CN2365085Y

CN2365085Y - Electric sucking dust blackboard eraser

Info

Publication number: CN2365085Y
Application number: CN 99220402
Authority: CN
Inventors: 戴长贵; 陈武生; 吕正良; 王爱荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-06
Filing date: 1999-04-06
Publication date: 2000-02-23
Anticipated expiration: 2009-04-06

Abstract

The utility model relates to an electric dust suction blackboard eraser. The utility model is characterized in that a motor which drives a brush head shaft to be rotated is installed at the front upper part of a cavity-shaped framework body, and the rear part of the cavity-shaped framework body can be used as a handle. The lower end of the brush head shaft is provided with a brush head assembly, and the middle part of an inner cavity of the body is provided with a dust filter. The rear part of the inner cavity of the body is provided with a blower motor which drives an impeller to be rotated, and the lower side of the rear part of the framework body is provided with a dust storage box. The utility model has the advantages of convenient operation, good dust removing effect and low manufacture cost.

Description

Electric dust absorption blackboard eraser

The utility model belongs to the blackboard eraser of sucking chalk powder device technical field.

Existing ordinary blackboard eraser, dust from flying during use has a strong impact on the healthy and classroom health of teachers and students, for addressing the above problem, dust-free chalk, oiliness chalk, magnet board, photoelectric display blackboard etc. have occurred.Because there are the difficult weakness of wiping and skidding in dust-free chalk, oiliness chalk, and a little less than the magnet board contrast, the photoelectricity blackboard costs an arm and a leg again, thereby all are not used widely.The patent No. be 97235669 " electrical dust-removing, dust suction, filtering type blackboard eraser " though pick-up performance is preferably arranged, its complex structure is manufactured the cost height, is difficult to equally promote.

The purpose of this utility model is that a kind of easy to use, pick-up performance good, cost is low electric dust absorption blackboard eraser will be provided, with the harm of thorough elimination chalk dust to teachers ' health.

The technical solution of the utility model is: it has the skeleton main body that a rear portion can be used as the chamber shape of handgrip, and the front upper part of this skeleton main body is recessed and be fixed with front shroud, is fixed with the brush drive motors in the front shroud.The underside of forward of skeleton main body is equipped with capping.Be equipped with on the skeleton main body by the brush head axis of brush drive motors by actuator drives, the brush head axis lower end is equipped with brush head assembly.In the inner chamber of skeleton main body middle part, dust filter unit is housed.The skeleton back body is equipped with blower motor and is contained in the impeller of this motor-driven end, and there is the windshield that is contained on the skeleton main body in impeller the place ahead.Downside in the skeleton back body is equipped with dust-collecting box, and power switch is equipped with in the rear end of skeleton main body.

The utlity model has following advantage: one is to use conveniently high efficiency; The 2nd, good dedusting effect can thoroughly be eliminated the harm of chalk dust to teachers ' health, improves teaching environment; The 3rd, simple in structure, cost of manufacture is low, is convenient to popularize in large, medium and small school.

Accompanying drawing is a positive view of the present utility model, shows its overall structure.

In the embodiment that accompanying drawing provides, the utlity model has the plastic skeleton main body 6 of a chamber shape, the rear portion downside of skeleton main body 6 is equipped with a dust-collecting box 19, forms the handgrip shape of being convenient to grip.The front upper part of skeleton main body 6 is recessed and be fixed with front shroud 8 by screw 5.Be installed with brush drive motors 7 in the front shroud 8, the shaft extension end of motor 7 is equipped with pinion 9.By sliding sleeve brush head axis 11 is installed on skeleton main body 6, brush head frame 4 is equipped with in the lower end of brush head axis 11, is installed with brush 2 by screw on the brush head frame 4, and the gear wheel 12 that is meshed with pinion 9 on the motor shaft is equipped with in brush head axis 11 upper ends.The underside of forward of skeleton main body 6 is equipped with capping 3, and capping 3 inboards are equipped with by screw thread and are adjusted circle 1.The making leaf spring 10 that is pressed in brush head axis 11 tops is installed, so that brush 2 has certain elasticity in front shroud 8.Be equipped with by filter core frame 13 in skeleton main body 6 middle part inner chambers and be contained in the dust filter unit that the element kit 14 in the filter core frame 13 constitutes, filter core frame 13 is contained on the grooved rail of skeleton main body 6 inboards.The windshield 15 that is installed on the skeleton main body 6 inboard grooved rails is also arranged at the filter rear side.Windshield 15 rear sides have and utilize fixing card 18 to be installed in the blower motor 17 at skeleton main body 6 rear portions and be contained in impeller 16 on this motor shaft.Power switch 21 and bundle conductor fixing glue ring 20 are installed in the rear end of skeleton main body 6.

Operation principle of the present utility model is: brush drive motors 7 is through the speed change of pinion 9 and gear wheel 12, and by the brush head axis 11 drive brush headstocks 4 and brush 2 rotation at a high speed, the hairbrush on the brush 2 is wiped dust fast then.Blower motor 17 impeller 16 rotation are at a high speed discharged high velocity air backward, and the negative pressure that high velocity air forms is drawn onto dust in the element kit 14, and the dust in the element kit 14 is long-pending to a certain degree falling into dust box 19 through vibrations.

Claims

1, a kind of electric dust absorption blackboard eraser, has the chamber shape skeleton main body (6) that handgrip can be made in a rear portion, it is characterized in that: the front upper part of skeleton main body (6) is recessed and be fixed with front shroud (8), brush drive motors (7) is installed in the front shroud (8), the underside of forward of skeleton main body (6) is equipped with capping (3), the brush head axis (11) that is driven by drive motors (7) is installed on skeleton main body (6), brush head axis (11) lower end is equipped with brush head assembly, in the inner chamber of skeleton main body (6) middle part, dust filter unit is housed, skeleton main body (6) rear portion is equipped with blower motor (17) and is contained in the impeller (16) of this motor (17) drive end, the place ahead of impeller (16) is equipped with windshield (15), the rear portion downside of skeleton main body (6) is equipped with dust-collecting box (19), and power switch (21) is equipped with in skeleton main body (6) rear end.

2, electric dust absorption blackboard eraser according to claim 1 is characterized in that inboard being equipped with by screw thread of capping (3) adjust circle (1).

3, electric dust absorption blackboard eraser according to claim 1 and 2 is characterized in that being equipped with the making leaf spring (10) that is pressed in brush head axis (11) top in front shroud (8).