CN202498890U

CN202498890U - Automatic wiping blackboard

Info

Publication number: CN202498890U
Application number: CN2011205776364U
Authority: CN
Inventors: 韩佳然
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-10-24
Anticipated expiration: 2021-12-31

Abstract

The utility model discloses an automatic wiping blackboard, which comprises a front blackboard at the forefronts of a wall, and a rear blackboard arranged between the front blackboard and the wall. The front blackboard and the rear blackboard, which are arranged on the wall, can slide up and down through a hinge. The rear part of the front blackboard is fixedly provided with a rear eraser. The length of the rear eraser is matched with the width of the rear blackboard. The rear eraser is always in contact with the rear blackboard at a predetermined pressure. A batten-shaped front eraser, which is fixed through a support, is arranged in front of the front blackboard. The length of the front eraser is matched with the width of the front blackboard. The front eraser is always in contact with the front blackboard at a predetermined pressure. When the front and rear blackboards are staggered up and down, the blackboards are wiped clean through the fixedly arranged erasers. The automatic wiping blackboard is convenient to use. The two blackboards can be simultaneously wiped clean only through dragging to move the blackboards once or twice. Therefore, the blackboards are prevented from exposing to dust for a long time and the health of students is ensured.

Description

Automatic erasing blackboard

Technical field

The utility model relates to a kind of blackboard, relates in particular to a kind of Automatic erasing blackboard.

Background technology

Chalk and chalkboard eraser are two indispensable things in the teaching, though multimedia teaching is now popularized, its positive role is still being brought into play in traditional three chi dais one side writing on the blackboard.

The problem that in the chalk use, perplexs student and teacher most is exactly the dust problem when erasing the board.Have a large amount of dust when obliterating the thing of writing and fly up, can make human body suck a lot of dust, teachers and students' respiratory tract is worked the mischief with blackboard eraser.In addition, contact industrial dust for a long time and also possibly cause some other disease.

Especially now adopt two black board teaching writings on the blackboard in the classroom that has, be provided with up and down before and after two blackboards, the wiping amount is bigger when erasing the board like this, and dust is more, and is bigger to somatic damage.

The utility model content

The utility model purpose is to provide a kind of low dust wiping fast Automatic erasing blackboard.

For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:

A kind of Automatic erasing blackboard; Comprise the preceding blackboard that is arranged on the body of wall forefront, be arranged on before back blackboard between blackboard and body of wall; Blackboard can slide up and down to be arranged on the body of wall through hinge with the back blackboard before described; It is characterized in that: the blackboard rear portion is set with the back blackboard eraser before described; Its length is complementary with the width of back blackboard and keeps contacting of predetermined pressure with the back blackboard all the time, and blackboard the place ahead also is set with blackboard eraser before the lath-shaped through support described before, described before blackboard eraser length be complementary with the width of preceding blackboard and all the time with the contacting of preceding blackboard maintenance predetermined pressure.

Preferably, top side, blackboard back before described back blackboard eraser is fixedly installed on.

Preferably, described back blackboard eraser is fixedly installed on the front and back seriticker and is positioned at preceding blackboard top side by support.

The blackboard of the utility model; Be that the blackboard eraser that fixedly installs capable of using is with the blackboard wiped clean when the front and back blackboard misplaces up and down; Easy-to-use; Only need drag blackboard up and down and move 1 and can two blackboards wiped clean simultaneously be avoided being exposed to for a long time among the dust for twice, guarantee that the student is healthy.

Description of drawings

Fig. 1 is the structural representation of the utility model Automatic erasing blackboard;

Fig. 2 is the blackboard and the blackboard eraser structure vertical view of the utility model;

Fig. 3 is the side view of the utility model blackboard and blackboard eraser structure.

The specific embodiment

To combine the accompanying drawing of the utility model it is set forth and to explain below:

Referring to Fig. 1,2,3; The Automatic erasing blackboard of the utility model comprises the preceding blackboard 1 that is arranged on the body of wall forefront, be arranged on before back blackboard 2 between blackboard 1 and body of wall, described before blackboard can slide up and down to be arranged on the body of wall through hinge with the back blackboard, when current blackboard is left behind after blackboard then move upward synchronously; When current blackboard is held up; Postnotum moves down synchronously, and this blackboard fixed structure, set-up mode and use are not specifically given unnecessary details in existing use now.

Wherein, The blackboard rear portion is set with back blackboard eraser 3 before described, and described back blackboard eraser is the lath-shaped structure, and its length is complementary with the width of back blackboard and keeps contacting of predetermined pressure with the back blackboard all the time; Preferably, top side, blackboard back before described back blackboard eraser is fixedly installed on.

Blackboard eraser 4 before blackboard the place ahead also is set with through support 5 before described, blackboard front surface bottom before described preceding blackboard eraser 4 is fixed on by support, its length is complementary with the width of preceding blackboard and keeps contacting of predetermined pressure with preceding blackboard all the time.

The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. Automatic erasing blackboard; Comprise the preceding blackboard that is arranged on the body of wall forefront, be arranged on before back blackboard between blackboard and body of wall; Blackboard can slide up and down to be arranged on the body of wall through hinge with the back blackboard before described; It is characterized in that: the blackboard rear portion is set with the back blackboard eraser before described; Its length is complementary with the width of back blackboard and keeps contacting of predetermined pressure with the back blackboard all the time, and blackboard the place ahead also is set with blackboard eraser before the lath-shaped through support described before, described before blackboard eraser length be complementary with the width of preceding blackboard and all the time with the contacting of preceding blackboard maintenance predetermined pressure.

2. Automatic erasing blackboard as claimed in claim 1 is characterized in that: top side, blackboard back before described back blackboard eraser is fixedly installed on.

3. Automatic erasing blackboard as claimed in claim 1 is characterized in that: described back blackboard eraser is fixedly installed on the front and back seriticker and is positioned at preceding blackboard top side by support.