CN214822174U

CN214822174U - Lifting automatic erasing blackboard

Info

Publication number: CN214822174U
Application number: CN202120570114.5U
Authority: CN
Inventors: 罗洪峰; 钟源孜; 郑雅轩; 史留勇; 何孝涵
Original assignee: Hainan University
Current assignee: Hainan University
Priority date: 2021-03-21
Filing date: 2021-03-21
Publication date: 2021-11-23
Anticipated expiration: 2031-03-21

Abstract

The utility model discloses a lift automatic erasure formula blackboard, it belongs to teaching, office supplies equipment, and it can block the blackboard and erase the inconvenient problem of characters because of self when having solved present blackboard use. It mainly includes blackboard, power device and erasing device. The blackboard comprises a blackboard surface and teeth; the power device comprises an upper roller, a lower roller, an upper synchronous belt wheel, a lower synchronous belt wheel, a small belt wheel, a belt, a motor, a placing frame, a first fixing rod, a second fixing rod and a middle fixing rod; the erasing device comprises a hook, a pocket plate, erasing cloth, a spring and a third fixing rod.

Description

Lifting automatic erasing blackboard

Technical Field

The utility model belongs to teaching, office supplies equipment, concretely relates to lift automatic erasing formula blackboard.

Background

At present, the blackboard is still an indispensable tool in the field of education. The common blackboard meets the human body mechanical standard of most teachers, but brings inconvenience to teachers with small stature, and the utilization rate of the board is not high; due to the problems of height and the like, the blackboard writing is easily shielded, so that the teaching is inconvenient; in addition, teachers frequently wipe the blackboard, and the time elapses, so that the course efficiency is reduced. Therefore, the existing blackboard needs to be improved to have the lifting and wiping functions, and the blackboard can be conveniently debugged according to the requirement so as to better teach.

Disclosure of Invention

An object of the utility model is to provide a lift automatic erasure formula blackboard to improve the result of use of blackboard better, conveniently debug as required, can impart knowledge to students better.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a lifting automatic erasing blackboard comprises a blackboard, a power device and an erasing device. The blackboard comprises a blackboard surface and teeth, the blackboard surface can be used for writing, and the teeth are meshed with an upper roller and a lower roller of the power device; the power device comprises an upper roller, a lower roller, an upper synchronous belt pulley, a lower synchronous belt pulley, a small belt pulley, a belt, a motor, a placing frame, a first fixing rod, a second fixing rod and a middle fixing rod, wherein the upper roller and the lower roller are respectively coaxially connected with the upper synchronous belt pulley and the lower synchronous belt pulley and are fixed on the wall through the first fixing rod and the second fixing rod; the erasing device comprises a hook, a pocket plate, erasing cloth, a spring and a third fixing rod, one end of the pocket plate is fixed on the wall through the third fixing rod, and the other end of the pocket plate is provided with a connecting small column. The pocket board can rotate around the third dead lever, the couple is made with softer material, and one end is articulated with the wall, and the other end hooks the little post of connection of pocket board, it is located the pocket board to erase cloth, the spring is fixed to be located on the pocket board and is erased cloth and pocket between the board.

Furthermore, the blackboard is in a flat cylinder shape, the back surface is in a tooth shape, and the gear is matched with the upper roller and the lower roller.

Furthermore, an erasing cloth is arranged between the pocket plate and the blackboard and is connected with the pocket plate through a spring.

Further, the hook is taken down, so that the pocket plate can be separated from the plate surface, and the cloth can be cleaned.

The utility model discloses a beneficial effect lie in: the utility model discloses a device has and goes up and down and cleans the function, and the convenience is debugged as required, can impart knowledge to students better.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the blackboard of the present invention.

Fig. 3 is a schematic view of the power plant of the present invention.

Fig. 4 is a schematic view of the erasing device of the present invention.

Fig. 5 is a schematic view of the fixing structure of the present invention.

Fig. 6 is a partially enlarged view of the fixing structure of the present invention.

In fig. 1: 11-wall, 21-blackboard, 31-power device and 41-erasing device.

In fig. 2: 22. blackboard face, 23-teeth.

In fig. 3: 32-upper roller, 33-lower roller, 34-upper synchronous pulley, 35-lower synchronous pulley, 36-small pulley, 37 belt, 38-motor and 39-placing rack.

In fig. 4: 42-hook, 43-pocket plate, 44-wiping cloth.

In fig. 5 and 6: 51-first fixed rod, 52-middle fixed rod, 53-second fixed rod, 54-third fixed rod, 55-connecting small column, 56-spring.

Detailed Description

In order to explain the technical content, structural features, objectives and functions of the present invention in detail, the present invention will be further explained with reference to the following embodiments and accompanying drawings.

As shown in FIG. 1, the present invention comprises a blackboard 21, a power device 31, and an erasing device 41.

As shown in fig. 2, the blackboard 21 includes a blackboard face 22 and teeth. The blackboard 21 is in the shape of an oblate cylinder, the back surface is in the shape of a tooth, and the teeth 23 are meshed with the teeth of the upper roller 32 and the lower roller 33.

As shown in fig. 3, 5 and 6, the power device 31 includes an upper roller 32, a lower roller 33, an upper synchronous pulley 34, a lower synchronous pulley 35, a small pulley 36, a belt 37, a motor 38, a rack 39, a first fixing rod 51, a second fixing rod 53 and a middle fixing rod 52, the upper roller 32 and the lower roller 33 are coaxially connected with the upper synchronous pulley 34 and the lower synchronous pulley 35 respectively, the upper roller 32 is fixed on the wall 11 through the first fixing rod 51, the lower roller 33 is fixed on the wall 11 through the second fixing rod 53, the motor 38 is fixed on the rack 39 and coaxially connected with the small pulley 36, the rack 39 is fixed on the wall through the middle fixing rod 52, the small pulley 36 is connected with the lower synchronous pulley 35 through the belt 37, the lower synchronous pulley 35 is connected with the upper synchronous pulley 34 through the belt 37, so that the small pulley 36 is driven by the motor 38 to rotate the lower synchronous pulley 35 and the upper synchronous pulley 34 through the belt 37, thereby driving the rotation of the upper roller 32 and the lower roller 33, and finally driving the blackboard 21 to move.

As shown in fig. 4, the erasing device 41 includes a hook 42, a pocket plate 43, and an erasing cloth 44. The rear of a pocket plate 43 which is positioned right below the blackboard is fixed on the wall surface 11 through a third fixing rod 54, connecting small columns 55 are embedded at the two sides of the front part of the pocket plate 43, hooks 42 are fixed on the connecting small columns 55, the hooks 42 are connected with a middle fixing rod 52 to enable the front part of the pocket plate 43 to be closely connected with the surface of the blackboard 21, and the middle fixing rod 52 is fixed on the wall surface. An erasing cloth 44 is arranged between the pocket plate 43 and the blackboard 21, and the erasing cloth 44 is connected with the pocket plate 43 through a spring 56.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the method of using the present invention includes the following steps: the utility model discloses a device is when concrete implementation, through the remote controller, makes motor 38 drive band pulley 36, drives belt 37, drives synchronous pulley 35 and last synchronous pulley 34 down then for upper roll 32 rotates with lower roll 33, makes blackboard face 22 reciprocate then through tooth 23. When the blackboard surface 22 having the writing passes through the wiping device 41, the writing is erased by the wiping cloth 44, and the chalk dust is left in the wiping cloth 44 and the pocket plate 43. When the chalk dust is stored too much or the writing is not completely erased, the hook 42 can be taken down to separate the pocket plate 43 from the blackboard surface 22, and the erasing cloth 44 and the pocket plate 43 can be cleaned.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lift automatic erasure formula blackboard which characterized in that: comprises a blackboard, a power device and an erasing device; the blackboard comprises a blackboard surface and teeth, the blackboard surface can be used for writing, and the teeth are meshed with an upper roller and a lower roller of the power device; the power device comprises an upper roller, a lower roller, an upper synchronous belt pulley, a lower synchronous belt pulley, a small belt pulley, a belt, a motor, a placing frame, a first fixing rod, a second fixing rod and a middle fixing rod, wherein the upper roller and the lower roller are respectively coaxially connected with the upper synchronous belt pulley and the lower synchronous belt pulley and are fixed on the wall through the first fixing rod and the second fixing rod; the erasing device comprises a hook, a pocket plate, erasing cloth, a spring and a third fixing rod, wherein one end of the pocket plate is fixed on the wall through the third fixing rod, and the other end of the pocket plate is provided with a connecting small column; the pocket board can rotate around the third dead lever, the couple is made with softer material, and one end is articulated with the wall, and the other end hooks the little post of connection of pocket board, it is located the pocket board to erase cloth, the spring is fixed to be located on the pocket board and is erased cloth and pocket between the board.

2. The vertically movable self-erasing blackboard according to claim 1, wherein: the blackboard is in a flat cylinder shape, the back surface of the blackboard is provided with teeth, and the teeth are meshed with the teeth of the upper roller and the lower roller.

3. The vertically movable self-erasing blackboard according to claim 1, wherein: a piece of erasing cloth is arranged between the pocket plate and the blackboard, and the erasing cloth can be fixed on the pocket plate through a spring.

4. The vertically movable self-erasing blackboard according to claim 1, wherein: one end of the hook with the hook can be taken down from the connecting small column, so that the pocket plate can be separated from the plate surface, and the cloth can be cleaned and wiped after separation.