78results about How to "Improve the teaching environment" patented technology

The invention discloses a novel lift type blackboard capable of changing front and back positions and quickly wiping off dust, which consists of two blackboards, flexible racks, fixed supporting frames, one-way gear mechanisms, a front and back position changing device and a board wiper device, wherein the front sides of the left and the right of the blackboards are provided with the flexible racks, the two side faces of the left and the right of the blackboards are provided with common racks, the fixed supporting frames are provided with the one-way gear mechanisms, and gears and tensioning wheels are arranged between the supporting frames in a crossing manner. The novel blackboard is mainly used for being cooperated with the teaching activities of a teacher, front and back position changing and lift movement of the blackboards are realized, the function of quickly and automatically wiping off dust during lifting is realized, the time of wiping the whole blackboard is saved, the teaching efficiency of the teacher is improved, and chalk dust generated in the wiping process is distributed between the two blackboards without flying in a classroom, so that chronic damage of the chalk dust to the teacher and students is reduced, the teaching environment is improved, and the teaching quality is enhanced.

The invention relates to a rotation type automatic erasure blackboard based on a high temperature vanishing pen. The rotation type automatic erasure blackboard based on the high temperature vanishing pen comprises a control motor, a rotation device and a heating device, wherein the rotation device comprises an aluminum frame, an upper roller located at the top of the aluminum frame, a lower roller located at the bottom of the aluminum frame and an artificial leather arranged between the upper roller and the lower roller, wherein a liner plate is arranged on a position behind the artificial leather, 3mm away from the artificial leather, the upper roller and the lower roller are longitudinally symmetrically arranged, the heating device comprises two V-shaped frames which are horizontally symmetrically arranged, and a heating rod and a press roller which are arranged between the two V-shaped frames, the V-shaped frames are arranged above the lower roller, one end of the artificial leather is connected with the upper roller, and the other end of the artificial leather is connected with the lower roller after respectively bypasses the hearing rod and the press roller. The rotation type automatic erasure blackboard based on the high temperature vanishing pen is compact in structure and high in erasure efficiency, improves teaching environments of teachers and students, and difficultly reflects light, and furthermore the artificial leather used on the rotation type automatic erasure blackboard based on the high temperature vanishing pen has the advantages of resisting abrasion, and being fadeless, good in water repellency, recyclable and the like.

The invention discloses a blackboard comprising a framework and two blackboard sets. The framework comprises a first frame, a second frame, a third frame and a fourth frame which are sequentially arranged; the first frame and the third frame are oppositely arranged and both vertically arranged; the second frame and the fourth frame are oppositely arranged, the second frame is arranged above the fourth frame, and the second frame and the fourth frame are horizontally arranged; the two blackboard sets are distributed in the length direction of the second frame and each comprise a blackboard body, a supporting rod and a driving mechanism; the supporting rods are parallel to the first frame; the first end of each supporting rod is rotationally connected with the second frame; the second end of each supporting rod is rotationally connected with the fourth frame; the blackboard bodies are installed on the supporting rods; and the driving mechanisms are used for driving the blackboard bodies to rotate with the supporting rods as centers. According to the blackboard, the positions of the blackboard bodies can be effectively adjusted, and light reflecting interference is avoided.