CN204936618U - A kind of novel blackboard eraser - Google Patents
A kind of novel blackboard eraser Download PDFInfo
- Publication number
- CN204936618U CN204936618U CN201520686001.6U CN201520686001U CN204936618U CN 204936618 U CN204936618 U CN 204936618U CN 201520686001 U CN201520686001 U CN 201520686001U CN 204936618 U CN204936618 U CN 204936618U
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- China
- Prior art keywords
- gear
- gearbox
- cotton layer
- power transmission
- transmission shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of novel blackboard eraser, relate to teaching aid field, comprise drive unit and cleaning device, described drive unit is connected with cleaning device, described drive unit comprises motor and gearbox, described cleaning device comprises the first cleaning cotton layer and the second cleaning cotton layer, and the top of described gearbox is provided with protective cover, and described protective cover is provided with handle, described handle is provided with switch, described switch is connected with motor, this design, simple and reasonable, simple operation, time saving and energy saving, wiped clean, efficiency is high.
Description
Technical field
The utility model relates to teaching aid field, particularly a kind of novel blackboard eraser.
Background technology
The ordinary blackboard eraser used in school has many shortcomings, as cumbersome in wiped blackboard, wipe one piece to write full blackboard and need many time, wiping neither be very clean, often leave the vestige of white chalk, wiping simultaneously also compares effort, the efficiency of blackboard wiping sharply declines, and therefore, needs a kind of novel blackboard eraser, easy to use, wiping efficiency is high.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of novel blackboard eraser, to solve wasting time and energy of causing in prior art, and the above-mentioned multinomial defect such as the low and wiping of wiping efficiency is unclean.
For achieving the above object, the utility model provides following technical scheme: a kind of novel blackboard eraser, comprise drive unit and cleaning device, described drive unit is connected with cleaning device, described drive unit comprises motor and gearbox, described cleaning device comprises the first cleaning cotton layer and the second cleaning cotton layer, described motor is fixed on the upper end of gearbox, the first power transmission shaft is provided with in described gearbox, second driving shaft, 3rd power transmission shaft and the 4th power transmission shaft, described one end of first power transmission shaft is connected with the main shaft of motor, the inwall of the other end and gearbox is rotationally connected by bearing, described first power transmission shaft is provided with the first gear, one end of described second driving shaft and the inwall of gearbox are rotationally connected by bearing, the other end is connected with the first cleaning cotton layer through the bottom of gearbox, described second driving shaft is provided with the second gear, described second gear is meshed with the first gear, the two ends of described 3rd power transmission shaft are rotationally connected by bearing with the inwall of gearbox respectively, described 3rd power transmission shaft is provided with the 3rd gear and the 4th gear, described 3rd gear is identical with the 4th gear, described 3rd gear is meshed with the first gear, described one end of 4th power transmission shaft and the inwall of gearbox are rotationally connected by bearing, the other end is connected with the second cleaning cotton layer through the bottom of gearbox, described 4th power transmission shaft is provided with the 5th gear, described 5th gear is meshed with the 4th gear, the top of described gearbox is provided with protective cover, described protective cover is provided with handle, described handle is provided with switch, described switch is connected with motor.
Preferably, described protective cover is engraved structure.
Preferably, described first cleaning cotton layer and the second cleaning cotton layer removably connect with second driving shaft and the 4th power transmission shaft respectively.
Adopt the beneficial effect of above technical scheme to be: the novel blackboard eraser of the utility model structure, wipe
When wiping blackboard, hand-held handle, open switch, electric motor starting, drive the first drive axis, and then drive the first pinion rotation, first pinion rotation drives the second gear and the 3rd pinion rotation, second pinion rotation drives second driving shaft to rotate, and then drive the first cleaning cotton layer to rotate, 3rd pinion rotation drives the 4th gear synchronous to rotate, 4th pinion rotation and then drive the 5th pinion rotation, 5th pinion rotation and then drive the 4th drive axis, and then drive the second cleaning cotton layer to rotate, according to two external gear engagements, two gear drive directions are contrary, known, second gear is contrary with the 4th gear direction of rotation, and then drive the direction of rotation of the first cleaning cotton layer and the second cleaning cotton layer contrary, to inner rotary, wiping is carried out to blackboard surface by Electric Machine Control first cleaning cotton layer and the second cleaning cotton layer simultaneously, the vestige of powder can not be had between first cleaning cotton layer and the second cleaning cotton layer, wiped clean, pass through Electric Machine Control, first cleaning cotton layer and the second cleaning cotton layer carry out wiping simultaneously, erasing area is wide, wiping efficiency height saves manpower simultaneously, protective cover is installed in the top of gearbox, mainly motor is protected, adopt the protective cover of engraved structure simultaneously, be conducive to motor radiating, first cleaning cotton layer and the second cleaning cotton layer removably connect with second driving shaft and the 4th power transmission shaft respectively, be convenient to replacing first cleaning cotton layer and the second cleaning cotton layer, this design, simple and reasonable, simple operation, time saving and energy saving, wiped clean, efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the direction schematic diagram that the first cleaning cotton layer and the second cleaning cotton layer rotate.
Wherein, 1-motor, 2-gearbox, 3-first cleaning cotton layer, 4-second cleaning cotton layer, 5-first power transmission shaft, 6-second driving shaft, 7-the 3rd power transmission shaft, 8-the 4th power transmission shaft, 9-bearing, 10-first gear, 11-second gear, 12-the 3rd gear, 13-the 4th gear, 14-the 5th gear, 15-protective cover, 16-handle, 17-switch.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 and Fig. 2 shows detailed description of the invention of the present utility model: a kind of novel blackboard eraser, comprise drive unit and cleaning device, described drive unit is connected with cleaning device, described drive unit comprises motor 1 and gearbox 2, described cleaning device comprises the first cleaning cotton layer 3 and the second cleaning cotton layer 4, described motor 1 is fixed on the upper end of gearbox 2, the first power transmission shaft 5 is provided with in described gearbox 2, second driving shaft 6, 3rd power transmission shaft 7 and the 4th power transmission shaft 8, one end of described first power transmission shaft 5 is connected with the main shaft of motor 1, the inwall of the other end and gearbox 2 is rotationally connected by bearing 9, described first power transmission shaft 5 is provided with the first gear 10, one end of described second driving shaft 6 and the inwall of gearbox 2 are rotationally connected by bearing 9, the other end is connected with the first cleaning cotton layer 3 through the bottom of gearbox 2, described second driving shaft 6 is provided with the second gear 11, described second gear 11 is meshed with the first gear 10, the two ends of described 3rd power transmission shaft 7 are rotationally connected by bearing 9 with the inwall of gearbox 2 respectively, described 3rd power transmission shaft 7 is provided with the 3rd gear 12 and the 4th gear 13, described 3rd gear 12 is identical with the 4th gear 13, described 3rd gear 12 is meshed with the first gear 10, described one end of 4th power transmission shaft 8 and the inwall of gearbox 2 are rotationally connected by bearing 9, the other end is connected with the second cleaning cotton layer 4 through the bottom of gearbox 2, described 4th power transmission shaft 8 is provided with the 5th gear 14, described 5th gear 14 is meshed with the 4th gear 13, the top of described gearbox 2 is provided with protective cover 15, described protective cover 15 is provided with handle 16, described handle 16 is provided with switch 17, described switch 17 is connected with motor 1.
In the present embodiment, protective cover 15 is installed in the top of gearbox 2, mainly motor 1 is protected, adopt the protective cover 15 of engraved structure simultaneously, be conducive to motor 1 to dispel the heat, first cleaning cotton layer 3 and the second cleaning cotton layer 4 removably connect with second driving shaft 6 and the 4th power transmission shaft 8 respectively, are convenient to replacing first cleaning cotton layer 3 and the second cleaning cotton layer 4.
Operation principle of the present utility model, hand-held handle 16, open switch 17, motor 1 starts, the first power transmission shaft 5 is driven to rotate, and then drive the first gear 10 to rotate, first gear 10 rotates drive second gear 11 and the 3rd gear 12 rotates, second gear 11 rotates and drives second driving shaft 6 to rotate, and then drive the first cleaning cotton layer 3 to rotate, 3rd gear 12 rotates drive the 4th gear 13 synchronous axial system, 4th gear 13 rotates and then drives the 5th gear 14 to rotate, 5th gear 14 rotates and then drives the 4th power transmission shaft 8 to rotate, and then drive the second cleaning cotton layer 4 to rotate, according to two external gear engagements, two gear drive directions are contrary, known, second gear 11 is contrary with the 4th gear 13 direction of rotation, and then drive the direction of rotation of the first cleaning cotton layer 3 and the second cleaning cotton layer 4 contrary, to inner rotary, wiping is carried out to blackboard surface while of controlling the first cleaning cotton layer 3 and the second cleaning cotton layer 4 by motor 1, the vestige of powder can not be had between first cleaning cotton layer 3 and the second cleaning cotton layer 4, wiped clean, controlled by motor 1, first cleaning cotton layer 3 and the second cleaning cotton layer 4 carry out wiping simultaneously, erasing area is wide, wiping efficiency height saves manpower simultaneously.
Above-described is only preferred embodiment of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. a novel blackboard eraser, comprise drive unit and cleaning device, described drive unit is connected with cleaning device, it is characterized in that: described drive unit comprises motor and gearbox, described cleaning device comprises the first cleaning cotton layer and the second cleaning cotton layer, described motor is fixed on the upper end of gearbox, the first power transmission shaft is provided with in described gearbox, second driving shaft, 3rd power transmission shaft and the 4th power transmission shaft, described one end of first power transmission shaft is connected with the main shaft of motor, the inwall of the other end and gearbox is rotationally connected by bearing, described first power transmission shaft is provided with the first gear, one end of described second driving shaft and the inwall of gearbox are rotationally connected by bearing, the other end is connected with the first cleaning cotton layer through the bottom of gearbox, described second driving shaft is provided with the second gear, described second gear is meshed with the first gear, the two ends of described 3rd power transmission shaft are rotationally connected by bearing with the inwall of gearbox respectively, described 3rd power transmission shaft is provided with the 3rd gear and the 4th gear, described 3rd gear is identical with the 4th gear, described 3rd gear is meshed with the first gear, described one end of 4th power transmission shaft and the inwall of gearbox are rotationally connected by bearing, the other end is connected with the second cleaning cotton layer through the bottom of gearbox, described 4th power transmission shaft is provided with the 5th gear, described 5th gear is meshed with the 4th gear, the top of described gearbox is provided with protective cover, described protective cover is provided with handle, described handle is provided with switch, described switch is connected with motor.
2. a kind of novel blackboard eraser according to claim 1, is characterized in that: described protective cover is engraved structure.
3. a kind of novel blackboard eraser according to claim 1, is characterized in that: described first cleaning cotton layer and the second cleaning cotton layer removably connect with second driving shaft and the 4th power transmission shaft respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686001.6U CN204936618U (en) | 2015-08-29 | 2015-08-29 | A kind of novel blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686001.6U CN204936618U (en) | 2015-08-29 | 2015-08-29 | A kind of novel blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204936618U true CN204936618U (en) | 2016-01-06 |
Family
ID=55004066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520686001.6U Expired - Fee Related CN204936618U (en) | 2015-08-29 | 2015-08-29 | A kind of novel blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204936618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882268A (en) * | 2016-04-12 | 2016-08-24 | 宿州学院 | Blackboard eraser good in adaptability |
| CN109623593A (en) * | 2018-12-29 | 2019-04-16 | 天津市耐特家具有限公司 | Hand-held polishing grinding device |
-
2015
- 2015-08-29 CN CN201520686001.6U patent/CN204936618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882268A (en) * | 2016-04-12 | 2016-08-24 | 宿州学院 | Blackboard eraser good in adaptability |
| CN109623593A (en) * | 2018-12-29 | 2019-04-16 | 天津市耐特家具有限公司 | Hand-held polishing grinding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20160829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |