ES2364711T3 - COUPLING TYPE ADAPTER WITH ONLY ONE TOUCH FOR A FILTER. - Google Patents

Abstract

A quick connect / disconnect coupling type adapter (100) for detachably joining a filter body (200) provided at one end thereof with a cylindrical fluid passage (200a) having a collar flange (215) with a push rod (220d) fixedly installed in the fluid passage, including the quick connect / disconnect coupling type adapter: an adapter body (10) formed on both upper sides thereof with an inlet port (10in ) and an exit port (10out) and formed in a center thereof with a central channel that communicates with the entrance and exit ports; a check valve (20) installed in the central channel in order to adjust the inlet flow or the cut of natural water flowing through the inlet port; an upper cover (10a) to cover an upper portion of the central channel; a lower cover (10b) installed in a lower portion of the adapter body and formed with a central hole that communicates with the central channel of the adapter body, the cylindrical fluid passage (200a) of the filter body being inserted into the central hole of the lower deck; and a coupling unit provided on the lower cover to quickly connect / disconnect the filter body (200), the adapter being characterized in that the coupling unit includes: a pair of sliding plates (50A and 50B) having opposite inclined elongated holes (50a and 50b) and opposite arcuate sections (51a and 51b), whose end portions are formed with inclined portions (51a 'and 51b'), to be detachably coupled to the collar flange (215) formed in the fluid passage cylindrical (200a) of the filter body (200), the sliding plates (50A and 50B) being elastically polarized towards each other by means of a spring (S); and a release pushbutton unit (40) that includes two parallel bars formed with projections (40a) inserted into the elongated inclined holes (50a and 50b), respectively, and a horizontal push bar connecting the ends of the parallel bars between yes, in which, when the filter body (200) is removed from the adapter, the horizontal push bar is pushed, so that the parallel bars move in a forward direction while pushing the side walls of the inclined elongated holes (50a and 50b) so that the sliding plates (50A and 50B) move horizontally perpendicular to a direction of movement of the projections away from each other, thereby allowing the filter body (200) to disassemble of the adapter (100).

Description

Technical field

The present invention generally relates to a coupling type adapter for detachably joining a filter body according to the preamble of claim 1 used for a bidet, a water purifier, a water ionizer, a refrigerator or a generator of functional water.

Prior art

In general, a mechanism, such as a bidet, a water purifier, and a water ionizer, may include a filter to filter or purify water and an adapter to allow the filter to adapt to such a mechanism.

Conventionally, the adapter and the filter body are mounted with each other using a separate coupling unit or manufacturing the adapter and filter in the form of complex male and female clamps, respectively. In addition, the filter body is generally removed from the adapter by a complex disassembly procedure or by using a separate disassembly unit. In addition, a separate natural water inlet flow cutting unit is necessary in order to prevent natural water from being fed from the mechanism when the filter body is replaced with a new one.

However, such a conventional structure for the filter body and the adapter entails a complex coupling or uncoupling process when the filter body is coupled to or disengaged from the adapter, thereby resulting in a difficulty in the work of changing the filter. In addition, if the mechanism is equipped with a plurality of filter bodies, such complex filter change work must be carried out with respect to the plural filter bodies, so that users must need to maintain their products in the service center of the manufacturing company or should call a service agent to change their filter bodies for new ones.

Document US-2001/0045386-A1 shows an adapter that comprises all the features of the preamble of claim 1. Particularly, Fig. 10b and 10c show an adapter coupling unit, the coupling unit comprising a lever that is driven by a spring 376 for a simple joint and disengagement.

Document US-4,559,136-A shows an aquarium filtering system with a filter assembly and means for detachably connecting said filter assembly to a pump housing.

Additionally, US-5,914,037-A shows a filter device for a water filter. Said filter device includes a coupling device and a filter cartridge.

Disclosure of the invention

Technical problem

The present invention is directed to a coupling type adapter that substantially avoids one or more problems due to the limitations and disadvantages of the related art.

It is an object of the present invention to provide a coupling type adapter used for a mechanism, such as a bidet, a water purifier, a water ionizer, a refrigerator, or a functional water generator, in which a joint is possible Reliable to a filter body, even in the case of frequent use.

Technical solution

To achieve this object and other advantages in accordance with the purpose of the invention, as expressed and described extensively herein, an adapter of the coupling type is provided comprising the features of claim 1.

According to a preferred embodiment of the present invention, there is provided a multiple adapter joined with a plurality of filter bodies, the multiple adapter comprising: a plurality of coupling type adapters aligned in parallel with each other; backflow prevention valves installed in the outlet ports of the one-touch coupling type adapters; and plug type connection members installed between the inlet ports and the outlet ports of the adjacent adapters such that adjacent adapters rotate relative to each other, in which o-rings are provided between the peripheral surfaces external of the plug-type connection members and the inner peripheral surfaces of the inlet ports and the outlet ports.

The partially arched collar flange is provided at one end thereof with an inclined portion.

According to a further preferred embodiment of the present invention, the check valve includes a

5 valve body having an inclined seat surface and communicating with the inlet port, a fluid passage extending from the valve body to a lower portion of the central channel of the adapter body, a valve plunger that it has a piston head closely adjacent to the inclined seat surface and that is installed in the fluid passage such that the valve piston opens / closes the fluid passage when the filter body is mounted with or disassembled from the adapter while moving in the fluid passage by means of a pressure force applied to it from the filter assembly, and a valve spring supported by the upper cover while elastically polarizing the piston head installed on the inclined seat surface of the body valve.

According to a preferred embodiment of the present invention, a reflux prevention valve is installed in

15 the outlet port of the adapter body in order to prevent residual purified water remaining in a rear portion of the outlet port from flowing back or dripping from the outlet port when the filter body is disassembled from the adapter.

According to a preferred embodiment of the present invention, the horizontal push bar of the release push button unit is formed with a mounting hole for a safety pin to prevent the push bar from being pushed in order to prevent The filter body is unintentionally separated from the adapter.

Additional advantages, objects and features of the invention will be set forth in part in the description that follows and

25 in part they will become apparent to those who have basic knowledge in the field by examining the following or can be learned by the practice of the invention. The objectives and other advantages of the invention can be realized and achieved by the structure indicated in particular in the description and written claims of this document as well as the attached drawings.

Brief description of the drawings

The accompanying drawings, which are included to provide a greater understanding of the invention and are incorporated into and constitute a part of this application, illustrate embodiment (s) of the invention and together with the description serve to explain the principle of the invention. . In the drawings:

35 FIG. 1 shows a longitudinal sectional view and a side view of an adapter for joining a filter body according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A shown in FIG. one;

FIG. 3 shows a front view and a plan view for an adapter release button shown in FIG. one;

FIG. 4 shows a plan view of a sliding plate of an adapter shown in FIG. 1 and a sectional view taken along line A-A shown in the plan view;

Fig. 5 is a view showing a filter body attached with an adapter shown in FIG. 1 according to an embodiment of the present invention;

FIG. 6 illustrates an adapter shown in FIG. 1 and a filter body shown in FIG. 5, which are separated from each other according to an embodiment of the present invention;

FIG. 7 illustrates an adapter shown in FIG. 1 and a filter body shown in FIG. 5 just before the filter body is mounted on the adapter according to an embodiment of the present invention;

55 FIG. 8 illustrates an adapter shown in FIG. 1 and a filter body shown in FIG. 5 when mounted with each other according to an embodiment of the present invention;

FIG. 9 is a view showing a disassembly procedure of the filter body shown in FIG. 5 of the adapter shown in FIG. 1A in the mounting state shown in FIG. 8 according to an embodiment of the present invention; Y

FIG. 10 is a view showing a structure of a multiple adapter for installing a plurality of filter bodies therein according to an embodiment of the present invention.

Mode for the invention

Hereinafter, a preferred embodiment of the present invention will be explained with reference to the accompanying drawings.

FIG. 1 shows a longitudinal sectional view and a side view of an adapter for joining a filter body according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A shown in FIG. 1, FIG. 3 shows a front view and a plan view for an adapter release button shown in FIG. 1, and FIG. 4 shows a plan view of a sliding plate of the adapter shown in FIG. 1 and a sectional view taken along line A-A shown in the plan view.

With reference to FIGS. 1 to 4, an adapter 100 according to an embodiment of the present invention is a one-touch coupling type adapter to allow a filter body formed at one end thereof with a cylindrical passage having a collar flange It can be detached with adapter 100.

The one-touch coupling adapter 100 of the present invention includes an adapter body 10 formed on both upper sides thereof with an inlet port 10in, a natural water inlet hole 10c, a water outlet hole purified 10d, and a purified water outlet port 10out and formed in a center thereof with a central channel communicated with the aforementioned inlet and outlet ports and holes, a check valve 20 installed in the central channel in order to adjust the input flow

or the cut of natural water flowing through the inlet port 10in, an upper cover 10a to cover an upper portion of the central channel, a lower cover 10b installed in a lower portion of the adapter body 10 such that the lower cover 10b communicate with the central channel, sliding plates 50A and 50B installed on the lower cover 10b and moved in opposition to each other in order to detachably mount the filter body to the adapter 100, and a release push button unit 40 to release the mounted state between the sliding plates 50A and 50B and the filter body and therefore disassemble them.

The check valve 20 includes a valve body that has an inclined seat surface 20f and communicates with the inlet port 10in, a fluid passage 20a extending from the valve body to a lower portion of the central channel, a valve plunger 20c having a piston head closely adjacent to the inclined seat surface 20f and which is installed in the fluid passage 20a such that the valve plunger 20c can open / close the fluid passage 20a when the Filter body is mounted with or disassembled from the adapter while moving in the fluid passage 20a by means of a pressure force applied to it from the filter body, and a valve spring 20d supported by the top cover 10a while polarizing elastically the piston head installed on the inclined seat surface 20f of the valve body.

The piston head of the valve piston 20c is provided with an O-ring 20e in order to seal a gap formed between the piston head and the inclined seat surface 20f.

A natural water passage 20b is formed in the fluid passage 20a so that natural water is supplied from the inlet port 20in by the natural water passage 20b. The valve piston 20c includes the piston head provided with the O-ring 20e and is subjected to an elastic bias force of the valve spring 20d supported by the upper cover 10a, such that the piston head of the valve piston 20c makes close contact with the inclined seat surface of the valve body unless an external force is applied to the piston head of the valve piston 20c.

According to an embodiment of the present invention, a reflux prevention valve 30 (i.e., check valve) is installed in the purified water outlet port 10out of the adapter body 1 in order to prevent purified water from Residual that remains at a rear portion of the purified water outlet port 10out flows back or drips from the purified water outlet port 10out.

The sliding plates 50A and 50B have elongated inclined holes 50a and 50b, which are opposite each other, and opposite arcuate sections 51a and 51b for detachably attaching to a collar flange (215, see FIG. 5) provided in an inlet portion of the filter body to the adapter 100 by association with each other. The sliding plates 50A and 50B are polarized one in opposition to the other by means of a spring mounted on a spring mounting projection 50s. The end portions of the arcuate sections 51a and 51b of the slide plates 50A and 50B are formed with inclined portions (see, 51b 'in FIG. 4) in order to allow the filter body to easily join with the arcuate sections 51a and 51b while moving along the inclined portions.

As a consequence, when the filter body 200 is mounted with the adapter 100, the collar flange 215 provided in the inlet portion of the filter body moves upward along the inclined portion 51b 'of the arcuate sections 51a and 51b of the sliding plates 50A and 50B while horizontally moving the sliding plates 50A and 50B in the left and right directions. When the collar flange 215 moves up beyond the inclined portion 51b 'of the arcuate sections 51a and 51b of the sliding plates 50A and 50B, the sliding plates 50A and 50B can return to their initial position by means of force of polarization of the springs S so that the filter body is joined with the sliding plates 50A and 50B.

The release pushbutton unit 40 includes two parallel bars formed with projections 40a inserted in the elongated inclined holes 50a and 50b and a horizontal push bar that connects the ends of the parallel bars with each other. When it is necessary to disassemble the filter body 200 of the adapter 100, a user pushes the release button unit 40 in such a way that the release button unit 40 moves in a forward direction. At this time, the projections 40a inserted in the inclined elongated holes 50a and 50b of the sliding plates 50A and 50B also move in the forward direction along the elongated elongated holes 50a and 50b while making contact with the side walls of the elongated inclined holes 50a and 50b, such that the sliding plates 50A and 50B move horizontally in the left and right directions perpendicular to the direction of movement of the projections 40a of the release push-button unit 40. As a result, the plates Slides 50A and 50B move away from each other so that the filter body 200 can be removed from the adapter 100.

The horizontal push bar of the release pushbutton unit 40 is formed with a mounting hole 45 for a safety pin to prevent the push bar from being pushed in order to prevent the filter body 200 from separating so unintended adapter 100.

According to another aspect of the present invention, the filter body 200 detachably joins with the one-touch coupling adapter 100 shown in FIG. one.

FIG. 5 shows the filter body 200 according to an embodiment of the present invention.

As shown in FIG. 5, the filter body 200 includes an outer housing 210 formed in an inlet portion thereof with a cylindrical fluid passage 200a having a collar flange, a filter member 240 installed in the outer housing spaced from an inner wall of the external housing, and a water guide 220 installed between an upper end of the filter member 240 and the cylindrical fluid passage 200a of the external housing 210 in order to guide the natural water to the filter member 240 when the water is introduced into the same by the check valve of the one-touch coupling adapter 100 and guiding the purified water by the filter member 240 to the purified water outlet port 10out of the one-touch coupling adapter 100. Water guide 220 includes an annular partition wall 220a that forms a passage of natural water inlet flow through the check valve and to prevent natural water from mixing with purified water, a natural water path transfer passage 220b to guide the natural water from the inlet flow passage to a flow space formed between the side wall of the filter member and the inner wall of the external housing, a purified water outlet passage 220c installed on the upper side of the filter member to discharge the water introduced from the flow space in and purified by the filter member to an outside by the outside of the inlet flow passage of the partition wall, and a push rod 220d installed in an inner central portion of the annular partition wall 220a in order to open the check valve while making contact with the valve plunger 20c of the check valve. As a result, natural water is introduced from the check valve to the flow space by the inlet passage passage of the partition wall, filtered by the filter member while flowing from the lower portion to the upper portion of the filter, and discharged to the outside by the outlet passage of purified water 220c (ie, water flowing in the directions of the arrows as shown in FIG. 8).

The filter member 240 includes at least one selected from the group consisting of a hollow fiber filter, a non-woven fabric filter, an activated carbon filter, a reverse osmosis membrane filter, and a functional ceramic filter. One of the filter members mentioned above or at least two of the filter members mentioned above may form the filter body.

FIGS. 6 to 9 show the procedure for assembling or disassembling the filter body 200 to or from the coupling type adapter with a single touch 100.

FIG. 6 illustrates the adapter shown in FIG. 1 and the filter body shown in FIG. 5, which are separated from each other according to an embodiment of the present invention.

In the state in which the adapter and the filter body are separated from each other as shown in FIG. 6, the sliding plates 50A and 50B of the adapter 100 are polarized so that they make contact with each other by means of the spring. In addition, the projections 40a of the release pushbutton unit 40 inserted in the inclined elongated holes 50a and 50b are positioned at a starting point of the inclined elongated holes 50a and 50b (i.e., a lower portion in the plan view shown in FIG. 8).

Furthermore, since the check valve 20 installed in the central channel of the adapter is polarized downwards by means of the valve spring 20d, the O-ring 20e makes close contact with the inclined seat surface 20f formed in the valve body 20a so that the natural water passage is closed by means of the O-ring 20e, thus cutting off the natural water inlet flow.

FIG. 7 illustrates the adapter shown in FIG. 1 and the filter body shown in FIG. 5 just before the filter body is mounted on the adapter according to an embodiment of the present invention, and FIG. 8 illustrates the adapter shown in FIG. 1 and the filter body shown in FIG. 5 when mounted with each other according to an embodiment of the present invention.

The filter body 200 is mounted on the adapter 100 by the following procedure.

First, if a user pushes the filter body 200 upwardly into the hole in the central channel formed in a lower portion of the adapter 100, the collar flange 213 provided in the upper inlet portion of the outer housing 210 of the body of Filter 200 moves upward while making contact with the inclined portions 51a 'and 51b' of the arcuate sections 51a and 51b of the sliding plates 50A and 50B.

As a consequence, the sliding plates 50A and 50B move away from each other. At the same time, the projections 40a inserted in the inclined elongated holes 50a and 50b move along the inclined elongated holes 50a and 50b. At this time, the projections 40a inserted in the inclined elongated holes 50a and 50b are positioned in intermediate portions of the inclined elongated holes 50a and 50b as shown in FIG. 7.

At this time, the adapter 100 and the filter body 200 are kept in a sealed state. In detail, FIG. 7 illustrates the filter body 200 just before the filter body 200 is mounted with the adapter 100, that is, just before the push rod 220d installed in an inner central portion of the annular partition wall 220a formed in a front end of the water guide 220 pushes the lower end of the valve plunger 20c installed in the fluid passage 20a of the check valve. Therefore, the o-ring 20e of the valve piston 20c still makes contact with the inclined seat surface 20f of the valve body so that the natural water passage 20b is maintained in a closed state by means of the o-ring 20e of the piston of valve 20c. At the same time, an O-ring 20g, which is installed at a lower end of the fluid passage 20a in order to prevent natural water from leaking, makes contact with the inner surface of the annular partition wall 220a, which is installed in the filter body 200 in order to prevent natural water from mixing with the purified water, thereby establishing a seal between the fluid passage 20a and the annular partition wall 220a. In addition, at least one O-ring 230 is installed around the cylindrical fluid passage provided at the front end of the filter body in order to prevent purified water from leaking. The O-ring 230 makes contact with the inner surface of the central channel of the adapter 100 in order to establish a seal between the filter body and the adapter. As a consequence, the natural water passage is provided separately from the purified water passage. In addition, purified water is maintained in the fluid passages formed in the filter body and the adapter without leaking outwards.

If the collar flange 215 once it is moved upwardly beyond the inclined portions 51a 'and 51b' of the sliding plates 50A and 50B, the sliding plates 50A and 50B are polarized one against the other by means of the spring S so that the sliding plates 50A and 50B move while facing each other, so that the collar flange is restricted by means of the sliding plates 50A and 50B. As a consequence, the filter body 200 is mounted with the adapter 100.

At this time, the release button unit 40 is ejected out of the adapter 100 as the projections 40a inserted in the elongated inclined holes 50a and 50b of the sliding plates 50A and 50B move slidably in the forward direction. At this time, the projections 40a inserted in the elongated inclined holes 50a and 50b of the sliding plates 50A and 50B are slightly separated from the bottom point of the inclined elongated holes 50a and 50b as shown in FIG. 8.

While the filter body 200 is being mounted with the adapter 100, the push rod 220d of the filter body 200 can push the valve plunger 20c of the check valve 20 installed in the adapter 100 in the upward direction, so that the o-ring 20e that makes contact with the inclined seat surface 20f is separated from the inclined seat surface 20f so that the natural water passage 20b opens. Since the check valve 20 communicates with the inlet port 10in of the adapter body 10, if the check valve 20 is opened, the natural water flowing through the inlet port 10in of the adapter body 10 can flow in of the annular partition wall 220a of the water guide 220 through the natural water passage 20b of the fluid passage 20a formed in the center of the check valve.

As shown in FIG. 8, the natural water introduced into the filter body is prevented from mixing with the purified water by means of the annular partition wall 220a installed at the front end of the water guide 220 aligned between the filter member and the port of entrance, and the O-ring 20g. In addition, natural water flows through the flow space between the inner wall of the outer housing 210 and the side wall of the filter member 240 while passing through the transfer passage of the natural water path 220b. Then, the natural water is filtered as it passes through the filter member 240 and flows in the upward direction. Thus, the natural water filtered by the filter member 240 can flow into a space defined by the outer surface of the annular partition wall 220a, the outer surface of the fluid passage 20a of the check valve and the inner surface of a neck section formed at the front end of the filter body. The purified water is then discharged outside through the purified water space 10e, the purified water outlet orifice 10d and the purified water outlet port 10out. As a result, water flows along the paths according to the directions of the arrows as shown in the drawing.

When the filter body has been mounted with the adapter, a safety pin is inserted into the mounting hole of the safety pin 45 of the release button unit 40 such that the release button unit 40 cannot be move, thus preventing the filter body from unintentionally separating from the adapter.

FIG. 9 is a view showing a disassembly procedure of the filter body shown in FIG. 5 of the adapter shown in FIG. 1 in the mounting state shown in FIG. 8 according to an embodiment of the present invention.

If it is necessary to change the filter body 200 of the adapter, a user removes the safety pin of the release button unit 40 and pushes the release button unit 40.

If the user pushes the release button unit 40, the release button unit 40 moves in the forward direction together with the projections 40a fixed to the release button unit 40. Since the projections 40a are inserted into the inclined elongated holes 50a and 50b of the sliding plates 50A and 50B, the forward movement of the projections may cause the sliding plates 50A and 50B to move away from each other. Therefore, the sliding plates 50A and 50B, which grip the collar flange 215 of the filter body can be moved in the left and right directions opposite each other so that the filter body can be separated from the adapter. At this time, the pressure force of the push rod 220d applied to the valve piston 20c is released so that the valve piston 20c moves in the downward direction caused by the polarizing force of the valve spring 20d. Thus, the O-ring 20e of the valve piston makes close contact with the inclined valve seat surface 20f of the valve body, thereby cutting off the natural water inlet flow.

According to yet another aspect of the present invention, a multiple adapter attached with a plurality of filter bodies 200a, 200b, 200c, 200d and 200e is provided. FIG. 10 shows the multiple adapter.

The multiple adapter includes a plurality of one-touch coupling adapters 100a, 100b, 100c, 100d and 100e (or 100 ') aligned in parallel to each other, reflux prevention valves (30, see FIG 1) installed on the outlet ports of the one-touch coupling adapters 100a, 100b, 100c, 100d and 100e, and plug type 150 connection members installed between the inlet ports and the outlet ports of adjacent adapters.

In products equipped with a plurality of filter bodies, such as water purifiers or water ionizers, each filter body has its own function and lifespan, so that the filter bodies are selectively changed when the shelf life expires of the filter bodies. At this time, the natural water inlet flow must be cut during the filter body change work.

However, the multiple adapter according to the present invention includes the check valve 20 therein, so that it is not necessary to perform additional work for cutting the inlet flow of natural water during the filter body change work. That is, according to the present invention, the user can simply change the filter body with a new one by separating the old filter body from the adapter and attaching a new filter body to the adapter while pushing the release button unit. In addition, the job of changing the filter body can be carried out simply by separating the old filter body from the adapter by rotating the old filter body relative to the adapter and attaching the new filter body to the adapter by rotating the filter body new in relation to the adapter.

Preferably, a gap formed between an outer peripheral surface of the plug connecting member 150 and the inner peripheral surfaces of the inlet and outlet ports is sealed by means of the O-ring. In addition, each individual adapter of the multiple adapter can be rotated around the plug-type connection member such that the lower cover 10b installed in the lower portion of the adapter body 10 can be rotatably moved towards the user, so that the user can easily and conveniently perform the filter change job.

The single or multiple coupling adapter with a single touch and the filter body detachably connected with the single or multiple coupling adapter with a single touch can be provided as a part of various water purification systems.

The preceding embodiments are merely exemplary and should not be construed as limiting the present invention. The present teachings can be easily applied to other types of apparatus. The description of the present invention is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.

Industrial applicability

As described above, the present invention provides a coupling type adapter with a single

5 touch and a filter body in which the filter body used for a mechanism, such as a bidet or a refrigerator, is easily mounted with or disassembled from the adapter by a one-touch coupling so that the body Filter adapts easily to the mechanism. Furthermore, the present invention provides a multiple adapter capable of attaching a plurality of adapters in series such that a plurality of filter bodies used for a water purifier, a water ionizer or a functional water generator are joined together.

10 Detachable with the multiple adapter using a one-touch coupling. As a consequence, inexperienced people, such as women or children, can easily change the filter for a new one at home without using an additional change tool. According to the present invention, it is not necessary to carry out additional work for cutting the inlet flow of natural water during the filter change work, and the purified water remaining in the fluid passages is prevented from flowing back or dripping from the fluid passages, so that you can

15 improve reliability and satisfaction for products.

Claims (5)

1. A quick connect / disconnect coupling type adapter (100) for detachably joining a filter body (200) provided at one end thereof with a cylindrical fluid passage (200a) having a collar flange ( 215) with a push rod (220d) fixedly installed in the fluid passage, including the quick connect / disconnect coupling type adapter: an adapter body (10) formed on both upper sides thereof with an inlet port (10in) and an exit port (10out) and formed in a center of the same with a central channel that communicates with the entrance and exit ports; a check valve (20) installed in the central channel in order to adjust the inlet flow or the cut of natural water flowing through the inlet port; an upper cover (10a) to cover an upper portion of the central channel; a lower cover (10b) installed in a lower portion of the adapter body and formed with a central hole that communicates with the central channel of the adapter body, the cylindrical fluid passage (200a) of the filter body being inserted into the central hole of the lower deck; and a coupling unit provided in the lower cover to quickly connect / disconnect the filter body (200), the adapter being characterized in that the coupling unit includes: a pair of sliding plates (50A and 50B) having opposite oblong elongated holes (50a and 50b) and opposite arcuate sections (51a and 51b), whose end portions are formed with inclined portions (51a 'and 51b'), to engage detachable form to the collar flange (215) formed in the cylindrical fluid passage (200a) of the filter body (200), the sliding plates (50A and 50B) being elastically polarized towards each other by means of a spring (S ); Y a release pushbutton unit (40) that includes two parallel bars formed with projections (40a) inserted into the elongated inclined holes (50a and 50b), respectively, and a horizontal push bar connecting the ends of the parallel bars to each other , in which, when the filter body (200) is removed from the adapter, the horizontal push bar is pushed, so that the parallel bars move in a forward direction while pushing the side walls of the inclined elongated holes ( 50a and 50b) so that the sliding plates (50A and 50B) move horizontally perpendicular to a direction of movement of the projections away from each other, thereby allowing the filter body (200) to be removed from the adapter (100).

2.

 The quick connect / disconnect coupling type adapter according to claim 1, wherein a multitude of adapters (100a, 100b, 100c, 100d, and 100e) are arranged in parallel with each other in such a way that backflow prevention valves (30) are installed in the outlet ports of the quick connect / disconnect type adapters; and plug-type connection members (150) are installed between the inlet ports and the outlet ports of the adjacent adapters such that the adjacent adapters rotate relative to each other, in which o-rings are provided (151) between the outer peripheral surfaces of the plug-type connection members (150) and the inner peripheral surfaces of the inlet ports and the outlet ports.

3.

 The quick connect / disconnect coupling type adapter according to claim 1, wherein the check valve (20) includes a valve body that has an inclined seat surface (20f) and communicates with the port inlet (10in), a fluid passage (20a) extending from the valve body to a lower portion of the central channel of the adapter body, a valve piston (20c) having a piston head closely adjacent to the inclined seat surface (20f) and which is installed in the fluid passage (20a) such that the valve piston (20c) opens / closes the fluid passage (20a) when the filter body (200 or 200 ' ) is mounted with or disassembled from the adapter (100 or 100 ') while moving in the fluid passage (20a) by means of a pressure force applied to it from the filter body, and a valve spring (20d) supported by the top cover (10a) while polarizing elastic attach the piston head installed on the inclined seat surface (20f) of the valve body.

Four.

 The quick connect / disconnect coupling type adapter according to claim 1, wherein a reflux prevention valve (30) is installed in the outlet port (10out) of the adapter body (10) for the purpose to prevent residual purified water remaining in a rear portion of the outlet port from flowing back or dripping from the outlet port when the filter body (200 or 200 ') is disassembled from the adapter (100 or 100').

5.

 The quick connect / disconnect coupling type adapter according to claim 1, wherein the horizontal push bar of the release pushbutton unit (40) is formed with a mounting hole (45) for a pin safety to prevent the push bar from being pushed in order to prevent the filter body (200) from unintentionally separating from the adapter (100).