CN202463376U

CN202463376U - Dust-absorption blackboard eraser

Info

Publication number: CN202463376U
Application number: CN2012200497608U
Authority: CN
Inventors: 周致
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-16
Filing date: 2012-02-16
Publication date: 2012-10-03
Anticipated expiration: 2022-02-16

Abstract

The utility model discloses a dust-absorption blackboard eraser. A shell is divided into a dust-collection cavity, a motor cavity, a dust-absorption cavity and a battery cavity, wherein the motor cavity is located right in the middle of the shell and is located between the dust-collection cavity and the battery cavity; a dust-absorption motor is fixedly arranged in the motor cavity; an output shaft of the dust-absorption motor extends into the dust-absorption cavity and is connected with dust-absorption blades; the bottom face of the dust-collection cavity is provided with a shell bottom plate; an airflow guide plate is arranged between the dust-collection cavity and the dust-absorption cavity; a plurality of parallel hairbrushes distributed at intervals are fixedly bonded on the lower surface of the shell bottom plate by glue; each hairbrush is in a strip shape and is even in thickness; the shell bottom plate between each two hairbrushes is provided with a plurality of dust-absorption holes; the dust-absorption holes are evenly distributed at intervals in along the length direction of the corresponding hairbrush; a battery is arranged in the battery cavity; the battery is connected in series with a power switch; the power switch is connected in series with the dust-absorption motor; the power switch is fixedly arranged on the upper surface of the shell; and the outer wall of the dust-collection cavity is provided with an outlet. The dust-absorption blackboard eraser disclosed by the utility model not only can be used for erasing letters written with chalk but also can be used for efficiently absorbing dust, and is convenient in cleaning, simple in structure and high in dust-absorption efficiency.

Description

A kind of dust absorption blackboard eraser

Technical field

The utility model relates to a kind of school supply and stationery, specifically is a kind of blackboard eraser that is used to wipe letter written with chalk on the blackboard.

Background technology

At present, traditional educational aid such as blackboard, chalk still is used in a lot of schools.The structure of common blackboard eraser is the felt that on a wiping board, bonds; Pass through the letter written with chalk on the felt blackboard wiping during use; When the wiping letter written with chalk, chalk dust also drops from felt simultaneously, flies upward in the air around; Severe contamination teaching environment, the health of Faculty and Students is produced adverse influence.

Summary of the invention

In order to solve because of using chalk to cause the pollution problem on the classroom, the utility model proposes a kind of dust absorption blackboard eraser, and when the wiping letter written with chalk, chalk dust is inhaled into blackboard eraser simultaneously, avoids the chalk ash pollution environment.

The technical scheme that the utility model adopts is: comprise a shell; This shell is separated into these four cavity volumes of dust-collecting cavity, motor cavity, vacuum chamber and battery cavities; Motor cavity is positioned at the middle of shell, and between dust-collecting cavity and battery cavities, is fixed with dust sucting motor in the motor cavity; The output shaft of dust sucting motor stretches in the vacuum chamber and connects the dust suction blade, and the bottom surface of vacuum chamber is a shell bottom plate; Between dust-collecting cavity and vacuum chamber, be provided with the air-flow guide plate; Fix a plurality of hairbrush parallel and spaced apart of bonding with glue on the lower surface of shell bottom plate; Each hairbrush is strip and even thickness; On the shell bottom plate between per two hairbrush, have a plurality of air suction openings, a plurality of air suction openings along on the length direction of hairbrush uniformly at intervals; Be provided with battery in the battery cavities, battery serial connection power switch, power switch serial connection dust sucting motor, power switch fixedly is located on the upper surface of shell; The dust-collecting cavity outer wall is provided with outlet.

After the utility model adopts technique scheme, have following beneficial effect: the utility model has improved the structure that traditional blackboard is wiped, and adopts aerodynamic principle; Both letter written with chalk can be wiped clean better, and dust and easy cleaning can be absorbed more efficiently again; Thereby keep the neat and tidy in classroom, improve the working and learning environment of Faculty and Students better, simple in structure; Dust collection efficiency is high, and cost is lower.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the upward view of Fig. 1;

Among the figure: 1. hairbrush; 2. shell bottom plate; 3. air suction opening; 4. dust-collecting cavity; 5. air-flow guide plate; 6. dust suction blade, 7. dust sucting motor; 8. motor cavity; 9. vacuum chamber; 10. battery cavities; 11. power switch; 12. battery.

The specific embodiment

Referring to Fig. 1, the utility model comprises a shell, and this shell is separated into four cavity volumes, is respectively dust-collecting cavity 4, motor cavity 8, vacuum chamber 9 and battery cavities 10, and wherein, motor cavity 8 is positioned at the middle of shell, and between dust-collecting cavity 4 and battery cavities 10.Fixed installation dust sucting motor 7 in motor cavity 8, the support with dust sucting motor 7 during installation is fixedly connected on the shell wall of motor cavity 8 with screw.The output shaft of dust sucting motor 7 stretches in the vacuum chamber 9, and the output shaft of dust sucting motor 7 connection dust suction blade 6, and dust suction blade 6 is arranged in vacuum chamber 9, and the bottom surface of vacuum chamber 9 promptly is a shell bottom plate 2.Between dust-collecting cavity 4 and vacuum chamber 9, air-flow guide plate 5 is arranged, dust-collecting cavity 4 and vacuum chamber 9 are communicated through air-flow guide plate 5.

Like Fig. 2; On the lower surface of shell bottom plate 2, fix a plurality of hairbrush parallel and spaced apart 1 of bonding with glue; Each hairbrush 1 is strip and even thickness, on the shell bottom plate 2 between per two hairbrush 1, has air suction opening 3, air suction opening 3 along on the length direction of hairbrush 1 uniformly at intervals.

Battery 12 is set in battery cavities 10, battery 12 serial connection power switches 11, power switch 11 is fixed on the upper surface of shell, is convenient to manual operation, power switch 11 serial connection dust sucting motors 7.

The utility model is held shell and just can be pressed power switch 11 in use, for dust sucting motor 7 power supply is provided by battery 12; Dust sucting motor 7 drives 6 work of dust suction blade; Dust suction blade 6 makes in the vacuum chamber 9 when suction and produces negative pressure, and air-flow guide plate 5 is opened, and the chalk dust that hairbrush 1 was brushed gets in the dust-collecting cavity 4 behind air suction opening 3, vacuum chamber 9 gentle conductance plates 5 successively; Thereby the completion dust suction can suck 90% dust in the dust-collecting cavity 4.When reality is used, on dust-collecting cavity 4 outer walls, also have outlet, be convenient to the dust in the dust-collecting cavity 4 is poured out.

Claims

1. dust absorption blackboard eraser; Comprise a shell; It is characterized in that: this shell is separated into these four cavity volumes of dust-collecting cavity (4), motor cavity (8), vacuum chamber (9) and battery cavities (10); Motor cavity (8) is positioned at the middle of shell, and is positioned between dust-collecting cavity (4) and the battery cavities (10), is fixed with dust sucting motor (7) in the motor cavity (8); The output shaft of dust sucting motor (7) stretches in the vacuum chamber (9) and connects dust suction blade (6), and the bottom surface of vacuum chamber (9) is shell bottom plate (2); Between dust-collecting cavity (4) and vacuum chamber (9), be provided with air-flow guide plate (5); Fix bonding a plurality of hairbrush parallel and spaced apart (1) with glue on the lower surface of shell bottom plate (2); Each hairbrush (1) is strip and even thickness; On the shell bottom plate (2) between per two hairbrush (1), have a plurality of air suction openings (3), a plurality of air suction openings (3) along on the length direction of hairbrush (1) uniformly at intervals; Be provided with battery (12) in the battery cavities (10), battery (12) serial connection power switch (11), power switch (11) serial connection dust sucting motor (7), power switch (11) fixedly is located on the upper surface of shell; Dust-collecting cavity (4) outer wall is provided with outlet.