WO2011040319A1 - Urinal drain trap - Google Patents

Abstract

Provided is a urinal drain trap which is capable of preventing diffusion of foul odor for a long period of time. The urinal drain trap (10) is equipped with a lid section (11) having a flow inlet (11A); a main body section (12) having a flow outlet (12C); and a tubular partition section (13). The interior of the main body section (12) is divided into a first region (31) and a second region (32). The first region (31) and the second region (32) are linked with each other by a third region (33). Sealing liquid is injected into the first region (31), this sealing liquid being non-water-soluble, having a lower specific gravity than urine, and forming a sealing layer (S) at an elevation above retained urine. In a peripheral area of the lower end of the partition section (13), there is formed a connecting section (14) which extends laterally. In a peripheral area of the tip of the connecting section (14), there is formed a replicated section (15) which extends upward. Between the partition section (13) and the replicated section (15), the flow inlet (11A) is provided, in such a way as to form a through opening, at a location where urine flows in from above. The flow outlet (12C) is located in the second region (32) and is open at an elevation above the upper end of the replicated section (15).

Description

Urinal drain trap

The present invention relates to a urinal drain trap.

FIG. 12 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 urinal drain trap is fitted into a urinal by being fitted into a circular opening provided at the lower end of the bowl surface of the urinal. The lid portion has a circular shape in plan view. 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. A folded portion extending in the lateral direction from the lower end portion of the partition wall portion toward the inflow port side is formed. The folded portion is an inclined surface whose tip direction rises.

The main body is formed by a partition wall and a folded portion, a first region formed below the inlet and above the folded portion, a second region provided with the outlet, and below the folded portion and above the bottom. The third area is divided. The outlet is opened above the lower end of the partition wall. The first region and the second region communicate with each other through the third region. 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.

Further, FIG. 1 of Patent Document 1 discloses another conventional urinal drain trap. This urinal drain trap is also formed in the form of a cartridge and includes a lid, a main body, and a partition. The urinal drain trap is fitted into the urinal by being fitted into an opening provided at the lower end of the bowl surface of the urinal. The lid portion has a circular shape in plan view. The main body has a cylindrical side wall, a bottom formed continuously at the lower end of the side wall, and an outlet from which stored urine overflows. An inflow port through which urine that has flowed down along the bowl surface flows is formed between the peripheral edge of the lid and the side wall of the main body. 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 inlet is penetrated into 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 these conventional urinal drain traps, the sealing layer can prevent the urine odor stored in the main body from escaping from the inlet 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 urinal drain trap disclosed in FIG. 12 of Patent Document 1, since the flow path of the first region is short, urine flows from the first region into the third region vigorously. For this reason, seal liquid is easily conveyed to the 3rd field with urine which flows into the 3rd field. Further, in the third region, the folded portion is an inclined surface gently descending in the downstream direction, so that there is little change in the vertical direction of the flow path, and the seal liquid conveyed to the third region rides on the urine flow downstream It is easy to be conveyed to the second region on the side. Since the specific gravity of the sealing liquid conveyed to the second region is lighter than that of urine, the buoyancy increases the second region. Thus, the seal liquid that has been transported to the second region cannot return to the first region and flows out from the outlet. For this reason, with a long-term use, a sealing liquid flows out from an outflow port gradually, a sealing liquid reduces and a sealing layer becomes thin. If the seal layer is thin, the stored urine odor may be emitted from the inflow port.

In the urinal drain trap disclosed in FIG. 1 of Patent Document 1, the outflow pipe is disposed concentrically with the partition wall, and the ascending flow path of urine in the second region is formed between the outer surface of the outflow pipe and the partition wall. It is formed with a certain distance from the inner surface. 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.

The present invention has been made in view of the above-described conventional situation, and provides a urinal drain trap capable of preventing the emission of odor over a long period of time or discharging urine well over a long period of time. Is a problem to be solved.

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, and having a lower end opened with a gap between the bottom of the main body,
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,
One of the first region and the second region is a urinal drainage 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. There,
A connecting portion extending in a lateral direction toward one of the first region or the second region is formed at a lower end peripheral portion of the partition wall portion, and a folded portion extending upward is formed at a distal end peripheral portion of the connecting portion. Formed,
The inflow port is provided at a position where urine flows from above between the partition wall portion and the folded portion, and the outflow port is in the other region of the first region or the second region, It is characterized by opening upward from the upper end of the folded portion.

In this urinal drain trap, urine that has flowed in from the inlet passes through the seal layer and flows from above between the partition wall and the folded portion. Since the lower end of the partition wall and the lower end of the turn-up portion are connected by a connecting portion, the flow of urine starts from falling to rising in a region surrounded by the partition wall, the connecting portion, and the turn-up portion (hereinafter referred to as a convection zone). Convection occurs. The seal layer is agitated by the inflow of urine, and most of the seal liquid drawn below the seal layer is caught in the convection. For this reason, the sealing liquid remains in the convection zone. When the inflow of urine disappears and the convection disappears, the sealing liquid remaining in the convection area rises by its buoyancy and joins the upper sealing layer.

Also, the urine momentum in the descending flow path overcoming the upper end of the turn-up portion from the convection region and going to the third region is attenuated compared to the urine momentum flowing into the convection region. For this reason, the sealing liquid that has been riding on the flow of urine and has passed over the upper end of the turn-up portion from the convection area remains transported to the intermediate position of the descending flow path, and is not easily transported to the third area. When the flow of urine ceases, the sealing liquid staying in the descending flow path rises by its buoyancy and joins the upper sealing layer.

As described above, since the sealing liquid is hardly conveyed to the third region by the flow of urine, the outflow of the sealing liquid from the outlet provided downstream thereof can be suppressed. For this reason, even if it is used for a long time, the reduction | decrease of a sealing liquid can be suppressed and a sealing layer does not become thin easily.

Therefore, the drainage trap for urinals of the present invention can prevent odor emission over a long period of time.

The inlet may be provided along the partition wall. In this case, the urine flowing from the inlet is dispersed, and the momentum of the urine flowing into the main body is weakened. For this reason, stirring of the seal layer due to the inflow of urine is suppressed, and the seal liquid is less likely to be drawn below the seal layer. Thereby, the outflow of the sealing liquid can be further suppressed. Moreover, since urine flowing from the inlet flows down along the surface of the partition wall, stirring of the seal layer is suppressed. Also by this, the outflow of the sealing liquid can be suppressed. Therefore, it is difficult for the seal layer to be thin, and odor emission can be prevented.

The folded portion may be provided with a certain distance from the partition wall. In this case, since a fixed interval is formed between the folded portion and the partition wall, convection can be generated in the entire convection area. For this reason, it is possible to reduce the amount of the sealing liquid that rides on the flow of urine and crosses the upper end of the folded portion from the convection area, so that the outflow of the sealing liquid can be suppressed. Further, even if gel-like urolith adheres to the inner surface of the convection area, the gel-like urolith does not easily deposit in the convection area. For this reason, it is possible to prevent the sealing liquid from flowing out because gel-like urine stones accumulate at a specific location at an early stage and no convection occurs at that location. Therefore, it is difficult for the seal layer to be thin, and odor emission can be prevented.

The folded portion may extend more than the center height between the tip peripheral edge of the connecting portion and the upper surface of the seal layer. In this case, since the convection can be surely formed in the convection area, the sealing liquid drawn below the seal layer is caught in the convection in the convection area and remains in the convection area. In addition, since the upper end of the folded portion is disposed at a high position in the first region, it is possible to reduce the sealing liquid that gets over the upper end of the folded portion from the convection area. For this reason, the outflow of the sealing liquid can be suppressed. Therefore, it is difficult for the seal layer to be thin, and odor emission can be prevented.

The upper end of the folded portion can be lower than the lower surface of the seal layer. In this case, when urine flows over the upper end of the turn-up portion from the convection area and flows downstream, it is possible to prevent the sealing liquid from being drawn from the seal layer. For this reason, the outflow of the sealing liquid can be suppressed. Therefore, it is difficult for the seal layer to be thin, and odor emission can be prevented.

The folded portion may be provided at a central position between the partition wall and the side wall. In this case, since the distance between the partition wall and the folded part and the distance between the folded part and the side wall part are the same, the gel-like urolith does not accumulate at a specific location at an early stage. Clogging due to accumulation can be suppressed.

Further, the drainage trap for urinals 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 outlet is formed at the upper end of an outflow pipe that rises from the bottom of the main body in the second region and is disposed at a position biased to one side of the partition in a plan view.

In this urinal drain trap, since the outflow pipe is arranged at a position biased to one side in the partition wall in plan view, the outer surface of the outflow pipe on the other side in the partition wall and the inner side surface of the partition wall in plan view. The interval can be increased. 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 partition wall may be formed in a cylindrical shape, the outflow pipe may be formed in a semi-cylindrical shape, and the arcuate outer surface may be disposed close to the inner surface of the partition wall. In this case, the flow path area of the outflow pipe can be increased while increasing the distance between the outer surface of the outflow pipe and the inner side surface of the partition wall on the other side in the partition wall in plan view. For this reason, a sufficient flow rate of urine from the outflow tube can be secured, and urine can be discharged well.

The vertical dimension of the third region may be larger than the lateral dimension of the urine descending channel and the ascending channel formed in the first region in the vertical center cross-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 can 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 drainage trap for urinals of Example 1. FIG. It is a disassembled perspective view which shows the drain trap for urinals of Example 1. FIG. (A) is a sectional view taken along the line QQ in FIG. 2 of the urinal drain trap of Example 1. FIG. (B) is sectional drawing which shows the drainage trap for urinals of Example 5. 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 3. It is sectional drawing which shows the drainage trap for urinals of Example 4. It is sectional drawing which shows the urinal drain trap of Example 6. It is a disassembled perspective view which shows the drain trap for urinals of Example 6. FIG. FIG. 10 is a cross-sectional view taken along the line QQ in FIG. 8 of the urinal drain trap of Example 6. It is sectional drawing which shows the urinal drain trap of Example 7. 12 is a cross-sectional view taken along the line QQ in FIG. 11 of the urinal drain trap of Example 7. FIG.

Embodiments 1 to 7 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. 4 (A), 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 into the opening 2A formed at the lower end of the bowl surface 2 of the urinal 1 from above. 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 11 is provided with 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 main body 12 is partitioned by a 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 communicate 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 that of urine, and is injected with a seal liquid that forms a seal layer S above the stored urine.

The partition wall 13 forms a ring-shaped connecting portion 14 extending in the lateral direction toward the first region 31 at the outer peripheral edge at the lower end. The connecting portion 14 forms a cylindrical folded portion 15 extending upward at the peripheral edge portion of the tip. 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 central height between the peripheral edge portion of the connecting portion 14 and the upper surface of the seal layer S.

The outlet 12 </ b> C is formed at the upper end of the outflow pipe 12 </ b> D rising from the bottom 12 </ b> B of the main body 12 in the second region 32. 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 is arranged so that the arc-shaped outer surface is 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, urine that has flowed from the inflow port 11A passes through 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 turn-back 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.

As described above, since the sealing liquid is hardly conveyed to the third region 33 due to the flow of urine, the outflow of the sealing liquid from the outlet 12C 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.

Therefore, the urinal drain trap 10 of Example 1 can prevent odor emission over a long period of 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 the partition part 13 and a fixed space | interval, 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, the vertical dimension X of the third region 33 is the lateral direction in the vertical center cross section of the urine descending flow path D formed in the first region 31 and the urine ascending flow channel U formed in the second region. It is formed larger than the dimensions Y and Z. That is, since the vertical dimension of the third region where gel-like urine stones are likely to be deposited can be formed large, the third region 33 can be less likely to be clogged due to the accumulation of gel-like urine stones. For this reason, urine can be discharged well.

In addition, 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. 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.

Further, 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 in contact with the inner surface of the partition wall 13. Accordingly, the outflow pipe 12D is arranged at a position biased to one side in the partition wall 13 in a 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 of Example 1 can discharge urine well over a long period of time.

Further, the flow passage cross-sectional area of the outflow pipe 12D can be increased while increasing the distance between the outer side surface of the outflow pipe 12D and the inner side surface of the partition wall 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.

<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.

Even in the urinal drain trap 110 having such a configuration, much of the sealing liquid drawn downward from the seal layer S due to the inflow of urine into the convection region T as in the urinal drain trap 10 of the first embodiment. The convection is generated and remains in the convection zone T. For this reason, when the inflow of urine disappears, the sealing liquid remaining in the convection area T rises due to its buoyancy and joins the upper sealing layer S. In addition, the seal liquid that has passed over the upper end of the turn-back portion 15 from the convection area 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.

Therefore, the urinal drain trap 110 of the second embodiment can also prevent the odor from spreading for a long time.

Further, in the urinal drain trap 110, as in the urinal drain trap 10, the partition wall 13 is formed in a cylindrical shape, the outflow pipe 112D is formed in a semi-cylindrical shape, and the arc-shaped outer surface is formed. By being disposed in contact with the inner surface of the partition wall 13, the outflow pipe 112 </ b> D is disposed at a position biased to one side in the partition wall 13 in a 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 the third embodiment, as shown in FIG. 6, the outflow pipe 212 </ b> D has a cylindrical shape and is formed coaxially with the side wall 212 </ b> A of the main body 212. Further, the outflow pipe 212D is located coaxially with the partition wall 13 as well. For this reason, the ascending flow path U is formed between the partition wall 13 and the outflow pipe 212D. A discharge port 212 </ b> E that faces the upstream portion of the connection pipe 24 of the storage container 20 is formed in the center portion of the bottom portion 212 </ b> B of the main body portion 212. 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 210 having such a configuration, much of the sealing liquid drawn downward from the seal layer S due to the inflow of urine into the convection zone T as in the urinal drain trap 10 of the first embodiment. The convection is generated and remains in the convection zone T. For this reason, when the inflow of urine disappears, the sealing liquid remaining in the convection area T rises due to its buoyancy and joins the upper sealing layer S. In addition, the seal liquid that has passed over the upper end of the turn-back portion 15 from the convection area 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 due to the flow of urine, the outflow of the sealing liquid from the outflow port 212 </ 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.

Therefore, the urinal drain trap 210 of Example 3 can also prevent odor emission over a long period of time.

<Example 4>
As shown in FIG. 7, the urinal drain trap 310 according to the fourth embodiment includes a lid portion 311, a main body portion 312, and a partition wall portion 313. The main body 312 has a side wall 312A, a bottom 312B, and an outlet 312C. The side wall portion 312A has a cylindrical shape, and a belt-like convex portion 312D is formed at an intermediate portion of the outer surface. The main body 312 is directly attached to the lower end of the bowl surface 2 of the urinal 1 by a locking member 321. The locking member 321 is continuous to the cylindrical portion 321A of the cylindrical shape surrounding the upper portion of the main body portion 312; the ring-shaped flange portion 321B that extends outwardly; and the lower end of the cylindrical portion 321A. And an annular recess 321C that engages with the protrusion 312D. Moreover, the locking member 321 has a semicircular arc-shaped locking portion 321D that sandwiches the peripheral edge portion of the opening 2A formed at the lower end portion of the bowl surface 2 of the urinal 1 with the collar portion 321B. . The locking portion 321D is elastically movable, elastically moves inward, passes through the opening 2A from above, and moves outward after passing. In this way, the locking portion 321D is locked to the lower surface of the peripheral edge of the opening 2A. The packing 22 is externally fitted between the flange portion 321B and the locking portion 321D.

The side wall 312A is provided with an outlet 312C that opens upward from the upper end of a folded portion 315 described later. The main body 312 is provided with a connecting pipe 324 extending in the lateral direction from the outlet 312C. The urinal drain trap 310 is connected to the water distribution pipe 4 drawn out to the wall surface W by a connecting pipe 324 extending laterally from the upper part.

The outer shape of the lid 311 is circular. The lid 311 fits into an opening formed by a locking member 321 that attaches the main body 312 to the lower end of the bowl surface 2 of the urinal 1, that is, an opening provided at the lower end of the bowl surface 2 of the urinal 1. It is crowded. A packing P is fitted in an annular recess formed on the outer peripheral end surface of the lid 311. For this reason, the inner surface of the opening formed by the locking member 321 and the outer surface of the lid portion 311 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 311. An inflow port 311 </ b> A into which urine that has flowed down along the bowl surface 2 of the urinal 1 flows is indirectly connected to the lid 311.

The partition wall 313 has a cylindrical shape, is provided on the inner side of the outer peripheral end of the lid 311, and the lower end is opened with a gap between the bottom 312 </ b> B of the main body 312. The partition wall 313 is provided on the same axis as the lid 311. An inflow port 311 </ b> A that is divided into a plurality along the inner side surface of the partition wall 313 is arranged in a ring shape on the lid 311.

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 second region 332 is insoluble in water, has a specific gravity lighter than that of urine, and is injected with a sealing liquid that forms a sealing layer S above the stored urine.

A ring-shaped connecting portion 314 extending in the lateral direction toward the second region 332 is formed on the inner peripheral edge at the lower end of the partition wall portion 313. A cylindrical folded portion 315 extending upward to the height of the intermediate portion of the partition wall portion 313 is formed on the peripheral edge portion of the connecting portion 314. The folded portion 315 has a certain distance from the partition wall 313. That is, the folded portion 315 and the partition wall 313 are arranged on the same axis. Further, the upper end of the folded portion 315 is formed to extend upward in the second region 332 to a position lower than the lower surface of the seal layer S formed above the urine stored in the main body portion 312.

In the urinal drain trap 310 having such a configuration, urine that has flowed from the inflow port 311A passes through the seal layer S and flows between the partition wall 313 and the folded portion 315 from above. Then, in the convection zone T that is a region surrounded by the partition wall 313, the connecting portion 314, and the turn-up portion 315, the flow of urine changes from descending 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.

Also, the urine momentum in the descending flow path D that goes over the upper end of the turn-up portion 315 from the convection region T and goes to the third region 333 is attenuated compared to the urine momentum when flowing into the convection region T. For this reason, the sealing liquid that rides on the flow of urine and passes over the upper end of the turn-up portion 315 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 disappears, the sealing liquid that has convected 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 333 due to the flow of urine, the outflow of the sealing liquid can be suppressed from the outlet 312C provided downstream thereof. 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.

Therefore, the urinal drain trap 310 of Example 4 can also prevent odor emission over a long period of time.

Further, since the inlet 311A is provided in a ring shape divided into a plurality along the inner surface of the partition wall 313, the urine flowing from the inlet 311A is dispersed and the urine momentum flowing into the main body 312 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 inner surface of the partition wall 313, 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 | returning part 315 is provided with the partition part 313 and a fixed space | interval, it can produce a convection in the whole convection area | region T. FIG. For this reason, it is possible to reduce the sealing liquid that rides on the flow of urine and passes over the upper end of the folded portion 315 from the convection region T. Therefore, the outflow of the sealing liquid can be suppressed. Even if gel-like urine adheres to the inner surface of the convection zone T, gel-like urine stones do 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 upper end of the folded portion 315 is formed lower than the lower surface of the seal layer S, when urine flows over the upper end of the folded portion 315 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.

In addition, since the descending flow path D having a large flow path cross-sectional area is formed inside the folded portion 315, gel-like urolith does not accumulate at an early stage, and clogging due to accumulation of gel-like urolith is suppressed. can do.

<Example 5>
In the urinal drain trap 410 of the fifth embodiment, as shown in FIG. 4B, the outflow pipe 412D is formed in a cylindrical shape, and the outer surface of the outflow pipe 412D is disposed in contact with the inner surface of the partition wall portion 13. ing. That is, the outflow pipe 412D is disposed 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 410 having such a configuration, the distance between the outer surface of the outflow pipe 412D and the inner surface of the partition wall 13 can be increased on the other side in the partition wall 13 in a plan view. Therefore, the urine ascending flow path U formed between the outer surface of the outflow tube 412D and the inner surface of the partition wall 13 has gel-like urine stones on the outer surface of the outflow tube 412D 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 410 of Example 5 can also discharge urine well over a long period of time.

<Example 6>
The urinal drain trap 510 of Example 6 includes a lid 511, a main body 512, and a partition wall 513 as shown in FIGS. The lid portion 511 penetrates an inflow port 511A through which urine that has flowed down along the bowl surface 2 of the urinal 1 flows. The main body portion 512 has a side wall portion 512A, a bottom portion 512B, and an outlet 512C. A plurality of locking projections 512F are formed at the intermediate portion of the outer surface of the side wall portion 512A.

The partition wall portion 513 has a hollow shape extending from the central portion of the main body portion 512 toward the side wall portion 512A in the horizontal sectional view. In addition, the partition wall 513 has an outer surface on the side extending toward the side wall 512A in contact with the inner surface of the side wall 512A. Further, the partition wall 513 has a semicircular shape on the central side of the main body 512 in a horizontal sectional view, and an inflow port 511A divided into a plurality of portions is arranged in the lid 512 along the outer surface of this part. Yes. Further, the inner space of the partition wall portion 513 has a semicircular shape at the center side of the main body portion 512 in a horizontal sectional view, and has a semicircular shape with a short side of the diameter of the semicircle as a rectangular shape from the short side toward the side wall portion 512A. Is formed.

The main body 512 is partitioned by a partition wall 513 into a first region 531 formed outside the partition wall 513 and a second region 532 formed inside. The first region 531 and the second region 532 are communicated with each other by a third region 533 formed below the lower end of the partition wall 513 and above the bottom 512B of the main body 512. The first region 531 is insoluble in water, has a specific gravity lighter than that of urine, and is injected with a sealing liquid that forms a sealing layer S above the stored urine.

The urinal drain trap 510 has a side wall portion so that the partition wall portion 513 connects one outer surface to the other outer surface of the side surface extending from the central portion of the main body portion 512 toward the side wall portion 512A in a horizontal sectional view. Folded portions 515 are formed at equal intervals from the inner surface of 512A. The lower end of the folded portion 515 and a part of the lower end of the partition wall portion 513 are connected by a connecting portion 514. The upper end of the folded portion 515 is formed to extend upward in the first region 531 to a position lower than the lower surface of the seal layer S formed above the urine stored in the main body portion 512. Further, the folded portion 515 extends beyond the center height between the distal end peripheral portion of the connecting portion 514 and the upper surface of the seal layer S.

The outlet 512 </ b> C is formed at the upper end of the outflow pipe 512 </ b> D rising from the bottom 512 </ b> B of the main body 512 in the second region 532. In addition, the outlet 512 </ b> C opens upward from the upper end of the folded portion 515. The outflow pipe 512D has a rectangular opening cross section, and the horizontal cross section of the outer surface is also rectangular. The outflow pipe 512D is arranged such that the outer surface in the three directions is in contact with the inner surface of the portion formed in a rectangular shape in the horizontal sectional view of the inner space of the partition wall portion 513. That is, the outflow pipe 512D is disposed at a position biased to one side in the partition wall 513 in plan view.

Ascending flow path U is formed in a portion surrounded by the outer surface of outflow pipe 512D and the inner side surface of partition wall 513, and the outer surface of outflow pipe 512D is not in contact with the inner surface of partition wall 513. . The flow passage area of the outflow pipe 512 </ b> D is formed larger than the flow passage area of the ascending flow path U in the horizontal sectional view of the second region 532.

The lower part of the outflow pipe 512D is open downward. A discharge port 512E is provided through the bottom 512B at the downstream end of the outflow pipe 512D. The urinal drain trap 510 in the form of a cartridge is attached to the storage container 20 so that the discharge port 512E 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 510 having such a configuration, since the outflow pipe 512D is disposed at a position biased to one side in the partition wall 513 in plan view, the outer surface of the outflow pipe 512D and the inner surface of the partition wall 513 Can be widened. Therefore, even if gel-like urolith accumulates on the outer side surface of the outflow pipe 512D and the inner side surface of the partition wall portion 513, the upward flow formed by being surrounded by the outer side surface of the outflow tube 512D and the inner side surface of the partition wall portion 513. The path U can be made hard to clog.

Therefore, the urinal drain trap 510 of Example 6 can discharge urine well over a long period of time.

In addition, since the flow passage area of the outflow pipe 512D is formed larger than the flow passage area of the rising flow path U in the horizontal sectional view of the second region 532, 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 512D is larger than that. For this reason, it is possible to prevent the inside of the outflow pipe 512D 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 512D becomes full of water can be prevented. That is, it is possible to prevent the urine to be retained in the urinal drain trap 510 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 outflow pipe 512D, the situation where the inside of the outflow pipe 512D is filled with urine flowing from the ascending flow path U can be delayed. For this reason, this urinal drain trap 510 can be used satisfactorily over a long period of time.

Moreover, since the partition wall 513 extends in the horizontal cross-sectional view from the center of the main body 512 toward the side wall 512A, the flow passage area of the outflow pipe 512D can be further increased. For this reason, it is possible to prevent the inside of the outflow pipe 512D 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 of the downstream side of the outflow pipe 512D, the flow path area becomes narrower, and the situation where the inside of the outflow pipe 512D is filled with urine flowing from the ascending flow path can be further delayed. it can. Therefore, this urinal drainage trap 510 can be used satisfactorily over a long period of time.

Further, since the lower part of the outflow pipe 512D is opened downward, urine can be directly discharged into the storage container 20 from the outflow pipe 512D. For this reason, it is possible to prevent the inside of the outflow pipe 512D from being filled with urine flowing from the ascending flow path U, and to prevent the occurrence of siphon action.

<Example 7>
11 and 12, the urinal drain trap 560 of the seventh embodiment is the same as the urinal drain trap 510 of the sixth embodiment except that the portion where the partition wall portion 513 is in contact with the inner surface of the side wall portion 512A is the side wall portion 512A. A portion where the outflow pipe 512D is in contact with the inner side surface of the partition wall portion 513 is formed integrally with the side wall portion 513. This facilitates the manufacture of the urinal drain trap 560 and reduces the consumption of raw materials.

The upper end portion of the outflow pipe 512D that forms the ascending flow path U of the urinal drain trap 560 is formed in an R surface shape, is formed continuously with the R surface, and has a convex portion having a substantially semicircular vertical sectional shape. Forming. For this reason, when urine flows into the outflow pipe 512D from the ascending flow path U, the upper end portion of the outflow pipe 512D can overflow smoothly. Other configurations are the same as those of the sixth embodiment, and the same reference numerals are given to the same configurations, and detailed description thereof is omitted.

The urinal drain trap 560 having such a configuration is equivalent to a structure in which the outflow pipe is disposed at a position biased to one side in the partition wall 513 in plan view, and therefore, the outer surface of the outflow pipe and the partition wall 513. 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 513, the rising 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 513. Can be hard to clog.

Therefore, the urinal drain trap 560 of Example 7 can discharge urine well over a long period of time.

Further, in the horizontal sectional view of the second region 532, the flow passage area of the portion corresponding to the outflow pipe is formed 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 that should stay in the urinal drain trap 560 from being generated due to the siphon action, and the water seal from being broken. 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.

Moreover, since the partition wall portion 513 extends from the center portion of the main body portion 512 toward the side wall portion 512A in the horizontal sectional view, the flow path 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 in 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 560 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 seventh embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In Examples 1 to 7, the outer shape of the urinal drain trap was a cylindrical shape, but it may not be a cylindrical shape. 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 7, the upper end of the folded portion is formed lower than the lower surface of the seal layer, but may be located in the seal layer.
(3) In Examples 1 and 2, the outflow pipe is formed in a semi-cylindrical shape, and the arc-shaped outer surface is disposed in contact with the inner side surface of the partition wall, but the outflow pipe may not be in a semi-cylindrical shape. Good.
(4) 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.
(5) In Examples 1, 2, 5, and 6, the outer surface of the outflow pipe is disposed in contact with the inner surface of the partition wall, but the outflow tube does not contact the inner surface of the partition wall in plan view. It is good to arrange | position in the position biased to one side in a partition part.

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, 410, 510, 560 ... Drain trap for urinal 11, 311, 511 ... Lid 11A, 311A, 511A ... Inlet 12, 112, 212, 312, 512 ... Main body 12A, 112A, 212A, 312A, 512A ... Side wall 12B, 112B, 212B, 312B, 512B ... Bottom 12C, 112C, 212C, 312C, 512C ... Outlet 12D, 112D, 212D, 312D, 512D ... Outflow Pipes 13, 313, 513 ... partitioning part 14, 314, 514 ... connecting part 15, 315, 515 ... folded part 31, 331, 531 ... first region 32, 332, 532 ... second region 33, 333, 533 ... first 3 area S ... Seal layer

Claims (13)

1. 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, and having a lower end opened with a gap between the bottom of the main body,
   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,
   One of the first region and the second region is a urinal drainage 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. There,
   A connecting portion extending in a lateral direction toward one of the first region or the second region is formed at a lower end peripheral portion of the partition wall portion, and a folded portion extending upward is formed at a distal end peripheral portion of the connecting portion. Formed,
   The inflow port is provided at a position where urine flows from above between the partition wall portion and the folded portion, and the outflow port is in the other region of the first region or the second region, A drainage trap for urinals, which opens upward from the upper end of the folded portion.
2. The urinal drain trap according to claim 1, wherein the inflow port is provided along the partition wall.
3. The urinal drain trap according to claim 1 or 2, wherein the folded portion is provided with a certain distance from the partition wall.
4. The urinal drain trap according to claim 1 or 2, wherein the folded portion extends at a height equal to or greater than a center height between a distal end peripheral portion of the connecting portion and an upper surface of the seal layer.
5. The urinal drain trap according to claim 1 or 2, wherein an upper end of the folded portion is lower than a lower surface of the seal layer.
6. The urinal drain trap according to claim 1 or 2, wherein the folded portion is provided at a central position between the partition wall and the side wall.
7. The outlet is formed at an upper end of an outflow pipe that rises from the bottom of the main body in the second region and is disposed at a position biased to one side of the partition in a plan view. Item 3. A urinal drain trap according to item 1 or 2.
8. 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 urine is formed at the upper end of an outflow pipe that rises from the bottom of the main body in the second region and is disposed at a position biased to one side of the partition in a plan view. Dewatering trap.
9. 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 8.
10. The urinal drain trap according to claim 8 or 9, 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.
11. The partition wall is formed in a cylindrical shape, the outflow pipe is formed in a semi-cylindrical shape, and an arcuate outer surface is disposed close to an inner surface of the partition wall. A drainage trap for urinals according to 8 or 9.
12. The vertical dimension of the third region is formed to be larger than the horizontal dimension of the urine descending channel and the ascending channel formed in the first region in the vertical center sectional view. The urinal drain trap according to claim 8 or 9.
13. The drainage pipe is connected, and is formed in a cartridge form that is detachably attached to a recess opened upward at the lower end of the bowl surface of the urinal. The drainage trap for urinals of any one of Claims.

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