CN2355892Y

CN2355892Y - Belt circulation blackboard

Info

Publication number: CN2355892Y
Application number: CN 98243441
Authority: CN
Inventors: 宋志强
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-17
Filing date: 1998-09-17
Publication date: 1999-12-29
Anticipated expiration: 2008-09-17

Abstract

The utility model relates to a belt circular blackboard which is suitable for teaching occasions and other chalk writing occasions, belonging to the technical field of teaching devices. The utility model mainly achieves the purposes of no dust and automatic erasing of blackboards. The utility model is mainly characterized in that a flexible belt board face is used by a blackboard face (1), the board face is converted to the circular movement of the board face through the rotation of a transmission shaft (2), handwriting on the board face is automatically erased through a strip-shaped blackboard eraser (3) pressed on the board face when the board face is moved, the strip-shaped blackboard eraser is fixedly arranged on the side face or the back face of the blackboard, a build-in structure is used, and the strip-shaped blackboard eraser is isolated from the outside world.

Description

Banded circulation blackboard

The utility model relates to a kind of dustless, wipes the flexible banded blackboard structure of examination automatically.

People more and more are concerned about the healthy problem of chalk dust harm Faculty and Students, constantly seek to reduce the effective ways of dust.The scheme of present disclosed minimizing dust has two kinds: a kind of is " dust-free chalk ", and its technical scheme is to improve the chalk prescription, makes the grey frustillatum of pen under wiping.But in actual the use, the pen ash of this little bulk is because dialing fast of blackboard eraser, and arm brandishes under the air agitation effect of generation, is broken into the powder ash and flies upward; Another kind of scheme is the blackboard eraser cleaner, and its technical scheme has solved the dust that labor cleaning's blackboard eraser produces effectively for the blackboard eraser of the blackboard that will nuzzle up places deashing in the cleaner, but does not solve the subject matter of wiping a large amount of dusts that produce in the examination blackboard process.

The purpose of banded circulation blackboard is to provide a kind of blackboard structure of dustless, automatic wiping, and the process of erasing the board is finished automatically for subsidiary, fundamentally solves chalk dust and plays grey problem.

For achieving the above object, the utility model adopts following technical scheme:

This programme is made up of the banded blackboard of flexibility (1) and power transmission shaft (2), strip blackboard eraser (3), pinch roller (4) and gripper shoe major parts such as (5).(or up and down) both sides about power transmission shaft (2) is sub-packed in, one of them is associated with power set (6), and gripper shoe (5) is sandwiched between the front and back of banded circulation blackboard (1); The strip blackboard eraser is loaded on both sides (or back side) and is pressed on the plate face; Pinch roller (4) is loaded on the blackboard back side.By starting power set power transmission shaft (2) is rotated, circulate mobilely from the front to the back side around power transmission shaft thereby drive banded blackboard (1), in moving process, person's handwriting is automatically wiped.Because blackboard eraser is static, the motion of plate face is again at the uniform velocity, thereby the pen ash under wiping falls in the ash accepting box (7) by the movement of falling object.Blackboard eraser and ash accepting box can outdoor after class cleanings.Because blackboard eraser is built-in, dust cover is arranged outward simultaneously, air outside flows can not stir inner chalk dust, so really reach no dust hazard purpose.Gripper shoe (5) has been to write supporting role.Banded blackboard is a strips of deformable material, can be made by strips of deformable material such as woven belt, moulding paper tape or folder cloth rubber belts, and the surface is coated with blackboard paint or other PROCESS FOR TREATMENT.

The utility model dust simple and reasonable for structure, easy to use, no need only be write and distinguishing feature such as must not wipe.Alleviate teachers work intensity.Sanitation and hygiene, safe and reliable.

Description of drawings (1): structural principle front view; Figure (2): figure (1) vertical view; Figure (3): the front view of embodiment installed in banner; Figure (4): the vertical view of figure (3); Figure (5): the vertical scroll of painting or calligraphy is installed the front view of embodiment; Figure (6): the side view of figure (5);

Further specify the utility model below in conjunction with embodiment

Shown in Fig. 3,4, the front is the one side towards Faculty and Students, the plate face can be divided into three districts in actual the use uses, both sides are for writing the district, middle for explaining the district, after write and finishes in Dang Zuo district (or right district, be accustomed to determining by the teacher), start the power set button, explanation district explanation in the middle of just the content of writing the district can being moved on to, the content that the two sides face has been explained in the moving process is wiped free of, and entering the plate face of writing the district is the cleaner plate face, can be for continuing to write, so circulation, three complex processes are finished in a simple action, seem very convenient.

Be depicted as the embodiment that the vertical scroll of painting or calligraphy is installed as 5,6, the lyceum that this example especially adapts to universities uses (universities' lecture contents is more usually).The teacher begins from up to down to write from the height that can reach, and writes full back panel and moves towards last, and whole plate face content is continuous, complete, it is coherent to write and explain, convenient teaching.

The utility model also can be adapted to family and enterprises and institutions, easy, practical, dustless, sanitation and hygiene.

Claims

1, banded circulation blackboard is made up of the banded blackboard of flexibility (1) and power transmission shaft (2), strip blackboard eraser (3), pinch roller (4) and gripper shoe major parts such as (5).(or up and down) both sides about power transmission shaft (2) is sub-packed in, one of them is associated with power set (6), and gripper shoe (5) is sandwiched between the front and back of banded circulation blackboard (1); The strip blackboard eraser is loaded on both sides (or back side) and is pressed on the plate face; Pinch roller (4) is loaded on the blackboard back side, the band-like plate face converts to mobile by the rotation of power transmission shaft, it is characterized in that: banded circulation blackboard panel circulates mobile with the rotation of power transmission shaft, the wiping test run that produces plate face writing is moving, the strip blackboard eraser is fixedly mounted on the both sides (or back side) of banded circulation blackboard, is pressed on the plate face.

2, according to the described banded circulation blackboard of claim 1, it is characterized in that: banded blackboard (1) is flexible, banded structure.