CN104842695A

CN104842695A - Health chalkboard eraser

Info

Publication number: CN104842695A
Application number: CN201510261219.1A
Authority: CN
Inventors: 朱贤华; 谭松林; 段浩; 胥瑾; 李莹莹; 张钦; 朱周雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-15
Filing date: 2015-05-15
Publication date: 2015-08-19

Abstract

The invention provides a health chalkboard eraser. A power supply comprises a rechargeable battery 2 and a miniature DC motor 12. A transmission mechanism is composed of a coupling 10, a shaft 11 and bevel gears 9 and 8. A dust suction mechanism is composed of a propeller 4, a shaft 5, partitions 1, 3 and 21, a dust suction pipe 6 and a dust entry door 18. A dust collection mechanism comprises a partition 19, a housing 13 and a dust exit door 14. A wiping mechanism comprises housings 7 and 18, a bottom board 16 and a brush 15. The health chalkboard eraser is simple in structure, convenient to use, capable of reliably operating with less labor consumed and is capable of sucking more than 99% of chalk dust, thus environmental pollution is effectively avoided and health of teachers and students is ensured.

Description

Health blackboard eraser

Technical field

The invention belongs to blackboard eraser technical field, relate to a kind of health blackboard eraser.

Background technology

Teacher is engaged in the work of most weaker player, but casts greatest dream! The ethics of the teaching profession table world, wish educates an outstanding person, and the feelings of Here it is the people's teacher, integrate teacher that is ordinary and greatness, with the spirit of candle, the behavior of silkworm in spring, the attitude of helper, the character of ox, the technical ability of honeybee goes to cultivate, go to burn, go to weave silk, go to build bridge, go ploughing and weeding, keep in mind student constantly, everywhere in order to student, lifelong chalk dust dye white hair, wholeheartedly serves one's country with unreserved loyalty and educate peaches and plums.

For hundreds of years, school imparting knowledge and educating people, in the activity that conveys knowledge, mainly using blackboard, chalk as educational aid, the easy graying in plate face is had in using, reflective, write effort, wipe the shortcomings such as unclean, and a large amount of dust produced, the grievous injury physical and mental health of teacher, breathing problem, PUD D, cancer illness rate rise, increasing of teaching profession's disease, the infringement of instruments used for education, is just declaring publicly a facts of life.

According to country about report statistics display in 1993. China teacher, every year because of the chalk dust about 200 grams/people sucked that attends class, suffers from the about 20%/year of PUD D, cancer.

Summary of the invention

For overcoming the deficiency of prior art, the invention provides a kind of structure simple, easy to use, reliable operation, laborsaving, can the powder dust of inspiration more than 99%, efficiently avoid environmental pollution, thus serve the effect ensureing teachers and students' health.

Health blackboard eraser is by power source, transmission mechanism, dust collection mechanism, dust-collecting mechanism, erasing mechanism.

Power source by rushing battery 2, miniature cocurrent electromotor 12 forms, transmission mechanism is made up of shaft coupling 10, axle 11, bevel gear 9,8, dust collection mechanism by propeller 4, axle 5, dividing plate 1,3,21,22, sweep-up pipe 6 and dust enter and 18 to form, erasing mechanism by housing 7,13, base plate 16 and brush 15 form, dust-collecting mechanism is gone out by dividing plate 19, housing 13 and dust and 14 to be formed.

Accompanying drawing explanation

Fig. 1 is the front view of health blackboard eraser.

Fig. 2 is the A-A view that health blackboard eraser is wiped.

Fig. 3 is the right view of health blackboard eraser.

Detailed description of the invention

The power source of health blackboard eraser by rushing battery 2, miniature cocurrent electromotor 12 forms, health blackboard eraser transmission mechanism is made up of shaft coupling 10, axle 11, bevel gear 9,8, the dust collection mechanism of health blackboard eraser by propeller 4, axle 5, dividing plate 1,3,21,22, sweep-up pipe 6 and dust enter and 18 to form, health blackboard eraser erasing mechanism by housing curve 7,13, base plate 16 and hairbrush 15 form, dust-collecting mechanism is gone out by dividing plate 19, dust and 14 is formed dust compartment 23.

The axle of miniature cocurrent electromotor 12 is coaxial with gear 9, and be connected with shaft coupling, gear 8 is meshed with gear 9, and gear 8 is coaxially connected with propeller 4, and sweep-up pipe 6 is entered with dust and 18 to be connected above screw, and during dust suction, dust is entered and 18 to be opened, and closes at ordinary times.

Rush battery 2 to be connected with miniature cocurrent electromotor 12.

Dividing plate 1,3,21,22 is connected, and forms splayed.

Repeatedly, brush 15 adopts compressible substance to make, and base plate has several small sircle holes for base plate 16 and brush 15 phase, and housing forms egg type curve by 7,13 curves and forms, and adopts ABS engineering plastics to make.

Propeller 4 rotates clockwise, and is inhaled by chalk dust and is discharged in dust compartment by sweep-up pipe.

Claims

1. health blackboard eraser is by power source, transmission mechanism, dust collection mechanism, dust-collecting mechanism, erasing mechanism forms, and it is characterized in that: power source is by rushing battery (2), miniature cocurrent electromotor (12) forms, and transmission mechanism is by shaft coupling (10), axle (11), bevel gear (9), (8) forming, dust collection mechanism is by propeller (4), axle (5), dividing plate (1), (3), (21), (22), sweep-up pipe (6) and dust enter (18) formed, erasing mechanism is by housing curve (7), (13), base plate (16) and hairbrush (15) composition, dust-collecting mechanism is by dividing plate (19), dust is gone out (14), and composition dust compartment (23) forms, the axle of miniature cocurrent electromotor (12) is coaxial with gear (9), be connected with shaft coupling, gear (8) is meshed with gear (9), gear (8) is coaxially connected with propeller (4), sweep-up pipe (6) enter with dust above screw (18) be connected, during dust suction dust enter (18) open, close at ordinary times.

2. health blackboard eraser according to claim 1, it is characterized in that: base plate (16) and brush (15) are mutually repeatedly, brush (15) adopts compressible substance to make, base plate has several small sircle holes, housing forms egg type curve by (7), (13) curve and forms, and adopts ABS engineering plastics to make.

3. health blackboard eraser according to claim 1, is characterized in that: propeller (4) rotates clockwise, and chalk dust is inhaled to be displaced into dust compartment (23) by sweep-up pipe inner.

4. health blackboard eraser according to claim 1, is characterized in that: rush battery (2) and be connected with miniature cocurrent electromotor (12).

5. health blackboard eraser according to claim 1, is characterized in that: dividing plate (1), (3), (21), (22) are connected, and forms splayed.