CN2173714Y

CN2173714Y - Dusting health blackboard eraser

Info

Publication number: CN2173714Y
Application number: CN 93244996
Authority: CN
Inventors: 张志红
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-19
Filing date: 1993-11-19
Publication date: 1994-08-10
Anticipated expiration: 2003-11-19

Abstract

The utility model relates to a dusting health blackboard eraser, which comprises a casing, a direct current electric motor, a vane wheel, a dust suction cavity body, a felt erasing plate and a palm hair erasing plate. The electric motor is arranged in the casing, and the felt erasing plate or the palm hair erasing plate is plugged on the dust suction cavity body. The electric motor drives the blade wheel to rotate to form the air flow, in order to suck the dust erased off into the dust cavity of the dust suction cavity body, so the environment pollution is effectively limited, and the teaching condition is improved. The dust suction cavity and the casing are convenient to be assembled and disassembled, so the dust in the dust cavity can be removed timely. The utility model has the advantages of lightness, beautiful configuration and cleanness and convenience in use and is an ideal teaching appliance.

Description

Dusting health blackboard eraser

The utility model belongs to teaching aid.

At present, the employed blackboard eraser major part in all kinds of universities and colleges of China and kindergarten still is simple and crude old-fashioned blackboard eraser, this blackboard eraser adopts felt to add the iron sheet bonnet and makes, dull and stereotyped one, one wipes dust on the other hand, in the scope that blackboard eraser is brandished, air pollution is serious, and this all is a kind of huge harm for the healthy of Faculty and Students undoubtedly.Also sell a kind of " electrostatic precipitation scrubbing brush " in recent years on the market, this scrubbing brush is wiped the face indentation, and pick-up performance is also undesirable.Liaoning New World teaching aid Products Co., Ltd is through for many years effort, " water-soluble no-dust chalk " and " plastic writing board " patented product have been succeeded in developing, though this product belongs to new and high technology, the necessary supporting use of " but water-soluble no-dust chalk " and " plastic writing board ", a lot of schools are because funds are in short supply, be difficult to displacement, so inconvenience is promoted.

The purpose of this utility model provides a kind of small and exquisite slim and graceful, has attractive appearance, direct current dynamic formula dedusting health care blackboard eraser easy to use.

The technical solution of the utility model realizes as follows: it comprises housing, electric DC motor, vane frame, dust suction cavity, felt scrubbing brush and palm fiber scrubbing brush dedusting health care blackboard eraser.Be provided with four reference columns in the middle of in the described housing, pressing plate is housed on the reference column, electric DC motor is fixed on the pressing plate in the middle of four reference columns.On the axle of electro-motor vane frame is housed, vane frame is provided with many group blades, a spring knob is housed in the middle of the back side of shell, being provided with two contact blocks below the spring knob is contained on the housing and has threading hole, reference column is provided with two battery compartments in the position up and down in the housing, the correspondence position back side of shell of battery compartment is provided with the battery compartment lid of two band spring contact cards, and side, housing wall rear end has steam vent.The inner walls front end is provided with the Long Circle retainer plate, and the Long Circle spacer is housed on the retainer plate, has the inlet scoop periphery in the middle of the spacer and is provided with outer lug boss, along the outer lug boss periphery dust hood is housed.The gim peg bottom that housing outer wall top is provided with the band hinge is provided with the edge groove.Dust suction chamber outer wall top is provided with snib groove bottom and is provided with edge, and the front of dust suction cavity is provided with the wall back, chamber that is the Long Circle bell mouth shape and is provided with the dirt chamber and is provided with the plugboard trough bottom along the limit and is provided with bayonet socket, has the dirt mouth in the middle of the wall of chamber.The abutted surface of dust suction cavity and housing is provided with sealing ring.Felt and palm fiber are separately fixed on the blackboard eraser panel, and the blackboard eraser panel is provided with the slot limit, and bayonet socket bolt and many through-hole grooves are made felt scrubbing brush and palm fiber scrubbing brush.Be used interchangeably according to different felt scrubbing brushes of purposes and palm fiber scrubbing brush, be contained on the dust suction cavity.

Adopt the utility model compared with prior art, it is totally convenient to have a use, and it is obvious to inhale the dust effect, removes dust characteristics easily.When using the felt scrubbing brush, can reach face of horizontal wiping, a perpendicular line, certain delegation's word or the tiny part in the style of writing of choosing wiping flexibly and easily of wiping.When using the palm fiber scrubbing brush, can clear up the surplus dirt in the board slot, controlled the dust removal of home effectively, limited environmental pollution, improved teaching condition.

Fig. 1 is the utility model structure cutaway view;

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

Fig. 3 is the A-A partial sectional view of Fig. 2;

Fig. 4 is a palm fiber scrubbing brush partial view of the present utility model;

In Fig. 1 and Fig. 4, the parts that sequence number is represented on the figure (1) are housing, and (2) are the battery compartment lid, (3) be battery compartment, (4) are threading hole, and (5) are contact block, (6) be the spring knob, (7) are electro-motor, and (8) are reference column, (9) be pressing plate, (10) are vane frame, and (11) are blade, (12) be steam vent, (13) are retainer plate, and (14) are gim peg, (15) be the snib groove, (16) are the dirt chamber, and (17) are the chamber wall, (18) be the slot limit, (19) are plugboard trough, and (20) are felt, (21) be edge, (22) be the edge groove, (23) are sealing ring, and (24) are spacer, (25) be the blackboard eraser panel, (26) be bayonet socket, (27) are the bayonet socket bolt, and (28) are the dust suction cavity, (29) be outer lug boss, (30) be the inlet scoop, (31) were the dirt mouth, and (32) are dust hood, (33) be through-hole groove, (34) are palm fiber.

Above accompanying drawing is a specific embodiment of the utility model, is described further below in conjunction with accompanying drawing:

Referring to Fig. 1～Fig. 4, be provided with four reference columns (8) in the middle of in housing (1), pressing plate (9) is housed on the reference column (8), electric DC motor (7) is fixed between last four reference columns of pressing plate (9) (8), on the axle of electro-motor (7) vane frame (10) is housed, vane frame (10) is provided with many group blades (11).A spring knob (6) is housed in the middle of housing (1) back side, is provided with two contact blocks (5) below the spring knob (6) and is contained in housing (1) and goes up and have threading hole (4).The interior reference column of housing (1) (8) position up and down is provided with two battery compartments (3), and correspondence position housing (1) back side of battery compartment (3) is provided with the battery compartment lid (2) of two band spring contact cards, can install and remove easily.The both positive and negative polarity contact line of battery compartment (3) lining battery joins by threading hole (4) and contact block (5).Side, housing (1) wall rear end has steam vent (12).Housing (1) inwall front end is provided with Long Circle retainer plate (13), Long Circle spacer (24) is housed on the retainer plate (13), have inlet scoop (30) periphery in the middle of the spacer (24) and be provided with outer lug boss (29), the dust hood (32) that nylon fine sand cloth is manufactured is housed along outer lug boss (29) periphery.Gim peg (14) bottom that housing (1) outer wall is provided with the band hinge is provided with edge groove (22).Dust suction cavity (28) outer wall top is provided with draw-in groove (15) bottom and is provided with edge (21).Dust suction cavity (28) and being connected of housing (1) are by edge (21) being placed on edge groove (22) lining, and the snib of gim peg (14) is placed on snib groove (15) lining and realizes, can install and remove easily.Dust suction cavity (28) is provided with sealing ring (23) with the abutted surface of housing (1).The front of dust suction cavity (28) is provided with chamber wall (17) back that is the Long Circle bell mouth shape and is provided with dirt chamber (16) and is provided with plugboard trough (19) bottom along the limit and is provided with bayonet socket (26), has dirt mouth (31) in the middle of the chamber wall (17).Felt (20) sticks on board wiper plane and pulls and make the felt scrubbing brush on (25), be fixed on the blackboard eraser panel (25) to palm fiber (34) pugil pugil and make the palm fiber scrubbing brush, blackboard eraser panel (25) is provided with slot limit (18) bayonet socket bolt (27) and three through-hole grooves (33).When erasing the board the slot limit (18) of felt scrubbing brush is placed on plugboard trough (19) lining of dust suction cavity (28), the bayonet socket bolt (27) on the blackboard eraser panel (25) is stuck in bayonet socket (26) lining of dust suction cavity (28).Open battery compartment lid (2) two chargeable batteries are placed on battery compartment (3) lining, cover battery compartment lid (2) spring contact card battery is fixed.In the time of need embrocating, the palm of the hand is pressed spring knob (6), two contact blocks (5) conducting, and electro-motor (7) begins rotation, because the effect of blade (11), produces an air and flow to advance dirt mouth (31) from through-hole groove (33) and enter inlet scoop (30) and discharge by steam vent (12).Dust under felt (20) is wiped passed through dirt mouth (31) by through-hole groove (33) inspiration chamber wall (17) and dropped on lining, dirt chamber (16), because spacer (24) and dust hood (32) are arranged, dust advances less than in the housing (1).Realized the limit dust suction that is close to like this, controlled dust and flown upward everywhere.Trip spring knob (6) two contact blocks (5) disconnect, electro-motor (7) stall.Yu Chenshi in the cleaning blackboard groove changes the felt scrubbing brush into the palm fiber scrubbing brush and in like manner just can clear up surplus dirt.When removing the dust of lining, dirt chamber (16), only need gim peg (14) is pulled upwardly, dust suction cavity (28) just can separate with housing (1), outwells the dust in the dirt chamber (16), refills and can reuse.

Utilize the utility model to clean clothing in the family with water, the surface dust effect on furniture and the utensil also makes us very satisfied.Main element of the present utility model all adopts the engineering plastics pressure injection to form, and the manufacturing process performance is good, and battery adopts chargeable storage, and is durable in use, is a kind of comparatively desirable teaching aid.In a single day estimate to put goods on the market, will produce favorable economic benefit.

Claims

1, a kind of dedusting health care blackboard eraser, it comprises housing (1), dc motor motor (7), vane frame (10), dust suction cavity (28), felt scrubbing brush and palm fiber scrubbing brush, it is characterized in that: be provided with four reference columns (8) in the middle of in the described housing (1), pressing plate (9) is housed on the reference column (8), electro-motor (7) is fixed in the middle of last four reference columns of pressing plate (9) (8), on the axle of electro-motor (7) vane frame (10) is housed, vane frame (10) is provided with many group blades (11), a spring knob (6) is housed in the middle of housing (1) back side, being provided with two contact blocks (5) below the spring knob (6) is contained in housing (1) and goes up and have threading hole (4), the interior reference column of housing (1) (8) position up and down is provided with two battery compartments (3), correspondence position housing (1) back side of battery compartment (3) is provided with the battery compartment lid (2) of two band spring contact cards, side, housing (1) wall rear end has steam vent (12), housing (1) inwall front end is provided with Long Circle retainer plate (13), Long Circle spacer (24) is housed on the retainer plate (13), have inlet scoop (30) periphery in the middle of the spacer (24) and be provided with outer lug boss (29), along outer lug boss (29) periphery dust hood (32) is housed, gim peg (14) bottom that housing (1) outer wall top is provided with the band hinge is provided with edge groove (22), dust suction cavity (28) outer wall top is provided with snib groove (15) bottom and is provided with edge (21), the front of dust suction cavity (28) is provided with chamber wall (17) back that is the Long Circle bell mouth shape and is provided with dirt chamber (16) and is provided with plugboard trough (19) bottom along the limit and is provided with bayonet socket (26), had dirt mouth (31) in the middle of the chamber wall (17), dust suction cavity (28) is provided with sealing ring (23) with the abutted surface of housing (1), felt (20) and palm fiber (34) are separately fixed on the blackboard eraser panel (25), and blackboard eraser panel (25) is provided with slot limit (18) bayonet socket bolt (27) and many through-hole grooves (33).

2, a kind of dedusting health care blackboard eraser according to claim 1, it is characterized in that: the scrubbing brush that has felt (20) can exchange with the scrubbing brush that has palm fiber (34), is contained on the dust suction cavity (28).