EP3772309B1 - Aspirateur guidé à la main - Google Patents

Aspirateur guidé à la main Download PDF

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Publication number
EP3772309B1
EP3772309B1 EP20187817.0A EP20187817A EP3772309B1 EP 3772309 B1 EP3772309 B1 EP 3772309B1 EP 20187817 A EP20187817 A EP 20187817A EP 3772309 B1 EP3772309 B1 EP 3772309B1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
planar face
configuration
floor nozzle
separation unit
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
EP20187817.0A
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German (de)
English (en)
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EP3772309A1 (fr
Inventor
Willi Geser
Martin Hanke
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3772309A1 publication Critical patent/EP3772309A1/fr
Application granted granted Critical
Publication of EP3772309B1 publication Critical patent/EP3772309B1/fr
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    • 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
    • A47L5/24—Hand-supported suction cleaners
    • 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
    • A47L5/225—Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners

Definitions

  • the invention relates to a hand-held vacuum cleaner, which is also referred to below as a vacuum cleaner for simplicity.
  • the invention relates to a hand-held vacuum cleaner in the form of a stick vacuum cleaner.
  • Such a vacuum cleaner is sold, for example, under the name “Unlimited” by Robert Bosch Hausmaschine GmbH (Munich, Germany).
  • This vacuum cleaner has a relatively large storage area, which means that the user can easily put it down during a vacuuming break without a suction tube or floor nozzle.
  • the vacuum cleaner is leaned against a wall with the suction tube and floor nozzle, it will easily slip off the wall and tip over.
  • the vacuum cleaner including the floor nozzle and suction tube, is placed in a lying position, the vacuum cleaner can tip over to one side. In the latter two cases, the vacuum cleaner can be damaged. It can also happen that the vacuum cleaner loses suction material due to an unfavorable tilting movement.
  • the CN 105 832 246 A discloses a vacuum cleaner with a handle, a suction tube, a floor nozzle and a separation unit, which has a device body containing a drive unit and a suction container.
  • the handle, the suction tube, the floor nozzle and the separation unit can be connected to one another in a first configuration and in a second configuration.
  • the suction tube is arranged between the separation unit and the handle.
  • the suction pipe is arranged between the floor nozzle and the separation unit in such a way that the suctioned material passes through the suction pipe on the way from the floor nozzle into the suction material container.
  • the vacuum cleaner's suction container also has a planar surface, which allows the vacuum cleaner to be parked.
  • the invention therefore faces the problem of providing a hand-held vacuum cleaner which has optimized stability in a lying position.
  • the vacuum cleaner is stable in the lying position. This means that it does not tip over in the lying position during a vacuum break, which can prevent damage.
  • the vacuum cleaner has several configurations in which it can be set up, and in each configuration it has a lying position in which it is stable. In the respective lying position, the vacuum cleaner lies in a relaxed position in which a plastic material of the vacuum cleaner cannot deform due to creep, as this can reduce the operability of the vacuum cleaner. In addition, suctioned items cannot fall out of the vacuum cleaner if the vacuum cleaner is placed in one of the lying positions.
  • the invention relates to a hand-held vacuum cleaner with a handle, a suction tube, a floor nozzle and a separation unit, which has a device body containing a drive unit and a suction container in order to suck suction material through the floor nozzle into the suction container, the handle, the suction tube, the floor nozzle and the separation unit can be connected to one another in a first (lower) configuration and in a second (upper) configuration, wherein in the first (lower) configuration the suction pipe is arranged between the separation unit and the handle and in the second (upper) configuration the Suction pipe is arranged between the floor nozzle and the separation unit in such a way that the suctioned material passes through the suction pipe on the way from the floor nozzle into the suction material container, the suction material container having a first planar surface which is designed such that the vacuum cleaner, when in a Lying position is arranged on the first planar surface, is stable.
  • the device body has a second planar surface, which is designed such that the vacuum cleaner is stable when it is arranged in a lying position on the second planar surface. This further improves the stability and stability.
  • the first planar surface is preferably formed at one end of the suction container which lies opposite a further end of the suction container, at which the suction container is detachably connected to the device body. Regardless of whether the shape and/or shape of the suction container has, the first planar surface is preferably formed and/or arranged on an outer surface of the suction container opposite an area of the suction container on which the suction container is releasably connected to the suction pipe or the handle , if the vacuum cleaner is set up in the first or second configuration.
  • the first planar surface and the second planar surface are preferably located on one plane. This can further improve the stability of the vacuum cleaner in the lying position.
  • the vacuum cleaner is arranged in a first lying position of the vacuum cleaner, in which it is arranged lying on a surface in the first configuration, such that the floor nozzle rests on the surface and the first planar Surface and the second planar surface and/or an edge of the first planar surface and the second planar surface rests on the ground.
  • the vacuum cleaner is extremely stable when it is removed in the first configuration.
  • the vacuum cleaner preferably rests on a storage point formed by the first planar surface and/or its edge and on a floor nozzle storage point, the vacuum cleaner further having a center of gravity.
  • a distance, which represents a distance between the center of gravity and the floor nozzle storage point, is preferably greater than a further distance, which represents a distance between the center of gravity and the storage point.
  • the storage point is subject to a greater load than the floor nozzle storage point, which further improves stability.
  • the vacuum cleaner is arranged in a second lying position of the vacuum cleaner, in which it is arranged lying on the surface in the second configuration, such that the floor nozzle rests on the surface and an edge of the first planar surface rests on the surface. In this second lying position, the vacuum cleaner is extremely stable when it is removed in the second configuration.
  • the vacuum cleaner preferably rests on a storage point formed by the edge of the first planar surface and on a floor nozzle storage point, with the vacuum cleaner having a center of gravity when assembled in the second configuration.
  • a distance that represents a distance between this center of gravity and the floor nozzle storage point is preferably greater than a further distance that represents a distance between the center of gravity and the storage point.
  • the vacuum cleaner in the first and second configurations each has a center of gravity that is closer to the storage point of the first planar surface than to the floor nozzle storage point. This places greater stress on the first planar surface. As a result, the stability of the vacuum cleaner in the first and second lying positions can be further improved.
  • the first planar surface is preferably shaped in such a way that it does not merge tangentially into a base body of the suction container.
  • An edge of the first planar surface preferably has a distance from the base body that is in the range of 3 to 15 mm, preferably 5 to 12 mm.
  • a protrusion is formed by the distance between the edge of the first planar surface and the base body or its direction of extension.
  • the projection is preferably rectangular. This allows the vacuum cleaner in the second configuration to be hung on a piece of furniture or the like, for example, with the floor nozzle resting against the piece of furniture. The overhang can be placed on the edge of the furniture and supports the vacuum cleaner.
  • a width of the first planar surface is at least 114 of a width or a diameter of the suction container.
  • a width of the second planar surface is at least 114 of a width or a diameter of the device body. This further ensures that the vacuum cleaner is stable in the lying positions. The greater the width of the first planar surface, the more stable the vacuum cleaner becomes.
  • a width of the first planar surface is in the range of 30 to 50%, more preferably 35 to 45%, of a width or a diameter of the suction container. This means that the vacuum cleaner has an aesthetic design.
  • the suction container preferably has a base body in which the suction material is collected, which is cylindrical.
  • the first planar surface and/or the second planar surface are coated with a soft component.
  • a soft component This can either be created directly in injection molding, especially in 2-component injection molding.
  • the soft component is glued to the first planar surface and/or the second planar surface in the form of a sticker.
  • the handle, the floor nozzle and the separation unit can be connected to one another in a third (suction tubeless) configuration, in which the handle and the separation unit are connected to one another without a suction tube and optionally the floor nozzle and the separation unit are connected to one another without a suction tube.
  • the vacuum cleaner is preferably arranged in a third lying position of the vacuum cleaner, in which it is arranged lying on the surface in the third configuration, such that the first planar surface and the second planar surface rest on the surface.
  • the first and second planar surfaces lie in the same plane. This means they are completely in contact with the storage surface.
  • the vacuum cleaner is arranged in a fourth lying position of the vacuum cleaner, in which it is arranged lying on the ground in the third configuration, such that the first planar surface is arranged perpendicular or substantially perpendicular to the ground and that a flattened surface the separation unit rests on the substrate, which is formed perpendicularly or substantially perpendicularly to the first planar surface and to the optional second planar surface. This provides the user with another stable lying position.
  • the vacuum cleaner has an accumulator which is designed to supply the drive unit with power.
  • the accumulator is preferably arranged and designed in such a way that it does not rest on the ground in the lying positions.
  • the vacuum cleaner is preferably designed as a cyclone vacuum cleaner.
  • cyclonic vacuum cleaner is to be understood as meaning a vacuum cleaner that is bagless and vortexes and possible turbulences are generated in an air stream entering the vacuum cleaner, as a result of which the suction material, such as dust particles, are pressed and separated in a predetermined direction due to centrifugal force.
  • the vacuum cleaner preferably has display elements that are arranged and designed in such a way that they are visible in all lying positions. This is easily possible because the vacuum cleaner rests on the first planar surface and/or its edge in the first, second and third lying positions.
  • Fig. 1 shows a side view of a vacuum cleaner according to the invention in a first configuration in a working position.
  • the hand-held vacuum cleaner has a handle 1 with which a user (not shown) can grip and maneuver the vacuum cleaner.
  • the vacuum cleaner has a suction pipe 2, a floor nozzle 3 and a separation unit 4.
  • the separation unit 4 has a device body 41 with a drive unit (not shown) and a suction container 42.
  • the drive unit is integrated into the device body 41 and is designed to generate a suction air flow (not shown) during operation in order to suck suction material through the floor nozzle 3 into the suction material container 42.
  • the vacuum cleaner optionally has an accumulator 7, which is designed to supply the drive unit with energy during operation. In the working position, the vacuum cleaner is arranged on a surface 5 to be vacuumed, so that the floor nozzle 3 contacts it and the user can maneuver it easily.
  • the floor nozzle 3 and the accumulator 7 are each detachably connected to the device body 41 at its lower end, while at its upper end opposite the lower end it is detachably connected to one end of the suction pipe 2 and the suction container 42. At an end that is opposite the end at which the suction tube 2 is connected to the device body 41, the handle 1 is detachably connected to the suction tube 2.
  • the suction container 41 has a first planar surface 421, while the device body 41 has a second planar surface 411. Furthermore, the suction container 42 has a flattened surface 422, which is arranged perpendicularly or substantially perpendicularly to the first planar surface 421 and to the second planar surface 411.
  • Fig. 2 shows a side view of the in Fig. 1 vacuum cleaner shown in a second configuration in a working position.
  • the suction pipe 2 is arranged between the floor nozzle 3 and the separation unit 4 in such a way that the suctioned material (not shown) passes through the suction pipe 2 on the way from the floor nozzle 3 into the suction material container 42.
  • the floor nozzle 3 is detachably connected to one end of the suction tube 2, while the end of the suction tube 2 opposite this end is detachably connected to one end of the device body 41.
  • the optional accumulator 7 is detachably connected to the device body 41.
  • the suction container 42 is detachably connected to the end of the device body 41, which is opposite the end with which it is connected to the suction pipe 2.
  • the handle 1 is detachably connected to the device body 41 and/or the suction container 42. In the working position, the vacuum cleaner is arranged on a surface 5 to be vacuumed, so that the floor nozzle 3 contacts it and the user can maneuver it easily.
  • Fig. 3 shows a side view of the in Fig. 2 shown vacuum cleaner in the third (suction tubeless) configuration in a working position.
  • the in Fig. 3 The vacuum cleaner shown corresponds to the one in Fig. 2 Vacuum cleaner shown with the difference that it has no suction tube or floor nozzle.
  • the handle 1 is detachably connected to the separation unit 4, which is still detachably connected to the optional accumulator 7.
  • the separation unit 4 has a nozzle 412 which is arranged at one end of the device body 41. During operation, suction material is sucked through the nozzle 412 into the suction material container 42.
  • Fig. 4 shows a side view of the in Fig. 1 vacuum cleaner shown in a first lying position.
  • the vacuum cleaner is constructed in the first configuration and lies on the surface 5 in the first lying position, in which the vacuum cleaner is arranged such that the floor nozzle 3 rests on the surface 5 and the first planar surface 421 and/or the second planar surface 411 and/or a Edge (not shown) of the first planar surface 421 and/or the second planar surface 411 rests on the substrate 5.
  • the vacuum cleaner rests on a storage point 424 formed by an edge (not shown) of the first planar surface 421 and on a floor nozzle storage point 31.
  • the vacuum cleaner has a center of gravity 6.
  • a distance a is a distance between the center of gravity 6 and the floor nozzle storage point 31, while a further distance b is a distance between the center of gravity 6 and the storage point 424.
  • the distance a is greater than the further distance b.
  • Fig. 5 shows a perspective view of the in Fig. 4 vacuum cleaner shown.
  • the vacuum cleaner rests on the floor nozzle 3 and the first planar surface 421.
  • the center of gravity (not shown) is such that the vacuum cleaner is stable in the first lying position when assembled in the first configuration.
  • Fig. 6 shows a side view of the in Fig. 2 vacuum cleaner shown in a second lying position.
  • the vacuum cleaner is constructed in the second configuration and is arranged in a second lying position of the vacuum cleaner on the surface 5.
  • the vacuum cleaner In the second lying position, the vacuum cleaner is arranged such that the floor nozzle 3 rests on the surface and an edge (not shown) of the first planar surface rests on the surface.
  • the vacuum cleaner rests on a storage point 424 formed by the edge (not shown) of the first planar surface 421 and on a floor nozzle storage point 31.
  • the vacuum cleaner has a center of gravity 6.
  • a distance a is a distance between the center of gravity 6 and the floor nozzle storage point 31, while a further distance b is a distance between the center of gravity 6 and the storage point 424. The distance a is greater than the further distance b.
  • Fig. 7 shows a perspective view of the in Fig. 6 vacuum cleaner shown.
  • the vacuum cleaner rests on the floor nozzle 3 and the first planar surface 421.
  • the center of gravity (not shown) is such that the vacuum cleaner is stable in the second lying position when constructed in the second configuration.
  • Fig. 8 shows a side view of the in Fig. 3 vacuum cleaner shown in a third lying position.
  • the vacuum cleaner is in the third configuration and rests on the surface 5.
  • the vacuum cleaner is arranged on the surface 5 with the first planar surface 421 and the second planar surface 411.
  • the first planar surface 421 and the second planar surface 411 lie in one plane.
  • Fig. 9 shows a side view of the in Fig. 3 vacuum cleaner shown in a fourth lying position.
  • the vacuum cleaner in the third configuration is arranged lying on the substrate 5 in such a way that the first planar surface 421 is arranged perpendicular or substantially perpendicular to the substrate 5 and that a flattened surface 422 of the separation unit rests on the substrate 5, which is formed perpendicularly or substantially perpendicularly or substantially perpendicularly to the first planar surface 421.
  • Fig. 10 shows another side view of the in Fig. 1, 2 and 3 vacuum cleaner shown.
  • the separation unit 4 has the device body 41 and the suction container 42.
  • the suction container 42 has a cylindrical or substantially cylindrical base body with a diameter D, while the first planar surface 421 has a width B.
  • the width B is 45 mm and therefore approx. 40% of the diameter D, which is 115 mm.
  • Fig. 11 shows further side views of the in Fig. 1 vacuum cleaner shown. Three side views are shown, with the vacuum cleaner being placed on the surface 5 by the user in the first configuration at different angles of inclination.
  • the right and left vacuum cleaners are each arranged on the surface 5 with an angle of inclination ⁇ of 25 ° to a vertical position, which is shown in the middle. Due to the low center of gravity 6 of the vacuum cleaner constructed in the first configuration, the vacuum cleaner can be parked with an angle of inclination ⁇ of 25° or less, as shown on the right and left, with the vacuum cleaner setting itself up into the central position shown by its own weight.
  • Fig. 12 shows further side views of the in Fig. 2 vacuum cleaner shown. Three side views are shown, with the vacuum cleaner being placed on the surface 5 by the user in the second configuration at different angles of inclination.
  • the right and left vacuum cleaners are each arranged on the surface 5 with an inclination angle ⁇ of 20 ° to a vertical position shown in the middle. Due to the higher center of gravity 6 of the vacuum cleaner constructed in the second configuration compared to the first configuration, as can be seen from a synopsis of Fig. 11 and 12
  • the vacuum cleaner can be parked with an angle of inclination ⁇ of 20° or less, as on the right and shown on the left, with the vacuum cleaner setting itself up into the middle position shown due to its own weight.
  • Fig 13 shows a partial view of the in Fig. 2 vacuum cleaner shown in a hanging position.
  • the vacuum cleaner is constructed in the second configuration and hangs on a piece of furniture such as a cupboard 8.
  • the planar surface 421 is shaped in such a way that it does not merge tangentially into the base body (not shown) of the suction container 42.
  • the first planar surface 421 has a distance d from the base body of the suction container 42, which is 8 mm.
  • a rectangular projection 423 is thereby formed.
  • Fig 14 shows a side view of the in Fig. 2 vacuum cleaner shown in the hanging position.
  • the projection 423 is rectangular.
  • the vacuum cleaner hangs on an edge (not shown) of the cabinet 8, with the floor nozzle 3 resting on the cabinet 8.
  • the projection 423 lies on the edge of the cabinet 8 and carries the vacuum cleaner.
  • Partial view shown is marked XIII.

Landscapes

  • Electric Suction Cleaners (AREA)

Claims (11)

  1. Aspirateur guidé à la main comportant une poignée (1), un tube d'aspiration (2), une buse de sol (3) et une unité de séparation (4) qui présente un corps d'appareil (41) contenant un groupe d'entraînement et un récipient à matières à aspirer (42) afin d'aspirer des matières à aspirer à travers la buse de sol (3) dans le récipient à matières à aspirer (42), la poignée (1), le tube d'aspiration (2), la buse de sol (3) et l'unité de séparation (4) pouvant être reliés les uns aux autres dans une première configuration (inférieure) et dans une deuxième configuration (supérieure), dans la première configuration (inférieure), le tube d'aspiration (2) étant disposé entre l'unité de séparation (4) et la poignée (1) et, dans la deuxième configuration (supérieure), le tube d'aspiration (2) étant disposé entre la buse de sol (3) et l'unité de séparation (4) de manière telle que les matières à aspirer aspirées passent, sur le trajet de la buse de sol (3) vers le récipient à matières à aspirer (42), dans le tube d'aspiration (2), le récipient à matières à aspirer (42) présentant une première face planaire (421) qui est réalisée de manière telle que l'aspirateur, lorsqu'il est disposé dans une position couchée sur la première face planaire (421), est stable,
    caractérisé en ce que l'aspirateur, dans une première position couchée de l'aspirateur, dans laquelle il est disposé de manière couchée sur une surface (5) dans la première configuration, est disposé de manière telle que la buse de sol (3) et la première face planaire (421) reposent sur la surface (5).
  2. Aspirateur selon la revendication 1, caractérisé en ce que le corps d'appareil (41) présente une seconde face planaire (411) qui est réalisée de manière telle que l'aspirateur, lorsqu'il est disposé dans une position couchée sur la seconde face planaire (411), est stable.
  3. Aspirateur selon la revendication 2, caractérisé en ce que la première face planaire (411) et la seconde face planaire (421) se situent sur un plan.
  4. Aspirateur selon l'une des revendications précédentes,
    caractérisé en ce que l'aspirateur, dans une première position couchée de l'aspirateur, dans laquelle il est disposé de manière couchée sur une surface (5) dans la première configuration, est disposé de manière telle que la buse de sol (3) repose sur la surface (5) et la première face planaire (421) et la seconde face planaire (411) et/ou un bord de la première face planaire (421) et de la seconde face planaire (411) reposent sur la surface (5).
  5. Aspirateur selon l'une des revendications précédentes,
    caractérisé en ce que l'aspirateur, dans une deuxième position couchée de l'aspirateur, dans laquelle il est disposé de manière couchée sur la surface (5) dans la deuxième configuration, est disposé de manière telle que la buse de sol (3) repose sur la surface (5) et un bord de la première face planaire (421) repose sur la surface (5).
  6. Aspirateur selon l'une des revendications précédentes,
    caractérisé en ce qu'une largeur de la première face planaire (421) représente au moins 114 d'une largeur ou d'un diamètre (D) du récipient à matières à aspirer (42) et/ou une largeur de la seconde face planaire (411) représente au moins 114 d'une largeur ou d'un diamètre du corps d'appareil (41).
  7. Aspirateur selon l'une des revendications précédentes,
    caractérisé en ce que la première face planaire (421) et/ou la seconde face planaire (411) sont revêtues d'un composant souple.
  8. Aspirateur selon l'une des revendications précédentes,
    caractérisé en ce que la poignée (1), la buse de sol (3) et l'unité de séparation (4) peuvent être reliées les unes aux autres dans une troisième configuration (sans tube d'aspiration), dans laquelle la poignée (1) et l'unité de séparation (4) sont reliées l'une à l'autre sans tube d'aspiration et, éventuellement, la buse de sol (3) et l'unité de séparation (4) sont reliées l'une à l'autre sans tube d'aspiration.
  9. Aspirateur selon la revendication 8, caractérisé en ce que l'aspirateur, dans une troisième position couchée de l'aspirateur, dans laquelle il est disposé de manière couchée sur la surface (5) dans la troisième configuration, est disposé de manière telle que la première face planaire (421) et la seconde face planaire (411) reposent sur la surface (5).
  10. Aspirateur selon la revendication 8 ou 9, caractérisé en ce que l'aspirateur, dans une quatrième position couchée de l'aspirateur, dans laquelle il est disposé de manière couchée sur la surface (5) dans la troisième configuration, est disposé de manière telle que la première face planaire (421) est disposée de manière perpendiculaire ou sensiblement perpendiculaire par rapport à la surface (5) et en ce qu'une face aplanie (422) de l'unité de séparation (4) repose sur la surface (5), laquelle face aplanie est réalisée de manière perpendiculaire ou sensiblement perpendiculaire par rapport à la première face planaire (421).
  11. Aspirateur selon l'une des revendications précédentes,
    caractérisé en ce qu'une saillie, laquelle est réalisée entre la première face planaire (421) et un corps de base du récipient à matières à aspirer (42) ou sa direction d'extension, est à angle droit.
EP20187817.0A 2019-08-09 2020-07-27 Aspirateur guidé à la main Active EP3772309B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019121539 2019-08-09
DE102019123101 2019-08-28

Publications (2)

Publication Number Publication Date
EP3772309A1 EP3772309A1 (fr) 2021-02-10
EP3772309B1 true EP3772309B1 (fr) 2023-09-13

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EP20187817.0A Active EP3772309B1 (fr) 2019-08-09 2020-07-27 Aspirateur guidé à la main

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Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105832246B (zh) * 2015-01-13 2019-01-15 科沃斯机器人股份有限公司 真空吸尘器

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