Bathroom drain unit

Abstract

This provides a bathroom drainage unit that allows for easy attachment of a hair catcher to a water seal cylinder. [Solution] A bathroom drainage unit comprising a water seal cylinder and a hair catcher placed on the water seal cylinder, wherein the hair catcher has a contact portion that contacts the water seal cylinder in a planar or linear manner and a restricting portion that contacts the water seal cylinder when the hair catcher is displaced to restrict the movement of the hair catcher.

Description

Technical Field

[0001] Aspects of the present invention generally relate to a drainage unit for a bathroom.

Background Art

[0002] A drainage unit for a bathroom having a water seal cylinder for a drain outlet and a hair catcher attached to the water seal cylinder is known. The hair catcher is attached to the water seal cylinder by fitting it onto a projection provided on the water seal cylinder (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] < . Such a hair catcher may be troublesome to fit onto the projection of the water seal cylinder.

[0005] [[ID=3 . 000028> The present invention has been made based on the recognition of such problems, and an object thereof is to provide a drainage unit for a bathroom that can easily attach a hair catcher to a water seal cylinder.

Means for Solving the Problems

[0006] A first invention is a drainage unit for a bathroom including a water seal cylinder and a hair catcher placed on the water seal cylinder, wherein the hair catcher has a contact portion that contacts the water seal cylinder in a planar or linear manner, and a restricting portion that contacts the water seal cylinder when the hair catcher is displaced to restrict the movement of the hair catcher.

[0007] This bathroom drain unit allows for easy attachment of the hair catcher to the water seal cylinder. Furthermore, since the contact portion of the hair catcher makes contact with the water seal cylinder in a planar or linear manner, displacement can be suppressed. In this case, the regulating portion does not contact the water seal cylinder when the hair catcher is not displaced, so under normal conditions when no displacement occurs, the contact area between the water seal cylinder and the hair catcher does not become unnecessarily large, thereby reducing the possibility of excessive dirt accumulation.

[0008] The second invention is a bathroom drainage unit in which, in the first invention, the restricting portion has a plurality of vertical plate portions extending downward from the contact portion and a horizontal plate portion located below the contact portion and connecting the plurality of vertical plate portions.

[0009] This bathroom drain unit allows drainage from the hair catcher to be discharged through an opening between the vertical and horizontal plates, thereby improving drainage performance. Furthermore, this drain unit allows drainage to flow along the inner surface of the water seal cylinder, which helps to prevent dirt from accumulating on the water seal cylinder.

[0010] The third invention is a bathroom drainage unit in which, in the first invention, the inner surface of the water seal cylinder has a first inclined portion that the contact portion of the hair catcher contacts, and a second inclined portion connected to the upper end of the first inclined portion and having a smaller angle of inclination with respect to the horizontal than the first inclined portion, and the upper end of the hair catcher is located below a virtual line extending from the upper end of the first inclined portion at the same angle of inclination as the second inclined portion.

[0011] This bathroom drainage unit allows the drainage flowing through the second inclined section to be efficiently directed into the hair catcher, thereby improving drainage performance.

[0012] The fourth invention is a bathroom drainage unit in which, in the third invention, the inner surface of the contact portion has an inclination angle with respect to the horizontal direction that is greater than or equal to the inclination angle of the second inclined portion of the water seal cylinder.

[0013] This bathroom drainage unit can improve drainage performance by facilitating smoother drainage.

[0014] The fifth invention is a bathroom drainage unit in which, in the first invention, the hair catcher has a weight that is heavier below the central part in the vertical direction than the weight that is heavier above the central part.

[0015] This bathroom drainage unit helps prevent the hair catcher from becoming misaligned.

[0016] The sixth invention is a bathroom drainage unit in which, in the first invention, the inner surface of the water seal cylinder has a first inclined portion that the contact portion of the hair catcher contacts, and a second inclined portion connected to the upper end of the first inclined portion, and the first inclined portion and the second inclined portion are flat surfaces in the circumferential direction.

[0017] This bathroom drain unit helps prevent dirt from accumulating on the inner surface of the water seal. Furthermore, it makes it easier to wipe and clean the inner surface of the water seal, thus improving the overall cleanability of the water seal. [Effects of the Invention]

[0018] According to an aspect of the present invention, the objective is to provide a bathroom drainage unit in which a hair catcher can be easily attached to a water seal cylinder. We can provide this. [Brief explanation of the drawing]

[0019] [Figure 1] This is a perspective view showing a bathroom equipped with a drainage unit according to the embodiment. [Figure 2] This is a perspective view of the drain in the washing area floor, seen from a diagonal angle above. [Figure 3] This is an exploded perspective view showing the hair catcher removed from the water seal cylinder. [Figure 4]It is a cross-sectional view of the water seal cylinder and the hair catcher as seen from the direction of arrow A-A in FIG. 2. [Figure 5] It is a cross-sectional view showing the case where the hair catcher in FIG. 4 is displaced. [Figure 6] It is a cross-sectional view showing an enlarged view of the contact portion of the hair catcher and the first inclined portion and the second inclined portion of the water seal cylinder. [Figure 7] It is a cross-sectional view explaining the relationship between the virtual line extending from the second inclined portion and the upper end of the contact portion of the hair catcher. [Figure 8] It is a front view showing the hair catcher alone. [Figure 9] It is a perspective view showing the water seal cylinder alone. [Figure 10] It is a cross-sectional view similar to FIG. 6 showing the hair catcher according to the modified example.

Mode for Carrying Out the Invention

[0020] Hereinafter, embodiments will be described with reference to the drawings. In each drawing, the same components are denoted by the same reference numerals, and detailed descriptions thereof are omitted as appropriate. FIG. 1 is a perspective view showing a bathroom equipped with a drainage unit for a bathroom according to an embodiment. As shown in FIG. 1, the bathroom 1 includes a washbasin floor 10, a bathtub 90, and wall panels 96a to 96f.

[0021] In the space beside the bathtub 90, the washbasin floor 10 is installed. The surface 10a of the washbasin floor 10 has waterproofness that does not allow water to leak to the outside of the bathroom. In the present specification, when referring to "water", it includes not only cold water but also heated hot water. Also, in the present specification, "upstream side" and "downstream side" are based on the direction of drainage flow.

[0022] A drain pipe 92 is provided on the underside (downward side) of the washing area floor 10 for draining water from both the washing area floor 10 and the bathtub 90. In the washing area floor 10, for example, near the boundary with the bathtub 90, a drain opening 10h is formed for draining water from the washing area floor 10 into the drain pipe 92. The drain opening 10h is covered by a lid (not shown). The drain opening 10h is recessed downwards and is connected to the drain pipe 92 via a drain unit 20, which will be described later. A drain opening (not shown) provided at the bottom of the bathtub 90 is also connected to the drain pipe 92 via the drain unit 20.

[0023] A bath apron 94 is provided at the boundary between the bathtub 90 and the washing area floor 10, covering the side of the bathtub 90 that faces the washing area floor 10. Note that depending on the structure of the bathtub 90, a bath apron 94 may not be necessary.

[0024] As shown by the dashed line in Figure 1, wall panels 96a to 96c are installed on the rim of the bathtub 90. Additionally, wall panels 96d to 96f are installed on the periphery of the washing area floor 10. A door is attached to wall panel 96f via a door mounting frame (not shown).

[0025] Next, the bathroom drainage unit 20 will be explained with reference to Figures 2 to 8. Figure 2 is a perspective view of the drain in the washing area floor, seen from diagonally above. Figure 3 is an exploded perspective view showing the hair catcher removed from the water seal cylinder. Figure 4 is a cross-sectional view of the water seal cylinder and hair catcher as seen from the direction indicated by arrow AA in Figure 2. Figure 5 is a cross-sectional view showing the case where the hair catcher in Figure 4 is displaced. Figure 6 is an enlarged cross-sectional view showing the contact portion of the hair catcher and the first and second inclined portions of the water seal cylinder. Figure 7 is a cross-sectional view illustrating the relationship between a virtual line extending from the second inclined section and the upper end of the contact portion of the hair catcher. Figure 8 is a front view showing the hair catcher as a standalone unit. Figure 9 is a perspective view showing the water seal cylinder on its own.

[0026] The bathroom drain unit 20 (hereinafter referred to as the drain unit 20) is the part that connects the washing area floor 10 to the drain pipe 92 and the bathtub 90 to the drain pipe 92. That is, water from the washing area floor 10 flows through the drain outlet 10h inside the drain unit 20 and is guided to the drain pipe 92. Similarly, water from the bathtub 90 flows through the drain outlet 90a inside the drain unit 20 and is guided to the drain pipe 92. The drain unit 20 also stores a water seal inside to prevent odors and pests from entering the washing area floor 10 and the bathtub 90 from the drain pipe 92. The drain unit 20 is equipped with a water seal cylinder 31 and a hair catcher 40.

[0027] The water seal cylinder 31 extends downward from the drain 10h of the washing area floor 10. The inside of the water seal cylinder 31 is a drain hole 32 through which the wastewater flowing from the drain 10h of the washing area floor 10 flows. The water seal cylinder 31 prevents odors, pests, etc. from entering the washing area floor 10 from the drain pipe 92 by storing water in the drain hole 32. The water seal cylinder 31 has a trumpet shape with a flared upper end.

[0028] The drain hole 32 is connected to the drain outlet 10h on its upstream side in the direction of drainage, and to a flow channel (not shown) on its downstream side. This flow channel is located on the underside of the washing area floor 10 and guides the drainage from the washing area floor 10 and the drainage from the bathtub 90 to the drain pipe 92. The water seal cylinder 31 can be removed from the drain outlet 10h, for example, by pulling it upwards.

[0029] As shown in Figure 9, the inner surface 33 of the water seal cylinder 31 has a first inclined portion 33a and a second inclined portion 33b connected to the upper end 33a1 of the first inclined portion 33a. As shown in Figures 4 and 6, the contact portion 44 of the hair catcher 40, which will be described later, is in contact with the first inclined portion 33a. In Figure 4, the hair catcher 40 is not displaced from the water seal cylinder 31. At this time, the upper part 40b of the hair catcher 40 is almost horizontal.

[0030] The second inclined portion 33b extends diagonally upward from the upper end 33a1 of the first inclined portion 33a toward the radially outward direction of the water seal cylinder 31. The second inclined portion 33b extends in a straight line from the upper end 33a1 of the first inclined portion 33a toward the upper end 31a of the water seal cylinder 31. In other words, the second inclined portion 33b is tapered from the upper end 31a of the water seal cylinder 31 toward the upper end 33a1 of the first inclined portion 33a. The second inclined portion 33b may also extend in a straight line toward below the upper end 31a of the water seal cylinder 31.

[0031] As shown in Figure 9, the first inclined portion 33a and the second inclined portion 33b of the water seal cylinder 31 are flat surfaces in the circumferential direction. That is, the first inclined portion 33a and the second inclined portion 33b are not provided with protrusions or indentations for fitting the hair catcher 40 described later. As a result, dirt from drainage is less likely to adhere to the first inclined portion 33a and the second inclined portion 33b. In addition, because the first inclined portion 33a and the second inclined portion 33b of the water seal cylinder 31 do not have protrusions or indentations, dirt can be easily wiped off, making it easier to clean the inner surface 33.

[0032] As shown in Figure 6, the upper end 33a1 of the first inclined portion 33a is the boundary point with the second inclined portion 33b. In other words, the upper end 33a1 of the first inclined portion 33a is an inflection point where the inclination angles α of the first inclined portion 33a and β of the second inclined portion 33b change with respect to the horizontal direction.

[0033] The inclination angle β of the second inclined portion 33b with respect to the horizontal is smaller than the inclination angle α of the first inclined portion 33a with respect to the horizontal (β < α). The inclination angle α is the angle between the first inclined portion 33a and the horizontal direction. The inclination angle β is the angle between the first inclined portion 33b and the horizontal direction.

[0034] Next, I will explain the hair catcher 40.

[0035] The hair catcher 40 is placed on the water seal cylinder 31. In this case, the hair catcher 40 is supported without being fixed to the water seal cylinder 31. That is, the mounting position of the hair catcher 40 relative to the water seal cylinder 31 is flexible. This allows the hair catcher 40 to be easily installed simply by placing it on the water seal cylinder 31. Furthermore, the hair catcher 40 can be easily removed from the water seal cylinder 31 by lifting it upwards.

[0036] The hair catcher 40 is dish-shaped to match the shape of the drain hole 32 of the water seal cylinder 31. The hair catcher 40 has a lower part 40a with a bottom 41 and an upper part 40b located above the lower part 40a. As shown in Figures 4 and 8, the boundary XX between the lower part 40a and the upper part 40b is the center of the vertical height H of the hair catcher 40. The hair catcher 40 has a bottom 41 and a side part 43 extending upward from the bottom 41. The side part 43 extends from the upper end 40c of the hair catcher 40 so as to decrease in diameter towards the bottom 41.

[0037] The bottom portion 41 has multiple through holes 41a that penetrate vertically. The wastewater W that reaches the bottom portion 41 flows out through the through holes 41a towards the drain holes 32 of the water seal cylinder 31. In addition, the bottom portion 41 is designed to collect foreign matter such as hair.

[0038] The side portion 43 has a contact portion 44 that contacts the water seal cylinder 31 in a planar or linear manner, and a restricting portion 46 that contacts the water seal cylinder 31 when the hair catcher 40 is displaced, thereby restricting the movement of the hair catcher 40. The contact portion 44 and the restricting portion 46 are located on the upper part 40b of the hair catcher 40.

[0039] The contact portion 44 is located on the upper end 40c side of the hair catcher 40. The contact portion 44 is an annular plate body corresponding to the inner diameter of the first inclined portion 33a of the water seal cylinder 31. The outer surface 44a of the contact portion 44 extends along the first inclined portion 33a of the water seal cylinder 31. That is, the contact portion 44 is in surface contact with the first inclined portion 33a in the circumferential direction with a predetermined height dimension. The hair catcher 40 is prevented from shifting position by the frictional force between the contact portion 44 and the first inclined portion 33a of the water seal cylinder 31. As a result, the hair catcher 40 can be stably attached to the water seal cylinder 31.

[0040] As shown in Figure 7, the upper end 40c of the hair catcher 40 is located below the imaginary line YY extending from the upper end 33a1 of the first inclined section 33a, at the same inclination angle β as the second inclined section 33b of the water seal cylinder 31. This allows the drainage W flowing through the second inclined section 33b, as well as hair and other debris contained in the drainage W, to be efficiently guided into the hair catcher 40.

[0041] Furthermore, as shown in Figure 6, the inner surface 44b of the contact portion 44 has an inclination angle γ with respect to the horizontal direction that is greater than or equal to the inclination angle β of the second inclined portion 33b of the water seal cylinder 31 (γ≧β). In other words, the inner surface 44b of the contact portion 44 is more vertically raised than the second inclined portion 33b. This allows the drainage W flowing through the second inclined portion 33b, as well as hair and other debris contained in the drainage W, to be guided into the hair catcher 40 more efficiently.

[0042] The restricting portion 46 is located below the contact portion 44. The restricting portion 46 contacts the water seal cylinder 31 when the hair catcher 40 is displaced, thereby restricting the movement of the hair catcher 40. As shown in Figures 4 and 6, the restricting portion 46 extends along the inner surface 33 of the water seal cylinder 31. The restricting portion 46 is as close as possible to the inner surface 33 of the water seal cylinder 31 when the hair catcher 40 is attached to the water seal cylinder 31. That is, the hair catcher 40 has a contact portion 44 and a restricting portion 46 that conform to the shape of the inner surface 33 of the water seal cylinder 31. The side portion 43 extends radially inward from the lower end of the restricting portion 46 toward the bottom portion 41.

[0043] As shown in Figure 5, if the hair catcher 40 is tilted, for example in the direction of the arrow, the restricting portion 46 will come into contact with the inner surface 33 of the water seal cylinder 31. In this example, the lower end of the restricting portion 46 is in contact with the inner surface 33 of the water seal cylinder 31. This prevents the hair catcher 40 from moving (slipping) any further. The hair catcher 40 can be corrected if it slips, for example, when the drainage water W presses against it.

[0044] The regulating section 46 has a plurality of vertical plate sections 46a extending downward from the contact section 44, and a horizontal plate section 46b located below the contact section 44 and connecting the plurality of vertical plate sections. If the hair catcher 40 is displaced, the vertical plate section 46a or the horizontal plate section 46b will come into contact with the inner surface 33 of the water seal cylinder 31. In this example, at the connection portion between the vertical plate section 46a and the horizontal plate section 46b, the outer surface of the vertical plate section 46a and the outer surface of the horizontal plate section 46b are on the same plane.

[0045] The restricting section 46 has a plurality of openings 46c between the vertical plate section 46a and the horizontal plate section 46b. That is, the restricting section 46 is formed in a grid pattern by the vertical plate section 46a and the horizontal plate section 46b. The drainage W is discharged from inside the hair catcher 40 through the openings 46c and through holes 41a to the drainage hole 32 of the water seal cylinder 31.

[0046] As shown in Figure 4, the restricting portion 46 of the hair catcher 40 extends vertically along the inner surface 33 of the water seal cylinder 31. As a result, the drainage W flows from the opening 46c along the inner surface 33 of the water seal cylinder 31. In this case, at the connection point between the vertical plate portion 46a and the horizontal plate portion 46b, the outer surface of the vertical plate portion 46a and the outer surface of the horizontal plate portion 46b are on the same plane.

[0047] As a result, the hair catcher 40 can smoothly direct the drainage W from top to bottom. In addition, the drainage unit 20 can flush away dirt adhering to the inner surface 33 of the water seal cylinder 31 along with the drainage W. Therefore, the drainage unit 20 can improve the hygiene of the water seal cylinder 31.

[0048] The hair catcher 40 has a weight distribution at the lower part 40a that is heavier than the weight at the upper part 40b that is heavier than the weight at the central part (XX in Figure 8). As a result, the hair catcher 40 is stably attached to the water seal cylinder 31, so that it does not shift even when the drainage W flows.

[0049] Figure 10 is a cross-sectional view similar to Figure 6, showing a modified hair catcher. In the embodiments described above, the connection portion between the vertical plate portion 46a and the horizontal plate portion 46b was explained using the example where the outer surface of the vertical plate portion 46a and the outer surface of the horizontal plate portion 46b are on the same plane. However, the embodiments of the present invention are not limited to this, and for example, as shown in the modified example in Figure 10, the restricting portion 51 of the hair catcher 50 may have the outer surface of the horizontal plate portion 53 protruding radially outward more than the outer surface of the vertical plate portion 55. In such a case, when the hair catcher 50 is displaced, the horizontal plate portion 53 contacts the inner surface 33 of the water seal cylinder 31 to suppress the displacement. The restricting portion of the hair catcher may also have the outer surface of the horizontal plate portion recessed radially inward more than the outer surface of the vertical plate portion.

[0050] The embodiment may include the following configurations. (Composition 1) A water seal cylinder, A hair catcher placed on the aforementioned water seal cylinder, A bathroom drainage unit having, The aforementioned hair catcher is A contact portion that contacts the water seal cylinder in a planar or linear manner, A restricting part that contacts the water seal cylinder when the hair catcher is displaced and restricts the movement of the hair catcher, A bathroom drainage unit that has [this feature]. (Configuration 2) The aforementioned regulatory body, Multiple vertical plate portions extending downward from the contact portion, A horizontal plate portion located below the aforementioned contact portion and connecting the plurality of vertical plate portions, A bathroom drainage unit as described in configuration 1, having the following features. (Composition 3) The inner surface of the water seal cylinder is The first inclined portion that the contact portion of the hair catcher contacts, A second inclined portion is connected to the upper end of the first inclined portion and has a smaller angle of inclination with respect to the horizontal than the first inclined portion, It has, The bathroom drain unit according to configuration 1 or 2, wherein the upper end of the hair catcher is located below a virtual line extending from the upper end of the first inclined portion at the same inclination angle as the second inclined portion. (Composition 4) The bathroom drain unit according to configuration 3, wherein the inner surface of the contact portion has an inclination angle with respect to the horizontal direction that is greater than or equal to the inclination angle of the second inclined portion of the water seal cylinder. (Composition 5) The drainage unit for a bathroom according to any one of configurations 1 to 4, wherein the weight of the hair catcher is greater at the bottom than at the center than at the top. (Composition 6) The inner surface of the water seal cylinder has a first inclined portion that the contact portion of the hair catcher contacts, and a second inclined portion connected to the upper end of the first inclined portion, and the first inclined portion and the second inclined portion are flat surfaces in the circumferential direction, as described in any one of configurations 1 to 5.

[0051] Embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. Modifications made by those skilled in the art to the above-described embodiments are also included within the scope of the present invention, as long as they retain the features of the present invention. For example, the shape, dimensions, materials, and arrangement of each element of a bathroom drainage unit are not limited to those exemplified and can be modified as appropriate. Furthermore, the elements of each of the above-described embodiments can be combined to the extent technically feasible, and combinations thereof are also included within the scope of the present invention, as long as they retain the features of the present invention. [Explanation of Symbols]

[0052] 1 bathroom 10 Washing area floor 10a surface 10h Drain port 20 Drainage Units 31 Water seal tube 31a top end 32 Drain hole 33. Inner self 33a 1st slope part 33a1 top end 33b 2nd slope part 40 Hair Catchers 40a Lower part 40b upper part 40c top end 41 Bottom 41a Through hole 43 Side part 44 Contact part 44a Exterior 44b Inner 46 Regulatory Department 46a Vertical plate part 46b Horizontal plate part 46c opening 50 Hair Catchers 51 Regulatory Department 53 Horizontal plate part 55 Vertical board section 90 Bathtub 92 Drain pipe 94 Bath Apron 96a~96f Wall Panels W drainage

Claims

1. A water seal cylinder, A hair catcher placed on the aforementioned water seal cylinder, A bathroom drainage unit equipped with, The aforementioned hair catcher is A contact portion that contacts the water seal cylinder in a planar or linear manner, A restricting part that contacts the water seal cylinder when the hair catcher is displaced and restricts the movement of the hair catcher, A bathroom drainage unit that has [this feature].

2. The aforementioned regulatory body, Multiple vertical plate portions extending downward from the contact portion, A horizontal plate portion located below the aforementioned contact portion and connecting the plurality of vertical plate portions, A bathroom drain unit according to claim 1, having the following:

3. The inner surface of the water seal cylinder is The first inclined portion that the contact portion of the hair catcher contacts, A second inclined portion is connected to the upper end of the first inclined portion and has an angle of inclination with respect to the horizontal direction that is smaller than that of the first inclined portion, It has, The bathroom drain unit according to claim 1, wherein the upper end of the hair catcher is located below a virtual line extending from the upper end of the first inclined portion at the same inclination angle as the second inclined portion.

4. The bathroom drain unit according to claim 3, wherein the inner surface of the contact portion has an inclination angle with respect to the horizontal direction that is greater than or equal to the inclination angle of the second inclined portion of the water seal cylinder.

5. The bathroom drain unit according to claim 1, wherein the weight of the hair catcher is greater at the bottom than at the center than at the top.

6. The inner surface of the water seal cylinder is The first inclined portion that the contact portion of the hair catcher contacts, A second inclined portion connected to the upper end of the first inclined portion, It has, The bathroom drainage unit according to claim 1, wherein the first inclined portion and the second inclined portion are flat surfaces in the circumferential direction.

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