CN2436324Y

CN2436324Y - Composite type blackboard

Info

Publication number: CN2436324Y
Application number: CN 00250749
Authority: CN
Inventors: 苗俊魁
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-28
Filing date: 2000-08-28
Publication date: 2001-06-27
Anticipated expiration: 2010-08-28

Abstract

The utility model relates to a composite type blackboard, which comprises a fixed blackboard and a movable blackboard. A track is arranged on the top edge and the bottom edge of the fixed blackboard respectively; a pulley is arranged between the top and bottom tracks; the pulley is provided with the top and bottom tracks via a movable pulley and a positioning wheel which are arranged on the pulley. The movable blackboard is arranged on the pulley, and the width of the movable blackboard is half as the fixed blackboard. The utility model has the advantages that blackboard wiping times of teachers in class are reduced, and the class utilization level is enhanced; the teaching effect of the teacher is raised; a brake device is also provided by the composite type blackboard, which can ensure the stability of the blackboard when writing.

Description

Compound blackboard

The utility model relates to a kind of teaching equipment, and particularly a kind of is by fixedly blackboard and a kind of compound blackboard that Reelable blackboard constituted.

The blackboard that uses in middle and primary schools generally is a kind of fixed blackboard at present, the specification of the blackboard of this pattern is generally 1.1 * 2.4 meters or 1.2 * 3.6 meters, such blackboard tends to occur the not enough problem of plate face when the teachers' instruction writing on the blackboard, therefore teacher's erasing the board frequently just, not only influence teacher's the effect of giving lessons and on the classroom, erase the board, also bring a large amount of dust pollutions, be unfavorable for the healthy of Faculty and Students.

The purpose of this utility model is exactly the shortcoming that overcomes said fixing formula blackboard, solve the defective that blackboard area that fixed blackboard brings owing to the restriction of its size can not enlarge, thereby provide a kind of compound blackboard, by setting up a Reelable blackboard to increase the usable floor area of blackboard, reach and reduce the number of times that the teacher erases the board on the classroom, improve teaching and utilize level class hour and give lessons effect, reduce the classroom dust pollution simultaneously.

The purpose of this utility model realizes by following technical proposals, compound blackboard of the present utility model comprises fixedly a blackboard and a Reelable blackboard, bottom and upper segment at blackboard is respectively arranged with a track, between last lower railway, be provided with a coaster, this coaster by movable pulley that it was provided with and locating wheel and with last lower railway phase configuration, described Reelable blackboard then is mounted on the coaster, described coaster can be along the track move left and right, and the width of Reelable blackboard is fixing half of blackboard, and the activity wheel of described coaster is to match and its locating wheel is to match with lower railway with getting on the right track.Reelable blackboard can carry out move left and right to it according to teacher's needs like this, writes in the fixed black writing on the blackboard and writes on Reelable blackboard after full again, thereby realized increasing the purpose of blackboard area, has reduced the number of times that erases the board.

On above-mentioned Reelable blackboard, also be provided with a brake apparatus so that Reelable blackboard is stable.

The utility model has the advantages that and reduced teacher's number of times that on the classroom, erases the board, improved class hour and utilized level, improved teacher's the effect of giving lessons, alleviated the pollution of classroom dust; , thereby guaranteed the continuity of giving lessons under class because but the spreadability of Reelable blackboard can need a part example of writing on the blackboard to copy, and cover under Reelable blackboard; Because Reelable blackboard has mobility, helps the student and takes notes; This compound blackboard also is provided with brake apparatus, the stability of blackboard when having guaranteed to write.

Below in conjunction with accompanying drawing compound blackboard of the present utility model is described in further detail, and the shown embodiment of accompanying drawing is not limited to the utility model, wherein:

Fig. 1 is the front view of the compound blackboard of the utility model;

Fig. 2 is the side view of Fig. 1.

Now referring to accompanying drawing, 1 is coaster among the figure, and 2 for getting on the right track, and 3 is lower railway, and 4 are fixing blackboard, and 5 is Reelable blackboard, and 6 is the fixing basic framework of blackboard, and 7 is movable pulley, and 8 is locating wheel.Compound blackboard of the present utility model comprises fixedly a blackboard 4 and a Reelable blackboard 5, be respectively arranged with a

track

2 and 3 at the fixing bottom and upper segment of blackboard 4, between last

lower railway

2 and 3, be provided with a coaster 1, this coaster 1 disposes mutually with last

lower railway

2 and 3 by movable pulley 7 and the locating wheel 8 that it was provided with, 5 of described Reelable blackboards are mounted on the coaster 1, described coaster 1 can be along

track

2 and 3 move left and right, and the width of Reelable blackboard 5 is fixing half of blackboard 4, and the movable pulley 7 of described coaster 1 is 2 to match and its locating wheel 8 is to match with lower railway 3 with getting on the right track.On Reelable blackboard 5, also be provided with brake apparatus 9, so that Reelable blackboard stability is improved.Earlier Reelable blackboard 5 is placed on the right in use, the teacher can write on the left side of fixing blackboard 4, after writing completely, or write on fixing the right of blackboard on the left side that Reelable blackboard 5 is moved on to fixing blackboard 4, writing Man Houzai writes on Reelable blackboard 4, or on Reelable blackboard 4, write earlier, write Man Houzai it is moved on to the fixedly left side of blackboard 4, write on fixing the right of blackboard 4 then, Reelable blackboard 5 can carry out move left and right to its Reelable blackboard 4 according to teacher's needs in a word.

Claims

1, a kind of compound blackboard, it is to comprise fixedly a blackboard and a Reelable blackboard for its feature, be respectively arranged with a track at the fixing bottom and upper segment of blackboard, between last lower railway, be provided with a coaster, this coaster by the movable pulley that is provided with on it and locating wheel and with last lower railway phase configuration, described Reelable blackboard then is mounted on the coaster, described coaster can be along the track move left and right, and the width of Reelable blackboard is fixing half of blackboard, and the movable pulley of described coaster is to match and its locating wheel is to match with lower railway with getting on the right track.

2, compound blackboard according to claim 1 is characterized in that also being provided with a brake apparatus on the described Reelable blackboard so that Reelable blackboard is stable.