GB2396061A - Shielded conduit connector - Google Patents
Shielded conduit connector Download PDFInfo
- Publication number
- GB2396061A GB2396061A GB0324882A GB0324882A GB2396061A GB 2396061 A GB2396061 A GB 2396061A GB 0324882 A GB0324882 A GB 0324882A GB 0324882 A GB0324882 A GB 0324882A GB 2396061 A GB2396061 A GB 2396061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- fastening part
- shielding
- screwed
- abutting face
- 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.)
- Granted
Links
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
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0468—Corrugated
-
- 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
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0036—Joints for corrugated pipes
-
- 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
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0691—Fixing tubing to casing by auxiliary means co-operating with indentations of the tubing, e.g. with tubing-convolutions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
A device for fastening corrugated conduits 3 provided with external shielding 2. The device comprises a metallic housing 5, comprising at least one inner conical abutting face 4, for housing the corrugated conduit 3; a fastening part 7 which comprises an aperture 6 for the introduction of the corrugated conduit 3 and which is to be screwed to the housing 5; and at least one sliding sleeve 8 which, when the housing 5 is frictionally screwed to the fastening part 7 between the shielding 2 and the fastening part 7, produces mechanical contact, runs up against the inner conical abutting face 4 by means of an abutting face 8a and engages into a wave trough of the corrugated conduit 3 by means of a radial projection 8b. At least a first seal 11 produces fluid-tight contact by mechanical deformation, is disposed between the fastening part 7 and a fluid-tight casing 1 applied over the outer shielding 2 when the housing (5) is frictionally screwed to the fastening part 7. The shielding 2 may be clamped between the first seal 11 and the fastening part 7.
Description
239606 1
A device for fastening corrugated pipes provided with external shielding The invention relates to a device for fastening corrugated 5 pipes provided with external shielding (i.e. shielding encircling corrugated pipes).
A device for fastening electric lines, which comprise shielding for electromagnetic compatibility (EMC), is known 10 from DE 197 15 070 Al). The device comprises a housing member and a contact switching device, the contact switching device being disposed inside the housing member and it being possible to produce an electrical connection between the shielding and the housing member by the contact 15 switching device. The shielding is fixed, in particular jammed, in a positive and/or non-positive manner between the contact switching device and the housing member.
DE 196 11 717 Al discloses a connection element for 20 shielded conductors and cables, where electric conductors are surrounded by an electrically conductive sheath, shielded against electromagnetic disturbances and form a cable. The cable is introduced into the connection element, the electrically conductive sheath is connected to the 25 connection element and the connection element is provided with a passage for the cable and is connected via a core part having a flange connected to a housing. The core part is made from electrically conductive material, the electrically conductive material being passed through the 30 passage of the connection element and of the entire core part. A collar is disposed around the passage at the inner
end of the core part directed into the interior of the housing, it being possible to shift the end of the electrically conductive sheath via this collar. A ring nut is screwed onto the inner end of the core part and at this 5 ring nut opposite the collar a clamping face for the electrically conductive sheath is constructed. A threaded connection is also provided at the outer end of the core part. A retaining element made from synthetic material for a cable or a cable protection tube is connected via this 10 threaded connection to the core part.
DE 199 61 423 Al discloses a device for fastening corrugated pipes provided with external shielding, having a metallic housing comprising at least one inner conical 15 abutting face for housing the corrugated pipe, a fastening part which comprises an aperture for the introduction of a
corrugated pipe and is to be screwed to the housing, at least one sliding sleeve which, when the housing is frictionally screwed with the fastening part between the 20 shielding and the fastening part, produces mechanical contact, runs up against the inner conical abutting face by means of a further abutting face and engages in a wave trough of the corrugated pipe by means of a radial projection, and at least one seal which produces a fluid 25 tight contact by mechanical deformation between the housing and the corrugated pipe when the housing is frictionally screwed to the fastening part. A disadvantage of DE 199 61 423 Al is the bare, unprotected shielding mesh, which also becomes soiled very easily and is difficult to clean.
A further disadvantage of these devices is the complicated mechanical design and the relatively complicated mechanical and electrical connection of pipes and shielding associated with the devices.
From the foregoing, the problem arises of removing, at least to some extent, the above-mentioned disadvantages with the assistance of new devices for fastening corrugated pipes provided with external shielding. The resultant 10 problem is in particular the provision of the above-
mentioned devices which provide a relatively simple structure and simultaneously a simple type of mechanical and electrical connection of hoses and shielding with the device. This problem is solved in accordance with the invention by a device according to Claim 1.
The device according to the invention for fastening 20 corrugated pipes provided with external shielding comprises a metallic housing, comprising at least one internal conical abutting face, for housing the corrugated pipe and also a fastening part which comprises an aperture for the introduction of a corrugated pipe and is to be screwed to
25 the housing. Furthermore, the device comprises at least one sliding sleeve which, when the housing is frictionally screwed to the fastening part between the shielding and the fastening part, produces mechanical contact in that it runs up against the inner conical abutting face by means of a 30 further abutting face and engages in a wave trough of the corrugated pipe by means of a radial projection.
: Apart from the features described above, it is essential to the invention that at least a first seal is provided, which produces fluidtight contact by mechanical deformation 5 between the fastening part and a fluid-tight casing applied over the external shielding when the housing is frictionally screwed to the fastening part, and it can be configured in particular in the form of an O ring or bulb sealing ring.
However, with this relatively simple embodiment from the constructional point of view, a reliable, liquid-repellent sealing of the corrugated pipe and of the external shielding is provided by screwing the fastening part 15 frictionally onto the housing.
It is advantageous if the device comprises at least a second seal which produces fluid-tight contact by mechanical deformation between the housing and the 20 corrugated pipe when the housing is frictionally screwed to the fastening part so as to make a seal redundant.
Furthermore, it is advantageous if the fastening element and/or the sliding sleeve is made from metal, since in this 25 manner a simple and secure mechanical and electrical connection is achieved between the metallic housing of the device and the shielding - which in this case is metallic -
by frictionally screwing the housing to the fastening part, for example a screw nut. The electrical connection is 30 provided by three possible methods:
1. Shielding (metallic) - fastening element (metallic; sliding sleeve nonmetallic) - housing (metallic); 2. Shielding (metallic) - sliding sleeve (metallic; 5 fastening element non-metallic) - housing (metallic) or 3. shielding (metallic) - fastening element and sliding sleeve (both metallic) - housing (metallic). Furthermore, it is advantageous if, in the screwed state between the first seal and an abutting face of the fastening part, the shielding is fixed in such a manner that the shielding touches an inner shoulder of the 15 fastening part, in particular when the shielding comprises a bead in the region of the inner shoulder, since safe contacting is guaranteed in this manner. If the shielding is made from a metallic yarn mesh/braided fabric, this advantageously comprises spliced-apart threads in the 20 region of the inner shoulder to provide safe contacting.
The shielding may be made from a copper, steel or special steel mesh, but also from non-metallic materials.
25 The device according to the invention can be made from different materials and material compositions, for example of polyethylene, polyamide etc., with the housing as a rule being metallic or at least having metallic regions for the electrical connection with corresponding metallic 30 shielding, for example metal-coated plastic portions.
Furthermore, the device may be constructed in different
forms, in particular with respect to the housing, for example in the form of elbows, straight parts, with or without flanges etc., in order to comply with the specific assembly demands.
An exemplified embodiment of the invention is explained below with reference to a drawing.
In the drawing: Figure 1 shows a cross section of an embodiment of the device according to the invention.
The device for fastening corrugated pipes 3 provided with 15 external shielding 2 comprises the following features: A metallic housing 5, comprising at least one inner conical abutting face 4, for housing the corrugated pipe 3, a fastening part 7 which comprises an aperture 6 for the 20 introduction of the corrugated pipe 3 and is to be screwed
to the housing 5, a sliding sleeve 8 which produces mechanical contact between the shielding 2 and the fastening part 7 when the housing 5 is frictionally screwed to the fastening part 7, 25 in that it runs against the inner conical abutting face 4 by means of a further abutting face 8a and engages in a wave trough of the corrugated pipe 3 by means of a radial projection 8b, and a seal 11 which produces fluid-tight contact by 30 mechanical deformation between fastening part 7 and a fluid-tight casing 1 applied over the outer shielding when
the housing 5 is frictionally screwed to the fastening part 7. Furthermore, the device comprises a second seal 9, which 5 produces fluidtight contact by mechanical deformation between housing 5 and corrugated pipe 3 when the housing 5 is frictionally screwed to the fastening part 7, with the shielding 2 being fixed in the screwed state between the first seal 11 and an abutting face 8c of the fastening part 10 7 in such a manner that the shielding 2 touches an inner shoulder 7a of the fastening part 7.
Upon frictional screwing, an inner shoulder 7b runs against an abutting face 8c of the sliding sleeve 8 and squeezes the seal 11 in such a manner it this seals the fluid-tight casing 1 and also the outer shielding 2 in fluid-tight manner, whereby, furthermore, mechanical contact with the fastening part 7 is produced by the inner shoulder 7a running up against a bead 2a of the outer shielding 2.
At the side opposite the aperture 6, the housing 5 comprises a projection 10 provided with an external thread for fastening to machines, for example.
Claims (7)
- r l Patent Cla s 1. A device for fastening corrugated pipes (3) provided 5with external shielding (2), having: a metallic housing (5), comprising at least one 10 internal conical abutting face (4), for housing the corrugated pipe (3); a fastening part (7) which comprises an aperture (6) for the introduction of the corrugated pipe (3) andis to be screwed to the housing (5); 15 - at least one sliding sleeve (8) which, when the housing (5) is frictionally screwed to the fastening part (7), produces a mechanical contact between the shielding (2) and the fastening part (7), runs up against the inner conical abutting face (4) by means 20 of an abutting face (8a) and engages by means of a radial projection (8b) into a wave trough of the corrugated pipe (3), wherein at least a first seal (11) which produces fluid 25 tight contact by mechanical deformation between the fastening part (7) and the fluid-tight casing (1), is applied over the outer shielding (2) when the housing (5) is screwed frictionally to the fastening part (7).30
- 2. A device according to Claim 1,having at least a second seal (9) which produces fluid tight contact by mechanical deformation between the housing (5) and corrugated pipe (3) when the housing (5) is frictionally screwed to the fastening part (7).
- 3. A device according to Claim 1 or Claim 2, wherein the fastening part (7) and/or the sliding sleeve (8) is metallic.10
- 4. A device according to one of Claims 1 to 3, wherein, in the screwed state, the shielding (2) is fixed between the first seal (11) and an abutting face (8c) of the fastening part (7) in such a manner that the shielding (2) touches an inner shoulder (7a) of the fastening part 15 (7).
- 5. A device according to Claim 4, wherein the shielding (2) comprises a bead (2a) in the region of the inner shoulder (7a).
- 6. A device according to Claim 4, wherein the shielding (2) comprises spliced-apart threads in the region of the inner shoulder (7a).25
- 7. A device substantially as herein described with reference to the accompanying drawing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253090A DE10253090B4 (en) | 2002-11-13 | 2002-11-13 | Device for fixing corrugated pipes provided with an outer shield |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0324882D0 GB0324882D0 (en) | 2003-11-26 |
GB2396061A true GB2396061A (en) | 2004-06-09 |
GB2396061B GB2396061B (en) | 2005-11-09 |
Family
ID=29594654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0324882A Expired - Fee Related GB2396061B (en) | 2002-11-13 | 2003-10-24 | Device for fastening corrugated pipes provided with an external shielding |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10253090B4 (en) |
GB (1) | GB2396061B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2015946A (en) * | 2015-12-11 | 2017-06-22 | K Z Meet- En Regelapparatuur B V | Connector assembly for a double tube arrangement. |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007038885A1 (en) * | 2005-10-03 | 2007-04-12 | Pma Ag | Connection and joint piece for well tubes |
EP3447866A1 (en) * | 2017-08-25 | 2019-02-27 | CMP Products Limited | Cable clamping apparatus |
WO2021102318A1 (en) | 2019-11-22 | 2021-05-27 | Trinity Bay Equipment Holdings, LLC | Reusable pipe fitting systems and methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1311796A (en) * | 1970-03-05 | 1973-03-28 | Hawke Cable Glands Ltd | Electric cable glands |
GB2258350A (en) * | 1991-07-20 | 1993-02-03 | Hawke Cable Glands Ltd | Electric cable barrier gland. |
GB2289578A (en) * | 1994-05-21 | 1995-11-22 | Hawke Cable Glands Ltd | Glands for terminating cables and pipes |
DE19961423A1 (en) * | 1999-12-17 | 2001-07-05 | Flexa Gmbh & Co Kg | Fixing coupling for corrugated pipe has metal housing, attachment part for screwing onto housing with pipe opening, sliding collar(s) for mechanical contact, liquid-tight seal(s) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2718505A1 (en) * | 1994-04-08 | 1995-10-13 | Sib | O-ring stuffing box. |
DE19611717B4 (en) * | 1996-03-25 | 2005-01-13 | Pma Ag | Connection element for shielded conductors and cables |
US5777269A (en) * | 1996-09-13 | 1998-07-07 | G & H Technology, Inc. | Termination for a shielded cable |
-
2002
- 2002-11-13 DE DE10253090A patent/DE10253090B4/en not_active Expired - Fee Related
-
2003
- 2003-10-24 GB GB0324882A patent/GB2396061B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1311796A (en) * | 1970-03-05 | 1973-03-28 | Hawke Cable Glands Ltd | Electric cable glands |
GB2258350A (en) * | 1991-07-20 | 1993-02-03 | Hawke Cable Glands Ltd | Electric cable barrier gland. |
GB2289578A (en) * | 1994-05-21 | 1995-11-22 | Hawke Cable Glands Ltd | Glands for terminating cables and pipes |
DE19961423A1 (en) * | 1999-12-17 | 2001-07-05 | Flexa Gmbh & Co Kg | Fixing coupling for corrugated pipe has metal housing, attachment part for screwing onto housing with pipe opening, sliding collar(s) for mechanical contact, liquid-tight seal(s) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2015946A (en) * | 2015-12-11 | 2017-06-22 | K Z Meet- En Regelapparatuur B V | Connector assembly for a double tube arrangement. |
Also Published As
Publication number | Publication date |
---|---|
DE10253090A1 (en) | 2004-05-27 |
GB0324882D0 (en) | 2003-11-26 |
DE10253090B4 (en) | 2005-08-25 |
GB2396061B (en) | 2005-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20201024 |