SE466415B

SE466415B - Remote-controllable pipe clamp

Info

Publication number: SE466415B
Application number: SE9000272A
Authority: SE
Inventors: B Ode
Original assignee: Asea Atom Ab
Priority date: 1990-01-26
Filing date: 1990-01-26
Publication date: 1992-02-10
Also published as: SE9000272L; SE9000272D0

Abstract

The invention relates to a pipe clamp suitable for remote control, for interconnecting two meeting pipe ends provided with flanges. The clamp consists of a first and a second semi-circular ring segment 3, 4. These are provided with longitudinal cutouts fitting around said flanges. The first ring segment 3 has a first and a second end portion 11, 12 and the second ring segment 4 has corresponding third and fourth end portions 13, 14. The first and the third end portions 11, 13 are pivotably mounted on a spindle 5 which is fixed on one pipe end. According to the invention, said second and fourth portions 12, 14 are provided with first and, respectively, second through-holes 15, 16 for receiving a screw 9 which joins said end portions 12, 14 together. One end of the screw 9 is arranged freely running in said first hole 15 and is, by means of a driver, locked in the axial direction on the associated second end portion 12. Arranged in the second hole is a first cylindrical component 17 which is rotatable about an axis at right angles to the longitudinal axis of the screw. A third, threaded, through-hole 18 for the other end of the screw 9, which hole coincides with said second hole 16, has been made through the surface shell of the component 17. The first and second holes 15, 16 have also been enlarged so that inclination of the screw 9 in the holes is allowed when the pipe clamp is fully open. <IMAGE>

Description

466 415 2 Genom uppfinningen erhålles en klamma som enkelt kan öppnas och slutas medelst endast vridning av ett enda verktyg, nämligen en på en stång anordnad lämplig kanthylsa passande på ett på skruven anordnat huvud. 466 415 2 The invention provides a clamp which can be easily opened and closed by means of only turning a single tool, namely a suitable edge sleeve arranged on a rod and fitting on a head arranged on the screw.

Skruven befinner sig nämligen hela tiden på plats i klamman och klamman i sin tur är fast orienterad i förhållande till ena röränden. Klamman kan medelst skruven öppnas så mycket att en andra rörände med fläns kan föras in under klamman till anliggning mot den klamman tillordnade röränden.Namely, the screw is always in place in the clamp and the clamp in turn is fixedly oriented in relation to one pipe end. The clamp can be opened so much by means of the screw that a second pipe end with flange can be inserted under the clamp for abutment against the pipe end assigned to the clamp.

Därefter tillsluts klamman medelst vridning av skruven åt andra hållet.Then the clamp is closed by turning the screw in the other direction.

Uppfinningen förstås enklast under hänvisning till bifogade figurer 1-4, där figur 1 visar klamman sedd från sidan och figur 2 figur 1 sedd uppifrån med klamman i slutet läge. Figur 3 visar klamman i öppet läge. Figur Ä visar en genomskärning av klamman i slutet läge med inneliggande rörändar.The invention is most easily understood with reference to the attached figures 1-4, where figure 1 shows the clamp seen from the side and figure 2 figure 1 seen from above with the clamp in closed position. Figure 3 shows the clamp in open position. Figure Ä shows a cross-section of the clamp in the closed position with the inner pipe ends.

I figur 1 betecknar 1 och 2 rörändar hos de rör som skall hopkopplas medelst klamman. De halvcirkelformade ringsegmenten 3 och Ä är svängbart lagrade på den gemensamma axeln 5. Axeln 5 har fixerats medelst en hållare 6 vid röränden 1. Ringsegmenten 1 och 2 är låsta till axeln 5 medelst en saxsprint 7. På hållaren 6 är ett stopp 8 fästat. 9 betecknar en skruv som sammankopplar ringsegmentens 3 och 4 ändar. Nedre delen av skruvhålet är vidgat såsom framgår av öppningen 10 runt skruven 9. Ringsegmenten 3 och 4 är försedda med ett första och ett andra ändparti 11, 12 respektive ett tredje och ett fjärde ändparti 13, lä. Genom ändpartiet 12 upptages ett första hål 15 och genom ändpartiet lä ett andra hål 16, vilket senare är gängat för skruven 9 som sammanbinder ändpartierna 14 och 16. Skruvens 9 ena ände löper frigående genom det första hålet 15 och har medelst en medbringaranordning, som i detta fall består av skruvhuvudet 19 och den fasta brickan 20, lästs i axiell led vid tillhörande andra ändparti 12.In Figure 1, 1 and 2 denote pipe ends of the pipes to be connected by means of the clamp. The semicircular ring segments 3 and Ä are pivotally mounted on the common shaft 5. The shaft 5 is fixed by means of a holder 6 at the pipe end 1. The ring segments 1 and 2 are locked to the shaft 5 by means of a scissor pin 7. A stop 8 is attached to the holder 6. 9 denotes a screw which connects the ends of the ring segments 3 and 4. The lower part of the screw hole is widened as can be seen from the opening 10 around the screw 9. The ring segments 3 and 4 are provided with a first and a second end portion 11, 12 and a third and a fourth end portion 13, respectively. A first hole 15 is received through the end portion 12 and a second hole 16 through the end portion 1, which is later threaded for the screw 9 which connects the end portions 14 and 16. One end of the screw 9 runs freely through the first hole 15 and has by means of a carrier device which this case consists of the screw head 19 and the fixed washer 20, loaded in the axial direction at the associated second end portion 12.

Tvärs hålet 16 har en roterbar första cylinderformad komponent 17 anordnats genom vars mantelyta ett tredje hål 18 uppborrats, vilket sammanfaller med det andra hålet 16 och gängats för skruvens 9 andra ände. Första och andra hålet 15, 16 har vidare så förstorats i förhållande till skruvens 9 diame- ter att skruvens snedställning i hålen 15, 16 vid fullt öppnad klamma en- ligt figur 3 medgives. Detta framgår för övrigt av öppningen 10. Även i ändpartiet 12 kan i första hålet 15 anordnas en andra cylinderformad kompo- nent 21. Genom hålet i denna komponents 21 mantelyta löper dock skruven 9 frigående. Skruvhuvudet 19 är konformat för att en fjärrmanövrerad kant- hylsa lättare skall kunna styras in mot skruvhuvudets 19 bas som är en mot hylsan svarande flerkantig mutter. Stoppens 8, 8a placering framgår även av figuren 2. 3 4661415 Figur 3 visar klamman i öppet läge i anslag mot stoppen 8, 8a som för- hindrar att klamman öppnas så mycket att skruven 9 gängas ur den cylinder- formade komponenten 17. Det bör även observeras att ändpartiets 12 mot brickan 20 anliggande del har givits en lämplig kurvform för att minska friktionen mellan ändparti 12 och bricka 20.Across the hole 16, a rotatable first cylindrical component 17 has been arranged through the circumferential surface of which a third hole 18 has been drilled, which coincides with the second hole 16 and is threaded for the other end of the screw 9. The first and second holes 15, 16 have further been enlarged in relation to the diameter of the screw 9 that the inclination of the screw in the holes 15, 16 at fully opened clamp according to figure 3 is permitted. This is also apparent from the opening 10. Also in the end portion 12, a second cylindrical component 21 can be arranged in the first hole 15. However, the screw 9 runs freely through the hole in the circumferential surface of this component 21. The screw head 19 is cone-shaped so that a remotely operated edge sleeve can be more easily guided towards the base of the screw head 19, which is a polygonal nut corresponding to the sleeve. The location of the stop 8, 8a is also shown in Figure 2. Figure 3 shows the clamp in open position abutting the stop 8, 8a which prevents the clamp from opening so much that the screw 9 is threaded out of the cylindrical component 17. It should it is also observed that the part of the end portion 12 abutting the washer 20 has been given a suitable curve shape to reduce the friction between the end portion 12 and the washer 20.

Figur 4 slutligen visar de genomskurna ringsegmenten 3, 4 på plats kring rörändarna 1, 2. Av figuren framgår att rörändarnas 1, 2 flänsar är något konformade samt att urtagningarna i segmenten 3. 4 är formade på motsvar- ande sätt. Detta innebär att när segmenten 3, 4 pressas mot varandra verkar de på flänsarna så att rörändarna 1, 2 pressas mot varandra.Figure 4 finally shows the cut-through ring segments 3, 4 in place around the pipe ends 1, 2. The figure shows that the flanges of the pipe ends 1, 2 are slightly cone-shaped and that the recesses in the segments 3. 4 are formed in a corresponding manner. This means that when the segments 3, 4 are pressed against each other, they act on the flanges so that the pipe ends 1, 2 are pressed against each other.

Klamman fungerar på följande sätt. Skruven 9 vrides så att klamman öppnas genom att ringsegmenten 3, 4 slår mot stoppen 8, 8a. Genom att klamman är frigående i ändpartiet 12 och gängad i ändpartiet 14 öppnas klamman symmetriskt, dvs lika mycket åt båda hållen, och ringsegmenten 3, 4 slår mot stoppen 8, 8a samtidigt. Klammans öppning skall därvid vara så stor att röränden 2 med fläns kan föras in under klamman till kontakt med röränden 1 som redan är fixerad under klamman medelst hållaren 6. Hållaren 6 kan vara en plåt som svetsas vid röränden 1 men den kan också sättas fast med en separat ej visad enkel klamma så att hela skruvanordningen lätt kan flyttas från en rörände till en annan. När klamman 3, 4 öppnas följer komponenten 17 med i den vinkelförändring som sker mellan ändpartiet 14 och skruven 9.The clamp works as follows. The screw 9 is turned so that the clamp is opened by the ring segments 3, 4 hitting the stop 8, 8a. Because the clamp is free in the end portion 12 and threaded in the end portion 14, the clamp opens symmetrically, ie equally in both directions, and the ring segments 3, 4 strike the stop 8, 8a at the same time. The opening of the clamp must then be so large that the pipe end 2 with flange can be inserted under the clamp to contact with the pipe end 1 which is already fixed under the clamp by means of the holder 6. The holder 6 can be a plate which is welded to the pipe end 1 but it can also be fixed with a separate clamp (not shown) so that the entire screw device can be easily moved from one pipe end to another. When the clamp 3, 4 is opened, the component 17 follows the angular change which takes place between the end portion 14 and the screw 9.

Som redan nämnts är det ej gängade hålet utanför komponenten 17 så vitt att denna lägesförändring hos skruven 9 relativt ändpartiet 14 möjliggöres. I ändpartiet kan man antingen använda sig enbart av ett vitt hål som tillåter motsvarande relativa rörelse mellan skruven 9 och ändpartiet 12 eller arrangera en cylinderformad komponent 21 på motsvarande sätt i detta änd- parti 12 som i ändpartiet 14 dock med som tidigare nämnts frigående skruv.As already mentioned, the non-threaded hole is outside the component 17 to the extent that this change of position of the screw 9 relative to the end portion 14 is possible. In the end portion one can either use only a white hole which allows corresponding relative movement between the screw 9 and the end portion 12 or arrange a cylindrical component 21 in a corresponding manner in this end portion 12 as in the end portion 14 but with as previously mentioned free screw.

När rörändarna 1, 2 förts samman roteras skruven 9 åt motsatt håll och klamman slutes också helt symmetriskt. Komponenterna 17, 21 med genom- löpande del av skruven vrider sig nu åt motsatt håll och klamman går till det i figur 2 visade läget.When the pipe ends 1, 2 are brought together, the screw 9 is rotated in the opposite direction and the clamp is also closed completely symmetrically. The components 17, 21 with the continuous part of the screw now turn in the opposite direction and the clamp goes to the position shown in figure 2.

Det är naturligtvis tänkbart att i figur 3 flytta skruvhuvudet 19 till andra änden på skruven 9 och ersätta det med en stoppbricka så att medbringaren kommer att bestå av stoppbrickan 20 på ömse sidor om änd- partiet 12. På så sätt kommer skruvhuvudet 19 och stoppbrickorna 20 också att tjäna som stopp och ersätta stoppen 8, 8a.It is of course conceivable in Figure 3 to move the screw head 19 to the other end of the screw 9 and replace it with a stop washer so that the carrier will consist of the stop washer 20 on either side of the end portion 12. In this way the screw head 19 and the stop washers 20 also to serve as a stop and replace stops 8, 8a.

Claims

466 415 '* PATENT REQUIREMENTS

Remotely operable pipe clamp for connecting pipes in which two facing pipe ends (1, 2) are provided with flanges, which clamp comprises a first and a second semicircular ring segment (3, 4) each provided with a longitudinal recess fitting around the flanges , the first ring segment (S) being formed with a first and a second end portion (11, 12) and the second ring segment (4) being formed with a corresponding third and a fourth end portion (13, 14), the first (11 ) and the third (13) end portion is pivotally mounted on a shaft (5) fixed to one pipe end (1), and the second (12) and fourth (14) end portions are provided with a continuous first (15) and second (16) holes for receiving a latter screw connecting connecting screw (9), which holes are so enlarged in relation to the diameter of the screw that the inclination of the screw in the holes with a fully opened pipe clamp is allowed, one end of the screw being arranged freely in the first the hole (15) and is locked by means of a carrier device (20) in the axial direction at the associated second end portion (12), characterized in that in the second hole (16) a first cylindrical shape rotatable about an axis perpendicular to the longitudinal axis of the screw (9) is arranged component (17), through the circumferential surface of which is provided a continuous hole (18) threaded for the other end of the screw, coinciding with said second hole (16), and that the opening angle of the clamp is limited by stops (8, 8a) preventing the screw from completely threaded from the first threaded component.

Remotely operable pipe clamp according to claim 1, characterized in that a second cylindrical component (21) is arranged in the first hole (15) in a similar manner as in the second hole (16) and that the screw (9) is free-flowing through a hole accommodated in the second component.

Remotely operable pipe clamp according to one of the preceding claims, characterized in that the stops (8, 8a) are arranged such that a symmetrical opening of the clamp is obtained.

Remotely operable pipe clamp according to one of the preceding claims, characterized in that the screw (9) is provided with a cone-shaped head (19) for receiving a remotely operated edge sleeve. of,