CN204586263U - A kind of powder of suction automatically formula chalkboard eraser - Google Patents
A kind of powder of suction automatically formula chalkboard eraser Download PDFInfo
- Publication number
- CN204586263U CN204586263U CN201520177125.1U CN201520177125U CN204586263U CN 204586263 U CN204586263 U CN 204586263U CN 201520177125 U CN201520177125 U CN 201520177125U CN 204586263 U CN204586263 U CN 204586263U
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- equipment compartment
- shell
- booster
- filter
- chalkboard eraser
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Abstract
A kind of powder of suction automatically formula chalkboard eraser, 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 at the base plate outer wall of shell; Be provided with the equipment compartment 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 corresponding with the both ends open of equipment compartment respectively, equipment compartment bottom is provided with one piece of demarcation strip and arranges equipment compartment in the shell of chalkboard eraser, Ji Fencang, filter and supercharging storehouse are set in equipment compartment, in the process using chalkboard eraser, open switch, make the booster fan work in supercharging storehouse, chalk dust is sucked, after being filtered, chalk dust falls in collection powder storehouse, and air goes out chalkboard eraser through booster fan supercharging after-blow.
Description
Technical field
The utility model relates to the chalkboard eraser that automatically can suck chalk dust that a kind of teacher uses in teaching process, belongs 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 purpose of this utility model is to provide a kind of chalkboard eraser that automatically can suck chalk dust.
The technical solution of the utility model is: a kind of powder of suction automatically formula chalkboard eraser, is provided with the strip rub piece 12 of one or more, shell hollow, arranges multiple suction hole 13 communicated with shell endoporus round rub piece on base plate at base plate 11 outer wall of shell 1, 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 is arranged multiple suction powder hole 21, enable chalk dust by powder entering hole access arrangement storehouse, described automatic suction powder formula chalkboard eraser also comprises collection powder storehouse 4, filter 5 and booster 6, booster is hollow cylindrical, the inlet end opening of booster, booster inwall is provided with fixed support, and booster fan 61 is fixed in booster by fixed support, booster inserts equipment compartment from the equipment opening of shell, makes the inlet end of booster towards another equipment opening of shell, the described collection powder storehouse one end open other end is closed, and is provided with the back-up block of two or more to the symmetric arrays of inner process at the inwall of Ji Fencang near openend, 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, filter is inserted Ji Fencang from the openend of Ji Fencang, the blind end of filter is made to be against on back-up block, the major part of filter is positioned at outside Ji Fencang, the filter be nested together and Ji Fencang are inserted in equipment compartment from another equipment opening of equipment compartment, the vertex of a cone of filter port end is made to compress the edge of the inlet end of booster, avoid chalk dust just directly to go here and there into booster without frit, make in the space of suction powder hole between filter and equipment compartment, booster 6 is provided with steam vent 62, and the air that booster fan sucks is discharged to outside shell by steam vent, also be provided with battery in the enclosure, described battery is connected with booster fan by power line.
Booster is blind end away from one end of inlet end, steam vent is located on the booster cylindricality wall of blind end, corresponding with the steam vent of the booster equipment compartment wall be positioned at above demarcation strip is also provided with equipment compartment steam vent 22, base plate outside the surrounding edge being positioned at demarcation strip is arranged multiple venthole 15, the air-flow that booster is discharged enters through equipment compartment steam vent in the shell endoporus outside demarcation strip surrounding edge, then discharges shell through 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.
Described booster away from the opposite side of inlet end be provided with edge outwardly diameter be greater than the supercharging lid in decanning facility hole.
The edge of the blind end of described Ji Fencang outwardly, forms the Ji Fengai that diameter is greater than the equipment opening on shell.
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.
Beneficial effect
1, equipment compartment is set in the shell of chalkboard eraser, Ji Fencang, filter and supercharging storehouse are set in equipment compartment, in the process using chalkboard eraser, open switch, make the booster fan work in supercharging storehouse, chalk dust is sucked, after being filtered, chalk dust falls in collection powder 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 utility model;
Fig. 2 is right view of the present utility model;
Fig. 3 is left view of the present utility model;
Fig. 4 is perspective cross section schematic diagram of the present utility model;
Fig. 5 is explosive view of the present utility model.
Detailed description of the invention
As shown in Figure 1 and Figure 5, a kind of powder of suction automatically formula chalkboard eraser, is provided with the strip rub piece 12 of one or more, shell hollow at base plate 11 outer wall of the shell 1 of chalkboard eraser, round rub piece, multiple suction hole 13 communicated with shell endoporus is set on base plate, for being sucked in chalkboard eraser by chalk dust.Described rub piece is evenly distributed at base plate outer wall, and rub piece is usually parallel with the long limit of base plate or minor face, or forms 30 to 60 angles of spending with the long limit of 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, and equipment compartment bottom is provided with one piece of demarcation strip 3, and a part for equipment compartment is 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, make the suction hole on base plate be arranged in surrounding edge endoporus.Equipment compartment diapire below demarcation strip is arranged multiple suction powder hole 21, enable chalk dust enter surrounding edge endoporus by the suction hole on base plate, then by powder entering hole access arrangement storehouse.
Described automatic suction powder formula chalkboard eraser also comprises collection powder storehouse 4, filter 5 and booster 6.Booster is hollow cylindrical, the inlet end opening of booster, and booster inwall is provided with fixed support, and booster fan 61 is fixed in booster by fixed support, makes the inlet end of inlet end towards booster of booster fan.
Booster inserts equipment compartment from the equipment opening of shell, makes the inlet end of booster towards another equipment opening of shell.
The described collection powder storehouse one end open other end is closed, and is provided with the back-up block of two or more to the symmetric arrays of inner process at the inwall of Ji Fencang near openend.Filter is the hollow cylindrical that one end open is closed in one end, the openend of filter is tapered, the external diameter of the vertex of a cone is identical with the internal diameter of equipment compartment, both form tight fit, the diameter of the hollow cylindrical part of filter is less than the diameter of bore of equipment opening, when filter bits is in equipment compartment, between the outer wall of filter and the inwall of equipment compartment, leave space.
Filter is inserted Ji Fencang from the openend of Ji Fencang, the blind end of filter is made to be against on back-up block, the major part of filter is positioned at outside Ji Fencang, between the outer wall and the openend of Ji Fencang of filter, form space, and chalk dust is entered in collection powder storehouse.
The filter be nested together and Ji Fencang are inserted in equipment compartment from another equipment opening of equipment compartment, the vertex of a cone of filter port end is made to compress the edge of the inlet end of booster, avoid chalk dust just directly to go here and there into booster without frit, make in the space between filter and equipment compartment, suction powder hole on equipment compartment.Booster 6 is provided with steam vent 62, and the air that booster fan sucks is discharged to outside shell by steam vent; Also be provided with battery in the enclosure, described battery is connected with booster fan by power line.During booster fan work, by in the space between chalk dust filter by suction and equipment compartment, chalk dust affects by the filtration of filter and can not enter filter endoporus and be deposited in the space between the outer wall of filter and the inwall of equipment compartment, and air can enter filter endoporus, be pressurized further after blower fan sucks supercharging and blow out shell from the steam vent booster.And the chalk dust be deposited in outside filter, when booster fan quits work, as long as by chalkboard eraser by Ji Fencang down booster mode upward place, under gravity, chalk dust will automatically fall into collection powder storehouse in storage.
Booster is blind end away from one end of inlet end, steam vent is located on the booster cylindricality wall of blind end, corresponding with the steam vent of the booster equipment compartment wall be positioned at above demarcation strip is also provided with equipment compartment steam vent, base plate outside the surrounding edge being positioned at demarcation strip arranges multiple venthole, the air-flow that booster is discharged enters through equipment compartment steam vent in the shell endoporus outside demarcation strip surrounding edge, then discharges shell through venthole.
Edge along base plate is arranged downwards and the shirt rim extended internally, and the height of described shirt rim is lower than the height of rub piece, and in the process erased the board, shirt rim would not rub blackboard.Base plate gives vent to anger plate between shirt rim and the surrounding edge of demarcation strip,
Described booster away from the opposite side of inlet end be provided with edge outwardly diameter be greater than the supercharging lid in decanning facility hole, just by being pulled outwardly supercharging lid, booster can be pulled out in shell when needing.
The edge of the blind end of described Ji Fencang outwardly, form the Ji Fengai that diameter is greater than the equipment opening on shell, by being pulled outwardly Ji Fengai, Ji Fencang can be pulled out in equipment compartment when needing, the chalk dust in collection powder storehouse being removed totally and again Ji Fencang is turned back in equipment compartment.In order to be pulled out in equipment compartment by Ji Fencang easily, Ji Fengai wall outwardly arranges draw ring.
The height that equipment compartment is positioned at demarcation strip inferior portion is less than the height of the surrounding edge of demarcation strip, and the chalk dust and the air-flow that enable to enter surrounding edge endoporus are more smoothly through powder entering hole access arrangement storehouse.
Filter adopts filter paper or filter cotton to make, and chalk dust can be stoped to enter in filter, but air can successfully enter in filter endoporus.
Shell is provided with power switch, and whether power switch controls battery and is communicated with booster fan.Open switch when erasing the board, booster fan work, the chalk dust wiped when erasing the board is filtered in inhalation device storehouse together with partial air, chalk dust is stayed in equipment compartment, by Air blowing shell, thus play the effect preventing chalk dust from flying upward everywhere.
In the application of reality, for simplified apparatus, shell does not establish power switch, but pressure inductor is set at rub piece root, after pressure inductor detects that pressure increases, signal transmission is given the control chip that is small-sized, control chip connects battery and booster fan, make booster fan work, when pressure inductor can't detect after pressure signal reaches the time preset, control chip cuts off the connection of battery and booster fan.
The roof of shell arranges arrow mark upwards, makes booster be positioned at above arrow, collect powder position in storehouse below simple head.The diapire of shell arranges magnet, blackboard arranges iron plate, enable chalkboard eraser by magnet adsorption on blackboard.When placing chalkboard eraser, place, make arrow upward by arrow mark instruction, the chalk dust outside filter will drop in collection powder storehouse under gravity automatically.
During assembling, first equipment compartment and demarcation strip are put in shell, then base plate is connected with the top of shell, then booster, filter and Ji Fencang are inserted in equipment compartment.
Above-described embodiment is only used to interpretation purposes of the present utility model; and be not to restriction of the present utility model, those skilled in the art, in essential scope of the present utility model; make a variety of changes or substitute, also should belong to protection category of the present utility model.
Claims (9)
1. automatically inhale powder formula chalkboard eraser for one kind, the strip rub piece (12) of one or more is provided with at base plate (11) outer wall of shell (1), it is characterized in that: shell hollow, multiple suction hole (13) communicated with shell endoporus is set on base plate 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 is arranged multiple suction powder hole (21), enable chalk dust by powder entering hole access arrangement storehouse, described automatic suction powder formula chalkboard eraser also comprises Ji Fencang (4), filter (5) and booster (6), booster is hollow cylindrical, the inlet end opening of booster, booster inwall is provided with fixed support, booster fan (61) is fixed in booster by fixed support, booster inserts equipment compartment from the equipment opening of shell, makes the inlet end of booster towards another equipment opening of shell, the described collection powder storehouse one end open other end is closed, and is provided with the back-up block of two or more to the symmetric arrays of inner process at the inwall of Ji Fencang near openend, 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, filter is inserted Ji Fencang from the openend of Ji Fencang, the blind end of filter is made to be against on back-up block, the major part of filter is positioned at outside Ji Fencang, the filter be nested together and Ji Fencang are inserted in equipment compartment from another equipment opening of equipment compartment, the vertex of a cone of filter port end is made to compress the edge of the inlet end of booster, avoid chalk dust just directly to go here and there into booster without frit, make in the space of suction powder hole between filter and equipment compartment, booster (6) is provided with steam vent (62), and the air that booster fan sucks is discharged to outside shell by steam vent, also be provided with battery in the enclosure, described battery is connected with booster fan by power line.
2. automatic suction powder formula chalkboard eraser according to claim 1, it is characterized in that: booster is blind end away from one end of inlet end, steam vent is located on the booster cylindricality wall of blind end, corresponding with the steam vent of the booster equipment compartment wall be positioned at above demarcation strip is also provided with equipment compartment steam vent (22), base plate outside the surrounding edge being positioned at demarcation strip is arranged multiple venthole (15), the air-flow that booster is discharged enters through equipment compartment steam vent in the shell endoporus outside demarcation strip surrounding edge, then discharges shell through venthole.
3. automatic suction powder formula chalkboard eraser 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.
4. automatic suction powder formula chalkboard eraser according to claim 1, is characterized in that: described booster away from the opposite side of inlet end be provided with edge outwardly diameter be greater than the supercharging lid in decanning facility hole.
5. automatic suction powder formula chalkboard eraser according to claim 1, is characterized in that: the edge of the blind end of described Ji Fencang outwardly, forms the Ji Fengai that diameter is greater than the equipment opening on shell.
6. automatic suction powder formula chalkboard eraser 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.
7. automatic suction powder formula chalkboard eraser according to claim 1, is characterized in that: filter adopts filter paper or filter cotton to make.
8. automatic suction powder formula chalkboard eraser 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.
9. automatic suction powder formula chalkboard eraser according to claim 1, is characterized in that: on the roof of shell, arrange arrow mark upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177125.1U CN204586263U (en) | 2015-03-26 | 2015-03-26 | A kind of powder of suction automatically formula chalkboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177125.1U CN204586263U (en) | 2015-03-26 | 2015-03-26 | A kind of powder of suction automatically formula chalkboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204586263U true CN204586263U (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520177125.1U Expired - Fee Related CN204586263U (en) | 2015-03-26 | 2015-03-26 | A kind of powder of suction automatically formula chalkboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204586263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142938A (en) * | 2015-03-26 | 2016-11-23 | 刘乐凝 | A kind of suction powder formula chalkboard eraser automatically |
| CN113085422A (en) * | 2021-04-30 | 2021-07-09 | 江苏经贸职业技术学院 | Dust suction device for common blackboard |
-
2015
- 2015-03-26 CN CN201520177125.1U patent/CN204586263U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142938A (en) * | 2015-03-26 | 2016-11-23 | 刘乐凝 | A kind of suction powder formula chalkboard eraser automatically |
| CN113085422A (en) * | 2021-04-30 | 2021-07-09 | 江苏经贸职业技术学院 | Dust suction device for common blackboard |
| CN113085422B (en) * | 2021-04-30 | 2022-04-15 | 江苏经贸职业技术学院 | Dust suction device for common blackboard |
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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: 20150826 Termination date: 20160326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |