WO2012026037A1 - 管継手 - Google Patents
管継手 Download PDFInfo
- Publication number
- WO2012026037A1 WO2012026037A1 PCT/JP2010/064625 JP2010064625W WO2012026037A1 WO 2012026037 A1 WO2012026037 A1 WO 2012026037A1 JP 2010064625 W JP2010064625 W JP 2010064625W WO 2012026037 A1 WO2012026037 A1 WO 2012026037A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- tube
- elastic member
- fastening
- pipe joint
- Prior art date
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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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
Definitions
- the present invention relates to a pipe joint for connecting pipes such as a water pipe and a gas pipe, and more particularly, a pipe joint provided with a push ring for pressing a seal ring fitted between the pipes. About.
- Patent Document 1 discloses a pipe in which any pipe is tilted to avoid breakage or breakage in a pipe joint portion, regardless of the direction of pressure around the pipe axis.
- the invention about a joint retaining ring (pipe joint) is described.
- this pipe joint retaining push ring includes a receiving port 111 of one pipe 110 (“pipe receiving port” in Patent Document 1) and an insertion port of the other pipe 120 (“pipe insertion” in Patent Document 1). ”) 121, a push ring 101 externally mounted on the insertion port 121 of the other tube 120, and a seal ring previously installed on the inner periphery of the receiving port 111 of the one tube 110 (in Patent Document 1) “Rubber ring”) 102 and the like.
- a plurality of bolt holes 101a are formed at equal intervals in the pusher wheel 101 so as to screw a push bolt ("pressure bolt” in Patent Document 1) 103 in parallel with the tube axis of one tube 110. ing.
- a conical tapered surface 103 a is formed at the tip of the push bolt 103.
- a plurality of recesses 101 b communicating with the bolt holes 101 a are provided on the inner periphery of the press wheel 101.
- the recess 101b has an inclined surface 101c on the receiving port 111 side and a vertical surface 101d on the opposite side.
- the locking body 104 includes an arc-shaped claw portion 104 a that bites into the outer peripheral surface of the insertion port 121 of the other tube 120, and a head portion 104 b that is pressed by a tapered surface 103 a formed at the distal end portion of the push bolt 103. I have. And the pressure receiving recessed part (not shown) in which the one part curved surface of the taper surface 103a of the pushing bolt 103 fits in the head 104b of the latching body 104 is provided.
- such a pipe joint retaining push ring is in an inclined state so that the locking body 104 is along the inclined surface 101c immediately after one pipe 110 and the other pipe 120 are connected.
- the claw portion 104a bites into the outer peripheral surface of the insertion opening 121 of the other tube 120 at a wedge-shaped inclination angle.
- the pipe joint retaining push ring disclosed in Patent Document 1 is configured such that the claw portion 104a of the locking body 104 only bites into the outer peripheral surface of the insertion port 121 by tightening the push bolt 103.
- the push bolt 103 is loosened in an attempt to disassemble the tube 110 and the other tube 120, the claw portion 104a of the locking body 104 cannot be removed from the insertion port 121. That is, the one tube 110 and the other tube 120 are connected to each other. It cannot be dismantled.
- the pipe joint retaining push ring disclosed in Patent Document 1 is only being stored in the recess 101b of the push ring 101 in the retaining ring 104, so that it is being transported to a construction site for fastening two pipes.
- the locking body 104 stored in the recess 101b may fall off and be lost.
- the locking body 104 and the downward surface of the recess 101b may be temporarily fixed with a double-sided adhesive tape or the like so that the locking body 104 does not fall out of the recess 101b.
- the temporarily fixed locking body 104 loses its function of preventing the drop off due to peeling of the double-sided adhesive tape or the like due to the tightening operation of the push bolt 103. Reconstruction becomes difficult.
- the pipe joint retaining push ring disclosed in Patent Document 1 causes the claw portion 104a of the locking body 104 stored in the recess 101b to bite into the other pipe 120 with an inclination angle.
- a relatively thick spacer (not shown) is interposed between the locking body 104 and the vertical surface 101d.
- the locking body 104 and the vertical surface 101d maintain a certain distance by the spacer, when the push bolt 103 is operated, the spacer becomes an obstacle and the movement along the inclined surface 101c cannot be obtained.
- the locking member 104 cannot obtain a sufficient inclination range of the recess 101b, so that the claw portion 104a may not sufficiently bite into the outer peripheral surface of the insertion slot 121.
- the present invention is such that when the locking body is no longer pressed by the push bolt, the claw portion that has bite into the outer peripheral surface of the other pipe is pulled out from the outer peripheral surface. It is another object of the present invention to provide a pipe joint in which the locking body can obtain a sufficient tilting range when an external force in the direction in which the other pipe comes out of the one pipe is applied so as not to be lost.
- an outward flange portion is provided at the opening edge of the receiving port, and a plurality of fastening portions are provided at a certain interval in the flange portion.
- a locking body having a portion, a push bolt for projecting the locking body from the inner peripheral surface of the push ring, and an elastic member holding the lock body, the push ring facing the seal ring Fastened to the fastening part of the one pipe by fastening means facing the fastening part of the one pipe and the annular pressing part that presses the surface
- a space portion provided so as to communicate with the female screw between the vertical portion on the side of the shaft-like portion that is directed perpendicular to the outer peripheral surface of the other tube, and an opening.
- the elastic member has elasticity, and before fastening one tube and the other tube So that the locking body can be drawn into the space portion along the inclined surface of the space portion, and the claw portion of the locking body can be retracted into the space portion and can be protruded from the space portion.
- the locking body is held by a push ring.
- the engaging body is accommodated in the space portion of the action portion provided in the push ring, and the engaging body is drawn along the inclined surface of the space portion by the elastic member, thereby Not only the claw portion of the stop body retreats into the space portion, but also the locking body can be prevented from being lost during the transportation of the pipe joint.
- the locking body is tightened with the push bolt, and the claw portion of the locking body protrudes from the space portion and bites into the outer peripheral surface of the other tube when the taper portion of the pressing bolt presses the head of the locking body. .
- the locking bolt is loosened and the locking body is not pressed, so that the locking body is drawn to the back side of the space by the elastic member, and the other bit It is possible to get out of the tube insertion. A series of these movements are performed along the inclined surface.
- the elastic member is an annular elastic member, and a notch for locking the elastic member is formed on both side surfaces of the locking body, and the action portion of the push ring Preferably, a groove for locking the elastic member is formed.
- the elastic member is an annular elastic member, it can be assembled by a simple elastic member. Then, the elastic member can be prevented from coming off by being locked to the groove formed in the notch portion formed on both side surfaces of the locking body and the action portion of the press wheel.
- the locking body has a groove into which the elastic member is fitted in a front surface facing a vertical surface of the space portion.
- the locking body since the groove into which the elastic member is fitted is formed on the front surface of the locking body facing the vertical surface of the space portion, the locking body is along the inclined surface of the space portion. Since the elastic member does not intervene between the front surface and the vertical surface of the locking body when the tilted posture is changed to the upright position along the vertical surface, the locking body is completely against the insertion opening of the other pipe.
- the tilting range can be up to a posture perpendicular to the angle.
- a pipe joint in which a locking body is accommodated in a space provided in a push ring, and the locking body is drawn into the space by an elastic member. It can be prevented from being lost, and when the other tube is about to escape from one tube, the tilting range can be up to a vertical posture.
- FIG. 1 shows an embodiment of a push ring constituting a pipe joint according to the present invention, wherein (a) is a perspective view seen from the front side, and (b) is a perspective view seen from the back side.
- One Embodiment of the push ring which comprises the pipe joint which concerns on this invention is shown, (a) is a front view, (b) is a side view, (c) is a rear view.
- FIG. 1 It is a section side view showing one embodiment of a state when the power of the direction which separates is applied to two pipes fastened by the pipe joint concerning the present invention.
- An example of the conventional pipe joint pipe joint retaining push ring
- (a) is a cross-sectional side view at the time of fastening
- (b) is a cross-sectional side view when the pipe starts to be pulled out.
- an insertion port of the other pipe hereinafter referred to as “second pipe” 120 is inserted into the receiving port 111 of one pipe (hereinafter referred to as “first pipe”) 110,
- a seal ring 102 fitted between the inner peripheral surface of the receiving port 111 of the first tube 110 and the outer peripheral surface of the insertion port 121 of the second tube 120 is added toward the back of the first receiving port 111.
- the first tube 110 and the second tube 120 are fastened in a sealed state.
- the first pipe 110 is provided with an outward flange portion 112 at the opening edge of the receiving port 111, and a fastening portion 113 is provided at a certain interval in the flange portion 112.
- the fastening portion 113 is usually formed with a female screw for screwing the fastening bolt 130 as a fastening means, but it may be a simple through hole and the fastening bolt 130 may be fastened with a nut.
- a plurality of such fastening portions 113 are provided in pairs (only one is shown).
- a pipe joint has the nail
- the locking body 20 includes a pressing bolt 30 for projecting the locking body 20 from the inner peripheral surface of the press wheel 10, and an elastic member 40 that holds the locking body 20.
- an elastic annular member such as an expandable O-ring is used.
- the push ring 10 is provided with an annular pressing portion 11 that presses against the facing surface of the seal ring 102 on the back side (the side facing the receiving port 111 of the first tube 110).
- a plurality of fastening portions 12 facing the fastening portion 113 of the first pipe 110 are provided, and an action portion 13 is provided adjacent to the fastening portion 12.
- the fastening portion 12 of the press wheel 10 is a through hole, and a fastening bolt 130 is inserted through the through hole.
- the action part 13 is provided between the pair of fastening parts 12.
- the action portion 13 covers the shaft-like portion 13b in which the female screw 13a is formed in the direction along the second tube 120 and the inner end of the female screw 13a with a space therebetween, and is continuous with the pressing portion 11.
- a support portion 13c and a space portion 13d provided so as to communicate with the female screw 13a between the shaft-like portion 13b and the pressing portion 11 are provided.
- the shaft portion 13 b is provided on the front side that does not face the pressing portion 11. Further, the space portion 13d is inclined by a vertical surface 13e on the side of the shaft-like portion 13 that is oriented perpendicularly to the outer peripheral surface of the second tube 120 and an inclined surface 13f of the inner surface that inclines the support portion 13c. .
- This space portion 13d is formed so that the opening side (portion facing the outer peripheral surface of the second tube 120) is wide and the back side (portion continuing to the female screw 13a) is narrow.
- an opening portion 13g is provided, and a locking portion 13h projects from the opening portion 13g.
- a groove 13i is formed over the entire width on the back side of the locking portion 13h (the side facing the flange portion 112 of the first tube 110).
- the push bolt 30 includes a shaft portion 31 formed with a male screw that is screwed into the female screw 13 a of the push ring 10, and a conical shape protruding from the tip of the shaft portion 31 to enter the space 13 d. And a head portion 33 provided at the proximal end of the shaft portion 31.
- the locking body 20 is a small piece housed in the space portion 13 d, and a push bolt 30 on the opposite side of the claw portion 21 that bites into the outer peripheral surface of the second tube 120.
- the head portion 22 is in contact with the tapered portion 32.
- the head portion 22 is provided with an arc-shaped depression 22a so that the tapered portion 32 of the push bolt 30 hits the surface.
- the recess 22a is not essential and may be flat.
- the claw portion 21 is formed in an arc shape along the outer peripheral surface of the second tube 120, and further has a tapered knife edge shape.
- Such a locking body 20 is held by the support portion 13c by the elastic member 40 along the inclined surface 13f of the space portion 13d, and the taper portion 32 of the push bolt 30 pushes the head portion 22 so that the claw portion 21 protrudes from the space 13d.
- notches 23 for locking the elastic member 40 such as an O-ring are formed on both side surfaces of the locking body 20.
- a groove 24 into which an elastic member 40 such as an O-ring is fitted is formed on the front surface of the locking body 20 (the surface facing the shaft-like portion 13b). By fitting the elastic member 40 into the groove 24, the elastic member 40 can be prevented from protruding in front of the locking body 20.
- This pipe joint is configured as described above. Next, a fastening method and a usage mode will be described with reference to FIGS. 4 to 6. In addition, since this latching body 20 is hold
- the pipe joint has an insertion port 121 of the second pipe 120 inserted into the receiving port 111 of the first pipe 110, and the inner peripheral surface of the receiving port 111 of the first pipe 110 and the first pipe 110.
- the fastening bolt 130 is simply tightened from the through hole of the push ring 10 to the fastening portion 113 of the first pipe 110.
- the push bolt 30 is loosened, and the locking body 20 is inclined by the elastic member 40 so as to follow the inclined surface 13f of the space portion 13d.
- the claw portion 21 of the locking body 20 is in a state of retreating into the space portion 13d.
- the pressing portion 11 of the press wheel 10 is in a state of contacting the facing surface of the seal ring 102.
- the taper portion 32 of the push bolt 30 hits the head 22 of the lock body 20, and the lock body 20 is moved to the second pipe. Push toward 120 outer peripheral surface. Then, the claw portion 21 of the locking body 20 bites into the outer peripheral surface of the second pipe 120, whereby the fastening of the pipe joint is completed. Also at this time, the locking body 20 has an inclined posture along the inclined surface 13f of the space portion 13d.
- the claw portion 21 of the locking body 20 is attached to the second tube 120 as shown in FIG. Since it bites into the outer peripheral surface, the elastic member 40 is in an extended state, and the locking body 20 is in an upright posture along the vertical surface 13e of the space portion 13d. At this time, since the elastic member 40 is fitted in the groove 24 formed in the front surface of the locking body 20, the locking body 20 is in close contact with the vertical surface 13e without the elastic member 40 becoming an obstacle. Become. However, depending on the magnitude of the external force or the like, the locking body 20 may be in an almost upright inclined state without being in close contact with the vertical surface 13e.
- the elastic member 40 may be a tension spring instead of the annular elastic member.
- the support portion 13c is not provided with the opening portion 13g but is provided with a locking portion 13h for locking the end portion of the tension spring.
- the groove 24 for fitting the elastic member 40 may not necessarily be formed on the front surface of the locking body 20.
- the fastening means 130 may be replaced with appropriate means other than fastening bolts.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
11………押圧部
12………締結部
13………作用部
13a……雌ネジ
13b……軸状部
13d……空間部
13e……垂直面
13f……傾斜面
13i……溝
20………係止体
21………爪部
22………頭部
23………切欠部
24………溝
30………押ボルト
31………軸部
32………テーパ部
40………弾性部材
110……一方の管(第1の管)
111……受口
112……フランジ部
113……締結部
120……他方の管(第2の管)
121……挿口
130……締結手段(締結ボルト)
Claims (3)
- 受口の開口縁部に外向きのフランジ部を設け、該フランジ部に一定の間隔を空けて複数の締結部を設けた一方の管の受口内に、他方の管の挿口を挿入した際、一方の管の受口の内周面と他方の管の挿口の外周面との間に嵌め込まれたシールリングを一方の管の受口の奥に向かって押圧することで、一方の管と他方の管の間をシールして締結する管継手であって、
他方の管の挿口に外装される環状の押輪と、他方の管の外周面に食い込む爪部を有する係止体と、該係止体を前記押輪の内周面から突出させるための押ボルトと、前記係止体を保持する弾性部材とを備え、
前記押輪は、前記シールリングの対向面を押し当てる環状の押圧部と、前記一方の管の締結部と対向して締結手段により前記一方の管の締結部に締結される複数の締結部と、該締結部に隣接した作用部とを備え、
該作用部は、他方の管に沿う方向の雌ネジを形成した軸状部と、該軸状部と前記押圧部との間で前記雌ネジと連通するように設けられた空間部とを備え、該空間部は、他方の管の外周面に対して垂直に向けられた前記軸状部側の垂直面と、開口側が広く、奥側が狭くなるように前記垂直面に対して傾斜した前記押圧部側の傾斜面とを備えて形成され、
前記押ボルトは、前記押輪の雌ネジに螺合する軸部と、該軸部の先端から円錐状に突出して前記空間部内に位置するテーパ部とを有し、
前記係止体は、前記空間部内に収納されるものであり、前記押ボルトのテーパ部に当接する頭部を前記爪部と反対側に有し、
前記弾性部材は、伸縮性を有し、一方の管と他方の管とを締結する前後で前記係止体を前記空間部の傾斜面に沿わせるようにして前記空間部内に引き寄せ、かつ、係止体の爪部を空間部内に退入させ、また、空間部内から突出させ得るように係止体を押輪に保持させることを特徴とする管継手。 - 前記弾性部材は、環状弾性部材であり、前記係止体の両側面には、弾性部材を係止させる切欠部が形成され、前記押輪の作用部には、弾性部材を係止させる溝が形成されていることを特徴とする請求項1に記載の管継手。
- 前記係止体は、前記空間部の垂直面と対向する正面に、前記弾性部材を嵌め込む溝が形成されていることを特徴とする請求項2に記載の管継手。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/060,403 US20120274062A1 (en) | 2010-08-27 | 2010-08-27 | Pipe joint |
JP2010546969A JP4933664B2 (ja) | 2010-08-27 | 2010-08-27 | 管継手 |
PCT/JP2010/064625 WO2012026037A1 (ja) | 2010-08-27 | 2010-08-27 | 管継手 |
CA2733285A CA2733285A1 (en) | 2010-08-27 | 2010-08-27 | Pipe joint |
PCT/JP2011/069131 WO2012026513A1 (ja) | 2010-08-27 | 2011-08-25 | 管継手 |
TW100130687A TW201233931A (en) | 2010-08-27 | 2011-08-26 | Pipe joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/064625 WO2012026037A1 (ja) | 2010-08-27 | 2010-08-27 | 管継手 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012026037A1 true WO2012026037A1 (ja) | 2012-03-01 |
Family
ID=45723064
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/064625 WO2012026037A1 (ja) | 2010-08-27 | 2010-08-27 | 管継手 |
PCT/JP2011/069131 WO2012026513A1 (ja) | 2010-08-27 | 2011-08-25 | 管継手 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/069131 WO2012026513A1 (ja) | 2010-08-27 | 2011-08-25 | 管継手 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120274062A1 (ja) |
JP (1) | JP4933664B2 (ja) |
CA (1) | CA2733285A1 (ja) |
TW (1) | TW201233931A (ja) |
WO (2) | WO2012026037A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10316999B2 (en) * | 2015-02-16 | 2019-06-11 | Nihonkansen Kogyo Kabushiki Kaisha | Pressure pipe connection method and method for constructing pressure pipe with flange |
CN108443613B (zh) * | 2018-04-23 | 2024-05-14 | 浙江想能睡眠科技股份有限公司 | 一种软硬可调床垫的快速插拔气密充气接口 |
CN111571219B (zh) * | 2020-04-07 | 2023-07-07 | 宁波亚大自动化科技有限公司 | 管道接头多轴自动加工设备 |
CN113175573A (zh) * | 2021-03-10 | 2021-07-27 | 浙江中创科技有限公司 | 装配式防排烟风管法兰快速拆卸接头 |
CN113983251B (zh) * | 2021-12-03 | 2024-08-27 | 东南管阀股份有限公司 | 一种管道防脱连接组件 |
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2010
- 2010-08-27 WO PCT/JP2010/064625 patent/WO2012026037A1/ja active Application Filing
- 2010-08-27 CA CA2733285A patent/CA2733285A1/en not_active Abandoned
- 2010-08-27 JP JP2010546969A patent/JP4933664B2/ja not_active Expired - Fee Related
- 2010-08-27 US US13/060,403 patent/US20120274062A1/en not_active Abandoned
-
2011
- 2011-08-25 WO PCT/JP2011/069131 patent/WO2012026513A1/ja active Application Filing
- 2011-08-26 TW TW100130687A patent/TW201233931A/zh unknown
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JPS4898713U (ja) * | 1972-02-19 | 1973-11-21 | ||
JPS548721U (ja) * | 1977-06-21 | 1979-01-20 | ||
JPS63178687U (ja) * | 1987-05-12 | 1988-11-18 | ||
JP2002257275A (ja) * | 2001-02-28 | 2002-09-11 | Kawasaki Kiko Kk | 管継手抜け止め押輪 |
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Also Published As
Publication number | Publication date |
---|---|
JPWO2012026037A1 (ja) | 2013-10-28 |
CA2733285A1 (en) | 2012-02-27 |
JP4933664B2 (ja) | 2012-05-16 |
US20120274062A1 (en) | 2012-11-01 |
WO2012026513A1 (ja) | 2012-03-01 |
TW201233931A (en) | 2012-08-16 |
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