CN109462966A - An electronic information anti-jamming device - Google Patents
An electronic information anti-jamming device Download PDFInfo
- Publication number
- CN109462966A CN109462966A CN201811570610.XA CN201811570610A CN109462966A CN 109462966 A CN109462966 A CN 109462966A CN 201811570610 A CN201811570610 A CN 201811570610A CN 109462966 A CN109462966 A CN 109462966A
- Authority
- CN
- China
- Prior art keywords
- electronic information
- information anti
- main body
- fixedly connected
- jamming
- 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.)
- Granted
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 2
- 241000883990 Flabellum Species 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明公开了一种电子信息抗干扰器，包括电子信息抗干扰主体，所述电子信息抗干扰主体的两侧均开设有两个散热孔，所述电子信息抗干扰主体的内壁通过散热孔固定连接有吸风扇和排风扇。本发明通过散热孔设置吸风扇和排风扇，吸风扇和排风扇中的风叶转动，带动固定杆、连接杆和啮合齿转动，限位板、螺纹杆和滚轮将转动筒转动连接在电子信息抗干扰主体的两侧，转动筒通过防尘网将散热孔罩住，啮合齿跟随连接杆转动一周与环形齿条啮合一段距离，从而带动环形齿条转动一定的角度，从而在吸风扇吸风使防尘网上吸附灰尘的位置移动到排风扇排风处，将灰尘除去，达到了散热的同时防止长时间使用防尘网被灰尘堵塞的效果。
The invention discloses an electronic information anti-jamming device, comprising an electronic information anti-jamming main body, two heat dissipation holes are opened on both sides of the electronic information anti-jamming main body, and the inner wall of the electronic information anti-jamming main body is fixed by the heat dissipation holes A suction fan and an exhaust fan are connected. In the invention, the suction fan and the exhaust fan are arranged through the heat dissipation holes, the blades in the suction fan and the exhaust fan rotate, and the fixed rod, the connecting rod and the meshing teeth are driven to rotate, and the limit plate, the threaded rod and the roller connect the rotating cylinder to the electronic information anti-interference. On both sides of the main body, the rotating cylinders cover the heat dissipation holes through the dust-proof net, and the meshing teeth follow the connecting rod to rotate for a circle to mesh with the ring rack for a certain distance, thereby driving the ring rack to rotate at a certain angle, so as to prevent the air from being sucked by the suction fan. The position where the dust net absorbs the dust is moved to the exhaust fan to remove the dust, which achieves the effect of dissipating heat and preventing the dust net from being blocked by dust for a long time.
Description
Technical field
The present invention relates to electronic information technical field, specially a kind of electronic information suppressor.
Background technique
Suppressor is the best auxiliary tool for solving interference problem appeared in equipment operation.Suppressor is main at present
There are two types of modes: a kind of is exactly this anti-interference mode of amplification, and in principle, this suppressor can not eliminate interference, but
Really the amplitude of interference signal can be effectively reduced；Another is the anti-interference mode of shift frequency, this kind of mode can be solved preferably
It certainly interferes, therefore, suppressor is widely used.But present electronic information suppressor on the market, only
It is radiated by opening up a heat release hole, dust is easy to enter in device by heat release hole, causes device aging, needs to carry out
It improves.
Summary of the invention
The purpose of the present invention is to provide a kind of electronic information suppressor, has and accumulate the excellent of dust when preventing heat dissipation
Point solves electronic information suppressor now on the market, radiates merely by a heat release hole is opened up, and dust holds
The problem of easily being entered in device by heat release hole, cause device aging.
To achieve the above object, the invention provides the following technical scheme: a kind of electronic information suppressor, including e-mail
Anti-interference main body is ceased, the two sides of the anti-interference main body of electronic information are opened up there are two heat release hole, and the electronic information is anti-dry
The inner wall for disturbing main body is fixedly connected with blower fan and exhaust fan by heat release hole.
Fixed link is fixedly connected at the axle center of the blower fan and exhaust fan fan blade, the surface of the fixed link is fixed to be connected
It is connected to connecting rod, one end far from fixed link is fixedly connected with engaging tooth, the anti-interference master of electronic information in the connecting rod
The two sides of body are fixedly connected to four limit plates, and the opposite face of four limit plates is overlapped with rotary cylinder, remote on the limit plate
Side from rotary cylinder offers tapped through hole, and the inner wall of the limit plate is threaded with threaded rod by tapped through hole, institute
It states one end on threaded rod close to rotary cylinder and is rotatably connected to idler wheel, the surface of the idler wheel is contacted with the surface of rotary cylinder, institute
The inner surface for stating rotary cylinder is fixedly connected with annular rack, and the surface of the engaging tooth is engaged with the surface of annular rack, described
The inner surface of rotary cylinder is fixedly connected with Air Filter.
Preferably, the quantity that the anti-interference body side of the electronic information opens up heat release hole is no less than two.
Preferably, the surface that the limit plate is contacted with rotary cylinder is fixedly connected with smooth tablets.
Preferably, one end on the threaded rod far from idler wheel is fixedly connected with rubber handle.
Preferably, the bottom of the anti-interference main body of the electronic information is fixedly connected with high friction feet.
Compared with prior art, beneficial effects of the present invention are as follows:
Blower fan and exhaust fan is arranged by heat release hole in the present invention, the fan blade rotation in blower fan and exhaust fan, blower fan
For the air draught into electronic information anti-interference main body, exhaust fan is used for the gas in the anti-interference main body of electronic information to outlet,
Blower fan is identical with the direction that exhaust fan flabellum rotates, and drives fixed link, connecting rod and engaging tooth rotation, limit plate, threaded rod
Rotary cylinder is rotatably connected on to the two sides of the anti-interference main body of electronic information with idler wheel, rotary cylinder will radiate escutcheon by Air Filter
Firmly, engaging tooth follows connecting rod to rotate one week and engages a distance with annular rack, so that annular rack be driven to rotate centainly
Angle, annular rack drive rotary cylinder and Air Filter to rotate certain angle, rotate rotary cylinder slowly, thus inhaling
Fan air draught is moved to the position that dust is adsorbed on Air Filter at exhaust fan air draft, and dust is removed, and has reached the same of heat dissipation
When prevent the effect blocked by dust using Air Filter for a long time.
Detailed description of the invention
Fig. 1 is top view of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is the side view of present invention removal Air Filter；
Fig. 4 is the enlarged diagram of structure sectional view at A in Fig. 3.
In figure: the anti-interference main body of 1- electronic information, 2- heat release hole, 3- blower fan, 4- exhaust fan, 5- fixed link, 6- connection
Bar, 7- engaging tooth, 8- limit plate, 9- rotary cylinder, 10- tapped through hole, 11- threaded rod, 12- idler wheel, 13- annular rack, 14- are anti-
Dirt net, 15- smooth tablets, 16- rubber handle, 17- high friction feet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to Fig.1 to Fig.3, the present invention provides a kind of technical solution: a kind of electronic information suppressor, including e-mail
Anti-interference main body 1 is ceased, for the anti-interference main body 1 of electronic information for preventing electronic information equipment to be interfered, electronic information is anti-interference
The bottom of main body 1 is fixedly connected with high friction feet 17, and the setting of height friction feet 17, which facilitates, places the anti-interference master of electronic information
Body 1, the two sides of the anti-interference main body 1 of electronic information are opened up there are two heat release hole 2, and the inner wall of the anti-interference main body 1 of electronic information is logical
It crosses the installation blower fan 3 of heat release hole 2 and exhaust fan 4, the quantity that anti-interference 1 side of main body of electronic information opens up heat release hole 2 is no less than
Two, with no restrictions to the quantity of heat release hole 2, to open up the heat release hole 2 for being adapted quantity according to the thermal diffusivity that device needs
It radiates, the inner wall of electronic information anti-interference main body 1 is fixedly connected with blower fan 3 and exhaust fan 4 by heat release hole 2, inhales
Fan 3 is used for the air draught into electronic information anti-interference main body 1, and exhaust fan 4 is used for the gas in the anti-interference main body 1 of electronic information
To outlet, blower fan 3 is identical with the direction that 4 flabellum of exhaust fan rotates.
Fixed link 5, blower fan 3 are fixedly connected at the axle center of 4 fan blade of blower fan 3 and exhaust fan referring to FIG. 1 to FIG. 4,
Fan blade rotation is driven with exhaust fan 4, so that fixed link 5 be driven to rotate, the surface of fixed link 5 is fixedly connected with connecting rod 6, connects
Bar 6 follows the rotation of fixed link 5 that engaging tooth 7 is driven to rotate, and one end in connecting rod 6 far from fixed link 5 is fixedly connected with engaging tooth
7, the two sides of the anti-interference main body 1 of electronic information are fixedly connected to four limit plates 8, and four limit plates 8, which rotate rotary cylinder 9, to be connected
It connects in the two sides of the anti-interference main body 1 of electronic information, the opposite face of four limit plates 8 is overlapped with rotary cylinder 9, and rotary cylinder 9 will radiate
Hole 2 covers, and the surface that limit plate 8 is contacted with rotary cylinder 9 is fixedly connected with smooth tablets 15, reduces frictional dissipation between the two,
Side on limit plate 8 far from rotary cylinder 9 offers tapped through hole 10, and limit plate 8 is threadedly coupled screw thread by tapped through hole 10
The inner wall of bar 11, limit plate 8 is threaded with threaded rod 11 by tapped through hole 10, and threaded rod 11 is for preventing rotary cylinder 9 de-
From limit plate 8, rotary cylinder 9 is limited in four limit plates 8, one end on threaded rod 11 far from idler wheel 12 is fixedly connected with rubber
Glue handle 16, the setting of rubber handle 16 turn on threaded rod 11 close to one end of rotary cylinder 9 for easily rotating threaded rod 11
Dynamic to be connected with idler wheel 12, rotary cylinder 9 is limited in four limit plates 8 by threaded rod 11 by idler wheel 12, and rotary cylinder 9 rolls when rotating
Wheel 12 rotary cylinder 9 surface pivots, prevent from generating static friction between more than 9 threaded rod 11 of rotary cylinder, the surface of idler wheel 12 with turn
The surface contact of dynamic cylinder 9, the inner surface of rotary cylinder 9 are fixedly connected with annular rack 13, the surface of engaging tooth 7 and annular rack 13
Surface engagement, engaging tooth 7 follows connecting rod 6 to rotate and engages a distance with annular rack 13 in one week, to drive annular tooth
Item 13 rotates certain angle, and annular rack 13 drives rotary cylinder 9 to rotate certain angle, turns rotary cylinder 9 slowly
It is dynamic, to make the position for adsorbing dust on Air Filter 14 be moved at 4 air draft of exhaust fan in 3 air draught of blower fan, dust is removed,
So can prevent Air Filter 14 from being blocked by dust, the inner surface of rotary cylinder 9 is fixedly connected with Air Filter 14, to heat release hole 2 into
Row is dust-proof.
Working principle: this kind of electronic information suppressor is in use, when device starts heat dissipation, blower fan 3 and exhaust fan 4
In fan blade rotation, blower fan 3 is used for the air draught into electronic information anti-interference main body 1, and exhaust fan 4 is used for electronic information is anti-dry
The gas in main body 1 is disturbed to outlet, blower fan 3 is identical with the direction that 4 flabellum of exhaust fan rotates, and drives fixed link 5, connecting rod 6
It is rotated with engaging tooth 7, rotary cylinder 9 is rotatably connected on the anti-interference main body 1 of electronic information by limit plate 8, threaded rod 11 and idler wheel 12
Two sides, rotary cylinder 9 covered heat release hole 2 by Air Filter 14, and engaging tooth 7 follows connecting rod 6 to rotate one week and annular rack
13 engagement a distances, so that annular rack 13 be driven to rotate certain angle, annular rack 13 drives rotary cylinder 9 and Air Filter
The certain angle of 14 rotations, rotates rotary cylinder 9 slowly, to make to adsorb ash on Air Filter 14 in 3 air draught of blower fan
The position of dirt is moved at 4 air draft of exhaust fan, and dust is removed, and can so prevent from using for a long time while playing heat dissipation
Air Filter 14 is blocked by dust.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570610.XA CN109462966B (en) | 2018-12-21 | 2018-12-21 | An electronic information anti-jamming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570610.XA CN109462966B (en) | 2018-12-21 | 2018-12-21 | An electronic information anti-jamming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109462966A true CN109462966A (en) | 2019-03-12 |
| CN109462966B CN109462966B (en) | 2020-10-02 |
Family
ID=65614153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570610.XA Active CN109462966B (en) | 2018-12-21 | 2018-12-21 | An electronic information anti-jamming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109462966B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970878A (en) * | 2020-09-09 | 2020-11-20 | 濮阳市立圆汽车电器有限公司 | Dustproof effectual on-vehicle dc-to-ac converter and dustproof construction |
| CN113991488A (en) * | 2021-11-11 | 2022-01-28 | 安徽锡恩电气科技有限责任公司 | Combined power distribution cabinet |
| CN115500056A (en) * | 2022-09-27 | 2022-12-20 | 深圳市岩溪科技有限公司 | Outdoor traffic signal controller |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130189916A1 (en) * | 2012-01-20 | 2013-07-25 | Delta Electronics, Inc. | Rack system and ventilation apparatus thereof |
| US20130201632A1 (en) * | 2012-02-06 | 2013-08-08 | Wistron Corporation | Connection port module and an electronic device incorporating the same |
| CN206441087U (en) * | 2017-01-13 | 2017-08-25 | 天津中天伟鹏科技有限公司 | A kind of computer mainframe with air filter with deashing function |
| CN207281695U (en) * | 2017-10-16 | 2018-04-27 | 王占立 | A kind of computer heat radiating device |
| CN207320589U (en) * | 2017-10-27 | 2018-05-04 | 国网山东省电力公司蓬莱市供电公司 | A kind of dustproof electric cabinet |
| CN207611328U (en) * | 2017-12-11 | 2018-07-13 | 国家电网公司 | A mobile fan dust-removing and heat-dissipating chassis for computers |
| CN208016213U (en) * | 2018-03-22 | 2018-10-26 | 嘉善正福光伏能源科技有限公司 | A kind of radiator of new energy battery pack |
| CN208035997U (en) * | 2018-04-12 | 2018-11-02 | 深圳爱易瑞科技有限公司 | A kind of wireless charging device convenient for heat dissipation |
| CN208061777U (en) * | 2018-04-02 | 2018-11-06 | 河南宝泉电力设备制造有限公司 | A kind of underground type Intelligent box type transformer |
| CN208112830U (en) * | 2018-05-11 | 2018-11-16 | 武汉通用联合科技有限公司 | Dust-protection type EOC terminal equipment |
| CN208142584U (en) * | 2018-05-28 | 2018-11-23 | 陈逸丹 | A kind of power distribution cabinet with deashing function |
| CN208241100U (en) * | 2018-05-18 | 2018-12-14 | 长沙华悦机械设备有限公司 | A kind of intelligence JP cabinet |
| CN208241151U (en) * | 2018-04-27 | 2018-12-14 | 湖南城建职业技术学院 | Electrical equipment energy saver |
-
2018
- 2018-12-21 CN CN201811570610.XA patent/CN109462966B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130189916A1 (en) * | 2012-01-20 | 2013-07-25 | Delta Electronics, Inc. | Rack system and ventilation apparatus thereof |
| US20130201632A1 (en) * | 2012-02-06 | 2013-08-08 | Wistron Corporation | Connection port module and an electronic device incorporating the same |
| TWI486745B (en) * | 2012-02-06 | 2015-06-01 | Wistron Corp | Transmission port module and electronic device |
| CN206441087U (en) * | 2017-01-13 | 2017-08-25 | 天津中天伟鹏科技有限公司 | A kind of computer mainframe with air filter with deashing function |
| CN207281695U (en) * | 2017-10-16 | 2018-04-27 | 王占立 | A kind of computer heat radiating device |
| CN207320589U (en) * | 2017-10-27 | 2018-05-04 | 国网山东省电力公司蓬莱市供电公司 | A kind of dustproof electric cabinet |
| CN207611328U (en) * | 2017-12-11 | 2018-07-13 | 国家电网公司 | A mobile fan dust-removing and heat-dissipating chassis for computers |
| CN208016213U (en) * | 2018-03-22 | 2018-10-26 | 嘉善正福光伏能源科技有限公司 | A kind of radiator of new energy battery pack |
| CN208061777U (en) * | 2018-04-02 | 2018-11-06 | 河南宝泉电力设备制造有限公司 | A kind of underground type Intelligent box type transformer |
| CN208035997U (en) * | 2018-04-12 | 2018-11-02 | 深圳爱易瑞科技有限公司 | A kind of wireless charging device convenient for heat dissipation |
| CN208241151U (en) * | 2018-04-27 | 2018-12-14 | 湖南城建职业技术学院 | Electrical equipment energy saver |
| CN208112830U (en) * | 2018-05-11 | 2018-11-16 | 武汉通用联合科技有限公司 | Dust-protection type EOC terminal equipment |
| CN208241100U (en) * | 2018-05-18 | 2018-12-14 | 长沙华悦机械设备有限公司 | A kind of intelligence JP cabinet |
| CN208142584U (en) * | 2018-05-28 | 2018-11-23 | 陈逸丹 | A kind of power distribution cabinet with deashing function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970878A (en) * | 2020-09-09 | 2020-11-20 | 濮阳市立圆汽车电器有限公司 | Dustproof effectual on-vehicle dc-to-ac converter and dustproof construction |
| CN111970878B (en) * | 2020-09-09 | 2021-06-11 | 濮阳市立圆汽车电器有限公司 | Vehicle-mounted inverter with dustproof structure |
| CN113991488A (en) * | 2021-11-11 | 2022-01-28 | 安徽锡恩电气科技有限责任公司 | Combined power distribution cabinet |
| CN115500056A (en) * | 2022-09-27 | 2022-12-20 | 深圳市岩溪科技有限公司 | Outdoor traffic signal controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109462966B (en) | 2020-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109462966A (en) | An electronic information anti-jamming device | |
| CN109996402B (en) | A multimedia device for smart home | |
| CN206717598U (en) | Noise reducing type sanding machine | |
| CN105370509B (en) | The clearing apparatus of wind driven generator unit yaw system | |
| CN109732477A (en) | A door panel dust-free grinding device for paint-free doors | |
| CN110989807A (en) | Computer host computer part dust removal heat abstractor | |
| CN206224321U (en) | A kind of computer dust guard | |
| CN205370868U (en) | Cleaning device of wind generating set driftage system | |
| CN2701589Y (en) | Grinding disc with improved structure | |
| CN107984393A (en) | One kind is easy to dust suction noise control formula sander | |
| CN217081211U (en) | A ventilated heat dissipation brake disc | |
| CN206795584U (en) | A kind of abrasive machine | |
| CN109301713B (en) | A power control cabinet | |
| CN114568997A (en) | Dust collecting equipment for construction | |
| CN219388185U (en) | An automatic dust removal type centrifugal fan | |
| CN207858618U (en) | One kind being convenient for dust suction noise control formula sander | |
| CN215687458U (en) | A floating dust-proof mechanism applied to a high throwing machine | |
| CN207983063U (en) | a polishing device | |
| CN218609916U (en) | Sander with powder discharge device | |
| CN209808221U (en) | a vacuuming device | |
| CN218556486U (en) | Wall grinding device | |
| CN221735792U (en) | Polishing device for decoration materials | |
| CN215585924U (en) | Washing air device | |
| CN217371955U (en) | A kind of dust removal device for grinding and grinding friction plate | |
| CN216127190U (en) | Handheld electric pick with dustproof function |
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 |