CN204955840U - Teaching blackboard - Google Patents
Teaching blackboard Download PDFInfo
- Publication number
- CN204955840U CN204955840U CN201520718733.9U CN201520718733U CN204955840U CN 204955840 U CN204955840 U CN 204955840U CN 201520718733 U CN201520718733 U CN 201520718733U CN 204955840 U CN204955840 U CN 204955840U
- Authority
- CN
- China
- Prior art keywords
- clipboard
- vertical shift
- writing device
- guide rail
- slide block
- 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 teaching blackboard, by the frame, the device is write on a left side, the device is write on the right side and projection arrangement constitutes, the frame is by the crossbeam, the bolt seat, frame and curb plate are constituteed, the device is write by upper left clipboard in a left side, a left side is the clipboard down, left side rack, a left side is indulged the telephone -moving and is constructed, left side link, left side gear and left connecting rod are constituteed, the device is write by upper right clipboard in the right side, the right side is the clipboard down, right side rack, the right side is indulged the telephone -moving and is constructed, right side link, right side gear, right connecting rod and sideslip mechanism group become, projection arrangement is by the projection board, fixing base and vaulting pole are constituteed. The utility model discloses can write the writing on the blackboard, can serve as the effect of projecting apparatus curtain again, the face problem that can not write the eminence because of the limitation of height has effectively been solved to the clipboard that can move about from top to bottom, has simplified teaching facilities, and more teaching work provides convenience. Furthermore, the utility model discloses still has simple structure, job stabilization advantage such as reliable, with low costs.
Description
Technical field
The utility model belongs to teaching equipment technical field, is specifically related to a kind of novel writing and the blackboard for education combined that projects.
Background technology
The teaching facilities in current classroom mainly contain blackboard and projecting apparatus, and the two is separated from each other, independent use, and blackboard can only be the effect of writing writing on the blackboard, and blackboard is fixed, and the plate face of eminence cannot be write, and decreases and effectively writes scope; Moreover when projecting apparatus uses, the curtain of suspension has blocked the plate face of blackboard significantly, and these all bring inconvenience to teaching.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of blackboard for education, can write writing on the blackboard, can serve as again the effect of projector curtain, simplify teaching facilities, and more teaching is provided convenience.
Technical problem to be solved in the utility model realizes by the following technical solutions.
A kind of blackboard for education is made up of framework, left writing device, right writing device and projection arrangement.Described framework is made up of crossbeam, bolt block, frame and side plate, described crossbeam has two, be placed in the top and bottom of framework respectively, be connected by side plate, and crossbeam is provided with groove, described bolt block has four, be connected with the side of two crossbeams respectively, described frame has four, is installed on the both sides of left writing device and right writing device respectively, crossbeam plays a supportive role, and bolt block is fixing for hanging.Described left writing device and right writing device are placed between two crossbeams, and both sides are placed in the groove of two crossbeams up and down.Described projection arrangement is made up of projection plate, holder and strut, and described projection arrangement is placed between side plate and right writing device, and described strut and crossbeam are connected, and are connected by holder with projection plate.
Described left writing device is by upper left clipboard, lower-left clipboard, left tooth bar, left vertical shift mechanism, left link, left gear and left connecting rod composition, described upper left clipboard is placed in the top of left writing device, described lower-left clipboard is placed in the below of left writing device, described left tooth bar has two, same while be connected respectively with upper left clipboard and lower-left clipboard, described left vertical shift mechanism comprises left vertical shift slide block and left vertical shift guide rail, described left vertical shift slide block has eight, wherein four are connected with the two sides of lower-left clipboard, another four are connected with the reverse side of upper left clipboard, described left vertical shift guide rail has four, vertical shift slide block left with two is connected by moving sets respectively, described left link has four, the two ends of vertical shift guide rail left with two are connected respectively, described left link and crossbeam are connected, described left gear is placed between two left tooth bars, and engage with two left tooth bars, described left gear is connected by left connecting rod with left link, when acting on lower-left clipboard, lower-left clipboard is moved upward along left vertical shift guide rail, clipboard left tooth bar on one side in lower-left acts on left gear, left gear is rotated, left gear drives upper left clipboard with the left tooth bar on limit, upper left clipboard is moved downward along left vertical shift guide rail, left vertical shift guide rail plays support and guide effect, otherwise when acting on upper left clipboard, make it move downward, in like manner lower-left clipboard also can move upward.Described right writing device is by upper right clipboard, bottom right clipboard, right tooth bar, right vertical shift mechanism, right link, right gear, right connecting rod and transverse-moving mechanism composition, described upper right clipboard is placed in the top of right writing device, described bottom right clipboard is placed in the below of right writing device, described right tooth bar has two, same while be connected respectively with upper right clipboard and bottom right clipboard, described right vertical shift mechanism comprises right vertical shift slide block and right vertical shift guide rail, described right vertical shift slide block has eight, wherein four are connected with the two sides of upper right clipboard, another four are connected with the reverse side of bottom right clipboard, described right vertical shift guide rail has four, vertical shift slide block right with two is connected by moving sets respectively, described right link has four, the two ends of vertical shift guide rail right with two are connected respectively, described right gear is placed between two right tooth bars, and engage with two right tooth bars, described right gear is connected by right connecting rod with right link, described transverse-moving mechanism comprises traversing slide block and traversing guide rail, described traversing slide block has four, be connected with four right links respectively, described traversing guide rail has two, be connected by moving sets with two traversing slide blocks respectively, and be connected with crossbeam two ends, the vertical shift principle of upper right clipboard and bottom right clipboard and upper left clipboard and lower-left clipboard identical, when acting on right writing device, right writing device is made to move to left writing device one side along traversing guide rail, just displayed by the projection plate that right writing device blocks, traversing guide rail plays support and guide effect.
During use, blackboard bolt is fixed on wall by bolt block; When the plate face of eminence cannot be write, can by hand by upper left clipboard toward drop-down or lower-left clipboard is up carried, make both exchange up and down, upper right clipboard and bottom right clipboard also can be made to exchange up and down; When needs use projecting apparatus, right writing device can be pulled to left writing device one side by hand, originally being displayed by the projection plate that right writing device blocks can for projector.
The beneficial effects of the utility model are, compared with prior art, and up and down by clipboard of the utility model, efficiently solve the plate face problem can not writing eminence because of the limitation of height, and the curtain that can make projecting apparatus uses, and simplifies teaching facilities, facilitates teaching.In addition, the utility model also has that structure is simple, working stability is reliable, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is left writing device of the present utility model and right writing device structural representation when using;
Fig. 3 is the Facad structure schematic diagram of left writing device of the present utility model;
Fig. 4 is the inverse layer structure schematic diagram of left writing device of the present utility model;
Fig. 5 is right writing device of the present utility model and projection arrangement structural representation when using;
Fig. 6 is the inverse layer structure schematic diagram of projection arrangement of the present utility model;
Fig. 7 is crossbeam of the present utility model and side plate assembly relation structural representation;
Fig. 8 is crossbeam of the present utility model and bolt block assembly relation structural representation;
Fig. 9 is border structure schematic diagram of the present utility model.
In figure: 1. framework; 2. left writing device; 3. right writing device; 4. projection arrangement; 11. crossbeams; 12. bolt blocks; 13. frames; 14. side plates; 21. upper left clipboards; 22. lower-left clipboards; 23. left tooth bars; 24. left vertical shift mechanisms; 25. left links; 26. left gears; 27. left connecting rods; 31. upper right clipboards; 32. bottom right clipboards; 33. right tooth bars; 34. right vertical shift mechanisms; 35. right links; 36. right gears; 37. right connecting rods; 38. transverse-moving mechanisms; 41. projection plates; 42. holders; 43. struts; 241. left vertical shift slide blocks; 242. left vertical shift guide rails; 341. right vertical shift slide blocks; 342. right vertical shift guide rails; 381. traversing slide blocks; 382. traversing guide rails.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment and diagram, setting forth the utility model further.
As shown in Fig. 1, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, a kind of blackboard for education is made up of framework 1, left writing device 2, right writing device 3 and projection arrangement 4.Described framework 1 is made up of crossbeam 11, bolt block 12, frame 13 and side plate 14, described crossbeam 11 has two, be placed in the top and bottom of framework 1 respectively, be connected by side plate 14, and crossbeam 11 is provided with groove, described bolt block 12 has four, be connected with the side of two crossbeams 11 respectively, described frame 13 has four, is installed on the both sides of left writing device 2 and right writing device 3 respectively, crossbeam 11 plays a supportive role, and bolt block 12 is fixing for hanging.Described left writing device 2 and right writing device 3 are placed between two crossbeams 11, and both sides are placed in the groove of two crossbeams 11 up and down.Described projection arrangement 4 is made up of projection plate 41, holder 42 and strut 43, and described projection arrangement 4 is placed between side plate 14 and right writing device 3, and described strut 43 is connected with crossbeam 11, and is connected by holder 42 with projection plate 41.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, described left writing device 2 is by upper left clipboard 21, lower-left clipboard 22, left tooth bar 23, left vertical shift mechanism 24, left link 25, left gear 26 and left connecting rod 27 form, described upper left clipboard 21 is placed in the top of left writing device 2, described lower-left clipboard 22 is placed in the below of left writing device 2, described left tooth bar 23 has two, same while be connected respectively with upper left clipboard 21 and lower-left clipboard 22, described left vertical shift mechanism 24 comprises left vertical shift slide block 241 and left vertical shift guide rail 242, described left vertical shift slide block 241 has eight, wherein four are connected with the two sides of lower-left clipboard 22, another four are connected with the reverse side of upper left clipboard 21, described left vertical shift guide rail 242 has four, vertical shift slide block 241 left with two is connected by moving sets respectively, described left link 25 has four, the two ends of vertical shift guide rail 242 left with two are connected respectively, described left link 25 is connected with crossbeam 11, described left gear 26 is placed between two left tooth bars 23, and engage with two left tooth bars 23, described left gear 26 is connected by left connecting rod 27 with left link 25, when acting on lower-left clipboard 22, lower-left clipboard 22 is moved upward along left vertical shift guide rail 242, lower-left clipboard 22 left tooth bar 23 on one side acts on left gear 26, left gear 26 is rotated, left gear 26 drives upper left clipboard 21 with the left tooth bar 23 on limit, upper left clipboard 21 is moved downward along left vertical shift guide rail 242, 242, left vertical shift guide rail supports and guide effect, otherwise when acting on upper left clipboard 21, make it move downward, in like manner lower-left clipboard 22 also can move upward.Described right writing device 3 is by upper right clipboard 31, bottom right clipboard 32, right tooth bar 33, right vertical shift mechanism 34, right link 35, right gear 36, right connecting rod 37 and transverse-moving mechanism 38 form, described upper right clipboard 31 is placed in the top of right writing device 3, described bottom right clipboard 32 is placed in the below of right writing device 3, described right tooth bar 33 has two, same while be connected respectively with upper right clipboard 31 and bottom right clipboard 32, described right vertical shift mechanism 34 comprises right vertical shift slide block 341 and right vertical shift guide rail 342, described right vertical shift slide block 341 has eight, wherein four are connected with the two sides of upper right clipboard 31, another four are connected with the reverse side of bottom right clipboard 32, described right vertical shift guide rail 342 has four, vertical shift slide block 341 right with two is connected by moving sets respectively, described right link 35 has four, the two ends of vertical shift guide rail 342 right with two are connected respectively, described right gear 36 is placed between two right tooth bars 33, and engage with two right tooth bars 33, described right gear 36 is connected by right connecting rod 37 with right link 35, described transverse-moving mechanism 38 comprises traversing slide block 381 and traversing guide rail 382, described traversing slide block 381 has four, link 35 right with four is connected respectively, described traversing guide rail 382 has two, slide block 381 traversing with two is connected by moving sets respectively, and be connected with crossbeam 11 two ends, the vertical shift principle of upper right clipboard 31 and bottom right clipboard 32 and upper left clipboard 21 are identical with lower-left clipboard 22, when acting on right writing device 3, right writing device 3 is made to move to left writing device 2 one side along traversing guide rail 382, just displayed by the projection plate 41 that right writing device 3 blocks, 382, traversing guide rail supports and guide effect.
During use, blackboard bolt is fixed on wall by bolt block 12; When the plate face of eminence cannot be write, can by hand by upper left clipboard 21 toward drop-down or lower-left clipboard 22 is up carried, make both exchange up and down, upper right clipboard 31 and bottom right clipboard about 32 also can be made to exchange; When needs use projecting apparatus, by hand right writing device 3 can be pulled to left writing device 2 one side, originally being displayed by the projection plate 41 that right writing device 3 blocks can for projector.
More than show and describe general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a blackboard for education, is characterized in that: be made up of framework, left writing device, right writing device and projection arrangement; Described framework is made up of crossbeam, bolt block, frame and side plate, described crossbeam has two, be placed in the top and bottom of framework respectively, be connected by side plate, and crossbeam is provided with groove, described bolt block has four, is connected respectively with the side of two crossbeams, described frame has four, is installed on the both sides of left writing device and right writing device respectively; Described left writing device and right writing device are placed between two crossbeams, and both sides are placed in the groove of two crossbeams up and down; Described projection arrangement is made up of projection plate, holder and strut, and described projection arrangement is placed between side plate and right writing device, and described strut and crossbeam are connected, and are connected by holder with projection plate.
2. a kind of blackboard for education according to claim 1, it is characterized in that: described left writing device is by upper left clipboard, lower-left clipboard, left tooth bar, left vertical shift mechanism, left link, left gear and left connecting rod composition, described upper left clipboard is placed in the top of left writing device, described lower-left clipboard is placed in the below of left writing device, described left tooth bar has two, same while be connected respectively with upper left clipboard and lower-left clipboard, described left vertical shift mechanism comprises left vertical shift slide block and left vertical shift guide rail, described left vertical shift slide block has eight, wherein four are connected with the two sides of lower-left clipboard, another four are connected with the reverse side of upper left clipboard, described left vertical shift guide rail has four, vertical shift slide block left with two is connected by moving sets respectively, described left link has four, the two ends of vertical shift guide rail left with two are connected respectively, described left link and crossbeam are connected, described left gear is placed between two left tooth bars, and engage with two left tooth bars, described left gear is connected by left connecting rod with left link, described right writing device is by upper right clipboard, bottom right clipboard, right tooth bar, right vertical shift mechanism, right link, right gear, right connecting rod and transverse-moving mechanism composition, described upper right clipboard is placed in the top of right writing device, described bottom right clipboard is placed in the below of right writing device, described right tooth bar has two, same while be connected respectively with upper right clipboard and bottom right clipboard, described right vertical shift mechanism comprises right vertical shift slide block and right vertical shift guide rail, described right vertical shift slide block has eight, wherein four are connected with the two sides of upper right clipboard, another four are connected with the reverse side of bottom right clipboard, described right vertical shift guide rail has four, vertical shift slide block right with two is connected by moving sets respectively, described right link has four, the two ends of vertical shift guide rail right with two are connected respectively, described right gear is placed between two right tooth bars, and engage with two right tooth bars, described right gear is connected by right connecting rod with right link, described transverse-moving mechanism comprises traversing slide block and traversing guide rail, described traversing slide block has four, be connected with four right links respectively, described traversing guide rail has two, be connected by moving sets with two traversing slide blocks respectively, and be connected with crossbeam two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520718733.9U CN204955840U (en) | 2015-09-14 | 2015-09-14 | Teaching blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520718733.9U CN204955840U (en) | 2015-09-14 | 2015-09-14 | Teaching blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204955840U true CN204955840U (en) | 2016-01-13 |
Family
ID=55050928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520718733.9U Expired - Fee Related CN204955840U (en) | 2015-09-14 | 2015-09-14 | Teaching blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204955840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036329A (en) * | 2018-08-08 | 2018-12-18 | 王建国 | A kind of new-type concealed blackboard of teaching lifting and projector integrated device |
-
2015
- 2015-09-14 CN CN201520718733.9U patent/CN204955840U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036329A (en) * | 2018-08-08 | 2018-12-18 | 王建国 | A kind of new-type concealed blackboard of teaching lifting and projector integrated 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160914 |