CN209336360U - A kind of blackboard eraser convenient for cleaning - Google Patents

Abstract

The utility model discloses a kind of blackboard erasers convenient for cleaning, including elastic inner core, backboard, the elastic inner core is fixed on the backboard front, it further include flannelette, the flannelette is thin cloth, the flannelette has the area for covering the elastic inner core, and the flannelette is covered on the elastic inner core, and the part beyond the elastic inner core is fixed on the backboard by elastic clip.The utility model covers elastic inner core using flannelette, and flannelette is fixed on blackboard eraser by elastic clip, and flannelette is easily installed and removes, therefore the blackboard eraser is convenient for changing clothes flannelette.

Description

A kind of blackboard eraser convenient for cleaning

Technical field:

The utility model relates to blackboard erasers, and in particular to a kind of blackboard eraser convenient for cleaning.

Background technique:

Blackboard eraser can accumulate many chalk dusts after having used long on wiping face, when erasing the board, the chalk dust meeting of accumulation It flies in the air, may be sucked by teacher and classmate, or enter in eyes, cause damages to body.Therefore, it is necessary to often to black Blackboard eraser is cleaned, it is necessary first to the chalk dust of accumulation trembled, and during shaking, chalk dust also can in the sky disorderly Fly, it is very thick due to wiping face, also it is difficult to wash with water, because being difficult to dry after washing with water, wet blackboard eraser holds for a long time Easily breed bacterium.

Utility model content:

It is difficult to clean for current blackboard eraser, is easy to cause damages to teachers and students, the utility model provides a kind of convenient for cleaning Blackboard eraser to solve the above problems.

The technical solution is that a kind of blackboard eraser convenient for cleaning, including elastic inner core, backboard, the elastic inner core are fixed On the front of the backboard, the height of the elastic inner core exceeds the front of the backboard；It further include flannelette, the flannelette is Bao Bu, the flannelette have the area for covering the elastic inner core, and the flannelette is covered on the elastic inner core, beyond described The part of elastic inner core is fixed on the backboard by elastic clip.

Its technical principle is: since conventional blackboard eraser is not easy to clean, setting elastic inner core is fixed on backboard, flannelette When being covered on elastic inner core, therefore using blackboard eraser, what is contacted with blackboard is flannelette, and elastic inner core is elastic when erasing the board, People can play the role of wiping lower chalk dust by friction after depressing blackboard eraser.The area of flannelette is more than the area of elastic inner core, The part exceeded is fixed on backboard.The mode of fixed flannelette, in this way convenient for fixing and removing flannelette, is needed by elastic clip When cleaning, flannelette is removed, can wash with water, flannelette is fixed on blackboard eraser again after drying.

Further, the elastic clip includes two clamping parts, forms crack, the crack between described two clamping parts When the elastic clip is opened greater than the thickness of the backboard, flannelette is pressed on the backboard by the clamping part, the flannelette It is attached with the elastic inner core front, the flannelette sticking position is higher by the clamping part.

Further, the contact surface of the elastic inner core and the flannelette is set as magic hasps cooperation, the flannelette Contact surface is provided with villus fiber, and the contact surface of the elastic inner core, which is provided with, has the hard of adhesive attraction with the villus fiber Matter band hooks seta.

Further, the quantity of the elastic clip is multiple.

Further, the material of the elastic inner core is foam.

Further, the material of the flannelette is polyester flannel.

Further, handle is set on the back side of the backboard.By handle, user can preferably operate blackboard eraser.

The beneficial effect of the utility model is: blackboard eraser covers elastic inner core using flannelette, and flannelette is fixed by elastic clip On blackboard eraser, flannelette is easily installed and removes, therefore the blackboard eraser is convenient for changing clothes flannelette.

Detailed description of the invention:

Fig. 1 is the schematic diagram that the utility model does not include flannelette and elastic clip；

Fig. 2 is the decomposition view of the utility model；

Fig. 3 is the schematic diagram of the utility model；

Fig. 4 is the schematic diagram of spring clip.

Marked in the figure: 1- elastic inner core, 2- backboard, 3- handle, 4- elastic clip, 5- flannelette, 41- clamping part, 42- crack.

Specific embodiment:

Embodiment one:

Remove the schematic diagram of the blackboard eraser of elastic clip 4 and flannelette 5 for the present embodiment as shown in Figure 1, wherein elastic inner core 1 is solid It being scheduled on 2 front of backboard, the thickness of elastic inner core 1 exceeds the front of backboard 2, if it is traditional blackboard eraser, then elastic inner core 1 Just at wiping face, but such design will lead to blackboard eraser and be not easy to clean.As shown in Fig. 2, the present embodiment uses one piece of flannelette 5 As the material for generating frictional force with blackboard, which can be used to inhale the material of ash and be made up of raising, such as make The flannelette made of terylene.Flannelette 5 is covered on elastic inner core 1 first, and the area of flannelette 5 is greater than the area of elastic inner core 1, is surpassed The flannelette 5 of elastic inner core 1 is sandwiched on backboard 2 by elastic clip 4 out.In the present embodiment, elastic clip 4 has 2 opposite folders The crack 42 between 41,2, portion clamping part 41 is held when elastic clip 4 is opened greater than the thickness of backboard 2, when flannelette 5 is attached to bullet Property inner core 1 on after, flannelette 5 is just clamped using elastic clip 4 beyond the part of elastic inner core 1.One clamping part of elastic clip 4 41 flannelettes that will exceed are pressed on backboard 2, another clamping part 41 is clamped in the back side of backboard.The bullet of 4 the present embodiment of elastic clip Property 4 quantity of folder be 4, the shape of backboard 2 and elastic inner core 1 is all strip, and the flannelette 5 beyond elastic inner core 1 is by 4 elasticity Folder 4 is clamped in 4 sides of strip backboard 2 respectively, so that flannelette 5 is fixed more stable.But when needing to remove flannelette 5, then Elastic clip 4 is taken off.

Embodiment two:

After being clamped flannelette 5 by elastic clip 4, flannelette 5 is equivalent to wiping face, when flannelette 5 is attached on blackboard by people, And moved on blackboard, so that it may complete the movement to erase the board.In order to prevent because flannelette 5 is not tauted and causes to erase the board When flannelette 5 wrinkle.Also set up 1 contact surface of flannelette 5 and elastic inner core matches the cooperation for being combined into magic hasps, the contact surface of flannelette 5 It is villus fiber, the contact surface of elastic inner core 1 is provided with hard band and hooks seta.It is bonded flannelette 5 and elastic inner core 1 More closely, it is not easy to be layered both when erasing the board.

Embodiment three:

In the embodiment, elastic inner core 1 is fixed on backboard 2 by dismountable mode, the material of elastic inner core 1 For sponge, the sponge of the present embodiment has preferable elasticity and water imbibition.Elastic inner core 1 is suitably dipped into water, when in use, Blackboard eraser is pressed, elastic inner core 1 can squeeze the water out after being pressurized, can be relatively more wet when erasing the board in this way, prevent chalk Ash is flown into the air.

Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of blackboard eraser convenient for cleaning, which is characterized in that including elastic inner core (1), backboard (2), the elastic inner core (1) It is fixed on the front of the backboard (2), the height of the elastic inner core (1) exceeds the front of the backboard (2)；It further include suede Cloth (5), the flannelette (5) are thin cloth, and the flannelette (5) has the area for covering the elastic inner core (1), the flannelette (5) It is covered on the elastic inner core (1), the part beyond the elastic inner core (1) is fixed on the backboard by elastic clip (4) (2) on；The elastic clip (4) includes two clamping parts (41), forms crack, the crack between described two clamping parts (41) (42) it is greater than the thickness of the backboard (2) when the elastic clip (4) are opened, flannelette (5) is pressed in institute by the clamping part (41) It states on backboard (2), the flannelette (5) and the elastic inner core (1) front attach, and flannelette (5) sticking position is higher by described Clamping part (41)；The contact surface of the elastic inner core (1) and the flannelette (5) is set as magic hasps cooperation, the flannelette (5) Contact surface be provided with villus fiber, the contact surface of the elastic inner core (1), which is provided with, with the villus fiber there is adherency to make Hard band hooks seta.

2. a kind of blackboard eraser convenient for cleaning according to claim 1, which is characterized in that the quantity of the elastic clip (4) It is multiple.

3. a kind of blackboard eraser convenient for cleaning according to claim 1, which is characterized in that the material of the elastic inner core (1) Matter is foam.

4. a kind of blackboard eraser convenient for cleaning according to claim 1, which is characterized in that the material of the flannelette (5) is Polyester flannel.

5. a kind of blackboard eraser convenient for cleaning according to claim 1, which is characterized in that on the back side of the backboard (2) It is arranged handle (3).