KR100873665B1 - Connector for purification filter - Google Patents

Abstract

A connector for a water purification filter is provided to lower costs, and to prevent leakage of residual water remained in the connector body when separating the water purification filter from a connector body by reducing the number of components including a flow path conversion valve and a plunger and simplifying structure of the connector. A water purification filter connector with which a water purification filter is removably combined comprises: a connector body(4) in which a raw water inlet(1), an outlet(2), a purified water moving passage(8), and a raw water moving passage(5) are formed; a flow path conversion valve plunger(6) discharging raw water flown in through the raw water inlet to the outside through the raw water moving passage and outlet when separating the water purification filter from the connector body; a first elastic member(7) pressurizing the flow path conversion valve plunger; a check valve plunger(9) opening or closing the purified water moving passage according to attachment or detachment of the water purification filter relative to the connector body; a second elastic member(10) pressurizing the check valve plunger; a valve seat(12) closing an upper end of the raw water moving passage when the water purification filter is combined with the connector body and opening the upper end of the raw water moving passage when the water purification filter is separated from the connector body; and a lower projection(6b) supporting a second O-ring(14) and preventing coming-off of the flow path conversion valve plunger due to a cross-sectional area difference between the lower projection and an upper projection(6a) caused by raw water flown in the raw water moving passage.

Description

Connector for water purification filter {connector for purification filter}

In the present invention, when the water filter is combined with the connector body, the raw water flowing through the connector body is purified by the water filter and then discharged through the outlet, and when the water filter is separated from the connector body, the water is introduced through the raw water inlet. The present invention relates to a connector for a water filter that allows raw water to be discharged directly through an outlet without being supplied to the water filter side.

More specifically, the water filter is detachably coupled to the connector body, and the connector for the water filter installed in the refrigerator, etc., reduces the number of parts such as a flow path switching valve plunger mounted inside the connector body to control the flow of raw water. The present invention relates to a connector for a water filter that can simplify the structure and lower the cost, and prevent leakage of residual water remaining in the connector body when the water filter is separated from the connector body.

Recently, household appliances such as refrigerators, water purifiers, coffee makers, washing machines, dishwashers, bidets, and the like use a water filter to filter tap water (clean water) with cleaner water (purified water) to supply each device to satisfy consumer needs. The trend is to meet.

Currently, some of the refrigerators being used have a built-in water purifier (water filter) in the refrigerator, so that the purified water in the refrigerator can be supplied to the outside of the refrigerator, or ice can be produced as purified water.

However, the above-mentioned water purifying device must cut off the supply of raw water to the water filter when the water filter is replaced. That is, when the filter is replaced, the supply of raw water is not made, and thus the supply is cut off to the outside of the refrigerator, or the ice cannot be made.

In view of this, Utility Model Application No. 2005-20726 discloses a connector for a water filter having a bypass function of a flow path.

The utility model registration application No. 20726 described above includes a connector body 110 constituting an external appearance, including an inlet 112 of raw water and an outlet 111 through which purified water or raw water exits, as described in the claims.

When the purified water filter 300 is installed, the raw water flows into the purified water filter 300, and when the purified water filter 300 is separated, the flow path switching valve blocks the flow of raw water to the purified water filter 300 and flows directly to the outlet 111. Plunger 114,

Backflow prevention valve 115 to enable the discharge of purified water when the water filter 300 is installed and to prevent the leakage of raw water when the water filter 300 is separated,

An elastic support 116 elastically supported between the flow path switching valve plunger 114 and the support 115a of the non-return valve 115 so that the flow path switching valve plunger 114 is interlocked;

A first support 118 supporting the flow path switching valve plunger 114,

It includes a second support 119 for supporting the non-return valve 115,

The aforementioned non-return valve 115 includes a non-return valve plunger 115c capable of vertically moving in accordance with the pressure of the purified water, a non-return elastic member 115b for elastically supporting the non-return valve plunger 115c, and a non-return elastic elastomer ( And a backflow preventing support 115a for supporting 115b) in the opposite direction to which the pressure of the water acts.

The water filter filter connector having a bypass function of the flow path disclosed in the above-mentioned Utility Model Registration No. 20726 has a flow path switching valve that controls the flow of raw water in accordance with the attachment and detachment of the water filter 300 to the connector body 110. Plunger 114, the non-return valve 115 for controlling the water or raw water flow in accordance with the removal of the water filter 300 to the connector body 110, the flow path switching valve plunger 114 and the non-return valve 115 Increasing the number of parts, such as the elastic support 116 to support) causes an increase in the cost, and the work time of assembling these parts is increased to increase the manufacturing cost has a problem of lowering the price competitiveness of the product.

In addition, the non-return valve 115 which allows discharge of purified water and prevents leakage of raw water according to the detachment of the water filter 300 to the connector body 110 may include a non-return valve plunger 115c and a non-return elastic body. Since it is configured as a 115b and the backflow prevention support member 115a, the failure occurs frequently due to the increase in the number of parts, so that a post-management cost is generated, which causes a problem of low reliability.

In addition, when separating from the connector body 110 to replace the water filter 300, due to the leakage of residual water remaining inside the connector body 110 when replacing the water filter 300 cleanliness cleanliness Falling, there is a problem that the user must take the inconvenience because subsequent work to remove the residual water is required.

Embodiment of the present invention, the water filter is detachably coupled to the connector body in the connector for the water filter installed in the refrigerator, etc., the number of parts, such as a flow path switching valve plunger mounted inside the connector body to control the flow of raw water The present invention relates to a connector for a water filter, which can reduce the cost, simplify the structure, and reduce the cost and manufacturing cost.

Embodiment of the present invention, by preventing the leakage of the residual water remaining inside the connector body when separating the water filter from the connector body, the water purification filter to prevent the surrounding contamination when replacing the water filter to ensure reliability from the user Related to the connector.

The connector for water filter according to the embodiment of the present invention,

In the water filter connector that the water filter is detachably coupled,

Raw water inlet through which raw water flows in, water outlet through which purified water or raw water is discharged, purified water moving passage through which purified water purified by water filter is moved to outlet, and raw water moving to move raw water flowing through raw water inlet to water filter A connector body in which a passage is formed,

It is equipped to open and close the raw water moving passage, and when the water filter is connected to the connector body, the raw water flowing through the raw water inlet is moved to the water filter side through the raw water moving passage, and when the water filter is separated from the connector body, the raw water inlet A flow path switching valve plunger for discharging raw water introduced through the raw water moving passage and the outlet;

A first elastic member elastically biased as an initial state to pressurize the flow path switching valve plunger and discharge the raw water introduced through the raw water inlet through the raw water moving passage and the outlet;

A check valve plunger mounted to open and close the purified water moving passage and opening and closing the purified water moving passage according to the attachment and detachment of the purified water filter to the connector body;

And a second elastic member for biasing the check valve plunger to close the purified water flow path in an initial state.

According to a preferred embodiment, it is formed inside the cap coupled to the above-described connector body, when the water filter is coupled to the connector body to close the top of the raw water flow passage by close contact with the flow path switching valve plunger, and the water filter from the connector body It includes a valve seat for opening the upper end of the feed passage in accordance with the separation of the flow path switching valve plunger.

A first O-ring mounted above the outer side of the flow path switching valve plunger and sealing the contact surface upon mutual contact with the valve seat;

A second O-ring mounted on the intermediate side of the outer side of the flow path switching valve plunger and sealing the contact surface when the lower end of the raw water movement passage is in contact with each other;

And a third O-ring mounted to an outer side of the check valve plunger and sealing the contact surface when in contact with the lower end of the purified water flow passage.

The raw water inlet and the outlet of the connector body described above are formed to have a 180 degree angle difference.

Is formed in the middle side of the flow path switching valve plunger larger than the cross-sectional area of the upper jaw of the flow path switching valve plunger for supporting the first O-ring to support the second O-ring, which is introduced into the raw water movement passage when separating the water filter from the connector It includes a lower jaw to prevent the flow of the flow path switching valve plunger due to the cross-sectional area with the upper jaw due to the raw water.

As described above, the connector for water filter according to the embodiment of the present invention has the following advantages.

The water filter is detachably coupled to the connector body, and the connector for the water filter installed in the refrigerator, etc., reduces the number of parts such as the flow path switching valve plunger mounted inside the connector body and reduces the cost by simplifying the structure. In addition, the manufacturing time can be reduced by shortening the assembly time.

The embodiment of the present invention prevents leakage of residual water remaining inside the connector body when the water filter is separated from the connector body, so that subsequent work of removing residual water leaking from the connector body when replacing the water filter is unnecessary. Therefore, the area around which the water filter is installed can be kept clean and it is convenient for the user.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to describe in detail enough to enable those skilled in the art to easily practice the invention, and therefore It does not mean that the technical spirit and scope of the present invention are limited.

As shown in Figures 1 to 3, the connector for water filter according to an embodiment of the present invention,

In the water filter connector that the water filter is detachably coupled,

Raw water inlet 1 through which raw water, such as tap water, flows, outlet 2 through which purified water (water filtered by a water filter) or raw water is discharged, and purified water by the purified water filter 3, outlet 2 A connector body 4 having a purified water moving passage 8 to be moved to) and a raw water moving passage 5 for moving the raw water flowing through the raw water inlet 1 toward the purified water filter 3;

It is mounted to open and close the raw water moving passage (5), and when the water filter (3) is coupled to the connector body (4) the raw water flowing through the raw water inlet (1) through the raw water moving passage (5) (3) side, and when separating the water filter (3) from the connector body (4) to discharge the raw water flowing through the raw water inlet (1) to the outside through the raw water moving passage (5) and outlet (2) Flow path switching valve plunger (6),

A first elastic member which biases the flow path switching valve plunger 6 and discharges the raw water introduced through the raw water inlet 1 to the outside through the raw water moving passage 5 and the outlet 2 as an initial state. 7) (compression coil spring is used),

A check valve plunger 9 mounted to open and close the purified water moving passage 8 and opening and closing the purified water moving passage 8 according to the attachment and detachment of the purified water filter 3 to the connector body 4;

And a second elastic member 10 (compression coil spring is used) which biases the check valve plunger 9 to close the purified water movement passage 8 in an initial state.

More preferably, it is formed in the cap 11 coupled to the connector body 4 described above, and when the water filter 3 is coupled to the connector body 4 by close contact with the flow path switching valve plunger 6. A valve seat for closing the upper end of the raw water moving passage 5 and opening the upper end of the raw water moving passage 5 as the flow path switching valve plunger 6 is separated when the water filter 3 is separated from the connector body 4. And (12).

A first o-ring 13 mounted above the outer surface of the flow path switching valve plunger 6 and sealing the contact surface upon mutual contact with the valve seat 12;

A second O-ring 14 mounted on the intermediate side of the outer side of the flow path switching valve plunger 6 and sealing the contact surface when the intermediate side protrusion 20 of the raw water movement passage 5 is mutually contacted;

It is mounted to the outer side of the check valve plunger (9), and includes a third o-ring (15) for sealing the contact surface when in contact with the lower end of the purified water moving passage (8).

The raw water inlet 1 and the outlet 2 of the connector body 4 described above are formed to have a 180 degree angle difference. Although not shown in the drawing, the raw water inlet 1 and the outlet 2 of the connector body 4 are formed in the same direction or have a 90 degree angle difference.

It is formed in the middle of the flow path switching valve plunger 6 larger than the cross-sectional area of the upper jaw 6a of the flow path switching valve plunger 6 supporting the above-mentioned first o-ring 13 to support the second o-ring 14. When the water purification filter 3 is separated from the connector body 4, the flow path switching valve plunger 6 is prevented from rising due to the cross-sectional area with the upper jaw 6a due to the raw water flowing into the raw water moving passage 5. And a lower jaw 6b.

In the figure, reference numeral 16 is mounted at the inlet side of the water filter 3, and guides the movement without mixing the raw water flowing into the water filter 3 and the purified water purified by the water filter 3 with each other. 17 is a filter element such as a nonwoven fabric, activated carbon, a hollow fiber membrane, a reverse osmosis membrane, and the like, which is embedded in the housing of the water filter 3, and 18 is a connector cover fixed to the connector body 4.

Hereinafter, an example of use of the connector for water filter according to the embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 3, when the water filter 3 is coupled to the connector body 4 described above, the upper end of the flow path switching guide 16 coupled to the inlet side of the water filter 3 is connected to the connector body. The lower end of the flow path switching valve plunger 6 built in (4) is pushed upwards by a predetermined distance in the drawing and pushed up a predetermined distance. This increases the compressive force of the elastic member 7 (compression coil spring is used) provided between the flow path switching valve plunger 6 and the cap 11.

At this time, the valve seat 12 is closed because the first O-ring 13 is in close contact with the valve seat 12 due to the movement of the flow path switching valve plunger 6 (the predetermined distance is increased) (the raw water movement path ( The top of 5) is closed). On the other hand, since the second O-ring 14 mounted on the middle side of the outer side of the flow path switching valve plunger 6 is separated from the protrusion 20 formed on the middle side on the inner side of the raw water movement passage 5 (opening the raw water movement) The lower side of the passage 5 is opened).

Therefore, the raw water flowing through the raw water inlet 1 formed in the radial direction in the connector body 4 flows into the raw water moving passage 5 of the connector body 4. The raw water flowing into the raw water moving passage 5 is guided by the flow path switching guide 16 communicating with the raw water moving passage 5 and moved in the housing of the water filter 3 (in the drawing, indicated by the arrow ↓ direction). Water) by a predetermined filter element 17 (reverse osmosis membrane or the like).

At this time, the raw water flowing into the raw water moving passage (5) through the raw water inlet (1) and then moved to the purified water filter (3) side, and the purified water moved to the purified water moving passage (8) after being filtered by the water purification filter (3) Can be prevented by the flow path switching guide 16.

That is, the purified water treated by the filter element 17 is guided so as not to be mixed with the raw water flowing into the purified water filter 3 by the flow path switching guide 16, and the purified water moving passage 8 formed in the connector body 4 is provided. To the side (in the drawing, indicated by the arrow ↑ direction). At this time, the lower end of the check valve plunger 9 is pressed by the upper end of the housing head of the water filter 3 to move a predetermined distance in the upward direction in the drawing, so that the purified water moving passage 8 is opened (at this time, the second elasticity is maintained). The compressive force of the member 10 is increased).

Therefore, the purified water moved to the purified water moving passage 8 is discharged to the outside of the connector body 4 through the outlet 2.

On the other hand, as shown in Figures 1 and 2, when separating the water filter 3 from the connector body 4 in order to replace the filter element 17 and the like of the above-described water filter 3, the first elastic The flow path switching valve plunger 6 is pushed down in the downward direction by the elastic restoring force of the member 7 (compression coil spring is used) and the water pressure flowing into the raw water moving passage 5. At this time, the compressive force of the first elastic member 7 provided between the flow path switching valve plunger 6 and the cap 11 is reduced to restore the initial state.

Further, the cross-sectional area of the lower jaw 6b formed on the middle side of the flow path switching valve plunger 6 is larger than the cross-sectional area of the upper jaw 6a of the flow path switching valve plunger 6 described above. Due to the difference in cross-sectional area thereof, lifting of the flow path switching valve plunger 6 is prevented due to the water pressure flowing into the raw water movement passage 5.

Therefore, since the first O-ring 13 is released from the valve seat 12 due to the movement of the flow path switching valve plunger 6 (a predetermined distance is lowered), the valve seat 12 is opened (the raw water movement path 5). Top is open). On the other hand, the second O-ring 14 mounted on the intermediate side of the flow path switching valve plunger 6 is closed because it is in close contact with the protrusion 20 formed on the inner surface of the raw water movement passage 5 to maintain the airtight state (thereby The raw water flowing into the raw water moving passage 5 blocks the movement of the raw water filter 3 to the flow path switching guide 16 side (the lower side of the raw water moving passage 5 is closed).

Therefore, the raw water flowing into the raw water moving passage 5 of the connector body 4 through the raw water inlet 1 is discharged to the outside through the outlet 2.

At this time, by pressing the check valve plunger 9 by the elastic force and the water pressure of the second elastic member 10 to close the purified water moving passage 8 (the third purified water moving passage 8 by the O-ring 15). Close to the protrusion (8a) formed on the inner side of the to maintain the airtight), the process of some of the raw water (raw water) flowing into the connector body (4) through the raw water inlet (1) is discharged to the outside through the outlet (2) Leaking through the purified water moving passage (8) is prevented.

As described above, the water filter for the water filter according to the embodiment of the present invention, the water filter in which the filter element 17 is built in the connector body 4 in which the raw water inlet 1 and the outlet 2 are radially formed. When combining (3), the raw water flowing into the connector body (4) through the raw water inlet (1) is supplied to the water filter (3) side, the purified water treated by the water filter (3) is purified water moving passage ( 8) and to the outside through the outlet (2).

On the other hand, when separating the water filter 3 from the connector body 4 described above, the raw water flowing into the connector body 4 through the raw water inlet 1 does not supply to the water filter 3 side, the outlet 2 ) Can be discharged directly to the outside.

At this time, when the purified water filter 3 is separated from the connector body 4, the purified water moving passage 8 is closed by the check valve plunger 9, so that the residual water remaining in the connector body 4 is purified water moving passage. In order to prevent leakage to the outside through (8), it is unnecessary to remove (cleaning operation) the residual water leaking when separating from the connector body 4 in order to replace the water filter 3.

In addition, since the operation of the valve for controlling the flow of raw water and purified water is simplified, the operation can be smoothed, thereby reducing the after-care costs.

1 is an excerpt of the main portion of the connector body for a water filter according to an embodiment of the present invention,

2 is a cross-sectional view showing that the water filter is separated with respect to the connector body for water filter according to the embodiment of the present invention;

3 is a cross-sectional view showing that the water filter is coupled to the connector body for the water filter according to the embodiment of the present invention.

* Explanation of symbols used in the main part of the drawing

One; Raw water inlet

2; Outlet

3; Water filter

4; Connector body

5; Enemies

6; Flow path switching valve plunger

7; First elastic member

8; Integer Transfer Path

9; Check Valve Plunger

10; Second elastic member

11; cap

12; Valve seat

13; First O-Ring

14; 2nd O-Ring

15; Third O-Ring

16; Euro Conversion Guide

17; Filter element

18; Connector cover

Claims (5)

delete delete delete delete In the water filter connector to which the water filter is detachably coupled: A raw water inlet 1 through which raw water flows, an outlet 2 through which purified water or raw water is discharged, a purified water moving passage 8 through which purified water purified by the purified water filter 3 moves to an outlet 2, A connector body 4 having a raw water moving passage 5 for moving the raw water flowing through the raw water inlet 1 toward the purified water filter 3; It is mounted to open and close the raw water moving passage (5), and when the water filter is coupled to the connector body (4), the raw water flowing through the raw water inlet (1) is moved to the water filter side through the raw water moving passage (5). And a flow path switching valve plunger 6 for discharging the raw water introduced through the raw water inlet 1 through the raw water moving passage 5 and the outlet 2 when separating the purified water filter from the connector body 4; The first elastic member 7 which biases the flow path switching valve plunger 6 to discharge the raw water introduced through the raw water inlet 1 through the raw water moving passage 5 and the outlet 2 as an initial state 7 ); A check valve plunger (9) mounted to open and close the purified water moving passage (8) and opening and closing the purified water moving passage (8) in accordance with attachment and detachment of the purified water filter to the connector body (4); A second elastic member (10) for biasing the check valve plunger (9) to elastically bias the initial condition to close the purified water flow passage (8); It is formed inside the cap (11) coupled to the connector body (4), the raw water moving passage (5) by close contact with the flow path switching valve plunger (6) when coupling the water filter (3) to the connector body (4) A valve seat 12 which closes an upper end of the water and opens the upper end of the raw water moving passage 5 according to the detachment of the flow path switching valve plunger 6 when the water purification filter 3 is separated from the connector body 4; And Is formed in the middle side of the flow path switching valve plunger 6 larger than the cross-sectional area of the upper jaw (6a) of the flow path switching valve plunger 6 for supporting the first O-ring 13, and supports the second O-ring 14, The lower part of the flow prevention valve plunger 6 is prevented from lifting due to the cross-sectional area with the upper jaw 6a due to the raw water flowing into the raw water movement passage 5 when separating the water filter 3 from the connector body 4. Connector for a water filter, characterized in that it comprises a jaw (6b).

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