CN2428307Y - Dust-suction chalk eraser - Google Patents
Dust-suction chalk eraser Download PDFInfo
- Publication number
- CN2428307Y CN2428307Y CN 00219300 CN00219300U CN2428307Y CN 2428307 Y CN2428307 Y CN 2428307Y CN 00219300 CN00219300 CN 00219300 CN 00219300 U CN00219300 U CN 00219300U CN 2428307 Y CN2428307 Y CN 2428307Y
- Authority
- CN
- China
- Prior art keywords
- dust
- dust suction
- supercharging
- brush
- chalk
- 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
Landscapes
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
The utility model discloses a dust-suction chalk eraser. The utility model has the unique structure design that the utility model is provided with a casing also used as a base, the interior of the casing is provided with a motor; a motor shaft is provided with a pressurizing dust brush and a dust-suction wheel connected with a dust storage cavity. The utility model has the advantages of novel and reasonable structure, convenient operation and portability and complete dust suction, is capable of effectively eliminating dust produced in the process of using the chalk and is in favor of ensuring the health of teachers and students.
Description
The utility model relates to the annex in the teaching equipment, is a kind of attached apparatus that is used for blackboard for education, specifically, is a kind of chalk eraser, furtherly, is a kind of chalk eraser with dust collection mechanism.
The existing chalk eraser that is used for blackboard only is a kind of felted terxture mostly, not only wipes the blackboard dust from flying, have a strong impact on the healthy of Faculty and Students, particularly the physical effects to instructors is big especially, and after using a period of time, also can produce the sordid problem that wipes.Though for many years, many people have thought that many various ways attempt to address this problem, and after making great efforts for a long time, this problem still is not well solved.
The purpose of this utility model provide a kind of easy to use, can eliminate effectively and use the dust that is produced in the chalk process, the healthy dust suction chalk eraser that ensures Faculty and Students.
Technical solution of the present utility model is: a kind of dust suction chalk eraser, it has adopted special structure design: the shell of a double as support is arranged, motor is housed in the shell, supercharging dirt brush and dust suction wheel are housed on the motor shaft, the dust suction wheel links to each other with dust-collecting cavity.
Motor described in the utility model adopts two low voltage DC motors, and correspondingly, supercharging dirt brush and dust suction wheel also respectively have two.Certainly, also can adopt other suitable quantity and structural designs.
Vacuum chamber described in the utility model is between two dust suction wheels.Certainly, also can adopt other suitable versions.
Supercharging dirt described in the utility model has brushed three to six brush bodies, the slightly eccentric mounting structure of all employing levels of each brush body, and become 30 ° of angles with vertical plane, bristle is equipped with on each brush body top.Can certainly adopt other suitable version.
The anti-scattered cover of supercharging dirt brush outside flying dust described in the utility model.The shell dorsal part is equipped with annular hand grip.Have dust-exhausting port and exhaust outlet on the shell.Certainly, also can adopt other suitable versions.
The utility model has the advantages that: novel and reasonable structure, easy to use and carry, dust suction is more complete, can eliminate effectively and use the dust that is produced in the chalk process, helps ensureing the healthy of Faculty and Students.
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation of a kind of dust suction chalk eraser of the present utility model;
Fig. 2 is the front view of dust suction chalk eraser of the present utility model;
Fig. 3 is the reverse view of dust suction chalk eraser of the present utility model.
Fig. 1, Fig. 2, Fig. 3 have described an embodiment of the present utility model jointly.In this embodiment, the shell 4 of a double as support is arranged, motor 3 is housed in the shell 4, one-level supercharging dirt brush 1 and two-stage supercharging dust suction wheel 2 are housed on 3 in the motor, two-stage supercharging dust suction wheel 2 is connected with dust-collecting cavity 5.Motor 3 has adopted two low voltage DC motors, and correspondingly, one-level supercharging dirt brush 1 and two-stage supercharging dust suction wheel 2 also respectively have two.Vacuum chamber 5 is between two two-stage supercharging dust suction wheels 2.On the supercharging dirt brush 1 three to six brush bodies are arranged, the slightly eccentric mounting structure of all employing levels of each brush body, and become 30 ° of angles with vertical plane, bristle is equipped with on each brush body top.Supercharging dirt is brushed the anti-scattered cover 9 of 1 outside flying dust.Shell 4 dorsal parts are equipped with annular hand grip 10 and power switch 11, and are connected with power line 13 (can have voltage-stabilized power supply).Have dust-exhausting port 6 and exhaust outlet 7 on the shell 4.
The work of the foregoing description is former bury for: the axle of one-level supercharging dirt brush 1 and two-stage supercharging dust suction wheel 2 is installed on the output shaft of direct current generator 3 for conjuncted type, and rotation at a high speed thereupon, because of one-level supercharging dirt brush 1 is provided with 30 ° of inclination angles is again counter-rotating, when the brush chalk dust is wiped in rotation, air-flow is produced to the two-stage supercharging dust suction take turns 2 center air-inlet cavity air-supplies, so claim " one-level supercharging ".Two-stage supercharging dust suction wheel 2 is the centrifugal wheel of center cavity air intake, and it will carry out two-stage supercharging from the supercharging wind of one-level dust-laden, send into dust-collecting cavity 5 again.Dust-collecting cavity 5 ties up to " p " font chamber in the shell 4 of double as support, and mistress's arrow direct bearing airflow direction below makes the dust of gravity follow blast that most of dust is accumulated in dust-exhausting port 6 places like this.Exhaust outlet 7 is located at the top, " P " font chamber in the shell 4 of double as support, and the back pressure wind that backflows can flow out thus like this.The shell 4 of double as support can be discharged through filtering the back the wind that has micro mist dirt from two-stage supercharging dust suction wheel 2.Dust-exhausting port 6 when feeling that pick-up performance descends, can be opened the lid of dust-exhausting port 6 after having used a period of time when this machine, behind the removing laying dust, just can recover normal use again.
Claims (7)
1, a kind of dust suction chalk eraser is characterized in that: the shell of a double as support is arranged, motor is housed in the shell, supercharging dirt brush and dust suction wheel are housed on the motor shaft, the dust suction wheel links to each other with dust-collecting cavity.
2, dust suction chalk eraser according to claim 1 is characterized in that: motor adopts two low voltage DC motors, and correspondingly, supercharging dirt brush and dust suction wheel also respectively have two.
3, dust suction chalk eraser according to claim 2 is characterized in that: vacuum chamber is between two dust suction wheels.
4, according to claim 1 or 2,3 described dust suction chalk erasers, it is characterized in that: supercharging dirt has brushed three to six brush bodies, the slightly eccentric mounting structure of all employing levels of each brush body, and become 30 ° of angles with vertical plane, bristle is equipped with on each brush body top.
5, dust suction chalk eraser according to claim 4 is characterized in that: the anti-scattered cover of supercharging dirt brush outside flying dust.
6, according to claim 1 or 2,3 described dust suction chalk erasers, it is characterized in that: the shell dorsal part is equipped with annular hand grip.
7, according to claim 1 or 2,3 described dust suction chalk erasers, it is characterized in that: have dust-exhausting port and exhaust outlet on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219300 CN2428307Y (en) | 2000-01-28 | 2000-01-28 | Dust-suction chalk eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219300 CN2428307Y (en) | 2000-01-28 | 2000-01-28 | Dust-suction chalk eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2428307Y true CN2428307Y (en) | 2001-05-02 |
Family
ID=33584508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00219300 Expired - Fee Related CN2428307Y (en) | 2000-01-28 | 2000-01-28 | Dust-suction chalk eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2428307Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691064A (en) * | 2015-07-13 | 2016-06-22 | 中山市丰申电器有限公司 | Energy-storage type chalk wiper with supercharger |
-
2000
- 2000-01-28 CN CN 00219300 patent/CN2428307Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691064A (en) * | 2015-07-13 | 2016-06-22 | 中山市丰申电器有限公司 | Energy-storage type chalk wiper with supercharger |
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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 |