Dust-free environment-friendly board eraser

Abstract

The invention discloses a dust-free environment-friendly board eraser which comprises a cleaning module, an atomizing and dust removing module and a dust collecting module. The atomizing and dust removing module comprises a base board, a first annular body, a second annular body, a third annular body and a flaky ring, wherein an annular groove is defined by the lower surface of the base board, the inner wall face of the second annular body, the outer wall face of the third annular body and the upper surface of the flaky ring, and a round pipeline is arranged on the inner wall face of the first annular body and provided with at least one atomizing nozzle. The atomizing and dust removing module further comprises a suction fan and a fan support used for fixing the suction fan. The annular groove is divided into a first region and a second region through two sealing partition plates, wherein the first region is used for storing water, the second region is used for installation of a battery module, a water pump is installed in the first region, the water pump and the suction fan are electrically connected with the battery module, and the water pump is connected with the round pipeline through a water spraying pipe so as to supply water in the first region to the atomizing nozzles. Therefore, mist is sprayed into the first annular body to form an atomizing channel.

Description

technical field [0001] The invention belongs to the technical field of panel cleaning devices, and in particular relates to a blackboard eraser. Background technique [0002] As we all know, the main component of chalk is calcium sulfate. During the process of wiping the blackboard, chalk dust is flying around. The dust with small particles (10-20 μm in diameter) can be inhaled through the nose and adhere to the small airways and alveoli of the mucous membrane. Seriously endanger the health of the person who wipes the blackboard, and also endanger the health of the people around. [0003] In order to alleviate or avoid the harm caused by chalk dust to people, all walks of life have developed a series of products such as dust-free chalk, micro-dust chalk, new blackboards, and electric blackboard erasers. [0004] Such as the blackboard eraser provided by Chinese patent applications 200810226800.X and 201210286967.1, which can realize dustproof function, in order to realize d...

AI Technical Summary

Problems solved by technology

But there are following problems in these two patented technologies: 1, dust gathers on the surface of the wiping cloth and is difficult to remove, and can only realize effective removal of chalk dust on the wiping cloth by frequently changing and washing the wiping cloth; 2, wipe the blackboard with a sponge soaked in water 3. When wiping the blackboard, it is necessary to use external force to squeeze the sponge to release water. When the external force is not strong enough , it will cause the water in the sponge to not be fully utilized and remain in the sponge; 4. Since the water stored in the sponge is relatively limited, it is necessary to add water frequently to realize the normal use of the blackboard eraser.

However, this type of patented technology also has the following problems or deficiencies: 1. Because the dust particles are small, they will be suspended in the air and flow together with the air, so the dust cannot be isolated in the dust holding room by using the baffle, but will flow to the exhaust air 2. Due to the small dust particles, even if the air outlet is equipped with a detachable filter, part of the dust can diffuse into the air through the filter; 3. After cleaning, the eraser can only be kept in an upright position. If it is placed flat, the dust sucked into the eraser will flow out through the suction hole in the middle of the bottom surface of the eraser body; 4. Due to its structural limitation, the eraser can only be used to clean the vertical panel, and its application range is limited; 5. Due to the small size of the dust outlet and the location below the dust, even if the dust accumulates in the containing room, it is not suitable to be discharged from the dust outlet

[0006] In summary, the prior art cannot well solve the problem of dust pollution in the process of wiping the blackboard, and it is urgent to provide a blackboard eraser with better dust-proof effect.

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