CN2885606Y - Adjustable length blackboard eraser - Google Patents
Adjustable length blackboard eraser Download PDFInfo
- Publication number
- CN2885606Y CN2885606Y CN 200620090189 CN200620090189U CN2885606Y CN 2885606 Y CN2885606 Y CN 2885606Y CN 200620090189 CN200620090189 CN 200620090189 CN 200620090189 U CN200620090189 U CN 200620090189U CN 2885606 Y CN2885606 Y CN 2885606Y
- Authority
- CN
- China
- Prior art keywords
- handle
- connecting rod
- blackboard
- length
- connecting pole
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a length-adjusting blackboard eraser, which comprises a board, a connecting pole and kernel brush; wherein the connecting pole surface is provided with slide groove in long direction and several short slide grooves in turn along the long slide groove. Once the user can not erase the top of the blackboard due to height, he can slide down the handle to make the distance between the handle and the connecting pole larger. When the distance is large enough, he should turn the handle and blocks the convex to the sliding groove then the handle and the connecting pole are fixed mutually. At last, he should take the handle and erase the character on the blackboard with brush. The utility model not only is of reasonable structure, fine looking, extensive usage and simple process, but also changes the length in need of people's demand.
Description
Technical field the utility model relates to a kind of blackboard burnisher, the especially a kind of blackboard eraser that can adjust length.
The technical background blackboard eraser is a kind of convenient and practical burnisher, and people rely on it could effectively clean blackboard.But also there are many problems in present blackboard eraser, and particularly outstanding is exactly to be not easy to people of short and small stature use, because the defective of height, and the top that they can't blackboard wiping.In order to solve this class problem, we provide a kind of new blackboard that can adjust length to wipe.
The summary of the invention the purpose of this utility model provides a kind of adjustable-length blackboard eraser, is used to solve ordinary blackboard eraser and is awkward and can't adjusts problems such as length.
For achieving the above object, the utility model adjustable-length blackboard eraser comprises plank, connecting rod and the bristle that sticks on the plank surface, and the connecting rod top is fixed in the plank side; Offer a chute at the connecting rod surface longitudinal, laterally offer many short grooves that are parallel to each other in turn along edge, the long limit of chute; Cylindricly be enclosed within on the connecting rod, be provided with projection at the handle inwall, and projection can only slide in chute hand-tight.
After adopting said structure, but user's normal use bristle cleaning blackboard, if insufficient height, user's active cylinder shape handle, projection is vertically being slided up and down in the chute, and when being of convenient length, stop to slide slewing circle tubular handle, the projection of its inner surface is stuck in the horizontal concrete chute of this position fixing, thereby effectively increased the length of connecting rod.
The utility model has the advantages that: rational in infrastructure, good looking appearance, be widely used, technology is simple, can change length according to user's demand, be convenient to people's control and use.
Description of drawings Fig. 1 is the overall structure schematic diagram of the utility model adjustable-length blackboard eraser.
The specific embodiment as shown in Figure 1, the utility model adjustable-length blackboard eraser comprises plank 1, connecting rod 2 and the bristle 3 that sticks on plank 1 surface, connecting rod 2 tops are fixed in plank 1 side; Offer a chute 4-1 at connecting rod 2 surface longitudinals, laterally offer many short groove 4-2 that are parallel to each other in turn along edge, the long limit of chute 4-1; Cylindric handle 5 tightly is enclosed within on the connecting rod 2, is provided with projection at handle 5 inwalls, and projection can only slide in chute 4.Wherein, connecting rod 2 is made for cylindrical timber or steel, pluggable connection or be threaded in plank 1 side surface; Vertical chute 4-1 and many vertical the communicating of horizontal concrete chute 4-2; The bump width of handle 5 inner surfaces is slightly less than the chute width.When using, the user holds connecting rod 2 usefulness bristles 3 cleaning blackboard panels; In case the user is because height is former thereby can't blackboard wiping top the time, earlier downward sliding cylinder shape handle 5, distance between itself and the connecting rod 2 is widened, when connecting rod 2 with handle 5 during apart from the sum long enough, user's swing handle 5 sticks into horizontal concrete chute 4-2 inside to its inner projection, can mutual interlock fix between handle 5 and the connecting rod 2 this moment, and last user holds handle 5, with the chalk writing on bristle 3 cleaning blackboard tops.
Claims (1)
1, a kind of adjustable-length blackboard eraser, the bristle (3) that comprises plank (1), connecting rod (2) and stick on plank (1) surface, it is characterized in that: connecting rod (2) top is fixed in plank (1) side; Offer a chute (4-1) at connecting rod (2) surface longitudinal, laterally offer many short grooves that are parallel to each other (4-2) in turn along edge, the long limit of chute (4-1); Cylindric handle (5) tightly is enclosed within on the connecting rod (2), is provided with projection at handle (5) inwall, and projection can only slide in chute (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090189 CN2885606Y (en) | 2006-04-04 | 2006-04-04 | Adjustable length blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090189 CN2885606Y (en) | 2006-04-04 | 2006-04-04 | Adjustable length blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2885606Y true CN2885606Y (en) | 2007-04-04 |
Family
ID=37960698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620090189 Expired - Fee Related CN2885606Y (en) | 2006-04-04 | 2006-04-04 | Adjustable length blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2885606Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860759A (en) * | 2011-07-07 | 2013-01-09 | 罗比费尔投资第十私人有限公司 | Barbecue with height adjustable cooking grid |
| CN108338130A (en) * | 2018-04-27 | 2018-07-31 | 贵州黄平县蚕具创新研发有限公司 | A kind of energy saving cocoon harvesting machine |
| CN108973460A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | height-adjustable type dust-proof blackboard eraser |
| CN108973459A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | Multifunctional blackboard for education cleaner |
-
2006
- 2006-04-04 CN CN 200620090189 patent/CN2885606Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860759A (en) * | 2011-07-07 | 2013-01-09 | 罗比费尔投资第十私人有限公司 | Barbecue with height adjustable cooking grid |
| CN108338130A (en) * | 2018-04-27 | 2018-07-31 | 贵州黄平县蚕具创新研发有限公司 | A kind of energy saving cocoon harvesting machine |
| CN108338130B (en) * | 2018-04-27 | 2021-08-06 | 贵州黄平县蚕具创新研发有限公司 | Energy-saving cocoon picking machine |
| CN108973460A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | height-adjustable type dust-proof blackboard eraser |
| CN108973459A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | Multifunctional blackboard for education cleaner |
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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 |