Infiltration type dedusting and dustproof blackboard eraser
A blackboard eraser and dust-proof technology, applied in the field of blackboard erasers, can solve problems such as unsightly appearance, complex structure, obtrusiveness, etc., and achieve the effects of preventing secondary pollution, long service life and convenient use.
Inactive Publication Date: 2017-06-16
李国云
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Problems solved by technology
[0004] However, first of all, setting button-like operating parts on the back of the blackboard eraser seems very abrupt and unsightly
In addition, the operating part needs to be connected with the above-mentioned switch board, and it is inevitable to pass through the water storage chamber and punch holes on the side wall of the water storage chamber, which will adversely affect the sealing effect of the water storage chamber
Moreover, since the switch is realized by using the operating part, the structure is relatively complicated.
Method used
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[0014] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.
[0015] Such as figure 1 As shown, the immersion-type dust-removing and dust-proof blackboard eraser disclosed by the present invention includes an erasing body 1, a housing 2, a dust collecting box 3 with an ash outlet at the bottom, a drawer-type ash-removing box 5, a water storage tank 6 and One end is connected to the capillary 7 in the water storage tank 6, the water stora...
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The immersion-type dust-removing and dust-proof blackboard eraser disclosed by the present invention comprises an erasing body, a shell, a dust collecting box with an ash outlet at the bottom, a drawer-type ash-removing box, a water storage tank, and a capillary tube connected to the water storage tank at one end. , the water storage tank is set in the housing above the ash removal box, the other end of the capillary extends into the ash removal box, the ash removal box is movably arranged in the housing through the opening at the bottom of the housing and the ash outlet is above the ash removal box, The dust collecting box is arranged in the casing and the front end of the dust collecting box is open, and the erasing body is arranged in front of the dust collecting box. The present invention has a simple and reliable structure, is easy to use, and can effectively collect chalk dust during use, thereby helping to reduce the dust generated by teaching blackboard writing activities, and at the same time facilitates quick and convenient removal of accumulated chalk dust, and prevents dust removal by using water infiltration The chalk dust in the box is raised for the second time, which is beneficial to protect the health of teachers and students.
Description
technical field [0001] The invention relates to a blackboard eraser, in particular to a soaking type dust-removing and dust-proof blackboard eraser. Background technique [0002] Chalk is a tool to spread culture, but also a drug that harms the body. How many soul engineers suffered from chronic diseases due to repeated dust pollution and inhalation of the intake pipe, and left the podium prematurely. Although the state has been using subsidies to make up for the harm of this occupational disease to teachers, it is difficult to compensate for life with money. Students sitting in the front row are also threatened by dust. From the so-called dust-free chalk, fine dust chalk to the development of new blackboards, there is a deep humanistic care and helplessness... [0003] Chinese patent document 200810226800.X discloses an environmentally friendly blackboard eraser. The blackboard eraser is formed by fastening two shells. The shell on the front side is provided with a mount...
Claims
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Login to View More IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 李国云
Owner 李国云