201107637 六、發明說明： ' 【發明所屬之技術領域】 • 本發明係有關一種藉由使具有閥部的桿朝軸線方向移 位而可控制流通於一組通口（port)間的流體之流量之流量 控制閥。 【先前技術】 以往，已知有一種流量控制閥，例如經由配管連接於 缸筒（cylinder)等流體壓力機器，調整供給至該流體壓力 機器或從該流體壓力機器排出的流體之流量，藉此可控制 該流體壓力機器的動作。 在此流量控制閥中，例如如日本特開2001-141090號 公報所揭露，於形成為直條狀（straight)的筒狀主體的中 央部以與該主體的長邊方向正交的方式安裝有筒狀的閥本 體，於該閥本體内的插通孔以進退自如的方式螺合有節流 閥，該節流閥係用以調整流通於前述主體内的流體之流 量。然後，藉由使節流閥進行進退動作以調整流通於節流 閥與閥本體之間的流體之流量。 一般而言，上述的流量控制閥多設置於與缸筒等流體 壓力機器分離的位置而進行遠端調整，此外，作為連續設 置複數台的分歧管（mani fo 1 d)來使用的情形亦很多。在此 情形中，難以在複數個流量控制閥中辨識欲進行作業的流 量控制閥，此外，由於前述流量控制閥多形成為左右對稱， 因此難以從外觀確認流體的流通方向。 【發明内容】 321480 201107637 本發明的一般目的在於提供一種可確實且容易地確認 流體的流通方向之流量控制閥。 本發明係一種流量控制閥，係使具有閥部之桿朝轴線 方向移位藉此可控制流通於一組通口間之流體的流量，亨 流量控制閥係具備有主體，該主體係具有：前述通口，係 分別設置於一端部及另一端部；以及流路，係供從該通口 所供給的流體流通；於前述主體具備有指向手段，該指向 手段係面向該主體的外部，並僅設置於一組的通口的任一 方侧。 從附圖以及下述實施形態例的說明，可進一步明瞭上 述目的及其他目的、特徵、以及優點。 【實施方式】 如第1圖至第5圖所示，流量控制閥1〇係包含有：主 體丨6，係具有用以供給/排出流體之第一及第二通口 a、 14，閥機構18，係設置於前述主體16的中央部，控制從 二述第通口 12朝第二通孔14流通的壓力流體（例如壓縮 氣體）的机通狀態，以及手柄（handle)2Q，係用以手動控制 由剛述閥機構18所造成之壓力流體的流量。第4圖係顯示 藉由構成閥機構18之針閥（needie valve)54(容後所述） 遮斷第通口 12與第二通孔14之連通的全閉狀態。 、主體16係具有：第-圓筒部22，係延伸於一直線上； =及第―®筒部24 ’錢接於沿著該第-11筒部22的軸 向之大致中央部；前述第二圓筒部24係以與第一圓筒 的轴線JL交之方式接合至第―圓筒部22，且以預定 321480 4 201107637 高度朝上方延伸。於該第― 連接部位附近以與該第一圓二f與第-51同部24的 的螺栓插通之-對安褒部4 控制閥10練= (未圖示）而固定至未圖示之其他裝置 ⑽ 安裝舰設置有板部28，該板部28係從 向)延伸二板一圓筒部22的-端部側(箭頭A方 ㈣成的大致矩形狀的平面狀，且從安 ::朝離去方向(箭頭A方向)緩緩地朝下方傾斜。詳 ^之二 1Γ8的；端部係以與安裝部施的上部相同高 二兮/ Γ ’另一端部係位於第一圓筒部22的上部，並 "一圓筒部22济彎折（參照第2圖及第4圖）。換言 t二$ 28 _成為僅—端部侧被安裝部26a支持的單側 叉得狀。 此外，於板部28的—端部側之面向第-圓筒部22之 下面側形成有切口為剖面三角形狀的切口部別。該切口部 9係设置於接近安裝部服之位置。並且，例如以能從上 辨識之方式於板部28的上表面貼附個體識別用的標藏 =bel ’未圖不）等。此外’亦可不對板部μ貼附標藏， 而疋直接將用以識別個體的號碼等書寫於板部28。 於第-圓筒部22的-端部開口有用以導入壓力流體 第I 12，於另一端部則開口有用以排出前述壓力流 體之第一通口 14。言材（tub〇31a、31b係分別經由安裝於 321480 5 201107637 該第一及第二通口 12、14的開口部之連接單元30a、30b 而連接至第一及第二通口 12、14。 亦即，例如從未圖示的壓力流體供給源通過管材31a 所供給的壓力流體係被導入至第一通口 12，且流通於前述 主體16内的壓力流體係通過連接於前述第二通口 14之管 材31b而供給至其他流體壓力機器（例如缸筒）。 此外，於第一圓筒部22的侧部，亦即於形成為剖面圓 形狀的該第一圓筒部22的外周面設置凹陷而形成為大致 平面狀的凹部32。該凹部32係設置於第二圓筒部24及安 裝部26a的下方之位置，而形成為與第一圓筒部22的軸線 大致平行，且形成為具有預定面積之大致長方形形狀。並 且，能於凹部32書寫例如JIS(Japanese Industrial Standard ;日本工業標準）記號等，藉此可從外部辨認流量 控制閥10中的流體的流通方向。 亦即，由於凹部32係在從上方觀看主體16時僅設置 於將第二圓筒部24作為中心的第一圓筒部22的一方的侧 面側，而未設置於另一方的側面側，因此能藉由該凹部32 的位置簡便地確認流量控制閥10的設置方向以及通過該 流量控制閥10而流通的流體的流通方向。 另一方面，於第一圆筒部22的内部分別形成從第一及 第二通口 12、14沿著軸線方向（箭頭A、B方向）延伸之第 一及第二通路33、34，並於前述第一通路33與第二通路 34之間形成連通室36。於該第一及第二通路33、34係分 別裝設有接近連接單元30a、30b之環狀的襯墊（packing) 6 321480 201107637 38,且於鄰接該襯墊38的位置分別裝設環狀的間隔物4〇。 此外，間隔物40係卡合至形成於第—及第二通路33、 34的^又差部，其朝第一圓筒部22的中央側之移動係被限 制而被定位，且亦藉由該間隔物40限制連接於該間隔物 40的襯墊38之移動而予以定位。並且，從第一及第二通 口 12、14插入的管材31a、31b的外周面係抵接襯墊38， 防止通過該管材31a、31b的外周侧之壓力流體朝外部漏 出。 此外，於第一通路33的端部設置有與該第一通路33 的延伸方向（箭頭A、B方向）正交且面向連通室36之第一 壁部42，並經由於前述第一壁部42與第一通路33的内壁 面間所開口的連通通路44a而與連通室36連通。同樣地， 於第二通路34的端部設置有與該第二通路34的延伸方向 正交且面向連通室36之第二壁部46，並經由於前述第二 壁部46與第二通路34的内壁面間所開口的連通通路44b 而與連通室36連通。 此外’第一壁部42係在第一通路33的内部中從下方 朝上方延伸，在該第一通路33中連通通路44a係形成於上 方’而第二壁部46係在第二通路34的内部中從上方朝下 方延伸’在該第二通路34中連通通路44b係形成於下方 亦即，第一通路33中的連通通路44a與第二通路34 中的連通通路44b係以沿著與第一圓筒部22的軸線正交的 方向彼此錯開之方式形成。 連通室36係與第二圓筒部24形成於同轴上，且其内 32148ο 7 201107637 部係插入閥機構18的一部分。 第一圓筒部24係朝上方開口，其内部係形成為使得用 以裝3又閥機構18的裝設孔4 8係朝垂直方向延伸，前述裝 設孔48係與第一圓筒部22的連通室36連通。亦即，裝設 孔48係以與第一圓筒部22的連通室36位於同軸上之方式 形成。 閥機構18係包含：閥固持具50，係壓入至第二圓筒 部24的裝设孔48 ;筒狀的座環（seat ring)52，係裝設於 前述閥固持具50的下部；以及針閥54，係插通至前述閥 固持具50與座環52的内部，並朝軸線方向（箭頭c、d方 向）移位。 —閥固持具5G係形成為圓筒狀，且於外周面以彼此距離 預定間隔之方式形成一組凸部H —方的凸部咖 係例如由内螺紋構件（r〇ulette)所構成，藉由卡合 孔48的溝部而停止相對於第二圓筒部24之旋轉’且另一 卡*至另—溝部，藉此阻止通過前述裝設 具m5G間的㈣流體的漏出。此時，闊固持 方式裝設。^係叫微比第二圓筒部24的上端部突出之 的保=^^==部形成朝半㈣方向猶微縮徑 且於刖迷保持部58的上端邻厂 端部的鉤（h。。咖（容後所述）係插人並;上 32J480 8 201107637 60。藉此，於閥固持具5〇 此外，保持部58的下端 50的軸線正交的平面狀。池係形成為與閥固持具 η W、D H 的内部，沿著軸線方向（青 β以疋直徑形成使針閥54插通的閥孔62， 並於該闊孔62的上端邻机番^丨< 士 U ^ @ 置刻科母螺紋的第一螺紋奇 64 °此外，第一螺紋部64传卜 " 係比閥孔62的内周徑稍微朝4 偟内方向縮徑而形成。 二衣52係例如以金屬製的薄板材藉由衝壓成形㈣ 士、i置於連通t 36的内部。該座環52係由下述者月 構成·大控部68 ’係形成於上端部，並連接至閥固持呈50 小控部70 ’係形成於下端部，並承置針閥54 ;以及中間奇 72 ’係形成於前述大#部⑽與小徑部7()之間；前述大# 部68係以最大的直徑所形成，前述中間部72係以比㈣ ^部68還縮徑的小直徑所形成，前述小徑部7G係以tt 别述中間部72還縮徑的直徑所形成。 亦即’座環5 2係、以從上端部朝下端部階段性縮徑之方 式形成。此外，上述大徑部68、中間部72、以及小徑部 70係以位於同軸上之方式形成。 ρ於大徑部68的上端部形成以預定角度朝半徑内方向 彎=的鉤66，當以覆蓋閥固持具50的保持部58之方式壓 =刖述大徑部68時，鉤66係卡合至環狀溝6〇，且該保持 58的下&。卩係抵接至設置於前述大徑部68與中間部' π 的父界部位的階梯部（抵接部）74。階梯部74係相對於大徑 321480 9 201107637 上的端 =㈣待时向料成直角，越合至令間部 階梯Π!!環52妓朗轉具5Q __8時， =Γ: 保持部58的端部而被卡住，且沿著 =具50的軸線方向(箭頭C、D方向)被定位 於中間部72，以與座環52的軸 ，數個一)連·=:::= =二與:部。該連通通路76係沿著中間部72的周方向 等㈣分離形成。該連通通口 ： 環52時同時形成。換言之 衝[成㈣成座 另外設置其他的加工步驟。為了形成連通通口 76而 ==部7G形成有在其射間部72 =:二且用以承置針閥54之承置部7^ :下^形成朝半徑外方向擴徑的凸緣80。接 ^的外周㈣設由橡膠等彈性材料所構成的 ==82 ’於該密封構件82的㈣面形成朝上 通^6内 定角度傾斜的肋84，該肋84係在連 、至36内为別抵接至第一壁部42與第二壁部46。 如此’在連通室36内，通過座環Μ的外周側與第一 遮_^=42、，間的愿力流體的流通係被密封構件82 與小徑部70’^於密封構件82係被保持於成為中間部72 以不^朝I由^方H部位之段差部與凸緣80之間，因此係 軸、、泉方向(前頭C、D方向)移位之方式被定位。 f 54係由沿著輪線方向（箭頭c、d方向）具有預定 321480 10 201107637 .^ =所構成’且針闕54的上端部係比閥固持具5。 k㈣部24_的上端部還突出於上方，並連結有 針閥54的外周面於上端部附近形成刻設有螺 6的^-螺紋部86 ’並4合至闕固持具Μ的第一螺紋部 即，經由手柄別使針閥54旋轉，藉此使該針間54 。閥固持具50的螺合作用下沿著轴線方向(箭頭C 向）進行進退動作。 另-方面’於針閥54的下端部形成朝前端緩緩縮徑之 ，制。⑽，該控制部88係自由插通至座環52的小徑部 7〇。該控制部88係具有設置於最前端的第一控制面卯盥 形成於該第一控制面90上方的第二控制面92。盘第二控 制面9 2相比，第-控制面9 〇係以相對於針闕5 4的轴線白: 傾斜角度較大之方式來設定。 並且，針閥54係從第i圖所示的狀態朝上方移位，且 第二控制面92係從座環的承置部78分離，藉此，壓力流 體係通過前述承置部78與第二控制面92之間而從座環 中的中間部72朝小徑部7〇側流通。 此外，於控制部88的上部形成比該控制部⑽還擴徑 的止動部（st〇PPer)94,裝設於前述止動部94的外周面的 〇型環96係怪常地滑接於閥固持具5〇中的間孔62的内周 面。如此’藉由0型環96阻止導入至座環52的内部的壓 力流體通過閥孔62朝外部漏出。 #在針閥54沿著軸線方向移位時，止動部94的上端沿 著閥固持具50的閥孔62移位後抵接至朝半.徑内方向突出 321480 11 201107637 的第一螺紋部64的下端部，藉此規制朝上方（箭頭D方向） 的移位，而前述止動部94的下端部係抵接至座環52中的 小徑部70與中間部72的交界部，藉此規制朝下方（箭頭C 方向）的移位。 此外，於構成主體16之第二圓筒部24的上方，以與 該第二圓筒部24位於同軸上之方式設置鎖定螺帽 (locknut)98,針閥54的第二螺紋部86係螺合至前述鎖定 螺帽98的中央。於是，使該針閥54螺旋轉動，使其移位 至使流通於主體16内部的壓力流體成為期望流量的位置 後，使鎖定螺帽98螺旋轉動而移位至抵接至閥固持具50 的上端部為止的位置，藉此規制前述針閥54的旋轉移位， 故可維持由該針閥54所進行的流量控制的狀態。 本發明的實施形態的流量控制閥10基本上係為上述 的構成，接著，說明其動作及作用效果。在此，如第1圖 所示，係將構成閥機構18之針閥54在手柄20的旋轉作用 下下降而藉由前述針閥54遮斷第一通口 12與第二通口 14 的連通的全閉狀態作為初始狀態予以說明。 在該初始狀態中，壓力流體係通過管材31a供給至第 一通口 12，並通過連通通路44a供給至連通室36内。此 外，藉由設置在座環52的外周側的密封構件82，防止導 入至連通室36内的壓力流體會通過該座環52的外周側流 通至成為下游側的第二通口 14側。接著，未圖示的作業者 係使鎖定螺帽98螺旋轉動而朝上方移動，解除限制針閥 54的旋轉移位的狀態後，抓持手柄20並使手柄20旋轉， 12 321480 201107637 • 藉此，針閥54係在與閥固持具50的螺合作用下一邊旋轉 一邊朝上方（箭頭D方向）移位。 藉此，針閥54係從控制部88的第二控制面92抵接在 承置部78的狀態下緩緩地從該承置部分離，第二控制 面92與前述承置部78之間的間隙緩緩地擴大。接著，導 入至連通室36内的壓力流體係從座環52的連通通口 76流 通至該座環52的内部，並通過針閥54的控制部88與承置 部78之間而朝小徑部70側（箭頭C方向）流通。此時，壓 力流體係被控制成與針閥54的控制部88及承置部78間的 間隙大小成比例的流量。該壓力流體從連通室36内通過連 通通路44b朝第二通路34流通後，以期望的流量通過連接 至第二通口 14的管材31b而流通至其他的流體壓力機器。 亦即，沿著針閥54的軸線方向（箭頭c、D方向）的移 位量與通過連通室36朝第二通口 14側流通的壓力流體的 流量係成比例。換言之，藉由控制針閥54的移位量來控制 壓力流體的流量。 $ 此外，繼續使手柄20旋轉，直至針閥54的第一控制201107637 VI. Description of the Invention: 'Technical Fields According to the Invention>> The present invention relates to a flow rate of a fluid which is circulated between a group of ports by shifting a rod having a valve portion in the axial direction. Flow control valve. [Prior Art] Conventionally, a flow control valve has been known which is connected to a fluid pressure device such as a cylinder via a pipe, and adjusts a flow rate of a fluid supplied to or discharged from the fluid pressure device. The action of the fluid pressure machine can be controlled. In the flow control valve, for example, as disclosed in Japanese Laid-Open Patent Publication No. 2001-141090, the central portion of the tubular body formed in a straight shape is attached so as to be orthogonal to the longitudinal direction of the main body. The tubular valve body has a throttle valve that is screwed in and out of the valve body to adjust the flow rate of the fluid flowing through the body. Then, the flow rate of the fluid flowing between the throttle valve and the valve body is adjusted by advancing and retracting the throttle valve. In general, the flow control valve described above is often disposed at a position separated from a fluid pressure device such as a cylinder tube to perform remote adjustment, and is also used as a manifold (mani fo 1 d) in which a plurality of stages are continuously provided. . In this case, it is difficult to identify the flow rate control valve to be operated in a plurality of flow rate control valves, and since the flow rate control valve is often formed to be bilaterally symmetrical, it is difficult to confirm the flow direction of the fluid from the appearance. SUMMARY OF THE INVENTION 321480 201107637 A general object of the present invention is to provide a flow control valve that can reliably and easily confirm the flow direction of a fluid. The present invention relates to a flow control valve for displacing a rod having a valve portion in an axial direction to control a flow rate of a fluid flowing between a plurality of ports, the heng flow control valve having a body having a main body The through ports are respectively provided at one end portion and the other end portion; and the flow path for circulating a fluid supplied from the through port; wherein the main body is provided with a pointing means facing the outside of the main body; It is only placed on either side of a set of ports. The above object and other objects, features and advantages will be made apparent from the accompanying drawings and claims. [Embodiment] As shown in Figs. 1 to 5, the flow control valve 1 includes a main body 6 having first and second ports a, 14 for supplying/discharging fluid, and a valve mechanism 18 is disposed at a central portion of the main body 16, controls an operating state of a pressurized fluid (for example, compressed gas) flowing from the first through port 12 toward the second through hole 14, and a handle 2Q is used to The flow of pressure fluid caused by the valve mechanism 18 is manually controlled. Fig. 4 is a view showing a fully closed state in which the communication between the first port 12 and the second through hole 14 is interrupted by a needle valve 54 (described later) constituting the valve mechanism 18. The main body 16 has a first cylindrical portion 22 that extends on a straight line, and a first tubular portion 24 that is connected to a substantially central portion along the axial direction of the first -> tubular portion 22; The two cylindrical portion 24 is joined to the first cylindrical portion 22 so as to intersect the axis JL of the first cylinder, and extends upward at a predetermined height of 321480 4 201107637. In the vicinity of the first connection portion, the bolts that are inserted into the first circle 2f and the -51 same portion 24 are inserted into the ampule portion 4 control valve 10 (not shown) and are fixed to not shown. Other devices (10) The mounting ship is provided with a plate portion 28 which extends from the end side of the two-plate-one cylindrical portion 22 (arrow A side (four) into a substantially rectangular planar shape, and is: : The direction of the departure (arrow A direction) is gradually inclined downwards. The details are 2 to 8; the end is the same as the upper part of the mounting part. The other end is located in the first cylindrical part. The upper part of 22 and the "one cylindrical portion 22" are bent (refer to Figs. 2 and 4). In other words, t 2 $ 28 _ becomes a one-side fork shape supported only by the mounting portion 26a on the end side. A slit portion having a slit having a triangular cross section is formed on the lower surface side of the end portion of the plate portion 28 facing the first cylindrical portion 22. The slit portion 9 is provided at a position close to the mounting portion. The identification for individual identification = bel 'not shown" or the like is attached to the upper surface of the plate portion 28 so as to be recognizable from above. Further, the plate portion μ may not be attached to the plate portion, and the number for identifying the individual or the like is directly written on the plate portion 28. The end opening of the first cylindrical portion 22 is used to introduce the pressure fluid No. 12, and the other end portion is opened to discharge the first port 14 of the pressure fluid. The materials (tubs 31a and 31b) are connected to the first and second ports 12 and 14 via connection units 30a and 30b attached to the openings of the first and second ports 12 and 14 of 321480 5 201107637, respectively. That is, for example, a pressure flow system supplied from a pressure fluid supply source (not shown) through the pipe 31a is introduced into the first port 12, and a pressure flow system flowing through the body 16 is connected to the second port. The tube 31b is supplied to another fluid pressure device (for example, a cylinder). Further, the side portion of the first cylindrical portion 22, that is, the outer peripheral surface of the first cylindrical portion 22 formed in a circular cross section is provided. The concave portion 32 is formed in a substantially planar shape by being recessed. The concave portion 32 is provided at a position below the second cylindrical portion 24 and the mounting portion 26a, and is formed substantially parallel to the axis of the first cylindrical portion 22, and is formed as A substantially rectangular shape having a predetermined area is formed, and a JIS (Japanese Industrial Standard) symbol or the like can be written in the concave portion 32, whereby the flow direction of the fluid in the flow rate control valve 10 can be recognized from the outside. Since the concave portion 32 is provided only on one side surface side of the first cylindrical portion 22 having the second cylindrical portion 24 as the center when the main body 16 is viewed from above, it is not provided on the other side surface side, and therefore The position of the recessed portion 32 easily confirms the direction in which the flow rate control valve 10 is disposed and the direction in which the fluid flows through the flow rate control valve 10. On the other hand, the first and second portions are formed inside the first cylindrical portion 22, respectively. The two ports 12 and 14 extend along the first and second passages 33 and 34 in the axial direction (arrows A and B), and form a communication chamber 36 between the first passage 33 and the second passage 34. The first and second passages 33, 34 are respectively provided with annular packings 6 321480 201107637 38 which are adjacent to the connecting units 30a, 30b, and are respectively provided with annular intervals at positions adjacent to the spacers 38. Further, the spacer 40 is engaged with the difference portion formed in the first and second passages 33, 34, and the movement toward the center side of the first cylindrical portion 22 is restricted and positioned. The spacer 38 connected to the spacer 40 is also restrained by the spacer 40. The outer peripheral surface of the pipes 31a and 31b inserted from the first and second ports 12 and 14 abuts against the gasket 38 to prevent the pressure fluid passing through the outer peripheral side of the pipes 31a and 31b from leaking to the outside. Further, at the end of the first passage 33, a first wall portion 42 that is orthogonal to the extending direction of the first passage 33 (arrows A and B directions) and faces the communication chamber 36 is provided, and passes through the first wall The communication portion 44a that is open between the portion 42 and the inner wall surface of the first passage 33 communicates with the communication chamber 36. Similarly, a second wall portion 46 orthogonal to the extending direction of the second passage 34 and facing the communication chamber 36 is provided at the end of the second passage 34, and passes through the second wall portion 46 and the second passage 34. The communication passage 44b opened between the inner wall surfaces communicates with the communication chamber 36. Further, the first wall portion 42 extends upward from the lower side in the interior of the first passage 33, in which the communication passage 44a is formed in the upper portion and the second wall portion 46 is attached to the second passage 34. The inner portion extends downward from above. In the second passage 34, the communication passage 44b is formed below, that is, the communication passage 44a in the first passage 33 and the communication passage 44b in the second passage 34 are along the same The directions in which the axes of the cylindrical portions 22 are orthogonal to each other are formed to be shifted from each other. The communication chamber 36 is formed coaxially with the second cylindrical portion 24, and a portion of the inner portion of the valve mechanism 18 is inserted into the portion 32148ο 7 201107637. The first cylindrical portion 24 is open upward, and the inside thereof is formed such that the mounting hole 48 for mounting the valve mechanism 18 extends in the vertical direction, and the mounting hole 48 is coupled to the first cylindrical portion 22 The connecting chambers 36 are connected. That is, the mounting hole 48 is formed to be coaxial with the communication chamber 36 of the first cylindrical portion 22. The valve mechanism 18 includes a valve holder 50 that is press-fitted into the mounting hole 48 of the second cylindrical portion 24; a cylindrical seat ring 52 is attached to the lower portion of the valve holder 50; The needle valve 54 is inserted into the inside of the valve holder 50 and the seat ring 52, and is displaced in the axial direction (arrows c and d). The valve holder 5G is formed in a cylindrical shape, and a plurality of convex portions H are formed on the outer peripheral surface at a predetermined interval from each other, for example, by a female screw member. The rotation of the second cylindrical portion 24 is stopped by the groove portion of the engaging hole 48, and the other card* is moved to the other groove portion, thereby preventing the leakage of the (four) fluid passing between the mounting members m5G. At this time, the wide holding method is installed. ^ is a hook that protrudes slightly from the upper end portion of the second cylindrical portion 24 to form a hook that is slightly reduced in the direction of the half (four) and that is adjacent to the end of the factory at the upper end of the obscuring holding portion 58. The coffee (described later) is inserted into the upper; 32J480 8 201107637 60. Thereby, the valve holder 5 is further arranged in a plane shape in which the axis of the lower end 50 of the holding portion 58 is orthogonal to each other. The inside of the holding tool η W, DH is formed along the axial direction (the cyan diameter is a diameter of the valve hole 62 through which the needle valve 54 is inserted, and is adjacent to the upper end of the wide hole 62.) The first thread of the female thread is oddly 64°, and the first threaded portion 64 is formed by reducing the inner diameter of the valve hole 62 slightly toward the inner direction of the inner diameter of the valve hole 62. The thin plate is formed by press forming (4), i is placed inside the communication t 36. The seat ring 52 is formed by the following month, and the large control portion 68' is formed at the upper end portion and connected to the valve holding 50 The small control unit 70' is formed at the lower end portion and houses the needle valve 54; and the intermediate odd 72' is formed between the large portion (10) and the small diameter portion 7 (); the aforementioned large portion 68 The intermediate portion 72 is formed by a small diameter which is smaller than the (four) portion 68, and the small diameter portion 7G is formed by a diameter which is smaller than the diameter of the intermediate portion 72. The seat ring 5 2 is formed to be gradually reduced in diameter from the upper end portion to the lower end portion. Further, the large diameter portion 68, the intermediate portion 72, and the small diameter portion 70 are formed to be coaxially formed. The upper end portion of the large diameter portion 68 is formed with a hook 66 bent toward the inner side in the radial direction at a predetermined angle. When the large diameter portion 68 is pressed to cover the retaining portion 58 of the valve holder 50, the hook 66 is engaged to the hook portion 66. The annular groove is 6 〇, and the lower portion of the holding 58 is in contact with the step portion (contact portion) 74 provided at the parent portion of the large diameter portion 68 and the intermediate portion 'π. The end on the large diameter 321480 9 201107637 = (4) When the time is right at the right angle, the more the step is to the middle step!! When the ring 52 is turned 5Q __8, =Γ: the end of the holding portion 58 is Jammed, and positioned along the axis direction of the =50 (arrows C, D direction) in the intermediate portion 72, to the axis of the seat ring 52, a number one)) ==:::==2 The communication passage 76 is formed separately along the circumferential direction of the intermediate portion 72 (four). The communication port: is formed simultaneously with the ring 52. In other words, the punching (four) seat is additionally provided with other processing steps. The through port 76 and the == portion 7G are formed with a receiving portion 7 at the intermediate portion 72 =: and for receiving the needle valve 54. The lower portion is formed with a flange 80 which is expanded in the direction of the outer diameter. The outer circumference (4) is made of an elastic material such as rubber ==82', and a rib 84 is formed on the (fourth) surface of the sealing member 82 at an inner angle of the upper passage 6, and the rib 84 is connected in the connection to the 36. To the first wall portion 42 and the second wall portion 46. Thus, in the communication chamber 36, the flow of the force fluid between the outer circumferential side of the seat ring and the first cover is sealed by the sealing member 82 and the small diameter portion 70' of the sealing member 82. It is held in the intermediate portion 72 so as not to be in the direction between the step portion of the portion H and the flange 80, and therefore the system shaft and the spring direction (the front head C and the D direction) are displaced. The f 54 is constituted by a predetermined 321480 10 201107637 . . . in the direction of the wheel line (arrows c and d) and the upper end portion of the butt 54 is a valve holder 5 . The upper end portion of the k (four) portion 24_ is also protruded upward, and the outer peripheral surface to which the needle valve 54 is coupled is formed in the vicinity of the upper end portion to form a threaded portion 86' in which the screw 6 is bored and 4 is coupled to the first thread of the tamping holder Μ That is, the needle valve 54 is rotated by the handle, thereby making the needle chamber 54. The screwing action of the valve holder 50 advances and retreats in the axial direction (arrow C direction). On the other hand, the lower end portion of the needle valve 54 is formed to gradually reduce the diameter toward the front end. (10) The control unit 88 is freely inserted into the small diameter portion 7 of the seat ring 52. The control unit 88 has a second control surface 92 formed on the first control surface 90 at a first control surface provided at the foremost end. The first control surface 9 is set in such a manner that the first control surface 9 is white with respect to the axis of the butt 5 4 : the angle of inclination is large. Further, the needle valve 54 is displaced upward from the state shown in the figure i, and the second control surface 92 is separated from the receiving portion 78 of the seat ring, whereby the pressure flow system passes through the receiving portion 78 and the Between the two control surfaces 92, the intermediate portion 72 of the seat ring flows toward the side of the small diameter portion 7 . Further, a stopper portion (st〇PPer) 94 that is larger than the control portion (10) is formed in the upper portion of the control portion 88, and the 〇-shaped ring 96 attached to the outer peripheral surface of the stopper portion 94 is slidably connected The inner circumferential surface of the intermediate hole 62 in the valve holder 5〇. Thus, the pressure fluid introduced into the seat ring 52 is prevented from leaking to the outside through the valve hole 62 by the 0-ring 96. # When the needle valve 54 is displaced in the axial direction, the upper end of the stopper portion 94 is displaced along the valve hole 62 of the valve holder 50 and abuts against the first thread portion of the 321480 11 201107637 protruding in the half-diameter direction. The lower end portion of the 64 is configured to regulate the upward movement (the direction of the arrow D), and the lower end portion of the stopper portion 94 abuts against the boundary portion between the small diameter portion 70 and the intermediate portion 72 in the seat ring 52, This regulation shifts downward (in the direction of arrow C). Further, a lock nut 98 is provided above the second cylindrical portion 24 constituting the main body 16 so as to be coaxial with the second cylindrical portion 24, and the second thread portion 86 of the needle valve 54 is screwed. It is brought to the center of the aforementioned lock nut 98. Then, the needle valve 54 is spirally rotated to be displaced to a position where the pressure fluid flowing inside the main body 16 becomes a desired flow rate, and then the lock nut 98 is spirally rotated and displaced to abut against the valve holder 50. The position of the upper end portion regulates the rotational displacement of the needle valve 54, thereby maintaining the state of the flow rate control by the needle valve 54. The flow rate control valve 10 according to the embodiment of the present invention basically has the above configuration, and the operation and effects thereof will be described next. Here, as shown in Fig. 1, the needle valve 54 constituting the valve mechanism 18 is lowered by the rotation of the handle 20, and the communication between the first port 12 and the second port 14 is blocked by the needle valve 54. The fully closed state is explained as an initial state. In this initial state, the pressure flow system is supplied to the first port 12 through the pipe 31a, and is supplied into the communication chamber 36 through the communication passage 44a. Further, by the seal member 82 provided on the outer peripheral side of the seat ring 52, the pressure fluid introduced into the communication chamber 36 is prevented from flowing through the outer peripheral side of the seat ring 52 to the second port 14 side which is the downstream side. Next, the operator (not shown) moves the lock nut 98 in a spiral direction and moves upward, and releases the state in which the rotation of the needle valve 54 is restricted, and then grips the handle 20 and rotates the handle 20, 12 321480 201107637 • The needle valve 54 is displaced upward (in the direction of the arrow D) while being rotated by the screwing of the valve holder 50. Thereby, the needle valve 54 is gradually separated from the receiving portion from the second control surface 92 of the control portion 88 in contact with the receiving portion 78, and between the second control surface 92 and the receiving portion 78. The gap is slowly expanding. Then, the pressure flow system introduced into the communication chamber 36 flows from the communication port 76 of the seat ring 52 to the inside of the seat ring 52, and passes between the control portion 88 of the needle valve 54 and the receiving portion 78 toward the small diameter. The portion 70 (in the direction of the arrow C) flows. At this time, the pressure flow system is controlled to a flow rate proportional to the gap size between the control portion 88 of the needle valve 54 and the receiving portion 78. The pressure fluid flows from the communication chamber 36 through the communication passage 44b toward the second passage 34, and then flows to the other fluid pressure device through the pipe 31b connected to the second port 14 at a desired flow rate. That is, the displacement amount along the axial direction of the needle valve 54 (the directions of the arrows c and D) is proportional to the flow rate of the pressure fluid flowing through the communication chamber 36 toward the second port 14 side. In other words, the flow rate of the pressure fluid is controlled by controlling the amount of displacement of the needle valve 54. In addition, the handle 20 is continuously rotated until the first control of the needle valve 54
另一方面K吏壓力流體的流量減少的情形中，使手 9 2傾斜角度係設定成較大。 使針閥54沿著閥固 —此’由於控制部88 柄20朝與前述方向相反的方向旋轉，使針 持具50朝下方（箭頭c方向）移動。藉此， 321480 13 201107637 與承置部78接近，該控制部88與承置部78間的間隙緩緩 地變小，因此減少通過該間隙朝下游側流通的壓力流體的 流1。接著，使手柄20進一步旋轉，藉由使針閥54中的 止動部94的下端部抵接至承置部78而限制該針閥54朝下 方的移動，而成為控制部88的第二控制面92抵接至前述 承置部78的全閉狀態。 如此，在流量控制閥1〇中被控制成期望流量的流體係 從第二通口 14經由管材31b供給至其他的流體壓力機器， 並控制該流體壓力機器的動作。 如上所述，在本實施形態中，係構成為於成為主體16 的上方之位置设置平面狀的板部28，並僅將該板部28設 置於刖述主體16的一端部侧。如此，可藉由板部28確實 且容易地從外部確認流量控制閥1〇的一端部側及另一端 部側，從而能確認流通於該流量控制閥1〇的内部的流體的 流通方向。 此外，由於能藉由板部28確認流量控制閥10中的流 體的流通方向，因此在設置該流量控制閥1〇時能避免以錯 誤的設置方向設置。亦即，板部28係作為可確認流量控制 閥10的设置方向及流體的流通方向之指向手段而發揮功 能。 此外，藉由在該板部28的上表面貼附例如個體識別用 的標籤等，即使在流量控制閥1〇與其他的流量控制閥共同 被分歧管化來使用的情形中，亦能確實且容易地確認期望 的·流量控制閥10，而為適宜。 321480 14 201107637 田於將板部28形成為車％# lL ^ L 別:的:籤等時，該標籤等不易剝離而適合 該標籤的==::藏等^ 狀。 狀心之方式形成為平面狀，而非形成為曲面 ;第-圓筒部22的侧部設置從外周面凹陷 、nk 、凹。卩32，因此藉由確認該凹部32的位置而於 二卜ST二簡便地確認流量控制閥1()的設置方向“ 通於該Μ控制閥10的内部的流體的流通方向。 此外’例如在將流量控制閥1〇設置於固持具或壁部 狹窄的場所之情形中，有接觸設置於第—圓筒部22上方的 板部28而難以設置之情形。即使在此種情形中，如第6圖 所不，作業者係抓持板部28的另—端部，並以將切口部 29作為支點之方式使該另一端部側朝上方轉動推壓，藉此 前述板部28係從前述切口部29破斷彎折。如此，能使板 部28簡單地從主體16脫離，而可將拆下該板部找的流量 控制閥10設置在期望的位置。 本發明的流量控制閥並未限定於上述實施形態，在未 逸離本發明的要旨下，當然可採用各種構成。 【圖式簡單說明】 第1圖係本貫施形態的流量控制閥的外觀斜視圖。 第2圖係第1圖所示的流量控制閥的外觀側面圖。 第3圖係第1圖所示的流量控制閥的外觀平面圖。 第4圖係第1圖所示的流量控制閥的整體縱剖面圖。 321480 15 201107637 、閥固 第5圖係顯示構成第1圖的流量控制閥之針間 持具、以及座環附近的擴大剖面圖。 第β圖係顯示第2圖的流量控制閥中將切口部 點並使板部朝上方彎折的狀態之外觀侧面圖。 為支 【主要元件符號說明】 10 流量控制閥 14 第二通口 18 閥機構 22 第一圓筒部 26a、 26b安裝部 28 板部 30a、 30b連接單元 32 凹部 34 第二通路 38 襯塾 42 第一壁部 46 第二壁部 50 閥固持具 54 針閥 58 保持部 60 環狀溝 64 第一螺紋部 68 大徑部 72 中間部 12 第一通口 16 主體 20 手柄 24 第二圓筒部 27 孔部 29 切口部 31a、31b 管材 33 第一通路 36 連通室 40 間隔物 44a、44b連通通路 48 裝設孔 52 座環 56a、56b 凸部 58a 下端面 62 閥孔 66 釣 70 小徑部 74 階梯部 32]48〇 16 201107637 76 連通通口 78 承置部 80 凸緣 82 密封構件 84 肋 86 第二螺紋部 88 控制部 90 第一控制面 92 第二控制面 94 止動部 96 0型環 98 鎖定螺帽 17 321480On the other hand, in the case where the flow rate of the K 吏 pressure fluid is reduced, the inclination angle of the hand 9 2 is set to be large. The needle valve 54 is fixed along the valve. This is because the handle portion 20 of the control portion 88 is rotated in a direction opposite to the above direction, and the needle holder 50 is moved downward (in the direction of the arrow c). Thereby, 321480 13 201107637 is close to the receiving portion 78, and the gap between the control portion 88 and the receiving portion 78 is gradually reduced. Therefore, the flow 1 of the pressure fluid flowing through the gap toward the downstream side is reduced. Next, the handle 20 is further rotated, and the lower end portion of the stopper portion 94 in the needle valve 54 abuts against the receiving portion 78 to restrict the movement of the needle valve 54 downward, thereby becoming the second control of the control portion 88. The surface 92 abuts to the fully closed state of the above-described receiving portion 78. Thus, the flow system controlled to a desired flow rate in the flow control valve 1 is supplied from the second port 14 to the other fluid pressure device via the pipe 31b, and the operation of the fluid pressure machine is controlled. As described above, in the present embodiment, the flat plate portion 28 is provided at a position above the main body 16, and only the plate portion 28 is provided on the one end side of the main body 16. In this way, the one end side and the other end side of the flow control valve 1A can be surely and easily confirmed from the outside by the plate portion 28, and the flow direction of the fluid flowing through the inside of the flow rate control valve 1 can be confirmed. Further, since the flow direction of the fluid in the flow rate control valve 10 can be confirmed by the plate portion 28, it is possible to avoid the setting in the wrong installation direction when the flow rate control valve 1 is provided. In other words, the plate portion 28 functions as a pointing means for confirming the direction in which the flow rate control valve 10 is disposed and the flow direction of the fluid. Further, by attaching, for example, a tag for individual identification to the upper surface of the plate portion 28, even when the flow rate control valve 1 is used in combination with another flow rate control valve, it can be surely It is suitable to easily confirm the desired flow control valve 10. 321480 14 201107637 Tian Yu formed the board part 28 as a car %# lL ^ L No: When the sign is etc., the label or the like is not easily peeled off and is suitable for the label ==:: hiding or the like. The centroid is formed in a planar shape instead of being formed into a curved surface; the side portion of the first cylindrical portion 22 is provided with a recessed surface, nk, and concave from the outer peripheral surface.卩32, therefore, by confirming the position of the recess 32, it is easy to confirm the direction in which the flow control valve 1 () is disposed in the flow direction of the fluid passing through the inside of the helium control valve 10 in the second step ST2. When the flow control valve 1 is installed in a place where the holder or the wall portion is narrow, there is a case where it is difficult to provide contact with the plate portion 28 provided above the first cylindrical portion 22. Even in this case, as in the case In the figure, the operator grips the other end portion of the plate portion 28, and presses the other end portion side upward by using the notch portion 29 as a fulcrum, whereby the plate portion 28 is from the foregoing The notch portion 29 is broken and bent. Thus, the plate portion 28 can be easily detached from the main body 16, and the flow control valve 10 that has been removed from the plate portion can be placed at a desired position. The flow control valve of the present invention does not The present invention is not limited to the above-described embodiments, and various configurations can of course be employed without departing from the scope of the invention. [FIG. 1] FIG. 1 is a perspective view showing the appearance of a flow control valve of the present embodiment. 1 side view of the flow control valve shown in the figure Fig. 3 is a plan view showing the flow control valve shown in Fig. 1. Fig. 4 is an overall longitudinal sectional view of the flow control valve shown in Fig. 1. 321480 15 201107637, and Fig. 5 shows the first structure. The needle-holding device of the flow rate control valve of the figure and the enlarged cross-sectional view of the vicinity of the seat ring. The figure β shows the appearance side of the state in which the slit portion is bent and the plate portion is bent upward in the flow control valve of Fig. 2 Fig. [Main component symbol description] 10 flow control valve 14 second port 18 valve mechanism 22 first cylindrical portion 26a, 26b mounting portion 28 plate portion 30a, 30b connecting unit 32 recess 34 second passage 38 lining 42 First wall portion 46 Second wall portion 50 Valve holder 54 Needle valve 58 Holding portion 60 Annular groove 64 First thread portion 68 Large diameter portion 72 Intermediate portion 12 First port 16 Main body 20 Handle 24 Second cylinder Portion 27 hole portion 29 notch portion 31a, 31b pipe 33 first passage 36 communication chamber 40 spacers 44a, 44b communication passage 48 mounting hole 52 seat ring 56a, 56b convex portion 58a lower end surface 62 valve hole 66 fishing 70 small diameter portion 74 steps 32]48〇16 201107637 76 communication port 78 bearing portion 80 flange 82 sealing member 84 rib 86 second thread portion 88 control portion 90 first control surface 92 second control surface 94 stop portion 96 0 ring 98 locking Nut 17 321480