CN203648888U

CN203648888U - Blackboard eraser dust collection device

Info

Publication number: CN203648888U
Application number: CN201320839403.6U
Authority: CN
Inventors: 周晶
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-06-18
Anticipated expiration: 2023-12-10

Abstract

The utility model discloses a blackboard eraser dust collection device, and belongs to classroom teaching aids. The device comprises a cuboid container, a motor, a fixed pulley, a power supply, and a first drawer arranged at the bottom of the cuboid container, wherein both the motor and the fixed pulley are arranged above the first drawer; a belt is arranged between the motor and the fixed pulley; multiple bristles are arranged on the surface of the belt; an opening is formed in the top of the cuboid container; a micro switch is also arranged on the inner side of the cuboid container; the motor is connected with the power supply through the normally open contact of the micro switch. The device can effective remove chalk dust on a blackboard eraser, can also collect the chalk dust into the first drawer, and alleviates the working strength of teachers.

Description

A kind of chalk dust removing means for eraser

Technical field

The utility model relates to a kind of chalk dust removing means for eraser, belongs to classroom instruction apparatus.

Background technology

Chalk and blackboard eraser are the conventional educational aids of teacher.Blackboard eraser has been used of a specified duration can carry a lot of chalk dusts, and in order to remove chalk dust, teacher usually can hold blackboard eraser and pat on dais, and this method not only wastes time and energy, but also can affect the air in classroom.In addition, the chalk that teacher extracts from chalk holder also can carry chalk dust, and therefore, a lot of teacher's customs are held chalk and knocked on dais, and this also can affect the air in classroom.

Utility model content

The utility model, for the problem in background technology, proposes a kind of chalk dust removing means for eraser.

The utility model, for overcoming the above problems, adopts following technical scheme:

A kind of chalk dust removing means for eraser, comprises cuboid container, motor, fixed pulley, power supply and is located at the first drawer of cuboid container bottom; Described motor and fixed pulley are all located at the top of the first drawer, between motor and fixed pulley, are provided with belt; The surface of described belt is provided with many bristles; The top of described cuboid container is opening, and the inner side of cuboid container is also provided with a microswitch; Described motor is connected with power supply by the normally opened contact of microswitch.

As further prioritization scheme of the present utility model, described cuboid container sidepiece is provided with a chalk holder, and the bottom surface of chalk holder is provided with many through holes; Below chalk holder, be also provided with the second drawer.

Technique effect:

1, the utility model can effectively be removed the chalk dust on blackboard eraser, and chalk dust can be concentrated in the first drawer, has alleviated teacher's working strength.

2, the second drawer of the present utility model can get up the chalk ash collection in chalk holder, is convenient to chalk dust to concentrate and process.

Brief description of the drawings

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

Fig. 2 is state diagram when blackboard eraser is put into cuboid container.

Label title in Fig. 1, Fig. 2: 1, cuboid container; 2, motor; 3, fixed pulley; 4, belt; 5, bristle; 6, the first drawer; 7, microswitch; 8, chalk holder; 9, through hole; 10, the second drawer; 11, chalk; 12, blackboard eraser.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical solution of the utility model is done in further detail and is introduced:

Structure of the present utility model as shown in Figure 1, comprises cuboid container 1, motor 2, fixed pulley 3, power supply and is located at the first drawer 6 of cuboid container 1 bottom; Described motor 2 and fixed pulley 3 are all located at the top of the first drawer 6, between motor 2 and fixed pulley 3, are provided with belt 4; The surface of described belt 4 is provided with many bristles 5; The top of described cuboid container 1 is opening, and the inner side of cuboid container 1 is also provided with a microswitch 7; Described motor 2 is connected with power supply by the normally opened contact of microswitch 7.

Described cuboid container 1 sidepiece is provided with a chalk holder 8, and the bottom surface of chalk holder 8 is provided with many through holes 9; Below chalk holder 8, be also provided with the second drawer 10.At ordinary times, teacher can be placed on chalk 11 in chalk holder 8, and the chalk dust dropping from chalk 11 can be entered in the second drawer 10 by through hole 9, and teacher only needs regularly the second drawer 10 to be cleared up, and just can effectively reduce the chalk dust in chalk holder 8.

The width of described belt 4 is identical with the width of blackboard eraser 12; Described motor 2 adopts small-sized DC brushless motor; Described microswitch 7 adopts the SS-5GL2 of Omron Corp; Described power acquisition alkaline battery.

While needing dedusting, blackboard eraser 12 is put into from the open top of cuboid container 1, and the wiping face of blackboard eraser 12 is touched to the bristle 5 (as shown in Figure 2) on belt 4, now, the sidewall of blackboard eraser 12 can be pressed the button of microswitch 7, the normally opened contact closure of microswitch 7, after motor 2 energisings, start to rotate, meanwhile, belt 4 not stall under the drive of motor 2 is moving, and the bristle 5 on belt 4 is constantly removed the chalk dust on blackboard eraser 12 take in the first drawer 6.

Claims

1. a chalk dust removing means for eraser, is characterized in that: comprise cuboid container (1), motor (2), fixed pulley (3), power supply and be located at first drawer (6) of cuboid container (1) bottom; Described motor (2) and fixed pulley (3) are all located at the top of the first drawer (6), between motor (2) and fixed pulley (3), are provided with belt (4); The surface of described belt (4) is provided with many bristles (5); The top of described cuboid container (1) is opening, and the inner side of cuboid container (1) is also provided with a microswitch (7); Described motor (2) is connected with power supply by the normally opened contact of microswitch (7).

2. a kind of chalk dust removing means for eraser according to claim 1, is characterized in that: described cuboid container (1) sidepiece is provided with a chalk holder (8), and the bottom surface of chalk holder (8) is provided with many through holes (9); Also be provided with the second drawer (10) in the below of chalk holder (8).