WO2001025671A1 - Raccord de tuyaux mecanique, segmente, et amovible - Google Patents

Raccord de tuyaux mecanique, segmente, et amovible

Info

Publication number
WO2001025671A1
WO2001025671A1 PCT/US2000/027215 US0027215W WO0125671A1 WO 2001025671 A1 WO2001025671 A1 WO 2001025671A1 US 0027215 W US0027215 W US 0027215W WO 0125671 A1 WO0125671 A1 WO 0125671A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamp
hose
segment
clamp segment
insert
Prior art date
Application number
PCT/US2000/027215
Other languages
English (en)
Inventor
Robert A. Gleim
Original Assignee
Total Containment, Inc.
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 Total Containment, Inc. filed Critical Total Containment, Inc.
Priority to AU78494/00A priority Critical patent/AU7849400A/en
Publication of WO2001025671A1 publication Critical patent/WO2001025671A1/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
    • 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
    • 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
    • F16L33/02—Hose-clips
    • F16L33/04—Hose-clips tightened by tangentially-arranged threaded pin and nut
    • 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

Definitions

  • the known couplings fall into one of two categories: (1) swaged or (2) mechanically fastened with an elastomeric seal. Swaging a coupling onto a pipe end requires a hydraulic tool to either expand or compress a metal collar, thereby pinching the pipe material into intimate contact with the coupling. This typically provides an excellent permanent seal that doesn't require any maintenance.
  • the tools required to perform the swaging operation must generate very high pressures, and are typically expensive, large and cumbersome. Additionally, these tools do not generally lend themselves to working within confined spaces, such as within an underground sump. Additionally, once the coupling is installed, it cannot be reused.
  • couplings which are mechanically fastened with an elastomeric seal typically require only modest pressure to assure a seal, and can be installed and removed with "common" low cost tools such as wrenches, pliers, etc. This allows the coupling to be easily installed within confined spaces.
  • couplings of this type have not proven to be extremely reliable since the seal can degrade from contact with fuels and other corrosive chemicals being carried by the piping system. Therefore, the seals must generally be replaced on a regular maintenance schedule causing down time for the piping system and a recurring expense each time the seal is replaced. Additionally, due to the adjustability of most clamping arrangements, the components may be over-tightened or under- tightened, which can result in premature failure of the connection.
  • the present invention provides a hose construction including a tubular hose having an inner surface and an outer surface.
  • the inner surface of the hose includes a plurality of corrugations.
  • a coupling is secured to at least one end of the tubular hose.
  • the coupling includes an insert that is located in the one end of the tubular hose.
  • the insert has an outer peripheral surface with at least two spaced apart annular protrusions.
  • a segmented clamp having at least first and second clamp segments is used to connect the coupling to the hose.
  • Fig. 1 A is an elevational view, shown half in cross-section, of a coupling with an insert used in conjunction with a hose construction in accordance with a first preferred embodiment of the present invention
  • Fig. IB is a top view of the coupling of Fig. 1 A taken along line IB - IB in Fig. 1A;
  • Fig. 2 A is an elevation view of a segmented clamp used with the coupling in Fig. 1 A to form the first embodiment of the hose construction of the present invention, shown in an undamped position;
  • Fig. 2B is an elevation view similar to Fig. 2A showing the segmented clamp in the closed, clamped position;
  • Fig. 3 A is a side elevational view of a clamp segment used in the segmented clamp of Fig. 2A;
  • Fig. 3B is a top plan view of the clamp segment of Fig. 3 A;
  • Fig. 3C is a bottom plan view of the clamp segment of Fig. 3 A;
  • Fig. 4 is a cross-sectional half view of the hose construction in accordance with the first embodiment of the invention with the coupling assembled with the tubular hose;
  • Fig. 5 is an elevational view, partially in cross-section, showing the segmented clamp being installed over the pipe end in accordance with a first preferred embodiment of the invention;
  • Fig. 6A is an elevation view of a second embodiment of a segmented clamp for use with a hose construction in accordance with the a second embodiment of the present invention, shown in the open, uncompressed position;
  • Fig. 7 A is an elevational view, shown half in cross-section, of a coupling with an insert used in conjunction with a hose construction in accordance with a third preferred embodiment of the present invention
  • Fig. 7B is a top view of the coupling of Fig. 7 A taken along line 7B - 7B in Fig. 7 A;
  • Fig. 8B is a top view taken along line 8B-8B in Fig. 8A;
  • Fig. 9 is a half cross-sectional view through the third embodiment of the hose construction in accordance with the present invention.
  • Fig. 10A is an elevational view of a clamp segment of the segmented clamp used in the third embodiment of the present invention.
  • Fig. 1 OB is a view taken along line 10B-10B in Fig. 10A
  • Fig. 10C is a view taken along line 10C- 10C in Fig. 10A;
  • Fig. 11C is a left side elevational view of the clamping tool of Fig. 11A.
  • Fig. 1 ID is a bottom view of the clamping tool of Fig. 11A.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Certain terminology is used in the following description for convenience only and is not limiting.
  • the words “right,” “left,” “lower,” and “upper” designate directions in the drawings to which reference is made.
  • the words “inwardly” and “outwardly” refer to directions towards and away from, respectively, the geometric center of the removable segmented pipe coupling in accordance with the present invention, and designated parts thereof.
  • the terminology includes the words noted above as well as derivatives thereof and words of similar import.
  • the tubular hose 60 includes an inner surface and an outer surface.
  • the inner surface includes a plurality of corrugations 62, as shown in Fig. 4.
  • the pipe coupling is secured to at least one end of the hose 60, and comprises a coupling body 11 having an insert 12, shown in detail in Figs. 1A -ID.
  • the insert 12 is generally cylindrical and includes an outer peripheral sealing surface 16 which is adapted to be sealed to the inner surface of the pipe 60.
  • the outer peripheral surface 16 of the insert 12 preferably includes at least two spaced apart annular protrusions 18.
  • each protrusion 18 has a plurality of grooves 20 located on an outer surface thereof. These are effective in creating a tight seal between the inner surface of the tubular hose 60 and the outer surface of the insert 12 by creating multiple contact areas, depending upon the material of the hose. However, the grooves 20 can be omitted if desired.
  • the second end of the insert 12 includes a pipe joint connection feature 22.
  • the pipe joint connection feature 22 can be of any type, such as a screw connection, a flange, welded or a bell & spigot type joint. The particular pipe joint connection feature 22 utilized is not considered to be part of the present invention, and can be any desired type of connection.
  • a first embodiment of a segmented clamp 14 having at least first and second clamp segments 24 is positioned over an outer surface of the tubular hose 60 in a position over the insert 12.
  • the segment clamp 14 is shown in detail in Figs. 2A , 2B and 5.
  • the segmented clamp 14 may be formed from any number of clamp segments 24, shown in detail in Figs. 3A-3E. Those skilled in the art will recognize that the arc length of each segment would change, depending upon the total number of segments to be utilized. For example, if three clamp segments are used to form the segmented clamp 14, each segment 24 has an arc length of approximately 120°.
  • the segments 24 have an inside radius R which is preferably less than the outside diameter of the pipe 60.
  • each segment has a single lug 26 with a hole 28 defined therethrough.
  • the second end of each segment 24 has two lugs 30 located in complementary positions to the single lug 26, with aligned holes 32 defined therethrough such that the lug 26 on the first end of one segment 24 can be inserted into the space between the lugs 30 on the second end of an adjacent segment 24, with the holes 28, 32 being aligned such that a pin or fastener can be inserted therethrough.
  • This fixed locking position provides for an optimum seal without over-clamping or under-clamping of the hose 60.
  • the grooved ribs 18 provide for improved sealing, and the relief areas 38 (shown in Fig. 3C) in the clamp segments 24 lock the clamp 14 in position on the tubular hose 60.
  • the inner surfaces of the segments 24 form a generally circular opening having a diameter which is less than the outside diameter of the tubular hose 60, such that upon installation, the tubular hose 60 is radially compressed. It will be recognized by those skilled in the art from the present invention that the number of segments 24 can be varied, as desired.
  • Additional segments 24 may also be connected between the first and second clamp segments 24, depending upon the number of segments being utilized, preferably also using pivotable pin connections.
  • a C-clamp tool 70 is then positioned in the clamping recesses 34 on each side of the remaining segment interface to be closed.
  • the clamp segments 24 are then drawn together using pressure from the C-clamp tool 70 compressing the pipe 60 onto the insert 12.
  • a second embodiment of a hose construction utilizing a second type of segmented clamp 114 is shown.
  • the second embodiment of the hose construction is similar to the first embodiment 10 and utilizes the same type of coupling body 11 with an insert 12, with the only change being in the segmented clamp.
  • the size of the coupling body 11 may be varied depending upon the type of hose used in the hose construction. Accordingly, only the segmented clamp 114 will be described in detail.
  • first and second clamp segments 124, 125 are provided with radially extending lugs 126, 127.
  • the remaining clamp segments 24' are similar to the clamp segments 24 described above and are pivotably connected between the first and second clamp segments 124, 125.
  • the arc length of each clamp segment is changed, based on the total number of segments being utilized. For five clamp segments 124, 125, 24', as shown in Figs.6A and 6B, each segment preferably has an arc length of about 72°.
  • a threaded fastener 135 extends through openings defined in the lugs 126, 127 to allow the segments 124, 125 to be drawn together to close the segmented clamp 110.
  • a third embodiment of a hose construction 210 in accordance with the present invention is shown.
  • the hose construction 210 is similar to the hose construction 10 in accordance with the first embodiment of the invention, and similar elements have been identified with similar reference numbers for the sake of clarity,
  • the clamp segment 224 of the third embodiment is similar to the clamp segment 24 of the first embodiment.
  • each segment 224 has a single lug 226 with a hole 228 defined therethrough.
  • the second end of each segment 224 has two lugs 230 located in complementary positions to the single lug 226, with aligned holes 232 defined therethrough such that the lug 226 on the first end of one segment 224 can be inserted into the space between the lugs 230 on the second end of an adjacent segment 224, with the holes 228, 232 being aligned such that a pin or fastener 236 can be inserted therethrough.
  • locking tabs 225 are located on the clamp segments 224.
  • the locking tabs 225 are complementary to the annular groove 215 on the coupling body 211, such that the locking tabs 225 are received in the annular groove 215 when the segmented clamp 214 is clamped over the end of the hose 260 over the insert 212, as shown in Figs. 8B and 9. This positively locks the segmented clamp 214 in position.
  • the number of locking tabs 225 utilized may be varied, depending upon the particular application.
  • annular protrusions 227 are located on the inner surface of the clamp segments 224 for increased clamping strength to maintain the hose 260 in position on the insert 211 and to enhance the sealing of the inner surface of the hose 260 to the outer surface of the insert 212 as the hose is compressed radially inwardly during the installation process.
  • the hose construction 210 in accordance with the third embodiment of the invention is assembled in generally the same manner as the hose construction 10 in accordance with the first embodiment of the invention. However, only two segments are connected together. It is advantageous if neither pin 236 is installed as the segments 224 are positioned over the hose 260 in the area of the insert 212. A first pin 236 is then installed.
  • the first end of the first clamp segment 224 is then drawn toward the second end of the second clamp segment 224 by a clamping device 270.
  • the second pin 236 can then be installed.
  • the two pins 236 are connected together by a lanyard 237, and the pins further include a locking feature such that they will not easily back out of the holes.
  • the pins 236 can also be safety wired into position to prevent accidental removal.
  • the clamping device 270 is preferably very small and hence portable, and is also relatively inexpensive to manufacture.
  • the clamping device 270 includes two opposing jaws 271, 212 that are maintained in alignment with one another via four alignment pins 274.
  • a threaded bolt 273 is used to draw the two opposing jaws 271 , 272 together in a simple manner using a hand tool, such as a wrench.
  • each segment 224 would be utilized, the arc length of each segment would be adjusted accordingly, and additional segments could be installed between the first and second segments 224.
  • the present hose construction provides several advantages over the prior known constructions, including the ability for the coupling to be installed on the hose end in the field utilizing simple, relatively common hand tools. Additionally, the coupling cannot be over-tightened or under-tightened, insuring a proper seal with each installation.
  • the relatively small size of the coupling body and segmented clamp, as well as the small installation tool allow for installation within small or confined spaces which is often desirable when working with underground piping. Additionally, while the seal created is permanent in nature and does not need maintenance, it is also possible to remove and reuse the coupling at a future date.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'invention concerne une construction de tuyau, comprenant un tuyau tubulaire (60) pourvu d'un raccord. Ledit raccord (60) comprend une pièce rapportée (12) placée dans l'une des extrémités du tuyau tubulaire. Un collier de serrage (14) segmenté possédant au moins un premier et un second segments (24) de collier de serrage est utilisé pour connecter le raccord et le tuyau. Chacun des premier et un second segments de collier de serrage possède une première et une seconde extrémités, la seconde extrémité du premier segment de collier de serrage étant reliée pivotante à la première extrémité du second segment de collier de serrage, et la seconde extrémité du second segment de collier de serrage étant configurée de façon être connectée à la première extrémité du premier segment de collier de serrage. Les segments de collier de serrage sont placés sur la surface extérieure du tuyau tubulaire placé par-dessus la pièce rapportée. La première extrémité du premier segment de collier de serrage et la seconde extrémité du second segment de collier de serrage comprennent des emplacements conçus pour recevoir un collier de serrage, de sorte que la première extrémité du premier segment de collier de serrage peut être tirée vers une position de verrouillage fixe de façon à coopérer avec la seconde extrémité du second segment de collier de serrage, la surface intérieure du tuyau étant scellée à la surface circulaire extérieure de la pièce rapportée.
PCT/US2000/027215 1999-10-04 2000-10-03 Raccord de tuyaux mecanique, segmente, et amovible WO2001025671A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU78494/00A AU7849400A (en) 1999-10-04 2000-10-03 Removable segmented mechanical coupling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15748799P 1999-10-04 1999-10-04
US60/157,487 1999-10-04
US67221000A 2000-09-28 2000-09-28
US09/672,210 2000-09-28

Publications (1)

Publication Number Publication Date
WO2001025671A1 true WO2001025671A1 (fr) 2001-04-12

Family

ID=26854180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/027215 WO2001025671A1 (fr) 1999-10-04 2000-10-03 Raccord de tuyaux mecanique, segmente, et amovible

Country Status (2)

Country Link
AU (1) AU7849400A (fr)
WO (1) WO2001025671A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980781A1 (fr) * 2007-04-13 2008-10-15 Bucchi S.r.l. Raccord pour des flexibles ondulés en spirales
FR3008470A1 (fr) * 2013-07-15 2015-01-16 Unistar Europ Module de raccordement de tuyaux
WO2020183143A1 (fr) * 2019-03-10 2020-09-17 McAlpine & Co. Limited Raccord, ensemble et procédé de plomberie
RU2807856C2 (ru) * 2019-03-10 2023-11-21 Макалпайн Энд Ко Лимитед Сантехнический соединитель, узел и способ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1505255A (en) * 1921-04-30 1924-08-19 Egbert H Gold Hose clamp
US4568115A (en) * 1983-04-20 1986-02-04 Ladish Co. Multi-piece pipe clamp
US4659120A (en) * 1985-03-28 1987-04-21 Karl Weinhold Tube coupling
US5865476A (en) * 1997-01-15 1999-02-02 Rcf Seals & Couplings, Inc. Locking mechanism for a coupling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1505255A (en) * 1921-04-30 1924-08-19 Egbert H Gold Hose clamp
US4568115A (en) * 1983-04-20 1986-02-04 Ladish Co. Multi-piece pipe clamp
US4659120A (en) * 1985-03-28 1987-04-21 Karl Weinhold Tube coupling
US5865476A (en) * 1997-01-15 1999-02-02 Rcf Seals & Couplings, Inc. Locking mechanism for a coupling

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980781A1 (fr) * 2007-04-13 2008-10-15 Bucchi S.r.l. Raccord pour des flexibles ondulés en spirales
FR3008470A1 (fr) * 2013-07-15 2015-01-16 Unistar Europ Module de raccordement de tuyaux
EP2827037A1 (fr) * 2013-07-15 2015-01-21 Unistar Europe Module de raccordement de tuyaux
WO2020183143A1 (fr) * 2019-03-10 2020-09-17 McAlpine & Co. Limited Raccord, ensemble et procédé de plomberie
RU2807856C2 (ru) * 2019-03-10 2023-11-21 Макалпайн Энд Ко Лимитед Сантехнический соединитель, узел и способ

Also Published As

Publication number Publication date
AU7849400A (en) 2001-05-10

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