Classroom blackboard convenient to move and position

Abstract

The invention discloses a classroom blackboard convenient to move and position. A display screen is placed in the middle of a frame; a pathway is placed on the lower side of the frame; a left writingboard is placed at the left part of the frame; a right writing board is placed at the right part of the frame; right pulleys are installed at the bottom of the right writing board; the right pulleys are installed at the right part of the pathway; a right tension spring is placed below the right part of the pathway; one end of the right tension spring is fixed to the right end of the pathway; a right magnet is fixed to the other end of the right tension spring; the right magnet is fixedly connected to the lower left corner of the right writing board via a right connection block; left pulleys are installed at the bottom of the left writing board; the left pulleys are installed at the left part of the pathway; a left tension spring is placed below the left part of the pathway; one end of theleft tension spring is fixed to the left end of the pathway; a left magnet is fixed to the other end of the left tension spring; and the left magnet is fixedly connected with the lower right corner ofthe left writing board via a left connection block. When in use, the left and the right writing boards can be attracted and fixed via the magnets as long as force is applied, and when being separated, the two magnets can be separated as long as the force is applied, the writing boards can be pulled back to original positions by the tension springs, and thus the writing boards can be quickly returned.

Description

technical field [0001] The present invention relates to an educational facility, in particular to a convenient movement and positioning that can fix the left and right writing boards with magnets, pull back the writing boards with tension springs when they are disassembled, and achieve quick reset. blackboard for classrooms. Background technique [0002] The movable blackboard installed in the classroom is often pushed out of position when used. If the force is too large, it will bounce back. If the force is too small, it cannot be pushed out of position. It needs to be pushed a second time, which is very troublesome. If the two blackboards cannot be pushed in place, the display screen behind the middle will be exposed, which is not only ugly, but also affects the effect of students viewing the blackboard. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a convenient way to fix the left an...

AI Technical Summary

Problems solved by technology

[0002] The movable blackboard installed in the classroom is often pushed out of position when used. If the force is too large, it will bounce back. If the force is too small, it will not be pushed out of position. It needs to be pushed a second time, which is very troublesome.

If the two blackboards cannot be pushed in place, the display screen behind the middle will be exposed, which is not only ugly, but also affects the effect of students viewing the blackboard

Images