CN2240444Y - Dust-suction eraser for blackboard - Google Patents

Abstract

The utility model discloses a dust-sucking eraser for a blackboard, which comprises a bottom box (1) with brush bristles (10) and an upper cover (2). The utility model is characterized in that the bottom box (1) is provided with a dust-sucking hole (9), a dust-collecting bag (12) is arranged in an inner cavity (11) of the bottom box (1), a DC electric motor (5) with a blade (7) is arranged in the upper cover (2), the lower part of the blade (7) is provided with a board (13) with multiple holes, and the upper cover (2) is provided with an air-exhausting hole (6), a dry battery box (3) and an external electric supply socket (8). Dust is sucked by the utility model when the blackboard is erased by using the utility model which is favorable to environmental sanitation and human health. The utility model has the characteristics of simple structure and convenient use.

Description

Dust-absorbing blackboard brush

The utility model relates to blackboard brush, especially can suck the blackboard brush of chalk dust.

The blackboard brush that generally uses in the prior art does not all have the dust suction effect, dust from flying when erasing the board, and unfavorable teachers and students are healthy.Someone once designed the blackboard brush at above-mentioned defective, and not only complex structure, and result of use is bad, so far practicability not.

The purpose of this utility model is, designs a kind of dust-absorbing blackboard brush, can when erasing the board dust such as chalk dust be sucked, and avoiding its harm to health, and has characteristics simple in structure, easy to use, that pick-up performance is good.

The technical solution of the utility model is, it has the end box of band bristle and the loam cake that engages with this end box, its design feature is, there are air suction opening and end box inner chamber to be equipped with the control of dust capsule on the base plate of box of the described end, on the support of motor of described loam cake dc motor is housed, on this motor reel flabellum is housed, and the flabellum below there is porous plate to be contained on the upper cover body, upper cover top surface has steam vent, is equipped with the dry cell box and the external electric supply socket that are connected with described motor through power switch in upper cover body.

Make below in conjunction with accompanying drawing and to further specify.

Description of drawings: accompanying drawing is actual (analysing and observe) structure.In the drawings:

1-end box 4-support of motor

2-loam cake, 5-dc motor

3-dry cell box, 6-steam vent

7-flabellum, 11-inner chamber

9-air suction opening, 13-porous plate.

10-bristle,

By accompanying drawing as can be known, the utility model has the end box (1) of band bristle (10) and with this end box (1) The loam cake (2) that engages, its design feature is that air suction opening (9) and the end are arranged on the base plate of end box (1) Be equipped with control of dust capsule (12) in the inner chamber (11) of box (1), cloth or the suede of the available band hair of this capsule (12) The common used material of cloth and prior art is made, and is equipped with straight on the support of motor (4) of loam cake (2) Stream motor (5) is equipped with flabellum (7) on the axle of this motor (5), there is porous plate (13) its below Be installed on the lid of loam cake (2), loam cake (2) end face has steam vent (6), in loam cake (2) Be equipped with the casing for dry batteries (3) and the external electric supply socket that are communicated with described motor (5) through power switch (8). Casing for dry batteries (3) and described socket (8) and described power switch all adopt prior art Common structure and connected mode, and itself and loam cake (2) can be made of one.

Design principle of the present utility model is, when plugged (is loaded onto dry cell or plugged external Attaching plug---and external power supply is corresponding dc rectification power) after, motor (5) drives Flabellum (7) rotation produces by the brush end (bristle place one side) to (one of steam vent (6) place, brush top Side) air flow makes the dust at bristle place through the control of dust capsule of air suction opening (9) suction inner chamber (11) (12) in, the adsorbable dust of cloth matter control of dust capsule (12) of band hair, porous plate (13) form air-flow Path and stop the unlikely discharge of dust; Open loam cake (2), take out control of dust capsule (12) and can remove it In dust.

As known from the above, the utility model is a kind of dust-absorbing blackboard brush, can be effective when erasing the board The ground dust adsorption is conducive to impart knowledge to students or other health when using, simple in structure, practical, Easy to use. Also can use as Small-sized suction cleaner.

Embodiment: according to the utility model of accompanying drawing and said structure, 7 * 12 centimetres of brush end sizes, plastics (mould) moulding of loam cake (2) and end box (1), flabellum (7) diameter is used plastic production for 3 centimetres, motor (5) is 4.5 volts 1 watt of a direct current, bristle (10) is a mane, and all the other are same as the prior art.

Claims (1)

1, a kind of dust-absorbing blackboard brush, the end box (1) of band bristle (10) and the loam cake (2) that engages with this end box (1) are arranged, it is characterized in that, there are air suction opening (9) and inner chamber (11) to be equipped with control of dust capsule (12) on the base plate of end box (1), on the support of motor (4) of loam cake (2) dc motor (5) is housed, on this motor (5) axle flabellum (7) is housed, flabellum (7) below has porous plate (13) to be contained on the upper cover body, loam cake (2) end face has steam vent (6), is equipped with the dry cell box (3) and the external electric supply socket (8) that are connected with described motor (5) through power switch in loam cake (2).

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