DK159935B

DK159935B - drainpipe

Info

Publication number: DK159935B
Application number: DK403981A
Authority: DK
Inventors: Bernhard Kessel
Original assignee: Bernhard Kessel
Priority date: 1981-07-11
Filing date: 1981-09-11
Publication date: 1990-12-31
Also published as: DK403981A; FI75019C; FI75019B; DE3127487A1; FR2509342B1; FR2509342A1; DE3127487C2; GB2101649B; ATA364681A; SE8105665L; NL8200060A; NO814017L; NO155062C; AT375989B; NO155062B; GB2101649A; FI812603L

Description

DK 159935 BDK 159935 B

- i -- i -

Den foreliggende opfindelse angår et afløbsror af den i krav l's indledning angivne art.The present invention relates to a drain pipe of the kind set forth in claim 1.

Fra beskrivelsen til dansk patentans. nr. 5269/78 kendes et 5 sådant afløbsror, hvor en eller to tilbageslagsklapper er udformet som indsatsdele, som fra oven kan indføres i i afløbsroret udformede, til klapperne formpassende udskæringer. Det på skaktkanten anbragte dæksel kan udnyttes til at fastholde tilbageslagsklapperne. En særlig formgivning af 10 afløbsrorets indervæg er nødvendig for at holde tilbageslagsklapperne på plads.From the description to the Danish patent. No. 5269/78 discloses such a drain pipe, in which one or two non-return valves are designed as insert parts which can be inserted from above into mold valves formed in the drain pipe. The cover located on the shaft edge can be utilized to hold the recoil flaps. A special shaping of the inner wall of the drain pipe is required to hold the check valves in place.

Formålet med opfindelsen er at anvise et afløbsror af den omhandlede art, som er simpelt at udforme, og hvis indre, 15 efter at dækslet er aftaget, er fuldstændig frit tilgængeligt for rengøring. Især skal det tilstræbes, at dækslet for et sådant afløbsror som en selvstændig byggeenhed tillader en simpel ændring af et i drift værende afløbsror uden tilbageslagsklap til et afløbsror med en eller flere 20 sådanne tilbageslagsklapper, udet at det i den' forbindelse er nødvendigt at ændre på selve afløbsroret.The object of the invention is to provide a drain pipe of the kind in question which is simple to design and whose interior, 15 after removal of the cover, is completely freely available for cleaning. In particular, it is intended that the cover for such a drain pipe as an independent building unit permits a simple change from a non-return drain pipe to a drain pipe with one or more such return valves, unless it is necessary in this connection to change the drainage itself.

Dette opnås ifølge opfindelsen ved den i krav 1 anviste konstruktion.This is achieved according to the invention by the construction of claim 1.

2525

Ved denne udformning af dækslet er det ikke nødvendigt, at selve afløbsroret er forberedt for montering af en eller flere tilbageslagsklapper. Når dækslet er anbragt på af-løbsskakten, sidder den eller de tilhørende tilbageslags-30 klapper i brugsstilling. Efter at dækslet er fjernet, er afløbsskaktens indre frit tilgængelig for rengøring. Også allerede i drift værende afløbsror kan let ændres, idet et simpelt dæksel blot udskiftes med et dæksel med en eller flere tilbageslagsventiler. Der opstår ikke problemer med 35 at opnå en tilstrækkelig tæthed, da hver tilbageslagsklap uden videre tætnende slutter sig til afløbsrorets tværsnit.In this design of the cover, it is not necessary that the drain pipe itself is prepared for mounting one or more non-return flaps. When the cover is positioned on the drain shaft, the recoil (s) or flap (s) associated therewith are in the operating position. After the cover is removed, the interior of the drain shaft is freely accessible for cleaning. Even drainage pipes already in operation can be easily changed, simply replacing a simple cover with a cover with one or more check valves. No problem is encountered in obtaining a sufficient density, as each recoil flap joins the cross-section of the drain pipe without any sealing.

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- 2 -- 2 -

Fremstillingen af et sådant med en eller flere tilbageslagsklapper forsynet dæksel er væsentlig simplere end udformningen i et eventuelt eksisterende afløbsrør af optageorganer for indstiksdele. Tilbageslagsklapperne sidder 5 godt fast i afløbsrøret, således at også større væsketryk kan imødegås.The manufacture of such a cover provided with one or more non-return flaps is substantially simpler than the design in any existing drainage pipe of insertion means for insertion parts. The non-return valves are firmly attached to the drain pipe so that even greater fluid pressure can be countered.

En hensigtsmæssig udførelsesform er anvist i krav 2. Ved denne kan tilbageslagsklappen indsættes særlig nøjagtigt i 10 afløbsrøret eller dettes afløbsskakt. Pakningen gør det muligt at eftermontere et dæksel med tilbageslagsklap også i gamle rør, selv når disse er fremstillet af støbejern, hvorhos pakningen udligner eventuelle unøjagtigheder i vægkonturen. Pakningen kan henigtsmæssigt være i ét med en 15 eventuel dækselpakning.A suitable embodiment is described in claim 2. In this case, the check valve can be inserted particularly accurately into the drain pipe or its drain shaft. The gasket makes it possible to retrofit a cover with a flap flap even in old pipes, even when made of cast iron, where the gasket offsets any inaccuracies in the wall contour. Conveniently, the gasket may be in combination with a possible cover gasket.

Det er fordelagtigt, at afløbsroret udformes som anvist i krav 4. Et sådant skørt er meget simpelt at udforme, og det er formstabilt. Da det er i ét med dækslet, er det i 20 stand til at modstå store tryk. Endvidere er det ikke vanskeligt at udtage tilbageslagsklappen, selv om den efter længere tids drift er "groet fast". Via dækslet er det nemlig muligt at udøve en stor løsnende kraft på klappen.Advantageously, the drain pipe is designed as described in claim 4. Such a skirt is very simple to design and it is stable to shape. Since it is integral with the cover, it is able to withstand high pressures. Furthermore, it is not difficult to remove the non-return valve, even if after a long period of operation it has "grown". Because of the cover, it is possible to exert a large loosening force on the flap.

25 ved den i krav 5 anviste udformning er lejet ikke umiddelbart udsat for gennemstrømmende spildevand. Herved er et åbent leje muligt, således at en svingklap hurtigt kan fjernes eller udskiftes.In the embodiment of claim 5, the bed is not immediately exposed to effluent. Hereby an open bearing is possible so that a swivel flap can be quickly removed or replaced.

30 ved den i krav 6 anviste udformning sikrer man, at klappen kan lukke automatisk, selv om afløbsroret har et let fald i strømningsretningen. At skørtet er bredere forneden, medfører også en bedre understøtning i røret.30 in the configuration of claim 6, it is ensured that the flap can close automatically even though the drain pipe has a slight decrease in the flow direction. That the skirt is wider at the bottom also gives better support in the tube.

35 ved den i krav 7 anviste udformning opnås en god positionssikring af pakningen for dækslet og tilbageslagsklappen, således at pakningen ikke forskydes ved indføring af klap- - 3 -In the embodiment of claim 7, a good positioning of the cover for the cover and the return flap is achieved, so that the package is not displaced by the insertion of the flap.

DK 159935 BDK 159935 B

pen.pen.

Ved den i krav 8 anviste udformning kan et i drift værende afløbsror, uden at det kræver nogen form for ændring af 5 rørafsnit eller afløbsskakt, eftermonteres med en eller flere tilbageslagsklapper blot ved udskiftning af dækslet. Dækslet kan være i ét med et eller flere skørter herfor, eller disse kan fastskrues eller på anden måde fastgøres til dækslet, inden dette påsættes afløbsskakten.In the embodiment of claim 8, a drain pipe in operation, without requiring any change of pipe sections or drain shaft, can be retrofitted with one or more non-return valves simply by replacing the cover. The cover may be integral with one or more skirts thereof, or these may be screwed or otherwise secured to the cover prior to attaching the drain shaft.

1010

Ved den i krav 9 anviste udformning kan i hvert fald en tilbageslagsklap blokeres i lukket stilling, hvis behov herfor opstår. Da det ofte forekommer, at klappen efter at have været lukket gennem længere tid er "groet fast", er 15 det i den sammenhæng fordelagtigt med den i krav 10 anviste udformning.In the embodiment according to claim 9, at least a kickback flap can be blocked in the closed position if the need arises. Since it often seems that the flap, after being closed for a long time, has "healed", it is advantageous in this context to have the design according to claim 10.

Ved den i krav 11 anviste udformning opnås, at skørtet støttes så fast, at tilbageslagsklappen kan modstå selv de 20 største tilbageslagskræfter. Alternativt kan man herfor anvende den i krav 12 anviste udformning.The design according to claim 11 achieves that the skirt is supported so firmly that the kickback flap can withstand even the 20 greatest kickback forces. Alternatively, the design according to claim 12 can be used for this.

Opfindelsen skal i det følgende forklares nærmere i forbindelse med tegningen, hvor 25 fig. 1 viser et længdesnit gennem et afløbsror med to tilbageslagsklapper, fig. 2 fra siden og delvis gennemskåret en første udførelsesform for et dæksel med en tilbageslagsklap, 30 fig. 3 tilsvarende en anden udførelsesform for et dæksel med to tilbageslagsklapper, og fig. 4 og 5 snit gennem to udførelsesformer for forbindelsen mellem tilbageslagsklappen og afløbsrorets bund.BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be explained in more detail in connection with the drawing, in which FIG. 1 is a longitudinal section through a drain pipe with two non-return valves; FIG. 2 is a side elevational view, partially cut away, of a first embodiment of a cover with a non-return flap; FIG. 3 corresponds to another embodiment of a cover with two non-return flaps, and FIG. 4 and 5 are sections through two embodiments of the connection between the check valve and the bottom of the drain pipe.

Det i fig. 1 viste afløbsror 1 består af et retlinet rørafsnit 2 og en fra oven i dette rørafsnit udmundende afløbs- 35 - 4 -The FIG. 1, the drain pipe 1 shown consists of a rectilinear pipe section 2 and a drainage opening from above in this pipe section 35 - 4 -

DK 159935 BDK 159935 B

skakt 3. Afløbsskakten har set fra oven i det væsentlige firkantet tværsnit og danner med rørafsnittet 2 to skæringslinier 4. Skaktens øvre kant 6 er plan og tjener som understøtning for et dæksel 7. Afløbsroret 1 indgår i et 5 kanalsystem med en sædvanlig strømningsretning fra venstre mod højre i fig. 1, jf. pilen 5. I tilfælde af en opstem-ning strømmer kanalgasser og opstemmet vand i den modsatte retning. Ved den i fig. 1 viste udførelsesform har afløbsroret 1 to efter hinanden i strømningsretningen 5 anbragte 10 tilbageslagsklapper og R2, der åbnes automatisk ved tilbagestrømning, altså mod pilens 5 retning. Tilbageslagsklapperne R^ og R2 er anbragt på undersiden 8 af dækslet 7 og er foretrukket i ét med dette. Alternativt er tilbageslagsklapperne eller deres ophæng skruet fast til dækslet 7 15 eller indført i eksempelvis svalehaleføringer.shaft 3. The drain shaft has a substantially square cross-section from above and forms two intersecting lines with the pipe section 2 4. The upper edge 6 of the shaft is planar and serves as a support for a cover 7. The drain pipe 1 forms part of a 5 channel system with a usual flow direction from the left. to the right in FIG. 1, cf. arrow 5. In the event of a stir, duct gases and stirred water flow in the opposite direction. In the embodiment shown in FIG. 1, the drain rudder 1 has two setback valves and two R2, which are opened automatically by backflow, two successively in the flow direction 5, i.e. towards the direction of the arrow 5. The check valves R1 and R2 are located on the underside 8 of the cover 7 and are preferably integral therewith. Alternatively, the check valves or their suspension are screwed to the cover 7 15 or inserted into, for example, dovetail guides.

Dækslet 7, som har en om skaktens kant gribende kantflange, er indvendig forsynet med en omløbende pakning 9 og kan ved hjælp af ikke viste holdeorganer være fastgjort til skak-20 ten. Fra dækslets underside 8 strækker sig to massive ophæng eller skørter 10, hvis højde og diameter er tilpasset afløbsrorets 1 indre tværsnit, således at det sidder ubevægeligt og tætnende i afløbsroret på den viste måde. Hvert skørt 10 har en omløbende not 11 for en pakning 12, som gi-25 ver en yderligere tætning mod afløbsrorets indervæg 38. Pakninger 9 og 12 er hensigtsmæssigt udformet i ét stykke og kan eventuelt være fastklæbet.The cover 7, which has an edge flange engaging the edge of the shaft, is provided internally with a circumferential gasket 9 and can be secured to the shaft by means of not shown. From the underside 8 of the cover extend two solid suspensions or skirts 10, the height and diameter of which are adapted to the inner cross-section of the drain pipe 1, so that it sits motionless and seals in the drain pipe in the manner shown. Each skirt 10 has a circumferential groove 11 for a gasket 12 which provides a further seal against the inner wall of the drain pipe 38. Gaskets 9 and 12 are conveniently formed in one piece and may optionally be adhered.

I den nederste halvdel af hvert skørts 10 rand er, af form-20 tekniske grunde og til opnåelse af en bedre afstøtning og tætning, anbragt en omløbende not 13. På hvert skørt 10 er nedstrøms anbragt et pakningssæde 14, som omgiver en ikke vist gennemstrømningsåbning. Hvert skørt 10 bliver nedad således bredere eller skråner på en sådan måde, at pak-25 ningssædet 14 danner en vinkel med det lodrette plan.A circular groove 13. A circular groove 13 is placed on each skirt 10 downstream of a skirt seat 14 surrounding the rim of each skirt 10 for technical reasons and for better repositioning and sealing, . Each skirt 10 becomes downwardly wider or sloping in such a way that the packing seat 14 forms an angle with the vertical plane.

Over pakningssædet og gennemstrømningsåbningen er der i - 5 -Above the packing seat and flow opening are in - 5 -

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skørtet 10 en udskæring 15 med en forhøjning 16, som tjener som leje for en svingtap 17. Tappen er anbragt på en arm på en svingklap 19. Klappen 19 har en linseformet endeflade 20 og kan alene ved tyngdekraftens påvirkning ligge tætnende 5 an mod pakningssædet 14. En i fig. 1 ikke vist pakning tjener til en yderligere afspærring, når svingklappen 19 er i sin lukkende stilling. I stedet for en svingklap 19 kan benyttes en kugleformet svømmer 19a, der i fig. 1 er vist med punkteret streg. For denne findes eksempelvis i bunden af afløbsroret en, ligeledes med punkteret streg vist, føringsflade 21, der sørger for, at svømmeren 19a automatisk søger at rulle mod sin gennemstrømningsåbningen lukkende stilling. Svømmeren 19a fastholdes mod bevægelse for langt i strømningsretningen 5 af den anden tilbageslagsklap f^· 15 Er denne anden klap udført med en kugleformet svømmer, benyttes ikke viste organer til at holde denne svømmer nær pakningssædet.the skirt 10 is a cutout 15 with an elevation 16, which serves as a bearing for a pivot pin 17. The pin is mounted on an arm of a pivot flap 19. The flap 19 has a lens-shaped end face 20 and can only, by gravity, be sealing 5 against the packing seat 14 One shown in FIG. 1, the gasket not shown serves for a further shut-off when the pivot flap 19 is in its closing position. Instead of a swing flap 19, a spherical swimmer 19a may be used, which in FIG. 1 is shown in dotted line. For this, there is, for example, at the bottom of the drain pipe a guide surface 21, also shown with a dotted line, which ensures that the swimmer 19a automatically seeks to roll against its flow opening closing position. The swimmer 19a is held against movement too far in the flow direction 5 by the second kickback flap 15 If this second flap is made with a spherical swimmer, no means shown to keep this swimmer close to the packing seat is used.

Oversiden af dækslet 7 har ribber 22, som giver stor styr-20 ke, også selv om dækslet er fremstillet af tyndvægget plast. Af samme grund har dækslet 7 fortykkelser 23 for eventuelle holdeorganer. Ved den i fig. 1 venstre side har dækslet 7 en kuplet forhøjning 24 med en gennemboring 25.The upper surface of the cover 7 has ribs 22 which provide great strength, even though the cover is made of thin-walled plastic. For the same reason, the cover has 7 thicknesses 23 for any holding means. In the embodiment shown in FIG. On the left side, the cover 7 has a domed elevation 24 with a bore 25.

I denne gennemboring 25 er en aksel 26 med et håndtag 27 25 drejeligt og tætnende lejret. Inde i forhøjningen er et re guleringsorgan 28 i form af en trykknast med en trykflade 29 fastgjort til akslen 26. Ved hjælp af reguleringsorganet 28 kan tilbageslagsklappen efter behov blokeres i sin lukkende stilling, ved at håndtaget 27 drejes mod uret, 30 indtil trykfladen 29 ligger mod armen 18 og presser klappen 19 mod sædet 14.In this piercing 25, a shaft 26 with a handle 27 25 is rotatably and sealingly mounted. Inside the elevation, a throttle member 28 in the form of a thrust pin with a thrust face 29 is secured to the shaft 26. By means of the thruster 28, the recoil flap can be blocked in its closing position as required by turning the handle 27 counterclockwise 30 until the thrust surface 29 is against the arm 18 and pressing the flap 19 against the seat 14.

Til reguleringsorganet 28 er endvidere fastgjort et hageformet udløseorgan 30, som kan bringes til at samvirke med 35 en udskæring 31 i armen 18. Herved er det muligt ved drejning af håndtaget med uret at rykke en til sædet 14 fast-klæbet klap 19 løs.Also attached to the regulating means 28 is a hook-shaped release means 30 which can be brought to cooperate with 35 a cut-out 31 in the arm 18. This makes it possible to unscrew a flap 19 fixed to the seat 14 by turning the handle clockwise.

DK 159935 BDK 159935 B

- 6 - I forhøjningen 24 er der plads for armens 18 åbningsbevægelse, således at afløbsskakten 3 selv kan have ringe højde.In the elevation 24, there is room for the opening movement of the arm 18, so that the drain shaft 3 itself can be of low height.

5 Den i fig. 1 højre, anden tilbageslagsklap R2 er stort set udformet som den venstre klap og vil ikke blive nærmere omtalt. Det skal bemærkes, at der mellem undersiden af ventilklappen 19 og bunden af afløbsroret 1 findes en fri afstand a, som sikrer, at aflejrede forureninger ikke hindrer 10 klappens virke.5 The embodiment of FIG. In the right, second kickback flap R2 is largely designed as the left flap and will not be discussed further. It should be noted that between the underside of the valve flap 19 and the bottom of the drain pipe 1 there is a free distance a, which ensures that deposited contaminants do not hinder the operation of the flap.

Ved rensning er det kun nødvendigt at aftage dækslet 7, hvorved hele det indre af afløbsskakten og begge ender af rørafsnittet 2 er frit tilgængeligt.In cleaning, it is only necessary to remove the cover 7, whereby the entire interior of the drain shaft and both ends of the pipe section 2 are freely accessible.

1515

Fig. 2 viser et dæksel 7 med kun en tilbageslagsklap der ikke kan fikseres. Ventilklappen 19 har på bagsiden forstærkningsribber 33.FIG. 2 shows a cover 7 with only a non-fixable non-fixing flap. The valve flap 19 has reinforcing ribs 33 at the rear.

Fig. 3 viser et dæksel 7, hvor den anden tilbageslagsklap 20 ikke som vist i fig. 1 er anbragt i dækslets ene ende men omtrent midt under dækslet. I venstre halvdel af fig. 3 er antydet, hvorledes afløbsskaktens 3' overkant kan have en omløbende rende 35 til optagelse af et fra dækslet ned-adrettet skørt 36. Herved opnås en mere sikker og tæt 25 fastholdelse af dækslet.FIG. 3 shows a cover 7 in which the second non-return flap 20 is not shown in FIG. 1 is located at one end of the cover but approximately in the middle of the cover. In the left half of FIG. 3 is indicated how the upper edge of the drain shaft 3 'may have a circumferential channel 35 for receiving a skirt 36 which is lowered from the cover 36, thereby providing a more secure and tight retention of the cover.

Fig. 4 anskueliggør en udførelsesform, hvor afløbsrorets indervæg 38' til optagelse af et skørt 10 har en føringsnot 40, som på begge sider afgrænses af kileformede fremspring 30 39.FIG. 4 illustrates an embodiment in which the inner wall 38 'of the drain pipe for receiving a skirt 10 has a guide groove 40 which is defined on both sides by wedge-shaped projections 30 39.

Ved den i fig. 5 viste udførelsesform har indervæggen 38" en fremstående føringsribbe 41, som griber ind i en omløbende not 42 i skørtet 10'.In the embodiment shown in FIG. 5, the inner wall 38 "has a prominent guide rib 41 which engages a circumferential groove 42 in the skirt 10 '.

3535

Claims

A drain pipe consisting of a pipe section (2) in which a drain shaft (3) opens from above, the shaft can be closed with a cover (7) and with at least one non-return flap (R 1, R 2) which is removably arranged in the drain pipe and has a valve flap (19) closing in one flow direction automatically against a gasket seat (14), characterized in that the check valve (R 1, R 2) is arranged on the underside (8) of the cover (7), preferably formed integrally with this, in such a way that the check valve when the cover 10 (7) is placed in the shaft opening is correctly positioned in the drain pipe (1).

The drain pipe according to claim 1, characterized in that the outer contour of the return flap (R1, R2), optionally during insertion of an elastic gasket (12), is adapted to the contour of the inner cross-section of the drain pipe (2,3).

A drain pipe according to claim 1 or 2, wherein the cover (7) is provided with a gasket (9), characterized in that the cover gasket (9) is integrally formed with the gasket (R 1, R 2) of the return flap (12).

Drain pipe according to claims 1-3, characterized in that the check valve (R 1, R 2) comprises a roughly vertical skirt (10) downwardly solid skirt (10), the outer contour of which is adapted to the contour of the drain pipe (2,3). inner cross section, said skirt (10) having a flow opening (37) surrounded by a gasket seat (14).

A drain pipe according to claims 1-4, characterized in that the skirt (10) has a bearing for a closure body (19), preferably a swivel bearing (15, 16) for a swivel flap.

A drain pipe according to claims 1-5, characterized in that the skirt (10) is seen from the side wider downwards and on the side facing the closure body (19) in such a way that the gasket seat (14) forms a small angle with vertical plane.

A drain pipe according to claim 2, characterized in that the skirt (10) has a circumferential rim groove for a gasket (12), which groove in the transition area between the skirt and the cover bottom (8) goes into a groove for the cover gasket (9).

Drainage pipe according to claims 1-7, characterized in that the cover (7) carries several skirts (10) arranged in succession (5) for several non-return flaps (RlfR2) in succession.

Drainage pipe according to claims 1-8, characterized in that a cover mechanism (26, 27, 28) operable from above and from outside, by means of which a check valve (R 1) can be blocked in the cover (7) closed position. 20 io. Discharge pipe according to claim 9, characterized in that the control mechanism comprises a release means (30), with which a valve flap (19) adhered to the packing seat (14) can be released, whereby a flap (19) or its suspension (18) is provided with a the trigger means cooperating cut-out (31).

A drain pipe according to claims 1-10, characterized in that the inner wall (38) of the drain pipe (2 ', 3') has a guide groove (40) extending in the direction of introduction of the skirt (10) or at least a guide rib (41). .

Drainage tube according to claims 1-10, characterized in that the inner wall of the drainage tube (2,3) has a projection (39) against which the inserted skirt (10) abuts. 35