SE192569C1

SE192569C1 -

Info

Publication number: SE192569C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: S Nord Foreliggande uppfinning riktar sig pa en tatningsanordning for skarven mellan tva retradesvis av belong bestaende rtirstycken med en mellan vasentligen cylindriska tatningsytor pa de hada rorstyckenas i varandra inskjutbara andar i deformerat tillstand anordnad, av elastiskt material utford, tatningsring, som är anordnad att vid den hire rorandens, inskjutning till skarvlaget i den yttre raranden avriilla sig langs tatningsytorna, varvid tatningsringen ar i silt tvarsnitt forsedd med ett utsprang. Det vasentligt kann.etecknande for densamma ar att utspranget vid tatningsringen, som är anordnad att under elastisk utvidgning anbringas pa den inre roranden fore rorandarnas inskjutning i varandra, är spetsformat, varvid det spetsformade utsprangets sidor begransas av tan.genter till tatningsringens ovriga tvarsnitt, vilket är cirkulart. Inventor: S Nord The present invention is directed to a sealing device for the joint between two retrievably extending pipe pieces with a substantially cylindrical sealing surface on the mutually insertable ends of the had pipe pieces arranged in a deformed condition, of elastic material challenge, sealing ring, which is arranged to at the hire rudder edge, insertion to the joint layer in the outer ridge edge unfolds along the sealing surfaces, the sealing ring being provided with a projection in a silt cross section. The essential feature of this is that the projection at the sealing ring, which is arranged to be applied under elastic extension to the inner pipe edge before the insertion of the pipe edges into each other, is pointed, the sides of the pointed projection being limited by teeth to the other cross section of the sealing ring. is circular.

Genom uppfinningerr liar astadkommits en synnerligen god kompressionstatning, som samtidigt tillforsakrar en god fixering av Torandarna vid varandra i dessas ihopskjutna age. By means of inventions a particularly good compression set has been achieved, which at the same time ensures a good fixation of the Torands to each other in their interlocking age.

Alt tatningen ar synnerligen god beror darpa, all ringens cirkulara tvarsnittsdel kan givas samma diameter som en tatningsring med hell cirkulart tvarsnitt, dá utspranget icke har flagon betydelse for den kritiska kompressionen. Den goda fixeringen av rorandarna vid varandra beror ph att tatningsringen är forsedd med utspranget med den angivna spetsiga formen. For det forsta tillforsakrar namnda utsprang att tatningsringen intager ett Thugs hela sin mukrets riktigt utgangslage vid den inre roranden, genom att tatningsringen i namnda 'age skall vila mot roranden med en av de sidor, som begransa det spetsformade utspranget. Pa grund harav och pa grund av tatningsringensi for Ovrigt runda tvarsnitt, som tillforsdkrar en jamn av- Dupl. kl. 47 f: 22/ rullning, kornmer tatningsringen uppenbarligen att langs hela sin omkrets samtidigt intaga laslaget, varfor en tveklos lasning av rorandarna erhalles i namnda lage. For det andra tillforsakrar utspranget en mycket god fixering av rorandarna i lasldget, dad& att utspranget liar en for sjalva spaxreffekten sarskilt lampad utformning. All the seal is extremely good due to the shape, all the circular cross-sectional part of the ring can be given the same diameter as a seal ring with a full circular cross-section, as the projection does not have a significant effect on the critical compression. The good fixing of the rudder edges to each other is due to the fact that the sealing ring is provided with the projection with the specified pointed shape. Firstly, the said projection ensures that the sealing ring assumes the correct initial position of a thug with its entire muzzle at the inner rudder rim, in that the sealing ring in the said age must rest against the rudder rim with one of the sides defining the pointed projection. Due to this and due to the sealing ring for the rest of the round cross section, which ensures a smooth av- Dupl. at 47 f: 22 / rolling, the sealing ring obviously tends to take up the welding layer along its entire circumference at the same time, for which reason a doubtless welding of the rudder edges is obtained in the said layer. Secondly, the protrusion ensures a very good fixation of the rudder edges in the load, so that the protrusion has a particularly lamp-shaped design for the spear effect itself.

Uppfinningen kommer att narmare beskrivas i anslutning till bifogade ritning, vilken irisar ett par som exempel valda utforingsformer av tatningsanordningen enligt densamma. Fig. 1 visar i langdgenomskdrning tatningsanordningen for skarven Indian betongror av standardtyp. Fig. 2 visar i langdgenomskdrning tatningsanordningen fOr skarven mellan ett par enkla betongror. Fig. 3 är en genomskarning av den i tatningsanordrtingarna ingaende tatningsringen, varvid densamma visas 1 obelastat tillstand. Fig. 4 askadliggor teoretiskt tatningsringens tvarsnitt. The invention will be described in more detail in connection with the accompanying drawing, which shows a pair of exemplary embodiments of the sealing device according to the same. Fig. 1 shows in longitudinal section the sealing device for the joint Indian concrete pipes of standard type. Fig. 2 shows in longitudinal section the sealing device for the joint between a pair of simple concrete grooves. Fig. 3 is a sectional view of the sealing ring entering the sealing devices, the same being shown in an unloaded condition. Fig. 4 theoretically damages the cross section of the sealing ring.

Sasom framgar av fig. 1 och 2 skall tatningsringen 1 i skarvlaget befinna sig i komprimerat tillstand mellan vasentligen cylindriska tatningsytor pa de hada betongrorstyckenas i varandra inskjutna andar 2 och 3, varvid: den inre roranden 2 utgor ett betongrors spetsande och den yttre roranden 3 ut- görbetongrOrs muffande. As can be seen from Figs. 1 and 2, the sealing ring 1 in the joint layer must be in a compressed state between substantially cylindrical sealing surfaces on the interlocking ends 2 and 3 of the two concrete pipe pieces, wherein: the inner pipe edge 2 forms a concrete pipe edge and the outer pipe edge 3 out - reinforced concrete grooves muffling.

Tatningsringen 1 ar anordnad all vid den inre rorandens 2 inskjutning till skarvlaget i den yttre rOranden 3 avrulla sig langs tatningsytorna, f8r vilket andamid det är av storsta betydelse all ringen. 1 ar anordnad att under elastisk utvidgning anbringas pa den inre roranden 2 fore rorandarnas 2 och 3 inskjutning i varandra. I tatningsringens 1 obelastade tillstand skall den alltsa ha nagot mindre invandig diameter an rorandens 2 atvandiga diameter. Ar rorandens 2 utvandiga diameter 366 mm, kan salunda tatningsringens 1 invandiga diameter vara 350 mm. 2— Tatningsringen 1 har ett tvarsnitt, som. till storre delen cirkulart, men spin Oxen innefattar ett spetsformat utsprang 4, vilket tjanar som laskIalf i skarvlaget for rordndarna 2 och 3. Det spetsformade utsprangets 4 sidor 6 och 7 begransas i princip air tangenter till tatningsringens 1 ovriga tirdisnitt, vilket ju dr cirkulart. Detta framgar air fig. 4, vid vilken vinkeln a vid utsprangets 3 spets 5 dr ungefdr 900. Vinkeln a- kan emellertid varieras inom vissa grfinser, varvid den snarast bör vaira nagot mindre an 900. I praktiken kart tatningsringens 1 tvarsnitt vara nã-got rundat, varvid det kan anses vara droppformat. The sealing ring 1 is arranged all at the insertion of the inner rudder edge 2 to the joint layer in the outer rudder edge 3 unrolling along the sealing surfaces, for which andamide the ring is of the greatest importance. 1 is arranged to be applied to the inner pipe edge 2 before the insertion edges 2 and 3 into each other during elastic expansion. In the unloaded condition of the sealing ring 1, it must therefore have a slightly smaller inner diameter than the usual diameter of the rudder edge 2. If the outer diameter of the rudder rim 2 is 366 mm, the inner diameter of the sealing ring 1 can thus be 350 mm. 2— Tatningsringen 1 has a cross section, which. for the most part circular, but the spin Taurus comprises a pointed projection 4, which serves as a laskIalf in the joint layer for the rudders 2 and 3. The pointed projections 4 sides 6 and 7 are limited in principle air tangents to the other tirdisnings of the sealing ring 1, which is circular. This is shown in Fig. 4, in which the angle α at the tip 5 of the projection 3 is approximately 900. However, the angle α can be varied within certain boundaries, whereby it should rather be slightly less than 900. In practice, the cross section of the sealing ring 1 should be somewhat rounded, whereby it can be considered to be drop-shaped.

Sasom framgar air fig. 3 dr det spetsformade utspranget 4 i tatningsringens 1 obelastade tillstand belaget vid tatningsringens 1 inre periferi med spetsen 5 belagen i tatningsringens 1 mittplan. As shown in Fig. 3, the tip-shaped projection 4 in the unloaded condition of the sealing ring 1 is coated on the inner periphery of the sealing ring 1 with the tip 5 coated in the central plane of the sealing ring 1.

Nar tatningsringen 1 fir anbragt pa rorAnden 2 skall den intaga det med streckade linjer till hoger i fig. 1 visade ldget. Spetsen skall alltsa vara valid mot rorandens 2 ande, medan en am utsprangets 4 sidor 6 och 7 vi-Jar mot roranden. I tatningslaget skall spetsen 5 daremot vara vand fran rarandens 2 dude, medan den andra air utsprangets, sidor I princip skall vila mot roranden 2, sasom framgar air den streckade linjen till vanster 1 fig. 1, vilken visar tatningsringens 1 lage, om den icke hade varit komprimerad. MufTens 3 djup och dylikt dr anpassat hartill. When the sealing ring 1 is placed on the pipe end 2, it must take in the line shown in broken lines to the right in Fig. 1. The tip must therefore be valid against the spirit of the rudder edge 2, while the sides of the projection 4 sides 6 and 7 vi-Jar against the rudder edge. In the sealing layer, on the other hand, the tip 5 should be water from the dude of the rudder edge 2, while the sides of the other air protrusion should in principle rest against the rudder edge 2, as shown in the dashed line to the left in Fig. 1, had been compressed. MufTen's 3 depths and the like dr adapted to this.

Spalten 8 mellan rorandarna 2 och 3 skall vara ungefdr lika med tva tredjedelar am diametern hos den cirkulara delen am tatningsringens 1 tvArsnitt. Ar namnda diameter 13,5 mm, skall spalten 8 salunda vara omkring 8,5 mm. The gap 8 between the rudder edges 2 and 3 shall be approximately equal to two thirds of the diameter of the circular part of the cross section of the sealing ring 1. If the said diameter is 13.5 mm, the gap 8 should thus be about 8.5 mm.

Uppfinningen fir icke begransad till det ovan beskrivna och pa ritningen. visade, utan kan densamma forfindras mom ramen for efterfoljande patentansprak. The invention is not limited to what is described above and in the drawing. shown, but the same can be found in the context of subsequent patent claims.

Claims

Patent claim:

Sealing device for the joint between two preferably aerated concrete pipe sections with a. between substantially cylindrical counting surfaces on the mutually displaceable spirits (2, 3) of the two pipe pieces arranged in a deformed state, air, elastic material deflects sealing ring (1), which is arranged so that when the inner pipe edge (2) is inserted into the joint layer in the outer The sealing edge (3) is provided in its cross section with a projection (4), can be drawn, so that the projection (4) at the sealing ring (1), which is arranged to be applied to it during elastic expansion. the inner rudder fin (2) precedes the insertion of the root spirits (2, 3) into each other, in the form of a tip, the sides (6) of the tip-shaped projection (4) being limited to the other cross-sections of the sealing ring (1), which hr circular.

Sealing device according to claim 1, characterized in that the tip (5) of the tip-shaped projection (4) lies on one. angle air c: a 90 °.

Sealing device according to claim 1, 2 or 2, characterized in that the pointed projection (4) is slightly rounded, so that the cross section Or of the sealing ring (1) is substantially teardrop-shaped. Request publications: Patents Iran France 1,244,780, 1,244,944; Norway 97 683; Germany 661 265, 662 081; USA 2 245 153.