DE7245459U - Seal for connecting thread in armatures, fittings or the like - Google Patents

Description

DIPL. ING. LOTHAR DÖRNER PATENT ADVOCATE

58 HAGEN. STRESEMANNSTRASSE 15 9 July i97l

TELEPHONE (0 23 31) 283 02

An v / alt s ^ kte

Usage model annotation elj'ur: G 72 45
Applicant: Hubert Scholl KG.

ig for connecting threads on armatures, fittings or the like

The control unit has a seal for connection threads in armatures, fittings or the like, which has an annular groove in the connection and a sealing ring made of plastic that is embedded in the annular groove.

. i.-i Am ·; · ruren, Fit "cin ~ s or the like it is known to her mcchlu ^ : ev, inde with - '. anf or jjichtbjiridern to wrap, to verki υ "<_: ■" and then by screwing into a winch a Me-G.ir.ui, i / ienesondsre water, leading pipe to be connected to this. These procedures are cumbersome and time consuming. It ': "' t '.-Uch known for the sealing of a screw socket on their ln: ^. er: Dantelfl: tche in the ere ic ι of the nut thread with a groove uinem inserted KiiEtstoffri.-r · to be provided in which a a pipe existing! -. olzengewinde when screwing into the Socket presses in, there is also a seal for pipe connections : en known in the Sohrgevyinde designed as an external thread an annular groove is provided in which a sealing ring with a circular cross-section made of rubber or rubber-like plastic is embedded is. The outer diameter of the sealing ring is essentially the same as the outer diameter of the internal thread. Both the aforementioned seals, there is a risk that the

! "inserted sealing ring does not remain in its predetermined position when the threaded parts are screwed into one another, rather rotates ro., u ti ν to the annular groove in the tangential direction and then to-Ii ₁ ir des b partially also in the axial direction of the thread-E c lifted what prevents a secure seal

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a pipe connection is known in which a cap filled with a sealing ring is provided at the end of the internal thread of a sleeve, the base of which is provided with knurling. The sealing channel consists of a soft metal alloy. Its part protruding over the annular groove is extruded with the aim of screwing a ι o: iischen external thread provided in a tube into a gap, c ^ r between the cone and the; At the end of the socket there is no thread, but an enlarged diameter of the socket. This seal is chosen to ensure an electrically conductive connection between the pipe and the sleeve. With the slightest turning movement between the tube and the socket in the unscrewing direction, the sealing effect is no longer guaranteed.

The purpose of the innovation is ^{to eliminate the mentioned Mac 1} parts of known seals. It is the object of a seal of the aforementioned type so weiterzubildei, dais neither a twisting of the sealing ring ir of the annular groove, even a displacement of the sealing ring in Axialrichtune · of the thread is possible, not even if dos terminal _t; ewinde for aligning the armature , the fitting or the like must be dre.it several times in -Uinschraub- and unscrewing. The innovation is happy to solve this problem in that the ring groove on its ring base is provided with knurling in a manner known per se and that the sealing ring made of temperature-resistant, glass fiber reinforced material with high cold flow properties protrudes and at least over the front in the screwing direction the annular groove protruding edge is provided with a bevel. In the case of the innovation, when the threaded parts are screwed together, the chamfer of the sealing ring embedded in one threaded part first comes into contact with the front face of the other threaded part. This results in the DicHring being pressed onto the groove base in addition to the preload and not being displaced in the axial direction. The knurling also increases the stability of the thread in the area of the groove, which is important because that

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The thread oufwf. Is its smallest cross-section in this area. The material chosen for the sealing ring increases the self-sealing effect. Because of its F "hi":

nearly
after a short time it regains its original shape, even completely unscrewing the Ai-schlui-i.-ovindc from a pipe and screwing it back into a pipe unchanged; in particular, however, any arrangement in the screwing-in and screwing-out direction to align the fitting, the fit L in ' ^- s or) er like that, without losing the dichi-v; i:? kun ~. Once the sealing ring rev / f.ai 'is pressed into the groove, a secure seal is provided for all media, for example gas and air, in particular ^ .b & r for _; Yes; 3ser. Mi ·. · Of you do ™ RACH of 'your up <will ensure in a simple .veise and in a short time a self-sealing effect evzielt.

From a constructive point of view, the self-sealing effect θλ - If there is a Ki ^ nut embedded in an internal thread the outer diameter of the ßingrut and the sealing ring are larger as the outside diameter of the inside geometry and the inside diameter of the sealing ring is smaller than the core diameter; at a ring embedded in an external thread is the internal diameter the ring groove and the sealing ring. gs smaller sina than that Core diameter of the external thread and the outer diameter of the Sealing ring is larger than the outer diameter of the external thread.

The stability of the thread in the area of the annular groove increases improved if the knurling is designed as a cross knurling, since here between the side walls of the Kut in the manner of a Waffle pattern material remains on the groove base. It is weiteün advantageous to provide the sealing ring with a bevel on both edges protruding beyond the annular groove. This makes everyone Sealing ring can be used universally, regardless of the side from which a thread has to be screwed into another.

An embodiment of the innovation is shown in the drawing and is described in more detail below. Show it:

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Fig. 1 work in side view, others; · it ε .. ·. ::. JjJhi ^ sscnnirs a with a Viingnut and a ^:) ichtring provided Gev .: "d'jsvutsen before, during and after screwing into a>;ui'xe;

Fir :. 2 einereeios in S.Λ ce: n: nsicht, otheröcitc in; Lan sschnitt a.-. ' rr.with an annular groove and a ·. · ::: direcitively provided ·· huffe vor, ι.Γ · γο '\ ^; unc, after icn Arn screw r '.:. os 0-e \ i ~ ide cutz-Gns.

^!.:):: V rr-ls Ausfir ru: igf ^ ^ eii Nici g: ■ · ". \ IZC: ev ') ir.destut :: on 1 Wittin a ^ o is Connections ·:;!" . to be free, ir.de with ei "er nn ._. e_i; thread 3 provided, weleb es .'_ n ·: ίη Gr - \; inde ... · an i.";. f. ^; . "e" ei: screw, ar is. On the · "ewindestut:, en 1 is ' ⁵ in ·· .-. J.,' ·: ·· ..oi ^ i atdec'ende iV'Chubroset to '<χ ".-R: ζ '.! . ©. ■ ". ._- ■.

! ■■ at the jn Vig. 1 dargosocllöon AuciTh.ru .GC "-. I: n ici ..e: ^nn, de · Gewindestut / .en 1 a 'dl; in groove' · with a ner ^'ne.ei ^ s." uj -πυηί> a, cf. j ⁽ 'i' ^r . 1a. In the ring groove is c-ir Jicitrin- -; pressed in. cf. Fij:. 1b. The sealing ring · + v.eist. "umindegb ar rope : ■: in the screw-in direction at the front, over the '-iing.iut orsücäcie · ;. edge a bevel 4a. The sealing rir - restc ^: vi; air ten-erarui ·. Natural, fiberglass-reinforced jr.rkten hatcnial, especially also plastic ., the high Kaltf the egg: :: ;; <.: n.i'ten au.J \, EIET the I nc. durchmessei · the annular groove and) ic ^'n vi r ^".:!.: :;: ind ): lv i: \ or ¹ ^ .. der Kerndurcnrissssr the A final-ev.ir ue ^. '. ') he Au ·. e. "dv .. 'c"·;:;: tdes Dich.trirgs 4 ict greater than the Au e ^ nurohner.Ge: ^·:: ..: cehj GeV / Meanwhile 5 × The sealing ring ^l \ - is under. Opening credits; . · In nT. i ^ i y inserted, λγ v; is expanded, pushed over the front ^ end of the A final thread 5 and spriii'-t bein .vv'e ^ 'n'.i ■ _.:. · ..in ■ -nut -j to its original .Vorm Lurüch. Ausführungsbeicpiel asked weis'ö the i-.uj.io 'L with the knurled Nutrrund -a into which uer "Jich.irinr ·';. ■ is pressed, see Figure 2a and 2b meadows here has the.. Dienurhi at least on its front in .r. Screwed-in direction, .bor never Λ: only 5 dividing Kanre on the bevel 4a and consists of te-upei turbo-resistant, fiberglass-reinforced material with no. Ka]. Flow properties The outer diameter of the annular groove and the sealing ring 4 are larger than the outer diameter of the inner

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• .. "p. '. L .. ■:. iK: '! "- Λ"".,'.·.;:. ¹ .. '; :: ■:;. J - V dor- Oic'vcrin- τ, 4:'.:;υ".lc-Lner; Ιε

■■ .. ". N λ '.scir-iv." en des ■ 'o' ./ ii aestret ^ enr; '1 in the kiufe; elan L; i .yvrvichen the Io s. '■' cr ^ vc'e: ¹ - V ^- I. Vi :. 'ic - die.: \ -! r, <v 4a ■; Oi "L ^r : en 'it'. 'Inde ^ tuo ^ cüi'" eir '-. X-ior: ·''-! ^:) ic'i cri.'irs 4 an eic ·. üi.msei oO the I-! u .: '■.' ■: od «r - v'l. x ' ¹ ! ¹ '. . c - the J / nse · Ί-α Cit :: in.

iJle ^ ev / eiiifion Stij ⁿ nseiten then press iux.r the .Rase ^ZL a the üichtrinrv -i- more on the Liuvrund -jn the liinf'nut j ;. Ho will prevent, d; .e .. the seal riV ¹ 4 shifted in A.cialrichtun ^ of the thread \ :: i.rd. Aiferdem c :: hJ'Ait die! '' Iächeriprcsourir: on the '.'ut'^!;round;, · α, which is also provided with a knurl. This wiivl ■; facilitated r, eitir · prevents displacement of the sealing ring 4 in Tangentialrichtunr within the annular groove ~ j>.. Rather, on the one hand firmly pressed into the annular groove 5 sealing ring 4 nestles into the threads of the thread 8 in the socket 6 or into the threads of the connecting thread 5 of the threaded connector 1, thus without any further sealing means in a simple V / else a reliable seal between the threaded connector Λ and the sleeve 6 is obtained. - see FIGS. 1d and 2d -.

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Claims (4)

Protection claims Λ . Seal for connection thread in armatures, fittings or the like, the eire ring groove in the connection thread uid. has a sealing ring made of plastic embedded in the annular groove, characterized in that the annular groove (3) is provided with knurling at its groove base (3a) in a manner known per se and that the sealing ring (4) made of temperature-resistant, glass fiber reinforced material with high There is cold flow properties and is provided with a bevel (4a) at least on the front edge in the screwing-in direction that protrudes beyond the annular groove (5). 2. The seal according to claim 1, characterized in that the Knurling is designed as a cross knurling. 5. Seal according to claim 1, characterized in that the Sealing ring (4) on both protruding beyond the annular groove (5) Edges are provided with a bevel (4a). 4. Seal according to at least one of claims 1 to '-j in which the annular groove is let into an internal thread, characterized in that the outer diameter of the annular groove (;>) and the Diciitrings (4) are greater than the outer diameter of the Ii : nen; - 5v.'inde £ (8; and the Irm throughnies ^ er of the sealing ring (4) kit iner than the core dux-ci'j.iessei 'of the ' J : nor .- "ev; indeö (o) · 72A545925.10.73 y. Dichnmr; according to at least one requirement! "· '." ·, '· -; -dor the iiinpjrrat in an Auioen ^ o ¹ .. "ndc a -elasGor. irt, ■ - ..?; · - by i-jekcnnzoichnot, da ¹ ; · dia la-if-rdu.rchMesscr aer Air .; r.u '■; (.) and des Dich t; i'inn; s (4) J: leiner fird -ιΐε dt.-r Kervu ". ^{1. 1} .: - · '.; ^ - raesser des Aui.! en"ov; inder (') and the .ai ^ endurc' Pio ^ riü ;. ¹ de: _ Dichtrinrc (4); roj..er is als dor Au ..cpx.urc r.nesser Aes Auüen ^ ev / indes (?) · 724545925.10.73