CN113305101A - One-way water flow cleaning device for screen processing - Google Patents
One-way water flow cleaning device for screen processing Download PDFInfo
- Publication number
- CN113305101A CN113305101A CN202110523589.3A CN202110523589A CN113305101A CN 113305101 A CN113305101 A CN 113305101A CN 202110523589 A CN202110523589 A CN 202110523589A CN 113305101 A CN113305101 A CN 113305101A
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- Prior art keywords
- cleaning
- plate
- guide
- flow
- rack
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- 238000004140 cleaning Methods 0.000 title claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000005406 washing Methods 0.000 claims description 29
- 239000000428 dust Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 210000003437 trachea Anatomy 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 206010044048 Tooth missing Diseases 0.000 claims 1
- 239000000243 solution Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a unidirectional water flow cleaning device for screen processing, which comprises a cleaning tank, a screen mounting groove and a unidirectional flow cleaning mechanism, wherein a cleaning cavity is formed in the cleaning tank and is of a reversed-square structure, the screen mounting groove is formed in the inner wall of the cleaning cavity of the cleaning tank, and the unidirectional flow cleaning mechanism is positioned in the cleaning tank and is used for pushing water in the cleaning cavity to flow in a unidirectional mode and cleaning a screen mounted in the screen mounting groove.
Description
Technical Field
One or more embodiments of the present description relate to the field of screen processing equipment, in particular to a unidirectional water flow cleaning device for screen processing.
Background
The screen is woven by metal wires or fiber wires, and the aperture is 0.15-1 mm. Can remove and recover suspended matters with different types and small sizes, and has the advantages of simple and efficient screen separation, low operating cost and the like. Generally used for the treatment of waste water with smaller scale. There are many types of screens, the two main ones being vibrating screens and hydraulic screens.
Screen cloth among the prior art in process of production, the surface can be stained with a large amount of dust impurity, need wash, and traditional washing mode is washed the screen cloth, has wasted a large amount of water resources, perhaps arranges the screen cloth in inside the basin, but the inside water of basin can two-way flow, washs, and the impurity that is washed down can contact with the screen cloth again, causes secondary pollution, to sum up, this application now provides a screen cloth processing with one-way rivers cleaning device and solves the problem that the aforesaid appears.
Disclosure of Invention
In view of the above, an object of one or more embodiments of the present disclosure is to provide a unidirectional water flow cleaning device for screen processing, so as to solve the problems in the background art.
Based on above-mentioned purpose, one or more embodiments of this specification provide a one-way rivers cleaning device is used in screen cloth processing, including washing tank, screen cloth mounting groove and one-way flow wiper mechanism, the washing chamber has been seted up to inside the washing tank, and washs the chamber and be back font structure, the screen cloth mounting groove has been seted up to the washing intracavity wall of washing tank, one-way flow wiper mechanism is located inside the washing tank, and is used for promoting the inside water one-way flow of washing chamber to the screen cloth of installing in screen cloth mounting groove cleans.
Preferably, the one-way mobile wiper mechanism includes first motor, lacks tooth gear, rack, reset spring and water conservancy diversion subassembly, first motor welding is inside the washing tank, it connects on the washing tank to lack tooth gear revolve, and rotates by a motor drive, rack sliding connection is on the washing tank, and rack and the intermittent type nature meshing of lacking tooth gear, the rack passes through reset spring zonulae occludens on the washing tank, the water conservancy diversion subassembly is located and washs intracavity portion, and with rack fixed connection.
More preferably, the guide assembly comprises a sliding plate and a guide plate, the sliding plate is slidably connected inside the cleaning cavity and fixedly connected with the rack, and the guide plate is rotatably connected to the sliding plate.
More preferably, the guide assembly further comprises a first limiting bump, a second limiting bump and a limiting sleeve, the first limiting bump is arranged on one side of the guide plate on the sliding plate and is close to the guide plate, the second limiting bump is arranged on the other side of the guide plate on the sliding plate and is far away from the guide plate, the first limiting bump is used for limiting the rotation angle of the guide plate, the second limiting bump is used for preventing the guide plate from being attached to the sliding plate, the limiting sleeve is arranged on the cleaning tank, and the limiting sleeve is sleeved outside the reset spring.
More preferably, the one-way flow wiper mechanism still includes guide bar and uide bushing, the guide bar is fixed in the rack and is kept away from reset spring's one end, the uide bushing sets up on the washing tank, and the uide bushing cover is located the guide bar outside, and guide bar and uide bushing are used for the slip orientation for the rack.
Preferably, the cleaning device further comprises a filtering mechanism, the filtering mechanism comprises a Venturi plate, a filter bag frame and a dust removal filter bag, the Venturi plate is fixedly arranged inside the cleaning cavity, the filter bag frame is arranged on the Venturi plate, the opening of the filter bag frame is opposite to the flowing direction of water, and the dust removal filter bag is located inside the filter bag frame.
More preferably, the filter bag frames and the dust removal filter bags are respectively provided with a plurality of filter bag frames, and the filter bag frames are uniformly arranged on the Venturi plate.
More preferably, filtering mechanism still includes second motor, mounting panel, jetting pipe, gas package, pulse solenoid valve and secondary filter net, the second motor sets up on the washing tank, the mounting panel rotates to be connected in wasing intracavity portion, and rotates by second motor drive, the venturi plate sets up on the mounting panel, the jetting pipe sets up in wasing intracavity portion, and the jetting mouth of jetting pipe and dust removal filter bag initial position rotate 90 back corresponding, the gas package sets up inside the washing tank, and the gas package passes through the trachea and is connected with the jetting pipe, pulse solenoid valve sets up on the trachea, secondary filter net detachable installation is on the mounting panel.
From the above, it can be seen that the beneficial effects of the present invention are: according to the invention, water in the water tank flows in a unidirectional manner through the first motor, the gear with missing teeth, the rack, the return spring, the sliding plate and the guide plate, so that the cleaning effect is ensured, and water resources are saved; the invention can filter flowing water through the Venturi plate, the filter bag frame and the dust removal filter bag; according to the invention, through the second motor, the mounting plate, the injection pipe, the air bag, the pulse electromagnetic valve and the fine filter screen, residual impurities in the dust-removing filter bag can be cleaned, the cleanliness of water is ensured, and the secondary pollution to the screen is prevented.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a unidirectional flow cleaning mechanism of the present invention;
FIG. 3 is a schematic view of the structure of the flow guide assembly of the present invention;
FIG. 4 is a schematic structural view of a preferred embodiment of FIG. 1;
fig. 5 is a schematic structural view of the filter mechanism of fig. 4.
In the reference symbols: 1. a cleaning tank; 2. a cleaning chamber; 3. a unidirectional flow cleaning mechanism; 4. a filtering mechanism; 31. a flow guide assembly; 32. a guide bar; 33. a guide sleeve; 34. a rack; 35. a first motor; 36. a gear with missing teeth; 37. a limiting sleeve; 38. a return spring; 41. mounting a plate; 42. fine filtering net; 43. a second motor; 44. air bags; 45. a pulse electromagnetic valve; 46. a filter bag frame; 47. a dust removal filter bag; 48. a blowing pipe; 49. a Venturi plate; 311. a baffle; 312. a first limit bump; 313. a sliding plate; 314. a second limit bump; a. screen cloth mounting groove.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example one
Referring to fig. 1 to 3, a unidirectional water flow cleaning device for processing a screen includes a cleaning tank 1, a screen mounting groove a and a unidirectional flow cleaning mechanism 3, wherein a cleaning cavity 2 is formed inside the cleaning tank 1, the cleaning cavity 2 is of a structure shaped like a Chinese character 'hui', the screen mounting groove a is formed on the inner wall of the cleaning cavity 2 of the cleaning tank 1, and the unidirectional flow cleaning mechanism 3 is located inside the cleaning tank 1, and is used for pushing water inside the cleaning cavity 2 to flow in a unidirectional manner and cleaning the screen mounted inside the screen mounting groove a.
As the improvement of above-mentioned scheme, unidirectional flow wiper mechanism 3 includes first motor 35, lacks tooth gear 36, rack 34, reset spring 38 and water conservancy diversion subassembly 31, first motor 35 welds inside washing tank 1, it connects on washing tank 1 to lack tooth gear 36 to rotate, and rotates by first motor 35 drive, rack 34 sliding connection is on washing tank 1, and rack 34 and the intermittent type meshing of lacking tooth gear 36, rack 34 passes through reset spring 38 zonulae occludens on washing tank 1, water conservancy diversion subassembly 31 is located inside washing chamber 2, and with rack 34 fixed connection.
As a modified solution of the above solution, the flow guiding assembly 31 includes a sliding plate 313 and a flow guiding plate 311, the sliding plate 313 is slidably connected inside the washing chamber 2, the sliding plate 313 is fixedly connected with the rack 34, and the flow guiding plate 311 is rotatably connected to the sliding plate 313.
As an improvement of the above solution, the flow guiding assembly 31 further includes a first limiting protrusion 312, a second limiting protrusion 314, and a limiting sleeve 37, the first limiting protrusion 312 is disposed on one side of the flow guiding plate 311 on the sliding plate 313 and is close to the position of the flow guiding plate 311, the second limiting protrusion 314 is disposed on the other side of the flow guiding plate 311 on the sliding plate 313 and is far away from the position of the flow guiding plate 311, the first limiting protrusion 312 is used for limiting a rotation angle of the flow guiding plate 311, the second limiting protrusion 314 is used for preventing the flow guiding plate 311 from being attached to the sliding plate 313, the limiting sleeve 37 is disposed on the washing tank 1, and the limiting sleeve 37 is sleeved outside the return spring 38.
As a modification of the above solution, the unidirectional flow washing mechanism 3 further includes a guide rod 32 and a guide sleeve 33, the guide rod 32 is fixed at one end of the rack 34 far from the return spring 38, the guide sleeve 33 is disposed on the washing tank 1, the guide sleeve 33 is sleeved outside the guide rod 32, and the guide rod 32 and the guide sleeve 33 are used for guiding the rack 34 in a sliding manner.
The working process is as follows: injecting water into the cleaning cavity 2 of the cleaning tank 1, clamping and installing the screen to be cleaned in the screen installation groove a, operating the first motor 35, rotating the output end of the first motor 35 to drive the gear 36 to rotate, intermittently meshing the gear 36 with the rack 34, and applies intermittent driving force to the rack 34, the rack 34 is driven to intermittently slide by matching with the return spring 38, the rack 34 drives the sliding plate 313 to intermittently slide, when the sliding plate 313 slides to the left, under the action of the first limit bump 312, the guide plate 311 pushes the water inside the cleaning cavity 2 to flow, so that the water flows, when the screen is cleaned and the sliding plate 313 slides to the right, the guide plate 311 rotates under the action of force, the guide plate 311 and the sliding plate 313 are gradually attached to stop acting on water flow to prevent the water flow from flowing reversely, and the guide plate 311 is prevented from being attached to the sliding plate 313 by the second limit bump 314.
Example two
Referring to fig. 4-5, as an improvement of the above scheme, the filter device 4 further includes a filter mechanism 4, the filter mechanism 4 includes a venturi plate 49, a filter bag frame 46 and a dust filter bag 47, the venturi plate 49 is fixedly disposed inside the cleaning chamber 2, the filter bag frame 46 is disposed on the venturi plate 49, and an opening of the filter bag frame 46 is opposite to a flow direction of water, and the dust filter bag 47 is disposed inside the filter bag frame 46.
As a modification of the above scheme, the filter bag frames 46 and the dust removal filter bags 47 are respectively provided with a plurality of filter bag frames 46, and the filter bag frames 46 are uniformly arranged on the Venturi plate 49.
As a modified scheme of the above scheme, the filtering mechanism 4 further comprises a second motor 43, a mounting plate 41, an injection tube 48, an air bag 44, a pulse electromagnetic valve 45 and a fine filter net 42, the second motor 43 is arranged on the cleaning tank 1, the mounting plate 41 is rotatably connected inside the cleaning chamber 2 and is driven by the second motor 43 to rotate, the venturi plate 49 is arranged on the mounting plate 41, the injection tube 48 is arranged inside the cleaning chamber 2, an injection opening of the injection tube 48 corresponds to an initial position of the dust removal filter bag 47 after rotating for 90 degrees, the air bag 44 is arranged inside the cleaning tank 1, the air bag 44 is connected with the injection tube 48 through an air pipe, the pulse electromagnetic valve 45 is arranged on the air pipe, and the fine filter net 42 is detachably mounted on the mounting plate 41.
The working process is as follows: in the flowing process of water, the screen cloth is cleaned, the cleaned water flows to the dust-removing filter bag 47 and is filtered by the dust-removing filter bag 47, the filtered water continuously flows and is recycled, the screen cloth is cleaned, after the cleaning is finished, the second motor 43 is operated, the second motor 43 drives the mounting plate 41 to rotate, the mounting plate 41 rotates 90 degrees, the second motor 43 stops operating, the pulse electromagnetic valve 45 operates, the pulse electromagnetic valve 45 pressurizes the gas in the gas bag 44 and then conveys the gas to the injection pipe 48, the injection pipe 48 blows the pressurized gas to the dust-removing filter bag 47, the volume of the dust-removing filter bag 47 expands, impurities remained in the dust-removing filter bag 47 fall onto the fine filter net 42, a user can disassemble the fine filter net 42 and clean or replace the fine filter net 42, and the cleanliness of the water is guaranteed.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (8)
1. The utility model provides a one-way rivers cleaning device is used in screen cloth processing which characterized in that includes:
the cleaning device comprises a cleaning tank (1), wherein a cleaning cavity (2) is formed in the cleaning tank (1), and the cleaning cavity (2) is of a square-back structure;
the inner wall of the cleaning cavity (2) of the cleaning tank (1) is provided with a screen mounting groove (a); and
the one-way flow cleaning mechanism (3) is positioned inside the cleaning tank (1), is used for pushing water inside the cleaning cavity (2) to flow in one way and cleans the screen installed inside the screen installation groove (a).
2. A unidirectional water flow cleaning device for screen processing according to claim 1, wherein said unidirectional flow washing mechanism (3) comprises:
the first motor (35), the first motor (35) is welded in the cleaning tank (1);
the tooth-missing gear (36) is rotationally connected to the cleaning tank (1) and is driven to rotate by a first motor (35);
the rack (34), the rack (34) is connected to the washing tank (1) in a sliding mode, and the rack (34) is intermittently meshed with the gear (36) with the missing teeth;
the rack (34) is tightly connected to the cleaning tank (1) through the return spring (38); and
the flow guide assembly (31) is located inside the cleaning cavity (2) and is fixedly connected with the rack (34).
3. A unidirectional water flow cleaning device for screen processing according to claim 2, wherein said flow guide assembly (31) comprises:
the sliding plate (313) is connected inside the cleaning cavity (2) in a sliding mode, and the sliding plate (313) is fixedly connected with the rack (34); and
the guide plate (311) is rotatably connected to the sliding plate (313).
4. A unidirectional water flow cleaning device for screen processing according to claim 3, wherein said flow guide assembly (31) further comprises:
the first limiting lug (312) is arranged on one side of the guide plate (311) on the sliding plate (313) and is close to the guide plate (311);
the second limiting lug (314), the second limiting lug (314) is arranged on the other side of the guide plate (311) on the sliding plate (313), and is far away from the guide plate (311); and
and the limiting sleeve (37) is arranged on the cleaning tank (1), and the limiting sleeve (37) is sleeved outside the reset spring (38).
5. A unidirectional water flow cleaning device for screen processing according to claim 2, wherein said unidirectional flow washing mechanism (3) further comprises:
the guide rod (32), the said guide rod (32) is fixed on one end far away from the reset spring (38) of the rack (34); and
the guide sleeve (33), guide sleeve (33) set up on washing tank (1), and guide sleeve (33) cover is located guide bar (32) outside.
6. The one-way water stream cleaning device for screen processing according to claim 1, further comprising:
a filter mechanism (4), the filter mechanism (4) comprising:
the Venturi plate (49), the Venturi plate (49) is fixedly arranged inside the cleaning cavity (2);
a filter bag frame (46), wherein the filter bag frame (46) is arranged on the Venturi plate (49), and the opening is opposite to the flowing direction of water; and
a dust filter bag (47), the dust filter bag (47) being located inside the filter bag frame (46).
7. A unidirectional water flow cleaning device for screen processing according to claim 6, characterized in that a plurality of filter bag frames (46) and dust removing filter bags (47) are provided, and the filter bag frames (46) are uniformly arranged on the Venturi plate (49).
8. A unidirectional water flow cleaning device for screen processing according to claim 6, wherein said filtering means (4) further comprises:
a second motor (43), wherein the second motor (43) is arranged on the cleaning tank (1);
the mounting plate (41), the said mounting plate (41) is connected to the inside of the washing chamber (2) rotatably, and is driven by the second electrical machinery (43) to rotate, the said Venturi plate (49) is set up on the mounting plate (41);
an injection pipe (48), wherein the injection pipe (48) is arranged inside the cleaning cavity (2);
the air bag (44) is arranged inside the cleaning tank (1), and the air bag (44) is connected with the blowing pipe (48) through an air pipe;
the pulse electromagnetic valve (45), the said pulse electromagnetic valve (45) is set up on the trachea; and
the fine filter net (42), fine filter net (42) is detachable to be installed on the installation plate (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110523589.3A CN113305101A (en) | 2021-05-13 | 2021-05-13 | One-way water flow cleaning device for screen processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110523589.3A CN113305101A (en) | 2021-05-13 | 2021-05-13 | One-way water flow cleaning device for screen processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113305101A true CN113305101A (en) | 2021-08-27 |
Family
ID=77373202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110523589.3A Withdrawn CN113305101A (en) | 2021-05-13 | 2021-05-13 | One-way water flow cleaning device for screen processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113305101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307304A (en) * | 2022-01-05 | 2022-04-12 | 芜湖艾妮日化有限责任公司 | Filter equipment is used in production for aluminium chloride production |
| CN119713190A (en) * | 2025-02-13 | 2025-03-28 | 河南中科华朗智联科技有限公司 | Urban street lamp capable of adjusting light intensity |
-
2021
- 2021-05-13 CN CN202110523589.3A patent/CN113305101A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307304A (en) * | 2022-01-05 | 2022-04-12 | 芜湖艾妮日化有限责任公司 | Filter equipment is used in production for aluminium chloride production |
| CN119713190A (en) * | 2025-02-13 | 2025-03-28 | 河南中科华朗智联科技有限公司 | Urban street lamp capable of adjusting light intensity |
| CN119713190B (en) * | 2025-02-13 | 2025-07-01 | 河南中科华朗智联科技有限公司 | Urban street lamp capable of adjusting light intensity |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210827 |