KR200206167Y1 - Metering valve with liquid discharge amount detection and control device - Google Patents

Metering valve with liquid discharge amount detection and control device Download PDF

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Publication number
KR200206167Y1
KR200206167Y1 KR2019980009412U KR19980009412U KR200206167Y1 KR 200206167 Y1 KR200206167 Y1 KR 200206167Y1 KR 2019980009412 U KR2019980009412 U KR 2019980009412U KR 19980009412 U KR19980009412 U KR 19980009412U KR 200206167 Y1 KR200206167 Y1 KR 200206167Y1
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South Korea
Prior art keywords
liquid
piston
hole
discharge amount
spool
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KR2019980009412U
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Korean (ko)
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KR19990042136U (en
Inventor
장동원
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장동원
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Priority to KR2019980009412U priority Critical patent/KR200206167Y1/en
Publication of KR19990042136U publication Critical patent/KR19990042136U/en
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Publication of KR200206167Y1 publication Critical patent/KR200206167Y1/en

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Classifications

    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • 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
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F16K37/0016—Mechanical means having a graduated scale

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

본 고안은 필요한 정확한 량의 액체나 기체를 토출공급 시킬 수 있도록 한 정량밸브의 개량에 관한 것으로서 특히 스풀의 승강작동에 의해 일정량의 액체만 토출토록 함과 동시에 액체의 흘러내림을 방지하며, 또한 액체의 토출여부 및 량을 신속용이하게 조절할 수 있도록 한 것이다.The present invention relates to the improvement of a fixed-quantity valve which can discharge and supply the required amount of liquid or gas, and in particular, only a certain amount of liquid is discharged by the lifting operation of the spool, and the liquid is prevented from flowing down. It is to be able to quickly and easily control the discharge amount and amount of.

상기 목적을 달성하기 위하여 본 고안은 밸브몸체(4)의 내면 상하에 계량실(50)과 피스톤작동실(62)을 구성하되, 피스톤작동실(62) 상에는 스풀(70)이 체결고정된 에이피스톤(66)을 승강가능케 결합하고, 계량실(50)상에는 관통공(16)(24)과 통공(14)(22)이 형성된 액체피스톤(8)과 토출량조절구(26)를 구성하고, 상기 토출량조절구(26)는 조정볼트(44)에 의해 승강조절가능케 하고, 액체피스톤(8) 하부 일측에는 감지구(82)가 설치된 감지봉(80)을 체결고정하여서 된 것이다.In order to achieve the above object, the present invention constitutes the metering chamber 50 and the piston operating chamber 62 above and below the inner surface of the valve body 4, and the piston spool 70 is fastened and fixed on the piston operating chamber 62. The liquid piston 8 and the discharge amount adjusting means 26 formed with the through holes 16, 24 and the through holes 14, 22 formed on the metering chamber 50, and the discharge amount The adjusting device 26 is adjustable by the adjusting bolt 44, and the lower side of the liquid piston 8 is to fasten and secure the sensing rod 80 is provided with a sensing port 82.

Description

액체의 토출량 감지 및 조절장치가 부설된 정량밸브Metering valve with liquid discharge amount detection and control device

본 고안은 필요한 정확한 량의 액체나 기체를 토출공급시킬 수 있도록 한 정량밸브의 개량에 관한 것으로서, 특히 토출되는 액체나 기체가 정량밸브의 축방향으로 토출되게 함과 동시에, 토출되는 액체나 기체량의 조절이 가능케 하고, 또한 필요한 량의 액체나 기체가 토출되었는 지에 대한 감지기능을 부설하여 필요한 장소에 필요한 량의 액체(약품, 구리스, 물 등)나 기체(개스 등)를 정확히 공급되었는지를 확인할 수 있도록 한 것이다.The present invention relates to an improvement of a fixed-quantity valve capable of discharging and supplying the required amount of liquid or gas, and in particular, the discharged liquid or gas is discharged in the axial direction of the fixed-quantity valve and the amount of liquid or gas discharged. It is possible to control the amount of liquid and gas, and to establish whether the required amount of liquid or gas has been discharged to check whether the required amount of liquid (chemical, grease, water, etc.) or gas (gas, etc.) is supplied correctly. I would have to.

일반적으로 액체를 필요로 하는 정확한 량을 토출하기 위한 밸브는 대부분 토출되는 액체를 저울로 개량하여 측정하는 방식이기 때문에 계량의 정확성이 떨어지고, 또한 개량에 많은 시간이 소요될 뿐 아니라 토출시 밸브내에 잔류하는 압력 때문에 밸브의 동작정지시에도 액체가 흘러내리는 폐단이 있었으며, 상기에서와 같이 액체의 흘러내림을 방지하기 위하여는 별도의 장치를 설치하여야 하므로 그에 따른 장치가 복잡해지는 폐단이 있었으며, 또한 밸브를 통하여 필요한 량의 액체나 기체가 공급되었는 지의 확인이 되지 않기 때문에 필요한 위치에 액체나 기체를 공급하지 못함에 따른 문제가 발생되는 등의 폐단이 있는 것이었다.In general, since the valve for discharging the exact amount of liquid is required to improve the amount of liquid to be discharged by a scale, the accuracy of weighing is inferior, and it takes much time to improve and also remains in the valve during discharge. Due to the pressure, there was a closed end where the liquid flowed down even when the valve was stopped.A separate device must be installed to prevent the liquid from flowing down as described above. Since there was no confirmation that the required amount of liquid or gas was supplied, there was a problem such as the problem of not supplying the liquid or gas in the required position.

본 고안은 이러한 종래의 제반 문제점을 시정하고자 정량밸브를 통하여 토출되는 액체의 공급이 밸브 몸체의 측부로 이루어지도록 함과 동시에, 토출되는 액체의 량 조절이 신속용이하게 이루어지도록 하며, 또한 정량의 액체가 토출공급되었는지의 확인이 감지기를 통하여 이루어질수 있도록 하며, 액체의 토출작동이 밸브내에 끼워진 스풀의 승강작동에 의해 이루어 질수 있도록 한 것이다.The present invention allows the supply of the liquid discharged through the metering valve to the side of the valve body in order to correct the problems of the related art, and at the same time, the amount of liquid to be discharged can be easily controlled, and also the amount of liquid It is to make sure that the discharge is supplied through the sensor, and the discharge operation of the liquid can be achieved by the lifting operation of the spool inserted in the valve.

상기 목적을 달성하기 위하여 본 고안은 밸브몸체 상부에 토출량조절구를 끼워 설치하므로서 계량실이 형성되게 하고, 계량실상에는 액체피스톤을 끼워 승강케 구성하고, 계량실 측부에 액체주입구와 액체유출구가 형성되게 하며, 밸브몸체 상부에는 계량표시봉이 탄력설치된 상부캡을 나사결합하고, 상부캡상에는 조정볼트를 나사결합하여 밸브 몸체에 끼워진 토출량조절구의 위치가 조정되게 하여 계량실의 체적이 조정되게 하며, 밸브 몸체 하단에는 하부캡을 나사결합하여 피스톤작동실이 구성되게 하고, 상기 피스톤작동실 상에는 스풀이 체결고정된 에어피스톤을 끼워 결합하고, 액체피스톤 하단에는 감지봉을 결합고정하여 감지봉의 단부가 외부로 돌출되게 하되, 외부로 돌출된 감지봉 상에는 감지구를 설치하여서 된 것이다.In order to achieve the above object of the present invention, the metering chamber is formed by inserting the discharge amount adjusting port on the upper part of the valve body, and the liquid piston is mounted on the metering chamber to raise and lower the liquid inlet and the liquid outlet port on the side of the metering chamber. The upper part of the valve body is screwed to the upper cap with the metering rod elastically installed on the upper part of the valve body, and the adjusting bolt is screwed onto the upper cap to adjust the position of the discharge amount adjusting hole fitted to the valve body so that the volume of the metering chamber is adjusted. The lower cap is screwed to form a piston operating chamber, and the piston operating chamber is fitted with an air piston in which the spool is fastened and coupled, and a sensing rod is coupled to the lower end of the liquid piston so that the end of the sensing rod protrudes to the outside. On the sensing rod protruding to the outside, it is to install a sensing port.

제1도는 본 고안 밸브의 단면구성도.1 is a cross-sectional view of the valve of the present invention.

제2도∼제5도는 본 고안 밸브의 작동상태를 도시한 단면구성도.2 to 5 are cross-sectional views showing the operating state of the valve of the present invention.

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

2 : 정량밸브 4 : 밸브몸체2: Metering valve 4: Valve body

6 : 구획단턱 8 : 액체피스톤6: compartment step 8: liquid piston

10 : 머리부 12 : 몸체10: head 12: body

14 : 통공 16 : 관통공14: through hole 16: through hole

18,20 : 패킹 22 : 통공18,20 Packing 22: Through Hole

24 : 관통공 26 : 토출량조절구24: through hole 26: discharge amount adjustment

28 : 링홀더 30 : 고정볼트28: ring holder 30: fixing bolt

32 : 패킹 34 : 나선부32: packing 34: helix

36 : 상부캡 38 : 스프링36: upper cap 38: spring

40 : 계량표시봉 42 : 돌출부40: measuring rod 42: protrusion

44 : 조정볼트 46 : 잠금너트44: adjusting bolt 46: locking nut

50 : 계량실 52 : 액체유출구50: metering chamber 52: liquid outlet

54 : 액체주입구 56 : 나선부54 liquid inlet 56 spiral part

58 : 상승주입구 60 : 하부캡58: rising inlet 60: lower cap

62 : 피스톤작동실 64 : 하강주입구62: piston operating chamber 64: lowering inlet

66 : 에어피스톤 68 : 너트66: air piston 68: nut

70 : 스풀 72 : 머리부70: spool 72: head

74 : 스플 76 : 몸체74: split 76: body

80 : 감지봉 82 : 감지구80: detection rod 82: detection port

84 : 감지구홀더 86 : 고정너트84: detection hole holder 86: fixing nut

이하 본 고안의 실시예를 첨부도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 고안 정량밸브(2)의 단면상태도로서, 밸브 몸체(4)내에 구획단턱(6)이 형성된 공간부를 형성하되, 밸브몸체(4)의 윗쪽 공간부 상에 머리부(10)와 몸체(12)로 구성된 액체피스톤(8)을 승강가능케 끼워 결합하고, 상기 액체피스톤(8)상에는 관통공(16)과 통공(14)이 형성되게 하고, 외면과 내면에는 밀폐용 패킹(18)(20)이 끼워져 있다.1 is a cross-sectional state diagram of the metering valve 2 of the present invention, wherein the valve body 4 forms a space in which the partition step 6 is formed, and the head 10 and the upper space of the valve body 4 are formed. A liquid piston 8 composed of a body 12 is fitted to be lifted and coupled, and a through hole 16 and a through hole 14 are formed on the liquid piston 8, and a sealing packing 18 is formed on an outer surface and an inner surface thereof. (20) is fitted.

상기 액체피스톤(8) 상에는 통공(22)과 관통공(24)이 형성된 토출량조절구(26)를 끼워 결합하되, 토출량조절구(26)의 통공(22) 입구부에는 링홀더(28)를 끼운 다음, 고정볼트(30)로 체결고정되게 하고, 외면에는 밀폐용 패킹(32)이 결합되어 있다.The liquid piston 8 is fitted with the through-hole 22 and the through-hole 24, the discharge amount adjusting hole 26 is coupled to each other, the ring holder 28 in the inlet portion of the through-hole 22 of the discharge amount adjusting opening 26 Then, the fixing bolt 30 is fastened and fixed, the outer packing 32 is combined.

밸브 몸체(4) 상부에 구성된 나선부(34)에는 상부캡(36)을 나사결합하되, 상부캡(36) 일측에는 표시눈금이 형성된 계량표시봉(40)을 끼운 다음, 스프링(38)으로 탄력설치되게 하고, 중앙 돌출부(42)에는 조정볼트(44)를 끼워 조정볼트(44)의 하단부가 토출량조절구(26)의 상면과 접하게 하고, 조정볼트(44)는 잠금너트(46)를 이용하여 체결고정되게 한다.Screw the upper cap 36 to the spiral portion 34 formed on the valve body 4, the one side of the upper cap 36 is fitted with a metering rod (40) formed with a marking scale, and then with a spring 38 Resilient installation, the adjustment bolt 44 is fitted to the central protrusion 42 so that the lower end of the adjustment bolt 44 is in contact with the upper surface of the discharge amount adjusting opening 26, the adjustment bolt 44 is the lock nut 46 To lock it in place.

이때 계량실(50) 윗쪽과 아랫쪽에는 토출량조절구(26)의 관통공(24)과 통하는 액체유출구(52)와, 액체피스톤(8)의 관통공(16)과 통하는 액체주입구(54)를 각각 형성한다.At this time, the liquid outlet port 52 communicating with the through hole 24 of the discharge amount adjusting opening 26 and the liquid injection port 54 communicating with the through hole 16 of the liquid piston 8 are respectively located above and below the metering chamber 50. Form.

밸브 몸체(4) 하단에 구성된 나선부(56)에는 상승주입구(58)가 형성된 하부캡(60)을 나사결합하므로서 피스톤작동실(62)이 형성되게 하고, 피스톤작동실(62) 상부 일측에는 하강주입구(64)가 구성되어 있다.The spiral portion 56 formed at the lower end of the valve body 4 is screwed to the lower cap 60 having the rising inlet 58 to form a piston operating chamber 62, and at one side of the upper portion of the piston operating chamber 62. The lower injection port 64 is configured.

상기 피스톤작동실(62)상에는 에어피스톤(66)을 승강가능케 끼워 결합하되 에어피스톤(66) 상에는 액체피스톤(8)과 토출량조절구(26)의 링홀더(28)를 관통하는 스풀(70)을 너트(68)로 체결고정하고, 상기 스풀(70)은 욋쪽으로부터 머리부(72)와 연결봉(74) 및 몸체(76)로 구분구성하되, 연결봉(74)은 머리부(72)와 몸체(76)보다 가늘게 구성되어 있다.On the piston operating chamber 62, the air piston 66 is fitted to be lifted and coupled, and on the air piston 66, the spool 70 penetrates through the ring holder 28 of the liquid piston 8 and the discharge amount adjusting opening 26. Fastening and fastening with a nut (68), the spool (70) is divided into the head 72, the connecting rod 74 and the body 76 from the outer side, but the connecting rod 74 and the head 72 It is thinner than the body 76.

액체피스톤(8) 저면 일측에는 감지봉(80)을 체결고정하되, 감지봉(80)의 단부는 하부캡(60)을 관통하여 외부로 돌출되게 하고, 외부로 돌출된 감지봉(80)상에는 감지구(82)가 설치된 감지구홀더(82)를 끼운 다음 고정너트(86)로 체결고정되게 하여서 된 것이다.On the bottom surface of the liquid piston 8, the sensing rod 80 is fastened and fixed, and the end of the sensing rod 80 passes through the lower cap 60 to protrude to the outside, and on the sensing rod 80 protruding to the outside. Insert the sensing sphere holder 82 is installed sensing sphere 82 is to be fastened and fixed with a fixing nut (86).

미설명부호 (90)은 액체, (92)는 패킹 이다.Reference numeral 90 is a liquid, 92 is a packing.

이와 같이 구성된 본 고안의 정량밸브(4)는 다음과 같이 작동하게 된다.The metering valve 4 of the present invention configured as described above is operated as follows.

작동되는 순서는 제2도∼제5도에서와 같으며, 제2도는 정량밸브(4)에 구성된 계량실(50)내에 액체(90)가 주입된 상태이고, 제3도는 스풀(70)이 상승하여 토출량 조절구(26)내에 결합된 링홀더(28)가 개방된 상태이며, 제4도는 액체(90)의 이송압력에 의해 액체피스톤(8)이 상승하여 계량실(50)내에 충전된 액체(90)가 액체유출구(52)로 토출되는 상태이고, 제5도는 액체(90)의 토출이 완료된 상태에서 스풀(70)이 하강하여 액체유출구(52)의 입구부내에 잔류하는 액체가 스풀(70)의 머리부(72)가 하강한 용적만큼 역으로 흡입된 상태를 나타낸 작동상태도로서, 각 도면에 따라 상세히 설명하면 다음과 같다.The operating sequence is the same as in FIGS. 2 to 5, in which FIG. 2 is a state in which the liquid 90 is injected into the metering chamber 50 configured in the metering valve 4, and FIG. The ring holder 28 coupled to the discharge amount adjusting opening 26 is opened. In FIG. 4, the liquid piston 8 rises due to the transfer pressure of the liquid 90, and the liquid filled in the metering chamber 50 ( 90 is discharged to the liquid outlet 52, and in FIG. 5, the spool 70 is lowered when the discharge of the liquid 90 is completed, and the liquid remaining in the inlet of the liquid outlet 52 is spool 70. An operation state diagram showing a state in which the head 72 of the back side is suctioned backward by the lowered volume, which will be described in detail with reference to the accompanying drawings.

제2도는 정량밸브(4)내로 초기의 액체(90)가 계량실(50)내로 충전되는 상태도로서, 액체주입구(54)를 통하여 액체(90)가 일정한 압력으로 압송되어 오면 액체는 액체피스톤(8)에 구성된 관통공(16)과 통공(14)을 통하여 계량실(50)내로 압송된다.FIG. 2 is a state diagram in which the initial liquid 90 is filled into the metering chamber 50 into the metering valve 4. When the liquid 90 is pushed at a constant pressure through the liquid inlet 54, the liquid becomes a liquid piston 8. It is pumped into the metering chamber 50 through the through hole 16 and the through hole 14 formed in the).

상기에서와 같이 계량실(50)내에 액체의 압송이 완료되면 하부캡(60)에 구성된 상승주입구(58)를 통하여 공기를 주입하게 되면 공기압에 의해 에어피스톤(66)이 상승하고 따라서 스풀(70)이 상승하여 제3도에서와 같이 위치하게 된다.As described above, when the pumping of the liquid in the metering chamber 50 is completed, when the air is injected through the rising inlet 58 configured in the lower cap 60, the air piston 66 is raised by the air pressure, and thus the spool 70 is formed. This rises and is located as shown in FIG.

즉 토출량조절구(26)내에 끼워진 링홀더(28)상에 스폴(70)의 연결부(74) 부분이 위치하게 되므로 통공(22)이 개방되어 계량실(50)내에 충전된 액체는 통공(22)을 통하여 토출량조절구(26)내로 유입될 수 있게 되며, 반대로 액체피스톤(8)에 형성된 통공(14)은 스풀(70)의 몸체(76)에 의해 폐쇄된다.That is, since the connection portion 74 of the spool 70 is positioned on the ring holder 28 fitted in the discharge amount adjusting hole 26, the through hole 22 is opened to fill the liquid in the metering chamber 50 with the through hole 22. It can be introduced into the discharge amount control port 26 through, on the contrary, the through hole 14 formed in the liquid piston (8) is closed by the body 76 of the spool (70).

상기한 상태에서 액체주입구(54)내로 액체를 계속 압송하게 되면 제4도에서와 같이 액체의 이송압력에 의해 액체피스톤(8)이 상승하여 계량실(50)내에 충전된 액체를 밀어내게 되므로 액체는 통공(22)과 관통공(24) 및 액체유출구(54)를 통하여 외부로 토출된다.As the liquid continues to be pumped into the liquid inlet 54 in the above state, as shown in FIG. 4, the liquid piston 8 rises due to the transfer pressure of the liquid to push out the liquid filled in the metering chamber 50. It is discharged to the outside through the through hole 22, the through hole 24, and the liquid outlet port 54.

이때 외부로 토출되는 액체(90)의 량은 액체피스톤(8)이 상승하여 토출량조절구(26)의 저면에 접하게 되는 계량실(50)의 용적부피 만큼이다.At this time, the amount of the liquid 90 discharged to the outside is as much as the volume volume of the metering chamber 50 in which the liquid piston 8 is raised to be in contact with the bottom surface of the discharge amount adjusting opening 26.

이때 액체피스톤(8) 하단에 체결된 감지봉(80)도 액체피스톤(8)의 상승에 따라 상승하게 되어 감지구홀더(84)에 구성된 감지구(82)가 하부캡(60)의 저면에 근접하게 되므로 근접센서로 구성된 감지구(82)가 작동하여 액체(90)의 토출을 감지하게 된다.At this time, the sensing rod 80 fastened to the lower end of the liquid piston 8 also rises as the liquid piston 8 rises, so that the sensing hole 82 formed in the sensing hole holder 84 is located on the bottom surface of the lower cap 60. Since it is close to the sensing port 82 consisting of a proximity sensor is activated to detect the discharge of the liquid (90).

상기에서와 같이 액체의 토출이 완료되면 피스톤작동실(62)에 구성된 하강주입구(64)를 통하여 공기를 주입시키게 되면 공기압에 의해 에어피스톤(66)이 하강하게 되고 따라서 이와 연결된 스풀(70)도 하강하게 된다.When the discharge of the liquid is completed as described above, when the air is injected through the lower injection port 64 configured in the piston operating chamber 62, the air piston 66 is lowered by the air pressure, and thus the spool 70 connected thereto is also Will descend.

스풀(70)이 하강하면서 스풀(70)의 머리부(72)가 토출량조절구(26) 내에 끼워진 링홀더(28)에 접하게 되면 통공(22) 밀폐되고, 이러한 상태에서 스풀(70)이 계속 하강하여 제5도에서와 같이 위치하게 되면 토출량조절구(26)의 통공(22) 내에서 머리부(72)가 하강한 체적만큼의 액체가 액체유출구(52)로부터 정량밸브(2) 내측으로 흡입되므로 토출구 단부로부터 액체의 흘러내림은 방지되며, 동시에 액체피스톤(8)에 구성된 통공(14)가 관통공(16)은 스풀(70)의 연결봉(74)에 의해 개방된다.When the spool 70 is lowered and the head 72 of the spool 70 comes into contact with the ring holder 28 fitted in the discharge amount adjusting opening 26, the through hole 22 is sealed, and in this state, the spool 70 continues. When lowered and positioned as shown in FIG. 5, the liquid corresponding to the volume of the head 72 lowered in the through hole 22 of the discharge amount adjusting opening 26 is discharged from the liquid outlet 52 into the metering valve 2. Since the liquid is sucked, the flow of liquid from the discharge end is prevented, and at the same time, the through hole 16 formed in the liquid piston 8 is opened by the connecting rod 74 of the spool 70.

이러한 상태에서 액체주입구(54)내로 액체가 압송되면 액체의 이송압에 의해 액체는 액체피스톤(8)에 형성된 관통공(16)과 통공(14)을 통하여 계량실(50)내로 충전되고, 충전압력에 의해 액체피스톤(8)은 하강하여 계량실(50)내에는 다시 제3도에서와 같이 액체가 충전된다.When the liquid is pumped into the liquid inlet 54 in this state, the liquid is filled into the metering chamber 50 through the through hole 16 and the through hole 14 formed in the liquid piston 8 by the conveying pressure of the liquid. As a result, the liquid piston 8 is lowered, and the liquid is filled again in the metering chamber 50 as shown in FIG.

상기와 같은 작동의 연속반복으로 일정량의 액체가 토출공급된다.In the continuous repetition of the above operation, a certain amount of liquid is discharged and supplied.

상기 토출작업중 토출되는 액체의 량을 조절하고자 할 경우에는 상부캡(36)의 돌출부(42)에 나사결합된 조정볼트(44)를 죄이거나 풀어 토출량조절구(26)의 위치를 승강시키게 되면 밸브 몸체(4) 내에 구성된 계량실(50)의 체적이 조정되므로 계량실(50)내에 충전되는 액체의 량이 조절되며, 이때 계량실(50)의 체적량은 상부캡(36) 일측에 탄력설치된 계량표시봉(40)의 눈금을 통하여 쉽게 설정, 조정할 수 있다.When the amount of liquid to be discharged during the discharge operation is to be adjusted, tightening or releasing the adjusting bolt 44 screwed to the protrusion 42 of the upper cap 36 raises the position of the discharge amount adjusting opening 26 valve Since the volume of the metering chamber 50 configured in the body 4 is adjusted, the amount of liquid filled in the metering chamber 50 is adjusted, and the volume of the metering chamber 50 is a metering rod that is elastically installed at one side of the upper cap 36. It is easy to set and adjust with the scale of 40).

따라서 본 고안은 스풀의 승강작동에 의해 액체피스톤이 승강하여 계량실 내에 충전된 일정한 량의 액체만 정확히 토출토록 함과 동시에 토출완료된 후에는 스풀의 하강에 따른 액체의 흡입현상으로 액체의 흘러내림을 방지하며, 또한 필요에 따라 액체의 토출량조절을 조정볼트로 신속용이하게 이루어지게 될뿐아니라, 액체의 토출여부가 감지구를 통하여 확인이 되므로 편리한 등의 효과가 있는 것이다.Therefore, the present invention ensures that only a certain amount of liquid filled in the weighing chamber is discharged precisely by the lifting operation of the spool, and at the same time, after the discharge is completed, the liquid is prevented from flowing down due to the suction phenomenon of the liquid due to the falling of the spool. In addition, it is possible to adjust the discharge amount of the liquid as needed quickly and easily, as well as to adjust the discharge amount of the liquid through the detection port is confirmed that there is a convenient effect.

Claims (1)

액체정량밸브를 구성함에 있어서, 밸브몸체(4)내에 구성된 구획단턱(6)이 형성된 공간부를 형성하되, 윗쪽 공간부상에 관통공(16)과 통공(14)이 형성된 액체피스톤(8)과, 관통공(24) 및 통공(22)이 형성된 토출량조절구(26)를 끼워 그 사이에 계량실(50)이 형성되게 하고, 상기 계량실(50)의 상하 측부에 액체주입구(54)와 액체유출구(52)를 구성하여 액체피스톤(8)과 토출량조절구(26)의 관통공(16)(24)과 상통하게 하고, 밸브 몸체(4) 상단에는 조절볼트(44)가 나사결합된 상부캡(36)을 나사결합하여 조절볼트(44)의 하단부가 토출량조절구(26)의 상단부와 접하게 하고, 상부캡(36) 일측에는 스프링(38)이 탄력설치된 계량표시봉(40)을 설치하고, 밸브 몸체(4) 하단에는 하부캡(60)을 나사결합하여 피스톤작동실(62)이 형성되게 하고, 상기 피스톤작동실(62) 상에는 에어피스톤(66)을 끼워 결합하되, 에어피스톤(66)상에는 스풀(70)을 결합하여, 에어피스톤(66)의 승강에 의해 스풀(70)이 승강되게 하고, 액체피스톤(8) 일측 하단에는 감지봉(80)을 체결고정하여 단부가 하부캡(60) 외부로 돌출되게 하고, 감지봉(80) 하단에는 감지구(82)가 설치된 감지구홀더(84)를 체결고정하여서 된 액체의 토출량 감지 및 조절장치가 부설된 정량밸브.In forming the liquid metering valve, a liquid piston 8 having a through hole 16 and a through hole 14 formed on the upper space portion is formed, forming a space portion in which a partition step 6 formed in the valve body 4 is formed. The metering chamber 50 is formed therebetween by inserting the discharge amount adjusting hole 26 having the through hole 24 and the through hole 22 formed therein, and the liquid inlet 54 and the liquid outlet port at upper and lower sides of the metering chamber 50. 52 to be in contact with the through-hole 16, 24 of the liquid piston (8) and the discharge amount adjustment port 26, the upper end of the valve body (4), the adjusting bolt 44 is screwed on the upper cap ( 36 is screwed so that the lower end of the adjustment bolt 44 is in contact with the upper end of the discharge amount adjusting opening 26, and one side of the upper cap 36 is provided with a metering rod 40, the spring 38 is elastically installed, The lower cap 60 is screwed into the lower end of the valve body 4 so that the piston operating chamber 62 is formed, and the air piston 66 is formed on the piston operating chamber 62. Combining, but coupled to the spool (70) on the air piston 66, the spool (70) is lifted by the lifting of the air piston 66, the sensing rod 80 on one side of the lower end of the liquid piston (8) Fasten and secure the end to the lower cap (60) outside, the lower end of the sensing rod (80) is installed in the sensing hole holder 84 is provided with a sensing hole 82 is installed to detect the discharge amount of the liquid is installed Metered valve.
KR2019980009412U 1998-05-27 1998-05-27 Metering valve with liquid discharge amount detection and control device KR200206167Y1 (en)

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