JP7330439B2 - Drainage device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a drainage device, and more particularly to a drainage device provided below a water receiver.

2. Description of the Related Art As a drainage device for draining water from the bottom surface of a sink to a sewage system, there is known one in which an ultrasonic wave oscillator is attached to a part of the drainage pipeline to have the function of cleaning the inside of the drainage pipeline. As such a drainage device, for example, Patent Literature 1 discloses a drainage device in which a pair of transducers are attached to a portion of a drainage pipe that hits a trap, and ultrasonic waves can be generated by the pair of transducers.

Further, in Patent Document 2, a metal layer is provided on the surface of a deodorant cylinder that forms a trap and a deodorant bowl that covers the deodorant cylinder, an ultrasonic oscillator is provided so as to be in contact with this metal layer, and an ultrasonic wave is generated by the ultrasonic oscillator. Disclosed is a drainage device that can generate sound waves to remove dust and slime.

U.S. Pat. No. 4,893,361 JP-A-2009-62781

However, in the drainage device described in Patent Document 1, it is difficult to transmit ultrasonic vibrations into the trap, so a sufficient cleaning effect cannot be obtained. On the other hand, in the drainage device described in Patent Document 2, since it is covered with a metal layer, the ultrasonic waves are reflected by the metal layer and diffused throughout the trap. However, it is difficult to coat the deodorant tube and the deodorant bowl that constitute the trap with a metal layer, and even if the deodorant tube and the deodorant bowl are partly covered, the manufacturability is low. Although it is conceivable to change the structure of the deodorant cylinder and the deodorant bowl so that the metal layer can be easily covered, in this case, the flexibility of the shape is reduced.

Therefore, the inventor of the present invention attaches a vibrating member to a communication hole formed in a flow path that forms a water seal in a drainage device, and attaches an ultrasonic oscillator to this vibrating member, thereby reducing productivity. We studied prevention and improvement of cleaning effect.

However, when a communication hole is formed in the channel forming the water seal and the vibration member is attached to the communication hole, the vibration of the vibration member is transmitted to the member holding the vibration member and the channel forming the water seal. and may lead to noise or failure. On the other hand, if the vibration of the vibrating member is weakened in order to suppress noise and failure due to the transmission of vibration, there is a problem that the ultrasonic cleaning inside the flow path cannot be performed sufficiently.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-described problems of the prior art, and suppresses the generation of noise and vibration caused by the vibration of the vibrating member being transmitted from the mounting surface portion to the water seal forming portion. The purpose is to provide a drainage system capable of

In order to solve the above-described problems, according to one embodiment of the present invention, there is provided a drainage device provided below a water receiving portion, which is provided downstream of the water receiving portion and has a flow path formed therein. a sealing water forming portion for forming a sealing water in the flow path, the sealing water forming portion being formed with a communication hole communicating between the inside and the outside of the sealing water forming portion; an ultrasonic oscillator for irradiating ultrasonic waves to the water in the sealing water forming part; The vibrating member is a planar portion that is positioned within the communicating hole in a state of being disposed within the communicating hole and constitutes a part of an inner wall that forms the flow path, and the ultrasonic oscillator is positioned within the planar portion. a first curved portion provided on the outer edge of the flat portion; and a mounting surface portion extending from the first curved portion in a direction different from the direction in which the flat portion spreads, wherein the The vibrating member is attached to the water seal forming portion at the attachment surface portion.
According to an embodiment of the present invention configured as described above, the vibrating member includes a flat portion that vibrates when the ultrasonic oscillator is attached, a first curved portion provided on the outer edge of the flat portion, and a first and a mounting surface portion that suppresses the transmission of vibration from the flat portion by extending from the curved portion in a direction different from the direction in which the flat portion spreads. As a result, the vibrating member has a vibrating flat portion, and the vibrating member is attached to the sealing water forming portion at the mounting surface portion while ensuring the vibration acting on the ultrasonic cleaning. It is possible to suppress the generation of noise and vibration by being transmitted to the water forming part.

According to one embodiment of the present invention, preferably the mounting surface portion comprises at least one second curved portion for bending said mounting surface portion in the widening direction of said planar portion.
According to one embodiment of the present invention configured as described above, the mounting surface portion includes at least one second curved portion that bends the mounting surface portion in the direction in which the flat portion expands. As a result, the mounting surface portion between the first curved portion and the second curved portion can have a shape that is difficult to deform. Therefore, it is possible to make the mounting surface part less likely to vibrate. Therefore, it is possible to further suppress the generation of noise and vibration due to the vibration of the vibrating member being transmitted from the mounting surface portion to the water seal forming portion.

According to one embodiment of the present invention, preferably, the water seal forming portion further includes a sealing member for sealing between the mounting surface portion and the water seal forming portion, and the seal member comprises the flat surface. It is arranged in the vicinity of the second curved portion, which is the furthest position from the part side.
According to one embodiment of the present invention configured as described above, the sealing member is arranged near the second curved portion at the farthest position from the flat portion side. As a result, the vibration transmitted to the seal member can be suppressed by positioning the seal member at a position relatively far from the flat portion side, and the position of the seal member is positioned near the farthest second curved portion. By doing so, the vibration transmitted to the seal member can be further suppressed. Therefore, it is possible to suppress the generation of noise and vibration due to transmission of the vibration of the vibrating member from the mounting surface portion to the sealing member via the seal member, and the vibration of the vibrating member reduces the reliability of the seal member. can be suppressed.

According to one embodiment of the present invention, preferably, the mounting surface portion includes the first curved portion, an end portion of the mounting surface portion on the first curved portion side, and an upper edge portion of the communication hole. It is attached to the water seal forming part in a spaced apart state.
According to the embodiment of the present invention configured as described above, the vibration from the flat portion that causes the vibration is transmitted from the first curved portion and the end portion of the mounting surface portion on the first curved portion side to the communication hole of the water seal forming portion. can be suppressed from being transmitted to the edge on the upper side of the , and the occurrence of noise and vibration can be further suppressed.

According to one embodiment of the present invention, the water seal forming portion preferably includes a first restricting portion that restricts movement of the mounting surface portion toward the inside of the water seal forming portion; a second restricting portion that restricts movement in the direction of the outside of the water formation portion, and the attachment is performed at a portion of the mounting surface portion farther from the second curved portion than the first restricting portion and the second restricting portion. One side that restricts the movement of the surface portion is provided with a cushioning member that dampens vibrations in a portion that contacts the mounting surface portion. One of the first restricting portion and the second restricting portion that restricts movement of the mounting surface portion at a portion farther from the second curved portion of the mounting surface portion is one of the first restricting portion and the second restricting portion. Compared to the other portion that restricts the movement of the mounting surface portion, the portion closer to the second curved portion is positioned farther from the second curved portion, which is less likely to vibrate. .
According to one embodiment of the present invention configured as described above, one of the first restricting portion and the second restricting portion that restricts movement of the mounting surface portion at a portion farther from the second curved portion contacts the mounting surface portion. Equipped with a cushioning member that softens vibrations. As a result, at a portion farther from the second curved portion, that is, at a portion more likely to vibrate than the second curved portion, the first restricting portion or the second restricting portion moves upward of the mounting surface portion or moves downward from the mounting surface portion. Even if the movement is restricted, the transmission of vibration to the restricting portion can be further softened, and noise and vibration caused by transmission of the vibration of the vibrating member to the water seal forming portion can be further suppressed.

According to one embodiment of the present invention, the water seal forming portion preferably includes an attachment mechanism for attaching the vibrating member to the water seal formation portion, and the attachment mechanism has a structure that prevents loosening due to vibration. I have.
According to one embodiment of the present invention configured as described above, since the mounting mechanism has a structure that prevents loosening due to vibration, the vibration of the vibrating member causes the vibration of the vibrating member to mount the vibrating member to the water seal forming portion. It is possible to prevent the mechanism from loosening and the vibrating member from coming off the water seal forming portion.

According to one embodiment of the present invention, preferably, the mounting mechanism is a first member cylindrically formed around the communication hole of the water seal forming portion, and the outer peripheral portion of the first member includes a longitudinal groove portion extending upward from the lower end portion of the first member, a lateral groove portion extending in the circumferential direction from the upper end portion of the longitudinal groove portion, and a raised portion having a raised bottom surface in the middle of the lateral groove portion. The first member and the second member are formed, the second member disposing the vibrating member between the second member and the first member, the second member comprising the and the second member having a protrusion that protrudes toward the outer peripheral portion of the first member, wherein the protrusion of the second member extends from the lower end of the longitudinal groove of the outer peripheral portion to the upper end thereof. and then moved in the circumferential direction from the upper end of the longitudinal groove along the lateral groove and disposed in the area beyond the protuberance, whereby the first member and the second 2 members are attached, and the vibrating member is attached to the water seal forming portion.
According to one embodiment of the present invention configured as described above, the first member and the second member are attached by arranging the protrusion of the second member at a position over the raised portion. Then, the vibrating member is attached to the water seal forming portion. At this time, since the protrusion of the second member is arranged in the region overcoming the raised portion in the lateral groove, even if the second member or the first member receives vibration, the protrusion of the second member It is difficult to get over the protuberance in the lateral groove and come off. As a result, it is possible to prevent the vibrating member from being detached from the water seal forming portion due to vibration by using the mounting mechanism for the first member and the second member having a relatively simple structure.

According to the present invention, it is possible to provide a drainage device capable of suppressing noise and vibration caused by transmission of vibration of the vibrating member from the mounting surface portion to the water seal forming portion.

1 is a front view of a drainage system provided with a drainage device according to a first embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1; FIG. 3 is an exploded perspective view of the drainage device of FIG. 2; 3 is a partially enlarged cross-sectional view showing an enlarged vicinity of a vibrating member of the drainage device of FIG. 2; FIG. FIG. 5 is a partially enlarged perspective view of the longitudinal grooves and the like of the first member and the protrusions and the like of the second member in a state before the second member of the attachment mechanism of the drainage device of FIG. 4 is attached to the first member; 6 is a partially enlarged cross-sectional view showing a state in which the protrusion of the second member of the mounting mechanism of FIG. 5 is positioned below the longitudinal groove of the first member, cut along the outer peripheral portion of the first member; FIG. 6 is a partially enlarged cross-sectional view showing a state in which the protrusion of the second member of the mounting mechanism of FIG. 5 is positioned at the upper end of the longitudinal groove of the first member, cut along the outer peripheral portion of the first member; FIG. FIG. 6 is a partially enlarged cross-sectional view showing a state in which the protrusion of the second member of the mounting mechanism of FIG. 5 is positioned within the fitting area beyond the protuberance in the lateral groove, cut along the outer peripheral portion of the first member; be. FIG. 5 is a schematic cross-sectional view showing a modification of the vibrating member of the drainage device according to the first embodiment of the present invention; FIG. 5 is a schematic cross-sectional view showing a further modification of the vibrating member of the drainage device according to the first embodiment of the present invention; FIG. 7 is a schematic cross-sectional view showing the structure of the vicinity of the vibrating member of the drainage device according to the second embodiment of the present 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 having a drainage device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view along line II-II of FIG.
As shown in FIGS. 1 and 2, a drainage system 2 equipped with a drainage device 1 is, for example, a drainage system installed in a kitchen or a washroom. A faucet device 6 which is a water discharge part for discharging water or hot water (hereinafter referred to as water) to the water, a drainage device 1 provided below the bottom portion 4a of the sink 4, and a drainage provided downstream of the drainage device 1. and a flow path 8 .

The sink 4 is formed to discharge water discharged from the faucet device 6 downstream. The sink 4 has a concave portion that opens upward, and a water collecting portion 4b is formed on the far side (right side in FIG. 2) of one lateral end side (right side in FIG. 1) of the bottom portion 4a of the sink 4. As shown in FIG. A bottom portion 4a of the sink 4 is inclined toward a water collecting portion 4b formed at one end portion in the horizontal direction on the far side. The water collecting portion 4b is formed so as to be recessed downward. The water collecting portion 4b has a substantially rectangular horizontal cross-sectional shape, and the horizontal cross-sectional area decreases downward.

The faucet device 6 is erected at the back of the sink 4. - 特許庁The 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 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 the 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 faucet device 6 further includes an operation lever 6d, which is a manual operation portion for starting water supply to the water seal forming member 10 by user's operation input. The faucet device 6 spouts the water supplied from the water or hot water supply pipe to the sink 4 from the water spouting portion 6b by twisting the operation lever 6d.

As shown in FIG. 2, a net basket 12 and a lid 14 are installed in order from the bottom of the water collecting portion 4b. The mesh basket 12 has a rectangular vessel shape and is formed with a large number of pores. The mesh basket 12 has its outer periphery supported by the edge of the water collecting portion 4b. The mesh basket 12 is detachably provided from the water collecting portion 4b. A lid 14 is also provided so as to be removable from the water collecting portion 4b. The lid 14 is attached to the top of the mesh basket 12 so that the mesh basket 12 is difficult to see from above. The lid 14 is attached with the square legs (not shown) of the lid 14 supported on the mesh basket 12, and collects small particles such as water and dust between the inlet at the upper end of the water collecting portion 4b. A hole (not shown) is formed through which the object flows. The top surface of the lid 14 is substantially flush with the bottom portion 4a of the sink 4. As shown in FIG.

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 drainage pipe (not shown) such as a sewage system on the downstream side.

Next, a drainage device according to a first embodiment of the present invention will be described with reference to FIGS. 2 to 5. FIG.
3 is an exploded perspective view of the drainage device of FIG. 2, FIG. 4 is a partially enlarged sectional view showing the vicinity of the vibrating member of the drainage device of FIG. 2, and FIG. 5 is the drainage device of FIG. 2 is a partially enlarged perspective view of the vertical grooves and the like of the first member and the projections and the like of the second member in a state before the second member of the mounting mechanism is attached to the first member, as seen from obliquely above. FIG.

The drainage device 1 is provided below the water receiver. The drainage device 1 includes a sealing water forming member 10 as a sealing water forming portion that forms a sealing water, an ultrasonic oscillator 20 that irradiates the water in the sealing water forming portion with ultrasonic waves, a control device 28, and a vibrating member 32. And prepare.

The water sealing member 10 is connected to the bottom portion 4a. First, the drainage device 1 includes a water sealing member 10 provided downstream of the bottom portion 4 a of the sink 4 . The water seal forming member 10 has a drainage channel 22 formed therein, and forms a water seal in the drainage channel 22 as will be described later. A portion of the water seal forming member 10 is formed by a water collecting portion 4b recessed downward from the bottom portion 4a. The water seal forming member 10 is a member made of non-metal such as resin in which a drainage channel 22 is formed. It should be noted that the water sealing member 10 does not necessarily need to be entirely made of resin, but the portion where the water seal normally exists is made of resin, and the upstream and/or downstream portions of this portion are made of metal. may be formed.

The bottom portions of the descending flow path 22a and the ascending flow path 22b of the sealing water forming member 10 (that is, portions facing the water surface of the sealing water with the sealing water interposed therebetween) communicate with each other so that the inside and outside of the sealing water forming member 10 are communicated. Circular communication holes 10a are formed when viewed from the direction of . A vibration member 32 and an ultrasonic oscillator 20 are installed in the communication hole 10a by an attachment mechanism 40, which will be described later. A rim 10b is formed above the communication hole 10a.

The drain channel 22 is connected to a descending channel 22a descending on the inlet side, an ascending channel 22b extending obliquely upward from the descending channel 22a, and connected to the drain channel 8, descending toward the downstream side. and a descending channel 22c. The water seal forming member 10 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 drainage channel 22 is S-shaped (trap-shaped), and the sealing water level W0 is defined by the top portion 22d forming the folded portion between the ascending channel 22b and the descending channel 22c. The top portion 22d is formed with a narrow channel with both side walls narrowed inward to a predetermined height, thereby forming a structure that facilitates raising the water level in the drainage channel 22 by supplying water.

The ultrasonic oscillator 20 is provided below the descending flow path 22a of the sealing member 10. As shown in FIG. The ultrasonic oscillator 20 is provided at the bottom of the sealing water forming member 10 and arranged to irradiate ultrasonic waves upward. The ultrasonic oscillator 20 is made of a circular plate-like member. The ultrasonic oscillation element 20 is provided so as to come into contact with a later-described flat portion 34 of the vibration member 32 by, for example, an adhesive or welding. The ultrasonic oscillation element 20 is made of, for example, piezoelectric ceramics or ferrite, and expands and contracts in the diameter direction due to cavitation when an AC voltage is applied. A pair of wires 30 extend from the ultrasonic oscillator 20 and are electrically connected to the controller 28 . The frequency of the ultrasonic oscillator 20 is about 20 kHz to 100 kHz.

The control device 28 incorporates a CPU, memory, etc., has a function of receiving a detection signal transmitted from the flow sensor 24, and controls the operation of the ultrasonic oscillator 26 based on a predetermined control program etc. stored in the memory. do. Power is supplied to the control device 28 from an external power source. The control device 28 controls the irradiation of ultrasonic waves by the ultrasonic oscillator 26 and the termination of the irradiation. The control device 28 has an automatic cleaning mode that automatically irradiates the ultrasonic oscillator 26 in response to detection of water by the flow rate sensor 24. In this automatic cleaning mode, water discharge from the faucet device 6 is started and superimposed. The start of sonic cleaning can be automatically interlocked.

Next, referring to FIGS. 3 and 4, the vibration member 32 of the drainage device according to the first embodiment of the present invention and the mounting structure of the vibration member 32 in the water sealing member 10 will be described.
The vibrating member 32 constitutes a part of the inner wall that forms the drainage channel 22 inside the water seal forming member 10 in a state of being arranged in the communication hole 10a.
The vibrating member 32 has a flat portion 34 that constitutes a part of the inner wall forming the drainage channel 22 inside the communicating hole 10a in a state of being arranged in the communicating hole 10a, and a first A curved portion 36 and a mounting surface portion 38 extending at least in a direction different from the direction in which the flat portion 34 extends from the first curved portion 36 are provided.

The plane portion 34 is formed in a circular flat plate shape. The plane portion 34 forms the bottom surfaces of the descending channel 22a and the ascending channel 22b. Further, as shown in FIG. 4, the ultrasonic oscillator 20 is attached to the outer surface of the flat portion 34 (outer to the drainage channel 22). This outer surface is the surface opposite to the surface that contacts the sealing water. The flat portion 34 is formed of a thin plate of a metal material such as stainless steel. The planar portion 34 forms a vibrating surface that vibrates in a direction perpendicular to the diametrical direction (for example, vertically) as the ultrasonic oscillator 20 expands and contracts in the diametrical direction. Therefore, the planar portion 34 vibrates together with the ultrasonic oscillator 20, thereby forming an ultrasonic oscillator that irradiates water with ultrasonic waves.

The first curved portion 36 is provided at an end portion of the outer periphery of the flat portion 34 . The first curved portion 36 is formed in an annular shape. The first curved portion 36 forms a curved portion that curves from the flat portion 34 in a direction different from that of the flat portion 34 . The first curved portion 36 bends from the plane portion 34 in a direction perpendicular to the plane portion 34 . The vibration transmitted from the flat portion 34 changes direction at the first curved portion 36 and is transmitted. At this time, the vibration at the first curved portion 36 and the portion closer to the mounting surface portion 38 than the first curved portion 36 is reduced more than the vibration transmitted from the flat portion 34 . At this time, since the first curved portion 36 causes the first surface portion 38a to stand vertically with respect to the flat portion 34, when the flat portion 34 vibrates in the vertical direction as a vibration surface, the first surface portion 38a mainly vibrates. However, the amplitude of the first surface portion 38a is small. Therefore, in the present embodiment, the configuration in which the first surface portion 38 a is erected in a different direction with respect to the flat portion 34 prevents the ultrasonic waves emitted from the ultrasonic oscillator 20 from being transmitted to the sealing member 52 . It functions as a vibration transmission suppressor to suppress. The first curved portion 36 is not limited to being bent from the plane portion 34 toward the first surface portion 38a, and may be curved.

The mounting surface portion 38 is formed of a piece of stainless steel that is continuous with the flat portion 34 . The mounting surface portion 38 extends downward (toward the outside of the water sealing member 10) from the first curved portion 36 in a direction substantially perpendicular to the plane portion 34 to form a cylindrical first surface portion 38a.
The mounting surface portion 38 includes the first curved portion 36, a first curved portion side end portion 38c of the mounting surface portion 38 on the first curved portion 36 side, and an edge portion on the upper side of the communication hole 10a of the water seal forming member 10. 10b are separated from each other, and attached to the water sealing member 10. As shown in FIG. A gap A1 is formed between the first curved portion 36 and the first curved portion side end portion 38c and the edge 10b. The gap A1 is formed within a range of 0.1 mm to 1.00.5 mm, for example approximately 0.2 mm.
As a modification, the mounting surface portion 38 is not limited to one sheet of stainless steel, and may be formed of a plurality of members. Moreover, the mounting surface portion 38 may be formed of a separate member from the flat portion 34 .

The mounting surface portion 38 further includes at least one second curved portion 38b that bends the mounting surface portion 38 . The second curved portion 38b at the end of the first surface portion 38a bends the mounting surface portion 38 in a direction in which the flat portion 34 widens, for example, radially outward. A plurality of second curved portions 38b may be provided on the mounting surface portion 38, and the bending direction of the second curved portions 38b can be changed. The second curved portion 38b is bent at a right angle in a direction parallel to the direction in which the flat portion 34 spreads. may be The second curved portion 38b is formed in an annular shape. The vibrating member 32 is attached to the water sealing member 10 at the attachment surface portion 38 .

The mounting surface portion 38 forms a second surface portion 38d extending from the second curved portion 38b in a direction in which the flat portion 34 spreads, for example, radially outward. The second surface portion 38d is annularly formed from the second curved portion 38b. The end of the second surface portion 38d, that is, the end of the mounting surface portion 38 is a free end.

Next, a mounting structure of the vibrating member 32 of the water sealing member 10 will be described with reference to FIGS. 4 and 5. FIG.
The seal forming member 10 includes an attachment mechanism 40 for attaching the vibrating member 32 to the seal forming member 10 in a state where the flat portion 34 of the vibrating member 32 is arranged in the communication hole 10a.
The mounting mechanism 40 includes a first member 42 cylindrically formed around the communication hole 10a of the water seal forming member 10, and a second member 42 mounted below the vibrating member 32 (on the outer side of the water seal forming member 10). 2 members 44 are provided. The first member 42 and the second member 44 are also made of resin.

The outer peripheral portion 42a of the first member 42 has a vertical groove portion 42c extending upward from the lower end portion 42b of the first member 42, a lateral groove portion 42d extending in the circumferential direction from the upper end portion of the vertical groove portion 42c, and a middle portion of the lateral groove portion 42d. A protruding portion 42e is formed in which the bottom surface of the intermediate portion of is protruded. The second member 44 is disposed so as to sandwich the vibration member 32 between the second member 44 and the first member 42, and the second member 44 is a protrusion projecting toward the outer peripheral portion 42a of the first member 42. 44a. Based on the configuration of the first member 42 and the second member 44, the protrusion 44a of the second member 44 moves from the lower end of the vertical groove 42c of the outer peripheral portion 42a toward the upper end, and then moves toward the upper end of the vertical groove 42c. , along the lateral groove portion 42d, and placed in the fitting area A over the raised portion 42e, the first member 42 and the second member 44 are attached, A vibrating member 32 is attached to the water seal forming member 10 . The structure in which the projecting portion 44a of the second member 44 is arranged in the fitting region A on the inner side of the raised portion 42e in the lateral groove portion 42d constitutes a structure that prevents loosening due to vibration of the mounting mechanism. The vertical grooves 42c and the like of the first member 42 are formed at a plurality of locations, for example, four locations, on the outer peripheral portion 42a of the first member 42, and the projections 44a of the second member 44 are aligned with the vertical grooves 42c and the like of the first member 42. It is formed at a plurality of locations, for example four locations, at corresponding positions. The longitudinal grooves 42c and the like of the first member 42 are arranged at substantially equal intervals on the outer peripheral portion 42a. The protrusions 44a of the second member 44 are also arranged at substantially equal intervals on the inner peripheral surface of the second member 44.

In this embodiment, the first member 42 is formed with a vertical groove portion 42c, a horizontal groove portion 42d, and a raised portion 42e, and the second member 44 is formed with a projection portion 44a. On the other hand, as a modification, the first member 42 may be formed with the protrusion 44a, and the second member 44 may be formed with the vertical groove 42c, the horizontal groove 42d, and the raised portion 42e.

Again in this embodiment, the water seal forming member 10 is further provided radially outward of the communication hole 10a, and extends inward of the water seal forming member 10 from the mounting surface portion 38 (from the inside of the communication hole 10a to the plane portion 34). A first restricting portion 46 that restricts movement in the direction toward the inside of the drainage flow path 22 facing (upward direction in the paper surface of FIG. 4), and a mounting surface portion 38 provided outside the communication hole 10a in the radial direction. A second water seal forming member that restricts movement in the outside direction (the direction opposite to the direction from the inside of the communication hole 10a to the inside of the drainage channel 22 facing the flat portion 34 (downward direction on the paper surface of FIG. 4)). and a regulating portion 48 .

The first restricting portion 46 is provided on the first member 42 . The first restricting portion 46 forms a tubular portion at the lower end of the first member 42 . The second restricting portion 48 is provided on the second member 44 . The second restricting portion 48 forms an annular protrusion inside the bottom portion of the second member 44 . Either of the first restricting portion 46 and the second restricting portion 48 may be arranged at a position closer to the second curved portion 38b. One of the first restricting portion 46 and the second restricting portion 48, which restricts the movement of the mounting surface portion 38 at a portion farther from the second curved portion 38b of the mounting surface portion 38, is provided with a buffering structure that dampens vibrations at a portion that contacts the mounting surface portion 38. A member 50 is provided. In this embodiment, the first restricting portion 46 has a cushioning member 50 at a portion that contacts the second surface portion 38b. The cushioning member 50 is formed in an annular shape. The buffer member 50 is made of an elastic member such as rubber.

The water seal forming member 10 further includes a seal member 52 for sealing between the mounting surface portion 38 and the water seal forming member 10 , and a position of the seal member 52 for sealing between the mounting surface portion 38 and the water seal forming member 10 . and a backup ring 54 that adjusts to a portion that is easy to move. The seal member 52 is formed in an annular shape. The seal member 52 is made of an elastic member such as an annular rubber or silicone resin. The seal member 52 has a diameter larger than the gap between the first surface portion 38a and the first member 42 and seals between the first surface portion 38a and the first member 42 . The inner diameter of the seal member 52 substantially matches the outer diameter of the first surface portion 38a. The seal member 52 is arranged near the second curved portion 38b at the farthest position when viewed along the mounting surface portion 38 from the flat portion 34 side. The vicinity of the second curved portion 38b includes, for example, the portion of the first surface portion 38a on the second curved portion 38b side, the portion of the second surface portion 38d on the second curved portion 38b side, and the second curved portion 38b.

Next, the fitting operation of the first member 42 and the second member 44 will be described with reference to FIGS. 5 to 8. FIG.
6 is a partially enlarged cross-sectional view showing a state in which the protrusion of the second member of the mounting mechanism of FIG. 5 is positioned below the longitudinal groove of the first member, cut along the outer peripheral portion of the first member; FIG. 7 is a partial enlargement showing a state in which the protrusion of the second member of the mounting mechanism of FIG. FIG. 8 is a cross-sectional view showing a state in which the protrusion of the second member of the mounting mechanism of FIG. It is a partially enlarged cross-sectional view cut in a cross section along.

As shown in FIG. 5, in a state before the second member 44 is attached to the first member 42, the first member 42 and the second member 44 are in separate states, and the attachment surface portion 38, that is, the vibration member 32 is also not fixed. Before attachment, the protrusion 44a of the second member 44 is positioned below the longitudinal groove 42c of the outer peripheral portion 42a of the first member 42. As shown in FIG.

Next, as shown in FIG. 6, the protrusion 44a of the second member 44 is inserted upward from the lower end of the vertical groove 42c of the outer peripheral portion 42a of the first member 42. As shown in FIG. At this time, the plurality of protrusions 44a are simultaneously inserted into the corresponding plurality of longitudinal grooves 42c. Since the diameter of the inner peripheral portion 44b of the second member 44 is only slightly larger than the diameter of the outer peripheral portion 42a of the first member 42, when the protrusion 44a of the second member 44 passes through the vertical groove 42c , the first member 42 is accommodated inside the second member 44 (fitted state).

Next, as shown in FIG. 7, when the protrusion 44a is moved to the upper end of the vertical groove 42c, the protrusion 44a moves in the circumferential direction along the horizontal groove 42d from the upper end of the vertical groove 42c. become able to.

Next, as shown in FIG. 8, the protrusion 44a is circumferentially moved along the lateral groove 42d from the upper end of the vertical groove 42c. At this time, the projecting portion 44a is moved over the protruding portion 42e and is arranged in the fitting area A on the far side of the lateral groove portion 42d that has passed over the protruding portion 42e. The lower surface of the protrusion 44a is supported by the outer peripheral portion 42a of the first member 42 when the protrusion 44a is positioned at the fitting position. Therefore, the second member 44 is attached so as not to fall off the first member 42 . Further, when the protrusion 44a is positioned in the fitting region A on the far side of the lateral groove 42d relative to the protrusion 42e, the protrusion 44a must be pushed back against the protrusion 42e in order to release the fitting. Unless it gets over, it cannot move to the upper end part side of the vertical groove part 42c. In this manner, the projection 44a is difficult to climb over the raised portion 42e, and the projection 44a is loosely fitted into the fitting area A. As shown in FIG. Therefore, even if the projecting portion 44a receives vibration, the projecting portion 44a is less likely to climb over the raised portion 42e, and the second member 44 is less likely to come off from the first member 42. As shown in FIG.

Next, operation of the drainage system 2 will be described.
Sealing water is stored in the sealing water forming member 10 in the standby state. The sealing water level W0 is the height of the top portion 22d of the sealing water forming member 10. As shown in FIG. Since the waste water flowing from the sink 4 may contain components such as detergent and oil, dirt and slime may adhere to the inside of the drain channel 22 in the water sealing member 10 . In particular, dirt and slime are likely to concentrate and adhere to the inner wall surface of the drainage channel 22 near the sealing water level. The term "near the sealing water level" as used herein refers to a position that moves up and down from the "sealing water level" due to ripples. Moreover, the water level in the drainage channel 22 does not necessarily have to be constant at the sealing water level W0, and a structure or mechanism that temporarily raises the water level in the drainage channel 22 may be provided.

Water is discharged from the faucet device 6 to the sink 4 when the operating lever 6d of the faucet device 6 is operated. The water discharged to the sink 4 flows toward the water collecting portion 4b and flows into the descending channel 22a. The water that has flowed in from the descending channel 22 a is supplied to the ascending channel 22 b of the drain channel 22 . As a result, the water level in the drainage channel 22 exceeds the height of the top portion 22 d of the water seal forming member 10 , and the water flows out from the top portion 22 d to the descending channel 22 c and is discharged to the drainage channel 8 .

Further, when the flow rate sensor 24 detects that the water faucet device 6 has started to supply water to the seal forming member 10 , the control device 28 operates the ultrasonic oscillator 20 . As a result, the ultrasonic oscillator 20 expands and contracts in the radial direction, vibrating the planar portion 34 in the vertical direction. The vibration of the plane portion 34 propagates through the water, and dirt and slime adhering to the portion lower than the water surface are removed.

When the operating lever 6d of the water faucet device 6 is operated to stop the spouting of water from the faucet device 6, the flow of water into the drainage channel 22 is also stopped. As a result, the outflow of water from the ascending flow path 22b to the descending flow path 22c is also stopped, and the sealing water is stored in the sealing water forming member 10. As shown in FIG. Further, when the flow rate sensor 24 detects that the faucet device 6 stops spouting water, the control device 28 stops the operation of the ultrasonic oscillator 20 .

Next, the effects of the above-described first embodiment of the present invention will be described.
According to this embodiment, the vibrating member 32 includes a flat portion 34 that vibrates when the ultrasonic oscillator 20 is attached, a first curved portion 36 provided on the outer edge of the flat portion 34, and and a mounting surface portion 38 that suppresses the transmission of vibration from the flat portion 34 by extending in a direction different from the direction in which the flat portion 34 spreads. . As a result, the vibrating member 32 is provided with the vibrating flat portion 34, and the vibrating member 32 is attached to the water seal forming member 10 at the mounting surface portion 38 while securing the vibration acting on the ultrasonic cleaning. is transmitted from the mounting surface portion 38 to the water seal forming member 10, thereby suppressing the generation of noise and vibration.

Further, according to this embodiment, the mounting surface portion 38 includes at least one second curved portion 38b that bends the mounting surface portion 38 in the direction in which the flat portion 34 widens. As a result, the attachment surface portion 38 between the first curved portion 36 and the second curved portion 38b can have a shape that is difficult to deform. Therefore, it is possible to make the mounting surface portion 38 less likely to vibrate. Therefore, it is possible to further suppress the generation of noise and vibration due to the vibration of the vibrating member 32 being transmitted from the mounting surface portion 38 to the seal forming member 10 .

Further, according to the present embodiment, the sealing member 52 is arranged near the second curved portion 38b at the farthest position from the flat portion 34 side. As a result, since the seal member 52 is positioned relatively far from the flat portion 34 side, vibration transmitted to the seal member 52 can be suppressed, and the position of the seal member 52 is located farthest from the second curved portion. Vibration transmitted to the seal member 52 can be further suppressed by being positioned in the vicinity of 38b. Therefore, the vibration of the vibrating member 32 can be suppressed from being transmitted from the mounting surface portion 38 to the seal member 10 via the seal member 52 , thereby suppressing the generation of noise and vibration. A decrease in reliability can be suppressed.

Further, according to the present embodiment, the vibration from the plane portion 34 that causes vibration is transmitted from the first curved portion 36 and the end portion of the mounting surface portion 38 on the first curved portion 36 side to above the communicating hole of the water seal forming member 10 . The transmission to the side edge 10b can be suppressed, and the generation of noise and vibration can be further suppressed.

One of the first restricting portion 46 and the second restricting portion 48 that restricts movement of the mounting surface portion 38 at a portion farther from the second curved portion 38b of the mounting surface portion 38 is one of the first restricting portion 46 and the second restricting portion 48. Of these, the portion closer to the second curved portion 38b is located farther from the second curved portion 38b, which is less susceptible to vibration than the other portion that restricts the movement of the mounting surface portion 38, so that the vibration of the vibrating member 32 is transmitted to a relatively large extent. There is a risk that
According to the present embodiment, one of the first restricting portion 46 and the second restricting portion 48 that restricts the movement of the mounting surface portion 38 at a portion farther from the second curved portion 38 b vibrates at a portion that contacts the mounting surface portion 38 . It has a cushioning member 50 that softens the As a result, even if the vibration of the vibrating member 32 is relatively largely transmitted to the portion of the mounting surface portion 38 that is farther from the second curved portion 38b, the vibration to the first restricting portion 46 or the second restricting portion 48 will not be transmitted. The transmission can be further softened, and noise and vibration caused by transmission of the vibration of the vibrating member 32 to the water seal forming member 10 can be further suppressed.

Further, according to this embodiment, since the mounting mechanism 40 has a structure that prevents loosening due to vibration, the mounting mechanism 40 that mounts the vibration member 32 to the water sealing member 10 by vibration of the vibration member 32 is Loosening and detachment of the vibrating member 32 from the water sealing member 10 can be prevented.

Further, according to the present embodiment, the protrusion 44a of the second member 44 is disposed at a position over the protruding portion 42e, so that the first member 42 and the second member 44 are attached. A vibrating member 32 is attached to the water seal forming member 10 . At this time, since the protrusion 44a of the second member 44 is arranged in the area over the raised portion 42e in the lateral groove 42d, even if the second member 44 or the first member 42 receives vibration, the The projecting portion 44a of the second member 44 is less likely to get over the raised portion 42e in the lateral groove portion 42d and come off. As a result, it is possible to prevent the vibrating member 32 from coming off from the water sealing member 10 due to vibration using the attachment mechanism 40 for the first member 42 and the second member 44 having a relatively simple structure.

In this embodiment, the mounting surface portion 38 of the vibrating member 32 has the second curved portion 38b, but as shown in FIG. The surface portion 38 may not have the second curved portion 38b. That is, the vibrating member 32 may include only the flat portion 34 , the first curved portion 36 , and the first surface portion 38 a of the mounting surface portion 38 . At this time, the vibrating member 32 is attached to the water seal forming member 10 so that the first surface portion 38 a of the attachment surface portion 38 restricts vertical and horizontal movement. At this time, the first surface portion 38 a forms a surface perpendicular to the plane portion 34 . As a modification, the first surface portion 38a may be inclined at an acute angle with respect to the flat portion 34, and may be arranged so that the lower end portion of the first surface portion 38a tapers toward the center of the flat portion 34. Alternatively, the lower end of the first surface portion 38a may be arranged so as to widen in the direction in which the flat portion 34 spreads. In FIG. 9, the seal member 52 is omitted in order to simplify the description of the shape of the vibrating member 32. As shown in FIG. The water seal forming member 10 is also shown in a simplified manner. Therefore, the mounting structure between the second surface portion 38d and the water sealing member 10 may be constructed by another method.

Further, in the present embodiment, the first surface portion 38 a of the mounting surface portion 38 extends from the first curved portion 36 toward the outside of the water seal forming member 10 with respect to the flat portion 34 of the vibrating member 32 . On the other hand, as shown in FIG. 10, the vibrating member 32 is not limited to such a shape. It may extend toward the inner side of the forming member 10 . At this time, the vibrating member 32 is attached to the water seal forming member 10 at a second surface portion 38d extending from the second curved portion 38b in a direction in which the flat portion 34 expands, for example, radially outward. Also, the ultrasonic oscillator 20 is attached to the outer surface of the flat portion 34 (outer to the drainage channel 22). In this manner, the vibrating member 32 may form the drainage channel 22 in the hat-shaped inner region. In FIG. 10, the illustration of the seal member 52 is omitted in order to simplify the description of the shape of the vibration member 32. As shown in FIG. The water seal forming member 10 is also shown in a simplified manner. Therefore, the mounting structure between the second surface portion 38d and the water sealing member 10 may be constructed by another method.

Next, referring to FIG. 11, a drainage system having a drainage device according to a second embodiment of the invention will be described. The second embodiment is an example in which the vibrating member of the drainage device according to the first embodiment of the present invention has a different shape.
FIG. 11 is a schematic cross-sectional view showing the structure near the vibrating member of the drainage device according to the second embodiment of the present invention.

Since the drainage system 102 according to the second embodiment is similar in basic structure to the drainage system 2 according to the first embodiment described above, only the differences of the second embodiment of the present invention from the first embodiment 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 system 102 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.

In the drainage device 101 of the drainage system 102, the seal forming member 10 is provided at the bottom of the descending flow path 22a and the ascending flow path 22b of the seal forming member 110 (that is, the portion facing the water surface of the seal water with the seal water therebetween). A circular communication hole 110a is formed when viewed from the communication direction so as to communicate the inside and the outside. A vibration member 132 and an ultrasonic oscillator 20 are installed in the communication hole 110a by an attachment mechanism 128, which will be described later.

The vibrating member 132 constitutes part of the inner wall that forms the drainage channel 22 inside the water seal forming member 110 in a state of being arranged in the communication hole 110a. The vibrating member 132 includes a flat portion 34 that constitutes a part of the inner wall forming the drainage channel 22 inside the communicating hole 110a in a state of being arranged in the communicating hole 10a, and a first It has a curved portion 36 and a mounting surface portion 138 extending at least in a direction different from the direction in which the planar portion 34 spreads from the first curved portion 36 .

The mounting surface portion 138 is formed of a piece of stainless steel that is continuous with the flat portion 34 . The mounting surface portion 138 extends downward (to the outside of the water sealing member 110) from the first curved portion 36 in a direction substantially perpendicular to the plane portion 34, and forms a cylindrical first surface portion 38a. The mounting surface portion 138 is configured such that the first curved portion 36 and the first curved portion-side end portion 38c of the mounting surface portion 38 on the first curved portion 36 side are separated from the edge 10b of the water seal forming member 10, and the water seal is formed. Attached to forming member 110 . A gap A1 is formed between the first curved portion 36 and the first curved portion side end portion 38c and the edge 10b. The gap A1 is formed within the range of 0.1 mm to 0.5 mm, for example approximately 0.2 mm.

The mounting surface portion 138 includes at least one second curved portion 38b that bends the mounting surface portion 138 . In this embodiment, the mounting surface portion 138 includes three second curved portions 38b that bend the mounting surface portion 138. As shown in FIG. The second curved portion 38b at the end of the first surface portion 38a bends the mounting surface portion 138 in a direction in which the flat portion 34 widens, for example, radially outward. A plurality of second curved portions 38b may be provided on the mounting surface portion 138, and the bending direction of the second curved portions 38b can be changed. The second curved portion 38b is bent at a right angle in a direction parallel to the direction in which the flat portion 34 spreads. may be The second curved portion 38b is formed in an annular shape. The vibrating member 132 is attached to the water seal forming member 110 at the attachment surface portion 138 .

The mounting surface portion 138 forms a second surface portion 38d extending from the second curved portion 38b in a direction in which the flat portion 34 spreads, for example, radially outward. The second surface portion 38d is annularly formed from the second curved portion 38b. A second curved portion 38b is further provided at the end portion of the second surface portion 38d in the widening direction. This second second curved portion 38 b bends the mounting surface portion 138 toward the inside of the water seal forming member 110 . The second second curved portion 38b is the second closest second curved portion 38b when viewed from the first curved portion 36 side.

The mounting surface portion 138 further forms a third surface portion 38e extending from the second curved portion 38b toward the inner side of the water seal forming member 110. As shown in FIG. The third surface portion 38e is cylindrical and extends substantially parallel to the first surface portion 38a. A second curved portion 38b is further provided at the inner end portion of the water seal forming member 110 of the third surface portion 38e. The third second curved portion 38b bends the mounting surface portion 138 in the direction in which the flat portion 34 widens. The third second curved portion 38b is the third closest (farthest) second curved portion 38b when viewed from the first curved portion 36 side.

The mounting surface portion 138 forms a fourth surface portion 38f extending from the second curved portion 38b in the direction in which the flat portion 34 spreads. The fourth surface portion 38f is annularly formed from the second curved portion 38b.

Next, the mounting structure of the vibrating member 132 of the water seal forming member 110 will be described with reference to FIG. The seal forming member 110 has an attachment mechanism 140 for attaching the vibrating member 132 to the seal forming member 110 in a state where the flat portion 34 of the vibrating member 132 is arranged in the communication hole 110a. The mounting mechanism 140 includes a first member 142 cylindrically formed around the communication hole 110a of the water seal forming member 110, and a second member 142 mounted above the vibrating member 132 (inner side of the water seal forming member 110). and two members 144 .

The mounting structure of the first member 142 and the second member 144 in the second embodiment can be formed in the same manner as the mounting structure of the first member 42 and the second member 44 in the first embodiment, and the description is omitted. . In addition, since the mounting structure of the first member 142 and the second member 144 in the second embodiment makes it more difficult for the vibration from the vibrating member 132 to be transmitted to the first member 142 and the second member 144, other Screw connection or the like may be used.

The water seal forming member 110 is further provided with a first opening that regulates the movement of the mounting surface portion 138 toward the inside of the water seal forming member (the direction from the inside of the communication hole 110a toward the inside of the drainage channel 22 facing the flat portion 34). A restricting portion 146 is provided radially outwardly of the communicating hole 110a and restricts movement of the mounting surface portion 138 in the direction of the outside of the water seal forming member (the outward direction toward the communicating hole 110a from the inside of the communicating hole 110a). 2 regulating portion 148 . The first restricting portion 146 is provided on the second member 144 . The first restricting portion 146 forms a tubular portion at the lower end of the second member 144 . The second restricting portion 148 is provided on the first member 142 . The second restricting portion 148 forms a tubular protrusion at the top of the first member 142 . One of the first restricting portion 146 and the second restricting portion 148 that restricts the movement of the mounting surface portion 138 at a portion farther from the third second curved portion 38 b of the mounting surface portion 138 is vibrated in the portion that contacts the mounting surface portion 138 . It has a cushioning member 50 that softens the In this embodiment, the second restricting portion 148 has a cushioning member 50 at a portion that contacts the fourth surface portion 38f.

The water seal forming member 110 further includes a seal member 52 that seals between the mounting surface portion 138 and the water seal forming member 110 , and a position of the seal member 52 that seals between the mounting surface portion 138 and the water seal forming member 110 . and a backup ring 54 that adjusts to a portion that is easy to move. The seal member 52 has a diameter larger than the gap between the third surface portion 38 e and the first member 142 and seals between the first surface portion 38 a and the first member 142 . The outer diameter of the seal member 52 substantially matches the inner diameter of the communication hole 110 a , and the inner diameter of the seal member 52 substantially matches the mounting surface portion 138 . The seal member 52 is arranged near the second curved portion 38b at the furthest position when viewed along the mounting surface portion 138 from the flat portion 34 side. The vicinity of the second curved portion 38b is, for example, the portion of the third surface portion 38e on the side of the second curved portion 38b, the portion of the fourth surface portion 38f on the side of the second curved portion 38b, and the second curved portion 38b.

Next, the effects of the above-described second embodiment of the present invention will be described.
According to this embodiment, the vibrating member 132 includes the flat portion 34 that vibrates when the ultrasonic oscillator 20 is attached, the first curved portion 36 provided on the outer edge of the flat portion 34 , and the vibration from the first curved portion 36 . and a mounting surface portion 138 that suppresses the transmission of vibration from the flat portion 34 by extending in a direction different from the direction in which the flat portion 34 spreads. . As a result, the vibrating member 132 is provided with the vibrating flat portion 34, and the vibrating member 132 is attached to the water seal forming member 110 at the mounting surface portion 138 while securing the vibration acting on the ultrasonic cleaning. is transmitted from the mounting surface portion 138 to the water seal forming member 110, thereby suppressing the generation of noise and vibration.

Further, according to this embodiment, the mounting surface portion 138 includes at least one second curved portion 38b that bends the mounting surface portion 138 in the direction in which the flat portion 34 spreads. As a result, the attachment surface portion 138 between the first curved portion 36 and the second curved portion 38b can have a shape that is difficult to deform. Therefore, it is possible to make the mounting surface portion 138 difficult to vibrate. Therefore, it is possible to further suppress the generation of noise and vibration due to transmission of the vibration of the vibrating member 132 from the mounting surface portion 138 to the seal forming member 110 .

Further, according to the present embodiment, the sealing member 52 is arranged near the second curved portion 38b at the farthest position from the flat portion 34 side. As a result, since the seal member 52 is positioned relatively far from the flat portion 34 side, vibration transmitted to the seal member 52 can be suppressed, and the position of the seal member 52 is located farthest from the second curved portion. Vibration transmitted to the seal member 52 can be further suppressed by being positioned in the vicinity of 38b. Therefore, the vibration of the vibrating member 32 can be suppressed from being transmitted from the mounting surface portion 138 to the seal member 110 via the seal member 52, thereby suppressing the generation of noise and vibration. A decrease in reliability can be suppressed.

1 Drainage Device 4 Sink 10 Water Seal Forming Member 10a Communicating Hole 10b Rim 20 Ultrasonic Oscillating Element 32 Vibrating Member 34 Plane Section 36 First Curved Section 38 Mounting Surface Section 38b Second Curved Section 40 Mounting Mechanism 42 First Member 42a Peripheral Section 42b Lower end portion 42c Vertical groove portion 42d Lateral groove portion 42e Protruding portion 44 Second member 44a Projection portion 46 First restricting portion 48 Second restricting portion 50 Cushioning member 52 Sealing member 101 Drainage device 110 Seal forming member 110a Communication hole 110b Rim 128 Mounting mechanism 132 vibration member 138 mounting surface portion 140 mounting mechanism 142 first member 144 second member 146 first restricting portion 148 second restricting portion

Claims (7)

A drainage device provided below the water receiving part,
A water seal forming portion provided downstream of the water receiving portion, having a channel formed therein and forming a seal water in the channel, wherein the water seal forming portion includes inside and outside of the water seal forming portion. the sealing water forming portion formed with a communication hole communicating with the
an ultrasonic oscillator for irradiating ultrasonic waves to the water in the sealing water forming part;
a vibrating member that constitutes a part of an inner wall that forms the flow path when placed in the communication hole,
The vibration member is
A planar portion positioned in the communicating hole and constituting a part of an inner wall forming the flow path in a state of being arranged in the communicating hole, wherein the ultrasonic oscillator extends outside the planar portion. the planar portion attached to;
a first curved portion provided on the outer edge of the flat portion;
a mounting surface portion extending from the first curved portion in a direction different from the direction in which the flat portion spreads,
A drainage device, wherein the vibrating member is attached to the water seal forming portion at the attachment surface portion. 2. The drainage device according to claim 1, wherein the mounting surface portion includes at least one second curved portion that bends the mounting surface portion toward the widening direction of the flat portion. further comprising a sealing member for sealing between the mounting surface portion and the water seal forming portion;
3. The drainage device according to claim 2, wherein the sealing member is arranged near the second curved portion farthest from the flat portion. The attachment surface portion is attached to the water seal forming portion in a state in which the first curved portion and the end portion of the attachment surface portion on the first curved portion side are separated from the upper edge portion of the communication hole. 4. A drainage system according to claim 2 or 3, wherein The water seal forming portion includes a first restricting portion that restricts movement of the mounting surface portion toward the inside of the water seal forming portion;
a second restricting portion that restricts movement of the mounting surface portion toward the outside of the water seal forming portion;
One of the first restricting portion and the second restricting portion, which restricts the movement of the mounting surface portion at a portion farther from the second curved portion of the mounting surface portion, has a buffering portion that is in contact with the mounting surface portion for damping vibration. 5. A drainage device as claimed in any one of claims 2 to 4, comprising a member. 6. The water seal forming section according to any one of claims 1 to 5, wherein the water seal forming section includes an attachment mechanism for attaching the vibrating member to the water seal formation section, and the attachment mechanism includes a structure for preventing loosening due to vibration. 1. The drainage device according to item 1. The above mounting mechanism is
a first member cylindrically formed around the communication hole of the water seal forming portion, the outer peripheral portion of the first member having a vertical groove portion extending upward from a lower end portion of the first member; the first member having a lateral groove portion extending in a circumferential direction from an upper end portion of the vertical groove portion, and a protruding portion having a protruding bottom surface in the middle of the lateral groove portion;
A second member, wherein the vibration member is disposed between the second member and the first member, and the second member extends toward the outer peripheral portion of the first member. the second member comprising a protruding protrusion,
After the protrusion of the second member is moved from the lower end of the vertical groove toward the upper end of the outer peripheral portion, it is moved in the circumferential direction along the lateral groove from the upper end of the vertical groove. , wherein the vibrating member is attached to the water sealing forming portion by placing the first member and the second member in an attached state by being disposed in the area over the raised portion. 7. The drainage device according to 6.

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