CN2217523Y - Dust-proof chalk eraser - Google Patents
Dust-proof chalk eraser Download PDFInfo
- Publication number
- CN2217523Y CN2217523Y CN 94222092 CN94222092U CN2217523Y CN 2217523 Y CN2217523 Y CN 2217523Y CN 94222092 CN94222092 CN 94222092 CN 94222092 U CN94222092 U CN 94222092U CN 2217523 Y CN2217523 Y CN 2217523Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- ratchet
- dust
- housed
- round brush
- 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
Images
Landscapes
- Cleaning In General (AREA)
Abstract
The utility model belongs to the dust-proof chalk eraser, which is characterized in that the inner upper part of a casing has engaged gears which are clamped on a main shaft; one end of the main shaft is arranged on a partition plate and the other end of the main shaft is arranged on a sliding plate with an inclined plane; one end near the partition plate is provided with a spring leaf which pushes against a ratchet wheel arranged on the main shaft; the ratchet wheel is connected with a rolling brush and the surface of the rolling brush is adhered with helical hair feels with partitions. The utility model has the advantages of simple structure, flexible operation, convenient operation, dust-proof performance and indoor environment prevention from pollution.
Description
The utility model relates to a kind of teaching aid, particularly relates to a kind of manually dustproof chalkboard eraser.
At present, the chalkboard eraser of teaching usefulness mainly sticks at plank by cotton and forms, and when the teacher showed person's handwriting on the blackboard in wiping, dust flew upward everywhere, and the pollution indoor environment influences the healthy of people.
It is a kind of simple in structure that the purpose of this utility model is to provide, and absorbs the good dustproof chalkboard eraser of chalk dust.
In order to achieve the above object, the utility model adopts a kind of dustproof chalkboard eraser, it is made up of housing, gear etc., at the housing internal upper part driving wheel that symmetry is meshed and driven pulley, driving wheel being housed is installed in an end and is arranged on the dividing plate, the other end is loaded on the main shaft that has on the inclined-plane slide plate, near dividing plate one end spring leaf is housed, spring leaf peaks at and is contained in the ratchet that has helical teeth on the main shaft, and ratchet is meshed with the helical teeth round brush that has that is installed in the main shaft top.The wedge shape scrubbing brush of convex-concave shape is housed between symmetrical round brush.In lower housing portion roller is set.
The dustproof chalk board scraper of the utility model has advantage:
Simple in structure, use to absorb good dustproof effect flexibly, prevent dust polluting environment.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the schematic perspective view of the dustproof chalkboard eraser of the utility model.
As shown in Figure 1, the dustproof chalkboard eraser employing of the utility model is a kind of to be made up of housing, gear etc., it is characterized in that: at the housing internal upper part driving wheel 2 that symmetry is meshed is housed and is installed in an end with driven pulley 3, driving wheel 2 and is arranged on the dividing plate 11, the other end is loaded on the main shaft 6 that has on the inclined-plane slide plate 5, near dividing plate 4 one ends spring leaf 7 is housed, spring leaf 7 peaks at and is contained in the ratchet 8 that has helical teeth on the main shaft 6, and ratchet 8 is meshed with the helical teeth round brush 9 that has that is installed in main shaft 6 tops.The wedge shape scrubbing brush 10 of convex-concave shape is housed between symmetrical round brush 9.In housing section roller 11 is set.
Said ratchet 8 parts are exposed to hull outside.
Said round brush 9 surfaces are pasted and are had helical form felt 12 at interval.
Said ratchet, it by spring leaf peak at ratchet have helical teeth and be loaded on the round brush that main shaft has a helical teeth and be meshed, when manually wiping the person's handwriting that shows on the blackboard left, the ratchet that is exposed to hull outside drives driving wheel and rotates, be arranged on the helical teeth that the housing other end is provided with on ratchet and the running roller and throw off, at this moment, ratchet rotates dust is adsorbed in the round brush rotation, the scrubbing brush of convex-concave shape adsorbs dust simultaneously, and dust slips in the housing.
Claims (3)
1, a kind of dustproof chalkboard eraser is made up of housing, gear etc., it is characterized in that:
A, at the housing internal upper part driving wheel (2) that symmetry is meshed is housed and is installed in an end with driven pulley (3), driving wheel (2) and is arranged on the dividing plate (4), the other end is loaded on the main shaft (6) that has on the inclined-plane slide plate (5), near dividing plate (4) one ends spring leaf (7) is housed, spring leaf (7) peaks at and is contained in the ratchet (8) that has helical teeth on the main shaft (6), and ratchet (8) is meshed with the helical teeth round brush (9) that has that is installed in main shaft (6) top.
B, the wedge shape scrubbing brush (10) of convex-concave shape is housed between symmetrical round brush (9).
C, roller (11) is set in lower housing portion.
2, according to the described dustproof chalkboard eraser of claim 1, it is characterized in that: ratchet (a 8) part is exposed to hull outside.
3, according to the described dustproof chalkboard eraser of claim 1, it is characterized in that: round brush (9) surface is pasted and is had helical form felt (12) at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222092 CN2217523Y (en) | 1994-09-24 | 1994-09-24 | Dust-proof chalk eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222092 CN2217523Y (en) | 1994-09-24 | 1994-09-24 | Dust-proof chalk eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2217523Y true CN2217523Y (en) | 1996-01-17 |
Family
ID=33836191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94222092 Expired - Fee Related CN2217523Y (en) | 1994-09-24 | 1994-09-24 | Dust-proof chalk eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2217523Y (en) |
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 |
| CN114146912A (en) * | 2021-11-12 | 2022-03-08 | 安徽华谊日新科技有限公司 | Garrulous soap is retrieved and is used screening plant |
-
1994
- 1994-09-24 CN CN 94222092 patent/CN2217523Y/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN114146912A (en) * | 2021-11-12 | 2022-03-08 | 安徽华谊日新科技有限公司 | Garrulous soap is retrieved and is used screening plant |
| CN114146912B (en) * | 2021-11-12 | 2023-05-19 | 安徽华谊日新科技有限公司 | Screening plant is used in garrulous soap recovery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2217523Y (en) | Dust-proof chalk eraser | |
| CN2177602Y (en) | Automatic character-erazing blackboard | |
| CN202319604U (en) | Curtain-type chalk dust erasing collector | |
| CN2236955Y (en) | Dust-proof chalk eraser | |
| CN2302134Y (en) | Electric blackboard without dust | |
| CN2245002Y (en) | Non-electric dust-absorbing blackboard eraser | |
| CN2434149Y (en) | Belt wheel eraser | |
| CN2377106Y (en) | Hand chalk dust-absorbing and -less blackboard eraser | |
| CN2298142Y (en) | Electric blackboard | |
| CN2463182Y (en) | Circular belt type blackboard | |
| CN2223201Y (en) | Electric cleaning and dust-absorbing blackboard eraser | |
| CN201009607Y (en) | Intellectual electric chalk eraser | |
| CN2210106Y (en) | Dust-proof blackboard wiper | |
| CN2138578Y (en) | Blackboard eraser for reducing dust pollution | |
| CN2151873Y (en) | Electrostatic dust-absorbing blackboard eraser | |
| CN2129228Y (en) | Chalk-collecting blackboard eraser | |
| CN215195885U (en) | Active carbon air oxygen-insulation type purifying equipment | |
| CN2609775Y (en) | Electric environmental protection energy-saving eraser | |
| CN2409063Y (en) | Dust-absorbing blackboard eraser | |
| CN2213644Y (en) | Anti-dust eraser | |
| CN2383700Y (en) | Rolling blackboard erazer | |
| CN2108634U (en) | Eraser with automatic absorbing chalk dust | |
| CN2363895Y (en) | Dustless blackboard | |
| CN2471559Y (en) | Blackboard eraser | |
| CN2058383U (en) | Blackboard eraser with dust catcher |
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 |