CN2391750Y - Electric suction wiper for blackboard - Google Patents

Abstract

The utility model discloses an electric dust suction blackboard eraser, which is composed of brush wiping sheets and a dust suction device., wherein, a dust suction chamber, a dust holding chamber, a motor chamber and an exhaust and heat radiation chamber are arranged in the dust suction device. Dust-proof filtering screens are arranged between the dust suction chamber and the motor chamber and between the motor chamber and the exhaust and heat radiation chamber, and dust suction holes are arranged on the brush wiping sheets which are clamped on the dust suction device. The brush wiping sheets can be replaced. The utility model uses two layers to filter, and the dust suction effect is good. The utility model is convenient for cleaning dust in a concentrating mode, and the use is convenient. The utility model is suitable for any occasions with power supplies, and is a teaching aid which has popularizing values.

Description

Electric dust absorption blackboard eraser

The utility model relates to a kind of blackboard eraser, especially a kind of electric dust absorption blackboard eraser.

The existing teaching of China mainly is a hand with blackboard eraser at present, and dust from flying during wiping makes a big impact to the teacher of the work of being engaged in teaching for a long time and student's health of growing up, and pollutes classroom environment.Someone invents a kind of automatic dust-absorbing blackboard brush, it is to be provided with track on blackboard, blackboard eraser moves back and forth along track chalk writing is wiped, simultaneously dust is sucked the blackboard brush device, and the collected air separation that contains dust come out, this blackboard brush automaticity height, minimizing people's the amount of labour is a kind of wiping arrangement of more satisfactoryization, but this blackboard brush cost is higher, trouble is installed,, then can not works in case have a power failure, and use occasion is restricted, for the place of some teaching condition differences, then inapplicable, promote the use of at present and be not very desirable.

The purpose of this utility model is to provide a kind of electric dust absorption blackboard eraser, and this blackboard eraser sucks dust in the blackboard eraser in manual wipping, it is concentrated to clean out then, does not pollute the environment.

Structure of the present utility model realizes that in the following manner it comprises hairbrush wiping sheet, motor, impeller, shell; One motor cavity is arranged in the shell, motor is positioned at motor cavity, be fixed on the shell, impeller is installed on the motor, wipes at hairbrush to also have a vacuum chamber between sheet and the motor cavity, have one to hold the dirt chamber under the vacuum chamber, vacuum chamber communicates with holding the dirt chamber, and motor cavity also has exhaust heat radiation chamber down, and the exhaust louvre is arranged on the chamber, between motor cavity and vacuum chamber and the exhaust heat radiation chamber anti-dust filter mesh is arranged, hairbrush is wiped sheet and is provided with air suction opening; Hairbrush wipes that sheet is snap-in to be installed on the shell, and motor cavity dispels the heat with exhaust, and Air Filter is that drawing and pulling type is installed on the shell between the chamber; Angle is an acute angle between anti-dust filter mesh and the hairbrush wiping sheet.

After adopting this structure, solve the problem of dust from flying, created the academic environment of a cleaning to teachers and students, even have a power failure, also can use, and volume be little as common blackboard eraser, easy to use, be fit to any occasion that power supply is arranged, be a kind of teaching aid that is worthy to be popularized.

Be described in further details below in conjunction with drawings and the specific embodiments.

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation that the utility model hairbrush is wiped sheet;

Fig. 3 is the side view of Fig. 2;

As seen from Figure 1, whole blackboard eraser divides hairbrush to wipe sheet 1 and dust exhaust apparatus part, hairbrush is wiped the front end that sheet 1 is installed in shell 2, front end has liner plate 13, and the marginal belt draw-in groove of liner plate 13, hairbrush are stuck in the liner plate 13, can change, dust exhaust apparatus partly comprises: vacuum chamber 3, one hold dirt chamber 12, a motor cavity 7 and an exhaust heat radiation chamber 10, and motor 6 is installed in the motor cavity 7, is fixed on the shell 2 by screw; Impeller 5 is directly installed on the axle of motor 6, and wiping between sheet 1 and the motor cavity 7 at hairbrush is vacuum chamber 3, is to hold dirt chamber 12 below the vacuum chamber 3, and the two communicates, and holding the dirt chamber has a rubber stopper 11 for 12 times, and rubber stopper 11 can be pulled up; Between vacuum chamber 3 and the motor cavity 7 anti-dust filter mesh 4 is arranged, prevent that dust from entering in the motor 6, between motor cavity 7 and exhaust heat radiation chamber 10, also has an anti-dust filter mesh 8, it is dustproof to carry out secondary, and anti-dust filter mesh 4 should have constant slope, dust can be slipped to along screen pack 4 hold in the dirt chamber 12, anti-dust filter mesh 8 is a drawing and pulling type, can regularly extract cleaning out, there are several louvres 9 in exhaust heat radiation chamber 10, and power line and safeties can be installed in the exhaust heat radiation chamber 10 and join with motor; One switch (being cutd open part among the figure) is installed in the side of shell 2, and there is a hook 18 on the top, and the time spent does not hang on the wall; Its hairbrush wiping sheet 1 is made up of mane or felt 16, rubber shroud 14 and wiping sheet main body 15, is provided with several air suction openings 17 on wiping sheet main body 15, and the corresponding sheet main body 15 of wiping has identical air suction opening 17 on liner plate 13, and dust is sucked in the vacuum chamber 3.

During use, turn on the power switch, the beginning wiping, because the high speed of motor rotation, air in the vacuum chamber 3 is found time rapidly, form negative pressure, sucked rapidly in the vacuum chamber 3 under the externally atmospheric effect of dust, fall on the anti-dust filter mesh 4, concentrate also landing to enter and hold in the dirt chamber 12, low amounts of dust enters in the motor cavity 7 by anti-dust filter mesh 4 and is blocked by second layer anti-dust filter mesh 8, and air is discharged along the louvre 9 in the exhaust heat radiation chamber 10, dust in holding dirt chamber 12 is concentrated more for a long time, pulls up rubber stopper 11, and dust is poured out, and insertion gets final product after cleaning anti-dust filter mesh 8 extractions totally, hairbrush is wiped sheet 1 through using the back replaceable, and former wiping sheet is taken down, and gets final product newly wiping in the draw-in groove that sheet snaps in liner plate 13.

Claims (3)

1, a kind of electric dust absorption blackboard eraser comprises hairbrush wiping sheet (1), motor (6), impeller (5), shell (2); One motor cavity (7) is arranged in the shell (2), and motor (6) is positioned at motor cavity (7), is fixed on the shell (2), and impeller (5) is installed on the motor (6); It is characterized in that: between hairbrush wiping sheet (1) and motor cavity (7), also have a vacuum chamber (3), have one to hold dirt chamber (12) under the vacuum chamber (3), vacuum chamber (3) communicates with appearance dirt chamber (12), motor cavity (7) also has exhaust heat radiation chamber (10) down, louvre (9) is arranged in the chamber, between motor cavity (7) and vacuum chamber (3) and the exhaust heat radiation chamber (10) anti-dust filter mesh (4) and (8) are arranged, hairbrush is wiped sheet (1) and is provided with air suction opening (17).

2, a kind of electric dust absorption blackboard eraser according to claim 1 is characterized in that: hairbrush is wiped the snap-in front end that is installed in shell (2) of sheet (1), and anti-dust filter mesh (8) is installed on the shell (2) for drawing and pulling type.

3, a kind of electric dust absorption blackboard eraser above-mentioned according to claim 1, it is characterized in that: anti-dust filter mesh (4) should have constant slope, promptly and hairbrush to wipe between the sheet (1) be an acute angle.