DE2163218A1 - Coupling for coupling large diameter pipe parts - Google Patents

Description

PLEHO ?! & SOF LIMÜPEP, Hewbury / England Coupling for coupling large diameter pipe parts

The invention "relates to pipe couplings and particularly, but not exclusively »to the connection of fuel oil hoses to ships for bunkering.

This object is achieved aioh from the rapid circulation of d # r vessels, the high Jließgeschwindigkeiten and pipes with large diameters and also a minimum delay required during coupling and uncoupling.

Heretofore, the connection has often been made by screwing standard flanges together at the ends of the successive hoses, but this type of coupling is bare and time consuming. The task is particularly acute in the case of hoses with relatively large diameters, for example 15 and 20 cm (6 "and 8"), where a coupling proposed so far has a weight of more than 90 kg.

A pipe coupling according to the invention, which facilitates this task, contains an expandable clamping ring for connection to a pipe to be coupled and sprays into the end of the other pipe, the outer end of the clamping ring being provided with one or more n & oh outward-pointing projections which, when the dfff clamping ring is stretched, with one or more

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speaking protrusions that intervene are on the inner surface of the other pipe part and expand or contract or a contraction allow to couple the clamping ring with it or to uncouple it from it.

In one embodiment of the .Erfindung the clamping ring is made of several resilient individual tube parts made of relatively elastic material, in which several slots are cut from one end over part of their length, which result in teeth that counter the bias caused by the elastic material can be stretched on the outside. The means for stretching the clamping ring may include a ring or a sleeve, the or · which is located in the ring and an area of larger diameter from the outer end inwardly fine at least a portion or · its length and means for relative AxiaTbewegung of in a conventional manner Has clamping ring and ring. This movement can take place by connecting the clamping ring to the pipe section by means of an external thread which engages with an internal thread on the ring which is rotatably mounted on the pipe section in a housing which holds it against axial rotation. The twisting of the ring then causes the axial twisting of the clamping ring

In another embodiment according to the invention, the clamping ring consists of several partial cylinder segments, which are held in their correct positions by a band spring surrounding the clamping ring, around the segments to keep in contact with a ring or a sleeve in the clamping ring. This sleeve usually contains the means for stretching the clamping ring by an amount of greater diameter for at least a portion of it Length from the outer end to the inside. There are

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further means are provided which cause a relative movement of the clamping ring and the entrance. This movement can usually be done by means of an arrangement in which protrusions or flanges are located on the inner ends of the clamping ring segments "are located by an axial moveable flange ring are held loosely so that the segments can move in a small arc. The ring has a thread on its outer surface, which cooperates with an internal thread on the outer ring in the pipe section, which is held against axial movement is, but can be rotated by a pawl, so that by pressing the pawl, the external ring nut is rotated and moves the internal ring nut and the clamping ring axially.

The two execution examples of pipe couplings are described with the help of the drawings. In these is:

Figure 1 is a cross section of a first coupling, wherein the upper half of the section shows the coupling in its disengaged condition;

FIG. 2 shows a side view of the coupling according to FIG. 1;

Figure 3 is a section through the diameter of the clamping ring arrangement another form of coupling;

Figure 4- is a side view of the clamping ring assembly according to FIG Figure 3;

FIG. 5 shows a section of the coupling according to FIG. 3 in use, the teeth of the clamping ring are in the singular engagement position, the upper half the figure shows a clamping ring assembly for a pipe of large diameter and the lower half of the same Coupling with a clamping ring assembly for shows a smaller diameter drill; and

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Figure 6 is an end view of the coupling of Figure 3

The coupling according to Figure 1 contains a clamping ring 2, which is provided with several projecting fingers 4 made of elastic material. The body of the Klemin ring is connected to a piece of fuel hose 6 via a body ring 8. The body ring 8 is with the outer surface of the hanging body screwed at 1o and into the pipe section wall in a housing at the outer end of the The hose pipe section is held so that it can rotate and consists of a member 12.

P The outer ends of the fingers 4 · are dimensioned so that they protrude into the open outer end of the pipe length 14 which is held by the ship to which the fuel is attached is to be delivered and with which the pipe section 6 is connected is. The end of each finger is provided with an outwardly facing projection 16 which is connected to the Inner surface of a corresponding projection 13 in engagement comes, which is screwed by a fitting ring 2o at 22 to the flange at the outer end of the pipe section 14 is. (The projection 18 can also form a whole with the wall of the pipe section 14.)

fe a ring 24 connected to the body ring 8, is located in the ring of the fingers 4 of the clamping ring, and its outer end is flat at 26 corresponding to that extending surface 28 on the inner surface of the end of the fingers 4 is flattened. The matchmaker is between his open position, as can be seen in the lower half of Figure 1, and in the coupling position, as they can be seen in the upper half of Figure 1, by moving the clamping ring relative to the ring 24 inward operated so that the fingers run over the ring, which rotates them outwards to the position in which the front

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Cracks 16 engage behind the edge 18 of the fitting ring 2o. A disengagement takes place in the same way that the fingers in the longitudinal direction relative to the Ring are moved outward until the surface 28 of the ring is free, whereupon the fingers due to their elasticity get radially inwards.

The clamping ring is moved by rotating the ring 8, which is provided with teeth 3o on its outer surface, in which engages a pinion 32, which is located in a notch is located in the link 12 and is driven via a shaft 34 by a latch handle 36.

If the projections of the teeth engage the fitting ring during coupling, they are by moving the ring 8 tightly pulled together by the handle 36 and sealed by a ring 38 that extends between the The fitting ring and the link 12 are located.

Another embodiment of the invention is shown in FIGS. 3 to 6. There the clamping ring has eight segment sections 4o, five of which can be seen in FIG. The top and bottom segments are there shown in section. Each segment has a flange 42 at its inner end and a flange 42 at its outer JDnde a tooth-like part 44. The outer part of each The tooth is provided with a projection 46 so that the projections 42 and 46 are in the assembled clamping ring are annular, the outer part of each tooth carries 4o furthermore, on an inner surface, a pointed region 48 which is located on an inner projection 5o.

The clamping ring segments 4o are in their correct position by a band spring 52 surrounding it (FIG. 5) and by a sleeve 54, which the inner end of the clamping

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ring surrounds, and a part 56, which runs in the clamping ring, held together so that its splash 42 is held in the sleeve 54. The outer surface of the sleeve 54 has threads that mate with threads on the inner surface a ring 58 attacks. The ring 58 will rotatably held in a cutout in the pipe wall of a housing, which is at the outer end of the hose pipe section is located and is formed by a member 6o. The outer surface of the ring 58 is provided with teeth 62 provided that engage a pinion 64 in a cutout of the member 6o and through a shaft 66 a latch handle 68 are driven. The outer ends of the clamping ring teeth 4o are dimensioned so that they protrude into the open end of a pipe 7o, which is located on the ship to be delivered. The after outwardly facing projection 46 of each tooth is used to engage the inner surface of a corresponding projection 72, by a fitting ring 74- at 76 with the Splash is screwed 7 ° at the outer end of the pipe part. (The projections 72 can also be connected to the wall of the pipe section form a whole.)

Has a ring 78 in the ring of teeth 4o of the clamping ring one end flattened at 8o that of the flattened surface 48 on the inside of the end of the teeth 4o is equivalent to. The ring 78 is held by end links 82, which extend outward between the teeth4o of the clamping ring and with an outer ring member 84 are connected, which is adapted to the outer end of the link 6o of the coupling body. Prevent limbs 82 also a twisting of the clamping ring in the coupling. The coupling according to FIG. 5 is in the working position shown, in which the teeth 4o of the clamping ring are spread outwardly by the ring 78 so that they are attached to the

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Attack projection 72 of a fitting ring 74 «, In this In position, the pipe part 7o and the coupling are firmly connected. To release the clutch, the Handle 68 actuated so that ring 58 rotates and thus the clamping ring moves in the axial direction towards the pipe section 7o. Since the teeth 4o of the clamping ring are biased inwardly by the band spring and are loosely held by the flange ring 54- can become the teeth move in a small arc and thus the clamping ring contracts when the flattened Parts 48 of the ends of the teeth pass over the corresponding flat parts 8o of the outer end of the ring 78. The coupling can then be pulled off the pipe part 8o.

Similarly, when the coupling is attached to the ear part, the lever 68 is actuated so that the clamping ring is pulled into the interior of the coupling, then the flattened ends 48 of the clamping ring teeth over the projection 78 of the ring and thus spread outwards v / ground so that it fits to the projection 72 ^ he adapter 7 ^ - attack. Another twist of the Ring 58 through handle 68 pulls the pipe section ends firmly together and sealed by a ring 86 located between ring 74 and member 84.

By replacing the clamping ring and associated ring 78 and member 84 (or ring 24 and of the member 12 in the example of Figure 1), the coupling for coupling pipe parts of other diameters can be used, e.g. as shown in the lower part of Figure 9 (or Figure 1), a 20 cm hose pipe section can be used be coupled with a 15 cm pipe connection. Figure 6 shows the arrangement of 15 cm and 20 cm (6 "and 8") clamping ring accessories in side view with

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various safety and protection devices to improve the functioning of the mechanism. To the annular inner projection "is a protective cover 88, which when uncoupling by inserting the Clamping ring teeth in it and for operating the mechanism * The annular surface 9o of the lid then fits tightly onto the sealing ring 68 of the outer annular member 84 of the coupling accessory.

A safety locking pin 92 can be inserted into the hole 94 drilled transversely in the shaft 66 of the ratchet mechanism 66 be used to prevent movement when in use, and on the outer edge of the limb 82 ^ there are tongues 96, which inwardly behind the ■ projections 46 of the clamping ring teeth run to prevent the assembly from shaking during the transition will. Typically, the ferrule accessories are held in the coupling by hook members 98, which act around the projection 1oo on the annular outer member 84.

The coupling according to the invention can be used for coupling Pipe parts are used and is not intended for the coupling of large diameter fuel hoses limited.

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Claims (1)

Sr 24941 PLENTY & SON LIMITED, Newbury - England Claims QiJ coupling of pipe parts of large diameter, marked by means of an expandable clamping ring (2 or 4o) for connecting one of the pipe parts to be coupled (6), which protrudes into the end of the other pipe part (Ί4), wherein the outer end of the clamping ring (2 or 4o) with one or more outwardly facing projections (16 or 46) is provided on the inner surface of the other pipe part (14) and means for Stretching and contracting or allowing the clamping ring to contract (2 or 4o) for coupling or uncoupling is provided. 2o coupling according to claim 1, characterized daduroh, that the expandable clamping ring contains a single tubular member (2) with several elastic Teeth (4) is provided against the preload given by the elasticity of the material of the teeth can be stretched outwards. 3. Coupling according to claim 1, characterized in that there are several partially cylindrical in the clamping ring (4o) Segments are located, the teeth (44) which are held together by a band spring (52), and that a sleeve (54) with an annular cut is provided on one side in which the inner ends of the Clamping ring segments (4o) are held loosely, the arrangement being such that the clamping ring (4o) against the bias of the ribbon spring (52) can be stretched so that the inner ends of the segments are calibrated in can move this incision. 209828/0684 4. Coupling after. Claim 2 or 3, characterized in that that the means for expanding the clamping ring (2 or 4o) contain a sleeve (24 or 78) which is located in the clamping ring and has a surface (26 or 8o) of larger diameter from the outer end inwards for at least part of its length, and that means for relative movement of the clamping ring (2 or 4o) and sleeve (24 or 78) is provided. 5. Coupling according to claim. 4, characterized in that that the outer ends of the clamping ring teeth (4 or 44) have inwardly flattened projections (28 or 48), which go over the surface of the sleeve (24 or 78) " 6. Coupling according to one of claims 4, 5 or 6, characterized in that the device for the relative Movement of the. Clamping ring (2 or 4o) and the sleeve (24 or 78) contains a Hing (8 or 58) on the Pipe part (6) is rotatable, and an internal thread on the Hing and an external thread on the clamping ring (2 or 4o) are provided and a stop prevents rotation of the clamping ring, so that rotation of the internal thread ring (8 or 58) causes the clamping ring to move axially. 7 · Coupling according to claim 6, characterized in that The stop contains ribs that extend from the housing of the clutch run radially inward and. where between the teeth (4 or 44) of the clamping ring and this is the expansion sleeve (24 or 78). 8. Coupling according to claim 6 or 7 »daduroh characterized in that the internal threaded ring (8 or 78) on his Outer surface (3o or 62) has teeth, Comb pinion (32 or 64) whose well < passes through a seal in the wall of the ki (12 or 6o). Dipl. 209828/0604