WO2021201781A1 - Mécanisme pour dispositif de nettoyage ou de distribution de liquide et son procédé de fonctionnement - Google Patents

Mécanisme pour dispositif de nettoyage ou de distribution de liquide et son procédé de fonctionnement Download PDF

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Publication number
WO2021201781A1
WO2021201781A1 PCT/SG2021/050183 SG2021050183W WO2021201781A1 WO 2021201781 A1 WO2021201781 A1 WO 2021201781A1 SG 2021050183 W SG2021050183 W SG 2021050183W WO 2021201781 A1 WO2021201781 A1 WO 2021201781A1
Authority
WO
WIPO (PCT)
Prior art keywords
modules
support structure
rotation
module
axle
Prior art date
Application number
PCT/SG2021/050183
Other languages
English (en)
Inventor
Daniel Leong
Rayner Renyi TAN
Yan Zhi TAN
Chee Meng Chew
Original Assignee
National University Of Singapore
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 National University Of Singapore filed Critical National University Of Singapore
Publication of WO2021201781A1 publication Critical patent/WO2021201781A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/0227—Rollers ; Hand tools comprising coating rollers or coating endless belts comprising several coating rollers
    • B05C17/023—Rollers ; Hand tools comprising coating rollers or coating endless belts comprising several coating rollers all of them having parallel axises
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/024—Rollers ; Hand tools comprising coating rollers or coating endless belts the coating roller being motor driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/0245—Accessories

Definitions

  • the present invention relates broadly, but not exclusively, to mechanisms capable of different modes of operation.
  • An aspect of the present disclosure provides mechanism comprising a support structure capable of rotating; and a plurality of modules being rotatably mounted on the support structure, each of the plurality of modules having a configurable mode of operation; wherein at least two modules have any one of identical, similar or different modes of operation.
  • the mechanism may further comprise an axle of rotation supporting at least one of the plurality of modules, and the axle of rotation may be linear or non-linear. Alternatively or in addition, the axle of rotation may be rigid or flexible.
  • the support structure may comprise one or more plates.
  • Sizes and/or positions of the plurality of modules on the support structure may be selected such that a total circumferential length of the plurality of modules may be greater than a circumferential length of a shape circumscribing the plurality of modules.
  • Each of the plurality of modules may have a degree of rotation, and the degree of rotation of each of the plurality of modules may be relative to the support structure.
  • One module may have a direction of rotation and/or a speed of rotation different from that of another module.
  • one module may comprise a shape and/or a size and/or a material different from that of another module.
  • Each of the plurality of modules may extend laterally outward relative to an outer edge of the support structure.
  • the mechanism may further comprise an actuator configured to rotate the support structure; and a plurality of axles mounted on the support structure, and each of the plurality of modules may be freely rotatable about a respective axle.
  • the mechanism may further comprise an actuator configured to rotate the support structure, and a gear set configured to transfer a rotation of the support structure into a rotation of at least one of the plurality of modules.
  • the mechanism may further comprise a plurality of actuators, each of the plurality of actuators configured to independently rotate a respective one of the support structure and the plurality of modules.
  • Another aspect of the present provides a mechanism comprising: a support structure; and a plurality of roller modules rotatably mounted on the support structure, wherein one roller module of the plurality of roller modules is configured to perform a function different from that of another roller module.
  • a liquid distribution device and a cleaning device comprising the mechanism as described.
  • Another aspect of the present disclosure provides an operating method comprising providing a mechanism comprising a support structure and a plurality of modules rotatably being mounted on the support structure, each of the plurality of modules having a configurable mode of operation; and operating the mechanism to rotate the plurality of modules such that at least two modules have any one of identical, similar or different modes of operation.
  • Providing the mechanism may comprise providing an axle of rotation supporting at least one of the plurality of modules, and the axle of rotation may be linear or non-linear. Alternatively or in addition, the axle of rotation may be rigid or flexible.
  • the support structure may comprise one or more plates.
  • Providing the mechanism may comprise selecting sizes and/or positions of the plurality of modules on the support structure such that a total circumferential length of the plurality of modules may be greater than a circumferential length of a shape circumscribing the plurality of modules.
  • Each of the plurality of modules may have a degree of rotation, and the degree of rotation of each of the plurality of modules may be relative to the support structure.
  • Providing the mechanism may comprise mounting one module comprising a shape and/or a size and/or a material different from that of another module on the support structure.
  • Providing the mechanism may comprise mounting the plurality of modules on the support structure such that each of the plurality of modules may extend laterally outward relative to an outer edge of the support structure.
  • Operating the mechanism may comprise rotating one module in a direction of rotation and/or at a speed of rotation different from that of another module.
  • the plurality of modules may be freely rotatable about respective axles mounted on the support structure, and operating the mechanism may comprise operating an actuator to rotate the support structure.
  • At least one module of the plurality of modules may be connected to the support structure by a gear set, and operating the mechanism may comprise operating an actuator to rotate the support structure, and transferring a rotation of the support structure into a rotation of the at least one module via the gear set.
  • Operating the mechanism may comprise operating a plurality of actuators to independently rotate a respective one of the support structure and the plurality of roller modules.
  • Figure 1 shows a schematic diagram of a mechanism according to an example embodiment.
  • Figures 2A-2D show example implementations of the mechanism of Figure 1.
  • Figure 3 shows a table comparing different roller implementations and corresponding increases in surface area.
  • Figure 4 shows example roller shapes suitable for the mechanism of Figure 1.
  • Figures 5A-5D show alternate embodiments of the mechanism of Figure 1.
  • Figures 6A-6C show example actuator implementations for the mechanism.
  • Figures 7A-7B show example implementations of integration of the mechanism of Figure 1 with other devices.
  • Figure 8 shows a flow chart illustrating an operating method according to an example embodiment.
  • the present disclosure provides a mechanism that can maximize surface contact.
  • the mechanism can advantageously allow an increase in surface contact as compared to a conventional roller device of the same size.
  • the present mechanism also allows a combination of different modules to be used concurrently, which may ensure that operations are carried out effectively and efficiently.
  • the mechanism as described may be used in different operations and applications, for example cleaning, painting, etc. It can also be used in applications where operations are tedious and/or time consuming.
  • the present mechanism can be adapted to either a handheld device, or to a robot or an automation system.
  • FIG. 1 shows a schematic diagram of a mechanism 100 according to an example embodiment.
  • the mechanism 100 includes a support structure 102 which is capable of rotating, and a plurality of modules 104a, 104b, 104c which are rotatably mounted on the support structured 102.
  • Each of the plurality of modules 104a, 104b, 104c has a configurable mode of operation such that, in use, at least two modules may have any one of identical, similar or different modes of operation.
  • Each of the plurality of modules 104a, 104b, 104c has a degree of rotation, and the degree of rotation of each of the plurality of modules 104a, 104b, 104c is relative to the support structure 102.
  • the arrows represent the rotations of the support structure 102 and module 104a.
  • the direction of rotation of the modules 104a, 104b, 104c can vary depending on design and practical considerations, and is not restricted to the direction shown in the figure.
  • the module 104a and the support structure 102 may rotate anti-clockwise as shown in Figure 1
  • the modules 104b, 104c may rotate clockwise.
  • one module e.g. 104a
  • modules 104a, 104b, 104c can be seen in Figure 1 , each having four rollers 106, it will be appreciated that the number of modules, as well as number of rollers per module, may be varied in alternate embodiments based on practical considerations. As will be discussed in details below, one module may include a shape and/or size and/or material different from that of another module. Further, while the support structure 102 includes two end plates 108a, 108b as can be seen in Figure 1 , it will be appreciated that the support structure 102 may include one or more plates in alternate embodiments.
  • FIGS 2A-2D show example implementations of the mechanism of Figure 1 .
  • the modules 204a, 204b, 204c have the same shape, while in Figure 2B, the module 214a has a different shape from that of the modules 214b, 214c.
  • the support structure 222 in Figure 2C is also different from that in other figures, and may provide a light-weight implementation for certain applications, for example, if the number of modules is known and not expected to change.
  • Figure 2D shows a prototype device in which the support structure is in the form of two big wheels 232a, 232b that are configured to spin concurrently but independently of the modules which are made up of small rollers 236.
  • the small rollers 236 may be made of a sponge material for cleaning applications.
  • the small rollers 236 that contact a surface to be cleaned will also rotate.
  • having multiple small rollers can ensure that absorption and cleaning is maximized before the rollers need to be cleaned or replaced.
  • each module e.g. 204a, 214a, 224a
  • an axle of rotation e.g. 208, 218, 2248 which is mounted to the respective support structure (e.g. 202, 212, 222).
  • the axle of rotation may be linear and/or rigid, but it is also possible for the axle of rotation to be non-linear and/or flexible, as described below with reference to Figures 5B-5D.
  • each of the modules extends laterally outward relative to an outer edge of the respective support structure. Such configuration can prevent the support structure from scratching an object or surface that is in contact with the module even if the modules are made of a compressible material.
  • sizes and/or positions of the modules (e.g. 204a, 214a, 224a) on the support structure (e.g. 202, 212, 222) are selected such that a total circumferential length of the modules is greater than a circumferential length of a shape (e.g. 210, 220, 230) circumscribing the plurality of modules.
  • the total circumferential length of the modules 204a, 204b, 204c is greater than the circumferential length of a circle 210 circumscribing the modules 204a, 204b, 204c.
  • This may be achieved, for example, by positioning the modules 204a, 204b, 204c as close to the outer edge of the support structure 202 as possible so that the modules 204a, 204b, 204c are spaced apart from each other, and increasing the sizes of the modules 204a, 204b, 204c to the extent that they can operate without interfering with each other. If the number of modules is changed, the sizes and/or positions of the modules are adjusted accordingly. In this way, the total surface area provided by the multiple modules in the example embodiments can be higher than that of a single roller of the same size.
  • Figure 3 shows a table comparing different roller implementations and corresponding increases in surface area.
  • a comparison was carried out between a single large roller 302, a wheel-in-wheel mechanism 304 with small rollers, and a wheel- in-wheel mechanism 306 with very small rollers. The comparison was to identify the relationship between the size and number of rollers, and how much more surface area can be obtained with reference to the single large roller 302, whilst ensuring that the overall diameter of the roller wheel is kept constant. For the comparison, a diameter of 9cm was used. It was also assumed that the axle diameter is 30% of the roller diameter. From the table in Figure 3, it can be seen that the surface area increases as smaller rollers are used.
  • Figure 4 shows example roller shapes suitable for the mechanism of Figure 1.
  • the cross-section of the rollers making up the modules is circular.
  • cylindrical rollers may form different modules of the same mechanism, and the rollers may have different surface textures or different hardness/compressibility.
  • the cross-section of the rollers may resemble a polygon or a pointed star.
  • the dimensions of the rollers may be varied, such that the same mechanism may include roller modules of different sizes.
  • FIGS 5A-5D show alternate embodiments of the mechanism of Figure 1 .
  • a mechanism 500 having a support structure 502 and five modules 504a, 504b, 504c, 504d, 504e, each having a mode of operation, is shown.
  • the module 504a is a liquid absorber
  • the module 504b is a reactive absorber
  • the module 504c is an abrasive absorber
  • the module 504d is a dust collector. It is also possible for two or more of the modules to serve different aspects of the same function or mode of operation.
  • FIGS 5B-5C show a mechanism 510 in which an axle of rotation of at least one of the modules is flexible.
  • each module 514 includes small rollers 516 suspended on a flexible cord 518, with ends of the flexible cord 518 being attached to a support structure 512. At rest ( Figure 5B), the flexible cord 518 sags due to the weight of the rollers 516.
  • a centrifugal force generated by the rotation causes the rollers to extend radially outwardly relative to an outer edge of the support structure 51 .
  • the lateral extension varies along the length of the flexible cord 518 such that it is the highest at the middle section of the flexible cord 518.
  • the embodiment of Figures 5B-5C may allow the rollers 516 to conform better to curvatures or internal surfaces of containers such as tanks and silos.
  • a roller module using a flexible cord may be simpler in construction and easier to manufacture.
  • FIG. 5D shows a mechanism 520 in which each module 524 includes rollers 526 suspended on a non-linear cord 528.
  • ends of the cord 528 are connected to each other and the cord 528 may be rigid.
  • the rollers are rigid and the cord may be of a different stiffness depending on the application.
  • the mechanism according to the present disclosure can be passive or driven by actuators (e.g. motors).
  • Figures 6A-6C show example actuator implementations for the mechanism.
  • an actuator in the form of a motor 600 can rotate a support structure 602, while each of the plurality of modules 604a, 604b, 604c is freely rotatable about a respective axle mounted on the support structure 602.
  • the mechanism includes a plurality of actuators in the form of motors 615, 616, 617, 618 each configured to independently rotate a respective one of the support structure 612 and the plurality of modules 614a, 614b, 614c.
  • an actuator in the form of a motor 620 can rotate the support structure 622, and a rotation of the support structure 622 can be transferred into a rotation of at least one of the plurality of modules 624a, 624b, 624c using a gear set 626.
  • the speed of rotation can also be adjusted depending on application and requirement.
  • the modules within the same mechanism may also have different speeds of operation, for example, by controlling the individual motors 616, 617 618 in Figure 6B or by using different gear ratios in Figure 6C, as will be appreciated by a person skilled in the art.
  • the individual modules may also be replaced by or be used in combination with different modules such as rollers made of different materials, scrapers etc. depending on the function, as seen e.g. in Figure 5A.
  • Figures 7A-7B show example implementations of integration of the mechanism of Figure 1 with other devices.
  • each of the rollers may be used in different applications as shown in Figures 7A-7B.
  • one roller may be used for collecting dust while another may be used as a liquid absorber.
  • a mechanism 700 may be used to sweep up dust past a scrapper edge 702 and the dust is then collected by a vacuum nozzle 704.
  • a mechanism 710 may be used with both a liquid dispenser 712 and a vacuum nozzle 714, where some modules of the mechanism 710 can sweep up dust which is collected by the vacuum nozzle 714, while some other modules of the mechanism can dispense a liquid received from the liquid dispenser 712 for cleaning.
  • Each of the rollers may also rotate at a different frequency, which can result in a heterogeneous effect by the mechanism. It can be appreciated that the mechanism can be used in several different applications due to the heterogeneous effect provided by the mechanism.
  • the present disclosure provides a mechanism comprising a support structure; and a plurality of roller modules rotatably mounted on the support structure, wherein one roller module of the plurality of roller modules is configured to perform a function different from that of another roller module.
  • Figure 8 shows a flow chart illustrating an operating method according to an example embodiment.
  • a mechanism including a support structure and a plurality of modules rotatably being mounted on the support structure is provided.
  • Each of the plurality of modules has a configurable mode of operation.
  • the mechanism is operated to rotate the plurality of modules such that at least two modules have any one of identical, similar or different modes of operation.
  • the mechanism as described in the present disclosure can allow a greater area of contact to the surface as compared to traditional conventional mechanisms of that given size. Having a greater surface area of contact may also result in a greater coverage per run.
  • this design can also allow different modules, each having different functions, to be used concurrently to ensure that operations can be carried out effectively and efficiently. This may also improve safety where the operations have to be conducted in hazardous and confined space environments.
  • One embodiment includes a wheel-in-wheel mechanism where the bigger wheel supports small rollers along the circumference.
  • the small rollers enable the contact with the surface to be maximized as compared to conventional roller device of a similar size.
  • the mechanism as described is also modular and customizable.
  • each smaller spinning module can serve as a different function depending on the type of operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

Un mécanisme pour un dispositif de nettoyage ou de distribution de liquide comprend une structure de support et une pluralité de modules montés rotatifs sur la structure de support. La structure de support est rotative. Chaque module de la pluralité de modules a un mode de fonctionnement configurable. Au moins deux modules ont des modes de fonctionnement identiques ou différents.
PCT/SG2021/050183 2020-04-03 2021-03-31 Mécanisme pour dispositif de nettoyage ou de distribution de liquide et son procédé de fonctionnement WO2021201781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG10202003135W 2020-04-03
SG10202003135W 2020-04-03

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WO2021201781A1 true WO2021201781A1 (fr) 2021-10-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000069307A1 (fr) * 1999-05-17 2000-11-23 Claudio Marino Brosse a cheveux rotative equipee d'un moteur
JP2004237220A (ja) * 2003-02-06 2004-08-26 Osaka Gas Co Ltd 管内クリーニング装置
JP2007289460A (ja) * 2006-04-26 2007-11-08 Kenji Jitsuhara ブラシ回転駆動装置
US20120311799A1 (en) * 2011-06-07 2012-12-13 Anton Jaeger Cleaning apparatus
DE102013203592A1 (de) * 2013-03-04 2014-09-04 Anton Jäger Reinigungsvorrichtung
JP2015164531A (ja) * 2013-04-29 2015-09-17 時悟 柳 ブラシ及びブラシ体
CN107999477A (zh) * 2017-12-15 2018-05-08 王香亭 一种管道清洁机器人

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000069307A1 (fr) * 1999-05-17 2000-11-23 Claudio Marino Brosse a cheveux rotative equipee d'un moteur
JP2004237220A (ja) * 2003-02-06 2004-08-26 Osaka Gas Co Ltd 管内クリーニング装置
JP2007289460A (ja) * 2006-04-26 2007-11-08 Kenji Jitsuhara ブラシ回転駆動装置
US20120311799A1 (en) * 2011-06-07 2012-12-13 Anton Jaeger Cleaning apparatus
DE102013203592A1 (de) * 2013-03-04 2014-09-04 Anton Jäger Reinigungsvorrichtung
JP2015164531A (ja) * 2013-04-29 2015-09-17 時悟 柳 ブラシ及びブラシ体
CN107999477A (zh) * 2017-12-15 2018-05-08 王香亭 一种管道清洁机器人

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