JP2004300780A - Feedwater activating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To bring about sufficient activation even if the amount of feedwater varies, in a feedwater activating apparatus for activating running water. <P>SOLUTION: In this feedwater activating apparatus, a lower-end-side discharge port 14, whose diameter is larger than that of an upper-end-side inflow port 13, in a negative-pressure forming hole 12 is made to communicate with an outside-air suction port 3a of a main body; and a space H, a flow-straightening ring and a mesh plate are interposed between an opening of an undersurface of the main body and a lower-end opening surface of the discharge port 14 of the hole 12. In the feedwater activating apparatus, the effective opening number of the inflow ports 13 of a negative-pressure forming interior-finishing component 10 can be freely selected. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a water supply auxiliary tool attached to a distal end (for example, a faucet) of a water supply channel. More specifically, the present invention relates to a water supply activation device for activating tap water.
[0002]
[Prior art]
Regarding this type of water supply activating device, Japanese Patent Application Laid-Open No. H11-300234 discloses an "activated water forming device" (Patent Document 1) and Japanese Patent Application Laid-Open No. 11-104523 discloses a "hairwashing table shower head" (Patent Document 1). 2) exists. Each of them activates tap water, forms a mixed jet with the outside air sucked from the intake small hole by using a negative pressure, and discharges the mixed jet from the discharge small hole.
There was little water saving functionality, and there was a problem that air might not be mixed in due to a change in water supply pressure.
In addition, the method of providing a valve using an orifice at the inlet of the foam generation part to reduce the flow rate and then flowing into the foam part is easily affected by the inflow pressure. There was a problem that did not foam.
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 11-300234 [Patent Document 2] Japanese Patent Application Laid-Open No. 11-104523,
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a water supply activating device for activating tap water, which achieves the purpose of activating the change in water supply amount more than enough.
[0005]
[Means for Solving the Problems]
The water supply activating device according to the invention of the present application is arranged such that a lower end discharge port 14 having a large diameter with respect to an upper end side inlet 13 in the negative pressure forming hole 12 communicates with the outside air inlet 3a of the main body. A space H, a rectifying ring, and a mesh plate are interposed between the lower end opening surface of the discharge port 14 on the lower end side of the unit 12 and the opening on the lower surface of the main body.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
[0007]
Referring to FIGS. 1 and 2, reference numeral 1 denotes a cylindrical main body having an upper surface 1a and a lower surface 1b opened, and a screw 2 for attaching to a water supply fitting (faucet) formed on an upper inner surface. Ten outside air inlets 3 are formed in the middle part.
[0008]
Referring to FIG. 3, in addition to the screw 2 of the cylindrical main body 1, a first internal space 5 is provided above the first step portion 4, a second internal space 7 is provided above the second step portion 6, and a third internal space 7 is provided. Third internal spaces 9 are formed above the steps 8, respectively.
[0009]
The negative pressure forming interior part 10 shown in FIG. 3 is freely insertable inside the cylindrical main body. In the inserted state, it has a step 11 corresponding to the first step 4, and occupies the upper half of the first internal space 5 and the second internal space 7 with reference to FIG. 2.
[0010]
Ten concentrically arranged negative pressure forming holes 12 penetrate vertically. The negative pressure forming hole 12 has a larger diameter (that is, a larger cross-sectional area) at the discharge port 14 at the lower end than the inlet 13 at the upper end. The inner end of the annular lateral groove 15 communicates with the discharge port 14 on the lower end side. In the assembled state, referring to FIG. 2, the outer peripheral end of the annular lateral groove 15 communicates with the outside air inlet 3.
[0011]
An upper insertion space 16 is formed on the upper surface of the negative pressure forming interior component 10, and the adjustment plate 20 in FIG. 5 and the mesh plate 30 in FIG.
[0012]
Referring to FIG. 5, adjustment plate 20 has two long holes 21 and two short holes 22 which are arranged concentrically. Also, small holes 23 and 24 are formed in the center.
[0013]
With the adjustment plate 20 placed in the upper insertion space 16 on the upper surface of the negative pressure forming interior part 10, the number of the inflow holes 13 in the open state can be changed freely. In the embodiment of FIG. 5, the position of the adjusting plate 20 is selected from ten, six, four, etc. by selecting the relative positions of the small holes 23, 24 and the small holes 17 (the upper surface of the negative pressure forming interior part 10). Multi-stage selection is free. By changing the number and positions of the long holes 21 and the short holes 22 of the adjusting plate 20, four stages of ten, eight, six, and four or other stages can be changed. In addition, by preparing a plurality of adjusting plates 20 having different numbers and positions of the long holes 21 and the short holes 22, the number of the open inlets 13 can be changed in multiple stages by selecting the adjusting plate 20 to be used. It is also possible.
[0014]
FIG. 6 shows a mesh plate 30, which is composed of a mesh surface 31 and a ring-shaped support frame 32.
[0015]
In the assembled state, referring to FIG. 2, mesh plate 3 is placed on adjustment plate 20 and faces a water supply port of a water supply fitting (faucet). Further, two mesh plates 30 are provided in the third internal space 9.
[0016]
Referring to FIG. 2, an outside air suction port 3 a at an intermediate portion of the peripheral surface of main body 1 communicates with discharge port 14 at a lower end side of negative pressure forming hole 12 through annular lateral groove 15.
In the lower half of the second internal space 7, between the lower surface of the negative pressure forming interior component 10 where the discharge port 14 on the lower end side of the negative pressure forming hole 12 exists and the upper surface of the mesh plate 3 of the third internal space 9. A rectifying ring 40 and two mesh plates 30 are fixed to the main body 1 with a snap ring 50 below the space H. Referring to FIG. 7, rectifying ring 40 has a shape having a slope 41, an opening 40, and a peripheral edge 43. 60 is a packing.
[0017]
Thus, in the negative pressure forming interior part 10, a negative pressure is generated in a place where a difference in the warp is generated by the water outlet passing through the pipe of the great meridian (negative pressure forming hole) rather than the inflow port. Is provided with a lateral hole (annular lateral groove 15 and outside air intake port 3a), which acts as a ventilation port with outside air, whereby cavitation can be suppressed and high pressure can be injected.
[0018]
The high-pressure water at the water discharge destination (the lower half H of the second internal space 7) is rectified by the rectification ring 40, and then passes through the mesh surface 21. A foamy water flow becomes possible.
[0019]
Thus, referring to FIG. 8, the water supply activating device B of the present invention attached to the water supply fitting (faucet) A enables a foamy water flow with a large amount of aeration while having a high pressure. From the lower end of the water supply activation device B, a foamy jet water stream P having a high pressure and a large amount of air mixing is discharged almost vertically.
[0020]
Since the number of effective inlets can be freely selected by the adjusting plate 20, it is possible to cope with a decrease in water pressure and to exert a water saving effect.
[0021]
Equipped with an activated carbon mesh plate and a ceramic mesh plate located in the third internal space 9,
The healing effect can be created by hitting the high-speed jet of water against activated carbon or ceramic.
[0022]
【effect】
The water supply activating device B of the present invention, even at low water pressure, mixes air and changes to a jet water flow, thereby enabling high-pressure water discharge even with a small amount of water, enabling significant water saving, and reducing water pressure from low to high. It has the effect that foamy spouting can be performed within the range of water pressure.
[Brief description of the drawings]
FIG. 1 is a perspective view of a water supply activation device showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the same.
3A and 3B show a cylindrical main body, in which FIG. 3A is a front view with a partial cross section, and FIG.
4A and 4B show a negative pressure forming interior part, wherein FIG. 4A is a plan view and FIG.
5A and 5B show an adjustment plate, wherein FIG. 5A is a plan view and FIG. 5B is a front view.
6A and 6B show a mesh plate, wherein FIG. 6A is a plan view and FIG. 6B is a longitudinal sectional view.
7A and 7B show a rectifying ring, wherein FIG. 7A is a plan view and FIG.
FIG. 8 is a schematic view showing a use state of the water supply activation device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylindrical 3 External air suction port 10 Negative pressure forming interior part 12 Negative pressure forming hole 13 Inflow port 14 Discharge port 15 Annular lateral groove 20 Adjusting plate 30 Mesh plate 40 Rectifying ring 50 Snap ring

Claims (2)

In the negative pressure forming hole 12, a discharge port 14 on the lower end side having a large diameter with respect to the inflow port 13 on the upper end side communicates with the outside air suction port 3a of the main body,
A water supply activation device characterized by interposing a space H, a rectifying ring, and a mesh plate between a lower end opening surface of a discharge port 14 on a lower end side of a negative pressure forming hole 12 and an opening on a lower surface of a main body. The water supply activation device according to claim 1, wherein the effective numerical aperture of the inflow port (13) in the negative pressure forming interior part (10) is freely selectable.

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