WO2020119655A1 - Anneau de raccordement rapide de tuyau - Google Patents

Anneau de raccordement rapide de tuyau Download PDF

Info

Publication number
WO2020119655A1
WO2020119655A1 PCT/CN2019/124154 CN2019124154W WO2020119655A1 WO 2020119655 A1 WO2020119655 A1 WO 2020119655A1 CN 2019124154 W CN2019124154 W CN 2019124154W WO 2020119655 A1 WO2020119655 A1 WO 2020119655A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
clamp
groove
inner ring
sealing ring
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.)
Ceased
Application number
PCT/CN2019/124154
Other languages
English (en)
Chinese (zh)
Inventor
张海若
潘成飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aqua Casting Inc
Original Assignee
Aqua Casting Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aqua Casting Inc filed Critical Aqua Casting Inc
Publication of WO2020119655A1 publication Critical patent/WO2020119655A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
    • F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends tightened by tangentially-arranged threaded pins

Definitions

  • the invention relates to a pipe connection clamp, in particular to a pipe quick connection clamp.
  • the existing pipeline quick-connect clamp includes two clamp bodies in a semi-annular shape, two ends of the clamp body are provided with lugs for receiving threaded connectors, and the inner ring surface of the clamp body is spaced apart There are two convex ribs which are radially convex and extend along the circumferential direction of the inner ring surface, and the inner ring surface is provided with a seal ring groove between the convex ribs; the two clamp bodies can pass through the The bolts of the lugs are connected end-to-end; after the two clamp bodies are connected end-to-end, a central space for receiving pipes can be enclosed, and a sealing ring installed in the sealing ring groove is provided in the central space.
  • the pipeline quick coupling clamp of the above structure mainly has the following defects: First, the distance between the groove bottom of the seal ring groove and the inner ring surface of the rib is the groove depth, and the groove depth is from the middle of the clamp body to the two ends The depth is the same; because the outer circumference of the seal ring of the pipeline quick coupling clamp is greater than the sum of the lengths of the seal ring grooves of the two clamp bodies, after the two clamp bodies are assembled together, there will be gaps at the ends of the clamp rings. When tightening on the pipeline, the compression deformation of the seal ring will protrude from the gap, which is likely to cause poor contact between the section corresponding to the protrusion of the seal ring and the pipeline, resulting in seal failure.
  • the second is that the body of the sealing ring is connected with a retaining ring. Since the retaining ring is firmly connected with the body of the sealing ring, the retaining ring will hinder the free contraction of the sealing ring when the clamp is locked, causing the sealing ring and the retaining ring to form ripples The unevenness of the shape, and as the sealing ring ages, the retaining ring will cause the sealing ring to contract inward, so that the body of the sealing ring and the lip are bonded together, thereby losing the effect of self-sealing and causing the seal to fail.
  • One of the technical problems to be solved by the present invention is to provide a quick connection pipe clamp for the above-mentioned defect one.
  • the seal ring is not easy to protrude from the space between the two clamp bodies, and the seal ring and the Seal failure due to poor pipe contact.
  • the present invention provides a pipeline quick-connect clamp with the following structure, including two clamp bodies in a semi-annular shape, and two ends of the clamp body are provided with protrusions for receiving threaded connectors Lugs, two ribs that are radially convex and extend along the circumferential direction of the inner ring surface are spaced apart on the inner ring surface of the clamp body, and a seal between the ribs is provided on the inner ring surface Ring groove; the two clamp bodies can be connected together end-to-end by bolts passing through the lugs; after the two clamp bodies are connected end-to-end, a central space for receiving pipes can be enclosed and in the central space There is a seal ring installed in the seal ring groove; its structural feature is that: the distance between the groove bottom of the seal ring groove and the inner ring surface of the rib is the groove depth; the groove depth is in the clamp body Is the largest in the middle and smallest at the end of the clamp body.
  • the groove depth gradually decreases from the middle to both ends of the clamp body.
  • the groove of the sealing ring is arranged concentrically with the inner ring surface of the convex rib.
  • the bottom surface of the groove of the sealing ring groove is an elliptical arc-shaped arc surface
  • the inner ring surface of the convex rib is an elliptical arc-shaped arc surface.
  • the second technical problem to be solved by the present invention is to address the above-mentioned defect two, and on the basis of the above technical solutions, the following solutions are further adopted:
  • the sealing ring includes a rubber ring body, and both ends of the rubber ring body are provided with an end wall integrally connected with the rubber ring body and an axial through hole in the central portion, and the inner edge of the end wall is axially convex to form a ring Lip, the sealing ring also includes a retaining ring that is not directly connected with the body of the rubber ring.
  • the retaining ring is two and connected to the two ring lips respectively.
  • a plurality of protrusions are ring-shaped on the inner wall surface of the rubber ring body, and the protrusions are provided with sockets, and the retaining ring is inserted into the sockets.
  • a guide sleeve is connected to the inner ring surface of the retaining ring.
  • annular connector is interposed between the apron body and the ring lip.
  • the annular connector is hollowly formed to form a ring cavity, and an outer ring surface of the annular connector is provided with an opening along the circumferential direction thereof.
  • the ring is connected to the inner ring surface of the ring-shaped connecting body.
  • the inner ring surface of the retaining ring is provided with a plurality of liquid passing holes, and the liquid passing holes communicate with the ring cavity.
  • the groove depth is set to be the maximum in the middle of the clamp body and the minimum at the end of the clamp body, so that when the clamp is tightened, the deformation margin of the seal ring after compression deformation can be shifted from the end of the clamp body to the
  • the central part of the clamp body is assembled, and it is not easy to cause the phenomenon that the end of the clamp body protrudes after the compression ring is deformed under pressure, which can effectively ensure that the seal ring and the pipeline are fully contacted, and the sealing effect can be ensured.
  • the retaining ring is not directly connected with the rubber ring body, the retaining ring not only plays a limiting role, but also does not hinder the free contraction of the sealing ring when the clamp is locked, causing the sealing ring and the retaining ring to form a corrugated shape It is uneven, and with the aging of the seal ring, the retaining ring will not drive the seal ring to shrink inward, which prevents the seal ring body and the ring lip from sticking together and losing the self-sealing effect, resulting in seal failure.
  • Figure 1 is a schematic structural view of the present invention
  • FIG. 2 is a schematic view of the structure of the clamp body in FIG. 1, that is, an orthographic view of the clamp body after cutting along the center line of rotation perpendicular to the clamp body;
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 2;
  • Figure 5 is a schematic diagram of the second structural form of the seal ring
  • FIG. 6 is a schematic diagram of the third structural form of the seal ring
  • FIG. 7 is a schematic diagram of the fourth structural form of the seal ring.
  • the pipeline quick-connect clamp includes two clamp bodies 1 each having a semi-annular shape, and both ends of the clamp body are provided with lugs 2 for receiving threaded connectors, and the clamp body
  • the inner ring surface is provided with two convex ribs 3 radially convex and extending along the circumferential direction of the inner ring surface.
  • the inner ring surface is provided with a sealing ring groove 4 between the convex ribs.
  • the sealing ring groove 4 is arranged concentrically with the inner ring surface of the convex rib.
  • the two clamp bodies can be connected together end to end by bolts 5 passing through the lugs; after the two clamp bodies are connected end to end, a central space for receiving pipes can be enclosed and the central space is provided with
  • the sealing ring 6 installed in the sealing ring groove 4. 2, the distance between the groove bottom of the sealing ring groove 4 and the inner ring surface of the rib 3 is the groove depth; the distance is the distance along the radial direction of the inner ring surface of the rib 3, That is, in the view of FIG. 2, after the radial line passing through the center of rotation of the clamp body intersects the projected contour line of the groove bottom of the seal ring groove 4 and the projected contour line of the inner ring surface of the rib 3, between the two intersection points The distance is the groove depth.
  • the groove depth is the largest in the middle of the clamp body 1 and the smallest at the end of the clamp body 1; H in FIG. 2 represents the groove depth in the middle of the clamp body 1, and h represents the groove depth at both ends of the clamp body 1 .
  • the groove depth gradually decreases from the middle to both ends of the clamp body 1, that is, the value from H to h gradually decreases.
  • the groove bottom surface of the sealing ring groove 4 is preferably designed as an elliptical arc-shaped arc surface
  • the inner ring surface of the rib 3 is preferably designed as an elliptical arc-shaped arc surface; that is, the edge is perpendicular to the clamp body
  • the contour line formed by projecting the bottom surface of the groove 4 of the seal ring is an elliptical arc
  • the inner ring surface of the rib 3 The outline formed by the projection is also an elliptical arc.
  • the advantage of designing the groove bottom surface of the seal ring groove 4 and the inner ring surface of the rib 3 to be an elliptical arc shape is that the central space enclosed by the two clamp bodies connected end to end is oval for receiving pipes Shape, so that the pipeline can be more easily inserted into the central space; after the two clamp bodies are fastened, the clamp body is deformed by force to make the central space round, so that the clamp body can be tightly attached to the pipeline, It can not only ensure a firm connection but also a sealing effect. Therefore, in the products actually put on the market, the generally adopted technical solution is to design the groove bottom surface of the seal ring groove 4 and the inner ring surface of the rib 3 to be an elliptical arc-shaped arc surface.
  • the sealing ring includes a rubber ring body 7.
  • the two ends of the rubber ring body 7 are each provided with the rubber ring body as a whole, and the central portion is provided with an axial through hole
  • the end wall 8, the inner edge of the end wall is axially convex to form a ring lip 9, and the sealing ring further includes a stop ring 10, which can play a positioning and limiting role on the pipe inserted into the clamp to prevent the pipe Over-insertion.
  • the retaining ring 10 is not directly connected with the rubber ring body 7 as a whole, and the retaining ring 10 is two and respectively connected to the two ring lips 9.
  • the present invention also has other embodiments, the basic structure of which is the same as the above structure.
  • the second structural form of the sealing ring 6 is shown in FIG. 5.
  • the sealing ring includes an apron body 7.
  • the apron body is connected as one body and an end wall 8 with an axial through hole is provided in the center.
  • the inner edge of the end wall is axially convex to form a ring lip 9.
  • the seal ring further includes a retaining ring 10, the apron body A plurality of protrusions 11 are looped on the inner wall surface, and the protrusions 11 are provided with sockets.
  • the retaining ring 10 is not directly connected with the rubber ring body 7 as a whole, and the retaining ring 10 is convenient for disassembly and assembly Within the socket.
  • the third structural form of the seal ring 6 is shown in FIG. 6 and is an improvement made on the basis of the second structural form. The improvement is that a guide sleeve 12 is connected to the inner ring surface of the retaining ring 10 The guide sleeve 12 can be inserted into the pipe to guide the pipe inserted into the clamp.
  • the sealing ring includes a rubber ring body 7.
  • the two ends of the rubber ring body 7 are each provided with the rubber ring body as a whole, and the central portion is provided with an axial through hole
  • An end wall 8 an inner edge of the end wall is axially convex to form a ring lip 9, and an annular connector 13 is interposed between the apron body and the ring lip, and the annular connector 13 is hollowly formed to form an annular cavity 14.
  • the outer ring surface of the ring-shaped connecting body is provided with an opening 15 communicating with the ring cavity 14 along the circumferential direction thereof.
  • the seal ring further includes a retaining ring 10 connected to the inner ring of the ring-shaped connecting body Face.
  • a plurality of liquid passage holes 16 are provided on the inner ring surface, the liquid passage holes 16 communicate with the ring cavity 14, and the liquid can enter the ring lip and the rubber ring body from the liquid passage holes 16.
  • the groove depth is set to be the maximum in the middle of the clamp body and the minimum at the end of the clamp body, so that when the clamp is tightened, the deformation margin of the seal ring after compression deformation can be shifted from the end of the clamp body to the
  • the central part of the clamp body is assembled, and it is not easy to cause the phenomenon that the end of the clamp body protrudes after the compression ring is deformed under pressure, which can effectively ensure that the seal ring and the pipeline are fully contacted, and the sealing effect can be ensured.
  • the retaining ring is not directly connected with the rubber ring body, the retaining ring not only plays a limiting role, but also does not hinder the free contraction of the sealing ring when the clamp is locked, causing the sealing ring and the retaining ring to form a corrugated shape It is uneven, and with the aging of the seal ring, the retaining ring will not drive the seal ring to shrink inward, which prevents the seal ring body and the ring lip from sticking together and losing the self-sealing effect, resulting in seal failure.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
  • Joints With Sleeves (AREA)

Abstract

L'invention concerne un anneau de raccordement rapide de tuyau, l'anneau comprenant deux corps (1) d'anneau semi-annulaires, deux extrémités de chaque corps (1) d'anneau étant munies respectivement d'une oreille (2) permettant de recevoir un élément de raccordement vissé ; une surface annulaire interne de chaque corps (1) d'anneau est munie, à un certain intervalle, de deux nervures surélevées (3) faisant saillie radialement vers l'intérieur et s'étendant dans la direction circonférentielle de la surface annulaire interne ; et la surface annulaire interne est munie d'une rainure annulaire d'étanchéité (4) située entre les nervures surélevées (3). Les deux corps (1) d'anneau peuvent être raccordés bout à bout au moyen de boulons (5) passant à travers les oreilles (2) ; les deux corps (1) d'anneau peuvent renfermer un espace central permettant de recevoir un tuyau après avoir été raccordés bout à bout, et l'espace central est muni intérieurement d'une bague d'étanchéité (6) disposée dans la rainure annulaire d'étanchéité (4) ; la distance entre la partie inférieure de la rainure annulaire d'étanchéité (4) et une surface annulaire interne de la nervure surélevée (3) représente une profondeur de rainure ; et la profondeur de rainure est la plus grande au milieu des corps (1) d'anneau, et la moins profonde au niveau des extrémités des corps (1) d'anneau.
PCT/CN2019/124154 2018-12-14 2019-12-10 Anneau de raccordement rapide de tuyau Ceased WO2020119655A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811535127.8 2018-12-14
CN201811535127.8A CN109340484B (zh) 2018-12-14 2018-12-14 一种管道快连卡箍

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WO2020119655A1 true WO2020119655A1 (fr) 2020-06-18

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PCT/CN2019/124154 Ceased WO2020119655A1 (fr) 2018-12-14 2019-12-10 Anneau de raccordement rapide de tuyau

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CN (1) CN109340484B (fr)
WO (1) WO2020119655A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113048308A (zh) * 2021-01-22 2021-06-29 天津市义嘉祥紧固件有限公司 一种方便使用的卡箍
CN114682092A (zh) * 2020-12-30 2022-07-01 广西国宏智鸿环保科技集团有限公司 一种pvdf圆筒膜
US20220228684A1 (en) * 2020-02-27 2022-07-21 Jinan Meide Casting Co., Ltd. Pipe clamp and pipe clamp assembly capable of realizing quick connection
CN115596904A (zh) * 2022-11-09 2023-01-13 艾维希开特精密科技（南通）有限公司（Cn） 一种嵌有石墨烯垫圈的连接装置
US12181083B2 (en) 2022-07-21 2024-12-31 Applied System Technologies, Inc. Pipe coupling
TWI881389B (zh) * 2022-09-17 2025-04-21 大陸商上海威遜機械連接件有限公司 快裝管件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109340484B (zh) * 2018-12-14 2024-05-10 山东莱德管阀有限公司 一种管道快连卡箍

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US20080007061A1 (en) * 2004-05-14 2008-01-10 Victaulic Company Deformable mechanical pipe coupling
CN104204640A (zh) * 2011-11-21 2014-12-10 维克托里克公司 具有深度变化的垫圈凹部的联接器
CN104797871A (zh) * 2012-09-11 2015-07-22 维克托里克公司 具有变化深度的垫片凹穴的联接器
CN105423015A (zh) * 2012-02-08 2016-03-23 维克托里克公司 具有变化深度的容置部的接头
KR101732065B1 (ko) * 2016-05-11 2017-05-11 주식회사 하이스텐 파이프 수밀용 패킹부재
WO2018105798A1 (fr) * 2016-12-09 2018-06-14 주식회사 원대티지케이 Joint d'étanchéité comprenant un bouchon mobile
CN109340484A (zh) * 2018-12-14 2019-02-15 山东莱德管阀有限公司 一种管道快连卡箍
CN109442108A (zh) * 2018-12-14 2019-03-08 山东莱德机械有限公司 一种快连卡箍

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CN201858461U (zh) * 2010-09-17 2011-06-08 浙江海亮股份有限公司 一种快速管接头
CN205118237U (zh) * 2015-11-13 2016-03-30 山东莱德机械有限公司 沟槽式管接头防粘连胶圈
CN205639949U (zh) * 2016-05-09 2016-10-12 开封市翰园石油科技有限公司 卡箍连接件
CN206572087U (zh) * 2017-01-09 2017-10-20 潍坊和特管业发展有限公司 一种双凹头和尖头管卡
CN209262459U (zh) * 2018-12-14 2019-08-16 山东莱德管阀有限公司 一种管道快连卡箍

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080007061A1 (en) * 2004-05-14 2008-01-10 Victaulic Company Deformable mechanical pipe coupling
CN104204640A (zh) * 2011-11-21 2014-12-10 维克托里克公司 具有深度变化的垫圈凹部的联接器
CN105423015A (zh) * 2012-02-08 2016-03-23 维克托里克公司 具有变化深度的容置部的接头
CN104797871A (zh) * 2012-09-11 2015-07-22 维克托里克公司 具有变化深度的垫片凹穴的联接器
KR101732065B1 (ko) * 2016-05-11 2017-05-11 주식회사 하이스텐 파이프 수밀용 패킹부재
WO2018105798A1 (fr) * 2016-12-09 2018-06-14 주식회사 원대티지케이 Joint d'étanchéité comprenant un bouchon mobile
CN109340484A (zh) * 2018-12-14 2019-02-15 山东莱德管阀有限公司 一种管道快连卡箍
CN109442108A (zh) * 2018-12-14 2019-03-08 山东莱德机械有限公司 一种快连卡箍

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220228684A1 (en) * 2020-02-27 2022-07-21 Jinan Meide Casting Co., Ltd. Pipe clamp and pipe clamp assembly capable of realizing quick connection
US12117105B2 (en) * 2020-02-27 2024-10-15 Jinan Meide Casting Co., Ltd. Pipe clamp and pipe clamp assembly capable of realizing quick connection
CN114682092A (zh) * 2020-12-30 2022-07-01 广西国宏智鸿环保科技集团有限公司 一种pvdf圆筒膜
CN113048308A (zh) * 2021-01-22 2021-06-29 天津市义嘉祥紧固件有限公司 一种方便使用的卡箍
US12181083B2 (en) 2022-07-21 2024-12-31 Applied System Technologies, Inc. Pipe coupling
TWI881389B (zh) * 2022-09-17 2025-04-21 大陸商上海威遜機械連接件有限公司 快裝管件
CN115596904A (zh) * 2022-11-09 2023-01-13 艾维希开特精密科技（南通）有限公司（Cn） 一种嵌有石墨烯垫圈的连接装置

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