JPH0972815A - Leakage detector - Google Patents
Leakage detectorInfo
- Publication number
- JPH0972815A JPH0972815A JP22646995A JP22646995A JPH0972815A JP H0972815 A JPH0972815 A JP H0972815A JP 22646995 A JP22646995 A JP 22646995A JP 22646995 A JP22646995 A JP 22646995A JP H0972815 A JPH0972815 A JP H0972815A
- Authority
- JP
- Japan
- Prior art keywords
- sealing member
- housing
- leak
- seal ring
- working pressure
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ダイカスト等で鋳
造された製品（被検査部材）にひび割れ鋳巣或いはピン
ホール等の鋳造上の欠陥が有るかどうかを検査するため
のリーク検査器に関し、特に被検査部材に円形環状に形
成されたシールリング溝部のリークを検査するのに好適
なリーク検査器にするものである。ちなみに、シールリ
ング溝部の溝内には、Ｏリングやパッキン（シールリン
グ）又はガスケットなどが設置される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leak inspector for inspecting a product (member to be inspected) cast by die casting or the like, which has a casting defect such as a cracked cavity or a pinhole. In particular, the present invention provides a leak inspector suitable for inspecting a seal ring groove formed in a circular ring shape on a member to be inspected. By the way, an O-ring, packing (seal ring), gasket, or the like is installed in the groove of the seal ring groove portion.
【０００２】[0002]
【従来の技術】この種のシールリング溝部のリークを検
査する場合、従来では図９ないしは図１１に示す方法で
行なっていた。2. Description of the Related Art Conventionally, when inspecting a leak in a seal ring groove of this type, the method shown in FIGS. 9 to 11 has been used.
【０００３】図９に示したものは、シールリング溝部Ｓ
の近傍に形成された流体通路（オイル孔）ｂを利用し、
オイル連通孔ａを開口加工する前に流体通路（オイル
孔）ｂをメクラ栓ｃで密閉した上でその内部に作動圧を
供給することにより、シールリング溝部Ｓからのリーク
（圧洩れ）を検知するものである。この方法によれば、
格別リーク検査器は必要としないが、流体通路（オイル
孔）ｂ近傍のシールリング溝部Ｓ部分しか検知できない
だけでなく、シールリング溝部Ｓの外周部分やサイド部
分に存在する欠陥を発見できない不具合がある。FIG. 9 shows the seal ring groove S.
Utilizing the fluid passage (oil hole) b formed in the vicinity of
A leak (pressure leakage) from the seal ring groove S is detected by sealing the fluid passage (oil hole) b with a blind plug c before supplying the oil communication hole a and then supplying an operating pressure to the inside. To do. According to this method
Although a special leak inspection device is not required, there is a problem that not only the seal ring groove S portion near the fluid passage (oil hole) b can be detected but also defects existing in the outer peripheral portion and the side portion of the seal ring groove S cannot be detected. is there.
【０００４】また、図１０及び図１１に示したものは、
リング状又は板状に形成した弾性部材ｄをシールリング
溝部Ｓの外周に巻き付けると共に締付けバンドｅで締め
付けてシールするようにしたものである。この方法によ
れば、オイル連通孔ａを開口加工した後にシールリング
溝部Ｓ全周のリーク（圧洩れ）を検知することができる
が、締付けバンドによるシールのため安定したシール性
能が得にくいだけでなく、シール性を上げようとして締
付けバンドを過剰に締め付けることが多くなるために耐
久性に乏しく、しかもシールリング溝部へのセット及び
取り外しの作業性が悪いと共に、シールリング溝部への
セットに際して被検査部材の形状による制約が多い不具
合がある。The ones shown in FIGS. 10 and 11 are
A ring-shaped or plate-shaped elastic member d is wound around the outer periphery of the seal ring groove S and is tightened with a tightening band e to seal. According to this method, it is possible to detect a leak (pressure leakage) around the entire circumference of the seal ring groove S after forming the oil communication hole a, but it is difficult to obtain stable sealing performance due to the sealing by the tightening band. However, the tightening band is often tightened excessively to improve the sealing performance, resulting in poor durability and poor workability in setting and removing in the seal ring groove, and inspecting when setting in the seal ring groove. There are many restrictions due to the shape of the members.
【０００５】[0005]
【発明が解決しようとする課題】本発明はこの様な従来
の不具合に鑑みてなされたものであり、被検査部材のシ
ールリング溝部全周のリーク（圧洩れ）を簡便・迅速且
つ確実に検知することができると共に、組立て構成が簡
素で且つコンパクト（小型軽量）なリーク検査器を提供
せんとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and can easily, quickly and surely detect a leak (pressure leak) around the entire circumference of the seal ring groove of a member to be inspected. It is possible to provide a leak tester that is capable of being assembled and has a simple assembly configuration and is compact (small and lightweight).
【０００６】[0006]
【課題を解決するための手段】斯る目的を達成する本発
明のリーク検査器は、被検査部材のシールリング溝部に
密接してシールするシーリング部材と、そのシーリング
部材を保持するハウジングとで構成され、前記シーリン
グ部材は弾性を有する材料で円形環状に形成すると共に
内部に全周にわたって作動圧室を形成してなり、前記ハ
ウジングは内周側（又は外周側）を開放した円形環状に
形成すると共に作動圧供給源と前記シーリング部材の作
動圧室とを連通させる作動圧導入口を形成してなり、シ
ーリング部材をハウジング内に着脱可能に収容設置して
なる事を特徴としたものである。A leak detector according to the present invention which achieves the above object comprises a sealing member which closely seals with a seal ring groove portion of a member to be inspected and a housing which holds the sealing member. The sealing member is formed of a material having elasticity into a circular ring shape, and the working pressure chamber is formed inside the entire circumference, and the housing is formed into a circular ring shape with an inner peripheral side (or an outer peripheral side) being opened. At the same time, an operating pressure introducing port for communicating the operating pressure supply source with the operating pressure chamber of the sealing member is formed, and the sealing member is detachably accommodated and installed in the housing.
【０００７】この時、前記シーリング部材を、外周側
（又は内周側）を開放した円形環状に形成すると共に、
該円周開放縁に内側に向けて鍔片を全周にわたって形成
し、該鍔片の外面側を前記ハウジングにおける開放した
側の内周面に密接させると同時に、該鍔片の内面側に前
記シーリング部材の作動圧室と作動圧導入口とを連通さ
せる通孔を形成してなるプッレシャーリングを密接せし
めるようにしても良い。そして、前記ハウジングは、ハ
ウジング本体と当該ハウジング本体の側周面を覆う円形
環状板とで構成することが好ましい。At this time, the sealing member is formed in a circular ring shape with the outer peripheral side (or inner peripheral side) being open,
A flange piece is formed over the entire circumference at the circumferential opening edge toward the inside, and the outer surface side of the flange piece is brought into close contact with the inner peripheral surface of the open side of the housing, and at the same time the inner surface side of the flange piece is It is also possible to closely contact the Plesser ring formed by forming a through hole that connects the working pressure chamber of the sealing member and the working pressure introducing port. Further, it is preferable that the housing includes a housing body and a circular annular plate that covers a side peripheral surface of the housing body.
【０００８】また、前記ハウジングを検査治具盤上に固
定状に設置すると共に、前記ハウジングの作動圧導入口
を上記検査治具盤に穿設せしめた作動圧導入通路に連通
接続させ、且つ上記検査治具盤には被検査部材に形成さ
れた流体通路に接続される接続子を突設せしめ、該接続
子を上記検査治具盤に穿設せしめた流体導入通路に連通
接続させるようにしても良い。Further, the housing is fixedly installed on the inspection jig board, and the working pressure introducing port of the housing is connected to the working pressure introducing passage formed in the inspection jig board so as to communicate therewith. The inspection jig board is provided with a connector protruding from the fluid passage formed in the member to be inspected, and the connector is communicated with the fluid introduction passage formed in the inspection jig board. Is also good.
【０００９】[0009]
【発明の実施の形態】本発明に係るリーク検査器Ａは、
被検査部材Ｗの突出部外周に形成されたシールリング溝
部Ｓ（図示例）や被検査部材Ｗの内周に形成されたシー
ルリング溝部のリークを検査することができるのもであ
り、基本的に、被検査部材Ｗのシールリング溝部Ｓに密
接してシールするシーリング部材１と、このシーリング
部材１を保持するためのハウジング２とで構成される。BEST MODE FOR CARRYING OUT THE INVENTION A leak detector A according to the present invention is
Basically, it is possible to inspect a seal ring groove S (illustrated in the figure) formed on the outer periphery of the projecting portion of the member to be inspected W or a seal ring groove portion formed on the inner periphery of the member to be inspected W, basically. The sealing member 1 includes a sealing member 1 that closely seals the seal ring groove S of the member W to be inspected, and a housing 2 that holds the sealing member 1.
【００１０】シーリング部材１は、被検査部材Ｗのシー
ルリング溝部Ｓ表面に密接しやすいように弾性を有する
ゴム材や合成樹脂材等を用いて円形環状（ドーナツリン
グ形状）に形成すると共に、内部に全周にわたって作動
圧室１１を形成してなる。即ち、このシーリング部材１
はタイヤのチューブのように断面略円形状をした円形環
状に形成しても良いし、図示実施例のごとく外周側（又
は内周側）を開放した断面略凹形の円形環状に形成して
も良い。The sealing member 1 is formed into a circular ring shape (donut ring shape) using a rubber material or a synthetic resin material having elasticity so as to be easily brought into close contact with the surface of the seal ring groove portion S of the member W to be inspected. The working pressure chamber 11 is formed over the entire circumference. That is, this sealing member 1
May be formed in a circular ring shape having a substantially circular cross section like a tire tube, or may be formed in a circular ring shape having a substantially concave cross section in which the outer peripheral side (or inner peripheral side) is opened as in the illustrated embodiment. Is also good.
【００１１】尚、シーリング部材１を、図示実施例のご
とく外周側を開放した円形環状に形成した場合には、被
検査部材Ｗの突出部外周に形成されたシールリング溝部
Ｓのリーク検査を行なうことができ、逆に内周側を開放
した円形環状に形成した場合には、被検査部材Ｗの内周
に形成されたシールリング溝部Ｓのリーク検査を行なう
ことができるようになることは、容易に理解されるであ
ろう。また、使用する作動圧としては、エアーや水，
油，不活性ガスなどが使用可能である。When the sealing member 1 is formed in a circular ring shape with the outer peripheral side being open as in the illustrated embodiment, the seal ring groove S formed on the outer periphery of the protruding portion of the member W to be inspected is inspected for leaks. On the contrary, when the inner peripheral side is formed into a circular ring shape with an open inner side, the leak inspection of the seal ring groove S formed on the inner peripheral side of the member W to be inspected can be performed. It will be easily understood. The working pressure used is air, water,
Oil, inert gas, etc. can be used.
【００１２】以下の説明では、シーリング部材１を、そ
の外周側を開放した円形環状に形成した図示実施例を中
心に説明する。In the following description, the sealing member 1 will be mainly described with reference to the illustrated embodiment in which the sealing member 1 is formed in a circular ring shape with its outer peripheral side being opened.
【００１３】シーリング部材１の円周開放縁１２には、
作動圧室１１内のシール性を向上させるための鍔片１３
をシーリング部材１の全周にわたって形成する。この際
鍔片１３は、図２や図３などに示すごとく円周開放部１
２の両側から内側に向けて形成するか、または図４
（ａ）に示すごとく外側に向けて形成するか、或いは図
４（ｂ）に示すごとく内側及び外側に向けて形成する。At the circumferentially open edge 12 of the sealing member 1,
Collar piece 13 for improving the sealing property in the working pressure chamber 11
Are formed over the entire circumference of the sealing member 1. At this time, the collar piece 13 is provided with the circumferential opening 1 as shown in FIG. 2 and FIG.
2 from both sides inward, or FIG.
It is formed toward the outside as shown in FIG. 4A, or toward the inside and outside as shown in FIG.
【００１４】また、被検査部材Ｗのシールリング溝部Ｓ
に直接密接するシーリング部材１の内周面１４には、被
検査部材Ｗのシールリング溝部Ｓの用途に応じて検査圧
連通用溝１５，１６を形成する。即ち、被検査部材Ｗの
シールリング溝部ＳにＯリングを設置する場合には、シ
ールリング溝部Ｓの内外周でシールするためシールリン
グ溝部Ｓの外側位置に存在する鋳巣等の欠陥は問題とな
らないので、シーリング部材１の内周面１４はフラット
で良いが、シールリング溝部Ｓにシールリングを設置す
る場合には、シールリング溝部Ｓの外側と相手側とでシ
ールするためシールリング溝部Ｓの外周部分やサイド部
分に存在する鋳巣等の欠陥が問題となるので、リーク検
査をするための検査圧がシールリング溝部Ｓの内周部に
も回るように、図３及び図５に示すごとくシーリング部
材１の内周面１４に円周方向の検査圧連通用溝１５及び
／又は軸方向の検査圧連通用溝１６を形成する。この
際、シーリング部材１の内周面１４の幅をシールリング
溝部Ｓの幅より少し大きく設定し、また円周方向の検査
圧連通用溝１５の幅をシールリング溝部Ｓの内側の溝壁
ｓ’1 ，ｓ’2 間の幅Ｌ1 よりも小さく設定すると共
に、軸方向の検査圧連通用溝１６の長さをその両端がシ
ールリング溝部Ｓの左右のシールリング溝ｓ1 ，ｓ2 の
中間に位置するように設定する。そうすれば、シールリ
ング溝部Ｓを確実にシールして正確なリーク検査を期す
ることが出来るようになる。The seal ring groove S of the member W to be inspected
On the inner peripheral surface 14 of the sealing member 1 that is in direct contact with the seal member 1, inspection pressure communication grooves 15 and 16 are formed according to the application of the seal ring groove portion S of the member W to be inspected. That is, when an O-ring is installed in the seal ring groove portion S of the member W to be inspected, defects such as cavities existing at the outer position of the seal ring groove portion S are problematic because they seal at the inner and outer circumferences of the seal ring groove portion S. Therefore, the inner peripheral surface 14 of the sealing member 1 may be flat, but when the seal ring is installed in the seal ring groove S, the seal ring groove S is sealed with the outside of the seal ring groove S so that the seal ring groove S is sealed. Since defects such as blowholes existing in the outer peripheral portion and the side portion pose a problem, as shown in FIGS. 3 and 5, the inspection pressure for leak inspection is also applied to the inner peripheral portion of the seal ring groove S. A circumferential inspection pressure communication groove 15 and / or an axial inspection pressure communication groove 16 is formed on the inner peripheral surface 14 of the sealing member 1. At this time, the width of the inner peripheral surface 14 of the sealing member 1 is set to be slightly larger than the width of the seal ring groove portion S, and the width of the inspection pressure communicating groove 15 in the circumferential direction is set to the groove wall s ′ inside the seal ring groove portion S. It is set to be smaller than the width L 1 between 1 and s ′ 2, and the length of the inspection pressure communicating groove 16 in the axial direction is set so that both ends thereof are in the middle of the left and right seal ring grooves s 1 and s 2 of the seal ring groove portion S. Set to be positioned. By doing so, the seal ring groove S can be surely sealed to ensure accurate leak inspection.
【００１５】ハウジング２は、シーリング部材１を保持
するのに十分な剛性を有する金属材や合成樹脂材等を用
いて、内周側（又は外周側）を開放した断面略凹形の円
形環状に形成すると共に、作動圧供給源（図示せず）と
シーリング部材１の作動圧室１１とを連通させるための
作動圧導入口２１を形成してなる。The housing 2 is made of a metal material, a synthetic resin material, or the like having sufficient rigidity to hold the sealing member 1, and is formed into a circular ring shape having a substantially concave cross-section with an open inner peripheral side (or outer peripheral side). At the same time, the working pressure supply port (not shown) and the working pressure introducing port 21 for communicating the working pressure chamber 11 of the sealing member 1 are formed.
【００１６】また、ハウジング２は、ハウジング本体２
ａとその側周面を覆う１枚又は２枚の円形環状板２ｂと
で構成せしめ、ハウジング本体２ａと円形環状板２ｂを
複数本のネジ２２でもって分離可能に一体化すると共
に、ハウジング本体２ａに作動圧導入口２１を形成せし
め、その作動圧導入口２１に作動圧供給源と接続された
ホース等を接続するためのジョイント管２３を連通接続
させる。尚、ハウジング２は使用に際して１個に限ら
ず、シールリング溝部Ｓの幅に応じて、図６に示すごと
く複数個を一体的に重ね合わせることも可能である。The housing 2 is a housing body 2.
a and one or two circular annular plates 2b covering the side peripheral surface thereof, the housing main body 2a and the circular annular plate 2b are separably integrated with a plurality of screws 22, and the housing main body 2a The working pressure introducing port 21 is formed in the above, and a joint pipe 23 for connecting a hose connected to a working pressure supply source is connected to the working pressure introducing port 21. The number of housings 2 is not limited to one at the time of use, but a plurality of housings 2 may be integrally stacked depending on the width of the seal ring groove portion S as shown in FIG.
【００１７】そして、ハウジング２の内部にはシーリン
グ部材１を取出し着脱可能に収容設置する。その際、シ
ーリング部材１の円周開放部１２に形成せしめた鍔片１
３の外面側をハウジング２における開放した側の内周面
２４に密接させると同時に、鍔片１３の内面側にプッレ
シャーリング３を密接させる。Then, the sealing member 1 is taken out from the housing 2 and is removably accommodated and installed therein. At that time, the collar piece 1 formed on the circumferentially open portion 12 of the sealing member 1
The outer surface side of 3 is brought into close contact with the inner peripheral surface 24 on the open side of the housing 2, and at the same time, the pusher shear ring 3 is brought into close contact with the inner surface side of the collar piece 13.
【００１８】プッレシャーリング３は、シーリング部材
１の鍔片１３に緊迫力を与えることによりシーリング部
材１における作動圧室１１の確実なシール性を図るため
のものであり、シーリング部材１の鍔片１３内面に沿う
外径を有する断面略凸形をした円形環状に形成すると共
に、シーリング部材１の作動圧室１１とハウジング２の
作動圧導入口２１とを連通させる通孔３１を複数個形成
してなり、その肩部をシーリング部材１の鍔片１３の内
面側に密接させる。The pusher shirring 3 is for ensuring a tight sealing property of the working pressure chamber 11 in the sealing member 1 by applying a tightening force to the flange 13 of the sealing member 1, and the flange 13 of the sealing member 1 is provided. A circular ring having a substantially convex cross-section having an outer diameter along the inner surface is formed, and a plurality of through holes 31 for communicating the working pressure chamber 11 of the sealing member 1 and the working pressure introducing port 21 of the housing 2 are formed. Then, the shoulder portion is brought into close contact with the inner surface side of the collar piece 13 of the sealing member 1.
【００１９】而して次に、本リーク検査器Ａの使用方法
について説明する（図７参照）。 （ａ）予め、被検査部材Ｗのシールリング溝部Ｓに流体
通路（オイル孔）ｂと連通するオイル連通孔ａを開口加
工しておき、本リーク検査器Ａを被検査部材Ｗのシール
リング溝部Ｓの外周位置にセットする。この実施例で
は、本リーク検査器Ａを手で持って検査作業を行うこと
が可能である。然る後、作動圧供給源と接続されたジョ
イント管２３を通してハウジング２の作動圧導入口２１
からシーリング部材１の作動圧室１１内に作動圧、例え
ばエアを供給する。Then, a method of using the leak detector A will be described (see FIG. 7). (A) In advance, an oil communication hole a communicating with the fluid passage (oil hole) b is formed in the seal ring groove portion S of the member to be inspected W, and the leak inspection device A is attached to the seal ring groove portion of the member to be inspected W. Set to the outer peripheral position of S. In this embodiment, it is possible to carry out the inspection work while holding the leak inspection device A by hand. After that, the working pressure introducing port 21 of the housing 2 is passed through the joint pipe 23 connected to the working pressure supply source.
The operating pressure, for example, air is supplied from the inside into the operating pressure chamber 11 of the sealing member 1.
【００２０】すると、（ｂ）シーリング部材１の作動圧
室１１の内圧が上昇して、シーリング部材１の内周面１
４全体が中央方（シールリング溝部Ｓ方）へ弾性変形
（膨出）し、シーリング部材１の内周面１４全体がシー
ルリング溝部Ｓの外周に密接してシールリング溝部Ｓが
シールされる。Then, (b) the internal pressure of the working pressure chamber 11 of the sealing member 1 rises, and the inner peripheral surface 1 of the sealing member 1 increases.
The entire 4 is elastically deformed (bulged) toward the center (toward the seal ring groove S), and the entire inner peripheral surface 14 of the sealing member 1 is in close contact with the outer periphery of the seal ring groove S to seal the seal ring groove S.
【００２１】この状態において、（ｃ）被検査部材Ｗの
流体通路（オイル孔）ｂからオイル連通孔ａを通してシ
ールリング溝部Ｓに、リーク検査をするための検査圧
（エア又は水圧或いは油圧など）を送る。この時、シー
ルリング溝部Ｓにひび割れ鋳巣或いはピンホール等の鋳
造上の欠陥が在ると、そこからエア（又は水又は油）が
漏れ出して欠陥の存在が分かる。In this state, (c) inspection pressure (air or water pressure or hydraulic pressure) for leak inspection from the fluid passage (oil hole) b of the member W to be inspected to the seal ring groove S through the oil communication hole a. To send. At this time, if there is a casting defect such as a cracked porosity or a pinhole in the seal ring groove S, air (or water or oil) leaks from the defect, and the existence of the defect can be seen.
【００２２】次に、本発明請求項６に記載したリーク検
査器について、その実施の一例を示した図８に基づいて
いて説明する。リーク検査器Ａ’自体の構成並びに作用
は上述したものとほぼ同様であり、同じ構成部材には同
じ符号を付して、その説明を省略する。Next, the leak detector described in claim 6 of the present invention will be explained based on FIG. 8 showing an example of its implementation. The configuration and operation of the leak tester A ′ itself are almost the same as those described above, and the same components are designated by the same reference numerals and the description thereof will be omitted.
【００２３】このリーク検査器は、シーリング部材１を
収容設置したハウジング２を、検査治具盤４上にネジ５
で固定状に設置すると共に、ハウジング２の作動圧導入
口２１を検査治具盤４に穿設せしめた作動圧導入通路４
１に連通接続させ、且つ検査治具盤４には被検査部材Ｗ
に形成された流体通路（オイル孔）ｂに接続される接続
子４２を突設せしめ、その接続子４２を検査治具盤４の
内部に穿設せしめた流体導入通路４３に連通接続させた
ものである。尚、図中４５は被検査部材Ｗを固定させる
ためのクランプである。In this leak inspection device, a housing 2 accommodating and installing a sealing member 1 is mounted on an inspection jig board 4 with screws 5.
Installed in a fixed state with the working pressure introducing passage 4 in which the working pressure introducing port 21 of the housing 2 is bored in the inspection jig board 4.
1, and the inspection jig board 4 is connected to the inspection target member W.
A connector 42 connected to a fluid passage (oil hole) b formed in the above is provided in a protruding manner, and the connector 42 is connected to a fluid introduction passage 43 which is bored inside the inspection jig board 4. Is. Reference numeral 45 in the figure denotes a clamp for fixing the member W to be inspected.
【００２４】また、図８に示した実施例では、検査治具
盤４に被検査部材Ｗの内部（内側空間）６に通じる検圧
通路４４を形成してある。従って、このリーク検査器に
よれば、他の通路のリーク（圧洩れ）や被検査部材Ｗ全
体のリークも同時に検査可能となる。In the embodiment shown in FIG. 8, the inspection jig board 4 is formed with a pressure detection passage 44 communicating with the inside (inner space) 6 of the member W to be inspected. Therefore, according to this leak inspector, it is possible to simultaneously inspect leaks (pressure leaks) in other passages and leaks in the entire member W to be inspected.
【００２５】[0025]
【発明の効果】本発明のリーク検査器は斯様に構成した
ので、被検査部材のシールリング溝部全周のリーク（圧
洩れ）を簡便且つ迅速にしかも確実に検知することが出
来る。即ち、本リーク検査器を被検査部材のシールリン
グ溝部にセット（嵌合）し、シーリング部材の作動圧室
内に作動圧を供給するだけで被検査部材のシールリング
溝部の全周を確実にシールすることが可能となるもので
ある。従って、シールリング溝部へのセット並びに取り
外しの作業性が良く、リーク検査作業を簡便且つ迅速に
行なうことが出来る。Since the leak detector of the present invention is constructed as described above, it is possible to detect the leak (pressure leak) around the entire seal ring groove of the member to be inspected easily, quickly and surely. That is, the leak inspection device is set (fitted) in the seal ring groove portion of the member to be inspected, and only by supplying the working pressure into the working pressure chamber of the sealing member, the entire circumference of the seal ring groove portion of the member to be inspected is reliably sealed. It is possible to do. Therefore, the workability of setting and removing the seal ring groove portion is good, and the leak inspection work can be performed easily and quickly.
【００２６】しかも、基本的に１個のシーリング部材と
１個のハウジングだけで構成され、構成部材が少ないこ
とと相俟って組立てが容易で安価に製造できると共に、
コンパクトに構成することが出来る。Moreover, it is basically composed of only one sealing member and one housing, and in combination with the small number of constituent members, it is easy to assemble and can be manufactured at low cost.
It can be made compact.
【００２７】更に、被検査部材のシールリング溝部の幅
に応じて、ハウジング（リーク検査器）を複数個一体的
に重ね合わせて使用することが可能であり、コンパクト
に構成することが出来ることと相俟って適用範囲が広く
なる。Further, according to the width of the seal ring groove of the member to be inspected, it is possible to use a plurality of housings (leak inspectors) integrally and superimpose them, and it is possible to make a compact structure. Together, the scope of application becomes wider.
【００２８】また、請求項２記載のリーク検査器によれ
ば、繰り返し使用によりシーリング部材が破損しても、
シーリング部材だけを容易に交換することが可能となる
ので、コストの低減化を図ることができる。According to the leak detector of the second aspect, even if the sealing member is damaged by repeated use,
Since it is possible to easily replace only the sealing member, it is possible to reduce the cost.
【００２９】また、請求項３記載のリーク検査器によれ
ば、シーリング部材を比較的簡単な製造型でもって製造
することが出来るので、シーリング部材をより安価に製
造して一層のことコストの低減化を図ることができる。According to the leak detector of the third aspect, since the sealing member can be manufactured by a relatively simple manufacturing type, the sealing member can be manufactured at a lower cost and the cost can be further reduced. Can be realized.
【００３０】そして、請求項４記載のリーク検査器によ
れば、シーリング部材を外周側（又は内周側）を開放し
た円形環状に形成した場合であっても、シーリング部材
に形成せしめた作動圧室の気密性を向上させることが出
来る。Further, according to the leak detector of the fourth aspect, even when the sealing member is formed in a circular ring shape with the outer peripheral side (or the inner peripheral side) being opened, the operating pressure formed in the sealing member. The airtightness of the room can be improved.
【００３１】また、請求項５記載のリーク検査器によれ
ば、ハウジング自体の製造が容易となると共に、シーリ
ング部材の収容取出を容易に行なうことが出来、しかも
ハウジング本体に対して円形環状板を締め込むことによ
り、シーリング部材に緊迫力を与え得ることができ、そ
の結果、シーリング部材の作動圧室の気密性を向上させ
ることが出来る。According to the fifth aspect of the leak inspector, the housing itself can be easily manufactured, and the sealing member can be easily housed and taken out, and the circular annular plate is attached to the housing body. By tightening, the sealing member can be given a tightening force, and as a result, the airtightness of the working pressure chamber of the sealing member can be improved.
【００３２】また、請求項６記載のリーク検査器によれ
ば、被検査部材のシールリング溝部のリーク検査だけで
なく、被検査部材に形成された流体通路（オイル孔）の
リーク検査をも同時に行なうことが出来る。According to the leak inspecting device of the sixth aspect, not only the leak inspection of the seal ring groove portion of the inspected member but also the leak inspection of the fluid passage (oil hole) formed in the inspected member is performed at the same time. You can do it.
【図１】 本発明実施の一例を示す正面図。FIG. 1 is a front view showing an example of implementing the present invention.
【図２】 図１の（Ｘ）−（Ｘ）線断面図。FIG. 2 is a sectional view taken along line (X)-(X) of FIG.
【図３】 本発明他の実施例を示す要部の断面図。FIG. 3 is a cross-sectional view of a main part showing another embodiment of the present invention.
【図４】 本発明に係るシーリング部材の他の実施例
を示す要部の断面図。FIG. 4 is a sectional view of a main part showing another embodiment of the sealing member according to the present invention.
【図５】 本発明に係るシーリング部材とシールリン
グ溝部の関係を説明する断面図。FIG. 5 is a cross-sectional view illustrating the relationship between the sealing member and the seal ring groove portion according to the present invention.
【図６】 本発明他の実施例を示す要部の断面図。FIG. 6 is a cross-sectional view of a main part showing another embodiment of the present invention.
【図７】 本発明の使用方法を説明する要部の断面
図。FIG. 7 is a sectional view of an essential part for explaining the method of using the present invention.
【図８】 本発明の更に他の実施例を示す断面図。FIG. 8 is a sectional view showing still another embodiment of the present invention.
【図９】 従来例を説明する断面図。FIG. 9 is a sectional view illustrating a conventional example.
【図１０】 従来例を示す断面図。FIG. 10 is a sectional view showing a conventional example.
【図１１】 図１０の（Ｙ）−（Ｙ）線断面図。11 is a sectional view taken along line (Y)-(Y) of FIG.
Ａ……リーク検査器 Ｓ……シールリ
ング溝部 Ｗ……被検査部材 ａ……オイル連通孔 ｂ……流体通路
（オイル孔） １……シーリング部材 １１…作動圧室 １２…円周開放
縁 １３…鍔片 １４…内周面 １５，１６…検査圧連通用溝 ２……ハウジング ２ａ…ハウジング本体 ２ｂ…円形環状
板 ２１…作動圧導入口 ２２…ネジ ２３…ジョイント管 ２４…内周面 ３……プレッシャーリング ３１…通孔 ４……検査治具盤 ４１…作動圧導入通路 ４２…接続子 ４３…流体導入通路 ４４…検圧通路 ４５…クランプ ５……ネジ ６……被検査部材Ｗの内部（内側空間）A: Leak inspector S: Seal ring groove W: Inspected member a: Oil communication hole b: Fluid passage (oil hole) 1 ... Sealing member 11 ... Working pressure chamber 12 ... Circumferential opening edge 13 ... Collar piece 14 ... Inner peripheral surface 15, 16 ... Groove for communication of inspection pressure 2 ... Housing 2a ... Housing body 2b ... Circular annular plate 21 ... Operating pressure inlet 22 ... Screw 23 ... Joint pipe 24 ... Inner peripheral surface 3 ... Pressure ring 31 ... Through hole 4 ... Inspection jig board 41 ... Operating pressure introduction passage 42 ... Connector 43 ... Fluid introduction passage 44 ... Pressure detection passage 45 ... Clamp 5 ... Screw 6 ... Inside of inspected member W ( Inner space)
Claims (6)
成された被検査部材における上記シールリング溝部のリ
ークを検査するためのリーク検査器であって、被検査部
材のシールリング溝部に密接してシールするシーリング
部材と、該シーリング部材を保持するハウジングとで構
成され、前記シーリング部材は弾性を有する材料で円形
環状に形成すると共に内部に全周にわたって作動圧室を
形成してなり、前記ハウジングは内周側（又は外周側）
を開放した円形環状に形成すると共に作動圧供給源と前
記シーリング部材の作動圧室とを連通させる作動圧導入
口を形成してなる事を特徴とするリーク検査器。1. A leak inspector for inspecting a leak in a seal ring groove of a member to be inspected in which a fluid passage is formed in the vicinity of the seal ring groove, the seal intimately sealing the seal ring groove of the member to be inspected. And a housing that holds the sealing member. The sealing member is formed of a material having elasticity into a circular ring shape and has an operating pressure chamber formed all around the inside thereof. Circumferential side (or outer peripheral side)
And a working pressure introducing port that connects the working pressure supply source and the working pressure chamber of the sealing member to each other.
内に着脱可能に収容設置してなる事を特徴とする請求項
１記載のリーク検査器。2. The leak detector according to claim 1, wherein the sealing member is detachably accommodated and installed in the housing.
周側）を開放した円形環状に形成し、該円周開放縁を前
記ハウジングにおける開放した側の内周面に密接させた
事を特徴とする請求項１記載のリーク検査器。3. The sealing member is formed in a circular ring shape with an outer peripheral side (or an inner peripheral side) being open, and the circumferential opening edge is brought into close contact with the inner peripheral surface of the housing on the open side. The leak inspection device according to claim 1.
周側）を開放した円形環状に形成すると共に、該円周開
放縁に内側に向けて鍔片を全周にわたって形成し、該鍔
片の外面側を前記ハウジングにおける開放した側の内周
面に密接させると同時に、該鍔片の内面側には前記シー
リング部材の作動圧室と前記ハウジングの作動圧導入口
とを連通させる通孔を形成してなるプッレシャーリング
を密接せしめた事を特徴とする請求項１記載のリーク検
査器。4. The sealing member is formed in a circular ring shape with an outer peripheral side (or an inner peripheral side) being opened, and a flange piece is formed on the opening edge of the circumference toward the inside so as to cover the entire circumference. The outer surface is brought into close contact with the inner peripheral surface on the open side of the housing, and at the same time, a through hole is formed on the inner surface side of the collar piece for allowing the working pressure chamber of the sealing member and the working pressure introduction port of the housing to communicate with each other. The leak inspection device according to claim 1, wherein the pre-shearing is made in close contact.
当該ハウジング本体の側周面を覆う円形環状板とで構成
した事を特徴とする請求項１記載のリーク検査器。5. The leak detector according to claim 1, wherein the housing comprises a housing main body and a circular annular plate covering a side peripheral surface of the housing main body.
状に設置すると共に、前記ハウジングの作動圧導入口を
上記検査治具盤に穿設せしめた作動圧導入通路に連通接
続させ、且つ上記検査治具盤には被検査部材に形成され
た流体通路に接続される接続子を突設せしめ、該接続子
を上記検査治具盤に穿設せしめた流体導入通路に連通接
続させた事を特徴とする請求項１記載のリーク検査器。6. The housing is fixedly installed on an inspection jig board, and an operating pressure introducing port of the housing is connected to an operating pressure introducing passage formed in the inspection jig board so as to communicate therewith. On the inspection jig board, a connector connected to the fluid passage formed on the member to be inspected is projected, and the connector is connected to the fluid introduction passage formed on the inspection jig board. The leak detector according to claim 1, wherein the leak detector is a leak detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22646995A JPH0972815A (en) | 1995-09-04 | 1995-09-04 | Leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22646995A JPH0972815A (en) | 1995-09-04 | 1995-09-04 | Leakage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0972815A true JPH0972815A (en) | 1997-03-18 |
Family
ID=16845596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22646995A Pending JPH0972815A (en) | 1995-09-04 | 1995-09-04 | Leakage detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0972815A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358312A (en) * | 2011-08-26 | 2012-02-22 | 齐齐哈尔轨道交通装备有限责任公司 | Railway vehicle chassis and railway vehicle |
| CN115264194A (en) * | 2022-09-28 | 2022-11-01 | 大庆市龙兴石油机械有限公司 | High pressure resistant prevention of seepage oil pipe coupling |
-
1995
- 1995-09-04 JP JP22646995A patent/JPH0972815A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358312A (en) * | 2011-08-26 | 2012-02-22 | 齐齐哈尔轨道交通装备有限责任公司 | Railway vehicle chassis and railway vehicle |
| CN115264194A (en) * | 2022-09-28 | 2022-11-01 | 大庆市龙兴石油机械有限公司 | High pressure resistant prevention of seepage oil pipe coupling |
| CN115264194B (en) * | 2022-09-28 | 2022-12-20 | 大庆市龙兴石油机械有限公司 | High pressure resistant prevention of seepage oil pipe coupling |
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