CN2338180Y

CN2338180Y - Electric chalk dust absorbing blackboard eraser

Info

Publication number: CN2338180Y
Application number: CN 98229511
Authority: CN
Inventors: 米丰
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-15
Filing date: 1998-09-15
Publication date: 1999-09-15
Anticipated expiration: 2008-09-15

Abstract

The utility model relates to an electric dust absorbing blackboard eraser, comprising a blackboard eraser cover 1, a transmission mechanism and a wiping mechanism in the blackboard eraser cover. The utility model is characterized in that the top of the backboard eraser cover 1 is provided with a synchronous moving motor 2 and a motor 3. The transmission mechanism which is controlled by the synchronous moving motor 2 and is connected with the synchronous moving motor 2 is composed of a gear edge 4 and a gear wheel 5, wherein, the gear wheel 5 positioned out of the backboard eraser cover 1 is engaged with the gear edge arranged on the lower part of a blackboard. The middle part of the utility model is provided with a cavity body 6 of an air channel and the wiping mechanism, and the bottom of the utility model is provided with a dust absorbing blower 11 and a dust absorbing cloth bag 12. The utility model has the advantages of simple structure, reasonable structure, stable transmission, convenient use and good word wiping and dust absorbing effects, and the utility model also has the advantages of compact structure of a complete machine, low noise, low cost and low using cost because the wiping mechanism, the dust absorbing mechanism and the motor are inserted in the backboard eraser cover.

Description

Electric dust absorption blackboard eraser

The utility model relates to a kind of teaching aid, particularly a kind of electric dust absorption blackboard eraser.

As everyone knows, during teachers' instruction, often perplexed by blackboard wiping, the one, lose time, the 2nd, strengthened the physical demands of teacher when giving lessons, and dust flies upward everywhere, be unfavorable for the healthy of Faculty and Students.For addressing these problems, CN2111862U discloses a kind of " rotary blackboard erasing machine ", it is mainly by overall drive, Revolving blackboard is wiped, and operation control circuit three parts are formed, and several Revolving blackboards are wiped can flatly, vertically wipe the letter written with chalk at arbitrary position on the blackboard, and be provided with limit switch and dust-collecting box, this blackboard machine is owing to guiding axial length, and difficulty of processing is bigger, and expense increases; Its chain, gear and decelerator make the drive mechanism complexity, and transmission stability is poor, and volume increases, and cost improves, and seems impracticable.CN2093762U discloses a kind of " electronic blackboard cleaning device ", it is made up of motor, brush and transmission mechanism, wherein transmission mechanism is made up of driving-belt, screw rod and nut, brush is fixed on the nut, be fixed on the elastic pressure parts on the nut in addition in addition, make brush be pressed towards blackboard, this blackboard is owing to adopt flat wiping to make the dust of wiping be deposited in a side of brushing easily, thereby stay dust on blackboard, surface brush is wiped and is not fallen negative area, in a single day and wear and tear to such an extent that change whole hairbrush, use cost increases.CN2214884Y discloses a kind of " blackboard of electrical cleaning ", and it is by power supply, blackboard, blackboard eraser, drive unit, controlling organization is formed, driving mechanism comprises the driving wheel that is positioned in the blackboard eraser, is positioned on the strip fixture on the blackboard limit, and driving wheel matches with fixture, be equipped with in the blackboard eraser and wipe part clearly, blackboard eraser and blackboard are slidingly matched, and the structure of this blackboard is comparatively simple with respect to aforesaid two class blackboards, but owing to do not establish dust exhaust apparatus, dust flies upward everywhere during wiping, still unresolved problem of environmental pollution.

The purpose of this utility model is to provide a kind of making, electric dust absorption blackboard eraser that use cost is low, rational in infrastructure.

The utility model is achieved in that a kind of electric dust absorption blackboard eraser, it comprises Cover of backboard eraser, transmission mechanism, and the Wiping mechanism in the Cover of backboard eraser, it is characterized in that: described Cover of backboard eraser top is equipped with synchronous mobile motor and motor, the described transmission mechanism of mobile motor control connection is made up of tip surface and gear synchronously, wherein being positioned at the outer gear of described Cover of backboard eraser is meshed with the tip surface that is installed in the blackboard upper and lower, can save decelerator like this, simplify transmission mechanism, and tip surface length is easily fixed, between the upper and lower apart from adjustable, the blackboard eraser that has determined this structure has versatility applicable to big or small arbitrarily blackboard; Its middle part is provided with air channel cavity and described Wiping mechanism, and the main shaft of described Wiping mechanism links to each other with the top motor, and is fixed on the bearing block, the lamination of spindle jacket band bristle; Its bottom is equipped with the dust absorption fan that communicates with the air channel cavity and the cloth bag that gathers dust; because the air channel cavity is arranged on bristle and wipes the fly out tangential direction of dust of word; dust absorption fan is equipped with and the cloth bag that gathers dust in its bottom; make and form air negative pressure in the cavity of air channel; the dust of being wiped is drawn to blower fan like this; delivered to the recovery cloth bag by wind, protected the environmental sanitation in classroom, be beneficial to the healthy of Faculty and Students.

In order to reduce the resistance of Cover of backboard eraser and blackboard relative motion, operate steadily, prolong the life-span of gear and tip surface, increase the load-bearing pulley at blackboard frame and Cover of backboard eraser junction; For the gap that makes electric dust absorption blackboard eraser and blackboard writing surface is consistent, guarantee wiping effect, be provided with spacing pulley in the two sides of tip surface.

For the direction that lower gear is moved, speed is consistent, and is mobile more steady, and a synchronous mobile motor also can be set up in described Cover of backboard eraser bottom, and it links to each other with the gear of described Cover of backboard eraser below.

The main shaft of described Wiping mechanism is a square shaft, lamination is round outside but spuare inside concentric slices, four corner angle with main shaft block lamination, it can not optionally be moved up and down, save clamping device, reduced parts, like this under the high speed rotation of main shaft, bristle on all laminations is subjected to centrifugal action to form ring-type, is pressed on the blackboard surface and contacts friction many times with blackboard, thereby totally wipe writing on the blackboard up hill and dale; The lamination number of spindle jacket can if the wherein bristle of a certain lamination wearing and tearing only need its replacing is got final product, and need not change whole main shaft or whole bristle, thereby saved renewal cost, reduce use cost according to the height decision of blackboard.

Described synchronous mobile motor is connected with limit switch, is in order to limit the displacement of transmission mechanism, to clip the blackboard two ends and promptly stop automatically.

Whether described motor connects a gauge tap, control main shaft by whether closing of this switch and rotate, thereby whether decision keeps the writing in blackboard somewhere.

The power switch of described motor is the power supply ganged switch, and it is positioned at the horizontal two ends of blackboard, as long as connect wherein any, blackboard eraser is promptly started working, thereby makes things convenient for the teacher, needn't go to the other end from one in order to start blackboard eraser.

In sum, the utility model is simple and reasonable for structure, and transmission is stable, and is easy to use, and it is good to wipe word and pick-up performance, and Wiping mechanism, dust collection mechanism, motor are embedded in the Cover of backboard eraser, makes compact integral structure, and noise is little, and cost is low, and cost of use is low.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1: the structural representation of the utility model embodiment;

Fig. 2: the A that is Fig. 1 is to schematic diagram;

Fig. 3: the I portion partial enlarged drawing that is Fig. 1;

Fig. 4: the lamination schematic diagram that is the band bristle.

Referring to above-mentioned accompanying drawing as can be known: a kind of electric dust absorption blackboard eraser, it comprises Cover of backboard eraser 1, transmission mechanism, and the Wiping mechanism in the Cover of backboard eraser 1, it is characterized in that: described Cover of backboard eraser 1 top is equipped with synchronous mobile motor 2 and motor 3, the described transmission mechanism of mobile motor 2 control connections is made up of tip surface 4 and gear 5 synchronously, wherein is positioned at described Cover of backboard eraser 1 outer gear 5 and is meshed with the tip surface of making of angle steel 4 that is installed in the blackboard upper and lower; Its middle part be provided with air channel cavity 6 and with described Wiping mechanism, the main shaft 7 of described Wiping mechanism links to each other with top motor 3, and is fixed on the bearing block 8, the lamination 10 of main shaft 7 overcoat band bristles 9; Its bottom is equipped with the dust absorption fan 11 that communicates with air channel cavity 6 and the cloth bag 12 that gathers dust.

Above-mentioned synchronous mobile motor 2 is connected with limit switch 13.

Above-mentioned motor 3 connects a gauge tap 14.

The power switch of above-mentioned motor 3 is a power supply ganged switch 15, and it is positioned at the two ends of blackboard level.

Can find out also that from Fig. 1 Cover of backboard eraser 1 bottom also has a synchronous mobile motor 2, it links to each other with the gear 5 of Cover of backboard eraser 1 below.

As can be seen from Figure 2: increase load-bearing pulley 16 at blackboard frame and Cover of backboard eraser 1 junction; Be provided with spacing pulley 17 in the two sides of tip surface 4.

Find out from Fig. 3, Fig. 4: the main shaft 7 of described Wiping mechanism is square shaft, and lamination 10 is round outside but spuare inside concentric slices.

Claims

1. electric dust absorption blackboard eraser, it comprises Cover of backboard eraser (1), transmission mechanism, and the Wiping mechanism in the Cover of backboard eraser (1), it is characterized in that: described Cover of backboard eraser (1) top is equipped with synchronous mobile motor (2) and motor (3), the described transmission mechanism of mobile motor (2) control connection is made up of tip surface (4) and gear (5) synchronously, wherein is positioned at the outer gear (5) of described Cover of backboard eraser (1) and is meshed with the tip surface that is installed in the blackboard upper and lower (4); Its middle part be provided with air channel cavity (6) and with described Wiping mechanism, the main shaft of described Wiping mechanism (7) links to each other with top motor (3), and is fixed on the bearing block (8), the lamination (10) of main shaft (7) overcoat band bristle (9); Its bottom is equipped with dust absorption fan (11) that communicates with air channel cavity (6) and the cloth bag that gathers dust (12).

2. electric dust absorption blackboard eraser as claimed in claim 1 is characterized in that: blackboard frame and Cover of backboard eraser (1) junction increases load-bearing pulley (16); Be provided with spacing pulley (17) in the two sides of tip surface (4).

3. electric dust absorption blackboard eraser as claimed in claim 1 is characterized in that: a synchronous mobile motor (2) also can be set up in described Cover of backboard eraser (1) bottom, and it links to each other with the gear (5) of described Cover of backboard eraser (1) below.

4. electric dust absorption blackboard eraser as claimed in claim 1 is characterized in that: the main shaft of described Wiping mechanism (7) is a square shaft, and lamination (10) is round outside but spuare inside concentric slices.

5. as claim 1 or 3 described electric dust absorption blackboard erasers, it is characterized in that: described synchronous mobile motor (2) is connected with limit switch (13).

6. electric dust absorption blackboard eraser as claimed in claim 1 is characterized in that: described motor (3) connects a gauge tap (14).

7. electric dust absorption blackboard eraser as claimed in claim 1 is characterized in that: the power switch of described motor (3) is power supply ganged switch (15).