CN2889738Y

CN2889738Y - Multi-functional blackboard

Info

Publication number: CN2889738Y
Application number: CN 200620096448
Authority: CN
Inventors: 郑贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-29
Filing date: 2006-04-29
Publication date: 2007-04-18
Anticipated expiration: 2016-04-29

Abstract

A multifunctional blackboard comprises a blackboard body, and a brush assembly installed at the backside of the blackboard body and inside a dust storage box. The utility model can completely eliminate flying chalk dust phenomenon to give a good studying and teaching environment for teachers and students in class, good at the teachers' health. Meanwhile, the chalk dust can be reutilized, which meet the requirement of circular economy.

Description

Multi-functional blackboard

Technical field

The utility model relates to the teaching aid technical field, specifically a kind of multi-functional blackboard.

Background technology

Blackboard is that people are familiar with educational aid only again, blackboard writing and teaching content commonly used during teachers ' teaching, teachers and students are when the plate face of wiping clearly after writing, usually be that chalk dust flies upward, fall to being attached to teachers and students on hand, on the head, on the clothing, the student of seat at the front row get rid of breathing, prevent " eating ash ", the ground of facing blackboard is a white dirt especially.In addition, the teaching profession is many with throat, and pharyngitis and pneumonia are their common occupational diseases, because dust is many, the probability that teacher suffers from occupational disease is also very big, particularly backward areas in, the teacher of primary school, all the more so.And the dust ash is suave everywhere, can't utilize.

Summary of the invention

The purpose of this utility model is that design a kind ofly can be wiped letter written with chalk, the multi-functional blackboard that no chalk dust flies upward automatically.

The utility model multi-functional blackboard comprises: blackboard body, the blackboard body back side are equipped with brush row part, and brush row part is contained in the storage powder box.

Blackboard body comprises: inner core plates 1 outer surface is surrounded by sheet iron, can inhale subsides magnet.Tension spring 2 is equipped with at inner core plates 1 two ends, tension spring 2 supporting revolving shafts 3 two ends, and rotating shaft 3 is fixed by bracing frame 4 two ends that are contained on the inner core plates 1, and the lower end of rotating shaft 3 links to each other with one-way communication reducing motor 5, and blackboard cloth 6 is looped around in the rotating shaft 3.

Brush row part comprises: around the back side of blackboard cloth 6 brush row 7 is housed, brush row 7 usefulness eccentric crankshafts 9 link to each other, and eccentric crankshaft connects with handle.

Brush row 7 is contained in the storage powder box 8, and storage powder box bottom has outlet 10.

The one-way communication reducing motor links to each other with gauge tap, or remote control switch is continuous, and remote control switch is identical with the control circuit of control electronic toy or control TV switch.

Wipe after blackboard is write chalk dust be achieved in that blackboard write full after, as long as open gauge tap, one-way communication reducing motor 5 starts, rotating shaft 3 drives blackboard cloth 6 and rotates, shake the eccentric crankshaft 9 that handle makes brush row 7, roll brush row 7 brush is close on the blackboard cloth 6 at the back side of inner panel core 1,5 motions of one-way communication reducing motor, the brush row's 7 that chalk written word on the blackboard cloth 6 is close to brush cleans down, chalk dust falls under gravity in the storage powder box 8, and day accumulation for a long time in long month is many, opens outlet 10, can be contained in chalk dust in the bag, can regeneration.

The advantage of the utility model multi-functional blackboard is: on the classroom, teacher, student can thoroughly change the situation that chalk dust flies upward, and good study and teaching environment are arranged, health to teacher has facilitation, simultaneously, chalk dust can regeneration, is fit to the demand of China's recycling economy.

Description of drawings

Fig. 1 is the multi-functional blackboard front view.

Fig. 2 is the multi-functional blackboard vertical view.

Fig. 3 is brush row structure chart.

Fig. 4 is electric reducer connecting circuit figure.

Fig. 5 installs enlarged drawing for spring.

The specific embodiment

According to Fig. 1, shown in Figure 2, inner core plates 1 outer surface is surrounded by sheet iron, can inhale subsides magnet.Tension spring 2 is equipped with at inner core plates 1 two ends, tension spring 2 supporting revolving shafts 3 two ends, rotating shaft 3 is fixed by bracing frame 4 two ends that are contained on the inner core plates 1, the lower end of rotating shaft 3 links to each other with one-way communication reducing motor 5, blackboard cloth 6 is looped around in the rotating shaft 3, around the back side of blackboard cloth 6 brush row 7 is housed, and brush row 7 usefulness eccentric crankshafts 9 link to each other, brush row 7 is contained in the storage powder box 8, and storage powder box bottom has outlet 10.

Claims

1, a kind of multi-functional blackboard is characterized in that: brush row part is equipped with at the blackboard body back side, and brush row part is contained in the storage powder box.

2, multi-functional blackboard according to claim 1, it is characterized in that: blackboard body comprises: inner core plates (1) outer surface is surrounded by sheet iron, tension spring (2) is equipped with at inner core plates (1) two ends, tension spring (2) supporting revolving shaft (3) two ends, rotating shaft (3) is fixed by bracing frame (4) two ends that are contained on the inner core plates (1), rotating shaft (3) lower end links to each other with one-way communication reducing motor (5), and blackboard cloth (6) is looped around in the rotating shaft (3).

3, multi-functional blackboard according to claim 1 is characterized in that: brush row part comprises: around the back side of blackboard cloth (6) brush row (7) is housed, brush row (7) links to each other with eccentric crankshaft.