Portable teaching blackboard for teachers

Abstract

The invention discloses a portable teaching blackboard for teachers. The portable teaching blackboard comprises a writing board, an erasing disc, an electric storage block, a height adjustment seat, atransmission disc, a movable erasing frame, a connecting plate, a sliding erasing plate, dust collection discs, a dust storage bin, a dust filter net, a magnet block, an erasing cotton, a suction fan, a motor, a driving belt, a plug-in magnetic slot, a telescopic column, a mounting ring, a sliding groove, a locking ring and a sliding column. The portable teaching blackboard has the beneficial effects that when the portable teaching blackboard is in use, the motor drives the movable erasing frame by the driving belt to move back and forth on a writing frame so that the sliding erasing plate onthe movable erasing frame can quickly erase chalk characters on the writing board, time and labor are saved, and when the movable erasing frame moves on the writing board, falling dust can be rapidlycollected by the dust collection discs on the two sides of the sliding erasing plate, dust is sucked into the dust storage bin through the suction fan to be prevented from falling to air so as to cause environmental pollution, it is ensured that the human body does not inhale dust, using safety is ensured, the device is convenient to operate, and components are flexible in connection.

Description

technical field [0001] The invention relates to a blackboard, in particular to a portable teaching blackboard for teachers, which belongs to the technical field of teacher appliance applications. Background technique [0002] With the rapid development of people's living standards, portable teaching blackboards have become a teaching tool that teachers use more and more frequently. The portable blackboard is compact and easy to carry, which is convenient for teachers to explain learning problems to students outdoors. [0003] But the existing portable teaching blackboard for teachers still has a lot of deficiencies in use. The existing portable teaching blackboard for teachers needs the teacher to manually erase the chalk words on the blackboard. In addition to chalk writing, chalk is easy to spill into the air to pollute the environment, the human body is easy to inhale, and chalk powder is easy to cause harm to the human body. The overall use height of the blackboard is fi...

AI Technical Summary

Problems solved by technology

[0003] But the existing portable teaching blackboard for teachers still has a lot of deficiencies in use. The existing portable teaching blackboard for teachers needs the teacher to manually erase the chalk words on the blackboard. While removing chalk characters, chalk is easy to spill into the air and cause pollution to the environment. The human body is easy to inhale, and chalk powder is easy to cause harm to the human body. The overall use height of the blackboard is fixed and cannot be adjusted, and it is inconvenient to store and carry.

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