WO2012142862A1 - 薄壁金属管与管接头的连接方法 - Google Patents

薄壁金属管与管接头的连接方法 Download PDF

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Publication number
WO2012142862A1
WO2012142862A1 PCT/CN2012/000558 CN2012000558W WO2012142862A1 WO 2012142862 A1 WO2012142862 A1 WO 2012142862A1 CN 2012000558 W CN2012000558 W CN 2012000558W WO 2012142862 A1 WO2012142862 A1 WO 2012142862A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
bump
pipe joint
top cylinder
pipe body
Prior art date
Application number
PCT/CN2012/000558
Other languages
English (en)
French (fr)
Inventor
庞浩辉
Original Assignee
Pang Haohui
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 Pang Haohui filed Critical Pang Haohui
Priority to EP12774512.3A priority Critical patent/EP2700861B1/en
Publication of WO2012142862A1 publication Critical patent/WO2012142862A1/zh
Priority to US14/060,609 priority patent/US20140042742A1/en

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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0231—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member with specially adapted means for positioning the threaded member behind the collar
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall

Definitions

  • the invention relates to the technical field of liquid and gas conveying pipeline connection, in particular to the use of thin-walled metal sealing connection technology.
  • the object of the present invention is to overcome the irrationality of the above-mentioned existing connection technology, and to provide a simple and quick installation and disassembly: fast loading, quick disassembly, and quick maintenance to solve the cracking of the pipe weld during installation or There is no way to repair the hidden danger and the pipe is drilled.
  • a thin-walled metal pipe and pipe fitting technical method including a thin-walled metal pipe body, a pipe joint, a sealing ring and a top cylinder, and avoiding the welding pliers at the end of the pipe body Pressing the bump, the top sleeve is placed behind the bump, and the front of the bump is inserted into the sealing ring. They are inserted into the stepped hole of the internal thread of the pipe joint, and when the external thread of the top cylinder is screwed into the pipe joint, the top cylinder The port presses against the bump of the pipe body and pushes the seal ring at the same time. At this time, the pipe body, the pipe joint and the seal ring form a retractable and firm sealing movable connection structure.
  • connection method does not require any damage operation such as clamping, welding, and expansion, and each tube is alive, easy to install and easy to disassemble, and has low labor intensity, and is more compact than the compression type, the welding type, and the expansion type. It is operative, flexible, practical, and more importantly, the tube body, the pipe joint, the sealing ring 3, and the top tube form a unique balanceable displacement retractable and firm sealing joint structure method, which is more suitable The installation location is suitable for use in a small environment, which can greatly reduce the space area of the pipeline well and has good economy.
  • FIG. 1 is a schematic view of a connection technique at the time of the present invention.
  • this embodiment is mainly composed of a thin-walled stainless steel pipe body 1, a pipe joint 2, a rubber seal ring 3, and a top cylinder 4.
  • a thin-walled stainless steel pipe body 1 is clamped to the bump 11 and the inner wall of the pipe joint 2 is opened.
  • the stepped hole 21 corresponding to the sealing ring 3, the inner wall of the pipe joint 2 is provided with an internal thread 22 corresponding to the top cylinder 4, and when assembled, the top cylinder 4 is inserted into the pipe body 1 and clamped in the pipe body with a special tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

说 明 书
薄壁金属管与管接头的连接方法
技术领域：
本发明涉及液体、 气体输送管道连接技术领域， 特别是使用薄壁金属密封 连接技术。
背景技术：
从一九九四年起塑料管道使用几年后出现物理性能差如管道严重弯曲变 形， 冻破管， 阳光照射下脆裂等现象较普遍， 而传统镀锌管化学性能差如卫生 性差， 寿命短， 污染水质。 我国于一九九七年已发文禁止在给水管道领域使用。 随着人民生活水平不断提高， 卫生环保， 耐用美观的薄壁不锈钢水管， 它具有 良好的物理和化学性能， 在德国、 日本等国家极受欢迎。 在我国从 2002年后， 薄壁不锈钢水管已逐步应用于我国较高档建筑物中的给水、 热水管道输送， 使 用效果良好。
如何让薄壁不锈钢水管在我国大规模普及使用， 必须找到解决现时不锈钢 水管连接安装、 拆卸困难技术方法， 综合现时市场上连接方式有： 卡压式、 承 插焊式， 上述连接方式， 技术要求高， 劳动强度大， 在安装施工过程中如有漏 水或管道更改时， 无法拆卸， 只能用特殊工具切断管子， 安装、 拆卸时须要有 较宽阔空间否则无法安装及拆卸， 间时安装时专用工具价格昂贵等现象造成工 程造价偏高。 目前有一种扩环式活接方式， 在一定程度上解决安装， 拆卸难的 问题， 但经过使用一段时间存在弊端如下：
1、 管材拆环时， 须要对管端进行强力拉伸极容易造成焊缝开裂或有暗裂现 象。
2、 管道暗装使用过程中万一被冲击钻钻穿孔时， 没办法在管子端部扩环， 即无法维修。
发明内容- 本发明的目的是克服上述已有连接技术不科学之处， 提出一种安装、 拆卸 更加简易快捷达到： 快装、 快拆、 维修快的目的解决了安装时造成管子焊缝开 裂或暗裂的隐患和管子被钻穿后没办法维修现象。 同时具有管道温度变化时管 材与管件之间有轴向平衡较位的可伸缩连接结构方法。
本发明的目的是通过如下技术方案实现的， 薄壁金属管与管件连接技术方 法， 包括有薄壁金属管体、 管接头、 密封圈和顶筒， 在管体的端部避开焊缝钳 压起凸点， 顶筒套于凸点后面， 凸点的前方套进密封圈.， 它们一起插入管接头 内螺纹的阶梯孔内， 将顶筒的外螺纹旋进管接头时， 顶筒的端口顶压着管体的 凸点同时推压密封圈， 此时管体、 管接头、 密封圈三者之间形成可伸缩牢固密 封活动式连接结构方法。
这样的连接方法管体无须进行卡压、 焊接、 扩环等损伤性操作， 每段管都 是活接， 易装易拆， 劳动强度低， 比起卡压式、 焊接式、 扩环式更具操作性， 灵活性， 实用性， 更重要的是， 管体、 管接头、 密封圈三、 顶筒之间形成独有 的可平衡移位的可伸缩牢固密封活接结构方法， 更适宜在安装位置狭小环境中 应用， 可大大地减少管道井空间面积具有良好经济性。
附图说明- 图 1是本发时的连接技术示意图。
具体实施方法- 参见图 1， 本实施例主要由薄壁不锈钢管体 1， 管接头 2， 橡胶密封圈 3， 顶筒 4， 构成。 特别之处是管体 1的端部钳压起凸点 11， 管接头 2的内壁开有 与密封圈 3相对应的阶梯孔 21， 管接头 2内壁开有与顶筒 4对应的内螺紋 22， 装配连接时， 将顶筒 4套进管体 1中， 用专用工具在管体钳压起凸点 11， 再将 密封圈 3套进管体 1中的凸点 U前， 将它们一起插入管接头 2内， 把顶筒 4拧 入管接头 2的内螺纹 23， 拧紧时凸点 11受推压的同时迫紧密封圈 3， 使用密封 圈 3与管接头 2中的顶筒收紧完成闭合生， 管体凸点与管接头承插阶梯孔 21之 间仍然有 2- 5mm距离， 从而保障管材受热彭胀时有足够伸展移位空间， 即构成 可伸缩牢固密封连接技术方法。 一
当然， 这里仅列举一种较佳的实施方式， 本技术方案可作其它等同或类同 的变化， 这里不再陈述， 但它们应 于本专利的保护范围。

Claims

1、 薄壁金属管与连接管件技术方法， 包括有薄壁金属管体， 管接头， 密封 圈和顶筒， 管体的端部钳压起凸点， 顶筒套于凸点后面， 凸点前方套进密封圈， 它们一起插入管接头内， 将顶筒旋进管接头内螺紋内， 当拧紧顶筒时， 顶筒端 口推压管体凸点的同时压迫密封圈， 此时管体， 管接头， 密封圈, 顶筒之间形 成可伸缩固密封可折连接方法。
2、 根据权利要求 1所述的管体端部的凸点可以是一点或两点， 环绕管体凸 点与凸点之间可以不等距分布， 但要避开在焊缝处钳压凸点。
3、 根据权利要求 2所述管体的凸点与管端的距离小于等于 60mm; 各凸点 与管口之间间距离要相等； 凸点的高度比管体外径不能高出 6mm。
4、 根据权利要求 1所述的连接管件， 其特点是把顶筒端口推压着管体中的 凸点旋进管接头的内螺紋后， 再用把手拧累顶筒， 此时管体的凸点与承插口与 阶梯孔之间保留有 2mm以上轴向可伸缩余量。
PCT/CN2012/000558 2011-04-20 2012-04-25 薄壁金属管与管接头的连接方法 WO2012142862A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12774512.3A EP2700861B1 (en) 2011-04-20 2012-04-25 Connection method for thin wall metal pipe and pipe joint
US14/060,609 US20140042742A1 (en) 2011-04-20 2013-10-22 Combination of thin-walled pipe and joint, and method for forming the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110101039.9A CN102748547B (zh) 2011-04-20 2011-04-20 薄壁金属管与管件连接技术方法
CN201110101039.9 2011-04-22

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PCT/CN2012/000687 Continuation-In-Part WO2012146069A1 (zh) 2011-04-20 2012-05-18 薄壁金属管件与薄壁金属管连接技术方法

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Cited By (1)

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CN110925502A (zh) * 2019-12-11 2020-03-27 滕州市华正软接头有限公司 一种安装密封性好的金属软管

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140042742A1 (en) * 2011-04-20 2014-02-13 Zhaohui Shi Combination of thin-walled pipe and joint, and method for forming the same
CN103170940A (zh) * 2013-04-01 2013-06-26 国家电网公司 伞齿轮中间轴绝缘扳手
CN109386674B (zh) * 2017-08-08 2020-06-23 中国航发商用航空发动机有限责任公司 一种管接头的公头和一种管接头

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GB2207722A (en) * 1987-07-02 1989-02-08 Bristol Bending Services Limit Seals for use in sealing tube and pipe joints
US5516156A (en) * 1991-10-25 1996-05-14 Nwd International, Inc. Hydraulic port fittings
WO2002055917A1 (en) * 2001-01-09 2002-07-18 Linkindex Limited Pipe connection
CN1945086A (zh) * 2005-10-09 2007-04-11 王春燕 一种管道连接管件
CN201034220Y (zh) * 2007-02-13 2008-03-12 鸿基不锈钢有限公司 管道接合系统以及管道接头配件
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CN101660641A (zh) * 2008-08-27 2010-03-03 王周城 压缩式薄壁管连接管件

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110925502A (zh) * 2019-12-11 2020-03-27 滕州市华正软接头有限公司 一种安装密封性好的金属软管
CN110925502B (zh) * 2019-12-11 2022-11-01 滕州市华正软接头有限公司 一种安装密封性好的金属软管

Also Published As

Publication number Publication date
EP2700861A4 (en) 2015-04-15
CN102748547A (zh) 2012-10-24
EP2700861B1 (en) 2016-10-05
CN102748547B (zh) 2014-10-22
EP2700861A1 (en) 2014-02-26

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