KR200168674Y1 - Water softener - Google Patents

Water softener Download PDF

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Publication number
KR200168674Y1
KR200168674Y1 KR2019990015979U KR19990015979U KR200168674Y1 KR 200168674 Y1 KR200168674 Y1 KR 200168674Y1 KR 2019990015979 U KR2019990015979 U KR 2019990015979U KR 19990015979 U KR19990015979 U KR 19990015979U KR 200168674 Y1 KR200168674 Y1 KR 200168674Y1
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South Korea
Prior art keywords
main body
water
fastening portion
connector
cold
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KR2019990015979U
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Korean (ko)
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정성훈
권정자
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정성훈
권정자
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Priority to KR2019990015979U priority Critical patent/KR200168674Y1/en
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Publication of KR200168674Y1 publication Critical patent/KR200168674Y1/en

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/48Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/481Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • C02F2201/004Seals, connections

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Filtration Of Liquid (AREA)

Abstract

본 고안은 경수(硬水)에 포함된 중금속 물질을 제거하여 연수(軟水)로 만드는 연수기에 관한 것으로, 종래 냉·온수 분리형 연수기에 있어서, 측벽 체결부(2c)에 내주면에 나사산이 형성된 제2연결구(9)가 용접되어, 연수기(1)와 연결부재, 혹은 연수기(1)와 냉온수혼합기의 체결이 보다 긴밀하게 되고, 이들의 조립작업이 별도의 부재사용없이 편리하게 이루어지도록 하는 것이다.The present invention relates to a water softener that removes heavy metals contained in hard water to make soft water. In the conventional cold / hot water split type softener, a second connector having a thread formed on an inner circumferential surface of the side wall fastening part 2c is provided. (9) is welded so that the connection between the water softener 1 and the connecting member or the water softener 1 and the hot and cold water mixer becomes more tight, and their assembling work is conveniently performed without using a separate member.

Description

연수기{Water Softener}Water Softener

본 고안은 경수(硬水)에 포함된 중금속 물질을 제거하여 연수(軟水)로 만드는 연수기에 관한 것으로, 특히 냉·온수 분리형 연수기에 있어서, 소정 규격으로 대량생산된 냉온수혼합기나, 연결부재와의 체결이 보다 긴밀하게 이루어지도록 된 연수기에 관한 것이다.The present invention relates to a water softener which removes heavy metals contained in hard water to make soft water. Especially, in a cold / hot water split type softener, it is fastened with a cold / hot water mixer or a connecting member mass-produced to a predetermined standard. The water softener is to be made more closely.

주지된 바와 같이, 중금속 물질이 함유된 경수를 연수로 바꾸어주는 연수기는 통상 냉온수혼합기에 체결되어 연수된 물을 샤워기 등의 배출기구를 통해 외부로 직접 배출하는 냉·온수 일체형 연수기와, 냉·온수공급도관과 냉온수혼합기의 냉·온수라인에 각각 별도로 설치되어 연수된 냉·온수가 냉온수혼합기로 공급되도록 하는 냉·온수 분리형 연수기로 구분할 수 있으며, 이중 냉·온수 분리형 연수기는 도 1에 도시된 바와 같다.As is well known, a softener for converting hard water containing heavy metals into soft water is usually combined with a cold / hot water mixer and a cold / hot water integrated softener which directly discharges the soft water to the outside through a discharge device such as a shower, and cold / hot water. It can be divided into cold and hot water separated water softeners, which are installed separately in the cold and hot water lines of the supply conduit and cold and hot water mixers, so that the cold and hot water fed to the cold and hot water mixers can be supplied, and the dual cold and hot water separate water softeners are shown in FIG. same.

도 5에 의하면, 종래 냉·온수 분리형 연수기(1)는, 원통형의 본체(2)와, 외부로 개구된 상면 체결부(도시안됨)에 나사산 결합되는 캡(3), 외부로 개구된 하면 체결부(2b)에 나사산 결합되어 연통되는 제1연결구(4), 제1연결구(4)에 한쪽 선단이 고정되어 본체(2)에 수직으로 내장되는 스트로우(5), 스트로우(5)의 외주면에 구비되는 영구자석(6), 스트로우(5)의 자유단에 고정되는 제1필터(17), 본체(2)의 내부에 충진되는 이온교환부재(8) 및, 본체(2)의 측벽(2a)에 외부로 개구되게 형성된 측벽 체결부(2c')로 이루어진 구조로 되어 있다. 또한, 이에 도시된 바와 같이 상기 측벽 체결부(2c')를 중심으로 한 측벽(2)의 내면에는 제2필터(11')가 선택적으로 용접고정된다.According to FIG. 5, the conventional cold / hot water separation type softener 1 has a cylindrical main body 2, a cap 3 threadedly coupled to an upper surface fastening portion (not shown) opened to the outside, and a lower surface fastening opened to the outside. On the outer circumferential surface of the straw (5) and the straw (5), one end is fixed to the first connector (4), the first connector (4) which is threadedly coupled to the portion (2b) and is embedded perpendicularly to the main body (2). Permanent magnet (6) provided, the first filter 17 is fixed to the free end of the straw (5), the ion exchange member (8) filled in the interior of the body 2, and the side wall (2a) of the body (2) The side wall fastening part 2c 'formed so that it may open to the outside may be made into the structure. In addition, as shown therein, the second filter 11 ′ is selectively welded to the inner surface of the side wall 2 around the side wall fastening portion 2 c ′.

도 6는 도 5의 요부 확대도인 바, 이를 참조해 보면, 상기 측벽 체결부(2c')는 본체(2)의 안쪽으로 돌출되게 형성되고, 이의 내주면은 나사산(2d)이 형성된 구조로 되어 있다. 한편, 상기 측벽 체결부(2c')는 필요에 따라서 본체(2)의 바깥쪽으로 돌출될 수 있음은 물론이다.6 is an enlarged view of a main part of FIG. 5, referring to this, the side wall fastening part 2c ′ is formed to protrude to the inside of the main body 2, and an inner circumferential surface thereof has a structure in which a thread 2d is formed. have. On the other hand, the side wall fastening portion (2c ') can of course protrude to the outside of the main body 2 as necessary.

상기 본체(2)의 두께는 비교적 얇으므로, 이와 두께가 동일한 측벽 체결부(2c')는 이의 나사산(2d)의 돌출 높이와 피치가 작게 형성될 수 밖에 없기 때문에 작은 외력에도 나사산(2d)이 마멸되기 쉬우므로 재조립작업이 어렵게 되고, 또한 체결력이 작아서 고압이 작용되는 경우 누수의 우려가 상존는 문제가 있었다.Since the thickness of the main body 2 is relatively thin, the side wall fastening portion 2c 'having the same thickness has a smaller projecting height and pitch of the thread 2d, so that the thread 2d does not have a small external force. Since it is easy to wear, reassembly becomes difficult, and when the high pressure is applied because the fastening force is small, there is a problem that there is a risk of leakage.

또한, 상기 체결부(2c')의 나사산(2d)에 체결되어지는 도관이나 편심유니온 등의 연결부재(12 ; 도 1 참조), 또는 냉온수혼합기(13 ; 도 1 참조)의 체결부 나사산(도시안됨)은 체결부(2c')의 나사산(2d)에 맞물려 결합되어야 하므로, 이들 연결부재(12), 또는 냉온수혼합기(13)의 체결부의 나사산은 체결부(2c')의 나사산(2d)에 상응하도록 돌출 높이와 피치가 작게 형성되어야 한다. 따라서, 상기 체결부(2c')의 나사산(2d)에 체결되는 연결부재(12)나 냉온수혼합기(13)는 소정 규격으로 대량 생산된 연결부재(12)나 냉온수혼합기(13)를 이용할 수 없고, 특별 제작된 것을 이용해야 하는 문제가 발생되었다. 이는 소정 규격으로 대량 생산되어진 연결부재(12) 및 냉온수혼합기(13)는 이의 체결부의 나사산이 상기 체결부(2c')의 나사산(2d)보다 돌출 높이와 피치가 크기 때문에 상호 맞물릴수 없기 때문이다.Further, a connecting member 12 (see FIG. 1) such as a conduit or an eccentric union fastened to the screw thread 2d of the fastening part 2c ', or a fastening part thread (shown in FIG. 1) of a cold / hot water mixer 13 (see FIG. 1). Should be engaged with the threaded portion 2d of the fastening portion 2c ', so that the threads of these connecting members 12, or the fastening portion of the cold / hot water mixer 13, are connected to the threaded portion 2d of the fastening portion 2c'. Corresponding heights and pitches should be made smaller. Therefore, the connecting member 12 or the cold / hot water mixer 13 fastened to the screw thread 2d of the fastening part 2c 'cannot use the connecting member 12 or the hot / cold water mixer 13 produced in a predetermined size. In other words, there was a problem of using specially made ones. This is because the connection member 12 and the hot and cold water mixer 13, which have been mass-produced in a predetermined size, cannot be interlocked with each other because the thread of the fastening portion thereof has a larger protrusion height and pitch than the thread 2d of the fastening portion 2c '. to be.

이에 본 고안은 상기와 같은 문제를 해소하기 위하여 안출된 것으로, 냉·온수 분리형 연수기에 있어서, 소정 규격으로 대량 생산된 냉온수혼합기나 연결부재와의 체결이 보다 긴밀하게 이루어지도록 하는 연수기를 제공함에 그 목적이 있다.The present invention has been devised to solve the above problems, in the cold and hot water separation type water softener, to provide a water softener to be tightly coupled to the hot and cold water mixer or connecting member mass produced in a predetermined standard There is a purpose.

도 1은 냉온수 분리형 연수기와 냉온수혼합기가 연결부재을 매개로 연결되어진 상태를 나타내는 정면도,1 is a front view showing a state in which the cold and hot water separate softener and the cold and hot water mixer are connected through a connecting member;

도 2는 도 1의 Ⅰ-Ⅰ선 부분단면도로서, 본 고안에 따른 연수기를 도시한 도면,2 is a partial cross-sectional view taken along the line I-I of FIG. 1, showing a water softener according to the present invention;

도 3은 도 2의 요부 확대도,3 is an enlarged view illustrating main parts of FIG. 2;

도 4는 도 3에 대한 대응도로서, 본 고안의 다른 실시예를 도시한 도면,4 is a diagram corresponding to FIG. 3, illustrating another embodiment of the present invention;

도 5는 도 2에 대한 대응도로서, 종래 기술에 따른 연수기를 도시한 도면,FIG. 5 is a diagram corresponding to FIG. 2, illustrating a water softener according to the prior art; FIG.

도 6는 도 5의 요부 확대도이다.6 is an enlarged view illustrating main parts of FIG. 5.

1,1' ; 연수기, 2 ; 본체,1,1 '; Water softener, 2; main body,

2a ; 측벽, 2b ; 하면 체결부,2a; Sidewalls, 2b; Underside fastening,

2c ; 측벽 체결부, 2d ; 나사산,2c; Sidewall fastening, 2d; Thread,

3 ; 캡, 3a ; 손잡이,3; Cap, 3a; handle,

4 ; 제1연결구, 5 ; 스트로우,4 ; First connector 5; Straw,

6 ; 영구자석, 7 ; 제1필터,6; Permanent magnet, 7; First filter,

8 ; 이온교환부재, 9 ; 제2연결구,8 ; Ion exchange member, 9; Second connector,

9a ; 본체, 9b ; 나사산,9a; Main body, 9b; Thread,

9c ; 체결부, 9d ; 스토퍼,9c; Fastening, 9d; stopper,

9e ; O-링 삽입홈, 10 ; 용접부,9e; O-ring insert groove, 10; Welded,

11 ; 제2필터, 12 ; 연결부재,11; Second filter, 12; Connecting Member,

13 ; 냉온수혼합기.13; Cold and hot water mixer.

상기와 같은 목적을 달성하기 위한 본 고안은, 구조로 되어 있다.The present invention for achieving the above object has a structure.

이하 본 고안을 첨부된 예시도면에 의거하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2에 의하면 본 고안에 따른 연수기는, 원통형의 본체(2)와, 외부로 개구된 상면 체결부(도시안됨)에 나사산 결합되는 캡(3), 외부로 개구된 하면 체결부(2b)에 나사산 결합되어 연통되는 제1연결구(4), 제1연결구(4)에 한쪽 선단이 고정되어 본체(2)에 수직으로 내장되는 스트로우(5), 스트로우(5)의 외주면에 구비되는 영구자석(6), 스트로우(5)의 자유단에 고정되는 제1필터(7), 본체(2)의 내부에 충진되는 이온교환부재(8) 및, 본체(2)의 측벽(2a)에 외부로 개구되게 형성된 측벽 체결부(2c)로 이루어지되, 측벽 체결부(2c)에는 제2연결구(9)가 용접 부착되어 있다.According to FIG. 2, the water softener according to the present invention includes a cylindrical main body 2, a cap 3 threadedly coupled to an upper surface fastening portion (not shown) that is opened to the outside, and a lower surface fastening portion 2b that is opened to the outside. One end is fixed to the first connector (4), the first connector (4) connected in threaded communication, the straw (5) is vertically embedded in the main body (2), the permanent magnet provided on the outer peripheral surface of the straw ( 6), the first filter 7 fixed to the free end of the straw 5, the ion exchange member 8 filled in the interior of the main body 2, and openings to the side wall 2a of the main body 2 to the outside. It is made of a side wall fastening portion (2c) is formed, the second connector 9 is welded to the side wall fastening (2c).

도 3은 도 2의 요부 확대도인 바, 이에 따르면, 상기 제2연결구(9)는, 본체(9a)의 한쪽 선단에 측벽 체결부(2c)에 용접되는 체결부(9c)가 돌출되게 형성되고, 본체(9a)의 내주면에는 나사산(9b)이 형성되며, 본체(2)의 측벽 체결부(9c)의 내주면은 나사산이 형성되지 않으면서 내경이 확대되어 있다. 상기 측벽 체결부(9c)는 용접시 나사산(9b)이 변성되지 않도록 하는 기능을 한다.3 is an enlarged view of the main part of FIG. 2, and accordingly, the second connector 9 is formed such that the fastening part 9c welded to the side wall fastening part 2c protrudes from one end of the main body 9a. The thread 9b is formed on the inner circumferential surface of the main body 9a, and the inner diameter of the inner circumferential surface of the side wall fastening portion 9c of the main body 2 is enlarged without the thread formed. The side wall fastening portion 9c functions to prevent the thread 9b from being modified during welding.

또한, 도 2 및 도 3에 따르면, 상기 측벽 체결부(2c)는 본체(2)의 안쪽으로 돌출되어 있지만, 필요에 따라서는 본체(2)의 바깥쪽으로 돌출시킬 수도 있음은 물론이다.2 and 3, the side wall fastening portion 2c protrudes inwardly of the main body 2, but may of course also protrude outward of the main body 2 as necessary.

한편, 상기 제2연결구(9)의 다른 한쪽 선단에는 도 2에 도시된 바와 같이 제2연결구(9)에 제2필터(11)가 직접 용접고정될 수 있는 바, 이러한 경우 제2필터(11)의 용접부에 인접한 제2연결구(9)의 나사산이 변성되지만, 변성된 제2필터(11)측 나사산은 스토퍼 기능을 수행하게 된다.Meanwhile, as shown in FIG. 2, the second filter 11 may be directly welded and fixed to the second connector 9 at the other end of the second connector 9. In this case, the second filter 11 may be fixed. The thread of the second connector 9 adjacent to the weld portion of the c) is modified, but the thread of the modified second filter 11 side performs the stopper function.

도 4는 본 고안의 다른 실시예를 도시한 도면인 바, 이에 따르면, 제2연결구(9)의 다른 한쪽 선단 내주면에 O-링 삽입홈(9e)과 스토퍼(9d)가 순차적으로 인접되게 형성되어 있다. 이러한 경우, 제2연결구(9) 내부에 밀봉을 위한 O-링(도시안됨)이 삽입되므로, 제2연결구(9)와 연결부재(12)의 체결부, 또는 제2연결구(9)와 냉온수혼합기(13)의 체결부 간의 밀봉성이 크게 향상되고, 또한 제2연결구(9)의 내부에 체결되는 연결부재(12)의 체결부, 또는 냉온수혼합기(13)의 체결부의 삽입 길이를 적절하게 제어할 수 있게 되는 장점이 있다.FIG. 4 is a view showing another embodiment of the present invention, in which the O-ring insertion groove 9e and the stopper 9d are sequentially formed adjacent to the inner peripheral surface of the other end of the second connector 9 in sequence. It is. In this case, since the O-ring (not shown) for sealing is inserted into the second connector 9, the fastening portion of the second connector 9 and the connection member 12, or the second connector 9 and the cold and hot water The sealability between the fastening portions of the mixer 13 is greatly improved, and the insertion length of the fastening portion of the connecting member 12 or the fastening portion of the cold / hot water mixer 13 fastened to the inside of the second connector 9 is appropriately adjusted. There is an advantage to being able to control.

본 고안에 따르면, 제2연결구(9)가 측벽 체결부(2c)에 용접 체결되고, 제2연결구(9)의 나사산(9b)의 칫수는 임의로 자유롭게 결정할 수 있으므로, 규격화된 급수용 도관이나 냉·온수조절밸브에 별도의 부재사용없이 긴밀하게 연결할 수 있게 된다.According to the present invention, the second connector 9 is welded to the side wall fastening portion 2c, and the dimensions of the thread 9b of the second connector 9 can be arbitrarily determined freely, so that a standardized water supply conduit or cold · It can be connected closely to the hot water control valve without using any member.

한편, 종래에는 도 5에 도시된 바와 같이 제1필터(17)의 외경이 본체(2)의 하부 체결부(2b)의 관통홀 직경보다 크게 형성되어 있어서, 손잡이(3a)를 이용하여 본체(2)로부터 캡(3)을 연 후, 스트로우(5)의 자유단에 제1필터(17)를 조립하거나, 이로부터 제1필터(17)를 분해해야 하는 번거로움이 발생된다.Meanwhile, as illustrated in FIG. 5, the outer diameter of the first filter 17 is larger than the through hole diameter of the lower fastening part 2b of the main body 2, and thus, the main body (using the handle 3a) is used. After opening the cap 3 from 2), the trouble of assembling the first filter 17 at the free end of the straw 5 or disassembling the first filter 17 is generated.

그러나, 도 2에 도시된 바와 같이 제1필터(7)의 외경을 본체(2)의 하부 체결부(2b)의 관통홀 직경보다 작게 하면, 제1연결구(4)의 분해시 스트로우(5) 및 제1필터(7)를 하부 체결부(2b)의 관통홀을 통해서 본체(2)로부터 일체로 끄집어 낼 수 있게 되어, 제1필터(7)의 조립 및 분해작업이 공간상의 제약없이 손쉽게 이루어지는 잇점이 있다.However, as shown in FIG. 2, when the outer diameter of the first filter 7 is smaller than the diameter of the through hole of the lower fastening portion 2b of the main body 2, the straw 5 when disassembling the first connector 4 is removed. And the first filter 7 can be pulled out integrally from the main body 2 through the through hole of the lower fastening part 2b, so that the assembly and disassembly of the first filter 7 can be easily performed without space limitation. There is an advantage.

이상 상기한 바와 같은 본 고안에 따르면, 종래 냉·온수 분리형 연수기에 있어서, 측벽 체결부에 내주면에 나사산이 형성된 제2연결구가 용접되어, 연수기와 연결부재, 혹은 연수기와 냉온수혼합기의 체결이 보다 긴밀하게 되고, 소정 규격으로 대량 생산된 연결부재나 냉온수혼합기를 이용할 수 있게 되는 효과가 있다.According to the present invention as described above, in the conventional cold and hot water separation type water softener, the second connector having a thread formed on the inner circumferential surface of the side wall fastening portion is welded, so that the connection between the water softener and the connecting member or the water softener and the cold and hot water mixer is more tight. And, there is an effect that can be used in a mass production connection member or hot and cold water mixer in a predetermined standard.

또한, 상기 연수기의 제1필터의 외경을 하부 체결부의 관통홀 직경보다 작게하면, 제1필터의 조립·분해작업이 편리하게 되는 잇점이 있다.In addition, when the outer diameter of the first filter of the water softener is smaller than the diameter of the through hole of the lower fastening portion, the assembly and disassembly of the first filter may be convenient.

Claims (3)

원통형의 본체(2)와, 외부로 개구된 상면 체결부에 나사산 결합되는 캡(3), 외부로 개구된 하면 체결부(2b)에 나사산 결합되어 연통되는 제1연결구(4), 제1연결구(4)에 한쪽 선단이 고정되어 본체(2)에 수직으로 내장되는 스트로우(5), 스트로우(5)의 외주면에 구비되는 영구자석(6), 스트로우(5)의 자유단에 고정되는 제1필터(7), 본체(2)의 내부에 충진되는 이온교환부재(8) 및, 본체(2)의 측벽(2a)에 외부로 개구되게 형성된 측벽 체결부(2c)로 이루어진 연수기에 있어서,A cylindrical main body 2, a cap 3 which is threaded to an upper surface fastening portion opened to the outside, a first connector 4 and a first connector which is threaded to communicate with the lower surface fastening portion 2b opened to the outside. One end is fixed to (4) and the first is fixed to the free end of the straw (5), the permanent magnet (6) provided on the outer peripheral surface of the straw (5) is built perpendicular to the main body (2) In the water softener comprising the filter 7, the ion exchange member 8 filled in the inside of the main body 2, and the side wall fastening portion 2c formed to be opened to the side wall 2a of the main body 2 to the outside, 상기 측벽 체결부(2c)에 용접되는 체결부(9c)가 본체(9a)의 한쪽 선단에 돌출되고, 본체(9a)의 내주면에 나사산(9b)이 형성된 제2연결구(9)가 구비되되, 체결부(9c)의 내경이 확대되어진 것을 특징으로 하는 연수기.A fastening part 9c welded to the side wall fastening part 2c protrudes at one end of the main body 9a, and a second connector 9 having a thread 9b formed on the inner circumferential surface of the main body 9a is provided. A water softener, characterized in that the inner diameter of the fastening portion 9c is enlarged. 제 1항에 있어서, 상기 제2연결구(9)의 다른 한쪽 선단의 내주면에 O-링 삽입홈(9e)과 스토퍼(9d)가 순차적으로 인접하여 형성되어진 것을 특징으로 하는 연수기.The water softener according to claim 1, wherein an O-ring insertion groove (9e) and a stopper (9d) are sequentially formed on the inner circumferential surface of the other end of the second connector (9). 제 1항 또는 제 2항에 있어서, 상기 제1필터(7)의 외경이 본체(2)의 하부 체결부(2b)의 외경보다 작게 형성되어, 하부 체결부(2b)를 통해 출입이 가능하게 된 것을 특징으로 하는 연수기.According to claim 1 or 2, wherein the outer diameter of the first filter 7 is formed smaller than the outer diameter of the lower fastening portion 2b of the main body 2, it is possible to enter and exit through the lower fastening portion (2b) Water softener characterized in that it became.
KR2019990015979U 1999-08-05 1999-08-05 Water softener KR200168674Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100458981B1 (en) * 2002-01-25 2004-12-08 정승훈 Dispersion apparatus for water of softner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100458981B1 (en) * 2002-01-25 2004-12-08 정승훈 Dispersion apparatus for water of softner

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