JPH0579184U - Pipe connection structure - Google Patents

Abstract

(57)【要約】 【目的】 速やかな配管接続が可能であるとともに、構
造簡単かつ安価である。 【構成】 配管先端３１を開口１１内に挿入すると、そ
の外周に設けたソケット部材４の案内面４１により保持
溝１２に収納したリング体２が押し拡げられてソケット
部材４が進入し、係止溝４２が至るとリング体２は再び
原形に縮小して、その内周部が係止溝４２内に嵌入す
る。これにより、配管３の抜けが防止されて確実に接続
固定される。配管３の接続を解消する場合には、開口１
１外へ露出するリング体２の両端部２１を互いに離間す
る方向へ引くと、リング体２が拡径変形して係止溝４２
より外れ、ソケット部材４が離脱可能となる。 (57) [Summary] [Purpose] Quick piping connection is possible, and the structure is simple and inexpensive. [Structure] When the pipe tip 31 is inserted into the opening 11, the ring member 2 housed in the holding groove 12 is expanded by the guide surface 41 of the socket member 4 provided on the outer periphery thereof, and the socket member 4 enters and locks. When the groove 42 is reached, the ring body 2 is reduced to its original shape again, and the inner peripheral portion thereof is fitted into the locking groove 42. As a result, the pipe 3 is prevented from coming off and is securely connected and fixed. When disconnecting the connection of the pipe 3, the opening 1
1 When both end portions 21 of the ring body 2 exposed to the outside are pulled in a direction in which they are separated from each other, the ring body 2 is expanded and deformed, and the locking groove 42 is formed.
Further, the socket member 4 becomes detachable, and the socket member 4 can be detached.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は配管接続構造に関し、特に接続容易で低コストの配管接続構造に関す る。 The present invention relates to a pipe connection structure, and more particularly to a pipe connection structure that is easy to connect and low cost.

【０００２】[0002]

【従来の技術】[Prior Art]

図６に従来の接続構造の一例を示す。図はフレア継手であり、油圧機器１に設 けた矩形凹状の配管接続用開口１１には、底壁の油流路１４の開口縁にユニオン ７２が配設され、配管３の先端開口縁をフレア状に拡径せしめて上記ユニオン７ ２に圧接せしめた状態で、配管３の外周に装着したフレアナット７１を接続用開 口１１内周のネジ部１１ａにねじ込み固定している。 FIG. 6 shows an example of a conventional connection structure. The figure shows a flare joint, in which a rectangular concave pipe connection opening 11 provided in the hydraulic device 1 is provided with a union 72 at the opening edge of the oil passage 14 on the bottom wall, and flares the tip opening edge of the pipe 3. The flare nut 71 mounted on the outer circumference of the pipe 3 is screwed and fixed to the threaded portion 11a on the inner circumference of the connection opening 11 in a state in which the flare nut 71 is expanded in diameter and pressed against the union 72.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

ところで、車両の油圧配管等においては、油圧機器の取付け誤差等により、こ れに設けた配管接続用開口１１の位置が定まらず自動化が困難なため、フレアナ ットのねじ込みはインパクトレンチ等を使用した作業者の手作業に頼っており、 作業に手間取るという問題があった。 By the way, in the hydraulic piping of the vehicle, the position of the piping connection opening 11 provided in this is not fixed due to mounting errors of hydraulic equipment, etc., and automation is difficult, so use an impact wrench or the like to screw the flare nut. However, there is a problem that it takes time to perform the work.

【０００４】 一方、他の産業用機械や航空機等において、ワンタッチ式の配管接続構造が使 用されているが、構造が複雑で高価であるという問題がある。On the other hand, one-touch type pipe connection structure is used in other industrial machines, aircrafts, etc., but there is a problem that the structure is complicated and expensive.

【０００５】 本考案はかかる課題を解決するもので、速やかな配管接続が可能であるととも に、構造簡単かつ安価な配管接続構造を提供することを目的とする。The present invention solves such a problem, and an object of the present invention is to provide a pipe connection structure that allows quick pipe connection and is simple in structure and inexpensive.

【０００６】[0006]

【課題を解決するための手段】[Means for Solving the Problems]

本考案の構成を説明すると、配管接続用開口１１の内周壁全周に保持溝１２を 形成して該保持溝１２内に、内周部を壁面より突出せしめてバネ材よりなる欠円 形のリング体２を設けるとともに、上記保持溝１２の一部に切欠き部１３を形成 して上記リング体２の両端部２１，２２を配管接続用開口１１外へ露出せしめ、 一方、配管３の先端３１外周には上記配管接続用開口１１の内径にほぼ等しい外 径のソケット部材４を設けて、該ソケット部材４の外周に、先端方向へ縮径する テーパ状案内面４１を形成し、かつ、案内面４１に続く上記ソケット部材４の基 端外周に上記リング体２とほぼ同幅でその内周部を受け入れる係止溝４２を形成 したものである。 The structure of the present invention will be described. A holding groove 12 is formed on the entire circumference of the inner peripheral wall of the pipe connection opening 11, and the inner peripheral portion of the holding groove 12 is protruded from the wall surface so that the holding groove 12 is formed of a spring material. The ring body 2 is provided, and the notch 13 is formed in a part of the holding groove 12 to expose both end portions 21 and 22 of the ring body 2 to the outside of the pipe connection opening 11. On the other hand, the tip of the pipe 3 is formed. A socket member 4 having an outer diameter substantially equal to the inner diameter of the pipe connecting opening 11 is provided on the outer periphery of the pipe 31, and a tapered guide surface 41 is formed on the outer periphery of the socket member 4 so as to reduce its diameter in the distal direction. On the outer periphery of the base end of the socket member 4 following the guide surface 41, a locking groove 42 having substantially the same width as that of the ring body 2 and for receiving the inner peripheral portion thereof is formed.

【０００７】[0007]

【作用】[Action]

上記構成の配管接続構造において、配管先端３１を開口１１内に挿入すると、 外周に設けたソケット部材４のテーパ状案内面４１によりリング体２が押し拡げ られてソケット部材４がこれに進入し、係止溝４２が至るとリング体２は再び原 形に縮小して、その内周部が係止溝４２内に嵌入する。これにより、配管３は抜 けが防止されて確実に接続固定される。 In the pipe connection structure having the above-mentioned configuration, when the pipe tip 31 is inserted into the opening 11, the ring-shaped body 2 is expanded by the tapered guide surface 41 of the socket member 4 provided on the outer periphery, and the socket member 4 enters this. When the locking groove 42 is reached, the ring body 2 is reduced to its original shape again, and the inner peripheral portion thereof is fitted into the locking groove 42. As a result, the pipe 3 is prevented from being pulled out and is securely connected and fixed.

【０００８】 配管３の接続を解消する場合には、開口１１外へ露出するリング体２の両端部 ２１，２２を互いに離間する方向へ引くと、リング体２が拡径変形して係止溝４ ２より外れ、ソケット部材４が離脱される。When the connection of the pipe 3 is released, when the both ends 21 and 22 of the ring body 2 exposed to the outside of the opening 11 are pulled in a direction in which they are separated from each other, the ring body 2 is expanded and deformed, and the locking groove. 42, and the socket member 4 is detached.

【０００９】[0009]

【実施例】【Example】

図１において、油圧機器１の油流路１４の端部は外方へ段付きに拡径して配管 接続用開口１１となっており、該開口１１内に筒状ソケット部材４が嵌入される 。ソケット部材４は、配管３の先端外周に液密に固定され、このソケット部材４ の端面には、略円形状のフランジ体６が設けられている。ソケット部材４の外径 は上記開口１１の内径にほぼ等しく、その先端部外周に配設したＯリング５が開 口１１内周に接して液密性が保持されている。 In FIG. 1, the end portion of the oil flow path 14 of the hydraulic device 1 is expanded outwardly in a stepwise manner to form a pipe connection opening 11, and the tubular socket member 4 is fitted into the opening 11. .. The socket member 4 is liquid-tightly fixed to the outer circumference of the tip of the pipe 3, and a substantially circular flange body 6 is provided on the end surface of the socket member 4. The outer diameter of the socket member 4 is substantially equal to the inner diameter of the opening 11, and the O-ring 5 arranged on the outer circumference of the tip portion thereof is in contact with the inner circumference of the opening 11 to maintain liquid tightness.

【００１０】 上記ソケット部材４の中間部外周は先端方向へ漸次縮径するテーパ状の案内面 ４１となっており、案内面４１に続く基端部の外周には全周に係止溝４２が形成 されて、ここにリング体２の内周部が嵌入している。リング体２はバネ材より構 成されて、円周上の下端が開放された欠円形をなし、両端部はリング体２の円形 面に対して直角方向に屈曲され、その円形面は開口１１の内周壁全周に形成した 保持溝１２内に嵌装収納されている。The outer periphery of the intermediate portion of the socket member 4 is a tapered guide surface 41 that gradually decreases in diameter in the distal direction, and a locking groove 42 is formed on the entire outer periphery of the base end portion following the guide surface 41. It is formed and the inner peripheral portion of the ring body 2 is fitted therein. The ring body 2 is made of a spring material and has a truncated circular shape whose lower end on the circumference is open. Both ends are bent in a direction perpendicular to the circular surface of the ring body 2, and the circular surface has an opening 11. It is fitted and stored in a holding groove 12 formed on the entire circumference of the inner peripheral wall of the.

【００１１】 保持溝１２は下端部が切り欠かれて開口１１外と通じ、この切欠き部１３にリ ング体２の両端部２１，２２が位置して（図２）、開口１１外へ屈曲突出してい る。ソケット部材４の端面に接して設けてある上記フランジ体６は開口１１の外 端縁に沿う円形をなし、その上端部は径方向外方へ突出する回り止め凸部６１と なって、開口外端縁の同形の凹所１５と嵌合している。The lower end of the holding groove 12 is cut out and communicates with the outside of the opening 11. The notches 13 are located at both ends 21 and 22 of the ring body 2 (FIG. 2), and are bent outside the opening 11. It stands out. The flange body 6 provided in contact with the end surface of the socket member 4 has a circular shape along the outer edge of the opening 11, and the upper end portion thereof serves as a detent protrusion 61 that projects outward in the radial direction. It fits in a recess 15 of the same shape on the edge.

【００１２】 上記接続構造において、配管３が接続されていない状態では（図３）、保持溝 １２内に収納されたリング体２は、その内周部が配管接続用開口１１の内周壁よ り突出している。配管先端３１のソケット部材４を上記開口１１内へ押し込むと （図４）、ソケット部材４の案内面４１がリング体２の内周に当接してこれを押 し拡げる。In the above connection structure, when the pipe 3 is not connected (FIG. 3), the inner peripheral portion of the ring body 2 housed in the holding groove 12 is larger than the inner peripheral wall of the pipe connecting opening 11. It is protruding. When the socket member 4 of the pipe tip 31 is pushed into the opening 11 (FIG. 4), the guide surface 41 of the socket member 4 abuts against the inner circumference of the ring body 2 and pushes and expands it.

【００１３】 フランジ体６が開口１１外端縁に当接し、その凸部６１が凹所１５に嵌合する までソケット部材４を押し込むと、図１に示す如く、リング体２は原形に縮径変 形してその内方に至った係止溝４２内へ内周部が嵌まり込む。これにより、ソケ ット部材４は位置決めされ、配管２の抜けが確実に防止される。この場合、リン グ体２内周部および係止溝４２の各断面をいずれも内方へ幅が小さくなるテーパ 状に成形しておけば、管軸方向のガタを生じることはない。また、上記凸部６１ と凹所１５により配管３の回り止めがなされる。When the flange member 6 is in contact with the outer edge of the opening 11 and the socket member 4 is pushed in until the convex portion 61 fits into the recess 15, the ring member 2 is reduced to its original diameter as shown in FIG. The inner peripheral portion is fitted into the locking groove 42 which is deformed and reaches the inside thereof. As a result, the socket member 4 is positioned and the pipe 2 is securely prevented from coming off. In this case, if each cross section of the inner peripheral portion of the ring body 2 and the engaging groove 42 is formed in a taper shape in which the width becomes smaller inward, there is no backlash in the pipe axis direction. Further, the convex portion 61 and the concave portion 15 prevent the pipe 3 from rotating.

【００１４】 接続を解消する場合には、開口１１外へ突出するリング体２の両端部２１，２ ２を互いに離間する方向（図２の左右方向）へ引くと、リング体２は拡径変形せ しめられて係止溝４２より脱し、ソケット部材４の抜き出しが可能となる。In order to cancel the connection, if both ends 21 and 22 of the ring body 2 projecting outside the opening 11 are pulled in a direction in which they are separated from each other (left and right direction in FIG. 2), the ring body 2 is expanded and deformed. By being pressed, the socket member 4 is released from the locking groove 42, and the socket member 4 can be pulled out.

【００１５】 上記接続構造においては、リング体２およびフランジ体６を打ち抜きで、また ソケット部材４を鍛造ないし切削で簡易に製造することができ、部品点数も少な くて済む。In the above connection structure, the ring body 2 and the flange body 6 can be easily punched, and the socket member 4 can be easily manufactured by forging or cutting, and the number of parts is small.

【００１６】 ソケット部材４を図５に示す如くＬ字形の筒型となせば、油流路１４と直交す る方向より配管３を接続することができる。If the socket member 4 is formed into an L-shaped tubular shape as shown in FIG. 5, the pipe 3 can be connected in a direction orthogonal to the oil flow path 14.

【００１７】[0017]

【考案の効果】[Effect of the device]

以上の如く、本考案の配管接続構造によれば、簡易かつ安価な構造で配管をワ ンタッチで接続でき、車両のオイル配管等に好適に使用することができる。 As described above, according to the pipe connection structure of the present invention, the pipes can be connected by one-touch with a simple and inexpensive structure, and can be suitably used for oil pipes of vehicles.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の一実施例を示す配管接続構造の全体断
面図で、図２のＩ−Ｉ線断面図である。1 is an overall cross-sectional view of a pipe connection structure showing an embodiment of the present invention and is a cross-sectional view taken along the line I-I of FIG.

【図２】配管接続構造の部分断面正面図である。FIG. 2 is a partial cross-sectional front view of a pipe connection structure.

【図３】配管接続前の全体断面図である。FIG. 3 is an overall cross-sectional view before pipe connection.

【図４】配管接続途中の全体断面図である。FIG. 4 is an overall cross-sectional view in the middle of pipe connection.

【図５】本考案の他の実施例を示す配管接続構造の全体
断面図である。FIG. 5 is an overall sectional view of a pipe connection structure showing another embodiment of the present invention.

【図６】従来構造を示す全体断面図である。FIG. 6 is an overall cross-sectional view showing a conventional structure.

【符号の説明】[Explanation of symbols]

１ 油圧機器 １１ 配管接続用開口 １２ 保持溝 １３ 切欠き部 ２ リング体 ２１，２２ 両端部 ３ 配管 ３１ 先端 ４ ソケット部材 ４１ 案内面 ４２ 係止溝 DESCRIPTION OF SYMBOLS 1 Hydraulic equipment 11 Piping connection opening 12 Holding groove 13 Notch 2 Ring bodies 21, 22 Both ends 3 Piping 31 Tip 4 Socket member 41 Guide surface 42 Locking groove

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 配管接続用開口の内周壁全周に保持溝を
形成して該保持溝内に、内周部を壁面より突出せしめて
バネ材よりなる欠円形のリング体を設けるとともに、上
記保持溝の一部に切欠き部を形成して上記リング体の両
端部を開口外へ露出せしめ、一方、配管の先端外周には
上記配管接続用開口の内径にほぼ等しい外径のソケット
部材を設けて、該ソケット部材の外周に、先端方向へ縮
径するテーパ状案内面を形成し、かつ、案内面に続く上
記ソケット部材の基端外周に上記リング体とほぼ同幅で
その内周部を受け入れる係止溝を形成したことを特徴と
する配管接続構造。1. A holding groove is formed on the entire circumference of an inner peripheral wall of a pipe connection opening, and a ring-shaped circular body made of a spring material is provided in the holding groove so that the inner peripheral portion projects from a wall surface. A notch is formed in a part of the holding groove to expose both ends of the ring body to the outside of the opening.On the other hand, on the outer periphery of the tip of the pipe, a socket member having an outer diameter substantially equal to the inner diameter of the pipe connection opening is formed. The socket member is provided with a tapered guide surface on the outer periphery of which the diameter is reduced in the front end direction, and the base end outer periphery of the socket member following the guide surface is of substantially the same width as the ring body and the inner peripheral portion thereof. A pipe connection structure characterized in that a locking groove for receiving is formed.