CN2177607Y - Dust-obsorbing blackboard eraser - Google Patents
Dust-obsorbing blackboard eraser Download PDFInfo
- Publication number
- CN2177607Y CN2177607Y CN 94201692 CN94201692U CN2177607Y CN 2177607 Y CN2177607 Y CN 2177607Y CN 94201692 CN94201692 CN 94201692 CN 94201692 U CN94201692 U CN 94201692U CN 2177607 Y CN2177607 Y CN 2177607Y
- Authority
- CN
- China
- Prior art keywords
- dust
- filter screen
- protecgulum
- chamber
- dust storage
- 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 discloses a dust-absorbing blackboard eraser, which is composed of a motor, a power supply, an impeller, a brush body, a dust removing chamber, etc. The utility model is characterized in that the dust removing chamber is composed of double dust collector chambers and double filter nets. Through two-stage filtration, the dust is collected in the double dust collector chambers, and the utility model has the functions of purifying air and protecting the health of human body.
Description
The utility model relates to a kind of dust-collecting type blackboard brush, belongs to the teaching aid field.
For a long time, dust from flying when erasing the board is absorbed by the human lung, is seriously wrecking teaching job garden worker's physical and mental health.Therefore, people are constantly studying the dust-absorbing blackboard brush that can absorb dust.The dust suction scrubbing brush that sees report now mainly contains two classes: the disclosed technology of a class such as ZL92205631.5, be brush body is made cylindrical, brush body rolled dust is involved in dust storage chamber when utilization erased the board, to reduce dust pollution, this class apparatus structure is simple, but dedusting is also incomplete, and the dust of suction also drops out easily again; Another kind of is the electric dust absorption scrubbing brush, be to utilize driven by motor wheel rotation generation negative pressure that dust is sucked to reach the dedusting purpose in the dust storage chamber, as disclosed among the ZL92246044.2, this class device dust suction is comparatively thorough, but because air flows soon, some superfine dust pass filter screen again easily and reenter in the air.
The purpose of this utility model is improved the above-mentioned second class scrubbing brush exactly, and a kind of dust suction, the more slap-up dust-collecting type blackboard brush of filter dirt are provided.
The utility model dust-collecting type blackboard brush is made up of motor, power supply, casing, protecgulum, bonnet, impeller, brush body and dedusting chamber, the rear chassis internal upper part is fixed with motor, the bottom is equipped with power supply, on the casing front end motor shaft impeller is housed, the impeller front is equipped with brush body, has air inlet on the brush body, and the casing bottom is the dedusting chamber, dedusting has protecgulum before the chamber, and air outlet is arranged on the protecgulum.
Feature of the present utility model is that described dedusting chamber is made up of two dust storage chambers and double filter screen, and first dust storage chamber communicates with air inlet, separates with the ground floor filter screen between first dust storage chamber and second dust storage chamber, and second dust storage chamber communicates with air outlet every second layer filter screen.Adopt push/pull slot to be connected between protecgulum and the casing.
Described ground floor filter screen is contained on the protecgulum, and can take off, and second layer filter screen is close on the air outlet.
The wire side of ground floor filter screen is shaped as serrated face shape.
Owing to adopted two dust storage chambers and double filter screen structure, compare with the described electric dust absorption scrubbing brush of background technology, the dust suction filter dirt effect of the utility model dust-collecting type blackboard brush is better, simultaneously, because the air gas circuit is designed to Cyclotron, increase resistance, air has been flowed slow down, be beneficial to dust settling, and, ground floor filter screen wire side is made serrated face shape, has increased screen area, and filter dirt is more thorough.
Embodiment of the present utility model can further be illustrated in conjunction with the accompanying drawings.
Fig. 1 is the front view of the utility model dust-collecting type blackboard brush;
Fig. 2 is the A-A view of Fig. 1;
As shown in Figure 1 and Figure 2, the rear portion in casing (7) is fixed with motor (12) above, is equipped with power supply (14) below, and external application bonnet (16) lid is tight, and lever one side has switch (4); The front portion of casing (7), on motor (12) axle, impeller (1) is installed, impeller (1) front is brush body (2), the centre has air inlet (3), dedusting chamber on the logical lever of air inlet (3), protecgulum (8) is arranged on the lever, have air outlet (9) above, be glued with the second layer filter screen (10) that silk screen is made on the inboard air outlet of protecgulum (8) (9), the ground floor filter screen (13) that copper mesh is made also is housed on the protecgulum (8), can take off, for increasing filter dirt area, ground floor filter screen (13) wire side is made serrated face shape, and the space between second layer filter screen (10) and the ground floor filter screen (13) constitutes second dust storage chamber (6), space between casing (7) and the ground floor filter screen (13) constitutes first dust storage chamber (15), and being connected between protecgulum (8) and the shell (7) adopted the push/pull slot structure.For placing conveniently, can be provided with eyelet (11) in the lever bottom, fasten band and hang use.
During work, wheel rotation produces negative pressure, the dust suction dedusting chamber that brush body brush, through double-filtration with dust collection in two dust storage chambers.Take off protecgulum, collect the dust in first dust storage chamber (15), take off ground floor filter screen (13), collect the dust in second dust storage chamber (6).
Described dust-collecting type blackboard brush also can be used for dust suction, the dedusting of family and other aspect.
Claims (3)
1, dust-collecting type blackboard brush, form by motor, power supply, casing, protecgulum, bonnet, impeller, brush body and dedusting chamber, the rear chassis internal upper part is fixed with motor, top is equipped with power supply, on the casing front end motor shaft impeller is housed, and the impeller front is equipped with brush body, have air inlet on the brush body, the casing bottom is the dedusting chamber, and dedusting has protecgulum before the chamber, and protecgulum is provided with air outlet; It is characterized in that: described dedusting chamber is made up of two dust storage chambers and double filter screen, first dust storage chamber (15) communicates with air inlet (3), separate with ground floor filter screen (5) between first dust storage chamber (15) and second dust storage chamber (6), second dust storage chamber (6) communicates with air outlet (9) every second layer filter screen (10); Adopt push/pull slot to be connected between protecgulum (8) and the casing (7).
2, the described dust-collecting type blackboard brush of claim 1 is characterized in that described ground floor filter screen (5) is contained in protecgulum (8) and goes up and can take off, and second layer filter screen (10) is close on the air outlet (9).
3, claim 1,2 described dust-collecting type blackboard brush is characterized in that described ground floor filter screen (15) wire side is shaped as serrated face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94201692 CN2177607Y (en) | 1994-01-20 | 1994-01-20 | Dust-obsorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94201692 CN2177607Y (en) | 1994-01-20 | 1994-01-20 | Dust-obsorbing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177607Y true CN2177607Y (en) | 1994-09-21 |
Family
ID=33821661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94201692 Expired - Fee Related CN2177607Y (en) | 1994-01-20 | 1994-01-20 | Dust-obsorbing blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177607Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522859A (en) * | 2015-12-14 | 2016-04-27 | 商洛学院 | Rotary type electric blackboard eraser |
-
1994
- 1994-01-20 CN CN 94201692 patent/CN2177607Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522859A (en) * | 2015-12-14 | 2016-04-27 | 商洛学院 | Rotary type electric blackboard eraser |
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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 |