EP1688371B1 - Couvercle obturant le trou d'homme d'un réservoir - Google Patents

Couvercle obturant le trou d'homme d'un réservoir Download PDF

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Publication number
EP1688371B1
EP1688371B1 EP05002239A EP05002239A EP1688371B1 EP 1688371 B1 EP1688371 B1 EP 1688371B1 EP 05002239 A EP05002239 A EP 05002239A EP 05002239 A EP05002239 A EP 05002239A EP 1688371 B1 EP1688371 B1 EP 1688371B1
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EP
European Patent Office
Prior art keywords
peripheral surface
inner edge
tank
outer peripheral
groove
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.)
Active
Application number
EP05002239A
Other languages
German (de)
English (en)
Other versions
EP1688371A1 (fr
Inventor
Rüdiger Thrun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP05002239A priority Critical patent/EP1688371B1/fr
Priority to AT05002239T priority patent/ATE365691T1/de
Priority to ES05002239T priority patent/ES2289607T3/es
Priority to PL05002239T priority patent/PL1688371T3/pl
Priority to DE502005000936T priority patent/DE502005000936D1/de
Publication of EP1688371A1 publication Critical patent/EP1688371A1/fr
Application granted granted Critical
Publication of EP1688371B1 publication Critical patent/EP1688371B1/fr
Active legal-status Critical Current
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Classifications

    • 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 system according to the preamble of claim 1 and to a tank according to the preamble of claim 12.
  • 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 dome.
  • 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 Cover held on a retaining ring by means of a pulley and then lowered after loosening the attachment to the tank interior.
  • a manhole cover system and a tank of the type mentioned are by the DE 203 16 751 U1 known.
  • the lid body is formed as a flat truncated cone with a conical outer peripheral surface and the sealing ring is arranged in a groove of the outer peripheral surface of the lid body.
  • the object of the invention is thus seen to develop the manhole cover system 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 abut in a manhole cover system according to the preamble of claim 1 and a tank according to the preamble of claim 12, the outer peripheral surface or the inner edge with the lid closed to a stop, wherein the stop on the same surface as the groove and is located near the groove.
  • 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.
  • 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.
  • 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. Therefore, the stopper is arranged on the same surface as the groove and close to the groove.
  • 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.
  • 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, the inner edge 9 parallel to the outer peripheral surface 3 and thus also obliquely against the central axis 4 and thus increases towards the tank interior conically.
  • 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 arranged of conventional form.
  • 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 20 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.
  • 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 integral with the inner edge 9 or corresponding to the outer peripheral surface 3 or as a separate part be formed corresponding fastening.
  • 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 thus achieved constant contact pressure for the sealing ring 8 a secure and reliable seal is guaranteed.
  • 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. This can also be in this area after the cleaning no residues accumulate, 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Closures For Containers (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Cleaning In General (AREA)

Claims (12)

  1. Système de couvercle obturant le trou d'homme avec un couvercle et une bride (20) pour une ouverture de réservoir dans un réservoir présentant un dispositif de fermeture (10) servant à ouvrir et à fermer le couvercle et présentant une garniture s'étendant sur une surface périphérique externe (3) d'un corps de base du couvercle (2) ou sur un bord intérieur (9) de la bride (20) de l'ouverture du réservoir avec une bague d'étanchéité (8), le corps de base du couvercle (2) étant réalisé comme un cône tronqué plat doté d'une surface périphérique externe (3) s'étendant en cône et la bague d'étanchéité (8) étant disposée dans une rainure (5) de la surface périphérique externe (3) du corps de base du couvercle (2) ou dans une rainure (5) du bord intérieur (9) de la bride (20) s'étendant en cône,
    caractérisé en ce
    que la surface périphérique externe (3) ou le bord intérieur (9) s'appuie contre une butée (21) lorsque le couvercle est fermé, la butée (21) étant disposée sur la même surface que la rainure (5) et à proximité de la rainure (5).
  2. Système selon la revendication 1,
    caractérisé en ce
    que la butée (21) est une saillie disposée sur la surface périphérique externe (3) ou une saillie disposée sur le bord intérieur (9) de l'ouverture du réservoir.
  3. Système selon la revendication 1 ou 2,
    caractérisé en ce
    que la butée (21) s'étend sur toute la surface périphérique externe (3) ou sur toute la surface périphérique du bord intérieur (9) de l'ouverture du réservoir.
  4. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que la butée (21) est, en coupe ou section transversale, de forme ondulée, rectangulaire, trapézoïdale ou semi-trapézoïdale.
  5. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'une paroi latérale (25) de la butée (21) est formée par une paroi latérale (24) de la rainure (5).
  6. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que la rainure (5) est adaptée à la forme de la bague d'étanchéité (8) ou la rainure (5) est, en coupe ou section transversale, de forme rectangulaire et les parois latérales de la rainure (6, 24) s'étendent perpendiculairement à la surface périphérique externe (3) ou au bord intérieur (9).
  7. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'une face inférieure (16) du corps de base du couvercle (2) est à fleur de la face interne (17) du réservoir ou d'une bride (20).
  8. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'une face inférieure (16) du corps de base du couvercle (2) et une face interne (17) contiguë du réservoir ou d'une bride (20) sont à fleur de la bague d'étanchéité (8).
  9. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'un agitateur est disposé sur le corps de base du couvercle (2).
  10. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'un dispositif pivotant (15) servant à ouvrir et fermer le couvercle de manière pivotante est prévu.
  11. Système selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que la surface périphérique externe (3) ou le bord intérieur (9) présente un angle conique dans la plage de 45°.
  12. Réservoir pour produits alimentaires doté d'une ouverture de réservoir et d'un couvercle obturant le trou d'homme (1) pour l'ouverture du réservoir présentant un dispositif de fermeture (10) servant à ouvrir et à fermer le couvercle et présentant une garniture s'étendant sur une surface périphérique externe (3) d'un corps de base (2) ou sur un bord intérieur (9) de l'ouverture du réservoir avec une bague d'étanchéité (8), le corps de base du couvercle (2) étant réalisé comme un cône tronqué plat doté d'une surface périphérique externe (3) s'étendant en cône et la bague d'étanchéité (8) étant disposée dans une rainure (5) de la surface périphérique externe (3) du corps de base du couvercle (2) ou dans une rainure (5) du bord intérieur (9) s'étendant en cône de l'ouverture du réservoir,
    caractérisé en ce
    que la surface périphérique externe (3) ou le bord intérieur (9) s'appuie contre une butée (21) lorsque le couvercle est fermé, la butée (21) étant disposée sur la même surface que la rainure (5) et à proximité de la rainure (5).
EP05002239A 2005-02-03 2005-02-03 Couvercle obturant le trou d'homme d'un réservoir Active EP1688371B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP05002239A EP1688371B1 (fr) 2005-02-03 2005-02-03 Couvercle obturant le trou d'homme d'un réservoir
AT05002239T ATE365691T1 (de) 2005-02-03 2005-02-03 Mannlochdeckel für eine tanköffnung
ES05002239T ES2289607T3 (es) 2005-02-03 2005-02-03 Tapa para registro de un deposito.
PL05002239T PL1688371T3 (pl) 2005-02-03 2005-02-03 Pokrywa włazu zbiornika
DE502005000936T DE502005000936D1 (de) 2005-02-03 2005-02-03 Mannlochdeckel für eine Tanköffnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05002239A EP1688371B1 (fr) 2005-02-03 2005-02-03 Couvercle obturant le trou d'homme d'un réservoir

Publications (2)

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

Family

ID=34933571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002239A Active EP1688371B1 (fr) 2005-02-03 2005-02-03 Couvercle obturant le trou d'homme d'un réservoir

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015008885U1 (de) 2015-12-22 2016-01-26 Rüdiger Thrun Deckelsystem für eine Tanköffnung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106628712A (zh) * 2016-10-31 2017-05-10 中车长江车辆有限公司 一种罐车
NO345596B1 (no) * 2019-05-16 2021-05-03 Total Betong As Beholder med luke og framgangsmåte for å frambringe tilkomst til beholderen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUT76767A (en) * 1992-05-20 1997-11-28 Flaga Handel Cover for a tank
DE29901934U1 (de) * 1999-02-04 1999-04-22 Stoecklin Logistik Ag Schnellverschluß für den Mannlochdeckel eines Containers
DE20316751U1 (de) * 2003-10-31 2004-01-15 Thrun, Rüdiger Mannlochdeckel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015008885U1 (de) 2015-12-22 2016-01-26 Rüdiger Thrun Deckelsystem für eine Tanköffnung
DE102016012780A1 (de) 2015-12-22 2017-06-22 Rüdiger Thrun Deckelsystem für eine Tanköffnung
DE102016012780B4 (de) 2015-12-22 2018-11-22 Rüdiger Thrun Deckelsystem für eine Tanköffnung

Also Published As

Publication number Publication date
DE502005000936D1 (de) 2007-08-09
EP1688371A1 (fr) 2006-08-09
PL1688371T3 (pl) 2007-11-30
ATE365691T1 (de) 2007-07-15
ES2289607T3 (es) 2008-02-01

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