CN204020313U - A kind of rainproof blackboard - Google Patents
A kind of rainproof blackboard Download PDFInfo
- Publication number
- CN204020313U CN204020313U CN201420243411.9U CN201420243411U CN204020313U CN 204020313 U CN204020313 U CN 204020313U CN 201420243411 U CN201420243411 U CN 201420243411U CN 204020313 U CN204020313 U CN 204020313U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- reel
- soft glass
- rainproof
- fixed bar
- 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
A kind of rainproof blackboard, realizes the rainproof function of blackboard newspaper by installing 4 staples, 1 reel and 1 fixed bar at the blackboard back side; Reel is fixed by support, inner installation rotating shaft, outside slotting in middle, and for turnover and the folding and unfolding of soft glass, right-hand member installs the collapsible crank that it can be made to rotate; Linked together by above-mentioned soft glass between reel and fixed bar, on fixed bar, mounting strap regulates the elastic cord of buttonhole, for fixing soft glass.
Description
Technical field
The present utility model relates to education equipment, exactly relates to the innovative design of blackboard in traditional education equipment, belongs to field of Educational Technology.
Background technology
Blackboard newspaper as the reusable communication and education equipment of a kind of low cost, by army, universities and colleges are widely used.Blackboard adds chalk more just can create colourful blackboard newspaper, plays the effect of publicity of anticipation; If but blackboard newspaper meet the rainy day do not regain in time, will by rain drop erosion ground changed beyond recognition, make people have to re-create.Rainproof facility can be increased on the basis of traditional blackboard, no matter can fine day or rainy day normally be put on display to make blackboard newspaper? the present utility model is exactly by installing transparent soft glass in traditional blackboard additional, thus realizes above-mentioned functions.
Utility model content
The utility model is selected through the pure transparent PVC soft board of the nontoxic process of SP level, i.e. soft glass, as the rainproof material covering the blackboard back side.This soft glass possesses high temperature resistant, anti-aging, indeformable, antistatic, waterproof, anticorrosion, dust-proof, easy cleaning, easily paves, feature that self-cleaning is good.
At two ends, blackboard upper rear portion left and right, 2 staples and fixed mount are installed; 2 staples are installed in bottom; Fixed mount installs reel; Rotating shaft is installed, outside slotting in middle in reel inside, and for turnover and the folding and unfolding of soft glass, right-hand member installs the collapsible crank that it can be made to rotate; Linked together by above-mentioned soft glass between reel and fixed bar, on fixed bar, mounting strap regulates the elastic cord of buttonhole.
Before writing blackboard newspaper, fixing elastic cord being pulled out from lower end staple, by being rotated counterclockwise crank, soft glass being taken in reel; After finishing writing blackboard newspaper, can hold for rainproof, soft glass pull-out is covered blackboard front, elastic cord is buckled on the staple of lower end fixing.Thus make blackboard newspaper neither affect people's viewing, rain function.
Accompanying drawing explanation
Fig. 1 is structure figure: 1-reel of rainproof blackboard; 2-fixed bar; 3-elastic cord; 4-support; 5-upper end staple; 6-lower end staple; 7-crank.
Detailed description of the invention
Respectively install 2 staples 5 and 6 in top and bottom, the traditional blackboard back side, install on 2 roller stands 4 and install reel 1, have a thin cylindric rotating shaft in the middle of reel, right-hand member installs folding crank 7, and the swing of folding crank 7 can with the rotating shaft synchronous axial system in movable reel; The vertical masonry joint that a transverse direction runs through 2 centimetres wide of reel is opened in the middle of reel; The soft glass of 1.5 cm thicks, by the steel shafts of reel 1 inside and fixed bar 2 being linked together after seam, exceeds each 10 centimetres of blackboard about soft glass width; The each elastic cord 3 fixing 1 15 centimeter length band buttonhole of distance fixed bar 2 two ends 5 centimeters.
Before writing blackboard newspaper, elastic cord 32 staples 6 from about lower end of band buttonhole are taken off, rotates counterclockwise folding crank 7, soft glass is received in reel 1, the buttonhole of 2 elastic cords to be buckled in about upper end in 2 staples 5, after this can write creation at the blackboard back side.
Deng blackboard newspaper complete after or rain before, elastic cord 3 from about blackboard upper rear portion, 2 staples 5 is taken off, by pulling fixed bar 2, soft glass is upwards pulled out from reel 1, before backward, blackboard is striden across from blackboard top, stretch downwards again, cover blackboard front, again stride across blackboard from blackboard base by after forward direction, upwards stretch a bit of, elastic cord 3 to be inserted in about blackboard lower backside on 2 staples 6.Thus achieve the fixing of soft glass and soft glass to the covering in blackboard front.
Because soft glass has covered blackboard front completely, thus blackboard newspaper is possessed good water proofing property; Due to the transparency of soft glass superelevation, make blackboard newspaper while being provided with good water proofing property, also possess the possibility of rainy day reading.Because this money soft glass possesses good spread volume performance, make the folding and unfolding of the utility model soft glass more free and relaxed.
The utility model structure is simple, and material is easy to get and environmental protection, no matter fine day rainy day after blackboard installs additional, no matter indoor and outdoor, not by weather effect, does not affect people's viewing, makes blackboard newspaper the effect of publicity considerably beyond expection.
Claims (3)
1. a rainproof blackboard, comprise reel (1) and fixed bar (2) composition, it is characterized in that: described reel (1) is supported on the blackboard back side by 2 supports (4), and 2 staples are respectively installed in top and bottom, the blackboard back side, be respectively upper end staple (5) and lower end staple (6).
2. rainproof blackboard according to claim 1, is characterized in that: steel shafts is installed in described reel (1) inside, and open the vertical masonry joint that runs through 2 centimetres wide of reel (1) in the middle of outside, right-hand member installs the collapsible crank (7) that it can be made to rotate.
3. rainproof blackboard according to claim 1, is characterized in that: described fixed bar (2) is installed on soft glass bottom, is connected by soft glass with between reel (1), and the upper mounting strap of fixed bar (2) regulates the elastic cord (3) of buttonhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243411.9U CN204020313U (en) | 2014-05-09 | 2014-05-09 | A kind of rainproof blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243411.9U CN204020313U (en) | 2014-05-09 | 2014-05-09 | A kind of rainproof blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204020313U true CN204020313U (en) | 2014-12-17 |
Family
ID=52060219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243411.9U Expired - Fee Related CN204020313U (en) | 2014-05-09 | 2014-05-09 | A kind of rainproof blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204020313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034650A (en) * | 2015-08-06 | 2015-11-11 | 成都迅德科技有限公司 | Outdoor teaching device |
-
2014
- 2014-05-09 CN CN201420243411.9U patent/CN204020313U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034650A (en) * | 2015-08-06 | 2015-11-11 | 成都迅德科技有限公司 | Outdoor teaching device |
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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: 20141217 Termination date: 20150509 |
|
| EXPY | Termination of patent right or utility model |