WO2015071907A1 - Branching-off pipe coupler - Google Patents

Branching-off pipe coupler Download PDF

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Publication number
WO2015071907A1
WO2015071907A1 PCT/IL2014/050988 IL2014050988W WO2015071907A1 WO 2015071907 A1 WO2015071907 A1 WO 2015071907A1 IL 2014050988 W IL2014050988 W IL 2014050988W WO 2015071907 A1 WO2015071907 A1 WO 2015071907A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
recess
clamping coupler
lug
clamping
Prior art date
Application number
PCT/IL2014/050988
Other languages
French (fr)
Inventor
Grigori KREIMERMAN
Genia LUBOMIRSKI
Original Assignee
Modgal Metal (99) Ltd.
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 Modgal Metal (99) Ltd. filed Critical Modgal Metal (99) Ltd.
Publication of WO2015071907A1 publication Critical patent/WO2015071907A1/en

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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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/12—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe using attaching means embracing the pipe

Definitions

  • the presently disclosed subject matter is in the field of couplers, and more specifically clamping couplers which can be coupled to any longitudinal tubular segment by a clamping arrangement.
  • Clamping couplers are well known and are in use for different purposes, and at different configurations.
  • a clamping coupler can be suitable for longitudinal tubular segments, and is couplable by two segments pressed against each other so as to clamp the tubular segment therebetween.
  • Such clamping couplers are often used in the piping industry, though not restricted thereto, and in one of its common configurations are used for coupling additional piping elements to a pipe segment.
  • the clamping coupler disclosed herein is most suitable for that purpose.
  • clamping coupler for example in US 3,362,730, directed to a side outlet coupling for piping, which couples to a pipe segment by a clamping arrangement, and enables coupling of additional pipe elements to the pipe segment.
  • a clamping coupler configured for coupling to a longitudinal tubular segment having a longitudinal axis, the clamping coupler comprising a coupling element and a bracing element;
  • one of the bracing element and the coupling element is configured with a first end and a second end, and with a lug disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug;
  • each of the locking ports is configured with an entrance point and an end point, wherein at least the end point of the first port is different from the entrance point; and wherein the distance between the entrance point of the first port and the second port is equal to the distance between the end point of the first port and the second port.
  • the arrangement being such that when assembled, the coupling element and the bracing element form together a closed contoured structure configured for bracing the tubular segment in such a manner that a longitudinal axis of the clamping coupler extends parallel to the longitudinal axis of the longitudinal tubular segment.
  • the end point of the second port coincides with the entrance point of said second port.
  • the second port is configured as a recess.
  • the recess of the first port and the recess of the second port are parallel to one another and to a longitudinal axis of the clamping coupler, with the entrance point of the first port and the entrance point of the second port facing in the same axial direction.
  • the recess of the first port and the recess of the second port are arcuate and extend with their apex facing away from one another, with the entrance point of the first port and the entrance point of the second port facing in an opposite axial direction.
  • the clamping coupler comprises at least one fastening element, attachable to said lug, having at least a fastened state, in which it is attached to said lug in such a manner that it fastens said bracing element to said coupling element, so as to clamp said tubular segment therebetween; and a loose state, in which it is attached to said lug in such a manner that it allows the bracing element to move relative to the coupling element, while the tubular segment is disposed therebetween.
  • the fastening element can be a threaded nut, attachable to a corresponding thread on said lug; any one or both of the bracing element and the coupling element can comprise one or more connecting arrangements. Such connecting arrangements are configured for attaching to the clamping coupler different accessories such as piping elements, electric/communication cables, wall mountings for attaching the clamping coupler to a wall, and the like.
  • the tubular segment is a pipe segment.
  • the pipe segment can be used for transportation of fluids, and the clamping coupler can constitute a branch outlet, e.g. for other pipe elements such as sprinkler for fire protection systems.
  • a method for coupling of a clamping coupler to a longitudinal tubular segment having a longitudinal axis comprising the following steps:
  • one of the bracing element and the coupling element is configured with a first end and a second end, and with a lug disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug;
  • each of the locking ports is configured with an entrance point and an end point, wherein at least the end point of the first port is different from the entrance point;
  • step c) before or after step c), attaching a fastening element to said lug in a loose state, in which relative movement between the bracing element and the coupling element is allowed;
  • the clamping coupler can comprise a second fastening element, attachable to a respective second lug disposed at the second end;
  • the entrance point and the end point of the second locking port can be coincident or extend at opposite ends of the recess
  • the recess of the first locking port and the recess of the second locking port can be accessible from the same direction;
  • a first path, extending along the first recess, defined by the entrance point and the end point of the first locking port, can be substantially straight;
  • a second path, extending along the second recess, defined by the entrance point and the end point of the second locking port, can be substantially parallel to the first path
  • Insertion of the lug into the recess of the first locking port and a second lug into the second recess can be facilitated by moving them axially along a path extending substantially parallel to the longitudinal axis of the clamping coupler;
  • the recess of the first locking port and the recess of the second locking port can be accessible from opposite directions; • The first path can be arcuate;
  • the second path can be arcuate, however conditional that the first path is arcuate;
  • the second end can be hingedly attached at the said second locking port
  • Each one or both of the bracing element and the coupling element can be U-shaped
  • the distance between the first end and the second end can be constant and equal to the distance between the entrance point of the first locking port and the second locking port;
  • the connecting arrangement can be configured for receiving an additional pipe element, so as to allow flow intersection
  • the additional pipe element can be a branch outlet, e.g. a sprinkler for fire protection systems
  • Fig. 1 is a perspective view of one example of a clamping coupler known in the art
  • Fig. 2 is a perspective view of a clamping coupler in accordance with an example of the presently disclosed subject matter
  • Fig. 3 is a perspective view of the clamping coupler of Fig. 2, mounted on a longitudinal tubular segment;
  • Fig. 4 is an isometric perspective view of the coupling element of the clamping coupler of Fig. 2;
  • Fig. 5 is a top view of the coupling element of the clamping coupler of Fig. 2;
  • Fig. 6 is a perspective view of the bracing element with the fastening element attached thereon, of the clamping coupler of Fig. 2;
  • Fig. 7 A is a front view of the clamping coupler of Fig. 2 in its preliminary state
  • Fig. 7B is an isometric perspective view of the clamping coupler of Fig. 2 in its preliminary state
  • Fig. 7C is a top view of the clamping coupler of Fig. 2 in its preliminary state
  • Fig. 8A is a front view of the clamping coupler of Fig. 2 in its intermediate state
  • Fig. 8B is an isometric perspective view of the clamping coupler of Fig. 2 in its intermediate state
  • Fig. 8C is a top view of the clamping coupler of Fig. 2 in its coupled state
  • Fig. 9A is a front view of the clamping coupler of Fig. 2 in its coupled state
  • Fig. 9B is an isometric perspective view of the clamping coupler of Fig. 2 in its coupled state
  • Fig. 9C is a top view of the clamping coupler of Fig. 2 in its intermediate state
  • Fig. 10A is a perspective view of the clamping coupler in accordance with another example of the presently disclosed subject matter
  • Fig. 10B is a top view of the clamping coupler of Fig. 10A;
  • Fig. 11A is a perspective view of the clamping coupler in accordance with another example of the presently disclosed subject matter.
  • Fig. 11B is a top view of the clamping coupler of Fig. 11 A;
  • Fig. 12A is a perspective view of the clamping coupler in accordance with another example of the presently disclosed subject matter
  • Fig. 12B is a top view of the clamping coupler of Fig. 12A.
  • Fig. 13 is a front view of the clamping coupler in accordance with another example of the presently disclosed subject matter.
  • Fig. 1 shows one example of a clamping coupler generally designated 101, which is well known in the art.
  • Clamping coupler 101 comprises a coupling element 110 and a bracing element 130, which in operation are pressed against each other so as to clamp therebetween a pipe segment (not shown).
  • the coupling element 110 comprises a connecting arrangement 122 for the purpose of connecting an additional pipe element thereto, and a first locking port configured as a first recess 113, and a second locking port configured as a second recess 114.
  • Recess 113 and recess 114 are parallel and radially extend and are configured for receiving respectively lugs 134 and 135, disposed at a first end 132 and a second end 133 of the bracing element.
  • Threaded nuts 150 and 151 are screw couplable to threads on lugs 134 and 135, respectively, and are configured for pressing the bracing element 130 and the coupling element 110 towards each other, when fastened.
  • the threaded nuts are configurable between at least a fastened state, in which they are tightly screwed to said lugs in such a manner that said bracing element is secured to said coupling element, so as to clamp said longitudinal tubular segment therebetween, and a loose state, in which they are attached to said lugs in such a loose manner that allows the bracing element to move relative to the coupling element, while the longitudinal tubular segment is disposed therebetween.
  • Recess 113 is configured with an entrance point 115, and an end point 117, similarly in recess 114, which is configured with an entrance point 116 and an end point 118 . Due to the configuration of the recesses, assembling of the coupling element 110 and the bracing element 130, when separated, requires separating nuts 150 and 151 from lugs 134 and 135. Once lugs 134 and 135 are free from nuts 150 and 151, their insertion into recesses 113 and 114 is enabled by moving the bracing element 130 along axis H, perpendicularly to the longitudinal axis of the clamping coupler Z (though a high degree of angular tolerance is facilitated, so that the bracing element 130 can be rotated). Once the lugs are disposed in their respective recesses, the nuts 150 and 151 can be attached to the lugs 134 and 135, and fastened so as to clamp the pipe.
  • FIG. 2 illustrating a clamping coupler generally designated 1, comprising a coupling element 10, a bracing element 30 and two fastening elements in the form of threaded nuts 50 and 51, and having a longitudinal axis X.
  • the clamping coupler 1 of the illustrated example is configured for coupling to a pipe segment generally designated as P having a longitudinal axis X', by clamping the pipe segment P between the coupling element 10 and the bracing element 30.
  • axes X and X' are parallel to each other in the illustrated example, it is appreciated that they can intersect.
  • the illustrated clamping coupler 1 is configured for coupling an additional pipe element P' to the pipe segment P.
  • the bracing element 30 is pressed against the coupling element 10 so as to clamp the pipe segment P, by the fastening elements, which in the illustrated example, are in the form of threaded nuts 50 and 51.
  • the coupling element 10 of the illustrated example is shown in Figs. 4 and 5. As can be seen, the illustrated coupling element 10 is configured with a first locking port in the form of recess 13 and a second locking port in the form of recess 14.
  • Recesses 13 and 14 define a first path Y and a second path Y', respectively, which are substantially parallel to the longitudinal axis X of the clamping coupler 1.
  • Recesses 13 and 14 are configured with entrance points 15 and 16 at their open end, and with end points 17 and 18 at their opposite closed end. In the illustrated example both recesses 13 and 14 face the same direction. As can be seen, the distance Di between the entrance point 15 and the entrance point 16, is equal to the distance D2 between the end point 17 and the end point 18.
  • paths Y and Y' are substantially straight and parallel to the longitudinal axis X of the clamping coupler 1.
  • the coupling element 10 also comprises a concaved pipe surface 20, configured for bearing against the pipe P when coupled thereto, and a connecting arrangement 22, configured for receiving the additional pipe element P'.
  • the connecting arrangement 22 is configured with a bore 24, designated for allowing flow intersection between pipe segment P and pipe element P'. Said bore 24 is configured for adapting to a corresponding bore (not shown) in the pipe P.
  • the connecting arrangement 22 of the illustrated example is configured with a protrusion 25 (seen in Fig. 7A), configured for penetrating into the pipe P and constitutes a continuity of the bore 24.
  • Fig. 6 illustrating an example of the bracing element 30 with the threaded nuts 50 and 51 attached over the respective lugs 34 and 35.
  • the illustrated bracing element 30 is configured with a first end 32 and a second end 33, and with lugs 34 and 35 disposed at said ends, respectively.
  • the distance Do between lug 34 and lug 35 is equal to the distances Di and D2.
  • the illustrated bracing element 30 further comprises a concaved bracing portion 36, configured for bearing against the pipe P when the clamping coupler is coupled thereto (Fig. 3).
  • Steps of coupling the clamping coupler 1 to the pipe P are illustrated in Figs. 7, 8 and 9.
  • Figs. 7 A to 7C illustrate a preliminary state of the clamping coupler 1 relative to the pipe P.
  • the coupling element 10 is placed in such manner that the protrusion 25 of the connecting arrangement 22 penetrates the corresponding bore (not shown) of the pipe P, and the bracing element 30, with the threaded nuts 50 and 51 attached thereto, is placed in such manner that the lug 34 of the first end 32 faces the entrance point 15 of the recess 13, and the lug 35 of the second end 33 faces the entrance point 16 of the recess 14.
  • the bracing element 30 with the threaded nuts 50 and 51 attached thereto
  • the threaded nuts 50 and 51 are slightly threaded into the lugs 34 and 35 in that stage, fastened to a loose state, in which it is attached to lugs 34 and 35 in such a manner that it allows the bracing element 30 to move relative to the coupling element 10, while the pipe segment P is disposed therebetween.
  • the pipe segment P is positioned, in the preliminary state, between the coupling element 10 and the bracing element 30.
  • bracing element 30 is spaced from the coupling element 10 along axis X, in the direction to which the entrance points 15 and 16 face.
  • FIGs. 8A to 8C illustrating an intermediate mounting state of the clamping coupler. This state is facilitated by moving the bracing element 30 from its preliminary state along the longitudinal axis X towards the coupling element 10, thereby inserting the lugs 34 and 35 through the entrance points 15 and 16 into the recesses 13 and 14, along paths Y and Y', respectively, and locating them at the end points 17 and 18.
  • the bracing element 10 In the intermediate state the bracing element 10 is positioned in its final position along the axis X and with respect to the coupling element 30, in which the lugs 34 and 35 are disposed respectively within recesses 13 and 14 at the end points 17 and 18, however the threaded nuts 50 and 51 are not fastened.
  • Figs. 9A to 9C The final step of coupling the clamping coupler 1 to the pipe segment P is illustrated in Figs. 9A to 9C, in which the clamping coupler 1 is in a coupled state.
  • the coupling element 10 is pressed against the bracing element 30, by the threaded nuts 50 and 51, so as to clamp therebetween the pipe segment P.
  • the coupled state is obtained by fastening the threaded nuts 50 and 51 to their fastened state, and pressing the coupling element 10 against the bracing element 30.
  • FIGs. 10A and 10B there is illustrated another example of a clamping coupler 201, having a coupling element 210, a bracing element 230 and two fastening elements in the form of threaded nuts 250 and 251.
  • the bracing element 230 and the threaded nuts 250 and 251 of the clamping coupler 201 are respectively similar to the bracing element 30 and the threaded nuts 50 and 51 of the clamping coupler 1.
  • the coupling element 210 is different from the coupling element 10 by the location of entrance points 215 and 216: while the entrance points 15 and 16 are located at the same side of the clamping coupler 1, with respect to axis X, entrance points 215 and 216 are located at opposite sides of the clamping coupler 201, and accordingly the paths to the recesses 213 and 214 have opposite directions.
  • Each one of recesses 213 and 214 either extends along an arcuate path C or configured with high degree of angular tolerance, allowing the lugs 234 and 235 to be inserted into recess 213 and 214 along arcuate path C.
  • the distance D3 between the entrance point 215 and the entrance point 216 is equal to the distance D between the end point 217 and the end point 218.
  • Fig. 10B the coupled state is obtained similarly as in the clamping coupler 1, i.e. by fastening the nuts 250 and 251.
  • Figs. 11A to 12B there are illustrated two other examples of the clamping coupler in accordance with the subject matter being disclosed. In both examples the entrance point of the second locking port coincides with its end point.
  • the second port is a recess 314, which extend perpendicularly to axis X of the coupler.
  • An entrance point 316 coincides with an end point 318, adjacent to the closed end of recess.
  • An entrance point 315 is located at the open end of recess 313, while an end point 317 is located at the opposite closed end of recess 313 defining therebetween an arcuate path C".
  • Entrance point 316 is distant from entrance point 315 by Ds and end point 318 is distant from end point 317 by De, which is equal to Ds.
  • Insertion of a lug 335, located at a second end 333, into recess 314, and locating it at the coincident entrance ⁇ end point is performed prior to the insertion of lug 334, located at a first end 332, into the recess 313, along the arcuate path C".
  • the second locking port is in the form of a joint 414 with the second end 433 hinged thereto.
  • Joint 414 defines coincident entrance point 416 and end point 418.
  • the first locking port is in the form of recess 413, having an entrance point 415 and an end point 418, defining an arcuate path C" therebetween, and distant from the coincident entrance ⁇ end point of joint 414 by distances D7 and Ds, which are equal. Insertion of lug 434 into the recess 413 is facilitated by moving it along the arcuate path C".
  • the second end of the bracing element is inserted into the corresponding second locking port prior to the insertion of the lug into the recess, and the lug is inserted into the corresponding recess along an arcuate path.
  • FIG. 13 Another example of the clamping coupler is illustrated in Fig. 13.
  • the bracing element 530 comprises the locking ports which constitute recesses 513 and 514, while the coupling element comprises the lugs 534 and 535, which are attachable respectively to threaded nuts 550 and 551.

Abstract

A clamping coupler configured for coupling to a longitudinal tubular segment having a longitudinal axis. The clamping coupler comprises a coupling element (10) and a bracing element (30). One of the bracing element (30) and the coupling element (10) is configured with a first end (32) and a second end (33), and with a lug (34, 35) disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug. Each of the locking ports is configured with an entrance point (15, 16) and an end point (17, 18), wherein at least the end point of the first port is different from its entrance point. The distance (D1) between the entrance point of the first port and the second port is equal to the distance (D2) between the end point of the first port and the second port.

Description

BRANCHING-OFF PIPE COUPLER
TECHNOLOGICAL FIELD
The presently disclosed subject matter is in the field of couplers, and more specifically clamping couplers which can be coupled to any longitudinal tubular segment by a clamping arrangement.
PRIOR ART
Reference considered to be relevant as background to the presently disclosed subject matter is listed below:
- US 3,362,730
Acknowledgement of the above reference herein is not to be inferred as meaning that this is in any way relevant to the patentability of the presently disclosed subject matter.
BACKGROUND
Clamping couplers are well known and are in use for different purposes, and at different configurations. A clamping coupler can be suitable for longitudinal tubular segments, and is couplable by two segments pressed against each other so as to clamp the tubular segment therebetween. Such clamping couplers are often used in the piping industry, though not restricted thereto, and in one of its common configurations are used for coupling additional piping elements to a pipe segment. The clamping coupler disclosed herein is most suitable for that purpose.
An example of such clamping coupler is described for example in US 3,362,730, directed to a side outlet coupling for piping, which couples to a pipe segment by a clamping arrangement, and enables coupling of additional pipe elements to the pipe segment. GENERAL DESCRIPTION
According to a first aspect of the presently disclosed subject matter there is disclosed a clamping coupler configured for coupling to a longitudinal tubular segment having a longitudinal axis, the clamping coupler comprising a coupling element and a bracing element;
one of the bracing element and the coupling element is configured with a first end and a second end, and with a lug disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug;
each of the locking ports is configured with an entrance point and an end point, wherein at least the end point of the first port is different from the entrance point; and wherein the distance between the entrance point of the first port and the second port is equal to the distance between the end point of the first port and the second port.
The arrangement being such that when assembled, the coupling element and the bracing element form together a closed contoured structure configured for bracing the tubular segment in such a manner that a longitudinal axis of the clamping coupler extends parallel to the longitudinal axis of the longitudinal tubular segment.
According to one example, the end point of the second port coincides with the entrance point of said second port.
According to a particular example, the second port is configured as a recess. According to one design, the recess of the first port and the recess of the second port are parallel to one another and to a longitudinal axis of the clamping coupler, with the entrance point of the first port and the entrance point of the second port facing in the same axial direction.
According to yet another design, the recess of the first port and the recess of the second port are arcuate and extend with their apex facing away from one another, with the entrance point of the first port and the entrance point of the second port facing in an opposite axial direction.
According to one example, the clamping coupler comprises at least one fastening element, attachable to said lug, having at least a fastened state, in which it is attached to said lug in such a manner that it fastens said bracing element to said coupling element, so as to clamp said tubular segment therebetween; and a loose state, in which it is attached to said lug in such a manner that it allows the bracing element to move relative to the coupling element, while the tubular segment is disposed therebetween. The fastening element can be a threaded nut, attachable to a corresponding thread on said lug; any one or both of the bracing element and the coupling element can comprise one or more connecting arrangements. Such connecting arrangements are configured for attaching to the clamping coupler different accessories such as piping elements, electric/communication cables, wall mountings for attaching the clamping coupler to a wall, and the like.
According to one particular example the tubular segment is a pipe segment. The pipe segment can be used for transportation of fluids, and the clamping coupler can constitute a branch outlet, e.g. for other pipe elements such as sprinkler for fire protection systems.
According to another aspect of the presently disclosed subject matter there is disclosed a method for coupling of a clamping coupler to a longitudinal tubular segment having a longitudinal axis, the method comprising the following steps:
a) providing a clamping coupler configured for coupling to a longitudinal tubular segment having a longitudinal axis, the clamping coupler comprising a coupling element and a bracing element;
one of the bracing element and the coupling element is configured with a first end and a second end, and with a lug disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug;
each of the locking ports is configured with an entrance point and an end point, wherein at least the end point of the first port is different from the entrance point; and
wherein the distance between the entrance point of the first port and the second port is equal to the distance between the end point of the first port and the second port.
b) positioning said bracing element and said coupling element in a preliminary state, in which they are at least partially detached from one another, with the tubular segment positioned therebetween, and with said lug facing the entrance point of the first port;
c) inserting said lug into the entrance point of the first port, and displacing the lug along a path extending between the first entrance point and the first end point;
d) before or after step c), attaching a fastening element to said lug in a loose state, in which relative movement between the bracing element and the coupling element is allowed; and
e) fastening said fastening element to a fastened state, in which it is attached to said lug in such a manner that it fastens said bracing element to said coupling element, so as to clamp said tubular segment therebetween.
Any one or more of the following features, designs and configurations can be incorporated in any one or more of the aspects of the presently disclosed subject matter, independently or in combinations thereof:
• The clamping coupler can comprise a second fastening element, attachable to a respective second lug disposed at the second end;
• The entrance point and the end point of the second locking port can be coincident or extend at opposite ends of the recess;
• The recess of the first locking port and the recess of the second locking port can be accessible from the same direction;
• A first path, extending along the first recess, defined by the entrance point and the end point of the first locking port, can be substantially straight;
• A second path, extending along the second recess, defined by the entrance point and the end point of the second locking port, can be substantially parallel to the first path;
• Insertion of the lug into the recess of the first locking port and a second lug into the second recess can be facilitated by moving them axially along a path extending substantially parallel to the longitudinal axis of the clamping coupler;
• The recess of the first locking port and the recess of the second locking port can be accessible from opposite directions; • The first path can be arcuate;
• The second path can be arcuate, however conditional that the first path is arcuate;
• Insertion of the lug of the first end into the recess of the first locking port and the lug of the second end into the recess the second locking port can be facilitated by moving them along arcuate respective paths;
• The second end can be hingedly attached at the said second locking port;
• Each one or both of the bracing element and the coupling element can be U-shaped;
• The distance between the first end and the second end can be constant and equal to the distance between the entrance point of the first locking port and the second locking port;
• The connecting arrangement can be configured for receiving an additional pipe element, so as to allow flow intersection;
• The additional pipe element can be a branch outlet, e.g. a sprinkler for fire protection systems;
BRIEF DESCRIPTION OF THE DRAWINGS
In order to better understand the subject matter that is disclosed herein and to exemplify how it may be carried out in practice, embodiments will now be described, by way of non-limiting examples only, with reference to the accompanying drawings, in which:
Fig. 1 is a perspective view of one example of a clamping coupler known in the art;
Fig. 2 is a perspective view of a clamping coupler in accordance with an example of the presently disclosed subject matter;
Fig. 3 is a perspective view of the clamping coupler of Fig. 2, mounted on a longitudinal tubular segment;
Fig. 4 is an isometric perspective view of the coupling element of the clamping coupler of Fig. 2;
Fig. 5 is a top view of the coupling element of the clamping coupler of Fig. 2; Fig. 6 is a perspective view of the bracing element with the fastening element attached thereon, of the clamping coupler of Fig. 2;
Fig. 7 A is a front view of the clamping coupler of Fig. 2 in its preliminary state;
Fig. 7B is an isometric perspective view of the clamping coupler of Fig. 2 in its preliminary state;
Fig. 7C is a top view of the clamping coupler of Fig. 2 in its preliminary state; Fig. 8A is a front view of the clamping coupler of Fig. 2 in its intermediate state; Fig. 8B is an isometric perspective view of the clamping coupler of Fig. 2 in its intermediate state;
Fig. 8C is a top view of the clamping coupler of Fig. 2 in its coupled state; Fig. 9A is a front view of the clamping coupler of Fig. 2 in its coupled state; Fig. 9B is an isometric perspective view of the clamping coupler of Fig. 2 in its coupled state;
Fig. 9C is a top view of the clamping coupler of Fig. 2 in its intermediate state;
Fig. 10A is a perspective view of the clamping coupler in accordance with another example of the presently disclosed subject matter;
Fig. 10B is a top view of the clamping coupler of Fig. 10A;
Fig. 11A is a perspective view of the clamping coupler in accordance with another example of the presently disclosed subject matter;
Fig. 11B is a top view of the clamping coupler of Fig. 11 A;
Fig. 12A is a perspective view of the clamping coupler in accordance with another example of the presently disclosed subject matter;
Fig. 12B is a top view of the clamping coupler of Fig. 12A; and
Fig. 13 is a front view of the clamping coupler in accordance with another example of the presently disclosed subject matter.
DETAILED DESCRIPTION OF EMBODIMENTS
The presently disclosed subject matter is directed to a clamping coupler, which in the illustrated example is configured for use in conjunction with a pipe segment, and allows coupling of other components such as pipe elements to intersect with the pipe segment. As will be apparent from the following description, the presently disclosed subject matter is advantageous for enabling quick coupling of the coupler to the pipe and saving time in its installation. Fig. 1 shows one example of a clamping coupler generally designated 101, which is well known in the art. Clamping coupler 101 comprises a coupling element 110 and a bracing element 130, which in operation are pressed against each other so as to clamp therebetween a pipe segment (not shown). The coupling element 110 comprises a connecting arrangement 122 for the purpose of connecting an additional pipe element thereto, and a first locking port configured as a first recess 113, and a second locking port configured as a second recess 114.
Recess 113 and recess 114 are parallel and radially extend and are configured for receiving respectively lugs 134 and 135, disposed at a first end 132 and a second end 133 of the bracing element.
Threaded nuts 150 and 151 are screw couplable to threads on lugs 134 and 135, respectively, and are configured for pressing the bracing element 130 and the coupling element 110 towards each other, when fastened. The threaded nuts are configurable between at least a fastened state, in which they are tightly screwed to said lugs in such a manner that said bracing element is secured to said coupling element, so as to clamp said longitudinal tubular segment therebetween, and a loose state, in which they are attached to said lugs in such a loose manner that allows the bracing element to move relative to the coupling element, while the longitudinal tubular segment is disposed therebetween.
Recess 113 is configured with an entrance point 115, and an end point 117, similarly in recess 114, which is configured with an entrance point 116 and an end point 118 . Due to the configuration of the recesses, assembling of the coupling element 110 and the bracing element 130, when separated, requires separating nuts 150 and 151 from lugs 134 and 135. Once lugs 134 and 135 are free from nuts 150 and 151, their insertion into recesses 113 and 114 is enabled by moving the bracing element 130 along axis H, perpendicularly to the longitudinal axis of the clamping coupler Z (though a high degree of angular tolerance is facilitated, so that the bracing element 130 can be rotated). Once the lugs are disposed in their respective recesses, the nuts 150 and 151 can be attached to the lugs 134 and 135, and fastened so as to clamp the pipe.
Attention is directed to Fig. 2, illustrating a clamping coupler generally designated 1, comprising a coupling element 10, a bracing element 30 and two fastening elements in the form of threaded nuts 50 and 51, and having a longitudinal axis X. As can be seen in Fig. 3, the clamping coupler 1 of the illustrated example is configured for coupling to a pipe segment generally designated as P having a longitudinal axis X', by clamping the pipe segment P between the coupling element 10 and the bracing element 30. Although axes X and X' are parallel to each other in the illustrated example, it is appreciated that they can intersect.
As can further be seen in Fig. 3, the illustrated clamping coupler 1 is configured for coupling an additional pipe element P' to the pipe segment P.
As can further be seen in Fig. 3, the bracing element 30 is pressed against the coupling element 10 so as to clamp the pipe segment P, by the fastening elements, which in the illustrated example, are in the form of threaded nuts 50 and 51.
The coupling element 10 of the illustrated example is shown in Figs. 4 and 5. As can be seen, the illustrated coupling element 10 is configured with a first locking port in the form of recess 13 and a second locking port in the form of recess 14.
Recesses 13 and 14 define a first path Y and a second path Y', respectively, which are substantially parallel to the longitudinal axis X of the clamping coupler 1. Recesses 13 and 14 are configured with entrance points 15 and 16 at their open end, and with end points 17 and 18 at their opposite closed end. In the illustrated example both recesses 13 and 14 face the same direction. As can be seen, the distance Di between the entrance point 15 and the entrance point 16, is equal to the distance D2 between the end point 17 and the end point 18.
In the illustrated example, as can be seen best in Fig. 5, paths Y and Y' are substantially straight and parallel to the longitudinal axis X of the clamping coupler 1.
The coupling element 10 also comprises a concaved pipe surface 20, configured for bearing against the pipe P when coupled thereto, and a connecting arrangement 22, configured for receiving the additional pipe element P'. The connecting arrangement 22 is configured with a bore 24, designated for allowing flow intersection between pipe segment P and pipe element P'. Said bore 24 is configured for adapting to a corresponding bore (not shown) in the pipe P. The connecting arrangement 22 of the illustrated example is configured with a protrusion 25 (seen in Fig. 7A), configured for penetrating into the pipe P and constitutes a continuity of the bore 24.
Attention is now directed to Fig. 6, illustrating an example of the bracing element 30 with the threaded nuts 50 and 51 attached over the respective lugs 34 and 35. The illustrated bracing element 30 is configured with a first end 32 and a second end 33, and with lugs 34 and 35 disposed at said ends, respectively. The distance Do between lug 34 and lug 35 is equal to the distances Di and D2.
The illustrated bracing element 30 further comprises a concaved bracing portion 36, configured for bearing against the pipe P when the clamping coupler is coupled thereto (Fig. 3).
Steps of coupling the clamping coupler 1 to the pipe P are illustrated in Figs. 7, 8 and 9.
Figs. 7 A to 7C illustrate a preliminary state of the clamping coupler 1 relative to the pipe P. In this state the coupling element 10 is placed in such manner that the protrusion 25 of the connecting arrangement 22 penetrates the corresponding bore (not shown) of the pipe P, and the bracing element 30, with the threaded nuts 50 and 51 attached thereto, is placed in such manner that the lug 34 of the first end 32 faces the entrance point 15 of the recess 13, and the lug 35 of the second end 33 faces the entrance point 16 of the recess 14. As can be seen best in Fig. 7A, the threaded nuts 50 and 51 are slightly threaded into the lugs 34 and 35 in that stage, fastened to a loose state, in which it is attached to lugs 34 and 35 in such a manner that it allows the bracing element 30 to move relative to the coupling element 10, while the pipe segment P is disposed therebetween. The pipe segment P is positioned, in the preliminary state, between the coupling element 10 and the bracing element 30.
As can be seen in Figs. 7B and 7C, in the preliminary state the bracing element 30 is spaced from the coupling element 10 along axis X, in the direction to which the entrance points 15 and 16 face.
It is also noted in Figs. 7 A and 7B that the longitudinal axis X of the pipe segment P and the longitudinal axis X' of the clamping coupler coincides.
Attention is now directed to Figs. 8A to 8C, illustrating an intermediate mounting state of the clamping coupler. This state is facilitated by moving the bracing element 30 from its preliminary state along the longitudinal axis X towards the coupling element 10, thereby inserting the lugs 34 and 35 through the entrance points 15 and 16 into the recesses 13 and 14, along paths Y and Y', respectively, and locating them at the end points 17 and 18.
In the intermediate state the bracing element 10 is positioned in its final position along the axis X and with respect to the coupling element 30, in which the lugs 34 and 35 are disposed respectively within recesses 13 and 14 at the end points 17 and 18, however the threaded nuts 50 and 51 are not fastened.
The final step of coupling the clamping coupler 1 to the pipe segment P is illustrated in Figs. 9A to 9C, in which the clamping coupler 1 is in a coupled state. In that state the coupling element 10 is pressed against the bracing element 30, by the threaded nuts 50 and 51, so as to clamp therebetween the pipe segment P.
The coupled state is obtained by fastening the threaded nuts 50 and 51 to their fastened state, and pressing the coupling element 10 against the bracing element 30.
Referring now to Figs. 10A and 10B, there is illustrated another example of a clamping coupler 201, having a coupling element 210, a bracing element 230 and two fastening elements in the form of threaded nuts 250 and 251.
The bracing element 230 and the threaded nuts 250 and 251 of the clamping coupler 201 are respectively similar to the bracing element 30 and the threaded nuts 50 and 51 of the clamping coupler 1.
The coupling element 210, however, is different from the coupling element 10 by the location of entrance points 215 and 216: while the entrance points 15 and 16 are located at the same side of the clamping coupler 1, with respect to axis X, entrance points 215 and 216 are located at opposite sides of the clamping coupler 201, and accordingly the paths to the recesses 213 and 214 have opposite directions.
Each one of recesses 213 and 214 either extends along an arcuate path C or configured with high degree of angular tolerance, allowing the lugs 234 and 235 to be inserted into recess 213 and 214 along arcuate path C.
Due to the configuration of the entrance points 215 and 216 of the clamping coupler 201, insertion of the lugs 234 and 235 from the preliminary state to the intermediate state is facilitated by rotating the bracing element 230 thereby moving lugs 234 and 235 along a first arcuate path C and a second arcuate path C, to end points 217 and 218, respectively. As can be seen in Fig.10B, the distance D3 between the entrance point 215 and the entrance point 216 is equal to the distance D between the end point 217 and the end point 218.
Once the lugs 234 and 235 are fully inserted within the recesses 213 and 214, as can be seen in Fig. 10B, the coupled state is obtained similarly as in the clamping coupler 1, i.e. by fastening the nuts 250 and 251. Referring now to Figs. 11A to 12B, there are illustrated two other examples of the clamping coupler in accordance with the subject matter being disclosed. In both examples the entrance point of the second locking port coincides with its end point.
In Figs. 11A and 11B the second port is a recess 314, which extend perpendicularly to axis X of the coupler. An entrance point 316 coincides with an end point 318, adjacent to the closed end of recess. An entrance point 315, however, is located at the open end of recess 313, while an end point 317 is located at the opposite closed end of recess 313 defining therebetween an arcuate path C". Entrance point 316 is distant from entrance point 315 by Ds and end point 318 is distant from end point 317 by De, which is equal to Ds. Insertion of a lug 335, located at a second end 333, into recess 314, and locating it at the coincident entrance\end point is performed prior to the insertion of lug 334, located at a first end 332, into the recess 313, along the arcuate path C".
In the example illustrated in Figs. 12A and 12B, the second locking port is in the form of a joint 414 with the second end 433 hinged thereto. Joint 414 defines coincident entrance point 416 and end point 418. The first locking port is in the form of recess 413, having an entrance point 415 and an end point 418, defining an arcuate path C" therebetween, and distant from the coincident entrance\end point of joint 414 by distances D7 and Ds, which are equal. Insertion of lug 434 into the recess 413 is facilitated by moving it along the arcuate path C".
According to the both configurations illustrated in Figs. 11 and 12, the second end of the bracing element is inserted into the corresponding second locking port prior to the insertion of the lug into the recess, and the lug is inserted into the corresponding recess along an arcuate path.
Another example of the clamping coupler is illustrated in Fig. 13. In this example the bracing element 530 comprises the locking ports which constitute recesses 513 and 514, while the coupling element comprises the lugs 534 and 535, which are attachable respectively to threaded nuts 550 and 551.

Claims

CLAIMS:
1. A clamping coupler configured for coupling to a longitudinal tubular segment having a longitudinal axis, the clamping coupler comprising a coupling element and a bracing element;
one of the bracing element and the coupling element is configured with a first end and a second end, and with a lug disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug;
each of the locking ports is configured with an entrance point and an end point, wherein at least the end point of the first port is different from its entrance point; and wherein the distance between the entrance point of the first port and the second port is equal to the distance between the end point of the first port and the second port.
2. A clamping coupler according to Claim 1 , wherein the tubular segment is a pipe segment.
3. A clamping coupler according to any one of Claims 1 or 2, wherein the arrangement is such that when assembled, the coupling element and the bracing element form together a closed contoured structure configured for bracing the longitudinal tubular segment in such a manner that the longitudinal axis of the clamping coupler extends parallel to a longitudinal axis of the tubular segment.
4. A clamping coupler according to any one of Claims 1 to 3, wherein the second locking port is configured as a recess.
5. A clamping coupler according to Claim 4, wherein the recess of the first port and the recess of the second port are substantially straight.
6. A clamping coupler according to Claim 5, wherein the recess of the first port and the recess of the second port are parallel to one another.
7. A clamping coupler according to Claim 6, wherein the recess of the first port and the recess of the second port are parallel to a longitudinal axis of the clamping coupler.
8. A clamping coupler according to Claim 7, wherein the entrance point of the first port and the entrance point of the second port face in the same axial direction.
9. A clamping coupler according to Claim 8, wherein insertion of the lug of the first end into the recess of the first port and a lug of the second end into the recess of the second port is facilitated by displacing them axially along a path parallel to the longitudinal axis of the clamping coupler.
10. A clamping coupler according to Claim 4, wherein the recess of the first port is arcuate.
11. A clamping coupler according to Claim 10, wherein the entrance point and the end point of the second port are coincident.
12. A clamping coupler according to Claim 11 , wherein the second end is hingedly attached at said second locking port.
13. A clamping coupler according to Claim 12, wherein insertion of the lug of the first end into the recess of the first port is facilitated by displacing it along an arcuate path.
14. A clamping coupler according to Claim 10, wherein the recess of the second port is arcuate.
15. A clamping coupler according to Claim 14, wherein the recess of the first port and the recess of the second port extend with their apex facing away from one another.
16. A clamping coupler according to Claim 14 or 15, wherein the entrance point of the first port and the entrance point of the second port face an opposite axial direction.
17. A clamping coupler according to Claim 16, wherein insertion of the lug of the first end into the recess of the first port and the lug of the second end into the recess of the second port is enabled by displacing them along an arcuate path.
18. A clamping coupler according to any one of the preceding claims, wherein the clamping coupler comprises at least one fastening element, attachable to said lug.
19. A clamping coupler according to Claim 18, wherein said fastening element having at least a fastened state, in which it is attached to said lug in such a manner that it fastens said bracing element to said coupling element, so as to clamp said longitudinal tubular segment therebetween, and a loose state, in which it is attached to said lug in such a manner that it allows the bracing element to move relative to the coupling element, while the longitudinal tubular segment is disposed therebetween.
20. A clamping coupler according to Claim 18 or 19, wherein the fastening element is a thread nut, attachable to a corresponding thread on said lug.
21. A clamping coupler according to any one of Claims 18 to 20, wherein the coupler comprises a second fastening element, attachable to a respective lug disposed at said second end.
22. A clamping coupler according to Claim 21, wherein the second lug is receivable by the second locking port.
23. A clamping coupler according to anyone of the preceding claims, wherein each one of the bracing element and the coupling element, or both, are U-shaped.
24. A clamping coupler according to any one of the preceding claims, wherein any one or both of the bracing element and the coupling element comprise one or more connecting arrangements.
25. A clamping coupler according to Claim 24, wherein the connecting arrangement is configured for receiving an additional pipe element, so as to allow flow intersection.
26. A clamping coupler according to any one of Claim 25, wherein the additional pipe element is a sprinkler.
27. A clamping coupler according to any one of the preceding claims, wherein the distance between the first end and the second end is constant and equal to the distance between the entrance point of the first port and the second port.
28. A method of coupling of a clamping coupler to a longitudinal tubular segment having a longitudinal axis, the method comprising the following steps:
a) providing a clamping coupler comprising a coupling element and a bracing element;
one of the bracing element and the coupling element is configured with a first end and a second end, and with a lug disposed at least at said first end, and the other one of said bracing element and said coupling element is configured with a first locking port and a second locking port configured for arresting said first end and second end, respectively, wherein at least the first locking port is a recess configured for receiving said lug;
each of the locking ports is configured with an entrance point and an end point, wherein at least the end point of the first port is different from its entrance point; and
wherein the distance between the entrance point of the first port and the second port is equal to the distance between the end point of the first port and the second port; b) positioning said bracing element and said coupling element in a preliminary state, in which they are at least partially detached from one another, with the tubular segment positioned therebetween, and with said lug facing the entrance point of the first port;
c) inserting said lug into the entrance point of the first port, and displacing the lug along a path extending between the entrance point and the end point of the first port;
d) before or after step c), attaching the fastening element to said lug in a loose state, in which it allows relative movement between the bracing element and the coupling element; and
e) fastening said fastening element to a fastened state, in which it is attached to said lug in such a manner that it fastens said bracing element to said coupling element, so as to clamp said tubular segment therebetween.
29. A method according to Claim 28, wherein the longitudinal tubular segment is a pipe segment.
30. A method according to Claim 28 or 29, wherein the clamping coupler is provided with such an arrangement so that when assembled, the coupling element and the bracing element form together a closed contoured structure configured for bracing the longitudinal tubular segment in such a manner that the longitudinal axis of the clamping coupler extends parallel to the longitudinal axis of the longitudinal tubular segment.
31. A method according to one of Claims 28 to 30, wherein the clamping coupler is provided with the second port being a recess.
32. A method according to Claim 31, wherein the clamping coupler is provided with the recess of the first port and the recess of the second port being parallel to one another and to a longitudinal axis of the clamping coupler, with the entrance point of the first port and the entrance point of the second port facing in the same axial direction.
33. A method according to Claim 32, wherein insertion of the lug of the first end into the recess of the first port and a lug of the second end into the recess of the second port is facilitated by displacing them axially along a path parallel to the longitudinal axis of the clamping coupler.
34. A method according to Claim 30, wherein the clamping coupler is provided with the recess of the first port being arcuate and the entrance point and the end point of the second port being coincident.
35. A method according to Claim 34, wherein insertion of the lug of the first end into the recess of the first port is facilitated by displacing it along an arcuate path.
36. A method according to Claim 31, wherein the clamping couplers is provided with the recess of the first port and the recess of the second port being arcuate and extend with their apex facing away from one another, with the entrance point of the first port and the entrance point of the second port facing an opposite axial direction.
37. A method according to Claim 36, wherein insertion of the lug of the first end into the recess of the first port and the lug of the second end into the recess of the second port is facilitated by displacing them along an arcuate path.
PCT/IL2014/050988 2013-11-14 2014-11-13 Branching-off pipe coupler WO2015071907A1 (en)

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IL229440 2013-11-14
IL22944013 2013-11-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024064069A1 (en) * 2022-09-19 2024-03-28 Tyco Fire Products Lp Systems and methods of fire protection pipe fittings

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362730A (en) 1965-06-07 1968-01-09 Victaulic Co Of America Side outlet coupling
US3967839A (en) * 1974-05-28 1976-07-06 Johns-Manville Corporation Pipe saddle assembly
FR2491163A1 (en) * 1980-09-30 1982-04-02 Caillau Ets Ring clamp for housed joint exhaust pipe - uses U=bolt with diverging legs and end stops together with complementary curved strap with side entry
US4552390A (en) * 1982-11-17 1985-11-12 Etablissements Caillau Clamp fitting for pipes
US5205022A (en) * 1992-06-09 1993-04-27 Norton John F U-bolt clamp assembly
DE9411013U1 (en) * 1994-06-20 1994-09-08 Preussag Ag Minimax Sprinkler clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362730A (en) 1965-06-07 1968-01-09 Victaulic Co Of America Side outlet coupling
US3967839A (en) * 1974-05-28 1976-07-06 Johns-Manville Corporation Pipe saddle assembly
FR2491163A1 (en) * 1980-09-30 1982-04-02 Caillau Ets Ring clamp for housed joint exhaust pipe - uses U=bolt with diverging legs and end stops together with complementary curved strap with side entry
US4552390A (en) * 1982-11-17 1985-11-12 Etablissements Caillau Clamp fitting for pipes
US5205022A (en) * 1992-06-09 1993-04-27 Norton John F U-bolt clamp assembly
DE9411013U1 (en) * 1994-06-20 1994-09-08 Preussag Ag Minimax Sprinkler clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024064069A1 (en) * 2022-09-19 2024-03-28 Tyco Fire Products Lp Systems and methods of fire protection pipe fittings

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