DE8001815U1 - SOCKET PIPE CONNECTION, ESPECIALLY FOR PLASTIC PIPES WITH CONNECTING SLEEVES - Google Patents

Description

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Muffefirdhiiv / EVbindufig, especially for Plastic ears with Steök sleeves

The present invention relates to είπε Muf f BhrohrVBrbindufig, in particular for plastic rdhrB with StEDkmufi _s in which the one pipe with one slide slide into the socket edge smooth RohrfihdB bzuio Bpitzehds also is and εϊπβπ is a bushing as a bushing on the inside of which is made of a small seal RohrBS, the είπε conical and / ndsr stufsn ^ bzui * shoulder-shaped enlargement for receiving the pipe end so ^ lüiE at least one circumferential sicka and / or είπε stepEn- or shoulder-free opening for receiving at least one sealing ring seat or the sealing ring. Due to the special design of the smooth pipe end bzu * pointed end, which has at least one circumferential bead and / or at least one projection, in combination with a connecting element that grips over the pipe end, and a longitudinal bond is obtained.

Muffenrahruerhindungen, especially for plastic pipes with plug sockets, are already generally known (cf., inter alia, DE-DS 21 5D 831 and DE- ^ PS 2k 16 93S). Thus εΪπε seal _{achieved, are employed in the Umfangssioke the sleeve prior to locking the seal rings A, to thereafter dis SpitzEndsn of the tubes if necessary

uierden thinly provided with lubricant, in the sleeves einzu-]

i slide. Even with the use of the most varied of S-shaped sealing rings and constructions, there are no restrained connections between the pipes in the case of 1 compressive loads. Since the smooth pipe end is to be pushed in as far as possible, for example near the peripheral part of the shoulder-shaped extended socket part, there is a risk of damage to the interior of the socket part, which can lead to a considerable risk, especially in the case of pressure-loaded pipes. Also externally attached pipe markings with paint, adhesive tape and the like. Often turn out to be inadequate, since they can be wiped off during transport, moved or removed and when laid under insufficient light conditions, e.g. B. in the ground and the like., Are not clearly visible.

The aim and object of the present invention was, in a socket pipe connection, in particular for plastic pipes with push-in sockets, in which the «sine pipe with one can be pushed into the socket end smooth pipe end bziu. Pointed end is provided and has an outer diameter which is slightly smaller than the inner diameter of the socket end of the pipe, which is a conical and / or step or shoulder-shaped extension to accommodate the pipe end and at least one circumferential bead and / or nine step «or shoulder-shaped extension to accommodate at least

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Its sealing ring has a sealing element, one if possible to develop a secure restrained connection. Included

I should also be pushed into the I.

Muff the driving of damage to the interior in the area | the sleeve end can be avoided without additional marking tapes, marking symbols and the like. Are required. After all, the pipes should be able to be locked quickly and thus in a labor-saving manner and without any problems. Can be connected in a restrained manner be.

According to the invention it has been found that these goals are achieved by a socket pipe connection, in particular for plastic pipes with push-in sockets, in which one pipe (1) is provided with a smooth pipe end or spigot end (7) that can be pushed into the socket end (B) and has an outer diameter has, which is slightly smaller than the inner diameter of the socket end (8) of the pipe (2), which has a conical and / or step or shoulder-shaped extension (9) for receiving the pipe end (7) and at least one circumferential bead (17) and / or has a step-shaped or shoulder-shaped extension (16) for receiving at least one sealing ring or sealing element (I9). The object is achieved in that the smooth pipe end or spigot (7) has at least one Umfahgssicke (3) and / or a bead (U) and / or at least one projection (5), the tizw. which is or are arranged at a distance from the pipe opening of the smooth rim or spigot end (7), the ¹ |

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is shorter than the van the beginning of the kanisch and / or step-bzui. shoulder-shaped extension (9)

s stretching sleeve end (8), with a

Lying connecting element (1G) completely or partially over the circumferential bead (3) and / or over the bead (4) and / or over at least one projection (5) and over part of the socket end (8) in a locking manner and forms a longitudinally positive connection. The last part of the socket end is designed in such a way that it encloses or surrounds the inserted smooth pipe end or spigot end almost in a ring-shaped manner. In the embodiment or arrangement according to the invention, a locking and a longitudinally force-fit pipe connection, which is preferably used for pressure stirring, pressurized fluid pipes and the like, is achieved. The attached circumferential bead (3) and / or LJulst (U) also prevents dust or dirt from getting into the hoof end.

According to the invention, the free insertion length of the smooth pipe end or spigot end (7) limited by the circumferential bead (3) and / or bead Ck) and / or at least one projection (5) is slightly shorter than the mechanically possible insertion depth Sleeve end This ensures that the spigot end (7) does not strike the inner sleeve wall when it is pushed in.

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According to a preferred embodiment, the wall thickness is the circumferential bead (3) larger than the pipe wall thickness. By this training ωεΐ-the possible pressure loads uon the pipe fazu. the circumferential bead is better absorbed.

The vertical distance between the circumferential bead (3) and / or the bead and / or the l / Orsprunges (5) from the outer pipe surface more than 1/5 of the wall thickness of the pipe, preferably more than 1/3 of the wall thickness of the pipe (1). In practice this is the case vertical distance should be more than approx. 2 mm. This distance between the circumferential bead (3) and / or the bead (4) and / or the projection (5) of the outer pipe surface must not be too insignificant be so that the connecting element (1D) locking bzu. firmly over the circumferential bead (3) and / or bead (4) and / or at least can overlap a projection (5) and there is no risk of warping or shifting the connection.

The connecting element (1G) consists of zuei or more Arched cross-sectional shapes with bulging parts of the shell (11, 12), the closure or locking element ^ on their outer surface at or near the parting plane bzu. Parting lines of the shell parts or openings, protrusions or other Have devices for receiving locking elements.

The Schaienteiie (11, 12) of the connecting elements ^ show a preferred embodiment on its inner surface or

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several groove-like wastes in cross-section tfäpef », fing =» Arched vein gradual recesses bziü * Ausföffnurlgeil (1B, 22, 23), the üöfzugsujsise of the Umfafigssieke (3) and / veins the bead (4) and / veins the projection (5) and the one on the socket = end (ß) located circumferential bead (17) and / or the stepped or shoulder-shaped openings (16) are adapted and / or these overlap * This design makes the force fit the longitudinal connection and the locking supported * Preferably, the outer and / dthe inner diameter are the Shell parts (11, 12) enlarged towards their axial center or «from the middle area to" "Jan shell ends vsr = ringerti This arrangement enables material savings can be achieved in the manufacture of the shell parts. The neck parts, which are arcuate in cross-section, are expedient (11, 12) widened conically towards their axial center and / or increased in steps *

According to a further preferred embodiment, the shell parts (11, 12) to be connected have the same shapes and dimensions and / or are mirror-symmetrical in the closure arranged. This makes it possible to use the same shell parts as connecting elements. Savings LJerkzeugkosten and the like. This embodiment enables.

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The connection element (10) consists according to the invention two udif multiple arched cross sectionsfQfγπβπ SHELL DUCK (11, 12), which on their outer surface at or in the (mowing the separation level bzu * TrönnfugE (buttstEÜEn der SchaiEntEÜB) dös ängfenzEhden BchälEntEÜES along the separation level bzui * Trsnnfuge overflowing KUE-SHAPED Uar cracks or parts of a schualbenschüjanz-like guide (13, 14) have, each of which has a Spanrtuefscfilußteil (15) with one, the Keü-shaped jumps or the joined parts of the SchuaibEnschujanzähnlichEn guides (13, 14) adapted schuaibEnschujanz-shaped Deepening is assigned to bzu. over this locking overlaps. Through this special socket connection Ljifd a non-positive quick locking and quick locking the stirrer to be connected, especially plastic pipes, enables.

According to the preferred embodiment, along the Separation level bzu. Parting line of the shell parts running wedge-shaped projections or parts of the schualbenschujanz-like Leadership at its junction with the outer fairing area or at a certain distance from the outer perimeter an incision, a courage or a triangular cross-section or tpez-like guide (2D) on which formations of springs with a trapezoidal or triangular cross-section or other lock guides (21) of the tension lock part (15) assigned or adapted. This design prevents the clamping element from "jumping off". One each

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along the meeting point Tfennfuge Bifies VEflaufEfldEf kEÜfäffnigEr Wflfsprung QDEF the Sdhalefiteii itself Sdöi Tgüe the SDhüJälbEf1si3hujänzMhnlichEn guide (13) tfSgefi bzLüi bösitzEn a barren mehrefE Uarsprüngej MdökEti, Fang "pins or spring-like EiementEj preferably ZuF shells ^ tentfiErung ^ densn corresponding Äusfarmungen vein nutenahnÜchE indentations of änderen Schalenteilas _(the other along the separation plane or the parting line of the shell part Eä external wedge-shaped protrusions or the part of the schualbenschujanz-like guide C1 ^) are assigned.

According to another embodiment, they point along the street of the shell parts (11, 12) extending wedge-shaped projections or schujalbenschuanz-like guides on your der Separation level bzu. Parting line removed from outer edge grooves, Ribs, teeth or tooth-like incisions as an additional aid to self-locking of the lock, corresponding to those Grooves, grooves, tooth-like incisions of teeth on the inner edge are assigned to the inner surface of the clamping lock part.

According to a different execution farm, each pipe has one Circumferential bead (3) and / or a QJulst (4) and / or at least a UarsprUrig (5) before the spigot end, do while the other end of the thread A conical and / or stepped bzui. shoulder-to-shoulder elucidation for holding a sealing ring or sealing element (19) or a circumferential bead (17) for receiving

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of the sealing ring and designed as a socket end is,

The shell parts (JIj 12) can consist of the most varied of materials, 2 * EL made of metal or plastic ₍ preferably bus Uinylchiaridhomö ^ or -copalymerisatj polyethylene or polypropylene ^

As a sealing element which is known per se Dichtringej could the arcuate Quersöhnittsfarmen _t U-shaped profiles, in cross-section trapezoidal profiles and the like *, found on-Ljeisen Ueruendung. Sealing rings are preferred which have a ring-shaped circumferential incision or similar ring-shaped circumferential groove-shaped depressions on their inner surface facing the pipe center, into which rings or ring-shaped spring elements made of harder elastic material are inserted. By inserting the ring made of harder elastic material, the sealing ring is pressed against the inner surface of the circumferential bead (3) or fixed in this position.

The attached drawings (Fig. 1 and Fig. 2) give schematically an embodiment of the socket pipe connection according to the invention again.

In Fig. 1 it is shown how the tube (1) with its spigot end (7) is pushed into the socket end (S) of the pipe (2),

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The socket end (B) of the pipe (2) has a conical and / or | step-bzui. shoulder-shaped extension (9). Up to this conical widening, the beveled spigot end of the pipe can be pushed in without damaging the surface of the interior of the sleeve. The circumferential bead (3) and / or Ululst (.U) vein one vein several Uarsprünge (5) serve as a "stop" of the socket end, the last section of the socket end ring-shaped surrounding the pipe end (1).

A sealing ring or sealing element (19) is introduced into the circumferential bead (17) and / or the step-shaped or shoulder-shaped extension (16) of the sleeve. The connecting element (10) fully or partially overlaps the circumferential bead (3) and / or bead (U) and / or the projection (5) and part of the socket end (B). The shell parts (11, 12) of the advertising element (10) have a plurality of groove-like or trapezoidal, ring, arcuate or step-shaped depressions or formations (18, 22, 23) on their inner surface.

In Fig. 2 is a cross section through the socket pipe connection shown. The neck parts (11, 12) are shown in section; they have parts of a swallowtail-like shape Guide (13, Ii *), each of which is assigned a clamping lock part (15) is and overlaps on this locking. In order to prevent the Uersehlussaeis from "jumping off", the Swallow-tailed guides a rage, a cut

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vein a vein similar in cross section to three vein trapezoidal Guide (2G) on which the Usrschlussführung (21) of the Spannuerschlußteiles is adapted.

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Claims (1)

Protection claims r'- ° ' "■>·"■> * · * -. ** -.' 1. Socket pipe connection, especially for plastic pipes with Plug-in sockets in which one pipe (1) is connected to a Socket end (8) insertable smooth pipe end or spigot end (7) is provided and has an outer diameter which is slightly smaller than the inner diameter of the Sleeve end (8) of the pipe (2), which has a conical and / or step-shaped or shoulder-shaped extension (9) for receiving the Pipe end (7) and at least one circumferential bead (17) and / or a step or shoulder-shaped extension (1G) for inclusion has at least one sealing ring or sealing element (19), characterized in that the smooth pipe end bzu. Spigot (7) at least one circumferential bead (3) and / or one üJulsfc (.k) and / or at least one projection (5) which is at a distance from the pipe opening of the smooth pipe end or spigot (7; is or are arranged, the shorter is than that from the beginning of the conical and / or stepped resp. shoulder-shaped extension (9) extending sleeve end (8), wherein a connecting element resting on the pipe end (1D) in whole or in part over the circumferential bead (3) and / or overlaps in a locking manner over the bead (4) and / or over at least one projection (5i and over part of the socket end (8)) and forms a restrained connection. ß. Socket pipe connection, especially for plastic pipes with Push-in sleeves according to Claim 1, characterized in that the * * Il Il ι ". ί" Ί • ■ I I Il 4 1 * 111 • ψ ■ ft through the circumferential sieve (3) and / or bead (^) and / or at least a protrusion (5) limited free insertion length of the smooth touching bzuj. Pointed end (7) slightly shorter is as "! ιέ mechanically possible insertion depth of a non-limited smooth pipe end into the socket end (B). 3. Socket pipe connection, especially for plastic pipes with Push-in sleeves according to Claims 1 and 2, characterized in that that the wall thickness of the circumferential bead (3) is greater than that Rohrujand starch. k. Socket pipe connection, in particular for plastic pipes with push-fit sockets according to claims 1 to 3, characterized in that the vertical distance of the peripheral bead (3) and / or the bead Ck) and / or of the projection (5) from the outer tube surface more than 1/5 of Wall thickness of the pipe, preferably more than 1/3 of the wall thickness of the pipe (1). 5. socket pipe connection, in particular for plastic pipes with plug sockets according to claims 1 to U, characterized in that the connecting element (10) consists of zuei or more arcuate Querscnnittsfarmen having shell parts (11, 12), the closure or Verriagelungselemente on their outer surface on vein in the vicinity of the separation gaps or joints between the shell parts or have openings, projections or other devices for receiving locking elements. • Il Il f
* * β Il I * · «Jl I S ₄ Socket pipe connection, in particular for plastic sleeves with StsDk sockets according to claims 1 to 5, characterized in that the shell parts (11, 12) of the connecting element on their inner surface have an or several groove-like or in cross-section trspec, finger, arch = or step-shaped U- > Depressions bzüj »formations (18, 22, 23) which preferably the circumferential bead (3) and / or the bead (4) and / or the projection (5) and the circumferential bead (17) and located at the socket end (B) / or are adapted to the stepped or shoulder-shaped extension (16) and / or overlap * 7i socket pipe connection especially for plastic pipes with Push-in sleeves according to Claims 1 to S, characterized in that the outer and / or inner diameter of the shell parts (11, 12) enlarged towards their axial center bzui- vom middle area are reduced towards the shell ends. 8. Socket pipe connection, especially for plastic pipes with Push-in sleeves according to Claims 1 to 7, characterized in that the shell parts (11, 12) which are arcuate in cross-section widened conically towards its axial center and / or stepped are increased. 9. Socket pipe connection, especially for plastic pipes with Push-in sleeves according to Claims 1 to B, characterized in that the shell parts (Hj 12) to be connected have the same shape and have dimensions and / or are arranged mirror-symmetrically at the closure. lit * * 4 d · «·» 1D ₄ Muffenfahfvörhnung, especially for plastic tubes with StBGkfhuffEn according to claims 1 to 9, characterized in that the connecting element (10) consists of two and several arches = fafmigen transverse ächni btsfarmen aufujeisende formwork parts (11, 12) on their outer surface vein in the vicinity of the separation plane bzu) * parting line of the adjacent shell part along the parting plane or * parting line running wedge-shaped jumps or parts of a schuiälbenschmanzähnliehefi | Have guides (13, 14), each of which is assigned a clamping part (15) with a schuialbenschiuanz-shaped recess adapted to the wedge-shaped warps or the joined parts of the schiijalbenschuanz-like guides (13, 14). over this locking overlaps. 11; Socket pipe connection, especially for plastic pipes with Push-in sleeves according to Claims 1 to 10, characterized in that the bzui. Parting line of the shell parts extending wedge-shaped projections or parts of the schualbenschtdanz-like leadership at their junction to the outer pipe surface or at a certain distance from the outer pipe surface an incision, a groove or an im Cross-section of triangular or trapezoidal guide (2G) have, which Ausfbrmungen of trapezoidal in cross-section or triangle-like springs or other locking guides (21) of the tension lock part (15) are assigned or adapted. It «it i it 14 12 "Muffenföhrverbinduhc], especially for plastic years with Steökrfluf f EfI according to claims 1 to 11, dadufßh marked, that JELüEÜs a along the separation level bzüj * TfEnfifugE EiriEs SehalEntEÜEs ti ksüföfrriigEf üdrspfufig udEi The shell part is the same as the parts of the shtuaibEnsöhujanz-similar Guided tour (13) είπεπ ödEi fnEhrEiE UorsprüngE, IMoöken, Catch pin DdEi fEdsrähnÜchE EiEmEntö, WDrzugaüjeise zur Shell de-icing owned by ^ srij defiEn appropriate infiltration ÖdEi groove-like indentations on the other shell, dss andsrsn along the parting level bzu * parting line dES Shell teas have a cheesy origin vein of the Part of the schualbenschujanz-like guide (14) assigned are. I3i socket pipe connection, especially for plastic pipes with Push-in sleeves according to one of Claims 1 to 12, characterized in that that the along the joint of the shell parts (11, 12) v / running wedge-shaped warps or schualbenschujartzähnlichen Guided tours at their level of separation bzui. SEPARATION JOINTS edged outer edge grooves, ribs, teeth or tooth-like Incisions as an additional aid to self-tightening of the fastener Aufueisen, which corresponding grooves, grooves, tooth-like Incisions of dull teeth on the inside edge or inside surface of the clamping element are assigned.