JPH057867A - Water purifying device - Google Patents

Abstract

PURPOSE:To allow the easy viewing of a resistor through a transparent window by forming the transparent window to be visually observed by a user and a water purifying case housing the resistor which is an operating part into bisected structures as the constituting parts of a flow rate indicator. CONSTITUTION:A base for holding a cartridge having a raw water port and contg. a filter material, an upper case 15 having a clean water discharge port and the flow rate indicator for announcing the time for exchange of the cartridge when the resistor 21 operates on falling of a water volume are provided in this water purifying device. The transparent window 23 and the water purifying case 18 housing the resistor 21 are made into the bisected structures and the transparent window 23 is crimped by the upper case 15 and the water purifying case 18, by which the shrink mark of the transparent window 23 by the thickness is prevented. The easy viewing of the operation of the resistor 21 is thus possible. The front surface (the surface to be viewed) of the transparent window 23 is rounded and the rear surface is formed flat. The four side face parts on the rear surface side are tapered to have an angle on all sides. The magnified viewing of only the resistor 21 when the transparent window 23 is viewed, is then possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier for purifying drinking water such as domestic tap water, and more particularly to a water purifier having a flow rate indicator for detecting a life due to clogging of a cartridge.

[0002]

2. Description of the Related Art In a conventional water purifier, when a resistor that responds to the amount of water is viewed through a transparent window, the periphery of the resistor can be seen, and
Since there was no lens effect, it was hard to see the resistor.

[0003]

SUMMARY OF THE INVENTION In order to solve the above problems of the prior art, the present invention makes it easier to see the resistor when viewed through the transparent window by devising the structure of the flow rate indicator and the shape of the transparent window. It is an object.

[0004]

In order to achieve the above object, the present invention adopts a two-part structure of a water purifying case for accommodating a transparent window for visually observing the operation of a resistor and a resistor which is an operating part. . The shape of the transparent window was also devised. In particular,
The upper surface of the transparent window (that is, the surface viewed by the user) was a rounded surface, and the surface on the resistor side was a flat surface. And
The side surface portion on the flat surface side was inclined with respect to all four surfaces.

[0005]

In the present invention, the transparent window and the water purification case for accommodating the resistor which is the operating portion are divided into two parts, so that the distance between the position of the resistor and the upper surface of the transparent window becomes long, so that the thick wall is eliminated. Since this can be avoided, sink marks in the transparent window due to the thick wall can be prevented, and the operation of the resistor can be clearly shown. In addition, the upper surface of the transparent window has a rounded surface and the surface on the resistor side is a flat surface, so that the lens effect is exerted and the resistor is enlarged to have a shape that is easy to see. Further, the side surface on the lower surface side of the transparent window is angled with all four surfaces to be inclined, so that when viewed by the user, the inclined surface becomes opaque due to refraction of light, and only the operating resistor is visible.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall configuration diagram of the water purifier, and the overall configuration will be described with reference to FIG. The inlet 2 having the raw water inlet 1 is fixed to the base 3. Cartridge 4
Is a main body 6 having a purified water discharge port 5 at the top and a raw water inlet 7
A hollow fiber membrane 12 formed of a lid 8 having a hollow space and housed in a case 11 having an activated carbon 9 as a filter medium and an opening 10.
Is built in.

The hollow fiber membrane 12 is a bundle of threads having openings of about 0.1 μm. The inlet filter 13 and the outlet filter 14 are provided to prevent the activated carbon 9 from flowing out.
Is installed. The cartridge 4 is screwed into the inlet 2 and fixed to the base 3.

A water purification case 18 having a water purification port 16 and a slidable water purification pipe 17 mounted on the upper case 15.
Is stored.

The upper case 15 is elastically fixed to the middle case 19.

By mounting the middle case 19 on the upper portion of the cartridge 4, a water purification case 18 and a water passage are formed.

The structure of the water purification case 18 will be described in detail with reference to FIG.

The inside of the water purification case 18 has an auxiliary water passage 20.
a and the main water passage 20b are formed.

A resistor 21 and a spring 22 are built in the auxiliary water passage 20a.

The transparent window 23 shown in FIG. 1 is attached to the upper case 15 at the corresponding position of the resistor 21, so that the movement of the resistor 21 can be visually observed from the outside.

As described above, the flow rate indicator includes the auxiliary water passage 20a, the resistor 21, the spring 22, and the transparent window 23.
It is composed of.

A bypass port 24 communicating with the purified water discharge port 5 is formed in the main water passage 20b.

The main water passage 20b has a structure in which the water purification pipe 17 can slide. A groove is provided in a part of the water purification pipe 17, and a C-ring 25 having a part notched is attached to the groove.

The main water passage 20b and the auxiliary water passage 20a are connected by a case cap 26.

Next, the operation will be described with reference to FIGS.

By opening the faucet 30, raw tap water flows into the cartridge 4 via the inlet 2.

The activated carbon 9 in the cartridge 4 adsorbs the organic matter of the raw water, residual chlorine and the like, and then flows into the case 11 through the opening 10.

In the hollow fiber membrane 12, foreign matters such as dust are removed.

The water purified by these filter media flows into the water purification case 18, passes through the auxiliary water passage 20a and the main water passage 20b, and is discharged from the water purification pipe 17 having the water purification port 16.

According to this embodiment, the construction of the flow rate indicator and the shape of the transparent window 23, which serve as a guide for the replacement time of the cartridge 4, are devised by the operation of the resistor 21.

The details will be described with reference to FIGS. 3 and 4. FIG. 3 shows an exploded view of the upper case 15. The transparent window 23 and the water purification case 18 are made of transparent plastic, and the transparent window 2
3 is sandwiched between the upper case 15 and the water purification case 18. At that time, since the lower surface of the transparent window 23 and the A surface of the upper case 15 are in contact with each other, the resistor 21 can be seen when the user looks at the transparent window 23 from above.

According to this embodiment, the water purification case 18 for accommodating the transparent window 23 and the resistor 21 which is the operating portion has a two-part structure. This is the position of the resistor 21 and the transparent window 23.
In order to avoid the thick portion due to the increase in the distance to the upper surface, the sink of the transparent window 23 due to the thick portion is prevented and the operation of the resistor 21 is clearly shown.

The shape of the transparent window will be described in detail with reference to FIG.

The upper surface 51 of the transparent window 23 (that is, the surface viewed by the user) is rounded, and the lower surface 52 facing the resistor 21 is a flat surface. As a result, the lens effect can be exhibited, and the resistor 21 is enlarged for easy viewing.

Further, the side surface 5 of the transparent window 23 on the lower surface 52 side.
3 is an inclined surface with an angle formed on all four surfaces. The tip of the inclined surface (on the lower surface 52 side) secures only the area of the operating range of the resistor 21. That is, when the user looks from above,
The inclined portion becomes opaque due to the refraction of light, and only the operating resistor 21 is visible.

[0031]

According to the present invention, since the transparent window and the water purification case are divided into two parts, sinking of the transparent window due to the thick wall can be prevented, and the operation of the resistor can be clearly shown. . In addition, the upper surface (the surface to be viewed) of the transparent window is rounded, the lower surface is a flat surface, and the side surface portion on the lower surface side is inclined with respect to all four surfaces. Thereby, when the user looks at the transparent window, only the resistor can be enlarged and viewed. That is, it becomes possible to clearly inform the user of the replacement time of the cartridge, and the usability can be improved.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of an upper case.

FIG. 4 is an overall enlarged view of a transparent window.

[Explanation of symbols]

4 ... Cartridge, 15 ... Upper case, 18 ... Water purification case, 21 ... Resistor, 23 ... Transparent window.

Claims (3)

[Claims] 1. A cartridge containing a filter medium, a base having a raw water outlet for holding the cartridge, an upper case having a purified water discharge outlet, and a resistor that operates when the water amount is low to notify the user of the replacement time of the cartridge. A water purifier having a flow rate indicator that informs the user of the flow rate indicator, which has a two-part structure consisting of a transparent window visible to the user and a water purification case accommodating a resistor as an operating part. 2. The transparent window according to claim 1, wherein an upper surface (that is, a surface viewed by a user) has a round shape and a facing lower surface (a surface in contact with the water purification case) is a flat surface. Water purifier. 3. The lower surface of the transparent window (the surface that contacts the water purification case)
The water purifier according to claim 1, wherein the side surface portion on the side is inclined with four angles.