CN201073878Y - Dust-collecting type blackboard eraser for schools - Google Patents
Dust-collecting type blackboard eraser for schools Download PDFInfo
- Publication number
- CN201073878Y CN201073878Y CNU2007200229459U CN200720022945U CN201073878Y CN 201073878 Y CN201073878 Y CN 201073878Y CN U2007200229459 U CNU2007200229459 U CN U2007200229459U CN 200720022945 U CN200720022945 U CN 200720022945U CN 201073878 Y CN201073878 Y CN 201073878Y
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- CN
- China
- Prior art keywords
- felt
- roll
- utility
- model
- rolls
- 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 relates to a dust gathering blackboard eraser, which comprises a casing body, a dust collecting room, a plurality of felt rolls, a plurality of brush rolls and a rotating axle. Two brush rolls are arranged in the middle under the casing body in parallel, the brush roll adopts a bristle brush form, the rotating axle is arranged at both ends of the brush roll, the inner end of the rotating axle is fixedly connected with a brush roll end, and the outer end of the rotating axle is arranged on the end side wall of the casing body in the form of rotation. The felt roll is respectively arranged on the outer side surface of the two washed brush rolls in parallel with the brush roll, a felt form roll body is arranged on the outer surface of the felt roll, and the rotating axle is also arranged at both ends of the felt roll. The dust collecting room is arranged on the outer side surface of the two felt rolls, namely, the inner sides of the two side edges of the casing body. The dust gathering blackboard eraser of the utility model is held by one hand, to cause four rotating rolls under the casing body to be rolled and scrubbed on the blackboard, the blackboard can be scrubbed, and the chalk dust can be collected in the dust collecting room. The utility model has the advantages that the overall structure is simple, the operation and the using are convenient, in particular, the utility model is not required to be equipped with a power supply, the production cost is low, the use cost is low, and thus the utility model is suitable for being popularized and used in the school.
Description
Technical field:
The utility model relates to teaching aid, relates in particular to school with gathering dirt formula blackboard eraser.
Background technology:
On class writing on the blackboard is the important step of school instruction, erases the board and unavoidable dust flies upward.The problem that also has many people once to attempt to solve the airborne dust that erases the board with the form of electric dust absorption, but too high daily cost of use also can not obtain promoting and actual application.
The utility model content:
The purpose of this utility model is, overcomes the deficiencies in the prior art part, provides a kind of school with poly-dirt formula blackboard eraser, when easily erasing the board, can prevent preferably that dust from flying upward, and is the environment in the protection classroom, protects teachers and students' health on class especially.
School described in the utility model is with gathering dirt formula blackboard eraser, including housing, dust compartment, felt roll, hair roller and rotating shaft forms, said housing is the main component of school described in the utility model with poly-dirt formula blackboard eraser, the form that roughly is cuboid on the whole, housing top is hand-held face, is used to install the blackboard scraper below the housing.Below said housing, be set side by side with two hair rollers between two parties, said hair roller adopts the bristle brush form, and the two ends of hair roller are provided with rotating shaft, and fixedly connected with the hair roller end in the inner of rotating shaft, and the outer end of rotating shaft is arranged on the distolateral wall of housing with rotation formula.At the lateral surface of said two hair rollers, respectively be provided with a felt roll side by side with the hair roller, said felt roll is the roll body that is provided with the felt form at outer surface.As the form that is provided with of hair roller, also be provided with rotating shaft at the two ends of felt roll.At the lateral surface of two felt rolls, just, be provided with dust compartment in housing dual-side inboard.Hand-held poly-dirt formula blackboard eraser described in the utility model, make following four live-rollers rolling friction on blackboard, two hair rollers that are provided with placed in the middle can make attached to the chalk mark on the blackboard surface and break away from, the felt roll that is arranged on side plays smart effect of wiping on the one hand, and the chalk dust that on the other hand wiping is taken off is collected and entered in the dust compartment.
School described in the utility model is simple, easy for operation with poly-dirt formula blackboard eraser overall structure, and especially the utility model does not need power supply, and production cost is low, and use cost is low, is adapted at promoting the use of in the school.
Description of drawings:
Accompanying drawing is the structural representation of school described in the utility model with poly-dirt formula blackboard eraser.Accompanying drawing 1 is a structural representation of looking up state; Accompanying drawing 2 is structural representations of side-looking state.1-housing 2-dust compartment 3-felt roll 4-hair roller 5-rotating shaft
The specific embodiment:
Referring now to accompanying drawing 1 and accompanying drawing 2, be described as follows in conjunction with the embodiments: school described in the utility model is with gathering dirt formula blackboard eraser, including housing 1, dust compartment 2, felt roll 3, hair roller 4 and rotating shaft 5 forms, said housing 1 is the main component of school described in the utility model with poly-dirt formula blackboard eraser, the form that roughly is cuboid on the whole, housing 1 top is hand-held face, is used to install the blackboard scraper below the housing 1.Below said housing 1, be set side by side with two hair rollers 4 between two parties, said hair roller 4 adopts the bristle brush form, and the two ends of hair roller 4 are provided with rotating shaft 5, fixedly connected with the hair roller end in the inner of rotating shaft 5, the outer end of rotating shaft 5 is arranged on the distolateral wall of housing 1 with rotation formula.At the lateral surface of said two hair rollers 4, respectively be provided with a felt roll 3 side by side with hair roller 4, said felt roll 3 is the roll bodies that are provided with the felt form at outer surface.As the form that is provided with of hair roller 4, also be provided with rotating shaft 5 at the two ends of felt roll 3.At the lateral surface of two felt rolls 3, just, be provided with dust compartment 2 in housing 1 dual-side inboard.Hand-held poly-dirt formula blackboard eraser described in the utility model, make following four live-rollers rolling friction on blackboard, two hair rollers 4 that are provided with placed in the middle can make attached to the chalk mark on the blackboard surface and break away from, the felt roll 3 that is arranged on side plays smart effect of wiping on the one hand, and the chalk dust that on the other hand wiping is taken off is collected and entered in the dust compartment 2.School described in the utility model is simple, easy for operation with poly-dirt formula blackboard eraser overall structure, and especially the utility model does not need power supply, and production cost is low, and use cost is low, is adapted at promoting the use of in the school.
Claims (2)
1. school is with gathering dirt formula blackboard eraser, it is characterized in that housing (1) below, be set side by side with two hair rollers (4) between two parties, said hair roller (4) adopts the bristle brush form, the two ends of hair roller (4) are provided with rotating shaft (5), fixedly connected with the hair roller end in the inner of rotating shaft (5), the outer end of rotating shaft (5) is arranged on the distolateral wall of housing (1) with rotation formula; Lateral surface in hair roller (4) respectively is provided with a felt roll (3) side by side with hair roller (4), and said felt roll (3) is the roll body that is provided with the felt form at outer surface.
2. school according to claim 1 is characterized in that the lateral surface in two felt rolls (3) with poly-dirt formula blackboard eraser, just in housing (1) dual-side inboard, is provided with dust compartment (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200229459U CN201073878Y (en) | 2007-05-30 | 2007-05-30 | Dust-collecting type blackboard eraser for schools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200229459U CN201073878Y (en) | 2007-05-30 | 2007-05-30 | Dust-collecting type blackboard eraser for schools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201073878Y true CN201073878Y (en) | 2008-06-18 |
Family
ID=39519140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200229459U Expired - Fee Related CN201073878Y (en) | 2007-05-30 | 2007-05-30 | Dust-collecting type blackboard eraser for schools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201073878Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350597A (en) * | 2013-07-30 | 2013-10-16 | 赵夫超 | Environment-friendly type dust-free blackboard eraser |
-
2007
- 2007-05-30 CN CNU2007200229459U patent/CN201073878Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350597A (en) * | 2013-07-30 | 2013-10-16 | 赵夫超 | Environment-friendly type dust-free blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 |