CN111617991A - High-efficient dust collector of electrical automation equipment - Google Patents
High-efficient dust collector of electrical automation equipment Download PDFInfo
- Publication number
- CN111617991A CN111617991A CN202010400823.9A CN202010400823A CN111617991A CN 111617991 A CN111617991 A CN 111617991A CN 202010400823 A CN202010400823 A CN 202010400823A CN 111617991 A CN111617991 A CN 111617991A
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- base
- dust removing
- automation equipment
- equipment
- frame
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- 239000000428 dust Substances 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 230000001680 brushing effect Effects 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004870 electrical engineering Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- B08B1/12—
-
- B08B1/32—
-
- 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
-
- 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
Abstract
The invention discloses a high-efficiency dust removal device of electrical automation equipment, which comprises a base and a plurality of racks arranged on the base; the base is of a circular ring structure formed by splicing two semicircular rings, a space for placing equipment is reserved in the middle of the base, two supports are symmetrically arranged on the left side and the right side of the base, the supports are of U-shaped structures, and the supports are rotatably connected with the base; the frame is provided with a spraying mechanism or a brushing mechanism for cleaning the equipment, and the inner side of the frame is also provided with a lifting mechanism for driving the spraying mechanism or the brushing mechanism to move. The base is provided with a plurality of racks, the racks are provided with spraying mechanisms or brushing mechanisms for cleaning equipment, the inner sides of the racks are also provided with lifting mechanisms for driving the spraying mechanisms or the brushing mechanisms to move, and when the base rotates, the spraying mechanisms or the brushing mechanisms on the racks continuously rotate to spray, brush and remove dust on the outer surface of the equipment, so that the dust removal efficiency of the outer surface of the equipment is improved.
Description
Technical Field
The invention relates to the technical field of equipment dust removal, in particular to a high-efficiency dust removal device of electric automation equipment.
Background
The electrical engineering and the automation profession thereof are an emerging subject in the field of electrical information, but the development is very rapid due to close correlation with the daily life and industrial production of people, and the electrical engineering and the automation profession thereof are relatively mature at present. Has become an important component of high and new technology industry, is widely applied to the fields of industry, agriculture, national defense and the like, and plays an increasingly important role in national economy. The antenna extends to various industries, is small to the design of a switch and large to the research of an aerospace plane, and has the figure of the aerospace plane. The talent can engage in the work in the fields of system operation, automatic control, power electronic technology, information processing, test technology, research and development, economic management, electronic and computer technical application and the like related to electrical engineering, and is a wide-caliber 'composite' advanced engineering technical talent.
Electric automation equipment can constantly drop the ash in long-term use, leads to equipment surface dust to pile up, not only influences that equipment is pleasing to the eye but also influences equipment and uses, to above current situation, the urgent need develops an electric automation equipment's high-efficient dust collector to overcome not enough in the current practical application.
Disclosure of Invention
The invention aims to provide a high-efficiency dust removal device of electric automation equipment, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-efficiency dust removal device of electrical automation equipment comprises a base and a plurality of racks arranged on the base; the base is of a circular ring structure formed by splicing two semicircular rings, a space for placing equipment is reserved in the middle of the base, two supports are symmetrically arranged on the left side and the right side of the base, the supports are of U-shaped structures, and the supports are rotatably connected with the base; the frame is provided with a spraying mechanism or a brushing mechanism for cleaning the equipment, and the inner side of the frame is also provided with a lifting mechanism for driving the spraying mechanism or the brushing mechanism to move.
As a further scheme of the invention: the two semicircular rings are fixedly connected through a connecting bolt.
As a further scheme of the invention: the support is located the upper and lower bilateral symmetry of base and rotates and install two leading wheels, sets up the track of mutually supporting with the leading wheel on the base, and the track is the loop configuration, and the base rotates through the cooperation between leading wheel and the track and installs on the support.
As a further scheme of the invention: a gear ring is fixedly arranged on the outer side of the base, a main gear is rotatably arranged on the bracket, and the main gear is meshed with the gear ring; the main gear is rotatably installed on the support through a rotating shaft, a first motor is fixedly installed on the support, and the output end of the first motor is in transmission connection with the rotating shaft through a bevel gear set.
As a further scheme of the invention: the bottom of the support is also rotatably provided with a caster which is of a self-locking caster structure.
As a further scheme of the invention: the lifting mechanism comprises a screw rod rotatably mounted on the rack, a threaded sleeve is connected to the screw rod in a threaded manner, one side of the threaded sleeve is connected with the rack in a sliding manner, and the other side of the screw rod is fixedly connected with the spraying mechanism or the brushing mechanism; and a second motor for driving the screw rod to rotate is fixedly installed on the outer side of the rack.
As a further scheme of the invention: the spraying mechanism comprises a spray head fixedly mounted on the threaded sleeve and a water tank fixedly mounted on the rack, a water pump is fixedly mounted on the upper side of the water tank, one end of the water pump is communicated with the inside of the water tank, the other end of the water pump is communicated with a spray head through a water pipe, and a dust removal brush is fixedly mounted at the telescopic end of an electric push rod.
As a further scheme of the invention: replace with dust removal mechanism spraying mechanism, dust removal mechanism include dust removal head and fixed mounting dust absorption fan in the frame on the fixed mounting swivel nut, and dust absorption fan's inlet end passes through connecting pipe and dust removal head intercommunication, and the connecting pipe includes dust removal pipe and two symmetries set up and the hose of dust removal pipe left and right sides, and coarse strainer, meticulous filter screen and activated carbon layer are installed in proper order along the air current flow direction in the inside of dust removal pipe.
Compared with the prior art, the invention has the beneficial effects that: the base is provided with a plurality of racks, the racks are provided with spraying mechanisms or brushing mechanisms for cleaning equipment, the inner sides of the racks are also provided with lifting mechanisms for driving the spraying mechanisms or the brushing mechanisms to move, and when the base rotates, the spraying mechanisms or the brushing mechanisms on the racks continuously rotate to spray, brush and remove dust on the outer surface of the equipment, so that the dust removal efficiency of the outer surface of the equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of a high-efficiency dust removing device of an electrical automation apparatus.
Fig. 2 is a schematic structural view of another state of the high-efficiency dust removing device of the electric automation equipment.
Fig. 3 is a schematic structural diagram of a base in a high-efficiency dust removing device of the electrical automation equipment.
Fig. 4 is a schematic structural view of a connection pipe in embodiment 2 in a high-efficiency dust removing apparatus of an electric automation device.
Fig. 5 is a schematic structural diagram of a dust removal pipe in the high-efficiency dust removal device of the electrical automation equipment.
In the figure: 1-base, 2-frame, 3-connecting bolt, 4-bracket, 5-gear ring, 6-main gear, 7-first motor, 8-guide wheel, 9-water tank, 10-water pump, 11-water pipe, 12-screw sleeve, 13-screw, 14-nozzle, 15-second motor, 16-bevel gear set, 17-rotating shaft, 18-truckle, 19-track, 20-electric push rod, 21-dust-removing brush, 22-hose, 23-dust-removing pipe, 24-active carbon layer, 25-fine filter screen, 26-coarse filter screen.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, in an embodiment of the present invention, an efficient dust removing apparatus for an electrical automation device includes a base 1 and a plurality of racks 2 installed on the base 1; the base 1 is of a circular ring structure formed by splicing two semicircular rings, a space for placing equipment is reserved in the middle of the base 1, two supports 4 are symmetrically arranged on the left side and the right side of the base 1, the supports 4 are of U-shaped structures, and the supports 4 are rotatably connected with the base 1;
specifically, in the embodiment, the two semicircular rings are fixedly connected through the connecting bolt 3, so that the two semicircular rings can be conveniently spliced and detached;
the support 4 is symmetrically and rotatably provided with two guide wheels 8 at the upper side and the lower side of the base 1, the base 1 is provided with a track 19 matched with the guide wheels 8, the track 19 is of an annular structure, and the base 1 is rotatably arranged on the support 4 through the matching between the guide wheels 8 and the track 19;
a gear ring 5 is fixedly arranged on the outer side of the base 1, a main gear 6 is rotatably arranged on the bracket 4, and the main gear 6 is meshed with the gear ring 5 and is used for driving the base 1 to rotate; the main gear 6 is rotatably arranged on the bracket 4 through a rotating shaft 17, the bracket 4 is fixedly provided with a first motor 7, and the output end of the first motor 7 is in transmission connection with the rotating shaft 17 through a bevel gear set;
specifically, in this embodiment, the bottom of the support 4 is further rotatably provided with a caster 18, and the caster 18 is a self-locking caster structure and is used for driving the device to move;
the machine frame 2 is provided with a spraying mechanism or a brushing mechanism for cleaning the equipment, the inner side of the machine frame 2 is also provided with a lifting mechanism for driving the spraying mechanism or the brushing mechanism to move, and when the base 1 rotates, the spraying mechanism or the brushing mechanism on the machine frame 2 continuously rotates to spray, brush and remove dust on the outer surface of the equipment;
the lifting mechanism comprises a screw 13 rotatably mounted on the frame 2, a threaded sleeve 12 is connected to the screw 13 in a threaded manner, one side of the threaded sleeve 12 is slidably connected with the frame 2, and the other side of the screw 12 is fixedly connected with the spraying mechanism or the brushing mechanism; a second motor 15 for driving the screw rod 13 to rotate is fixedly arranged on the outer side of the frame 2;
the spraying mechanism comprises a spray head 14 fixedly arranged on a threaded sleeve 12 and a water tank 9 fixedly arranged on the rack 2, a water pump 10 is fixedly arranged on the upper side of the water tank 9, one end of the water pump 10 is communicated with the inside of the water tank 9, and the other end of the water pump 10 is communicated with the spray head 14 through a water pipe 11 and used for supplying water to the spray head 14;
the brushing mechanism comprises an electric push rod 20 fixedly arranged on the threaded sleeve 12, and a dust removing brush 21 is fixedly arranged at the telescopic end of the electric push rod 20.
Example 2
Referring to fig. 1-3, in an embodiment of the present invention, an efficient dust removing apparatus for an electrical automation device includes a base 1 and a plurality of racks 2 installed on the base 1; the base 1 is of a circular ring structure formed by splicing two semicircular rings, a space for placing equipment is reserved in the middle of the base 1, two supports 4 are symmetrically arranged on the left side and the right side of the base 1, the supports 4 are of U-shaped structures, and the supports 4 are rotatably connected with the base 1;
specifically, in the embodiment, the two semicircular rings are fixedly connected through the connecting bolt 3, so that the two semicircular rings can be conveniently spliced and detached;
the support 4 is symmetrically and rotatably provided with two guide wheels 8 at the upper side and the lower side of the base 1, the base 1 is provided with a track 19 matched with the guide wheels 8, the track 19 is of an annular structure, and the base 1 is rotatably arranged on the support 4 through the matching between the guide wheels 8 and the track 19;
a gear ring 5 is fixedly arranged on the outer side of the base 1, a main gear 6 is rotatably arranged on the bracket 4, and the main gear 6 is meshed with the gear ring 5 and is used for driving the base 1 to rotate; the main gear 6 is rotatably arranged on the bracket 4 through a rotating shaft 17, the bracket 4 is fixedly provided with a first motor 7, and the output end of the first motor 7 is in transmission connection with the rotating shaft 17 through a bevel gear set;
specifically, in this embodiment, the bottom of the support 4 is further rotatably provided with a caster 18, and the caster 18 is a self-locking caster structure and is used for driving the device to move;
the machine frame 2 is provided with a spraying mechanism or a brushing mechanism for cleaning the equipment, the inner side of the machine frame 2 is also provided with a lifting mechanism for driving the spraying mechanism or the brushing mechanism to move, and when the base 1 rotates, the spraying mechanism or the brushing mechanism on the machine frame 2 continuously rotates to spray, brush and remove dust on the outer surface of the equipment;
the lifting mechanism comprises a screw 13 rotatably mounted on the frame 2, a threaded sleeve 12 is connected to the screw 13 in a threaded manner, one side of the threaded sleeve 12 is slidably connected with the frame 2, and the other side of the screw 12 is fixedly connected with the spraying mechanism or the brushing mechanism; a second motor 15 for driving the screw rod 13 to rotate is fixedly arranged on the outer side of the frame 2;
the spraying mechanism comprises a spray head 14 fixedly arranged on a threaded sleeve 12 and a water tank 9 fixedly arranged on the rack 2, a water pump 10 is fixedly arranged on the upper side of the water tank 9, one end of the water pump 10 is communicated with the inside of the water tank 9, and the other end of the water pump 10 is communicated with the spray head 14 through a water pipe 11 and used for supplying water to the spray head 14;
the brushing mechanism comprises an electric push rod 20 fixedly arranged on the threaded sleeve 12, and a dust removing brush 21 is fixedly arranged at the telescopic end of the electric push rod 20.
Referring to fig. 4-5, the present embodiment is different from embodiment 1 in that:
replace with dust removal mechanism spraying mechanism, dust removal mechanism include dust removal head and fixed mounting dust absorption fan in frame 2 on fixed mounting swivel nut 12, and dust absorption fan's inlet end passes through connecting pipe and dust removal head intercommunication, and the connecting pipe includes dust removal pipe 23 and two symmetries setting and the hose 22 of the 23 left and right sides of dust removal pipe, and coarse strainer 26, meticulous filter screen 25 and activated carbon layer 24 are installed in proper order along the air current flow direction in the inside of dust removal pipe 23 for carry out multiple filtration to dirty gas.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (8)
1. An efficient dust removal device of electrical automation equipment comprises a base (1) and a plurality of racks (2) arranged on the base (1); the device is characterized in that the base (1) is of a circular ring structure formed by splicing two semicircular rings, a space for placing equipment is reserved in the middle of the base (1), two supports (4) are symmetrically arranged on the left side and the right side of the base (1), the supports (4) are of a U-shaped structure, and the supports (4) are rotatably connected with the base (1); the machine frame (2) is provided with a spraying mechanism or a brushing mechanism for cleaning the equipment, and the inner side of the machine frame (2) is also provided with a lifting mechanism for driving the spraying mechanism or the brushing mechanism to move.
2. The high-efficiency dust removing device of the electric automation equipment as claimed in claim 1, wherein the two semicircular rings are fixedly connected by a connecting bolt (3).
3. The high-efficiency dust removing device of the electric automation equipment as claimed in claim 2, wherein the bracket (4) is provided with two guide wheels (8) symmetrically and rotatably arranged at the upper side and the lower side of the base (1), the base (1) is provided with a track (19) which is matched with the guide wheels (8), the track (19) is of an annular structure, and the base (1) is rotatably arranged on the bracket (4) through the matching between the guide wheels (8) and the track (19).
4. The high-efficiency dust removing device of the electric automation equipment as claimed in claim 3, wherein the outer side of the base (1) is fixedly provided with a gear ring (5), the bracket (4) is rotatably provided with a main gear (6), and the main gear (6) is meshed with the gear ring (5); the main gear (6) is rotatably installed on the support (4) through a rotating shaft (17), a first motor (7) is fixedly installed on the support (4), and the output end of the first motor (7) is in transmission connection with the rotating shaft (17) through a bevel gear set.
5. The high-efficiency dust removing device of the electric automation equipment as claimed in claim 4, wherein the bottom of the bracket (4) is also rotatably provided with a caster (18), and the caster (18) is of a self-locking caster structure.
6. The high-efficiency dust removing device of the electric automation equipment is characterized in that the lifting mechanism comprises a screw rod (13) rotatably installed on the frame (2), a threaded sleeve (12) is connected to the screw rod (13) in a threaded manner, one side of the threaded sleeve (12) is connected with the frame (2) in a sliding manner, and the other side of the screw rod (12) is fixedly connected with a spraying mechanism or a brushing mechanism; and a second motor (15) for driving the screw rod (13) to rotate is fixedly arranged on the outer side of the frame (2).
7. The high-efficiency dust removing device of the electric automation equipment as claimed in claim 6, wherein the spraying mechanism comprises a spray head (14) fixedly mounted on a threaded sleeve (12) and a water tank (9) fixedly mounted on the rack (2), a water pump (10) is fixedly mounted on the upper side of the water tank (9), one end of the water pump (10) is communicated with the inside of the water tank (9), the other end of the water pump (10) is communicated with the spray head (14) through a water pipe (11) to form a push rod (20), and a dust removing brush (21) is fixedly mounted at the telescopic end of the electric push rod (20).
8. The high-efficiency dust removing device of the electric automation equipment as claimed in claim 6 or 7, wherein the spraying mechanism is replaced by a dust removing mechanism, the dust removing mechanism comprises a dust removing head on a fixed installation screw sleeve (12) and a dust suction fan fixedly installed on the frame (2), the air inlet end of the dust suction fan is communicated with the dust removing head through a connecting pipe, the connecting pipe comprises a dust removing pipe (23) and two hoses (22) symmetrically arranged at the left side and the right side of the dust removing pipe (23), and a coarse filter screen (26), a fine filter screen (25) and an activated carbon layer (24) are sequentially installed inside the dust removing pipe (23) along the air flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010400823.9A CN111617991B (en) | 2020-05-13 | 2020-05-13 | High-efficient dust collector of electrical automation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010400823.9A CN111617991B (en) | 2020-05-13 | 2020-05-13 | High-efficient dust collector of electrical automation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111617991A true CN111617991A (en) | 2020-09-04 |
| CN111617991B CN111617991B (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010400823.9A Active CN111617991B (en) | 2020-05-13 | 2020-05-13 | High-efficient dust collector of electrical automation equipment |
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| Country | Link |
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| CN (1) | CN111617991B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160039923A (en) * | 2014-10-02 | 2016-04-12 | 주식회사 대명엔지니어링 | Nozzle assembly of cleaning machine for insulator or T-bar |
| CN107597676A (en) * | 2017-09-26 | 2018-01-19 | 齐鲁师范学院 | A kind of comprehensive chlorination equipment of sports equipment |
| CN108262295A (en) * | 2018-04-18 | 2018-07-10 | 镇江远大传动机械有限公司 | A kind of spline housing cleaning device |
| CN108310893A (en) * | 2018-04-24 | 2018-07-24 | 马鞍山市中天机械制造安装有限公司 | A kind of novel dust removing cabinet |
| CN208410520U (en) * | 2018-05-08 | 2019-01-22 | 范伟 | A kind of BMC injection mold cleaning device |
| CN209020126U (en) * | 2018-10-30 | 2019-06-25 | 江西瑞远实业有限公司 | A kind of furniture processing workshop dust separation system |
| CN109954693A (en) * | 2019-03-11 | 2019-07-02 | 合肥师范学院 | A kind of main frame cleaner |
| CN109985842A (en) * | 2017-12-30 | 2019-07-09 | 淮安金泽机电科技有限公司 | A kind of novel flow rate instrument cleaning device |
-
2020
- 2020-05-13 CN CN202010400823.9A patent/CN111617991B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160039923A (en) * | 2014-10-02 | 2016-04-12 | 주식회사 대명엔지니어링 | Nozzle assembly of cleaning machine for insulator or T-bar |
| CN107597676A (en) * | 2017-09-26 | 2018-01-19 | 齐鲁师范学院 | A kind of comprehensive chlorination equipment of sports equipment |
| CN109985842A (en) * | 2017-12-30 | 2019-07-09 | 淮安金泽机电科技有限公司 | A kind of novel flow rate instrument cleaning device |
| CN108262295A (en) * | 2018-04-18 | 2018-07-10 | 镇江远大传动机械有限公司 | A kind of spline housing cleaning device |
| CN108310893A (en) * | 2018-04-24 | 2018-07-24 | 马鞍山市中天机械制造安装有限公司 | A kind of novel dust removing cabinet |
| CN208410520U (en) * | 2018-05-08 | 2019-01-22 | 范伟 | A kind of BMC injection mold cleaning device |
| CN209020126U (en) * | 2018-10-30 | 2019-06-25 | 江西瑞远实业有限公司 | A kind of furniture processing workshop dust separation system |
| CN109954693A (en) * | 2019-03-11 | 2019-07-02 | 合肥师范学院 | A kind of main frame cleaner |
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| CN111617991B (en) | 2022-11-08 |
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