Electric blackboard
A blackboard and electric technology, which is applied to blackboard or slate cleaning devices, reusable writing boards, printing, etc., can solve the problem that the tension of the flexible blackboard cannot be automatically adjusted, the effect of erasing characters is not good, and the flexible blackboard is off-track, etc. problem, to achieve the effect of economical transmission mode, increased writing effect, and low cost
Inactive Publication Date: 2005-04-20
南京富达教学设备科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to design a new electric blackboard for the problems existing in the current electric blackboard, so as to solve the deflection of the flexible blackboard existing in the existing electric blackboard, and the tension degree of the flexible blackboard cannot be automatically adjusted after thermal expansion and contraction. Problems such as poor text effect and loud noise
Method used
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[0027] The present invention will be further described below in conjunction with drawings and embodiments.
[0028]Referring to the accompanying drawings, press the control switch 31, the motor 1 transmits the power to the character wiping roller brush 8 on the left side, the lower end shaft of the character wiping roller brush 8 and the powder removing roller brush 9 is connected with a synchronous pulley group 23, and the two wipers The character roller brush 8 and a powder removing roller brush 9 abut against each other and rotate relative to the brush, and the powder removing roller brush 9 effectively removes the dust attached to the two word erasing roller brushes 8, ensuring that the two character erasing roller brushes Not be polluted by dust circulation, the other end shaft of powder removing roller brush 9 is connected with driving wheel 22, and it transmits power to driving wheel 30 by driving wheel 26 and driving wheel 27, and the speed of rotation is deceleration f...
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An electric blackboard for teaching, which consists of a motor (1), a flexible blackboard (12), a driving wheel (30), a driven wheel (15), a tensioning support (16), an automatic balancer (11), and a character-erasing rolling brush (8 ), powder removing roller brush (9), frame (29), outer cover (35), control box and other components, and the processes of character wiping, powder removal and dust collection are all carried out in the control box, which has no impact on the environment and teachers and students. The flexible blackboard (12) is sleeved on the driving wheel (30) and the driven wheel (15), and the tension brace (16) can push the driven wheel (15) to move left and right, so that the flexible blackboard (12) can work normally without changing the temperature. The balancer (11) prevents the flexible blackboard (12) from drifting due to the influence of gravity, and the character erasing roller brush (8) can realize two functions of erasing characters and retaining characters under the action of the clutch roller (41), and the power is transmitted through the transmission belt , low noise, the present invention is improved on the basis of patent No. 97221507.7, its structure is more reasonable, easy to manufacture, low in cost, easy to use, clean and hygienic, it is an ideal electric blackboard.
Description
technical field [0001] The invention relates to an electric blackboard in teaching equipment. Background technique [0002] At present, most of the blackboards used for education in large, middle and primary schools are traditional hard blackboards. The chalk characters are manually erased, and the dust floats all over the classroom, which makes teachers and students susceptible to respiratory diseases and damages the health of teachers and students. It is time-consuming and laborious, affects the teaching effect, and takes up precious teaching time. This kind of primitive teaching equipment is not suitable for modern education and does not meet the requirements of environmental protection. Therefore, it is a practical way to use electric blackboards to automatically erase and collect dust. Effective way, it not only keeps the existing education mode, makes teachers and students easy to accept, but also solves the erasure of chalk characters and the collection of dust, as th...
Claims
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IPC IPC(8): B43L1/08B43L21/00
Inventor 裴志胜裴春光
Owner 南京富达教学设备科技有限公司