CN2319228Y

CN2319228Y - Automatic blackboard

Info

Publication number: CN2319228Y
Application number: CN 97242246
Authority: CN
Inventors: 王枢华; 王玮
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-31
Filing date: 1997-12-31
Publication date: 1999-05-19
Anticipated expiration: 2007-12-31

Abstract

The utility model relates to an automatic blackboard, belonging to teaching equipment. The utility model is mainly provided with a belt driven type writing board surface, a drum type erasing roller and a dust collecting groove. A writing belt is driven to be contacted with the erasing roller by a motor to perform erasing match, and chalk dust in fallen into the dust collecting groove. The utility model does not have the disadvantages of chalk dust pollution, small volume, etc. of the traditional blackboard. The utility model has the advantages of no need of manual erasion, simple structure and convenient operation.

Description

Automatic blackboard

The utility model relates to a kind of automatic blackboard, relates in particular to a kind of turn-over automatically, the automatic blackboard of wiping automatically, automatic dust collection.

Existing blackboard adopts hardboard formula structure mostly, and its clipboard face is limited, and capacity is little, and inconvenience is write in the corner, and can produce reflective phenomenon.During wiping, use blackboard eraser, time-consuming, effort, and dust is bigger, and totally unfavorable to health, environment is also polluted.A kind of mechanical ascending and descending blackboard is by elevating mechanism upper and lower two blackboards to be used alternatingly, and its complex structure, cost are higher, uses still inconvenience.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and a kind of turn-over, wiping, dedusting automatically are provided, no dust pollution, and the capacity of writing is big, automatic blackboard simple in structure.

The purpose of this utility model can reach by following measure:

A kind of automatic blackboard comprises clipboard, and its special character is: described clipboard is for writing band (2), and it is arranged on the last roller bearing (1) and following roller bearing (5) that comprises a moving roller bearing; Described upper and lower roller bearing (1), (5) all are arranged on the locating support (13), and clipboard face (4) inboard of writing band (2) is provided with liner plate (3); The described below of roller bearing (5) down is provided with dust arrester, and this dust arrester comprises dust collecting trough (7) and can contact the scrubbing brush (6) that cooperates with the band (2) of writing on the following roller bearing (5) that described scrubbing brush (6) is provided with dedusting bristle (8).

Scrubbing brush of the present utility model (6) can be actionless quiet scrubbing brush.

Scrubbing brush of the present utility model (6) also bristle (8) can with write the moving scrubbing brush that band (2) contacted, broke away from cooperation.

Scrubbing brush of the present utility model (6) can comprise action roller (11) and be arranged at the bristle (8) on action roller (11) surface.

Action roller of the present utility model (11) can be provided with eccentric positioner (9) lay particular stress on heart roller, the upside roll surface that described action roller (11) leaves standstill the position is provided with gap without bristles (12).

Dust collecting trough of the present utility model (7) water (10) of can packing into, described action roller (11) lower end is located under the liquid level of water (10).

The accompanying drawing drawing is described as follows:

Fig. 1 is a sectional structure schematic diagram of the present utility model;

Fig. 2 is a structural representation of the present utility model;

The utility model is described in further detail below in conjunction with accompanying drawing:

Referring to Fig. 1, clipboard of the present utility model adopts to write is with 2, and it is arranged on the upper and lower roller bearing 1,5.Write with 2 can select that quality is closely knit for use, the surface is convenient to chalk and is write, has the clothes such as all kinds of chemical fibres that certain flexibility is convenient to the roller bearing drive transfer, is good with the cloth that has certain water proofing property simultaneously.Get one of upper and lower roller bearing 1,5 and be moving roller bearing, it can drive to write under motor 14 drives is with 2 to move, and referring to Fig. 2, writing surface 4 inboards of writing with 2 are provided with the liner plate 3 that supports writing surface, and dust arrester comprises dust collecting trough 7 and the scrubbing brush of being located in it 6.Scrubbing brush 6 can adopt quiet scrubbing brush, and bristle 8 promptly is set on a flat board or arc, and quiet scrubbing brush is fixed in down roller bearing 5 belows, makes writing on bristle 8 and the following roller bearing 5 be with 2 to contact cooperation.When writing when being with 2 to move with roller bearing, 2 contact frictions are with in writing on bristle 8 and the following roller bearing 5, write with the writing on 2 to be wiped free of, in the dust collecting trough 7 below dust falls into.Scrubbing brush 6 also can adopt moving scrubbing brush, and moving scrubbing brush can adopt and make bristle 8 contact, break away from the travel mechanism that cooperates with writing with 2, but is good to adopt action roller formula structure.Be about to action roller 11 and be arranged at down roller bearing 5 belows, bristle 8 is located at action roller 11 surfaces, makes writing on bristle 8 and the following roller bearing 5 be with 2 to contact, when motor 15 drives action rollers 11 and rotates, starter motor 14 makes to write is with 2 produce to move, and then writes with the writing on 2 to be wiped free of.Can charge into water 10 in the dust collecting trough 7, and action roller 11 lower ends are positioned under the water liquid level, then water 10 can clean the dust on the bristle 8, can make bristle 8 band water wipings again, make wiping more clean, more thorough.Action roller 11 also can adopt lays particular stress on heart roller, promptly be provided with one and lay particular stress on center device 9 in action roller 11 1 sides, make action roller 11 when static, it has a side that lays particular stress on center device 9 and always is positioned at the below, like this, on the opposite side surface of action roller 11 gap 12 without bristles is set, when action roller 11 transfixions, bristle 8 on it is with 2 to break away from writing, and at this moment writes with 2 and moves and writing on it can not be wiped free of.Laying particular stress on heart roller can be synthetic by the semicolumn of two different specific weight materials, also can on action roller 11, embed proportion bigger lay particular stress on center device, bristle 8 can adopt artificial, natural hair shape to brush, and also can adopt felt or felt piece etc.The all available hand-operating device of motor of the present utility model is replaced.

The utility model compared with prior art has following advantage:

1, the utility model is simple in structure, and cost is low.

2, write band type structure because of employing, when writing, no longer be subjected to the quantitative limitation of plate face, can select the best Arbitrarily write the position, and the function of temporary literal is arranged.

3, write the employing of band, avoided the reflective phenomenon of traditional blackboard, can protect student's eyesight.

4, during wiping, drum-type wiper rolls structure can with write that band wipes namely soon, again clean.

5, sealed use with the water dust collecting trough has solved dust pollution and wiped clean, thorough up hill and dale Problem.

6, adopt motor-driven, simple, convenient, save time, laborsaving.

Claims

1, a kind of automatic blackboard comprises clipboard, it is characterized in that: described clipboard is for writing band (2), and it is arranged on the last roller bearing (1) and following roller bearing (5) that comprises a moving roller bearing; Described upper and lower roller bearing (1), (5) all are arranged on the locating support (13), and clipboard face (4) inboard of writing band (2) is provided with liner plate (3); The described below of roller bearing (5) down is provided with dust arrester, and this dust arrester comprises dust collecting trough (7) and can contact the scrubbing brush (6) that cooperates with the band (2) of writing on the following roller bearing (5) that described scrubbing brush (6) is provided with dedusting bristle (8).

2, automatic blackboard as claimed in claim 1 is characterized in that: described scrubbing brush (6) is actionless quiet scrubbing brush.

3, automatic blackboard as claimed in claim 1 is characterized in that: described scrubbing brush (6) be bristle (8) can with write band (2) and contact, break away from the moving scrubbing brush that cooperates.

4, as claim 1 or 3 described automatic blackboards, it is characterized in that: described scrubbing brush (6) comprises action roller (11) and is arranged at the bristle (8) on action roller (11) surface.

5, automatic blackboard as claimed in claim 4 is characterized in that: described action roller (11) is laid particular stress on heart roller for what be provided with eccentric positioner (9), and the upside roll surface that described action roller (11) leaves standstill the position is provided with gap without bristles (12).

6, automatic blackboard as claimed in claim 5 is characterized in that: water (10) is housed in the described dust collecting trough (7), and described action roller (11) lower end is located under the liquid level of water (10).