Drainage unit

Abstract

To provide a drainage unit that can easily adjust a height of a toilet bowl.SOLUTION: The drainage unit 1 comprises: an upstream member 2 having an inflow port 21 into which drainage from the toilet bowl flows in; and a downstream member 3 connected to a downstream side of the upstream member 2. The upstream member 2 is configured to be connectable to the downstream member 3 in either a first posture P1 or a second posture different from the first posture P1. A height of the inflow port 21 is different between the first posture P1 and the second posture of the upstream member 2.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a flush unit that is connected to a toilet bowl. [Background technology]

[0002] A technology for connecting a toilet bowl and a drain pipe via a dedicated socket is disclosed in Patent Document 1. This socket has a small diameter section and a large diameter section on the same axis, with the large diameter section connecting to the toilet bowl side and the small diameter section connecting to the drain pipe side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-209786 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional technology described above, the height of the drain pipe and the height of the toilet connected to the drain pipe have a one-to-one relationship. Therefore, in order to adjust the height of the toilet, it is necessary to adjust the height of the drain pipe, which may require the destruction of a wall in a renovation, for example.

[0005] An object of the present disclosure is to provide a drainage unit that allows for easy adjustment of the height of a toilet bowl. [Means for solving the problem]

[0006] A drainage unit according to one aspect of the present disclosure is a drainage unit connected to a toilet bowl, and includes an upstream member having an inlet through which drainage water from the toilet bowl flows in, and a downstream member connected to the downstream side of the upstream member. The upstream member is configured to be connectable to the downstream member in either a first position or a second position, and the height of the inlet differs between the first position and the second position of the upstream member. Effect of the Invention

[0007] The present disclosure provides the advantage of being able to easily adjust the height of a toilet bowl. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a toilet bowl and a drainage unit connected to the toilet bowl in a first embodiment. [Diagram 2] FIG. 2 is a perspective view of the drainage unit. [Diagram 3] FIG. 3 is a vertical cross-sectional view of the drainage unit. [Figure 4] FIG. 4 is an exploded perspective view of the drainage unit. [Diagram 5] FIG. 5 is a rear view of an upstream member included in the drainage unit. [Figure 6] FIG. 6 is a perspective view of the drainage unit with the upstream member in the second position. [Figure 7] FIG. 7 is a vertical cross-sectional view of the drainage unit of the above with the upstream member in the second position. [Figure 8] FIG. 8 is a perspective view of a drainage unit according to the second embodiment. [Figure 9] FIG. 9 is an exploded perspective view of the drainage unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [First embodiment] FIG. 1 is a perspective view of a toilet 9 and a drainage unit 1 of the first embodiment, seen obliquely from behind.

[0010] (Toilet) In the first embodiment, the toilet 9 is a wall-drain urinal. The toilet 9 is mainly composed of a bowl portion 91 made of synthetic resin. The bowl portion 91 is formed to be long in the vertical direction as a whole, and a drain portion 92 is provided at its lower portion. A trap pipe 98 is connected to the drain portion 92.

[0011] In the following description, front-back, up-down, left-right directions are used based on the state in which the toilet 9 is installed (the state shown in FIG. 1). The direction in which a user is positioned relative to the toilet 9 is the front.

[0012] Bowl portion 91 has a curved shape that is concave toward the rear as a whole so as to receive the user's urine and direct it toward drainage portion 92. In addition to bowl portion 91, toilet 9 is integrally provided with left and right side walls 93, 94 that extend rearward from both left and right end edges of bowl portion 91, and a front wall 95 that is provided so as to hide the lower end portion of bowl portion 91 and drainage unit 1 from the front. The left and right side walls 93, 94 and the front wall 95 are smoothly continuous.

[0013] The trap pipe 98 integrally includes a U-shaped pipe section 981 whose upstream end is connected to the drainage section 92, and a straight pipe section 982 extending rearward from the downstream end of the U-shaped pipe section 981. When the trap pipe 98 is connected to the drainage section 92, the straight pipe section 982 is configured to be horizontal or have a downward slope.

[0014] (Drainage unit) The drainage unit 1 is a wall drainage unit connected to the downstream end of the trap pipe 98, and as shown in Figures 2 to 5 etc., includes an upstream member 2, a downstream member 3 connected to the downstream side of the upstream member 2, and an annular connecting member 8 for connecting the trap pipe 98 and the upstream member 2. The upstream member 2, downstream member 3 and connecting member 8 are configured separately from one another.

[0015] (Upstream component) The upstream member 2 is a pipe member made of synthetic resin, and has an inlet 21 and an outlet 22 on opposite sides in the front-to-rear direction. The inlet 21 is an opening through which wastewater from the toilet bowl 9 flows in, and is located at the front end of the upstream member 2. The outlet 22 is an opening through which the wastewater that has flowed into the upstream member 2 through the inlet 21 flows out, and is located at the rear end of the upstream member 2.

[0016] The inlet 21 and the outlet 22 have significantly different opening widths at the top and bottom. The inlet 21 is a perfect circular opening, and the outlet 22 is an elliptical opening that is long vertically. The term "perfect circle" used in the present text is not limited to a perfect circle in the strict geometrical sense, but includes an almost perfect circle. Similarly, the term "ellipse" used in the present text is not limited to an ellipse in the strict geometrical sense, but includes an almost ellipse. The opening widths at the top and bottom of the outlet 22 are approximately twice as large as those at the top and bottom of the inlet 21. As shown in FIG. 3, FIG. 5, etc., the central axis C1 of the inlet 21 and the central axis C2 of the outlet 22 are at different heights.

[0017] The upstream member 2 integrally comprises a small diameter section 23, a large diameter section 25 having an inner diameter larger than that of the small diameter section 23, and an expanded diameter section 24 connecting the small diameter section 23 and the large diameter section 25. In the upstream member 2, the small diameter section 23, the expanded diameter section 24, and the large diameter section 25 are connected in this order from the upstream side to the downstream side, with the upstream end opening of the small diameter section 23 forming the inlet 21 and the downstream end opening of the large diameter section 25 forming the outlet 22. The downstream end of the large diameter section 25 has an outer shape that is long in the vertical direction.

[0018] (Downstream component) The downstream member 3 is a tubular member made of synthetic resin, and has an inlet 31 and an outlet 32 ​​on opposite sides in the front-to-rear direction. The inlet 31 is an opening through which wastewater from the upstream member 2 flows in, and is located at the front end of the downstream member 3. The outlet 32 ​​is an opening through which wastewater that has flowed into the downstream member 3 through the inlet 31 flows out, and is located at the rear end of the downstream member 3. The outlet 32 ​​is connected to a drain pipe (not shown) provided inside the wall of the building.

[0019] The inlet 31 and the outlet 32 ​​are positioned coaxially, and the upper and lower opening widths are the same. The inlet 31 and the outlet 32 ​​are both circular openings.

[0020] The downstream side member 3 integrally comprises a straight tubular main body 33 and a flange portion 34 extending radially outward from the upstream end of the main body 33. The main body 33 is configured to be horizontal or have a downward slope. The upstream end opening of the straight tubular main body 33 constitutes the inlet 31, and the downstream end opening of the main body 33 constitutes the outlet 32.

[0021] The flange portion 34 has an outer shape of an ellipse that is long in the vertical direction. The center of the flange portion 34 is shifted vertically with respect to the center of the inlet 31. The center of the flange portion 34 is positioned above the center of the inlet 31. In other words, the center of the inlet 31 is shifted downward from the center of the flange portion 34.

[0022] A positioning rib 35 protrudes from the front surface of the flange portion 34. The rib 35 has an elliptical shape that is long in the vertical direction. The dimensions of the rib 35 are set so that the large diameter portion 25 of the upstream member 2 fits inside the rib 35.

[0023] When the downstream member 3 is viewed from the front, the inlet 31 is located inside the rib 35. The inlet 31 is located in a region further below the inner region of the rib 35, and the center of the inlet 31, which has a perfect circular outer shape, is shifted downward from the center of the rib 35, which has an elliptical outer shape.

[0024] (Connection parts) The connecting member 8 is an annular member molded from rubber, and integrally comprises an outer part 81 that is fitted from the outside into the upstream end of the upstream member 2, and an inner part 82 that is inserted from the upstream side into the inlet 21 of the upstream member 2. The inner part 82 is located inside the outer part 81, which has a circular outer shape, and has a tapered shape that gradually becomes smaller in diameter toward the downstream side. The inner part 82 is configured so that the downstream end of the trap tube 98 (i.e. the downstream end of the straight pipe part 982) is inserted into its inside.

[0025] (first posture) 1 to 3 and the like, the upstream member 2 is in a first position P1. At this time, the central axis C1 of the inlet 21 of the upstream member 2 is positioned higher than the central axis C2 of the elliptical outlet 22 (see FIG. 3 and the like). The upper end of the inlet 21 is at the same height as the upper end of the outlet 22, and the lower end of the inlet 21 is at a higher position than the lower end of the outlet 22.

[0026] When the upstream member 2 is in the first position P1, the central axis C3 of the inlet 31 of the downstream member 3 is located lower than the central axis C1 of the inlet 21 of the upstream member 2, and is also located lower than the central axis C2 of the outlet 22 of the upstream member 2. In the drainage unit 1 of the first embodiment, the central axis C3 of the inlet 31 of the downstream member 3 coincides with the central axis of the outlet 32 ​​of the downstream member 3, i.e., it is the central axis of the main body part 33 of the downstream member 3.

[0027] In the drainage unit 1 when the upstream member 2 is in the first position P1, the inlet 21 of the upstream member 2 is positioned one step higher than the outlet 32 ​​of the downstream member 3. Therefore, it is possible to install the toilet 9 at a relatively high position relative to the drain pipe installed inside the wall of the building.

[0028] (Second posture) 6 and 7, the upstream member 2 is in the second position P2. The first position P1 and the second position P2 of the upstream member 2 are inverted positions relative to each other. The position of the upstream member 2 when the upstream member 2 in the first position P1 is rotated 180° around its central axis (central axis C2) is the second position P2.

[0029] The upstream member 2 is configured to be connectable to the downstream member 3 whether in the first position P1 or the second position P2. The large diameter portion 25 of the upstream member 2 has a size and shape that fits inside the rib 35 of the downstream member 3 to be positioned whether in the first position P1 or the second position P2. In other words, the rib 35 of the downstream member 3 has a size and shape that the large diameter portion 25 of the upstream member 2 fits inside and is positioned whether in the first position P1 or the second position P2. The upstream member 2 and the downstream member 3 are preferably connected watertightly using a packing, butyl rubber, an adhesive, or the like.

[0030] As shown in Figures 6 and 7, when the upstream member 2 is in the second posture P2, the central axis C3 of the inlet 31 of the downstream member 3 is at the same height as the central axis C1 of the inlet 21 of the upstream member 2, and more specifically, the central axis C3 and the central axis C1 are coincident.

[0031] In the drainage unit 1 when the upstream member 2 is in the second position P2, the inlet 21 of the upstream member 2 is at the same height as the outlet 32 ​​of the downstream member 3. Therefore, it is possible to install the toilet 9 at a relatively low position relative to a drain pipe installed inside the wall of a building.

[0032] As described above, in the drainage unit 1 of the first embodiment, the height of the inlet 21 relative to the downstream member 3 (in other words, the vertical position of the inlet 21) differs between the first position P1 and the second position P2 of the upstream member 2. Therefore, the position of the upstream member 2 can be selected to be the first position P1 or the second position P2 depending on the height of the drain pipe installed in the building and the desired height at which the toilet 9 is to be installed, and the installation height of the toilet 9 can be relatively easily adjusted (for example, the heights of multiple toilets 9 can be made uniform) without the need to adjust the height of the drain pipe. The position of the downstream member 3 is constant regardless of the position of the upstream member 2.

[0033] As described above, in the drainage unit 1 of the first embodiment, the main body 33 of the downstream member 3 is configured to be horizontal or have a downward slope, and in addition, the upstream member 2 is configured to be horizontal or have a downward slope in both the first position P1 and the second position P2. Therefore, according to the drainage unit 1 of the first embodiment, accumulation of urinary stones in the flow path is suppressed regardless of whether the position of the upstream member 2 is the first position P1 or the second position P2.

[0034] [Second embodiment] 8 and 9 show a drainage unit 1 of a second embodiment. In the following, among the configurations of the second embodiment, the same configurations as those of the first embodiment are denoted by the same reference numerals and detailed description is omitted, and the configurations different from the first embodiment will be described in detail.

[0035] In the drainage unit 1 of the second embodiment, the downstream member 3 further includes a locking structure 37 that locks the upstream member 2. The locking structure 37 includes a plurality of locking claws 371 that form a portion of the circumferential direction of the annular positioning rib 35. The multiple locking claws 371 are positioned at intervals from one another in the circumferential direction of the rib 35, and are configured to elastically lock onto the downstream end of the upstream member 2 when the downstream end is fitted inside the rib 35.

[0036] In the drainage unit 1 of the second embodiment, a flange portion 27 for engaging with a plurality of engaging claws 371 is formed at the downstream end of the upstream member 2. The engaging structure 37 is configured to engage the flange portion 27 of the upstream member 2 when in the first position P1, and to engage the flange portion 27 of the upstream member 2 when in the second position P2.

[0037] Furthermore, the drainage unit 1 of the second embodiment includes a trap member 4 that is specially designed to be directly fixed to the downstream member 3. This trap member 4 is fixed to the downstream member 3 using a fixing device 5 in a state where it is connected to the upstream member 2.

[0038] More specifically, the downstream member 3 has a plurality of support pillars 38 that protrude forward from a flange portion 34 provided at the upstream end portion of the downstream member 3. The plurality of support pillars 38 include two support pillars 38 that protrude from the front surface of the flange portion 34. The two support pillars 38 are located on both the left and right sides of the upstream member 2 when the upstream member 2 and the downstream member 3 are connected. A groove 381 into which the head of a T-bolt 51 (not shown) is inserted is formed at the tip portion of each support pillar 38.

[0039] The trap member 4 integrally comprises a U-shaped pipe section 41 connected to the drain section 92 of the toilet bowl 9, a straight pipe section 42 extending rearward from the downstream end of the U-shaped pipe section 41, and two flange-shaped connecting sections 43 protruding on both the left and right sides from the U-shaped pipe section 41. The two connecting sections 43 are sections that are connected one-to-one to the two support columns 38. Each connecting section 43 is formed with a hole 431 through which the threaded portion of a T-bolt 51 is inserted.

[0040] The fixing device 5 includes a T-bolt 51 and a nut 52 screwed onto the T-bolt 51. The threaded portion of the T-bolt 51 held at the tip of each support 38 is inserted into the hole 431 of the connecting part 43, and the nut 52 is tightened onto the threaded portion protruding from the hole 431, thereby firmly fixing the trap member 4 and the downstream side member 3.

[0041] While the drainage unit of the present disclosure has been described above based on the embodiments shown in the accompanying drawings, the drainage unit of the present disclosure is not limited to the above-described embodiments.

[0042] For example, in each of the above embodiments, the toilet bowl 9 is configured as a urinal, but the toilet bowl 9 may also be configured as a toilet bowl. Also, the toilet bowl 9 is a wall-drained toilet, but it may also be a floor-drained toilet. Also, the drainage unit 1 may further include other parts, or some parts of the drainage unit 1 may be omitted. Also, the first position P1 and the second position P2 of the upstream member 2 are mutually inverted positions, but as long as the height of the inlet 21 differs between the first position P1 and the second position P2, they do not have to be mutually inverted positions.

[0043] In addition, in each of the above embodiments, the upstream member 2 may be screwed directly to the wall, or the upstream member 2 may be screwed to the wall via the downstream member 3, or the downstream member 2 may be screwed to the downstream member 3 fixed to the wall.

[0044] In other configurations of the drainage unit of the present disclosure, it is possible to make appropriate design changes in each embodiment or to apply an appropriate combination of the configurations of each embodiment within the intended scope of the present disclosure.

[0045] [Aspects] As described above based on the embodiment, the drainage unit (1) according to the first aspect has the following configuration. The drainage unit (1) according to the first aspect is a drainage unit (1) connected to a toilet bowl (9), and includes an upstream member (2) having an inlet (21) through which drainage water from the toilet bowl (9) flows in, and a downstream member (3) connected to the downstream side of the upstream member (2). The upstream member (2) is configured to be connectable to the downstream member (3) in either a first position (P1) or a second position (P2), and the height of the inlet (21) differs between the first position (P1) and the second position (P2) of the upstream member (2).

[0046] Therefore, according to the drainage unit (1) of the first aspect, the height of the toilet bowl (9) can be easily adjusted by selecting the first position (P1) or the second position (P2) as the position of the upstream member (2).

[0047] In the drainage unit (1) according to the second aspect, the first position (P1) and the second position (P2) of the upstream member (2) in the first aspect are positions that are inverted from each other.

[0048] Therefore, according to the drainage unit (1) of the second aspect, it is easy to select the first position (P1) or the second position (P2) as the position of the upstream member (2), and the height of the inlet (2) can be effectively changed by selecting the first position (P1) or the second position (P2).

[0049] In the drainage unit (1) according to the third aspect, in the first or second aspect, the downstream member (3) has a locking structure (37) that locks the upstream member (2). The locking structure (37) is configured to be able to lock the upstream member (2) in the first position (P1) and to be able to lock the upstream member (2) in the second position (P2).

[0050] Therefore, according to the drainage unit (1) of the third aspect, regardless of whether the first position (P1) or the second position (P2) is selected as the position of the upstream member (2), the upstream member (2) can be stably held in that position.

[0051] The drainage unit (1) according to the fourth aspect is in any one of the first to third aspects, and further includes a trap member (4) connected to the inlet (21) of the upstream member (2).

[0052] Therefore, according to the drainage unit (1) of the fourth aspect, it is possible to provide the drainage unit (1) as a unit including a portion that constitutes the trap of the toilet bowl (9).

[0053] The drainage unit (1) according to the fifth aspect is the same as that of the fourth aspect, and further includes a fastener (5) that fastens the trap member (4) and the downstream side member (3) together.

[0054] Therefore, according to the drainage unit (1) of the fifth aspect, it is possible to provide the drainage unit (1) as a unit that includes a portion that constitutes a trap for the toilet bowl (9) and that is easy to install.

[0055] The drainage unit (1) according to a sixth aspect is any one of the first to fifth aspects, in which the toilet bowl (9) is a urinal.

[0056] Therefore, according to the drainage unit (1) of the sixth aspect, the height of the urinal can be easily adjusted by selecting the first position (P1) or the second position (P2) as the position of the flow side member (2). [Explanation of symbols]

[0057] 1 Drainage unit 2. Upstream member 21 Inlet 3 Downstream member 37 Locking structure 4 Trap material 5 Fixtures 9. Toilet P1 First posture P2 Second posture

Claims

1. A drainage unit for connection to a toilet bowl, comprising: an upstream member having an inlet through which wastewater from the toilet bowl flows; a downstream member connected to the downstream side of the upstream member, the upstream member is configured to be connectable to the downstream member in either a first position or a second position, The height of the inlet is different between the first position and the second position of the upstream member, the upstream member has a large diameter portion that is fitted into an inner side of a rib of the downstream member and positioned when the upstream member is in either the first position or the second position, The first and second positions of the upstream member are inverted positions relative to each other, The downstream end of the large diameter portion has an outer diameter of an ellipse that is long in the vertical direction. Drainage unit.

2. The downstream member has a locking structure for locking the upstream member, the locking structure is configured to be able to lock the upstream member in the first position and to lock the upstream member in the second position. The drainage unit of claim 1.

3. Further comprising a trap member connected to the inlet of the upstream member. The drainage unit according to claim 1 or 2.

4. Further comprising a fixing device for fixing the trap member and the downstream member. The drainage unit of claim 3.

5. The toilet is a urinal. A drainage unit according to any one of claims 1 to 4.

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