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WO1982000498A1 - Peristaltic pump - Google Patents

Peristaltic pump Download PDF

Info

Publication number
WO1982000498A1
WO1982000498A1 PCT/AT1981/000019 AT8100019W WO8200498A1 WO 1982000498 A1 WO1982000498 A1 WO 1982000498A1 AT 8100019 W AT8100019 W AT 8100019W WO 8200498 A1 WO8200498 A1 WO 8200498A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
pressure body
central part
counter
cam
Prior art date
Application number
PCT/AT1981/000019
Other languages
German (de)
French (fr)
Inventor
H List
Original Assignee
Kleinhappl E
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 Kleinhappl E filed Critical Kleinhappl E
Publication of WO1982000498A1 publication Critical patent/WO1982000498A1/en

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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
    • F04B43/1253—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

Definitions

  • the invention relates to a peristaltic pump with several via a planetary gear from a central part drivable rollers, which roll on at least one hose that carries the medium to be conveyed, with a view of its free cross-section, and which are rotatably held in its rotatably mounted carrier , wherein the rollers are preferably mounted with greater play in the carrier and are in frictional contact with the central part with at least part of their circumference, at least while it is in contact with the hose.
  • Such a hose pump is such.
  • B. become known from DE-OS 1,932,847.
  • the hose is tightened at two points and runs in a U-shape between the clamping points, this area of this hose enclosing the carrier together with the rollers.
  • the aim of the invention is to propose a peristaltic pump of the type mentioned at the outset, which ensures extensive protection of the tube and in which it is found that it can be achieved with the least adjustment effort.
  • a back pressure body pressing the hose against at least one roller is provided in a manner known per se and in that the back pressure body is held displaceably in relation to the central part in its radial direction on a base plate and by means of at least one Eeder in the direction of the central part is too biased.
  • a peristaltic pump with a counter pressure body for supporting the hose has already been proposed by DE-OS 1,553,005, but the counter pressure body is rigidly attached to the base plate.
  • this known pump does not have a support for the rollers, which is rotatably mounted on the central part, but a cylindrical guide track for the rollers, which is incorporated into the base plate.
  • the Eeder (s) is supported on a screw inserted into a threaded bore of the counter pressure body or are. In this way, a simple control of the pretension and thus the contact pressure of the rollers against the hoses is possible, by means of which an exact adaptation of the pump characteristics to the required values can be achieved.
  • a further feature of the invention provides that a cam is rotatably held on the counter-pressure body, the axis of rotation of which is at a greater distance from the axis of rotation of the central part than one on the base plate Stationarily held stop on which the cam can be brought to its position in its locked position in order to hold the counter pressure body in a position remote from the central part against the force of the eder (s).
  • This makes it possible in a simple manner by moving the cam to hold the counter pressure body against its bias in a position distant from the central part, as a result of which the hose or hoses are easily accessible and can be easily replaced. After the replacement, the cam only needs to be returned to its normal position and the peders press the counterpressure body against the central body again, so that the pump is ready for use again.
  • a particularly preferred embodiment of such a pump is characterized in that the cam is connected to a handle which is substantially perpendicular to the longitudinal axis of the cam and in its working position in which the cam is lifted from the stop, preferably up to the shaft of the Central body extends.
  • a handle which is substantially perpendicular to the longitudinal axis of the cam and in its working position in which the cam is lifted from the stop, preferably up to the shaft of the Central body extends.
  • FIG. 1 shows a partial section through a hose pump according to the invention
  • FIG. 2 shows a top view of the pump according to FIG. 1,
  • FIG. 3 shows a section through the support of the counter pressure body
  • Figure 4 is a plan view of an embodiment of a pump slightly modified compared to pigments 1 to 3
  • Figure 5 is a simplified sectional view along the line V-V in Figure 4, in which the central part including the carrier and rollers are omitted.
  • the shaft 1 is driven by a motor, not shown, and is connected in a rotationally fixed manner to a central part 3 via the pin 2.
  • This central part 3 has two circumferential grooves in which elastically deformable rubber rings 4, z. B. commercially available O-rings are held. These rubber rings 4 also rest against the rollers 5 and thus drive them with a rotating central part 3 in the manner of a planetary gear in a frictional manner.
  • the stub axles of the rollers 5 are mounted with a relatively large amount of play in the two discs 7 forming the carrier 6.
  • the stub axles of the rollers 5 are held by means of gasoline disks 8 and washers 9.
  • the disks 7 are mounted on the central part 3 and can be rotated relative to the latter.
  • the tubes 10 rest against a counter pressure body 11 and are squeezed by the rollers 5, whereby the volume enclosed between two pinch points in the tubes 10 is further conveyed to the tubes during the rolling of the rollers 5.
  • the back pressure is body 11 by means of two stepped and provided with a thread 13 bolts 12 which pass through two parallel slots 14 of the base plate 15, in the direction of the axis of the central part 3 slidably held in the base plate 15.
  • the bolts 12 can be locked by means of the nuts 16 and are provided with pins 17 which guide springs 18 which are supported on grub screws 20 which are screwed into the counter-pressure body 11 and close bores 19. This makes it possible to adjust the gap between the envelope of the rollers 5 and the counter-pressure body 11 resiliently to the diameter of the hoses 10, with the resilient support from the counter-pressure body 11 and its widening inlet and outlet pressure surges in the hose 10th at the beginning and end of the bruising
  • Hoses can be avoided.
  • the springs de support also compensate for inevitable tolerances during manufacture and assembly, and by guiding the counter-pressure element 11 in two parallel slots 14 serving as guides ensures that the gap between the envelope of the rollers 5 and the counter-pressure element 11 also when changing the gap width depending on the diameter of the tubes 10 in a relatively large area over the pinch area of the rollers 5 remains substantially the same.
  • the rollers 5 are also rotated via the rubber rings 4 and the rollers 5 lying against the tubes 10 roll on the tubes 10, as a result of which the rollers and thus also the discs 7 move on and so on Squeeze zones of the hoses continue to move, which is conveyed in front of a pinch point or between two pinch points of the tubes 10 in this enclosed volume.
  • the hoses 10 are connected to nipples 21, which are held in an assembly block 22, 21 connecting hoses being attachable to the second ends of the nipples.
  • the embodiment according to FIGS. 4 and 5 differs from the one described above only in that the central part of the counter-pressure body 11 'has an opening 27 on its side facing away from the central part 3 and a continuous axis 24 is held in the lateral edge sections of the counter-pressure body 11' is. On this axis a cam 25 is rotatably mounted, which is connected to the handle 26, these two parts forming an "L".
  • This cam 25 can be brought to rest against a stop 23 protruding into the recess 27 and firmly connected to the base plate 15 by folding up the handle 26, which extends perpendicular to the shaft 1 in its working position. Since the free end of the cam protrudes more than half its width over the axis 24, which is at a greater radial distance from the central part 3 than the stop 23, this pushing up of the handle 26 causes the counterpressure body 11 from the central part 3 against the force of the springs 18 moved away. Because of the flat end face of the cam 25, there is a kind of locking of the counterpressure body 11 and of the handle 26 in the position removed or folded up from the central part 3, as a result of which the hoses 10 can be exchanged simply and conveniently.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The peristaltic pump comprises several cylinders (5) rotated by a planetary gearing from a central gearing (3); these cylinders are rolling over at least one hose which conducts the fluid through compression of the free section of the hose. There is provided a counter-pressure body (11) passing the hose (10) against at least a cylinder (5); this body is held on a base plate (15) so as to slide in a radial direction with respect to the central gearing (3); it is taut by at least one spring towards the central gearing (3) Upon replacing the hose, the new hose is thereby located only within the counter-pressure body and, by tightening the counter-pressure body by means of the springs, a sufficient pressing is achieved for ensuring a functional efficiency of the pump. Furthermore, the tolerances in the mounting and the hoses are compensated by the counter-pressure body acting as a spring.

Description

Schlauchpumpe Peristaltic pump
Die Erfindung bezieht sich auf eine Schlauchpumpe mit mehreren über ein Planetengetriebe von einem Zentralteil antreibbaren Rollen, die dabei auf zumindest einem Schlauch, der das zu fördernde Medium führt, unter Quet sehung von dessen freiem Querschnitt abrollen und die in seinem drehbar gelagerten Träger drehbar gehalten sind, wobei die Rollen vorzugsweise mit größerem Spiel im Träger gelagert sind und mit zumindest einem Teil ihres Umfanges, zumindest während des Anliegens an dem Schlauch mit dem Zentral-Teil in reibungsschlüssigem Kontakt stehen.The invention relates to a peristaltic pump with several via a planetary gear from a central part drivable rollers, which roll on at least one hose that carries the medium to be conveyed, with a view of its free cross-section, and which are rotatably held in its rotatably mounted carrier , wherein the rollers are preferably mounted with greater play in the carrier and are in frictional contact with the central part with at least part of their circumference, at least while it is in contact with the hose.
Eine derartige Schlauchpumpe ist z. B. durch die DE-OS 1,932.847 bekannt geworden. Bei dieser bekannten Pumpe ist der Schlauch an zwei Stellen festgespaηnt und verläuft zwischen den Klemmstellen U-förmig, wobei dieser Bereich dieses Schlauches den Träger samt den Rollen umschließt.Such a hose pump is such. B. become known from DE-OS 1,932,847. In this known pump, the hose is tightened at two points and runs in a U-shape between the clamping points, this area of this hose enclosing the carrier together with the rollers.
Dies hat jedoch den Nachteil, daß der Schlauch durch die auf ihn einwirkenden Rollen nicht nur in seinem freien Querschnitt gequetscht, sondern zwangsläufig auch einer Zug- und Stauchbeanspruchung ausgesetzt wird. Dies führt jedoch aufgrund der Überbeanspruchung des Materials rasch zu einer Ermüdung des Schlauches und Nachlassen seiner Elastizität, wodurch die Punktion der Pumpe beeinträchtigt wird. Außerdem erfordert die Justierung der nötigenHowever, this has the disadvantage that the hose is not only squeezed in its free cross-section by the rollers acting on it, but is also inevitably subjected to tensile and compressive stress. However, due to the material being overstressed, this quickly leads to the hose becoming fatigued and its elasticity weakening, which impairs the puncture of the pump. In addition, the adjustment of the necessary ones
Größe des Schlauchbogens einigen Aufwand. Ziel der Erfindung ist es, eine Schlauchpumpe der eingangs erwähnten Art vorzuschlagen, die eine weitgehende Schonung des Schlauches gewährleistet und bei der mit geringstem Justieraufwand das Auslangen gefunden wird.Size of the hose bend some effort. The aim of the invention is to propose a peristaltic pump of the type mentioned at the outset, which ensures extensive protection of the tube and in which it is found that it can be achieved with the least adjustment effort.
Erfindungsgemäß wird dies dadurch erreicht, daß in an sich bekannter Weise ein den Schlauch gegen mindestens eine Rolle drückender Gegendruckkörper vorgesehen ist und daß der Gegendruckkörper in Bezug auf den Zentralteil in dessen radialer Richtung verschiebbar auf einer Grundplatte gehalten und mittels mindestens einer Eeder in Richtung zum Zentralteil zu vorgespannt ist.According to the invention this is achieved in that a back pressure body pressing the hose against at least one roller is provided in a manner known per se and in that the back pressure body is held displaceably in relation to the central part in its radial direction on a base plate and by means of at least one Eeder in the direction of the central part is too biased.
Eine Schlauchpumpe mit Gegendruckkörper zur Abstützung des Schlauches wurde zwar schon durch die DE-OS 1,553.005 vorgeschlagen, doch ist dabei der Gegendruckkörper starr an der Grundplatte befestigt. Dadurch ergeben sich aber bei einem Austausch des Schlauches, z. B. aufgrund des unvermeidlichen Verschleißes, häufig aufgrund der tolerierten Maßabweichungen der Schläuche häufig Schwierigkeiten, so daß eine langwierige Justierung erforderlich wird. Außerdem weist diese vorbekannte Pumpe keinen drehbar auf dem Zentralteil gelagerten Träger für die Rollen, sondern eine in die Grundplatte eingearbeitete zylindrische Eührungsbahn für die Rollen auf.A peristaltic pump with a counter pressure body for supporting the hose has already been proposed by DE-OS 1,553,005, but the counter pressure body is rigidly attached to the base plate. This results in an exchange of the hose, for. B. due to the inevitable wear, often due to the tolerated dimensional deviations of the hoses often difficulties, so that a lengthy adjustment is required. In addition, this known pump does not have a support for the rollers, which is rotatably mounted on the central part, but a cylindrical guide track for the rollers, which is incorporated into the base plate.
Durch die erfindungsgemäßen Maßnahmen wird dagegen erreicht, daß beim Austausch eines Schlauches lediglich ein neuer Schlauch in den Gegendruckkörper eingelegt zu werden braucht und bereits durch die Vorspannung des Gegendruckkörpers mittels der Federn eine genügende Quetschung durch die Rollen sichergestellt ist, um die Funktionstüchtigkeit der Pumpe zu gewährleisten. Außerdem werden Toleranzen in der Anordnung und den Schläuchen selbst durch den federnden Gegendruckkörper ausgeglichen.By means of the measures according to the invention, on the other hand, it is achieved that when a hose is exchanged, only a new hose needs to be inserted into the counterpressure body and sufficient pre-tensioning by the rollers is already ensured by the prestressing of the counterpressure body by means of the springs, in order to ensure the functionality of the pump . In addition, tolerances in the arrangement and the hoses themselves are compensated for by the resilient counter pressure body.
Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß die Eeder(n) an einer in eine Gewindebohrung des Gegendruckkörpers eingesetzte Schraube abgestützt ist bzw. sind. Auf diese Weise ist eine einfache Regelung der Vorspannung und damit des Anpreßdruckes der Rollen an die Schläuche möglich, durch welche eine exakte Anpassung der Pumpencharakteristik an die geforderten Werte er reichbar ist.According to a further feature of the invention it is provided that the Eeder (s) is supported on a screw inserted into a threaded bore of the counter pressure body or are. In this way, a simple control of the pretension and thus the contact pressure of the rollers against the hoses is possible, by means of which an exact adaptation of the pump characteristics to the required values can be achieved.
Um, falls erforderlich, den bzw. die Schläuche rasch austauschen zu können, ist nach einem weiteren Merkmal der Erfindung vorgesehen, daß an dem Gegendruckkörper eine Nocke drehbar gehalten ist, deren Drehachse von der Drehachse des Zentralteiles einen größeren Abstand aufweist als ein auf der Grundplatte ortsfest gehaltener Anschlag, an dem die Nocke in ihrer Sperrstellung zur An lage bringbar ist,um den Gegendruckkörper in einer von dem Zentralteil entfernten Lage gegen die Kraft der Eeder(n) zu halten. Dadurch ist es auf einfache Weise durch Umstellen der Nocke möglich, den Gegendruckkörper gegen seine Vorspannung in einer vom Zentralteil entfern ten Lage zu halten, wodurch der bzw. die Schläuche leicht zugänglich werden und bequem ausgetauscht werden können. Nach erfolgtem Austausch braucht die Nocke lediglich wieder in ihre Normallage zurückgestellt zu werden und die Pedern drücken den Gegendruckkörper wieder gegen den Zentralkörper, so daß die Pumpe wieder einsatzbereit ist.In order, if necessary, to be able to quickly replace the hose or hoses, a further feature of the invention provides that a cam is rotatably held on the counter-pressure body, the axis of rotation of which is at a greater distance from the axis of rotation of the central part than one on the base plate Stationarily held stop on which the cam can be brought to its position in its locked position in order to hold the counter pressure body in a position remote from the central part against the force of the eder (s). This makes it possible in a simple manner by moving the cam to hold the counter pressure body against its bias in a position distant from the central part, as a result of which the hose or hoses are easily accessible and can be easily replaced. After the replacement, the cam only needs to be returned to its normal position and the peders press the counterpressure body against the central body again, so that the pump is ready for use again.
Eine besonders bevorzugte Ausführungsform einer solchen Pumpe zeichnet sich dadurch aus, daß die Nocke mit einem Handgriff verbunden ist, der im wesentlichen senkrecht zur Längsachse der Nocke steht und sich in seiner Arbeitslage, in der die Nocke vom Anschlag abgehoben ist, vorzugsweise bis zur Welle des Zentralkörpers erstreckt. Damit wird ein besonders hoher Bedienungskomfort erreicht. So braucht zum Austauschen eines Schlauches lediglich der Handgriff hochgeklappt zu werden und schon ist der Schlauch bequem zugänglich, wogegen der Handgriff in seiner Arbeitslage den Schlauch abdeckt und damit schützt.A particularly preferred embodiment of such a pump is characterized in that the cam is connected to a handle which is substantially perpendicular to the longitudinal axis of the cam and in its working position in which the cam is lifted from the stop, preferably up to the shaft of the Central body extends. A particularly high level of operating convenience is thus achieved. To replace a hose, the handle only has to be folded up and the hose is easily accessible, whereas the handle in its working position covers the hose and thus protects it.
Die Erfindung wird nun anhand der Zeichnung näher erläutert. Dabei zeigt Figur 1 einen teilweisen Schnitt durch eine erfindungsgemäße Schlauchpumpe,The invention will now be explained in more detail with reference to the drawing. It shows FIG. 1 shows a partial section through a hose pump according to the invention,
Figur 2 eine Draufsicht auf die Pumpe gemäß Figur 1,FIG. 2 shows a top view of the pump according to FIG. 1,
Figur 3 einen Schnitt durch die Abstützung des Gegen druckkörpers,FIG. 3 shows a section through the support of the counter pressure body,
Figur 4 eine Draufsicht auf eine gegenüber den Piguren 1 bis 3 geringfügig abgewandelte Ausführungsform einer Pumpe undFigure 4 is a plan view of an embodiment of a pump slightly modified compared to pigments 1 to 3
Figur 5 eine vereinfachte Schnittdarstellung gemäß der Linie V-V in Figur 4, bei welcher der Zentralteil samt Träger und Rollen weggelassen sind.Figure 5 is a simplified sectional view along the line V-V in Figure 4, in which the central part including the carrier and rollers are omitted.
Die Welle 1 ist über einen nicht dargestellten Motor an treibbar und über den Stift 2 drehfest mit einem Zentraalteil 3 verbunden. Dieser Zentralteil 3 weist zwei umlaufende Rillen auf, in denen elastisch verformbare Gummiringe 4, z. B. handelsübliche O-Ringe, gehalten sind. Diese Gummiringe 4 liegen auch an den Rollen 5 an und treiben somit diese bei umlaufendem Zentralteil 3 nach Art eines Planetengetriebes reibungsschlüssig an.The shaft 1 is driven by a motor, not shown, and is connected in a rotationally fixed manner to a central part 3 via the pin 2. This central part 3 has two circumferential grooves in which elastically deformable rubber rings 4, z. B. commercially available O-rings are held. These rubber rings 4 also rest against the rollers 5 and thus drive them with a rotating central part 3 in the manner of a planetary gear in a frictional manner.
Wie aus Pigur 1 ersichtlich, sind die Achsstummel der Rollen 5 mit relativ großem Spiel in den beiden den Träger 6 bildenden Scheiben 7 gelagert. Die Halterung der Achsstummel der Rollen 5 erfolgt mittels Benzingscheiben 8 und Beilagscheiben 9. Die Scheiben 7 sind an dem Zentralteil 3 gelagert und gegenüber diesem verdrehbar.As can be seen from Pigur 1, the stub axles of the rollers 5 are mounted with a relatively large amount of play in the two discs 7 forming the carrier 6. The stub axles of the rollers 5 are held by means of gasoline disks 8 and washers 9. The disks 7 are mounted on the central part 3 and can be rotated relative to the latter.
Die Schläuche 10 liegen an einem Gegendruckkörper 11 an und werden durch die Rollen 5 gequetscht, wodurch das zwischen zwei Quetschstellen eingeschlossene Volumen in den Seh läuchen 10 während des Abrollens der Rollen 5 an den Schläuchen weitergefördert wird.The tubes 10 rest against a counter pressure body 11 and are squeezed by the rollers 5, whereby the volume enclosed between two pinch points in the tubes 10 is further conveyed to the tubes during the rolling of the rollers 5.
Wie aus Pigur 2 und 3 ersichtlich, ist der Gegendruck körper 11 mittels zweier abgesetzter und mit einem Gewinde 13 versehener Bolzen 12, welche zwei parallel zueinander liegende Schlitze 14 der Grundplatte 15 durchsetzen, in Richtung zur Achse des Zentralteils 3 verschi eb bar in der Grundplatte 15 gehalten. Die Bolzen 12 sind mittels der Muttern 16 feststellbar und sind mit Zapfen 17 versehen, welche Federn 18 führen, die sich an in den Gegendruclckörper 11 eingeschraubten und Bohrungen 19 abschließenuen Madenschrauben 20 abstützen. Dadurch ist es möglich, den Spalt zwischen der Hüllbahn der Rollen 5 und dem Gegendruckkörper 11 federnd an den Durchmesser der Schläuche 10 anzupassen, wobei durch die federnde Ab stützung des Gegendruckkörpers 11 sowie dessen sich ver breiternden Ein- und Auslauf Druckstöße in den Schläu chen 10 zu Beginn und zum Ende der Quetschung derAs can be seen from Pigur 2 and 3, the back pressure is body 11 by means of two stepped and provided with a thread 13 bolts 12 which pass through two parallel slots 14 of the base plate 15, in the direction of the axis of the central part 3 slidably held in the base plate 15. The bolts 12 can be locked by means of the nuts 16 and are provided with pins 17 which guide springs 18 which are supported on grub screws 20 which are screwed into the counter-pressure body 11 and close bores 19. This makes it possible to adjust the gap between the envelope of the rollers 5 and the counter-pressure body 11 resiliently to the diameter of the hoses 10, with the resilient support from the counter-pressure body 11 and its widening inlet and outlet pressure surges in the hose 10th at the beginning and end of the bruising
Schläuche vermieden werden. Außerdem ist durch die federn de Abstützung auch ein Ausgleich von bei Herstellung und Montage unvermeidlichen Toleranzen gegeben, und durch die Führung des Gegendruckkörpers 11 in zwei parallelen als Führungen dienenden Schlitzen 14 sichergestellt, daß der Spalt zwischen der Hüllbahn der Rollen 5 und dem Gegendrückkörper 11 auch bei Änderung der Spaltbreite in Abhängigkeit von dem Durchmesser der Schläuche 10 in einem relativ großen Bereich über den Quetschbereich der Rollen 5 im wesentlichen gleich bleibt.Hoses can be avoided. In addition, the springs de support also compensate for inevitable tolerances during manufacture and assembly, and by guiding the counter-pressure element 11 in two parallel slots 14 serving as guides ensures that the gap between the envelope of the rollers 5 and the counter-pressure element 11 also when changing the gap width depending on the diameter of the tubes 10 in a relatively large area over the pinch area of the rollers 5 remains substantially the same.
Wird die Welle 1 angetrieben, so werden die Rollen 5 über die Gummiringe 4 ebenfalls in Drehung versetzt und die an den Schläuchen 10 anliegenden Rollen 5 wälzen sich auf den Schläuchen 10 ab, wodurch sich die Rollen und damit auch die Scheiben 7 weiterbewegen und so die Quetsch zonen der Schläuche weiterwandern, wobei das vor einer Quetschstelle bzw. zwischen zwei Quetschstellen der Schläuche 10 in diesen eingeschlossene Volumen weitergefördert wird.If the shaft 1 is driven, the rollers 5 are also rotated via the rubber rings 4 and the rollers 5 lying against the tubes 10 roll on the tubes 10, as a result of which the rollers and thus also the discs 7 move on and so on Squeeze zones of the hoses continue to move, which is conveyed in front of a pinch point or between two pinch points of the tubes 10 in this enclosed volume.
Die Schläuche 10 sind an Nippel 21 angeschlossen, die in einem Montageblock 22 gehalten sind, wobei an den zweiten Enden der Nippel 21 Anschlußschläuche aufsteckbar sind. Die Ausführungsform gemäß den Figuren 4 und 5 unterscheidet sich von der zuvor beschriebenen lediglich dadurch, daß der mittlere Teil des Gegendruckkörpers 11' an seiner vom Zentralteil 3 abgekehrten Seite eine Ausspannung 27 aufweist und in den seitlichen Randabschnitten des Gegendruckkörpers 11' eine durchgehende Achse 24 gehalten ist. Auf dieser Achse ist eine Nocke 25 drehbar gelagert, die mit dem Handgriff 26 verbunden ist, wobei diese beiden Teile ein "L" bilden.The hoses 10 are connected to nipples 21, which are held in an assembly block 22, 21 connecting hoses being attachable to the second ends of the nipples. The embodiment according to FIGS. 4 and 5 differs from the one described above only in that the central part of the counter-pressure body 11 'has an opening 27 on its side facing away from the central part 3 and a continuous axis 24 is held in the lateral edge sections of the counter-pressure body 11' is. On this axis a cam 25 is rotatably mounted, which is connected to the handle 26, these two parts forming an "L".
Diese Nocke 25 ist durch Hochklappen des Handgriffs 26, der sich in seiner Arbeitslage senkrecht zur Welle 1 erstreckt, zur Anlage an einen in die Ausspannung 27 hineinragenden, mit der Grundplatte 15 fest verbundenen Anschlag 23 bringbar. Da das freie Ende des Nockens mehr als seine halbe Breite über die Achse 24 vorragt, die vom Zentralteil 3 einen größeren radialen Abstand als der Anschlag 23 aufweist, wird durch dieses Hochklappen des Handgriffs 26 der Gegendruckkörper 11 von dem Zentralteil 3 gegen die Kraft der Federn 18 weggezogen. Dabei kommt es wegen der ebenen Stirnseite des Nockens 25 zu einer Art Verriegelung des Gegendruckkörpers 11 und des Handgriffs 26 in der vom Zentralteil 3 entfernten bzw. hochgeklappten Lage, wodurch die Schläuche 10 einfach und bequem getauscht werden können. This cam 25 can be brought to rest against a stop 23 protruding into the recess 27 and firmly connected to the base plate 15 by folding up the handle 26, which extends perpendicular to the shaft 1 in its working position. Since the free end of the cam protrudes more than half its width over the axis 24, which is at a greater radial distance from the central part 3 than the stop 23, this pushing up of the handle 26 causes the counterpressure body 11 from the central part 3 against the force of the springs 18 moved away. Because of the flat end face of the cam 25, there is a kind of locking of the counterpressure body 11 and of the handle 26 in the position removed or folded up from the central part 3, as a result of which the hoses 10 can be exchanged simply and conveniently.

Claims

Patentansprüche: Claims:
1. Schlauchpumpe mit mehreren über ein Plänetengetriebe von einem Zentralteil antreibbaren Rollen, die dabei auf zumindest einem Schlauch, der das zu fördernde Medium führt unter Quetschung von dessen freiem Quer schnitt abrollen und die in seinem drehbar gelagerten Träger drehbar gehalten sind, wobei die Rollen vorzugs weise mit größerem Spiel im Träger gelagert sind und mit zumindest einem Teil ihres Umfanges, zumindest während des Anliegens an dem Schlauch mit dem Zentral teil in reibungsschlüssigem Kontakt stehen, d a d u r c h g e k e n n z e i c h n e t , daß in an sich bekannter Weise ein den Schlauch (10) gegen mindestens eine Rolle (5) drückender Gegendruckkörper (11) vorgesehen ist und daß der Gegen druckkörper (11) in Bezug auf den Zentralteil (3) in dessen radialer Richtung verschiebbar auf einer Grundplatte (15) gehalten und mittels mindestens einer Feder (18) in Richtung zum Zentralteil (3) zu vorgespannt ist.1. Peristaltic pump with several rollers driven by a planetary gear from a central part, which roll on at least one tube that guides the medium to be conveyed while squeezing its free cross section and which are rotatably held in its rotatably mounted carrier, the rollers being preferred are stored with greater play in the carrier and with at least a part of their circumference, at least while in contact with the hose with the central part in frictional contact, characterized in that the hose (10) against at least one roller in a manner known per se (5) pressing counter pressure body (11) is provided and that the counter pressure body (11) in relation to the central part (3) in its radial direction slidably on a base plate (15) and by means of at least one spring (18) towards the central part (3) is too biased.
2. Schlauchpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Feder(n) (18) an einer in eine Gewindebohrung2. Peristaltic pump according to claim 1, characterized in that the spring (s) (18) on one in a threaded bore
(19) des Gegendruckkörpers (11) eingesetzte Schraube(19) of the counter pressure body (11) inserted screw
(20) abgestützt ist bzw. sind.(20) is or are supported.
3. Schlauchpumpe nach Anspruch 1 oder 2, dadurch gekenn zeichnet, daß an dem Gegendruckkörper (11) eine Nocke (25) drehbar gehalten ist, deren Drehachse (24) von der Drehachse des Zentralteiles (3) einen größeren Abstand aufweist als ein auf der Grundplatte (15) ortsfest gehaltener Anschlag (23), an dem die Nocke in ihrer SperrStellung zur Anlage bringbar ist, um den Gegendruckkörper (11) in einer von dem Zentral teil (3) entfernten Lage gegen die Kraft der Feder(n) (18) zu halten. 3. Peristaltic pump according to claim 1 or 2, characterized in that on the counter-pressure body (11) a cam (25) is rotatably held, the axis of rotation (24) of the axis of rotation of the central part (3) has a greater distance than one on the Base plate (15) stationary stop (23), against which the cam can be brought into abutment in its locked position, around the counter pressure body (11) in a position away from the central part (3) against the force of the spring (s) (18 ) to keep.
4. Schlauchpumpe nach Anspruch 3, dadurch gekennzeichnet, daß die Nocke (25) mit einem Handgriff (26) verbunden ist, der im wesentlichen senkrecht zur Längsachse der Nocke (25) steht und sich in seiner Arbeitslage, in der die Nocke (25) vom Anschlag (23) abgehoben ist, vorzugsweise bis zur Welle (1) des Zentralkörpers (3) erstreckt. 4. Hose pump according to claim 3, characterized in that the cam (25) is connected to a handle (26) which is substantially perpendicular to the longitudinal axis of the cam (25) and in its working position in which the cam (25) is lifted off the stop (23), preferably extends to the shaft (1) of the central body (3).
PCT/AT1981/000019 1980-08-01 1981-07-30 Peristaltic pump WO1982000498A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0401080A AT367874B (en) 1980-08-01 1980-08-01 HOSE PUMP
AT4010/80800801 1980-08-01

Publications (1)

Publication Number Publication Date
WO1982000498A1 true WO1982000498A1 (en) 1982-02-18

Family

ID=3558425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1981/000019 WO1982000498A1 (en) 1980-08-01 1981-07-30 Peristaltic pump

Country Status (4)

Country Link
AT (1) AT367874B (en)
DE (1) DE3152233D2 (en)
GB (1) GB2094410A (en)
WO (1) WO1982000498A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514080A1 (en) * 1981-10-06 1983-04-08 Elmar Medical Systems Ltd PERISTALTIC PUMP WITH MOBILE STATOR
EP0164020A1 (en) * 1984-05-25 1985-12-11 ISCO, Inc. Peristaltic pump

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673334A (en) * 1984-05-25 1987-06-16 Isco, Inc. Peristaltic pump
US4886431A (en) * 1988-04-29 1989-12-12 Cole-Parmer Instrument Company Peristaltic pump having independently adjustable cartridges
US5082429A (en) * 1990-08-28 1992-01-21 Cole-Parmer Instrument Company Peristaltic pump
DE9412228U1 (en) * 1994-07-28 1994-09-22 Loctite Europa E.E.I.G. (E.W.I.V.), 85748 Garching Peristaltic pump for precise dosing of small amounts of liquid
DE102010000591B4 (en) * 2010-03-01 2012-04-05 Ulrich Gmbh & Co. Kg peristaltic pump
DE202010000278U1 (en) 2010-03-01 2011-07-29 Ulrich Gmbh & Co. Kg peristaltic pump
DE102010000592B3 (en) 2010-03-01 2011-06-16 Ulrich Gmbh & Co. Kg Peristaltic pump with planetary gear
DE202010000279U1 (en) 2010-03-01 2011-07-29 Ulrich Gmbh & Co. Kg Peristaltic pump with planetary gear
DE202022000984U1 (en) 2022-04-23 2022-08-12 Pas Deutschland Gmbh Double peristaltic pump with free outlet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421629A (en) * 1934-01-15 1934-12-27 Manoel Cordeiro Santiago Improvements in pumps of the flexible tube type
FR2056841A5 (en) * 1969-08-15 1971-05-14 Air Shields
FR2338709A1 (en) * 1976-01-26 1977-08-19 Baxter Travenol Lab METHOD AND DEVICE FOR PRACTICE DOSE INJECTIONS OF FLUID INTO THE HUMAN BODY
US4256442A (en) * 1979-04-18 1981-03-17 Baxter Travenol Laboratories, Inc. Improved pressure plate movement system for a peristaltic pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421629A (en) * 1934-01-15 1934-12-27 Manoel Cordeiro Santiago Improvements in pumps of the flexible tube type
FR2056841A5 (en) * 1969-08-15 1971-05-14 Air Shields
FR2338709A1 (en) * 1976-01-26 1977-08-19 Baxter Travenol Lab METHOD AND DEVICE FOR PRACTICE DOSE INJECTIONS OF FLUID INTO THE HUMAN BODY
US4256442A (en) * 1979-04-18 1981-03-17 Baxter Travenol Laboratories, Inc. Improved pressure plate movement system for a peristaltic pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514080A1 (en) * 1981-10-06 1983-04-08 Elmar Medical Systems Ltd PERISTALTIC PUMP WITH MOBILE STATOR
EP0164020A1 (en) * 1984-05-25 1985-12-11 ISCO, Inc. Peristaltic pump

Also Published As

Publication number Publication date
ATA401080A (en) 1981-12-15
GB2094410A (en) 1982-09-15
DE3152233D2 (en) 1982-10-07
AT367874B (en) 1982-08-10

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