JPH0875018A - Change-over valve - Google Patents

Abstract

PURPOSE: To facilitate changing of branch passages, and correctly secure outflow water quantity in each branch passage by positioning balls at aperture parts when the aperture parts are closed for shielding outflow of water, and rotating a shaft body to rotate protrusions for opening the aperture parts by the respective balls in order. CONSTITUTION: When surfaces other than a sector on which two protrusions 26 of a shaft body 25 are protruded are directed downward, balls 24 are pressed to all aperture parts 30 by water pressure to shield outgoing of water from branch passages 29. In this condition, a lever 39 is manually operated to rotate a shaft body 25 to position the protrusion 26 positioned at a center downward, for example, and the ball 24 moves from the aperture part 30 of a cylindrical inner branch passage 28 positioned at a center to open the aperture part 30, so outgoing of water is executed to the branch passage 29 for material water shower. For opening operation of the aperture part 30, the protrusions 26 are provided at different positions from each other in the circumferential direction of the shaft body 25, so simultaneous opening of the two aperture parts 30 is prohibited.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching valve which is provided at a faucet such as a water supply and which switches a raw water straight, a raw water shower, a water purifier and the like.

[0002]

2. Description of the Related Art FIG. 8 is a diagram showing an example of a conventional switching valve. In the figure, 1 is a valve body, 2 is a water channel formed vertically in the center of the valve body 1, and 3 is a packing 4 in the water channel 2. Is provided so as to be rotatable around an axis in the horizontal direction while being pressed against, a water channel is formed inside, and a plurality of openings 5, 6 communicating with the water channel are asymmetric with respect to the axis in the outer peripheral portion thereof. A cylindrical portion formed at a position where 7 is a cock for rotating the cylindrical portion 3, 8 is a rotating ring for mounting the valve body 1 on the faucet, and 9 is formed in the center of the lower portion of the valve body 1. The straight outlet 10 that communicates with the opening 5 is a shower outlet that is formed in the lower portion of the valve body 1 in the vicinity of the straight outlet 9 and that communicates with the opening 6. Further, a screw portion 11 for screwing an annular shower cap is formed at the lower end of the valve body 1.

In this switching valve, the cock 7 rotates the tubular portion 3 in a predetermined direction around the horizontal axis, and the opening 5 of the tubular portion 3 communicates with the straight outlet 9. Raw water flowing out of the faucet flows out downward from the straight outlet 9 through the water channel 2, the water channel in the tubular portion 3 and the opening 5. Further, when the tubular portion 3 is rotated in the opposite direction to the above by the cock 7 and the opening 6 of the tubular portion 3 is communicated with the shower outlet 10, the raw water flowing out from the faucet becomes the water channel 2 and the tubular portion. It flows out downward from the shower outlet 10 through the water channel in 3 and the opening 6, and flows out like a shower from a shower cap (not shown).

[0004]

By the way, in the conventional switching valve, the water channel 2, the tubular portion 3, the straight outlet 9, the shower outlet 10, the shower cap, etc. are vertically arranged. Therefore, the height dimension inevitably becomes large, and it is difficult to further reduce the height. Therefore, when the switching valve is attached to the faucet,
The distance between the lower end of the switching valve and the bottom of the sink becomes extremely narrow, and a working space below the switching valve cannot be sufficiently secured, which makes it difficult to perform work such as cooking and washing dishes. . Further, the switching valve is configured such that the opening 5 of the tubular portion 3 and the outflow port 9 of the valve body 1, and the opening 6 and the outflow port 10 coincide with each other so that the water flows out to the target outflow port. Therefore, the openings 5, 6 and the outlets 9, 10
In order to secure a sufficient amount of outflow water, the cylindrical portion 3 and the valve body 1 need to have a sufficient circumferential dimension, so that the size becomes large and the above problem becomes more remarkable. . Furthermore, if the openings 5, 6 of the tubular portion 3 and the outlets 9, 10 of the valve body 1 do not exactly match, the desired amount of water cannot be obtained, and conversely, the openings 5, 6 and the outlets There is a problem that water leakage may occur when the water is stopped unless they are completely separated from each other. Therefore, when the openings 5 and 6 and the outflow portions 9 and 10 are large, the cylindrical portion 3 and Valve body 1
Will be forced to increase in size.

The present invention has been made in view of the above circumstances, and it is possible to provide an inexpensive switching valve which is miniaturized in its entirety, capable of ensuring a sufficient and accurate amount of outflow water in each branch passage. To provide.

[0006]

In order to solve the above problems, the present invention employs the following switching valve. That is, in the switching valve according to claim 1, a plurality of branch flow passages are detachably provided in a faucet such as water supply, a flow passage is formed inside, and the downstream side of the flow passage is defined by one or more partition walls. And
A tubular portion in which an opening communicating with the outside is formed in these branch flow paths, a ball movably provided in each of the plurality of branch flow paths and capable of opening and closing the opening, and the plurality of branches. A shaft body that is disposed along the direction of arrangement of the flow channels and is rotatably provided around the axis, and is provided on the outer peripheral portion of the shaft body so as to correspond to each of the branch flow channels. It is characterized in that it is provided with a plurality of projections that rotate around the axis of the shaft and move the ball in the rotation direction to open and close the opening.

According to a second aspect of the present invention, there is provided the switching valve according to the first aspect, wherein the plurality of openings are arranged substantially parallel to the shaft body and the protrusions are located at different positions in the circumferential direction of the shaft body. It is characterized by being placed in.

A switching valve according to a third aspect is the switching valve according to the second aspect, wherein the branch passage is selected from a raw water straight branch passage, a raw water shower branch passage, and a water purifier branch passage. It is characterized by being two or more.

According to a fourth aspect of the present invention, there is provided the switching valve according to the third aspect, wherein at least one of the branch flow passages has an opening formed in a side wall of the tubular portion.

According to a fifth aspect of the present invention, there is provided a switching valve according to the third or fourth aspect, wherein the branch passage for the water purifier is detachably provided with an adapter that is commonly used for connecting a plurality of types of water purifiers. It is characterized by that.

According to a sixth aspect of the present invention, there is provided a switching valve according to the first to fifth aspects.
In the switching valve according to any one of the above items, a bottom plate that is curved along the rotation locus of the protrusion and that prevents the ball from flowing out is provided downstream of the shaft body in each of the branch flow paths. It is characterized by that.

[0012]

In the switching valve according to the first aspect of the present invention, the opening is opened and closed by moving the ball in the branch passage by the projection. When the opening is closed, the ball is located in the opening, and the ball is pressed against the opening by water pressure to block outflow of water. Further, when opening the opening closed by the ball, the shaft is rotated so that when the projection rotates and passes near the opening, the ball closing the opening is blocked by the projection. Move in the direction of rotation. As a result, by rotating the shaft body, each ball sequentially opens and closes each opening, whereby the branch flow paths are switched.

In the switching valve according to the second aspect, when the shaft is rotated, the opening of the branch flow passage corresponding to the projection is opened and closed in the order of passage of the projection passing near the arrangement position of the openings. . When the shaft body is rotated in the opposite direction, the openings are opened and closed in the reverse order.

According to another aspect of the present invention, in the switching valve, the number of branch passages is two or more selected from a raw water straight branch passage, a raw water shower branch passage, and a water purifier branch passage. By simply rotating the shaft around its own axis, two or more of raw water straight, raw water shower, and water purifier can be easily selected.

In the changeover valve according to the fourth aspect, it is not necessary to dispose the branch flow passage that flows out to the side of the changeover valve in the lower part of the tubular portion, and the height dimension of the changeover valve is particularly reduced, and the changeover valve is Simplifies the structure of.

In the switching valve according to the fifth aspect of the present invention, the branch passage for the water purifier is detachably provided with an adapter that is commonly used for the connection portion of the multi-water purifier, so that the multi-water purifier can be connected. It can also be applied when various types of water purifiers are selectively used depending on the application and user convenience.

In the switching valve according to the sixth aspect, when the shaft is rotated, the balls are guided by the bottom plate and pressed by the projections to move stably. At this time, the ball moves stably without being caught by the opening portion in the tubular portion, so that the stability of the valve switching operation is improved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the switching valve according to the present invention will be described below with reference to FIGS. FIG. 1 is a vertical sectional view of a switching valve of this embodiment, and FIG. 2 is a plan view of the same. In the figure, 21 is a switching valve, 22 is a cylindrical portion, 23 is a partition wall, 24 is a ball, 25 is a shaft body, 26 is a protrusion, 27 is a flow passage, 28 is a branch passage in the cylinder, 29 is a branch passage, 30 Is an opening.

The tubular portion 22 has a cylindrical shape and is arranged with its axis being vertical. A raw water inlet 3 into which a water faucet (not shown) is inserted is provided on the upper portion of the tubular portion 22.
1 is opened, and a fixing ring 32 for fixing the faucet inserted into the raw water inlet 31 is arranged so as to surround the raw water inlet 31. The entire inside of the tubular portion 22 is a flow passage 27 for water introduced from the raw water introduction port 31, and in the ceiling portion of the flow passage 27, a half-split cylindrical bearing 33 is provided as shown in FIG. Placed and fixed with the top facing up. In the lower part of the tubular portion 22, the partition wall 23 that partitions the lower part of the flow channel 27 into three in-tubular branch flow channels 28, 28, 28.
Two are fixed. These partition walls 23 correspond to the cylindrical portion 2
A bottom plate 34 provided on the downstream side of the shaft body 25 in the lower part of 2 protrudes toward the upstream side along a plane perpendicular to the axis of the bearing 33. At the upper ends of the partition walls 23, a curved portion 35 is formed along the same cylindrical surface as the bearing 33. The bottom plate 34 is formed to be curved along the locus of rotation of the protrusion 26. In the bottom plate 34, a circular opening 30 is formed in each of the portions facing the respective branch passages 28, 28, 28 in the tubular portion so as to pass through the bottom plate 34 inside and outside the switching valve 21. These openings 30, 3
The balls 0 and 30 are formed in such a shape that the balls 24 cannot pass through, and are arranged along the axis parallel to the axis of the bearing 33. Each of these openings 30, 30, 30 has a branch flow path 2 for guiding the outflowing water to a target position.
9 is connected. Branch passages 28, 28 in the tubular portion,
Balls 24 are arranged in the respective cylinders 28 so as to be movable in the branch passage 28 in the tubular portion. Two balls 24 are arranged in the cylindrical branch branch flow passage 28 located at the center, and one ball 24 is arranged in each of the other cylindrical branch branch flow passages 28, 28. At 28, the opening 30 is formed in a shape that can be opened and closed.

The shaft body 25 is a member having a substantially outer cylindrical shape, and is arranged between the bearing 33 and the two partition walls 23, 23 with its own axis parallel to the axis of the bearing 33. One end of the shaft body 25 is rotatably fitted in a recess 37 provided on the inner surface side of the side wall 36 of the tubular portion 22, and
The other end of 5 is rotatably fitted in a fitting hole 38 formed in a side wall 36 of the tubular portion 22 facing the concave portion 37 on the diametrically opposite side, and is fitted to the outside of the fitting hole 38. It is projected. At the end of the shaft 25 protruding from the tubular portion 22,
A lever 39 for rotating the shaft 25 about its own axis is fixed. The lever 39 is projected to one side in the radial direction of the shaft body 25, and is rotated around the axis of the shaft body 25 to rotate the shaft body 25. In addition, a disk-shaped water stop portion 40 that stably rotates the shaft body 25 while integrally blocking water in the fitting hole 38 is provided at the base end portion of the lever 39. The surface on one side of the water blocking portion 40 is in sliding contact with the outer surface of the tubular portion 22.
A ball 41 is rotatably supported on the surface of the water stop portion 40 that is in contact with the outer surface of the tubular portion 22. The ball 41 is constantly urged to the outer surface of the cylindrical portion 22 by a spring 42 mounted in the water stop portion 40, and gives a click feeling of switching when the lever is operated. The lever 39 and the water stop portion 40 are fixed by a screw 25 a screwed to the end portion of the shaft body 25. Branch flow path 2 in each cylinder of shaft 25
A total of three protrusions 26, 26, 26 for moving the balls 24 arranged in the respective branch flow passages 28, 28, 28 in the respective cylindrical portions are provided on the outer peripheral portion facing 8, 28, 28 in a protruding manner. There is. These projections 26, 26, 26 are arranged in the same fan shape within a central angle of 180 degrees in the cross-sectional direction of the shaft body 25.
5 are spaced apart from each other in the circumferential direction of 5 and are collectively arranged. When the shaft body 25 rotates, the balls collide with the balls 24 that close the opening 30, and the balls 24 open the opening 30. It is formed in a movable shape.

Of the branch flow paths 29, the fitting hole 3 is the most
The one connected to the opening 30 located on the 8th side is the raw water straight branch flow channel 43 (branch flow channel), and the one connected to the central opening 30 is the raw water shower branch flow channel 44 ( A branch flow path), which is connected to the opening 30 located on the recess 37 side, is a water purifier branch flow path 45 (branch flow path). The raw water shower branch flow passage 44 communicates with an internal flow passage of a flat disk-shaped shower cap 46 that covers substantially the entire lower surface of the tubular portion 22. The water purifier branch passage 45 extends and is opened in the side direction of the switching valve 21,
It is connected to a water purifier (not shown) arranged outside the switching valve 21. The water purifier branch channel 45 is formed in a ring-shaped cross section. An adapter 4 having a ring-shaped cross section for detachably connecting the water purifier branch flow passage 45 and the water purifier (not shown) to the outside of the water purifier branch flow passage 45.
8 is provided concentrically with the branch passage 45 for the water purifier. The adapter 48 is detachably attached to the base portion of the water purifier branch flow passage 45 via a screw 48a. In the water purifier branch flow passage 45, in the vicinity of the opening 30 facing the water purifier branch flow passage 45, a drainage air intake 45a for preventing retention in the branch water passage when water is stopped (see FIG. 2). Are connected.

According to the switching valve 21, the balls 25 are provided in all the openings 30 by directing the shaft 25 to the lower surface other than the fan-shaped surface on which the projections 26, 26, 26 are provided.
No. 4 is pressed by water pressure so that no water flows out from any of the branch flow paths 29. Then, by manually operating the lever 39, the shaft 25 is rotated, and, for example, if the protrusion 26 located at the center is positioned below as shown in FIGS. 1 and 3, as shown in FIG. , The ball 24 is moved from the opening 30 of the branch flow passage 28 in the cylindrical portion located at the center to open the opening 30.
Is flooded. Similarly, for the other in-cylinder branch flow channels 28, by rotating the shaft body 25, as shown in FIGS. 4 and 6, the projections 26 arranged with respect to the in-cylinder branch flow channels 28 open the openings. The ball 24 is moved from 30 to open the opening 30. In the opening operation of these openings 30, since the protrusions 26, 26, 26 are provided at different positions in the circumferential direction of the shaft body 25, the two openings 30 are not opened at the same time. Also,
When any one of the openings 30 is opened, the other openings 30 are closed by the balls 24, but the raw water straight branch flow path 43 or the water purifier branch flow path 45.
When water is discharged to the water, the opening 30 to which the raw water shower branch flow path 44 is connected has two balls 24 arranged in the tubular branch flow path 28 in which the opening 30 is provided,
Blocked by any of 24. When the shaft body 25 is rotated clockwise when viewed from the lever 39 side in FIG. 3 from a state in which the opening portion 30 facing the raw water straight branch passage 43 is opened (see FIG. 4), first, FIG. The opening 30 facing the branch channel 44 for raw water shower,
Next, as shown in FIG. 6, the opening 30 facing the water purifier branch flow path 45 is opened. On the contrary, from the state of FIG.
When 5 is rotated counterclockwise when viewed from the lever 39 side, the state shown in FIG.

Therefore, according to the switching valve 21, the branch passage 29 for discharging water is switched by rotating the shaft 25 to open / close the opening 30, so that the switching can be easily performed. Since the space for moving the ball 24 is small, the height dimension can be made smaller and the size can be reduced as compared with the conventional switching valve. Ball 2
4 does not easily stop at an intermediate position between opening and closing with respect to the opening 30, and when the water is stopped, the ball 24 is pressed against the opening 30 by water pressure. The water leakage at the time and the desired water output can be obtained stably. Since the bottom plate 34 is formed to be curved along the rotation locus of the protrusion 26, when the shaft 25 is rotated, the balls 24
While being guided by the bottom plate 24, the protrusions 26 are pressed by the protrusions 26 and stably moved, so that the stability of the valve switching operation is improved.

Since the branch passage 45 for the water purifier extends and is opened at the side portion of the switching valve 21, the height dimension of the switching valve 21 is reduced, and the raw water straight branch passage 43 and the raw water shower branch are provided. It is possible to secure a working space below the switching valve 21 when water is discharged from the flow path 44. Further, the water purifier can be easily attached to and detached from the water purifier branch passage 45 through the adapter 48, and the attaching / detaching workability of the water purifier is improved, which is convenient when using plural types of water purifiers.

The number of the openings 30 formed may be other than the above-mentioned three locations as long as it is plural. The flow path 27
The branch passage 28 in the tubular portion formed inside may be other than the above-mentioned 3. The tubular portion 22 may be provided with a plurality of water purifier branch channels 45. In this case, the branch channel 45 for each water purifier
If the opening 30 is configured to be opened and closed by the rotation of the shaft body 25, the plurality of types of water purifiers can be easily switched only by rotating the shaft body 25.

Next, FIG. 7 shows a second embodiment of the switching valve of the present invention.
Will be described with reference to. The switching valve of this embodiment is the same as the switching valve 21 of the first embodiment, except that the branch passage 45 for the water purifier is used.
The opening portion 30 facing toward is opened in the side portion of the tubular portion 22. According to the switching valve of this embodiment, the bottom plate 3 of the tubular portion 22 is
4 for the water purifier between the shower cap 4 and the shower cap 46
Since 5 is unnecessary, the size of the switching valve in the height direction can be reduced. Further, the branch passage 45 for the water purifier is shortened, the structure of the lower portion of the switching valve is simplified, and the manufacturing is facilitated, so that the cost is reduced.

In the above-described embodiment, only the branch passage 45 for the water purifier is extended and opened at the side portion of the switching valve 21, but other branch passages 43 and 44 are provided at the side portion of the switching valve 21. The structure may be extended / opened.

[0028]

As described above, according to the switching valve according to the first aspect of the present invention, the branch flow path for discharging water is switched by rotating the shaft to open and close the opening, which is easy. In addition, since the space for moving the ball is small, the height dimension can be made smaller and the size can be reduced as compared with the conventional switching valve. Also, the ball is unlikely to stop at an intermediate position between opening and closing with respect to the opening, and moreover, when the water is stopped, the ball is pressed against the opening by water pressure. Leakage and the desired water output can be obtained stably.

According to the switching valve of the second aspect, since the opening and closing order of the opening is regular according to the rotation of the shaft, the operability is improved. Since the plurality of openings are arranged on substantially the same axis and the shaft is parallel to the axis of the arrangement of the openings, further space saving can be achieved.

According to the switching valve of the third aspect, the branch passage is two or more selected from the raw water straight branch passage, the raw water shower branch passage, and the water purifier branch passage. It is possible to easily select two or more of raw water straight, raw water shower, and water purifier simply by rotating the shaft body.

According to the switching valve of the fourth aspect, since the dimension in the height direction is particularly reduced, it is easy to secure a working space below the switching valve and the structure of the lower portion of the switching valve is simplified. Therefore, the manufacturing is easy and the cost is reduced.

According to the switching valve of the fifth aspect, since the adapter common to the connecting portion of the water purifier is detachably provided in the water purifier branch passage, various water purifiers can be easily connected. It is possible to select and use various water purifiers depending on the application and the usability of the user.

According to the switching valve of the sixth aspect, since the bottom plate is formed so as to be curved along the rotation locus of the projection, when the shaft is rotated, the ball is guided by the bottom plate and is guided by the projection. It is pressed and stably moved, and the stability of the valve switching operation is improved.

[Brief description of drawings]

FIG. 1 is a front sectional view showing a switching valve according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a switching valve according to a first embodiment of the present invention.

FIG. 3 is a side sectional view showing a switching valve according to a first embodiment of the present invention.

FIG. 4 is a view showing the operation of the switching valve of the first embodiment of the present invention, and is a horizontal cross-sectional view showing the opening of the opening facing the raw water straight branch passage.

FIG. 5 is a view showing the action of the switching valve of the first embodiment of the present invention, and is a horizontal cross-sectional view showing the opening of the opening facing the branch channel for raw water shower.

FIG. 6 is a view showing the action of the switching valve of the first embodiment of the present invention, and is a horizontal cross-sectional view showing the opening of the opening facing the branch passage for the water purifier.

FIG. 7 is a front sectional view showing a switching valve according to a second embodiment of the present invention.

FIG. 8 is a partially cutaway perspective view showing a conventional switching valve.

[Explanation of symbols]

 21 Switching Valve 22 Cylindrical Section 23 Partition Wall 24 Ball 25 Shaft Body 26 Protrusion 27 Flow Path 28 Branch Flow Path (Cylinder Part Branch Flow Path) 29 Branch Flow Path 30 Opening 43 Branch Flow Path (Raw Water Straight Branch Flow Path) 44 Branch Flow path (branch flow path for raw water shower) 45 Branch flow path (branch flow path for water purifier) 48 Adapter

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiroyuki Eguchi 1-27-10 Hositakita 1-chome, Katano City, Osaka Prefecture

Claims (6)

[Claims] 1. A detachable installation on a faucet such as water supply,
A tubular portion in which a flow passage is formed, a downstream side of the flow passage is defined by one or more partition walls to form a plurality of branch flow passages, and an opening communicating with the outside is formed in these branch flow passages; A ball that is movably provided in each of the plurality of branch channels and that can open and close the opening; and a ball that is arranged along the arrangement direction of the plurality of branch channels and is rotatable about an axis. And a shaft body provided on the outer peripheral portion of the shaft body so as to correspond to the branch flow passages, and the shaft body rotates about the axis of the shaft body as the shaft body rotates.
A switching valve comprising: a plurality of protrusions that move the ball in the rotating direction to open and close the opening. 2. The switching valve according to claim 1, wherein the plurality of openings are arranged substantially parallel to the shaft body, and the protrusions are arranged at different positions in the circumferential direction of the shaft body. A characteristic switching valve. 3. The switching valve according to claim 1 or 2, wherein the branch passage is selected from a raw water straight branch passage, a raw water shower branch passage, and a water purifier branch passage.
A switching valve characterized in that it is one or more. 4. The switching valve according to claim 3, wherein at least one of the branch passages has an opening that is opened in a side wall of the tubular portion. 5. The switching valve according to claim 3 or 4, wherein an adapter commonly used for connecting portions of a plurality of types of water purifiers is detachably provided in the water purifier branch flow path. . 6. The switching valve according to any one of claims 1 to 5, wherein each of the branch passages is formed downstream of the shaft body so as to be curved along a rotation locus of the protrusion.
A switching valve having a bottom plate for preventing the balls from flowing out.