SE466468B - Clamping ring coupling for pipes - Google Patents

Abstract

Coupling for pipes, by means of which a pipe end is intended to be fastened in a sealed manner, which coupling comprises at least one ring intended to be slipped onto the pipe, a so-called body, which comprises a tubular portion which is externally threaded or equivalent and into which the pipe end is intended to be inserted and also which is arranged so as to constitute an outwardly widening seat for an externally essentially conically shaped ring portion, and a nut arranged so as to be slipped onto the pipe and also to interact with said body, mutual axial displacement between the nut and the body being intended to bring about a reduction of the inner diameter of at least one/some ring portion(s) and thus sealing contact between the pipe and the ring portion(s). The coupling is characterized in particular in that a first ring 7 is present, which first ring 7 is externally essentially conically shaped and in this connection tapers towards one 7' of its ends for interaction with the seat 4' of said body 4, which seat 4' in this connection has a widening shape corresponding essentially to the conical shape of the ring 7 and is arranged so also as to fit a so-called cutting ring, and which first ring 7 at its other end 7'', in a manner essentially known per se, widens internally so that an internal bevelling 7''' is formed, and in that a second ring 8 is present, which is essentially symmetrical about a plane at right angles to the axial direction of the ring 8 and comprises a bevelled portion 8' at each end 8'' for interaction with said internal bevelling 7''' of the first ring 7 or with a, preferably corresponding, internal bevelling 9' of said nut 9. <IMAGE>

Description

466 468 2 atldra benefits compared down known. technique.

The invention thus relates to a clutch coupling for pipes, in which, unlike a cutting ring coupling, where by means of a ring a sharp in a tube is intended to be provided, an axially extended and in The continuous pressure pressure of a pipe is intended to be achieved and by means of which a pipe end is intended to be sealed, which coupling comprises two rings, intended to be completely applied to the tube, a so-called body, which comprises a tubular portion, which is externally threaded or corresponding and in which is intended to be introduced and which is arranged to constitute an outwardly widening seat for an external substantially conically shaped ring portion comprised of one of said rings, and a nut arranged to be applied to the tube and to cooperate with said body, wherein by mutual axial displacement between nuts and body a reduction of the inner diameter of at least some ring portion (s) and thereby sealing abutment between pipe and ring portion (s) is intended to be accomplished through rxänuwda axially distributed and circumferentially continuous The coupling is particularly distinguished by the fact that the coupling comprises a first which, in a manner known per se, is internally substantially cylindrical. drisk, substantially conical down one tapering towards one end conical shape substantially Corresponding to the said widening shape as well at its other end internally widening, so that an internal fasnirxg prefabricated trained, and partly a second ring, at each end including one beveled portion for cooperating with said phasing of the first the ring and a corresponding internal bevel of said nut, which the second ring is substantially syrmnetislc lming a plane perpendicular to the ring 'axiellarilctnilig ochavattnäinndaloroppxrtgörsavenförenslcskär- ringskqplizxg intended body of standard design, where the seat widens form is of a definite comic kind with a cork vortex of 24 °, and of, that rmänmda mrtter consists of one for a intended nut of mounted design.

Below Iippfiimizigen is described in more detail in connection with the attached drawing, there Fig. 1 shows a schematic diagram of a first embodiment of a coupling according to * the invention seen in its axial direction and in two radial sections, where the germ section removed portion corresponds to a center gear essential: mimre than 1ao °. 466 468 - 3 Fig. 2 shows a first embodiment of a second ring according to Iippfirmirxgen seen in its axial direction. Fig. 3 shows the ring according to Fig. 2 seen from the left or right in Fig. 2. Fig. 4 shows a first embodiment of a first ring according to Ilpgafinnirxgen seddsanrmgenerxlfig2, as well - fig5visarrir1genenlfig4seddfrånvänsterifig4.

Ifiglbeteolmasettrör, suchetethydraullörförhögwycksärxdaxrål, Which pipe country 2 is set to be attached to and attached to it for example, an instrument, not shown. 3 denotes one of the couplings included so-called loop opening, which comprises a tubular portion 4, which is externally fermented or responds to the oocillivillcetrörärxien2 äravseddatt introduced, against a stopping bottom ledge 5, and which is arranged to form an outwardly widening seat 4 'for a substantial lorxically shaped portion 6 of a first ring included in the coupling 7.With8betedansenavkopplmgenhmefattadarñraringod1ræd9betedcns enmrtterarnrdrndattpåförasröretlsamtattsanwerkanednänndakropp 3, axial displacement betweenmrtter9ochlccsgp3 said rings are intended to be actuated to a closer abutment between tubes 1 ochri.ngar7, 8.Ringarna7, 8äravsaddaattpåförasröret1vidänden2, The sequence is shown in FIG.

Said first ring 7 is internally substantially cylindrical and externally essentially conicalfonnadoclihirvidlnotsinernaär fl e fl srnalnaradeför the interaction seat 4 'hoskropperxfi. The seat4 'harhärwridensigvidganie shape substantially the conical shape of the ring 7 and arranged therewith attpassaävenenslcärrirng. Nämndaförstaring7ärvidsinandraärxie7 " widening so that an internal bevel 7 "'is formed. m ám fi aarñrarülg8ärihuwñsaksymetrisklmíngettplanvir fl šelrättmot the axial direction of the ring 8 comprises a rectangular facet portion 8 ' VARVARÄIDES " ringen7eller1neden, Inotsvaraxwde, invänrlig fasnirrg 9 'hos nänuñaImICterQ.

Föredmgetärattåminstonedmförstarügerß7konislcafom fl mcçpa ° s4 seat 4 ', to which the seat fitting cutter is placed before the seat is shown made in accordance with the nominal purpose determined, sâscmnm 2353. 466 468 - The first ring 7 is substantially conically shaped with a cone angle v of cza 22 - 26 °, preferably substantially 24 °.

The function of the coupling according to Ixppfinnirxgen should have been significantly impaired above. One and the same, according to norm designed body 4, -can thus be used either for collaboration with a conforming standard designed or with acc Ippppfirmiiægen designed rings 7, 8, where the first ring 7 can be said constitute one ki1ri: ng and the other 8 a Through the phases 7 "', 8', 9 'and the conically shaped portions 7', 4 'are achieved favorable' pressure advantage and controllable plastic deformation when the lute 9 is threaded on the portion 4.

Due to the symmetrical shape of the second ring arm 8, incorrect mounting cannot take place.

As should be deduced from the above, the arrangement according to uippfizmixxgen offers essential benefits of the past Through the double - The comfort of the body and nut greatly reduces the need for bearing holes noticeable. The connection has also proved to be extremely appealing The tip film film gene has been described above in connection with essentially an embodiment form. Of course, more embodiments and minor changes are conceivable without being therefore abandoned.

Thus, the Iippfinrlingen can be applied to a number of pipe dimensions what refers to the outer diameter and outer diameters / inner diameters of the ratios. The coupling is specially linked for thin-walled The coupling is milled intended for used in connection with aggressive media and thereby performed by acid solid 'steel and for pipes of acid-resistant material. Of course, significantly further can application Furthermore, angular alarms of respective phases 7 "', 8', 9 'and conical shapes 4', 7 'is varied.

Claims (2)

466 468 ”- Patent claim A clearance conduit for pipes, in the case of a winch, in contrast to a pipe coupling, thereby means a pipe coupling is provided to provide an axially extended and circumferential impression of a pipe which is intended to be provided by means of a coupling. , intended to be completely applied to the pipe, a so-called body, which comprises a portion, which is threaded or un-equivalent and in which is intended to And which is arranged to form an outwardly widening seat for an externally substantially conically shaped ring portion comprised of single-membered rings, and which is arranged to be applied tubularly cooperating with the corresponding body, wherein axial displacement between nut and body a reduction of the inner diaphragm of at least some ring portion (s) and thereby sealing abutment between tube and ring portion (s) is intended to be effected by said axially extended and circumferential circumferential circumference characterized by, enclosing, comprises on the one hand a first ring (7), which, in a manner known per se, is internally substantially cylindrical, externally substantially conical with a conical shape tapering towards one end (7 ') substantially corresponding to said seat widening and at its the other end (7 ") widens, so that an internal phased groove (7" ') is formed, and on the other hand a second ring (8), at each end (8 ") comprising a beveled portion (8 ') for co-operation with the inner feenmg (vw) nde the lead ring (v) and a nntsvareride internal phased nanuadannzter (9), respectively ring (a) is essentially synuneuisl: around a plane perpendicular to the axial direction of the ring (8), ochavattnänmdalmopp (3) Lrtgörsavenförenskslärrüugskoga- 'ling intended body of standard design, the seat (4') widening shape is of a certain conical type with a 24x °, and by the fact that nänuida mrtter (9) consists of a nut intended for a slärrirxgskopplirxg of standard design. Coupling according to claim 1, characterized in that the first ring (7) is substantially coaxial and radially below the cell (v) of 24 °.