JP2004183225A - Drain valve device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a prefabricated drain valve device assembling by ensuring an inflow space for overflow with fixed dimensions even if there are variations in thickness of a wall aiming at mounting or even if an individual variation occurs in clamping strength between an operation joint and a fixing cylindrical body. <P>SOLUTION: A supporting body 3 for supporting an operation mechanism body 2 for connecting one end of a release wire W wired to an over-flow pipe 1 is wired to the operation joint 11 provided on the upper end side of the lover-flow pipe 1, at the same time, a supporting body 5 for supporting a drain mechanism body 4 connected with the other end of the release wire W is provided on the lower end side of the over-flow pipe 1 to form a unit A1, the supporting body 3 of the operation mechanism body 2 is movably provided on the inside of the operation joint 11 of the unit A1, the fixing cylindrical body 6 passing through a mounting opening 100 provided on a tank wall B1 is screw and fitted to the inside of the operation joint 11 from an opening side thereof to hold the tank wall B1 between the fixing cylindrical body 6 and the operation joint 11, and the supporting body 3 is moved so as to butt against the approach end of the fixing cylindrical body 6 holding the tank wall B1 to ensure the inflow space L for the over-flow with the fixed dimensions between an operating body 32 of the operation mechanism body 2 and the opening section on the tank side of the fixing cylindrical body 6. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a drainage device for remotely opening and closing a drain port of a bathtub, a basin, a sink, and the like, more specifically, an operation mechanism having an operation body, and a drainage mechanism for vertically moving a stopper lid. The present invention relates to a drain plug device in which a unit provided at an upper end and a lower end and having a release wire for connecting an operation mechanism and a drainage mechanism in an overflow pipe thereof is installed in a tank part by on-site construction.
[0002]
[Prior art]
Conventionally, in this type of drain plug device, a release wire is wired in an overflow pipe, a support of an operating mechanism for connecting one end of the release wire is provided on an upper end side of the overflow pipe, and the other end of the release wire is provided. There is a structure in which a support for a drainage mechanism is provided at the lower end side of the overflow pipe, and the unit is attached to a tank (for example, see Patent Document 1).
An operation mechanism and a drainage mechanism are provided on the overflow pipe, and the operation mechanism and the drainage mechanism are connected to each other with a release wire wired in the overflow pipe to form a unit. By pre-installing the operating mechanism, drainage mechanism, release wire, etc., it is not necessary to attach the functional parts at the time of construction on site, and it is easy to assemble on site construction work without depending on expertise You can do it.
[0003]
[Patent Document 1]
JP-A-11-21967 (pages 3 to 6, FIG. 1)
[0004]
[Problems to be solved by the invention]
Meanwhile, the above-mentioned patent document discloses a fixing cylinder in which a support for supporting an operating mechanism is immovably mounted in an operating joint provided at an upper end of an overflow pipe, and a mounting port provided in a tank wall is inserted into the inner surface of the operating joint. The upper end of the overflow pipe is assembled to the tank by screwing the body from its open side and clamping the tank wall between the fixing cylinder and the operation joint. Incidentally, such a drain plug device is called a leading-end drain plug device.
Since the operating joint and the fixing cylinder are relatively large, a large force is required to screw them together. Further, in the case of a porcelain tank or the like, a basin, a sink, and the like have variations in wall thickness due to a molding problem.
Therefore, the amount of protrusion of the operating body of the operating mechanism relative to the tank-side opening portion of the fixing cylinder changes due to individual differences in the tightening strength between the operating joint and the fixing cylinder and variations in the thickness of the tank. Thus, there is a problem that it is not possible to secure an overflow inflow space of a certain size.
When the amount of protrusion of the operating body is smaller than a predetermined value, the overflow inflow space is reduced, and a predetermined overflow efficiency is impaired. Is easy to be caught and deteriorates usability, and in a bathtub, it is easy to come into contact during bathing and the like, which deteriorates bodily sensation.
[0005]
The present invention has been made in view of the above-mentioned conventional circumstances, and the purpose thereof is to produce individual differences in the tightening strength between the operation joint and the fixing cylinder, or to cause variations in the thickness of the wall to be mounted. It is still another object of the present invention to provide a drainage plug device of a pre-installed type which can secure an overflow inflow space of a certain size and assemble the same.
Still another object of the present invention is to provide a drainage plug device of a pre-installed type in which the operation unit side can be firmly fixedly attached to the tank wall by using the support of the operation mechanism as a lock nut.
[0006]
[Means for Solving the Problems]
The technical means taken to solve the above object is to wire a release wire in the overflow pipe and provide a support for supporting an operation mechanism connected to one end of the release wire at an operation joint provided at the upper end side of the overflow pipe. A drainage plug device which is disposed and supports a drainage mechanism connected to the other end of the release wire at the lower end side of the overflow pipe to constitute a unit, and the unit is attached to a tank, wherein the operation mechanism Is provided movably in the operation joint, and a fixing cylinder inserted through a mounting hole provided in the tank wall is engaged with the inner surface of the operation joint from its open side, and the fixing cylinder and the operation joint are The holding body is pinched in, the support body is moved so as to abut on the entering end as a positioning part with the fixing cylinder entering end holding the tank wall in between, and the operating body of the operating mechanism body and the fixing cylinder are moved. Tank side opening A discharge valve device, characterized in that to secure the overflow inflow space of constant dimension between (claim 1).
Either the operating mechanism or the drainage mechanism is provided with an opening / closing mechanism (thrust lock mechanism) for alternately opening and closing the drainage port each time the operating body of the operating mechanism is pushed.
[0007]
According to the above means, the support of the operating mechanism body is positioned by using the entry end of the fixing cylinder as a contact portion regardless of individual differences in the tightening strength between the operation joint and the fixing cylinder and the thickness of the tank wall. I do.
[0008]
Further, it is more preferable that the support of the operation mechanism is moved by screwing with an operation joint (claim 2).
[0009]
According to the above means, the support functions as a lock nut for a mounting portion composed of the fixing cylinder and the operation joint that sandwich the tank wall.
[0010]
In addition, when the operating body is formed so as to be able to be inserted into and removed from the operating shaft of the operating mechanism, a large operating space for the support can be formed around the operating mechanism (claim 3).
[0011]
In addition, the drainage mechanism pushes a movable shaft vertically movably supported by the support cylinder with a release wire that enters from the lower end of the support cylinder, and moves the drainage plug up and down with the movable shaft to open and close the drain port. It is preferable that the drain plug is provided with a guide body for externally inserting the support cylinder, and the guide body is adapted to maintain the external cylinder inserted state when the drain port is both opened and closed (claim 4).
[0012]
According to the above means, the guide body secures the straightness when the drain port is opened and closed, and covers the sliding portion of the movable shaft.
[0013]
Further, it is more preferable that a linear ridge that is in contact with the outer surface of the support cylinder along the axial direction is provided on the inner surface of the guide body at appropriate intervals (claim 5). By the way, in the absence of the linear ridge, the clearance (about 0.5 mm) between the inner surface of the guide and the outer surface of the support cylinder disappears due to minute blur when the drain plug goes straight, and surface tension is generated by the drain water that enters. In addition, the two members are brought into close contact with each other, and the escape of air between the guide body and the support cylinder is impeded. The close contact force and the residual air act synergistically to provide resistance at the time of plugging, making plugging uncertain.
[0014]
According to the above-described means, a clearance having a constant dimension is always generated between the inner surface of the guide and the outer surface of the support cylinder due to the presence of the linear ridge. Due to the clearance between the linear ridges, no surface tension is generated, and the residual air between the guide body and the support tube is released without resistance when the drain plug is closed. Dynamic resistance is reduced by the line contact.
[0015]
Next, an embodiment of the present invention will be described.
The drawings show a drainage plug device of the present embodiment, and reference numeral A denotes the drainage plug device.
The drainage plug device A includes an overflow pipe 1, an operating mechanism 2 provided on the upper end of the overflow pipe 1, and a support 3 thereof, and a drainage mechanism 4 provided on a lower end of the overflow pipe 1 and a support thereof. 5, a fixing cylinder 6 for attaching the upper end of the unit A1 to, for example, a basin wall B1 of a basin, and a fixing cylinder for attaching the lower end of the unit A1 to a tank bottom B2. It is composed of a metal fitting 7 and the like.
[0016]
The overflow pipe 1 is provided at the upper end thereof with an operation joint 11 for integrally attaching a mounting flange 111 to an open portion, and at the lower end thereof is provided with a drainage joint 21 communicating with a drainage trap (not shown). On the inner surface of the joint 11, a female screw 11a is screwed.
[0017]
The operation mechanism body 2 has a conventionally known thrust lock mechanism (not shown) built in the operation tube 12, protrudes the operation shaft 22 in the axial direction, and moves the operation tube 12 to the central portion of the support 3. The operation body 32 is removably engaged with the operation shaft 22, and the operation body 32 is axially removably engaged with the operation shaft 22, and the male screw 3 a provided on the outer peripheral surface of the support 3 is screwed into the female screw 11 a of the operation joint 11. By doing so, it is arranged in the operating joint 11 in a housed state.
[0018]
The support body 3 of the operating mechanism 2 integrally includes a locking cylinder 13 for detachably locking the operating cylinder 12 at the center, and radial ribs 23 such as a cross around the locking cylinder 13 at regular intervals. The drainage space S is secured between the radial ribs 23, 23.
As shown in FIG. 3, the locking cylinder 13 has a distal end portion which is narrowed in the axial direction, and a circumferential surface thereof is cut in the axial direction to form elastic pieces 13a at a plurality of positions in the circumferential direction. A convex portion 13b is provided on the inner side of the front end of the operating tube 13a, and a groove portion 42 is formed on the peripheral surface of the operating tube 12 so that the convex portion 13b is engaged. 12 are elastically locked.
[0019]
The operation body 32 includes a switch plate 324 having a hair catcher 323 at an end opposite to the cylindrical shaft 322 having an open end corresponding to the operation shaft 22, and includes an anti-sway blade 325 in the middle. An engaging cylinder 326 that engages with the operating shaft 22 in the axial direction so as to be removably inserted into the bottom of the cylindrical shaft 322 is protruded toward the operating shaft 22, and a locking projection 221 at the tip of the operating shaft 22 is provided. It is adapted to be removably locked to the engagement cylinder 326.
[0020]
The drainage mechanism 4 accommodates the lower end side in the support cylinder 14 and supports the movable shaft 24 so as to be able to move up and down. The drainage mechanism 4 is connected to the overflow pipe 1 by a release wire W that connects one end to the operation mechanism 2. The movable shaft 24 is pushed to indirectly push up the drain plug 9 to open and close the drain port 200.
[0021]
The support 5 of the drainage mechanism 4 is connected to a locking ring 15 that locks to a locking step formed in the inner peripheral surface of the drainage joint 21, and connects the locking ring 15 to the cylindrical body 14. A radial rib 25 having a cross shape or the like is provided, and a drainage space S is defined between the radial ribs 25.
[0022]
The fixing cylinder 6 has a clamping flange 16 for clamping the tank wall B1 on one end side with the mounting flange 111 of the operation joint 11 and an external male screw 6a on the outer surface is connected to a female screw 11a of the operation joint 11. The upper end of the overflow pipe 1 is attached to the tank wall B1 by holding the tank wall B1 with the operation joint 11 by screwing the mounting port 100 into the tank wall B1.
[0023]
The fixing metal fitting 7 is a cap nut, which is locked to a flange 212 locked at a position near the upper end of the drainage joint 21, and is screwed into a male screw 8 a on the outer periphery of the drainage port member 8 to form an overflow pipe. 1 is attached to the tank bottom B2.
[0024]
The release wire W is wired so as to connect the operation mechanism 2 and the drainage mechanism 4 within the overflow pipe 1, and by pushing the operation body 32, the movable shaft 24 of the drainage mechanism 4 is moved. Then, the supporting shaft 19a of the stopper lid 19 is pushed to open and close the drain port 200.
[0025]
The drain plug 9 is provided with a support shaft 19a hanging from a plug lid 19 for opening and closing a drain port 200 at the upper end of the drain port member 8, providing a steadying blade 19b on the back side of the plug lid 19, and a hair catcher 19c in the middle part. A guide body 10 which is coaxially supported and externally inserted into the support cylinder 14 is vertically suspended from its support shaft 19a, and the bottom of the guide body 10 is indirectly pushed by the movable shaft 24 of the drainage mechanism body 4. Configuration.
[0026]
As shown in FIG. 4, the guide body 10 is formed to have a length that maintains the external fitting state of the support cylinder 14 when the drain port is both opened and closed, and has a linear projection that contacts the outer surface of the support cylinder 14 along the axial direction. The ridges 10a protrude from the inner surface at appropriate intervals.
The clearance between the distal end of the linear ridge 10a and the outer surface of the support cylinder 14 is ensured by about 0.15 mm, and the clearance between the inner surface of the guide 10 between the linear ridges 10a and 10a and the outer surface of the support cylinder 14 is About 0.65 mm is secured.
Reference numeral 25a denotes an interference preventing recess formed in the guide 25 from above so as to avoid interference with the radial rib 25.
[0027]
As shown in FIG. 2, the drainage plug device A configured as described above has a release wire W wired in the overflow pipe 1 at the time of shipment from the factory, and an operation mechanism 2 and a drainage mechanism connected to the release wire W. The body 4 is supported on the operation joint 11 and the drainage joint 21 of the overflow pipe 1 by the supports 3 and 5 to form a unit A1, and this unit A1 is attached to a basin such as a washbasin or a bathtub at a construction site. (FIG. 1).
At the time of shipment from the factory, the support portion 3 of the operating mechanism 2 is screwed into the inner portion of the operating joint 11 so as to be inserted into the operating joint 11, and the mounting flange 111 and the holding flange 16 are interposed with the packing P interposed therebetween. The fixing cylinder 6 is screwed into the tank so as to sandwich the tank wall B1. On the drain port 200 side, a fastening nut N is screwed into the drain port member 8 so as to sandwich the tank bottom B2 with the drain port member 8 via the packing P, and a cap nut 7 is screwed into the lower end of the drain port member 8. Then, the support 3 of the operating mechanism 2 is moved (retracted) so that the fixing cylinder 6 enters at the entry end (back end) as a positioning portion (FIG. 3). Thus, the work on the construction site of the drainage plug device A is completed. The support 3 is moved (retracted) by removing the operation body 32 and inserting a tool from a wide space secured around the operation cylinder 12.
[0028]
As described above, the positioning end of the support 3 for the operating mechanism 2 uses the entry end of the fixing cylinder 6 that sandwiches the tank wall B1 from the inside of the tank. Irrespective of individual differences in the tightening strength between the operating joint 11 and the fixing cylinder 6, the overflow inflow of a certain size between the operating body 32 of the operating mechanism 2 and the tank-side opening of the fixing cylinder 6 is performed. Space L can be secured.
A screw is used as a means for moving (retreating) the support 3 to the positioning section, and the support 3 is used as a lock nut to form an attachment section comprising the operating joint 11 and the fixing cylinder 6. Can be prevented from loosening.
Further, the tightening of the fastening nut N can be performed independently irrespective of the cap nut 7.
[0029]
【The invention's effect】
Since the present invention is a pre-installed drainage plug device configured as described above, even if individual differences occur in the tightening strength between the operating joint and the fixing cylinder, or even if the tank wall thickness varies, the operating mechanism body An overflow inflow space of a certain size can be ensured between the operating body and the tank-side opening of the fixing cylinder.
In addition, since the axial movement of the support of the drainage mechanism is performed by screwing with the operation joint, the support is effectively used as a lock nut to attach the fixing cylinder to the operation joint. It is not necessary to manufacture and prepare a dedicated member to prevent loosening and secure mounting.
[0030]
In addition, the drain plug is provided with a guide body for externally inserting the support cylinder of the drainage mechanism, and the guide body maintains the external cylinder inserted state when the drain port is opened and closed. The body has excellent straightness of the drain cock when opening and closing, and not only can exhibit higher water tightness when closed, but also the movable body is protected by the guide body, so that detergent and sand etc. from the sliding part of the movable part There is no risk of malfunction due to entry into the support cylinder.
In addition, in the conventional basin that pushes the drain cock with the movable shaft, there is a drain cock device such as a sink, which is configured to prevent the swing of the drain cock when the stopper is opened by the anti-vibration blade. In this case, since the drain plug is prevented from swinging at two points above and below the steady portion and its guide, excellent straightness can be provided.
[0031]
In addition, since linear projections that contact the outer surface of the support cylinder along the axial direction are provided on the inner surface of the guide at appropriate intervals, the linear protrusions are retained by the surface tension generated between the guide and the support cylinder. The escape of air is not hindered, the plug is securely closed, and the drain port can be opened and closed with a light operation by line contact.
[Brief description of the drawings]
FIG. 1 is a front sectional view of a drainage plug device according to an embodiment.
FIG. 2 is an exploded view showing a state before the unit is attached to a tank section, and is shown in cross section.
FIG. 3 is a partial enlarged cross-sectional view showing a state in which a support for supporting the operation mechanism is used as a lock nut and is rotated so as to abut a fixing cylinder entry end holding a tank wall;
FIG. 4 is an enlarged sectional view taken along the line (4)-(4) of FIG. 1 and shows a relationship between a support and a guide of the drainage mechanism.
[Explanation of symbols]
A: drain plug device 1: overflow pipe W: release wire 2: operating mechanism 3: support of operating mechanism 4: draining mechanism 5: support of draining mechanism A1: unit B1: tank wall 100: mounting port B2: Tank bottom 6: Fixing cylinder 11: Operation joint 22: Operation shaft 32: Operation body L: Overflow inflow space 14: Support cylinder 24: Movable shaft 9: Drain plug 10a: Linear ridge 200: Drain outlet 10: Guide

Claims (5)

A release wire is wired in the overflow pipe, and a support for supporting an operation mechanism connected to one end of the release wire is disposed on an operation joint provided at an upper end side of the overflow pipe, and a drain connected to the other end of the release wire. In a drain plug device in which a support for supporting the mechanism is provided at the lower end side of the overflow pipe and the unit is attached to the tank, the support for the operating mechanism is provided movably in an operation joint, A fixing cylinder inserted through a mounting port provided on the wall is engaged with the inner surface of the operation joint from the open side, and the tank wall is sandwiched between the fixing cylinder and the operation joint, and the tank wall is fixed. The support body is moved so as to abut on the entrance end of the cylinder body as a positioning part, and a predetermined size of overflow inflows between the operation body of the operation mechanism body and the tank-side opening part of the fixing cylinder body. Space Discharge valve apparatus characterized by being coercive. The drainage plug device according to claim 1, wherein the movement of the support of the operation mechanism is performed by screw fitting with an operation joint. The drain plug device according to claim 1, wherein the operation body is formed so as to be able to be inserted into and removed from an operation shaft of an operation mechanism body. The drainage mechanism is configured to open and close a drain port by pushing a movable shaft that is vertically movably supported by the support cylinder with a release wire that enters from the lower end of the support cylinder and vertically moving a drain plug with the movable shaft. And a guide body for externally inserting the support cylinder into the drain plug, and the guide body maintains the external cylinder inserted state when the drain port is opened and closed. The drain plug device according to any one of the preceding claims. 5. The drainage plug device according to claim 4, wherein linear projections that contact the outer surface of the support cylinder along the axial direction are provided on the inner surface of the guide body at appropriate intervals.

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