CN204432179U - Dust-proof blackboard eraser - Google Patents
Dust-proof blackboard eraser Download PDFInfo
- Publication number
- CN204432179U CN204432179U CN201520073396.2U CN201520073396U CN204432179U CN 204432179 U CN204432179 U CN 204432179U CN 201520073396 U CN201520073396 U CN 201520073396U CN 204432179 U CN204432179 U CN 204432179U
- Authority
- CN
- China
- Prior art keywords
- barrel
- dust
- type casing
- blackboard eraser
- filter screen
- 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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- Electrostatic Separation (AREA)
Abstract
The utility model discloses a kind of dust-proof blackboard eraser, comprise barrel-type casing (5), upper cover (8) is provided with in the upper end of barrel-type casing (5), the upper plantation of upper cover (8) has some pinches of bristles (9), it is characterized in that, (8) have air suction opening to upper cover, and air suction opening is at the neutral gear place of bristle (9); The micromachine (11) of band fan leaf (12) is had at barrel-type casing (5) internal fixtion, micromachine (11) is connected with power supply with plug by wire, is fixed with dust suction body (2) in the rear end of barrel-type casing (5) by upper filter screen (4) and lower filter screen (1).Compared with prior art, the utility model can prevent chalk dust from flying upward, and prevents academics and students from endangering by chalk dust.
Description
Technical field
The utility model relates to a kind of blackboard eraser, especially a kind of dust-proof blackboard eraser that can prevent chalk dust from flying upward.
Background technology
At present, the blackboard eraser major part of school's practicality is all made up of blackboard eraser seat and blackboard eraser body, this blackboard eraser is when blackboard wiping, chalk dust flies upward everywhere, the academics and students of blackboard wiping is sitting in front-seat student in addition, directly sucks in lung by chalk dust, in the course of time by breathing, pneumoconiosis easily, very unfavorable to the health of academics and students.Therefore, designing a kind of dust-proof blackboard eraser, is the current technical issues that need to address.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of dust-proof blackboard eraser.
The technical scheme in the invention for solving the technical problem is:
Dust-proof blackboard eraser, comprises barrel-type casing, is provided with upper cover in the upper end of barrel-type casing, and above covering plantation has some pinches of bristles, has above covered air suction opening, and air suction opening is at the neutral gear place of bristle; Have the micromachine of band fan leaf at barrel-type casing internal fixtion, micromachine is connected with power supply with plug by wire, is fixed with dust suction body in the rear end of barrel-type casing by upper filter screen and lower filter screen.Described dust suction body is moist filter paper or the ventilative sponge of humidity.
As a kind of preferred version of the present utility model, inward flange on the upper end inwall of barrel-type casing has, upper cover is fixed by screws on inward flange.When the upper cover of hair rinsed by band replaceable after bristle wear.
As a kind of preferred version of the present utility model, the bottom inwall of barrel-type casing has lower inward flange, upper filter screen, dust suction body and lower filter screen are fixed by screws on lower inward flange.After dust suction body is messy, replaceable dust suction body.
Compared with prior art, the utility model can prevent chalk dust from flying upward, and prevents academics and students from endangering by chalk dust.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 6 is that micromachine on barrel-type casing inwall fixes projection.
Detailed description of the invention
As shown in the figure, dust-proof blackboard eraser, comprises barrel-type casing 5, is provided with upper cover 8 in the upper end of barrel-type casing 5, and on upper cover 8, plantation has some pinches of bristles 9, and it is characterized in that upper cover 8 has air suction opening, air suction opening is at the neutral gear place of bristle 9; Have the micromachine 11 of band fan leaf 12 at barrel-type casing 5 internal fixtion, micromachine 11 is connected with power supply with plug by wire, is fixed with dust suction body 2 in the rear end of barrel-type casing 5 by upper filter screen 4 and lower filter screen 1.
Described dust suction body 2 is moist filter paper or the ventilative sponge of humidity.
Inward flange 7 on the upper end inwall of barrel-type casing 5 has, upper cover 8 is fixed by screws on inward flange 7.
The bottom inwall of barrel-type casing 5 has lower inward flange 3, and upper filter screen 4, dust suction body 2 and lower filter screen 1 are fixed by screws on lower inward flange 3.
Claims (4)
1. dust-proof blackboard eraser, comprise barrel-type casing (5), upper cover (8) is provided with in the upper end of barrel-type casing (5), the upper plantation of upper cover (8) has some pinches of bristles (9), it is characterized in that, (8) have air suction opening to upper cover, and air suction opening is at the neutral gear place of bristle (9); The micromachine (11) of band fan leaf (12) is had at barrel-type casing (5) internal fixtion, micromachine (11) is connected with power supply with plug by wire, is fixed with dust suction body (2) in the rear end of barrel-type casing (5) by upper filter screen (4) and lower filter screen (1).
2. dust-proof blackboard eraser according to claim 1, is characterized in that, described dust suction body (2) is moist filter paper or the ventilative sponge of humidity.
3. dust-proof blackboard eraser according to claim 1, is characterized in that, the upper end inwall of barrel-type casing (5) has upper inward flange (7), and upper cover (8) is fixed by screws on inward flange (7).
4. dust-proof blackboard eraser according to claim 1, it is characterized in that, the bottom inwall of barrel-type casing (5) has lower inward flange (3), and upper filter screen (4), dust suction body (2) and lower filter screen (1) are fixed by screws on lower inward flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073396.2U CN204432179U (en) | 2015-01-28 | 2015-01-28 | Dust-proof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073396.2U CN204432179U (en) | 2015-01-28 | 2015-01-28 | Dust-proof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204432179U true CN204432179U (en) | 2015-07-01 |
Family
ID=53600091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520073396.2U Expired - Fee Related CN204432179U (en) | 2015-01-28 | 2015-01-28 | Dust-proof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204432179U (en) |
-
2015
- 2015-01-28 CN CN201520073396.2U patent/CN204432179U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20160128 |
|
| EXPY | Termination of patent right or utility model |