CN108742345A - Multifunctional floor-sweeping machine people - Google Patents
Multifunctional floor-sweeping machine people Download PDFInfo
- Publication number
- CN108742345A CN108742345A CN201810632190.7A CN201810632190A CN108742345A CN 108742345 A CN108742345 A CN 108742345A CN 201810632190 A CN201810632190 A CN 201810632190A CN 108742345 A CN108742345 A CN 108742345A
- Authority
- CN
- China
- Prior art keywords
- robot
- cleaning
- roller
- dust
- robot body
- 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.)
- Withdrawn
Links
- 238000010408 sweeping Methods 0.000 title claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims abstract description 131
- 239000000428 dust Substances 0.000 claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 230000036541 health Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 3
- 238000004887 air purification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/24—Floor-sweeping machines, motor-driven
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/38—Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4097—Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping
-
- 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
Landscapes
- Cleaning In General (AREA)
Abstract
The invention discloses Multifunctional floor-sweeping machine people, including：Robot body, driving wheel, the first clearer, cleaning pad, air intake blower fan, air-out blower fan and filter layer；The lower surface of robot body is provided with cleaning pad and at least two driving wheels, the lateral parts of robot body are recessed inwardly to form multiple grooves, first clearer is vertically in groove, and the first clearer can be rotated freely along central axis direction, and the lateral parts of the first clearer stretch out groove.The sweeping robot overcomes having a single function for sweeping robot in the prior art, can only clean the dust on ground, the dust of metope and corner can not be cleared up, cause cleaning effect undesirable；And it is be easy to cause airborne dust problem during cleaning, to pollute indoor environment, the problem of endangering is also resulted in the health of people within doors.
Description
Technical Field
The invention relates to the field of sweeping robots, in particular to a multifunctional sweeping robot.
Background
A floor cleaning robot, also called an automatic cleaning machine, intelligent dust collection, a robot dust collector and the like, is one of intelligent household appliances, and can automatically finish floor cleaning work in a room by means of certain artificial intelligence. Generally, the floor cleaning machine adopts a brushing and vacuum mode, and firstly absorbs the impurities on the floor into the garbage storage box, so that the function of cleaning the floor is achieved. In general, a robot that performs cleaning, dust collection, and floor cleaning is also collectively called a floor cleaning robot.
The sweeping robot in the prior art has a single function, can only clean dust on the ground, and cannot clean the dust on the wall surface and the corner, so that the cleaning effect is not ideal; and raise dust easily in the cleaning process, thereby polluting indoor environment and causing harm to the health of people in the house.
Therefore, the dust cleaning device can clean dust on the ground and can effectively clean dust on the wall surface and the corner in the using process; the invention also discloses a multifunctional sweeping robot capable of purifying indoor air and preventing the problem of dust emission.
Disclosure of Invention
Aiming at the technical problems, the invention aims to overcome the defects that the sweeping robot in the prior art has single function, only can clean dust on the ground, cannot clean the dust on the wall surface and the corner, and has unsatisfactory cleaning effect; the dust is easy to raise in the cleaning process, so that the indoor environment is polluted, and the health of people in the house is also damaged, so that the dust on the ground can be cleaned in the using process, and the dust on the wall surface and the wall corner can be effectively cleaned; but also can purify the air in the room, prevent to produce the multi-functional robot of sweeping the floor of raise dust problem.
In order to achieve the above object, the present invention provides a multifunctional floor sweeping robot, including: the robot comprises a robot body, a driving wheel, a first cleaning roller, a cleaning pad, an air inlet fan, an air outlet fan and a filter layer; the cleaning pad and at least two driving wheels are arranged on the lower surface of the robot body, the side parts of the robot body are recessed inwards to form a plurality of grooves, the first cleaning roller is vertically arranged in the grooves and can freely rotate along the direction of a central shaft, and the side parts of the first cleaning roller extend out of the grooves; wherein the first cleaning roller includes: the roller body is vertically arranged, two ends of the roller body are arranged in the grooves through the rotating shaft respectively, the roller body can rotate freely by taking the rotating shaft as an axis, and a plurality of cleaning brushes are detachably arranged on the outer peripheral surface of the roller body; the utility model discloses a robot, including robot body, last chamber, last intracavity is provided with the air inlet that the last chamber communicates with each other, robot body's inside is separated into epicoele and lower chamber through the baffle, robot body's side be provided with the communicating air intake of epicoele, robot body's top be provided with the communicating air outlet of epicoele, it is located to go up the intracavity be provided with air intake fan on the air intake, it is located to go up the intracavity be provided with air-out fan on the air outlet, it still be provided with.
Preferably, the filter layer comprises an activated carbon layer, a non-woven fabric layer, a fiber fabric layer and a high-strength polyethylene folded net layer which are arranged in sequence.
Preferably, a humidifier is further arranged in the upper cavity.
Preferably, the robot of sweeping floor that can clear up the corner still includes the second cleaning roller, the rotatable setting of second cleaning roller is in the lower surface of robot body, the both ends of second cleaning roller are in through air duct and setting respectively the inside dust catcher of robot body is linked together, the inside cavity setting of second cleaning roller, just the surface of second cleaning roller is provided with a plurality of dust absorption holes that are linked together with inside.
Preferably, the lower surface of the robot body is provided with an arc cover matched with the second cleaning roller, the concave side of the arc cover faces the second cleaning roller, and the angle between the arc cover and the lower surface of the robot body can be adjusted.
Preferably, the arc cover is hinged to one side of the lower surface of the robot body, and a steering engine is arranged at the hinged position.
Preferably, a space is arranged between every two cleaning brushes, a plurality of through holes are arranged in the space on the circumferential surface of the roller body, the inside of the roller body is hollow, the through holes are communicated with the inside of the roller body, and a dust suction mechanism is arranged in the roller body.
Preferably, the cleaning brush is connected with the outer circumferential surface of the roller body in a snap-in manner.
Preferably, the outer peripheral surface of the roller body is provided with a plurality of fixing grooves along the vertical direction, the cleaning brush is provided with a fixing block matched with the fixing grooves, and the fixing block is clamped in the fixing grooves.
Preferably, one side of the cleaning brush, which is far away from the roller body, is arc-shaped, and the side surfaces of the plurality of cleaning brushes form an arc-shaped circumferential surface.
According to the technical scheme, when the multifunctional sweeping robot is used, the driving wheel is used for driving the robot body to move, the cleaning pad is used for cleaning dust on the ground, the first cleaning roller is used for cleaning dust on the wall surface and the wall corner, the first cleaning roller can rotate when being used, and the cleaning brush is used for cleaning dust on the wall surface and the wall corner, so that the cleaning effect is improved, and the normal movement of the robot is not influenced. The cleaning brush can also be disassembled, so that the cleaning brush is convenient to replace; and the air inlet fan is also utilized to suck indoor air into the upper cavity, the air entering the filter layer is effectively filtered, and the purified air is discharged from the air outlet at the top by the air outlet fan, so that the air purification effect is achieved. The multifunctional sweeping robot provided by the invention overcomes the defects that the sweeping robot in the prior art has a single function, only can clean dust on the ground, and cannot clean the dust on the wall surface and the corner, so that the cleaning effect is not ideal; and the dust is easy to cause in the cleaning process, thereby polluting the indoor environment and causing harm to the health of people in the house.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a sweeping robot capable of cleaning corners, provided in a preferred embodiment of the present invention;
fig. 2 is a top view of a first cleaning roller of a sweeping robot capable of cleaning corners, provided in a preferred embodiment of the present invention;
FIG. 3 is an assembly view of a cleaning pad on a sweeping robot capable of cleaning corners and a second cleaning roller provided in a preferred embodiment of the present invention;
fig. 4 is a schematic internal structural diagram of a sweeping robot capable of cleaning corners according to a preferred embodiment of the present invention.
Description of the reference numerals
1 robot body 2 grooves
3 first cleaning roller 31 roller body
32 cleaning brushes 33 interval
34 rotating shaft 4 air intake fan
5 second cleaning roller 6 dust suction hole
7 arc cover 8 driving wheel
9 cleaning pad 10 cleaning pad
11 air outlet fan with 12 filter layers
13 vacuum cleaner 14 rotating shaft
15 air outlet of air duct 16
17 air inlet
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "upper, lower, inner, outer" and the like included in the terms merely represent the orientation of the terms in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms.
As shown in fig. 1 to 3, the present invention provides a multifunctional sweeping robot, comprising: the cleaning robot comprises a robot body 1, a driving wheel 8, a first cleaning roller 3, a cleaning pad 10, an air inlet fan 4, an air outlet fan 12 and a filter layer 11; the cleaning pad 10 and at least two driving wheels 8 are arranged on the lower surface of the robot body 1, the side parts of the robot body 1 are recessed inwards to form a plurality of grooves 2, the first cleaning roller 3 is vertical in the grooves 2, the first cleaning roller 3 can freely rotate along the direction of a central shaft, and the side parts of the first cleaning roller 3 extend out of the grooves 2; wherein the first cleaning roller 3 includes: the roller comprises a roller body 31, a rotating shaft 34 and cleaning brushes 32, wherein the roller body 31 is vertically arranged, two ends of the roller body 31 are respectively arranged in the groove 2 through the rotating shaft 34, the roller body 31 can freely rotate by taking the rotating shaft 34 as a shaft, and the outer peripheral surface of the roller body 31 is detachably provided with a plurality of cleaning brushes 32; go up chamber 92 and cavity of resorption 91 are separated into through the baffle in the inside of robot 1, the side of robot 1 be provided with the communicating air intake 17 of epicoele 92, the top of robot 1 be provided with the communicating air outlet 16 of epicoele 92, lie in epicoele 92 be provided with air intake fan 4 on the air intake 17, lie in epicoele 92 be provided with air outlet fan 12 on the air outlet 2, still be provided with in epicoele 92 with air intake fan 4 with the filter layer 11 that air outlet fan 12 separates.
According to the technical scheme, when the multifunctional sweeping robot is used, the driving wheel is used for driving the robot body to move, the cleaning pad is used for cleaning dust on the ground, the first cleaning roller is used for cleaning dust on the wall surface and the wall corner, the first cleaning roller can rotate when being used, and the cleaning brush is used for cleaning dust on the wall surface and the wall corner, so that the cleaning effect is improved, and the normal movement of the robot is not influenced. The cleaning brush can also be disassembled, so that the cleaning brush is convenient to replace; and the air inlet fan is also utilized to suck indoor air into the upper cavity, the air entering the filter layer is effectively filtered, and the purified air is discharged from the air outlet at the top by the air outlet fan, so that the air purification effect is achieved. The multifunctional sweeping robot provided by the invention overcomes the defects that the sweeping robot in the prior art has a single function, only can clean dust on the ground, and cannot clean the dust on the wall surface and the corner, so that the cleaning effect is not ideal; and the dust is easy to cause in the cleaning process, thereby polluting the indoor environment and causing harm to the health of people in the house.
In a preferred embodiment of the present invention, the filter layer 11 includes an activated carbon layer, a nonwoven fabric layer, a fiber fabric layer, and a high-strength polyethylene folded web layer, which are sequentially disposed. The filter layer 11 of this structure can improve the filter effect effectively to guarantee the quality of air.
In a preferred embodiment of the present invention, a humidifier is further disposed in the upper chamber 92. Thereby humidifying the air.
In a preferred embodiment of the present invention, the multifunctional floor sweeping robot further includes a second cleaning roller 5, the second cleaning roller 5 is rotatably disposed on the lower surface of the robot body 1, two ends of the second cleaning roller 5 are respectively communicated with a dust collector disposed inside the robot body 1 through air ducts, the interior of the second cleaning roller 5 is hollow, and the surface of the second cleaning roller 5 is provided with a plurality of dust collecting holes 6 communicated with the interior. The second cleaning roller 5 is used for effectively cleaning the dust on the ground, and the second cleaning roller 5 can rotate, so that the sweeping robot can adsorb the dust on the ground in the moving process conveniently.
In a preferred embodiment of the present invention, the lower surface of the robot body 1 is provided with an arc cover 7 which is matched with the second cleaning roller 5, the concave side of the arc cover 7 faces the second cleaning roller 5, the angle between the arc cover 7 and the lower surface of the robot body 1 can be adjusted, and the arc cover 7 can clean the sundries attached to the second cleaning roller 5, so as to prevent the cleaning capability of the second cleaning roller 5 and the normal movement of the robot body 1.
In a preferred embodiment of the invention, one side of the arc-shaped cover 7 connected with the lower surface of the robot body 1 is hinged, a steering engine is arranged at the hinged position, and the steering engine is used as a driving mechanism, so that the edge of the arc-shaped cover 7 is driven to be close to the second cleaning roller 5.
In a preferred embodiment of the present invention, a space 33 is disposed between every two of the cleaning brushes 32, a plurality of through holes are disposed in the space 33 on the circumferential surface of the roller body 31, the interior of the roller body 31 is hollow, the through holes are communicated with the interior of the roller body 31, and a dust suction mechanism is disposed in the interior of the roller body 31. The cleaning brush 32 is used for cleaning dust on the wall surface and the wall corner, and the dust collecting mechanism is used for collecting the cleaned dust, so that the cleaning effect is really achieved.
In a preferred embodiment of the present invention, the cleaning brush 32 is snap-fit connected to the outer circumferential surface of the roller body 31. This connected mode is not only stable, and it is convenient right moreover the cleaning brush 32 is changed to guarantee the cleaning performance of cleaning brush 32.
In a preferred embodiment of the present invention, the outer circumferential surface of the roller body 31 is provided with a plurality of fixing grooves along a vertical direction, and the cleaning brush 32 is provided with fixing blocks engaged with the fixing grooves, and the fixing blocks are engaged with the fixing grooves. The cleaning brush 32 is effectively fixed on the outer circumferential surface of the roller body 31 by the fixing block and the fixing groove in cooperation.
In a preferred embodiment of the present invention, a side of the cleaning brush 32 away from the roller body 31 is arc-shaped, and a side surface of the plurality of cleaning brushes 32 forms an arc-shaped circumferential surface. This structure is favorable to further improving the cleaning effect of the cleaning brush 32 on the wall surface, and is also favorable to the movement of the floor sweeping robot.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides a multi-functional robot of sweeping floor which characterized in that, multi-functional robot of sweeping floor includes: the robot comprises a robot body (1), a driving wheel (8), a first cleaning roller (3), a cleaning pad (10), an air inlet fan (4), an air outlet fan (12) and a filter layer (11);
the cleaning pad (10) and at least two driving wheels (8) are arranged on the lower surface of the robot body (1), the side portions of the robot body (1) are recessed inwards to form a plurality of grooves (2), the first cleaning roller (3) is vertical in the grooves (2), the first cleaning roller (3) can freely rotate along the direction of the central shaft, and the side portions of the first cleaning roller (3) extend out of the grooves (2); wherein,
the first cleaning roller (3) comprises: the roller comprises a roller body (31), a rotating shaft (34) and cleaning brushes (32), wherein the roller body (31) is vertically arranged, two ends of the roller body are respectively arranged in a groove (2) through the rotating shaft (34), the roller body (31) can freely rotate by taking the rotating shaft (34) as a shaft, and the outer peripheral surface of the roller body (31) is detachably provided with a plurality of cleaning brushes (32);
the utility model discloses a robot, including robot body (1), the inside of robot body (1) is separated into epicoele (92) and lower chamber (91) through the baffle, the side of robot body (1) be provided with epicoele (92) communicating air intake (17), the top of robot body (1) be provided with epicoele (92) communicating air outlet (16), be located in epicoele (92) be provided with air intake fan (4) on air intake (17), be located in epicoele (92) be provided with air outlet fan (12) on air outlet (2), still be provided with in epicoele (92) with air intake fan (4) with filter layer (11) that air outlet fan (12) separated.
2. The multifunctional sweeping robot of claim 1, wherein the filter layer (11) comprises an activated carbon layer, a non-woven fabric layer, a fiber fabric layer and a high-strength polyethylene folded net layer which are arranged in sequence.
3. The robot of claim 2, wherein a humidifier is further disposed in the upper chamber (92).
4. The multifunctional sweeping robot according to claim 1, further comprising a second cleaning roller (5), wherein the second cleaning roller (5) is rotatably disposed on the lower surface of the robot body (1), two ends of the second cleaning roller (5) are communicated with a dust collector (13) disposed inside the robot body (1) through air ducts (15), the second cleaning roller (5) is hollow, and a plurality of dust collection holes (6) communicated with the inside are disposed on the surface of the second cleaning roller (5).
5. The multifunctional sweeping robot according to claim 4, characterized in that the lower surface of the robot body (1) is provided with an arc cover (7) which is matched with the second cleaning roller (5), the concave side of the arc cover (7) faces the second cleaning roller (5), and the angle between the arc cover (7) and the lower surface of the robot body (1) can be adjusted.
6. The multifunctional floor sweeping robot according to claim 5, wherein one side of the arc-shaped cover (7) connected with the lower surface of the robot body (1) is hinged, and a steering engine is arranged at the hinged position.
7. The robot cleaner of claim 1, wherein a space (33) is provided between every two cleaning brushes (32), a plurality of through holes are provided in the space (33) on the circumferential surface of the roller body (31), the inside of the roller body (31) is hollow, the through holes are communicated with the inside of the roller body (31), and a dust suction mechanism is provided in the inside of the roller body (31).
8. The robot of claim 1, wherein the cleaning brush (32) is snap-fit to the outer circumference of the roller body (31).
9. The robot of claim 8, wherein the outer circumferential surface of the roller body (31) is provided with a plurality of fixing grooves along a vertical direction, and the cleaning brush (32) is provided with fixing blocks matched with the fixing grooves, and the fixing blocks are clamped in the fixing grooves.
10. The robot of claim 9, wherein the side of the cleaning brush (32) away from the roller body (31) is arc-shaped, and the side of the cleaning brush (32) forms an arc-shaped circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810632190.7A CN108742345A (en) | 2018-06-19 | 2018-06-19 | Multifunctional floor-sweeping machine people |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810632190.7A CN108742345A (en) | 2018-06-19 | 2018-06-19 | Multifunctional floor-sweeping machine people |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108742345A true CN108742345A (en) | 2018-11-06 |
Family
ID=63978931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810632190.7A Withdrawn CN108742345A (en) | 2018-06-19 | 2018-06-19 | Multifunctional floor-sweeping machine people |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108742345A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757770A (en) * | 2021-01-09 | 2021-05-07 | 南京闻煜智能科技有限公司 | Screen printing machine |
| CN115299813A (en) * | 2022-08-13 | 2022-11-08 | 刘芳 | Intelligent home system based on 5G network |
-
2018
- 2018-06-19 CN CN201810632190.7A patent/CN108742345A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757770A (en) * | 2021-01-09 | 2021-05-07 | 南京闻煜智能科技有限公司 | Screen printing machine |
| CN115299813A (en) * | 2022-08-13 | 2022-11-08 | 刘芳 | Intelligent home system based on 5G network |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181106 |
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| WW01 | Invention patent application withdrawn after publication |