KR101389182B1 - Tubing conjunction structuer for water purifying multi-filter - Google Patents

Abstract

The present invention relates to a connection hose coupling structure of a multi-staged water purifying filter. In the present invention, fitting that is performed with a relatively large amount of components is not used, but the inlet and outlet of the multi-staged water purifying filter is coupled with a connection hose only by means of an elbow pipe and a connection cap, so that the number of components can be reduced and points of leakage can be minimized. The connection hose coupling structure of the multi-staged water purifying filter according to an embodiment of the present invention couples a connection hose with the inlet or outlet of the multi-staged water purifying filter for a water purifier in which multiple water purifying filters are serially disposed in an installation frame. The connection hose coupling structure of a multi-staged water purifying filter comprises: an elbow pipe that has one end equipped with a first coupling part inserted in the inlet or outlet in order to be watertightly coupled and has the other end equipped with a second coupling part bent vertically in order to be inserted in and coupled with the connection hose; and a connection cap that enables the connection hose to be watertightly coupled with the second coupling part of the elbow pipe by pressurizing the connection hose onto the second coupling part so as to surround the edge of the second coupling part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-

The present invention relates to a connection hose connection structure of a multi-stage water filter, and more particularly, to a connection hose connection structure of a multi-stage water filter, in which a connecting hose is connected to an inlet and an outlet of a multi- And a connection hose connection structure of the multistage water filter, which minimizes the number of leakage points.

The water purifier is divided into a general water purifier installed in a home or an office, and a water purifier installed in a refrigerator. The water purifier filters the raw water such as tap water and provides it as hot water or cold water.

Inside the water purifier, a number of filters for sterilizing bacteria that cause water-borne diseases and scum by removing and collecting harmful components are included in the water.

The filter used in the water purifier is composed of a sediment filter for forming raw water sequentially through the filter, a pre-carbon filter for performing a filtering function by adsorption by micropores of the carbon (activated carbon) block filter, a post-carbon filter, a membrane filter, and an ultraviolet sterilizing filter (UV-filter).

Also, in the water purifier, a connection hose made of a synthetic resin material (also referred to as tubing) is used to move the raw water to each filter, and a fitting is used to facilitate the connection of the connection hose.

The filter and the water storage tank are formed with an inlet port through which raw water flows and an outlet port through which raw water flows (hereinafter, referred to as "nipple"). The connection hose is connected to the nipple by a fitting, .

As an example of a connection hose connection structure of a water filter using such a fitting, Korean Patent Laid-Open Publication No. 10-2009-0025015 (published on Mar. 10, 2009) discloses a water hose which has an interior through which holes are formed on the outer peripheral surfaces of both ends And a collet including a body, a protrusion, and a collar, the collet including an insertion portion inserted into an open region at both ends of the body, and an outer peripheral portion connected to the insertion portion and configured to surround an outer circumferential surface of an end of the body, The projections fix the hose according to the engagement of the latching jaws with the holes and the projections separate the hose as the latching jaw moves to the outer periphery of the body through the holes. Fittings are posted.

 The fitting according to the prior art includes a body, a collet formed with a sharp protrusion, and a collar and an O-ring which are welded to the body and into which the collet is inserted.

In order to connect the connecting hose and the nipple used for the water purifier to the fitting, it is sufficient to insert the connecting hose through the hole of the collet. At this time, the inserted connecting hose is fixed by the projection of the collet so as not to be dislodged, Leakage is prevented, and the collet is kept spaced apart from the collar at a predetermined interval.

In order to separate the connecting hose from the collet, there is a method of releasing the projection by pressing the exposed end surface of the collet toward the inside of the fitting or by inserting a separate eliminator into the collet. However, since the diameter of the exposed end surface of the collet is generally smaller than the diameter of the collar, the method of pressing the end surface of the collet is inconvenient to the user, and the method of using a separate disposer is to always carry the disposer There is an inconvenience.

Further, since the fitting according to the prior art basically includes four parts such as a body, a collar, a collet, and an O-ring, there is a lot of leaking parts as well as a separate process of ultrasonic welding the collar to the body, .

In order to solve the above-described problem, in Korean Utility Model Laid-Open Publication No. 20-2013-0002819 (published on May 3, 2013), a hose connection part is formed so as to protrude from a connection part of a water filter head so that a connection hose is inserted into a hose connection part, And a cap engaging portion and a hose engaging portion are formed on the connecting portion and the hose connecting portion, respectively, and a hook and a pressurized beveled surface are formed on the inner circumferential surface of the fastening cap so as to correspond to the cap fastening portion and the hose fastening portion, And the hook is assembled to the cap engagement portion in a state in which the pressure inclined surface is pressed, and the sealing hose is sealed by the self-elastic force of the connection hose, and is assembled one-touch with the single component.

However, in the case of the connection hose connection structure of the water filter according to the related art as described above, since the separation hose can not be separated once the connection hose is connected to the water filter head, it is applicable only to a structure in which the water filter is detachably coupled to the water filter head In particular, there is a problem that it is difficult to apply to a multi-stage water filter in which a plurality of filters are connected in series by being designed on the basis of one filter.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art described above, and it is an object of the present invention to reduce the number of parts by connecting a connecting hose to an inlet and an outlet of a multi- And at the same time minimizing the leakage point. The present invention is based on the task of providing a direct connection end for a connection hose connection structure water purifier.

Another object of the present invention is to provide a direct connection end for a connection hose connection structure water purifier of a multi-stage water purification filter in which a connection hose can be quickly or easily engaged or separated with respect to an inlet and an outlet of a multi-stage water filter.

The connection hose connection structure of the multi-stage water filter for connecting the connection hose to the inlet or outlet of the multi-stage water filter for a water purifier in which a plurality of water filters are connected in series in an installation frame, A first connecting portion formed to be inserted into the inlet or outlet and being coupled to the first connecting portion in a watertight manner and a second connecting portion formed in the other side to be bent at a right angle to be fitted into the connecting hose, And a connection cap which is coupled to be surrounded and presses the connection hose to the second connection portion so that the connection hose is coupled in a watertight manner.

According to a preferred aspect of the present invention, a guide portion corresponding to the inlet or outlet is formed on both sides of the installation frame, and the EL storage is connected to the inlet or outlet through the guide.

According to a preferred aspect of the present invention, a cut-out portion is formed on the outer side of the guide portion so that the el arch can be fitted therein, and a pivoting groove and a stopper step are formed on the inner side of the guide portion, .

According to a preferred aspect of the present invention, a pressing flap is formed on the rear of the first connecting portion of the elec- trohousing, spaced at a predetermined angular interval, a cut-out groove corresponding to the pressing flap is formed on the outer side of the guiding portion, The pressing flap is pushed toward the inlet or outlet by the outer wall of the pivoting groove.

According to a preferred aspect of the present invention, when the el housed with the connecting hose is fitted into the guide portion and is rotated in the upward direction, the El storage is coupled to the inlet or outlet, and the El housing Is rotated downward in the guide portion to align the press flap with the cut-out groove to separate the El storage from the inlet or outlet.

According to a preferred aspect of the present invention, a first packing step is formed on an outer circumferential surface of the first connecting portion of the el keeping unit to be in close contact with the inlet or the inlet port when the el keeping unit is engaged, A second packing step is formed to be in close contact with an end of the connecting hose when the connecting hose is engaged.

According to a preferred aspect of the present invention, the inner circumferential surface of the connecting cap is provided with pressing protrusions that press the connecting hose toward the second connecting portion at predetermined angular intervals.

According to the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, the connection hose is connected to the inlet and the outlet of the multi-stage water filter using only the el keeping and the connection cap without using a fitting composed of a relatively large number of parts, As the number of parts required to connect the connecting hose to the inlet or outlet of the water filter is reduced, the cost and time required for manufacturing can be greatly reduced, and the leakage risk is significantly lowered as the number of parts is minimized due to the small number of parts There is an excellent effect that can be.

In addition, according to the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, when the el housed with the connection hose is fitted into the guide part of the installation frame by the connection cap and rotated in the upward direction, Alternatively, the connecting hose may be connected to the inlet or outlet of the multi-stage water filter through the elec- tric storage while the elec- tric storage is coupled to the outlet, and the elec- tric storage coupled with the connecting hose may be retracted in the downward direction It is possible to separate the connection hose from the inlet or the outlet of the multi-stage water filter by the simple operation so that the connection hose can be quickly or easily combined or separated from the inlet and the outlet of the multi- .

In addition, according to the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, the pressure flap is formed at a predetermined interval in the rear of the first connection part of the elastics, When the cutout groove is formed and the elapsed storage is coupled to the guide portion of the installation frame and then rotated in the upward direction in the rotation groove, the pressure flap is pressed toward the inlet or outlet side of the multi-stage water filter by the outer wall of the rotation groove, There is an excellent effect that the connecting portion is held in a state of being press-coupled to the inlet or outlet of the multi-stage water filter so that the first connecting portion of the elastics is watertightly coupled to the inlet or outlet of the multi-stage water filter.

According to the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, since the pressure protrusions protruding from the inner circumferential surface of the connection cap toward the second connection portion protrude at a predetermined interval, The connection hose is pressurized to the second connection portion by the connection cap, in particular the pressure projection, so that the connection hose and the second connection portion are coupled in a watertight manner, thereby preventing the water leakage phenomenon.

1 is a structural view of a connection hose connection structure of a multistage water filter according to an embodiment of the present invention;
FIG. 2 and FIG. 3 are explanatory diagrams showing the use state of the connection hose connection structure of the multistage water filter according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. , And this does not mean that the technical idea and scope of the present invention are limited.

The connection hose connection structure of the multistage water filter according to the embodiment of the present invention is characterized in that the multiphase water filter for the water purifier in which a plurality of water filters (1) The connecting hose 3 is connected to the inlet of the multi-stage water filter and the outlet 1a of the multi-stage water filter using only the eloquent storage 10 and the connecting cap 10 without using a fitting composed of a relatively large number of parts 1 to 3, one side is connected to the inlet or outlet 1a of the multi-stage water filter, and the other end of the first connection (10) in which a second connection part (13) is formed in which the first connection part (11) is formed and the other side is bent at a right angle and inserted into the connection hose (3) Combine to surround and pressing the hose connection (3) to the second connection 13 includes a connection cap 20 to the connecting pipes (3) to be coupled in watertight manner.

In this case, the liquid storage 10 corresponds to a right angle connection pipe connecting the connection hose 3 to the inlet or outlet port 1a of the multi-stage water filter at right angles. On one side thereof, the inlet or outlet 1a of the multi- And a second connecting portion 13 is formed at the other side of the first connecting portion 11 that is bent at a right angle with respect to one side and is inserted into the connecting hose 3 to be coupled thereto.

The inlet or outlet 1a of the multi-stage water filter and the first connecting portion 11 of the elec- tronic storage 10 are automatically sealed by the nipple coupling. In order to increase the watertightness, the first connecting portion 11 is provided with a packing ring It is preferable that the projections are integrally formed.

The outer surface of the first connecting portion 11 of the elec- tric storage 10 is closely attached to the inlet or outlet of the multi-stage water filter or the end of the outlet 1a when the elec- tric storage 10 is coupled to the outlet 1a, It is preferable that the first packing step 11a is formed. The first packing step 11a also acts as a sort of stopper step at the time of engagement of the elec- tric storage 10 with the inlet or outlet 1a of the multi-stage water filter.

The inlet or outlet 1a of the multi-stage water filter and the second connection portion 13 of the EL storage 10 are ensured to be watertight by the connection cap 20 to be described later and the second connection portion 13 A second packing step 13a is formed on the outer circumferential surface of the connecting hose 3 so as to closely adhere to the end of the connecting hose 3 when the connecting hose 3 is engaged. The second packing step 13a also acts as a sort of stopper step when engaging the connecting hose 3 to the second connecting part 13 of the el arch 10.

1, the multi-stage water filter is provided on both sides of the installation frame 5. A guide 7 corresponding to the inlet or outlet 1a of the multi-stage water filter is protruded And the el arch 10 is connected to the inlet or outlet 1a of the multi-stage water filter through the guide 7.

For this purpose, a cut-out portion 7a is formed on the outer side of the guide portion 7 so that the elbow 10 can be fitted with the connecting hose 3 coupled thereto, And a stopper step 7c for limiting the range of rotation of the el arch 10 is formed at the same time.

A pressing flap 15 is provided at the rear of the first connecting portion 13 of the EL storage 10 so as to maintain the pressurized state of the EL storage 10 with respect to the inlet or outlet 1a of the multi- A cutout groove 7d corresponding to the pressurizing flap 15 is formed on the outer side of the guide portion 7 so that the el arch 10 having the pressurizing flap 15 can be inserted therein .

Therefore, as the elbow 10 to which the connection hose 3 is coupled is coupled to the guide portion 7 and then rotated in the rotation groove 7b, the pressurization flap 15 is pushed to the outer side wall of the rotation groove 7b (Not shown) to the inlet or outlet 1a of the multi-stage water filter.

A connecting cap 20 is coupled to surround the second connecting portion 13 at the periphery of the second connecting portion 13 of the above-described EL storage 10, The connection hose 3 is connected to the second connection part 13 on the inner circumferential surface of the connection cap 20 by the connection hose 3 so that the connection hose 3 is coupled to the connection part 13, It is preferable that the pressing protrusions 21, which increase the watertightness, are protruded at predetermined angular intervals, for example.

Hereinafter, the method and overall operation of the connection hose connection structure of the multistage water filter according to an embodiment of the present invention will be described as follows:

The outer circumferential surface of the connecting hose 3 is radially inwardly engaged with the second engaging portion 13 by the connecting cap 20 when the second engaging portion 13 of the el arch 10 is fitted in the connecting hose 3, The connecting hose 3 is tightly coupled to the second engaging portion 13 of the el arch 10.

The elbow 10 to which the connecting hose 3 is coupled is pivoted upward in a state in which the elbow 10 to which the connecting hose 3 is coupled is fitted in the guide 7 and is positioned in the pivot 7b The first connecting portion of the el arch 10 is watertightly press-coupled to the inlet or outlet 1a of the multi-stage water filter. The pressurizing flap 15 and the cut-out groove 7d must be aligned when the elbow 10 to which the connecting hose 3 is coupled is fitted in the guide portion 7. [

The elastic storage 10 to which the connection hose 3 is coupled is rotated in the downward direction in the rotation groove 7b of the guide portion 7 to align the press flap 15 and the cut groove 7d, (10) can be separated from the inlet or outlet (1a) of the multi-stage water filter (10) simply by moving the combined elastics (10)

Therefore, in the case of the connection hose connection structure 1 of the multi-stage water filter according to the embodiment of the present invention, only the eloquent storage 10 and the connection cap 20 are used without using a fitting composed of a relatively large number of parts, The number of parts required to connect the connecting hose 3 to the inlet or outlet 1a of the multi-stage water filter is reduced by connecting the connecting hose 3 to the inlet and outlet 1a of the filter, The time can be drastically reduced, and the risk of leakage can be significantly reduced as the number of parts is minimized due to the smallest number of points.

In the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, the eloquent storage 10 to which the connection hose 3 is coupled is fitted into the guide part 7 of the installation frame 5, The connecting hose 3 is connected to the inlet or outlet 1a of the multi-stage water filter through the elec- trode storage 10 while the el-housing 10 is press-coupled to the inlet or outlet 1a of the multi-stage water filter The elbow 10 to which the connecting hose 3 is coupled is rotated in the downward direction in the guiding portion 7 of the mounting frame 5 to separate the elbow 10, The connection hose 3 can be quickly or easily engaged or separated with respect to the inlet and outlet 1a of the multi-stage water filter by a simple operation as the connection hose 3 separated from the inlet or outlet 1a of the multi- There is an excellent effect that can be.

In addition, in the case of the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, the pressurizing flaps 15 are spaced apart from each other by a predetermined angular interval at the rear of the first connecting portion 11 of the EL storage 10 And the cutout groove 7d corresponding to the pressurizing flap 15 is formed on the outer side of the guide portion 7 so that the el arch 10 is coupled to the guide portion 7 of the installation frame 5, The pressing flap 15 is pressed toward the inlet or outlet 1a of the multi-stage water filter by the outer wall of the rotating groove 7b so that the first connecting portion 11 of the elastics storage 10 is pushed into the multi- The first connecting portion 11 of the eloquent storage 10 is watertightly coupled to the inlet or outlet 1a of the multi-stage water filter by being held in pressurized engagement with the inlet or outlet 1a of the water filter.

In the connection hose connection structure of the multistage water filter according to the embodiment of the present invention, a pressing projection 21 for pressing the connection hose 3 to the second connection portion 13 side is formed on the inner peripheral surface of the connection cap 20 The connection hose 3 is inserted into the connection cap 20 and particularly the second connection portion 21 by the pressing projection 21 in a state in which the second connection portion 13 is fitted in the connection hose 3, So that the connection hose 3 and the second connection portion 13 are coupled to each other in a watertight manner.

1: Water filter
1a: inlet or outlet
3: Connection hose
5: Installation frame
7: Guide section
7a:
7b: pivoting groove
7c: stopper step
7d: Cutting groove
10: El keep
11: first connection
11a: first packing step
13: second connection
13a: second packing step
15: Pressure flap
20: connection cap
21: pressing projection

Claims (7)

A connection hose connection structure of a multi-stage water filter for connecting a connection hose to an inlet or an outlet of a multi-stage water filter for a water purifier in which a plurality of water filters are arranged in series in an installation frame,
A first connecting portion formed on one side of the inlet or outlet and formed to be watertightly coupled and a second connecting portion formed on the other side bent at a right angle to be fitted into the connecting hose;
And a connection cap which is coupled to surround the second connection portion of the EL storage and presses the connection hose to the second connection portion so that the connection hose is coupled in a watertight manner,
A guide portion corresponding to the inlet or outlet is formed on both sides of the installation frame,
A slit is formed on the outer side of the guide portion so that the el arch can be inserted therein and a rotation groove and a stopper step are formed on the inside of the guide portion so that the el arch can be rotated within a predetermined angle range,
Wherein the el enclosure is connected to the inlet or outlet through the guide. delete delete The method according to claim 1,
Wherein a pressing flap is formed on the rear side of the first connecting portion of the el-storing unit at a predetermined interval, a cutout groove corresponding to the pressing flap is formed on an outer side of the guiding unit, Wherein the pressure flap is pushed toward the inlet port or the outlet port by the outer wall of the pivotal groove as the pivoting member is pivoted in the pivotal groove. The method of claim 4,
The el housing is coupled to the inlet or the outlet when the el housing with the connecting hose is fitted into the guide and is pivoted upward so that the el housed with the connecting hose is moved downward Wherein when the pressure flap and the cutout groove are aligned with each other, the el arch is separated from the inlet or outlet. The method according to any one of claims 1, 4, and 5,
Wherein a first packing step is formed on the outer circumferential surface of the first connection part of the el-storage unit to be in close contact with an end of the inflow or outflow port when the el-storage unit is engaged, and on the outer circumferential surface of the second connection unit, And a second packing step is formed to be in close contact with an end of the connecting hose. The method according to any one of claims 1, 4, and 5,
Wherein the connection cap has an inner circumferential surface on which protruding protrusions protruding at a predetermined interval are formed to press the connection hose toward the second connection portion.

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