JP7028399B2 - Drain plug device - Google Patents

Description

The present invention relates to a 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 washbasin, a sink, and a bathtub.

The drain plug device is a device that transmits the operation applied to the operation unit to the valve body via the transmission unit, and the valve body opens and closes the drain port.
In the conventional drain plug device, the transmission part has a lever-shaped elevating part at the end, and the elevating part is displaced due to the operation of the operating part, so that the valve body mounted on the elevating part rises or rises. Those with a descending structure are known. However, in the conventional drain plug device, when the valve body is removed, the elevating part is in a state of greatly protruding into the drain port. Therefore, it is unsanitary because the hair or the like in the drainage is accumulated on the protruding elevating part, and the accumulated hair or the like causes a malfunction. Further, since the protruding portion is visible to the user, the appearance is poor, and it is very difficult to clean the protruding portion.

Japanese Unexamined Patent Publication No. 2015-11556

In view of the above problems, it is an object of the present invention to provide a device having improved designability and cleanability while reducing protrusion of the elevating part into the drainage port, preventing hair and the like from accumulating on the drain plug device.

The present invention according to claim 1 includes a drainage pipe that forms a drainage flow path inside, and a drainage pipe.
A valve body that opens and closes the drainage port formed in the tank body,
An operation unit that raises and lowers the valve body, and
A transmission unit that transmits the operation applied to the operation unit to the drainage port side,
It is a drain plug device consisting of
The transmission portion includes an elevating portion that raises and lowers the valve body at one end.
The valve body is provided with a mounting portion whose outer end is formed along the inner peripheral surface of the drainage pipe and which is mounted on the elevating portion when the valve body is raised.
The elevating part advances from the inner wall of the drainage pipe toward the drainage flow path or moves backward toward the transmission part based on the operation of the operation part.
When the elevating part is retracted, the previously described placing part is placed on the elevating part to raise the valve body, and at the same time, the valve body is raised.
At least one of the elevating portion and the valve body has an inclined portion that inclines downward toward the transmitting portion.
In response to the operation of the elevating portion applied to the operating portion, the inclined portion provided on one of the elevating portion and the valve body slides in contact with the other, and the valve body slides due to the sliding action. It is a drain plug device characterized by raising and lowering.

In the present invention according to claim 2, the inclined portion is
The drain plug device according to claim 1, wherein the drain plug device is formed on the valve body.

In the present invention according to claim 3, the inclined portion has a
The drain plug device according to claim 1 or 2, wherein the drain plug device is formed in the elevating portion.

According to the fourth aspect of the present invention, the drainage flow path is provided with a reduced diameter portion on the upstream side of the elevating portion.
The drain plug device according to any one of claims 1 to 3, wherein at least a part of the elevating portion is covered with the reduced diameter portion.

The present invention according to claim 5 is a shock absorber in which the elevating part or the valve body prevents the stress from being transmitted to each member when an excessive stress is applied to the valve body. The drain plug device according to any one of claims 1 to 4, wherein the drain plug device is provided.

According to the sixth aspect of the present invention, in the state where the elevating part is most retracted, a part of the elevating part is arranged outside the drainage flow path, and the portion where the valve body is arranged is exposed in the drainage flow path. The drain plug device according to any one of claims 1 to 5, wherein the drain plug device is characterized.

According to the present invention, it is possible to make the inner surface of the drainage flow path substantially smooth in a state where the elevating part is most retracted, so that it is possible to improve the cleanability.

It is sectional drawing which shows the 1st Embodiment of this invention. FIG. 1 is a cross-sectional view showing a state in which the valve body is raised from FIG. 1. (A) An enlarged view showing the vicinity of the elevating part in FIG. 1 (b) is an enlarged view showing the vicinity of the elevating part in FIG. 2. It is sectional drawing which shows the 2nd Embodiment of this invention. FIG. 4 is a cross-sectional view showing a state in which the valve body is raised from FIG. It is sectional drawing which shows the 3rd Embodiment of this invention. FIG. 6 is a cross-sectional view showing a state in which the valve body is raised from FIG. It is sectional drawing which shows the 4th Embodiment of this invention. FIG. 8 is a cross-sectional view showing a state in which the valve body is raised from FIG. It is sectional drawing which shows the 5th Embodiment of this invention. FIG. 10 is a cross-sectional view showing a state in which the valve body is raised from FIG. It is sectional drawing which shows the 6th Embodiment of this invention. FIG. 12 is a cross-sectional view showing a state in which the valve body is raised from FIG. It is sectional drawing which shows the state which the stress was applied to the valve body from above from the state of FIG.

Hereinafter, the joint member of the present invention will be described with reference to the drawings. It should be noted that the description described below facilitates the understanding of the embodiments, and is not intended to limit and understand the present invention. Further, in order to facilitate the understanding of the invention, in explaining the first embodiment shown in FIGS. 1 to 3, the upper, lower, left and right sides will be described with reference to the state shown in FIG.

The present invention according to the first embodiment shown in FIGS. 1 to 3 is a drain plug device attached to a washbasin as a tank body B, and is a drainage pipe 1, an operation unit 8, a transmission unit 10, an elevating unit 12, and a valve body. It is composed of 15.

The tank body B is a box-shaped washbasin with an open upper part, and is placed on a cabinet (not shown). Further, the tank body B has openings formed on the bottom surface and the side surface, a drainage pipe 1 is attached to the opening formed on the bottom surface, and an overflow drain plug (not shown) is attached to the opening formed on the side surface. Is attached. Further, an operation unit 8 is attached to the edge portion of the tank body B.

The drainage pipe 1 is a pipe that forms a drainage flow path inside, and in this embodiment, it is composed of a drainage plug 2 and a lower pipe 5.
The drain plug 2 is hollow and cylindrical, and a male screw is formed on the outer circumference of the cylindrical body, and a flange 3 is formed from the outer circumference of the upper end to the outside, and a lower pipe is formed at the lower end. 5 is attached. The drain plug 2 is screwed into a nut arranged on the back side of the tank body B, and the flange portion 3 and the nut are watertightly attached to the tank body B by sandwiching the opening peripheral edge of the bottom surface of the tank body B via packing. Has been done. In the attached state, the upper end of the drainage flow path inside the drain plug 2 functions as a drain port 4, and hot water, hair, etc. discharged into the tank body B are discharged from the drain port 4. The drainage flow path formed inside the drain plug 1 has a diameter-reduced portion 26 that gradually reduces in diameter from the vicinity of the center to the lower end.
The lower pipe 5 is attached to the lower end of the drain plug 2 by a nut attached to the upper end, and a branch pipe portion 6 and an overflow flow path 7 are formed on the side. Further, the inner diameter of the upstream end is gradually reduced to be smaller than the inner diameter of the lower end of the drain plug 2, and has a reduced diameter portion 27 that further reduces the diameter of the drainage flow path continuous from the drain plug 1. The drainage flow path continuous from the upper end of the lower pipe 5 is eccentric at the height position where the branch pipe portion 6 and the overflow flow path 7 are formed. The branch pipe portion 6 is a tubular portion extending from the lower end of the reduced diameter portion 27 of the lower pipe 5 toward the left in FIG. 1, and a part of the transmission portion 10 and the elevating portion 12 are arranged inside. Has been done. Further, the end of the branch pipe portion 6 is closed by a nut. Further, the lower pipe 5 is connected to a drain trap (not shown) at the lower end thereof. The overflow flow path 7 is a drainage flow path continuous from the overflow drainage plug formed on the side surface of the tank body B, and the drainage flowing from the overflow drainage plug is merged with the drainage flow path in the lower pipe 5.
As described above, in the drainage pipe 1, the diameter of the drainage flow path is reduced from the vicinity of the center of the drainage plug 2 to the upper end of the branch pipe portion 6 of the lower pipe 5. As a result, as shown in FIG. 2, the elevating portion 12 in the state of being retracted to the transmission portion 10 side is covered with the drainage pipe 1 above the elevating portion 12 except for the end portion, and is blindfolded by the user. Further, by reducing the diameter of the drainage flow path, the stroke width required for raising and lowering the valve body 15 can be reduced.

The operation unit 8 has a rod-shaped grip portion 9 that is directly operated by the user, and the grip portion 9 can be moved up and down by pushing and pulling accompanying a manual operation. Further, the lower end of the grip portion 9 is connected to the transmission portion 10, and the displacement of the operation portion 8 is moved up and down the valve body 15 via the transmission portion 10.

The transmission unit 10 is composed of an outer tube which is a resin tube body and a release wire composed of an inner wire which is a stranded metal wire arranged in the outer tube, and the inner wire becomes an outer tube as the operation unit 8 is displaced. The operation applied to the operation unit 8 by sliding inside is transmitted to the valve body 15 side. Further, a tubular member 11 is attached to the transmission portion 10 at the end portion on the valve body 15 side. The outer diameter of the tubular member 11 is substantially the same as the inner diameter of the branch pipe portion 6, and a packing is attached to the outer periphery thereof, and an elevating portion 12 is attached to the end portion.

The elevating portion 12 is a member having a substantially triangular cross-sectional view attached to the end portion of the tubular member 11, and moves forward and backward in a substantially horizontal direction according to the operation of the operating portion 8. The elevating portion 12 is provided with an inclined portion 13 that is inclined downward from the top portion 14 toward the transmission portion 10 with the end portion on the center side of the drainage flow path as the top portion 14. In other words, the inclined portion 13 is inclined upward toward the center of the drainage flow path, and the inclined portion 13 abuts and slides with the valve body 15 as the elevating portion 12 moves forward and backward. The top portion 14 is the apex of the inclined portion 13, is formed at the end portion and the highest position of the elevating portion 12, and has a horizontal portion on which the valve body 15 can be placed.
When a pushing operation is applied to the operating unit 8, the elevating unit 12 advances toward the side surface of the drainage flow path facing the branch pipe unit 6, and a pulling operation is applied to the operating unit 8. When it is drained, it retreats to the transmission unit 10 side. In the present embodiment, when the elevating part 12 is most advanced, its end reaches the center of the drainage flow path, and when it is most retracted, only the top portion 14 of the inclined portion 13 is exposed to the drainage flow path. Retreat to a degree. Further, when the elevating portion 12 is most retracted, the valve body 15 is placed on the top portion 14 to support the raised valve body 15.

The valve body 15 is composed of a valve lid 16 for opening and closing the drain port 4, and a perforated plate 18 for catching dust. In this embodiment, the valve lid 16 and the perforated plate 18 are configured as separate members.
The valve lid 16 has a circular shape in a plan view, and is a water stop member having a packing fitted on the outer periphery thereof, and moves up and down with the operation of the drain plug device. Further, the valve lid 16 has a shaft portion 17 suspended from the center of the lower surface. When the valve lid 16 is in the lowered state, the packing comes into contact with the peripheral edge of the drain port 4, so that hot water can be stored inside the tank body B, and when the valve lid 16 is in the raised state, the tank is in the raised state. The hot water and dust inside the body B can be discharged to the downstream side through the drainage pipe 1. The shaft portion 17 is inserted into a bearing 20 formed at the center of the perforated plate 18, which will be described later, and an annular packing attached to the lower end is in contact with the inner circumference of the bearing 20.
The perforated plate 18 has a mesh-shaped collecting portion 19, and a bearing 20 is opened vertically in the center thereof, and a mounting portion 21 is provided at the lower end thereof. The bearing 20 is an opening that penetrates the perforated plate 18 up and down, and its inner diameter is substantially the same as that of the shaft portion 17. The mounting portion 21 is an annular portion having substantially the same diameter as the outer diameter of the drainage pipe 1, the outer periphery thereof is formed along the inner peripheral surface of the drainage pipe 1, and the lower end thereof is the inclined portion 13 of the elevating portion 12. It is in contact.

The operation and operation of the drain plug device composed of the above members are as follows.

As shown in FIG. 1, in a state where the valve body 15 is lowered, the packing fitted around the valve lid 16 is in contact with the peripheral edge of the drain port 4 and closes the drain port 4. At this time, as shown in FIG. 3A, the elevating portion 12 advances toward the side surface of the drainage flow path facing the branch pipe portion 6, and the end portion reaches the center of the drainage flow path. , The mounting portion 21 of the valve body 15 is arranged on the transmission portion 10 side of the inclined portion 13. Since the inclined portion 13 of the elevating portion 12 has a slope that becomes lower toward the transmission portion 10 side from the top portion 14, the mounting portion 21 is arranged at a lower position of the inclined portion 13.
When the user pulls up the grip portion 9 from the lowered state of the valve body 15, the transmission unit 10 transmits the displacement of the pulled up operation unit 8 to the elevating unit 12, and the elevating unit 12 retracts to the transmission unit 10 side. do. At this time, as the elevating portion 12 retracts, the inclined portion 13 abuts and slides on the mounting portion 21. As described above, since the inclined portion 13 has a gradient that becomes lower toward the transmission portion 10 side from the top portion 14, the valve body 15 is along the gradient of the inclined portion 13 as the elevating portion 12 retracts. Rise. When the grip portion 9 is pulled up to the upper end, the mounting portion 21 is mounted on the elevating portion 12. When the elevating part 12 is retracted to the transmission part 10 side most, the valve body 15 is placed on the top portion 14 which is the tip of the elevating part 12 and the highest position of the elevating part 12, as shown in FIG. 3 (b). Placed and the valve body 15 is supported in an elevated state.

In the state where the valve body 15 is raised, as shown in FIG. 2, the valve lid 16 is separated from the drain plug 2 and the drain port 4 is opened. Therefore, the user can discharge the hot water in the tank body B from the drain port 4. When the elevating part 12 is in the state of being retracted most toward the transmission part 10, most of the elevating part 12 is arranged in the branch pipe part 6, and the upper part is covered by the reduced diameter part 26 and the reduced diameter part 27. Therefore, only the top portion 14 is exposed in the drainage channel by about 1 to 2 mm. Therefore, since there are almost no members protruding inside the drainage channel, dust and hair in the hot water do not get caught in the elevating portion 12 and accumulate. In addition, the inner surface of the drainage channel becomes substantially smooth, which makes it possible to improve the design and the cleanability of the device.
Further, since the elevating portion 12 moves forward and backward in the branch pipe portion 6, the lower part of the elevating portion 12 is supported by the branch pipe portion 6. Therefore, even if stress is applied to the raised valve body 15 from above, the valve body 15 does not descend due to the stress.

On the other hand, when the user pushes down the grip portion 9 from the lowered state of the valve body 15, the transmission unit 10 transmits the displacement of the pushed down operation unit 8 to the elevating part 12, and the elevating part 12 is the center of the drainage flow path. Move forward towards. At this time, as the elevating portion 12 retracts, the inclined portion 13 abuts and slides on the mounting portion 21, so that the valve body 15 gradually descends along the gradient of the elevating portion 13 as the elevating portion 12 advances. do. When the grip portion 9 is pushed down to the lower end, the valve body 15 is placed at a low position of the inclined portion 13, and the packing fitted to the valve lid 16 comes into contact with the peripheral edge of the drain port 4, so that the drain port is opened. 4 is blocked.

As described above, in the present invention, when the inclined portion 13 abuts and slides on the mounting portion 21, the stress in the substantially horizontal direction of the elevating portion 12 is converted into the stress of raising and lowering the valve body 15 in the substantially vertical direction. Will be done.

Although the first embodiment of the present invention is described above, the present invention is not limited to the shape of the first embodiment, and various modifications may be made without departing from the gist of the present invention. .. In the embodiments described below, members having the same shape and function as those of the first embodiment are designated by the same numbers as those of the first embodiment and the description thereof will be omitted unless otherwise specified. In any of the second to sixth embodiments described below, when the valve body 15 rises and rises to the highest position, the elevating part 12 retracts toward the transmission part 10 side. However, only the top 14 is exposed in the drainage channel.

In the first embodiment, the elevating portion 12 has the inclined portion 13, but the valve body 15 may have the inclined portion 13 as in the second embodiment shown in FIGS. 4 and 5. .. The valve body 15 in the second embodiment is composed of a valve lid 16 and a perforated plate 18 as in the first embodiment, and the perforated plate 18 has a bearing 20 and a mounting portion 21. The mounting portion 21 has substantially the same diameter as the outer diameter of the drainage pipe 1, and the outer periphery thereof is formed in an annular shape along the inner peripheral surface of the drainage pipe 1, and the lower surface of the mounting portion 21 is the transmission portion 10. It is inclined downward toward the side and constitutes the inclined portion 13. On the other hand, the elevating portion 12 has a substantially L-shaped cross-sectional view, and the end portion and the highest position are configured as the top portion 14. In the drain plug device of the second embodiment, when the elevating portion 12 retracts toward the transmission portion 10, the top portion 14 of the elevating portion 12 abuts and slides on the inclined portion 13, and the valve body 15 rises.

Further, as in the third embodiment shown in FIGS. 6 and 7, the inclined portion 13 is composed of the first inclined portion 23 and the second inclined portion 24, and the elevating portion 12 includes the first inclined portion 23. , The valve body 15 may include a second inclined portion 24.

Further, the elevating portion 12 is not limited to the one that raises and lowers the valve body 15 by operating in a substantially horizontal direction, and the valve body 15 is not limited to the one that raises and lowers the valve body 15 by rotating, as in the fourth embodiment shown in FIGS. 8 and 9. May be raised and lowered.
In the fourth embodiment, the branch pipe portion 6 is provided with a convex portion 25 inside, and as shown in FIG. 9, when the elevating portion 12 advancing toward the drainage flow path side retracts with the operation of the operation portion 8. After the elevating portion 12 moves substantially horizontally for a predetermined distance, the elevating portion 12 comes into contact with the convex portion 25 and rotates so that the top portion 14, which is the end portion of the elevating portion 12, moves up and down. In the present embodiment, when the inclined portion 13 abuts and slides on the mounting portion 21, the rotational stress of the elevating portion 12 is converted into a stress that raises and lowers the valve body 15 in a substantially vertical direction. In the present embodiment, the stroke width required for raising and lowering the valve body 15 can be reduced by rotating the elevating portion 12.

Further, in each of the above embodiments, since the elevating portion 12 operates in the branch pipe portion 6 formed substantially horizontally, the elevating portion 12 moves forward and backward in the substantially horizontal direction, but the fifth is shown in FIGS. 10 and 11. As in the embodiment, the branch pipe portion 6 is inclined upward from the drainage channel toward the end portion, and the elevating portion 12 may advance and retreat in an oblique direction. Further, as in the fifth embodiment, when the elevating portion 12 moves forward and backward in an oblique direction, it is not necessary to provide the inclined portion 13.

Further, the drain plug device in the present invention may be provided with a shock absorber 28 that prevents the stress from being transmitted to each member when an excessive stress is applied to the valve body 15. In the sixth embodiment shown in FIGS. 12 to 14, the shock absorber 28 is a spring attached to the end portion of the tubular portion 11 on the transmission portion 10 side. As shown in FIG. 13, the shock absorber 28 is arranged so that its end portion abuts on the end portion of the cylindrical portion 6 when the valve body 15 is raised. Here, when an excessive stress is applied to the valve body 15 from above from the raised state of the valve body 15, the shock absorber 28 contracts as shown in FIG. 14, and the elevating part 12 presses the top portion 14. Retreat until it is completely housed in the branch pipe portion 6, including the branch pipe portion 6. At this time, the valve body 15 is lowered until the mounting portion 21 is located below the top portion 14, and by buffering the stress, excessive stress is applied to each member to prevent each member from being damaged. can do.
The shock absorber 28 may be replaced with a spring and an elastic material such as rubber may be used, the elevating portion 12 itself may be made elastic, or the shock absorber may be arranged inside the valve body 15.

1 Drainage pipe 2 Drainage plug 3 Drainage plug 4 Drainage port 5 Lower pipe 6 Branch pipe part 7 Overflow flow path 8 Operation part 9 Grip part 10 Transmission part 11 Cylindrical member 12 Elevating part 13 Inclined part 14 Top 15 Valve body 16 Operculum 17 Shaft 18 Plate 19 Collection 20 Bearing 21 Mounting 23 First tilt 24 Second tilt 25 Convex 26 Reduced diameter 27 Reduced diameter 28 Shock absorber B Tank body

Claims (6)

Drainage pipes that form drainage channels inside,
A valve body that opens and closes the drainage port formed in the tank body,
An operation unit that raises and lowers the valve body, and
A transmission unit that transmits the operation applied to the operation unit to the drainage port side,
It is a drain plug device consisting of
The transmission portion includes an elevating portion that raises and lowers the valve body at one end.
The valve body is provided with a mounting portion whose outer end is formed along the inner peripheral surface of the drainage pipe and which is mounted on the elevating portion when the valve body is raised.
The elevating part advances from the inner wall of the drainage pipe toward the drainage flow path or moves backward toward the transmission part based on the operation of the operation part.
When the elevating part is retracted, the previously described placing part is placed on the elevating part to raise the valve body, and at the same time, the valve body is raised.
At least one of the elevating portion and the valve body has an inclined portion that inclines downward toward the transmitting portion.
In response to the operation of the elevating portion applied to the operating portion, the inclined portion provided on one of the elevating portion and the valve body slides in contact with the other, and the valve body slides due to the sliding action. A drain plug device characterized by raising and lowering. The inclined part
The drain plug device according to claim 1, wherein the drain plug device is formed on the valve body. The inclined part
The drain plug device according to claim 1 or 2, wherein the drain plug device is formed on the elevating portion. The drainage channel has a reduced diameter portion on the upstream side of the elevating portion.
The drain plug device according to any one of claims 1 to 3, wherein at least a part of the elevating portion is covered with the reduced diameter portion. The elevating part or the valve body is provided with a shock absorber that prevents the stress from being transmitted to each member when an excessive stress is applied to the valve body. The drain plug device according to any one of claims 4. Claims 1 to claim 1, wherein the elevating part is partially arranged outside the drainage flow path in the most retracted state, and the portion where the valve body is arranged is exposed inside the drainage flow path. The drain plug device according to any one of 5.

Images