CN203902076U - Eraser for sliding chalkboard - Google Patents
Eraser for sliding chalkboard Download PDFInfo
- Publication number
- CN203902076U CN203902076U CN201420262941.8U CN201420262941U CN203902076U CN 203902076 U CN203902076 U CN 203902076U CN 201420262941 U CN201420262941 U CN 201420262941U CN 203902076 U CN203902076 U CN 203902076U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- sliding
- bar shaped
- boards
- gathering sill
- 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
Abstract
The utility model discloses an eraser for a sliding chalkboard, applicable to the chalkboard comprising two slidable boards. The eraser comprises two elongated erasing boards and two pairs of guide devices; the elongated erasing boards are mounted on the two pairs of guide devices, respectively; each guide device is provided with a hanging slot and a guide slot. When the elongated erasing boards locate at the guide slots, the elongated erasing boards contact the surfaces of the two sliding boards respectively; writings on the chalkboard are erased by sliding the chalkboard. The eraser allows the chalkboard to be erased more conveniently and faster, with time and labor less consumed; the body of a user can be far away from the eraser when the user erases the chalkboard, no dust falls on the body, and cleanness and sanitation are better.
Description
Technical field
The utility model relates to a kind of teaching aid, especially a kind of sliding blackboard blackboard eraser device.
Background technology
At present conventional blackboard eraser is generally smaller, there is no again handle, thereby has following shortcoming: when (1) hand is directly held blackboard eraser and is erased the board, and effort relatively; (2) because blackboard eraser is smaller, with hand, directly holds and may grab not firmly, cause blackboard eraser to drop; (3) with hand, directly hold blackboard eraser and erase the board, chalk powder can directly drop on hand, with it, very unhygienic, and be unfavorable for health.Especially for contain two can extending type plate face blackboard, this little blackboard eraser uses especially wastes time and energy.
Summary of the invention
The purpose of this utility model is the weak point for existing blackboard eraser, designed a kind of for have can upper and lower two blackboards of extending type sliding blackboard blackboard eraser device.
The technical solution of the utility model is:
Sliding blackboard described in the utility model blackboard eraser device, sliding blackboard blackboard eraser device, is comprised of two blackboards that can slide up and down, and blackboard eraser device comprises two bar shaped wiping boards, two pairs of guiding mechanisms; Two pairs of guiding mechanism parallel opposed, on guiding mechanism, be respectively equipped with outstanding grooving and gathering sill, two bar shaped wiping boards and being installed in parallel between two pairs of guiding mechanisms, the bulb at bar shaped wiping board two ends is arranged on respectively in two pairs of gathering sills on guiding mechanism, and bulb external diameter is slightly less than outstanding grooving and gathering sill internal diameter; When the bulb at bar shaped wiping board two ends is during in gathering sill position, two bar shaped wiping boards respectively with the Surface Contact of two Sliding blackboards.
In the gathering sill of guiding mechanism, be provided with elastic device, the elastic device in gathering sill is spring, and guiding mechanism is the centre position in blackboard both sides by bolt mounted in pairs.For the ease of the operation of blackboard eraser device, on described two bar shaped wiping boards, be provided with handle.
Sliding blackboard by the using method of blackboard eraser device is: when not needing with described blackboard blackboard eraser erasing blackboard, be pulled outwardly handle, be pulled to hanged position press, bar shaped wiping board two ends are snapped in to outstanding grooving simultaneously, now, blackboard eraser does not contact with blackboard; When needs erasing blackboard, mention handle, make bar shaped wiping board depart from outstanding grooving, snap in gathering sill, bar shaped wiping board contacts with blackboard surface under the pressure-acting of elastic device, now, pulls up and down blackboard, can erasing blackboard surface.
The beneficial effects of the utility model are:
The utility model is owing to being provided with gathering sill, outstanding grooving and handle, by regulating the position of bar shaped wiping board to realize contacting and hanging of blackboard eraser and blackboard, when blackboard eraser contacts with blackboard, when moving up and down blackboard, clean off a blackboard fast, erasing blackboard is more convenient, rapid, time saving and energy saving; And health can be away from blackboard eraser during erasing blackboard, dust can not drop on health, cleaner, much cleaner.
Accompanying drawing explanation:
Fig. 1 is the overall structure schematic diagram of blackboard eraser device for sliding blackboard of the present utility model;
Fig. 2 is guiding mechanism of the present utility model and bar shaped wiping board structural representation;
Fig. 3 is bar shaped wiping board of the present utility model installation site schematic diagram;
Fig. 4 is bar shaped wiping board of the present utility model and guide frame matching relationship schematic diagram.
1,2-blackboard; 3,4-bar shaped blackboard eraser 3; 5,6-guiding mechanism; 7,8-handle; 9-hangs grooving; 10-gathering sill; 11-elastic device; 12-bulb; 13-bolt.
The specific embodiment:
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described:
Embodiment 1:
With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, the utility model comprises blackboard 1 and 2 two blackboards of blackboard, and two blackboards can slide up and down; The bar shaped wiping board 3 of blackboard eraser device of the present utility model and bar shaped wiping board 4 are arranged on guiding mechanism 5,6, and guiding mechanism 5,6 is fixed on the wall of blackboard both sides by set bolt 13.Guiding mechanism 5,6 is provided with outstanding grooving 9 and gathering sill 10, the bulb 12 at bar shaped wiping board 3 and 4 two ends can be in gathering sill 10 and the interior slip of outstanding grooving 9, and the change in location of bar shaped wiping board by gathering sill 10 and outstanding grooving 9 realizes and the contacting and hang of blackboard 1 and blackboard 2 surfaces.In gathering sill 10, be provided with elastic device 11, one end of elastic device 11 is fixed on gathering sill 10, and the other end is fixed on the bulb 12 that bar shaped wiping board 3,4 snaps in gathering sill.On bar shaped wiping board 3,4, be respectively equipped with handle 8 and 7, for bulb 12 is drawn in to gathering sill 10 by outstanding grooving 9, or draw in outstanding grooving 9 by gathering sill 10.
Sliding blackboard by the using method of blackboard eraser device is: when not needing with blackboard blackboard eraser erasing blackboard 1, be pulled outwardly handle, be pulled to hang and press, bar shaped wiping board 3 two ends are snapped in simultaneously and hang grooving 9, now, bar shaped wiping board 3 does not contact with blackboard 1; When needs erasing blackboard 1, mention handle, make bar shaped wiping board 3 depart from outstanding grooving 9, snap in gathering sill 10, bar shaped wiping board 3 contacts with 1, blackboard under the pressure-acting of elastic device 11, now, pulls up and down blackboard 1, can erasing blackboard 1 surface.Same principle can utilize the surface of bar shaped wiping board 4 erasing blackboards 2.
Embodiment 2:
On the basis of embodiment 1, can increase in pairs the quantity of bar shaped wiping board and blackboard, parallel installation between blackboard, and also elastic device 11 is not limited to spring, can be shell fragment or tool block rubber springy.
Claims (5)
1. sliding blackboard blackboard eraser device, is comprised of two blackboards that can slide up and down (1) and (2), it is characterized in that: described blackboard eraser device comprises two bar shaped wiping boards (3) and (4), two pairs of guiding mechanisms (5) and (6); Two pairs of guiding mechanisms (5) and (6) parallel opposed, on described guiding mechanism (5) and (6), be respectively equipped with outstanding grooving (9) and gathering sill (10), described two bar shaped wiping boards (3) and (4) are installed in parallel between two pairs of guiding mechanisms (5) and (6), and the bulb (12) at bar shaped wiping board (3) and (4) two ends is arranged on respectively in the gathering sill (10) on two pairs of guiding mechanisms (5) and (6); When the two ends bulb (12) of bar shaped wiping board (3) and (4) is during in gathering sill (10) position, two bar shaped wiping boards (3) and (4) respectively with the Surface Contact of two Sliding blackboards (1) and (2).
2. sliding blackboard according to claim 1 blackboard eraser device, is characterized in that: in the gathering sill (10) of described guiding mechanism (5) and (6), be provided with elastic device (11).
3. sliding blackboard according to claim 2 blackboard eraser device, is characterized in that: the elastic device (11) in described gathering sill (10) is spring.
4. sliding blackboard according to claim 2 blackboard eraser device, is characterized in that: described bulb (12) external diameter is slightly less than outstanding grooving (9) and gathering sill (10) internal diameter.
5. sliding blackboard according to claim 1 blackboard eraser device, is characterized in that: described bar shaped wiping board (3) and (4) are provided with handle (8) and (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262941.8U CN203902076U (en) | 2013-10-11 | 2014-05-20 | Eraser for sliding chalkboard |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607700.8 | 2013-10-11 | ||
| CN201320607700 | 2013-10-11 | ||
| CN201420262941.8U CN203902076U (en) | 2013-10-11 | 2014-05-20 | Eraser for sliding chalkboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902076U true CN203902076U (en) | 2014-10-29 |
Family
ID=51776367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420262941.8U Expired - Fee Related CN203902076U (en) | 2013-10-11 | 2014-05-20 | Eraser for sliding chalkboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973443A (en) * | 2018-08-10 | 2018-12-11 | 张家诚 | A kind of cyclic switching formula blackboard convenient for erasing |
| CN108973444A (en) * | 2018-08-10 | 2018-12-11 | 张家诚 | A kind of reciprocal suitching type is from erasing blackboard |
-
2014
- 2014-05-20 CN CN201420262941.8U patent/CN203902076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973443A (en) * | 2018-08-10 | 2018-12-11 | 张家诚 | A kind of cyclic switching formula blackboard convenient for erasing |
| CN108973444A (en) * | 2018-08-10 | 2018-12-11 | 张家诚 | A kind of reciprocal suitching type is from erasing blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 266580 School of storage and construction, China University of Petroleum, No. 66 West Changjiang Road, Huangdao District, Shandong City, Qingdao province 2012 Patentee after: Liu Wendi Address before: 257017 No. 827, North Road, Shandong, Dongying Patentee before: Liu Wendi |
|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160520 |