CN203666204U - Dry and wet dual-use blackboard eraser - Google Patents

Abstract

The utility model provides a dry and wet dual-use blackboard eraser which comprises a blackboard eraser body and a spraying device, wherein the spraying device is formed by a bottle body, a nozzle and a nozzle button and is arranged inside or outside the blackboard eraser body, and the blackboard eraser body is provided with a dry erasing part and a wet erasing part. Generally, the dry erasing part of the blackboard eraser body is used directly for erasing a blackboard. When air is especially dry, much dust is raised, the nozzle button of the spraying device is pressed down, water contained in the bottle body of the spraying device can be sprayed on the blackboard evenly, then the wet erasing part of the blackboard eraser body is used for erasing the blackboard, and chalk dust can be avoided. When stains exist on the blackboard, the bottle body of the spraying device is filled with cleaner, the cleaner is sprayed on the blackboard evenly, and the stains can be erased easily. The dry and wet dual-use blackboard eraser is simple in structure and convenient to use.

Description

A kind of Wet-dry blackboard eraser

Technical field

The utility model relates to teaching aid, particularly, relates to a kind of Wet-dry blackboard eraser.

Background technology

Blackboard eraser is an indispensable part in daily teaching work, although there is very large change in present teaching method, teaching aid is more and more modernization also, but blackboard writing is because of its advantage such as convenient and swift, still have its irreplaceable status and generality, the use of blackboard eraser is also still very frequent.

Common blackboard eraser has its salient feature, and volume is small and exquisite, practical and convenient, wipes clean effectively, and physical life is long etc.But its shortcoming is also clearly, usually can find that teacher or student are using in common blackboard eraser erases the board, hold blackboard eraser blackboard wiping except one, an other hand often must be covered mouth and nose.That is because can be with a large amount of airborne dusts (being mostly chalk dust) in using common blackboard eraser.Chalk dust can be numerous and confused drop on academics and students on hand and with it, the dust flying upward also can be inhaled in lung, due to the specific physical performance of chalk, this can cause very large injury to health, the pneumoconiosis and the various acute and chronic breathing problem that cause as dust, the injury of dust to eye, ear, skin, the disease that also can bring out other, the impact on air quality and on near-sighted impact etc.And, be subject to airborne dust impact be not only classmate or the teacher who erases the board, be punished for being related to and also can be affected front-seat student.The harm of airborne dust is self-evident, and what this situation was the most frequent still more occurs on classroom, and that is injured mostly is child, and harmfulness is just larger.

Utility model content

For defect of the prior art, the purpose of this utility model is to provide a kind of Wet-dry blackboard eraser, not only can reduce and avoid harm that dust causes human body and the pollution to environment, and the spot of wiping stubbornness that can be light, facilitate academics and students.

For achieving the above object, the utility model provides a kind of Wet-dry blackboard eraser, the sprayer unit that comprises blackboard eraser body and formed by bottle, nozzle, nozzle button, and the bottle of described sprayer unit is internal or external at described blackboard eraser body; Described blackboard eraser body arranges xerotripsis and wet rubbing two parts.

Preferably, the bottle of described sprayer unit is built in described blackboard eraser body, adopts integrated formed structure, or described blackboard eraser body is made to hollow as bottle.

Preferably, the bottle of described sprayer unit is placed on described blackboard eraser body, adopt integrated formed structure, or with described blackboard eraser body by being connected and fixed.

Preferably, described blackboard eraser body is provided with horizontal or longitudinal baffle plate, and blackboard eraser is divided into xerotripsis and wet rubbing two parts by this baffle plate.

Preferably, described xerotripsis part is bristle, and wet rubbing part is water-absorbing sponge.

Generally, directly use described blackboard eraser body xerotripsis part blackboard wiping; Run into air dry especially, when airborne dust is a lot of, press the nozzle button of described sprayer unit, the in-built water of described sprayer unit bottle can be sprayed on blackboard uniformly through described nozzle, use again described blackboard eraser body wet rubbing part blackboard wiping, can avoid chalk dust; If when running into blackboard and having spot, by in-built described sprayer unit bottle upper cleaning agent, be sprayed at uniformly on blackboard, can have wiped spot easily.

Compared with prior art, the utlity model has following beneficial effect:

The utility model provides a kind of Wet-dry blackboard eraser, together with being linked as with blackboard eraser by internal or external sprayer unit, xerotripsis and wet rubbing two schemes are provided, wet rubbing blackboard while conveniently needs, reduce dust to human body harm and the pollution to environment, and the spot of wiping stubbornness that can be light, facilitate academics and students.The utility model is simple in structure, practical and convenient.

Accompanying drawing explanation

By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:

Fig. 1 is the utility model side view;

Fig. 2 is view under the utility model;

Fig. 3 is the utility model top view.

In figure: 1 is blackboard eraser body, 2 is bottle, and 3 is bristle, and 4 is sponge, and 5 is baffle plate, and 6 is nozzle button, and 7 is nozzle.

The specific embodiment

Below in conjunction with specific embodiment, the utility model is elaborated.Following examples will contribute to those skilled in the art further to understand the utility model, but not limit in any form the utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection domain of the present utility model.

As Fig. 1, shown in 2,3, the utility model provides a kind of Wet-dry blackboard eraser, the sprayer unit that comprises blackboard eraser body 1 and formed by bottle 2, nozzle 7, nozzle button 6, and the bottle 2 of described sprayer unit is internal or external at described blackboard eraser body 1.

The bottle 2 of described sprayer unit is built in described blackboard eraser body 1, adopts integrated formed structure or blackboard eraser body is made to hollow as bottle.

The bottle 2 of described sprayer unit is placed on described blackboard eraser body 1, adopts integrated formed structure or is fixed together by connector (such as clip etc.) with described blackboard eraser body.

As shown in Figure 2, the rub body of described blackboard eraser body 1 divides bristle 3 and sponge 4 two parts, and centre arranges baffle plate 5 described bristle 3 and sponge 4 are separated.When xerotripsis with described bristle 3 part blackboard wipings; When wet rubbing with described sponge 4 part blackboard wipings.

Embodiment mono-:

The in-built water of described bottle 2, in needs xerotripsis, directly uses described bristle 3 blackboard wipings; In needs wet rubbing, press described nozzle button 6, water is sprayed onto blackboard from described nozzle 6, with described sponge 4 wipings, can reduce the pollution of dust.

Embodiment bis-:

The in-built cleaning agent of described bottle 2, in running into and having spot on blackboard, presses described nozzle button 6, and cleaning agent is sprayed onto blackboard from described nozzle 7, with described sponge 4 wipings, and can be easily by spot wiped clean.

Embodiment tri-:

The in-built culicifuge of described bottle 2, presses described nozzle button 6 when summer, culicifuge is ejected into blackboard from described nozzle 7, does not just have mosquito patronize with the blackboard after described sponge 4 wipings, can play the effect of mosquito repellent; Or the in-built air freshener of described bottle 2, presses described nozzle button 6 to spraying and can play the effect purifying air in classroom.

The utility model provides a kind of Wet-dry blackboard eraser, together with being linked as with blackboard eraser by internal or external sprayer unit, xerotripsis and wet rubbing two schemes are provided, not only can reduce and avoid harm that dust causes human body and the pollution to environment, and the spot of wiping stubbornness that can be light, facilitate academics and students; In built-in or external sprayer unit, install the effect that mosquito-driving liquid or air freshener can also play mosquito repellent or purify air.The utility model is simple in structure, practical and convenient.

Above specific embodiment of the utility model is described.It will be appreciated that, the utility model is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present utility model.

Claims (5)

1. a Wet-dry blackboard eraser, comprise blackboard eraser body, characterized by further comprising the sprayer unit being made up of bottle, nozzle, nozzle button, the bottle of described sprayer unit is internal or external at described blackboard eraser body, and described blackboard eraser body arranges xerotripsis and wet rubbing two parts.

2. a kind of Wet-dry blackboard eraser according to claim 1, is characterized in that, the bottle of described sprayer unit is built in described blackboard eraser body and adopts integrated formed structure or described blackboard eraser body is made to hollow as bottle.

3. a kind of Wet-dry blackboard eraser according to claim 1, it is characterized in that, the bottle of described sprayer unit is placed on described blackboard eraser body and adopts bottle and the described blackboard eraser body of integrated formed structure or described sprayer unit to be fixed together by connector.

4. according to a kind of Wet-dry blackboard eraser described in claim 1-3 any one, it is characterized in that, described blackboard eraser body is provided with horizontal or longitudinal baffle plate, and blackboard eraser is divided into xerotripsis and wet rubbing two parts by this baffle plate.

5. a kind of Wet-dry blackboard eraser according to claim 1, is characterized in that, described xerotripsis part is bristle, and wet rubbing part is water-absorbing sponge.

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