CN2422148Y

CN2422148Y - Flexible blackboard

Info

Publication number: CN2422148Y
Application number: CN 00234641
Authority: CN
Inventors: 郑波
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-13
Filing date: 2000-05-13
Publication date: 2001-03-07
Anticipated expiration: 2010-05-13

Abstract

The utility model relates to a roller type blackboard, comprising a blackboard body which is made of windable soft material. The upper and the lower edges of the blackboard body are respectively connected with an upper reel and a lower reel. The upper and the lower reels are respectively connected with a rotating wheel on ends of the same side. A transmission rope is wound between the two rotating wheels. The blackboard body can be wound up and down by pulling the transmission rope forward and backward, so large amount of information can be written on the blackboard body, and the written content can be browsed in time. The roller type blackboard need not be cleaned in class, so the utility model is good for teachers' and students' health, and can improve the teaching environment.

Description

Flexible blackboard

The utility model relates to a kind of blackboard, particularly a kind of flexible blackboard.

Employed in the school at present generally all is that its shortcoming of fixed blackboard is: 1. the written information amount is little, need wipe the content of having write every now and then, and cause information dropout, can't look back, and searches, contrasts the content of having write; 2. need to erase the board on the classroom frequently, one loses time, and two come its dust pollution bring harm can for teachers and students' health of just giving a lesson in the classroom.

The purpose of this utility model is to overcome above-mentioned defective, it is big to design a kind of one secondary written information amount, both can repeat to show the content of having write, can reduce the number of times that erases the board again, particularly can on the classroom, not erase the board, and utilize the time after school to erase the board, thereby can prevent that chalk dust from bring a kind of flexible blackboard of harm for teachers and students' health.

Technical scheme is as follows: a kind of flexible blackboard, comprise the blackboard body, but the blackboard body is made by coiling material, the top of blackboard body and a upper winding shaft link, the bottom of blackboard body and a lower winding shaft link, respectively be associated with a runner on the same side of upper winding shaft and lower winding shaft, be surrounded with a transmission rope between two runners.

The utility model is owing to adopted such scheme, can disposablely write bulk information, the old information that can also leaf through again and write, do not need on the classroom to spend a lot of times to erase the board yet, more can not cause health hazard to teachers and students owing to dust pollution, the utility model is simple in structure, and is easy to use.

Be described further below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present utility model.

Embodiment:

A kind of flexible blackboard, but comprise a takeup type blackboard body 1 of making by soft material, the upper and lower limit of blackboard body 1 is separately fixed on upper winding shaft 2 and the lower winding shaft 3, the termination, right side of upper winding shaft 2 and lower winding shaft 3 runner 4,5 that has been fixedly connected respectively is surrounded with the transmission rope 6 of driving-belt effect together between the runner 4,5.Need only during use upper and

lower spool

2,3 is fixed on the wall in front, dais, forward and reverse pulling transmission rope 6 can make blackboard body 1 just or oppositely reel, thereby can write or browse again old content easily, because it is very long that blackboard body 1 can be done, so content written can be a lot, and do not need to erase the board on the classroom, wait until the time after school to wipe, help teachers and students' health, improve teaching environment.

Claims

1. flexible blackboard, comprise the blackboard body, it is characterized in that but the blackboard body made by coiling material, the top of blackboard body and a upper winding shaft link, the bottom of blackboard body and a lower winding shaft link, respectively be associated with a runner on the same side of upper winding shaft and lower winding shaft, be surrounded with a transmission rope between this two runner.