CN103287176A

CN103287176A - Electrostatic dust-absorption blackboard eraser and electrostatic dust-absorption blackboard eraser manufacturing method

Info

Publication number: CN103287176A
Application number: CN2013101946637A
Authority: CN
Inventors: 汪希奎; 梅益; 汪希昌
Original assignee: Guizhou University
Current assignee: Guizhou Boxue Shuren Education Technology Co Ltd
Priority date: 2013-05-23
Filing date: 2013-05-23
Publication date: 2013-09-11
Anticipated expiration: 2033-05-23
Also published as: CN103287176B

Abstract

The invention discloses an electrostatic dust-absorption blackboard eraser and electrostatic dust-absorption blackboard eraser manufacturing method. The electrostatic dust-absorption blackboard eraser comprises a shell, the shell comprises an upper shell body and a lower shell body which can be connected vertically, dust absorbing holes are formed in the upper shell body, a motor is arranged in the lower shell body, an output shaft of the motor is connected with a rotating rod, silk is wound on the rotating rod, a dust absorbing tube is mounted outside the rotating rod, the silk wound on the rotating rod is in contact with an inner wall of the dust absorbing tube, the rotating rod is driven to rotate by the motor, the silk on the rotating rod and the inner wall of the dust absorbing tube arranged outside the rotating rod rub mutually to generate static electricity, and chalk dust is absorbed on the wall of the dust absorbing tube by the aid of the static electricity on the dust absorbing tube, so that harms brought by dust are reduced. Compared with the prior art, the electrostatic dust-absorption blackboard eraser has the advantages of simple structure, skillful design, low cost, capability of guaranteeing safety and health of users and the like.

Description

A kind of preparation method of electrostatic precipitation blackboard eraser and device thereof

Technical field

The preparation method of a kind of electrostatic precipitation blackboard eraser of the present invention and device thereof belong to technical field of teaching instruments.

Background technology

At present, at secondary and high school, the teacher is to use chalk to write at blackboard when giving lessons and teaches, whenever blackboard is write and all will be used blackboard eraser to clear up when full, blackboard eraser produces a lot of chalk dusts when erasing the board, the chalk dust that flies away everywhere not only causes Faculty and Students to suck more chalk dust easily easily and causes PUD D, and influences health, so there is deficiency in existing blackboard eraser.

Summary of the invention

The objective of the invention is: provide a kind of simple in structure, design is ingenious, easy and simple to handle, preparation method and the device thereof of a kind of electrostatic precipitation blackboard eraser that can draw chalk dust, to overcome the deficiencies in the prior art.

The present invention is achieved in that a kind of preparation method of electrostatic precipitation blackboard eraser, comprise and adopt up and down two attachable upper casings and lower casing as the shell of electrostatic precipitation blackboard eraser, be provided with ash absorbing hole at upper casing, in lower casing, be provided with motor, the output shaft of motor is connected with rotary bar, be wound with silk at rotary bar, outside at rotary bar is equipped with sweep-up pipe, the silk that twines on the rotary bar contacts with the inwall of sweep-up pipe, rotate by the motor drives rotary bar, the inwall phase mutual friction of the silk on the rotary bar and the sweep-up pipe that is arranged on the rotary bar outside and produce static, utilize the static on the sweep-up pipe that chalk dust is adsorbed on the tube wall of sweep-up pipe, thereby reduce the harm that dust brings.

Sweep-up pipe is rubber tube or glass tube.

A kind of electrostatic precipitation blackboard eraser, the electrostatic precipitation blackboard eraser is connected to form by upper casing and lower casing, be provided with ash absorbing hole at upper casing, at lower casing motor is set, an end of motor is connected with battery, and the other end of motor is connected with turning cylinder by motor output shaft, turning cylinder is provided with silk, outside at turning cylinder is equipped with sweep-up pipe, and the silk on turning cylinder is connected with the inwall of sweep-up pipe, and lower casing is provided with cotton brush.

Sweep-up pipe is rubber tube or glass tube.

Motor and battery are all crossed on the cap that screw is fixed on lower casing.

Battery is provided with the switch that the control motor rotates.

Battery is connected with the battery jack by data wire and charges.

Upper casing is provided with handle.

Owing to adopted technique scheme, in use, at first open switch, motor work, the motor drives turning cylinder rotates, and produces static when the silk on the turning cylinder contacts friction with the inwall of sweep-up pipe after, chalk dust can be adsorbed on the sweep-up pipe; The present invention compared with prior art, the present invention not only has simple in structure, designs ingeniously, and cost is low, can guarantee user of service's advantages such as safety and Health.

Description of drawings.

Fig. 1 is structural representation of the present invention;

Fig. 2 is upper shell internal structure schematic diagram of the present invention;

Fig. 3 is lower house internal structure schematic diagram of the present invention.

Description of reference numerals: 1-upper casing, 2-lower casing, 3-ash absorbing hole, 4-motor, 5-battery, 6-turning cylinder, 7-silk, 8-sweep-up pipe, 9-screw, 10-switch, 11-battery jack, 12-handle, the cotton brush of 13-.

The specific embodiment.

The present invention is described in further detail below in conjunction with drawings and Examples, but not as limitation of the present invention.

Embodiments of the invention: a kind of preparation method of electrostatic precipitation blackboard eraser, comprise and adopt up and down two attachable upper casings and lower casing as the shell of electrostatic precipitation blackboard eraser, be provided with ash absorbing hole at upper casing, in lower casing, be provided with motor, the output shaft of motor is connected with rotary bar, be wound with silk at rotary bar, outside at rotary bar is equipped with sweep-up pipe, the silk that twines on the rotary bar contacts with the inwall of sweep-up pipe, rotate by the motor drives rotary bar, the inwall phase mutual friction of the silk on the rotary bar and the sweep-up pipe that is arranged on the rotary bar outside and produce static, utilize the static on the sweep-up pipe that chalk dust is adsorbed on the tube wall of sweep-up pipe, thereby reduce the harm that dust brings.

Sweep-up pipe is rubber tube or glass tube.

A kind of electrostatic precipitation blackboard eraser, it is characterized in that: the electrostatic precipitation blackboard eraser is connected to form by upper casing 1 and lower casing 2, be provided with ash absorbing hole 3 at upper casing 1, at lower casing 2 motor 4 is set, one end of motor 4 is connected with battery 5, and the other end of motor 4 is connected with turning cylinder 6 by motor output shaft, and turning cylinder 6 is provided with silk 7, in the outside of turning cylinder 6 sweep-up pipe 8 is installed, the silk 7 on turning cylinder 6 is connected with the inwall of sweep-up pipe 8; Lower casing 2 is provided with cotton brush 13.

Sweep-up pipe 8 is rubber tube or glass tube, when adopting rubber tube to replace glass tube, twines the fur material on the turning cylinder 6.

Motor 4 and battery 5 are all crossed on the cap that screw 9 is fixed on lower casing 2.

Battery 5 is provided with the switch 10 that control motor 4 rotates.

Battery 5 is connected with battery jack 11 by data wire and charges.

Upper casing 1 is provided with handle 12.

Motor 4 used in the present invention is existing product, belongs to miniature motor, can be installed in the lower casing 2, provides power by 5 pairs of motor 4 of battery, and battery 5 is the existing storage batteries of carrying out, and can charge after battery 5 power shortages.

The silk that is wrapped on the turning cylinder 6 can replace with fur.

During work, at first open switch 10, motor 4 is started working and is driven turning cylinder 6 and rotates, be arranged on silk 7 on the turning cylinder 6 friction back that contacts with the inwall of sweep-up pipe 8 and produce static, dust is drawn onto on the tube wall of sweep-up pipe 8 by ash absorbing hole 3 like this, during cleaning, directly open lower casing and clear up and get final product.

Handle 12 of the present invention makes things convenient for user's operation, and it is tight, reliable and stable that the use of screw 9 makes on the blackboard eraser lower casing connect; The triboelectrification principle is used, and makes blackboard eraser have the electrostatic precipitation function, and is safe and reliable, easy to operate; Characteristics such as that the present invention has is simple in structure, easy to operate, safe and reliable, health environment-friendly.

Claims

1. the preparation method of an electrostatic precipitation blackboard eraser, comprise and adopt up and down two attachable upper casings and lower casing as the shell of electrostatic precipitation blackboard eraser, it is characterized in that: be manufactured with ash absorbing hole at upper casing, at lower casing cotton brush is installed, in lower casing, be provided with motor, the output shaft of motor is connected with rotary bar, be wound with silk at rotary bar, outside at rotary bar is equipped with sweep-up pipe, the silk that twines on the rotary bar contacts with the inwall of sweep-up pipe, rotate by the motor drives rotary bar, the inwall phase mutual friction of the silk on the rotary bar and the sweep-up pipe that is arranged on the rotary bar outside and produce static, utilize the static on the sweep-up pipe that chalk dust is adsorbed on the tube wall of sweep-up pipe, thereby reduce the harm that dust brings.

2. the preparation method of electrostatic precipitation blackboard eraser according to claim 1, it is characterized in that: sweep-up pipe is rubber tube or glass tube.

3. electrostatic precipitation blackboard eraser, it is characterized in that: the electrostatic precipitation blackboard eraser is connected to form by upper casing (1) and lower casing (2), be provided with ash absorbing hole (3) at upper casing (1), at lower casing (2) motor (4) is set, one end of motor (4) is connected with battery (5), the other end of motor (4) is connected with turning cylinder (6) by motor output shaft, turning cylinder (6) is provided with silk (7), in the outside of turning cylinder (6) sweep-up pipe (8) is installed, the silk (7) on turning cylinder (6) is connected with the inwall of sweep-up pipe (8); Lower casing (2) is provided with cotton brush (13).

4. electrostatic precipitation blackboard eraser according to claim 3, it is characterized in that: sweep-up pipe (8) is rubber tube or glass tube.

5. electrostatic precipitation blackboard eraser according to claim 3, it is characterized in that: motor (4) and battery (5) are all crossed screw (9) and are fixed on the cap of lower casing (2).

6. electrostatic precipitation blackboard eraser according to claim 3 is characterized in that: battery (5) is provided with the switch (10) that control motor (4) rotates.

7. electrostatic precipitation blackboard eraser according to claim 3 is characterized in that: battery (5) is connected with battery jack (11) by data wire and charges.

8. electrostatic precipitation blackboard eraser according to claim 3, it is characterized in that: upper casing (1) is provided with handle (12).