EP3199081B1 - Parallel inlet nozzle - Google Patents
Parallel inlet nozzle Download PDFInfo
- Publication number
- EP3199081B1 EP3199081B1 EP16152661.1A EP16152661A EP3199081B1 EP 3199081 B1 EP3199081 B1 EP 3199081B1 EP 16152661 A EP16152661 A EP 16152661A EP 3199081 B1 EP3199081 B1 EP 3199081B1
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- EP
- European Patent Office
- Prior art keywords
- inlet
- subsection
- section
- suction
- opening
- 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.)
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- 239000012530 fluid Substances 0.000 claims description 55
- 238000007373 indentation Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
Definitions
- the present invention relates to a suction inlet opening for a vacuum cleaner, which is particularly suitable for announcing a fluid and storing it in a storage container, containing at least a first inlet sub-section, a second inlet sub-section and a third inlet sub-section, the first inlet sub-section being connected to the third inlet sub-section by means of the second inlet sub-section is connected that a fluid sucked in by the vacuum cleaner subsequently flows through the first, second and third inlet section to the storage container.
- vacuum cleaner includes all possible devices for sucking in solids and / or a fluid, i.e. in particular liquids with dirt particles contained therein, as well as for storing the solids and / or the fluid or the dirt particles in a corresponding storage container.
- Such vacuum cleaners are usually used on construction sites alone and / or in combination with a machine tool, such as a core drill, a cut-off machine or the like.
- the sucked-in solids or the sucked-in fluid can also be referred to as a medium. With the help of this medium, dirt particles in particular can be sucked in by the vacuum cleaner.
- a vacuum cleaner usually has a hose with which the fluid is conducted from a nozzle or the connected machine tool to the vacuum cleaner.
- the vacuum cleaner also has a suction inlet opening to which one end of the hose is connected to the vacuum cleaner. This suction inlet opening is often arranged on the suction head of the vacuum cleaner.
- the suction head can usually be positioned above the storage container and often contains the majority of the technical components of the vacuum cleaner, such as a turbine for generating a negative pressure, the filter and the like.
- the suction inlet opening consists only of a pipe section through which the sucked fluid flows from the suction head to the storage container below.
- a vacuum cleaner comprising a suction unit which is set up to be placed on a suction head of an open dust container.
- the suction unit can be used to suck in air so that a suction effect occurs in the area of an inlet opening of the dust container.
- a suction inlet opening for a vacuum cleaner which is particularly suitable for delivering a fluid and storing it in a storage container, containing at least a first inlet section, a second inlet section and a third inlet section, the first inlet section by means of the second inlet section the third inlet section is connected so that a fluid sucked in by the vacuum cleaner subsequently flows through the first, second and third inlet section to the storage container.
- a central longitudinal axis of the third inlet section is arranged essentially horizontally, so that the fluid flows essentially horizontally from the third inlet section into the storage container.
- This specific arrangement and configuration of the suction inlet opening enables the sucked-in fluid to flow into the interior of the vacuum cleaner in a particularly advantageous manner. This is ensured in particular because the fluid flows horizontally or horizontally from the Suction inlet opening or the inlet section flows out. Turbulent eddies are thereby reduced or completely prevented.
- the first inlet sub-section and the third inlet sub-section are positioned relative to one another in such a way that a central longitudinal axis of the first inlet sub-section and the central longitudinal axis of the third inlet sub-section are arranged essentially parallel to one another. It is possible that the central longitudinal axis of the first inlet sub-section and the central longitudinal axis of the third inlet sub-section and thus also essentially the first inlet sub-section and the third inlet sub-section are arranged horizontally or horizontally. In this way, a particularly advantageous outflow of the fluid from the suction inlet opening or inflow of the fluid into the interior of the vacuum cleaner can be achieved.
- the first inlet sub-section and the third inlet sub-section are positioned relative to one another in such a way that a central longitudinal axis of the first inlet sub-section and the central longitudinal axis of the third inlet sub-section are arranged essentially at an acute angle to one another.
- a higher flow rate of the fluid in the suction inlet opening can be achieved, which in turn enables an improved flow behavior of the fluid in the suction inlet opening or also out of the suction inlet opening.
- a first curved section between the first inlet section and the second inlet section and between the second inlet section and the third Inlet section a second curved section is provided.
- an inlet opening of the first inlet section is positioned on a suction head device that can be placed on the storage container.
- the suction inlet opening can be conveniently removed from the vacuum cleaner together with the suction head in order to allow the user, for example, direct or unhindered access to the storage container. This is particularly advantageous if the storage container has to be emptied.
- the central longitudinal axis of the third inlet sub-section and a central longitudinal axis of the first inlet sub-section lie in one plane.
- the second inlet section and the third inlet section are so are arranged to each other that the second inlet sub-section and the third inlet sub-section are designed such that with a vertical arrangement of the second inlet sub-section and with a horizontal arrangement of the third inlet sub-section, the cross-sectional area of the second inlet sub-section and the cross-sectional area of the third inlet sub-section with a value of 15% up to 25%, especially 20%, overlap.
- a cylindrical extension section is provided at an outlet opening of the third inlet sub-section, the extension section being arranged essentially horizontally. In this way, a particularly advantageous outflow of the fluid from the suction inlet opening or the third inlet sub-section can be achieved.
- a plate-shaped extension section is provided at an outlet opening of the third inlet section, the extension section being arranged essentially horizontally and at a lower end of the third inlet section.
- a lip can also be provided instead of the plate-shaped extension section. This lip can be made of rubber or another elastic material.
- a further advantageous embodiment of the present invention can provide for an indentation to be provided on an inside of the second curved section.
- the indentation which can be designed in the form of a dent, the Coanda effect occurs in the suction inlet opening between the second and third inlet section, through which the fluid is literally applied to the inside of the second curved section.
- Fig. 1 , 2 and 3 show a vacuum cleaner 1, which essentially consists of a suction head 2 and a storage container 3.
- the suction head 2 includes a first opening 4, a second opening 5, a turbine 6, a filter 7 and a suction inlet opening 8.
- the storage container 3 essentially contains a cavity 9 for receiving and storing a fluid F sucked in by the vacuum cleaner 1.
- the storage container 3 has four side walls 3a, 3b and a base 3c.
- the side walls 3 a, 3 b and the bottom 3 c define the cavity 9 in which the sucked fluid F or dirt particles S which have been used by the fluid F into the interior of the vacuum cleaner 1 can collect.
- Four wheels 10a, 10b, 10c for mobile use of the vacuum cleaner 1 are also attached to the floor 3c.
- the storage container 3 can also have a cylindrical shape.
- the storage container 3 can have more or less than four wheels.
- the turbine 6 is used to generate a negative pressure in the interior of the vacuum cleaner 1 and in particular in the interior of the storage container 3, through which a fluid F can be sucked in.
- the sucked fluid F flows through the filter 7 and exits the suction head 2 again through the second opening 5.
- the suction inlet opening 8 is positioned in the first opening 4 or extends through the first opening 4.
- a suction hose 11 can be connected to the suction inlet opening 8. As in Fig. 1 As shown, one end 11a of a suction hose 11 is connected to the suction inlet opening 8.
- a second end of the suction hose which is not shown in the figures, can be connected to a nozzle (for example a floor nozzle) or to a machine tool. Neither the nozzle nor the machine tool are shown in the figures. If the vacuum cleaner 1 is connected to a machine tool, dust, abrasion or other dirt particles can be removed from the machine tool and brought to the vacuum cleaner 1 by means of the suction hose 11.
- the machine tool can be, for example, a hammer drill, a core drill, a grinding device, a saw or the like.
- the suction inlet opening 8 essentially contains a first inlet section 12, a second inlet section 13 and a third inlet section 14.
- the first, second and third inlet section 12, 13, 14 is essentially designed as a cylindrical tube through which a fluid F sucked in by the vacuum cleaner 1 can flow.
- the first inlet section 12 contains an inlet opening 12a which is attached to the suction head 2 and in particular to the first opening 4. As a result, the entire suction inlet opening 8 can be removed from the storage container 3 together with the suction head 2.
- the first inlet section 12 is connected to the third inlet section 14 via the second inlet section 13.
- a first curved section 15 is positioned between the first inlet section 12 and the second inlet section 13.
- a second curved section 16 is positioned between the second inlet sub-section 13 and the third inlet sub-section 14.
- the first and second curved section 15, 16 can also be referred to as a curve, arch or the like.
- a curved transition from the first inlet sub-section 12 to the second inlet sub-section 13 and from the second inlet sub-section 13 to the third inlet sub-section 14 is important for an optimal flow behavior of the sucked-in fluid F.
- the degree of curvature at the transitions between the respective inlet sub-sections 12, 13, 14 and the diameter of the inlet sub-sections 12, 13, 14 and also of the curved sections 15, 16 should be selected so that at least half the media flow of the sucked-in fluid F can be captured and deflected.
- the first inlet section 12 and also the third inlet section 14 are designed to be essentially horizontal or horizontal.
- the first inlet section 12 and the third inlet section 14 are arranged essentially parallel to one another.
- Horizontal or horizontal means that a central longitudinal axis M of the first inlet section 12 and a central longitudinal axis R of the third inlet section 14 are essentially parallel to a central longitudinal axis N of the vacuum cleaner 1 or parallel to the bottom 3c of the storage container 3 (cf. Fig. 3 ).
- Optimal essentially means a horizontally or horizontally oriented flow.
- the turbine 6 generates a negative pressure inside, which ensures that a fluid F is sucked from the surroundings of the vacuum cleaner 1 through the first opening 4 into the interior of the vacuum cleaner 1.
- the fluid F can be a gas and / or a liquid. Together with the fluid F, solids, such as dirt particles, are sucked in and conveyed into the interior of the vacuum cleaner 1.
- the fluid F which is also referred to as the medium, flows through the first inlet section 12 via the first curved section 15 into the second inlet section 13 and via the second curved section 16 into the third inlet section 14, the fluid F passes through the outlet opening 14a of the third Inlet section 14 into the storage container 3.
- the fluid F flows over the filter 7 and out of the vacuum cleaner 1 again through the second opening 5. Dirt particles that were sucked in together with the fluid F acting as a medium are collected in the storage container 3 (cf. Fig. 3 ).
- Fig. 5 shows a second embodiment of the suction inlet opening 8 according to the invention, in which the first inlet section 12 is arranged at an angle in contrast to the first embodiment.
- Inclined means that the central longitudinal axis M of the first inlet sub-section 12 runs at an acute angle to the central longitudinal axis R of the third inlet sub-section 14. Due to the inclined first inlet section 12, a higher flow rate and thus a better flow rate of the inflowing fluid F can be generated.
- Fig. 6 shows a third embodiment of the suction inlet opening 8 according to the invention, in which, in contrast to the first embodiment, a cylindrical extension section 17 is provided at the outlet opening 14a of the third inlet sub-section 14, the extension section 17 being arranged essentially horizontally. A better, ie horizontally or horizontally oriented, flow from the suction inlet opening 8 can be generated by the cylindrical extension section 17.
- Fig. 7 shows a fourth embodiment of the suction inlet opening 8 according to the invention, in which, in contrast to the first embodiment, a plate-shaped extension section 18 is provided at the outlet opening 14a of the third inlet section 14, the extension section 18 being arranged essentially horizontally and at a lower end 14b of the third inlet section 14 is.
- the plate-shaped extension section 18 is essentially horizontal and is arranged at a lower end 14b of the third inlet sub-section 14. A better, ie horizontally or horizontally directed flow from the suction inlet opening 8 can be generated by the plate-shaped extension section 18.
- Fig. 8 shows a fifth embodiment of the suction inlet opening 8 according to the invention, in which, in contrast to the first embodiment, an indentation 20 is provided on an inner side 19 of the second curved section 16.
- the indentation 20 can be designed in the form of a dent.
- the indentation 20 creates a pronounced Curve guide generated between the second and third inlet section 13, 14, which ensures on the sucked fluid F by means of the Coanda effect that the fluid F literally rests on the inside of the second curved section. This further improves the flow behavior of the fluid F that is sucked in.
- FIG. 8 shows a view along the section line A - A in FIG Fig. 4 , wherein the interior of the second inlet sub-section 13 is viewed in the flow direction of the sucked-in fluid F.
- the area A denotes the entire cross-sectional area of the second inlet sub-section 13.
- FIG. 8 shows a view according to section line B - B in FIG Fig. 4 , whereby the interior of the third inlet section 14 is viewed against the direction of flow of the sucked-in fluid F.
- the area B denotes the cross-sectional area of the third inlet section 14.
- the cross-sectional area A of the second inlet sub-section 13 overlaps with the cross-sectional area B of the third inlet sub-section 14 at most to a value between 15% and 25%.
- the two cross-sectional areas A, B differ by a maximum of 20%. This also further improves the flow behavior of the fluid F that is sucked in.
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- Nozzles For Electric Vacuum Cleaners (AREA)
Description
Die vorliegende Erfindung betrifft eine Saugeinlassöffnung für einen Staubsauger, der insbesondere geeignet ist ein Fluid anzusagen und in einem Aufbewahrungsbehälter zu speichern, enthaltend wenigstens ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt sowie eine dritten Einlassteilabschnitt, wobei der erste Einlassteilabschnitt mittels des zweiten Einlassteilabschnitt so mit dem dritten Einlassteilabschnitt verbunden ist, dass ein vom dem Staubsauger angesaugtes Fluid nachfolgend durch den ersten, zweiten und dritten Einlassteilabschnitt zu dem Aufbewahrungsbehälter strömt.The present invention relates to a suction inlet opening for a vacuum cleaner, which is particularly suitable for announcing a fluid and storing it in a storage container, containing at least a first inlet sub-section, a second inlet sub-section and a third inlet sub-section, the first inlet sub-section being connected to the third inlet sub-section by means of the second inlet sub-section is connected that a fluid sucked in by the vacuum cleaner subsequently flows through the first, second and third inlet section to the storage container.
Der Begriff "Staubsauger" umfasst hierbei alle möglichen Vorrichtungen zum Ansaugen von Feststoffen und/oder eines Fluids, d.h. insbesondere Flüssigkeiten mit darin enthaltenden Schmutzpartikeln, sowie zum Speichern der Feststoffe und/oder des Fluids bzw. der Schmutzpartikel in einem entsprechenden Aufbewahrungsbehälter. Derartige Staubsauger sind üblicherweise an Baustellen alleine für sich und/oder in Kombination mit einer Werkzeugmaschine, wie z.B. einer Kernbohrmaschine, einem Trennschleifern oder dergleichen, im Einsatz. Die angesaugten Feststoffe bzw. das angesaugte Fluid kann auch als Medium bezeichnet werden. Mit Hilfe dieses Mediums können insbesondere Schmutzpartikel von dem Staubsauger angesaugt werden.The term "vacuum cleaner" includes all possible devices for sucking in solids and / or a fluid, i.e. in particular liquids with dirt particles contained therein, as well as for storing the solids and / or the fluid or the dirt particles in a corresponding storage container. Such vacuum cleaners are usually used on construction sites alone and / or in combination with a machine tool, such as a core drill, a cut-off machine or the like. The sucked-in solids or the sucked-in fluid can also be referred to as a medium. With the help of this medium, dirt particles in particular can be sucked in by the vacuum cleaner.
Ein Staubsauger verfügt üblicherweise über einen Schlauch, mit dem das Fluid von einer Düse oder der angeschlossenen Werkzeugmaschine zu dem Staubsauger geleitet wird. Der Staubsauger verfügt des Weiteren über eine Saugeinlassöffnung, an die ein Ende des Schlauchs mit dem Staubsauger verbunden wird. Diese Saugeinlassöffnung ist dabei häufig an dem Saugkopf des Staubsaugers angeordnet. Der Saugkopf ist für gewöhnlich oberhalb des Aufbewahrungsbehälters positionierbar und enthält oftmals den Großteil der technischen Komponenten des Staubsaugers, wie z.B. eine Turbine zum Erzeugen eines Unterdrucks, den Filter und dergleichen.A vacuum cleaner usually has a hose with which the fluid is conducted from a nozzle or the connected machine tool to the vacuum cleaner. The vacuum cleaner also has a suction inlet opening to which one end of the hose is connected to the vacuum cleaner. This suction inlet opening is often arranged on the suction head of the vacuum cleaner. The suction head can usually be positioned above the storage container and often contains the majority of the technical components of the vacuum cleaner, such as a turbine for generating a negative pressure, the filter and the like.
Gemäß dem Stand der Technik besteht die Saugeinlassöffnung lediglich aus einem Rohrabschnitt, durch den das angesaugte Fluid von dem Saugkopf zu dem darunter liegenden Aufbewahrungsbehälter strömt.According to the prior art, the suction inlet opening consists only of a pipe section through which the sucked fluid flows from the suction head to the storage container below.
Nachteilig an diesen Saugeinlassöffnungen gemäß dem Stand der Technik ist jedoch, dass keine optimale Anströmung bzw. Einleiten des angesaugten Fluids erzeugt werden kann. Sowohl im Inneren der Saugeinlassöffnung als auch direkt hinter der Saugeinlassöffnung, d.h. im Inneren des Staubsaugers, kommt es hierdurch oftmals zu einer turbulenten Strömung des Fluids, die sich einerseits negativ auf die Saugleistung auswirkt und andererseits zu einer unerwünschten Verteilung der Schmutzpartikeln im Aufbewahrungsbehälter führt. Dies kann wiederum zu unerwünschten Ablagerungen an den Seitenwänden des Aufbewahrungsbehälters führen.The disadvantage of these suction inlet openings according to the prior art, however, is that an optimal flow or introduction of the sucked-in fluid cannot be generated. Both inside the suction inlet opening and directly behind the suction inlet opening, i.e. inside the vacuum cleaner, this often leads to a turbulent flow of the fluid, which on the one hand has a negative effect on the suction performance and on the other hand leads to an undesirable distribution of dirt particles in the storage container. This in turn can lead to undesirable deposits on the side walls of the storage container.
Beispielsweise offenbart
Es ist daher Aufgabe der vorliegenden Erfindung, eine verbesserte Saugeinlassöffnung für einen Staubsauger bereitzustellen, durch welche die vorstehend genannten Probleme gelöst werden.It is therefore the object of the present invention to provide an improved suction inlet opening for a vacuum cleaner, by means of which the above-mentioned problems are solved.
Die vorstehend genannte Aufgabe wird durch den erfindungsgemäßen Gegenstand des unabhängigen Anspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen der vorliegenden Erfindung sind in dem abhängigen Anspruch beschrieben.The above-mentioned object is achieved by the subject matter of
Die vorstehend genannte Aufgabe wird gelöst durch eine Saugeinlassöffnung für einen Staubsauger, der insbesondere geeignet ist ein Fluid anzusagen und in einem Aufbewahrungsbehälter zu speichern, enthaltend wenigstens ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt sowie eine dritten Einlassteilabschnitt, wobei der erste Einlassteilabschnitt mittels des zweiten Einlassteilabschnitt so mit dem dritten Einlassteilabschnitt verbunden ist, dass ein vom dem Staubsauger angesaugtes Fluid nachfolgend durch den ersten, zweiten und dritten Einlassteilabschnitt zu dem Aufbewahrungsbehälter strömt.The above-mentioned object is achieved by a suction inlet opening for a vacuum cleaner, which is particularly suitable for delivering a fluid and storing it in a storage container, containing at least a first inlet section, a second inlet section and a third inlet section, the first inlet section by means of the second inlet section the third inlet section is connected so that a fluid sucked in by the vacuum cleaner subsequently flows through the first, second and third inlet section to the storage container.
Erfindungsgemäß ist dabei eine Mittelängsachse des dritten Einlassteilabschnitts im Wesentlichen waagegerecht angeordnet, sodass das Fluid im Wesentlichen waagerecht aus dem dritten Einlassteilabschnitt in den Aufbewahrungsbehälter strömt. Durch diese spezifische Anordnung und Ausgestaltung der Saugeinlassöffnung kann ein besonders vorteilhaftes Einströmen des angesaugten Fluids in den Innenraum des Staubsaugers erreicht werden. Dies wird insbesondere dadurch gewährleistet, da das Fluid waagerecht bzw. horizontal aus der Saugeinlassöffnung bzw. dem Einlassteilabschnitt ausströmt. Turbulente Verwirbelungen werden hierdurch verringert bzw. vollständig verhindert.According to the invention, a central longitudinal axis of the third inlet section is arranged essentially horizontally, so that the fluid flows essentially horizontally from the third inlet section into the storage container. This specific arrangement and configuration of the suction inlet opening enables the sucked-in fluid to flow into the interior of the vacuum cleaner in a particularly advantageous manner. This is ensured in particular because the fluid flows horizontally or horizontally from the Suction inlet opening or the inlet section flows out. Turbulent eddies are thereby reduced or completely prevented.
Gemäß einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung kann vorgesehen sein, dass der erste Einlassteilabschnitt sowie der dritte Einlassteilabschnitt so zueinander positioniert sind, dass eine Mittelängsachse des ersten Einlassteilabschnitts und die Mittelängsachse des dritten Einlassteilabschnitts im Wesentlichen parallel zueinander angeordnet sind. Es ist dabei möglich, dass die Mittelängsachse des ersten Einlassteilabschnitts und die Mittelängsachse des dritten Einlassteilabschnitts und damit auch im Wesentlichen der erste Einlassteilabschnitt sowie der dritte Einlassteilabschnitt waagerecht bzw. horizontal angeordnet sind. Hierdurch kann ein besonders vorteilhaftes Ausströmen des Fluids aus der Saugeinlassöffnung bzw. Einströmen des Fluids in den Innenraum des Staubsaugers erreicht werden.According to a further advantageous embodiment of the present invention, it can be provided that the first inlet sub-section and the third inlet sub-section are positioned relative to one another in such a way that a central longitudinal axis of the first inlet sub-section and the central longitudinal axis of the third inlet sub-section are arranged essentially parallel to one another. It is possible that the central longitudinal axis of the first inlet sub-section and the central longitudinal axis of the third inlet sub-section and thus also essentially the first inlet sub-section and the third inlet sub-section are arranged horizontally or horizontally. In this way, a particularly advantageous outflow of the fluid from the suction inlet opening or inflow of the fluid into the interior of the vacuum cleaner can be achieved.
Entsprechend einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung kann vorgesehen sein, dass der erste Einlassteilabschnitt sowie der dritte Einlassteilabschnitt so zueinander positioniert ist, dass eine Mittelängsachse des ersten Einlassteilabschnitts und die Mittelängsachse des dritten Einlassteilabschnitts im Wesentlichen in einem spitzen Winkel zueinander angeordnet sind. Hierdurch kann eine höhere Strömungsgeschwindigkeit des Fluids in der Saugeinlassöffnung erreicht werden, die wiederum ein verbessertes Strömungsverhalten des Fluids in der Saugeinlassöffnung bzw. auch aus der Saugeinlassöffnung ermöglicht.According to a further advantageous embodiment of the present invention, it can be provided that the first inlet sub-section and the third inlet sub-section are positioned relative to one another in such a way that a central longitudinal axis of the first inlet sub-section and the central longitudinal axis of the third inlet sub-section are arranged essentially at an acute angle to one another. In this way, a higher flow rate of the fluid in the suction inlet opening can be achieved, which in turn enables an improved flow behavior of the fluid in the suction inlet opening or also out of the suction inlet opening.
Um eine geführte bzw. gerichtete Strömung des angesaugten Mediums in der Saugeinlassöffnung zu erreichen, kann gemäß einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung es möglich sein, dass zwischen dem ersten Einlassteilabschnitt und dem zweiten Einlassteilabschnitt ein erster Krümmungsabschnitt sowie zwischen von dem zweiten Einlassteilabschnitt und dem dritten Einlassteilabschnitt ein zweiter Krümmungsabschnitt vorgesehen ist.In order to achieve a guided or directed flow of the sucked-in medium in the suction inlet opening, according to a further advantageous embodiment of the present invention, it may be possible for a first curved section between the first inlet section and the second inlet section and between the second inlet section and the third Inlet section a second curved section is provided.
Erfindungsgemäß ist ferner vorgesehen, dass eine Einlassöffnung des ersten Einlassteilabschnitts an einer auf dem Aufbewahrungsbehälter aufsetzbaren Saugkopfeinrichtung positioniert ist. Hierdurch die Saugeinlassöffnung bequem zusammen mit dem Saugkopf von dem Staubsauger entfernt werden, um dem Anwender beispielsweise direkten bzw. ungehinderten Zugang zu dem Aufbewahrungsbehälter zu ermöglichen. Dies ist insbesondere vorteilhaft, wenn der Aufbewahrungsbehälter entleert werden muss. Erfindungsgemäß ist darüber hinaus vorgesehen, dass die Mittelängsachse des dritten Einlassteilabschnitts und eine Mittelängsachse des ersten Einlassteilabschnitts in einer Ebene liegen.According to the invention it is further provided that an inlet opening of the first inlet section is positioned on a suction head device that can be placed on the storage container. As a result, the suction inlet opening can be conveniently removed from the vacuum cleaner together with the suction head in order to allow the user, for example, direct or unhindered access to the storage container. This is particularly advantageous if the storage container has to be emptied. According to the invention it is also provided that the central longitudinal axis of the third inlet sub-section and a central longitudinal axis of the first inlet sub-section lie in one plane.
Um ein möglichst optimales Strömungsverhalten des angesaugten Fluids in der Saugeinlassöffnung und insbesondere ein möglichst schnelles Durchströmen des Fluids durch den zweiten und dritten Einlassteilabschnitt zu erreichen, kann gemäß einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung es möglich sein, dass der zweite Einlassteilabschnitt und der dritte Einlassteilabschnitt so zueinander angeordnet sind, dass der zweite Einlassteilabschnitt und der dritte Einlassteilabschnitt so ausgestaltet sind, dass bei einer vertikalen Anordnung des zweiten Einlassteilabschnitts und bei einer horizontalen Anordnung des dritten Einlassteilabschnitts sich die Querschnittsfläche des zweiten Einlassteilabschnitts und die Querschnittsfläche des dritten Einlassteilabschnitts mit einem Wert von 15% bis 25%, insbesondere 20%, überschneiden.In order to achieve the best possible flow behavior of the sucked fluid in the suction inlet opening and in particular the fastest possible flow of the fluid through the second and third inlet section, according to a further advantageous embodiment of the present invention, it may be possible that the second inlet section and the third inlet section are so are arranged to each other that the second inlet sub-section and the third inlet sub-section are designed such that with a vertical arrangement of the second inlet sub-section and with a horizontal arrangement of the third inlet sub-section, the cross-sectional area of the second inlet sub-section and the cross-sectional area of the third inlet sub-section with a value of 15% up to 25%, especially 20%, overlap.
Entsprechend einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung kann vorgesehen sein, dass an einer Auslassöffnung des dritten Einlassteilabschnitts ein zylindrischer Verlängerungsabschnitt vorgesehen ist, wobei der Verlängerungsabschnitt im Wesentlichen waagerecht angeordnet ist. Hierdurch kann ein besonders vorteilhaftes Ausströmen des Fluids aus der Saugeinlassöffnung bzw. dem dritten Einlassteilabschnitt erreicht werden.According to a further advantageous embodiment of the present invention, it can be provided that a cylindrical extension section is provided at an outlet opening of the third inlet sub-section, the extension section being arranged essentially horizontally. In this way, a particularly advantageous outflow of the fluid from the suction inlet opening or the third inlet sub-section can be achieved.
Entsprechend einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung kann vorgesehen sein, dass an einer Auslassöffnung des dritten Einlassteilabschnitts ein plattenförmiger Verlängerungsabschnitt vorgesehen ist, wobei der Verlängerungsabschnitt im Wesentlichen waagerecht und an einem unteren Ende des dritten Einlassteilabschnitts angeordnet ist. Hierdurch kann ein besonders vorteilhaftes Ausströmen des Fluids aus der Saugeinlassöffnung bzw. dem dritten Einlassteilabschnitt erreicht werden. Alternativ kann anstelle des plattenförmigen Verlängerungsabschnitts auch eine Lippe vorgesehen sein. Diese Lippe kann dabei aus Gummi oder einem anderen elastischen Material gefertigt sein.According to a further advantageous embodiment of the present invention it can be provided that a plate-shaped extension section is provided at an outlet opening of the third inlet section, the extension section being arranged essentially horizontally and at a lower end of the third inlet section. In this way, a particularly advantageous outflow of the fluid from the suction inlet opening or the third inlet sub-section can be achieved. Alternatively, a lip can also be provided instead of the plate-shaped extension section. This lip can be made of rubber or another elastic material.
Um eine besonders optimale Anpassung der Fluidströmung an die Saugeinlassöffnung zwischen dem zweiten und dritten Einlassteilabschnitt zu erreichen, kann gemäß einer weiteren vorteilhaften Ausgestaltungsform der vorliegenden Erfindung kann vorgesehen sein, dass an einer Innenseite des zweiten Krümmungsabschnitts eine Einbuchtung vorgesehen ist. Mit Hilfe der Einbuchtung, die in Form einer Delle ausgestaltet sein kann, kommt es in der Saugeinlassöffnung zwischen dem zweiten und dritten Einlassteilabschnitt zu dem Coandä-Effekt, durch welchen das Fluid förmlich an der Innenseite des zweiten Krümmungsabschnitts anliegt.In order to achieve a particularly optimal adaptation of the fluid flow to the suction inlet opening between the second and third inlet section, a further advantageous embodiment of the present invention can provide for an indentation to be provided on an inside of the second curved section. With the help of the indentation, which can be designed in the form of a dent, the Coanda effect occurs in the suction inlet opening between the second and third inlet section, through which the fluid is literally applied to the inside of the second curved section.
Weitere Vorteile ergeben sich aus der folgenden Figurenbeschreibung. In den Figuren sind verschiedene Ausführungsbeispiele der vorliegenden Erfindung dargestellt. Die Figuren, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmässigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the figures. Various exemplary embodiments of the present invention are shown in the figures. The figures, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
In den Figuren sind gleiche und gleichartige Komponenten mit gleichen Bezugszeichen beziffert.In the figures, the same and similar components are numbered with the same reference numerals.
Es zeigen:
- Fig. 1
- eine Seitenansicht auf einen Staubsauger mit einer erfindungsgemäßen Saugeinlassöffnung und einem Aufbewahrungsbehälter für ein angesaugtes Fluid;
- Fig. 2
- eine Vorderansicht auf einen Staubsauger;
- Fig. 3
- eine Innenansicht auf einen Staubsauger mit der erfindungsgemäßen Saugeinlassöffnung, einer Turbine, einem Filter und dem Aufbewahrungsbehälter für ein angesaugtes Fluid;
- Fig. 4
- eine Seitenansicht auf die erfindungsgemäßen Saugeinlassöffnung gemäß einer ersten Ausführungsform enthaltend einen ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt und einen dritten Einlassteilabschnitt;
- Fig. 5
- eine Seitenansicht auf die erfindungsgemäßen Saugeinlassöffnung gemäß einer zweite Ausführungsform enthaltend einen ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt und einen dritten Einlassteilabschnitt, wobei der erste Einlassteilabschnitt eine Neigung aufweist;
- Fig. 6
- eine Seitenansicht auf die erfindungsgemäßen Saugeinlassöffnung gemäß einer dritten Ausführungsform enthaltend einen ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt und einen dritten Einlassteilabschnitt, wobei der dritte Einlassteilabschnitt einen zylindrischen Verlängerungsabschnitt aufweist;
- Fig. 7
- eine Seitenansicht auf die erfindungsgemäßen Saugeinlassöffnung gemäß einer vierten Ausführungsform enthaltend einen ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt und einen dritten Einlassteilabschnitt, wobei der dritte Einlassteilabschnitt einen plattenförmigen Verlängerungsabschnitt aufweist;
- Fig. 8
- eine Seitenansicht auf die erfindungsgemäßen Saugeinlassöffnung gemäß einer fünften Ausführungsform enthaltend einen ersten Einlassteilabschnitt, einen zweiten Einlassteilabschnitt und einen dritten Einlassteilabschnitt, wobei der dritte Einlassteilabschnitt eine Einbuchtung aufweist;
- Fig. 9
- eine Schnittansicht gemäß des Schnitts A-A in der Ansicht aus
Fig. 4 ; und - Fig. 10
- eine Schnittansicht gemäß des Schnitts B-B in der Ansicht aus
Fig. 4 .
- Fig. 1
- a side view of a vacuum cleaner with a suction inlet opening according to the invention and a storage container for a sucked fluid;
- Fig. 2
- a front view of a vacuum cleaner;
- Fig. 3
- an interior view of a vacuum cleaner with the suction inlet opening according to the invention, a turbine, a filter and the storage container for a sucked fluid;
- Fig. 4
- a side view of the suction inlet opening according to the invention according to a first embodiment containing a first inlet section, a second inlet section and a third inlet section;
- Fig. 5
- a side view of the suction inlet opening according to the invention according to a second embodiment containing a first inlet sub-section, a second inlet sub-section and a third inlet sub-section, the first inlet sub-section having an incline;
- Fig. 6
- a side view of the suction inlet opening according to the invention according to a third embodiment containing a first inlet section, a second inlet section and a third inlet section, the third inlet section having a cylindrical extension section;
- Fig. 7
- a side view of the suction inlet opening according to the invention according to a fourth embodiment containing a first inlet sub-section, a second inlet sub-section and a third inlet sub-section, the third inlet sub-section having a plate-shaped extension section;
- Fig. 8
- a side view of the suction inlet opening according to the invention according to a fifth embodiment containing a first inlet sub-section, a second inlet sub-section and a third inlet sub-section, the third inlet sub-section having an indentation;
- Fig. 9
- a sectional view according to the section AA in the view from
Fig. 4 ; and - Fig. 10
- a sectional view according to the section BB in the view from
Fig. 4 .
Wie in
Der Aufbewahrungsbehälter 3 enthält im Wesentlichen einen Hohlraum 9 zur Aufnahme und Speichern eines durch den Staubsauger 1 angesaugten Fluids F. Der Aufbewahrungsbehälter 3 weist dazu vier Seitenwände 3a, 3b und einen Boden 3c auf. Die Seitenwände 3a, 3b und der Boden 3c definieren den Hohlraum 9, in dem sich das angesaugte Fluid F bzw. Schmutzpartikel S, welche durch das Fluid F in das Innere des Staubsaugers 1 gebraucht wurden, sammeln kann. An dem Boden 3c sind zusätzlich noch vier Räder 10a, 10b, 10c zum mobilen Einsatz des Staubsaugers 1 angebracht. In den Figuren sind lediglich eine erste Seitenwand 3a, eine zweite Seitenwand 3b (vgl.
Die Turbine 6 dient zur Erzeugen eines Unterdrucks im Inneren des Staubsaugers 1 und insbesondere im Inneren des Aufbewahrungsbehälters 3, durch den ein Fluid F angesaugt werden kann. Das angesaugte Fluid F strömt durch den Filter 7 und tritt durch die zweite Öffnung 5 wieder aus dem Saugkopf 2 hinaus.The
Die Saugeinlassöffnung 8 ist in der ersten Öffnung 4 positioniert bzw. erstreckt sich durch die erste Öffnung 4. An der Saugeinlassöffnung 8 kann ein Saugschlauch 11 angeschlossen werden. Wie in
Die Saugeinlassöffnung 8 enthält im Wesentlichen einen ersten Einlassteilabschnitt 12, einen zweiten Einlassteilabschnitt 13 und einen dritten Einlassteilabschnitt 14. Der erste, zweite und dritte Einlassteilabschnitt 12, 13, 14 ist im Wesentlichen jeweils als zylindrisches Rohr ausgestaltet, durch das ein von dem Staubsauger 1 angesaugtes Fluid F strömen kann. Der erste Einlassteilabschnitt 12 enthält eine Einlassöffnung 12a, welche an dem an dem Saugkopf 2 und insbesondere an der ersten Öffnung 4 befestigt ist. Hierdurch kann die gesamte Saugeinlassöffnung 8 zusammen mit dem Saugkopf 2 von dem Aufbewahrungsbehälter 3 entfernt werden.The
Der erste Einlassteilabschnitt 12 ist dabei über den zweiten Einlassteilabschnitt 13 mit dem dritten Einlassteilabschnitt 14 verbunden. Hierzu ist zwischen dem ersten Einlassteilabschnitt 12 und dem zweiten Einlassteilabschnitt 13 ein erster Krümmungsabschnitt 15 positioniert. Des Weiteren ist zwischen dem zweiten Einlassteilabschnitt 13 und dem dritten Einlassteilabschnitt 14 ein zweiter Krümmungsabschnitt 16 positioniert. Der erste und zweite Krümmungsabschnitt 15, 16 kann dabei auch als Kurve, Bogen oder dergleichen bezeichnet werden. Ein gekrümmter Übergang von dem ersten Einlassteilabschnitt 12 zu dem zweiten Einlassteilabschnitt 13 sowie von dem zweiten Einlassteilabschnitt 13 zu dem dritten Einlassteilabschnitt 14 ist wichtig für ein optimales Strömungsverhalten des angesaugten Fluids F. Der Grad der Krümmung an den Übergängen zwischen den jeweiligen Einlassteilabschnitten 12, 13, 14 sowie der Durchmesser der Einlassteilabschnitte 12, 13, 14 als auch der Krümmungsabschnitte 15, 16 ist dabei so zu wählen, dass wenigstens der halbe Medienstrom des angesaugten Fluids F erfasst und umgelenkt werden kann.The
Gemäß der in
Wie bereits vorstehend beschrieben wird durch die Turbine 6 im Inneren ein Unterdruck erzeugt, der dafür sorgt, dass ein Fluid F aus der Umgebung des Staubsaugers 1 durch die erste Öffnung 4 in das Innere des Staubsaugers 1 angesaugt wird. Bei dem Fluid F kann es sich um ein Gas und/oder eine Flüssigkeit handeln. Gemeinsam mit dem Fluid F können auch Feststoffe, wie z.B. Schmutzpartikel, angesaugt und in das Innere des Staubsaugers 1 befördert werden. Nachdem das Fluid F, welches auch als Medium bezeichnet wird, durch den ersten Einlassteilabschnitt 12 über den ersten Krümmungsabschnitt 15 in den zweiten Einlassteilabschnitt 13 und über den zweiten Krümmungsabschnitt 16 in den dritten Einlassteilabschnitt 14 strömt, tritt das Fluid F durch die Auslassöffnung 14a des dritten Einlassteilabschnitts 14 in den Aufbewahrungsbehälter 3. Das Fluid F strömt über den Filter 7 und durch die zweite Öffnung 5 wieder aus dem Staubsauger 1 hinaus. Schmutzpartikel, die zusammen mit dem als Medium wirkenden Fluid F angesaugt wurden, werden in dem Aufbewahrungsbehälter 3 gesammelt (vgl.
Für einen besonders günstigen Strömungsverlauf des Fluids F durch die Saugeinlassöffnung 8 ist der zweite und dritte Einlassteilabschnitt 13, 14 so zueinander angeordnet, dass kein zu großer Durchfluss von dem zweiten zu dem dritten Einlassteilabschnitt 13, 14 besteht.
Claims (8)
- Suction head (2) connectable to a vacuuming device (1), which is suitable in particular for sucking up a fluid (F) and storing it in a reservoir (3), containing a suction inlet opening (8) with at least a first inlet subsection (12), a second inlet subsection (13) and a third inlet subsection (14), the first inlet subsection (12) being connected by means of the second inlet subsection (13) to the third inlet subsection (14) in such a way that a fluid (F) sucked in by the vacuuming device (1) subsequently flows through the first, second and third inlet subsections (12, 13, 14) to the reservoir (3), a central longitudinal axis (R) of the third inlet subsection (14) being arranged substantially horizontally, so that the fluid (F) flows out of the third inlet subsection (14) into the reservoir (3) substantially horizontally, an inlet opening (12a) of the first inlet subsection (12) being positioned at the suction head (2) that can be fitted on the reservoir (3), characterized in that the central longitudinal axis (R) of the third inlet subsection (14) and a central longitudinal axis (M) of the first inlet subsection (12) lie in a plane.
- Suction inlet opening (8) according to Claim 1,
characterized in that the first inlet subsection (12) and the third inlet subsection (14) are positioned in relation to one another in such a way that the central longitudinal axis (M) of the first inlet subsection (12) and the central longitudinal axis (R) of the third inlet subsection (14) are arranged substantially parallel to one another. - Suction inlet opening (8) according to Claim 1,
characterized in that the first inlet subsection (12) and the third inlet subsection (14) are positioned in relation to one another in such a way that the central longitudinal axis (M) of the first inlet subsection (12) and the central longitudinal axis (R) of the third inlet subsection (14) are arranged substantially at an acute angle to one another. - Suction inlet opening (8) according to at least one of Claims 1 to 3,
characterized in that a first curvature section (15) is provided between the first inlet subsection (12) and the second inlet subsection (13) and a second curvature section (16) is provided between the second inlet subsection (13) and the third inlet subsection (14). - Suction inlet opening (8) according to at least one of Claims 1 to 4,
characterized in that the second inlet subsection (13) and the third inlet subsection (14) are designed in such a way that, when there is a vertical arrangement of the second inlet subsection (13) and a horizontal arrangement of the third inlet subsection (14), the cross-sectional area (A) of the second inlet subsection (13) and the cross-sectional area (B) of the third inlet subsection (14) overlap with a value of 15% to 25%, in particular 20%. - Suction inlet opening (8) according to at least one of Claims 1 to 5,
characterized in that a cylindrical extension section (17) is provided at an outlet opening (14a) of the third inlet subsection (14), the extension section (17) being arranged substantially horizontally. - Suction inlet opening (8) according to at least one of Claims 1 to 5,
characterized in that a plate-like extension section (18) is provided at an outlet opening (14a) of the third inlet subsection (14), the extension section (18) being arranged substantially horizontally and at a lower end (14b) of the third inlet subsection (14). - Suction inlet opening (8) according to at least one of Claims 1 to 7,
characterized in that an indentation (20) is provided on an inner side (19) of the second curvature section (16).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP16152661.1A EP3199081B1 (en) | 2016-01-26 | 2016-01-26 | Parallel inlet nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16152661.1A EP3199081B1 (en) | 2016-01-26 | 2016-01-26 | Parallel inlet nozzle |
Publications (2)
Publication Number | Publication Date |
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EP3199081A1 EP3199081A1 (en) | 2017-08-02 |
EP3199081B1 true EP3199081B1 (en) | 2021-04-07 |
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EP16152661.1A Active EP3199081B1 (en) | 2016-01-26 | 2016-01-26 | Parallel inlet nozzle |
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539195A (en) * | 1950-05-02 | 1951-01-23 | Gen Electric | Inlet dirt deflector and filter arrangement for suction cleaners |
GB1256728A (en) * | 1969-07-01 | 1971-12-15 | ||
US4939809A (en) * | 1989-05-01 | 1990-07-10 | Chul Park | Tank type liquid vacuum cleaner |
US20050081324A1 (en) * | 2003-10-16 | 2005-04-21 | Robert Condon | Tip resistant wet/dry vacuum |
US20060010639A1 (en) * | 2004-07-14 | 2006-01-19 | Yuen Se K | Electro-optical vacuum cleaner |
-
2016
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