JP2018003348A - Drain plug device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively suppress an increase in cost while making it possible to deal with both a case where a water flow member can be pulled out from a pipe and a case where the water flow member cannot be easily pulled out from a pipe. SOLUTION: A drain plug device 1 has a plug lid 6 and a supported portion 71 arranged along an inner peripheral surface of a pipe 2, and has a water passing member 7 for supporting the plug lid 6 and a water passing member. A support portion 44 that supports the 7 is provided, and at least a portion of the support portion 44 that comes into contact with the supported portion 71 moves up and down, so that the plug lid 6 moves up and down. The supported portion 71 has an inserted portion 712B through which the support portion 44 can be inserted. By setting the support portion 44 not to be inserted into the inserted portion 712B, the water passing member 7 can be pulled out from the pipe 2, and the support portion 44 is inserted into the inserted portion 712B. , It is possible to select a pull-out restricted state in which the water-flowing member 7 from the pipe 2 is not easily pulled out from the pull-out possible state. [Selection diagram] Fig. 1

Description

  The present invention relates to a drain plug device provided with a plug lid for opening and closing a drain port of a tank body.

  The drain plug device is provided with a plug lid provided in a drain port of a tank body (for example, a bathtub or a washbasin), and opens and closes the drain port by moving the plug lid up and down.

  As a drain plug device, a rod-shaped support shaft that supports the plug lid in a vertically movable state at the center of a drain pipe, an operation member that can be displaced by reciprocation or rotation, and the displacement of the operation member One having a transmission member that transmits a driving force to the support shaft side is generally known. In such a drain plug device, the support member moves up and down by moving the transmission member in accordance with the displacement (operation) of the operation member, so that the drain port is opened and closed.

  Further, in recent years, a water flow member having an annular supported portion (outer peripheral wall) disposed along the inner peripheral surface of the pipe in the pipe, and a support section that slightly protrudes into the pipe and supports the supported section. A drain plug device having a (support projection) has been proposed (see, for example, Patent Document 1). In this drain plug device, the lower end surface of the supported portion is placed on the support portion, and as a result, the water passage member can be pulled out (removable) from the pipe.

Japanese Patent No. 55677782

  By the way, depending on the situation such as the use environment, it may be preferable that the water passing member is not easily pulled out from the pipe. In such a case, for example, instead of the above-described water-permeable member, a method of using a water-permeable member configured such that the supported portion is hooked in the vertical direction with respect to the support portion can be considered.

  However, in this method, at least two kinds of water passage members are used in order to cope with both the case where the water passage member can be pulled out from the pipe and the case where the water passage member is not easily pulled out from the pipe. It is necessary to prepare. For this reason, there is a risk of increasing the cost.

  This invention is made | formed in view of the said situation, The objective is both when making a water flow member pullable from piping, and when not making it easy to pull a water flow member from piping. An object of the present invention is to provide a drain plug device that can effectively suppress an increase in cost while being able to cope with the above.

  In the following, each means suitable for solving the above-described object 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 stopper lid that can be moved up and down to open and close the drain of the tank body;
A drainage member having a supported portion arranged along the inner peripheral surface of the pipe in the drainage pipe, and directly or indirectly supporting the stopper lid;
Protruding into the pipe, and at least when the drain outlet is in an open state, by contacting the supported portion, a support portion that supports the water flow member,
A drain plug device configured such that at least a portion of the support portion that comes into contact with the supported portion moves up and down, so that the plug lid moves up and down,
The supported part has a inserted part through which the supporting part can be inserted,
By setting the support portion not to be inserted into the inserted portion, a drawable state in which the water passing member can be pulled out from the pipe, and a state in which the support portion is inserted into the inserted portion. Thus, the drain plug device is configured to be able to select a withdrawal restriction state in which the drawing of the water passage member from the pipe is not easier than the state where the withdrawal is possible.

  In addition, the “removal restriction state” means, for example, a state in which a force larger than that required for pulling out the water-permeable member in a pullable state is required when pulling out the water-permeable member from the pipe. Even when the water member is pulled upward, it usually means a state in which the water passage member cannot be pulled out from the pipe (unless the water passage member or the support portion is destroyed).

  According to said means 1, the to-be-inserted part is provided in the to-be-supported part of the water-permeable member, and the water-permeable member can be withdrawn from the pipe by not inserting the support part into the to-be-inserted part. On the other hand, by inserting the support portion with respect to the insertion portion, the water passage member cannot be easily pulled out from the pipe (withdrawal restriction state). Therefore, without preparing a plurality of types of water-permeable members, it can be selectively set to one of a pullable state and a pulling-out restricted state depending on the situation on the spot. As a result, it is possible to cope with both the case where the water passage member can be pulled out from the pipe and the case where the water passage member is not easily pulled out from the pipe, while effectively suppressing an increase in cost. can do.

  Mean 2. Of the supported portion when the drainage port is opened in the pullable state, the portion placed on the support portion, and the supported when the drainage port is opened in the withdrawal restriction state The drain plug device of the means 1 is characterized in that the part placed on the support part among the parts is provided at substantially the same position along the axial direction of the pipe.

  Note that “substantially the same” is intended to include not only the case where they are exactly the same but also the case where there is a slight deviation.

  According to the above means 2, the amount of vertical movement (lift amount) of the plug lid can be made the same in both the withdrawable state and the withdrawing restricted state. Thereby, the situation where drainage capacity changes with conditions can be prevented more reliably.

Means 3. The supported portion is
In the withdrawable state, at least the drainable contact portion that comes into contact with the support portion when the drain port is open
A protrusion that is adjacent to the pullable contact portion, extends downward from the pullable contact portion, and is formed with the inserted portion;
3. The drain plug device according to means 1 or 2, wherein the protrusion has a width reducing portion that gradually decreases in width downward.

  According to the means 3, the protrusion has the width reduction portion. Therefore, even if the water passage member is inserted (dropped) into the pipe with the projection portion positioned vertically above the support portion, the water passage is performed when the projection portion contacts the support portion. A member rotates and it becomes easy to slide a protrusion part from a support part. For this reason, it is difficult to cause a situation in which the protruding portion is maintained on the support portion, and the support portion supports the contact portion when it can be pulled out, that is, the water passage member is in a normal position in the pullable state. Arranging can be done very easily. As a result, excellent convenience can be obtained.

  Means 4. Means 1 to 3 are configured so that, even if the water flow member is pulled upward in the pulling-out restricted state, the water flow member is not pullable or difficult to pull out from the pipe. The drain plug device according to any one of the above.

  According to the means 4, even when the water passage member is pulled upward, the water passage member cannot be easily pulled out from the pipe, and the water passage member can be prevented from coming off firmly. Thereby, the prevention of theft of the water passage member and the stopper lid supported by the member can be more effectively achieved.

  In addition, the said means 4 ensures these intensity | strengths enough so that a water-permeable member (especially site | part which comprises a to-be-inserted part) and a support part may not deform | transform easily, and passes a to-be-inserted part among support parts. Thus, the length of the portion located on the center side of the pipe is made sufficiently larger than the inserted portion (that is, the support portion does not come out of the inserted portion even if the support portion and the water passage member are slightly deformed). It can be realized by setting the state. In addition, the apparatus which concerns on Claim 4 can be installed by the method of inserting a support part into the to-be-inserted part of this water-permeable member, for example, after setting a water-permeable member in the predetermined position in piping. .

Means 5. Extraction means for extracting the support portion from the inserted portion in the extraction restricted state;
The drain plug device according to any one of claims 1 to 3, further comprising insertion means for disposing the support portion with respect to the insertion portion in a state that is not in the pulling-out restricted state.

  According to the means 5, the support part can be pulled out from the inserted part by the extracting means even in the withdrawal restricted state, and as a result the water passage member can be pulled out from the pipe even in the withdrawal restricted state. . Therefore, cleaning, maintenance, and the like of the water passage member, the plug lid, and the inner peripheral surface of the pipe can be easily performed.

  Further, in a state that is not in the withdrawal restricted state, the support portion can be disposed on the inserted portion by the insertion means, and the withdrawal restricted state can be obtained. Therefore, it is possible to set the pull-out restricted state relatively easily, and it is possible to improve workability during installation and maintenance of the apparatus and during cleaning.

  The extraction means and the insertion means are provided, for example, in a portion of the supported portion that can come into contact with the support portion. A portion where the insertion portion is present in the support portion (for example, the protruding portion in the means 3) can be constituted by an inclined portion that can be elastically deformed along the radial direction of the pipe. In addition, for example, the extraction means and the insertion means can apply a force from the water passage member to the support portion so that the protrusion amount of the support portion into the pipe can be reduced from the protrusion amount during normal use. Can also be configured.

In 1st Embodiment, it is sectional drawing which shows the drain plug apparatus etc. in a drawable state. It is a perspective view of a water flow member etc. in a 1st embodiment. In 1st Embodiment, it is sectional drawing which shows the drain plug apparatus etc. in a pulling-out control state. In 1st Embodiment, it is sectional drawing for demonstrating the installation method of the drain plug device at the time of setting it as an extraction | drawer control state. In 2nd Embodiment, it is sectional drawing which shows the drain plug apparatus etc. in a pulling-out control state. It is a cross-sectional schematic diagram which shows structures, such as a water flow member in 2nd Embodiment. In 2nd Embodiment, it is sectional drawing of the drain plug apparatus etc. for demonstrating one process at the time of removing a water flow member etc. from piping. In 2nd Embodiment, it is sectional drawing of the drain plug apparatus etc. for demonstrating one process at the time of removing a water flow member etc. from piping. It is a perspective view, such as a water-permeable member for showing the slit part as an extraction means in another embodiment, and an insertion means. It is a perspective view, such as a water-permeable member for showing the slit part as an extraction means in another embodiment, and an insertion means. It is sectional drawing, such as a drain plug device for demonstrating the structure of the support part 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 basin 100 as a tank body, and includes a pipe 2, a plug lid side mechanism portion 4, a support shaft 5, a plug lid 6, and water flow. And a member 7. The washbasin 100 includes a bottom wall portion 101 that constitutes a bottom portion thereof. The bottom wall portion 101 includes a cylindrical standing portion 102 that extends in the vertical direction and a lower end of the standing portion 102. An annular projecting portion 103 that protrudes inward in the radial direction is formed. A drain port 104 is formed on the inner periphery of the overhang portion 103.

  The pipe 2 is a pipe body through which drainage from the basin 100 flows, and includes a drain port member 21 and a drain pipe 3 connected in series.

  The drain port member 21 is formed in a cylindrical shape, and is inserted into the drain port 104 so that its own central axis and the central axis of the drain port 104 substantially coincide with each other. Further, the drain port member 21 includes a flange portion 22 formed to protrude radially outward at the upper end portion thereof, and a male screw portion 23 formed on the outer periphery on the lower side of the flange portion 22.

  The drainage pipe 3 has a cylindrical shape extending along the vertical direction, and includes a female screw portion 31 capable of screwing the male screw portion 23 on the inner periphery of one end portion (upper end portion) thereof. Then, in a state where the flange portion 22 is disposed on the overhang portion 103, the male screw portion 23 is screwed into the female screw portion 31, and the overhang portion 103 is sandwiched between the upper end surface of the flange portion 22 and the drainage pipe 3. The drain pipe 3 is connected to the drain port member 21 and is attached to the basin 100. In the present embodiment, an annular seal member 8 made of an elastically deformable material is interposed between the upper end surface of the drainage pipe 3 and the basin 100, and the drainage is discharged by the seal member 8. Water leakage from the mouth member 21 and the drainage pipe 3 (pipe 2) and the basin 100 is prevented.

  In addition, from the drain pipe 3, the cylindrical attachment pipe 9 projects outwardly in a branched state. The attachment tube 9 is formed so as to protrude in the horizontal direction from the outer periphery of the drainage pipe 3, and its own internal space communicates with the internal space of the drainage pipe 3. In addition, a pair of mounting holes (not shown) having a rotationally symmetric shape with respect to the central axis of the mounting pipe 9 are formed at the end portion of the mounting pipe 9 located on the opposite side of the drain pipe 3. ing.

  The plug lid side mechanism portion 4 is attached in a state of being inserted through the attachment tube 9 and includes a rotation portion 41, a movement direction conversion portion 42, and a case member 43.

  The rotating portion 41 protrudes from the inside of the case member 43 to the outside, and this protruding portion is inserted through the attachment tube 9. Further, the rotation part 41 is rotatable about a rotation axis that is coaxial with the central axis of the attachment tube 9. Furthermore, the rotating part 41 has a rod-like support part 44 protruding into the drain pipe 3 on the outer peripheral side (the outer peripheral side of the end face located on the inner space side of the drain pipe 3) in the axial end face. .

  The support portion 44 has a cylindrical shape and is relatively short so that the tip thereof does not reach the central axis of the drain pipe 3. Moreover, the support part 44 moves up and down while rotating by the rotation part 41 rotating.

  The movement direction conversion unit 42 is connected to a transmission member (not shown) made of, for example, a wire that reciprocates according to the displacement of a predetermined operation member (for example, an operation button or an operation handle). The reciprocating motion is converted into the rotational motion of the rotational portion 41. The movement direction conversion unit 42 is, for example, a reciprocally movable rack in which the transmission member is connected and a plurality of teeth are formed, meshed with the rack, and coaxial with the rotation unit 41 And a rotatable gear (pinion) fixed by the. In such a movement direction conversion unit 42, the rack reciprocates as the transmission member reciprocates, the gear rotates, and the rotation unit 41 rotates as the gear rotates. The support portion 44 moves up and down while rotating. In addition, the structure of the motion direction conversion part 42 in this embodiment is an illustration, Comprising: The structure of the motion direction conversion part 42 can be changed suitably.

  The case member 43 is used to attach the stopper lid side mechanism portion 4 to the attachment tube 9 while the movement direction conversion portion 42 is accommodated therein. In the present embodiment, the case member 43 includes a plurality of claw portions (not shown) extending in parallel with the rotation axis of the rotation portion 41, and the claw portions are the attachment hole portions of the attachment tube 9. Is inserted into the mounting tube 9 and is locked to the mounting tube 9. Thereby, the stopper lid side mechanism part 4 is in a state of being attached to the attachment pipe 9. In addition, the attachment method of the plug lid side mechanism part 4 with respect to the attachment pipe | tube 9 can be changed suitably, For example, it is good also as attaching the plug lid side mechanism part 4 with a quick fastener, a screw, etc.

  The support shaft 5 is disposed substantially at the center of the pipe 2 and has a rod shape extending in the vertical direction. Further, the upper end of the support shaft 5 is attached to the center of the back surface of the stopper lid 6, thereby supporting the stopper lid 6. Furthermore, the support shaft 5 includes a shock absorber spring 51 that can be expanded and contracted along the axial direction. When the support shaft 5 is pressed from above, the support shaft 5 is compressed along the axial direction. It is designed to deform. Accordingly, when a downward force is applied to the support shaft 5 such as when a heavy object is placed on the stopper lid 6 when the drain port 104 is in the open state, the support shaft 5 and the water passage member 7 are applied. Further, it is possible to prevent damage to the support portion 44 and the like.

  The plug lid 6 includes a disk-shaped plug lid main body portion 61 made of resin or the like, and a packing portion 62 attached to the plug lid main body portion 61. The packing portion 62 is formed in an annular shape by an elastically deformable material (for example, rubber, resin, etc.), and is fitted into the outer periphery of the attached portion 63 provided on the outer peripheral side of the back surface of the plug lid main body portion 61. It is supposed to be in a state.

  The water flow member 7 is arranged in a state that can move up and down in the pipe 2, and as shown in FIG. 2 (only a part of the support shaft 5 is shown in FIG. 2), The arm part 72 (not shown in FIG. 1 etc.) is provided. The arm portion 72 connects the supported portion 71 (the inner periphery of the outer peripheral wall portion 711 described below) and the outer periphery of the support shaft 5, and as a result, the plug lid 6 is supported by the water passage member 7 on the support shaft 5. It is in the state supported indirectly via. The stopper lid 6 may be directly supported by the water passage member 7.

  The supported part 71 is disposed in the pipe 2 along the inner peripheral surface of the pipe 2, and is a part that is placed on the support part 44. When the supported portion 71 is placed on the support portion 44, the water flow member 7 is supported in the pipe 2 by the support portion 44. And when the support part 44 moves down, the stopper lid 6 moves down together with the water flow member 7 and the support shaft 5, and the entire outer peripheral part of the packing part 62 comes into contact with the bottom wall part 101. Is supposed to be closed. On the other hand, when the support part 44 is moved upward, the stopper cover 6 is moved upward together with the water passage member 7 and the support shaft 5, and the packing part 62 is separated from the bottom wall part 101, so that the drain port 104 is opened. It has come to be.

  However, in this embodiment, in a state where the support portion 44 is disposed at the lowest position (a state where the drainage port 104 is closed), the supported portion 71 is not placed on the support portion 44. Has been. As a result, when the drain port 104 is closed, the packing portion 62 can be brought into contact with the bottom wall portion 101 more reliably, and good water tightness can be obtained.

  Further, the supported portion 71 includes an outer peripheral wall portion 711 and a protruding portion 712.

  The outer peripheral wall portion 711 has a cylindrical shape and is relatively long along the axial direction (for example, has a length equal to or greater than the minimum inner diameter of the pipe 2). Therefore, even if the water flow member 7 is inclined with respect to the pipe 2 as the support part 44 is moved upward, at the time when the inclination is small, the outer peripheral wall part 711 (particularly, the support part 44 across the central axis of the pipe 2) The part located on the opposite side) can be more reliably brought into contact with the pipe 2, and the further inclination of the water passage member 7 can be effectively suppressed. As a result, it is possible to suppress the inclination of the support shaft 5 and the plug lid 6 with respect to the pipe 2, and when the drain port 104 of the bottom wall portion 101 is closed, it is sealed by the plug lid 6 (packing portion 62). It can suppress that the center axis | shaft of the stopper lid 6 shift | deviates largely with respect to the center of a site | part (sealed site | part), and can acquire favorable watertightness by extension. Further, it is possible to ensure a good aesthetic when the drain port 104 is opened.

  The protruding portion 712 is a portion that protrudes downward from the outer peripheral wall portion 711, and has a shape that gradually decreases in width from the base end portion that continues to the outer peripheral wall portion 711 to the distal end portion that is positioned at the lowermost position (reverse to front view). It has a triangular shape. In other words, the protruding portion 712 includes a width reducing portion 712A that gradually decreases in width downward.

  Further, the projection 712 is formed with an insertion portion 712B having an inverted triangular shape in front view penetrating from the outer periphery to the inner periphery. And in this embodiment, it can be made the extraction possible state which enables extraction of the water flow member 7 from the piping 2 by setting it as the state which does not penetrate the support part 44 with respect to the to-be-inserted part 712B. In the drawable state, at least when the drainage port 104 is in the open state, the lower end surface of the outer peripheral wall portion 711 is placed (contacted) with respect to the support portion 44. In the present embodiment, a pullable contact portion 711A is configured by the lower end surface of the outer peripheral wall portion 711, and the protrusion 712 is adjacent to the pullable contact portion 711A.

  In this embodiment, the unit 10 (see FIG. 1) including the water-permeable member 7, the support shaft 5, and the plug lid 6 is removed from the pipe 2 by pulling up the plug lid 6 and the support shaft 5 from the front side of the basin 100. It can be removed at once. And in the state which removed the said unit 10 from the piping 2, since only the support part 44 protrudes in the inside of the piping 2, the maintenance property and the cleaning property can be aimed at. .

  Further, the drawable state can be realized by simply inserting (dropping) the water passage member 7 into the pipe 2 without positioning or the like. Even if the water-permeable member 7 is inserted (dropped) into the pipe 2 with the protrusion 712 positioned vertically above the support portion 44, the protrusion 712 has the width reduction portion 712A as described above. When the protruding portion 712 comes into contact with the support portion 44, the water passing member 7 rotates, and the protruding portion 712 easily slides down from the support portion 44. Therefore, a situation in which the protruding portion 712 is kept on the support portion 44 hardly occurs.

  On the other hand, as shown in FIG. 3, by setting the support portion 44 to be inserted into the insertion portion 712B, a drawing restriction state in which it is not easy to pull out the water passage member 7 from the pipe 2 as compared with the pullable state. Is possible. That is, the pullable state and the pulling-out restricted state can be selected.

  In this embodiment, even if the water passage member 7 is pulled upward by pulling the stopper lid 6 or the like upward in the pulling-out restricted state, the water passage member 7 cannot be pulled out from the pipe 2 or is difficult to pull out. It is configured as follows. In the present embodiment, in order to achieve this, the water passing member 7 (particularly the protruding portion 712) and the support portion 44 are sufficiently secured so that they are not easily deformed, and the inserted portion of the support portion 44 is inserted. A length L of a portion that passes through 712B and is located closer to the center of the pipe 2 than the inserted portion 712B is made sufficiently large. The length L can be moved when the water passage member 7 is moved relative to the pipe 2 along the radial direction of the pipe 2 in a state where the pipe 2 and the water passage member 7 are arranged coaxially, for example. It is considered to be sufficiently larger than the amount.

  Further, in the pulling-out restricted state, at least when the drain port 104 is in the open state, the linear portion 71A (FIG. 2) located on the upper side of the portion of the supported portion 71 that forms the inserted portion 712B with respect to the supporting portion 44. Reference) is placed (contacted). Here, in the present embodiment, in a state where the water passage member 7 is disposed in the pipe 2, the straight portion 71A and the pullable contact portion 711A are substantially at the same position (the same height) along the axial direction of the pipe 2. ). That is, the portion of the supported portion 71 that is placed on the support portion 44 when the drain port 104 is opened in the pullable state (contact portion 711A when pullable), and the drain port 104 is opened in the pullout restricted state. The part (straight line part 71 </ b> A) placed on the support part 44 of the supported part 71 in the state is provided at substantially the same position along the axial direction of the pipe 2.

  For example, as shown in FIG. 4, the pulling-out restricted state is set in such a manner that the water passage member 7 is set at a predetermined position in the pipe 2, and then the rotating portion 41 is inserted into the attachment pipe 9. This can be realized by a method of inserting the support portion 44 into the insertion portion 712B of the member 7.

  As described above in detail, according to the present embodiment, even if a plurality of types of water passage members are not prepared, it is selectively set as one of a pullable state and a pulling-out restricted state depending on the situation at that place. be able to. As a result, both the case where the water passage member 7 can be pulled out from the pipe 2 and the case where the water passage member 7 is not easily pulled out from the pipe 2 can be handled, and the cost can be increased. It can be effectively suppressed.

  Further, since the straight portion 71A and the pullable contact portion 711A are provided at substantially the same position along the axial direction of the pipe 2, the plug lid 6 moves up and down both in the drawable state and in the withdrawal restricted state. The amount (lift amount) can be the same. Thereby, the situation where drainage capacity changes with conditions can be prevented more reliably.

  Further, since the protruding portion 712 has a width reducing portion 712A, when the water passage member 7 is inserted (dropped) into the pipe 2, the support portion 44 supports the contact portion 711A when it can be pulled out, that is, It is possible to very easily arrange the water passage member 7 at a normal position in the drawable state. As a result, excellent convenience can be obtained.

In addition, according to the present embodiment, even when the water flow member 7 is pulled upward, the water flow member 7 is not easily pulled out from the pipe 2, and the water flow member 7 is firmly pulled out. Can be prevented. Thereby, prevention of theft etc. of the water-permeable member 7 or the plug lid 6 supported indirectly by this can be achieved more effectively.
[Second Embodiment]
Next, the second embodiment will be described focusing on differences from the first embodiment. In the said 1st Embodiment, even if it pulls the water flow member 7 upwards in the extraction control state, it is comprised so that the water flow member 7 cannot be pulled out from the piping 2, or it becomes difficult to pull out. On the other hand, in the second embodiment, when the water passage member 7 is pulled upward in the pulling-out restricted state, the support portion 44 is removed from the inserted portion 712B, and the water passage member 7 is pulled out from the pipe 2. Be able to.

  This point will be described in more detail. As shown in FIGS. 5 and 6, in the second embodiment, the protrusion 712 is located on the lower side of the portion of the supported portion 71 that forms the inserted portion 712 </ b> B. An inner inclined portion 712 </ b> C as an extraction means that gradually lowers toward the outer periphery of the water-permeable member 7 at a position where the water-permeable member 7 is pulled upward. It has. In addition, the protrusion part 712 is elastically deformable along the radial direction of the water passage member 7 by using the connection part to the outer peripheral wall part 711 as a base point because the water passage member 7 is formed of resin or the like. Moreover, compared with the said 1st Embodiment, when the support part 44 is shortened a little, the part of the support part 44 which passes the to-be-inserted part 712B and is located in the center side of the piping 2 rather than the to-be-inserted part 712B. The length is slightly smaller than the length L in the first embodiment.

  For example, when the water passage member 7 is pulled upward by pulling up the stopper lid 6, the inner inclined portion 712C comes into contact with the support portion 44 as shown in FIG. When pulled further upward, the protruding portion 712 is gradually elastically deformed radially inward. When the protruding portion 712 is sufficiently elastically deformed and the locking of the inner inclined portion 712C with respect to the support portion 44 is released, the support portion 44 comes off from the insertion portion 712B as shown in FIG. Therefore, the water flow member 7 is pulled out of the water. That is, the support portion 44 can be removed from the insertion portion 712B in the pulling-out restricted state by the inner inclined portion 712C.

  In the second embodiment, the water passing member 7 pulled out from the pipe 2 is pushed into the pipe 2 in a state where the inserted part 712B of the water passing member 7 is located above the support part 44. As a result, the support portion 44 is inserted into the inserted portion 712B so that the extraction restricted state can be achieved.

  This point will be described in more detail. An outer inclined portion as an insertion means that gradually increases toward the outer periphery of the water passing member 7 on the tip surface of the protrusion 712 located below the inserted portion 712B. 712D (see FIG. 5 and the like) is provided.

  Then, with the inserted portion 712 </ b> B positioned above the support portion 44, the outer inclined portion 712 </ b> D contacts the support portion 44 by pushing the water passage member 7 into the pipe 2. By pushing the member 7 further downward, the protrusion 712 is gradually elastically deformed radially inward. When the protrusion 712 is sufficiently elastically deformed, the locking of the outer inclined portion 712D with respect to the support portion 44 is released, and the outer inclined portion 712D moves downward from the support portion 44 while moving to the inserted portion 712B. The support part 44 is inserted. Thereby, it will be in an extraction regulation state. That is, the outer inclined portion 712D enables the support portion 44 to be disposed with respect to the insertion portion 712B in a state that is not in the pulling-out restricted state.

  As described above, according to the second embodiment, the same operational effects as those of the first embodiment are basically obtained. That is, it is possible to cope with both the case where the water passage member 7 can be pulled out from the pipe 2 and the case where the water passage member 7 is not easily pulled out from the pipe 2, while suppressing increase in cost, etc. Can be achieved.

  In addition, according to the second embodiment, the support member 44 is pulled out from the inserted portion 712B by the inner inclined portion 712C by pulling the water-passing member 7 up intentionally even in the pull-out restricted state. As a result, the water-permeable member 7 can be pulled out from the pipe 2. Therefore, cleaning, maintenance, and the like of the water passing member 7, the plug lid 6, and the inner peripheral surface of the pipe 2 can be easily performed.

  Further, in the state that is not the withdrawal restricted state, the support portion 44 can be disposed on the inserted portion 712B by the outer inclined portion 712D, and the withdrawal restricted state can be obtained. Therefore, it is possible to set the pull-out restricted state relatively easily, and it is possible to improve workability during installation and maintenance of the apparatus and during cleaning.

  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) In the second embodiment, the extraction means is constituted by the inner inclined portion 712C and the insertion means is constituted by the outer inclined portion 712D. However, the extraction means and the insertion means are realized by other configurations. May be. Therefore, for example, force is applied to the support portion 44 from the water passing member 7 that moves the extraction means and the insertion means in the vertical direction or the relative rotation direction with respect to the pipe 2, so that the support portion 44 enters the pipe 2. You may comprise by what can reduce protrusion amount from the protrusion amount at the time of normal use (For example, the spring member etc. which support the support part 44 in the state which can be displaced along the axial direction). In this case, when the water flow member 7 is pulled upward or the water flow member 7 is pushed into the pipe 2, a force is applied from the water flow member 7 to the support portion 44, so that the pipe 2 The amount of protrusion of the support portion 44 inward is reduced, and as a result, the support portion 44 can be removed from the inserted portion 712B, or the support portion 44 can be disposed on the inserted portion 712B.

  Further, as shown in FIGS. 9 and 10, the extraction means and the insertion means are, for example, slits provided on the protrusion 712 and communicating with the insertion portion 712 </ b> B and having a width smaller than the outer diameter of the support portion 44. You may comprise by the parts 73 and 74. FIG. In this case, the slits 73 and 74 in the water flow member 7 are removed from the support portion 44 by rotating the water flow member 7 relative to the pipe 2 or applying a vertical force to the water flow member 7. By applying a force to the part to be formed, the width of the slits 73 and 74 is increased. As a result, the support part 44 is pulled out from the inserted part 712B, or the support part 44 is arranged on the inserted part 712B. It becomes possible to do.

  (B) In the above embodiment, the supported portion 71 is annular, but the supported portion 71 may be non-annular. In addition, when the supported portion 71 is non-annular, the supported portion 71 falls from the support portion 44 due to the relative rotation of the water passing member 7 with respect to the pipe 2 when the supported portion 71 is in a drawable state. However, such a concern can be eliminated by configuring so that the relative rotation of the water passage member 7 with respect to the pipe 2 is restricted at least in a drawable state.

  (C) In the above embodiment, the support portion 44 protrudes from the end surface in the axial direction of the rotation portion 41 and is configured to move up and down while rotating as the rotation portion 41 rotates. However, the configuration is not limited to this. Therefore, for example, as shown in FIG. 11, the support portion 45 protrudes from the outer periphery of the rotation portion 46 that can be rotated by a rotation shaft that extends in the horizontal direction. You may comprise so that the water flow member 7 supported by this may move up and down.

  (D) In the above embodiment, the pipe 2 includes the drain port member 21 and the drain pipe 3, but the drain pipe 3 is directly fixed to the basin 100 without using the drain port member 21. Alternatively, the pipe 2 may be constituted only by the drain pipe 3.

  (E) In the above embodiment, the drain lid 104 is closed by the stopper lid 6 (packing portion 62) coming into contact with the bottom wall portion 101. However, the stopper lid 6 (packing portion 62) is The drain port 104 may be configured to be closed by contacting the drain port member 21.

  (F) In the said embodiment, although the washbasin 100 is illustrated as a tank body, the tank body which can apply the technical idea of this invention is not limited to a washbasin. Therefore, for example, the technical idea of the present invention may be applied to a bathtub or a kitchen sink.

  DESCRIPTION OF SYMBOLS 1 ... Drain plug apparatus, 2 ... Piping, 6 ... Plug lid, 44 ... Support part, 7 ... Water-permeable member, 71 ... Supported part, 100 ... Basin (tank), 104 ... Drain port, 711A ... Removable Time contact portion, 712 ... projection portion, 712A ... width reduction portion, 712B ... inserted portion, 712C ... inner inclined portion (extraction means), 712D ... outer inclined portion (insertion means).

Claims (5)

A stopper lid that can be moved up and down to open and close the drain of the tank body;
A drainage member having a supported portion arranged along the inner peripheral surface of the pipe in the drainage pipe, and directly or indirectly supporting the stopper lid;
Protruding into the pipe, and at least when the drain outlet is in an open state, by contacting the supported portion, a support portion that supports the water flow member,
A drain plug device configured such that at least a portion of the support portion that comes into contact with the supported portion moves up and down, so that the plug lid moves up and down,
The supported part has a inserted part through which the supporting part can be inserted,
By setting the support portion not to be inserted into the inserted portion, a drawable state in which the water passing member can be pulled out from the pipe, and a state in which the support portion is inserted into the inserted portion. Thus, the drain plug device is configured to be able to select a withdrawal restriction state in which the drawing of the water passage member from the pipe is not easier than the state where the withdrawal is possible.   Of the supported portion when the drainage port is opened in the pullable state, the portion placed on the support portion, and the supported when the drainage port is opened in the withdrawal restriction state The drain plug device according to claim 1, wherein a portion of the portion placed on the support portion is provided at substantially the same position along the axial direction of the pipe. The supported portion is
In the withdrawable state, at least the drainable contact portion that comes into contact with the support portion when the drain port is open
A protrusion that is adjacent to the pullable contact portion, extends downward from the pullable contact portion, and is formed with the inserted portion;
The drain plug device according to claim 1, wherein the protrusion has a width reducing portion that gradually decreases in width downward.   In the said extraction regulation state, even if it pulls the said water flow member upwards, it is comprised so that the said water flow member cannot be pulled out from the said piping, or it becomes difficult to pull out. The drain plug device according to any one of the above. Extraction means for extracting the support portion from the inserted portion in the extraction restricted state;
The drain plug device according to any one of claims 1 to 3, further comprising insertion means for disposing the support portion with respect to the insertion portion in a state that is not in the pulling-out restricted state.

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