CN201283731Y

CN201283731Y - Dustless blackboard eraser

Info

Publication number: CN201283731Y
Application number: CNU2008201367041U
Authority: CN
Inventors: 邸彤
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-16
Filing date: 2008-09-16
Publication date: 2009-08-05
Anticipated expiration: 2018-09-16

Abstract

The utility model provides a dust-free board wiper, comprising a main body and a brush part conjugated with the main body, wherein the inner surface of the main body is concave, and a baffle is fixed on the top of the concave surface, thus a hollow cavity is formed between the baffle and the main body and the brush part is integrated with the main body by being conjugated with the baffle and a plurality holes are distributed on the baffle to make the water circulating between the brush part and the hollow cavity. The dust-free board wiper has features of no dust, cleaner blackboard, no large water mark on the blackboard, clean hand.

Description

Dustless eraser

Technical field

The utility model relates to a kind of Dustless eraser.

Background technology

From primary school or even kindergarten, in the classroom of middle school or even university,, still there are a large amount of situations of using blackboard and chalk although audio-visual education programme is quite universal.Owing to there is not suitable blackboard eraser, make the dust of chalk in the classroom, become a kind of primary pollution source, the health of Faculty and Students has been caused great injury.

Although designed many novel blackboard erasers, for example utilize static to absorb the blackboard eraser etc. of dust, these blackboard erasers are because manufacturing cost is too high, perhaps because dust removing effects is bad, or is not durable and can't be widely used.

The utility model content

In order to address the above problem, the utility model proposes a kind of new Dustless eraser, the adsorptivity that it utilizes materials such as the coherency of water and felt, foamed plastics is implemented in the effect that absorbs dust when erasing the board.

According to an aspect of the present utility model, a kind of Dustless eraser is provided, comprise main part and the brush body part that is bonded together with this main part, the inner surface of this main part is a spill, be fixed with baffle plate on concave surface top, form a cavity thus between baffle plate and main part, this brush body part engages by being bonded on this baffle plate and with this main part and is one, and be distributed with a plurality of apertures on this baffle plate, make water can between brush body part and this cavity, keep circulation.

According to another aspect of the present utility model, also comprise the shirt rim part, be fixed on this main part, and around this brush body part.

According to another aspect of the present utility model, the material of this brush body part comprises one or more in felt, the foamed plastics.

Utilization is according to Dustless eraser of the present utility model, blackboard eraser can be got totallyer, can not stay big water mark on blackboard, there is not dust to produce simultaneously, user's the hand of also can not making dirty is very easy to vast Faculty and Students, and has eliminated and endangered their healthy hidden danger.

Description of drawings

The utility model can wherein use same reference numerals to represent identical parts in institute's drawings attached by being better understood with reference to the description of hereinafter being carried out in conjunction with the accompanying drawings, in the accompanying drawings:

Fig. 1 is the bottom view according to Dustless eraser of the present utility model;

Fig. 2 is the side cross section view according to Dustless eraser of the present utility model; And

Fig. 3 is the view according to the structure of Dustless eraser main part of the present utility model.

The specific embodiment

For fear of having blured the present invention, only show in an embodiment and the closely-related structure of the scheme of the embodiment of the invention, and omitted other details little with relation of the present invention because of unnecessary details.

Fig. 1 shows the bottom view according to Dustless eraser of the present utility model.

As shown in Figure 1, Dustless eraser of the present utility model comprises: main part 100; Be fixed on the shirt rim part 102 on the main part 100; And the brush body part 104 that is used for contacting and wiping the letter written with chalk on the blackboard with the blackboard surface.

Main part 100 is held by the user's, contact with the surface of brush body part 104 and blackboard (not shown) surface, by the user up and down or about move and carry out wiping, wipe the writing on the blackboard.User's finger can ride against the outside of shirt rim part 102, touches brush body part and makes dirty with the finger that prevents the user.

Brush body part 104 can use the material of felts, also can use materials such as foamed plastics, and the size of its length and width direction can be slightly larger than the size of the length and width direction of shirt rim part 102, and relies on its power that expands and produced, in the fixing shirt rim part 102.

Fig. 2 shows according to the side cross section view of Dustless eraser of the present utility model along the P-P direction, and Fig. 3 shows the front view according to the structure of the main part of Dustless eraser of the present utility model.

As shown in Figure 2, the mid portion of main part 100 is a spill, and it also comprises baffle plate 108, and top and the main part 100 of baffle plate 108 in concave surface is fixed together, and forms a cavity 106 in the middle of making their.The size of formed cavity 106 is changeable, as long as suitably.Be distributed with a plurality of apertures 110 (as shown in Figure 3) on the baffle plate 108, can move the water to flow into cavity 106 or water is flowed out from cavity 106 by each aperture.That is, water can keep circulation between brush body part 103 and cavity 106.

Brush body part 104 also can stick on the baffle plate 108 of main part 100 by using binders such as glue, but binder can only be applied to the part that does not have aperture 110, in order to avoid aperture 110 is blocked.

In sum, comprise main part 100 and the brush body part 104 that is bonded together with main part 100 according to blackboard eraser of the present utility model, the inner surface of main part 100 is a spill, be fixed with baffle plate 108 on concave surface top, between baffle plate 108 and main part 100, form a cavity 106 thus, brush body part 104 engages by being bonded on the baffle plate 108 and with main part 100 and is one, and be distributed with a plurality of apertures 110 on the baffle plate 108, make water can between brush body part 104 and cavity 106, keep circulation.

Also comprise shirt rim part 102 according to blackboard eraser of the present utility model, it is fixed on the main part 100, and be centered around brush body part 104 around.And, comprise in felt, the foamed plastics one or more according to the material of the brush body part 104 of blackboard eraser of the present utility model.

In use, the user can water soaks the brush body part 104 of blackboard eraser a little, with the hand extruding, the water in the brush body part 104 is pushed away then.When brush body part 104 was extruded, most of water can be extruded and flow away, and the water of fraction can flow in the cavity 106 by aperture 110, and was stored in the cavity 106.

When the user uses the blackboard eraser blackboard wiping, because baffle plate 108 quality are harder, not yielding, thereby can keep the water in the cavity 106 can not be extruded because brush body part 104 is extruded distortion, like this, can not influence on blackboard and write staying too many water mark on the blackboard.

Can preserve moisture for a long time in the cavity 106, these moisture are by inner tiny aperture such as felt, foamed plastics, utilize siphonage and are present in the surface of brush body part 104.Like this, can preserve suitable moisture on the surface of brush body part 104 always.With the blackboard eraser blackboard wiping time, the dust of being wiped on the blackboard is condensed by the moisture on brush body part 104 surfaces, and utilizes the suction-operated of materials such as felt, foamed plastics and be stored in the aperture of brush body inside, can not fly around.Like this, can keep not having in the process of wiping dust to produce, also can keep the cleaning of user's hand simultaneously.

When by making blackboard eraser cross when dirty repeatedly, blackboard eraser can be washed with clear water, with the light extruding of have gentle hands and soft, can remove brush body surface and inner dust simultaneously, and in cavity 106, replenish suitable moisture.Like this, just can use repeatedly according to blackboard eraser of the present utility model.

Though below describe embodiment of the present utility model in conjunction with the accompanying drawings in detail, but be understood that, above-described embodiment only is used to illustrate example of the present utility model, do not constitute restriction of the present utility model, therefore can make various modifications and changes and not deviate from essence of the present utility model and scope above-mentioned embodiment.

Claims

1. a blackboard eraser comprises main part and the brush body part that is bonded together with this main part, it is characterized in that,

The inner surface of this main part is a spill, be fixed with baffle plate on concave surface top, between baffle plate and main part, form a cavity thus, this brush body part engages by being bonded on this baffle plate and with this main part and is one, the a plurality of apertures of distribution on this baffle plate make water can keep circulation between brush body part and this cavity.

2. blackboard eraser as claimed in claim 1 is characterized in that, also comprises the shirt rim part, be fixed on this main part, and be centered around this brush body part around.