CN209318251U - A kind of lithium battery dust-extraction unit - Google Patents

A kind of lithium battery dust-extraction unit Download PDF

Info

Publication number
CN209318251U
CN209318251U CN201822133500.9U CN201822133500U CN209318251U CN 209318251 U CN209318251 U CN 209318251U CN 201822133500 U CN201822133500 U CN 201822133500U CN 209318251 U CN209318251 U CN 209318251U
Authority
CN
China
Prior art keywords
cleaning case
fixedly connected
dust cleaning
dust
movable plate
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
Application number
CN201822133500.9U
Other languages
Chinese (zh)
Inventor
马丽冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Jima Electronic Technology Co Ltd
Original Assignee
Guangzhou Jima Electronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Jima Electronic Technology Co Ltd filed Critical Guangzhou Jima Electronic Technology Co Ltd
Priority to CN201822133500.9U priority Critical patent/CN209318251U/en
Application granted granted Critical
Publication of CN209318251U publication Critical patent/CN209318251U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

The utility model discloses a kind of lithium battery dust-extraction units, including dust cleaning case, dust cleaning case is the hollow structure of a side opening, and hinge connection has chamber door at aperture position, movable plate is equipped in dust cleaning case, mobile bar and nose bar are respectively symmetrically fixedly connected in the two sides phase back side wall of movable plate, the inner wall of dust cleaning case, which corresponds to, offers matched sliding groove at the position of mobile bar, mobile bar is plugged in sliding groove far from one end of movable plate, and it is fixedly connected with spring, the other end of spring is fixedly connected on the slot bottom of sliding groove, nose bar runs through the side wall of dust cleaning case far from one end of movable plate and extends to its outside, and the side walls of nose bar and dust cleaning case connect, support plate is fixedly connected on the lateral wall of dust cleaning case, and driving motor is fixedly connected in support plate, the output shaft of driving motor is connected with cam.The utility model makes the dust removing effects of lithium battery more preferably, and efficiency of dust collection is higher.

Description

A kind of lithium battery dust-extraction unit
Technical field
The utility model relates to technical field of lithium batteries more particularly to a kind of lithium battery dust-extraction units.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that lithium battery, which is a kind of,.Due to Lithium battery has excellent performance, and present lithium battery has become mainstream, is all widely used in every field. Since the chemical characteristic of lithium battery is very active, lithium battery surface is needed in clean state, therefore lithium battery is needed before preservation It is dusted processing, to remove the dust being infected on lithium battery outer surface.
Dust-extraction unit in existing equipment, usually using the mode of air draught to remove the dust on lithium battery outer surface, but It is that some glue is sticked in the dust of lithium battery outer surface, the single mode by air draught is difficult to remove, and overall effect is very poor.
Utility model content
Purpose of the utility model is to solve the bad problem of lithium battery dust-extraction unit dust removing effects in the prior art, And a kind of lithium battery dust-extraction unit proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of lithium battery dust-extraction unit, including dust cleaning case, the dust cleaning case are the hollow structure of a side opening, and the position that is open The place's of setting hinge connection has a chamber door, is equipped with movable plate in the dust cleaning case, in the two sides phase back side wall of the movable plate respectively symmetrically It is fixedly connected with mobile bar and nose bar, the inner wall of the dust cleaning case, which corresponds to, offers matched sliding groove at the position of mobile bar, The mobile bar is plugged in sliding groove far from one end of movable plate, and is fixedly connected with spring, and the other end of the spring is solid Surely it is connected to the slot bottom of sliding groove, the nose bar runs through the side wall of dust cleaning case far from one end of movable plate and extends to its outside, And the side walls of nose bar and dust cleaning case connect, and are fixedly connected with support plate on the lateral wall of the dust cleaning case, and in support plate It is fixedly connected with driving motor, the output shaft of the driving motor is connected with cam, and the nose bar is installed close to one end of cam Have and is equipped with brush board with the matched idler wheel of cam, the lower section of the movable plate, passes through regulating mechanism between the brush board and movable plate Be connected, and the lower surface of brush board is connected with bristle, set below the brush board there are two fixture, two fixtures it is opposite Respectively symmetrically it is fixedly connected with bull stick and electric pushrod on side wall, the other end of the bull stick passes through first bearing and dust cleaning case Inner wall rotation connection, the lateral wall of the dust cleaning case are fixedly connected with rotating electric machine, the one end of the electric pushrod far from fixture It is fixedly connected with the output shaft of rotating electric machine, lateral wall of the dust cleaning case close to bottom is fixedly connected with vacuum cleaner, and dust suction The suction side of machine is connected with dust cleaning case, and hair dryer, the output end of the hair dryer are fixedly connected at the top of the dust cleaning case It is fixedly connected with guide duct, and guide duct is located in dust cleaning case, the lower surface of the guide duct is fixed to be communicated with multiple uniform points The jet thrust of cloth.
Preferably, the regulating mechanism includes threaded rod, and the threaded rod is rotatably connected on brush board by second bearing The other end of upper surface, the threaded rod through movable plate and upwardly extends, and threaded rod is threadedly coupled with movable plate, the brush The upper surface of plate is symmetrically fixedly connected with telescopic rod, and the other end of the telescopic rod is fixedly connected on the lower surface of movable plate.
Preferably, it is connected between the chamber door and dust cleaning case by lock body.
Preferably, sliding slot is offered on the opposite side wall in the two sides of the sliding groove, the mobile bar corresponds to the position of sliding slot The place of setting is fixedly connected with matched sliding block, and sliding block is slidably connected with sliding slot.
Preferably, the bristle is soft materials.
Preferably, the threaded rod is fixedly connected with handle far from one end of brush board.
Compared with prior art, the utility model provides a kind of lithium battery dust-extraction unit, have it is following the utility model has the advantages that
1, lithium battery dust-extraction unit, by the way that dust cleaning case, movable plate, mobile bar, nose bar, sliding groove, spring, driving is arranged Motor, cam, brush board, fixture, bull stick, electric pushrod, rotating electric machine, vacuum cleaner, hair dryer, guide duct and jet thrust, pass through Two fixtures clamp the lithium battery both ends to dedusting, and one of fixture is connected with electric pushrod, facilitate adjusting two The distance between fixture starts rotating electric machine, and then the lithium battery to dedusting is driven to rotate, and starting driving motor band moving cam turns Dynamic, actuated by cams nose bar slides the mobile bar for being connected with movable plate in sliding groove, and mobile bar is by sliding groove inner spring Tension force effect, so that movable plate be made to do bilateral reciprocation, movable plate drives brush board to move synchronously, to back and forth brush lithium battery The dust on surface, meanwhile, start vacuum cleaner and hair dryer, the wind of hair dryer blowout is delivered in guide duct, sprays via jet thrust Out, and then keep the dust removing effects of lithium battery more preferable, vacuum cleaner, which concentrates the dust in dust cleaning case, to be absorbed, so that the dedusting of lithium battery Better effect, efficiency of dust collection are higher.
2, the lithium battery dust-extraction unit, by setting movable plate, brush board, threaded rod and telescopic rod, rotation and movable plate spiral shell The threaded rod of line connection to adjust the height of brush board, and then is suitable for the lithium battery dedusting of different size, and telescopic rod is set It sets, prevents brush board from deflecting, ensure that the stability of brush board.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the utility model So that the dust removing effects of lithium battery are more preferably, efficiency of dust collection is higher.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of lithium battery dust-extraction unit structural schematic diagram;
Fig. 2 be the utility model proposes a kind of lithium battery dust-extraction unit dust cleaning case and chamber door coupling part structural representation Figure;
Fig. 3 is the enlarged drawing of part A in Fig. 1.
In figure: 1 dust cleaning case, 2 chamber doors, 3 movable plates, 4 mobile bars, 5 nose bars, 6 sliding grooves, 7 springs, 8 driving motors, 9 convex Wheel, 10 brush boards, 11 fixtures, 12 bull sticks, 13 electric pushrods, 14 rotating electric machines, 15 vacuum cleaners, 16 hair dryers, 17 guide ducts, 18 sprays Gas head, 19 threaded rods, 20 telescopic rods, 21 lock bodies, 22 sliding slots, 23 sliding blocks, 24 handles.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-3, a kind of lithium battery dust-extraction unit, including dust cleaning case 1, dust cleaning case 1 are the hollow structure of a side opening, And hinge connection has chamber door 2 at aperture position, and movable plate 3 is equipped in dust cleaning case 1, is distinguished in the two sides phase back side wall of movable plate 3 Symmetrically it is fixedly connected with mobile bar 4 and nose bar 5, the inner wall of dust cleaning case 1 corresponds to and offers matched sliding at the position of mobile bar 4 Slot 6, mobile bar 4 are plugged in sliding groove 6 far from one end of movable plate 3, and are fixedly connected with spring 7, and the other end of spring 7 is solid Surely it is connected to the slot bottom of sliding groove 6, nose bar 5 runs through the side wall of dust cleaning case 1 far from one end of movable plate 3 and extends to its outside, And nose bar 5 is connect with the side walls of dust cleaning case 1, and support plate is fixedly connected on the lateral wall of dust cleaning case 1, and solid in support plate Surely be connected with driving motor 8, the output shaft of driving motor 8 is connected with cam 9, nose bar 5 close to one end of cam 9 be equipped with it is convex 9 matched idler wheels are taken turns, the lower section of movable plate 3 is equipped with brush board 10, is connected between brush board 10 and movable plate 3 by regulating mechanism, And the lower surface of brush board 10 is connected with bristle, the lower section of brush board 10 is set there are two fixture 11, in the phase back side wall of two fixtures 11 Respectively symmetrically it is fixedly connected with bull stick 12 and electric pushrod 13, the other end of bull stick 12 is interior by first bearing and dust cleaning case 1 Wall rotation connection, the lateral wall of dust cleaning case 1 are fixedly connected with rotating electric machine 14, electric pushrod 13 one end and rotation far from fixture 11 The output shaft of rotating motor 14 is fixedly connected, and lateral wall of the dust cleaning case 1 close to bottom is fixedly connected with vacuum cleaner 15, and vacuum cleaner 15 Suction side be connected with dust cleaning case 1, the top of dust cleaning case 1 is fixedly connected with hair dryer 16, and the output end of hair dryer 16 is fixed It is connected with guide duct 17, and guide duct 17 is located in dust cleaning case 1, the lower surface fixation of guide duct 17 is communicated with multiple be uniformly distributed Jet thrust 18, the lithium battery both ends to dedusting are clamped by two fixtures 11, one of fixture 11 is connected with electricity Dynamic push rod 13, facilitates and adjusts the distance between two fixtures 11, starts rotating electric machine 14, and then the lithium battery to dedusting is driven to revolve Turn, starting driving motor 8 is rotated with moving cam 9, and cam 9 drives nose bar 5, makes the mobile bar 4 for being connected with movable plate 3 in sliding groove Sliding, tension force effect of the mobile bar 4 by 6 inner spring 7 of sliding groove in 6, so that movable plate 3 is made to do bilateral reciprocation, it is mobile Plate 3 drives brush board 10 to move synchronously, thus back and forth brush the dust on lithium battery surface, meanwhile, start vacuum cleaner 15 and hair dryer 16, the wind that hair dryer 16 is blown out is delivered in guide duct 17, is sprayed via jet thrust 18, and then make the dust removing effects of lithium battery more Good, vacuum cleaner 15, which concentrates the dust in dust cleaning case 1, to be absorbed, so that the dust removing effects of lithium battery are more preferably, efficiency of dust collection is higher.
Regulating mechanism includes threaded rod 19, and threaded rod 19 is rotatably connected on the upper surface of brush board 10, spiral shell by second bearing The other end of rasp bar 19 is through movable plate 3 and upwardly extends, and threaded rod 19 is threadedly coupled with movable plate 3, the upper table of brush board 10 Face is symmetrically fixedly connected with telescopic rod 20, and the other end of telescopic rod 20 is fixedly connected on the lower surface of movable plate 3, rotation and movement The threaded rod 19 that plate 3 is threadedly coupled to adjust the height of brush board 10, and then is suitable for the lithium battery dedusting of different size, stretches The setting of contracting bar 20 prevents brush board 10 from deflecting, and ensure that the stability of brush board 10.
It is connected between chamber door 2 and dust cleaning case 1 by lock body 21, facilitates the on and off of control chamber door 2.
Sliding slot 22, fixed company at the position of the corresponding sliding slot 22 of mobile bar 4 are offered on the opposite side wall in the two sides of sliding groove 6 It is connected to matched sliding block 23, and sliding block 23 is slidably connected with sliding slot 22, mobile bar 4 and sliding groove 6 is prevented to be detached from.
Bristle is soft materials, prevents from causing to damage to lithium battery.
Threaded rod 19 is fixedly connected with handle 24 far from one end of brush board 10, convenient for controlling the rotation of threaded rod 19.
In the utility model, the lithium battery both ends to dedusting are clamped by two fixtures 11, one of fixture 11 are connected with electric pushrod 13, facilitate and adjust the distance between two fixtures 11, start rotating electric machine 14, and then drive to dedusting Lithium battery rotation, starting driving motor 8 with moving cam 9 rotate, cam 9 drive nose bar 5, make the movement for being connected with movable plate 3 Bar 4 slides in sliding groove 6, tension force effect of the mobile bar 4 by 6 inner spring 7 of sliding groove, so that it is past so that movable plate 3 is done left and right Multiple movement, movable plate 3 drives brush board 10 to move synchronously, thus back and forth brush the dust on lithium battery surface, meanwhile, start vacuum cleaner 15 and hair dryer 16, the wind that hair dryer 16 is blown out is delivered in guide duct 17, is sprayed via jet thrust 18, and then make lithium battery Dust removing effects are more preferable, and vacuum cleaner 15, which concentrates the dust in dust cleaning case 1, to be absorbed, so that the dust removing effects of lithium battery are more preferably, dedusting It is more efficient;The threaded rod 19 being threadedly coupled with movable plate 3 is rotated, to adjust the height of brush board 10, and then is suitable for difference The lithium battery dedusting of specification, the setting of telescopic rod 20 prevent brush board 10 from deflecting, and ensure that the stability of brush board 10.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of lithium battery dust-extraction unit, including dust cleaning case (1), which is characterized in that the dust cleaning case (1) is in a side opening Hollow structure, and there is chamber door (2) hinge connection at aperture position, be equipped with movable plate (3) in the dust cleaning case (1), the movable plate (3) mobile bar (4) and nose bar (5), the inner wall pair of the dust cleaning case (1) are respectively symmetrically fixedly connected in two sides phase back side wall It answers and is offered at the position of mobile bar (4) matched sliding groove (6), the mobile bar (4) plugs far from the one end of movable plate (3) In sliding groove (6), and spring (7) are fixedly connected with, the other end of the spring (7) is fixedly connected on the slot of sliding groove (6) Bottom, the nose bar (5) runs through the side wall of dust cleaning case (1) far from the one end of movable plate (3) and extends to its outside, and nose bar (5) It is connect with the side walls of dust cleaning case (1), is fixedly connected with support plate on the lateral wall of the dust cleaning case (1), and in support plate It is fixedly connected with driving motor (8), the output shaft of the driving motor (8) is connected with cam (9), and the nose bar (5) is close to convex One end of wheel (9), which is equipped with, is equipped with brush board (10) with cam (9) matched idler wheel, the lower section of the movable plate (3), the brush board (10) it is connected between movable plate (3) by regulating mechanism, and the lower surface of brush board (10) is connected with bristle, the brush board (10) there are two setting below fixture (11), bull stick is respectively symmetrically fixedly connected in the phase back side wall of two fixtures (11) (12) it is rotatablely connected with electric pushrod (13), the other end of the bull stick (12) by the inner wall of first bearing and dust cleaning case (1), The lateral wall of the dust cleaning case (1) is fixedly connected with rotating electric machine (14), and the one of the electric pushrod (13) separate fixture (11) End is fixedly connected with the output shaft of rotating electric machine (14), and lateral wall of the dust cleaning case (1) close to bottom is fixedly connected with dust suction Machine (15), and the suction side of vacuum cleaner (15) is connected with dust cleaning case (1), is fixedly connected with and blows at the top of the dust cleaning case (1) The output end of blower (16), the hair dryer (16) is fixedly connected with guide duct (17), and guide duct (17) is located at dust cleaning case (1) Interior, the lower surface fixation of the guide duct (17) is communicated with multiple equally distributed jet thrusts (18).
2. a kind of lithium battery dust-extraction unit according to claim 1, which is characterized in that the regulating mechanism includes threaded rod (19), the threaded rod (19) is rotatably connected on the upper surface of brush board (10) by second bearing, the threaded rod (19) it is another One end is through movable plate (3) and upwardly extending, and threaded rod (19) is threadedly coupled with movable plate (3), the brush board (10) it is upper Surface is symmetrically fixedly connected with telescopic rod (20), and the other end of the telescopic rod (20) is fixedly connected on the following table of movable plate (3) Face.
3. a kind of lithium battery dust-extraction unit according to claim 1, which is characterized in that the chamber door (2) and dust cleaning case (1) Between be connected by lock body (21).
4. a kind of lithium battery dust-extraction unit according to claim 1, which is characterized in that the two sides phase of the sliding groove (6) It is offered on side wall sliding slot (22), is fixedly connected with matched cunning at the position of the mobile bar (4) corresponding sliding slot (22) Block (23), and sliding block (23) is slidably connected with sliding slot (22).
5. a kind of lithium battery dust-extraction unit according to claim 1, which is characterized in that the bristle is soft materials.
6. a kind of lithium battery dust-extraction unit according to claim 2, which is characterized in that the threaded rod (19) is far from brush board (10) one end is fixedly connected with handle (24).
CN201822133500.9U 2018-12-18 2018-12-18 A kind of lithium battery dust-extraction unit Active CN209318251U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822133500.9U CN209318251U (en) 2018-12-18 2018-12-18 A kind of lithium battery dust-extraction unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822133500.9U CN209318251U (en) 2018-12-18 2018-12-18 A kind of lithium battery dust-extraction unit

Publications (1)

Publication Number Publication Date
CN209318251U true CN209318251U (en) 2019-08-30

Family

ID=67727361

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822133500.9U Active CN209318251U (en) 2018-12-18 2018-12-18 A kind of lithium battery dust-extraction unit

Country Status (1)

Country Link
CN (1) CN209318251U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110404839A (en) * 2019-09-09 2019-11-05 云南省能源研究院有限公司 A kind of novel lithium battery dust-extraction unit
CN110899619A (en) * 2019-12-06 2020-03-24 绍兴集知汇信息科技有限公司 Compressor cylinder body casting process
CN111299207A (en) * 2019-12-24 2020-06-19 江苏欧达光学有限公司 Rotation type optical lens piece belt cleaning device
CN112077079A (en) * 2020-09-04 2020-12-15 深圳市汇泽激光科技有限公司 Cleaning device and method for ceramic surface coating
CN112718617A (en) * 2020-12-11 2021-04-30 山东富智大兴电机有限公司 Brushless motor dust collector
CN112792048A (en) * 2021-01-25 2021-05-14 尹国军 Cleaning system for surface of lithium battery shell
CN113281302A (en) * 2021-05-24 2021-08-20 深圳市贵航电子有限公司 Rapid measuring device for detecting NMP liquid concentration and operation method thereof
CN113668215A (en) * 2021-08-27 2021-11-19 常熟市宏芳针织服饰有限公司 Knitting steam wrinkle-removing treatment equipment capable of effectively removing condensed water

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110404839A (en) * 2019-09-09 2019-11-05 云南省能源研究院有限公司 A kind of novel lithium battery dust-extraction unit
CN110899619A (en) * 2019-12-06 2020-03-24 绍兴集知汇信息科技有限公司 Compressor cylinder body casting process
CN111299207A (en) * 2019-12-24 2020-06-19 江苏欧达光学有限公司 Rotation type optical lens piece belt cleaning device
CN112077079A (en) * 2020-09-04 2020-12-15 深圳市汇泽激光科技有限公司 Cleaning device and method for ceramic surface coating
CN112718617A (en) * 2020-12-11 2021-04-30 山东富智大兴电机有限公司 Brushless motor dust collector
CN112792048A (en) * 2021-01-25 2021-05-14 尹国军 Cleaning system for surface of lithium battery shell
CN113281302A (en) * 2021-05-24 2021-08-20 深圳市贵航电子有限公司 Rapid measuring device for detecting NMP liquid concentration and operation method thereof
CN113281302B (en) * 2021-05-24 2022-06-28 深圳市贵航电子有限公司 Rapid measuring device for detecting NMP liquid concentration and operation method thereof
CN113668215A (en) * 2021-08-27 2021-11-19 常熟市宏芳针织服饰有限公司 Knitting steam wrinkle-removing treatment equipment capable of effectively removing condensed water

Similar Documents

Publication Publication Date Title
CN209318251U (en) A kind of lithium battery dust-extraction unit
CN207592309U (en) A kind of cleaning of insulator and apparatus for examination and repair
CN208743113U (en) It is a kind of for carrying out cleansing double sided device to pcb board
CN115039963A (en) Novel hair drier based on toothless slotless high-speed motor and use method thereof
CN209318364U (en) A kind of Multifunctional air tube cleaning robot
CN208230362U (en) A kind of dust-extraction unit of dust removal machine
CN108161656A (en) A kind of auto parts processing grinding device
CN107740256A (en) A kind of intelligent heating removes mould drying machine
CN209174441U (en) A kind of electric box automatic dust collection device
CN218940464U (en) Ventilating and heat-dissipating device for indoor power distribution cabinet
CN109662644A (en) A kind of adsorbent equipment that can clear up dust automatically
CN208415172U (en) A kind of sweeping machine cleaning mechanism
CN208275800U (en) A kind of photograph dust removal device
CN108973462A (en) A kind of assistant robot
CN108828986A (en) Household floor-sweeping machine device people
CN209027048U (en) A kind of frame structure of air-conditining
CN209476780U (en) A kind of electrostatic equilibrium cleaning machine
CN207887549U (en) A kind of sound equipment surface cleaning apparatus
CN208745627U (en) A kind of dedicated timber automatic carving machine
CN219729128U (en) Storage device is used in ceramic capacitor production
CN108338741A (en) A kind of Efficient dust collector
CN108324183A (en) A kind of dust exhaust apparatus
CN220985158U (en) Dehumidification mechanism of electric power cabinet
CN110217027A (en) A kind of carpenter's intelligent carving machine
CN209712748U (en) A kind of adsorbent equipment that can clear up dust automatically

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant