WO2011155572A1

WO2011155572A1 - Water saving implement

Info

Publication number: WO2011155572A1
Application number: PCT/JP2011/063283
Authority: WO
Inventors: 裕道脇
Original assignee: 土井内数実
Priority date: 2010-06-11
Filing date: 2011-06-09
Publication date: 2011-12-15
Also published as: TW201211356A; JP2011256669A

Abstract

Disclosed is a water saving implement provided with a casing (11) one end of which constitutes an opening for installation in a water feed inlet (3), and the other end of which constitutes a water discharge opening (13) which discharges flowing water; a constriction member (21) wherein there is formed a first hole section (24) that constricts, in the casing (11), the flowing water fed from the water feed inlet (3); and a nozzle member (31) such that one surface thereof constitutes a water discharge surface (31a) which faces the water discharge opening (13), that a second hole section (33) which connects to the first hole section (24) is formed on the opposite side to the water discharge surface (31a), and that furthermore, a plurality of water discharge holes (36) are formed through which the water flowing from the second hole section (33) is discharged from the discharge surface (31a). Either one of the first hole section (24) and the second hole section (33) rotates with respect to the other, with the consequence that the total area of the unblocked portions of the first hole section (24) and the second hole section (33) undergoes a change, resulting in the water amount being adjusted.

Description

Water saving equipment

The present invention relates to a water-saving device that is attached to a water supply port such as a faucet and that can freely adjust the water discharge amount.
This application claims priority on the basis of Japanese Patent Application No. 2010-134176 filed on June 11, 2010 in Japan, and is incorporated herein by reference. Is done.

The present applicant has previously proposed a water-saving device described in Patent Document 1 below. In this water-saving device, a decompression piece and a water-saving piece are arranged in this order in the casing, the pressure of the flowing water from the faucet is reduced by the pressure reduction piece, and water is retained in the space between the pressure reduction piece and the water-saving piece. The water is discharged from the water discharge hole of the water-saving top. The decompression piece also functions as a throttle member that squeezes running water from the faucet, and determines the amount of water supplied to the water discharge hole.

Further, in the water-saving device of Patent Document 1, water is saved by adjusting the water pressure, and the water pressure is reduced, so that the water flow discharged from the discharge hole is scattered and the surroundings are prevented from being soiled. I have to.

International Publication No. 2009/044703

By the way, the water pressure at the faucet varies depending on the water supply equipment, floor number, etc. of the building and is not the same. Also, the required amount of water and water pressure differ depending on the use, such as whether it is a faucet for a kitchen facility or a toilet faucet. Furthermore, the preference of the amount of water from the faucet and the water pressure varies depending on the user.

In the water-saving device according to one embodiment described in Patent Document 1 described above, in order to meet such a demand, various types of decompression frames are prepared in advance, and a desired decompression frame is selected from the prepared decompression frames. There is a need to. The operation of selecting the decompression piece according to the construction site is an operation that requires skill, and the replacement operation of the decompression piece requires a disassembly and assembly of the water-saving device, which is troublesome. In general, the installation work of the water-saving device is in a short period of time as possible because the facility is in operation.

Also, in order to prevent water discharged from the discharge hole from being scattered, control of the discharge direction in addition to the water pressure is important in relation to the water pressure and the amount of water. For example, when water is discharged to the wash basin of the vanity, if the water pressure is high and the amount of water is too large, there is a possibility that water droplets may be scattered outside the wash basin. In particular, when water is discharged toward the top of the basin, water droplets are likely to scatter out of the basin.

The object of the present invention is to provide a water-saving device that can easily adjust the amount of water discharged.

Another object of the present invention is to provide a water-saving device that can easily adjust the water discharge direction while limiting the amount of water discharged.

In order to solve the above-described problems, a water-saving device according to the present invention includes a substantially cylindrical casing having a mounting opening that can be attached to a water supply port, and a water discharge side opening that opens as a water discharge side, and In the casing, there is a throttle member formed with a first hole for restricting the water flow supplied from the water supply port, and a water discharge surface facing the water discharge side opening, and the first surface on the opposite side of the water discharge surface. And a nozzle member through which a plurality of water discharge holes for discharging the water flow from the second hole portion from the water discharge surface are formed.

Rotating the first hole and the second hole relative to each other changes the amount of displacement between the first hole and the second hole, thereby adjusting the amount of water discharged. That is, it is preferable that the first hole and the second hole are configured to overlap and communicate with each other.

Furthermore, the water discharge hole may be penetrated around the water discharge surface. Furthermore, a space portion is formed between the throttle member and the nozzle member, where the water flow abuts and the pressure is reduced before the water flow from the second hole reaches the water discharge hole. Good to be.

Furthermore, a projection is formed on one of the diaphragm member and the nozzle member, and a plurality of recesses are formed on the other to selectively engage the projection, and the diaphragm member and the nozzle member are By the relative rotation, the projection may selectively engage with the recess, and the set state of the deviation amount between the first hole and the second hole may be kept constant.

Further, the second hole portion may be formed in a water amount adjusting body that is rotatably attached to the nozzle member.

Further, the nozzle member is formed with an annular water discharge hole array formed by the plurality of water discharge holes, and the throttle member selectively closes one of the water discharge holes. The nozzle member is rotatable with respect to the throttle member, and the nozzle member is rotated to turn either the quasi-water-saving position where all the water discharge holes are opened or the water discharge holes. May be switched to a water-saving position that is closed by the closing protrusion. Preferably, the nozzle member is formed in a plurality so that the annular water discharge hole row forms a concentric circle, and by rotating, any one of the annular water discharge hole rows is closed by the closing protrusions of the throttle member. To be.

Furthermore, a packing disposed in the casing is provided, and the assembly of the throttle member and the nozzle member has a substantially hemispherical shape in which the outer surface of the assembly includes the largest diameter portion of the sphere, and the packing A surface in contact with the substantially hemispherical outer surface of the assembly forms a substantially spherical seating surface corresponding to the substantially hemispherical outer surface of the assembly, and the assembly of the water discharge side opening The abutting inner peripheral portion has an inner diameter portion smaller than the maximum outer diameter of the assembly, and the assembly has the substantially spherical shape of the packing so that the water discharge surface faces the outside from the water discharge side opening. It may be arranged so as to be slidable with respect to the seat surface, and the angle of the water discharge surface may be variable. In this case, the inner peripheral portion of the water discharge side opening that is in contact with the assembly may form a substantially spherical seating surface corresponding to the substantially hemispherical outer surface of the assembly. Further, the throttle member may be configured such that the movable range of the assembly is restricted by using the entrance of the water passage hole as a projecting portion and the projecting portion abutting against the inner peripheral wall of the packing. Further, the assembly of the throttle member and the nozzle member has a substantially hemispherical shape including a sphere having a maximum diameter portion and having a surface with a diameter equal to or less than the maximum diameter on the water discharge side opening side, and the maximum diameter or less The surface of the diameter may be the water discharge surface.

According to the present invention, when the first hole and the second hole rotate relative to each other, the shift amount between the first hole and the second hole changes, and the amount of water discharged is adjusted. It is configured to be able to. Therefore, the amount of discharged water can be easily adjusted. That is, it is possible to easily adjust the water discharge amount according to the place and application where the water-saving device is attached.

In addition, when the aperture member and the nozzle member rotate relative to each other, the protrusion provided on one side selectively engages with the plurality of recesses provided on the other side, and the first hole and the second hole The setting state of the amount of deviation from the section can be kept constant, and the operation of switching the water discharge amount can be easily performed.

Furthermore, an annular water discharge hole array formed by a plurality of water discharge holes is formed, and the water discharge amount can be easily adjusted by selectively closing any one of the water discharge holes with a closing protrusion.

Furthermore, the outer surface of the assembly of the throttle member and the nozzle member has a substantially hemispherical shape, and the surface in contact with the substantially hemispherical outer surface of the packing assembly is the substantially hemispherical outer surface of the assembly. By using the corresponding substantially spherical seating surface, the water discharge direction can be easily changed.

In addition, the adjustment of the water discharge direction can be realized by the following water-saving device configuration. That is, this water-saving device is supplied with water from the water supply opening in the substantially cylindrical casing having a mounting opening that can be attached to the water supply opening, a water discharge side opening that opens as the water discharge side, and the casing. A throttle member formed with a water passage hole for restricting the water flow, and a plurality of water discharge holes connected to the water passage hole, having a water discharge surface facing the water discharge side opening, and combined with the throttle member. It comprises a nozzle member that constitutes a solid body and a packing that is disposed in the casing and ensures water tightness with the assembly and water tightness with the water supply port. And the outer surface of the said assembly comprised including the said aperture member and the said nozzle member makes a substantially hemispherical shape. The surface of the packing that contacts the substantially hemispherical outer surface of the assembly forms a substantially spherical seat corresponding to the substantially hemispherical outer surface of the assembly. The inner peripheral portion of the water discharge side opening that contacts the assembly has an inner diameter smaller than the maximum outer diameter of the assembly. Thus, the assembly can be slidably disposed with respect to the substantially spherical seating surface of the packing so that the angle of the water discharge surface can be easily changed. And even when the water pressure is increased while saving water, by adjusting the discharge direction, it is possible to prevent water discharge and water droplets from splashing out of the washbasin and surrounding the washbasin.

FIG. 1 is an exploded cross-sectional view of a water-saving device to which the present invention is applied. FIG. 2 is a cross-sectional view of a water-saving device to which the present invention is applied. 3A and 3B are views showing the diaphragm member, where FIG. 3A is a plan view, FIG. 3B is a side view, FIG. 3C is a cross-sectional view, and FIG. 4A and 4B are diagrams showing the nozzle member, in which FIG. 4A is a plan view, FIG. 4B is a side view, FIG. 4C is a cross-sectional view, and FIG. FIG. 5 is a side view in which the diaphragm member and the nozzle member are combined and the diaphragm member is shown in cross section. FIG. 6 is a plan view showing the degree of overlap between the first hole of the throttle member and the second hole of the nozzle member, where (A) shows a slightly opened state and (B) is further closed. The state is shown, (C) shows the most closed state, and (D) shows the open state equivalent to (B) with the opening amount increasing again. FIG. 7 is an exploded cross-sectional view of a water-saving device that is a modification of the present invention. FIG. 8 is a cross-sectional view of a position where there is a water discharge hole in the outer peripheral water discharge hole row and a water discharge hole in the inner peripheral water discharge hole row of the water-saving device according to the modified example. FIG. 9 is a cross-sectional view of a position where only the water discharge holes of the outer peripheral water discharge hole row of the water-saving device according to the modified example are present. 10A and 10B are views showing a casing, in which FIG. 10A is a plan view, FIG. 10B is a cross-sectional view, and FIG. 10C is a bottom view. 11A and 11B are views showing the diaphragm member, where FIG. 11A is a plan view, FIG. 11B is a cross-sectional view, and FIG. 11C is a bottom view. 12A and 12B are views showing the nozzle member, in which FIG. 12A is a plan view, and FIG. 12B is a cross-sectional view taken along the line AA ′ at a position where water discharge holes of the outer peripheral water discharge hole row and water discharge holes of the inner peripheral water discharge hole row are present (C) is a cross-sectional view along the line BB ′ at a position where only the water discharge holes of the outer peripheral water discharge hole row are present, and (D) is a bottom view. FIG. 13 is a cross-sectional view along the inner circumferential water discharge hole row showing the relationship between the closing protrusion and the engaging recess, (A) shows a state where the closing protrusion closes the water discharging hole, and (B) shows the water discharging hole. Indicates the opened state. FIG. 14 is a view showing a water amount adjusting body, in which (A) is a plan view, (B) is a sectional view, and (C) is a side view. FIG. 15 is a plan view showing the degree of overlap between the first hole of the throttle member and the second hole of the water amount adjusting body, (A) shows a slightly opened state, and (B) is further closed. (C) shows the most closed state, and (D) shows the opened state equivalent to (B) with the opening amount increasing again. 16A and 16B are views showing the packing, in which FIG. 16A is a plan view, FIG. 16B is a sectional view, and FIG. 16C is a bottom view. FIG. 17 is a cross-sectional view showing a state in which the water-saving device to which the present invention is applied discharges water only from the outer peripheral water discharge hole row, where (A) discharges water directly below, and (B) discharges water toward the left side in the figure. (C) shows a state where water is discharged toward the right side in the figure. FIG. 18 is a cross-sectional view showing a state in which the water-saving device to which the present invention is applied discharges water from the outer peripheral and inner peripheral water discharge hole arrays, (A) shows a state of discharging water directly below, and (B) shows the state on the left side A state in which water is discharged toward the water, (C) shows a state in which water is discharged toward the right side in the figure.

Hereinafter, a water-saving device to which the present invention is applied will be described with reference to the drawings.

[overall structure]
As shown in FIGS. 1 and 2, a water-saving device 1 to which the present invention is applied discharges water by a casing 11 attached to a faucet 2 of a water supply, a throttle member 21 that restricts the amount of water supplied from the faucet 2, and water. And a nozzle member 31.

[Description of casing]
As shown in FIGS. 1 and 2, the casing 11 is formed in a cylindrical shape, one end is a mounting opening 12 that is attached to the water supply port 3 such as the faucet 2, and the other end discharges a water flow. The water discharge side opening 13 is a side opening. A thread groove 12 a is formed on the inner peripheral surface of the mounting opening 12, and the casing 11 is attached to the faucet 2 or the like by being fastened to the threaded portion of the faucet 2. Of course, the formation site of the screw groove 12a is not limited to the inner peripheral surface of the mounting opening 12, but may be, for example, the outer peripheral surface, and means for attaching the casing 11 to the water supply port 3 is limited to the screw groove. Not a thing.

In the space in the casing 11, the above-described throttle member 21 and the nozzle member 31 are built. A mounting recess 14 for mounting the packing 14a is formed below the screw groove 12a. The packing 14a is for preventing water leakage between the faucet 2 and the casing 11, and is formed of, for example, a ring-shaped rubber packing. In the present invention, packing is not an indispensable member. For example, the throttle member 21 may be configured so as to ensure water tightness so as to exhibit an effect equivalent to packing. The packing 14a is attached to the mounting recess 14, and when the thread groove 12a is tightened to the threaded portion of the faucet 2, it is pressed against the faucet 2 to ensure water tightness between the faucet 2 and the casing 11 and prevent water leakage. To do.

Also, an attachment step 15 for attaching the nozzle member 31 is formed on the inner peripheral surface of the casing 11 on the water discharge side opening 13 side. A nozzle member 31 is engaged with the mounting step portion 15 to prevent the nozzle portion 31 from falling off the water discharge side opening 13. The throttle member 21 is disposed on the nozzle member 31 in the casing 11.

[Explanation of diaphragm member]
As shown in FIGS. 1 to 3, the diaphragm member 21 is formed in a substantially cylindrical shape, and

flange portions

22 and 23 are formed on the top and bottom. The throttle member 21 is formed with a first hole portion 24 serving as a water passage hole penetrating in the thickness direction at a substantially central portion of the upper surface where the upper flange 22 is provided. Here, the first hole portions 24 are provided at four equally spaced intervals in a quadrangular top position so that the water flow is stable. In addition, the 1st hole 24 is not specifically limited to this example, For example, if it is comprised so that the water flow of each hole may become stable, a number, a shape, and a size will be specifically limited. It is not a thing. The plurality of first holes 24 limit the flow rate of water supplied from the water supply port 3 of the faucet 2.

The first hole 24 is not formed over the entire thickness direction, but is formed closer to the mounting opening 12, and the diaphragm member 21 has a plurality of first holes 24. A substantially cylindrical connecting recess 25 is formed continuously open at the center of the downstream flange 23. The cylindrical portion 32 of the nozzle member 31 is fitted into the connection recess 25.

A bottomed annular recess 26 is formed around the plurality of first holes 24. In the present invention, the annular recess 26 is not necessarily required. However, when the diaphragm member 21 is formed by resin molding, material saving can be achieved and deterioration of dimensional stability due to molding can be suppressed. It becomes possible.

On the other flange portion 23, a spacer protrusion 27 protruding downward is formed in an annular shape on the outer peripheral portion. The spacer protrusion 27 positions the nozzle member 31 disposed below the throttle member 21 and forms a space 28 for reducing the pressure between the throttle member 21 and the nozzle member 31, while the throttle member 27 It is configured to ensure water tightness around the joint between the nozzle 21 and the nozzle member 31 and to prevent water leakage from around the contact portion between the nozzle member 21 and the casing 11.

Also, a protrusion 29 is formed on the tip surface of the spacer protrusion 27. The protrusion 29 selectively engages with a plurality of recesses formed in the nozzle member 31 described later, and can be adjusted stepwise while visually recognizing the rotational position of the nozzle member 31 relative to the diaphragm member 21.

[Description of nozzle member]
As shown in FIGS. 1, 2, and 4, the nozzle member 31 has a substantially columnar shape, and a cylindrical portion 32 is formed at the center of the upper surface. Of course, the cylindrical portion 32 formed at the center of the upper surface of the nozzle member does not necessarily have a cylindrical shape. For example, the cylindrical portion 32 may have a polygonal cylindrical shape, and the first hole portion and the second hole portion. As long as a certain level of watertightness can be obtained around the contact portion, there is no particular limitation. A plurality of second hole portions 33 corresponding to the plurality of first hole portions 24 of the throttle member 21 are formed in the cylindrical portion 32. Each second hole 33 is formed such that an inlet 33a connected to the first hole 24 is formed on the distal end surface of the cylindrical portion 32, an outlet 33b is formed on a side surface, and the flow path is substantially L-shaped. Has been.

In addition, the 2nd hole part 33 is not specifically limited to this example, For example, if it is comprised so that the water flow of each hole part may become stable, a number, a shape, and a size will be specifically limited. It is not a thing.

The cylindrical portion 32 is fitted into a connection concave portion 25 formed on the downstream side of the throttle member 21. Accordingly, the first hole 24 of the throttle member 21 and the second hole 33 of the nozzle member 31 are overlapped and connected in the water flow direction. Therefore, the water that has passed through the first and

second holes

24 and 33 flows out from the outlet 33b to the upper surface of the nozzle member 31.

An engagement step portion 34 is formed on the outer peripheral portion of the upper surface of the nozzle member 31. The engaging step 34 is engaged with a spacer protrusion 27 formed in an annular shape on the lower surface of the throttle member 21. Thereby, the nozzle member 31 is positioned and attached in a state where the space portion 28 is created on the downstream side of the throttle member 21. Further, the engagement step portion 34 ensures water-tightness between the throttle member 21 and the nozzle member 31 by engaging the spacer protrusion 27 of the throttle member 21, and the nozzle with respect to the throttle member 21. The member 31 functions as a guide portion when rotating around the cylindrical portion 32 fitted in the connection recess 25 of the aperture member 21.

When the outer shape of the cylindrical portion 32 is a polygonal cylinder and the inner shape of the connection recess 25 of the throttle member 31 is formed in a polygonal column corresponding to this, the relative rotation between the throttle member 21 and the nozzle member 31 is reduced. Each time adjustment is performed, they must be separated from each other, and there is an effect that no mutual displacement occurs unless they are separated. Therefore, in this case, there is no possibility that the water discharge amount may change due to an unintended action from the outside.

The portion where the engaging step portion 34 is formed is a flange portion 35, and this flange portion 35 is supported from below by the mounting step portion 15 of the casing 11.

The nozzle member 31 has a plurality of water discharge holes 36 extending from the upstream surface to the downstream surface serving as the water discharge surface 31a. The water discharge hole 36 is formed inside the engaging step portion 34 and is formed at a position away from the outlet 33 b of the second hole portion 33. The water discharge holes 36 are formed in a row on the outer peripheral side of the nozzle member 31, but the number of rows may be a plurality of rows such as two rows or three rows.

The downstream surface of the nozzle member 31, that is, the water discharge surface 31 a facing the outside from the water discharge side opening 13 of the casing 11 may be formed flat, but here, the cross-section where the center is most depressed draws a cycloid curve. It is formed with a concave portion such as a curved surface. When the water discharge surface 31a is formed as a curved surface that draws a cycloid curve, the water flow discharged from the water discharge hole 36 is slightly spread, and the entire water flow discharged from the water discharge side opening 13 of the casing 11 can be made thick.

Also, a plurality of recesses 37, here four, are formed in the flange portion 35 of the nozzle member 31. The concave portion 37 is formed by opening the upstream surface and the side surface of the flange portion 35, and is formed so that the depth from the upstream surface is different. Specifically, the concave portion 37a on one end side is formed to be the shallowest, the concave portion 37b and the concave portion 37c are sequentially deepened, and the concave portion 37d is formed to be the deepest. The protrusions 29 on the front end surface of the spacer protrusion 27 of the throttle member 21 are selectively engaged with the recesses 37a to 37d. When the protrusion 29 moves to the adjacent concave portion 37, a click feeling is generated when climbing between the concave portions 37 so that the user can recognize how many nozzle members 31 have been rotated. Further, by providing an opening so that the protrusion 29 and the recess 37 face the outside in the circumferential direction of the casing 11, the user can visually confirm which recess the protrusion 29 is engaged with. Can be.

It should be noted that any one of the diaphragm member 21 and the nozzle member 31 may be relatively rotated, and the diaphragm member 21 may be rotated.

[Assembly of water-saving equipment]
The water-saving device 1 configured as described above is assembled as follows. First, as shown in FIG. 5, the throttle member 21 and the nozzle member 31 are fitted with the cylindrical portion 32 of the nozzle member 31 in the connection recess 25 of the throttle member 21, and the spacer protrusion 27 of the throttle member 21 is The nozzle members 31 are combined by engaging with the engaging step 34. At this time, the protrusion 29 of the aperture member 21 is engaged with any one of the recesses 37.

Thereafter, the nozzle member 31 combined with the throttle member 21 is attached so as to be supported from the lower side in the casing 11 by engaging the flange portion 35 with the attachment step portion 15 in the casing 11. .

Next, in the casing 11, a ring-shaped packing 14 a is engaged with the mounting recess 14 on the mounting opening 12 side. Here, the packing 14 a is provided separately from the throttle member 21, but may be provided integrally with the throttle member 21. Thereafter, the casing 11 is screwed to the faucet 2. The packing 14a presses the faucet 2 to ensure water tightness between the faucet 2 and the casing 11 to prevent water leakage.

[Operation of water-saving equipment]
In the water-saving device 1 as described above, when water is supplied from the water supply port 3 of the faucet 2, the water is throttled through the first hole 24 of the throttle member 21 and the second hole 33 of the nozzle member 31. It is supplied to the space 28 between the member 21 and the nozzle member 31. The space 28 is supplied with the amount of water reduced by the first and

second holes

24 and 33. Then, the direction of the water flow is bent at the second hole 33, and the water flow flowing out from the outlet 33b of the second hole 33 abuts with each other in the space 28, whereby the water pressure is reduced. Is done. Thereafter, the decompressed water is discharged from the water discharge hole 36 of the nozzle member 31.

-Water quantity adjustment Water quantity adjustment is performed by rotating the nozzle member 31 with respect to the throttle member 21. Specifically, when the first hole 24 of the throttle member 21 and the inlet 33a of the second hole 33 most overlap, for example, the first hole 24 and the inlet 33a of the second hole 33 Is completely the same when the aperture is fully open and the amount of water is the largest. As shown in FIGS. 6A and 6B, when the degree of overlap between the first hole 24 and the inlet 33a of the second hole 33 is reduced, the flow path is reduced accordingly. The amount of water will be reduced. In FIG. 6C, the first hole 24 and the inlet 33a of the second hole 33 are shifted most, and the amount of water is reduced most. Further, when the nozzle member 31 is rotated relative to the aperture member 21, the opening amount increases again as shown in FIG. 6D, and the opening amount becomes approximately the same as that in FIG. 6B. The opening amount changes in steps.

The stepwise switching of the opening amount as shown in FIG. 6 is performed by rotating the nozzle member 31, and the protrusion 29 of the throttle member 21 is the shallowest of the nozzle member 31 in the state where the throttle is most open. Engage with the recess 37a. As the diaphragm is sequentially closed, the protrusion 29 is sequentially engaged with the

recesses

37b and 37c, and as shown in FIG. 6C, when the diaphragm is closed most, it is engaged with the deepest recess 37d. As described above, the setting state after the water amount adjustment is held by the protrusion 29 selectively engaging any one of 37a-37d.

The method for rotating the nozzle member 31 is not particularly limited, and the nozzle member 31 may be rotated with respect to the throttle member 21 in a state where the water-saving device 1 is disassembled, and it is not necessary to disassemble the nozzle member 31. In a state after assembly, the nozzle member 31 facing the water discharge side opening 13 of the casing 11 may be rotated using a finger or a jig. Furthermore, the nozzle member 31 may be provided with an operation projection facing the outside from the casing 11, and the nozzle member 31 may be rotated using the operation projection.

[Effect of water-saving equipment]
According to the water-saving device 1 as described above, the degree of overlap between the first hole 24 and the inlet 33a of the second hole 33 is easily adjusted by relatively rotating the nozzle member 31 and the throttle member 21. be able to. That is, the adjustment of the amount of water can be performed only by rotating the nozzle member 31. As described above, the water-saving device 1 can easily adjust the water discharge amount appropriately according to the place and application where the water-saving device 1 is attached. Further, since the water discharge amount can be easily adjusted, there is no need to prepare a large number of decompression frames and the like for adjusting the water discharge amount as in the prior art. In addition, by selectively engaging the protrusions 29 of the throttle member 21 with the recesses 37 of the nozzle member 31, the throttle adjustment operation can be performed stepwise or continuously, and the water amount adjustment operation can be easily performed. Can do.

It should be noted that when the diaphragm adjustment is not performed step by step, the protrusion 29 and the recess 37 may be omitted. In particular, when the outer shape of the cylindrical portion 32 is a polygonal cylinder and the inner shape of the connection recess 25 of the diaphragm member 31 is formed in a polygonal column corresponding to the outer shape, misalignment hardly occurs. 37 may not be provided. Further, the intervals between the plurality of recesses 37 may not be constant.

[Variation of water-saving equipment]
Hereinafter, a water-saving device as a modification of the present invention will be described with reference to the drawings.

[overall structure]
As shown in FIGS. 7 to 9, the water-saving device 101 to which the present invention is applied restricts the amount of water discharged from the casing 111 attached to the water supply port 103 of the tap 102 and the water supply port 103 of the tap 102. A throttle member 121, a nozzle member 131 that discharges water, and a watertight packing 151 that is disposed in the casing 111 and prevents water leakage between the faucet 102 and the casing 111 are provided.

[Description of casing]
As shown in FIGS. 7 to 10, the casing 111 is formed in a cylindrical shape, and has one end serving as a mounting opening 112 that is attached to the water supply port 103 such as the faucet 102, and the other end that discharges water. It becomes the water discharge side opening part 113 comprised as a side. A thread groove 112 a is formed on the inner peripheral surface of the mounting opening 112, and the casing 111 is attached to the faucet 102 or the like by being fastened to the threaded portion of the faucet 102. Of course, the formation site of the screw groove 112a is not limited to the inner peripheral surface of the attachment opening 112, but may be, for example, the outer peripheral surface, and the means for attaching the casing 111 to the water supply port 103 is limited to the screw groove. It is not what is done.

In the space in the casing 111, the above-described throttle member 121, nozzle member 131, and packing 151 are incorporated. A step 114 is formed in the vicinity of the water discharge side opening 113, and a tip portion of the packing 151 located on the water discharge side opening 113 side is engaged. The packing 151 is attached in a state of being positioned in the casing 111 by engaging a tip portion located on the water discharge side opening 113 side with the stepped portion 114.

The water discharge side opening 113 has a spherical surface support portion 113a that supports an assembly 154 of a throttle member 121 and a nozzle member 131, which will be described later, and further has a water discharge port 113b that increases in diameter toward the tip side. The spherical support portion 113a has a curved surface having the same curvature as the curved surface of the enlarged diameter portion 153 of the packing 151, which will be described later, and supports the assembly 154 in the vicinity of the water discharge surface 131a of the nozzle member 131, and the assembly 154 has a water discharge side opening. Do not fall off from the portion 113. That is, the spherical surface support portion 113a has a diameter portion smaller than the maximum diameter of the assembly 154, and is configured as a spherical seat surface convex outward. In addition, the water discharge port 113b is formed in a shape whose diameter is increased outward, so that the water flow discharged from the water discharge surface 131a of the nozzle member 131 when the water discharge surface 131a is inclined allows the water discharge side opening. The periphery of 113 is not touched.

[Explanation of diaphragm member]
As shown in FIGS. 7 to 9 and 11, the throttle member 121 has a substantially bowl shape, and a protrusion 122 is formed on the top of the outer curved surface. The protruding portion 122 has a water passage hole 123 penetrating in the thickness direction at the center. The water passage hole 123 has a substantially conical ridge bottom portion 123a formed in a convex shape toward the downstream side. The ridge bottom portion 123a includes a plurality of first holes penetrating from the upstream side toward the downstream side. The hole 124 is perforated. The plurality of first hole portions 124 are perforated at equal intervals by holes of the same size, and here, four first hole portions 124 are provided at four equal intervals and arranged in a square top position.

In addition, the 1st hole 124 is not specifically limited to this example, For example, if it is comprised so that the amount of water of each hole may become equal, a number, a shape, and a size will be specifically limited. It is not a thing. The water passage hole 123 is configured by a plurality of first hole portions 124, thereby restricting the flow rate of water supplied from the water supply port 103 of the faucet 102 so as to be adjustable.

In addition, a plurality of closing protrusions 125 are formed around the water passage hole 123 on the bottom surface opposite to the outer curved surface, and blocking means for controlling the amount of water discharged from the nozzle member 131 described later. Is done. The closing protrusions 125 are formed annularly at equal intervals around the water passage hole 123. The closing protrusion 125 selectively closes the water discharge hole 132 of the nozzle member 131 described below.

Furthermore, an annular guide piece 126 that is continuous with the curved surface is formed on the bottom surface. A plurality of guide protrusions 126 a are formed at the distal end portion of the guide piece 126 so as to protrude inward. The guide protrusion 126a engages with a guide groove 133 of the nozzle member 131 described below, so that the nozzle member 131 can rotate with respect to the aperture member 121.

[Description of nozzle member]
As shown in FIGS. 7 to 9 and 12, the nozzle member 131 has a substantially cylindrical shape and is formed so that the outer peripheral surface is curved with the same curvature as the curved surface of the diaphragm member 121. The nozzle member 131 has a large number of water discharge holes 132 penetrating in the thickness direction. The water discharge hole 132 has a diameter of a little less than 1 mm, for example. The bottom surface of the nozzle member 131 is a water discharge surface 131a and is formed flat. Specifically, in the nozzle member 131, an annular outer peripheral water discharge hole row 132a and an inner peripheral water discharge hole row 132b formed by a plurality of water discharge holes 132 are formed concentrically. The outer peripheral water discharge hole row 132 a is a portion that is constantly discharged, and the inner peripheral water discharge hole row 132 b is selectively closed by the closing protrusion 125 of the throttle member 121.

In addition, the hole diameter of the water discharge hole 132 which comprises the inner periphery water discharge hole row | line | column 132b and the hole diameter of the water discharge hole 132 which comprises the outer periphery water discharge hole row | line | column 132a may be the same, and the inner periphery water discharge hole row | line | column 132b is comprised. The discharge holes 132 may be larger, and the water discharge holes 132 constituting the inner peripheral water discharge hole row 132b may be smaller.

Further, the water discharge surface 131a may be formed as a concave portion such as a curved surface in which a cross section with the most depressed center draws a cycloid curve, in addition to a flat surface. When the water discharge surface 131a is formed in a curved surface that draws a cycloid curve, the water flow discharged from the water discharge hole 132 is slightly spread, and the entire water flow discharged from the water discharge side opening 113 of the casing 111 can be made thick.

Specifically, in the inner peripheral water discharge hole row 132b, as shown in FIG. 13, a first engagement recess 135 in which the closing protrusion 125 is engaged with the inlet of each water discharge hole 132 constituting the inner peripheral water discharge hole row 132b. Is formed. In addition, a second engaging recess 136 is formed between the adjacent water discharge holes 132 to which the closing protrusion 125 is engaged. As shown in FIG. 13A, when the closing protrusion 125 is engaged with the first engaging recess 135 continuous with the water discharge hole 132, the water discharge hole 132 is closed and the inner peripheral water discharge hole row 132b Water is not discharged (water saving position). On the other hand, as shown in FIG. 13B, when the closing protrusion 125 is engaged with the second engagement recess 136 between the water discharge holes 132, 132, the water discharge hole 132 is opened, and the inner peripheral water discharge hole. Water is discharged from the row 132b (quasi-water saving position).

A guide groove 133 that engages with the guide protrusion 126a of the aperture member 121 is formed at the upper end of the outer periphery of the nozzle member 131. When the guide protrusion 126 a is engaged with the guide groove 133, the nozzle member 131 rotates with respect to the diaphragm member 121. Then, when the nozzle member 131 rotates with respect to the throttle member 121, the state where water is not discharged from the inner peripheral water discharge hole row 132b shown in FIG. 13A and the inner peripheral water discharge hole row 132b shown in FIG. 13B. The state where water is discharged is also switched.

In the inner circumferential water discharge hole row 132b, the number of the first engagement recesses 135 provided between the adjacent water discharge holes 132 may be one or plural. Further, the number and interval of the blocking protrusions 125 are determined by the number of steps of switching the water discharge amount discharged from the inner peripheral water discharge hole row 132b, and are not particularly limited in the present invention. Further, the number of annular water discharge hole rows provided concentrically is not limited to two, and may be one or three or more. When there is one discharge hole array, some water discharge holes are selectively closed by the closing protrusions. Further, when three or more water discharge hole rows are provided, the water discharge holes of all or some of the water discharge hole rows may be selectively closed by the closing protrusions.

At the center of the nozzle member 131, a mounting hole 134 is formed in which a water amount adjusting body 141 as a water amount adjusting means for adjusting the opening amount of the water passage hole 123 of the throttle member 121 is attached. The attachment hole 134 is a through-hole penetrating in the thickness direction. A cylindrical portion 134 a is formed, and a diameter-expanded portion 134 b is formed on the upper surface side of the nozzle member 131. In the boundary portion between the cylindrical portion 134a and the enlarged diameter portion 134b, a vertical concavo-convex groove 134c is formed in the circumferential direction, and serves as an anti-slip of rotation of the water amount adjusting body 141.

[Explanation of water volume regulator]
As shown in FIGS. 7 to 9 and 14, the water amount adjusting body 141 has a flow path forming portion 142 in which a flow path is formed and a fitting portion 143 to be inserted into the mounting hole 134 of the nozzle member 131. In addition, the flow path forming portion 142 has a shape that expands with respect to the fitting portion 143. A plurality of second hole portions 144 corresponding to the first hole portions 124 in the water passage holes 123 of the throttle member 121 are formed in the flow path forming portion 142. The plurality of second hole portions 144 correspond to the number of the first hole portions 124, and holes of the same size are provided at equal intervals, in this case, at four equal intervals and arranged at a square top position. It has been. Each of the second hole portions 144 is formed by a substantially L-shaped channel that opens on the upper surface and the side surface, and an inlet 144a is formed on the upper surface, and an outlet 144b is formed on the side surface. The second hole 144 is not particularly limited to this example. For example, the number, shape, and size of the second hole 144 are not particularly limited as long as the water flow in each hole is stabilized. Absent.

When the first hole 124 of the throttle member 121 and the inlet 144a of the second hole 144 of the water amount adjusting body 141 are most overlapped, for example, the first hole 124 and the second hole of the water amount adjusting body 141 When the inlet 144a of the part 144 completely coincides, the throttle is most open, and the amount of water discharged is the largest. Then, as shown in FIGS. 15A and 15B, when the degree of overlap between the first hole 124 and the inlet 144a of the second hole 144 is reduced, the flow path is narrowed accordingly. The amount of water discharged will be reduced. In FIG. 15C, the first hole portion 124 and the inlet 144a of the second hole portion 144 are shifted most, and the amount of water discharged is most reduced. Further, when the water amount adjusting body 141 is rotated relative to the throttle member 121, the opening amount increases again as shown in FIG. 15D, and the opening amount is about the same as that in FIG. 15B. The quantity is configured to change stepwise.

The upper surface of the flow path forming portion 142 where the inlet 144a is formed is formed so that the central portion is the lowest, and is positioned so that the rotation center axis of the water amount adjusting body 141 does not shift or shake, and the throttle member The water amount adjusting body 141 is constantly urged by the outward urging force of the ridge bottom portion 123a of 121, and the contact between the flow path forming portion 142 and the enlarged diameter portion 134b in the mounting hole 134 drilled in the center of the nozzle member 131. The water amount adjuster 141 is configured to prevent unintentional rotation while enhancing the water tightness of the surface.

Note that the number of the first and

second hole portions

124 and 144 is not particularly limited. Further, the first and

second holes

124 and 144 are preferably provided so as to form a flow path that branches into two or more, and more preferably, the tops of the squares are equally spaced in four directions as described above. It is good to provide it by position coordination. Further, the shape of the first and

second holes

124 and 144 is not limited to a circle, and may be a quadrangle such as a rhombus or other polygons. That is, the number, shape, and size of the second hole 144 are not particularly limited as long as the water flow in each hole is stabilized, for example.

The flow path forming part 142 as described above is configured to be fitted to the enlarged diameter part 134b in the mounting hole 134 in the center of the nozzle member 131, and to obtain water tightness of these contact surfaces. . The fitting part 143 integrated with the flow path forming part 142 is fitted into the cylindrical part 134 a of the mounting hole 134 in the center of the nozzle member 131. The fitting portion 143 is formed to have a length that slightly protrudes from the water discharge surface 131a of the mounting hole 134, and the tip end surface thereof is an arcuate surface to improve the touch. In addition, you may make it provide the groove | channel of the screw driver of "+" and "-" for rotating the water quantity adjustment body 141, etc. in the front end surface.

Further, at the boundary portion between the fitting portion 143 and the flow path forming portion 142, a concavo-convex portion 145 that engages with the concavo-convex groove 134c formed on the inner peripheral surface of the mounting hole 134 of the nozzle member 131 is formed. The concavo-convex portion 145 is engaged with the concavo-convex groove 134 c to prevent the water amount adjusting body 141 from slipping.

The water amount adjusting body 141 is attached to the nozzle member 131 by fitting the fitting portion 143 into the cylindrical portion 134a of the attachment hole 134 of the nozzle member 131 and pressing the flow path forming portion 142 to the enlarged diameter portion 134b. It is attached to the hole 134. Then, between the upper surface of the flow path forming portion 142 and the bottom surface of the nozzle member 131 on which the first hole portion 124 is formed, the closing protrusion 125 is the first engaging recess 135 or the second engaging recess 136. The space portion 146 is formed by hitting. In the space part 146, the water flow flowing out from the outlet 144b of the second hole part 144 of the water amount adjusting body 141 collides with each other to reduce the water pressure. When the water amount adjusting body 141 is attached to the attachment hole 134, the distal end portion of the fitting portion 143 protrudes from the water discharge surface 131 a of the nozzle member 131.

As shown in FIGS. 8 and 9, in order to adjust the flow rate, the concave and convex grooves 134 c and the concave and convex portions 145 are engaged by pressing and lifting the tip of the fitting portion 143 protruding from the water discharge surface 131 a. The water amount adjusting body 141 is rotated in the released state.

[Description of packing]
The packing 151 is, for example, a rubber packing, and as shown in FIGS. 7 to 9 and 16, the cylindrical portion 152 and the enlarged diameter portion 153 are integrally formed with the central axis aligned. The curved surface of the enlarged diameter portion 153 is a spherical seating surface corresponding to the curvature of the curved surface outside the diaphragm member 121 and the curvature of the outer peripheral surface of the nozzle member 131. When inserted into the casing 111, the distal end portion of the enlarged diameter portion 153 engages with a stepped portion 114 formed in the vicinity of the water discharge side opening 113 of the casing 111. Further, an engagement step portion 156 is formed on the outer peripheral surface of the tip portion of the cylindrical portion 152. For example, the tip of the faucet 102 is engaged with the engagement step portion 156. Thus, the packing 151 has a tip portion located on the water discharge side opening 113 side engaged with the step portion 114, and the faucet 102 is engaged and pressed against the engagement step portion 156, whereby the faucet 102 and the casing 111 are connected. Prevent water leaks in between.

As shown in FIGS. 7 to 9, the water amount adjusting body 141 is attached to the nozzle member 131, and the assembly 154 assembled to the throttle member 121 has a substantially hemispherical shape and slides on the spherical bearing surface of the enlarged diameter portion 153. It moves, and it is comprised so that the angle of the water discharge surface 131a of the nozzle member 131 can be changed. The outer corner portion composed of the cylindrical portion 152 and the enlarged diameter portion 153 of the packing 151 is engaged with the protruding portion 122 of the sliding assembly 154, that is, the protruding portion 122 of the throttle member 121, and the movable range is restricted. It becomes the regulation part 155 to do.

[Assembly of water-saving equipment]
The water-saving device 101 configured as described above is assembled as follows. First, as shown in FIG. 15, the degree of overlap between the first hole 124 of the throttle member 121 and the inlet 144 a of the second hole 144 of the water amount adjusting body 141 is adjusted in the mounting hole 134 of the nozzle member 131. Then, the water amount adjusting body 141 is attached. Next, the nozzle member 131 is combined with the throttle member 121 to form an assembly 154.

The assembly 154 is combined with the packing 151. Specifically, the cylindrical portion 152 of the packing 151 is combined with the expanded portion 153 of the packing 151 such that the protruding portion 122 of the throttle member 121 faces the cylindrical portion 152. Thereafter, the packing 151 combined with the assembly 154 is disposed in the casing 111. Specifically, the packing 151 is engaged with the stepped portion 114 at the distal end located on the water discharge side opening 113 side.

Thereafter, the casing 111 is attached to the faucet 102 or the like by tightening the thread groove 112a on the inner peripheral surface of the attachment opening 112 to the screw portion of the faucet 102. The packing 151 can prevent water leakage between the faucet 102 and the casing 111 when the faucet 102 is engaged and pressed against the engaging step portion 156.

[Operation of water-saving equipment]
In the water-saving device 101 as described above, when water is supplied from the water supply port 103 of the faucet 102, the water is supplied through the first hole 124 and the second hole of the water amount adjusting body 141 from the water passage hole 123 of the throttle member 121. It is supplied to the space portion 146 between the throttle member 121 and the nozzle member 131 through the portion 144. The space 146 is supplied with the amount of water discharged by the throttle member 121 or the like. The direction of the water flow is bent at the second hole 144, and the water flow flowing out from the outlet 144b of the second hole 144 collides with each other at the space 146, so that the water pressure is reduced. Is done. Thereafter, the decompressed water is discharged from the water discharge hole 132 of the nozzle member 131.

Adjustment of water discharge direction In the water-saving device 101 as described above, as shown in FIGS. 8 and 9, the assembly 154 formed by combining the nozzle member 131 with the throttle member 121 has a portion of the lower hemisphere attached to the upper hemisphere. A little larger than a perfect hemisphere. That is, the assembly 154 is a hemisphere including the maximum diameter R1 of the sphere including the assembly 154, and the diameter R2 of the water discharge surface 131a is slightly smaller than the maximum diameter R1. In the assembly 154, the outer surface of the throttle member 121 and the outer surface of the nozzle member 131 constitute a continuous substantially hemispherical outer surface.

The spherical surface constituting the diameter-enlarged portion 153 of the packing 151 and the spherical surface support portion 113a in the vicinity of the water discharge side opening 113 of the casing 111 form a continuous spherical surface corresponding to the substantially hemispherical surface formed by the outer surface of the assembly 154. It is a spherical bearing surface that allows sliding along with the rolling of the assembly 154.

In the present invention, since the assembly 154 can roll if at least the diameter-enlarged portion 153 of the packing 151 is a spherical seat surface, the spherical support portion 113a of the casing 111 is not necessarily a spherical seat surface. It is not necessary.

Furthermore, the diameter R3 of the spherical support 113a is smaller than the maximum diameter R1 of the assembly 154 so that the assembly 154 does not fall off the casing 111.

Therefore, for example, the assembly 154 can be freely tilted within a range until the protruding portion 122 of the throttle member 121 hits the restricting portion 155 of the packing 151 by pressing the water discharge surface 131a with a finger or the like. be able to. Further, when the water is being discharged, the throttle member 121 and the nozzle member 131 are pressed against the packing 151 by the internal pressure generated in the space inside the packing 151. Therefore, the adjusted inclination of the water discharge surface 131a does not shift during use.

17 (A) and 18 (A) show a state where the inclination of the water discharge surface 131a is 0 ° and the water discharge direction is vertical. FIGS. 17B and 18B show a state in which the water discharge surface 131a is tilted to the maximum. In this state, the protruding portion 122 of the throttle member 121 constituting the assembly 154 hits the restricting portion 155 of the packing 151 so that the water discharge surface 131a does not tilt any further. Further, FIG. 17C and FIG. 18C show a state in which the water discharge surface 131a is tilted to the maximum extent. Even in this state, the protruding portion 122 of the throttle member 121 constituting the assembly 154 abuts against the restricting portion 155 of the packing 151 so that the water discharge surface 131a does not tilt any further.

In addition, in performing the adjustment of the water discharge direction, the above-described water amount adjusting body 141 is not necessarily provided. If the water amount adjusting body 141 is not provided, the attachment hole 134 of the nozzle member 131 may not be provided. The assembly 154 may be a complete hemisphere.

-First water amount adjustment In the water-saving device 101, the degree of water saving can be adjusted by rotating the nozzle member 131 relative to the throttle member 121. Specifically, in this water-saving device 101, water is constantly discharged from the outer peripheral water discharge hole row 132a so that the discharged water flow always looks thick. On the other hand, in the inner peripheral water discharge hole row 132b, the water discharge holes 132 of the nozzle member 131 are selectively closed by the closing protrusions 125 of the throttle member 121. Specifically, as shown in FIGS. 13 (A) and 17 (A)-(C), when the closing protrusion 125 is engaged with the first engaging recess 135 continuous with the water discharge hole 132, the water discharge The holes 132 are closed, and water is not discharged from the inner circumferential water discharge hole row 132b (water saving position). On the other hand, as shown in FIGS. 13 (B) and 18 (A)-(C), when the closing protrusion 125 is engaged with the second engagement recess 136 between the water discharge holes 132, 132, the water discharge The holes 132 are opened, and water is discharged from the inner circumferential water discharge hole row 132b (quasi-water-saving position). That is, when the nozzle member 131 is in the quasi-water-saving position, the streamline from the water discharge surface 131a is double, and when it is in the water-saving position, the streamline is single.

In the water-saving device 101, when the nozzle member 131 is always in the water-saving position, water is discharged from the outer peripheral water discharge hole row 132a, and water is not discharged from the inner peripheral water discharge hole row 132b inside thereof. Therefore, in the water-saving device 101, it is possible to perform water-saving while making it apparent that the amount of water discharged has not been discharged from the inner peripheral water discharge hole row 132b and the amount of water discharged has decreased.

The method for rotating the nozzle member 131 is not particularly limited, and the nozzle member 131 may be rotated with respect to the throttle member 121 in a state where the water-saving device 101 is disassembled, and it is not necessary to disassemble it. In a state after assembly, the nozzle member 131 facing the water discharge side opening 113 of the casing 111 may be rotated using a finger or a jig. Furthermore, the nozzle member 131 may be provided with an operation projection facing the outside from the casing 111, and the nozzle member 131 may be rotated using the operation projection. Further, either one of the diaphragm member 121 and the nozzle member 131 is provided with a protrusion, and the other is provided with a plurality of recesses to which the protrusion is selectively engaged, so that the diaphragm member 121 and the nozzle member 131 rotate relative to each other. The relative positions of the throttle member 121 and the nozzle member 131 may be kept constant by selectively engaging the protrusions with the recesses. Further, the casing 111 may be provided with an opening so that it can be visually confirmed which concave portion is engaged with the protrusion, and the set state can be visually confirmed.

In addition, in performing this water-saving adjustment, the water amount adjusting body 141 described above is not necessarily provided. When the water amount adjusting body 141 is not provided, the attachment hole 134 of the nozzle member 131 may not be provided as described above.

-Second water amount adjustment In the water-saving device 101, the water discharge amount can be adjusted by rotating the water amount adjusting body 141. When the first hole 124 of the throttle member 121 and the inlet 144a of the second hole 144 of the water amount adjusting body 141 are overlapped most, the throttle is in the most open state, and the amount of water discharged is the largest. As shown in FIGS. 15A and 15B, when the degree of overlap between the first hole 124 and the inlet 144a of the second hole 144 is reduced, the flow path is reduced accordingly. The amount of water discharged will be reduced. In FIG. 15C, the first hole portion 124 and the inlet 144a of the second hole portion 144 are shifted most, and the amount of water discharged is most reduced. Further, when the water amount adjusting body 141 is rotated relative to the throttle member 121, the opening amount increases again as shown in FIG. 15D, and the opening amount is about the same as that in FIG. 15B. The amount is changed stepwise or continuously.

For example, in the state in which the water-saving device 101 is assembled, the water amount adjustment is performed by pressing and lifting the distal end portion of the fitting portion 143 protruding from the water discharge surface 131a so that the uneven groove 134c and the uneven portion 145 are engaged. Release or weaken and release, and in this released state, the water amount adjusting body 141 is rotated.

[Effect of water-saving equipment]
According to the water-saving device 101 as described above, the throttle member 121 and the nozzle member 131 are provided in the casing 111, so that the amount of water discharged can be reduced. Specifically, the water flow squeezed by the squeezing member is further adjusted to an appropriate water discharge amount and water force by the nozzle member 131 and discharged from the discharge hole arrays 132a and 132b. it can. Furthermore, the amount of discharged water supplied to the discharge hole arrays 132a and 132b can be adjusted by a simple operation from the outside by the water amount adjusting body 141, which makes it possible to finely adjust the water pressure and the amount of discharged water. Become.

In addition, the assembly 154 of the throttle member 121 and the nozzle member 131 is slidably mounted in the packing 151, and the angle of the water discharge surface 131a is variable. Therefore, the water discharge direction can be easily adjusted by a simple operation from the outside. Thus, even when the water pressure is increased while water is being saved, by adjusting the discharge direction, it is possible to prevent water droplets from splashing out of the washbasin and surrounding the washbasin. That is, in the water-saving device 101, the amount of water discharged and the direction of discharge can be easily fine-tuned so as to be easy to use within a range in which water discharge and water droplets do not scatter to the outside of the washbasin.

[Variation of water-saving equipment]
Although the water-saving device 1,101 to which the present invention is applied has been described above, the water-saving device 1,101 is an example of the present invention, and the water-saving device 1 is variously modified without departing from the spirit of the present invention. You may do it.

1 Water-saving device, 2 faucet, 11 casing, 12 mounting opening, 12a thread groove, 13 water discharge side opening, 14 mounting recess, 14a packing, 15 mounting step, 21 throttle member, 22, 23 flange, 24 first Hole part, 25 connection recess, 26 annular recess, 27 spacer protrusion, 28 space part, 29 protrusion, 31 nozzle member, 31a water discharge surface, 32 cylindrical part, 33 second hole part, 33a inlet, 33b outlet, 34 Engagement step, 35 flange, 36 water discharge hole, 37, 37-37d recess, 101 water saving device, 102 faucet, 111 casing, 112 mounting opening, 112a thread groove, 113 water discharge side opening, 113a spherical support, 113b Water outlet, 114 steps, 121 throttle member, 122 protrusion, 123 water passage, 23a Spout bottom part, 124 First hole part, 125 Blocking protrusion, 126 Guide piece, 126a Guide protrusion, 131 Nozzle member, 131a Water discharge surface, 132 Water discharge hole, 132a Outer peripheral water discharge hole line, 132b Inner peripheral water discharge hole line, 133 Guide Groove, 134 mounting hole, 134a cylindrical portion, 134b expanded diameter portion, 134c concave / convex groove, 135 first engaging recess, 136 second engaging recess, 141 water amount adjuster, 142 flow path forming portion, 143 fitting portion 144, second hole portion, 144a inlet, 144b outlet, 145 uneven portion, 146 space portion, 151 packing, 152 cylindrical portion, 153 diameter enlarged portion, 154 assembly, 155 regulating portion, 156 engaging step portion, 161 protrusion 162 recess

Claims

A substantially cylindrical casing having an attachment opening that can be attached to the water supply opening, and a water discharge side opening that is opened as the water discharge side;
In the casing, a throttle member formed with a first hole that squeezes the water flow supplied from the water supply port;
A water discharge surface facing the water discharge side opening is formed, and a second hole connected to the first hole is formed on the opposite side of the water discharge surface, and the water flow from the second hole is A nozzle member having a plurality of water discharge holes discharged from the water discharge surface,
The amount of deviation between the first hole and the second hole is changed by rotating the first hole and the second hole relative to each other so that the amount of water discharged can be adjusted. A water-saving device characterized by comprising
2. The water-saving device according to claim 1, wherein the first hole and the second hole are configured to be able to overlap and communicate with each other.
The water-saving device according to claim 1 or 2, wherein the water discharge hole is penetrated around the water discharge surface.
Between the throttle member and the nozzle member, a space portion is formed in which the water flow collides and depressurizes until the water flow from the second hole reaches the water discharge hole. The water-saving device according to any one of claims 1 to 3.
A protrusion is formed on one of the diaphragm member and the nozzle member,
On the other side, a plurality of recesses to which the protrusions are selectively engaged are formed,
When the diaphragm member and the nozzle member are rotated relative to each other, the protrusion is selectively engaged with the recess, and the set state of the shift amount between the first hole and the second hole is constant. The water-saving device according to any one of claims 1 to 4, wherein the water-saving device is held in the water.
The water-saving device according to any one of claims 1 to 5, wherein the second hole is formed in a water amount adjusting body that is rotatably attached to the nozzle member. .
The nozzle member is formed with an annular water discharge hole array formed by the plurality of water discharge holes,
The throttling member has a closing protrusion that selectively closes any one of the plurality of water discharge holes,
The nozzle member is rotatable relative to the aperture member;
The nozzle member is switched between a quasi-water-saving position where all the water discharge holes are opened and a water-saving position where any of the water discharge holes is closed by the closing protrusions by rotating. The water-saving device according to any one of 6.
A plurality of the nozzle members are formed such that the annular water discharge hole row forms a concentric circle,
8. The water-saving device according to claim 7, wherein the annular water discharge hole row is closed by a closing protrusion of the throttle member to be a water-saving position by rotating.
A packing disposed in the casing,
The assembly of the throttle member and the nozzle member has a substantially hemispherical shape in which the outer surface of the assembly includes the largest diameter portion of the sphere,
The surface of the packing that contacts the substantially hemispherical outer surface of the assembly forms a substantially spherical seating surface corresponding to the substantially hemispherical outer surface of the assembly,
The inner peripheral portion of the water discharge side opening that comes into contact with the assembly has an inner diameter smaller than the maximum outer diameter of the assembly,
The assembly is disposed so as to be slidable with respect to the substantially spherical seating surface of the packing so that the water discharge surface faces the outside from the water discharge side opening, and the angle of the water discharge surface is variable. The water-saving device according to any one of claims 1 to 8, wherein
The inner peripheral part which contacts the said assembly of the said water discharge side opening part makes the substantially spherical-shaped seat surface corresponding to the substantially hemispherical outer surface of the said assembly. Water saving equipment.
The throttle member is a projecting portion in which the entrance of the water passage hole is projected,
11. The water-saving device according to claim 9, wherein the movable range of the assembly is restricted when the protruding portion abuts against an inner peripheral wall of the packing.
The assembly of the throttle member and the nozzle member has a substantially hemispherical shape including a sphere having a maximum diameter portion and a surface having a diameter equal to or less than the maximum diameter on the water discharge side opening side.
The water-saving device according to any one of claims 9 to 11, wherein a surface having a diameter equal to or smaller than the maximum diameter is the water discharge surface.