KR0134902Y1 - Check valve of a hydrant - Google Patents

Check valve of a hydrant Download PDF

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Publication number
KR0134902Y1
KR0134902Y1 KR2019950006709U KR19950006709U KR0134902Y1 KR 0134902 Y1 KR0134902 Y1 KR 0134902Y1 KR 2019950006709 U KR2019950006709 U KR 2019950006709U KR 19950006709 U KR19950006709 U KR 19950006709U KR 0134902 Y1 KR0134902 Y1 KR 0134902Y1
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KR
South Korea
Prior art keywords
valve
water
opening
closing plate
water pressure
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KR2019950006709U
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Korean (ko)
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KR960035013U (en
Inventor
이상명
Original Assignee
이두근
유진금속공업주식회사
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Priority to KR2019950006709U priority Critical patent/KR0134902Y1/en
Publication of KR960035013U publication Critical patent/KR960035013U/en
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Publication of KR0134902Y1 publication Critical patent/KR0134902Y1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K19/00—Arrangements of valves and flow lines specially adapted for mixing fluids
    • F16K19/006—Specially adapted for faucets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)

Abstract

본 고안은 수도꼭지의 온냉수 편심유니온에 결합되어 온수와 냉수에 수압차가 있을 때 어느 한쪽의 물이 다른 쪽 배관으로 역류하는 것을 방지하는 역류방지기에 관한 것으로, 내부 둘레에 경사곡면(8)이 형성되고, 내부 중앙에 밸브(4)를 결합하기 위한 밸브결합구멍(10)이 형성된 밸브고정구(12)가 일정간격으로 방사상으로 형성된 복수개의 리브(14)에 의하여 연결되어 구성된 밸브가이드(2)의 내부에, 상부는 반구형으로 상면이 요입된 개폐판(16)이 형성되고, 하부는 반구형의 걸림돌부(18)가 형성된 탄성재질의 밸브(4)가 결합되어 구성된 것이다.The present invention relates to a backflow preventer coupled to the hot and cold water eccentric union of the faucet to prevent backflow of either water back to the other pipe when there is a water pressure difference between the hot and cold water, the inclined curved surface (8) is formed around the inside Of the valve guide (2) formed by connecting a plurality of ribs (14) formed radially at regular intervals with a valve fixing hole (12) having a valve engaging hole (10) for engaging the valve (4) in the inner center thereof. Inside, the upper part is formed in the opening and closing plate 16 in which the upper surface is recessed in a hemispherical shape, the lower part is composed of a combination of the valve 4 of the elastic material formed with a hemispherical locking portion 18.

본 고안은 온수와 냉수에 수압차가 있어서 유출측의 수압이 유입측의 수압보다 높을 경우에는 수압이 개폐판(16) 상면의 요입부에 작용하게 되므로, 개폐판(16)이 외측 하방으로 밀리면서, 개폐판(16)의 저면 둘레가 밸브가이드(2) 내부 둘레의 경사곡면(8)에 밀착되므로, 물이 유출측으로부터 유입측으로 역류하는 것을 방지하게 된다. 따라서 매우 단순한 구조로 되어 있음에도 불구하고 확실하게 역류방지 기능을 하게 되는 것이다.The present invention has a hydraulic pressure difference in the hot water and cold water, so that when the water pressure on the outflow side is higher than the water pressure on the inflow side, the water pressure acts on the indentation portion of the upper surface of the opening and closing plate 16, so that the opening and closing plate 16 is pushed downward to the outside. Since the bottom circumference of the opening and closing plate 16 is in close contact with the inclined curved surface 8 around the inside of the valve guide 2, water is prevented from flowing back from the outflow side to the inflow side. Therefore, despite being a very simple structure, it will certainly function as a backflow prevention function.

Description

수도꼭지의 역류방지기Faucet backflow preventer

제1도는 밸브의 저면도.1 is a bottom view of the valve.

제2도는 제1도의 가-가선 단면도.2 is a cross-sectional view of FIG.

제3도는 밸브가이드의 평면도.3 is a plan view of the valve guide.

제4도는 제3도의 나-나선 단면도.4 is a helical cross-sectional view of FIG.

제5도는 본 고안의 종단면도.5 is a longitudinal sectional view of the present invention.

제6도는 본 고안의 물의 흐르는 상태의 종단면도.6 is a longitudinal cross-sectional view of a flowing state of the present invention.

제7도는 종래의 고안의 종단면도.7 is a longitudinal sectional view of a conventional design.

제8도는 종래의 고안의 물이 흐르는 상태의 종단면도.8 is a longitudinal sectional view of a state in which water of a conventional design flows.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2 : 밸브가이드 4 : 밸브2: Valve Guide 4: Valve

6 : 패킹결합홈 8 : 경사곡면6: packing coupling groove 8: inclined curved surface

10 : 밸브결합구멍 12 : 밸브고정구10 valve mounting hole 12 valve fixing hole

14 : 리브 16 : 개폐판14: rib 16: opening and closing board

18 : 걸림돌부 20 : 요입부18: jamming part 20: concave part

본 고안은 수도꼭지의 역류방지기에 관한 것으로, 특히 수도꼭지의 온냉수 편심유니온에 결합되어 온수와 냉수에 수압차가 있을 때 어느 한쪽의 물이 다른 쪽 배관으로 역류하는 것을 방지하는 역류방지기에 관한 것이다.The present invention relates to a backflow preventer of a faucet, and more particularly, to a backflow preventer which is coupled to the hot and cold water eccentric union of the faucet to prevent backflow of either water to the other pipe when there is a water pressure difference between hot water and cold water.

제7도 및 제8도는 종래의 역류방지기의 단면도로서, 밸브가이드(101)의 둘레에 패킹(102)이 결합되고, 밸브가이드(101)의 내부에는 밸브커버(103)와 밸브(104)가 결합되고, 밸브커버(103)와 밸브(104) 사이에는 패킹(102a)이 결합되고, 밸브가이드(101)의 상부에는 밸브가이드커버(105)가 결합되고, 밸브(104)는 코일스프링(106)에 의하여 지지되는 구조이다.7 and 8 are cross-sectional views of a conventional backflow preventer, the packing 102 is coupled to the circumference of the valve guide 101, the valve cover 103 and the valve 104 inside the valve guide 101 is It is coupled, the packing 102a is coupled between the valve cover 103 and the valve 104, the valve guide cover 105 is coupled to the upper portion of the valve guide 101, the valve 104 is a coil spring 106 Is supported by).

유출측(상부) 수압이 유입측(하부) 수압보다 높아서 물이 역류하려고 할 경우에는 코일스프링(106) 및 수압차에 의하여 제7도에 도시된 바와 같이 밸브가 밸브가이드(101)를 밀폐하게 되므로 역류가 방지되고, 정상적인 사용상태에서는 유출측 수압이 유입측 수압보다 낮기 때문에 제8도에 도시된 바와 같이 수압차에 의하여 코일스프링(106)이 수축되면서 밸브가 열려서 물이 흐르게 된다. 어때 화살표는 물이 흐르는 방향을 나타낸다.If the water pressure is higher than the inflow (lower) pressure due to the outflow (upper) pressure, the valve closes the valve guide 101 by the coil spring 106 and the water pressure difference as shown in FIG. Therefore, backflow is prevented, and in a normal use state, since the outflow water pressure is lower than the inflow water pressure, as shown in FIG. 8, the coil spring 106 is contracted by the water pressure difference, so that the valve opens and water flows. How about the arrow shows the direction of water flow.

밸브가이드(101) 둘레의 패킹(102)은 밸브가이드(101)의 외벽과 편심유니온의 내벽 사이로 물이 통과함으로써, 밸브가 작동되더라도 역류방지기능을 제대로 발휘하지 못하는 문제점을 없애기 위한 것이고, 밸브커버(103)와 밸브(104) 사이에 결합된 패킹(102a)은 밸브가 작동된 다음에 밸브(104)와 밸브가이드(101) 사이로 물이 통과하는 것을 방지하기 위한 것이다.The packing 102 around the valve guide 101 is intended to eliminate the problem that the backflow prevention function is not properly exerted even when the valve is operated by water passing between the outer wall of the valve guide 101 and the inner wall of the eccentric union. The packing 102a coupled between the 103 and the valve 104 is intended to prevent water from passing between the valve 104 and the valve guide 101 after the valve is operated.

종래의 역류방지기는 구조가 복잡할 뿐만 아니라 여러개의 부품이 사용되므로, 제조원가가 높고, 조립이 어려우며, 조립에 많은 시간을 요하는 문제점이 있었다.Conventional backflow preventer has a problem in that the manufacturing cost is high, the assembly is difficult, and the assembly takes a lot of time because not only the structure is complicated but also several parts are used.

그리고 코일스프링을 사용함으로써, 코일스프링 사이에 이물질이 끼일 경우에는 밸브가 잘 작동되지 않는 문제점이 있었다.And by using the coil spring, there was a problem that the valve does not work well when foreign matter is caught between the coil spring.

본 고안은 종래의 이러한 문제점을 해결하기 위하여 고안된 것으로, 종래의 고안에서 필연적으로 사용되는 밸브가이드커버를 없애고, 밸브커버와 밸브 및 그 사이의 패킹, 밸브를 탄력 지지하는 코일스프링 등의 기능을 모두 갖는 단순한 구조로 된 탄성재질의 밸브를 밸브가이드의 내부에 단순히 가압 결합하여 된 것으로써, 역류방지기의 구조를 매우 단순화하였다.The present invention is designed to solve these problems of the prior art, and eliminates the valve guide cover that is inevitably used in the conventional design, all functions of the valve cover and the valve and the packing therebetween, the coil spring for elastically supporting the valve, etc. The simple structure of the elastic valve having a simple structure by simply pressurizing the inside of the valve guide, thereby greatly simplifying the structure of the backflow preventer.

이하 첨부된 도면에 의거하여 본 고안을 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 고안은 제5도에 도시된 바와 같이 밸브가이드(2)의 내부에 밸브(4)가 결합되어 구성된 것이다. 제1도는 제2도의 밸브를 저면도로 나타낸 것이고 제2도는 밸브의 종단면도이고, 제3도는 밸브가이드이 평면도이고, 제4도는 밸브가이드의 종단면도이다.According to the present invention, as shown in FIG. 5, the valve 4 is coupled to the inside of the valve guide 2. FIG. 1 is a bottom view of the valve of FIG. 2, FIG. 2 is a longitudinal cross-sectional view of the valve, FIG. 3 is a plan view of the valve guide, and FIG. 4 is a longitudinal cross-sectional view of the valve guide.

제4도에 도시된 바와 같이 밸브가이드(2)는 공지의 것과 마찬가지로 외면에 패킹(도시 안됨)을 결합하기 위한 패킹결합홈(6)이 형성되고, 내부 둘레에는 경사곡면(8)이 형성되고, 내부 중앙에는 밸브(4)를 결합하기 위한 밸브결합구멍(10)이 형성된 밸브고정구(12)가 일정간격으로 방사상으로 형성된 복수개의 리브(14)에 의하여 밸브가이드(2)의 내면과 연결되어 있는 구조이고, 밸브(4)는 탄성재질로 된 것으로서, 상부는 반구형으로 상면이 요입된 개폐판(16)이 형성되고, 하부는 반구형의 걸림돌부(18)가 형성되고, 걸림돌부(18)이 저면에는 원추형의 요입부(20)가 형성되어 있는 구조이다.As shown in FIG. 4, the valve guide 2 has a packing coupling groove 6 for coupling a packing (not shown) to the outer surface as in the known art, and an inclined curved surface 8 is formed at the inner circumference thereof. In the inner center, a valve fixing hole 12 having a valve engaging hole 10 for engaging the valve 4 is connected to the inner surface of the valve guide 2 by a plurality of ribs 14 formed radially at regular intervals. The valve 4 is made of an elastic material, the upper portion is formed in the hemispherical shape, the upper and lower opening and closing plate 16 is formed, the lower portion is formed in the hemispherical locking portion 18, the locking portion 18 This bottom surface is a structure in which the concave recessed part 20 is formed.

따라서 제5도에 도시된 바와 같이 본 고안은 자연상태에서 밸브(4)의 개폐판(16)의 직경은 밸브가이드(2)의 내경과 동일하고, 밸브(4)의 걸림돌부(18)의 직경은 밸브가이드(2)의 밸브결합구멍(10)의 직경보다 다소 길고, 밸브(4) 개폐판(16)과 걸림돌부(18) 사이 부분의 직경 및 두께는 밸브결합구멍(10)의 직경 및 두께와 각각 동일하다.Therefore, as shown in FIG. 5, the present invention has a diameter of the opening / closing plate 16 of the valve 4 in a natural state that is the same as the inner diameter of the valve guide 2, and that of the locking portion 18 of the valve 4. The diameter is slightly longer than the diameter of the valve coupling hole 10 of the valve guide 2, and the diameter and thickness of the portion between the valve opening and closing plate 16 and the locking protrusion 18 are the diameter of the valve coupling hole 10. And thickness, respectively.

밸브(4)를 밸브가이드(2)에 결합하는 방법은 밸브(4)를 밸브가이드(2)의 내부에 삽입하여 가압하여 아래로 누르면, 밸브(4)의 걸림돌부(18)가 수축되면서 밸브가이드(2)의 밸브고정구(12)이 밸브결합구멍(10)에 삽입된다. 밸브(4)의 걸림돌부(18)가 밸브결합구멍(10)에 완전히 삽입되어 밸브결합구멍(10)의 하부로 노출되면 걸림돌부(18)는 탄성에 의하여 다시 팽창되므로 밸브결합구멍(10)으로부터 밸브(4)가 쉽게 빠져 나오지 않게 된다.In the method of coupling the valve 4 to the valve guide 2, the valve 4 is inserted into the valve guide 2 and pressurized downward, and the valve protrusion 4 is contracted while the locking protrusion 18 of the valve 4 is contracted. The valve stopper 12 of the guide 2 is inserted into the valve engaging hole 10. When the locking protrusion 18 of the valve 4 is completely inserted into the valve coupling hole 10 and exposed to the lower portion of the valve coupling hole 10, the locking protrusion 18 is inflated again by elasticity so that the valve coupling hole 10 The valve 4 does not come out easily from the.

이와 같이 구성된 본 고안은 밸브(4)의 개폐판(16)의 직경이 밸브가이드(2)의 내경과 동일하므로, 수도꼭지를 잠근 상태에서는 제5도에 도시된 바와 같이 밸브(4)의 개폐판(16)의 끝이 자연스럽게 밸브가이드(2)의 내면에 밀착되어 있는 상태로 된다.Since the diameter of the opening / closing plate 16 of the valve 4 is the same as the inner diameter of the valve guide 2 in this configuration, the opening and closing plate of the valve 4 is shown in FIG. The tip of 16 is naturally in close contact with the inner surface of the valve guide 2.

그러나 수도꼭지를 열면 유입측에 수압이 작용하여 밸브(4)의 개폐판(16) 저면에 압력을 가하게 되므로, 제6도에 도시된 바와 같이 개폐판(16)이 유출측으로 밀리면서 내측으로 수축되어 개폐판(16)과 밸브가이드(2)의 내면 사이에 틈이 생겨 물이 통과하게 된다. 도면에서 화살표는 물이 흐르는 방향 및 개폐판이 수축되는 방향을 나타낸다.However, when the faucet is opened, water pressure acts on the inflow side to apply pressure to the bottom of the opening and closing plate 16 of the valve 4, so that the opening and closing plate 16 is contracted inward while being pushed to the outflow side as shown in FIG. A gap is formed between the opening and closing plate 16 and the inner surface of the valve guide 2 to allow water to pass through. Arrows in the figure indicate the direction in which water flows and the direction in which the opening and closing plate contracts.

온수와 냉수에 수압차가 있어서, 유출측의 수압이 유입측이 수압보다 높을 경우에는 수압이 개폐판(16) 상면의 요입부에 작용하게 되므로, 개폐판(16)이 외측 하방으로 밀리면서, 개폐판(16)의 저면 둘레가 밸브가이드(2) 내부 둘레의 경사곡면(8)에 밀착되므로, 물이 유출측으로부터 유입측으로 역류하는 것을 방지하게 된다.When there is a pressure difference between the hot water and the cold water, and the water pressure on the outflow side is higher than the water pressure, the water pressure acts on the concave portion of the upper surface of the opening and closing plate 16, so that the opening and closing plate 16 is pushed downward to the outside. Since the bottom circumference of the plate 16 is in close contact with the inclined curved surface 8 around the inside of the valve guide 2, water is prevented from flowing back from the outflow side to the inflow side.

밸브(4)의 저면에 형성된 원추형의 요입부(20)는 유입측에 높은 수압이 걸릴 경우 개폐판(16)의 저면이 수압에 밀려서 밸브(40가 밸브결합구멍(10)으로 부터 빠져 나가는 것을 방지해 주는 역할을 한다. 즉, 유입측에 높은 수압이 걸릴 경우 원추형의 요입부(20)의 내면에도 강한 수압을 받게 될 것이므로, 걸림돌부(18)가 팽창되어 밸브결합구멍(10)으로부터 빠져 나가는 것을 어느 정도 방지해 주는 효과가 있다.The conical inlet portion 20 formed on the bottom of the valve 4 has a bottom surface of the opening / closing plate 16 being pushed by the water pressure when high water pressure is applied to the inflow side, so that the valve 40 exits from the valve coupling hole 10. In other words, if high inlet pressure is applied to the inflow side, the inner surface of the conical indentation 20 will be subjected to strong water pressure, so that the locking protrusion 18 is expanded to escape from the valve coupling hole 10. It is effective in preventing some outgoing.

본 고안에서 밸브(4)의 걸림돌부(18)는 반구형으로 하였으나, 상광하협의 형태로 된 것이라면 다른 형태로 된 것이라도 본 고안의 목적을 달성할 수 있다.In the present invention, the locking protrusion 18 of the valve 4 has a hemispherical shape, but if it is in the form of an ordinary light narrowing, it can achieve the object of the present invention even if it is in a different form.

이상과 같이 본 고안은 종래의 것에 비하여 훨씬 간단한 구조로 되어 있음에도 불구하고 훨씬 우수한 효과가 있는 것이다.As described above, the present invention has a much superior effect despite having a much simpler structure than the conventional one.

Claims (1)

외면에 패킹을 결합하기 위한 패킹결합홈(6)이 형성되고, 내부 둘레에 경사곡면(8)이 형성되고, 내부 중앙에 밸브(4)를 결합하기 위한 밸브결합구멍(10)이 형성된 밸브고정구(12)가 일정간격으로 방사상으로 형성된 복수개의 리브(14)에 의하여 연결되어 구성된 밸브가이드(2)의 내부에, 상부는 반구형으로 상면이 요입된 개폐판(16)이 형성되는 공지의 것에 있어서, 걸림돌부(18)에는 원추형의 요입부(20)가 형성되어 밸브(4)가 빠짐을 방지하게 됨을 특징으로 하는 수도꼭지의 역류방지기.A valve fitting groove having a packing coupling groove 6 for coupling the packing to the outer surface, an inclined curved surface 8 formed at the inner circumference, and a valve coupling hole 10 for coupling the valve 4 to the inner center thereof. In the well-known thing in which the opening and closing plate 16 in which the upper part was recessed in the hemispherical shape was formed in the inside of the valve guide 2 comprised by the several rib 14 radially formed at regular intervals (12). , The locking protrusion 18 is a conical inlet portion 20 is formed to prevent the back flow of the faucet, characterized in that the valve (4) to prevent the fall.
KR2019950006709U 1995-04-04 1995-04-04 Check valve of a hydrant KR0134902Y1 (en)

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KR2019950006709U KR0134902Y1 (en) 1995-04-04 1995-04-04 Check valve of a hydrant

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200460247Y1 (en) * 2009-09-09 2012-05-11 정의갑 valve structure for preventing backward flow for hot water circulation system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4030086A1 (en) * 2021-01-14 2022-07-20 AVS, Ingenieur J.C. Römer GmbH Return valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200460247Y1 (en) * 2009-09-09 2012-05-11 정의갑 valve structure for preventing backward flow for hot water circulation system

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