KR20210046298A - Filter assembly for water purifier - Google Patents

Abstract

The present invention relates to a rotary coupling type water purifier filter assembly. More particularly, the present invention relates to a rotary coupling type water purifier filter assembly that allows a filter, replaceably installed inside a water purifier, to be detachably attached only by means of rotation by a predetermined angle so that leakage or failure does not occur even when high water pressure is applied. According to the present invention, the filter can be easily mounted or detached only by rotating the filter. Also, there is no leakage or damage in the state where the filter and a head are combined, and only specified filter products are allowed to be installed, thereby having the effect of preventing malfunctions during use.

Description

Filter assembly for rotary water purifier {FILTER ASSEMBLY FOR WATER PURIFIER}

The present invention relates to a filter assembly for a rotational water purifier, and more particularly, it is possible to attach and detach the filter by rotating a filter installed inside the water purifier by a certain angle so that leakage or failure does not occur even when high water pressure is applied. It relates to a rotary coupling type water purifier filter assembly.

In modern society, as the distrust of tap water increases due to water pollution, more and more consumers use purified water with a water purifier or bottled water as drinking water, and there is a trend that will continue to increase in the future.

A commonly used water purifier is composed of one or more filters that remove foreign substances contained in raw water received through an inlet and discharge purified water, and an outlet through which purified water is discharged out of the system.

Filters in these water purification systems need to be replaced with new filters according to the appropriate replacement time for each filter because impurities contained in the water passing through the filter are loaded into the filter when purifying water for a certain period of time or a certain amount of water. .

Conventionally, the filter replacement of such a water purification system is performed by connecting the supporter and filter in the form of female or male threads, or using a separate mechanism to connect the filter and filter, or the connection hose and fitting used to connect the filter and supporter. Separated, and in order to block the outflow of raw water, the raw water is directly blocked using the raw water blocking device, and after replacing the filter, it is necessary to adjust the raw water blocking device again, so there is a problem that workability is inferior and complicated.

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

The present invention for solving the above-described problem is a rotary-coupled water purifier filter assembly in which a head for fixing a water purifier filter is installed inside the water purifier, and a filter connector protruding at the upper end of the filter is directly connected to the head connector to be fixed. It aims to provide.

In addition, when the filter is rotated by a certain angle while the filter is connected to the head, the fixing blades installed on the top of the filter are inserted into the fixing guide formed on the bottom of the head, and the filter and the head are firmly coupled. It is aimed at.

In addition, it is an object of the present invention to provide a filter assembly of a rotationally coupled water purifier that allows only products of a predetermined standard or shape to be coupled by forming projections and grooves having a shape corresponding to each other on a surface where the filter and the head contact each other.

The present invention conceived to solve the above-described problem is a water purifier filter assembly that rotates a filter 120 that is replaceably installed inside the water purifier by a certain angle so that it can be attached and detached, and is installed inside the water purifier to control the movement path of water. And a head 110 through which raw water is introduced and purified water is discharged; Includes; a filter 120 detachably coupled to the head 110 to remove foreign substances in the raw water, wherein the head 110 includes a head body 111; A first connector 112 and a second connector 113 provided on both sides of the head body 111, respectively; A fixing guide 114 protruding from the inner edge of the bottom of the head body 111; A rotating plate 115 rotatably installed on the underside of the head body 111; A first head connector 116 installed at the center of the rotating plate 115; A second head connector 117 installed on one side spaced apart from the center of the rotating plate 115; It is characterized in that it is composed of a fitting protrusion 118 protruding from the bottom of the head body 111 to have a shape of a certain cross-section downward.

The filter 120 includes a filter body 121 in which a filtering member for removing foreign substances is built therein; A stopper 122 which is bonded above the filter body 121 to seal the inner space of the filter body 121; A fixed wing 123 protruding from both sides of the stopper 122 and slidingly inserted into the fixed guide 114; A first filter connector 124 installed in the middle of the stopper 122 and coupled to the first head connector 116; A second filter connector 125 installed on one side spaced apart from the center of the stopper 122 and coupled to the second head connector 117; It characterized in that it consists of a; is formed protruding upward on the surface of the stopper 122, the insertion space (126a) having a shape of a constant cross-section in the upper and lower direction is formed.

The fitting protrusion 118 is characterized in that it is installed at a symmetrical position of the second head connector 117 with respect to the center of the rotating plate 115.

The fitting protrusion 118 and the fitting groove 126 have the same cross-sectional shape.

According to the present invention, the filter can be easily mounted or removed by simply rotating the filter, and leakage or damage does not occur when the filter and the head are combined, and failure occurs during use by allowing only specified filter products to be installed. It has the effect of preventing.

1 is a perspective view showing the structure of a filter assembly according to an embodiment of the present invention.
2 is a perspective view showing a state in which the head and the filter are separated.
3 is a perspective view showing the structure of the bottom of the head.
Figure 4 is a view showing a state in which the flow channel is blocked.
5 is a view showing a state in which the flow channel is opened.
6 is a perspective view showing in detail the structure of the connection part of the filter.
7 is a perspective view showing a state in which the fitting protrusion is inserted and fixed in the fitting groove.

Hereinafter, a "rotation-coupled water purifier filter assembly" (hereinafter, referred to as a "filter assembly") according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view showing the structure of a filter assembly according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which the head and the filter are separated.

The filter assembly 100 of the present invention is composed of a combination structure of the head 110 and the filter 120, the head 110 is installed inside the water purifier, the filter 120 is detachable to the head 110 Are combined. The filter 120 is a consumable item and is provided to be replaced after a certain amount or a certain time of use.

The head 110 is installed in the water movement path installed inside the water purifier. Typically, a water purifier includes a portion that receives raw water (water before water purification) from an external water inlet pipe or a raw water tank, and a portion that discharges purified water from which foreign substances have been removed by the filter 120. The head 110 is installed in such a water movement path to guide the raw water supplied from the outside to the inside of the water purification space of the filter 120, and guide the purified water to the outside by filtering foreign substances in the filter 120. The head 110 is preferably installed on the outer part of the water purifier body so that the operator or user can easily manipulate it, and the head 110 can be rotated outward to facilitate the operation of rotating the filter 120. To be installed.

A connector is provided on the left and right sides of the outer surface of the head 110 to allow water to flow into and out of the head 110. The connector is connected to a flow path formed inside the head 110.

In addition, a structure for fixing the filter 120 is formed on the bottom of the head 110.

3 is a perspective view showing the structure of the bottom of the head, FIG. 4 is a view showing a state in which the flow channel is blocked, FIG. 5 is a view showing a state in which the flow channel is opened, and FIG. 6 is a perspective view showing in detail the structure of the connection part of the filter , Figure 7 is a perspective view showing a state in which the fitting protrusion is inserted and fixed in the fitting groove.

In the present invention, the place where the filter 120 is coupled is referred to as the "bottom" of the head 110, but the bottom of the head 110 does not necessarily face downward in the water purifier, and may be installed upward or sideways. There will be.

A first connector 112 and a second connector 113 are provided on both sides of the head body 111 forming the outer shape of the head 110, respectively. The first connector 112 and the second connector 113 are connected to a pipe through which raw water flows in and a pipe through which purified water flows out, respectively. Depending on the installation type, the first connector 112 may be an inlet port and the second connector 113 may be an outlet port, but the opposite movement path may be formed.

On the inner edge of the head body 111, a fixing guide 114 is formed to protrude toward the inside by a certain height. The fixing guide 114 has a space of a certain size formed inside, and the fixing blades 123 formed in the filter 120 are inserted. When the filter 120 is rotated to one side while being coupled to the head 110, the filter 120 is fixed to the head 110 while the fixing blades 123 move to the inside of the fixing guide 114. In some cases, it is also desirable to form a jaw on the inner surface of the fixing guide 114 so that the fixing blades 123 cannot easily come out.

A rotating plate 115 is rotatably installed on the bottom of the head body 111. The rotating plate 115 is installed to be rotatable about a rotating shaft disposed vertically above and below the head body 111. The rotating plate 115 rotates together with the filter 120 and changes the position of the connection pipe within a certain angular range.

A first head connector 116 is installed at the center of the rotating plate 115, and simultaneously serves as a rotating shaft of the rotating plate 115. A second head connector 117 is installed on one side spaced from the center of the rotating plate 115. The first head connector 116 and the second head connector 117 are respectively coupled to the first filter connector 124 and the second filter connector 125 installed on the filter 120. Accordingly, water may move between the first head connector 116 and the first filter connector 124, and the second head connector 117 and the second filter connector 125.

The first head connector 116 and the second head connector 117 are respectively connected to the first moving passage 112a and the second moving passage 113a formed inside the head body 111. Among them, the first head connector 116 is constantly connected to the first moving passage 112a, but the second head connector 117 is the second moving passage 113a according to the change in the position of the rotating plate 115. ) And is selectively connected.

The fitting protrusion 118 is formed to protrude downward from the bottom surface of the head body 111 to have a shape of a constant cross-section. The fitting protrusion 118 is a structure for using a filter suitable for each water purifier model, and is manufactured to have a unique shape. The fitting protrusion 118 has a uniform cross-sectional shape and is configured to be inserted into the upper structure of the filter 120 fitted from the bottom.

The fitting protrusion 118 is manufactured in different shapes according to the type of the head 110 and the filter 120, and the corresponding head 110 and the filter 120 are provided with a fitting protrusion 118 having a corresponding shape. do.

A moving passage through which water moves is formed inside the head body 111. The first moving passage 112a and the second moving passage 113a are connected to the first connector 112 and the second connector 113, respectively. Accordingly, the first connector 112 is connected to the first head connector 116 and the first filter connector 124 along the first moving path 112a. In addition, the second connector 113 is connected to the second head connector 117 and the second filter connector 125 along the second moving passage 113a. Water introduced through the first connector 112 moves along the inner passage and the connector and is discharged through the second connector 113. When the water movement path is opposite, it will be introduced through the second connector 113 and discharged through the first connector 112.

As shown in FIG. 4, the first head connector 116 is connected to the distal end of the first moving passage 112a. In addition, the second head connector 117 is located at a location not connected to the distal end of the second moving passage 113a when the filter 120 and the head 110 are separated. Therefore, it cannot form a path of water.

However, as shown in FIG. 5, in a state in which the filter 120 is coupled to the head 110, the second head connector 117 rotates and is connected to the distal end of the second moving passage 113a. In order to couple the filter 120 to the head 110, the first filter connector 124 and the second filter connector 125 are connected to the first head connector 116 and the second head connector 117, respectively. In the inserted state, the filter 120 is rotated in a predetermined direction. In FIGS. 3 to 5 of the present invention, it is shown to be rotated by 90 degrees in a clockwise direction.

When the filter 120 is rotated by 90 degrees, the fixing blades 123 are slidably inserted into the fixing guide 114 to fix the filter 120. In addition, the second head connector 117 into which the second filter connector 125 is inserted is connected to the second moving passage 113a while rotating by 90 degrees in the clockwise direction. Thus, a water movement path can be formed.

On the other hand, the filter 120, as shown in Figure 6, the stopper 122 is bonded to the upper side of the filter body 121 at the bottom, the fixing blades 123 are formed to protrude to both sides of the stopper 122. . A filtering member (not shown) is installed inside the filter body 121 to filter foreign substances inside the raw water.

A first filter connector 124 is installed in the middle of the stopper 122, and a second filter connector 125 is installed at a location spaced from the first filter connector 124 to one side. The first filter connection pipe 124 and the second filter connection pipe 125 serve as entrances for water into or out of the filter body 121. Depending on the water purifier model, the first filter connector 124 may be an inlet or the second filter connector 125 may be an inlet.

Each of the first filter connector 124 and the second filter connector 125 is provided with 1-2 O-rings. Typically, since the first filter connector 124 and the second filter connector 125 are configured to be inserted into the inside of the first head connector 116 and the second head connector 117, the first filter connector An O-ring is installed on the 124 and the second filter connector 125. When the first filter connector 124 and the second filter connector 125 are larger and the first head connector 116 and the second head connector 117 are inserted, the O-ring is the first head connector ( 116) and the second head connector 117 will be installed.

A fitting groove 126 is formed in the stopper 122. The fitting groove 126 has an insertion space 126a formed therein so as to have a shape of a constant cross-section in the upward and downward direction. The shape of the insertion space 126a is the same as that of the fitting protrusion 118. When the filter 120 and the head 110 are coupled, the fitting protrusion 118 is fitted into the insertion space 126a.

If the filter 120 and the head 110 are not the same model, the shape of the cross section of the fitting protrusion 118 is different from the shape of the cross section of the insertion space 126a. Does not fit in

The shape of the cross section of the fitting protrusion 118 and the fitting groove 126 may be variously modified in addition to those shown in the drawings of the present invention.

A check valve (not shown) that restricts the direction of movement of water may be further installed in the first connector 112 and the second connector 113, the first moving passage 112a, and the second moving passage 113a. Even if the pressure of water supplied to the water purifier or water stored in the water purifier is reversed due to the check valve, it is possible to prevent water from flowing back into the filter 120.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the technical configuration of the present invention described above is another specific form without changing the technical spirit or essential features of the present invention by those skilled in the art. It will be appreciated that it can be implemented with. Therefore, the above-described embodiments are to be understood as illustrative and non-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 modified forms derived from the equivalent concept should be construed as being included in the scope of the present invention.

100: filter assembly 110: head
111: head body 112: first connector
113: second connector 114: fixed guide
115: rotating plate 116: first head connector
117: second head connector 118: alignment protrusion
120: filter 121: filter body
122: stopper 123: fixed wing
124: first filter connector 125: second filter connector
126: custom groove

Claims (4)

As a water purifier filter assembly that enables attachment and detachment by rotating the filter 120 interchangeably installed inside the water purifier by a certain angle,
A head (110) installed inside the water purifier to form a water movement path and through which raw water is introduced and purified water is discharged;
Includes; a filter 120 detachably coupled to the head 110 to remove foreign substances inside the raw water,
The head 110 is
A head body 111;
A first connector 112 and a second connector 113 provided on both sides of the head body 111, respectively;
A fixing guide 114 protruding from the inner edge of the bottom of the head body 111;
A rotating plate 115 rotatably installed on the underside of the head body 111;
A first head connector 116 installed at the center of the rotating plate 115;
A second head connector 117 installed on one side spaced apart from the center of the rotating plate 115;
It characterized in that it is composed of a fitting protrusion 118 formed to protrude from the bottom of the head body 111 to have a shape of a certain cross-section downward from the bottom surface of the head body 111, rotationally coupled water purifier filter assembly. The method of claim 1,
The filter 120 is
A filter body 121 having a built-in filter member for removing foreign substances therein;
A stopper 122 which is bonded above the filter body 121 to seal the inner space of the filter body 121;
Fixed blades 123 protruding from both sides of the stopper 122 and slidingly inserted into the fixed guide 114;
A first filter connector 124 installed in the middle of the stopper 122 and coupled to the first head connector 116;
A second filter connector 125 installed on one side spaced apart from the center of the stopper 122 and coupled to the second head connector 117;
It is formed on the surface of the stopper 122 protruding upward, and the insertion space (126a) having a shape of a constant cross-sectional shape in the upper and lower direction is formed therein a fitting groove 126; characterized by consisting of Water purifier filter assembly. The method of claim 2,
The fitting protrusion 118 is installed at a symmetrical position of the second head connection pipe 117 with respect to the center of the rotating plate 115, a filter assembly of a rotationally coupled water purifier. The method of claim 3,
The shape of the cross-section of the fitting protrusion 118 and the fitting groove 126 is the same as each other, rotationally coupled water purifier filter assembly.

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