JP2015063862A - Urinal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a urinal that increases a substitutional rate of urine stored in a drain trap.SOLUTION: A urinal 10, which washes a bowl part 12 with washing water, comprises a water discharge part 16 that washes the bowl part by discharging the washing water to the bowl part, and a drain trap 20 that has a turn-back channel for changing a direction of a flow of the washing water, flowing downward from a drain outlet 18 provided on the bottom of the bowl part, to an upward direction. The drain trap is provided with water flow changing means 36 for guiding the washing water, which flows along an outer peripheral side within the turn-back channel, to an inner peripheral side.

Description

  The present invention relates to a urinal for washing a bowl portion with washing water.

  2. Description of the Related Art Conventionally, a urinal having a drain trap formed below a bowl portion that receives a user's urine in a urinal body is known (see, for example, Patent Document 1). A drain outlet is provided at the lower part of the bowl portion of the urinal body, and a drain trap is provided so as to be connected to the drain outlet. The drain trap has a substantially U-shaped configuration composed of a descending channel that guides the wash water flowing out from the drain port downward, and an ascending channel that is provided downstream from this via a return channel and guides the wash water upward. I am doing. The drain trap is connected to a drain pipe for discharging washing water to the outside by a connecting pipe. That is, the wash water that has passed through the rising flow path of the drain trap flows into the drain pipe via the connection pipe.

  In the lower part of the drain trap, a predetermined amount of washing water is collected in order to prevent odors and the like from entering the toilet space from the sewage, and sealed water is formed by this accumulated water. When the user urinates using the urinal, urine flows into the drain trap, and a part of the accumulated water is discharged by the urine that flows, and the urine and water are mixed in the drain trap. When washing water is poured into the bowl after urination, the washing water flows into the drain trap, and a liquid with a high urine concentration in a state where urine and water are mixed is discharged from the drain trap. Therefore, the liquid with a high urine concentration is almost replaced with washing water. Then, the liquid having a low urine concentration (substantially washing water) accumulates in the drain trap, and the drain trap is washed.

  In this way, when rinsing water is poured into the bowl portion to replace the urine in the drain trap with water, the urine remaining in the drain trap must be as small as possible in the state after replacement, that is, after cleaning. Is preferred. In order to simply increase the replacement rate of the accumulated water stored in the drain trap, there is a method of increasing the amount of cleaning water supplied relative to the amount of stored water in the drain trap. The replacement rate is a ratio of how much stored water with high urine concentration after urination before washing is replaced with washing water by washing water to wash the urinal. That is, when the replacement rate is low, urine remains in the stored water after washing, and when the replacement rate is high, urine remains in the stored water after washing.

  On the other hand, with the recent increase in environmental awareness, the desire to save water is further increasing, and the amount of washing water is required to be reduced as much as possible. Therefore, it is not preferable to simply increase the amount of cleaning water in order to increase the replacement rate of the stored water in the drain trap.

JP2012-149415A

  In order to meet the need for water saving, simply reducing the amount of washing water flowing in the bowl part makes it difficult to replace almost all of the liquid in a mixed state of urine and water in the drain trap with water, A liquid with a high urine concentration will remain in that state in the drain trap. If a liquid with high urine concentration remains in the drainage trap, it will lead to the generation of urinary stones, and the generated urinary stones will gradually grow and the amount of deposition will increase. It occurs and feels uncomfortable.

  The present invention has been made in view of the above circumstances, and its object is to improve the replacement rate of urine collected in a drain trap while saving water without increasing the amount of washing water. To provide a toilet bowl.

  One aspect of the present invention is a urinal that cleans the bowl portion with cleaning water, and includes a water discharge portion that discharges the cleaning water into the bowl portion for cleaning, and a drain port provided at the bottom of the bowl portion. A drain trap having a return channel that changes the flow of the wash water that has flowed downward, to the drain trap, the wash water flowing on the outer peripheral side of the return channel in the return channel It is a urinal characterized by providing water flow changing means for guiding to the inner peripheral side.

  In the present invention configured as described above, the washing water flowing through the drainage trap at the time of washing is generated in the drainage trap by the flow changing means that the flow on the outer peripheral side of the return channel is directed to the inner peripheral side. Itching can be suppressed and liquid with a high urine concentration can be prevented from staying in the drain trap. Thus, most of the urine in the drain trap can be replaced with washing water by efficiently discharging urine with a small amount of washing water. Thereby, generation | occurrence | production of the malodor and urine stone by water with high urine concentration can be suppressed, aiming at water saving.

  In a selective aspect of the present invention, the water flow changing means is a urinal characterized by generating a swirling flow in the wash water flowing in the drain trap.

  In the invention thus configured, the flow of washing water is changed to a swirling flow swirling with respect to the axial direction of the drain trap by the water flow changing means, and the swirling flow is guided to the drain trap to cancel the stagnation. By discharging urine efficiently even with a small amount of washing water, most of the urine in the drain trap can be replaced with washing water. Thereby, generation | occurrence | production of the malodor and urine stone by water with high urine concentration can be suppressed, aiming at water saving.

  In a selective aspect of the present invention, the water flow changing means is disposed on the upstream side of the folded flow path in the drain trap, and has a spiral structure that swirls cleaning water around the flow direction of the drain trap. A urinal characterized by that.

  In the invention configured as described above, if the water flow changing means is inserted into the drainage trap of the existing urinal, urine can be efficiently discharged even with a small amount of washing water, so that the existing urinal can be saved. . Moreover, since the water flow changing means can be removed, the cleanability in the drain trap is also good.

  In a selective aspect of the present invention, the urinal is characterized by having an eye plate that is detachably attached to the drain port, and the water flow changing means is provided on the eye plate.

  In the invention configured as described above, by providing the water flow changing means on the eye plate removably attached to the drain outlet, the eye plate installed in the existing urinal and the eye plate provided with the water flow changing means By replacing it, water flow changing means can be easily provided in the drain trap, and urine can be efficiently discharged even with a small amount of washing water, so that the existing urinal can be saved. Moreover, since the water flow changing means can be removed, the cleanability is good.

  In a selective aspect of the present invention, the water flow changing means is a urinal formed on an inner wall in the drain trap.

  In the invention configured as described above, the water flow changing means is formed on the inner wall in the drain trap, so there is no need for other members and the cost can be reduced.

  According to the urinal of the present invention, the replacement rate of urine collected in the drain trap can be improved while saving water.

The side sectional view of the urinal concerning one embodiment of the present invention. The top view of the eye plate of the urinal which concerns on one Embodiment of this invention. The perspective view of the eye plate of a urinal and water flow change means concerning one embodiment of the present invention. Side surface sectional drawing of the swirl flow by the water flow change means of the urinal which concerns on one Embodiment of this invention. Side surface sectional drawing showing the flow of the washing water in the conventional urinal. The top view of the eye plate of a urinal and water flow change means based on other one Embodiment of this invention. Side surface sectional drawing of the urinal which concerns on other one Embodiment of this invention. Side surface sectional drawing showing the flow of the wash water in the urinal concerning other one Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

  As shown in FIG. 1, the urinal 10 has a bowl surface 12 that is installed on the floor or wall of a toilet space and receives a user's urine. The water is supplied from a water supply pipe 14 connected to a water supply source (not shown) to the water discharger 16. The water discharger 16 discharges cleaning water to the bowl 12 and cleans it. The water discharger 16 is provided on the upper part of the bowl surface 12. At the bottom of the bowl surface 12, a circular drain port 18 through which the washing water is drained is formed. The drain trap 20 formed downward from the drain port 18 has a descending flow path 22 extending downward from the drain port 18 and a return flow that folds the flow path downward from the bottom continuously from the lower end of the descending path 22. It is integrally formed by a bent portion 24 that is a path and an ascending channel 26 that extends upward from the downstream end of the bent portion 24. That is, in the drain trap 20, the flow of the cleaning water flowing downward from the drain port 18 is changed upward by the bent portion 24.

  In the lower part of the drain trap 20, in order to prevent odors and the like from entering the toilet space from the sewage, a predetermined amount of cleaning water is accumulated to form a reservoir. Is done. That is, the drain trap 20 forms a sealed water downstream of the drain port 18.

  On the downstream side of the ascending flow path 26 of the drain trap 20, a drain pipe 28 for discharging the wash water to the outside of the urinal 10 is provided. The drain pipe 28 is connected to the drain trap 20 by a connection pipe 27 formed continuously from the downstream end of the rising channel 26. Specifically, the connection pipe line 27 extends in the horizontal direction toward the drain pipe line 28 and is connected to the cylindrical drain pipe line 28 at a connection port 29 connected to the drain pipe line 28. The drain pipe 28 extends in the direction of a sewer pipe (not shown) while gently descending from the upstream side to the downstream side so that the washing water can easily flow. Although the connection pipe line 27 is formed integrally with the drain trap 20, it may be formed as a separate body using a resin or the like.

  An eye plate 30 is detachably installed at the drain port 18. The eye plate 30 is a circular member along the outer shape of the drain port 18. The eye plate 30 is formed slightly larger than the drain port 18. For this reason, the eye plate 30 is placed on the lower part of the bowl surface 12 by the contact between the edge of the drain port 18 and the outer edge 32 of the eye plate 30.

  In the urinal 10 having the above-described configuration, the wash water discharged from the water discharge portion 16 flows downward along the bowl surface 12 and is a plurality of small openings formed in the center portion of the eye plate 30. It flows out from the opening 34 (FIG. 2) to the drain trap 20. By placing the eye plate 30, foreign matter larger than the small opening 34 can be prevented from entering the drain trap 20. Further, on the bottom surface of the eye plate 30, a spiral portion 36 which is a water flow changing means described later is provided.

  Next, the spiral portion 36 installed in the eye plate 30 will be described with reference to FIGS. FIG. 2 is a top view of the eye plate 30. The eye plate 30 is formed like a circular bowl having a flat bottom. Three small openings 34 for allowing the washing water to flow into the drain trap 20 are provided at the center of the lower part (bottom part) of the eye plate 30. The small opening 34 is provided so as to penetrate from the inner bottom surface of the eye plate 30 to the lower surface.

  A spiral portion 36 which is a water flow changing means is integrally formed on the lower surface of the eye plate 30. The spiral structure of the spiral portion 36 is such that a plate having a certain width from the center of the lower surface of the eye plate 30 faces the plate surface in a substantially vertical direction and the radius is constant with a size smaller than the radius of the eye plate 30. It is formed to extend so as to descend downward in the vertical component with respect to the rotation surface while rotating. The spiral structure of the spiral portion 36 is spiraled three turns counterclockwise as viewed from above. The width and the number of turns of the spiral structure are appropriately set based on the shape and diameter of the drain trap 20.

  As shown in FIG. 4, when the eye plate 30 is placed on the lower portion of the bowl surface 12, the spiral portion 36 extending downward from the lower portion of the eye plate 30 is positioned in the descending flow path 22 of the drain trap 20. Thus, the spiral portion 36 located in the descending flow path 22 of the drain trap 20 guides the cleaning water flowing on the outer peripheral side in the bent portion 24 to the inner peripheral side in the bent portion 24 as described later. In particular, the spiral portion 36 generates a swirling flow in the cleaning water flowing in the drain trap 20, thereby guiding the cleaning water flowing on the outer peripheral side in the bent portion 24 to the inner peripheral side in the bent portion 24. In the present embodiment, the spiral portion 36 is disposed on the upstream side of the bent portion 24 in the drain trap 20 and is provided as a spiral structure that swirls cleaning water around the flow direction of the drain trap 20. In the present embodiment, the spiral portion 36 configured integrally with the eye plate 30 is provided as a configuration for generating a swirling flow in the wash water flowing in the drain trap 20, but as such a configuration, In addition to the spiral shape portion such as the spiral portion 36, for example, a projection portion or a ridge portion formed so as to generate a swirling flow on the inner wall of the drain trap 20 may be used.

  Next, the flow of the washing water in a state where the eye plate 30 having the spiral portion 36 is installed in the lower part of the bowl surface 12 will be described. The washing water discharged from the water discharger 16 flows downward along the bowl surface 12 and is discharged from the small opening 34 of the eye plate 30 to the drain trap 20. As the wash water discharged from the small opening 34 flows along the spiral portion 36 located in the descending flow path 22, a swirl flow by the wash water is formed. The washing water that has been swirled by the spiral portion 36 by passing through the descending flow path 22 guides the flow on the outer peripheral side of the bent portion 24 to the inner peripheral side, and swirls as indicated by the arrow A when passing through the ascending flow path 26. As it is, it flows downstream of the drain trap 20. That is, the swirl flow generated by the spiral portion 36 in the descending flow path 22 is maintained even after passing through the bent portion 24 and proceeds in the ascending flow path 26. The swirling flow is a flow in which the fluid flows while rotating around a certain axis parallel to the flow direction.

  By making the washing water flowing into the drain trap 20 by the spiral portion 36 into a swirl flow, compared to the case where the eye plate 30 without the spiral portion 36 is installed, that is, when the spiral portion 36 does not exist in the descending flow path 22. The flow of cleaning water in the flow path of the drain trap 20 is disturbed. That is, by causing the spiral portion 36 to generate a swirling flow in the drain trap 20, a stirring action can be obtained with respect to the wash water flowing in the drain trap 20. Thereby, the stagnation which generate | occur | produces in the flow-path inner peripheral side immediately after the bending part 24 of the ascending flow path 26 can be negated. One cause of this stagnation is that the flow of a part of the ascending flow path 26 flows backward as shown by an arrow B as shown in FIG. Specifically, the stagnation that occurs in the drain trap 20 is due to a change in the flow of cleaning water in the bent portion 24. Of the liquid flowing in the bent portion 24, the liquid flowing in the outer peripheral portion flows along the inner wall surface on the outer peripheral side of the bent portion 24 to the connection pipe line 27 as indicated by an arrow C. On the other hand, the liquid flowing in the inner peripheral side portion of the bent portion 24 flows backward as indicated by an arrow B downstream from a certain position.

  With the shape of the conventional drain trap 20, even if an attempt is made to replace the liquid with a high urine concentration by flowing the wash water after urination, a reverse flow occurs in a part of the ascending flow path 26, and the liquid with a high urine concentration stagnates in that part. The liquid is not discharged, and the remaining amount in the drain trap 20 is reduced.

  Therefore, eliminating the stagnation using the swirl flow leads to an improvement in the replacement rate. Therefore, using the spiral portion 36, the cleaning water flowing on the inner peripheral side of the bent portion 24 is guided to the outer peripheral side, whereas the cleaning water flowing on the outer peripheral side of the bent portion 24 is guided to the inner peripheral side. By changing the water flow, a swirl flow that rotates with respect to the flow direction of the flow path is generated. As a result, the wash water in the drain trap 20 is agitated, the stagnation generated in a part of the ascending flow path 26 is eliminated by the swirling flow, and the liquid having a high urine concentration is discharged to the drain pipe 28 to The replacement rate of the stored water in the trap 20 can be increased.

  Next, another embodiment will be described with reference to FIG. This other embodiment is different from the above-described embodiment in that a water flow changing means for generating a swirling flow is provided in the eye plate 30 itself instead of the spiral portion 36.

  As shown in FIG. 6, a small opening 34 is provided on the inner bottom surface of the eye plate 30. The small openings 34 are arc-shaped elongated holes, and three arc-shaped hole shapes are provided at equal intervals in the circumferential direction of the eye plate 30 along the outer shape of the circular eye plate 30. As described above, the eye plate 30 having the plurality of small openings 34 is a portion that is outside the small openings 34 and has a substantially annular outer peripheral portion, and a portion that is inside the small openings 34 and has a substantially disk shape. It becomes the aspect which has a center part and the connection part which is a part between the small openings 34 mutually adjacent, and connects an outer peripheral part and a center part.

  A groove 38 as a water flow changing means is formed on the surface of the eye plate 30 so as to be continuous with the small opening 34. The groove 38 is gently curved clockwise from one end in the longitudinal direction of the small opening 34 provided at the center of the eye plate 30 toward the outer edge 32 of the eye plate 30 as viewed from above. In the present embodiment, one groove 38 is provided in each small opening 34 so as to be continuous with the counterclockwise end of the small opening 34 in a top view. Therefore, the eye plate 30 has three grooves 38. The three grooves 38 are gently curved as described above, and generate a spiral flow in a counterclockwise direction when the eye plate 30 is viewed from the top, that is, a swirl flow.

  By installing the eye plate 30 in which the three grooves 38 are formed in the urinal 10, the washing water can be guided to the drain trap 20 as a swirling flow. Specifically, the wash water discharged from the water discharge section 16 flows along the bowl surface 12 to the lower portion of the urinal 10 and is discharged from the small opening 34 of the eye plate 30 to the drain trap 20. A part of the washing water toward the small opening 34 is discharged from the small opening 34 through a groove 38 provided on the surface of the eye plate 30. The washing water that flows along the groove 38 obtains a rotational force in the counterclockwise direction, is turned into a swirling flow, and is discharged from the small opening 34 to the drain trap 20. By this swirl flow, it is possible to cancel the stagnation generated in a part of the ascending flow path 26.

  Further, another embodiment will be described with reference to FIGS. In this other embodiment, instead of the spiral portion 36 or the groove 38, water flow changing means for guiding the cleaning water flowing on the outer peripheral side of the bent portion 24 to the inner peripheral side is provided at the bottom portion of the bent portion 24. Different from the above-described embodiment.

  The deflection unit 40 which is a water flow changing means is provided on the inner wall of the drain trap 20. Specifically, the deflection unit 40 is a plate-like member provided at the bottom of the bent portion 24 and having a predetermined width. The bent portion 40 extends from the bottom of the bent portion 24 toward the upper right direction (upper right direction in FIG. 7). It extends while bending along the outer shape of 24.

  The washing water flowing on the outer peripheral side of the bent portion 24 by the deflecting portion 40 collides with the deflecting portion 40 and is guided to the inner peripheral side of the bent portion 24 as indicated by the arrow D, so that the left side of the ascending flow path 26 where stagnation occurs The washing water collides with (inner side, left side in FIG. 8), and the stagnation can be canceled.

  As described above, according to the urinal 10 according to the present embodiment, the washing water flowing on the outer peripheral side of the bent portion 24 is guided to the inner peripheral side of the bent portion 24 using the water flow changing means, so The water replacement rate can be increased.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various forms without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Urinal 12 Bowl surface 14 Water supply pipe 16 Water discharge part 18 Drainage port 20 Drainage trap 22 Downflow flow path 24 Bending part 26 Upflow flow path 27 Connection pipe line 28 Drainage pipe line 29 Connection port 30 Eye plate 32 Outer edge 34 Small opening 36 Spiral Part 38 groove 40 deflection part

Claims (5)

A urinal for washing the bowl with washing water,
A water discharger for discharging and cleaning water in the bowl part;
A drainage trap having a return channel that changes the flow of washing water flowing downward from the drainage port provided at the bottom of the bowl part, and
A urinal characterized in that the drain trap is provided with water flow changing means for guiding the wash water flowing on the outer peripheral side in the folding channel to the inner peripheral side in the folding channel.   The urinal according to claim 1, wherein the water flow changing means generates a swirling flow in the wash water flowing in the drain trap.   The said water flow change means is arrange | positioned in the upstream of the said return flow path in the said drain trap, It is a spiral structure which turns wash water on the flow direction of a drain trap as an axis | shaft. urinal. Having a pan that is detachably attached to the drain;
The urinal according to any one of claims 1 to 3, wherein the water flow changing means is provided in the eye plate.   The urinal according to claim 1, wherein the water flow changing means is formed on an inner wall of the drain trap.

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