CN2778580Y - Automatically erasing dust-free black board - Google Patents
Automatically erasing dust-free black board Download PDFInfo
- Publication number
- CN2778580Y CN2778580Y CN 200420109563 CN200420109563U CN2778580Y CN 2778580 Y CN2778580 Y CN 2778580Y CN 200420109563 CN200420109563 CN 200420109563 CN 200420109563 U CN200420109563 U CN 200420109563U CN 2778580 Y CN2778580 Y CN 2778580Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- roller
- dust
- wiping
- blackboard body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a full automatic erasing and dust-free blackboard used for teaching. The blackboard adopts a no seam soft composite rubber blackboard body, wherein the blackboard body is provided with a transmission mechanism which causes the blackboard body to rotate and a control device, and the composite rubber blackboard body is divided into a front and a back halves. When a teacher completes the front writing, a start button is pressed, the blackboard body can move and make the other half body come out from bottom to top, and then the blackboard body automatically stops; when the blackboard body moves, two erasing rollers on the back surface of the blackboard are driven to generate rotary friction with the composite rubber board body by the other electric motor, writing on the surface of the blackboard body is erased, chalk dust falls into a dust collecting box and enters a negative pressure sweeping device through a dust conveying tube, and dust erasing, sucking and storing are achieved. The utility model also solves the dust pollution problem caused by the complicated process that the teacher erases the blackboard, and the health of the teacher and students are effectively protected.
Description
Technical field
The utility model relates to a kind of teaching with automatically wiping dust-free blackboard.
Background technology
Blackboard is absolutely necessary in teaching, flourish along with educational undertaking, and the consumption of blackboard is ten hundreds of, and last 100 years prolongs blackboard wasted work effort when wiping of using, dust is too many, has a strong impact on the healthy of teacher, student.The improved products that appears on the market at present has: dust-removing blackboard eraser or blank water-based crayon formula blackboard or modern hand-written electric screen, these all can not really solve the problem that teaching exists with blackboard.Dust-removing blackboard eraser is not accomplished dustless cleaning because of its finite volume to the large tracts of land continuous erase; White water-based crayon plate can only be confined to short time use among a small circle, because it is that the use crayon writes on white substrate, is easy to form the refraction of light in the classroom, causes back row student to see clearly, easily causes student eyesight to descend for a long time; The hand-written electric screen can't really apply in the reality teaching because plate face size and cost are restricted.
Summary of the invention
The purpose of this utility model is: provide a kind of teaching with automatically wiping dust-free blackboard, utilize existing chalk to write, finish need wipe the time writing, as long as press the button, blackboard can be wiped automatically, and is efficient and convenient, do not influence teacher and teach, can thoroughly solve teacher's trouble and worry.
Technical solution of the present utility model is: this dust-free blackboard comprises a soft compounded rubber blackboard body of no seam, drive transmission mechanism that plate body rotates, one group be arranged on wiping roller automatically, making driving mechanism, the collection powder box of wiping the roller rotation, negative pressure starch absorbing device and the control device that connects the collection powder box of blackboard body back; Constitute whole housing by up and down bracing frame and both sides model, initiatively be installed on the model of both sides from roller, outside the soft plastic blackboard body suit roller, master roller connects driving motor; The roller of wiping that is arranged on the blackboard body back is installed on the model of both sides, wipes roller the collection powder box is installed outward, wipes roller and connects slowspeed machine; Collection powder aperture powder absorbing pipe connects the negative pressure starch absorbing device on the collection powder box, and negative pressure starch absorbing device, driving motor, slowspeed machine all are connected on the control device.
Blackboard is write and is finished in the time of need wiping, and the writing surface of front is turned to the blackboard back wipe, and dust falls into the collection powder box by the sucking-off of negative pressure starch absorbing device, so just makes that blackboard has obtained automatically wiping and dedusting.
The utility model is simple in structure, and dependable performance fundamentally solves numerous and diverse work and the dust pollution of wiping blackboard, and teachers and students can both be in the good environment.
Description of drawings
Fig. 1 is a schematic appearance of the present utility model
Fig. 2 is a side cutaway view of the present utility model
Fig. 3 is the part sectioned view of facing of Fig. 2
Fig. 4 is the collection powder box elevation cross-sectional view of Fig. 2
Fig. 5 is the first wiping roller profile of Fig. 2
Fig. 6 is the multiple wiping roller profile of Fig. 2
Fig. 7 is the utility model control circuit figure
Among the figure: 1 wipes start button, 2 manual stop buttons, 3 negative pressure starch absorbing devices, the soft compounded rubber plate body of 4 no seams, 5 plate bodys rotate active roll tube, 6 plate bodys rotate driven roller, pressure roller tube on 7,8 press down roller, 9 felts are just wiped roller, 10 combine hair wipes roller again, 11 collection powder boxes, 12 collection powder boxes, 13 collection powder box meal outlets, 14 inner shoes, housing supports on 15,16 times housing supports, 17 plate body rotary electric machines, 18 plate body rotary electric machine sprocket wheels, 19 plate body driving chains, 20 active roll tube minor sprockets, 21 wipe the roller electric rotating machine, 22 wipe the roller motor sprocket, 23 wipe the double-stranded wheel of roller again, 24 wipe roller motor chain again, 25 just wipe the roller sprocket wheel, 26 just wipe the roller driving chain, 27 left and right sides models, 28 stop to use sensor automatically, 29 collection powder box mouth limit wool tops, 30 connect the duff pipe of starch absorbing device
The specific embodiment
Shown in Fig. 1,2,3,4, this dust-free blackboard comprises a soft compounded rubber blackboard body of no seam, drive transmission mechanism that plate body rotates, one group be arranged on wiping roller automatically, making driving mechanism, the collection powder box of wiping the roller rotation, negative pressure starch absorbing device and the control device that connects the collection powder box of blackboard body back; It is characterized in that: constitute the integral installation housing by up and down bracing frame 15,16 and both sides model 27, master roller 5, be installed on the both sides model 27 from roller 6, outside the soft plastic blackboard body 4 suit rollers 5,6, master roller 5 is through sprocket wheel 18, chain 19, gimmal 20; Connect driving motor 17, the roller 9,10 of wiping that is arranged on blackboard body 4 back is installed on the both sides model 27, wipe roller 9, the 10 outer collection powder boxes 11,12 of installing, wipe roller 9 and connect motor 21 through sprocket wheel 22, chain 24, wipe between the roller 9,10 and interconnect through two strands wheel 23, sprocket wheel 25, chain 26, two rollers 9,10 of wiping at the beginning of dividing, wiping are again made with felt and comprehensive hair respectively, one group of meal outlet 13 on the collection powder box 11,12 connects negative pressure starch absorbing device 3 through duff pipe 30, and there is wool top 29 on collection powder box mouth limit; Negative pressure starch absorbing device 3, driving motor 17, electric rotating machine 21 are connected on the control device, establish start button 1, stop button 2 and proximity sensor 28 on the control device.
After start button 1 is pressed, plate body rotary electric machine 17 must be established beginning work by cable, being transferred to sprocket wheel 20 by sprocket wheel 18 chains 19 makes master roller 5 begin rotation, the drive plate body rotates, the soft compounded rubber plate body 4 of no seam moves from bottom to top, writing surface forwards the blackboard back to, in this simultaneously, wipe roller electric rotating machine 21 and must establish beginning work by cable, wipe roller 10 rotations by wiping motor sprocket 22 again by chain 24 drives, the sprocket wheel of wiping again on the roller 10 23 is double-stranded wheels, send sprocket wheel 25 to by chain 26 and make and just wipe roller 9 and rotate simultaneously, just wipe roller 9 outsides and be felt as shown in Figure 5, wipe roller 10 outsides again and be as shown in Figure 6 weak point and combine mao, when two roller rotations, friction takes place for rotary body and blackboard surface wipes the mark of writing on the plate face automatically; Dust falls into collection powder box 11,12, all enters negative pressure starch absorbing device 3 through a plurality of meal outlets 13 by duff pipe 28.
Among Fig. 3, supporting plate (14) is used for the soft compounded rubber blackboard body of support, so that blackboard does not move inward when writing.Two pressure rollers (7,8) design in order to solve the thickness of wiping roller and collection powder box installation site minimizing blackboard among Fig. 2.
With jointless soft compounded rubber plate body in two, every startup is once turned over half, automatically stop then, this needs to paste two metal objects at a hemihedrism place of compounded rubber plate body, when movement of metallic during to proximity sensor front sensor level can take place changes and make control circuit work, motor stop to wait for next time to start.
As shown in Figure 7, control device mainly by power circuit, stop control circuit automatically, drive circuit is formed electric loop; Form power circuit by transformer, rectifier, regulator block; By semiconductor near sensor LJ
1, 2A
3-4-2BX, common interface chip IC
1, ULN2003A 1/7IC
1-1, IC
1-2, IC
1-3Three same branch circuits compositions stop control circuit automatically; Drive circuit is by the plate body drive motors and wipe the roller drive motors and constitute.
IC
1Be one 7 branch's interface chip, 7 groups of same Darlington drivers are contained in its inside, and every group of load capacity is 500MA/50V, also contains fly-wheel diode in the integrated package, guarantee to be connected with inductive load the safety of use.
1, power circuit
The 220V alternating voltage is through transformer T
1The back obtains the 15V alternating voltage, through VD
1-VD
4Rectification, W7812 voltage stabilizing and C
1-C
2Filtering after obtain a stable 12V DC voltage for using.
2, stop control apparatus automatically
Relay J after start button QA presses
1Get electric J
1-1The contact forms self-insurance, motor D
1-D
2Start working, the compounded rubber plate body from bottom to top begins to rotate, when the metal object that is set in compounded rubber plate body 1/2 place moves to sensor LJ
1During the front, LJ
12 pin output levels uprise by low, what then level needed is a level by high step-down, so 1/7IC
1-1Make gun stocks and use LJ
12 pin pass through resistance R
1Receive IC
1-1Pin, at this moment 1/7IC
1-116 pin output low levels, positive supply passes through R
2To capacitor C
3Charging, R
3Be used to control the charging interval, at the moment 1/7IC of charging
1-2, 2 pin form high level.This mainly is with solving the metal object that is set on the plate body after plate body stops, also being in sensor IJ
1The front can't change 2 pin level, and next startup can't be carried out.Work as C
2Get back to the low level wait after being full of again works next time.IC
1-215 pin meet IC
1-33 pin pass through resistance R
4The generation level changes, and works as 1/7IC
1-215 pin output low levels the time, IC
1-314 pin output high level, relay J
1The release motor quits work.TA is that stop button is used for manually stopping under the state of emergency among the figure.
3, drive circuit:
D among Fig. 7
1Be that the plate body drive motors is selected inner back-geared slowspeed machine for use, model 220VAC/50HZ15W, 50 commentaries on classics/per minutes, D2 wipe the roller drive motors, select above-mentioned motor model 220V/AC50HZ10W equally for use, and 100 commentaries on classics/per minutes are worked as relay J
1J during work
1-2Adhesive, two motors are worked simultaneously.Each electric elements of control device are as follows:
Power transformer GEI-12AC220V/AC15V, three-terminal regulator block W7812, proximity transducer LJ12A3-4-2BX, manual stop button TA, wipe start button QA, IC 1VLN2003A (the general chip that connects), relay IEC255 5A/12V, plate body driving motor D1 220VAC/50HZ15W 50 commentaries on classics/per minute slowspeed machines, wipe roller motor D 2220VAC/50HZ 10W 100 commentaries on classics/per minute slowspeed machines, diode: VD1-VD4=1N4007, resistance 1/4W carbon membrane R1=10K R2:R3:R4=4.7K, electric capacity: C1, C2=47UF/25V C3=10UF/25V.
Claims (4)
1. teaching is characterized in that with automatically wiping dust-free blackboard: this dust-free blackboard comprises a soft compounded rubber blackboard body of no seam, drive transmission mechanism that plate body rotates, one group be arranged on wiping roller automatically, making driving mechanism, collection powder box, the connection of wiping the roller rotation collect the negative pressure starch absorbing device and the control device of powder box of blackboard body back; By bracing frame (15,16) and both sides model (27) constitute the integral installation housing up and down, master roller (5), be installed on the both sides model (27) from roller (6), outside soft plastic blackboard body (4) suit roller (5), (6), master roller (5) is through sprocket wheel (18), chain (19), gimmal (20); Connect driving motor (17), the roller (9,10) of wiping that is arranged on blackboard body (4) back is installed on the both sides model (27).Wipe the outer collection powder box (11,12) of installing of roller (9,10), wipe roller (9) and connect motor (21) through sprocket wheel (22), chain (24), wipe between the roller (9,10) and interconnect through two strands wheel (23), sprocket wheel (25), chain (26), one group of meal outlet (13) on the collection powder box (11,12) connects negative pressure starch absorbing device (28) through duff pipe (30), negative pressure starch absorbing device (3), driving motor (17), slowspeed machine (21) are connected on the control device, establish start button (1), stop button (2) and proximity sensor (28) on the control device.
2. teaching according to claim 1 is characterized in that with automatically wiping dust-free blackboard: there is wool top (29) on collection powder box mouth limit.
3. teaching according to claim 1 is characterized in that with automatically wiping dust-free blackboard: go up connection supporting plate (14) at both sides model (27).
4. teaching according to claim 1 is characterized in that with automatically wiping dust-free blackboard: go up connection pressure roller (7,8) at both sides model (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109563 CN2778580Y (en) | 2004-11-26 | 2004-11-26 | Automatically erasing dust-free black board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109563 CN2778580Y (en) | 2004-11-26 | 2004-11-26 | Automatically erasing dust-free black board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2778580Y true CN2778580Y (en) | 2006-05-10 |
Family
ID=36752669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109563 Expired - Fee Related CN2778580Y (en) | 2004-11-26 | 2004-11-26 | Automatically erasing dust-free black board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2778580Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260583A (en) * | 2014-09-24 | 2015-01-07 | 西安文理学院 | Blackboard with dust prevention function |
| CN104442114A (en) * | 2014-12-15 | 2015-03-25 | 广西大学 | Blackboard with automatic erasing function |
| CN109080330A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | It is a kind of to utilize the automatic teaching method for wiping grey dedusting storing blackboard |
| CN109080331A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | A kind of grey dedusting storing blackboard of automatic wiping |
| CN112009145A (en) * | 2020-09-07 | 2020-12-01 | 福建武平致青春电子商务有限公司 | Driving mechanism for self-cleaning blackboard |
-
2004
- 2004-11-26 CN CN 200420109563 patent/CN2778580Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260583A (en) * | 2014-09-24 | 2015-01-07 | 西安文理学院 | Blackboard with dust prevention function |
| CN104442114A (en) * | 2014-12-15 | 2015-03-25 | 广西大学 | Blackboard with automatic erasing function |
| CN109080330A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | It is a kind of to utilize the automatic teaching method for wiping grey dedusting storing blackboard |
| CN109080331A (en) * | 2018-08-22 | 2018-12-25 | 王成帅 | A kind of grey dedusting storing blackboard of automatic wiping |
| CN109080330B (en) * | 2018-08-22 | 2020-10-27 | 王成帅 | Teaching method using automatic dust wiping, removing and storing blackboard |
| CN112009145A (en) * | 2020-09-07 | 2020-12-01 | 福建武平致青春电子商务有限公司 | Driving mechanism for self-cleaning blackboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202593110U (en) | Green dustless blackboard eraser | |
| CN105172432B (en) | Electric integrated dry wiping writing board | |
| CN206154970U (en) | Junior middle school's blackboard of imparting knowledge to students | |
| CN107297976A (en) | A kind of blackboard | |
| CN203004845U (en) | Electric type blackboard cleaner | |
| CN2778580Y (en) | Automatically erasing dust-free black board | |
| CN107053915A (en) | A kind of education blackboard cleaning device | |
| CN104070894B (en) | With the magnetic writing board of handwriting erasing mechanism | |
| CN2855772Y (en) | Environmental protection type chalk-dust free black-board | |
| CN201201453Y (en) | Full automatic blackboard eraser | |
| CN202293891U (en) | Controllable lifting automatic dust-removing blackboard | |
| CN207657477U (en) | A kind of primary school math teaching blackboard | |
| CN206551745U (en) | It is a kind of to improve the assistant teaching aid of classroom efficiency | |
| CN215153479U (en) | Automatic blackboard eraser | |
| CN110154598B (en) | Multifunctional robot for classroom multimedia teaching assistance | |
| CN104442125A (en) | Automatically-controlled blackboard eraser | |
| CN2785873Y (en) | Environment friendly full-automatic track type multifunctional blackboard | |
| CN203844474U (en) | Display device combining chalkboard and projector | |
| CN108688377A (en) | A kind of blackboard for education with height adjusting and automatic scrubbing brush function | |
| CN104070892A (en) | Rotation type triangular prism intelligence blackboard based on electronic control | |
| CN204322851U (en) | Automatic control blackboard eraser | |
| CN212073471U (en) | Multifunctional teaching blackboard for mathematical teaching | |
| CN2673665Y (en) | Automatic blackboard erasing device | |
| CN203832082U (en) | Multifunctional blackboard | |
| CN2885605Y (en) | Transmission type automatic erasing blackboard device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |