CN205705890U - Automatic dust removing powder blackboard eraser - Google Patents
Automatic dust removing powder blackboard eraser Download PDFInfo
- Publication number
- CN205705890U CN205705890U CN201620255890.5U CN201620255890U CN205705890U CN 205705890 U CN205705890 U CN 205705890U CN 201620255890 U CN201620255890 U CN 201620255890U CN 205705890 U CN205705890 U CN 205705890U
- Authority
- CN
- China
- Prior art keywords
- housing
- blackboard eraser
- people
- shutter
- font
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- 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
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Abstract
The utility model discloses a kind of automatic dust removing powder blackboard eraser, including housing and ' people ' the font blackboard eraser, motor, fan, shutter and the filter bag that are positioned at housing.Housing is cylindric, the bottom of housing is provided with the bottom of band buckle, ' people ' font blackboard eraser, motor and shutter order arrange and are fixed on the inwall of housing, the surface of ' people ' font blackboard eraser is higher than the end face of housing, fan is connected on motor output shaft, filter bag is between shutter and bottom, and filter bag is held in the draw-in groove of shutter frame.Its overall structure is simple, lightweight, low cost, and the suitability is good, easy to use, can collect chalk dust quickly and efficiently, alleviates chalk ash pollution, and wiping process frictional force is little, and wiping is easily, flexibly.
Description
Technical field
This utility model relates to a kind of blackboard blackboard eraser, particularly to a kind of automatic dust removing powder plate that can automatically collect dust
Wipe, belong to office appliance field.
Background technology
The chalk of present domestic use mainly has common chalk and dust-free chalk two kinds, and main component is calcium carbonate, stone
Lime stone and calcium sulfate Gypsum Fibrosum or containing a small amount of calcium oxide.
Common chalk is made up of Gypsum Fibrosum, and its chemical composition is calcium sulfate.The chemical formula of calcium sulfate is CaSO4.Fusing point 1450
Degree, relative density 2.96, it is insoluble in water.Its dihydrate CaSO4.2H2O is commonly called as Gypsum Fibrosum or Gypsum Fibrosum.Calcium sulfate stable performance
Not having toxicity, have certain harm to skin, teacher is in teaching process, and chalk dust inevitably sticks on hand, meanwhile,
Float on the granule dust in air also can fall at teacher's hair, on the face with on neck, skin membrane is had stimulation, if summer-heat
It is met sweat solution and produces alkaline matter, can be bigger to Mucocutaneous stimulation, and Long Term Contact chalk dust can make skin become dry
Dry, coarse, and with sensation of scratching where it itches, severe patient also can cause acne, folliculitis, pyoderma, chapped skin and a large amount of hair to take off
Fall, affect or interfere with normal work and the life of teacher.
Dust-free chalk belongs to the improvement product of common chalk, it is intended to eliminate dust pollution.It is to add oil in common chalk
Lipid or polyalcohols material make binding agent, add the filler that proportion is bigger, such as clay, marl, cement etc., make chalk dust
Proportion and volume increase, cause dust to accelerate to fall, be difficult to the effect dispersed, but in actual applications, the method be to chalk
The inhibitory action of dust is the most fairly obvious.
Field research and teach during, 45-50 minute write and draw explanation often make teacher on hand, sleeve
On, even all leave one layer of white chalk dust on hair, shoulder, along with teaching all the year round, while constantly consuming number chalk,
The most inevitably suck a large amount of dirt powder from nostril, healthy to teacher brings considerable influence.
Then, design a kind of can the blackboard eraser of automatic dust removing powder, just become the problem that this utility model is wanted to solve.
Summary of the invention
In view of the foregoing and not enough, this utility model aims to provide one and can quickly, conveniently, safely by chalk produce
The automatic dust removing powder blackboard eraser that raw dust is removed, to facilitate teaching process, it is to avoid dirt powder pollutes, it is ensured that teacher in long-term teaching,
Student's is healthy.
This utility model is achieved through the following technical solutions:
A kind of automatic dust removing powder blackboard eraser, including housing be positioned at ' people ' font blackboard eraser of housing, motor, fan, BAIYE
Window and filter bag；Housing is cylindric, and the bottom of housing is provided with the bottom of band buckle, and uniform ventilation holes is distributed on bottom；
' people ' font blackboard eraser, motor and shutter order arrange and are fixed on the inwall of housing, and ' people ' font blackboard eraser is positioned at housing top
The opening part in portion, the surface of ' people ' font blackboard eraser is higher than the end face of housing；Motor is provided with switch, and switch is fixed on outside housing
On wall；Fan is connected on motor output shaft；Filter bag is between shutter and bottom, and filter bag is held in shutter frame
Draw-in groove in.
Automatic dust removing powder blackboard eraser, also includes that three universal wheels, three universal wheels are evenly distributed on case top opening part
On outer wall, three universal wheels are supported on the opening part of case top, and the wheel face height of universal wheel is positioned at ' people ' font blackboard eraser surface
And between housing end face.
The beneficial effect of automatic dust removing powder blackboard eraser described in the utility model includes:
1, chalk dust can be collected quickly and efficiently, alleviate chalk ash pollution, it is to avoid dirt powder flies away everywhere；
2, can remove dead angle, make blackboard-cleaning cleaner, more flexible, wiping process frictional force is little, and wiping is light；
3, overall structure is simple, and lightweight, low cost, the suitability is good, easy to use.
Accompanying drawing explanation
Fig. 1 is structural blast figure of the present utility model；
Fig. 2 is combinative structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings 1, this utility model is further described by Fig. 2:
A kind of automatic dust removing powder blackboard eraser described in the utility model, including 2, three universal wheels 3 of housing and be positioned at housing 2
Interior ' people ' font blackboard eraser 9, motor 7, fan 6, shutter 5 and filter bag 4.
Housing 2 is cylindric, and the bottom of cylinder shell 2 is provided with the bottom 1 of band buckle 13, and bottom 1 is provided with uniformly
Ventilation holes.Housing 2 and bottom 1 are plastic, and processing is simple, lighter in weight.Bottom 1 can be easily held in by buckle 13
On the bottom surface of housing 2.
' people ' font blackboard eraser 9, motor 7 and shutter 5 order arrange and are fixed on the inwall of housing 2, wherein, and ' people ' word
Shape blackboard eraser 9 utilizes contacting of edge and housing 2, is connected and fixed to the opening part at housing 2 top.Motor 7 utilizes support 8 to fix
On the central axis of housing 2, shutter 5 is then overall to be blocked and is sealedly connected on the cylindrical channel inwall of housing 2.For protecting
Card wiping process, the surface of ' people ' font blackboard eraser 9 is higher than the end face of housing 2.For convenience of using, motor 7 is additionally provided with switch
11, switch 11 is fixed on the outer wall of housing 2, and fan 6 is connected on motor output shaft, wind direction alignment shutter 5 side of fan 6
To.Filter bag 4 is between shutter 5 and bottom 1, and filter bag 4 is held in the draw-in groove 12 of shutter 5 frame, to facilitate
The dismounting of filter bag 4 later stage and cleaning.For reducing frictional resistance, improve wiping motility, on the outer wall of housing 2 top open part also
Being evenly distributed with three universal wheels 3, three universal wheels 3 are supported on the opening part of housing 2, and housing 2 entirety can be by universal wheel 3
Roll and slide on wiping surface, and universal wheel wheel face height is positioned between ' people ' font blackboard eraser surface and housing end face, thus not
' people ' the font blackboard eraser 9 wiping process on blackboard surface can be affected.
Time specifically used, first, by switch 11 unlatching motor 7, fan 6 air draft on rear side of housing 2, shutter 5 is opened；
Then, three universal wheels 3 being supported on the surface of blackboard, in artificial moving process, along with the rotation of universal wheel 3, housing 2 exists
Sliding in blackboard surface, ' people ' font blackboard eraser 9 completes the wiping to blackboard surface, then, affected by fan 6 air draft, and housing is opened
Forming negative pressure at Kou, the dirt pruinescence under wiping is drawn in housing 2, enters in filter bag 4 by shutter 5, through filter bag 4
After filtration, cleaned air is discharged by the ventilation holes of bottom 1, and dirt powder filtered, it is to avoid the dirt powder pollution in wiping process.When
When need not wiping, switch 11 closedown, shutter 5 is closed, and takes off bottom 1 by buckle 13, and by filter bag 4 by draw-in groove 12
Pull down, so that it may filter bag 4 is carried out or changes.
Claims (2)
1. an automatic dust removing powder blackboard eraser, it is characterised in that include housing and be positioned at ' people ' font blackboard eraser of housing, motor,
Fan, shutter and filter bag；Described housing is cylindric, and the bottom of housing is provided with the bottom of band buckle, is distributed on bottom
Uniform ventilation holes；Described ' people ' font blackboard eraser, motor and shutter order arrange and are fixed on the inwall of housing, ' people ' word
Shape blackboard eraser is positioned at the opening part of case top, and the surface of ' people ' font blackboard eraser is higher than the end face of housing；Described motor is provided with out
Closing, switch is fixed on the outer wall of housing；Described fan is connected on motor output shaft；Described filter bag is positioned at shutter and the end
Between lid, filter bag is held in the draw-in groove of shutter frame.
Automatic dust removing powder blackboard eraser the most according to claim 1, it is characterised in that also include three universal wheels, described three
Universal wheel is evenly distributed on the outer wall of case top opening part, and three universal wheels are supported on the opening part of case top, universal
The wheel face height of wheel is positioned between ' people ' font blackboard eraser surface and housing end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620255890.5U CN205705890U (en) | 2016-03-30 | 2016-03-30 | Automatic dust removing powder blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620255890.5U CN205705890U (en) | 2016-03-30 | 2016-03-30 | Automatic dust removing powder blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205705890U true CN205705890U (en) | 2016-11-23 |
Family
ID=57312607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620255890.5U Expired - Fee Related CN205705890U (en) | 2016-03-30 | 2016-03-30 | Automatic dust removing powder blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205705890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320275A (en) * | 2022-08-29 | 2022-11-11 | 刘耕 | Blackboard chalk groove |
-
2016
- 2016-03-30 CN CN201620255890.5U patent/CN205705890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320275A (en) * | 2022-08-29 | 2022-11-11 | 刘耕 | Blackboard chalk groove |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170330 |