JP2019056229A - Drain plug device - Google Patents

Abstract

To provide a drain plug device capable of extremely effectively preventing water leakage to the outside of a piping, and improving sanitation and operability.SOLUTION: A drain plug device comprises a plug cover for opening/closing a drain port, a pipe 3 having a body pipe 31 and a turning part storage part 32, a turning part 42 relatively turnable in relation to the turning part storage part 32 in the turning part storage part 32, and a vertically moving part 43 vertically moving following the relative turning of the turning part 42 in relation to the turning part storage part 32. The turning part storage part 32 has a flow passage side opening 32A opened in the body pipe 31, and the pipe 3 has a diagonal cylinder part extended diagonally upward from the turning part storage part 32. In the turning part storage part 32, a seal part 5 for preventing water inflow into a space communicated with an inner space of the diagonal cylinder part out of the inner space of the turning part storage part 32 from the body pipe 31 side, and the whole part of the seal part 5 is disposed at a near position of the flow passage side opening 32A in the turning part storage part 32.SELECTED DRAWING: Figure 3

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 includes a plug lid provided at a drain port of a tank body (for example, a bathtub or a wash bowl), and opens and closes the drain port by moving the plug lid up and down.

  As the drain plug device, a pipe having a main body pipe extending in the vertical direction for flowing waste water, a support shaft disposed in the main body pipe and having the cap lid attached to the upper end portion, and the support shaft can be moved up and down. The driving force generated by the displacement of the stopper lid side mechanism (support mechanism) and a predetermined operation section (for example, an operation button that can be reciprocated or an operation handle that can be rotated) to the support shaft side. And a transmission body (for example, a wire or the like) for transmitting the above is generally known. In this drain plug device, the support shaft and the plug lid move up and down by displacing the operation portion, and the drain port is opened and closed.

  Further, in recent years, a rotating part inserted in a state of being rotatable relative to a cylindrical rotating part accommodating part (attachment pipe) branched from the main body pipe, and the main body from the end face on the main body pipe side in the rotating part. There has been proposed a drain plug device that includes a short protrusion-like vertical movement part (supporting protrusion) that protrudes into a pipe and indirectly supports a plug lid by the vertical movement part (for example, Patent Document 1) reference). In the drain plug device, when the rotating portion is rotated in accordance with the displacement of the operation portion, the vertical movement portion and the plug lid are moved up and down, and as a result, the drain port is opened and closed. Yes.

JP 2012-36558 A

  By the way, since the inside of the rotating part accommodating part is in a state communicating with the inside of the main body pipe, water (drainage) flowing through the main body pipe can flow into the rotating part accommodating part. If water flows into the rotating part accommodating part, for example, a situation may occur where water leaks to the outside of the pipe through the opening on the opposite side of the main body tube in the rotating part accommodating part. In addition, due to the influence of the water that has flowed into the rotating part accommodating part, the parts arranged in the rotating part accommodating part such as the rotating part and the rotating part accommodating part are soiled, leading to a decrease in hygiene. There is a possibility that foreign matters and dirt adhere to (deposit on) the rotating portion, thereby hindering the smooth rotation of the rotating portion, and eventually operability and convenience may be impaired.

  This invention is made | formed in view of the said situation, The objective can improve the sanitary property, operativity, etc. while being able to prevent the leakage of the water with respect to the exterior of piping extremely effectively. It is to provide a drain plug device.

  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 plug lid for opening and closing the drain of the tank body;
A main body pipe through which the drainage flows through the drainage port, and a pipe having a cylindrical rotating portion accommodating portion extending in a horizontal direction from the main body pipe;
A rotating part disposed in the rotating part accommodating part and rotatable relative to the rotating part accommodating part;
The rotating portion protrudes from the end surface on the main body tube side into the main body tube, and can be moved up and down with relative rotation of the rotating portion with respect to the rotating portion receiving portion, and has its own up and down movement. A drainage stopper device comprising a vertically moving part for vertically moving the stopper lid,
The rotating portion accommodating portion includes a flow channel side opening that opens toward the inside of the main body tube,
The pipe is configured to extend obliquely upward from the rotating part accommodating part, open at an end opposite to the rotating part accommodating part, and not relatively displaceable with respect to the main body pipe. It has an oblique tube part,
In the turning portion accommodating portion, a seal portion is provided to prevent inflow of water from the main body tube side to a space communicating with the inner space of the oblique cylindrical portion of the inner space of the turning portion accommodating portion.
The drain plug device, wherein the entire seal portion is disposed in the vicinity of the flow path side opening in the rotating portion housing portion.

  According to the above means 1, the seal portion for preventing the inflow of water from the main body tube side to the space communicating with the internal space of the oblique cylinder portion in the internal space of the rotary portion storage portion is provided in the rotary portion storage portion. Is provided. Accordingly, even if water such as drainage flowing through the main body pipe flows into the rotating portion accommodating portion, the water will infiltrate deeper than the seal portion in the rotating portion accommodating portion (an oblique cylinder portion side). It can be prevented more reliably.

  Further, in consideration of a case where the seal part is damaged, according to the above means 1, an oblique cylinder part extending obliquely upward from the rotating part accommodating part is provided, and the oblique cylinder part is formed of the main body tube. On the other hand, it cannot be relatively displaced, and is not easily deformed. Therefore, even if water infiltrates deeper than the seal part due to damage to the seal part or the like, water can be blocked by the oblique cylinder part, and water leaks from the end opening of the oblique cylinder part. It can be made into the state which does not take out. As a result, water leakage to the outside of the pipe can be prevented very effectively.

  Further, according to the above means 1, the whole seal portion is disposed in the vicinity of the flow path side opening (opening opening toward the inside of the main body pipe in the rotating portion accommodating portion). Therefore, in the parts located in the rotating part accommodating part such as the rotating part and the rotating part accommodating part, the range that can come into contact with the drainage can be made very narrow, the parts located in the rotating part accommodating part, It is possible to prevent more reliably the occurrence of fouling and adhesion of foreign matters in a wide range of the rotating portion accommodating portion. As a result, it is possible to improve the hygiene, and it is possible to smoothly rotate the rotating part for a longer period of time, thereby improving convenience and operability.

  The “horizontal direction” includes not only a strict horizontal direction but also a direction slightly inclined (for example, 10 ° or less) with respect to the horizontal direction. In addition, the slanted cylinder portion is “incapable of relative displacement with respect to the main body tube”, for example, the slanted cylinder portion is formed by a relatively hard or semi-rigid resin or metal and is not normally greatly deformed. This means that the tube is not relatively easily deformable. Furthermore, “the entire seal portion is disposed in the vicinity of the flow path side opening” means, for example, that the entire seal portion is 20 mm from the flow path side opening along the axial direction of the rotating portion accommodating portion. It is located within the range. In addition, for example, when the main body tube has a cylindrical shape and the flow path side opening has a curved shape corresponding to the inner peripheral surface of the main body pipe, the position of the flow path side opening along the axial direction of the rotating portion accommodating portion is If it is not constant, the portion of the flow passage side opening that is closest to the cylindrical portion along the axial direction of the rotating portion housing portion (close to the end of the rotating portion housing portion opposite to the flow channel side opening) is sealed. This is a reference for the arrangement position of the part. Moreover, it is preferable to arrange | position the whole seal | sticker part in the state which adjoined to the flow path side opening as much as possible. Therefore, it is preferable to arrange the entire seal portion within 15 mm from the flow path side opening, more preferably within 10 mm from the flow path side opening, and even more preferably within 8 mm from the flow path side opening.

Mean 2. The pipe includes a sealed water portion in which sealed water is stored,
The oblique tube portion has an end opening at an end opposite to the rotating portion housing portion,
The drain plug device according to claim 1, wherein the end opening is configured to be positioned above a sealing surface in the sealing portion.

  The “sealed surface” means the surface of the sealed water when the maximum sealed water is stored in the sealed portion.

  According to the said means 2, the edge part opening in an oblique cylinder part is comprised so that it may be located above a sealing surface. Therefore, in a configuration in which the seal portion is immersed in the seal water, even if the seal portion is damaged and the seal water flows into the oblique tube portion, the seal water more reliably flows out from the end opening. Can be prevented. As a result, water leakage to the outside of the pipe can be prevented more reliably.

Means 3. The tank body includes a bottom surface portion constituting a bottom portion thereof,
The oblique cylinder part has an end opening located on the side opposite to the rotating part accommodating part,
The drain plug device according to means 1 or 2, wherein the end opening is configured to be positioned above the bottom surface.

  Note that the end openings defined by the means 2 and the means 3 are respectively the same, and when the means 3 is subordinate to the means 2, it is intended that there are a plurality of end openings. Not what you want. In this respect, the following means 8 subordinate to the above means 2 or 3 is the same.

  According to the said means 3, the edge part opening in an oblique cylinder part is comprised so that it may be located above the bottom face part of a tank body. Therefore, if the seal part is damaged and water can flow into the slanted cylinder part, water will accumulate in the main body pipe even if the drainage port is open due to clogging of the pipe. Even if water is generated in the cylindrical portion, it is possible to prevent water from flowing out from the end opening as long as water does not accumulate up to a position above the bottom surface portion in the tank body. Therefore, it is possible to prevent water leakage to the outside of the piping very effectively.

Means 4. A cylindrical portion disposed on the inner periphery of the rotating portion accommodating portion;
At least a part of the rotating part is inserted into the cylindrical part,
The seal portion is
An annular fixed seal portion arranged in contact with both between the rotating portion accommodating portion and the cylindrical portion;
An annular movable seal portion disposed in contact with both between the tubular portion and the rotating portion;
When the rotating part is relatively rotated with respect to the rotating part accommodating part, the tubular member is controlled in a state where relative rotation of the cylindrical part with respect to the rotating part accommodating part is restricted by the fixed seal part. The drain plug device according to any one of means 1 to 3, wherein the rotating portion is configured to rotate relative to the portion.

  In providing the seal portion, the rotating portion is configured to rotate along the inner peripheral surface of the rotating portion accommodating portion, and between the inner peripheral surface of the rotating portion accommodating portion and the outer peripheral surface of the rotating portion. It is conceivable to provide an annular movable seal portion as the seal portion. However, in this case, the rotating seal portion has a relatively large diameter, and there is a possibility that the resistance generated when the rotating portion rotates becomes relatively large.

  In this regard, according to the means 4, the cylindrical portion is disposed on the inner periphery of the rotating portion accommodating portion, and an annular movable seal portion is provided between the cylindrical portion and the rotating portion. Therefore, the movable seal portion can have a relatively small diameter, and the frictional force generated when the rotating portion rotates can be reduced. As a result, operability can be further enhanced.

  Further, since the movable seal portion has a relatively small diameter, it is possible to improve the seal stability between the cylindrical portion and the rotating portion. Furthermore, since the force applied from the movable seal portion to the cylindrical portion when the rotating portion rotates is relatively small, relative rotation of the cylindrical portion with respect to the rotating portion accommodating portion is more reliably performed by the fixed seal portion. Therefore, the stability of the seal between the rotating portion accommodating portion and the cylindrical portion can be improved. As a result, it is possible to effectively improve the sealing performance by the seal portion, and to more reliably prevent water leakage from the pipe to the outside.

  In addition, “the state in which the relative rotation of the cylindrical portion with respect to the rotating portion accommodating portion is restricted” basically means that the rotating portion rotates when the rotating portion rotates relative to the cylindrical portion. This means a state in which the cylindrical part does not rotate relative to the part accommodating part. However, due to unintended dimensional variations in the cylindrical part or the rotating part accommodating part, the rotating part relatively rotates with respect to the cylindrical part. In doing so, a state in which the cylindrical portion can slightly rotate relative to the rotating portion accommodating portion is also included.

  Means 5. 5. The drain plug device according to claim 4, wherein at least a part of the fixed seal portion is provided at a position overlapping with the movable seal portion along the direction perpendicular to the axis of the rotating portion accommodating portion. .

  According to the means 5, at least a part of the fixed seal portion is provided at a position overlapping (overlapping) with the movable seal portion along the direction orthogonal to the axis of the rotating portion accommodating portion. Therefore, when a force is applied from the movable seal portion to the cylindrical portion as the rotating portion rotates, the force can be more reliably received by the fixed seal portion, and the cylindrical portion with respect to the rotating portion accommodating portion. Relative rotation can be more reliably regulated. As a result, it is possible to more reliably maintain good seal stability between the rotating portion accommodating portion and the cylindrical portion.

  Further, when the movable seal portion and the fixed seal portion are disposed at different positions along the axial direction of the rotating portion accommodating portion, the rotating portion or the cylindrical shape along the axial direction of the rotating portion accommodating portion. It is necessary to make the length of the part relatively large, but according to the above means 5, this is not necessary, and the length of the rotating part and the cylindrical part along the axial direction of the rotating part accommodating part is set. It can be small enough. Therefore, it is possible to reduce the cost for manufacturing. Further, it is possible to reduce the space required for installation of the device, and increase the degree of freedom of installation of the device.

Means 6. The fixed seal portion is composed of an O-ring having a circular cross section,
The drain plug device according to means 4 or 5, wherein the movable seal portion is made of an X-ring having an X-shaped cross section.

  According to the means 6, since the movable seal portion is made of the X ring, it is possible to further reduce the frictional force generated when the rotating portion rotates. As a result, the operability can be further improved. On the other hand, since the fixed seal portion is formed of an O-ring, the relative rotation of the cylindrical portion with respect to the rotating portion accommodating portion can be more reliably restricted, and the better between the rotating portion accommodating portion and the cylindrical portion. Seal stability can be obtained.

Mean 7 The rotating part is
A small-diameter portion inserted through the cylindrical portion;
A disk-shaped large-diameter portion facing the inside of the main body tube, having a larger diameter than the small-diameter portion, and being arranged in a state where the outer peripheral surface is close to the inner peripheral surface of the rotating portion accommodating portion,
The drain plug device according to any one of means 4 to 6, wherein a protruding rib portion extending along a circumferential direction of the large diameter portion is provided on an outer periphery of the large diameter portion.

  According to the said means 7, the clearance gap between a large diameter part and a rotation part accommodating part can be made smaller by a rib part. Therefore, it can prevent more reliably that a foreign material, a stain | pollution | contamination, etc. will reach to a movable seal | sticker part and a fixed seal part through between both. Thereby, the improvement of hygiene and operability can be achieved more effectively.

  In addition, if the entire outer peripheral surface of the large diameter portion is brought close to the rotating portion accommodating portion, it is necessary to rotate the rotating portion in the event that a foreign object is caught between the large diameter portion and the rotating portion accommodating portion. Although the force may increase extremely, according to the above means 7, when a foreign object is caught between the large diameter part and the rotating part accommodating part, the foreign substance is caught between the rib part and the rotating part accommodating part. Therefore, it is possible to more reliably prevent the force necessary for rotating the rotating portion from being extremely increased. As a result, it is possible to effectively suppress a decrease in operability due to the influence of foreign matter.

Means 8. A transmission unit that is disposed in the oblique cylinder unit and connected to the rotation unit and transmits a driving force generated by displacement of a predetermined operation unit to the rotation unit;
The oblique cylinder part has an end opening located on the side opposite to the rotating part accommodating part,
The drain plug device according to any one of means 1 to 7, wherein the transmission portion is configured to be detachable through the end opening.

  According to the means 8, the transmission part can be attached and detached through the end opening. For this reason, during installation or maintenance of the apparatus, the transmission unit is in an attached state (that is, a state where the transmission unit is disposed in the oblique cylindrical part and connected to the rotating unit), or in a detached state (that is, the transmission unit is It is possible to easily remove the rotating part from the oblique cylindrical part). Therefore, workability related to installation and maintenance of the apparatus can be improved.

Means 9. An operation unit that applies a driving force due to its own displacement to a portion that is configured not to come into contact with the water on the main body tube side by the seal unit among the rotating unit,
The drain plug device according to any one of means 1 to 8, wherein the operating portion is configured to be displaced by energization.

  The operation parts defined by the means 8 and the means 9 are the same, and when the means 9 is subordinate to the means 8, it is intended that a plurality of operation parts exist. is not.

  According to the means 9, the operation part constituting the power source of the rotating part is displaced by energization. Therefore, if water adheres to the operating part, there is a risk that problems such as malfunction of the operating part and electric leakage may occur. However, in the above means 9, the entire seal portion is provided in the vicinity of the flow path side opening. That is, the whole seal part is the part that operates when the drain outlet is opened and closed (for example, the rotating part and the operating part, or the rotating part, the operating part, and the part interposed between them). It is located on the opposite side and is provided corresponding to a portion that is as far away as possible from the operating portion. Therefore, even if the seal portion is damaged and water flows in, the probability that the water reaches the operating portion can be significantly reduced. As a result, it is possible to prevent the occurrence of malfunctions such as malfunction of the operation unit and electric leakage extremely effectively.

It is sectional drawing of the drain plug apparatus etc. in the cross section containing the central axis of a main body pipe | tube. It is sectional drawing of the drain plug apparatus etc. in the cross section containing the central axis of an oblique cylinder part. It is an expanded sectional view of a rotation mechanism etc. for showing composition of a rotation mechanism and a seal part. It is a disassembled perspective view of a rotation part. In another embodiment, it is sectional drawing, such as a drain plug device at the time of making an oblique cylinder part long. In another embodiment, it is sectional drawing, such as a drain plug device at the time of using a manual unit. In another embodiment, it is sectional drawing, such as a drain plug device at the time of using a manual unit, making an oblique cylinder part long.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, the drain plug device 1 is attached to a bathtub 100 as a tank body. The bathtub 100 includes a horizontal plate-shaped bottom surface portion 101 constituting the bottom portion thereof, and a peripheral wall portion 102 erected on the outer periphery of the bottom surface portion 101. Further, a drainage port 103 is formed through the bottom surface portion 101.

  The drain plug device 1 includes a drain port member 2, a pipe 3, a rotation mechanism 4, a seal unit 5 (see FIG. 3), a transmission unit 6, an electric unit 7 as an operation unit, and a plug lid unit 8. And. However, FIG. 1 schematically shows the electric unit 7.

  The drain port member 2 is formed in a cylindrical shape, and is inserted into the drain port 103 so that its own central axis and the central axis of the drain port 103 substantially coincide. Further, the drain port member 2 includes a flange portion 21 that protrudes radially outward at an upper end portion thereof, and a male screw portion 22 that is formed on the outer periphery below the flange portion 21.

  The pipe 3 includes a cylindrical main body pipe 31 extending in the up-down direction and a cylindrical rotating portion accommodating portion 32 branched from the main body pipe 31.

  The main body pipe 31 includes a female screw portion 31A capable of screwing the male screw portion 22 on the inner periphery of one end portion (upper end portion) thereof. The main body pipe 31 is disposed below the bottom surface portion 101 so as to be substantially coaxial with the drain port 103, and the drain port member 2 is inserted into the drain port 103 and the main body pipe 31 from above the bottom surface portion 101. While the male screw portion 22 is screwed into the female screw portion 31A and the bottom surface portion 101 is sandwiched between the upper end surface of the flange portion 21 and the main body pipe 31, the drain port member 2 and the pipe 3 are connected, and both are connected to the bathtub 100. It is in the state attached to.

  In the present embodiment, an annular seal member 10 made of an elastically deformable material is disposed between the flange portion 21 and the surface (upper surface) of the bottom surface portion 101, and the main body pipe 31. An annular seal member 11 made of an elastically deformable material is disposed between the upper end surface of the base plate 101 and the back surface of the bottom surface portion 101 in the same manner as the seal member 10. These seal members 10 and 11 prevent water leakage from between the drain port member 2 and the pipe 3 and the bathtub 100.

  The rotating part accommodating part 32 is a part that mainly functions as an accommodating part of the rotating mechanism 4. The rotating portion accommodating portion 32 has a shape extending in the horizontal direction from the main body tube 31, and includes a flow path side opening 32A that opens into the main body tube 31 (see FIG. 3). The “horizontal direction” here includes not only a strict horizontal direction but also a direction slightly inclined (for example, 10 ° or less) with respect to the horizontal direction. The drainage flowing through the main body pipe 31 can flow into the rotating portion accommodating portion 32 through the flow passage side opening 32A. On the other hand, the end located on the side opposite to the flow path side opening 32A in the rotating part accommodating part 32 is in a closed state.

  Moreover, in this embodiment, the whole flow path side opening 32A is comprised so that it may be located below the sealing surface 37 mentioned later. Thereby, as a result, the sealing part 36 mentioned later can be made to adjoin to the drain outlet 103, and it becomes possible to make the piping 3 compact along an up-down direction.

  Further, the pipe 3 includes an oblique cylinder portion 33 that extends obliquely upward from the outer periphery of the rotation portion accommodation portion 32 and communicates with the rotation portion accommodation portion 32. The oblique cylinder part 33 mainly functions as an accommodation space for the transmission part 6 and includes an end opening 33 </ b> A that is an opening at an end located on the side opposite to the rotation part accommodation part 32. The end opening 33A is opened obliquely upward. The length and angle of the oblique cylinder portion 33 are set so that the end opening 33A (the whole end opening 33A in the present embodiment) is positioned above a sealing surface 37 described later.

  In addition, the main body pipe 31, the rotation part accommodating part 32, the slanting cylinder part 33, and the folding | returning part 34 and the orthogonal part 35 which are each mentioned later are integrally formed by comparatively hard resin etc. Therefore, the oblique tube portion 33 cannot be displaced relative to the main body tube 31. That is, the slanted cylindrical portion 33 can be slightly bent and deformed when a force is applied, but is normally not greatly deformed and is in a self-supporting state. In addition, the tube portion composed of the oblique cylindrical portion 33 and the rotating portion accommodating portion 32 is in a sealed state except for the flow channel side opening 32A and the end portion opening 33A. In this tube portion, the flow channel side opening 32A and the end portion are sealed. Water can enter and exit only through the opening 33A.

  In addition, the seal portion 5 is provided in the rotating portion accommodating portion 32, and the seal portion 5 allows the internal space of the rotating portion accommodating portion 32 to be communicated with a space communicating with the internal space of the main body pipe 31. The inner space of the oblique cylindrical portion 33 is divided. The seal portion 5 prevents water from flowing from the main body pipe 31 side into the space communicating with the internal space of the oblique cylindrical portion 33 in the internal space of the rotating portion accommodating portion 32 (see FIG. 3). ). The configuration of the seal portion 5 will be described in detail later.

  Further, the pipe 3 includes a folded portion 34 and an orthogonal portion 35 provided in series so as to be connected to the lower end portion of the main body pipe 31.

  The folded portion 34 has a cylindrical shape extending obliquely upward from the lower end portion of the main body pipe 31. And the waste_water | drain which flowed into the main body pipe | tube 31 through the drain outlet 103 can be stored inside the bending part which consists of the main body pipe | tube 31 and the folding | returning part 34 as sealed water. In other words, in the present embodiment, the main body pipe 31 and the folded portion 34 constitute a sealed water portion 36 that can store sealed water.

  The orthogonal part 35 has a cylindrical shape extending from the upper end of the folded part 34 in a direction (horizontal direction) orthogonal to the main body pipe 31. In the present embodiment, in the sealed water portion 36, the sealed water is stored up to the sealed surface 37 having the same height as the boundary portion between the folded portion 34 and the orthogonal portion 35 (in FIG. 1 and the like, the sealed surface 37 is indicated by a two-dot chain line). It is possible.

  The rotation mechanism 4 is a mechanism for moving the stopper lid unit 8 up and down, and includes a cylindrical portion 41, a rotation portion 42, and a vertical movement portion 43 as shown in FIG.

  The cylindrical portion 41 is a member that is inserted through the inner periphery of the rotating portion accommodating portion 32 in order to reduce resistance when the rotating portion 42 rotates. The cylindrical portion 41 has a cylindrical shape provided with an annular fixed sealing groove 41A that opens to the outer peripheral side, and a small-diameter portion 422 (described later) of the rotating portion 42 is inserted into the inner periphery thereof. ing.

  The rotation part 42 moves the vertical movement part 43 up and down by rotating. The rotating part 42 is disposed in the rotating part accommodating part 32 and is rotatable relative to the rotating part accommodating part 32. Moreover, the rotation part 42 has comprised the transmission part connection part 421, the small diameter part, and the large diameter part 423 provided in this order along the rotation axis direction of own.

  As shown in FIG. 4, the transmission portion connecting portion 421 includes two disc-like portions and a columnar portion provided between the disc-like portions so as to connect the central portions of the two. Thus, each of the disk-shaped portions is provided with a notch portion opened at the outer periphery of the disk-shaped portion in a state of being opposed to each other. The opening width of the notched portion can be increased with the elastic deformation of the disc-shaped portion. In addition, although the member which comprises the transmission part connection part 421 and the member which comprises the small diameter part 422 and the large diameter part 423 are each comprised by the separate member, both are connected in the state which cannot be relatively rotated. ing. Therefore, the transmission portion connecting portion 421, the small diameter portion 422, and the large diameter portion 423 are integrally rotated. In addition, the entire transmission portion coupling portion 421 of the rotating portion 42 is normally configured so as not to contact the water flowing on the main body pipe 31 side by the seal portion 5 (unless an abnormality or the like occurs in the seal portion 5). Has been.

  Returning to FIG. 3, the small-diameter portion 422 has a cylindrical shape including an annular movable sealing groove portion 422 </ b> A that opens to the outer peripheral side, and is inserted through the inner periphery of the tubular portion 41.

  The large-diameter portion 423 has a disk shape larger in diameter than the small-diameter portion 422, and is arranged in a state where the outer peripheral surface is close to the inner peripheral surface of the rotating portion accommodating portion 32. Further, on the outer periphery of the large diameter portion 423, a rib portion 423A of a ridge extending along the circumferential direction of the large diameter portion 423 is provided. In the present embodiment, the rib portion 423 </ b> A is provided over the entire circumferential direction of the large diameter portion 423. Further, the rib portion 423A is provided on the most end side (the main body pipe 31 side) on the outer periphery of the large diameter portion 423, and a part of the rib portion 423A constitutes one end surface of the large diameter portion 423. One end surface of the large-diameter portion 423 is provided so as to face the inside of the main body pipe 31, and a vertical movement portion 43 is provided on the one end surface.

  The vertical movement portion 43 is for supporting the stopper lid unit 8. The vertical movement part 43 has a short columnar shape projecting into the main body pipe 31 from one end face of the large diameter part 423, that is, near the outer periphery of the end face of the rotating part 42 on the main body pipe 31 side. The vertical movement part 43 moves up and down with the relative rotation of the rotation part 42 with respect to the rotation part accommodating part 32, and the plug lid unit 8 moves up and down by this vertical movement.

  Returning to FIG. 2, the transmission unit 6 is for transmitting the driving force due to the displacement of the swinging unit 72 described later of the electric unit 7 to the rotation unit 42. The transmission part 6 has a pair of protrusions protruding outward at one end of itself, and has a rod shape with a connecting hole part at the other end thereof. In the present embodiment, the outer diameter of the protrusion provided at one end of the transmission portion 6 is smaller than the opening width of the notch portion in the normal state (during inelastic deformation) in the transmission portion connecting portion 421. Has been. And the one end part of the transmission part 6 and the transmission part connection part 421 are connected by pushing in a pair of said projection part with respect to the said notch part. Moreover, the other end part of the transmission part 6 and the electric unit 7 are connected by inserting the rocking | swiveling part 72 mentioned later into the hole part provided in the other end part of the transmission part 6. FIG.

  Moreover, the transmission part 6 is arrange | positioned in the diagonal cylinder part 33, and can be attached or detached through the edge part opening 33A. The attachment and detachment of the transmission unit 6 will be described in more detail in the attachment method and the removal method of the drain plug device 1 described later.

  The electric unit 7 is a drive source for moving the stopper lid unit 8 up and down. In the present embodiment, the electric unit 7 has a predetermined end with respect to the end portion of the oblique cylindrical portion 33 located on the side opposite to the rotating portion accommodating portion 32. It is attached using a nut-like member 15. The electric unit 7 is configured such that electric power is supplied from a power source (not shown), a motor (not shown) that rotates a motor shaft when energized, a disc portion 71 fixed to the motor shaft, An oscillating portion 72 that protrudes from the outer periphery of the end surface of the disc portion 71 is provided, and the oscillating portion 72 is centered on the rotational axis of the motor shaft when the motor shaft is rotated by energization of the motor. Is configured to swing (reciprocate). That is, the electric unit 7 is configured to be displaced by energization. As the electric unit 7 is energized, a driving force due to the displacement (reciprocating motion) of the swinging portion 72 is indirectly applied to the transmission portion coupling portion 421 via the transmission portion 6, so that the rotation portion 42 is moved. It rotates, and by extension, the vertical movement part 43 moves up and down.

  Returning to FIG. 1, the plug lid unit 8 is provided corresponding to the drainage flow path in order to open and close the drain outlet 103. The plug lid unit 8 includes a water passage member 81, a support shaft 82, and a plug lid 83.

  The water passing member 81 is a part that is lifted by the vertical movement part 43 at least when the vertical movement part 43 moves upward. The water passage member 81 has an annular shape and is disposed along the inner peripheral surface of the main body pipe 31. In addition, the water passing member 81 is attached to the lower end portion of the support shaft 82 via a plurality of connecting portions (not shown) extending along its own radial direction. As a result, the water passing member 81 is in a state of being indirectly attached to the plug lid 83 via the connecting portion and the support shaft 82.

  The support shaft 82 is disposed substantially at the center of the drain port member 2 and the main body pipe 31 (that is, a cylindrical portion through which drainage flows), and has a rod shape extending in the vertical direction. Further, the support shaft 82 is in a state where the upper end portion of the support shaft 82 is attached to the central portion of the back surface of the plug lid 83.

  The plug lid 83 is a plug for opening and closing the drain port 103, and is a disc-shaped plug lid main body portion 831 made of resin or the like, and a cylindrical shape that protrudes downward from the outer peripheral side of the back surface of the plug lid main body portion 831. , And an annular packing portion 833 formed of an elastically deformable material. The packing mounting portion 832 includes an annular groove that opens to the outer periphery, and the packing portion 833 is attached to the outer peripheral side of the back surface of the plug lid main body portion 831 by fitting the packing portion 833 into the groove. It has become.

  In the present embodiment, the swinging portion 72 moves forward with the energization of the electric unit 7 and the transmission portion 6 moves forward, whereby the rotating portion 42 rotates to one side. As a result, the vertical movement portion 43 moves upward and the plug lid unit 8 moves upward, whereby the packing portion 833 is separated from the drain port member 2, and as a result, the drain port 103 is opened. On the other hand, when the electric unit 7 is energized, the swinging part 72 moves backward, and the transmission part 6 moves backward, whereby the turning part 42 turns to the other side. As a result, the vertical movement portion 43 is moved downward and the plug lid unit 8 is moved downward, so that the entire outer peripheral portion of the packing portion 833 comes into contact with the drain port member 2, and as a result, the drain port 103 is closed (FIG. 1).

  In the present embodiment, when the drainage port 103 is in the open state, the water passing member 81 is placed on the vertically moving portion 43, while the vertically moving portion 43 is disposed at the lowest position. (When the drainage port 103 is in the closed state), the water passing member 81 is separated from the vertical movement portion 43 (floating state). As a result, when the drainage port 103 is closed, the packing portion 833 can be brought into contact with the drainage port member 2 more reliably, and good water tightness can be obtained.

  Next, the configuration of the seal portion 5 will be described. In the present embodiment, as shown in FIG. 3, the seal portion 5 is provided in the rotation portion accommodating portion 32 and is configured by a fixed seal portion 51 and a movable seal portion 52 each having an annular shape.

  The fixed seal portion 51 is formed of an O-ring having a circular cross section, and is disposed in the fixed seal groove portion 41A. The fixed seal portion 51 is provided between the rotating portion accommodating portion 32 and the cylindrical portion 41 in a state in contact with the rotating portion accommodating portion 32 and the cylindrical portion 41. More specifically, the fixed seal portion 51 is sandwiched between the rotating portion accommodating portion 32 and the cylindrical portion 41 and is provided in a state of being pressed against both.

  Further, the fixed seal portion 51 prevents the relative rotation of the tubular portion 41 with respect to the rotating portion accommodating portion 32 normally (unless an abnormality of the fixed seal portion 51 occurs). Therefore, when the rotating part 42 rotates relative to the rotating part accommodating part 32, the tubular part 41 is controlled in a state where the relative seal of the cylindrical part 41 relative to the rotating part accommodating part 32 is restricted by the fixed seal part 51. The rotating part 42 rotates relative to the part 41.

  The movable seal portion 52 is composed of an X-ring having an X-shaped cross section, and is disposed in the movable seal groove portion 422A. The movable seal portion 52 is provided between the tubular portion 41 and the rotating portion 42 (small diameter portion 422) in contact with the tubular portion 41 and the rotating portion 42 (small diameter portion 422). More specifically, the movable seal portion 52 is sandwiched between the tubular portion 41 and the rotating portion 42 (small diameter portion 422) and is provided in a state of being pressed against both.

  Further, the fixed seal portion 51 and the movable seal portion 52 are respectively disposed in the vicinity of the flow path side opening 32 </ b> A in the rotation portion accommodating portion 32. That is, the entire seal portion 5 is disposed in the vicinity of the flow path side opening 32 </ b> A in the rotation portion accommodating portion 32. Note that “the entire seal portion 5 is disposed in the vicinity of the flow path side opening 32A in the rotating portion accommodating portion 32” means that the entire seal portion 5 is in the direction of the axis CL1 of the rotating portion accommodating portion 32. , And is located in a range within 20 mm from the flow path side opening 32A. In the present embodiment, the entirety of the seal portion 5 is configured so as to be positioned within a range of 8 mm or less from the flow path side opening 32A along the direction of the axis CL1 of the rotating portion accommodating portion 32.

  Furthermore, at least a part of the fixed seal portion 51 is provided at a position overlapping with the movable seal portion 52 along a direction orthogonal to the axis CL1 of the rotating portion accommodating portion 32. That is, the positional relationship between them is set so that the movable seal portion 52 is positioned inside the fixed seal portion 51.

  Next, a method for attaching and removing the drain plug device 1 to the bathtub 100 will be described. First, a method for attaching the drain plug device 1 to the bathtub 100 will be described.

  When attaching the drain plug device 1, first, the male threaded portion 22 of the drain port member 2 is screwed into the female threaded portion 31 </ b> A of the main body pipe 31, and the bottom surface portion 101 is sandwiched between the flange 21 and the upper end surface of the main body pipe 31. Thus, the drain port member 2 and the pipe 3 are provided for the bathtub 100.

  Next, the movable seal portion 52 is arranged with respect to the movable seal groove portion 422A, and the small diameter portion 422 and the movable seal portion 52 are inserted into the tubular portion 41, and then the members constituting the transmission portion connecting portion 421 and the small diameter are arranged. The member which comprises the part 422 and the large diameter part 423 is connected, and also the fixed seal part 51 is arrange | positioned with respect to 41 A of groove parts for fixed seals. As a result, a rotating seal component in which the cylindrical portion 41, the rotating portion 42, the fixed seal portion 51, and the movable seal portion 52 are integrated is obtained. Then, the rotational seal component is inserted from the inside of the main body tube 31 into the rotational portion accommodating portion 32.

  Thereafter, the disc 6 provided in the transmission portion coupling portion 421 is provided with the pair of protrusions provided at one end portion of the transmission portion 6 while the transmission portion 6 is inserted into the oblique cylindrical portion 33 through the end opening 33A. The portion corresponding to the opening of the notch portion in the shaped portion is brought into contact. Then, by pushing the transmission part 6 toward the rotating part 42 side, the disk-shaped part is elastically deformed so that the opening of the notch part is widened. When the width of the opening exceeds the outer diameter of the protrusion, the protrusion is disposed in the notch, the elastic deformation of the disk-shaped portion is released, and one end of the transmission portion 6 is It is connected to the transmission part coupling part 421.

  Thereafter, the electric unit 7 is attached to the oblique cylindrical portion 33 by the nut-like member 15 while the swinging portion 72 is inserted into the hole portion provided in the other end portion of the transmission portion 6. Furthermore, by installing the plug lid unit 8 into the drain port member 2 and the main body pipe 31, the installation of the drain plug device 1 is completed.

  Next, a method for removing the drain plug device 1 from the bathtub 100 will be described. The drain plug device 1 can be removed by a procedure reverse to the above attachment method. That is, after loosening the nut-like member 15, the electric unit 7 is detached from the oblique cylindrical portion 33 while pulling out the swinging portion 72 from the hole portion provided at the other end portion of the transmission portion 6. Further, the plug lid unit 8 is pulled out from the main body pipe 31 and the drain port member 2.

  Further, the transmission unit 6 is pulled in a direction away from the rotation unit 42. As a result, the transmission portion connecting portion 421 is elastically deformed so that the opening of the notch portion is widened, and the protrusion provided at one end of the transmission portion 6 through the opening of the notch portion is the notch portion. Get out of it. That is, the transmission unit 6 is detached from the rotation unit 42. And the transmission part 6 is removed from the inside of the diagonal cylinder part 33 by pulling out the transmission part 6 from the diagonal cylinder part 33 through the end opening 33A. Thus, in this embodiment, the transmission part 6 can be attached and detached through the end opening 33A, and the attachment and detachment of the transmission part 6 is very easy due to the snap fit utilizing the elastic deformation of the transmission part connecting part 421. It has become.

  Furthermore, while pulling out the said rotation seal part from the rotation part accommodating part 42 to the main body pipe | tube 31 side, the connection of the piping 3 (main body pipe | tube 31) and the drain port member 2 is cancelled | released, and both are removed from the bathtub 100. Thus, the removal of the drain plug device 1 is completed. It should be noted that when performing maintenance of the rotation mechanism 4, the seal portion 5, the transmission portion 6, etc., it is not necessary to remove the drain port member 2 and the pipe 3.

  As described above in detail, according to the present embodiment, even if water such as drainage flowing through the main body pipe 31 flows into the rotating portion accommodating portion 32 by the seal portion 5, this water is not affected by the rotating portion accommodating portion. 32 can be more reliably prevented from entering the rear side (obliquely cylindrical portion 33 side) of the seal portion 5 in FIG.

  Furthermore, even if water has infiltrated deeper than the seal portion 5 due to damage to the seal portion 5 or the like, water can be blocked by the oblique tube portion 33, and the end opening of the oblique tube portion 33 can be opened. It can be set as the state where water does not leak from 33A. As a result, leakage of water to the outside of the pipe 3 can be extremely effectively prevented.

  In the present embodiment, the entire seal portion 5 is disposed in the vicinity of the flow path side opening 32A. Therefore, in the rotation mechanism 4 and the rotation part accommodating part 32, the range which can contact | connect waste_water | drain can be made very narrow, and in the wide range of the rotation mechanism 4 or the rotation part accommodating part 32, a stain | pollution | contamination, a foreign material, etc. It can prevent more reliably that adhesion will arise. As a result, it is possible to improve the hygiene, and it is possible to smoothly rotate the rotating part 42 for a longer period of time, thereby improving convenience and operability.

  In addition, the end opening 33 </ b> A in the oblique tube portion 33 is located above the sealing surface 37. Therefore, as in the present embodiment, in the configuration in which the entire flow path side opening 32A is positioned below the sealing surface 37 and the sealing portion 5 is immersed in the sealing water, the sealing portion 5 is temporarily damaged and the oblique cylinder Even if the sealing water flows into the portion 33, the sealing water can be more reliably prevented from flowing out from the end opening 33A. As a result, water leakage from the outside of the pipe 3 can be prevented more reliably.

  Further, a cylindrical portion 41 is disposed on the inner periphery of the rotating portion accommodating portion 32, and a movable seal portion 52 is provided between the cylindrical portion 41 and the rotating portion 42. Therefore, the movable seal portion 52 can be made to have a relatively small diameter, and the frictional force generated when the rotating portion 42 rotates can be reduced. As a result, operability can be further enhanced.

  Furthermore, since the movable seal portion 52 has a relatively small diameter, the seal stability between the tubular portion 41 and the rotating portion 42 can be improved. In addition, since the force applied to the tubular portion 41 from the movable seal portion 52 when the turning portion 42 is turned is relatively small, the tubular portion 41 with respect to the turning portion accommodating portion 32 is fixed by the fixed seal portion 51. Relative rotation can be more reliably restricted, and as a result, the stability of the seal between the rotating portion accommodating portion 32 and the tubular portion 41 can be improved. As a result, the sealing performance by the seal portion 5 can be effectively increased, and the leakage of water from the pipe 3 to the outside can be more reliably prevented.

  In addition, at least a part of the fixed seal portion 51 is provided at a position that overlaps (overlaps) the movable seal portion 52 along a direction orthogonal to the axis CL <b> 1 of the rotating portion accommodating portion 32. Accordingly, when a force is applied from the movable seal portion 52 to the tubular portion 41 with the rotation of the rotation portion 42, this force can be more reliably received by the fixed seal portion 51. The relative rotation of the tubular portion 41 with respect to 32 can be more reliably regulated. As a result, it is possible to more reliably maintain good seal stability between the rotating portion accommodating portion 32 and the tubular portion 41.

  Further, when the movable seal portion 52 and the fixed seal portion 51 are disposed at different positions along the axis CL1 direction of the rotating portion accommodating portion 32, the axis of the rotating portion accommodating portion 32 is aligned along the axis CL1. Although it is necessary to make the length of the rotation part 42 and the cylindrical part 41 comparatively large, according to this embodiment, it is not necessary, and the length of the rotation part 42 and the cylindrical part 41 is enough. Can be small. Therefore, it is possible to reduce the cost for manufacturing. Further, it is possible to reduce the space required for installation of the device, and increase the degree of freedom of installation of the device.

  In addition, since the movable seal portion 52 is made of an X ring, it is possible to further reduce the frictional force generated when the rotating portion 42 rotates. As a result, the operability can be further improved. On the other hand, since the fixed seal portion 51 is made of an O-ring, the relative rotation of the tubular portion 41 with respect to the turning portion accommodating portion 32 can be more reliably restricted. In the meantime, better sealing stability can be obtained.

  Further, the gap between the large diameter portion 423 and the rotating portion accommodating portion 32 can be further reduced by the rib portion 423A. Therefore, it is possible to more reliably prevent foreign matters and dirt from reaching the movable seal portion 52 and the fixed seal portion 51 through the space between the large diameter portion 423 and the rotation portion accommodating portion 32. Thereby, the improvement of hygiene and operability can be achieved more effectively.

  Furthermore, when the entire outer peripheral surface of the large diameter portion 423 is brought close to the rotating portion accommodating portion 32, the rotating portion 42 is rotated if a foreign object is caught between the large diameter portion 423 and the rotating portion accommodating portion 32. However, according to the present embodiment, when a foreign object is caught between the large-diameter portion 423 and the rotating portion accommodating portion 32, the rib portion 423A and the turning force may be increased. Since a foreign object is sandwiched between the part accommodating parts 32, it is possible to more reliably prevent the force required to rotate the rotating part 42 from being extremely increased. As a result, it is possible to effectively suppress a decrease in operability due to the influence of foreign matter.

  Moreover, in this embodiment, the transmission part 6 can be attached or detached through the end opening 33A. Therefore, during installation or maintenance of the apparatus, the transmission unit 6 is in an attached state (that is, a state in which the transmission unit 6 is disposed in the oblique cylindrical portion 33 and connected to the transmission unit coupling unit 421), or in a detached state. (That is, the state where the transmission part 6 is pulled out from the oblique cylinder part 33 while being removed from the transmission part connection part 421). Therefore, workability related to installation and maintenance of the apparatus can be improved.

  Furthermore, in this embodiment, the whole seal part 5 is the electric unit 7 among the parts (in this embodiment, the rotation part 42, the transmission part 6, and the electric unit 7) that operate when the drainage port 103 is opened and closed. It is provided on the opposite side and corresponding to a part that is as far away as possible from the electric unit 7. Therefore, even if the seal portion 5 is damaged and water flows in, the probability that the water reaches the electric unit 7 can be significantly reduced. As a result, it is possible to very effectively prevent problems such as malfunction of the electric unit 7 and electric leakage.

  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 said embodiment, although the edge part opening 33A is comprised so that it may be located above the sealing surface 37, as shown in FIG. The end opening 38 </ b> A of the oblique cylinder portion 38 may be configured to be located above the bottom surface portion 101. In this case, if the seal portion 5 is damaged and water can flow into the oblique cylindrical portion 33, the main body is in spite of the drainage port 103 being open due to clogging of the piping 3 or the like. Even if water accumulates in the pipe 31 and water infiltrates in the oblique tube portion 33, the water does not flow out from the end opening 33 </ b> A unless the water is accumulated in the bathtub 100 to a position above the bottom surface portion 101. can do. Therefore, the leakage prevention of the water with respect to the exterior of the piping 3 can be aimed at more effectively.

  Furthermore, as shown in FIG. 5, when the slanted cylinder part 38 is long, the transmission part 9 is connected in series in a state in which a plurality of link arms 91, 92, 93 can be rotated with respect to each other. It is good also as a structure which consists of.

  In the example shown in FIG. 5, the oblique cylinder portion 38 extends obliquely upward from the rotation portion accommodation portion 32, and includes a first cylinder portion 381 integrally formed with the rotation portion accommodation portion 32, and the first cylinder portion. The second cylindrical portion 382 is connected in series with the first cylindrical portion 381 and sealed in a watertight manner with respect to the first cylindrical portion 381, and the oblique cylindrical portion 38 is connected to three or more cylindrical portions. You may comprise. Further, for example, the oblique cylinder part 38 may be configured without connecting the plurality of cylinder parts by making the first cylinder part 381 longer.

  (B) In the above embodiment, the electric unit 7 that is displaced by energization is used as the operating unit, but an operating unit that is displaced by manual operation may be used. For example, as shown in FIG. 6, the operation unit includes a reciprocating unit 121 that is displaced by a manual operation on a predetermined operation unit (not illustrated) (for example, an operation button or an operation handle), and the reciprocating unit 121 transmits the operation unit. A manual unit 12 configured to be coupled to the unit 6 may be used. Of course, as shown in FIG. 7, in the configuration in which the slanted cylindrical portion 38 is long and the end opening 38 </ b> A is located above the bottom surface portion 101, the manual unit 12 is used as the operating portion, and the manual unit 12 is reciprocated. The moving unit 121 may be connected to the transmission unit 9.

  In the example shown in FIGS. 6 and 7, a predetermined inner wire 13 (for example, a core coil or the like) moves forward (moves from the operation unit side to the manual unit 12 side) in accordance with the displacement of the operation unit, thereby reciprocating. The part 121 moves forward, and as a result, the vertical movement part 43 moves upward and the drainage port 103 is opened. In this open state, the inner wire 13 is maintained at the position after the forward movement by a lock mechanism (not shown), and consequently the reciprocating movement part 121 and the vertical movement part 43 are also maintained at the position after the movement. On the other hand, when the operation unit is operated again, the lock of the inner wire 13 by the lock mechanism is released, and as a result, the urging force from the return spring 122 provided in the manual unit 12 causes the inner wire 13 and the transmission unit 6 (9). Will return. And the drainage port 103 is made into a closed state by the vertical motion part 43 moving downward.

  In addition, you may comprise so that the opening / closing state of the drain port 103 may be switched by the inner wire 13 being directly pushed / pulled by the said operation part, without using the return spring 122 as mentioned above. When the inner wire 13 is pushed and pulled, it is preferable to use, as the inner wire 13, a wire that does not easily expand and contract during the pushing and pulling operation.

  (C) In the above embodiment, the seal portion 5 includes the fixed seal portion 51 and the movable seal portion 52. For example, the seal portion 5 is disposed between the outer peripheral surface of the large-diameter portion 423 and the rotating portion accommodating portion 32. The seal portion may be constituted by a movable seal portion that seals both of them in a watertight manner. Of course, the cylindrical part 41 is unnecessary in this case.

  (D) In the above-described embodiment, the transmission unit 6 is configured to reciprocate, but the transmission unit may rotate.

  (E) In the above embodiment, the rib portion 423A is provided on the most end side on the outer periphery of the large-diameter portion 423, but the arrangement position of the rib portion may be changed as appropriate. Therefore, for example, the rib portion may be provided on the outermost end side of the outer periphery of the large diameter portion 423 or may be provided at an intermediate position on the outer periphery of the large diameter portion 423.

  (F) In the above-described embodiment, the oblique cylindrical portion 33 is configured to extend obliquely upward from the outer periphery of the rotating portion accommodating portion 32, but is opposite to the main body tube 31 in the rotating portion accommodating portion 32. You may comprise an oblique cylinder part so that it may extend toward diagonally upward from the edge part of the side.

  (G) In the above-described embodiment, the drain lid 103 is closed when the stopper lid 83 (packing portion 833) contacts the drain port member 2, but the stopper lid 83 (packing portion 833) is configured to be closed. You may comprise so that the drain outlet 103 may be closed by contacting the bottom face part 101.

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

  DESCRIPTION OF SYMBOLS 1 ... Drain plug apparatus, 3 ... Piping, 5 ... Seal part, 6, 9 ... Transmission part, 7 ... Electricity unit (operation | movement part), 12 ... Manual unit (operation part), 31 ... Main body pipe, 32 ... Turning part Accommodating portion, 32A ... channel side opening, 33,38 ... oblique cylindrical portion, 33A, 38A ... end opening, 36 ... sealed portion, 37 ... sealed surface, 41 ... cylindrical portion, 42 ... rotating portion, 43 ... Vertical movement part, 51 ... Fixed seal part, 52 ... Movable seal part, 83 ... Plug lid, 100 ... Bathtub (tank), 101 ... Bottom part, 103 ... Drain port, 422 ... Small diameter part, 423 ... Large diameter part, 423A ... Rib part.

Claims (9)

A plug lid for opening and closing the drain of the tank body;
A main body pipe through which the drainage flows through the drainage port, and a pipe having a cylindrical rotating portion accommodating portion extending in a horizontal direction from the main body pipe;
A rotating part disposed in the rotating part accommodating part and rotatable relative to the rotating part accommodating part;
The rotating portion protrudes from the end surface on the main body tube side into the main body tube, and can be moved up and down with relative rotation of the rotating portion with respect to the rotating portion receiving portion, and has its own up and down movement. A drainage stopper device comprising a vertically moving part for vertically moving the stopper lid,
The rotating portion accommodating portion includes a flow channel side opening that opens toward the inside of the main body tube,
The pipe is configured to extend obliquely upward from the rotating part accommodating part, open at an end opposite to the rotating part accommodating part, and not relatively displaceable with respect to the main body pipe. It has an oblique tube part,
In the turning portion accommodating portion, a seal portion is provided to prevent inflow of water from the main body tube side to a space communicating with the inner space of the oblique cylindrical portion of the inner space of the turning portion accommodating portion.
The drain plug device, wherein the entire seal portion is disposed in the vicinity of the flow path side opening in the rotating portion housing portion. The pipe includes a sealed water portion in which sealed water is stored,
The oblique tube portion has an end opening at an end opposite to the rotating portion housing portion,
The drain plug device according to claim 1, wherein the end opening is configured to be positioned above a sealing surface in the sealing portion. The tank body includes a bottom surface portion constituting a bottom portion thereof,
The oblique cylinder part has an end opening located on the side opposite to the rotating part accommodating part,
The drain plug device according to claim 1 or 2, wherein the end opening is configured to be positioned above the bottom surface. A cylindrical portion disposed on the inner periphery of the rotating portion accommodating portion;
At least a part of the rotating part is inserted into the cylindrical part,
The seal portion is
An annular fixed seal portion arranged in contact with both between the rotating portion accommodating portion and the cylindrical portion;
An annular movable seal portion disposed in contact with both between the tubular portion and the rotating portion;
When the rotating part is relatively rotated with respect to the rotating part accommodating part, the tubular member is controlled in a state where relative rotation of the cylindrical part with respect to the rotating part accommodating part is restricted by the fixed seal part. The drain plug device according to any one of claims 1 to 3, wherein the rotating portion is configured to rotate relative to the portion.   5. The drain plug according to claim 4, wherein at least a part of the fixed seal portion is provided at a position overlapping the movable seal portion along an axis orthogonal direction of the rotating portion accommodating portion. apparatus. The fixed seal portion is composed of an O-ring having a circular cross section,
The drain plug device according to claim 4 or 5, wherein the movable seal portion is formed of an X-ring having an X-shaped cross section. The rotating part is
A small-diameter portion inserted through the cylindrical portion;
A disk-shaped large-diameter portion facing the inside of the main body tube, having a larger diameter than the small-diameter portion, and being arranged in a state where the outer peripheral surface is close to the inner peripheral surface of the rotating portion accommodating portion,
The drain plug according to any one of claims 4 to 6, wherein a projecting rib portion extending along a circumferential direction of the large diameter portion is provided on an outer periphery of the large diameter portion. apparatus. A transmission unit that is disposed in the oblique cylinder unit and connected to the rotation unit and transmits a driving force generated by displacement of a predetermined operation unit to the rotation unit;
The oblique cylinder part has an end opening located on the side opposite to the rotating part accommodating part,
The drain plug device according to any one of claims 1 to 7, wherein the transmission unit is configured to be detachable through the end opening. An operation unit that applies a driving force due to its own displacement to a portion that is configured not to come into contact with the water on the main body tube side by the seal unit among the rotating unit,
The drain plug device according to any one of claims 1 to 8, wherein the operating unit is configured to be displaced by energization.

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