CN204506277U - A kind of dust-removing blackboard eraser - Google Patents
A kind of dust-removing blackboard eraser Download PDFInfo
- Publication number
- CN204506277U CN204506277U CN201520188120.9U CN201520188120U CN204506277U CN 204506277 U CN204506277 U CN 204506277U CN 201520188120 U CN201520188120 U CN 201520188120U CN 204506277 U CN204506277 U CN 204506277U
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- China
- Prior art keywords
- dust
- substrate
- slideway
- hairbrush
- slide block
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Abstract
The utility model discloses a kind of dust-removing blackboard eraser.It comprises hairbrush, substrate, dust arrester, and hairbrush is fixed on the front of substrate, two end faces up and down of substrate are arranged with horizontal slideway, in slideway, are respectively provided with two slide blocks, dust arrester comprises the dedusting structure that two frame structures and two are separately positioned on the hairbrush left and right sides, the clamping lever that each frame structure comprises upper and lower two working beams be arranged in parallel and is connected between two working beams, the working beam cross-articulation of two frame structures, the outside of the other end of two working beams of each frame structure corresponding slide block respectively on two end faces upper and lower with substrate is hinged, each dedusting structure comprises dust-removing rod, be arranged on the hard hair brush inside dust-removing rod, be connected to the dust cover on dust-removing rod, the top and bottom of dust-removing rod connect respectively by the corresponding slide block on upper and lower two end faces of connecting rod and substrate, the spring mechanism be connected with the slide block in slideway is respectively equipped with in the left and right sides of substrate.
Description
Technical field
The utility model relates to a kind of blackboard eraser, and particularly a kind of dust-removing blackboard eraser, belongs to teaching aid.
Background technology
During letter written with chalk on erasing blackboard of the blackboard eraser of existing teaching, the chalk dust of erasing often flies upward everywhere, affects the healthy of Faculty and Students.
Summary of the invention
For the above-mentioned shortcoming existed in prior art, the utility model provides a kind of dust-removing blackboard eraser that can prevent chalk dust from flying upward.
The utility model is achieved by the following technical solution: a kind of dust-removing blackboard eraser, is characterized in that: comprise hairbrush, rectangular-shaped substrate, dust arrester, described hairbrush is fixed on the front of substrate, two end faces up and down of described substrate are arranged with horizontal slideway, in described slideway, are respectively provided with two slide blocks, described dust arrester comprises the dedusting structure that two frame structures being arranged on substrate back and two are separately positioned on the described hairbrush left and right sides, the clamping lever that each frame structure comprises upper and lower two working beams be arranged in parallel and is vertically connected between two working beam one end, the working beam cross-articulation of two frame structures, the outside of the corresponding slide block in the other end of two working beams of each frame structure slideway respectively on two end faces upper and lower with described substrate is hinged, each dedusting structure comprises the dust-removing rod vertically arranged, be arranged on the hard hair brush inside dust-removing rod, be connected to the dust cover on dust-removing rod, the bristle of described hard hair brush is towards described hairbrush, the top and bottom of described dust-removing rod connect respectively by the corresponding slide block in the slideway on upper and lower two end faces of connecting rod and substrate, correspond to each described slideway in the left and right sides of substrate and be respectively equipped with the spring mechanism be connected with the slide block in slideway.
When the utility model uses, with holding dynamic two clamping levers, by the slide block action that clamping lever drives working beam and is connected with working beam, thus drive dedusting structure action by slide block, hard hair brush on dedusting structure carries out dedusting to the chalk dust on hairbrush in course of action, and the dust cover on dedusting structure is used for preventing dust from flying.The spring mechanism be connected with slide block can ensure that working beam can reset in time.
For ease of the removing to chalk dust, the bristle of described hard hair brush tilts to the outside of described hairbrush.
For ease of using blackboard eraser, the back side of described substrate is provided with handle.
The beneficial effects of the utility model are: the utility model passes through with holding dynamic clamping lever, dedusting can be carried out easily to the chalk dust on the hairbrush of blackboard eraser, by the dust cover of hairbrush both sides, dust is gathered while dedusting, effectively prevent chalk dust from flying upward everywhere, reduce the possibility that chalk dust is sucked by teacher and classmate, alleviate chalk dust to teacher and the healthy impact caused of classmate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1 is blackboard eraser, and 2 is substrates, and 3 is hard hair brushs, and 4 is connecting rods, and 5 is dust-removing rods, and 6 is dust covers, and 7 is clamping levers, and 8 is handles, and 9 is working beams, and 10 is spring-fixed structures, and 11 is springs, and 12 is slide blocks, and 13 is fixed bars, and 14 is slideways.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is further described below by non-limiting embodiment:
As shown in drawings, a kind of dust-removing blackboard eraser, it comprises hairbrush 1, rectangular-shaped substrate 2, dust arrester, and described hairbrush 1 is fixed on the front of substrate 2.Two end faces up and down of described substrate 2 are arranged with horizontal slideway 14, are respectively provided with two slide blocks 12 in each slideway 14, slide block 12 can slide in slideway 14.The slide block 12 being positioned at the upper surface of substrate 2 protrudes from the upper surface of substrate 2, and the slide block 12 being positioned at the lower surface of substrate 2 protrudes from the lower surface of substrate 2.Described dust arrester comprises the dedusting structure that two frame structures being arranged on substrate 2 back side and two are separately positioned on described hairbrush 1 left and right sides, the clamping lever 7 that each described frame structure comprises upper and lower two working beams be arranged in parallel 9 and is vertically connected between two working beam 9 one end, working beam 9 cross-articulation of two frame structures, that is: superposed two working beams 9 of two frame structures cross-articulation mutually, is positioned at two working beams 9 cross-articulation mutually of bottom.The other end of two working beams 9 of each frame structure is hinged with the outside of the corresponding slide block 12 in the slideway 14 on substrate about 2 two end faces respectively.Each dedusting structure comprise vertically arrange dust-removing rod 5, be arranged on the hard hair brush 3 inside dust-removing rod 5, the dust cover 6 be connected on dust-removing rod 5, the bristle of described hard hair brush 3 is arranged towards hairbrush 1, preferably, the bristle of hard hair brush 3 tilts to the outside of hairbrush 1.The top and bottom of dust-removing rod 5 connect respectively by the corresponding slide block 12 in the slideway 14 on connecting rod 4 and substrate about 2 two end faces.Dust cover 6 is connected to the outer end of dust-removing rod, and hairbrush 1 is gone along with sb. to guard him therein by the dust cover 6 of the left and right sides.Correspond to each slideway 14 in the left and right sides of substrate 2 and be respectively equipped with spring mechanism, each spring mechanism comprises spring-fixed structure 10 and spring 11, spring-fixed structure 10 is fixing on a substrate 2, spring 11 one end is connected with spring-fixed structure 10, and its other end is connected with the slide block 12 in slideway 14.On the upper surface that the other end being connected to a fixed bar 13, two fixed bars 13 in two pin joint positions up and down of two frame structures is separately fixed at substrate 2 and lower surface.Handle 8 is provided with at the back side of substrate 2.
When the utility model uses, with holding dynamic two clamping levers 7, working beam 9 action is driven by clamping lever 7, working beam 9 drives connected slide block 12 to slide along slideway 14, thus drive dedusting structure action by slide block 14, hard hair brush 3 on dedusting structure carries out dedusting to the chalk dust on hairbrush 1 in course of action, and the dust cover 6 on dedusting structure is for preventing dust from flying.The spring 11 be connected with slide block 12, for providing spring force, can ensure that slide block 12 and working beam 9 can reset in time.
The utility model can effectively prevent chalk dust from flying upward everywhere, reduces the possibility that chalk dust is sucked by teacher and classmate, alleviates chalk dust to teacher and the healthy impact caused of classmate.
Other parts in the present embodiment adopt known technology, do not repeat them here.
Claims (3)
1. a dust-removing blackboard eraser, is characterized in that: comprise hairbrush (1), rectangular-shaped substrate (2), dust arrester, described hairbrush (1) is fixed on the front of substrate (2); Two end faces up and down of described substrate (2) are arranged with horizontal slideway (14), in described slideway (14), are respectively provided with two slide blocks (12); described dust arrester comprises the dedusting structure that two frame structures being arranged on substrate (2) back side and two are separately positioned on described hairbrush (1) left and right sides, the clamping lever (7) that each frame structure comprises upper and lower two working beams be arranged in parallel (9) and is vertically connected between two working beam (9) one end, working beam (9) cross-articulation of two frame structures, the outside of the corresponding slide block (12) in the other end of two working beams (9) of each frame structure slideway (14) respectively on two end faces upper and lower with described substrate (2) is hinged, each dedusting structure comprises the dust-removing rod (5) vertically arranged, be arranged on the hard hair brush (3) of dust-removing rod (5) inner side, be connected to the dust cover (6) on dust-removing rod (5), the bristle of described hard hair brush (3) is towards described hairbrush (1), the top and bottom of described dust-removing rod (5) connect respectively by the corresponding slide block (12) in the slideway (14) on upper and lower two end faces of connecting rod (4) and substrate (2), correspond to each described slideway (14) in the left and right sides of substrate (2) and be respectively equipped with the spring mechanism be connected with the slide block (12) in slideway (14).
2. dust-removing blackboard eraser according to claim 1, is characterized in that: the bristle of described hard hair brush (3) tilts to the outside of described hairbrush (1).
3. dust-removing blackboard eraser according to claim 1, is characterized in that: the back side of described substrate (2) is provided with handle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188120.9U CN204506277U (en) | 2015-03-31 | 2015-03-31 | A kind of dust-removing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188120.9U CN204506277U (en) | 2015-03-31 | 2015-03-31 | A kind of dust-removing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204506277U true CN204506277U (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520188120.9U Expired - Fee Related CN204506277U (en) | 2015-03-31 | 2015-03-31 | A kind of dust-removing blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204506277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484067A (en) * | 2018-11-21 | 2019-03-19 | 李宜芳 | A kind of movable fixture adsorbing classroom blackboard dust |
-
2015
- 2015-03-31 CN CN201520188120.9U patent/CN204506277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484067A (en) * | 2018-11-21 | 2019-03-19 | 李宜芳 | A kind of movable fixture adsorbing classroom blackboard dust |
| CN109484067B (en) * | 2018-11-21 | 2020-07-14 | 李宜芳 | Movable device for adsorbing dust on blackboard in classroom |
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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: 20150729 Termination date: 20160331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |