GB2243027A - Conduit elbow - Google Patents
Conduit elbow Download PDFInfo
- Publication number
- GB2243027A GB2243027A GB9008101A GB9008101A GB2243027A GB 2243027 A GB2243027 A GB 2243027A GB 9008101 A GB9008101 A GB 9008101A GB 9008101 A GB9008101 A GB 9008101A GB 2243027 A GB2243027 A GB 2243027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elbow pipe
- cover portion
- body portion
- improved structure
- needle
- 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.)
- Withdrawn
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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/26—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
The elbow comprises a body 10, a cover 12, flanges 111, 121 and needle roller bearings 20. In an alternative embodiment (Fig 2) the cover (32) is less than semi-circular and the ends of the elbow are provided with threaded nuts (38, 39). <IMAGE>
Description
Title:An ImP PL ved Structure for An Elbow Pipe
The present invention relates to an im-proved structure of an elbow pipe which comprises an elbow pipe and a plurality of needle bearings. The conventional elbow pipe for wires is usually madw by molding into one piece.For laying aire purpose,the pipe is to be installes at variaus sections,and the wire is also to be laid at various corresponding sections;it is particularly thue when a cable or wire having a larger diameter is to be laid in a pipe;moreaver,the cable or wire has to be bent is advance in accordance with the curve of an elbaw pipe. In such case,the installation work of the albow pipe and cable takes more time and manpower.
In order to minimige the resistance of pulling a cable or wire through an elbow pipe, the outer surface of a cable or wire is coated with grease or wax before being pulled; as a result,the working personnel are subject to being stained with grease or wax. When a cable or wire is coated with a grease or wax for a long time,the surface of a cable or wire might be damaged as a result of chemical process. Moreover, the surface of a cable or wire might be damaged by a friction upon being pulled through the elbow pipe; in that case,the serviceable life of that cable or wire mighe be reduced.
The prime object of the present invention is to provide an improved structure for an elbow pipe,where by the time and manpower for pulling a cable or wire throught a pipe ling may be reduced,and the outer surface of a cable or wire may not be coated with grease or wax,and not be damaged during pulling;therefore,the serviceable life of the cable or wire can be lasted for a longer time.
Another object of the present invention is to provide an improved structure for an elbow pipe.of which the installation operation is simple and practical,and the manufacturing cost is lower.
According to the present invention, it mainly comprises an elbow pipe and a plurality of needle bearings. The elbow pipe includes a bady portion and a detashable cover portion;the external lower port of the elbow pipe has a flange, and the inside surface of that flange has a channel, of which both sides are pranided a plurality of opposite mounting recesses.
The needle bearing includes two needle sleeves, a plurality of needles, and a roller;the needle bearings are to be mounted across the opposite mounting recesses respectinely in a rolling manner.
A preferred embodiment of the present invention will now be described,by way of example only,with reference to the accompanying diagrammatic drawings in which: FIG.1 is an embadiment according to the present invention.
FIG.1-1 is a sectional view taken along line A-A in FIG. 1.
FIG.l-2 is an enlarged sectional view of FIG.1-1.
FIG.2 is auother embodiment according to the present invention.
FIG.2-1 is a sectional view taken along line B-B in FIG. 2.
FIG.2-2 is a side view of FIG.2.
Referring to FIG.l,the embodiment of the present invention mainly comprises an elbow pipe 10 and a needle bearing 20. The elbow pipe 10 further includes a body portion 11 and a cover portion 12 which can symmetrically be mounted on the bady portion 11 in a detacbable manner; in other words, the bady portion 11 and the cover portion 12 are two similar and apposite members, of which the battom portions are formed into two similar and opposite semi-flange portions 111 and 121; both semi-flange portions can form into a complete flange 13. The inner side of the complete flange 13 has a channel,which has a plarality of opposite mounting recesses 131. The outer surface of the bady portion 11 and the cover portion 12 is provided with a plurality of opposite lugs 14 having screw holes 141 respectively.By means of such lugs -14 and screws, the body portion 11 and the cover portion 12 can be assembled together.
The needle bearing 20 includes two needle sleeves 21,a plvrality of needles 22 and two rollers 23. The needle hearing 20 is mounted in the opposite mounting recesses 131 on the inner part of the complete flange 13;the needle hearing can prowide a rolling roller to facilitate a cable or the like to pass through the elbow pipe 10 smoothly without coating grease or wax,which would cause dirt and pollution.
The way of using the present invention is described as follows:
The elbow pipe is first installed in a suitable pasition designed,and is connected with a suitable pipe line,in which a picce of iron wire,or copper wire ,or plastic rope is inserted so as to connect with the cable or elcctric wire to be installed therein. The cable or rlectri wire can be pulbed through ,and the pipe line can be installed at one time instead of using the conventional method of installing the pipe and pulling the cable or electric at different sections and time,and coating grease on the cable or electric wire to be pulled;in other words, the present invention can save time and manpower in the installation of pipe line and cable or electric wire without causing the coble or electric wire to be damaged during pulling operation.In the conventional method of pulling a cable or electric wire through a pipe line, the cable or electric wire is susceptible to damage and to measure the length of such cable or electric wire before pulling through.
FIG.2 illustrates auother embadiment of the prcsent invention,of which the elbow pipe 30 comprises a bady portion 31 and a detachable cove portion 32. The bottom of the body portion 31 is formed into a flange 33, of which the internal surface has a channel; both sides of the channel are provided with a plarality of apposite mounting recesses 331; each pair of the opposite mounting recesses are installed with one needle bearing 40 that is the same as the aforesaid needle bearing. The connection between the body portion 31 and the cover portion 32 is done with a tenon 311 and a mortise 321; the external surfaces of both the body portion and the cover portion are furnished with two opposite and aligned lugs 312 and 322 with coincident holes to be fixed together with a screw. Both ends of the elbow pipe 30 are provided with threaded portions 36 and 37 respectively for attaching two nuts 38 and 39 respectively so as to increase the connection strength between the body portion 31 and the cover portion 32. Furthermore,the needle bearing 40 may also be replaced with rollers.
The operation of the present invention has more advantages than the previous application as fallows:
(1) A cable or wire is easy to be pulled through the present invention because of having a large connection part between the body portion and the cover portion.
(2) The bady portion and the cover portion are held together by means of screws in a detachable manner; therefore, it is deemed accurate and durable than using adhesives to glue the tenon and mortise parts.
(3) Particularly, both the body portion and the cover portion of the first embodiment according to the present invention can be cast with one set of mold so as to lower the manufacturing cost and to benefit the consumers.
Claims (5)
1. An improved structure for an elbow pipe comprising an elbow pipe and a plurality of needle bearings, in which said elbow pipe including a body portion and a symmetrical and detachable cover portion; and the lower outer part of said elbow pipe being formed into a flange, and the inner side of said flange being provided with a channel, of which both sides are furnished with a plurality of opposite mounting recesses;
Said needle bearing including a plurality of needle sleeves, needles, and rollers; and said needle hearings being mounted in said opposite mounting recesses repectively in a rolling manner.
2. An improved structure for an elbow pipe as claimed in claim 1, wherein the opposite parts between said body portion and said cover portion are provided with a plurality of opposite lugs with holes, and said lugs being spaced out regularly; and each pair of said opposite lugs being fixed together a screw.
3. An improved structure for an elbow pipe as claimed in claim 1, wherein both ends of said elbow pipe are furnished with threaded portions respectively, each of which is to be mounted with a nut so as to have said body portion and said cover portion fastened together firmly.
4. Am improved structure for an elbow pipe as claimed in claim 1, wherein the connection parts between said body portion and said cover portion are provided with opposites tenon and mortises respectively to be mated each other upon said body portion and said cover portion being assembled together.
5. An improved structure for an elbow pipe as claimed in claim 1, wherein said needle bearing can be replaced with rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9008101A GB2243027A (en) | 1990-04-10 | 1990-04-10 | Conduit elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9008101A GB2243027A (en) | 1990-04-10 | 1990-04-10 | Conduit elbow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9008101D0 GB9008101D0 (en) | 1990-06-06 |
| GB2243027A true GB2243027A (en) | 1991-10-16 |
Family
ID=10674198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9008101A Withdrawn GB2243027A (en) | 1990-04-10 | 1990-04-10 | Conduit elbow |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2243027A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0623775A1 (en) * | 1993-05-07 | 1994-11-09 | The Goodyear Tire & Rubber Company | Tubular guide and support system |
| WO1998032941A1 (en) * | 1997-01-24 | 1998-07-30 | Nokia Telecommunications Oy | Cable guide |
| GB2343794A (en) * | 1998-08-26 | 2000-05-17 | Mallatite Ltd | A device to prevent chafing of cables |
| EP1069663A1 (en) * | 1999-07-13 | 2001-01-17 | Interflex S.A. | Bend pipe of a protection pipes system for electric cables |
| CN102044852A (en) * | 2010-02-01 | 2011-05-04 | 何平 | Wire-protecting sleeve joint |
| USD737783S1 (en) | 2014-08-28 | 2015-09-01 | Bridgeport Fittings, Inc. | Inside corner pull elbow fitting |
| US9341292B2 (en) | 2014-08-28 | 2016-05-17 | Bridgeport Fittings, Inc. | Inside corner pull elbow fitting |
| CN107742857A (en) * | 2016-09-05 | 2018-02-27 | 姜红梅 | Wall electric wire spool automatic threading apparatus |
| CN110926001A (en) * | 2018-09-03 | 2020-03-27 | 青岛海尔空调器有限总公司 | Fixing piece of pipe group and air conditioner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4600176A (en) * | 1983-06-10 | 1986-07-15 | Kabel- und Gummiwerke, Aktiengesellschaft abgekurzt | Apparatus for producing a cable conduit system suitable for the drawing-in of cables |
-
1990
- 1990-04-10 GB GB9008101A patent/GB2243027A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4600176A (en) * | 1983-06-10 | 1986-07-15 | Kabel- und Gummiwerke, Aktiengesellschaft abgekurzt | Apparatus for producing a cable conduit system suitable for the drawing-in of cables |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0623775A1 (en) * | 1993-05-07 | 1994-11-09 | The Goodyear Tire & Rubber Company | Tubular guide and support system |
| US5503191A (en) * | 1993-05-07 | 1996-04-02 | The Goodyear Tire & Rubber Company | Tubular guide and support system |
| WO1998032941A1 (en) * | 1997-01-24 | 1998-07-30 | Nokia Telecommunications Oy | Cable guide |
| GB2343794A (en) * | 1998-08-26 | 2000-05-17 | Mallatite Ltd | A device to prevent chafing of cables |
| GB2343794B (en) * | 1998-08-26 | 2002-08-21 | Mallatite Ltd | A device to prevent chafing of cables |
| EP1069663A1 (en) * | 1999-07-13 | 2001-01-17 | Interflex S.A. | Bend pipe of a protection pipes system for electric cables |
| CN102044852A (en) * | 2010-02-01 | 2011-05-04 | 何平 | Wire-protecting sleeve joint |
| CN102044852B (en) * | 2010-02-01 | 2013-03-27 | 何平 | Wire-protecting sleeve joint |
| CN103107499A (en) * | 2010-02-01 | 2013-05-15 | 何平 | Cable-protecting sleeve joint |
| USD737783S1 (en) | 2014-08-28 | 2015-09-01 | Bridgeport Fittings, Inc. | Inside corner pull elbow fitting |
| US9341292B2 (en) | 2014-08-28 | 2016-05-17 | Bridgeport Fittings, Inc. | Inside corner pull elbow fitting |
| CN107742857A (en) * | 2016-09-05 | 2018-02-27 | 姜红梅 | Wall electric wire spool automatic threading apparatus |
| CN107834445A (en) * | 2016-09-05 | 2018-03-23 | 姜红梅 | Electric power wall spool threading apparatus |
| CN110926001A (en) * | 2018-09-03 | 2020-03-27 | 青岛海尔空调器有限总公司 | Fixing piece of pipe group and air conditioner |
| CN110926001B (en) * | 2018-09-03 | 2022-06-14 | 青岛海尔空调器有限总公司 | Fixing piece of pipe group and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9008101D0 (en) | 1990-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |