EP2098729A1 - Pompe péristaltique - Google Patents

Pompe péristaltique Download PDF

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Publication number
EP2098729A1
EP2098729A1 EP09154479A EP09154479A EP2098729A1 EP 2098729 A1 EP2098729 A1 EP 2098729A1 EP 09154479 A EP09154479 A EP 09154479A EP 09154479 A EP09154479 A EP 09154479A EP 2098729 A1 EP2098729 A1 EP 2098729A1
Authority
EP
European Patent Office
Prior art keywords
main body
wall
contact
tube
contact body
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
EP09154479A
Other languages
German (de)
English (en)
Other versions
EP2098729B1 (fr
Inventor
Gino Cocchi
Gianni Zaniboni
Roberto Lazzarini
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.)
Carpigiani Group Ali SpA
Original Assignee
Carpigiani Group Ali SpA
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 Carpigiani Group Ali SpA filed Critical Carpigiani Group Ali SpA
Publication of EP2098729A1 publication Critical patent/EP2098729A1/fr
Application granted granted Critical
Publication of EP2098729B1 publication Critical patent/EP2098729B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0018—Special features the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/06—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0072—Special features particularities of the flexible members of tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1276—Means for pushing the rollers against the tubular flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1284—Means for pushing the backing-plate against the tubular flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/08—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having peristaltic action

Definitions

  • the present invention relates to a peristaltic pump.
  • the present invention is applied in the food industry. More in particular, the present invention is applied in machines for producing and dispensing crushed-ice drinks, sorbets, ice creams, soft ice creams, cream, yoghurt and the like and in machines for producing and preserving mixtures for ice cream, creams, sauces, soups and mixtures in general and the like.
  • Peristaltic pumps of the known type comprise a containment body housing a flexible tube in which a fluid flows, the fluid being pumped from an intake section to a delivery section.
  • the containment body is made of two half-parts which are connected to each other.
  • Prior art pumps comprise a rotor which is rotatably connected to a first half-part of the containment body, the outside of the rotor supporting a plurality of idle rollers positioned with their axis of rotation perpendicular to a direction of tube extension.
  • rollers are in contact with the tube and, in conjunction with a contact wall opposite the rotor relative to the tube, they create respective tube constrictions.
  • the constrictions are moved from intake to delivery to convey a portion of the fluid contained in the tube between two constrictions which come one after the other.
  • the tube comprises an intake coupling and a delivery coupling and is made of flexible plastic material such as polymeric or silicone material.
  • the diameter of the tube in conjunction with the speed of rotation of the rotor, determines the pump capacity.
  • the contact wall is made in a second half-part of the containment body.
  • the two half-parts must be moved away from each other in order to move the wall away from the rollers and free the tube so that it can be extracted from the containment body.
  • the width of the contact wall is substantially equal to the width of the tube at the constriction.
  • the technical purpose of the present invention is to propose a peristaltic valve which is free of the above-mentioned disadvantages.
  • the present invention has for an aim to propose a peristaltic valve which is easy to maintain.
  • Another aim of the present invention is to propose a peristaltic valve which can easily be adapted to various capacity requirements.
  • the present invention achieves said technical purpose and the aim specified with a peristaltic valve comprising the technical features described in one or more of claims herein.
  • the numeral 1 denotes as a whole a peristaltic pump in accordance with the present invention.
  • the peristaltic pump 1 comprises a main body 2 and a contact body 3 which is slidably connected to the main body 2.
  • a tube 4 made of flexible material is positioned between the main body 2 and the contact body 3.
  • the tube 4 allows the transit of a fluid to be pumped from an intake section 5 to a delivery section 6.
  • the tube 4 comprises an intake coupling 7 located at the intake section 5 and a delivery coupling 8 located at the delivery section 6.
  • the peristaltic pump 1 also comprises a rotor 9 which is rotatably connected to the main body 2 and supports a plurality or rollers 10.
  • the rotor 9 rotates about its own axis of rotation "A" which is perpendicular to a direction in which the tube 4 lies ( Figures 1 and 2 ).
  • the rotor 9 comprises a central shaft 11 and two parallel triangular brackets 12 at whose vertices three rollers 10 are supported.
  • Each roller 10 is separated from the others by an equal angle of 120° relative to the rotor 9 and lies with its own axis of rotation "B" substantially perpendicular to the direction in which the tube 4 lies and, therefore, substantially parallel with the axis of rotation "A" of the rotor 9.
  • the contact body 3 comprises a vaulted inner wall 13.
  • Said inner wall 13 has a section, made along a plane perpendicular to the axes of rotation "B" of the rollers 10, which substantially has the shape of an arc of a circle in such a way that its concavity is towards the rotor 9.
  • the flexible tube 4 lies between the inner wall 13 of the contact body 3 and the rollers 10 of the rotor 9.
  • the contact body 3 can move by sliding between a first position and a second position towards/away from the rotor 9.
  • the contact body 3 lies in such a way that the inner wall 13 is at its closest to the rotor 9 ( Figures 1 and 3 ).
  • the inner wall 13 is at its closest to the rollers 10.
  • the tube 4 lies compressed between the rollers 10 and the inner wall 13 in such a way that the rollers 10 press the tube 4 against the inner wall 13 so as to form local constrictions.
  • the inner wall 13 at least partly forms a contact surface 14 for the tube 4.
  • the rotor 9 drives the rotation of the rollers 10 in which the corresponding constrictions move from the intake section 5 to the delivery section 6. In this way, a portion of fluid contained between two constrictions that come one after the other is conveyed from the intake section 5 to the delivery section 6.
  • the contact body 3 lies in such a way that the inner wall 13 is at its furthest from the rotor 9 ( Figures 2 , 4 and 5 ).
  • the inner wall 13 is at its furthest from the rollers 10.
  • the peristaltic pump 1 also comprises movement means 16 connected to the contact body 3 for moving it between the first and second positions.
  • the movement means 16 comprise a covering door 17 pivoting at the main body 2 and connected to the contact body 3.
  • the covering door 17 can rotate between a lowered position corresponding to the first position of the contact body 3 and a raised position corresponding to the second position of the contact body 3.
  • the covering door 17 when the covering door 17 lies in the lowered position, it covers a hollow space formed between the main body 2 and the contact body 3 when the latter lies in the first position.
  • the covering door 17 has a front surface 17a which, in conjunction with a front surface 2a of the main body 2, forms an uninterrupted front surface 1a of the peristaltic pump 1.
  • the covering door 17 lies distanced from the main body 2 and frees the access compartment 15 formed when the contact body 3 is in its second position.
  • the covering door 17 comprises a front panel 18 and two parallel lateral shoulders 19 connected to opposite sides of the main body 2 and of the contact body 3.
  • the covering door 17 comprises pins 20 inserted in corresponding housing cavities 21 made in the main body 2 allowing rotation relative to the latter ( Figures 3 and 4 ).
  • the pins 20 are made on the lateral shoulders 19 of the covering door 17.
  • the covering door 17 also comprises two projections 22 made on the shoulders 19 and eccentric relative to the pins 20.
  • the projections 22 are slidably inserted in straight guides 23 made on opposite sides of the contact body 3.
  • the contact body 3 comprises two tongues 24 located at its opposite sides and which can be housed in corresponding guide grooves 25 made in the main body 2.
  • the contact body 3 comprises two central tabs 26 which are parallel with each other and housed in respective recesses 27 made in the main body 2.
  • the tongues 24 and the tabs 26 allow the contact body 3 to slide stably and efficiently relative to the main body 2.
  • each pin 20 and each projection 22 is aligned with the corresponding guide 23.
  • the covering door 17 can be moved in such a way that the pins 20 can exit the receiving cavities 21 and enter the straight guides 23. In this way, the covering door 17 remains connected to the contact body 3 but it is disengaged from the main body 2. In other words, the contact body 3 can be moved away from the main body 2.
  • the peristaltic pump 1 also comprises a first sleeve 28 and a second sleeve 29 connected to the contact body 3 and open at the sides for housing respectively the intake coupling 7 and the delivery coupling 8 of the tube 4 and keeping them in the correct position.
  • the intake coupling 7 and the delivery coupling 8 preferably lie parallel with each other.
  • first sleeve 28 and the second sleeve 29 also lie parallel with each other.
  • the contact surface 14 is semi-cylindrical.
  • this allows the constrictions to be maintained for as long as possible so as to increase peristaltic pump 1 efficiency above all at high operating speeds.
  • the main body 2 comprises a supporting portion 30 and a base 31 which are fixed to each other.
  • the supporting portion 30 is fixed to the base 31 by screws.
  • the rotor 9 is rotatably connected between the base 31 and the supporting portion 30.
  • the tube 4 is housed between the contact body 3 and the supporting portion 30 of the main body 2.
  • the contact body 3 slides on the base 31 towards and/or away from the supporting portion 30.
  • the base 31 comprises a curved wall 32 at least partly forming the contact surface 14 ( Figures 2 and 5 ).
  • the curved wall 32 made in the base 31 is alongside the inner wall 13 of the contact body 3.
  • the curved wall 32 and the inner wall 13 form, in conjunction with each other, a single contact surface 14.
  • the constrictions formed by the rollers 10 in conjunction with the contact body 3 also partly extend in the base 31, lying on the curved wall 32.
  • the curved wall 32 has a predetermined width so that when the curved wall 32 is drawn near the inner wall 13, the overall length of the contact surface 14 is substantially equal to the width of the tube 4 at the constrictions.
  • the rollers 10 have a length substantially equal to the width of the tube 4 at the constrictions.
  • the tube 4 must be substituted.
  • the capacity of the peristaltic pump 1 depends is the internal diameter of the tube 4. If the capacity must be increased, the tube 4 must be substituted with another tube that has a bigger diameter. Similarly, if the capacity must be reduced, the tube 4 is substituted with a tube having a smaller diameter.
  • the width of the contact surface 14 must be substantially equal to the width of the tube 4 at the constrictions. Consequently, after changing the tube 4 the width of the contact surface 14 must also be adapted.
  • the width of the contact surface 14 is adapted simply and rapidly by changing only the base 31.
  • a plurality of bases 31 may be prepared, each having the curved wall 32 with a predetermined and distinct width, so that, in conjunction with the inner wall 13 of the contact body 3, the width of the contact surface 14 is adapted according to the diameter of the tube 4.
  • the peristaltic pump 1 comprises a spacer which is positioned between the base 31 and the supporting portion 30.
  • the curved wall 32 is made on the spacer. To change the capacity of the peristaltic pump 1 by changing the tube 4, only the spacer needs substituting.
  • the invention achieves the preset aims and brings important advantages.
  • the peristaltic pump comprises a contact body which can move by sliding relative to the main body, the tube can be checked and substituted, if necessary, in an extremely simple and rapid fashion. It is sufficient to move the contact body along the main body to move the inner wall away from the rotor, creating the access compartment and freeing the tube.
  • This operation is simple to perform, since it only involves lifting the covering door to cause the contact body to slide.
  • Another advantage indicated above relates to the angling of the intake and delivery couplings. Since said couplings are parallel with each other, the constrictions produced by the rollers cover an arc of a circle substantially equivalent to 180°. As already indicated, this increases peristaltic pump efficiency both at low and high speeds, and means that the pump is much more compact than prior art pumps.
  • Another advantage of the peristaltic pump in accordance with the present invention relates to the contact surface which is partly formed by the inner wall of the contact body and partly formed by the curved surface of the base of the main body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • External Artificial Organs (AREA)
EP09154479A 2008-03-07 2009-03-06 Pompe péristaltique Not-in-force EP2098729B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000152A ITBO20080152A1 (it) 2008-03-07 2008-03-07 Pompa peristaltica.

Publications (2)

Publication Number Publication Date
EP2098729A1 true EP2098729A1 (fr) 2009-09-09
EP2098729B1 EP2098729B1 (fr) 2012-05-16

Family

ID=40292638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154479A Not-in-force EP2098729B1 (fr) 2008-03-07 2009-03-06 Pompe péristaltique

Country Status (3)

Country Link
EP (1) EP2098729B1 (fr)
CN (1) CN101532485A (fr)
IT (1) ITBO20080152A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2487641A (en) * 2011-01-25 2012-08-01 Bosch Gmbh Robert Peristaltic pump with releasable head
ITBO20110165A1 (it) * 2011-03-30 2012-10-01 Carpigiani Group Ali Spa Macchina per la produzione e l'erogazione di prodotti semiliquidi e/o semisolidi.
US9756870B2 (en) 2010-04-15 2017-09-12 Ali S.P.A.-Carpigiani Group Device for detecting the bacterial charge in a liquid or semi-liquid food product
US10451055B2 (en) 2015-01-08 2019-10-22 Seko S.P.A. Peristaltic pump head having a reduction gear and triangular circuit board snap-fit to a pump housing and having changeable orientations
IT201900002111A1 (it) * 2019-02-13 2020-08-13 Ali Group Srl Carpigiani Macchina per la produzione di prodotti alimentari liquidi o semiliquidi.
US10788036B2 (en) 2015-01-08 2020-09-29 Seko S.P.A. Peristaltic pump
CN113825911A (zh) * 2019-06-03 2021-12-21 凡尔克斯医药系统公司 用于受控分配流体的基于蠕动泵的装置和方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979708A (zh) * 2012-11-07 2013-03-20 无锡惠山泵业有限公司 隔膜水泵
EP4032514B1 (fr) * 2014-11-06 2024-04-24 ZOLL Circulation, Inc. Système d'échange de chaleur de régulation de la température d'un patient doté d'une pompe péristaltique haute performance à chargement facile
CN105257519A (zh) * 2015-11-20 2016-01-20 广东伟创科技开发有限公司 蠕动泵
WO2017127677A1 (fr) 2016-01-22 2017-07-27 Rigado Inc. Correction binaire compressée sur réseau sans fil
US10670006B2 (en) 2016-01-22 2020-06-02 Graco Minnesota Inc. Hose bracket for texture sprayer
CN106994419B (zh) * 2016-01-22 2020-09-18 固瑞克明尼苏达有限公司 用于纹理喷涂器的软管托架
DE102016009174B3 (de) * 2016-07-29 2017-11-02 W. O. M. World of Medicine GmbH Schlauchkassette für eine peristaltische Pumpe mit elastischen Schenkeln
WO2018082066A1 (fr) * 2016-11-04 2018-05-11 肖立峰 Pompe à membrane pour conduite
CN106837754A (zh) * 2017-02-23 2017-06-13 肖立峰 多相管道隔膜泵
EP3483440B1 (fr) 2017-11-08 2020-05-27 Oina VV AB Pompe péristaltique
CN110303806B (zh) * 2019-03-21 2021-08-10 义乌市义心科技有限责任公司 一种基于置换进行灌装的保湿笔墨盒
CN112096600B (zh) * 2020-09-10 2022-04-05 桂林航天工业学院 一种用于材料运输的蠕动泵

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558996A (en) 1983-06-30 1985-12-17 Organon Teknika Corporation Easy load peristaltic pump
US4925376A (en) 1987-06-26 1990-05-15 Tek-Aids, Inc. Peristaltic pump with tube holding mechanism
US20040037724A1 (en) * 2000-12-12 2004-02-26 Christian Haser Peristaltic hose pump
US20050254978A1 (en) 2002-11-13 2005-11-17 Wolfgang Huber Peristaltic pump
DE202006003464U1 (de) * 2006-03-06 2006-05-04 Schulte Transportsysteme Gmbh Schlauchpumpe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558996A (en) 1983-06-30 1985-12-17 Organon Teknika Corporation Easy load peristaltic pump
US4925376A (en) 1987-06-26 1990-05-15 Tek-Aids, Inc. Peristaltic pump with tube holding mechanism
US20040037724A1 (en) * 2000-12-12 2004-02-26 Christian Haser Peristaltic hose pump
US20050254978A1 (en) 2002-11-13 2005-11-17 Wolfgang Huber Peristaltic pump
DE202006003464U1 (de) * 2006-03-06 2006-05-04 Schulte Transportsysteme Gmbh Schlauchpumpe

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9756870B2 (en) 2010-04-15 2017-09-12 Ali S.P.A.-Carpigiani Group Device for detecting the bacterial charge in a liquid or semi-liquid food product
GB2487641A (en) * 2011-01-25 2012-08-01 Bosch Gmbh Robert Peristaltic pump with releasable head
ITBO20110165A1 (it) * 2011-03-30 2012-10-01 Carpigiani Group Ali Spa Macchina per la produzione e l'erogazione di prodotti semiliquidi e/o semisolidi.
EP2505070A1 (fr) 2011-03-30 2012-10-03 ALI S.p.A. - Carpigiani Group Machine permettant de fabriquer et de distribuer des produits semi-liquides et/ou semi-solides
US9402408B2 (en) 2011-03-30 2016-08-02 ALI S.p.A—CARPIGIANI GROUP Machine for making and dispensing semiliquid and/or semisolid products
US10451055B2 (en) 2015-01-08 2019-10-22 Seko S.P.A. Peristaltic pump head having a reduction gear and triangular circuit board snap-fit to a pump housing and having changeable orientations
US10788036B2 (en) 2015-01-08 2020-09-29 Seko S.P.A. Peristaltic pump
IT201900002111A1 (it) * 2019-02-13 2020-08-13 Ali Group Srl Carpigiani Macchina per la produzione di prodotti alimentari liquidi o semiliquidi.
EP3695731A1 (fr) * 2019-02-13 2020-08-19 Ali Group S.r.l. - Carpigiani Machine de fabrication de produits alimentaires liquides ou semi-liquides
US11533931B2 (en) 2019-02-13 2022-12-27 Ali Group S.R.L.—Carpigiani Machine for making liquid or semi-liquid food products
CN113825911A (zh) * 2019-06-03 2021-12-21 凡尔克斯医药系统公司 用于受控分配流体的基于蠕动泵的装置和方法
CN113825911B (zh) * 2019-06-03 2023-07-28 凡尔克斯医药系统公司 用于受控分配流体的基于蠕动泵的装置和方法

Also Published As

Publication number Publication date
ITBO20080152A1 (it) 2009-09-08
EP2098729B1 (fr) 2012-05-16
CN101532485A (zh) 2009-09-16

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