EP0448937A2 - Schlauchpumpe - Google Patents

Schlauchpumpe Download PDF

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Publication number
EP0448937A2
EP0448937A2 EP19910101417 EP91101417A EP0448937A2 EP 0448937 A2 EP0448937 A2 EP 0448937A2 EP 19910101417 EP19910101417 EP 19910101417 EP 91101417 A EP91101417 A EP 91101417A EP 0448937 A2 EP0448937 A2 EP 0448937A2
Authority
EP
European Patent Office
Prior art keywords
peristaltic pump
pressure piece
pump according
hose
cam
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.)
Withdrawn
Application number
EP19910101417
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0448937A3 (en
Inventor
Reinhold Hopfensperger
Rudolf Tungl
Albert Rockermeier
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Alcatel SEL AG
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 Alcatel SEL AG filed Critical Alcatel SEL AG
Publication of EP0448937A2 publication Critical patent/EP0448937A2/de
Publication of EP0448937A3 publication Critical patent/EP0448937A3/de
Withdrawn legal-status Critical Current

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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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1238—Machines, pumps, or pumping installations having flexible working members having peristaltic action using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical

Definitions

  • the application relates to a hose pump, which is arranged on a circular path and has a hose for the progressive and recurring compression of the hose, which can be driven by an electric motor with the interposition of a speed-reducing device.
  • Peristaltic pumps of this type are known (brochure: "Type 14 metering pump” from SBS-Feintechnik, 7745 Schonach).
  • This known peristaltic pump has a very complex design because it consists of three separate units, namely the electric motor, a multi-stage reduction gear and the pump.
  • the technical problem underlying the invention now consists in creating a peristaltic pump which is constructed in a manner which is production-friendly and less expensive.
  • the hose pump according to the invention is compact and easy to manufacture. It can therefore be manufactured inexpensively, so that its use is also possible for those applications in which it has previously been excluded for reasons of cost. It also produces a more uniform flow than the known hose pump and has a low mechanical stress on the hose.
  • FIG. 1 and 2 is a peristaltic pump, in which the pressure piece acts in the radial direction on the hose and the hose has a wrap angle greater than 360 degrees, so that in one area the suction part and the pressure part of the Hose next to each other.
  • the electric motor 1 can be seen, which is connected to the housing 2.
  • the output shaft 3 of the electric motor 1 is provided with the drive worm 4, which can either be attached as a separate part to the output shaft 3 or can be molded into the output shaft 3.
  • the drive worm 4 is in engagement with the worm wheel 5; it should preferably be designed to be catchy.
  • the worm wheel 5 can also be replaced by a helical spur gear.
  • the hose 6 is arranged on the inner circumference of the housing 2.
  • the worm wheel 5 is rotatably mounted on the axis 7 fastened, for example injected, in the housing 2 and connected in one piece to a pressure piece. In the embodiment shown in FIGS.
  • the pressure piece consists of the asymmetrical cam 8, which is loosely surrounded by the circular cylinder 9 having a solid wall.
  • the cam 8 is set in rotation by the worm wheel 5
  • the circular cylinder 9 rolls on the tube 6 and progressively compresses it.
  • a cavity 10 is provided in the tip of the cam 8. This cavity 10 results in a certain elasticity of the cam tip, as a result of which tolerances between the components are compensated for and a hard load on the hose 6 is avoided. This leads to a considerable increase in the service life of the hose and thus the hose pump.
  • the embodiment of the hose pump according to the invention shown in FIG. 3 differs from the hose pump according to FIGS. 1 and 2 in that the speed reduction device consists of one two-stage spur gear.
  • the components of the hose pump which are identical to the components of the hose pump according to FIGS. 1 and 2, are provided with the same reference numerals.
  • the spur gear consists of the pinion 28 arranged on the output shaft 3, the gear 30 and pinion 31 arranged on the shaft 29, and the gear 32, which is integrally connected to the cam 8.
  • any known transmission can be used as the speed reduction device.
  • Figures 4 to 8 show further embodiments of the pressure piece.
  • the pressure piece consists of the block-like cam 11, at the end of which is remote from the axis 7, the leaf spring 12, which has the shape of a crutch stick handle, is arranged.
  • This embodiment of the pressure piece is also surrounded by a circular cylinder 9.
  • the pressure piece consists of the circular cylindrical cam 13, which is arranged asymmetrically with respect to the axis 7 (not shown) on the worm wheel 5 and on which the circular cylinder 14 is loosely arranged.
  • This circular cylinder 14 is double-walled such that cavities 15 are present between the outer and inner walls. These cavities 15 have the same function as the cavity 10 (FIG. 1) and the leaf spring 12 (FIG. 3).
  • the cam 13 can be replaced by an axle stub on which a bushing is rotatably arranged.
  • the pressure piece consists of the rigid cam 16 and the circular cylinder 14.
  • Fig. 7 shows a further embodiment of the pressure piece, in which the cam 17 has a U-shaped end 18 in which a roller 19 is rotatably mounted.
  • the cavity 20 is provided below the roller 19.
  • This embodiment of the pressure piece can also be provided with a circular cylinder 9. Instead of the cavity 20, a circular cylinder 14 can also be provided.
  • the pressure piece consists of the following components: The eccentrically arranged pin 33 on which the bushing 35 provided with the elastic tire 34 is rotatably mounted. Bushing 35 with tires 34 can additionally be loosely surrounded by the rigid cylinder 36.
  • FIGS. 9 to 11 show an embodiment of the hose pump according to the invention, in which the pressure pieces act on the hose 21 in the axial direction.
  • the construction of the peristaltic pump can be clearly seen from the longitudinal section in FIG. 10. It consists of the housing 22 and the worm wheel 23, which has a cup-shaped shape and can be driven by the drive worm 24. Inside the worm wheel 23, the rollers 25 are rotatably mounted in corresponding holders.
  • the axially flexible bearing 27 of the worm wheel 23 can be replaced by an axially resilient individual bearing of the rollers 25 in the worm wheel 23. If in the hose pump according to FIGS. 9 to 11 the hose 21 has a wrap angle of more than 360 degrees, the worm wheel 23 can also be equipped with only one roller 25.
  • FIG. 9 shows a top view of the housing 22 with a hose 21 when the worm wheel 23 has been removed from the axis 26. Only the roller 25 is shown.
  • FIG 11 shows the top view of the rear of the peristaltic pump.
  • the drive screw 24 can be seen after a part of the housing 22 has been provided with a cutout.
  • the moving components of the hose pump according to the invention can consist of both metal and plastic. In the case of sliding friction between two components, it depends on the selected material pairing whether additional lubrication is required.
  • FIGS. 12 and 13 show the housing 2, through the upper part of which the output shaft 3 with the pinion 28 fixed thereon projects.
  • the pinion 28 is in engagement with the gear 30.
  • a drive worm and a worm gear could also be used.
  • the gear 30 is integrally connected to the cylindrical extension 37, which are rotatably arranged together on the axis 7.
  • the hollow cylindrical pressure piece 38 is arranged between the extension 37 and the hose 6, which is arranged in a 360 ° loop.
  • the extension 37 and the pressure piece 38 are arranged in the manner of a planetary gear, the extension 37 acting as a sun gear and the pressure piece 38 as a planet gear. If the hose pump designed in this way is to be used only for the conveyance of liquids, then a force-locking coupling of the extension 37 and the pressure piece 38 is sufficient. However, an at least partially positive coupling of extension 37 and pressure piece 38 is expedient for the use of the peristaltic pump for metered delivery. In the embodiment shown, this is achieved in that the two ends of the extension 37 of the pressure piece 38 are provided with teeth 39.
  • the pressure piece 38 can consist entirely or partially of an elastic material, for example a rigid tube and an elastic sleeve.
  • the embodiment of the peristaltic pump shown has only one pressure piece 38. However, a plurality of pressure pieces 38 can also be provided, which are required in a configuration of the hose pump with a hose loop of ingung 180 °.
  • the embodiment of the peristaltic pump shown in Figures 12 and 13 is particularly suitable for providing a higher delivery rate, e.g. 120 ml / min with a low torque requirement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP19910101417 1990-02-23 1991-02-02 Hose pump Withdrawn EP0448937A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4005725 1990-02-23
DE4005725 1990-02-23
DE4031554A DE4031554A1 (de) 1990-02-23 1990-10-05 Schlauchpumpe
DE4031554 1990-10-05

Publications (2)

Publication Number Publication Date
EP0448937A2 true EP0448937A2 (de) 1991-10-02
EP0448937A3 EP0448937A3 (en) 1992-01-02

Family

ID=25890459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910101417 Withdrawn EP0448937A3 (en) 1990-02-23 1991-02-02 Hose pump

Country Status (4)

Country Link
US (1) US5173038A (da)
EP (1) EP0448937A3 (da)
CA (1) CA2036182A1 (da)
DE (1) DE4031554A1 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570259A1 (fr) * 1992-05-13 1993-11-18 Seb S.A. Pompe péristaltique à support élastique extérieur au stator
EP3009679A1 (en) * 2014-10-14 2016-04-20 Carpegen GmbH Hose pump and device for analysing a chemical or biological sample

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5342181A (en) * 1992-06-15 1994-08-30 Datascope Investment Corp. Single roller blood pump and pump/oxygenator system using same
US5447417A (en) * 1993-08-31 1995-09-05 Valleylab Inc. Self-adjusting pump head and safety manifold cartridge for a peristaltic pump
US6532835B1 (en) * 1997-12-12 2003-03-18 Research International, Inc. High efficiency wetted surface cyclonic air sampler
US6871551B2 (en) * 2000-06-28 2005-03-29 Endress + Hauser Wetzer Gmbh + Co. Kg Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus
US20030153872A9 (en) * 2000-09-22 2003-08-14 Tanner Howard M. C. Apparatus and method for micro-volume infusion
US7036751B1 (en) * 2003-12-15 2006-05-02 Lund And Company Invention, Llc Pump operated spraying device
US8747084B2 (en) 2010-07-21 2014-06-10 Aperia Technologies, Inc. Peristaltic pump
EP2596243A4 (en) 2010-07-21 2018-01-10 Aperia Technologies Tire inflation system
BR112014022974B1 (pt) 2012-03-20 2021-08-17 Aperia Technologies Sistema de inflagem de pneu
US11453258B2 (en) 2013-03-12 2022-09-27 Aperia Technologies, Inc. System for tire inflation
US9604157B2 (en) 2013-03-12 2017-03-28 Aperia Technologies, Inc. Pump with water management
US10144254B2 (en) 2013-03-12 2018-12-04 Aperia Technologies, Inc. Tire inflation system
MX2019002569A (es) 2016-09-06 2019-10-07 Aperia Tech Inc Sistema para inflado de neumáticos.
WO2020112686A1 (en) 2018-11-27 2020-06-04 Aperia Technologies, Inc. Hub-integrated inflation system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551605A (en) * 1948-12-31 1951-05-08 David T James Displacement pump
US2975719A (en) * 1958-11-07 1961-03-21 Kaufman Samuel Variable cam driven pump
DE1528964A1 (de) * 1965-08-06 1969-06-19 Bosch Gmbh Robert Zugabevorrichtung fuer Wasch- oder Geschirrspuelmaschinen
DE2033344A1 (de) * 1969-10-20 1971-06-09 Institut fur Technologie der Gesund heitsbauten, χ 1134 Berlin Proportionalpumpe als Rollenpumpe
FR2347106A1 (fr) * 1976-04-07 1977-11-04 Gubian Rolland Machine a former une pate a partir d'un liquide et d'un produit pulverulent et a la projeter
FR2383333A1 (fr) * 1977-03-11 1978-10-06 Malbec Edouard Pompe peristaltique
US4271988A (en) * 1977-07-07 1981-06-09 Pitman-Moore, Inc. Dispensing of fluent materials
US4547136A (en) * 1984-11-05 1985-10-15 Manostat Corporation Variable displacement peristaltic pump
EP0320963A2 (de) * 1987-12-18 1989-06-21 Renato Vicentini Nach Art einer Drehkolbenpumpe wirkende volumetrische Pumpe für flüssige oder gasförmige Medien

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899905A (en) * 1959-08-18 becher
US409000A (en) * 1889-08-13 Surgical pump for transfusion of blood
US2897767A (en) * 1956-12-31 1959-08-04 Cordis Nat Tube flexing pump
US3597123A (en) * 1969-06-02 1971-08-03 Otto P Lutz Apparatus for feeding and compressing gases and liquids
DD272036A1 (de) * 1988-05-09 1989-09-27 Karl Marx Stadt Tech Hochschul Radialperistaltikschlauchpumpe
DE3827722C1 (da) * 1988-08-16 1989-12-07 Fresenius Ag, 6380 Bad Homburg, De

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551605A (en) * 1948-12-31 1951-05-08 David T James Displacement pump
US2975719A (en) * 1958-11-07 1961-03-21 Kaufman Samuel Variable cam driven pump
DE1528964A1 (de) * 1965-08-06 1969-06-19 Bosch Gmbh Robert Zugabevorrichtung fuer Wasch- oder Geschirrspuelmaschinen
DE2033344A1 (de) * 1969-10-20 1971-06-09 Institut fur Technologie der Gesund heitsbauten, χ 1134 Berlin Proportionalpumpe als Rollenpumpe
FR2347106A1 (fr) * 1976-04-07 1977-11-04 Gubian Rolland Machine a former une pate a partir d'un liquide et d'un produit pulverulent et a la projeter
FR2383333A1 (fr) * 1977-03-11 1978-10-06 Malbec Edouard Pompe peristaltique
US4271988A (en) * 1977-07-07 1981-06-09 Pitman-Moore, Inc. Dispensing of fluent materials
US4547136A (en) * 1984-11-05 1985-10-15 Manostat Corporation Variable displacement peristaltic pump
EP0320963A2 (de) * 1987-12-18 1989-06-21 Renato Vicentini Nach Art einer Drehkolbenpumpe wirkende volumetrische Pumpe für flüssige oder gasförmige Medien

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570259A1 (fr) * 1992-05-13 1993-11-18 Seb S.A. Pompe péristaltique à support élastique extérieur au stator
FR2691210A1 (fr) * 1992-05-13 1993-11-19 Seb Sa Pompe péristaltique à support élastique extérieur au stator.
EP3009679A1 (en) * 2014-10-14 2016-04-20 Carpegen GmbH Hose pump and device for analysing a chemical or biological sample
WO2016058926A1 (en) * 2014-10-14 2016-04-21 Carpegen Gmbh Hose pump and device for analysing a chemical or biological sample
CN107076136A (zh) * 2014-10-14 2017-08-18 柯蒂斯有限责任公司 软管泵和对化学样品或生物样品进行分析的装置

Also Published As

Publication number Publication date
US5173038A (en) 1992-12-22
CA2036182A1 (en) 1991-08-24
EP0448937A3 (en) 1992-01-02
DE4031554A1 (de) 1991-08-29

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