CN105856916B - Suitable for the multi-functional blackboard of English teaching - Google Patents
Suitable for the multi-functional blackboard of English teaching Download PDFInfo
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- CN105856916B CN105856916B CN201610270036.0A CN201610270036A CN105856916B CN 105856916 B CN105856916 B CN 105856916B CN 201610270036 A CN201610270036 A CN 201610270036A CN 105856916 B CN105856916 B CN 105856916B
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- blackboard
- iron particle
- slide plate
- brush
- programmable controller
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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
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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
- B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
-
- 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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/06—Foreign languages
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- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of multi-functional blackboard suitable for English teaching, including several magnet strips being arranged in blackboard and the slide rail for being arranged on blackboard left and right ends, slide plate with roller is set in the slide rail, bare electromagnet is provided with the upside of the slide plate, bottom plate is provided with the downside of the slide plate, one end that the bottom plate is contacted with blackboard is provided with fur, the slide plate two ends are provided with baffle plate, the baffle plate, bottom plate, bare electromagnet forms iron particle accommodating chamber after being contacted with blackboard, the iron particle of white coating is scribbled in iron particle accommodating chamber provided with several peripheries, the blackboard top, which is provided with, to be used to drive the drive mechanism that slide plate is moved up and down, blackboard-cleaning mechanism is set on the slide plate, the blackboard-cleaning mechanism connection vibration dust-collection mechanism, the expansion link of the drive mechanism is provided with guide sleeve.Teacher draws four line lattice specifications, while setting-out can blackboard wiping, and dust can absorb, and dust descends slowly and lightly seldom, and plant running stably will not damage blackboard.
Description
Technical field
It is more particularly to a kind of suitable for the multi-functional black of English teaching the present invention relates to English-teaching aid technical field
Plate.
Background technology
At present, traditional blackboard handwriting in English is imparted knowledge to students still in the highest flight.In basic writing training and writing and teaching is carried out,
The specification writing on the blackboard of English is applied than wide, for normalized written, and teacher needs to draw corresponding English four lines lattice on blackboard,
During frame with long ruler a line a line go draw four line lattice, also someone invented four line lattice devices, English three rulings chalker,
The teaching equipment such as parallel lines line assistor, the blackboard with ruler and English, blackboard for teaching music, although can so reach picture
Go out the purpose of grid, but carry utensil at any time and lost time very much with its frame.Manually operated carry out setting-out, was drawing
Cheng Zhong, due to firmly uneven, it is not easy to which control dynamics and balance, the lines drawn out are not straight, unsightly, greatly influence teaching
Quality.
Patent No. 200920011822.4 discloses a kind of health blackboard, including rectangle plate face and plate face base
Ledge for chalk on blackboard, described ledge for chalk on blackboard is inverted triangle structure, and opens up installation dustbin at opening, opening in low side;Along plate face base
It is laterally inward and opens up multiple slots, slot diameter is equal to the maximum gauge of chalk.When using, chalk is assigned into chalk by user
In groove, used for teachers and students and facility is provided;The ledge for chalk on blackboard on plate face base collects teachers and students and writes the powder that letter written with chalk is dropped in plate face
Pen ash, and these chalk dusts are snapped down at opening along the ledge for chalk on blackboard of inverted triangle, and finally fall in dustbin, user is only
Need periodically to clear up dustbin and just may be used.And for example a kind of both sides disclosed in 201120009275.3 rotate health blackboard, including
Plate face, inwardly opens up slot on plate face base, drawer is assigned at slot in the horizontal direction, is symmetrically opened along the long side of drawer inner surface
If two slideways, cleaning brush is installed at slideway;Distinguish folding in plate face left and right sides and connect other plate face.But its according to
So there is problems with：1st, the writing on blackboard cloth is cleaned by washing lotion, and blackboard cloth need to be totally immersed in washing lotion, cleaning
Later blackboard cloth is wetted, it is necessary to could continue to write after blackboard cloth is dry every a period of time, is unsuitable for writing frequently classroom；
2nd, the writing that washing lotion can not be completely on erasing blackboard cloth, makes troubles to writing next time；3rd, blackboard cloth is vacantly set, in book
Blackboard cloth is pressurized and inwardly concaved when writing, and writing is inconvenient.Above-mentioned of the prior art have problems with, mistake of the blackboard in wiping
What dust descended slowly and lightly in journey is ubiquitous, teacher and student's Long-term absorption chalk powder, and majority is delayed in alveolar, by a series of
Stimulation, chemistry and immune effect just can cause lung to lose, including inflammation in respiratory system and pulmonary ventilation function decline, and cause
Chronic, acute pneumonia, lung cancer, pneumoconiosis etc.（Contain silica in chalk dust, be inhaled into lung, dissociate in lung
Dioxide-containing silica 1 percent pulmonary fibrosis formed above dust so that alveolar fibrosis, causes lung's work of breathing
It can decline）.Secondly the approach that chalk dust enters lung is to include nose, pharynx, bronchus by the upper respiratory tract, in this course,
Part dust can stay in the upper respiratory tract, and mechanical stimulus and damage are produced to mucomembranous epithelial cell, for a long time work in such a case
Make, a series of lesion can be caused, wherein the influence to nose is most commonly that induction rhinitis sicca, next to that hypertrophica nose
Inflammation, symptom is mycteroxerosis, nasal obstruction, nasal membrane are congested, secretion increases；Influence to pharynx is mainly the chronic pharynx of induction
Inflammation, makes pharyngeal drying, and not well, pharyngalgia pharynx of coughing up phlegm is itched；Chronic bronchitis is mainly induced on bronchial influence, can also sometimes
Trigger asthma, in addition it is also possible to causing the canceration of the parts such as nasopharynx, bronchus.Eyes are most accurate, most easy in human organ
One of impaired organ, Main Ingredients and Appearance calcium carbonate, the calcium oxide of chalk dust etc. are a kind of water-soluble substanceses, are easily dissolved in
Water, and alkaline matter is produced, such as teacher is in teaching process, and chalk dust is fallen into eye, stimulates lacrimal secretion, tears hydrolysis carbon
Sour calcium and produce alkaline matter, will seriously stimulate eye mucous membranes, cause mucosa injury, form chronic inflammation, it is also possible to induce
The generation of myopia.Teacher is in teaching process, and chalk dust is inevitably sticked on hand, while floating in air
Granule dust can also fall in teacher student's hair, on the face with neck, have stimulation to skin membrane, if hot summer days meet sweat
Solution, produces alkaline matter, just bigger to mucocutaneous stimulation, because the environment that human body skin is survived is weak acid environment,
The basic living environment of skin is so destroyed under dust alkalescence effect, chalk dust makes skin become dry, coarse, and companion
There is itching sensation, make human body uncomfortable, severe patient can cause acne, epifolliculitis, pyoderma, chapped skin and a large amount of trichomadesis,
Influence and disturb teacher's normal work and life.Chalk dust enters external auditory meatus, is mixed in sebum, can form ceruminal plug,
If for a long time in this way, the generation of ear inflammation can be caused.Among the composition for inducing the current market chalk of Other diseases, except containing metal
Element, lead manganese, barium equal size are relatively low outer, and the content of cadmium metal is higher, after cadmium is sucked by human body, and major storage is in liver, kidney, bone group
In knitting, to these histologic lesions substantially, major lesions caused by Long Term Contact cadmium compound are pulmonary emphysema and kidney damage, and the state of an illness can
In sexual development is carried out, Early manifestation is powerless, thin, dizzy, insomnia and dreamful sleep, anorexia and neurasthenia symptom, and has nose to go out
The phenomenons such as blood, chronic pharyngitis, Atrophic nasal mucosas and ulcer.Pulmonary emphysema are slowly in progress, and patient has progressive expiratory dyspnea, and activity adds
Weight, with palpitaition.Cadmium is also simultaneously most to be easily caused one of metallic element of cancer.Influence chalk dust tool to air quality
There is stronger adsorption capacity, many harmful levels of pathogens can adsorb on fine dust and be brought into student lung, so as to facilitate urgency
The generation of property and chronic inflammation, so as to cause student group group contagion respiratory tract and other epidemic diseases.Student is in the process of listening to the teacher
In, the sanitary index such as indoor and total number of bacteria runs down, and can be interacted with fine chalk dust, and aggravation chalk dust is to teacher
The harm of raw health.
The content of the invention
In view of this, the purpose of the present invention is in view of the shortcomings of the prior art there is provided a kind of suitable for many of English teaching
Function blackboard, teacher can carry out setting-out at a distance, draw four line lattice specifications, being capable of blackboard wiping, and dust while setting-out
It can absorb, dust descends slowly and lightly seldom, plant running is stable will not to damage blackboard.
To reach above-mentioned purpose, the present invention uses following technical scheme：A kind of multi-functional blackboard suitable for English teaching,
Including several magnet strips being arranged in blackboard and the slide rail for being arranged on blackboard left and right ends, being set in the slide rail has rolling
It is provided with the upside of the slide plate of wheel, the slide plate on the downside of bare electromagnet, the slide plate and is provided with bottom plate, what the bottom plate was contacted with blackboard
One end is provided with fur, and the slide plate two ends are provided with baffle plate, and the baffle plate, bottom plate, bare electromagnet form iron after being contacted with blackboard
The iron particle of white coating is scribbled in particle accommodating chamber, iron particle accommodating chamber provided with several peripheries, the blackboard top is provided with
For the drive mechanism for driving slide plate to move up and down, blackboard-cleaning mechanism is set, the blackboard-cleaning mechanism connects on the slide plate
Vibration dust-collection mechanism is met, the electric expansion bar of the drive mechanism is provided with guide sleeve.
Further, the drive mechanism includes the electric expansion bar for being arranged on blackboard top, the electric expansion bar
Free end is connected with slide plate.
Further, the blackboard-cleaning mechanism includes being arranged on slide plate top electromagnetism push rod and free positioned at electromagnetism push rod
The blackboard brush at end, is provided with several guiding mechanisms between the blackboard brush and slide plate.
Further, the guiding mechanism includes the guide cylinder being arranged on slide plate and is arranged on blackboard brush to stretch into guiding
The guide rod of cylinder.
Further, the vibration dust-collection mechanism includes the vibrating motor being arranged on blackboard brush, the slide plate, bar shaped electricity
Magnet, the baffle plate of slide plate both sides constitute the grey chamber of storage, and the slide plate is provided with the air exhauster connected with the grey chamber of storage, the air exhauster
Air outlet is set with the dust settling pocket for collecting dust.
Further, electric expansion bar, vibrating motor, air exhauster are connected with programmable controller.
Further, the slide plate is provided with emergency light.
Further, the programmable controller is connected with wireless controller.
Further, the suction after the iron particle is adsorbed is more than the bent radial power of fur, and iron particle is placed on iron
After grain accommodating chamber, the bent radial power of fur is more than pressure of the iron particle to fur.
Further, the slide plate two ends are respectively provided with least two rollers.
Further, the bottom plate is provided with sloping baffle.
Further, the fur is made of abrasive rubber, and abrasive rubber is made up of the raw material of following parts by weight, neoprene
50~70 parts of rubber, 20~25 parts of butadiene-styrene rubber, 6~8 parts of magnesia, 8~10 parts of carbon black, 7~11 parts of paraffin, stearic acid 3~6
Part, 6~8 parts of m-xylene diamine.
A kind of control method of multi-functional blackboard suitable for English teaching, comprises the following steps：
1）The iron particle for scribbling white coating is placed on iron particle accommodating chamber, Controlled by Programmable Controller electromagnetism push rod work
Make, blackboard brush is pressed on blackboard, now Controlled by Programmable Controller electric expansion bar works, drive slide plate and blackboard brush upward
Mobile, blackboard brush is clean by blackboard-cleaning, when iron particle runs into the magnet strip in blackboard, and magnet strip adsorbs iron particle black
Plate surface, electric expansion bar continues to drive slide plate and blackboard brush to move up, and the suction after being adsorbed due to iron particle is more than soft
The bent radial power of hair, fur is after moving up, it is impossible to brush off the iron particle on blackboard, and blackboard eraser is moved to blackboard top
Afterwards, 4 magnet strips absorption iron particle four standards of formation in electric expansion bar power supply, blackboard are disconnected by programmable controller
Four line lattice；
2）When not needing four line lattice, blackboard brush is pressed on blackboard by the work of Controlled by Programmable Controller electromagnetism push rod, can
Programmable controller control bare electromagnet is powered, and then Controlled by Programmable Controller electric expansion bar works, and drives slide plate and black
Scrubbing brush is moved down, and fur is first contacted with iron particle, and the suction after being adsorbed due to iron particle is more than the bent radial power of fur,
Fur is after moving down, it is impossible to brush off the iron particle on blackboard, after bare electromagnet is contacted with iron particle, bare electromagnet
Magnetic force be more than blackboard internal magnet bar magnetic force, the iron particle on blackboard is attracted to bare electromagnet, when the iron on blackboard
Particle is by after bare electromagnet all absorption, and Controlled by Programmable Controller bare electromagnet deenergization, iron particle falls in iron
In grain accommodating chamber, it is easy to four line lattice of drafting next time to use, blackboard eraser is clean by blackboard-cleaning during moving down；
3）After blackboard eraser is moved to bottom, electric expansion bar power supply, PLC technology are disconnected by programmable controller
Device, which controls the spring in electromagnetism push rod deenergization, electromagnetism push rod to retract blackboard eraser, makes blackboard brush not contacted with blackboard, can compile
Range controller control vibrating motor work, the dust on blackboard brush is shaken off in the grey intracavitary of storage, Controlled by Programmable Controller exhausting
The ash for storing up grey intracavitary is transported to dust settling pocket by machine work.
Compared with prior art, the beneficial effects of the invention are as follows：The slide plate of the present invention uses high intensity Q420 steel steel plates, electricity
Magnetic push rod is connected with the thrust that slide rheostat can control electromagnetism push rod, and the thrust of electromagnetism push rod is not more than the deformation power of steel plate,
Deformed so as to anti-limited slip plate, just face slide plate is big with blackboard contact gap, and iron particle is spilt or bare electromagnet can not be by iron
Particle is scraped；The iron particle for scribbling white coating is placed on iron particle accommodating chamber, Controlled by Programmable Controller electromagnetism push rod work
Make, blackboard brush is pressed on blackboard, now Controlled by Programmable Controller electric expansion bar works, and now bare electromagnet is obstructed
Electricity, drives slide plate and blackboard brush to move up, and blackboard brush is clean by blackboard-cleaning, and the magnet strip in blackboard is run into when iron particle
When, magnet strip adsorbs iron particle on blackboard surface, and electric expansion bar continues to drive slide plate and blackboard brush to move up, due to iron
Suction after particle is adsorbed is more than the bent radial power of fur, and fur is after moving up, it is impossible to by the iron particle on blackboard
Brush off, blackboard eraser is moved to behind blackboard top, 4 magnetic in electric expansion bar power supply, blackboard are disconnected by programmable controller
Four line lattice of iron bar absorption iron particle four standards of formation；When not needing four line lattice, Controlled by Programmable Controller electromagnetism push rod
Work, blackboard brush is pressed on blackboard, and then Controlled by Programmable Controller electric expansion bar works, drive slide plate and blackboard brush to
Lower movement, fur is first contacted with iron particle, and the suction after being adsorbed due to iron particle is more than the bent radial power of fur, and fur exists
After moving down, it is impossible to brush off the iron particle on blackboard, after bare electromagnet is contacted with iron particle, the magnetic force of bare electromagnet
More than the magnetic force of blackboard internal magnet bar, the iron particle on blackboard is attracted to bare electromagnet, when the iron particle quilt on blackboard
Bare electromagnet is all after absorption, and Controlled by Programmable Controller bare electromagnet deenergization, iron particle falls in iron particle receiving
Intracavitary, is easy to draw next time and uses, blackboard eraser is clean by blackboard-cleaning during moving down；Treat that blackboard eraser is moved to bottom
Afterwards, electric expansion bar power supply is disconnected by programmable controller, Controlled by Programmable Controller electromagnetism push rod deenergization, electromagnetism is pushed away
Spring in bar, which retracts blackboard eraser, makes blackboard brush not contacted with blackboard, the work of Controlled by Programmable Controller vibrating motor, will be black
Dust on scrubbing brush is shaken off in the grey intracavitary of storage, and the ash for storing up grey intracavitary is transported to dedusting by the work of Controlled by Programmable Controller air exhauster
Bag.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is the cross section structure diagram of the present invention；
Fig. 3 is the mplifying structure schematic diagram at A in Fig. 2；
Fig. 4 is the attachment structure schematic diagram of blackboard brush and slide plate；
Fig. 5 is the guiding mechanism structural representation of the present invention；
Fig. 6 is the skateboard schematic diagram of the present invention.
Embodiment
Embodiment 1：As shown in Fig. 1,2,3,4,5,6, a kind of multi-functional blackboard suitable for English teaching, including be arranged on
The cunning with roller 2 is set in several magnet strips 9 and the slide rail 1 for being arranged on the left and right ends of blackboard 3 in blackboard, the slide rail
Plate 7, the upside of slide plate 7 is provided with bare electromagnet, and the downside of slide plate 7 is provided with bottom plate 24, and the bottom plate 24 is contacted with blackboard
One end be provided with fur 25, the two ends of slide plate 7 be provided with baffle plate, the baffle plate, bottom plate 24, bare electromagnet 18 are contacted with blackboard
The iron particle 20 for scribbling white coating in iron particle accommodating chamber 19, iron particle accommodating chamber provided with several peripheries is formed afterwards, it is described
Blackboard top, which is provided with to be used to drive, sets blackboard-cleaning mechanism on the drive mechanism that slide plate is moved up and down, the slide plate, described black
Plate Wiping mechanism connection vibration dust-collection mechanism, the electric expansion bar 6 of the drive mechanism is provided with guide sleeve 5.
The drive mechanism includes being arranged on the electric expansion bar 6 on blackboard top, the free end of the electric expansion bar with
Slide plate 7 is connected.
The blackboard-cleaning mechanism includes being arranged on slide plate top electromagnetism push rod 14 and positioned at the black of electromagnetism push rod free end
Scrubbing brush 12, is provided with several guiding mechanisms 8 between the blackboard brush 12 and slide plate 7.
The guiding mechanism 8 includes the guide cylinder 23 being arranged on slide plate 7 and is arranged on blackboard brush to stretch into guide cylinder
Guide rod 22.Play a part of righting-oriented blackboard brush, prevent blackboard brush from tilting, so that it is stable to ensure that blackboard brush is wiped.
Programmable controller is connected with wireless controller, is easy to far distance controlled.
The vibration dust-collection mechanism includes the vibrating motor 11 being arranged on blackboard brush, the slide plate 7, bare electromagnet
18th, the baffle plate of slide plate both sides constitutes the grey chamber 13 of storage, and the slide plate is provided with the air exhauster 16 connected with the grey chamber of storage, the air exhauster
16 air outlet is set with the dust settling pocket 17 for collecting dust.
Electric expansion bar, vibrating motor, air exhauster are connected with programmable controller, can long distance by programmable controller
From operation.
The slide plate two ends are respectively provided with two rollers.
The distance on the magnet strip surface and blackboard surface is 1mm.
The distance on the bare electromagnet and blackboard surface is 1mm.
The slide plate is provided with emergency light 10, is easy to illumination after power failure, and the emergency light is arranged on slide plate
Centre, good illumination effect.
The bottom plate 24 is provided with sloping baffle 21, is easy to iron particle to be contacted with blackboard.
The bare electromagnet is connected with slide rheostat, is easy to adjust the magnetic force of bare electromagnet, is easy to blackboard table
The iron particle absorption in face, the length of the bare electromagnet is identical with the magnet strip length in blackboard, and bare electromagnet with it is black
Magnet strip in plate is corresponding, completely can adsorb the iron particle on blackboard, not connect using bare electromagnet with blackboard surface
Touch, blackboard will not be damaged.
A kind of control method of multi-functional blackboard suitable for English teaching, comprises the following steps：
1）The iron particle for scribbling white coating is placed on iron particle accommodating chamber, Controlled by Programmable Controller electromagnetism push rod work
Make, blackboard brush is pressed on blackboard, now Controlled by Programmable Controller electric expansion bar works, drive slide plate and blackboard brush upward
Mobile, blackboard brush is clean by blackboard-cleaning, when iron particle runs into the magnet strip in blackboard, and magnet strip adsorbs iron particle black
Plate surface, electric expansion bar continues to drive slide plate and blackboard brush to move up, and the suction after being adsorbed due to iron particle is more than soft
The bent radial power of hair, fur is after moving up, it is impossible to brush off the iron particle on blackboard, and blackboard eraser is moved to blackboard top
Afterwards, 4 magnet strips absorption iron particle four standards of formation in electric expansion bar power supply, blackboard are disconnected by programmable controller
Four line lattice；
2）When not needing four line lattice, blackboard brush is pressed on blackboard, so by the work of Controlled by Programmable Controller electromagnetism push rod
Controlled by Programmable Controller electric expansion bar is worked afterwards, drives slide plate and blackboard brush to move down, and fur is first contacted with iron particle,
Suction after being adsorbed due to iron particle is more than the bent radial power of fur, and fur is after moving down, it is impossible to by blackboard
Iron particle is brushed off, after bare electromagnet is contacted with iron particle, and the magnetic force of bare electromagnet is more than the magnetic force of blackboard internal magnet bar, will
Iron particle on blackboard is attracted to bare electromagnet, after the iron particle on blackboard is all adsorbed by bare electromagnet, can compile
Range controller controls bare electromagnet deenergization, and iron particle falls in iron particle accommodating chamber, is easy to four line lattice of drafting next time to make
With blackboard eraser is clean by blackboard-cleaning during moving down；
3）After blackboard eraser is moved to bottom, electric expansion bar power supply, PLC technology are disconnected by programmable controller
Device, which controls the spring in electromagnetism push rod deenergization, electromagnetism push rod to retract blackboard eraser, makes blackboard brush not contacted with blackboard, can compile
Range controller control vibrating motor work, the dust on blackboard brush is shaken off in the grey intracavitary of storage, Controlled by Programmable Controller exhausting
The ash for storing up grey intracavitary is transported to dust settling pocket by machine work.
The difference of embodiment 2 and embodiment 1 is：Suction after the iron particle 20 is adsorbed is more than the radial direction of fur 25
Folding force, iron particle is placed on after iron particle accommodating chamber, and the bent radial power of fur 25 is more than pressure of the iron particle to fur 25.
The fur is made of abrasive rubber, and abrasive rubber is made up of the raw material of following parts by weight, 50 parts of neoprene,
20 parts of butadiene-styrene rubber, 6 parts of magnesia, 8 parts of carbon black, 7 parts of paraffin, 3 parts of stearic acid, 6 parts of m-xylene diamine.
The difference of embodiment 3 and embodiment 1 is：The fur is made of abrasive rubber, and abrasive rubber is by following heavy
Measure the raw material composition of part, 70 parts of neoprene, 25 parts of butadiene-styrene rubber, 8 parts of magnesia, 10 parts of carbon black, 11 parts of paraffin, stearic acid 6
Part, 8 parts of m-xylene diamine.
The difference of embodiment 4 and embodiment 1 is：The fur is made of abrasive rubber, and abrasive rubber is by following heavy
Measure the raw material composition of part, 60 parts of neoprene, 23 parts of butadiene-styrene rubber, 7 parts of magnesia, 9 parts of carbon black, 10 parts of paraffin, stearic acid 4.5
Part, 7 parts of m-xylene diamine.
Embodiment 2,3,4 is using the Special wear-resistant rubber fur of the present invention, fur diameter 2mm length 5mm, its pliability
Good and wear-resisting, pliability complements each other with anti-wear performance, has reached good state, and one side abrasive rubber fur can be prevented
Only iron particle falls, and silicone oil is oozed out on surface during the work of another aspect rubber fur, frictional contact surface lubrication is helped, so as to extend rubber
The service life of glue fur, what is more important will not wear and tear blackboard.By invention test, the abrasive rubber using the present invention makes
It is 3 times of prior art with the life-span, and using after 6 months, using some blackboard that all do not wear and tear of the rubber fur of the present invention, and
Rubber fur has been worn and torn substantially also without damage using the fur of prior art, and blackboard scratch is serious, what is more important
Grain drop it is many, after half a year, cavity can iron particle can drop half, using rubber fur iron particle of the invention substantially without
Drop.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common
Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover among scope of the presently claimed invention.
Claims (7)
1. a kind of multi-functional blackboard suitable for English teaching, it is characterised in that：Including several magnet being arranged in blackboard
Set in bar and the slide rail for being arranged on blackboard left and right ends, the slide rail and be provided with bar on the upside of the slide plate with roller, the slide plate
Bottom plate is provided with the downside of shape electromagnet, the slide plate, one end that the bottom plate is contacted with blackboard is provided with fur, and the slide plate two ends are set
There are baffle plate, the baffle plate, bottom plate, bare electromagnet to be formed after contacting with blackboard to set in iron particle accommodating chamber, iron particle accommodating chamber
There are several peripheries to scribble the iron particle of white coating, the blackboard top, which is provided with, to be used to drive the driving machine that slide plate is moved up and down
Blackboard-cleaning mechanism is set on structure, the slide plate, and the blackboard-cleaning mechanism connects vibration dust-collection mechanism, the drive mechanism
Electric expansion bar is provided with guide sleeve, and the drive mechanism includes being arranged on the electric expansion bar on blackboard top, described electronic to stretch
The free end of contracting bar is connected with slide plate, and the blackboard-cleaning mechanism includes being arranged on slide plate top electromagnetism push rod and pushing away positioned at electromagnetism
The blackboard brush of bar free end, is provided with several guiding mechanisms between the blackboard brush and slide plate, the vibration dust-collection mechanism includes setting
The vibrating motor on blackboard brush is put, the slide plate, bare electromagnet, the baffle plate of slide plate both sides constitute the grey chamber of storage, the slide plate
The air exhauster connected with the grey chamber of storage is provided with, the air outlet of the air exhauster is set with the dust settling pocket for collecting dust.
2. it is applied to the multi-functional blackboard of English teaching as claimed in claim 1, it is characterised in that：Electric expansion bar, vibration
Motor, air exhauster are connected with programmable controller.
3. it is applied to the multi-functional blackboard of English teaching as claimed in claim 2, it is characterised in that：The slide plate is provided with should
Anxious illuminating lamp.
4. it is applied to the multi-functional blackboard of English teaching as claimed in claim 3, it is characterised in that：The programmable controller
It is connected with wireless controller.
5. it is applied to the multi-functional blackboard of English teaching as claimed in claim 1, it is characterised in that：The bottom plate, which is provided with, to incline
Slanting baffle, is easy to iron particle to be contacted with blackboard.
6. it is applied to the multi-functional blackboard of English teaching as claimed in claim 1, it is characterised in that：The fur is using wear-resisting
Rubber is made, and abrasive rubber is made up of the raw material of following parts by weight, 50~70 parts of neoprene, 20~25 parts of butadiene-styrene rubber, oxygen
Change 6~8 parts of magnesium, 8~10 parts of carbon black, 7~11 parts of paraffin, 3~6 parts of stearic acid, 6~8 parts of m-xylene diamine.
7. a kind of control method of multi-functional blackboard suitable for English teaching as described in claim any one of 1-6, it is special
Levy and be：Comprise the following steps：
1）The iron particle for scribbling white coating is placed on iron particle accommodating chamber, Controlled by Programmable Controller electromagnetism push rod works,
Blackboard brush is pressed on blackboard, now Controlled by Programmable Controller electric expansion bar works, drives slide plate and blackboard brush to moving up
Dynamic, blackboard brush is clean by blackboard-cleaning, when iron particle runs into the magnet strip in blackboard, and magnet strip adsorbs iron particle in blackboard
Surface, electric expansion bar continues to drive slide plate and blackboard brush to move up, because the suction after iron particle is adsorbed is more than fur
Bent radial power, fur is after moving up, it is impossible to brush off the iron particle on blackboard, and blackboard eraser is moved to blackboard top
Afterwards, 4 magnet strips absorption iron particle four standards of formation in electric expansion bar power supply, blackboard are disconnected by programmable controller
Four line lattice；
2）When not needing four line lattice, blackboard brush is pressed on blackboard, may be programmed by the work of Controlled by Programmable Controller electromagnetism push rod
Controller control bare electromagnet is powered, and then Controlled by Programmable Controller electric expansion bar works, and drives slide plate and blackboard brush
Move down, fur is first contacted with iron particle, the suction after being adsorbed due to iron particle is more than the bent radial power of fur, fur
After moving down, it is impossible to which the iron particle on blackboard is brushed off, after bare electromagnet is contacted with iron particle, the magnetic of bare electromagnet
Power is more than the magnetic force of blackboard internal magnet bar, the iron particle on blackboard is attracted into bare electromagnet, when the iron particle on blackboard
After bare electromagnet all absorption, Controlled by Programmable Controller bare electromagnet deenergization, iron particle falls to be held in iron particle
Receive intracavitary, be easy to draw four line lattice next time and use, blackboard eraser is clean by blackboard-cleaning during moving down；
3）After blackboard eraser is moved to bottom, electric expansion bar power supply, programmable controller control are disconnected by programmable controller
Spring in electromagnetism push rod deenergization processed, electromagnetism push rod, which retracts blackboard eraser, makes blackboard brush not contacted with blackboard, programmable control
Device control vibrating motor work processed, the dust on blackboard brush is shaken off in the grey intracavitary of storage, Controlled by Programmable Controller air exhauster work
Make the ash for storing up grey intracavitary being transported to dust settling pocket.
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| CN201610270036.0A CN105856916B (en) | 2016-04-26 | 2016-04-26 | Suitable for the multi-functional blackboard of English teaching |
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| CN108407501A (en) * | 2018-01-24 | 2018-08-17 | 河南工程学院 | A kind of electronic blackboard with automatic erasing function |
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|---|---|---|---|---|
| JP3730832B2 (en) * | 2000-02-15 | 2006-01-05 | ニチレイマグネット株式会社 | Display board |
| CN103231604A (en) * | 2013-04-18 | 2013-08-07 | 皮光明 | Blackboard with automatic dust collection eraser |
| CN204095349U (en) * | 2014-09-16 | 2015-01-14 | 于丹 | A kind of blackboard |
| CN104816566A (en) * | 2015-04-18 | 2015-08-05 | 张秋英 | English teaching blackboard |
| CN204596253U (en) * | 2015-04-20 | 2015-08-26 | 江西财经职业学院 | A kind of portable English teaching board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5953193B2 (en) * | 2012-09-19 | 2016-07-20 | 株式会社青井黒板製作所 | Blackboard equipment |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3730832B2 (en) * | 2000-02-15 | 2006-01-05 | ニチレイマグネット株式会社 | Display board |
| CN103231604A (en) * | 2013-04-18 | 2013-08-07 | 皮光明 | Blackboard with automatic dust collection eraser |
| CN204095349U (en) * | 2014-09-16 | 2015-01-14 | 于丹 | A kind of blackboard |
| CN104816566A (en) * | 2015-04-18 | 2015-08-05 | 张秋英 | English teaching blackboard |
| CN204596253U (en) * | 2015-04-20 | 2015-08-26 | 江西财经职业学院 | A kind of portable English teaching board |
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