CN205416871U

CN205416871U - Multi -functional blackboard

Info

Publication number: CN205416871U
Application number: CN201521068432.2U
Authority: CN
Inventors: 韩呈祥
Original assignee: 韩呈祥
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-08-03
Anticipated expiration: 2025-12-17

Abstract

The utility model provides a multi -functional blackboard, including main blackboard (1), its characterized in that: two sides of the left and right sides of main blackboard (1) respectively be provided with one intermediate layer notch (7) to be provided with pull nimble vice blackboard (2) in intermediate layer notch (7), the top of main blackboard (1) still be provided with one projection curtain cloth box (3), the below of main blackboard (1) still is provided with drawer (6) of two rows of symmetries, the top of drawer (6) is provided with collect dust tank (5). The utility model relates to a rationally, simple structure, the area is write in the increase, prevents that the chalk dust from polluting the classroom, has multiple functions.

Description

A kind of multi-functional blackboard

Technical field

This utility model relates to field of Educational Technology, is specifically related to a kind of multi-functional blackboard.

Background technology

At present, the blackboard used on primary school classroom, it is substantially all the blackboard being integrally fixed on wall, the size of blackboard is all fixing, if the area used is inadequate, it is impossible to continues to write, can only the writing on the blackboard content write before be wiped, can not wipe if the writing on the blackboard content write is particularly significant before, just allow teacher feel difficult.And, operation that sometimes teacher arranges or the important content write, need classmate to remember, probably due to the needs of lower class teacher, and have to wipe.

In teaching process, some course, teacher needs to carry some teaching aids, the article such as teaching aid are essentially all and are placed directly on lectern, sometimes probably due to the thing put on lectern is too much, cause teacher take away teaching aid when inconvenient, delayed the time of teaching.

Also needing in the most novel teaching use lantern slide, teacher also needs in the class be hung up properly by projection screen in advance, also to be kept well by projection screen after End-of-Course, and projection screen carries inconvenience carefully.

Classroom dust pollution is the killer that teachers and students are healthy, is to perplex one of healthy pertinacious disease of teachers and students for a long time, after dust enters human body, lung, respiratory tract, glasses, ear, skin etc. is had impact in various degree.The course that modern student is to be learned is all a lot, and the when of at school, teacher is often required to say a lot of content, wiping blackboard many times, can produce substantial amounts of dust during erasing the board, and pollutes the air in classroom, has undesirable effect the health of teacher, front-seat classmate.

Utility model content

The purpose of this utility model is to fix for the size of blackboard in prior art, the deficiency of chalk ash pollution Classroom air etc., it is provided that a kind of usable floor area that can increase blackboard, can collect the multi-functional blackboard of chalk dust etc..

The purpose of this utility model is realized by techniques below means: a kind of multi-functional blackboard, include main blackboard, it is characterized in that: two, the left and right of described main blackboard side is each provided with an interlayer notch, and is provided with pull secondary blackboard flexibly in interlayer notch；Described main blackboard be arranged above a projection screen box；The lower section of described main blackboard is additionally provided with the drawer that two rows are symmetrical；Described drawer be provided above ash collection slot.

Projection screen is had in described projection screen box.

Compared with prior art this utility model has a following clear advantage: 1, this utility model is reasonable in design, simple in construction, write area can be increased, avoid teacher to feel difficult for important written contents wipes, it is simple to being smoothed out of teaching, improve teaching efficiency.2, it is provided with projection screen in this utility model projection screen box, solves teacher and carry the worry of projection screen.3, the drawer that this utility model is arranged, can unify to receive teaching aid, it is simple to fetch.4, the dust during this utility model greatly reduces air, reduces dust to student and the harm of teacher's health.

Accompanying drawing explanation

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

In figure, the main blackboard of 1-, 2-pair blackboard, 3-projection screen box, 4-projection screen, 5-ash collection slot, 6-drawer, 7-interlayer notch.

Detailed description of the invention

Illustrate with detailed description of the invention, this utility model to be described in further detail below in conjunction with accompanying drawing:

A kind of multi-functional blackboard as shown in Figure 1, include main blackboard 1, it is characterized in that: two, the left and right of described main blackboard 1 side is each provided with an interlayer notch 7, and in interlayer notch 7, it is provided with pull secondary blackboard 2 flexibly, so arrange, considerably increase write area, and important content can directly be written on secondary blackboard 2, it is to avoid wipe the important content write before；Described main blackboard 1 be arranged above a projection screen box 3, have projection screen 4, projection screen 4 can lift contraction in projection screen box 3, need with when pull down, it is received in time no in projection screen box 3, solves teacher and carry the inconvenience of projection screen；The lower section of described main blackboard 1 is additionally provided with the drawer 6 that two rows are symmetrical, so arranges, and can unify to receive teaching aid, it is simple to fetch, save the space of lectern；Described drawer 6 be provided above ash collection slot 5, chalk dust when erasing the board falls in ash collection slot 5, it is therefore prevented that chalk dust fly everywhere, reduce dust diffusion, prevent the environment in dust pollution classroom.

In a word, this utility model provides a kind of reasonable in design, simple in construction, is greatly increased the multi-functional blackboard of write area.The above; it is only a part of detailed description of the invention of the present utility model; protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.

Claims

1. a multi-functional blackboard, include main blackboard (1), it is characterized in that: two, the left and right side of described main blackboard (1) is each provided with an interlayer notch (7), and is provided with pull secondary blackboard (2) flexibly in interlayer notch (7)；Described main blackboard (1) be arranged above a projection screen box (3)；The lower section of described main blackboard (1) is additionally provided with the drawer (6) that two rows are symmetrical；Described drawer (6) be provided above ash collection slot (5).

A kind of multi-functional blackboard the most according to claim 1, it is characterised in that: there is projection screen (4) in described projection screen box (3).