Foot-operated blackboard wiper

Abstract

The invention discloses a pedal type blackboard eraser cleaning device, and belongs to the technical field of cleaning devices of blackboard erasers. The pedal type blackboard eraser cleaning device comprises a rack, a small belt wheel shaft, a large belt wheel shaft and a pedal shaft are arranged on the rack and are parallel to each other. A small belt wheel and a triangular cam are fixed to the small belt wheel shaft. A large belt wheel is mounted on the large belt wheel shaft. The large belt wheel is connected with the small belt wheel through a conveying belt. A pedal is fixed to one end of the pedal shaft, and a two-connecting-rod mechanism is fixed to the middle of the pedal shaft. One end of the two-connecting-rod mechanism is fixed to the pedal shaft, and the other end of the two-connecting-rod mechanism is hinged to the end face of the large belt wheel. A clamping mechanism and a beating rod of a blackboard eraser are arranged on the rack. The middle portion of the beating rod is hinged to the rack, one end of the beating rod is close to the triangular cam, and the other end of the beating rod is close to the surface of the blackboard eraser. A reset spring is fixed to the end, close to the blackboard eraser, of the beating rod. One end of the reset spring is fixed to the rack. The pedal type blackboard eraser cleaning device is small in size and convenient to locate, foot treading is adopted as a power source, the dust of the blackboard eraser can be cleared away fast, simply and conveniently, and the teaching effect is improved.

Description

technical field [0001] The invention relates to the technical field of blackboard eraser cleaning devices, in particular to a foot-operated blackboard eraser cleaning device. Background technique [0002] Although some advanced teaching methods (such as multimedia teaching) have been used in teaching, most schools still use traditional blackboards and chalk as the main teaching methods. Even in schools that have used advanced teaching methods, there are still many courses that cannot be separated. Blackboard and chalk. However, after the current blackboard eraser is used a few times, it is covered with chalk powder, and the effect of wiping the blackboard becomes very poor if you continue to use it, which affects the teaching effect. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a foot-operated blackboard eraser cleaning device capable of quickly cleaning blackboard eraser dust in a classroom. [0004] T...

AI Technical Summary

Problems solved by technology

[0002] Although some advanced teaching methods (such as multimedia teaching) have been used in teaching, most schools still use traditional blackboards and chalk as the main teaching methods. Even in schools that have used advanced teaching methods, there are still many courses that cannot be separated. blackboard and chalk

However, after a few times of using the current blackboard eraser, it is covered with chalk powder, and the effect of wiping the blackboard becomes very poor if you continue to use it, which affects the teaching effect

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