CN201353950Y

CN201353950Y - Dustless blackboard

Info

Publication number: CN201353950Y
Application number: CNU2008202412186U
Authority: CN
Inventors: 郭文
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2009-12-02
Anticipated expiration: 2018-12-30

Abstract

The utility model relates to a blackboard, and in particular to a dustless blackboard, which consists of a transmission shaft, a rotation handle, a brush, a liner plate, a blackboard face and a dust blocking box, wherein the dust blocking box is of a square body with a soleplate being provided with the brush and the periphery being provided with rims, and the lower end of the dust blocking box is provided with a water tank; the liner plate is installed inside the dust blocking box through an installation bracket, and the upper and the lower ends of the liner plate are provided with the transmission shaft, and both ends of the transmission shaft on the lower end of the liner plate are provided with the rotation handle, and the blackboard face is wrapped on the liner plate through the transmission shaft. With the structure that the blackboard face is wrapped on the liner plate and the liner plate is installed inside the dust blocking box and the structure that the water tank is arranged on the lower end of the dust blocking box, the dust which is produced when cleaning the blackboard is free from flying everywhere, so that the problem of the traditional blackboard that the pollution is produced to the teachers and students when cleaning the blackboard can be thoroughly solved. Moreover, the dustless blackboard has simple structure and low cost, and is convenient to install and to use, and is particularly applicable to the teaching in junior middle schools and primary schools.

Description

Dust-free blackboard

Technical field:

The utility model relates to a kind of blackboard, is specifically related to a kind of dust-free blackboard.

Background technology:

Blackboard is people in study, and teacher is indispensable a kind of writing implement when teaching, generally all adopts chalk to write, but when erasing the board after adopting chalk on blackboard, to write, a large amount of chalk dust of intelligent inevitably appearance.For addressing this problem, people have designed dust-free chalk, but because effect is undesirable, and the price height, be difficult to popularize and promote.In recent years, also have and adopt lantern projection's machine teaching and electronic writing blackboard to substitute the way that normal blackboard is imparted knowledge to students, but this type of teaching method will be made lantern slide earlier, and equipment purchasing funds costliness, and regular school particularly country school can not realize present stage at all.Thereby most schools now still adopt traditional blackboard and chalk to impart knowledge to students basically, and what make that present most of school, particularly middle and primary schools, blackboard dust give the academics and students has healthyly brought very big influence.When erasing the board, do not have dust so how to solve, can make the blackboard manufacturing simple, cheap again, become the insoluble a great problem of people.

Summary of the invention:

The purpose of this utility model is: provide a kind of manufacturing simple, cheap, material is easy to get, and is easy to promote, and does not have your dust-free blackboard of dust when erasing the board.

The utility model is to realize above-mentioned purpose by following technical solution:

A kind of dust-free blackboard, it is by power transmission shaft, swing handle, hairbrush, backing plate, blackboard panel, resistance dirt case constitutes, and it is characterized in that: resistance dirt case is on the base plate hairbrush to be housed, and is shaped on the cuboid of frame around it, the lower end of resistance dirt case is shaped on tank; Through installing rack backing plate is installed in the resistance dirt case, backing plate is equipped with power transmission shaft in two ends up and down, and swing handle is equipped with at the two ends of its lower end power transmission shaft, and blackboard panel is wrapped on the backing plate through power transmission shaft.

Described blackboard panel is made of the black dry sanding paper.

During compared with prior art beneficial effect of the utility model: blackboard panel is wrapped on the backing plate and it is installed in frame mode in the resistance dirt case owing to adopt, and the frame mode that dust collecting is installed at resistance dirt lower box part, make and when erasing the board, only need shake swing handle, the blackboard panel of writing full writing will move to the back side of backing plate along with the rotation of power transmission shaft, promptly hinder the hairbrush place that the dirt case is installed, writing on the plate face is clean by the hairbrush brushing, and the dust that brush falls drops in the tank and can not fly upward everywhere.Thoroughly solved traditional blackboard when erasing the board dust to academics and students's pollution problem.And simple in structure, cheap, installation, extremely easy to use.

Description of drawings:

Fig. 1 is the structural representation of dust-free blackboard;

Fig. 2 is the schematic cross-section of dust-free blackboard.

Among the figure: 1, power transmission shaft, 2, swing handle, 3, hairbrush, 4, backing plate, 5, blackboard panel, 6, resistance dirt case, 7, tank, 8, installing rack.

The specific embodiment:

This dust-free blackboard is by power transmission shaft 1, swing handle 2, and hairbrush 3, blackboard panel 5, resistance dirt case 6, tank 7, installing rack 8 constitutes.Resistance dirt case 6 is for being shaped on hairbrush 3 on the base plate, and its surrounding is shaped on the cuboid of frame, and the lower end of resistance dirt case 6 is shaped on tank 7, and the two ends of tank 7 are shaped on the tank door, the removing of dust after being convenient to.Backing plate 4 is equipped with through installing rack 8 in the inside of resistance dirt case 6, backing plate is equipped with power transmission shaft 1 in two ends about in the of 4, wherein swing handle 2 is equipped with at power transmission shaft 1 two ends of backing plate 4 lower ends, blackboard panel 5 is made of the black dry sanding paper, and be wrapped on the backing plate 4 through the power transmission shaft 1 of backing plate 4 upper and lower sides, form an end to end annular plate surface.The purpose of blackboard panel 5 parcel backing plates 4 is at the front handwriting with overleaf during the wiping writing, and blackboard panel 5 has one to set off power, be unlikely to not write or wiping unclean.

When needing wiping, the plate face of writing full writing only need shake swing handle 2, blackboard panel 5 will rotate along with the rotation of turning cylinder 1, the back side that turns to backing plate 4 when the plate face promptly hinders hairbrush 3 places that dirt case 6 is installed, writing will be fallen by hairbrush 3 brushes, time saving and energy saving, and plate face of the present utility model is in the state of a relative closure in resistance dirt case 6, the dust that brush falls is directly fallen in the tank 7, can not fly upward everywhere.The dust that falls into only needs regularly to remove to get final product.

The utility model manufacturing is simple, and is cheap, and material is easy to get, and is easy to promote, and do not have dust when erasing the board fully, is particularly suitable for middle and primary schools' teaching and uses.

Claims

1, a kind of dust-free blackboard, it is by power transmission shaft (1), swing handle (2), hairbrush (3), backing plate (4), blackboard panel (5), resistance dirt case (6) constitutes, it is characterized in that: resistance dirt case (6) is that hairbrush (3) is housed on the base plate, is shaped on the cuboid of frame around it, and the lower end of resistance dirt case (6) is shaped on tank (7); Through installing rack (5) backing plate (4) is installed in the resistance dirt case (6), backing plate (4) two ends up and down is equipped with power transmission shaft (1), and swing handle (2) is equipped with at the two ends of its lower end power transmission shaft (1), and blackboard panel (5) is wrapped on the backing plate (4) through power transmission shaft (1).

2, dust-free blackboard according to claim 1 is characterized in that: described blackboard panel (5) is made of the black dry sanding paper.