CN209700215U - A kind of reflection prevention blackboard - Google Patents
A kind of reflection prevention blackboard Download PDFInfo
- Publication number
- CN209700215U CN209700215U CN201822008649.4U CN201822008649U CN209700215U CN 209700215 U CN209700215 U CN 209700215U CN 201822008649 U CN201822008649 U CN 201822008649U CN 209700215 U CN209700215 U CN 209700215U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- fixedly installed
- motor
- shell
- fixing seat
- 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
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of reflection prevention blackboards, including shell, light polarizing film is provided on the outside of the shell, the inside of the shell is slidably fitted with blackboard by motion bar, stainless steel frame is fixedly installed on the outside of the blackboard, motor and sliding rail are fixedly installed on rear side of the blackboard, the motor and push switch are electrically connected, slide bar is slidably fitted on the inside of the sliding rail, the slide bar is fixedly installed in the end of connecting plate, the two sides of the other end of the connecting plate are fixedly installed with connecting rod, the connecting rod rotational installation is in the middle part of attachment base, the attachment base is fixedly installed in the side of fixing seat, threaded hole is offered in the middle part of the fixing seat, the fixing seat is fixedly installed in the middle part of support plate by opening, screw rod is provided on the inside of the threaded hole, the screw rod is defeated by shaft coupling and motor Shaft is fixedly connected.The reflection prevention blackboard, counnter attack light effect is more preferable, of simple structure and strong practicability, can easily adjust the position of blackboard.
Description
Technical field
The utility model belongs to teaching equipment technical field, and in particular to a kind of reflection prevention blackboard.
Background technique
Present middle and primary schools classroom is imparted knowledge to students generally or using blackboard and chalk, and blackboard is located at the front in classroom,
By teacher in top writing and teaching content, student is watching below.However, the surface due to blackboard is more smooth, attend class in classroom
Classmate often have such impression, in the biggish situation of sunlight intensity, bright especially in summer in light, dazzling is strong
It spends higher sunlight to slant by window into after classroom, often be formed on blackboard reflective.Student is when looking at the blackboard, often
Word on blackboard can not be seen because light somewhere is too strong.Especially on window seat, sun light direct beam desktop,
By other side natural light, caused veiling reflection is even more serious on blackboard, not only influences student and attends class efficiency, makes student not
It can normally learn, can also aggravate the visual fatigue of student for a long time, the eyesight of student is caused to damage.So need to just use to anti-
Reflecting blackboard.
Reflection prevention blackboard in use at present avoids illumination only by structure of polarized light is arranged on the window of illumination
Onto blackboard, the case where reflecting is caused, counnter attack light effect is poor, blackboard reflective light cannot be fundamentally solved the problems, such as, so needing
A kind of novel reflection prevention blackboard is designed to come into operation.
Utility model content
The purpose of this utility model is to provide a kind of reflection prevention blackboards to come into operation, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of reflection prevention blackboard, including shell, institute
State and be provided with light polarizing film on the outside of shell, the inside of the shell is slidably fitted with blackboard by motion bar, the blackboard it is outer
Side is fixedly installed with stainless steel frame, and motor and sliding rail are fixedly installed on rear side of the blackboard, and the motor is opened with push type
It closes and is electrically connected, be slidably fitted with slide bar on the inside of the sliding rail, the slide bar is fixedly installed in the end of connecting plate, the company
The two sides of the other end of fishplate bar are fixedly installed with connecting rod, and the connecting rod rotational installation is in the middle part of attachment base, the company
Joint chair is fixedly installed in the side of fixing seat, and threaded hole is offered in the middle part of the fixing seat, and the fixing seat is solid by opening
Dingan County is loaded on the middle part of support plate, and screw rod is provided on the inside of the threaded hole, and the screw rod is exported by shaft coupling and motor
Axis is fixedly connected.
Preferably, the middle part of the case inside left and right sidewall offers sliding slot, and the inside of two sliding slots is sliding
It is dynamic that motion bar is installed, and two motion bars are fixedly installed in the middle part of stainless steel frame two sides respectively.
Preferably, opening is offered in the middle part of the support plate, the fixing seat is fixedly installed in the inside of opening, and solid
Reservation is connect by the threaded hole at middle part with screw flight.
Preferably, the two sides of the fixing seat are fixedly installed with attachment base, and two fixing seats pass through connecting rod point
It is not rotatablely connected with two connecting plates, two connecting plates are slidably connected with two sliding rails respectively by slide bar, and two cunnings
Rail is fixedly installed in the left and right on rear side of blackboard two respectively.
Preferably, the motor is fixedly installed in the middle part on rear side of blackboard by mounting base, the motor respectively with two
Push switch is electrically connected, and two push switch are all set in the lower part on the right side of shell, and motor is stepping electricity
Machine or servo motor.
Preferably, the support plate is fixedly installed in the middle part of case inside vertically, and light polarizing film is set to hull outside
Front.
The technical effect and advantage of the utility model: the reflection prevention blackboard drives screw rod rotation by motor.So that screw rod
It is movable in threaded hole in the middle part of fixed seat, to adjust blackboard in the activity of the inside of shell, it is irradiated to so as to adjust light source black
Angle and region on plate, and by scattering of the stainless steel frame to the absorption and light polarizing film of light source to light source, reinforce anti-
Reflecting effect effectively solves the problems, such as blackboard reflective light, practical.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the structural schematic diagram of shell；
Fig. 3 is the schematic diagram of internal structure of shell；
Fig. 4 is the connection schematic diagram of support plate and fixing seat；
Fig. 5 is the rearview of blackboard.
In figure: 1, shell；2, stainless steel frame；3, blackboard；4, motion bar；5, push switch；6, mounting base；7, electric
Machine；8, shaft coupling；9, screw rod；10, fixing seat；11, attachment base；12, connecting rod；13, connecting plate；14, support plate；15, slide bar；
16, sliding rail；17, sliding slot；18, it is open；19, light polarizing film；20, threaded hole.
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 making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of reflection prevention blackboard as shown in Figs. 1-5, including shell 1, the shell 1 it is outer
Side is provided with light polarizing film 19, and the inside of the shell 1 is slidably fitted with blackboard 3 by motion bar 4, and the outside of the blackboard 3 is solid
Dingan County is equipped with stainless steel frame 2, and the rear side of the blackboard 3 is fixedly installed with motor 7 and sliding rail 16, the motor 7 and push type
Switch 5 is electrically connected, and the inside of the sliding rail 16 is slidably fitted with slide bar 15, and the slide bar 15 is fixedly installed in connecting plate 13
End, the two sides of the other end of the connecting plate 13 are fixedly installed with connecting rod 12, and the rotational installation of connecting rod 12 is in even
The middle part of joint chair 11, the attachment base 11 are fixedly installed in the side of fixing seat 10, and the middle part of the fixing seat 10 offers spiral shell
Pit 20, the fixing seat 10 are fixedly installed in the middle part of support plate 14, the inside setting of the threaded hole 20 by opening 18
There is screw rod 9, the screw rod 9 is fixedly connected by shaft coupling 8 with 7 output shaft of motor.
Specifically, the middle part of the 1 inside left and right sidewall of shell offers sliding slot 17, two sliding slots 17 it is interior
Side is slidably fitted with motion bar 4, and two motion bars 4 are fixedly installed in the middle part of 2 two sides of stainless steel frame respectively, guarantees
Blackboard 3 can be by the motion bar 4 of 2 two sides of stainless steel frame in 17 inside Stable sliding of sliding slot, so that blackboard 3 is in shell 1
Side fore-aft travel reduces reflecting region, while stainless steel frame 2 and shell 1 have certain light source to adjust 3 position of blackboard
Absorbability reduces light reflected intensity, reaches and put back light effect.
Specifically, the middle part of the support plate 14 offers opening 18, the fixing seat 10 is fixedly installed in opening 18
Inside, and fixing seat 10 is threadedly coupled by the threaded hole 20 at middle part with screw rod 9, is rotated by screw rod 9, is passed through screw rod 9 and spiral shell
Pit 20 is threadedly engaged so that screw rod 9 is movable in the inside of the threaded hole 20 at 10 middle part of fixing seat, so that blackboard 3 be driven to adjust
In the position of shell 1, reduce lighting angle.
Specifically, the two sides of the fixing seat 10 are fixedly installed with attachment base 11, two fixing seats 10 pass through company
Extension bar 12 is rotatablely connected with two connecting plates 13 respectively, two connecting plates 13 by slide bar 15 respectively with two sliding rails 16
It is slidably connected, and two sliding rails 16 are fixedly installed in the left and right two of 3 rear side of blackboard respectively, guarantees screw rod 9 in threaded hole 20
During side is movable, connecting plate 13 is rotated in the one end at 11 middle part of attachment base, and the other end of connecting plate 13 passes through cunning
Bar 15 guarantees after 3 position of blackboard adjusts and finishes, two support plates 14 can be in blackboard 3 in the interior Slideslip of sliding rail 16
Rear side gives support effect, guarantees the stability write in teaching process, guarantees the stability used.
Specifically, the motor 7 is fixedly installed in the middle part of the rear side of blackboard 3 by mounting base 6, the motor 7 respectively with
Two push switch 5 are electrically connected, and two push switch 5 are all set in the lower part on the right side of shell 1, and motor 7
For stepper motor or servo motor, two push switch 5 are that motor 7 is powered after pressing down, and motor 7 is disconnected after release
Electricity, so that the rotation of motor 7 is to drive screw rod 9 to rotate, and then adjust 3 position of blackboard, and two push switch 5 make two
The output shaft positive and negative rotation of motor 7, so that inside fore-aft travel of the blackboard 3 in shell 1, adjusts position, and ensure that
The self-lock ability of motor 7 guarantees that 3 position of blackboard is stablized, writes and stablize by force.
Specifically, the support plate 14 is fixedly installed in the middle part of 1 inside of shell vertically, and light polarizing film 19 is set to shell
The front in 1 outside of body guarantees that the fixing seat 10 at 14 middle part of screw rod 9 and support plate cooperates so that blackboard 3 is adjusted in the inside of shell 1
Position achievees the effect that reduce reflective surface area, and is scattered by light polarizing film 19 to the light being irradiated on shell 1, to light
Source progress is a degree of to block, and increases the effect of reflection-proof.
Working principle: light source is irradiated shell 1 and blackboard 3, causes reflective situation, is opened by pressing push type
5 starting motors 7 are closed, so that the rotation of motor 7 is made to drive screw rod 9 to rotate by screw rod 9 and being threadedly engaged for threaded hole 20
Screw rod 9 is obtained in the inside activity of the threaded hole 20 at 10 middle part of fixing seat, to drive blackboard 3 by motion bar 4 in sliding slot 17
Slideslip adjusts blackboard 3 and reduces lighting angle in the position of shell 1 in the activity of the inside of shell 1, and passes through stainless steel framework
Frame 2 is scattered the absorption and light polarizing film 19 of light source to the light being irradiated on shell 1, carries out certain journey to light source
Blocking for degree, increases the effect of reflection-proof, two push switch 5 are that motor 7 is powered after pressing down, motor after release
7 power-off, so that the rotation of motor 7 is to drive screw rod 9 to rotate, and then adjust 3 position of blackboard, and two push switch 5 make
The output shaft positive and negative rotation of two motors 7 is obtained, so that inside fore-aft travel of the blackboard 3 in shell 1, adjusts position, and protect
The self-lock ability of motor 7 is demonstrate,proved, and screw rod 9, during 20 inside of threaded hole is movable, connecting plate 13 is in attachment base 11
The one end in portion is rotated, and the other end of connecting plate 13 passes through slide bar 15 in the interior Slideslip of sliding rail 16, guarantees at 3, blackboard
It sets after adjusting finishes, two support plates 14 can give support effect in the rear side of blackboard 3, guarantee that 3 position of blackboard is stablized,
It writes and stablizes by force.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of reflection prevention blackboard, including shell (1), it is characterised in that: be provided with light polarizing film on the outside of the shell (1)
(19), the inside of the shell (1) is slidably fitted with blackboard (3) by motion bar (4), the fixed peace in the outside of the blackboard (3)
Equipped with stainless steel frame (2), be fixedly installed with motor (7) and sliding rail (16) on rear side of the blackboard (3), the motor (7) with
Push switch (5) is electrically connected, and is slidably fitted with slide bar (15) on the inside of the sliding rail (16), the fixed peace of the slide bar (15)
The two sides of end loaded on connecting plate (13), the other end of the connecting plate (13) are fixedly installed with connecting rod (12), described
Connecting rod (12) is rotatablely installed in the middle part of attachment base (11), and the attachment base (11) is fixedly installed in the side of fixing seat (10)
Face offers threaded hole (20) in the middle part of the fixing seat (10), the fixing seat (10) by be open (18) be fixedly installed in
The middle part of support plate (14) is provided with screw rod (9) on the inside of the threaded hole (20), the screw rod (9) by shaft coupling (8) with
Motor (7) output shaft is fixedly connected.
2. a kind of reflection prevention blackboard according to claim 1, it is characterised in that: left and right sidewall on the inside of the shell (1)
Middle part offers sliding slot (17), and the inside of two sliding slots (17) is slidably fitted with motion bar (4), and two motion bars
(4) it is fixedly installed in the middle part of stainless steel frame (2) two sides respectively.
3. a kind of reflection prevention blackboard according to claim 1, it is characterised in that: offered in the middle part of the support plate (14)
It is open (18), the fixing seat (10) is fixedly installed in the inside of opening (18), and the threaded hole that fixing seat (10) passes through middle part
It is threadedly coupled with screw rod (9).
4. a kind of reflection prevention blackboard according to claim 1, it is characterised in that: the two sides of the fixing seat (10) are fixed
It is equipped with attachment base (11), two fixing seats (10) are connected with two connecting plate (13) rotations respectively by connecting rod (12)
It connects, two connecting plates (13) are slidably connected with two sliding rails (16) respectively by slide bar (15), and two sliding rails (16) point
It is not fixedly installed in the left and right two on rear side of blackboard (3).
5. a kind of reflection prevention blackboard according to claim 1, it is characterised in that: the motor (7) is solid by mounting base (6)
Dingan County is loaded on the middle part on rear side of blackboard (3), and the motor (7) is electrically connected with two push switch (5) respectively, described in two
Push switch (5) is all set in the lower part on the right side of shell (1), and motor (7) is stepper motor or servo motor.
6. a kind of reflection prevention blackboard according to claim 1, it is characterised in that: the support plate (14) is fixedly mounted vertically
Middle part on the inside of shell (1), and light polarizing film (19) is set to the front on the outside of shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008649.4U CN209700215U (en) | 2018-12-03 | 2018-12-03 | A kind of reflection prevention blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008649.4U CN209700215U (en) | 2018-12-03 | 2018-12-03 | A kind of reflection prevention blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209700215U true CN209700215U (en) | 2019-11-29 |
Family
ID=68635881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822008649.4U Expired - Fee Related CN209700215U (en) | 2018-12-03 | 2018-12-03 | A kind of reflection prevention blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209700215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115131998A (en) * | 2022-07-25 | 2022-09-30 | 广东瑞有科技股份有限公司 | Wireless concatenation electronic blackboard |
-
2018
- 2018-12-03 CN CN201822008649.4U patent/CN209700215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115131998A (en) * | 2022-07-25 | 2022-09-30 | 广东瑞有科技股份有限公司 | Wireless concatenation electronic blackboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103950320B (en) | A kind of rolling type white board | |
| CN209700215U (en) | A kind of reflection prevention blackboard | |
| CN111105654B (en) | English teaching aid beneficial to improving English teaching efficiency | |
| CN211118476U (en) | Angle adjusting device for projection of statistical projector | |
| CN209351130U (en) | A kind of multi-functional blackboard | |
| CN209683282U (en) | A kind of adjustable blackboard for education facilitating multi-angle observation | |
| CN211349608U (en) | English teaching aid beneficial to improving English teaching efficiency | |
| CN209839558U (en) | Display device for research and development of solar lighting system | |
| CN210004100U (en) | three-view projection teaching aid | |
| CN108378567A (en) | A kind of computer internet student electronic desk | |
| CN112622490B (en) | Anti-reflection device for education and teaching | |
| CN211375917U (en) | Ideological and political theory teaching speech board | |
| CN214847326U (en) | Financial specialty is economic curve and is illustrated board for study | |
| CN211906552U (en) | Real teaching device that instructs of computer simulation | |
| CN210462242U (en) | Think political affairs projection arrangement for training | |
| CN112780984A (en) | Anti-reflection device of electronic blackboard for teaching and use method thereof | |
| CN209817742U (en) | Frameless light-adjusting glass door | |
| CN209804073U (en) | Business english teaching vocabulary display device | |
| CN209265876U (en) | A kind of finance exchange rate displaying device | |
| CN113415099A (en) | Two-sided shade of whiteboard of multimedia device | |
| CN205143921U (en) | Many function combination podium | |
| CN210510907U (en) | Projection device without screen | |
| CN215069092U (en) | A display device for campus information | |
| CN214222622U (en) | Projecting apparatus support is used in teaching | |
| CN216556134U (en) | Calculus model stereoscopic projection display device for college teaching |
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: 20191129 Termination date: 20201203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |