CN208240220U - A kind of computer teaching projection screen wrap-up - Google Patents
A kind of computer teaching projection screen wrap-up Download PDFInfo
- Publication number
- CN208240220U CN208240220U CN201820385574.9U CN201820385574U CN208240220U CN 208240220 U CN208240220 U CN 208240220U CN 201820385574 U CN201820385574 U CN 201820385574U CN 208240220 U CN208240220 U CN 208240220U
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- Prior art keywords
- framework
- curtain
- rail
- guide block
- right guide
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Abstract
The utility model relates to computer teaching field more particularly to a kind of computer teaching projection screen wrap-ups.The technical problem to be solved by the present invention is to provide a kind of more convenient quickly folding and unfolding curtains of energy, can be to the computer teaching that curtain is protected projection screen wrap-up.In order to solve the above-mentioned technical problem, the utility model provides such a computer teaching projection screen wrap-up, includes framework, motor, shaft, bearing block, roller, curtain, cross bar, left rail etc.；Framework is installed on wall, motor is equipped in the middle part of framework inner left wall, it is embedded in the middle part of inner wall on the right side of framework to be connected with bearing block, shaft, the left end of shaft and the output axis connection of motor are connected in bearing block.The utility model has reached the more convenient quickly folding and unfolding curtain of energy, can be to the effect that curtain is protected, by setting electric pushrod and travel switch, and people can pack up curtain as long as control electric pushrod elongation.
Description
Technical field
It is wound and is filled with projection screen the utility model relates to computer teaching field more particularly to a kind of computer teaching
It sets.
Background technique
Computer is commonly called as computer, is a kind of electronic computer device for supercomputing, can carry out numerical value calculating, and can
To carry out logic calculation, also has the function of store-memory.It is that can be run according to program, it is automatic, high speed processing mass data
Modernize intelligent electronic device.It is made of hardware system and software systems, the computer for being fitted without any software is referred to as naked
Machine.Supercomputer, industrial control computer, network computer, personal computer, five class of embedded computer can be divided into, compared with
Advanced computer has biocomputer, photonic computer, quantum computer etc..
Computer-assisted instruction is the various education activities carried out under area of computer aided, is discussed with conversational mode and student
The content of courses, Teaching process, the method and technology for carrying out teaching and training.It is to be imparted knowledge to students or used with computer help teacher
The wide application field that computer is imparted knowledge to students.It is both an important applied field and one of the computer in education
Kind new education skill and teaching method.CAI provides a good personalized learning environment for student.The more matchmakers of integrated application
The computer technologies such as body, hypertext, artificial intelligence and knowledge base overcome disadvantage single, unilateral in traditional teaching way.It
Use can effectively shorten learning time, improve the quality of teaching and efficiency of teaching, realize the instructional objective of optimization.Computer
Its english abbreviation of aided education is CAI.CAI is one that the multiple subjects such as computer science, pedagogy, psychology intersect to form
Comprehensive new branch of science.It had not only represented a very wide computer application field, but also was an important education skill.
Needing to transmit the content of courses during computer teaching by the way of projection, projection needs to use curtain,
Curtain needs repeatedly to roll or release in teaching process, and the presence of existing projection screen winding device cannot be more convenient fast
Prompt ground folding and unfolding curtain, the shortcomings that cannot protecting curtain.
Therefore it needs to research and develop a kind of more convenient quickly folding and unfolding curtain of energy, it can be to the computer teaching that curtain is protected
With projection screen wrap-up.
Utility model content
(1) technical problems to be solved
The utility model cannot more convenient quickly folding and unfolding curtain in order to overcome existing projection screen winding device to exist
Cloth, the shortcomings that cannot protecting curtain, it is more convenient fast that the technical problem to be solved by the present invention is to provide a kind of energy
Prompt ground folding and unfolding curtain, can be to the computer teaching that curtain is protected projection screen wrap-up.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides such a computer teaching and is wound with projection screen
Device, include framework, motor, shaft, bearing block, roller, curtain, cross bar, left rail, left guide block, right guide rail, right guide block and
Spring is equipped with framework on wall, motor is equipped in the middle part of framework inner left wall, embedded in the middle part of inner wall on the right side of framework to be connected with axis
Seat is held, shaft, the left end of shaft and the output axis connection of motor are connected in bearing block, is equipped with roller, roller position in the middle part of shaft
Inside framework, it is connected with curtain on roller, flat recess is provided in the middle part of framework lower wall, curtain passes through flat recess, a left side on the downside of framework
Portion is equipped with left rail, and slidingtype is connected with left guide block on left rail, and right part is equipped with right guide rail, slidingtype on right guide rail on the downside of framework
It is connected with right guide block, left guide block and right guide block are located in same horizontal line, and cross bar, cross bar are connected between left guide block and right guide block
It is connect with curtain, is respectively connected with spring on the downside of left guide block and right guide block, the lower spring end of the left and right sides is connected to left rail
On the downside of right guide rail.
It preferably, further include having fixed plate, electric pushrod, sliding rail, sliding block, rack gear, gear and travel switch, right guide rail is right
Upper lateral part is equipped with fixed plate, and middle side part is equipped with electric pushrod in fixed plate, and right guide rail right upper portion is equipped with sliding rail, slides on sliding rail
Formula is connected with sliding block, and rack gear is connected on the right side of sliding block, is connected on the downside of rack gear with electric pushrod top, and shaft right end is equipped with gear,
Gear is located on front side of rack gear, and wheel and rack engagement, right guide rail left upper portion is equipped with travel switch, travel switch and electric pushrod
Between have circuit connection.
It preferably, further include having 7 shape plates, strut and protective plate, right part is equipped with 7 shape plates, 7 shape plate top lefts on the upside of fixed plate
Side is equipped with strut, and the end of strut is connected to framework top right side, and strut left lower is equipped with protective plate, and protective plate is located at framework
Top.
Working principle: when people are needed using projection screen, can open motor, make motor that shaft be driven to turn clockwise
Dynamic, curtain moves gradually downward, and slide downward, spring gradually taper up therewith for left guide block and right guide block, after curtain is fully deployed,
Motor can be closed.It is thus capable of fixing curtain, prevents the external forces such as wind from swing curtain everywhere and influencing to impart knowledge to students.It is not necessarily to
When using curtain, it can be again turned on motor, make motor that shaft be driven to rotate counterclockwise, curtain gradually moves upwards, left guide block
Upward sliding, spring are gradually stretched therewith with right guide block, when curtain is fully wound into roller, can close motor.
Because further including having fixed plate, electric pushrod, sliding rail, sliding block, rack gear, gear and travel switch, on the right side of right guide rail
Top is equipped with fixed plate, and middle side part is equipped with electric pushrod in fixed plate, and right guide rail right upper portion is equipped with sliding rail, slidingtype on sliding rail
It is connected with sliding block, rack gear is connected on the right side of sliding block, is connected on the downside of rack gear with electric pushrod top, shaft right end is equipped with gear, tooth
Wheel is located on front side of rack gear, wheel and rack engagement, and right guide rail left upper portion is equipped with travel switch, travel switch and electric pushrod it
Between have circuit connection, so people to be can control electric pushrod and gradually extend after having used curtain and having shut down computer, electricity
Dynamic push rod band carry-over bar gradually moves upwards, and rack drives gear rotation, gear drives roller to rotate counterclockwise by shaft again,
Curtain is gradually involved in roller, and left guide block and right guide block upward sliding therewith connect when right guide block is moved up to travel switch
When touching, travel switch can control electric pushrod and stop elongation.It thus can be convenient and quickly pack up curtain.
Because further including having 7 shape plates, strut and protective plate, right part is equipped with 7 shape plates, 7 shape plate top left sides on the upside of fixed plate
Equipped with strut, the end of strut is connected to framework top right side, and strut left lower is equipped with protective plate, and protective plate is located in framework
Side, 7 shape plates and protective plate can block dust, and preventing dust from falling into the associated components such as rack and pinion influences the equipment effectiveness
Performance, while 7 shape plates block the components such as rack and pinion, are also possible to prevent people and accidentally touch movement middle rack and tooth
It takes turns and causes danger, the equipment operation can be made safer.
(3) beneficial effect
The utility model has reached the more convenient quickly folding and unfolding curtain of energy, can be to the effect that curtain is protected.Pass through
Electric pushrod and travel switch are set, and people can pack up curtain as long as control electric pushrod elongation, and travel switch again can be in curtain
Cloth closes electric pushrod after packing up in time, and having achieved the effect that can more convenient quickly folding and unfolding curtain.By setting 7 shape plates and
Protective plate, 7 shape plates and protective plate can block dust, and preventing dust from falling into the associated components such as rack and pinion influences the equipment
The performance of efficiency has also achieved the effect that curtain can be protected.
Detailed description of the invention
Fig. 1 is the first schematic view of the front view of the utility model.
Fig. 2 is second of schematic view of the front view of the utility model.
Fig. 3 is the third schematic view of the front view of the utility model.
The label in accompanying drawing is: 1- framework, 2- motor, 3- shaft, 4- bearing block, 5- roller, 6- flat recess, 7- curtain,
8- cross bar, 9- left rail, the left guide block of 10-, the right guide rail of 11-, the right guide block of 12-, 13- spring, 14- fixed plate, 15- electric pushrod,
16- sliding rail, 17- sliding block, 18- rack gear, 19- gear, 20- travel switch, 21-7 shape plate, 22- strut, 23- protective plate.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment 1
A kind of computer teaching projection screen wrap-up, as shown in Figure 1-3, include framework 1, motor 2, shaft 3,
Bearing block 4, roller 5, curtain 7, cross bar 8, left rail 9, left guide block 10, right guide rail 11, right guide block 12 and spring 13 are pacified on wall
Equipped with framework 1, motor 2 is equipped in the middle part of 1 inner left wall of framework, 1 right side inner wall middle part of framework is embedded to be connected with bearing block 4, axis
It holds and is connected with shaft 3 in seat 4, the output axis connection of the left end of shaft 3 and motor 2 is equipped with roller 5 in the middle part of shaft 3, and 5, roller
Inside framework 1, it is connected with curtain 7 on roller 5, flat recess 6 is provided in the middle part of 1 lower wall of framework, curtain 7 passes through flat recess 6, framework
1 downside left part is equipped with left rail 9, and slidingtype is connected with left guide block 10 on left rail 9, and 1 downside right part of framework is equipped with right guide rail 11,
Slidingtype is connected with right guide block 12 on right guide rail 11, and left guide block 10 is located in same horizontal line with right guide block 12, left guide block 10 and
Cross bar 8 is connected between right guide block 12, cross bar 8 is connect with curtain 7, is respectively connected with spring on the downside of left guide block 10 and right guide block 12
13,13 lower end of spring of the left and right sides is connected to 11 downside of left rail 9 and right guide rail.
Embodiment 2
A kind of computer teaching projection screen wrap-up, as shown in Figure 1-3, include framework 1, motor 2, shaft 3,
Bearing block 4, roller 5, curtain 7, cross bar 8, left rail 9, left guide block 10, right guide rail 11, right guide block 12 and spring 13 are pacified on wall
Equipped with framework 1, motor 2 is equipped in the middle part of 1 inner left wall of framework, 1 right side inner wall middle part of framework is embedded to be connected with bearing block 4, axis
It holds and is connected with shaft 3 in seat 4, the output axis connection of the left end of shaft 3 and motor 2 is equipped with roller 5 in the middle part of shaft 3, and 5, roller
Inside framework 1, it is connected with curtain 7 on roller 5, flat recess 6 is provided in the middle part of 1 lower wall of framework, curtain 7 passes through flat recess 6, framework
1 downside left part is equipped with left rail 9, and slidingtype is connected with left guide block 10 on left rail 9, and 1 downside right part of framework is equipped with right guide rail 11,
Slidingtype is connected with right guide block 12 on right guide rail 11, and left guide block 10 is located in same horizontal line with right guide block 12, left guide block 10 and
Cross bar 8 is connected between right guide block 12, cross bar 8 is connect with curtain 7, is respectively connected with spring on the downside of left guide block 10 and right guide block 12
13,13 lower end of spring of the left and right sides is connected to 11 downside of left rail 9 and right guide rail.
It further include having fixed plate 14, electric pushrod 15, sliding rail 16, sliding block 17, rack gear 18, gear 19 and travel switch 20,
Right 11 right upper portion of guide rail is equipped with fixed plate 14, and middle side part is equipped with electric pushrod 15, right 11 right upper portion of guide rail in fixed plate 14
Equipped with sliding rail 16, slidingtype is connected with sliding block 17 on sliding rail 16, is connected with rack gear 18 on the right side of sliding block 17,18 downside of rack gear with it is electronic
15 top of push rod is connected, and 3 right end of shaft is equipped with gear 19, and gear 19 is located at 18 front side of rack gear, and gear 19 is engaged with rack gear 18, right
11 left upper portion of guide rail is equipped with travel switch 20, has circuit connection between travel switch 20 and electric pushrod 15.
Embodiment 3
A kind of computer teaching projection screen wrap-up, as shown in Figure 1-3, include framework 1, motor 2, shaft 3,
Bearing block 4, roller 5, curtain 7, cross bar 8, left rail 9, left guide block 10, right guide rail 11, right guide block 12 and spring 13 are pacified on wall
Equipped with framework 1, motor 2 is equipped in the middle part of 1 inner left wall of framework, 1 right side inner wall middle part of framework is embedded to be connected with bearing block 4, axis
It holds and is connected with shaft 3 in seat 4, the output axis connection of the left end of shaft 3 and motor 2 is equipped with roller 5 in the middle part of shaft 3, and 5, roller
Inside framework 1, it is connected with curtain 7 on roller 5, flat recess 6 is provided in the middle part of 1 lower wall of framework, curtain 7 passes through flat recess 6, framework
1 downside left part is equipped with left rail 9, and slidingtype is connected with left guide block 10 on left rail 9, and 1 downside right part of framework is equipped with right guide rail 11,
Slidingtype is connected with right guide block 12 on right guide rail 11, and left guide block 10 is located in same horizontal line with right guide block 12, left guide block 10 and
Cross bar 8 is connected between right guide block 12, cross bar 8 is connect with curtain 7, is respectively connected with spring on the downside of left guide block 10 and right guide block 12
13,13 lower end of spring of the left and right sides is connected to 11 downside of left rail 9 and right guide rail.
It further include having fixed plate 14, electric pushrod 15, sliding rail 16, sliding block 17, rack gear 18, gear 19 and travel switch 20,
Right 11 right upper portion of guide rail is equipped with fixed plate 14, and middle side part is equipped with electric pushrod 15, right 11 right upper portion of guide rail in fixed plate 14
Equipped with sliding rail 16, slidingtype is connected with sliding block 17 on sliding rail 16, is connected with rack gear 18 on the right side of sliding block 17,18 downside of rack gear with it is electronic
15 top of push rod is connected, and 3 right end of shaft is equipped with gear 19, and gear 19 is located at 18 front side of rack gear, and gear 19 is engaged with rack gear 18, right
11 left upper portion of guide rail is equipped with travel switch 20, has circuit connection between travel switch 20 and electric pushrod 15.
It further include having 7 shape plates 21, strut 22 and protective plate 23,14 upside right part of fixed plate is equipped with 7 shape plate, 21,7 shape plate 21
Top left side is equipped with strut 22, and the end of strut 22 is connected to 1 top right side of framework, and 22 left lower of strut is equipped with protective plate
23, protective plate 23 is located at 1 top of framework.
Preferred embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the inventive concept of the premise, several deformations can also be made, improves and substitutes, these are all
Belong to the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (3)
1. a kind of computer teaching projection screen wrap-up, which is characterized in that include framework (1), motor (2), shaft
(3), bearing block (4), roller (5), curtain (7), cross bar (8), left rail (9), left guide block (10), right guide rail (11), right guide block
(12) and spring (13) it, is equipped with framework (1) on wall, is equipped with motor (2) in the middle part of framework (1) inner left wall, on the right side of framework (1)
It is embedded in the middle part of inner wall to be connected with bearing block (4), it is connected with shaft (3) in bearing block (4), the left end and motor (2) of shaft (3)
Output axis connection, be equipped with roller (5) in the middle part of shaft (3), roller (5) is located inside framework (1), and roller is connected with curtain on (5)
Cloth (7), framework (1) lower wall middle part are provided with flat recess (6), and curtain (7) passes through flat recess (6), and left part is equipped with a left side on the downside of framework (1)
Guide rail (9), slidingtype is connected with left guide block (10) on left rail (9), and right part is equipped with right guide rail (11) on the downside of framework (1), and the right side is led
Slidingtype is connected with right guide block (12) on rail (11), and left guide block (10) and right guide block (12) are located in same horizontal line, left guide block
(10) it is connected between right guide block (12) cross bar (8), cross bar (8) is connect with curtain (7), left guide block (10) and right guide block (12)
Downside is respectively connected with spring (13), and spring (13) lower end of the left and right sides is connected under left rail (9) and right guide rail (11)
Side.
2. a kind of computer teaching projection screen wrap-up according to claim 1, which is characterized in that further include having
Fixed plate (14), electric pushrod (15), sliding rail (16), sliding block (17), rack gear (18), gear (19) and travel switch (20), it is right
Guide rail (11) right upper portion is equipped with fixed plate (14), and middle side part is equipped with electric pushrod (15) in fixed plate (14), right guide rail (11)
Right upper portion is equipped with sliding rail (16), and slidingtype is connected with sliding block (17) on sliding rail (16), is connected with rack gear on the right side of sliding block (17)
(18), it is connected on the downside of rack gear (18) with electric pushrod (15) top, shaft (3) right end is equipped with gear (19), and gear (19) is located at
On front side of rack gear (18), gear (19) is engaged with rack gear (18), and right guide rail (11) left upper portion is equipped with travel switch (20), and stroke is opened
Closing between (20) and electric pushrod (15) has circuit connection.
3. a kind of computer teaching projection screen wrap-up according to claim 2, which is characterized in that further include having
7 shape plates (21), strut (22) and protective plate (23), fixed plate (14) upside right part are equipped with 7 shape plates (21), 7 shape plates (21) top
Left side is equipped with strut (22), and the end of strut (22) is connected to framework (1) top right side, and strut (22) left lower is equipped with protection
Plate (23), protective plate (23) are located above framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385574.9U CN208240220U (en) | 2018-03-21 | 2018-03-21 | A kind of computer teaching projection screen wrap-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385574.9U CN208240220U (en) | 2018-03-21 | 2018-03-21 | A kind of computer teaching projection screen wrap-up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208240220U true CN208240220U (en) | 2018-12-14 |
Family
ID=64589469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820385574.9U Expired - Fee Related CN208240220U (en) | 2018-03-21 | 2018-03-21 | A kind of computer teaching projection screen wrap-up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208240220U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010020A (en) * | 2019-04-18 | 2019-07-12 | 广州龙珠美妆文化传播有限公司 | A kind of exploitation newsstand based on big data |
| CN112863258A (en) * | 2021-01-26 | 2021-05-28 | 河南应用技术职业学院 | Portable display device of multimedia teaching |
| CN113009766A (en) * | 2021-02-26 | 2021-06-22 | 徐少建 | Portable projection device capable of automatically accommodating and cleaning projection cloth |
| TWI748829B (en) * | 2020-12-30 | 2021-12-01 | 胡厚飛 | Recycling device for water writing cloth |
-
2018
- 2018-03-21 CN CN201820385574.9U patent/CN208240220U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010020A (en) * | 2019-04-18 | 2019-07-12 | 广州龙珠美妆文化传播有限公司 | A kind of exploitation newsstand based on big data |
| TWI748829B (en) * | 2020-12-30 | 2021-12-01 | 胡厚飛 | Recycling device for water writing cloth |
| CN112863258A (en) * | 2021-01-26 | 2021-05-28 | 河南应用技术职业学院 | Portable display device of multimedia teaching |
| CN112863258B (en) * | 2021-01-26 | 2023-01-17 | 河南应用技术职业学院 | Portable display device of multimedia teaching |
| CN113009766A (en) * | 2021-02-26 | 2021-06-22 | 徐少建 | Portable projection device capable of automatically accommodating and cleaning projection cloth |
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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: 20181214 Termination date: 20200321 |