DE1625945C - Pipe connection for pipes especially provided with a protective layer - Google Patents

Description

occurring tensile forces due to the axial support of the shoulders ?, 11 by means of the connecting ring 14 and transmitted.

According to FIG. 2, the end sections 15 of two pipes 16 provided with a protective layer 1 abut with the inclusion of a sealing cuff 13 'butt to one another. On the outer surface 9 'of each of the Insertion ends 15 are provided with a shoulder ring 10 'with circular shoulders'. The shoulder rings 10 'also serve together as a stop for the sealing collar 13', by means of which the Pipes 16 are centered on each other, and which at the same time represents the insulation of the joint. The plugging ends 15 are shared by a sleeve sleeve, here also provided with a protective layer 1 17 includes, on its inner surface 5 'shoulder rings 6 'with shoulders 7'. In that by the radial distance between the inner surface 5 'and the outer surface 9 'existing socket cavity, a connecting ring 14' is arranged.

According to FIG. 3 engages a coated with a protective layer 1 pipe 18 α with a tapered insertion end 19, on the outer surface 9 "of a shoulder ring 10" with a shoulder 11 "is arranged, with the inclusion of a sealing collar 13" in a socket section 20 of a pipe 18 b to The sealing sleeve 13 ″ rests against a stop ring 21. The sealing sleeve 13 ″ simultaneously centers the pipes 18 ″ and ISb with respect to one another. It also represents the insulation of the joint from the inside of the pipe. A shoulder ring 6 "with a shoulder 7" is attached to the inner surface 5 "of the end section 20. On" the inner surface 5 "or the shoulder 7" and on the

ίο Outer surface 9 "or in the shoulder 11" are cams 22 and 23 arranged, the direction of rotation of which supporting surfaces 24 and 25 for receiving and Transfer of torsional forces are used, which - like other forces - are essentially zwisehen the inner surface 5 "and the outer surface 9" by introducing a material in a flowable State produced connecting ring 14 "are conveyed.

The connecting rings 14, 14 ', 14 "can be made of

ao a highly pressure-resistant reactive plastic on a 2-component basis exist, the filler can be added, or a highly pressure-resistant reactive plastic of two or more components and optionally additives, these components under Vacuum can be mixed.

1 sheet of drawings

Claims (1)

1 2 stands. Similar dangers also arise with the Claim: Embodiments according to FIGS. 5 and 6 of the British Patent specification 170 367. The known version is Pipe connection for one of these pipes, in particular with one of this risk provided by the arrangement of a protective layer on the outside, which counteracted the large tensile socket end reinforcement 5 seen, are subject to stresses in which their effect, however, necessarily on the socket end socket section at the end of one pipe remains limited, while the conically inwardly the plug-in end of the adjoining pipe with running unreinforced socket wall which engages over radial play or which is exposed to butt to the pressure force without protection.
butting spigot ends of both pipes io The invention solves this problem in a different way by a slip-on sleeve with radial play while avoiding the action of are encompassed, the between the insertion compressive forces on the socket wall, namely thereby, ends or the spigot ends and the socket - That the sleeve cavity is cylindrical and the section or the slip sleeve remaining in diameter reduced or enlarged sleeve cavity, in which at one end an in 15 end sections of the sleeve or the plug-in pipe diameter reduced end section of the sleeve by shoulder rings at right angles to the pipe axis and on at the other end a shoulders standing in diameter are formed,
Enlarged, through the socket end section, the German patent specification 884 086 shows, although the end section of the plug-in casting compound-filled ring grooves are provided at right angles to the pipe, with a hardenable, pipe axis standing shoulders; However, since the pressure-resistant and practically shrinkage-free synthetic conception of this design does not fill the material and pose the problem of socket expansion in relation to the inside of the pipe, it cannot be sealed in the context of an elastic seal arranged on the joint surface of the plug-in pipe. the axially in front of the enlarged diameter 25. The invention is shown in the drawing, for example End portion of the insert tube is shown thereby. It shows characterized in that the socket cavity Fig. 1 is a pipe connection in which the socket is cylindrical and the diameter section of a pipe is the insertion end of an adjacent overlaps smaller or enlarged end sections of the closing pipe, Sleeve or the plug-in pipe through shoulder 30 F i g. 2 a pipe connection in which the plug-in • Rings (6, 6 ', 10, 10') with a sleeve at right angles to the pipe ends of two pipes axially standing shoulders (7, 7 ', 11, 11') are formed, and are. F i g. 3 a pipe connection in which a tapered End section of a pipe into an end section 35 engages a subsequent pipe. According to Fig. 1 is on one on its inner surface - except for a piece of the outer surface - with a protective layer 1 coated pipe 2 α on its The invention relates to a pipe connection nem one end via a conical widening 3 with a sleeve section 4, in particular provided with a protective layer 40, the inner surface 5 having a shoulder ring 6 with a, in one, on its pipes, which are subjected to great tensile loads which has a socket section at the end of the plane perpendicular to the pipe axis, circular pipe, the insertion end of the adjoining annular shoulder 7. In the socket-pipe overlaps with radial play or the butt section 4 engages with its plug-in end 8 an abutting plug-in ends of both pipes 45 closing, provided with a protective layer 1 by a sleeve with radial play around pipe 2 b - the one on its other, are not further summarized, wherein the between the male end or the end shown like the tube 2 α formed the male end and the socket portion or can be -. On the outer surface 9 of the sleeve cavity end 8, there is a shoulder ring 10 with a circularly smaller end section of the sleeve located in a plane perpendicular to the one at one end with a diameter perpendicular to the pipe axis and on the other a shaped shoulder 11. A sealing sleeve 13, which is provided in a section of the stretching tube and is also supported against the shoulder ring 10, is seated on the ab end of an enlarged end face 8 of the tube 2 b or the socket end section, which is enlarged in diameter. The one curable, pressure-resistant and practically 55 sealing sleeve 13 serves as a guide against shrinkage-free plastic and is filled against the inner surface of the conical enlargement 3 and the inside of the pipe by an elastic seal arranged on the joint surface of the insert pipe for mutual centering of the pipes la and Ib as well as as the end of which is sealed between the inside which lies axially in front of the diameter surface 5 of the hollow section 4 and the outer, larger end section of the plug-in tube. 60 surface 9 of the insertion end 8 through their radial Hui of a known embodiment of this type of spacing from each other existing socket cavity (Austrian patent specification 216 296) are in and finally to isolate the joint of the diameter reduced or enlarged F.iul- two pipes la and Ib opposite the pipe sections through Mulle or the pipe through continuous inner ones. In the Mulfenhohlraum is running through Einicrlich conical constrictions and 65 bring a material in a flowable state Aiifwcitiingeii formed so that a conical Upward produced Vurbindungsiing 14 is disposed, is formed by the Miilfcnhohlrauin, wherein in gmller to the tubes Ia and Ib fixed interconnected tensile load the CJufahr der MiiffciKiiifwutiinj; are and duitli the on this pipe connection