CN204736634U - Chalkboard eraser with storehouse is collected to chalk dust - Google Patents
Chalkboard eraser with storehouse is collected to chalk dust Download PDFInfo
- Publication number
- CN204736634U CN204736634U CN201520228792.8U CN201520228792U CN204736634U CN 204736634 U CN204736634 U CN 204736634U CN 201520228792 U CN201520228792 U CN 201520228792U CN 204736634 U CN204736634 U CN 204736634U
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- CN
- China
- Prior art keywords
- equipment compartment
- filter
- shell
- demarcation strip
- chalkboard eraser
- 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
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Abstract
The utility model provides a chalkboard eraser with storehouse is collected to chalk dust, the strip is wiped to the rectangular shape that is equipped with more than at the bottom plate outer wall of shell, shell cavity, centering on and wiping the strip set up a plurality of and the communicating suction hole of shell hole on the bottom plate, set up equipment warehouse in chalkboard eraser's shell, one end of equipment warehouse is equipped with whitewashed cang gai, it filters the chalk dust to set up the filter in equipment warehouse, wipe the in -process of chalk dust, a switch is switched on, the work of messenger's booster fan, the chalk dust inhales, filter the back through the filter, the chalk dust falls into the chalk dust and collects in the storehouse, the air blows out chalkboard eraser after the booster fan pressure boost.
Description
Technical field
The present invention relates to the chalkboard eraser with chalk ash collection storehouse that can suck chalk dust that a kind of teacher uses in teaching process, belong to the optimisation technique of chalkboard eraser.
Background technology
Teacher often needs to write with chalk on blackboard in teaching process, write rear needs with chalkboard eraser, the letter written with chalk on blackboard to be wiped, in the process erased the board, the chalk dust that chalkboard eraser has been wiped often flies upward everywhere, pollutes surrounding enviroment, increases the difficulty of cleaning, and, even if the people erased the board makes great efforts to hold the breath to prevent from sucking chalk dust in wiping process, still unavoidably some chalk dusts can be sucked, to healthy hidden danger.
Therefore, need to find a kind of chalkboard eraser that chalk dust can be avoided to fly upward everywhere.
Summary of the invention
The object of this invention is to provide a kind of chalkboard eraser automatically can collecting chalk dust.
Technical scheme of the present invention is: a kind of chalkboard eraser with chalk ash collection storehouse, is provided with the strip rub piece 12 of one or more, shell hollow at base plate 11 outer wall of shell 1, arranges multiple suction hole 13 communicated with shell endoporus round rub piece on base plate, be 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 arrange the equipment opening 14 corresponding with the both ends open of equipment compartment respectively, equipment compartment bottom is provided with one piece of demarcation strip 3, a part for equipment compartment is made to be positioned at below demarcation strip, edge along demarcation strip 3 is provided with outstanding surrounding edge downwards, equipment compartment and demarcation strip are put in shell, make the both ends open of equipment compartment facing to equipment opening corresponding on shell, described equipment compartment and demarcation strip are pressed onto on the base plate of shell by surrounding edge, the suction hole on base plate is made to be arranged in surrounding edge endoporus, equipment compartment diapire below demarcation strip being arranged multiple suction powder hole 21, enabling chalk dust by inhaling access arrangement storehouse, powder hole, the described chalkboard eraser with chalk ash collection storehouse also comprises powder storehouse 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, and one end of booster fan is inserted support and fixed, filter is the hollow cylindrical that one end open is closed in one end, and the openend of filter 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, and the diameter of the hollow cylindrical part of filter is less than the diameter of bore of equipment compartment, the brace table to inner process is provided with at equipment compartment inwall, the one end open of equipment compartment covers powder storehouse lid 4, equipment compartment endoporus between powder Cang Gai and brace table forms chalk ash collection storehouse, filter and the supercharging storehouse fitted together and booster fan are filled in equipment compartment from the other end opening of equipment compartment successively, the blind end of filter is made to arrive on brace table, the air inlet end face in supercharging storehouse is pushed against the tapered open end of filter, make the inlet end of booster fan towards filter, chalk dust is avoided directly to go here and there into booster, inhale in the space of powder hole between filter and equipment compartment, also be provided with battery in the enclosure, described battery is connected with booster fan by power line.
Fan cover 8 is provided with away from the other end of powder Cang Gai at equipment compartment, be positioned on the equipment compartment wall above demarcation strip and be provided with steam vent between supercharging storehouse and fan cover, in the plenum space that the surrounding edge that the air that booster fan sucks is discharged to shell, demarcation strip and demarcation strip by steam vent is formed, the wall of plenum space is provided with venthole 15, and the air entering plenum space is discharged by venthole 15 again.
Described venthole 15 is located at and is positioned on the base plate of plenum space, enables the air-flow of plenum space discharge shell by venthole.
Edge along base plate is arranged downwards and the shirt rim 16 extended internally, and the height of described shirt rim is lower than the height of rub piece.
The height that equipment compartment is positioned at demarcation strip inferior portion is less than the height of the surrounding edge of demarcation strip.
Filter adopts filter paper or filter cotton to make.
Shell is provided with power switch, and whether power switch controls battery and is communicated with booster fan.
The roof of shell arranges arrow mark upwards.
Described powder Cang Gai and fan cover are provided with draw ring away from the outer wall of equipment compartment.
Beneficial effect
1, equipment compartment is set in the shell of chalkboard eraser, one of equipment compartment is provided with powder Cang Gai, metre filter chalk dust is set in equipment compartment, in the process of 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 goes out chalkboard eraser through booster fan supercharging after-blow;
2, the air draught blown out in chalkboard eraser, forms an air-flow curtain, prevents chalk dust from outwards flying upward after the shirt rim water conservancy diversion of bottom edge around chalkboard eraser.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is right view of the present invention;
Fig. 3 is perspective cross section schematic diagram of the present invention;
Fig. 4 is explosive view 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, is provided with the strip rub piece 12 of one or more, shell hollow at base plate 11 outer wall of shell 1, arrange multiple suction hole 13 communicated with shell endoporus round rub piece on base plate.
Be 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 arrange the equipment opening 14 corresponding with the both ends open of equipment compartment respectively, equipment compartment bottom is provided with one piece of demarcation strip 3, a part for equipment compartment is made to be positioned at below demarcation strip, edge along demarcation strip 3 is provided with outstanding surrounding edge downwards, equipment compartment and demarcation strip are put in shell, make the both ends open of equipment compartment facing to equipment opening corresponding on shell, described equipment compartment and demarcation strip are pressed onto on the base plate of shell by surrounding edge, the suction hole on base plate is made to be arranged in surrounding edge endoporus, equipment compartment diapire below demarcation strip being arranged multiple suction powder hole 21, enabling chalk dust by inhaling access arrangement storehouse, powder hole, the described chalkboard eraser with chalk ash collection storehouse also comprises powder storehouse 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, and one end of booster fan is inserted support and fixed, filter is the hollow cylindrical that one end open is closed in one end, and the openend of filter 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, and the diameter of the hollow cylindrical part of filter is less than the diameter of bore of equipment compartment, the brace table to inner process is provided with at equipment compartment inwall, the one end open of equipment compartment covers powder storehouse lid 4, equipment compartment endoporus between powder Cang Gai and brace table forms chalk ash collection storehouse, filter and the supercharging storehouse fitted together and booster fan are filled in equipment compartment from the other end opening of equipment compartment successively, the blind end of filter is made to arrive on brace table, the air inlet end face in supercharging storehouse is pushed against the tapered open end of filter, make the inlet end of booster fan towards filter, chalk dust is avoided directly to go here and there into booster, inhale in the space of powder hole between filter and equipment compartment, also be provided with battery in the enclosure, described battery is connected with booster fan by power line.
During wiping chalk ash, open booster fan and make its work, the chalk dust that rub piece is wiped is subject to the suction of booster fan, the space between demarcation strip and base plate is entered from the suction hole around rub piece, again from the access arrangement storehouse, suction powder hole equipment bulkhead and the space between filter, due to the filtration of filter, chalk dust can not enter in filter endoporus, be isolated in the space between filter and equipment compartment, air flows into booster fan from filter endoporus, from blowout shell after supercharging.Chalk dust under gravity, can fall into chalk ash collection storehouse automatically.
Fan cover is provided with away from the other end of powder Cang Gai at equipment compartment, be positioned on the equipment compartment wall above demarcation strip and be provided with steam vent between supercharging storehouse and fan cover, in the plenum space that the surrounding edge that the air that booster fan sucks is discharged to shell, demarcation strip and demarcation strip by steam vent is formed, the wall of plenum space is provided with venthole 15, and the air entering plenum space is discharged by venthole 15 again.
Described venthole 15 is located at and is positioned on the base plate of plenum space, enables the air-flow of plenum space discharge shell by venthole.
Edge along base plate is arranged downwards and the shirt rim 16 extended internally, the height of described shirt rim is lower than the height of rub piece, from the air-flow that venthole is discharged, one air curtain will be formed in base plate surrounding under the guiding function of shirt rim, prevent chalk dust from flying upward everywhere, under the suction of booster fan, air curtain and chalk dust all can be inhaled into equipment compartment.
The height that equipment compartment is positioned at demarcation strip inferior portion is less than the height of the surrounding edge of demarcation strip.
Filter adopts filter paper or filter cotton to make.
Shell is provided with power switch, and whether power switch controls battery and is communicated with booster fan.
The roof of shell arranges arrow mark upwards, for indicating the position in chalk ash collection storehouse, usually, the position in chalk ash collection storehouse is contrary with arrow mark one end upwards, when being attached on blackboard by arrow mode upward by chalkboard eraser, the chalk dust gathered in equipment compartment falls into chalk ash collection storehouse downwards under gravity automatically.
Described powder Cang Gai and fan cover are provided with draw ring away from the outer wall of equipment compartment, when chalk ash collection storehouse Nei Ji has chalk dust, open powder Cang Gai, are outwelled by chalk dust, then covered back by powder Cang Gai by draw ring.
Above-described embodiment is only used to interpretation purposes of the present invention, and is not limitation of the present invention, those skilled in the art, in essential scope of the present invention, makes a variety of changes or substitutes, also should belong to protection category of the present invention.
Claims (9)
1. the chalkboard eraser with chalk ash collection storehouse, the strip rub piece (12) of one or more is provided with at base plate (11) outer wall of shell (1), shell hollow, is characterized in that: on base plate, arrange multiple suction hole (13) communicated with shell endoporus round rub piece, be 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 arrange the equipment opening (14) corresponding with the both ends open of equipment compartment respectively, equipment compartment bottom is provided with one piece of demarcation strip (3), a part for equipment compartment is made to be positioned at below demarcation strip, edge along demarcation strip (3) is provided with outstanding surrounding edge downwards, equipment compartment and demarcation strip are put in shell, make the both ends open of equipment compartment facing to equipment opening corresponding on shell, described equipment compartment and demarcation strip are pressed onto on the base plate of shell by surrounding edge, the suction hole on base plate is made to be arranged in surrounding edge endoporus, equipment compartment diapire below demarcation strip being arranged multiple suction powder hole (21), enabling chalk dust by inhaling access arrangement storehouse, powder hole, the described chalkboard eraser with chalk ash collection storehouse also comprises powder Cang Gai (4), filter (5), supercharging storehouse (6) and 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, and one end of booster fan is inserted support and fixed, filter is the hollow cylindrical that one end open is closed in one end, and the openend of filter 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, and the diameter of the hollow cylindrical part of filter is less than the diameter of bore of equipment compartment, the brace table to inner process is provided with at equipment compartment inwall, the one end open of equipment compartment covers powder Cang Gai (4), equipment compartment endoporus between powder Cang Gai and brace table forms chalk ash collection storehouse, filter and the supercharging storehouse fitted together and booster fan are filled in equipment compartment from the other end opening of equipment compartment successively, the blind end of filter is made to arrive on brace table, the air inlet end face in supercharging storehouse is pushed against the tapered open end of filter, make the inlet end of booster fan towards filter, chalk dust is avoided directly to go here and there into booster, inhale in the space of powder hole between filter and equipment compartment, also be provided with battery in the enclosure, described battery is connected with booster fan by power line.
2. the chalkboard eraser with chalk ash collection storehouse according to claim 1, it is characterized in that: be provided with fan cover (8) at equipment compartment away from the other end of powder Cang Gai, be positioned on the equipment compartment wall above demarcation strip and be provided with steam vent between supercharging storehouse and fan cover, in the plenum space that the surrounding edge that the air that booster fan sucks is discharged to shell, demarcation strip and demarcation strip by steam vent is formed, the wall of plenum space is provided with venthole (15), and the air entering plenum space is discharged by venthole (15) again.
3. the chalkboard eraser with chalk ash collection storehouse according to claim 2, is characterized in that: described venthole (15) is located at and is positioned on the base plate of plenum space, enables the air-flow of plenum space discharge shell by venthole.
4. the chalkboard eraser with chalk ash collection storehouse according to claim 2, is characterized in that: the edge along base plate is arranged downwards and the shirt rim extended internally (16), and the height of described shirt rim is lower than the height of rub piece.
5. the chalkboard eraser with chalk ash collection storehouse according to claim 1, is characterized in that: the height that equipment compartment is positioned at demarcation strip inferior portion is less than the height of the surrounding edge of demarcation strip.
6. the chalkboard eraser with chalk ash collection storehouse according to claim 1, is characterized in that: filter adopts filter paper or filter cotton to make.
7. the chalkboard eraser with chalk ash collection storehouse according to claim 1, is characterized in that: on shell, be provided with power switch, and whether power switch controls battery and be communicated with booster fan.
8. the chalkboard eraser with chalk ash collection storehouse according to claim 1, is characterized in that: on the roof of shell, arrange arrow mark upwards.
9. the chalkboard eraser with chalk ash collection storehouse according to claim 2, is characterized in that: described powder Cang Gai and fan cover are provided with draw ring away from the outer wall of equipment compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228792.8U CN204736634U (en) | 2015-04-14 | 2015-04-14 | Chalkboard eraser with storehouse is collected to chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228792.8U CN204736634U (en) | 2015-04-14 | 2015-04-14 | Chalkboard eraser with storehouse is collected to chalk dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204736634U true CN204736634U (en) | 2015-11-04 |
Family
ID=54418388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520228792.8U Expired - Fee Related CN204736634U (en) | 2015-04-14 | 2015-04-14 | Chalkboard eraser with storehouse is collected to chalk dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204736634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142939A (en) * | 2015-04-14 | 2016-11-23 | 刘乐凝 | A kind of chalkboard eraser with chalk ash collection storehouse |
-
2015
- 2015-04-14 CN CN201520228792.8U patent/CN204736634U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142939A (en) * | 2015-04-14 | 2016-11-23 | 刘乐凝 | A kind of chalkboard eraser with chalk ash collection storehouse |
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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: 20151104 Termination date: 20170414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |