KR200369132Y1 - The opening and closing valve for protecting the pressure gauge - Google Patents
The opening and closing valve for protecting the pressure gauge Download PDFInfo
- Publication number
- KR200369132Y1 KR200369132Y1 KR20-2004-0026737U KR20040026737U KR200369132Y1 KR 200369132 Y1 KR200369132 Y1 KR 200369132Y1 KR 20040026737 U KR20040026737 U KR 20040026737U KR 200369132 Y1 KR200369132 Y1 KR 200369132Y1
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- South Korea
- Prior art keywords
- spindle
- valve
- air passage
- boss
- disk
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Classifications
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
- F16K31/602—Pivoting levers, e.g. single-sided
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
본 고안은 핸들과 연동되는 스핀들의 단부에 에어통로를 개폐할 수 있는 고무재질의 디스크를 장착함으로써 에어의 누설을 방지함은 물론이고, 상기 스핀들의 외주연에 밸브본체의 보스부와 체결되는 나사부를 형성함으로써 불필요한 부품수를 줄여 생산단가를 절감할 수 있도록 한 압력게이지 보호용 개폐밸브에 관한 것으로서,The present invention is equipped with a rubber disk to open and close the air passage at the end of the spindle interlocked with the handle to prevent the leakage of air, as well as the screw portion that is fastened to the boss of the valve body on the outer periphery of the spindle The pressure gauge protective valve for reducing the production cost by reducing the number of unnecessary parts by forming a
특히, 본 고안은 스핀들의 단부에 소정 깊이의 안내공을 형성하고, 상기 안내공에 안내축이 삽입되게 고무재질의 디스크를 설치하여 상기 디스크가 감압부의 에어통로를 개폐토록 하는 한편, 상기 스핀들의 외주연에 상기 보스부의 암나사부와 대응되는 수나사부를 형성하여 상기 스핀들의 승강에 따라 그 저부의 디스크에 의해 에어통로가 개폐되도록 하되, 상기 스핀들의 외주연에 링홈을 형성한 다음, 상기 링홈들에 에어의 누설을 방지할 수 있는 오링을 설치하여 보스부의 내주연과 밀착되게 하고, 상기 스핀들의 상단 외주연에 핸들의 걸림공과 대응되는 걸림부를 형성한 것을 특징으로 한 것이다.In particular, the present invention forms a guide hole of a predetermined depth at the end of the spindle, and installs a disk made of rubber material so that the guide shaft is inserted into the guide hole to open and close the air passage of the decompression unit, The male thread portion corresponding to the female thread portion of the boss portion is formed on the outer circumference so that the air passage is opened and closed by the disk at the bottom thereof according to the lifting and lowering of the spindle, and a ring groove is formed on the outer circumference of the spindle. O-ring to prevent the leakage of air is in close contact with the inner periphery of the boss portion, characterized in that the engaging portion corresponding to the engaging hole of the handle is formed on the outer periphery of the upper end of the spindle.
Description
본 고안은 보일러 등의 압력탱크에 장착하여 탱크내의 압력을 알 수 있도록 한 압력게이지를 강한 압력으로부터 파손되지 않도록 보호하기 위한 압력게이지 보호용 개폐밸브에 관한 것으로서, 더욱 상세하게는 에어가 누수되는 것을 방지함은 물론이고, 이의 부품수를 줄임으로써 생산단가를 최대한 절감할 수 있도록 한 압력게이지 보호용 개폐밸브에 관한 것이다.The present invention relates to a pressure gauge protection on / off valve for protecting a pressure gauge mounted on a pressure tank such as a boiler so as to know the pressure in the tank from being damaged from strong pressure, and more particularly to prevent air leakage. Of course, the present invention relates to a pressure gauge protection on-off valve that can reduce the production cost as much as possible by reducing the number of parts thereof.
주지된 바와 같이, 종래의 압력게이지에 수동밸브와 1회이상 권회한 파이프를 연결하여 압력탱크에 장착하거나 또는 밸브내에 압력저지홀을 형성한 볼밸브를 압력게이지에 연결하여 압력탱크의 압력을 알 수 있도록 한 것이 널리 사용되어 오고 있는 것이다.As is well known, the pressure of the pressure tank can be known by connecting a manual valve and a pipe wound one or more times to a pressure tank, or connecting a ball valve having a pressure reducing hole in the valve to a pressure gauge. It has been widely used.
그러나 상기의 것들 중 1회이상 권회한 파이프와 수동밸브를 순차적으로 연결한 것은 그 길이가 길어 예를 들면, 탱크 설치 공간의 높이가 낮을 경우 설치가 불가능하며 조립이 번거로운 것일 뿐만 아니라 수동밸브나 볼밸브를 인위적으로 조작하여야 하기 때문에 시공후 상기의 밸브가 열려 있는지 또는 닫혀 있는지를 꼭 확인하여야 하는 문제점이 있었다.However, the pipes and the manual valves wound one or more times of the above are long in length, for example, when the height of the tank installation space is low, it is impossible to install them and the assembly is cumbersome as well. Since the manipulator must be artificially operated, there was a problem in that it must be checked whether the valve is open or closed after construction.
그래서, 근자에는 상기한 문제점들을 감안하여, 압력게이지가 결합된 상태에서 밸브본체의 개폐상태를 육안으로 확인할 수 있도록 함으로써 밸브본체 또는 압력게이지의 정상작동 여부를 알 수 있음은 물론, 이물질이 밸브 본체 또는 압력게이지로 유입되는 것을 방지하여 압력게이지의 고장발생요인을 근본적으로 해소시킬수 있는 압력게이지 보호용 개폐밸브가 개발되었던 바, 이의 구성을 도 1에 의거하여 살펴보면 상하부에 나사부(11,11')가 형성되고, 내부 감압부(12)의 외측에는 보스부(14)를 형성시킨 밸브본체(10)와, 상기 상기 나사부(11)에 착탈가능하게 설치되어 이물을 여과하는 필터(25)와, 상기 보스부(14)내에 설치되고 개폐레버(22)의 선택회동에 의해 개폐캡(18)의 통공(18a,18b)과, 밸브축(17)의 헤드부(15)의 밸브공(15a)이 일치 또는 엇갈리며 에어통로를 개폐시키는 밸브조립체(13)로 구성된 것을 알 수 있다.Therefore, in view of the above-mentioned problems, the valve body or pressure gauge can be checked whether the valve body or the pressure gauge is normally operated by visually confirming the open / closed state of the valve body in the state in which the pressure gauge is coupled. Alternatively, a pressure gauge protection on / off valve was developed to prevent the inflow of the pressure gauge to fundamentally eliminate the failure factor of the pressure gauge. Referring to FIG. 1, the upper and lower threads 11, 11 'have upper and lower threads. A valve main body 10 having a boss portion 14 formed on an outer side of the internal pressure reducing portion 12, a filter 25 that is detachably attached to the screw portion 11, and filters the foreign matter; The through hole 18a, 18b of the opening / closing cap 18 and the valve hole 15a of the head portion 15 of the valve shaft 17 are installed in the boss portion 14 by the selective rotation of the open / close lever 22. Match or staggered air It can be seen that the valve assembly consists of 13 to open and close the by.
그러나, 상기와 같이 구성된 종래의 개폐밸브는 개폐캡(18)과 밸브축(17)으로 구분 형성되기 때문에 이들 틈새로 에어가 누설되는 경우가 빈번하게 발생하였을 뿐만 아니라, 상기 밸브축(17)의 이탈을 방지하기 위하여 고정너트(20) 및 와셔(19) 등이 추가 설치되어야 하는 등의 많은 문제점이 있었다.However, since the conventional on-off valve configured as described above is formed into the on-off cap 18 and the valve shaft 17, air leaks frequently occur in these gaps, and the valve shaft 17 of the valve shaft 17 There have been many problems such as fixing nut 20, washer 19, etc. should be additionally installed in order to prevent separation.
따라서, 상기와 같은 문제점을 감안하여 창출한 것으로서 핸들과 연동되는 스핀들의 단부에 에어통로를 개폐할 수 있는 고무재질의 디스크를 장착함으로써 에어의 누설을 방지함은 물론이고, 상기 스핀들의 외주연에 밸브본체의 보스부와 체결되는 나사부를 형성함으로써 불필요한 부품수를 줄여 생산단가를 절감할 수 있도록 한 압력게이지 보호용 개폐밸브를 제공함에 그 목적이 있다.Therefore, in view of the above problems, by mounting a disk of rubber material to open and close the air passage at the end of the spindle interlocked with the handle to prevent the leakage of air, as well as to the outer periphery of the spindle It is an object of the present invention to provide a pressure gauge protection on-off valve for reducing the production cost by reducing the number of unnecessary parts by forming a screw to be engaged with the boss of the valve body.
도 1은 종래 기술에 따른 개폐밸브의 분해사시도,1 is an exploded perspective view of an on / off valve according to the prior art,
도 2는 본 고안에 따른 개폐밸브의 분해사시도,2 is an exploded perspective view of the on-off valve according to the present invention,
도 3은 본 고안에 따른 개폐밸브의 사시도,3 is a perspective view of the on-off valve according to the present invention,
도 4의 (a)와 (b)는 본 고안에 따른 개폐밸브의 작동상태를 보인 단면도.Figure 4 (a) and (b) is a cross-sectional view showing the operating state of the on-off valve according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
110:밸브본체 113:감압부110: valve body 113: pressure reducing unit
113a:에어통로 114:보스부113a: Air passage 114: Boss
115:암나사부 120:스핀들115: female thread 120: spindle
121:안내공 122:안내축121: guide 122: guide shaft
123:디스크 124:수나사부123: disc 124: male thread
125:링홈 126:오링125: ring groove 126: O-ring
127:걸림부 128:나사부127: catching part 128: screw part
129:고정너트 130:핸들129: fixing nut 130: handle
상기와 같은 목적을 달성하기 위한 본 고안은 그 양측 단부에 나사부가 각각 형성되고, 그 내부의 감압부의 외측에는 보스부를 형성하여 된 밸브본체와, 상기 밸브본체의 보스부에 장착되어 감압부의 에어통로를 제어하는 스핀들과, 상기 스핀들의 상단부에 결합되어 이의 회전을 용이하게 하는 핸들; 등으로 구성된 개폐밸브에 있어서, 상기 스핀들의 단부에 소정 깊이의 안내공을 형성하고, 상기 안내공에 안내축이 삽입되게 고무재질의 디스크를 설치하여 상기 디스크가 감압부의 에어통로를 개폐토록 하는 한편, 상기 스핀들의 외주연에 상기 보스부의 암나사부와 대응되는 수나사부를 형성하여 상기 스핀들의 승강에 따라 그 저부의 디스크에 의해 에어통로가 개폐되도록 하되, 상기 스핀들의 외주연에 링홈을 형성한 다음, 상기 링홈들에 에어의 누설을 방지할 수 있는 오링을 설치하여 보스부의 내주연과 밀착되게 하고, 상기 스핀들의 상단 외주연에 핸들의 걸림공과 대응되는 걸림부를 형성한 것을 특징으로 한다.The present invention for achieving the above object is the valve body is formed on both sides of the screw portion, the boss body is formed on the outside of the pressure reducing portion therein, and the air passage of the pressure reducing portion is mounted to the boss of the valve body A spindle for controlling the handle and coupled to an upper end of the spindle to facilitate its rotation; In the opening and closing valve, etc., a guide hole having a predetermined depth is formed at the end of the spindle, and a rubber disk is installed so that the guide shaft is inserted into the guide hole so that the disk opens and closes the air passage of the pressure reducing part. Forming a male screw portion corresponding to the female screw portion of the boss portion on the outer circumference of the spindle to allow the air passage to be opened and closed by a disk at the bottom thereof according to the lifting and lowering of the spindle, and forming a ring groove on the outer circumference of the spindle, The ring grooves are provided with an O-ring to prevent leakage of air to be in close contact with the inner circumference of the boss portion, characterized in that the engaging portion corresponding to the engaging hole of the handle is formed on the outer circumference of the upper end of the spindle.
이하, 본 고안의 바람직한 실시예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.
도 2는 본 고안에 따른 개폐밸브의 분해사시도이고, 도 3은 본 고안에 따른 개폐밸브의 사시도이며, 도 4의 (a)와 (b)는 본 고안에 따른 개폐밸브의 작동상태를 보인 단면도이다.Figure 2 is an exploded perspective view of the on-off valve according to the present invention, Figure 3 is a perspective view of the on-off valve according to the present invention, Figure 4 (a) and (b) is a cross-sectional view showing the operating state of the on-off valve according to the present invention. to be.
그 양측 단부에 나사부(111)(112)가 각각 형성되고, 그 내부의 감압부(113)의 외측에는 보스부(114)를 형성하여 된 밸브본체(110)와, 상기 밸브본체(110)의 보스부(114)에 장착되어 감압부(113)의 에어통로(113a)를 제어하는 스핀들(120)과, 상기 스핀들(120)의 상단부에 결합되어 이의 회전을 용이하게 하는 핸들(130); 등으로 구성된 개폐밸브에 있어서,The threaded parts 111 and 112 are formed at both ends of the valve body 110, and the boss body 114 is formed at the outer side of the pressure reducing part 113 therein, and the valve body 110 of the valve body 110 is formed. A spindle (120) mounted to the boss unit (114) for controlling the air passage (113a) of the decompression unit (113), and a handle (130) coupled to the upper end of the spindle (120) to facilitate its rotation; In the on-off valve composed of
먼저, 상기 스핀들(120)의 단부에 소정 깊이의 안내공(121)을 형성하고, 상기 안내공(121)에 안내축(122)이 삽입되게 고무재질의 디스크(123)를 설치하여 상기 디스크(123)가 감압부(113)의 에어통로(113a)를 개폐토록 한다.First, a guide hole 121 having a predetermined depth is formed at an end of the spindle 120, and a rubber disk 123 is installed to insert the guide shaft 122 into the guide hole 121. 123 opens and closes the air passage 113a of the pressure reducing unit 113.
그리고, 상기 스핀들(120)의 외주연에 보스부(114)의 암나사부(115)와 대응되는 수나사부(124)를 형성하여 상기 스핀들(120)의 승강에 따라 에어통로(113a)가 개폐되도록 한다.In addition, a male thread part 124 corresponding to the female thread part 115 of the boss part 114 is formed on the outer circumference of the spindle 120 so that the air passage 113a is opened and closed according to the lifting and lowering of the spindle 120. do.
이때, 상기 스핀들(120)의 외주연에 보스부(114)의 내주연과 근접되는 링홈(125)을 형성한 다음, 상기 링홈(125)들에 에어의 누설을 방지할 수 있는 오링(126)을 설치하여 보스부(114)의 내주연과 밀착되게 한다.At this time, the ring groove 125 is formed on the outer circumference of the spindle 120 close to the inner circumference of the boss portion 114, the O-ring 126 that can prevent the leakage of air in the ring groove (125) It is installed to be in close contact with the inner circumference of the boss portion 114.
또한, 상기 스핀들(120)의 상단 외주연에 핸들(130)의 걸림공(131)과 대응되는 걸림부(127)를 형성하여 상호 결합한 다음, 상기 스핀들(120) 상단의 나사부(128)에 고정너트(129)를 체결하여 스핀들(120)로부터 핸들(130)이 이탈하는 것을 방지한다.In addition, the engaging portion 127 corresponding to the engaging hole 131 of the handle 130 is formed on the outer periphery of the upper end of the spindle 120 and coupled to each other, and then fixed to the threaded portion 128 of the upper end of the spindle 120. The nut 129 is fastened to prevent the handle 130 from being separated from the spindle 120.
상기와 같이 구성된 개폐밸브의 작용을 상세히 설명하면 다음과 같다.Referring to the operation of the on-off valve configured as described above in detail as follows.
먼저, 상기 스핀들(120)의 하단부에 구비되어진 안내공(121)에 디스크(123)의 안내축(122)을 삽입 설치한 다음, 상기 스핀들(120)의 링홈(125)에 오링(126)을 장착한다.First, the guide shaft 122 of the disc 123 is inserted into and installed in the guide hole 121 provided at the lower end of the spindle 120, and then the O-ring 126 is inserted into the ring groove 125 of the spindle 120. Mount it.
그런 다음, 도 4의 (a)와 같이 상기 보스부(114)의 암나사부(115)에 스핀들(120)의 수나사부(124)를 장착하게 되는데, 이때 스핀들(120)에 설치되어진 오링(126)이 보스부(114)의 내주연에 밀착됨으로써 보스부(114)와 스핀들(120)의 사이로 에어가 누설되는 것을 방지할 수 있다.Then, as shown in (a) of FIG. 4, the male thread portion 124 of the spindle 120 is mounted on the female thread portion 115 of the boss portion 114. At this time, the O-ring 126 installed on the spindle 120 is mounted. ) Is in close contact with the inner circumference of the boss portion 114, it is possible to prevent the air leakage between the boss portion 114 and the spindle 120.
상기 보스부(114)에 스핀들(120)이 장착되면, 스핀들(120) 상단의 걸림부(127)에 핸들(130)의 걸림공(131)을 결합한 다음, 상기 스핀들(120) 상단의 나사부(128)에 고정너트(129)를 체결하여 스핀들(120)로부터 핸들(130)이 이탈하는 것을 방지한다.When the spindle 120 is mounted to the boss part 114, the locking hole 131 of the handle 130 is coupled to the locking part 127 of the upper end of the spindle 120, and then the screw part of the upper end of the spindle 120 is attached to the boss 120. The fixing nut 129 is fastened to the 128 to prevent the handle 130 from being separated from the spindle 120.
상기와 같이 스핀들(120)이 장착된 상태에서 핸들(130)을 일방향으로 회전시키게 되면, 도 4의 (b)와 같이 스핀들(120)의 수나사부(124)가 보스부(114)의 암나사부(115)를 따라 상승함과 동시에 스핀들(120) 저부의 디스크(123)가 감압부(113)의 에어통로(113a)로부터 이격됨으로써 에어가 유통된다.When the handle 130 is rotated in one direction while the spindle 120 is mounted as described above, the male screw portion 124 of the spindle 120 is the female screw portion of the boss portion 114 as shown in FIG. At the same time as rising along the 115, the disk 123 of the bottom of the spindle 120 is spaced apart from the air passage (113a) of the pressure reducing section 113, the air is passed.
이와 반대로, 상기 핸들(130)을 다른 일방향으로 회전시키게 되면 도 4의 (a)와 같이 스핀들(120)의 수나사부(124)가 보스부(114)의 암나사부(115)를 따라 하강함과 동시에 스핀들(120) 저부의 디스크(123)가 감압부(113)의 에어통로(113a)를 차단시킴으로써 에어의 유통을 차단하는데, 이때 상기 디스크(123)가 고무재질로 형성되어 있어 에어통로(113a)를 완전히 밀폐시킬 수 있다.On the contrary, when the handle 130 is rotated in another direction, the male screw portion 124 of the spindle 120 descends along the female screw portion 115 of the boss portion 114 as shown in FIG. At the same time, the disk 123 at the bottom of the spindle 120 blocks the flow of air by blocking the air passage 113a of the decompression unit 113. At this time, the disk 123 is formed of a rubber material, and thus the air passage 113a. ) Can be completely sealed.
따라서, 본 고안은 핸들(130)과 연동되는 스핀들(120)의 단부에 에어통로(113a)를 개폐할 수 있는 고무재질의 디스크(123)를 장착함으로써 에어의 누설을 방지함은 물론이고, 상기 스핀들(120)의 외주연에 밸브본체(110)의 보스부(114)와 체결되는 수나사부(124)를 형성함으로써 스핀들(120)을 고정시키기 위한 부품을 줄여 생산단가를 절감할 수 있도록 한 매우 유용한 효과가 있다.Therefore, the present invention, of course, by preventing the leakage of air by mounting a disk 123 of a rubber material that can open and close the air passage (113a) at the end of the spindle 120 that is interlocked with the handle 130, By forming a male threaded portion 124 which is coupled to the boss portion 114 of the valve body 110 at the outer circumference of the spindle 120, it is possible to reduce the parts for fixing the spindle 120 to reduce the production cost. It has a useful effect.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0026737U KR200369132Y1 (en) | 2004-09-17 | 2004-09-17 | The opening and closing valve for protecting the pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0026737U KR200369132Y1 (en) | 2004-09-17 | 2004-09-17 | The opening and closing valve for protecting the pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR200369132Y1 true KR200369132Y1 (en) | 2004-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2004-0026737U KR200369132Y1 (en) | 2004-09-17 | 2004-09-17 | The opening and closing valve for protecting the pressure gauge |
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| Country | Link |
|---|---|
| KR (1) | KR200369132Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100536820B1 (en) * | 2005-06-30 | 2005-12-14 | (주) 삼원미터텍 | The opening and closing valve for protecting the pressure gauge |
-
2004
- 2004-09-17 KR KR20-2004-0026737U patent/KR200369132Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100536820B1 (en) * | 2005-06-30 | 2005-12-14 | (주) 삼원미터텍 | The opening and closing valve for protecting the pressure gauge |
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