JP6966973B2 - Filter unit for wall-mounted urine - Google Patents

Description

The present invention relates to a filter unit provided at a drain port of a wall-mounted urinal.

Hair, dust, etc. that flow into the drain of a wall-mounted urinal can be a factor that clogs the drain. Here, the clogging of the exhaust pipe can be removed by cleaning the exhaust pipe with strong chemicals, high-pressure washing, a torah, or the like. However, this method can adversely affect the urinal or equipment located downstream of the urinal.

Therefore, in order to prevent clogging of the drainage pipe, a method of attaching a filter for catching hair, dust, etc. flowing into the drainage port to the drainage port of the urinal is widely used.
In Patent Document 1, the annular sheet plate and the tubular net body are integrally formed by thermally adhering the opening end edge of the tubular net body to the annular sheet plate made of a synthetic resin having heat adhesiveness. The joined drain filter is disclosed. Hair, dust, etc. flowing into the drainage port are captured by this tubular net body.

Japanese Patent No. 5250447

However, the tubular net body described in Patent Document 1 does not have a sufficient filtering effect for capturing hair, dust, and the like. Therefore, there is a possibility that hair, dust, etc. may slip through the tubular net body and flow into the exhaust pipe.

Therefore, an object of the present invention is to provide a filter unit for a wall-mounted urine that can further suppress the inflow of hair, dust, etc. into the exhaust pipe.

In order to solve the above problems, the filter unit according to the present invention includes (1) a case body for accommodating a solid drug and a case in which a plurality of discharge openings for passing drainage of a wall-mounted urinal are formed on the peripheral wall. A filter unit for a wall-mounted urinal having a lid and a bag-shaped filter net having no open end. The filter net contains the case body and is of the filter net. The filter net is such that the first net portion located on the outside of the case body and the second net portion of the filter net excluding the first net portion face each other with the discharge opening interposed therebetween. Is characterized by being bent.

(2) The second net portion includes a sealing portion with an open end sealed, and the sealing portion is housed inside the case body and protrudes toward the bottom surface of the case body. The filter unit according to (1), which is a feature.

(3) The filter net according to (1) or (2), wherein the filter net is sandwiched between the case body and the case lid detachably attached to the case body. Filter unit.

According to the present invention, the drainage of the wall-mounted urinal that passes through the plurality of discharge openings passes through the first net portion and the second net portion. Therefore, hair, dust, etc. contained in the wastewater are doubly captured by the filter net. As a result, it becomes possible to further suppress the flow of hair, dust, etc. into the exhaust pipe.

It is a schematic perspective view of the wall-mounted urinal in the state where the filter unit in this embodiment is installed in the drainage port. It is a schematic side view of the filter unit in this embodiment. It is a schematic perspective view of the case body and the filter net in this embodiment. FIG. 3 is a cross-sectional view taken along the line AA of the filter net and the case body shown in FIG.

(First Embodiment)
Hereinafter, the configuration of the filter unit in the present embodiment will be described with reference to the drawings. FIG. 1 is a schematic perspective view of a wall-mounted urinal in a state where the filter unit in the present embodiment is installed at the drain port. FIG. 2 is a schematic side view of the filter unit in the present embodiment. FIG. 3 is a schematic perspective view of the case body and the filter net in the present embodiment. The X-axis, Y-axis, and Z-axis are three axes orthogonal to each other. The X-axis indicates the depth direction of the wall-mounted urinal. The Y-axis indicates the width direction of the wall-mounted urinal. The Z axis indicates the height direction of the filter unit. The dot portion shown in FIG. 2 indicates a second sealing portion 32, which will be described later, and the same applies to FIG. The grid portion shown in FIGS. 2 and 3 indicates the filter net 3.
With reference to FIGS. 1 to 3, the filter unit 1 in the present embodiment is mounted on a drain port (not shown) provided in the wall-mounted urinal 10. The filter unit 1 includes a urinary stone adhesion inhibitor 2 and a filter net 3. The urinary stone adhesion inhibitor 2 includes a case lid 21, a case body 22, and a solid agent 23. The filter net 3 is a bag-shaped net body having no open end, and the case main body 22 is housed in the filter net 3. A cylindrical solid drug 23 is housed inside the case body 22. The solid drug 23 is used to prevent the adhesion of urinary stones, and is placed on a portion of the filter net 3 located inside the case body 22. The case lid 21 is detachably attached to the case body 22. The method of attaching the case lid 21 and the case body 22 will be described later.

The case lid 21 includes a case lid top surface 211, a case lid bottom surface 212, and a plurality of first connection portions 213, which are integrally configured. The case lid top surface 211 is formed in a disk shape in the Z-axis direction, and has a curved surface whose diameter increases toward the lower side in the Z-axis direction. A plurality of inflow openings 211a penetrating in the thickness direction are formed on the top surface 211 of the case lid. The plurality of inflow openings 211a are formed at equal intervals in the circumferential direction.
The case lid bottom surface 212 is formed in an annular shape in the XY plane. The inner diameter of the case lid bottom surface 212 is larger than the outer diameter of the case lid top surface 211. The side surface of the case lid top surface 211 and at least the upper surface of the case lid bottom surface 212 are connected by a plurality of first connecting portions 213 having an arch shape curved outward.
The plurality of first connecting portions 213 are provided at equal intervals in the circumferential direction, and an inflow opening 213a is formed between the two adjacent first connecting portions 213, respectively. On the radial inner surface of each first connecting portion 213, a first flat surface 213b extending flatly in the Z-axis direction from the lower end portion of the first connecting portion 213 is formed. Urine, washing water flowing from the wall-mounted urinal 10 (hereinafter referred to as “drainage”) and the like flow into the filter unit 1 from the inflow openings 211a and 213a.

The case body 22 includes a case body first top surface 221 and a case body second top surface 222, a plurality of second connection portions 223, a plurality of third connection portions 224, a case body bottom surface 225, and a case body side surface. 226 and these are integrally configured as a peripheral wall of the case body 22.
The case body first top surface 221 and the case body second top surface 222 are formed in an annular shape on the same XY plane, and the case body second top surface 222 is provided inside the case body first top surface 221. There is. The outer edge of the case body first top surface 221 is formed along the inner edge of the case lid bottom surface 212, and there is a minute clearance between the outer edge of the case body first top surface 221 and the inner edge of the case lid bottom surface 212. It is formed. This minute clearance is substantially the same as the thickness of the filter net 3.

The case body first top surface 221 and the case body second top surface 222 are connected by a plurality of second connecting portions 223 extending in the radial direction and a plurality of third connecting portions 224. Four of the plurality of second connecting portions 223 are provided at equal intervals in the circumferential direction. The third connecting portion 224 is provided at an intermediate position in the circumferential direction of the two adjacent second connecting portions 223, respectively.

At the radially outer end of each second connection portion 223, a claw portion 223a formed so as to project radially outward from the first top surface 221 of the case body is provided. Each of the claw portions 223a is provided at a position corresponding to any of the inflow openings 213a, engages with the case lid bottom surface 212, and is in contact with the case lid bottom surface 212 from above. That is, the case lid 21 is attached to the case body 22 by locking the claw portion 223a of the case body 22 to the case lid 21.
According to this mounting method, the case body 22 is prevented from being separated from the case lid 21 and moving downward in the Z-axis direction. Therefore, even when the flow rate of the drainage flowing into the filter unit 1 is large or the momentum of the flowing drainage is strong, the claw portion 223a abuts on the bottom surface 212 of the case lid from above, so that the case body 22 becomes the case lid. It is suppressed that it separates from 21 and flows into the drainage pipe.

By mounting the case lid 21 on the case body 22 by the mounting method described above, the filter net 3 is placed between the case lid 21 (case lid bottom surface 212) and the case body 22 (case body first top surface 221). It is sandwiched and fixed. The mounting method for mounting the case lid 21 on the case body 22 is not limited to the mounting method described above. The case lid 21 may be detachably attached to the case body 22 so that the filter net 3 is sandwiched and fixed between the case lid 21 and the case body 22. Therefore, for example, the claw portion may be provided on the case lid 21 and the claw portion may be engaged with the case main body 22.
According to the configuration in which the filter net 3 is sandwiched and fixed between the case lid 21 and the case body 22, it is not necessary to fix the filter net 3 to the urinary stone adhesion preventive agent 2 by an adhesive method such as thermal adhesion. Become. As a result, the work of fixing the filter net 3 to the urinary stone adhesion inhibitor 2 becomes easier. Further, the urinary stone adhesion preventive agent 2 is formed and the filter net 3 is fixed to the urinary stone adhesion preventive agent 2 only by attaching the case lid 21 to the case main body 22. Therefore, the labor of manufacturing the filter unit is simplified.

A pair of protrusions 224a extending in the Z-axis direction are provided at the radially outer ends of each third connection portion 224. The phase of each of the pair of protrusions 224a is the same as the phase of the first connection portion 213. A second flat surface 224b extending flatly in the Z-axis direction is formed on the radial outer surface of the protrusion 224a. At least one of each second flat surface 224b is in contact with the first flat surface 213a.
By setting the protrusion 224a in the same phase as the first connection portion 213, when the case lid 21 is attached to the case body 22, the case lid 21 is extended in the direction in which the first flat surface 213 and the second flat surface 224b extend (this). In the embodiment, it can be easily pushed in the Z-axis direction). Therefore, the work of attaching the case lid 21 to the case main body 22 becomes easier.

The bottom surface 225 of the case body is formed in an annular shape on the XY plane. The outer diameter of the bottom surface 225 of the case body is smaller than the inner diameter of the second top surface 222 of the case body. The case main body side surface 226 connects the inner edge portion of the case main body second top surface 222 and the outer edge portion of the case main body bottom surface 225, and has a shape that decreases in diameter toward the lower side in the Z-axis direction.

A discharge opening 22a is provided at a position sandwiched between the inner edge of the first top surface 221 of the case body and the outer edge of the second top surface 222 of the case body. The discharge opening 22a is separated by a plurality of second connection portions 223 and a plurality of third connection portions 224.
A discharge opening 225a is provided inside the bottom surface 225 of the case body. The discharge opening 225a is divided into four equal parts by a substantially cross-shaped partition plate 225b formed on the inner peripheral surface of the bottom surface 225 of the case body. A discharge opening 226a penetrating in the thickness direction is provided on the side surface 226 of the case body. The discharge openings 226a are provided at equal intervals in the circumferential direction. The drainage that has flowed into the filter unit 1 is discharged to the outside of the filter unit 1 through the discharge openings 22a, 225a and 226a.

The filter net 3 will be described with reference to FIGS. 1 to 4. FIG. 4 is a cross-sectional view taken along the line AA of the filter net and the case body shown in FIG. The hatch shown in FIG. 4 shows the first sealing portion 31. The filter net 3 has a first sealing portion 31 (corresponding to the “sealing portion” in claim 2) in which one end of the tubular net is sealed, and a second portion in which the other end is sealed. 2 The sealing portion 32 and the like are provided.
The case body 22 is housed in the filter net 3. The first sealing portion 31 is housed inside the case body 22, and the second sealing portion 32 is arranged outside the case body 22. Therefore, the filter net 3 is composed of a first net portion 33 of the filter net 3 located outside the case body 22, and a second net portion 34 of the filter net 3 excluding the first net portion 33. NS. The filter net 3 is bent so that the first net portion 33 and the second net portion 34 face each other with the drainage openings 22a, 225a and 226a interposed therebetween. The method of forming the filter net 3 will be described later.

The wastewater flowing into the filter unit 1 from the inflow openings 211a and 213a passes through the discharge openings 22a, 225a and 226a after dissolving the solid drug 23, and is discharged from the filter unit 1. At that time, the drainage passes through the second net portion 34 and the first net portion 33 in this order (passes through the net twice). Therefore, it is possible to further suppress the flow of hair, dust, etc. flowing into the filter unit 1 into the exhaust pipe.

The second net portion 34 is preferably provided at a position that covers the case main body 22 when the case main body 22 is viewed in the Z-axis direction. According to this configuration, the first net portion 33 and the second net portion 34 face each other with the drainage openings 22a, 225a and 226a interposed therebetween, and the hair, dust and the like flowing into the filter unit 1 are captured in a wider range. Can be done. Therefore, it is possible to further suppress the flow of hair, dust, and the like into the exhaust pipe.

The filter net 3 is preferably formed as follows. That is, by sealing one end of the tubular net and inverting the front and back of the tubular net, a tubular net in which the first sealing portion 31 projects toward the end of the open end is formed. The case body 22 is arranged in the tubular net so that the end of the opening is located below the case body 22 in the Z-axis direction and the first sealing portion 31 is located above the case body 22 in the Z-axis direction. .. As a result, the tubular net is divided at a position corresponding to the outer edge of the first top surface 221 of the case body, and the area is divided into two net portions. Of these two net portions, the net portion including the first sealing portion 31 (corresponding to the second net portion 34 in the filter net 3) is radially inside at a position corresponding to the outer edge of the first top surface 221 of the case body. Bend to.
Of the net portions bent inward in the radial direction, the net portion located radially inward from the position corresponding to the inner edge of the second top surface 222 of the case body is Z at the position corresponding to the inner edge of the second top surface 222 of the case body. Bend downward in the axial direction. As a result, the first sealing portion 31 is configured to protrude toward the bottom surface 225 of the case body.
Of the above two net portions, the net portion including the open end end of the tubular net (corresponding to the first net portion 33 in the filter net 3) is second-sealed by sealing the open end end. The landing portion 32 is formed. As a result, the filter net 3 in which the case body 22 is housed is formed.

According to the above configuration, since the first sealing portion 31 protrudes toward the bottom surface 225 of the case body, when the solid drug 23 is housed in the case body 22, the solid drug 23 and the first sealing portion 31 Interference is avoided. Therefore, it becomes easier to store the solid drug 23 in an appropriate storage position as compared with the configuration in which the first sealing portion 31 projects upward in the Z-axis direction.

(Modification 1)
In the present embodiment, the filter net 3 is configured to include the first sealing portion 31 and the second sealing portion 32, but the present invention is not limited to this, and the filter net 3 is a bag-shaped net body having no open end. All you need is. Therefore, for example, the filter net 3 may be configured to include only one of the first sealing portion 31 and the second sealing portion 32, and the first sealing portion 31 and the second sealing portion 32 may be provided. It may be a configuration that does not have any of the above.

(Modification 2)
In the present embodiment, four of the plurality of second connecting portions 223 are provided at equal intervals in the circumferential direction, but the present invention is not limited to this, and the number of second connecting portions 223 is three or less at equal intervals in the circumferential direction. Five or more may be provided, or one or more may be provided non-uniformly in the circumferential direction.

(Modification 3)
In the present embodiment, the plurality of third connecting portions 224 are provided at intermediate positions in the circumferential direction of the two adjacent second connecting portions 223, but the present invention is not limited to this. The third connecting portion 224 may be provided at a position avoiding an intermediate position in the circumferential direction of two adjacent second connecting portions 223, respectively. Further, the number of the third connecting portions 224 may be different from the number of the second connecting portions 223.

(Modification example 4)
In the present embodiment, the discharge opening 225a is divided into four equal parts by a substantially cross-shaped partition plate 225b formed on the inner peripheral surface of the bottom surface 225 of the case body, but the drainage opening 225a is not limited to this and flows into the filter unit 1. Any structure may be used as long as it can discharge wastewater. For example, the partition plate 225b may be a partition plate having a shape (excluding a substantially cross shape) that evenly divides the inner peripheral surface of the bottom surface 225 of the case body. Further, the discharge opening 225a may be formed, for example, by penetrating the disk-shaped bottom surface 225 of the case body in the thickness direction thereof.

(Modification 5)
In the present embodiment, the claw portion 223a is formed in the plurality of second connecting portions 223, but is not limited to this, and may be provided at a position corresponding to any of the inflow openings 213a. For example, at least one of the claw portions 223a may be provided at a position on the upper surface of the first top surface 221 of the case body so as to avoid the second connecting portion 223.

(Modification 6)
In the present embodiment, the protrusion 224a is formed on a plurality of third connection portions 224, but is not limited to this, and may be provided at a position corresponding to any of the first connection portions 213. For example, at least one of the protrusions 224a may be provided at a position on the upper surface of the first top surface 221 of the case body so as to avoid the third connection portion 224.

(Modification 7)
In the present embodiment, a plurality of inflow openings 211a are formed at equal intervals in the circumferential direction on the case lid top surface 211, but the flow is not limited to this and flows into the central portion of the case lid top surface 211. It may have a structure in which one opening is formed.

1: Filter unit 2: Urine stone adhesion inhibitor 3: Filter net 10: Wall-mounted urinal 21: Case lid 22: Case body 23: Solid drug 31: First sealing part 32: Second sealing part 33: No. 1 net part 34: 2nd net part 22a, 225a, 226a: discharge opening

Claims (3)

A filter unit for a wall-mounted urinal, which is provided with a case body for accommodating a solid drug and a case lid, in which a plurality of discharge openings for passing the drainage of the wall-mounted urinal are formed on the peripheral wall.
Equipped with a bag-shaped filter net that does not have an open end,
The case body is housed in the filter net.
The first net portion of the filter net located outside the case body and the second net portion of the filter net excluding the first net portion face each other with the discharge opening interposed therebetween. , A filter unit characterized in that the filter net is bent. The second net portion includes a sealing portion that seals the opening end.
The filter unit according to claim 1, wherein the sealing portion is housed inside the case body and protrudes toward the bottom surface of the case body. The filter unit according to claim 1 or 2, wherein the filter net is sandwiched and fixed between the case body and the case lid detachably attached to the case body.

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