CN2601859Y - Environmental protection type chalk-dust suction black-board eraser - Google Patents
Environmental protection type chalk-dust suction black-board eraser Download PDFInfo
- Publication number
- CN2601859Y CN2601859Y CN 03211718 CN03211718U CN2601859Y CN 2601859 Y CN2601859 Y CN 2601859Y CN 03211718 CN03211718 CN 03211718 CN 03211718 U CN03211718 U CN 03211718U CN 2601859 Y CN2601859 Y CN 2601859Y
- Authority
- CN
- China
- Prior art keywords
- dust
- housing
- blackboard eraser
- motor
- absorbing box
- 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
Links
Abstract
The utility model belongs to the teaching utensil, in particular to an environment protective dust absorbing blackboard eraser. The dust absorbing blackboard eraser is composed of a cleaning plate with an air conduit fixed at the lower part of a dust absorbing box. The utility model is characterized in that a casing 1 with air exhaust hole fixed on the dust absorbing box and a casing 2 with a bottom plate are combined into a whole through an inserting groove structure to form a dust absorbing compartment. A filtering screen is lined inside the air exhaust hole of the casing 1, a dust proof cover used by a motor is fixed in the casing 2, the lower end of a motor axle is connected with an absorbing fan, the absorbing fan is located at the dust absorbing hole of the bottom of the dust absorbing box, and the motor is connected with a plug and a power source device through conducting wires. The power source device adopts a base seat with a rectifying power source, and the base seat is fixed at the side frame of a blackboard. The utility model can be taken down when being used, and when not being used, the utility model can be placed on the base seat. The design of the utility model is reasonable, the operation is convenient, and the dust cleaned down can be absorbed into the dust absorbing box to keep the teaching environment clean.
Description
One, technical field
The utility model belongs to the teaching aid technical field, is specifically related to a kind of blackboard eraser with dust-absorbing function.
Two, background technology
As everyone knows, blackboard eraser is the requisite teaching aid that all kinds of schools use in teaching.But, in the teaching of all kinds of schools, still use the old-fashioned blackboard erasers of the attached felt hair knot of the plank structure of no dust-absorbing function in a large number at present.When using the old-fashioned blackboard eraser blackboard wiping of said structure, dust flies upward everywhere, causes environmental pollution, directly endangers the healthy of teachers and students.In addition, this old-fashioned blackboard eraser easily adsorbs dust when erasing the board, influence the cleaning of blackboard panel.
Three, summary of the invention
The purpose of this utility model provides a kind of blackboard eraser with dust-absorbing function, makes the blackboard cleaning, bright of its wiping, and can eliminate dust pollution, brings up the teaching environment of cleaning, health, helps the healthy of teachers and students.
The utility model is achieved in that the environmental-protecting dust blackboard eraser is made of the Wiper plate in fixed band air channel, dust-absorbing box bottom.Be characterized in that dust-absorbing box is combined into one by inserting slot construction by the housing I of band vent and the housing II of band base plate, forms the dust suction storehouse.The vent place liner screen pack of housing I, motor is fixed in the housing II with dust cover, and the motor shaft lower end connects inhales fan, inhales the air suction opening place that fan is positioned at the dust-absorbing box bottom, and motor is connected with supply unit by the plug that lead connects.
The used motor of the utility model is a micromachine, and the type selecting of micromachine will be considered cost, preferably selects the low-voltage micromachine for use.Therefore, described supply unit adopts the base of band rectifier power source, and base is provided with the power supply transformation jack that inserts the motor line trap.Like this, base can be fixed on the frame place of blackboard, the utility model just can be placed on the base when not using.
The utility model is reasonable in design, and is easy to use.Use the utility model blackboard wiping, the powder dust under wiping directly can be sucked in the dust-absorbing box of this blackboard eraser, dust suction is efficient to be reached more than 98%, thereby has brought up clean teaching environment, helps the healthy of teachers and students.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.Shown in the figure, dust absorption blackboard eraser is placed on the base of band voltage-stabilized power supply.
Fig. 2 is the structural representation of dust absorption blackboard eraser when opening housing I.
Fig. 3 is the cross sectional representation of dust absorption blackboard eraser.
The upward view of Fig. 4 figure dust absorption blackboard eraser.Main express Wiper plate and on the air channel, as seen the broken section place is installed in the suction fan in the dust-absorbing box.
Fig. 5 is the structural representation of the base of the band voltage-stabilized power supply of the utility model use.
Five, body tool embodiment
The dust-absorbing box of the utility model---environmental-protecting dust blackboard eraser is pegged graft by slot 19 by housing I 14 and the housing II 17 that is with base plate, and also being buckled into one with padlock 3 forms dust-absorbing box in the back, and dust-absorbing box is interior to be dust suction storehouse 11.Dust-absorbing box adopts the polymer shell.Housing I 14 is provided with vent 4, its vent 4 place's liner screen packs 13, and screen pack 13 adopts sponge material to make.The top of housing II 17 is provided with motor radiating cover 1, and motor 16 usefulness dust covers are fixed in the housing II 17, and the motor shaft lower end connects inhales fan 10, inhales air suction opening 20 places that fan 10 is positioned at the dust-absorbing box bottom.Wiper plate 12 is the flat board in a band air channel 23, is bonded with the powerful rub body that palm fiber 21 and felt 22 constitute on the flat board of Wiper plate 12, and therefore, this kind Wiper plate can be fit to the blackboard of various plate plane materiel matter.
The type selecting of the employed micromachine of the utility model is directly connected to its production cost.Therefore, motor 16 is selected the micromachine of 9V voltage for use.The supply unit that motor 16 connects by lead and plug 7 is the base 9 of band rectifier power source 18 (also can adopt battery case), and its base is provided with blackboard eraser backplate 2 and the power supply transformation jack 8 that is used with motor line trap 7 and power switch 5, power supply indicator 6.Motor line trap 7 can be selected present telephone set crystal head commonly used for use, and power supply transformation jack 8 also will match.Also be provided with microswitch 15 on the base, when making dust absorption blackboard eraser be placed on the base, microswitch 15 is closure state; Pick up dust absorption blackboard eraser, when making it to leave base, microswitch 15 is opened, and connects power supply (this point and present telephone set subject for ridicule take off promptly connect identical), can use.Be convenient teaching, the base of dust absorption blackboard eraser should be fixed on the residing wall of blackboard or be fixed on the frame place of blackboard.
Claims (6)
1, a kind of environmental-protecting dust blackboard eraser is by the Wiper plate formation in fixed band air channel, dust-absorbing box bottom (23); It is characterized in that dust-absorbing box is combined into one by inserting slot construction by the housing I (14) of band vent (4) and the housing II (17) of band base plate, forms dust suction storehouse (11); The vent (4) of housing I (14) is located liner screen pack (13), and motor (16) is fixed in the housing II (17), and the motor shaft lower end connects inhales fan (10), and suction fan (10) is positioned at the air suction opening (20) of dust-absorbing box bottom and locates; Motor is connected with supply unit by the plug that lead connects.
2, environmental-protecting dust blackboard eraser according to claim 1 is characterized in that the base (9) of described supply unit for band rectifier power source (18), and base (9) is provided with and inserts the power supply transformation jack (8) that motor line trap (7) uses.
3, environmental-protecting dust blackboard eraser according to claim 1 and 2 is characterized in that the top of the housing II (17) of described dust-absorbing box is provided with motor radiating cover (1), and motor (16) is fixed in the housing II with dust cover.
4, environmental-protecting dust blackboard eraser according to claim 1 and 2 is characterized in that described dust-absorbing box is by housing I (14) and is with the housing II (17) of base plate also to be buckled into one with padlock (3) by slot (19) grafting back.
5, environmental-protecting dust blackboard eraser according to claim 2 is characterized in that base (9) is provided with microswitch (15).
6, environmental-protecting dust blackboard eraser according to claim 1 and 2 is characterized in that being bonded with on the flat board of described Wiper plate (12) the powerful rub body that is made of palm fiber (21) and felt (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211718 CN2601859Y (en) | 2003-03-05 | 2003-03-05 | Environmental protection type chalk-dust suction black-board eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211718 CN2601859Y (en) | 2003-03-05 | 2003-03-05 | Environmental protection type chalk-dust suction black-board eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2601859Y true CN2601859Y (en) | 2004-02-04 |
Family
ID=34159160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03211718 Expired - Fee Related CN2601859Y (en) | 2003-03-05 | 2003-03-05 | Environmental protection type chalk-dust suction black-board eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2601859Y (en) |
-
2003
- 2003-03-05 CN CN 03211718 patent/CN2601859Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |