KR20170083315A - Filter Assembly of Water Purifier - Google Patents

Abstract

The present invention relates to a water purifier filter assembly including a filter, a filter cartridge having an inlet and a drain, and a bracket rotatably installed in the water purifier so that the filter cartridge is detachably mounted, the filter cartridge including a filter housing ; A filter cap mounted on the top of the filter housing and having a mounting flange radially extending at an outer periphery thereof; And a drain pipe for discharging the domestic water that has not been filtered through the filter to the outside, and a drain pipe connected to the upper portion of the filter cap, And a discharge pipe is formed between the water pipe and the fixed pipe, and the fixed pipe is connected to the discharge pipe and the discharge pipe, And the living water in the discharge passage flows into the discharge pipe. Therefore, the discharge pipe of the living water passage is not affected by the rotation of the filter cartridge, so that the structure of the living water discharge passage can be simplified.

Description

{Filter Assembly of Water Purifier}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier filter assembly, and more particularly, to a water purifier filter assembly capable of maintaining a fixed state and discharging domestic water even when the filter cartridge rotates.

Generally, a water purifier installed in a home or office has a basic function of filtering the number of water purification objects requiring water purification, such as water supply or natural water, and providing them as constant water or cold water. Such water purification equipment includes floating materials A number of filtering processes are required to remove harmful components in the body, to remove odors, and to sterilize bacteria that cause water-borne diseases.

The water purifier includes a sediment filter which is formed as an integer with the number of water objects sequentially passing therethrough, an activated carbon filter which performs a filtering function by adsorption action by the micropores of the activated carbon, A membrane filter (UF filter), a membrane filter (UV filter), and an ultraviolet sterilization filter (UV filter) are selectively applied to remove contaminants through fine pores, and a filtering process is performed.

In the case of a sedimentation filter, an activated carbon filter, a hollow fiber membrane filter, a membrane filter or the like, which is applied to a water purifier, the filter case in which a filter material (for example, activated carbon in the case of an activated carbon filter) is housed is housed in an external case, There is a general structure in which the purified water target water obtained through the inlet connected to the inside of the case is filtered by the filter material in the filter case and then discharged through the drain port of the external case.

On the other hand, in the case of the RO (Reverse Osmosis) filter, a separate living water passage is provided in addition to the purified water passage through the inlet and outlet to discharge the domestic water not filtered by the filter to the outside.

Generally, the filter assembly has a structure in which the filter cartridge is mounted on and detached from the bracket by the rotation operation. Therefore, there is a problem in that the flow path structure is complicated in order to prevent the rotation operation of the filter cartridge and the life water discharge flow path from interfering with each other.

1. Registration Utility Model No. 20-0432225

2. Registration No. 10-1148053

SUMMARY OF THE INVENTION It is an object of the present invention to provide a water purifier filter assembly in which the drainage pipe of the living water passage is not affected by the rotation of the filter cartridge, thereby simplifying the structure of the living water discharge passage.

According to an aspect of the present invention, there is provided a water purifier filter assembly including a filter cartridge including a filter, a filter cartridge having an inlet and a drain, and a bracket rotatably installed inside the water purifier for removing the filter cartridge, A filter housing incorporating the filter; A filter cap mounted on the top of the filter housing and having a mounting flange radially extending at an outer periphery thereof; And a drain pipe for discharging the domestic water that has not been filtered through the filter to the outside, and a drain pipe connected to the upper portion of the filter cap, And a discharge pipe is formed between the water pipe and the fixed pipe, and the fixed pipe is connected to the discharge pipe and the discharge pipe, And the living water in the discharge passage flows into the discharge pipe.

Preferably, the discharge pipe is coupled to the fixing pipe such that one end thereof extends through the bracket and extends to the outside, and the other end is connected to the discharge passage, and the discharge pipe and the fixing pipe are connected to each other by rotation of the water pipe And maintains a fixed state irrespective of the state.

The annular exhaust passage is formed by a pair of O-rings spaced apart from each other between the discharge pipe and the fixed pipe.

Preferably, the bracket includes: a fixing member having an arcuate lid and a back surface fixed inside the water purifier; A pivoting member rotatably coupled to the fixing member about a horizontal axis outside the fixing member and to which the filter cap of the filter cartridge is fastened; And a fixing member which is provided inside the fixing member so as to be rotatable in unison with the pivoting member and is brought into contact with the end side of the fixing member by the rotation of the pivoting member to move toward the filter cap side of the filter cartridge, And a rocker member.

According to the present invention, the water outlet pipe and the fixed pipe are formed independently from each other, and the stationary pipe and the discharge pipe are kept fixed even when the filter cartridge and the bracket rotate, so that the domestic water can be discharged at all times.

Further, according to the present invention, since the discharge pipe can be provided irrespective of the rotation of the filter cartridge and the bracket, the living water discharging flow path can be simply configured.

1 is a perspective view illustrating a purifier filter assembly according to the present invention,
Figure 2 is a side view of a purifier filter assembly according to the present invention,
FIG. 3 is a side view of a water purifier filter assembly according to the present invention,
FIG. 4 is a side view of the purifier filter assembly according to the present invention taken in another direction,
Figure 5 is a side cross-sectional view of the purifier filter assembly according to Figure 4,
FIG. 6 is a plan view of a water purifier filter assembly according to the present invention,
Figure 7 is a top cross-sectional view of the purifier filter assembly according to Figure 6,
8 is a side cross-sectional view of a purifier filter assembly according to the present invention,
FIG. 9 is a side cross-sectional view of a water purifier filter assembly according to the present invention, showing a water supply channel for domestic water.

Hereinafter, preferred embodiments of a purifier filter assembly according to the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the technical scope of the present invention. Will be.

A water purifier filter assembly according to the present invention includes a filter and a filter cartridge having a water inlet through which foreign raw water flows and a water outlet which is filtered through a filter and flows out to a water purifier (not shown) And a bracket 200 rotatably installed inside the water purifier and detachably coupled to the filter cartridge 100.

First, the bracket 200 will be described. The bracket 200 is rotatably installed inside the water purifier and is detachably coupled to the filter cartridge 100. More specifically, the bracket 200 includes a fixing member 210 fixed to the inside of the water purifier, a tilting member 220 pivotally coupled to the outside of the fixing member 210, 210) for fixing the filter cap (130) of the filter cartridge (100).

The fixing member 210 has a fixing plate 211 fixed to the inside of the water purifier at the rear. The fixing member 210 has a lower surface and a part of the upper surface opened and includes a side surface 212 extending forward from the fixing plate 211 and a cover 213 covering the upper rear side of both side surfaces 212. [ Respectively. Here, the lid 213 is formed in an arc shape so as not to interfere with the pivoting member 220 when the pivoting member 220, which will be described later, is rotated.

The tiltable member 220 is rotatably coupled to the fixing member 210 on the horizontal axis outside the fixing member 210, that is, around the pivotal axis 221. The tiltable member 220 has a bottom surface and a rear surface and a part of the top surface of the tiltable member 220. The tiltable member 220 has two side surfaces 222 facing the side surfaces 212 of the fixing member 210, (223). The lid 223 is formed in an arc shape corresponding to the lid 213 of the fixing member 210 and rotates with the pivoting member 220 outside the lid 213 of the fixing member 210 while rotating. Further, the filter cap 130 of the filter cartridge 100 is inserted and fastened to the bottom surface of the tiltable member 220.

The rocker member 230 is installed inside the fixing member 210 so as to be able to rotate integrally with the tiltable member 220. The rocker member 230 moves toward the filter cap 130 side of the filter cartridge 100 in contact with the front end side of the fixing member 210 when the tiltable member 220 rotates, Fixed. 4, 6 and 7, the rocker member 230 includes a pair of lockers 230 having side surfaces facing each other so as to surround the outer surface of the filter cap 130. Each rocker 230 is connected to the tiltable member 220 by an elastic member 240 installed in a horizontal direction inside the tiltable member 220. By the elastic force of the elastic member 240, the respective lockers 230 are urged in a direction away from each other, that is, toward the outside of the pivoting member 220.

According to the bracket 200 having such a configuration, when the pivoting member 220 is in the mounting position such that the filter cartridge 100 is positioned in the vertical direction, the pair of lockers 230 are positioned at the front end of the fixing member 210 Thereby moving in directions adjacent to each other. The pair of lockers 230 pressurize the filter cap 3 of the filter cartridge 100 so that the filter cartridge 100 is mounted to the tiltable member 220 by the pair of lockers 230 do.

On the other hand, when the filter cartridge 100 is rotated at a predetermined angle at the mounting position and the tiltable member 220 is in the unlocked position (the tiltable member 220 is positioned in the horizontal direction) The pair of lockers 230 move in a direction away from each other due to the elastic force of the elastic member 240. As a result, The pair of lockers 230 can be separated from the filter cap 130 of the filter cartridge 100 so that the filter cartridge 100 can be separated from the tiltable member 220. [

Next, the filter cartridge 100 will be described. The filter cartridge 100 includes a cylindrical filter housing 120 having a cylindrical filter 110 therein and a mounting flange 131 mounted on the top of the filter housing 120 and extending radially on the outer periphery of the filter housing 120. A filter cap 130 and a head cap 140 coupled to the top of the filter cap 130 and secured to the bracket 200. The mounting flange 131 of the filter cap 130 engages with the rocker member 230 of the bracket 200 to allow the filter cartridge 100 to be mounted on the bracket 200.

The head cap 140 has a water inlet tube 141 and a water outlet tube 142 formed in a straight line in the horizontal direction. The water inlet pipe 141 allows external raw water to flow into the filter 110 side and the water outlet pipe 142 allows the purified water filtered through the filter 110 to be discharged to the outside of the filter cartridge 100. A vertical flow passage 143 connected to the filter 110 is formed on the downstream side of the water supply pipe 141 and a check valve 150 for blocking the inflow of raw water is provided in the vertical flow passage 143. 8, the raw water flowing into the head cap 140 through the water inlet pipe 141 flows into the outer oil passage 121 between the filter housing 120 and the filter through the vertical oil passage 143, The raw water flowing into the flow path 121 flows from the outside of the filter 110 toward the center of the filter housing 120, and is filtered to be purified. The filtered purified water moves upward along the central flow passage 122 of the filter housing 120 and exits to the outside of the filter cartridge 100 through the water outlet pipe 142. Such an integral flow path is shown by an arrow A in Fig.

In addition, the head cap 140 further includes a discharge pipe 144 for discharging the unfiltered domestic water through the filter 110 to the outside. The discharge pipe 144 is disposed in a direction perpendicular to the water discharge pipe 142 and communicates with the discharge flow passage 160 formed on the outer side of the water discharge pipe 142.

Here, a fixing pipe 145 having a diameter larger than the diameter of the water outlet pipe 141 is provided outside the water outlet pipe 141. The water outlet pipe 141 and the fixing pipe 145 are independently constructed so as not to be interlocked with each other. Therefore, an annular predetermined space is formed between the water pipe 141 and the fixing pipe 145. The annular predetermined space is connected to the discharge pipe 144 and functions as a discharge passage 160 for discharging the domestic water that has not been filtered through the filter 110 to the discharge pipe 144 side.

Specifically, the discharge tube 144 extends outward through one end of the fixing member 210 of the bracket 200 (see FIG. 2). The other end of the discharge pipe 144 is connected to the fixing pipe 145 so as to communicate with the discharge passage 160 (see FIGS. 6 and 7). That is, the discharge tube 144 and the fixing tube 145 are kept fixed regardless of the rotation of the bracket 200. Accordingly, when the filter cartridge 100 and the bracket 200 are rotated to replace the filter cartridge 100, the water pipe 142 is also rotated by the rotation of the pivoting member 220 of the bracket 200 , But the fixing pipe 145 remains fixed. Therefore, the discharge pipe 144 can be provided irrespective of the rotation of the filter cartridge 100 and the bracket 200, so that the living water discharge flow path can be configured easily.

Preferably, a pair of o-rings 146 are disposed between the discharge pipe 144 and the fixing pipe 145 in parallel to each other. The O-ring 146 is for holding airtightness such as silicone or rubber, and an annular discharge passage 160 is formed in a space between the pair of O-rings 146.

Referring to FIG. 9, the drainage passage for domestic water of the purifier filter assembly according to the present invention is shown by an arrow B. The domestic water that has not been filtered through the filter 110 into the raw water flowing into the outer channel 121 of the filter housing 120 through the water inlet pipe 141 is discharged through the outlet provided in the outer periphery of the filter cap 130, (140) and flows into the discharge channel (160) between the water pipe (142) and the fixed pipe (145). The domestic water flowing into the discharge passage 160 is discharged to the outside of the filter cartridge 100 through the discharge pipe 144. At this time, even when the filter cartridge 100 and the bracket 200 rotate and the water outlet pipe 142 rotates, the stationary pipe 145 and the discharge pipe 144 communicate with each other in a fixed state, Do.

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the scope of protection of the present invention should be interpreted according to the claims. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It should be interpreted that it is included in the scope of right.

Claims (4)

1. A water purifier filter assembly including a filter cartridge having a filter and having an inlet and a drain, and a bracket rotatably installed inside the water purifier for removing the filter cartridge,
The filter cartridge includes:
A filter housing housing the filter;
A filter cap mounted on the top of the filter housing and having a mounting flange radially extending at an outer periphery thereof; And
And a drain pipe for discharging the domestic water which has not been filtered through the filter to the outside, and is connected to the upper part of the filter cap, And a head cap fixedly installed,
Wherein the water outlet pipe is provided with a fixing pipe having a diameter larger than the diameter of the water outlet pipe so that a discharge flow path is formed between the water outlet pipe and the fixing pipe and the fixing pipe is connected to the discharge pipe, And the water is introduced into the discharge pipe.
The method according to claim 1,
Wherein the discharge pipe is coupled with the fixing pipe so that one end thereof extends through the bracket and the other end communicates with the discharge flow passage so that the discharge pipe and the fixing pipe are fixedly fixed to each other regardless of the rotation of the water pipe, To maintain the condition of the water filter filter.
The method according to claim 1,
Wherein the annular discharge passage is formed by a pair of O-rings spaced apart from each other between the discharge pipe and the fixed pipe.
4. The method according to any one of claims 1 to 3,
The bracket
A fixing member which forms an arc-shaped lid and whose back surface is fixed inside the water purifier;
A pivoting member rotatably coupled to the fixing member about a horizontal axis outside the fixing member and to which the filter cap of the filter cartridge is fastened; And
Wherein the filter cap is provided in the fixing member so as to be rotatable in unison with the pivoting member and moves toward the filter cap side of the filter cartridge in contact with the end side of the fixing member by the rotation of the pivoting member, ≪ / RTI > wherein the filter member comprises a member.

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