JPS623592Y2 - - Google Patents

Info

Publication number
JPS623592Y2
JPS623592Y2 JP1980017497U JP1749780U JPS623592Y2 JP S623592 Y2 JPS623592 Y2 JP S623592Y2 JP 1980017497 U JP1980017497 U JP 1980017497U JP 1749780 U JP1749780 U JP 1749780U JP S623592 Y2 JPS623592 Y2 JP S623592Y2
Authority
JP
Japan
Prior art keywords
plug
ring
connection
cylinders
rings
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.)
Expired
Application number
JP1980017497U
Other languages
Japanese (ja)
Other versions
JPS56119093U (en
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 filed Critical
Priority to JP1980017497U priority Critical patent/JPS623592Y2/ja
Publication of JPS56119093U publication Critical patent/JPS56119093U/ja
Application granted granted Critical
Publication of JPS623592Y2 publication Critical patent/JPS623592Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

【考案の詳細な説明】 (利用分野及び考案の概要) 給湯器とフアンコンベクター等の端末器とを温
水循環回路により接続して暖房する場合、前記端
末器の移動及び修理・点検の便宜を図るため前記
循環回路を接続・分離可能にした温水コンセント
が各種提案されている。従来、この温水コンセン
トは、第1図に示すようにコンセント本体1に穿
設された一対の接続孔2,2にプラグ3に一体的
に固定された筒体4,4を挿入・取外すことによ
り流路の上記接続・分離を行つている。ところ
が、この場合、接続孔2,2のピツチと筒体4,
4のピツチとを正確に一致させることは不可能で
あり、必然的に両者に誤差が生じる。筒体4,4
のそれぞれに装着したOリング5,6はこの誤差
をある程度吸収して接続部のシールを確保し得る
が、流路内を温水が通ること及び接続状態のまま
で長期にわたつて放置されること等からOリング
5,6に偏つた永久変形が生じることがある。こ
の場合、接続状態のままではシール不良が生じる
こともないが、一度取外した後筒体4,4を接続
孔2,2に挿入した場合に漏れの生じることがあ
る。
[Detailed description of the invention] (Field of application and overview of the invention) When heating is performed by connecting a water heater and a terminal device such as a fan convector through a hot water circulation circuit, the purpose of the present invention is to facilitate the movement, repair, and inspection of the terminal device. To achieve this, various hot water outlets have been proposed in which the circulation circuit can be connected and separated. Conventionally, this hot water outlet has been constructed by inserting and removing cylindrical bodies 4, 4, which are integrally fixed to a plug 3, into a pair of connection holes 2, 2 drilled in an outlet body 1, as shown in Fig. 1. The above connections and separations of flow paths are performed. However, in this case, the pitch of the connecting holes 2, 2 and the cylinder body 4,
It is impossible to exactly match the pitch of 4, and errors will inevitably occur in both. Cylindrical body 4, 4
The O-rings 5 and 6 attached to each of the O-rings 5 and 6 can absorb this error to some extent and ensure a seal at the connection, but hot water may pass through the flow path and the O-rings 5 and 6 may be left connected for a long period of time. Permanent deformation may occur in the O-rings 5 and 6 due to such reasons. In this case, seal failure will not occur if the connected state is maintained, but leakage may occur when the cylinder bodies 4, 4 are inserted into the connecting holes 2, 2 after being removed.

これは、温水が循環する回路に用いられること
から、シール部に用いられるOリング5,6が熱
的影響を受けやすく、長期間接続状態に放置され
ていたものを、取外すと、筒体4,4と接続孔
2,2の相互の偏心に起因する永久変形が前記O
リングに残るからである。
Since this is used in a circuit in which hot water circulates, the O-rings 5 and 6 used in the sealing part are easily affected by heat, and when removed after being left connected for a long time, the cylindrical body 4 , 4 and the connection holes 2, 2 due to the mutual eccentricity of the O
Because it remains in the ring.

このような問題をある程度緩和できるものとし
て、特開昭51−110718号公報に開示のものがある
が、このものは、接続用の雌具としての接続孔2
の内面に嵌合接続部の外周をシールするOリング
と、接続部の軸線方向と直角な面でのシールを確
保するガスケツトを併用する。
There is a method disclosed in Japanese Patent Application Laid-open No. 110718/1983 that can alleviate such problems to some extent, but this method uses a connecting hole 2 as a female fitting for connection.
An O-ring that seals the outer periphery of the fitting connection part and a gasket that ensures sealing in a plane perpendicular to the axial direction of the connection part are used together on the inner surface of the connector.

従つて、Oリングの永久変形によつて、このO
リングシール部に漏れが生じるようになつても、
他方のガスケツト部により外部への漏れが防止で
きる。
Therefore, due to the permanent deformation of the O-ring, this O
Even if the ring seal starts to leak,
The other gasket part can prevent leakage to the outside.

ところが、この従来のものによつても、接続部
のシールは不十分である。接続孔2と筒体4の嵌
合によつて流路接続する接続部が複数個あつて、
これらが同時に接続される場合、接続孔2,2の
ピツチと筒体4,4のピツチの不一致や、これら
の芯振れを完全に無くすることはできず、このよ
うな偏心がある場合、上記従来のものでは、ガス
ケツトとこれに対向する筒部端面との間にズレが
生じることとなり、漏れが生じ易くなるからであ
る。
However, even with this conventional device, the sealing of the connection portion is insufficient. There are a plurality of connection parts that connect the flow path by fitting the connection hole 2 and the cylinder 4,
When these are connected at the same time, it is not possible to completely eliminate the mismatch between the pitch of the connecting holes 2, 2 and the pitch of the cylinders 4, 4, and the runout of these centers, and if there is such eccentricity, the above This is because, in the conventional gasket, a misalignment occurs between the gasket and the end surface of the cylindrical portion facing the gasket, which tends to cause leakage.

(技術的課題) 本考案は、このような〓プラグ3に一対の筒体
4,4を設け、この筒体4,4に嵌合部シール用
のOリングを装着し、この筒体4,4をコンセン
ト本体1に設けた一対の接続孔2,2に嵌合させ
て二つの流路を同時に接続するようにしたもの〓
において、接続孔2,2と筒体4,4間に偏心が
あつても、接続部に漏れが生じないようにするた
め、又、Oリングに永久変形が生じても漏れにく
くするため、筒体4,4の開口端周縁においても
Oリングとは別個のシールが確保できるようにす
ることをその技術的課題とする。
(Technical Problem) The present invention provides a pair of cylindrical bodies 4, 4 in such a plug 3, attaches an O-ring for sealing the fitting part to the cylindrical bodies 4, 4, and 4 is fitted into a pair of connection holes 2, 2 provided in the outlet body 1 to connect two flow paths at the same time.
In order to prevent leakage from occurring in the connection even if there is eccentricity between the connection holes 2, 2 and the cylinders 4, 4, and to prevent leakage even if the O-ring is permanently deformed, the cylinder is The technical problem is to ensure a seal separate from the O-ring even at the periphery of the open end of the bodies 4, 4.

(手段) 上記技術的課題を解決するために講じた本考案
の技術的手段は、〓プラグ3のプラグ本体12の
下面から突出する筒体4,4の基部にこの筒体4
に気密状態に摺動自在に外嵌するOリング17を
設け、このOリング17にバネ18による突出付
勢力を付与させるとともに、このOリング17を
プラグ本体12内に没入可能に支持し、接続孔
2,2の開口端近傍をこの接続孔2の軸線に対し
て直角な平面部とし、プラグ3とコンセント本体
1の接続状態でプラグ本体12の下面と前記平面
部とが対接するようにした〓ことである。
(Means) The technical means of the present invention taken to solve the above technical problem is as follows.
An O-ring 17 is provided that is slidably fitted onto the plug body 12 in an airtight manner, and a spring 18 applies a protruding biasing force to the O-ring 17, and the O-ring 17 is supported so that it can be inserted into the plug body 12, and the connection is made. The vicinity of the opening end of the holes 2, 2 is made into a flat part perpendicular to the axis of the connecting hole 2, so that the lower surface of the plug body 12 and the flat part are in contact with each other when the plug 3 and the outlet body 1 are connected. 〓That's true.

(作用) 本考案の上記技術的手段は次のように作用す
る。
(Function) The above technical means of the present invention functions as follows.

プラグ3をコンセント本体1に接続したとき、
接続孔2,2と筒体4,4の嵌合部は筒体4,4
に具備させた嵌合部シール用のOリングによつて
両者の嵌合部のシールが確保される。又、プラグ
3をコンセント本体1に接続したとき、プラグ本
体12の下面は接続孔2,2の開口端に続く平面
部に対接するから、この両者の接続前において突
出方向にあつた、各Oリング17は、これに対応
させたバネ18によつて、上記平面部に圧接され
る。このOリング17,17は筒体4,4に摺動
自在に外嵌するから、又、それぞれが別個にバネ
18によつて加圧されるから、筒体4,4相互及
び接続孔2,2相互が偏心状態にあつても各接続
孔2の開口端に続く平面部に密接され、この部分
で確実にシールされる。
When plug 3 is connected to outlet body 1,
The fitting portion between the connecting holes 2, 2 and the cylinders 4, 4 is the cylinder body 4, 4.
The sealing of both fitting parts is ensured by the O-ring for sealing the fitting parts provided in the. Furthermore, when the plug 3 is connected to the outlet main body 1, the lower surface of the plug main body 12 comes into contact with the flat part following the opening ends of the connection holes 2, 2, so that each O The ring 17 is pressed against the flat surface by a corresponding spring 18. Since the O-rings 17, 17 are slidably fitted onto the cylinders 4, 4, and each is pressurized separately by a spring 18, the cylinders 4, 4 are connected to each other and the connecting holes 2, Even if the two connecting holes 2 are eccentric to each other, they are brought into close contact with the flat portion following the open end of each connecting hole 2, and are reliably sealed at this portion.

(効果) 本考案は上記構成であるから次の特有の効果を
有する。
(Effects) Since the present invention has the above configuration, it has the following unique effects.

接続孔2,2及び筒体4,4が偏心していても
Oリング17,17によつて各接続部の外部漏れ
は防止されるから、二流路同時接続の場合の接続
部のシールが一層向上する。
Even if the connection holes 2, 2 and the cylinders 4, 4 are eccentric, the O-rings 17, 17 prevent external leakage from each connection, which further improves the sealing of the connection when two channels are connected at the same time. do.

特開昭5340410号公報に開示のものを二流路同
時接続具にそのまま採用した場合には、フランジ
部に設けたパツキンの対接によつてのみ主たるシ
ールが確保されることとなり、このような場合に
は、上記の効果が得られないことは勿論、シール
圧力を十分に高く設定できないが、本考案の上記
技術的手段によれば、嵌合部の主たるシールが嵌
合部シール用のOリングによつて確保されるから
このような不都合が生じない。
If the method disclosed in Japanese Patent Application Laid-open No. 5340410 is adopted as it is for a two-channel simultaneous connector, the main seal will be ensured only by the contact of the gasket provided on the flange, and in such a case However, according to the above technical means of the present invention, the main seal of the fitting part is an O-ring for sealing the fitting part. This kind of inconvenience does not occur because it is secured by

(実施例) 以下、本考案の実施例を第2図に従つて詳述す
る。尚、第1図の構成各部と対応するものは同一
符合を使用する。
(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIG. Note that the same reference numerals are used for components corresponding to those in FIG. 1.

コンセント本体1はその一側を給湯器側回路に
接続され、他方の一側に一対の接続孔2,2を有
するものであり、二流路が独立して形成されて各
流路中に弁体7,7が常閉状態に挿入されてい
る。これら弁体の弁軸8,8は接続孔2,2の開
口端に突出し、後述のプラグ3内の弁体に対応す
る。又、コンセント本体1の両側には一対のフツ
ク9,9が配設されてコンセント本体1の側壁と
の間に介装したバネ10,10により係合方向に
付勢されている。
The outlet main body 1 is connected to the water heater side circuit on one side, and has a pair of connection holes 2, 2 on the other side, and two flow paths are formed independently, and a valve body is installed in each flow path. 7, 7 are inserted in a normally closed state. Valve shafts 8, 8 of these valve bodies protrude from the open ends of the connection holes 2, 2, and correspond to valve bodies in the plug 3, which will be described later. A pair of hooks 9, 9 are disposed on both sides of the outlet body 1, and are biased in the engaging direction by springs 10, 10 interposed between the hooks 9 and the side wall of the outlet body 1.

他方、プラグ3は、プラグ本体12及びこれに
螺着される可撓管接続用の接続筒11,11及び
筒体4,4とからなり、接続筒11,11から筒
体4,4に至る二流路が独立して形成されてい
る。筒体4,4は接続筒11,11に接続され、
これら接続体がプラグ本体12に固定されてい
る。
On the other hand, the plug 3 consists of a plug body 12, connection tubes 11, 11 for connecting flexible tubes screwed onto the plug body 12, and cylinders 4, 4, and from the connection tubes 11, 11 to the cylinders 4, 4. Two channels are formed independently. The cylinders 4, 4 are connected to the connection cylinders 11, 11,
These connecting bodies are fixed to the plug body 12.

各筒体4の中程にはその内部に弁座14を形成
してこれに弁体15を常閉状態に対応させ、他
方、外周部にはプラグ本体12の下面近傍にOリ
ング17を摺動自在に外嵌し、このOリング17
の上面には、筒体4,4に対して同様に外嵌摺動
するリング16を対接させ、このリング16をプ
ラグ本体12に形成した環状凹部13内に没入自
在に収容するとともに、この環状凹部13の上壁
とリング16との間にバネ18を介装してある。
上記リング16,16はその最降下位置を予め適
宜に設定してOリング17,17がプラグ本体1
2の下面より下位に突出するように成し、さら
に、前記バネ18,18の付勢力、及び、バネ1
9,19の付勢力はシール圧力に応じて所定の強
さに設定してある。尚、舌片20,20はフツク
9,9に適合させてプラグ本体12から張出させ
た一対の舌片である。
A valve seat 14 is formed in the middle of each cylindrical body 4 to accommodate the normally closed state of the valve body 15, and an O-ring 17 is inserted near the bottom surface of the plug body 12 on the outer periphery. This O-ring 17 is movably fitted on the outside.
On the upper surface, a ring 16 which is slidably fitted onto the cylinder bodies 4 and 4 is placed in opposition, and this ring 16 is accommodated in an annular recess 13 formed in the plug body 12 so as to be freely retractable. A spring 18 is interposed between the upper wall of the annular recess 13 and the ring 16.
The rings 16, 16 are set at their lowest positions in advance, and the O-rings 17, 17 are placed in the plug body 1.
2, and furthermore, the urging force of the springs 18, 18 and the spring 1
The biasing forces 9 and 19 are set to a predetermined strength depending on the sealing pressure. The tongues 20, 20 are a pair of tongues that are adapted to fit the hooks 9, 9 and protrude from the plug body 12.

上記した実施例の作用についてさらに詳述する
と、プラグ本体12の接続筒11,11は可撓管
により端末器具に接続されて図の矢印の如く、一
方の筒体4から端末器(図示せず)を介して他方
の筒体4に復帰する循環流路が形成され、他方、
コンセント本体1は給湯器側回路の往路21、復
路22に接続されて、室内に設置される端末器近
傍に埋設される。
To explain the operation of the above-described embodiment in more detail, the connecting tubes 11, 11 of the plug body 12 are connected to the terminal device by a flexible tube, and as shown by the arrow in the figure, one tube 4 is connected to the terminal device (not shown). ) is formed to return to the other cylindrical body 4, and the other,
The outlet main body 1 is connected to an outgoing path 21 and an incoming path 22 of a circuit on the water heater side, and is buried near a terminal device installed indoors.

端末器使用に際してはプラグ3の筒体4,4を
接続孔2,2に挿入して各流路を連通させるが、
この過程を詳述すると、前記挿入により筒体4,
4の下方のOリング5,6が該筒体と接続孔2,
2とのシールを確保しつつ侵入し、まず、弁軸
8,8と弁体15,15とが当接して以後の挿入
により弁体15,15及び弁体7,7が開弁す
る。このため、バネ19,19及びバネ23,2
3の付勢力は予め適宜に設定してある。
When using a terminal device, the cylinders 4, 4 of the plug 3 are inserted into the connection holes 2, 2 to communicate each flow path.
To explain this process in detail, by the insertion, the cylinder 4,
4, the lower O-rings 5, 6 are connected to the cylinder body and the connecting hole 2,
First, the valve shafts 8, 8 and the valve bodies 15, 15 come into contact with each other, and the valve bodies 15, 15 and the valve bodies 7, 7 open by subsequent insertion. For this reason, the springs 19, 19 and the springs 23, 2
The biasing force No. 3 is set appropriately in advance.

筒体4,4がさらに挿入されると、Oリング1
7,17がコンセント本体1の上面に当接すると
ともにバネ18,18の付勢力に抗してプラグ本
体12が降下しその下面が前記上面に当接したと
きフツク9,9が舌片20,20に係合する。こ
れによりプラグ3とコンセント本体1とは接続状
態に保持されしかも往路21から端末器を経て復
路22に至る循環流路が連通することとなり、端
末器の適宜操作によりこれの使用が可能となる。
When the cylinders 4, 4 are further inserted, the O-ring 1
7 and 17 contact the upper surface of the outlet main body 1, and the plug main body 12 descends against the biasing force of the springs 18 and 18 and its lower surface abuts the upper surface, the hooks 9 and 9 touch the tongue pieces 20 and 20. engage with. As a result, the plug 3 and the outlet main body 1 are maintained in a connected state, and the circulation flow path from the outgoing path 21 to the incoming path 22 via the terminal device is communicated, and this can be used by appropriately operating the terminal device.

この接続状態において、筒体4,4と接続孔
2,2の接続部はOリング5,6によりシールさ
れるとともに、接続孔2,2の開口端周縁はOリ
ング17,17によつてもシールされたものとな
る。該Oリング17,17によるシールはバネ1
8,18による軸線方向のものであるから、他方
のOリング5,6に比べて大きな範囲で接続孔
2,2と筒体4,4のピツチ誤差を吸収する。従
つて、長期間前記接続状態が維持されたあとこれ
を開放したとき、Oリング5,6に偏つた変形が
生じていても、再接続時の漏れは他方のOリング
17,17により防止される。
In this connected state, the connecting portions between the cylinders 4, 4 and the connecting holes 2, 2 are sealed by the O-rings 5, 6, and the opening edges of the connecting holes 2, 2 are also sealed by the O-rings 17, 17. It will be sealed. The O-rings 17, 17 seal the spring 1.
8, 18 in the axial direction, it absorbs the pitch error between the connecting holes 2, 2 and the cylinders 4, 4 to a larger extent than the other O-rings 5, 6. Therefore, even if the O-rings 5 and 6 are unevenly deformed when the O-rings 5 and 6 are opened after being connected for a long period of time, leakage is prevented by the other O-rings 17 and 17 when they are reconnected. Ru.

尚、プラグ3を取外すには、フツク9,9をバ
ネ10,10に抗して拡開すればよく、これによ
り、フツク9,9と舌片20,20の係合が外れ
てプラグ3が取外される。
In order to remove the plug 3, the hooks 9, 9 need only be expanded against the springs 10, 10. As a result, the hooks 9, 9 and the tongue pieces 20, 20 are disengaged, and the plug 3 is removed. removed.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来例の説明図、第2図は本考案実施
例の説明図であり、図中、 1……コンセント本体、12……プラグ本体、
17……Oリング、18……バネ、2……接続
孔、3……プラグ、4……筒体。
Fig. 1 is an explanatory diagram of a conventional example, and Fig. 2 is an explanatory diagram of an embodiment of the present invention.
17... O-ring, 18... Spring, 2... Connection hole, 3... Plug, 4... Cylindrical body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] プラグ3に一対の筒体4,4を設け、この筒体
4,4に嵌合部シール用のOリングを装着し、こ
の筒体4,4をコンセント本体1に設けた一対の
接続孔2,2に嵌合させて二つの流路を同時に接
続するようにしたものにおいて、プラグ3のプラ
グ本体12の下面から突出する筒体4,4のそれ
ぞれの基部にこの筒体4に気密状態に且摺動自在
に外嵌するOリング17を設け、このOリング1
7にバネ18による突出付勢力を付与させるとと
もに、このOリング17をプラグ本体12内に没
入可能に支持し、接続孔2,2の開口端近傍をこ
の接続孔2の軸線に対して直角な平面部とし、プ
ラグ3とコンセント本体1の接続状態でプラグ本
体12の下面と前記平面部とが対接するようにし
た二流路同時接続装置。
The plug 3 is provided with a pair of cylindrical bodies 4, 4, an O-ring for sealing the fitting part is attached to the cylindrical bodies 4, 4, and the cylindrical bodies 4, 4 are connected to a pair of connection holes 2 provided in the outlet body 1. , 2 to connect two flow paths at the same time, the cylinders 4, 4 protruding from the bottom surface of the plug body 12 of the plug 3 are fitted at the bases of each cylinder 4 in an airtight state. In addition, an O-ring 17 that is slidably fitted on the outside is provided, and this O-ring 1
7 is given a protruding urging force by a spring 18, this O-ring 17 is supported so that it can be inserted into the plug body 12, and the vicinity of the opening end of the connection hole 2 is perpendicular to the axis of the connection hole 2. A two-channel simultaneous connection device in which a flat portion is provided, and the lower surface of the plug body 12 is in contact with the flat portion when the plug 3 and the outlet body 1 are connected.
JP1980017497U 1980-02-13 1980-02-13 Expired JPS623592Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980017497U JPS623592Y2 (en) 1980-02-13 1980-02-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980017497U JPS623592Y2 (en) 1980-02-13 1980-02-13

Publications (2)

Publication Number Publication Date
JPS56119093U JPS56119093U (en) 1981-09-10
JPS623592Y2 true JPS623592Y2 (en) 1987-01-27

Family

ID=29613849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980017497U Expired JPS623592Y2 (en) 1980-02-13 1980-02-13

Country Status (1)

Country Link
JP (1) JPS623592Y2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1204777B (en) * 1986-02-04 1989-03-10 Crinos Industria Farmaco COMPOSITION FOR THE ETHERPORARY PREPARATION OF FORMULATIONS FOR TOPICAL APPLICATIONS FOR PHARMACEUTICAL AND COSMETIC USE
JP4797998B2 (en) * 2006-02-17 2011-10-19 株式会社デンソー Heat exchanger piping joint structure and heat exchanger piping assembly method
JP4912962B2 (en) * 2007-06-07 2012-04-11 日東工器株式会社 Pipe coupling device
JP5422843B2 (en) * 2009-11-13 2014-02-19 岩谷産業株式会社 Connection joint for piping for cryogenic fluid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51110718A (en) * 1975-03-22 1976-09-30 Exxon Production Research Co
JPS5340410A (en) * 1976-09-27 1978-04-13 Taisei Corp Pipe joint device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51110718A (en) * 1975-03-22 1976-09-30 Exxon Production Research Co
JPS5340410A (en) * 1976-09-27 1978-04-13 Taisei Corp Pipe joint device

Also Published As

Publication number Publication date
JPS56119093U (en) 1981-09-10

Similar Documents

Publication Publication Date Title
KR960007440B1 (en) Straight connecting hydraulic quick coupler
KR100372461B1 (en) Self-seal type double-pipe joint
US3377087A (en) Union for connecting conduits
US3045857A (en) Tank and head connected by a detachable sealer
JPS623592Y2 (en)
US3645294A (en) Self-sealing coupling
WO2022025513A1 (en) Plug valve hard seal on cylindrical wall
CN103867827A (en) Dedicated type jack catch type connector
US2399516A (en) Quick disconnect coupling
US5178208A (en) Multi-way quick action coupling device particularly for motor vehicle engine cooling circuits
US4378123A (en) Seal means for underwater connectors
CN206093314U (en) Termination spare reaches quick connecting device
JP2577515B2 (en) Liquid dripping prevention fittings
US2399515A (en) Multiple quick disconnect coupling
JP2872931B2 (en) Coupling
US2937890A (en) Pipe coupling for heat exchangers
JPS623591Y2 (en)
JP3492549B2 (en) Piping fitting device
JPH0425585Y2 (en)
JPH0616205Y2 (en) Sockets and plugs for pipe fittings, and pipe connection systems using these
JPS6236119Y2 (en)
JPS623594Y2 (en)
JP2521913Y2 (en) Heater core pipe seal structure
CN212361165U (en) Pipe joint and air conditioner
JPH0247353Y2 (en)