JP6631779B2 - Remotely operated drain valve - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote-operated drain plug device for remotely operating a valve for opening and closing a drain port formed on a bottom surface of a tank such as a bathtub, a washbasin, and a sink.

  Patent Literature 1 discloses a remote-operated drain plug device that operates a valve body by manual or electric operation to open and close a drain port formed in a bottom of a tank body.

  The remote-operated drain plug device includes a manual operation unit and an electric drive unit, the electric drive unit includes a motor as a drive unit, a power conversion unit that converts a rotational motion of the motor into a vertical motion, The power transmission unit is configured to transmit the vertical movement converted by the power conversion unit to the manual operation unit.

  The manual operation unit raises the valve body via a release connected to the manual operation shaft based on a pressing operation on the manual operation button, and holds the raised state of the valve body by a thrust lock mechanism. When the valve body is lowered, the holding by the thrust lock mechanism is released via the release by pressing the manual operation button again.

  When the valve body is operated by an electric operation, an electric signal is sent to an electric drive unit to rotate the motor, convert the rotational motion of the motor by the power conversion unit, and lower the power transmission unit. The power transmission unit pushes down a driven member disposed on the manually operated shaft as it descends, raises the valve body via the release, and holds the raised state of the valve body by the thrust lock mechanism. After the driven member is pushed down, the power transmission unit automatically returns to the original position by rotation of the motor. When the valve body is lowered, the power transmission unit pushes down the driven member again to release the holding by the thrust lock mechanism. Also at this time, the power transmission unit automatically returns to the original position by the rotation of the motor after pushing down the driven member.

  That is, since the power transmission unit returns to the original position after the power transmission unit pushes down the driven member, the remote-operated drainage plug device can perform a manual operation even after the electric operation, and can be electrically driven. Even if the part breaks down, the drain can be opened and closed manually.

Patent No. 3882165

  However, the remote-operated drain plug device described in Patent Document 1 fails while the power transmission unit is pushing down the driven unit, and if the operation stops, the manually operated shaft and the power transmission unit interfere with each other. Therefore, there is a problem that it is impossible to perform both the manual operation and the electric operation. Further, when the problem occurs in the remote-operated drainage plug device described in Patent Literature 1, it is necessary to remove the apron portion of the tank body and remove the unitized electric drive portion. However, it is difficult for a general user to remove the apron portion of the tank body, and since the inside of the apron portion does not have sufficient space for work, the removal operation is very complicated.

  The present invention has been made in view of the above problems, and in a remote-operated drain plug device having a plurality of operation units, even if one of the operation units fails, the other operation unit raises and lowers the valve body. The purpose of the present invention is to provide a remote-operated drainage plug that can be used.

The present invention according to claim 1, wherein a drain port provided at the bottom of the tank body,
A valve body that opens and closes the drain port by raising and lowering motion,
In a remote-operated drainage plug device comprising an operation unit for performing a lifting operation of a valve body,
The operation unit includes a first operation unit, a second operation unit, and a release mechanism,
The first operation unit includes:
An operation transmission unit that transmits the operation of the first operation unit to the second operation unit,
The second operation unit,
Operation buttons,
A driven unit engaged with the operation transmitting unit and interlocked with the operation of the first operation unit,
The release mechanism can release the engagement between the operation transmitting unit and the driven unit based on an arbitrary operation, and can perform the release operation by removing the valve body or the operation button.
The release mechanism is a remote-operated drainage plug device, which is disposed behind the detached valve element or the operation button.

In addition, the above-mentioned "disposed on the back side of the valve body or the operation button from which the release mechanism is removed"
When the release mechanism is arranged on the valve body side, when the valve body is removed, the release mechanism is arranged further behind the position where the valve body was located, which means that,
When the release mechanism is disposed on the operation unit side, when the operation button is removed, the release mechanism is disposed further behind the position where the operation button was located, meaning that
This does not mean a mode in which the release mechanism is arranged on the valve body or the operation button itself, and the arranged position is inside the valve body or the operation button.

In the present invention according to claim 2, the second operation unit includes a manual operation shaft attached to an operation button back surface,
2. The remote-operated drainage plug device according to claim 1 , wherein the release mechanism can release the engagement between the operation transmitting unit and the driven unit by rotating a manually operated shaft.

According to the third aspect of the present invention, the operation transmitting section has a notch through which the manual operation shaft passes,
3. The engagement mechanism according to claim 2, wherein the release mechanism can release the engagement between the operation transmitting unit and the driven unit by rotating the manual operation shaft and aligning the position of the notch with the driven unit. This is a remote-operated drain plug device.

  According to the present invention, when an abnormality such as a failure occurs at a position where the first operation unit interferes with the second operation unit, the engagement between the operation transmission unit and the driven unit is released by the release mechanism. The second operation unit can be operated. The release mechanism is located at the back of the valve body or the operation button, and the release operation can be performed by removing the valve body or the operation button. The release operation of the release mechanism can be performed without providing.

It is sectional drawing which shows the construction state of a remote control type drainage plug device. It is a reference drawing showing the composition of the remote control type drainage plug device. It is sectional drawing which shows an operation part. FIG. 4 is a sectional view taken along line A-A ′ of FIG. 3. FIG. 4 is an exploded perspective view illustrating a member configuration of an operation unit. It is a perspective view showing the engagement state of the operation transmitting part and the following part. It is sectional drawing which shows the state which the valve body rose by operation of the manual operation part. It is sectional drawing which shows the state which the valve body rose by operation of the electric operation part. FIG. 7A is a reference view showing a state in which the manually operated shaft is rotated from the cross-sectional view taken along line A-A ′ of FIG. It is a perspective view showing the state where engagement of a motion transmission part and a following part was released. It is sectional drawing which shows the state which the engagement of the operation | movement transmission part and the driven part was cancelled. It is sectional drawing which shows the operation | movement state of a release mechanism. It is sectional drawing which shows the construction state of the remote control type drainage plug device of 2nd embodiment. FIG. 4 is an exploded perspective view illustrating a member configuration of an operation unit. It is a perspective view showing the engagement state of the operation transmitting part and the following part. It is sectional drawing which shows the state which the valve body rose by operation of the manual operation part. It is sectional drawing which shows the state which the valve body rose by operation of the electric operation part. (A) is a reference view showing a state in which the valve shaft has been rotated from the cross-sectional views taken along the line A-A 'of FIG. It is a perspective view showing the state where engagement of a motion transmission part and a following part was released. It is sectional drawing which shows the state which the engagement of the operation | movement transmission part and the driven part was cancelled. It is sectional drawing which shows the construction state of the remote control type drainage plug device of 3rd embodiment.

  Hereinafter, a remotely operated drainage plug device of the present invention will be described with reference to the drawings. The following description is for the purpose of facilitating the understanding of the embodiments, and the present invention is not limited thereto. In the following embodiments, the positional relationship between the top, bottom, left, right, and members will be described based on the construction state shown in FIG. 1 unless otherwise specified.

  As shown in FIGS. 1 and 2, the remote-operated drain plug device according to the present embodiment is attached to a tank body B, and includes a drain plug 1, an operation unit 10, a release wire 3, and a valve 9. I have.

  The tub body B is a box-shaped tub whose upper part is opened, and is arranged in the bathroom adjacent to the washing place. The tank body B has openings at the bottom and edges thereof, and the drain plug 1 and the operation unit 10 are respectively attached to the openings.

  The drain plug 1 is a substantially cylindrical member having a through hole in the axial direction, a male screw is threaded on the outer periphery, and a flange is formed outward at the upper end. The drain plug 1 is fitted with a wire receiver 2 for arranging the end of the release wire 3 in the drain plug 1 in a convex portion formed on the inner periphery, and the wire receiver 2 has a valve shaft 6. Is held. When the drain plug 1 is attached to the bottom surface of the tank body B, the opening on the upper end side of the through hole formed in the axial direction functions as a drain port.

  The valve body 9 is a lid member in which packing is fitted on the outer peripheral surface. As shown in FIG. 1, when the valve body 9 is in a lowered state, the packing comes into contact with the drain plug 1 to open a drain port. Close. Further, the front end of the valve shaft 6 is fitted on the back surface of the valve element 9.

  As shown in FIGS. 2 to 6, the operation unit 10 includes a first operation unit 14, a second operation unit 31, and a thrust lock mechanism 37. The release wire 3 is connected to an end of the thrust lock mechanism 37. Have been. Further, some members of the first operation unit 14 and the second operation unit 31 are housed inside the casing 12 and are fixed to the edge of the tank B by the flange 11, and the thrust lock mechanism 37 is It is connected to the lower end of the casing 12 by a C-ring. The operation unit 10 includes a release mechanism that releases the engagement between the operation transmission unit 21 and the driven unit 35 described below.

  The flange 11 is cylindrical, has a flange at the upper end, is attached to an opening formed at the edge of the tank B, and has a casing 12 connected to the lower end.

  The casing 12 is a box-shaped member that stores a part of the members of the manual operation unit 32 and the electric operation unit 15, and is disposed on the back surface of the edge of the tank B.

  The first operation unit 14 is an electric operation unit 15 that performs a raising / lowering operation of the valve body 9 based on an electric signal, and includes an electric operation button 16, a driving unit 18, a screw cylinder 20, and an operation transmission unit 21. At the same time, the operation transmitting section 21 has a damage prevention mechanism.

The electric operation button 16 is an operation button for transmitting an electric signal to the drive unit 18, and is attached to a base 17 which is arranged outside a bathroom such as a dressing room and controls the operation of the drive unit 18 as shown in FIG. Has been.
The drive unit 18 is a motor that is driven based on an electric signal transmitted by operating the electric operation button 16, and is disposed at a lower right portion of the casing 12 in FIG. 3, and has a power supply (not shown) via a cord. ), And the base 17. The base 17 controls the driving of the driving unit 18, and changes the rotation direction of the driving unit 18 based on the position information of the operation transmitting unit 21 detected by the sensor 26. Then, control such as stopping the driving of the driving unit 18 is performed. The output shaft 19 of the drive unit 18 has a hexagonal prism shape, and is inserted into the lower end of the screw cylinder 20.
The screw cylinder 20 has a cylindrical shape with a male screw formed on the outer periphery, has a hole at the lower end having substantially the same shape as the outer diameter of the output shaft 19, and the output shaft 19 is inserted therein.
As shown in FIGS. 4 to 6, the operation transmitting section 21 has one end screwed to the screw cylinder 20 and an engaging section 22 formed at the other end via a support section 23. The engaging portion 22 has a substantially circular shape in a plan view, and a driven portion 35 is disposed inside. The engaging portion 22 has a substantially oval-shaped notch 24 at the center, and is engaged with the driven portion 35 on the back surface (lower surface) of the engaging portion 22. As shown in FIG. 3, when the drive unit 18 is not driven (when the first operation unit 14 is not operated), the engagement unit 22 is larger than the driven unit 35 when the valve body 9 is in the down state. It is disposed above and at a height position that does not interfere with the operation of the driven portion 35. The support portion 23 has a damage prevention mechanism disposed therein, and extends from the screw cylinder 20 toward the manual operation shaft 34 of the manual operation portion 32. The operation transmitting unit 21 can be operated only in the vertical direction by a guide unit (not shown), and its position information is detected by the sensor 26.
As shown in FIG. 4, the damage prevention mechanism attaches a substantially hexagonal nut-like cam portion 28 in a plan view, a locking portion 29 in contact with a side surface of the cam portion 28, and the locking portion 29 to the cam portion 28. It comprises a biasing spring 30. The cam portion 28 has a female screw formed on the inner periphery, and is screwed to the screw cylinder 20. The cam portion 28 is rotatably disposed inside the operation transmitting portion 21, but the locking portion 29 urged by the spring 30 abuts on a side surface of the cam portion 28, thereby suppressing the rotation.

  The second operation unit 31 is a manual operation unit 32 that performs a lifting operation of the valve body 9 based on a manual push operation, and includes a manual operation button 33, a manual operation shaft 34, and a driven unit 35.

The manual operation button 33 is an operation button having a substantially circular shape in plan view, which is directly pushed and moved up and down by the user, and the upper surface thereof is arranged at a position flush with the upper surface of the flange 11 when the valve body 9 is lowered. And its surface is exposed in the bathroom. A manual operation shaft 34 is fitted on the back surface of the manual operation button 33.
The manual operation shaft 34 is mounted on the back surface of the manual operation button 33, that is, below the manual operation button 33 and inside the flange 11 by being attached to the back surface of the manual operation button 33. 24, and the lower end extends to a position where the lower end contacts the lock shaft 38 of the thrust lock mechanism 37. The manual operation shaft 34 has a grip portion 36 having arc-shaped finger hooks at two locations on the upper side, and a driven portion 35 on the lower side.
The driven portion 35 is a substantially elliptical flange portion in plan view as shown in FIGS. 5, 6, and 9, and has a shape similar to the notch 24 formed in the operation transmitting portion 21. . The driven portion 35 is disposed in the engagement portion 22 of the operation transmitting portion 21, and as shown in FIG. 9A, the position (direction) of the driven portion 35 and the notch 24 is different. 9B engages with the back surface of the engaging portion 22, and as shown in FIG. 9B, when the position of the driven portion 35 and the It is possible to pass inside.

  The release wire 3 includes an outer tube 4 and an inner wire 5. One end of the release wire 3 is connected to the valve shaft 6, and the other end is connected to a thrust lock mechanism 37 of the operation unit 10. The performed operation is transmitted to the valve shaft 6. The outer tube 4 is a resin tube body having flexibility in the side direction, and has an inner wire 5 which is a metal stranded wire having flexibility in the side direction slidably disposed therein. . The release wire 3 has a return spring at the end on the thrust lock mechanism 37 side, which constantly urges the inner wire 5 toward the thrust lock mechanism 37 side.

  The valve shaft 6 is a cylindrical body composed of an outer cylinder and an inner cylinder. The outer tube 4 is connected to the outer cylinder, and the inner wire 5 is connected to the inner cylinder. Here, the outer cylinder is held by the wire receiver 2, and the valve body 9 is fitted to the upper end of the inner cylinder. Therefore, when the inner wire 5 slides in the outer tube 4 and the inner cylinder projects from the outer cylinder, the valve element 9 can be moved up and down.

  The thrust lock mechanism 37 includes a rotating gear and a fixed gear inside. When the lock shaft 38 is pushed, the inner wire 5 connected to the lower end advances and retreats to raise the valve body 9, and the rotating gear and the fixed gear Is a mechanism for maintaining the rising state of the valve body 9 by the meshing of. When the lock shaft 38 is pushed again, the engagement between the rotating gear and the fixed gear is released, and the holding of the valve body 9 in the raised state is released. Therefore, the thrust lock mechanism 37 can switch between the up state and the down state of the valve element 9 each time the lock shaft 38 is pushed.

  The release mechanism is formed by the manual operation shaft 34 and the engaging portion 22, and the manual operation button 33 is removed, and the rotation of the manual operation shaft 34 is applied. Can be canceled.

  Hereinafter, the operation of the remotely operated drain plug device of the present invention will be described.

First, the operation of the manual operation unit 32 will be described.
When the push operation is applied to the manual operation button 33 from the state shown in FIGS. 1 and 3, as shown in FIG. 7, the manual operation button 33 and the manual operation shaft 34 are lowered, and the lock shaft 38 of the thrust lock mechanism 37 is moved. Press down. At this time, the inner wire 5 slides inside the outer tube 4 toward the valve element 9 by the lock shaft 38, and the valve element 9 is raised. Then, the up state of the valve body 9 and the down states of the manual operation button 33, the manual operation shaft 34, and the lock shaft 38 are maintained by the engagement of the rotating gear and the fixed gear of the thrust lock mechanism 37. Therefore, the user can determine the state of the valve body 9 also by looking at the manual operation button 33.
When the user again applies the pushing operation to the manual operation button 33, the holding state of the valve body 9 is released by depressing the lock shaft 38 again, and the valve body 9 is released by the weight of the valve body 9 and the return spring. Descend.
As described above, since the driven portion 35 is engaged with the back surface of the engaging portion 22, the operation transmitting portion 21 remains at the position shown in FIG. 3 when the manual operation portion 32 is operated. .

Next, the operation of the electric operation unit 15 will be described.
As shown in FIG. 8, when the electric operation button 16 is operated, the drive unit 18 operates based on the electric signal, and the output shaft 19 and the screw cylinder 20 into which the output shaft 19 is inserted rotate. At this time, the cam portion 28 disposed inside the operation transmitting portion 21 is screwed with the screw cylinder 20. However, since the operation transmitting portion 21 cannot be rotated by the guide portion (not shown), The rotation is converted into an advance / retreat operation of the operation transmitting unit 21. Accordingly, the operation transmitting unit 21 is lowered by the rotation of the screw cylinder 20, and the engagement unit 22 pushes down the driven unit 35, thereby pushing down the manual operation shaft 34, the manual operation button 33, and the lock shaft 38 of the thrust lock mechanism 37. . When the lock shaft 38 is pushed down, the inner wire 5 slides inside the outer tube 4 toward the valve element 9 to raise the valve element 9, and the thrust lock mechanism 37 causes the valve element 9 to be raised. Will be retained.
When the operation transmitting unit 21 is lowered to an appropriate position, the position information of the operation transmitting unit 21 is detected by the sensor 26. At this time, the base 17 rotates the driving unit 18 in the reverse direction at the same time as the detected upper side, and returns the operation transmitting unit 21 to the original position shown in FIG. On the other hand, since the thrust lock mechanism 37 holds the up state of the valve body 9 and the down state of the manual operation button 33, the manual operation shaft 34, and the lock shaft 38, the user can visually check the manual operation button 33. It is also possible to determine the state of the valve body 9.
When the user operates the electric operation button 16 again, the drive unit 18 rotates again, and the holding state of the valve body 9 is released by depressing the lock shaft 38, and the self-weight of the valve body 9 and the valve are returned by the return spring. The body 9 descends. Further, after the operation transmitting unit 21 is lowered to an appropriate position, the driving unit 18 is rotated backward to return to the original position.

  As described above, since the electric drive unit 18 has a structure in which the operation transmitting unit 21 returns to the original position shown in FIG. 3 each time the operation is performed, the operation of the electric operation unit 15 after the operation of the manual operation unit 32 is performed. Becomes possible.

  On the other hand, if the electric drive unit 18 stops operating with the operation transmitting unit 21 lowered as shown in FIG. The unit 35 interferes, and the driven unit 35 cannot be raised to a predetermined position, so that the operation of the manual operation unit 32 becomes impossible. In this case, the release mechanism can be operated by performing the following release operation, and the operation of the manual operation unit 32 can be performed again.

First, the manual operation button 33 is removed from the edge of the tank B from the state of FIG. At the time of removal, the suction cup can be sucked by the manual operation button 33 and removed from the manual operation shaft 34 by pulling it up, or it can be removed by inserting a stick or the like into the gap between the manual operation button 33 and the flange 11. It is possible.
Next, the gripping portion 36 of the manual operation shaft 34 disposed on the back side of the manual operation button 33, that is, inside the flange 11, is gripped, and the manual operation shaft 34 in the state of FIG. At this time, as shown in FIG. 9B, the driven portion 35 rotates together with the manual operation shaft 34, and when the driven portion 35 rotates to a position where the position of the notch 24 coincides with the driven portion 35, the engagement portion 22 The engagement of the driven portion 35 is released. More specifically, the notch 24 has a similar shape to the driven portion 35 in a plan view, and the driven portion 35 is formed smaller than the notch 24. Therefore, by rotating the manual operation shaft 34 and aligning the position of the notch 24 with the driven portion 35, the driven portion 35 can pass through the notch 24 as shown in FIGS. The engagement between the part 22 (the operation transmitting part 21) and the driven part 35 is released.
When the engagement between the operation transmitting section 21 and the driven section 35 is released as described above, the driven section 35 can pass through the notch 24, so that the manual operation section 32 and the electric operation section 15 are in a non-interference state. It becomes. Accordingly, the driven portion 35 can be raised to a predetermined position regardless of the position of the operation transmitting portion 21, and the user can perform the raising / lowering operation of the valve body 9 again by the manual operation portion 32. .
When the cause of the failure is eliminated, the operation transmitting unit 21 and the driven unit 35 are engaged by rotating the manual operation shaft 34 again, so that the electric operation unit 15 can be used as usual. .

  Further, when sand or dust or the like is caught between the male screw of the screw cylinder 20 and the female screw of the operation transmitting unit 21 or the sensor 26 is broken, the damage prevention mechanism is activated. I do.

  When the above-mentioned sand or dust is caught, the rotation of the screw cylinder 20 is not converted into the forward / backward movement of the operation transmission unit 21, and the operation transmission unit 21 attempts to rotate with the rotation of the screw cylinder 20. , So-called rotation occurs. At this time, since the rotation of the operation transmitting portion 21 is restricted by the guide portion (not shown), a stress is applied to the cam portion 28 in the rotation direction, and the cam portion 28 A stress is applied in a direction to shrink 30. When the stress exceeds the stress caused by the spring 30, the cam portion 28 presses the locking portion 29 toward the manual operation shaft 34, and the cam portion 28 idles as shown in FIG. Therefore, the rotation of the screw cylinder 20 is not transmitted to the support portion 23 of the operation transmitting portion 21 or the manual operation shaft 34, and it is possible to prevent the operation transmitting portion 21 from being damaged. When the biting of sand or dust is eliminated, the locking portion 29 comes into contact with the cam portion 28 again by the stress of the spring 30, and the operation transmitting portion 21 can move up and down along the guide portion. .

  When the sensor 26 has failed, even if the operation transmitting unit 21 rises or descends beyond a predetermined height, the output shaft 19 is not detected because the position information of the operation transmitting unit 21 cannot be detected. Continue to rotate in the same direction. When the operation transmitting unit 21 reaches the upper end or the lower end of the screw cylinder 20, it is impossible to further raise or lower the screw cylinder 20. The rotation is not converted into the forward / backward movement of the motion transmitting unit 21, and the motion transmitting unit 21 attempts to rotate. However, since the present invention is provided with the above-described damage prevention mechanism, it is possible to prevent damage to the members without rotation of the operation transmitting unit 21 due to idling of the cam unit 28.

  If the cam portion 28 keeps running idle due to biting of sand or dust or a failure of the sensor 26 and the like, and the driving portion 18 has been operating for a certain period of time longer than the time required for normal lifting operation, Senses the operation, determines that an abnormality has occurred, and forcibly stops the operation of the drive unit 18.

  In the above-described remote-operated drain plug device of the present invention, even if the electric operation unit 15 breaks down in a state where the operation transmitting unit 21 moves down and interferes with the operation of the driven unit 35, the operation transmitting unit is released by the release mechanism. It is possible to release the engagement between 21 and the driven portion 35. Therefore, in the remote-operated drain cock device having the first operation unit 14 and the second operation unit 31, even if the first operation unit 14 fails, the second operation unit is not disassembled without disassembling the operation unit. The operation unit 31 can be operated. Further, since the release mechanism is disposed behind the manual operation button 33 as an operation button, it is necessary to remove the apron portion of the tank body B and provide an inspection port when performing the release operation of the release mechanism. There is no.

  In the above-described first embodiment, the release mechanism is arranged on the back side of the operation button, and the release operation can be performed by removing the operation button. However, in the second embodiment shown in FIGS. Thus, the release operation may be possible by removing the valve body 9 instead of the operation button. In the embodiments described below, the bathtub B, the valve element 9, and the flange 11 are assigned the same reference numerals as those in the first embodiment, and description thereof is omitted.

  Hereinafter, a second embodiment of the present invention will be described.

  The drain plug 1 is substantially the same as the first embodiment, but a thrust lock mechanism 37 described later is fixed in place of the valve shaft 6 in the second embodiment.

  As shown in FIGS. 2 and 13 to 15, the operation unit 10 includes a first operation unit 14, a second operation unit 31, a release wire 3, a valve shaft 6, and a thrust lock mechanism 37. A part of the second operating part 31 is housed inside the casing 12 and is fixed to the edge of the tank body B by the flange 11, and a part of the first operating part 14 and the thrust The lock mechanism 37 is disposed on the back side (downward) of the valve body 9. The operation unit 10 includes a release mechanism that releases the engagement between the operation transmission unit 21 and the driven unit 35 described below.

  The first operation unit 14 is an electric operation unit 15 that performs a raising / lowering operation of the valve body 9 based on an electric signal, and includes an electric operation button 16, a driving unit 18, a screw cylinder 20, an operation transmitting unit 21, and a knob 24 In addition to being configured, the operation transmitting unit 21 includes a damage prevention mechanism.

The electric operation button 16 is an operation button for transmitting an electric signal to the drive unit 18, and is attached to a base 17 which is arranged outside a bathroom such as a dressing room and controls the operation of the drive unit 18 as shown in FIG. Has been.
The drive unit 18 is a motor that is driven based on an electric signal transmitted by operating the electric operation button 16, and is disposed in a drain 39 attached below the drain plug 1 as shown in FIG. , And a power source (not shown) via a cord, and a base 17. The base 17 controls the driving of the driving unit 18 and changes the rotation direction of the driving unit 18 based on the position information of the operation transmitting unit 21 detected by a sensor (not shown). When the unit 18 operates, control such as stopping the driving of the driving unit 18 is performed. The output shaft 19 of the drive unit 18 has a hexagonal prism shape, and is inserted into the end of the worm 40.
The worm 40 has a male screw formed on the outer periphery, and has a hole at one end having substantially the same shape as the outer diameter of the output shaft 19. The output shaft 19 is inserted into the worm 40 to rotate the drive unit 18. Communicate to The upper portion of the worm wheel 41 is integrally formed with a cylindrical screw tube 20 having a male screw formed on the outer periphery.
As shown in FIGS. 13 to 15, one end of the operation transmitting unit 21 is screwed to the screw tube 20, and the engaging unit 22 is formed at the other end via the support unit 23. The driven portion 35 is disposed on the upper portion of the engaging portion 22. The engaging portion 22 has a substantially oval-shaped notch 24 at the center, and is engaged with the driven portion 35 on the surface (upper surface) of the engaging portion 22. As shown in FIG. 13, when the drive unit 18 is not driven (when the first operation unit 14 is not operated), the engagement unit 22 is larger than the driven unit 35 when the valve body 9 is in the down state. It is arranged below and is arranged at a height position which does not interfere with the operation of the driven portion 35. The support portion 23 extends from the screw cylinder 20 toward the manual operation shaft 34. The operation transmitting unit 21 can be operated only in the vertical direction by a guide unit (not shown), and its position information is detected by a sensor.

The second operation unit 31 is a manual operation unit 32 that performs an operation of raising and lowering the valve element 9 based on a manual push operation, and includes a manual operation button 33 and a manual operation shaft 34.
The manual operation button 33 is a substantially circular operation button in a plan view, which is directly pushed by the user and moves up and down, and its upper surface is disposed at a position flush with the upper surface of the flange 11, and is placed in the bathroom. The surface is exposed. A manual operation shaft 34 is fitted on the back surface of the manual operation button 33.
The manual operation shaft 34 is attached to the back surface of the manual operation button 33, and the lower end is connected to the release wire 3.

  The release wire 3 includes an outer tube 4 and an inner wire 5 as in the first embodiment. The release wire 3 is connected to the manual operation unit 32, and is connected to the valve shaft 6 at the other end. The inner wire 5 inside is always urged toward the operation unit by a return spring arranged on the manual operation unit 32 side.

The valve shaft 6 is a cylindrical body composed of an outer cylinder and an inner cylinder. The outer cylinder is connected to the outer tube 4, the inner cylinder is connected to the inner wire 5, and the inner wire 5 passes through the outer tube 4. The inner cylinder is formed so as to be able to protrude from the outer cylinder by sliding. The inner cylinder of the valve shaft 6 has a driven portion 35.
The driven portion 35 is a flange portion formed on the valve shaft 6 and having a substantially elliptical shape in a plan view, and has a shape similar to the notch 24 formed on the operation transmitting portion 21. The driven portion 35 is disposed above the engaging portion 22 of the operation transmitting portion 21, and as shown in FIG. 18A, the position (direction) of the driven portion 35 is different from that of the notch 24. In the state shown in FIG. 18B, when the position of the notch 24 coincides with the position of the driven portion 35 due to the rotation of the driven portion 35 as shown in FIG. It is possible to pass through the notch 24.

  The thrust lock mechanism 37 includes a rotating gear and a fixed gear inside, and a lock shaft 38 penetrates vertically, and the lock shaft 38 is pushed upward by the valve shaft 6 from below to protrude upward and the valve is protruded upward. This is a mechanism that raises the body 9 and maintains the rising state of the valve body 9 by meshing the rotating gear and the fixed gear. When the lock shaft 38 is pushed again, the engagement between the rotating gear and the fixed gear is released, and the holding of the valve body 9 in the raised state is released. Therefore, the thrust lock mechanism 37 can switch between the up state and the down state of the valve element 9 each time the lock shaft 38 is pushed.

  The release mechanism is composed of a manual operation shaft 34 and the engaging portion 22, and the engagement between the operation transmitting portion 21 and the driven portion 35 is released by removing the valve body 9 and applying a rotating operation to the driven portion 35. can do.

  Hereinafter, the operation of the remotely operated drain plug device of the present invention will be described.

First, the operation of the manual operation unit 32 will be described.
When the push operation is applied to the manual operation button 33 from the state shown in FIG. 13, the inner wire 5 slides inside the outer tube 4 toward the valve body 9 and pushes up the inner cylinder of the valve shaft 6. At this time, as shown in FIG. 16, the lock shaft 38 of the thrust lock mechanism 37 is pushed up by the inner cylinder of the valve shaft 6, and the valve body 9 is raised. The raised state of the valve body 9 and the raised state of the lock shaft 38 are maintained by the engagement of the rotating gear and the fixed gear of the thrust lock mechanism 37, but the manual operation button 33 and the manual operation shaft 34 are returned by a return spring as shown in FIG. Return to the original position shown in.
When the user again applies the pushing operation to the manual operation button 33, the holding state of the valve body 9 is released by pushing up the lock shaft 38 again, and the valve body 9 is lowered by the weight of the valve body 9 or the like. .
As described above, since the driven portion 35 is engaged with the surface (upper surface) of the engagement portion 22, the operation transmitting portion 21 remains at the position shown in FIG. Has become.

Next, the operation of the electric operation unit 15 will be described.
As shown in FIG. 17, when the electric operation button 16 is operated, the drive unit 18 operates based on the electric signal, and the output shaft 19, the worm 40, the worm wheel 41 into which the output shaft 19 is inserted, and the screw cylinder 20 rotates. At this time, the rotation of the screw cylinder 20 is converted into an advancing / retracting operation of the operation transmission unit 21 because the operation transmission unit 21 is not rotatable by the guide unit (not shown). Therefore, the operation transmitting section 21 is raised by the rotation of the screw cylinder 20, and the engaging section 22 pushes up the driven section 35 to push up the valve shaft 6 and the lock shaft 38 of the thrust lock mechanism 37. Then, the lock shaft 38 pushes up and raises the valve element 9, and the thrust lock mechanism 37 holds the valve element 9 in the raised state.
When the operation transmitting unit 21 is moved up to an appropriate position, the position information of the operation transmitting unit 21 is detected by the sensor. At this time, the base 17 rotates the driving unit 18 in the reverse direction based on the detected information, and returns the operation transmitting unit 21 to the original position shown in FIG. On the other hand, the raised state of the lock shaft 38 and the valve body 9 is maintained by the thrust lock mechanism 37.
When the user operates the electric operation button 16 again, the drive unit 18 rotates again, the lock shaft 38 is pushed up again, and the holding state of the valve body 9 is released, and the valve body 9 is released due to its own weight or the like. 9 falls. Further, after the operation transmitting section 21 has been appropriately raised to the position, the driving section 18 is rotated backward to return to the original position.

  As described above, since the electric drive unit 18 has a structure in which the operation transmitting unit 21 returns to the original position shown in FIG. 13 every time the operation is performed, the operation of the electric operation unit 15 after the operation of the manual operation unit 32 is performed. Becomes possible.

  On the other hand, if the electric drive unit 18 stops operating with the operation transmitting unit 21 raised as shown in FIG. 17 due to the bite of sand or dust or the failure of the sensor, the engagement unit 22 and the driven unit 35 interferes with each other, so that the driven portion 35 cannot be lowered to a predetermined position, and the operation of the manual operation portion 32 becomes impossible. In this case, the release mechanism can be operated by performing the following release operation, and the operation of the manual operation unit 32 can be performed again.

First, the valve body 9 is removed from the lock shaft 38.
Next, the driven part 35 disposed on the back side of the valve body 9, that is, inside the drainage device 39 is directly grasped, and the valve shaft 6 in the state of FIG. At this time, as shown in FIG. 18 (b), when the judo portion 35 rotates together with the valve shaft 6 and rotates to a position where the position of the driven portion 35 and the notch 24 match, the judo portion 35 is driven by the engagement portion 22. The engagement of the portion 35 is released. More specifically, the notch 24 has a similar shape to the driven portion 35 in a plan view, and the driven portion 35 is formed smaller than the notch 24. Therefore, by rotating the driven portion 35 (the valve shaft 6) and aligning the position of the notch 24 with the driven portion 35, the driven portion 35 can pass through the notch 24 as shown in FIGS. The engagement between the engaging portion 22 (the operation transmitting portion 21) and the driven portion 35 is released.
When the engagement between the operation transmitting unit 21 and the driven unit 35 is released as described above, the manual operation unit 32 and the electric operation unit 15 are in a non-interference state. Therefore, the driven portion 35 can be lowered to a predetermined position regardless of the position of the operation transmitting portion 21. After performing this work, by fitting the valve body 9 to the lock shaft 38, the user can perform the lifting operation of the valve body 9 again by the manual operation unit 32.
When the cause of the failure is eliminated, the operation transmitting unit 21 and the driven unit are engaged by rotating the manual operation shaft 34 again, so that the electric operation unit 15 can be used as usual.

  Although the embodiment of the present invention is as described above, the present invention is not limited to the shape of each of the above embodiments, and the present invention is not limited to the shape of each of the above embodiments, and departs from the gist of the invention. Various changes can be made within a range not to be performed. For example, in the first embodiment, the rotation of the manual operation shaft 34 is applied to release the engagement between the operation transmission unit 21 and the engagement unit 22. However, the engagement is released by the push-pull operation. You may. Alternatively, after the manual operation button 33 is removed, a release operation may be performed by inserting a jig or the like into the flange 11. Further, the manual operation button 33 may be arranged not only on the edge of the tank B, but also on the side surface or the wall in the bathroom.

  In the first embodiment, the operation button is the manual operation button 33. However, the electric operation button 16 can be removed as an operation button, and a release mechanism may be disposed behind the electric operation button 16. good.

  Alternatively, a remote-operated drainage plug that directly raises and lowers the valve body 9 by directly pushing the valve body 9 may be used. In this case, the valve body 9 also functions as an operation button. By removing, the release mechanism arranged on the back side of the valve body 9 may be operable.

  In the first embodiment of the present invention, since the manual operation button 33 is detachable, drainage easily flows into the casing 12 from the flange 11 when the manual operation button 33 is removed. If the drainage enters the thrust lock mechanism 37, the rotation gear and the like may not operate normally due to surface tension. Therefore, it is preferable to provide a structure that inhibits drainage flowing into the thrust lock mechanism 37 by providing an umbrella portion 42 at the lower end of the shaft, as in the manual operation shaft 34 shown in FIG. 21. Note that an umbrella portion 42 may be provided on the lock shaft 38 instead of the manual operation shaft 34.

DESCRIPTION OF SYMBOLS 1 Drain plug 2 Wire receiver 3 Release wire 4 Outer tube 5 Inner wire 6 Valve shaft 9 Valve element 10 Operation part 11 Flange 12 Casing 14 First operation part 15 Electric operation part 16 Electric operation button (operation button)
17 base 18 drive unit 19 output shaft 20 screw cylinder 21 operation transmission unit 22 engagement unit 23 support unit 24 notch 26 sensor 28 cam unit 29 locking unit 30 spring 31 second operation unit 32 manual operation unit 33 manual operation button (Manual operation button)
34 manual operation shaft 35 driven portion 36 gripping portion 37 thrust lock mechanism 38 lock shaft 39 drainer 40 worm 41 worm wheel 42 umbrella portion B tank body

Claims (3)

A drain port provided at the bottom of the tank body,
A valve body that opens and closes the drain port by raising and lowering motion,
In a remote-operated drainage plug device comprising an operation unit for performing a lifting operation of a valve body,
The operation unit includes a first operation unit, a second operation unit, and a release mechanism,
The first operation unit includes:
An operation transmission unit that transmits the operation of the first operation unit to the second operation unit,
The second operation unit,
Operation buttons,
A driven unit engaged with the operation transmitting unit and interlocked with the operation of the first operation unit,
The release mechanism can release the engagement between the operation transmitting unit and the driven unit based on an arbitrary operation, and can perform the release operation by removing the valve body or the operation button.
A remote-operated drainage plug device, wherein the release mechanism is disposed behind the removed valve element or the operation button. The second operation unit includes a manual operation shaft attached to the operation button back surface,
2. The remote-operated drainage plug device according to claim 1 , wherein the release mechanism can release the engagement between the operation transmitting unit and the driven unit by rotating a manually operated shaft. 3. The motion transmitting section has a notch through which the manual operation shaft passes,
3. The engagement mechanism according to claim 2, wherein the release mechanism can release the engagement between the operation transmitting unit and the driven unit by rotating the manual operation shaft and aligning the position of the notch with the driven unit. Remotely operated drain plug device.

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