Multifunctional dustproof blackboard eraser

A blackboard eraser and multi-functional technology, applied in the field of blackboard erasers, can solve the problems of arm soreness, influence, and uncleanness, and achieve the effects of solving excessive dust, convenient use and simple structure

Inactive Publication Date: 2016-04-06
翟登干
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the teaching process, in order to facilitate students’ memory and understanding, blackboards are used to write on the blackboard. Most of the writing on the blackboard is done with chalk. Chalk characters will generate dust when they are erased with a blackboard eraser. Human body will have a very adverse effect on human health after inhalation
Moreover, when wiping the blackboard, sometimes the students may not be able to wipe it clean because of their weak strength, and the students will feel sore arms after wiping the blackboard

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multifunctional dustproof blackboard eraser
  • Multifunctional dustproof blackboard eraser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment comprises blackboard eraser main body 1, described blackboard eraser main body 1 lower end is open, and upper end is provided with a dust cover 9 that can be opened and closed; Described blackboard eraser main body 1 top is provided with cylindrical dust box 2, and this dust box 2 A circle of equally spaced dust holes 12 is provided on the outer wall of the upper part; a power chamber 3 is connected to the lower end of the dust box 2, a motor 4 is fixed on the top of the power chamber 3, a power supply 5 is fixed on the inner wall of the power chamber 3, and a control switch 8 is provided on the outer wall; The motor 4, the power supply 5, and the control switch 8 are connected in series through wires; the rotating shaft of the motor 4 is connected to the fan blade center 11; the fan blade center 11 is connected to three fan blades 6, and each fan blade 6 is provided with a br...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a blackboard eraser, in particular to a multifunctional dustproof blackboard eraser. The multifunctional dustproof blackboard eraser comprises a blackboard eraser main body. The multifunctional dustproof blackboard eraser is characterized in that the lower end of the blackboard eraser main body is provided with an opening, and the upper end of the blackboard eraser main body is provided with a dust cover capable of being opened and closed; a cylindrical dust box is arranged in the top end of the blackboard eraser main body, and the outer wall of the upper portion of the dust box is provided with a circle of equally-spaced dust holes; the lower end of the dust box is connected with a power chamber; a motor is fixed to the top end of the power chamber; a power source is fixed to the inner wall of the power chamber; the outer wall of the power chamber is provided with a control switch; the motor, the power source and the control switch are connected in series through a wire; a motor rotary shaft is connected with a fan blade center which is connected with three fan blades; each fan blade is provided with fur brushes; an annular dust channel is formed by the fan blades, the power chamber, the dust box and the outer wall of the blackboard eraser main body and communicated with the dust box through the dust holes.

Description

(1) Technical field [0001] The invention relates to a blackboard eraser, in particular to a dust-proof multifunctional blackboard eraser. (2) Background technology [0002] In the teaching process, in order to facilitate students’ memory and understanding, blackboards are used to write on the blackboard. Most of the writing on the blackboard is with chalk. Chalk characters will generate dust when they are erased with a blackboard eraser. The human body will have a very adverse effect on the health of the human body after inhalation. Moreover, when wiping the blackboard, sometimes students may not be able to wipe it clean because of their weak strength, and students will feel sore arms after wiping the blackboard. (3) Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a dust-proof multifunctional blackboard eraser with simple structure and convenient use. [0004] The present invention is achieved t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
Inventor 翟登乾
Owner 翟登干
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap