CN103264599A

CN103264599A - Automatic blackboard eraser

Info

Publication number: CN103264599A
Application number: CN2013101646971A
Authority: CN
Inventors: 苗现华; 王稳; 孙笪忠; 李海生
Original assignee: Chien Shiung Institute of Technology
Current assignee: Chien Shiung Institute of Technology
Priority date: 2013-05-08
Filing date: 2013-05-08
Publication date: 2013-08-28

Abstract

The invention relates to an automatic blackboard eraser which comprises guide devices and a blackboard eraser body. The guide devices are mounted on the upper and the lower sides of a blackboard, and the blackboard eraser body is in transmission connection with the guide devices. The blackboard eraser body comprises an elongated closed box. Movement mechanisms are mounted at two ends of the box. A dust inlet is arranged in the middle of one side, clinging to the blackboard, of the box. Wool felt is fixed on two sides of the dust inlet. A dust collection fan is mounted on the side wall relative to the dust inlet of the box. A dust discharge channel is mounted on the outer side of the dust collection fan. A dust collection box is mounted at the bottom of the dust discharge channel. The automatic blackboard eraser has the advantages of simple structure, high erasing efficiency, no dust pollution and the like.

Description

Automatic blackboard eraser

Technical field

The present invention relates to a kind of blackboard eraser, especially a kind of automatic blackboard eraser that has dust exhaust apparatus.

Background technology

Blackboard is most important media in the classroom instruction, and chalk powders under Writer's pressure effect and is attached to blackboard surface formation writing, and final powder is taken away by the friction of wool felt on the blackboard eraser, has realized writing and the circulation of wiping.Be a kind of work of simple repetition and wipe that letter written with chalk writes relatively, not only can cause the discomfort of personnel's arm, and the chalk dust that flies upward can bring harm to personnel's respiratory system, be badly in need of a kind of advantages of simplicity and high efficiency automatics.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of simple in structure, automatic blackboard eraser that efficiency of erasing is high.

Technical scheme: a kind of automatic blackboard eraser, comprise be installed on blackboard up and down both sides guider and with the blackboard eraser of described guider driving coupling, described blackboard eraser comprises long and narrow enclosed box body, the two ends of described box body are equipped with motion, the middle part that described box body is close to blackboard one side has the dust entrance, fixedly there is wool felt the both sides of described dust entrance, on the relative sidewall of described box body dust entrance dust absorption fan is installed, the outside of described dust absorption fan is equipped with the ash discharge passage, and the bottom of described ash discharge passage is equipped with ash collecting box.

As preferably, described guider comprises parallel optical axis and gear band, and the two ends of described box body have the slide block that cooperates with described optical axis, and described motion comprises the gear that cooperates with described gear band and the motor that is used for driven wheel.

As preferably, the two ends of described guider also are equipped with limit switch.

Beneficial effect: the structure that automatic blackboard eraser of the present invention cooperates with guide rail by motion, simple in structure, efficiency of erasing is high, and also dust pollution can be effectively avoided in the setting of dust absorption fan, ash discharge passage and ash collecting box on the box body.

Description of drawings

Be described further of the present invention below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the embodiment of the invention one;

Fig. 2 is the cutaway view of blackboard eraser among Fig. 1;

Fig. 3 is the left view of Fig. 2.

The specific embodiment

Embodiment: the structure of the automatic blackboard eraser of present embodiment such as Fig. 1, Fig. 2 and shown in Figure 3, comprise be installed on blackboard up and down both sides guider 1 and with the blackboard eraser 2 of guider 1 driving coupling, the two ends of guider 1 also are equipped with limit switch 3.Guider 1 comprises parallel optical axis 1-1 and gear band 1-2, and the slide block 1-3 that cooperates with optical axis 1-1 of blackboard eraser 2 two ends, blackboard eraser 2 comprises long and narrow enclosed box body 2-1, install by the gear 2-2 that cooperates with gear band 1-2 and the motion formed for the motor 2-3 of driven wheel at the two ends of box body 2-1, the middle part that box body 2-1 is close to blackboard one side has dust entrance 2-4, fixedly there is wool felt 2-5 the both sides of dust entrance 2-4, box body 2-1 is equipped with dust absorption fan 2-6 at the relative sidewall of dust entrance 2-4, the outside of dust absorption fan 2-6 is equipped with ash discharge passage 2-7, and the bottom of ash discharge passage 2-7 is equipped with ash collecting box 2-8.

During use, automatic blackboard eraser of the present invention adopts existing control circuit, and the rear drive motor 2-3 driven gear 2-2 that namely switches on moves at gear band 1-2, and under the guide effect of optical axis 1-1 and slide block 1-3, blackboard eraser 2 is done rectilinear motion along optical axis 1-1; Trigger limit switch 3 when blackboard eraser 2 moves to the end of blackboard, control circuit makes drive motors 2-3 reverse, thereby makes blackboard eraser 2 move reciprocatingly between the two ends of optical axis 1-1.And the chalk dust of wiping generation through wool felt 2-5 enters ash discharge passage 2-7 by dust entrance 2-4 under the suction of dust absorption fan 2-6, finally enter among the ash collecting box 2-8, control circuit can make operator's motion to automatic blackboard eraser outside certain distance carry out straighforward operation by the mode of external remote controller.

The above only is preferred embodiment of the present invention, as long as adopt technical scheme of the present invention, perhaps modification or the equivalent variations made based on conventional means on it of those skilled in the art all drops in the protection domain of requirement of the present invention.

Claims

1. automatic blackboard eraser, comprise be installed on blackboard up and down both sides guider and with the blackboard eraser of described guider driving coupling, it is characterized in that: described blackboard eraser comprises long and narrow enclosed box body, the two ends of described box body are equipped with motion, the middle part that described box body is close to blackboard one side has the dust entrance, fixedly there is wool felt the both sides of described dust entrance, on the relative sidewall of described box body dust entrance dust absorption fan is installed, the outside of described dust absorption fan is equipped with the ash discharge passage, and the bottom of described ash discharge passage is equipped with ash collecting box.

2. automatic blackboard eraser according to claim 1, it is characterized in that: described guider comprises parallel optical axis and gear band, the two ends of described box body have the slide block that cooperates with described optical axis, and described motion comprises the gear that cooperates with described gear band and the motor that is used for driven wheel.

3. automatic blackboard eraser according to claim 1 and 2, it is characterized in that: the two ends of described guider also are equipped with limit switch.