Drainage device and sealing water forming member

Abstract

To provide a drainage device that allows a sealing water forming member to be easily removed to the outside of a trap body.SOLUTION: A drainage device 2 comprises: a trap body 4 having an inflow part 18 into which drain water flows, a storage space 22 capable of temporarily storing the drain water flowing from the inflow part 18, and an outflow part 24 projecting cylindrically from an inner bottom part below the inflow part 18 toward the inflow part 18 and from which the drain water flowing from the inflow part 18 flows out; a sealing water forming member 10 for forming sealing water by the drain water stored in the storage space 22 of the trap body 4; and a collecting member 8 disposed above the outflow part 24 of the trap body 4 to collect debris flowing from the inflow part 18 of the trap body 4. The sealing water forming member 10 has: a lidded cylindrical sealing water bowl 44 disposed so as to cover the outflow part 24 of the trap body 4 from above; and a grip 48 extending from the sealing water bowl 44 to the vicinity of the inflow part 18 of the trap body 4.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a drainage device for draining wastewater from, for example, a sink in a kitchen into the sewer, and a water seal forming member used therefor.

Background Art

[0002] There is known a drainage device for draining wastewater from a sink in a compact kitchen (so-called mini-kitchen) installed in an apartment for a single household into the sewer. As one of such drainage devices for a mini-kitchen, Patent Documents 1 and 2 disclose a drainage device in which a water seal forming member for forming a water seal inside a trap body and a garbage basket for collecting garbage flowing into the trap body are integrated.

[0003] In the drainage devices disclosed in Patent Documents 1 and 2, when the garbage basket is taken out of the trap body during cleaning of the garbage basket, the water seal forming member integrated with the garbage basket is also taken out of the trap body. At this time, since no water seal is formed inside the trap body, the interior of the room communicates with the sewer, and the odor from the sewer flows back into the room.

[0004] Therefore, it has been proposed to use the drainage device disclosed in Patent Document 3 as a drainage device for a mini-kitchen so that only the garbage basket can be taken out of the trap body during cleaning of the garbage basket. In the drainage device disclosed in Patent Document 3, the water seal forming member and the garbage basket are separate, and a cross-shaped short knob is formed on the upper surface of the water seal forming member.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0006] When the drainage device disclosed in Patent Document 3 is used as a drainage device for a mini-kitchen, the trap body is formed in a slender shape with a relatively small inner diameter (for example, about 85 mm) to match the size of the drain outlet of the sink in the mini-kitchen. Therefore, when the user performs cleaning or maintenance of the drainage device, etc., it is difficult for the user to put their hand inside the trap body to reach the knob of the water-sealing forming member, and there arises a problem that the water-sealing forming member cannot be easily taken out of the trap body.

[0007] The present invention aims to solve the above-described problems, and an object thereof is to provide a drainage device and a water-sealing forming member that can easily take out the water-sealing forming member to the outside of the trap body.

MEANS FOR SOLVING THE PROBLEMS

[0008] A drainage device according to one aspect of the present invention includes an inflow portion into which drainage flows, a storage space capable of temporarily storing the drainage flowing in from the inflow portion, an outflow portion that protrudes cylindrically from the inner bottom portion below the inflow portion toward the inflow portion and through which the drainage flowing in from the inflow portion flows out, a trap body having the above, a water-sealing forming member for forming a water seal by the drainage stored in the storage space of the trap body, and a collecting member disposed above the outflow portion of the trap body for collecting dust flowing in from the inflow portion of the trap body. The water-sealing forming member has a covered cylindrical water-sealing bowl disposed so as to cover the outflow portion of the trap body from above, and a handle extending from the water-sealing bowl to the vicinity of the inflow portion of the trap body.

EFFECTS OF THE INVENTION

[0009] According to a drainage device or the like according to one aspect of the present invention, the water-sealing forming member can be easily taken out to the outside of the trap body.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0011] The drainage device according to the first aspect of the present invention includes an inflow portion into which drainage flows, a storage space capable of temporarily storing the drainage flowing in from the inflow portion, and a cylindrical protrusion from the inner bottom portion below the inflow portion toward the inflow portion, and an outflow portion through which the drainage flowing in from the inflow portion flows out. A trap main body having, a water seal forming member for forming a water seal by the drainage stored in the storage space of the trap main body, and a collection member disposed above the outflow portion of the trap main body for collecting dust flowing in from the inflow portion of the trap main body. The water seal forming member includes a lid-shaped cylindrical water seal bowl disposed so as to cover the outflow portion of the trap main body from above, and a handle extending from the water seal bowl to the vicinity of the inflow portion of the trap main body.

[0012] According to this aspect, the handle of the water seal forming member extends from the water seal bowl to the vicinity of the inflow portion of the trap main body. Thereby, even when the trap main body is formed in a slender shape, when the user performs cleaning or maintenance of the drainage device, etc., the user can easily reach the upper end portion of the handle of the water seal forming member by putting his hand inside the trap main body. As a result, the user can easily take out the water seal forming member to the outside of the trap main body by pinching and pulling up the upper end portion of the handle with his hand.

[0013] Further, in the drainage device according to the second aspect of the present invention, in the first aspect, the handle may be configured to be disposed along the inner side surface of the trap main body.

[0014] According to this aspect, the operability when the user pinches the upper end portion of the handle with his hand can be improved.

[0015] Further, in the drainage device according to the third aspect of the present invention, in the second aspect, the collection member may be configured to include an attachment portion disposed at the inflow portion of the trap main body, and a dust storage net portion disposed so as to hang down from the attachment portion and storing dust inside.

[0016] According to this aspect, for example, when a large amount of garbage is stored in the garbage storage net part, the garbage storage net part will sag while extending under the weight of the garbage, avoiding the handle of the water seal forming member from the attachment part. As a result, since the garbage in the garbage storage net part is not arranged near the handle of the water seal forming member, a flow path for the drainage to flow down inside the trap main body can be secured.

[0017] Further, in the drainage device according to the fourth aspect of the present invention, in the second aspect or the third aspect, the drainage device further includes an annular flange member disposed at the inflow part of the trap main body for attaching the trap main body to an object, and when the water seal bowl of the water seal forming member floats up from the outflow part of the trap main body, the upper end part of the handle may be configured to contact the flange member.

[0018] According to this aspect, for example, when a large amount of drainage flows in from the inflow part of the trap main body, the water seal bowl of the water seal forming member may float up from the outflow part due to the momentum of the drainage flowing into the inside of the trap main body. At this time, by the upper end part of the handle of the water seal forming member contacting the flange member, it is possible to suppress the water seal forming member from completely coming off from the outflow part. As a result, even when the water seal forming member floats up from the outflow part, the state where the water seal is formed inside the trap main body can be maintained.

[0019] Further, in the drainage device according to the fifth aspect of the present invention, in any one of the first aspect to the fourth aspect, the upper end part of the handle may be configured to be disposed between the lower end part of the collection member and the inflow part of the trap main body.

[0020] According to this aspect, when the user performs cleaning or maintenance of the drainage device, etc., the user can easily put their hand into the inside of the trap main body and reach the upper end part of the handle of the water seal forming member.

[0021] Further, in the drainage device according to the sixth aspect of the present invention, in any one of the first to fifth aspects, the water-sealing forming member may be further configured to extend downward from the water-sealing bowl, be inserted into the outflow portion, and have a claw portion that engages with the inner peripheral surface of the outflow portion.

[0022] According to this aspect, the water-sealing forming member can be easily attached to the outflow portion of the existing trap body.

[0023] The water-sealing forming member according to the seventh aspect of the present invention is a water-sealing forming member attached to a trap body having an inflow portion into which drainage flows, a storage space capable of temporarily storing the drainage flowing in from the inflow portion, and an outflow portion that protrudes cylindrically from the inner bottom portion below the inflow portion toward the inflow portion and through which the drainage flowing in from the inflow portion flows out, and includes a lid-shaped cylindrical water-sealing bowl disposed so as to cover the outflow portion of the trap body from above, and a handle extending vertically from the water-sealing bowl toward the inflow portion of the trap body.

[0024] According to this aspect, the handle of the water-sealing forming member extends vertically from the water-sealing bowl toward the inflow portion of the trap body. Thereby, even when the trap body is formed in a slender shape, when the user performs cleaning or maintenance of the drainage device, etc., the user can easily reach the upper end portion of the handle of the water-sealing forming member by putting the hand into the trap body. As a result, the user can easily take out the water-sealing forming member to the outside of the trap body by pinching and pulling up the upper end portion of the handle with the hand.

[0025] Further, in the water-sealing forming member according to the eighth aspect of the present invention, in the seventh aspect, the handle may be configured to extend vertically from the outer edge of the water-sealing bowl toward the inflow portion of the trap body.

[0026] According to this aspect, the operability when the user pinches the upper end portion of the handle with the hand can be improved.

[0027] Hereinafter, embodiments will be specifically described with reference to the drawings.

[0028] Note that all of the embodiments described below show comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples and are not intended to limit the present invention. In addition, among the components in the following embodiments, components not described in the independent claims indicating the most general concept are described as optional components.

[0029] (Embodiment) [1. Configuration of Drainage Device] With reference to FIGS. 1 to 8, the configuration of the drainage device 2 according to the embodiment will be described. FIG. 1 is a cross-sectional view of the drainage device 2 according to the embodiment. FIG. 2 is an exploded cross-sectional view of the drainage device 2 according to the embodiment. FIG. 3 is a perspective view showing the collection member 8 of the drainage device 2 according to the embodiment. FIG. 4 is a perspective view showing the collection member 8 of the drainage device 2 according to the embodiment as viewed from an angle different from that of FIG. 3. FIG. 5 is a perspective view showing the water-sealing forming member 10 of the drainage device 2 according to the embodiment. FIG. 6 is a perspective view showing the water-sealing forming member 10 of the drainage device 2 according to the embodiment as viewed from an angle different from that of FIG. 5. FIG. 7 is a perspective view showing the water-sealing forming member 10 of the drainage device 2 according to the embodiment as viewed from an angle different from those of FIGS. 5 and 6. FIG. 8 is a cross-sectional view of the water-sealing forming member 10 of the drainage device 2 according to the embodiment taken along line VIII-VIII of FIG. 5.

[0030] In FIGS. 1 to 8, the vertical direction (axial direction) of the drainage device 2 is taken as the Z-axis direction. Also, the plus side in the Z-axis direction is defined as "up", and the minus side in the Z-axis direction is defined as "down".

[0031] In this embodiment, the drainage device 2 is a drainage device for a mini-kitchen that drains the wastewater from the sink of the mini-kitchen installed in a single-family apartment or the like to the sewer, and is detachably attached to the drain outlet (an example of the object) (not shown) of the sink of the mini-kitchen. As shown in FIGS. 1 and 2, the drainage device 2 includes a trap body 4, a flange member 6, a collection member 8, and a water seal forming member 10.

[0032] The trap body 4 has a first main body portion 12, a flange portion 14, and a second main body portion 16. The length of the trap body 4 in the vertical direction (Z-axis direction) is, for example, about 205 mm.

[0033] The first main body portion 12 is formed in a cylindrical shape and extends along the vertical direction. The inner diameter of the first main body portion 12 is, for example, about 85 mm. In order to conform to the dimensions of the drain outlet of the sink of the mini-kitchen, the trap body 4 is preferably a thin-type trap body with an inner diameter of the first main body portion 12 of 100 mm or less.

[0034] An inflow portion 18 that is opened in a circular shape is formed at the upper end portion of the first main body portion 12. Wastewater from the sink of the mini-kitchen flows into the inflow portion 18. A female screw portion 20 is formed on the inner peripheral surface of the first main body portion 12 below the inflow portion 18. The female screw portion 20 is formed over the entire circumference of the first main body portion 12 in the circumferential direction. Further, a storage space 22 capable of temporarily storing the wastewater flowing in from the inflow portion 18 is formed inside the first main body portion 12.

[0035] In addition, an outflow portion 24 is disposed inside the first main body portion 12. The outflow portion 24 is formed in a cylindrical shape and protrudes upward (the positive side in the Z-axis direction) from the inner bottom portion at the lower end portion of the first main body portion 12 toward the inflow portion 18. The outflow portion 24 is formed in a tapered shape with a reduced inner diameter as it goes upward. A part of the wastewater (water seal) stored in the storage space 22 of the first main body portion 12 is washed away by the wastewater flowing in from the inflow portion 18 and flows out from the outflow portion 24 to the second main body portion 16.

[0036] The flange portion 14 protrudes annularly radially outward of the first main body portion 12 from the outer peripheral surface at the upper end portion of the first main body portion 12. The outer diameter of the flange portion 14 is, for example, about 110 mm.

[0037] The second main body portion 16 is formed in a cylindrical shape and extends downward (the negative side in the Z-axis direction) from the lower end portion of the first main body portion 12. The outer diameter of the second main body portion 16 is smaller than the outer diameter of the first main body portion 12. The inside of the second main body portion 16 communicates with the inside of the outflow portion 24 of the first main body portion 12. A drain pipe for guiding drainage to the sewer is detachably connected to the second main body portion 16.

[0038] The flange member 6 has a flange main body portion 26 and a flange portion 28. The flange main body portion 26 is formed in a cylindrical shape, and the outer diameter of the flange main body portion 26 is smaller than the inner diameter of the first main body portion 12. A male screw portion 30 is formed on the outer peripheral surface of the flange main body portion 26. The male screw portion 30 is formed over the entire circumference in the circumferential direction of the flange main body portion 26. The flange portion 28 protrudes annularly radially outward of the flange main body portion 26 from the peripheral edge portion of the upper opening of the flange main body portion 26. The outer diameter of the flange portion 28 is, for example, about 115 mm.

[0039] When attaching the trap main body 4 to the drain outlet of the sink of the mini-kitchen, first, bring the trap main body 4 close to the drain outlet from below the sink, and bring the flange portion 14 of the trap main body 4 into contact with the peripheral edge portion of the drain outlet from below. Next, insert the flange main body portion 26 of the flange member 6 into the inflow portion 18 of the first main body portion 12 of the trap main body 4, and rotate the flange member 6 in a predetermined direction with respect to the trap main body 4, thereby fastening the male screw portion 30 of the flange main body portion 26 and the female screw portion 20 of the first main body portion 12.

[0040] By fastening the male screw portion 30 of the flange main body portion 26 and the female screw portion 20 of the first main body portion 12 in this way, the flange portion 28 of the flange member 6 comes into contact with the peripheral edge of the drain opening from above. Thereby, the peripheral edge of the drain opening is clamped vertically between the flange portion 14 of the trap main body 4 and the flange portion 28 of the flange member 6, and the trap main body 4 is attached to the drain opening.

[0041] The collection member 8 is disposed above the outflow portion 24 of the first main body portion 12 of the trap main body 4, and collects dust (for example, food residues, etc.) contained in the wastewater flowing in from the inflow portion 18 of the first main body portion 12. The collection member 8 has an attachment portion 32 and a dust storage net portion 34.

[0042] As shown in FIGS. 3 and 4, the attachment portion 32 has an annular attachment main body portion 36, a disposal opening 38 opened radially inward of the attachment main body portion 36, a pair of light-shielding portions 40 protruding radially inward from the inner peripheral edge of the attachment main body portion 36, and an annular locking portion 42 supported on the back surface side (trap main body 4 side) of the attachment main body portion 36. A protrusion 43 protruding upward is formed on the locking portion 42.

[0043] As shown in FIG. 1, the attachment main body portion 36 is disposed at the inflow portion 18 of the first main body portion 12 of the trap main body 4 by being placed on the flange portion 28 of the flange member 6. Thereby, the disposal opening 38 of the attachment portion 32 communicates with the inflow portion 18 of the first main body portion 12. At this time, in order to prevent the dust in the dust storage net portion 34 from being completely visible from the outside, a part of the inflow portion 18 of the first main body portion 12 is covered by the pair of light-shielding portions 40.

[0044] The garbage storage net part 34 is formed by knitting a net-like material having elasticity and flexibility into a bag shape. An annular rubber (not shown) for constricting the opening is knitted into the opening of the garbage storage net part 34. The opening of the garbage storage net part 34 is detachably locked to the locking part 42 of the attachment part 32. At this time, in order to make it difficult for the garbage storage net part 34 to come off from the locking part 42, a part of the opening of the garbage storage net part 34 is caught by the protrusion 43 of the locking part 42. Thereby, the garbage storage net part 34 is arranged to hang down from the attachment part 32 and is arranged inside the first main body part 12 (near the upper end part of the first main body part 12).

[0045] The garbage contained in the drainage flowing in from the disposal port 38 of the attachment part 32 is stored (collected) inside the garbage storage net part 34 through the inflow part 18 of the first main body part 12. At this time, since the garbage storage net part 34 has water permeability, the drainage flowing in from the disposal port 38 of the attachment part 32 passes through the garbage storage net part 34 and flows down inside the first main body part 12.

[0046] As shown in FIGS. 5 to 8, the water sealing forming member 10 has a water sealing bowl 44, a plurality of claw parts 46, and a handle 48. The water sealing forming member 10 is formed of, for example, resin.

[0047] The water sealing bowl 44 is formed in a lid-covered cylindrical shape. That is, the upper end of the water sealing bowl 44 is closed, and the lower end of the water sealing bowl 44 is open. The inner diameter of the water sealing bowl 44 is larger than the outer diameter of the outflow part 24 of the first main body part 12 of the trap main body 4. Also, the length of the water sealing bowl 44 in the vertical direction is longer than the length of the outflow part 24 in the vertical direction. A plurality of leg parts 50 protruding downward are formed at the lower end part of the water sealing bowl 44. The plurality of leg parts 50 are arranged at intervals along the circumferential direction of the water sealing bowl 44.

[0048] Each of the plurality of claw portions 46 extends downward from the back surface (the surface on the outflow portion 24 side) of the upper end portion of the water seal bowl 44. The plurality of claw portions 46 are arranged at intervals along the circumferential direction of the water seal bowl 44. Each of the plurality of claw portions 46 is elastically deformable in the radial direction of the water seal bowl 44. Note that, on the inner peripheral surface of the water seal bowl 44, a plurality of ribs 52 for reinforcing the plurality of claw portions 46 are formed. The plurality of ribs 52 are each connected to the base end portion of each of the plurality of claw portions 46 and extend along the axial direction (Z-axis direction) of the water seal bowl 44.

[0049] The handle 48 is formed in a rod shape (vertically long shape) extending along the vertical direction and has a column portion 54 and a knob portion 56. The column portion 54 extends upward from the outer edge of the water seal bowl 44 in a rod shape. A depression 57 is formed at the upper end portion of the column portion 54 to facilitate a user to hook a finger. The knob portion 56 is formed, for example, in a plate shape and is disposed at the upper end portion of the column portion 54. Note that the knob portion 56 is disposed obliquely with respect to the vertical direction. A protrusion 59 is formed on the upper surface of the knob portion 56. In the present embodiment, the handle 48 is formed in a rod shape, but it is not limited thereto, and for example, it may be formed in an arch shape extending in a vertically long shape along the vertical direction.

[0050] The water-sealing forming member 10 is detachably attached to the outflow portion 24 of the first main body portion 12 of the trap main body 4. Specifically, the water-sealing bowl 44 is disposed so as to cover the outflow portion 24 of the first main body portion 12 from above. When attaching the water-sealing forming member 10 to the outflow portion 24 of the first main body portion 12, the user hooks a finger in the depression 57 at the upper end of the column portion 54 of the handle 48 and pushes the upper surface of the knob portion 56 downward with a finger. At this time, the ridge 59 of the knob portion 56 functions as an anti-slip to suppress the slipping of the user's finger. Also, each of the plurality of claw portions 46 is inserted into the inside of the outflow portion 24 of the first main body portion 12 in a state of being elastically deformed radially inward of the water-sealing bowl 44 and engaged with the inner peripheral surface of the outflow portion 24. At this time, each of the plurality of claw portions 46 elastically presses against the inner peripheral surface of the water-sealing bowl 44 by an elastic restoring force directed radially outward of the water-sealing bowl 44. Also, the plurality of leg portions 50 of the water-sealing bowl 44 are supported by the inner bottom portion of the first main body portion 12. At this time, the inside and the outside of the water-sealing bowl 44 communicate with each other through the space between the plurality of leg portions 50.

[0051] Also, the handle 48 extends in a rod shape from the outer edge of the water-sealing bowl 44 to the vicinity of the inflow portion 18 of the first main body portion 12. At this time, the column portion 54 of the handle 48 extends along the inner peripheral surface (an example of the inner side surface) of the first main body portion 12. That is, the column portion 54 of the handle 48 is disposed at a radial position biased toward the inner peripheral surface side of the first main body portion 12 with respect to the central axis of the first main body portion 12. Also, the upper end portion of the knob portion 56 of the handle 48 is disposed in the vicinity of the inflow portion 18 of the first main body portion 12, that is, between the lower end portion of the dust storage net portion 34 in a state where no dust is stored and the inflow portion 18 of the first main body portion 12. In other words, the upper end portion of the knob portion 56 of the handle 48 is disposed in the vicinity of the inflow portion 18 of the first main body portion 12, that is, at a position closer to the inflow portion 18 than the intermediate position in the vertical direction between the inflow portion 18 and the upper end of the water-sealing bowl 44.

[0052] Part of the wastewater flowing in from the inflow part 18 of the first main body part 12 is temporarily stored as water seal in the storage space 22 of the first main body part 12. That is, when the water seal forming member 10 is attached to the trap main body 4, the water seal bowl 44 is arranged between the first main body part 12 and the outflow part 24. At this time, water seal is formed by filling part of the flow path with wastewater outside and inside the water seal bowl 44, and backflow of odors from the drain pipe connected to the second main body part 16 into the room, invasion of insects, etc. are suppressed.

[0053] [2. Effect] With reference to FIGS. 1 and 9 to 11, the effects obtained by the wastewater treatment device 2 according to the embodiment will be described. FIG. 9 is a cross-sectional view of the wastewater treatment device 2 according to the embodiment in a state where the water seal forming member 10 has risen from the outflow part 24. FIG. 10 is a cross-sectional view of the wastewater treatment device 100 according to the comparative example in a state where a large amount of garbage 58 is stored in the garbage storage net part 34. FIG. 11 is a cross-sectional view of the wastewater treatment device 2 according to the embodiment in a state where a large amount of garbage 58 is stored in the garbage storage net part 34.

[0054] For convenience of explanation, in FIG. 9, the illustration of the garbage storage net part 34 is omitted. Also, in the wastewater treatment device 100 according to the comparative example shown in FIG. 10, the same components as those of the wastewater treatment device 2 according to the embodiment shown in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted.

[0055] In the present embodiment, as shown in FIG. 1, the handle 48 of the water seal forming member 10 extends from the outer edge of the water seal bowl 44 to the vicinity of the inflow part 18 of the first main body part 12. Thereby, even when the trap main body 4 is of a thin shape, when the user performs cleaning or maintenance of the wastewater treatment device 2, etc., the user can easily put his hand into the trap main body 4 and reach the knob part 56 of the handle 48 of the water seal forming member 10. As a result, the user can easily take out the water seal forming member 10 to the outside of the trap main body 4 by pinching and pulling up the knob part 56 of the handle 48 with his hand.

[0056] In addition, each of the plurality of claw portions 46 of the water-sealing forming member 10 is engaged with the inner peripheral surface of the outflow portion 24, so that the water-sealing forming member 10 can be easily attached to the outflow portion 24 of the existing trap main body 4. Further, as described above, since the outflow portion 24 is formed in a tapered shape with a reduced inner diameter as it goes upward, the plurality of engaged claw portions 46 are less likely to come off from the inner peripheral surface of the outflow portion 24.

[0057] Also, as shown in FIG. 9, for example, when a large amount of drainage from a sink flows in from the inflow portion 18 of the first main body portion 12, due to the momentum of the drainage flowing into the first main body portion 12, the water-sealing forming member 10 may float up from the outflow portion 24. At this time, by the upper end portion of the knob portion 56 of the handle 48 abutting against the lower end portion of the flange main body portion 26 of the flange member 6, it is possible to prevent the water-sealing forming member 10 from completely coming off from the outflow portion 24. As a result, even when the water-sealing forming member 10 floats up from the outflow portion 24, it is possible to maintain the state in which water sealing is formed inside the first main body portion 12.

[0058] Also, as shown in FIG. 10, in the drainage device 100 according to the comparative example, the water-sealing forming member 102 does not have the handle 48 described above. Therefore, when a large amount of garbage 58 (for example, tea leaves, etc.) is stored in the garbage storage net portion 34, the garbage storage net portion 34 hangs down from the attachment portion 32 while stretching due to the weight of the garbage 58, and the garbage 58 in the garbage storage net portion 34 is arranged to spread over substantially the entire radial direction of the trap main body 4. As a result, the flow path for drainage to flow down inside the trap main body 4 is blocked by the garbage 58 in the garbage storage net portion 34.

[0059] In contrast, as shown in FIG. 11, in the drainage device 2 according to the embodiment, the water-sealing forming member 10 has a handle 48, and this handle 48 is arranged along the inner peripheral surface of the first main body portion 12. Therefore, when a large amount of garbage 58 is stored in the garbage storage net portion 34, the garbage storage net portion 34 sags while avoiding the handle 48 from the mounting portion 32 while stretching due to the weight of the garbage 58. As a result, the garbage 58 in the garbage storage net portion 34 is not arranged near the handle 48, so that a flow path for the drainage water to flow down can be secured inside the trap main body 4.

[0060] [3. Modification Example] With reference to FIG. 12, the configuration of the drainage device 2A according to the modification example of the embodiment will be described. FIG. 12 is a cross-sectional view of the drainage device 2A according to the modification example of the embodiment.

[0061] As shown in FIG. 12, in the drainage device 2A according to the modification example of the embodiment, the configuration of the collection member 8A is different from that of the collection member 8 of the drainage device 2 described above. Specifically, the collection member 8A is a water-permeable garbage basket formed of a hard material such as metal or resin. The collection member 8A is formed, for example, in a bottomed cylindrical shape with an open upper end, and is configured separately from the water-sealing forming member 10. The collection member 8A is detachably supported, for example, at the lower end portion of the flange main body portion 26 of the flange member 6.

[0062] Even when the collection member 8A is configured as a garbage basket as in this modification example, the same effects as those described above can be obtained. Further, by making the collection member 8A a separate member from the water-sealing forming member 10, only the collection member 8A can be taken out of the trap main body 4 during cleaning of the collection member 8A. Therefore, compared with Patent Documents 1 and 2 described in the background art section, the cleanability of the collection member 8A can be improved.

[0063] In addition, in this modified example, the bottom of the collection member 8A is formed in a flat shape, but it is not limited to this. For example, the bottom of the collection member 8A may be formed in a stepped shape so as to avoid the handle 48 of the water sealing forming member 10. Thereby, a part of the bottom of the collection member 8A can be disposed below the knob portion 56 of the handle 48, and the capacity of the garbage that can be accommodated in the collection member 8A can be increased. Further, the collection member 8A is not limited to the above-described shape and may be formed in any shape.

[0064] (Other modified examples, etc.) As described above, the drainage device according to one or more aspects has been described based on the above embodiments. However, the present invention is not limited to the above embodiments. As long as the gist of the present invention is not deviated from, various modifications conceived by those skilled in the art applied to the above embodiments, or forms constructed by combining components in different embodiments may also be included within the scope of one or more aspects.

Industrial Applicability

[0065] The drainage device according to the present invention is applicable to, for example, a drainage device for a mini-kitchen for draining water from a sink in a mini-kitchen.

Explanation of Signs

[0066] 2, 2A, 100 Drainage device 4 Trap body 6 Flange member 8, 8A Collection member 10, 102 Water sealing forming member 12 First main body part 14 Flange part 16 Second main body part 18 Inflow part 20 Female screw part 22 Storage space 24 Outflow part 26 Flange main body part 28 Flange part 30 Male screw part 32 Mounting part 34 Garbage storage net part 36 Mounting main body 38 Disposal opening 40 Covering part 42 Locking part 43 Protrusion 44 Water seal bowl 46 Claw part 48 Handle 50 Leg part 52 Rib 54 Column part 56 Knob part 57 Depression 58 Garbage 59 Ridge

Claims

1. A trap body having an inflow portion into which drainage water flows, a storage space capable of temporarily storing the drainage water flowing in from the inflow portion, and an outflow portion that protrudes cylindrically from the inner bottom portion below the inflow portion toward the inflow portion and through which the drainage water flowing in from the inflow portion flows out; A water seal forming member for forming a water seal by the drainage water stored in the storage space of the trap body; A collection member disposed above the outflow portion of the trap body for collecting debris flowing in from the inflow portion of the trap body; The water seal forming member A lid-shaped cylindrical water seal bowl disposed so as to cover the outflow portion of the trap body from above; And a handle extending from the water seal bowl to the vicinity of the inflow portion of the trap body. Drainage device.

2. The handle is disposed along the inner surface of the trap body. The drainage device according to claim 1.

3. The collection member A mounting portion disposed at the inflow portion of the trap body; And a dust storage net portion disposed so as to hang down from the mounting portion and storing dust inside. The drainage device according to claim 2.

4. The drainage device further includes an annular flange member disposed at the inflow portion of the trap body for attaching the trap body to an object. When the water seal bowl floats up from the outflow portion of the trap body, the upper end portion of the handle abuts against the flange member. The drainage device according to claim 2 or 3.

5. The upper end portion of the handle is disposed between the lower end portion of the collection member and the inflow portion of the trap body. The drainage device according to any one of claims 1 to 3.

6. The water-sealing forming member further has a claw portion that extends downward from the water-sealing bowl, is inserted into the outflow portion, and engages with the inner peripheral surface of the outflow portion. The drainage device according to any one of claims 1 to 3.

7. A water-sealing forming member attached to a trap body having an inflow portion into which drainage flows, a storage space capable of temporarily storing the drainage flowing in from the inflow portion, and an outflow portion that protrudes cylindrically from the inner bottom portion below the inflow portion toward the inflow portion and through which the drainage flowing in from the inflow portion flows out, a lid-shaped cylindrical water-sealing bowl disposed so as to cover the outflow portion of the trap body from above, and a handle that extends vertically from the water-sealing bowl toward the inflow portion of the trap body. The water-sealing forming member.

8. The handle extends vertically from the outer edge of the water-sealing bowl toward the inflow portion of the trap body. The water-sealing forming member according to claim 7.

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