CN207074339U - A kind of computer teaching projection screen - Google Patents
A kind of computer teaching projection screen Download PDFInfo
- Publication number
- CN207074339U CN207074339U CN201720473828.8U CN201720473828U CN207074339U CN 207074339 U CN207074339 U CN 207074339U CN 201720473828 U CN201720473828 U CN 201720473828U CN 207074339 U CN207074339 U CN 207074339U
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- CN
- China
- Prior art keywords
- projection screen
- case
- welded
- motor
- computer 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.)
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Abstract
The utility model discloses a kind of computer teaching projection screen,Including case,The upper end of the case is welded with T-shaped fixed mount,The T-shaped fixed mount is fixed by particle size screw with metope,The inside of the case is fixed with motor,The side of the motor is welded with rotating shaft,The other end of the rotating shaft is socketed in bearing holder (housing, cover),Steel ball is installed at the center of the bearing holder (housing, cover),The steel ball is provided with eight altogether,And eight steel balls are rounded is evenly distributed in inside circular hole retainer,The appearance wall of the rotating shaft is installed with wind-up roll,The both ends of the wind-up roll are welded with winding and keep disk,This computer teaching projection screen,The counter weight strip set in equipment can carry out sizeable plug together with mouth groove,When the equipment is not used,Effective dust reduction capability can be carried out,And it is additionally provided with winding in device interior and keeps disk,In projection screen carries out lifting behavior,It can effectively prevent screen from occurring rolling so as to influence the situation of screen flatness.
Description
Technical field
The technical field of teaching projection screen equipment is the utility model is related to, specially a kind of computer teaching projection screen
Curtain.
Background technology
With the continuous development of society, scientific and technical continuous renewal, requirement of the people to social public institution is increasingly
Height, school are the important components of social public institution, are the cradle for cultivating the social talent, its ranks of teachers and teaching facilities
Paid close attention to by parent and students, with the development of the society, teaching equipment updates, electronic equipment is daily teaching activity
The condition provided convenience, is favored by school.
The important electronic equipment that projection screen is given lectures as classroom, its feature is most important, current market sales of
Projection screen species is complete, not of uniform size, but some producers sale projection screen during use there is some not
Foot part, projection screen manufacture material is poor, and the writing pattern when extraneous light is brighter on projection screen does not see Chu, and in length
Equipment can be caused to damage because dust is excessive during the use of time, it is impossible to provide reliable teaching bar for education activities
Part.
Utility model content
The purpose of this utility model is to provide a kind of computer teaching projection screen, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical scheme：A kind of computer teaching projection screen, bag
Case is included, the upper end of the case is welded with T-shaped fixed mount, and the T-shaped fixed mount is fixed by particle size screw with metope,
The inside of the case is fixed with motor, and the side of the motor is welded with rotating shaft, and the other end of the rotating shaft is socketed in bearing
In set, steel ball is installed, the steel ball is provided with eight altogether, and eight steel balls are rounded uniform at the center of the bearing holder (housing, cover)
It is distributed in inside circular hole retainer, the appearance wall of the rotating shaft is installed with wind-up roll, and the both ends of the wind-up roll are welded with
Winding keeps disk, and the appearance wall of wind-up roll is wrapped with projection screen, and the appearance wall of the projection screen is provided with diffusing reflection layer, described
The side of diffusing reflection layer is coated with PVC top layers, and the side on the PVC top layers is provided with glass fibers layer, and the side of the glass fibers layer is consolidated
Surely there are PVC bottoms, the bottom of the projection screen is installed with rod, and the rod is welded on inside counter weight strip, the receipts
The diameter of volume holding disk is wider than the diameter of wind-up roll four centimetres, and the lower end of the case is provided with a mouthful groove.
Preferably, the side of the case is threadedly coupled by thin footpath screw with L-type fixed mount, and the L-type is fixed
Frame is fixed by particle size screw with metope.
Preferably, the T-shaped shape of the counter weight strip, and the width of counter weight strip upper end is equal with the width of mouth groove.
Preferably, the motor is fixedly connected by motor rack and case, and motor is carried out electrically with external power source
Connection.
Preferably, the thickness of the projection screen is 0.32 millimeter.
Compared with prior art, the beneficial effects of the utility model are：This computer teaching projection screen, in equipment
The counter weight strip of setting can with mouth groove carry out it is sizeable plug together, be not used the equipment when, effective dust reduction capability can be carried out,
And be additionally provided with winding in device interior and keep disk, in projection screen carries out lifting behavior, effectively it can prevent screen from occurring
Roll so as to influence the situation of screen flatness, while the screen uses soft PVC material, colour reproduction is good, the angle of visual field
Greatly, light is soft, does not hinder eye, and service life is grown, and is adapted to education activities.
Brief description of the drawings
Fig. 1 is the utility model overall structure front view；
Fig. 2 is the utility model overall structure side view；
Fig. 3 is the structural front view of the utility model bearing holder (housing, cover)；
Fig. 4 is the internal structure schematic diagram of the utility model projection screen.
In figure：1- particle size screws；2-T type fixed mounts；3- cases；4- bearing holder (housing, cover)s；5- windings keep disk；6- mouth grooves；7- is thrown
Shadow screen；8- wind-up rolls；9- rotating shafts；10- motors；11- motor racks；12- counter weight strips；13-L type fixed mounts；14- thin footpath screws；
15- rods；16- steel balls；17- circular hole retainers；18-PVC bottoms；19- glass fibers layers；20-PVC top layers；21- diffusing reflection layers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-4 are referred to, the utility model provides a kind of technical scheme：A kind of computer teaching projection screen, including
Case 3, the upper end of the case 3 are welded with T-shaped fixed mount 2, and the T-shaped fixed mount 2 is consolidated by particle size screw 1 and metope
Fixed, the inside of the case 3 is fixed with motor 10, and the side of the motor 10 is welded with rotating shaft 9, the other end of the rotating shaft 9
It is socketed in bearing holder (housing, cover) 4, steel ball 16 is installed at the center of the bearing holder (housing, cover) 4, the steel ball 16 is provided with eight, and eight altogether
Steel ball 16 is rounded to be evenly distributed in inside circular hole retainer 17, and the appearance wall of the rotating shaft 9 is installed with wind-up roll 8,
The both ends of the wind-up roll 8 are welded with winding and keep disk 5, and the appearance wall of wind-up roll 8 is wrapped with projection screen 7, the projection screen
The appearance wall of curtain 7 is provided with diffusing reflection layer 21, and the side of the diffusing reflection layer 21 is coated with PVC top layers 20, and the one of the PVC top layers 20
Side is provided with glass fibers layer 19, and the side of the glass fibers layer 19 is fixed with PVC bottoms 18, and the bottom of the projection screen 7 is fixed
Rod 15 is installed, the rod 15 is welded on inside counter weight strip 12, and the winding keeps the diameter of disk 5 more straight than wind-up roll 8
Footpath is wide four centimetres, and the lower end of the case 3 is provided with mouthful groove 6.
The side of case 3 is threadedly coupled by thin footpath screw 14 with L-type fixed mount 13, and the L-type fixed mount 13 is logical
Particle size screw 1 is crossed to be fixed with metope, can be tight by equipment by the dual fixation of L-type fixed mount 13 and T-shaped fixed mount 2
Tight is fixed on metope, will not loosen, and ensure that stability when equipment uses, the 12 T-shaped shape of counter weight strip, and
The width of the upper end of counter weight strip 12 is equal with the width of mouth groove 6, and both can be plugged together, so as to carry out effective dust reduction capability,
The motor 10 is fixedly connected by motor rack 11 and case 3, and motor 10 is electrically connected with external power source, described
The thickness of projection screen 7 is 0.32 millimeter.
Operation principle：In use, L-type fixed mount 13 is fixed on to the side of case 3 first with thin footpath screw 14, then profit
Case 3 is fixed on suitable metope by L-type fixed mount 13 and T-shaped fixed mount 2 with particle size screw 1, then by motor 10 with
External power source is electrically connected with, and rotating shaft 9 starts to rotate, and projection screen 7 moves downward under the Action of Gravity Field of counter weight strip 12, is thrown
After the 7 smooth expansion of shadow screen, under the irradiation of projecting apparatus, pass through the reflection of 21 pairs of light of diffusing reflection layer on surface so that in classroom
Student can clearly see word and picture on projection screen 7 clearly, then after education activities terminate, process of the curtain in rising
In, upper end and the mouth groove 6 of counter weight strip 12 plug together, and avoid dust and equipment is caused to damage.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of computer teaching projection screen, including case（3）, it is characterised in that：The case（3）Upper end be welded with
T-shaped fixed mount（2）, the T-shaped fixed mount（2）Pass through particle size screw（1）It is fixed with metope, the case（3）Inside
It is fixed with motor（10）, the motor（10）Side be welded with rotating shaft（9）, the rotating shaft（9）The other end be socketed in bearing
Set（4）It is interior, the bearing holder (housing, cover)（4）Center at steel ball is installed（16）, the steel ball（16）Eight, and eight steel are provided with altogether
Pearl（16）It is rounded to be evenly distributed in circular hole retainer（17）Inside, the rotating shaft（9）Appearance wall be installed with winding
Roller（8）, the wind-up roll（8）Both ends be welded with winding keep disk（5）, and wind-up roll（8）Appearance wall be wrapped with projection screen
（7）, the projection screen（7）Appearance wall be provided with diffusing reflection layer（21）, the diffusing reflection layer（21）Side be coated with PVC top layers
（20）, the PVC top layers（20）Side be provided with glass fibers layer（19）, the glass fibers layer（19）Side be fixed with PVC bottoms
Layer（18）, the projection screen（7）Bottom be installed with rod（15）, the rod（15）It is welded on counter weight strip（12）It is interior
Portion, the winding keep disk（5）Diameter compare wind-up roll（8）Diameter it is wide four centimetres, the case（3）Lower end be provided with a mouthful groove
（6）.
A kind of 2. computer teaching projection screen according to claim 1, it is characterised in that：The case（3）One
Side passes through thin footpath screw（14）With L-type fixed mount（13）It is threadedly coupled, the L-type fixed mount（13）Pass through particle size screw
（1）It is fixed with metope.
A kind of 3. computer teaching projection screen according to claim 1, it is characterised in that：The counter weight strip（12）It is in
T-shaped shape, and counter weight strip（12）The width of upper end and mouth groove（6）Width it is equal.
A kind of 4. computer teaching projection screen according to claim 1, it is characterised in that：The motor（10）Pass through
Motor rack（11）With case（3）It is fixedly connected, and motor（10）It is electrically connected with external power source.
A kind of 5. computer teaching projection screen according to claim 1, it is characterised in that：The projection screen（7）
Thickness be 0.32 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473828.8U CN207074339U (en) | 2017-05-02 | 2017-05-02 | A kind of computer teaching projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473828.8U CN207074339U (en) | 2017-05-02 | 2017-05-02 | A kind of computer teaching projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207074339U true CN207074339U (en) | 2018-03-06 |
Family
ID=61512660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720473828.8U Expired - Fee Related CN207074339U (en) | 2017-05-02 | 2017-05-02 | A kind of computer teaching projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207074339U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428374A (en) * | 2018-06-19 | 2018-08-21 | 华北理工大学 | A kind of intelligent tutoring apparatus for demonstrating |
| CN108735013A (en) * | 2018-05-28 | 2018-11-02 | 商洛学院 | A kind of teaching equipment for English teaching |
| CN108877321A (en) * | 2018-08-07 | 2018-11-23 | 浙江建设职业技术学院 | A kind of large-size screen monitors laser projection device and its manufacturing method for Intelligent platform |
| CN112433439A (en) * | 2020-12-02 | 2021-03-02 | 深圳铭薪房车科技有限公司 | Multifunctional wall TV and application system thereof |
-
2017
- 2017-05-02 CN CN201720473828.8U patent/CN207074339U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735013A (en) * | 2018-05-28 | 2018-11-02 | 商洛学院 | A kind of teaching equipment for English teaching |
| CN108428374A (en) * | 2018-06-19 | 2018-08-21 | 华北理工大学 | A kind of intelligent tutoring apparatus for demonstrating |
| CN108877321A (en) * | 2018-08-07 | 2018-11-23 | 浙江建设职业技术学院 | A kind of large-size screen monitors laser projection device and its manufacturing method for Intelligent platform |
| CN108877321B (en) * | 2018-08-07 | 2021-12-03 | 浙江建设职业技术学院 | Large-screen laser projection device for intelligent platform and manufacturing method thereof |
| CN112433439A (en) * | 2020-12-02 | 2021-03-02 | 深圳铭薪房车科技有限公司 | Multifunctional wall TV and application system thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180306 Termination date: 20190502 |