WO2000053964A1 - Pressure device for the securing or sealing of bodies - Google Patents
Pressure device for the securing or sealing of bodies Download PDFInfo
- Publication number
- WO2000053964A1 WO2000053964A1 PCT/NL2000/000162 NL0000162W WO0053964A1 WO 2000053964 A1 WO2000053964 A1 WO 2000053964A1 NL 0000162 W NL0000162 W NL 0000162W WO 0053964 A1 WO0053964 A1 WO 0053964A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- planes
- placement
- jacket
- rings
- Prior art date
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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
Definitions
- the invention relates to a pressure device for use in securing or sealing bodies against leakage paths, in particular round bodies such as tubes and tube couplings, as well as a method for it.
- the invention furthermore relates to a pressure body for use in such a device.
- Tube couplings including flange adapters between tubes of the same diameter, tubes of different diameters and of tubes with a valve box, etcetera, particularly when it regards gas or water mains in residential areas, need to be sealed reliably and permanently. It is usual to have the tubes or tube extend in a house and arrange an annular rubber sealing between the tube or tubes and the house. The sealing ring is then pressed in axial direction. It is known to use the inclined planes in order to realize a wedging action.
- provisions to resist tensile forces may also be included, for preventing a mutual, separating movement of the coupled elements.
- Said provisions to resist tensile forces might also be provided without sealing, where sealing is not needed.
- An example of this is shown in European patent application 0.1 68.069, in which a tensile ring is shown, having a wedge-shaped cross-section and which is interrupted in circumferential direction.
- a sealing ring having a wedge-shaped cross-section and provided with two series of radial notches lying off-set with respect to each other in both opposite axial ring planes. ln all embodiments a lot of force has to be exerted when arranging the sealing ring and/or tensile strength ring, on order to displace/deform or shift the material of said ring(s) to a functional position, in axial and possibly in circumferential direction.
- An object of the invention is to provide a pressure device for sealing, tensile security and/or coupling, which can be arranged quickly and with less force in a reliable and simple manner.
- a pressure device for engaging bodies for connecting, in particular round bodies, such as tubes comprising a pressure body having a -considered in cross-section- relatively rigid portion and having one or several pressure planes and comprising means for bringing and keeping the pressure planes pressed against the surface of the body to be connected, the pressure body having one or several counter pressure planes active counter to the pressure planes, having two side planes that are active in the opposite direction and - considered in cross-section- being rotatable or deformable while altering the distance between the side planes in order to move the pressure planes and the counter pressure planes with respect to each other in radial direction.
- both side planes/counter pressure planes as if of its own accord results in a reduction -in case of a sealing around a tube- or increase -in case of a (rare) placement in a tube- of the curve on which the pressure planes are situated.
- the invention provides a pressure device for engaging bodies for connecting, in particular round bodies, such as tubes, comprising a pressure body having a -considered in cross-section- relatively rigid portion and having one or several pressure planes and counter pressure planes that are active in the opposite direction to it, and comprising means for bringing and keeping the pressure planes pressed against the surface of the body to be connected, which means are active by increasing the radial distance between the pressure planes and the counter pressure planes.
- the invention provides a pressure device for engaging bodies for connecting, in particular round bodies such as tubes, comprising a pressure body having a -considered in cross-section- relatively rigid portion and having one or several pressure planes which in the initial position define a circumferential track having a size, and comprising means for bringing and keeping the pressure planes, in the active position, pressed against the surface of the body to be connected, which means are active by altering, in particular reducing, the size of the circumferential track by deformation of the cross-section of the pressure body.
- the side planes and the counter pressure planes are formed on a circumferential, continuous or composed body, so that the pressing forces can be generated over the circumference in a evenly divided manner.
- the pressure body has a substantially V- or U-shaped cross- section, the pressure planes preferably being situated on the outer side of the base of the V or U.
- the side planes and the counter pressure planes are then present on the arms of the V or U, in which way a favourable design has been obtained from a stability point of view.
- the pressure body can be formed as one continuous, circumferential unity, which may or may not have been provided with notches. Considering the high mould costs and the application possibilities depending on the size this, however, is particularly advantageous in case of large series.
- the pressure body is built up from a number of segments placed against each other in circumferential sense or segments that are held spaced apart. In this way the pressure body can be assembled at the desired circumferential size. Keeping an extensive stock of various ring diameters is no longer necessary.
- the pressure planes are situated at the radially innermost side of the pressure body. They are then arranged to engage on the outer surface of the -for instance- round body to be connected, such as a tube. Because of the radially inward forces and the relatively small pressure surface the conditions for sealing are more favourable.
- the pressure body is provided with more or less rigid portions which can be rotated with respect to each other.
- the deformation is concentrated in a certain area, as a result of which the controllability is increased and the well-functioning at several times of re-use is ensured.
- the pressure body preferably is provided with an internal hinge.
- said body can be designed at the smallest size possible and then be used in a large range of tube diameters. With larger diameters the recoil strength will accordingly be larger.
- the pressure body can be entirely coated with a rubber sleeve, for instance by immersion in a bath or by covering.
- the pressure body has at least one circumferential support body for the bond.
- the support body preferably is made of a shape retaining material, and preferably situated at the side of the counter pressure planes. Further- more the support body preferably has a fixed circumferential length, so that the (radial) location of the portions of the pressure body connected to it is determined. Preferably such a support body is provided in each arm of the (segment of the) pressure body.
- the fitting of the pressure device can be facilitated when the pressure body has a prestress towards the active position, which preferably is realised by means of an elastic material in or on the pressure body.
- the aforementioned lining may have such a function, if circumferential.
- the invention provides an assembly of a pressure device according to the invention and a rigid body, for instance a round body such as a tube, the pressure body with the counter pressure plane bearing against rigid placement means, such as placement rings, which in radial direction are stationarily arranged with respect to the body.
- a rigid body for instance a round body such as a tube
- rigid placement means such as placement rings
- outer placement means or placement rings may form a connection with each other and both other placement means or placement rings have been arranged for controlled, axial displacement.
- the object may be sealing.
- the pressure body provided with a sealing material, will form a sealing for a leakage path for fluid, such as water or gas, along the surface of the round body.
- the pressure body may have a tensile security function.
- the pressure planes may be provided with friction increasing means or profiles, such as tooth-shaped ridges.
- the design of the pressure device according to the invention however also renders it effective in a protection against axial movement under the influence of pressure.
- the pressure plane may be composed, one part being formed by elastic material and another part being formed by a friction profile.
- the invention provides a method for coupling two tubes that are substantially in line with each other, a sealing jacket being placed internally or externally around the coupling area, a pressure body according to the invention being placed at two rings of the jacket axially spaced from each other, with the side plane and counter pressure plane being supported in the jacket, and a placement ring being placed on both other side planes and counter pressure planes and subsequently the axial distance between the placement rings and the jacket rings situated near them being reduced, in order to thus reduce the distance between the side planes and sealingly pressing the pressure planes against the surface of the tube concerned.
- the placement rings are situated at a fixed axial distance from each other and forming a unity with the jacket, whereas on the jacket, axially within the placement rings, two rings are provided which can be adjusted in axial direction.
- the jacket rings are fixed with the jacket and the placement rings are adjustable in axial direction.
- the jacket has such a relative diameter, that some tilting of a tube is possible, the fact that the pressure planes will have a small diameter in axial direction also contributing to that end.
- the forcing towards each other of the jacket ring and the placement ring takes place under the influence of a prestress in the pressure body concerned.
- the location of the placement rings with respect to the jacket is adjusted, preferably with an adjustment bolt, quick- acting clamp or swivel.
- Figure 1 shows a partial cross-section of the tube coupling, in which an exemplary embodiment of pressure devices according to the invention is included;
- Figures 1 A and 1 B schematically show a coupling comparable to the one of figure 1 ;
- Figure 2 shows another example of a pressure device according to the invention
- FIGS. 3A-C schematically show the operation of a pressure device according to the invention
- Figures 4A-4K respectively show a number of examples of pressure devices according to the invention, destined for sealing and/or securing;
- Figure 5 shows a further exemplary embodiment of a pressure device according to the invention, designed double for securing and sealing
- Figure 6 shows two further examples of couplings of hollow bodies, but now with internal arrangement.
- the tube coupling 1 of figure 1 ensures sealing coupling of two tubes 2 and 3, which have different diameters.
- a rigid circumferential placement ring 5 Around the tube 2 a rigid circumferential placement ring 5 has been placed, and around the tube 3 a com- parable placement ring 6.
- the intermediate space in axial direction between the tubes 2 and 3 is bridged by a rigid jacket 4.
- the placement ring 5 is provided in one or more of lips 7, having bolt holes 8.
- the placement ring 6 is provided with one or more lips 9, having bolt hole 10.
- the jacket 4 in a comparable manner is provided with lips 1 1 and 1 3 having bolt holes 1 2 and 1 3, respectively.
- the placement ring 5 defines a seat 1 5, the placement ring 6 a circum- ferential seat 1 6, whereas at both ends with edges 50 and 60 the jacket 4 defines comparable circumferential seats 1 7 and 1 8.
- the seats 1 5, 1 6, 1 7 and 1 8 form a support for pressure bodies 1 9 and 20 according to the invention, in axial and in outward radial direction.
- said pressure bodies are built up from -at least as considered in cross- section- two more or less rigid arms 31 , which in the middle are hingeably connected to each other.
- a lining 29 has been provided, which functions sealingly and may for instance be made of rubber, or another (elastic) material of comparable sealing properties.
- the placement ring 5 and the placement ring 6 can thus be axially moved towards the jacket 4 in the direction A and B, as a result of which the seats 1 5 and 17 and 16 and 1 8 are forced towards each other in axial direction.
- the ends of the arms 31 of the pressure bodies 1 9 and 20 will also be forced towards each other, but with their arm ends forming -axially oriented- side planes and -radially oriented- counter pressure planes, rotate in the seats 1 5-1 8, as a result of which the hinges with which the arms are connected to each other will radially be forced to the inside in the direction C and D. In this way also the plane 28 with which the sealing is forced against the tubes 2 and 3 is also firmly pressed for optimal sealing.
- the pressure body 30 shown in figure 2 is formed as one unity from for instance nylon, and comprises two relatively shape-retaining annular portions 32a, 32b, which form support bodies and from which arms 31 a, 31 b extend towards each other, which arms are connected to each other by means of bridges 36. Between the arms and the bridges, considered in circumferential direction, slit-shaped spaces are present, in order to provide space for approach of the arms and the bridges when they are moved radially inwards. In order to prevent ruptures said intermediate spaces end in holes 34a, which via widening slits 33a debouch in slits 37 between the bridges.
- the bridges 36 can be considered hinges with which the arms 31 a and 31 b are connected to each other.
- the rings 32a, 32b are provided with side planes 35a, b and support and counter pressure planes 35c, 35d.
- a (segment of) pressure body 1 30, is shown which is provided with two arms 1 31 a, 1 31 b made of relatively rigid material, which are connected to each other by means of hinge 1 36.
- a continuous rubber lining or coating 140 has been applied over the pressure body 1 30 -which functions as a frame-, which lining is turned over the ends of the arms 1 31 a, 1 31 b with the portions 1 35a, 1 35b.
- the lining 140 is thickened, and there forms a pressure surface 1 38. It will be understood that a circumferential, continuous series of the segments shown can be formed, in which the sealing lining is continuous.
- the pressure body 130 built up from said segments, has been placed in the tube coupling of figure 1 .
- There the seats 1 5-1 8 ensure that the support surface, indicated by T in figure 3a and 3B, is stationary considered in radial direction.
- the pressure plane 1 38 in the direction C will be urged radially to the inside, to reach the situation shown in figure 3B.
- the internal radius defined by a circumferential series of pressure planes 138 of R1 will then be reduced to R2 (also see figure 3C).
- segment 230 is shown, comprising two arms 231 a, 231 b, which are connected to each other by means of hinge 236.
- a rubber lining is shown, comprising two arms 231 a, 231 b, which are connected to each other by means of hinge 236.
- a metal part extends through the ends of the arms, which part is annular and keeps consecutive segments 230 in circumferential series with each other.
- the segments may be abutting with their arm ends, but alternatively spacers can be arranged on a continuous ring, so that the ends of the consecutive segments are kept at the correct distance from each other without them abutting each other directly.
- An alternative for attaching the rubber sleeve 24 at the arm ends and connecting the segments to each other is, instead of the rings accommodated in the arm ends, designing the arm ends in a narrowed manner and clamping a circumferential, in cross-section U-shaped steel ring over the narrowed part. The narrowing is such that the outer surface of the steel ring fluently changes into the surface of the arms. The rubber can then be attached over the arm end without a possibility of its getting damaged.
- a special aspect is that the rubber sleeve can be arranged on the pressure body according to the invention by (possibly also) stretching it in circumferential direction. If necessary provisions that are not shown can be made to keep the arm ends in the (shown) situation prior to placement at a distance from each other. After placement said provision or locking can be removed, after which the rubber sleeve at the location of the pressure plane 238 would want to tend back to its original situation, and will contract, as a result of which as it were the arms will hinge along of their own accord and the pressure plane 238 will be moved radially inwards. The arm ends are kept in their places in radial sense by the circumferential rings, which function as -internal- support body.
- FIG 4B an alternative embodiment is shown, which for a large part corresponds to the one of figure 2.
- the consecutive segments thus form a unity with each other.
- the pressure body 330 has been provided with a hinge forming bridge 336, in which a rubber lining 340 has been applied, which in a thickened portion forms pressure plane 338.
- the rubber sleeve 340 not necessarily extends over both arms, yet it is possible (portion 340').
- FIG 4C a pressure body 430 is shown, of which the arms 431 a, 431 b have unequal lengths.
- a pressure body 530 is shown, of which the arms are connected to each other by means of two hinges 536a, b, whereas also the pressure plane 538 has two portions.
- the hinges 536a, b are hingeably connected to each other by means of intermediate part 537.
- a pressure body 630 is shown, which like in figure 4D has two hinges 636a, b for connecting both arms to each other, a pressure plane being formed by a series of saw teeth, arranged on a circumferential ring, provided with axial/radial ribs 637 and on which each time two arms 631 a, b are hingeably attached.
- the pressure body 730 is shown, which in a hinge 736 has been provided with a series of gripping teeth 739.
- the pressure body 830 is shown, of which one of the relatively rigid arms, that are hingeably connected to each other, has been provided with a series of teeth 839 active in one direction.
- a pressure body 930 is shown, which is provided with two hingeably connected arms, which at their ends are provided with series of engagement teeth 939, which when hinging during placement are moved towards each other and into an engaging position.
- FIG 41 an alternative shape of the pressure body 230' is shown, consisting of two synthetic arms 231 a', 231 b' put or snapped together in an interlocking manner at the location of the hinge, which arms in the arm area are provided with grooves 241 a', 241 b' opening to the pressure side.
- each composed pressure body can easily be assembled on a rigid ring with the grooves 241 a', 241 b'.
- the pressure bodies 230' can, in the same manner as described above, be surrounded at the pressure side by a rubber sleeve.
- the intermediate part 1040 has an engagement toothing 1039, whereas over the arm 1031 b an in circumferential direction circumferential rubber sleeve 1040 has been arranged, which in axial direction adjacent to the toothing 1039 provides a rubber sealing plane 1038.
- a combined securing and sealing can also be provided with the arrangement shown in figure 5, which is somewhat similar to the one of figure 1 , in which the one pressure body 730 serves for securing the one tube and the pressure body 1 30 serves for forming the sealing along the other tube.
- the lips through which the bolt 21 ' extends are in line with each other, so that less bolts will suffice and both pressure bodies can be tensioned with one single action.
- FIG 6 in the upper part, a use of a pressure device according to the invention is shown, in which it is circumferential yet radially active to the outside.
- the pressure device is for instance placed in the inside of a round body, where placement of the pressure body in the passage is not problematic as it for instance does not fulfil a transport function for liquid or solid matter.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Joints With Sleeves (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00911484A EP1165999A1 (en) | 1999-03-10 | 2000-03-10 | Pressure device for the securing or sealing of bodies |
AU33351/00A AU3335100A (en) | 1999-03-10 | 2000-03-10 | Pressure device for the securing or sealing of bodies |
NO20014378A NO20014378L (en) | 1999-03-10 | 2001-09-10 | Pressure device for attaching or sealing bodies |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1011520 | 1999-03-10 | ||
NL1011520A NL1011520C2 (en) | 1999-03-10 | 1999-03-10 | Pressure device for fixing or sealing bodies. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000053964A1 true WO2000053964A1 (en) | 2000-09-14 |
Family
ID=19768812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2000/000162 WO2000053964A1 (en) | 1999-03-10 | 2000-03-10 | Pressure device for the securing or sealing of bodies |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1165999A1 (en) |
AU (1) | AU3335100A (en) |
NL (1) | NL1011520C2 (en) |
NO (1) | NO20014378L (en) |
WO (1) | WO2000053964A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007110453A1 (en) * | 2006-03-29 | 2007-10-04 | Belgicast Internacional, S.L.U. | General purpose fluid-tight gasket |
ES2535346A1 (en) * | 2013-11-06 | 2015-05-08 | Bsh Electrodomésticos España, S.A. | Bonding device, gas pipe arrangement, cooking point, and cooking appliance (Machine-translation by Google Translate, not legally binding) |
WO2015139148A1 (en) * | 2014-03-20 | 2015-09-24 | Theodor Wüst | Plug-type sleeve |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662867A (en) * | 1970-03-13 | 1972-05-16 | Robert B Kinzbach | Force transmitting coupling |
EP0168069A1 (en) | 1984-05-17 | 1986-01-15 | Dresser Europe S.A. | Tube coupling |
US5037144A (en) * | 1990-05-02 | 1991-08-06 | Amsted Industries Incorporated | Restrained pipe joint |
DE4339361A1 (en) * | 1993-10-06 | 1995-06-22 | Manibs Spezialarmaturen | Fluid tight connection for pipe |
DE19542463A1 (en) * | 1995-11-15 | 1997-05-28 | Mero Gmbh & Co Kg | Sealed pipe coupling with slit clamping band and tensioning device |
-
1999
- 1999-03-10 NL NL1011520A patent/NL1011520C2/en not_active IP Right Cessation
-
2000
- 2000-03-10 AU AU33351/00A patent/AU3335100A/en not_active Abandoned
- 2000-03-10 EP EP00911484A patent/EP1165999A1/en not_active Withdrawn
- 2000-03-10 WO PCT/NL2000/000162 patent/WO2000053964A1/en not_active Application Discontinuation
-
2001
- 2001-09-10 NO NO20014378A patent/NO20014378L/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662867A (en) * | 1970-03-13 | 1972-05-16 | Robert B Kinzbach | Force transmitting coupling |
EP0168069A1 (en) | 1984-05-17 | 1986-01-15 | Dresser Europe S.A. | Tube coupling |
US5037144A (en) * | 1990-05-02 | 1991-08-06 | Amsted Industries Incorporated | Restrained pipe joint |
DE4339361A1 (en) * | 1993-10-06 | 1995-06-22 | Manibs Spezialarmaturen | Fluid tight connection for pipe |
DE19542463A1 (en) * | 1995-11-15 | 1997-05-28 | Mero Gmbh & Co Kg | Sealed pipe coupling with slit clamping band and tensioning device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007110453A1 (en) * | 2006-03-29 | 2007-10-04 | Belgicast Internacional, S.L.U. | General purpose fluid-tight gasket |
EA013935B1 (en) * | 2006-03-29 | 2010-08-30 | Бельхикаст Интернасьональ, С.Л.У. | General purpose fluid-tight gasket |
ES2535346A1 (en) * | 2013-11-06 | 2015-05-08 | Bsh Electrodomésticos España, S.A. | Bonding device, gas pipe arrangement, cooking point, and cooking appliance (Machine-translation by Google Translate, not legally binding) |
WO2015139148A1 (en) * | 2014-03-20 | 2015-09-24 | Theodor Wüst | Plug-type sleeve |
US10119639B2 (en) | 2014-03-20 | 2018-11-06 | Theodor WÜST | Plug-type sleeve |
RU2675959C2 (en) * | 2014-03-20 | 2018-12-25 | Теодор ВЮСТ | Plug-type sleeve |
Also Published As
Publication number | Publication date |
---|---|
NL1011520C2 (en) | 2000-09-12 |
NO20014378L (en) | 2001-11-12 |
AU3335100A (en) | 2000-09-28 |
NO20014378D0 (en) | 2001-09-10 |
EP1165999A1 (en) | 2002-01-02 |
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