CN107471876B - A kind of English teaching system for drawing four line lattice specifications - Google Patents
A kind of English teaching system for drawing four line lattice specifications Download PDFInfo
- Publication number
- CN107471876B CN107471876B CN201710646808.0A CN201710646808A CN107471876B CN 107471876 B CN107471876 B CN 107471876B CN 201710646808 A CN201710646808 A CN 201710646808A CN 107471876 B CN107471876 B CN 107471876B
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- blackboard
- slide plate
- iron particle
- dust
- brush
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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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
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
-
- 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
- B43L1/045—Blackboards with magnetic action
-
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
-
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of English teaching systems for drawing four line lattice specifications, including several magnet strips being arranged in blackboard and the sliding rail that blackboard left and right ends are arranged in, setting has the slide plate of idler wheel in the sliding rail, scraper plate is equipped on the upside of the slide plate, bottom plate is equipped on the downside of the slide plate, one end that the bottom plate is contacted with blackboard is equipped with fur, the slide plate both ends are equipped with baffle, the baffle, bottom plate, scraper plate forms iron particle accommodating chamber after contacting with blackboard, the iron particle of white coating is coated in iron particle accommodating chamber equipped with several peripheries, the blackboard top is equipped with the driving mechanism for driving slide plate to move up and down, blackboard-cleaning mechanism on the slide plate, the blackboard-cleaning mechanism connects vibration dust-collection mechanism, the vibration dust-collection mechanism is equipped with dust non-proliferation mechanism.Teacher can draw lines at a distance, draw four line lattice specifications, can wipe blackboard while setting-out, and dust can absorb, dust descends slowly and lightly seldom, and device is stable will not to damage blackboard.
Description
Technical field
The present invention relates to English-teaching aid technical field, in particular to a kind of English teaching system for drawing four line lattice specifications
System.
Background technique
Currently, traditional blackboard handwriting in English teaching is still in the highest flight.In carrying out basic writing training and writing and teaching,
The specification writing on the blackboard of English is applied than wide, and for normalized written, teacher needs to draw corresponding English four line lattice on blackboard,
Remove to draw four line lattice with long ruler a line a line when frame, also someone invented four line lattice devices, English three ruling lineation devices,
Parallel lines are crossed the teaching equipments such as assistor, the blackboard with ruler and English, blackboard for teaching music, although can achieve picture in this way
The purpose of grid out, but carry utensil at any time and wasted time very much with its frame.
Four ruling drawing tool of English teaching in the prior art, a kind of teaching as disclosed in CN201320144764.9 are black
Plate further includes longitudinal coordinate ruler, two sliding blocks and two guide rails, is respectively equipped with one along its length on the upper and lower side of blackboard main body
A guide rail is set with a sliding block on each guide rail, and longitudinal coordinate ruler is slidably connected by two sliding blocks and two guide rails, longitudinal
At least four through-holes are uniformly machined on coordinatometer along its length, each through hole of coordinatometer is machined with fixed logical with chalk
The orthogonal fixation hole in hole is provided with a fixed pin in each fixation hole, and fixed pin is threadedly coupled with fixation hole.It is not
Foot place is: such blackboard eraser needs people's gripping sliding block to slide, and people is relatively painstaking in drawing process, and the degree of automation is not
Height, when use, need left hand by equipment pressing on blackboard, right hand sliding skateboard, since teaching equipment volume is big, when operating cost
Arduously, the lines of picture are inconsistent, unintelligible；More importantly manual operation draw lines, in drawing process, due to
Power is uneven, it is not easy to which control and balance, the lines drawn out are not straight, unsightly, greatly influence quality of instruction.
The Chinese invention patent that for another example number of patent application is 201020655323.1 discloses a kind of simple blackboard eraser, including
The sliding rail of blackboard upper and lower ends is set, idler wheel is equipped in sliding rail, swipe is connect with the idler wheel of setting on the slide rail, the bottom of swipe
Face is equipped with bristle, and the back side of swipe is equipped with handle.The length of the swipe and the width of blackboard are suitable, hold the handle edge in swipe
Blackboard sliding swipe can be wiped.This blackboard eraser solves the problems, such as that erasing monolith blackboard is difficult, simultaneously erased speed
Degree also increases.But the handle that such blackboard eraser needs people to hold in swipe swipes, and people is relatively painstaking during pulling handle,
The degree of automation is not high.
CN202448577U discloses a kind of hygienic blackboard, including bracket, washing trough and driving motor, driving motor
Axis connection shaft one is exported, belt wheel one is installed in shaft one, one end of shaft one passes through bracket and extend into washing trough, shaft one
It being rotatablely connected with bracket and washing trough, shaft two is arranged in the top of shaft one, and one end of shaft two is pierced by bracket and connection belt wheel two,
Belt wheel one and belt wheel two are connected by transmission belt one, and belt wheel three and belt wheel four are arranged in shaft two, and the top setting of shaft two turns
Belt wheel five and belt wheel six are arranged in shaft three for axis three, and belt wheel three and belt wheel five are connected by transmission belt two, belt wheel four and belt wheel six
It is connected by transmission belt three, blackboard cloth is installed on transmission belt two and transmission belt three, the lower part of blackboard cloth is extend into washing trough, washing trough
Groove body including being loaded with washing lotion, shaft one extend into the installation of the part in washing trough hairbrush.The hygienic blackboard structure is simple,
Using will not threaten to the health of people, more hygienic.But it still remains following problems: 1, the writing on blackboard cloth
It is cleaned by washing lotion, blackboard cloth need to be totally immersed in washing lotion, and blackboard cloth is wetted after cleaning, be needed every a period of time
It could continue to write after blackboard cloth is dry, be unsuitable for writing frequent classroom；2, washing lotion cannot word completely on erasing blackboard cloth
Mark is made troubles to writing next time；3, blackboard cloth is vacantly arranged, and when writing, blackboard cloth compression is inwardly concaved, and writes not
It is convenient.It is above-mentioned it is in the prior art have the following problems, blackboard dust during wiping descends slowly and lightly ubiquitous, Jiao Shiji
Student's Long-term absorption chalk powder, majority are delayed in alveolar, and by a series of stimulation, chemistry and immune effect can be made
It is lost at lung, including inflammation in respiratory system and pulmonary ventilation function decline, causes chronic, acute pneumonia, lung cancer, pneumoconiosis etc.
(contains silica in chalk dust, be inhaled into lung, in the dioxide-containing silica that lung dissociates in 1 percent or more shapes
At the dust of pulmonary fibrosis, to make alveolar fibrosis, lung's respiratory function is caused to decline).Secondly chalk dust enters lung
Approach be include nose, pharynx, bronchus by the upper respiratory tract, in this course, part dust can stay in the upper respiratory tract, to viscous
Film epithelial cell generates mechanical stimulus and damage, works in such a case for a long time, can cause a series of lesion, wherein to nose
Influence most commonly induce rhinitis sicca, followed by hypertrophic rhinitis, symptom is mycteroxerosis, nasal obstruction, nasal membrane
Congested, secretion increases；Influence to pharynx mainly induces chronic pharyngitis, makes pharyngeal drying, and not well, pharyngalgia pharynx of coughing up phlegm is itched；
Chronic bronchitis is mainly induced on bronchial influence, can also cause asthma sometimes, in addition it is also possible to causing nasopharynx, branch
The canceration of the parts such as tracheae.Eyes are one of organ most accurate, most easily damaged in human organ, the main ingredient of chalk dust
Calcium carbonate, calcium oxide etc. are a kind of water-soluble substances, are dissolved easily in water, and generate alkaline matter, if teacher is in teaching process
In, chalk dust is fallen into eye, stimulates lacrimal secretion, and tears hydrolyze calcium carbonate and generate alkaline matter, will seriously stimulate eye
Portion's mucous membrane causes mucosa injury, forms chronic inflammation, it is also possible to induce the generation of myopia.Teacher is in teaching process, chalk
Dust is inevitably stained on hand, while the granule dust floated in air can also fall in teacher student's hair, on the face
On neck, to the irritating effect of skin membrane, if hot summer days meet sweat solution, alkaline matter is generated, just to mucocutaneous stimulation
It is bigger, because the environment that human skin is survived is weak acid environment, the base of skin is destroyed under the effect of dust alkalinity in this way
This living environment, chalk dust makes skin become dry, coarse, and feels with itching, keeps human body uncomfortable, serious person 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 canal, is mixed in sebum, can form ceruminal plug, if long-term in this way, can cause the generation of ear inflammation.It induces
Among the composition of the current market chalk of Other diseases, in addition to relatively low containing metallic element, lead manganese, barium equal size, cadmium metal contains
Measure higher, after cadmium is sucked by human body, major storage is obvious to these histologic lesions in liver, kidney, bone tissue, Long Term Contact cadmium
Major lesions caused by compound are pulmonary emphysema and kidney damage, and the state of an illness can show in early days powerless, thin, head in sexual development is carried out
Dizzy, insomnia and dreamful sleep, appetite stimulator and neurasthenia symptom, and there have nosebleed, chronic pharyngitis, Atrophic nasal mucosas and ulcer etc. to be existing
As.Pulmonary emphysema are slowly in progress, and patient has progressive expiratory dyspnea, and activity aggravates, with palpitaition.Cadmium is also most to easily lead to cancer simultaneously
One of metallic element of disease.Influence chalk dust to air quality has stronger adsorption capacity, and many disinfect pathogens can
It is adsorbed on fine dust and is brought into student lung, to facilitate the generation of acute and chronic inflammation, so as to cause student group
Body group contagion respiratory tract and other epidemic diseases.Student during listening to the teacher, gradually dislike by the sanitary indexs such as indoor and total number of bacteria
Change, can interact with fine chalk dust, aggravates harm of the chalk dust to teachers and students' health.Shadow of the chalk to myopia of student
It rings for a long time, our teaching appliance continues to use the green plate of blackboard, metal and chalk mode, and student often uses books in black and white
Deng since the vision of people is to identify font and its color by photosensitive, sense color, and the contrast of black and white is excessively strong, easily
Cause the fatigue of vision, so as to cause the generation of student's large area myopia disease incidence.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of English for drawing four line lattice specifications
Language tutoring system, teacher can draw lines at a distance, draw four line lattice specifications, can wipe blackboard, and powder while setting-out
Dirt can absorb, and dust descends slowly and lightly seldom, and device is stable will not to damage blackboard.
In order to achieve the above objectives, the invention adopts the following technical scheme: a kind of English teaching system for drawing four line lattice specifications
System, including several magnet strips being arranged in blackboard and the sliding rail that blackboard left and right ends are arranged in, setting has in the sliding rail
Have a slide plate of idler wheel, scraper plate be equipped on the upside of the slide plate, be equipped with bottom plate on the downside of the slide plate, the bottom plate contacted with blackboard one
End is equipped with fur, and the slide plate both ends are equipped with baffle, and the baffle, bottom plate, scraper plate form iron particle after contacting with blackboard and accommodate
Chamber, the interior iron particle that white coating is coated with equipped with several peripheries of iron particle accommodating chamber, the blackboard top is equipped with for driving
The driving mechanism that slide plate moves up and down, the slide plate are equipped with blackboard-cleaning mechanism, and the blackboard-cleaning mechanism connection vibration is inhaled
Dirt mechanism, the vibration dust-collection mechanism are equipped with dust non-proliferation mechanism.
Further, the driving mechanism includes that the electric telescopic rod on blackboard top is arranged in, the electric telescopic rod
Free end is connect with slide plate.
Further, the blackboard-cleaning mechanism includes setting in slide plate top electromagnetism push rod and is located at electromagnetism push rod freedom
The blackboard brush at end is equipped with several guiding mechanisms between the blackboard brush and slide plate.
Further, the guiding mechanism includes that guiding is protruded into the guide cylinder being arranged on slide plate and setting on blackboard brush
The guide rod of cylinder.
Further, the vibration dust-collection mechanism includes the vibrating motor being arranged on blackboard brush, the slide plate, scraper plate,
The baffle of slide plate two sides, which is constituted, stores up grey chamber, and the slide plate is equipped with the exhaust fan being connected to the grey chamber of storage, the outlet air of the exhaust fan
Muzzle fills the cloth bag for collecting dust.
Further, dust non-proliferation mechanism includes the cover board being inclined on slide plate, and the cover board upper end is set
Have for sealing the sealing fur for storing up grey chamber.
Further, electric telescopic rod, vibrating motor, exhaust fan are connect with programmable controller.
Further, the scraper plate end is equipped with the abrasive rubber layer for scraping iron particle.
Further, the suction after the iron particle is adsorbed is greater 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 greater than iron particle to the pressure of fur.
Further, the slide plate both ends are respectively provided at least two idler wheels.
Further, the abrasive rubber layer is made of the raw material of following parts by weight, 50~70 parts of neoprene, butylbenzene rubber
20~25 parts of glue, 6~8 parts of magnesia, 8~10 parts of carbon black, 7~11 parts of paraffin, 3~6 parts of stearic acid, m-xylene diamine 6~8
Part.
A kind of control method of English teaching system that drawing four line lattice specifications, comprising the following steps:
1) iron particle for being coated with white coating is placed on iron particle accommodating chamber, programmable controller controls electromagnetism push rod work
Make, blackboard brush is pressed on blackboard, the electric telescopic rod work of programmable controller control at this time drives slide plate and blackboard brush upward
Mobile, blackboard brush is clean by blackboard-cleaning, and when iron particle encounters the magnet strip in blackboard, iron particle is adsorbed on black by magnet strip
Plate surface, electric telescopic rod continue that slide plate and blackboard brush is driven to move up, and the suction after being adsorbed due to iron particle is greater than soft
The bent radial power of hair, fur cannot brush off the iron particle on blackboard, blackboard eraser is moved to blackboard top after moving up
Afterwards, electric telescopic rod power supply is disconnected by programmable controller, 4 magnet strips absorption iron particle in blackboard forms four standards
Four line lattice；
2) when not needing four line lattice, programmable controller controls the work of electromagnetism push rod, blackboard brush is pressed on blackboard, so
Programmable controller control electric telescopic rod work 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 greater than the bent radial power of fur, and fur, cannot will be on blackboard after moving down
Iron particle brushes off, and after scraper plate is contacted with iron particle, scraper plate scrapes iron particle from blackboard, and iron particle falls in iron particle accommodating chamber
It is interior, it draws and uses convenient for next time, blackboard eraser is clean by blackboard-cleaning during moving down；
3) after blackboard eraser is moved to lower part, electric telescopic rod power supply, PLC technology are disconnected by programmable controller
Device controls electromagnetism push rod and disconnects power supply, and the spring in electromagnetism push rod, which retracts blackboard eraser, contacts blackboard brush with blackboard, can compile
Range controller controls vibrating motor work, and the dust on blackboard brush is shaken off to, programmable controller control exhausting intracavitary in storage ash
The intracavitary ash of storage ash is transported to dust settling pocket by machine work.
Compared with prior art, the beneficial effects of the present invention are: slide plate of the invention uses high intensity Q420 steel steel plate, electricity
Magnetic push rod, which is connected with slide rheostat, can control the thrust of electromagnetism push rod, and the thrust of electromagnetism push rod is not more than the deformation power of steel plate,
So as to the deformation of anti-limited slip plate, just face slide plate and blackboard contact gap are big, and iron particle leaks out or scraper plate cannot scrape iron particle
Under；The iron particle for being coated with white coating is placed on iron particle accommodating chamber, programmable controller controls the work of electromagnetism push rod, will be black
Scrubbing brush is pressed on blackboard, and the electric telescopic rod work of programmable controller control at this time drives slide plate and blackboard brush to move up, black
Scrubbing brush is clean by blackboard-cleaning, and when iron particle encounters the magnet strip in blackboard, iron particle is adsorbed on blackboard surface by magnet strip,
Electric telescopic rod continues that slide plate and blackboard brush is driven to move up, and the suction after being adsorbed due to iron particle is greater than the radial direction of fur
Iron particle on blackboard cannot be brushed off after moving up, after blackboard eraser is moved to blackboard top, be passed through by folding force, fur
Programmable controller disconnects electric telescopic rod power supply, and 4 magnet strips absorption iron particle in blackboard forms four lines of four standards
Lattice；When not needing four line lattice, programmable controller controls the work of electromagnetism push rod, and blackboard brush is pressed on blackboard, then can be compiled
Range controller controls electric telescopic rod work, and slide plate and blackboard brush is driven to move down, and fur is first contacted with iron particle, due to iron
Particle be adsorbed after suction be greater than fur bent radial power, fur, cannot be by the iron particle on blackboard after moving down
It brushes off, after scraper plate is contacted with iron particle, scraper plate scrapes iron particle from blackboard, and iron particle is fallen in iron particle accommodating chamber, just
It draws and uses next time, blackboard eraser is clean by blackboard-cleaning during moving down；After blackboard eraser is moved to lower part, pass through
Programmable controller disconnects electric telescopic rod power supply, and programmable controller controls electromagnetism push rod and disconnects power supply, in electromagnetism push rod
Spring, which retracts blackboard eraser, contacts blackboard brush with blackboard, and programmable controller controls vibrating motor work, will be on blackboard brush
Dust shake off intracavitary in storage ash, the intracavitary ash of storage ash is transported to dust settling pocket by the work of programmable controller control exhaust fan.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is schematic cross-sectional view of the invention；
Fig. 3 is the enlarged structure schematic diagram in Fig. 2 at A；
Fig. 4 is the attachment structure schematic diagram of blackboard brush and slide plate；
Fig. 5 is guiding mechanism structural schematic diagram of the invention；
Fig. 6 is skateboard schematic diagram of the invention.
Specific embodiment
Embodiment 1: as shown in Fig. 1,2,3,4,5,6, a kind of English teaching system for drawing four line lattice specifications, including setting
Several magnet strips 9 in blackboard and the sliding rail 1 that 3 left and right ends of blackboard are arranged in, the interior setting of the sliding rail is with idler wheel 2
Slide plate 7 is equipped with scraper plate on the upside of the slide plate 7, is equipped with bottom plate 24 on the downside of the slide plate 7, the bottom plate 24 contacted with blackboard one
End is equipped with fur 25, and 7 both ends of slide plate are equipped with baffle, and the baffle, bottom plate 24, scraper plate 18 form iron after contacting with blackboard
Grain accommodating chamber 19, the interior iron particle 20 that white coating is coated with equipped with several peripheries of iron particle accommodating chamber, the blackboard top is set
There is the driving mechanism for driving slide plate to move up and down, the slide plate is equipped with blackboard-cleaning mechanism, the blackboard-cleaning mechanism
Vibration dust-collection mechanism is connected, the vibration dust-collection mechanism is equipped with dust non-proliferation mechanism.
The driving mechanism includes that the electric telescopic rod 4 on blackboard top is arranged in, the free end of the electric telescopic rod with
Slide plate 7 connects.
The blackboard-cleaning mechanism includes slide plate top electromagnetism push rod 14 being arranged in and positioned at the black of electromagnetism push rod free end
Scrubbing brush 12 is equipped with several guiding mechanisms 8 between the blackboard brush 12 and slide plate 7.
The guiding mechanism 8 includes the guide cylinder 23 that is arranged on slide plate 7 and is arranged on blackboard brush and protrudes into guide cylinder
Guide rod 22.Play the role of righting-oriented blackboard brush, prevent blackboard brush from tilting, to ensure that blackboard brush wiping is stablized.
The vibration dust-collection mechanism includes the vibrating motor 11 being arranged on blackboard brush, the slide plate 7, scraper plate 18, slide plate
The baffle of two sides, which is constituted, stores up grey chamber 13, and the slide plate is equipped with the exhaust fan 16 being connected to the grey chamber of storage, and the exhaust fan 16 goes out
Air port is set with the cloth bag 17 for collecting dust.
Dust non-proliferation mechanism includes the cover board 26 being inclined on slide plate, and the cover board upper end is equipped with for close
Envelope stores up the sealing fur 27 of grey chamber.
Electric telescopic rod, vibrating motor, exhaust fan are connect with programmable controller, can be grasped at a distance by controller
Make.
18 end of scraper plate is equipped with the abrasive rubber layer 15 for scraping iron particle, and rubber layer soft wear resistant will not
Blackboard is scratched.
The slide plate both ends are respectively provided with two idler wheels.
The magnet strip surface is 1mm at a distance from blackboard surface.
A kind of control method of English teaching system that drawing four line lattice specifications, comprising the following steps:
1) iron particle for being coated with white coating is placed on iron particle accommodating chamber, programmable controller controls electromagnetism push rod work
Make, blackboard brush is pressed on blackboard, the electric telescopic rod work of programmable controller control at this time drives slide plate and blackboard brush upward
Mobile, blackboard brush is clean by blackboard-cleaning, and when iron particle encounters the magnet strip in blackboard, iron particle is adsorbed on black by magnet strip
Plate surface, electric telescopic rod continue that slide plate and blackboard brush is driven to move up, and the suction after being adsorbed due to iron particle is greater than soft
The bent radial power of hair, fur cannot brush off the iron particle on blackboard, blackboard eraser is moved to blackboard top after moving up
Afterwards, electric telescopic rod power supply is disconnected by programmable controller, 4 magnet strips absorption iron particle in blackboard forms four standards
Four line lattice；
2) when not needing four line lattice, programmable controller controls the work of electromagnetism push rod, blackboard brush is pressed on blackboard, so
Programmable controller control electric telescopic rod work 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 greater than the bent radial power of fur, and fur, cannot will be on blackboard after moving down
Iron particle brushes off, and after scraper plate is contacted with iron particle, scraper plate scrapes iron particle from blackboard, and iron particle falls in iron particle accommodating chamber
It is interior, it draws and uses convenient for next time, blackboard eraser is clean by blackboard-cleaning during moving down；
3) after blackboard eraser is moved to lower part, electric telescopic rod power supply, PLC technology are disconnected by programmable controller
Device controls electromagnetism push rod and disconnects power supply, and the spring in electromagnetism push rod, which retracts blackboard eraser, contacts blackboard brush with blackboard, can compile
Range controller controls vibrating motor work, and the dust on blackboard brush is shaken off to, programmable controller control exhausting intracavitary in storage ash
The intracavitary ash of storage ash is transported to dust settling pocket by machine work.
Embodiment 2 the difference from embodiment 1 is that: the iron particle 20 be adsorbed after suction be greater than fur 25 radial direction
Folding force, after iron particle is placed on iron particle accommodating chamber, the bent radial power of fur 25 is greater than iron particle to the pressure of fur 25.
The abrasive rubber layer is made of the raw material of following parts by weight, 50 parts of neoprene, 20 parts of butadiene-styrene rubber, magnesia
6 parts, 8 parts of carbon black, 7 parts of paraffin, 3 parts of stearic acid, 6 parts of m-xylene diamine.
Embodiment 3 the difference from embodiment 1 is that: the blackboard has collecting tank 10, for preventing chalk or collection
The iron particle fallen individually.The abrasive rubber layer is made of the raw material of following parts by weight, 70 parts of neoprene, butadiene-styrene rubber 25
Part, 8 parts of magnesia, 10 parts of carbon black, 11 parts of paraffin, 6 parts of stearic acid, 8 parts of m-xylene diamine.
Embodiment 4 the difference from embodiment 1 is that: the bottom plate 24 be equipped with sloping baffle 21, convenient for iron particle with it is black
Plate contact.The abrasive rubber layer is made of the raw material of following parts by weight, 60 parts of neoprene, 23 parts of butadiene-styrene rubber, magnesia 7
Part, 9 parts of carbon black, 10 parts of paraffin, 4.5 parts of stearic acid, 7 parts of m-xylene diamine.
Embodiment 2,3,4 uses Special wear-resistant rubber of the invention, and pliability is good, and wear-resisting, pliability and wearability
It can complement each other, reach good state, one side abrasive rubber can scrape iron particle, the work of another aspect rubber layer
When surface ooze out silicone oil, help frictional contact surface lubrication, to extend the service life of rubber layer, more importantly will not grind
Damage blackboard.It is tested by invention, is 2 times of the prior art using abrasive rubber service life of the invention, and used 6 months
Afterwards, using rubber layer of the invention a little all without abrasion blackboard, and rubber layer is also without damage, and uses the rubber of the prior art
Layer has been worn substantially, and blackboard scratch is serious.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (6)
1. a kind of English teaching system for drawing four line lattice specifications, it is characterised in that: including several magnetic being arranged in blackboard
Iron bar and the sliding rail that blackboard left and right ends are arranged in, the interior setting of the sliding rail have the slide plate of idler wheel, are equipped on the upside of the slide plate
Scraper plate, the slide plate downside are equipped with bottom plate, and one end that the bottom plate is contacted with blackboard is equipped with fur, and the slide plate both ends are equipped with gear
Plate, the baffle, bottom plate, scraper plate form iron particle accommodating chamber, are equipped with outside several in iron particle accommodating chamber after contacting with blackboard
It is coated with the iron particle of white coating week, the blackboard top is equipped with the driving mechanism for driving slide plate to move up and down, the cunning
Plate is equipped with blackboard-cleaning mechanism, and the blackboard-cleaning mechanism connects vibration dust-collection mechanism, and the vibration dust-collection mechanism is equipped with
Dust non-proliferation mechanism, the driving mechanism include that the electric telescopic rod on blackboard top is arranged in, the electric telescopic rod from
It is connect by holding with slide plate, the blackboard-cleaning mechanism includes that the electromagnetism push rod on slide plate top is arranged in and is located at electromagnetism push rod certainly
By the blackboard brush held, several guiding mechanisms are equipped between the blackboard brush and slide plate, the guiding mechanism includes being arranged in slide plate
On guide cylinder and the guide rod that guide cylinder is protruded on blackboard brush is set, the vibration dust-collection mechanism includes being arranged in blackboard brush
On vibrating motor, the slide plate, scraper plate, slide plate two sides baffle constitute and store up grey chamber, the slide plate is equipped with and stores up grey chamber and connects
Logical exhaust fan, the air outlet of the exhaust fan are set with the cloth bag for collecting dust, and the blackboard has collecting tank, described
Magnet strip surface is 1mm at a distance from blackboard surface.
2. drawing the English teaching system of four line lattice specifications as described in claim 1, it is characterised in that: the dust non-proliferation
Mechanism includes the cover board being inclined on slide plate, and the cover board upper end is equipped with for sealing the sealing fur for storing up grey chamber.
3. drawing the English teaching system of four line lattice specifications as claimed in claim 2, it is characterised in that: electric telescopic rod, vibration
Dynamic motor, exhaust fan are connect with programmable controller.
4. drawing the English teaching system of four line lattice specifications as claimed in claim 3, it is characterised in that: the scraper plate end is set
There is the abrasive rubber layer for scraping iron particle.
5. drawing the English teaching system of four line lattice specifications as claimed in claim 4, it is characterised in that: the abrasive rubber layer
It is made of the raw material of following parts by weight, 50~70 parts of neoprene, 20~25 parts of butadiene-styrene rubber, 6~8 parts of magnesia, carbon black 8~
10 parts, 7~11 parts of paraffin, 3~6 parts of stearic acid, 6~8 parts of m-xylene diamine.
6. a kind of control method of the English teaching system according to any one of claims 1 to 5 for drawing four line lattice specifications,
It is characterized by:
1) iron particle for being coated with white coating being placed on iron particle accommodating chamber, programmable controller controls the work of electromagnetism push rod,
Blackboard brush is pressed on blackboard, the electric telescopic rod work of programmable controller control at this time, drives slide plate and blackboard brush to moving up
Dynamic, blackboard brush is clean by blackboard-cleaning, and when iron particle encounters the magnet strip in blackboard, iron particle is adsorbed on blackboard by magnet strip
Surface, electric telescopic rod continue that slide plate and blackboard brush is driven to move up, and the suction after being adsorbed due to iron particle is greater than fur
Bent radial power, fur cannot brush off the iron particle on blackboard, blackboard eraser is moved to blackboard top after moving up
Afterwards, electric telescopic rod power supply is disconnected by programmable controller, 4 magnet strips absorption iron particle in blackboard forms four standards
Four line lattice；
2) when not needing four line lattice, programmable controller controls the work of electromagnetism push rod, and blackboard brush is pressed on blackboard, then may be used
Programmable controller controls electric telescopic rod work, and slide plate and blackboard brush is driven to move down, and fur is first contacted with iron particle, due to
Iron particle be adsorbed after suction be greater than fur bent radial power, fur, cannot be by the iron on blackboard after moving down
Grain brushes off, and after scraper plate is contacted with iron particle, scraper plate scrapes iron particle from blackboard, and iron particle is fallen in iron particle accommodating chamber,
It draws and uses convenient for next time, blackboard eraser is clean by blackboard-cleaning during moving down；
3) after blackboard eraser is moved to lower part, electric telescopic rod power supply, programmable controller control are disconnected by programmable controller
Electromagnetism push rod processed disconnects power supply, and the spring in electromagnetism push rod, which retracts blackboard eraser, contacts blackboard brush with blackboard, programmable control
Dust on blackboard brush is shaken off, programmable controller control exhaust fan work intracavitary in storage ash by device control vibrating motor work processed
Make the intracavitary ash of storage ash being transported to dust settling pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646808.0A CN107471876B (en) | 2016-04-25 | 2016-04-25 | A kind of English teaching system for drawing four line lattice specifications |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646808.0A CN107471876B (en) | 2016-04-25 | 2016-04-25 | A kind of English teaching system for drawing four line lattice specifications |
| CN201610260645.8A CN105691065B (en) | 2016-04-25 | 2016-04-25 | A kind of dustless English teaching system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610260645.8A Division CN105691065B (en) | 2016-04-25 | 2016-04-25 | A kind of dustless English teaching system |
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| Publication Number | Publication Date |
|---|---|
| CN107471876A CN107471876A (en) | 2017-12-15 |
| CN107471876B true CN107471876B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710646808.0A Expired - Fee Related CN107471876B (en) | 2016-04-25 | 2016-04-25 | A kind of English teaching system for drawing four line lattice specifications |
| CN201610260645.8A Expired - Fee Related CN105691065B (en) | 2016-04-25 | 2016-04-25 | A kind of dustless English teaching system |
| CN201710647516.9A Expired - Fee Related CN107458121B (en) | 2016-04-25 | 2016-04-25 | A kind of stable English teaching system for being conducive to teachers and students' health |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610260645.8A Expired - Fee Related CN105691065B (en) | 2016-04-25 | 2016-04-25 | A kind of dustless English teaching system |
| CN201710647516.9A Expired - Fee Related CN107458121B (en) | 2016-04-25 | 2016-04-25 | A kind of stable English teaching system for being conducive to teachers and students' health |
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| CN (3) | CN107471876B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297977A (en) * | 2017-08-04 | 2017-10-27 | 丁玉清 | A kind of blackboard of children education |
| CN108859510A (en) * | 2018-03-07 | 2018-11-23 | 袁静 | A kind of blackboard of the teaching convenient for adjusting |
| CN109184245B (en) * | 2018-09-04 | 2021-10-01 | 湖南乐宇安洋科技有限公司 | Paint scraping equipment and scraping method thereof |
| CN109118845A (en) * | 2018-10-15 | 2019-01-01 | 常州轻工职业技术学院 | A kind of device improving pronunciation of English quality with tactile |
| CN109363400A (en) * | 2018-12-21 | 2019-02-22 | 张艺凡 | A kind of teaching demonstration device |
| CN109733097A (en) * | 2019-01-31 | 2019-05-10 | 中国地质大学（武汉） | A kind of novel convenient movable blackboard deashing device of chalk dust removing formula |
| CN112622490B (en) * | 2020-12-29 | 2022-12-06 | 重庆工业职业技术学院 | Anti-reflection device for education and teaching |
| CN112622491B (en) * | 2020-12-29 | 2022-12-06 | 重庆工业职业技术学院 | Education and teaching presses down dirt system with environmental protection |
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- 2016-04-25 CN CN201710646808.0A patent/CN107471876B/en not_active Expired - Fee Related
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- 2016-04-25 CN CN201710647516.9A patent/CN107458121B/en not_active Expired - Fee Related
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| CN2075593U (en) * | 1990-09-25 | 1991-04-24 | 邹武昌 | Non steel made blackboard convenient for map hanging |
| CN201026750Y (en) * | 2007-02-15 | 2008-02-27 | 沈昌生 | Blackboard with magnetic plaster coordinates |
| CN202563750U (en) * | 2012-05-16 | 2012-11-28 | 张延芝 | English teaching demonstration board |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107458121A (en) | 2017-12-12 |
| CN107458121B (en) | 2019-04-26 |
| CN107471876A (en) | 2017-12-15 |
| CN105691065A (en) | 2016-06-22 |
| CN105691065B (en) | 2017-08-25 |
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