JP6631768B2 - urinal - Google Patents

Description

  The present invention relates to a urinal, and more particularly, to a urinal that receives and discharges urine.

Normally, in urinals that receive and discharge urine, urine stones attached to a drain trap that forms water sealing downstream of a drain port at the bottom of a bowl portion that forms a bowl surface for receiving urine are used for cleaning. The brush can be removed to some extent by inserting the brush into the drain trap and performing normal cleaning in which the brush is cleaned.
However, the urine stones attached to the connection pipe connected to the rear side (downstream side) of the drain trap and the connection between the connection pipe and the drain pipe outside the urinal, and further deposited, Because it is also a part where normal cleaning such as cleaning by inserting a cleaning tool such as a brush into these conduits is difficult, the attached urine stones gradually grow and the accumulation amount increases, and finally, There is a problem that the connection pipe and the drain pipe may be blocked.

When urine stones adhere to and accumulate in a connection pipe connected to the rear side (downstream side) of such a drain trap or a connection between the connection pipe and a drain pipe outside the urinal. Since it is difficult to perform normal cleaning such as cleaning by inserting a cleaning tool as described above, the urinal is temporarily removed from the urinal once every predetermined period in order to remove such urine stone. After being removed from the road, it is necessary to dissolve the urine stone with a chemical, pass through a tool like a grindstone for abrading the urine stone, or remove it by high-pressure cleaning.
However, such a removal process is not only costly, but also makes it impossible to use the toilet during a maintenance operation, so that it is a large-scale processing operation and cannot be easily performed.

Therefore, in order to solve such a problem, for example, in the conventional urinal described in Patent Document 1, a cleaning tool can be inserted into a rear bottom surface of a bowl portion located above an outflow portion of a drain trap. Opening (cleaning opening) is formed. In addition, a short cylindrical socket is fixed to the opening, and an obturator integrally formed with a plate covering the drain port on the upstream side of the drain trap is detachably attached to the socket. ing. Further, a projection surface obtained by projecting the opening cross section of the opening toward the drain trap along the central axis is formed at an upper portion of the outflow portion of the drain trap, and by removing the closing member, a cleaning tool is inserted from the opening. And the vicinity of the outflow portion on the downstream side of the drain trap can be cleaned.
Further, in the conventional urinal described in Patent Document 2, a through hole (cleaning opening) into which a high-pressure hose for supplying washing water can be inserted is provided on a rear bottom surface of a bowl portion located above an outflow portion of a drain trap. Is formed. A projection surface obtained by projecting an opening cross section of the through hole toward the drain trap along the central axis is formed at an upper portion of an outflow portion of the drain trap, and a high-pressure hose for supplying cleaning water is inserted into the through hole to perform cleaning. By injecting high-pressure washing water from the end of the water supply high-pressure hose, it is possible to wash the drain pipe connected to the outside on the rear side (downstream side) of the urinal without removing the urinal. Has become.

JP-A-6-60684 Japanese Utility Model Publication No. 2-78682

However, in the conventional urinal described in Patent Literature 1 described above, the cleaning port is provided with a downstream flow from an outflow portion on the downstream side of the drain trap to a drain port to which a drain pipe outside the urinal is connected. Because it is located below the upper end of the road, when the flush water containing urine is repeatedly filled with water in the downstream flow path of the urinal when the urinal is drained, the cleaning port and its vicinity The urine stones adhere to the socket and the obturator, and the obturator adheres to the socket due to such adhesion of urine, and there is a problem that the detachment cannot be performed.
Similarly, also in the conventional urinal described in Patent Document 2 described above, the cleaning port into which the high-pressure hose for flushing water supply can be inserted has a drain connected to the flow path on the downstream side of the outlet of the drain trap. Because it is located lower than the upper end of the pipe, if urine-containing washing water is repeatedly filled with water in the drain pipe when the urinal is drained, urolith adheres to the cleaning port and obturator As a result, there is a problem that the obstruction sticks to the cleaning port due to such adhesion of urine, and cannot be detached.

  Therefore, the present invention has been made to solve the above-described problems of the conventional technology, and prevents urine stones from adhering to a cleaning port and a closing tool, thereby preventing a problem in attaching / detaching the blocking tool to / from the cleaning port. It is intended to provide a urinal that can be prevented.

In order to achieve the above object, the present invention relates to a urinal for receiving and discharging urine, a bowl portion forming a bowl surface for receiving urination, and a bowl formed at the bottom of the bowl portion and draining the bottom surface. A drain port where a mouth is formed, a drain trap section formed below the drain port, and forms water sealing downstream of the drain port of the drain port, and a rear side of the drain trap section. A drain chamber formed to wash the bowl surface and discharge the washing water discharged from the drain trap to a discharge section outside the urinal; a wall defining the drain port and the drain chamber; A cleaning port is formed so as to penetrate the drain section, and a cleaning means is inserted into the drain chamber through the cleaning port from the drain port side, thereby cleaning at least the flow path in the drain chamber and the downstream side thereof. The cleaning opening that allows A closing device that is attached to the cleaning port so as to close the cleaning port, wherein the drainage chamber part partially forms a passage connecting the drainage trap part and the discharge part outside the urinal. A lower end portion of the cleaning port of the cleaning port portion is located above an upper edge portion of a connection portion between the connection path portion and the discharge portion outside the urinal; An overflow surface when the water level in the section rises and overflows from the cleaning port to the drain port side is defined, and the drain chamber section has a lower edge of the cleaning port so as to prevent the inside from being filled with water. parts are characterized that you form a space region above the overflow surface stipulated by.
In the invention configured as above, the washing water that has washed the urine in the bowl portion flows toward the drain port along the bowl surface, flows into the drain trap portion from the drain port of the drain port, and then drains. The water is discharged into the drain chamber on the rear side (downstream side) of the trap section, and is discharged from the connection passage portion of the drain chamber to the discharge section outside the urinal. In particular, the lower edge of the cleaning port of the cleaning port is located above the upper edge of the connection between the connection passage of the drainage chamber and the discharge section outside the urinal, and the water level in the drainage chamber is Is defined as the overflow surface when the water rises and overflows from the cleaning port to the drain port side, so that the washing water containing urine flowing into the drain chamber from the rear side (downstream side) of the drain trap section is drained. Even if the water level rises in the chamber, the water level remains at most at the water level corresponding to the upper edge of the connection between the connection passage portion of the drainage chamber and the discharge portion outside the urinal. Therefore, the washing water containing urine in the drainage chamber is located below the cleaning port of the cleaning port located above the upper edge of the connection between the connection passage of the drainage chamber and the discharge part outside the urinal. Since the urine is discharged from the connection passage of the drainage chamber to the discharge portion outside the urinal without reaching the overflow surface defined by the edge portion, the urolith adheres to the cleaning port of the cleaning port and its vicinity and the obturator. Can be suppressed. Therefore, when attaching and detaching the obturator from the cleaning port with the cleaning of the urinal, it is possible to prevent a problem of detachment from being caused by urine stones adhering to the obturator and the cleaning port of the cleaning port. it can.
In addition, since the drain chamber has a space above the overflow surface defined by the lower edge of the cleaning port to prevent the inside of the cleaning port from being filled with water, the cleaning port of the cleaning port and its vicinity are formed. It is possible to suppress the urine stones from adhering to the whole or the obturator. Therefore, when attaching and detaching the obturator from the cleaning port with the cleaning of the urinal, it is possible to prevent a problem of detachment from being caused by urine stones adhering to the obturator and the cleaning port of the cleaning port. it can.

In the present invention, the overflow surface defined by the lower edge of the cleaning port is preferably located above the upper end of the drain port of the drain port.
In the invention configured as described above, the overflow surface defined by the lower edge of the cleaning port is located above the upper end of the drain port of the drain port, so that the obturator closes the cleaning port. Even if the water level rises in the drainage chamber and reaches the overflow surface, and overflows from the cleaning port to the drain port side, the drain water that overflows to the drain port side is drained despite the state Water can be smoothly drained from the mouth into the drain trap section.

In the present invention, preferably, the drainage chamber portion includes a connection passage portion that partially forms a passage connecting the drainage trap portion and the discharge portion outside the urinal, and the drainage trap portion includes the drainage trap portion, A downward pipeline extending downward from the drainage port of the drainage port, and a rising pipeline folded upward from the lower end of the downward pipeline and extending upward, the upstream end of the connection passage portion having the upstream end The cleaning port is connected to the rear end of the ascending conduit of the drain trap section, and a projection surface of the cleaning port, which projects an opening cross section along the central axis toward the connection passage section, is provided on a bottom surface of the connection passage section. It is formed in the cleaning port as it is formed.
In the invention configured as described above, the projection surface obtained by projecting the opening cross section of the cleaning port of the cleaning port along the central axis toward the connection passage portion is small in size with the rear end of the ascending conduit of the drain trap portion. When the urinal is cleaned, the entire urinal is discharged from the urinal outside by being formed on the bottom surface of the connection passage of the drainage chamber that forms a passage connecting the urinal outside. By simply removing the obturator from the cleaning port without removing it, for example, the cleaning means can be inserted from the drain port side into the drain chamber via the cleaning port. This makes it possible to easily and reliably clean the vicinity of the bottom surface of the connection passage portion of the drainage chamber portion formed on the rear side (downstream side) of the drain trap portion. Therefore, it is possible to prevent urine stones from adhering and depositing near the bottom surface of the connection passage portion of the drainage chamber portion on the rear side (downstream side) of the rear end portion of the ascending conduit of the drainage trap portion. To prevent the drainage clogging of the connection passage portion discharged from the drainage trap portion.

In the present invention, preferably, the drainage chamber portion includes a connection passage portion that partially forms a passage connecting the drainage trap portion and the discharge portion outside the urinal, and the cleaning port has an opening. The cleaning port is formed such that a projection surface obtained by projecting a cross section toward the connection passage along the central axis is formed at a downstream end of the connection passage.
In the invention configured as described above, the projection surface obtained by projecting the opening cross section of the cleaning port of the cleaning port toward the connection passage along the central axis is provided at the downstream end of the connection passage of the drainage chamber. By forming the urine stones, it is easy to remove the obturator from the cleaning port in the connection passage, where the urine stones easily adhere and accumulate, in particular, the downstream end of the connection passage connected to the discharge unit outside the urinal. Thus, it is possible to more reliably confirm whether urine stones are attached to the inside of the connection passage (particularly, the downstream end of the connection passage) by simple visual observation. Also, when cleaning the urinal, without removing the entire urinal from the discharge section outside the urinal, just removing the obturator from the cleaning port, for example, cleaning means from the drain port side to the cleaning port And can be inserted into the drainage chamber section. This makes it possible to easily and reliably clean the vicinity of the downstream end of the connection passage in the drainage chamber to which the discharge section outside the urinal is connected. Therefore, it is possible to prevent urine stones from adhering and accumulating near the downstream end of the connection passage portion of the drainage chamber portion, and to wash the bowl surface and discharge the drainage of the connection passage portion discharged from the drain trap portion. Clogging can be prevented.

  ADVANTAGE OF THE INVENTION According to the urinal of this invention, by preventing urine stone from adhering to a cleaning port and a closure, the trouble of attaching / detaching the closure with respect to a cleaning port can be prevented.

1 is a side sectional view of a urinal according to an embodiment of the present invention. FIG. 2 is a partially enlarged side sectional view showing an enlarged lower region of a toilet body of the urinal according to the embodiment of the present invention shown in FIG. 1. 1 is a plan view of a urinal according to an embodiment of the present invention. FIG. 3 is a partially enlarged side sectional view in which a drain port, a cleaning port, and a drain chamber are further enlarged in a lower region of a toilet body of the urinal according to the embodiment of the present invention shown in FIG. 2.

Hereinafter, a urinal according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side sectional view of a urinal according to an embodiment of the present invention.
First, as shown in FIG. 1, a urinal 1 according to an embodiment of the present invention includes a ceramic toilet body 2 installed on a floor or a wall in a toilet space. The toilet body 2 has a bowl portion 4 formed in a bowl shape on the front side thereof, and the surface of the bowl portion 4 forms a smooth bowl surface 4a for receiving urination of the user.
Further, a water spouting device 6 for spouting washing water for washing the bowl surface 4a is provided in a region above the bowl surface 4a of the toilet body 2, and the washing water is supplied to the back side of the water spouting device 6. The water supply pipe 6a is connected.

Next, as shown in FIG. 1, the vertical section of the bowl surface 4a has a generally J-shaped hook shape as a whole from the upper region to the lower region.
A drain port 8 is formed at the bottom of the bowl 4 formed below the bowl surface 4 a of the bowl 4.
The drain port 8 has a concave portion which is generally recessed downward, and a drain port 8a penetrating in a vertical direction is formed on the bottom surface of the drain port 8. 8 is formed so as to surround the periphery of the drain port 8a. That is, the drain port 8 is formed at the lowest position in the drain port section 8 in a region below the bowl surface 4a.

Next, as shown in FIG. 1, a drain trap section 10 is formed below the drain port 8 of the toilet body 2. The drain trap 10 includes a descending pipe 12 extending downward from a drain port 8 a of the drain port 8, and an ascending pipe 14 that is continuously folded from the lower end of the descending pipe 12 and extends upward. I have.
Wash water is stored in the drain trap 10 in order to prevent odor and the like from sewage from entering the bowl surface 4a of the toilet body 2 and the surrounding toilet space. Has been water. That is, in the drain trap section 10, water is sealed below (downstream side) the drain port 8 provided at the bottom of the bowl section 4. More specifically, in the drain trap section 10, washing water is formed in a continuous portion of the descending pipeline 12 and the ascending pipeline 14, that is, in a folded portion of the drain trap section 10, so that water is sealed. It has become.

Next, FIG. 2 is a partially enlarged side sectional view in which a lower region portion of a toilet body of the urinal according to the embodiment of the present invention shown in FIG. 1 is enlarged.
As shown in FIGS. 1 and 2, on the rear side (downstream side) of the rising pipe 14 of the drain trap section 10 of the toilet body 2, the bowl surface 4 a is washed and the drain trap section 10 descends from the drain port 8. A drainage chamber 18 is formed to discharge the washing water (drainage) flowing into the pipe 12 and discharged from the rising pipe 14 to the drain pipe 16 on the outer side of the back of the toilet body 2.
As shown in FIG. 2, a connection passage portion 20 which is connected to the rear end of the rising pipe 14 of the drain trap portion 10 and forms a connection passage extending rearward is provided in a region below the drainage chamber 18. The rear end of the connection passage 20 is connected to the drainage pipe 16 on the outside of the back of the toilet body 2.
In the present embodiment, a mode in which the rear end of the connection passage 20 is connected to the drain pipe 16 will be described. However, the connection passage 20 and the drain pipe 16 are connected via a drain socket (not shown) or the like. May be connected. The connection passage portion 20 of the drainage chamber 18 is described as being formed integrally with the ascending conduit 14 of the drainage trap portion 10, but is formed separately from the drainage trap portion 10 using a resin or the like. May be done.

Next, as shown in FIG. 1 and FIG. 2, an inclined wall 22 that is inclined obliquely upward from the drain port 8 a toward the rear side is formed. A region R2 in the chamber 18 is partitioned.
The inclined wall 22 is provided with a cleaning port 26 that forms a cleaning port 24 that penetrates the drain port 8 and the drain chamber 18 so as to communicate with each other. By inserting a cleaning tool (not shown) such as a brush or a high-pressure cleaning water nozzle, which is a cleaning means, from the drain port 8 side into the drain chamber 18 through the cleaning port 24 of the cleaning port 26, the drain chamber is formed. It is possible to clean the ascending pipeline 14 of the drain trap unit 10 on the upstream side from the drain 18, the connection passage 20 of the drain chamber 18, and the drain pipe 16 on the downstream side thereof.

Next, as shown in FIGS. 1 and 2, a closing member 28 (to be described in detail later) for closing the cleaning port 24 is detachably attached to the cleaning port 26 via a seal member 30 such as packing. ing.
As shown in FIGS. 1 and 2, a perforated plate 32 is detachably attached to the drain port 8 from above. When the perforated plate 32 is attached to the drain port 8, it is spaced apart from all of the drain port 8 a, the cleaning port 26, and the closing device 28 attached to the cleaning port 26 from above. By covering, the entire area inside the drain port 8 is concealed.
In addition, in the urinal 1 of the present embodiment, as an example, a description will be given of a form in which the perforated plate 32 is detachably attached to the drain port 8 from above, but the perforated plate 32 may be omitted.

Next, FIG. 3 is a plan view of a urinal according to an embodiment of the present invention. FIG. 4 is a partially enlarged side cross-sectional view in which a drain port, a cleaning port, and a drain chamber are further enlarged in a lower region of a toilet body of the urinal according to the embodiment of the present invention shown in FIG. FIG.
As shown in FIGS. 3 and 4, the outer peripheral edge 34 of the perforated plate 32 and the inner peripheral edge 36 of the drain port 8 are formed in a substantially elliptical shape when viewed from above.
In addition, as shown in FIGS. 3 and 4, when the perforated plate 32 is attached to the drain port 8, there is substantially no space between the outer peripheral edge 34 of the perforated plate 32 and the inner peripheral edge 36 of the drain port 8. A slight gap G is formed over the entire circumference.

Next, as shown in FIGS. 2 and 3, the opening section S1 of the cleaning port 24 has a substantially circular cross section, and a substantially cylindrical closing member 28 described in detail later in the cleaning port 24 has a drain port portion. By being detachably attached from the 8 side, the cleaning port 24 is closed.
The shape of the opening cross section S1 of the cleaning port 24 is not limited to a circular shape, but may be, for example, an elliptical shape or a polygonal shape.

Further, in a state where the obturator 28 is removed from the cleaning port 24, a projection surface S2 that projects the opening cross section S1 of the cleaning port 24 toward the connection passage portion 20 along the central axis A1 passing through the center C1 thereof is virtual. It is formed in a predetermined region R3 within a range between the line L1 and the virtual line L2.
Further, the predetermined region R3 is formed rearward from the vicinity of an intermediate portion in the front-rear direction on the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18 intersecting with the virtual line L1, and has a substantially cylindrical shape on the back side of the toilet body 2. The front end 16a (upstream end) of the drainage pipe 16 is connected to the bottom end 38a of the connection port 38 of the rear end (downstream end) 20b of the connection passage portion 20 of the drainage chamber 18 that intersects the imaginary line L2. Are formed over the region of FIG. As a result, when viewed from above along the central axis A1 of the cleaning port 24, the inner surface of the drain pipe 16 near the rear side of the connection port 38 from the bottom surface 20a of the connection passage portion 20 of the drain chamber 18 near the front side of the connection port 38. A region R3 corresponding to the projection surface S2 up to 16b is visible.
Furthermore, when the urinal 1 is cleaned, when the person to be cleaned faces the cleaning port 24 in front of the urinal 1 with the obturator 28 removed, the vicinity of the connection between the connection port 38 and the drainage pipe 16 is reduced. The cleaning operation can be performed by inserting a cleaning tool (not shown) into the cleaning port 24 while visually confirming whether or not the urine stone has been removed by the cleaning tool (not shown). I have.
In particular, the bottom surface 20a of the connection passage portion 20 where urine stones easily accumulate, the bottom surface 16b of the drainage pipe 16, and the connection portion between the rear end portion 20b of the connection passage portion 20 and the front end portion 16a of the drainage pipe 16 at the connection port 38. The urine stone near the step B (see FIG. 4) can be reliably removed by a cleaning tool (not shown) inserted from the cleaning port 24.

Next, as shown in FIG. 4, the position P1 of the height H1 of the front lower edge 24a of the cleaning port 24 of the cleaning port 26 with respect to the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18 is The position of the height H2 with respect to the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18 at the front end upper edge 16c in the drainage pipe 16 outside the urinal 1, which is the connection portion connected to the connection port 38 of the connection passage portion 20. It is located above P2. The front lower edge 24a of the cleaning port 24 defines an overflow surface W0 when the water level in the drain chamber 18 rises and overflows from the cleaning port 24 of the cleaning port 26 to the drain port 8 side. The overflow surface W0 is higher than the water level W1 (see FIG. 4) corresponding to the height position P2 of the front end upper edge portion 16c in the drainage pipe 16 connected to the connection port 38 of the connection passage portion 20 of the drainage chamber 18. It is located above. In addition, the position P1 of the height H1 of the front lower edge portion 24a of the cleaning port 24 of the cleaning port portion 26 with respect to the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18 is higher than the height position of the front end portion of the bowl portion 4. It is located below.
As a result, the washing water containing urine flowing into the drainage chamber 18 from the rear side (downstream side) of the ascending pipe 14 of the drainage trap section 10 is drained even if the water level in the drainage chamber 18 rises. At the water level W1 (see FIG. 4) corresponding to the height position P2 of the front end upper edge portion 16c in the drain pipe 16 connected to the connection port 38 of the connection passage portion 20 of FIG. Therefore, the washing water containing urine in the drainage chamber 18 does not reach the overflow surface W0 defined by the front lower edge 24a of the cleaning port 24 of the cleaning port 26, and from the connection passage 20 of the drainage chamber 18. Since the urine is discharged to the drainage pipe 16 outside the urinal, it is possible to prevent urine stones from adhering to the cleaning port 24 of the cleaning port 26 and its vicinity and the obturator 28.
It should be noted that the upper edge of the connection portion between the connection passage portion and the discharge portion outside the urinal according to the present invention is not limited to the front end upper edge portion 16c in the drainage pipe 16, and for example, via a drainage socket. When the connection passage 20 is connected to the drainage pipe 16 by using the upper end of the inner wall surface of the drain socket, or the upper end of the inner wall surface of the connection port 38 of the connection passage 20.

Next, as shown in FIG. 4, the overflow surface W0 defined by the lower edge 24a on the front side of the cleaning port 24 of the cleaning port 26 is formed by drainage of the drain port 8 with respect to the bottom surface 20a of the connection passage 20 of the drain chamber 18. It is located above the position P3 at the height H3 of the upper end of the mouth 8a.
That is, since the overflow surface W0 defined by the front lower edge 24a of the cleaning port 24 of the cleaning port 26 is located above the upper end of the drain port 8a of the drain port 8, the obturator 28 is cleaned. In spite of the state that the cleaning port 24 of the mouth 26 is closed, the water level rises in the drain chamber 18 and reaches the overflow surface W0, and overflows from the cleaning port 24 to the drain port 8 side. Also, the drain water overflowing to the drain port 8 side can be smoothly drained from the drain port 8a into the drain trap unit 10.

  Next, as shown in FIG. 4, the drainage chamber 18 is located above the overflow surface W0 defined by the lower edge 24a on the front side of the cleaning port 24 of the cleaning port 26 so as to prevent the inside thereof from being filled with water. A space region R2 is formed. Thereby, it is possible to suppress the urine stones from adhering to the cleaning port 24 of the cleaning port section 26 and the vicinity thereof and the obturator 28 as a whole. Therefore, when the obturator 28 is attached to and detached from the cleaning port 26 with the cleaning of the urinal 1, the urine stones adhere to the obturator 28 and the cleaning port 24 of the cleaning port 26. Can be prevented from occurring.

Next, the details of the urinal obstruction device of the present embodiment will be described with reference to FIG.
First, as shown in FIG. 4, the closing member 28 of the urinal 1 of the present embodiment is attached to the cleaning port 24 of the cleaning port 26 of the inclined wall 22 by being inserted from the drain port 8 side and attached thereto. 40.
The base member 40 has an insertion hole 40a penetrating vertically along the center axis A2, and a lower cylindrical portion 40b whose lower portion is inserted into the cleaning port 24; A skirt portion 40c protrudes radially outward from the upper end of the portion 40b along the circumferential direction.

  Next, as shown in FIG. 4, in a state where the lower cylindrical portion 40 b of the base member 40 is inserted into the cleaning port 24, the obturator 28 has an outer surface of the lower cylindrical portion 40 b and an inner surface of the skirt portion 40 c. And a sealing member 30 such as packing disposed in a region surrounded by the drain port side surface 22a of the inclined wall 22. The seal member 30 separates the cleaning port 24 and the closing member 28 by the seal member 30 so that odor and sanitary pests in the internal region R2 of the drain chamber 18 do not enter the drain port 8 from the cleaning port 24. Without being completely sealed.

Next, as shown in FIG. 4, the obturator 28 is inserted and attached to the insertion hole 40 a of the base member 40, and the obturator 28 can be locked to the cleaning port 26 of the inclined wall 22 from below. The lower locking member 42 is provided.
The lower locking member 42 is formed with a female screw hole 42a having a predetermined depth along the central axis A2 from the upper end to the bottom.
Further, as shown in FIG. 4, a lower end of the lower locking member 42 is formed with a protruding portion 42b that protrudes radially outward from a part of the outer periphery. When the obturator 28 is attached to the cleaning port 26 of the inclined wall 22, the tip of the protrusion 42 b of the lower locking member 42 is located forward and downward, and the upper surface of the protrusion 42 b is located on the drain chamber 18 side. Abuts against the drain chamber side 22b of the inclined wall 22 so that the inclined wall 22 of the cleaning port 26 is positioned on the skirt portion 40c and the sealing member 30 of the base member 40 on the drain port 8 side, and the lower side of the drain chamber 18 side. The locking member 42 is sandwiched between and held by the protruding portion 42b.

Next, as shown in FIG. 4, the closing device 28 includes a male screw member 44 provided with a male screw 44 a inserted from above the base member 40 and screwed into the female screw hole 42 a of the lower locking member 42. Have. When the male screw member 44 is attached and detached, a tool (not shown) for attaching and detaching the male screw member is fitted into the head portion 44b of the male screw member 44 and rotated in a predetermined direction about the central axis A2. Then, the male screw member 44 rotates around its central axis A2, and the male screw 44a of the male screw member 44 and the female screw hole 42a of the lower locking member 42 are screwed with each other, and the inclined wall 22 with respect to the cleaning port 26 is cleaned. The degree of attachment of the obturator 28 is strengthened.
On the other hand, by turning a tool (not shown) around the center axis A2 in a direction opposite to the predetermined direction, the male screw 44a of the male screw member 44 and the female screw hole 42a of the lower locking member 42 are mutually screwed. The vehicle is moved backward, and the degree of attachment of the closing device 28 to the cleaning port 26 of the inclined wall 22 is loosened.

Next, as shown in FIG. 4, the closing device 28 includes a seal member 48 such as an O-ring attached to the outer peripheral portion 44 c of the head portion 44 b of the male screw member 44.
Further, the base member 40 includes an upper cylindrical portion 40d formed in a cylindrical shape upward from the vicinity of the upper end of the lower cylindrical portion 40b, and when the obturator 28 is attached to the cleaning port 26, the base member 40 The space between the inner peripheral surface of the upper cylindrical portion 40d and the outer peripheral portion 44c of the head portion 44b of the male screw member 44 is sealed by a seal member 48. As a result, the washing water containing urine in the drain port 8 and outside the obturator 28 is flushed with the inner peripheral surface of the upper cylindrical portion 40d of the base member 40 and the outer peripheral portion 44c of the head portion 44b of the male screw member 44. The washing water containing the urine is prevented from entering the inside of the upper cylindrical portion 40d of the base member 40 from between, and the insertion hole 40a of the base member 40, the female screw hole 42a of the lower locking member 42, and After reaching the male screw 44a of the male screw member 44, it can be prevented from adhering as urine stone.

  Further, as shown in FIG. 4, the outer diameter of the lower cylindrical portion 40b of the base member 40 is set smaller than the diameter of the opening cross section S1 of the cleaning port 24, and the obturator 28 is attached to the cleaning port 26. In the closed state, the central axis A2 of the obturator 28 is located below and parallel to the central axis A1 of the cross section S1 of the opening of the cleaning port 24.

Next, the operation of the urinal according to the embodiment of the present invention will be described with reference to FIGS.
In the urinal 1, after the user urinates into the bowl portion 4, the water discharging device 6 discharges the washing water supplied from the water supply pipe 6a to the bowl surface 4a. The washing water spouted from the water spouting device 6 flows while washing the bowl surface 4a from above to the drain port 8 below.
Then, the washing water containing the urine that has reached the drain port 8 flows along the upper surface of the perforated plate 32, and a gap G between the outer peripheral edge 34 of the perforated plate 32 and the inner peripheral edge 36 of the drain port 8 (FIG. 2). After flowing through the drain port 8 after passing through the drain port 8a (see FIG. 3).
At this time, since the cleaning port 24 and the obturator 28 are completely sealed by the seal member 30 without any gap, the cleaning water flowing along the drain port side surface 22a of the inclined wall 22 in the drain port 8 is cleaned. Instead of flowing into the port 24, it flows toward the drainage port 8a bypassing the base member 40 of the obturator 28.
Thereafter, the washing water flowing into the descending conduit 12 of the drain trap unit 10 from the drain outlet 8 pushes urine accumulated in the drain trap unit 10 to the downstream rising conduit 14, and from the rising conduit 14 to the drain chamber 18. The washing water flowing into the inside flows through the connection passage section 20 to the downstream side, and drains urine from the connection port 38 into the drainage pipe 16.

Next, a method of cleaning the connection passage portion 20 and the drain pipe 16 downstream of the drain trap portion 10 of the urinal 1 according to one embodiment of the present invention will be described.
First, the cleaning person removes the perforated plate 32 from the drain port 8 in preparation for cleaning the connection passage portion 20 and the drain pipe 16 downstream of the drain trap portion 10 of the urinal 1.
Thereafter, in order to remove the obturator 28 attached to the cleaning port 26, a tool (not shown) for attaching and detaching a male screw member is fitted into the head portion 44b of the male screw member 44 of the obturator 28 from above, and the tool ( (Not shown) around the central axis A2 in a predetermined direction, thereby rotating the male screw member 44 about the central axis A2, and thereby the male screw 44a of the male screw member 44 and the female screw hole 42a of the lower locking member 42. Is rotated in a direction in which the screwing of the oblique wall 22 is released, and the degree of attachment of the obturator 28 to the cleaning port 26 of the inclined wall 22 is loosened.
As a result, the inclined wall 22 of the cleaning port 26 is positioned between the skirt portion 40c and the seal member 30 of the base member 40 on the drain port 8 side and the protrusion 42b of the lower locking member 42 on the drain chamber 18 side. Is increased, and the locking of the cleaning port 26 from the drain chamber 18 side to the inclined wall 22 by the lower locking member 42 of the closing device 28 is released.

Next, regarding the obturator 28, the tip of the protrusion 42b of the lower locking member 42 is changed from the state in which the tip of the projection 42b of the lower locking member 42 shown in FIG. After the obturator 28 is rotated about the central axis A2 so as to be directed rearward and upward, the entire obturator 28 is pulled out toward the drain port 8 side with respect to the cleaning port 26 to thereby close the obturator 28. Is removed from the cleaning port 26.
Then, a cleaning tool (not shown) such as a brush or a nozzle for high-pressure cleaning water is inserted into the opened cleaning port 24. Here, when a cleaning tool (not shown) such as a nozzle for high-pressure washing water is used, high-pressure washing water is jetted from the tip of the nozzle (not shown).
Then, urine stones adhering to the connection passage portion 20 and the drainage pipe 16 are removed by high-pressure washing water, extruded downstream, and cleaned.

Instead of using a high-pressure washing water nozzle (not shown), a chemical may be introduced through the opened cleaning port 24 to dissolve urine stone. Further, the urolith may be abraded by passing through a tool (not shown) in the form of a grindstone for abrading the urolith.
By simply removing the closing member 28 from the cleaning port 24 and inserting a nozzle (not shown) of high-pressure washing water or introducing a chemical, the connection passage portion 20 and the drainage pipe 16 can be easily and reliably connected. Since the toilet can be cleaned, the connection passage 20 downstream of the drain trap 10 can be cleaned without removing the urinal 1 from the drain pipe 16, and the cleaning operation can be completed in a short time.
Therefore, even in a public restroom space where there are many users, such as a rest area on an expressway, the user can use the urinal 1 for cleaning the urinal 1 because the cleaning can be performed in a shorter time than before. It is possible to shorten the time during which the operation cannot be performed.

Next, when the cleaning of the urinal 1 is completed, a cleaning tool (not shown) is pulled out from the cleaning port 24 to the drain port section 8 side, taken out, and the closing tool 28 is attached to the cleaning port section 26. At this time, the protruding portion 42b of the lower locking member 42 of the closing device 28 in which the tip of the protruding portion 42b of the lower locking member 42 is directed rearward and upward is inserted into the cleaning port 24. The protruding portion 42b is disposed in the drainage chamber 18 with the tip of the protruding portion 42b directed rearward and upward.
Then, after rotating the entire closing tool 28 around the central axis A2 so that the tip of the protruding portion 42b of the lower locking member 42 is directed forward and downward, the tool (not shown) is closed. Of the male screw member 44 from above, and turning a tool (not shown) around the central axis A2 in a predetermined direction to rotate the male screw member 44 about the central axis A2. The male screw 44a of the 44 and the female screw hole 42a of the lower locking member 42 are rotated in a direction in which the screw is advanced, so that the attachment of the obturator 28 to the cleaning port 26 of the inclined wall 22 is strengthened. Then, the upper surface of the protruding portion 42b comes into contact with the drain chamber side surface 22b of the inclined wall 22 from the drain chamber 18 side, so that the inclined wall 22 of the cleaning port 26 has the skirt portion 40c of the base member 40 on the drain port 8 side and It is sandwiched and held between the seal member 30 and the projection 42b of the lower locking member 42 on the drainage chamber 18 side.
Then, finally, the perforated plate 32 is attached to the inside of the drain port 8, and the urinal 1 can be used.

According to the urinal 1 according to the embodiment of the present invention described above, the flush water that has washed the urine in the bowl portion 4 flows toward the drain portion 8 along the bowl surface 4a, and the drainage of the drain portion 8 is performed. After flowing into the drain trap section 10 through the port 8a, it is discharged into the drain chamber 18 on the rear side (downstream side) of the drain trap section 10 and from the connection passage section 20 of the drain chamber 18 to the drain pipe 16 outside the urinal. Is discharged.
In particular, as shown in FIG. 4, the position P1 of the height H1 of the front lower edge 24a of the cleaning port 24 of the cleaning port 26 with respect to the bottom surface 20a of the connection passage 20 of the drainage chamber 18 is determined by the connection of the drainage chamber 18. The drainage chamber 18 is located above the position P2 of the height H2 with respect to the bottom surface 20a of the connection passage portion 20 at the front end upper edge portion 16c in the drainage pipe 16 connected to the connection port 38 of the passage portion 20, and The front lower edge 24a of the cleaning port 24 defines an overflow surface W0 when the water level in the drainage chamber 18 rises and overflows from the cleaning port 24 of the cleaning port 26 to the drain port 8 side, Further, the overflow surface W0 is higher than the water level W1 (see FIG. 4) corresponding to the height position P2 of the front end upper edge portion 16c in the drainage pipe 16 connected to the connection port 38 of the connection passage portion 20 of the drainage chamber 18. Is also located above.
As a result, the washing water containing urine flowing into the drainage chamber 18 from the rear side (downstream side) of the ascending pipe 14 of the drainage trap section 10 is drained even if the water level in the drainage chamber 18 rises. At the water level W1 (see FIG. 4) corresponding to the height position P2 of the front end upper edge portion 16c in the drainage pipe 16 connected to the connection port 38 of the connection passage portion 20 of FIG. The washing water containing urine does not reach the overflow surface W0 defined by the front lower edge 24a of the cleaning port 24 of the cleaning port 26, and the drainage pipe 16 outside the urinal from the connection passage 20 of the drainage chamber 18. Therefore, it is possible to prevent urine stones from adhering to the cleaning port 24 of the cleaning port section 26 and the vicinity thereof and the obturator 28.
Therefore, when the obturator 28 is attached to and detached from the cleaning port 26 with the cleaning of the urinal 1, the urine stones are adhered to the obturator 28 and the cleaning port 24 of the cleaning port 26, which may cause a problem of detachment. Can be prevented.

  Further, according to the urinal 1 of the present embodiment, as shown in FIG. 4, the overflow surface W0 defined by the front lower edge 24a of the cleaning port 24 of the cleaning port 26 is formed by the connection passage 20 of the drainage chamber 18. Is located above the position P3 of the height H3 of the upper end of the drain port 8a of the drain port 8 with respect to the bottom surface 20a of the drain port 8, and the overflow surface defined by the front lower edge 24a of the cleaning port 24 of the cleaning port 26. Since W0 is located above the upper end of the drain port 8a of the drain port section 8, even though the closing member 28 closes the cleaning port 24 of the cleaning port section 26, Even if the water level rises in the drain chamber 18 and reaches the overflow surface W0 and overflows from the cleaning port 24 to the drain port 8 side, the drain water overflowing to the drain port 8 side is discharged from the drain port 8a to the drain trap section. It is possible to drain the water smoothly into 10.

  Further, according to the urinal 1 according to the present embodiment, the drain chamber 18 is formed from the overflow surface W0 defined by the front lower edge 24a of the cleaning port 24 of the cleaning port 26 so as to prevent the inside of the drain chamber 18 from being filled with water. Since the space region R2 is also formed at the upper side, it is possible to suppress the urine stones from adhering to the cleaning port 24 of the cleaning port portion 26 and its vicinity and the obturator 28 as a whole. Therefore, when attaching and detaching the obturator 28 from the cleaning port 26 with the cleaning of the urinal 1, the urine stones adhere to the obturator 28 and the cleaning port 24 of the cleaning port 26. Can be prevented.

Further, according to the urinal 1 according to the present embodiment, the projection surface S2 obtained by projecting the opening cross section S1 of the cleaning port 24 of the cleaning port section 26 toward the connection passage section 20 of the drainage chamber 18 along the central axis A1. Since the urinal 1 is formed on the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18, the urinal 1 can be removed without removing the entire urinal 1 from the drainage pipe 16 outside the urinal 1 when cleaning the urinal 1. By simply removing the obturator 28 from the cleaning port 26 after removing the plate 32, a cleaning tool (not shown) can be inserted into the drain chamber 18 from the drain port 8 side via the cleaning port 24. Accordingly, the vicinity of the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18 formed on the rear side (downstream side) of the drain trap portion 10 can be easily and reliably cleaned.
Therefore, it is possible to prevent urine stones from adhering and accumulating near the bottom surface 20a of the connection passage portion 20 of the drainage chamber 18 on the rear side (downstream side) of the drain trap portion 10, and to clean the bowl surface 4a. It is possible to prevent clogging of the drainage of the connection passage portion 20 discharged from the drainage trap portion 10.

Furthermore, according to the urinal 1 according to the present embodiment, the projection surface S2 which projects the opening cross section S1 of the cleaning port 24 of the cleaning port section 26 toward the connection passage section 20 along the central axis A1 is formed by the projection surface S2 of the drainage chamber 18. By being formed at the rear end (downstream end) 20 b of the connection passage portion 20, it is connected to the inside of the connection passage portion 20 where urine stones are liable to adhere and easily deposit, particularly to the drainage pipe 16 outside the urinal 1. With respect to the rear end (downstream end) 20b of the connection passage portion 20 that is to be removed, the urine stone can be removed from the connection passage portion 20 (particularly, by removing the obturator 28 from the cleaning port 26 after removing the perforated plate 32). Whether it is attached to the downstream end portion 20b) of the connection passage portion 20 can be more reliably confirmed by simple visual inspection.
Further, when cleaning the urinal 1, the obturator 28 is removed from the cleaning port 26 after removing the perforated plate 32 without removing the entire urinal 1 from the drainage pipe 16 outside the urinal 1. Thus, a cleaning tool (not shown) can be inserted into the drain chamber 18 through the cleaning port 24 from the drain port 8 side. This makes it possible to easily and reliably clean the vicinity of the downstream end 20b of the connection passage portion 20 of the drainage chamber 18 to which the drainage pipe 16 outside the urinal 1 is connected. Therefore, it is possible to prevent urine stones from adhering and accumulating near the downstream end portion 20b of the connection passage portion 20 of the drainage chamber 18, wash the bowl surface 4a, and discharge the connection discharged from the drain trap portion 10. Clogging of drainage in the passage section 20 can be prevented.

  In the urinal 1 according to the embodiment of the present invention described above, the embodiment in which the bowl surface 4a is washed using the washing water spouted from the spouting device 6 has been described. The present invention is also applicable to a form of an anhydrous urinal which does not use the washing water W for washing the bowl surface 4a.

DESCRIPTION OF SYMBOLS 1 Urinal 2 Toilet main body 4 Bowl part 4a Bowl surface of bowl part 6 Water discharger 6a Water supply pipe 8 Drainage port 8a Drainage port 10 Drain trap part 12 Descending conduit 14 Ascending conduit 16 Drainage piping (discharge part outside urinal )
16a Front end of drainage pipe (connection part between connection passage and discharge part outside urinal)
16b Inner surface of drainage pipe 16c Upper edge of front end in drainage pipe 18 Drainage chamber (drainage chamber)
20 Drainage room connection passage (Drainage room connection passage)
20a Bottom of connection passage of drainage chamber 20b Rear end of connection passage of drainage chamber (downstream end of connection passage of drainage chamber)
22 Inclined wall (wall that separates drain port and drain chamber)
22a Side surface of drain port of inclined wall 22b Side surface of drain chamber of inclined wall 24 Cleaning port 24a Lower front edge of cleaning port (lower edge of cleaning port)
26 Cleaning Portion 28 Closure Device 30 Seal Member 32 Perforated Plate 34 Peripheral Edge of Perforated Plate 36 Inner Peripheral Edge of Drain Port Portion 38 Connection Port 38a Bottom of Connection Port 38b Upper Edge of Connection Port 40 Base Member of Closure 40a Closure 40b Lower cylindrical portion of the base member of the obturator 40c Skirt portion of the base member of the obturator 40d Upper cylindrical portion of the base member of the obturator 42 Lower engaging member of the obturator 42a Below the obturator Female screw hole 42b of side locking member Projection of lower locking member of closing device 44 Male screw member 44a Male screw of male screw member 44b Head of male screw member 44c Outer peripheral portion of head of male screw member 48 Seal member A1 Cleaning opening Central axis of cross section A2 Central axis of obturator B Step of connecting part between rear end of drain passage and front end of drain pipe C1 Center of opening cross section of cleaning port L1 A virtual line L2 from the opening cross section of the opening to the projection surface projected toward the connection passage along the central axis L2 A virtual line H1 from the opening cross section of the cleaning opening to the projection surface projected toward the connection passage along the central axis The height of the front lower edge of the cleaning opening of the cleaning opening with respect to the bottom of the connection passage of the drainage chamber H2 The height of the front end upper edge of the drainage pipe with the bottom of the connection passage of the drainage chamber H3 The connection of the drainage chamber The height of the upper end of the drain port with respect to the bottom of the passage section P1 The height position of the front lower edge of the cleaning port of the cleaning port with respect to the bottom of the connection passage section of the drain chamber P2 The drainage of the bottom of the connection passage section of the drain chamber The height position of the upper edge of the front end in the pipe P3 The height position of the upper end of the drain port with respect to the bottom of the connection passage part of the drain chamber R1 The area inside the drain port R2 The area inside the drain chamber R3 The projection plane of the cross section of the opening of the cleaning port Area corresponding to S1 Cleaning opening Level corresponding to the height position of the front upper edge portion of the surface S2 projection plane W0 overflow surface W1 wastewater in the pipe

Claims (4)

A urinal that receives and discharges urine,
A bowl portion forming a bowl surface for receiving urination,
A drain port formed at the bottom of the bowl portion and having a drain port formed on the bottom thereof;
A drain trap portion formed below the drain port portion and forming a seal on the downstream side of the drain port of the drain port portion;
A drain chamber formed on the rear side of the drain trap, for washing the bowl surface and discharging the washing water discharged from the drain trap to the discharge part outside the urinal;
By forming a cleaning port so as to penetrate the wall section that partitions the drain port section and the drain chamber section, by inserting a cleaning means from the drain port side into the drain chamber section through the cleaning port, A cleaning port that enables at least the drain chamber and the downstream flow path to be cleaned,
A closure that is detachably attached to the cleaning port and closes the cleaning port;
The drainage chamber portion includes a connection passage portion that partially forms a passage connecting the drainage trap portion and the discharge portion outside the urinal,
The lower edge of the cleaning port of the cleaning port is located above the upper edge of the connection between the connection passage and the discharge section outside the urinal, and the water level in the drain chamber rises. To define the overflow surface when overflowing from the cleaning port to the drain port side ,
The waste water chamber portion, urinal features that you form a space region above the overflow surface lower edge of the cleaning opening defined to prevent the inside is filled with water.   The urinal according to claim 1, wherein an overflow surface defined by a lower edge of the cleaning port is located higher than an upper end of a drain port of the drain port. The drainage chamber portion includes a connection passage portion that partially forms a passage connecting the drainage trap portion and the discharge portion outside the urinal,
The drain trap section includes a descending pipe extending downward from a drain port of the drain port, and an ascending pipe that is folded upward from a lower end of the descending pipe and extends upward. Its upstream end is connected to the rear end of the rising pipe of the drain trap,
The cleaning port, claim 1 or projection plane projected toward the connection passage portion along the opening cross-section in the central axis line is formed on the cleaning opening to be formed on the bottom surface of the connection passage portion The urinal according to 2 . The drainage chamber portion includes a connection passage portion that partially forms a passage connecting the drainage trap portion and the discharge portion outside the urinal, and the cleaning port has an opening cross section along a central axis. The urinal according to any one of claims 1 to 3 , wherein the cleaning port is formed such that a projection surface projected toward the connection passage is formed at a downstream end of the connection passage. .

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