Efficient static raise-dust-free dust cleaning device of blackboard eraser

Abstract

The invention discloses an efficient static raise-dust-free dust cleaning device of a blackboard eraser. The efficient static raise-dust-free dust cleaning device comprises a sealing housing with a cover, a movable dedusting device and a dust storage box. A layer of metal filter screen is arranged in the movable dedusting device. A movable friction piece formed by palm fiber strands in a plurality of rows, fixing strips for fixing the palm fiber strands, sliders for connecting the fixing strips, and a movable handle connected with the sliders is arranged on the filter screen. The movable dedusting device is integrally horizontally arranged in the sealing housing. The distance between the palm fiber strands on the friction piece and the cover of housing is identical to the height of the blackboard eraser horizontally placed. As an improvement, an electrostatic dust absorption plate is obliquely arranged in the dust storage box and comprises a smooth panel, a high-voltage dust absorption plate and a sensing device, the high-voltage dust absorption plate is fixedly arranged under the panel, and the sensing device is arranged between the panel and the high-voltage dust absorption plate and is used for controlling an electrostatic high-voltage circuit. The efficient static raise-dust-free dust cleaning device has the advantage that removal rate of chalk dust can reach more than 90%, and the chalk dust is prevented from flying during dust cleaning process.

Description

technical field [0001] The invention relates to a blackboard eraser cleaning device, in particular to a blackboard eraser cleaning device with a strong dust-absorbing function. Background technique [0002] Chalk dust flying is mainly because the chalk dust adhering to the blackboard eraser cannot be effectively removed and collected, resulting in long-term repeated flying pollution. The most common way is to take a blackboard eraser and knock it hard on the wall. Through the method of vibration, part of the dust on the blackboard eraser can be removed, but the environment is polluted. At present, the known blackboard eraser cleaning devices are generally integrated with the blackboard eraser, and its structure often includes a blackboard eraser body, a dust absorption box and a blackboard eraser brush. From the perspective of structural design, the structure is relatively simple and easy to manufacture. But, from actual effect, because it has not only increased the space ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of existing blackboard eraser cleaning devices that are prone to dust and low removal rate of chalk dust, the present invention provides a high-efficiency dust-fre...

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