CN207676113U - Portable teaching projection screen - Google Patents
Portable teaching projection screen Download PDFInfo
- Publication number
- CN207676113U CN207676113U CN201721770878.9U CN201721770878U CN207676113U CN 207676113 U CN207676113 U CN 207676113U CN 201721770878 U CN201721770878 U CN 201721770878U CN 207676113 U CN207676113 U CN 207676113U
- Authority
- CN
- China
- Prior art keywords
- telescopic rod
- projection screen
- curtain
- ontology
- portable teaching
- 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.)
- Expired - Fee Related
Links
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model discloses a kind of Portable teaching projection screens, it is related to teaching equipment field, two installation baggings can be sleeved on telescopic rod by the Portable teaching projection screen when in use, then telescopic rod is elongated again, hanging ring is hung on the nail of wall, then two casings are sleeved on telescopic rod both ends, are inserted into respectively in two fringing rings of curtain body bottom portion with the plug of the end of two elastic stays, to tightly taut opening cloth ontology.Just available projector projects on curtain ontology, and since the elasticity tension of elastic stay acts on, make curtain ontology be not susceptible to shake, will not fluctuate with the wind, shock resistance is strong, and stability is good, and display effect is good.
Description
Technical field
The utility model is related to teaching equipment fields, and in particular to a kind of Portable teaching projection screen.
Background technology
With popularizing for multimedia teaching, computer and projecting apparatus are increasingly used in teaching, and teacher passes through meter
Word, picture, video in calculation machine propagate information, improve teaching efficiency.And some teachers often oneself carry notebook electricity
Brain and portable projector, to be imparted knowledge to students using multimedia tool in the poor classroom of condition.And existing projecting apparatus
The most design comparison tradition of curtain, volume is larger, it is difficult to carry.And some portable projector curtain shock resistances
It is very poor, cause it that can shake when in use, people is allowed to be difficult to see clearly the content on projection screen.
Utility model content
The utility model can be not only torn open freely mainly solving the technical problems that provide a kind of Portable teaching projection screen
Dress, easy to carry, simple to operate, and shock resistance is strong, stability is good, and when use will not shake with the wind, display effect
Fruit is good.
To achieve the above object, the utility model provides technical solution below：
The Portable teaching projection screen includes a telescopic rod, and the hanging ring of annular, telescopic rod are equipped at telescopic rod center
Bottom is equipped with the curtain ontology of rectangular patch, and curtain bodies top is equipped with the identical cylindrical shape of two sizes and installs bagging, two installations
Bagging is sleeved on telescopic rod, and curtain body bottom portion two corners are inlaid with the fringing ring of circular ring shape, and the both ends of telescopic rod are cased with
The casing of tubular, two casing sides are respectively connected with the elastic stay of thin rod shape, and the length of elastic stay is than curtain ontology and peace
Long 3 ㎝ of the sum of width of encapsulation bag or so, the end of two elastic stays is equipped with the plug of semi-circular shape, and two plugs are inserted into respectively
In two fringing rings.
As advanced optimizing for the technical program, the telescopic rod and hanging ring are manufactured from aluminum alloy, and telescopic rod and are hung
Ring is by being welded to connect.
As advanced optimizing for the technical program, the curtain ontology and installation bagging are manufactured by canvas, curtain sheet
Body and installation bagging are sutured by cotton thread and are connected.
As advanced optimizing for the technical program, the elastic stay, casing, plug are made of stainless steel, elastic force
The casing and plug at strut and its both ends are by being welded to connect.
It is using the advantageous effect of above technical scheme：The Portable teaching projection screen can install bagging by two when in use
It is sleeved on telescopic rod, then elongates telescopic rod again, hanging ring is hung on the nail of wall, two casings are then sleeved on telescopic rod two
End, is inserted into the plug of the end of two elastic stays in two fringing rings of curtain body bottom portion respectively, to tightly taut opening cloth
Ontology.Just available projector projects on curtain ontology, and since the elasticity tension of elastic stay acts on, so that curtain ontology is not easy
It shakes, will not fluctuate with the wind, shock resistance is strong, and stability is good, and display effect is good.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model Portable teaching projection screen；
Fig. 2 is the structural schematic diagram of elastic stay shown in Fig. 1.
Wherein, 1-curtain ontology, 2-telescopic rods, 3-elastic stays, 4-plugs, 5-hanging rings, 6-installation baggings,
7-casings, 8-fringing rings.
Specific implementation mode
The preferred embodiment of the Portable teaching projection screen is described in detail below in conjunction with the accompanying drawings.
Fig. 1 and Fig. 2 shows the specific implementation mode of the utility model Portable teaching projection screen：
As shown in Figure 1, the Portable teaching projection screen includes a telescopic rod 2, annular is installed at 2 center of telescopic rod
Hanging ring 5,2 bottom of telescopic rod are equipped with the curtain ontology 1 of rectangular patch, and 1 top of curtain ontology is equipped with the identical cylindrical shape of two sizes
Bagging 6 is installed, two installation baggings 6 are sleeved on telescopic rod 2, and 1 bottom two corners of curtain ontology are inlaid with the fringing ring of circular ring shape
8, the both ends of telescopic rod 2 are cased with the casing 7 of tubular, as shown in Fig. 2, two casings, 7 side is respectively connected with the elastic force of thin rod shape
The length of strut 3, elastic stay 3 ensures two elastic stays than long 3 ㎝ of the sum of the width of curtain ontology 1 and installation bagging 6 or so
3 can prop up curtain ontology 1 is tight.The end of two elastic stays 3 is equipped with the plug 4 of semi-circular shape, and two plugs 4 are inserted respectively
Enter in two fringing rings 8.
Telescopic rod 2 and hanging ring 5 are manufactured from aluminum alloy, sturdy and durable, and corrosion resistance and good, and telescopic rod 2 is therefrom
The heart is flexible toward both ends, and telescopic rod 2 and hanging ring 5 are by being welded to connect.Curtain ontology 1 and installation bagging 6 are manufactured by canvas, in a down-to-earth manner
Durable, display effect is good, and can freely be folded after the dismounting of curtain ontology 1, and curtain ontology 1 and installation bagging 6 pass through cotton thread
Suture connection.Elastic stay 3, casing 7, plug 4 are made of stainless steel, sturdy and durable, and corrosion resistance and good, elastic stay
3 with the casing 7 and plug 4 at its both ends by being welded to connect.
The Portable teaching projection screen when in use can by two installation sets 6 bags be sleeved on telescopic rod 2, then elongate again flexible
Bar 2 hangs over hanging ring 5 on the nail of wall, and two casings 7 are then sleeved on 2 both ends of telescopic rod, with the end of two elastic stays 3
Plug 4 be inserted into two fringing rings 8 of 1 bottom of curtain ontology respectively, to tightly taut opening cloth ontology 1.Just available projector
It is projected on curtain ontology 1, and since the elasticity tension of elastic stay 3 acts on, make curtain ontology 1 be not susceptible to shake, also not
It can fluctuate with the wind, shock resistance is strong, and stability is good, and display effect is good.
The above are merely preferred embodiments of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the present invention, various modifications and improvements can be made, these belong to this
The protection domain of utility model.
Claims (4)
1. a kind of Portable teaching projection screen, it is characterised in that：The Portable teaching projection screen includes a telescopic rod（2）,
Telescopic rod（2）The hanging ring of annular is installed at center（5）, telescopic rod（2）Bottom is equipped with the curtain ontology of rectangular patch（1）, curtain
Cloth ontology（1）Top is equipped with the identical cylindrical shape of two sizes and installs bagging（6）, two installation baggings（6）It is sleeved on telescopic rod（2）
On, curtain ontology（1）Bottom two corners are inlaid with the fringing ring of circular ring shape（8）, telescopic rod（2）Both ends be cased with tubular
Casing（7）, two casings（7）Side is respectively connected with the elastic stay of thin rod shape（3）, elastic stay（3）Length than curtain ontology
（1）With installation bagging（6）Long 3 ㎝ of the sum of width or so, two elastic stays（3）End be equipped with the plug of semi-circular shape
（4）, two plugs（4）It is inserted into two fringing rings respectively（8）It is interior.
2. Portable teaching projection screen according to claim 1, it is characterised in that：The telescopic rod（2）And hanging ring（5）
It is manufactured from aluminum alloy, telescopic rod（2）And hanging ring（5）By being welded to connect.
3. Portable teaching projection screen according to claim 1, it is characterised in that：The curtain ontology（1）And installation set
Bag（6）It is manufactured by canvas, curtain ontology（1）With installation bagging（6）It is sutured and is connected by cotton thread.
4. Portable teaching projection screen according to claim 1, it is characterised in that：The elastic stay（3）, casing（7）、
Plug（4）It is made of stainless steel, elastic stay（3）With the casing at its both ends（7）And plug（4）By being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770878.9U CN207676113U (en) | 2017-12-18 | 2017-12-18 | Portable teaching projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770878.9U CN207676113U (en) | 2017-12-18 | 2017-12-18 | Portable teaching projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676113U true CN207676113U (en) | 2018-07-31 |
Family
ID=62967751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721770878.9U Expired - Fee Related CN207676113U (en) | 2017-12-18 | 2017-12-18 | Portable teaching projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676113U (en) |
-
2017
- 2017-12-18 CN CN201721770878.9U patent/CN207676113U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207676113U (en) | Portable teaching projection screen | |
| CN206249610U (en) | A kind of Portable multimedia education device | |
| CN207302416U (en) | A kind of English teaching is with writing from memory plate | |
| CN206134188U (en) | Portable easy -to -draw is precious | |
| CN207473290U (en) | Pedagogy is given lessons with Multifunctional projection screen | |
| CN203165280U (en) | Picture frame for history learning | |
| CN204965838U (en) | Classroom presentation device of economy teaching | |
| CN206726552U (en) | A kind of multi-functional Chinese literature study Graphic Panel | |
| CN205149327U (en) | Portable blackboard | |
| CN208988137U (en) | Primary Chinese teaching apparatus | |
| CN206259073U (en) | A kind of portable ideological and political education control exhibiting device | |
| CN206379006U (en) | Think political affairs teaching demonstration device | |
| CN206348949U (en) | A kind of multimedia teaching suspension arrangement | |
| CN209746801U (en) | History teaching aid suitable for teaching according to time sequence table | |
| CN205410417U (en) | Board is used in teaching | |
| CN207337694U (en) | A kind of open air Multimedia Mobile teaching projection equipment | |
| CN206516098U (en) | A kind of Teaching of Computer Graphics device | |
| CN203788339U (en) | University classroom cellphone management device supported by folding frame | |
| CN103825989A (en) | Folding-leg-supported mobile phone rest station for college classroom | |
| CN203455973U (en) | Foldable teaching auxiliary device for solid geometry | |
| CN207380940U (en) | A kind of portable mathematical teaching apparatus | |
| CN219046203U (en) | Suspension device | |
| CN206525697U (en) | Portable English teaching-aid box | |
| CN206353393U (en) | Portable box-type English-teaching aid | |
| CN206462608U (en) | A kind of student, which uses, hangs book band |
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: 20180731 Termination date: 20181218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |