WO2016020685A1 - Gaine pour tubes multiples, procédé d'assemblage d'une unité composite, et unité composite - Google Patents

Gaine pour tubes multiples, procédé d'assemblage d'une unité composite, et unité composite Download PDF

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Publication number
WO2016020685A1
WO2016020685A1 PCT/GB2015/052273 GB2015052273W WO2016020685A1 WO 2016020685 A1 WO2016020685 A1 WO 2016020685A1 GB 2015052273 W GB2015052273 W GB 2015052273W WO 2016020685 A1 WO2016020685 A1 WO 2016020685A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheath
pipes
channel
pipe
wall
Prior art date
Application number
PCT/GB2015/052273
Other languages
English (en)
Inventor
Martin Dalton
Carl LOVE
Original Assignee
Surestop Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Surestop Limited filed Critical Surestop Limited
Priority to GB1700899.6A priority Critical patent/GB2545348A/en
Publication of WO2016020685A1 publication Critical patent/WO2016020685A1/fr

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
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • 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
    • F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
    • F16L3/237—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals for two pipes
    • 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
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
    • 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
    • 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
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
    • F16L3/13—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and engaging it by snap action

Definitions

  • the invention relates to a sheath for multiple pipes (or tubes, the terms 'pipe' and 'tube' being interchangeable in this document), the sheath acting to hold the pipes together, and also providing some protection for the pipes.
  • the invention also relates to a method of assembling a composite unit comprising a sheath and a plurality of pipes, and to a composite unit.
  • European patent 1 195 547 by the present Applicant describes a remote shut off valve in which a diaphragm valve is controlled by a pilot valve. It is a major advantage of that invention that the pilot valve can be separate from the diaphragm valve, and can therefore be conveniently located even if the diaphragm valve is substantially inaccessible.
  • the pipes and sheath are co-extruded.
  • Two preformed pipes are passed together through an extruding machine to add the sheath.
  • the pipes are fed from drums and if the force pulling a pipe from its drum is too great the pipe can deform into a necked portion which is weaker than required.
  • the inventors have sought an alternative sheath for multiple pipes which avoids or reduces the disadvantages of the known methods.
  • the inventors appreciate that whilst the invention has been designed for use with a remote shut off valve, it has applicability in other fields, for example with the pipes feeding drinks dispensers for example.
  • a sheath for multiple pipes having a longitudinal axis and having a first wall defining a first channel and a second wall defining a second channel, the channels being adapted to receive respective pipes, the first channel and the second channel being substantially aligned with the longitudinal axis, the first wall and the second wall being discontinuous in cross-section whereby the respective pipe can be inserted into the channel in a direction substantially perpendicular to the longitudinal axis.
  • the sheath therefore differs from the known sheaths in which the walls are continuous and the pipes are inserted in a direction parallel to the longitudinal axis.
  • the pipes and sheath are made from a flexible material so that they can be bent as required by the installer.
  • the pipes may be more flexible that the sheath. This results in a composite unit comprising the sheath and pipes in which the sheath limits the flexibility of the composite unit.
  • the sheath is more flexible than the pipes, notwithstanding that with such an arrangement bending of the composite unit through a sharper angle than the pipes can accommodate will result in a tendency of the pipes to be forced out of their channels.
  • the pipes and sheath have similar flexibility.
  • the sheath and pipes are of plastics material, and desirably the sheath is of a different material than the pipes.
  • the sheath is made of a resilient material.
  • the pipes are made of a resilient material.
  • the sheath has first and second openings through which a respective pipe may be inserted into the first or second channel.
  • the openings are aligned with the longitudinal axis of the sheath and run the full length of the sheath.
  • the openings have a cross-sectional dimension which is smaller than the outer dimension of the pipes, so that the pipes and/or sheath must be deformed slightly so that a pipe can pass through an opening.
  • the first and second walls are part-circular, having a diameter to match the diameter of the (circular) pipe.
  • the first and second walls are substantially circular, but have a slit or split along their length whereby the channels can be opened to permit the introduction of a pipe.
  • the sheath will substantially or completely cover the pipes in the assembled composite unit, and will protect the pipes from degradation caused by UV radiation for example.
  • edges of the openings can be rounded and/or chamfered whereby to encourage the opening to widen (and/or the pipe to deform) as the pipe is pressed through the opening.
  • the pipes are made from MDPE or LLDPE and have a diameter of approximately 4 mm and a wall thickness of approximately 0.75 mm.
  • the sheath is made from PVC and the thickness of the first and second wall where they surround the pipes is approximately 0.75 mm.
  • the ends of the sheath are fitted with end caps or the like to secure the pipes within their respective channels.
  • the end caps can be specially manufactured to fit over the ends of the pipes and sheath, or can be a length of adhesive tape wound around the sheath at (or adjacent to) its ends. Tape (or suitable specially manufactured bands) can also be used at intermediate locations along the length of the composite unit, as required or desired.
  • the invention has additional benefits. Firstly, if one pipe becomes damaged it is easy to remove and replace that pipe, and it is not necessary to replace the complete composite unit. Secondly, it is very easy to inspect the composite unit to check for and identify damage to a pipe or to the sheath.
  • channels can be provided if it is required to house more than two pipes, the invention not being limited to the number of channels required.
  • the channels can be arranged in a single row or in a triangular array.
  • the channels can be arranged in a single row or in a square array.
  • the channels are arranged in a single row as this is expected to utilise less material than a polygonal array.
  • the openings can face in opposing directions, or can face in the same direction, or can face in some intermediate relative directions.
  • a sheath having more than two channels if the channels are arranged in a single row the openings preferably face in the same direction; alternatively if the channels are arranged in a polygonal array it will be necessary that the openings face in different directions.
  • Fig.1 shows a perspective view of a composite unit comprising a sheath according to the present invention and two pipes,
  • Fig.2 shows a perspective view of the end of the sheath
  • Fig.3 shows a cross-sectional view through the sheath and one of the pipes.
  • the composite unit 10 comprises a sheath 12 and two pipes 14,16. It will be understood that alternative sheathes can be made suitable for three, four or more pipes, as required.
  • the composite unit 10 has a longitudinal axis L-L. Notwithstanding that the sheath 12 and pipes 14 are flexible, and can therefore be twisted, and also bent into one or more curves and/or loops, they are shown to be straight in Fig.1 . Clearly, if the sheath and pipes are bent, the longitudinal axis will be correspondingly bent.
  • the sheath 12 has two channels 20, 22 (as better seen in Figs. 2 and 3) which are substantially aligned with the longitudinal axis L-L. It is expected that the sheath 12 will be made of plastics material, by an extrusion process, in which case the channels 20, 22 will be precisely aligned with the longitudinal axis L-L.
  • the channels 20, 22 are defined by a respective first wall 28 and second wall 30 of the sheath 12.
  • the walls 28, 30 are discontinuous in cross-section, i.e. a respective opening 24, 26 is provided in each of the walls 28, 30, the openings 24, 26 being continuous along the length of the sheath 12.
  • the walls 28, 30 are both of circular cross-section, with an internal diameter di (in this embodiment 4 mm).
  • the sheath is therefore adapted to accommodate two pipes 14, 16 of circular cross-section with an outer diameter d2 (of 4 mm).
  • d2 of 4 mm.
  • the width w of the openings 24, 26 is smaller than the outer diameter d 2 of the pipes 14, 16. It is therefore necessary to deform the sheath 12 and/or the pipe 14, 16 as the pipe is pressed through the respective opening. Suitable flexible and resilient materials should therefore be used for making the pipes 14, 16 and the sheath 12.
  • the edges of the openings 24, 26 are rounded as shown in Fig.3 so as to facilitate pressing the pipes 14, 16 into the channels 20, 22.
  • the thickness of the walls 28, 30 where they surround the pipes and adjacent to the openings 24, 26 is similar to the wall thickness of the pipes 14, 16, but that is not necessarily the case. It is, however, desirable that the pipes 14, 16 be at least as flexible as the sheath 12 (and preferably more flexible).
  • the pipes 14, 16 can each be bent into a loop of a first minimum dimension without buckling or breaking, and the sheath 12 can be bent into a loop of a second minimum dimension without buckling or breaking, the first minimum dimension being smaller than (or at least no greater than) the second minimum dimension. If this were not the case, an installer who bends the sheath in use might inadvertently force one or both of the pipes out of its channel.
  • the pipes 14, 16 can be removed from their channels 20, 22 if desired, for example to allow the sheath 12 to be cut to a desired length, or for a pipe 14, 16 to be inspected for damage (or replaced). It is easiest to remove a pipe by commencing at the end of a pipe where this extends beyond the end of the sheath. However, the sheath and pipes are intended to be sufficiently flexible to permit the removal of a section of the pipe locally if desired. In order to prevent the inadvertent removal of a pipe from its channel it is desirable to fit an end cap 32 to the ends of the sheath, the ends caps serving to retain the pipes 14, 16 in their channels 20, 22.
  • the end caps 32 are preformed, substantially rigid, components designed to slide over the ends of the pipes 14, 16 and sheath 12, but can be replaced by a length of adhesive tape wound around the end of the sheath. Intermediate bands, or lengths of adhesive tape, can be used along the length of the composite unit 10 for additional security, as desired or required.
  • the pipes 14, 16 are exposed through the openings 24, 26. It may be desirable to avoid the pipes being exposed, in which case the openings can be reduced to or close to zero, i.e. the discontinuity in the walls of the channels can comprise a narrow slit or a split line, the slits or splits being openable to permit the insertion of a pipe.
  • the sheath can carry projections or rails allowing a user to pull open a slit or split to permit the insertion/removal of a pipe.
  • the assembly of a composite unit 10 can be largely automated. Specifically, it is not necessary that all of the pipe 14 (or 16) pass through an opening 20 (or 22) at substantially the same time, and a tool can be provided which presses the pipes into their channels progressively, the sheath and pipes being pulled through the tool to press the pipes locally into their channels as the tool passes along the sheath.
  • the pipes will be of circular cross-section, and that each pipe will be of an identical size and material to the other pipes. It will be understood that this is not necessary, however, and that the invention can be used with non-circular pipes (and ideally correspondingly non-circular walls), and with pipes of differing materials and/or dimensions. Also, the invention is not limited to applications requiring two pipes, and sheaths for any number of multiple pipes can be provided. For a sheath having three or more channels, the channels can be arranged in a single row, in two rows, or in a polygonal array, as desired.
  • the openings 24, 26 face in opposite directions and this results in a sheath which is symmetrical about a vertical line and about a horizontal line as viewed in Fig.3.
  • the openings could both face in the same direction, e.g. towards the top of the page in the orientation of Fig.3.
  • the openings could face in some intermediate relative directions.
  • the openings preferably face in the same direction if the channels are arranged in a single row; alternatively the openings necessarily face in different directions if the channels are arranged in two rows or a polygonal array.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

L'invention concerne une gaine pour tubes multiples, la gaine intervenant pour maintenir ensemble les tubes et réalisant également une protection pour les tubes. La gaine (12) possède un axe longitudinal (L-L), une première paroi (28) définissant un premier canal (20) et une deuxième paroi (30) définissant un deuxième canal (22). Les canaux sont configurés pour recevoir des tubes respectifs (14, 16) et sont sensiblement alignés avec l'axe longitudinal. La première paroi et la deuxième paroi sont discontinues en section transversale, moyennant quoi le tube correspondant peut être inséré dans le canal dans une direction transversale à l'axe longitudinal. L'invention concerne également un procédé d'assemblage d'une unité composite comprenant une gaine et une pluralité de tubes, et une unité composite assemblée.
PCT/GB2015/052273 2014-08-06 2015-08-05 Gaine pour tubes multiples, procédé d'assemblage d'une unité composite, et unité composite WO2016020685A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1700899.6A GB2545348A (en) 2014-08-06 2015-08-05 Sheath for multiple pipes, method of assembling a composite unit, and composite unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1413921.6A GB201413921D0 (en) 2014-08-06 2014-08-06 Sheath for multiple pipes or tubes
GB1413921.6 2014-08-06

Publications (1)

Publication Number Publication Date
WO2016020685A1 true WO2016020685A1 (fr) 2016-02-11

Family

ID=51587809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2015/052273 WO2016020685A1 (fr) 2014-08-06 2015-08-05 Gaine pour tubes multiples, procédé d'assemblage d'une unité composite, et unité composite

Country Status (2)

Country Link
GB (2) GB201413921D0 (fr)
WO (1) WO2016020685A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640884A (zh) * 2017-02-16 2017-05-10 珠海格力电器股份有限公司 工件固定装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT341605B (de) * 1975-06-24 1978-02-27 Dietzel Gmbh Klemme fur leitungen
DE8803178U1 (fr) * 1988-03-09 1988-04-21 Biernath, Siegfried, 5300 Bonn, De
DE29515916U1 (de) * 1995-10-07 1995-11-30 Festo Kg Mehrfachschlauch
EP1195547A2 (fr) 2000-10-04 2002-04-10 Sure GB Limited Soupape d'arrêt de commande à distance
DE20206542U1 (de) * 2002-04-24 2002-10-17 Penzkofer Ludwig Befestigungs- und Abdeckvorrichtung
US20050120652A1 (en) * 2002-01-22 2005-06-09 Fabien Cacciani Device for laying and fixing pipes for various circuits, domestic or industrial
WO2010000880A1 (fr) * 2008-06-30 2010-01-07 Relats, S.A. Gaine tubulaire multiple de protection

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT341605B (de) * 1975-06-24 1978-02-27 Dietzel Gmbh Klemme fur leitungen
DE8803178U1 (fr) * 1988-03-09 1988-04-21 Biernath, Siegfried, 5300 Bonn, De
DE29515916U1 (de) * 1995-10-07 1995-11-30 Festo Kg Mehrfachschlauch
EP1195547A2 (fr) 2000-10-04 2002-04-10 Sure GB Limited Soupape d'arrêt de commande à distance
US20050120652A1 (en) * 2002-01-22 2005-06-09 Fabien Cacciani Device for laying and fixing pipes for various circuits, domestic or industrial
DE20206542U1 (de) * 2002-04-24 2002-10-17 Penzkofer Ludwig Befestigungs- und Abdeckvorrichtung
WO2010000880A1 (fr) * 2008-06-30 2010-01-07 Relats, S.A. Gaine tubulaire multiple de protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106640884A (zh) * 2017-02-16 2017-05-10 珠海格力电器股份有限公司 工件固定装置

Also Published As

Publication number Publication date
GB201413921D0 (en) 2014-09-17
GB201700899D0 (en) 2017-03-08
GB2545348A (en) 2017-06-14

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