DK157149B - SHIFT PROTECTION FOR CONNECTING FRUITS - Google Patents
SHIFT PROTECTION FOR CONNECTING FRUITS Download PDFInfo
- Publication number
- DK157149B DK157149B DK350081A DK350081A DK157149B DK 157149 B DK157149 B DK 157149B DK 350081 A DK350081 A DK 350081A DK 350081 A DK350081 A DK 350081A DK 157149 B DK157149 B DK 157149B
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- DK
- Denmark
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- clamping
- segments
- ring
- retaining
- tooth
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Classifications
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- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Joints With Sleeves (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
- External Artificial Organs (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
DK 157149 BDK 157149 B
Ved r0r af st0bejern eller duktile r0r, navnlig muffetrykr0r, an-vendes forskydningssikringer af st0bejern eller duktile forskydningssikringer, der sikrer den i det ene r0rs muffe indskudte ende af det andet r0r mod udtrækning af muffen. Disse forskydningssikringer har 5 en klemmering, der ait efter st0rrelsen af r0rdiameteren er opdelt i to eller flere klemmeringsegmenter, der giver om den i muffen indskudte r0rende. Endvidere har forskydnîngssikrïngerne en holdedel, der griber bag om en del af muffen, f.eks. bag om en ringformet krave eller bag om knaster, der rager ud fra muffens yderside eller eventuelt bag om den koniske muffehalvdel, der danner overgangen fra muffen til r0ret. Holdedelen kan besta af enkelte, kloformet udformede holde-knaster eller af en holdering, der er opdelt i mindst to holderingseg-menter. Holdeknasterne eller holderingsegmenterne er forbundne med klemmeringsegmenterne ved hjælp af forbïndelseslasker, der tjener som 15 trækankre. Hvert klemmeringsegment og ved anvendelsen af en holdering ogsa hvert holderingsegment er ved begge dets ender forsynet med spændelasker til optagelse af skruer, hvormed segmenterne sammen-spændes. I klemmeringens sammenspændte stilling befinder spændelas-kerne sig stadig i en afstand fra hinanden.In cast iron or ductile pipe, in particular sleeve pipe, cast iron or ductile shear fuses are used which secure the end of the pipe inserted in one pipe socket against the sleeve. These shear fuses have a clamping ring which, according to the size of the pipe diameter, is divided into two or more clamping segments which provide for the pipe inserted into the socket. Furthermore, the displacement safeguards have a holding portion which grips a portion of the sleeve, e.g. behind an annular collar or behind lugs projecting from the outside of the sleeve or possibly behind the tapered sleeve half forming the transition from the sleeve to the tube. The holding member may consist of single, claw-shaped holding lugs or of a holder divided into at least two holding segments. The holding lugs or holding segments are connected to the clamping segments by connecting lugs which serve as 15 wooden anchors. Each clamping segment and the use of a retaining ring also each retaining segment is provided at both ends of it with clamping lugs for receiving screws with which the segments are clamped together. In the clamped position of the clamping ring, the clamping lugs are still at a distance from each other.
20 Den forskydnings- eller trækkraft, som kan optages af forskydnings- sikringen og overf0res til forbindelsesmuffen, afhænger ikke blot af den klemmekraft, med hvilken klemmeringen ved hjælp af skruerne i spændelaskerne trykkes ind mod rprenden, men ogsâ af friktionen eller grebet mellem klemmeringen og r0renden. Man har derfor ved 25 forskellige foranstaltninger ved udformningen af den mod ydersiden af r0renden liggende ïnderflade af klemmeringen for0get klemmeringens greb om r0renden. Man har sâledes f.eks. forsynet klemmeringen med en grovkornet inderflade eller opruet inderfladen eller forsynet den med en profilering, f.eks. ï form af en filtandformet fortanding eller 30 en fortanding med opretstâende tænder, saledes at fortandingens tæn der kunne trænge ind i r0rendens overflade. Sadanne fortandinger tilvejebringes ved, at klemmeringsegmenterne f.eks. st0bes med en fortanding eller ved særskilt fremstilling af indlæg eller indsatse, der har en sâdan fortandet flade, og som indsættes i klemmeringsegmenterne.The shear or tensile force that can be absorbed by the shear fuse and transferred to the connector sleeve depends not only on the clamping force with which the clamping ring is pressed against the ridge by means of the screws in the clamping lugs, but also on the friction or grip between the clamping ring and the ridge. . Therefore, by the 25 different measures in the design of the inner surface of the pipe end of the clamping ring, the grip of the clamping ring on the pipe end has been increased. Thus, for example. provided the clamping ring with a coarse-grained inner surface or roughened inner surface or provided with a profiling, e.g. in the form of a felt-toothed tooth, or a tooth with upright teeth, so that the teeth of the tooth could penetrate the surface of the pipe. Such toothings are provided by the clamping segments e.g. is cast with a tooth or by separate manufacture of inserts or inserts having such a toothed surface and inserted into the clamping segments.
35 Nir der derfor i det fplgende taies om klemmeringens inderflade eller dens fortanding, skal der herunder ogsa forstas klemmeringe med indlæg eller indsatse.35 Therefore, in the following, as to the inner surface of the clamping ring or its tooth, it must also be understood here that clamping rings with insert or insert.
Den forskydningskraft, som forskydningssikringerne kan optage pi grund af de nævnte foranstaltninger, uden at r0renden trækkes 2The shear force that the shear fuses can absorb due to the aforementioned measures, without pulling the pipe 2
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gennem klemmeringen, afhænger ogsa af st0rrelsen af den del af klem-meringens inderflade, der trykkes sa kraftigt mod overfladen af r0r-enden, at de nævnte foranstaltninger kan fa maksimal virkning, f.eks. ved at fortandingen trænger ind i r0rendens overflade. De af st0be-5 jern eller duktîlt st0be]ern fremstillede r0r har tolerancer i den ud-vendige r0rdiameter og afviger fra et n0jagtigt cirkulært tværsnit. For ogsa ved urunde r0r og forskellige r0rdiametre at opna, at klemme-ringen trykkes mod r0renden med hele sin indvendige omkreds, har man udformet klemmeringsegmenterne med en sâdan krumning, at -jO deres krumningsradius var st0rre end r0renes st0rste krumningsradius, og endvïdere har man ved hjælp af afbrydelser opdelt klemmeringseg-menternes inderflader i flere sektorformede trykflader og saledes udformet klemmeringsegmenterne med b0jningssteder ved de mellem de sektorformede trykflader beliggende afbrydelser. Pa denne made Ί5 opnas, at den midterst beliggende trykflade af hvert klemmering-segment f0rst kommer til anlæg mod overfladen af r0renden ved sam-menspændingen af klemmeringen. Sa snart den 0nskede anlægskraft er opnaet ved disse trykflader, optræder der ved den fortsatte spænding af skruerne en bpjnîng af klemmeringsegmenterne i de pa 20 hver sin side af den mïdterste trykflade beliggende b0jningssteder, saledes at de tilst0dende trykflader trækkes ind mod r0roverfladen og trykkes mod r0renden. Pâ denne mâde trækkes aile de sektorformede trykflader efter hinanden indtil anlæg mod overfladen af r0roverfladen, saledes at der ogsa ved urunde r0r og forskellige r0rdiametre fas et 25 optimalt anlægstryk for klemmeringen over hele dennes omkreds.through the clamping ring, also depends on the size of the part of the clamping inner surface which is pressed so strongly against the surface of the pipe end that the said measures can have maximum effect, e.g. in that the tooth penetrates into the surface of the pipe gutter. The tubes made of cast iron or ductile castings have tolerances in the outside pipe diameter and deviate from an exact circular cross section. In order to also obtain, by rounding tubes and different pipe diameters, that the clamping ring is pressed against the pipe end with its entire inner circumference, the clamping segments have been designed with such a curvature that their radius of curvature was larger than the greatest radius of curvature and by means of interruptions, the inner surfaces of the clamping segments are divided into several sector-shaped pressure faces and thus the clamping segments are formed with bending points at the breaks located between the sector-shaped pressure faces. In this way Ί5, it is assumed that the middle pressure surface of each clamping ring segment first comes into contact with the surface of the pipe end at the clamping of the clamping ring. As soon as the desired abutment force is obtained at these pressure faces, at the continued tensioning of the screws, an opening of the clamping segments in the bending locations located on either side of the middle pressure face occurs, so that the adjacent pressure faces are drawn towards the tube surface and pressed against it. . In this way, all the sector-shaped pressure faces are drawn one after the other until abutment against the surface of the pipe surface, so that even at rounded pipes and different pipe diameters, an optimal abutment pressure is applied for the clamping ring over its entire circumference.
I stedet for muffetrykr0r af st0bejern anvendes ogsa formstofr0r til samme anvendelsesformal. De allerede beskrevne st0be]ernsforskyd-ningssikringer til stpbte r0r kan imidlertid ikke anvendes til formstof-r0r. De urundheder og forholdsvis store diametertolerancer, der som 30 nævnt optræder ved stpbte r0r, optræder ganske vist ikke ved formstof-r0r, der besidder en meget stor mlln0jagtighed. I modsætning til de b0jnîngsstive st0bejernsr0r er formstofr0r imidlertid deformérbare i en sadan grad, at der ved sammenspændingen af klemmeringen kan optræde en deformering eller endog en 0delæggelse af r0renden. Det 35 er derfor ikke muligt ved sammenspændingen af klemmeringen at b0je klemmeringsegmenterne ind mod overfladen af r0renden pa den foran beskrevne made for at opnâ, at klemmeringsegmenterne over deres fulde længde trykkes ind mod r0roverfladen og fortandingen îndgriber med r0roverfladen. Da klemmeringsegmenterne ved de kendte 3Instead of cast iron pipe sleeves, plastic pipes are also used for the same application formula. However, the cast iron shear fuses already described for molded tubes cannot be used for plastic tubes. Admittedly, the rounds and relatively large diameter tolerances which occur, as mentioned, in molded tubes do not occur in plastic tubes which have a very high accuracy. However, unlike the bending rigid cast-iron pipes, mold pipes are deformable to such an extent that, when the clamping ring is tightened, a deformation or even destruction of the pipe end may occur. Therefore, by clamping the clamping ring, it is not possible to bend the clamping segments towards the surface of the pipe end in the manner described above in order to obtain that the clamping segments over their full length are pressed against the pipe surface and the tooth engages with the pipe surface. Since the clamping segments of the known 3
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forskydningssikringer efter klemmeringens sammenspænding stadig har en afstand mellem deres spændelasker, er der desuden fare for, at formstofr0ret efterhanden ved koldflydning af formstofmaterialet giver efter for klemmeringens uregelmæssige tryk og tilpasser sig efter 5 klemmeringens form, slledes at klemmeringens greb om r0renden J0s-nes og forskydningssikringen derfor ikke længere kan opfylde sin funktion.in addition, after the clamping ring of the clamping ring still has a distance between their clamping joints, there is a danger that the plastic pipe will eventually succumb to the irregular pressure of the clamping ring and, in accordance with the shape of the clamping ring, adapt to the clamping ring of the clamping ring. therefore can no longer fulfill its function.
Formalet med opfindelsen er at tilvejebringe en funktionssikker for-skydningssikring til formstofr0r, ved hvilken der opnâs et tilstrækkelig 10 stort friktionsindgreb mellem forskydningssikringen og r0renden uden at formstofr0ret 0delægges pa grund af for store klemmekræfter og for-skydningssïkringen til opnâelse af et tilstrækkelîgt kraftigt greb om r0renden bringes til anlæg mod r0ret over hele dettes omkreds uden at r0ret deformeres.The object of the invention is to provide a functional safe shear protection for plastic pipes, in which a sufficiently large frictional engagement between the shear protection and the pipe is obtained without the plastic pipe being destroyed due to excessive clamping forces and the shearing protection to obtain sufficient be brought into contact with the pipe throughout its circumference without deformation of the pipe.
15 Til I0sning af denne opgave gas der if0lge opfindelsen ud fra den foran beskrevne kendte forskydningssikring af st0bejern til st0bte r0r med en i mindst to klemmeringsegmenter opdelt klemmering, der omgiver den i en r0rmuffe indskudte r0rende og har en fortan-ding pâ sin mod rprendens yderflade liggende inderflade samt med en 20 i mindst to holderingsegmenter opdelt holdering, der griber bagom en del af muffen, og hvis holderingsegmenter over forbindelseslasker er forbundne med klemmeringsegmenterne, og hvor klemmerîngsegmenterne og holderingsegmenterne hver ved begge deres ender har spændelasker, hvormed de kan sammenspændes ved hjælp af skruer.In order to accomplish this task, the gas according to the invention is based on the prior art shear protection of cast iron for cast tubes with a clamping ring divided into at least two clamping segments, which surrounds the pipe inserted in a pipe sleeve and has a tooth on its outer face. an inner surface and with a 20 divided into at least two retaining segments which grips a portion of the sleeve and whose retaining segments over connecting lugs are connected to the clamping segments and wherein the clamping segments and retaining segments each have clamping lugs at which they can be clamped together of screws.
25 Opgavestillingen I0ses ved en forskydningssikring til formstof- r0r, som if0lge opfindelsen er ejendommelig ved, at klemmerîngseg-menternes som begrænsningsanslag virkende spændelasker i klemmeringens sammenspændte stilling ligger an mod hinanden, og klemmeringsegmenterne danner en b0jningsstiv, i sig selv lukket klemmering, 30 hvis indvendige diameter malt ved fortandîngens tandtoppe er mindre end r0rendens udvendige diameter, og hvis indvendige diameter malt ved fortandîngens tandbunde er i det mindste lige sa stor som r0r-endens udvendige diameter, og at fortandîngens tænder i det mindste i de op mod spændelaskerne grænsende omrâder af klemmeringsegmen-35 terne, der under sammenspænding af klemmeringen bevæges i det væsentlîge tangentielt pa overfladen af r0renden, forl0ber i r0rendens oml0bsretning.The position of the task is solved by a shear protection for plastic pipes, which according to the invention is characterized in that the clamping segments acting as restraining stops in the clamped position of the clamping ring abut one another, and the clamping segments form a bending stiffening, the diameter measured at the tooth tips of the tooth is smaller than the outside diameter of the pipe end, and the inside diameter of which is measured at the tooth bottom of the tooth is at least as large as the outer diameter of the pipe end, and that the teeth of the tooth are at least in the areas adjacent the clamping joints of the clamping segment. The 35 tines, which, when clamped by the clamping ring, move substantially tangentially to the surface of the tube, extend in the direction of the tube.
Disse og yderligere ejendommeligheder ved forskydningssikringen if0lge opfindelsen forklares nærmere i det f0lgende under henvisning 4These and further peculiarities of the shear protection according to the invention are explained in more detail below with reference 4
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til en pa tegningen anskuelîggjort udf0relsesform. Pa tegningen viser: fig. 1 en muffeforbindeise af formstofr0r med forskydningssik-ringen i monteret stilling, fig. 2 et tværsnit efter iinien II-Il i fig. 1, 5 fig. 3 den ene halvdel af den i fig. 1 viste forskydningssik- ring set indefra, fig. 4 et tværsnit efter Iinien IV-IV i fig. 3, og fig. 5 den i fig. 1 viste forskydningssikring i en særligt foretrukken videreudformning.for a preferred embodiment of the drawing. In the drawing: FIG. 1 shows a sleeve joint of plastic tubing with the shear lock in the mounted position; FIG. 2 is a cross-sectional view taken along lines II-II of FIG. 1, 5 FIG. 3 shows one half of the one shown in FIG. 1 from the inside, shown in FIG. 4 is a cross-sectional view taken along lines IV-IV of FIG. 3, and FIG. 5 is the one shown in FIG. 1 in a particularly preferred further configuration.
10 Forskydningssikringen har en klemmerîng 3 og en holdering 5, der ait efter st0rrelsen af r0rdîameteren er opdelt i to eller flere klemme-ringsegmenter og holderingsegmenter. I den viste udf0relsesform har forskydningssikringen to klemmeringsegmenter 3 og to holderingseg-menter 5. Klemmeringen 3 grîber om den i et formstofr0rs muffe 1 15 indskudte r0rende 2 af det andet formstofr0r (fig. 1) og er forsynet med en fortandïng 14 (fig. 3) pa sin mod ydersiden af r0renden 2 liggende inderflade. Holderingen 5 grîber bagom en de! af muffen 1.The shear protection has a clamping ring 3 and a holding ring 5 which, according to the size of the pipe diameter, is divided into two or more clamping segments and holding segments. In the embodiment shown, the shear protection has two clamping segments 3 and two retaining segments 5. The clamping ring 3 grips the tube 2 of the second plastic tube (Fig. 1) inserted into a sleeve 1 (Fig. 1) and is provided with a tooth 14 (Fig. 3). ) on the inner surface of the pipe 2 lying on the outside of the pipe. The holder 5 grabs behind and they! of the sleeve 1.
I den viste udf0relsesform grîber holderingen 5 bagom den viste muffe 1's vulstformede udbuling. Holderingen 5 kunne dog i det viste 20 tilfælde ogsâ gribe bagom muffens yderste koniske del, der danner overgangen til r0ret. Klemmeringsegmenterne 3 og hoideringsegmen-terne 5 er ved deres ender forsynede med spændelasker 4 henholdsvis 6 til optagelse af skruer 11 og sammenspændes ved spændelaskerne ved hjælp af disse skruer (fig. 1 og 2). Klemmeringsegmenterne 3 og 25 holderingsegmenterne 5 er ved deres spændelasker 4, 6 forbundne med hinanden ved hjælp af trækfaste forbindelseslasker 7 (fig. 1 og 3).In the embodiment shown, the retainer ring 5 engages the bead-shaped bulge of the shown sleeve 1. However, in the 20 cases shown, the retainer 5 could also grip behind the outer conical portion of the sleeve forming the transition to the tube. The clamping segments 3 and the hoisting segments 5 are provided at their ends with clamping lugs 4 and 6 respectively for receiving screws 11 and are clamped at the clamping joints by these screws (Figures 1 and 2). The clamping segments 3 and 25 of the retaining segments 5 are connected to each other by their tensioning lugs 4, 6 by means of tensile connection joints 7 (Figures 1 and 3).
I klemmeringen 3's sammenspændte stilling ligger spændelaskerne 4 an mod hinanden (fig. 2), saledes at de virker som begrænsnings-anslag 12. Endvidere er klemmeringsegmenterne 3 sammen med deres 30 spændelasker 4 udformede b0jningsstive og er ved den viste udf0relses-form til dette formai forsynet med afstivningsribber 13. Pa denne made opnas, at klemmeringsegmenterne danner en b0jningsstiv og i sîg selv lukket klemmerîng 3, der har n0jagtigt den i det f0lgende forklarede forudbestemte indvendige diameter, der er tilpasset efter r0renden 2's 35 udvendige diameter, saledes at r0ret 2 hverken deformeres ved sammen-spændingen af klemmeringsegmenterne 3 eller kan deformeres i den sammenspændte klemmerîng 3 og saledes, at klemmeringsegmenterne 3 endvidere trykkes mod overfladen af r0renden 2 med en n0jagtîg forud-bestemt klemmekraft, slledes at r0renden ikke pdelægges.In the clamped position of the clamping ring 3, the clamping lugs 4 abut each other (Fig. 2), so that they act as restriction stop 12. Furthermore, the clamping segments 3 together with their clamping lugs 4 are formed rigid and in the embodiment shown for this purpose. provided with stiffening ribs 13. In this way, it is obtained that the clamping segments form a bending stiffened and self-sealing clamping 3 having exactly the predetermined internal diameter as explained below, adapted to the outer diameter 2 of the duct 2 is deformed by the clamping of the clamping segments 3 or can be deformed in the clamped clamping 3 and so that the clamping segments 3 are further pressed against the surface of the duct 2 with a precisely predetermined clamping force, so that the duct is not degraded.
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For dels at opnâ den nævnte virknîng og deis ogsa at opna, at klemmeringsegmenterne 3 over deres fulde længde indgriber optimalt med r0renden 2, har klemmeringsegmenterne 3 ved deres inderside en sadan krumning 8 i forhold til krumningen 9 af r0ret 2's overflade 5 (fig. 2 og 4), at den ved spidserne af fortandingen 14 malte ind-vendige diameter af den sammenspændte klemmering 3 er mindre end den udvendige diameter af r0ret 2, og at klemmeringen 3's indvendige diameter malt ved fortandingen 14's tandbund er i det mindste lige sa stor el 1er noget st0rre end den udvendige diameter af r0renden 2. Pa ^0 denne made opnas, at kun den harde spidse fortanding 14 ved sammen-spændingen af klemmeringen 3 trænger ind i r0renden 2's bl0dere formstofmateriale. En yderligere sammentrykning og beskadigelse af r0ret 2 forhindres ved hjælp af spændelaskerne 4, der som beskrevet kommer til anlæg mod hinanden og saledes virker som begrænsnïngs-15 anslag 12. H0jden af fortandingen 14's tænder, der udg0r forskellen mellem klemmeringen 3's to nævnte indvendige diamètre, er dimensioneret pi en sadan made, at fortandingen 14 trænger sa dybt ind i r0ret 2 som muligt for at tilvejebringe et optimalt indgreb mellem klemmeringen 3 og r0renden, saledes at forskydningssikringen kan optage de fore-20 kommende forskydningskræfter, men uden at fortandingen 14 trænger sa langt ind i r0rmaterialet, at r0ret 2's væg svækkes utilladeligt pa grund af de indkærvninger, som den indtrængende fortanding 14 frem-bringer.In order partly to achieve the said action and also to obtain that the clamping segments 3 over their full length interact optimally with the pipe end 2, the clamping segments 3 have on their inside such a curvature 8 with respect to the curvature 9 of the surface 5 of the pipe 2 (Fig. 2 and 4) that the inside diameter of the clamped ring 3 painted at the tips of the tooth 14 is smaller than the outer diameter of the tube 2 and that the inner diameter of the clamping ring 3 painted at the tooth of the tooth 14 is at least equal in size. 1 is slightly larger than the outside diameter of the duct 2. In this way it is obtained that only the hard pointed tooth 14 at the clamping of the clamping ring 3 penetrates the softer plastic material of the duct 2. A further compression and damage of the tube 2 is prevented by the tensioning lugs 4 which, as described, come into contact with each other and thus act as restriction stop 12. The height of the teeth of the tooth 14, which makes the difference between the two mentioned internal diameters of the clamping ring 3, is dimensioned in such a way that the tooth 14 penetrates as deep into the tube 2 as possible to provide an optimal engagement between the clamping ring 3 and the tube, so that the shear protection can absorb the shear forces which occur, but without the tooth 14 far into the pipe material, that the wall of pipe 2 is inadmissibly weakened by the notches produced by the penetrating tooth 14.
Som det ses i fig. 4 vil den ved midten af klemmeringsegmentet 3 25 beliggende del af fortandingen 14 ved sammenspænding af klemmeringen blive bevæget i radial retning ind mod r0ret 2 og blive trykket vinkel-ret ind mod r0roverfladen. Klemmeringsegmentet 3 kan derfor i dette omride f.eks. være udformet med en filtandformet fortanding, der kan trænge vinkelret ind i r0roverfladen. De op mod spændelaskerne 4 græn-50 sende omrader af klemmeringsegmentet 3 bevæger sig derimod under sammenspændingen af klemmeringen tangentialt pa de ved disse omrader af klemmeringsegmentet 3 beliggende dele 10 af r0roverfladen. Klemmeringsegmenterne 3 er i det mindste i disse omrader, der bevæger sig tangentialt eller i det væsentlige tangentialt pa r0roverfladen, forsyne-35 de med en fortanding 14, hvis tænder strækker sig i r0renden 2‘s om-kredsretning. Pa denne made opnas, at fortandingen 14 under sammenspændingen af klemmeringen 3 hverken deformerer r0ret 2 eller, nar den glider hen over r0roverfladen pa spantagende made afskræller materiale fra r0roverfladen, selv om den ved tandspidserne malte ind- 6As seen in FIG. 4, the portion of the tooth 14 located at the center of the clamping segment 3 25, by clamping the clamping ring, will move in a radial direction toward the tube 2 and be pressed at right angles to the tube surface. The clamping segment 3 can therefore in this region e.g. be formed with a felt-toothed tooth that can penetrate perpendicularly to the pipe surface. By contrast, the areas adjacent the clamping lugs 4 of the clamping segment 3 move tangentially on the clamping ring parts 10 of the tube surface located at these regions of the clamping segment 3. The clamping segments 3 are provided, at least in those regions which move tangentially or substantially tangentially to the pipe surface, with a tooth 14, the teeth of which extend in the circumferential direction of the pipe 2. In this way, it is obtained that the tooth 14 during the clamping of the clamping ring 3 does not deform the pipe 2 or when it slides across the pipe surface in a tensioned manner peel off material from the pipe surface, although it is painted at the tooth tips.
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vendige diameter som nævnt er mîndre end den udvendige diameter af rpret 2. De î rpret 2's omkredsretning forl0bende tænder forskydes derimod i deres længderetning hen over r0roverfladen og skærer sig herunder pa lignende made som en gevindskærers fortanding ind i 5 rproverfladens blpdere formstofmateriale. Pa denne made opnas, at fortandingen 14 ogsâ i endeomraderne af klemmeringsegmenterne 3 ind-griber med rproverfladen, sâledes at der opnas et godt indgreb uden at endedelene af klemmeringsegmenterne 3 ved de i forbindelse med de beskrevne forskydningssikrînger til stpbejernsrpr forklarede foran-10 staltninger skal b0jes ind mod r0ret 2. I den viste udf0relsesform (fig. 3) har klemmeringsegmenterne en fortanding 14, der i aile om-rader bestar af tænder, der forlpber i r0ret 2's omkredsretning, idet dog fortandingen 14 er opdelt i flere trykflader og tænderne i hver trykflade med deres ender nar hen til enderne af den f0lgende trykfla-15 des tænder og er forskudt \ tanddelîng i r0ret 2's længdeakseretning i forhold til den fplgende trykflades tænder.However, as mentioned, the inside diameter is smaller than the outside diameter of the ratchet 2. The circumferential teeth of the rpret 2, on the other hand, are displaced longitudinally across the rudder surface and intersect similarly as a thread cutter tooth into the smoother plastic material of the ripper surface. In this way, it is achieved that the tooth 14 also engages with the ridge surface in the end regions of the clamping segments 3, so that a good engagement is obtained without the front parts of the clamping segments 3 explained in connection with the described displacements for cast iron rods to be provided. towards the tube 2. In the embodiment shown (Fig. 3) the clamping segments have a tooth 14 which in all areas consists of teeth extending in the circumferential direction of the tube 2, however, the tooth 14 is divided into several pressure faces and the teeth in each pressurized surface with their ends approaching the ends of the following pressurized surface teeth and is displaced in the longitudinal axis of the tube 2 relative to the teeth of the subsequent pressurized surface.
I holderingen 5's sammenspændte stilling (fig. 1) ligger holdering-segmenterne 5's spændelasker 6 an mod hinanden og vîrker som be-grænsningsanslag, slledes at den i sig selv lukkede holdering 5 ikke 20 ud0ver nogen klemmekraft pa formstofr0ret eller dennes muffe 1, der ville kunne medf0re beskadigelser. Til r0rledninger af formstofrpr an-vendes ogsâ formstykker af st0bejern, hvis muffer har en stprre ud-vendig diameter end formstofrprenes muffer. I en videreudformning af opfindelsen har holderingsegmenterne 5 derfor en sadan krumnings-25 radius 15, at den sammenspændte holdering 5's indvendige diameter er mindre end den udvendige diameter af den del af muffen 1, som holde-rîngen 5 grîber bag om, og at holderingen 5's indvendige diameter er stprre end den udvendige diameter af den r0r- eller muffedel 16, som holderingen 5 griber bag om. Pa denne made dannes der meiiem holde-30 ringen 5 og formstofrprets del 16 en ringspalte 17 med en sadan bredde, at holderingen 5 ogsa kan sammenspændes om et formstykke med st0rre udvendig diameter, slledes at forskydningssîkringen ogsâ kan anvendes til forbindelse af formstofrpr med formstykker af stpbejern.In the clamped position of the retaining ring 5 (Fig. 1), the clamping lugs 6 of the retaining segments 5 abut each other and act as a limiting stop, so that the retaining bracket 5 itself does not exert any clamping force on the plastic tube or its sleeve 1 which would could cause damage. For molding pipe lines, moldings of cast iron whose sleeves have a larger external diameter than the sleeves of the molding rods are also used. Therefore, in a further embodiment of the invention, the retaining segments 5 have such a radius of curvature 15 that the inside diameter of the clamped retaining 5 is smaller than the outside diameter of the portion of the sleeve 1 which the retaining ring 5 grasps and the retaining ring 5 the inside diameter is larger than the outside diameter of the pipe or sleeve portion 16 which the retaining ring 5 engages behind. In this way, the holding ring 5 and the part 16 of the molding groove are formed a ring slot 17 of such a width that the holding ring 5 can also be clamped around a larger piece of outer diameter molding, so that the shear protection can also be used for connection of molding molds with moldings of stpbejern.
Ved den sædvanlige fremstîlling af en udvidet muffe ved enden af 35 cylindriske formstofrpr lægges der sædvanligvis kun vægt pi, at muf-fen 1's indvendige tværsnit skal passe til den cylindriske rprende 2 og et ringformet tætningselement, som skal tætte mellem rprenden og muffen, og mufferne, som forskydningssikringens holdering 5 skal gribe bag om, kan derfor ved deres yderside hâve forskellige yderkonturer 7In the usual manufacture of an expanded sleeve at the end of 35 cylindrical moldings, only weight is usually placed on the inner cross-section of the sleeve 1 to fit the cylindrical groove 2 and an annular sealing element to close between the groove and the sleeve. therefore, which the shear retaining bracket 5 must grasp behind, can therefore have different outer contours at their exterior 7
DK 157149 BDK 157149 B
og afvigelser i formen af deres vulstformede udbulïnger. Disse forskel-ligheder ved muffernes ydersider er vilkarlîge, saiedes at der ikke kan tages hensyn til disse ved fremstillingen af forskydningssikringens hol-dering. Pi grund af disse uregelmæssigheder i muffens yderside kan 5 det forekomme, at holderingen kun ligger an mod muffens yderside ved enkelte ber0ringssteder, og at forskydnîngssikringskraften koncentreres til disse fa ber0rîngssteder med fare for, at muffens formstofmaterials 0delægges ved holderingens punktvïse anlægssteder, saiedes at muffen afrives af r0ret. For at eliminere denne fare er der ifplge yderligere ^0 en ejendommelighed ved forskydningssikringen if0lge opfindelsen saiedes som vist i fig. 5 radiait indefra i hvert holderingsegment 5 indlagî. et i tværsnît tilnærmelsesvis U-formet segment 18 af en afst0tningsring. Denne afst0tningsring bestar af et ved patvungen formændring, for-trinsvis med elastisk egenskab deformerbart trykfast materiale, fortrins-15 vis af syntetisk gummi eller en anden ældningsbestandig elastisk gunm' eller et gummiagtigt deformerbart formstof. Afst0tningsringsegmenterr:: 18 er udformede pa en sadan made, at de med to flige 19 og 20, de" ligger aksialt pi hver sin side af holderingsegmenterne 5, understf't tes mod aksîalforskydning og ved klemmevirknîng fastholdes mod at 20 falde af klemmeringsegmentet i radial retning og derfor kan büve siddende pa holderingsegmenterne 5 under monteringen af muffeforbin delsen uden at falde af. Afstptningsringsegmenterne dækker med der. ene flig 20, der er udformet med st0rre tykkelse og er særligt fo^rr** tilpasningsdygtigt, hele den med muffen 1 samvirkende brystfiade 25 holderingsegmenterne 5, saiedes at de mellem holderingen 5 og muffr-1 danner en ringformet st0dpude, der overf0rer den aksiale trækkrr.f*-fra muffen til holderingen. Ved hjælp af afst0tningsringens ringformedo st0dpude udlignes afstandsforskelle mellem holderingen og muffen. sn!·--des at holderingen over sin fulde omkreds kommer til anlæg mod γπ^,ϊ-30 fens yderside med en i det væsentlige ensartet trykfordelïng, saiedes at der med sikkerhed forhindres en 0delæggelse af muffens formstoi og en afrivning af muffen. Ved hjælp af forskellige foranstaltninger voci udformningen af holderingen og/eller afst0tningsringen kan sikres, af afst0tnîngssegmenterne kun kan indlægges i holderingsegmenterne pj 35 en sadan made, at den som st0dpude udformede og tjenende flig 20 vender mod den muffeflade, som holderingsegmenterne griber bag c*m.and deviations in the shape of their bead-shaped bulges. These differences at the outer sides of the sleeves are arbitrary, so that these cannot be taken into account in the manufacture of the shaft retaining bracket. Due to these irregularities on the outside of the sleeve, it may occur that the retaining ring abuts only on the outside of the sleeve at individual contact points and that the shear protection force is concentrated to these contact points at the risk of damaging the sleeve's plastic material at the point of contact of the sleeve. of the tube. In order to eliminate this danger, according to a further feature of the shear protection according to the invention, as shown in FIG. 5 radii from the inside of each retaining segment 5 insertsî. a cross-sectional approximately U-shaped segment 18 of a support ring. This repositioning ring consists of a piston-shaped mold change, preferably elastically deformable pressure-resistant material, preferably of synthetic rubber or another age-resistant elastic gun, or a rubbery deformable resin. Support ring segments :: 18 are designed such that, with two tabs 19 and 20, they are located axially on either side of the retaining segments 5, are supported against axial displacement and, by clamping, are retained against 20 by the clamping segment in radial direction and therefore can sit on the holding segments 5 during mounting of the sleeve connection without falling off. The casting ring segments cover with one tab 20, which is of greater thickness and is particularly suitable for **, all of which cooperates with the sleeve 1. breastplate 25 holding segments 5, so that they form between annular ring 5 and sleeve-1 an annular cushion which transfers the axial tensioning ring * from the sleeve to the holder ring, by means of the annulus of the ring ring, the distance differences between the holder ring and the sleeve are compensated. - if the retaining ring over its full circumference comes to abut against the γπ ^, ϊ-30 face of a substantially uniform pressure distribution, so that a destruction of the sleeve molding chair and a tear off of the sleeve are certainly prevented. By means of various measures which can be ensured by the design of the retaining ring and / or the supporting ring, the supporting segments can only be inserted into the retaining segments p 35 in such a way that it is designed as a support cushion 20 and faces the socket surface which the retaining segments grip behind the c * m. .
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803029771 DE3029771A1 (en) | 1980-08-06 | 1980-08-06 | SHEAR SAFETY FOR SLEEVE CONNECTIONS OF PLASTIC PIPES |
| DE3029771 | 1980-08-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK350081A DK350081A (en) | 1982-02-07 |
| DK157149B true DK157149B (en) | 1989-11-13 |
| DK157149C DK157149C (en) | 1990-04-16 |
Family
ID=6109012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK350081A DK157149C (en) | 1980-08-06 | 1981-08-06 | SHIFT PROTECTION FOR CONNECTING FRUITS |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT382701B (en) |
| CH (1) | CH651906B (en) |
| DE (1) | DE3029771A1 (en) |
| DK (1) | DK157149C (en) |
| FI (1) | FI74338C (en) |
| FR (1) | FR2489472A1 (en) |
| NL (1) | NL187991C (en) |
| NO (1) | NO162044C (en) |
| SE (1) | SE461350B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3217633C2 (en) * | 1982-05-11 | 1984-09-06 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Connection line between the compressor and intake manifold of an internal combustion engine |
| CH663263A5 (en) * | 1984-02-13 | 1987-11-30 | Sulzer Ag | DEVICE FOR PREVENTING BREAKAGE ON A PIPELINE. |
| DE29519221U1 (en) * | 1995-12-05 | 1996-01-25 | Rehau Ag & Co | Longitudinal connection |
| GB202017088D0 (en) * | 2020-10-28 | 2020-12-09 | R2M Ltd | Pipe coupling apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7046093U (en) * | 1900-01-01 | Wagner G | ||
| DE1850246U (en) * | 1962-02-15 | 1962-04-19 | Anger Kunststoff | LOCKING FOR SOCKET PIPE CONNECTIONS. |
| DE1880524U (en) * | 1963-08-03 | 1963-10-10 | Industriebedarf G M B H | CLAMPING BRACKETS USED FOR ANCHORING PIPES IN A PIPELINE. |
| FR1420486A (en) * | 1964-10-20 | 1965-12-10 | Lotigie Ets | Fitting for semi-rigid cylindrical plastic tubes with plain ends |
| DE6906617U (en) * | 1969-02-20 | 1969-08-07 | Gustav Dipl Ing Wagner | CLAMP FOR PRESSURE PIPES OF ALL SYSTEMS AND OF ALL MATERIALS. |
| JPS5236320A (en) * | 1975-09-18 | 1977-03-19 | Endo Kogyosho:Kk | Metal pipe connecting device |
| DE2638586C2 (en) * | 1976-08-27 | 1985-06-27 | Immendinger Gießerei- und Maschinenhandel Jäckle & Co, 7717 Immendingen | Shear protection for socket connections |
| ZA783196B (en) * | 1978-06-05 | 1979-08-29 | Main Ind Ltd | Improvements in pipe fittings |
-
1980
- 1980-08-06 DE DE19803029771 patent/DE3029771A1/en not_active Ceased
-
1981
- 1981-07-28 FI FI812353A patent/FI74338C/en not_active IP Right Cessation
- 1981-08-03 CH CH500381A patent/CH651906B/xx unknown
- 1981-08-05 SE SE8104707A patent/SE461350B/en not_active IP Right Cessation
- 1981-08-05 FR FR8115173A patent/FR2489472A1/en active Granted
- 1981-08-05 NO NO812655A patent/NO162044C/en unknown
- 1981-08-05 NL NLAANVRAGE8103691,A patent/NL187991C/en not_active IP Right Cessation
- 1981-08-05 AT AT0344581A patent/AT382701B/en not_active IP Right Cessation
- 1981-08-06 DK DK350081A patent/DK157149C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT382701B (en) | 1987-04-10 |
| SE461350B (en) | 1990-02-05 |
| FI74338B (en) | 1987-09-30 |
| NO812655L (en) | 1982-02-08 |
| NO162044B (en) | 1989-07-17 |
| NO162044C (en) | 1989-10-25 |
| DK157149C (en) | 1990-04-16 |
| FR2489472B1 (en) | 1984-02-17 |
| CH651906B (en) | 1985-10-15 |
| FI812353L (en) | 1982-02-07 |
| SE8104707L (en) | 1982-02-07 |
| DK350081A (en) | 1982-02-07 |
| FR2489472A1 (en) | 1982-03-05 |
| DE3029771A1 (en) | 1982-03-11 |
| NL187991B (en) | 1991-10-01 |
| NL8103691A (en) | 1982-03-01 |
| FI74338C (en) | 1988-01-11 |
| ATA344581A (en) | 1986-08-15 |
| NL187991C (en) | 1992-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |