JP4163527B2 - Water saving equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water-saving device, and more particularly to a water-saving device that is disposed in the middle of a water supply channel to limit the amount of water flow.
[0002]
[Prior art]
Conventionally, as this type of water-saving device, a flange portion for mounting is provided on the outer periphery of the main body in which through holes for allowing water to pass are formed at a plurality of locations in the circumferential direction, and the flange portion is sandwiched between seams of the water supply channel. By attaching it, the amount of water flowing in the water supply channel is limited, and the water flow is made to flow along the inner surface of the water supply channel by forming the through holes inclined radially outward. However, it is expensive because a separate water-saving device is required for each desired amount of water flow, and it is not easy to form a through-hole at a slant. There was a problem of becoming high.
[0003]
Therefore, as shown in FIG. 16 and FIG. 17, the applicant of the present invention has a partition plate 32 that is sandwiched and held by the joint portion 31 of the water supply channel 30 to partition the water supply channel 30, and one side of the partition plate 32. A ceramic screw main body block 33 that is disposed and fastened and fixed by a nut 35 is provided. The main body block 33 is formed on the partition plate 32 by changing the rotational position around the special screw 34. It has been proposed that the number of overlaps between the plurality of openings 36 and the plurality of through holes 37 formed in the main body block 33 is changed.
[0004]
Reference numeral 38 denotes a protrusion protruding from a contact surface of the main body block 33 with respect to the partition plate 32, and is engaged with an arbitrary opening 36 to restrict the relative rotational position of the partition plate 32 and the main body block 33. The through hole 37 is formed in parallel with the axis of the water supply passage 30, and an umbrella-shaped surface 40 is formed on the head 39 of the special screw 34 protruding from the main body block 33 so as to face the water outflow path from the through hole 37. The water is made to flow along the inner surface of the water supply channel 30 (see Patent Document 1).
[0005]
According to the water-saving device having such a configuration, the amount of flowing water can be varied by changing the relative rotational position of the partition plate 32 and the main body block 33, so that it is not necessary to make a water-saving device for each amount of water flow, and the through hole Even if 37 is formed parallel to the axis, water flows along the inner surface of the water supply path 30 on the umbrella-shaped surface 40 of the screw head 39, so that the water flow is not reduced while providing a water-saving effect.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-21148
[Problems to be solved by the invention]
However, in the conventional water-saving device, when changing the amount of water flow, the nut 35 is loosened with respect to the special screw 34 to widen the space between the nut 35 and the head 39 of the special screw 34, and On the other hand, the main body block 33 is separated to release the engagement between the protrusion 38 and the opening 36 of the partition plate 32, and the main body block 33 is engaged with the arbitrary opening 36 of the partition plate 32. After the relative rotation as described above, an operation of fastening the nut 35 is necessary, and an operation using a tool is necessary for changing the amount of flowing water, which is troublesome and troublesome. Further, in addition to the main body block 33 and the partition plate 32, special screws 34 and nuts 35 are required. Further, since the main body block 33 is made of ceramics, there is a problem that the cost is increased.
[0008]
An object of this invention is to provide the water-saving tool which can change a flow amount of water easily, and can aim at a cost reduction in view of the said conventional problem.
[0009]
[Means for Solving the Problems]
The water-saving device of the present invention is provided with a partition plate that is attached to the joint of the water supply channel to partition the water supply channel and has a plurality of openings formed on the circumference of a predetermined radius, and is arranged so that the rotational position can be changed on one surface side of the partition plate. And a main body block having a plurality of through holes formed on the circumference of the predetermined radius, and the number of overlapping openings and through holes is changed by changing the rotation position of the partition plate and the main body block. In the water-saving device, a mounting shaft that is fixed to the partition plate and rotatably supports the main body block between a position in contact with the partition plate and a position separated by a predetermined distance, and the main body block facing the partition plate Urging means for urging and contacting the partition plate, and positioning the main body block in the rotational direction at a position where an arbitrary opening and through hole overlap with the partition plate and the main body block in contact with each other , At a position separated by a predetermined distance Engaging means for releasing the pressure, and when changing the amount of flowing water, it is only necessary to rotate the main body block away from the partition plate against the urging force of the urging means and to rotate to a desired position. Therefore, it is possible to easily change the amount of flowing water.
[0010]
The mounting shaft is fixed to the partition plate by caulking, and the urging means is constituted by a compression coil spring interposed between the large-diameter collar portion at the tip end portion of the mounting shaft and the main body block. In addition to the main body block, by using a simple and inexpensive mounting shaft and a compression coil spring obtained at low cost, the cost can be reduced as compared with the case of using special screws and nuts.
[0011]
In addition, the main body block is disposed on the downstream side of the partition plate, and the large-diameter flange has an umbrella-shaped surface facing the water outflow path through the through hole, and the through hole of the main body block is parallel to the axis of the water supply channel. Since the water can flow along the inner surface of the water supply channel with the umbrella-shaped surface while being formed, the water flow can be prevented from thinning while exhibiting a water-saving effect with a low-cost configuration.
[0012]
In addition, the engagement means can be configured in various ways, for example, configured by a protrusion formed on the outer periphery of the mounting shaft and an engagement groove formed on the inner periphery of the main body block. If the protrusion is provided so as to be fitted and engaged with any of the openings of the partition plate on the contact surface, the structure is simple and can be manufactured at low cost.
[0013]
In addition, when the opening is formed at each vertex position excluding one vertex of the regular polygon and the through hole is formed at each vertex position except two vertices in the diameter direction of the regular polygon, the rotation position is changed by the angle between the vertices. This is suitable because the amount of flowing water can be varied.
[0014]
Further, when the main body block is formed of a synthetic resin molded product, the cost can be further reduced as compared with the case of being made of ceramics.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a water-saving device of the present invention will be described with reference to FIGS.
[0016]
The water-saving device 1 according to the present embodiment is attached to the joint portion 23 in the water supply path 22 in the universal faucet 21 and the shower head (not shown) shown in FIG.
[0017]
As shown in FIGS. 1 and 3 to 7 and another example in FIGS. 11 to 13, the water-saving device 1 includes a partition plate 2 that partitions the water supply path 22 and an axis of the partition plate 2. The mounting shaft 3 is integrally fixed to the core position, and the main body block 4 is mounted on one side of the partition plate 2 with the mounting shaft 3, and the outer peripheral portion of the partition plate 2 is sandwiched between the joint portions 23. The
[0018]
The main body block 4 is made of a synthetic resin molded product having a short cylindrical shape as a whole. In one example shown in FIGS. 2A, 3, 6, and 7, the mounting shaft 3 is fitted at the axial center position. A shaft hole 5 penetrating in a state is formed, and an appropriate range is formed in the large-diameter hole 6 from the end opposite to the surface in contact with the partition plate 2, and on the circumference of a predetermined radius, At four vertex positions excluding two vertices in the diameter direction of the regular hexagon in contact therewith, through holes 7 penetrating in parallel with the axial direction are formed. In addition, at the two vertex positions, a bottomed hole 8 having a bottom surface is formed on the partition plate 2 side in order to save material and eliminate molding distortion. Further, at one vertex position among the two vertex positions, A circular protrusion 9 having a low height protrudes from the surface that contacts the partition plate 2.
[0019]
The partition plate 2 is made of a metal disk such as a stainless steel plate, and as shown in FIG. 2B, a caulking hole 10 having a smaller diameter than the shaft diameter of the mounting shaft 3 is formed at the axial center position. The openings 11 having substantially the same diameter as the through holes 7 are formed at five vertex positions excluding one vertex of the regular hexagon inscribed therein. The protrusion 9 of the main body block 4 is formed to have a diameter and a length that can be fitted and engaged with the opening 11. When the protrusion 9 is fitted and engaged with any of the openings 11, the partition plate Any one of the two openings 11 and the through hole 7 of the main body block 4 overlap each other, and the number of the overlapping openings 11 and the through holes 7 is changed by changing the opening 11 into which the protrusion 9 is fitted and engaged.
[0020]
The mounting shaft 3 is made of a stainless steel machining shaft. As shown in FIG. 3, a small-diameter caulking shaft portion 3 a is projected from one end, and the caulking shaft portion 3 a is passed through the caulking hole 10 of the partition plate 2. By caulking the protruding portion, the caulking portion 12 is integrally fixed to the partition plate 2 as shown in FIGS. 1 and 4 to 7. The other end of the mounting shaft 3 is formed with a large-diameter flange 13 that can be engaged with the end surface of the main body block 4 opposite to the partition plate 2, and the surface facing the end surface of the main body block 4 is formed in the through hole 7. It is formed in the umbrella-shaped surface 14 of the outer diameter facing the outflow path of the water that has flowed out through.
[0021]
A compression coil spring 15 that presses and urges the main body block 4 toward the partition plate 2 is interposed between the large-diameter flange portion 13 of the mounting shaft 3 and the bottom step surface of the large-diameter hole 6 of the main body block 4. ing. The mounting shaft 3 has such a length that the protrusion 9 is detached from the opening 11 when the main body block 4 is moved to a position near the position where the main body block 4 abuts against the large-diameter flange 13 against the urging force of the compression coil spring 15. The main body block 4 can be arbitrarily rotated with respect to the partition plate 2 by releasing the engagement by separating the protrusion 9 from the opening 11.
[0022]
According to the water-saving device 1 having the above configuration, when changing the amount of flowing water, the main body block 4 is moved so as to be separated from the partition plate 2 against the urging force of the compression coil spring 15. The protrusion 9 may be detached from the opening 11 of the partition plate 2 to disengage the rotation direction, and in that state, the protrusion 9 may be rotated to a desired position.
[0023]
For example, in the example of FIG. 8, the protrusion 9 is fitted and engaged with the middle opening 11 among the five openings 11. In this state, the four openings 11 and the through holes 7 overlap each other, thereby Water flows out from the through hole 7. On the other hand, as shown in FIG. 9, when the protrusions 9 are fitted and engaged with the other openings 11, only the three openings 11 and the through holes 7 overlap each other, and water flows out only from the three through holes 7. do not do. Thus, by changing the rotational position of the main body block 4, the amount of flowing water can be easily changed, and it is easy to use.
[0024]
Further, the opening 11 is formed at each vertex position excluding one vertex of the regular polygon, and the through hole 7 is formed at each vertex position excluding two vertices in the diameter direction of the regular polygon. It is preferable that the amount of running water can be varied by changing the rotational position of each angle between the vertices. In this embodiment, the regular hexagonal shape can be used to change the flowing water amount in two stages. However, the regular octagonal shape may be used to change the flowing water amount in three stages.
[0025]
Further, the mounting shaft 3 is fixed to the partition plate 2 by a caulking portion 12, and a compression coil is provided between the large-diameter flange 13 at the tip of the mounting shaft 3 and the bottom step portion of the large-diameter hole 6 of the main body block 4. Since the main body block 4 is brought into contact with the partition plate 2 via the spring 15, in addition to the partition plate 2 and the main body block 4, a simple and inexpensive mounting shaft 3 and a compression coil spring 15 obtained at low cost. And can be manufactured at a lower cost as compared with the conventional configuration in which the special screw 34 and the nut 35 are fastened and fixed.
[0026]
In addition, the engaging means for restricting the relative rotational position of the partition plate 2 and the main body block 4 is provided by a projection 9 provided on the contact surface between the opening 11 of the partition plate 2 and the partition plate 2 of the main body block 4. Since it is configured, the opening 11 can be used as well as the protrusion 9 only needs to protrude from the main body block 4, and the configuration is simple and can be manufactured at low cost. Moreover, since the main body block 4 is comprised by the synthetic resin molded product, the cost reduction can be aimed at further compared with the case where it is made from the conventional ceramics.
[0027]
Further, in this embodiment, the partition plate 2 is disposed on the upstream side of the water supply channel 22, the main body block 4 is disposed on the downstream side, and the umbrella-shaped surface facing the water outflow path through the large-diameter flange 13 through the through hole 7. 14 is formed, water can flow along the inner surface of the water supply path 22 with the umbrella-shaped surface 14 while forming the through hole 7 of the main body block 4 in parallel with the axis of the water supply path 22. It is possible to prevent the water flow from narrowing while achieving a water saving effect with a low cost configuration.
[0028]
In other examples shown in FIGS. 11 to 13, the through holes 7 formed in the main body block 4 are opened to the side peripheral surface of the main body block 4, so that the main body block 4 is less likely to be molded and the yield is increased. In addition, durability is increased. Accordingly, it is not necessary to provide the bottomed hole 8 as in the above-described one example, and the molding die shape becomes simple. On the other hand, the opening 11 provided in the partition plate 2 is not particularly different from the one described above. In particular, the through-hole 7 of the main body block 4 extends laterally from the base side having a circumferential shape substantially corresponding to the peripheral edge of the caulking hole 10 side portion of the opening 11 of the partition plate 2. Open to the side surface.
[0029]
However, in spite of the opening of the through hole 7 to the side peripheral surface of the main body block 4, the protrusion 9 of the main body block 4 is fitted and engaged with any one of the openings 11 of the partition plate 2. Similarly to the case of the above-described one example, the opening 11 of the partition plate 2 and any of the through holes 7 of the main body block 4 overlap with each other, and the overlapping opening 11 by changing the opening 11 into which the protrusion 9 is fitted and engaged. The number of the through holes 7 changes as illustrated in FIGS. 14 and 15, and the degree of water saving can be adjusted.
[0030]
Here, since the opening 11 of the partition plate 2 is not different from the case of the above-described one example, it is possible to restrict the flow rate by the number of openings 11 that overlap with the water flow holes 7 flowing in the water supply passage 22. Since the through-hole 7 is opened with a spread on the side peripheral surface of the main body block 4, the water flowing from the opening 11 can be more easily aligned with the inner surface of the water supply path 22, and the water-saving feeling can be further reduced.
[0031]
Here, the through-hole 7 in one example described above and the through-hole 7 in this example receive the passage of the water in the water supply passage 22 through the opening 11 of the partition plate 2 that overlaps the passage hole 7 and flow downstream. They are common in that they form
[0032]
【The invention's effect】
According to the water-saving device of the present invention, in the water-saving device comprising the partition plate and the main body block, and the number of overlapping openings of the partition plate and the through holes of the main body block is changed by changing the rotation position thereof, the water-saving device is fixed to the partition plate. And a mounting shaft that supports the main body block so that the main body block can rotate and move freely between a position where the main body block is in contact with the partition plate and a position separated by a predetermined distance, and the main body block is urged toward the partition plate so as to contact the partition plate. The main body block is engaged and positioned in the rotational direction at a position where the opening and the through hole overlap with the biasing means to be in contact with the partition plate and the main body block, and is engaged at a position separated by a predetermined distance. Since the engagement means is released, the main body block only needs to be separated from the partition plate against the urging force of the urging means and rotated to a desired position when changing the amount of flowing water. Easily change volume Door can be.
[0033]
Further, the mounting shaft is fixed to the partition plate by caulking, and the biasing means is constituted by a compression coil spring interposed between the large-diameter collar portion at the tip end portion of the mounting shaft and the main body block. In addition to the main body block, a simple and inexpensive mounting shaft and a compression coil spring obtained at a low cost can be used to reduce the cost as compared with special screws and nuts.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing one example of a water-saving device according to an embodiment of the present invention.
2A and 2B show a partition plate and a main body block of the water-saving device in FIG. 1, wherein FIG. 2A is a plan view of the main body block, and FIG. 2B is a plan view of the partition plate.
FIG. 3 is an exploded perspective view of the water-saving device in FIG. 1;
4 is a front view of the water-saving device in FIG. 1. FIG.
FIG. 5 is a plan view of the water-saving device in FIG. 1;
6 is a cross-sectional view taken along arrow AA in FIG. 5;
7 is a cross-sectional view taken along line BB in FIG.
8 is a plan view of the water-saving device in FIG. 1 in a state where four openings and through holes are overlapped. FIG.
9 is a plan view of the water-saving device in FIG. 1 in a state where three openings and through-holes overlap each other.
10 is an explanatory diagram of a state in which the water-saving device of FIG. 1 is used for a universal faucet.
FIG. 11 is an exploded perspective view showing another example of the water-saving device according to the embodiment of the present invention.
12 is a cross-sectional view of the water-saving device in FIG.
13 is a bottom view of the water-saving device in FIG. 11. FIG.
14 is a plan view of the water-saving device in FIG. 11 in a state where four openings and through-holes overlap each other.
15 is a plan view of the water-saving device in FIG. 11 in a state where three openings and through holes overlap each other.
FIG. 16 is a longitudinal sectional view of a conventional water-saving device.
FIG. 17 is an exploded perspective view of the water-saving device of the conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water saving tool 2 Partition plate 3 Mounting shaft 4 Main body block 7 Through-hole 9 Protrusion part 11 Opening 12 Caulking part 13 Large diameter collar part 14 Umbrella-shaped surface 15 Compression coil spring (biasing means)
22 Water supply channel 23 Seam

Claims (6)

A partition plate that is attached to a joint of the water supply channel to partition the water supply channel and has a plurality of openings formed on a circumference of a predetermined radius, and is disposed on one surface side of the partition plate so that the rotational position can be changed and the predetermined radius A water-saving device comprising a main body block having a plurality of through holes formed on a circumference thereof, wherein the number of apertures and through holes that overlap with each other is changed by changing the rotational position of the partition plate and the main body block. a mounting shaft which is fixed movably supported between the contact position and a predetermined distance spaced positions freely and the partition plate rotating body block, the partition plate and urges the main body block to the partition plate The main body block is engaged and positioned in the rotational direction at a position where the opening and the through hole overlap each other with the biasing means to be in contact with the partition plate and the main body block, and the main body block is engaged at a position separated by a predetermined distance. Engagement to be released Water saving device, characterized in that a and stage.   The mounting shaft is fixed to the partition plate by caulking, and the urging means is constituted by a compression coil spring interposed between the large-diameter flange at the tip of the mounting shaft and the main body block. The water-saving device according to claim 1.   The water-saving device according to claim 2, wherein the main body block is disposed on the downstream side of the partition plate, and the large-diameter flange has an umbrella-shaped surface facing a water outflow path through the through hole.   4. The engagement means according to claim 1, further comprising: a protrusion projectingly provided to engage and engage with any opening of the partition plate on a contact surface of the main body block with the partition plate. A water-saving device according to any one of the above.   The opening is formed at each vertex position excluding one vertex of the regular polygon, and the through hole is formed at each vertex position except two vertices in the diameter direction of the regular polygon. A water-saving device according to any one of the above.   The water-saving device according to any one of claims 1 to 5, wherein the main body block is made of a synthetic resin molded product.

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