NO309533B1

NO309533B1 - Clamping device for floor shutters

Info

Publication number: NO309533B1
Application number: NO920821A
Authority: NO
Inventors: Leif Eskil Andersson
Original assignee: Sjoebo Bruk Ab
Priority date: 1991-03-07
Filing date: 1992-03-03
Publication date: 2001-02-12
Also published as: FI95829B; SE9100680L; DK0502493T3; ATE116026T1; FI95829C; SE9100680D0; DE69200932T2; FI920962A0; NO920821D0; DE69200932D1; NO920821L; EP0502493A1; FI920962A; EP0502493B1

Abstract

The present invention relates to a device at floor drains including an inlet member (2) into which a floor covering (3) is insertable, whereby the floor covering (3) inserted into the inlet member (2) is adapted to engage a downwardly directed wall (4) of said inlet member (2), whereby a clamping ring (5) is provided within the floor covering (3) inserted into the inlet member (2), said clamping ring (5) being adapted to press the floor covering (3) inserted into the inlet member (2) in a direction outwards against the downwardly directed wall (4) and said clamping ring (5) being split and provided with a spring (6) which is adapted to press said clamping ring (5) in a direction outwards against the floor covering (3), whereby one side (7) of the clamping ring (5) facing outwards towards the floor covering (3) includes two surfaces (8, 9) extending at an angle relative to each other and together defining a point (10) facing outwards towards said floor covering (3), and whereby the downwardly directed wall (4) comprises a relative to the clamping ring (5) downwardly/outwardly directed wall portion (11) which at least partially is located on a higher level (H1) than the point (10) of the clamping ring (5) when said clamping ring (5) is situated in an operative position in the inlet member (2). In order to ensure that the clamping ring (5) remains in the operative position despite the clamping force generated by the spring (6), an upper surface (9) of the two surfaces (8, 9) of the clamping ring (5) extending at an angle relative to each other defines an angle ( alpha ) with the horizontal plane (H2) which is equal to or preferably smaller than an angle ( beta ) between the downwardly/outwardly directed wall portion (11) of the downwardly directed wall (4) and the horizontal plane (H1), whereby the angle ( alpha ) between said upper surface (9) and the horizontal plane (H2) lies within a range of 10-55 DEG and is preferably about 45 DEG , whereby the downwardly/outwardly directed wall portion (11) defines with the horizontal plane (H1) an angle ( beta ) lying within a range of 55-65 DEG , said angle being preferably about 60 DEG , and whereby the surfaces (8, 9) of the clamping ring (5) extending relative to each other defines an angle ( gamma ) lying within a range of 100-140 DEG , said angle being preferably about 120 DEG . <IMAGE>

Description

Foreliggende oppfinnelse vedrører en klemanordning ved gulvsluk som oppviser en innløpsdel (2) som et gulvbelegg (3) kan føres ned i, hvor gulvbelegget (3) som er ført ned i innløps-delen (2), er beregnet til å ligge an mot en nedadrettet vegg (4) av innløpsdelen (2), idet en klemring (5) er anordnet innenfor gulvbelegget (3) som er ført ned i innløpsdelen (2), hvilken klemring (5) er beregnet til å presse gulvbelegget (3) som er ført ned i innløpsdelen, i retning utover mot den nedadrettede vegg (4), og hvilken klemring (5) er delt og oppviser en fjær (6) som er beregnet til å presse klemringen (5) i retning utover mot gulvbelegget (3), hvor en side (7) av klemringen (5) vendt utover mot gulvbelegget (3) oppviser to flater (8, 9) som forløper i vinkel i forhold til hverandre, og som sammen danner en spiss (10) vendt utover mot gulvbelegget (3), hvor den nedadrettede vegg (4) oppviser et veggparti (11) som er rettet nedad/utad i forhold til klemringen (5), og som i det minste delvis er plassert på et høy-ere nivå (Hl) enn klemringens (5) spiss (10) når klemringen befinner seg i en funksjonsstilling i innløpsdelen (2), hvor en øvre flate (9) av klemringens (5) to flater (8, 9) som forløper i vinkel i forhold til hverandre, danner en vinkel (a) med horisontalplanet (H2) lik eller fortrinnsvis mindre enn en vinkel ((3) mellom den nedadrettede veggs (4) nedad/utadrettede veggparti (11) og horisontalplanet (Hl), hvor vinkelen (a) mellom nevnte øvre flate (9) og horisontalplanet (H2) ligger i området 10-55° og fortrinnsvis er ca. 45°, og hvor klemringens (5) i forhold til hverandre forløpende flater (8, 9) danner en vinkel ( IS) som ligger i området 100-140°, og som fortrinnsvis er ca. 120°. The present invention relates to a clamping device for a floor drain which exhibits an inlet part (2) into which a floor covering (3) can be led down, where the floor covering (3) which is led down into the inlet part (2) is intended to rest against a downward-facing wall (4) of the inlet part (2), a clamping ring (5) being arranged inside the floor covering (3) which is led down into the inlet part (2), which clamping ring (5) is intended to press the floor covering (3) which is led down into the inlet part, in an outward direction towards the downward-facing wall (4), and which clamping ring (5) is divided and exhibits a spring (6) which is intended to press the clamping ring (5) in an outward direction against the floor covering (3), where one side (7) of the clamping ring (5) facing outwards towards the floor covering (3) has two surfaces (8, 9) which extend at an angle in relation to each other, and which together form a tip (10) facing outwards towards the floor covering (3) ), where the downwardly directed wall (4) exhibits a wall section (11) which is directed downwards/outwards in relation to the clamping ring (5), and which is at least partially placed at a higher level (Hl) than the tip (10) of the clamping ring (5) when the clamping ring is in a functional position in the inlet part (2), where an upper surface (9) of the clamping ring (5)'s two surfaces (8, 9 ) which extend at an angle in relation to each other, form an angle (a) with the horizontal plane (H2) equal to or preferably smaller than an angle ((3) between the downward/outward wall portion (11) of the downward-facing wall (4) and the horizontal plane (Hl ), where the angle (a) between said upper surface (9) and the horizontal plane (H2) lies in the range 10-55° and is preferably approx. 45°, and where relative to each other the surfaces (8, 9) of the clamping ring (5) form an angle (IS) which lies in the range 100-140°, and which is preferably approx. 120°.

Klemringer av det ovenfor angitte slag er allerede kjent gjennom WO-A-90/02232. Imidlertid gir formen på innløpsdelen til dette gulvsluk ingen pålitelig forankring av klemringen, men derimot kan ringen gli oppover og løsne. Clamping rings of the type indicated above are already known through WO-A-90/02232. However, the shape of the inlet part of this floor drain does not provide reliable anchoring of the clamping ring, but instead the ring can slide upwards and loosen.

I DE-A-3 007 511 vises et gulvsluk med en innløpsdel som vi-der seg ut i retning nedover, men problemet her er at klemringen i gulvsluket ikke kan ekspandere i nevneverdig ut-strekning, hvilket innebærer at denne klemring ikke kan utvikle noen langvarig stor klemkraft mot gulvbelegget. DE-A-3 007 511 shows a floor drain with an inlet part which extends downwards, but the problem here is that the clamping ring in the floor drain cannot expand to any significant extent, which means that this clamping ring cannot develop any long-term high clamping force against the floor covering.

Formålet med foreliggende oppfinnelse er å eliminere dette problem og fremskaffe en anordning hvor klemringen ikke kan gli oppover, men likevel utvikle en stor klemkraft mot gulvbelegget. Dette oppnås ved at anordningen oppviser de karak-teristiske trekk angitt i patentkrav 1. The purpose of the present invention is to eliminate this problem and provide a device where the clamping ring cannot slide upwards, but still develop a large clamping force against the floor covering. This is achieved by the device exhibiting the characteristic features stated in patent claim 1.

Siden innløpsdelen er utformet med et kraftig skrånende nedad/utadrettet veggparti, sikres klemringen mot å gli oppover samtidig som den kan ligge an mot gulvbelegget med stort trykk eller stor klemkraft ved at fjæren kan ekspandere klemringen etter at denne i sammenpresset tilstand er ført forbi det nedad/utadrettede veggparti. Since the inlet part is designed with a strongly sloping downwards/outwards wall section, the clamping ring is secured against sliding upwards at the same time that it can rest against the floor covering with great pressure or great clamping force by the spring being able to expand the clamping ring after it has been passed downwards in a compressed state /outward-facing wall section.

Oppfinnelsen vil bli forklart nærmere nedenfor under henvis-ning til vedføyde tegninger, hvor The invention will be explained in more detail below with reference to the attached drawings, where

Fig. 1 er et snitt av en del av et gulvsluk med en anordning ifølge oppfinnelsen; Fig. 2 er et snitt av et gulvsluk ifølge fig. 1 med en til-koplet forhøyningsring; Fig. 3 er et snitt av et nedre parti av forhøyningsringen i-følge fig. 2; og Fig. 4 er en del av et planriss av gulvsluket ifølge fig. 1 med en deri innsatt klemring i delsnitt. Fig. 1 is a section of part of a floor drain with a device according to the invention; Fig. 2 is a section of a floor drain according to fig. 1 with an attached elevation ring; Fig. 3 is a section of a lower part of the elevation ring according to fig. 2; and Fig. 4 is part of a plan view of the floor drain according to fig. 1 with a clamping ring inserted in it in partial section.

På tegningene illustreres et gulvsluk 1 i hvis innløpsdel 2 det er ført ned et gulvbelegg 3, hensiktsmessig et gulvteppe av plast. Dette gulvbelegg 3 skal holdes tett an mot en nedadrettet vegg 4 av innløpsdelen 2 ved hjelp av en klemring 5 som er plassert i denne. Denne klemring 5 er delt (se fig. 4) og oppviser en fjær 6 som tillater at klemringen 5 kan presses sammen tilstrekkelig mye i radial retning til at den kan føres ned i innløpsdelen 2. Når klemringen 5 deretter slip-pes, vil fjæren 6 utvide den radialt utover til den ligger an mot gulvbelegget 3. Herved vil klemringen 5 presse gulvbelegget 3 i retning utover mot innløpsdelens 2 nedadrettede vegg 4, slik at gulvbelegget 3 ligger tett an mot denne vegg 4. Klemringer 5 av denne type fremgår i detalj av søkers svenske patent nr. 8802915-2. The drawings illustrate a floor drain 1 in whose inlet part 2 a floor covering 3, suitably a plastic floor carpet, is brought down. This floor covering 3 must be held tightly against a downward-facing wall 4 of the inlet part 2 by means of a clamping ring 5 which is placed in it. This clamping ring 5 is split (see fig. 4) and has a spring 6 which allows the clamping ring 5 to be pressed together sufficiently in the radial direction so that it can be guided down into the inlet part 2. When the clamping ring 5 is then released, the spring 6 expand it radially outwards until it rests against the floor covering 3. In this way, the clamping ring 5 will press the floor covering 3 outwards towards the downward-facing wall 4 of the inlet part 2, so that the floor covering 3 rests closely against this wall 4. Clamping rings 5 of this type can be seen in detail from applicant's Swedish patent no. 8802915-2.

Klemringens 5 side 7 som er vendt utover mot gulvbelegget 3, oppviser to flater 8 og 9 som forløper i vinkel i forhold til hverandre for å danne en spiss 10 som er vendt utover mot gulvbelegget 3. Innløpsdelens 2 nedadrettede vegg 4 oppviser et veggparti 11 som er rettet nedad/utad i forhold til klemringen 5, og dette veggparti 11 befinner seg i det minste delvis på et noe høyere nivå Hl enn nivået H2 som klemringens 5 spiss 10 befinner seg på når denne inntar sin virksomme stilling i innløpsdelen 2, dvs. når den ligger an mot et sete 2a som befinner seg i innløpsdelen 2. The side 7 of the clamping ring 5, which faces outwards towards the floor covering 3, exhibits two surfaces 8 and 9 which extend at an angle in relation to each other to form a tip 10 which faces outwards towards the floor covering 3. The downward-facing wall 4 of the inlet part 2 exhibits a wall section 11 which is directed downwards/outwards in relation to the clamping ring 5, and this wall section 11 is located at least partially at a somewhat higher level H1 than the level H2 at which the tip 10 of the clamping ring 5 is located when it takes its active position in the inlet part 2, i.e. when it rests against a seat 2a located in the inlet part 2.

Videre er vinkelen a mellom horisontalplanet (i dette tilfelle vist som linje H2 på fig. 1) og klemringens 5 øvre flate 9 lik eller fortrinnsvis mindre enn vinkelen (3 mellom nevnte veggparti 11 og horisontalplanet (i dette tilfelle vist som en linje Hl på fig. 1). Herved forutsettes at gulvsluket 1 plasseres i tiltenkt stilling i forhold til horisontalplanet - dersom gulvsluket 1 plasseres noe skrått i forhold til denne tiltenkte stilling, vil vinklene a og P riktignok forandres i tilsvarende grad i forhold til horisontalplanet, men nevnte forhold mellom disse vinkler gjelder selv i slike tilfeller. Ved hjelp av veggpartiet 11 og nevnte forhold mellom vinklene a og p sikres at verken den del av gulvbelegget 3 som befinner seg mellom veggpartiet 11 og klemringens 5 spiss 10 eller klemringen 5, vil komme til å gli oppover f.eks. om gulvbelegget 3 krymper, hvilket innebærer en gjenværende tetningseffekt mellom gulvbelegget 3 og innløpsdelen 2. Furthermore, the angle a between the horizontal plane (in this case shown as line H2 in fig. 1) and the upper surface 9 of the clamping ring 5 is equal to or preferably smaller than the angle (3) between said wall part 11 and the horizontal plane (in this case shown as a line Hl in fig. . 1).It is hereby assumed that the floor drain 1 is placed in the intended position in relation to the horizontal plane - if the floor drain 1 is placed somewhat obliquely in relation to this intended position, the angles a and P will of course change to a corresponding degree in relation to the horizontal plane, but the said relationship between these angles apply even in such cases. With the help of the wall part 11 and the aforementioned relationship between the angles a and p, it is ensured that neither the part of the floor covering 3 which is located between the wall part 11 and the tip 10 of the clamping ring 5 or the clamping ring 5 will slide upwards e.g. if the floor covering 3 shrinks, which implies a residual sealing effect between the floor covering 3 and the inlet part 2.

Som det fremgår av fig, 1, ligger det nedad/utadrettede veggparti 11 hensiktsmessig på et noe høyere nivå enn klemringens 5 spiss 10 (på fig. 1 tilsvarer denne nivåforskjell avstanden mellom nivåene Hl og H2). As can be seen from Fig. 1, the downward/outward-directed wall part 11 is conveniently located at a somewhat higher level than the tip 10 of the clamping ring 5 (in Fig. 1, this difference in level corresponds to the distance between levels H1 and H2).

Vinkelen a mellom klemringens 5 øvre flate og horisontalplanet H2 ligger hensiktsmessig innenfor området 10-55°, fortrinnsvis kan vinklene a være ca. 45°. En spiss 10 med hensiktsmessig form oppnås om vinkelen 6 mellom klemringens 5 øvre flate 9 og nedre flate 8 ligger i området 100-140°. Fortrinnsvis kan vinkelen 6 være ca. 120°. Det nedad/utadrettede veggparti 11 danner hensiktsmessig en vinkel P med horisontalplanet Hl i området 55-65°. Fortrinnsvis kan denne vinkel P være ca. 60°. The angle a between the upper surface of the clamping ring 5 and the horizontal plane H2 is conveniently within the range 10-55°, preferably the angles a can be approx. 45°. A tip 10 with an appropriate shape is obtained if the angle 6 between the clamping ring 5's upper surface 9 and lower surface 8 is in the range 100-140°. Preferably, the angle 6 can be approx. 120°. The downward/outward-directed wall part 11 conveniently forms an angle P with the horizontal plane Hl in the range 55-65°. Preferably, this angle P can be approx. 60°.

Den ovennevnte innløpsdel 2 kan hensiktsmessig også anvendes for påføring av en forhøyningsring 12 dersom gulvplanet he-ves, og det er ønskelig å beholde det eksisterende gulvsluk 1, men likevel tilveiebringe en innløpsdel 2 som ligger i ni-vå med det hevede gulvplan. Denne forhøyningsring 12 kan smekkes fast til gulvslukets innløpsdel 2 ved at nevnte for-høyningsring 12 oppviser et smekkparti 13 som er beregnet til å føres i det minste delvis forbi det nedad/utadrettede veggparti 11 til smekkpartiet 13 er smekket fast til innløpsdelen 2 (se fig. 2) . The above-mentioned inlet part 2 can conveniently also be used for applying an elevation ring 12 if the floor level is raised, and it is desirable to retain the existing floor drain 1, but still provide an inlet part 2 that is level with the raised floor level. This elevation ring 12 can be snapped to the inlet part 2 of the floor drain by said elevation ring 12 having a snap part 13 which is intended to be guided at least partially past the downward/outward wall part 11 until the snap part 13 is snapped to the inlet part 2 (see fig. .2).

Smekkpartiet 13 oppviser hensiktsmessig en spiss 14 som gjennom nedtrykking av forhøyningsringen 12 i innløpsdelen 2 kan legges an mot det nedad/utadrettede veggparti 11 eller fortrinnsvis mot den nedadrettede vegg 4 umiddelbart under veggpartiet 11. Spissen 14 er hensiktsmessig anordnet i en slik avstand ovenfor forhøyningsringens 12 underkant 15 at forhøy-ningsringen 12 i sin virksomme stilling er fastklemt mellom setet 2a og veggpartiet 11 eller den nedadrettede vegg 4 umiddelbart under veggpartiet 11 avhengig av hvor spissen 14 ligger an. Dette innebærer at forhøyningsringen 12 i sin virksomme stilling ikke kan bevege seg i aksial retning i forhold til gulvsluket 1. The lip part 13 suitably has a tip 14 which, by pressing down the elevation ring 12 in the inlet part 2, can be placed against the downward/outward facing wall part 11 or preferably against the downward facing wall 4 immediately below the wall part 11. The tip 14 is conveniently arranged at such a distance above the elevation ring 12 lower edge 15 that the elevation ring 12 in its active position is clamped between the seat 2a and the wall part 11 or the downward-directed wall 4 immediately below the wall part 11 depending on where the tip 14 lies. This means that the elevation ring 12 in its active position cannot move in an axial direction in relation to the floor drain 1.

Smekkpartiet 13 kan hensiktsmessig oppvise en utside 16 som har samme eller lignende form som klemringens 5 utside 7. Så-ledes kan smekkpartiet 13 oppvise en øvre flate 17 som har samme vinkel a til horisontalplanet som klemringens 5 flate 9 (se fig. 3). Videre kan utsiden 16 oppvise en nedre flate 18, og vinkelen mellom disse flater 17, 18 kan motsvare vinkelen 6 hos motsvarende flater 8, 9 på klemringen 5. I den nedre flate 18 kan være anordnet et spor 19 for en tetnings-ring 20, hvilket er beregnet til å bevirke tetning mellom innløpsdelen 2 og forhøyningsringens 12 utside. The snap part 13 can suitably have an outer side 16 which has the same or similar shape as the outer side 7 of the clamping ring 5. Thus, the snap part 13 can have an upper surface 17 which has the same angle a to the horizontal plane as the surface 9 of the clamping ring 5 (see fig. 3). Furthermore, the outside 16 can have a lower surface 18, and the angle between these surfaces 17, 18 can correspond to the angle 6 of corresponding surfaces 8, 9 on the clamping ring 5. In the lower surface 18, a groove 19 can be arranged for a sealing ring 20, which is intended to effect a seal between the inlet part 2 and the outside of the elevation ring 12.

For å kunne bevirke like god og varig tetning mellom gulvbelegget 3 som er blitt lagt på det nye gulvplan, og forhøy-ningsringens 12 innløpsdel 2, er denne innløpsdel 2 utformet på samme måte som gulvslukets 1 innløpsdel 2, dvs. med et nedad/innadrettet veggparti 11 osv., og de deler som i for-høyningsringens 12 innløpsdel 2 motsvares av samme deler av gulvslukets 1 innløpsdel 2, har for forenklingens skyld fått samme henvisningstall på fig. 2. In order to achieve an equally good and lasting seal between the floor covering 3 that has been laid on the new floor level, and the inlet part 2 of the elevation ring 12, this inlet part 2 is designed in the same way as the inlet part 2 of the floor drain 1, i.e. with a downward/inward direction wall part 11 etc., and the parts which in the pre-elevation ring 12 inlet part 2 correspond to the same parts of the floor drain 1 inlet part 2, have been given the same reference number in fig. for the sake of simplification. 2.

Det kan nevnes att innløpsdelen 2 hensiktsmessig kan oppvise en nedadsvingt flate 21 via hvilken gulvbelegget 3 strekker seg nedover mot den nedadrettede vegg 4. Denne nedadsvingte flate 21 kan nedentil danne en fortrengning 22 av innløpsde-len 2, og det nedad/utadrettede veggparti 11 kan befinne seg umiddelbart under denne fortrengning 22 (se fig. 1). Det nedad/utadrettede veggparti 11 går hensiktsmessig over i et vertikalt eller i hovedsak vertikaltrettet avsnitt 23 av den nedadrettede vegg 4, og dette avsnitt 23 har fortrinnsvis en ujevn del 24 som befinner seg på samme nivå H2 som klemringens 5 spiss 10. It can be mentioned that the inlet part 2 can conveniently have a downwardly curved surface 21 via which the floor covering 3 extends downwards towards the downwardly directed wall 4. This downwardly curved surface 21 can below form a displacement 22 of the inlet part 2, and the downwardly/outwardly directed wall part 11 can be immediately below this displacement 22 (see fig. 1). The downward/outward-directed wall part 11 conveniently transitions into a vertical or essentially vertically-directed section 23 of the downward-directed wall 4, and this section 23 preferably has an uneven part 24 which is at the same level H2 as the tip 10 of the clamping ring 5.

Gjenstanden ifølge oppfinnelsen er ikke begrenset til den il-lustrerte utførelse, men kan variere innenfor rammen av de etterfølgende patentkrav. Som eksempel på noen alternativer kan nevnes at innløpsdelen ikke nødvendigvis behøver være sirkulær og eventuelt ikke klemringen heller. Klemringen kan for øvrig være av en annen type enn den viste. The object according to the invention is not limited to the illustrated embodiment, but can vary within the scope of the subsequent patent claims. As an example of some alternatives, it can be mentioned that the inlet part does not necessarily have to be circular and possibly not the clamping ring either. The clamping ring can also be of a different type than the one shown.

Claims

1. Clamping device for a floor drain which exhibits an inlet part (2) into which a floor covering (3) can be led down, where the floor covering (3) which is led down into the inlet part (2) is intended to rest against a downward-facing wall (4 ) of the inlet part (2); where a clamping ring (5) is arranged within the floor covering (3) which is led down into the inlet part, which clamping ring (5) is intended to press the floor covering (3) introduced into the inlet part in a direction outwards towards the downward-facing wall (4), and which clamping ring (5) is divided and exhibits a spring (6) which is intended to press the clamping ring (5) outwards towards the floor covering (3); where one side (7) of the clamping ring (5) facing outwards towards the floor covering (3) has two surfaces (8, 9) which extend at an angle in relation to each other, and which together form a tip (10) facing outwards towards the floor covering (3) ), where the downwardly directed wall (4) exhibits a wall portion (11) directed downwards/outwards in relation to the clamping ring (5) which is at least partially located at a higher level (Hl) than the tip (10) of the clamping ring (5) when the clamping ring (5) is in an active position in the inlet part (2); where an upper surface (9) of the two surfaces (8, 9) of the clamping ring (5) which extend at an angle in relation to each other, forms an angle (a) with the horizontal plane (H2), which is equal to or preferably less than a angle ((3) between the downward/outward-facing wall part (11) of the downward-facing wall (4) and the horizontal plane (Hl); where the angle (a) between said upper surface (9) and the horizontal plane (H2) is in the range 10-55° and is preferably about 45°, and where the surfaces (8, 9) of the clamping ring (5) which extend in relation to each other, form an angle (y) that lies in the range 100-140° and is preferably about 120°, characterized by that the angle (<p>) between the downward/outward-facing wall part (11) and the horizontal plane (Hl) lies in the range 55-65° and is preferably around 60°, and that the spring (6) allows the clamping ring (5) can be pressed together sufficiently in the radial direction so that the clamping ring (5) can be guided so far down into

inlet part (2) that the tip (10) is located below the level (Hl) at which the wall part (11) is located, the spring (6) being arranged to be able to extend or expand the clamping ring (5) in the radial direction to the clamping ring (5) ) rests against the floor covering (3).

2. Device according to patent claim 1, characterized in that the inlet part (2) exhibits a downwardly curved surface (21) which forms a displacement (22) of the inlet part (2), that the downward/outward wall part (11) is located below this displacement (22) ), and that the downward/outward-directed wall part (11) below transitions into a vertical or essentially vertical section (23) of the downward-directed wall (4), which section (23) preferably exhibits an uneven part (24) which is at the same level (H2) as the tip (10) of the clamping ring (5).

3. Device according to one of the preceding patent claims, where an elevation ring (12) can be guided down into the inlet part (2) of the floor drain (1), characterized in that the elevation ring (12) can be snapped to the inlet part of the floor drain (1) (2) in that the elevation ring (12) exhibits a snap part (13) intended to cooperate with the outwardly/downwardly directed wall part (11), which elevation ring (12) is intended to be guided in a downward direction at least partially past the outward /downward facing wall part (11) until the snap part (13) is snapped firmly.

4. Device according to claim 3, characterized in that the snap part (13) of the elevation ring (12) has a tip (14) which can be placed against the downward/outward-facing wall part (11) of the inlet part (2) or preferably against a downward-facing wall (4 ) of the inlet part (2) immediately below said wall part (11) .

5. Device according to claim 4, characterized in that the tip (14) of the snap part (13) is arranged at such a distance above a lower edge (15) of the elevation ring (12) that this is in an active position, where it rests against a seat ( 2a) in the inlet part (2), is clamped between the seat (2a) and the downward/outward facing wall part (11) or the part of the downward facing wall (4) immediately below the wall part (11) against which the tip (14) rests.

6. Device according to any one of claims 3-5, where the elevation ring has an inlet part (2) into which a floor covering (3) can be led down, where the floor covering (3) led down into the inlet part (2) is intended to rest on against a downwardly directed wall (4) of the inlet part (2); where a clamping ring (5) is arranged inside the floor covering (3) which is led down into the inlet part (2) of the elevation ring (12), which clamping ring (5) is intended to press the floor covering (3) which is led down into the the inlet part of the raising ring, in the outward direction towards the downward-facing wall (4), and which clamping ring (5) is divided and exhibits a spring (6) which is intended to press the clamping ring (5) in the outward direction against the floor covering (3); where one side (7) of the clamping ring (5) facing outwards towards the floor covering (3) has two surfaces (8, 9) which extend at an angle in relation to each other, and which together form a tip (10) facing outwards towards the floor covering (3) ); where the downwardly directed wall (4) exhibits a wall portion (11) directed downwards/outwards in relation to the clamping ring (5) which is at least partially located at a higher level (Hl) than the tip (10) of the clamping ring (5) when the clamping ring (5) ) is in an active position in the inlet part (2); where an upper surface (9) of the two surfaces (8, 9) of the clamping ring (5) led down into the inlet part (2) of the pre-elevation ring (12), which extend in relation to each other, forms an angle (a) with the horizontal plane (H2), which angle is equal to or preferably less than an angle (P) between the downward/outward wall portion (11) of the downwardly directed wall (4) and the horizontal plane (Hl); where the angle (a) between said upper surface (9) and the horizontal plane (H2) lies in the range 10-55° and is preferably approx. 45°, and where the surfaces (8, 9) of the clamping ring (5) extend in relation to

each other, form an angle (y) which lies in the range 100-140°, and which is preferably approx. 120°, characterized in that the angle (P) between the downward/outward facing wall part (11) and the horizontal plane (Hl) lies in the range 55-65° and is preferably approx. 60°, and that the spring (6) allows the clamping ring (5) to be pressed together sufficiently in the radial direction so that the clamping ring (5) can be guided so far down into the inlet part (2) of the elevation ring (12) that the tip (10) is located below the level (Hl) on which the wall part (11) is located, the spring (6) being arranged to be able to extend or expand the clamping ring (5) in the radial direction until the clamping ring (5) rests against the floor covering (3).