KR200460266Y1 - A Railway car air valve - Google Patents

A Railway car air valve Download PDF

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Publication number
KR200460266Y1
KR200460266Y1 KR2020100002539U KR20100002539U KR200460266Y1 KR 200460266 Y1 KR200460266 Y1 KR 200460266Y1 KR 2020100002539 U KR2020100002539 U KR 2020100002539U KR 20100002539 U KR20100002539 U KR 20100002539U KR 200460266 Y1 KR200460266 Y1 KR 200460266Y1
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South Korea
Prior art keywords
air
valve
pipe
sleeve nut
liquid
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KR2020100002539U
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Korean (ko)
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KR20110008893U (en
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황진택
이하희
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현대로템 주식회사
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Priority to KR2020100002539U priority Critical patent/KR200460266Y1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes
    • B61H13/34—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/021—Railway control or brake valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes
    • B61H13/20—Transmitting mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes
    • B61H13/34—Details
    • B61H13/38—Suspension of transmitting mechanisms
    • 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
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • 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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Valve Housings (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Multiple-Way Valves (AREA)

Abstract

본 고안은 철도차량용 공기밸브에 관한 것으로서, 특히 공기밸브의 양단에 배관과의 체결을 위한 슬리브너트를 일체로 구비함으로써, 배관작업시 추가적으로 커플러를 사용하지 않아 작업시간 단축을 통한 효율증대를 이루도록 하는 철도차량용 공기밸브에 관한 것이다. 구성은 관로(管路) 도중에 장치하여 액체나 공기의 흐름을 멈추게 하거나, 유량(流量)을 조절하는 밸브에 있어서, 상기 밸브의 조인트 부분인 액체나 공기를 출입시키는 공기유입구와 공기유출구에는 일 측으로 액체 또는 공기의 유출을 방지하기 위한 오링이 형성되고, 배관의 외경에 따라 가감될 수 있는 내경을 갖는 슬리브너트가 일체로 형성되는 것을 특징으로 한다.The present invention relates to an air valve for a railway vehicle, and in particular, a sleeve nut for fastening a pipe to both ends of an air valve is integrally provided, so that an efficiency is increased by shortening the working time by not using an additional coupler during piping work To an air valve for a railway vehicle. The valve is configured to stop the flow of liquid or air or to adjust the flow rate by installing the valve in the middle of a pipeline. The valve has an air inlet and an air outlet, through which liquid or air, which is a joint part of the valve, An O-ring for preventing the outflow of liquid or air is formed, and a sleeve nut having an inner diameter that can be increased or decreased according to the outer diameter of the pipe is integrally formed.

Description

철도차량용 공기밸브{A Railway car air valve}A railway car air valve

본 고안은 철도차량용 공기밸브에 관한 것으로서, 특히 공기밸브의 몸체 양단에 배관과의 체결을 위한 슬리브너트를 일체로 구비함으로써, 배관작업시 추가적으로 커플러를 사용하지 않아 작업시간 단축을 통한 효율증대를 이루도록 하는 철도차량용 공기밸브에 관한 것이다. The present invention relates to an air valve for a railway vehicle, and in particular, a sleeve nut for fastening to a pipe is integrally provided at both ends of an air valve body, so that an additional coupler is not used in piping work, To an air valve for a railway car.

일반적으로 액체가 유동하는 통로에 뚫려 있는 원뿔형 또는 원통형 구멍에 끼워져 있는 플러그를 돌려서 액체의 흐름을 멈추게 하거나 유량을 가감시키는 밸브는, 출입구가 두 방향으로 나 있는 것을 2면콕, 세 방향으로 나 있는 것을 3면콕, 네 방향으로 나 있는 것을 4면콕이라고 하고, 액체가 아닌 공기의 흐름에 사용하기도 하는 에어콕(air cock) 즉, 공기밸브도 있다.In general, a valve that stops the flow of liquid by turning a plug inserted in a conical or cylindrical hole that is opened in a passage through which liquid flows, or a valve that increases or decreases the flow rate, 3-way cock, 4-way cock in four directions, and an air cock, or air valve, which is also used for non-liquid air flow.

이러한 종래의 공기밸브는 도 1에 도시된 바와 같이, 공기의 흐름을 개폐하기 위해 회전동작하는 레버(111)가 상부 중앙부에 형성된 몸체(110)와; 상기 몸체(110)의 양단에 형성되어 내경부에는 체결을 위한 나사(112a),(113a)를 형성한 공기유출구(112) 및 공기유입구(113)와; 상기 공기유출구(112)와, 공기유입구(113)에 체결되는 제1커플러(120a) 및, 제2커플러(120b)와; 상기 제1커플러(120a)와 제2커플러(120b)에 체결되는 제1배관(130a)과 제2배관(130b)으로 이루어진다.As shown in FIG. 1, the conventional air valve includes a body 110 having a lever 111, which is rotatably operated to open and close a flow of air, An air outlet 112 and an air inlet 113 formed at both ends of the body 110 and having screws 112a and 113a for fastening; A first coupler 120a and a second coupler 120b fastened to the air inlet 113 and the air outlet 112; And a first pipe 130a and a second pipe 130b fastened to the first coupler 120a and the second coupler 120b.

그러나, 상기와 같은 종래의 공기밸브(100)는 몸체(110)의 양단에 형성된 공기유출구(112) 및 공기유입구(113)에 직접 제1배관(130a)과 제2배관(130b)이 연결되지 못하고 별도의 제1커플러(120a)와 제2커플러(120b)를 연결한 후, 상기 제1커플러(120a)와 제2커플러(120b)에 제1배관(130a)과 제2배관(130b)을 다시 연결하여야 하므로 이중 작업이 이루어질 뿐만 아니라 연결부분 즉, 조인트 부분으로 누기가 발생하는 문제점이 있었다.However, in the conventional air valve 100, the first pipe 130a and the second pipe 130b are directly connected to the air outlet 112 and the air inlet 113 formed at both ends of the body 110 The first and second couplers 120a and 120b are connected to each other so that the first and second pipes 130a and 130b are connected to the first coupler 120a and the second coupler 120b, There is a problem that leakage occurs to the joint portion, that is, the joint portion.

또, 종래의 공기밸브(100)는 제1배관(130a)과 제2배관(130b)의 체결을 위해 커플러를 반드시 체결하여야 하므로 많은 조립공정으로 인하여 작업시간이 오래 걸리고, 커플러 제작을 위한 비용이 추가로 소요되며, 작업 능율 저하와 작업자에게 피로감을 주는 문제점이 있다.In addition, since the conventional air valve 100 must fasten the coupler for fastening the first pipe 130a and the second pipe 130b, it takes a long time for the assembly due to a lot of assembling processes, There is a problem that the work efficiency is lowered and the worker is fatigued.

이에, 본 고안은 상기와 같은 문제점을 해결하기 위해 안출된 것으로서, 본 고안의 목적은 공기의 출입을 조절하기 위한 밸브에 배관의 연결시 별도의 커플러를 사용하지 않고 직접 배관의 연결이 가능한 공기밸브를 제공하는 것이다.In order to solve the above problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an air valve which can directly connect piping without connecting a separate coupler to a valve .

상기한 목적을 달성하기 위한 본 고안은 관로(管路) 도중에 장치하여 액체나 공기의 흐름을 멈추게 하거나, 유량(流量)을 조절하는 밸브에 있어서, 상기 밸브의 조인트 부분인 액체나 공기를 출입시키는 공기유입구와 공기유출구에는 일 측으로 액체 또는 공기의 유출을 방지하기 위한 오링이 형성되고, 배관의 외경에 따라 가감될 수 있는 내경을 갖는 슬리브너트가 일체로 형성되는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a valve for stopping the flow of liquid or air by adjusting the flow rate of a liquid during the passage of a pipe, An air inlet and an air outlet are formed with an O-ring for preventing the outflow of liquid or air to one side, and a sleeve nut having an inner diameter which can be adjusted according to the outer diameter of the pipe.

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이상에서 설명한 바와 같이 본 고안은 밸브의 양단에 배관을 연결하기 위한 슬리브너트를 일체로 형성함으로써, 추가적인 커플러 연결 작업을 하지 않아도 되므로 작업시간 단축과 생산효율증대 및 별도의 커플러 구입을 위한 비용 절감 뿐만 아니라, 연결부가 줄어 누기 발생을 감소시키는 등의 효과가 있다.As described above, according to the present invention, since the sleeve nut for connecting the piping to both ends of the valve is integrally formed, additional coupler connection operation is not required, thereby reducing the working time, increasing the production efficiency, and reducing the cost for purchasing a separate coupler However, it has the effect of reducing the occurrence of leakage by reducing the number of connections.

도 1은 종래의 철도차량용 공기밸브를 나타낸 도면이다.
도 2는 본 고안에 따른 철도차량용 공기밸브를 개략적으로 나타낸 도면이다.
도 3은 본 고안에 따른 철도차량용 공기밸브의 요부 단면 상태를 나타낸 도면이다.
도 4는 본 고안에 따른 철도차량용 공기밸브에 배관을 연결한 사용 상태를 나타낸 도면이다.1 is a view showing a conventional air valve for a railway vehicle.
2 is a schematic view of an air valve for a railway vehicle according to the present invention.
3 is a cross-sectional view of a main portion of an air valve for a railway vehicle according to the present invention.
FIG. 4 is a view showing a use state in which a pipe is connected to an air valve for a railway vehicle according to the present invention.

이하, 본 고안에 따른 철도차량용 공기밸브의 바람직한 실시 예를 첨부된 도면에 의거하여 보다 구체적으로 설명한다.Hereinafter, preferred embodiments of the air valve for a railway vehicle according to the present invention will be described in more detail with reference to the accompanying drawings.

여기서, 하기의 모든 도면에서 동일한 기능을 갖는 구성요소는 동일한 참조부호를 사용하여 반복적인 설명은 생략하며, 아울러, 후술되는 용어들은 본 고안에서의 기능을 고려하여 정의된 것으로서, 이것은 고유의 통용되는 의미로 해석되어야 함을 명시한다.Hereinafter, elements having the same function in all the following drawings will be denoted by the same reference numerals, and repetitive description will be omitted. Further, the following terms are defined in consideration of functions in the present invention, It should be interpreted as meaning.

도 2 내지 도 4에 도시된 바와 같이 본 고안의 철도차량용 공기밸브(200)는 관로(管路) 도중에 장치하여 레버(211)의 조작으로 액체나 공기의 흐름을 멈추게 하거나, 유량(流量)을 조절하는 것으로서, 몸체(210)의 양단에 형성된 연결(조인트)부분 즉, 액체나 공기를 출입시키는 공기유입구(212a)와, 공기유출구(213a)에는 제1배관(230a)과, 제2배관(230b)을 연결하기 위한 제1슬리브너트(212)와, 제2슬리브너트(213)가 일체로 형성된다. As shown in Figs. 2 to 4, the air valve 200 for a railway vehicle according to the present invention is installed during a pipeline so as to stop the flow of liquid or air by operating the lever 211, A joint portion formed at both ends of the body 210, that is, an air inlet 212a for allowing liquid or air to flow in and out, and a first pipe 230a and a second pipe 230b for the air outlet 213a, The first sleeve nut 212 and the second sleeve nut 213 are integrally formed.

여기서, 상기 공기유입구(212a)와, 공기유출구(213a)는 두 방향으로 형성되어 있는 것을 2면콕, 세 방향으로 형성되어 있는 것을 3면콕, 네 방향으로 형성되어 있는 것을 4면콕이라고 하며, 본 고안에서는 2면 콕을 일예로써 설명한다.Here, the air inlet 212a and the air outlet 213a are formed in two directions, two-sided, three-sided, three-sided, four-sided, and four-sided, respectively. A two-sided cock is described as an example.

또, 상기 제1슬리브너트(212)와, 제2슬리브너트(213)의 내경의 크기는 결합되는 제1배관(220)과 제2배관(230)의 외경의 크기에 따라 가감될 수 있다.The sizes of the inner diameters of the first sleeve nut 212 and the second sleeve nut 213 may be adjusted depending on the outer diameters of the first pipe 220 and the second pipe 230.

즉, 상기 제1배관(220)과, 제2배관(230)의 외경이 커면, 상기 제1슬리브너트(212)와, 제2슬리브너트(213)의 내경 또한 크게 형성하고, 상기 제1배관(220)과, 제2배관(230)의 외경이 작으면, 제1슬리브너트(212)와, 제2슬리브너트(213)의 내경 또한 작게 형성할 수 있다.That is, when the outer diameters of the first pipe 220 and the second pipe 230 are increased, the inner diameters of the first sleeve nut 212 and the second sleeve nut 213 are also increased, The inner diameters of the first sleeve nut 212 and the second sleeve nut 213 may be reduced if the outer diameter of the first pipe 220 and the second pipe 230 is small.

또, 상기 제1슬리브너트(212)와 제2슬리브너트(213)의 내경 부분 일측으로는 액체 또는 공기의 유출을 방지 즉, 기밀을 보다 확실하게 유지하기 위한 오링(212b),(213b)이 형성된다.The O-rings 212b and 213b for preventing the outflow of liquid or air, that is, the airtightness more reliably, are provided at one side of the inner diameter portion of the first sleeve nut 212 and the second sleeve nut 213 .

상기 제1슬리브너트(212)와 제2슬리브너트(213)의 내경은 공구 등으로 절삭 가공하여 간단히 형성될 수 있다. 즉, 상기 제1슬리브너트(212)와 제2슬리브너트(213)를 일정한 두께의 파이프 구조를 이루도록 공기밸브(200)의 공기유입구(212a)와, 공기유출구(213a) 부분에 일체로 형성한 뒤, 그 내경을 절삭 가공하므로 가공시간의 단축은 물론, 커플러를 별도로 가공할시 발생되는 재료의 손실량을 줄일 수 있게 된다.The inner diameters of the first sleeve nut 212 and the second sleeve nut 213 can be simply formed by cutting with a tool or the like. That is, the first sleeve nut 212 and the second sleeve nut 213 are integrally formed in the air inlet 212a and the air outlet 213a of the air valve 200 to have a constant pipe structure The inner diameter of the coupler is cut, so that not only the machining time is shortened but also the amount of loss of material generated when the coupler is separately machined can be reduced.

뿐만 아니라, 본 고안에 따른 공기밸브(200)는 공기유입구(212a)와, 공기유출구(213a)에 제1슬리브너트(212)와 제2슬리브너트(213)를 일체로 형성함에 따라, 추가적으로 커플러 연결작업을 하지 않아도 되므로 작업시간의 단축과 이로 인해 생산 효율을 증대시킬 수 있다.The air valve 200 according to the present invention has the air inlet 212a and the first sleeve nut 212 and the second sleeve nut 213 integrally formed in the air outlet 213a, It is possible to shorten the working time and thereby increase the production efficiency.

따라서, 별도의 커플러를 제작하지 않아도 되므로 원가절감을 이룰 수 있고, 또 커플러 연결을 위한 조인트 부분을 줄일 수 있어 누기가 발생할 가능성이 감소되는 철도차량용 공기밸브를 얻을 수 있다.Accordingly, since it is not necessary to manufacture a separate coupler, cost reduction can be achieved, and joint portions for connecting the coupler can be reduced, thereby reducing the possibility of leakage.

이상에서 설명한 본 고안은 전술한 실시 예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 고안의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지로 치환, 변형 및 균등한 타 실시 예로의 변경이 가능함은 본 고안이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어서 명백할 것이다. It is to be understood that the above-described embodiments of the present invention are not limited to the above-described embodiments and the accompanying drawings, and various changes, substitutions, and equivalents may be made without departing from the spirit of the present invention. And will be apparent to those skilled in the art to which the invention pertains.

200 : 철도차량용 공기밸브 210 : 몸체
211 : 레버 212 : 제1슬리브너트(sleeve nut)
212a : 공기유입구 213 : 제2슬리브너트
213a : 공기유출구 212b, 213b : 오링
220 : 제1배관 230 : 제2배관200: railway air valve 210: body
211: lever 212: first sleeve nut
212a: Air inlet 213: Second sleeve nut
213a: air outlet 212b, 213b: O-ring
220: first pipe 230: second pipe

Claims (3)

관로(管路) 도중에 장치하여 액체나 공기의 흐름을 멈추게 하거나, 유량(流量)을 조절하는 밸브에 있어서,
상기 밸브의 조인트 부분인 액체나 공기를 출입시키는 공기유입구와 공기유출구에는 일 측으로 액체 또는 공기의 유출을 방지하기 위한 오링이 형성되고, 배관의 외경에 따라 가감될 수 있는 내경을 갖는 슬리브너트가 일체로 형성되는 것을 특징으로 하는 철도차량용 공기밸브.A valve for stopping the flow of liquid or air or adjusting a flow rate (flow rate) by means of a pipe line,
Wherein a sleeve nut having an inner diameter capable of being adjusted in accordance with an outer diameter of the pipe is integrally formed with an air inlet and an air outlet through which liquid or air as a joint portion of the valve is taken out and an O- Wherein the air valve is formed of a metal plate. 삭제delete 삭제delete
KR2020100002539U 2010-03-12 2010-03-12 A Railway car air valve KR200460266Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103507824A (en) * 2013-09-29 2014-01-15 浙江金字机械电器有限公司 Cutout cock for rail car
KR20160091627A (en) 2015-01-26 2016-08-03 최은순 Cut off side vent valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223953B (en) * 2013-05-13 2016-06-15 南车戚墅堰机车有限公司 A kind of Train hook breakage protective system

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Publication number Priority date Publication date Assignee Title
JPH08334184A (en) * 1995-06-07 1996-12-17 Sekisui Chem Co Ltd Ball valve
JP2001090856A (en) 1999-09-24 2001-04-03 Sekisui Chem Co Ltd Ball valve
JP2001263520A (en) 2000-03-21 2001-09-26 Sekisui Chem Co Ltd Ball valve
KR200407161Y1 (en) 2005-10-27 2006-01-25 정예호 Joint for pipe-joining

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08334184A (en) * 1995-06-07 1996-12-17 Sekisui Chem Co Ltd Ball valve
JP2001090856A (en) 1999-09-24 2001-04-03 Sekisui Chem Co Ltd Ball valve
JP2001263520A (en) 2000-03-21 2001-09-26 Sekisui Chem Co Ltd Ball valve
KR200407161Y1 (en) 2005-10-27 2006-01-25 정예호 Joint for pipe-joining

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103507824A (en) * 2013-09-29 2014-01-15 浙江金字机械电器有限公司 Cutout cock for rail car
KR20160091627A (en) 2015-01-26 2016-08-03 최은순 Cut off side vent valve

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