WO2021043433A1 - Ensemble d'aspiration portable et appareil d'aspiration - Google Patents

Ensemble d'aspiration portable et appareil d'aspiration Download PDF

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Publication number
WO2021043433A1
WO2021043433A1 PCT/EP2020/000148 EP2020000148W WO2021043433A1 WO 2021043433 A1 WO2021043433 A1 WO 2021043433A1 EP 2020000148 W EP2020000148 W EP 2020000148W WO 2021043433 A1 WO2021043433 A1 WO 2021043433A1
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WO
WIPO (PCT)
Prior art keywords
air
suction unit
air intake
flow
intake flow
Prior art date
Application number
PCT/EP2020/000148
Other languages
German (de)
English (en)
Inventor
Victor Fischer
Original Assignee
sauber.io GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by sauber.io GmbH filed Critical sauber.io GmbH
Priority to EP20776068.7A priority Critical patent/EP4025107A1/fr
Publication of WO2021043433A1 publication Critical patent/WO2021043433A1/fr

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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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings

Definitions

  • Portable suction unit and suction device are Portable suction unit and suction device
  • the invention relates to a portable suction unit for the simultaneous suction of different waste fractions by means of an air suction stream and a portable suction device with such a suction unit.
  • Such a portable suction device has a suction unit.
  • the suction unit comprises a blower device for generating the air intake flow and a waste collection container.
  • the waste collection container is designed with an air inlet duct system, with an air outlet duct system and with a collecting container volume arranged fluidically between the air inlet duct system and the air outlet duct system.
  • the air inlet duct system and the air outlet duct system within the meaning of the present invention are implemented in the simplest case in the form of a single tube.
  • a combination of pipes or, in a larger component, individual or combined structurally designed channels can function as an air inlet channel system and as an air outlet channel system.
  • the decisive factor is the functionality which structural components, in their entirety or in sections, cause the entire or predominant part of the air intake stream to enter the direction of the waste collection container. The same applies to the exit of the entire or predominant part of the air intake stream from the waste collection container in the direction of the blower device.
  • Such an air inlet duct system and such an air outlet duct system can have any cross-section in a round, oval or angular shape.
  • Each air inlet duct system and each air outlet duct system has a direction of extent which is straight or curved, at least in sections.
  • the size and / or the geometric shape of the cross section of the air inlet duct system and the air outlet duct system can remain constant at least in sections and / or vary at least in sections.
  • the tube can be designed to be straight or curved along its direction of tube extension, or straight or curved in sections.
  • the feature of the collection container volume of the waste collection container which is fluidically arranged between the air inlet duct system and the air outlet duct system, is to be designed in such a way that the air intake flow for the most part only flows through a portion of the collection container volume in order to get from the air inlet duct system to the air outlet duct system.
  • the blower device is structurally coupled to the waste collection container in such a way that the air intake flow enters the collection container volume through the air inlet duct system and exits the collection container volume of the waste collection container while passing through an air flow deflection section through the air outlet duct system.
  • the air inlet duct system defines an air inflow direction directed towards the air flow deflection section and the air outlet duct system defines an air outflow direction running away from the air flow deflection section. Both the air inflow direction and the air outflow direction are so-called main flow directions. This means that the majority of the air molecules move along these directions due to the laws of flow technology.
  • the air inflow direction and the air outflow direction are macroscopically determinable features that are specified on the basis of the structural design of the air inlet duct system, collecting container volume and air outlet duct system.
  • the air inlet duct system, the air outlet duct system and the collecting container volume are designed and arranged in such a way that in terms of flow between the air inflow direction and the air outflow direction in the airflow deflection section, an air intake flow deflection of more than 40 degrees takes place.
  • This forced change in direction of the air intake flow causes an inertia-gravity sifting between different waste fractions that were sucked in with the air intake flow through the air inlet duct system.
  • Both inertia and gravitational forces and the flow forces exerted on the particles of the waste fractions by the intake air flow act on the waste fractions sucked in in the air intake flow in the area of the air flow deflection section. If, due to the specific size and weight of the constituents of a waste fraction, the force of inertia and gravitational force predominate, these constituents take a different trajectory compared to the course of the air intake flow.
  • the collection container volume is structured in such a way that a large part of the sucked in, mixed waste fractions cannot follow the air intake flow along the entire air deflection section due to the described inertia-gravity sifting and thus remains in the collection container volume and gradually accumulates there.
  • suction units and suction devices with such suction units are known from the prior art, for example from FR 2 861 279 A1, from DE 200 06 284 U1 and DE3722701A1.
  • waste fractions are significantly higher than in living or office interiors of buildings, in which essentially suck up dust.
  • inert waste fractions such as pebbles, grit, glass splinters, crown caps, sand and dust, as well as at least partially combustible waste fractions such as plant leaves, thin twigs, dead insects, Paper handkerchiefs, cigarette butts and packaging materials of paper and / or plastic. Due to the very different dimensions and density of the individual waste fractions, they behave differently in the air deflection section.
  • waste fractions as described above, is not able to entrain the intake air flow through the entire air flow deflection section due to the comparatively high density and the small spatial extent of the individual components of these waste fractions, so that they are in the collecting container volume to be deposited.
  • Other waste fractions with relatively light and spatially extensive components such as plant leaves, plastic foils and paper handkerchiefs, are carried away by the intake air flow through the entire air flow deflection section and thus move along the air intake flow in the direction of the air outlet duct system.
  • constituents of waste fractions are referred to as constituents of waste fractions.
  • waste fractions can be recyclable or compostable valuable materials, which are also referred to as waste fractions in the context of the present invention.
  • waste fractions can be quite desirable in the outside area, for example in the area between paving stones. It would therefore not be called waste per se.
  • suction units known from the prior art for suction devices equipped with them therefore have, in addition to the collection container volume for the waste fractions separated by inertial gravity sifting, further waste collection containers that are fluidically downstream of the air outlet duct system. In this further waste collection containers then collect, in particular, the waste fractions described above with components of comparatively light and extensive dimensions.
  • the present invention is therefore based on the object of providing a suction unit, in particular for suction devices used outdoors, which has a simpler structure and, as a result, a lower weight. At the same time, it should be easy to use and robust for use, especially outdoors.
  • this object is achieved in that a mechanical separation device with a plurality of opening dimensions for the air intake flow is arranged between the air inlet duct system and the air outlet duct system in such a way that a waste fraction sucked against an inflow surface of the mechanical separation device and held by the air intake flow after the Air intake flow enters the collecting container volume due to gravitation.
  • This scenario assumes a proper arrangement of the suction unit in relation to the gravitational pull.
  • waste fractions are sucked up from the bottom.
  • the intended arrangement of the suction unit viewed from the direction of the center of the earth, is above the waste fractions to be sucked off.
  • the waste fractions mentioned here are those with comparatively light and extensive components.
  • the mechanical separating device is positioned in relation to the space of the collecting container volume in such a way that the component, following the force of gravity, falls directly into the collecting container volume or slides down indirectly in the direction of the collecting container volume.
  • further structures can interact with the detaching components, so that these structures act like ramps that bring about and direct the sliding movement of the components detached from the mechanical separating device in the direction of the collecting container volume.
  • the mechanical separation device is particularly preferably designed and arranged as a transition between the collecting container volume and the air outlet duct system.
  • the mechanical separating device forms the boundary between the collecting container volume and the air outlet duct system.
  • the airflow deflecting section can lie in front of the mechanical separating device.
  • the air flow deflecting section can also be formed in the area of the mechanical separating device, that is to say, for example, the air flow deflecting section extends from the collecting container volume into the mechanical separating device.
  • the embodiments described above are preferably characterized in that the majority of the opening dimensions are designed as slots with a ratio of a slot width to a slot length of at least 1:10 and with a slot extension direction along the slot length.
  • this size ratio is at least 1:15, even more preferably at least 1:20.
  • a slot geometry with the opening dimensions has the particular advantage over a grid that with a narrow design of the webs forming the slots, a more favorable ratio of the cross section free for the air intake flow to the blocked cross section can be achieved.
  • the grids, unlike slots, are periodically provided in two dimensions and offer much more vortex-forming flow resistance for the air intake flow. Furthermore, due to the large number of transverse webs, a classic grille pollutes significantly faster and more than parallel lamellar ribs. This becomes particularly clear in the case of a cleaning process of webs arranged parallel to one another between slots.
  • Impurities hanging on the webs can be freed from them by a brushing movement parallel to the direction in which the webs extend. With such a straight-line movement over a grating, contaminants remained hanging on the grating bars extending transversely to the movement. Cleaning the grille is much more difficult compared to the bars with the slots in between.
  • the plurality of slots is preferably formed by a plurality of lamellar ribs, these lamellar ribs each being arranged adjacent to one another at a lamellar rib spacing.
  • the possibility of structural extension and design of the lamellar ribs in the direction of flow allows them to be made narrow transversely to the direction of flow and significantly longer along the direction of flow.
  • Ratios between the lamellar rib width transversely to the direction of flow and the extent of the lamellar ribs in the direction of flow are preferably greater than 1: 5, more preferably greater than 1:10 and particularly preferably greater than 1:20.
  • the lamellar ribs it is advantageous to design the lamellar ribs to be rounded in the area where they form the inflow surface of the mechanical separating device. This refinement makes it more difficult for components of waste fractions to get caught or tilted, which penetrate as far as the inflow surface of the mechanical separating device.
  • the area of the opening dimensions designed as slots is more than 50% compared to the area of the lamellar ribs.
  • These lamellar ribs can be aerodynamically optimized in the direction of flow for the air intake flow through their structural design, so that in the ideal case a laminar flow of the air intake flow can flow through the slot-shaped opening dimensions of the mechanical separating device without significant vortex formation. This reduces the energy consumption of the blower device for driving the air intake flow.
  • the ratio of the area through which the air intake flow can flow through the opening dimensions in the form of slots to the inflow area formed by the lamellar ribs is more preferably greater than 60%, even more preferably greater than 70%.
  • the lamellar rib spacing increases in the direction of the air intake flow, viewed through the opening dimensions formed as slots. This ensures that solid bodies penetrating into the slots are not wedged between the adjacent lamellar ribs by the force of the air intake flow. Such wedging would make cleaning the mechanical separating device significantly more difficult.
  • This structural measure reduces the risk of a steadily increasing clogging of the mechanical separation device by components of waste fractions which, due to their small size, can penetrate into the slots of the mechanical separation device.
  • the increase in the distance is preferably 10% and particularly preferably 15%.
  • a lamellar rib thickness viewed transversely to the slot extension direction, increases starting from the inflow surface in the direction of the outlet of the air intake flow from the mechanical separating device. This makes it possible to form a lamellar rib that is comparatively narrow in the area of the flow surface of the mechanical separating device.
  • the lamellar rib receives the necessary mechanical rigidity through its increasing lamellar rib thickness in the direction of flow.
  • each slot has a slot extension direction which is arranged at an angle of less than 20 degrees to the air inflow direction of the air intake flow. This ensures that components of waste fractions transported in the air intake flow hit the lamellar ribs at an acute angle. On the one hand, this makes it difficult for smaller components to penetrate into the slots between the lamellar ribs. On the other hand, the mechanical stress on the lamellar ribs is reduced when components of the waste fractions collide, because the impact force is less due to the acute angle. In this way, the wear on the mechanical separating device is less during continuous operation of the suction unit.
  • the mechanical separating device is arranged on the upper edge area of the waste collection container in such a way that when the suction unit is positioned for the intended use, a projection of the separating device following the gravity gradient into the collecting container- Maps volume.
  • a baffle device is arranged in the waste collection container or in the air inlet duct system in such a way that the air intake stream at least partially hits the baffle device, the baffle device being designed and oriented in such a way that the baffle device hits this deflects incident waste fractions with regard to their direction of movement.
  • the impact device is therefore preferably designed and oriented in such a way that impacting components, following the laws of mechanics, ricochet off in the direction of the collecting container volume.
  • the impact device can be plate-shaped with a flat or curved surface. It is also conceivable that the impact device has openings which allow the air intake flow to partially flow through the impact device.
  • the impact device is preferably designed and aligned in such a way that it deflects the entire air intake flow. That means the The impact device is designed without openings and, together with the surrounding structural design of the waste collection container with its air inlet duct system, the entire air intake flow is deflected. This feature is again to be interpreted macroscopically and not microscopically with regard to the air intake flow.
  • a first waste removal flap is arranged on the underside of the waste collection container or the waste collection container is designed to be pivotable or partially removable.
  • the constituents of waste fractions that have accumulated in the collecting container volume can be emptied into another, usually larger, waste container.
  • the dimensions of the collecting container volume are limited.
  • Another variant provides for all of the above-described embodiments of the portable suction unit with the advantage that a further mechanical separating device with sieve-shaped opening dimensions of less than or equal to four millimeters is arranged in the lower half of the collecting container volume.
  • a further waste removal flap is arranged on the waste collection container above the further mechanical separation device. It is also possible for all of the preceding variants of the portable suction unit to arrange a viewing window in the area of the collecting container volume in order to be able to assess the filling level of the collecting container volume from the outside.
  • An advantageous variant of the portable suction unit is characterized in that the air inlet duct system is curved along its extension and thereby runs through an angular range of more than 90 degrees.
  • Such an elongated air inlet duct system enables a certain spatial division of the components of different waste fractions in the area of the air inlet duct system, for example in conjunction with a change in the cross section through which the air flows and thus the flow velocity of the air intake flow.
  • This structure can be coupled with a baffle device in order to ensure the desired feeding of the majority of the waste fractions from the air intake flow into the collecting container volume.
  • a holding device to be arranged above the air inlet duct system which enables one-armed operation of the suction unit. This results in an easy-to-use use of the suction unit and a suction device formed therewith.
  • the components are arranged so that they are balanced relative to one another that the center of gravity of the suction device is below the holding device.
  • a suction hose attached to the air inlet duct system or a suction pipe or a combination of the two components can be advantageous.
  • a suction hose or suction pipe attached to the air inlet duct system turns the suction unit into a suction device.
  • FIG. 1 a first embodiment of a portable suction unit in a schematic, not to scale longitudinal section
  • FIG. 2 a second embodiment of a portable suction unit in a schematic, not to scale longitudinal section and expanded by a suction pipe to form a portable suction device
  • FIG. 3 a third embodiment of a portable suction unit in a schematic, not to scale longitudinal section
  • FIG. 4 a fourth embodiment of a portable suction unit in a schematic, not to scale longitudinal section
  • Figure 5 a plan view of the fourth embodiment of the portable suction unit
  • FIG. 6 a perspective view of the inflow surface of a possible embodiment of a mechanical separating device 4 used in the suction unit with a plurality of slot-shaped opening dimensions 40;
  • FIG. 7 a perspective view of the outflow surface of the mechanical separating device 4 from FIG. 6;
  • FIG. 8 a further perspective view of the flow surface of the mechanical separating device 4 from FIGS. 6 and 7,
  • Figure 9 a perspective view of a cross section of the mechanical
  • Figure 10 a plan view of the cross section of the mechanical
  • Figure 1 shows a first embodiment of a portable suction unit in a schematic, not to scale longitudinal section.
  • a waste collecting container 2 has an air inlet duct system 21 designed as a simple tube, a collecting container volume 23 arranged downstream in terms of flow, and an air outlet duct system 22.
  • a mechanical separating device 4 forms the boundary area between the collecting container volume 23 and the air outlet duct system 22.
  • the mechanical separating device 4 has opening dimensions 40, not shown in this figure, which enable the air intake stream flowing from the air inlet duct system 21 through areas of the collecting container volume 23 to the air outlet duct system 22 to flow through.
  • the air intake flow is generated by a blower device 1 which is arranged on the waste collection container 2.
  • the fan device 1 is preferably wireless for a portable suction unit, ie equipped with an accumulator as an energy source.
  • the waste collection container 2 also has a baffle device 24 that is structurally designed as a wall. When the suction unit is in use, the air suction stream entering the collecting container volume 23 along an air inflow direction LE carries with it components of various waste fractions.
  • the impact device 24 exerts a substantially elastic shock with each component of the waste fractions that hits it, provided that the component does not have predominantly inelastic properties due to its material properties. As a result, these essentially elastically repelled components of the waste fractions are accelerated downwards away from the impact device 24. This effect is reinforced by the force of gravity, which also acts on the components.
  • waste fractions Depending on the density, material properties and the spatial extent, it is possible that certain waste fractions have a lower mass inertia and offer a larger surface for the flow forces of the air intake stream. Then these flow forces predominate and transport components of such waste fractions in the air intake flow then up to the mechanical separating device 4. Here, these components are unable to pass through the opening dimensions of the mechanical separating device 4. Therefore, these components are drawn to the mechanical separator by the air suction flow.
  • Waste fractions will sink to the bottom of the collecting container volume 23 following the force of gravity.
  • the constituents of all waste fractions accumulated here can be emptied there, for example via a pivotable flap 25 formed on the collecting container volume 23.
  • FIG. 2 shows a second embodiment of a portable suction unit in a schematic, not to scale longitudinal section and expanded by a suction pipe 7 to a portable suction device.
  • this suction unit effects the inertia-gravity sifting without a baffle device.
  • the air intake flow entering the collecting container volume 23 with the waste fractions in the air inflow direction LE is turned in the air flow deflection section 3 by around 180 degrees towards the mechanical separating device 4.
  • a further mechanical separating device 5 is arranged in the form of a sieve grid.
  • a viewing window and / or a further waste removal flap 50 is arranged on the waste collection container 2 on the side of the collecting container volume. At the lower end of the waste collection container 2, a first waste removal flap is attached, which is not also shown here in the open state.
  • FIG. 3 shows a third embodiment of a portable suction unit in a schematic, not to scale longitudinal section.
  • the same components are provided with the same reference numerals and the preceding statements apply accordingly.
  • no baffle device is provided for the intake air flow.
  • the inertial gravity sifting of the waste fractions takes place, as in the second embodiment, by deflecting the intake air flow by around 180 degrees.
  • the mechanical separating device 4 is arranged with its inflow surface oriented vertically and not horizontally.
  • FIG. 4 shows a fourth embodiment of a portable suction unit in a schematic, not to scale longitudinal section.
  • the same components are provided with the same reference numerals and the preceding statements apply accordingly.
  • a spatially wider mechanical separating device 4 is implemented here. This extends around the air intake flow entering the collecting container volume 23, encompassing both sides.
  • This spatial arrangement of the mechanical separating device 2, which extends on both sides, is illustrated in conjunction with FIG. 5 as a plan view of the sectional plane VV laid out in FIG.
  • the air intake flow enters the collecting container volume 23, it reaches the air flow deflection section 3, which is spatially surrounded by the mechanical separating device 4.
  • the air intake flow is deflected around 90 degrees to the right and left.
  • a holding device 6 for the portable suction unit is shown here, which enables one-handed or two-handed operation.
  • the air intake flow does not flow directly onto the mechanical separation device 4, that is to say the air intake flow does not flow onto the mechanical separation device 4 at a perpendicular or acute angle. If an acute angle is selected, any waste fractions that may be present, for example sand bodies, could damage the mechanical separating device 4 over time. It has therefore proven to be expedient, as illustrated in FIG. 4 and especially FIG. 5, to choose an obtuse angle.
  • the inflow surface of the mechanical separating device 4 is oriented essentially parallel to the air inflow direction LE.
  • the angle between the air inflow direction LE and the inflow surface of the mechanical separating device 4 may be, for example, 180 °; an angle range of 240 ° to 120 ° or 210 ° to 150 ° has proven to be expedient.
  • the angle can be determined in relation to the main plane of extent of the inflow surface.
  • the mechanical separating device has 4 slot-shaped openings and lamellar ribs, the corresponding lamellar ribs then advantageously form an angle of approx. 90 ° to the air intake flow, an angle range of 60 ° to 120 ° is advisable.
  • it is particularly useful if two mechanical separation devices are arranged opposite one another around the air intake flow. It is also expedient to use a mechanical separation device which extends radially around the air inflow direction of the air intake flow.
  • FIG. 6 shows a perspective view of the flow surface of a possible embodiment of a mechanical separating device 4 used in the suction unit with a plurality of slot-shaped opening dimensions 40.
  • the slots 40 arranged parallel to one another are formed by a corresponding number of lamellar ribs 41 arranged parallel to one another.
  • the lamellar ribs 41 extend between opposite edges of a frame.
  • the frame has a certain expansion in the flow direction of the intake air flow, which is indicated by an arrow.
  • the parallel lamellar ribs 41 also extend along this extension from the inflow surface to the outflow surface.
  • FIG. 7 shows a perspective view of FIG. 7
  • the mechanical separating device 4 is thus implemented in the form of such a lamellar filter, which is described in more detail below.
  • FIG. 8 shows a further perspective view of the flow surface of the mechanical separating device 4 from FIGS. 6 and 7.
  • FIG. 9 shows one perspective view of a cross section of the mechanical separating device 4 from FIG. 8 along the sectional plane IXIX drawn with dash-dotted lines in FIG.
  • the lamellar ribs 41 which are periodically spaced from one another, form the periodically arranged opening dimensions of the mechanical separating device 4, which are designed as slots 40.
  • a low flow resistance is achieved by a favorable ratio of the blocked cross section (sum of the surfaces of the lamellar ribs 41 on the inflow surface) to the cross section through which the air flows (sum of the surfaces of all opening dimensions formed as slots 40 on the inflow surface).
  • the blocked cross-section is 1 mm wide and the cross-section through which the air flows is 2 mm. This means that 66% of the inflow surface is free for the air intake flow to pass through.
  • the lamellar ribs 41 must be made as thin as possible transversely to the direction of flow.
  • FIG. 10 shows a plan view of the cross section of the mechanical separating device 4 from FIG. 8 along the section plane IX-IX located in FIG. 8 with dash-dotted lines.
  • the lamellar ribs 41 In order to achieve good strength of the lamellar ribs 41 at the same time, they have an increasing lamellar rib thickness 43 in the direction of flow.
  • the front edges of the lamellar ribs 41 on the inflow surface and rear edges of the lamellar ribs 41 on the outflow surface are each rounded. For example with a radius of 0.5 mm and 1.0 mm.
  • the lamellar rib spacing 42 located between the lamellar ribs 41 increases from the lamellar rib leading edge on the inflow surface in the direction of flow to the lamellar rib trailing edge on the outflow surface, for example from 2.0 mm to 2.2 mm. This reduces the risk of jamming and clogging caused by small components of waste fractions that can penetrate between the lamellar ribs 41.
  • the lamellar grille can be divided into several units. This division then takes place along the direction of extension of the lamellar ribs 41. Alternatively, the number of lamellar ribs 41 can be increased while at the same time reducing their extension length.
  • the number of lamellar ribs, in this exemplary embodiment 15 pieces, and their extension length depend on the air volume flow of the air intake flow to be conveyed and the amount of waste fractions to be expected. The greater the air volume flow and the amount of material in the waste fractions, the greater the number and length of the lamellar ribs 41 to be selected.
  • the strength of the lamellar ribs can be further increased by a greater thickening and thus an increase in the angle of the fanning-out lamellar ribs (in the present example 2.87 °).
  • the lamellar ribs 41 can also be additionally curved.
  • a bend transversely to the direction of flow can make it easier to remove sucked-in components from waste fractions. Self-cleaning of the lamellar filter can thus be achieved.
  • a bend or curvature of the lamellar ribs 41 about further spatial directions can be carried out in order to adapt to the requirements of the surrounding installation space in the suction unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

L'invention concerne un ensemble d'aspiration portable permettant l'aspiration simultanée de différents fragments de déchets à l'aide d'un flux d'air aspirant, ledit ensemble d'aspiration portable comprenant : • un dispositif soufflante (1) destiné à produire le flux d'air aspirant et • un contenant collecteur de déchets (2), comprenant : – un système à canal d'entrée d'air (21) définissant une direction d'afflux d'air (LE) dans une section de déflexion de flux d'air (3), - un système à canal de sortie d'air (22) définissant une direction de sortie d'air (LA) hors de la section de déflexion de flux d'air (3) et – un volume de contenant collecteur (23) disposé en liaison fluidique entre le système à canal d'entrée d'air (21 ) et le système à canal de sortie d'air (22), le dispositif soufflante (1) étant structurellement couplé au contenant collecteur de déchets (2) de manière telle que le flux d'air aspirant entre dans le volume de contenant collecteur (23) par le système à canal d'entrée d'air (21) et sort du volume de contant collecteur (23) par le système à canal de sortie d'air (22) en parcourant la section de déflexion de flux d'air (3) ; et le système à canal d'entrée d'air (21), le système à canal de sortie d'air (22) et le volume de contenant collecteur (23) sont conçus de manière telle qu'en liaison fluidique entre la direction d'afflux d'air (LE) et la direction d'évacuation d'air (LA), il se produit une déflexion de flux d'air aspirant de plus de 40 degrés dans la section de déflexion de flux d'air (3), ladite déflexion provoquant un triage par inertie-gravité entre les différents fragments de déchets. Selon l'invention, un dispositif de séparation mécanique (4) doté d'une pluralité d'ouvertures internes (40) destinées au flux d'air aspirant entre le système canal d'entrée d'air (21) et le système canal de sortie d'air (22) est disposé de manière telle qu'un fragment de déchet aspiré contre une surface frontale du dispositif de séparation mécanique (4) et retenu par le flux d'air aspirant, aboutit dans le volume de contenant collecteur (22) sous l'effet de la gravité une fois le flux d'air aspirant mis à l'arrêt.
PCT/EP2020/000148 2019-09-06 2020-09-05 Ensemble d'aspiration portable et appareil d'aspiration WO2021043433A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20776068.7A EP4025107A1 (fr) 2019-09-06 2020-09-05 Ensemble d'aspiration portable et appareil d'aspiration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE102019124002.6 2019-09-06
DE102019124002.6A DE102019124002A1 (de) 2019-09-06 2019-09-06 Tragbares Saugaggregat und Sauggerät

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WO2021043433A1 true WO2021043433A1 (fr) 2021-03-11

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EP (1) EP4025107A1 (fr)
DE (1) DE102019124002A1 (fr)
WO (1) WO2021043433A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722701A1 (de) 1987-05-21 1988-12-22 Holger Reith Staubsauger
US5795358A (en) * 1996-08-19 1998-08-18 W. L. Gore & Associates, Inc. Removeable deflector boot for a wet/dry vacuum cleaner
EP0955003A1 (fr) * 1998-05-08 1999-11-10 Alfred Kärcher GmbH & Co. Aspirateur à des fins de nettoyage
DE20006284U1 (de) 2000-04-05 2000-09-07 Tomkiewicz Antoni Wertsachen-Fangvorrichtung
FR2861279A1 (fr) 2003-10-28 2005-04-29 Minh Quang Le Recuperateur de poussiere externe pour aspirateur
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