CN1832282A - Method of bending tube with large bending radius - Google Patents
Method of bending tube with large bending radius Download PDFInfo
- Publication number
- CN1832282A CN1832282A CNA2006100349037A CN200610034903A CN1832282A CN 1832282 A CN1832282 A CN 1832282A CN A2006100349037 A CNA2006100349037 A CN A2006100349037A CN 200610034903 A CN200610034903 A CN 200610034903A CN 1832282 A CN1832282 A CN 1832282A
- Authority
- CN
- China
- Prior art keywords
- floor
- wall
- pipe
- radius
- turning
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
Abstract
This invention relates to a method for realizing elbow pipes with large curvature radius when fitting pipes for electric construction including: first of all, a pipe turns in great curvature radius along the floor to a cross place of the floor and the wall, then turns in large curvature radius along the wall, in which, the two turns are tangent smoothly at the connecting point, the angle among the cross lines of the tangent, the floor and the wall should be small enough to meet the offset limit of the wall and floor to the pipe on the direction vertical to the floor and the wall and the tangent and the cross line should be parallel at the extreme situation when the two offset distances are zero.
Description
Technical field the present invention relates to a kind of method that realizes long radius elbow when the architectural electricity pipe arrangement.
Background technology is present, and in the national standard of architectural electricity pipe arrangement, the requirement of the minimum bending radius of dark pipe arrangement is not less than 6 times of pipe arrangement caliber, is preferably in more than 10 times.But, in actual engineering practice, when pipe turns between floor and body of wall, or when body of wall turns to another body of wall that intersects certain angle (commonly 90 degree) with it, because pipe (is comprising the crossbeam that is attached thereto with floor or body of wall, if present, down together) deflection of the direction of Surface Vertical is subjected to the restriction of floor or thickness of wall body, by existing bending method, realize that the bending radius of pipe arrangement caliber is very difficult more than 6 times even 10 times, in many cases, or even unpractical.
In Fig. 1, all the intersection with floor and metope is vertical before and after turning in the axis of pipe, and a and b are respectively pipes in the maximum deviation of allowing with the floor direction vertical with surface of wall.So, when pipe directly turned to body of wall B from floor A, the maximum radius of turn R that can realize was determined by following formula:
R=r+D/2;
r
2=(r-a)
2+ (r-b)
2(r 〉=a wherein, r 〉=b)
On the other hand, from the angle of distribution, bending radius is big more, passes that cable in the electric pipe arrangement is easy more to be laid and change, and the damage that cable is subjected to when laying is also littler.
Summary of the invention bending method provided by the present invention can solve because the thickness limits of floor and body of wall can't realize the problem of long radius elbow.Technical scheme of the present invention is: pipe is done earlier the turning of macrobending radius along floor (not exceeding the locus restriction of floor to pipe), does the turning of macrobending radius to floor and the body of wall intersection location again along body of wall (not exceeding the locus restriction of body of wall to pipe).Bend at the phase contact for these two and want level and smooth tangent connection.Angle between the intersection of tangent line and floor and metope should be enough little, with satisfy floor and body of wall to pipe perpendicular to the bias limitations on floor and the wall direction.All be that tangent line should be parallel with intersection under zero the extreme case at these two deviation distances.
The bend pipe bending radius that realizes by the present invention no longer be subjected to floor and body of wall to pipe in restriction perpendicular to the deviation distance on floor and the wall direction.
Above method is equally applicable to pipe between body of wall and the body of wall, between ground and the body of wall, and the turning of bright tubulature.
The present invention is further described below in conjunction with accompanying drawing for description of drawings
Fig. 1 is the bending method schematic diagram of present electric pipe arrangement
Fig. 2 is a kind of example schematic (stereogram) of embodiment of the present invention
Fig. 3 is the three-view diagram of above-mentioned example
Fig. 4 is the three-view diagram of another kind of embodiment
Among the figure, the A. floor, the B. body of wall, the D. caliber, the R. bending radius, a. pipe in floor with the maximum permissible deviation distance of floor vertical direction, the b. pipe in body of wall with the maximum permissible deviation distance of metope vertical direction.
The embodiment embodiments of the present invention have two kinds: 1, utilize mould to produce the long radius elbow of different size model in batches; 2, utilize angle pipe equipment (as the bend pipe spring) to be processed into long radius elbow or the part of pipe is processed into long radius elbow.
In Fig. 3 and Fig. 4 example, the radius of curvature R of whole Curved Continuous and maximum permissible deviation are irrelevant apart from a and b.When implementing, can freely select radius of curvature R as required.
Claims (3)
1. the bending method of a macrobending radius that when the architectural electricity pipe arrangement, uses, it is characterized in that: pipe is between floor and body of wall during break-in, do earlier the turning of macrobending radius, do the turning of macrobending radius to floor and the body of wall intersection location again along body of wall (not exceeding the locus restriction of body of wall) pipe along floor (not exceeding the locus restriction of floor) to pipe.
2. bending method according to claim 1, it is characterized in that: along the turning of the macrobending radius of floor with along the turning of the macrobending radius of body of wall in the level and smooth tangent connection of contact mutually, angle between the intersection between tangent line and floor and the metope should be enough little, with satisfy floor and body of wall to pipe perpendicular to the bias limitations on floor and the wall direction, all be that tangent line should be parallel with intersection under zero the extreme case at these two deviation distances.
3. bending method according to claim 1 is characterized in that: the bending radius of bend pipe is being limited perpendicular to the deviation distance on floor and the wall direction pipe by floor and body of wall no longer.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2006100349037A CN1832282A (en) | 2006-04-11 | 2006-04-11 | Method of bending tube with large bending radius |
CN 200610172628 CN101060236A (en) | 2006-04-11 | 2006-12-28 | Pipe direction-changing method and stereo bent pipe |
GB0820607.0A GB2450851B (en) | 2006-04-11 | 2007-04-11 | A method and conduit for passing cable through smoothly |
PCT/CN2007/001172 WO2007115508A1 (en) | 2006-04-11 | 2007-04-11 | A method and conduit for passing cable through smoothly |
CN200780005827XA CN101427433B (en) | 2006-04-11 | 2007-04-11 | A method and conduit for passing cable through smoothly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2006100349037A CN1832282A (en) | 2006-04-11 | 2006-04-11 | Method of bending tube with large bending radius |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1832282A true CN1832282A (en) | 2006-09-13 |
Family
ID=36994343
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2006100349037A Pending CN1832282A (en) | 2006-04-11 | 2006-04-11 | Method of bending tube with large bending radius |
CN200780005827XA Expired - Fee Related CN101427433B (en) | 2006-04-11 | 2007-04-11 | A method and conduit for passing cable through smoothly |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200780005827XA Expired - Fee Related CN101427433B (en) | 2006-04-11 | 2007-04-11 | A method and conduit for passing cable through smoothly |
Country Status (3)
Country | Link |
---|---|
CN (2) | CN1832282A (en) |
GB (1) | GB2450851B (en) |
WO (1) | WO2007115508A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2450851A (en) * | 2006-04-11 | 2009-01-07 | Jun Xu | A method and conduit for passing cable through smoothly |
CN102832489A (en) * | 2012-08-28 | 2012-12-19 | 中航光电科技股份有限公司 | Low-loss electrical connector |
CN105180832A (en) * | 2015-10-26 | 2015-12-23 | 国网福建省电力有限公司泉州供电公司 | Cable curvature measuring method |
CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
CN112072583A (en) * | 2013-12-31 | 2020-12-11 | 福州欧冠创新工业设计有限公司 | Hexagonal socket set |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103511755A (en) * | 2013-09-18 | 2014-01-15 | 梁招仙 | Bent cable bridge |
CN108206489B (en) * | 2017-12-12 | 2020-06-05 | 陈玉龍 | Wiring pipe threading method and threading device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8720103D0 (en) * | 1987-08-26 | 1987-09-30 | British Telecomm | Corner guide |
GB9308098D0 (en) * | 1993-04-20 | 1993-06-02 | Electrix Northern Ltd | Angled connector for conduits |
DE9418157U1 (en) * | 1994-11-01 | 1995-02-09 | Krone Ag | Cable protection element |
DE19714212A1 (en) * | 1997-04-07 | 1998-10-08 | Bosch Gmbh Robert | Procedure for laying a transport medium |
US6049040A (en) * | 1997-09-17 | 2000-04-11 | Biles; Scott Douglas | Universal cable guide |
CN2514465Y (en) * | 2001-11-12 | 2002-10-02 | 永锐坚电通股份有限公司 | Wire conduit with insulation liner |
CN2812362Y (en) * | 2005-01-17 | 2006-08-30 | 朱汝钦 | Bending pipe |
CN1832282A (en) * | 2006-04-11 | 2006-09-13 | 许军 | Method of bending tube with large bending radius |
-
2006
- 2006-04-11 CN CNA2006100349037A patent/CN1832282A/en active Pending
-
2007
- 2007-04-11 GB GB0820607.0A patent/GB2450851B/en not_active Expired - Fee Related
- 2007-04-11 CN CN200780005827XA patent/CN101427433B/en not_active Expired - Fee Related
- 2007-04-11 WO PCT/CN2007/001172 patent/WO2007115508A1/en active Application Filing
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2450851A (en) * | 2006-04-11 | 2009-01-07 | Jun Xu | A method and conduit for passing cable through smoothly |
GB2450851B (en) * | 2006-04-11 | 2012-04-11 | Jun Xu | A method and conduit for passing cable through smoothly |
CN102832489A (en) * | 2012-08-28 | 2012-12-19 | 中航光电科技股份有限公司 | Low-loss electrical connector |
CN112072583A (en) * | 2013-12-31 | 2020-12-11 | 福州欧冠创新工业设计有限公司 | Hexagonal socket set |
CN105180832A (en) * | 2015-10-26 | 2015-12-23 | 国网福建省电力有限公司泉州供电公司 | Cable curvature measuring method |
CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
Also Published As
Publication number | Publication date |
---|---|
CN101427433B (en) | 2011-08-17 |
GB0820607D0 (en) | 2008-12-17 |
GB2450851A (en) | 2009-01-07 |
GB2450851B (en) | 2012-04-11 |
WO2007115508A1 (en) | 2007-10-18 |
CN101427433A (en) | 2009-05-06 |
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PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |