CN203210962U - Manual blackboard cleaning device - Google Patents
Manual blackboard cleaning device Download PDFInfo
- Publication number
- CN203210962U CN203210962U CN 201320208285 CN201320208285U CN203210962U CN 203210962 U CN203210962 U CN 203210962U CN 201320208285 CN201320208285 CN 201320208285 CN 201320208285 U CN201320208285 U CN 201320208285U CN 203210962 U CN203210962 U CN 203210962U
- Authority
- CN
- China
- Prior art keywords
- dirt
- fan
- board
- gear
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title 1
- 239000000428 dust Substances 0.000 abstract description 11
- 239000004744 fabric Substances 0.000 abstract 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a manual blackboard eraser, including wiping cloth, casing, gear train and fan, the gear train with the fan is installed inside the casing, gear train one end with the fan is connected, be provided with into dirt hole on the chassis base plate, the wiping cloth sets up chassis base bottom. The utility model discloses a to the design of manual blackboard eraser structure, realized that chalk character not only can be wiped away, the chalk dust also can be absorbed moreover, has guaranteed that user's is healthy.
Description
Technical field
The utility model relates to the teaching aid equipment technical field, especially a kind of device that manually erases the board.
Background technology
Use blackboard eraser on the market to erase the board at present, just the chalk dust on the blackboard is wiped, can't take in chalk dust, dust flies in the air, and the user sucks chalk dust, can damage health.
The utility model content
The utility model proposes a kind of device that manually erases the board at the deficiencies in the prior art, and letter written with chalk not only can be wiped, and chalk dust also can be absorbed, and has guaranteed that the user's is healthy.
In order to realize above-mentioned utility model purpose, the utility model provides following technical scheme:
A kind of device that manually erases the board comprises casing, gear train and fan,
Described gear train and described fan are installed in described casing inside,
Described gear train one end is connected with described fan,
Described chassis backplane is provided with into the dirt hole.
Described casing comprises vacuum chamber, holds the dirt chamber and takes out the dirt passage,
The described dirt passage of taking out is arranged between described vacuum chamber and the described appearance dirt chamber, with described vacuum chamber and described appearance dirt chamber internal communication,
Describedly go into the dirt hole and be arranged on the base plate of described vacuum chamber,
Described wiper is arranged on described vacuum chamber base plate bottom.
Described fan is arranged on described taking out in the dirt passage,
Fixedly connected with described gear train by connecting rod in the center of described fan.
Described fan axially and described take out the dirt passage to run through direction vertical,
The described dirt width of channel of taking out is corresponding with the size of described fan.
Also comprise starting drive, described starting drive is installed in described appearance dirt top of chamber.
Described starting drive comprises lever, pole and pull bar,
Described pole bottom is fixed on described appearance dirt top of chamber,
Described pull bar and two ends are rotatably assorted respectively at described gear train and described lever,
Described lever one end end and described pull bar are rotatably assorted, and the other end is free end,
The interlude of described lever and described pole are rotatably assorted.
Described gear train is installed in inside, described appearance dirt chamber.
Described gear train comprises sector gear, gear wheel and commutating tooth wheels,
Described gear wheel and described sector gear and the engagement of described commutating tooth wheels.
Described sector gear, gear wheel and described commutating tooth wheels are rotatably assorted by connecting rod and described appearance dirt chamber internal side wall,
The circle centre position of described sector gear and described tie rod end are rotatably assorted,
Described commutating tooth wheels are fixedlyed connected with described fan center place by connecting rod.
Described commutating tooth wheels comprise pinion and ring gear,
Described pinion and described gear wheel and ring gear engagement,
Described ring gear is fixedlyed connected by connecting rod with described fan.
The utility model has realized that by the structural design to the device that manually erases the board letter written with chalk not only can be wiped, and chalk dust also can be absorbed, and has guaranteed user's healthy purpose.
Description of drawings
Fig. 1 is the structural representation of a kind of device that manually erases the board described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
A kind of device that manually erases the board as shown in Figure 1 comprises casing, gear train and fan 3,
Gear train and fan 3 are installed in casing inside,
Gear train one end is connected with fan 3,
Chassis backplane is provided with into dirt hole 111.
Casing comprises vacuum chamber 11, holds dirt chamber 12 and takes out dirt passage 13,
Take out dirt passage 13 and be arranged between vacuum chamber 11 and the appearance dirt chamber 12, with vacuum chamber 11 and appearance dirt chamber 12 internal communication,
Go into dirt hole 111 and be arranged on the base plate 112 of vacuum chamber 11,
Fixedly connected with gear train by connecting rod 31 in the center of fan 3.
Take out dirt passage 13 vertically to running through and vacuum chamber 11 and hold dirt chamber 12 internal communication, fan 3 axially with take out dirt passage 13 to run through direction vertical,
The width of taking out dirt passage 13 is corresponding with the size of fan 3.
The utility model also comprises starting drive, and starting drive is installed in and holds 12 tops, dirt chamber.
Starting drive comprises lever 41, pole 42 and pull bar 43,
Pull bar 43 is rotatably assorted respectively at gear train and lever 41 with two ends,
The interlude of lever 41 and pole 42 are rotatably assorted.
Can be at the free end direction mounting knob 7 of casing upper lever 41,
Gear train is installed in and holds 12 inside, dirt chamber.
Gear train comprises sector gear 21, gear wheel 22 and commutating tooth wheels,
The circle centre position of sector gear 21 and pull bar 43 ends are rotatably assorted,
The commutating tooth wheels are fixedlyed connected with fan 3 centers by connecting rod 6.
The commutating tooth wheels comprise pinion 23 and ring gear 24,
During use, the base plate of vacuum chamber 11 is pressed on the blackboard of letter written with chalk, hand is caught handle 7, press the free end of lever 41, the driven gear group is rotated, and motion is reached fan 3, fan 3 rotates and sucks vacuum chamber 11 with wiping the chalk dust that falls, and chalk dust enters appearance dirt chamber 12 via taking out dirt passage 13.Can offer sliding door 121 what hold dirt chamber 12, say that conveniently the calm dirt of chalk dust chamber 12 pours out.During design, between pinion 23 and the gear wheel 22 gearratio to guarantee that at least gear wheel 22 rotates all pinions 23 and rotated for three weeks.
The utility model has realized that by the structural design to the device that manually erases the board letter written with chalk not only can be wiped, and chalk dust also can be absorbed, and has guaranteed user's healthy purpose.
Claims (10)
1. the device that manually erases the board comprises wiper, it is characterized in that, also comprises casing, gear train and fan,
Described gear train and described fan are installed in described casing inside,
Described gear train one end is connected with described fan,
Described chassis backplane is provided with into the dirt hole,
Described wiper is arranged on described chassis backplane bottom.
2. a kind of device that manually erases the board according to claim 1 is characterized in that, described casing comprises vacuum chamber, holds the dirt chamber and takes out the dirt passage,
The described dirt passage of taking out is arranged between described vacuum chamber and the described appearance dirt chamber, with described vacuum chamber and described appearance dirt chamber internal communication,
Describedly go into the dirt hole and be arranged on the base plate of described vacuum chamber,
Described wiper is arranged on described vacuum chamber base plate bottom.
3. as a kind of device that manually erases the board as described in the claim 2, it is characterized in that described fan is arranged on described taking out in the dirt passage,
Fixedly connected with described gear train by connecting rod in the center of described fan.
4. as a kind of device that manually erases the board as described in the claim 3, it is characterized in that, described fan axially and described take out the dirt passage to run through direction vertical,
The described dirt width of channel of taking out is corresponding with the size of described fan.
5. as a kind of device that manually erases the board as described in the claim 2, it is characterized in that also comprise starting drive, described starting drive is installed in described appearance dirt top of chamber.
6. as a kind of device that manually erases the board as described in the claim 5, it is characterized in that described starting drive comprises lever, pole and pull bar,
Described pole bottom is fixed on described appearance dirt top of chamber,
Described pull bar and two ends are rotatably assorted respectively at described gear train and described lever,
Described lever one end end and described pull bar are rotatably assorted, and the other end is free end,
The interlude of described lever and described pole are rotatably assorted.
7. as a kind of device that manually erases the board as described in the claim 2, it is characterized in that described gear train is installed in inside, described appearance dirt chamber.
8. as a kind of device that manually erases the board as described in the claim 1 to 7, it is characterized in that described gear train comprises sector gear, gear wheel and commutating tooth wheels,
Described gear wheel and described sector gear and the engagement of described commutating tooth wheels.
9. as a kind of device that manually erases the board as described in the claim 8, it is characterized in that described sector gear, gear wheel and described commutating tooth wheels are rotatably assorted by connecting rod and described appearance dirt chamber internal side wall,
The circle centre position of described sector gear and described tie rod end are rotatably assorted,
Described commutating tooth wheels are fixedlyed connected with described fan center place by connecting rod.
10. as a kind of device that manually erases the board as described in the claim 9, it is characterized in that described commutating tooth wheels comprise pinion and ring gear,
Described pinion and described gear wheel and ring gear engagement,
Described ring gear is fixedlyed connected by connecting rod with described fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320208285 CN203210962U (en) | 2013-04-23 | 2013-04-23 | Manual blackboard cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320208285 CN203210962U (en) | 2013-04-23 | 2013-04-23 | Manual blackboard cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203210962U true CN203210962U (en) | 2013-09-25 |
Family
ID=49200534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320208285 Expired - Fee Related CN203210962U (en) | 2013-04-23 | 2013-04-23 | Manual blackboard cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203210962U (en) |
-
2013
- 2013-04-23 CN CN 201320208285 patent/CN203210962U/en not_active Expired - Fee Related
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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: 20130925 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |