CN114602853B - Space large-scale rod-shaped antenna cleaning machine - Google Patents
Space large-scale rod-shaped antenna cleaning machine Download PDFInfo
- Publication number
- CN114602853B CN114602853B CN202210377585.3A CN202210377585A CN114602853B CN 114602853 B CN114602853 B CN 114602853B CN 202210377585 A CN202210377585 A CN 202210377585A CN 114602853 B CN114602853 B CN 114602853B
- Authority
- CN
- China
- Prior art keywords
- brush
- shell
- brush body
- hole
- antenna
- 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.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000009194 climbing Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 235000001968 nicotinic acid Nutrition 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/50—Cleaning by methods involving the use of tools involving cleaning of the cleaning members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Cleaning In General (AREA)
Abstract
The invention discloses a cleaning machine for a large-sized space rod-shaped antenna, which comprises a shell, a plurality of driving mechanisms, a plurality of connecting rods and a cleaning mechanism, wherein the shell is provided with a plurality of connecting rods; the shell is provided with an inner circular through hole, and a plurality of wheel notches are formed in the peripheral wall of the inner circular through hole; the driving mechanism comprises wheels, and the driving mechanism is arranged in the shell and extends out of the wheel groove to drive climbing; one end of each connecting rod is fixedly connected with the same end face of the shell, and the connecting rods are arranged around the circumference of the inner circular through hole; the cleaning mechanism comprises a brush body group and a brush power unit; the brush body groups are rotationally connected with the other end of the connecting rod in a mode of two groups, the brush body groups are annularly arranged around the circumference of the inner circle through hole, and the axial direction of the rotation center of the brush body groups is vertical to the axial direction of the connecting rod; the brush power units are respectively arranged on the connecting rods; the brush power unit is used for driving the brush body group to swing and clean; the machine cleans the antenna by applying the bionics principle, has a self-cleaning function, is simple to use and greatly improves the working efficiency.
Description
Technical Field
The invention relates to the field of rod antenna cleaning machines, in particular to a space large-scale rod antenna cleaning machine.
Background
In natural biological cleaning, the bee corner cleaner is a natural antenna cleaner, and the variable stiffness comb on the bee corner cleaner makes it almost unnecessary to deliberately maintain the bee corner cleaner after cleaning the antenna by the forelimbs.
The existing antenna cleaning machine is low in cleaning efficiency, a cleaning mechanism is required to be maintained frequently, the mechanism is difficult to disassemble, great trouble is brought to operators, meanwhile, the size is large, fine components are large, more working space is occupied, the antenna cleaning machine is easy to damage, maintenance cost is high, and therefore the existing antenna cleaning machine is low in cleaning efficiency.
Therefore, a technical scheme capable of solving the problem that the existing antenna cleaning machine is low in cleaning efficiency is urgently needed.
Disclosure of Invention
The invention aims to provide a space large-scale rod-shaped antenna cleaning machine so as to solve the problem of low cleaning efficiency of the traditional antenna cleaning machine.
In order to solve the technical problems, the invention provides a cleaning machine for a large-space rod-shaped antenna, which comprises a shell, a cleaning mechanism, a plurality of driving mechanisms and a plurality of connecting rods; the shell is provided with an inner circular through hole, and a plurality of wheel notches are formed in the peripheral wall of the inner circular through hole; the driving mechanism comprises wheels, the driving mechanism is installed in the shell, and the wheels extend out of the wheel slot and are used for driving climbing; one end of each connecting rod is fixedly connected with the same end face of the shell, and the connecting rods are arranged around the circumference of the inner circular through hole; the cleaning mechanism comprises a brush body assembly and a brush power unit; the brush body components are rotationally connected with the other end of the connecting rod in a mode of two groups, the brush body components are annularly arranged around the circumference side of the inner circular through hole, and the axial direction of the rotation center of the brush body components is perpendicular to the axial direction of the connecting rod; the brush power units are respectively arranged on the connecting rods; the brush power unit is used for driving the brush body assembly to swing and clean.
In one embodiment, a base is arranged in the shell; the driving mechanism further comprises a power motor and a tensioning unit; the power motor is in transmission connection with the wheels, and is slidably mounted on the base; the tensioning unit is used for pushing the wheel to slide out of the wheel notch.
In one embodiment, the shell comprises a guide rail and a limiting piece, the guide rail is mounted on the base, and the side wall of the guide rail is parallel to the groove wall of the wheel groove; the limiting piece is arranged at one end of the guide rail, which is close to the inner circular through hole; the power motor is slidably mounted on the guide rail.
In one embodiment, the tensioning unit comprises an elastic piece and a stop block, one end of the stop block is fixedly connected with the power motor, and the other end of the stop block is fixedly connected with one end of the elastic piece; the other end of the elastic piece is fixedly connected with the inner wall of the shell.
In one embodiment, the stop is an L-shaped stop.
In one embodiment, the connecting rod is provided with a driving wheel shaft, the middle part of the driving wheel shaft is rotatably arranged on the connecting rod, and the two brush body assemblies of the same group are respectively in transmission connection with the two ends of the driving wheel shaft; and the connecting rod is provided with a mounting seat.
In one embodiment, the brush body assembly includes a mounting plate and a plurality of brushes; one end of each brush is fixedly connected with one side of the mounting plate; one end of the mounting plate is provided with a flange ring, the flange ring is arranged back to the brush, and the flange ring is provided with a shaft pin hole; the shaft pin hole is in transmission connection with the driving wheel shaft.
In one embodiment, the mounting plate is a circular arc shaped plate; the brush is arranged on the inner circular side of the mounting plate; the flange is arranged on the outer circle side of the mounting plate in a surrounding mode.
In one embodiment, the brush power unit further comprises a brush motor, a pulley, and a belt; the brush motor is arranged on the mounting seat; the belt pulleys are arranged on the brush motor output shaft and the driving wheel shaft, and the belt is in transmission connection with the two belt pulleys.
The beneficial effects of the invention are as follows:
the brush body component is arranged, so that no dead angle is formed in cleaning; the energy accumulated in the cleaning process can be utilized to clean dirt adhered to the surface of the brush body, so that the self-cleaning brush has a self-cleaning function; the cleaning mechanism and the driving mechanism of the cleaning machine have higher component independence, are convenient to detach and replace, have simple structure and have extremely low maintenance cost; is beneficial to saving manpower and material resources and has extremely low cost.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall isometric view provided by the present invention;
FIG. 2 is a perspective view of a housing member provided by the present invention;
FIG. 3 is a perspective view of a drive mechanism provided by the present invention;
FIG. 4 is a schematic diagram of an assembled power motor and stop provided by the present invention;
FIG. 5 is a side view of a connecting rod provided by the present invention;
FIG. 6 is a schematic view of the installation of a brush power unit provided by the present invention;
FIG. 7 is a perspective view of a brush body assembly provided by the present invention;
fig. 8 is an enlarged view of a portion of a brush assembly according to the present invention.
The reference numerals are as follows:
1-a housing; 11-inner circular through holes; 12-wheel notch; 13-a base; 14-a guide rail; 15-limiting sheets;
2-a driving mechanism; 21-wheels; 22-a power motor; 23-tensioning units; 231-elastic members; 232-a stop;
3-connecting rods; 31-driving the wheel axle; 32-mounting seats;
4-a cleaning mechanism; 41-brushing a power unit; 411-brushing the motor; 412-a pulley; 413-a belt; 42-brush body assembly; 421-mounting plate; 422-a flange ring; 423-axle pin holes; 424-brushes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
One embodiment of a space-large rod antenna cleaning machine, shown in fig. 1, 5, 6 and 7, includes a housing 1, a cleaning mechanism 4, a plurality of drive mechanisms 2 and a plurality of connecting rods 3; the shell 1 is provided with an inner circular through hole 11, and a plurality of wheel notches 12 are formed in the peripheral wall of the inner circular through hole 11; the driving mechanism 2 comprises wheels 21, the driving mechanism 2 is arranged in the shell 1, and the wheels 21 extend out of the wheel notch 12 to drive climbing; one end of each connecting rod 3 is fixedly connected with the same end face of the shell 1, and the connecting rods 3 are arranged around the circumference of the inner circular through hole 11; the cleaning mechanism 4 comprises a brush body assembly 42 and a brush power unit 41; the brush body components 42 are rotationally connected with the other end of the connecting rod 3 in a two-in-one manner, the plurality of brush body components 42 are annularly arranged around the circumference of the inner circular through hole 11, and the axial direction of the rotation center of the brush body components 42 is perpendicular to the axial direction of the connecting rod 3; the brush power units 41 are respectively arranged on the connecting rods 3; the brush power unit 41 is used for driving the brush body assembly 42 to swing and clean.
When the antenna is cleaned in application, the antenna to be cleaned passes through a round hole formed by the inner round through hole 11 and the brush body assembly 42, the inner diameter formed by the brush body assembly 42 is smaller than the circle formed by the extending wheels 21, namely the circle formed by the extending wheels 21 is matched with the diameter of the antenna; the four wheels 21 mutually cooperate with each other to move and climb on the antenna, the brush body assembly 42 is driven by the brush power unit 41, and the brush body assembly 42 rotates around the end point of the connecting rod 3 to perform angle adjustment; the drive mechanisms 2 can be controlled to operate at different speeds, so that the space large-sized rod-shaped antenna cleaning machine can be wound around the antenna in a spiral way, and the brush body assembly 42 can also climb along the spiral way.
Further, as shown in fig. 2 and 3, a base 13 is provided in the housing 1; the drive mechanism 2 further comprises a power motor 22 and a tensioning unit 23; the power motor 22 is in transmission connection with the wheels 21, and the power motor 22 is slidably arranged on the base 13; the tensioning unit 23 is used to push the wheel 21 out of the wheel slot 12.
Further, as shown in fig. 2 and 3, the housing 1 includes a guide rail 14 and a limiting piece 15, the guide rail 14 is mounted on the base 13, and the side wall of the guide rail 14 is parallel to the groove wall of the wheel groove 12; the limiting piece 15 is arranged at one end of the guide rail 14 close to the inner circular through hole 11; the power motor 22 is slidably mounted on the rail 14.
When the space large-sized rod-shaped antenna cleaning machine is used, even if the surfaces of the wheels 21 are worn, the surfaces of the wheels 21 and the antenna can be kept clamped, so that climbing movement of the space large-sized rod-shaped antenna cleaning machine is more reliable.
Further, as shown in fig. 3 and 4, the tensioning unit 23 includes an elastic member 231 and a stopper 232, one end of the stopper 232 is fixedly connected with the power motor 22, and the other end of the stopper 232 is fixedly connected with one end of the elastic member 231; the other end of the elastic member 231 is fixedly connected with the inner wall of the housing 1.
When the antenna is applied, the elastic piece 231 is a spring piece, and is output to the stop block 232 through elastic force, so that the wheel 21 is pushed to slide on the guide rail 14, extend out of the wheel notch 12 and clamp the antenna; if necessary, the device can also be replaced by an electric telescopic cylinder to perform automatic control.
Further, in this embodiment, as shown in fig. 4, the stopper 232 is an L-shaped stopper 232.
When the antenna clamping device is applied, the L-shaped stop block 232 can be connected with the power motor 22, and meanwhile, the stress center is returned to the center of the wheel 21, so that the stress of the wheel 21 is better, and the antenna clamping effect is better.
Further, in this embodiment, as shown in fig. 1 and fig. 5, the connecting rod 3 has a driving axle 31, the middle part of the driving axle 31 is rotatably mounted on the connecting rod 3, and two brush assemblies 42 of the same group are respectively connected with two ends of the driving axle 31 in a transmission manner; the connecting rod 3 is provided with a mounting seat 32.
When the brush body assembly is applied, the driving wheel shaft 31 is rotatably arranged at one end of the connecting rod 3, a bearing is further arranged on the connecting rod 3, the driving wheel shaft 31 is arranged on the bearing, so that the rotation of the driving wheel shaft 31 is smoother, the driving wheel shaft 31 is driven to rotate by the brush power unit 41, and the brush body assembly 42 is driven to rotate by the driving wheel shaft 31.
Further, as shown in fig. 1, 7 and 8, the brush body assembly 42 includes a mounting plate 421 and a plurality of brushes 424; one end of the plurality of brushes 424 is fixedly connected with one side of the mounting plate 421; one end of the mounting plate 421 is provided with a flange ring 422, the flange ring 422 is arranged back to the brush 424, and the flange ring 422 is provided with a shaft pin hole 423; the axle pin hole 423 is in driving connection with the drive axle 31.
Further, in this embodiment, as shown in fig. 7, the mounting plate 421 is a circular arc plate; the brush 424 is mounted to the inner circular side of the mounting plate 421; the flange ring 422 is provided on the outer circumferential side of the mounting plate 421.
In application, the brush 424 is fixed by inserting the inner side surface of the circular ring surrounded by the mounting plate 421, and the brush 424 and the flange ring 422 are arranged oppositely; the shaft pin holes 423 are in transmission connection with the driving wheels 21 through the matching of the driving wheel shaft 31 and the bolt, and the brush body assembly 42 is also fixed, so that the brush body assembly 42 swings around the axis of the driving wheel shaft 31; the large-space rod-shaped antenna cleaning machine moves on the antenna and simultaneously the bristles of the brush 424 clean dirt on the surface of the antenna, and after the cleaning is finished, as the rod of the brush 424 is an elastic bendable rod, the bendable rod stores certain potential energy at the moment, the angle of the brush body assembly 42 is adjusted through the brush motor 411 on the connecting rod 3, so that the angle of the brush 424 is adjusted to enable the brush 424 to leave the antenna, the potential energy of the elastic rod is released, the dirt on the bristles is sprung away, and the cleaning mechanism 4 has a self-cleaning function.
Further, as shown in fig. 5 and 6, the brush power unit 41 further includes a brush motor 411, a pulley 412, and a belt 413; the brush motor 411 is mounted on the mount 32; the output shaft of the brush motor 411 and the driving wheel shaft 31 are respectively provided with a belt 413 wheel 412, and the belt 413 is in transmission connection with the two belt 413 wheels 412.
In application, the brush motor 411 may be a stepper motor, a servo motor, or a combination of a common motor and an angle sensor, so as to precisely control the swing of the brush assembly 42; if desired, the drive of the brush power unit 41 may be replaced by a belt drive with a gear drive, by replacing the pulley 412 with a gear, the motor may be positioned closer to the drive axle 31, or other direct or indirect drive means that may cause the brush body assembly 42 to rotate.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (5)
1. A cleaning machine for a large-sized rod-shaped antenna is characterized in that,
comprises a shell, a cleaning mechanism, a plurality of driving mechanisms and a plurality of connecting rods;
the shell is provided with an inner circular through hole, and a plurality of wheel notches are formed in the peripheral wall of the inner circular through hole;
the driving mechanism comprises wheels, the driving mechanism is installed in the shell, and the wheels extend out of the wheel slot and are used for driving climbing;
one end of each connecting rod is fixedly connected with the same end face of the shell, and the connecting rods are arranged around the circumference of the inner circular through hole;
the cleaning mechanism comprises a brush body assembly and a brush power unit;
the brush body components are rotationally connected with the other end of the connecting rod in a mode of two groups, the brush body components are annularly arranged around the circumference side of the inner circular through hole, and the axial direction of the rotation center of the brush body components is perpendicular to the axial direction of the connecting rod;
the brush power units are respectively arranged on the connecting rods; the brush power unit is used for driving the brush body assembly to swing and clean;
the middle part of the connecting rod is rotatably provided with a driving wheel shaft, and the two brush body assemblies in the same group are respectively in transmission connection with the two ends of the driving wheel shaft;
the connecting rod is provided with a mounting seat;
the brush body assembly comprises a mounting plate and a plurality of brushes;
one end of each brush is fixedly connected with one side of the mounting plate;
one end of the mounting plate is provided with a flange ring, the flange ring is arranged back to the brush, and the flange ring is provided with a shaft pin hole;
the shaft pin hole is in transmission connection with the driving wheel shaft;
the mounting plate is an arc-shaped plate;
the brush is arranged on the inner circular side of the mounting plate;
the flange is arranged on the outer circle side of the mounting plate in a surrounding mode;
the brush power unit further comprises a brush motor, a belt pulley and a belt;
the brush motor is arranged on the mounting seat;
the belt pulleys are arranged on the brush motor output shaft and the driving wheel shaft, and the belt is in transmission connection with the two belt pulleys;
the space large rod-shaped antenna cleaning machine is used for adjusting the angle of the brush body assembly through the brush motor on the connecting rod, so that the brush angle is adjusted to enable the brush to leave the antenna, and therefore dirt on the brush is sprung away.
2. The antenna cleaning machine of claim 1, wherein,
a base is arranged in the shell;
the driving mechanism further comprises a power motor and a tensioning unit;
the power motor is in transmission connection with the wheels, and is slidably mounted on the base;
the tensioning unit is used for pushing the wheel to slide out of the wheel notch.
3. The antenna cleaning machine of claim 2, wherein,
the shell comprises a guide rail and a limiting piece, the guide rail is arranged on the base, and the side wall of the guide rail is parallel to the groove wall of the wheel groove;
the limiting piece is arranged at one end of the guide rail, which is close to the inner circular through hole;
the power motor is slidably mounted on the guide rail.
4. An antenna cleaning machine according to claim 3 wherein,
the tensioning unit comprises an elastic piece and a stop block, one end of the stop block is fixedly connected with the power motor, and the other end of the stop block is fixedly connected with one end of the elastic piece;
the other end of the elastic piece is fixedly connected with the inner wall of the shell.
5. The antenna cleaning machine of claim 4, wherein,
the stop block is an L-shaped stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210377585.3A CN114602853B (en) | 2022-04-12 | 2022-04-12 | Space large-scale rod-shaped antenna cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210377585.3A CN114602853B (en) | 2022-04-12 | 2022-04-12 | Space large-scale rod-shaped antenna cleaning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114602853A CN114602853A (en) | 2022-06-10 |
| CN114602853B true CN114602853B (en) | 2023-07-21 |
Family
ID=81869302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210377585.3A Active CN114602853B (en) | 2022-04-12 | 2022-04-12 | Space large-scale rod-shaped antenna cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114602853B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115245918A (en) * | 2022-07-12 | 2022-10-28 | 中山大学 | Bionic peristaltic cleaning robot for large antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578892A (en) * | 2021-08-05 | 2021-11-02 | 内蒙古国领科技有限公司 | Wind power tower cylinder cleaning robot |
-
2022
- 2022-04-12 CN CN202210377585.3A patent/CN114602853B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114602853A (en) | 2022-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109894435B (en) | Automatic cleaning device for outer wall of pipeline | |
| CN114602853B (en) | Space large-scale rod-shaped antenna cleaning machine | |
| CN1531611A (en) | Drum type washing machine | |
| CN108311485B (en) | Cleaning device for accurate screwed pipe part | |
| CN217148116U (en) | Intelligent wire winding device | |
| DE10113660A1 (en) | Piezoelectric drive has cylindrical piezoelectric element of stator contacted by projections of mechanical coupling released periodically for rotation of rotor | |
| CN113680769A (en) | Intelligent cleaning equipment for automobile | |
| CN109779853A (en) | A kind of wind power tower drum automatic flushing device | |
| CN111604332B (en) | Water production pipeline dredging device for automatic surface water monitoring | |
| CN207615318U (en) | A kind of cleaning device of damper cylinder barrel | |
| CN113816209B (en) | Guiding device for winding prestressed steel strand | |
| CN110844704A (en) | Spun yarn winding mechanism | |
| CN214769335U (en) | Clamping device for pipe cutting | |
| CN210735875U (en) | Portable wire and cable using device | |
| CN216151928U (en) | Deburring grinding device | |
| CN113145380B (en) | Flat rope sizing device | |
| CN217656148U (en) | Charging butt joint device | |
| JP6568543B2 (en) | Axial transmission system | |
| CN101041161B (en) | Washing device of closed barrel | |
| CN109812995B (en) | Cleaning device for cleaning solar water heater | |
| CN211323462U (en) | Split type brush roller | |
| WO1994028823A1 (en) | Electromechanical toothbrush | |
| CN220785223U (en) | Vibration steel mesh cleaning device | |
| CN220803796U (en) | Electrostatic adsorption tail gas treatment device | |
| CN219024752U (en) | Cleaning device |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |