CN203472361U - Environment-friendly dust-free chalkboard eraser - Google Patents
Environment-friendly dust-free chalkboard eraser Download PDFInfo
- Publication number
- CN203472361U CN203472361U CN201320449471.1U CN201320449471U CN203472361U CN 203472361 U CN203472361 U CN 203472361U CN 201320449471 U CN201320449471 U CN 201320449471U CN 203472361 U CN203472361 U CN 203472361U
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- roller
- environment
- blackboard eraser
- housing
- casing
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- Expired - Fee Related
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Abstract
An environment-friendly dust-free chalkboard eraser is used for erasing chalk markings on a teaching chalkboard and can collect chalk dust. The adopted technical scheme is that the environment-friendly dust-free chalkboard eraser comprises a handle, a chalkboard eraser roller and a roller shaft, and is characterized in that the chalkboard eraser roller is cylindrical, arranged in a cylindrical casing in a rotary connection manner of the roller shaft, and exposed out of the front part of the casing; felt strips are arranged on the periphery of an opening in the front part of the casing; the handle is arranged in the rear of the casing; a collecting groove for collecting the chalk dust is formed in the lower part of the casing and provided with a collecting bag; and a rubber friction wheel is arranged on the left side surface of the casing, takes the roller shaft as the rotating shaft, is separated from the casing, and drives the chalkboard eraser roller to rotate through a planetary gear train. The environment-friendly dust-free chalkboard eraser has the advantages that not only can chalk markings on a chalkboard be erased effectively, but also environment-friendly collection of the chalk dust can be achieved, and physical health of teachers and students is protected.
Description
Technical field
The utility model relates to a kind of environmentally-friendly sanitary burnisher, relates in particular to a kind of for clearing up the environment-friendly dustless blackboard eraser of blackboard for education letter written with chalk.
Background technology
Common blackboard for education is wiped as tabular, can facilitate the letter written with chalk on erasing blackboard.But the chalk that uses lime stone-gypsum material to make can form Powdered dust, in classroom, cleaning totally can not suck tracheae, and teachers and students healthy caused to very big impact.And be difficult to accomplish effective removing for the cleaning tool of chalk dust, also can cause the secondary pollution of dust.
Summary of the invention
The purpose of this utility model is to provide a kind of clean removing chalk trace that both can facilitate, and can avoid again the environment-friendly dustless blackboard eraser of dust polluting environment.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of environment-friendly dustless blackboard eraser, comprise handle, blackboard eraser roller, roller shaft, it is characterized in that, described blackboard eraser roller is cylindric, and be arranged in columned housing by the mode of being rotatably connected of roller shaft, blackboard eraser roller is exposed in housing front portion, housing front opening place periphery arranges felt hair, handle is set after housing, lower housing portion has the feeder of collecting chalk dust, feeder is provided with collecting bag, housing left surface is rubber friction wheel, roller shaft is as the rotating shaft of rubber friction wheel, rubber friction wheel is separated with housing, rubber friction wheel drives blackboard eraser roller to rotate by the epicyclic train arranging.
Environment-friendly dustless blackboard eraser according to described, is characterized in that, described blackboard eraser roller surface arranges bristle.
Environment-friendly dustless blackboard eraser according to described, is characterized in that, described epicyclic train comprises gear ring, sun gear, planetary gear, and gear ring is fixed on rubber friction wheel, and sun gear is arranged on roller shaft.
Environment-friendly dustless blackboard eraser according to described, is characterized in that, described handle is provided with anti-slip veins.
The utility model has the advantage of, can either effectively remove the chalk writing on blackboard, also can accomplish the environmental protection of chalk dust to collect, protected the healthy of teachers and students, reduced the pollution that dust causes.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is left view of the present utility model.
In accompanying drawing: 1, housing; 2, handle; 3, collecting bag; 4, blackboard eraser roller; 5, felt hair; 6, rubber friction wheel; 7, gear ring; 8, sun gear; 9, planetary gear; 10, roller shaft; 11, feeder.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
The utility model as shown in the figure,
A kind of environment-friendly dustless blackboard eraser, comprise handle 2, blackboard eraser roller 4, roller shaft 10, it is characterized in that, described blackboard eraser roller 4 is cylindric, and be arranged in columned housing 1 by the mode of being rotatably connected of roller shaft 10, blackboard eraser roller 4 is exposed in housing 1 front portion, housing front opening place periphery arranges felt hair 5, handle 2 is set after housing 1, housing 1 bottom has the feeder 11 of collecting chalk dust, feeder 11 is provided with collecting bag 3, housing 1 left surface is rubber friction wheel 6, roller shaft 10 is as the rotating shaft of rubber friction wheel 6, rubber friction wheel 6 is separated with housing 1, rubber friction wheel 6 drives blackboard eraser roller 4 to rotate by the epicyclic train arranging.
Environment-friendly dustless blackboard eraser according to described, is characterized in that, described blackboard eraser roller 4 surfaces arrange bristle.
Environment-friendly dustless blackboard eraser according to described, is characterized in that, described epicyclic train comprises gear ring 7, sun gear 8, planetary gear 9, and gear ring 7 is fixed on rubber friction wheel 6, and sun gear 9 is arranged on roller shaft 10.
Environment-friendly dustless blackboard eraser according to described, is characterized in that, described handle 2 is provided with anti-slip veins.
Specific implementation process, rubber friction wheel 6 contacts with blackboard and rubs, rubber friction wheel 6 rotates, by epicyclic train, drive blackboard eraser roller 4 to rotate, because the number of teeth between the gear of epicyclic train is different, blackboard eraser roller 4 revolutions are greater than rubber friction wheel 6, can wipe the chalk writing on blackboard.
Embodiment recited above is described preferred embodiment of the present utility model; not design of the present utility model and protection domain are limited; do not departing under the prerequisite of the utility model design concept; various modification and improvement that in this area, common engineers and technicians make the technical solution of the utility model, all should fall into protection domain of the present utility model.
Claims (4)
1. an environment-friendly dustless blackboard eraser, comprise handle (2), blackboard eraser roller (4), roller shaft (10), it is characterized in that, described blackboard eraser roller (4) is cylindric, and be arranged in columned housing (1) by the mode of being rotatably connected of roller shaft (10), blackboard eraser roller (4) is exposed in housing (1) front portion, housing front opening place periphery arranges felt hair (5), handle (2) is set after housing (1), housing (1) bottom has the feeder (11) of collecting chalk dust, feeder (11) is provided with collecting bag (3), housing (1) left surface is rubber friction wheel (6), roller shaft (10) is as the rotating shaft of rubber friction wheel (6), rubber friction wheel (6) is separated with housing (1), rubber friction wheel (6) drives blackboard eraser roller (4) to rotate by the epicyclic train arranging.
2. environment-friendly dustless blackboard eraser according to claim 1, is characterized in that, described blackboard eraser roller (4) surface arranges bristle.
3. environment-friendly dustless blackboard eraser according to claim 1, it is characterized in that, described epicyclic train comprises gear ring (7), sun gear (8), planetary gear (9), and it is upper that gear ring (7) is fixed on rubber friction wheel (6), and sun gear (9) is arranged on roller shaft (10).
4. environment-friendly dustless blackboard eraser according to claim 1, is characterized in that, described handle (2) is provided with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449471.1U CN203472361U (en) | 2013-07-26 | 2013-07-26 | Environment-friendly dust-free chalkboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449471.1U CN203472361U (en) | 2013-07-26 | 2013-07-26 | Environment-friendly dust-free chalkboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203472361U true CN203472361U (en) | 2014-03-12 |
Family
ID=50220759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449471.1U Expired - Fee Related CN203472361U (en) | 2013-07-26 | 2013-07-26 | Environment-friendly dust-free chalkboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203472361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015530A (en) * | 2014-06-18 | 2014-09-03 | 华南农业大学 | Motor-driven dust-free chalk eraser |
-
2013
- 2013-07-26 CN CN201320449471.1U patent/CN203472361U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015530A (en) * | 2014-06-18 | 2014-09-03 | 华南农业大学 | Motor-driven dust-free chalk eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140726 |
|
| EXPY | Termination of patent right or utility model |