CN205539901U - Can keep smooth for teaching projection curtain of cloth cover - Google Patents
Can keep smooth for teaching projection curtain of cloth cover Download PDFInfo
- Publication number
- CN205539901U CN205539901U CN201620348795.XU CN201620348795U CN205539901U CN 205539901 U CN205539901 U CN 205539901U CN 201620348795 U CN201620348795 U CN 201620348795U CN 205539901 U CN205539901 U CN 205539901U
- Authority
- CN
- China
- Prior art keywords
- fixed
- driving motor
- curtain body
- cloth cover
- teaching
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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.)
- Expired - Fee Related
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- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model discloses a can keep smooth for teaching projection curtain of cloth cover, including receiving the cloth box, receive all fixed bearings that is equipped with of cloth box both ends, the inside rotation of bearing is connected with the pivot, the top fixed connection of pivot and curtain body, receive cloth box both ends all with electric putter on positive fixed connection, the electric putter top is fixed radio signal recepition ware and the controller of being equipped with respectively, curtain body both ends are the fixed iron powder strip that is equipped with all, curtain body bottom and transmission shaft fixed connection, the transmission shaft both ends are the fixed driving motor that is equipped with all, driving motor fixed surface is equipped with the wearing layer. The utility model relates to a rationally, through a series of structures, can guarantee the teaching with the projection curtain when opening, can not be because of the air that flows but the fold of " wave " shape appears in projection curtain surface, the improvement student watches the impression to improve the quality of teaching.
Description
Technical field
This utility model belongs to teaching aid technical field, is specifically related to one and cloth cover can be kept to put down
Whole teaching projection screen.
Background technology
Projection screen is used in film, and office, home theater, in convention occasion.With
Show the instrument of image, video file, in school instruction works, the application of projection screen
More and more extensive, at projection screen during using, it is ensured that curtain and horizontal plane,
But in classroom, because will be in view of situation about ventilating, it is very big that the window in classroom can do,
And in the case of keeping ventilating in classroom, often there is out-of-flatness work when in screen
" wave " situation, arise that deformation when image projects above, and before and after curtain
Injustice, is also easily caused the difference of projector distance, and finally resulting in focusing can not be accurate, impact figure
The definition of picture, affects the viewing impression of student, thus has influence on quality of instruction.
Utility model content
The purpose of this utility model is to provide a kind of teaching projection keeping cloth cover smooth
Curtain, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme: one can keep cloth
The teaching projection screen that face is smooth, including receiving cloth box, described receipts cloth box two ends are all fixed with
Bearing, described Bearing inner is rotatably connected to rotating shaft, and the top of described rotating shaft and curtain body is solid
Fixed connection, described receipts cloth box two ends are all fixing with front, electric pushrod upper end to be connected, described electronic
Push rod top is fixed with wireless signal receiver and controller, described reception of wireless signals respectively
Device is electrically connected with by wire and controller, and described curtain body two ends are all fixed with powdered-iron bead,
Described curtain body bottom portion and the fixing connection of power transmission shaft, described power transmission shaft two ends are all fixed with drives
Galvanic electricity machine, described driving motor is electrically connected with by wire and controller, described driving motor table
Face is fixed with wearing layer.
Preferably, described electric pushrod front is fixed with permanent magnet adsorbing layer.
Preferably, described powdered-iron bead includes the pouch that the most spaced multiple cloth sews,
And internal pouch is iron powder interstitital texture.
Preferably, described wearing layer is rustless steel permanent magnet, and surface fixed bonding has rubber to subtract
Shake noise reduction layer.
Preferably, described driving motor is two-way reducing motor.
Technique effect of the present utility model and advantage: this can keep the teaching projection that cloth cover is smooth
Curtain, can be received the signal of remote controller, then be transmitted by signal by wireless signal receiver
To controller, control to drive the rotation of motor by controller, such that it is able to drive curtain body
Motion, make curtain body open or pack up, by the powdered-iron bead at curtain body two ends, can
So that curtain body two ends are adsorbed on the permanent magnet adsorbing layer fixed on electric pushrod surface, from
And can ensure that the smooth of curtain body, prevent the interference that curtain body is caused by moving air,
Electric pushrod can extend before curtain body is opened simultaneously, in the retraction that curtain body is packed up
Short, from without taking too much space, save valuable instructional space.Therefore, this practicality
New design is reasonable, by a series of structure, it is ensured that teaching projection screen is being opened
When, the pleat of " wave " shape will not occur because of the air of flowing but projection screen surface
Wrinkle, improves the viewing impression of student, thus improves the quality of teaching.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is right view of the present utility model.
In figure: 1 wireless signal receiver, 2 receive cloth boxes, 3 rotating shafts, 4 controllers, 5 bearings,
6 electric pushrods, 7 powdered-iron beads, 8 power transmission shafts, 9 wearing layers, 10 driving motor, 11 curtains
Body.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, in this utility model embodiment
Technical scheme be clearly and completely described, it is clear that described embodiment be only this
The a part of embodiment of utility model rather than whole embodiments.Based in this utility model
Embodiment, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of this utility model protection.
This utility model provides a kind of teaching keeping cloth cover smooth as shown in Figure 1-2
With projection screen, including receiving cloth box 2, described receipts cloth box 2 two ends are all fixed with bearing 5,
Described bearing 5 inner rotation connects rotating shaft 3, described rotating shaft 3 and the top of curtain body 11
End is fixing to be connected, and described receipts cloth box 2 two ends are all fixing with front, electric pushrod 6 upper end to be connected,
Described electric pushrod 6 front is fixed with permanent magnet adsorbing layer, described electric pushrod 6 top
It is fixed with wireless signal receiver 1 and controller 4, described wireless signal receiver 1 respectively
Being electrically connected with by wire and controller 4, described curtain body 11 two ends are all fixed with ferrum
Bean noodles 7, described powdered-iron bead 7 includes the pouch that the most spaced multiple cloth sews, and
Internal pouch is iron powder interstitital texture, with power transmission shaft 8 company of fixing bottom described curtain body 11
Connecing, described power transmission shaft 8 two ends are all fixed with driving motor 10, and described driving motor 10 is
Two-way reducing motor, described driving motor 10 is electrically connected with by wire and controller 4, institute
Stating driving motor 10 surface and be fixed with wearing layer 9, described wearing layer 9 is rustless steel permanent magnetism
Body, and surface fixed bonding has rubber damping noise reduction layer.
This can keep the teaching projection screen that cloth cover is smooth, can by wireless signal receiver 1
To receive the signal of remote controller, then signal is passed to controller 4, is controlled by controller 4
System drives the rotation of motor 10, such that it is able to drive the motion of curtain body 11, makes curtain originally
Body 11 is opened or is packed up, by the powdered-iron bead at curtain body 11 two ends, and can by curtain originally
Body 11 two ends are adsorbed on the permanent magnet adsorbing layer fixed on electric pushrod 6 surface, thus can
To ensure the smooth of curtain body 11, prevent the interference that curtain body 11 is caused by moving air,
Electric pushrod 6 can extend before curtain body 11 is opened simultaneously, receives at curtain body 11
Rise and shorten afterwards, from without taking too much space, save valuable instructional space.Therefore,
This utility model is reasonable in design, by a series of structure, it is ensured that teaching projection screen
Opening when, will not because of flowing air but projection screen surface occur " wave "
The fold of shape, improves the viewing impression of student, thus improves the quality of teaching.
It is last it is noted that the foregoing is only preferred embodiment of the present utility model,
It is not limited to this utility model, although this utility model being carried out with reference to previous embodiment
Detailed description, for a person skilled in the art, it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent replaces
Change, all within spirit of the present utility model and principle, any amendment of being made, equivalent,
Improve, within should be included in protection domain of the present utility model.
Claims (5)
1. can keep the teaching projection screen that cloth cover is smooth, including receiving cloth box (2), its feature exists
In: described receipts cloth box (2) two ends are all fixed with bearing (5), and described bearing (5) inner rotation is even
Being connected to rotating shaft (3), the top of described rotating shaft (3) and curtain body (11) is fixing to be connected, described receipts cloth
Box (2) two ends are all fixing with electric pushrod (6) front, upper end to be connected, described electric pushrod (6) top
It is fixed with wireless signal receiver (1) and controller (4), described wireless signal receiver (1) respectively
Being electrically connected with by wire and controller (4), described curtain body (11) two ends are all fixed with iron powder
Bar (7), described curtain body (11) bottom and the fixing connection of power transmission shaft (8), described power transmission shaft (8)
Two ends are all fixed with driving motor (10), and described driving motor (10) passes through wire and controller (4)
Being electrically connected with, described driving motor (10) surface is fixed with wearing layer (9).
A kind of teaching projection screen keeping cloth cover smooth the most according to claim 1, it is special
Levy and be: described electric pushrod (6) front is fixed with permanent magnet adsorbing layer.
A kind of teaching projection screen keeping cloth cover smooth the most according to claim 1, it is special
Levy and be: described powdered-iron bead (7) includes the pouch that the most spaced multiple cloth sews, and pouch
Inside is iron powder interstitital texture.
A kind of teaching projection screen keeping cloth cover smooth the most according to claim 1, it is special
Levy and be: described wearing layer (9) is rustless steel permanent magnet, and surface fixed bonding has rubber damping noise reduction
Layer.
A kind of teaching projection screen keeping cloth cover smooth the most according to claim 1, it is special
Levy and be: described driving motor (10) is two-way reducing motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348795.XU CN205539901U (en) | 2016-04-25 | 2016-04-25 | Can keep smooth for teaching projection curtain of cloth cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348795.XU CN205539901U (en) | 2016-04-25 | 2016-04-25 | Can keep smooth for teaching projection curtain of cloth cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539901U true CN205539901U (en) | 2016-08-31 |
Family
ID=56796433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620348795.XU Expired - Fee Related CN205539901U (en) | 2016-04-25 | 2016-04-25 | Can keep smooth for teaching projection curtain of cloth cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108230763A (en) * | 2017-12-29 | 2018-06-29 | 南京惊兰谷根自动化科技有限公司 | A kind of multimedia teaching facility |
| CN108665745A (en) * | 2018-07-16 | 2018-10-16 | 朱晓丹 | A kind of multimedia teaching apparatus that Accounting Course uses |
-
2016
- 2016-04-25 CN CN201620348795.XU patent/CN205539901U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108230763A (en) * | 2017-12-29 | 2018-06-29 | 南京惊兰谷根自动化科技有限公司 | A kind of multimedia teaching facility |
| CN108665745A (en) * | 2018-07-16 | 2018-10-16 | 朱晓丹 | A kind of multimedia teaching apparatus that Accounting Course uses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |