WO2013104109A1 - 活节管件用的双锥体环 - Google Patents

活节管件用的双锥体环 Download PDF

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Publication number
WO2013104109A1
WO2013104109A1 PCT/CN2012/070177 CN2012070177W WO2013104109A1 WO 2013104109 A1 WO2013104109 A1 WO 2013104109A1 CN 2012070177 W CN2012070177 W CN 2012070177W WO 2013104109 A1 WO2013104109 A1 WO 2013104109A1
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Prior art keywords
ring
pipe
locking
cylindrical
pipe fitting
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PCT/CN2012/070177
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English (en)
French (fr)
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葛文宇
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Priority to PCT/CN2012/070177 priority Critical patent/WO2013104109A1/zh
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    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines

Definitions

  • the invention relates to a pipe connecting member, in particular to a simple processing, convenient and quick installation, capable of meeting the expansion and contraction deformation of the pipe due to temperature change, not destroying the surface of the pipe body, reducing the cost of the pipe connection, and meeting the anti-corrosion requirements.
  • Double cone ring for tube fittings Double cone ring for tube fittings.
  • the flexible rubber sealing ring connected thereto is deformed and expanded from the opening of the locking ring, and it is necessary to add a pad between the tapered locking ring and the sealing ring.
  • the film not only has troublesome processing, but also increases the cost of pipe connection.
  • Chinese patent application number is 200410020582.6
  • the sealing function is realized by using a conical sealing ring.
  • the locking connection function is to use a snap ring, and a gasket is also added between the sealing ring and the snap ring. After the three components are installed, the connection can be made, the pipe installation is still troublesome, and the manufacturing cost is also high.
  • the invention patent discloses a 'wedge taper block combination locking pipe connecting method' in which a 'flange locking connection method' is used.
  • This connection method The tapered inner bore of the locking flange is pressed against the tapered oblique back of the wedge-shaped tooth block, and the wedge-shaped tooth block is pressed, and the teeth on the inner side of the wedge-shaped tooth block are tightly bitten.
  • the locking flange is such that the connecting tube is locked by the wedge-shaped tooth block to realize the connection between the tube and the tube.
  • Several wedge-cone shaped blocks are embedded in a conical block holder.
  • the hard teeth on the inside of the wedge-cone block can bite into the outer skin of the tube. Micron deep, although the locking connection of the pipe is strengthened, it destroys the anti-corrosion protection layer of the pipe surface and reduces the service life of the pipe; the addition of a block bracket also increases the connection cost, and the installation is still three parts: Seal ring, block bracket, and block are still more troublesome to install.
  • the invention is to solve the above technical problems existing in the prior art, and provides a simple processing, convenient and quick installation, can meet the expansion and contraction deformation of the pipeline due to temperature change, does not damage the surface of the pipe body, can reduce the cost of the pipe connection, and satisfies
  • a double cone ring is used for the joint pipe fittings required for corrosion protection.
  • the technical solution of the present invention is: a double cone ring for a joint pipe fitting, an annular body made of rubber or plastic, which is a cylindrical hole, and an axial middle portion of the outer side of the annular body is cylindrical and axial.
  • the two ends are conical, and have an annular groove having a height equal to that of the cylindrical shape on the outer surface of the cylindrical shape, and a metal hoop having the same size as the annular groove is built in the annular groove.
  • a plurality of circumferentially distributed steel balls are embedded in the conical mid-waist of the one side, and the spacing between the steel balls is 5 ⁇ 80 mm
  • the steel ball is 10 to 50 microns higher than the outer surface of the annular body.
  • the invention is made of a flexible material such as rubber or plastic, and the conical ring body in the middle end of the connection is subjected to the pressing force of the lock nut or the locking flange, and the tapered tapered surface on the rear end will be
  • the horizontal and vertical force components are generated, and the horizontal component force is transmitted through the intermediate cylinder and the metal hoop, and the tapered ring body at the front end can be pushed, and the front tapered ring body is deformed by force and tightly filled with the pipe fittings. Sealing is achieved with the gap between the tubes; the vertical force component allows the rear tapered ring body to tightly wrap the tube for a locking connection. If the temperature changes to cause the tube length to expand and contract, the tube can slide in the tube without affecting the sealing function.
  • the invention changes the sealing and locking function which can be assumed by the three accessories of the sealing ring, the gasket, the locking ring (or the snap ring, the tooth block and the block bracket) to be completed by one piece, and the construction and installation are simple and not damaged.
  • the surface protective layer of the pipe to be connected can meet the expansion and contraction deformation of the pipe due to temperature changes and reduce the cost of pipe connection.
  • FIG. 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • Fig. 2 is a schematic structural view of Embodiment 2 of the present invention.
  • Embodiment 1 As shown in Fig. 1, in the method of connecting the nut to the nut or the flange to be locked, according to the function of the pipe to be connected Selecting a rubber or an annular body 1 made of a plastic substantially equivalent to the rubber elasticity, the outer side of the annular body 1 is cylindrical in the axial direction 2, and the axial ends are conical 3 in the cylindrical shape 2 The outer surface has an annular groove 4 which is equal in height to the cylindrical shape 2, and a metal hoop 5 having the same size as the annular groove 4 is built in the annular groove 4.
  • Embodiment 2 As shown in Fig. 2, the basic structure is the same as that of the embodiment 1, and the difference from the embodiment 1 is the conical shape on the one side.
  • a plurality of uniformly distributed steel balls 2 are embedded in the middle waist, and the distance between the steel balls 2 is 5 to 80 mm, and the steel balls 2 are 10 to 50 ⁇ m higher than the outer surface of the annular body 1.
  • the outer edge of the steel ball 6 is tangent to the cylindrical inner wall surface of the annular body 1, and the outer edge of the steel ball 6 is 10 to 50 microns higher than the outer surface of the conical mid-waist of the annular body 1.
  • the installation method is the same as the prior art, and the pipe fittings can be locked in various flexible seals: Straight, elbow, tee, cross, reducer, inner joint, outer joint, flange joint, plug and other pipe joints are used together; Due to the flexibility of rubber or plastics that are substantially equivalent to rubber elasticity, it can be adapted to tolerance variations in the outer diameter of pipes of various specifications.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

活节管件用的双锥体环 技术领域
本发明涉及一种管道连接件，特别是一种加工简单、安装方便快捷、能满足管道因温度变化而产生的伸缩变形、不破坏管体表面、可降低管道连接成本、满足防腐蚀要求的活节管件用的双锥体环。
背景技术
中国专利号 ZL01241612.6 的'活节式快装管件'用的是'螺母锁紧连接方法'，锁紧螺母的尾孔套压在锥形锁紧环（外形为圆锥状、内为圆柱形的环体）的锥形斜面上，对锥形锁紧环施加压力，锥形锁紧环就紧紧的箍抱住了管子，锁紧螺母是通过锥形锁紧环来锁紧连接管子的，实现了管子与管子之间的连接。锥形锁紧环是个由纵向开口断开的锥形园环，可以适应各种不同规格管子外径尺寸的公差变化，但是却影响了锁紧环的整体性，降低了锁紧环的锁紧力。同时为了防止锥形锁紧环向前推进时，与之相接的柔性橡胶密封环从锁紧环的开口处变形伸胀出来，就必需在锥形锁紧环与密封环之间加一个垫片，不仅加工麻烦，而且加大了管子连接成本。
中国专利申请号为 200410020582.6 的'法兰锁紧管道连接方法'中实现密封功能的是使用一个锥形密封环，实现锁紧连接功能的是使用一个卡环，在密封环与卡环之间也要加上一个垫片；安装上这三个部件后才能进行连接，管道安装仍是麻烦，而且制做成本也高。
中国专利号 ZL200510045875.4 的发明专利，公开了一种'楔锥形牙块组合锁紧管道的连接方法'，其中使用的是'法兰锁紧连接方法'。在此连接方法中， 锁紧法兰的园锥形内孔套压在楔锥形牙块的锥形斜背上，对楔锥形牙块施加压力，楔锥形牙块内侧的齿牙就紧紧的啮咬住了管子，锁紧法兰就是这样通过楔锥形牙块来锁紧连接管子的，实现管子与管子之间的连接。几块楔锥形牙块是嵌装在一个锥形牙块支架上，楔锥形牙块内侧的坚硬齿牙能啮咬进管子外皮20-50 微米深，虽然管道的锁紧连接力加强了，但却破坏了管子外表的防腐保护层，降低了管道的使用寿命；多了个牙块支架也增加了连接成本，而且安装还是三个部件：密封环、牙块支架、牙块，安装仍有比较麻烦。
发明内容
本发明是为了解决现有技术所存在的上述技术问题，提供一种加工简单、安装方便快捷、能满足管道因温度变化而产生的伸缩变形、不破坏管体表面、可降低管道连接成本、满足防腐蚀要求的活节管件用双锥体环。
本发明的技术解决方案是：一种活节管件用的双锥体环，有用橡胶或塑料制成的内为圆柱孔的环形体，所述环形体外侧的轴向中间为圆柱形、轴向两端为圆锥形，在圆柱形的外表面上有与圆柱形等高的环形槽，在环形槽内置有与环形槽尺寸相等的金属箍环。
在所述一侧的圆锥形中腰处镶嵌多个沿圆周均布的钢珠，所述钢珠之间的间距为 5~80mm ，所述钢珠高于环形体外侧表面 10~50 微米。
本发明有用橡胶或塑料等具有弹性的柔性材料制成，连接中后端锥形环体在受到锁紧螺母或锁紧法兰的推挤压力作用时，在后端锥形斜面上就会产生水平和垂直两个方向分力，水平方向分力通过中间园柱体和金属箍环来传递，能够推压前端的锥形环体，前端锥形环体受力变形而紧紧塞满管件与管子之间的空隙而实现密封；垂直方向分力就能使后端锥形环体紧紧包裹住管子来实现锁紧连接。如温度变化使管子长度出现伸缩变形时，管子可以在管件中滑动而丝毫不会影响密封功能。本发明将原来由密封环、垫片、锁紧环（或卡环、牙块、牙块支架）三个配件才能承担的密封与锁紧功能改变为由一个件完成，施工安装简单、不破坏被连接管子的表面防护层、能满足管道因温度变化而产生的伸缩变形、降低管道连接成本。
附图说明
图 1 是本发明实施例 1 的结构示意图。
图 2 是本发明实施例 2 的结构示意图。
具体实施方式
下面将结合附图说明本发明的具体实施方式。
实施例 1 如图 1 所示， 在螺母锁紧或法兰锁紧的管道连接方法中，根据所要连接管道的使用功能来 选择橡胶或与橡胶弹性基本相当的塑料制成 的内为圆柱孔的环形体 1 ，环形体 1 外侧的轴向中间为圆柱形 2 、轴向两端为圆锥形 3 ，在圆柱形 2 的外表面上有与圆柱形 2 等高的环形槽 4 ，在环形槽 4 内置有与环形槽 4 尺寸相等的金属箍环 5 。
实施例 2 如图 2 所示：基本结构同实施例 1 ，与实施例 1 所不同的是在所述一侧的圆锥形 3 中腰处镶嵌多个沿圆周均布的钢珠 2 ，所述钢珠 2 之间的间距为 5~80mm ，所述钢珠 2 高于环形体 1 外侧表面 10~50 微米。加工时，先将钢珠 6 以 5~80mm 的净间距均匀的布置于园锥形段的模具环形缝中腰处位置，再向模具之间挤（压）注橡胶或塑料的热熔成形原料，钢珠 6 就镶嵌在环形体 1 圆锥形一段的中腰处， 钢珠 6 外缘与环形体 1 圆柱形内壁表面相切，钢珠 6 外缘高出环形体 1 的圆锥形中腰处外表面 10~50 微米。
安装方法同现有技术，可在各种柔性密封承插锁紧的管件： 直通、弯头、三通、四通、变径、内接头、外接头、法兰接头、堵头等管子的连接件中配套使用； 由于橡胶或与橡胶弹性基本相当的塑料具有可伸缩性，可以适应各种不同规格管子外径的公差尺寸变化。

Claims (2)

  1. 一种活节管件用的双锥体环，有用橡胶或塑料制成的内为圆柱孔的环形体（ 1 ），其特征在于：所述环形体（ 1 ）外侧的轴向中间为圆柱形（ 2 ）、轴向两端为圆锥形（ 3 ），在圆柱形（ 2 ）的外表面上有与圆柱形（ 2 ）等高的环形槽（ 4 ），在环形槽（ 4 ）内置有与环形槽（ 4 ）尺寸相等的金属箍环（ 5 ）。
  2. 根据权利要求 1 所述的活节管件用的双锥体环，其特征在于：在所述一侧的圆锥形（ 3 ）中腰处镶嵌多个沿圆周均布的钢珠（ 6 ），所述钢珠（ 6 ）之间的间距为 5~80mm ，所述钢珠（ 6 ）高于环形体（ 1 ）外侧表面 10~50 微米。
PCT/CN2012/070177 2012-01-10 2012-01-10 活节管件用的双锥体环 Ceased WO2013104109A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US654073A (en) * 1899-10-25 1900-07-17 Jacob M Olinger Pipe-coupling.
US4240655A (en) * 1977-11-17 1980-12-23 Andreas Rascher Pipe coupling
CN201177135Y (zh) * 2008-07-02 2009-01-07 贵州联华科技有限公司 补偿式大口径管接头
CN102200210A (zh) * 2011-06-03 2011-09-28 葛文宇 钢珠锥形锁紧环
CN102563276A (zh) * 2012-01-10 2012-07-11 葛文宇 活节管件用的双锥体环

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US654073A (en) * 1899-10-25 1900-07-17 Jacob M Olinger Pipe-coupling.
US4240655A (en) * 1977-11-17 1980-12-23 Andreas Rascher Pipe coupling
CN201177135Y (zh) * 2008-07-02 2009-01-07 贵州联华科技有限公司 补偿式大口径管接头
CN102200210A (zh) * 2011-06-03 2011-09-28 葛文宇 钢珠锥形锁紧环
CN102563276A (zh) * 2012-01-10 2012-07-11 葛文宇 活节管件用的双锥体环

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