CN208298403U - A kind of projection screen structure imparted knowledge to students with full of beard political affairs - Google Patents
A kind of projection screen structure imparted knowledge to students with full of beard political affairs Download PDFInfo
- Publication number
- CN208298403U CN208298403U CN201721628628.1U CN201721628628U CN208298403U CN 208298403 U CN208298403 U CN 208298403U CN 201721628628 U CN201721628628 U CN 201721628628U CN 208298403 U CN208298403 U CN 208298403U
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- CN
- China
- Prior art keywords
- curtain
- sleeve
- projection screen
- students
- political affairs
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- 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.)
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- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model discloses a kind of projection screen structures imparted knowledge to students with full of beard political affairs for thinking political affairs instructional technology field, including two pack supports, curtain sleeve is provided at the top of the bracket, roller is provided in the curtain sleeve, the two sides of the roller are connected with shaft, fixing sleeve is connected to reset spring in the shaft, the other end of the reset spring is fixed on curtain sleeve, curtain is wrapped on the roller, the bottom of the curtain is provided with fixed clamping bar, the bottom center of the curtain sleeve is connected with cleaning agency, the side of the bracket is provided with vacuum cleaner, the utility model is convenient for being adjusted by height of the adjustable plate to curtain, curtain is shrinkable when not used, when shrinking, by vacuum cleaner and cleaning agency timely cleaning dust absorption can be carried out to the surface of curtain, time long accumulation dust is avoided to influence drop shadow effect.
Description
Technical field
The utility model relates to think political affairs instructional technology field, specially a kind of projection screen structure imparted knowledge to students with full of beard political affairs.
Background technique
In thinking political affairs teaching, majority thinks political affairs teacher and has used multimedia teaching, and multimedia teaching is the root in teaching process
The characteristics of according to instructional objective and teaching object, reasonably selects and uses Modern Teaching Medium, and teach with tradition by Instructional Design
Section combination is learned to do, the common overall process for participating in teaching, with media information function in student, formation was reasonably imparted knowledge to students
Journey structure, the teaching efficiency for being optimal.
In multimedia teaching, projection screen using lifting by the way of, generally will be installed in the top of blackboard, and put down and
When packing up projection screen, need to by lower switch, when especially packing up projection screen, after needing someone that projection screen is waited to keep well, then
It is secondary to press lower switch, motor is disconnected, shaft just stops working, and projection screen just packs up end, as nobody presses lower switch, projection screen
Cloth is easily destroyed because packing up for a long time；In the case where encountering power-off suddenly in teaching process, projection screen be cannot achieve
Automatic retracted, occur occupy blackboard the phenomenon that, curtain when in use between long surface can accumulate dust, be not easily cleaned, influence to watch
Effect, the height of curtain are not easy to adjust.
Based on this, the utility model devises a kind of projection screen structure imparted knowledge to students with full of beard political affairs, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of projection screen structures imparted knowledge to students with full of beard political affairs, to solve above-mentioned background
In the case where the unexpected power-off proposed in technology, projection screen cannot achieve automatic retracted, the phenomenon that occupying blackboard, curtain occurs
Long surface can accumulate dust between when in use, be not easily cleaned, and influence viewing effect, and the height of curtain is not easy the problem of adjusting.
To achieve the above object, the utility model provides the following technical solutions: a kind of projection screen imparted knowledge to students with full of beard political affairs
Structure, including two pack supports are provided with curtain sleeve at the top of the bracket, are provided with roller in the curtain sleeve, described
The two sides of roller are connected with shaft, and fixing sleeve is connected to reset spring in the shaft, and the other end of the reset spring is fixed on
On curtain sleeve, curtain is wrapped on the roller, the bottom of the curtain is provided with fixed clamping bar, the bottom of the curtain sleeve
Cleaning agency is connected at portion center, the side of the bracket is provided with vacuum cleaner, and the vacuum cleaner is by sweep-up pipe and cleans
Mechanism connects, and is also fixedly welded with cross bar between bracket described in two groups, the bottom end front and rear sides of the bracket are connected with
Elevating lever, the bottom of the elevating lever are movably set with adjustable plate, and the bottom of the adjustable plate is provided with pedestal.
Preferably, the inside of bracket described in two groups offers sliding slot, the equal grafting in the side of the curtain and fixed clamping bar
In sliding slot.
Preferably, the bottom of the fixed clamping bar is provided with annulus, and hook is provided on the cross bar.
Preferably, the cleaning agency includes cleaning rack, and the cleaning rack is internally provided with air hose, is inserted on the air hose
It is connected to row's suction inlet, the bottom of the cleaning rack is provided with one and clears brush, and the suction inlet is staggered with cleaning brush, institute
Sweep-up pipe is stated to connect with air hose.
Preferably, transverse splicing has screw rod in the adjustable plate, and two groups of oppositely oriented screw threads are provided on the screw rod,
Two groups of swivel nuts are bolted on the screw rod, the bottom of the elevating lever is flexibly connected with swivel nut, and one end of the screw rod is connected with
Crank.
Compared with prior art, the utility model has the beneficial effects that the utility model is convenient for through adjustable plate to curtain
Height be adjusted, curtain is shrinkable when not used, when shrinking, by vacuum cleaner and cleaning agency can surface to curtain into
The timely cleaning dust absorption of row avoids time long accumulation dust from influencing drop shadow effect.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is this practical new cleaning agency structural schematic diagram；
Fig. 3 is this practical new adjustable plate structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- bracket, 2- curtain sleeve, 3- roller, 4- shaft, 5- reset spring, 6- curtain, 7- sliding slot, 8- fixed clamping bar,
9- cross bar, 10- annulus, 11- hook, 12- vacuum cleaner, 13- sweep-up pipe, 14- elevating lever, 15- adjustable plate, 151- screw thread, 152-
Screw rod, 153- swivel nut, 16- crank, 17- pedestal, 18- cleaning agency, 181- cleaning rack, 182- air hose, 183- suction inlet, 184-
Cleaning brush.
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.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of projection screen knot imparted knowledge to students with full of beard political affairs
Structure, including two pack supports 1, the top of bracket 1 are provided with curtain sleeve 2, are provided with roller 3 in curtain sleeve 2, and the two of roller 3
Side is connected with shaft 4, and fixing sleeve is connected to reset spring 5 in shaft 4, and the other end of reset spring 5 is fixed on curtain sleeve 2,
Curtain 6 is wrapped on roller 3, the bottom of curtain 6 is provided with fixed clamping bar 8, and the bottom center of curtain sleeve 2 is connected with cleaning
Mechanism 18, the side of bracket 1 are provided with vacuum cleaner 12, and vacuum cleaner 12 is connect by sweep-up pipe 13 with cleaning agency 18, two groups of branch
Cross bar 9 is also fixedly welded between frame 1, the bottom end front and rear sides of bracket 1 are connected with elevating lever 14, the bottom of elevating lever 14
Portion is movably set with adjustable plate 15, and the bottom of adjustable plate 15 is provided with pedestal 17.
Wherein, the inside of two pack supports 1 offers sliding slot 7, and the side of curtain 6 and fixed clamping bar 8 is plugged on sliding slot 7
In, curtain 6 shakes when avoiding fixed, and the bottom of fixed clamping bar 8 is provided with annulus 10, hook 11, scavenging machine are provided on cross bar 9
Structure 18 includes cleaning rack 181, and cleaning rack 181 is internally provided with air hose 182, row's suction inlet 183 is plugged on air hose 182,
The bottom of cleaning rack 181 is provided with one and clears brush 184, and suction inlet 183 is staggered with cleaning brush 184, sweep-up pipe 13 and wind
Pipe 182 connects, and transverse splicing has screw rod 152 in adjustable plate 15, and two groups of oppositely oriented screw threads 151, spiral shell are provided on screw rod 152
Two groups of swivel nuts 153 are bolted on bar 152, the bottom of elevating lever 14 is flexibly connected with swivel nut 153, and one end of screw rod 152 is connected with
Crank 16.
One concrete application of the present embodiment are as follows: bracket 1 is carried out by rotation crank 16 before using projection screen structure
The adjusting of height, when rotating crank 16, two groups of oppositely oriented screw threads 151 move toward one another swivel nut 153 on screw rod 152,
Elevating lever 14 pushes bracket 1 to move up and down, and curtain 6 is pulled down, and annulus 10 is hung in hook 11, fixed clamping bar 8 and curtain
The both ends of cloth 6 are stuck in sliding slot 7, and curtain 6 shakes when avoiding fixed, when clearing up curtain 6, open vacuum cleaner 12, pine
Open annulus 10 and hook 11, roller 3 circles round under the action of the restoring force of reset spring 5,6 solderless wrapped connection of curtain on roller 3,
Cleaning brush 184 on cleaning agency 18 cleans curtain 6, and the dust for cleaning floating is drawn by suction inlet 183, inhales
Enter into vacuum cleaner 12 and is collected.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of projection screen structure imparted knowledge to students with full of beard political affairs, including two pack supports (1), it is characterised in that: the bracket (1)
Top is provided with curtain sleeve (2), is provided with roller (3) in the curtain sleeve (2), and the two sides of the roller (3) are connected with
Shaft (4), fixing sleeve is connected to reset spring (5) on the shaft (4), and the other end of the reset spring (5) is fixed on curtain
It on sleeve (2), is wrapped with curtain (6) on the roller (3), the bottom of the curtain (6) is provided with fixed clamping bar (8), described
The bottom center of curtain sleeve (2) is connected with cleaning agency (18), and the side of the bracket (1) is provided with vacuum cleaner (12),
The vacuum cleaner (12) is connect by sweep-up pipe (13) with cleaning agency (18), and bracket described in two groups is also fixedly welded between (1)
Have cross bar (9), the bottom end front and rear sides of the bracket (1) are connected with elevating lever (14), the bottom of the elevating lever (14)
Portion is movably set with adjustable plate (15), and the bottom of the adjustable plate (15) is provided with pedestal (17).
2. a kind of projection screen structure imparted knowledge to students with full of beard political affairs according to claim 1, it is characterised in that: propped up described in two groups
The inside of frame (1) offers sliding slot (7), and the side of the curtain (6) and fixed clamping bar (8) is plugged in sliding slot (7).
3. a kind of projection screen structure imparted knowledge to students with full of beard political affairs according to claim 1, it is characterised in that: the fixing clamp
The bottom of item (8) is provided with annulus (10), is provided with hook (11) on the cross bar (9).
4. a kind of projection screen structure imparted knowledge to students with full of beard political affairs according to claim 1, it is characterised in that: the scavenging machine
Structure (18) includes cleaning rack (181), and the cleaning rack (181) is internally provided with air hose (182), is inserted on the air hose (182)
It is connected to row's suction inlet (183), the bottom of the cleaning rack (181) is provided with one and clears brush (184), the suction inlet
(183) it is staggered with cleaning brush (184), the sweep-up pipe (13) connect with air hose (182).
5. a kind of projection screen structure imparted knowledge to students with full of beard political affairs according to claim 1, it is characterised in that: the adjustable plate
(15) there is screw rod (152) transverse splicing in, two groups of oppositely oriented screw threads (151), the spiral shell are provided on the screw rod (152)
Two groups of swivel nuts (153) are bolted on bar (152), the bottom of the elevating lever (14) is flexibly connected with swivel nut (153), the screw rod
(152) one end is connected with crank (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721628628.1U CN208298403U (en) | 2017-11-29 | 2017-11-29 | A kind of projection screen structure imparted knowledge to students with full of beard political affairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721628628.1U CN208298403U (en) | 2017-11-29 | 2017-11-29 | A kind of projection screen structure imparted knowledge to students with full of beard political affairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298403U true CN208298403U (en) | 2018-12-28 |
Family
ID=64696233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721628628.1U Expired - Fee Related CN208298403U (en) | 2017-11-29 | 2017-11-29 | A kind of projection screen structure imparted knowledge to students with full of beard political affairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703274A (en) * | 2021-08-24 | 2021-11-26 | 九江恒盛科技发展有限责任公司 | Presentation device for scientific and technological information consultation service |
| CN114859645A (en) * | 2022-05-13 | 2022-08-05 | 南京林业大学 | Multimedia projection curtain with cleaning function |
-
2017
- 2017-11-29 CN CN201721628628.1U patent/CN208298403U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703274A (en) * | 2021-08-24 | 2021-11-26 | 九江恒盛科技发展有限责任公司 | Presentation device for scientific and technological information consultation service |
| CN114859645A (en) * | 2022-05-13 | 2022-08-05 | 南京林业大学 | Multimedia projection curtain with cleaning function |
| CN114859645B (en) * | 2022-05-13 | 2023-08-11 | 南京林业大学 | Multimedia projection curtain with cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 Termination date: 20191129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |