CN106142939A - A kind of chalkboard eraser with chalk ash collection storehouse - Google Patents
A kind of chalkboard eraser with chalk ash collection storehouse Download PDFInfo
- Publication number
- CN106142939A CN106142939A CN201510179402.7A CN201510179402A CN106142939A CN 106142939 A CN106142939 A CN 106142939A CN 201510179402 A CN201510179402 A CN 201510179402A CN 106142939 A CN106142939 A CN 106142939A
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- CN
- China
- Prior art keywords
- equipment compartment
- shell
- filter
- storehouse
- chalkboard eraser
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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.)
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Abstract
A kind of chalkboard eraser with chalk ash collection storehouse, base plate outer wall at shell is provided with the strip rub piece of one or more, shell hollow, round rub piece, multiple suction hole communicated with shell endoporus is set on base plate, equipment compartment is set in the shell of chalkboard eraser, one of equipment compartment is provided with powder cabin lid, filter is set in equipment compartment and filters chalk dust, during wiping chalk ash, open switch, make booster fan work, chalk dust is sucked, after being filtered, chalk dust falls in chalk ash collection storehouse, and air intensified blower fan supercharging after-blow goes out chalkboard eraser.
Description
Technical field
The present invention relates to that a kind of teacher uses in teaching process can suck chalk dust with chalk ash collection storehouse
Chalkboard eraser, belongs to the optimisation technique of chalkboard eraser.
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 provide a kind of chalkboard eraser that can automatically collect chalk dust.
The technical scheme is that a kind of chalkboard eraser with chalk ash collection storehouse, 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；Being provided with the equipment compartment 2 of cylindrical hollow in the enclosure, the both ends open of equipment compartment, at shell
Being respectively provided with the equipment opening 14 corresponding with the both ends open of equipment compartment on two pieces of relative short side plates, equipment compartment bottom sets
Have one piece of demarcation strip 3, make a part for equipment compartment be positioned at below demarcation strip, the edge along demarcation strip 3 be provided with to
Lower prominent surrounding edge, is put into equipment compartment and demarcation strip in shell, makes the both ends open of equipment compartment facing to corresponding on shell
Equipment opening, described equipment compartment and demarcation strip are pressed onto on the base plate of shell by surrounding edge, make the suction hole position on base plate
In surrounding edge endoporus；Multiple suction powder hole 21 is set on the equipment compartment diapire below demarcation strip, enables chalk dust to pass through
Inhale access arrangement storehouse, powder hole；Described automatically inhale powder formula chalkboard eraser also include powder cabin lid 4, filter 5, supercharging storehouse 6,
Booster fan 7；Supercharging storehouse is the hollow cylindrical of both ends open, is provided with the support to inner process at supercharging storehouse inwall, increases
One end of pressure fan is inserted support and is fixed；Filter is the hollow cylindrical that one end open is closed in one end, the opening of filter
Holding tapered, the external diameter of the vertex of a cone is identical with the internal diameter of equipment compartment, and both form tight fit, the hollow cylindrical portion of filter
The diameter divided is less than the diameter of bore of equipment compartment；It is provided with the support platform to inner process, at equipment compartment at equipment compartment inwall
Cover powder cabin lid 4 in one end open, form chalk ash collection storehouse at powder cabin lid and the equipment compartment endoporus supported between platform,
Filter and supercharging storehouse and the booster fan fitted together are filled in equipment compartment from the other end opening of equipment compartment successively,
The blind end making filter arrives to support on platform, and the air inlet end face in supercharging storehouse is pushed against the tapered open end of filter, makes
The inlet end of booster fan is towards filter, it is to avoid chalk dust is directly gone here and there into supercharger, inhales powder hole and is positioned at filter and sets
In space between standby storehouse；Being additionally provided with battery in the enclosure, described battery is connected with booster fan by power line.
It is provided with fan cover 8 away from the other end of powder cabin lid, between supercharging storehouse and fan cover and be positioned at wind at equipment compartment
Equipment compartment wall above dividing plate is provided with steam vent, and the air that booster fan sucks is discharged to shell by steam vent, is divided
In the plenum space that the surrounding edge of dividing plate and demarcation strip is formed, the wall of plenum space is provided with venthole 15, enters
The air of plenum space is discharged by venthole 15 again.
Described venthole 15 is provided on the base plate of plenum space, enables the air-flow of plenum space by giving vent to anger
Shell is discharged in hole.
The shirt rim 16 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.
Equipment compartment is positioned at the height height less than the surrounding edge of demarcation strip of demarcation strip section below.
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.
Described powder cabin lid and fan cover are provided with draw ring away from the outer wall of equipment compartment.
Beneficial effect
1, arranging equipment compartment in the shell of chalkboard eraser, one of equipment compartment is provided with powder cabin lid, arranges in equipment compartment
Filter filters chalk dust, during wiping chalk ash, opens switch, makes booster fan work, will
Chalk dust sucks, and after being filtered, chalk dust falls in chalk ash collection storehouse, the intensified wind of air
Machine supercharging after-blow goes out chalkboard eraser；
2, the air draught of blowout in chalkboard eraser, forms one after the shirt rim water conservancy diversion of bottom edge around chalkboard eraser
Individual airflow curtain, prevents chalk dust from outwards flying upward.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the right view of the present invention；
Fig. 3 is the perspective cross section schematic diagram of the present invention；
Fig. 4 is the figure that pops of the present invention.
Detailed description of the invention
As shown in Figure 1 and Figure 4, a kind of chalkboard eraser with chalk ash collection storehouse, at base plate 11 outer wall of shell 1
It is provided with the strip rub piece 12 of one or more, shell hollow, multiple and shell endoporus is set on base plate round rub piece
The suction hole 13 communicated.
Being provided with the equipment compartment 2 of cylindrical hollow in the enclosure, the both ends open of equipment compartment, in two pieces of short sides that shell is relative
Being respectively provided with the equipment opening 14 corresponding with the both ends open of equipment compartment on plate, equipment compartment bottom is provided with one piece of demarcation strip 3,
The part making equipment compartment is positioned at below demarcation strip, and the edge along demarcation strip 3 is provided with downward projection of surrounding edge, will
Equipment compartment and demarcation strip are put in shell, make the both ends open of equipment compartment face toward corresponding equipment opening on shell, described
Equipment compartment and demarcation strip are pressed onto on the base plate of shell by surrounding edge, make the suction hole on base plate be positioned in surrounding edge endoporus；?
Multiple suction powder hole 21 is set on the equipment compartment diapire below demarcation strip, enables chalk dust by inhaling powder hole access arrangement
Storehouse；Described powder formula chalkboard eraser of automatically inhaling also includes powder cabin lid 4, filter 5, supercharging storehouse 6, booster fan 7.
Supercharging storehouse is the hollow cylindrical of both ends open, and in supercharging storehouse, inwall is provided with the support to inner process, booster fan
One end is inserted support and is fixed；Filter is the hollow cylindrical that one end open is closed in one end, and the opening of filter is tapered,
The external diameter of the vertex of a cone 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 little
Diameter of bore in equipment compartment；It is provided with the support platform to inner process, in the one end open of equipment compartment at equipment compartment inwall
Cover powder cabin lid 4, form chalk ash collection storehouse at powder cabin lid and the equipment compartment endoporus supported between platform, by filter and
The supercharging storehouse fitted together and booster fan fill in equipment compartment from the other end opening of equipment compartment successively, supercharging storehouse and setting
Inwall between standby storehouse forms tight fit, makes the blind end of filter arrive to support on platform, and the air inlet end face in supercharging storehouse supports
Tightly in the tapered open end of filter, make the inlet end of booster fan towards filter, it is to avoid chalk dust is directly gone here and there into increasing
Depressor, inhales in space between filter and equipment compartment, the powder hole；It is additionally provided with battery, described battery in the enclosure
It is connected with booster fan by power line.
During wiping chalk ash, opening booster fan and make its work, the chalk dust that rub piece is wiped is made by the suction of booster fan
With, the suction hole around rub piece enters the space between wind dividing plate and base plate, then the suction powder hole from equipment bulkhead is entered
Entering in the space between equipment compartment and filter, due to the filtration of filter, chalk dust can not enter in filter
Kong Zhong, has been isolated in the space between filter and equipment compartment, and air flows into booster fan from filter endoporus,
From blowout shell after supercharging.Chalk dust under gravity, can automatically fall into chalk ash collection storehouse.
Be provided with fan cover at equipment compartment away from the other end of powder cabin lid, between supercharging storehouse and fan cover and be positioned at wind every
Equipment compartment wall above plate is provided with steam vent, and the air that booster fan sucks is discharged to shell, separation by steam vent
In the plenum space that the surrounding edge of plate and demarcation strip is formed, the wall of plenum space is provided with venthole 15, enters and increase
The air in pressure space is discharged by venthole 15 again.
Described venthole 15 is provided on the base plate of plenum space, enables the air-flow of plenum space by giving vent to anger
Shell is discharged in hole.
The shirt rim 16 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, the air-flow discharged from venthole, under the guiding function of shirt rim, one air curtain will be formed in base plate surrounding, prevent
Chalk dust flies upward everywhere, and under the suction of booster fan, air curtain and chalk dust all can be inhaled into equipment compartment.
Equipment compartment is positioned at the height height less than the surrounding edge of demarcation strip of demarcation strip section below.
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, for indicating the position in chalk ash collection storehouse, generally, powder
The position of pen ash collecting bin is contrary with arrow mark one end upwards, and by arrow mode upward, chalkboard eraser is attached to blackboard
Time upper, in equipment compartment, the chalk dust of accumulation falls into downwards chalk ash collection storehouse under gravity automatically.
Described powder cabin lid and fan cover are provided with draw ring away from the outer wall of equipment compartment, and when chalk ash collection storehouse, Nei Ji has chalk
During ash, open powder cabin lid by draw ring, chalk dust is outwelled, then powder cabin lid lid is returned.
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., with the chalkboard eraser in chalk ash collection storehouse, base plate (11) outer wall in shell (1) is provided with one or more
Strip rub piece (12), shell hollow, it is characterised in that: arrange on base plate in multiple and shell round rub piece
The suction hole (13) that hole communicates；It is provided with the equipment compartment (2) of cylindrical hollow in the enclosure, the both ends open of equipment compartment,
Two pieces of short side plates that shell is relative are respectively provided with the equipment opening (14) corresponding with the both ends open of equipment compartment, if
Standby bottom, storehouse is provided with one piece of demarcation strip (3), makes a part for equipment compartment be positioned at below demarcation strip, along demarcation strip (3)
Edge be provided with downward projection of surrounding edge, equipment compartment and demarcation strip are put in shell, make the two ends of equipment compartment open
Mouth is facing to equipment opening corresponding on shell, and described equipment compartment and demarcation strip are pressed onto on the base plate of shell by surrounding edge, make
Suction hole on base plate is positioned in surrounding edge endoporus；Multiple suction powder hole is set on the equipment compartment diapire below demarcation strip
(21), enable chalk dust by inhaling access arrangement storehouse, powder hole；Described powder formula chalkboard eraser of automatically inhaling also includes powder cabin
Lid (4), filter (5), supercharging storehouse (6) and booster fan (7)；Supercharging storehouse is the hollow cylindrical of both ends open,
In supercharging storehouse, inwall is provided with the support to inner process, and one end of booster fan is inserted support and fixed；Filter is an end seal
Closing the hollow cylindrical of one end open, the opening of filter is tapered, and the external diameter of the vertex of a cone is identical with the internal diameter of equipment compartment,
Both form tight fit, and the diameter of the hollow cylindrical part of filter is less than the diameter of bore of equipment compartment；In equipment compartment
Wall is provided with the support platform to inner process, covers powder cabin lid (4), in powder cabin lid and support in the one end open of equipment compartment
Equipment compartment endoporus between platform forms chalk ash collection storehouse, the supercharging storehouse by filter and fitted together and booster fan
Fill in equipment compartment from the other end opening of equipment compartment successively, make the blind end of filter arrive to support on platform, supercharging storehouse
Air inlet end face is pushed against the tapered open end of filter, makes the inlet end of booster fan towards filter, it is to avoid chalk dust
Directly go here and there into supercharger, inhale in space between filter and equipment compartment, the powder hole；It is additionally provided with battery in the enclosure,
Described battery is connected with booster fan by power line.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 1, it is characterised in that: equipment compartment away from
The other end of powder cabin lid is provided with fan cover (8), between supercharging storehouse and fan cover and be positioned at the equipment above wind dividing plate
Bulkhead face is provided with steam vent, and the air that booster fan sucks is discharged to shell, demarcation strip and demarcation strip by steam vent
The plenum space that formed of surrounding edge in, the wall of plenum space is provided with venthole (15), enters plenum space
Air is discharged by venthole (15) again.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 2, it is characterised in that: described venthole
(15) it is provided on the base plate of plenum space, enables the air-flow of plenum space to discharge shell by venthole.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 2, it is characterised in that: along the edge of base plate
The shirt rim (16) arranged downwards and extend internally, the height of described shirt rim is less than the height of rub piece.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 1, it is characterised in that: equipment compartment is positioned at point
The height of dividing plate section below is less than the height of the surrounding edge of demarcation strip.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 1, it is characterised in that: filter used
Filter paper or filter cotton make.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 1, it is characterised in that: it is provided with on shell
On and off switch, on and off switch controls whether battery connects with booster fan.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 1, it is characterised in that: at the roof of shell
Upper setting arrow mark upwards.
Chalkboard eraser with chalk ash collection storehouse the most according to claim 2, it is characterised in that: described powder cabin lid
It is provided with draw ring away from the outer wall of equipment compartment with fan cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179402.7A CN106142939A (en) | 2015-04-14 | 2015-04-14 | A kind of chalkboard eraser with chalk ash collection storehouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179402.7A CN106142939A (en) | 2015-04-14 | 2015-04-14 | A kind of chalkboard eraser with chalk ash collection storehouse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106142939A true CN106142939A (en) | 2016-11-23 |
Family
ID=58057766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510179402.7A Pending CN106142939A (en) | 2015-04-14 | 2015-04-14 | A kind of chalkboard eraser with chalk ash collection storehouse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106142939A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85203567U (en) * | 1985-08-30 | 1986-05-07 | 高宝林 | Electric dust catching eraser |
| JPH0867096A (en) * | 1994-08-29 | 1996-03-12 | Toyo Denshoku Kk | Board erasure tool |
| CN2448581Y (en) * | 2000-08-08 | 2001-09-19 | 王中华 | Electricity charging type electrostatic suction blackboard eraser |
| CN201073884Y (en) * | 2007-07-18 | 2008-06-18 | 于家博 | Electric dust-absorbing blackboard eraser |
| CN202389067U (en) * | 2011-12-21 | 2012-08-22 | 刘娟 | Electric blackboard eraser with dust collector |
| CN203267592U (en) * | 2013-05-28 | 2013-11-06 | 赣南医学院 | Electric dust-collection blackboard eraser applied to teaching |
| CN204736634U (en) * | 2015-04-14 | 2015-11-04 | 刘乐凝 | Chalkboard eraser with storehouse is collected to chalk dust |
-
2015
- 2015-04-14 CN CN201510179402.7A patent/CN106142939A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85203567U (en) * | 1985-08-30 | 1986-05-07 | 高宝林 | Electric dust catching eraser |
| JPH0867096A (en) * | 1994-08-29 | 1996-03-12 | Toyo Denshoku Kk | Board erasure tool |
| CN2448581Y (en) * | 2000-08-08 | 2001-09-19 | 王中华 | Electricity charging type electrostatic suction blackboard eraser |
| CN201073884Y (en) * | 2007-07-18 | 2008-06-18 | 于家博 | Electric dust-absorbing blackboard eraser |
| CN202389067U (en) * | 2011-12-21 | 2012-08-22 | 刘娟 | Electric blackboard eraser with dust collector |
| CN203267592U (en) * | 2013-05-28 | 2013-11-06 | 赣南医学院 | Electric dust-collection blackboard eraser applied to teaching |
| CN204736634U (en) * | 2015-04-14 | 2015-11-04 | 刘乐凝 | Chalkboard eraser with storehouse is collected to chalk dust |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |