JP7236240B2 - sink - Google Patents

Description

The present invention relates to sinks.

Kitchen wastewater discharged from a kitchen of a restaurant generally contains kitchen waste (garbage), oil and fat, and water. A grease trap (oil-water separator) is used to separate and collect the kitchen waste and fats and oils contained in the kitchen wastewater so that they are not discharged directly into the sewage system.

In Patent Document 1, an oil-water separator capable of effectively removing oil and fat components contained in oil-containing wastewater discharged from a kitchen despite being easy to maintain and having an extremely simple structure, An oil-water separator is described that includes a cylindrical base, a hood, a drain pipe, a trap cover and a circular lid. Patent Literature 1 describes removing the circular lid and the filter lid, pulling up the cover from the base, and then opening the valve connected to the oil-containing drainage discharge hole to drain the oil component.

Utility Model Registration No. 3162445

A general oil-water separator separates fats and oils from kitchen wastewater by using the difference in specific gravity. Conventionally, fats and oils separated in the kitchen wastewater and collected on the surface of the kitchen wastewater are discharged periodically by scooping with a ladle or the like. For this reason, there has been a problem that it takes time and effort to discharge the oil and fat separated from the kitchen wastewater.

In the oil-water separator described in Patent Document 1, the circular lid and the filter lid are removed, the cover is lifted from the base, and then the valve connected to the oil-containing drainage discharge hole is opened to discharge the oil and fat components. However, even in the oil-water separator described in Patent Literature 1, it is required to be able to more easily discharge the oil and fat separated from kitchen waste water.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sink equipped with an oil-water separating device capable of easily discharging fats and oils separated from kitchen wastewater.

In order to solve the above problems, the present invention employs the following means.

[1] A sink comprising a sink portion and an oil-water separator for treating kitchen wastewater containing kitchen waste, fats and oils, and water supplied from the sink portion,
The oil-water separator includes a grease trap section that separates the kitchen wastewater into a fat phase and a water phase based on the difference in specific gravity and sediments the kitchen waste;
a water discharge part for discharging the water phase out of the sink;
a fat and oil discharge unit for discharging the fat and oil phase to the outside of the sink ,
The water discharge part includes a water discharge port for discharging the water phase overflowing when the kitchen waste water in the grease trap part exceeds the storage limit water level, and a drain pipe for discharging the waste water to the outside of the sink. have
The grease discharge part has a substantially cylindrical shape, is provided with a grease inlet on the side surface, and is attached to the drain port of the grease trap part,
The sink is characterized in that the drain port is provided with an opening/closing portion, and by opening the opening/closing portion, the fats and oils that have flowed into the fats/oils inflow port from the fats/separate phases are discharged.

[2] The grease discharge part has a main body and an inner cylinder inserted into the main body,
The body is
As the fats and oils inlet, at least a first fat and oil inlet and a second fat and oil inlet whose opening width in the height direction is narrower than that of the first fat and oil inlet,
The first fat component inlet and the second fat component inlet are provided at positions that do not overlap in plan view,
The inner cylinder is
Having a first opening (inner hole 44a) corresponding to the first fat component inlet,
The inner cylinder is rotatable while being inserted into the main body,
By aligning the first opening with the first grease inlet, the grease that has flowed into the first grease inlet is discharged, and the position of the first opening is positioned at the second grease inlet. The sink according to [1], in which the grease that has flowed into the second grease inlet is discharged by combining the two .

[ 3 ] The main body is
Having an inflow port below the fat and oil inflow port,
The inlet is provided at a position that does not overlap with the first fat inlet and the second fat inlet in a plan view,
The inner cylinder is
Having a second opening corresponding to the inlet,
The sink according to [ 2 ] , wherein the second opening is aligned with the inflow port to discharge wastewater that has flowed into the inflow port from the aqueous phase.

The sink of the present invention has a drain outlet for discharging kitchen wastewater installed on the bottom face so that it can be opened and closed. Equipped with an oil-water separation device having a water discharge part for discharging a phase to the outside of the sink and a fat and oil discharge part for discharging the oil phase to the outside of the sink. It has a water discharge port for draining the water phase that overflows when the water level is exceeded, and a drain pipe for discharging the waste water to the outside of the sink. is provided and attached to the drain port of the grease trap portion, and the drain port is provided with an opening/closing portion, and by opening the opening/closing portion, the fat that has flowed from the fat separation phase into the fat inflow port is discharged. Therefore , the fat and oil phases separated by the grease trap portion can be discharged. Therefore, according to the sink of the present invention, fats and oils separated from the kitchen drainage can be easily discharged.

1 is a plan view of a sink of one embodiment according to the present invention; FIG. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1; 2 is a right side view of the sink shown in FIG. 1; FIG. FIG. 2 is an enlarged cross-sectional view of the grease draining device of the sink shown in FIG. 1; 5(a) is a top view, FIG. 5(b) is a rear view, FIG. 5(c) is a left side view, and FIG. 5(d) is a front view. 5(e) is a right side view, and FIG. 5(f) is a bottom view. FIG. 5 is a perspective view for explaining a state in which an inner cylinder is taken out from the main body of the fats and oils discharging device shown in FIG. 4 ; It is a figure showing another example of the fats and oils discharging device, FIG. 7 (a) is a perspective view for explaining a state in which the connecting portion is removed from the main body of the fats and oils discharging device, FIG. Fig. 3 is a cross-sectional view showing a state in which the main body of the grease discharging device is inserted into and fitted to the connecting portion; FIG. 8(a) is a perspective view for explaining a state in which a water drain pipe is removed from the connection portion of the oil and fat discharge device shown in FIG. 7, and FIG. and FIG. 10 is a cross-sectional view showing a state in which they are fitted together.

Hereinafter, the sink of the present invention will be described in detail with reference to the drawings.
[First embodiment]
FIG. 1 is a plan view of a sink of one embodiment according to the present invention. FIG. 2 is a sectional view taken along line II-II of FIG. 3 is a right side view of the sink shown in FIG. 1. FIG.
The sink 10 of this embodiment shown in FIGS. 1 to 3 includes a sink portion 20 and an oil-water separation device 30 arranged below the sink portion 20 . As shown in FIGS. 1 to 3, in the sink 10 of the present embodiment, the sink portion 20 and the oil-water separation device 30 overlap each other in plan view. Therefore, the sink 10 of the present embodiment can be installed in a smaller planar space than when the sink portion and the oil-water separator do not overlap each other in plan view.

The oil-water separator 30 treats the kitchen waste water 1 supplied from the sink 20 and containing kitchen waste, fats and oils, and water. The sink 10 shown in FIGS. 1 to 3 shows a state in which the grease trap portion 34 of the oil-water separator 30 is filled with the kitchen waste water 1 supplied from the sink portion 20 .

A sink 10 of the present embodiment shown in FIGS. 1 to 3 has a top plate 11 and a back guard 12 on the top, and a decorative plate 13 on the side. A footrest 15 for supporting the sink 10 is provided below the sink 10 , and a reinforcing member 14 is installed on a part of the footrest 15 . Since the sink 10 of the present embodiment has the pedestal 15 at its lower portion, it is possible to easily discharge and/or collect wastewater from the drain port 40 and the U-shaped pipe 39, which will be described later.

The sink part 20 is a water tank for receiving kitchen waste water 1 and has a substantially rectangular planar shape. The bottom surface of the sink portion 20 has a gradient that gradually decreases toward a sink drain port 21 for discharging the kitchen waste water 1. - 特許庁Further, as shown in FIGS. 1 and 2, handles 22, 22 are attached to the upper end portions of the opposing inner wall surfaces of the sink portion 20 so as to be embedded therein. In the sink 10, the sink portion 20 and the oil-water separation device 30 can be separated by pulling out and lifting the handle 22. - 特許庁Also, as shown in FIGS. 1 and 2 , the sink portion 20 includes a drain plug 23 for closing the sink drain 21 .

The oil-water separator 30 has a grease trap portion 34, a drain port 40, an opening/closing means 40a (cock), a fat and oil discharge device 45, and a water discharge device 36, as shown in FIG.
The grease trap portion 34 has a generally rectangular parallelepiped overall shape with an open top. The grease trap part 34 stores the kitchen waste water 1 that has flowed into the grease trap part 34, separates the kitchen waste water 1 into the oil phase 4 and the water phase 5 according to the difference in specific gravity, and precipitates the kitchen waste 6. . Specifically, in the grease trap portion 34, a fat and oil phase 4 in which fat and oil components with a small specific gravity are aggregated, and an aqueous phase 5 mainly composed of water with a higher specific gravity than the fat and oil phase 4 are formed. Garbage 6 accumulates at the bottom of the aqueous phase 5 .
As shown in FIG. 2, the grease trap portion 34 has a flat bottom surface. Note that the bottom surface of the grease trap portion may not be flat, and may have, for example, a slope that gradually decreases toward the drain port.

As shown in FIG. 2 , the grease trap section 34 includes a basket 32 , a basket support section 33 that detachably supports the basket 32 , and a partition plate 35 .
The basket 32 has an overall shape of a substantially rectangular parallelepiped with an open top. The planar shape of the basket 32 is smaller than the planar shape of the grease trap portion 34 . The basket 32 is installed within the grease trap portion 34 . The kitchen waste water 1 is supplied from the sink portion 20 to the basket 32 . The basket 32 is a porous body having a large number of drainage holes, and separates and collects garbage 2 larger than the drainage holes from the kitchen waste water 1 . As a material for the basket 32, a wire mesh, a punching metal plate, an expanded metal plate, or the like can be used.

The bottom surface of the basket 32 is positioned above the bottom surface of the grease trap portion 34 by being supported by the basket support portion 33 . In this embodiment, the water surface in the grease trap portion 34 (the height of the opening 38a of the drain pipe 38 described later) is positioned below the upper edge of the basket 32 and above the bottom surface of the basket 32. There is This prevents the garbage 2 larger than the drainage hole of the basket 32 from leaking out of the basket 32. - 特許庁

The partition plate 35 has a function of adjusting the outflow direction of the liquid 3 so that the liquid 3 that has passed through the basket 32 flows upward between the partition plate 35 and the basket support portion 33 . By causing the liquid 3 to flow upward by the partition plate 35, the separation of oil and water in the liquid 3 is promoted. That is, the fat and oil in the liquid 3 with a relatively low specific gravity quickly move upward, while the water content in the liquid 3 with a relatively high specific gravity moves downward.

The drain port 40 is installed on the bottom surface of the grease trap portion 34 so as to be openable and closable, and discharges the kitchen wastewater 1 in the grease trap portion 34 .
The opening/closing means 40 a opens and closes the drain port 40 . The opening/closing means 40 a can be operated from the bottom of the sink 10 .

The water discharge device 36 discharges the aqueous phase 5 separated by the grease trap section 34 .
The water discharge device 36 is arranged to extend vertically in the grease trap portion 34, and is a substantially cylindrical drain pipe communicating with a water discharge port (not shown) for discharging the water phase 5 in the grease trap portion 34. 38 and a baffle 37 covering the top of the drain pipe 38 .
The drainage pipe 38 determines the storage limit water level of the grease trap portion 34 depending on the installation position of the opening 38a provided on the upper edge. The sink 10 shown in FIGS. 1 to 3 is in a state in which the grease trap portion 34 is filled with kitchen waste water 1 . Therefore, the height of the water surface in the grease trap portion 34 is the storage limit water level, which is the height of the opening 38 a of the drain pipe 38 .

The water discharge device 36 is supplied with the kitchen waste water 1 exceeding the storage limit water level of the grease trap portion 34, and discharges the water phase 5 corresponding to the overflowing capacity. Therefore, in the present embodiment, when the kitchen wastewater 1 exceeding the storage limit water level is supplied, the oil and fat separated phase 4 separated by the grease trap section 34 gradually increases in thickness downward from the storage limit water level as the upper end. Increase.

The baffle 37 is a cylindrical member having an air hole (not shown) in its upper portion (for example, upper surface 37b). The upper surface 37b of the baffle 37 is exposed from the upper surface of the kitchen drainage 1 in the grease trap portion 34, as shown in FIG. Further, as shown in FIG. 2, the lower end 37a of the baffle 37 is below the opening 38a of the drain pipe 38, and the height of the water phase 5 separated by the grease trap portion 34 (for example, the height of the partition plate 35 (approximately the upper end position). Therefore, the water phase 5 flows into the drain pipe 38 from the opening 38 a through the space between the lower end 37 a of the baffle 37 and the outer surface of the drain pipe 38 arranged inside the baffle 37 . It is difficult for the fat and oil phase 4 with a small specific gravity to exist in the vicinity of the lower end 37 a of the baffle 37 . Therefore, from the lower end 37a of the baffle 37, the water phase 5 having a large specific gravity is taken in predominantly.

A U-shaped pipe 39 (trap) is connected to the lower end of the drain pipe 38 . The water phase 5 taken into the drain pipe 38 from the lower end 37a of the baffle 37 is discharged through a U-shaped pipe 39 from a water drain port (not shown) to the sewage pipe. By discharging the water phase 5 through the U-shaped pipe 39, the entry of offensive odors from the sewage pipe into the oil-water separator 30 is suppressed.

Next, the grease discharge device 45 of the sink 10 shown in FIGS. 1 to 3 will be described in detail.
FIG. 4 is an enlarged cross-sectional view of the grease discharger 45 of the sink 10 shown in FIGS. 1-3. 5A and 5B are diagrams showing the oil and fat component discharge device 45 shown in FIG. 4, FIG. 5A being a top view, FIG. 5B being a rear view, FIG. (d) is a front view, FIG. 5(e) is a right side view, and FIG. 5(f) is a bottom view.

The oil-and-fat component discharge device 45 shown in FIG. 4 discharges the oil-and-fat separated phase 4 separated by the grease trap portion 34 shown in FIG. The fats and oils discharge device 45 has a main body 46 and an inner cylinder 46 a inserted into the main body 46 . FIG. 6 is a perspective view for explaining a state in which the inner cylinder 46a is removed from the main body 46 of the oil and fat discharging device 45 shown in FIG.
A main body 46 of the fats and oils discharge device 45 extends vertically as shown in FIGS. 4 to 6 and has a substantially cylindrical shape communicating with the drain port 40 shown in FIG.

As shown in FIGS. 4 to 6, the lower portion of the main body 46 is provided with a connecting portion 47 connected to the drain port 40 . The connecting portion 47 has a substantially cylindrical shape with a smaller diameter than the outer diameter of the main body 46 . The step due to the diameter difference between the connecting portion 47 and the main body 46 shown in FIG. As a result, the vertical position of the grease discharging device 45 within the grease trap portion 34 is fixed and positioned.

The outer surface of the connecting portion 47 is provided with a plurality of (two in FIGS. 4 and 5) grooves 47a to be fitted in the mounting portion of the drain port 40. As shown in FIG. A packing 47b is installed in each of the grooves 47a. As a result, the oil and fat discharge device 45 can be attached to and detached from the drain port 40, and watertightness between the main body 46 and the drain port 40 is ensured.

As shown in FIGS. 4 and 5, the side surface of the main body 46 is provided with a fat inlet 48 that opens at the height of the fat split phase 4 (see FIG. 2) in the grease trap portion 34 .
The fats and oils inlet 48 has at least one hole (see FIG. 4 consists of holes 43c). As shown in FIGS. 4 and 5(b) to 5(e), the holes 43a, 43c, and 43d are arranged at positions that do not overlap in plan view. The holes 43a, 43c, and 43d have the same upper edge positions and widths, and different lower edge positions, and thus different lengths in the vertical direction. Specifically, the length in the vertical direction increases in order of the holes 43a, 43c, and 43d (in other words, the area of the holes increases).

Here, the opening/closing function of the holes 43a, 43c, and 43d provided on the side surface of the main body 46 will be described. The inner cylinder 46 a is rotatable in the outer peripheral direction while being inserted into the main body 46 . As shown in FIGS. 4 and 6, the inner cylinder 46a is provided with two inner holes 44a and 44b which overlap each other in a plan view and are positioned at different positions in the vertical direction. The inner hole 44a provided in the upper part of the inner cylinder 46a has the same upper edge position and width as the holes 43a, 43c, and 43d provided in the side surface of the main body 46 when inserted into the main body 46. , the position of the lower edge is the same as that of the hole 43d having the longest length in the vertical direction. Therefore, the area of the inner hole 44a is the same as that of the hole 43d provided on the side surface of the main body 46. As shown in FIG.

In this embodiment, the area of the inner hole 44a provided in the upper portion of the inner cylinder 46a can be adjusted to the side surface of the main body 46 by inserting the inner cylinder 46a into the main body 46 and rotating the inner cylinder 46a in the outer peripheral direction. Any size may be used as long as the hole having the largest area (the hole 43d in the example shown in FIG. 4) of the plurality of holes 43a, 43c, and 43d provided can be opened entirely. Therefore, the area of the inner hole 44a shown in FIG. 4 may not be the same as the hole 43d provided on the side surface of the main body 46, and may be equal to or greater than the area of the hole 43d provided on the side surface of the main body 46.

The holes 43a, 43c, and 43d provided in the side surfaces of the main body 46 are opened and closed by rotating the inner cylinder 46a in the outer peripheral direction while the inner cylinder 46a is inserted into the main body 46. As shown in FIG.
Specifically, the holes 43a, 43c, and 43d are opened by being arranged so as to at least partially overlap with the inner hole 44a provided in the upper portion of the inner cylinder 46a. Moreover, the holes 43a, 43c, and 43d are closed by arranging them at positions that do not overlap with the inner hole 44a provided in the upper portion of the inner cylinder 46a.

In this embodiment, the holes 43a, 43c, and 43d are arranged at positions that do not overlap in plan view. Therefore, when the position of the side surface of the inner hole 44a in plan view and the position of the side surface of one hole selected from the holes 43a, 43c, and 43d are matched in plan view, the oil/seeds inlet 48 is formed by the holes 43a, 43c, and 43d. It consists of only one hole selected from 43c and 43d (hole 43d in the grease discharge device 45 shown in FIG. 4). In this case, the vertical length and area of the oil inlet 48 are determined by the vertical length and area of the holes 43a, 43c, 43d overlapping the inner hole 44a of the inner cylinder 46a. That is, the area of the oil inlet 48 is determined by the areas of the holes 43a, 43c, and 43d regardless of the area of the inner hole 44a.

The oil/fat inlet 48 is opened by overlapping at least one hole selected from the holes 43a, 43c, and 43d with at least a portion of the inner hole 44a. Therefore, when the inner cylinder 46a is inserted into the main body 46, the hole that overlaps at least a part of the inner hole 44a of the inner cylinder 46a may be only one selected from the holes 43a, 43c, and 43d. When at least a portion of the inner hole 44a overlaps two holes, it may be two holes selected from the holes 43a, 43c, and 43d. Further, when the inner hole 44a and only one hole selected from the holes 43a, 43c, and 43d overlap, the position of the side surface of the inner hole 44a and one hole selected from the holes 43a, 43c, and 43d in plan view may match, or may not match as long as a water inlet, which will be described later, is not formed.

4 to 6, a water inlet opening at the height of the water phase 5 (see FIG. 2) in the grease trap portion 34 can be provided. The water inlet is an openable and closable hole 43b provided in the lower part of the side surface of the main body 46. As shown in FIG. As shown in FIGS. 4 and 5(b) to 5(e), the hole 43b is arranged so as not to overlap the holes 43a, 43c, and 43d in plan view.

Here, the opening/closing function of the hole 43b provided on the side surface of the main body 46 will be described. The inner hole 44b provided in the lower part of the inner cylinder 46a shown in FIG. 6 has the same shape as the hole 43b provided in the side surface of the main body 46, and the position and width of the upper and lower edges are the same. The hole 43b provided in the side surface of the main body 46 is opened and closed by rotating the inner cylinder 46a in the outer peripheral direction while the inner cylinder 46a is inserted into the main body 46. As shown in FIG. Specifically, the hole 43b is opened by arranging it so as to overlap with the inner hole 44b provided in the lower part of the inner cylinder 46a, and is closed by being arranged at a position not overlapping with the inner hole 44b. .

In the present embodiment, the inner holes 44a and 44b provided in the upper and lower portions of the inner cylinder 46a are provided at overlapping positions in plan view, and the hole 43b provided in the lower portion of the side surface of the main body 46 is the same as the hole 43a. , 43c and 43d in plan view. Therefore, when the inner cylinder 46a is inserted into the main body 46, and the inner hole 44b and the hole 43b overlap each other (provided with a water inlet) with the side surfaces of the inner hole 44b and the hole 43b aligned in plan view, the hole 43a , 43c and 43d are closed by the wall surface of the inner cylinder 46a (the oil and fat inlet 48 is not formed).

The water inlet is opened by overlapping the hole 43b and at least part of the inner hole 44b. Therefore, the position of the inner hole 44b and the side surface of the hole 43b in plan view may be the same, or may not be the same as long as the oil/fat inlet 48 is not formed.

As shown in FIGS. 4 to 6, on the upper surface of the inner cylinder 46a, there is a knob portion 46b used when rotating the inner cylinder 46a inserted into the main body 46 in the outer peripheral direction with respect to the main body 46. is set up. The knob portion 46b has a top surface 46g that protrudes outward from the upper end of the inner cylinder 46a and covers the upper surface of the inner cylinder 46a in a disc shape, and a semicircular plate member 46f erected on the top surface 46g. . As shown in FIGS. 4 and 6, the top surface 46g is provided with a mark (an arrow in the example shown in FIG. 5A) indicating the center position of the inner holes 44a and 44b in the width direction in plan view. . Further, when the inner cylinder 46a is inserted into the main body 46, a flange 46c of the main body 46, which will be described later, abuts against the lower surface of the top surface 46g projecting outward from the upper end of the inner cylinder 46a. As a result, the vertical position of the inner cylinder 46a within the main body 46 is determined.

As shown in FIGS. 4 to 6, the upper end of the main body 46 is provided with a flange 46c that protrudes outward from the upper end of the main body 46. As shown in FIG. As shown in FIGS. 4 to 6, the outer circumference of the flange 46c is larger than the outer circumference of the top surface 46g forming the knob portion 46b of the inner cylinder 46a in plan view.

As shown in FIG. 5A, holes 43a, 43b, 43c, and 43d provided on the side surfaces of the main body 46 are formed at positions outside the top surface 46g in plan view on the upper surface of the flange 46c. It is preferable that an alignment mark (a linear mark in the example shown in FIG. 5A) indicating the center position in the width direction is provided. Furthermore, in the example shown in FIG. 5(a), to which of the holes 43a, 43b, 43c, and 43d each alignment mark corresponds is written outside each alignment mark. Specifically, the position of the hole 43a with the shortest length in the vertical direction is "small oil", the position of the hole 43d with the longest length in the vertical direction is "large oil", and the length in the vertical direction is the hole. The position of the hole 43c between 43a and the hole 43d is labeled "in oil", and the position of the hole 43b provided in the lower part of the main body 46 is labeled "drained".

As shown in FIGS. 4 and 6, the outer surface of the inner cylinder 46a is provided with a plurality of (four in FIGS. 4 and 6) grooves 46d at different vertical positions along the outer circumference of the inner cylinder 46a. ing. A packing 46e is installed in each groove 46d. This ensures watertightness between the main body 46 and the inner cylinder 46a.

It is preferable that the length of the main body 46 above the connecting portion 47 is longer than the water depth when the grease trap portion 34 is at the storage limit water level. In this case, the knob portion 46 b of the main body 46 is not arranged under the water surface of the grease trap portion 34 . Therefore, even if the inside of the grease trap portion 34 is filled with kitchen waste water 1, the position of the knob portion 46b can be easily visually recognized, and the inner cylinder 46a can be easily rotated by operating the knob portion 46b. Further, if the length of the main body 46 above the connecting portion 47 is longer than the water depth when the water level is at the storage limit water level, the oil inlet 48 is likely to be installed near the water surface of the grease trap portion 34. can be easily adjusted to the height of the oil phase 4. The oil inlet 48 only needs to be open at the height of the oil phase 4 in the grease trap portion 34 at the time when the oil inlet 48 starts to be discharged. The water surface in the grease trap portion 34 is preferably located near the upper edge of the grease trap portion 34 , and the water surface in the grease trap portion 34 may be located between the upper edge and the lower end of the oil inlet 48 .

"How to use the sink"
Next, an example of how to use the sink 10 of the present embodiment will be described.
In this embodiment, before starting to use the sink 10, the kitchen drainage 1 in the oil-water separator 30 is removed to empty the grease trap portion 34, and the drainage port 40 is closed by the opening/closing means 40a. Further, by lifting the handle 22, the sink portion 20 and the oil-water separator 30 are separated, and the connecting portion 47 of the oil-and-fat discharging device 45 shown in FIGS.

Next, for example, a hole 43 c provided in the side surface of the main body 46 of the grease discharge device 45 is opened to serve as the grease inlet 48 . Specifically, the inner cylinder 46a inserted into the main body 46 is rotated in the outer peripheral direction with respect to the main body 46 using the knob portion 46b. Then, as shown in FIG. 5(a), the position of the mark provided on the top surface 46g of the inner cylinder 46a is aligned with the position of the "in oil" positioning mark written on the top surface of the flange 46c. As a result, the hole 43c is opened, and the fats and oils inlet 48 is formed in the fat and oil discharge device 45. As shown in FIG.

In the present embodiment, the case where the hole 43c provided on the side surface of the main body 46 is opened to serve as the oil-and-fat inlet 48 will be described as an example. Which of the holes is to be opened to serve as the oil inlet 48 can be appropriately determined according to the thickness (amount) of the oil phase 4 and the like.

Specifically, when one of the holes 43a, 43c, and 43d provided on the side surface of the main body 46 of the oil and fat discharge device 45 is opened and used as the oil and fat inlet 48, it is inserted into the main body 46. The inner cylinder 46a is rotated in the outer peripheral direction with respect to the main body 46 using the knob portion 46b. Then, the position of the mark provided on the top surface 46g of the inner cylinder 46a is aligned with the position of the alignment mark selected from "small oil", "medium oil", and "large oil" written on the upper surface of the flange 46c. . As a result, one of the holes 43 a , 43 c , and 43 d is opened to form the oil inlet 48 in the oil discharge device 45 .

For example, when the thickness of the oil phase 4 is thin, the position of the mark provided on the top surface 46g of the inner cylinder 46a is aligned with the position of "small oil", and the hole 43a with the shortest length in the vertical direction is used to separate the oil and fat. It is preferably used as inlet 48 . As a result, the inflow of the water phase 5 from the fats and oils inlet 48 is suppressed, the highly concentrated fats and oils can be recovered from the kitchen wastewater 1, and the amount of waste disposed of as fats and oils can be suppressed.
In addition, when the thickness of the oil phase 4 is thick, the position of the mark provided on the top surface 46g of the inner cylinder 46a is aligned with the position of "large oil", and the hole 43d with the longest length in the vertical direction is used to separate the oil and fat. It is preferably used as inlet 48 . As a result, the fat and oil phase 4 stored in the grease trap portion 34 can be efficiently discharged.

In addition, when the thickness of the oil phase 4 is so thin that it is not necessary to align the position of the mark provided on the top surface 46g of the inner cylinder 46a with the position of "large oil", the position of the mark may be changed to "in oil". By using the hole 43c as the oil inlet 48 in accordance with the position of ", the flow rate of the oil separated phase 4 taken out through the drain port 40 is reduced compared to the case where the hole 43a is used as the oil inlet 48. As a result, the oil/fat separated phase 4 stored in the grease trap portion 34 can be efficiently discharged.
In addition, when the thickness of the oil and fat phase 4 is thick, the position of the mark provided on the top surface 46g of the inner cylinder 46a is aligned with the position of "in oil" and the hole 43c is used as the oil and fat inlet 48. Compared with the case where 43d is used as the fats and oils inlet 48, it is possible to recover fats and oils of higher concentration from the kitchen wastewater 1, and to reduce the amount of waste disposed of as fats and oils.

After that, the sink portion 20 and the oil-water separator 30 are fitted together.
When the sink 10 is started to be used in this state, as shown in FIG. The kitchen wastewater 1 includes, for example, kitchen waste (garbage) generated in restaurants and the like, oil and fat, and water.

The kitchen waste water 1 sent to the oil-water separator 30 is supplied to the basket 32 of the grease trap section 34 as shown in FIG. be recovered. The liquid 3 that has passed through the basket 32 is stored in the grease trap portion 34, and is separated into the oil phase 4 and the water phase 5 due to the difference in specific gravity. separated.

When the grease trap portion 34 is filled with the kitchen waste water 1 supplied from the sink portion 20, as shown in FIG. The overflowing volume of the water phase 5 passes between the lower end 37a of the baffle 37 of the water discharge device 36 and the outer surface of the drain pipe 38, flows into the drain pipe 38 from the opening 38a, and is discharged to the sewage pipe. .

Next, the drain port 40 is opened by the opening/closing means 40a. As a result, the oil phase 4 in the grease trap portion 34 flows into the main body 46 from the oil inlet 48 of the oil discharge device 45, passes through the inner cylinder 46a, and is taken out from the drain port 40. be The extracted oil phase 4 is collected and disposed of as waste.
In addition, when the viscosity of the oil and fat phase 4 increases due to a decrease in temperature, etc., and it is difficult to discharge the oil and fat phase 4, the viscosity of the oil and fat phase 4 is lowered, and then the oil and fat phase 4 is discharged. good too. As a method for lowering the viscosity of the fat and oil phase 4, for example, hot water is supplied from the sink portion 20 to the grease top portion 34 through the sink drain port 21 to raise the temperature of the fat and oil phase 4.
After the oil phase 4 is completely discharged from the drain port 40, the drain port 40 is closed again by the opening/closing means 40a.

"How to clean the sink"
Next, a method for cleaning the grease trap portion 34 of the sink 10 will be described.
The cleaning of the grease trap portion 34 is preferably performed after the oil/fat separated phase 4 is taken out by opening and closing the opening/closing means 40a. As a result, cleaning of the grease trap portion 34 can be started in a state in which the oil phase 4 in the grease trap portion 34 has been removed, thereby facilitating the cleaning work.

Next, the sink part 20 and the oil-water separator 30 are separated by lifting the handle 22 .
Subsequently, the water phase 5 is discharged by the method shown below using the fats and oils discharging device 45 . As a result, the water level in the grease trap portion 34 becomes sufficiently lower than the storage limit water level, and the cleaning work of the grease trap portion 34 becomes easy.

To discharge the water phase 5 using the fats and oils discharging device 45, first, the hole 43b provided on the side surface of the main body 46 of the fats and oils discharging device 45 is opened and used as a water inlet. Specifically, the inner cylinder 46a inserted into the main body 46 is rotated in the outer peripheral direction with respect to the main body 46 using the knob portion 46b. Then, the position of the mark provided on the top surface 46g of the inner cylinder 46a is aligned with the position of the alignment mark for "drainage" written on the top surface of the flange 46c. As a result, the hole 43b is opened and becomes a water inlet.

After that, the drain port 40 is opened by the opening/closing means 40a. As a result, the water phase 5 flows in through the water inlet, then passes through the inner cylinder 46a and is discharged outside through the drain port 40. As shown in FIG.
After the water phase 5 is completely discharged from the drain port 40, the drain port 40 is closed again by the opening/closing means 40a.
The aqueous phase 5 taken out of the sink 10 through the drain port 40 may be collected and disposed of as waste, or may be supplied to a sewage pipe via a pipe (not shown) or the like. By supplying the water phase 5 extracted to the outside of the sink 10 from the drain port 40 to the sewage pipe, the amount of waste can be suppressed.

Subsequently, the garbage 2 collected by the basket 32 is taken out. By discharging the aqueous phase 5 using the fat and oil component discharge device 45, the kitchen waste 2 collected by the basket 32 is separated from the kitchen waste water 1 and drained. Therefore, the weight of the garbage 2 to be collected is reduced, and the garbage 2 can be easily taken out.
It should be noted that the work of taking out the garbage 2 collected in the basket 32 is preferably performed after the water phase 5 is discharged using the oil and fat discharge device 45, but the sink part 20 and the oil-water separator 30 are separated. It can be carried out as appropriate when it is in the state, and it may be carried out before discharging the water phase 5 using the fats and oils discharge device 45 .

Next, the fat and oil discharge device 45 is removed, the drain port 40 is opened by the opening/closing means 40a, and the garbage 6 deposited on the bottom of the grease trap portion 34 is taken out to the outside. As a result, the inside of the grease trap portion 34 becomes empty.
After that, the inside of the grease trap portion 34 is cleaned.

The sink 10 of the present embodiment includes a sink portion 20 and an oil-water separation device 30 for treating the kitchen wastewater 1 containing kitchen waste, oil, and water supplied from the sink portion 20 . In this embodiment, the oil-water separator 30 separates the kitchen wastewater 1 into the oil and fat phase 4 and the water phase 5 due to the difference in specific gravity, and the grease trap portion 34 that precipitates the kitchen waste 6, and the bottom surface of the grease trap portion 34. It has a drain port 40 for draining the kitchen waste water 1 in the grease trap portion 34, an opening/closing means 40a for opening and closing the drain port 40, and a fat and oil component discharge device 45 for draining the fat and oil phase 4. The oil and fat discharge device 45 includes a cylindrical main body 46 extending in the vertical direction and communicating with the drain port 40, a connecting portion 47 provided at the bottom of the main body 46 and connected to the drain port 40, and a main body. 46 and has an oil inlet 48 that opens at the height of the oil phase 4 in the grease trap portion 34 . Therefore, by opening the drain port 40 by the opening/closing means 40a, the fat phase 4 flows into the main body 46 from the fat inlet 48 of the fat drain device 45 in the grease trap portion 34, and is taken out from the drain port 40. be Therefore, according to the sink 10 of this embodiment, the fats and oils separated from the kitchen wastewater 1 can be easily discharged.

In the sink 10 of the present embodiment, a plurality of openable and closable holes 43a, 43c, and 43d having different lengths in the vertical direction are provided on the side surface of the main body 46 as the grease discharge device 45, and the grease inlet 48 is formed by the plurality of holes 43a. , 43c and 43d (hole 43c in this embodiment). Therefore, which of the holes 43a, 43c, and 43d is to be opened to serve as the oil inlet 48 can be appropriately determined according to the thickness of the oil phase 4 and the like.

The sink 10 of the present embodiment includes a cylindrical drainage pipe 38 that extends vertically in the grease trap portion 34 and communicates with a water drainage port that discharges the water phase 5 in the grease trap portion 34, The lower end 37a of the baffle 37 is arranged at the height of the water phase 5, and the inside 38 of the drain pipe 38 passes between the lower end 37a of the baffle 37 and the outer surface of the drain pipe 38. It has a water discharge device 36 into which the water phase 5 flows. It is difficult for the fat and oil phase 4 to exist in the vicinity of the lower end 37a of the baffle 37 because of its low specific gravity. Therefore, in the water discharge device 36, the water phase 5 having a large specific gravity is predominantly taken in from the lower end 37a of the baffle 37, and the water phase 5 containing less oil and fat can be selectively discharged from the grease trap portion 34.

[Second embodiment]
The sink of the second embodiment differs from the sink of the above-described first embodiment only in the fat and oil discharge device. Therefore, in the second embodiment, the same reference numerals are given to the members common to the first embodiment, and the description thereof is omitted, and only the differences will be described.
7A and 7B are diagrams showing another example of the fat and oil discharging device, and FIG. 7A is a perspective view for explaining a state in which the connecting portion is removed from the main body of the fat and oil discharging device, and FIG. (b) is a cross-sectional view showing a state in which the main body of the grease discharging device is inserted into and fitted to the connecting portion.
A fat and oil component discharge device 55 shown in FIGS. 7( a ) and 7 ( b ) discharges the fat and oil phase 4 separated by the grease trap portion 34 . The fats and oils discharge device 55 is detachable, and has a main body 56 and a connecting portion 57 provided at the lower portion of the main body 56 and connected to the drain port 40 . The connecting portion 57 is detachably provided on the main body 56 .

The main body 56 has a substantially cylindrical shape that extends vertically and communicates with the drain port 40 . The connecting portion 57 can be detachably connected to the main body 56 and the drain port 40 . As shown in FIGS. 7(a) and 7(b), the joint portion 57 has a substantially cylindrical main body fitting portion 57d having a diameter larger than the outer diameter of the main body 56, and a substantially cylindrical main body fitting portion 57d. and a substantially cylindrical drainage port fitting portion 57e having a small diameter.
The connection portion 57 is integrated with the main body 56 by inserting and fitting the main body 56 into the main body fitting portion 57d. Further, by inserting and fitting the drain port fitting portion 57e of the connecting portion 57 integrated with the main body 56 into the drain port 40, the watertightness between the main body 56 and the drain port 40 is ensured. ing.

As shown in FIG. 7(b), a flange 57c projecting outward is provided on the outer surface of the boundary between the body fitting portion 57d and the drain port fitting portion 57e. The flange 57c abuts the drain port 40 when the drain port fitting portion 57e is inserted into the drain port 40 . As a result, the vertical position of the grease discharging device 55 within the grease trap portion 34 is fixed and positioned.

As shown in FIGS. 7(a) and 7(b), the side surface of the main body 56 has two oil inlets 58 that open at the height of the oil phase 4 (see FIG. 2) in the grease trap portion 34. is provided. The two oil/fat inlets 58 are arranged to face each other across the central axis of the cylindrical body 56 .
Further, as shown in FIGS. 7(a) and 7(b), the upper end of the main body 56 is open.

The length of the main body 56 (the length above the flange 57c of the grease discharging device 55) is preferably longer than the water depth when the grease trap portion 34 is at the storage limit water level. In this case, the oil inlet 58 can be easily installed in the vicinity of the water surface of the grease trap portion 34 , so that the position of the oil inlet 58 can be easily adjusted to the height of the oil phase 4 .

The length from the upper end of the connecting portion 57 to the upper end of the main body 56 and the height of the grease inlet 58 in the grease trap portion 34 are determined by fitting the main body 56 into the main body fitting portion 57d of the connecting portion 57. It can be adjusted by appropriately changing the length of the main body 56 exposed from the portion 57d.
In this embodiment, it is preferable that one or a plurality of adjustment grooves 59 are provided on the side surface of the main body 56 as a guide for the depth of insertion of the main body 56 into the main body fitting portion 57 d of the connecting portion 57 . In the example shown in FIG. 7A, three adjustment grooves 59 are provided on the side surface of the main body 56 at regular intervals. Each adjustment groove 59 is formed along the outer periphery of the main body 56, as shown in FIG. 7(a). In this embodiment, when the lower end of the main body 56 inserted into the main body fitting portion 57d is abutted against the upper end of the drain port fitting portion 57e (see FIG. 7B), three The position of the upper adjustment groove among the adjustment grooves 59 coincides with the upper end of the body fitting portion 57d.

In this embodiment, for example, of the three adjustment grooves 59, only the lower adjustment groove is covered with the main body fitting portion 57d, and two of the upper adjustment groove and the adjustment groove provided below are covered with the main body fitting portion. The main body 56 may be shallowly inserted into the main body fitting portion 57d so as to be exposed from the portion 57d. As a result, when the lower adjustment groove and the upper adjustment groove are covered with the body fitting portion 57d, and when the position of the upper adjustment groove coincides with the upper end of the body fitting portion 57d. , the length from the upper end of the connecting portion 57 to the upper end of the main body 56 is longer, and the position of the oil inlet 58 in the grease trap portion 34 is higher.

Note that the plurality of adjustment grooves 59 provided on the side surface of the main body 56 may serve as a guideline for the depth of insertion of the main body 56 into the main body fitting portion 57d. Also, the width and the interval between the adjustment grooves 59 are not particularly limited. Also, instead of the plurality of adjustment grooves 59 provided on the side surface of the main body 56, one or more lines may be drawn along the outer periphery of the main body 56. FIG.

The grease drain device 55 of the sink of the second embodiment has drain pipes shown in FIGS. 8(a) and 8(b). FIG. 8(a) is a perspective view for explaining a state in which a water drain pipe is removed from the connection portion of the oil and fat discharge device shown in FIG. 7, and FIG. and FIG. 10 is a cross-sectional view showing a state in which they are fitted together.

The drain pipe 65 shown in FIGS. 8( a ) and 8 ( b ) is attachable/detachable to/from the connecting portion 57 of the oil/fat draining device 55 . The drain pipe 65 has a substantially cylindrical shape having the same outer diameter and inner diameter as the main body 56 of the grease draining device 55 . Two drain holes 68 are provided on the side surface of the drain pipe 65 . The two drain holes 68 are for draining the water phase 5 in the grease trap portion 34 and are arranged facing each other across the central axis of the cylindrical drain pipe 65 . The positions of the two drain holes 68 on the side surface of the drain pipe 65 are such that the drain pipe 65 is inserted into the connector 57 and is covered with the connector 57 .

That is, the water drain pipe 65 has the same shape as the body 56 of the oil and fat discharge device 55 except for the position and shape of the holes (oil inlet 58 in the oil and fat discharge device 55 and water drain hole 68 in the water drain pipe 65). have.
Therefore, the drain pipe 65 can be installed by inserting and fitting the drain pipe 65 into the connection portion 57 in the same manner as the main body 56 of the oil and fat discharge device 55 .

The drain pipe 65 is transparent or translucent, and preferably has a cap 63 capable of sealing the upper surface of the drain pipe 65 as shown in FIGS. 8(a) and 8(b). When such a drain pipe 65 is provided, the thickness of the oil phase 4 in the grease trap portion 34 and the position of the boundary between the oil phase 4 and the water phase 5 can be confirmed by a method described later.
The cap 63 is attachable to and detachable from the drain pipe 65, and as shown in FIGS. and an upper surface covering the upper end of the shaped body. By covering the upper surface of the drain pipe 65 with the cap 63, the upper surface of the drain pipe 65 can be sealed.

The cap of the drain pipe is not limited to the cap 63 shown in FIGS. 8(a) and 8(b), and can be changed in design as appropriate. For example, the top surface of the cap may be provided with an aperture having a diameter that can be closed with a finger. When such a cap is provided, the upper surface of the drain pipe can be sealed by covering the upper surface of the drain pipe with the cap and closing the opening of the cap with a finger or the like.

In this embodiment, the upper surface 37b of the baffle 37 of the water discharge device 36 is exposed from the upper surface of the kitchen drainage 1 in the grease trap portion 34, and the upper surface 37b of the baffle 37 includes the oil and fat discharge device 55 and the water drain. It is preferable that a display indicating the installation position of the pipe 65 is provided.

"How to use the sink"
Next, an example of how to use the sink of the second embodiment will be described.
In the present embodiment, as in the first embodiment, before starting to use the sink, the kitchen drainage 1 in the oil-water separator 30 is removed to empty the grease trap portion 34, and the drainage port 40 is opened by opening/closing means. Close by 40a. Moreover, the sink part 20 and the oil-water separator 30 are separated by lifting the handle 22 . After that, in this embodiment, unlike the first embodiment, the connection portion 57 of the fats and oils discharge device 55 shown in FIG. 7 is connected to the drain port 40 . The connecting portion 57 is connected to the drain port 40 in a state separated from the main body 56 of the grease discharging device 55 .

Then, the sink part 20 and the oil-water separator 30 are joined.
When the sink 10 is started to be used in this state, as shown in FIG.

The kitchen waste water 1 sent to the oil-water separator 30 is supplied to the basket 32 of the grease trap section 34, and passes through the basket 32 to collect the kitchen waste 2 larger than the drain hole of the basket 32. - 特許庁The liquid 3 that has passed through the basket 32 is stored in the grease trap portion 34, and is separated into the oil phase 4 and the water phase 5 due to the difference in specific gravity. separated.

When the grease trap portion 34 is filled with the kitchen waste water 1 supplied from the sink portion 20, every time the kitchen waste water 1 exceeding the storage limit water level of the grease trap portion 34 is supplied, the overflow capacity of the water phase is reached. 5 passes between the lower end 37a of the baffle 37 of the water discharge device 36 and the outer surface of the drain pipe 38, flows into the drain pipe 38, and is discharged to the outside of the sink 10.

Next, the sink part 20 and the oil-water separator 30 are separated by lifting the handle 22 . Then, the drain pipe shown in FIGS. 8( a ) and 8 ( b ) is installed in the body fitting portion 57 d of the connecting portion 57 connected to the drain port 40 .
In this embodiment, if the upper surface 37b of the baffle 37 is provided with a display indicating the installation positions of the oil and fat discharge device 55 and the drain pipe 65, the grease trap portion 34 is filled with the kitchen drainage 1. Even if there is, by referring to the display on the upper surface 37b of the baffle 37, the drain pipe 65 can be easily installed.

Next, as shown in FIG. 8(b), a cap 63 is put on the drain pipe 65 so as to cover the upper surface of the drain pipe 65, and the inside of the drain pipe 65 is sealed. After that, the drain pipe 65 is removed from the connecting portion 57 while maintaining the sealed state. The thickness of the oil phase 4 in the grease trap portion 34 and the state of the boundary between the oil phase 4 and the water phase 5 are maintained above the water drain hole 68 in the removed water drain pipe 65 . Therefore, by observing the inside of the drain pipe 65 that has been removed, the thickness of the oil/fat separated phase 4 in the grease trap portion 34 and the position of the boundary between the oil/fat separated phase 4 and the water phase 5 can be confirmed.

When the inside of the removed drain pipe 65 is observed and it is determined that it is not necessary to discharge the oil phase 4 at this time, the sink part 20 and the oil-water separator 30 are joined, and the use of the sink 10 is resumed.
Whether or not the oil and fat phase 4 needs to be discharged can be determined as appropriate according to the size of the grease trap portion 34, for example, the thickness of the oil and fat phase 4 in the grease trap portion 34 is determined in advance. It can be determined by whether the dimension is exceeded or not.

When it is determined that it is necessary to discharge the oil phase 4 at this time by observing the inside of the removed drain pipe 65, the oil drain device 55 is attached to the body fitting portion 57d of the connection portion 57 from which the drain pipe 65 has been removed. body 56 is inserted and fitted. As a result, the main body 56 and the connecting portion 57 are integrated, and the fats and oils discharge device 55 is installed.
In this embodiment, if the upper surface 37b of the baffle 37 is provided with a display indicating the installation positions of the oil and fat discharge device 55 and the drain pipe 65, the grease trap portion 34 is filled with the kitchen drainage 1. Even if there is, by referring to the display on the upper surface 37b of the baffle 37, the grease discharge device 55 can be easily installed.

Next, the drain port 40 is opened by the opening/closing means 40a. As a result, the oil phase 4 in the grease trap portion 34 flows into the main body 56 from the oil inlet 58 of the oil discharge device 55 and is taken out from the drain port 40 .
After the oil phase 4 is completely discharged from the drain port 40, the drain port 40 is closed again by the opening/closing means 40a.

"How to clean the sink"
Next, a method for cleaning the grease trap portion 34 of the sink will be described.
The cleaning of the grease trap portion 34 is preferably performed after the oil/fat separated phase 4 is taken out by installing the oil/fat discharging device 55 and opening/closing the opening/closing means 40a. As a result, cleaning of the grease trap portion 34 can be started in a state in which the oil phase 4 in the grease trap portion 34 has been removed, thereby facilitating the cleaning work.

Subsequently, the main body 56 of the fats and oils discharging device 55 is removed from the main body fitting portion 57d of the connecting portion 57 and separated. Then, instead of the main body 56, a drainage pipe shown in FIGS. 8(a) and 8(b) is installed.
Next, as shown in FIG. 8(b), a cap 63 is put on the drain pipe 65 so as to cover the upper surface of the drain pipe 65, and the inside of the drain pipe 65 is sealed. After that, the drain pipe 65 is removed from the connecting portion 57 while maintaining the sealed state.

After that, the inside of the removed water drain pipe 65 is observed, and when it is determined that the oil phase 4 needs to be discharged at this time, the main body 56 is connected to the main body fitting portion 57d of the connection portion 57 from which the water drain pipe 65 has been removed. Install. Then, the drain port 40 is opened/closed again by the opening/closing means 40a, and the oil/fat separated phase 4 in the grease trap portion 34 is taken out.
Whether or not the oil/fat separated phase 4 needs to be discharged can be determined by, for example, whether or not the thickness of the oil/fat separated phase 4 in the grease trap portion 34 exceeds a predetermined dimension.

When the inside of the removed water drain pipe 65 is observed and it is determined that it is not necessary to discharge the oil phase 4 at this time, the water drain pipe 65 is installed in the main fitting portion 57 d of the connection portion 57 .
At this time, the drain pipe 65 is shallowly inserted into the body fitting portion 57d so that part or all of the drain hole 68 of the water drain pipe 65 is positioned above the upper end of the body fitting portion 57d. As a result, part or all of the drain hole 68 of the drain pipe 65 is exposed from the connecting portion 57 and opened.
Next, the drain port 40 is opened by the opening/closing means 40a to allow the water phase 5 to flow into the drain pipe 65 through the drain hole 68 and to be discharged to the outside through the drain port 40. FIG. As a result, the water level in the grease trap portion 34 becomes sufficiently lower than the storage limit water level, and the cleaning work of the grease trap portion 34 becomes easy.
After the water phase 5 is completely discharged from the drain port 40, the drain port 40 is closed again by the opening/closing means 40a.

Subsequently, the garbage 2 collected by the basket 32 is taken out. By discharging the aqueous phase 5 using the drain pipe 65, the kitchen waste 2 collected by the basket 32 is separated from the kitchen waste water 1 and drained. Therefore, the weight of the garbage 2 to be collected is reduced, and the garbage 2 can be easily taken out.
It should be noted that the work of taking out the garbage 2 collected in the basket 32 is preferably performed after the water phase 5 is discharged using the drain pipe 65, but the discharge sink part 20 and the oil-water separator 30 are separated. This can be done as appropriate when it is in the state, and it may be done before discharging the water phase 5 using the drain pipe 65 .

Next, the drainage pipe 65 and the connecting portion 57 are removed, the drain port 40 is opened by the opening/closing means 40a, and the garbage 6 deposited on the bottom of the grease trap portion 34 is taken out to the outside. As a result, the inside of the grease trap portion 34 becomes empty.
After that, the inside of the grease trap portion 34 is cleaned.

In the sink of this embodiment, the sink part 20 and the oil-water separator 30 are separated by lifting the handle 22, the main body 56 of the oil-and-fat discharge device 55 is installed, and the drain port 40 is opened by the opening/closing means 40a. The oil/fat separated phase 4 flows into the main body 56 from the oil/fat inlet 58 of the oil/fat discharge device 55 and is taken out from the drain port 40 . Therefore, according to the sink of this embodiment, the fats and oils separated from the kitchen wastewater 1 can be easily discharged.

In the sink of the present embodiment, the oil and fat discharge device 55 is detachable, and the upper surface 37b of the baffle 37 is provided with a display indicating the installation position of the oil and fat discharge device 55. 1, the grease discharge device 55 can be easily installed by referring to the display on the upper surface 37b of the baffle 37. FIG.

Although embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. The present invention can be embodied in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. Further, the embodiments include, for example, those that can be easily imagined by a person skilled in the art, those that are substantially the same, those that fall within an equivalent range, and the like.

For example, the method of using the sink of the second embodiment is not limited to the method of use described above, and may be used in the following manner.
"How to use the sink"
As in the above usage method, before starting to use the sink, the kitchen drainage 1 in the oil-water separator 30 is removed to empty the grease trap portion 34, and the drainage port 40 is closed by the opening/closing means 40a. Also, by lifting the handle 22 , the sink portion 20 and the oil-water separation device 30 are separated, and the connection portion 57 of the oil-and-fat discharge device 55 is connected to the drain port 40 . At this time, unlike the method of use described above, the connecting portion 57 is connected to the drain port 40 in a state of being integrated with the main body 56 of the oil and fat discharge device 55 .

After that, for example, in the same manner as the above-described usage method, the grease trap portion 34 is filled with the kitchen waste water 1 supplied from the sink portion 20, and the kitchen waste water 1 exceeding the storage limit water level of the grease trap portion 34 is reached. Each time is supplied, the overflow volume of the aqueous phase 5 is discharged into the sewer.

Next, the drain port 40 is opened by the opening/closing means 40a. As a result, the oil phase 4 flows into the main body 56 from the oil inlet 58 of the oil discharge device 55 and is discharged to the outside through the drain port 40 .
After the oil phase 4 is completely discharged from the drain port 40, the drain port 40 is closed again by the opening/closing means 40a.

When the sink of the second embodiment is used in this way, similarly to the first embodiment, by opening the drain port 40 with the opening/closing means 40a, the grease inlet of the grease drain device 55 in the grease trap portion 34 is opened. The oil phase 4 flows into the main body 56 from 58 and is taken out from the drain port 40 . Therefore, fats and oils separated from the kitchen wastewater 1 can be easily discharged.

Further, in the sink of the above-described embodiment, the case where the sink portion 20 and the oil-water separation device 30 overlap each other in plan view has been described as an example, but the sink portion and the oil-water separation device are separated in plan view It may be provided, or the sink portion and the oil-water separator may partially overlap each other in a plan view. When the sink part and the oil-water separator are provided separately in plan view, or when the sink part and the oil-water separator partly overlap in plan view, and the sink part is installed above the drain port of the oil-water separator. If not, the attachment/detachment operation of the oil/fat discharging device can be performed without separating the sink portion and the oil/water separating device. Therefore, the fats and oils separated from the kitchen waste water can be discharged more easily.

1 kitchen wastewater 2 kitchen waste 3 liquid 4 oil phase 5 aqueous phase 6 kitchen waste 10 sink 11 top plate 12 back guard 13 veneer 14 reinforcing material 15 footrest 20 sink part 21 sink drain port 22 handle 23 drain port plug 30 oil and water separator 32 basket 33 basket support part 34 grease trap part 35 partition plate 36 water discharge device 37 baffle 37a lower end 37b upper surface 38 drain pipe 38a opening 39 U-shaped pipe (trap)
40 Drain port 40a Opening and closing means 43a, 43c, 43d Holes 44a, 44b Inner hole 45 Grease discharge device 46 Body 46a Inner cylinder 46b Knob portion 46c Flange 46d Groove 46e Packing 46f Plate material 46g Top surface 47 Connecting portion 47a Groove 47b Packing 48 Grease Divider inlet 55 Grease discharge device 56 Body 57 Connection part 57c Flange 57d Body fitting part 57e Drainage port fitting part 58 Grease splitter inlet 63 Cap 65 Drainage pipe 68 Drainage hole

Claims (3)

A sink comprising a sink part and an oil-water separator for treating kitchen wastewater containing kitchen waste, fats and oils, and water supplied from the sink part,
The oil-water separator is
a grease trap part that separates the kitchen wastewater into an oil phase and a water phase based on the difference in specific gravity and sediments the kitchen waste;
a water discharge part for discharging the water phase out of the sink;
a fat and oil discharge unit for discharging the fat and oil phase to the outside of the sink ;
has
The water discharge part includes a water discharge port for discharging the water phase overflowing when the kitchen waste water in the grease trap part exceeds the storage limit water level, and a drain pipe for discharging the waste water to the outside of the sink. have
The grease discharge part has a substantially cylindrical shape, is provided with a grease inlet on the side surface, and is attached to the drain port of the grease trap part,
The sink is characterized in that the drain port is provided with an opening/closing portion, and by opening the opening/closing portion, the fats and oils that have flowed into the fats/oils inflow port from the fats/separate phases are discharged. The fat and oil discharge part has a main body and an inner cylinder inserted into the main body,
The body is
As the fats and oils inlet, at least a first fat and oil inlet and a second fat and oil inlet whose opening width in the height direction is narrower than that of the first fat and oil inlet,
The first fat component inlet and the second fat component inlet are provided at positions that do not overlap in plan view,
The inner cylinder is
Having a first opening corresponding to the first fats and oils inlet,
The inner cylinder is rotatable while being inserted into the main body,
By aligning the first opening with the first grease inlet, the grease that has flowed into the first grease inlet is discharged, and the position of the first opening is positioned at the second grease inlet. 2. The sink according to claim 1, wherein the oil and fat that have flowed into the second oil and fat inlet are discharged by combining the two . The body is
Having an inflow port below the fat and oil inflow port,
The inlet is provided at a position that does not overlap with the first fat inlet and the second fat inlet in a plan view,
The inner cylinder is
Having a second opening corresponding to the inlet,
3. The sink according to claim 2 , wherein by aligning the second opening with the inflow port, wastewater flowing into the inflow port from the aqueous phase is discharged.

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