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US20190343350A1 - Self-moving ground processing apparatus and suction nozzle - Google Patents

Self-moving ground processing apparatus and suction nozzle Download PDF

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Publication number
US20190343350A1
US20190343350A1 US16/348,441 US201716348441A US2019343350A1 US 20190343350 A1 US20190343350 A1 US 20190343350A1 US 201716348441 A US201716348441 A US 201716348441A US 2019343350 A1 US2019343350 A1 US 2019343350A1
Authority
US
United States
Prior art keywords
sealing strip
front sealing
suction port
self
processing apparatus
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.)
Pending
Application number
US16/348,441
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English (en)
Inventor
Shaojiang LI
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.)
Ecovacs Robotics Suzhou Co Ltd
Original Assignee
Ecovacs Robotics Suzhou Co Ltd
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 Ecovacs Robotics Suzhou Co Ltd filed Critical Ecovacs Robotics Suzhou Co Ltd
Assigned to ECOVACS ROBOTICS CO., LTD. reassignment ECOVACS ROBOTICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LI, Shaojiang
Publication of US20190343350A1 publication Critical patent/US20190343350A1/en
Pending legal-status Critical Current

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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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • 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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
    • 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
    • A47L9/02—Nozzles
    • 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
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0666—Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Definitions

  • the present disclosure relates to a self-moving ground processing apparatus and a suction nozzle.
  • FIG. 1 and FIG. 2 are the first and the second schematic diagrams of a bottom structure of a suction nozzle in an existing cleaning system respectively.
  • the suction port sealing structure in the existing cleaning system mainly includes two types.
  • an advancing direction of the cleaning system during the operation process is set as a forward direction, i.e., the direction A in FIG. 1
  • a forward direction i.e., the direction A in FIG. 1
  • the rear, left and right sides of the suction port 100 are sealed by soft rubber strips 200 , and the front end of the suction port 100 is open.
  • the vacuum suction loss is large, and the dust removal effect is poor.
  • FIG. 2 in another sealing structure of the suction port, the perimeter of the suction port is sealed, and a hard material is used to seal the front end of the suction port, on which a notch 300 is formed for sucking coarse particles.
  • the apparatus having this structure has a large movement resistance and cannot suck large particles.
  • sealing strips are often arranged around the suction port on the bottom of the existing cleaning system for improving the vacuum degree of the suction port.
  • the front sealing strip will also push large-particle dust in front of the suction port forward along with the forward movement of the suction port, which will also affect the working efficiency of the cleaning system.
  • FIG. 3 is a schematic diagram of the overall structure of the cleaner disclosed in CN 101522459B.
  • a suction nozzle with a suction port on its bottom the sealing strip on the front side of the suction port is provided with an opening 15 which can be completely or partially closed.
  • the opening 15 is closed, a large vacuum degree at the suction opening is maintained.
  • the opening 15 is opened, thereby sucking coarse dirt.
  • the suction port has two major disadvantages. Firstly, an adjustment apparatus is necessary for adjusting the opening or closing of the opening on the front sealing strip. Secondly, when the opening on the front sealing strip is opened, the vacuum degree of the suction port is reduced, and the dust suction efficiency is reduced.
  • the technical problem to be solved by the present disclosure is to provide a self-moving ground processing apparatus and a suction nozzle, where, the perimeter of a suction port on the suction nozzle is sealed, so that the vacuum suction force in the suction port is improved, and the dust removal capacity of the self-moving ground processing apparatus is improved thereby.
  • the arrangement direction, shape and material of the front sealing strip ensure that large-particle dust can be effectively sucked, the vacuum degree of the suction port is maintained, and the dust removal efficiency is high.
  • a self-moving ground processing apparatus includes at least an apparatus main body and a suction nozzle coupled to the apparatus main body, where, a suction port is formed on the bottom of the suction nozzle, an advancing direction of the suction nozzle during the operation process is set as a forward direction, a front sealing strip is arranged on the front side of the suction port, the front sealing strip includes a fixed end and a free end, the front sealing strip is made of a flexible material, and the front sealing strip is arranged to deviate from the forward direction, so that a projection of the fixed end on a working surface is positioned before a projection of the free end on the working surface.
  • the front sealing strip is arranged on the front side of the suction port through the fixed end.
  • a thickness of the fixed end is less than a thickness of the free end.
  • the thickness of the front sealing strip is less than or equal to 1.8 mm.
  • the front sealing strip may be arc-shaped as desired.
  • a rolling brush is mounted at the suction port of the suction nozzle, to ensure the dust removal effect and the compact structure of the suction nozzle, and make the front sealing strip and the rolling brush not interfere with each other, the front sealing strip and the rolling brush are concentrically arranged.
  • a suction port cover plate is mounted on the bottom of the suction nozzle, the suction port is formed in the middle of the suction port cover plate, which includes a left side cover and a right side cover arranged on the left side and the right side respectively, each cover includes a inclined portion on the front side and a planar portion on the rear side.
  • a contact point of the free end of the front sealing strip with the working surface is located at or behind the foremost end of the planar portion.
  • the left side cover and the right side cover of the suction port cover plate are cover with a soft cushion is covered on.
  • a plurality of gaps are formed on the front sealing strip at intervals.
  • the width of the gaps is less than or equal to 5 mm.
  • the length of the gaps is the same as the longitudinal length of the front sealing strip.
  • the length of the gaps is set to be greater than 3 mm, so that the front sealing strip can roll over most large-particle dust, for example, rice grains or the like.
  • a plurality of notches can be formed on the front sealing strip at intervals.
  • the length of the front sealing strip is greater than the height of the fixed end from the working surface, so that when the suction nozzle works, the free end of the front sealing strip abuts against the working surface.
  • the height of the free end of the front sealing strip from the working surface is less than or equal to 1.5 mm.
  • the present disclosure further provides a suction nozzle with a suction port formed on its bottom, where, an advancing direction of the suction nozzle during the operation process is set as a forward direction, a front sealing strip is arranged on the front side of the suction port, the front sealing strip includes a fixed end and a free end, the front sealing strip is made of a flexible material, and the front sealing strip is arranged to deviate from the forward direction, so that a projection of the fixed end on a working surface is positioned before a projection of the free end on the working surface.
  • the present disclosure provides a self-moving ground processing apparatus and a suction nozzle, where the perimeter of the suction port on the suction nozzle is sealed, so that the vacuum suction in the suction port is improved, and the dust removal capability of the self-moving ground processing apparatus is improved thereby.
  • Due to the arrangement mode of the front sealing strip the projection of the fixed end of the front sealing strip on the working surface is positioned before the projection of the free end on the working surface, and the front sealing strip is made of a flexible material, when the front sealing strip comes into contact with large-particle dirt during the operation process, the front sealing strip is easier to bend to roll over the large-particle dirt.
  • the large-particle dirt can quickly pass over the front sealing strip and enter the suction port and be brought into a dust box under the action of the rolling brush and/or the vacuum suction force, so that the dust removal operation is completed. Therefore, in the present disclosure, large-particle dust can be effectively sucked, the vacuum degree of the suction port can be maintained, and the dust removal efficiency is high.
  • FIG. 1 is a first schematic diagram of a bottom structure of a suction nozzle in an existing cleaning system
  • FIG. 2 is a second schematic diagram of the bottom structure of the suction nozzle in an existing cleaning system
  • FIG. 3 is a schematic diagram of an overall structure of the cleaner disclosed in CN 101522459B;
  • FIG. 4 is a schematic diagram of a bottom structure of a suction nozzle according to the present disclosure.
  • FIG. 5 is a schematic diagram of a side structure of the suction nozzle according to the present disclosure.
  • FIG. 6 is a schematic diagram of a bottom structure of a suction nozzle according to the present disclosure.
  • FIG. 7 is a schematic diagram of a front structure of the suction nozzle according to the present disclosure.
  • FIG. 8 is a schematic diagram of a bottom structure of a suction nozzle according to the present disclosure.
  • FIG. 9 is a schematic structure diagram of a front sealing strip according to the present disclosure.
  • FIG. 4 is a schematic diagram of a bottom structure of a suction nozzle according to the present disclosure
  • FIG. 5 is a schematic diagram of a side structure of the suction nozzle according to the present disclosure.
  • the present disclosure provides a self-moving ground processing apparatus, including at least an apparatus main body (not shown) and a suction nozzle 1000 coupled to it.
  • a suction port 100 is formed on the bottom of the suction nozzle 1000 .
  • the direction A in FIG. 4 and FIG. 5 is an advancing direction of the suction nozzle 1000 during the operation process, and the advancing direction is set as a forward direction.
  • a front sealing strip 1003 and a rear scraping strip 1002 are arranged on the front side and the rear side of the suction port 100 respectively.
  • the front sealing strip 1003 is arc-shaped and includes a fixed end 10031 and a free end 10032 .
  • the front sealing strip 1003 is arranged on the front side of the suction port 100 through the fixed end 10031 .
  • the front sealing strip 1003 is made of a flexible material, and is made of TPU, TPE, silica gel, PUC or other materials, so that a good elastic deformation capability of the front sealing strip is ensured.
  • the front sealing strip 1003 is arranged to deviate from the forward direction, so that the projection of the fixed end 10031 on a working surface B is positioned before the projection of the free end 10032 on the working surface B.
  • the front sealing strip 1003 is designed to be arc-shaped, with its free end 1032 being deviated toward the suction port 100 .
  • the front sealing strip it is also possible to design the front sealing strip as an inclined plane. Additionally or alternatively, if it is assumed that the front sealing strip 1003 is a straight inclined plane, that is, the arrangement direction of the formed inclined plane is inclined with respect to the working surface B, and the included angle between the inclined plane and the working surface B may set as about 30° to 45°.
  • the front sealing strip When the self-moving ground processing apparatus travels forward, due to the fact that the front sealing strip itself is arranged backward, for example, the arc shape or the inclined plane, when the free end of the front sealing strip comes into contact with large-particle dust (such as a cigarette end), the front sealing strip is easily lifted up to roll over the large-particle dust, facilitating the large-particle dust entering the suction port, and then entering a dust box under the action of the rolling brush and/or vacuum suction force and being stored therein.
  • large-particle dust such as a cigarette end
  • the thickness of the front sealing strip should not be too large.
  • the thickness is less than or equal to 1.8 mm. If the thickness of the front sealing strip is too large, the front sealing strip cannot deform when coming into contact with large-particle dust, and will in turn push the large-particle dust forward which prevents the large-particle dust from entering the suction port.
  • the fixed end 10031 is made even thinner, for example, the fixed end 10031 is thinned, the front sealing strip is easier to deform.
  • FIG. 9 is a schematic structure diagram of a front sealing strip according to the present disclosure. For example, in the embodiment shown in FIG.
  • the thickness of the fixed end 10031 is 0.6 mm to 0.8 mm, and the thickness of the front sealing strip 1003 elsewhere is 0.8 mm to 1.8 mm Meanwhile, the fixed end 10031 is thinned slightly (for example, forming a small groove at the fixed end), so other locations of the front sealing strip 1003 may be thicker slightly, greatly increasing the range of materials selected for the front sealing strip.
  • a suction port cover plate 1001 is generally mounted on the bottom of the suction nozzle 1000 , the suction port 100 is formed in the middle of the suction port cover plate 1001 , and the suction port cover plate 1001 includes a left side cover and a right side cover (not shown) arranged on the left side and the right side respectively.
  • each cover includes an inclined portion 10011 on the front side and a planar portion 10012 on the rear side.
  • a contact point of the free end 10032 of the front sealing strip 1003 with the working surface B is located at or behind the foremost end of the planar portion 10012 , that is, there is a small clearance between the front sealing strip and the planar portion, so that the vacuum degree at the suction port is improved.
  • the left side cover and the right side cover of the suction port cover plate 1001 are covered with a soft cushion.
  • the longitudinal length of the front sealing strip 1003 (the cleaning width direction of the front sealing strip along the suction port is set as a transverse direction and the cleaning width direction of the suction port is perpendicular to the advancing direction A) is greater than the height of the fixed end 10031 from the working surface B, so that when the suction nozzle 1000 is in operation, the free end 10032 of the front sealing strip 1003 abuts against the working surface B. Meanwhile, when the tip of the free end is abraded by friction with the working surface in the long-term operation process, the free end still possesses an enough reserved length for maintaining the sealing, and the service life of the front sealing strip is obviously prolonged.
  • the operation process of the suction nozzle 1000 is as follows: during the operation process of the self-moving ground processing apparatus with the suction nozzle 1000 , the suction port cover plate 1001 abuts against the working surface B and walks along with the self-moving ground processing apparatus, the rear of the suction port 100 is sealed by the rear scraping strip 1002 abutting against the ground, the left side and the right side are sealed by the hard plane of the suction port cover plate 1001 , i.e., the planar portion 10012 , or by the soft cushion (not shown) on the left side cover and right side cover of the suction port cover plate 1001 , and the front end of the suction port 100 is sealed by the front sealing strip 1003 .
  • the vacuum degree at the suction opening is improved, and the dust removal capability of the self-moving ground processing apparatus is improved thereby. Due to the facts that the front sealing strip 1003 is arranged backward, and the front sealing strip 1003 is made of a flexible material and the front sealing strip 1003 is arc-shaped, during the operation process, when the front sealing strip 1003 comes into contact with large-particle dirt, the front sealing strip 1003 is deformed due to the mutual extrusion. Meanwhile, the arc shape is easier to bend to roll over large-particle dirt under extrusion, and the large-particle dirt can pass over the front sealing strip 1003 and enter the suction port 100 .
  • the present disclosure can effectively suck large-particle dust and maintain the vacuum degree of the suction port.
  • a rolling brush (not shown) is arranged in the suction port.
  • the rolling brush can be concentrically arranged with the front sealing strip 1003 , so that the rolling brush and the front sealing strip 1003 will not interfere with each other during the operation process.
  • FIG. 6 is a schematic diagram of a bottom structure of a suction nozzle according to the present disclosure
  • FIG. 7 is a schematic diagram of a front structure of the suction nozzle according to the present disclosure.
  • the deformation capability of the front sealing strip may be adjusted by adjusting the arrangement mode of the front sealing strip 1003 .
  • a plurality of gaps 1004 are formed at intervals on the front sealing strip 1003 .
  • the width of each gap 1004 is less than or equal to 5 mm. If the width of the gaps is too large, the vacuum degree at the suction port will be obviously reduced. Meanwhile, the length of the gaps 1004 is substantially the same as the longitudinal length of the front sealing strip 1003 , so that the deformation capability of the front sealing strip is further improved.
  • the length of the gaps can be flexibly set according to the size of large particles on the working surface. For example, if the length of the gaps is set to be greater than 3 mm (the diameter of particles such as rice grains is usually 3 mm) and less than the longitudinal length of the front sealing strip, the front sealing strip has a good cleaning effect in a working environment without too large dust particles.
  • FIG. 8 is a schematic diagram of a bottom structure of a suction nozzle according to the present disclosure. Additionally or alternatively, as shown in FIG. 8 , to improve the deformation capability of the front sealing strip 1003 , a plurality of notches 1005 are formed on the front sealing strip 1003 at intervals. However, the notches are generally greater than 1 cm, which are larger than the gaps in the above-described embodiments and have slightly worse sealing effect.
  • the present disclosure further provides a suction nozzle 1000 with a suction port 100 formed on its bottom.
  • the advancing direction A of the suction nozzle during the operation process is set as a forward direction.
  • a front sealing strip 1003 is provided on the front side of the suction port 100 .
  • the front sealing strip 1003 includes a fixed end 10031 and a free end 10032 .
  • the front sealing strip is made of a material, and the front sealing strip is arranged to deviate from the forward direction, so that a projection of the fixed end 10031 on the working surface B is positioned before a projection of the free end 10032 on the working surface B.
  • the present disclosure provides a self-moving ground processing apparatus and a suction nozzle, where the perimeter of the suction port on the suction nozzle is sealed, so that the vacuum suction in the suction port is improved, and the dust removal capability of the self-moving ground processing apparatus is improved thereby.
  • Due to the arrangement mode of the front sealing strip the projection of the fixed end of the front sealing strip on the working surface is positioned before the projection of the free end on the working surface, and the front sealing strip is made of a flexible material. When the front sealing strip comes into contact with large-particle dirt during the operation process, the front sealing strip is easier to bend to roll over the large-particle dirt.
  • the large-particle dirt can quickly pass over the front sealing strip and enter the suction port and be brought into a dust box under the action of the rolling brush and/or the vacuum suction force, so that the dust removal operation is completed.
  • large-particle dust can be effectively sucked, the vacuum degree of the suction port can be maintained, and the dust removal efficiency is high.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
US16/348,441 2016-11-08 2017-11-08 Self-moving ground processing apparatus and suction nozzle Pending US20190343350A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201610996824.8 2016-11-08
CN201610996824.8A CN108056703A (zh) 2016-11-08 2016-11-08 自移动地面处理装置及吸嘴
PCT/CN2017/109938 WO2018086533A1 (zh) 2016-11-08 2017-11-08 自移动地面处理装置及吸嘴

Publications (1)

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US20190343350A1 true US20190343350A1 (en) 2019-11-14

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US16/348,441 Pending US20190343350A1 (en) 2016-11-08 2017-11-08 Self-moving ground processing apparatus and suction nozzle

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US (1) US20190343350A1 (zh)
EP (1) EP3539435A4 (zh)
CN (1) CN108056703A (zh)
WO (1) WO2018086533A1 (zh)

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FR3094623B1 (fr) * 2019-04-05 2022-12-16 Seb Sa Suceur d’aspirateur pourvu d’une nervure de grattage arrière
CN112021986B (zh) * 2020-08-27 2022-04-29 追觅创新科技(苏州)有限公司 一种手持吸尘器
CN114271740A (zh) * 2021-12-20 2022-04-05 添可智能科技有限公司 清洁设备及清洁方法
CN119302566B (zh) * 2023-07-13 2025-12-12 宁波方太厨具有限公司 一种用于清洁机的地刷模块及清洁机

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EP3539435A1 (en) 2019-09-18
WO2018086533A1 (zh) 2018-05-17
CN108056703A (zh) 2018-05-22

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