JP2004219335A - Pressure gauge - Google Patents

Pressure gauge Download PDF

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Publication number
JP2004219335A
JP2004219335A JP2003008917A JP2003008917A JP2004219335A JP 2004219335 A JP2004219335 A JP 2004219335A JP 2003008917 A JP2003008917 A JP 2003008917A JP 2003008917 A JP2003008917 A JP 2003008917A JP 2004219335 A JP2004219335 A JP 2004219335A
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Japan
Prior art keywords
cylinder case
pressure
tube
receiving plate
case pipe
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JP2003008917A
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Japanese (ja)
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JP4188709B2 (en
Inventor
Kiyotaka Takayama
清隆 高山
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Convum Ltd
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Myotoku Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a low price pressure gauge which is small, resistant with respect to shocks, capable of single-operation connection and is not limited in placement in all directions. <P>SOLUTION: The pressure gauge comprises an outer cylinder case tube 4 having a flow inlet 2 and flow outlet 1 of fluid at both ends, an inner cylinder case tube 3 arranged inside the outer cylinder case tube, an exhaust port 5 connected by fluid with outside of the inner cylinder case tube and the outer cylinder case tube, or outside of the outer cylinder case tube, a shock plate and a spring 11 in the gap inside the inner cylinder case tube or between the inner cylinder case tube and the outer cylinder case tube, and a single-operation piping connection mechanism 8. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明に係る圧力計は、流体の正圧力または負圧力を簡易表示する圧力計に関する。
【０００２】
【従来技術】
従来技術よりブルドン管、ベローズ、ダイアフラム、等を用いた機械的な圧力計、シリコンダイアフラム、セラミック製ダイアフラム、半導体歪みゲージ、等を用いた電子式圧力計、等が多く提供されている。
【０００３】
【発明が解決しようとする課題】
機械的な圧力計は、形状が大きくなり、ショックに弱いなどの問題がある。また、電子式圧力計は、小型化が可能で、制御のための出力が容易にとりだすことができるものの、価格面で高価になる問題点がある。そこで、小型で、ショックに強く、ワンタッチ接続が可能で、天地・縦横の設置を限定することなく、安価な圧力計を提供することである。
【０００４】
【課題を解決するための手段】
両端に流体の流入口及び流出口を有する外筒ケース管、前記流入口又は前記流出口に一端面を開口し他端面が閉口して前記外筒ケース管の内部に配置された内筒ケース管、該内筒ケース管の他端面の閉口した内面部分及び前記外筒ケース管の外部に流体が導通する排出ポート、並びに、該内筒ケース管の内部に受圧板及びスプリングが配置された圧力計であり、小型で、耐ショック性があり、ワンタッチ接続が可能で、天地・縦横の設置方向を限定することなく、安価に提供することができる。また、両端に流体の流入口及び流出口を有する外筒ケース管、該外筒ケース管の内部に配置された内筒ケース管、該外筒ケース管及び該内筒ケース管の隙間が流出口側で閉口され流入口側で開口され、該内筒ケース管の周りにスプリング及び受圧板が配置され、並びに、該受圧板より閉口側の外筒ケース管に排出ポートが形成された圧力計であり、小型で、耐ショック性があり、ワンタッチ接続が可能で、天地・縦横の設置向きを限定することなく、安価に提供することができる。
【０００５】
本発明に係る圧力計は、両端に流体の流入口２（１）及び流出口１（２）を有する外筒ケース管４、前記流入口又は前記流出口に一端面を開口し他端面が閉口して前記外筒ケース管の内部に配置された内筒ケース管３、該内筒ケース管の他端面の閉口した内面部分及び前記外筒ケース管の外部に流体が導通する排出ポート５、並びに、該内筒ケース管の内部に受圧板６及びスプリング７が配置されているものである。また、スプリング及び受圧板は、内筒ケース管の内部で閉口側に該スプリング７、開口側に該受圧板となるように配置して正圧力または負圧力用の圧力計である。また、正圧スプリング７が閉口側、開口側に負圧スプリング１１、両スプリングの間に受圧板６をそれぞれ配置して正圧力または負圧力の圧力計である。または、両端に流体の流入口及び流出口を有する外筒ケース管４、該外筒ケース管の内部に配置された内筒ケース管３、該外筒ケース管及び該内筒ケース管の隙間１２が流出口側で閉口され流入口側で開口され、該内筒ケース管の周りにスプリング７及び受圧板６が配置され、並びに、該受圧板より閉口側の外筒ケース管に排出ポート５が形成された圧力計である。更に、外筒ケース管の流入口及び／または流出口にワンタッチ配管接続機構８を備えている圧力計である。
【０００６】
本発明に係る圧力計に関して以下に詳細を説明する。一実施態様を示す図は、概念図であり、また、類似構成に同一の番号を付す。また、本発明に係る圧力計は、流体用であり例えば、液体、気体、等に使用することができ、特に好ましくは気体に対する圧力計である。本発明に係る圧力計は、以下の説明にのみ限定されるものでない。
【０００７】
本発明に係る圧力計の外筒ケース管４は、形状、材料、サイズ、等を特に限定するものでないが、流体の均一な流れを成させるために内面が円柱状の形状が好ましく、外形サイズが５０ｍｍ以下が好ましく、圧力の表示状態を示す受圧板を目視することができる透明な材料が好ましい。例えば、ガラス製の円柱状、アクリル樹脂製の円柱状、等である。好ましくは、圧力値の標示のための圧力値表示マーク１０が付け安易く、耐衝撃性に優れたアクリル樹脂製の外筒ケース管である。
【０００８】
本発明に係る圧力計の内筒ケース管３は、形状、材料、サイズ、等を特に限定するものでないが、前記外筒ケース管と該内筒ケース管の隙間１０を流体がスムーズに流れ、受圧板が該内筒ケース管の内壁と該受圧板の間において該流体がリークすることなくスムースにスライドするように内面、外面共に円柱状の形状が好ましい。該受圧板が目視できる透明な材料が好ましい。または、前記外筒ケース管と該内筒ケース管の隙間１０にスプリング７が配置され、受圧板６が流体のリークすることなく可動する形状であり、例えば、円柱状であり、内筒ケース管の内壁は流体がスムーズな流れる形状であり、例えば、円柱状である。材料としては、受圧板が外筒ケース管の外部から目視できる透明な材料が好ましく、例えば、ガラス製、アクリル樹脂製、等である。受圧板のフロー位置と圧力値の関係を示す圧力値表示マーク１０を内筒ケース管または外筒ケース管に刻印、ペイント、表示マークの印刷物を貼付、等で付けることが好ましい。
【０００９】
本発明に係る圧力計の外筒ケース管４及び内筒ケース管３は、該内筒ケース管が該外筒ケース管の内部に配置され、該内筒ケース管の一端面が外筒ケース管の流入口または流出口に開口し、該内筒ケース管の他端面が閉口していて外筒ケース管の流出口側または流入口側に配置して閉口した内筒ケース管の内面及び外筒ケース管の外部とが排出ポート５で流体の導通が成されている。好ましくは、内筒ケース管が外筒ケース管のほぼ中央部分に配置されていることが流体の均一流動に好ましい。または、外筒ケース管４及び内筒ケース管３は、該内筒ケース管が該外筒ケース管の内部に配置され、外筒ケース管及び内筒ケース管による隙間１２の一端面が外筒ケース管の流入口側または流出口側で開口し、他の端面が流出口側または流入口側で閉口し、閉口側の近傍の外筒ケース管に排出ポート５が形成されて隙間部分の流体の導通が成されている。
【００１０】
本発明に係る圧力計の内筒ケース管３の内部には、スプリング７及び受圧板６が配置されている。該スプリングは、伸縮自在な均一応力を有する物であり金属によるスパイラル、ラバー、樹脂、磁石、等でもよく、応力設計が容易な金属によるスパイラルよりなる物が好ましい。また、該スプリングは、一方が内筒ケース管の閉口している側に固着され、他方が受圧板に固着されていることが好ましい。即ち、受圧板のスプリング側の流体が排出ポート５により排出・流入が自由に行われ、受圧板６は、スプリング７により力のバランスがとられて開口側からの正圧力または負圧力により可動して圧力を表示する。
【００１１】
別の配置として、正圧スプリング７、受圧板６及び負圧スプリング１１は、内筒ケース管３の閉口している側に正圧スプリングが固着され、正圧スプリングの他方が受圧板に固着され、受圧板の反対面に負圧スプリングが固着され、負圧スプリングの他方が内筒ケース管の開口側に固着されているような正圧スプリング、受圧板及び負圧スプリングのサンドイッチ配置であり、受圧板が正圧力または負圧力により稼働して正圧力または負圧力を表示する。
【００１２】
または、本発明に係る圧力計は、外筒ケース管及び内筒ケース管の隙間１２にスプリング７及び受圧板６が配置されている。該受圧板６は、外筒ケース管の内壁及び内筒ケース管の外壁での流体のリークがなくスムーズに可動する。該スプリング７は、上述の材料・働きと類似であり受圧板の閉口側及び／又は開口側に配置してもよい。
【００１３】
本発明に係る圧力計の流入口２（１）及び／または流出口１（２）は、特に限定するものでないが流体配送チューブを接続するに便利なワンタッチ配管接続機構８とすることが好ましい。該ワンタッチ配管接続機構は、一般に使用されている接続機構を用いることができる。
【００１４】
本発明に係る圧力計は、流入口から流体が流入すると外筒ケース管及び内筒ケース管の間（内筒ケース管の内部）を該流体が流動して流出口から流出し、該流体の正圧力９が内筒ケース管の中（外筒ケース管及び内筒ケース管の隙間）の受圧板にかかっており該受圧板が押され、内蔵のスプリングとの力のバランス位置で該受圧板が停止し、外筒ケース管または内筒ケース管に付された圧力値表示マーク１０並びに該受圧板６で圧力値を示す。内筒ケース管の内壁（内筒ケース管の外壁及び外筒ケース管の内壁）並びに受圧板の流体に対するシール性がよく、内筒ケース管内の受圧板により閉じこめられている（外筒ケース管及び内筒ケース管の隙間並びに受圧板により閉じこめられている）流体は、排出ポート５より外部に流出され、流体の圧力が減少したときには排出ポート５より内部に流入され、閉じこめられている流体の圧縮・解放を排出ポート経由により自由にすることでスプリング及び受圧板の受ける流体の正圧力のバランスで圧力値を表示することができる。
【００１５】
負圧力９がかけられた場合には、負圧力（吸引力）により受圧板が引かれて負圧力及びスプリングのバランスにより該受圧板が停止し、外筒ケース管または内筒ケース管に付された圧力値表示マーク並びに該受圧板で負圧力値を示す。前述と同様に流体シール性のよい受圧板の負圧力による稼働につれ排出ポートにより流体の流入・排出が自在に行われる。
【００１６】
【発明の効果】
本発明に係る圧力計は、外筒ケース管、該外筒ケース管内に配置した内筒ケース管、スプリング及び受圧板、該内筒ケース管及び／または該外筒ケース管に配置された排出ポート、該外筒ケース管の流体の流入口及び／または流出口がワンタッチ配管接続機構を備えているものである。該圧力計は、受圧板及び圧力値表示マークで圧力が示され、小型で、ショックに強く、ワンタッチ接続が可能で、天地・縦横の設置方向を限定することなく、安価な圧力計を提供することができる。
【図面の簡単な説明】
【図１】本発明に係る圧力計の一実施態様を示す図である。（ｂ）図は、（ａ）図のＫ−Ｋ’断面図である。
【図２】本発明に係る圧力計の他の一実施態様を示す図である。（ｂ）図は、（ａ）図のＧ−Ｇ’断面図である。
【図３】本発明に係る圧力計の他の一実施態様を示す図である。（ｂ）図は、（ａ）図のＪ−Ｊ’断面図である。
【符号の説明】
１ 流出口（流入口）
２ 流入口（流出口）
３ 内筒ケース管
４ 外筒ケース管
５ 排出ポート
６ 受圧板
７ スプリング（正圧スプリング）
８ ワンタッチ配管接続機構
９ 正圧力・負圧力
１０圧力値表示マーク
１１スプリング（負圧スプリング）
１２隙間[0001]
TECHNICAL FIELD OF THE INVENTION
The pressure gauge according to the present invention relates to a pressure gauge that simply displays a positive pressure or a negative pressure of a fluid.
[0002]
[Prior art]
Conventionally, mechanical pressure gauges using Bourdon tubes, bellows, diaphragms, and the like, electronic pressure gauges using silicon diaphragms, ceramic diaphragms, semiconductor strain gauges, and the like have been provided.
[0003]
[Problems to be solved by the invention]
The mechanical pressure gauge has a problem that the shape becomes large and is weak against shock. Further, although the electronic pressure gauge can be miniaturized and an output for control can be easily obtained, there is a problem in that the price becomes expensive. Therefore, it is an object of the present invention to provide an inexpensive pressure gauge which is small in size, resistant to shock, capable of one-touch connection, and is not limited to installation in vertical and horizontal directions.
[0004]
[Means for Solving the Problems]
An outer cylindrical case pipe having an inlet and an outlet for fluid at both ends; an inner cylindrical case pipe arranged inside the outer cylindrical case pipe with one end opened at the inlet or the outlet and the other end closed. A discharge port through which fluid communicates with the closed inner surface portion of the other end surface of the inner cylinder case tube and the outside of the outer cylinder case tube; and a pressure gauge having a pressure receiving plate and a spring disposed inside the inner cylinder case tube. It is compact, shock-resistant, can be connected with one touch, and can be provided at low cost without limiting the installation directions in the vertical and horizontal directions. Further, an outer cylinder case pipe having an inlet and an outlet for fluid at both ends, an inner cylinder case pipe disposed inside the outer cylinder case pipe, a gap between the outer cylinder case pipe and the inner cylinder case pipe is formed as an outlet. A pressure gauge which is closed on the side and opened on the inflow side, a spring and a pressure receiving plate are arranged around the inner cylinder case tube, and a discharge port is formed in the outer cylinder case tube on the closing side from the pressure receiving plate. It can be provided inexpensively, without being limited in the vertical, horizontal and vertical installation directions, because it is small, has shock resistance, is capable of one-touch connection.
[0005]
The pressure gauge according to the present invention has an outer cylindrical case tube 4 having a fluid inlet 2 (1) and an outlet 1 (2) at both ends, one end opening at the inlet or the outlet, and the other end closing. An inner cylinder case pipe 3 disposed inside the outer cylinder case pipe, a closed inner surface portion at the other end surface of the inner cylinder case pipe, and a discharge port 5 through which fluid flows outside the outer cylinder case pipe; The pressure receiving plate 6 and the spring 7 are disposed inside the inner case tube. Further, the spring and the pressure receiving plate are pressure gauges for positive pressure or negative pressure which are arranged inside the inner cylindrical case tube so as to be the spring 7 on the closing side and the pressure receiving plate on the opening side. The positive pressure spring 7 has a negative pressure spring 11 on the closing side and the opening side, and the pressure receiving plate 6 is disposed between the two springs to form a positive or negative pressure gauge. Or, an outer case pipe 4 having an inlet and an outlet for fluid at both ends, an inner case pipe 3 disposed inside the outer case pipe, and a gap 12 between the outer case pipe and the inner case pipe. Is closed on the outlet side and opened on the inlet side, a spring 7 and a pressure receiving plate 6 are arranged around the inner cylindrical case tube, and a discharge port 5 is provided on the outer cylindrical case tube on the closing side from the pressure receiving plate. It is a formed pressure gauge. Further, the pressure gauge is provided with a one-touch piping connection mechanism 8 at the inflow port and / or the outflow port of the outer case tube.
[0006]
The pressure gauge according to the present invention will be described in detail below. The diagram showing one embodiment is a conceptual diagram, and similar configurations are denoted by the same reference numerals. Further, the pressure gauge according to the present invention is for a fluid, and can be used for, for example, a liquid or a gas, and is particularly preferably a pressure gauge for a gas. The pressure gauge according to the present invention is not limited only to the following description.
[0007]
The outer case tube 4 of the pressure gauge according to the present invention is not particularly limited in shape, material, size, etc., but preferably has a cylindrical inner surface in order to achieve a uniform flow of fluid, and has an outer size. Is preferably 50 mm or less, and a transparent material that allows visual observation of a pressure receiving plate indicating a pressure display state is preferable. For example, it has a cylindrical shape made of glass, a cylindrical shape made of an acrylic resin, or the like. Preferably, it is an outer case tube made of acrylic resin, which is easy to attach a pressure value display mark 10 for indicating a pressure value and has excellent impact resistance.
[0008]
The inner cylinder case pipe 3 of the pressure gauge according to the present invention is not particularly limited in shape, material, size, etc., but fluid smoothly flows through the gap 10 between the outer cylinder case pipe and the inner cylinder case pipe. It is preferable that both the inner surface and the outer surface have a cylindrical shape so that the pressure receiving plate slides smoothly between the inner wall of the inner cylindrical case tube and the pressure receiving plate without leaking the fluid. A transparent material that allows the pressure receiving plate to be seen is preferable. Alternatively, a spring 7 is disposed in a gap 10 between the outer cylinder case pipe and the inner cylinder case pipe, and the pressure receiving plate 6 is shaped to be movable without leaking fluid. The inner wall has a shape in which the fluid flows smoothly, and is, for example, a columnar shape. As the material, a transparent material whose pressure receiving plate is visible from the outside of the outer case tube is preferable, and examples thereof include glass and acrylic resin. It is preferable that a pressure value display mark 10 indicating the relationship between the flow position of the pressure receiving plate and the pressure value be stamped, painted, or printed with a display mark on the inner case tube or outer case tube.
[0009]
The outer cylinder case pipe 4 and the inner cylinder case pipe 3 of the pressure gauge according to the present invention are such that the inner cylinder case pipe is disposed inside the outer cylinder case pipe, and one end face of the inner cylinder case pipe is an outer cylinder case pipe. The inner surface and the outer cylinder of the inner cylinder case pipe which are opened at the inlet or the outlet of the inner cylinder case pipe and the other end face of the inner cylinder case pipe is closed and arranged at the outlet side or the inlet side of the outer cylinder case pipe and closed. Fluid communication is established between the outside of the case tube and the discharge port 5. Preferably, the inner cylinder case tube is disposed at a substantially central portion of the outer cylinder case tube for uniform fluid flow. Alternatively, the outer cylinder case pipe 4 and the inner cylinder case pipe 3 may be configured such that the inner cylinder case pipe is disposed inside the outer cylinder case pipe, and one end face of the gap 12 formed by the outer cylinder case pipe and the inner cylinder case pipe is the outer cylinder case pipe. The case pipe is opened on the inlet side or the outlet side, the other end face is closed on the outlet side or the inlet side, and the discharge port 5 is formed in the outer case pipe near the closed side, and the fluid in the gap is formed. Is conducted.
[0010]
A spring 7 and a pressure receiving plate 6 are arranged inside the inner tube 3 of the pressure gauge according to the present invention. The spring has a uniform elastic stress and may be a metal spiral, a rubber, a resin, a magnet, or the like, and is preferably a metal spiral which is easily stress-designed. Further, it is preferable that one of the springs is fixed to the closed side of the inner cylindrical case tube, and the other is fixed to the pressure receiving plate. That is, the fluid on the spring side of the pressure receiving plate is freely discharged / inflowed by the discharge port 5, and the pressure receiving plate 6 is balanced by the spring 7 and is movable by the positive pressure or the negative pressure from the opening side. To display pressure.
[0011]
As another arrangement, the positive pressure spring 7, the pressure receiving plate 6, and the negative pressure spring 11 have a positive pressure spring fixed to the closed side of the inner tube 3, and the other of the positive pressure springs fixed to the pressure receiving plate. A negative pressure spring is fixed to the opposite surface of the pressure receiving plate, and a positive pressure spring such that the other of the negative pressure springs is fixed to the opening side of the inner cylinder case tube, a sandwich arrangement of the pressure receiving plate and the negative pressure spring, The pressure receiving plate is operated by the positive pressure or the negative pressure to display the positive pressure or the negative pressure.
[0012]
Alternatively, in the pressure gauge according to the present invention, the spring 7 and the pressure receiving plate 6 are arranged in the gap 12 between the outer case tube and the inner case tube. The pressure receiving plate 6 moves smoothly without fluid leakage on the inner wall of the outer tube and the outer wall of the inner case tube. The spring 7 is similar to the above-mentioned materials and functions, and may be arranged on the closing side and / or the opening side of the pressure receiving plate.
[0013]
The inflow port 2 (1) and / or the outflow port 1 (2) of the pressure gauge according to the present invention is preferably, but not limited to, a one-touch piping connection mechanism 8 convenient for connecting a fluid delivery tube. As the one-touch piping connection mechanism, a commonly used connection mechanism can be used.
[0014]
In the pressure gauge according to the present invention, when a fluid flows in from the inflow port, the fluid flows between the outer case pipe and the inner case pipe (inside the inner case pipe) and flows out from the outflow port. The positive pressure 9 is applied to the pressure receiving plate inside the inner tube (the gap between the outer tube and the inner tube), and the pressure plate is pushed, and the pressure plate at the balance position of the force with the built-in spring. Is stopped, and the pressure value is indicated by the pressure value display mark 10 and the pressure receiving plate 6 attached to the outer tube or the inner tube. The inner wall of the inner cylinder case tube (the outer wall of the inner cylinder case tube and the inner wall of the outer cylinder case tube) and the pressure receiving plate have good sealing properties against the fluid, and are sealed by the pressure receiving plate in the inner cylinder case tube (the outer cylinder case tube and The fluid which is confined by the gap in the inner case tube and the pressure receiving plate) flows out from the discharge port 5 and flows in from the discharge port 5 when the pressure of the fluid decreases, compressing the confined fluid. The pressure value can be displayed in a balance between the positive pressure of the fluid received by the spring and the pressure receiving plate by releasing the release freely through the discharge port.
[0015]
When the negative pressure 9 is applied, the pressure receiving plate is pulled by the negative pressure (suction force), the pressure receiving plate is stopped by the balance of the negative pressure and the spring, and is attached to the outer tube or the inner tube. The negative pressure value is indicated by the pressure value display mark and the pressure receiving plate. As described above, the inflow and outflow of the fluid can be freely performed by the discharge port as the pressure receiving plate having a good fluid sealing property is operated by the negative pressure.
[0016]
【The invention's effect】
The pressure gauge according to the present invention includes an outer cylinder case pipe, an inner cylinder case pipe disposed in the outer cylinder case pipe, a spring and a pressure receiving plate, and a discharge port disposed in the inner cylinder case pipe and / or the outer cylinder case pipe. The fluid inlet and / or outlet of the outer case pipe has a one-touch pipe connection mechanism. The pressure gauge shows pressure by the pressure receiving plate and the pressure value display mark, provides a compact, strong shock-resistant, one-touch connection possible, and provides an inexpensive pressure gauge without limiting the installation orientation in the vertical, horizontal and vertical directions. be able to.
[Brief description of the drawings]
FIG. 1 is a diagram showing one embodiment of a pressure gauge according to the present invention. (B) is a sectional view taken along the line KK 'of (a).
FIG. 2 is a diagram showing another embodiment of the pressure gauge according to the present invention. (B) is a sectional view taken along line GG ′ of (a).
FIG. 3 is a diagram showing another embodiment of the pressure gauge according to the present invention. (B) is a cross-sectional view taken along the line JJ ′ of (a).
[Explanation of symbols]
1 Outlet (inlet)
2 Inlet (outlet)
3 inner cylinder case tube 4 outer cylinder case tube 5 discharge port 6 pressure receiving plate 7 spring (positive pressure spring)
8 One-touch piping connection mechanism 9 Positive pressure / negative pressure 10 Pressure value display mark 11 Spring (negative pressure spring)
12 gaps

Claims (6)

両端に流体の流入口及び流出口を有する外筒ケース管、前記流入口又は前記流出口に一端面を開口し他端面が閉口して前記外筒ケース管の内部に配置された内筒ケース管、該内筒ケース管の他端面の閉口した内面部分及び前記外筒ケース管の外部に流体が導通する排出ポート、並びに、該内筒ケース管の内部に受圧板及びスプリングが配置されていることを特徴とする圧力計。An outer cylindrical case pipe having an inlet and an outlet for fluid at both ends; an inner cylindrical case pipe arranged inside the outer cylindrical case pipe with one end opened at the inlet or the outlet and the other end closed. A discharge port through which fluid flows to the closed inner surface portion of the other end surface of the inner cylinder case tube and the outside of the outer cylinder case tube; and a pressure receiving plate and a spring disposed inside the inner cylinder case tube. Pressure gauge. 前記内筒ケース管の閉口側の内部にスプリング及び開口側の内部に受圧板を配置したことを特徴とした請求項１に記載の圧力計。The pressure gauge according to claim 1, wherein a spring is arranged inside the closed side of the inner case tube and a pressure receiving plate is arranged inside the opening side. 前記内筒ケース管の内部の閉口側に正圧スプリング、開口側に負圧スプリング、両スプリングの間に受圧板を配置したことを特徴とする請求項１に記載の圧力計。2. The pressure gauge according to claim 1, wherein a positive pressure spring is disposed on a closed side of the inner cylinder case tube, a negative pressure spring is disposed on an open side, and a pressure receiving plate is disposed between both springs. 前記外筒ケース管の流体の流入口及び／または流出口にワンタッチ配管接続機構を備えていることを特徴とする請求項１〜３のいずれかに記載の圧力計。The pressure gauge according to any one of claims 1 to 3, wherein a one-touch piping connection mechanism is provided at an inlet and / or outlet of the fluid in the outer case pipe. 両端に流体の流入口及び流出口を有する外筒ケース管、該外筒ケース管の内部に配置された内筒ケース管、該外筒ケース管及び該内筒ケース管の隙間が流出口側で閉口され流入口側で開口され、該内筒ケース管の周りにスプリング及び受圧板が配置され、並びに、該受圧板より閉口側の外筒ケース管に排出ポートが形成されたことを特徴とする圧力計。An outer case pipe having an inlet and an outlet for a fluid at both ends, an inner case pipe disposed inside the outer case pipe, a gap between the outer case pipe and the inner case pipe being located at an outlet side. It is closed and opened on the inlet side, a spring and a pressure receiving plate are arranged around the inner cylinder case tube, and a discharge port is formed in the outer cylinder case tube on the closing side from the pressure receiving plate. Pressure gauge. 前記外筒ケース管の流入口及び／または流出口にワンタッチ配管接続機構を備えていることを特徴とする請求項５に記載の圧力計。The pressure gauge according to claim 5, wherein a one-touch piping connection mechanism is provided at an inflow port and / or an outflow port of the outer case pipe.
JP2003008917A 2003-01-17 2003-01-17 Pressure gauge Expired - Fee Related JP4188709B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006137424A1 (en) * 2005-06-21 2006-12-28 Koganei Corporation Pressure status display device
JP2016512152A (en) * 2013-03-14 2016-04-25 テレフレックス メディカル インコーポレイテッド Sliding piston pressure indicator
CN114323424A (en) * 2021-12-13 2022-04-12 潍柴动力股份有限公司 Dynamic responsiveness detection method and device, electronic device and storage medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006137424A1 (en) * 2005-06-21 2006-12-28 Koganei Corporation Pressure status display device
US7954445B2 (en) 2005-06-21 2011-06-07 Koganei Corporation Pressure state indicator
JP5154929B2 (en) * 2005-06-21 2013-02-27 株式会社コガネイ Pressure status display device
JP2016512152A (en) * 2013-03-14 2016-04-25 テレフレックス メディカル インコーポレイテッド Sliding piston pressure indicator
US9513180B2 (en) 2013-03-14 2016-12-06 Teleflex Medical Incorporated Sliding piston pressure indicator
CN114323424A (en) * 2021-12-13 2022-04-12 潍柴动力股份有限公司 Dynamic responsiveness detection method and device, electronic device and storage medium
CN114323424B (en) * 2021-12-13 2023-09-19 潍柴动力股份有限公司 Dynamic response detection method and device, electronic equipment and storage medium

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