KR101869493B1

KR101869493B1 - Connecting pipe for water tap of direct receiving type water purifier

Info

Publication number: KR101869493B1
Application number: KR1020160170072A
Authority: KR
Inventors: 권오선
Original assignee: 권오선
Priority date: 2016-12-14
Filing date: 2016-12-14
Publication date: 2018-06-21

Abstract

The present invention relates to a faucet connection pipe for a direct water type water purifier, wherein an inner pipe, through which purified water is transferred, is made of stainless steel harmless to a human body to prevent rust. To achieve this, the faucet connection pipe comprises: the inner pipe made of stainless steel, not rusted and harmless to a human body, in order to transfer the purified water therein without pollution; and an outer pipe made of polyoxymethylene (POM), which is an engineering plastic with high durability, wherein the outer pipe is integrally formed on the outside of the inner pipe by insert-injection molding.

Description

Direct connection type water pipe connection pipe for direct water supply type water purifier

[0001] The present invention relates to a connecting pipe which is coupled to a water-purifying water purifier and is connected to a sink, and more particularly to an inner pipe and an outer pipe each made of stainless steel and synthetic resin, The present invention relates to a connector for a water purifier.

Generally, as the water pollution due to industrial development becomes serious, distrust about tap water becomes high. Recently, purified water is used as drinking water, or bottled water sold on the market is used as drinking water. Such a water purifier is designed to remove heavy metals and other harmful substances contained in raw water through processes such as sedimentation, filtration, and sterilization of raw water such as tap water. In addition, as disclosed in Patent Registration No. 10-0289551, But is also widely used for cleaning or medical use of high-tech industries or ultra-precision electronic components.

Among these, various kinds of water purifiers for general household or commercial use are manufactured and used according to the water purification method. However, stand water purifier having tanks such as purified water tank, cold water tank and hot water tank, And a direct water purifier (under sink type water purifier) that discharges purified water through a faucet installed in the sink after filtration through the filter.

In the water purifier, when the water filter is replaced with the water purifier in Patent Document 10-2016-0036367, the raw water supply is blocked by the operation of opening and closing the protective door, and the residual water discharge is automatically performed according to the residual pressure of the water filter The present invention proposes a direct water type water purifier which can minimize the inconvenience of the consumer and can accurately replace the water filter requiring replacement only among the water filters without directly confusing the consumer by a simple operation.

However, in such a conventional water purifier, since the connection pipe for connecting the purified water pipe and fixing the faucet to the sink is made of brass, there is a problem that pollution is contaminated due to generation of blue rust as it is used for a long time.

In addition, there is a problem that the manufacturing cost and the product cost of the connector are increased because the unit price of brass is relatively high, which is not economical.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a direct water purifier water connection pipe which combines an inner tube and an outer tube made of stainless steel and synthetic resin by insert injection, There is a purpose.

The connection pipe for direct water-purifying water supply according to the present invention is a connection pipe dedicated for water purifier water, which is connected to the lower side of the water reception (P) installed on the upper side of the sink, in which water rinsed inward is rusted And an outer tube made of POM (Poly Oxy Methylene) which is a durable engineering plastic synthetic resin on the outer side of the inner tube is integrally formed by insert injection molding, and the inner tube made of stainless steel, which is harmless to the human body, An upper screw portion having a large diameter for screwing with the lower side of the water receiver P, an O-ring coupling portion for coupling the packing ring to prevent water leakage, and a nut for fixing the water receiver P to the sink The lower portion of the inner tube is protruded to a predetermined length below the outer tube, and the lower tube portion of the inner tube And the lower outer circumferential surface is formed with an engaging groove which is tightly inserted and fixed to the inside of the connecting hole connected to the purified water pipe from below.

According to the present invention, since the inner pipe to which purified water is transferred is made of stainless steel which is harmless to the human body, it is possible to prevent rust, thereby preventing contamination of purified water, prolonging the life of the connecting pipe, In addition, since the threaded portion of the outer tube is made of synthetic resin by injection molding, it is not only suitable for mass production, but also can reduce manufacturing cost and product cost, which is more economical.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a water purifier faucet with a connection pipe according to the present invention,
FIG. 2 is a perspective view of a connection pipe dedicated to a direct water-purifying water purifier according to the present invention,
FIG. 3 is a front view of a connection pipe for water straightening water purifier according to the present invention,
4 is a cross-sectional view of a connector according to the present invention and a front view of a connector;

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the connection pipe for direct water-purifying device of the present invention is connected to the lower side of the faucet P installed on the upper side of the sink, and the connecting pipe thus coupled protrudes to the inside of the sink, The water pipe to be transferred is connected.

As shown in FIGS. 2 and 3, the connection pipe includes an inner pipe 10 made of metal, and an outer pipe 20 integrally joined to the outer side of the inner pipe 10 and made of synthetic resin.

Preferably, the inner tube 10 is made of stainless steel which is harmless to the human body and does not generate rust so that water purified inside can be transferred without being contaminated, and is integrally coupled to the outer tube 20 by insert injection .

The outer tube 20 is preferably made of crystalline thermoplastic resin POM (Poly Oxy Methylene), which is an engineering plastic synthetic resin having strong durability widely used in the fields of electric, automobile, various machines, construction material, .

A coupling groove 11 for connecting a purified water pipe is formed on the lower outer circumferential surface of the inner tube 10 and an upper thread portion 11a for screwing with the lower side of the power receiver P is provided on the upper side of the outer tube 20, (21) are formed.

An O-ring engaging portion 22 for engaging a packing ring is formed on the lower side of the upper screw portion 21. A nut for fixing the faucet P to the sink is screwed on the lower side of the O- A lower threaded portion 23 of small diameter is formed.

4, the inner tube 10 and the outer tube 20 are integrally coupled to the outer circumferential surface of the upper end portion of the inner tube 10 by insert injection, and the inner tube 10 The outer tube 20 is formed by inserting the inner tube 10 into the injection mold.

The coupling groove 11 of the coupling pipe constructed as described above is tightly inserted into one end of the coupling hole 30 and a purified water pipe is coupled to the lower end of the coupling hole 30. [

Accordingly, since the inner tube 10 to which the purified water is transferred is made of stainless steel which is harmless to the human body, it is possible to prevent rust, thereby preventing contamination of the purified water and extending the life of the connecting tube, The screw part is formed of a synthetic resin by injection molding so that it is suitable for mass production, and manufacturing cost and product cost can be reduced, which is more economical.

10: Inner tube 11: Coupling groove
20: outer tube 21: upper thread portion
22: O-ring coupling part 23:
30: Connector

Claims

A connection pipe dedicated for water purifier for water, which is coupled to a lower side of a water receiver (P) installed on the upper side of a sink,
(10) made of stainless steel which does not cause rust so that water purified inside can be transferred without being contaminated and is harmless to the human body, and POM (Poly Oxy Methylene) is integrally formed by insert injection molding,
An upper screw portion 21 having a large diameter for screwing with the lower side of the faucet P, an O-ring engaging portion 22 for engaging the packing ring to prevent water leakage, A lower threaded portion 23 of small diameter is provided for screwing a nut for fixing the threaded portion P,
The lower portion of the inner tube 10 is protruded to a predetermined length below the outer tube 20 and is tightly inserted and fixed to the inner side of the connecting hole 30 connected to the purified water pipe from the lower outer peripheral surface of the inner tube 10, Wherein the coupling groove (11) is formed in the coupling hole (11).

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