CN2460327Y - Eraser with chalk dust absorbing device - Google Patents
Eraser with chalk dust absorbing device Download PDFInfo
- Publication number
- CN2460327Y CN2460327Y CN 00258659 CN00258659U CN2460327Y CN 2460327 Y CN2460327 Y CN 2460327Y CN 00258659 CN00258659 CN 00258659 CN 00258659 U CN00258659 U CN 00258659U CN 2460327 Y CN2460327 Y CN 2460327Y
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- CN
- China
- Prior art keywords
- gear
- duplicate gear
- pinion
- duplicate
- fixed
- 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 belongs to a blackboard or slate cleaning device, particularly a blackboard eraser with a chalk dust absorbing device. When the utility model is used for wiping a blackboard, dust can be absorbed into a dust collecting box. The utility model is characterized in that a box type structure is composed of a pedestal 6 and an outer housing 7. Blades 20 driven by a roller 5 through a gear transmission mechanism are arranged in the box. An air inlet is also arranged on the pedestal, and an air outlet is arranged on the outer housing. The outer side of the pedestal 6 is provided with a plurality of groups of erasing heads 18.
Description
The utility model belongs to the cleaning device of blackboard or slabstone, specifically a kind of dust-removing blackboard eraser.
The blackboard eraser that present most of school uses is done board wiper plane with felt, and dust flies upward everywhere when wiping letter written with chalk, and on teacher's the body, the full dust that falls on the face, more seriously the teacher sucks by the air of dust pollution, has had a strong impact on healthy.Present electric dust absorption blackboard eraser can suck dust in the board wiper box when erasing the board, and it drives fan blade by battery-operated small machine and rotates, the weak point of its existence is that power consumption is bigger, the replacing battery is frequent, owing to used the micromachine cost higher, volume is also bigger.
The purpose of this utility model provides a kind of convenient and practical dust-removing blackboard eraser, can utilize roller to rotate when erasing the board dust is drawn in the board wiper box.
The utility model is achieved in that a kind of dust-removing blackboard eraser, base and shell are formed the box structure of blackboard eraser, are furnished with in the box by the fan blade of roller by the gear drive transmission, are provided with air inlet on base, be provided with air outlet on shell, chassis outer side is provided with some groups and wipes head; The structure of the internal gear running part of dust-removing blackboard eraser is: the axle of fixed idler whell is installed on the sliding shoe, and the other end of described axle is fixed with gear, and fixedly the axle of duplicate gear is installed on the support plate, and gear becomes 90 degree engagements with the pinion of duplicate gear; Fixedly the axle of duplicate gear is installed on the support plate, the pinion of the gear wheel engagement duplicate gear of duplicate gear; The axle that is fixed with duplicate gear is installed on the support plate, the pinion of the gear wheel engagement duplicate gear of duplicate gear; On the axle of installing between support plate and the fan blade shell, be fixed with pinion, and described axle head is fixed with fan blade, the gear wheel meshing gear of duplicate gear; Dust-collecting box is fixed on the right-hand member of boxlike blackboard eraser;
The pinion of the gear wheel engagement duplicate gear of gear drive part duplicate gear, the pinion of engageable duplicate gear also simultaneously, the axle that duplicate gear is installed is separately fixed in the deep-slotted chip breaker of dividing plate, and the gear wheel of duplicate gear meshed the raise pinion, the pinion of gears engaged duplicate gear; The gear wheel of duplicate gear directly meshes the pinion of duplicate gear;
Be provided with spacer sleeve between support plate, screw passes support plate and spacer sleeve is fixed on the base.
Compare with background technology, the beneficial effects of the utility model are: when erasing the board, dust can be sucked in the blackboard eraser box, and free from environmental pollution; Be located at because of scroll wheel on the base of blackboard eraser, the limit driven wheel transmission system transmission fan blade that is close to rotates, and by the inlet scoop dust is sucked, and without battery and motor-driven, volume is identical with existing blackboard eraser, and is with low cost.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4, Fig. 5 are gear parts transmission schematic diagrames;
Fig. 6 is the structural representation of gear 4;
Fig. 7 be Fig. 6 side view;
Fig. 8 is a gear drive installing rack structural representation;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the structural representation of fixed head 13.
Be described further below in conjunction with embodiment.
When erasing the board, scroll wheel rotates, clockwise rotate by gear 4 transmission duplicate gears 2, transmission duplicate gear 23 rotates counterclockwise, rotate counterclockwise by crossing raise gear 24 drive duplicate gears 12, simultaneously, duplicate gear 1 glides along the deep-slotted chip breaker of fixed axis on the support plate 13,3, breaks away from and duplicate gear 12 engagements.
When blackboard eraser during to the motion of direction in opposite directions, scroll wheel rotates, and rotates counterclockwise by gear 4 transmission duplicate gears 2, and engagement duplicate gear 1 transmission duplicate gear 12 rotates counterclockwise, and simultaneously, duplicate gear 23 breaks away from and the engagement of gear 24 along deep-slotted chip breaker.
No matter roller 5 rotates to which side of two different directions, and duplicate gear 12 all keeps rotating counterclockwise, to guarantee that transmission fan blade 20 all the time to a direction rotation, sucks dust in the dust-collecting box of blackboard eraser.
Fan blade shell 16 is fixed on the dust-collecting box 25 by screw, and dust-collecting box 25 is fixed on the base 6.In the place ahead of fan blade 20 is the inlet scoop 26 of dust-collecting box 25, is fixed with filter cloth 19 on the inlet scoop 26, is blocked after dust sucks and drops in the dust-collecting box 25.During without blackboard eraser, open pumping board 17 dust is poured out from dust-collecting box.There are some groups to wipe 18 in base 6 arranged beneath, wipe head and make, wipe and leave the gap between the head as inhaling the dust passage of palm fiber.
Gear drive part of the present utility model also can be omitted and remove duplicate gear 23, and gear 24 is simplified running part, and at this moment, when roller 5 rotated to a direction, transmission fan blade 20 rotated dust suction, and when roller 5 rotated round about, fan blade 20 rotated by inertia.
Be provided with spring 10 above the sliding shoe 9 and between the chute 8, the axle of fixed idler whell 5 can radially micro-parallel moving.
The pinion of gear 4 and duplicate gear 2 becomes 90 degree engagements, they can be a pair of angular wheels, gear 4 also can be designed to Fig. 6, shown in Figure 7ly be furnished with engaging tooth on the circumference of gear one side, and the pinion of duplicate gear 2 is an ordinary gear, is provided with air outlet on the blackboard eraser shell.
Claims (1)
1, a kind of dust-removing blackboard eraser, the box structure that it is characterized in that base (6) and shell (7) composition blackboard eraser, be furnished with in the box by the fan blade (20) of roller (5) by the gear drive transmission, on base, be provided with air inlet, be provided with air outlet on shell, base (6) outside is provided with some groups and wipes head (18); The structure of the internal gear running part of dust-removing blackboard eraser is: the axle of fixed idler whell (5) is installed on the sliding shoe (9), the other end of described axle is fixed with gear (4), fixedly the axle of duplicate gear (2) is installed on support plate (3), (11), and gear (4) becomes 90 degree engagements with the pinion of duplicate gear (2); Fixedly the axle of duplicate gear (1) is installed on support plate (3), (13), the pinion of the gear wheel of duplicate gear (2) engagement duplicate gear (1); The axle that is fixed with duplicate gear (12) is installed on support plate (14), (11), the pinion of the gear wheel of duplicate gear (1) engagement duplicate gear (12); On the axle of installing between support plate (14) and the fan blade shell (16), be fixed with pinion (15), and described axle head is fixed with fan blade (20), the gear wheel meshing gear (15) of duplicate gear (12); Dust-collecting box (25) is fixed on the right-hand member of boxlike blackboard eraser;
The pinion of the gear wheel engagement duplicate gear (1) of gear drive part duplicate gear (2), the pinion of also engageable simultaneously duplicate gear (23), the axle that duplicate gear (1), (23) are installed is separately fixed in the deep-slotted chip breaker of dividing plate (13), (3), the gear wheel of duplicate gear (23) meshed raise pinion (24), the pinion of gear (24) engagement duplicate gear (12); The gear wheel of duplicate gear (1) directly meshes the pinion of duplicate gear (12);
Be provided with spacer sleeve (21) between support plate (3), (11), (13), (14), screw (22) passes support plate and spacer sleeve is fixed on the base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00258659 CN2460327Y (en) | 2000-10-20 | 2000-10-20 | Eraser with chalk dust absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00258659 CN2460327Y (en) | 2000-10-20 | 2000-10-20 | Eraser with chalk dust absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2460327Y true CN2460327Y (en) | 2001-11-21 |
Family
ID=33614896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00258659 Expired - Fee Related CN2460327Y (en) | 2000-10-20 | 2000-10-20 | Eraser with chalk dust absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2460327Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991318A (en) * | 2014-05-07 | 2014-08-20 | 江苏大学 | Pure mechanical type environmental-friendly dust collecting blackboard eraser |
-
2000
- 2000-10-20 CN CN 00258659 patent/CN2460327Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991318A (en) * | 2014-05-07 | 2014-08-20 | 江苏大学 | Pure mechanical type environmental-friendly dust collecting blackboard eraser |
| CN103991318B (en) * | 2014-05-07 | 2016-03-02 | 江苏大学 | The green dust absorption blackboard eraser of a kind of Purely mechanical |
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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 |