CN2400288Y

CN2400288Y - Automatic dust-removing blackboard capable of storing content

Info

Publication number: CN2400288Y
Application number: CN 99246182
Authority: CN
Inventors: 崔宝科
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-24
Filing date: 1999-09-24
Publication date: 2000-10-11
Anticipated expiration: 2009-09-24

Abstract

The utility model relates to an automatic dust removing blackboard capable of storing content. The utility model mainly comprises a piece of writing cloth, an upper roller, a lower roller, a dust removing roller, motors, an electromagnet, touch switches A, B, tension springs, etc. A roller motor drives the upper and the lower rollers to rotate so as to drive the writing cloth to move. A dust removing motor drives the dust removing roller to rotate so as to realize the purpose of erasing a blackboard. The lower parts of both ends of the dust removing roller are respectively provided with a magnet, and the upper parts of the dust removing roller are respectively provided with a tension spring. The edge of the writing cloth is provided with positioning points for a blackboard surface, and a corresponding stroke positioning switch is arranged in the blackboard. The utility model overcomes the defect that an electric blackboard in the prior art can not store content, and avoids the inconvenience that the writing surface of the blackboard can not automatically stay. The utility model achieves the purposes of storing 100 percents of the content on the writing surface of the blackboard, automatically easing the blackboard, and automatically positioning the writing surface of the blackboard.

Description

A kind of automatic dust removing blackboard that can stored contents

The utility model relates to a kind of driven blackboard.

Existing driven blackboard occurs on the market before the utility model is made.This driven blackboard space of a whole page laterally rotates.Its structure comprises writes cloth, cylinder and motor, hairbrush etc.Its shortcoming is: the content on the blackboard can not store, and so the student can not return the content of teaching after class.

The purpose of this utility model provides a kind of automatic dust removing blackboard that can stored contents.So the utility model not only can be wiped the letter written with chalk on the blackboard automatically, and the content of being write can be stored, and treats can return again after class the content of being said on class.

The purpose of this utility model reaches by following technical proposals:

A kind of automatic dust removing blackboard that can stored contents, it comprises writes cloth, upper and lower case, hard backup plate, Dust-proof rotary drum and motor, electromagnet, touch switch A and the B of rolling.Its structural feature is: establish one group of motor-driven upper and lower cylinder in the blackboard, write cloth and be the conveyer belt between upper and lower cylinder, write the cloth back side and be close to hard backup plate.Dust-proof rotary drum near bottom roll and with write the cloth front and be close to.An electromagnet is respectively established in below, Dust-proof rotary drum two ends, and wherein an end is provided with a motor and drives Dust-proof rotary drum.Soft-touch control A index drum motor and electromagnet, soft-touch control B index drum motor and dedusting motor.The edge of writing cloth is provided with space of a whole page anchor point, and establishes a corresponding stroke position-sensing switch in blackboard.When starting soft-touch control A, Dust-proof rotary drum is subjected to the electromagnet effect and writes cloth and separate and stop dedusting, writes cloth and from bottom to top moves under upper and lower cylinder drives, and another space of a whole page of writing cloth occurs, and the last space of a whole page is stored in the inside.When starting soft-touch control B, upper and lower cylinder and Dust-proof rotary drum are worked simultaneously, write cloth and move up, and Dust-proof rotary drum is wiped and write the content that stores the space of a whole page on the cloth.

The utility model compared with prior art owing to be provided with electromagnet below the Dust-proof rotary drum two ends, Rolling motor and electromagnet electric energy are touched switch A and are controlled, Rolling motor and dedusting motor are controlled by soft-touch control B; Established on writing cloth in addition in space of a whole page anchor point and the blackboard, therefore corresponding stroke position-sensing switch the utlity model has the content that the space of a whole page is write in 100% storage, and can automatic blackboard cleaning, writes the space of a whole page back that puts in place and stops the characteristics that need not hand-guided automatically.

The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.

Fig. 1 is the utility model embodiment Facad structure schematic diagram.

Referring to Fig. 1.The utility model discloses a kind of automatic dust removing blackboard that can stored contents.It comprises writes cloth (1), last cylinder (15), bottom roll (3), Dust-proof rotary drum (4), Rolling motor (10), dedusting motor (8) and electromagnet (7).Its structural feature is: establish one group of last cylinder (15), bottom roll (3) that is driven by Rolling motor (10) in the blackboard frame (16).Bearing holder (housing, cover) (13) is established at upper and lower cylinder two ends respectively, bottom roll (3) one ends are established Rolling motor (10).Write cylinder (15), bottom roll (3) in cloth (1) connection.Establish between last cylinder (15), the bottom roll (3) area with write the suitable hard backup plate (12) of space of a whole page area and with write cloth (1) write the space of a whole page back side.Write the edge of cloth (1) and establish space of a whole page anchor point (11), and corresponding positions installs stroke position-sensing switch (20) in blackboard.Dedusting motor (8) drives Dust-proof rotary drum (4), and Dust-proof rotary drum (4) two ends are provided with the capable groove of Dust-proof rotary drum (6), and Dust-proof rotary drum (4) one ends are connected with dedusting bearing holder (housing, cover) (14), and an end is connected with dedusting motor (8).Respectively establish an electromagnet (7) at dedusting motor (8) and dedusting bearing holder (housing, cover) (14) bottom, respectively establish an extension spring (9) at an upper portion thereof.At the blackboard bottommost one dust receiving groove (5) is set.The following lid of blackboard (2) flexibly connects and can open with blackboard, takes out dedusting groove (5).Establish soft-touch control A, soft-touch control B (not drawing among the figure) on the blackboard frame.Soft-touch control A index drum motor (10) and electromagnet (7), soft-touch control B index drum motor (10) and dedusting motor (8).

Be described in detail operation principle of the present utility model below by embodiment.

In conjunction with Fig. 1.When starting soft-touch control A, Rolling motor (10), electromagnet (7) is worked simultaneously, Dust-proof rotary drum separates with writing, (4) under the effect of electromagnet (7), sink in the scope that the capable groove of Dust-proof rotary drum (6) is limited (1.0～2 centimeters), Rolling motor (10) drives upper and lower cylinder rotation, writes cloth and from bottom to top moves thereby make.When the space of a whole page anchor point of writing cloth (1) edge walked to stroke position-sensing switch (11), powered-down stopped to move automatically, promptly newly write the content storage and finished, and the former storage space of a whole page occurs.When starting soft-touch control B, dedusting motor (8) advances work together with Rolling motor (10), writes cloth (1) and from bottom to top moves, and Dust-proof rotary drum (4) is wiped the content of original storage.Chalk dust enters to be wiped in the dirt groove (5).

Claims

One kind can stored contents automatic dust removing blackboard comprise, write cloth (1), go up cylinder (15), bottom roll (3), Dust-proof rotary drum (4) and electromagnet (7), it is held to levy and is: cylinder (15) Rolling motor (10) drives in, bottom roll (3) thus rotate drive and write cloth (1) and move up.Dedusting motor (8) drives Dust-proof rotary drum (4) and rotates.
2. a kind of automatic dust removing blackboard that can stored contents according to claim 1, it is characterized in that: Dust-proof rotary drum (4) one ends are connected with dedusting axle sleeve (14), the other end is connected with dedusting motor (8), dedusting bearing holder (housing, cover) (14) is respectively established an electromagnet (7) with the bottom of dedusting motor (8), and an extension spring (9) is respectively established on its top.Dust-proof rotary drum (4) moves and writes cloth (1) clutch upper and lower in the scope that the capable groove of Dust-proof rotary drum (6) is limited under the effect of electromagnet (7) extension spring (9).
3. a kind of automatic dust removing blackboard that can stored contents according to claim 1 and 2 is characterized in that: be provided with at the edge of writing cloth (1) and write space of a whole page anchor point (11), and the relevant position is provided with stroke position-sensing switch (20) in blackboard.
4. a kind of automatic dust removing blackboard that can stored contents according to claim 1 and 2, it is characterized in that: electromagnet (7), Rolling motor (10) are controlled by a soft-touch control A, and (not drawing among the figure) Rolling motor (10) is controlled (not drawing among the figure) with dedusting motor (8) by another soft-touch control B.