KR20130003535A

KR20130003535A - Filtering apparatus

Info

Publication number: KR20130003535A
Application number: KR1020110064949A
Authority: KR
Inventors: 윤식; 이상덕; 최규성
Original assignee: 엘지전자 주식회사
Priority date: 2011-06-30
Filing date: 2011-06-30
Publication date: 2013-01-09

Abstract

This embodiment relates to a filter device of a water purifier. A filter head having at least one water pipe and at least one seating surface formed stepped along the inner surface of the water pipe, and a sealing packing formed at a step corresponding to the seating surface and including a through hole at a central portion thereof; Sealing packing includes a filter device seated on the seating surface.
The sealing seal prevents leakage to the coupling portion when the filter head is engaged with the filter holder.
The water pipe may further include a fixing groove, and the fixing ribs formed in the sealing packing are fixed to the fixing grooves to fix the sealing packing and to block leakage.

Description

Filtering apparatus

The present specification relates to a filter device used for water purification.

Generally, the filter device used for a water purifier etc. contains a filter housing and the filter accommodated in the said filter housing. An upper portion of the filter housing is provided with an inlet through which raw water is introduced and an outlet through which purified raw water is discharged. The filter device is mounted on a structure such as a filter holder of a water purifier to purify raw water.

Even when the filter holder and the filter device are tightly coupled, water leakage continues as the water purification continues for a long time.

Conventionally, in order to prevent leakage, a hole is cut in a filter holder or a filter device, and a ring-shaped sealing member is placed in the groove to close the water leakage by narrowing the distance between the filter holder and the filter device. It was hard to secure.

An object of this embodiment is to provide a filter device for minimizing the occurrence of water leakage in a state in which the filter device is coupled to the filter holder.

Filter apparatus according to the embodiment includes a filter head having one or more water pipes; At least one seating surface formed stepped along the inner surface of the water pipe; And a filter device including a sealing surface including a contact surface to be seated on the seating surface and a through hole through which water passes.

According to the proposed embodiment, the sealing head is provided on one side of the coupling part to which the filter head and the filter holder are coupled to block leakage that may occur in the coupling part. In addition, by providing a ring-shaped sealing member in contact with the inner peripheral surface of the coupling portion, it is possible to double the leakage.

By performing double blocking with the sealing member and the sealing packing, the length of the coupling part is shortened, and the effect of blocking leakage is further excellent.

In addition, the sealing packing is fixed to the fixing grooves formed in the filter header while the filter head is directed downward based on the direction of gravity, even if the sealing seal is not removed and the leakage blocking effect can be improved.

1 is a front perspective view of a water purifier to which the filter device according to the embodiment is applied.
2 is a water pipe diagram of the water purifier to which the filter device according to the embodiment is applied.
3 is a perspective view of a filter device according to an embodiment.
4 is a sectional view of the filter head of the filter device according to the embodiment.
5 is a perspective view of a sealing seal as an embodiment.
6 is a cross-sectional view of a filter head and a filter holder equipped with sealing seals according to an embodiment.

Hereinafter, with reference to the accompanying drawings will be described in detail according to an embodiment of the present invention. The criteria for the top or bottom of each component are described with reference to the drawings. The size of each component in the drawings may be exaggerated for the sake of explanation and does not mean the size actually applied.

1 is a front perspective view of a water purifier to which the filter device according to the embodiment is applied, and FIG. 2 is a water pipe diagram of the water purifier to which the filter device according to the embodiment is applied.

1 and 2, the water purifier 10 of the present embodiment includes a water purification basic body 20.

The filter mounting portion 25 is located in the rear of the water purification body 20, the filter device is mounted, and the raw water filtered by the filter device may be discharged to the water outlet 40 located in the front of the water purifier 10. have. The flow of water in the water purifier 10 will be described below.

The operation unit 30 may be located in front of the purified water main body 20. The operation unit 30 may include one or more buttons for adjusting whether the purified water is discharged, whether or not to use living water, and a washing mode. The drip tray 50 may be positioned below the water outlet portion 40.

The drip tray 50 may receive and store water falling from the water extraction unit 40 and may be detachably coupled to the purified water main body 20. When the water falling from the water outlet part 40 fills the drip tray 50, the user may remove the drip tray 50 to discharge the accumulated water and attach it to the purified water main body 20 again.

Hereinafter, the water flow inside the water purifier will be described.

Raw water flows into the water purifier 10 through the raw water pipe 110. The raw water introduced into the water purifier may flow into the first filter 120 and may selectively pass through the pressure reducing valve 140 before entering the first filter 120. The pressure reducing valve 140 drops the pressure when the pressure of the raw water flowing into the water purifier is greater than the operating range so that the water purifier operates normally.

The raw water flows into the first filter device 120 through the first filter water pipe 122 and the raw water filtered by the first filter device 120 flows out into the first filter water purification pipe 124. The first filter water purification pipe 124 is connected to the second filter raw water pipe 132 and serves to guide the purified water from the first filter device 120 to the second filter 130.

Water flowing into the second filter source pipe 132 is discharged to the second filter purified water pipe 134 via the second filter 130. Although the number of filters is two in this embodiment, the number of filters may be increased or decreased in some embodiments.

The filter may be selected from sediment filter, precarbon filter, UF filter, RO filter, activated carbon filter, NF filter, and the like, but the type of filter is not limited to the above filters.

The purified water coming out of the second filter water purification pipe 134 may pass through the flow meter 150. The flow meter 150 may measure the amount of purified water and store the measured value. In this way, the measurement value can be recorded to determine the replacement time of the filter according to the amount of purified water and to inform the user of this.

The rear end of the flow meter 150 may be connected to the purified water pipe 115 and optionally also the living water pipe 170 may be connected.

The purified water pipe 115 is connected to the water extraction unit 40 so that the purified water may be discharged through the water extraction unit 40 when the user operates the operation unit 30. The water purification pipe 115 may include one or more valves 160 and 165 at one end. The valves 160 and 165 can open and close the flow of the purified water pipe 115 according to the user's operation, and even if there is a malfunction of one valve, the valves 160 and 165 can open and close the purified water pipe 115 with another valve, thereby ensuring stability and reliability. Can be.

The water pipe 170 may be connected to the water pipe so that the water purified by the water purifier may be used in a sink or the like. The living water pipe 170 is provided with a separate valve (not shown) can use the living water according to the user's needs.

3 is a perspective view of a filter device according to an embodiment.

Since the shapes of the first filter device 120 and the second filter device 130 are the same in the present embodiment, the first filter device 120 and the second filter device 130 may be collectively referred to as a filter device ( 120, 130).

Referring to FIG. 3, the filter devices 120 and 130 may include a filter body 205 for accommodating a filter for filtering raw water and a filter head 200 positioned on the filter body 205. The filter head 200 may include an inlet port 220 through which raw water is introduced and a discharge port 210 through which purified water filtered from a filter in the filter body 205 is discharged.

Raw water introduced into the inlet 220 is filtered through the filter and discharged through the outlet 210.

The filter devices 120 and 130 may be mounted on a filter holder (not shown) in which the filter head 200 is located in the purified water main body 20 to filter raw water. Filter devices 120 and 130 may be mounted to the filter holder by a rotation method. When the filter devices 120 and 130 are rotated, the mounting ribs 230 and 235 on the side of the filter head 200 may be firmly coupled to a mounting part (not shown) positioned in the filter holder. However, the mounting method of the filter device (120, 130) may be possible by other methods other than the rotation method, which is obvious to those skilled in the art and will not be described.

One side of the filter head 200 may include a confirmation protrusion 240 for checking whether the filter is completely mounted. When the confirmation protrusion 240 is in a specific position, the user can confirm that the filter device is completely mounted. 4 is a sectional view of a filter head of the filter device according to the embodiment.

Referring to FIG. 4, the filter head 200 is mounted on the filter body 205 and surrounds the upper portion of the filter body 205 and is coupled to a water purifier by being combined with a filter holder (not shown).

The filter head 200 may include one or more water pipes 305. In this embodiment, the water pipe 305 includes the inlet and outlet. Water may flow in or out through the water pipe 305. The water pipe 305 may be inserted into the pipe extending from the filter holder (not shown) coupled to the filter head 200.

The water pipe 305 may include one or more seating surfaces. Sealing packing 400 to be described later is seated on the seating surface. In FIG. 4, for example, a plurality of seating surfaces are formed in the water pipe 305.

The plurality of seating surfaces may be stepped. The seating surface includes a first seating surface and a second seating surface stepped downward from the first seating surface. The outer diameter of the first seating surface 310 may be larger than the outer diameter of the second seating surface 320, and the inner diameter of the first seating surface 310 may be the same as the outer diameter of the second seating surface 320. . Therefore, the diameter of the water pipe 305 may be gradually reduced from the upper side to the lower side.

A fixing groove 330 is formed in the connection surface between the first seating surface 310 and the second seating surface 320. The fixing rib 430 of the sealing packing 400 to be described later is seated in the fixing groove 330, and the sealing packing 400 may be fixed in the water pipe 305 as the fixing rib 430 is seated. have.

The outer diameter of the fixing groove 330 is larger than the outer diameter of the second seating surface 320 and preferably smaller than the outer diameter of the first seating surface 310.

Referring to Figure 5 will be described an sealing seal as an embodiment.

4 and 5, the sealing pipe 400 may be seated on the water pipe.

The sealing packing 400 is formed with a through hole 405 through which water can pass.

The sealing packing 400 may be stepped correspondingly according to the shape of the seating surface of the water pipe 305, but the sealing packing 400 is stepped in the same manner as the number of stepped breaks of the water pipe 305. There is no need.

The sealing packing 400 may include a first contact surface 410 seated on the first seating surface 310 and a second contact surface 420 seated on the second seating surface 320. An outer diameter of the first contact surface 410 may be equal to or larger than an outer diameter of the second contact surface 420.

A fixing rib 430 is formed at a connection portion connecting the first contact surface 410 and the second contact surface 420. The fixed rib 430 protrudes from the connection portion.

The fixing rib 430 has a shape corresponding to the shape of the fixing groove 330 to be coupled to the fixing groove 330 located in the water pipe 305. As the fixing rib 430 is seated in the fixing groove 330 located in the water pipe 305, the sealing packing 400 may be fixed to the water pipe 305.

Although the material of the sealing packing 400 is not limited, it is preferable to use a material having strong water resistance and elasticity. The embodiment may be rubber or silicone, but is not limited to the embodiment.

6 illustrates a filter device on which a sealing seal is seated.

The filter head 200 having one or more water pipes 305 is connected to a filter holder located at the filter mounting portion 25 of the water purifier. The connection method may be used in any of the forms of screwing and the method of pressing by rotation. The water pipe 305 may be an inlet 220 or outlet 210.

The filter holder includes a first connector 510 directly connected to the filter head 200, and a second connector 520 surrounding the first connector 510 and connected to a water purifier.

The first connection part 510 includes connecting pipes 530 and 535 extending in the direction of the water pipe 305 of the filter head 200. The outer diameter of the connecting pipes 530 and 535 may be the same as the inner diameter of the water pipe 305.

When the connecting pipes 530 and 535 are connected to the water pipe 305, there may be a risk of water leakage flowing in the pipe. In order to prevent such leakage, the mounting grooves 540 may be formed on the outer circumferential surfaces of the connecting pipes 530 and 535, and a ring-shaped sealing member 545 may be seated in the mounting grooves 540.

The sealing member 545 may be made of an elastic material and the seated outer diameter may be equal to or larger than the inner diameter of the water pipe 305. As a result, leakage of water flowing through the water pipe 305 to the outside of the first connector 510 may be minimized.

The sealing packing 400 is located in the water pipe 305 as described above. The connecting pipes 530 and 535 are coupled to the water pipe 305 so that the connecting pipes 530 and 535 press the top surface of the sealing packing 400. Since the sealing packing 400 is made of elastic and water resistant materials, the connection pipes 530 and 535 can block the leakage of the leakage to the outside of the first connection part 510 while pressing the sealing packing 400. do.

The inner diameter of the connecting pipes (530, 535), the aperture of the through hole 405 of the sealing packing 400 and the inner diameter of the second seating surface located in the water pipe 305 may be configured to be the same, thereby Pipes extending from 530 and 535 to the water pipe 305 are formed to have the same inner diameter to smoothly flow water therein.

In the present embodiment, the sealing packing and the sealing member may be referred to as a leakage blocking device.

According to this embodiment, by providing a plurality of water leakage blocking device it is possible to minimize the leakage of water flowing in the filter when the filter head 200 and the first connector 510 is connected.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

10: water purifier 120,130: filter device
400: sealing packing

Claims

A filter head having one or more water pipes;
At least one seating surface formed stepped along the inner surface of the water pipe; And
Filter device comprising a sealing packing including a contact surface for mounting on the seating surface, and a through hole for passing water.

The method according to claim 1,
The seating surface includes a first seating surface and a second seating surface which is stepped with the first seating surface and whose outer diameter is smaller than the first seating surface,
The sealing packing includes a first contact surface seated on the first seating surface, and a second contact surface seated on the second seating surface.

The method of claim 2,
The sealing packing,
And at least one fixed rib formed on a connection surface between the first contact surface and the second contact surface.

The method of claim 3,
Located in the inner circumferential surface of the water pipe,
A filter device is formed on the connection surface between the first seating surface and the second seating surface, the filter device including one or more fixing grooves into which the one or more fixing ribs are inserted.

The method according to claim 1,
A filter holder coupled to the filter head; And
It further comprises a connecting pipe extending from the filter holder and connected to the water pipe,
And the connecting pipe presses and presses the sealing packing when the filter head and the filter holder are coupled to each other.

6. The method of claim 5,
The connecting pipe has a smaller diameter than the water pipe so that the connection pipe is located inside the water pipe when connected to the water pipe.
The connector includes one or more seating grooves recessed in the outer circumferential surface,
A ring-shaped sealing member is seated in the seating groove,
The sealing member is in contact with the inner peripheral surface of the water pipe.

The method of claim 2,
The inner diameter of the through hole of the sealing packing is the same as the inner diameter of the second seating surface.