JP3705438B2 - Fluid injection mechanism - Google Patents

Fluid injection mechanism Download PDF

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Publication number
JP3705438B2
JP3705438B2 JP2003316809A JP2003316809A JP3705438B2 JP 3705438 B2 JP3705438 B2 JP 3705438B2 JP 2003316809 A JP2003316809 A JP 2003316809A JP 2003316809 A JP2003316809 A JP 2003316809A JP 3705438 B2 JP3705438 B2 JP 3705438B2
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Prior art keywords
connector
connection port
valve body
flow path
fluid
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JP2003316809A
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JP2005083916A (en
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純一 小谷野
晴彦 近藤
征嗣 緒方
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Riken Keiki KK
Nitto Kohki Co Ltd
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Riken Keiki KK
Nitto Kohki Co Ltd
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本発明は、流体管路にガスや液体などの流体を臨時的に注入するのに適した流体注入機構に関する。   The present invention relates to a fluid injection mechanism suitable for temporarily injecting fluid such as gas or liquid into a fluid conduit.

例えばサンプリング流路に接続されたガス分析測定装置を校正する場合には、サンプリング流路とガス分析測定装置との接続を遮断し、ガス分析測定装置のガス流入口に標準ガスを注入するという作業が行われていた。
この作業は、ガス分析測定装置とサンプリング流路とを接続するコネクタを外して、ボンベやガス袋等の標準ガス供給手段の供給口を接続し、校正作業が終了した時点で、元の管接続に戻したり、また配管の途中にハンドル操作式の三方弁を設けておき、サンプリング流路側から標準ガス側にハンドルを操作し、ボンベやガス袋等により標準ガスを供給し、また校正作業が終了した時点でハンドルを元に戻すという作業が必要となり、作業が面倒であるばかりでなく、流路の切換えを忘却する虞がある。 For example, when calibrating a gas analysis measurement device connected to a sampling flow path, the connection between the sampling flow path and the gas analysis measurement device is cut off, and a standard gas is injected into the gas inlet of the gas analysis measurement device. Was done.
For this work, remove the connector that connects the gas analyzer and sampling channel, connect the supply port of standard gas supply means such as a cylinder or gas bag, and connect the original pipe when the calibration work is completed. Or a handle-operated three-way valve is provided in the middle of the piping, the handle is operated from the sampling flow path side to the standard gas side, the standard gas is supplied by a cylinder or gas bag, etc., and the calibration work is completed. At that time, it is necessary to return the handle to the original position, which is not only troublesome but also forgets to switch the flow path.

本発明はこのような問題に鑑みてなされたものであって、その目的とするところは、本体流路を遮断して臨時的に第２の流体を供給可能とし、注入後には本体流路に自動的に復帰させることができる流体注入機構を提供することである。   The present invention has been made in view of such a problem, and its object is to block the main body flow path so that the second fluid can be temporarily supplied, and after injection, the main flow path is supplied. It is to provide a fluid injection mechanism that can be automatically restored.

このような問題を解消するために本発明においては、本体流路に常時接続される接続部と第１の接続口または第２の接続口との一方を弁体により選択可能に構成され、前記弁体は、コネクタが非装着の状態では前記第２の接続口を遮断し、かつ前記第１の接続口を連通させるように付勢手段により付勢され、また前記コネクタが装着された場合には前記接続部を前記第２の接続口に連通させ、前記第１の接続口との連通を遮断する位置に前記付勢手段に抗して移動するように構成され、前記コネクタには第２の流体を注入する供給口が設けられている。   In order to solve such a problem, in the present invention, one of the connection part and the first connection port or the second connection port always connected to the main body flow path is configured to be selectable by the valve body, When the connector is not attached, the valve body is energized by the urging means so as to shut off the second connection port and allow the first connection port to communicate, and when the connector is attached Is configured to communicate the connection portion with the second connection port and move against the urging means to a position where the communication with the first connection port is blocked. A supply port for injecting the fluid is provided.

コネクタが装着されていない状態では、第１の接続口を介して本来の流路を形成し、またコネクタが装着された状態では、弁体の移動により本来の流路を遮断して第２の接続口に切り替える。
これにより、コネクタの装着という簡単な操作により本体流路を遮断して、臨時的に他の流体を注入でき、またコネクタを取り外すことにより元の流路を形成でき、流路の切り替えの忘却ミスを防止できる。 When the connector is not attached, the original flow path is formed through the first connection port, and when the connector is attached, the original flow path is blocked by the movement of the valve body to Switch to the connection port.
This makes it possible to shut off the main body flow path by a simple operation of mounting the connector and inject other fluids temporarily, or to form the original flow path by removing the connector, and forgetting to switch the flow path. Can be prevented.

そこで以下に本発明の詳細を図示した実施例に基づいて説明する。
図１(イ)、(ロ)は、それぞれ本発明の流体注入機構の一実施例を示すものであって、流体供給口に取り付け可能な接続部４と、第１の接続口２とのそれぞれの開口部４ａ、２ａは、後述する弁体５の移動により連通されたり、また遮断されるよう必要な距離だけずらせて位置されている。 Therefore, details of the present invention will be described below based on the illustrated embodiment.
1 (a) and 1 (b) show an embodiment of the fluid injection mechanism of the present invention, respectively, and each of a connection portion 4 that can be attached to a fluid supply port and a first connection port 2 are shown. The openings 4a and 2a are located at a necessary distance so as to be communicated or blocked by movement of a valve body 5 described later.

弁体５は、その先端５ａにシール部材６が装着され、コイルバネなどの付勢手段７により、開口部４ａ、２ａを常時連通させるように図中左方向に付勢され、かつ移動可能に収容されている。
弁体５の後端５ｂに対向する位置に第２の接続口３をなす開口部３ａが形成され、その近傍に後述するコネクタ１０を係止する環状の凹部８が形成されている。なお図中符号９は、付勢手段７の押さえ部と弁体５の位置決め部を兼ねた凸部で、開口部３ａと弁体５のシール部材６の手前側を連通させるための隙間を確保できるよう放射状に形成されている。 The valve body 5 is fitted with a seal member 6 at its tip 5a, and is urged in the left direction in the drawing so as to keep the openings 4a and 2a in communication with each other by an urging means 7 such as a coil spring. Has been.
An opening 3a forming the second connection port 3 is formed at a position facing the rear end 5b of the valve body 5, and an annular recess 8 for locking a connector 10 described later is formed in the vicinity thereof. Reference numeral 9 in the figure denotes a convex portion that serves as both a pressing portion of the urging means 7 and a positioning portion of the valve body 5 and secures a gap for communicating the opening 3a and the front side of the seal member 6 of the valve body 5. It is formed radially so that it can.

図２(イ)は、上述のコネクタ１０の一実施例を示すものであって、プラグ１の後端に挿入可能な凹部１１には、弁体５の後端５ｂに当接して弁体５を付勢手段７に抗して弁体５を、開口部４ａと開口部２ａとを連通する位置(図１(イ))を遮断する位置(図１(ロ))に移動させる凸部１２が形成され、また凹部１１には第２の流体供給手段に接続するための供給口１３が連通されている。
なお、図中符号１４は、常時は図示しない付勢手段により突出した状態を維持し、また釦１５の押圧により後退する爪を、さらに符号１６はシール部材を示す。 FIG. 2 (a) shows an embodiment of the connector 10 described above. The recess 11 that can be inserted into the rear end of the plug 1 is in contact with the rear end 5b of the valve body 5 so that the valve body 5 Protrusions 12 that move the valve body 5 to a position (FIG. 1 (B)) that blocks the position (FIG. 1 (A)) that connects the opening 4a and the opening 2A against the biasing means 7. Further, a supply port 13 for connection to the second fluid supply means is communicated with the recess 11.
In the figure, reference numeral 14 denotes a claw that maintains a state in which it is normally protruded by an urging means (not shown), retreats when the button 15 is pressed, and reference numeral 16 denotes a seal member.

本体の接続部４を流体供給口に結合し、第１の接続口２に本来の流路を接続すると、この状態では弁体５が付勢手段７により付勢されて図１(イ)に示すように左方に移動しているため、被検ガスは図中矢印Ａで示す流路を経て流れ込む。   When the connecting portion 4 of the main body is coupled to the fluid supply port and the original flow path is connected to the first connection port 2, the valve body 5 is urged by the urging means 7 in this state, as shown in FIG. Since it moves to the left as shown, the test gas flows through the flow path indicated by the arrow A in the figure.

一方、他の流体を臨時的に供給する場合には、コネクタ１０をプラグ１の第２の接続口３に装着すると、図１(ロ)に示したように爪１４が凹部８に係止され、同時に凸部１２が弁体５を付勢手段７に抗して接続部４の開口部４ａを越え、かつ第１の接続口２の開口部２ａの手前までに押し込む。   On the other hand, when temporarily supplying other fluid, when the connector 10 is attached to the second connection port 3 of the plug 1, the claw 14 is locked to the recess 8 as shown in FIG. At the same time, the convex portion 12 pushes the valve body 5 against the biasing means 7 and passes over the opening 4 a of the connection portion 4 and before the opening 2 a of the first connection port 2.

これにより接続部４と第１の接続口２とが弁体５により遮断される一方、接続部４が第２の接続口３に連通され、図中矢印Ｂで示す流路が形成される。この状態で供給口１３からボンベやガス袋、そのた流体供給手段を用いて流体を供給すると、第２の接続口３を経由して流れ込む。   As a result, the connecting portion 4 and the first connecting port 2 are blocked by the valve body 5, while the connecting portion 4 is communicated with the second connecting port 3 to form a flow path indicated by an arrow B in the figure. In this state, when a fluid is supplied from the supply port 13 using a cylinder, a gas bag, or other fluid supply means, the fluid flows through the second connection port 3.

臨時的な注入が終了した段階で釦１５を押すと爪１４が後退し、コネクタ１０をプラグ１から取り外すことができる。これにより、弁体５がコネクタ１０の凸部１２の支持を失って付勢手段７の付勢力により図１(イ)の状態に復帰し、図中矢印Ａの流路を形成し、第１の接続口２の流体が流れ込む。
そして望ましくは、コネクタ１０を外した状態では、後述するキャップ２０を装着すると、シール部材６が磨耗等によりシール力が低下しても、開口部３ａからの流体の漏洩を、キャップ２０のシール部材２４により確実に防止することができる。 When the button 15 is pushed at the stage where the temporary injection is completed, the claw 14 is retracted, and the connector 10 can be removed from the plug 1. As a result, the valve body 5 loses the support of the convex portion 12 of the connector 10 and returns to the state shown in FIG. 1 (a) by the urging force of the urging means 7, thereby forming the flow path indicated by the arrow A in FIG. The fluid at the connection port 2 flows in.
Desirably, when the cap 20 to be described later is attached in a state where the connector 10 is removed, even if the sealing force of the sealing member 6 is reduced due to wear or the like, fluid leakage from the opening 3a is prevented. 24 can reliably prevent this.

キャップ２０は、図２(ロ)に示したようにコネクタ１０と同様にプラグ１の後端にプラグ１で、かつ弁体５の後端５ｂに当接しない凹部２１を備え、常時は図示しない付勢手段により突出した状態を維持し、また釦２２の押圧により後退する爪２３を設けて構成されている。なお、図中符号２４はシール部材を示す。   As shown in FIG. 2 (b), the cap 20 is provided with a recess 21 at the rear end of the plug 1 that does not come into contact with the rear end 5b of the valve body 5 as in the case of the connector 10, and is not always shown. A claw 23 is provided that maintains a protruding state by the urging means and retreats when the button 22 is pressed. In the figure, reference numeral 24 denotes a seal member.

本実施例ではプラグ１の側に環状の凹部８を形成し、コネクタ１０の側に爪１４及び釦１５を設けているが、プラグ１の側に爪１４、及び釦１５を設け、コネクタ１０の側に環状の凹部８を形成しても、同様の作用を奏する。また、キャップ２０とプラグ１との着脱構造についても、プラグ１の側に爪２３、及び釦２２を設け、キャップ２０の側に環状の凹部８を形成しても同様の作用を奏する。   In this embodiment, the annular recess 8 is formed on the plug 1 side, and the claw 14 and the button 15 are provided on the connector 10 side. However, the claw 14 and the button 15 are provided on the plug 1 side. Even if the annular recess 8 is formed on the side, the same effect is obtained. Also, the cap 20 and the plug 1 can be attached and detached by providing the claw 23 and the button 22 on the plug 1 side, and forming the annular recess 8 on the cap 20 side.

図(イ)、(ロ)は、それぞれ本発明の流体注入機構の一実施例を、コネクタを外した状態とコネクタを装着した状態で示す断面図である。FIGS. 1A and 1B are cross-sectional views showing an embodiment of the fluid injection mechanism of the present invention with the connector removed and the connector attached, respectively. 図(イ)、(ロ)は、それぞれ同上コネクタ、及びキャップの一実施例を示す断面図である。FIGS. 1A and 1B are cross-sectional views showing an embodiment of the connector and the cap, respectively.

符号の説明Explanation of symbols

１ プラグ、 ２ 接続口、 ３ 接続口、 ４ 接続部、 ５ 弁体、 ６ シール部材、 ７ 付勢手段、 ８ 凹部、 １０ コネクタ、 １１ 凹部、 １２ 凸部、 １３ 供給口、 １４ 爪、 １５ 釦、 ２０ キャップ、 ２１ 凹部、 ２３ 爪、 ２４ シール部材、     DESCRIPTION OF SYMBOLS 1 Plug, 2 Connection port, 3 Connection port, 4 Connection part, 5 Valve body, 6 Seal member, 7 Energizing means, 8 Recessed part, 10 Connector, 11 Recessed part, 12 Convex part, 13 Supply port, 14 Claw, 15 Button , 20 cap, 21 recess, 23 nail, 24 seal member,

Claims (1)

本体流路に常時接続される接続部と第１の接続口または第２の接続口との一方を弁体により選択可能に構成され、前記弁体は、コネクタが非装着の状態では前記第２の接続口を遮断し、かつ前記第１の接続口を連通させるように付勢手段により付勢され、また前記コネクタが装着された場合には前記接続部を前記第２の接続口に連通させ、前記第１の接続口との連通を遮断する位置に前記付勢手段に抗して移動するように構成され、前記コネクタには第２の流体を注入する供給口が設けられている流体注入機構。   One of the connection part and the first connection port or the second connection port that is always connected to the main body flow path is configured to be selectable by a valve body, and the valve body has the second connector when the connector is not attached. The connection port is blocked by the biasing means so as to communicate with the first connection port, and when the connector is attached, the connection portion is communicated with the second connection port. The fluid injection is configured to move against the biasing means to a position where communication with the first connection port is blocked, and the connector is provided with a supply port for injecting a second fluid mechanism.
JP2003316809A 2003-09-09 2003-09-09 Fluid injection mechanism Expired - Fee Related JP3705438B2 (en)

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KR100886914B1 (en) * 2007-11-01 2009-03-09 주식회사 아이센스 Cartridge for chemical measurement of blood and apparatus using the same
KR100873915B1 (en) * 2007-11-01 2008-12-12 주식회사 아이센스 Solution bag for apparatus for chemical measurement of blood
KR101535216B1 (en) * 2015-04-02 2015-07-09 (주) 비비비 Fluidic device and apparatus for analyzing body fluid comprising the same

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JPS5647555Y2 (en) * 1977-11-14 1981-11-06
JPS6244644A (en) * 1985-08-23 1987-02-26 Nippon Atom Ind Group Co Ltd Sampling device
JP2000230666A (en) * 1999-02-12 2000-08-22 Nitto Kohki Co Ltd Flow passage selector valve
JP3869150B2 (en) * 1999-04-20 2007-01-17 日東工器株式会社 Pipe fitting
JP2003113984A (en) * 2001-10-05 2003-04-18 Tokai Rika Co Ltd Safety device for gas appliance

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