JPH03129197A - Blind plug and pipe coupling - Google Patents
Blind plug and pipe couplingInfo
- Publication number
- JPH03129197A JPH03129197A JP1268797A JP26879789A JPH03129197A JP H03129197 A JPH03129197 A JP H03129197A JP 1268797 A JP1268797 A JP 1268797A JP 26879789 A JP26879789 A JP 26879789A JP H03129197 A JPH03129197 A JP H03129197A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- middle cylinder
- sliding rod
- rear part
- groove
- 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
- 230000008878 coupling Effects 0.000 title abstract 4
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000037431 insertion Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 abstract description 11
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 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
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Pipe Accessories (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
尤所五且ｎ
〔産業上の利用分野〕
本発明は絞り管や先細のＹ型管（二股管）等、特殊形状
をした異形絞り管の閉塞用盲栓および接続用管継手に関
し、接続と分離を容易にした構造に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a blind plug for closing a specially shaped throttle tube such as a throttle tube or a tapered Y-shaped tube (bifurcated tube), and a connection thereof. Regarding pipe fittings, it relates to a structure that facilitates connection and separation.
絞り管用の盲栓および管継手として、絞り管の絞り部内
面にボールロックする形式の管継手は知られている。こ
の管継手は絞り管の外面をロックする構造のものに比較
して、接続強度が大きい点で優れている。2. Description of the Related Art As blind plugs and pipe joints for throttle pipes, pipe joints that are ball-locked to the inner surface of the throttle part of the throttle pipe are known. This pipe joint is superior to those with a locking structure on the outer surface of the throttle pipe in that it has greater connection strength.
しかしながら、内面ロック方式の上記盲栓および管継手
は接続強度が大きいという点では満足すべきものの、ボ
ールを嵌合するテーパー孔を外周側が内周側より小径の
いわゆる逆テーパー孔としなければならないので、この
場合には、■のテーパー孔に対して１の捨て孔を穿孔し
なければならないという技術的な制約を受けるため、ロ
ックボール数は半減し、思うようにロックボールの数を
増やすことができない。However, although the above-mentioned blind plugs and pipe fittings of the internal locking type are satisfactory in terms of high connection strength, the tapered hole into which the ball is fitted must be a so-called reverse tapered hole where the outer circumferential side is smaller in diameter than the inner circumferential side. In this case, the number of lock balls is halved and it is not possible to increase the number of lock balls as desired because there is a technical restriction that 1 sacrificial hole must be drilled for each taper hole (■). Can not.
しかも、傾斜部内面が截頭円錐状でない異形の絞り管、
例えばＹ型管（二股管）との接続ができない。また、開
口端部の内径が例えば１０ミリメートル未満といった小
径の絞り管やＹ型管の接続に適応させるためには、ロッ
クボールの採用は極めて困難であるという問題点があっ
た。In addition, an irregularly shaped throttle tube whose inner surface of the inclined part is not truncated conical,
For example, it cannot be connected to a Y-shaped pipe (bifurcated pipe). Further, there is a problem in that it is extremely difficult to employ lock balls in order to adapt the connection to small-diameter throttle tubes or Y-shaped tubes with an inner diameter of, for example, less than 10 mm at the open end.
本発明は前記問題点を解決するためのもので、その目的
は、特に、傾斜部内面が截頭円錐状でない異形の絞り管
やＹ型管ならびに開口端部の内径が比較的小径の絞り管
やＹ型管を強固に接続するか、または、封緘することが
でき、しかも、接続と分離が容易な盲栓および管継手を
提供することにある。The present invention is intended to solve the above-mentioned problems, and its purpose is, in particular, to provide an irregularly shaped throttle tube or a Y-shaped tube in which the inner surface of the inclined portion is not truncated and a Y-shaped tube, and a throttle tube whose inner diameter at the open end is relatively small. To provide a blind plug and a pipe joint that can firmly connect or seal Y-shaped pipes and Y-shaped pipes, and are easy to connect and disconnect.
溌堅Ｆ目例尿
〔課題を解決するための手段〕
上記目的を達成するために、本発明の盲栓は、摺動棒と
、この摺動棒の外周に摺動自在に嵌合した大径後部およ
び小径前部とからなる中筒と、この中筒の小径前部の外
周に密封手段を介在させて挿入される接続管の挿入空間
を有し、中筒の大径後部に螺合された外筒と、前記中筒
の大径後部と前記外筒の両者に跨がせて細心方向に摺動
自在に嵌合したスリーブとからなり、前記摺動棒の外周
には、前記中筒の大径後部に穿設したテーパー孔に嵌合
されたロックボールを係止するための溝と、この溝に連
設され前記コックボールの前記接続管方向へ移動を許容
する所要長の浅溝を円周方向に形成し、また、前記中筒
の小径前部には、求遠心方向または少なくともいずれか
一方の方向に振動可能な押圧片を軸心線に対して点対称
状態に装着し、接続管のいわゆる絞り部内面に対して前
記抑圧片の先端遠心面を圧接した構造によって課題を解
決したものである。[Means for solving the problem] In order to achieve the above object, the blind stopper of the present invention includes a sliding rod and a large size slidably fitted on the outer periphery of the sliding rod. It has a middle cylinder consisting of a rear diameter part and a small diameter front part, and an insertion space for a connecting pipe inserted through a sealing means on the outer periphery of the small diameter front part of the middle cylinder, and is screwed into the large diameter rear part of the middle cylinder. an outer cylinder, and a sleeve fitted over both the large-diameter rear part of the middle cylinder and the outer cylinder so as to be slidable in the fine direction; A groove for locking a lock ball fitted into a tapered hole drilled in the large-diameter rear part of the cylinder, and a shallow groove of a required length that is connected to this groove and allows movement of the cock ball in the direction of the connecting pipe. A groove is formed in the circumferential direction, and a pressing piece that can vibrate in a centrifugal direction or at least one of the directions is attached to the small diameter front part of the middle cylinder in a point symmetrical state with respect to the axis. This problem is solved by a structure in which the distal end surface of the suppressing piece is pressed against the inner surface of the so-called constricted part of the connecting pipe.
また、本発明の管継手は、細心方向に流路を形成した内
筒と、この内筒の外周に細心方向に摺動自在に嵌合した
大径後部および小径前部とからなる中筒と、この中筒の
小径前部の外周に密封手段を介在させて挿入される接続
管の挿入空間を有し、中筒の大径後部に螺合された外筒
と、前記中筒の大径後部と前記外筒の両者に跨がせて細
心方向に摺動自在に嵌合したスリーブとからなり、前記
内筒の外周には、前記中筒の大径後部に穿設したテーパ
ー孔に嵌合されたロックボールを係止するための溝と、
同じく、前記中筒の大径後部に穿設した孔に嵌合したガ
イドボールの接続管方向へ移動する距離を規制する幅広
の円周溝とを形成し、また、前記中筒の小径前部には、
求遠心方向または少なくともいずれか一方の方向に振動
可能な押圧片を軸心線に対して点対称状態に装着し、接
続管のいわゆる絞り部内面に対して前記抑圧片の先端遠
心面を圧接した構造によって課題を解決したものである
。The pipe joint of the present invention also includes an inner cylinder having a flow path formed in the narrow direction, and a large diameter rear part and a small diameter front part fitted on the outer periphery of the inner cylinder so as to be slidable in the narrow direction. , has an insertion space for a connecting pipe inserted through a sealing means on the outer periphery of the small-diameter front part of the middle cylinder, and has an outer cylinder screwed to the large-diameter rear part of the middle cylinder, and a large-diameter part of the middle cylinder. It consists of a sleeve fitted over both the rear part and the outer cylinder so as to be slidable in the fine direction, and the sleeve is fitted on the outer periphery of the inner cylinder into a tapered hole bored in the large diameter rear part of the middle cylinder. a groove for locking the combined lock ball;
Similarly, a wide circumferential groove is formed in the large diameter rear part of the middle cylinder to restrict the distance that the guide ball that fits into the hole drilled in the large diameter rear part of the middle cylinder moves in the direction of the connecting pipe. for,
Pressing pieces that can vibrate in the centrifugal direction or at least one of them are mounted point-symmetrically with respect to the axis, and the distal end centrifugal surface of the suppressing piece is pressed against the inner surface of the so-called throttle part of the connecting pipe. The problem was solved by the structure.
〔作用〕
盲栓において、まず、スリーブを摺動させてロックボー
ルに対する求心方向への抑圧を解除し、中筒を接続管の
方向へ移動させると、この解放されたロックボールは内
筒の係止溝から離脱し、間溝に連設した浅溝に係止する
ようになる。このとき、摺動棒は中筒の小径前部の内周
面を摺動自在になるので、摺動棒を前記接続管と反対方
向へ移動させると、押圧片はそれぞれ自由状態となり、
その先端部は求心方向に変位可能になる。[Operation] In the blind stopper, first, the sleeve is slid to release the lock ball from being compressed in the centripetal direction, and the middle cylinder is moved in the direction of the connecting pipe. This released lock ball engages the inner cylinder. It separates from the retaining groove and comes to be retained in a shallow groove connected to the intermediate groove. At this time, the sliding rod can freely slide on the inner circumferential surface of the small diameter front part of the middle cylinder, so when the sliding rod is moved in the opposite direction to the connecting pipe, the pressing pieces become free,
Its tip becomes movable in the centripetal direction.
次に、前記中筒の小径前部と外筒との間に形成された挿
入空間に接続管の開口端部を挿入すると、まず、同開口
端部は前記抑圧片の突起の外方向を通り抜けて該挿入空
間内に進入する。Next, when the open end of the connecting pipe is inserted into the insertion space formed between the small-diameter front part of the middle cylinder and the outer cylinder, the open end first passes through the protrusion of the suppressing piece in the outward direction. and enter the insertion space.
更に、前記接続管の挿入を続けると、ホルダーが接続管
の端面で押圧されて後退し、やがて、接続管の傾斜内周
部が前記押圧片の突起に対向するようになったときに、
摺動棒を原位置に押し戻すと、中筒が支持するロックボ
ールは摺動棒の浅溝上を移動して係止溝に係合し、前記
スリーブが元の位置に戻ってロックボールを押圧する。Furthermore, as the connection tube continues to be inserted, the holder is pushed back by the end surface of the connection tube, and eventually, when the inclined inner circumference of the connection tube comes to oppose the protrusion of the pressing piece,
When the sliding rod is pushed back to its original position, the lock ball supported by the middle cylinder moves on the shallow groove of the sliding rod and engages with the locking groove, and the sleeve returns to its original position and presses the lock ball. .
摺動棒が原位置に押し戻されると、挿入した接続管の傾
斜部内周面部に対して押圧片の突起が圧接するようにな
るので、この盲栓は接続管に強固に接続される。When the sliding rod is pushed back to its original position, the protrusion of the pressing piece comes into pressure contact with the inner peripheral surface of the inclined portion of the inserted connecting tube, so that the blind plug is firmly connected to the connecting tube.
また、管継手では、接続管の挿入を終えたとき内筒を押
し戻すと、ガイドボールが溝の端部に達したときにロッ
クボールが内筒の係止溝に係合し、スリーブが元の位置
に戻ってロックボールを押圧し、押圧片の突起は同様に
して接続管の傾斜内周面部に強固に圧接して、接続管に
接続される。In addition, with pipe fittings, when the inner cylinder is pushed back after inserting the connecting pipe, the lock ball engages with the locking groove of the inner cylinder when the guide ball reaches the end of the groove, and the sleeve returns to its original position. Returning to the position, the lock ball is pressed, and the protrusion of the pressing piece is similarly firmly pressed against the inclined inner circumferential surface of the connecting pipe, thereby being connected to the connecting pipe.
以下、図面に基づいて本発明の好適な実施例を説明する
。Hereinafter, preferred embodiments of the present invention will be described based on the drawings.
第１図は、本発明の盲栓を４半部縦断側面図を以て示し
たものである。FIG. 1 shows a quarter-half vertical side view of the blind stopper of the present invention.
１０は末端部に把手１■を螺合した摺動棒、２０は前部
が小径で後部が大径であって、摺動棒１０の外周にＯリ
ング１２を介在させて軸心方向に摺動自在に嵌合した中
筒、３５は中筒２０の外周にＯリング３７を介在させ、
中ＷＪ２Ｑの大径後部２１に形成した雄ねじ２２に対し
て雌ねじ３６をもって螺合した外筒で、同外筒３５と中
筒２ｏの小径前部２５の外周面との間には後述するホル
ダー４０を収容する環状の挿入空間３８が形成されてい
る。10 is a sliding rod with a handle 1 screwed onto its end; 20 is a rod with a small diameter at the front and a large diameter at the rear; an O-ring 12 is interposed on the outer periphery of the sliding rod 10, and the rod 20 is slidable in the axial direction. The movably fitted middle cylinder 35 has an O-ring 37 interposed on the outer periphery of the middle cylinder 20,
The outer cylinder is screwed with a female thread 36 to a male thread 22 formed on the large diameter rear part 21 of the middle WJ2Q, and a holder 40 (described later) is provided between the outer cylinder 35 and the outer peripheral surface of the small diameter front part 25 of the middle cylinder 2o. An annular insertion space 38 is formed to accommodate the.
５０は中筒２０の大径後部２１と外筒３５の両者に跨が
せて軸心方向に摺動自在に嵌合したスリーブで、その内
周面には後述するロックボール１５の遠心方向への移動
を規制するとともにロックボール１５を求心方向に押さ
えるボール押さえ部５１と、ロックボール１５を解放し
て同ボール１５の抑圧を解除するボール解放部５２とを
有している。スリーブ５０は圧縮コイルスプリング５５
により常時、ボール解放部５２の方向（第１図左方向）
へ押圧付勢されている。Reference numeral 50 denotes a sleeve fitted over both the large-diameter rear portion 21 of the middle cylinder 20 and the outer cylinder 35 so as to be slidable in the axial direction. It has a ball pressing part 51 that restricts the movement of the lock ball 15 and presses the lock ball 15 in the centripetal direction, and a ball releasing part 52 that releases the lock ball 15 and releases the suppression of the ball 15. The sleeve 50 is a compression coil spring 55
Therefore, the direction of the ball release part 52 is always maintained (toward the left in FIG. 1).
It is pressed and biased.
２３は、中筒２０の大径後部２１の後端部間−円周上に
複数個穿設した外周側が内周側より大径のテーパー孔で
、開孔２３にはロックボール１５が半径方向に移動可能
にそれぞれ嵌合され、前記ボール押さえ部５１により遠
心方向への移動が規制されている。Reference numeral 23 denotes a plurality of tapered holes bored on the circumference between the rear ends of the large-diameter rear portion 21 of the middle cylinder 20, and the outer circumferential side has a larger diameter than the inner circumferential side. The balls are movably fitted into each other, and movement in the centrifugal direction is restricted by the ball pressing portion 51.
１３は摺動棒１０の外周面に円周方向に形成したロック
ボール係止溝であり、ロックボール１５と係合離脱可能
である。また、１４は摺動棒ｌＯの外周上で、前記係止
溝１３に連設した浅溝であり、浅溝■４の深さは係止溝
１３より若干浅く形成され、ロックボール１５がボール
解放部５２に解放されたときには、同ボール１５はテー
パー孔２３内にあって係止溝１３から浅溝１４への移動
が自由に行われるようになっている。更に、この浅溝１
４の溝長（軸方向の長さ）は、ロックボール１５が接続
管６０方向（第１図右方向）へ移動する距離を規制する
寸法に設定されている。Numeral 13 is a lock ball locking groove formed in the circumferential direction on the outer peripheral surface of the sliding rod 10, and is capable of engaging and disengaging from the lock ball 15. Further, 14 is a shallow groove connected to the locking groove 13 on the outer periphery of the sliding rod 10, and the depth of the shallow groove 4 is slightly shallower than that of the locking groove 13, so that the lock ball 15 is connected to the locking groove 13. When released by the release portion 52, the ball 15 is located within the tapered hole 23 and can freely move from the locking groove 13 to the shallow groove 14. Furthermore, this shallow groove 1
The groove length (length in the axial direction) of No. 4 is set to a dimension that regulates the distance that the lock ball 15 moves in the direction of the connecting pipe 60 (rightward in FIG. 1).
前記中筒２０は、第３図に斜視図を以て示すように、大
径後部２１と小径前部２５の２部によって構成されてい
る。The middle cylinder 20 is composed of two parts, a large diameter rear part 21 and a small diameter front part 25, as shown in a perspective view in FIG.
小径前部２５は、割りピン状に形成されており、小径部
片２６ａ、２６ｂを有しているが、同小径部片２６ａ、
２６ｂ間の空隙を埋めるように、大径後部２１の正面部
に形成した直線溝２４に２個の押圧片２７ａ、２７ｂが
上下対称に振動自在に装着されている。The small diameter front portion 25 is formed in the shape of a split pin and has small diameter pieces 26a, 26b.
Two pressing pieces 27a and 27b are vertically symmetrically attached to the straight groove 24 formed in the front part of the large-diameter rear part 21 so as to be able to vibrate freely so as to fill the gap between the two pressing pieces 26b.
押圧片２７ａ、２７ｂの軸心方向中央部分３１の肉厚は
前後部分の肉厚より薄く、また、長さは小径部片２６ａ
、２６ｂの細心方向の長さよりも長く、小径部片２６ａ
、２６ｂの外部に僅かながら先端部が突出するように形
成するとともに、先端部は遠心方向へ突起２９を形成し
て、Ｙ堅管６０の小径部６２を支持するための支持面２
８を形成する。The wall thickness of the central portion 31 in the axial direction of the pressing pieces 27a, 27b is thinner than the wall thickness of the front and rear portions, and the length is the same as that of the small diameter portion 26a.
, 26b in the narrow direction, and the small diameter portion 26a
, 26b so that the distal end protrudes slightly from the outside, and the distal end has a protrusion 29 extending in the centrifugal direction to form a support surface 2 for supporting the small diameter portion 62 of the Y rigid tube 60.
form 8.
３２は２個の半円筒体を突き合わせて円筒体としたガイ
ド筒で、ガイド筒３２の第１図左端部にはスプリング係
止用のフランジ３２ａを形成し、このガイド筒３２を前
記小径部片２６ａ、２６ｂの外周面に、押圧片２７ａ、
２７１）の中央肉薄部分３１に位置させて軸方向に摺動
自在に嵌合させている。ガイド筒３２の前記フランジ３
２ａには圧縮コイルスプリング３３を架け、ガイド筒３
２を常時、前方（Ｙ型管挿入側）へ押圧付勢している。Reference numeral 32 denotes a guide tube formed into a cylindrical body by abutting two semi-cylindrical bodies, and a flange 32a for spring locking is formed at the left end of the guide tube 32 in FIG. On the outer peripheral surfaces of 26a and 26b, pressing pieces 27a,
271), and is fitted so as to be slidable in the axial direction. The flange 3 of the guide tube 32
A compression coil spring 33 is mounted on 2a, and the guide tube 3
2 is always pressed forward (toward the Y-shaped tube insertion side).
４０は、その外周にＯリング４１を介在させ、外筒３５
の内周面と中筒２０の小径前部２５の外周面との間に形
成した前記挿入空間３８に、軸方向に摺動自在に嵌挿し
たＹ堅管６０の先端部と外周面部とを支持するための円
筒状のホルダーであり、同ホルダー４０の内周面中央部
分には前記ガイド筒３２が位置しており、ホルダー４０
の内周面とガイド筒３２の外周面との間にＹ堅管６０の
開口端小径部６２が挿入される間隙４３を形成する。40 has an O-ring 41 interposed on its outer periphery, and the outer cylinder 35
The distal end and outer circumferential surface of a Y rigid tube 60 that is slidably inserted in the axial direction are inserted into the insertion space 38 formed between the inner circumferential surface of the inner circumferential surface and the outer circumferential surface of the small diameter front section 25 of the middle tube 20. It is a cylindrical holder for supporting the holder 40, and the guide tube 32 is located at the center of the inner peripheral surface of the holder 40.
A gap 43 is formed between the inner circumferential surface of the guide tube 32 and the outer circumferential surface of the guide tube 32, into which the open end small diameter portion 62 of the Y hard tube 60 is inserted.
４２は挿入したＹ堅管６０の先端面部をシールするため
の断面方形のシールリング、４５は間管６０の外周面部
をシールするための０リング、４８はホルダー４０が外
筒３５から脱落するのを防止するための止め輪である。42 is a seal ring with a rectangular cross section for sealing the distal end of the inserted Y hard tube 60, 45 is an O ring for sealing the outer peripheral surface of the intermediate tube 60, and 48 is a seal ring for preventing the holder 40 from falling off from the outer tube 35. This is a retaining ring to prevent this.
次に、この実施例の作用を説明する。Next, the operation of this embodiment will be explained.
スリーブ５０を圧縮コイルスプリング５５の弾発力に抗
して摺動させ、ボール押さえ部５１によるロックボール
１５の押圧を解除する。この状態では中筒２０を第１図
において右方向へ自由に移動させることができる。中筒
２０のこの移動により、ロックボール１５は摺動棒１０
の係止溝１３から離脱し、連設した浅溝１４上を間溝右
端部まで移動させることができるので、ロックボール１
５は浅溝１４とスリーブ５０のボール解放部５２との間
に係止される。このとき、摺動棒ｌＯは中筒２０の小径
前部２５の内周面に沿って相対的に第１図において左方
向へ移動し、摺動棒ｌＯの先端部は中筒２０の小径前部
２５に点対称状態に嵌合した抑圧片２７ａ、２７ｂの肉
厚の大きい小径前部を解放するので、押圧片２７ａ、２
７ｂはそれぞれその先端部が求心方向へ移動可能になる
。The sleeve 50 is slid against the elastic force of the compression coil spring 55, and the pressure on the lock ball 15 by the ball pressing portion 51 is released. In this state, the middle cylinder 20 can be freely moved to the right in FIG. Due to this movement of the middle cylinder 20, the lock ball 15 moves against the sliding rod 10.
The lock ball 1 can be released from the locking groove 13 and moved over the continuous shallow groove 14 to the right end of the groove.
5 is locked between the shallow groove 14 and the ball release portion 52 of the sleeve 50. At this time, the sliding rod lO moves relatively to the left in FIG. Since the thick and small diameter front portions of the pressing pieces 27a and 27b fitted in the portion 25 in a point symmetrical manner are released, the pressing pieces 27a and 2
Each of the tips 7b becomes movable in the centripetal direction.
第２図には、このときの状態が４半部縦断側面図を以て
示されており、この状態はＹ型管を挿入する前の状態で
ある。FIG. 2 shows this state in a longitudinal cross-sectional side view of a quarter, and this state is before the Y-shaped tube is inserted.
次に、ホルダー４０とガイド筒３２の間隙４３に接続す
べきＹ堅管６０の開口端小径部６２を挿入すると、まず
、同小径部６２は求心方向に移動可能な押圧片２７ａ、
２７ｂの突起２９を乗り越えて間隙４３内に進入し、同
小径部６２の内周面が押圧片２７ａ、２７ｂの支持面２
８によって支持されるようになると、突起２９はＹ堅管
６０の傾斜部６１に対向するようになる。また、他方に
おいて、小径部６２の端面はシールリング４２に当接状
態になる。このとき、Ｙ堅管６０の小径部６２の外周は
Ｏリング４５によって側面シールされる状態になる。Next, when the open end small diameter part 62 of the Y hard tube 60 to be connected to the gap 43 between the holder 40 and the guide tube 32 is inserted, the small diameter part 62 first moves into the pressing piece 27a, which is movable in the centripetal direction.
27b, and enters into the gap 43, and the inner peripheral surface of the small diameter portion 62 becomes the support surface 2 of the pressing pieces 27a, 27b.
8 , the protrusion 29 comes to oppose the inclined portion 61 of the Y hard tube 60 . On the other hand, the end surface of the small diameter portion 62 comes into contact with the seal ring 42 . At this time, the outer periphery of the small-diameter portion 62 of the Y hard tube 60 is side-sealed by the O-ring 45.
この状態では、押圧片２７ａ、２７ｂの自由端部突起２
９がＹ堅管６０の小径部６２の内周面に沿って移動し、
他方では、摺動棒１０の先端部は中筒２０の小径前部２
５の押圧片２７ａ、２７ｂの装着溝３０内に係止されて
、摺動棒ｌＯと中筒２０とは結合状態となり、Ｙ堅管６
０を引き続き挿入しても中筒２０は移動することがない
。In this state, the free end projections 2 of the pressing pieces 27a, 27b
9 moves along the inner peripheral surface of the small diameter portion 62 of the Y hard tube 60,
On the other hand, the tip of the sliding rod 10 is connected to the small diameter front portion 2 of the middle cylinder 20.
5 is locked in the mounting groove 30 of the pressing pieces 27a and 27b, the sliding rod lO and the middle tube 20 are in a connected state, and the Y rigid tube 6
Even if 0 is continuously inserted, the middle cylinder 20 does not move.
更に、Ｙ堅管６０の挿入を続け、Ｙ堅管６０の傾斜部６
Ｉが抑圧片２７ａ、２７ｂの突起２９に対向するように
なると、同突起２９はＹ堅管６０の小径部６２の内周面
から離脱する。また、ホルダー４０がＹ堅管６０に押圧
されて後退するのにともない、圧縮コイルスプリング３
３の弾発力に抗してガイド筒３２も後退する。この状態
で、Ｙ復管６０の小径部６２の先端面と側面部はシール
リング４２とＯリング４５によって個別に完全シールさ
れる。Further, the insertion of the Y hard tube 60 is continued, and the inclined part 6 of the Y hard tube 60 is
When I comes to oppose the projections 29 of the suppressing pieces 27a, 27b, the projections 29 separate from the inner peripheral surface of the small diameter portion 62 of the Y hard tube 60. Also, as the holder 40 is pushed back by the Y hard tube 60, the compression coil spring 3
The guide cylinder 32 also retreats against the elastic force of 3. In this state, the tip and side surfaces of the small diameter portion 62 of the Y return pipe 60 are completely sealed individually by the seal ring 42 and the O-ring 45.
次に、摺動棒１０を第２図において右方向に押圧すると
、中筒２０は相対的に左方向に摺動するので、ロックボ
ール１５は浅溝１４上を第１図左方向へ移動し、やがて
、中筒２０に形成したテーパー孔２３と摺動棒ＩＯに形
成した係止溝１３とが求遠心方向から合致し、スリーブ
５０のボール解放部５２と浅溝１４との間に係止されて
いたロックボール１５がスリーブ５０を押圧する圧縮コ
イルスプリング５５の作用で係止溝１３に係合し、同時
に、スリーブ５０はボール押さえ部５１により前記ロッ
クボール１５を押圧する。また、一方では、押圧片２７
ａ、２７ｂの間に摺動棒１０の先端部が進入して、固片
を原状の平行状態に戻し、突起２９．２９を遠心方向に
広げる。Next, when the sliding rod 10 is pressed to the right in FIG. 2, the middle cylinder 20 relatively slides to the left, so the lock ball 15 moves to the left in FIG. 1 on the shallow groove 14. Eventually, the tapered hole 23 formed in the middle cylinder 20 and the locking groove 13 formed in the sliding rod IO match from the centrifugal direction, and the ball is locked between the ball release part 52 of the sleeve 50 and the shallow groove 14. The lock ball 15 that has been held in place engages with the locking groove 13 by the action of the compression coil spring 55 that presses the sleeve 50, and at the same time, the sleeve 50 presses the lock ball 15 with the ball holding portion 51. Moreover, on the other hand, the pressing piece 27
The tip of the sliding rod 10 enters between a and 27b to return the solid pieces to their original parallel state and spread the protrusions 29 and 29 in the centrifugal direction.
こうして、摺動棒１０と中筒２０は結合され、挿入した
Ｙ復管６０は小径部６２の端面をシールリング４２で、
外周面をＯリング４５によりそれぞれ密封されたとき、
Ｙ復管６０の傾斜部６１の内周面に前記広げられた押圧
片２７ａ、２７ｂの突起２９が圧接することにより、Ｙ
型管と盲栓とは完全に接続される。In this way, the sliding rod 10 and the middle tube 20 are connected, and the inserted Y return tube 60 has an end face of the small diameter portion 62 with the seal ring 42.
When the outer peripheral surfaces are each sealed with O-rings 45,
The protrusions 29 of the spread pressing pieces 27a, 27b come into pressure contact with the inner circumferential surface of the inclined portion 61 of the Y return pipe 60, so that the Y
The mold pipe and blind stopper are completely connected.
なお、中筒２０の小径前部２５は小径部片２６ａ、２６
ｂと押圧片２７ａ、２７ｂに分割されて構成されている
ので、Ｙ復管６０内の圧力と外筒３５と中筒２０の小径
前部２５との間に形成された挿入空間３８との間に圧力
差が生じることはなくなる。Note that the small-diameter front portion 25 of the middle cylinder 20 has small-diameter pieces 26a, 26.
b, and the pressure pieces 27a and 27b, the pressure inside the Y return pipe 60 and the insertion space 38 formed between the outer cylinder 35 and the small diameter front part 25 of the middle cylinder 20 are reduced. There will no longer be a pressure difference between the two.
次に、上記のようにして接続したＹ型管を外す場合には
、まず、スリーブ５０を圧縮コイルスプリング５５の弾
発力に抗して摺動させ、ボール押さえ部５１によるロッ
クボール１５の押圧を解除し、摺動棒ｌＯを第１図にお
いて左方向へ引けば、ロックボール１５は摺動棒ｌＯの
係止溝１３から離脱し、浅溝１４上を右端部まで移動し
たのち、浅溝１４とスリーブ５０のボール解放部５２と
の間に係止される。このとき、摺動棒ｌＯの先端部は中
筒２０の小径前部２５の押圧片２７ａ、２７ｂの溝３０
に係止するので押圧片２７ａ、２７ｂはその先端部が求
心方向に向けて動き得るようになり、押圧片２７ ａ、
２７ ｂの突起２９によるＹ復管６０の傾斜部６１の
内周面に対する圧接力が解除される。従って、この状態
でＹ復管６０を分離する方向に引けば、Ｙ復管６０をス
ムーズに弓き抜くことができる。Next, when removing the Y-shaped pipe connected as described above, the sleeve 50 is first slid against the elastic force of the compression coil spring 55, and the lock ball 15 is pressed by the ball holding part 51. When the lock ball 15 is released from the locking groove 13 of the sliding rod 10, moves to the right end on the shallow groove 14, and then pulls the sliding rod lO to the left in FIG. 14 and the ball release portion 52 of the sleeve 50. At this time, the tip of the sliding rod IO is connected to the groove 3 of the pressing pieces 27a and 27b of the small diameter front part 25 of the middle cylinder 20.
Since the pressing pieces 27a and 27b are engaged with each other, the tips of the pressing pieces 27a and 27b can move in the centripetal direction.
The pressing force exerted by the projection 29 of 27b on the inner circumferential surface of the inclined portion 61 of the Y return pipe 60 is released. Therefore, if the Y return pipe 60 is pulled in the direction of separation in this state, the Y return pipe 60 can be smoothly cut out.
以上の説明において、接続管としてはＹ型管をもって説
明したが、第５図に４半部縦断側面図を以て示す絞り管
６０′との接続が可能であることはいうまでもないこと
である。In the above description, a Y-shaped pipe was used as the connecting pipe, but it goes without saying that it is also possible to connect with a throttle pipe 60' shown in a vertical cross-sectional side view of a quarter half in FIG.
続いて、本発明の管継手の実施例について説明する。第
６図は本発明の管継手を４半部縦断側面図を以て示した
もので、第１図と同じ名称の部材には同図と同一の符号
を付して説明を省略する。Next, embodiments of the pipe joint of the present invention will be described. FIG. 6 shows the pipe joint of the present invention in a longitudinal cross-sectional side view of a quarter part, and members having the same names as those in FIG.
この管継手が第１図に示す盲栓と異なる部材は、前記摺
動棒１０に相当する部材が軸心部に貫通した流路８１を
持つ筒体すなわち内筒８０であるということであり、ま
た、内筒８０の中央部外周には、同筒の円周方向に配置
した複数個のガイドボール８３が係合離脱する幅広の円
周溝８４が形成されているということである。このガイ
ドボール８３を収容する孔８５は、中筒２０大径後部２
１の小径前部２５寄りに外周側が内周側より若干大径に
形成されたテーパー孔である。The difference between this pipe joint and the blind stopper shown in FIG. 1 is that the member corresponding to the sliding rod 10 is a cylinder body, that is, an inner cylinder 80 having a passage 81 penetrating through the shaft center. Further, a wide circumferential groove 84 is formed on the outer periphery of the central portion of the inner cylinder 80, in which a plurality of guide balls 83 arranged in the circumferential direction of the inner cylinder 80 engage and disengage. The hole 85 that accommodates this guide ball 83 is located at the large diameter rear part 2 of the middle cylinder 20.
It is a tapered hole formed near the small-diameter front portion 25 of No. 1, with the outer circumferential side having a slightly larger diameter than the inner circumferential side.
この管継手の作用は前記盲栓の作用とほぼ同様であるが
、異なる作用は次のとおりである。即ち、内筒８０と中
筒２０の相対的摺動距離を、中筒２０に設けたガイドボ
ール８３と内筒８０に形成した円周溝８４の溝幅により
規制し、押圧片２７ａ、２７ｂの求心方向への動きを拘
束したり、解放したりしている点のみである。The function of this pipe joint is almost the same as that of the blind stopper described above, but the different functions are as follows. That is, the relative sliding distance between the inner cylinder 80 and the middle cylinder 20 is regulated by the guide ball 83 provided in the middle cylinder 20 and the groove width of the circumferential groove 84 formed in the inner cylinder 80, It is only a point that restricts or releases movement in the centripetal direction.
なお、この管継手の内筒８０には、第６図において左端
部に、使用時に公知のバルブ内蔵型プラグが螺嵌合され
、前記盲栓と同一の機能を果たすが、このプラグに同じ
く公知のバルブ内蔵型ソケットを接続すると、ソケット
とプラグ双方のバルブが相対的に後退して、流路を開く
。A well-known plug with a built-in valve is screwed into the inner cylinder 80 of this pipe joint at the left end in FIG. 6 when in use, and performs the same function as the blind plug. When a socket with a built-in valve is connected, the valves of both the socket and plug move relatively back to open the flow path.
３浬Ｆお例果
本発明によれば、絞り管やＹ型管のような異形絞り管に
管継手を接続する場合や、これら接続管の開口端を盲栓
で閉塞する場合に、いわゆる絞り部分が正截頭円錐形で
あっても異形の円錐形であっても、その形状に関係なく
強固に接続や封緘を行うことができ、特に、押圧片を用
いたことによってロックボールを用いた場合に比べると
、小径管への適応性が高いという特長がある。According to the present invention, when connecting a pipe joint to an irregularly shaped throttle pipe such as a throttle pipe or a Y-shaped pipe, or when closing the open end of these connecting pipes with a blind plug, the so-called throttle can be used. Regardless of the shape of the part, whether it is a regular truncated cone or an irregular cone, it is possible to firmly connect and seal the part. It has the advantage of being highly adaptable to small-diameter pipes.
０・・・摺動棒 ４・・・浅溝 ０・・・中筒 ５・・・小径前部 ７ａ、ｂ＝押圧片 ０・・・溝 ８・・・挿入空間 ０・・・スリーブ ０・・・内筒 ３・・・係止溝 ５・・・ロックボール ド・・大径後部 ６ａ、ｂ−−−小径部片 ９・・・突起 ５・・・外筒 ０・・・ホルダー 〇・・・Ｙ型管 ３・・・ガイドボール0...Sliding rod 4...shallow groove 0...Middle tube 5...Small diameter front part 7a, b=pressing piece 0...Groove 8...Insertion space 0...Sleeve 0...Inner cylinder 3...Latching groove 5...Rock ball De...Large diameter rear 6a, b---small diameter piece 9...Protrusion 5... Outer cylinder 0...Holder 〇・・・Y-shaped pipe 3...Guide ball
図面は本発明に係る盲栓と管継手の一実施例を示したも
ので、第１図はＹ型管に盲栓を接続した状態を示す４半
部縦断側面図、第２図は接続前の状態を示す同じく縦断
側面図、第３図は中筒の斜視図、第４図はＹ型管を開口
端部側から見た正面図、第５図は接続管の他の例として
示した絞り管の４半部縦断側面図、第６図は管継手の４
半部縦断側面図である。The drawings show an embodiment of the blind plug and pipe joint according to the present invention. Figure 1 is a vertical cross-sectional side view of a quarter half of the blind plug connected to a Y-shaped pipe, and Figure 2 is a side view of the blind plug before connection. Fig. 3 is a perspective view of the middle tube, Fig. 4 is a front view of the Y-shaped pipe as seen from the open end side, and Fig. 5 shows another example of the connecting pipe. A longitudinal cross-sectional side view of the four halves of the throttle pipe, Figure 6 shows the four halves of the pipe joint.
It is a half longitudinal side view.
Claims (1)
大径後部および小径前部とからなる中筒と、この中筒の
小径前部の外周に密封手段を介在させて挿入される接続
管の挿入空間を有し、中筒の大径後部に螺合された外筒
と、前記中筒の大径後部と前記外筒の両者に跨がせて軸
心方向に摺動自在に嵌合したスリーブとからなり、前記
摺動棒の外周には、前記中筒の大径後部に穿設したテー
パー孔に嵌合されたロックボールを係止するための溝と
、この溝に連設され前記ロックボールの前記接続管方向
へ移動を許容する所要長の浅溝を円周方向に形成し、ま
た、前記中筒の小径前部には、求遠心方向または少なく
ともいずれか一方の方向に振動可能な押圧片を軸心線に
対して点対称状態に装着し、接続管のいわゆる絞り部内
面に対して前記押圧片の先端遠心面を圧接させることを
特徴とする盲栓。 ２、軸心方向に流路を形成した内筒と、この内筒の外周
に軸心方向に摺動自在に嵌合した大径後部および小径前
部とからなる中筒と、この中筒の小径前部の外周に密封
手段を介在させて挿入される接続管の挿入空間を有し、
中筒の大径後部に螺合された外筒と、前記中筒の大径後
部と前記外筒の両者に跨がせて軸心方向に摺動自在に嵌
合したスリーブとからなり、前記内筒の外周には、前記
中筒の大径後部に穿設したテーパー孔に嵌合されたロッ
クボールを係止するための溝と、同じく、前記中筒の大
径後部に穿設した孔に嵌合したガイドボールの接続管方
向へ移動する距離を規制する幅広の円周溝とを形成し、
また、前記中筒の小径前部には、求遠心方向または少な
くともいずれか一方の方向に振動可能な押圧片を軸心線
に対して点対称状態に装着し、接続管のいわゆる絞り部
内面に対して前記押圧片の先端遠心面を圧接させること
を特徴とする管継手。[Scope of Claims] 1. A middle cylinder consisting of a sliding rod, a large-diameter rear part and a small-diameter front part that are slidably fitted on the outer periphery of the sliding rod, and an outer periphery of the small-diameter front part of this middle cylinder. has an insertion space for a connecting pipe inserted through a sealing means, and has an outer cylinder screwed to the large-diameter rear part of the middle cylinder, and an outer cylinder that straddles both the large-diameter rear part of the middle cylinder and the outer cylinder. and a sleeve fitted so as to be slidable in the axial direction, and a lock ball fitted into a tapered hole drilled in the large diameter rear part of the middle cylinder is locked on the outer periphery of the sliding rod. a shallow groove of a predetermined length that is connected to the groove and allows the lock ball to move in the direction of the connecting pipe; A pressing piece that can vibrate in the centrifugal direction or at least one of the directions is installed point-symmetrically with respect to the axis, and the distal end of the pressing piece is brought into pressure contact with the inner surface of the so-called throttle part of the connecting pipe. A blind stopper characterized by: 2. A middle cylinder consisting of an inner cylinder with a flow path formed in the axial direction, a large diameter rear part and a small diameter front part fitted on the outer periphery of this inner cylinder so as to be slidable in the axial direction, and this middle cylinder. It has an insertion space for a connecting pipe inserted through a sealing means on the outer periphery of the small diameter front part,
It consists of an outer cylinder screwed onto the large-diameter rear part of the middle cylinder, and a sleeve fitted so as to be slidable in the axial direction so as to straddle both the large-diameter rear part of the middle cylinder and the outer cylinder. The outer periphery of the inner cylinder has a groove for locking a lock ball fitted into a tapered hole drilled in the large diameter rear part of the middle cylinder, and a hole also drilled in the large diameter rear part of the middle cylinder. A wide circumferential groove is formed to restrict the distance that the guide ball fitted into the guide ball moves in the direction of the connecting pipe.
In addition, a pressing piece that can vibrate in the centrifugal direction or at least one of the directions is attached to the small diameter front part of the middle cylinder in a point symmetrical state with respect to the axis, and is attached to the inner surface of the so-called constricted part of the connecting pipe. A pipe joint characterized in that the distal end distal surface of the pressing piece is brought into pressure contact with the pressing piece.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1268797A JPH0663590B2 (en) | 1989-10-16 | 1989-10-16 | Blinds and fittings |
| KR1019900011467A KR930009055B1 (en) | 1989-10-16 | 1990-07-27 | Plug & pipe coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1268797A JPH0663590B2 (en) | 1989-10-16 | 1989-10-16 | Blinds and fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03129197A true JPH03129197A (en) | 1991-06-03 |
| JPH0663590B2 JPH0663590B2 (en) | 1994-08-22 |
Family
ID=17463400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1268797A Expired - Fee Related JPH0663590B2 (en) | 1989-10-16 | 1989-10-16 | Blinds and fittings |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0663590B2 (en) |
| KR (1) | KR930009055B1 (en) |
-
1989
- 1989-10-16 JP JP1268797A patent/JPH0663590B2/en not_active Expired - Fee Related
-
1990
- 1990-07-27 KR KR1019900011467A patent/KR930009055B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR930009055B1 (en) | 1993-09-22 |
| KR910008325A (en) | 1991-05-31 |
| JPH0663590B2 (en) | 1994-08-22 |
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