JP7300084B2 - Drainage device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a drainage device, and more particularly to a drainage device provided at the bottom of a water receiving portion in a kitchen.

2. Description of the Related Art Conventionally, as shown in Patent Document 1, a drainage device provided on the bottom surface of a sink and equipped with an ultrasonic transmitter is known. In such a drainage device, the basic idea is to clean the entire drainage part by ultrasonic cleaning. is carried out and the dirt in the drain is cleaned.

Japanese Patent Application Laid-Open No. 2004-324108

However, the inventors of the present invention have conducted intensive research to realize ultrasonic cleaning in a drainage device. A new problem was discovered in that dirt that easily sticks and dirt that flows into the main unit after the start of ultrasonic cleaning tends to remain on the surface of the water and is difficult to remove from the main unit simply by performing ultrasonic cleaning.

Therefore, the present invention has been made to solve the above-described problems of the prior art, and it is possible to clean the vicinity of the sealing water level where dirt easily adheres by ultrasonic cleaning. To provide a drainage device capable of controlling a range in which dirt remains in a mesh basket storage part which can be easily cleaned by a user when part of the dirt which is difficult to remove remains in the main body part.

In order to solve the above-described problems, the present invention provides a drainage device provided at the bottom of a water receiving portion of a kitchen, which is provided downstream of the water receiving portion and has a mesh basket disposed inside. a main body comprising a cage housing portion and a water sealing forming portion provided downstream of the mesh cage housing portion and forming a water seal; applying ultrasonic waves to the mesh cage and water in the main body The oscillating ultrasonic oscillator and the water flowing into the main body section raise the water level in the main body section from the sealing water level in the sealing water forming section to the ultrasonic cleaning water level higher than the sealing water level in the sealing water forming section. The water level adjusting portion is formed so as to facilitate washing, wherein the water level adjusting portion is positioned so that the ultrasonic cleaning water level is positioned within the mesh basket housing portion and below the entrance portion of the mesh basket housing portion. It is characterized by comprising the above-mentioned water level adjustment part formed so as to do.
Unlike the conventional viewpoint of simply cleaning the entire main body by ultrasonic cleaning, the present inventors have proposed an ultrasonic cleaning area that is mainly cleaned by ultrasonic cleaning in the main body, and an ultrasonic cleaning area that is mainly used. A view point (technical idea) for separating the mesh basket storage section, which is a user cleaning area that facilitates cleaning by the user, was studied. The above-described configuration is based on the examination of such a new point of view (technical idea) by the present inventors, by controlling the water level in the main body with the water level adjustment unit, the ultrasonic wave is applied in the ultrasonic cleaning area. In addition to washing by washing, even if some dirt that is difficult to remove by ultrasonic cleaning remains in the main body, this dirt is left in the user cleaning area to make it easy for the user to clean. This is based on the new finding that dirt can be effectively reduced easily and the user's cleaning effort can be reduced.
In the present invention configured as described above, the water level adjustment unit adjusts the water level in the main body by the water flowing into the main body to the sealing water level where dirt floating on the water surface tends to adhere to the wall surface in the main body and solidify. It can be raised to a higher ultrasonic cleaning water level. Therefore, ultrasonic cleaning can be performed in a state in which the vicinity of the sealing water level, to which dirt easily adheres, is submerged. can do. Further, for example, even if the sealing water level in the main body is located at a position downstream of the mesh basket storage section where it is difficult for the user to clean, the vicinity of the sealing water level where dirt easily adheres can be cleaned by ultrasonic cleaning. It is possible to reduce the frequency and trouble of cleaning the vicinity of the sealing water level.
Furthermore, according to the structure described above, the water level adjusting portion is formed so that the water level inside the main body portion is easily raised to the ultrasonic cleaning water level higher than the sealing water level by the water flowing into the main body portion. At this time, the water level adjuster is formed so that the ultrasonic cleaning water level is positioned within the mesh basket housing and below the inlet of the mesh basket housing. In this way, when the water level inside the main body part is raised to the position inside the mesh basket storage part, the water level does not rise to the entrance part, which is the highest part of the mesh basket storage part, and the entrance of the mesh basket storage part is The rise is stopped at a position on the lower side than the part. As a result, when the water level rises and the water level drops after ultrasonic cleaning is performed, even if some dirt that is difficult to remove by ultrasonic cleaning remains in the main body, it will be in a state of floating on the water surface, for example. It is possible to control the range in which such dirt adheres to the wall surface of the main body part and remains on the wall surface, and to control the range in which such dirt remains in the mesh basket storage part which can be easily cleaned by the user.
Therefore, according to this structure, it is possible to clean by ultrasonic cleaning the vicinity of the sealing water level where dirt is likely to adhere and the portion downstream of the mesh basket housing portion of the main body that is difficult for the user to easily clean. If some dirt that is difficult to remove by ultrasonic cleaning (for example, it floats on water after ultrasonic cleaning) remains inside the main body, the dirt will adhere to the wall surface of the main body and remain on the wall surface. It is possible to suppress the range and control the range in which the dirt remains in the mesh basket storage section that can be easily cleaned by the user.

In the present invention, preferably, the water level adjustment unit is formed so that the ultrasonic cleaning water level is located below the bottom of the mesh basket placed in the mesh basket storage unit.
If the ultrasonic cleaning water level is higher than the bottom of the net basket, the bottom of the net basket is likely to be flooded, and the net basket and the garbage collected in the net basket float on the surface of the water. dirt adheres. As a result, when the garbage collected in the net basket is thrown away from the net basket, it may become difficult for the refuse to separate from the net basket, and the user may find it difficult to clean the net basket. In contrast, in the present invention configured as described above, the water level adjusting unit is positioned below the bottom of the mesh basket where the ultrasonic cleaning water level is arranged in the mesh basket storage unit. is formed to Therefore, since the bottom of the mesh basket is less likely to be flooded, it is possible to suppress deterioration in cleanability of the mesh basket. Furthermore, it is possible to clean by ultrasonic cleaning the vicinity of the sealing water level where dirt is likely to adhere and the part downstream from the mesh basket storage part of the main body that is difficult for the user to easily clean. When part of the dirt that cannot be cleaned remains inside the main body, the range in which the dirt adheres to the wall surface of the main body and remains on the wall surface is suppressed to a relatively narrow range below the bottom of the mesh basket. At the same time, the range in which the dirt remains can be controlled to a portion below the bottom of the mesh basket in the mesh basket storage portion that can be easily cleaned by the user.

In the present invention, preferably, there is further provided a dirt trapping portion formed at the bottom of the mesh basket housing portion, wherein dirt adheres to the surface of the dirt trapping portion when the water level of the dirt trapping portion drops. Designed to be easy.
In the present invention configured in this manner, some dirt that is difficult to remove by ultrasonic cleaning can adhere to the surface of the dirt trapping portion when the water level drops. Therefore, at least a part of the dirt can be attached to the dirt trapping part formed at the bottom of the net basket storage part which is easy for the user to recognize the dirt and can be easily reached by the user's fingers. can be cleaned.
In addition, according to this structure, the dirt trapping part is formed at the bottom of the mesh basket storage part and positioned below the water level for ultrasonic cleaning. When it rises to the vicinity of the ultrasonic cleaning water level, it is cleaned by ultrasonic cleaning. Therefore, the dirt trapping portion to which dirt easily adheres can be automatically cleaned by ultrasonic cleaning, and the frequency and trouble of cleaning the dirt trapping portion by the user can be reduced.

In the present invention, preferably, the dirt trapping portion has an edge portion extending inwardly from the side wall of the body portion.
In the present invention configured as described above, the water that has passed through the mesh basket disposed above the dirt trapping portion tends to form a constricted flow toward the center of the mesh basket. When such a flow flows down on the water surface from the center side, dirt floating on the water surface tends to be moved to the side wall side. In addition, dirt that has once moved toward the side wall tends to move along the side wall due to surface tension or the like, and is difficult to return to the central side. According to this structure, since the dirt trapping section has the edge extending inward from the side wall of the main body, dirt floating on the water surface moved to the side wall can easily adhere to the edge. Therefore, since the dirt trapping part has the edge part, dirt can be attached to the edge part that is relatively easy for the user to clean, and the dirt flowing out to the downstream side of the dirt trapping part when the water level drops can be reduced. Therefore, it is possible to prevent dirt from remaining on the wall surface of the main body on the downstream side of the dirt trapping section. This can effectively reduce fouling in the entire drainage system.

In the present invention, preferably, the mesh basket is curved such that its bottom protrudes downward when the mesh basket is placed in the mesh basket storage portion.
In the present invention constructed as described above, the mesh basket is curved so that the bottom thereof protrudes downward when the mesh basket is placed in the mesh basket housing portion. As a result, the mesh basket protrudes downward at a position spaced apart from the side wall of the main body. Therefore, the water that has passed through the mesh basket more easily forms a constricted flow toward the center of the mesh basket. Therefore, such a flow flows down from the center side onto the water surface, so that the dirt floating on the water surface is easily moved to the side wall side. Therefore, more dirt can be made to adhere to the edge of the dirt trapping portion formed at the bottom of the mesh basket housing portion, and the amount of dirt flowing out to the downstream side of the dirt trapping portion can be reduced. It is possible to further suppress dirt from remaining on the wall surface of the main body portion on the side. This makes it possible to more effectively reduce fouling in the entire drainage system.

In the present invention, preferably, the dirt trapping section further includes an inner trapping section forming a plurality of openings inside the edge, and the water level adjusting section is configured such that the ultrasonic cleaning water level is higher than or equal to the dirt trapping section. position.
In the present invention configured as described above, the dirt trapping part further includes the inner trapping part forming a plurality of openings inside the edge part, so that the dirt floating on the water surface is further collected into the inner trapping part. can be attached. Therefore, more dirt can be attached to the dirt trapping portion than when the dirt trapping portion has only the edge, and the dirt flowing out to the downstream side of the dirt trapping portion can be reduced. It is possible to further prevent stains from remaining on the wall surface of the main body portion on the downstream side of the portion. This makes it possible to more efficiently reduce fouling in the entire drainage system. In addition, when the water level falls further below the dirt trapping part, the dirt remains floating on the water surface, so that the dirt can be prevented from adhering to and remaining on the wall surface of the main body below the dirt trapping part. Furthermore, according to this structure, since the ultrasonic cleaning water level is located above the dirt trapping part, the dirt adhering to the dirt trapping part causes the water level in the main body to rise to the vicinity of the ultrasonic cleaning water level from the next time onwards. Sometimes more reliably cleaned by ultrasonic cleaning. Therefore, the dirt trapping portion to which dirt easily adheres can be automatically cleaned by ultrasonic cleaning, and the frequency and trouble of cleaning the dirt trapping portion by the user can be reduced.

In the present invention, preferably, the edge portion has an inwardly downwardly sloping portion, and the water level adjusting portion is formed so that the ultrasonic cleaning water level is positioned on the sloping portion. .
In the present invention configured as described above, since the inclined portion is formed so as to incline toward the inside, dirt such as dust that has flowed into the drainage device due to the inclined portion is less likely to stay at the edge. In addition, since the ultrasonic cleaning water level is located above the inclined portion, dirt can be effectively adhered to the inclined portion.

In the present invention, preferably, a metal member is arranged on the inner wall surface of the main body at the sealing water level.
In the present invention configured as described above, since the metal member is arranged on the inner wall surface of the main body portion at the seal water level, the ultrasonic waves are easily reflected, and the ultrasonic waves at the seal water level are easily reflected. Cleaning performance can be improved. In addition, by arranging the metal member on the inner wall surface, dirt containing oil can be easily removed from the portion where the metal member is arranged compared to the portion where the resin member is arranged. Therefore, for example, when ultrasonic cleaning is performed at the ultrasonic cleaning water level, it is possible to improve the ultrasonic cleaning performance at the sealing water level at which contaminants are most likely to adhere.

According to the drainage device of the present invention, the vicinity of the sealing water level where dirt is likely to adhere can be cleaned by ultrasonic cleaning, and the inside of the mesh basket storage section where the user can easily clean the range where dirt remains. can be controlled.

1 is a front view of a drainage system provided with a drainage device according to a first embodiment of the present invention; FIG. 1 is a side view of a drainage system provided with a drainage device according to a first embodiment of the invention; FIG. 1 is an exploded perspective view showing a state in which a lid, a mesh basket, and an inner trap are disassembled from a drain main body, viewed obliquely from above the sink with the drain device according to the first embodiment of the present invention attached to the sink. FIG. 2 is a cross-sectional view taken along line IV-IV of FIG. 1; FIG. FIG. 2 is a cross-sectional view taken along line VV of FIG. 1; 1 is a block diagram schematically showing the structure of a drainage system with a drainage device according to a first embodiment of the present invention; FIG. FIG. 5 is a cross-sectional view taken along line VII-VII of FIG. 4; FIG. 4 is a partially enlarged cross-sectional view showing a standby state of the drainage body of the drainage device according to the first embodiment of the present invention; FIG. 4 is a partially enlarged cross-sectional view showing a state in which water starts to flow into the drainage body of the drainage device according to the first embodiment of the present invention; Water further flows into the drainage main body of the drainage device according to the first embodiment of the present invention, and the water that has flowed in flows out to the outlet flow path through the water level adjustment section. is a partially enlarged cross-sectional view showing a state in which the is raised. FIG. 4 is a partially enlarged cross-sectional view showing a state in which water further flows into the drainage main body of the drainage device according to the first embodiment of the present invention, and the water level in the drainage main body reaches the ultrasonic cleaning water level; FIG. 4 is a partially enlarged cross-sectional view showing a state in which water stops flowing into the drainage main body of the drainage device according to the first embodiment of the present invention and the water level in the drainage main body gradually decreases. FIG. 4 is a partially enlarged cross-sectional view showing a state in which the drainage device according to the first embodiment of the present invention returns to a standby state after a series of cleaning operations are completed; FIG. 8 is a cross-sectional view showing the water level adjusting portion of the drainage device of the first modified example according to the first embodiment of the present invention in a cross-sectional view at the same position as in FIG. 7; FIG. 8 is a cross-sectional view similar to FIG. 7 showing the water level adjusting portion of the drainage device of the second modified example according to the first embodiment of the present invention; FIG. 8 is a cross-sectional view similar to FIG. 7 showing the water level adjusting portion of the drainage device of the third modified example according to the first embodiment of the present invention; FIG. 8 is a cross-sectional view similar to FIG. 7 showing the water level adjusting portion of the drainage device of the fourth modified example according to the first embodiment of the present invention; FIG. 4 is a central cross-sectional view of a drainage device according to a second embodiment of the present invention; FIG. 19 is a cross-sectional view taken along line XIX-XIX in FIG. 18;

Hereinafter, embodiments of the present invention disclosed in this specification will be described in detail with reference to the drawings. Many modifications and other embodiments of the invention will be apparent to those skilled in the art from the following description. Accordingly, the following description is to be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. Substantial details of construction and/or function may be changed without departing from the spirit of the invention.

A drainage system having a drainage device according to a first embodiment of the present invention will now be described with reference to the accompanying drawings.
FIG. 1 is a front view of a drainage system equipped with a drainage device according to a first embodiment of the present invention, and FIG. 2 is a side view of a drainage system equipped with a drainage device according to the first embodiment of the present invention. is a side view.
As shown in FIGS. 1 and 2, a drainage system 2 equipped with a drainage device 1 according to the first embodiment of the present invention is installed in a kitchen to perform ultrasonic cleaning. .

The drainage system 2 includes a sink 4 which is a water receiving part for receiving water provided in the kitchen 3; A drainage device 1 provided at the bottom of a sink 4 of a kitchen 3 and a drainage channel 8 provided downstream of the drainage device 1 are provided.

The sink 4 is formed to discharge water discharged from the kitchen faucet device 6 downstream. The kitchen faucet device 6 is connected on the upstream side to a water supply channel 9 to which water is supplied from a water supply source (not shown) and a hot water supply channel 11 to which hot water is supplied. The kitchen faucet device 6 includes a hot and cold water mixing faucet 6a, mixes water from the cold water supply channel 9 and hot water from the hot water supply channel 11, and discharges water from the water discharge part 6b. The water supply channel 9 and the hot water supply channel 11 once extend upward and are connected to the hot and cold water mixing valve 6a. It rises again and extends to 6b.

The drainage channel 8 is connected to the downstream end of the drainage device 1 and extends downward in the vertical direction. The drainage channel 8 is further connected to a downstream drainage pipe (not shown). A portion of the drainage channel 8 may be formed by the drainage body portion 10 .

Next, a drainage device according to a first embodiment of the present invention will be described with reference to FIGS. 3 to 6. FIG.
FIG. 3 is an exploded perspective view showing a state in which the lid, the mesh basket, and the inner trap are disassembled from the main body of the drain when the drain device according to the first embodiment of the present invention is attached to the sink, viewed obliquely from above the sink. 4 is a sectional view taken along line IV-IV of FIG. 1, FIG. 5 is a sectional view taken along line VV of FIG. 1, and FIG. 6 is a first embodiment of the present invention. 1 is a block diagram that schematically illustrates the structure of a drainage system with a drainage device according to one embodiment; FIG.

First, the drainage device 1 includes a drainage main body 10 which is a main body connected to the downstream end of the bottom 4a of the sink 4. As shown in FIG. A water supply channel other than the channel from the sink 4 may be connected to the drain main body 10 . Another water supply channel is connected to another water supply (not shown) or to the same water supply. The water flowing into the drainage body 10 includes water flowing into the drainage body 10 from a water supply channel other than the channel from the sink 4 . The water that flows into the drainage main body 10 also includes water containing any of detergent, shampoo, body soap, stains on tableware, stains on the water receiving portion, and the like, such as domestic wastewater.

The drain main body 10 is provided below the sink 4 and includes a mesh basket storage portion 12, which is a hollow portion in which a mesh basket is arranged, and a mesh basket storage portion 12, which is provided downstream of the mesh basket storage portion 12 and seals water. and a sealing water forming portion 14 that forms a The mesh basket housing portion 12 and the water seal forming portion 14 of the drainage body portion 10 are made of resin.
Hereinafter, in the description of the first embodiment of the present invention, the upstream side with respect to the main flow direction of water reaching the water level adjustment portion 26 is the front side, the side opposite to the upstream side is the rear side, and the water level adjustment portion 26 The right side is defined as the right side when viewed from the front, and the left side is defined as the left side when viewed from the front.

The mesh basket storage part 12 is formed in a size such that the mesh basket 18 can be arranged inside. The mesh basket housing portion 12 has a hollow shape in which the mesh basket 18 can be arranged. The mesh basket storage portion 12 includes an inlet portion 12a that opens toward the sink 4, an intermediate portion 12b that stores the mesh basket, and an outlet portion 12c that has a reduced flow path diameter from the intermediate portion toward the water seal forming portion 14. and

As shown in FIG. 5 , the entrance 12 a of the mesh basket housing portion 12 is opened in a rectangular shape and forms a drain port portion of the sink 4 . The inlet portion 12a is formed by partially recessing the bottom portion 4a further downward. The inlet portion 12 a has a flow path diameter larger than that of the water seal forming portion 14 . The inlet portion 12a forms an opening that is larger than or substantially the same size as the outer diameter of the mesh basket 18 so that the mesh basket 18 can be arranged up to the intermediate portion 12b. The inlet portion 12a may form a relatively large opening extending outward beyond the intermediate portion 12b. That is, the opening may be narrowed stepwise from the sink 4 to the intermediate portion 12b via the inlet portion 12a. An intermediate portion 12b of the mesh basket housing portion 12 is formed in a rectangular tubular shape. The intermediate portion 12b has a channel diameter larger than that of the sealing water forming portion 14. As shown in FIG. An outlet portion 12 c of the mesh basket storage portion 12 is formed at the lower end portion of the mesh basket storage portion 12 . The exit portion 12c forms an inward flat portion. The outlet portion 12 c is connected to the water seal forming portion 14 . The outlet portion 12c has a channel diameter larger than that of the water seal forming portion 14, and is formed so as to narrow the channel from the intermediate portion 12b to the water seal forming portion 14. As shown in FIG. The inlet section 12a, the intermediate section 12b and the outlet section 12c form vertical walls. The mesh basket storage part 12 has a channel diameter larger than that of the water seal forming part 14, so that it is easy for the user to visually recognize the inside of the mesh basket storage part 12, and it is easy for the user to insert his/her fingers to clean the inside. Here, the mesh basket housing portion 12 is configured such that the mesh basket 18 can be removed from the mesh basket housing portion 12 by the user in order to dispose of the garbage collected in the mesh basket 18 . Further, the mesh basket housing portion 12 is configured such that the mesh basket 18 after the trash has been thrown away by the user is attached to the mesh basket storage portion 12 . In other words, the mesh basket housing portion 12 is configured so that the user can relatively easily insert his or her fingers into the mesh basket 18 to remove or attach the mesh basket 18 . In this way, the mesh basket storage portion 12 is configured to allow the user's fingers to be easily inserted therein, so that the interior of the mesh basket storage portion 12 can be relatively easily cleaned by the user's fingers.

The water seal forming part 14 has a function of draining the water discharged to the sink 4 and storing a part of the water that has flowed therein to form a normal water seal at a water seal level W0. Here, the term "sealed water" refers to a portion filled with water by a trap, which is provided in the drainage body or the water receiving portion to block off odors and the like. The term “normal water sealing” refers to water sealing when a water discharger, such as a kitchen faucet, does not discharge water when it is not in use (standby state).

As shown in FIG. 5, the sealing water forming part 14 forms a trap-shaped flow path that forms a sealing water at the sealing water level W0.
The water seal forming portion 14 includes a connecting portion 14a connected to the outlet portion 12c of the mesh basket housing portion 12, and an ascending portion 14b, which is an ascending passage ascending obliquely upward toward the downstream side so as to form a drainage trap. A top portion 14c, which is a folded portion connecting the rising portion 14b of the drain trap between the rising portion 14b and the falling portion 14d, and a descending flow path provided downstream of the rising portion 14b and descending from the top portion 14c. and a descending portion 14d. Therefore, the sealing water forming portion 14 forms a trap-shaped flow path that folds back from the ascending portion 14b toward the descending portion 14d. The top portion 14c defines the sealing water level W0. The descending portion 14 d extends substantially vertically downward and is connected to the drainage channel 8 . The sealing water forming part 14 forms a channel of a drainage trap as a channel on the side of the drainage channel 8, and the inner diameter of the channel is small, the shape of the channel is complicated, and the depth of the channel is large. By having any of the elements such as depth, or at least a combination of some of these elements, etc., compared to the mesh basket storage portion 12, it is difficult for the user to insert his or her fingers to clean.

The drainage device 1 further includes a lid 16 arranged so as to cover the upper part of the inlet 12a of the mesh basket housing part 12, and a mesh basket 18 which is arranged on the flow path in the mesh basket housing part 12 and has a mesh. , a flow rate sensor 20 which is a detection unit for detecting water spouted from the kitchen faucet device 6, an ultrasonic oscillator 22 for oscillating ultrasonic waves to the water in the drain body 10, and the operation of the ultrasonic oscillator 22 is controlled. The water level in the drainage body 10 is increased from the sealing water level W0 in the sealing water forming part 14 to the sealing water level W0 in the sealing water forming part 14 by the control device 24 and the water flowing into the drainage body 10. A water level adjustment part 26 formed so as to be easily raised to the ultrasonic cleaning water level W2 and a dirt trapping part 28 formed at the bottom of the mesh basket housing part 12 are provided.

The lid 16 is attached to the top of the mesh basket 18 so that the mesh basket 18 is difficult to see from above. Between the lid 16 and the inlet 12a of the mesh basket housing portion 12, a hole (not shown) is formed through which small objects such as water and dust flow.

The mesh basket 18 is arranged inside the intermediate portion 12 b of the mesh basket storage portion 12 . The mesh basket 18 is formed such that its upper end is disposed inside the inlet portion 12a and its upper end substantially coincides with the inlet portion 12a. Therefore, the mesh basket 18 is formed so as to cover the entire flow path on the lower side of the inlet portion 12a. The mesh basket 18 is formed with a plurality of openings so that the water flowing from the sink 4 can pass through, while the small objects such as garbage contained in the water flowing from the sink 4 cannot pass through and are caught in the mesh basket 18 . It is designed to be collected. The mesh basket 18 is formed in a square shape when viewed from above. The mesh basket 18 can be changed to any shape of dust trapping member having a function of trapping dust and the like. The mesh basket 18 is curved so as to protrude downward when the mesh basket 18 is arranged in the mesh basket housing portion 12 . Therefore, the apex 18 a of the bottom of the mesh basket 18 is formed as the top of the curved portion at a position spaced apart from the wall surface of the mesh basket housing portion 12 . Therefore, the mesh basket 18 is formed so that the water flowing out from the top part 18a of the bottom part of the mesh basket 18 can easily flow down in the air spaced apart from the wall surface of the mesh basket storage part 12. - 特許庁When an inner catching portion 36, which will be described later, is provided, the opening of the mesh basket 18 is preferably formed to have a size smaller than that of the opening 36a of the inner catching portion 36. As shown in FIG.

The flow rate sensor 20 is provided between the hot and cold water mixer tap 6a and the water discharger 6b of the kitchen faucet device 6. As shown in FIG. The flow rate sensor 20 can detect the flow rate per unit time of water spouted from the water spouting portion 6b of the kitchen faucet device 6 . Further, the flow rate sensor 20 can detect that water is spouted from the water spouting portion 6b by detecting the flow rate per unit time. Flow sensor 20 is electrically connected to control device 24 .

The ultrasonic oscillator 22 is provided below the mesh basket housing portion 12 of the drainage body portion 10 . The ultrasonic oscillator 22 is provided at the bottom of the drainage main body 10 and arranged so as to emit ultrasonic waves upward. The ultrasonic oscillator 22 is electrically connected with the controller 24 .

The control device 24 incorporates a CPU, memory, etc., has a function of receiving a detection signal transmitted from the flow rate sensor 20, and controls the operation of the ultrasonic oscillator 22 based on a predetermined control program or the like stored in the memory. do. The control device 24 controls the oscillation of ultrasonic waves by the ultrasonic oscillator 22 and the stoppage of the oscillation. The control device 24 has an ultrasonic cleaning mode in which the ultrasonic oscillator 22 starts oscillating in conjunction with the detection of spouted water by the flow rate sensor 20 . The start of water discharge and the start of ultrasonic cleaning can be interlocked. As a modification, the flow rate sensor 20 is arranged at another position to detect the water flowing into the drainage main body 10, and the control device 24 generates ultrasonic waves from the ultrasonic oscillator 22 based on such detection. may be controlled to start oscillation. Further, as a further modification, the flow rate sensor 20 detects the water discharged from the drainage body 10, and the control device 24 controls the ultrasonic oscillator 22 to start oscillating ultrasonic waves based on such detection. you can go

Next, the water level adjusting section of the drainage device according to the first embodiment of the present invention will be described with reference to FIGS. 3 to 5 and 7. FIG.
FIG. 7 is a cross-sectional view taken along line VII--VII of FIG.
For example, when the water flowing into the drainage body 10 is at a predetermined flow rate or more, the water level adjustment part 26 adjusts the water level in the drainage body 10 to the level within the sealing water forming part 14 by the water flowing into the drainage body 10. from the sealing water level W0 in the sealing water forming portion 14 to the ultrasonic cleaning water level W2 higher than the sealing water level W0 in the sealing water forming portion 14. The water level adjusting part 26 is arranged in the sealing water forming part 14 that forms a single flow path from the inlet (inlet part 12a) to the outlet (connecting part with the drainage flow path 8) in the drainage body part 10. Adjust the water level by
The water level adjustment unit 26 adjusts the amount of water discharged to the downstream side when the water level in the drainage body 10 is between the sealing water level W0 and the ultrasonic cleaning water level W2. It is formed so as to be less than the amount of water discharged to the downstream side when reaching W2. The water level adjustment unit 26 has a function of adjusting the water level by the structure of the flow path without depending on opening and closing of the flow path by an electric electromagnetic valve or the like. The water level can be automatically adjusted according to the inflow to the

As shown in FIG. 7, the water level adjusting portion 26 is formed in the top portion 14c, which is a sealing water level regulating portion that regulates the sealing water level of the drainage trap of the sealing water forming portion 14. As shown in FIG. More specifically, the water level adjusting portion 26 is formed to protrude upward from the top portion 14c. The water level adjusting portion 26 includes a wall 30 that narrows the flow path within the seal forming portion 14 . The wall 30 forms a narrowed portion that narrows the lower side of the flow path in the sealing water forming portion 14 . The wall 30 is formed to rise upward from the bottom surface of the top portion 14c of the flow path in the sealing water forming portion 14 when viewed from the front. The wall 30 is formed so as to rise obliquely rearward and upward from the bottom surface of the top portion 14c of the channel in the sealing water forming portion 14 . The angle of inclination of the front surface 30a of this wall 30 approximates, more preferably substantially coincides with, the angle of inclination of the bottom surface of the raised portion 14b immediately before the top portion 14c. A rear surface 30b of wall 30 extends downward. Therefore, the wall 30 is formed in a triangular shape in cross section in the front-rear direction. Note that the wall 30 may be formed so that the wall surface of the water seal forming portion 14 protrudes inward to narrow the flow path. For example, the wall 30 may have a channel narrowed by narrowing the sidewall of the water seal forming portion 14 inward, and a wall surface formed to rise upward from the top portion 14c of the water seal forming portion 14. The flow path may be narrowed by.

The wall 30 extends in the left-right direction with respect to the main flow direction of water reaching the water level adjusting portion 26, and the wall 30 is formed with a notch 32 extending downward from its upper end 30c. The lateral width A1 of the notch 32 is substantially constant in the vertical direction. A lower portion of the notch 32 is formed by the top portion 14c. The notch 32 extends from the front surface 30a to the rear surface 30b in the front-rear direction. As shown in FIG. 7, the flow path in the sealing water forming portion 14 is formed in a T-shape in a lateral cross section.

The amount of water discharged from the water discharge portion 6b in a normal usage mode (the amount of water flowing into the drainage body 10 per unit time), and the water that cannot pass through the notch 32 is the water level in the drainage body 10. and forms a flow over the top 30c of the wall 30 portion when the water level is above the top 30c. The wall 30 limits the amount of drainage per unit time passing through the notch 32 when the water level is below the upper end 30c, and restricts the flow above the upper end 30c when the water level is above the upper end 30c. It forms a special weir that forms a The amount of water discharged per unit time passing through the first area B1 of the notch 32 (the area cut out by the notch 32) (water discharge flow rate) is determined by the width A1 of the notch 32 and the height h1 of the water level (from the top 14c). determined by the actual height of the water level). In addition, the amount of water discharged per unit time passing through the second area B2 (the amount of water discharged) is determined by the width A2 of the flow path of the sealing water forming portion 14 and the height h2 of the water level above the upper end 30c (the actual water level from the upper end 30c). height). The second region B2 is a region above the upper end 30c of the wall 30. As shown in FIG.

When the water level exceeds the upper end 30c, the amount of water spouted from the water spouting portion 6b (the amount of inflow per unit time flowing into the drainage body portion 10) cannot pass through the first region B1 of the notch 32. Since the remaining water forms a flow over the upper end 30c of the wall 30 portion, the rise of the water level is suppressed.
When the water level exceeds the upper end 30c, the water level adjustment unit 26 controls the amount of water flowing into the drainage body 10 per unit time, and the amount of water passing through the first region B1 of the notch 32 per unit time. A second amount of wastewater, which is the sum of the amount of wastewater passing through the second region B2 per unit time, is discharged. The amount of inflow per unit time flowing into the drainage main body 10 is the same as the second amount of drainage, which is the sum of the amount of drainage per unit time passing through the first region B1 and the amount of drainage per unit time passing through the second region B2. , the water level almost stops rising, and the water level reaches the ultrasonic cleaning water level W2.

The ultrasonic cleaning water level W2 is set to a height higher than the upper end 30c of the wall 30 and lower than the ceiling portion 14e of the top portion 14c of the sealing water forming portion 14. As shown in FIG. Thus, the ultrasonic cleaning water level W2 is defined by the relationship between the first area B1 and the second area B2.

The water level adjuster 26 is formed so that the ultrasonic cleaning water level W2 is positioned within the mesh basket storage part 12 . More preferably, the water level adjusting portion 26 may be formed so as to be located below the entrance portion 12 a of the mesh basket housing portion 12 . Further, the water level adjustment unit 26 may be formed so that the ultrasonic cleaning water level W2 is positioned below the bottom of the mesh basket 18 arranged in the mesh basket housing part 12 . Furthermore, the water level adjusting portion 26 may be formed so that the ultrasonic cleaning water level W2 is at a position equal to or higher than the dirt trapping portion 28 . Furthermore, the water level adjustment unit 26 is It may be formed so that the ultrasonic cleaning water level W2 is positioned above the inclined portion 34a described later. Also, as a modification, the water level adjusting section 26 can be formed by means different from the wall 30, such as an electrically operated electromagnetic valve, a flow path adjusting valve, or the like. At this time, the control device 24 closes the electromagnetic valve or the like based on the fact that the control device 24 has determined the start of the water discharge, and raises the water level in the water seal forming portion 14 to the ultrasonic cleaning water level W2. It may be controlled to rise. Furthermore, for example, when the water level rises to the ultrasonic cleaning water level W2, the control device 24 performs control such as opening and closing the electromagnetic valve so that the water does not flow back to the sink 4 side. You may suppress a water level rise.

Next, the dirt trapping section 28 of the drainage device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 3 to 5. FIG.
The dirt trapping portion 28 is formed so that dirt tends to adhere to the surface when the water level drops above the dirt trapping portion 28 . The dirt catcher 28 includes a rim 34 that protrudes inward from the side wall of the drain body 10 in a stepped manner and an inner catcher 36 that defines a plurality of openings 36a inside the rim 34 .

The edge portion 34 has a square outer shape, a hollow inside, and an inclined portion 34a that slopes downward toward the inside. The inclined portion 34a forms a flat surface that descends inward. The rim 34 further includes a cylindrical portion 34b extending vertically downward from the inner peripheral end. The cylindrical portion 34b extends below the sealing water level W0. The inclined portion 34 a of the dirt trapping portion 28 and the inner trapping portion 36 form the bottom portion of the mesh basket housing portion 12 . All or part of the bottom of the mesh basket housing portion 12 may not be inclined. The edge portion 34 is a metal member such as a stainless member. Therefore, the cylindrical portion 34b of the edge portion 34, which is a metal member, is arranged on the inner wall surface of the drainage body portion 10 at the sealing water level W0. The edge portion 34 preferably extends below the sealing water level W0 in order to improve the ultrasonic cleaning performance at the sealing water level W0, but the edge portion 34 extends below the sealing water level W0. Even if it is not, if it extends to the vicinity of the seal water level W0, it has a function of improving the constant ultrasonic cleaning performance of the position of the seal water level W0. Further, the edge portion 34 has a function of improving a constant ultrasonic cleaning performance even if it does not extend below the sealing water level W0. Furthermore, the cylindrical portion 34b may be arranged on a part of the entire circumference of the inner wall surface of the drainage body 10 at the sealing water level W0. The outer peripheral portion of the edge portion 34 may be made of the same material as the sink 4, and the inner peripheral portion thereof may be made of a stainless member.

The inner trapping portion 36 forms a circular outer peripheral shape. The outer circumference of the inner trapping portion 36 is connected to the inner circumference of the edge portion 34 so that the upper surface of the edge portion 34 and the upper surface of the inner trapping portion 36 form a continuous, substantially flush upper surface. The inner trapping portion 36 forms a downward slope that is concave toward the central portion. A plurality of openings 36a of the inner capturing portion 36 are formed in a circumferential shape around the central portion. The inner trapping portion 36 may form, for example, a cross-like structure so as to form a plurality of openings 36a, or may form, for example, a mesh-like structure. The inner trapping portion 36 is a metal member such as a stainless member. The inner capturing portion 36 may be made of resin.

Next, the operation (action) of the drainage system including the drainage device 1 according to the first embodiment of the present invention described above will be described with reference to FIGS. 8 to 13. FIG.
FIG. 8 is a partially enlarged cross-sectional view showing the standby state of the drainage body of the drainage device according to the first embodiment of the present invention, and FIG. FIG. 10 is a partially enlarged cross-sectional view showing a state in which water is started, and FIG. 10 shows that water further flows into the drainage main body of the drainage device according to the first embodiment of the present invention, and the water level in the sealing water forming part rises by the water level adjustment part. FIG. 11 is a partially enlarged cross-sectional view showing a state in which water is further introduced into the drainage body of the drainage device according to the first embodiment of the present invention, and the water level in the drainage body reaches the ultrasonic cleaning water level. FIG. 12 is a partially enlarged cross-sectional view showing a state in which the inflow of water into the drainage main body of the drainage device according to the first embodiment of the present invention stops and the water level in the drainage main body gradually decreases FIG. 13 is a cross-sectional view, and FIG. 13 is a partially enlarged cross-sectional view showing how the drainage device according to the first embodiment of the present invention returns to a standby state after a series of cleaning operations are completed;

FIG. 8 shows a standby state before water is spouted from the kitchen faucet device 6 . In the standby state, the water level in the drainage main body 10 is the sealing water level W0 at the top portion 14c of the sealing water forming portion 14. As shown in FIG. When the water level in the drainage main body 10 reaches the sealing water level W0, the drainage channel 8 and the inlet 12a side of the mesh basket storage part 12 and the drainage channel 8 side are pneumatically blocked in the standby state, Odor is reliably prevented from rising from the drainage channel 8 to the inlet portion 12a. In the standby state, the kitchen faucet device 6 is in a state where the water is stopped, and the ultrasonic oscillator 22 is also in a stopped state.

For example, when the user pours water containing dirt E into the sink 4 in the standby state, this water flows into the drainage body 10 . For example, as shown in FIG. 8, dirt E adheres to the mesh basket 18, the mesh basket housing portion 12, the water sealing portion 14, and the like.

As shown in FIG. 9, when water is discharged from the kitchen faucet device 6, water flows from the bottom surface 4b of the sink 4 through the gap between the bottom surface 4b and the lid 16 and into the mesh basket as indicated by an arrow F1. It flows into the inlet portion 12 a of the storage portion 12 . As indicated by an arrow F2, the water that has flowed into the inlet portion 12a passes through the mesh basket 18 and further flows down. At this time, since the apex 18a of the bottom of the mesh basket 18 is positioned away from the wall surface of the mesh basket housing portion 12 as indicated by the arrow F3, the water flowing out from the top 18a of the lower part of the mesh basket 18 However, it becomes easy to flow down in the air spaced apart from the wall surface of the mesh basket storage part 12.例文帳に追加As indicated by arrows F2 and F3, water flowing down from the mesh basket 18 passes through the plurality of openings 36a of the inner trapping portion 36 of the dirt trapping portion 28 and is supplied into the connecting portion 14a of the water seal forming portion 14. As shown in FIG.

Since water flows into the drainage body 10, the water level starts to rise from the sealing water level W0, and as indicated by the arrow F4, the water exceeding the top portion 14a of the sealing water forming portion 14 is turned off by the water level adjusting portion 26. It is discharged to the drainage channel 8 side through the notch 32 .

Here, the amount of inflow per unit time (or the total amount of Inflow amount) of water flows into the drainage main body 10, the water cannot completely flow out from the notch 32, and the water level in the drainage main body 10 is automatically raised. At this time, the water flowing out from the notch 32 of the water level adjusting portion 26 flows out to the drainage channel 8 as indicated by the arrow F4. In this manner, the water level automatically rises without user intervention to raise the water level. Therefore, it is unnecessary for the user to close the drain valve or the like provided in the conventional drain channel, and the water is supplied into the drain main body 10, so that the drain main body is The water level in the unit 10 automatically reaches the ultrasonic cleaning water level W2, and ultrasonic cleaning can be automatically performed up to the inner wall surface near the sealing water level W0, the dirt trapping section 28, and the like.

Since the water level adjusting section 26 has a wall 30 that narrows a part of its flow path, the first drainage amount per unit time can be relatively small, and the water level in the rising section 14b can be controlled by a relatively small amount of water. can be raised. Thereafter, until FIG. 11, water continues to flow into the drainage body 10 as indicated by an arrow F1.

As shown in FIG. 10, the water level adjuster 26 relatively easily raises the water level in the drainage main body 10 to the height of the upper end 30c higher than the sealing water level W0 by the water flowing into the drainage main body 10. be able to. Since the first drainage amount per unit time that can pass through the notch 32 is a relatively small flow rate, the water level in the drainage body 10 rises to the upper end 30c due to the inflow of relatively small amount of water. For example, when water is spouted from the water spouting portion 6b in a normal usage mode, the water level in the drainage main body 10 rises relatively easily to the upper end 30c due to the inflow of water due to the water spouting in such a normal usage mode. .

As shown in FIG. 11, the water level adjuster 26 raises the water level in the drainage body 10 by the water flowing into the drainage body 10 to an ultrasonic cleaning water level W2 higher than the upper end 30c. When the water level in the drainage body 10 becomes higher than the upper end 30c of the wall 30, a second drainage amount per unit time is discharged downstream from the first area B1 and the second area B2. That is, at a height lower than the upper ends 30c of the walls 30, water is discharged downstream through the cutouts 32 between the walls 30. As shown in FIG. At a height higher than the upper end 30c of the wall 30, water is discharged downstream from the entire lateral width of the water seal forming portion 14 so as to overcome the upper end 30c. When the water level exceeds the upper end 30c, the inflow amount per unit time flowing into the drainage main body 10 is more than the first drainage amount per unit time that can be discharged before reaching the upper end 30c. Since the second drainage volume increases, further rise in the water level is suppressed. For example, when water is spouted from the water spouting portion 6b in a normal usage mode, the water level in the drainage main body 10 does not rise to the ultrasonic cleaning water level W2 due to the inflow of water due to the water spouting in such a normal usage mode. suppressed. A normal usage mode is, for example, 2.5 to 15 L/min. It is preferable that the normal use mode includes water discharge at the maximum flow rate defined by the water discharger 6b (water discharge when the water discharge opening is 100%). That is, even if water is discharged from the water discharger 6b in the maximum flow rate, it is preferable to prevent the water level in the drainage main body 10 from overflowing into the water receiving part. For example, even if water is spouted from the water discharger 6b in the maximum flow rate usage mode (spouting opening), the water level in the drainage main body 10 will rise even with the inflow of water due to the maximum flow rate usage mode. , the height of which is lower than that of the ceiling portion 14e. When the water level in the drainage main body 10 rises to the ultrasonic cleaning water level W2 on the water level adjustment part 26 side, the water level in the drainage main body 10 rises from the inner trapping part 28 to the edge on the mesh basket storage part 12 side. and rise.

The control device 24 causes the ultrasonic oscillator 22 to oscillate while the water level in the drainage body 10 has reached the ultrasonic cleaning water level W2. As a result, ultrasonic cleaning can be performed in a state in which the vicinity of the sealing water level W0, to which dirt easily adheres, is submerged. It can be washed by washing. In addition, since the ultrasonic cleaning water level W2 is located above the dirt trapping part 28, the dirt adhering to the dirt trapping part 28 will increase the water level in the drainage body 10 to near the ultrasonic cleaning water level W2 from the next time onwards. It is more reliably cleaned by ultrasonic cleaning when cleaning. The control device 24 causes the ultrasonic oscillator 22 to oscillate in a state assumed to reach the ultrasonic cleaning water level W2.

Even if water further flows into the drainage body 10 after the water level in the drainage body 10 has reached the ultrasonic cleaning water level W2, the water level in the drainage body 10 is maintained near the ultrasonic cleaning water level W2. be. At this time, the water discharge from the water level adjusting section 26 continues.

The ultrasonic cleaning water level W2 is positioned above the water level adjusting section 26 on the side of the water level adjusting section 26 in the drainage body 10 . The ultrasonic cleaning water level W2 is positioned inside the mesh basket storage portion 12 and below the entrance portion 12a of the mesh basket storage portion 12. As shown in FIG. As a result, when the water level rises and the water level drops after ultrasonic cleaning is performed, even if some dirt that cannot be cleaned only by ultrasonic cleaning remains in the drain main body 10, it will be removed from the water surface, for example. The net allows the user to easily clean the range in which the dirt that floats on the wall surface adheres to the wall surface of the drainage body 10 and remains on the wall surface. It can be controlled inside the car storage section 12 .

The ultrasonic cleaning water level W2 has an inward inclined portion 34a at the edge portion 34, and is positioned above the inclined portion 34a on the side of the mesh basket storage portion 12 in the drainage body portion 10. As shown in FIG. Since the inclined portion 34a is formed so as to incline toward the inner side, dirt such as dust that has flowed into the drainage device 1 is less likely to stay on the edge portion 34, and a decrease in drainage performance due to the edge portion 34 can be suppressed. , the ultrasonic cleaning water level is positioned above the inclined portion 34a, so that dirt can be effectively adhered to the inclined portion 34a.

The ultrasonic cleaning water level W2 is positioned below the bottom of the mesh basket 18 arranged in the mesh basket storage portion 12 on the side of the mesh basket storage portion 12 in the drainage body portion 10 . Therefore, since the bottom of the mesh basket 18 is less likely to be flooded, deterioration of the cleanability of the mesh basket 18 can be suppressed.

As shown in FIG. 12, when the inflow of water into the drainage main body 10 ends, the second drainage amount per unit time is discharged downstream from the first region B1 and the second region B2, and the drainage main body 10 The water level inside automatically starts to descend from the ultrasonic cleaning water level W2. Therefore, the water level on the side of the mesh basket housing portion 12 in the drainage body portion 10 gradually descends from the inclined portion 34 a of the edge portion 34 of the dirt trapping portion 28 . The dirt trapping portion 28 is formed so that when the water level is lowered along the surface of the inclined portion 34a of the edge portion 34 of the dirt trapping portion 28, dirt is likely to adhere (adsorb) to the surface. As a result, at least part of the dirt that is difficult to remove by ultrasonic cleaning is caused to adhere to the surface of the inclined portion 34a of the edge portion 34 of the dirt trapping portion 28 when the water level drops along the surface of the dirt trapping portion 28. can be done.

When the water level in the drainage body 10 further drops, the water level in the drainage body 10 on the side of the mesh basket storage part 12 gradually drops from the edge 34 of the dirt trapping part 28 to the inner trapping part 36 . As the water level drops along the surface of the inner trapping portion 36 of the dirt trapping portion 28, more dirt floating on the water surface can adhere to the inner trapping portion 36. Therefore, more dirt can adhere to the dirt trapping portion 28 than when the dirt trapping portion 28 has only the edge portion 34 . Dirt floating on the surface of the water tends to come closer to the inner wall surface inside the drainage main body 10 due to surface tension or the like, and the dirt that has come closer to the inner wall surface side adheres from the edge portion 34 to the inner trapping portion 36 . Therefore, it is possible to reduce the amount of dirt that flows downstream of the dirt trapping section 28 and prevent dirt from remaining on the wall surface of the drainage body 10 on the downstream side of the dirt trapping section 28 . As a result, dirt in the entire drainage device 1 can be efficiently reduced.

As shown in FIG. 13, when the water level in the drainage body 10 drops to the sealing water level W0, the outflow of water from the notch 32 ends, and the drainage device 1 returns to the standby state.

Next, with reference to FIG. 14, a first modified example of the water level adjusting section of the drainage device according to the first embodiment of the present invention will be described. Regarding the first modified example of the water level adjusting section 126 of the drainage device 1 according to the first embodiment of the present invention, only the differences from the water level adjusting section 26 of the drainage device 1 according to the first embodiment will be described, and the same parts will be denoted by the same reference numerals. , and the description is omitted. The operation (action) of the first modified example of the water level adjustment portion 126 of the drainage device 1 according to the first embodiment of the present invention is the same as the operation (action) of the water level adjustment portion 26 of the drainage device 1 according to the first embodiment. Therefore, the explanation is omitted.
FIG. 14 is a cross-sectional view showing the water level adjusting portion of the first modified example of the drainage device according to the first embodiment of the present invention in a cross-sectional view at the same position as in FIG.

The structure of the water level adjusting portion of the drainage device of the first modified example is different from that of the water level adjusting portion of the drainage device according to the first embodiment of the present invention. In the drainage device 1, the water level in the drainage main body 10 rises from the sealing water level W0 in the sealing water forming part 14 to a level higher than the sealing water level W0 in the sealing water forming part 14 by the water flowing into the drainage main body 10. A water level adjuster 126, which is a flow rate adjuster, is provided so that the water level can easily rise up to the sonic cleaning water level W2.
The water level adjusting unit 126 adjusts the amount of water discharged to the downstream side when the water level in the drainage body 10 is between the sealing water level W0 and the ultrasonic cleaning water level W2. It is formed so as to be less than the amount of water discharged to the downstream side when reaching W2.

The water level adjusting portion 126 includes a wall 130 that narrows the flow path within the seal forming portion 14 . The wall 130 forms a narrowed portion that narrows the lower side of the flow path in the sealing water forming portion 14 . The wall 130 is formed so as to rise upward from the bottom surface of the top portion 14c of the flow path in the sealing water forming portion 14 when viewed from the front. The wall 130 is formed so as to rise obliquely rearward and upward from the bottom surface of the top portion 14c of the channel in the sealing water forming portion 14 .

As shown in FIG. 14, the wall 130 extends in the horizontal direction with respect to the main flow direction of water reaching the water level adjusting portion 126, and the wall 130 is formed with a notch 132 extending downward from the upper end 30c thereof. ing. A lateral width A1 of the notch 132 increases downward in the vertical direction. The notch 132 forms a structure in which the top of a triangle is cut off along a line parallel to the base in a front view, for example, a trapezoidal first region B1. A lower portion of the notch 132 is formed by the top portion 14c. The notch 132 extends from the front surface 30a to the rear surface 30b in the front-rear direction.

The amount of water discharged from the water discharge portion 6b in a normal usage mode (the amount of water flowing into the drainage body 10 per unit time), the water that cannot pass through the notch 132 is the water level in the drainage body 10. and form a flow above the top 30c when the water level exceeds the top 30c. The wall 130 limits the amount of drainage per unit time passing through the notch 32 when the water level is below the upper end 30c, and restricts the flow above the upper end 30c when the water level is above the upper end 30c. It forms a special weir that forms a The amount of drainage per unit time (drainage flow rate) passing through the first area B1 of the notch 132 (the area cut out by the notch 32) is determined by the width A1 of the notch 32 and the height h1 of the water level. In addition, the amount of water discharge per unit time that can pass through the second region B2 (water discharge flow rate) is determined by the width A2 of the flow path of the sealing water forming portion 14 and the height h2 of the water level above the upper end 30c (the actual water level from the upper end 30c). height). The second region B2 is a region above the upper end 30c of the wall 30. As shown in FIG.

When the water level exceeds the upper end 30c, the amount of water spouted from the water spouting portion 6b (the amount of inflow per unit time flowing into the drainage body portion 10) cannot pass through the first region B1 of the notch 132. Since the remaining water forms a flow over the upper end 30c of the wall 130 portion, the rise of the water level is suppressed.
When the water level exceeds the upper end 30c, the water level adjustment unit 126 controls the amount of water flowing into the drainage body 10 per unit time, and the amount of water passing through the first region B1 of the notch 132 per unit time. A second amount of wastewater, which is the sum of the amount of wastewater passing through the second region B2 per unit time, is discharged. The amount of inflow per unit time flowing into the drainage main body 10 is the same as the second amount of drainage, which is the sum of the amount of drainage per unit time passing through the first region B1 and the amount of drainage per unit time passing through the second region B2. , the water level almost stops rising, and the water level reaches the ultrasonic cleaning water level W2.

The ultrasonic cleaning water level W2 is set to a height higher than the upper end 30c of the wall 130 and lower than the ceiling portion 14e of the top portion 14c of the sealing water forming portion 14. FIG. Thus, the ultrasonic cleaning water level W2 is defined by the relationship between the first area B1 and the second area B2.

Next, with reference to FIG. 15, a second modification of the water level adjusting section of the drainage device according to the first embodiment of the present invention will be described. Regarding the water level adjusting section 226 of the second modified example of the drainage device 1 according to the first embodiment of the present invention, only points different from the water level adjusting section 26 of the drainage device 1 according to the first embodiment will be described, and the same parts will be denoted by the same reference numerals. , and the description is omitted. The operation (action) of the water level adjustment section 226 of the first modified example of the drainage device 1 according to the first embodiment of the present invention is the same as the operation (action) of the water level adjustment section 26 of the drainage device 1 according to the first embodiment. Therefore, the explanation is omitted.
FIG. 15 is a cross-sectional view similar to FIG. 7 showing the water level adjusting portion of the second modified example of the drainage device according to the first embodiment of the present invention.

The structure of the water level adjusting portion of the drainage device of the first modified example is different from that of the water level adjusting portion of the drainage device according to the first embodiment of the present invention. In the drainage device 1, the water level in the drainage main body 10 rises from the sealing water level W0 in the sealing water forming part 14 to a level higher than the sealing water level W0 in the sealing water forming part 14 by the water flowing into the drainage main body 10. A water level adjuster 226, which is a flow rate adjuster, is provided so that the water level can easily rise up to the sonic cleaning water level W2.
The water level adjustment unit 226 adjusts the amount of water discharged to the downstream side when the water level in the drainage body 10 is between the sealing water level W0 and the ultrasonic cleaning water level W2. It is formed so as to be less than the amount of water discharged to the downstream side when reaching W2.

The water level adjusting portion 226 includes a wall 230 that narrows the flow path within the seal forming portion 14 . The wall 230 forms a narrowed portion that narrows the lower side of the flow path in the sealing water forming portion 14 . The wall 230 is formed to rise upward from the bottom surface of the top portion 14c of the flow path in the sealing water forming portion 14 when viewed from the front. The wall 230 is formed to rise obliquely rearward and upward from the bottom surface of the top portion 14c of the flow path in the sealing water forming portion 14 .

As shown in FIG. 15, the wall 230 extends in the horizontal direction with respect to the main flow direction of water reaching the water level adjusting portion 226, and the wall 230 is formed with a notch 232 extending downward from its upper end 30c. ing. The lateral width A1 of the notch 232 narrows downward in the vertical direction. The notch 232 forms an inverted triangular first region B1 when viewed from the front. A lower portion of the notch 232 is formed by the top portion 14c. The notch 232 extends from the front surface 30a to the rear surface 30b in the front-rear direction.

The amount of water discharged from the water discharge portion 6b in a normal usage mode (the amount of water flowing into the drainage main body 10 per unit time), the water that cannot pass through the notch 232 is the water level in the drainage main body 10. and form a flow above the top 30c when the water level exceeds the top 30c. The wall 230 limits the amount of drainage per unit time passing through the notch 232 when the water level is below the upper end 30c, and restricts the flow above the upper end 30c when the water level is above the upper end 30c. It forms a special weir that forms a The amount of water discharged per unit time passing through the first region B1 of the notch 232 (the region cut out by the notch 232) (water discharge flow rate) is determined by the width A1 of the notch 232 and the height h1 of the water level (from the top 14c). determined by the actual height of the water level). In addition, the amount of water discharged per unit time passing through the second area B2 (the amount of water discharged) is determined by the width A2 of the flow path of the sealing water forming portion 14 and the height h2 of the water level above the upper end 30c (the actual water level from the upper end 30c). height). The second region B2 is a region above the upper end 30c of the wall 230. As shown in FIG.

When the water level exceeds the upper end 30c, the amount of water spouted from the water spouting portion 6b (the inflow amount per unit time flowing into the drainage body portion 10) does not pass through the first region B1 of the notch 232. Since the remaining water forms a flow over the upper end 30c of the wall 230 portion, the rise of the water level is suppressed.
When the water level exceeds the upper end 30c, the water level adjustment unit 226 adjusts the amount of drainage per unit time passing through the first region B1 of the notch 232 with respect to the amount of water flowing into the drainage body 10 per unit time. A second amount of wastewater, which is the sum of the amount of wastewater passing through the second region B2 per unit time, is discharged. The amount of inflow per unit time flowing into the drainage main body 10 is the same as the second amount of drainage, which is the sum of the amount of drainage per unit time passing through the first region B1 and the amount of drainage per unit time passing through the second region B2. , the water level almost stops rising, and the water level reaches the ultrasonic cleaning water level W2.

Next, with reference to FIG. 16, a third modification of the water level adjusting section of the drainage device according to the first embodiment of the present invention will be described. Regarding the water level adjusting section 326 of the third modified example of the drainage device 1 according to the first embodiment of the present invention, only differences from the water level adjusting section 26 of the drainage device 1 according to the first embodiment will be described, and the same parts will be denoted by the same reference numerals. , and the description is omitted. The operation (action) of the water level adjustment section 326 of the third modified example of the drainage device 1 according to the first embodiment of the present invention is the same as the operation (action) of the water level adjustment section 26 of the drainage device 1 according to the first embodiment. Therefore, the explanation is omitted.
FIG. 16 is a cross-sectional view similar to FIG. 7 showing the water level adjusting portion of the drainage device of the third modification according to the first embodiment of the present invention.

The structure of the water level adjusting portion of the drainage device of the third modified example is different from that of the water level adjusting portion of the drainage device according to the first embodiment of the present invention. In the drainage device 1, the water level in the drainage main body 10 rises from the sealing water level W0 in the sealing water forming part 14 to a level higher than the sealing water level W0 in the sealing water forming part 14 by the water flowing into the drainage main body 10. A water level adjuster 326, which is a flow rate adjuster, is provided so that it can easily rise to the sonic cleaning water level W2.
The water level adjustment unit 326 adjusts the amount of water discharged to the downstream side when the water level in the drainage body 10 is between the sealing water level W0 and the ultrasonic cleaning water level W2. It is formed so as to be less than the amount of water discharged to the downstream side when reaching W2.

The water level adjusting portion 326 includes a wall 330 that narrows the flow path within the seal forming portion 14 . The wall 330 forms a narrowed portion that narrows the lower side of the flow path in the sealing water forming portion 14 . The wall 330 is formed to rise upward from the bottom surface of the top portion 14c of the flow path in the sealing water forming portion 14 when viewed from the front. The wall 330 is formed so as to rise obliquely rearward and upward from the bottom surface of the top portion 14c of the channel in the sealing water forming portion 14 .

As shown in FIG. 16, the wall 330 extends in the horizontal direction with respect to the main flow direction of the water reaching the water level adjusting portion 326, and further extends upward from the lower end of the wall 330 and forms a rectangular opening. A notch 332 is formed to accommodate. The lateral width A1 of the notch 332 is substantially constant in the vertical direction. The notch 332 forms a square-shaped first region B1 when viewed from the front. A lower portion of the notch 332 is formed by the top portion 14c. The notch 332 extends from the front surface 30a to the rear surface 30b in the front-rear direction. Note that the notch 332 may be an opening formed in the wall 330 in a circular shape, an elliptical shape, or the like.

The amount of water discharged from the water discharge portion 6b in a normal usage mode (the amount of water flowing into the drainage body 10 per unit time), and the water that cannot pass through the notch 332 is the water level in the drainage body 10. and form a flow above the top 30c when the water level exceeds the top 30c. The wall 330 limits the amount of drainage per unit time passing through the notch 332 when the water level is below the upper end 30c, and restricts the flow above the upper end 30c when the water level is above the upper end 30c. It forms a special weir that forms a The amount of water discharged per unit time passing through the first area B1 of the notch 332 (the area cut out by the notch 332) (water discharge flow rate) is determined by the width A1 of the notch 332 and the height h1 of the water level (from the top 14c). determined by the actual height of the water level). In addition, the amount of water discharged per unit time passing through the second area B2 (the amount of water discharged) is determined by the width A2 of the flow path of the sealing water forming portion 14 and the height h2 of the water level above the upper end 30c (the actual water level from the upper end 30c). height). The second region B2 is a region above the upper end 30c of the wall 330. As shown in FIG.

When the water level exceeds the upper end 30c, the amount of water spouted from the water spouting portion 6b (the inflow amount per unit time flowing into the drainage body portion 10) does not pass through the first region B1 of the notch 332. Since the remaining water forms a flow over the upper end 30c of the wall 330 portion, the rise of the water level is suppressed. When the water level exceeds the upper end 30c, the water level adjustment unit 326 adjusts the amount of drainage per unit time passing through the first region B1 of the notch 332 to the amount of water flowing into the drainage body 10 per unit time. A second amount of wastewater, which is the sum of the amount of wastewater passing through the second region B2 per unit time, is discharged. The amount of inflow per unit time flowing into the drainage main body 10 is the same as the second amount of drainage, which is the sum of the amount of drainage per unit time passing through the first region B1 and the amount of drainage per unit time passing through the second region B2. , the water level almost stops rising, and the water level reaches the ultrasonic cleaning water level W2.

Next, with reference to FIG. 17, a fourth modified example of the water level adjusting section of the drainage device according to the first embodiment of the present invention will be described. Regarding the water level adjusting section 426 of the fourth modified example of the drainage device 1 according to the first embodiment of the present invention, only differences from the water level adjusting section 26 of the drainage device 1 according to the first embodiment will be described, and the same parts will be denoted by the same reference numerals. , and the description is omitted. The operation (action) of the water level adjustment unit 426 of the drainage device 1 of the fourth modification according to the first embodiment of the present invention is the same as the operation (action) of the water level adjustment unit 26 of the drainage device 1 according to the first embodiment. Therefore, the explanation is omitted.
FIG. 17 is a cross-sectional view similar to FIG. 7 showing the water level adjusting portion of the drainage device of the fourth modification according to the first embodiment of the present invention.

The structure of the water level adjusting portion of the drainage device of the fourth modified example is different from that of the water level adjusting portion of the drainage device according to the first embodiment of the present invention. In the drainage device 1, the water level in the drainage main body 10 rises from the sealing water level W0 in the sealing water forming part 14 to a level higher than the sealing water level W0 in the sealing water forming part 14 by the water flowing into the drainage main body 10. A water level adjuster 426, which is a flow rate adjuster, is provided so that it can easily rise to the sonic cleaning water level W2.
The water level adjustment unit 426 adjusts the amount of water discharged to the downstream side when the water level in the drainage body 10 is between the sealing water level W0 and the ultrasonic cleaning water level W2. It is formed so as to be less than the amount of water discharged to the downstream side when reaching W2.

The water level adjusting portion 426 includes a wall 430 that narrows the flow path within the seal forming portion 14 . The wall 430 forms a narrowed portion that narrows the lower side of the flow path in the sealing water forming portion 14 . The wall 430 is formed to rise upward from the bottom surface of the top portion 14c of the flow path in the water seal forming portion 14 when viewed from the front. The wall 430 is formed so as to rise obliquely rearward and upward from the bottom surface of the top portion 14c of the channel in the sealing water forming portion 14 .

As shown in FIG. 17, the wall 430 extends in the left-right direction with respect to the main flow direction of the water reaching the water level adjustment portion 426, and the wall 430 has rectangular openings extending up and down on the left and right sides thereof. A forming notch 432 is formed. The width A1 represented by the sum of the lateral widths of the cutouts 432 on both the left and right sides is substantially constant in the vertical direction. The notch 432 forms a first region B1 that is the sum of the quadrangular first regions on the left and right sides of the wall 430 when viewed from the front. A lower portion of the notch 432 is formed by the top portion 14c. The notch 432 extends from the front surface 30a to the rear surface 30b in the front-rear direction.

The amount of water spouted from the water spouting portion 6b in a normal usage mode (the amount of inflow per unit time flowing into the drainage body 10), the water that cannot pass through the notch 432 is the water level in the drainage body 10. and form a flow above the top 30c when the water level exceeds the top 30c. The wall 430 limits the amount of drainage per unit time passing through the notch 432 when the water level is below the upper end 30c, and restricts the flow above the upper end 30c when the water level is above the upper end 30c. It forms a special weir that forms a The amount of water discharged per unit time passing through the first region B1 of the notch 432 (the region cut out by the notch 432) is determined by the width A1 of the notch 432 and the height h1 of the water level (from the top 14c). determined by the actual height of the water level). In addition, the amount of water discharged per unit time passing through the second area B2 (the amount of water discharged) is determined by the width A2 of the flow path of the sealing water forming portion 14 and the height h2 of the water level above the upper end 30c (the actual water level from the upper end 30c). height). The second region B2 is a region above the upper end 30c of the wall 430. As shown in FIG.

When the water level exceeds the upper end 30c, the amount of water spouted from the water spouting portion 6b (the inflow amount per unit time flowing into the drainage body portion 10) does not pass through the first region B1 of the notch 432. Since the remaining water forms a flow over the upper end 30c of the wall 430 portion, the rise of the water level is suppressed.
When the water level exceeds the upper end 30c, the water level adjustment unit 426 controls the amount of water flowing into the drainage main body 10 per unit time and the amount of water passing through the first region B1 of the notch 432 per unit time. A second amount of wastewater, which is the sum of the amount of wastewater passing through the second region B2 per unit time, is discharged. The amount of inflow per unit time flowing into the drainage main body 10 is the same as the second amount of drainage, which is the sum of the amount of drainage per unit time passing through the first region B1 and the amount of drainage per unit time passing through the second region B2. , the water level almost stops rising, and the water level reaches the ultrasonic cleaning water level W2.

The present inventors have found that the ultrasonic cleaning area is mainly cleaned by ultrasonic cleaning in the drainage body 10, unlike the conventional view of simply cleaning the entire drainage body 10 by ultrasonic cleaning. and the mesh basket storage section, which is a user cleaning area that facilitates cleaning by the user, was examined (technical concept). The above-described configuration is based on the examination of such a new point of view (technical idea) by the present inventors, and the water level adjustment unit 26 controls the water level in the drainage main unit 10, so that the ultrasonic cleaning area In , cleaning is performed by ultrasonic cleaning, and even if some dirt that is difficult to remove by ultrasonic cleaning remains in the drain main body 10, this dirt is left in the user cleaning area to facilitate cleaning by the user. 3, it is based on the new finding that dirt in the drainage body 10 of the drainage device 1 can be effectively and easily reduced, and the user's cleaning effort can be reduced.
According to the drainage device 1 according to the first embodiment of the present invention described above, the water level adjustment unit 26 adjusts the water level in the drainage main body 10 by the water flowing into the drainage main body 10 so that dirt floating on the water surface is discharged. It can be raised to an ultrasonic cleaning water level W2 higher than the sealing water level W0 at which the water adheres to the wall surface inside the main body 10 and tends to solidify. Therefore, ultrasonic cleaning can be performed in a state in which the vicinity of the sealing water level W0, to which dirt easily adheres, is submerged, and ultrasonic cleaning can be performed without the user manually cleaning the vicinity of the sealing water level W0, to which dirt easily adheres. can be washed with Further, for example, even if the sealing water level W0 in the drainage main body 10 is located at a position downstream of the mesh basket housing part 12 where it is difficult for the user to clean, the water level exceeds the vicinity of the sealing water level W0 where dirt tends to adhere. It can be cleaned by sonic cleaning, and the frequency and effort of cleaning the vicinity of the sealing water level W0 can be reduced.
Furthermore, according to the structure as described above, the water level in the drainage body 10 rises to the ultrasonic cleaning water level W2, which is higher than the sealing water level W0, due to the water flowing into the drainage body 10 from the water level adjusting section 26. Designed to be easy. At this time, the water level adjuster 26 is formed so that the ultrasonic cleaning water level W2 is positioned within the mesh basket housing portion 12 and below the entrance portion of the mesh basket housing portion 12 . In this way, when the water level in the drainage main body 10 is raised to the position in the mesh basket storage part 12, the water level is not raised to the inlet part 12a, which is the highest part of the mesh basket storage part 12. , the rise is stopped at a position below the entrance portion 12a of the mesh basket housing portion 12. As shown in FIG. As a result, when the water level rises and the water level drops after ultrasonic cleaning is performed, even if some dirt that is difficult to remove by ultrasonic cleaning remains in the drain main body 10, it will float on the water surface, for example. The mesh basket storage part allows the user to easily clean the range in which dirt adheres to the wall surface of the drain main body part 10 and remains on the wall surface, and the range in which dirt remains in this manner is suppressed. 12 can be controlled.
Therefore, according to this structure, the vicinity of the sealing water level W0 where dirt is likely to adhere and the portion downstream of the mesh basket housing portion 12 of the drainage body portion 10 that is difficult for the user to easily clean can be cleaned by ultrasonic cleaning. In addition, if some dirt that is difficult to remove by ultrasonic cleaning (for example, it floats on the water after ultrasonic cleaning) remains in the drainage body 10, the dirt will be removed from the wall surface of the drainage body 10. It is possible to suppress the range in which the dirt adheres and remains on the wall surface, and to control the range in which the dirt remains in the mesh basket storage section 12 that can be easily cleaned by the user.

If the ultrasonic cleaning water level W2 is positioned above the bottom of the mesh basket 18, the bottom of the mesh basket 18 is likely to be flooded, and the mesh basket 18 and the garbage collected in the mesh basket 18 will be above the water surface. Dirt that floats on the surface adheres. As a result, when discarding the garbage collected in the mesh basket 18 from the mesh basket 18, the debris may become difficult to separate from the mesh basket 18, and the user may find it difficult to clean the mesh basket 18.例文帳に追加
On the other hand, according to the drainage device 1 according to the first embodiment of the present invention, the water level adjusting unit 26 is set to the mesh basket 18 in which the ultrasonic cleaning water level W2 is arranged in the mesh basket storage part 12. It is formed so as to be positioned below the bottom of the . Therefore, since the bottom of the mesh basket 18 is less likely to be flooded, deterioration of the cleanability of the mesh basket 18 can be suppressed. Furthermore, the vicinity of the sealing water level W0 where dirt is likely to adhere and the portion downstream of the mesh basket storage portion 12 of the drainage body portion 10 that is difficult for the user to easily clean can be cleaned by ultrasonic cleaning. If some dirt that cannot be cleaned by sonic cleaning alone remains in the drainage body 10, the dirt adheres to the wall surface of the drainage body 10 and remains on the wall surface. It is controlled to a relatively narrow range on the lower side and the range in which dirt remains in this way is controlled to a portion below the bottom of the net basket 18 in the net basket storage part 12 which can be easily cleaned by the user. can.

Furthermore, according to the drainage device 1 according to the first embodiment of the present invention, the dirt trapping part 28 formed at the bottom of the mesh basket housing part 12 is provided, and the dirt trapping part 28 catches dirt when the water level drops. It is formed so as to easily adhere to the surface of the dirt trapping portion 28 . Therefore, at least some of the dirt that is difficult to remove by ultrasonic cleaning can adhere to the surface of the dirt trapping section 28 as the water level drops along the surface of the dirt trapping section 28 . Therefore, at least a part of the dirt can be made to adhere to the dirt trapping part 28 formed at the bottom of the net basket housing part 12, which is easy for the user to recognize the dirt and easy for the user to reach. Easy to clean.
In addition, according to this structure, the dirt trapping part 28 is formed at the bottom of the mesh basket storage part 12 and positioned below the ultrasonic cleaning water level W2, so the dirt adhering to the dirt trapping part 28 will be drained from the next time onwards. When the water level inside the main body 10 rises to near the ultrasonic cleaning water level W2, the cleaning is performed by ultrasonic cleaning. Therefore, the dirt trapping portion 28 to which dirt easily adheres can be automatically cleaned by ultrasonic cleaning, and the frequency and trouble of cleaning the dirt trapping portion 28 by the user can be reduced.

Furthermore, according to the drainage device 1 according to the first embodiment of the present invention, the water that has passed through the mesh basket 18 arranged above the dirt trapping section 28 forms a constricted flow toward the center of the mesh basket 18. Cheap. When such a flow flows down on the water surface from the center side, dirt floating on the water surface tends to be moved to the side wall side. In addition, dirt that has once moved toward the side wall tends to move along the side wall due to surface tension or the like, and is difficult to return to the central side. According to this structure, the dirt trapping part 28 has the edge part 34 extending inward from the side wall of the drain main body part 10, so that the dirt floating on the water surface moved to the side wall side adheres to the edge part 34. You can make it easier. Therefore, since the dirt trapping portion 28 has the edge portion 34, the dirt can be attached to the edge portion that is relatively easy for the user to clean, and the dirt flowing out to the downstream side of the dirt trapping portion 28 when the water level drops can be prevented. can be reduced. Therefore, it is possible to prevent dirt from remaining on the wall surface of the drainage body 10 on the downstream side of the dirt catcher 28 . As a result, dirt in the entire drainage device 1 can be efficiently reduced.

Furthermore, according to the drainage device 1 according to the first embodiment of the present invention, the mesh basket 18 is curved so that the bottom protrudes downward when the mesh basket 18 is placed in the mesh basket housing portion 12. ing. As a result, the mesh basket 18 protrudes downward at a position spaced apart from the side wall of the drainage body 10 . Therefore, the water that has passed through the mesh basket 18 is more likely to form a constricted flow toward the center of the mesh basket 18 . Therefore, such a flow flows down from the center side onto the water surface, so that the dirt floating on the water surface is easily moved to the side wall side. Therefore, more dirt can be made to adhere to the edge of the dirt trapping portion 28 formed at the bottom of the mesh basket housing portion 12, and the dirt flowing out to the downstream side of the dirt trapping portion 28 can be reduced. It is possible to further prevent stains from remaining on the wall surface of the drainage body 10 on the downstream side of the portion 28 . As a result, dirt in the entire drainage device 1 can be reduced more efficiently.

Furthermore, according to the drainage device 1 according to the first embodiment of the present invention, the dirt trapping portion 28 further includes the inner trapping portion 36 forming a plurality of openings inside the edge portion 34, so that the dirt trapping portion 36 floats on the water surface. dirt can further adhere to the inner trapping portion 36 . Therefore, more dirt can adhere to the dirt trapping portion 28 than when the dirt trapping portion 28 has only the edge portion 34, and the dirt flowing out to the downstream side of the dirt trapping portion 28 is reduced. Therefore, it is possible to further prevent dirt from remaining on the wall surface of the drainage body 10 on the downstream side of the dirt catcher 28 . As a result, dirt in the entire drainage device 1 can be further efficiently reduced. In addition, when the water level falls further below the dirt trapping part 28, the dirt remains floating on the water surface, so that the dirt adheres to the wall surface of the drainage body part 10 below the dirt trapping part 28 and remains. can be suppressed.
Furthermore, according to this structure, since the ultrasonic cleaning water level W2 is positioned above the dirt trapping section 28, the dirt adhering to the dirt trapping section 28 is removed from the water level inside the drainage main body 10 from the next time onwards. When the cleaning water level rises to the vicinity of the cleaning water level W2, the ultrasonic cleaning is performed more reliably. Therefore, the dirt trapping portion 28 to which dirt easily adheres can be automatically cleaned by ultrasonic cleaning, and the frequency and trouble of cleaning the dirt trapping portion 28 by the user can be reduced.

Furthermore, according to the drainage device 1 according to the first embodiment of the present invention, since the inclined portion 34a is formed so as to incline toward the inside, dirt such as dust that has flowed into the drainage device 1 is removed by the inclined portion 34a. It is possible to make it difficult for the dirt to stay on the edge 34, and it is possible to suppress the deterioration of the drainage performance due to the edge 34, and the ultrasonic cleaning water level W2 is positioned above the inclined part 34a, so that the dirt can be effectively attached to the inclined part 34a. can be done.

Furthermore, according to the drainage device 1 according to the first embodiment of the present invention, since the metal member is arranged on the inner wall surface of the drainage main body 10 at the sealing water level W0, the ultrasonic waves are easily reflected, and the sealing The ultrasonic cleaning performance at the water level W0 can be improved. In addition, by arranging the metal member on the inner wall surface, dirt containing oil can be easily removed from the portion where the metal member is arranged compared to the portion where the resin member is arranged. Therefore, for example, when ultrasonic cleaning is performed at the ultrasonic cleaning water level W2, the ultrasonic cleaning performance can be improved at the sealing water level W0 to which dirt is most likely to adhere.

Next, a drainage device according to a second embodiment of the present invention will be described with reference to FIG. 2nd Embodiment is an example which formed the drainage apparatus by what is called a bottle trap by this invention. 18 is a central cross-sectional view of a drainage device according to a second embodiment of the present invention, and FIG. 19 is a cross-sectional view along line XIX-XIX of FIG.

Since the drainage device 501 according to the second embodiment has a basic structure similar to that of the drainage device 1 according to the first embodiment described above, only the differences from the first embodiment of the second embodiment of the present invention will be described. , and similar parts are denoted by the same reference numerals in the drawings, and descriptions thereof are omitted. The operation (action) of the drainage device 501 according to the second embodiment of the present invention is the same as the operation (action) of the drainage system 2 according to the first embodiment, so the explanation is omitted.

The drain main body 510 is provided downstream of the sink 4 and includes a mesh basket storage portion 12 in which a mesh basket is stored, and a water seal forming portion provided downstream of the mesh basket storage portion 12 and forming a water seal. 514.
Hereinafter, in the description of the first embodiment of the present invention, the upstream side with respect to the main flow direction of water reaching the water level adjustment portion 526 is the front side, the side opposite to the upstream side is the rear side, and the water level adjustment portion 526 The right side is defined as the right side when viewed from the front, and the left side is defined as the left side when viewed from the front.

As shown in FIG. 18 , the inlet portion 12 a and the intermediate portion 12 b of the mesh basket housing portion 12 have a channel diameter larger than that of the sealing water forming portion 514 .

The water seal forming part 514 has a function of draining the water discharged to the sink 4 and storing a part of the water that has flowed thereinto to form a normal water seal at the seal water level W0.

The sealing water forming part 514 forms a trap-shaped flow path that forms a sealing water at the sealing water level W0. The water sealing forming portion 514 includes a connecting portion 514a connected to the outlet portion 12c of the mesh basket housing portion 12, and an ascending portion 514b, which is an ascending passage ascending obliquely upward toward the downstream side so as to form a drainage trap. , a top portion 514c that is a folded portion between the rising portion 514b and the descending portion 514d, and a descending portion 514d that is provided downstream of the ascending portion 514b and descending from the top portion 514c. . The connecting portion 514a forms a tubular descending flow path extending downward from the top portion 514c. Therefore, the sealing water forming portion 514 forms a trap-shaped flow path that folds upward from the connecting portion 514a extending downward toward the ascending portion 514b, and the top portion 514c defines the sealing water level W0. In this manner, the water seal forming portion 514 forms a so-called bottle trap. The descending portion 514 d extends substantially vertically downward and is connected to the drainage channel 8 . The sealing water forming part 514 forms a channel of a drainage trap as a channel on the side of the drainage channel 8, and the inner diameter of the channel is small, the shape of the channel is complicated, and the depth of the channel is large. By having any of the elements such as depth, or at least a combination of some of these elements, etc., compared to the mesh basket storage portion 12, it is difficult for the user to insert his or her fingers to clean.

In the drainage device 501, the water level in the drainage main body 510 is further lowered from the sealing water level W0 in the sealing water forming part 514 to the sealing water level W0 in the sealing water forming part 514 by the water flowing into the drainage main body 510. A water level adjusting portion 526, which is a flow rate adjusting portion formed so as to be easily raised to a high ultrasonic cleaning water level W2, and a dirt trapping portion 28 formed at the bottom of the mesh basket housing portion 512 are provided.

Next, the water level adjusting section of the drainage device according to the first embodiment of the present invention will be described with reference to FIGS. 18 and 19. FIG.
For example, when the water flowing into the drainage main body 510 is at a predetermined flow rate or more, the water level adjusting section 526 adjusts the water level inside the drainage main body 510 to the level within the sealing water forming section 514 due to the water flowing into the drainage main body 510. from the sealing water level W0 in the sealing water forming portion 514 to the ultrasonic cleaning water level W2 higher than the sealing water level W0 in the sealing water forming portion 514. The water level adjusting portion 526 is arranged in a sealing water forming portion 514 that forms a single flow path from the inlet portion (the inlet portion 12a) to the outlet portion (the connection portion with the drainage flow path 8) in the drainage body portion 510. Adjust the water level by The water level adjustment unit 526 adjusts the amount of water discharged to the downstream side when the water level in the drainage body 510 is between the sealing water level W0 and the ultrasonic cleaning water level W2. It is formed so as to be less than the amount of water discharged to the downstream side when reaching W2.

The water level adjusting portion 526 is formed on the top portion 514 c that is a sealing water level regulating portion that regulates the sealing water level of the drain trap of the sealing water forming portion 514 . More specifically, the water level adjusting portion 526 is formed to protrude upward from the top portion 514c. The water level adjusting portion 526 includes a wall 530 that narrows the flow path within the seal forming portion 514 . The wall 530 forms a narrowed portion that narrows the lower side of the flow path in the sealing water forming portion 514 . The wall 530 is formed to rise upward from the bottom surface of the top portion 514c of the flow path in the sealing water forming portion 514 when viewed from the front. The wall 530 is formed to rise obliquely rearward and upward from the bottom surface of the top portion 514c of the flow path in the sealing water forming portion 514 . The wall 530 is formed from the sealing water level W0 to near the ultrasonic cleaning water level W2. The inclination angle of the front surface 530a of the wall 530 is larger than the inclination angle of the bottom surface of the ascending portion 514b immediately before the top portion 514c. A rear surface 530b of wall 530 extends downward. Therefore, the wall 530 is formed in a triangular shape in cross section in the front-rear direction. Note that the wall 530 may be formed in a shape other than the triangular shape in the cross section in the front-rear direction. Note that, for example, the wall 530 may be formed by narrowing the wall itself of the water seal forming portion 514 inward and forming the wall 530 formed to rise upward from the top portion 514c.

As shown in FIG. 19, the wall 530 extends in the horizontal direction with respect to the main flow direction of the water reaching the water level adjusting portion 526, and the wall 530 is formed with a notch 532 extending downward from its upper end 530c. ing. The lateral width A1 of the notch 532 is substantially constant in the vertical direction. The lower portion of the notch 532 is formed by the top portion 514c. The notch 532 extends from the front surface 530a to the rear surface 530b in the front-rear direction.

The amount of water discharged from the water discharge portion 6b in a normal usage mode (the amount of water flowing into the drainage body 510 per unit time), the water that cannot pass through the notch 532 is the water level in the drainage body 510. , forming a flow that also exceeds the upper edge 530c of the wall 530 portion when the water level exceeds the upper edge 530c. The wall 530 limits the amount of drainage per unit time passing through the notch 532 when the water level is below the upper end 530c, and restricts the flow above the upper end 530c when the water level is above the upper end 530c. It forms a special weir that forms a The amount of drainage per unit time passing through the first area B1 of the notch 532 (the area cut out by the notch 32) (water discharge flow rate) is determined by the width A1 of the notch 532 and the height h1 of the water level (from the top 14c). determined by the actual height of the water level). In addition, the amount of water discharged per unit time passing through the second region B2 (water discharge flow rate) is determined by the width A2 of the channel of the sealing water forming portion 514 and the height h2 of the water level above the upper end 30c (the actual water level from the upper end 30c). height). The second region B2 is a region above the upper end 30c of the wall 30. As shown in FIG.

When the water level exceeds the upper end 530c, the amount of water spouted from the water spouting portion 6b (the inflow amount per unit time flowing into the drainage body portion 10) cannot pass through the first region B1 of the notch 532. Since the remaining water forms a flow over the upper end 530c of the wall 530 portion, the rise of the water level is suppressed.
When the water level exceeds the upper end 530c, the water level adjustment unit 526 controls the amount of water flowing into the drainage main body 510 per unit time, and the amount of water passing through the first region B1 of the notch 532 per unit time. A second amount of wastewater, which is the sum of the amount of wastewater passing through the second region B2 per unit time, is discharged. The inflow amount per unit time flowing into the drainage main body 510 is the same as the second drainage amount, which is the sum of the amount of drainage per unit time passing through the first region B1 and the amount of drainage per unit time passing through the second region B2. , the water level almost stops rising, and the water level reaches the ultrasonic cleaning water level W2.

The ultrasonic cleaning water level W2 is set to a height higher than the upper end 530c of the wall 530 and lower than the ceiling portion 514e of the top portion 514c of the sealing water forming portion 514. FIG. Thus, the ultrasonic cleaning water level W2 is defined by the relationship between the first area B1 and the second area B2.

The water level adjustment part 526 is formed so that the ultrasonic cleaning water level W2 is positioned within the mesh basket storage part 12 . In other words, the water level adjusting portion 526 may be formed so as to be positioned below the inlet portion 12 a of the mesh basket housing portion 12 . Further, the water level adjustment part 526 is formed so that the ultrasonic cleaning water level W2 is positioned below the bottom of the mesh basket 18 arranged in the mesh basket storage part 12 . Furthermore, the water level adjusting portion 526 may be formed so that the ultrasonic cleaning water level W2 is at a position equal to or higher than the dirt trapping portion 28 . Furthermore, the water level adjustment unit 526 is The ultrasonic cleaning water level W2 may be formed so as to be positioned above the inclined portion 34a. Also, as a modification, the water level adjusting section 526 can be formed by means different from the wall 530, such as an electrically operated electromagnetic valve, a flow path adjusting valve, or the like. At this time, the control device 24 closes the electromagnetic valve or the like to raise the water level in the sealing water forming portion 514 based on the fact that the control device 24 has determined that the water has started to be discharged, and the water level reaches the ultrasonic cleaning water level W2. It may be controlled to rise. Furthermore, for example, when the water level rises to the ultrasonic cleaning water level W2, the control device 24 performs control such as opening and closing the electromagnetic valve so that the water does not flow back to the sink 4 side. You may suppress a water level rise.

As a further modification, the drainage device 501 may be formed in a so-called one-trap structure. In this one trap, a water level adjusting portion is formed at the upper end of the drain pipe connected to the drain channel 8 and rising upward. A bowl-shaped body (cap) is arranged so as to cover the drainage pipeline and the water level adjusting section above, and a drainage trap is formed between the drainage pipeline and the bowl-shaped body. For example, the water level adjusting portion is formed by a recessed notch formed downward from the upper end of the drain pipe. The seal water level W0 is defined by the lower end of the recessed notch of the water level adjusting portion.

1 Drainage Device 2 Drainage System 3 Kitchen 4 Sink 4a Bottom Part 12 Mesh Basket Storage Part 12a Inlet Part 14 Water Seal Forming Part 18 Mesh Basket 22 Ultrasonic Oscillator 26 Water Level Adjusting Part 28 Inner Trapping Part 28 Trapping Part 30 Wall 34 Edge 34a Inclination Part 36 Inner capturing part 36a Opening 126 Water level adjusting part 130 Wall 132 Notch 226 Water level adjusting part 230 Wall 232 Notch 326 Water level adjusting part 330 Wall 332 Notch 426 Water level adjusting part 430 Wall 432 Notch 501 Drainage device 510 Drainage body 512 Net basket housing portion 514 Sealing water forming portion 526 Water level adjusting portion 530 Wall 532 Notch A1 Width A2 Width B1 First region B2 Second region W0 Sealing water level W2 Ultrasonic cleaning water level

Claims (7)

A drainage device provided at the bottom of a water receiver in a kitchen,
a net basket housing portion provided downstream of the water receiving portion and having a net basket disposed therein;
a body portion provided with a water seal forming portion that is provided downstream of the mesh basket housing portion and forms a water seal;
the mesh basket,
an ultrasonic oscillator that oscillates ultrasonic waves in the water in the main body;
Water flowing into the main body facilitates raising the water level in the main body from the sealing water level in the sealing water forming part to the ultrasonic cleaning water level higher than the sealing water level in the sealing water forming part. The water level adjusting part is formed so that the ultrasonic cleaning water level is positioned inside the mesh basket storage part and below the inlet of the mesh basket storage part. , and the water level adjustment unit ,
Further, a dirt catching part is provided at the bottom of the mesh basket housing part, and the dirt catching part is formed so that dirt is likely to adhere to the surface of the dirt catching part when the water level is lowered. A drainage device characterized by: 2. The water level adjustment unit according to claim 1, wherein the ultrasonic cleaning water level is positioned below the bottom of the mesh basket placed in the mesh basket storage unit. Drainage device. 3. A drainage device according to claim 1 or 2 , wherein the dirt catcher comprises an edge extending inwardly from a side wall of the body. 4. The drainage device according to claim 3 , wherein the mesh basket is curved so that the bottom thereof protrudes downward when the mesh basket is placed in the mesh basket storage portion. the dirt trap further comprising an inner trap defining a plurality of openings inside the rim;
5. The drainage device according to claim 3 , wherein the water level adjustment part is formed so that the ultrasonic cleaning water level is higher than the dirt trapping part. the rim comprises an inwardly downward slanted portion,
6. The drainage device according to any one of claims 3 to 5 , wherein the water level adjusting portion is formed so that the ultrasonic cleaning water level is positioned on the inclined portion. 7. The drainage system according to any one of claims 1 to 6 , wherein a metal member is arranged on the inner wall surface of the body portion at the sealing water level.

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