CN202271734U

CN202271734U - Electronic blackboard eraser

Info

Publication number: CN202271734U
Application number: CN2011203697902U
Authority: CN
Inventors: 程允彬; 蔡圆; 沈兵; 姜健生
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2011-10-08
Filing date: 2011-10-08
Publication date: 2012-06-13
Anticipated expiration: 2021-10-08

Abstract

The utility model relates to an electronic blackboard eraser. The electronic blackboard eraser consists of a sub box and a mother box; the outer part of the sub box comprises a sub box frame, a cloth erasing surface, metal adsorption sheets, a reset button and a charge interface; the inner part of the sub box comprises a singlechip, a power supply, a voltage amplification circuit, and a gravity acceleration transducer; the mother box comprises a mother box frame, a motor, an eccentric wheel, springs, hair brushes, a horizontal sliding plate and a drawer; and the gravity acceleration transducer is adopted by the sub box, so the erasing actions of a teacher can be sensed automatically, and the switch-on and switch-off of the power supply can be automatically controlled. When the teacher erases a blackboard, acceleration is generated, the transducer senses the acceleration, and the power supply is automatically switched on; and when the teacher stops erasing the blackboard, acceleration is not generated, and the power supply is automatically switched off. After the teacher erases the blackboard, the sub box is placed in the mother box, the horizontal sliding plate which can move back and forth under the action of the motor can automatically bush off dust on the surface of the sub box, and the dust is recovered into the drawer at the bottom of the mother box; and the electronic blackboard eraser is simple and convenient, and energy-saving and environment-friendly.

Description

A kind of electronic blackboard is wiped

Technical field

The utility model relates to a kind of blackboard eraser, and particularly a kind of electronic blackboard is wiped, and belongs to the teaching equipment field.

Background technology

The blackboard eraser of using with school the inside in the market all is the conventional plastic blackboard eraser basically, though this kind of blackboard eraser is light, the convenient use has distinct disadvantage: can produce a large amount of chalk dusts when traditional blackboard erases the board, endanger teachers and students' health; The chalk dust that produces flies away everywhere, not only contaminated air but also waste resource.In addition, up-to-date on the market a dust absorption blackboard eraser, the principle of the dust catcher that it adopts developed; The dust that produces when erasing the board sucks in the blackboard eraser chamber, but it has open defect is also arranged: first power consumption is big, owing to adopt the dust catcher principle; But power consumption is huge though cause reaching pick-up performance, and the second, volume is big; Noise is big, because his dust is directly to suck in the cavity of blackboard eraser, so bulky; The noise that fan produces during dust suction is very big, the learning efficiency that can hinder teachers and students on the classroom.

The utility model content

To defective of the prior art; The purpose of the utility model provides a kind of electronic blackboard and wipes, and it not only can erase the board, and more can adsorb the dust that produces when erasing the board; Even can the chalk dust of absorption be recycled; When erasing the board, solution produces the problem of a large amount of chalk dusts, and both economical, environmental protection again.

For achieving the above object, the utility model adopts following technical scheme:

A kind of electronic blackboard is wiped, and it is made up of sub-box, female box,

Said sub-box outside comprises sub-box framework, cloth wiping face, metal adsorption sheet, SR and charging inlet, and said cloth wiping face sticks in the middle of the said sub-box framework surface; Two said metal adsorption sheets are separately fixed at the left and right sides that the said cloth in said sub-box framework surface is wiped face; Have aperture on the said metal adsorption sheet; Have wire to pass aperture on said metal adsorption sheet, said sub-box framework is provided with said SR and said charging inlet; Said sub-box inside comprises single-chip microcomputer, power supply, voltage amplifier circuit, acceleration of gravity sensor; The both positive and negative polarity of said power supply links to each other with the wire that runs through said metal adsorption sheet through said voltage amplifier circuit; Said single-chip microcomputer respectively with said acceleration of gravity sensor, said power supply links to each other with said SR; Said power supply links to each other with said acceleration of gravity sensor with said charging inlet respectively;

Said female box comprises female box framework, motor, eccentric wheel, spring, hairbrush, horizontal slide plate and drawer; Said eccentric wheel is installed on the said motor, and contacts with said horizontal slide plate; Two said spring one ends are fixed on said female box framework, and the other end is fixed on the said horizontal slide plate; Said hairbrush is fixed on the said horizontal slide plate; Said drawer places the bottom of said female box framework; Said horizontal slide plate also comprises the handle that stretches out said female box framework.

The utility model has following conspicuous outstanding substantive distinguishing features compared with prior art:

The utility model blackboard eraser adopts the female box combining structure of sub-box, and the acceleration of gravity sensor that sub-box adopts can be responded to the action that teacher erases the board automatically, and the switch of automatic control power supply.Being a teacher produces acceleration when erasing the board, sensor receives the induction self-opening power supply, does not have acceleration to produce when teacher stops to erase the board, and power supply is closed automatically.So not only simple and convenient but also energy-conserving and environment-protective.Female box reclaims dust automatically.Be a teacher and when having wiped blackboard box put into female box, the horizontal slide plate that under the motor effect, moves around can be brushed the dust on sub-box surface fall and be recycled in the drawer of female box bottom automatically, and is simple and convenient.

Description of drawings

Fig. 1 is the sub-box external structure of a utility model sketch map.

Fig. 2 is the sub-box internal structure of a utility model sketch map.

Fig. 3 is the female box overall structure of a utility model sketch map.

Fig. 4 is the female box plan structure of a utility model sketch map.

The specific embodiment

Embodiment to the utility model describes in further detail below in conjunction with accompanying drawing,

As depicted in figs. 1 and 2, said sub-box outside comprises that sub-box framework 1, cloth wipe face 2, metal adsorption sheet 3, SR 4 and charging inlet 9, and said cloth is wiped face 2 and sticked in the middle of said sub-box framework 1 surface; Two said metal adsorption sheets 3 are separately fixed at the left and right sides that said sub-box framework 1 surperficial said cloth is wiped face 2; Have aperture on the said metal adsorption sheet 3; Have wire to pass aperture on said metal adsorption sheet 3, said sub-box framework 1 is provided with said SR 4 and said charging inlet 9; Said sub-box inside comprises single-chip microcomputer 5, power supply 6, voltage amplifier circuit 7, acceleration of gravity sensor 8; The both positive and negative polarity of said power supply 6 links to each other with the wire that runs through said metal adsorption sheet 3 through said voltage amplifier circuit 7; Said single-chip microcomputer 5 respectively with said acceleration of gravity sensor 8, said power supply 6 links to each other with said SR 4; Said power supply 6 links to each other with said acceleration of gravity sensor 8 with said charging inlet 9 respectively.

Like Fig. 3 and shown in Figure 4, said female box comprises female box framework 10, motor 11, eccentric wheel 17, spring 12, hairbrush 13, horizontal slide plate 15 and drawer 14; Said eccentric wheel 17 is installed on the said motor 11, and contacts with said horizontal slide plate 15; Two said spring 12 1 ends are fixed on said female box framework 10, and the other end is fixed on the said horizontal slide plate 15; Said hairbrush 13 is fixed on the said horizontal slide plate 15; Said drawer 14 places the bottom of said female box framework 10; Said horizontal slide plate 15 also comprises the handle 16 that stretches out said female box framework 10.

The group box is picked up when using, and senses sub-box Gravity changer by the acceleration of gravity sensor 8 of single-chip microcomputer 5 controls, and opening power 6 acts on metal adsorption sheet 3 automatically, makes to be full of static on it, can efficiently adsorb slight small item bodies such as chalk dust.When erasing the board; Cloth is wiped face 2 writing on the blackboard is wiped totally; The chalk dust part that produce this moment is stayed cloth and is wiped on the face 2, and another part is wiped metal adsorption sheet 3 absorption of face 2 both sides by cloth, does not blow out outside the blackboard eraser so do not have chalk dust in the process that erases the board.If do not have static on the metal adsorption sheet 3, can press SR 4, single-chip microcomputer 5 is resetted, to receive the sub-box Gravity changer of acceleration of gravity sensor 8 inductions again.

Wiped after the blackboard, sub-box inserts female box, and the cloth of sub-box is wiped face 2 and just contacted the hairbrush 13 on female box horizontal slide plate 15.Open the switch of female box motor 11; Motor 11 is started working, and motor 11 drives eccentric wheel 17 and rotates, when eccentric wheel 17 contacts with horizontal slide plate 15; Promoting horizontal slide plate 15 moves forward; When eccentric wheel 17 and horizontal slide plate 15 are separated, under the tension of spring 12, move backward, so horizontal slide plate 15 can move around in chute; 14 li in female box drawer is brushed and be recycled to hairbrush 13 on it with the chalk dust on blackboard eraser surface, to reach the function that chalk dust is recycled; When motor can't be worked, handle 16 levels that can spur horizontal slide plate 15 slidably reciprocated, and drive hairbrush 13 chalk dust on the sub-box is recycled in the drawer 14 of female box.Through above process, teacher has just accomplished the writing on the blackboard has been removed, and the institute that chalk dust is recycled in steps, not only simple and practical but also energy-conserving and environment-protective.

Claims

1. an electronic blackboard is wiped, and it is characterized in that: it is made up of sub-box, female box,

Said sub-box outside comprises sub-box framework (1), cloth wiping face (2), metal adsorption sheet (3), SR (4) and charging inlet (9), and said cloth is wiped face (2) and sticked in the middle of said sub-box framework (1) surface; Two said metal adsorption sheets (3) are separately fixed at the left and right sides that the surperficial said cloth of said sub-box framework (1) is wiped face (2); Have aperture on the said metal adsorption sheet (3); Have wire to pass aperture on said metal adsorption sheet (3), said sub-box framework (1) is provided with said SR (4) and said charging inlet (9); Said sub-box inside comprises single-chip microcomputer (5), power supply (6), voltage amplifier circuit (7), acceleration of gravity sensor (8); The both positive and negative polarity of said power supply (6) links to each other with the wire that runs through said metal adsorption sheet (3) through said voltage amplifier circuit (7); Said single-chip microcomputer (5) respectively with said acceleration of gravity sensor (8), said power supply (6) links to each other with said SR (4); Said power supply (6) links to each other with said acceleration of gravity sensor (8) with said charging inlet (9) respectively;

Said female box comprises female box framework (10), motor (11), eccentric wheel (17), spring (12), hairbrush (13), horizontal slide plate (15) and drawer (14); Said eccentric wheel (17) is installed on the said motor (11), and contacts with said horizontal slide plate (15); Two said spring (12) one ends are fixed on said female box framework (10), and the other end is fixed on the said horizontal slide plate (15); Said hairbrush (13) is fixed on the said horizontal slide plate (15); Said drawer (14) places the bottom of said female box framework (10); Said horizontal slide plate (15) also comprises the handle (16) that stretches out said female box framework (10).