CN2433090Y

CN2433090Y - Blackboard with automatic dust removing and movable plate

Info

Publication number: CN2433090Y
Application number: CN 00219462
Authority: CN
Inventors: 葛怀炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-23
Filing date: 2000-02-23
Publication date: 2001-06-06
Anticipated expiration: 2010-02-23

Abstract

The utility model relates to a movable film strip blackboard with automatic dust removing function. The utility model is composed of a frame, work boxes, a film strip blackboard. Both sides of the frame are respectively provided with a work box, and the inner part of each work box is provided with a film coiling roller, a hair brush, a stopping film, a differential speed regulating rod and a motor. The film strip blackboard which is made of soft material are fixed on left and right two film coiling rollers by differential speed regulating shafts. The blackboard used at present has the defects of poor dust removing effect, time taking, labor taking, halfway dust removal and inconvenient operation. The utility model has the advantages of thorough dust removal, convenient operation, the ability of storing the written content, high automatization degree, etc.

Description

Automatic dedusting moving sheet band blackboard

The utility model relates to a kind of culture and education apparatus, a kind of blackboard of automatic dedusting more precisely.

Blackboard is the teaching aid that school of every institute must use everyday, and chalk dust is influencing work teachers and students' health always.In recent years, though the appearance of various dustless, dust absorption blackboard erasers is arranged, be not subjected to teachers and students' welcome, its reason: some need use battery, and some need add water, and is very inconvenient.And this class blackboard eraser all needs manpower to wipe, and wastes time and energy.The electrical dust-removing blackboard also occurs at present, but the ubiquity dedusting is not thorough, the shortcoming of inconvenient operation.

The purpose of this utility model is: provide a kind of dedusting thorough, easy to operate, and can store written contents from moving plate band blackboard.

The purpose of this utility model realizes with following method: a work box respectively is housed in the blackboard framework both sides, motor all is housed in the case, travelling gear, sheet band blackboard scrolling mechanism, the hairbrush that wipes chalk writing all is housed in the work box, in the middle of hairbrush and scrolling mechanism, barrier flaps is housed, can keep the letter written with chalk that need not wipe with storage, under case dust-collecting box is housed, the dust under wiping can drop in the box and not pollute the environment.Inboard in two work boxs upper end, on the sheet band blackboard photoelectric control circuit is housed, after the sheet roll coil of strip is intact, can stop the scrolling operation principle automatically: in the time of after blackboard is write full word, need writing again, click K1 locking press button switch, motor ND1, ND2 get electric, do running clockwise respectively, do motion clockwise by gear driven roll film cylinder, have the sheet band blackboard left side of writing to be involved in work box, the outer writing of roll film cylinder is wiped in hairbrush cylinder work simultaneously.When the blackboard that does not write moved to Len req, clicking K1 can shut down, and as not according to K1, when blackboard moves to design length, owing on the sheet band loophole was arranged, so photoelectric control circuit (K3) work, autostop.Press K2 locking press button switch, motor is done counterclockwise to rotate, and sheet band blackboard is involved in the right side case.When certain partly need keep on the blackboard, the barrier flaps control crank is pulled downwards to spacing place, can be involved in storage in the roll film cylinder.

Below in conjunction with accompanying drawing the utility model is further elaborated.

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is the utility model work box vertical view;

Accompanying drawing 3 is a frame side view of the present utility model;

Accompanying drawing 4 is Fig. 3 partial enlarged drawing;

Accompanying drawing 5 is the utility model work box expanded view;

Accompanying drawing 6 is an electrical schematic diagram of the present utility model.

Referring to Fig. 1,, a work box 2 is housed respectively in metal framework 1 both sides, there is a coil 3 at the case middle part, and a side of tube is equipped with hairbrush 4, and a barrier flaps 5 is housed between coil and the hairbrush, barrier flaps is installed on the connecting rod 6 of trough of belt, the connecting rod other end is equipped with minor axis 7, and minor axis stretches out outside the case by the hole on the tank wall, handle 8 is housed on the minor axis end, by gear 9,10, becoming to coincide connects between coil and the hairbrush.In the bottom of case dust-collecting box 11 is housed, coil one side is equipped with motor 12 in case, and gear 13 is housed on the motor reel, by idler gear 14, is connected with coil is identical.On one side a differential adjusting lever 15 is arranged at coil, spring 16 is housed on the bar, rod end has a groove 17, and the other end is fixed on support interior 18.The groove of rod end is embedded in the end that differential is adjusted axle 19.Framework 1 is by upper and lower " 7 " font support 20, is fixed on the base plate 21, and a metallic plate 22 is arranged before the base plate, is fixed on the base plate by diagonal brace 23.But the sheet band 24 of a move left and right is housed before the metallic plate, and its material rubber is coated with rubber on plastics or the cloth, and the plastics type flexible material is made.Axle 19 is adjusted by frame groove 25, differential in sheet band two ends, is fixed on left and right two coils.In framework upper work box inboard, a photoelectric controller (K3) 26 respectively is housed, locking press button switch 27 (K1, K2) is installed on the work box face.Referring to Fig. 6, except that ND1, ND2, K1, K2, K3, be contained in the work box after being installed on the circuit board 28 among the figure, power line 29 is connected to outside the work box.

Claims

1, a kind of automatic dedusting moving sheet band blackboard, be made up of framework, work box, sheet band blackboard, it is characterized in that: respectively there is a work box framework both sides, and coil is housed in the case, one side of tube is equipped with hairbrush, between tube and the hairbrush barrier flaps is housed, the coil opposite side is equipped with motor, and motor coincide with coil by gear and is connected, case is interior and the differential adjusting lever is housed, differential is adjusted axle, and sheet band blackboard two ends are fixed on left and right two coils by adjusting axle.

2, by described band of claim 1 blackboard, its feature: on the differential adjusting lever spring is housed, rod end has a groove, and groove is embedded in the end that differential is adjusted axle, and the adjusting lever other end is fixed in the support.

3, by described band of claim 1 blackboard, its feature: sheet band blackboard is made with being coated with on rubber, plastics or the cloth with rubber, plastics type flexible material.

4, by described band of claim 1 blackboard, its feature: a metallic plate is arranged before the chassis base, and a photoelectric controller respectively is equipped with in framework upper work box inboard.