JPH04322780A - Water purifier - Google Patents

Abstract

PURPOSE:To improve working efficiency of assembling and to decrease the production cost by using such a structure for a domestic water purifier that no screw is used to connect an entrance joint to a main body. CONSTITUTION:The inner wall of a water path of the entrance joint 18 is inserted to fit the outer diameter of an inlet 2 and pinched with fixing rib 30 to the inner wall of a pace 3. In this case, a groove is formed in a part of the outer wall of the inlet 2, for which an O-ring 21 is attached to seal the inner surface of the water path of the entrance joint 18 and to prevent water leaking through a vacancy.

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 drinking water such as household tap water, and more particularly to an undersink type water purifier that can be installed using the space below the kitchen.

0002

2. Description of the Related Art In conventional water purifiers, an inlet fitting through which raw water flows and an outlet fitting through which purified water that has passed through a cartridge is discharged are fixed to the main body with screws. As a result, a screw tightening process was required during assembly, resulting in poor workability.

0003

Problems to be Solved by the Invention The above-mentioned prior art has problems in that it requires a screw tightening process during assembly, resulting in poor work efficiency, and the use of screws increases costs.

[0004] According to the present invention, the inlet fitting connected to the raw water inlet of the water purifier main body is connected without using screws. As a result, it is possible to omit the screw tightening process during assembly work, thereby improving work efficiency, and also to provide an inexpensive water purifier since no screws are used.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention inserts the inner surface of the water passage part of the inlet fitting into which raw water flows into the outer diameter of the raw water inlet mounted on the base,
It has a structure in which it is held between fixed ribs on the inner wall of the base.

[0006] This has made it possible to fix the entrance fitting without using screws, which is the conventional fixing method.

[0007]

[Operation] The present invention has a structure in which the inner surface of the water passage portion of the inlet fitting is inserted into the outer diameter of the raw water inlet and is held between the inner wall of the base by fixed ribs. In this structure, the fixing rib of the inlet fitting contacts the inner wall of the base and does not come off against the tensile force of the inlet fitting. In addition, in response to pushing force, the step provided in the water passage part of the inlet fitting comes into contact with the tip of the raw water inlet, so it acts as a stopper and prevents the water from penetrating deeper. Furthermore, in response to forces in the left and right directions, two ribs are provided on the inner wall of the base, and a fixing rib for the entrance fitting is sandwiched between the ribs to prevent rotation of the entrance fitting.

[0008]

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 a water purifier, and the configuration will be explained using this drawing.

[0010] An inlet 2 having a raw water inlet 1 is fixed to a base 3. The cartridge 4 is formed of a main body 6 having a purified water outlet 5 at the top and a lid 8 having a raw water inlet 7, and has activated carbon 9 as a filter medium and a hollow fiber membrane 12 housed in a case 11 having an opening 10 built therein. There is.

The hollow fiber membrane 12 is a bundle of threads having openings of about 0.1 μm.

In order to prevent the activated carbon 9 from flowing out, an inlet filter 13 and an outlet filter 14 are installed.

The cartridge 4 is screwed into the inlet 2 and fixed to the base 3.

An outlet fitting 15 is rotatably attached to the purified water outlet 5 and is clamped by an upper case 16.

The inlet 2 is equipped with an inlet fitting 18 through which raw water supplied from the faucet 17 flows through a water conduit.

Next, the operation will be explained with reference to FIG.

By opening the hydrant 20 exclusively for the water purifier, raw tap water is sent to the hydrant 20 exclusively for one purpose, passes through the water pipe, passes through the inlet fitting 18 and the inlet 2, and flows into the cartridge 4. do.

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

The hollow fiber membrane 12 removes foreign matter such as dirt.

[0020] The water purified by these filter media is transferred to the upper case 1.
It flows into the outlet joint 15 held between the two. The water that has passed through the outlet 15 passes through a water conduit pipe and is connected to a dedicated water tap 20.
and is discharged to the outside from here.

According to the present invention, the inner surface of the water passage portion of the inlet fitting 18 is inserted into the outer diameter of the inlet 2, and is held between the inner wall of the base 3 by the fixing ribs 30. At this time, a groove is formed in a part of the outer diameter of the inlet 2, and an O-ring 21 is attached to the groove to seal the inner surface of the water passage part of the inlet fitting 18 to prevent water leakage from the gap.

This structure is such that the fixing rib 30 of the entrance nail 18 shown in FIG. In addition, in response to the pushing force of the inlet fitting 18, the stepped part 22 provided in the water passage part of the inlet fitting 18 contacts the tip of the inlet 2, so this part acts as a stopper and prevents the water from penetrating deeper. There is. Furthermore, two ribs 23 are provided on the inner wall of the base 3 shown in FIG.
Since the fixing rib 30 of the entrance jaw 18 is sandwiched between them, rotation of the entrance jaw 18 is prevented.

In other words, the present invention makes it possible to eliminate the screw tightening that was conventionally performed when connecting the inlet fitting 18.
Work efficiency is improved, and since no screws are used, an inexpensive water purifier can be provided.

[0024]

According to the present invention, since the inlet fitting is connected to the main body without using screws, the screw tightening process can be omitted during assembly work, thereby improving work efficiency. Furthermore, since no screws are used, an inexpensive water purifier can be provided.

[Brief explanation of drawings]

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

FIG. 2 is a sectional view of the inlet fitting.

FIG. 3 is a bottom view of the base.

[Explanation of symbols]

2...Inlet, 3...Base, 4...Cartridge, 18
...Inlet fitting, 21...O-ring, 30...fixing rib.

Claims (1)

[Claims] Claim 1: A water purifier comprising a cartridge containing a filter medium, a base having a raw water inlet and holding the cartridge, and an upper case having a purified water outlet; A water purifier characterized by a structure that does not use screws.