KR930010304B1 - Relief valve for power-driven sprayer - Google Patents

Relief valve for power-driven sprayer Download PDF

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Publication number
KR930010304B1
KR930010304B1 KR1019900008182A KR900008182A KR930010304B1 KR 930010304 B1 KR930010304 B1 KR 930010304B1 KR 1019900008182 A KR1019900008182 A KR 1019900008182A KR 900008182 A KR900008182 A KR 900008182A KR 930010304 B1 KR930010304 B1 KR 930010304B1
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South Korea
Prior art keywords
valve
valve body
piston
pressure
hole
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KR1019900008182A
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Korean (ko)
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KR920000386A (en
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겐죠오 야마모도
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야마호기켕 가부시기가이샤
겐죠오 야마모도
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Priority to KR1019900008182A priority Critical patent/KR930010304B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means

Abstract

내용 없음.No content.

Description

동력분무기용 릴리이프밸브Relief Valve for Power Sprayer

제1도는 실시예의 사용상태를 표시한 측면도.1 is a side view showing a state of use of the embodiment.

제2도는 실시예의 단면도.2 is a cross-sectional view of the embodiment.

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

1 : 밸브본체 2, 3 : 접속포오토1: Valve body 2, 3: Connection auto

8 : 밸브시이트 9 : 밸브구멍8: valve seat 9: valve hole

10 : 환류포오트 11 : 저항판10: reflux pot 11: resistance plate

16 : 피스톤 17 : 밸브스템16: piston 17: valve stem

18 : 밸브체 22 : 조절스프링18: valve body 22: adjustment spring

본 발명은 동력분무기의 분무구에 장착하는 릴리이프밸브에 관한 것이다.The present invention relates to a relief valve mounted to the spray port of the power sprayer.

종래부터 동력분무기를 사용해서 세정액, 농약등을 분무할 경우, 적당한 길이의 호오스의 일단부를 동력분무기에 접속하고, 그 호오스의 타단부에 분무관을 접속해서 분무하는 것이 행하여지고 있다. 이와같은 분무작업중 분무관의 손잡이의 콕을 조작해서 분무를 정지하면, 동력분무기의 압력이 호오스에 작용하기 때문에, 호오스는 그 압력에 견딜 수 있는 것이 사용된다.Conventionally, when spraying washing | cleaning liquid, pesticides, etc. using a power sprayer, spraying is carried out by connecting one end of the hose of a suitable length to a power sprayer, and connecting a spray tube to the other end of the hose. When the spraying is stopped by operating the cock of the handle of the spray tube during the spraying operation, the pressure of the power sprayer acts on the hose, so that the hose can withstand the pressure.

그러나, 고압분무를 행하는 경우에, 사용되는 내압호오스는, 중량이 크기 때문에 운반에 지장을 초개하고, 분무작업에 원활성을 결하게 된다.However, in the case of performing high pressure spraying, the pressure resistant hose used has a large weight, which causes trouble in transportation and results in poor spraying.

그래서 본 발명은 동력분무기와 호오스 사이에 릴리이프밸브를 설치하므로서 분무를 정지하였을 때에 고압이 걸리지 않도록 해서 호오스의 경량화를 도모하는 것을 기술적 과제로 한다.Therefore, the present invention aims to reduce the pressure of the hose by providing a relief valve between the power sprayer and the hose so that high pressure is not applied when the spraying is stopped.

상기 과제를 해결하기 위하여 본 발명은 원통형의 밸브본체의 주벽에 1쌍의 접속포오트를 형성하고, 그 접속포오트보다도 밸브본체의 후단방향으로 치우쳐서 밸브본체의 내부에 피스톤을 슬라이드 자재로 삽입하고, 피스톤선단부에 밸브스템을 형성하는 동시에, 그 밸브스템선단부에 밸브본체의 선단부에 형성한 밸브구멍에 대향하는 밸브체를 배설하고, 피스톤 후단부에 밸브폐쇄방향으로 탄성력을 부여하고, 피스톤과 밸브체의 밸브개방방향의 종합수압면적을 밸브체의 밸브폐쇄방향의 수압면적보다도 크게 형성하고, 상기 밸브구멍에 접속되는 통로에 밸브구멍에 접근해서 저항판을 설치한 구성을 채용한 것이다.In order to solve the above problems, the present invention forms a pair of connection ports on the main wall of the cylindrical valve body, and the piston is inserted into the inside of the valve body as a slide material by being biased toward the rear end of the valve body rather than the connection port. In addition, a valve stem is formed at the piston end, and at the valve stem end, a valve body facing the valve hole formed at the tip of the valve body is disposed. The overall hydraulic pressure area in the valve opening direction of the sieve is formed to be larger than the hydraulic pressure area in the valve closing direction of the valve body, and a resistance plate is provided by accessing the valve hole to the passage connected to the valve hole.

분무관으로부터 압력수를 분무하고 있는 상태에 있어서, 밸브체는 피스톤에 눌려 밸브구멍을 폐색한다. 분무관의 분무를 정지하면 밸브본체내의 압력이 상승하므로 피스톤과 밸브체에 작용하는 밸브개방방향의 압력이 피스톤에 작용하는 탄성력에 이겨서 밸브체가 후퇴하고, 밸브가 열린다. 밸브가 열린 상태로 되면, 압력수는 밸브구멍으로부터 유출하여 통로내의 저항판을 통과하여 동력분무기 본체로 환류한다. 이때, 밸브본체내의 압력이 저한하나, 밸브구멍선단부의 저항판의 작용에 의해 압력은 일정이하로 저하되는 일이 없이, 밸브를 개방상태로 유지한다.In the state of spraying the pressure water from the spray pipe, the valve body is pressed by the piston to close the valve hole. When the spraying of the spray tube is stopped, the pressure in the valve body rises, so that the pressure in the valve opening direction acting on the piston and the valve body overcomes the elastic force acting on the piston, and the valve body retreats and the valve opens. When the valve is opened, the pressure water flows out of the valve hole, passes through the resistance plate in the passage, and returns to the power atomizer body. At this time, the pressure in the valve body is low, but the pressure is kept below the fixed state by the action of the resistance plate of the valve hole front end.

재차, 분무관을 개방하면 밸브본체내의 압력이 한층더 저하하기 때문에, 밸브폐쇄상태로 된다.When the spray tube is opened again, the pressure in the valve body further decreases, and the valve is closed.

본 발명의 실시예를 도면에 의거해서 설명한다.An embodiment of the present invention will be described with reference to the drawings.

제1도 및 제2도에 표시된 바와같이 원통형의 밸브본체(1)의 주벽에 1쌍의 접속포오트(2)(3)를 형성한다. 한쪽의 접속포오트(2)는 파이프(4)를 개재해서 동력분무기본체(5)에 접속되고, 다른쪽의 접속포오트(3)는 호오스(6)를 개재해서 분무관(7)에 접속된다.As shown in FIG. 1 and FIG. 2, a pair of connection ports 2 and 3 are formed in the circumferential wall of the cylindrical valve body 1. One connection port 2 is connected to the power spraying base 5 via a pipe 4, and the other connection port 3 is connected to the spray pipe 7 via a hose 6. do.

밸브본체(1)의 선단부에 밸브시이트(8)가 형성되고, 이 밸브시이트(8) 중앙에 밸브구멍(9)이 형성된다. 또, 밸브본체(1) 선단부에 외주에 상기 밸브시이트(8)을 감싸넣고 환류포오트(10)가 나사결합된다. 이 환류포오트(10)에 유니온너트(14)를 나사결합하고, 저항판(11)를 개재해서 이음관(13)을 유니온너트(14)에 의해 꽉죈다. 이움관(13)에는 환류파이프(12)가 접속된다. 환류파이프(12)는 동력분무기본체(5)의 환류구(23)에 접속된다. 저항판(11) 중앙에는 관통구멍(15)이 형성되어 있다.A valve seat 8 is formed at the front end of the valve body 1, and a valve hole 9 is formed in the center of the valve seat 8. In addition, the valve seat 8 is wrapped around the periphery of the valve body 1, and the reflux port 10 is screwed. The union nut 14 is screwed to the reflux port 10, and the joint pipe 13 is tightly sealed by the union nut 14 via the resistance plate 11. The reflux pipe 12 is connected to the conduit 13. The reflux pipe 12 is connected to the reflux port 23 of the power spraying base 5. The through hole 15 is formed in the center of the resistance plate 11.

상기 접속포오트(2)(3) 보다도 밸브체(1)의 후단부방향으로 치우쳐서 밸브본체(1)의 내부를 슬라이드하는 피스톤(16)이 배설된다. 이 피스톤(16)의 선단부에 밸브스템(17)을 형성하고, 이 밸브스템(17) 선단부에 상기 밸브구멍(9)에 대향하도록 밸브체(18)을 장착한다.The piston 16 which slides the inside of the valve main body 1 to the rear end direction of the valve body 1 rather than the said connection port 2 and 3 is arrange | positioned. The valve stem 17 is formed in the front end of this piston 16, and the valve body 18 is attached to the front end of this valve stem 17 so that the said valve hole 9 may be opposed.

상기 밸브본체(1) 후단부에 캡(19)이 나사결합되고, 이 캡(19) 중앙에 조절용나사봉(20)이 끼워 넣어진다. 상기 나사봉(20)의 선단부에 압압판(21)을 배설하고, 피스톤(16)과 압압판(21)과의 사이에 조절스프링(22)을 개재시킨다.The cap 19 is screwed into the rear end of the valve body 1, and the adjusting screw rod 20 is fitted in the center of the cap 19. The pressure plate 21 is disposed at the distal end of the screw rod 20, and the adjustment spring 22 is interposed between the piston 16 and the pressure plate 21.

또, 피스톤(16)과 밸브체(18)의 밸브개방방향의 종합수압면적, 즉 피스톤(16)의 전단면의 면적과, 밸브본체(1)내의 밸브체(18)의 유효면적과의 합을 밸브체(18)의 밸브폐쇄방향의 수압면적, 즉 밸브체(18) 후단면의 면적보다도 크게 형성해 둔다.In addition, the sum of the total pressure area of the piston 16 and the valve body 18 in the valve opening direction, that is, the area of the front end surface of the piston 16 and the effective area of the valve body 18 in the valve body 1. Is formed larger than the pressure-receiving area of the valve body 18 in the valve closing direction, that is, the area of the rear end surface of the valve body 18.

실시예의 동력분무기용 릴리이프밸브는, 상기한 바와같이 구성되며, 다음에 그 작용을 설명한다.The relief valve for a power sprayer of the embodiment is configured as described above, and its operation will be described next.

분무관(7)으로부터 압력수를 분무하고 있는 상태에 있어서, 조절용 나사봉(20)으로 조절스프링(22)을 조절하여 피스톤(16)에 전진방향의 힘을 부여하고, 밸브체(18)에 의해 밸브구멍(9)을 폐색한다. 분무관(7)의 분무를 정지하면, 밸브본체(1)내의 압력이 상승하므로 피스톤(16)과 밸브체(18)에 작용하는 밸브개방방향의 압력이 피스톤(16)에 작용하는 조절스프링(22)의 탄성력에 이겨서 밸브체(18)가 후퇴하여, 밸브구멍(9)이 열린다. 밸브구멍(9)이 열리면, 압력수는 밸브구멍으로부터 유출하여 환류포오트(10) 선단부의 저항판(11)을 통과하여 이움관(13) 및 환류파이프(12)를 통과해서 동력분무기본체(5)로 환류한다. 또, 환류파이프(12)를 약액탱크(24)에 접속해두고, 상기 압력수를 약액탱크(24)로 함류해도 된다. 이때 밸브본체(1) 내의 압력이 저하하나, 저항판(11)의 작용에 의해 압력은 일정이하로 내려가는 일이 없어, 밸브구멍(9)을 개방상태로 유지한다.In the state of spraying the pressure water from the spray pipe 7, the adjustment spring 22 is adjusted with the adjusting screw rod 20 to impart a force in the forward direction to the piston 16, and to the valve body 18. The valve hole 9 is closed by this. When the spraying of the spray tube 7 is stopped, the pressure in the valve body 1 rises, so that the pressure in the valve opening direction acting on the piston 16 and the valve body 18 acts on the piston 16 ( In response to the elastic force of 22, the valve body 18 retreats, and the valve hole 9 is opened. When the valve hole 9 is opened, the pressure water flows out of the valve hole, passes through the resistance plate 11 at the tip of the reflux port 10, passes through the funnel tube 13 and the reflux pipe 12, and the power spraying base body ( Reflux to 5). The reflux pipe 12 may be connected to the chemical liquid tank 24 to contain the pressure water in the chemical liquid tank 24. At this time, the pressure in the valve body 1 decreases, but the pressure does not drop below a certain level due to the action of the resistance plate 11, and the valve hole 9 is kept open.

재차, 분무관(7)을 개방하면 밸브본체(1)내의 압력이 한층 더 저하하기 때문에 밸브구멍(9)를 폐색시킨다.When the spray pipe 7 is opened again, the pressure in the valve body 1 is further lowered, so that the valve hole 9 is closed.

저항판(11)은 밸브의 작용을 안정시키는 작용이 있다. 이 저항판(11)을 설치하지 않으면 분무관(7)을 개방상태로부터 폐색상태로 이행할때에 밸브본체(1)내의 압력상승→밸브구멍(9) 개방→밸브본체(1)내의 압력하강→밸브구멍(9) 폐색→밸브본체(1)내의 압력상승이라고 하는 동작을 반복하여 작동이 안정되지 않는다.The resistance plate 11 has an effect of stabilizing the operation of the valve. If this resistance plate 11 is not provided, the pressure rise in the valve body 1 → the valve hole 9 opening → the pressure drop in the valve body 1 when the spray tube 7 is shifted from the open state to the closed state. → Closure of the valve hole 9 → The operation of increasing the pressure in the valve body 1 is repeated and operation is not stable.

본 발명에 의하면 이상과 같이 동력분무기본체에 릴리이프밸브를 설치한 구성에 의해 분무를 정지하였을 때에 호오스내가 고압으로 되기 전에 밸브를 개방하여 압력을 도망가게 하므로, 고압분무를 행하는 경우라도, 저압용의 호오스를 사용할 수 있다. 이 때문에 호오스가 경량으로 되어 운반 및 작업이 편리하게 된다.According to the present invention, when the spraying is stopped by the configuration in which the relief sprayer is installed on the power spraying body as described above, the pressure is released by opening the valve before the pressure inside the hose becomes high, so even when high pressure spraying is performed, You can use a hose of. This makes the hose lighter, which makes it easier to transport and work.

Claims (1)

원통형의 밸브본체(1)의 주벽에 1쌍의 접속포오트(2), (3)를 형성하고, 이 접속포오트(2), (3)보다도 밸브본체(1)의 후단부방향으로 치우쳐서 밸브본체(1)의 내부에 피스톤(16)을 슬라이드 자재하게 삽입하고, 피스톤선단부에 밸브스템(17)을 형성하는 동시에, 그 밸브스템(17) 선단부에 밸브본체(1)의 선단부에 형성하는 밸브구멍(9)에 대향하는 밸브체(18)를 배설하고, 피스톤(16) 후단부에 밸브폐쇄 방향으로 탄성력을 부여하고 피스톤(16)과 밸브체(18)의 개방방향의 종합수압면적을 밸브체의 폐쇄방향의 수압면적보다도 크게 형성하고, 상기 밸브구멍(9)에 접속되는 통로에 밸브구멍(9)에 접근해서 중앙에 관통구멍(15)이 형성되어 있어 액체의 통과를 제한하는 부재로서의 저항판(11)을 설치한 동력분무기용 릴리이프밸브.A pair of connection ports 2 and 3 is formed on the circumferential wall of the cylindrical valve body 1, and is biased toward the rear end of the valve body 1 than the connection ports 2 and 3, respectively. The piston 16 is slidably inserted into the valve body 1 to form the valve stem 17 at the piston tip, and at the tip of the valve body 1 at the tip of the valve stem 17. The valve body 18 facing the valve hole 9 is disposed, an elastic force is applied to the rear end of the piston 16 in the valve closing direction, and the total hydraulic pressure area in the opening direction of the piston 16 and the valve body 18 is adjusted. A member which is formed larger than the hydraulic pressure area in the closing direction of the valve body, and has a through hole 15 formed in the center by accessing the valve hole 9 in a passage connected to the valve hole 9, thereby restricting the passage of liquid. Relief valve for power sprayer provided with a resistance plate (11).
KR1019900008182A 1990-06-04 1990-06-04 Relief valve for power-driven sprayer KR930010304B1 (en)

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KR1019900008182A KR930010304B1 (en) 1990-06-04 1990-06-04 Relief valve for power-driven sprayer

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Application Number Priority Date Filing Date Title
KR1019900008182A KR930010304B1 (en) 1990-06-04 1990-06-04 Relief valve for power-driven sprayer

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KR920000386A KR920000386A (en) 1992-01-29
KR930010304B1 true KR930010304B1 (en) 1993-10-16

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