CN101061341A - 具有改善的强度的管连接装置 - Google Patents
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- 230000007704 transition Effects 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
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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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
- F16L13/146—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by an axially moveable sleeve
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/225—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts a sleeve being movable axially
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
- Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Joints With Sleeves (AREA)
- Laminated Bodies (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
本发明涉及一种管连接装置,包括一个金属的夹紧环(1、1*),为了连接两个彼此插接的金属的管(6、6*、7),该夹紧环可轴向移动到位于外面的管(6、6*)上,其中夹紧环(1、1*)在其内侧:a)具有一个逆着推动方向(A)径向锥形地变窄的入口段(2);b)具有一个逆着推动方向(A)径向锥形地变窄的末端段(4),该末端段在装配位置上产生各管(6、6*、7)的径向的挤压;和c)具有一个设置在入口段(2)与末端段(4)之间的中间段。本发明的目的是进一步发展这种管连接装置,使得受高内压载荷的管连接装置或者由较小弹性的材料制成的管的连接装置是更机械稳定的。这如下实现:中间段(3、3*)构成锥形的。
Description
技术领域
本发明涉及一种管连接装置,包括一个金属的夹紧环,为了连接两个彼此插接的金属的管,该夹紧环可轴向移动到位于外面的管上,其中夹紧环在其内侧:
a)具有一个逆着推动方向径向锥形地变窄的入口段;
b)具有一个沿推动方向径向锥形地变窄的末端段,该末端段在装配位置上产生各管的径向的挤压;和
c)具有一个设置在入口段与末端段之间的中间段。
背景技术
这种管连接装置由德国专利文件DE 38 3 359 C2已知。
这种类型的管连接装置用于将两个金属管相互机械地连接并且同时密封该连接。各管为此相互插接并且通过轴向套上夹紧环而相互夹紧。为了能够相互插接各管,位于外面的管的内径必须大于内管的外径。因此原则上可能的是,或者接合两个具有不同标称直径的管,或者接合两个相同直径的管,此时一个管的末端段必须在连接区域内扩张。
按照引用的专利文件的已知的管连接装置在大多数应用情况中已经证实是杰出的。但是业已显示,在两种确定的应用情况中该已知的连接装置的机械强度需要改善:其一,两个由一种较软的较少弹性的金属例如软的铝合金制成的管的连接的抗扭和抗拉强度是不令人满意的;其二,在钢制的被施加较高的内压的管中可以观察到保持力的减小。
发明内容
因此本发明的目的是进一步发展开头所述类型的管连接装置,使得既使由较软的材料制成的管或者具有高内压的管也可以可靠地并且持久地接合并且密封。
该目的通过将中间段构成锥形的来解决。
中间段的锥形的结构可以按两种方式进行,即使得中间段逆着推动方向变窄或者扩张。当适用接合软的材料,则尤其是提供第一种结构形式。管的变形在较长的区域内进行,使得在连接装置中构成较和谐的应力分布。变形不再仅点式地且塑性地在末端段的区域内进行,而且在中间段的区域内也弹性地进行,使得各管在那里力封闭地接合。
锥形的中间段尤其是可以这样设计尺寸,使得各管在中间段与末端段之间的过渡区域内在塑性范围内变形。这样实现各管的从弹性范围直至塑性范围的无缝过渡。
第二结构形式的特征在于逆着推动方向变宽的中间段,该第二结构形式尤其是提供用于接合较高弹性的受内压载荷的管。扩张给连接装置在中间段的区域内卸载并且导致回弹效果,该回弹效果在紧接着的在末端段上提高的载荷的情况下产生两个管的波纹形的锚固。另外尤其是在接合具有高强度和较大壁厚的管材料时降低装配力。
夹紧环的入口段可以有利地分成两个彼此相继的、在推动方向上径向锥形地变窄的分段,其中设置在嘴部侧的第一分段可以比第二分段具有较大的坡度。通过该措施明显简化夹紧环的推动。
夹紧环在其外侧在中间段的区域内可以有利地设有一个环绕的收缩部。该收缩部有利于该环在中间段的区域内的弹性变形,这导致连接装置的较高的强度。
附图说明
现在借助于实施例详细解释本发明。其中:
图1显示第一结构形式的夹紧环;
图2显示包括扩张的管和图1的夹紧环的管连接装置;
图3显示包括不同直径的管和图1的夹紧环的管连接装置;
图4显示第二结构形式的夹紧环;
图5显示包括扩张的管和图4的夹紧环的管连接装置;
图6显示包括不同直径的管和图4的夹紧环的管连接装置。
具体实施方式
夹紧环1的第一结构形式在图1中以纵剖视图的形式显示。夹紧环1在其内侧具有三个功能的主段,它们沿着夹紧环的纵轴线逆着推动方向A彼此相继。在嘴部侧设置一个入口段2,在入口段上端接一个中间段3。内轮廓在其端部由一个末端段4端接。
入口段2又由两个分段组成,即一个设置在嘴部侧的第一分段2a和一个紧接着的第二分段2b。两个分段2a、2b锥形地变窄,其中第一分段2a比第二分段2b具有较大的坡度。
中间段3同样锥形地变窄。但是坡度明显小于入口段2a、2b的坡度。末端段4也是分成两部分的,即分成一个径向锥形地变窄的缩减段4a和一个比较短的圆柱形段4b。缩减段4a的高的坡度用于在装配位置上径向挤压各管,部分地直至挤压到塑性范围内。圆柱形段4b将其内径压在该收缩部上。在此在接合的连接时产生密封。夹紧环1在其内侧设有一个环绕的收缩部,该收缩部在中间段3的区域内延伸。
图2显示两个管6、7与第一结构形式的夹紧环1在装配位置上的管连接装置。夹紧环1在推动方向A上推到外管6上并且产生管6、7的径向挤压。在中间段3的区域内管6、7在弹性范围内变形,它在朝末端段4的边界区域内过渡成塑性变形。在末端段4上本身出现完全塑性的变形,它导致管6与7之间的真正的形封闭。因此连接是不能松开的。在图2中描述的管6和7具有相同的内径。为了它们可以在夹紧环1的区域内相互插接,管6在那里事先扩张。
同时也可能接合两个具有不同内径的管6*、7。这样在图3中描述的外管6*比内管7具有明显较大的直径,使得它本身不必被扩张。但是上述变形特性是相同的。
图4显示夹紧环1*的第二结构形式。它与第一结构形式1的区别在于中间段3*,该中间段在此逆着推动方向A锥形地变宽。在推动夹紧环1*时,管首先经由入口段2压紧(stauchen)并且随后紧接着又在中间段3*中卸载,以便最终在末端段4中重新被缩减。因此在装配位置时形成大致波纹形的负载曲线,该负载曲线尤其是对高压管连接装置的强度产生积极影响。
管6、6*和7*的波纹形的变形在图5和6中明显可见。在此管在中间区域3*中也几乎弹性变形,而在末端段4中发生塑性变形。
带有变宽的中间段3*的夹紧环1*不仅适用于接合相同直径的管6、7,其中外管6被扩张(见图5),而且也适用于接合不同直径的管6*和7,见图6。
Claims (6)
1.管连接装置,包括一个金属的夹紧环(1、1*),为了连接两个彼此插接的金属的管(6、6*、7),该夹紧环可轴向移动到位于外面的管(6、6*)上,其中夹紧环(1、1*)在其内侧:
a)具有一个逆着推动方向(A)径向锥形地变窄的入口段(2);
b)具有一个逆着推动方向(A)径向锥形地变窄的末端段(4),该末端段在装配位置上产生各管(6、6*、7)的径向的挤压;和
c)具有一个设置在入口段(2)与末端段(4)之间的中间段(3、3*);
其特征在于:
d)中间段(3、3*)构成锥形的。
2.按权利要求1的管连接装置,其特征在于:中间段(3)逆着推动方向(A)径向锥形地变窄。
3.按权利要求2的管连接装置,其特征在于:中间段(3)逆着推动方向(A)径向锥形地变窄成使得该中间段在装配位置上在中间段(3)与末端段(4)之间的过渡区域内产生各管(6、6*、7)在塑性范围内的挤压。
4.按权利要求1的管连接装置,其特征在于:中间段(3*)逆着推动方向(A)径向锥形地变宽。
5.按权利要求1至4之一的管连接装置,其特征在于:入口段(2)又分成两个彼此相继的、逆着推动方向径向锥形地变窄的分段(2a、2b),其中设置在嘴部侧的第一分段(2a)比第二分段(2b)具有较大的坡度。
6.按权利要求1至5之一的管连接装置,其特征在于:夹紧环(1、1*)在其外侧在中间段(3、3*)的区域内具有一个环绕的收缩部(5)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102004055537A DE102004055537A1 (de) | 2004-11-17 | 2004-11-17 | Rohrverbindung mit verbesserter Festigkeit |
DE102004055537.0 | 2004-11-17 |
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CN101061341A true CN101061341A (zh) | 2007-10-24 |
CN100513853C CN100513853C (zh) | 2009-07-15 |
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CNB2005800393387A Expired - Fee Related CN100513853C (zh) | 2004-11-17 | 2005-10-08 | 具有改善的强度的管连接装置 |
Country Status (15)
Country | Link |
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US (1) | US7654588B2 (zh) |
EP (1) | EP1812743B1 (zh) |
JP (1) | JP2008520912A (zh) |
CN (1) | CN100513853C (zh) |
AT (1) | ATE408086T1 (zh) |
BR (1) | BRPI0517726A (zh) |
CY (1) | CY1110420T1 (zh) |
DE (2) | DE102004055537A1 (zh) |
DK (1) | DK1812743T3 (zh) |
ES (1) | ES2317320T3 (zh) |
HK (1) | HK1113602A1 (zh) |
PL (1) | PL1812743T3 (zh) |
PT (1) | PT1812743E (zh) |
SI (1) | SI1812743T1 (zh) |
WO (1) | WO2006053609A1 (zh) |
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CN107532759A (zh) * | 2016-04-14 | 2018-01-02 | (株)韩亚科技 | 密闭型套管 |
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US20080213709A1 (en) * | 2005-11-18 | 2008-09-04 | Russell Clayton | Gas supply coupling for a water heater |
US20090302603A1 (en) * | 2005-11-18 | 2009-12-10 | Russell Clayton | Gas supply coupling for a water heater |
US20100327579A1 (en) * | 2009-06-25 | 2010-12-30 | John Mezzalingua Associates, Inc. | Fluid fitting |
DE102012105655A1 (de) * | 2012-06-28 | 2014-01-02 | Viega Gmbh & Co. Kg | Pressbacke und Verfahren zum Herstellen einer unlösbaren Rohrverbindung und System aus einer Pressbacke und einem Fitting |
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US11541581B2 (en) | 2016-09-02 | 2023-01-03 | Zurn Industries, Llc | Injection molded cold-expansion compression collar |
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DE19956000C1 (de) * | 1999-11-20 | 2001-01-25 | Ivt Installations Und Verbindu | Klemmverbinder |
EP1448927B1 (de) * | 2001-11-28 | 2005-08-17 | Friatec Aktiengesellschaft | Steckkupplung |
US7503595B2 (en) * | 2004-04-22 | 2009-03-17 | Lokring Technology, Llc | Fitting having low volume crevice |
US20060284415A1 (en) * | 2005-03-16 | 2006-12-21 | Mckay Albert A | Medical gas and vacuum system |
WO2007041840A1 (en) * | 2005-10-11 | 2007-04-19 | Lokring Technology Llc | Improved fitting with complementary fitting materials |
-
2004
- 2004-11-17 DE DE102004055537A patent/DE102004055537A1/de not_active Withdrawn
-
2005
- 2005-10-08 US US11/667,907 patent/US7654588B2/en not_active Expired - Fee Related
- 2005-10-08 WO PCT/EP2005/010864 patent/WO2006053609A1/de active IP Right Grant
- 2005-10-08 DK DK05802310T patent/DK1812743T3/da active
- 2005-10-08 EP EP05802310A patent/EP1812743B1/de not_active Not-in-force
- 2005-10-08 DE DE502005005357T patent/DE502005005357D1/de active Active
- 2005-10-08 PT PT05802310T patent/PT1812743E/pt unknown
- 2005-10-08 PL PL05802310T patent/PL1812743T3/pl unknown
- 2005-10-08 JP JP2007540512A patent/JP2008520912A/ja active Pending
- 2005-10-08 CN CNB2005800393387A patent/CN100513853C/zh not_active Expired - Fee Related
- 2005-10-08 AT AT05802310T patent/ATE408086T1/de active
- 2005-10-08 SI SI200530501T patent/SI1812743T1/sl unknown
- 2005-10-08 BR BRPI0517726-0A patent/BRPI0517726A/pt not_active IP Right Cessation
- 2005-10-08 ES ES05802310T patent/ES2317320T3/es active Active
-
2008
- 2008-03-13 HK HK08102912.3A patent/HK1113602A1/xx not_active IP Right Cessation
- 2008-12-10 CY CY20081101441T patent/CY1110420T1/el unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102506247A (zh) * | 2011-10-25 | 2012-06-20 | 中国航空综合技术研究所 | 一种轴向冷挤压式管路连接装置 |
CN107532759A (zh) * | 2016-04-14 | 2018-01-02 | (株)韩亚科技 | 密闭型套管 |
Also Published As
Publication number | Publication date |
---|---|
EP1812743B1 (de) | 2008-09-10 |
SI1812743T1 (sl) | 2009-04-30 |
DE102004055537A1 (de) | 2006-05-24 |
ES2317320T3 (es) | 2009-04-16 |
DK1812743T3 (da) | 2009-02-02 |
EP1812743A1 (de) | 2007-08-01 |
DE502005005357D1 (de) | 2008-10-23 |
CY1110420T1 (el) | 2015-04-29 |
ATE408086T1 (de) | 2008-09-15 |
PL1812743T3 (pl) | 2009-04-30 |
CN100513853C (zh) | 2009-07-15 |
PT1812743E (pt) | 2008-12-18 |
BRPI0517726A (pt) | 2008-10-21 |
HK1113602A1 (en) | 2008-10-10 |
WO2006053609A1 (de) | 2006-05-26 |
US7654588B2 (en) | 2010-02-02 |
JP2008520912A (ja) | 2008-06-19 |
US20080122223A1 (en) | 2008-05-29 |
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