CN2111862U

CN2111862U - Rotary blackboard cleaner

Info

Publication number: CN2111862U
Application number: CN 91216091
Authority: CN
Inventors: 施吉青
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-02
Filing date: 1991-06-02
Publication date: 1992-08-05

Abstract

The utility model relates to a rotary blackboard cleaner, mainly comprising a complete machine driving device, rotary blackboard erasers and an operation control circuit. A plurality of rotary blackboard erasers can horizontally and verticality erase chalk words on an arbitrary part to whole on a blackboard and a limit switch and a dust collecting box are arranged on the rotary blackboard cleaner. The utility model has the advantages that labour intensity is reduced, efficiency is improved, dust is prevented, etc. Compared with an existing blackboard eraser.

Description

Rotary blackboard cleaner

The utility model belongs to the household goods technical field, is a kind of blackboard erasing machine.

Existing blackboard eraser has by the people is hand-held to be wiped, and it is time-consuming to require great effort, and it is low to clean efficient; The chalk foam that wiping falls flies upward everywhere and is scattered, harm teachers and students health.

The purpose of this utility model is a kind of blackboard erasing machine that can select erasing, collect dust of design.

Design of the present utility model is: by controlling organization blackboard erasing machine is moved horizontally along the blackboard length direction; Be provided with a plurality of Revolving blackboards in the blackboard erasing machine and wipe, selectively the letter written with chalk on the position about the erasing blackboard; Be provided with dust-collecting box and distance caging device.

Further narrate the specific structural features of the rotary blackboard erasing machine of the utility model in conjunction with example and accompanying drawing.

Fig. 1 represents the general structure schematic diagram of the rotary blackboard erasing machine of the utility model;

Fig. 2 represents the control circuit figure of the rotary blackboard erasing machine of the utility model.

Referring to Fig. 1, Fig. 2, the rotary blackboard erasing machine of the utility model comprises: overall drive,, Revolving blackboard wipes,, operation control circuit.Wherein, overall drive mainly comprises among individual event ac motor 1(Fig. 2 being D), deceleration worm gear 2, deceleration worm screw 3, transmission long axis 9, gear 7, tooth bar 6, directive wheel 4, guided way 5, casing 10.Actuating motor 1, by worm screw 3, worm gear 2 slows down and commutates, and rolls on tooth bar 6 by major axis 9 driven gears 7, and casing 10 is moved horizontally in blackboard 8 length along guided way 5 with directive wheel 4.Both sides two guided ways 5 are set at blackboard about in the of 8, correspondingly with guided way 5 on casing 10, are provided with two directive wheels 4.Wherein, II, Revolving blackboard are wiped and are mainly comprised among miniature cocurrent electromotor 13(Fig. 2 being D ₁Or Dx), drive pulley 14, belt 15, negative pulley wheel 16, rotating shaft 17 is L among electromagnetic clutch 18(Fig. 2 ₁Or Lx), blackboard eraser 20, and dust-leading board 12, dust-collecting box 11.Start miniature cocurrent electromotor 13, drive drive pulley 14,, drive blackboard eraser 20 rotations by belt 15, negative pulley wheel 16 and rotating shaft 17; Simultaneously, electromagnetic clutch 18 adhesives move axially rotating shaft 17, make blackboard eraser 20 contact blackboards 8, produce certain frictional force, wipe the letter written with chalk on the blackboard; Wiping the dust fall from blackboard falls dust-leading board 12 and slips in the dust-collecting box 11.Wipe at the Revolving blackboard that can install up and down on the installing plate 19 more than the cover, take effective use face of blackboard 8 can make each cleaning section, installing plate 19 is contained on the casing 10, and dust-leading board and dust-collecting box can be shared one.III wherein, operation control circuit (referring to Fig. 2) comprises that transmission control circuit and Revolving blackboard wipe control circuit ₁The transmission control circuit is by the 220V power supply, RD, and B is elementary, SCR ₁, SCR ₂, K ₁, K ₂, J ₁, J ₂, R ₁, R ₂, C ₁, D constitutes; Revolving blackboard is wiped control circuit by B level, ZG ₁, ZG ₂, C ₂And Dx, C _3x, Lx, Kx, KE _3xConstitute.

Work as K ₁During conducting, miniature cocurrent electromotor 13(D ₁) and electromagnetic clutch 18(L ₁) energising, miniature cocurrent electromotor 13(D ₁) by drive pulley 14, belt 15, negative pulley wheel 16, rotating shaft 17 drive blackboard eraser 20 rotations; Electromagnetic clutch 18(L ₁) the magnetic force adhesive that produces, make blackboard eraser 20 contact blackboards 8 surfaces; Work as K ₁Disconnect, blackboard eraser 20 stops the rotation and leaves blackboard.Handle J ₁Or J ₂, complete machine is moved horizontally, when moving on to blackboard the right and left, travel switch K ₁Or K ₂Make J ₁Or J ₂Disconnect, stop to move.If respectively with K ₁Kx KE in parallel ₃₁KE _3x, can realize remote control or other control to this machine.

This rotary blackboard erasing machine of the present utility model can be by handling J ₁Or J ₂, handle K ₁Kx wipes the letter written with chalk blackboard horizontal direction and arbitrary position vertical direction (to all), has realized purpose of design.Compare with existing blackboard scraper, have labour intensity and alleviate, the efficient that erases the board improves, and has eliminated advantage such as dust pollution.

Claims

1, a kind of blackboard erasing machine is characterized in that comprising: I, overall drive, and II, Revolving blackboard are wiped, III, operation control circuit, wherein:

I, overall drive, by individual event ac motor 1 (D), deceleration worm gear 2, deceleration worm screw 3, transmission long axis 9, gear 7, tooth bar 6, directive wheel 4, guided way 5, casing 10 is formed; Individual event ac motor 1 is by worm screw 3, and worm gear 2 slows down and commutates, and rolls on tooth bar by major axis 9 driven gears 7, and casing 10 is moved horizontally along guided way 5 with directive wheel 4;

II, Revolving blackboard are wiped, by miniature cocurrent electromotor 13 (D ₁Or D _x), drive pulley 14, belt 15, negative pulley wheel 16, rotating shaft 17, electromagnetic clutch 18 (L ₁Or L _x), blackboard eraser 20, and dust-leading board 12, dust-collecting box 11 is formed; Miniature cocurrent electromotor 13 passes through driving wheel 14, belt 15, and follower 16, rotating shaft 17 drive blackboard erasers 20 rotations; The electromagnetic clutch adhesive moves axially rotating shaft simultaneously, blackboard eraser 20 contact blackboards; The dust that wipes from blackboard can be fallen dust-leading board 12 backs and slip in the dust-collecting box 11; This machine is installed the above Revolving blackboard of a cover and is wiped;

III, operation control circuit are wiped control circuit by transmission control circuit and Revolving blackboard and are formed; The transmission control circuit can make complete machine move horizontally, and Revolving blackboard is wiped control circuit can make blackboard eraser rotation and contact blackboard surface.