CN2380406Y - Remote-controlled electric blackboard eraser - Google Patents
Remote-controlled electric blackboard eraser Download PDFInfo
- Publication number
- CN2380406Y CN2380406Y CN 99215821 CN99215821U CN2380406Y CN 2380406 Y CN2380406 Y CN 2380406Y CN 99215821 CN99215821 CN 99215821 CN 99215821 U CN99215821 U CN 99215821U CN 2380406 Y CN2380406 Y CN 2380406Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- pulley
- underbeam
- hairbrush
- housed
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a teaching aid which is arranged on a blackboard, and the primary function of the aid is to replace teachers to erase large areas of chalk characters on the blackboard. An upper beam and a lower beam are arranged on the upper and lower sides of the blackboard respectively; a linear motor and the guide rod are arranged on the inner side of the lower beam; a long hair brush, a pulley frame and a pulley box are arranged between the upper beam and the lower beam. The linear motor carries out reciprocating movements in the slide bar under the control of a remote controller, so as to drive the pulley box and the brush to move a plurality of times on the blackboard; all the chalk character on the blackboard can be erased within a plurality of seconds.
Description
The utility model relates to a kind of teaching aid that can be used for the self-purging blackboard of all kinds of places to operate schools.
The teacher after writing letter written with chalk on the blackboard, is by manual letter written with chalk to be wiped on class at present.Therefore the teacher often is subjected to the hardship of dust, in order to improve the teaching job condition, has some to improve on teaching aids such as blackboard eraser, as the blackboard eraser of band dust catcher etc.But these all fundamentally do not exempt the unhygienic manual labor that erases the board.
The purpose of this utility model is in order to improve teacher's condition of work, to avoid the hardship of dust, need not manually erase the board, a cover remote control electric blackboard clarifier being provided.
The technical solution of the utility model realizes as follows: aluminium alloy is housed above blackboard puts the beams in place, the aluminium alloy underbeam is equipped with in the blackboard below, underbeam is made up of A beam and B beam, in the inboard of underbeam linear electric motors and guide rod thereof are housed, between upper beam and underbeam rectangular hairbrush is housed, in rectangular hairbrush upper end pulley yoke is housed, the pulley box is equipped with in the lower end, rectangular like this hairbrush can be on blackboard surface move left and right, linear electric motors are by the moving rectangular hairbrush of pulley tape.
6 pulleys are housed, 4 vertical blackboards of its rotating shaft of pulley up and down, middle 2 its rotating shaft vertical level in the pulley box.
Characteristics of the present utility model be the blackboard clarifier by linear electric motors as power, the teacher stands in from 5.6 meters of blackboard, pressing the remote controller control turns round, the automatic reciprocating several of hairbrush in the several seconds, is just all wiped the letter written with chalk on the blackboard, the time-saving and efficiency, help improving teacher's efficient of giving a lesson, avoid the hardship of dust, improve the teaching job condition.
Description of drawings: Fig. 1 is front view of the present utility model and cutaway view.The installation site and the modular construction relation of having showed remote control electric blackboard clarifier.
Fig. 2 is the topology view of rectangular hairbrush and the pulley box that is attached thereto in the driven blackboard clarifier, and with the mated condition of underbeam.
Numbering is as follows among the figure: blackboard 1, rectangular hairbrush 2, pulley yoke 3, pulley box 4, upper beam 5, A beam 6, B beam 7, motor guide rod 8, linear electric motors 9, pulley 10, pulley 11, pressure pulley 12, top sheave 13, boom support 14, remote controller (15).
Below in conjunction with accompanying drawing, provide embodiment of the present utility model, in blackboard (1) top aluminium alloy upper beam (5) is housed, have pulley groove on it, the aluminium alloy underbeam be housed below blackboard, the top be A beam (6), have track and pulley groove, following is B beam (7), has track.Put the beams in place and underbeam to support hairbrush as track and support reciprocating.
In rectangular hairbrush (2) upper end, pulley yoke (3) is housed, top sheave (13) is housed on pulley yoke (3).Pulley box (4) is equipped with in lower end in rectangular hairbrush (2), and 6 pulleys are housed altogether, and wherein roll on the track of A beam (6) and B beam (7) in 4 pulleys (10), the vertical blackboard of (11) its rotating shaft plane.Rise to hold and hang down and guide effect.Its rotating shaft vertical level of 2 pressure wheel (12) moves in the pulley groove of A beam in addition, and its effect is that hairbrush is pressed to blackboard.
Linear electric motors (9) and guide rod (8) thereof are equipped with in underbeam inboard below blackboard, and guide rod (8) is parallel with underbeam.Linear electric motors (9) drive and move back and forth about pulley box (4) is done, and hairbrush is gone up at blackboard (1) moved, and wipe letter written with chalk.
The linear electric motors of this clarifier (9) have the reciprocating motion that can regulate the timed unit control motor of running route length by the power supply of 220V power supply.And control the start-stop of motor by Digiplex (15).As long as pin the transmitter knob, motor promptly moves.Automatic reciprocating operation in the distance of setting, after loosing one's grip, hairbrush is parked in a side of blackboard automatically.
Claims (2)
1. remote control electric blackboard clarifier, comprise rectangular hairbrush (2), linear electric motors (9) and guide rod (8) thereof, remote controller (15), it is characterized in that: also comprise upper beam (5), A beam (6), B beam (7), pulley yoke (3), pulley box (4), bottom and upper segment at blackboard is equipped with upper beam (5) and underbeam, underbeam is made up of A beam (6) and B beam (7), and linear electric motors (9) and guide rod (8) thereof are housed in the inboard of underbeam, in rectangular hairbrush (2) upper end pulley yoke (3) is housed, pulley box (4) is equipped with in the lower end, and linear electric motors (9) drive rectangular hairbrush (2) by pulley box (4).
2. remote control electric blackboard clarifier as claimed in claim 1 is characterized in that 6 pulleys are arranged in the pulley box (4), 4 vertical blackboards of its rotating shaft of pulley up and down, middle 2 its rotating shaft vertical level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99215821 CN2380406Y (en) | 1999-06-28 | 1999-06-28 | Remote-controlled electric blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99215821 CN2380406Y (en) | 1999-06-28 | 1999-06-28 | Remote-controlled electric blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2380406Y true CN2380406Y (en) | 2000-05-31 |
Family
ID=34007653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99215821 Expired - Fee Related CN2380406Y (en) | 1999-06-28 | 1999-06-28 | Remote-controlled electric blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2380406Y (en) |
-
1999
- 1999-06-28 CN CN 99215821 patent/CN2380406Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |