CN108897191A - 一种教育用投影布固定装置 - Google Patents
一种教育用投影布固定装置 Download PDFInfo
- Publication number
- CN108897191A CN108897191A CN201810993000.4A CN201810993000A CN108897191A CN 108897191 A CN108897191 A CN 108897191A CN 201810993000 A CN201810993000 A CN 201810993000A CN 108897191 A CN108897191 A CN 108897191A
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- 239000004744 fabric Substances 0.000 title claims abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 14
- 206010020112 Hirsutism Diseases 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 4
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 5
- 241001191009 Gymnomyza Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
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- B08B1/32—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810993000.4A CN108897191B (zh) | 2018-08-29 | 2018-08-29 | 一种教育用投影布固定装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810993000.4A CN108897191B (zh) | 2018-08-29 | 2018-08-29 | 一种教育用投影布固定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108897191A true CN108897191A (zh) | 2018-11-27 |
CN108897191B CN108897191B (zh) | 2020-09-11 |
Family
ID=64359591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810993000.4A Active CN108897191B (zh) | 2018-08-29 | 2018-08-29 | 一种教育用投影布固定装置 |
Country Status (1)
Country | Link |
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CN (1) | CN108897191B (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07261271A (ja) * | 1994-03-23 | 1995-10-13 | Hitachi Maxell Ltd | シート洗浄装置 |
CN201141978Y (zh) * | 2008-01-18 | 2008-10-29 | 王旭 | 可自动除尘的金属投影屏幕 |
US20090195759A1 (en) * | 2008-02-01 | 2009-08-06 | Van Avery James C | Portable laser projector and enclosure |
CN106940512A (zh) * | 2017-05-04 | 2017-07-11 | 杜美玲 | 一种自除尘式教学用投影幕布 |
CN207020453U (zh) * | 2017-07-05 | 2018-02-16 | 长春天骄翔宇科技有限公司 | 一种方便除尘的投影仪用投影幕布 |
CN107918242A (zh) * | 2017-11-17 | 2018-04-17 | 常州信息职业技术学院 | 一种多媒体教学用具有除尘效果的投影屏幕 |
CN207599290U (zh) * | 2017-12-08 | 2018-07-10 | 谢蕾 | 一种多媒体教学投影支架快速调节装置 |
-
2018
- 2018-08-29 CN CN201810993000.4A patent/CN108897191B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07261271A (ja) * | 1994-03-23 | 1995-10-13 | Hitachi Maxell Ltd | シート洗浄装置 |
CN201141978Y (zh) * | 2008-01-18 | 2008-10-29 | 王旭 | 可自动除尘的金属投影屏幕 |
US20090195759A1 (en) * | 2008-02-01 | 2009-08-06 | Van Avery James C | Portable laser projector and enclosure |
CN106940512A (zh) * | 2017-05-04 | 2017-07-11 | 杜美玲 | 一种自除尘式教学用投影幕布 |
CN207020453U (zh) * | 2017-07-05 | 2018-02-16 | 长春天骄翔宇科技有限公司 | 一种方便除尘的投影仪用投影幕布 |
CN107918242A (zh) * | 2017-11-17 | 2018-04-17 | 常州信息职业技术学院 | 一种多媒体教学用具有除尘效果的投影屏幕 |
CN207599290U (zh) * | 2017-12-08 | 2018-07-10 | 谢蕾 | 一种多媒体教学投影支架快速调节装置 |
Also Published As
Publication number | Publication date |
---|---|
CN108897191B (zh) | 2020-09-11 |
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Legal Events
Date | Code | Title | Description |
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PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20200819 Address after: Two road 343200 Ji'an city planning of Jiangxi province Anfu county industrial park Applicant after: Anfu county Xin Jieke Technology Co.,Ltd. Address before: 528000 No. 2, No. three, No. 26, No. 26, Ji Hua five road, Chancheng District, Foshan, Guangdong. Applicant before: GUANGDONG HAIXIANG EDUCATION TECHNOLOGY Co.,Ltd. |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A projection cloth fixing device for Education Effective date of registration: 20220630 Granted publication date: 20200911 Pledgee: Anfu sub branch of Jiujiang Bank Co.,Ltd. Pledgor: Anfu county Xin Jieke Technology Co.,Ltd. Registration number: Y2022980009663 |