JP6936424B2 - Remote-controlled drain plug device - Google Patents

Description

The present invention relates to a remote-controlled drain plug device for remotely operating a valve body that opens and closes a drain port formed on the bottom surface of a tank body such as a wash bowl, a sink, and a bathtub.

The remote-controlled drain plug device described in Patent Document 1 includes a valve body that opens and closes a drain port by vertical movement, an operation unit that operates based on manual operation, and a release wire that transmits the operation of the operation unit to the valve body side. Consists of.
A water-stopping packing is fitted around the valve body, and when the valve body descends, the drain port is closed so that hot water, etc. can be stored in the tank, and when the valve body rises, the drain port is closed. Can be opened and drainage can be discharged to the drainage channel on the downstream side. Further, the valve body is provided with a cylindrical support shaft portion vertically hung from the center thereof.
The release wire is composed of a hollow outer tube and an inner wire that can advance and retreat in the outer tube, and has a function as a transmission unit that transmits the operation applied to the operation unit by the advancement and retreat to the valve body side. Further, the release wire is provided with an elevating member at the end. The elevating member rotates as the inner wire advances and retreats, and the tip portion abuts on the lower end of the support shaft portion to move the valve body up and down.
When the user performs an operation on the operation unit while the valve body is in the lowered state of the remote-controlled drain plug device, the inner wire retracts to the operation unit side based on the operation. Then, the elevating member rotates with the retreat so that the tip portion abuts on the support shaft portion, and the valve body is pushed up to open the drain port. When the user further operates the operation unit from this state, the inner wire advances toward the valve body side. Then, the tip portion is lowered by rotating the elevating member with the advancement, and the valve body is lowered by its own weight to close the drain port.

Japanese Unexamined Patent Publication No. 2000-160620

Since the elevating member of the remote-controlled drain plug device comes into contact with the support shaft portion, it projects from the side of the drain pipe toward the center. Therefore, the elevating member is liable to get entangled with hair in the drainage and is very liable to get dirty. Further, since the elevating member protrudes toward the center of the drainage pipe, the protruding part is easily visible to the user, but the elevating member is located considerably below the drainage port for cleaning. There is a problem that it is difficult for the user to perform the cleaning while visually recognizing the dirt on the elevating member. Even if the elevating member is arranged at a height that can be cleaned, it is very difficult to perform cleaning due to its shape.
The present invention has been invented in view of the above problems, and an object of the present invention is to improve the cleanability of a remote-controlled drain plug device.

The present invention according to claim 1 comprises a drain plug forming a drain port on the bottom surface of the tank body and a drain plug.
A valve body that opens and closes the drainage port and
An operation unit that is located away from the drain plug and operates the valve body,
It consists of an elevating part that slides horizontally and along the inner peripheral surface of the drainage pipe to move the valve body up and down as the operation part is operated.
The elevating part or valve body has an inclined surface,
When the elevating part comes into contact with the valve body, the stress applied from the contact part by the inclined surface is converted into the stress that moves the valve body up and down.
The elevating part
It is a remote-controlled drain plug device that slides in the tangential direction of the drain pipe so that a part of it protrudes from the inner peripheral surface of the drain pipe toward the inside of the drain pipe. ..

The "horizontal direction" includes a direction having a horizontal component such as an oblique direction.

The present invention according to claim 2 is the remote-controlled drain plug device according to claim 1, wherein the outer edge of the valve body is supported by the elevating portion.

The remote operation according to claim 1 or 2 , wherein the elevating portion has a smaller protrusion width to the inner peripheral surface of the drainage pipe than the radius of the drainage pipe. It is a type drain plug device.

The present invention is defined in claim 4, wherein the lifting unit, in a plan view, any one of claims 1 to 3, characterized in that projecting from the two places or more locations of the inner peripheral surface of the drain pipe 1 The remote-controlled drain plug device according to the above.

According to the first aspect of the present invention, unlike the conventional remote-controlled drain plug device, there is no member in which a part of the device projects toward the center of the drain pipe. Therefore, the elevating portion protruding along the inner peripheral surface of the drainage pipe is only visible to the user, and is excellent in design and cleanability.
In addition, it is possible to clarify how the elevating part moves the valve body up and down, prevent the device from becoming complicated, and enable the device to operate stably.
According to the second aspect of the present invention, since the elevating part supports the outer edge of the valve body, it is not necessary for the elevating part to project toward the center of the drainage pipe. The "outer edge" includes the outer circumference and the lower end of the valve body.
According to the third aspect of the present invention, since the elevating part does not protrude to the center of the drainage pipe, it is possible to improve the design and the cleanability.
According to the fourth aspect of the present invention, the valve body can be stably moved up and down.

It is sectional drawing which shows the construction state of this invention. It is a reference figure which shows the construction state of this invention. It is a cross-sectional view of AA'of (a) side sectional view (b) (a) which shows the drainage pipe joint. It is sectional drawing which shows the valve body. It is (a) plan view (b) side view which shows the driven part. It is sectional drawing which shows the descending state of a valve body. FIG. 6 is a cross-sectional view taken along the line AA'in FIG. It is sectional drawing which shows the raised state of a valve body. FIG. 8 is a cross-sectional view taken along the line AA'in FIG. It is sectional drawing which shows the descending state of the valve body in 2nd Embodiment. It is sectional drawing which shows the raised state of the valve body in 2nd Embodiment. It is sectional drawing which shows the 3rd Embodiment. It is sectional drawing which shows the valve body which concerns on 3rd Embodiment. It is (a) plan view (b) side view which shows the driven part which concerns on 4th Embodiment.

Hereinafter, the remote-controlled drain plug device of the present invention will be described with reference to the drawings. It should be noted that the description described below is for facilitating the understanding of the embodiment, and the invention is not limited and understood by this. Further, in the following embodiments, unless otherwise specified, the positional relationship between the members up, down, left and right and between the members will be described with reference to the construction state shown in FIG.

As shown in FIGS. 1 and 2, the remote-operated drain plug device according to the present embodiment is attached to the tank body B, and has a drain plug 1, a drain pipe joint 3, a drain trap 5, a valve body 6, and an operation unit 7. , A transmission unit 8 and a driven unit 9.

The tank body B is a box-shaped wash basin with an opening at the top, and is placed on a cabinet (not shown). Further, the tank body B has openings on its bottom surface and side surfaces, and a drain plug 1 is attached to the opening formed on the bottom surface, and an overflow drain plug 2 is attached to the opening formed on the side surface.

The drain plug 1 is a hollow cylindrical member that forms a drainage flow path inside and opens the upstream end and the downstream end, and has a male screw engraved on the outer circumference toward the outside from the upper end. The collar is formed. The opening at the upper end of the drain plug 1 functions as a drain port 11, and constitutes an inflow portion where drainage from the tank body B flows into the drain flow path after the drain plug 1. Further, the outer diameter of the collar portion is larger than the opening formed on the bottom surface of the tank body B, and the tubular portion is formed to have a smaller diameter than the opening formed on the bottom surface of the tank body B. Therefore, the drain plug 1 inserted into the opening formed in the bottom surface of the tank body B is screwed into the nut from the back side (lower side) of the tank body B via the packing, and the collar portion and the nut form the tank body B. It sandwiches the periphery of the opening formed on the bottom surface of the. Further, a tapered portion is formed on the inner circumference of the lower end of the drain plug 1, and the upper end of the drain pipe joint 3 is inserted.

Like the drain plug 1, the overflow drain plug 2 is a hollow cylindrical member that forms a drain flow path inside and opens the upstream end and the downstream end, and a male screw is screwed on the outer periphery. The collar is formed from the upper end to the outside. The overflow drain plug 2 is connected to a flexible bellows pipe 21 at the downstream end, and an overflow flow path continuous from the overflow drain plug 2 via the bellows pipe 21 is connected to a branch pipe portion of the drain trap 5. It is continuous to 52. With the above configuration, when hot water is stored inside the tank body B up to a certain level (lower end of the overflow drain plug 2), the overflow flow path discharges excess hot water, and the hot water overflows from the tank body B. It has a function to prevent it.

The drainage pipe joint 3 is a straight tubular joint member that connects the drainage plug 1 and the drainage trap 5 described later, and the upper end thereof is inserted into the lower end of the drainage plug 1 and connected by a nut, and the lower end thereof is C-shaped. It is connected to the drain trap 5 by a ring 4. Further, the drainage pipe joint 3 forms a rectangular storage portion 32 whose diameter is expanded in the horizontal direction in the intermediate portion, and the horizontal pipe portion 31 extends from the side surface of the storage portion 32. The transmission unit 8 is inserted, and the elevating portion 91 of the transmission unit 8 is housed in the storage unit 32.
The horizontal pipe portion 31 has a rectangular shape whose diameter is expanded in the horizontal direction, and is connected to the horizontal pipe portion joint 33 by a C-shaped ring 4. The horizontal pipe portion joint 33 has a rectangular portion for holding the driven portion 9 and a cylindrical portion on which the transmission portion 8 slides. The horizontal pipe portion 33 is in watertight contact with the packing fitted to the transmission portion 8 on the inner peripheral surface of the cylindrical portion.
A tapered portion corresponding to the tapered portion at the lower end of the drain plug 1 is formed at the upper end of the drain pipe joint 3, and when connected to the drain plug 1, the central axes of the drain plug 1 and the drain pipe joint 3 match. do.

The drain trap 5 is formed by connecting two pipes bent in a substantially U-shape in cross section and bending the drainage flow path in a substantially S shape, and forming a storage portion 51 capable of storing drainage inside. doing. The drainage stored in the storage section 51 is called water sealing, and by filling a part of the drainage channel with water, it has an effect of preventing odors and backflow of pests from the downstream side. Further, the drain trap 5 has a branch pipe portion 52 extending diagonally upward in the drainage flow path that continuously hangs from the drain pipe joint 3. A bellows pipe 21 is connected to the branch pipe portion 52, and an overflow flow path continuous from the overflow drain plug 2 is formed.

As shown in FIG. 4, the valve body 6 has a circular valve lid 61 in a plan view, an upper eye plate 62 and a lower eye plate 63 for collecting dust such as hair, and a lower eye plate 63 from the center of the back surface of the valve lid 61. It is provided with a rod-shaped support shaft portion 64 suspended up to.
A packing is fitted on the outer periphery of the valve lid 61, and when the valve body 6 is in the lowered state, the valve lid 61 comes into contact with the drain plug 1 to close the drain port 11.
Both the upper eye plate 62 and the lower eye plate 63 have a circular shape in a plan view provided with a mesh-like collecting portion, and the upper eye plate 62 has an outer diameter substantially the same as the inner diameter of the drain plug 1, and the lower eye plate 62 has an outer diameter substantially the same as the inner diameter of the drain plug 1. The plate 63 has an outer diameter substantially the same as the inner diameter of the inner cylinder portion 12. Further, on the lower surface of the lower perforated plate 63, an inclined surface 65 inclined by about 45 degrees toward the driven portion 9 described later is vertically provided.
The valve body 6 is housed inside the drain pipe from the drain port 11. At this time, the valve body 6 is allowed to move only up and down due to a detent structure (not shown), and is arranged non-rotatably inside the drain pipe. .. Further, the valve body 6 is arranged so that the inclined surface 65 always faces the lateral pipe portion 31 side by the detent structure.

The operation unit 7 is located on the top surface of the tank body B at a position away from the drain plug 1, and includes a lever 71 for the user to directly perform a push-pull operation. Further, the operation unit 7 is connected to the transmission unit 8 at the lower end.

The transmission portion 8 has a release wire 81 having flexibility in the side surface direction and rigidity in the axial direction, and a cylindrical water stop portion 84 provided at the end of the release wire 81, and the water stop portion 84 has a water stop portion 84. Is attached with a driven portion 9.
The release wire 81 is composed of an outer tube 82 and an inner wire 83. The outer tube 82 is a hollow tube body made of synthetic resin, and an inner wire 83 is arranged inside the outer tube 82 so as to be able to advance and retreat. The inner wire 83 is a stranded metal wire, one end of which is connected to the lever 71 of the operation portion 7, and the other end of which is connected to the belt portion 84.
The water stop portion 84 is slidably arranged in the cylindrical portion of the horizontal pipe portion joint 33, and the release wire 81 is attached to one end and the driven portion 9 is attached to the other end. Further, the water stop portion 84 is fitted with a packing around the water stop portion 84, and is in close contact with the horizontal pipe portion joint 33 in a watertight manner.

As shown in FIG. 5, the driven portion 9 is a substantially U-shaped member having two elevating portions 91 attached to the end portion of the transmitting portion 8, and is a storage portion 32 of the drainage pipe joint 3. It is arranged so that it can move forward and backward in the horizontal direction. The elevating portion 91 has a height of about 15 mm, and is composed of an inclined surface 92 and a mounting portion 93. The inclined surface 92 is formed so as to be inclined by about 45 degrees at the end portion of the driven portion 9, and is continuous with the mounting portion 93 formed of a horizontal plane at the upper end portion thereof. Further, the distance between the outer surfaces of the two elevating portions 91 is larger than the inner diameter of the drainage pipe (drainage pipe joint 3), but the distance between the inner side surfaces is smaller than the inner diameter of the drainage pipe (drainage pipe joint 3).
The driven unit 9 advances and retreats horizontally in the storage unit 32 in accordance with the operation of the operation unit 7, and when the driven unit 9 advances and retreats, as shown in FIGS. 6 to 9, the elevating unit 91 moves in the tangential direction of the drain pipe in a plan view. Sliding on. Then, as shown in FIGS. 6 and 7, when the elevating part 91 is retracted to the operation part 7 side and the valve body 6 is in the lowered state, the elevating part 91 is not exposed in the drainage pipe at all in a plan view. .. On the other hand, as shown in FIGS. 8 and 9, when the driven portion 9 is arranged at a position where the valve body 6 is raised, a part of the elevating portion 91 (mounting portion 93) at a position opposite to that in the plan view. ) Protrudes along the inner peripheral surface of the drainage pipe. Since two elevating portions 91 are provided, when the driven portion 9 is arranged at the positions shown in FIGS. 8 and 9, the two mounting portions 93 protrude from the opposite positions of the drainage pipe. .. At this time, it projects horizontally along the inner peripheral surface of the drainage pipe. The protruding width is 5 mm or less, preferably about 1 mm to 2 mm, which is smaller than the radius R of the drainage pipe. Note that FIG. 7 is a reference view in which the drainage pipe in the state of FIG. 6 is cut at AA', and in order to show the protruding state of the elevating part 91, the description of the valve body 6 and the like is omitted and exposed. The elevating portion 91 of the missing portion is represented by a broken line. Similarly, FIG. 9 is a reference diagram in which the drainage pipe in the state of FIG. 8 is cut at AA'.

The remote-controlled drain plug device composed of the above members is constructed as follows. In the construction procedure described below, the construction related to the drainage pipe on the downstream side of the drainage trap 5 is omitted. The construction procedure described below is just an example.

First, the drain plug 1 is attached to the opening formed on the bottom surface of the tank body B, the overflow drain plug 2 is attached to the opening formed on the side surface, and the operation unit 7 is attached to the top surface of the tank body B. At this time, since each member is attached via the packing, all the hot water generated in the tank body B is discharged through the drain plug 1 or the overflow drain plug 2.
Next, the transmission portion 8 and the driven portion 9 are inserted from the horizontal pipe portion 31, and the horizontal pipe portion 31 and the horizontal pipe portion joint 33 are connected by the C-shaped ring 4. At this time, the driven portion 9 is slidably arranged in the storage portion 32 of the drainage pipe joint 3, and the elevating portion 91 is slidable in the tangential direction of the drainage pipe. Further, the water stop portion 84 of the transmission portion 8 is arranged in the cylindrical portion of the horizontal pipe portion joint 33, and the packing fitted to the water stop portion 84 comes into contact with the inner peripheral surface of the horizontal pipe portion joint 33 to be in a watertight state. Become.
Next, the drain plug 1 and the drain pipe joint 3 are connected by a nut. At this time, the upper end of the drain pipe joint 3 is inserted into the lower end of the drain plug 1, and the tapered portion of the upper end of the drain pipe joint 3 and the tapered portion of the lower end of the drain plug 1 come into contact with each other, so that the central axes of the drain pipe joint 3 and the drain plug 1 are brought into contact with each other. Match.
Finally, the drain trap 5 and the drain pipe joint 3 are connected using the C-shaped ring 4, the bellows pipe 21 is connected to the branch pipe portion 52 of the drain trap 5, and the valve body 6 is inserted from the drain port 11. This completes the construction. At this time, the valve body 6 is arranged so that only vertical movement is allowed by the detent structure and the inclined surface 65 faces the lateral pipe portion 31 side.

The remote-controlled drain plug device of the present embodiment constructed by the above procedure operates as follows.

As shown in FIGS. 6 and 7, when the valve body 6 is in the lowered state, the lever 71 is in the pulled-up state, and the driven portion 9 is retracted to the operating portion 7 side. At this time, as shown in FIG. 7, the elevating part 91 is arranged outside the inner peripheral surface of the drainage pipe, and the elevating part 91 does not project into the drainage pipe in a plan view. Therefore, the valve body 6 is not supported by the elevating portion 91 and is lowered by its own weight.
When the user pushes the operation unit 7 (lever 71) from the lowered state of the valve body 6, the inner wire 83 connected to the lower end of the lever 71 moves inside the outer tube 82 toward the valve body 6. It advances, and based on the advance, the driven portion 9 connected to the inner wire 83 slides to the left in FIG. At this time, the elevating part 91 slides in the horizontal direction and the tangential direction of the drainage pipe, and a part of the elevating part 91 protrudes along the inner peripheral surface of the drainage pipe due to the sliding, and elevates and elevates to the inclined surface 65 of the valve body 6. The inclined surface 92 of the portion 91 comes into contact with each other. By the contact, the horizontal stress applied from the driven portion 9 is converted into the vertical stress, and the upward stress is applied to the valve body 6. Then, when the valve body 6 rises due to the application of the upward stress, the outer edge of the valve body 6 is supported by the mounting portion 93 formed at the upper end of the inclined surface 92. Therefore, as shown in FIGS. 8 and 9, the valve body 6 rises along the inclined surface 92 to open the drain port 11, and the outer edge of the valve body 6 is supported by the mounting portion 93 to support the valve body 6. The rising state of is maintained.

Next, when the user pulls up the operation unit 7 (lever 71) from the raised state of the valve body 6, the inner wire 83 connected to the lower end of the lever 71 moves inside the outer tube 82 toward the operation unit 7. Based on the retreat, the driven portion 9 connected to the inner wire 83 slides to the right in FIG. At this time, all the elevating parts 91 are arranged outside the drainage pipe in a plan view, the valve body 6 is lowered by its own weight, and the drainage port 11 is closed.

The flow of hot water (drainage) to the remote-controlled drain plug device is as follows.

When the valve body 6 is raised, the packing of the valve body 6 is separated from the drain plug 1, and the drain port 11 is opened. Therefore, the hot water discharged into the tank body B flows into the drainage pipe from the drainage port 11, and is further discharged to the drainage pipe on the sewage side through the drainage plug 1, the drainage pipe joint 3, and the drainage trap 5. At this time, a part of the drainage that has flowed in from the tank body B is stored in the storage section 51 of the drain trap 5 to form a sealing water.
On the other hand, when the valve body 6 is lowered, the packing of the valve body 6 is in contact with the drain plug 1, and the drain port 11 is closed. Therefore, in this state, hot water can be stored inside the tank body B, but when the hot water is stored up to the lower end of the overflow drain plug 2, the hot water to be further stored flows into the overflow drain plug 2. It is discharged into the drain trap 5 through the bellows pipe 21.

The first embodiment of the present invention is as described above. In the first embodiment, when the valve body 6 is in the lowered state, the elevating portion 91 is arranged outside the inner peripheral surface of the drainage pipe. In a plan view, the elevating part 91 does not project into the drainage pipe. Therefore, when the valve body 6 is in the lowered state, the inner surface of the drainage pipe is smooth in a plan view, and cleaning is easy and the design is good.
On the other hand, when the valve body 6 is raised in the first embodiment, the elevating part 91 slides in the horizontal direction of the drainage pipe and in the tangential direction of the drainage pipe, so that a part of the elevating part 91 (mounting). The portion 93) protrudes along the inner peripheral surface of the drainage pipe, and the outer edge of the valve body 6 is supported by the protruding portion. However, even in the raised state of the valve body 6, the protruding width of the elevating portion 91 is smaller than the radius of the drainage pipe, so even if the valve body 6 is removed from the raised state, it is similar to the conventional remote-controlled drain plug device. In addition, a part of the device does not protrude toward the center of the drainage pipe. Therefore, only a part of the elevating portion 91 protruding along the inner peripheral surface of the drainage pipe can be visually recognized by the user, and the design is good. In addition, unlike the conventional remote-controlled drain plug device, there is no member protruding toward the center of the drain pipe, so that the device does not get entangled with hair or the like, and the user can clean the visible part. Can be easily performed.

The second embodiment of the present invention will be described below with reference to FIGS. 10 and 11. In the following embodiments, unless otherwise specified, the same numbers are assigned to the same configurations as those in the first embodiment, and the description thereof will be omitted.

In the remote-controlled drain plug device according to the second embodiment of the present invention shown in FIGS. 10 and 11, the valve body 6 is non-rotatably arranged in the drain pipe and coincides with the elevating portion 91 at the lower end. It has an inclined surface 65 of a shape.
The driven portion 9 is a ring-shaped member, and an elevating portion 91 is formed above the ring-shaped member. Further, the driven portion 9 has substantially the same outer diameter as the inner circumference of the drainage pipe joint 3, and can rotate in the drainage pipe as the operation portion 7 is operated. The elevating portion 91 is composed of an inclined surface 92 and a mounting portion 93. The inclined surface 92 is formed so as to be inclined by about 45 degrees at the end portion of the driven portion 9, and is continuous with the mounting portion 93 formed of a horizontal plane at the upper end portion thereof.

In the remote-controlled drain plug device according to the second embodiment, when an operation is applied to the operation unit 7, the driven unit 9 rotates in the horizontal direction as the inner wire 83 moves forward / backward, and the inner peripheral surface of the drain pipe Slide along. At this time, the elevating part 91 also rotates in the horizontal direction and slides along the inner peripheral surface of the drainage pipe, so that the inclined surface 65 of the valve body 6 and the inclined surface 92 of the elevating part 91 come into contact with each other. As described above, since the valve body 6 is configured to be non-rotatable, the horizontal stress applied from the driven portion 9 is converted into the vertical stress by the contact, and the valve body 6 is subjected to the stress in the vertical direction. And upward stress is applied. Then, when the valve body 6 rises due to the application of the upward stress, the outer edge of the valve body 6 is supported by the mounting portion 93 formed at the upper end of the inclined surface 65.

In the second embodiment, the elevating part 91 always protrudes inside the drainage pipe in a plan view, but the elevating part 91 protrudes along the inner peripheral surface of the drainage pipe, and is the same as the first embodiment. In addition, the protruding width of the elevating part 91 is smaller than the radius of the drainage pipe. Therefore, when the valve body 6 is removed at the time of cleaning, the user can only see the elevating part 91 protruding along the inner peripheral surface of the drainage pipe, which is similar to the conventional remote-controlled drainage plug device. In addition, a part of the device does not protrude toward the center of the drainage pipe, and the design is very good.

The present invention is not limited to the shapes of the first and second embodiments, and various shape changes and the like may be made without departing from the gist of the invention.
For example, in the second embodiment, the driven portion 9 is arranged inside the drainage pipe joint 3, but a part thereof is arranged outside the drainage pipe joint 3, and a part thereof protrudes inward. It may be.

Further, in each embodiment, the elevating portion 91 was in direct contact with the valve body 6, but as in the third embodiment shown in FIGS. 12 and 13, the elevating portion 91 is in the horizontal direction and the inner peripheral surface of the drainage pipe. The elevating portion 91 may indirectly come into contact with the valve body 6, such as when the valve body 6 is pushed up by the ring-shaped member by sliding along the ring-shaped member.

Further, in the first embodiment, the driven portion 9 is provided with two elevating portions 91, but the number of the driven portions 9 may be increased or decreased. For example, as in the fourth embodiment shown in FIG. 14, the number of elevating parts 91 may be one. In this case, since a force is applied so that the valve body 6 rotates, it is preferable that the valve body 6 has a detent structure as in the first embodiment. Further, the elevating portion 91 may be partially or wholly exposed regardless of the raised / lowered state of the valve body 6.
Since the construction state of the fourth embodiment is the same as that of FIG. 1 which is the construction state of the first embodiment, the description thereof will be omitted.

Further, in each embodiment, the elevating portion 91 slides horizontally, but in the present invention, the operating direction of the elevating portion 91 may be a direction including a horizontal component, such as sliding in an oblique direction. ..
Further, although the valve body 6 was lowered due to its own weight, the valve body 6 responded to the operation of the elevating part 91 by providing a spring at an appropriate position or engaging the elevating part 91 with the valve body 6. The structure may be such that a descending stress other than its own weight is applied to the body.
Further, in each embodiment, the valve body 6 is provided with an inclined surface 65 at the lower end, but the inclined surface 65 may be formed on the lower surface of the valve lid 61. At this time, the elevating portion 91 may be provided at a position below the flange portion of the drain plug 1.

1 Drain plug 11 Drain port 2 Overflow drain plug 21 Bellows pipe 3 Drain pipe joint 31 Horizontal pipe 32 Storage 33 Horizontal pipe joint 4 C-shaped ring 5 Drain trap 51 Storage 52 Branch pipe 6 Valve body 61 Valve lid 62 Upper plate 63 Lower plate 64 Support shaft 65 Inclined surface 7 Operation unit 71 Lever 8 Transmission unit 81 Release wire 82 Outer tube 83 Inner wire 84 Water stop 9 Driven unit 91 Lifting unit 92 Inclined surface 93 Mounting unit B tank body

Claims (4)

A drain plug that forms a drain on the bottom of the tank,
A valve body that opens and closes the drainage port and
An operation unit that is located away from the drain plug and operates the valve body,
It consists of an elevating part that slides horizontally and along the inner peripheral surface of the drainage pipe to move the valve body up and down as the operation part is operated.
The elevating part or valve body has an inclined surface,
When the elevating part comes into contact with the valve body, the stress applied from the contact part by the inclined surface is converted into the stress that moves the valve body up and down.
The elevating part
A remote-controlled drain plug device characterized in that by sliding in the tangential direction of the drain pipe, a part of the slide protrudes from the inner peripheral surface of the drain pipe toward the inside of the drain pipe. The remote-controlled drain plug device according to claim 1, wherein the outer edge of the valve body is supported by the elevating portion. The remote-controlled drain plug device according to claim 1 or 2 , wherein the elevating portion has a protrusion width to the inner peripheral surface of the drain pipe smaller than the radius of the drain pipe. The remote-controlled drain plug device according to any one of claims 1 to 3 , wherein the elevating portion projects from two or more locations on the inner peripheral surface of the drain pipe in a plan view. ..

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