JP5948625B2 - Drainage equipment - Google Patents

Description

  The present invention relates to a drainage device suitable for application to a sink equipped with a sink.

  Usually, a drainage device such as a sink forms a drainage recess that is recessed from the bottom of a water receiving tank such as a sink, and retains sealed water at the bottom by an outer cylinder and an inner cylinder below the drainage recess. Place the drain trap, connect the drain recess and the drain trap with a connecting member, let the drain from the water receiving tank flow into the drain recess, and then remove the drain trap from the drain outlet at the bottom of the drain recess. It is trying to discharge after that.

FIG. 10 shows an example of a conventionally known drainage device.
This example is an example of a sink drainage device of a sink, in which 200 is a sink and 202 is its bottom.
Reference numeral 204 denotes a drainage bowl as a drainage recess that is partially recessed downward from the bottom 202 of the sink 200. A drainage trap 206 is disposed below the drainage bowl 204.
The drain trap 206 has an outer cylinder 208 and an inner cylinder 210, and the outer cylinder 208 and the inner cylinder 210 hold a sealed water 212 at the lower part, and the sealed water 212 from the drain pipe 214 to the sink 200 side. Prevent backflow of odors to

An opening 216 is provided in the lower part of the outer cylinder 208, and the opening 216 is closed with a cap 218.
When a small object such as a ring is accidentally dropped into the drain trap 206 from the sink 200, the cap 218 is removed and the opening 216 is opened so that it can be taken out of the drain trap 206.

The drain trap 206 is connected to and attached to the drain bowl 204 by a pair of connecting members 220 and 222.
More specifically, a male screw is provided on the outer peripheral surface of the connecting member 220 and a female screw is provided on the inner peripheral surface of the connecting member 222, which are screw-coupled. The connecting members 220 and 222 are attached to the drain bowl 204 so that the radially inward flange sections 228 at the lower end of the drain bowl 204 are sandwiched from both upper and lower sides by the radially outward flange sections 224 and 226 provided in the It has been.

  The inner cylinder 210 is inserted into the inside of one connection member 220 downward from above, and the hook portion 230 at the upper end is hooked to the stepped portion of the connection member 220, so that the inner tube 210 is connected to the connection member 220. It is assembled to. That is, the inner cylinder 210 is connected to the drain bowl 204 through the connection member 220.

  Further, the upper end portion of the outer cylinder 208 is fitted into the fitting portion 232 of the other connecting member 222 in an internally fitted state, and the radially outward flange portions formed on each of the outer cylinders 208 are sandwiched in an overlapping state. The clip 234 is assembled to the connection member 222. That is, the outer cylinder 208 is connected to the drain bowl 204 through the connection member 222.

  In this drainage device, the drainage from the sink 200 flows into the drainage bowl 204, then flows into the drainage trap 206 from the drainage port 236 at the bottom of the drainage bowl 204, which is formed at the upper end opening of the inner cylinder 210. The water is discharged to the outside through the drain pipe 214 through the second lateral drainage port 238 provided in the cylinder 208.

On the inner surface of the drainage recess such as the drainage bowl 204, there is a tendency to cause slime due to accumulation of grown fungi, dead bodies, metabolites thereof, and the like.
Such a state where dirt such as slime and other oils adheres is unhygienic and causes a bad odor.
Therefore, it is desirable for the drainage device to have a function of cleaning the inner surface of the drainage recess and keeping it always clean.

Conventionally, the thing disclosed by the following patent document 1 is well-known as a drainage apparatus provided with the washing | cleaning function.
Patent Document 1 discloses an invention about a “swirl drain port”, in which an impeller is provided in a state of rotating integrally with a lower portion of a hair catcher inside a recess for drainage that accommodates a hair catcher. It is disclosed that a swirl water flow is generated by rotating an impeller by drainage flowing into the water, and cleaning is performed using the swirl water flow.

However, what is disclosed in this Patent Document 1 is to wash and remove the soap residue adhering to the hair catcher. The hair catcher is used as an attachment body and the impeller is attached to the hair catcher in an integrally rotated state. Then, it does not disclose the mounting structure of the impeller when it does not have a hair catcher.
In addition, since the one disclosed in Patent Document 1 rotates the impeller by the flow of drainage in the drain recess, the rotational force of the impeller is weak, and thus there is a problem that the cleaning power is weak.

JP 2007-198130 A

In the background of the above circumstances, the present invention is to install an impeller for cleaning a drain recess by generating a cleaning water flow in the drain recess and detachable and easily installed without particularly modifying the conventional structure. The purpose of the present invention is to provide a drainage device having a drain trap having an outer cylinder and an inner cylinder below the drain recess.
Another object of the present invention is to provide a drainage device that can rotate an impeller with a strong rotational force in a drainage recess and sufficiently clean the drainage recess.

Thus, according to the first aspect of the present invention, the concave portion for drainage is formed so as to be recessed downward from the bottom portion of the water receiving tank, and is located below the concave portion for drainage and sealed to the lower portion by the outer cylinder and the inner cylinder. A drainage trap for holding water is connected to the drainage recess by a connecting member, and after the drainage from the water receiving tank is allowed to flow into the drainage recess, the drainage port is provided at the bottom of the drainage recess. In a drainage device that discharges through a drain trap, an impeller that has a rotating blade that rotates around a rotating shaft and generates a washing water flow by drainage in the drain recess by rotation of the rotating blade is provided via the rotating shaft. By installing in the inner cylinder, the impeller is detachably installed in a state where the rotary blade is located in the drainage recess, and the impeller is configured to remove the drainage in the drainage recess. der which the force flow is driven to rotate in a separate external power , On the side of the impeller are each other in the driven-side magnet provided integrally rotating state with said impeller,該被dynamic side magnets are driven-side magnet and the magnetic coupling, the vane by the rotation of the drive side magnets The vehicle is driven to rotate.

According to a second aspect of the present invention, in the first aspect , the driven magnet is provided integrally with the impeller on the upper side of the drain trap, and the driving magnet is accommodated in the magnet housing. It is arranged at the same height as the driven magnet.

According to a third aspect of the present invention, in the second aspect , the driven-side magnet and the driving-side magnet form a ring shape, and the driving-side magnet surrounds the outer periphery of the driven-side magnet to form a concentric double ring. It is arrange | positioned in the state to carry out.

According to a fourth aspect of the present invention, in the second aspect , the driven-side magnet and the driving-side magnet form a ring shape, and the driving-side magnet includes an outer peripheral surface of the driving-side magnet and an outer peripheral surface of the driven-side magnet. Are arranged in a lateral position on the outer side of the outer peripheral surface of the driven magnet in a state of being opposed to each other in the radial direction.

According to a fifth aspect of the present invention, in any one of the second to fourth aspects, the drive-side magnet is integrally rotated with a water turbine that is rotated by the force of water flow in the flow path, and the magnet housing is formed in the water turbine housing. It is provided.

According to a sixth aspect of the present invention, the drive-side magnet according to the fourth aspect is provided in a water turbine housing that forms the magnet housing in a state of being integrally rotated with a water turbine that rotates by the force of water flow in the flow path.
In addition, a ring-shaped relay magnet that relays the transmission of magnetic force from the drive-side magnet to the driven-side magnet is concentric between the turbine housing and the driven-side magnet so as to surround the outer periphery of the driven-side magnet. It is characterized by being interposed in a state of forming a double ring .

Effects and effects of the invention

  As described above, the present invention has an impeller that has a rotating blade that rotates around a rotating shaft and that generates a cleaning water flow by drainage in the drainage recess by the rotation of the rotating blade. By setting the state, the impeller is detachably installed in a state where the rotary blade is located in the drainage recess.

  In the present invention, the inner cylinder of the drain trap is used as an assembly member, and the impeller is assembled thereto via a rotating shaft so that the impeller can be easily and easily attached and detached in a state where the rotary vane is located in the drain recess. A car can be installed.

  In this case, the rotating shaft may be provided in an integrally rotating state on the impeller side, and the rotating shaft may be rotatably assembled to the inner cylinder, or the rotating shaft may be provided on the inner cylinder side. In this case, the impeller may be assembled rotatably with respect to the rotation shaft.

  According to the present invention, for example, the rotation shaft extends from the inner cylinder side, and the impeller is provided with an assembly portion with the rotation shaft, or the rotation shaft extends from the impeller side. Just by providing an assembly part with the rotating shaft on the inner cylinder side, or by providing an assembly part with the rotating shaft that is separate from both the impeller and the inner cylinder. The impeller can be easily installed with a simple structure.

  Moreover, since the inner cylinder is originally provided in the drain trap, other peripheral structures are particularly modified by slightly changing the structure of the inner cylinder or by replacing the inner cylinder with a new one. The impeller can be installed without any problems.

In the present invention, the impeller is constitutes so as to rotate driven by a separate external power from the waste water stream force drainage in the recess Contact Ku.
By doing in this way, an impeller can be rotated with a strong rotational force, and thereby it becomes possible to generate a washing water flow vigorously and wash the inside of the drainage recess with high efficiency by the washing water flow.

In the present invention, a driven magnet is provided in an integrally rotating state on the impeller side, the driven magnet is magnetically coupled with the driving magnet, and the impeller is driven to rotate by the rotation of the driving magnet. All clauses No way.
In this way, the driving force from the external power can be applied to the impeller without contact with the impeller, and various powers can be easily used as the external power.
For example, the drive-side magnet can be rotated by electrical force, can be rotated by mechanical force, or the drive-side magnet can be rotated by the force of the flow of water flowing through the flow path. it can.

In this case, the driven-side magnet is provided in an integrally rotating state with the impeller on the upper side of the drain trap, and the driving-side magnet is accommodated in the magnet housing and is disposed at the same height as the driven-side magnet. (Claim 2 ).
In this way, the driving force due to the rotation of the driving side magnet can be directly applied to the impeller without passing through the mechanical driving force transmission mechanism, and the mechanism for rotating the impeller is simplified. be able to.
In addition, since it is not necessary to provide a mechanical transmission mechanism for transmitting the driving force generated by the rotation of the drive side magnet, the problem of having to greatly change the structure of the drain trap to provide a mechanical transmission mechanism is avoided. it can.

In this case, the driven-side magnet and the driving-side magnet can be formed in a ring shape, and the driving-side magnet can be arranged in a state of surrounding the outer periphery of the driven-side magnet to form a concentric double ring. 3 ).
In this way, the drive-side magnet and the driven-side magnet can be opposed in the radial direction over the entire circumference, and the magnetic coupling force between the drive-side magnet and the driven-side magnet can be made high in strength, The driving force by the driving side magnet can be effectively applied to the driven side magnet, that is, the impeller, and the impeller can be rotated with a strong rotational force.

On the other hand, in the present invention, the driven side magnet and the driving side magnet are formed in a ring shape, and the driving side magnet is placed in the state where the outer peripheral surface of the driving side magnet and the outer peripheral surface of the driven side magnet are opposed to each other in the radial direction. It can arrange | position in the lateral position outside an outer peripheral surface (Claim 4 ).
If it does in this way, construction of a drive side magnet and a magnet housing which accommodates this can be performed easily.

For example, when the drive-side magnet is arranged in a state in which a concentric double ring is formed around the outer periphery of the driven-side magnet according to claim 3 , it is driven unless the drain trap is removed from the drain recess. The side magnet and the magnet housing that accommodates the side magnet cannot be attached or detached. However, according to claim 4 , the drive side magnet and the magnet housing are arranged to avoid such a problem. It is possible to perform installation work without removing the drain trap, or to perform maintenance work after removing the drain trap.

In any one of Claims 2-4 , a drive side magnet can be provided in the water turbine housing which makes a magnet housing in the state of integral rotation with the water wheel rotated by the power of the water flow of a channel. 5 ).

However, in this case, the drive-side magnet comes into contact with the water flow in the flow path. Therefore, a magnet that hardly generates rust by water, typically a ferrite magnet, must be used as the drive side magnet.
On the other hand, the driven-side magnet is also in contact with the drainage, and therefore the driven-side magnet must also use a ferrite magnet or the like in the same manner as the magnet that is not easily rusted by water, that is, the driving-side magnet.

However, the ferrite magnet is not necessarily sufficient in terms of magnetic force. Therefore, according to the fourth aspect, the driven-side magnet is brought into a state where the outer peripheral surface of the driven-side magnet and the outer peripheral surface of the driven-side magnet are opposed to each other in the radial direction. When arranged in a lateral position on the outer side of the outer peripheral surface, the transmission of the magnetic force from the driving side magnet to the driven side magnet is only performed through a part of the circumferential direction of the outer peripheral portion located closest to each other. Therefore, the driving force transmitted from the driving side magnet to the driven side magnet has to be weak.
In this case, it may be difficult to rotate the driven magnet, that is, the impeller with a sufficiently strong force by the driving side magnet.

6. In this case, between the drive-side magnet and the driven side magnet, a ring-shaped relay magnet which relays the transmission of force to the driven side magnet from the drive side magnets, surrounds the outer periphery of the driven side magnet concentrically It is designed to be interposed in a state where a double ring is formed.

In this case, since the relay magnet can be arranged in a state where it does not come into contact with water, it is possible to use a rare earth magnet such as a neodymium magnet having a strong magnetic force although rust is easily generated by water.
And by doing so, the driving side magnet and the relay magnet can be coupled with a magnetically strong coupling force, and similarly, the relay magnet and the driven magnet can be coupled with a magnetically strong coupling force. Can do.

Therefore, even when the drive-side magnet is arranged in a lateral position outside the outer peripheral surface of the driven-side magnet according to the fourth aspect, the driving force by the drive-side magnet can be sufficiently applied to the driven-side magnet, that is, the impeller. It is possible to rotate the impeller with a strong rotational force.
According to the sixth aspect of the present invention, it is possible to satisfactorily install and remove the water turbine housing that houses the drive side magnet without removing the drain trap from the drain recess.

In the present invention, the drive-side member including the drive-side magnet that rotationally drives the impeller is unitized, and the drive-side unit is disposed outside the drain recess and drain trap, and the drain recess and drain trap outer cylinder. Can be interposed between the two.
Moreover, the drive side unit can be attached and installed in a state of being sandwiched between the drain recess and the outer cylinder.
By doing in this way, a drive side unit can be attached and constructed easily using the structure of the conventional drainage device, or it can be removed and maintenance work can be performed.

It is the figure which showed the sink and periphery part containing the drainage device which is one Embodiment of this invention. It is sectional drawing of the drainage device of FIG. It is sectional drawing which expanded and showed the drainage bowl of FIG. 2, and its peripheral part. It is the figure which decomposed | disassembled and showed the principal part of the drainage device of the embodiment. It is sectional drawing of other embodiment of this invention. It is sectional drawing which expanded and showed the drainage bowl of FIG. 5, and its peripheral part. It is a perspective view of the water turbine unit of the embodiment. It is sectional drawing of other embodiment of this invention. It is sectional drawing which expanded and showed the drainage bowl of FIG. 8, and its peripheral part. It is the figure which showed an example of the conventionally well-known drainage apparatus.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes a sink (water receiving tank) provided in a sink (not shown), and the sink 10 is provided with a sink tap (hereinafter simply referred to as a faucet) 12. Here, the water tap 12 is a single lever type mixing water tap.
The faucet 12 includes a faucet body 14 that rises from the top surface of the sink 10, and a water discharge pipe 16 that extends from the faucet body 14 toward the center of the sink 10. A water discharge port 18 is provided at the tip of the water discharge pipe 16.
The faucet body 14 is provided with a mixing unit for mixing water and hot water.

Reference numeral 20 denotes a lever handle. By operating the lever handle 20, water discharge from the water discharge port 18, water stoppage, water flow adjustment, and water discharge temperature adjustment are performed.
A water supply pipe 22 for supplying water and hot water is connected to the water tap 12 (only one water supply pipe 22 is shown in the figure, and the other water supply pipe 22 is not shown).
Reference numeral 24 denotes a pipe that forms a water supply passage for guiding water from the mixing portion of the faucet 12 to the water outlet 18, and a water turbine unit 25 described later is connected to the pipe 24.

  In the figure, 24A is an inlet side pipe through which water from the mixing valve flows into the water turbine unit 25, and 24B is an outlet side pipe that guides the water that has flowed out from the water turbine unit 25 to the water outlet 18 side. Is connected to a turbine housing 26 described later of the turbine unit 25.

In FIG. 2, reference numeral 32 denotes a drainage bowl as a drainage recess configured to be partially recessed downward from the bottom of the sink 10.
A drain trap 34 is provided below the drain bowl 32.

The drain trap 34 has an outer cylinder 36 and an inner cylinder 46 inserted downward from the upper side inside the outer cylinder 36, and the outer cylinder 36 and the inner cylinder 46 hold a sealed water 48 at the lower part. .
The drain trap 34 holds the sealed water 48 to prevent odor backflow from the drain pipe 50 side into the sink 10.
An opening 42 is provided at the bottom of the outer cylinder 36, and the opening 42 is closed with a cap 44.
The cap 44 is detachably screwed into a cylindrical portion around the opening 42.

A drainage port (second drainage port) 58 is provided laterally at the upper portion of the outer cylinder 36, and a cylindrical connection pipe 52 projects from the drainage port 58.
An end of the drain pipe 50 is fitted in the connection pipe 52 in an internally fitted state, and the connection pipe 52 and the drain pipe 50 sandwich the flange portion 54 formed in each state in a superposed state. The clip 56 is connected to the removal state.
Here, the upper end and the lower end of the inner cylinder 46 are open, and the drainage from the sink 10 flows into the inner cylinder 46 from the upper end opening of the inner cylinder 46 and flows down, and the lower end opening. Then, it flows out between the inner cylinder 46 and the outer cylinder 36, flows out from the lateral drainage port 58 of the outer cylinder 36 to the drainage pipe 50, and is discharged outside.

As shown in FIGS. 2 and 3, the drain bowl 32 has a circular peripheral wall portion 59 and a bottom portion 60.
An opening is formed at the center of the bottom 60.
The drain bowl 32 is provided with a radially inward annular flange portion 64 at the edge of the opening.

Reference numerals 66 and 68 denote connection members for connecting the drain trap 34 disposed on the lower side of the drain bowl 32 to the drain bowl 32, both of which have a circular ring shape.
The connection members 66 and 68 are formed by connecting the male screw 74 on the outer peripheral surface of the connection member 66 with the female screw 76 on the inner peripheral surface of the connection member 68, and a flange portion 70 radially outward of the connection member 66. 68 and the upper end of the cylindrical rising portion 72 rising from the flange portion 130, the upper and lower sides of the flange portion 64 of the drainage bowl 32 together with the water turbine housing 26 of the water turbine unit 25 via a sandwiching member 71 having an L-shaped cross section. It is being fixed to the flange part 64 of the drainage bowl 32 in the state pinched | interposed from.

Then, the upper end portion of the inner cylinder 46 is fitted in the inner fitting state with respect to the connection member 66, and the latching portion 78 at the upper end of the inner cylinder 46 is latched to the stepped portion 80 on the inner surface of the connection member 66. As a result, the inner cylinder 46 is attached to and held by the drainage bowl 32 via the connection member 66.
The inner cylinder 46 is attached to and held by the connection member 66 by being inserted downward with respect to the connection member 66 from the upper side in the drawing.

  On the other hand, the outer cylinder 36 is fitted with the upper end portion of the outer cylinder 36 in the inner fitting state with respect to the cylindrical fitting portion 82 of the connecting member 68, and the flange portion 84 provided on each of the outer cylinders 36 is overlapped with each other. Is attached to and held by the connection member 68.

  An arm 88 extends radially inward from the upper end portion of the inner cylinder 46, and a cylindrical shaft support portion 90 that fits and supports a lower portion of a rotating shaft 102 to be described later is supported at the inner end portion. The rotating shaft 102 is provided as an assembly portion.

  In this embodiment, one connecting member 68 has a shape in which a cylindrical rising portion 72 is added to the corresponding connecting member 222 in FIG. 10, and the other connecting member 66 has the shape shown in FIG. The corresponding connecting member 224 has a shape in which a cylindrical tubular portion 92 having a predetermined length in the axial direction is added between the flange portion 70 and the male screw portion 74.

An opening inside the upper end of the connection member 66 forms a drain outlet 62 at the bottom of the drain bowl 32.
In addition, an accommodation portion 94 that accommodates most of the impeller 96 is formed inside the cylindrical portion 92 below the drain port 62.
The impeller 96, most of which is accommodated in the accommodating portion 94, has a rotating blade 98 that rotates around the rotation shaft 102 at the upper portion thereof, and the rotating blade 98 is disposed inside the drainage bowl 32, specifically, a drainage bowl. It is located on the upper side of the edge around the drain outlet 62 in the bottom part 60 of 32.
Here, as shown in FIG. 4, the rotary blade 98 has a shape extending linearly in the radial direction around the rotation shaft 102.

A driven side magnet 104 having a circular ring shape is provided in a state of rotating integrally with the impeller 96 at a lower portion and an outer peripheral portion of the impeller 96.
Further, a fitting hole (assembly part) 100 penetrating in the axial direction is provided inside the cylindrical part 101 at the center of the impeller 96, and the impeller 96 is connected to the shaft described above in the fitting hole 100. The rotary shaft 102 extending upward from the support portion 90 is assembled in a fitted state so as to be rotatable. A drainage opening 103 is provided outside the cylindrical portion 101.
Here, the impeller 96 is rotatably supported from below by a shaft support portion 90 provided at the upper end portion of the inner cylinder 46 via a sliding ring 106 fitted to the rotation shaft 102.

In this embodiment, the water turbine unit 25 constitutes the drive side unit 35 together with the clamping member 71 described above.
The water wheel housing 26 of the water wheel unit 25 has a donut shape and includes a main body 108 and a lid 110 that closes the upper end and the inner peripheral end of the main body 108 as shown in FIG. The lid 110 is fastened to the main body 108 with a screw tool 112.
A ring-shaped water wheel 114 is disposed inside the water wheel housing 26, and the water wheel 114 is rotatably supported by the main body 108 via a ring-shaped sliding member 116.

The water wheel 114 has blades 118 on the outer peripheral portion, and a drive side magnet 120 having a circular ring shape is provided in an integrally rotating state on the inner peripheral side.
The drive-side magnet 120 is arranged in a state of surrounding the outer periphery of the driven-side magnet 104 on the impeller 96 side to form a concentric double ring.
That is, here, the driven-side magnet 104 and the driving-side magnet 120 are respectively arranged in a positional relationship facing the radial direction over the entire circumference.

The driving-side magnet 120 and the driven-side magnet 104 are magnetically coupled, and a driving force generated by the rotation of the driving-side magnet 120 is applied to the driven-side magnet 104, that is, the impeller 96.
In this embodiment, since the driving side magnet 120 and the driven side magnet 104 are both in contact with water, a ferrite magnet that hardly causes rust is used.

In this embodiment, the water turbine unit 25 is constituted by the water wheel housing 26 and the water wheel 114, the driving magnet 120, the sliding member 116 and the like disposed therein.
A drive side unit 35 including the water turbine unit 25 and the clamping member 71 is interposed between the drain bowl 32 and the outer cylinder 36 of the drain trap 34 outside the drain bowl 32 and the drain trap 34. Specifically, here, the drive side unit 35 is attached so as to be sandwiched between the drain bowl 32 and the outer cylinder 36 of the drain trap 34.
The impeller 96, the driven side magnet 104, the rotating shaft 102, the sliding ring 106, and the shaft support portion 90 constitute an impeller unit 99, and the impeller unit 99 and the drive side unit 35 constitute a cleaning unit. Configure the whole.

The water turbine housing 26 is provided with an inlet 122 and an outlet 124, and water from the inlet side pipe 24 </ b> A shown in FIG. 1 flows into the turbine housing 26 from the inlet 122 and flows therethrough. Is applied to the blade 118 of the water wheel 114 in a direction in which the water wheel 114 is rotated in a certain direction, and is rotated.
Then, the water that has passed through the water wheel 114 flows out from the outlet 124.
The outflowed water is guided to the water outlet 18 of the faucet 12 through the outlet pipe 24B, and is discharged into the sink 10 from the water outlet 18. That is, water is supplied into the sink 10 as water from the faucet 12.

In this example, the driving side magnet 120 is rotated by the rotation of the water wheel 114, and the driving force by the rotation is transmitted to the driven side magnet 104 magnetically coupled to the driving side magnet 120. It is forced to rotate by the driving force of external power.
That is, the rotary blade 98 is forcibly rotated inside the drain bowl 32.

  In this embodiment, when the user operates the lever handle 20 of the faucet 12 to discharge water from the water outlet 18 and perform water work, the water discharged from the water outlet 18, that is, the supplied water is received by the sink 10. Then, the water is drained from the bottom of the sink 10 into the drain bowl 32.

At this time, the water (drainage) flowing through the bottom of the sink 10 flows down along the inner surface of the peripheral wall 59 of the drainage bowl 32 and reaches the bottom 60 of the drainage bowl 32.
The drainage that has reached the bottom portion 60 flows toward the drainage port 62 along the bottom portion 60, and the flow tries to flow in the centripetal direction from the entire circumference around the drainage port 62 toward the drainage port 62 (in that case). In addition, since the flow of the drainage is a centripetal flow from the entire circumference around the drainage port 62 toward the drainage port 62, the flow does not act as a force for rotating the impeller 96 in a specific direction).

At this time, the impeller 96 is already forcibly rotated by the water wheel 114 rotating by the force of the flow of the water supply flow path in the pipe 24, specifically receiving the driving force from the driving side magnet 120 rotating together with the water wheel 114. ing.
Therefore, when the drainage in the drainage bowl 32 is about to flow into the drainage port 62 along the bottom portion 60, the rotating blade 98 of the impeller 96 that is rotated by forced driving strikes the rotation direction against the flow of the drainage. , It becomes a resistance of the flow of the drainage toward the drainage port 62 and prevents and suppresses the inflow to the drainage port 62.

The impeller 96 not only becomes a resistance to the flow by the rotary blade 98 but also acts on the flow of the drainage by centrifugal force due to its rotation to push the drainage back in the direction away from the drainage port 62, thereby draining the drainage. The drainage is retained around the mouth 62.
In addition, the impeller 96 generates a washing water flow such as a vortex while exerting a stirring action by applying a centrifugal force to the staying water by the rotary blade 98.

  The generated cleaning water stream strikes the inner surface of the drain bowl 32, removes the bacteria and the nutrients, oils and other dirt before reaching the slime, and cleans the inner surface of the drain bowl 32. Flows downward through the opening 103 for use.

In the present embodiment, as shown in FIG. 4, the impeller 96 is assembled to the inner cylinder 46 of the drain trap 34 via the rotary shaft 102, so that the rotary vane 98 can be easily positioned in the drain bowl 32. An impeller 96 can be installed.
When necessary, the impeller 96 can be easily removed or replaced from the installation position.

Also, the drain trap 34 is disconnected from the drain bowl 32 by the pair of connection members 66 and 68, and the drive side unit 35 including the water turbine unit 25 is fitted into one of the connection members 66 in an externally fitted state. By simply connecting the connecting members 66 and 68 to each other and connecting the drain trap 34 to the drain bowl 32, the drive side unit 35 can be easily assembled at a predetermined position, and the workability is also good.
Accordingly, when the maintenance of the water turbine unit 25 is required, the water turbine unit 25 can be easily removed and the maintenance work can be performed by disconnecting the drain trap 34 from the drain bowl 32 by the connecting members 66 and 68.

The water turbine unit is attached to the lower side of the drain trap 34, and the rotating shaft 102 of the impeller 96 is extended long downward, and the driven magnet 104 is integrally rotated at the lower end portion of the rotating shaft 102, The driven-side magnet 104 and the drive-side magnet inside the water turbine unit are magnetically coupled, so that the rotation of the drive-side magnet, that is, the driving force generated by the rotation of the water wheel is applied to the impeller 96 to rotate it. Although it is conceivable, the drainage device becomes long in the vertical direction by doing so.
If the drainage device is long in this way, there arises a problem that it interferes with the drawer at the bottom of the cabinet.
However, according to the present embodiment, the drainage device can be prevented from being elongated vertically by the water turbine unit 25, and the drainage device can be configured compactly in the vertical direction.

In addition, when the water turbine unit is attached to the lower side of the cap 44 in a coupled state with the cap 44, for example, when a small item such as a ring is dropped in the drain trap 36, the water turbine unit is first removed from the cap 44. Two operations such as removing the cap 44 and opening the opening 42 at the lower end of the outer cylinder 36 are required.
However, if the water turbine unit and the cap 44 are integrated, it is possible to remove the cap 44 together with the water turbine unit in one operation. However, when the water wheel unit is removed and the maintenance work is performed, the cap 44 is also removed. In this case, the sealing water 48 in the drain trap 34 is discharged all at once from the opening 42, causing troubles such as wet hands of the operator with dirty water.
However, according to the present embodiment, since the water turbine unit 25 is separated from the cap 44 and attached to the upper side of the drain trap 34, such a problem can be solved.

In the present embodiment, the driving force due to the rotation of the driving magnet 120 can be directly applied to the impeller 96 without passing through the mechanical driving force transmission mechanism, and the mechanism for rotating the impeller 96 can be simplified. Can be
In addition, since it is not necessary to provide a mechanical transmission mechanism for transmitting the driving force generated by the rotation of the drive-side magnet 120, there is a problem in that the structure of the drain trap 34 must be greatly changed in order to provide a mechanical transmission mechanism. Can also be avoided.

  In the present embodiment, the driven magnet 104 and the driving magnet 120 are formed in a ring shape, and the driving magnet 120 is arranged in a state of surrounding the outer periphery of the driven magnet 104 to form a concentric double ring. Therefore, the drive-side magnet 120 and the driven-side magnet 104 can be opposed to each other in the radial direction over the entire circumference, and the magnetic coupling force between the drive-side magnet 120 and the driven-side magnet 104 can be made high strength. A driving force by the driving side magnet 120 can be effectively applied to the driven side magnet 104, that is, the impeller 96, and the impeller 96 can be rotated with a strong rotational force.

In the above embodiment, the magnetic coupling force between the driving side magnet 120 and the driven side magnet 104 can be increased, while the drain trap 34 has not to be removed from the drain bowl 32 in order to detach the turbine unit 25. There is a difficulty that must not be.
The example of FIGS. 5-7 is the example which aimed at the solution.
As shown in the figure, in this example, the bottom portion of the drainage bowl 32 is partially recessed downward, and the recess 126 forms the drainage port 62 and the accommodating portion 94 of the drainage bowl 32, and the accommodating portion. The most part of the impeller 96 is accommodated in 94, and the upper rotary blade 98 is positioned in the drainage bowl 32.
The drain trap 34 is connected using connection members 66 and 68 having the same shape as the connection members 220 and 222 shown in FIG. 10 with the inward flange 64 at the lower end of the recess 126 as a connection partner. ing.

In this embodiment, the outer peripheral surface of the circular ring-shaped drive-side magnet 120 provided in a state of rotating integrally with the water turbine 114 on the outer peripheral portion of the water wheel 114 is the outer peripheral surface of the driven-side magnet 104 that also forms a circular ring shape. The drive-side magnet 120 and the water turbine housing 26 are arranged in a lateral position outside the outer peripheral surface of the driven-side magnet 104 so as to face each other in the radial direction.
In addition, the point that the drive side magnet 120 is located at the same height as the driven side magnet 104 is the same as in the first embodiment.

In this embodiment, the water wheel 114 is provided in the water wheel housing 26 so as to rotate around the rotation shaft 126.
In addition, the point by which the turbine housing 26 is comprised by the main-body part 108 and the lid | cover 110 which closes the opening is the same as that of the said embodiment. However, here, the water wheel 114 and the water wheel housing 26 do not form a donut shape, and the form of the main body 108 and the lid 110 of the water wheel housing 26 is different from that of the above embodiment.

In this embodiment, the water turbine unit 25 itself forms the drive side unit 35. As shown in FIG. 7, an elastic hook portion 128 having a curved tip portion and extending from the water turbine housing 26 extends.
In this embodiment, the water turbine housing 26 is detachably attached to the drainage bowl 32 by hooking the hook portion 128 into the recessed portion 126 of the drainage bowl 32 in an elastic fitting state.
A fixing hole 131 is provided at the tip of the curved portion of the hook portion 128, and a thick portion is provided by an appropriate means on the recessed portion 126 side. The tip portion of the hook portion 128 is connected to the thick portion. It is also possible to fix the fixing holes 131 with screws or the like.
Alternatively, as shown in FIG. 7B, a plate-like sandwiched portion 144 is provided at the lower end of the hook portion 128 in the figure, and the sandwiched portion 144 is connected to the connecting members 66 and 68 together with the flange portion 64. It is also possible to pinch and fix.
Here, the water turbine housing 26 is supported in the vertical direction by the flange portion 130 of one connecting member 68 here. However, it is also possible to support the water turbine housing 26 from the lower side by using a portion different from this as a support portion.

  As is clear from the above description, in this embodiment, the turbine unit 26 can be installed or removed without disconnecting the connection members 66 and 68 and removing the drain trap 34 from the drain bowl 32. It is. Accordingly, the installation work of the water turbine unit 25 can be performed more easily, and the maintenance work of the water turbine unit 25 can be easily performed when the necessity arises.

  On the other hand, in the case of this embodiment, the driven-side magnet 104 and the driving-side magnet 120 are only partially magnetically coupled at a specific part in the circumferential direction on each outer peripheral surface, that is, at the closest position. Therefore, the magnetic coupling force may be insufficient.

The example of FIG.8 and FIG.9 is the example which aimed at the solution.
In this example, the magnetic force from the driving side magnet 120 of the water wheel unit 25 to the driven side magnet 104 between the driven side magnet 104 on the impeller 96 side and the water wheel unit 26 similar to that shown in FIGS. A ring-shaped relay magnet 132 that relays transmission of (driving force) is interposed in a state of surrounding the outer periphery of the driven magnet 104 to form a concentric double ring.
Here, the relay magnet 132 is accommodated in the magnet housing 134.

The magnet housing 134 includes a main body 136 and a bottom lid 138 that closes an opening at a lower end thereof, and has a donut shape as a whole.
The inside of the magnet housing 134 is an air chamber, and a relay magnet 132 is disposed there.
In this embodiment, a rare earth magnet such as a neodymium magnet having a strong magnetic force is used as the relay magnet 132.
The relay magnet 132 is held by a ring-shaped rotating body 140, and the ring-shaped rotating body 140 is rotatably supported by a magnet housing 134 via a ring-shaped sliding member 142.
In this embodiment, the relay magnet unit 135 is composed of the relay magnet 132, the rotating body 140, the sliding member 142, and the magnet housing 134 that houses them.
The relay magnet unit 135, the water turbine unit 25, and the clamping member 71 constitute the entire drive side unit 35.

In this embodiment, the magnet housing 134 of the relay magnet 132, that is, the relay magnet unit 135 has the same mounting structure as that shown in FIGS. 2 and 3, and the drainage bowl 32 is connected by a pair of connection members 66 and 68. 7 is fixed in a state of being sandwiched from both the upper and lower sides of the flange portion 64, and the hook portion 128 of FIG. 7 provided on the water turbine housing 26 is assembled to the magnet housing 134 so as to be elastically fitted to the outer fitting state. As a result, the water turbine housing 26, that is, the water wheel unit 25, is assembled between the drain bowl 32 and the drain trap 34.
That is, the drive side unit 35 is mounted between the drain bowl 32 and the outer cylinder 36 of the drain trap 34.

  In this embodiment, since the relay magnet 132 is interposed between the drive side magnet 120 and the driven magnet 104, the relay magnet 132 surrounds the outer periphery of the driven magnet 104 to form a double ring. Further, since the relay magnet 132 is interposed, the driving magnet 120 and the driven magnet 104 can be magnetically coupled with a strong magnetic coupling force. it can.

  Therefore, even if the driving side magnet 120 and the driven side magnet 104 are only partially magnetically coupled at a part of the outer periphery, the driving force of the driving side magnet 120 is favorably applied to the driven side magnet 104, and further the blades. The impeller 96 can be driven to rotate with a strong rotational force.

  Further, the water turbine unit 25 can be attached and detached with one touch while the drain trap 34 is connected to the drain bowl 32 by the same connecting members 66 and 68 as shown in FIGS. 2 and 3. Installation work can be performed easily, and when necessary, the water turbine unit 25 can be easily removed for maintenance work.

Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, according to the present invention, the impeller can be assembled directly to the inner cylinder of the drain trap with the rotation shaft, or can be assembled with the rotation shaft via other members, and the driving magnet is rotated by a motor or the like. It is also possible. Further, the present invention can be applied to various drainage devices other than the sink, and the present invention can be configured in various modifications without departing from the spirit of the present invention.

10 Sink (water receiving tank)
25 Water wheel unit 26 Water wheel housing 32 Drain bowl (recess for drainage)
34 Drain trap 35 Drive side unit 36 Outer cylinder 46 Inner cylinder 62 Drain port 66, 68 Connection member 96 Impeller 98 Rotating blade 102 Rotating shaft 104 Driven side magnet 114 Water wheel 120 Drive side magnet 132 Relay magnet 134 Magnet housing

Claims (6)

A drainage trap having a shape that is recessed downward from the bottom of the water receiving tank and that is positioned below the drainage recess and holds sealed water at the bottom by the outer cylinder and the inner cylinder is used for the drainage. In the drainage device which is connected to the recess by a connecting member, and after draining the drainage from the water receiving tank into the drainage recess, the drainage device discharges from the drain outlet at the bottom of the drainage recess through the drain trap,
An impeller that has a rotating blade that rotates around a rotating shaft and generates a washing water flow by drainage in the drain recess by rotation of the rotating blade is assembled to the inner cylinder via the rotating shaft. Then, the impeller is detachably installed in a state where the rotary blade is positioned in the drain recess .
The said impeller state, and are not above the waste water stream force drainage in the recess is rotationally driven by a separate external power,
A driven magnet is provided on the impeller side so as to rotate integrally with the impeller, and the driven magnet is magnetically coupled to the driving magnet, and the impeller is rotated by the rotation of the driving magnet. A drainage device, characterized in that is rotated. 2. The driven magnet according to claim 1 , wherein the driven magnet is provided integrally with the impeller on the upper side of the drain trap, and the driving magnet is accommodated in a magnet housing. A drainage device characterized by being arranged in a vertical position. 3. The driven magnet and the driving magnet according to claim 2 , wherein the driven magnet and the driving magnet are arranged in a ring shape, and the driving magnet surrounds the outer periphery of the driven magnet to form a concentric double ring. Drainage device characterized by that. 3. The driven magnet and the driving magnet in a ring shape according to claim 2 , wherein the driving magnet causes the outer circumferential surface of the driving magnet and the outer circumferential surface of the driven magnet to face each other in the radial direction. The drainage device is arranged in a lateral position outside the outer peripheral surface of the driven magnet in a state. 5. The drive-side magnet according to claim 2 , wherein the drive-side magnet is provided in a water turbine housing constituting the magnet housing in a state of being integrally rotated with a water turbine that is rotated by the force of the water flow in the flow path. To drain. In Claim 4 , the said drive side magnet is provided in the water turbine housing which constitutes the above-mentioned magnet housing in the state of rotation integrally with the water turbine rotated by the power of the flow of the water of the channel,
In addition, a ring-shaped relay magnet that relays the transmission of magnetic force from the drive-side magnet to the driven-side magnet is concentric between the turbine housing and the driven-side magnet so as to surround the outer periphery of the driven-side magnet. A drainage device that is interposed in a state of forming a double ring.

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