CN106274194A - A kind of chalkboard eraser that can automatically collect chalk dust - Google Patents
A kind of chalkboard eraser that can automatically collect chalk dust Download PDFInfo
- Publication number
- CN106274194A CN106274194A CN201510249844.4A CN201510249844A CN106274194A CN 106274194 A CN106274194 A CN 106274194A CN 201510249844 A CN201510249844 A CN 201510249844A CN 106274194 A CN106274194 A CN 106274194A
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- equipment compartment
- equipment
- filter
- chalk dust
- shell
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Abstract
A kind of chalkboard eraser that can automatically collect chalk dust, the base plate outer wall at shell is provided with the strip rub piece of one or more, shell hollow, arranges multiple suction hole communicated with shell endoporus round rub piece on base plate；Equipment compartment is set in the shell of chalkboard eraser, filter and supercharging storehouse are set in equipment compartment, one end of filter is pressed onto on supercharging storehouse, forms collection powder cabin, between filter and equipment compartment during using chalkboard eraser, open switch, make the booster fan in supercharging storehouse work, chalk dust is sucked, after being filtered, chalk dust is stayed in collection powder cabin, and air enters filter the most intensified blower fan supercharging after-blow and goes out chalkboard eraser.
Description
Technical field
The present invention relates to the chalkboard eraser that can automatically collect chalk dust that a kind of teacher uses in teaching process, belong to chalk
The optimisation technique wiped.
Background technology
Teacher it is frequently necessary to write with chalk on blackboard in teaching process, needs blackboard with chalkboard eraser after writing
On letter written with chalk wipe, during erasing the board, the chalk dust that chalkboard eraser has been wiped flies upward the most everywhere, pollute Zhou Bianhuan
Border, increases the difficulty of cleaning, and, even if the people erased the board makes great efforts to hold the breath to prevent from inhaling in wiping process
Enter chalk dust, the most unavoidably can suck some chalk dusts, give healthy hidden danger.
It is, thus, sought for it is a kind of it can be avoided that the chalkboard eraser that flies upward everywhere of chalk dust.
Summary of the invention
It is an object of the invention to: a kind of chalkboard eraser that can automatically collect chalk dust is provided.
The technical scheme is that a kind of chalkboard eraser that can automatically collect chalk dust, outside the base plate 11 of shell 1
Wall is provided with the strip rub piece 12 of one or more, shell hollow, arranges in multiple and shell round rub piece on base plate
The suction hole 13 that hole communicates；It is provided with the equipment compartment 2 of cylindrical hollow, the both ends open of equipment compartment in the enclosure, opens for one
Mouth end is furnished with the equipment cap 21 for provision for sealing storehouse, is respectively provided with and equipment compartment on two pieces of short side plates that shell is relative
The corresponding equipment opening 14 of both ends open, equipment compartment bottom is provided with one piece of demarcation strip 3, makes a part of position of equipment compartment
Below demarcation strip, the edge along demarcation strip 3 is provided with downward projection of surrounding edge, equipment compartment and demarcation strip is disposed
In shell, make the both ends open of equipment compartment facing to equipment opening corresponding on shell, make surrounding edge away from the edge of demarcation strip
It is pressed on base plate, makes the suction hole on base plate be positioned in surrounding edge endoporus；Arrange on equipment compartment diapire below demarcation strip
Multiple suction powder holes 22, enable chalk dust by inhaling access arrangement storehouse, powder hole；Described powder formula chalkboard eraser of automatically inhaling also wraps
Include filter 4 and supercharger 5；Supercharger is hollow cylindrical, the both ends open of supercharger, and supercharger inwall is provided with fixing
Support, booster fan 51 is fixed in supercharger by fixed support；Supercharger inserts from the one end away from equipment cap and sets
Standby storehouse, makes the inlet end of supercharger towards equipment cap；Filter is the hollow cylindrical that one end open is closed in one end, filters
The opening of device is tapered, and the external diameter of the vertex of a cone is identical with the internal diameter of equipment compartment, and both form tight fit, in filter
The diameter of empty cylindrical section is less than the diameter of bore of equipment compartment；Open equipment cap, filter is inserted from equipment cap one end
Equipment compartment, makes the tapered open end of filter withstand the inlet end of supercharger, then by equipment cap on equipment compartment opening,
Collection powder cabin is formed, it is to avoid chalk dust filters without filter and is just directly entered supercharging between filter and equipment compartment inwall
Device；Inhale powder hole 22 to be positioned on the wall of collection powder cabin；Being additionally provided with battery in the enclosure, described battery passes through power line and increasing
Pressure fan is connected.
Air-flow lid 23, air-flow lid both ends open are set at the equipment compartment opening away from equipment cap, are provided with at inlet end
Grid screen, the air-flow of supercharger outlet side ejection is blown out by grid screen.
The shirt rim 15 that edge along base plate arranges downwards and extends internally, the height of described shirt rim is less than the height of rub piece
Degree.
Leaving space between equipment compartment and base plate, described chalkboard eraser also includes the tapered hollow supercharging cover of a both ends open
6, the cone end of supercharging cover 6, is pressed on the edge of base plate, makes the air inlet on base plate be positioned at supercharging cover；Supercharging
The vertex of a cone of cover is pressed on the equipment compartment outer wall and demarcation strip inhaled around powder hole, makes the air-flow entered from air inlet enter and increases
Equipment compartment can only be flowed into from inhaling powder hole after pressure cover.
Described powder hole of inhaling is a plurality of elongated hole vertical with the axis of equipment compartment parallel to each other.
Inhale the distance between powder hole and equipment cap more than 3cm.
Filter uses filter paper or filter cotton to make.
Being provided with on and off switch on shell, on and off switch controls whether battery connects with booster fan.
The roof of shell arranges arrow mark upwards.
Beneficial effect
1, equipment compartment is set in the shell of chalkboard eraser, filter and supercharging storehouse are set in equipment compartment, filter
One end is pressed onto on supercharging storehouse, forms collection powder cabin, in the mistake using chalkboard eraser between filter and equipment compartment
Cheng Zhong, opens switch, makes the booster fan in supercharging storehouse work, and is sucked by chalk dust, through filter mistake
After filter, chalk dust is stayed in collection powder cabin, and air enters filter the most intensified blower fan supercharging after-blow and goes out chalk
Wipe.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is the upward view of the present invention；
Fig. 4 is the bottom view of the present invention；
Fig. 5 is the left view of the present invention；
Fig. 6 is the rearview of the present invention；
Fig. 7 is the figure that pops of the present invention；
Fig. 8 is the equipment compartment perspective cross section schematic diagram of the present invention.
Detailed description of the invention
As illustrated in figures 1 and 8, the chalkboard eraser of a kind of automatic collection chalk dust, base plate 11 outer wall at shell 1 sets
There is a strip rub piece 12 of one or more, shell hollow, arrange multiple with shell endoporus phase on base plate round rub piece
Logical suction hole 13.
Being provided with the equipment compartment 2 of cylindrical hollow, the both ends open of equipment compartment in the enclosure, an opening is furnished with for sealing
The equipment cap 21 in hull closure storehouse, is respectively provided with relative with the both ends open of equipment compartment on two pieces of short side plates that shell is relative
The equipment opening 14 answered, equipment compartment bottom is provided with one piece of demarcation strip 3, makes a part for equipment compartment be positioned at below demarcation strip,
Edge along demarcation strip 3 is provided with downward projection of surrounding edge, equipment compartment and demarcation strip is arranged in shell, makes to set
The both ends open in standby storehouse, facing to equipment opening corresponding on shell, makes surrounding edge be pressed on base plate away from the edge of demarcation strip, makes
Suction hole on base plate is positioned in surrounding edge endoporus；Multiple suction powder hole 22 is set on the equipment compartment diapire below demarcation strip,
Enable chalk dust by inhaling access arrangement storehouse, powder hole.
Described powder formula chalkboard eraser of automatically inhaling also includes filter 4 and supercharger 5；Supercharger is the hollow of both ends open
Cylindricality, supercharger inwall is provided with fixed support, and booster fan 51 is fixed in supercharger by fixed support, supercharging
During blower fan work, it is possible to air is sucked from inlet end, blow out from outlet side after the pressurization of intensified blower fan.
Supercharger inserts equipment compartment from the one end away from equipment cap, makes the inlet end of supercharger towards equipment cap；Filter
Close the hollow cylindrical of one end open for one end, the opening of filter is tapered, the external diameter of the vertex of a cone and equipment compartment interior
Footpath is identical, and both form tight fit, and the diameter of the hollow cylindrical part of filter is less than the diameter of bore of equipment compartment；Beat
Offer standby cap, filter is inserted from equipment cap one end equipment compartment, makes the tapered open end of filter withstand supercharger
Inlet end, then by equipment cap on equipment compartment opening, between filter and equipment compartment inwall, form collection powder cabin, keep away
Exempt from chalk dust and be just directly entered supercharger without filter filtration；Inhale powder hole 22 to be positioned on the wall of collection powder cabin, prevent powder
Ash is directly entered supercharging storehouse.
Being additionally provided with battery in the enclosure, described battery is connected with booster fan by power line.
Air-flow lid 23, air-flow lid both ends open are set at the equipment compartment opening away from equipment cap, are provided with at inlet end
Grid screen, the air-flow of supercharger outlet side ejection is blown out by grid screen.
The shirt rim 15 that edge along base plate arranges downwards and extends internally, the height of described shirt rim is less than the height of rub piece
Degree.
Leaving space between equipment compartment and base plate, described chalkboard eraser also includes the tapered hollow supercharging cover of a both ends open
6, the cone end of supercharging cover 6, is pressed on the edge of base plate, makes the air inlet on base plate be positioned at supercharging cover；Supercharging
The vertex of a cone of cover is pressed on the equipment compartment outer wall and demarcation strip inhaled around powder hole, makes the air-flow entered from air inlet enter and increases
Equipment compartment can only be flowed into from inhaling powder hole after pressure cover.
Described powder hole of inhaling is a plurality of elongated hole vertical with the axis of equipment compartment parallel to each other.
Inhaling and leave distance between powder hole and equipment cap, both distances are more than 3cm, it is to avoid when chalkboard eraser is placed, and collect powder
Chalk dust in storehouse enters in supercharging cover by inhaling powder hole.
Filter uses filter paper or filter cotton to make, it is possible to stop chalk dust to enter in filter, but air can be suitable
Enter in filter endoporus sharply.
Being provided with on and off switch on shell, on and off switch controls whether battery connects with booster fan.Open when erasing the board
Switch, booster fan works, the chalk dust wiped is carried out in inhalation device storehouse together with partial air when erasing the board
Filter, chalk dust is stayed in equipment compartment, by Air blowing shell, thus play the work preventing chalk dust from flying upward everywhere
With.
In actual application, for simplifying equipment, shell does not set on and off switch, but pressure is set at rub piece root
Power induction apparatus, after pressure inductor detects that pressure increases, passes to a small-sized control chip, control by signal
Coremaking sheet connects battery and booster fan, makes booster fan work, reaches when pressure inductor can't detect pressure signal
After time set in advance, control chip cuts off battery and the connection of booster fan.
The roof of shell arranges arrow mark upwards, makes supercharger be positioned at above arrow.On the diapire of shell
Magnet is set, blackboard arranges iron plate, enable chalkboard eraser by magnet adsorption on blackboard.When placing chalkboard eraser,
Placing by arrow mark instruction, make arrow upward, the chalk dust outside filter will drop under gravity automatically
In collection powder cabin.
When removing chalk dust, open equipment cap, enable filter and chalk dust from the opening of equipment compartment out, remove
Fall chalk dust, and clean filtering device, cleaner filter is put back in equipment compartment, cover equipment cap.
Being provided with the battery cover of battery compartment on the shell of chalkboard eraser, open battery cover and change battery, battery passes through power supply
Line is connected with booster fan.Concrete connected mode has multiple, and a kind of preferred version is: battery passes through power line by electricity
Source is delivered to the fixed support in supercharging storehouse, and position corresponding with booster fan on fixed support arranges power supply and connects
Point, after fixing booster fan, power connection points electric power connection line corresponding with on booster fan connects.
During assembling, first equipment compartment and demarcation strip are put in shell, then base plate is connected with the top of shell, then will
Supercharger, filter and collection powder cabin are inserted in equipment compartment.
Above-described embodiment is intended merely to the purposes of the interpretation present invention, and is not limitation of the present invention, this technology
The those of ordinary skill in field, in the essential scope of the present invention, makes a variety of changes or substitutes, and also should belong to this
Bright protection category.
Claims (9)
1. can automatically collect a chalkboard eraser for chalk dust, base plate (11) outer wall in shell (1) is provided with one or more
Strip rub piece (12), it is characterised in that: shell hollow, arrange multiple with shell endoporus phase on base plate round rub piece
Logical suction hole (13)；It is provided with the equipment compartment (2) of cylindrical hollow, the both ends open of equipment compartment, an opening in the enclosure
It is furnished with the equipment cap (21) for provision for sealing storehouse, two pieces of short side plates that shell is relative are respectively provided with the two ends with equipment compartment
The equipment opening (14) that opening is corresponding, equipment compartment bottom is provided with one piece of demarcation strip (3), makes a part for equipment compartment be positioned at separation
Below plate, the edge along demarcation strip (3) is provided with downward projection of surrounding edge, equipment compartment and demarcation strip is arranged in shell,
Make the both ends open of equipment compartment facing to equipment opening corresponding on shell, make surrounding edge be pressed on base plate away from the edge of demarcation strip, make
Suction hole on base plate is positioned in surrounding edge endoporus；Multiple suction powder hole (22) is set on the equipment compartment diapire below demarcation strip, makes
Chalk dust can be by inhaling access arrangement storehouse, powder hole；Described powder formula chalkboard eraser of automatically inhaling also includes filter (4) and supercharger
(5)；Supercharger is hollow cylindrical, the both ends open of supercharger, and supercharger inwall is provided with fixed support, booster fan (51)
It is fixed in supercharger by fixed support；Supercharger inserts equipment compartment from the one end away from equipment cap, makes the air inlet of supercharger
End is towards equipment cap；Filter is the hollow cylindrical that one end open is closed in one end, and the opening of filter is tapered, the vertex of a cone
External diameter is identical with the internal diameter of equipment compartment, and both form tight fit, and the diameter of the hollow cylindrical part of filter is less than equipment compartment
Diameter of bore；Open equipment cap, filter is inserted from equipment cap one end equipment compartment, makes the tapered open end of filter withstand
The inlet end of supercharger, then by equipment cap on equipment compartment opening, between filter and equipment compartment inwall, form collection powder cabin,
Avoid chalk dust to filter without filter and be just directly entered supercharger；Inhale powder hole (22) to be positioned on the wall of collection powder cabin；At shell
Inside being additionally provided with battery, described battery is connected with booster fan by power line.
The chalkboard eraser that can automatically collect chalk dust the most according to claim 1, it is characterised in that: away from equipment
The equipment compartment opening of cap arranges air-flow lid (23), air-flow lid both ends open, is provided with grid screen at inlet end, and supercharger is given vent to anger
The air-flow of end ejection is blown out by grid screen.
The chalkboard eraser that can automatically collect chalk dust the most according to claim 1, it is characterised in that: along the limit of base plate
The shirt rim (15) that edge arranges downwards and extends internally, the height of described shirt rim is less than the height of rub piece.
The chalkboard eraser that can automatically collect chalk dust the most according to claim 1, it is characterised in that: equipment compartment and the end
Leaving space between plate, described chalkboard eraser also includes tapered hollow supercharging cover (6) of a both ends open, supercharging cover (6)
The cone end, is pressed on the edge of base plate, makes the air inlet on base plate be positioned at supercharging cover；The vertex of a cone of supercharging cover is pressed on suction powder
On equipment compartment outer wall around hole and demarcation strip, can only flow into from inhaling powder hole after making the air-flow entered from air inlet enter supercharging cover
Equipment compartment.
The chalkboard eraser that can automatically collect chalk dust the most according to claim 1, it is characterised in that: described suction powder
Hole is a plurality of elongated hole vertical with the axis of equipment compartment parallel to each other.
The most according to claim 5 from can automatically collect the chalkboard eraser of chalk dust, it is characterised in that: inhale powder hole with
Distance between equipment cap is more than 3cm.
The chalkboard eraser that can automatically collect chalk dust the most according to claim 1, it is characterised in that: filter uses
Filter paper or filter cotton make.
The chalkboard eraser that can automatically collect chalk dust the most according to claim 1, it is characterised in that: set on shell
Having on and off switch, on and off switch controls whether battery connects with booster fan.
9. arrow mark upwards is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249844.4A CN106274194A (en) | 2015-05-14 | 2015-05-14 | A kind of chalkboard eraser that can automatically collect chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249844.4A CN106274194A (en) | 2015-05-14 | 2015-05-14 | A kind of chalkboard eraser that can automatically collect chalk dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106274194A true CN106274194A (en) | 2017-01-04 |
Family
ID=57631817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510249844.4A Pending CN106274194A (en) | 2015-05-14 | 2015-05-14 | A kind of chalkboard eraser that can automatically collect chalk dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106274194A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2322803Y (en) * | 1998-01-15 | 1999-06-09 | 王广然 | Chalk dust suction blackboard eraser |
| CN2707527Y (en) * | 2004-07-08 | 2005-07-06 | 景博 | Dust-absorbing blackboard eraser |
| US20060260092A1 (en) * | 2005-05-18 | 2006-11-23 | Hsi-Hur Lai | Vacuum eraser for blackboards |
| CN201095253Y (en) * | 2007-07-11 | 2008-08-06 | 王文希 | Electric blackboard eraser |
| CN203267592U (en) * | 2013-05-28 | 2013-11-06 | 赣南医学院 | Electric dust-collection blackboard eraser applied to teaching |
| CN203739504U (en) * | 2013-12-16 | 2014-07-30 | 柳州职业技术学院 | Multifunctional blackboard eraser |
-
2015
- 2015-05-14 CN CN201510249844.4A patent/CN106274194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2322803Y (en) * | 1998-01-15 | 1999-06-09 | 王广然 | Chalk dust suction blackboard eraser |
| CN2707527Y (en) * | 2004-07-08 | 2005-07-06 | 景博 | Dust-absorbing blackboard eraser |
| US20060260092A1 (en) * | 2005-05-18 | 2006-11-23 | Hsi-Hur Lai | Vacuum eraser for blackboards |
| CN201095253Y (en) * | 2007-07-11 | 2008-08-06 | 王文希 | Electric blackboard eraser |
| CN203267592U (en) * | 2013-05-28 | 2013-11-06 | 赣南医学院 | Electric dust-collection blackboard eraser applied to teaching |
| CN203739504U (en) * | 2013-12-16 | 2014-07-30 | 柳州职业技术学院 | Multifunctional blackboard eraser |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
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| WD01 | Invention patent application deemed withdrawn after publication |