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Multifunctional blackboard eraser

A blackboard eraser and multi-functional technology, which can be used in blackboard or slate cleaning devices, printing, office supplies, etc., can solve the problems of lack of timing and alarm functions, and achieve the effect of facilitating time arrangement, improving teaching efficiency, and improving control

Inactive Publication Date: 2019-06-25
XIAN SINENG NETWORK SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing blackboard eraser in the prior art lacks the timing alarm function, the present invention provides a multifunctional blackboard eraser

Method used

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Embodiment Construction

[0016] In order to further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation, structural features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "front", "rear", "upper", "lower", "inner", "outer" etc. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0018] A multifunctional blackboard eraser, such as figure 1 , figure 2 , image 3 The shown incl...

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Abstract

The invention belongs to the field of daily teaching aids, and particularly relates to a multifunctional blackboard eraser. The multifunctional blackboard eraser comprises a shell and a bottom plate,wherein an opening is formed in the bottom of the shell, the opening is provided with a set of inserting grooves which are oppositely arranged, the bottom plate is inserted into the shell through theinserting grooves, a plurality of sets of parallel rolling brushes are arranged in the shell, the rolling brushes are connected with a motor through a rotating shaft, and the motor is fixedly arrangedon the inner wall of the shell; a horizontal separation plate is further arranged between the rolling brushes and the top surface of the shell, a plurality of dust through holes are formed in the horizontal partition plate, a dust suction motor is further arranged above the horizontal partition plate, the dust suction motor is positioned on the inner wall of the front end of the shell, an exhausthole is formed in the position, corresponding to the dust suction motor, of the front end of the shell, the exhaust hole is further connected with a dust collecting bin, and the dust collecting bin is in threaded connection with the shell; and a time display is further arranged on the top surface of the shell.

Description

technical field [0001] The invention belongs to the field of daily teaching aids, in particular to a multifunctional blackboard eraser. Background technique [0002] The blackboard eraser is a special tool for wiping the blackboard. It can easily wipe off the chalk on the blackboard, so that the blackboard can be reused. Schools are the place where blackboard erasers are used most. [0003] At present, when cleaning the blackboard, people mainly use blackboard erasers to erase the chalk scribbles on the blackboard. Chalk dust is easily absorbed into the body, which will damage the health; Easy to find, when you need to wipe the blackboard, you often waste a lot of time looking for the blackboard eraser; and when you are in class, it is often difficult to accurately grasp the class time, which makes teaching inconvenient; therefore, it is necessary to design an efficient computer with time display and timing alarm. Chalkboard eraser for erasing. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/00B43L21/02G04B47/00
Inventor 孙圆媛
Owner XIAN SINENG NETWORK SCI & TECH
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