JPH07155648A - Water purifier - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a water purifier capable of obtaining a good shower water flow. [Structure] On the outer circumference of a raw water outlet 6 provided in the lower part of the main body connected to a faucet, a shower outlet 7 composed of a plurality of concentrically arranged opening holes 10 is provided, and the opening hole 10 is tapered. The shape is such that the axial center P of the opening hole 10 is eccentric toward the outside of the shower outlet 7 in the radial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier that is used by being attached to a tap such as domestic tap water, and more particularly to a water purifier that can obtain a good shower flow without disturbance.

[0002]

2. Description of the Related Art Conventionally, as a water purifier of this type, the raw water which is attached to a faucet and is taken in is supplied to the water purifier side directly to the raw water outlet by operating a switching valve. It is known that the water is guided to the outlet of the shower and discharged.

[0003]

However, the above-mentioned conventional water purifier has the following problems. That is, since the shape of the opening hole which is the shower outlet is the same diameter at the inlet and the outlet, the shower streamline converges as it goes downward from the exit of the opening hole, and the opening holes approach each other. Since the converging water flows interfere with each other at the lower part to form a disturbing shower water flow, there is a problem that a sufficient showering effect cannot be obtained when washing dishes and food.

The present invention has been made in view of such circumstances, and an object thereof is to provide a water purifier capable of obtaining a good shower flow without disturbance.

[0005]

The present invention has the following constitution in order to achieve such an object. That is,
A main body accommodating the flow path switching valve is provided with a raw water inlet connected to the faucet, a water supply outlet for sending raw water to the filtering section, a raw water outlet, and a shower outlet formed by a plurality of opening holes, Moreover, the opening hole is tapered in the shower take-out direction, and the axis of the opening hole is eccentric toward the radial outside of the shower outlet.

[0006]

According to the present invention, since the raw water taken in from the faucet is discharged as a shower flow from the plurality of tapered openings through the switching valve, the water flow is throttled and the diameter of the shower outlet is reduced. Since the axial center of the opening hole is eccentric toward the outside in the direction, it is possible to obtain a good shower water flow in which water is forcibly discharged outward and water flows out from each opening hole without interference.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a state in which a water purifier according to an embodiment is attached to a faucet. As shown in FIG. 1, this water purifier has a main body 1 and a filter section 2 integrally connected to the main body 1, and the main body 1 is directly connected to a faucet 3 such as a water supply. A raw water inlet 4 is provided at the top of the body 1 and is directly connected to the faucet 3 by a mounting nut 5. A raw water outlet 6 is provided at a lower portion of the main body 1, and a shower outlet 7 is provided at an outer peripheral portion of the raw water outlet 6.

A flow path switching valve (not shown) is built in the main body 1, and the flow path switching valve is operated by a switching lever 8 provided on a side portion of the main body 1. When the switching lever 8 is set to the “clean water” position, the raw water taken in from the raw water inlet 4 is supplied to the filtration unit 2. Also, when the switching lever 8 is set to the "raw water" position,
Raw water taken from the raw water inlet 4 is discharged from the raw water outlet 6. Further, when the switching lever 8 is set to the “shower” position, the raw water taken in from the raw water inlet 4 is discharged from the shower outlet 7.

Next, the structure of the shower outlet 7 will be described with reference to FIGS. 2 and 3. 2 is a bottom view showing the entire shower hole, and FIG. 3 is a detailed sectional view thereof. As shown in FIG. 2, the shower outlet 7 formed on the outer peripheral portion of the raw water outlet 6 is composed of a plurality of small-diameter holes concentrically arranged. In this embodiment, the shower outlet 7 has a diameter of 18 mm outside the raw water outlet 6. .24 mm
12 on the inner circular line P1, 24 on the middle circular line P2 with a diameter of 24.4 mm, and an outer circular line P3 with a diameter of 30.37 mm
It is composed of a total of 60 opening holes 24 on the upper side. The distance between the adjacent opening holes 10 is 2 to 5 mm, and the depth of the opening holes 10 is 2 mm.

As shown in FIG. 3, all of the openings 10 are tapered toward the outlet, and the openings 10 extend from the central portion (raw water outlet 6) to the outside of the shower outlet 7 in the radial direction. The axis P of 10 is eccentric. This opening 1
Details of 0 are shown in FIG. The inlet inner diameter D that is the inlet of raw water is 1.8 mm, the outlet inner diameter d on the tip side that is the outlet is tapered to 1.3 mm, and the eccentricity α of the axis P toward the outer side in the radial direction is 0. 0.1 mm (tilt approx. 2.8
°). The amount of reduction of the outlet inner diameter d with respect to the inlet inner diameter D is preferably in the range of 15% to 35%, more preferably 20% to 30%. The inclination angle of the shaft center determined by the eccentricity α of the shaft center P is preferably in the range of 2 ° to 5 °, more preferably 2.5 ° to 3.5 °.

At the shower outlet 7 having the above-mentioned opening 10, raw water is discharged at a pressure in the range of 0.1 to 1.0 kgf / cm ^2. As a result, the shower stream line state is as shown in FIG. It has a spread of about 2 ° to the outside with respect to the vertical, and a good shower streamline can be obtained without the individual streamlines L1 interfering with other streamlines L2.

Next, in order to confirm the effect of this embodiment,
A comparison is made with the case where the shape of the opening is changed, and the results are shown below.

(Comparative Example 1) As a result of performing the pressure in the same manner as in the above embodiment, the shower flow was the same as that in the above embodiment, and the shower flow line was the same as in the above embodiment. Converges as it goes vertically downwards,
Interference occurs downstream.

(Comparative Example 2) The shape of the opening hole was set to the same inlet inner diameter of 1.8 mm and outlet inner diameter of 1.3 mm, and the pressure was carried out in the same manner as in the above embodiment without eccentricity. As is the case, the shower streamlines converge as they go vertically downward, and there is partial interference in the downstream portion.

(Comparative Example 3) The shape of the opening is shown in FIG.
As shown in FIG. 3, the inlet inner diameter is 1.8 mm, the outlet inner diameter is 1.3 mm, the eccentricity α is 0.25 mm (inclination about 7.1 °), which is larger than that of the embodiment, and the pressure is increased. As a result, the shower flow rate was the same as in the example,
No interference of shower streamlines occurred. However, the shower streamline has a large spread with respect to the vertical of about 10 °, and water splashes frequently when washing dishes or the like.

As described above, it is possible to obtain an undisturbed shower water flow without reducing the flow rate by reducing the inner diameter of the opening hole of the shower outlet and eccentric the shaft center.

In the embodiment, the water purifier in which the main body 1 attached to the faucet 3 and the filter unit 2 are integrally connected is used.
It can also be applied to a stationary type water purifier in which the main body 1 and the filtration unit 2 are separated via a hose.

Further, in the embodiment, the opening holes are provided in a concentric pattern of three layers of the inner circular line P1 to the outer circular line P3, but the present invention is not limited to this, and the opening holes are formed at appropriate intervals. You may arrange at random.

Further, in the embodiment, the eccentric amounts of the opening holes of the inner circular line P1 to the outer circular line P3 are all made uniform, but it is better to increase the eccentric amount toward the outer side than the center side.
It is more preferable that the distance between the streamlines on the adjacent annular lines be wider.

[0020]

As is apparent from the above description, according to the present invention, the raw water taken in from the faucet is squeezed by the opening hole of the shower outlet to flow out, and the raw water is directed radially outward of the shower outlet. By forcibly discharging the water, a good shower water flow without turbulence can be obtained, so that the shower water flow can be efficiently and uniformly supplied to the cleaning surface of tableware, food, or the like.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a water purifier according to the present invention.

FIG. 2 is a bottom view of a shower outlet.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged vertical sectional view of an opening hole of a shower outlet.

[Explanation of symbols]

 1 ... Main body 4 ... Raw water inlet 6 ... Raw water outlet 7 ... Shower outlet 8 ... Switching lever 10 ... Opening hole P ... Shaft center P1 ... Inner circular line P2 ... Middle circular line P3 ... Outer circular line D ... Inlet inner diameter d … Outer diameter α… Eccentricity

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication C02F 1/28 S (72) Inventor Yasuo Miyake 4-6-17-801 Hakurocho, Chuo-ku, Osaka City

Claims (1)

[Claims] Claims: 1. A body containing a flow path switching valve, a raw water inlet connected to a faucet, a water supply port for feeding raw water to a filtering section, a raw water outlet, and a shower formed with a plurality of openings. A water purifier having an outlet, the opening having a tapered shape in a shower outlet direction, and the shaft center of the opening being eccentric toward a radially outer side of the shower outlet.