EP0638721A1 - Feed pump - Google Patents

Feed pump Download PDF

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Publication number
EP0638721A1
EP0638721A1 EP94110050A EP94110050A EP0638721A1 EP 0638721 A1 EP0638721 A1 EP 0638721A1 EP 94110050 A EP94110050 A EP 94110050A EP 94110050 A EP94110050 A EP 94110050A EP 0638721 A1 EP0638721 A1 EP 0638721A1
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EP
European Patent Office
Prior art keywords
riser
feed pump
cylinder
pump according
outlet
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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
EP94110050A
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German (de)
French (fr)
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EP0638721B1 (en
Inventor
Peter Dipl.-Ing. Langguth
Ewald Kille
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J Wagner GmbH
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J Wagner GmbH
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Publication of EP0638721A1 publication Critical patent/EP0638721A1/en
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    • 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
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/047—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being pin-and-slot mechanisms
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
    • F04B23/023—Pumping installations or systems having reservoirs the pump being immersed in the reservoir only the pump-part being immersed, the driving-part being outside the reservoir

Definitions

  • the invention relates to a feed pump, in particular for paints and similar media, consisting of an insertable in a reservoir, provided with an inlet valve and an outlet valve and a cylinder arranged therein by a motor such.
  • a feed pump in particular for paints and similar media, consisting of an insertable in a reservoir, provided with an inlet valve and an outlet valve and a cylinder arranged therein by a motor such.
  • B. via an eccentric lever or crank drive driven pump piston, the conveyed medium via a riser pipe connected to the valve housing receiving an outlet pipe can be fed.
  • the Japanese utility model Sho-61-200182 discloses a feed pump of this type, by means of which the medium to be processed can be fed to a paint roller from a storage container.
  • the riser pipe is formed by connecting pieces formed on the valve housing of the outlet valve and the outlet pipe and an intermediate piece placed thereon. Apart from the fact that both the connections between the nozzle attached to the valve housing and the intermediate piece and also between this and the nozzle provided on the outlet line are to be sealed to compensate for a lateral offset of the connecting pieces which are not aligned with one another by the intermediate piece.
  • the object of the invention is therefore to design a feed pump of the type mentioned at the outset in such a way that it can be used for differently high storage containers for their complete emptying without the delivery capacity being impaired.
  • the adaptation to the respective height of the storage container should be able to be carried out in a very simple manner and in a short time, but nevertheless a secure locking of the individual components and thus a reliable function of the feed pump should be ensured and this should be easy to dismantle in order to its components without difficulty to clean and / or replace wear parts if necessary.
  • the construction effort should be kept low, and the feed pump should also be able to be manufactured in an economical manner.
  • this is achieved in a feed pump of the aforementioned type in that, in order to change the length of the riser, it is formed from two or more mutually adjustable sections which can be locked at different altitudes, or in that the riser consists of two nests which can be plugged into one another and locked together Sections exist, of which at least one is optionally of different lengths.
  • the adjusting lever should be provided on the side opposite the latching lug with an angled molded grip.
  • the connecting piece forming the riser rotatably, for. B. by means of a protruding from the cylinder and in a machined in the outer surface of the attached to the outlet pipe longitudinal groove engaging web
  • the piston rod assigned to the pump piston should be connectable to the drive member of the engine at different altitudes or alternatively be replaceable by a piston rod compensating for the change in length of the riser.
  • outlet pipe, the riser pipe and the cylinder firmly connected to the housing of the outlet valve and the pump piston used in these by means of a cover, a plate or the like provided on the outlet pipe.
  • B. by means of a federal government to hold the reservoir, and to provide the lid or plate with a guide piece for the piston rod connected to the pump piston.
  • a filter can be removed from the cylinder in the direction of escape of the pump piston, preferably by means of a bayonet catch, and the outlet line with molded cover, the components of the riser pipe and the cylinder with molded valve housing can be made of an impact-resistant plastic.
  • a feed pump is designed according to the invention in which the riser assigned to it is adjustable in length, it is possible to adapt the feed pump to storage containers of different heights and to suck in the liquid to be conveyed in each case in the base region of the storage container without impairing the pumping behavior of the pump becomes.
  • the length of the riser By changing the length of the riser, the distance between the feed pump and the outlet line can be changed without difficulty, the feed pump can thus be easily inserted into storage containers of different heights.
  • the riser consists of only two components and that the resulting annular gap in the connecting piece forming the riser is easy to seal.
  • the nozzles are through the on the valve housing of the exhaust valve or the control lever attached to the outlet pipe is locked in a reliable manner, but this connection can be released easily and in a short time in order to lengthen or shorten the riser pipe.
  • the feed pump is therefore easy to dismantle, so that its components can be cleaned easily and / or wear parts can be easily replaced. A high level of operational reliability and versatility are therefore always given.
  • the feed device shown in FIGS. 1 and 2 and designated 1 serves to supply a hand tool, for example an internally fed paint roller or a brush, with the medium to be processed and essentially consists of a storage container 2 designed as a lower part for receiving the medium and one with the reservoir 2 detachably connected upper part 3, in which a handle opening 4 is formed for transporting the power supply 1.
  • the medium is fed to an outlet line 20 by means of a feed pump 11, to which a line leading to the hand tool (not shown) can be connected.
  • the feed pump 11 has a cylinder 12, in the cylinder space 13 of which a pump piston 14 is inserted, and an inlet valve 18 and an outlet valve 19.
  • the inlet valve 18 is inserted directly into the correspondingly designed cylinder 12, the outlet valve 19, however, in a valve housing 17 attached to the cylinder 12, which is connected to the outlet line 20 via a riser pipe 21.
  • an electric motor 41 is provided, which can be switched on and off by means of a switch 5 mounted in the upper part 3 and is supported in partition walls 6 and 6 ′ of the upper part 3.
  • the electric motor 41 is drivingly connected to a piston rod 15 of the pump piston 14 via gear wheels 42 and 43 and an eccentric lever 44.
  • the riser 21, 21 ' is designed to be variable in length.
  • connecting pieces 22 and 23 or 22 'and 23' are attached to the valve housing 17 and the outlet line 20, which are adjustably arranged one inside the other and can be locked at different heights.
  • An adjusting lever 25 or 25 ' is used for this purpose, which is formed on the valve housing 17 according to FIG. 3 and on the outlet line 20 according to FIG.
  • the actuating lever 25 or 25 ' which is pretensioned against the socket 23 or the socket 22', has a latching lug 26 which optionally engages in notches 28, 28 'or 28' 'incorporated in the socket 23 or socket 22' can.
  • the adjusting lever 25 or 25 ' is equipped with a handle 27 in order to be able to push it off and thus to release the locking mechanism.
  • a web 29 is formed on the cylinder 12, which engages in a longitudinal groove 30 machined into the connecting piece 23, in the embodiment variant according to FIG 4, on the other hand, a web 29 'is attached to the nozzle 23' and is guided in a longitudinal groove 30 'of the nozzle 22'.
  • the piston rod 15 is provided with three suspension eyes 16, 16' and 16 '' for the eccentric lever 44, which are spaced apart from one another are arranged, which correspond to the distances of the notches 28, 28 'and 28' '.
  • the position of the pump piston 14 can also be adapted to the respective length of the riser 21.
  • the feed pump 11 is interchangeably inserted in the reservoir 2 in the embodiment shown.
  • it is provided with an opening 7 and a plate-like cover 31 is formed on the outlet line 20 and has a circumferential collar 32 which engages in the opening 7.
  • a guide piece 33 for the piston rod 15 of the pump piston 14 is attached to the cover 31.
  • the distance between the filter 45 to be arranged in the bottom area of a storage container 2 and the outlet line 20 and thus the length of the riser 21 '' can also be changed, as shown in the feed pump 11 '' according to FIG. 5, in that at least one of the connecting pieces 22 ′′ and 23 ′′ forming these and the possibly associated components can be dimensioned optionally of different lengths.
  • This possibility of changing the length of the riser 21 ′′ is illustrated by the dividing lines drawn in.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

In a conveying pump having a cylinder introducible into a reservoir and having a pump piston, whereby the conveyed medium is supplied via an ascending line to a discharge line, an ascending line formed of two sections adjustable relative to one another is provided. The ascending line can be locked at different heights to vary the length of the ascending line so that the conveying pump can be used for reservoirs of different heights without deteriorating the conveying capacity of the pump. This adaptation can be performed easily and quickly. In addition, the conveying pump can be taken apart and easily cleaned, and component parts can be easily replaced.

Description

Die Erfindung bezieht sich auf eine Förderpumpe, insbesondere für Farben und ähnliche Medien, bestehend aus einem in einen Vorratsbehälter einsetzbaren, mit einem Einlaßventil und einem Auslaßventil versehenen Zylinder und einem in diesen angeordneten durch einen Motor z. B. über einen Exzenterhebel oder Kurbeltrieb antreibbaren Pumpkolben, wobei das geförderte Medium über eine an das das Auslaßventil aufnehmende Ventilgehäuse angeschlossenen Steigleitung einer Austrittsleitung zuführbar ist.The invention relates to a feed pump, in particular for paints and similar media, consisting of an insertable in a reservoir, provided with an inlet valve and an outlet valve and a cylinder arranged therein by a motor such. B. via an eccentric lever or crank drive driven pump piston, the conveyed medium via a riser pipe connected to the valve housing receiving an outlet pipe can be fed.

Durch das japanische Gebrauchsmuster Sho-61-200182 ist eine Förderpumpe dieser Art, mittels der aus einem Vorratsbehälter das zu verarbeitende Medium einem Farbroller zuführbar ist, bekannt. Die Steigleitung ist hierbei durch an dem Ventilgehäuse des Auslaßventils sowie der Austrittsleitung angeformte Stutzen und einem auf diese aufgesetzten Zwischenstück gebildet. Abgesehen davon, daß sowohl die Verbindungen zwischen dem an dem Ventilgehäuse angebrachten Stutzen und dem Zwischenstück als auch zwischen diesem und dem an der Austrittsleitung vorgesehene Stutzen abzudichten sind, ist durch das Zwischenstück ein seitlicher Versatz der nicht zueinander fluchtend angeordneten Stutzen auszugleichen. Die geringfügigen Strömungsumlenkungen des geförderten Mediums sind zwar unerheblich, von Nachteil ist vielmehr, daß die aus drei fest miteinander verbundenen Bauteilen bestehende Saugleitung in ihrer Länge nicht auf einfache Weise verändert werden kann, die bekannte Förderpumpe ist somit jeweils nur für eine vorgegebene Bauhöhe eines Vorratsbehälters und demnach nicht wahlweise für unterschiedliche Geräte verwendbar.The Japanese utility model Sho-61-200182 discloses a feed pump of this type, by means of which the medium to be processed can be fed to a paint roller from a storage container. The riser pipe is formed by connecting pieces formed on the valve housing of the outlet valve and the outlet pipe and an intermediate piece placed thereon. Apart from the fact that both the connections between the nozzle attached to the valve housing and the intermediate piece and also between this and the nozzle provided on the outlet line are to be sealed to compensate for a lateral offset of the connecting pieces which are not aligned with one another by the intermediate piece. The slight flow deflections of the pumped medium are insignificant, but the disadvantage is that the length of the suction line consisting of three firmly connected components cannot be changed in a simple manner, the known feed pump is therefore only for a given overall height of a storage container and therefore not usable for different devices.

Aufgabe der Erfindung ist es daher, eine Förderpumpe der eingangs genannten Gattung in der Weise zu gestalten, daß diese, ohne daß deren Förderleistung beeinträchtigt wird, für unterschiedlich hohe Vorratsbehälter zu deren vollständiger Entleerung eingesetzt werden kann. Die Anpassung an die jeweilige Höhe des Vorratsbehälters soll auf sehr einfache Weise und in kurzer Zeit vorgenommen werden können, dennoch soll eine stets sichere Arretierung der einzelnen Bauteile und somit eine zuverlässige Funktion der Förderpumpe gewährleistet und diese soll leicht zerlegbar sein, um ohne Schwierigkeiten deren Bauteile reinigen und/oder gegebenenfalls Verschleißteile austauschen zu können. Des weiteren soll der Bauaufwand gering gehalten werden, auch soll die Förderpumpe auf wirtschaftliche Weise herzustellen sein.The object of the invention is therefore to design a feed pump of the type mentioned at the outset in such a way that it can be used for differently high storage containers for their complete emptying without the delivery capacity being impaired. The adaptation to the respective height of the storage container should be able to be carried out in a very simple manner and in a short time, but nevertheless a secure locking of the individual components and thus a reliable function of the feed pump should be ensured and this should be easy to dismantle in order to its components without difficulty to clean and / or replace wear parts if necessary. Furthermore, the construction effort should be kept low, and the feed pump should also be able to be manufactured in an economical manner.

Gemäß der Erfindung wird dies bei einer Förderpumpe der vorgenannten Art dadurch erreicht, daß zur Veränderung der Länge der Steigleitung diese aus zwei oder mehreren gegeneinander verstellbaren Abschnitten gebildet ist, die in unterschiedlichen Höhenlagen arretierbar sind, oder daß die Steigleitung aus zwei ineinander steckbaren und miteinander verrastbaren Abschnitten besteht, von denen mindestens einer wahlweise unterschiedlich lang bemessen ist.According to the invention, this is achieved in a feed pump of the aforementioned type in that, in order to change the length of the riser, it is formed from two or more mutually adjustable sections which can be locked at different altitudes, or in that the riser consists of two nests which can be plugged into one another and locked together Sections exist, of which at least one is optionally of different lengths.

Zweckmäßig ist es hierbei, die Abschnitte der Steigleitung durch zueinander fluchtend angeordnete und ineinander steckbare Stutzen zu bilden, die an dem Ventilgehäuse des Auslaßventils und der Austrittsleitung angebracht sind.It is expedient in this case to form the sections of the riser pipe by means of connecting pieces which are arranged in alignment and can be plugged into one another and which are attached to the valve housing of the outlet valve and the outlet pipe.

Zur Arretierung der Stutzen ist es vorteilhaft, an dem Ventilgehäuse des Auslaßventils oder an der Austrittsleitung einen in Richtung der Steigleitung sich erstreckenden elastisch verformbaren Stellhebel anzubringen, der auf der den Stutzen zugekehrten Seite mit einer Rastnase versehen ist, die jeweils in eine der in unterschiedlichen Höhen in die Außenmantelfläche eines der Stutzen eingearbeiteten Einkerbungen eingreift, wobei der Stellhebel auf der der Rastnase gegenüberliegenden Seite mit einem abgewinkelt angeformten Griffstück versehen sein sollte.To lock the nozzle, it is advantageous to attach to the valve housing of the outlet valve or on the outlet line an elastically deformable adjusting lever extending in the direction of the riser, which is provided on the side facing the nozzle with a locking lug, each in one of different heights engages in the outer circumferential surface of one of the sockets, the adjusting lever should be provided on the side opposite the latching lug with an angled molded grip.

Des weiteren ist es angezeigt, die die Steigleitung bildenden Stutzen drehfest, z. B. mittels eines von dem Zylinder abstehenden und in eine in die Außenmantelfläche des an der Austrittsleitung angebrachten Stutzens eingearbeiteten Längsnut eingreifenden Steges verschiebbar ineinander zu führenFurthermore, it is indicated that the connecting piece forming the riser rotatably, for. B. by means of a protruding from the cylinder and in a machined in the outer surface of the attached to the outlet pipe longitudinal groove engaging web

Um den Totraum des Zylinders nicht zu vergrößern, sollte ferner zum Ausgleich einer Längenveränderung der Steigleitung die dem Pumpkolben zugeordnete Kolbenstange in unterschiedlichen Höhenlagen an das Antriebsglied des Motors anschließbar oder durch eine die Längenveränderung der Steigleitung ausgleichende Kolbenstange wahlweise ersetzbar sein.In order not to increase the dead space of the cylinder, in order to compensate for a change in length of the riser, the piston rod assigned to the pump piston should be connectable to the drive member of the engine at different altitudes or alternatively be replaceable by a piston rod compensating for the change in length of the riser.

Angebracht ist es auch, die Austrittsleitung, die Steigleitung sowie den mit dem Gehäuse des Auslaßventils fest verbundenen Zylinder und den in diesen eingesetzten Pumpkolben mittels eines an der Austrittsleitung vorgesehenen Deckels, einer Platte oder dgl. auswechselbar, z. B. mittels eines Bundes, an dem Vorratsbehälter zu halten, und den Deckel oder die Platte mit einem Führungsstück für die mit dem Pumpkolben verbundene Kolbenstange zu versehen.It is also appropriate, the outlet pipe, the riser pipe and the cylinder firmly connected to the housing of the outlet valve and the pump piston used in these by means of a cover, a plate or the like provided on the outlet pipe. B. by means of a federal government to hold the reservoir, and to provide the lid or plate with a guide piece for the piston rod connected to the pump piston.

Des weiteren kann an dem Zylinder in Fluchtrichtung des Pumpkolbens ein Filter abnehmbar, vorzugsweise mittels eines Bajonettverschlusses, angebracht und die Austrittsleitung mit angeformtem Deckel, die Bauteile der Steigleitung sowie der Zylinder mit angeformtem Ventilgehäuse können aus einem schlagfesten Kunststoff hergestellt sein.Furthermore, a filter can be removed from the cylinder in the direction of escape of the pump piston, preferably by means of a bayonet catch, and the outlet line with molded cover, the components of the riser pipe and the cylinder with molded valve housing can be made of an impact-resistant plastic.

Wird eine Förderpumpe gemäß der Erfindung ausgebildet, in dem die dieser zugeordnete Steigleitung längenveränderbar gestaltet wird, so ist es möglich, die Förderpumpe an unterschiedlich hoch bemessene Vorratsbehälter anzupassen und die zu fördernde Flüssigkeit jeweils im Bodenbereich des Vorratsbehälters einzusaugen, ohne daß das Förderverhalten der Pumpe beeinträchtigt wird. Durch eine Längenänderung der Steigleitung kann vielmehr der Abstand der Förderpumpe zu der Austrittsleitung ohne Schwierigkeiten verändert werden, die Förderpumpe kann somit leicht in in der Höhe unterschiedliche Vorratsbehälter eingesetzt werden.If a feed pump is designed according to the invention in which the riser assigned to it is adjustable in length, it is possible to adapt the feed pump to storage containers of different heights and to suck in the liquid to be conveyed in each case in the base region of the storage container without impairing the pumping behavior of the pump becomes. By changing the length of the riser, the distance between the feed pump and the outlet line can be changed without difficulty, the feed pump can thus be easily inserted into storage containers of different heights.

Des weiteren ist von Vorteil, daß die Steigleitung nur aus zwei Bauteilen besteht und daß der sich zwischen diesen ergebende Ringspalt in den die Steigleitung bildenden Stutzen problemlos abzudichten ist. Auch sind die Stutzen durch den an dem Ventilgehäuse des Auslaßventils oder der Austrittsleitung angebrachten Stellhebel betriebssicher arretiert, dennoch ist diese Verbindung leicht und in kurzer Zeit zu lösen, um die Steigleitung zu verlängern oder zu verkürzen. Die Förderpumpe ist demnach leicht zerlegbar, so daß deren Bauteile problemlos zu reinigen sind und/oder evtl. Verschleißteile leicht ausgetauscht werden können. Eine hohe Betriebssicherheit sowie eine vielseitige Verwendbarkeit sind demnach stets gegeben.Another advantage is that the riser consists of only two components and that the resulting annular gap in the connecting piece forming the riser is easy to seal. The nozzles are through the on the valve housing of the exhaust valve or the control lever attached to the outlet pipe is locked in a reliable manner, but this connection can be released easily and in a short time in order to lengthen or shorten the riser pipe. The feed pump is therefore easy to dismantle, so that its components can be cleaned easily and / or wear parts can be easily replaced. A high level of operational reliability and versatility are therefore always given.

In der Zeichnung ist ein Ausführungsbeispiel der gemäß der Erfindung ausgbildeten Förderpumpe mit Ausführungsvarianten dargestellt, das nachfolgend im einzelnen erläutert ist. Hierbei zeigt:

Figur 1
die in einem Speisegerät eingesetzte Förderpumpe, in Vorderansicht und teilweise im Schnitt,
Figur 2
das Speisegerät nach Figur 2 in einem achssenkrechten Schnitt nach der Linie II - II der Figur 1,
Figur 3
die Förderpumpe des Speisegerätes nach Figur 1 mit den zugeordneten Bauteilen in einem axialen Schnitt und in einer vergrößerten Darstellung,
Figur 4
die Förderpumpe nach Figur 1 mit einer andersartigen Anordnung des zur Arretierung der die Steigleitung bildenden Stutzen vorgesehenen Stellhebels, und
Figur 5
die Förderpumpe nach Figur 3 mit wahlweise unterschiedlich lang zu bemessenden Stutzen zur Längenveränderung der Steigleitung.
In the drawing, an embodiment of the feed pump designed according to the invention is shown with variants, which is explained in detail below. Here shows:
Figure 1
the feed pump used in a feed device, in front view and partly in section,
Figure 2
2 in an axial section along the line II-II of FIG. 1,
Figure 3
1 with the associated components in an axial section and in an enlarged view,
Figure 4
the feed pump of Figure 1 with a different arrangement of the provided for locking the riser forming the connecting lever, and
Figure 5
the feed pump according to Figure 3 with optionally different lengths to be dimensioned for changing the length of the riser.

Das in den Figuren 1 und 2 dargestellte und mit 1 bezeichnete Speisegerät dient zur Versorgung eines Handwerkzeuges, beispielsweise eines innengespeisten Farbrollers oder eines Pinsels, mit dem zu verarbeitenden Medium und besteht im wesentlichen aus einem als Unterteil ausgebildeten Vorratsbehälter 2 zur Aufnahme des Mediums sowie einem mit dem Vorratsbehälter 2 lösbar verbundenen Oberteil 3, in das eine Grifföffnung 4 zum Transport des Speisegerätes 1 eingeformt ist. Mittels einer Förderpumpe 11 wird das Medium einer Austrittsleitung 20 zugeführt, an die eine zu dem nicht gezeigten Handwerkzeug führende Leitung anschließbar ist.The feed device shown in FIGS. 1 and 2 and designated 1 serves to supply a hand tool, for example an internally fed paint roller or a brush, with the medium to be processed and essentially consists of a storage container 2 designed as a lower part for receiving the medium and one with the reservoir 2 detachably connected upper part 3, in which a handle opening 4 is formed for transporting the power supply 1. The medium is fed to an outlet line 20 by means of a feed pump 11, to which a line leading to the hand tool (not shown) can be connected.

Die Förderpumpe 11 weist, wie dies insbesondere den Figuren 3 und 4 zu entnehmen ist, einen Zylinder 12, in dessen Zylinderraum 13 ein Pumpkolben 14 eingesetzt ist, sowie ein Einlaßventil 18 und ein Auslaßventil 19 auf. Das Einlaßventil 18 ist unmittelbar in den entsprechend gestalteten Zylinder 12 eingesetzt, das Auslaßventil 19 dagegen in einem an den Zylinder 12 angebrachten Ventilgehäuse 17, das über eine Steigleitung 21 mit der Austrittsleitung 20 verbunden ist. Zum Antrieb des Pumpkolbens 14 ist ein Elektromotor 41 vorgesehen, der mittels eines in dem Oberteil 3 angebrachten Schalters 5 ein- und ausschaltbar und in Zwischenwänden 6 und 6' des Oberteils 3 abgestützt ist. Über Zahnräder 42 und 43 sowie einen Exzenterhebel 44 ist der Elektromotor 41 trieblich mit einer Kolbenstange 15 des Pumpkolbens 14 verbunden.The feed pump 11, as can be seen in particular from FIGS. 3 and 4, has a cylinder 12, in the cylinder space 13 of which a pump piston 14 is inserted, and an inlet valve 18 and an outlet valve 19. The inlet valve 18 is inserted directly into the correspondingly designed cylinder 12, the outlet valve 19, however, in a valve housing 17 attached to the cylinder 12, which is connected to the outlet line 20 via a riser pipe 21. To drive the pump piston 14, an electric motor 41 is provided, which can be switched on and off by means of a switch 5 mounted in the upper part 3 and is supported in partition walls 6 and 6 ′ of the upper part 3. The electric motor 41 is drivingly connected to a piston rod 15 of the pump piston 14 via gear wheels 42 and 43 and an eccentric lever 44.

Durch Hubbewegungen des Pumpkolbens 14 - die Rotationsbewegung des Elektromotors 41 wird mittels des Exzenterhebels 44 in eine Axialbewegung der Kolbenstange 15 umgewandelt - wird das zu verarbeitende Medium über einen Filter 45, der mit Hilfe eines Bajonettverschlusses 46 an dem Zylinder 12 befestigt ist, bei geöffnetem Einlaßventil 18 und geschlossenem Auslaßventil 19 in den Zylinderraum 13 eingesaugt und bei geschlossenem Einlaßventil 18 und sich öffnendem Auslaßventil 19 aus diesem zur Austrittsleitung 20, die eine in das Oberteil 3 eingearbeitete Öffnung 8 durchgreift, gefördert.Through stroke movements of the pump piston 14 - the rotational movement of the electric motor 41 is converted into an axial movement of the piston rod 15 by means of the eccentric lever 44 - the medium to be processed is transferred via a Filter 45, which is fastened to the cylinder 12 with the aid of a bayonet catch 46, is sucked into the cylinder space 13 when the inlet valve 18 is open and the outlet valve 19 is closed, and from this to the outlet line 20 when the inlet valve 18 is closed and the outlet valve 19 is opening 3 worked through opening 8, promoted.

Um die Förderpumpe 11 an in der Höhe unterschiedlich groß bemessene Vorratsbehälter, die in den Figuren 1 und 2 strichpunktiert eingezeichnet sind, anpassen zu können, ist die Steigleitung 21, 21' längenveränderbar gestaltet. Um dies auf einfache Weise, aber dennoch betriebssicher zu bewerkstelligen, sind an dem Ventilgehäuse 17 sowie der Austrittsleitung 20 jeweils Stutzen 22 und 23 bzw. 22' und 23' angebracht, die verstellbar ineinander angeordnet und in unterschiedlichen Höhenlagen arretierbar sind. Dazu dient ein Stellhebel 25 bzw. 25', der gemäß Figur 3 an dem Ventilgehäuse 17, gemäß Figur 4 an der Austrittsleitung 20 angeformt ist. Der unter Vorspannung an dem Stutzen 23 bzw. dem Stutzen 22' anliegende Stellhebel 25 bzw. 25' weist eine Rastnase 26 auf, die in in den Stutzen 23 bzw. den Stutzen 22' eingearbeitete Einkerbungen 28, 28' oder 28'' wahlweise eingreifen kann. Außerdem ist der Stellhebel 25 bzw. 25' mit einem Griffstück 27 ausgestattet, um diesen abdrücken und somit die Arretierung lösen zu können.In order to be able to adapt the feed pump 11 to storage containers of different sizes, which are shown in dash-dotted lines in FIGS. 1 and 2, the riser 21, 21 'is designed to be variable in length. In order to accomplish this in a simple but reliable manner, connecting pieces 22 and 23 or 22 'and 23' are attached to the valve housing 17 and the outlet line 20, which are adjustably arranged one inside the other and can be locked at different heights. An adjusting lever 25 or 25 'is used for this purpose, which is formed on the valve housing 17 according to FIG. 3 and on the outlet line 20 according to FIG. The actuating lever 25 or 25 ', which is pretensioned against the socket 23 or the socket 22', has a latching lug 26 which optionally engages in notches 28, 28 'or 28' 'incorporated in the socket 23 or socket 22' can. In addition, the adjusting lever 25 or 25 'is equipped with a handle 27 in order to be able to push it off and thus to release the locking mechanism.

Zur Längenänderung der Steigleitung 21 bzw. 21' ist demnach lediglich der Stellhebel 25 bzw. 25' derart zu verformen, daß dessen Rastnase 26 nicht mehr in die Einkerbung 28' eingreift, die beiden Stutzen 22, 23 bzw. 22', 23' können sodann gegeneinander verstellt werden. Durch Einrasten der Rastnase 26 in die Einkerbung 28 oder 28'' werden die Stutzen 22, 23 bzw. 22', 23', zwischen denen eine Dichtung 24 zur Abdichtung des sich ergebenden Ringspaltes eingesetzt ist, wiederum arretiert.To change the length of the riser 21 or 21 ', only the adjusting lever 25 or 25' is to be deformed in such a way that its catch 26 no longer engages in the notch 28 ', the two connecting pieces 22, 23 and 22', 23 'can then be adjusted against each other. By latching the locking lug 26 into the notch 28 or 28 '' the nozzles 22, 23 and 22 ', 23', between which a seal 24 is inserted for sealing the resulting annular gap, are in turn locked.

Damit die Stutzen 22, 23 bzw. 22', 23' verdrehfest geführt sind, ist bei der Ausgestaltung nach Figur 3 an dem Zylinder 12 ein Steg 29 angeformt, der in eine in den Stutzen 23 eingearbeitete Längsnut 30 eingreift, bei der Ausführungsvariante nach Figur 4 ist dagegen an dem Stutzen 23' ein Steg 29' angebracht, der in einer Längsnut 30' des Stutzens 22' geführt ist.In order for the connecting pieces 22, 23 or 22 ', 23' to be guided such that they cannot rotate, in the embodiment according to FIG. 3 a web 29 is formed on the cylinder 12, which engages in a longitudinal groove 30 machined into the connecting piece 23, in the embodiment variant according to FIG 4, on the other hand, a web 29 'is attached to the nozzle 23' and is guided in a longitudinal groove 30 'of the nozzle 22'.

Damit der dem Pumpkolben 14 zugeordnete Zylinderraum 13 des Zylinders 12 auch bei einer Längenänderung der Steigleitung 21 bzw. 21' gleich bleibt, ist die Kolbenstange 15 mit drei Einhängeösen 16, 16' und 16'' für den Exzenterhebel 44 versehen, die in Abständen zueinander angeordnet sind, die den Abständen der Einkerbungen 28, 28' und 28'' entsprechen. Auf diese Weise wird nicht nur die Rotationsbewegung des Exzenterhebels 44 in die linearen Hubbewegungen der Kolbenstange 15 umgewandelt, sondern es kann auch die Lage des Pumpkolbens 14 der jeweiligen Länge der Steigleitung 21 angepaßt werden.So that the cylinder chamber 13 of the cylinder 12 assigned to the pump piston 14 remains the same even when the riser 21 or 21 'changes in length, the piston rod 15 is provided with three suspension eyes 16, 16' and 16 '' for the eccentric lever 44, which are spaced apart from one another are arranged, which correspond to the distances of the notches 28, 28 'and 28' '. In this way, not only is the rotational movement of the eccentric lever 44 converted into the linear stroke movements of the piston rod 15, but the position of the pump piston 14 can also be adapted to the respective length of the riser 21.

Die Förderpumpe 11 ist bei dem gezeigten Ausführungsbeispiel auswechselbar in den Vorratsbehälter 2 eingesetzt. Dazu ist dieser mit einer Öffnung 7 versehen und an der Austrittsleitung 20 ist ein plattenartiger Deckel 31 angeformt, der einen umlaufenden in die Öffnung 7 eingreifenden Bund 32 aufweist. Außerdem ist an dem Deckel 31 ein Führungsstück 33 für die Kolbenstange 15 des Pumpkolbens 14 angebracht. Bei herausgenommener Förderpumpe 11, deren Bauteile wirtschaftlich aus einem schlagfesten Kunststoff hergestellt sein können, kann somit das zu verarbeitende Medium problemlos in den Vorratsbehälter 2 eingefüllt werden.The feed pump 11 is interchangeably inserted in the reservoir 2 in the embodiment shown. For this purpose, it is provided with an opening 7 and a plate-like cover 31 is formed on the outlet line 20 and has a circumferential collar 32 which engages in the opening 7. In addition, a guide piece 33 for the piston rod 15 of the pump piston 14 is attached to the cover 31. With the feed pump 11 removed, the components of which can be economically manufactured from an impact-resistant plastic, the medium to be processed can thus be filled into the storage container 2 without any problems.

Der Abstand zwischen dem jeweils im Bodenbereich eines Vorratsbehälters 2 anzuordnenden Filter 45 und der Austrittsleitung 20 und damit die Länge der Steigleitung 21'' kann aber auch, wie dies bei der Förderpumpe 11'' nach Figur 5 gezeigt ist, dadurch verändert werden, daß zumindest einer der diese bildenden Stutzen 22'' und 23'' sowie die evtl. zugehörigen Bauteile wahlweise unterschiedlich lang bemessen werden. Durch die eingezeichneten Trennungslinien ist diese Möglichkeit der Längenveränderung der Steigleitung 21'' verdeutlicht.The distance between the filter 45 to be arranged in the bottom area of a storage container 2 and the outlet line 20 and thus the length of the riser 21 '' can also be changed, as shown in the feed pump 11 '' according to FIG. 5, in that at least one of the connecting pieces 22 ″ and 23 ″ forming these and the possibly associated components can be dimensioned optionally of different lengths. This possibility of changing the length of the riser 21 ″ is illustrated by the dividing lines drawn in.

Claims (10)

Förderpumpe (11), insbesondere für Farben und ähnliche Medien, bestehend aus einem in einen Vorratsbehälter (2) einsetzbaren, mit einem Einlaßventil (18) und einem Auslaßventil (19) versehenen Zylinder (12) und einem in diesen angeordneten durch einen Motor (41) z. B. über einen Exzenterhebel (44) oder Kurbeltrieb antreibbaren Pumpkolben (14), wobei das geförderte Medium über eine an das das Auslaßventil (19) aufnehmende Ventilgehäuse (17) angeschlossenen Steigleitung (21) einer Austrittsleitung (20) zuführbar ist,
dadurch gekennzeichnet,
daß zur Veränderung der Länge der Steigleitung (21,21') diese aus zwei oder mehreren gegeneinander verstellbaren Abschnitten (Stutzen 22, 23 bzw. 22', 23') gebildet ist, die in unterschiedlichen Höhenlagen arretierbar sind, oder daß die Steigleitung (21'') aus zwei ineinander steckbaren und miteinander verrastbaren Abschnitten (Stutzen 22'', 23'') besteht, von denen mindestens einer wahlweise unterschiedlich lang bemessen ist.Feed pump (11), in particular for paints and similar media, consisting of a cylinder (12) that can be inserted into a storage container (2), has an inlet valve (18) and an outlet valve (19), and a cylinder (12) arranged therein by a motor (41 ) z. B. via an eccentric lever (44) or crank drive driven pump piston (14), the conveyed medium via a to the outlet valve (19) receiving valve housing (17) connected riser pipe (21) an outlet pipe (20) can be fed,
characterized,
that to change the length of the riser (21, 21 ') it is formed from two or more mutually adjustable sections (connecting pieces 22, 23 or 22', 23 ') which can be locked at different heights, or that the riser (21 '') consists of two sections which can be plugged into one another and locked together (connecting pieces 22 '', 23 ''), at least one of which is optionally of different lengths. Förderpumpe nach Anspruch 1,
dadurch gekennzeichnet,
daß die Abschnitte der Steigleitung (21, 21') durch zueinander fluchtend angeordnete und ineinander steckbare Stutzen (22, 23 bzw. 22', 23') gebildet sind, die an dem Ventilgehäuse (17) des Auslaßventils (19) und der Austrittsleitung (20) angebracht sind.Feed pump according to claim 1,
characterized,
that the sections of the riser (21, 21 ') are formed by mutually aligned and pluggable sockets (22, 23 or 22', 23 ') which are connected to the valve housing (17) of the outlet valve (19) and the outlet line ( 20) are attached. Förderpumpe nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß zur Arretierung der Stutzen (22, 23 bzw. 22', 23') an dem Ventilgehäuse (17) des Auslaßventils (19) oder an der Austrittsleitung (20) ein in Richtung der Steigleitung (21, 21') sich erstreckender elastisch verformbarer Stellhebel (25, 25') angebracht ist, der auf der den Stutzen (23 bzw. 22') zugekehrten Seite mit einer Rastnase (26) versehen ist, die jeweils in eine der in unterschiedlichen Höhen in die Außenmantelfläche eines der Stutzen (23 bzw. 22') eingearbeiteten Einkerbungen (28, 28', 28'') eingreift.Feed pump according to claim 1 or 2,
characterized,
that for locking the connecting piece (22, 23 or 22 ', 23') on the valve housing (17) of the outlet valve (19) or on the outlet line (20) an elastically deformable extending in the direction of the riser (21, 21 ') Adjusting lever (25, 25 ') is attached, which is provided on the side facing the connecting piece (23 or 22') with a locking lug (26), each in one of the different heights in the outer surface of one of the connecting pieces (23 or . 22 ') machined notches (28, 28', 28 ''). Förderpumpe nach Anspruch 3,
dadurch gekennzeichnet,
daß der Stellhebel (25, 25') auf der der Rastnase (26) gegenüberliegenden Seite mit einem abgewinkelt angeformten Griffstück (27) versehen ist.Feed pump according to claim 3,
characterized,
that the adjusting lever (25, 25 ') is provided on the side opposite the latching lug (26) with an angled-on handle (27). Förderpumpe nach einem oder mehreren der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die die Steigleitung (21, 21') bildenden Stutzen (22, 23 bzw. 22', 23') drehfest, z. B. mittels eines von dem Zylinder (12) abstehenden und in eine in die Außenmantelfläche (20) des an der Austrittsleitung angebrachten Stutzens (23) eingearbeiteten Längsnut (30) eingreifenden Steges (29), verschiebbar ineinander geführt sind.Feed pump according to one or more of claims 1 to 4,
characterized,
that the riser (21, 21 ') forming nozzle (22, 23 or 22', 23 ') rotatably, for. B. by means of a protruding from the cylinder (12) and in a in the outer circumferential surface (20) of the nozzle attached to the outlet pipe (23) incorporated longitudinal groove (30) engaging web (29) are slidably guided. Förderpumpe nach einem oder mehreren der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß zum Ausgleich einer Längenveränderung der Steigleitung (21, 21') die dem Pumpkolben (14) zugeordnete Kolbenstange (15) in unterschiedlichen Höhenlagen (Einhängeösen 16, 16', 16'') an das Antriebsglied (Exzenterhebel 44) des Motors (41) anschließbar oder durch eine die Längenveränderung der Steigleitung (21, 21') ausgleichende Kolbenstange wahlweise ersetzbar ist.Feed pump according to one or more of claims 1 to 5,
characterized,
that to compensate for a change in length of the riser (21, 21 ') the piston rod (15) assigned to the pump piston (14) at different heights (suspension eyes 16, 16', 16 '') to the drive member (eccentric lever 44) of the motor (41) can be connected or optionally replaced by a piston rod compensating for the change in length of the riser (21, 21 '). Förderpumpe nach einem oder mehreren der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß die Austrittsleitung (20), die Steigleitung (21) sowie der mit dem Ventilgehäuse (17) des Auslaßventils (19) fest verbundene Zylinder (12) und der in diesen eingesetzte Pumpkolben (14) mittels eines an der Austrittsleitung (20) vorgesehenen Deckels (31), einer Platte oder dgl. auswechselbar, z. B. mittels eines Bundes (32), an dem Vorratsbehälter (2) gehalten ist.Feed pump according to one or more of claims 1 to 6,
characterized,
that the outlet pipe (20), the riser pipe (21) and the cylinder (12) firmly connected to the valve housing (17) of the outlet valve (19) and the pump piston (14) inserted therein by means of a cover provided on the outlet pipe (20) (31), a plate or the like. B. is held by means of a federal government (32) on the reservoir (2). Förderpumpe nach Anspruch 7,
dadurch gekennzeichnet,
daß der Deckel (31) oder die Platte mit einem Führungsstück (33) für die mit dem Pumpkolben (14) verbundene Kolbenstange (15) versehen ist.Feed pump according to claim 7,
characterized,
that the cover (31) or the plate is provided with a guide piece (33) for the piston rod (15) connected to the pump piston (14). Förderpumpe nach einem oder mehreren der Ansprüche 1 bis 8,
dadurch gekennzeichnet,
daß an dem Zylinder (12) in Fluchtrichtung des Pumpkoplbens (14) ein Filter (45) abnehmbar, vorzugsweise mittels eines Bajonettverschlusses (46), angebracht ist.Feed pump according to one or more of claims 1 to 8,
characterized,
that a filter (45) is attached to the cylinder (12) in the direction of escape of the pump head (14), preferably by means of a bayonet catch (46). Förderpumpe nach einem oder mehreren der Ansprüche 1 bis 9,
dadurch gekennzeichnet,
daß die Austrittsleitung (20) mit angeformtem Deckel (31), die Bauteile der Steigleitung (21) sowie der Zylinder (12) mit angeformtem Ventilgehäuse (17) aus einem schlagfesten Kunststoff hergestellt sind.Feed pump according to one or more of claims 1 to 9,
characterized,
that the outlet line (20) with molded cover (31), the components of the riser (21) and the cylinder (12) with molded valve housing (17) are made of an impact-resistant plastic.
EP94110050A 1993-07-15 1994-06-29 Feed pump Expired - Lifetime EP0638721B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4323733 1993-07-15
DE4323733A DE4323733C1 (en) 1993-07-15 1993-07-15 Delivery pump

Publications (2)

Publication Number Publication Date
EP0638721A1 true EP0638721A1 (en) 1995-02-15
EP0638721B1 EP0638721B1 (en) 1997-03-05

Family

ID=6492893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110050A Expired - Lifetime EP0638721B1 (en) 1993-07-15 1994-06-29 Feed pump

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US (1) US5591012A (en)
EP (1) EP0638721B1 (en)
JP (1) JPH0791363A (en)
AT (1) ATE149640T1 (en)
CZ (1) CZ159094A3 (en)
DE (2) DE4323733C1 (en)
TW (1) TW233331B (en)

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US5799834A (en) * 1996-10-21 1998-09-01 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
US5853113A (en) * 1996-10-21 1998-12-29 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
US8845222B2 (en) * 2005-10-24 2014-09-30 Wagner Spray Tech Corporation Modular paint pump for a paint roller
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics

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Also Published As

Publication number Publication date
ATE149640T1 (en) 1997-03-15
TW233331B (en) 1994-11-01
JPH0791363A (en) 1995-04-04
US5591012A (en) 1997-01-07
CZ159094A3 (en) 1995-01-18
DE4323733C1 (en) 1994-09-08
EP0638721B1 (en) 1997-03-05
DE59401891D1 (en) 1997-04-10

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