CN2642528Y - Dustless noiseless electric eraser - Google Patents

Abstract

The utility model has a dust wall consisting of an internal and an external layer and a middle air channel. An external wall has an air inlet hole, which can not only stop the dust from overflowing but also permit the dust to enter into a brush head, sending the dust to a dust storage box in time. When the brush head has a distance from the blackboard, the dust can also be sent to the dust storage box within a distance of 10 millimeters. The utility model has a simple structure without a shift, a gear and noise.

Description

The dustless nothing electric eraser of making an uproar

Utility model relates to dedusting denoising device, a kind of specifically automatic dedusting, has the blackboard eraser of noiseless device.

School all has been to teach with blackboard, chalk ad initio, always flies upward the full chamber of powder with the back wiping, has had a strong impact on the healthy of teachers and students, this worry is troubling people all the time, and the someone uses computer instead, magnetic board is taught, because of involving great expense, light is not soft, and is unintelligible, can not make the people satisfied.Also the someone uses motor-driven blackboard eraser instead, because of noise is arranged, too heavyly uses dumbly, and dust suction and storage is good and be eliminated.Use dust-free chalk also because of same wiping, the cost height can't tackle the problem at its root, and is abandoned equally.

The utility model purpose is to overcome original various shortcoming, the electric eraser of making an uproar for a kind of light, quick, absolute dustless nothing of people.

For reaching above purpose, the feature of utility model is uprightly to revolve the hairbrush of sweeping, and near the snail formula centrifugal wind wheel of hairbrush, spends the air channels, turning for the air admission hole and 90 that high velocity air uses, there is the dust-break wall to block the powder of throwing, after diffusing gas tank, bag dust filter, dust storage tank, cleaning air are arranged, full machine has only an axis drive job, gearless structure, the rubber ring pad is arranged again, so do not produce noise, the efficient height, dedusting is fast.

The utility model is because employing motor shaft and flexible axle and brush head axis connection are an axis, full machine gearless structure, be provided with the rubber ring pad with plate face contact position, so noiseless, its hairbrush and two air-extracting wheels are all pressed dress on this axle, thus simple in structure, light, quick, time saving and energy saving, and cost is low, durable, the normal phase need not clear up.

Description of drawings: accompanying drawing is a schematic diagram of the present utility model, also is a kind of

The schematic diagram of embodiment.

Mark in the accompanying drawing: wipe a shell 1; Flexible pipe 2; Air inlet duct 3; Wind wing 4; Retaining brush nut 5; Vertical hairbrush 6; Flexible axle 7; Switch 8; Duplex bearing 9; The centrifugal air-extracting wheel 10 of snail formula; Accent power spring 11; Fresh air inlet 12; Dust-break wall 13; Rubber washer 14; Attaching plug 15; Electric wire 16 in the flexible pipe; Pass a bridge 17; Dust storage tank 18; Bag dust filter 19; Gas tank 20 looses; Motor 21; The centrifugal air-extracting wheel 22 of body; Brush handle 23; Dust cleaning case 24; Steam vent 25; Brush head axis 26.

Embodiment: as shown in the figure, motor 21 adopts the miniature electrical machinery of ventilator of low speed, wipes a shell 1, flexible pipe 2, centrifugal wind wheel 10,22 dust cleaning cases 24 employing plastics, and brush head axis 26 is a steel part, and flexible axle 7 adopts the meter flexible axles.Flexible pipe 2 adopts the washing machine flexible pipe, and bag dust filter 19 adopts all filter screens of dust catcher.Connect power supply 15 during use, open switch 8, motor 21 rotates, and the axis of being made up of motor shaft 27, flexible axle 7, brush head axis 26 rotates simultaneously.Vertical hairbrush 6 by dress on the axis rotates, and the word on the blackboard is brushed.Centrifugal air-extracting wheel 10,22 on the axis is in company with rotating, the chalk foam is confused air be drawn in handle 23 and the flexible pipe 2 by exhausting hole 28 in the lump, then send into the gas tank 20 that looses, make the air reduction of speed and send into filter airbag 19, allow air come out by filter airbag wall and exhaust outlet 25, dust is filtered the airbag filter down.Simultaneously the air of brush 1 periphery forms high velocity airs by air admission hole 12, enter brush and dust is taken away again by air inlet duct, the carrying out that this work continues, with after close switch 8 and work and stop, dust falls into dust storage tank automatically.

Claims (5)

1, the dustless nothing electric eraser of making an uproar, one on motor is housed, two centrifugal wind wheels, four vertical hairbrush, 12 cartridge type air-filtering bags, a diffusing gas tank, a dust storage tank, wiping head has the dust-break wall, several air admission holes and 90 degree turning formula air inlet ducts are arranged on every side, the centre has the flexible pipe flexible axle to connect, live wire in the flexible pipe, logical grip switches.A complete set of equipment gearless.No driving-belt is equipped with rubber ring with the blackboard contact site.

2, according to right 1, the dustless nothing electric eraser of making an uproar has dust-break wall and several air admission holes and 90 degree turning formula air inlet ducts, and air is flow at a high speed, and dust can't be dished out.

3, according to right 1 gearless, no driving-belt has only an axis and blackboard contact site that rubber ring is arranged, so noiseless.

4, according to right 1, diffusing gas tank is arranged, 12 air-filtering bags, a dust storage tank can make dust underspeed, and air is overflowed easily.

5, according to right 1 brush 4 vertical hairbrush are arranged, so outwash very easily.The centrifugal air-extracting wheel of snail formula can in time be seen dust off at a high speed near hairbrush.