JPS63247641A - Pressure-resistance testing machine for high-pressure hose - Google Patents
Pressure-resistance testing machine for high-pressure hoseInfo
- Publication number
- JPS63247641A JPS63247641A JP62081726A JP8172687A JPS63247641A JP S63247641 A JPS63247641 A JP S63247641A JP 62081726 A JP62081726 A JP 62081726A JP 8172687 A JP8172687 A JP 8172687A JP S63247641 A JPS63247641 A JP S63247641A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pressure
- cylinder
- self
- seal
- 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.)
- Granted
Links
- 239000013013 elastic material Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229920000459 Nitrile rubber Polymers 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は高圧ホースの耐圧試験機に関する、特に耐圧試
験機の加圧シリンダーのセルフシールピストンの構造に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pressure tester for high pressure hoses, and more particularly to the structure of a self-sealing piston of a pressurized cylinder of a pressure tester.
［従来の技術］
第４図は高圧ホースの耐圧試験における盲栓側のシール
治具の断面を示すが、高圧ホースの耐圧試験機に使用さ
れる加圧シリンダーは、第４図に示すように加圧シリン
ダー１０とピストン１３と、摺動面のＯリング１１．１
２からなっており、加圧シリンダー１０の両側へ切換弁
９を用いての圧力空気又は圧力水の供給によりピストン
１３を往復させている。[Prior Art] Fig. 4 shows a cross section of a sealing jig on the blind plug side in a pressure resistance test of a high-pressure hose. Pressurized cylinder 10, piston 13, and O-ring 11.1 on the sliding surface
The piston 13 is reciprocated by supplying pressurized air or water to both sides of the pressurizing cylinder 10 using a switching valve 9.
又、従来の高圧ホースの耐圧試験における高圧ホースの
先端接続チューブ３のシール用として、ピストン１３の
先端へシールチップ１４を使用している。Further, a sealing chip 14 is used at the tip of the piston 13 for sealing the tip connection tube 3 of the high-pressure hose in the conventional high-pressure hose pressure test.
［発明が解決しようとする問題点］
しかしながら耐圧試験機治具の摺動面のＯリング１１．
１２の挿入溝の加工が複雑であり、部品件数が多く、治
具としての製作費が高いのが欠点であった。[Problems to be Solved by the Invention] However, the O-ring 11 on the sliding surface of the pressure tester jig.
The drawbacks were that the machining of the 12 insertion grooves was complicated, the number of parts was large, and the manufacturing cost of the jig was high.
本発明の目的は前記した従来治具の製作費の高いのを解
消すべく、加圧シリンダーに簡便なるセルフシールピス
トンをもった高圧ホースの耐圧試験機を提供することを
目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a high-pressure hose pressure tester having a simple self-sealing piston in a pressurizing cylinder, in order to eliminate the high manufacturing costs of the conventional jigs mentioned above.
［問題点を解決するための手段］
本発明の要旨は高圧ホースの耐圧試験機の加圧シリンダ
ー及びピストンのシールにＯリングを使用しないで、弾
性を有する材質で一体物にしたピストンの構造にある。[Means for Solving the Problems] The gist of the present invention is to eliminate the use of O-rings for the seals of the pressurizing cylinder and piston of a pressure tester for high-pressure hoses, and to create a piston structure that is integrally made of an elastic material. be.
即ち、本発明の目的は高圧ホースの耐圧試験機において
、加圧シリンダーのピストンを弾性を有する材質によっ
て製作し、加圧シリンダーと接触するピストンの摺動面
に半円形突起リング部を有することを特徴とする高圧ホ
ースの耐圧試験機によって達成される。That is, the object of the present invention is to provide a high-pressure hose pressure tester in which the piston of the pressurized cylinder is made of an elastic material, and the sliding surface of the piston that contacts the pressurized cylinder has a semicircular protrusion ring. This is achieved by a high-pressure hose pressure tester featuring the following characteristics.
本発明における高圧ホースの耐圧試験機の加圧シリンダ
ーとは盲栓側の加圧シリンダー兼試験冶貝の場合を例示
したが、圧力供給側の加圧シリンダーも同様に対栗とす
るものである。In the present invention, the pressurizing cylinder of the high pressure hose pressure tester is exemplified as the pressurizing cylinder on the blind plug side and also serving as a test shell, but the pressurizing cylinder on the pressure supply side is also used as a counter. .
本発明における加圧シリンダーのピストンを製作する弾
性を有する物質としては、ニトリル（ＮＢＲ＞ゴム、ウ
レタンゴム（ＡＵ、ＥＬＪ）、ナイロン、テフロン等が
適当である。これらの弾性物質としてはＪＩＳショアＡ
硬度が９０±５のちのが適している。即ち、ショアＡ硬
度が８５以下では変形が大きく逆に９５以上ではシール
性が劣るためである。Suitable elastic materials for manufacturing the piston of the pressurized cylinder in the present invention include nitrile (NBR> rubber, urethane rubber (AU, ELJ), nylon, Teflon, etc. These elastic materials are JIS Shore A
A hardness of 90±5 is suitable. That is, if the Shore A hardness is 85 or less, the deformation will be large, and if the Shore A hardness is 95 or more, the sealing performance will be poor.
本発明における加圧シリンダーと接触するピストンの摺
動面に半円形突起リング部を有するということは、従来
○リング取付けていた位置近くのシリンダ面にそれに相
当する半円形突起リング部を設けることである。In the present invention, having a semicircular protrusion ring part on the sliding surface of the piston that contacts the pressurizing cylinder means that a corresponding semicircular protrusion ring part is provided on the cylinder surface near the position where the ○ ring was conventionally attached. be.
本発明におけるピストンは弾性を有する物質によって製
作する関係上、加圧シリンダー内の圧力のかかる部分は
従来より厚めに、又加圧シリンダー外の先端接続チュー
ブの袋ナツトに当るシール部分を加圧するピストン部分
はピストン径を大きくすることによって、従来のシール
チップなしで作動させるセルフシールピストンとするこ
とが出来る。Since the piston in the present invention is made of an elastic material, the pressure-applying part inside the pressurizing cylinder is thicker than before, and the piston pressurizing the sealing part that hits the cap nut of the end connecting tube outside the pressurizing cylinder. By increasing the piston diameter, the section can be made into a self-sealing piston that operates without a conventional sealing tip.
［作 用〕
本発明は高圧ホースの耐圧試験機において、加圧シリン
ダーのピストンを弾性を有する物質によって製作するこ
とにより、高圧ホースの先９ス；接続チューブの袋ナツ
ト部分を従来のシールチップなしで加圧し、且つシリン
ダー外壁部分のシールはピストンの縦方向の圧縮により
径方向の広がりが増すことによって完全にシールされる
ので、その部分に従来必要とされてきたＯリングによる
バッキングは不必要となる。[Function] The present invention uses a high-pressure hose pressure tester by making the piston of the pressurizing cylinder from an elastic material, so that the tip 9 of the high-pressure hose and the cap nut of the connecting tube can be sealed without the conventional seal tip. , and the seal on the outer wall of the cylinder is completely sealed by increasing the radial expansion due to the vertical compression of the piston, so there is no need for the O-ring backing that was conventionally required in that area. Become.
又シリンダーと接触するピストンの摺動面に半円形突起
リング部を有することにより、ピストンにおける加圧が
進むにつれて弾性を有するピストンの圧縮とともに一層
気！が保たれることになり、０リング不要、シールチッ
プなし等の簡単な構造であっても気密が充分に保たれる
のである。In addition, by having a semicircular protruding ring portion on the sliding surface of the piston that contacts the cylinder, as the pressure in the piston progresses, the elastic piston compresses and becomes even more airy! This means that airtightness can be maintained sufficiently even with a simple structure such as no O-ring or seal chip.
［実 施 例］
次に本発明のセルフシールピストンの実施例を図面によ
り説明する。[Example] Next, an example of the self-sealing piston of the present invention will be described with reference to the drawings.
第３図は高圧ホースの耐圧試験を示す。高圧ホース１の
両端を先端接続チューブ３にかしめ金具２で固定し、先
端接続チューブ３の袋ナツトに一方にネジ込み弐盲栓８
を施し、一方に供給開栓５を施し、圧力発生装置６によ
って圧力配管７を通じて加圧する。通常設計圧力の１．
５倍の圧力をかけ一定時間保持し、洩れを調べる。第１
図は本発明による弾性材料を用いたセルフシールピスト
ンを使用した盲栓側に使用したシール治具の断面を示す
。Figure 3 shows a pressure test of a high pressure hose. Fix both ends of the high pressure hose 1 to the tip connection tube 3 with the caulking fittings 2, and screw it into the cap nut of the tip connection tube 3 on one side to attach the second blind plug 8.
A supply opening 5 is provided on one side, and pressure is applied through a pressure piping 7 by a pressure generating device 6. 1 of the normal design pressure.
Apply 5 times the pressure, hold for a certain period of time, and check for leaks. 1st
The figure shows a cross section of a sealing jig used on the side of a blind plug using a self-sealing piston made of an elastic material according to the present invention.
第２図（ａ）は第１図におけるセルフシールピストン１
５の摺動面１９に半丸膨突起部２０を有するセルフシー
ルピストンの構造を示す側面図である。第１図は金枠８
側をネジ込み方式でなく加圧シリンダーを使用した方式
で、袋ナツト４を治具１６で支え先端接続チューブ３を
セルフシールピストン１５で圧縮してシールを維持して
いる。Figure 2(a) shows the self-sealing piston 1 in Figure 1.
5 is a side view showing the structure of a self-sealing piston having a semi-circular bulging protrusion 20 on the sliding surface 19 of No. 5; FIG. Figure 1 shows gold frame 8
This method uses a pressurized cylinder instead of screwing in the sides, and the cap nut 4 is supported by a jig 16 and the tip connecting tube 3 is compressed by a self-sealing piston 15 to maintain the seal.
加圧シリンダーに摺動するピストン１９には、半円形突
起リング２０が形成されたニトリルゴム製であり、加圧
シリンダー外にセルフシールビス１−ンが突出する出口
には従来のＯリングの取付はない。ピストンが動く場合
は軽く動くがセルフシールピストン先端が先端接続チュ
ーブの圧縮をはじめると、弾性体であるセルフシール１
５ピストンとシリンダーのセルフシー、ルビストン出口
、及び加圧シリンダー１０とピストン１９との間の気密
性が増し、洩れることなく、従って盲栓側の気密は充分
保たれるようになる。第２図（ａ）はピストン１９の摺
動面の内側に穴２１を有し、加圧媒体により摺動部を拡
大させ、更にシール効果を高める場合の構造を示す断面
図である。尚、本発明のセルフシールピストンの適用は
圧力３０８ｙ／ｃ！Ｒ２以下のものに適し、ピストンの
材質もゴムでショアー硬度９０”±５の弾性を有しなけ
ればならない。The piston 19 that slides into the pressurizing cylinder is made of nitrile rubber and has a semicircular protruding ring 20 formed thereon, and a conventional O-ring is attached to the outlet where the self-sealing screw 1-n protrudes outside the pressurizing cylinder. There isn't. When the piston moves, it moves lightly, but when the self-sealing piston tip begins to compress the tip connecting tube, the self-sealing 1, which is an elastic body,
5. The airtightness between the piston and the cylinder self-sea, the Rubiston outlet, and the pressurized cylinder 10 and the piston 19 is increased, and there is no leakage, so that the airtightness on the blind plug side is sufficiently maintained. FIG. 2(a) is a sectional view showing a structure in which a hole 21 is provided inside the sliding surface of the piston 19, and the sliding portion is enlarged by a pressurized medium to further enhance the sealing effect. The self-sealing piston of the present invention is applicable to a pressure of 308y/c! Suitable for R2 or less, the piston material must be rubber and have an elasticity of Shore hardness 90''±5.
し発明の効果］
本発明は高圧ホースの耐圧試験機において、加圧シリン
ダーのピストンを弾性を有する材質によって製作し、シ
リンダーとピストンの慴動面に半円形突起リング部を有
することにより、耐圧試験機治具の構造が簡単になりし
かも圧力洩れのない安価な治具を使用することが出来る
ようになった。[Effects of the Invention] The present invention is a pressure resistance tester for high pressure hoses, in which the piston of the pressurized cylinder is made of an elastic material, and the sliding surfaces of the cylinder and piston have semicircular protruding rings, so that the pressure resistance test can be carried out. The structure of the machine jig has become simpler, and it has become possible to use inexpensive jigs that do not leak pressure.
第１図は本発明の弾性材料を使用したセルフシールピス
トンによる耐圧試験機治具の断面図。第２図は本発明に
よるセルフシールピストンの（ａ）は側面図（ｂ）は断
面図、第３図は高圧ホースの耐圧試験の状況を示す側面
１部断面図、第４図は従来の圧力ホースのシールを第３
図に示すネジ込み方式から加圧シリンダーの方式を使用
した治具の断面図である。
１：高圧ホース、
２：かしめ金具、
３：先端接続チューブ、
４：袋ナツト、
５：供給側柱、
６：圧力発生装置、
７：圧力配管、
８：門枠、
９：切換弁、
１０ニジリンダ−（耐圧試験機治具本体）、１１；Ｏリ
ング、
１２：Ｏリング、
１３：ピストン、
１４：シールチップ、
１５：セルフシールピストン、
１６；耐圧試験機治具、
１７：セルフシールピストン、
１８：
１９：ピストン、
２０：半円型突起リング。
ｖ、１ 日
第 ２ 図FIG. 1 is a sectional view of a pressure tester jig using a self-sealing piston using the elastic material of the present invention. Figure 2 shows (a) a side view and (b) a sectional view of the self-sealing piston according to the present invention, Figure 3 is a partially sectional side view showing the situation of a pressure test of a high-pressure hose, and Figure 4 shows a conventional pressure test. Seal the hose 3rd
FIG. 3 is a cross-sectional view of a jig using the pressurized cylinder method instead of the screw-in method shown in the figure. 1: High pressure hose, 2: Clamping fitting, 3: Tip connection tube, 4: Cap nut, 5: Supply side column, 6: Pressure generator, 7: Pressure piping, 8: Gate frame, 9: Switching valve, 10 Niji cylinder - (Pressure tester jig main body), 11; O-ring, 12: O-ring, 13: Piston, 14: Seal chip, 15: Self-seal piston, 16; Pressure tester jig, 17: Self-seal piston, 18 : 19: Piston, 20: Semicircular protrusion ring. v, 1st day 2nd figure
Claims (1)
ーのピストンを弾性を有する材質によつて製作し、加圧
シリンダーと接触するピストンの摺動面に半円形突起リ
ング部を有することを特徴とする高圧ホースの耐圧試験
機。(1) In a pressure tester for high pressure hoses, the piston of the pressure cylinder is made of an elastic material, and the sliding surface of the piston that comes into contact with the pressure cylinder has a semicircular protruding ring part. A pressure tester for high pressure hoses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62081726A JPH0619316B2 (en) | 1987-04-02 | 1987-04-02 | High voltage hose pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62081726A JPH0619316B2 (en) | 1987-04-02 | 1987-04-02 | High voltage hose pressure tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63247641A true JPS63247641A (en) | 1988-10-14 |
| JPH0619316B2 JPH0619316B2 (en) | 1994-03-16 |
Family
ID=13754417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62081726A Expired - Lifetime JPH0619316B2 (en) | 1987-04-02 | 1987-04-02 | High voltage hose pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619316B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633278A (en) * | 2014-12-31 | 2015-05-20 | 华中科技大学 | Pressure tube pressure testing device capable of being disassembled and assembled rapidly |
| CN105606458A (en) * | 2016-03-01 | 2016-05-25 | 青岛迪玛尔海洋工程有限公司 | Two-time pressurization testing machine and method |
| CN114636615A (en) * | 2022-05-18 | 2022-06-17 | 太原理工大学 | Clamp for local buckling test of thin-wall hose under compressive load |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556179A (en) * | 1978-06-29 | 1980-01-17 | Ebara Mfg | Absorption refrigerating machine |
| JPS57159140U (en) * | 1981-03-31 | 1982-10-06 | ||
| JPS6064237U (en) * | 1983-10-12 | 1985-05-07 | 三菱重工業株式会社 | Rubber plug for screwing |
-
1987
- 1987-04-02 JP JP62081726A patent/JPH0619316B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556179A (en) * | 1978-06-29 | 1980-01-17 | Ebara Mfg | Absorption refrigerating machine |
| JPS57159140U (en) * | 1981-03-31 | 1982-10-06 | ||
| JPS6064237U (en) * | 1983-10-12 | 1985-05-07 | 三菱重工業株式会社 | Rubber plug for screwing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633278A (en) * | 2014-12-31 | 2015-05-20 | 华中科技大学 | Pressure tube pressure testing device capable of being disassembled and assembled rapidly |
| CN105606458A (en) * | 2016-03-01 | 2016-05-25 | 青岛迪玛尔海洋工程有限公司 | Two-time pressurization testing machine and method |
| CN105606458B (en) * | 2016-03-01 | 2023-07-21 | 青岛迪玛尔海洋工程有限公司 | Secondary pressurization testing machine and testing method |
| CN114636615A (en) * | 2022-05-18 | 2022-06-17 | 太原理工大学 | Clamp for local buckling test of thin-wall hose under compressive load |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619316B2 (en) | 1994-03-16 |
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