CN204870244U - Handly erase two -sided roll formula dust removal blackboard - Google Patents
Handly erase two -sided roll formula dust removal blackboard Download PDFInfo
- Publication number
- CN204870244U CN204870244U CN201520573819.7U CN201520573819U CN204870244U CN 204870244 U CN204870244 U CN 204870244U CN 201520573819 U CN201520573819 U CN 201520573819U CN 204870244 U CN204870244 U CN 204870244U
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- China
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- plate body
- blackboard
- bevel gear
- supporting plate
- link
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Abstract
The utility model provides a handly erase two -sided roll formula dust removal blackboard is including preceding plate body, spout, the blackboard area body, bevel gear, rocking handle, layer board, spacing adjustment mechanism, mount, chalk end collecting vat, back plate body, conveyer belt, telescopic link, brush hair district, link, connecting rod and roll axis. Preceding plate body passes through link and back plate body coupling, and preceding plate body is equipped with the roll axis, is equipped with the blackboard area body on the roll axis, can realize through rotating bevel gear that the rocking handle drove the roll axis below that the blackboard area body rolls and the transmission of back plate body conveyer belt, thereby the writing on the blackboard is wiped in the plate body blackboard area body and the district's contact of back plate body brush hair before can realizing through the spacing adjustment mechanism that preceding plate body below set up. A handly erase two -sided roll formula dust removal blackboard, not only increased the writing on the blackboard area of blackboard, can easily erase the writing on the blackboard part moreover, conveniently collect the chalk end to can use as the projection curtain, save space.
Description
Technical field
The utility model relates to teaching aid, particularly relates to the two-sided roller dust removing blackboard of a kind of hand erasing.
Background technology
Blackboard used in current classroom is comparatively traditional, and there is following problem: first, and the area of blackboard is comparatively fixing, when writing on the blackboard is covered with blackboard, needs interim erasing to continue writing on the blackboard; Secondly, not only efficiency was low for the mode of erasing blackboard in the past, and wasted time and energy; Again, the chalk powder flown away can be affected healthy in the too much suction lung of Faculty and Students, and can cause environmental pollution, is not easy to cleaning; Finally, in the classroom having projector equipment, often projection screen is arranged on above blackboard, can block blackboard when falling, and does not occupy limited space, and is not easy to watch the writing on the blackboard on blackboard.
Utility model content
The purpose of this utility model is, overcome the deficiencies in the prior art part, there is provided a kind of hand erasing two-sided roller dust removing blackboard, structure is simple, easy to operate, not only increases the writing on the blackboard area of blackboard, and can easily wipe writing on the blackboard part, conveniently collect chalk powder, and can use as projection screen, save space.
The two-sided roller dust removing blackboard of the hand erasing of one described in the utility model, includes front plate body, chute, blackboard belt body, bevel gear, rocking handle, supporting plate, distance regulating mechanism, fixed mount, chalk powder feeder, rear plate body, conveyer belt, expansion link, hair brush area, link, connecting rod and the axis of rolling.Front plate body and rear plate body are the main components of the two-sided roller dust removing blackboard of a kind of hand erasing described in the utility model, rear plate body is fixing on the wall, front plate body is connected by link with rear plate body both sides, described link includes two strip bodies of rod, two body of rod intermediate active riveted joints, link is made to be X-shaped, one of them body of rod upper end is connected with the slide arranged in header board body side surface upper end, lower end is flexibly connected with lower end, rear plate body side, another body of rod upper end is connected with the slide arranged in upper end, rear plate body side, lower end is flexibly connected with header board body side surface lower end, described front plate body dual-side is provided with the axis of rolling, described two axis of rolling are wound around and are provided with blackboard belt body, blackboard belt body is made up of softwood matter, described blackboard belt body is provided with and is coated with black area and is coated with white area, be coated with black area and be used for writing words, be coated with white area and be used as projection screen and use, bevel gear is fixedly installed wherein bottom an axis of rolling, before below the axis of rolling arranging bevel gear, plate body is interspersed is provided with expansion link, expansion link front end is provided with rocking handle, rear end forward plate body rear extends, the expansion link at rocking handle rear is fixedly installed bevel gear equally, the bevel gear on expansion link engages with bevel gear bottom the axis of rolling, the axis of rolling can be driven to rotate by rotation crank, thus drives blackboard belt body to roll, bottom front plate body, two ends are respectively arranged with a supporting plate, described supporting plate lower surface is provided with tooth bar, with the supporting plate of bevel gear homonymy below be provided with distance regulating mechanism, described distance regulating mechanism includes driving gear, stator, crank and fixed bar, distance regulating mechanism is fixed on below supporting plate by the fixed mount being arranged on lower end, rear plate body front, fixed mount side is fixedly connected with and is provided with stator, stator is provided with jack, crank axis is interspersed in fixed mount and stator, be rotationally connected with fixed mount and stator, crank axis end is fixedly connected with and is provided with driving gear, driving gear engages with supporting plate tooth bar, the crank arm of force interts and is provided with fixed bar, described fixed bar can be inserted in the jack on stator, thus can fixed crank, below opposite side supporting plate, be provided with the driven gear engaged with supporting plate tooth bar, driven gear is fixed on below supporting plate by the fixed mount being arranged on lower end, rear plate body front, and driving gear is connected by connecting rod with driven gear, in the position that rear plate body front is corresponding with the blackboard belt body on front plate body, be provided with hair brush area, in hair brush area, be provided with bristle, can be used for the word of writing on the blackboard on erasing blackboard belt body, in hair brush area, lower horizontal is provided with conveyer belt, can be used to the chalk powder transporting erasing, the rotating mechanism of conveyer belt extends the expansion link end of coming with the past plate body and is fixedly connected with, conveyer belt is driven together by rotation crank, described conveyer belt outer ledge is set side by side with square catch, can prevent chalk powder to drop out conveyer belt, below conveyer belt two ends, be respectively arranged with a chalk powder feeder, can be used to collect the chalk powder transmitted.When removing writing on the blackboard, make front plate body near rear plate body by spacing adjustment structure, make blackboard belt body contact brush hair-fields, then by rotation crank, blackboard belt body is moved relative to hair brush area, i.e. erasable writing on the blackboard, the chalk powder fallen can be sent in chalk powder feeder by conveyer belt.
The two-sided roller dust removing blackboard of the hand erasing of one described in the utility model, overall structure is simple, easy for operation, good stability, reliability is high, use the two-sided roller dust removing blackboard of the hand erasing of one described in the utility model, not only increase the writing on the blackboard area of blackboard, and can easily wipe writing on the blackboard part, conveniently collect chalk powder, and projection screen can be used as use, save space.
Accompanying drawing explanation
Accompanying drawing 1 is the side structure schematic diagram of the two-sided roller dust removing blackboard of a kind of hand erasing described in the utility model.Accompanying drawing 2 is front plate body structure schematic diagrames.Accompanying drawing 3 is rear plate body structural representations.Accompanying drawing 4 is conveyer belt partial enlargement structural representations.Accompanying drawing 5 is distance regulating mechanism structural representations.Accompanying drawing 6 is stator structural representations.
Body 2-chute 3-blackboard belt body 4-bevel gear 5-rocking handle 6-supporting plate 7-driving gear 8-fixed mount 9-chalk powder feeder 10-rear plate body 11-conveyer belt 12-expansion link 13-hair brush area 14-link 15-connecting rod 16-driven gear 17-axis of rolling 18-square catch 19-stator 20-crank 21-fixed bar 22-jack before 1-.
Detailed description of the invention
Referring now to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6, be described as follows: the two-sided roller dust removing blackboard of the hand erasing of one described in the utility model, includes front plate body 1, chute 2, blackboard belt body 3, bevel gear 4, rocking handle 5, supporting plate 6, distance regulating mechanism, fixed mount 8, chalk powder feeder 9, rear plate body 10, conveyer belt 11, expansion link 12, hair brush area 13, link 14, connecting rod 15 and the axis of rolling 17 in conjunction with the embodiments.Front plate body 1 and rear plate body 10 are main components of the two-sided roller dust removing blackboard of a kind of hand erasing described in the utility model, rear plate body 10 is fixing on the wall, front plate body 1 is connected by link 14 with rear plate body 10 both sides, described link 14 includes two strip bodies of rod, two body of rod intermediate active riveted joints, make link 14 in X-shaped, one of them body of rod upper end is slidably connected with the chute 2 arranged in upper end, front plate body 1 side, lower end is flexibly connected with lower end, rear plate body 10 side, another body of rod upper end is slidably connected with the chute 2 arranged in upper end, rear plate body 10 side, lower end is flexibly connected with lower end, front plate body 1 side, described front plate body 1 dual-side is provided with the axis of rolling 16, described two axis of rolling 16 are wound around and are provided with blackboard belt body 3, blackboard belt body 3 is made up of softwood matter, described blackboard belt body 3 is provided with and is coated with black area and is coated with white area, be coated with black area and be used for writing words, be coated with white area and be used as projection screen and use, bevel gear 4 is fixedly installed wherein bottom an axis of rolling 16, before below the axis of rolling 16 arranging bevel gear 4, plate body 1 is interspersed is provided with expansion link 12, expansion link 12 front end is provided with rocking handle 5, rear end forward plate body 1 rear extends, the expansion link 12 at rocking handle 5 rear is fixedly installed bevel gear 4 equally, the bevel gear 4 on expansion link 12 engages with bevel gear 4 bottom the axis of rolling 16, the axis of rolling 16 can be driven to rotate by rotation crank 5, thus drives blackboard belt body 3 to roll, bottom front plate body 1, two ends are respectively arranged with a supporting plate 6, described supporting plate 6 lower surface is provided with tooth bar, with the supporting plate 6 of bevel gear 4 homonymy below be provided with distance regulating mechanism, described distance regulating mechanism includes driving gear 7, stator 19, crank 20 and fixed bar 21, distance regulating mechanism is fixed on below supporting plate 6 by the fixed mount 8 being arranged on lower end, rear plate body 10 front, fixed mount 8 side is fixedly connected with and is provided with stator 19, stator 19 is provided with jack 22, crank 20 axis is interspersed in fixed mount 8 and stator 19, be rotationally connected with fixed mount 8 and stator 19, in crank 20, shaft end is fixedly connected with and is provided with driving gear 7, driving gear 7 engages with supporting plate 6 tooth bar, crank 20 arm of force interts and is provided with fixed bar 21, described fixed bar 21 can be inserted in the jack 22 on stator 19, thus can fixed crank 20, below opposite side supporting plate 6, be provided with the driven gear 16 engaged with supporting plate 6 tooth bar, driven gear is fixed on below supporting plate 6 by the fixed mount 8 being arranged on lower end, rear plate body 10 front, and driving gear 7 is connected by connecting rod 15 with driven gear, in the position that rear plate body 10 front is corresponding with the blackboard belt body 3 on front plate body 1, be provided with hair brush area 13, in hair brush area 13, be provided with bristle, can be used for the word of writing on the blackboard on erasing blackboard belt body 3, in hair brush area 13, lower horizontal is provided with conveyer belt 11, can be used to the chalk powder transporting erasing, the rotating mechanism of conveyer belt 11 extends expansion link 12 end of coming with the past plate body 1 and is fixedly connected with, conveyer belt 11 is driven to move together by rotation crank 5, described conveyer belt 11 outer ledge is set side by side with square catch 18, can prevent chalk powder to drop out conveyer belt 11, below conveyer belt 11 two ends, be respectively arranged with a chalk powder feeder 9, can be used to collect the chalk powder transmitted.When removing writing on the blackboard, make front plate body 1 near rear plate body 10 by spacing adjustment structure, make blackboard belt body 3 contact brush hair-fields 13, then by rotation crank 5, blackboard belt body 3 is moved relative to hair brush area 13, i.e. erasable writing on the blackboard, the chalk powder fallen can be sent in chalk powder feeder 9 by conveyer belt 11.The two-sided roller dust removing blackboard of the hand erasing of one described in the utility model, overall structure is simple, easy for operation, good stability, reliability is high, use the two-sided roller dust removing blackboard of the hand erasing of one described in the utility model, not only increase the writing on the blackboard area of blackboard, and can easily wipe writing on the blackboard part, conveniently collect chalk powder, and projection screen can be used as use, save space.
Claims (2)
1. the two-sided roller dust removing blackboard of hand erasing, includes front plate body (1), chute (2), blackboard belt body (3), bevel gear (4), rocking handle (5), supporting plate (6), distance regulating mechanism, fixed mount (8), chalk powder feeder (9), rear plate body (10), conveyer belt (11), expansion link (12), hair brush area (13), link (14), connecting rod (15) and the axis of rolling (17), it is characterized in that, front plate body (1) and rear plate body (10) are main components, rear plate body (10) is fixing on the wall, front plate body (1) is connected by link (14) with rear plate body (10) both sides, link (14) includes two strip bodies of rod, two body of rod intermediate active riveted joints, make link (14) in X-shaped, one of them body of rod upper end is slidably connected with the chute (2) arranged in front plate body (1) upper end, side, lower end is flexibly connected with rear plate body (10) lower end, side, another body of rod upper end is slidably connected with the chute (2) arranged in rear plate body (10) upper end, side, and lower end is flexibly connected with front plate body (1) lower end, side, front plate body (1) dual-side is provided with the axis of rolling (17), and two upper windings of the axis of rolling (17) are provided with blackboard belt body (3), and blackboard belt body (3) is made up of softwood matter, blackboard belt body (3) is provided with and is coated with black area and is coated with white area, the axis of rolling (17) bottom is fixedly installed bevel gear (4) wherein, before the axis of rolling (17) below arranging bevel gear (4), plate body (1) is interspersed is provided with expansion link (12), expansion link (12) front end is provided with rocking handle (5), rear end forward plate body (1) rear extends, the expansion link (12) at rocking handle (5) rear is fixedly installed bevel gear (4) equally, and the bevel gear (4) on expansion link (12) engages with the axis of rolling (17) bottom bevel gear (4), a supporting plate (6) is respectively arranged with at two ends, front plate body (1) bottom, supporting plate (6) lower surface is provided with tooth bar, supporting plate (6) below with bevel gear (4) homonymy is provided with distance regulating mechanism, distance regulating mechanism includes driving gear (7), stator (19), crank (20) and fixed bar (21), distance regulating mechanism is fixed on supporting plate (6) below by the fixed mount (8) being arranged on rear plate body (10) lower end, front, fixed mount (8) side is fixedly connected with and is provided with stator (19), stator (19) is provided with jack (22), crank (20) axis is interspersed in fixed mount (8) and stator (19), be rotationally connected with fixed mount (8) and stator (19), in crank (20), shaft end is fixedly connected with and is provided with driving gear (7), driving gear (7) engages with supporting plate (6) tooth bar, crank (20) arm of force interts and is provided with fixed bar (21), fixed bar (21) can be inserted in the jack (22) on stator (19), opposite side supporting plate (6) below is provided with the driven gear (16) engaged with supporting plate (6) tooth bar, driven gear (16) is fixed on supporting plate (6) below by the fixed mount (8) being arranged on rear plate body (10) lower end, front, and driving gear (7) is connected by connecting rod (15) with driven gear (16), in the position that rear plate body (10) front is corresponding with the blackboard belt body (3) on front plate body (1), be provided with hair brush area (13), hair brush area is provided with bristle in (13), hair brush area (13) lower horizontal is provided with conveyer belt (11), rotating mechanism and the past plate body (1) of conveyer belt (11) extend expansion link (12) end of coming and are fixedly connected with, and are respectively arranged with a chalk powder feeder (9) below conveyer belt (11) two ends.
2. the two-sided roller dust removing blackboard of the hand erasing of one according to claim 1, is characterized in that, conveyer belt (11) outer ledge is set side by side with square catch (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520573819.7U CN204870244U (en) | 2015-08-03 | 2015-08-03 | Handly erase two -sided roll formula dust removal blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520573819.7U CN204870244U (en) | 2015-08-03 | 2015-08-03 | Handly erase two -sided roll formula dust removal blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204870244U true CN204870244U (en) | 2015-12-16 |
Family
ID=54814663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520573819.7U Expired - Fee Related CN204870244U (en) | 2015-08-03 | 2015-08-03 | Handly erase two -sided roll formula dust removal blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204870244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774601A (en) * | 2017-12-01 | 2018-03-09 | 滁州学院 | A kind of blackboard eraser dust-free clean device |
-
2015
- 2015-08-03 CN CN201520573819.7U patent/CN204870244U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774601A (en) * | 2017-12-01 | 2018-03-09 | 滁州学院 | A kind of blackboard eraser dust-free clean device |
| CN107774601B (en) * | 2017-12-01 | 2023-12-15 | 滁州学院 | Dust-free cleaning device for blackboard eraser |
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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: 20151216 Termination date: 20160803 |