CN202169813U

CN202169813U - Multifunctional blackboard

Info

Publication number: CN202169813U
Application number: CN2011202805810U
Authority: CN
Inventors: 马黎林
Original assignee: Shaoxing county jianhu middle school
Current assignee: Shaoxing county jianhu middle school
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-03-21
Anticipated expiration: 2021-08-04

Abstract

The utility mode mainly discloses a multifunctional blackboard which comprises a main blackboard inwardly embedded in a wall body; sliding rails which exceed the main blackboard in length are arranged on the wall surface above and below the main blackboard; and secondary blackboards are arranged on the sliding rails in a sliding manner. The multifunctional blackboard is formed by a plurality of blackboards, so that the utilization areas of the blackboard are increased, and much time wasted in wiping the blackboard is saved. In addition, a dust collector capable of movably absorbing can be additionally attached onto the multifunctional blackboard to solve the effect of dust on the environment in a classroom.

Description

A kind of multi-functional blackboard

Technical field

The utility model relates to the educational supply technical field, and is special relevant with a kind of multi-functional blackboard.

Background technology

In the history in more than 200 years, miniaturization, individualized to maximization, publicization has been experienced in the development transition of blackboard.

Britain before the 19th-century, pupils go to school, and all hang a fritter plank on the neck, are pasting a piece of paper above, are writing alphabet or are praying literary composition.The portable dam that this staff is one is exactly the predecessor of blackboard.This generally is called the character learning plate, and the plate of " luxury " is made of horn or ivory.

Variation from portable to " desk-top " has just taken place subsequently, should be " suspension type " in fact---hang over a plank of front, classroom, size is little, long 38 centimetres.From then on the character learning plate has been transformed into teaching aid by student appliance.In paper and also very expensive age of pencil, this has economized a lot of money to students.

First real blackboard is by the blue invention of Scotland educationist James skin.He is the principal in middle school, old Edinburg, teaches geography class with blackboard and the pastel oneself invented.From then on the most showy thing has just had erasable repeatedly function in this classroom.This new technology has striden across the Atlantic Ocean very soon.

1801, mathematics teacher George Ba Lun of West Point Military School became the American that first is come to class with big blackboard.But first blackboard patent to after two more than ten years just by the Sai Miuerhaoer of American education man registration, he paints black to a deal board.Simultaneously also there is the people directly to be coated in lime, the plaster of paris and the soot on the bottom of a pan on the wall in classroom.

Blackboard can be demonstrated easily, explain by instructors, has improved the efficient of teaching widely.But at present the usage space of blackboard is few, writes and has expired and need wipe, and such class just need be taken time on erasing the board, and chalk dust also has certain influence to the environment in classroom.

In order to address the above problem, the inventor designs a kind of multi-functional blackboard, and this case produces thus.

The utility model content

The main purpose of the utility model provides a kind of multi-functional blackboard, comprises polylith blackboard composition, thereby can make blackboard utilize area to increase, and need not waste a lot of times on erasing the board.In addition, also can establish dust catcher in the utility model in addition, can solve the influence of dust classroom environment with a removable absorption.

In order to achieve the above object, the utility model is realized through following technical scheme:

A kind of multi-functional blackboard comprises a main blackboard that is embedded in the body of wall, and the sliding rail that length surpasses main blackboard length is installed on two sides' the metope about main blackboard, is slidingly fitted with secondary blackboard on the sliding rail.

Described secondary blackboard be about two.

Described secondary blackboard upper edge is provided with the hook that is used to hang small blackboard.

Described a kind of multi-functional blackboard also is equipped with dust catcher, and dust catcher connects dust box through tube connector.

Described dust box bottom is equipped with pressure sensor, detects the dust box internal pressure, and the alarm signal that produces on the signal controlling dust box is lighted.

After adopting such scheme, the utility model has been broken the restriction of traditional blackboard, and two kinds of blackboards of major-minor are used, when both sides are arrived in secondary blackboard slippage, and main blackboard performance major function; When main blackboard uses when not enough, assist use in the middle of directly secondary blackboard being pulled to, expanded the actual usable floor area of blackboard so virtually.Can also on secondary blackboard, hook be set in the utility model simultaneously, further hang up small blackboard and expand use once more, make utilization rate improve greatly.

In addition, dust catcher of absorption on blackboard is adsorbed onto being divided into through dust catcher of generation in the dust box, is furnished with pressure sensor simultaneously and detects the splendid attire gravity in the dust box in real time, in time reminds rubbish in the wash-up tray.

Description of drawings

Fig. 1 is the structural representation of the utility model preferred embodiment.

The specific embodiment

In conjunction with accompanying drawing, preferred embodiment explains further details to the utility model.

A kind of multi-functional blackboard comprises main blackboard 1, secondary blackboard 2, sliding rail 3.The installation of main blackboard 1 is different from conventional mounting, but in being embedded into body of wall, the surface of main blackboard 1 does not protrude in metope.

On the metope of the both sides up and down of main blackboard 1, sliding rail 3 is installed, pulley or slide block etc. and the slide unit that sliding rail 3 matches are installed in the both sides up and down of secondary blackboard 2, make whole secondary blackboard 2 be slidingly mounted on the sliding rail 3.Two altogether on secondary blackboard 2, not the time spent respectively slippage be positioned over the right and left of main blackboard 1.Therefore, the length of sliding rail 3 is corresponding with the moving range of secondary blackboard 2.In addition, in order further to expand the actual usable floor area of blackboard, the upper edge of secondary blackboard 2 is provided with hook 8 in the present embodiment, is used to hang other small blackboards, in same space, has further expanded the space that utilizes of blackboard like this.

In the present embodiment, also be provided with a dust catcher 4, dust catcher 4 is connected in the dust box 5 through tube connector 6.Dust catcher 4 can be adsorbed on the blackboard and use, and the principle through pressure difference is adsorbed onto dust in the dust box 5.For realizing intelligent alarm, be provided with the pressure sensor (not shown) at dust box 5 inner bottom parts, an alarm lamp 7 is installed on the panel of dust box 5, detected pressure signal reaches setting value in pressure sensor, then lights alarm lamp, produces to report to the police.

The utility model has been broken the limitation of traditional blackboard usable floor area, except the use of main blackboard 1, also mixes secondary blackboard 2, is provided with to hang the small blackboard use in addition, makes the utilization rate of blackboard increase greatly.

The foregoing description only be used to explain inventive concept of the utility model, but not to the qualification of the utility model rights protection allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should fall into the protection domain of the utility model.

Claims

1. a multi-functional blackboard is characterized in that: comprise a main blackboard that is embedded in the body of wall, the sliding rail that length surpasses main blackboard length is installed on two sides' the metope about main blackboard, be slidingly fitted with secondary blackboard on the sliding rail.

2. a kind of multi-functional blackboard as claimed in claim 1 is characterized in that: described secondary blackboard be about two.

3. a kind of multi-functional blackboard as claimed in claim 1 is characterized in that: described secondary blackboard upper edge is provided with the hook that is used to hang small blackboard.

4. a kind of multi-functional blackboard as claimed in claim 1 is characterized in that: also be equipped with dust catcher, dust catcher connects dust box through tube connector.

5. a kind of multi-functional blackboard as claimed in claim 1 is characterized in that: described dust box bottom is equipped with pressure sensor, detects the dust box internal pressure, and the alarm signal that produces on the signal controlling dust box is lighted.