Mobile seamless blackboard

Abstract

The invention discloses a mobile seamless blackboard which comprises an outer frame, a slide carriage assembly, an upper push block assembly, a lower push block assembly, a perpendicular moving plate assembly, a middle wheel, a driving wheel, a motor, a transmission belt and a supporting spring, wherein an inner frame is arranged inside the outer frame; an upper sliding chute is formed inside an upper border of the outer frame; a lower sliding chute is formed inside a lower border of the outer frame; check convex strips are arranged on the upper and lower surfaces of the upper sliding chute and the lower sliding chute; middle supporting rods are arranged on the side walls of the left end of the upper border and the lower border; main supporting rods are arranged on the side walls of the right ends of the upper border and the lower border; inner supporting blocks and outer supporting blocks are arranged at the left half parts of the lower border plate of the lower border and the upper border plate of the upper border; and supporting rods are connected between the inner supporting blocks and the outer supporting blocks. According to the mobile seamless blackboard, a juncture between two blackboards can be reduced, so that the blackboard looks more beautiful and harmonic, and chalk dust can be prevented from falling into the inner frame; and the mobile seamless blackboard is long in service life, simple in structure and convenient to use.

Description

【Technical field】 [0001] The invention relates to the technical field of blackboards, in particular to the technical field of seamless blackboards. 【Background technique】 [0002] Now both schools and large enterprises need to use blackboards for explanations, etc., which makes blackboards widely used. Now there are some multiple blackboards in schools. Most of them are composed of two pieces. After the teacher writes the following part, then you can The lower blackboard and the upper blackboard are exchanged through the slides on the left and right sides, but after the movement is completed, the front plane between the two blackboards is not even, and chalk dust is easy to fall into the gap, which shortens the service life of the blackboard and affects The beauty of writing makes the audience feel a strong sense of division; in view of such defects, it is necessary to improve the existing multiple blackboards. 【Content of invention】 [0003] The purpose of the present in...

AI Technical Summary

Problems solved by technology

[0002] Now both schools and large enterprises need to use blackboards for explanations, etc., which makes blackboards widely used. Now there are some multiple blackboards in schools. Most of them are composed of two pieces. After the teacher writes the following part, then you can The lower blackboard and the upper blackboard are exchanged through the slides on the left and right sides, but after the movement is completed, the front plane between the two blackboards is not even, and chalk dust is easy to fall into the gap, which shortens the service life of the blackboard and affects The beauty of writing makes the audience feel a strong sense of division; in view of such defects, it is necessary to improve the existing multiple blackboards

Images