KR102558137B1 - Filter head for water purifying system with by-pass line - Google Patents

Abstract

The present invention relates to a filter head for a rotary-coupled water purification system having a bypass path, and more particularly, to a filter head for a rotary-coupled water purification system having a bypass path capable of supplying raw water after being switched to a filtering or bypassing state according to the state of a bypass valve, and attaching and detaching a filter replaceably installed inside a water purifier simply by rotating it by a predetermined angle, thereby preventing leakage or failure even when high water pressure is applied.
According to the present invention, according to the user's control, raw water can be passed as it is, all raw water can be supplied to the filter so that water purification can be performed, or the discharge ratio of raw water and purified water can be easily adjusted within the range of 0 to 100%.

Description

Rotary coupling type water purification system filter head having a bypass path {FILTER HEAD FOR WATER PURIFYING SYSTEM WITH BY-PASS LINE}

The present invention relates to a filter head for a rotary-coupled water purification system having a bypass path, and more particularly, to a filter head for a rotary-coupled water purification system having a bypass path capable of supplying raw water after being switched to a filtering or bypassing state according to the state of a bypass valve, and attaching and detaching a filter replaceably installed inside a water purifier simply by rotating it by a predetermined angle, thereby preventing leakage or failure even when high water pressure is applied.

In modern society, distrust of tap water due to water pollution has increased, and the number of consumers who use water purified by a water purifier or bottled water as drinking water has increased, and this trend continues to increase in the future.

Usually, a water purifier in general use is composed of one or more filters for removing foreign substances included in raw water obtained through an inlet and discharging purified water, and an outlet for discharging the purified water out of the system.

When the filters of such a water purification system purify a certain amount of water for a certain period of time, the impurities contained in the water passing through the filter are loaded on the filter and its purification ability is lowered.

In the past, the filter exchange of such a water purification system was performed by fastening the supporter and the filter in the form of a male or female screw, or separating the connection hose and fitting used when connecting the filter and the filter or the filter and the supporter using a separate mechanism. In order to block the outflow of raw water, the source water is directly blocked using a raw water blocking device, the filter is replaced, and then the raw water blocking device is adjusted again.

KR 10-2013-0130941 A KR 10-1496224 B1 KR 10-2019-0029089 A

An object of the present invention to solve the above-mentioned problems is to provide a filter head for a rotary coupling type water purifying system having a bypass path capable of allowing all or part of raw water to pass as it is or flow into a filter according to the setting state of the bypass valve so that water purification can be performed.

Another object of the present invention is to provide a rotary coupling type water purifying system filter head having a bypass path in which a head for fixing a water filter is installed inside the water purifier and a filter connection pipe protruding from the upper end of the filter is directly connected to the head connection pipe to be fixed.

Another object of the present invention is to provide a filter head for a rotary coupling type water purifying system having a bypass path in which, when the filter is rotated by a predetermined angle in a state in which the filter is coupled to the head, the fixed wing installed on the upper end of the filter is inserted into the fixing guide formed on the bottom of the head so that the filter and the head are firmly coupled.

Another object of the present invention is to provide a filter head for a rotary coupling type water purifying system having a bypass path that allows only products of a predetermined standard or shape to be coupled by forming protrusions and grooves corresponding to each other on a surface where the filter and the head come into contact.

The present invention, which was devised to solve the above problems, has a structure in which raw water and purified water travel paths are selectively separated, and a filter 200 replaceably installed inside the water purification system is rotated by a certain angle to be detachable. A filter head for a water purifier, comprising: a head body; first connectors and second connectors respectively provided on both side surfaces of the head body; a first connection pipe connecting the first connector and the second connector to form a water movement path; a third connector and a fourth connector provided on both side surfaces of the head body, respectively; a second connection pipe connecting the third connector and the fourth connector to form a water movement path; a third connection pipe connecting the first connection pipe and the second connection pipe to form a water movement path; a fixing guide protruding from one surface of the head body; a rotating plate rotatably installed on one side of the head body; a first head connection pipe installed on one side spaced apart from the center of the rotating plate and selectively connected to the first connection pipe; a second head connection pipe installed at the center of the rotating plate and connected to the first connection pipe; A bypass control valve installed in the first connection pipe and selectively distributing raw water introduced through the first connection hole to the first head connection pipe or the third connection pipe.

Further comprising a matching protrusion protruding from one surface of the head body to have a predetermined cross-sectional shape, and a cross-sectional shape of the matching protrusion is configured to be the same as that of a cross-sectional shape of a matching groove protruding from a surface of a stopper constituted in the filter.

The bypass control valve allows some or all of the raw water introduced through the first connector to flow into the filter through the first head connection pipe or to the second connection pipe through the third connection pipe, and the sum of the amount of raw water flowing into the filter and the amount of raw water flowing into the second connection pipe is equal to the amount of raw water flowing through the first connector.

The first head connection pipe may be connected to or disconnected from the first connection pipe according to the rotation state of the rotating plate.

According to the present invention, according to the user's control, raw water can be passed as it is, all raw water can be supplied to the filter so that water purification can be performed, or the discharge ratio of raw water and purified water can be easily adjusted within the range of 0 to 100%.

In addition, the filter can be easily attached or detached just by rotating the filter, and no leakage or damage occurs when the filter and head are combined, and only certain filter products can be installed, so that there is no malfunction during use.

1 and 2 are perspective views showing the structure of a filter head according to an embodiment of the present invention.
3 is a perspective view showing the internal structure of the filter head;
4 is a plan view showing the structure of the upper surface of the filter head;
Figure 5 is a plan view showing a state in which the lid of the head body is removed.
6 is a cross-sectional view showing the internal structure of the filter head.
7 and 8 are cross-sectional views showing the flow of raw water in a bypass state.
Figure 9 is a cross-sectional view showing the flow of raw water in a filtering state.
10 is a cross-sectional view showing the flow of raw water in a state in which a bypass and a filtering state coexist.
11 is an exploded perspective view showing a structure in which a filter head is coupled to a filter;
12 is a partial perspective view showing a coupling structure of a filter.

Hereinafter, a “filter head for a rotational coupling type water purifying system having a bypass path” (hereinafter, referred to as a “filter head”) according to an embodiment of the present invention will be described with reference to the drawings.

1 and 2 are perspective views showing the structure of a filter head according to an embodiment of the present invention, FIG. 3 is a perspective view showing the internal structure of the filter head, FIG. 4 is a plan view showing the upper structure of the filter head, FIG. 5 is a plan view showing a state where the lid of the head body is removed, FIG. 6 is a cross-sectional view showing the internal structure of the filter head, FIGS. 7 and 8 are cross-sectional views showing the flow of raw water in a bypass state, and FIG. 10 is a cross-sectional view showing the flow of raw water in a state in which bypass and filtering conditions coexist, FIG. 11 is an exploded perspective view showing a structure in which a filter head is coupled to a filter, and FIG. 12 is a partial perspective view showing a coupling structure of a filter.

The filter head 100 of the present invention has a structure that is detachably coupled to a separate filter 200, and the filter head 100 is installed inside the water purifier. The filter 200 is a consumable and is provided to be replaced after a certain amount or a certain time of use.

The filter head 100 is installed in a water movement path installed inside the water purifier. Typically, a water purifier includes a part for receiving raw water (water before being purified) supplied from an external water inlet pipe or a raw water container, and a part for discharging purified water from which foreign substances are removed by the filter 200. The filter head 100 is installed on such a water movement path to guide raw water supplied from the outside into the purified water space of the filter 200, and guide purified purified water by filtering foreign substances in the filter 200 to the outside.

In addition, the filter head 100 of the present invention has a function of adjusting the movement path so that raw water passes (bypass) directly without flowing into the filter 200 . Preferably, the amount of raw water flowing into and filtered through the filter 200 and the amount of raw water passing along the bypass path can be relatively adjusted. That is, by adjusting the amount of filtered raw water from 0% to 100%, the amount of bypassed raw water can be varied from 100% to 0%.

The filter head 100 is preferably installed on the outer part of the body of the water purifier so that a worker or user can easily manipulate it, and the filter head 100 can be rotated outward to facilitate the rotation of the filter 200. Installed.

On the left and right sides of the outer surface of the filter head 100, connectors for allowing water to flow into and out of the filter head 100 are provided. The connector is connected to a flow path formed inside the filter head 100.

In the present invention, it is configured to have a coupling structure so that a plurality of filter heads 100 can be continuously connected and used. That is, a connector through which raw water or purified water discharged from the filter head 100 is introduced is separately provided, and a connector through which raw water or purified water is discharged is separately provided.

In addition, a bypass valve 122 is provided on the top or front of the filter head 100 to adjust the amount of filtered raw water and bypassed raw water. The bypass valve 122 selectively opens and closes an independent raw water movement path formed inside the filter head 100 to change the amount of raw water introduced into the filter 200 and the amount discharged without a water purification process.

A structure for fixing the filter 200 is formed on one surface of the filter head 100 . The fixing structure may be formed on the bottom or side surface of the filter head 100.

In the present invention, the place where the filter 200 is coupled is referred to as the "bottom and side" of the filter head 100 for description, but the bottom or side of the filter head 100 does not necessarily face downward or sideways in the water purifier, and may be installed upward.

A first connector 104, a second connector 106, a third connector 108, and a fourth connector 110 are provided on both sides of the filter head 100 forming the outer shape of the filter head 100, respectively. In the drawing of the present invention, it is shown that the first connector 104 and the third connector 108 are formed on the left side, and the second connector 106 and the fourth connector 110 are formed on the right side.

A first connection pipe 124 connecting the first connector 104 and the second connector 106 is installed inside the filter head 100, and a second connector 126 connecting the third connector 108 and the fourth connector 110 is installed. And the first connection pipe 124 and the second connection pipe 126 are connected to each other by a third connection pipe 128. If there is no operation of the valve, the water introduced through the first connector 104 is discharged through the second connector 106, and the water introduced through the third connector 108 is discharged through the fourth connector 110. However, depending on the state of the bypass valve 122 , water introduced through the first connector 104 may be divided and discharged through the second connector 106 and the fourth connector 110 . To this end, the bypass valve 122 divides the water introduced through the first connection port 104 into the filter 200 and the third connection pipe 128 and discharges the water.

The bypass valve 122 may move all of the water introduced through the first connection port 104 to the filter 200 through the first connection pipe 124 so as to be purified. In addition, the bypass valve 122 may move some or all of the water to the second connection pipe 126 through the third connection pipe 128 and discharge it to the outside of the filter head 100 in an unpurified state. Depending on the adjustment of the bypass valve 122, 100% to 0% of the raw water is moved to the filter 200 and purified, and the remaining raw water is bypassed and discharged without being purified.

A pipe through which raw water is introduced or discharged and a pipe through which purified water is introduced or discharged are respectively connected to the first connection port 104 to the fourth connection port 110 . Depending on the installation type, it is common for the first connector 104 and the third connector 108 to be inlets, and the second connector 106 and fourth connector 110 to be outlets, but the opposite movement path may be formed.

A fixing guide 112 is protruded at a predetermined height toward the inside of the inner edge of the filter head 100 . The fixing guide 112 has a space of a certain size formed therein, into which the fixing blades 206 formed on the filter 200 are inserted. When the filter 200 is rotated to one side while being coupled to the filter head 100, the filter 200 is fixed to the filter head 100 while the fixed blade 206 moves inward of the fixing guide 112. In some cases, it is also desirable to form a chin on the inner surface of the fixed guide 112 to prevent the fixed blade 206 from easily coming out.

A rotating plate 114 is rotatably installed on the bottom of the filter head 100 . The rotation plate 114 is rotatably installed about a rotation axis disposed vertically above and below the filter head 100 . The rotating plate 114 changes the position of the connector within a certain angle range while rotating together with the filter 200 .

A first head connection pipe 116 is installed on one side spaced apart from the center of the rotating plate 114 . In addition, a second head connection pipe 118 is installed at the center of the rotating plate 114, and serves as a rotation axis of the rotating plate 114 at the same time. The first head connection pipe 116 and the second head connection pipe 118 are coupled to the first filter connection pipe 208 and the second filter connection pipe 210 installed in the filter 200, respectively. As a result, water may move between the first head connection pipe 116 and the first filter connection pipe 208 and between the second head connection pipe 118 and the second filter connection pipe 210 .

The first head connection pipe 116 and the second head connection pipe 118 are connected to the first connection pipe 124 formed inside the filter head 100 according to the rotation state. Among them, the second head connection pipe 118 is always connected to the first connection pipe 124, but the first head connection pipe 116 is selectively connected to the first connection pipe 124 according to the position change of the rotating plate 114. That is, when the rotating plate 114 rotates and the first head connection pipe 116 and the second head connection pipe 118 are arranged in a direction coincident with the longitudinal direction of the first connection pipe 124, the first connection pipe 124 is connected. However, when the rotating plate 114 is rotated 90 degrees and the first head connection pipe 116 and the second head connection pipe 118 are disposed in a direction that does not coincide with the longitudinal direction of the first connection pipe 124, the connection between the first head connection pipe 116 and the first connection pipe 124 is disconnected and the water does not move.

The matching protrusion 120 protrudes downward from the bottom of the filter head 100 to have a constant cross-sectional shape. The fitting protrusion 120 is a structure for using a filter suitable for each water purifier model, and is manufactured to have a unique shape. The fitting protrusion 120 is manufactured to have a constant cross-sectional shape, and is configured to be inserted into the upper structure of the filter 200 fitted from the bottom.

The matching protrusions 120 are manufactured in different shapes according to the types of the filter head 100 and the filter 200. The filter head 100 and the filter 200 corresponding to each other are provided with matching protrusions 120 having corresponding shapes.

A movement passage through which water moves is formed inside the filter head 100 . The first connector 124 connects the first connector 104 and the second connector 106 . Also, the second connector 126 connects the third connector 108 and the fourth connector 110 . Therefore, the first connector 104 is connected to the first head connection pipe 116 and the first filter connection pipe 208 along the first connection pipe 124 . The second filter connection pipe 210 is connected to the second head connection pipe 118, and the second head connection pipe 118 is connected to the second connector 106 through the first connection pipe 124.

The second head connection pipe 118 is connected to the center of the first connection pipe 124. In addition, the first head connection pipe 116 is located in a place where it is not connected to the first connection pipe 124 when the filter 200 and the filter head 100 are separated. Therefore, it cannot form a water movement path.

However, in a state in which the filter 200 is coupled to the filter head 100, the first head connection pipe 116 rotates and is connected to the first connection pipe 124. In order to couple the filter 200 to the filter head 100, the filter 200 is rotated in a predetermined direction while the first filter connection pipe 208 and the second filter connection pipe 210 are inserted into the first head connection pipe 116 and the second head connection pipe 118, respectively. In the present invention, it is shown to be rotated by 90 degrees clockwise.

When the filter 200 is rotated by 90 degrees, the filter 200 is fixed while the fixed blade 206 is slid and inserted into the fixing guide 112 . In addition, the first head connection pipe 116 into which the first filter connection pipe 208 is inserted rotates clockwise by 90 degrees and is connected to the first connection pipe 124. Therefore, a movement path of water can be formed.

As shown in FIG. 6, the inside of the filter head 100 is provided with a structure that allows raw water to flow into the filter 200 so that water purification can occur, or to pass raw water without water purification by bypassing it.

On one side of the first connection pipe 124, a raw water supply passage 138 is formed in the vertical direction. The lower end of the raw water supply passage 138 is connected to the first head connection pipe 116. And, the bypass valve 122 is installed on the upper side of the raw water supply passage 138, and the control rod 130 is inserted to be movable up and down therein. The control rod 130 controls the open/closed state of the raw water supply passage 138 while moving up and down according to the rotation direction of the bypass valve 122 .

A closing portion 132 is provided at the lower end of the adjusting rod 130 . The closing part 132 closes or opens the space where the raw water supply passage 138 and the first head connection pipe 116 meet. To this end, the diameter of the closing portion 132 is larger than the diameter of the distal end of the raw water supply passage 138. An O-ring 134 may be further provided on the surface of the closure 132 for sealing.

When the closing part 132 comes down, it comes down to the position where the first head connection pipe 116 and the raw water supply passage 138 meet and blocks the passage. As a result, the raw water introduced through the first connection pipe 124 cannot enter the filter 200.

The control rod 130 is inserted into the rod movement passage 136 provided on the upper side of the raw water supply passage 138. One side of the rod movement passage 136 is connected to the third connection pipe 128.

7 and 8 show a state in which raw water is bypassed.

When the manager rotates the bypass valve 122 and sets it to 'bypass mode', the control rod 130 descends downward and the closing part 132 blocks the raw water supply passage 138. At this time, the rod movement passage 136 and the first connection pipe 124 are in a connected state, and the raw water introduced through the first connector 104 passes through the rod movement passage 136 and flows into the third connection pipe 128. Since raw water entering the third connection pipe 128 flows to the fourth connection port 110 through the second connection pipe 126, water purification cannot occur in the filter 200. In this state, the raw water is 100% bypassed.

Then, when the operator rotates the bypass valve 122 and raises the control rod 130 upward, the closing part 132 goes up and goes up to the lower end of the rod moving passage 136. As a result, the connection between the first connection pipe 124 and the rod movement passage 136 is blocked, so that raw water cannot enter the rod movement passage 136. And the raw water supply passage 138 is in an open state.

Therefore, the raw water introduced through the first connection port 104 passes through the first connection pipe 124 and the raw water supply passage 138 and flows into the filter 200 while moving to the first head connection pipe 116. The raw water introduced into the filter 200 is purified and then introduced into the second head connection pipe 118, and the introduced purified water passes through the first connection pipe 124 and is discharged through the second connection port 106.

As such, 100% of the raw water flowing into the filter head 100 passes through the filter 200 and becomes a filtering state in which it is converted into purified water.

If, as shown in FIG. 10, if the operator appropriately rotates the bypass valve 122, the flow of raw water is directed to the first head connection pipe 116 and the third connection pipe 128 according to the position of the control rod 130. It can be divided in the direction. Therefore, it is possible to appropriately divide purified water discharged in a filtered state and raw water discharged in a bypassed state. However, the amount of water introduced through the first connector 104 will be equal to the sum of the amount of purified water filtered and discharged and the amount of raw water bypassed and discharged.

On the other hand, in the filter 200, as shown in FIG. 12, a stopper 204 is bonded to the top of the lower filter body 202, and stator blades 206 protrude from both sides of the stopper 204. A filtering member (not shown) is installed inside the filter body 202 to filter out foreign substances in the raw water.

A second filter connection pipe 210 is installed in the center of the stopper 204, and a first filter connection pipe 208 is installed at a location spaced apart from the second filter connection pipe 210 to one side. The second filter connection pipe 210 and the first filter connection pipe 208 serve as entrances through which water enters or exits the inside of the filter body 202 . Depending on the water purification system, the second filter connection pipe 210 may serve as an inlet or the first filter connection pipe 208 may serve as an inlet.

1-2 O-rings are installed in the second filter connection pipe 210 and the first filter connection pipe 208, respectively. Typically, since the first filter connection pipe 208 and the second filter connection pipe 210 are configured to be inserted into the first head connection pipe 116 and the second head connection pipe 118, respectively, O-rings are installed on the second filter connection pipe 210 and the first filter connection pipe 208. When the second filter connection pipe 210 and the first filter connection pipe 208 are larger and the first head connection pipe 116 and the second head connection pipe 118 are inserted, O-rings are first head connection pipe 116 and the second head connection pipe 118. It will be installed.

A fitting groove 212 is formed in the stopper 204 . The fitting groove 212 has an insertion space 212a formed therein so as to have a constant cross-sectional shape in the up and down direction. The insertion space 212a has the same shape as the matching protrusion 120 . When the filter 200 and the filter head 100 are coupled, the fitting protrusion 120 is inserted into the insertion space 212a.

If the filter 200 and the filter head 100 are not of the same model, the shape of the cross section of the fitting protrusion 120 is different from the shape of the cross section of the insertion space 212a, and as a result, the filter 200 is not inserted into the filter head 100.

The shape of the cross section of the matching protrusion 120 and the matching groove 212 may be modified in various ways other than those shown in the drawings of the present invention.

Check valves (not shown) may be further installed in the first connector 104 to the fourth connector 110 and the first connector 124 to the third connector 128 to restrict the movement direction of water. Even if the pressure of the water supplied to the water purifier or the water stored in the water purifier is reversed due to the check valve, it is possible to prevent water from flowing backward into the filter 200 .

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the technical configuration of the present invention described above does not change the technical spirit or essential features of the present invention by those skilled in the art to which the present invention belongs. It will be understood that it can be implemented in other specific forms. Therefore, the embodiments described above should be understood as illustrative and not limiting in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and all changes or modifications derived from equivalent concepts should be construed as being included in the scope of the present invention.

100: filter head 102: head body
104: first connector 106: second connector
108: third connector 110: fourth connector
112: fixed guide 114: rotating plate
116: first head connector 118: second head connector
120: fitting protrusion 122: bypass valve
124: first connector 126: second connector
128: third connector 130: control rod
132: closing part 134: O-ring
136: rod movement passage 138: raw water supply passage
200: filter

Claims (4)

A water purifier filter head that has a structure in which the movement paths of raw water and purified water are selectively separated and is detachable by rotating the filter 200 replaceably installed inside the water purification system by a certain angle,
a head body;
first connectors and second connectors respectively provided on both side surfaces of the head body;
a first connection pipe connecting the first connector and the second connector to form a water movement path;
third connectors and fourth connectors respectively provided on both side surfaces of the head body;
a second connection pipe connecting the third connector and the fourth connector to form a water movement path;
a third connection pipe connecting the first connection pipe and the second connection pipe to form a water movement path;
a fixing guide protruding from one surface of the head body;
a rotating plate rotatably installed on one side of the head body;
a first head connection pipe installed on one side spaced apart from the center of the rotating plate and selectively connected to the first connection pipe;
a second head connection pipe installed at the center of the rotating plate and connected to the first connection pipe;
A bypass control valve installed in the first connection pipe and selectively distributing the raw water introduced through the first connection hole to the first head connection pipe or the third connection pipe; includes,
A space of a certain size is formed inside the fixed guide, and when the filter 200 is rotated to one side in a state in which it is coupled to the filter head, the fixed wings formed on the filter 200 move to the inside of the fixed guide, and the filter 200 is fixed to the filter head,
The bypass control valve allows some or all of the raw water introduced through the first connector to flow into the filter through the first head connection pipe or to the second connection pipe through the third connection pipe,
The sum of the amount of raw water flowing into the filter and the amount of raw water flowing into the second connection pipe is equal to the amount of raw water flowing through the first connector,
Depending on the rotation angle of the bypass control valve, 100% of the raw water flows through the second connection pipe to the fourth connector and is 100% bypassed, or 100% of the raw water passes through the first connection pipe and flows to the first head connection pipe. 100% purified water, or part of the raw water is bypassed and the remaining part is purified. According to claim 1,
Further comprising a matching protrusion protruding from one surface of the head body to have a constant cross-sectional shape,
The rotary coupling type water purifying system filter head having a bypass path, characterized in that the shape of the cross section of the fitting protrusion is the same as that of the cross section of the fitting groove protruding from the surface of the stopper constructed in the filter. delete According to claim 2,
The filter head for a rotary coupling type water purification system having a bypass path, characterized in that the first head connection pipe is connected to or disconnected from the first connection pipe according to the rotation state of the rotating plate.