CN202448613U - Labor-saving pollution-free blackboard eraser - Google Patents
Labor-saving pollution-free blackboard eraser Download PDFInfo
- Publication number
- CN202448613U CN202448613U CN2012200543451U CN201220054345U CN202448613U CN 202448613 U CN202448613 U CN 202448613U CN 2012200543451 U CN2012200543451 U CN 2012200543451U CN 201220054345 U CN201220054345 U CN 201220054345U CN 202448613 U CN202448613 U CN 202448613U
- Authority
- CN
- China
- Prior art keywords
- eraser
- board
- wiping board
- storage tank
- blackboard eraser
- 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 labor-saving pollution-free blackboard eraser, which comprises an eraser board and eraser hairs, wherein the eraser hairs are arranged at the front plane of the eraser board; the eraser board is provided with four strip holes distributed at four sides of the eraser hairs; a roller brush is installed in each strip hole; the roller brush comprises a roller, a spindle fixed at two sides of the roller and cotton cloth wrapping the roller; the spindle is in rotational connection with the eraser board; a dustproof hood is arranged on the back of the eraser board; and a dust storage tank which is communicated with the space between the dustproof hood and the eraser board is arranged at the bottom of the eraser board. By arranging the roller brush, the chalk dust can be collected into the dust storage tank effectively, so that the chalk dust is prevented from flying into the air to cause air pollution, teachers are released from labor burden, and the body health of teachers and students is ensured; and the blackboard eraser is simple in structure, convenient and reliable to use and has a good popularization value.
Description
Technical field
The utility model relates to a kind of blackboard eraser.
Technical background
The chalk dust of being kicked up when in the classroom, erasing the board has seriously influenced the healthy of academics and students.At present; The blackboard eraser that has motor is arranged on the market, and this blackboard eraser utilizes the driven by motor fan to rotate the suction that brings chalk dust is siphoned away, and this blackboard eraser is because the restriction of volume; It is limited that fan rotates the suction that brings; Also can not be with the chalk dust wash clean on the blackboard eraser, and cause blackboard eraser weight significantly to increase, bring bigger physical load for the excessive teacher of physical demands originally.
Summary of the invention
The technical problem that the utility model will solve is: a kind of laborsaving pollution-free blackboard eraser is provided, and it can avoid flying upward in the air of chalk dust, can not increase physical load to teacher again simultaneously.
In order to solve the problems of the technologies described above; The utility model comprises the snag that wiping board is positive with being arranged on wiping board, and described wiping board is provided with four four strip holes that are distributed in snag four sides, and a rotary broom is installed in each strip hole; Rotary broom comprises cylinder, is fixed on the rotating shaft of cylinder both sides and is wrapped in the cotton on the cylinder; Rotating shaft and wiping board are rotationally connected, and the back side of wiping board is provided with dust cover, the bottom of wiping board be provided with dust cover and wiping board between the bulk cement storage tank that communicates of space.
Get into bulk cement storage tank in order more to help chalk dust, be provided with reclinate baffle plate between described bulk cement storage tank and the dust cover, form the import that is communicated with dust cover and bulk cement storage tank between baffle plate and the wiping board.
The beneficial effect of the utility model is: the utility model is through being provided with rotary broom, can be effectively with the collecting in the bulk cement storage tank of chalk dust, avoid flying upward in the air of chalk dust; Make air pollution-free; Can not increase physical load to teacher again, guarantee the healthy of academics and students, the utility model is simple in structure; Use lightly, reliable, have excellent popularization and be worth.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Wherein: 1, wiping board, 2, rotary broom, 3, snag, 4, bulk cement storage tank, 5, dust cover, 6, baffle plate.
The specific embodiment
A kind of blackboard eraser as depicted in figs. 1 and 2; Comprise wiping board 1 and the snag 3 that is arranged on wiping board 1 front, wiping board 1 is provided with four four strip holes that are distributed in snag 3 four sides, and a rotary broom 2 is installed in each strip hole; Rotary broom 2 comprises cylinder, is fixed on the rotating shaft of cylinder both sides and is wrapped in the cotton on the cylinder; Two rotating shafts and wiping board 1 are rotationally connected, and the back side of wiping board 1 is provided with dust cover 5, the bottom of wiping board 1 be provided with dust cover 5 and wiping board 1 between the bulk cement storage tank 4 that communicates of space; Be provided with reclinate baffle plate 6 between bulk cement storage tank 4 and the dust cover 5, form the import that is communicated with dust cover 5 and bulk cement storage tank 4 between baffle plate 6 and the wiping board 1.
When erasing the board; Blackboard eraser is pressed on the blackboard all contacts with rotary broom 2 with blackboard up to snag 3; Blackboard eraser then moves up and down; Brush 2 at the function of friction bottom roll and rotate, the chalk dust under the rotary broom 2 that rotates this moment is wiped snag 3 simultaneously is involved in the dust cover 5, and chalk dust is fallen in the wiping board 1 following bulk cement storage tank 4 then.Baffle plate 6 can further reduce flying upward of chalk dust, has both helped chalk dust and has fallen into bulk cement storage tank 4, can prevent the chalk dust into dust cover that wafts again.
Claims (2)
1. laborsaving pollution-free blackboard eraser; Comprise the snag that wiping board is positive with being arranged on wiping board, it is characterized in that: described wiping board is provided with four four strip holes that are distributed in snag four sides, and a rotary broom is installed in each strip hole; Rotary broom comprises cylinder, is fixed on the rotating shaft of cylinder both sides and is wrapped in the cotton on the cylinder; Rotating shaft and wiping board are rotationally connected, and the back side of wiping board is provided with dust cover, the bottom of wiping board be provided with dust cover and wiping board between the bulk cement storage tank that communicates of space.
2. blackboard eraser according to claim 1 is characterized in that: be provided with reclinate baffle plate between bulk cement storage tank and the dust cover, form the import that is communicated with dust cover and bulk cement storage tank between baffle plate and the wiping board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543451U CN202448613U (en) | 2012-02-20 | 2012-02-20 | Labor-saving pollution-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543451U CN202448613U (en) | 2012-02-20 | 2012-02-20 | Labor-saving pollution-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202448613U true CN202448613U (en) | 2012-09-26 |
Family
ID=46864503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200543451U Expired - Fee Related CN202448613U (en) | 2012-02-20 | 2012-02-20 | Labor-saving pollution-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202448613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278968A (en) * | 2013-05-20 | 2013-09-04 | 京东方科技集团股份有限公司 | Method for manufacturing friction cloth, rotary drum and liquid crystal alignment angle and method for cleaning up chippings |
-
2012
- 2012-02-20 CN CN2012200543451U patent/CN202448613U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278968A (en) * | 2013-05-20 | 2013-09-04 | 京东方科技集团股份有限公司 | Method for manufacturing friction cloth, rotary drum and liquid crystal alignment angle and method for cleaning up chippings |
| US9465255B2 (en) | 2013-05-20 | 2016-10-11 | Boe Technology Group Co., Ltd. | Rubbing cloth, roller, method of forming LC alignment angle and method of cleaning debris |
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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: 20120926 Termination date: 20130220 |