KR20180090042A - A ball valve - Google Patents

A ball valve Download PDF

Info

Publication number
KR20180090042A
KR20180090042A KR1020170014938A KR20170014938A KR20180090042A KR 20180090042 A KR20180090042 A KR 20180090042A KR 1020170014938 A KR1020170014938 A KR 1020170014938A KR 20170014938 A KR20170014938 A KR 20170014938A KR 20180090042 A KR20180090042 A KR 20180090042A
Authority
KR
South Korea
Prior art keywords
valve body
passage
retainer
valve
opening
Prior art date
Application number
KR1020170014938A
Other languages
Korean (ko)
Other versions
KR101973251B1 (en
Inventor
최종묵
Original Assignee
(주)디알밸브
최종묵
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.)
Filing date
Publication date
Application filed by (주)디알밸브, 최종묵 filed Critical (주)디알밸브
Priority to KR1020170014938A priority Critical patent/KR101973251B1/en
Publication of KR20180090042A publication Critical patent/KR20180090042A/en
Application granted granted Critical
Publication of KR101973251B1 publication Critical patent/KR101973251B1/en

Links

Images

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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K5/0647—Spindles or actuating means
    • 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
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • 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
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The present invention provides a ball valve including: a valve body having an introduction passage (11), a discharge passage (12), and a central passage that connects the discharge passage (12) and the introduction passage (11) in the interior thereof and having an opening (14) communicating with the central passage (13) and opened and closed by a cover (18) on one side thereof; a protruding end pipe part (15) integrally extending from a periphery of the introduction passage (11) or the discharge passage (12) of the valve body (10), located in the central passage (13) of the valve body (10), and exposed to the outside through the opening (14) of the valve body (10); a valve body (20) embedded in the central passage (13) through the opening (14) of the valve body (10) and configured to open and close the introduction passage (11) and the discharge passage (12); an operation stem (30), one end of which is coupled to the valve body (2) and an opposite end of which protrudes to the outside, and configured to operate the valve body (20) through an external manipulation; a valve seat (40) installed in the protruding end pipe part (15) and having a seat surface (41) which the valve body contacts on an inner peripheral surface of a tip end thereof; a retainer (50), in which the valve seat (40) is mounted on an inner peripheral thereof, and an outer peripheral surface of which is coupled to an inner peripheral surface of the protruding end pipe part (15) of the valve body (10); and a pressing bolt (60) screw-coupled to an upper surface of the protruding end pipe part (15) and configured to press an outer surface of the retainer (50). According to the present invention, leakage may be prevented because the valve seat does not deviate from a proper location even when the valve seat is pressed by rotation of the valve body by fixing the valve seat more firmly through a simpler method.

Description

볼밸브{A ball valve}A ball valve

본 발명은 볼밸브에 관한 것으로, 보다 상세하게는 유로를 개폐하는 볼밸브에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball valve, and more particularly to a ball valve for opening and closing a flow path.

일반적으로 볼밸브는 볼형상의 밸브체에 의해 유로를 개폐하는 것으로, 이러한 볼밸브의 일례를 도 1에 도시하였다. 도시된 바와 같이, 종래의 볼밸브는 내부에 유로(2)가 형성된 밸브바디(1)와, 이 밸브바디(1)의 유로(2)의 중앙부에 내장되어 유로(2)를 개폐하는 밸브체(4)와, 이 밸브체(4)에 결합되어 개폐조작하는 작동스템(5)과, 상기 밸브바디(1)의 유로(2) 상에 구비되어 밸브체(4)가 안착되는 링 형상의 밸브시트(6)를 포함하여 이루어진다. 이때, 밸브시트(6)는 밸브체(3)와 유로(2)의 틈새를 밀폐한다. 한편, 밸브바디(1)의 중앙부에는 유로(2)와 연통되며 밸브체(4)가 출입되는 개구부(3)가 덮개(7)에 의해 개폐가능하게 형성되며, 작동스템(5)은 덮개(7)를 관통하게 된다. In general, a ball valve is a valve that opens and closes a flow path by a valve-like valve body. An example of such a ball valve is shown in Fig. As shown in the drawing, a conventional ball valve includes a valve body 1 in which a flow path 2 is formed, a valve body 1 which is built in a central portion of the flow path 2 of the valve body 1, An operating stem 5 that is coupled to the valve body 4 to open and close the valve body 4 and a ring shaped valve body 4 that is provided on the flow path 2 of the valve body 1 and on which the valve body 4 is seated. And a valve seat (6). At this time, the valve seat (6) seals the gap between the valve body (3) and the flow path (2). An opening 3 communicating with the flow path 2 and in and out of the valve body 4 is formed at a central portion of the valve body 1 so as to be openable and closable by a lid 7, 7).

그런데 종래에는 도 1과 같이 밸브시트(6)의 외주면에는 탄성작동을 위한 스프링(8)과 이 스프링(8)의 부식방지를 위한 패킹(9)을 삽입하게 되므로 나사산을 형성하지 못하여 밸브시트(6)를 밸브바디(1)에 억지끼움결합시키기 때문에, 밸브시트(6)가 밸브바디(1)에 견고하게 고정되지 못하는 문제가 있다. 이에 따라, 밸브체(4)의 반복적인 회전에 의해 밸브시트(6)가 가압되면서 뒤틀리는 등 정위치를 벗어나게 되어 누수가 발생되는 문제가 있다.1, since a spring 8 for elastic actuation and a packing 9 for preventing corrosion of the spring 8 are inserted into the outer circumferential surface of the valve seat 6, 6 is forcedly engaged with the valve body 1, there is a problem that the valve seat 6 can not be firmly fixed to the valve body 1. [ As a result, the valve seat 6 is pressed by the repetitive rotation of the valve body 4, and the valve seat 6 is out of the correct position, for example, twisted, and leakage occurs.

한국 등록실용신안공보 제20-0287718호Korean Registered Utility Model No. 20-0287718

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 밸브시트를 보다 간단한 방법으로 좀 더 견고하게 고정시켜 밸브체의 회전에 의해 가압되더라도 정위치를 벗어나지 않게 함으로써 누수가 발생되는 것이 방지되도록 한 볼밸브를 제공하는 것에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a valve seat which is more firmly fixed by a simpler method so that even if it is pressed by the rotation of the valve body, And the ball valve is prevented.

본 발명의 특징에 따르면, 유체가 유입되는 유입유로(11), 유체가 배출되는 배출유로(12) 및 이 배출유로(12)와 유입유로(11)를 연통시키되 유입 및 배출유로(11,12)보다 직경이 확장된 중앙유로(13)가 내부에 형성되며, 일측에는 중앙유로(13)와 연통되고 덮개(18)에 의해 개폐되는 개구부(14)가 형성된 밸브바디(10); 상기 밸브바디(10)의 유입유로(11) 또는 배출유로(12)의 테두리에서 일체로 연장되어 밸브바디(10)의 중앙유로(13)에 위치되되 상면이 상기 밸브바디(10)의 개구부(14)를 통해 외부로 노출되는 돌출단관부(15); 상기 밸브바디(10)의 개구부(14)를 통해 중앙유로(13)에 내장되고, 상기 유입유로(11) 및 배출유로(12)를 개폐시키는 만곡면(21)이 형성된 밸브체(20); 일단이 상기 밸브체(20)에 결합되고 타단이 상기 밸브바디(10)의 개구부(14) 및 덮개(18)를 통해 외부로 돌출되어 외부조작에 의해 밸브체(20)를 작동시키는 작동스템(30); 상기 돌출단관부(15)에 설치되고, 선단부 내주면에는 상기 밸브체(20)의 만곡면(21)이 접촉되는 시트면(41)이 형성된 밸브시트(40); 내주면에 상기 밸브시트(40)가 장착되고 외주면이 밸브바디(10)의 돌출단관부(15)의 내주면에 결합된 리테이너(50); 및 상기 돌출단관부(15)의 상면에 나사결합되어 리테이너(50)의 외측면을 가압하는 가압볼트(60);를 포함하여 이루어진 것을 특징으로 하는 볼밸브가 제공된다.According to an aspect of the present invention, there is provided an air conditioner comprising: an inflow passage (11) through which a fluid flows; a discharge passage (12) through which a fluid is discharged; and an inflow and outflow passage A valve body 10 having a central passage 13 having a diameter larger than that of the central passage 13 and having an opening 14 communicated with the central passage 13 and opened and closed by a lid 18; Is integrally extended from the rim of the inflow passage 11 or the discharge passage 12 of the valve body 10 and is positioned at the central passage 13 of the valve body 10, A protruding end tube portion 15 which is exposed to the outside through an opening 14; A valve body 20 built in the central passage 13 through an opening 14 of the valve body 10 and having a curved surface 21 for opening and closing the inlet passage 11 and the discharge passage 12; An operating stem (not shown) which is coupled to the valve body 20 at one end and protrudes outside through the opening 14 and the lid 18 of the valve body 10 to operate the valve body 20 by an external operation 30); A valve seat (40) provided on the projecting end (15) and having a seat surface (41) on which the curved surface (21) of the valve body (20) contacts; A retainer (50) mounted on the inner circumferential surface of the valve seat (40) and having an outer circumferential surface coupled to an inner circumferential surface of the projecting end portion (15) of the valve body (10); And a pressing bolt (60) screwed on the upper surface of the projecting end portion (15) to press the outer surface of the retainer (50).

본 발명의 다른 특징에 따르면, 상기 돌출단관부(15)의 내주면에는 복수개의 오목홈(16)이 원주방향을 따라 이격 형성되고, 상기 리테이너(50)에는 일단이 밸브바디(10)의 돌출단관부(15)의 각 오목홈(16)과 대응되는 위치에 형성되며 타단이 중앙유로(13)를 향하는 복수개의 관통공(51)이 형성되고, 상기 리테이너(50)의 관통공(51)의 일단부에 삽입되는 결합볼(70)과, 상기 리테이너(50)의 관통공(51)의 타단부에 나사결합되어 상기 결합볼(70)이 밸브바디(10)의 돌출단관부(15)의 오목홈(16)에 삽입된 상태를 유지시키는 푸셔볼트(80)가 더 구비된 것을 특징으로 하는 볼밸브가 제공된다.According to another aspect of the present invention, a plurality of recessed grooves 16 are formed on the inner circumferential surface of the projecting end portion 15 in the circumferential direction, and one end of the retainer 50 is connected to the projecting end of the valve body 10 A plurality of through holes 51 are formed at positions corresponding to the respective recessed grooves 16 of the retainer 50 and the other end is directed to the central flow passage 13, And the engaging ball 70 is screwed to the other end of the through hole 51 of the retainer 50 so that the engaging ball 70 is engaged with the protruding end portion 15 of the valve body 10 And a pusher bolt (80) for maintaining the inserted state in the concave groove (16).

이상에서와 같이 본 발명에 의하면, 밸브바디(10)의 개구부(14)를 통해 노출되는 돌출단관부(15)의 상측에 가압볼트(60)가 나사결합되는 나사공(17)이 내외로 관통되어, 돌출단관부(15)의 내부에 1차 결합된 리테이너(50)가 가압볼트(60)에 의해 2차 가압되므로, 리테이너(50)가 돌출단관부(15)에 보다 견고하게 고정된다. 이에 따라, 밸브체(20)의 회전동작에 의해 리테이너(50)가 가압되더라도 정위치가 유지되어 누수가 발생되는 것이 방지된다. 이때, 돌출단관부(15)의 나사공(17)이 밸브바디(10)의 개구부(14)를 통해 노출되므로, 작업자가 가압볼트(60)를 상기 나사공(17)에 용이하게 조일 수 있어 리테이너(50)를 돌출단관부(15)에 보다 간단한 방법으로 좀 더 견고하게 고정시킬 수 있다. 그리고 리테이너(50)의 관통공(51)에 삽입된 결합볼(70)이 푸셔볼트(80)에 의해 돌출단관부(15)의 오목홈(16)에 삽입되어 리테이너(50)가 돌출단관부(15)에 3차 결합되므로, 리테이너(50)가 돌출단관부(15)에 더욱 더 견고하게 고정되어 상기의 효과가 더욱 증대된다.As described above, according to the present invention, the screw hole 17, to which the press bolt 60 is screwed, is passed through the opening end portion 14 of the valve body 10, The retainer 50 which is primarily engaged with the inside of the projecting single pipe portion 15 is secondarily pressed by the press bolt 60 so that the retainer 50 is more firmly fixed to the projecting single pipe portion 15. [ Accordingly, even if the retainer 50 is pressed by the rotation operation of the valve body 20, the correct position is maintained and leakage of water is prevented. At this time, since the screw hole 17 of the projecting single pipe portion 15 is exposed through the opening portion 14 of the valve body 10, the operator can easily tighten the pressure bolt 60 to the screw hole 17 The retainer 50 can be more firmly fixed to the projecting end portion 15 in a simpler manner. The engaging ball 70 inserted into the through hole 51 of the retainer 50 is inserted into the concave groove 16 of the projecting end portion 15 by the pusher bolt 80 so that the retainer 50 is inserted into the projecting end The retainer 50 is more firmly fixed to the projecting end portion 15, so that the above effect is further enhanced.

도 1은 종래 볼밸브의 일례를 도시한 도면
도 2는 본 발명에 따른 볼밸브의 일실시예를 도시한 측단면도
도 3은 상기 실시예의 요부를 보인 분해사시도
도 4는 상기 실시예의 A,B의 확대도
도 5는 상기 실시예의 작동상태도1 is a view showing an example of a conventional ball valve
2 is a side sectional view showing an embodiment of a ball valve according to the present invention.
Fig. 3 is an exploded perspective view showing the main part of the embodiment
4 is an enlarged view of A and B of the above embodiment
Fig. 5 is a diagram showing the operation state of the embodiment

상술한 본 발명의 목적, 특징들 및 장점은 다음의 상세한 설명을 통하여 보다 분명해질 것이다. 이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다.The objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 2 내지 도 5는 본 발명의 일실시예에 따른 볼밸브를 도시한 도면이다. 도시된 바와 같이, 본 발명의 일실시예에 따른 볼밸브는 밸브바디(10)와, 이 밸브바디(10)의 내부에 구비된 돌출단관부(15)와, 상기 밸브바디(10)에 내장된 밸브체(20)와, 이 밸브체(20)에 결합된 작동스템(30)과, 상기 돌출단관부(15)에 설치된 리테이너(50)와, 이 리테이너(50)에 설치된 밸브시트(40)와, 상기 돌출단관부(10)에 나사결합되어 리테이너(50)를 가압하는 가압볼트(60)와, 상기 리테이너(50)에 삽입되는 결합볼(70) 및 푸셔볼트(80)를 포함하여 구성된다. 2 to 5 are views showing a ball valve according to an embodiment of the present invention. As shown in the drawings, the ball valve according to the embodiment of the present invention includes a valve body 10, a protruding end portion 15 provided inside the valve body 10, An operating stem 30 coupled to the valve body 20; a retainer 50 provided on the protruding end tube portion 15; and a valve seat 40 A pressing bolt 60 screwed to the projecting end portion 10 to press the retainer 50 and an engaging ball 70 and a pusher bolt 80 inserted into the retainer 50 .

상기 밸브바디(10)는 주지된 바와 같이 유체가 유입되는 유입유로(11), 유체가 배출되는 배출유로(12) 및 이 배출유로(12)와 유입유로(11)를 연통시키되 유입 및 배출유로(11,12)보다 직경이 확장된 중앙유로(13)가 내부에 형성된다. 그리고 밸브바디(10)의 일측에는 중앙유로(13)와 연통되는 개구부(14)가 형성되며, 이 개구부(14)는 덮개(18)에 의해 개폐된다. The valve body 10 includes an inflow passage 11 through which a fluid flows, a discharge passage 12 through which the fluid is discharged, and a discharge passage 12 communicating with the discharge passage 12 and the inflow passage 11, A central passage 13 having a diameter larger than that of the central passage 13 is formed inside. An opening 14 communicating with the central flow path 13 is formed at one side of the valve body 10 and the opening 14 is opened and closed by a lid 18. [

상기 돌출단관부(15)는 밸브바디(10)의 유입유로(11) 또는 배출유로(12)의 테두리에서 일체로 연장되어 밸브바디(10)의 중앙유로(13)에 위치된다. 이때, 돌출단관부(15)는 유입유로(11)의 테두리에서 연장된 것을 예시하였으며, 밸브바디(10)의 개구부(14)와 근접된 돌출단관부(15)의 상측은 개구부(14)를 통해 외부로 노출되고, 돌출단관부(15)의 하측은 밸브바디(10)와 일체로 이루어진 것을 예시하였다. The protruding end pipe portion 15 extends integrally from the rim of the inflow passage 11 or the discharge passage 12 of the valve body 10 and is positioned at the central passage 13 of the valve body 10. [ The upper end of the protruding end portion 15 extending from the rim of the inflow passage 11 and the protruding end portion 15 adjacent to the opening 14 of the valve body 10 has an opening 14 And the lower side of the protruding single pipe portion 15 is integrally formed with the valve body 10. In this case,

한편, 돌출단관부(15)의 내주면에는 복수개의 오목홈(16)이 원주방향을 따라 이격 형성된다. 그리고 돌출단관부(15)에는 나사공(17)이 내외로 관통되는데, 이 나사공(17)은 밸브바디(10)의 개구부(14)를 통해 노출되도록 돌출단관부(15)의 상측에 형성된다. 한편, 돌출단관부(15)의 내주면에는 상기 리테이너(50)가 장착되도록 단면 니은자 형상으로 이루어져서 원주방향으로 연장된 안착홈(15a)이 형성되며, 이 안착홈(15a)의 내벽면에는 오목홈(16)과 나사공(17)이 형성되고 바닥면에는 상기 밸브시트(40) 및 리테이너(50)의 기단부가 안착된다.On the other hand, a plurality of concave grooves 16 are formed along the circumferential direction on the inner circumferential surface of the projecting single tube portion 15. The screw hole 17 is formed in the upper end of the projecting end portion 15 so as to be exposed through the opening 14 of the valve body 10, do. On the other hand, on the inner circumferential surface of the projecting end portion 15, there is formed a seating groove 15a extending in the circumferential direction so as to be fitted with the retainer 50, A groove 16 and a screw hole 17 are formed and the base end of the valve seat 40 and the retainer 50 is seated on the bottom surface.

상기 밸브체(20)는 밸브바디(10)의 개구부(14)를 통해 중앙유로(13)에 투입 구비되어 유입유로(11) 또는 배출유로(12)를 개폐시키는 것으로, 적어도 일면이 원형의 만곡면(21)으로 이루어져서 상기 밸브시트(40)에 안착된다.The valve body 20 is inserted into the central passage 13 through the opening 14 of the valve body 10 to open or close the inflow passage 11 or the discharge passage 12, (21) and is seated on the valve seat (40).

상기 작동스템(30)은 일단이 밸브체(20)에 결합되고 타단이 밸브바디(10)의 외부로 돌출되어 사용자의 조작에 의해 밸브체(20)를 작동시킨다. 이 작동스템(30)은 밸브바디(10)의 덮개(18)를 관통한다.The operating stem 30 has one end coupled to the valve body 20 and the other end protruding outside the valve body 10 to operate the valve body 20 by user's operation. The actuating stem 30 passes through the lid 18 of the valve body 10.

상기 리테이너(50)는 링 형상으로 이루어져서 돌출단관부(15)의 내주면에 억지끼움 또는 나사결합되는데, 돌출단관부(15)의 안착홈(15a)에 삽입되며 외주면이 돌출단관부(15)의 내주면에 나사결합된 것을 예시하였다. 그리고 밸브바디(10)의 중앙유로(13)와 접하는 리테이너(50)의 선단 내주면에는 밸브체(20)가 상기 밸브시트(40)와 접촉되는 것이 간섭되지 않도록 경사부(52)가 형성된다.The retainer 50 is ring-shaped and is forced or screwed on the inner circumferential surface of the projecting end portion 15. The retainer 50 is inserted into the seating groove 15a of the projecting end portion 15, And screwed on the inner circumferential surface. An inclined portion 52 is formed on the inner peripheral surface of the tip of the retainer 50 in contact with the central passage 13 of the valve body 10 so that the valve body 20 does not interfere with contact with the valve seat 40.

한편, 리테이너(50)에는 상기 결합볼(70) 및 푸셔볼트(80)가 삽입되는 관통공(51)이 형성된다. 이 관통공(51)은 일단이 리테이너(50)의 외주면에 형성되되 돌출단관부(15)의 오목홈(16)과 대응되는 위치에 형성되고, 타단이 리테이너(50)의 선단에 형성되어 도 2와 같이 단면 니은자 형태를 이룬다. 그리고 리테이너(50)의 기단에는 내주면에서 반경방향 외측으로 오목한 삽입홈(53)이 원주방향을 따라 연장되며, 이 삽입홈(53)은 도 와 같이 단면 니은자 형상으로 이루어진다. 이때, 삽입홈(53)의 내벽에는 홈(54)이 형성되며, 이 홈(54)에는 상기 밸브시트(40)가 테프론 재질로 이루어질 경우 밸브시트(40)에 형성된 돌기가 삽입된다.The retainer 50 is formed with a through hole 51 into which the engagement ball 70 and the pusher bolt 80 are inserted. The through hole 51 is formed at one end of the retainer 50 at the position corresponding to the recessed groove 16 of the protruded end portion 15 and formed at the outer peripheral surface of the retainer 50. When the other end is formed at the tip of the retainer 50 2, as shown in Fig. At the base end of the retainer 50, an insertion groove 53 which is recessed radially outward from the inner peripheral surface extends along the circumferential direction, and the insertion groove 53 is formed in a ridge-like shape as shown in the figure. At this time, a groove 54 is formed in the inner wall of the insertion groove 53. When the valve seat 40 is made of Teflon, protrusions formed on the valve seat 40 are inserted into the groove 54.

상기 밸브시트(40)는 링 형상으로 이루어져서 리테이너(50)의 내주면에 설치되어 밸브체(20)의 만곡부(21)가 안착됨에 따라 밸브체(20)와 유입유로(11) 또는 배출유로(12)의 틈새를 밀폐시킨다. 이러한 밸브시트(40)의 선단에는 밸브체(20)의 만곡부(21)가 밀착되도록 경사 또는 만곡진 시트면(41)이 형성된다. 그리고 밸브시트(40)의 두께(t1)는 리테이너(50)의 두께(t2)보다 작게 형성되어, 밸브체(20)가 밸브시트(40)의 내부로 좀 더 유입될 수 있으므로 밸브체(20)와 밸브시트(40) 사이의 틈새를 보다 효과적으로 밀폐시킬 수 있다. 이때, 도 4와 같이 리테이너(50)의 경사부(52)로 인해 밸브체(20)의 만곡면(21)이 밸브시트(40)의 시트면(41)에 밀착될 수 있다.The valve seat 40 is formed in a ring shape so that the valve seat 20 is disposed on the inner peripheral surface of the retainer 50 and the curved portion 21 of the valve body 20 is seated, ). An inclined or curved seat surface 41 is formed at the tip of the valve seat 40 so that the curved portion 21 of the valve body 20 is in close contact with the valve seat 20. Since the thickness t1 of the valve seat 40 is formed to be smaller than the thickness t2 of the retainer 50 and the valve body 20 can be further flowed into the valve seat 40, And the valve seat 40 can be more effectively sealed. At this time, the curved surface 21 of the valve body 20 can be brought into close contact with the seat surface 41 of the valve seat 40 by the inclined portion 52 of the retainer 50 as shown in FIG.

한편, 밸브시트(40)의 기단에는 외주면에서 반경방향 외측으로 돌출되어 리테이너(50)의 삽입홈(53)에 삽입되는 삽입돌기(42)가 원주방향을 따라 연장된다. 이에 따라, 도 2와 같이 밸브시트(40)가 리테이너(50)와 돌출단관부(15)의 안착홈(15a) 사이에 고정되며, 안착홈(15a)과 밸브시트(40) 및 리테이너(50) 사이에 가스켓(91)이 개재된다. 그리고 밸브시트(40)의 기단에는 돌출단관부(15)의 안착홈(15a)과 이격되게 절개된 절개홈(43)이 구비된다. 한편, 밸브시트(40)는 금속으로 이루어져서 리테이너(50)의 홈(54)에 끼워지는 돌기가 별도로 구비되지 않는다.On the other hand, at the base end of the valve seat 40, an insertion protrusion 42 protruding radially outward from the outer circumferential surface and inserted into the insertion groove 53 of the retainer 50 extends along the circumferential direction. 2, the valve seat 40 is fixed between the retainer 50 and the seating groove 15a of the projecting end portion 15, and the seating groove 15a, the valve seat 40, and the retainer 50 A gasket 91 is interposed. The base end of the valve seat 40 is provided with a cutout groove 43 cut away from the seating groove 15a of the projecting single pipe section 15. On the other hand, the valve seat 40 is made of metal and is not provided with a protrusion that is fitted into the groove 54 of the retainer 50.

상기 가압볼트(60)는 돌출단관부(15)의 나사공(17)에 나사결합되어 리테이너(50)의 외주면을 가압한다. 이와 같이, 가압볼트(60)가 레테이너(50)의 외주면을 가압하여 리테이너(50)를 돌출단관부(15)에 더욱 견고하게 고정시킨다.The pressing bolt 60 is screwed into the screw hole 17 of the projecting end portion 15 to press the outer circumferential surface of the retainer 50. Thus, the pressing bolt 60 presses the outer peripheral surface of the retainer 50 to further firmly fix the retainer 50 to the protruding end tube portion 15.

상기 결합볼(70)은 리테이너(50)의 관통공(51)의 일단부에 삽입되고, 상기 푸셔볼트(80)는 리테이너(50)의 관통공(51)의 타단부에 나사결합된다. 도 4와 같이 푸셔볼트(80)가 나사결합됨에 따라 결합볼(70)을 리테이너(50)의 반경방향 외측으로 밀어내므로, 결합볼(70)이 돌출단관부(15)의 오목홈(16)에 삽입된다. 이에 따라, 리테이너(50)가 돌출단관부(15)에 위치 고정되며, 상기 가압볼트(60)에 의해 리테이너(50)가 돌출단관부(15)에 보다 견고하게 고정된다.The engaging ball 70 is inserted into one end of the through hole 51 of the retainer 50 and the pusher bolt 80 is screwed to the other end of the through hole 51 of the retainer 50. The engagement ball 70 pushes the engagement ball 70 outward in the radial direction of the retainer 50 as the pusher bolt 80 is threaded as shown in Fig. ). Thereby, the retainer 50 is fixed to the projecting end portion 15, and the retainer 50 is more firmly fixed to the projecting end portion 15 by the press bolt 60.

이와 같이 구성된 본 발명의 일실시예에 따른 볼밸브는 도 5의 (a)와 같이, 밸브체(20)가 일방향으로 회전되면 그에 접촉되는 밸브시트(40)가 절개홈(43)으로 인해 탄성적으로 변형되면서 가압밀착된 상태를 유지하게 된다. 도 5의 (b)와 같이, 밸브체(20)가 타방향으로 회전되면 밸브시트(40)가 리테이너(50)의 내주면에 접촉지지되어 탄성변형이 제한된다. 이때, 리테이너(50)가 돌출단관부(15)에 1차적으로 끼움 또는 나사결합되고 가압볼트(60)에 의해 2차적으로 가압 즉, 2중으로 보다 견고하게 결합되므로, 밸브체(20)의 회전에 의해 가압되더라도 리테이너(50)가 뒤틀리는 등 돌출단관부(15)의 정위치에서 벗어나는 것이 방지된다. 이에 따라, 리테이너(50)에 장착된 밸브시트(40)도 정위치를 유지하게 되므로 밸브체(20)와의 틈새를 보다 견고히 밀폐시켜 누수가 발생되는 것이 효과적으로 방지된다. 더욱이, 리테이너(50)의 관통공(51)에 삽입된 결합볼(70)이 돌출단관부(15)의 오목홈(16)에 삽입되어 3차적으로 결합되므로, 상기의 효과가 더욱 증대된다. 한편, 가압볼트(60)가 결합되는 나사공(17)이 도 2와 같이 밸브바디(10)의 개구부(14)를 통해 외부로 노출되므로, 작업자는 가압볼트(60)를 보다 용이하게 조일 수 있어 리테이너(50)를 돌출단관부(15)에 간단한 방법으로 견고하게 고정시킬 수 있다. 그리고 밸브시트(40)의 기단부에 절개홈(43)이 형성되어 별도의 탄성작동을 위한 스프링과 같은 부품 없이도 작동이 이루어지므로 부품수가 절감되고 스프링의 부식 및 교체와 같은 작업이 요구되지 않아서 편리하다.5 (a), when the valve body 20 is rotated in one direction, the valve seat 40 which is in contact with the valve body 40 is disengaged by the cutting groove 43, It is maintained in a pressurized state while being deformed sexually. 5 (b), when the valve body 20 is rotated in the other direction, the valve seat 40 is held in contact with the inner peripheral surface of the retainer 50, so that the elastic deformation is limited. At this time, since the retainer 50 is first fitted or screwed to the projecting end portion 15 and is secondarily pressurized, i.e., doubly more firmly engaged by the press bolt 60, rotation of the valve body 20 The retainer 50 is prevented from deviating from the fixed position of the projecting end portion 15 such as twisting. Accordingly, since the valve seat 40 mounted on the retainer 50 also maintains the correct position, the gap between the valve seat 20 and the valve body 20 is more tightly sealed to effectively prevent leakage of water. Further, since the engaging ball 70 inserted into the through hole 51 of the retainer 50 is inserted into the concave groove 16 of the projecting end portion 15 and is thirdarily engaged, the above effect is further enhanced. The screw hole 17 to which the pressing bolt 60 is coupled is exposed to the outside through the opening 14 of the valve body 10 as shown in FIG. 2, so that the operator can more easily tighten the pressing bolt 60 The retainer 50 can be firmly fixed to the projecting end portion 15 in a simple manner. Since the cutout groove 43 is formed at the proximal end of the valve seat 40 so that operation is performed without a separate part such as a spring for elastic operation, the number of parts is reduced and the operation such as the corrosion and replacement of the spring is not required, which is convenient .

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명백할 것이다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

10 : 밸브바디 14 : 개구부
15 : 돌출단관부 17 : 나사공
20 : 밸브체 30 : 작동스템
40 : 밸브시트 50 : 리테이너
60 : 가압볼트 70 : 결합볼
80 : 푸셔볼트10: valve body 14: opening
15: projecting end portion 17:
20: valve body 30: operating stem
40: valve seat 50: retainer
60: pressing bolt 70: engaging ball
80: Pusher bolt

Claims (2)

유체가 유입되는 유입유로(11), 유체가 배출되는 배출유로(12) 및 이 배출유로(12)와 유입유로(11)를 연통시키되 유입 및 배출유로(11,12)보다 직경이 확장된 중앙유로(13)가 내부에 형성되며, 일측에는 중앙유로(13)와 연통되고 덮개(18)에 의해 개폐되는 개구부(14)가 형성된 밸브바디(10);
상기 밸브바디(10)의 유입유로(11) 또는 배출유로(12)의 테두리에서 일체로 연장되어 밸브바디(10)의 중앙유로(13)에 위치되되 상면이 상기 밸브바디(10)의 개구부(14)를 통해 외부로 노출되는 돌출단관부(15);
상기 밸브바디(10)의 개구부(14)를 통해 중앙유로(13)에 내장되고, 상기 유입유로(11) 및 배출유로(12)를 개폐시키는 만곡면(21)이 형성된 밸브체(20);
일단이 상기 밸브체(20)에 결합되고 타단이 상기 밸브바디(10)의 개구부(14) 및 덮개(18)를 통해 외부로 돌출되어 외부조작에 의해 밸브체(20)를 작동시키는 작동스템(30);
상기 돌출단관부(15)에 설치되고, 선단부 내주면에는 상기 밸브체(20)의 만곡면(21)이 접촉되는 시트면(41)이 형성된 밸브시트(40);
내주면에 상기 밸브시트(40)가 장착되고 외주면이 밸브바디(10)의 돌출단관부(15)의 내주면에 결합된 리테이너(50); 및
상기 돌출단관부(15)의 상면에 나사결합되어 리테이너(50)의 외측면을 가압하는 가압볼트(60);를 포함하여 이루어진 것을 특징으로 하는 볼밸브.An inlet flow passage 11 through which the fluid flows, a discharge flow passage 12 through which the fluid is discharged, and a central opening 12 which communicates the outlet flow passage 12 with the inlet flow passage 11, A valve body 10 in which a flow path 13 is formed and a valve body 10 communicating with the central flow path 13 at one side and having an opening 14 opened and closed by a lid 18;
Is integrally extended from the rim of the inflow passage 11 or the discharge passage 12 of the valve body 10 and is positioned at the central passage 13 of the valve body 10, A protruding end tube portion 15 which is exposed to the outside through an opening 14;
A valve body 20 built in the central passage 13 through an opening 14 of the valve body 10 and having a curved surface 21 for opening and closing the inlet passage 11 and the discharge passage 12;
An operating stem (not shown) which is coupled to the valve body 20 at one end and protrudes outside through the opening 14 and the lid 18 of the valve body 10 to operate the valve body 20 by an external operation 30);
A valve seat (40) provided on the projecting end (15) and having a seat surface (41) on which the curved surface (21) of the valve body (20) contacts;
A retainer (50) mounted on the inner circumferential surface of the valve seat (40) and having an outer circumferential surface coupled to an inner circumferential surface of the projecting end portion (15) of the valve body (10); And
And a pressing bolt (60) screwed on the upper surface of the projecting end portion (15) to press the outer surface of the retainer (50). 제1항에 있어서, 상기 돌출단관부(15)의 내주면에는 복수개의 오목홈(16)이 원주방향을 따라 이격 형성되고, 상기 리테이너(50)에는 일단이 밸브바디(10)의 돌출단관부(15)의 각 오목홈(16)과 대응되는 위치에 형성되며 타단이 중앙유로(13)를 향하는 복수개의 관통공(51)이 형성되고, 상기 리테이너(50)의 관통공(51)의 일단부에 삽입되는 결합볼(70)과, 상기 리테이너(50)의 관통공(51)의 타단부에 나사결합되어 상기 결합볼(70)이 밸브바디(10)의 돌출단관부(15)의 오목홈(16)에 삽입된 상태를 유지시키는 푸셔볼트(80)가 더 구비된 것을 특징으로 하는 볼밸브.The valve body (10) according to claim 1, wherein a plurality of recessed grooves (16) are formed on the inner circumferential surface of the projecting end portion (15) A plurality of through holes 51 are formed at positions corresponding to the recessed grooves 16 of the retainer 50 and the other end is directed toward the central flow passage 13, And the engaging ball 70 is screwed to the other end of the through hole 51 of the retainer 50 so that the engaging ball 70 is engaged with the recessed groove 15 of the projecting end portion 15 of the valve body 10, Further comprising a pusher bolt (80) for maintaining the inserted state of the ball valve (16).
KR1020170014938A 2017-02-02 2017-02-02 A ball valve KR101973251B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170014938A KR101973251B1 (en) 2017-02-02 2017-02-02 A ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170014938A KR101973251B1 (en) 2017-02-02 2017-02-02 A ball valve

Publications (2)

Publication Number Publication Date
KR20180090042A true KR20180090042A (en) 2018-08-10
KR101973251B1 KR101973251B1 (en) 2019-04-26

Family

ID=63229742

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170014938A KR101973251B1 (en) 2017-02-02 2017-02-02 A ball valve

Country Status (1)

Country Link
KR (1) KR101973251B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110725966A (en) * 2019-09-02 2020-01-24 苏州纽威阀门股份有限公司 Valve seat assembly and ball valve with same
KR102073821B1 (en) * 2018-08-22 2020-02-05 강인복 3way ball valve for semiconductor equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200287718Y1 (en) 2002-05-25 2002-09-09 한국본산 주식회사 Top Entry V-notched Full Bore Trunnion Flow Characterized Ball Valves
JP2003014138A (en) * 2001-07-02 2003-01-15 Kubota Corp Sealing structure of eccentric butterfly valve
KR101545013B1 (en) * 2014-06-16 2015-08-18 (주)디알밸브 Valve assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003014138A (en) * 2001-07-02 2003-01-15 Kubota Corp Sealing structure of eccentric butterfly valve
KR200287718Y1 (en) 2002-05-25 2002-09-09 한국본산 주식회사 Top Entry V-notched Full Bore Trunnion Flow Characterized Ball Valves
KR101545013B1 (en) * 2014-06-16 2015-08-18 (주)디알밸브 Valve assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102073821B1 (en) * 2018-08-22 2020-02-05 강인복 3way ball valve for semiconductor equipment
CN110725966A (en) * 2019-09-02 2020-01-24 苏州纽威阀门股份有限公司 Valve seat assembly and ball valve with same

Also Published As

Publication number Publication date
KR101973251B1 (en) 2019-04-26

Similar Documents

Publication Publication Date Title
US10753384B1 (en) Suction cup
JPH06341560A (en) Diaphragm valve
JP3861206B2 (en) Fluid controller
US7857286B1 (en) Faucet having leakproof effect
US20030025099A1 (en) Diaphragm valve
EP3464966B1 (en) Valve for a faucet assembly
KR101973251B1 (en) A ball valve
KR830002827B1 (en) Faucet valve with early shut off
US2927767A (en) Valve with seal construction
KR840002180B1 (en) Faucet valve
US7243684B1 (en) Flow dividing device for gardening pipes
US2936154A (en) Water-cook with valve seating and valve body
US2583869A (en) Valve
JP2008185113A (en) Ball valve
US5690312A (en) Faucet control mechanism
US4659060A (en) Stem tip seal
US6869062B2 (en) Valve for discharging fluid from a tank
US3602481A (en) Resilient seat gate valve
US4182372A (en) Mixing valve
JP2565484B2 (en) Valve handle cap
JP2007303538A (en) Gas cock
US3589676A (en) Valve seal
US10054235B2 (en) Control valve for faucet
US5454546A (en) Water faucet mechanism
KR101975897B1 (en) Ball valve having enhanced sealing performance

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant