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KR20020031560A - Check valve having pressure control valve - Google Patents

Check valve having pressure control valve Download PDF

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Publication number
KR20020031560A
KR20020031560A KR1020000062093A KR20000062093A KR20020031560A KR 20020031560 A KR20020031560 A KR 20020031560A KR 1020000062093 A KR1020000062093 A KR 1020000062093A KR 20000062093 A KR20000062093 A KR 20000062093A KR 20020031560 A KR20020031560 A KR 20020031560A
Authority
KR
South Korea
Prior art keywords
damper
fluid
pressure
housing
rod
Prior art date
Application number
KR1020000062093A
Other languages
Korean (ko)
Inventor
이윤락
Original Assignee
이계안
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 이계안, 현대자동차주식회사 filed Critical 이계안
Priority to KR1020000062093A priority Critical patent/KR20020031560A/en
Publication of KR20020031560A publication Critical patent/KR20020031560A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/021Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209Check valves or pivoted valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Flow Control (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE: A check valve containing a pressure-controlling damper is provided to equally control flux flowing through a valve by forming a pressure-controlling damper on a front portion of a main damper. CONSTITUTION: A check valve having a pressure controlling damper comprises a first hosing(21) combined to a second housing; an outflow hole(23) guiding a guide rod(31a) by being installed on the first housing; a ring groove(24) formed on an inner circumference of the second housing; a screw face(25) combined with a housing cap(26) by being arranged on an outer circumference of the second housing; a damper guide(31) elastically supporting a spring(32); a main damper(33) controlling flow of fluid by being mounted on a side of the damper guide; a rod(34) fixed in the middle of the main damper; a flux controlling valve(40) formed on the housing cap; a pressure controlling damper(41) elastically supported by a spring(42); and an insert hole(44) sliding along the rod.

Description

압력조절댐퍼가 형성된 체크밸브{Check valve having pressure control valve}Check valve having pressure control damper

본 발명은 압력조절댐퍼가 형성된 체크밸브에 관한 것으로, 보다 상세하게는 메인댐퍼의 전방에 별도의 압력조절댐퍼를 형성하여 밸브를 통해 흐르는 유체의 유량이 일정하도록 하는 압력조절댐퍼가 형성된 체크밸브에 관한 것이다.The present invention relates to a check valve having a pressure regulating damper, and more particularly, to a check valve having a pressure regulating damper which forms a separate pressure regulating damper in front of the main damper so that the flow rate of the fluid flowing through the valve is constant. It is about.

일반적으로 체크밸브는 유체의 흐름을 제어하기 위한 것으로, 유체가 일방향으로 흐를 수 있게 하며 유체가 역류하는 것을 방지하게 된다.In general, the check valve is to control the flow of the fluid, to allow the fluid to flow in one direction and to prevent the back flow of the fluid.

종래의 체크밸브는 도 4에서와 같이 서로 계합되어 이루어지는 하우징(11)의 내부에 스프링(12)에 의해 밸브체(13)가 탄력지지되며, 밸브체(13)의 일측으로 밸브(14)가 형성되어 밸브시트면(15)에 접촉되어 유입홀(16)을 단속하도록 구성되어 있다.In the conventional check valve, as shown in FIG. 4, the valve body 13 is elastically supported by the spring 12 in the housing 11 that is engaged with each other, and the valve 14 is provided on one side of the valve body 13. It is formed to be in contact with the valve seat surface 15 is configured to interrupt the inlet hole (16).

즉, 유입홀(16) 측의 부압에 의해 밸브(14)가 밸브시트면(15)에 밀착되므로 유체의 흐름을 차단하게 되며, 반대로 스프링(13)의 탄력보다 유입홀(16) 측의 정압이 크게 되면 밸브체(13)는 스프링(12)을 가압하며 후퇴하게 된다. 밸브체(13)가 후퇴하게 되면 밸브(14)가 열리게 되고, 유입홀(16)을 통과한 유체가 유출홀(17)을 통해 빠져나가도록 구성되어 있다.That is, since the valve 14 is in close contact with the valve seat surface 15 by the negative pressure at the inlet hole 16 side, the flow of the fluid is blocked, and conversely, the positive pressure at the inlet hole 16 side is greater than the elasticity of the spring 13. When this becomes large, the valve body 13 will retreat, pressurizing the spring 12. When the valve body 13 is retracted, the valve 14 is opened, and the fluid passing through the inlet hole 16 is configured to escape through the outlet hole 17.

그러나 상기한 바와 같은 종래의 체크밸브는 밸브에 작용하는 유체의 압력차가 클 경우에 밸브를 통과하는 유량이 달라지게 되는 문제점이 있었다.However, the conventional check valve as described above has a problem that the flow rate through the valve is changed when the pressure difference of the fluid acting on the valve is large.

따라서 본 발명은 상기한 문제점을 개선하기 위하여 안출된 것으로서, 보다 상세하게는 메인댐퍼의 전방에 별도의 압력조절댐퍼를 형성하여 밸브를 통해 흐르는 유체의 유량이 일정하도록 하는 압력조절댐퍼가 형성된 체크밸브를 제공하는 데 목적이 있다.Therefore, the present invention has been made in order to improve the above problems, more specifically, a pressure control damper is formed to form a separate pressure control damper in front of the main damper so that the flow rate of the fluid flowing through the valve is constant The purpose is to provide.

본 발명은 상기와 같은 목적을 달성하기 위한 수단으로서,The present invention as a means for achieving the above object,

제1 및 제2하우징의 계합으로 형성되는 내부공간에 스프링으로 탄력지지되는 댐퍼가이드가 형성되고, 댐퍼가이드의 일측에 유체의 흐름을 개폐하기 위한 메인댐퍼가 형성되어, 유체가 일방향으로 흐르도록 역류를 방지하는 체크밸브에 있어서,A damper guide elastically supported by a spring is formed in the inner space formed by the engagement of the first and second housings, and a main damper is formed on one side of the damper guide to open and close the flow of the fluid so that the fluid flows in one direction. In the check valve to prevent

상기한 제2하우징의 개방측에 나사결합되고, 유체의 원활한 유입을 위해 내주연이 일측으로 경사진 경사면이 형성되고, 내측 중앙부에 유체가 통과하는 유입공과 유입공 외주에 밸브시트가 형성된 하우징캡과;The housing cap is screwed to the open side of the second housing, the inclined surface inclined to one side to the inner periphery for smooth inflow of the fluid, and the valve cap is formed in the inlet hole and the outer circumference of the inlet hole through which the fluid passes through the inner central part and;

상기한 메인댐퍼의 중심부가 외측으로 연장된 로드가 형성되고, 이 로드에 스프링으로 탄력지지되는 압력조절댐퍼가 별도로 형성되어, 하우징캡 측에서 유입되는 유체의 압력에 따라 내부공간으로 유입되는 유체의 량이 일정하게 조절되는 유량조절밸브와;A rod having a central portion of the main damper extending outward is formed, and a pressure regulating damper that is elastically supported by a spring is formed on the rod, so that the fluid flowing into the inner space depends on the pressure of the fluid flowing from the housing cap side. A flow rate control valve whose amount is constantly adjusted;

제2하우징의 내주연에 끼워지되, 상기 메인댐퍼의 내측에 유체가 통과할 수 있도록 다수의 관통공이 형성된 다공링; 으로 구성되는 것을 특징으로 하며,A porous ring inserted into an inner circumference of the second housing and having a plurality of through holes formed therein to allow fluid to pass through the inner side of the main damper; Characterized in that consists of,

상기한 압력조절댐퍼는 유체의 압력에 의해 로드를 타고 슬라이딩되며, 상기 로드의 끝단에 압력조절댐퍼의 이탈을 방지하기 위한 고정핀이 형성된 것을 특징으로 한다.The pressure control damper is slid through the rod by the pressure of the fluid, characterized in that the fixing pin is formed at the end of the rod to prevent the departure of the pressure control damper.

도 1은 본 발명에 의해 구성된 체크밸브의 단면도.1 is a cross-sectional view of a check valve constructed in accordance with the present invention.

도 2는 본 발명에 의해 구성된 체크밸브의 개방상태도.Figure 2 is an open state diagram of the check valve configured by the present invention.

도 3은 본 발명에 의해 구성된 유량조절밸브가 작동한 상태도.Figure 3 is a state in which the flow control valve configured by the present invention operates.

도 4는 종래기술을 설명하기 위한 도면4 is a view for explaining the prior art

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

21 : 제1하우징 22 : 제2하우징21: 1st housing 22: 2nd housing

23 : 유출공 24 : 링홈23: outlet hole 24: ring groove

26 : 하우징캡 27 : 유입공26: housing cap 27: inlet hole

31 : 댐퍼가이드 32 : 스프링31: damper guide 32: spring

33 : 메인댐퍼 34 : 로드33: main damper 34: rod

40 : 유량조절밸브 41 : 압력조절댐퍼40: flow control valve 41: pressure control damper

42 : 스프링 43 : 고정핀42: spring 43: fixed pin

44 : 삽입공 50 : 다공링44: insertion hole 50: porous ring

본 발명의 구성 및 작동에 따른 실시예를 첨부한 도면에 따라 상세하게 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 의해 구성된 체크밸브의 단면도이며, 도 2는 본 발명에 의해 구성된 체크밸브의 개방상태도이며, 도 3은 본 발명에 의해 구성된 유량조절밸브가 작동한 상태도이다.1 is a cross-sectional view of a check valve constructed in accordance with the present invention, FIG. 2 is an open state diagram of a check valve constructed in accordance with the present invention, and FIG. 3 is a state diagram in which a flow control valve constructed in accordance with the present invention operates.

도면에 표시된 도면부호 100은 체크밸브를 지시하는 것으로, 체크밸브(100)은 제1하우징(21)과 제2하우징(11)이 양측에서 서로 계합되어 하나의 몸체를 이루게 된다.Reference numeral 100 shown in the drawing indicates a check valve, the check valve 100 is the first housing 21 and the second housing 11 is engaged with each other on both sides to form a body.

상기한 제1하우징(21)은 원통형으로 구성되는데, 그 일측에는 유체가 이동되며 댐퍼가이드(31)의 가이드로드(31a)를 안내하는 유출공(23)가 형성된다.The first housing 21 is formed in a cylindrical shape, one side of the fluid is moved and the outlet hole 23 for guiding the guide rod 31a of the damper guide 31 is formed.

제1하우징(21)과 계합되는 제2하우징(22)의 내주연에는 링홈(24)가 형성되며, 외측에는 하우징캡(26)을 나사결합하기 위한 나사면(25)이 형성된다.A ring groove 24 is formed at an inner circumference of the second housing 22 engaged with the first housing 21, and a screw surface 25 for screwing the housing cap 26 is formed at an outer side thereof.

제1 및 제2하우징(21,22)의 계합으로 이루어지는 내부공간(S)에는 종래와 같이 스프링(32)을 탄력지지되는 댐퍼가이드(31)가 형성되고, 댐퍼가이드(31)의 일측에 유체의 흐름을 개폐하기 위한 메인댐퍼(33)가 형성되어 유체가 일방향으로만 흐를 수 있도록 구성된다.In the internal space S formed of the engagement of the first and second housings 21 and 22, a damper guide 31 for elastically supporting the spring 32 is formed, and a fluid is provided at one side of the damper guide 31. The main damper 33 is formed to open and close the flow of the fluid is configured to flow in only one direction.

그리고 상기한 메인댐퍼(33)의 중앙부는 외측으로 길게 연장되어 로드(34)가 형성되고, 이 로드(34)의 끝단에는 하우징캡(26) 측에서 내부공간(S)로 유입되는 유체의 유량을 일정하게 하기 위한 유량조절밸브(40)가 형성된다.In addition, the central portion of the main damper 33 extends to the outside to form a rod 34, and at the end of the rod 34, the flow rate of the fluid flowing into the inner space S from the housing cap 26 side. Flow rate control valve 40 for the constant is formed.

이 유량조절밸브(40)는 로드(34)의 외주에 스프링(42)이 장착되고, 스프링(42)에 탄력지지되는 압력조절댐퍼(41)로 구성된다. 특히, 압력조절댐퍼(41)는 유체의 압력에 따라 로드(34)를 타고 슬라이딩이 가능하도록 삽입공(44)의 직경은 상기 로드(34)의 직경보다 크게 형성된다. 스프링(42)에 의해 탄력지지되며 로드(34)를 타고 슬라이딩되는 압력조절댐퍼(41)의 이탈을 방지하기 위해 로드(34)의 끝단에는 고정핀(43)이 형성된다.The flow rate control valve 40 includes a spring 42 mounted on an outer circumference of the rod 34 and includes a pressure regulating damper 41 elastically supported by the spring 42. In particular, the pressure regulating damper 41 is formed such that the diameter of the insertion hole 44 is larger than the diameter of the rod 34 so as to slide on the rod 34 according to the pressure of the fluid. A fixing pin 43 is formed at the end of the rod 34 to prevent separation of the pressure regulating damper 41 that is elastically supported by the spring 42 and slides on the rod 34.

그리고 상기한 제2하우징(22)의 내주연에 형성된 링홈(24)에는 다공링(50)이 끼워지는데, 이 다공링(50)에는 유체가 통과할 수 있도록 다수의 관통공(51)이 형성되어 있다.In addition, a porous ring 50 is inserted into the ring groove 24 formed at the inner circumference of the second housing 22, and a plurality of through holes 51 are formed in the porous ring 50 to allow fluid to pass therethrough. It is.

이상과 같이 압력조절댐퍼가 형성된 체크밸브(100)의 작동상태를 설명하면 다음과 같다.Referring to the operating state of the check valve 100, the pressure control damper is formed as follows.

상기한 체크밸브(100)는 특히 공압을 위해 작동되는 것으로, 유입구측에 부압이 형성되면 스프링(32)에 의해 탄력지지되는 메인댐퍼(33)가 하우징캡(26)의 밸브시트(29)에 밀착되어 유체의 역류되는 것을 차단하게 된다.In particular, the check valve 100 is operated for pneumatic pressure. When a negative pressure is formed at the inlet side, a main damper 33 elastically supported by the spring 32 is provided at the valve seat 29 of the housing cap 26. Close contact prevents backflow of the fluid.

도 1은 메인댐퍼(33)가 닫힌상태의 도면으로, 유체가 유출공(23)을 통해 역류되려고 할 때에 메인댐퍼(33)는 유체의 압력에 의해 밸브시트(29)에 밀착되어 유체가 역류되는 것을 차단하게 된다.FIG. 1 is a view in which the main damper 33 is closed. When the fluid is to flow back through the outlet hole 23, the main damper 33 is in close contact with the valve seat 29 by the pressure of the fluid so that the fluid flows back. Will be blocked.

도 2는 일반적인 유압으로 유체가 유입되는 상태를 도시한 것으로서, 하우징캡(26)측에서 유체가 유입되면 유체의 압력에 의해 메인댐퍼(33)가 후퇴하게 되어 유입공(27)이 열리게 된다. 이 때 압력조절댐퍼(41)를 지지하는 스프링(42)의 탄발력은 일반적인 상태로 흐르는 유압보다 약간 강하게 설정되어 있으므로 압력조절댐퍼(41)는 크게 변동되지 않는다. 또한, 댐퍼가이드(31)를 탄력지지하는 스프링(32)은 일반적인 흐름의 유압에서 일정구간만큼 댐퍼가이드(31)가 후퇴되도록 설정된다.FIG. 2 illustrates a state in which fluid is introduced by general hydraulic pressure. When fluid is introduced from the housing cap 26, the main damper 33 is retracted by the pressure of the fluid so that the inlet hole 27 is opened. At this time, since the elastic force of the spring 42 supporting the pressure regulating damper 41 is set slightly stronger than the hydraulic pressure flowing in a general state, the pressure regulating damper 41 is not greatly changed. In addition, the spring 32 for elastically supporting the damper guide 31 is set such that the damper guide 31 is retracted by a predetermined period in the hydraulic pressure of the general flow.

도 3은 유입되는 유체의 압력이 클 경우를 도시한 것으로서, 도면에서와 같이 강한 유압에 의해 압력조절댐퍼(41)는 스프링(42)을 가압하며 전진하게 된다. 따라서, 압력조절댐퍼(41)가 유입공(27) 가까이 이동되므로서 유입공(27)으로 입력되는 유체의 량이 일정하게 조절된다. 유입공(27)을 통과하는 유체의 압력에 의해 댐퍼가이드(31)를 지지하는 스프링(32)도 압축되어 유체가 흐를 수 있는 공간이 형성된다.3 illustrates a case where the pressure of the fluid to be introduced is large, as shown in the drawing, the pressure regulating damper 41 presses the spring 42 and moves forward by the strong hydraulic pressure. Therefore, the pressure regulating damper 41 is moved near the inlet hole 27, so that the amount of fluid input to the inlet hole 27 is constantly adjusted. The spring 32 supporting the damper guide 31 is also compressed by the pressure of the fluid passing through the inlet hole 27 to form a space in which the fluid can flow.

따라서, 강한 압력으로 유체가 유입되더라도 유량조절밸브(40)의 작동으로 유입공(27)으로 입력되는 유체의 유량이 조절되므로서 체크밸브(100)을 통과하는 유량이 일정하게 되는 것이다.Therefore, even though the fluid is introduced at a strong pressure, the flow rate of the fluid input into the inlet hole 27 is controlled by the operation of the flow control valve 40 so that the flow rate passing through the check valve 100 is constant.

이상과 같이 구성되는 체크밸브는 메인댐퍼의 일측에 별도로 스프링에 의해 작용하는 압력조절댐퍼를 형성하여 유입측에서 유입되는 유체의 압력에 따라 상기 압력조절댐퍼가 작동되므로서 메인댐퍼를 통과하는 유체의 량이 일정하게 유지되는 커다란 장점이 있는 것이다.The check valve configured as described above forms a pressure regulating damper acting by a spring separately on one side of the main damper, so that the pressure regulating damper is operated according to the pressure of the fluid flowing from the inlet side. There is a big advantage that the quantity is kept constant.

Claims (2)

제1 및 제2하우징의 계합으로 형성되는 내부공간에 스프링으로 탄력지지되는 댐퍼가이드가 형성되고, 댐퍼가이드의 일측에 유체의 흐름을 개폐하기 위한 메인댐퍼가 형성되어, 유체가 일방향으로 흐르도록 역류를 방지하는 체크밸브에 있어서,A damper guide elastically supported by a spring is formed in the inner space formed by the engagement of the first and second housings, and a main damper is formed on one side of the damper guide to open and close the flow of the fluid so that the fluid flows in one direction. In the check valve to prevent 상기한 제2하우징(22)의 개방측에 나사결합되고, 유체의 원활한 유입을 위해 내주연이 일측으로 경사진 경사면(28)이 형성되고, 내측 중앙부에 유체가 통과하는 유입공(27)과 유입공(27) 외주에 밸브시트(29)가 형성된 하우징캡(26)과;The inlet hole 27 is screwed to the open side of the second housing 22, the inclined surface 28 is inclined toward one side to the inner periphery for smooth inflow of the fluid, and the fluid passes through the inner central portion and A housing cap 26 having a valve seat 29 formed at an outer circumference of the inlet hole 27; 상기한 메인댐퍼(33)의 중심부가 외측으로 연장된 로드(34)가 형성되고, 이 로드(34)에 스프링(42)으로 탄력지지되는 압력조절댐퍼(41)가 별도로 형성되어, 하우징캡(26) 측에서 유입되는 유체의 압력에 따라 내부공간(S)으로 유입되는 유체의 량이 일정하게 조절되는 유량조절밸브(40)와;A rod 34 having a central portion of the main damper 33 extending outward is formed, and a pressure regulating damper 41 elastically supported by the spring 42 is formed on the rod 34 to form a housing cap ( 26) a flow rate control valve 40 in which the amount of fluid introduced into the internal space S is constantly adjusted according to the pressure of the fluid introduced from the side; 제2하우징의 내주연에 끼워지되, 상기 메인댐퍼(33)의 내측에 유체가 통과할 수 있도록 다수의 관통공(51)이 형성된 다공링(50);으로 구성되는 것을 특징으로 하는 압력조절댐퍼가 형성된 체크밸브.Pressure control damper, characterized in that consisting of; a porous ring 50 is inserted into the inner circumference of the second housing, a plurality of through-holes 51 are formed to allow the fluid to pass through the inside of the main damper 33; Formed check valve. 제 1 항에 있어서,The method of claim 1, 상기한 압력조절댐퍼(41)는 유체의 압력에 의해 로드(34)를 타고 슬라이딩되며, 상기 로드(34)의 끝단에 압력조절댐퍼(41)의 이탈을 방지하기 위한 고정핀(43)이 형성된 것을 특징으로 하는 압력조절댐퍼가 형성된 체크밸브.The pressure regulating damper 41 is slid through the rod 34 by the pressure of the fluid, and a fixing pin 43 is formed at the end of the rod 34 to prevent the pressure regulating damper 41 from being separated. Check valve formed with a pressure control damper, characterized in that.
KR1020000062093A 2000-10-21 2000-10-21 Check valve having pressure control valve KR20020031560A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200126571A (en) * 2019-04-30 2020-11-09 (주)세미즈 Valve apparatus and control method for gas flow
KR20210000973A (en) * 2019-06-26 2021-01-06 우성알앤디 주식회사 Check valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200126571A (en) * 2019-04-30 2020-11-09 (주)세미즈 Valve apparatus and control method for gas flow
KR20210000973A (en) * 2019-06-26 2021-01-06 우성알앤디 주식회사 Check valve

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