EP1688371A1 - Lid for the manhole of a tank - Google Patents

Lid for the manhole of a tank Download PDF

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Publication number
EP1688371A1
EP1688371A1 EP05002239A EP05002239A EP1688371A1 EP 1688371 A1 EP1688371 A1 EP 1688371A1 EP 05002239 A EP05002239 A EP 05002239A EP 05002239 A EP05002239 A EP 05002239A EP 1688371 A1 EP1688371 A1 EP 1688371A1
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EP
European Patent Office
Prior art keywords
lid
peripheral surface
inner edge
outer peripheral
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05002239A
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German (de)
French (fr)
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EP1688371B1 (en
Inventor
Rüdiger Thrun
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Individual
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Individual
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Publication date
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Priority to EP05002239A priority Critical patent/EP1688371B1/en
Priority to PL05002239T priority patent/PL1688371T3/en
Priority to AT05002239T priority patent/ATE365691T1/en
Priority to ES05002239T priority patent/ES2289607T3/en
Priority to DE502005000936T priority patent/DE502005000936D1/en
Publication of EP1688371A1 publication Critical patent/EP1688371A1/en
Application granted granted Critical
Publication of EP1688371B1 publication Critical patent/EP1688371B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/10—Manholes; Inspection openings; Covers therefor

Definitions

  • the invention relates to a manhole cover for a tank opening in a tank with a closing device for opening and closing the lid and with a running over an outer peripheral surface of a lid body or an inner edge of the tank opening seal with sealing ring.
  • the invention also relates to a tank with a tank opening and with a manhole cover for the tank opening with a closing device for opening and closing the lid and with a seal extending over an outer peripheral surface of a lid body or an inner edge of the tank opening seal.
  • a manhole cover or manhole closure is used in tanks and containers to provide a closable access to the tank interior.
  • the tank is used for storage and transportation of, for example, foods, especially liquid substances such as milk or wine.
  • the tank is equipped inside, for example, with a spraying device for regular cleaning of the tank interior. Since store food in the tank, the cleaning must be very clean and residue-free.
  • cover of the lid body is curved inwards and extends in its edge region arcuately up to an outer peripheral surface.
  • a sealing ring is slipped, which presses with its upper side for sealing against an inner surface of the tank.
  • a lid which consists of an annular cover flange and a cap.
  • the dome is arranged within the cover flange and welded to it.
  • the cover flange has a cone or cone angle of about 10 degrees and rests with its outer peripheral surface on two O-rings, which are arranged in two grooves in a container flange.
  • fastening devices are provided from claws and screws or threaded rods.
  • the lid is held on a retaining ring by means of a pulley and then lowered after loosening the attachment to the tank interior.
  • a manhole cover and a tank of the type mentioned is known from DE 299 01 934 U1.
  • a sealing ring is arranged, which comes to rest on a cone shoulder on the inner edge of a collar-shaped flange.
  • the object of the invention is thus seen to develop the manhole cover and the tank of the type mentioned in such a way that a clean and residue-free cleaning of the manhole cover and the tank interior is possible. Furthermore, a safe and reliable seal should be achieved.
  • the invention proposes that in a manhole cover according to the preamble of claim 1 and a tank according to the preamble of claim 13, the lid body is formed as a flat truncated cone with a conical outer peripheral surface and the sealing ring in a groove of the outer peripheral surface of the lid body or is arranged in a groove of the conically extending inner edge, wherein the outer peripheral surface or the inner edge abut against the stop when the lid is closed.
  • the outer peripheral surface of the lid base body increases or decreases conically towards the tank interior. Accordingly, the inner edge of the tank opening is reduced or enlarged as a mating surface conically towards the tank interior.
  • the sealing ring is pressed more or less strongly or it is pressed until the outer peripheral surface touches the inner edge. Seen over its entire circumferential surface of the inner edge is not uniform surface in known lids, since the inner edge often warps when welding a weld-in. The deviations are on the order of about 0.8 mm. By warping the inner edge can thus never be accurately predicted, in which area abuts the outer peripheral surface of the manhole cover on the inner edge, so that always a different contact pressure occurs in the known manhole covers.
  • lids of the sealing ring can be damaged when the lid is constantly moving, for example, by the operation of an arranged on the lid body agitator with its contact pressure on the sealing ring.
  • the sealing ring is relieved in this regard, so that damage to the sealing ring is avoided.
  • lid according to the invention and the tank inner wall are cleaned by a spraying device arranged in the tank, a clean and residue-free cleaning of both the lid and the tank inner sides takes place, since the spray jet reaches all areas to be cleaned and no projection or recess or covered area as in the known Lid and the tank is present.
  • the stop is a projection arranged on the outer circumferential surface or a projection arranged on the inner edge of the tank opening.
  • the stop may be arranged only in one area or in several areas of the outer peripheral surface or the inner edge.
  • the stop extends over the entire outer peripheral surface or over the entire peripheral surface of the inner edge.
  • the stop may be wave-shaped, rectangular, trapezoidal or semi-trapezoidal in cross-section. If the stop is located directly next to the groove, the pressed sealing ring is pressed away from the stop towards the inside of the tank when the lid is closed.
  • a particularly preferred embodiment of the invention therefore provides that the stop is arranged on the same surface as the groove and close to the groove, wherein advantageously a side wall of the stop is formed by a side wall of the groove.
  • a further embodiment of the invention provides that the groove is adapted to the shape of the sealing ring or the groove is rectangular in cross section and the groove side walls perpendicular to the outer peripheral surface or the inner edge.
  • the manhole cover may be of varying thickness, usually between 10 mm and 20 mm.
  • the diameter of the lid is in a range of 30 cm to 60 cm.
  • the lid is formed so that the bottom of the lid body is flush with an inside of the tank, so that no projection between the lower inner edge of the tank opening and the lid bottom is formed.
  • the sealing ring is in a particularly preferred embodiment flush with the underside of the lid and the adjacent inner side of the tank.
  • agitator is provided.
  • the agitator is arranged centrally on the lid body.
  • the closing device which may otherwise be arranged centrically on the lid without stirrer, then shifts more in the edge regions of the lid.
  • the manhole cover 1 according to the invention according to FIG. 1 has a cover main body 2 with an outer peripheral surface 3.
  • the outer peripheral surface 3 tapers conically down to the tank interior and thus extends obliquely to a central axis 4 of the lid 1 with a cone angle of about 45 °.
  • a groove 5 is arranged, which is rectangular in cross-section, wherein the groove side walls 6 extend perpendicular to the outer peripheral surface 3 and the groove bottom 7 parallel to the outer peripheral surface 3.
  • a sealing ring 8 is arranged in the form of an O-ring.
  • the sealing ring 8 presses in the closed position of the lid 1 against the inner edge 9 or inner surface of the Tank opening, wherein the inner edge 9 parallel to the outer peripheral surface 3 and thus also runs obliquely against the central axis 4 and thus increases conically towards the tank interior.
  • a closing device 10 is arranged centrally on the lid base 2, which essentially has a drive with a spindle 11, a handle 12 and a plurality of clamping levers 13.
  • the clamping levers 13 clamp under a frame 14, which is welded to the tank, and thus press the lid body 2 and the sealing ring 8 against the inner edge 9 of the tank opening for safe sealing.
  • a pivoting device 15 of conventional form is arranged in the edge region of the truncated conical lid body 2.
  • the lid body 2 is solid, has the shape of a flat truncated cone and is designed such that when the lid 1 is closed, a bottom 16 of the lid body 2 is flush with an adjacent inner side 17 of the tank.
  • the sealing ring 8 is advantageously arranged at the bottom on the outer circumferential surface 3 in a region which adjoins the underside 16.
  • an underside 18 of the sealing ring 8 facing the interior of the tank is flush with the underside 16 and the inside 17, so that no gap can form between the inner edge 9 or inner edge 19 and the outer peripheral surface 3 towards the interior of the tank, which still leaves residues could have the cleaning.
  • a stop 21 for the inner edge 9 is arranged on the outer peripheral surface 3. The exact operation of the stop 21 will be explained below in the description of Fig. 4.
  • the lid body 2 of the manhole cover 1 is pivoted from the tank inside to the inner edge 9 of the tank opening, wherein the locking device 10 is formed as a toggle closure.
  • the inner edge 9 is formed by the conical inner surface of a flange 20th formed and the groove 5 is disposed in the peripheral surface of the inner edge 9 of the flange 20.
  • the flange 20 is welded into the tank.
  • the groove is rectangular in cross-section, wherein the groove side walls 6, 24 of FIG. 4 perpendicular to the inner edge 9 and the groove bottom 7 parallel to the inner edge 9, or in the closed lid position, also parallel to the outer peripheral surface 3.
  • the groove 5 may also be adapted to the shape of the sealing ring 8, so that it may be semicircular or partially oval in cross-section.
  • a stop 21 for the outer peripheral surface 3 of the lid body 2 is arranged on the inner edge 9, a stop 21 for the outer peripheral surface 3 of the lid body 2 is arranged.
  • the stop 21 is located on a side facing away from the tank interior side of the sealing ring 8 and extends over the entire peripheral surface of the inner edge 9.
  • the stop 21 may be integrally formed with the inner edge 9 or corresponding to the outer peripheral surface 3 or as a separate part with appropriate attachment.
  • the stopper 21 is formed adjacent to the groove 5 such that a side wall 25 of the stopper 21, which bears against the sealing ring 8, is formed by the side wall 24 of the groove 5.
  • the stop 21 is in the form of a trapezoidal cross-section, with its flank 22 pointing away from the interior of the tank running obliquely.
  • the outer peripheral surface 3 does not come over its entire surface in contact with the inner edge 9, so that between the outer peripheral surface 3 and the inner edge 9, a gap 23 is formed, which points away from the stop 21 to the outside.
  • the sealing ring 8 has a diameter of 7 mm and stands with the manlock cover 1 open 2 mm over the inner edge 9 over.
  • the height of the stop 21 with respect to the inner edge 9 is about 1.2 mm, so that when the manhole cover 1 is closed, a gap 23 of about 1.2 mm is formed and the sealing ring 8 is always pressed by 0.8 mm.
  • the sealing ring 8 undergoes when closing the manhole cover 1 always the same degree of pressure and thus always the same contact pressure. This prevents that the sealing ring 8 is pressed too much, which leads to pinching of the sealing ring 8 and thus to an unreliable seal. With the defined stop 21 and the constant achieved thereby Contact pressure for the sealing ring 8 ensures a safe and reliable seal.
  • the sealing ring 8 When closing the manhole cover 1, the sealing ring 8 is pressed only until the outer peripheral surface 3 rests against the stop 21. Since the stop 21 is located directly adjacent to the groove 5 and with respect to the sealing ring 8 opposite the tank interior, this is pressed to the interior of the tank during compression of the sealing ring 8, whereby the space between the inner edge 9 and the outer peripheral surface 3 in the direction of the tank interior completely with the Fills sealing ring 8.
  • the dimensions of the sealing ring 8 and the size and arrangement of the groove 5 are chosen so that when the manhole cover 1, the sealing ring 8 is approximately flush with the bottom 16 of the lid body 2 and the inside 17 of the tank or the flange 20. Thus, no residues can accumulate in this area even after cleaning, as was previously the case with known manhole covers.
  • the tank according to the invention with the manhole cover 1 is used for the storage and transport of food, pharmaceutical products and general products, which are given special requirements for a sterile storage.

Abstract

The manhole cover (1) has a locking system (10) for opening and shutting the cover as well as a sealing around the outer perimeter area (3) of the cover~s base body (2) or around the inner edge (9) of the tank opening, and which has a seal ring (8) to enable a clean and resistance-free cleaning of the cover. The base body is built as a bevelled shape with a conical outer perimeter area, whilst the seal ring is located in a groove (5) in the outer perimeter area or in a groove of the conical inner edge, with the outer perimeter area of the inner edge lying in a stop (21) around the cover. The stop may have a projection either on the outer perimeter area or the inner edge of the tank opening. The stop may have a cross-section that is corrugated, rectangular, trapezoid or semi-trapezoid.

Description

Die Erfindung bezieht sich auf einen Mannlochdeckel für eine Tanköffnung in einem Tank mit einer Schließeinrichtung zum Öffnen und Schließen des Deckels und mit einer über eine Außenumfangsfläche eines Deckelgrundkörpers oder über einen Innenrand der Tanköffnung verlaufenden Dichtung mit Dichtring. Die Erfindung bezieht sich auch auf einen Tank mit einer Tanköffnung und mit einem Mannlochdeckel für die Tanköffnung mit einer Schließeinrichtung zum Öffnen und Schließen des Deckels und mit einer über eine Außenumfangsfläche eines Deckelgrundkörpers oder über einen Innenrand der Tanköffnung verlaufenden Dichtung mit Dichtring.The invention relates to a manhole cover for a tank opening in a tank with a closing device for opening and closing the lid and with a running over an outer peripheral surface of a lid body or an inner edge of the tank opening seal with sealing ring. The invention also relates to a tank with a tank opening and with a manhole cover for the tank opening with a closing device for opening and closing the lid and with a seal extending over an outer peripheral surface of a lid body or an inner edge of the tank opening seal.

Ein Mannlochdeckel oder Mannlochverschluß wird in Tanks und Behälter eingesetzt, um einen verschließbaren Zugang zum Tankinnern zu haben. Zu Wartungsarbeiten und Kontrolle des Tankinneren, beispielsweise zur Wartung eines innerhalb des Tanks angeordneten Rührwerks, steigt nach Öffnen des Deckels ein Mann über die Tanköffnung in den Tank hinein. Der Tank dient der Lagerung und dem Transport von beispielsweise Nahrungsmitteln, insbesondere von flüssigen Substanzen wie beispielsweise Milch oder Wein. Zur Reinigung des Tanks, welche in der Regel erheblich häufiger erfolgt als die Wartungsarbeiten, ist der Tank innen beispielsweise mit einer Sprüheinrichtung für eine regelmäßige Reinigung des Tankinneren ausgestattet. Da in dem Tank Lebensmittel lagern, muß die Reinigung besonders sauber und rückstandsfrei erfolgen. Bei einem bekannten Deckel ist der Deckelgrundkörper nach innen gewölbt und verläuft in seinem Randbereich bogenartig bis zu einer Außenumfangsfläche. Über diese Außenumfangsfläche ist ein Dichtring gestülpt, welcher mit seiner Oberseite zum Abdichten gegen eine Innenfläche des Tanks drückt. Beim Reinigen dieses Tankdeckels aus dem Tankinneren heraus bleiben nachteiligerweise Lebensmittelrückstände beispielsweise zwischen dem Dichtring und dem bogenförmigen Endbereich des Deckelgrundkörpers zurück.A manhole cover or manhole closure is used in tanks and containers to provide a closable access to the tank interior. For maintenance and control of the interior of the tank, for example, for maintenance of an arranged inside the tank agitator rises after opening the lid, a man over the tank opening into the tank. The tank is used for storage and transportation of, for example, foods, especially liquid substances such as milk or wine. For cleaning the tank, which is usually much more frequent than the maintenance work, the tank is equipped inside, for example, with a spraying device for regular cleaning of the tank interior. Since store food in the tank, the cleaning must be very clean and residue-free. In a known cover of the lid body is curved inwards and extends in its edge region arcuately up to an outer peripheral surface. Over this outer peripheral surface, a sealing ring is slipped, which presses with its upper side for sealing against an inner surface of the tank. When cleaning this tank lid from inside the tank disadvantageously food residues remain, for example, between the sealing ring and the arcuate end of the lid body back.

Durch die DE 43 16 887 ist ein Deckel bekannt, welcher aus einem ringförmigen Deckelflansch und einer Kalotte besteht. Die Kalotte ist innerhalb des Deckelflansches angeordnet und mit diesem verschweißt. Der Deckelflansch weist einen Konus- oder Kegelwinkel von etwa 10 Grad auf und liegt mit seiner Außenumfangsfläche an zwei O-Ringen an, welche in zwei Nuten in einem Behälterflansch angeordnet sind. Zum Fixieren des Deckels in der Tanköffnung sind Befestigungsvorrichtungen aus Pratzen und Schrauben oder Gewindestangen vorgesehen. Um Inspektionen oder Reinigungen des Tanks durchzuführen, wird der Deckel an einem Haltering mittels eines Flaschenzuges gehalten und sodann nach Lösen der Befestigung ins Tankinnere abgesenkt.From DE 43 16 887 a lid is known, which consists of an annular cover flange and a cap. The dome is arranged within the cover flange and welded to it. The cover flange has a cone or cone angle of about 10 degrees and rests with its outer peripheral surface on two O-rings, which are arranged in two grooves in a container flange. For fixing the lid in the tank opening fastening devices are provided from claws and screws or threaded rods. To perform inspections or cleanings of the tank, the lid is held on a retaining ring by means of a pulley and then lowered after loosening the attachment to the tank interior.

Ein Mannlochdeckel und ein Tank der eingangs genannten Art ist durch die DE 299 01 934 U1 bekannt. In einer radial umlaufenden Nut des Deckelgrundkörpers ist ein Dichtungsring angeordnet, welcher auf einer Konusschulter am Innenrand eines kragenförmigen Flansches zum Liegen kommt. Beim Reinigen dieses Deckels aus dem Tankinneren heraus bleiben nachteiligerweise Lebensmittelrückstände in einem Spalt zwischen dem Innenrand des Flansches und dem Deckelgrundkörper zurück, was zum Verderben des nachfolgend eingebrachten Lagergutes führt.A manhole cover and a tank of the type mentioned is known from DE 299 01 934 U1. In a radially circumferential groove of the lid base body, a sealing ring is arranged, which comes to rest on a cone shoulder on the inner edge of a collar-shaped flange. When cleaning this lid from the inside of the tank disadvantageously food residues remain in a gap between the inner edge of the flange and the lid body back, resulting in the spoiling of subsequently introduced stored goods.

Die Aufgabe der Erfindung wird somit darin gesehen, den Mannlochdeckel und den Tank der eingangs genannten Art derart weiterzuentwickeln, daß eine saubere und rückstandsfreie Reinigung des Mannlochdeckels und des Tankinneren ermöglicht wird. Weiterhin soll eine sichere und zuverlässige Dichtung erreicht werden.The object of the invention is thus seen to develop the manhole cover and the tank of the type mentioned in such a way that a clean and residue-free cleaning of the manhole cover and the tank interior is possible. Furthermore, a safe and reliable seal should be achieved.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß bei einem Mannlochdeckel gemäß dem Oberbegriff des Anspruchs 1 und einem Tank gemäß dem Oberbegriff des Anspruchs 13 der Deckelgrundkörper als flacher Kegelstumpf mit einer konisch verlaufenden Außenumfangsfläche ausgebildet ist und der Dichtring in einer Nut der Außenumfangsfläche des Deckelgrundkörpers oder in einer Nut des konisch verlaufenden Innenrandes angeordnet ist, wobei die Außenumfangsfläche oder der Innenrand bei geschlossenem Deckel an einem Anschlag anliegen.To solve this problem the invention proposes that in a manhole cover according to the preamble of claim 1 and a tank according to the preamble of claim 13, the lid body is formed as a flat truncated cone with a conical outer peripheral surface and the sealing ring in a groove of the outer peripheral surface of the lid body or is arranged in a groove of the conically extending inner edge, wherein the outer peripheral surface or the inner edge abut against the stop when the lid is closed.

Bei dem erfindungsgemäßen Mannlochdeckel und dem Tank vergrößert oder verkleinert sich die Außenumfangsfläche des Deckelgrundkörpers konisch zum Tankinneren hin. Entsprechend verkleinert oder vergrößert sich der Innenrand der Tanköffnung als Gegenfläche konisch zum Tankinneren hin. Durch Bewegen des Deckelgrundkörpers vom Tankinneren her oder von außen her wird der Deckel geschlossen, wobei der im Innenrand oder in der Außenumfangsfläche angeordnete Dichtring auf der Außenumfangsfläche oder auf dem Innenrand aufliegt. Durch den Anschlag wird eine definierte Pressung des Dichtringes erreicht, so daß auf den Dichtring immer der gleiche Anpressdruck wirkt. Dies ermöglicht eine sichere und zuverlässige Dichtung. Bei bisher bekannten Deckeln ist dies nicht der Fall. Wird ein bekannter Mannlochdeckel durch Anziehen von Schrauben verschlossen, so wird der Dichtring mehr oder weniger stark gepresst oder er wird solange gepresst, bis die Außenumfangsfläche den Innenrand berührt. Über seine gesamte Umfangsfläche gesehen ist der Innenrand bei bekannten Deckeln keine gleichmäßige Fläche, da sich der Innenrand beim Einschweißen eines Einschweißflansches oft verzieht. Die Abweichungen liegen in einer Größenordnung von etwa 0.8 mm. Durch das Verziehen des Innenrandes kann somit nie präzise vorhergesagt werden, in welchem Bereich die Außenumfangsfläche des Mannlochdeckels an dem Innenrand anschlägt, so daß bei den bekannten Mannlochdeckeln immer ein unterschiedlicher Anpressdruck auftritt. Weiterhin kann bei bekannten Deckeln der Dichtring beschädigt werden, wenn sich der Deckel beispielsweise durch den Betrieb eines am Deckelgrundkörper angeordneten Rührwerks mit seinem Anpreßdruck auf dem Dichtring ständig bewegt. Durch den Anschlag bei dem erfindungsgemäßen Mannlochdeckel wird der Dichtring diesbezüglich entlastet, so daß eine Beschädigung des Dichtrings vermieden wird.In the manhole cover according to the invention and the tank, the outer peripheral surface of the lid base body increases or decreases conically towards the tank interior. Accordingly, the inner edge of the tank opening is reduced or enlarged as a mating surface conically towards the tank interior. By moving the lid body from the inside of the tank or from the outside, the lid is closed, wherein the arranged in the inner edge or in the outer peripheral surface sealing ring rests on the outer peripheral surface or on the inner edge. By the stop a defined pressure of the sealing ring is achieved, so that always acts on the sealing ring the same contact pressure. This allows a safe and reliable seal. In previously known lids this is not the case. If a known manhole cover is closed by tightening screws, the sealing ring is pressed more or less strongly or it is pressed until the outer peripheral surface touches the inner edge. Seen over its entire circumferential surface of the inner edge is not uniform surface in known lids, since the inner edge often warps when welding a weld-in. The deviations are on the order of about 0.8 mm. By warping the inner edge can thus never be accurately predicted, in which area abuts the outer peripheral surface of the manhole cover on the inner edge, so that always a different contact pressure occurs in the known manhole covers. Furthermore, in known lids of the sealing ring can be damaged when the lid is constantly moving, for example, by the operation of an arranged on the lid body agitator with its contact pressure on the sealing ring. By the stop in the manhole cover according to the invention, the sealing ring is relieved in this regard, so that damage to the sealing ring is avoided.

Wird der erfindungsgemäße Deckel und die Tankinnenwandung durch eine im Tank angeordnete Sprüheinrichtung gereinigt, so erfolgt eine saubere und rückstandsfreie Reinigung sowohl des Deckels als auch der Tankinnenseiten, da der Sprühstrahl alle zu reinigenden Bereiche erreicht und kein Vorsprung oder Rücksprung oder verdeckter Bereich wie bei dem bekannten Deckel und dem Tank vorhanden ist.If the lid according to the invention and the tank inner wall are cleaned by a spraying device arranged in the tank, a clean and residue-free cleaning of both the lid and the tank inner sides takes place, since the spray jet reaches all areas to be cleaned and no projection or recess or covered area as in the known Lid and the tank is present.

Eine Ausführungsform der Erfindung sieht vor, daß der Anschlag ein auf der Außenumfangsfläche angeordneter Vorsprung oder ein auf dem Innenrand der Tanköffnung angeordneter Vorsprung ist. Der Anschlag kann lediglich in einem Bereich oder in mehreren Bereichen der Außenumfangsfläche oder des Innenrandes angeordnet sein. Vorteilhafterweise verläuft der Anschlag jedoch über die gesamte Außenumfangsfläche oder über die gesamte Umfangsfläche des Innenrandes. Zweckmäßigerweise kann der Anschlag im Querschnitt wellenförmig, rechteckförmig, trapezförmig oder halbtrapezförmig sein. Befindet sich der Anschlag direkt neben der Nut, so wird beim Schließen des Deckels der gepreßte Dichtring vom Anschlag weg in Richtung Tankinneres gedrückt. Dadurch wird der vom Anschlag weg zum Tankinneren hinweisende Spalt zwischen Innenrand und Außenumfangsfläche durch den Dichtring zuverlässig verschlossen, so daß in diesem Bereich keine Rückstände nach dem Reinigen verbleiben. Eine besonders bevorzugte Ausführungsform der Erfindung sieht deshalb vor, daß der Anschlag auf derselben Fläche wie die Nut und naheliegend der Nut angeordnet ist, wobei vorteilhafterweise eine Seitenwand des Anschlages durch eine Seitenwand der Nut gebildet ist.An embodiment of the invention provides that the stop is a projection arranged on the outer circumferential surface or a projection arranged on the inner edge of the tank opening. The stop may be arranged only in one area or in several areas of the outer peripheral surface or the inner edge. Advantageously, however, the stop extends over the entire outer peripheral surface or over the entire peripheral surface of the inner edge. Conveniently, the stop may be wave-shaped, rectangular, trapezoidal or semi-trapezoidal in cross-section. If the stop is located directly next to the groove, the pressed sealing ring is pressed away from the stop towards the inside of the tank when the lid is closed. As a result, the gap between the inner edge and the outer peripheral surface pointing away from the stop to the interior of the tank is reliably closed by the sealing ring, so that no residues remain after cleaning in this area. A particularly preferred embodiment of the invention therefore provides that the stop is arranged on the same surface as the groove and close to the groove, wherein advantageously a side wall of the stop is formed by a side wall of the groove.

Eine weitere Ausführungsform der Erfindung sieht vor, daß die Nut der Form des Dichtrings angepaßt ist oder die Nut im Querschnitt rechteckig ausgebildet ist und die Nutseitenwände senkrecht zur Außenumfangsfläche oder zum Innenrand verlaufen. Der Mannlochdeckel kann von unterschiedlicher Stärke sein, üblicherweise zwischen 10 mm und 20 mm. Der Durchmesser des Deckels liegt in einem Bereich von 30 cm bis 60 cm. Vorteilhafterweise ist der Deckel so ausgebildet, daß die Unterseite des Deckelgrundkörpers bündig mit einer Innenseite des Tanks ist, damit kein Vorsprung zwischen dem unteren Innenrand der Tanköffnung und der Deckelunterseite entsteht. Auch der Dichtring ist bei einer besonders bevorzugten Ausführungsform bündig mit der Deckelunterseite und der angrenzenden Innenseite des Tanks.A further embodiment of the invention provides that the groove is adapted to the shape of the sealing ring or the groove is rectangular in cross section and the groove side walls perpendicular to the outer peripheral surface or the inner edge. The manhole cover may be of varying thickness, usually between 10 mm and 20 mm. The diameter of the lid is in a range of 30 cm to 60 cm. Advantageously, the lid is formed so that the bottom of the lid body is flush with an inside of the tank, so that no projection between the lower inner edge of the tank opening and the lid bottom is formed. Also, the sealing ring is in a particularly preferred embodiment flush with the underside of the lid and the adjacent inner side of the tank.

Je nach Anwendungsbedarf können verschiedene Einrichtungen an dem Deckel befestigt sein. Eine weitere Ausführungsform der Erfindung sieht deshalb vor, daß ein Rührwerk vorgesehen ist. Zweckmäßigerweise ist das Rührwerk zentrisch an dem Deckelgrundkörper angeordnet. Die Schließeinrichtung, welche ohne Rührwerk ansonsten zentrisch an dem Deckel angeordnet sein kann, verschiebt sich dann mehr in die Randbereiche des Deckels.Depending on the application requirements, various devices may be attached to the lid. Another embodiment of the invention therefore provides that an agitator is provided. Conveniently, the agitator is arranged centrally on the lid body. The closing device, which may otherwise be arranged centrically on the lid without stirrer, then shifts more in the edge regions of the lid.

Die Erfindung wird nachstehend anhand der Zeichnung näher erläutert. Die Zeichnung zeigt Ausführungsbeispiele der Erfindung. Hierbei stellen dar:

  • Fig.1 eine Seitenansicht eines ersten Ausführungsbeispiels des erfindungsgemäßen Mannlochdeckels,
  • Fig.2 einen Querschnitt einer vergrößerten abgebrochenen Darstellung der Außenumfangsfläche des Deckelgrundkörpers nach Fig. 1.
  • Fig.3 eine Seitenansicht eines zweiten Ausführungsbeispiels des erfindungsgemäßen Mannlochdeckels und
  • Fig.4 einen Querschnitt einer vergrößerten abgebrochenen Darstellung der Außenumfangsfläche des Deckelgrundkörpers und des Innenrandes der Tanköffnung nach Fig. 3.
The invention is explained below with reference to the drawing. The drawing shows embodiments of the invention. Here are represent:
  • 1 shows a side view of a first embodiment of the manhole cover according to the invention,
  • 2 shows a cross section of an enlarged fragmentary illustration of the outer peripheral surface of the lid main body according to FIG. 1.
  • 3 shows a side view of a second embodiment of the manhole cover according to the invention and
  • 4 shows a cross-section of an enlarged fragmentary illustration of the outer peripheral surface of the lid base body and of the inner edge of the tank opening according to FIG. 3.

Der erfindungsgemäße Mannlochdeckel 1 gemäß Fig.1 weist einen Deckelgrundkörper 2 mit einer Außenumfangsfläche 3 auf. Die Außenumfangsfläche 3 verjüngt sich konisch nach unten zum Tankinneren und verläuft somit schräg zu einer Mittelachse 4 des Deckels 1 mit einem Konuswinkel von etwa 45°. In der Außenumfangsfläche 3 ist eine Nut 5 angeordnet, welche im Querschnitt rechteckig ausgebildet ist, wobei die Nutseitenwände 6 senkrecht zur Außenumfangsfläche 3 und der Nutboden 7 parallel zur Außenumfangsfläche 3 verlaufen. In der Nut 5 ist ein Dichtring 8 in Form eines O-Rings angeordnet. Der Dichtring 8 drückt in geschlossener Stellung des Deckels 1 gegen den Innenrand 9 oder Innenfläche der Tanköffnung, wobei der Innenrand 9 parallel zur Außenumfangsfläche 3 und somit ebenfalls schräg gegen die Mittelachse 4 verläuft und sich somit zum Tankinneren hin konisch vergrößert.The manhole cover 1 according to the invention according to FIG. 1 has a cover main body 2 with an outer peripheral surface 3. The outer peripheral surface 3 tapers conically down to the tank interior and thus extends obliquely to a central axis 4 of the lid 1 with a cone angle of about 45 °. In the outer peripheral surface 3, a groove 5 is arranged, which is rectangular in cross-section, wherein the groove side walls 6 extend perpendicular to the outer peripheral surface 3 and the groove bottom 7 parallel to the outer peripheral surface 3. In the groove 5, a sealing ring 8 is arranged in the form of an O-ring. The sealing ring 8 presses in the closed position of the lid 1 against the inner edge 9 or inner surface of the Tank opening, wherein the inner edge 9 parallel to the outer peripheral surface 3 and thus also runs obliquely against the central axis 4 and thus increases conically towards the tank interior.

Zum verschwenkbaren Öffnen und Schließen des Mannlochdeckels 1 ist an dem Deckelgrundkörper 2 zentrisch eine Schließeinrichtung 10 angeordnet, welche im wesentlichen einen Antrieb mit Spindel 11, einen Handgriff 12 und mehrere Klemmhebel 13 aufweist. Durch Drehen des Handgriffs 12 klemmen die Klemmhebel 13 unter eine Zarge 14, welche an dem Tank angeschweißt ist, und drücken damit den Deckelgrundkörper 2 und den Dichtring 8 gegen den Innenrand 9 der Tanköffnung zum sicheren Abdichten. Zum Verschwenken des Deckels 1 ist im Randbereich des kegelstumpfartig ausgebildeten Deckelgrundkörpers 2 eine Schwenkeinrichtung 15 von herkömmlicher Form angeordnet.For pivotally opening and closing the manhole cover 1, a closing device 10 is arranged centrally on the lid base 2, which essentially has a drive with a spindle 11, a handle 12 and a plurality of clamping levers 13. By turning the handle 12, the clamping levers 13 clamp under a frame 14, which is welded to the tank, and thus press the lid body 2 and the sealing ring 8 against the inner edge 9 of the tank opening for safe sealing. For pivoting the lid 1, a pivoting device 15 of conventional form is arranged in the edge region of the truncated conical lid body 2.

Der Deckelgrundkörper 2 ist massiv, hat die Form eines flachen Kegelstumpfes und ist derart ausgebildet, daß bei geschlossenem Deckel 1 eine Unterseite 16 des Deckelgrundkörpers 2 bündig mit einer angrenzenden Innenseite 17 des Tanks abschließt. Der Dichtring 8 ist vorteilhafterweise unten an der Außenumfangsfläche 3 in einem Bereich angeordnet, welcher an die Unterseite 16 angrenzt. Bei geschlossenem Deckel 1 ist dadurch eine zum Tankinneren weisende Unterseite 18 des Dichtrings 8 bündig mit der Unterseite 16 und der Innenseite 17, so daß sich zum Tankinneren hin kein Spalt zwischen Innenrand 9 oder Innenkante 19 und Außenumfangsfläche 3 ausbilden kann, welcher noch Rückstände auch nach dem Reinigen aufweisen könnte. Damit bei geschlossenem Deckel 1 immer der gleiche Anpreßdruck auf den Dichtring 8 wirkt, ist ein Anschlag 21 für den Innenrand 9 auf der Außenumfangsfläche 3 angeordnet. Die genaue Wirkungsweise des Anschlages 21 wird nachstehend bei der Beschreibung der Fig. 4 erläutert.The lid body 2 is solid, has the shape of a flat truncated cone and is designed such that when the lid 1 is closed, a bottom 16 of the lid body 2 is flush with an adjacent inner side 17 of the tank. The sealing ring 8 is advantageously arranged at the bottom on the outer circumferential surface 3 in a region which adjoins the underside 16. When the cover 1 is closed, an underside 18 of the sealing ring 8 facing the interior of the tank is flush with the underside 16 and the inside 17, so that no gap can form between the inner edge 9 or inner edge 19 and the outer peripheral surface 3 towards the interior of the tank, which still leaves residues could have the cleaning. So that with the cover 1 always the same contact pressure acts on the sealing ring 8, a stop 21 for the inner edge 9 is arranged on the outer peripheral surface 3. The exact operation of the stop 21 will be explained below in the description of Fig. 4.

Bei dem in Fig. 3 dargestellten Ausführungsbeispiel wird der Deckelgrundkörper 2 des Mannlochdeckels 1 vom Tankinneren her zum Innenrand 9 der Tanköffnung geschwenkt, wobei die Schließeinrichtung 10 als Knebelverschluß ausgebildet ist. Der Innenrand 9 wird durch die konisch verlaufende Innenfläche eines Flansches 20 gebildet und die Nut 5 ist in der Umfangsfläche des Innenrandes 9 des Flansches 20 angeordnet. Der Flansch 20 ist in den Tank eingeschweißt. Die Nut ist im Querschnitt rechteckig ausgebildet, wobei die Nutseitenwände 6, 24 gemäß Fig. 4 senkrecht zum Innenrand 9 und der Nutboden 7 parallel zum Innenrand 9, bzw. in geschlossener Deckelstellung, auch parallel zur Außenumfangsfläche 3 verlaufen. Die Nut 5 kann auch der Form des Dichtrings 8 angepasst sein, so daß sie im Querschnitt halbkreisförmig oder teilweise oval sein kann. Auf dem Innenrand 9 ist ein Anschlag 21 für die Außenumfangsfläche 3 des Deckelgrundkörpers 2 angeordnet. Der Anschlag 21 befindet sich auf einer vom Tankinneren wegweisenden Seite des Dichtrings 8 und verläuft über die gesamte Umfangsfläche des Innenrandes 9. Der Anschlag 21 kann einstückig mit dem Innenrand 9 oder entsprechend mit der Außenumfangsfläche 3 oder als separates Teil mit entsprechender Befestigung ausgebildet sein. Der Anschlag 21 ist angrenzend an die Nut 5 derart ausgebildet, daß eine Seitenwand 25 des Anschlages 21, welche an dem Dichtring 8 anliegt, durch die Seitenwand 24 der Nut 5 gebildet ist. Der Anschlag 21 ist im Querschnitt halbtrapezförmig, wobei seine vom Tankinneren wegweisende Flanke 22 schräg abfallend verläuft. Durch den Anschlag 21 kommt die Außenumfangsfläche 3 nicht über ihre gesamte Fläche in Berührung mit dem Innenrand 9, so daß sich zwischen der Außenumfangsfläche 3 und dem Innenrand 9 ein Spalt 23 ausbildet, welcher vom Anschlag 21 wegweisend nach außen verläuft. Der Dichtring 8 hat einen Durchmesser von 7mm und steht bei geöffnetem Mannlockdeckel 1 2mm über den Innenrand 9 über. Die Höhe des Anschlags 21 bezüglich des Innenrandes 9 beträgt etwa 1.2 mm, so daß sich bei geschlossenem Mannlochdeckel 1 ein Spalt 23 von etwa 1.2 mm ausbildet und der Dichtring 8 immer um 0.8 mm gepreßt wird.In the embodiment shown in Fig. 3, the lid body 2 of the manhole cover 1 is pivoted from the tank inside to the inner edge 9 of the tank opening, wherein the locking device 10 is formed as a toggle closure. The inner edge 9 is formed by the conical inner surface of a flange 20th formed and the groove 5 is disposed in the peripheral surface of the inner edge 9 of the flange 20. The flange 20 is welded into the tank. The groove is rectangular in cross-section, wherein the groove side walls 6, 24 of FIG. 4 perpendicular to the inner edge 9 and the groove bottom 7 parallel to the inner edge 9, or in the closed lid position, also parallel to the outer peripheral surface 3. The groove 5 may also be adapted to the shape of the sealing ring 8, so that it may be semicircular or partially oval in cross-section. On the inner edge 9, a stop 21 for the outer peripheral surface 3 of the lid body 2 is arranged. The stop 21 is located on a side facing away from the tank interior side of the sealing ring 8 and extends over the entire peripheral surface of the inner edge 9. The stop 21 may be integrally formed with the inner edge 9 or corresponding to the outer peripheral surface 3 or as a separate part with appropriate attachment. The stopper 21 is formed adjacent to the groove 5 such that a side wall 25 of the stopper 21, which bears against the sealing ring 8, is formed by the side wall 24 of the groove 5. The stop 21 is in the form of a trapezoidal cross-section, with its flank 22 pointing away from the interior of the tank running obliquely. By the stop 21, the outer peripheral surface 3 does not come over its entire surface in contact with the inner edge 9, so that between the outer peripheral surface 3 and the inner edge 9, a gap 23 is formed, which points away from the stop 21 to the outside. The sealing ring 8 has a diameter of 7 mm and stands with the manlock cover 1 open 2 mm over the inner edge 9 over. The height of the stop 21 with respect to the inner edge 9 is about 1.2 mm, so that when the manhole cover 1 is closed, a gap 23 of about 1.2 mm is formed and the sealing ring 8 is always pressed by 0.8 mm.

Durch den Anschlag 21 erfährt der Dichtring 8 beim Schließen des Mannlochdeckels 1 immer das gleiche Maß an Pressung und damit immer den gleichen Anpressdruck. Dadurch wird verhindert, daß der Dichtring 8 zu stark gepreßt wird, was zu Quetschungen des Dichtrings 8 und damit zu einer unzuverlässigen Dichtung führt. Mit dem definierten Anschlag 21 und dem dadurch erzielten konstanten Anpressdruck für den Dichtring 8 wird eine sichere und zuverlässige Dichtung gewährleistet.By the stop 21, the sealing ring 8 undergoes when closing the manhole cover 1 always the same degree of pressure and thus always the same contact pressure. This prevents that the sealing ring 8 is pressed too much, which leads to pinching of the sealing ring 8 and thus to an unreliable seal. With the defined stop 21 and the constant achieved thereby Contact pressure for the sealing ring 8 ensures a safe and reliable seal.

Beim Schließen des Mannlochdeckels 1 wird der Dichtring 8 nur so lange gepreßt, bis die Außenumfangsfläche 3 an dem Anschlag 21 anliegt. Da der Anschlag 21 direkt neben der Nut 5 und bezüglich des Dichtringes 8 gegenüberliegend dem Tankinnern angeordnet ist, wird beim Verpressen des Dichtringes 8 dieser zum Tankinneren hin gepreßt, wodurch sich der Raum zwischen dem Innenrand 9 und der Außenumfangsfläche 3 in Richtung Tankinneres vollständig mit dem Dichtring 8 ausfüllt. Die Dimensionen von Dichtring 8 und Größe und Anordnung der Nut 5 sind so gewählt, daß bei geschlossenem Mannlochdeckel 1 der Dichtring 8 etwa bündig mit der Unterseite 16 des Deckelgrundkörpers 2 und der Innenseite 17 des Tanks bzw. des Flansches 20 abschließt. Damit können sich in diesem Bereich auch nach dem Reinigen keine Rückstände mehr anlagern, wie es bisher bei bekannten Mannlochdeckeln der Fall war.When closing the manhole cover 1, the sealing ring 8 is pressed only until the outer peripheral surface 3 rests against the stop 21. Since the stop 21 is located directly adjacent to the groove 5 and with respect to the sealing ring 8 opposite the tank interior, this is pressed to the interior of the tank during compression of the sealing ring 8, whereby the space between the inner edge 9 and the outer peripheral surface 3 in the direction of the tank interior completely with the Fills sealing ring 8. The dimensions of the sealing ring 8 and the size and arrangement of the groove 5 are chosen so that when the manhole cover 1, the sealing ring 8 is approximately flush with the bottom 16 of the lid body 2 and the inside 17 of the tank or the flange 20. Thus, no residues can accumulate in this area even after cleaning, as was previously the case with known manhole covers.

Der erfindungsgemäße Tank mit dem Mannlochdeckel 1 wird zur Lagerung und zum Transport von Lebensmitteln, pharmazeutischen Produkten und allgemein Produkten verwendet, bei welchen besondere Anforderungen an eine sterile Aufbewahrung gegeben sind.The tank according to the invention with the manhole cover 1 is used for the storage and transport of food, pharmaceutical products and general products, which are given special requirements for a sterile storage.

Das regelmäßige Reinigen des Tankinneren und des Mannlochdeckels 1 erfolgt beispielsweise über eine in dem Tankinneren angeordnete Sprühanlage. Von dem Sprühstrahl werden alle Bereiche des Mannlochdeckels 1 erfaßt, welche zum Tankinneren hinweisen, da der Mannlochdeckel 1 keinerlei Vorsprünge oder Rücksprünge oder Spalten aufweist. Damit ist eine saubere und rückstandsfreie Reinigung des Mannlochdeckels 1 und auch des Tankinneren gewährleistet.The regular cleaning of the tank interior and the manhole cover 1, for example, via a arranged in the tank interior spray system. From the spray all areas of the manhole cover 1 are detected, which point to the tank interior, since the manhole cover 1 has no projections or recesses or gaps. This ensures a clean and residue-free cleaning of the manhole cover 1 and the tank interior.

Claims (13)

Mannlochdeckel für eine Tanköffnung in einem Tank mit einer Schließeinrichtung (10) zum Öffnen und Schließen des Deckels und mit einer über eine Außenumfangsfläche (3) eines Deckelgrundkörpers (2) oder über einen Innenrand (9) der Tanköffnung verlaufenden Dichtung mit Dichtring (8),
dadurch gekennzeichnet,
daß der Deckelgrundkörper (2) als flacher Kegelstumpf mit einer konisch verlaufenden Außenumfangsfläche (3) ausgebildet ist und der Dichtring (8) in einer Nut (5) der Außenumfangsfläche (3) des Deckelgrundkörpers (2) oder in einer Nut (5) des konisch verlaufenden Innenrandes (9) angeordnet ist, wobei die Außenumfangsfläche (3) oder der Innenrand (9) bei geschlossenem Deckel an einem Anschlag (21) anliegen.Manhole cover for a tank opening in a tank with a closing device (10) for opening and closing the lid and with a sealing ring (8) extending over an outer peripheral surface (3) of a lid base body (2) or via an inner edge (9) of the tank opening.
characterized,
in that the lid base body (2) is designed as a flat truncated cone with a conically extending outer peripheral surface (3) and the sealing ring (8) in a groove (5) of the outer peripheral surface (3) of the lid base body (2) or in a groove (5) of the conical extending inner edge (9) is arranged, wherein the outer peripheral surface (3) or the inner edge (9) with the lid closed against a stop (21). Deckel nach Anspruch 1,
dadurch gekennzeichnet,
daß der Anschlag (21) ein auf der Außenumfangsfläche (3) angeordneter Vorsprung oder ein auf dem Innenrand (9) der Tanköffnung angeordneter Vorsprung ist.Lid according to claim 1,
characterized,
that the stop (21) on the outer peripheral surface disposed (3) or a projection on the inner edge (9) of the tank opening is arranged ahead. Deckel nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Anschlag (21) über die gesamte Außenumfangsfläche (3) oder über die gesamte Umfangsfläche des Innenrandes (9) der Tanköffnung verläuft.Lid according to claim 1 or 2,
characterized,
that the stop (21) over the entire outer peripheral surface (3) or over the entire peripheral surface of the inner edge (9) runs the tank opening. Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Anschlag (21) im Querschnitt wellenförmig, rechteckförmig, trapezförmig oder halbtrapezförmig ist.Lid according to one of the preceding claims,
characterized,
in that the stop (21) is wave-shaped, rectangular, trapezoidal or semi-trapezoidal in cross-section. Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Anschlag (21) auf derselben Fläche wie die Nut (5) und naheliegend der Nut (5) angeordnet ist.Lid according to one of the preceding claims,
characterized,
that the stop (21) on the same surface as the groove (5) and lying close to the groove (5) is arranged. Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß eine Seitenwand (25) des Anschlags (21) durch eine Seitenwand (24) der Nut (5) gebildet ist.Lid according to one of the preceding claims,
characterized,
that one side wall (25) of the stopper (21) through a side wall (24) of the groove (5) is formed. Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Nut (5) der Form des Dichtrings (8) angepaßt ist oder die Nut (5) im Querschnitt rechteckig ausgebildet ist und die Nutseitenwände (6, 24) senkrecht zur Außenumfangsfläche (3) oder zum Innenrand (9) verlaufen.Lid according to one of the preceding claims,
characterized,
that the groove (5) of the shape of the sealing ring (8) is adapted or the groove (5) in cross section is rectangular shape, and the groove side walls (6, 24) are perpendicular to the outer peripheral surface (3) or the inner edge (9). Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß eine Unterseite (16) des Deckelgrundkörpers (2) bündig mit einer Innenseite (17) des Tanks oder eines Flansches (20) ist.Lid according to one of the preceding claims,
characterized,
in that a lower side (16) of the lid base body (2) is flush with an inner side (17) of the tank or a flange (20). Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß eine Unterseite (16) des Deckelgrundkörpers (2) und eine angrenzende Innenseite (17) des Tanks oder eines Flansches (20) bündig mit dem Dichtring (8) sind.Lid according to one of the preceding claims,
characterized,
that a bottom (16) of the cover base body (2) and an adjacent inside (17) of the tank or a flange (20) are flush with the sealing ring (8). Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß ein Rührwerk an dem Deckelgrundkörper (2) angeordnet ist.Lid according to one of the preceding claims,
characterized,
that an agitator on the cover base body (2) is arranged. Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß eine Schwenkeinrichtung (15) zum veschwenkbaren Öffnen und Schließen des Deckels vorgesehen ist.Lid according to one of the preceding claims,
characterized,
that a pivoting device (15) is provided for veschwenkbaren opening and closing of the lid. Deckel nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Außenumfangsfläche (3) oder der Innenrand (9) einen Konuswinkel im Bereich von 45 Grad aufweisen.Lid according to one of the preceding claims,
characterized,
in that the outer circumferential surface (3) or the inner edge (9) have a cone angle in the region of 45 degrees. Tank für Nahrungsmittel mit einer Tanköffnung und mit einem Mannlochdeckel (1) für die Tanköffnung mit einer Schließeinrichtung (10) zum Öffnen und Schließen des Deckels und mit einer über eine Außenumfangsfläche (3) eines Deckelgrundkörpers (2) oder über einen Innenrand (9) der Tanköffnung verlaufenden Dichtung mit Dichtring (8),
dadurch gekennzeichnet,
daß der Deckelgrundkörper (2) als flacher Kegelstumpf mit einer konisch verlaufenden Außenumfangsfläche (3) ausgebildet ist und der Dichtring (8) in einer Nut (5) der Außenumfangsfläche (3) des Deckelgrundkörpers (2) oder in einer Nut (5) des konisch verlaufenden Innenrandes (9) angeordnet ist, wobei die Außenumfangsfläche (3) oder der Innenrand (9) bei geschlossenem Deckel an einem Anschlag (21) anliegt.A food container having a tank opening and having a manhole cover (1) for the tank opening with a closure (10) for opening and closing the lid and having an outer peripheral surface (3) of a lid body (2) or an inner rim (9) of the lid Tank opening extending seal with sealing ring (8),
characterized,
in that the lid base body (2) is designed as a flat truncated cone with a conically extending outer peripheral surface (3) and the sealing ring (8) in a groove (5) of the outer peripheral surface (3) of the lid base body (2) or in a groove (5) of the conical extending inner edge (9) is arranged, wherein the outer peripheral surface (3) or the inner edge (9) with the lid closed against a stop (21).
EP05002239A 2005-02-03 2005-02-03 Lid for the manhole of a tank Active EP1688371B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP05002239A EP1688371B1 (en) 2005-02-03 2005-02-03 Lid for the manhole of a tank
PL05002239T PL1688371T3 (en) 2005-02-03 2005-02-03 Lid for the manhole of a tank
AT05002239T ATE365691T1 (en) 2005-02-03 2005-02-03 MANHOLE COVER FOR A TANK OPENING
ES05002239T ES2289607T3 (en) 2005-02-03 2005-02-03 COVER FOR REGISTRATION OF A DEPOSIT.
DE502005000936T DE502005000936D1 (en) 2005-02-03 2005-02-03 Manhole cover for a tank opening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05002239A EP1688371B1 (en) 2005-02-03 2005-02-03 Lid for the manhole of a tank

Publications (2)

Publication Number Publication Date
EP1688371A1 true EP1688371A1 (en) 2006-08-09
EP1688371B1 EP1688371B1 (en) 2007-06-27

Family

ID=34933571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002239A Active EP1688371B1 (en) 2005-02-03 2005-02-03 Lid for the manhole of a tank

Country Status (5)

Country Link
EP (1) EP1688371B1 (en)
AT (1) ATE365691T1 (en)
DE (1) DE502005000936D1 (en)
ES (1) ES2289607T3 (en)
PL (1) PL1688371T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106628712A (en) * 2016-10-31 2017-05-10 中车长江车辆有限公司 Tank car
US20220201989A1 (en) * 2019-05-16 2022-06-30 Total Betong As Tank provided with a hatch and method for providing access to the tank

Families Citing this family (1)

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DE202015008885U1 (en) 2015-12-22 2016-01-26 Rüdiger Thrun Cover system for a tank opening

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DE4316887A1 (en) * 1992-05-20 1993-11-25 Flaga Handel Cover for spherical pressure vessel - is circular and of larger diameter than circular opening and on inside of it
DE29901934U1 (en) * 1999-02-04 1999-04-22 Stoecklin Logistik Ag Quick release fastener for the manhole cover of a container
DE20316751U1 (en) * 2003-10-31 2004-01-15 Thrun, Rüdiger Manhole cover

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Publication number Priority date Publication date Assignee Title
DE4316887A1 (en) * 1992-05-20 1993-11-25 Flaga Handel Cover for spherical pressure vessel - is circular and of larger diameter than circular opening and on inside of it
DE29901934U1 (en) * 1999-02-04 1999-04-22 Stoecklin Logistik Ag Quick release fastener for the manhole cover of a container
DE20316751U1 (en) * 2003-10-31 2004-01-15 Thrun, Rüdiger Manhole cover

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106628712A (en) * 2016-10-31 2017-05-10 中车长江车辆有限公司 Tank car
US20220201989A1 (en) * 2019-05-16 2022-06-30 Total Betong As Tank provided with a hatch and method for providing access to the tank
EP3968765A4 (en) * 2019-05-16 2023-07-05 Total Betong AS Tank provided with a hatch and method for providing access to the tank

Also Published As

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PL1688371T3 (en) 2007-11-30
ATE365691T1 (en) 2007-07-15
ES2289607T3 (en) 2008-02-01
EP1688371B1 (en) 2007-06-27
DE502005000936D1 (en) 2007-08-09

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