CN105882244A - Reflection preventing blackboard - Google Patents
Reflection preventing blackboard Download PDFInfo
- Publication number
- CN105882244A CN105882244A CN201610229075.6A CN201610229075A CN105882244A CN 105882244 A CN105882244 A CN 105882244A CN 201610229075 A CN201610229075 A CN 201610229075A CN 105882244 A CN105882244 A CN 105882244A
- Authority
- CN
- China
- Prior art keywords
- frame
- support bar
- blackboard
- blackboard body
- tumbler
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a reflection preventing blackboard. The reflection preventing blackboard comprises a frame, a first supporting rod, a second supporting rod, a third supporting rod, a first blackboard body, a second blackboard body, a third blackboard body and a driving mechanism, wherein the frame comprises a first border, a second border, a third border and a fourth border; the first border, the second border, the third border and the fourth border are arranged successively; the first border is opposite to the third border; the first border and the third border are arranged vertically; the second border is opposite to the fourth border and is placed above the fourth border; and the second border and the fourth border are arranged horizontally. The distance between the first blackboard body and a vertical plane and the distance between the third blackboard body and the vertical plane can be adjusted effectively, students at different positions can observe well, adaptability is good, influence caused by reflection is avoided, and therefore, teaching is facilitated.
Description
Technical field
The present invention relates to realia technical field, particularly relate to a kind of avoid reflective blackboard.
Background technology
Blackboard is the instrument that has to use for during we impart knowledge to students, but the blackboard under current technology exists following defect,
Such as, due to classroom, middle school student are more, when being sitting in the observation of students blackboard at edge, because reflective reason is made
Become to observe unclear, cause teaching constant, also affect study, need further to be improved.
Summary of the invention
In order to solve technical problem present in background technology, the present invention proposes and a kind of avoids reflective blackboard,
It is easy to teaching.
A kind of avoid reflective blackboard, including framework, the first support bar, the second support bar, the 3rd support bar,
First blackboard body, the second blackboard body, the 3rd blackboard body, drive mechanism；
Framework includes the first frame, the second frame, the 3rd frame, the 4th frame, the first frame, the second limit
Frame, the 3rd frame, the 4th frame are sequentially arranged, and the first frame and the 3rd frame are positioned opposite, the first frame
The most vertically arrange with the 3rd frame；Second frame and the 4th frame are positioned opposite, and the second frame is placed in the 4th limit
The top of frame, the second frame and the 4th frame are the most horizontally disposed；
First support bar, the second support bar, the 3rd support bar are sequentially arranged along the length direction of the second frame,
First support bar, the second support bar, the 3rd support bar are the most vertically arranged, the first support bar, the 3rd support bar
The first end be all rotationally connected with the second frame, the first support bar, the 3rd support bar the second end all with the 4th
Frame is rotationally connected, and the first end of the second support bar and the second frame connect, the second end of the second support bar with
4th frame connects；
First blackboard body, the second blackboard body, the 3rd blackboard body be separately mounted to the first support bar,
On two support bars, the 3rd support bar；
Drive mechanism rotates for driving the first blackboard body and/or the 3rd blackboard body.
Preferably, the back side of the second blackboard body is provided with first gear teeth, and first gear teeth are arranged in a vertical direction；
Second blackboard body is removable with the second support bar to be connected；
Also including screw mandrel, screw mandrel is placed in second blackboard body side near its back side, screw mandrel and second
Support bar is arranged in parallel, and screw mandrel and the 4th frame are rotationally connected, screw mandrel and above-mentioned first gear teeth meshing.
Preferably, also including the first gear, the second gear, the first gear is arranged on screw mandrel, the second gear
Being rotatably installed on the 4th frame, the second gear is placed in the side of the first gear, the second gear and the first gear
Engagement, the radius of the second gear is more than the radius of the first gear.
Preferably, also including handle, handle is arranged on the second gear.
Preferably, drive mechanism includes the first drive division, the second drive division；
First drive division include the first tumbler, first connecting rod, second connecting rod, the first movable block, first turn
Axle；First tumbler is arranged in the first blackboard body, and first connecting rod is placed in the first tumbler away from the first limit
The side of frame, the first end and the 4th frame of first connecting rod be rotationally connected, the second end of first connecting rod and first
Tumbler is rotationally connected, and the first end and first tumbler of second connecting rod are rotationally connected, the second of second connecting rod
End is rotationally connected with the first movable block, and the first movable block is placed in first tumbler side near the first frame,
First movable block and the removable connection of the 4th frame, the first movable block is provided with the first through hole, the first through hole
Axis is parallel with the length direction of the 4th frame, and the inner circumferential surface of the first through hole is provided with second gear teeth；First
Length direction and the 4th frame of rotating shaft are arranged in parallel, and the first rotating shaft is rotationally connected with the first frame, first turn
One end of axle is placed in the first through hole, and the peripheral surface of the first rotating shaft is provided with the 3rd be meshed with second gear teeth
The gear teeth；
Second drive division include the second tumbler, third connecting rod, fourth link, the second movable block, second turn
Axle；Second tumbler is arranged in the 3rd blackboard body, and third connecting rod is placed in the second tumbler away from the 3rd limit
The side of frame, the first end and the 4th frame of third connecting rod be rotationally connected, the second end of third connecting rod and second
Tumbler is rotationally connected, and the first end and second tumbler of fourth link are rotationally connected, the second of fourth link
End is rotationally connected with the second movable block, and the second movable block is placed in second tumbler side near the 3rd frame,
Second movable block and the removable connection of the 4th frame, the second movable block is provided with the second through hole, the second through hole
Axis is parallel with the length direction of the 4th frame, and the inner circumferential surface of the second through hole is provided with fourth round tooth；Second
Length direction and the 4th frame of rotating shaft are arranged in parallel, and the second rotating shaft is rotationally connected with the 3rd frame, second turn
One end of axle is placed in the second through hole, and the peripheral surface of the second rotating shaft is provided with the 5th be meshed with fourth round tooth
The gear teeth.
Preferably, the first drive division also includes that the first turning handle, the first turning handle are arranged on the first rotating shaft
On；
Second drive division also includes that the second turning handle, the second turning handle are arranged in the second rotating shaft.
Preferably, the second blackboard body front is provided with guide rail, and guide rail is vertically arranged；
Also including gripper shoe, bristle, power unit, gripper shoe is horizontally or diagonally arranged, gripper shoe is placed in
Two blackboard body are near the side in its front, and gripper shoe is removable with guide rail to be connected；
Bristle is arranged on the gripper shoe side near the second blackboard body；
Power unit is for driving gripper shoe to move along the length direction of guide rail.
Preferably, gripper shoe is provided with multiple air suction opening near the side of the second blackboard body, is provided with in gripper shoe
Cavity volume, above-mentioned multiple air suction openings all connect with cavity volume；
Also including induced-draught fan, connecting tube, induced-draught fan is connected with cavity volume by connecting tube.
Preferably, the aperture of air suction opening gradually subtracts to the direction away from the second blackboard body from the second blackboard body
Little.
Preferably, each composition and the percentage by weight of framework is: C:2.5 2.6%, Cr:17.8 18.8%,
Mn:1 1.2%, Si:1.22 1.26%, B:0.2 0.3%, Ti:0.8 0.9%, Mo:0.2
0.3%, S :≤0.02%, P :≤0.02%；Surplus is Fe and inevitable impurity.
Cr: when C measures constant increase Cr amount, or Cr measures constant reduction C amount, and quenching degree all can be made to improve.When
Eutectic carbide is constant, and when Cr/C is 78, failure crack extended capability, anti-wear performance are the strongest, comprehensively
Analyze, C:2.5 2.6%, Cr:17.8 18.8%.
Si: general control is between 1.1 1.3%, it is possible to strengthening matrix；But, the content mistake of silicon amount
If height, affect wearability, therefore, Si:1.22 1.26%.
Mn: can thinning microstructure, improve toughness.
B: can crystal grain thinning.
Ti: improve wearability.
The framework toughness, the wearability that obtain according to said ratio are good, and hardness is high, is hardly damaged, service life
Long.
In the present invention, in use, the two ends of blackboard are the most reflective, the i.e. first blackboard body, the 3rd blackboard
Body is the most reflective, when needing to adjust the first blackboard body, angle between the 3rd blackboard body and perpendicular
When spending, it is possible to use drive mechanism drives them to rotate.
Utilizing the first turning handle to drive the first axis of rotation, third round tooth, second gear teeth are passed through in the first rotating shaft
Drive the first movable block to move to the first tumbler direction along the 4th frame, coordinate first connecting rod, second connecting rod
By the first tumbler jack-up, the first blackboard body is allowed to rotate centered by the first support bar, and then regulation first
Angle between blackboard body and perpendicular.
Utilizing the second turning handle to drive the second axis of rotation, the 5th gear teeth, fourth round tooth are passed through in the second rotating shaft
Drive the second movable block to move to the second tumbler direction along the 4th frame, coordinate third connecting rod, fourth link
By the second tumbler jack-up, the 3rd blackboard body is allowed to rotate centered by the 3rd support bar, and then regulation the 3rd
Angle between blackboard body and perpendicular.
The student that can preferably adapt to diverse location observes, better adaptability, it is to avoid reflective cause
Impact, imparts knowledge to students convenient.
Utilize handle to drive the second pinion rotation, rotated by the first gear driven screw mandrel, and then drive second
Blackboard body vertically moves, and adjusts the height of the second blackboard body, it is simple to teacher imparts knowledge to students.
Utilize power unit to drive gripper shoe to move, utilize bristle to remove the font in the second blackboard body.When
Bristle can produce substantial amounts of dust when rubbing with chalk font, utilizes induced-draught fan, connecting tube in gripper shoe
Cavity volume air draught, dust, in air suction opening enters cavity volume, is then discharged through induced-draught fan, thus is prevented powder
Dirt disorderly flies, and reduces the content of chalk dust in air, has beautified teaching environment, decreased environmental pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the rearview of second blackboard body of the present invention；
Fig. 3 is the sectional view after the gripper shoe amplification of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment
Combination that can be mutual；Below with reference to the accompanying drawings and in conjunction with the embodiments to the present invention elaborate.
With reference to Fig. 1,2,3:
The a kind of of present invention proposition avoids reflective blackboard, including framework, first support bar the 1, second support bar
2, the 3rd support bar the 3, first blackboard body the 4, second blackboard body the 5, the 3rd blackboard body 6, driving machine
Structure, screw mandrel the 8, first gear the 9, second gear 10, handle 11, gripper shoe 25, bristle 26, power list
Unit 27, induced-draught fan 30, connecting tube.
Framework includes the first frame, the second frame, the 3rd frame, the 4th frame, the first frame, the second limit
Frame, the 3rd frame, the 4th frame are sequentially arranged, and the first frame and the 3rd frame are positioned opposite, the first frame
The most vertically arrange with the 3rd frame；Second frame and the 4th frame are positioned opposite, and the second frame is placed in the 4th limit
The top of frame, the second frame and the 4th frame are the most horizontally disposed.
First support bar the 1, second support bar the 2, the 3rd support bar 3 is along the length direction cloth successively of the second frame
Putting, first support bar the 1, second support bar the 2, the 3rd support bar 3 is the most vertically arranged, the first support bar 1,
First end of the 3rd support bar 3 is all rotationally connected with the second frame, the first support bar the 1, the 3rd support bar 3
Second end is all rotationally connected with the 4th frame, and the first end of the second support bar 2 and the second frame connect, and second
Second end of support bar 2 and the 4th frame connect.
First blackboard body the 4, second blackboard body the 5, the 3rd blackboard body 6 is separately mounted to the first support bar
1, on the second support bar the 2, the 3rd support bar 3.
Drive mechanism rotates for driving the first blackboard body 4 and/or the 3rd blackboard body 6.
In the present embodiment, the back side of the second blackboard body 5 is provided with first gear teeth 7, and first gear teeth 7 are along vertically side
To layout.
Second blackboard body 5 is removable with the second support bar 2 to be connected.
Screw mandrel 8 is placed in the second blackboard body 5 near the side at its back side, screw mandrel 8 and the second support bar 2
Being arranged in parallel, screw mandrel 8 is rotationally connected with the 4th frame, and screw mandrel 8 engages with above-mentioned first gear teeth 7.
Further, the first gear 9 is arranged on screw mandrel 8, and the second gear 10 is rotatably installed in the 4th frame
On, the second gear 10 is placed in the side of the first gear 9, and the second gear 10 engages with the first gear 9, the
The radius of two gears 10 is more than the radius of the first gear 9；Handle 11 is arranged on the second gear 10.
In the present embodiment, drive mechanism includes the first drive division, the second drive division；First drive division includes
One tumbler 12, first connecting rod 13, second connecting rod the 14, first movable block the 15, first rotating shaft 16, first
Turning handle 22；First tumbler 12 is arranged in the first blackboard body 4, and first connecting rod 13 is placed in first
Tumbler 12 is rotationally connected away from the side of the first frame, the first end and the 4th frame of first connecting rod 13,
Second end and first tumbler 12 of first connecting rod 13 are rotationally connected, the first end of second connecting rod 14 and first
Tumbler 12 is rotationally connected, and the second end and first movable block 15 of second connecting rod 14 are rotationally connected, and first moves
Motion block 15 is placed in the first tumbler 12 near the side of the first frame, and the first movable block 15 and the 4th frame can
Mobile link, the first movable block 15 is provided with the first through hole, the axis of the first through hole and the length of the 4th frame
Direction is parallel, and the inner circumferential surface of the first through hole is provided with second gear teeth；The length direction of the first rotating shaft 16 and
Four frames are arranged in parallel, and the first rotating shaft 16 is rotationally connected with the first frame, and one end of the first rotating shaft 16 is placed in
In first through hole, the peripheral surface of the first rotating shaft 16 is provided with the third round tooth being meshed with second gear teeth.
Second drive division includes the second tumbler 17, third connecting rod 18, fourth link the 19, second movable block
20, second rotating shaft the 21, second turning handle 23；Second tumbler 17 is arranged in the 3rd blackboard body 6,
Third connecting rod 18 is placed in second tumbler 17 side away from the 3rd frame, the first end of third connecting rod 18 with
4th frame is rotationally connected, and the second end and second tumbler 17 of third connecting rod 18 are rotationally connected, and the 4th even
First end and second tumbler 17 of bar 19 are rotationally connected, the second end of fourth link 19 and the second movable block
20 are rotationally connected, and the second movable block 20 is placed in the second tumbler 17 near the side of the 3rd frame, and second moves
Motion block 20 is removable with the 4th frame to be connected, and the second movable block 20 is provided with the second through hole, the second through hole
Axis is parallel with the length direction of the 4th frame, and the inner circumferential surface of the second through hole is provided with fourth round tooth；Second
Length direction and the 4th frame of rotating shaft 21 are arranged in parallel, and the second rotating shaft 21 is rotationally connected with the 3rd frame,
One end of second rotating shaft 21 is placed in the second through hole, and the peripheral surface of the second rotating shaft 21 is provided with and fourth round tooth
The 5th gear teeth being meshed.
Further, the first turning handle 22 is arranged in the first rotating shaft 16；Second turning handle 23 is installed
In the second rotating shaft 21.
In the present embodiment, the second blackboard body 5 front is provided with guide rail 24, and guide rail 24 is vertically arranged；Support
Plate 25 is horizontally or diagonally arranged, gripper shoe 25 is placed in the second blackboard body 5 near the side in its front,
Fagging 25 is removable with guide rail 24 to be connected；Bristle 26 is arranged on gripper shoe 25 near the second blackboard body 5
Side；Power unit 27 is for driving gripper shoe 25 to move along the length direction of guide rail 24.
In the present embodiment, gripper shoe 25 is provided with multiple air suction opening 28 near the side of the second blackboard body 5,
Being provided with cavity volume 29 in fagging 25, above-mentioned multiple air suction openings 28 all connect with cavity volume 29；Induced-draught fan 30 passes through
Connecting tube connects with cavity volume 29.
Further, the aperture of air suction opening 28 from the second blackboard body 5 to the side away from the second blackboard body 5
To being gradually reduced；Air suction opening 28 is relatively big near the aperture of bristle 26 side, expands dust suction area, aperture by
The least, wind speed increases, and air current flow speed is fast, it is to avoid air suction opening 28 blocks, and improves dust collection efficiency.
In the present embodiment, each composition of framework and percentage by weight be: C:2.55%, Cr:18.4%, Mn:
1.05%, Si:1.24%, B:0.28%, Ti:0.85%, Mo:0.22%, S :≤0.02%, P :≤0.02%；
Surplus is Fe and inevitable impurity.Framework anti-wear performance is good, is hardly damaged, and service life is long.
In use, the two ends of blackboard are the most reflective, and the i.e. first blackboard body the 4, the 3rd blackboard body 6 is easy
Reflective, when needing to adjust the angle between the first blackboard body the 4, the 3rd blackboard body 6 and perpendicular,
Drive mechanism can be utilized to drive them to rotate.
Utilize the first turning handle 22 to drive the first rotating shaft 16 to rotate, the first rotating shaft 16 by third round tooth,
Second gear teeth drive the first movable block 15 to move along the 4th frame to the first tumbler 12 direction, coordinate first
Connecting rod 13, second connecting rod 14, by the first tumbler 12 jack-up, allow the first blackboard body 4 with the first support bar
Rotate centered by 1, and then the angle between regulation the first blackboard body 4 and perpendicular.
Utilize the second turning handle 23 to drive the second rotating shaft 21 to rotate, the second rotating shaft 21 by the 5th gear teeth,
Fourth round cingulum moves the second movable block 20 and moves to the second tumbler 17 direction along the 4th frame, coordinates the 3rd
Connecting rod 18, fourth link 19, by the second tumbler 17 jack-up, allow the 3rd blackboard body 6 with the 3rd support bar
Rotate centered by 3, and then the angle between regulation the 3rd blackboard body 6 and perpendicular.
The student that can preferably adapt to diverse location observes, better adaptability, it is to avoid reflective cause
Impact, imparts knowledge to students convenient.
Utilize handle 11 to drive the second gear 10 to rotate, drive screw mandrel 8 to rotate by the first gear 9, enter
And drive the second blackboard body 5 vertically to move, adjust the height of the second blackboard body 5, it is simple to old
Education of school.
Utilize power unit 27 to drive gripper shoe 25 to move, utilize bristle 26 to remove in the second blackboard body 5
Font.Substantial amounts of dust can be produced when bristle 26 rubs with chalk font, utilize induced-draught fan 30, connect
Pipe to cavity volume 29 air draught in gripper shoe 25, dust in air suction opening 28 enters cavity volume 29, and after warp
Cross induced-draught fan 30 to discharge, thus prevent dust disorderly to fly, reduce the content of chalk dust in air, beautified religion
Learn environment, decrease environmental pollution.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (9)
1. avoid reflective blackboard for one kind, it is characterised in that include framework, the first support bar, the second support
Bar, the 3rd support bar, the first blackboard body, the second blackboard body, the 3rd blackboard body, drive mechanism；
Framework includes the first frame, the second frame, the 3rd frame, the 4th frame, the first frame, the second limit
Frame, the 3rd frame, the 4th frame are sequentially arranged, and the first frame and the 3rd frame are positioned opposite, the first frame
The most vertically arrange with the 3rd frame；Second frame and the 4th frame are positioned opposite, and the second frame is placed in the 4th limit
The top of frame, the second frame and the 4th frame are the most horizontally disposed；
First support bar, the second support bar, the 3rd support bar are sequentially arranged along the length direction of the second frame,
First support bar, the second support bar, the 3rd support bar are the most vertically arranged, the first support bar, the 3rd support bar
The first end be all rotationally connected with the second frame, the first support bar, the 3rd support bar the second end all with the 4th
Frame is rotationally connected, and the first end of the second support bar and the second frame connect, the second end of the second support bar with
4th frame connects；
First blackboard body, the second blackboard body, the 3rd blackboard body be separately mounted to the first support bar,
On two support bars, the 3rd support bar；
Drive mechanism rotates for driving the first blackboard body and/or the 3rd blackboard body.
Avoid reflective blackboard the most according to claim 1, it is characterised in that the back of the body of the second blackboard body
Face is provided with first gear teeth, and first gear teeth are arranged in a vertical direction；
Second blackboard body is removable with the second support bar to be connected；
Also including screw mandrel, screw mandrel is placed in second blackboard body side near its back side, screw mandrel and second
Support bar is arranged in parallel, and screw mandrel and the 4th frame are rotationally connected, screw mandrel and above-mentioned first gear teeth meshing.
Avoid reflective blackboard the most according to claim 2, it is characterised in that also include the first gear,
Second gear, the first gear is arranged on screw mandrel, and the second pinion rotation is arranged on the 4th frame, the second tooth
Wheel is placed in the side of the first gear, the second gear and the engagement of the first gear, and the radius of the second gear is more than first
The radius of gear.
Avoid reflective blackboard the most according to claim 3, it is characterised in that also include handle, handle
It is arranged on the second gear.
Avoid reflective blackboard the most according to claim 1, it is characterised in that drive mechanism includes first
Drive division, the second drive division；
First drive division include the first tumbler, first connecting rod, second connecting rod, the first movable block, first turn
Axle；First tumbler is arranged in the first blackboard body, and first connecting rod is placed in the first tumbler away from the first limit
The side of frame, the first end and the 4th frame of first connecting rod be rotationally connected, the second end of first connecting rod and first
Tumbler is rotationally connected, and the first end and first tumbler of second connecting rod are rotationally connected, the second of second connecting rod
End is rotationally connected with the first movable block, and the first movable block is placed in first tumbler side near the first frame,
First movable block and the removable connection of the 4th frame, the first movable block is provided with the first through hole, the first through hole
Axis is parallel with the length direction of the 4th frame, and the inner circumferential surface of the first through hole is provided with second gear teeth；First
Length direction and the 4th frame of rotating shaft are arranged in parallel, and the first rotating shaft is rotationally connected with the first frame, first turn
One end of axle is placed in the first through hole, and the peripheral surface of the first rotating shaft is provided with the 3rd be meshed with second gear teeth
The gear teeth；
Second drive division include the second tumbler, third connecting rod, fourth link, the second movable block, second turn
Axle；Second tumbler is arranged in the 3rd blackboard body, and third connecting rod is placed in the second tumbler away from the 3rd limit
The side of frame, the first end and the 4th frame of third connecting rod be rotationally connected, the second end of third connecting rod and second
Tumbler is rotationally connected, and the first end and second tumbler of fourth link are rotationally connected, the second of fourth link
End is rotationally connected with the second movable block, and the second movable block is placed in second tumbler side near the 3rd frame,
Second movable block and the removable connection of the 4th frame, the second movable block is provided with the second through hole, the second through hole
Axis is parallel with the length direction of the 4th frame, and the inner circumferential surface of the second through hole is provided with fourth round tooth；Second
Length direction and the 4th frame of rotating shaft are arranged in parallel, and the second rotating shaft is rotationally connected with the 3rd frame, second turn
One end of axle is placed in the second through hole, and the peripheral surface of the second rotating shaft is provided with the 5th be meshed with fourth round tooth
The gear teeth.
Avoid reflective blackboard the most according to claim 5, it is characterised in that the first drive division also includes
First turning handle, the first turning handle is arranged in the first rotating shaft；
Second drive division also includes that the second turning handle, the second turning handle are arranged in the second rotating shaft.
Avoid reflective blackboard the most according to claim 1, it is characterised in that the second blackboard body front
Being provided with guide rail, guide rail is vertically arranged；
Also including gripper shoe, bristle, power unit, gripper shoe is horizontally or diagonally arranged, gripper shoe is placed in
Two blackboard body are near the side in its front, and gripper shoe is removable with guide rail to be connected；
Bristle is arranged on the gripper shoe side near the second blackboard body；
Power unit is for driving gripper shoe to move along the length direction of guide rail.
Avoid reflective blackboard the most according to claim 7, it is characterised in that gripper shoe is black near second
The side of plate body is provided with multiple air suction opening, is provided with cavity volume in gripper shoe, and above-mentioned multiple air suction openings are all and cavity volume
Connection；
Also including induced-draught fan, connecting tube, induced-draught fan is connected with cavity volume by connecting tube.
Avoid reflective blackboard the most according to claim 8, it is characterised in that the aperture of air suction opening is from
Two blackboard body are gradually reduced to the direction away from the second blackboard body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229075.6A CN105882244B (en) | 2016-04-12 | 2016-04-12 | It is a kind of to avoid reflective blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229075.6A CN105882244B (en) | 2016-04-12 | 2016-04-12 | It is a kind of to avoid reflective blackboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105882244A true CN105882244A (en) | 2016-08-24 |
| CN105882244B CN105882244B (en) | 2017-11-21 |
Family
ID=56703761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610229075.6A Expired - Fee Related CN105882244B (en) | 2016-04-12 | 2016-04-12 | It is a kind of to avoid reflective blackboard |
Country Status (1)
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| CN (1) | CN105882244B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248251A (en) * | 2018-01-30 | 2018-07-06 | 赣州市亿研机械设计研究院有限公司 | A kind of adjustable type blackboard for blackboard newspaper of imparting knowledge to students |
| CN108790498A (en) * | 2018-08-30 | 2018-11-13 | 深圳市有钱科技有限公司 | Intake type blackboard |
| CN113511021A (en) * | 2021-05-27 | 2021-10-19 | 浙江工业职业技术学院 | Blackboard with light and projection function |
| CN115131998A (en) * | 2022-07-25 | 2022-09-30 | 广东瑞有科技股份有限公司 | Wireless concatenation electronic blackboard |
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| CN201124672Y (en) * | 2007-11-28 | 2008-10-01 | 胡龙 | Anti-reflecting angle-adjustable blackboard |
| CN201231625Y (en) * | 2008-07-30 | 2009-05-06 | 温洋 | Blackboard capable of automatic clearing chalk dust |
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| CN203832079U (en) * | 2014-05-12 | 2014-09-17 | 湖南工业大学 | Turnover blackboard |
| CN204095352U (en) * | 2014-10-13 | 2015-01-14 | 西安交通大学城市学院 | Double-sided overturn type environment friendly blackboard |
| CN204222467U (en) * | 2014-11-18 | 2015-03-25 | 北京信息科技大学 | A kind of reflection-proof and adjustable for height blackboard |
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2016
- 2016-04-12 CN CN201610229075.6A patent/CN105882244B/en not_active Expired - Fee Related
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| JPH047200A (en) * | 1990-04-25 | 1992-01-10 | Kokuyo Co Ltd | Blackboard apparatus |
| CN201124672Y (en) * | 2007-11-28 | 2008-10-01 | 胡龙 | Anti-reflecting angle-adjustable blackboard |
| CN201231625Y (en) * | 2008-07-30 | 2009-05-06 | 温洋 | Blackboard capable of automatic clearing chalk dust |
| CN202413113U (en) * | 2012-01-10 | 2012-09-05 | 葛雪婷 | Anti-reflecting blackboard |
| CN203832079U (en) * | 2014-05-12 | 2014-09-17 | 湖南工业大学 | Turnover blackboard |
| CN204095352U (en) * | 2014-10-13 | 2015-01-14 | 西安交通大学城市学院 | Double-sided overturn type environment friendly blackboard |
| CN204222467U (en) * | 2014-11-18 | 2015-03-25 | 北京信息科技大学 | A kind of reflection-proof and adjustable for height blackboard |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248251A (en) * | 2018-01-30 | 2018-07-06 | 赣州市亿研机械设计研究院有限公司 | A kind of adjustable type blackboard for blackboard newspaper of imparting knowledge to students |
| CN108248251B (en) * | 2018-01-30 | 2019-12-10 | 临沂华标教学设备有限公司 | Adjustable blackboard for teaching blackboard newspaper |
| CN108790498A (en) * | 2018-08-30 | 2018-11-13 | 深圳市有钱科技有限公司 | Intake type blackboard |
| CN113511021A (en) * | 2021-05-27 | 2021-10-19 | 浙江工业职业技术学院 | Blackboard with light and projection function |
| CN115131998A (en) * | 2022-07-25 | 2022-09-30 | 广东瑞有科技股份有限公司 | Wireless concatenation electronic blackboard |
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| Publication number | Publication date |
|---|---|
| CN105882244B (en) | 2017-11-21 |
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