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EP3199081B1 - Manchon a entree parallele - Google Patents

Manchon a entree parallele Download PDF

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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
Authority
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.)
Active
Application number
EP16152661.1A
Other languages
German (de)
English (en)
Other versions
EP3199081A1 (fr
Inventor
Xaver HANSLMEIER
Svenja Müller
John Van Taack-Trakranen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP16152661.1A priority Critical patent/EP3199081B1/fr
Publication of EP3199081A1 publication Critical patent/EP3199081A1/fr
Application granted granted Critical
Publication of EP3199081B1 publication Critical patent/EP3199081B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (8)

  1. Tête d'aspiration (2) pouvant être raccordée à un aspirateur (1) qui est notamment approprié pour aspirer un fluide (F) et pour le stocker dans un réservoir de stockage (3), contenant une ouverture d'entrée d'aspiration (8) avec au moins une première portion d'entrée partielle (12), une deuxième portion d'entrée partielle (13) ainsi qu'une troisième portion d'entrée partielle (14), la première portion d'entrée partielle (12) étant raccordée au moyen de la deuxième portion d'entrée partielle (13) à la troisième portion d'entrée partielle (14) de telle sorte qu'un fluide (F) aspiré par l'aspirateur (1) s'écoule successivement à travers la première, la deuxième et la troisième portion d'entrée partielle (12, 13, 14) jusqu'au réservoir de stockage (3), un axe médian longitudinal (R) de la troisième portion d'entrée partielle (14) étant disposé essentiellement horizontalement de telle sorte que le fluide (F) s'écoule essentiellement horizontalement hors de la troisième portion d'entrée partielle (14) dans le réservoir de stockage (3),
    une ouverture d'entrée (12a) de la première portion d'entrée partielle (12) étant positionnée au niveau de la tête d'aspiration (2) pouvant être placée sur le réservoir de stockage (3),
    caractérisée en ce que l'axe médian longitudinal (R) de la troisième portion d'entrée partielle (14) et un axe médian longitudinal (M) de la première portion d'entrée partielle (12) sont situés dans un plan.
  2. Ouverture d'entrée d'aspiration (8) selon la revendication 1,
    caractérisée en ce que la première portion d'entrée partielle (12) ainsi que la troisième portion d'entrée partielle (14) sont positionnées l'une par rapport à l'autre de telle sorte que l'axe médian longitudinal (M) de la première portion d'entrée partielle (12) et l'axe médian longitudinal (R) de la troisième portion d'entrée partielle (14) soient disposés essentiellement parallèlement l'un à l'autre.
  3. Ouverture d'entrée d'aspiration (8) selon la revendication 1,
    caractérisée en ce que la première portion d'entrée partielle (12) ainsi que la troisième portion d'entrée partielle (14) sont positionnées l'une par rapport à l'autre de telle sorte que l'axe médian longitudinal (M) de la première portion d'entrée partielle (12) et l'axe médian longitudinal (R) de la troisième portion d'entrée partielle (14) soient disposés essentiellement suivant un angle aigu l'un par rapport à l'autre.
  4. Ouverture d'entrée d'aspiration (8) selon au moins l'une quelconque des revendications 1 à 3,
    caractérisée en ce qu'entre la première portion d'entrée partielle (12) et la deuxième portion d'entrée partielle (13) est prévue une première portion courbe (15) et entre la deuxième portion d'entrée partielle (13) et la troisième portion d'entrée partielle (14) est prévue une deuxième portion courbe (16).
  5. Ouverture d'entrée d'aspiration (8) selon au moins l'une quelconque des revendications 1 à 4,
    caractérisée en ce que la deuxième portion d'entrée partielle (13) et la troisième portion d'entrée partielle (14) sont configurées de telle sorte que dans le cas d'un agencement vertical de la deuxième portion d'entrée partielle (13) et dans le cas d'un agencement horizontal de la troisième portion d'entrée partielle (14), la surface en section transversale (A) de la deuxième portion d'entrée partielle (13) et la surface en section transversale (B) de la troisième portion d'entrée partielle (14) se recoupent sur 15 % à 25 %, en particulier sur 20 %.
  6. Ouverture d'entrée d'aspiration (8) selon au moins l'une quelconque des revendications 1 à 5,
    caractérisée en ce qu'au niveau d'une ouverture de sortie (14a) de la troisième portion d'entrée partielle (14) est prévue une portion de prolongement cylindrique (17), la portion de prolongement (17) étant disposée essentiellement horizontalement.
  7. Ouverture d'entrée d'aspiration (8) selon au moins l'une quelconque des revendications 1 à 5,
    caractérisée en ce qu'au niveau d'une ouverture de sortie (14a) de la troisième portion d'entrée partielle (14) est prévue une portion de prolongement en forme de plaque (18), la portion de prolongement (18) étant disposée essentiellement horizontalement et à une extrémité inférieure (14b) de la troisième portion d'entrée partielle (14).
  8. Ouverture d'entrée d'aspiration (8) selon au moins l'une quelconque des revendications 1 à 7,
    caractérisée en ce qu'un renfoncement (20) est prévu au niveau d'un côté intérieur (19) de la deuxième portion courbe (16).
EP16152661.1A 2016-01-26 2016-01-26 Manchon a entree parallele Active EP3199081B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16152661.1A EP3199081B1 (fr) 2016-01-26 2016-01-26 Manchon a entree parallele

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16152661.1A EP3199081B1 (fr) 2016-01-26 2016-01-26 Manchon a entree parallele

Publications (2)

Publication Number Publication Date
EP3199081A1 EP3199081A1 (fr) 2017-08-02
EP3199081B1 true EP3199081B1 (fr) 2021-04-07

Family

ID=55236260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16152661.1A Active EP3199081B1 (fr) 2016-01-26 2016-01-26 Manchon a entree parallele

Country Status (1)

Country Link
EP (1) EP3199081B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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 (fr) * 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3199081A1 (fr) 2017-08-02

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