WO2018135017A1 - Plug cover unit - Google Patents

Abstract

A plug cover unit (5) comprises a plug cover (53) that can move vertically in order to open and close a drain outlet (102). The plug cover unit (5) has an outward water flow generating member (54) that is directly or indirectly mounted to the plug cover (53) under the plug cover (53) and that is disposed inside a pipe (2) at least when the drain outlet (102) is an opened state. An outward water flow that flows toward the inner circumferential face of the pipe (2) is generated by varying the direction of wastewater flow with the outward water flow generating member (54). Thus, the wastewater can flow so that same presses against the inner circumferential face of the pipe (2). As a result, good sanitation and aesthetics can be maintained over a longer period of time and usability can be improved.

Description

Cap lid unit

The present invention relates to a plug lid unit having a plug lid for opening and closing a drain outlet of a tank body.

The plug lid unit is provided corresponding to a pipe constituting a drainage channel that flows down from a drainage outlet of a tank body (for example, a bathtub or a basin). As the lid cover unit, a unit having a disk-shaped stopper lid for opening and closing the drain outlet and a vertically movable rod-like support shaft that supports the stopper lid is generally known. The drainage port is opened and closed by moving the plug lid up and down along with the vertical movement (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 9-60073

By the way, dirt and foreign matters accompanying use tend to adhere to the inner peripheral surface of the pipe. Therefore, there is a risk that sanitary and aesthetic deterioration will easily occur. Also, in order to maintain good hygiene and aesthetics, cleaning may have to be performed frequently. However, the conventional stopper lid unit does not have a function that contributes to maintaining hygiene and improving usability.

The present invention has been made in view of the above circumstances, and the purpose thereof is a plug lid unit that can maintain good hygiene and aesthetics for a longer period of time and can improve usability. Is to provide.

Hereafter, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. A cap lid unit having a cap lid that can be moved up and down to open and close the drain outlet of the tank body,
It is directly or indirectly attached to the stopper lid below the stopper lid, and at least when the drain outlet is in an open state, it is arranged inside a pipe constituting the drainage flow path that has passed through the drain outlet. A plug lid unit comprising an outward water flow generating member configured to generate an outward water flow that flows toward an inner peripheral surface of the pipe by changing a flow direction of drainage.

According to the means 1, since the outward water flow generating member can generate the outward water flow toward the inner peripheral surface of the pipe, the drainage can be made to flow against the inner peripheral surface of the pipe. . Therefore, it is possible to effectively suppress dirt and foreign matter from adhering to the inner peripheral surface of the pipe, and even if dirt and foreign matter adhere to the inner peripheral surface of the pipe, these can be effectively washed away. . As a result, good hygiene and aesthetics can be maintained over a longer period. Further, the frequency and labor involved in cleaning can be reduced, and usability can be improved.

Furthermore, since the outward water flow generating member is directly or indirectly attached to the stopper lid, when the stopper lid can be lifted, the outward water flow generating member can be easily removed from the piping by lifting the stopper lid. Can be pulled out. This makes it possible to easily clean the outward water flow generating member.

Means 2. 2. The cap lid unit according to claim 1, wherein the outward water flow generating member generates the outward water flow so that drainage flows in a direction of rotating the inner peripheral surface of the pipe.

According to the above means 2, the outward water flow generating member allows the drainage to flow not only to the inner peripheral surface of the pipe but also to rotate the inner peripheral surface of the pipe. That is, the drainage becomes, for example, a spiral flow that flows on the inner peripheral surface of the pipe. Therefore, it is possible to more effectively suppress dirt and foreign matter from adhering to the inner peripheral surface of the pipe. Even if dirt and foreign matter adhere to the inner peripheral surface of the pipe, these are washed out very effectively. be able to. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Means 3. The means 2 is characterized in that the outward water flow generating member includes inclined blades configured to gradually displace from the upper side toward the lower side toward the one circumferential side of the pipe. Plug lid unit.

According to the above means 3, when the waste water hits the blades, it is possible to easily generate an outward water flow that flows toward the inner peripheral surface of the pipe and flows in the direction of rotating the inner peripheral surface of the pipe. Therefore, it is possible to more reliably prevent the plug lid unit from being complicated, and it is possible to reduce costs and improve convenience related to production and use.

Further, according to the means 3, the amount of drainage (drainage capacity) per unit time can be adjusted by adjusting the angle of the blades or adjusting the ease of relative rotation of the outward water flow generating member with respect to the pipe. It is also possible to change.

Means 4. The outward water flow generating member has a bottomed cylindrical shape and is provided with a drum portion in which an outflow through hole that opens toward an inner peripheral surface of the pipe is formed in a side surface portion. Or the stopper lid unit of 2.

In addition, the hole for water flow may be formed in the bottom face part of a drum part, and it does not need to be formed. In the case where a hole for water passage is formed on the bottom surface, the flow rate of the outward water flow and the drainage capacity can be adjusted by adjusting the size of the hole.

According to the above means 4, the waste water that has flowed into the drum portion flows out from the outflow through hole formed in the side surface portion, so that an outward water flow can be generated. Therefore, an outward water flow can be easily generated with a simple configuration, and the complicating of the plug lid unit can be prevented more reliably. As a result, it is possible to reduce costs and improve convenience.

Means 5. The outward water flow generating member has a conical shape or a truncated cone shape, and an upper portion is located on the center side of the pipe, and is configured to gradually approach the inner peripheral surface of the pipe from the upper side to the lower side. The stopper lid unit according to claim 1, further comprising an umbrella-shaped portion.

According to the above means 5, the drainage flows so as to travel along the umbrella-shaped portion, so that an outward water flow can be generated in the lower portion of the umbrella-shaped portion. Therefore, it is possible to generate an outward water flow with a simple configuration, and it is possible to more reliably prevent the plug lid unit from becoming complicated. As a result, it is possible to reduce costs and improve convenience.

In addition, you may comprise so that the structure part of an umbrella-shaped part may be provided intermittently (with a clearance gap) along the circumferential direction of piping. Of course, you may provide the hole for water flow in an umbrella-shaped part. Furthermore, you may comprise so that the height of the lower part of an umbrella-shaped part may change along the circumferential direction of piping.

Means 6. It is arranged at the center of the pipe, and includes a shaft portion whose upper end is fixed to the stopper lid,
The stopper lid unit according to any one of means 1 to 5, wherein the outward water flow generating member is configured to rotate relative to the shaft portion on an outer periphery of the shaft portion.

According to the means 6, the outward water flow generating member can be rotated relative to the shaft portion. And the direction of the water flow which collides with the internal peripheral surface of piping can be changed variously by the relative rotation of the outward water flow generation member. Thereby, a water flow can be randomly applied with respect to the wider area in the internal peripheral surface of piping. Further, since the outward water flow generating member rotates relative to the shaft portion on the outer periphery of the shaft portion, when the outward water flow generating member rotates relatively, the surface of the shaft portion is scraped off by the outward water flow generating member. Can do. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Further, according to the above means 6, it is possible to suppress the shaft portion and the plug lid from easily rotating together with the outward water flow generating member due to the force received by the outward water flow generating member from the drainage. Thereby, generation | occurrence | production (for example, the fall of the beauty | look at the time of drainage) with the rotation of a stopper lid can be prevented more reliably.

Means 7. The stopper lid unit according to claim 6, further comprising a rotation suppression unit that suppresses relative rotation of the outward water flow generating member with respect to the shaft portion.

According to the means 7, the relative rotation of the outward water flow generating member can be suppressed by the rotation suppressing means. Therefore, the outward water flow generating member can be prevented from rotating lightly (adjustment is made so that relative rotation is slightly less likely to occur). Thereby, the momentum toward the inner peripheral surface of the pipe can be more reliably applied to the drainage by the outward water flow generating member. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Means 8. The outward water flow generating member has a cylindrical portion through which the shaft portion is inserted,
The stopper lid unit according to claim 6 or 7, wherein a convex portion extending obliquely with respect to the axial direction of the cylindrical portion or the axial direction is provided on the inner periphery of the cylindrical portion.

Note that the convex portion may be linear, or may be a spiral shape or a thread shape.

According to the above means 8, it is possible to more reliably prevent the cylindrical portion from being in close contact with the shaft portion due to the presence of the convex portion, and consequently inhibiting the relative rotation of the outward water flow generating member with respect to the shaft portion.

Further, according to the above means 8, when the outward water flow generating member rotates relative to the shaft portion, dirt on the surface of the shaft portion can be effectively scraped off by the convex portion. Thereby, the maintenance effect, such as hygiene, and the improvement of usability can be aimed at more.

Means 9. The plug lid unit according to any one of means 6 to 8, wherein the outward water flow generating member is configured to be movable relative to the shaft portion along the axial direction of the shaft portion.

According to the means 9, the outward water flow generating member can move along the axial direction of the shaft portion. Therefore, for example, when the outward water flow generating member is relatively light (low specific gravity), or when the outward water flow generating member is supported by a spring that can be expanded and contracted in the vertical direction, etc. When the water flow generating member moves up and down easily), the water flow generating member is sunk downward when the drainage water flow is fast, while the water flow generating member is It can be lifted upward. Therefore, the direction and height of the water flow that strikes the inner peripheral surface of the pipe can be changed in various ways, and dirt on the shaft surface can be removed over a wider range. Thereby, the maintenance effect, such as hygiene, and the improvement of usability can further be aimed at.

Means 10. The plug cover according to any one of means 3, means 6 subordinate to means 3, or means 7 to 9 subordinate to said means 6, wherein the outward water flow generating member has a vertically symmetrical shape. unit.

According to the means 10, since the outward water flow generation member has a vertically symmetrical shape, when the outward water flow generation member is disposed on the outer periphery of the shaft portion, the direction of the outward water flow generation member is particularly concerned. However, it is only necessary to arrange the outward water flow generating member on the outer periphery of the shaft portion. Accordingly, it is possible to prevent erroneous assembly of the outward water flow generating member, and it is possible to further improve the convenience of production and use.

Means 11. It is arranged at the center of the pipe, and includes a shaft portion whose upper end is fixed to the stopper lid,
By reversing the upper and lower sides of the outward water flow generating member, whether or not the relative rotation of the outward water flow generating member with respect to the shaft portion is switched, or the ease of relative rotation is changed. The cap lid unit according to any one of means 1 to 10, characterized in that:

It should be noted that the shaft portions in the means 6 and the means 11 are respectively the same, and when the means 11 is subordinate to the means 6 or a subordinate means, there are a plurality of shaft portions. Not intended.

According to the above-mentioned means 11, the relative rotation of the outward water flow generating member with respect to the shaft portion can be made impossible or impossible by reversing the top and bottom of the outward water flow generating member, or the relative direction of the outward water flow generating member with respect to the shaft portion. The ease of rotation can be changed. For example, if you want to actively generate a water flow toward the inner peripheral surface of the pipe and want to remove dirt, etc., from the pipe, use the outward water flow generating member in the forward direction to The generating member may be one that does not easily rotate relatively (including one that does not rotate at all). On the other hand, when it is desired to positively remove the surface dirt on the shaft portion, the outward water flow generating member is easily rotated relatively relative to the shaft portion by using the outward water flow generating member after being turned upside down. Can be. Thereby, it is possible to select whether or not relative rotation is possible or not without exchanging the outward water flow generating member. As a result, it is possible to further reduce costs and improve convenience.

In addition, as a specific structure which implement | achieves the said means 11, the following structure can be mentioned, for example. That is, in the configuration in which the outward water flow generating member has a cylindrical portion through which the shaft portion is inserted and the lower end surface of the cylindrical portion is supported by a predetermined portion, the one end surface of the cylindrical portion has a relatively large surface roughness. On the other hand, the other end surface of the cylindrical portion is a smooth surface. According to this configuration, the outward water flow generation member can be prevented from easily rotating relative to the shaft portion by using the lower end surface of the cylindrical portion as one end surface having a large surface roughness. On the other hand, the outward water flow generating member is turned upside down, and the lower end surface of the cylindrical portion is a smooth other end surface, whereby the outward water flow generating member can be easily rotated relative to the shaft portion.

Means 12. The cap lid according to any one of means 6 to 11, wherein the outward water flow generating member can be attached to and detached from the axial portion by inserting and removing the shaft portion with respect to the outward water flow generating member. unit.

According to the above means 12, the outward water flow generating member can be easily attached to and detached from the shaft portion. Therefore, the outward water flow generating member can be easily cleaned and the usability can be further enhanced.

Means 13. The plug according to any one of means 1 to 5, wherein the outward water flow generating member is directly or indirectly attached to the plug lid in a state in which the outward water flow generating member is not rotatable relative to the plug lid. Lid unit.

According to the means 13, it is possible to suppress the outward water flow generating member from easily rotating in the pipe. Thereby, the momentum toward the internal peripheral surface of piping can be more reliably provided with respect to waste_water | drain. As a result, it is possible to further enhance the effect of suppressing the adhesion of dirt and the like to the inner peripheral surface of the pipe and the effect of removing the dirt and the like, and it is possible to further improve the maintenance effect such as hygiene and the usability.

In addition, in terms of more reliably imparting the momentum toward the inner peripheral surface of the pipe to the drainage, the stopper lid is not rotatable relative to the tank body, and consequently the outward water flow generating member is not rotatable relative to the tank body. It is preferable that

Means 14. 14. The plug lid unit according to any one of means 1 to 13, characterized in that a space exists above the outward water flow generating member and below the plug lid.

According to the above means 14, it becomes possible to allow the drainage to flow down from the space located between the outward water flow generating member and the plug lid toward the outward water flow generating member. Thereby, the momentum toward the internal peripheral surface of piping can be more reliably provided with respect to waste_water | drain. For this reason, it is possible to further enhance the effect of suppressing adhesion of dirt and the like to the inner peripheral surface of the pipe and the effect of removing dirt and the like. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Means 15. It is disposed along the inner peripheral surface of the pipe below the outward water flow generating member, and is supported by a support portion configured to be movable up and down in the pipe, and directly or indirectly to the plug lid A water-permeable member attached to the
The plug lid is configured to move up and down by moving the water passing member up and down along the inner peripheral surface of the pipe as the support portion moves up and down. 14. The cap lid unit according to any one of 14.

According to the means 15, since the outward water flow generating member can flow the waste water toward the inner peripheral surface of the pipe, as a result, to the outer peripheral side of the water passing member located below the outward water flow generating member. And can drain the wastewater positively. Accordingly, it is possible to make it difficult for dirt and foreign matter to adhere to the outer periphery of the water passage member, and even if dirt or the like adheres, the dirt or the like can be effectively washed away. Thereby, the vertical movement of the water flow member along the inner peripheral surface of the pipe can be made smoother. As a result, the stopper lid can be moved more smoothly, and the operability and operational stability related to opening and closing of the drain outlet can be improved.

Means 16. Any of the means 1 to 15 characterized in that the outward water flow generation member includes a placement portion placed on the pipe or the tank body, and is configured to be rotatable relative to the pipe. The cap lid unit according to 1.

According to the means 16, the placing part is placed on a pipe (for example, a stepped part or an inclined part provided on the inner periphery of the pipe) or a tank body (for example, a bottom wall part constituting the bottom surface of the tank body). Thus, the outward water flow generating member can be arranged in the pipe in a more stable state.

Further, according to the means 16, it is possible to generate a frictional force between the placing portion and the pipe or the tank body while allowing the outward water flow generating member to be relatively rotatable with respect to the pipe. Therefore, it is possible to change the direction of the water flow that hits the inner peripheral surface of the pipe in various ways, while preventing the outward water flow generation member from easily rotating relative to the pipe, and thus the outward water flow generation member. Thus, the momentum directed toward the inner peripheral surface of the pipe can be more reliably applied to the drainage. Thereby, a water flow can be vigorously applied with respect to the wider area of the internal peripheral surface of piping. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

In addition, the site | part mounted in piping or a tank body in a mounting part, or the mounting part of the mounting part in piping or a tank body may be flat shape, or uneven | corrugated shape (for example, does not inhibit rotation) A relatively shallow uneven shape). In the case of a flat shape, the outward water flow generating member can be easily rotated relatively, and the direction of the water flow hitting the inner peripheral surface of the pipe can be changed more quickly. On the other hand, in the case of the concavo-convex shape, the outward water flow generating member can be made slightly difficult to rotate relatively, and the outward water flow generating member can be continuously disposed at a certain position to some extent. Therefore, the water flow can be applied more vigorously to the inner peripheral surface of the pipe while ensuring that the direction of the water flow is variously changed.

It is sectional drawing of the drain plug apparatus in 1st Embodiment. It is a perspective view of the stopper lid unit in a 1st embodiment. It is a perspective view of the outward water flow generation member in a 1st embodiment. It is a perspective view of the stopper lid unit in a 2nd embodiment. It is a perspective view of the outward water flow generation member etc. in another embodiment. In another embodiment, it is sectional drawing, such as an outward water flow generation | occurrence | production member in the cross section containing the central axis of a support shaft. In another embodiment, it is sectional drawing, such as an outward water flow generation member in the cross section orthogonal to the central axis of a support shaft. It is a perspective view of the outward water flow generation member etc. in another embodiment. It is sectional drawing, such as an outward water flow generation | occurrence | production member in another embodiment. It is a front view, such as an umbrella-shaped part in another embodiment. In another embodiment, it is a perspective view of the outward water flow generation member provided with the rotation suppression means. It is a perspective view of the outward water flow generation member for demonstrating the structure of the one end surface of the cylindrical part in another embodiment. It is a perspective view of the outward water flow generation member for demonstrating the structure of the other end surface of the cylindrical part in another embodiment. It is a perspective view of the support shaft etc. for demonstrating the structure of the large diameter part in another embodiment. It is a perspective view, such as an outward water flow generation member for demonstrating the structure of the cylindrical part in another embodiment, or a large diameter part. It is a perspective view, such as an outward water flow generation member in another embodiment. It is sectional drawing of the drain plug apparatus for showing the outward water flow generation | occurrence | production member in another embodiment. It is sectional drawing of the drain plug apparatus for showing the outward water flow generation | occurrence | production member in another embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
[First Embodiment]
As shown in FIG. 1, the drain plug device 1 is attached to a bathtub 100 as a tank body, and includes a pipe 2, a drive member 3, and a plug lid unit 5. The bathtub 100 includes a bottom wall portion 101 that constitutes a bottom portion thereof, and a drain outlet 102 is formed through the bottom wall portion 101.

The pipe 2 is a pipe that constitutes a flow path of drainage that has passed through the drainage port 102, and includes a drainage port member 21 and a drainage pipe 22 that are connected in series.

The drain port member 21 is formed in a cylindrical shape, and is inserted into the drain port 102 so that the central axis of the drain port member 21 and the central axis of the drain port 102 substantially coincide with each other. In addition, the drain port member 21 includes a flange portion 21A that protrudes radially outward at the upper end portion thereof, and a male screw portion 21B that is formed on the outer periphery on the lower side of the flange portion 21A.

The drain pipe 22 has a cylindrical shape and is provided with a female screw portion 22A capable of screwing the male screw portion 21B at the inner periphery of one end portion (upper end portion) thereof. Then, in a state where the flange portion 21A is arranged on the bottom wall portion 101, the male screw portion 21B is screwed into the female screw portion 22A, and the bottom wall portion 101 is sandwiched between the upper end surfaces of the flange portion 21A and the drain pipe 22, The drain port member 21 and the drain pipe 22 are connected, and both are attached to the bathtub 100.

In the present embodiment, an annular seal member 11 formed of an elastically deformable material is disposed between the flange portion 21A and the surface of the bottom wall portion 101. An annular seal member 12 made of an elastically deformable material is disposed between the upper end surface of the drain pipe 22 and the back surface of the bottom wall portion 101 in the same manner as the seal member 11. Both seal members 11 and 12 prevent water leakage between the pipe 2 and the bathtub 100.

Further, the drainage pipe 22 is formed with a circular communication hole 22B communicating from the inner periphery to the outer periphery. The communication hole 22B functions as an arrangement space for the driving member 3.

The driving member 3 has a function of moving the stopper lid unit 5 up and down. The drive member 3 includes a columnar portion 31 having a columnar shape, and a support portion 32 provided in a state of protruding from the outer peripheral side of one end surface (end surface on the internal space side of the pipe 2) of the columnar portion 31. .

The cylindrical portion 31 is disposed in a state where one end surface does not protrude from the inner peripheral surface of the pipe 2 and is rotatable around a rotation shaft extending in the horizontal direction. The cylindrical portion 31 is connected to a transmission member (for example, a wire) (not shown) that reciprocates with a displacement of a predetermined operation member (for example, an operation button or an operation handle) (not shown). The cylindrical portion 31 rotates as the transmission member reciprocates with the displacement of the operation member.

The support portion 32 protrudes into the pipe 2 through the communication hole 22 </ b> B and has a role of supporting the plug lid unit 5. The support part 32 moves up and down as the cylindrical part 31 rotates. Moreover, the support part 32 is made short so as not to reach the central axis of the pipe 2 (drainage pipe 22).

The plug lid unit 5 is a unit mainly for opening and closing the drain port 102, but also has a function of generating an outward water flow that flows toward the inner peripheral surface of the pipe 2 by changing the flow direction of the drainage. It is a unit that has. The plug lid unit 5 can be installed in the pipe 2 from above the pipe 2 and can be removed from the pipe 2. Specifically, the stopper cover unit 5 can be disposed in the pipe 2 by introducing the stopper cover unit 5 into the pipe 2 from above the pipe 2. On the other hand, by pulling up the plug cover unit 5 from above the pipe 2, the plug cover unit 5 can be removed from the pipe 2.

As shown in FIG. 2, the stopper lid unit 5 includes a water passage member 51, a support shaft 52 as a shaft portion, a stopper lid 53, and an outward water flow generating member 54.

The water passage member 51 is a member that is lifted by the support portion 32 at least when the support portion 32 moves up. The water flow member 51 has an annular shape and is disposed along the inner peripheral surface of the pipe 2 (drain pipe 22). The water flow member 51 is attached to the lower end portion of the support shaft 52 via a plurality of arm portions 55 extending along the radial direction. As a result, the water passing member 51 is in a state of being indirectly attached to the stopper lid 53 via the arm portion 55 and the support shaft 52. In addition, you may attach a water flow member directly with respect to a stopper lid.

The support shaft 52 is disposed substantially at the center of the pipe 2 and has a rod shape extending in the vertical direction. Further, the back center portion of the plug lid 53 is attached to the upper end portion of the support shaft 52, and the plug lid 53 is supported by the support shaft 52.

Furthermore, the lower end portion of the support shaft 52 is provided with a large-diameter portion 52A bulging outward in the radial direction, and the outward water flow generating member 54 is placed on the large-diameter portion 52A. It has become.

In the present embodiment, the portion corresponding to the large diameter portion 52 </ b> A of the support shaft 52, the water passage member 51, and the arm portion 55 are integrated, and the integrated component can be detached from the support shaft 52. It has become.

The stopper lid 53 includes a disk-like stopper lid main body portion 53A made of resin or the like, and a packing portion 53B attached to the stopper lid main body portion 53A. The packing portion 53B is formed in an annular shape by an elastically deformable material (for example, rubber or resin), and is attached to the outer peripheral side of the back surface of the plug lid main body portion 53A.

And the said transmission member moves forward with the displacement of the said operation member, and the support part 32 moves up by the cylinder part 31 rotating to one side, and the water flow member 51 is on the internal peripheral surface of the piping 2. FIG. Move up along. As a result, the stopper lid 53 moves upward, and the packing portion 53B is separated from the drain port member 21, whereby the drain port 102 is opened. On the other hand, with the displacement of the operation member, the transmission member moves backward, and the cylindrical portion 31 rotates to the other side, so that the support portion 32 moves downward, and the water passing member 51 moves to the inner peripheral surface of the pipe 2. Move down along. As a result, the stopper lid 53 moves downward, and the entire outer peripheral portion of the packing portion 53B comes into contact with the drain port member 21, whereby the drain port 102 is closed.

In the present embodiment, when the drain port 102 is in the open state, the water passage member 51 is placed on the support portion 32, while the support portion 32 is disposed at the lowest position (drainage). When the mouth 102 is in the closed state), the water passage member 51 is separated from the support portion 32 (floating state). Thereby, when the drain outlet 102 is closed, the packing portion 53B can be brought into contact with the drain outlet member 21 more reliably, and good water tightness can be obtained.

The outward water flow generating member 54 is indirectly attached to the stopper lid 53 via the support shaft 52 below the stopper lid 53. At least a part of the outward water flow generation member 54 is configured to be disposed inside the pipe 2 when at least the drain outlet 102 is opened. In the present embodiment, the outward water flow generation member 54 has a vertically symmetrical shape, and is made of a predetermined resin, so that it is relatively light (specific gravity is less than 1).

In the present embodiment, at least a part of the outward water flow generating member 54 has a plug lid 53 (packing portion 53B) when the drain port 102 of the pipe 2 is closed when at least the drain port 102 is opened. ) And the portion located below the portion in contact with. That is, at least a part of the outward water flow generating member 54 is not located in a portion of the pipe 2 where water can be accumulated when the drain outlet 102 is closed, but inside a portion that functions exclusively as a drainage flow path. Has been. In particular, in this embodiment, when at least half of the outward water flow generating member 54 along the height direction (vertical direction) opens the drain port 102, the drain port 102 of the pipe 2 is It is comprised so that it may be arrange | positioned inside the part located below rather than the site | part which contacts the stopper lid | cover 53 (packing part 53B) when it closes.

Furthermore, the outward water flow generating member 54 includes a cylindrical portion 54A, and a plurality of (three in the present embodiment) blades 54B that protrude outward from the outer periphery of the cylindrical portion 54A. The number of blades 54B can be changed as appropriate.

The cylindrical portion 54 </ b> A is inserted into the support shaft 52 and is rotatable relative to the support shaft 52. When the cylindrical portion 54 </ b> A rotates relative to the support shaft 52, the outward water flow generation member 54 rotates relative to the support shaft 52.

In addition, the lower end portion of the cylindrical portion 54 </ b> A is placed on the large diameter portion 52 </ b> A of the support shaft 52, while the upper end portion thereof is disposed with a gap between the stopper lid 53. Thereby, the outward water flow generation member 54 can move relative to the support shaft 52 along the axial direction of the support shaft 52. Further, there is a space above the outward water flow generating member 54 and below the stopper lid 53.

Further, as shown in FIG. 3, a plurality of convex portions 54C extending along the axial direction of the cylindrical portion 54A are provided on the inner periphery of the cylindrical portion 54A. Each convex portion 54C has a linear shape and is arranged in a state of being spaced apart from each other along the circumferential direction of the cylindrical portion 54A.

The blades 54B are inclined so as to be gradually displaced toward the one side in the circumferential direction of the pipe 2 from above to below (from one end side to the other end side of the cylindrical portion 54A). . The blades 54B are provided at equal intervals along the circumferential direction of the cylindrical portion 54A. Note that the inclination angle of the blade 54B can be changed as appropriate.

When the drain outlet 102 is in an open state by the outward water flow generating member 54 configured as described above, that is, when drainage flows into the pipe 2, the drainage hits the blades 54B. Therefore, momentum in a direction substantially along the tangential direction with respect to the inner peripheral surface of the pipe 2 is given to the wastewater that has simply flowed vertically downward, and the flow direction of the wastewater changes. As a result, an outward water flow that flows toward the inner peripheral surface of the pipe 2 can be generated. In particular, in the present embodiment, the outward water flow generation member 54 can generate an outward water flow so that the drainage flows toward the direction of rotation of the inner peripheral surface of the pipe 2. Thereby, in the inside of the pipe 2, the drainage becomes, for example, a spiral flow flowing on the inner peripheral surface of the pipe 2.

Further, in this embodiment, when at least half of the outward water flow generating member 54 along the height direction (vertical direction) has at least the drain port 102 open, the drain port 102 of the pipe 2 is opened. Is disposed inside the portion located below the portion that contacts the plug lid 53 (packing portion 53B) when the valve is closed, and therefore, the momentum toward the inner peripheral surface of the pipe 2 is more effective against drainage. Can be granted.

Further, since the outward water flow generating member 54 can rotate relative to the support shaft 52, when the water flow of the drainage is fast, when the outward water flow is generated, the outward water flow generating member 54 is supported by the support shaft 52. Rotates relative to.

Furthermore, since the outward water flow generation member 54 is relatively movable along the axial direction of the support shaft 52, the outward water flow generation member 54 moves up and down depending on the momentum of the drainage.

In addition, the outward water flow generating member 54 (cylindrical portion 54A) in a state where the part corresponding to the large diameter portion 52A of the support shaft 52, the water passage member 51, and the like are integrated and removed from the support shaft 52. ), The outward water flow generating member 54 can be attached to and detached from the support shaft 52.

As described in detail above, according to the present embodiment, the outward water flow generating member 54 can generate an outward water flow toward the inner peripheral surface of the pipe 2. Therefore, the drainage can be allowed to flow so as to press against the inner peripheral surface of the pipe 2. Accordingly, it is possible to effectively prevent dirt and foreign matter from adhering to the inner peripheral surface of the pipe 2, and even if dirt and foreign matter adhere to the inner peripheral surface of the pipe 2, they can be washed away effectively. Can do. As a result, good hygiene and aesthetics can be maintained over a longer period. Further, the frequency and labor involved in cleaning can be reduced, and usability can be improved.

Particularly in this embodiment, the outward water flow generating member 54 causes the drainage to flow on the inner peripheral surface of the pipe 2. Accordingly, it is possible to more effectively suppress dirt and foreign matter from adhering to the inner peripheral surface of the pipe 2, and even if dirt and foreign matter adhere to the inner peripheral surface of the pipe 2, these are very effective. Can be washed away. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Moreover, the outward water flow described above can be easily generated by the wastewater hitting the blades 54B. Therefore, complication of the plug lid unit 5 can be prevented more reliably, and the cost can be reduced and the convenience related to production and use can be improved.

In addition, since the outward water flow generating member 54 is indirectly attached to the plug lid 55, the outward water flow generating member 54 can be easily pulled out from the pipe 2 by pulling up the plug lid 55. As a result, the outward water flow generating member 54 can be easily cleaned.

Furthermore, the amount of drainage per unit time (drainage capacity) may be changed by adjusting the angle of the blades 54B or adjusting the ease of relative rotation of the outward water flow generating member 54 with respect to the pipe 2. It becomes possible. If the outward water flow generating member 54 is easily rotated relative to the pipe 2, the drainage capacity is relatively high, and the outward water flow generating member 54 is difficult to rotate relative to the pipe 2. The drainage capacity is relatively low.

In addition, since the outward water flow generating member 54 can rotate relative to the support shaft 52 on the outer periphery of the support shaft 52, the direction of the water flow that hits the inner peripheral surface of the pipe 2 by the rotation of the outward water flow generating member 54. Can be changed in various ways. Thereby, a water flow can be randomly applied to a wider area on the inner peripheral surface of the pipe 2. Further, when the outward water flow generating member 54 rotates relative to the support shaft 52, the dirt on the surface of the support shaft 52 can be scraped off by the outward water flow generating member 54 (cylindrical portion 54A). As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Further, by allowing the outward water flow generation member 54 to rotate relative to the support shaft 52, the support shaft 52 and the plug lid 53 together with the outward water flow generation member 54 are caused by the force that the outward water flow generation member 54 receives from the drainage. It can suppress that it rotates easily. Thereby, generation | occurrence | production (for example, the fall of the beauty | look at the time of drainage) with the rotation of the stopper lid 53 can be prevented more reliably.

In addition, it is possible to more reliably prevent the cylindrical portion 54A from coming into close contact with the support shaft 52 due to the presence of the convex portion 54C, and thus inhibiting the relative rotation of the outward water flow generating member 54 with respect to the support shaft 52. Thereby, the effect by making the outward water flow generation | occurrence | production member 54 relatively rotatable with respect to the support shaft 52 mentioned above can be exhibited more reliably.

Further, when the cylindrical portion 54A rotates relative to the support shaft 52, the surface of the support shaft 52 can be effectively scraped off by the convex portion 54C. Thereby, the maintenance effect, such as hygiene, and the improvement of usability can be aimed at more.

In addition, in the present embodiment, the outward water flow generating member 54 is movable along the axial direction of the support shaft 52. Therefore, when the outward water flow generation member 54 is relatively light (small specific gravity) as in the present embodiment, the outward water flow generation member 54 is sunk downward when the drainage water flow is fast, On the other hand, when the drainage water flow is slow, the outward water flow generation member 54 can be lifted upward. Therefore, the direction and height of the water flow that hits the inner peripheral surface of the pipe 2 can be changed in various ways, and dirt on the surface of the support shaft 52 can be removed over a wider range. Thereby, the maintenance effect, such as hygiene, and the improvement of usability can further be aimed at.

Further, since the outward water flow generation member 54 has a vertically symmetrical shape, the outward water flow generation member 54 is disposed on the outer periphery of the support shaft 52 (when the support shaft 52 is inserted into the outward water flow generation member 54). The support shaft 52 can be simply inserted into the outward water flow generation member 54 without particularly worrying about the direction of the outward water flow generation member 54. Accordingly, it is possible to prevent erroneous assembly of the outward water flow generating member 54, and it is possible to further enhance the convenience of production and use.

In addition, since there is a space above the outward water flow generation member 54 and below the stopper lid 53, the drainage can flow down from the space toward the outward water flow generation member 54. It becomes possible. Thereby, the momentum toward the inner peripheral surface of the pipe 2 can be more reliably imparted to the drainage. For this reason, it is possible to further enhance the effect of suppressing adhesion of dirt and the like to the inner peripheral surface of the pipe 2 and the effect of removing dirt and the like. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Further, according to the present embodiment, the drainage can be actively flowed to the outer peripheral side of the water flow member 51 positioned below the outward water flow generation member 54. Accordingly, it is possible to make it difficult for dirt and foreign matter to adhere to the outer periphery of the water flow member 51. Even if dirt or the like is attached, the dirt or the like can be effectively washed away. Thereby, the vertical movement of the water flow member 51 along the inner peripheral surface of the pipe 2 can be made smoother. As a result, the stopper lid 53 can be moved more smoothly, and the operability and operational stability related to the opening and closing of the drain port 102 can be improved.

Furthermore, the outward water flow generation member 54 can be attached to and detached from the support shaft 52 by inserting and removing the support shaft 52 from the outward water flow generation member 54. Therefore, the outward water flow generating member 54 can be easily attached to and detached from the support shaft 52. Therefore, the outward water flow generating member 54 can be easily cleaned and the usability can be further enhanced.
[Second Embodiment]
Next, the second embodiment will be described focusing on the differences from the first embodiment. In the first embodiment, the plug lid unit 5 is configured such that a support shaft 52 as a shaft portion is attached to the water passage member 51 and the plug lid 53 is supported by the support shaft 52. On the other hand, as shown in FIG. 4, the plug lid unit 6 in the second embodiment has a shaft portion 62 extending so as to hang from the center of the back surface of the plug lid 63, and the shaft portion 62 is It is in a state of being separated from the water flow member 61. That is, the shaft portion 62 is not attached to the water passage member 61 and does not have a role of supporting the stopper lid 63.

The outward water flow generating member 64 is disposed on the outer periphery of the shaft portion 62. That is, the shaft portion 62 in the second embodiment is only assumed to support the outward water flow generating member 64.

The outward water flow generating member 64 has the same configuration as the outward water flow generating member 54 in the first embodiment, and includes a cylindrical portion 64A and blades 64B. Moreover, in this 2nd Embodiment, the water flow member 61 and the stopper lid | cover 63 are connected by the some support shaft 65 which makes a rod shape. The support shaft 65 has the same role as the support shaft 52 in the first embodiment in that it supports the stopper lid 63. The point that the water passage member 61 and thus the plug lid 63 moves up and down as the support portion 32 moves up and down is the same as in the first embodiment.

As described above, according to the second embodiment, basically the same operational effects as those of the first embodiment are exhibited.

In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

(A) The outward water flow generation member may be any member that can generate an outward water flow, and is not limited to the one having the configuration described in the above embodiment.

Therefore, for example, as shown in FIG. 5, the outward water flow generation member 74 has a drum portion 74A having a bottomed cylindrical shape, and opens toward the inner peripheral surface of the pipe 2 on the side surface portion of the drum portion 74A. You may comprise so that the outflow through-hole 74B may be formed. In this case, the waste water that has flowed into the drum portion 74A flows out of the outflow through hole 74B, so that an outward water flow can be generated. Therefore, an outward water flow can be easily generated with a simple configuration, and the complicating of the plug lid unit can be prevented more reliably. As a result, it is possible to reduce costs and improve convenience.

Furthermore, as shown in FIG. 6, the bottom surface portion 74C of the drum portion 74A may have a tapered shape that gradually inclines downward from the center side toward the outer peripheral side. In this case, the drainage can flow out from the outflow through hole 74B more vigorously.

Further, as shown in FIG. 7, the outflow through hole 74 </ b> B is configured to extend along a tangential direction with respect to the inner peripheral surface of the drum portion 74 </ b> A, so that the drainage flows in the direction of rotating the inner peripheral surface of the pipe 2. It is good also as producing an outward water flow. However, the direction in which the outflow through hole extends can be appropriately changed. For example, the outflow through hole may extend along the radial direction of the drum portion.

In addition, the bottom surface 74C may be flat without providing an inclination. Moreover, it is good also as forming the hole for water flow suitably with respect to the bottom face part 74C. In the case where a hole for passing water is formed in the bottom surface portion 74C, the flow rate of the outward water flow and the drainage capacity can be adjusted by adjusting the size of the hole.

Further, as shown in FIGS. 8 and 9, the outward water flow generation member 84 has a truncated cone shape, the upper part is located on the center side of the pipe 2, and the pipe 2 gradually moves from the upper side to the lower side. It may have the umbrella-shaped part 84A comprised so that it may approach the inner peripheral surface. In this case, the drainage flows so as to travel along the umbrella-shaped portion 84A, so that an outward water flow can be generated in the lower portion of the umbrella-shaped portion 84A. Therefore, it is possible to generate an outward water flow with a simple configuration, and it is possible to more reliably prevent the plug lid unit from becoming complicated. As a result, it is possible to reduce costs and improve convenience.

In addition, as shown in FIG. 10, you may comprise the umbrella-shaped part 84B so that an inclination may become gentle gradually as it goes below.

Further, a water passage hole may be appropriately formed in the umbrella-shaped portions 84A and 84B. In addition, the constituent portions of the umbrella-shaped portions 84A and 84B may be provided intermittently (with a gap) along the circumferential direction of the pipe 2. Furthermore, you may comprise so that the height of the lower part of umbrella-shaped part 84A, 84B may change along the circumferential direction of the piping 2. FIG.

In addition, a configuration in which the shaft portion is not disposed at the center of the pipe 2 (for example, the shaft portion is omitted, and the portion located on the inner peripheral surface side of the pipe 2 and the stopper lid 53 is formed in a rod-like shape. In the case of adopting a configuration in which the connecting portions are connected), the umbrella-shaped portion may be conical.

Moreover, you may utilize as a water flow member (part supported by the support part 32) the annular part located in the lower part of an umbrella-shaped part and the inner peripheral surface side of the piping 2. FIG. That is, the outward water flow generation member and the water flow member may be integrated. In this case, the number of parts can be reduced, and the increase in cost can be suppressed.

(B) In the above embodiment, the outward water flow generating members 54 and 64 are indirectly attached to the plug lids 53 and 63 via the support shaft 52 and the shaft portion 62. It is good also as attaching directly with respect to a stopper lid.

(C) In the above embodiment, the convex portion 54C has a shape extending along the axial direction of the cylindrical portion 54A. However, the convex portion may be configured to extend obliquely with respect to the axial direction of the cylindrical portion 54A. Good. For example, the convex portion may have a spiral shape or a screw thread shape.

(D) In the above embodiment, the outward water flow generation members 54 and 64 are rotatable relative to the shaft portion (the support shaft 52 and the shaft portion 62). It may be configured such that the relative rotation is impossible and the outward water flow generating member is directly or indirectly attached to the plug lid in a state in which relative rotation is impossible. In this case, it is possible to suppress the outward water flow generating member from easily rotating in the pipe 2. Thereby, the momentum toward the inner peripheral surface of the pipe 2 can be more reliably imparted to the drainage. As a result, the effect of suppressing adhesion of dirt and the like to the inner peripheral surface of the pipe 2 and the effect of removing dirt can be further enhanced, and the maintenance effect such as hygiene and the convenience can be further improved.

In addition, by making the plug lid relatively non-rotatable with respect to the bathtub 100 and thus making the outward water flow generating member non-rotatable with respect to the bathtub 100, the momentum toward the inner peripheral surface of the pipe 2 with respect to drainage is further ensured. You may comprise so that it may be provided.

(E) It is good also as providing the rotation suppression means for suppressing the relative rotation of an outward water flow generation | occurrence | production member. For example, as shown in FIG. 11, an elastic deformation portion 57A configured by a part of the cylindrical portion 54A and elastically deformable along the radial direction of the cylindrical portion 54A, and a pressure contact projecting from the inner side surface of the elastic deformation portion 57A. You may comprise the rotation suppression means 57 with the projection part 57B. In this case, when the support shaft 52 is inserted into the cylindrical portion 54 </ b> A, the elastic deformation portion 57 </ b> A is elastically deformed outward, and as a result, the pressure contact projection portion 57 </ b> B is in pressure contact with the support shaft 52. Thereby, the relative rotation of the outward water flow generation member 54 can be suppressed. A plurality of rotation suppressing means 57 may be provided, or a plurality of pressure contact projections 57B may be provided for one elastic deformation portion 57A. The rotation suppression means 57 can suppress the relative rotation of the outward water flow generation member 54 and can prevent the outward water flow generation member 54 from rotating lightly (adjustment is made so that relative rotation is slightly less likely to occur). . As a result, the outward water flow generating member 54 can more reliably impart the momentum toward the inner peripheral surface of the pipe 2 to the drainage. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

(F) In the above embodiment, the one end surface and the other end surface of the cylindrical portion 54A are smooth surfaces. On the other hand, as shown in FIGS. 12 and 13, by providing a plurality of protrusions 94B and the like on one end surface of the cylindrical portion 94A, the one end surface has a relatively large surface roughness. The outward water flow generating member 94 may be configured such that the other end surface of 94A forms a smooth surface. In this case, by making the lower end surface of the cylindrical portion 94 </ b> A one end surface having a large surface roughness, the outward water flow generating member 94 can be prevented from easily rotating relative to the support shaft 52. That is, the rotation suppressing means is configured by the plurality of protrusions 94B provided on one end surface of the cylindrical portion 94A. On the other hand, the outward water flow generating member 94 is turned upside down so that the lower end surface of the cylindrical portion 94A is the other smooth end surface, so that the outward water flow generating member 94 is easily rotated relative to the support shaft 52. Can do. That is, according to the above configuration, the ease of relative rotation of the outward water flow generating member 94 with respect to the support shaft 52 can be changed by inverting the up and down of the outward water flow generating member 94.

As shown in FIG. 14, by providing a plurality of protrusions 52B on the mounting surface on which the lower end surface of the cylindrical portion 94A in the large-diameter portion 52A is mounted, the mounting surface is made a relatively large surface. It may have a roughness, and when the lower end surface of the cylindrical portion 94A is an end surface having a large surface roughness, the outward water flow generating member 94 may be configured to be more difficult to rotate relatively. In this case, the protrusion 94B and the protrusion 52B constitute rotation suppression means.

Further, as shown in FIG. 15, the outward water flow generating member 104 is configured such that a plurality of insertion protrusions 104B are provided on one end surface of the cylindrical portion 104A, while the other end surface of the cylindrical portion 104A is a smooth surface, and It is good also as providing the hole part 52C in which the said insertion protrusion 104B is inserted in the mounting surface in which the cylindrical part 104A in the large diameter part 52A is mounted. In this case, the lower end surface of the cylindrical portion 104A is one end surface, and the fitting protrusion 104B is fitted into the hole 52C, so that the outward water flow generating member 104 cannot be rotated relative to the support shaft 52. . On the other hand, the outward water flow generating member 104 is turned upside down so that the lower end surface of the cylindrical portion 104A is the other smooth end surface, so that the outward water flow generating member 104 is easily rotated relative to the support shaft 52. Can do. That is, according to the above configuration, it is possible to switch the relative rotation of the outward water flow generating member 104 with respect to the support shaft 52 by inverting the upper and lower surfaces of the outward water flow generating member 104.

Thus, by adopting each of the above-described configurations, it is possible to select whether or not relative rotation is possible and easy without exchanging the outward water flow generating members 94 and 104. As a result, it is possible to further reduce costs and improve convenience.

(G) In the above embodiment, the outward water flow generating member has a cylindrical portion, but it is not necessarily required to have a cylindrical portion. Therefore, for example, as shown in FIG. 16, the outer portions of the blades 114B are connected by the annular portion 114A, and the outward water flow is generated so that the support shaft 52 is inserted into the space located inside each blade 114B. The member 114 may be configured.

(H) The stopper lid 53 may be detachable from the support shaft 52. In this case, even when the plug cover 53 is removed from the support shaft 52, the outward water flow generating member can be attached to and removed from the support shaft 52 by inserting and removing the outward water flow generating member from the support shaft 52. Good.

(I) In the first embodiment, the outward water flow generating member 54 is supported by the large-diameter portion 52A by being directly placed on the large-diameter portion 52A. On the other hand, an elastic member (for example, a spring or the like) that can be stretched and deformed relatively easily along the vertical direction is disposed between the large diameter portion 52A and the cylindrical portion 54A, and the outward water flow generating member 54 is the elastic member. You may comprise so that it may be supported by. In this case, the outward water flow generating member 54 easily moves up and down due to the elastic deformation of the elastic member. Therefore, by allowing the outward water flow generating member 54 to move along the axial direction of the support shaft 52, the outward water flow generating member 54 is sunk downward when the drain water flow is fast, while the drain water flow is reduced. It becomes easier to float the outward water flow generating member 54 upward when it is late. As a result, the direction and height of the water flow that hits the inner peripheral surface of the pipe 2 can be changed in various ways, and dirt on the surface of the support shaft 52 can be removed over a wider range. When the outward water flow generating member 54 is supported by the elastic member, it is not always necessary to make the outward water flow generating member 54 light. Therefore, for example, the outward water flow generating member may be formed of a metal such as stainless steel or brass, or ceramic.

(J) In the above embodiment, the shaft portion (support shaft 52 and shaft portion 62) is relatively long, but the shaft portion may be relatively short. For example, the shaft portion may protrude slightly from the lower surfaces of the plug lids 53 and 63, and a hook-like locked portion may be formed on the outer periphery. And you may comprise so that the predetermined site | part of an outward water flow generation member may be latched with respect to the said to-be-latched part.

Also, the outward water flow generating member does not necessarily have to be supported by the shaft portion. For example, a rib that protrudes from the inner surface of the water flow member 51 (for example, a rib that intersects in a cross shape when viewed in plan) is provided, and the outward water flow generating member is placed on the rib. May be.

(K) As shown in FIG. 17, the outward water flow generating member 75 can be rotated relative to the pipe 2, and is mounted on the inclined portion 2 </ b> A that gradually decreases in diameter toward the lower side on the inner peripheral surface of the pipe 2. You may comprise so that the mounting part 75C set | placed may be provided. In this case, a frictional force can be generated between the placing portion 75 </ b> C and the pipe 2 (inclined portion 2 </ b> A) while allowing the outward water flow generating member 75 to be rotatable relative to the pipe 2. Therefore, the direction of the water flow that strikes the inner peripheral surface of the pipe 2 can be changed in various ways, and the outward water flow generation member 75 can be prevented from easily rotating relative to the pipe 2, and thus the outward direction. The water flow generating member 75 can more reliably impart the momentum toward the inner peripheral surface of the pipe 2 to the drainage. Thereby, a water flow can be vigorously applied to a wider area of the inner peripheral surface of the pipe 2. As a result, it is possible to further improve the maintenance effect such as hygiene and the usability.

Further, by setting the support shaft 52 to be inserted into the cylindrical portion located at the center of the outward water flow generating member 75, the outward water flow generating member 75 ensures the inclination of the support shaft 52 and thus the plug lid 53 more reliably. You may comprise so that it can prevent. By preventing the stopper lid 53 from tilting, a good aesthetic appearance can be obtained when the drain outlet 102 is opened.

Further, the outward water flow generating member 75 is supported in the pipe 2 by placing the mounting portion 75C on the pipe 2, and mounted on the pipe 2 regardless of the vertical movement of the plug lid 53. You may comprise so that the mounting part 75C may be maintained in the mounted state. In this case, when the stopper lid 53 is moved up and down, the outward water flow generating member 75 does not have to be moved up and down together with the stopper lid 53. Therefore, the outward water flow generating member 75 can be maintained in a stable posture, and as a result, the stopper lid 53 can be prevented from tilting more effectively. In addition, the operation force required to move the stopper lid 53 can be made smaller, and the operability can be improved.

In addition, in the example shown in FIG. 17, the outward water flow generation member 75 is provided with a plurality of blades 75B, and the mounting portion 75C is an annular member that connects the upper peripheral portions of the blades 75B. However, the outward water flow generation member does not need to be provided with blades, and the mounting portion does not need to be annular.

Therefore, for example, the outward water flow generating member is provided with a drum portion in which an outflow through-hole that opens toward the inner peripheral surface of the pipe 2 is formed, and the projection portion protruding outward from the upper end portion of the drum portion. It is good also as comprising a mounting part.

Further, for example, the outward water flow generating member has a truncated cone shape so that the upper part is located on the center side of the pipe 2 and gradually approaches the inner peripheral surface of the pipe 2 from above to below. It is assumed that a configured umbrella-shaped portion is provided, and a plurality of rod-shaped portions projecting outward from the upper end of the umbrella-shaped portion (for example, a plurality of rod-shaped portions provided at equal intervals along the circumferential direction of the pipe 2). It is good also as comprising a mounting part.

Further, the portion of the pipe 2 on which the placement portion is placed need not be an inclined portion, and may be a step portion (for example, a surface extending in the horizontal direction) formed on the inner peripheral surface of the pipe 2. Moreover, the protrusion part which protrudes inside in the inner periphery of the piping 2 may be sufficient. Moreover, you may comprise so that a mounting part may be mounted with respect to the bathtub 100 (bottom wall part 101) instead of the piping 2. FIG.

In addition, the part mounted on the pipe 2 or the bathtub 100 in the mounting part or the mounting part of the mounting part in the pipe 2 or the bathtub 100 may be flat or uneven (for example, rotated). May be a relatively shallow concavo-convex shape that does not hinder. In the case of the flat shape, the outward water flow generating member can be easily rotated relatively, and the direction of the water flow hitting the inner peripheral surface of the pipe 2 can be changed more quickly. On the other hand, in the case of the concavo-convex shape, the outward water flow generating member can be made slightly difficult to rotate relatively, and the outward water flow generating member can be continuously arranged at a certain position to some extent. Therefore, the water flow can be applied to the inner peripheral surface of the pipe 2 more vigorously while ensuring that the direction of the water flow is variously changed.

(L) As shown in FIG. 18, the bathtub 100 has a reduced diameter portion 103 that hangs down from the bottom wall portion 101 so that the inner diameter gradually decreases, and a lower portion from the lower end portion of the reduced diameter portion 103. A drooping portion 104 having a substantially constant inner diameter extending toward the bottom and an inner flange portion 105 projecting inwardly from a lower end portion of the drooping portion 104, and a drain outlet 102 is formed on the inner periphery of the inner flange portion 105. You may comprise. In this case, the pipe 2 includes a reduced diameter portion 103 and a hanging portion 104 in addition to the drain port member 21 and the drain pipe 22.

In this case, the flange 21A of the drain port member 21 is arranged on the inner flange 105, and the outward water flow generating member 76 is relatively rotatable with respect to the pipe 2. You may comprise so that the cyclic | annular mounting part 76C mounted in 21 A of collar parts in the state which adjoined the drooping part 104 in the inner periphery of the drooping part 104 may be provided.

With this configuration, it is possible to generate a frictional force between the placing portion 76 </ b> C and the drain port member 21 or the hanging portion 104 while allowing the outward water flow generating member 76 to be relatively rotatable with respect to the pipe 2. . Therefore, it is possible to more reliably prevent the outward water flow generating member 76 from being easily relatively rotated with respect to the pipe 2 while making it possible to change the direction of the water flow hitting the inner peripheral surface of the pipe 2 in various ways. As a result, the outward water flow generating member 76 can more reliably impart the momentum toward the inner peripheral surface of the pipe 2 to the drainage, and can further improve the maintenance effect such as hygiene and the usability. .

Further, since the placing portion 76C is disposed in the state of being close to the hanging portion 104, the axis of the cylindrical portion 76A in the outward water flow generating member 76 can be kept at a substantially constant position. Therefore, the movement and inclination of the support shaft 52 inserted through the cylindrical portion 76A along the horizontal direction can be effectively suppressed, and the displacement and inclination of the support shaft 52 and the plug lid 53 along the horizontal direction can be further reduced. It can be surely prevented.

In addition, in the example shown in FIG. 18, the outward water flow generation member 76 is provided with a plurality of blades 76B, and the placing portion 76C is connected to the outer peripheral upper end portion of each blade 76B.

(M) In the above embodiment, the drive member 3 includes the column part 31 and the support part 32 protruding from one end surface of the column part 31, but the drive member moves the stopper lid unit up and down. However, the present invention is not limited to the configuration described in the above embodiment. Therefore, a rod-shaped portion that can rotate the drive member with a rotation shaft extending in the horizontal direction, and a support portion that protrudes from the outer peripheral surface of the rod-shaped portion and whose tip moves up and down as the rod-shaped portion rotates. You may comprise by. The said support part may support a water-permeable member, and may support a shaft part (support shaft 52 etc.).

The drive member is disposed below the support shaft 52 and is a rod-like portion that can be moved up and down with the reciprocating movement of the transmission member. The shaft portion (the support shaft 52 and the like) is moved by the vertical movement of the rod-like portion. You may comprise so that it may move up and down.

(N) In the above embodiment, the drain lid 102 is closed by the stopper lid 53 (packing portion 53B) coming into contact with the drain port member 21, but the stopper lid 53 (packing portion 53B) is You may comprise so that the drain outlet 102 may be closed by contacting the bottom wall part 101. FIG. Further, the drain cover 102 is closed when the plug lid 53 (packing part 53B) contacts a part other than the drain port member 21 in the pipe 2 (for example, the reduced diameter part 103 in FIG. 18). Also good.

In these cases, at least a part of the outward water flow generating member is below the contact portion of the tank body and the plug lid 53 (packing portion 53B) in the pipe 2 when at least the drain port 102 is opened. It is comprised so that it may be arrange | positioned inside the part (Namely, the part which comprises the flow path of drainage especially among the piping 2). In addition, the half or more part along the height direction (up-down direction) of the outward water flow generation member is located below the contact portion of the tank body and the plug lid 53 (packing portion 53B) in the pipe 2. You may comprise so that it may be arrange | positioned inside a part.

(O) In the above embodiment, the bathtub 100 is illustrated as the tank body, but the tank body to which the technical idea of the present invention is applicable is not limited to the bathtub. Therefore, for example, the technical idea of the present invention may be applied to a wash basin or a kitchen sink.

5 ... Plug lid unit, 2 ... Piping, 32 ... Supporting part, 51 ... Water passage member, 52 ... Support shaft (shaft part), 53 ... Plug lid, 54 ... Outward water flow generating member, 54A ... Cylindrical part, 54B ... A blade, 54C ... convex part, 57 ... rotation suppression means, 74A ... drum part, 74B ... outflow through hole, 75C ... mounting part, 84A ... umbrella-like part, 100 ... bathtub (tank body), 102 ... drainage port.

Claims (16)

1. A cap lid unit having a cap lid that can be moved up and down to open and close the drain outlet of the tank body,
   It is directly or indirectly attached to the stopper lid below the stopper lid, and at least when the drain outlet is in an open state, it is arranged inside a pipe constituting the drainage flow path that has passed through the drain outlet. A plug lid unit comprising an outward water flow generating member configured to generate an outward water flow that flows toward an inner peripheral surface of the pipe by changing a flow direction of drainage.
2. 2. The cap lid unit according to claim 1, wherein the outward water flow generating member generates the outward water flow so that drainage flows in a direction of rotating an inner peripheral surface of the pipe.
3. The said outward water flow generation member is provided with the inclined blade | wing comprised so that it might displace gradually toward the circumferential direction one side of the said piping toward the downward direction from the upper direction. The stopper lid unit as described.
4. The outward water flow generation member has a bottomed cylindrical shape, and includes a drum portion in which an outflow through hole that opens toward an inner peripheral surface of the pipe is formed in a side surface portion. The stopper lid unit according to 1 or 2.
5. The outward water flow generating member has a conical shape or a truncated cone shape, and an upper portion is located on the center side of the pipe, and is configured to gradually approach the inner peripheral surface of the pipe from the upper side to the lower side. The cap lid unit according to claim 1, further comprising an umbrella-shaped portion.
6. It is arranged at the center of the pipe, and includes a shaft portion whose upper end is fixed to the stopper lid,
   The plug lid unit according to any one of claims 1 to 5, wherein the outward water flow generating member is configured to rotate relative to the shaft portion on an outer periphery of the shaft portion.
7. The plug lid unit according to claim 6, further comprising a rotation suppression unit that suppresses relative rotation of the outward water flow generating member with respect to the shaft portion.
8. The outward water flow generating member has a cylindrical portion through which the shaft portion is inserted,
   The plug lid unit according to claim 6 or 7, wherein a convex portion that extends in an axial direction of the cylindrical portion or obliquely with respect to the axial direction is provided on an inner periphery of the cylindrical portion.
9. The plug lid according to any one of claims 6 to 8, wherein the outward water flow generating member is configured to be relatively movable with respect to the shaft portion along an axial direction of the shaft portion. unit.
10. The said outward water flow generation member has a vertically symmetrical shape, claim 6 dependent on claim 3, claim 6 dependent on claim 6, or claim 7 dependent on claim 6 The stopper lid unit according to item 1.
11. It is arranged at the center of the pipe, and includes a shaft portion whose upper end is fixed to the stopper lid,
    By reversing the upper and lower sides of the outward water flow generating member, whether or not the relative rotation of the outward water flow generating member with respect to the shaft portion is switched, or the ease of relative rotation is changed. The stopper lid unit according to any one of claims 1 to 10, wherein:
12. The insertion / removal of the shaft portion with respect to the outward water flow generation member enables attachment / detachment of the outward water flow generation member with respect to the shaft portion. Plug lid unit.
13. The said outward water flow generation | occurrence | production member is directly or indirectly attached with respect to the said stopper lid in the state which cannot be relatively rotated with respect to the said stopper lid, The any one of Claim 1 thru | or 5 characterized by the above-mentioned. The stopper lid unit as described.
14. The plug lid unit according to any one of claims 1 to 13, wherein a space exists above the outward water flow generation member and below the plug lid. .
15. It is disposed along the inner peripheral surface of the pipe below the outward water flow generating member, and is supported by a support portion configured to be movable up and down in the pipe, and directly or indirectly to the plug lid A water-permeable member attached to the
    2. The plug lid is configured to move up and down as the water passing member moves up and down along the inner peripheral surface of the pipe as the support portion moves up and down. The stopper lid unit of any one of thru | or 14.
16. The said outward water flow generation member is provided with the mounting part mounted in the said piping or the said tank, and is comprised so that relative rotation with respect to the said piping is possible. The stopper lid unit according to claim 1.

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