CN2122738U

CN2122738U - Enclosed full-automatic erasing dustless blackboard

Info

Publication number: CN2122738U
Application number: CN 92224552
Authority: CN
Inventors: 叶锦兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-15
Filing date: 1992-06-15
Publication date: 1992-11-25

Abstract

The utility model relates to an enclosed full-automatic erasing dustless blackboard which belongs to the blackboard class for the teaching aid. The utility model is composed of a motor power part, a gear drive part, a dust erasing and collecting part, a flexible blackboard and a frame. The utility model has the advantages that the blackboard has good display effect and can be used for continuous writing, the blackboard is conveniently replaced, the dust pollution can be prevented, and teachers' and students' good health can be guaranteed.

Description

Enclosed full-automatic erasing dustless blackboard

The utility model relates to a kind of teaching blackboard, and particularly closed full-automatic wiping word, dust-free blackboard belong to the teaching aid class.

In the classroom of large, medium and small school, the writing blackboard of use still uses the fixed head face, by manually wiping the plate face of using with blackboard eraser at present.Dust from flying, contaminated air, unfavorable to teacher, student's health.

The purpose of this utility model is to overcome the problems referred to above, and a kind of clipboard face of changing easily is provided, and wipes the closed full automatic dust-free blackboard of word automatically.

The purpose of this utility model is achieved in that it by power partly, and running part is wiped dirt, control of dust, flexible blackboard plate face and three of frameworks and partly formed:

One. power partly: ac motor is loaded on the upper right side of blackboard.

Two. the driving section: the turning cylinder of a horizontal setting is respectively arranged up and down, and a bearing respectively is equipped with at the two ends of axle, and last axle is equipped with a driven gear, and by the gear driven on the motor, two turning cylinder skins are surrounded by elastomeric material, to increase frictional force.

Three. wipe dirt, control of dust part

1. a rotation parallel with turning cylinder is housed between upper and lower two turning cylinders wipes the dirt axle, skin is surrounded by one deck flexible material so that wipe dust, by motor one end one of driven gear be installed also, and respectively there is a bearing at two ends.

2. there is one palm fiber to be arranged near wiping the dirt axle, wipes the dust that accumulates on the dirt axle, improve scraping effect so that constantly sweep off with it with long jamb duster.

3. below jamb duster, also have one with jamb duster with the laying dust box of growing, the dust that falls with collection.

Four. flexible blackboard

1. flexible blackboard is made by flexible material, is surrounded on two turning cylinders up and down, goes in ring along with the rotation of turning cylinder.

2. there is the liner plate of a hard material back that is close to flexible material, so that write.

Five. framework

Framework is used to support each part mentioned above, and plays the attractive, decorative mass action, and the tension mechanism of operating buttons and adjustment flexible blackboard is housed on it.

Below in conjunction with embodiment and accompanying drawing operation principle of the present utility model is described below:

Fig. 1 is a three-dimensional structure diagram of the present utility model

Fig. 2 is a profile of the present utility model

1 driving shaft gear among the figure

2 motor gears among the figure

3 motor among the figure

4 wipe the word drum gear among the figure

5 driven shafts among the figure

6 driving shafts among the figure

7 wipe the word cylinder among the figure

8 wipe the dirt hairbrush among the figure

9 liner plates among the figure

10 flexible blackboard faces among the figure

11 adjusting devices among the figure

The utility model operating process: connect power supply, press starting switch, motor (3) rotates, pass through gears engaged by motor gear (2), drive driving shaft gear (1) and rotate, thereby driving shaft (6) is rotated counterclockwise, and drive wiping word cylinder (7) by gear (4).The driving shaft frictionally drives flexible blackboard face (10) and moves upward, and wipes the word cylinder and contacts with blackboard panel, and do relative motion.Frictionally falls the writing brushing on the plate face, wipes dirt hairbrush (8) and again the dust on the wiping word cylinder in rotating is brushed, and drops in the following dust storage groove, and dust storage groove can regularly be extracted cleaning out.Two adjusting devices (11) are arranged below blackboard, can adjust the tension force of flexible board face, make it to be in the optimal movement state.

Advantage of the present utility model and effect:

Plate face bandwagon effect is good, increase to write usable floor area, but continuous writing can be changed the clipboard face easily. Exempted the physical demands of an erasing powder, overcome the drawback of 3 erasing word dust from flying, prevented the pollution of air in the classroom, healthy for teacher student provides guarantee. The utility model is also broken the irrational occupation mode of continuity blackboard for a long time, writes blackboard for large, medium and small school provides desirable didactic works.

Claims

1, a kind of closed full-automatic wiping word dust-free blackboard is made of plate face and wiping dirt dust collect plant, and it is characterized in that: it also comprises power section, and running part is wiped dirt, control of dust, flexible blackboard and framework and formed:

1. power partly is an ac motor (3);

2. running part is gone up axle for turning cylinder (5), (6) that a horizontal setting is respectively arranged up and down a gear (1) is housed, and drives by motor gear (2), and bearing is equipped with at the two ends of axle, and the diaxon skin is surrounded by elastomeric material;

3. wiping dirt, control of dust partly is a wiping dirt axle (7) parallel with turning cylinder, drive by driven gear (4), respectively there is a bearing at its two ends, outer bag one deck flexible material, have one with it with on the long jamb duster (8) palm fiber being arranged near wiping the dirt axle, there is a laying dust box long together with jamb duster the jamb duster below;

4. flexible blackboard is surrounded on two turning cylinders up and down, rotates with turning cylinder and goes in ring, and there is the liner plate of a hard material back that is close to flexible material, is used to write;

Operating buttons and guiding mechanism (11) are 5. arranged on the framework.

2, blackboard as claimed in claim 1 is characterized in that said flexible blackboard is to be made by plastics hyperplasia cloth.