JP2502051Y2 - Refueling hose connection - Google Patents
Refueling hose connectionInfo
- Publication number
- JP2502051Y2 JP2502051Y2 JP1989024506U JP2450689U JP2502051Y2 JP 2502051 Y2 JP2502051 Y2 JP 2502051Y2 JP 1989024506 U JP1989024506 U JP 1989024506U JP 2450689 U JP2450689 U JP 2450689U JP 2502051 Y2 JP2502051 Y2 JP 2502051Y2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- refueling
- main body
- fitted
- oil supply
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、例えば、ガソリン、軽油、灯油、メタノー
ル等の給油ホースの接続具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a connector for a fuel supply hose such as gasoline, light oil, kerosene, or methanol.
従来の上記接続具は、第５図に示すように、他の接続
具（３），（13）に対して連結及び離脱自在な連結部
（14）を一端側に備えると共に、他端側に給油ホース
（４）に内嵌するホース取付部（15）を備えた金属製の
接続具本体（16）を設け、前記接続具本体（16）とは別
部材で、且つ給油ホース（４）に外嵌する金属筒（20）
を設けてあった。As shown in FIG. 5, the above-mentioned conventional connecting tool has a connecting portion (14) which can be connected to and disconnected from other connecting tools (3) and (13) on one end side and on the other end side. A metal connector main body (16) provided with a hose mounting portion (15) to be fitted in the oil supply hose (4) is provided, and the metal connection tool main body (16) is a separate member and the oil supply hose (4) is provided. Metal tube to be fitted (20)
Was provided.
しかし、ホース取付部（15）の内径（Ａ）は、給油ホ
ース（４）に内嵌させるために、給油ホース（４）の内
径（Ｂ）よりも小さくせざるを得ず、そのためにホース
取付部（15）内を通るガソリン等に対しての流動抵抗を
与え、流量が低下するという問題があった。However, the inner diameter (A) of the hose mounting portion (15) must be smaller than the inner diameter (B) of the oil supply hose (4) in order to fit it inside the oil supply hose (4). There was a problem that the flow rate was reduced by giving flow resistance to gasoline or the like passing through the section (15).
そこで、給油の流量を低下させないように、ホース取
付部（15）を給油ホース（４）に内嵌させた後、拡径さ
せて給油ホース（４）と内径をほぼ等しくすることが考
えられるが、この場合、ホース取付部（15）を拡径させ
られるようにするためには、接続具本体（15）を、より
軟質の金属で成形しなければならず、他の接続具
（３），（13）に対する連結及び離脱のための強度や、
連結部（14）における集中応力に対する強度が弱く、耐
久性が劣りやすいという問題があった。これに対し、ホ
ース取付部を給油ホースに外嵌させ、前記給油ホースの
内部に軟質の管を内挿して、この管を拡径する（例え
ば、実公昭63−18876号公報参照）ことも考えられる
が、給油ホースは、給油設備の安全性維持のために、そ
の先端に取付けられる給油器具が電気的にアース接続さ
れていなければならないので、給油ホース内にはアース
用ワイヤが埋設されており、このアース用ワイヤが接続
具を介して給油ホースの両端部に取付けられる接続具に
電気的に低抵抗で接続されていなければならず、そのた
めには、給油ホースとホース取付部との間にパッキン等
の絶縁物を介在させることは出来ず、しかも、一般に肉
厚内に補強層を形成してある給油ホースの端部から補強
層にガソリン等が侵入して、給油ホースを膨潤劣化させ
ることも防止しなければならないという問題が残存して
いる。Therefore, it is conceivable to fit the hose mounting portion (15) into the fuel supply hose (4) and then expand the diameter to make the inner diameter of the fuel supply hose (4) substantially equal so as not to reduce the flow rate of the fuel supply. In this case, in order to be able to expand the diameter of the hose attachment portion (15), the connector main body (15) must be molded of a softer metal, and the other connector (3), Strength for connecting and disconnecting with (13),
There is a problem in that the strength of the connecting portion (14) against the concentrated stress is weak and the durability tends to deteriorate. On the other hand, it is conceivable to fit the hose mounting portion onto the refueling hose, insert a soft pipe inside the refueling hose, and expand the diameter of the pipe (see, for example, Japanese Utility Model Publication No. 63-18876). However, in order to maintain the safety of refueling equipment, the refueling hose must be electrically grounded to the refueling equipment attached to the tip of the refueling hose.Therefore, a grounding wire is embedded in the refueling hose. , This ground wire must be electrically connected to the fittings attached to both ends of the refueling hose via the fitting with low electrical resistance, and for that purpose, between the refueling hose and the hose mounting part. Insulation such as packing cannot be interposed, and in addition, gasoline or the like generally enters the reinforcing layer from the end of the refueling hose that has a reinforcing layer formed within the wall thickness, causing the refueling hose to swell and deteriorate. Also prevent The problem of having to stop remains.
本考案の目的は、給油の流量を低下させないようにし
つつ、耐久性を高く維持し、かつ、給油ホースの両端部
間の電気的接続性能を維持して、給油ホースの安全性、
ひいては給油設備の安全性を高める点にある。The purpose of the present invention is to maintain the durability of the refueling hose at a high level while maintaining the electrical connection performance between both ends of the refueling hose, while maintaining the safety of the refueling hose,
As a result, the safety of the refueling equipment is improved.
本考案における給油ホースの接続具の特徴構成は、他
の接続具に対して連結及び離脱自在な連結部を一端側に
備えると共に、アース用ワイヤを肉厚内に巻回してある
給油ホースに外嵌するホース取付部を他端側に備えた金
属製の接続具本体と、その接続具本体とは別部材で、且
つ、前記給油ホースに内嵌可能な金属製の拡径用筒部材
とを備え、前記拡径用筒部材の一端側に設けた嵌合部を
前記接続具本体に内嵌させて、前記ホース取付部の基端
の内面に、前記アース用ワイヤに対する圧接部を形成
し、前記嵌合部の周部と前記接続具本体の間をロウ付け
により全周にわたってシールした状態で前記拡径用筒部
材を前記接続具本体に一体的に取付けてあることにあ
り、その作用効果は、次の通りである。The characteristic structure of the connecting tool of the refueling hose of the present invention is such that a connecting portion that can be connected to and disconnected from other connecting tool is provided at one end side, and an earthing wire is externally attached to the refueling hose wound inside the wall thickness. A metallic connector main body having a hose mounting portion to be fitted on the other end side, and a metallic member for expanding the diameter, which is a member separate from the connector main body and which can be internally fitted to the refueling hose. Comprising, by fitting the fitting portion provided on one end side of the diameter-expanding tubular member into the connector main body, an inner surface of the base end of the hose mounting portion is formed with a pressure contact portion for the ground wire, The diameter-expanding tubular member is integrally attached to the connector body with the circumference of the fitting portion and the connector body being sealed by brazing over the entire circumference. Is as follows.
つまり、給油ホースを接続具に取付けるには、ホース
取付部と拡径用筒部材との間にアース用ワイヤを肉厚内
に巻回してある給油ホースを嵌合させて、前記給油ホー
スの端面を前記ホース取付部の基端の内面に圧接した
後、筒部材を拡径させるだけでよく、簡単に取付けら
れ、給油ホースの外周部をホース取付部の内面に強く押
付けて、給油ホースと接続具本体との連結を強固にする
ことができると共に、前記給油ホースの端面に露出する
アース用ワイヤが前記基端の内面に形成された圧接部に
接当することにより、前記接続具本体に接続された器具
が前記アース用ワイヤを介して確実に給油装置側にアー
ス接続できるようになる。さらに、前記拡径用筒部材が
前記接続具本体に内嵌されて、前記接続具本体との間を
ロウ付けにより全周にわたってシールした状態で前記接
続具本体に一体的に取付けてあるので、前記拡径用筒部
材と前記接続具本体との間のシールは確実であり、前記
給油ホースの端面と前記基端の内面との間にガソリン等
の油の漏れ込むことを阻止でき、従って、前記給油ホー
スのホース端部から補強層へのガソリン等の浸入に伴っ
て生じる前記給油ホースの膨潤劣化を防止することがで
き、さらに、その膨潤によって、前記アース用ワイヤが
前記基端の内面から離間させられ、前記アース用ワイヤ
と前記圧接部との間に油が侵入して、前記アース接続が
不良になることを防止できる。That is, in order to attach the refueling hose to the connecting tool, the refueling hose in which the ground wire is wound in the wall thickness is fitted between the hose mounting portion and the diameter-expanding cylinder member, and the end face of the refueling hose is fitted. After pressing the inner surface of the base end of the hose mounting part, simply expanding the diameter of the tubular member, it can be easily mounted, and the outer peripheral part of the refueling hose is strongly pressed against the inner surface of the hose mounting part to connect with the refueling hose. It is possible to strengthen the connection with the tool body and connect it to the connection tool body by contacting the ground wire exposed on the end surface of the refueling hose with the pressure contact portion formed on the inner surface of the base end. The appliance thus installed can be surely grounded to the oil supply device side via the grounding wire. Further, since the diameter-expanding tubular member is fitted into the connector main body, and is integrally attached to the connector main body in a state of being sealed over the entire circumference by brazing with the connector main body, The seal between the diameter-expanding tubular member and the connector body is reliable, and it is possible to prevent oil such as gasoline from leaking between the end surface of the fuel supply hose and the inner surface of the base end, and thus, It is possible to prevent swelling deterioration of the refueling hose that occurs due to infiltration of gasoline or the like from the hose end portion of the refueling hose into the reinforcing layer, and further, by the swelling, the grounding wire from the inner surface of the base end It is possible to prevent the oil from penetrating between the ground wire and the pressure contact portion and making the ground connection defective due to the separation.
従って、拡径用筒部材を、拡径させやすいように軟質
の金属で成形したとしても、接続具本体を、より硬質の
金属で成形できるために、他の接続具と連結させる連結
部を備えた接続具本体全体の強度を上げて、耐久性を高
く維持することができながら、接続具本体に対し、拡径
用筒部材の一端側周部を、ロウ付けによりその全周にわ
たってシールした状態で取付部けてあるために、給油ホ
ース自体の耐久性とともに、前記給油ホースに取付けら
れる給油器具の電気的なアース接続を良好に維持し、給
油ホースの安全性、ひいては給油設備の安全性を高く維
持させることができるようになった。Therefore, even if the diameter-expanding tubular member is formed of a soft metal so that the diameter can be easily expanded, the connector main body can be formed of a harder metal, and therefore a connecting portion for connecting with another connecting tool is provided. While the strength of the entire connector body can be increased and high durability can be maintained, one end side peripheral portion of the diameter expanding tubular member is sealed to the connector body over the entire circumference by brazing. Since the mounting part is attached, the oil supply hose itself is durable, and the electrical ground connection of the oil supply equipment attached to the oil supply hose is maintained well, thus ensuring the safety of the oil supply hose and the safety of the oil supply equipment. You can keep it high.
次に本考案の実施例を、図面に基づいて説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
第３図は、ガソリンスタンドに設置されるガソリン供
給装置（１）を示すもので、ガソリン計量機（２）に取
付けた金属製の計量機用接続具（３）に対して、接続具
（11）を介して可撓性の給油ホース（４）の一端を接続
し、その給油ホース（４）の遊端には、接続具（12）を
介して給油ノズル（５）に取付けた接続具（13）に対し
て取付けてあり、自動車のガソリン供給口へ給油ノズル
（５）を移動して給油できる様に構成してある。尚、
（６）は、給油量を表示するカウンターである。FIG. 3 shows a gasoline supply device (1) installed at a gas station, which is connected to a metallic measuring instrument connector (3) attached to a gasoline weighing machine (2). ) Is connected to one end of a flexible oil supply hose (4), and the free end of the oil supply hose (4) is connected to the oil supply nozzle (5) via the connection tool (12). It is attached to 13) and is configured so that the fueling nozzle (5) can be moved to the gasoline supply port of the automobile for refueling. still,
(6) is a counter that displays the amount of refueling.
前記給油ホース（４）は、第１図に示すように、黒色
のゴム層（８）の肉厚内中間部に補強糸による編組から
成る補強層（７）と、周方向に螺旋状に巻回するアース
用のワイヤ（10）とを設けて、耐圧ホースを形成してあ
る。As shown in FIG. 1, the refueling hose (4) is spirally wound in the circumferential direction with a reinforcing layer (7) made of a braid of reinforcing yarn in the middle part of the thickness of the black rubber layer (8). A pressure resistant hose is formed by providing a rotating ground wire (10).
前記給油ホース（４）の接続具（11），（12）は第１
図に示すように、他の接続具（３），（13）に対して連
結及び離脱自在なネジ嵌合式の連結部（14）を一端側に
備えると共に、他端側に給油ホース（４）に外嵌するホ
ース取付部（15）を備えた金属製の接続具本体（16）に
対し、給油ホース（４）に内嵌する金属製の拡径用筒部
材（17）の一端側に設けた嵌合部（19）を内嵌して、そ
の周部を、ロウ付けによって、その全周にわたってシー
ルした状態で取付けてある。The connecting tools (11), (12) of the fueling hose (4) are the first
As shown in the figure, one end is provided with a screw fitting type connecting part (14) that can be connected to and disconnected from the other connecting tools (3) and (13), and an oil supply hose (4) is provided at the other end. Provided at one end side of a metal diameter-expanding tubular member (17) to be internally fitted to an oil supply hose (4) with respect to a metal connector main body (16) having a hose mounting portion (15) to be externally fitted to The fitting portion (19) is fitted inside, and the peripheral portion thereof is attached by brazing in a sealed state over the entire circumference.
前記接続具（11），（12）夫々の連結部（14），（1
4）は、他の接続具（３），（13）に対して各別にネジ
嵌合するように、その一方を雄ネジに、他方を雌ネジに
形成してある。The connecting parts (14), (1) of the connecting tools (11), (12) respectively.
4) is formed with one male thread and the other female thread so that the other fittings (3) and (13) can be individually screw-fitted.
前記筒部材（17）は、その嵌合部（19）以外の部分の
外径（Ｃ）を、給油ホース（４）の内径（Ｂ）よりも小
径に形成してあり、第２図に示すように、給油ホース
（４）を外嵌した後に、拡径具（図外）を内側に挿入し
て拡径変形させることによって、筒部材（17）の内径
（Ｄ）を、給油ホース（４）の内径（Ｂ）とほぼ同径に
させられるように、接続具本体（16）よりも軟質の金属
で成形してある。The tubular member (17) is formed such that the outer diameter (C) of the portion other than the fitting portion (19) is smaller than the inner diameter (B) of the oil supply hose (4), as shown in FIG. As described above, after the refueling hose (4) is externally fitted, the inner diameter (D) of the tubular member (17) is changed by inserting the diametrical expander (not shown) into the inside to deform the diametrical expansion. The inner diameter (B) of () is made of a softer metal than the connector main body (16).
前記筒部材（17）の外周部及びホース取付部（15）の
内周部には、夫々、給油ホース（４）の内、外周面に食
い込んで給油ホース（４）の抜け止め作用を発揮する係
止突起（18）を、複数設けてある。The outer peripheral portion of the tubular member (17) and the inner peripheral portion of the hose mounting portion (15) respectively dig into the outer peripheral surface of the refueling hose (4) to exert a retaining action on the refueling hose (4). A plurality of locking protrusions (18) are provided.
尚前記給油ホース（４）を、筒部材（17）とホース取
付部（15）との間に嵌合させる際には、ワイヤ（10）が
接続具本体（16）に密接させて、ガソリン計量機（２）
にアースさせられるように、給油ホース（４）の端部を
ホース取付部（15）の基端（Ｆ）の内面に押付ける。When the refueling hose (4) is fitted between the tubular member (17) and the hose mounting portion (15), the wire (10) is brought into close contact with the connector body (16) to measure gasoline. Machine (2)
The end of the oil supply hose (4) is pressed against the inner surface of the base end (F) of the hose attachment (15) so that it can be grounded.
本考案の給油ホース（４）の接続具（11），（12）
は、ガソリンを給油するホース以外に、軽油、灯油、メ
タノール等を給油するためのホースに対するものであ
る。Connection tool (11), (12) for refueling hose (4) of the present invention
Is for a hose for refueling light oil, kerosene, methanol, etc. in addition to a hose for refueling gasoline.
前記筒部材（17）は、接続具本体（16）に対して、ロ
ウ付け以外に、接着材及び第４図に示すように嵌合部
（19）に設けたネジ等によるネジ嵌合等によって取付け
てあっても良い。尚、第４図中の（21）はシール用のＯ
リングである。The tubular member (17) is attached to the connector main body (16) by brazing, as well as by an adhesive and screw fitting, such as a screw provided in the fitting portion (19) as shown in FIG. It may be installed. Incidentally, (21) in FIG. 4 is an O for sealing.
It is a ring.
前記給油ホースは、ゴム製以外に合成樹脂製であって
も良い。The refueling hose may be made of synthetic resin instead of rubber.
尚、実用新案登録請求の範囲の項に図面との対照を便
利にする為に符号を記すが、該記入により本考案は添付
図面の構造に限定されるものではないIt should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the invention is not limited to the structure of the attached drawings by the entry.
図面は本考案に係る給油ホースの接続具の実施例を示
し、第１図は接続具及び給油ホースの断面図、第２図は
給油ホースに取付けた接続具の断面図、第３図はガソリ
ン供給装置の全体斜視図、第４図は別実施例の要部断面
図、第５図は従来例を示す接続具の断面図である。 （３），（13）……接続具、（４）……給油ホース、
（14）……連結部、（15）……ホース取付部、（16）…
…接続具本体、（17）……筒部材、（19）……嵌合部。The drawings show an embodiment of a connecting tool for a refueling hose according to the present invention. Fig. 1 is a sectional view of the connecting tool and the refueling hose, Fig. 2 is a sectional view of the connecting tool attached to the refueling hose, and Fig. 3 is gasoline. FIG. 4 is an overall perspective view of the supply device, FIG. 4 is a cross-sectional view of an essential part of another embodiment, and FIG. 5 is a cross-sectional view of a connector showing a conventional example. (3), (13) ... connector, (4) ... refueling hose,
(14) …… Connecting part, (15) …… Hose mounting part, (16)…
… Connector body, (17) …… Cylinder member, (19) …… Mating part.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−159492（ＪＰ，Ａ) 実開 昭58−79186（ＪＰ，Ｕ) 実開 昭59−10588（ＪＰ，Ｕ) 実公 昭32−750（ＪＰ，Ｙ１) 実公 昭63−18876（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2-159492 (JP, A) Actually open 58-79186 (JP, U) Actually open 59-10588 (JP, U) Actual public 32- 750 (JP, Y1) Actual public Sho 63-18876 (JP, Y2)
Claims (1)
び離脱自在な連結部（14）を一端側に備えると共に、ア
ース用ワイヤ（10）を肉厚内に巻回してある給油ホース
（４）に外嵌するホース取付部（15）を他端側に備えた
金属製の接続具本体（16）と、その接続具本体（16）と
は別部材で、且つ、前記給油ホース（４）に内嵌可能な
金属製の拡径用筒部材（17）とを備え、前記筒部材（1
7）の一端側に設けた嵌合部（19）を前記接続具本体（1
6）に内嵌させて、前記ホース取付部（15）の基端
（Ｆ）の内面に、前記アース用ワイヤ（10）に対する圧
接部を形成し、前記嵌合部（19）の周部と前記接続具本
体（16）の間をロウ付けにより全周にわたってシールし
た状態で前記筒部材（17）を前記接続具本体（16）に一
体的に取付けてある給油ホースの接続具1. A connecting portion (14) which can be connected to and detached from other connecting tools (3) and (13) is provided at one end side, and a grounding wire (10) is wound within a wall thickness. A metallic connector main body (16) having a hose mounting portion (15) fitted on the refueling hose (4) on the other end side, and a member separate from the connector main body (16), and A tubular member (17) for expanding the diameter, which is made of metal and can be fitted in the oil supply hose (4),
The fitting portion (19) provided on one end side of (7) is connected to the connector main body (1).
6) is internally fitted to the inner surface of the base end (F) of the hose mounting portion (15) to form a pressure contact portion with respect to the ground wire (10), and the peripheral portion of the fitting portion (19). A connecting tool for an oil supply hose in which the tubular member (17) is integrally attached to the connecting tool body (16) in a state where the connecting tool body (16) is sealed by brazing over the entire circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989024506U JP2502051Y2 (en) | 1989-03-02 | 1989-03-02 | Refueling hose connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989024506U JP2502051Y2 (en) | 1989-03-02 | 1989-03-02 | Refueling hose connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02116094U JPH02116094U (en) | 1990-09-17 |
| JP2502051Y2 true JP2502051Y2 (en) | 1996-06-19 |
Family
ID=31244410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989024506U Expired - Lifetime JP2502051Y2 (en) | 1989-03-02 | 1989-03-02 | Refueling hose connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2502051Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321872A (en) * | 2006-05-31 | 2007-12-13 | Sekisui Chem Co Ltd | Pipe fitting and pipe connection structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5879186U (en) * | 1981-11-25 | 1983-05-28 | 大川精螺工業株式会社 | Brake hose fitting |
| JPS5910588U (en) * | 1982-07-10 | 1984-01-23 | 豊田合成株式会社 | hose fitting |
| JPH0534143Y2 (en) * | 1986-07-22 | 1993-08-30 | ||
| JP2685855B2 (en) * | 1988-12-14 | 1997-12-03 | 株式会社ブリヂストン | Hose fittings |
-
1989
- 1989-03-02 JP JP1989024506U patent/JP2502051Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321872A (en) * | 2006-05-31 | 2007-12-13 | Sekisui Chem Co Ltd | Pipe fitting and pipe connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02116094U (en) | 1990-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7080860B2 (en) | Fastening structure for end of hose with corrugated metal tube | |
| US3423109A (en) | Hose fitting | |
| US2833567A (en) | Fitting for reinforced hose with seal maintaining means | |
| US4313628A (en) | Coupling for hoses and similar conduits | |
| JPS5917316B2 (en) | branch pipe fitting | |
| CA2496012A1 (en) | Fitting for textile reinforced hose | |
| US5934711A (en) | Mold shot riser element with O-ring sealing | |
| JP3431630B2 (en) | Hose with protector | |
| JP2502051Y2 (en) | Refueling hose connection | |
| CN210462069U (en) | Self-sealing gas pipe joint | |
| US4066283A (en) | High pressure insulated coupling | |
| CA2343585A1 (en) | Fuel hose connection structure and fuel hose | |
| US3936081A (en) | Pipe joint and method of making same | |
| US3956817A (en) | Method of making a pipe joint | |
| CN217784471U (en) | Pipeline connecting device and high-pressure cleaning machine | |
| JP4082550B2 (en) | Manhole flexible joint mounting structure and manhole flexible joint | |
| CN210106775U (en) | Stainless steel corrugated pipe with threaded connector for gas appliance | |
| JP2756952B2 (en) | Branch pipe fitting | |
| CN212131684U (en) | Assembled quick-connecting elbow | |
| KR200396607Y1 (en) | Gas hose connecting structure | |
| CN219102327U (en) | High-pressure transition joint assembly | |
| JP2007198601A (en) | Conversion joint and its manufacture | |
| CN220688343U (en) | Rubber pipe buckling joint structure with double sealing structures | |
| JP3677339B2 (en) | Corrugate pipe joint | |
| JP2000161553A (en) | Pipe joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |