JP2017115556A - Remote control drain plug device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote control drain plug device which prevents an operation failure and the damage of a release wire, and is easy in maintenance.SOLUTION: In a remote control drain plug device, a lock mechanism 40 is arranged inside a tank body B, and also arranged in a switch part 35, and an upper end of a lock shaft 41 abuts on a rear side of an upper face of a pushing part 36. An axial direction of the lock shaft is set as a vertical direction, and a slide direction of the switch part sliding with the axial direction of the lock shaft, and an axial direction of an end part of a release wire 20 are arranged so as to be substantially parallel with each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a remote-operated drain plug device that operates a valve member disposed in a tank body.

As a conventional remote-operated drain plug device, a valve member that opens and closes a drain port formed at the bottom of the tank body, an operation unit that moves the valve member up and down, a release wire that transmits the operation of the operation unit to the valve member, and a valve member What is comprised from the lock mechanism holding the raising / lowering state of this is known.
A packing is fitted around the valve member, and hot water can be stored in the tank body when the packing abuts the periphery of the drain port in a watertight manner.
The operation part has a switch part that the user touches, and the switch part is arranged in various places such as the top surface of the tank body, the side surface and the wall surface of the tank body, and the user operates the switch part, It is possible to open and close the drain without directly touching the valve member.
The release wire consists of an outer tube, which is a plastic cylinder, and an inner wire, which is a stranded metal wire. The inner wire slides in the outer tube by pushing operation applied to the switch, and pushes up the valve member. Therefore, the drain opening is opened and closed.
The lock mechanism includes a rotation gear and a fixed gear inside, and is a mechanism that holds the valve member in an ascending state or a descending state by meshing between the rotating gear and the fixed gear.

Here, in the remote-operated drain plug device, when the switch unit is disposed on the side surface or wall surface of the tank body, there are the following problems.
For example, when the tank body is a bathtub, the inner wall of the bathroom exists on the back side of the bathtub, and when the tank body is a kitchen sink or a wash bowl, the inner wall of the cabinet exists on the back side of the sink or bowl. There is not enough space on the back. Therefore, the release wire connected to the end of the switch unit is bent and applied toward the drain (valve member) in the narrow space. At this time, if the inner wire made of a stranded metal wire is bent with a too small bending radius, there is a risk of malfunction or damage.

  In the remote-operated drain plug device described in Patent Document 1, the lock mechanism is arranged inside the tank body, thereby increasing the release wire bending radius to prevent the above-described malfunction and damage.

  Moreover, in the remote-operated drain plug device described in Patent Document 2, the switch part is slidably arranged in the vertical direction, and the release wire end part is arranged in the vertical direction, so that the construction can be performed without bending the release wire. By making it possible, the above malfunction and damage are prevented.

JP 2005-133331 A JP 2014-167251 A

  Although the conventional remote-operated drain plug device has a structure for preventing malfunction and breakage of the release wire, it has the following problems.

  In the remote-operated drain plug device described in Patent Document 1, since the lock mechanism is arranged inside the tank body, the switch part and the lock mechanism protrude greatly inside the tank body, and the design is poor. In addition, when the tank body is a bathtub, the side surface of the tank body is a portion where the bather's back comes into contact, and when the switch portion protrudes greatly inside the tank body, comfortable bathing becomes difficult. Furthermore, since the release wire is still bent in a narrow space, it cannot completely prevent malfunction and breakage.

  On the other hand, in the remote-operated drain plug device described in Patent Document 2, since the end portion of the release wire is arranged in the vertical direction, there is no damage caused by bending in a narrow space. However, since the lock mechanism is disposed in the drainage channel, drainage on the drain outlet side is hindered by the lock mechanism, and the drainage flow rate is reduced. Even if the lock mechanism is disposed at the end of the release wire on the switch unit side, the drainage flow rate of the overflow channel is also lowered by the lock mechanism. Further, when the lock mechanism is arranged at the end of the release wire on the switch side, it is difficult to take out the lock mechanism with a built-in gear or the like from the overflow drain, and maintenance is complicated.

  The present invention has been invented in view of the above problems, and an object of the present invention is to provide a remote-operated drain plug device that can prevent malfunction and breakage of a release wire and can be easily maintained.

The present invention described in claim 1 includes a drain port provided in the tank body,
A valve member that is disposed in the drain port and moves up and down to open and close the drain port;
An operation part arranged on the side surface of the tank body for performing opening / closing operation of the valve member,
In a remote-operated drain plug device comprising a release wire that transmits an operation applied to an operation unit to a valve member,
The operation unit
A switch portion slidably disposed along the inner surface of the tank body;
A lock mechanism for holding the valve member in the raised or lowered state;
The lock mechanism is a remote-operated drain plug device that is disposed inside the tank body.

  The present invention described in claim 2 is the remote-operated drain plug device according to claim 1, wherein the switch portion slides in the vertical direction.

The present invention according to claim 3 is characterized in that the lock mechanism has a lock shaft that is operated by operating a switch part,
The remote-operated drain plug device according to claim 2, wherein the axial direction of the lock shaft is substantially the same as the sliding direction of the switch portion.

  According to the fourth aspect of the present invention, the axial direction of the cylindrical lock shaft and the axial direction of the operation part side end of the release wire are substantially parallel, and the lock shaft and the operation part side end of the release wire 4. The remote-operated drain plug device according to claim 3, wherein the central axis is arranged at different positions.

  According to a fifth aspect of the present invention, in the remote control type drain plug device according to any one of the first to fourth aspects, the release wire is disposed outside the tank body. It is.

The present invention described in claim 6 is characterized in that the switch part protrudes inside the tank body,
The remote-operated drain plug device according to any one of claims 1 to 5, wherein the lock mechanism is disposed in a protruding portion of the switch portion.

  The present invention described in claim 7 is characterized in that the switch portion abuts on the release wire and the lock mechanism, and the release wire and the lock mechanism are moved by a pushing operation. The remote-operated drain plug device according to any one of the above.

According to the first aspect of the present invention, since the lock mechanism is disposed inside the tank body, maintenance can be easily performed. Moreover, when this invention is attached to the tank body which has an overflow flow path, the fall of the waste_water | drain flow rate of the overflow flow by arrange | positioning a lock mechanism in an overflow flow path can be prevented.
According to the second and third aspects of the present invention, since the axial direction of the lock shaft and the sliding direction of the switch part are both in the vertical direction and are substantially the same direction, the lock mechanism is located inside the tank body. Even if it arrange | positions, the protrusion width | variety to the tank body inside of an operation part can be shortened. Further, as in the fourth aspect of the present invention, when the axial direction of the lock shaft and the axial direction of the operation portion side end portion of the release wire are substantially closed and the central axis is arranged at a different position, the release wire Can be prevented from being bent in a narrow space.
According to the fifth aspect of the present invention, since the lock mechanism is not directly connected to the release wire, only the lock mechanism or only the release wire can be removed, and the maintainability is excellent.
According to the sixth aspect of the present invention, since the lock mechanism is housed in the protruding portion of the switch portion, the lock mechanism is not exposed to the outside and has excellent design, and the amount of protrusion to the inside of the tank body is reduced. It becomes possible to reduce.
According to the seventh aspect of the present invention, the switch portion can move the release wire and the lock mechanism by a pushing operation.

It is sectional drawing which shows the construction state of this invention. It is an expanded sectional view of an operation part. It is an exploded view which shows the structure of an operation part. It is a front view which shows a switch part and an auxiliary member, Comprising: (a) The front view which shows the positional relationship when a valve member is in a downward state (b) The front view which shows the positional relationship when a valve member is in an upward state is there. It is a perspective view which shows a locking mechanism. It is (a) front view (b) bottom view which shows an auxiliary member. It is sectional drawing which shows the construction procedure of a remote control type drain plug device. It is sectional drawing which shows the construction procedure of a remote control type drain plug device. It is sectional drawing which shows the construction procedure of a remote control type drain plug device. It is sectional drawing which shows the raising state of a valve member. It is sectional drawing which shows the construction state of 2nd embodiment. It is sectional drawing which shows the raising state of a valve member. It is sectional drawing which shows 3rd embodiment. It is sectional drawing which shows 4th embodiment.

  Below, the water stop structure of this invention is demonstrated, referring drawings. Note that the description given below facilitates understanding of the embodiment, and the present invention is not limited and understood by this. Moreover, in the following embodiments, the positional relationship between the upper and lower sides and the members and members will be described based on the construction state shown in FIG. 1 unless otherwise specified.

  As shown in FIGS. 1 to 10, this embodiment is a remote-operated drain plug device that remotely opens and closes a drain port 2 formed at the bottom of a tank body B. 1, a valve member 18, a release wire 20, and an operation unit 30.

  The tank body B is a box-shaped bathtub opened upward, and circular holes are opened in the bottom and side portions, and the drain plug 1 is attached to the opening in the bottom portion. The operation unit 30 is attached.

The drain plug 1 is a cylindrical member having a flange at the upper end, in which a drain port 2 for discharging the drainage from the tank body B is formed, and a male screw is screwed on the outer periphery of the cylindrical portion. It is engraved. Further, the drain plug 1 has a wire receiver 15 attached to a convex portion formed inside. The cylindrical portion of the drain plug 1 is inserted into an opening formed on the bottom surface of the tank body B and is screwed with a drainer 5 disposed on the back surface of the tank body B.
The drainage device 5 is screwed to the lower end of the drainage plug 1 by a female screw threaded on the upstream side, and on the downstream side, drainage that has flowed into the interior is further connected to a downstream pipe (not shown). A discharge port 7 for discharging is formed at the lower end. Further, the drainage device 5 is provided with a branch pipe part 6 on the side, and the branch pipe part 6 is connected to the operation part 30 through a flexible overflow pipe 10.
The wire receiver 15 is locked to a convex portion formed inside the drain plug 1 by a claw portion, and includes a bearing portion 16 that fixes the valve shaft 26 at the end of the release wire 20.

  The valve member 18 is a lid member having a packing fitted to the outer peripheral surface. As shown in FIG. 1, the valve member 18 is in contact with the drain plug 1 when the valve member 18 is lowered. Is closed watertight. Further, the valve member 18 is fitted with the tip of the valve shaft 26 on the back surface, and is lifted by being pushed up by the valve shaft 26.

The release wire 20 is a motion transmission member composed of an outer tube 21 and an inner wire 22, and includes a wire shaft 23 at the operation unit 30 side end and a valve shaft 26 at the drain port 2 side end.
The outer tube 21 is a hollow resin tube having flexibility in the lateral direction, and an inner wire 22 that is a stranded metal wire having flexibility in the lateral direction is slidably disposed therein. .

The wire shaft 23 is a metal core member connected to the end portion of the inner wire 22, and is slidably disposed inside the support tube 24, and its upper end is connected to the operation unit 30.
The support cylinder 24 is a cylindrical body made of a hard resin material, and is supported by the fixing portion 34 of the overflow elbow 31. Further, the end of the outer tube 21 is connected to the lower end of the support cylinder 24, and the wire shaft 23, the inner wire 22 and the return spring 25 are arranged inside.
The return spring 25 has a lower end that is in contact with an inner flange formed at the lower end of the support cylinder 24, and an upper end that is in contact with the lower end of the wire shaft 23 and urges the wire shaft 23 upward.
Here, the wire shaft 23 and the support cylinder 24 are arranged so that the central axes thereof are in the vertical direction, and the axial directions of the wire shaft 23, the support cylinder 24, and the end of the release wire 20 on the operation unit 30 side will be described later. The direction is substantially the same as the sliding direction of the switch portion 35.

  The valve shaft 26 is a cylindrical body formed at the end of the release wire 20 on the drain port 2 side, and includes an outer cylinder 27 and an inner cylinder 28. The outer cylinder 27 is a hollow cylindrical body to which the outer tube 21 is connected. The inner cylinder 28 is housed inside, and the outer surface is locked to the bearing portion 16 of the wire receiver 15. The inner cylinder 28 is a cylinder body to which the inner wire 22 is connected. The inner cylinder 28 is disposed so as to be slidable in the vertical direction inside the outer cylinder 27, and a shock absorber spring is accommodated therein. Further, the upper end of the inner cylinder 28 is fitted to the back surface of the valve member 18, and the inner wire 28 protrudes from the outer cylinder 27 when the inner wire 22 slides in the outer tube 21, thereby raising the valve member 18. It is possible. When an impact is applied to the valve shaft 26 from above with the inner cylinder 28 protruding, the shock absorber spring contracts to absorb the impact and prevent damage to the member.

  As shown in FIGS. 1 to 6, the operation unit 30 is attached to an opening formed on the side surface of the tank body B, and includes an overflow elbow 31, a switch unit 35, a lock mechanism 40, and an auxiliary member 50.

  As shown in FIGS. 2 and 3, the overflow elbow 31 is a substantially L-shaped piping member having a pipe line bent by about 90 degrees, and has a flange portion that is provided around the upstream side in the outward direction. In addition, an inflow port 32 is formed in the side surface direction (left direction in FIG. 2), and an outflow port 33 is formed in the downstream end portion downward. A plurality of convex portions are formed on the inner peripheral surface of the overflow elbow 31 on the inlet 32 side, and the lock mechanism 40 is locked to the convex portions. Further, a substantially circular fixing part 34 having a notch in part is formed on the inner peripheral surface on the outlet 33 side, and a support tube 24 of the release wire 20 is attached to the fixing part 34. . The fixed portion 34 is substantially U-shaped, and its inner diameter is substantially the same as the inner diameter of the support tube 24.

As shown in FIGS. 3 and 4, the switch portion 35 includes a pushing portion 36, a support portion 37, and a connection portion 38, and is vertically moved along the inner surface of the tank body B when a user operation is performed. It is slidable.
The pushing portion 36 is composed of an upper surface and a side surface protruding into the tank body B, has a substantially L shape in sectional view, and has a lock mechanism 40 disposed therein. Further, the pusher 36 is open at the bottom, so that the hot water of the tank B can flow into the inlet 32. As shown in FIG. 4A, the pushing portion 36 has a substantially rectangular shape when viewed from the front, is disposed between the guide portions 52 of the auxiliary member 50, and when the valve member 18 is in the raised state. The upper end and the lower end are formed so as to be flush with the adjacent guide portion 52.
The support portion 37 extends from the back surface of the pushing portion 36 (right side in FIG. 2) into the overflow elbow 31, and a connection portion 38 is formed at the end.
The connection portion 38 is substantially L-shaped in cross-section, and the tip of the wire shaft 23 is in contact with the connection portion 38 to transmit the operation applied to the pushing portion 36 to the wire shaft 23.
As described above, in the switch portion 35, the pushing portion 36 is in contact with the lock mechanism 40, and the connecting portion 38 is in contact with the release wire 20. When the switch portion 35 is lowered by the pushing operation, the release wire 20 and the lock The mechanism 40 can be moved simultaneously.

As shown in FIGS. 2 and 3, the lock mechanism 40 is a holding mechanism called a thrust lock mechanism, in which a fixed gear is formed on the inner periphery of the casing, and a lock shaft 41 having a rotation gear at the center of the casing. Is arranged.
The lock shaft 41 penetrates the upper surface of the casing and extends to the back side of the upper surface of the pushing portion 36 and is disposed so as to be movable up and down in the casing. It is mounted so that it cannot move up and down. When the lock shaft 41 is lowered, the lock mechanism 40 can hold the lowered state of the lock shaft 41 by meshing of the rotating gear and the fixed gear.
The lock mechanism 40 is disposed inside the switch unit 35, and the upper end of the lock shaft 41 is in contact with the back side of the upper surface of the pushing unit 36. Further, since the lock shaft 41 is arranged so that the axial direction thereof is the vertical direction, the axial direction of the lock shaft 41 and the sliding direction of the switch unit 35 and the axial direction of the end of the release wire 20 are substantially parallel ( Almost identical). Since the lock mechanism 40 is arranged inside the tank body B, the central axis of the lock shaft 41 and the central axis of the end portion on the operation unit 30 side of the release wire 20 are arranged at different positions. .
As shown in FIG. 5, the lock mechanism 40 is formed integrally with an annular portion 42 outside the casing. The annular portion 42 has an outer diameter substantially the same as that of the inflow port 32, and is fixed in the overflow elbow 31 by engaging a claw portion with a convex portion in the overflow elbow 31.

As shown in FIG. 6, the auxiliary member 50 is substantially U-shaped in a plan view in which a notch 51 is formed from the lower side to the upper side, and guide portions 52 having a substantially rectangular shape in a plan view are provided upright at both ends. .
Here, as shown in FIGS. 2 and 4 and the like, the auxiliary member 50 has the notch 51 inserted into the back surface of the flange elbow 31 so that the longitudinal direction of the guide portion 52 faces the vertical direction, It is sandwiched between the side wall of the tank body B and the flange of the overflow elbow 31.

  The remote-operated drain plug device is constructed as follows. In addition, in the construction procedure demonstrated below, the description is abbreviate | omitted about the drain piping downstream from the drainage device 5. FIG.

First, after attaching the drain plug 1 and the drainage device 5 to the opening formed in the bottom of the tank body B, the overflow elbow is inserted into the opening formed in the side surface of the tank body B with the notch 51 of the auxiliary member 50 inserted. 31 is attached, and the overflow pipe 10 is connected to the branch pipe portion 6 of the drainage device 5 and the outlet 33 of the overflow elbow 31. At this time, a drainage channel through which the wastewater that flows in from the drainage port 2 flows and an overflow channel through which the wastewater that flows in from the inlet 32 flows are formed. Note that the back surface of the collar portion of the overflow elbow 31 is provided with a positioning mechanism (not shown), and is arranged so that the longitudinal direction of the guide portion 52 faces the vertical direction.
Next, as shown in FIG. 7, the valve shaft 26 side of the release wire 20 is inserted into the overflow elbow 31 through the inflow port 32, and the support tube 24 of the release wire 20 is attached to the fixing portion 34. At this time, the release wire 20 is guided by the overflow pipe 10, and the valve shaft 26 reaches the drainage device 5 from the branch pipe portion 6. The valve shaft 26 is taken out from the drain port 2 into the tank body B, and the valve shaft 26 is fixed to the wire receiver 15, and then the claw portion of the wire receiver 15 is engaged with the convex portion of the drain plug 1 and fixed.
Then, as shown in FIG. 8, the lock mechanism 40 is inserted from the inlet 32 and fixed in the overflow elbow 31, and then the switch portion 35 is attached to the inlet 32 as shown in FIG. 9. At this time, the switch portion 35 is disposed between the guide portions 52 of the auxiliary member 50 and is guided so as to be slidable only in the vertical direction. Can be transmitted to the wire shaft 23.
Finally, the valve member 18 is fitted to the valve shaft 26 to complete the construction.

In the remote-operated drain plug device of the present invention, when performing maintenance of the lock mechanism 40, the lock mechanism 40 can be detached from the overflow elbow 31 by removing the switch 35, and maintenance can be performed. Further, when performing maintenance on the release wire 20, after removing the lock mechanism 40, the wire receiver 15 is removed from the drain plug 1, the fixing of the wire receiver 15 and the valve shaft 26 is released, and the support cylinder 24 is fixed. Remove from section 34. Maintenance can be performed by pulling out the release wire 20 from the inlet 32.
In the present invention, since the lock mechanism 40 and the release wire 20 are not directly connected, it is possible to perform maintenance by removing only the lock mechanism 40.

  Below, operation | movement of the remote control type drain plug of this invention and the flow of hot water are demonstrated.

First, as shown in FIG. 1, when the valve member 18 is lowered, the packing fitted around the valve member 18 is in watertight contact with the upper surface of the drain plug 1, and the inside of the tank B It is possible to store hot water.
When the user pushes the upper surface of the pushing portion 36 of the switch portion 35 downward from the lowered state of the valve member 18, the connecting portion 38 and the wire shaft 23 are pushed down via the support portion 37. Since the inner wire 22 is connected to the wire shaft 23, the inner tube 28 slides toward the valve member 18 side as the wire shaft 23 is pushed down, and the inner tube 28 protrudes from the outer tube 27 to cause the valve. The member 18 is raised. At this time, as shown in FIG. 10, the lock shaft 41 is also lowered as the pushing portion 36 is pushed down, and the rotary gear is rotated as the lock shaft 41 is lowered, and meshed with the fixed gear. The rising state of the member 18 is maintained. As shown in FIG. 4B, when the valve member 18 is in the raised state, the switch portion 35 is positioned below the adjacent guide portion 52 in plan view, and the user The state of the valve member 18 can be grasped by visually observing the switch part 35.

  When the upper surface of the pushing portion 36 of the switch portion 35 is pushed downward again by the user from the raised state of the valve member 18, the support portion 37, the connecting portion 38, the wire shaft 23, and the inner wire 22 are also lowered. Then, the valve member 18 rises slightly. At this time, when the lock shaft 41 is lowered again, the rotation gear rotates and the meshing with the fixed gear is released. Therefore, when the pushing operation to the pushing portion 36 is finished, the valve member 18 is lowered by its own weight and the elasticity of the return spring 25, and the pushing portion 36 is adjacent to the upper end and the lower end as shown in FIG. The guide portion 52 returns to a position that is substantially flush with the upper and lower ends of the guide portion 52. At this time, the packing fitted to the valve member 18 again comes into contact with the upper surface of the drain plug 1 in a watertight manner, and the drain port 2 is closed.

As described above, when the valve member 18 is in the raised state, the hot water stored in the tank body B flows into the drain plug 1 from the drain port 2, and drains further downstream (not shown) via the drain 5. It is discharged into the piping.
On the other hand, when the valve member 18 is in the lowered state, hot water can be stored in the tank body B. Here, when hot water is stored in the tank body B beyond the lower end of the inflow port 32, the hot water flows into the inflow port 32 and the overflow elbow 31 from the lower end of the pushing portion 36 and passes through the overflow pipe 10. It flows into the drainage device 5 from the branch pipe section 6 and is discharged to a further downstream drainage pipe (not shown). At this time, in the present invention, since the lock mechanism 40 is not disposed in the overflow channel, the drainage flow rate of the overflow channel does not decrease.

In the remote-operated drain plug device of the present invention, since the lock mechanism 40 is disposed inside the tank body B, maintenance can be easily performed, and the lock mechanism 40 is disposed in the overflow channel. Therefore, it is possible to prevent a decrease in the drainage flow rate of the overflow channel. In the present invention, the release wire 20 and the lock mechanism 40 are independently arranged and are not directly connected. Therefore, it is possible to remove the lock mechanism 40 and perform maintenance.
Further, since the axial direction of the lock shaft 41 and the sliding direction of the switch portion 35 are both in the vertical direction and are substantially the same direction (substantially parallel), the lock mechanism 40 is disposed inside the tank body B. Moreover, the protrusion width | variety to the tank body B inside of the operation part 30 can also be shortened. Furthermore, in the present invention, the axial direction of the end of the release wire 20 on the side of the operation unit 30 is also the vertical direction, so that the release wire 20 does not need to be bent, and operation failure and damage to members can be prevented. .

  The first embodiment of the present invention is as described above. However, the present invention is not limited to the configuration of the first embodiment, and various shape changes can be made without departing from the scope of the invention. In other embodiments described below, the same reference numerals are given to the same components as those in the first embodiment unless otherwise specified, and description thereof is omitted.

In the first embodiment, the inner wire 22 is a metal stranded wire. However, the metal stranded wire has high resistance to tensile stress, but low resistance to compressive stress. Therefore, as in the second embodiment shown in FIGS. 11 and 12, the release wire 20 may be configured to be pulled up toward the operation unit 30 when a push operation is applied to the switch unit 35.
The remote-operated drain plug device according to the second embodiment includes a rotating member 60 inside the overflow elbow 31, and the connection portion 38 and the wire shaft 23 of the switch portion 35 include a gear portion that engages with the rotating member 60. Yes.
In the second embodiment, when the pushing portion 36 is pushed down, the connecting portion 38 has a structure that raises the wire shaft 23 via the rotating member 60 and pulls up the inner wire 22. Therefore, as shown in FIG. 11, when the lock shaft 41 is in the lowered state, the valve member 18 is in the lowered state, and the drain port 2 is closed. On the other hand, as shown in FIG. 12, when the lock shaft 41 is raised, the valve member 18 is raised and the drain port 2 is opened. Here, in the first embodiment, when the valve member 18 is lowered, the upper and lower ends of the guide portion 52 adjacent to the pushing portion 36 are substantially flush with each other. When the valve member is raised, the upper end and the lower end of the guide portion 52 adjacent to the pushing portion 36 are substantially flush with each other.
The second embodiment has a structure that prevents the pushing operation from being directly applied to the inner wire 22 in the compression direction. Therefore, the inner wire 22 can be prevented from being damaged by avoiding the stress in the compression direction that is momentarily strongly applied during the pushing operation.

  In the first and second embodiments, the upper end and the lower end of the pushing portion 36 are substantially flush with the adjacent guide portion 52 when the lock shaft 41 is raised. The upper end and the lower end of the pushing portion 36 may be substantially flush with the adjacent guide portion 52 in the lowered state. That is, in the first and second embodiments, the pushing portion 36 protrudes downward with respect to the adjacent guide portion 52. However, when the lock shaft 41 is raised, the pushing portion 36 is adjacent to the adjacent guide portion 52. It may be in a state of protruding upward with respect to 52.

  In the first embodiment, the overflow elbow 31 is composed of one member and is screwed with a nut from the rear surface of the tank B. However, as in the third embodiment shown in FIG. You may comprise 31 from two members. In this case, it is possible to perform screwing from the inside of the tank body B, and the attachment of the overflow elbow 31 becomes easy.

  In each of the above embodiments, the lock mechanism 40 has a structure in which the casing is fixed to the inlet 32 and the lock shaft 41 is pushed down. However, as in the fourth embodiment shown in FIG. May be fixed to the inflow port 32 and the casing may be pushed down.

In the above embodiments, the sliding direction of the switch unit 35 is the vertical direction, but it may slide in the horizontal direction. In this case, a structure may be adopted in which the axial direction of the lock shaft 41 is set to the left-right direction to prevent the apparatus from becoming large.
Further, the end of the release wire 22 on the operation unit 30 side may also be in the horizontal direction. In this case, since the space on the back side of the tank body B has a certain width in the horizontal direction, the release wire 20 can be bent with a large bending radius. The “left-right direction” here refers to the left-right direction in FIG. 4, not the left-right direction in FIG. That is, the switch unit 35 and the auxiliary member 50 shown in FIG. 4 may be rotated 90 degrees, and the switch unit 35 may be slid in the left-right direction. In this case, it is preferable that the lock mechanism 40 and the wire shaft 23 are also arranged in a direction rotated 90 degrees along the sliding direction of the switch unit 35.

  In the above embodiments, the present invention is attached to a tank body having an overflow channel. However, the tank body in which the present invention is constructed is not limited to the tank body. Moreover, this invention may be attached to tank bodies, such as a kitchen sink and a wash bowl.

DESCRIPTION OF SYMBOLS 1 Drain plug 2 Drain outlet 5 Drainage device 6 Branch pipe part 7 Discharge port 10 Overflow pipe 15 Wire receiver 16 Bearing part 18 Valve member 20 Release wire 21 Outer tube 22 Inner wire 23 Wire shaft 24 Support cylinder 25 Return spring 26 Valve shaft 27 Outer cylinder 28 Inner cylinder 30 Operation part 31 Overflow elbow 32 Inlet 33 Outlet 34 Fixing part 35 Switch part 36 Pushing part 37 Bearing part 38 Connection part 40 Lock mechanism 41 Lock shaft 42 Annular part 50 Auxiliary member 51 Notch part 52 Guide part 60 Rotating member B Tank

Claims (7)

A drain outlet provided in the tank body;
A valve member that is disposed in the drain port and moves up and down to open and close the drain port;
An operation part arranged on the side surface of the tank body for performing opening / closing operation of the valve member,
In a remote-operated drain plug device comprising a release wire that transmits an operation applied to an operation unit to a valve member,
The operation unit
A switch portion slidably disposed along the inner surface of the tank body;
A lock mechanism for holding the valve member in the raised or lowered state;
The remote-operated drain plug device, wherein the lock mechanism is disposed inside the tank body. The remote-operated drain plug device according to claim 1, wherein the switch portion slides in the vertical direction. The lock mechanism has a lock shaft that operates by operating the switch unit,
The remote-operated drain plug device according to claim 2, wherein an axial direction of the lock shaft is substantially the same as a sliding direction of the switch portion. The axial direction of the cylindrical lock shaft and the axial direction of the operation part side end of the release wire are substantially parallel, and the central axis of the lock shaft and the operation part side end of the release wire are arranged at different positions. The remote-operated drain plug device according to claim 3, wherein:   The remote-operated drain plug device according to any one of claims 1 to 4, wherein the release wire is disposed outside the tank body. The switch part protrudes inside the tank body,
The remote-operated drain plug device according to any one of claims 1 to 5, wherein the lock mechanism is disposed in a protruding portion of the switch portion.   The remote-operated drainage according to any one of claims 1 to 6, wherein the switch unit is in contact with a release wire and a lock mechanism, and moves the release wire and the lock mechanism by a pushing operation. Stopper device.

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