CN201346930Y

CN201346930Y - Blackboard

Info

Publication number: CN201346930Y
Application number: CNU2008201583318U
Authority: CN
Inventors: 陈艳; 喻承
Original assignee: SHENGE HIGH SCHOOL SHANGHAI
Current assignee: SHENGE HIGH SCHOOL SHANGHAI
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2009-11-18
Anticipated expiration: 2018-12-30

Abstract

The utility model discloses a blackboard, which comprises a prior blackboard; wherein tracks are respectively mounted on the upper and the lower edges of the prior blackboard; a strip-shaped blackboard eraser which is extended from the upper edge to the lower edge is also mounted on the prior blackboard; and the upper and the lower ends of the strip-shaped blackboard eraser are provided with wheels positioned in the tracks of the upper and the lower edges. The upper end of the strip-shaped blackboard eraser is provided with a micro-motor which can drive the wheels. The blackboard has the advantage that letters written on the blackboard by chalk can be conveniently and quickly erased, thus reducing the labor intensity of teachers during classes and increasing the class efficiency.

Description

A kind of blackboard

Technical field

The utility model relates to a kind of blackboard, relates in particular to a kind of blackboard that can wipe letter written with chalk on it easily and fast.

Background technology

The present still most of schools of blackboard are used for the instrument of writing on the blackboard when teaching.Use the trouble of blackboard maximum will often erase the board exactly.Erasing the board to increase teacher's the amount of labour on the one hand, also can waste time in classroom on the other hand, reduces classroom efficiency.

In addition, existing blackboard can produce a large amount of dust when wiping, and this can cause harm to teacher who gives a lesson and the SH of living in for a long time in the classroom.

The utility model content

Technical problem to be solved in the utility model provides a kind of blackboard of wiping letter written with chalk on it easily and fast, to overcome the deficiency that prior art exists.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of blackboard, comprise existing blackboard, it is characterized in that: the upper and lower edge of described existing blackboard is separately installed with track, on the existing blackboard strip blackboard eraser that extends to lower limb from top edge is installed also, this strip blackboard eraser upper and lower end has the roller of the track that is positioned at upper and lower edge, and the upper end of described strip blackboard eraser has the micromachine of driving rolls.

In addition, in further improvement of the utility model, the inside of described strip blackboard eraser has cavity, the wiping face that contacts with existing blackboard of strip blackboard eraser is distributed with the dust mouth that is communicated with cavity, the lower end of described strip blackboard eraser is equipped with micro-cleaner, and the suction port of this micro-cleaner is communicated with cavity.

Adopt technique scheme, blackboard of the present utility model when needs are wiped letter written with chalk on the blackboard, only needs to start micromachine and drives strip blackboard eraser move left and right on blackboard back and forth, just can quickly and easily the letter written with chalk on the blackboard be wiped.Therefore, blackboard of the present utility model has the advantage of wiping letter written with chalk on it easily and fast, helps reducing teacher and goes up the labour intensity of class hour and improve classroom efficiency.

In addition, can so just not have the chalk dust disperse in the classroom directly with the inside of the chalk dust suction strip blackboard eraser under wiping, help the healthy of teacher and classmate by micro-cleaner.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is elaborated

Fig. 1 is a structural representation of the present utility model.

Among the figure:

100, existing blackboard 200, track 300, strip blackboard eraser 400, roller 500, micromachine 600, micro-cleaner 301, cavity 302, dust mouth

The specific embodiment

As shown in Figure 1, blackboard of the present utility model is the improvement on existing blackboard 100, specifically improves as follows:

A track 200 that extends along the blackboard length direction is installed respectively at the upper and lower edge of existing blackboard 100, vertical with track 200, on existing blackboard 100, the strip blackboard eraser 300 that extends to lower limb from top edge is installed, strip blackboard eraser 300 upper and lower ends have and have 400, two rollers 400 of roller respectively and lay respectively at the track 200 that is positioned at upper and lower edge.In addition, the upper end of strip blackboard eraser 300 also has the roller 400 of connection and the micromachine 500 of driving rolls 400.

Adopt said structure, when needs are wiped letter written with chalk on the blackboard, only need to start micromachine 500 and drive strip blackboard erasers 300 move left and right on blackboard, just can quickly and easily the letter written with chalk on the blackboard be wiped.Therefore, blackboard of the present utility model has the advantage of wiping letter written with chalk on it easily and fast, helps reducing teacher and goes up the labour intensity of class hour and improve classroom efficiency.

In addition, the inside of strip blackboard eraser 300 has cavity 301, the wiping face that contacts with existing blackboard 100 of strip blackboard eraser 300 is distributed with the dust mouth 302 that is communicated with cavity, in the lower end of strip blackboard eraser 300 micro-cleaner 600 is installed in addition, the suction port of this micro-cleaner 600 is communicated with cavity 301.Like this, can so just not have the chalk dust disperse in the classroom directly with the inside of the chalk dust suction strip blackboard eraser under wiping, help the healthy of teacher and classmate by micro-cleaner.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop on claim scope of the present utility model to variation, the modification of the above embodiment.

Claims

1, a kind of blackboard, comprise existing blackboard, it is characterized in that: the upper and lower edge of described existing blackboard is separately installed with track, on the existing blackboard strip blackboard eraser that extends to lower limb from top edge is installed also, this strip blackboard eraser upper and lower end has the roller of the track that is positioned at upper and lower edge, and the upper end of described strip blackboard eraser has the micromachine of driving rolls.

2, blackboard according to claim 1, it is characterized in that: the inside of described strip blackboard eraser has cavity, the wiping face that contacts with existing blackboard of strip blackboard eraser is distributed with the dust mouth that is communicated with cavity, the lower end of described strip blackboard eraser is equipped with micro-cleaner, and the suction port of this micro-cleaner is communicated with cavity.