CN111419026A - Height-adjustable's teaching display device for education - Google Patents
Height-adjustable's teaching display device for education Download PDFInfo
- Publication number
- CN111419026A CN111419026A CN202010394305.0A CN202010394305A CN111419026A CN 111419026 A CN111419026 A CN 111419026A CN 202010394305 A CN202010394305 A CN 202010394305A CN 111419026 A CN111419026 A CN 111419026A
- Authority
- CN
- China
- Prior art keywords
- air duct
- fixedly connected
- side wall
- frame body
- rotating shaft
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000010405 clearance mechanism Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- 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
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010394305.0A CN111419026B (en) | 2020-05-11 | 2020-05-11 | Height-adjustable's teaching display device for education |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010394305.0A CN111419026B (en) | 2020-05-11 | 2020-05-11 | Height-adjustable's teaching display device for education |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111419026A true CN111419026A (en) | 2020-07-17 |
CN111419026B CN111419026B (en) | 2021-08-03 |
Family
ID=71555085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010394305.0A Expired - Fee Related CN111419026B (en) | 2020-05-11 | 2020-05-11 | Height-adjustable's teaching display device for education |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111419026B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112240462A (en) * | 2020-11-25 | 2021-01-19 | 辽宁省交通高等专科学校 | Remote teaching device based on cloud calculates |
CN112709914A (en) * | 2020-12-16 | 2021-04-27 | 河南艺术职业学院 | New media mobile news spreading device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6330732B1 (en) * | 2000-07-19 | 2001-12-18 | Te-Hsi Liu | Dust collect device for an eraser |
CN107952703A (en) * | 2017-10-16 | 2018-04-24 | 安徽泰格电气科技股份有限公司 | A kind of electric power cabinet dust-extraction unit |
CN208027252U (en) * | 2018-03-06 | 2018-10-30 | 广州云强信息科技有限公司 | A kind of cloud computing server of good dustproof effect |
CN209544878U (en) * | 2019-04-01 | 2019-10-25 | 青岛联合智造科技有限公司 | A kind of dust control by ventilation power distribution cabinet |
CN210136565U (en) * | 2019-01-21 | 2020-03-10 | 文莹 | Chinese teaching presentation device |
-
2020
- 2020-05-11 CN CN202010394305.0A patent/CN111419026B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6330732B1 (en) * | 2000-07-19 | 2001-12-18 | Te-Hsi Liu | Dust collect device for an eraser |
CN107952703A (en) * | 2017-10-16 | 2018-04-24 | 安徽泰格电气科技股份有限公司 | A kind of electric power cabinet dust-extraction unit |
CN208027252U (en) * | 2018-03-06 | 2018-10-30 | 广州云强信息科技有限公司 | A kind of cloud computing server of good dustproof effect |
CN210136565U (en) * | 2019-01-21 | 2020-03-10 | 文莹 | Chinese teaching presentation device |
CN209544878U (en) * | 2019-04-01 | 2019-10-25 | 青岛联合智造科技有限公司 | A kind of dust control by ventilation power distribution cabinet |
Non-Patent Citations (1)
Title |
---|
冯屾 等: "陶瓷基复合材料旋转超声加工特性研究", 《工具技术》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112240462A (en) * | 2020-11-25 | 2021-01-19 | 辽宁省交通高等专科学校 | Remote teaching device based on cloud calculates |
CN112709914A (en) * | 2020-12-16 | 2021-04-27 | 河南艺术职业学院 | New media mobile news spreading device |
Also Published As
Publication number | Publication date |
---|---|
CN111419026B (en) | 2021-08-03 |
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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 | ||
CB03 | Change of inventor or designer information |
Inventor after: Wu Jinyu Inventor after: Qi Liang Inventor after: Sun Juanjuan Inventor after: Feng Shen Inventor before: Qi Liang Inventor before: Sun Juanjuan Inventor before: Feng Shen |
|
CB03 | Change of inventor or designer information | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20210714 Address after: 510520 19 Huamei Road, Tianhe District, Guangzhou, Guangdong Applicant after: Guangzhou Xinhua College Address before: 475000 Yellow River Water Conservancy Vocational and technical college, No.1, Tokyo Avenue, Longting District, Kaifeng City, Henan Province Applicant before: Qi Liang |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210803 |
|
CF01 | Termination of patent right due to non-payment of annual fee |