portion in a horizontal sectional view. The vertical dimension of the third region is such that the urine descending channel formed in the first region and the ascending channel formed surrounded by the outer surface of the outflow tube and the inner surface of the partition wall. The urinal drain trap according to any one of claims 1 to 3, wherein the urinal drain trap is formed to be larger than a lateral dimension in a vertical center sectional view . Drain pipe is connected to any one of claims 1 to 4, characterized in that it is formed on the cartridge type which is detachably mounted in a recess which opens upward at the lower end portion of the bowl surface of the urinal The urinal drain trap as described.

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