CN201587234U - Blackboard device with function of brightness self-adjustment for vision aiding - Google Patents
Blackboard device with function of brightness self-adjustment for vision aiding Download PDFInfo
- Publication number
- CN201587234U CN201587234U CN2009200769494U CN200920076949U CN201587234U CN 201587234 U CN201587234 U CN 201587234U CN 2009200769494 U CN2009200769494 U CN 2009200769494U CN 200920076949 U CN200920076949 U CN 200920076949U CN 201587234 U CN201587234 U CN 201587234U
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- blackboard
- led lamp
- blackboard device
- rotating shaft
- lamp
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- Expired - Fee Related
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Abstract
The utility model discloses a blackboard device with the function of brightness self-adjustment for vision aiding. The blackboard device comprises an LED lamp, a lamp plate, a blackboard body, a support rack and a storage battery, wherein the LED lamp is mounted on the lamp plate through the support rack and is positioned at the upper part of the blackboard body; and the storage battery is connected with the LED lamp through a controller. With the change of the ambient light, the supplied current of the blackboard device can be changed automatically, and therefore the purpose of adjusting brightness automatically is achieved. The product of the utility model can help students to easily see the characters on a traditional blackboard clearly in a distance or under dim light, thereby well protecting students' vision.
Description
Technical field
The utility model belongs to teaching aid design and manufacturing technology field, is specifically related to a kind of automatic control viewing-aid blackboard device that helps to protect observer's eyesight.Particularly the student on class or in the meeting, when light is dark, the brightness that can improve environment greatly.This device comprises mechanic adjustment unit and light automaton two parts, has conveniently, easy operating and characteristics such as be quick on the draw.
Background technology
Existing blackboard generally is that brushing paint is made on plank or ground glass, and the advantage of this blackboard is that cost is low, is convenient to write.Raising along with the teaching environment condition; when when rainy weather daylighting is bad; we can come the deficiency of polishing light with fluorescent lamp; it is exactly along with multimedia use that but present this traditional blackboard also has a significant disadvantage; we often will simultaneously use multimedia to carry out teaching demonstration; one side is assisted on blackboard and is write; this a pair of contradiction often occurs: multimedia requires light dark more good more; can give prominence to the brightness of screen like this; and the blackboard requirement is bright and clear; can see to arrange the student after an action of the bowels, also can protect student eyesight simultaneously.Under situation about having a power failure, blackboard can't continue to use in addition.Therefore traditional blackboard need improve, to satisfy the requirement of modern teaching or meeting.
Present viewing-aid blackboard is playing positive role to the sight protectio that improves the student in varying degrees; but also inevitably there is some deficiency; have dazzling and writing is not very clear and is unfavorable for normally watching of student for the light that causes of white owing to background; the blackboard to traditional that has changes; can not adapt to the requirement of traditional blackboard, therefore replacing is installed make things convenient for inadequately.Present in addition light emitting source can not change the brightness of regulating illumination automatically according to the light in the external world, and intelligent degree is not high.
The utility model content
The purpose of this utility model is the defective that exists at present prior art; a kind of viewing-aid blackboard device of automatic adjusting brightness is provided; when remote or light is dark; particularly when multimedia and traditional blackboard are used simultaneously; observer (student) can see the writing on the blackboard easily clearly, thereby reaches the purpose of long-term protection observer eyesight.This device adopts the thought of electromechanical integration, will control with mechanism is effective to combine, characteristics such as have easy to use, easy operating and be quick on the draw.
The blackboard of realization the utility model purpose helps the technical scheme of view apparatus:
A kind of blackboard of automatic adjusting brightness helps view apparatus, comprises LED lamp, lamp plate, blackboard plate body, holding screw, bracing frame and battery.Described LED lamp is installed on the described lamp plate by support frame as described above, and is positioned at described blackboard plate body top; Described battery or AC power connect described LED lamp through a controller.
Described lamp plate is fixedlyed connected with a rotating shaft, and the pin-and-hole of described rotating shaft and support frame as described above is rotationally connected, and support frame as described above is fixed on the metope; Described rotating shaft and an adjusting brightness angle changing mechanism connect.
Described adjusting lighting angle mechanism is: a rotation handwheel is fixedlyed connected with a gear shaft, and described gear shaft is meshed with a tooth bar, and gear shaft rotating band carry-over bar is moved up and down; A connecting rod lower end and described tooth bar hinge, an end hinge of the upper end of described connecting rod and a hinge bar; The other end interference socket of described rotating shaft and described hinge bar.
The total described lamp plate of 2-5 piece is parallel to link together with described rotating shaft side by side.The front end of described lamp plate is fixed a diffusing glass, when the setting angle of described diffusing glass can make this LED light irradiation light is disperseed to be reflected on the blackboard.
The circuit structure that above-mentioned controller connects the LED lamp is: microcontroller is connected on the led driver, described led driver connects a phototriode, can be according to the different sizes of regulating electric current automatically of ambient lighting, described led driver links to each other with a light emitting diode; Described light emitting diode can send white light thereby light source is provided, and different intensities of illumination can be provided according to the difference of environment.
The utility model compared with prior art has following remarkable advantage and good effect:
(1) the utility model is stronger to blackboard for education condition adaptability.As everyone knows; the use of electronic blackboard is less at present; the most of blackboards in the whole nation also rest on ground glass and plank stage; even in some education funds shortage areas; most of blackboard also rests on the cement blackboard stage; they are just smeared one deck paint and just use on the plate face; therefore the writing on the blackboard just is difficult to see clearly writing under remote or situation that light is darker; in addition; it is exactly along with multimedia use that present this traditional blackboard also has a significant disadvantage; we often will simultaneously use multimedia to carry out teaching demonstration, and one side is assisted on blackboard and write, and this a pair of contradiction often occurs: multimedia requires light dark more good more; can give prominence to the brightness of screen like this; and the blackboard requirement is bright and clear, can see to arrange the student after an action of the bowels, also can protect student eyesight simultaneously.Under situation about having a power failure, blackboard can't continue to use in addition.At present the helping the measure of looking to concentrate on to change and be equipped with on the blackboard of illuminating lamp of these situations, be inappropriate obviously for the huge blackboard of national number.This cover blackboard helps view apparatus need not change original blackboard, is only permitted to do slightly just to change can use fully.
(2) this utility model adopts gear shaft to be meshed with tooth bar, rotation is converted into straight moving, so we can rotate the angle that handwheel just can conveniently be regulated the lamp photograph by rotation, so be easy to the staff and operate, and comfortable convenient.
(3) this utility model adopt development at present very rapidly the LED lamp therefore have energy-conservation, characteristics such as illumination stable, environmental protection, applicability is strong, the life-span is long, the response time is short as light source.Its light source of cool colour light of providing of LED lamp has bright sensation near natural daylight in addition, and people's energy is concentrated, and is specially adapted to places such as meeting room, classroom, drafting room.
(4) this utility model adopts battery and alternating current to use simultaneously, can be when using alternating current on one side to charge in batteries, and one side powers to the LED lamp; Under situation about having a power failure, battery can continue to the power supply of LED lamp, so that teaching is normally carried out in addition.
(5) this utility model adopts the thought of dynamo-electric combination, adopts advanced at present electronic technology, can automatically adjust according to the variation of the environment electric current to the LED lamp, and then reach the purpose of automatic adjusting brightness.This device reaction sensitivity, antijamming capability is strong.
(6) this utility model adopts on lamp plate and adds diffusing glass, and certain angle is arranged, and can prevent that so not only the outer of light from penetrating, and influences the observer, and by light is scattered to blackboard, can reach the purpose of increase brightness.
Description of drawings
Fig. 1 is that the utility model blackboard helps the machinery of view apparatus to carry out schematic diagram;
Fig. 2 is gear shaft and tooth bar engagement cutaway view;
Fig. 3 is the utility model self-regulation brightness schematic block circuit diagram.
The specific embodiment
A preferred embodiment accompanying drawings of the present utility model is as follows:
Referring to Fig. 1, Fig. 2, this is automatically regulated brightness viewing-aid blackboard device and comprises a rotation handwheel 3, and rotate handwheel 3 and gear shaft 12 and be connected by pin, when rotating handwheel 3 rotations, 12 rotations of driven gear axle; Gear shaft 12 is installed in the gear shaft supporting sleeve 16, and with tooth bar 14 engagements, when gear shaft 12 rotations, tooth bar 14 moves up and down, and therefore rotatablely moving of part is transformed into for rectilinear motion.Tooth bar 14 and a cover plate 13 matched in clearance are limited in tooth bar 14 in the chute of gear shaft sleeve 16, and tooth bar 14 stretches out ships and resell on another market 15, hinged with connecting rod 5, and along with moving up and down of tooth bar 14, connecting rod 5 rotatablely moves; Connecting rod 5 is hinged with hinge bar 9 one ends, drives hinge bar 9 rotations during connecting rod 5 rotations, and the other end of hinge bar 9 is connected in the rotating shaft 1 by a holding screw 8, therefore drives rotating shaft 1 when hinge bar 9 rotates and rotates synchronously; Dress axle 1 is connected on the metope 11 by shaft supporting frame 10, and 5 lamp plates 7 are housed in the rotating shaft 1, is evenly distributed in the rotating shaft 1; Lamp plate 7 has certain angle, is connected with LED lamp 2 on the leading portion, and diffusing glass 6 is equipped with in the rear section, and when light-illuminating, diffusing glass 6 can be dispersed in the light reflection on the blackboard, to increase brightness.Whole mechanical device can rotate the angle of lamp plate 7 by the rotation of rotating handwheel 3, reaches the purpose of regulating lighting angle.
Fig. 3 is this automatic control section schematic block circuit diagram of regulating brightness viewing-aid blackboard device automatically, and the mode that power supply 20 adopts alternating current to combine with battery 19 is used alternating current in the time of general work, can also charge to battery 19 simultaneously; We adopt battery 19 to guarantee normally carrying out of teaching when having a power failure.Adopt microcontroller 21 and 23 pairs of electric currents of external adjusting resistance to control in the controller 18, so that regulate the brightness of LED lamp 2.Microcontroller 21 is connected with led driver 22, led driver 22 is connected with the phototriode 24 of induced environment light source simultaneously, surround lighting is bright more, the internal resistance of phototriode 24 is more little, big more by electric current, 22 pairs of LED lamp 2 output currents of the size of this electric current and led driver are inversely proportional to, and therefore the electric current by LED lamp 2 becomes big, it is big that 2 brightness of LED lamp become, thereby reached the purpose of automatic adjusting brightness.
Claims (5)
1. regulate brightness viewing-aid blackboard device automatically for one kind, comprise LED lamp (2), lamp plate (7), blackboard plate body (4), holding screw (8), bracing frame (10) and battery (19), it is characterized in that described LED lamp (2) is installed on the described lamp plate (7) by support frame as described above (10), and be positioned at described blackboard plate body (4) top; Described battery (19) or AC power (20) connect described LED lamp (2) through a controller (18).
2. automatic adjusting brightness viewing-aid blackboard device according to claim 1, it is characterized in that described lamp plate (7) fixedlys connected with a rotating shaft (1), described rotating shaft (1) is rotationally connected with the pin-and-hole of support frame as described above (10), and support frame as described above (10) is fixed on the metope (11); Described rotating shaft (1) is regulated the connection of brightness angle changing mechanism with one.
3. automatic adjusting brightness viewing-aid blackboard device according to claim 2, it is characterized in that described adjusting lighting angle mechanism is: a rotation handwheel (3) is fixedlyed connected with a gear shaft (12), described gear shaft (12) is meshed with a tooth bar (14), and gear shaft (12) rotating band carry-over bar (14) is moved up and down; Connecting rod (a 5) lower end and described tooth bar (14) hinge, an end hinge of the upper end of described connecting rod (5) and a hinge bar (9); The other end interference socket of described rotating shaft (1) and described hinge bar (9).
4. automatic adjusting brightness viewing-aid blackboard device according to claim 1 is characterized in that total 2-5 piece lamp plate (7) is parallel to link together with described rotating shaft (1) side by side.
5. automatic adjusting brightness viewing-aid blackboard device according to claim 1, the front end that it is characterized in that described lamp plate (7) is fixed a diffusing glass (6), when the setting angle of described diffusing glass (6) can make this LED lamp (2) irradiation light is disperseed to be reflected on the blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200769494U CN201587234U (en) | 2009-06-26 | 2009-06-26 | Blackboard device with function of brightness self-adjustment for vision aiding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200769494U CN201587234U (en) | 2009-06-26 | 2009-06-26 | Blackboard device with function of brightness self-adjustment for vision aiding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201587234U true CN201587234U (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200769494U Expired - Fee Related CN201587234U (en) | 2009-06-26 | 2009-06-26 | Blackboard device with function of brightness self-adjustment for vision aiding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201587234U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015526A (en) * | 2014-05-31 | 2014-09-03 | 张宁 | Chinese multimedia teaching blackboard |
| CN105355098A (en) * | 2015-11-19 | 2016-02-24 | 华蓥市双河第二初级中学 | Multi-screen dynamic education display apparatus |
| CN107221202A (en) * | 2017-07-20 | 2017-09-29 | 安庆状元郎电子科技有限公司 | A kind of interactive blackboard of automatic regulating lightness |
| CN108443775A (en) * | 2018-04-24 | 2018-08-24 | 山东方星光电科技有限公司 | A kind of blackboard light compensating apparatus and light filling blackboard |
| CN108674061A (en) * | 2018-07-05 | 2018-10-19 | 李海龙 | A kind of clipboard |
| CN109109520A (en) * | 2018-10-16 | 2019-01-01 | 韩金轩 | Strengthened glass blackboard is used in a kind of teaching |
-
2009
- 2009-06-26 CN CN2009200769494U patent/CN201587234U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015526A (en) * | 2014-05-31 | 2014-09-03 | 张宁 | Chinese multimedia teaching blackboard |
| CN105355098A (en) * | 2015-11-19 | 2016-02-24 | 华蓥市双河第二初级中学 | Multi-screen dynamic education display apparatus |
| CN107221202A (en) * | 2017-07-20 | 2017-09-29 | 安庆状元郎电子科技有限公司 | A kind of interactive blackboard of automatic regulating lightness |
| CN108443775A (en) * | 2018-04-24 | 2018-08-24 | 山东方星光电科技有限公司 | A kind of blackboard light compensating apparatus and light filling blackboard |
| CN108674061A (en) * | 2018-07-05 | 2018-10-19 | 李海龙 | A kind of clipboard |
| CN109109520A (en) * | 2018-10-16 | 2019-01-01 | 韩金轩 | Strengthened glass blackboard is used in a kind of teaching |
| CN109109520B (en) * | 2018-10-16 | 2020-08-21 | 上海众屹科技有限公司 | Toughened glass blackboard for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20110626 |