CN2095776U

CN2095776U - Magnetic glass blackboard

Info

Publication number: CN2095776U
Application number: CN 91205485
Authority: CN
Inventors: 王玉茹
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-09
Filing date: 1991-04-09
Publication date: 1992-02-12

Abstract

The utility model relates to a magnetic glass blackboard which is suitable for places where often use hanging charts to teach. The magnetic glass blackboard is a teaching aid for universities, middle schools and primary schools. The back side of a common glass blackboard is provided with a magnetic layer, the periphery of the blackboard is inlaid with wooden frames, and the frames are fixed with two hooks with proper strength for fixing a chart reel. An iron sheet is arranged above the frames for sucking large hanging charts. With the magnetic glass blackboard, the fatigue of carrying a small blackboard to take a lesson is relieved, the time for sticking, changing and drawing charts in class is reduced, and the teaching efficiency in class is enhanced.

Description

Magnetic glass blackboard

The utility model relates to a kind of teaching aid, is specially adapted to the teaching aid that often uses wall chart to impart knowledge to students, and large, medium and small all is suitable for.

Existing Glass blackboard mainly is to be made of glass plate, wooden frame.During teaching on blackboard writing words and picture picture, can only be sticking when needing with paste or adhesive tape with wall chart, or with drawing pin by on wooden frame, cumbersome, the teacher is often carrying small blackboard on class, i.e. fatigue bothers again, and fragile drawing, take the too much classroom instruction time again, influence efficiency of teaching.

The purpose of this utility model is to provide a kind of magnetic glass blackboard, reduces teachers work intensity, reduces the non-cutting time that pinup picture changes figure and classroom picture, it is interesting to improve teaching, inhales and pastes some little marking patterns, can move at any time, do not damage big figure, improve classroom teaching efficient.

Fig. 1 is the front elevational schematic of the utility model structure.

Fig. 2 is that schematic diagram is looked on the right side of the utility model structure.

Below in conjunction with accompanying drawing structure of the present utility model and embodiment are further described.

One deck sheet iron (6) or iron wire gauze are set in the back of simple glass blackboard (4) or on presspaper, are coated with gluing, iron powder evenly is sprinkling upon on the glue-line of cardboard, be arranged at the back of Glass blackboard again, tumble in wooden frame (3) all around, on wooden frame, fix two hooks (2) with suitable intensity with wood screw, use with fixing painted scroll, in the time of on a class, will or being several times as much as two width of cloth pictures with two width of cloth, two width of cloth picture that is drawn on the drawing can be dried in the air on painted scroll, painted scroll is positioned on two hooks, said front one width of cloth picture, painted scroll is taken off 180 ° of commentaries on classics, be positioned over again on two hooks, former that width of cloth that is in the back is drawn and just is presented at the moment, so promptly save time, convenient again, an iron sheet (1) is set above wooden frame pastes big wall chart usefulness for inhaling, during use, on big wall chart, required small-sized sign or figure can be set, inhale on Glass blackboard with neodymium iron boron or little magnetic patch (5) with certain magnetic field intensity, can be with using with plucking, also removable, increase the interest of teaching and make student's spirit be easy to concentrate, available these the little magnetic patch (5) of little figure are inhaled on any position of Glass blackboard or big figure, say for the teacher and use class hour, in Sveerz Deluxe, when the magnetic glass blackboard is installed, can coat some groups of staff lattice with brightly painted paint, be coated with again with the black or green dark color that waits and paint at the back side of simple glass plate, saying only needs to draw the various notes that will say again on existing staff lattice class hour, has so just saved the time and the trouble of drawing the staff lattice.

The employing magnetic glass blackboard has the following advantages:

1, fixedly wall chart is convenient, saves time, laborsaving, need not carry small blackboard on class, reduces teachers work intensity, strengthen teaching interest, be convenient to student's energy and concentrate.

2, implement simply to compare with existing Glass blackboard, cost increases few, and function has increased, and has improved teaching efficiency.

3, be convenient to the transformation of old Glass blackboard, so bigger popularizing value is arranged.

Claims

1, a kind of magnetic glass blackboard, form by Glass blackboard, wooden frame, it is characterized in that, be provided with sheet iron (6) in the back of Glass blackboard (4), on wooden frame (3), fix two hooks (2) with suitable intensity with wood screw, in the top of wooden frame (3) sheet iron (1) is set, can will schemes to inhale with 1～4 neodymium iron boron or the little magnetic patch (5) with certain magnetism intensity during use and be affixed on the Glass blackboard.

2, by the said magnetic glass blackboard of claim 1, it is characterized in that, replace sheet iron (6) with iron wire gauze.

3, by claim 1 or 2 said magnetic glass blackboards, it is characterized in that, replace sheet iron (6) with the offset plate on the gelatinous layer that behind the gluing on the presspaper iron powder evenly is sprinkling upon cardboard.