CN105856914B - A kind of blackboard component easy to adjusting angle - Google Patents
A kind of blackboard component easy to adjusting angle Download PDFInfo
- Publication number
- CN105856914B CN105856914B CN201610229070.3A CN201610229070A CN105856914B CN 105856914 B CN105856914 B CN 105856914B CN 201610229070 A CN201610229070 A CN 201610229070A CN 105856914 B CN105856914 B CN 105856914B
- Authority
- CN
- China
- Prior art keywords
- frame
- blackboard
- film
- shaft
- cavity volume
- 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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Classifications
-
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of easy to adjust the blackboard component of angle, including frame, support shaft, blackboard body, adjusting mechanism；Frame includes the first frame, the second frame, the 3rd frame, the 4th frame being sequentially arranged, and the first frame and the 3rd frame are positioned opposite, and the first frame is arranged vertically with the 3rd frame；Second frame and the 4th frame are positioned opposite, and the second frame is placed in the top of the 4th frame, and the second frame and the 4th frame are horizontally disposed；Support shaft is arranged in parallel with the first frame, and the first end of support shaft is rotatablely connected with the second frame, and the second end of support shaft is rotatablely connected with the 4th frame；Blackboard body is placed on the inside of frame, and the length direction of blackboard body is parallel with the length direction of the second frame, and blackboard body is rotatablely connected with support shaft；Adjusting mechanism is used to drive blackboard body to rotate centered on support shaft.The present invention avoids reflective interference, improves teaching efficiency.
Description
Technical field
The present invention relates to realia technical field, more particularly to a kind of blackboard component easy to adjusting angle.
Background technology
Blackboard is the instrument that must be used during we impart knowledge to students, but the blackboard under technology is there are following defect at present, for example,
Due to classroom, middle school student are more, when being sitting in the observation of students blackboard at edge because it is reflective the reason for cause to observe unclear, cause
Teaching inconvenience, also influences study, needs further to be improved.
The content of the invention
In order to solve technical problem present in background technology, the present invention proposes a kind of blackboard group easy to adjusting angle
Part, using effect are more preferable.
A kind of blackboard component easy to adjusting angle, including frame, support shaft, blackboard body, adjusting mechanism；
Frame includes the first frame, the second frame, the 3rd frame, the 4th frame being sequentially arranged, the first frame and the 3rd
Frame is positioned opposite, and the first frame is arranged vertically with the 3rd frame；Second frame and the 4th frame are positioned opposite, the second frame
The top of the 4th frame is placed in, the second frame and the 4th frame are horizontally disposed；
Support shaft and the first frame are arranged in parallel, and the first end of support shaft is rotatablely connected with the second frame, and the of support shaft
Two ends are rotatablely connected with the 4th frame；
Blackboard body is placed on the inside of frame, and the length direction of blackboard body is parallel with the length direction of the second frame, blackboard
Body is rotatablely connected with support shaft；
Adjusting mechanism is used to drive blackboard body to rotate centered on support shaft.
Preferably, adjusting mechanism includes first rotating shaft, the second shaft, turntable, first gear, second gear, eccentric wheel, company
Fitting；
First rotating shaft, the second shaft are rotatablely connected with the 4th frame, and first rotating shaft, the second shaft are placed in blackboard body
The back side, the first end of the first end of first rotating shaft and the second shaft is placed in the inner side of frame；
Turntable, first gear are installed in first rotating shaft；
Second gear is installed in the second shaft, and second gear is meshed with first gear；
Eccentric wheel is installed on the first end of the second shaft, between being reserved between the axis of eccentric wheel and the axis of the second shaft
Gap；
The first end of connector and the edge of eccentric wheel are hinged, and second end and the blackboard body of connector are hinged.Turntable is put
In the second end of first rotating shaft, adjusting mechanism further includes handle, and handle is installed on turntable.
Preferably, two mechanisms that are in the light are further included, the mechanism that is in the light includes light barrier, connecting rod, fixed block；One mechanism that is in the light
Interior light barrier and the first frame are rotatablely connected, another be in the light in-house light barrier and the rotation connection of the 3rd frame, connecting rod
First end be hinged with light barrier, second end and the fixed block of connecting rod are hinged, and fixed block is moved with the 4th frame and is connected.
Preferably, blackboard eraser, dust collection mechanism are further included；Blackboard eraser includes housing, bristle, and bristle is installed on the bottom of housing
Face, the bottom surface of housing are equipped with multiple air suction openings, and housing is equipped with the first connecting hole, the second connecting hole, has first to hold in housing
Chamber, the second cavity volume, the 3rd cavity volume；
Above-mentioned multiple air suction openings are connected with the first cavity volume；
Dust collection mechanism includes deformation sheet, magnetostrictive thin film, coil, the first film, the second film, and deformation sheet is placed in second
In cavity volume, the edge of deformation sheet is hermetically connected with the shell, and the second cavity volume is divided into the first accommodating chamber and the second accommodating chamber by deformation sheet,
The first connecting hole of above-mentioned first cavity volume through hole is connected with the first accommodating chamber, and the first accommodating chamber passes through the second connecting hole and the 3rd cavity volume
Connection；
Magnetostrictive thin film is installed in deformation sheet；
Coil is installed on the top surface of housing, coil curl arrangement, plane and magnetostrictive thin film institute where coil
Plane it is parallel or oblique, coil are connected with external power supply；
The first film is placed in the first accommodating chamber, the first end and housing hinge of the first film, the second end of the first film
For free end, the first film is used to closing or opening the first connecting hole；
Second film is placed in the 3rd cavity volume, the first end and housing hinge of the second film, and the second end of the second film is
Free end, the second film are used to closing or opening the second connecting hole.
Preferably, it is additionally provided with exhausting-gas hole on housing, the first end of exhausting-gas hole be connected with the external world, the second end of exhausting-gas hole and the
Two accommodating chambers connect.
Preferably, telescopic rod, moving member are further included, the first end of telescopic rod is connected with housing, the second end of telescopic rod with
Moving member is hinged, and moving member is moved with frame and is connected.
Preferably, accommodation space is equipped with telescopic rod, accommodation space is distributed along the length direction of telescopic rod, accommodation space
First end is connected with the 3rd cavity volume.
Preferably, collecting box is further included, collecting box is connected with the second end of accommodation space.
In the present invention, rotated using handle grip turn disk, pass through first rotating shaft, first gear, second gear, the second shaft
Band movable eccentric wheel rotates, and drives blackboard body to rotate using connector, and then adjust the angle between blackboard body and perpendicular
Degree, this makes it possible to the student for preferably adapting to diverse location to be observed, better adaptability, avoid it is reflective caused by influence,
Impart knowledge to students more convenient.
It can also adjust the angle between light barrier and blackboard body by mobile fixed block, adjust light intensity, avoid
Influence, further improves teaching efficiency caused by reflective.
The font in blackboard body is removed using blackboard eraser, substantial amounts of powder can be produced when bristle and the friction of chalk font
Dirt.
It is powered into coil, coil produces magnetic field, under the action of a magnetic force, magnetostrictive thin film movement, and then drive
Deformation sheet deforms.When deformation sheet compress the second accommodating chamber when, the first accommodating chamber produce negative pressure, extraneous air by air suction opening into
Enter in the first cavity volume, then, push the first film open and enter in the first accommodating chamber；When changing sense of current in coil, deformation sheet
Reversal deformation, deformation sheet compress the first accommodating chamber, and the second film of air pushes open enters in the 3rd cavity volume in the first accommodating chamber.So
Iterative cycles, effectively can suck dust in the 3rd cavity volume, so as to prevent dust disorderly to fly, reduce chalk dust in air
Content, has beautified teaching environment, reduces environmental pollution.
Current direction pace of change is fast in coil, and the deformation sheet deformation cycle is short, and suction dust speed is fast, low noise, no dirt
Dye, it is simple in structure, it is easy to use.
Dust in 3rd cavity volume can pass through accommodation space and enter in collecting box, easy to be uniformly processed.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the enlarged structure schematic diagram of adjusting mechanism；
Fig. 3 is blackboard eraser, the amplified structure diagram of dust collection mechanism.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutual combination；Below with reference to the accompanying drawings and in conjunction with the embodiments elaborate to the present invention.
With reference to Fig. 1：
A kind of blackboard component easy to adjusting angle proposed by the present invention, including frame, support shaft 1, blackboard body 2, tune
Save mechanism, two mechanisms that are in the light, blackboard eraser, dust collection mechanism, telescopic rod 31, moving member 32, collecting box 33.
Frame includes the first frame 3, the second frame 4, the 3rd frame 5, the 4th frame 6 that are sequentially arranged, the first frame 3 with
3rd frame 5 is positioned opposite, the first frame 3 and the vertical arrangement of the 3rd frame 5；6 opposite cloth of second frame 4 and the 4th frame
Put, the second frame 4 is placed in the top of the 4th frame 6, and the second frame 4 and the 4th frame 6 are horizontally disposed.
Support shaft 1 is arranged in parallel with the first frame 3, and the first end of support shaft 1 is rotatablely connected with the second frame 4, support shaft 1
Second end be rotatablely connected with the 4th frame 6.
Blackboard body 2 is placed on the inside of frame, and the length direction of blackboard body 2 is parallel with the length direction of the second frame 4, black
Plate body 2 is rotatablely connected with support shaft 1.
Adjusting mechanism is used to drive blackboard body 2 to rotate centered on support shaft 1.
In the present embodiment, adjusting mechanism includes first rotating shaft 7, the second shaft 8, turntable 9, first gear 10, second gear
11st, eccentric wheel 12, connector 13, handle 14.
First rotating shaft 7, the second shaft 8 are rotatablely connected with the 4th frame 6, and first rotating shaft 7, the second shaft 8 are placed in black
The first end of the back side of plate body 2, the first end of first rotating shaft 7 and the second shaft 8 is placed in the inner side of frame；
Turntable 9, first gear 10 are installed in first rotating shaft 7.
Second gear 11 is installed in the second shaft 8, and second gear 11 is meshed with first gear 10.
Eccentric wheel 12 is installed on the first end of the second shaft 8, pre- between the axis of eccentric wheel 12 and the axis of the second shaft 8
Leave gap.
The first end of connector 13 and the edge of eccentric wheel 12 are hinged, and the second end and blackboard body 2 of connector 13 are hinged.
In the present embodiment, turntable 9 is placed in the second end of first rotating shaft 7, and handle 14 is installed on turntable 9；Utilize handle 14
Turntable 9 is driven to rotate easy to use.
In the present embodiment, the mechanism that is in the light includes light barrier 15, connecting rod 16, fixed block 17；One in-house is in the light of being in the light
Plate 15 is rotatablely connected with the first frame 3, another in-house light barrier 15 that is in the light is rotatablely connected with the 3rd frame 5, connecting rod 16
First end and light barrier 15 it is hinged, the second end of connecting rod 16 is hinged with fixed block 17, and 17 and the 4th frame 6 of fixed block moves
Connection.
In the present embodiment, blackboard eraser includes housing 18, bristle 19, and bristle 19 is installed on the bottom surface of housing 18, housing 18
Bottom surface is equipped with multiple air suction openings 20, and housing 18 is equipped with the first connecting hole 21, the second connecting hole 22, has first to hold in housing 18
Chamber 23, the second cavity volume, the 3rd cavity volume 24.
Above-mentioned multiple air suction openings 20 are connected with the first cavity volume 23.
Dust collection mechanism includes deformation sheet 25, magnetostrictive thin film 26, coil 27, the first film 28, the second film 29, deformation
Piece 25 is placed in the second cavity volume, and edge and the housing 18 of deformation sheet 25 are tightly connected, and the second cavity volume is divided into first by deformation sheet 25
Accommodating chamber and the second accommodating chamber, above-mentioned first cavity volume 23 are connected by the first connecting hole 21 with the first accommodating chamber, the first accommodating chamber
It is connected by the second connecting hole 22 with the 3rd cavity volume 24；Magnetostrictive thin film 26 is installed in deformation sheet 25.
Coil 27 is installed on the top surface of housing 18,27 curl of coil arrangement, and the plane where coil 27 is stretched with mangneto
Plane where contracting film 26 is parallel or oblique, coil 27 are connected with external power supply.
The first film 28 is placed in the first accommodating chamber, and the first end and housing 18 of the first film 28 are hinged, the first film 28
Second end be free end, the first film 28 is used to closing or opening the first connecting hole 21.
Second film 29 is placed in the 3rd cavity volume 24, and the first end and housing 18 of the second film 29 are hinged, the second film 29
Second end be free end, the second film 29 is used to closing or opening the second connecting hole 22.
In the present embodiment, exhausting-gas hole 30 is additionally provided with housing 18, the first end of exhausting-gas hole 30 is connected with the external world, exhausting-gas hole 30
Second end be connected with the second accommodating chamber；Allow the second accommodating chamber to be in communication with the outside, reduce the resistance that deformation sheet 25 deforms, raising makes
Use effect.
In the present embodiment, the first end of telescopic rod 31 is connected with housing 18, and second end and the moving member 32 of telescopic rod 31 are cut with scissors
Connect, moving member 32 is moved with frame to be connected；Can flexibly it wipe mobile blackboard.
Further, accommodation space is equipped with telescopic rod 31, accommodation space is distributed along the length direction of telescopic rod 31, accommodates
The first end in space is connected with the 3rd cavity volume 24.
In the present embodiment, collecting box 33 is connected with the second end of accommodation space.
Drive turntable 9 to rotate using handle 14, pass through first rotating shaft 7, first gear 10, second gear 11, the second shaft 8
Band movable eccentric wheel 12 rotate, using connector 13 drive blackboard body 2 rotate, and then adjust blackboard body 2 and perpendicular
Between angle, this makes it possible to the student for preferably adapting to diverse location to be observed, and better adaptability, avoids reflective cause
Influence, teaching it is more convenient.
Angle between light barrier 15 and blackboard body 2 can also be adjusted, adjustment light is strong by mobile fixed block 17
Degree, avoid it is reflective caused by influence, further improve teaching efficiency.
The font in blackboard body 2 is removed using blackboard eraser, can be produced when bristle 19 and the friction of chalk font substantial amounts of
Dust.
It is powered into coil 27, coil 27 produces magnetic field, and under the action of a magnetic force, magnetostrictive thin film 26 moves, into
And deformation sheet 25 is driven to deform.When deformation sheet 25 compresses the second accommodating chamber, the first accommodating chamber produces negative pressure, extraneous air warp
Cross air suction opening 20 to enter in the first cavity volume 23, then, push the first film 28 open and enter in the first accommodating chamber；When changing in coil 27
Sense of current, 25 reversal deformation of deformation sheet, deformation sheet 25 compress the first accommodating chamber, and air pushes open second is thin in the first accommodating chamber
Film 29 enters in the 3rd cavity volume 24.Such iterative cycles, effectively can suck dust in the 3rd cavity volume 24, so as to prevent
Dust disorderly flies, and reduces the content of chalk dust in air, has beautified teaching environment, reduced environmental pollution.
Current direction pace of change is fast in coil 27, and the deformation cycle of deformation sheet 25 is short, and suction dust speed is fast, low noise,
It is pollution-free, it is simple in structure, it is easy to use.
Dust in 3rd cavity volume 24 can pass through accommodation space and enter in collecting box 33, easy to be uniformly processed.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of blackboard component easy to adjusting angle, it is characterised in that including frame, support shaft, blackboard body, adjusting machine
Structure；
Frame includes the first frame, the second frame, the 3rd frame, the 4th frame being sequentially arranged, the first frame and the 3rd frame
Positioned opposite, the first frame is arranged vertically with the 3rd frame；Second frame and the 4th frame are positioned opposite, and the second frame is placed in
The top of 4th frame, the second frame and the 4th frame are horizontally disposed；
Support shaft is arranged in parallel with the first frame, and the first end of support shaft is rotatablely connected with the second frame, the second end of support shaft
It is rotatablely connected with the 4th frame；
Blackboard body is placed on the inside of frame, and the length direction of blackboard body is parallel with the length direction of the second frame, blackboard body
It is rotatablely connected with support shaft；
Adjusting mechanism is used to drive blackboard body to rotate centered on support shaft；
Adjusting mechanism includes first rotating shaft, the second shaft, turntable, first gear, second gear, eccentric wheel, connector, handle；
First rotating shaft, the second shaft are rotatablely connected with the 4th frame, and first rotating shaft, the second shaft are placed in the back of the body of blackboard body
The first end of face, the first end of first rotating shaft and the second shaft is placed in the inner side of frame；
Turntable, first gear are installed in first rotating shaft, and turntable is placed in the second end of first rotating shaft；
Second gear is installed in the second shaft, and second gear is meshed with first gear；
Eccentric wheel is installed on the first end of the second shaft, and gap is reserved between the axis of eccentric wheel and the axis of the second shaft；
The first end of connector and the edge of eccentric wheel are hinged, and second end and the blackboard body of connector are hinged；
Handle is installed on turntable.
2. the blackboard component according to claim 1 easy to adjusting angle, it is characterised in that further include two machines that are in the light
Structure, the mechanism that is in the light include light barrier, connecting rod, fixed block；One be in the light in-house light barrier and the rotation connection of the first frame, separately
One be in the light in-house light barrier and the 3rd frame are rotatablely connected, and first end and the light barrier of connecting rod are hinged, and the second of connecting rod
End is hinged with fixed block, and fixed block is moved with the 4th frame and is connected.
3. the blackboard component according to claim 1 easy to adjusting angle, it is characterised in that further include blackboard eraser, dust suction
Mechanism；Blackboard eraser includes housing, bristle, and bristle is installed on the bottom surface of housing, and the bottom surface of housing is equipped with multiple air suction openings, on housing
Equipped with the first connecting hole, the second connecting hole, there is the first cavity volume, the second cavity volume, the 3rd cavity volume in housing；
Above-mentioned multiple air suction openings are connected with the first cavity volume；
Dust collection mechanism includes deformation sheet, magnetostrictive thin film, coil, the first film, the second film, and deformation sheet is placed in the second cavity volume
Interior, the edge of deformation sheet is hermetically connected with the shell, and the second cavity volume is divided into the first accommodating chamber and the second accommodating chamber by deformation sheet, above-mentioned
First cavity volume is connected by the first connecting hole with the first accommodating chamber, and the first accommodating chamber is connected by the second connecting hole and the 3rd cavity volume
Connect；
Magnetostrictive thin film is installed in deformation sheet；
Coil is installed on the top surface of housing, and coil curl is arranged, where the plane and magnetostrictive thin film where coil
Plane is parallel or oblique, coil are connected with external power supply；
The first film is placed in the first accommodating chamber, the first end and housing hinge of the first film, and the second end of the first film is certainly
By holding, the first film is used to closing or opening the first connecting hole；
Second film is placed in the 3rd cavity volume, the first end and housing hinge of the second film, and the second end of the second film is freely
End, the second film are used to closing or opening the second connecting hole.
4. the blackboard component according to claim 3 easy to adjusting angle, it is characterised in that exhaust is additionally provided with housing
Hole, the first end of exhausting-gas hole are connected with the external world, and the second end of exhausting-gas hole is connected with the second accommodating chamber.
5. the blackboard component according to claim 3 easy to adjusting angle, it is characterised in that further include telescopic rod, movement
Part, the first end of telescopic rod are connected with housing, and second end and the moving member of telescopic rod are hinged, and moving member moves company with frame
Connect.
6. the blackboard component according to claim 5 easy to adjusting angle, it is characterised in that it is empty that receiving is equipped with telescopic rod
Between, accommodation space is distributed along the length direction of telescopic rod, and the first end of accommodation space is connected with the 3rd cavity volume.
7. the blackboard component according to claim 6 easy to adjusting angle, it is characterised in that further include collecting box, collect
Case is connected with the second end of accommodation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229070.3A CN105856914B (en) | 2016-04-12 | 2016-04-12 | A kind of blackboard component easy to adjusting angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229070.3A CN105856914B (en) | 2016-04-12 | 2016-04-12 | A kind of blackboard component easy to adjusting angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105856914A CN105856914A (en) | 2016-08-17 |
| CN105856914B true CN105856914B (en) | 2018-05-11 |
Family
ID=56637271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610229070.3A Expired - Fee Related CN105856914B (en) | 2016-04-12 | 2016-04-12 | A kind of blackboard component easy to adjusting angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105856914B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798925A (en) * | 2017-12-06 | 2018-03-13 | 企创创（广州）科技有限公司 | A kind of intelligent tutor auxiliary platform equipment |
| CN108274925A (en) * | 2018-02-07 | 2018-07-13 | 曹雨晴 | A kind of mathematic(al) construction display board that angle can be adjusted |
| CN108674062A (en) * | 2018-05-02 | 2018-10-19 | 宋明刚 | A kind of reflection prevention blackboard |
| CN108742659A (en) * | 2018-06-20 | 2018-11-06 | 滨州学院 | A kind of Experiment of Psychology shade |
| CN110053400A (en) * | 2019-05-08 | 2019-07-26 | 刘维 | A kind of dust-removing blackboard eraser |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201712340U (en) * | 2010-05-08 | 2011-01-19 | 张瑶 | Improved blackboard |
| CN202088735U (en) * | 2011-06-14 | 2011-12-28 | 徐则达 | Novel blackboard |
| CN202413113U (en) * | 2012-01-10 | 2012-09-05 | 葛雪婷 | Anti-reflecting blackboard |
| CN202862919U (en) * | 2012-10-31 | 2013-04-10 | 张云 | Blackboard with light reflection degree capable of being adjusted |
| CN203752739U (en) * | 2014-03-25 | 2014-08-06 | 张家蕾 | Combined blackboard serving as three-dimensional teaching aid platform |
| CN103919377B (en) * | 2014-05-13 | 2015-12-16 | 重庆交通大学 | Rotatable reflection prevention blackboard with adjusting angle |
| CN204383026U (en) * | 2015-01-27 | 2015-06-10 | 河海大学 | A kind of touch dust absorption blackboard eraser |
-
2016
- 2016-04-12 CN CN201610229070.3A patent/CN105856914B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105856914A (en) | 2016-08-17 |
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Granted publication date: 20180511 Termination date: 20200412 |