CN110211452A - A kind of chemical equation teaching demonstration frame - Google Patents
A kind of chemical equation teaching demonstration frame Download PDFInfo
- Publication number
- CN110211452A CN110211452A CN201910416929.5A CN201910416929A CN110211452A CN 110211452 A CN110211452 A CN 110211452A CN 201910416929 A CN201910416929 A CN 201910416929A CN 110211452 A CN110211452 A CN 110211452A
- Authority
- CN
- China
- Prior art keywords
- plate
- clipboard
- chemical equation
- teaching demonstration
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
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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
Abstract
The present invention relates to a kind of equation teaching demonstration frame more particularly to a kind of chemical equation teaching demonstration framves.Technical problems to be solved: a kind of chemical equation teaching demonstration frame that can conveniently compare, can reduce workload is provided.Technical solution is: a kind of chemical equation teaching demonstration frame includes pedestal, supporting plate, connecting plate, bearing block, shaft, clipboard etc.；Be mounted on supporting plate at left and right sides of base top, between the two supporting plate medial surfaces in left and right up and down two be provided with connecting plate, the medial surface of upper and lower two connecting plates is all connected with that there are four bearing blocks.The present invention can be fixed clipboard by fixed device, can so teacher be facilitated to write chemical equation on clipboard, teacher can be facilitated to wipe the chemical equation on clipboard by wiping arrangement, so as to facilitate teacher to compare chemical equation, and it can reduce the workload of teacher.
Description
Technical field
The present invention relates to a kind of equation teaching demonstration frame more particularly to a kind of chemical equation teaching demonstration framves.
Background technique
In Chemistry Courses, one of them are chemical equation explanations, and have some chemical equations to generate
Substance be it is identical, so teacher is just needed to explain and compare student, at present teacher to chemical equation carry out
When explanation, usually chemical equation is write on the blackboard, is so not easy to carry out the comparison of chemical equation, and
It after comparison, needs to wipe the chemical equation on blackboard, since blackboard eraser is smaller, so will increase the work of teacher
Amount for convenience compares chemical equation, and chemical equation can be write on respectively the difference of blackboard by teacher
Position, but a large amount of chalk dust that while erasing the board can generate.
Summary of the invention
Chemical equation is write on the blackboard in order to overcome, is so not easy to carry out pair of chemical equation
Than blackboard eraser is smaller, the shortcomings that so will increase the workload that teacher wipes blackboard, technical problems to be solved: provides one kind
It can conveniently compare, can reduce the chemical equation teaching demonstration frame of workload.
Technical solution is: a kind of chemical equation teaching demonstration frame includes pedestal, supporting plate, connecting plate, bearing
Seat, clipboard, fixes device and wiping arrangement at shaft, and supporting plate, two supporting plates in left and right are mounted at left and right sides of base top
Between medial surface up and down two be provided with connecting plate, the medial surface of upper and lower two connecting plates is all connected with there are four bearing block,
The shaft that clipboard can be made to rotate is installed, chemical equation can be write by being equipped in shaft between upper and lower two bearing blocks
Clipboard, there are four the fixation devices that can be limited to clipboard for installation on upper side connecting plate, can be anti-to the chemistry on clipboard
The wiping arrangement for answering equation to wipe is mounted on the leading flank of two supporting plates in left and right.
Further, fixed device includes snap-gauge, spill guide rod, notch plate and spring, the left and right two at the top of clipboard
Side is respectively connected with snap-gauge, eight pilot holes is provided on upper side connecting plate, slidingtype is equipped between the two adjacent pilot holes in left and right
Spill guide rod, the left and right ends of spill guide rod bottom are respectively and fixedly provided with notch plate, and notch plate and snap-gauge cooperate, the left and right of spill guide rod
Two sides are wound with spring, and the top of spring and the bottom of upper side connecting plate are affixed, and the bottom end of spring and the top of notch plate are connected.
Further, wiping arrangement includes guide rod, guide sleeve, limited block, oscillating rod, wiping block, screw bolt and nut, branch
The leading flank of plate is provided with guide rod, and slidingtype is equipped with guide sleeve on guide rod, and the leading flank of guide sleeve is provided with limited block, and left side is led
The leading flank rotary type of set is connected with oscillating rod, and the two sides up and down of oscillating rod are provided with jack, is equipped with bolt in jack, and upper and lower two
The wiping block of erasable chemical equation is fixed between the rear end of a bolt, the front end of bolt passes through jack, bolt
Front side is equipped with nut that can be fixed to wiping block.
Further, further include having pulley, bracing wire and weight, pulley is installed at the top of supporting plate, the top of guide sleeve is affixed
There is bracing wire, bracing wire bypasses pulley, is fixed with weight between the bottom end of two bracing wires in left and right.
Further, further include having guide plate and sliding axle, be fixed between the middle part of upper and lower two connecting plate trailing flanks
Guide plate is provided with and can be located in a word hole to a word hole of sliding axle mobile guide, sliding axle slidingtype on guide plate, sliding axle
Rear end and weight leading flank middle part it is affixed.
Further, further include having support plate, placement plate and collection frame, be provided with through-hole on lower side connecting plate, it can be to chalk
It is respectively connected with placement plate at left and right sides of the collection frame bottom of ash storage, collection frame is located at the downside of through-hole, the bottom of placement plate
It is fixed with support plate, the bottom of support plate is contacted with the bottom in pedestal.
Beneficial effects of the present invention: the present invention can be fixed clipboard by fixed device, can so facilitate
Teacher writes chemical equation on clipboard, teacher can be facilitated to the chemical reaction on clipboard by wiping arrangement
Equation erasing, so as to facilitate teacher to compare chemical equation, and can reduce the workload of teacher；?
Oscillating rod can be made to move up reset under the action of weight gravity, and pass through the cooperation of sliding axle and a word hole, can be prevented
Weight, which is tilted, brings obstruction to text erasing；It can be facilitated by collection frame and chalk dust is collected and is handled.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is the schematic view of the front view of the fixed device of the present invention.
Fig. 3 is the partial structure diagram of wiping arrangement of the present invention.
Drawing reference numeral: 1 pedestal, 2 supporting plates, 3 connecting plates, 4 bearing blocks, 5 shafts, 6 clipboards, 7 fixed devices,
71 snap-gauges, 72 pilot holes, 73 spill guide rods, 74 notch plates, 75 springs, 8 wiping arrangements, 81 guide rods, 82 guide sleeves,
83 limited blocks, 84 oscillating rods, 85 wiping blocks, 86 jacks, 87 bolts, 88 nuts, 9 pulleys, 10 bracing wires, 11 weights,
12 guide plates, 13 1 word holes, 14 sliding axles, 15 through-holes, 16 support plates, 17 placement plates, 18 collection frames.
Specific embodiment
The present invention is specifically described with reference to the accompanying drawing.
Embodiment 1
A kind of chemical equation teaching demonstration frame, as shown in Figure 1-3, include pedestal 1, supporting plate 2, connecting plate 3, bearing block
4, the left and right sides of shaft 5, clipboard 6, fixed device 7 and wiping arrangement 8,1 top of pedestal is mounted on supporting plate 2, and pedestal 1 is logical
Bolted mode is crossed to connect with supporting plate 2, left and right two 2 medial surfaces of supporting plate between up and down two be provided with connecting plate 3,
Supporting plate 2 is connect with connecting plate 3 by bolted connection, and the medial surface of upper and lower two connecting plates 3 is all connected with there are four bearing
Seat 4, is equipped with the shaft 5 that clipboard 6 can be made to rotate between upper and lower two bearing blocks 4, shaft 5 in such a way that interference connects with
Bearing connection in bearing block 4, is equipped with the clipboard 6 that can write chemical equation in shaft 5, on upper side connecting plate 3
Installation is there are four the fixation device 7 that can be limited to clipboard 6, the wiping that can be wiped the chemical equation on clipboard 6
Device 8 is mounted on the leading flank of two supporting plates 2 in left and right.
Embodiment 2
A kind of chemical equation teaching demonstration frame, as shown in Figure 1-3, include pedestal 1, supporting plate 2, connecting plate 3, bearing block
4, the left and right sides of shaft 5, clipboard 6, fixed device 7 and wiping arrangement 8,1 top of pedestal is mounted on supporting plate 2, left and right two
Between a 2 medial surface of supporting plate up and down two be provided with connecting plate 3, the medial surface of upper and lower two connecting plates 3 is respectively connected with four
A bearing block 4 is equipped with the shaft 5 that clipboard 6 can be made to rotate between upper and lower two bearing blocks 4, is equipped with and can write in shaft 5
The clipboard 6 of chemical equation, installation, can there are four the fixation device 7 that can be limited to clipboard 6 on upper side connecting plate 3
The leading flank of two supporting plates 2 in left and right is mounted on to the wiping arrangement 8 of the chemical equation erasing on clipboard 6.
Fixed device 7 includes snap-gauge 71, spill guide rod 73, notch plate 74 and spring 75, the left and right two at 6 top of clipboard
Side is respectively connected with snap-gauge 71, and clipboard 6 is connect by way of welded connecting with snap-gauge 71, is provided with eight on upper side connecting plate 3
Pilot hole 72, slidingtype is equipped with spill guide rod 73, the left and right of 73 bottom of spill guide rod between the two adjacent pilot holes 72 in left and right
Both ends are respectively and fixedly provided with notch plate 74, and spill guide rod 73 is connect by way of welded connecting with notch plate 74, notch plate 74 and card
Plate 71 cooperates, and the left and right sides of spill guide rod 73 is wound with spring 75, and the top of spring 75 and the bottom of upper side connecting plate 3 are solid
It connects, the bottom end of spring 75 and the top of notch plate 74 are connected.
Embodiment 3
A kind of chemical equation teaching demonstration frame, as shown in Figure 1-3, include pedestal 1, supporting plate 2, connecting plate 3, bearing block
4, the left and right sides of shaft 5, clipboard 6, fixed device 7 and wiping arrangement 8,1 top of pedestal is mounted on supporting plate 2, left and right two
Between a 2 medial surface of supporting plate up and down two be provided with connecting plate 3, the medial surface of upper and lower two connecting plates 3 is respectively connected with four
A bearing block 4 is equipped with the shaft 5 that clipboard 6 can be made to rotate between upper and lower two bearing blocks 4, is equipped with and can write in shaft 5
The clipboard 6 of chemical equation, installation, can there are four the fixation device 7 that can be limited to clipboard 6 on upper side connecting plate 3
The leading flank of two supporting plates 2 in left and right is mounted on to the wiping arrangement 8 of the chemical equation erasing on clipboard 6.
Fixed device 7 includes snap-gauge 71, spill guide rod 73, notch plate 74 and spring 75, the left and right two at 6 top of clipboard
Side is respectively connected with snap-gauge 71, and eight pilot holes 72 are provided on upper side connecting plate 3, are slided between the two adjacent pilot holes 72 in left and right
Formula is equipped with spill guide rod 73, and the left and right ends of 73 bottom of spill guide rod are respectively and fixedly provided with notch plate 74, and notch plate 74 is matched with snap-gauge 71
It closes, the left and right sides of spill guide rod 73 is wound with spring 75, and the top of spring 75 and the bottom of upper side connecting plate 3 are affixed, spring
75 bottom end and the top of notch plate 74 are connected.
Wiping arrangement 8 includes guide rod 81, guide sleeve 82, limited block 83, oscillating rod 84, wiping block 85, bolt 87 and spiral shell
Mother 88, the leading flank of supporting plate 2 is provided with guide rod 81, and supporting plate 2 is connect by way of welded connecting with guide rod 81, guide rod
Slidingtype is equipped with guide sleeve 82 on 81, and the leading flank of guide sleeve 82 is provided with limited block 83, guide sleeve 82 by way of welded connecting with
Limited block 83 connects, and the leading flank rotary type of left side guide sleeve 82 is connected with oscillating rod 84, and the two sides up and down of oscillating rod 84 are provided with
Jack 86, jack 86 is interior to be equipped with bolt 87, is fixed with erasable chemical equation between the rear end of upper and lower two bolts 87
Wiping block 85, the front end of bolt 87 passes through jack 86, and the front side of bolt 87 is equipped with nut 88 that can be fixed to wiping block 85.
Embodiment 4
A kind of chemical equation teaching demonstration frame, as shown in Figure 1-3, include pedestal 1, supporting plate 2, connecting plate 3, bearing block
4, the left and right sides of shaft 5, clipboard 6, fixed device 7 and wiping arrangement 8,1 top of pedestal is mounted on supporting plate 2, left and right two
Between a 2 medial surface of supporting plate up and down two be provided with connecting plate 3, the medial surface of upper and lower two connecting plates 3 is respectively connected with four
A bearing block 4 is equipped with the shaft 5 that clipboard 6 can be made to rotate between upper and lower two bearing blocks 4, is equipped with and can write in shaft 5
The clipboard 6 of chemical equation, installation, can there are four the fixation device 7 that can be limited to clipboard 6 on upper side connecting plate 3
The leading flank of two supporting plates 2 in left and right is mounted on to the wiping arrangement 8 of the chemical equation erasing on clipboard 6.
Fixed device 7 includes snap-gauge 71, spill guide rod 73, notch plate 74 and spring 75, the left and right two at 6 top of clipboard
Side is respectively connected with snap-gauge 71, and eight pilot holes 72 are provided on upper side connecting plate 3, are slided between the two adjacent pilot holes 72 in left and right
Formula is equipped with spill guide rod 73, and the left and right ends of 73 bottom of spill guide rod are respectively and fixedly provided with notch plate 74, and notch plate 74 is matched with snap-gauge 71
It closes, the left and right sides of spill guide rod 73 is wound with spring 75, and the top of spring 75 and the bottom of upper side connecting plate 3 are affixed, spring
75 bottom end and the top of notch plate 74 are connected.
Wiping arrangement 8 includes guide rod 81, guide sleeve 82, limited block 83, oscillating rod 84, wiping block 85, bolt 87 and spiral shell
Mother 88, the leading flank of supporting plate 2 is provided with guide rod 81, and slidingtype is equipped with guide sleeve 82 on guide rod 81, and the leading flank of guide sleeve 82 is set
It is equipped with limited block 83, the leading flank rotary type of left side guide sleeve 82 is connected with oscillating rod 84, and the two sides up and down of oscillating rod 84 are provided with
Jack 86, jack 86 is interior to be equipped with bolt 87, is fixed with erasable chemical equation between the rear end of upper and lower two bolts 87
Wiping block 85, the front end of bolt 87 passes through jack 86, and the front side of bolt 87 is equipped with nut 88 that can be fixed to wiping block 85.
It further include having pulley 9, bracing wire 10 and weight 11, the top of supporting plate 2 is equipped with pulley 9, and supporting plate 2 is bolted
Mode connect with pulley 9, the top of guide sleeve 82 is connected with bracing wire 10, and bracing wire 10 bypasses pulley 9, the bottom of two bracing wires 10 in left and right
Weight 11 is fixed between end.
Embodiment 5
A kind of chemical equation teaching demonstration frame, as shown in Figure 1-3, include pedestal 1, supporting plate 2, connecting plate 3, bearing block
4, the left and right sides of shaft 5, clipboard 6, fixed device 7 and wiping arrangement 8,1 top of pedestal is mounted on supporting plate 2, left and right two
Between a 2 medial surface of supporting plate up and down two be provided with connecting plate 3, the medial surface of upper and lower two connecting plates 3 is respectively connected with four
A bearing block 4 is equipped with the shaft 5 that clipboard 6 can be made to rotate between upper and lower two bearing blocks 4, is equipped with and can write in shaft 5
The clipboard 6 of chemical equation, installation, can there are four the fixation device 7 that can be limited to clipboard 6 on upper side connecting plate 3
The leading flank of two supporting plates 2 in left and right is mounted on to the wiping arrangement 8 of the chemical equation erasing on clipboard 6.
Fixed device 7 includes snap-gauge 71, spill guide rod 73, notch plate 74 and spring 75, the left and right two at 6 top of clipboard
Side is respectively connected with snap-gauge 71, and eight pilot holes 72 are provided on upper side connecting plate 3, are slided between the two adjacent pilot holes 72 in left and right
Formula is equipped with spill guide rod 73, and the left and right ends of 73 bottom of spill guide rod are respectively and fixedly provided with notch plate 74, and notch plate 74 is matched with snap-gauge 71
It closes, the left and right sides of spill guide rod 73 is wound with spring 75, and the top of spring 75 and the bottom of upper side connecting plate 3 are affixed, spring
75 bottom end and the top of notch plate 74 are connected.
Wiping arrangement 8 includes guide rod 81, guide sleeve 82, limited block 83, oscillating rod 84, wiping block 85, bolt 87 and spiral shell
Mother 88, the leading flank of supporting plate 2 is provided with guide rod 81, and slidingtype is equipped with guide sleeve 82 on guide rod 81, and the leading flank of guide sleeve 82 is set
It is equipped with limited block 83, the leading flank rotary type of left side guide sleeve 82 is connected with oscillating rod 84, and the two sides up and down of oscillating rod 84 are provided with
Jack 86, jack 86 is interior to be equipped with bolt 87, is fixed with erasable chemical equation between the rear end of upper and lower two bolts 87
Wiping block 85, the front end of bolt 87 passes through jack 86, and the front side of bolt 87 is equipped with nut 88 that can be fixed to wiping block 85.
It further include having pulley 9, bracing wire 10 and weight 11, the top of supporting plate 2 is equipped with pulley 9, and the top of guide sleeve 82 is affixed
There is bracing wire 10, bracing wire 10 bypasses pulley 9, is fixed with weight 11 between the bottom end of two bracing wires 10 in left and right.
Further include having guide plate 12 and sliding axle 14, is fixed with guiding between the middle part of 3 trailing flank of upper and lower two connecting plates
Plate 12 is provided with and can be located at a word hole 13 to a word hole 13 of 14 mobile guide of sliding axle, 14 slidingtype of sliding axle on guide plate 12
Interior, the rear end of sliding axle 14 and the middle part of 11 leading flank of weight are affixed.
Further include having support plate 16, placement plate 17 and collection frame 18, is provided with through-hole 15 on lower side connecting plate 3, it can be to chalk
Be respectively connected with placement plate 17 at left and right sides of 18 bottom of collection frame of ash storage, collection frame 18 by way of welded connecting with put
The connection of plate 17 is set, collection frame 18 is located at the downside of through-hole 15, and the bottom of placement plate 17 is fixed with support plate 16, and placement plate 17 passes through
Bolted mode is connect with support plate 16, and the bottom of support plate 16 is contacted with the bottom in pedestal 1.
In use, teacher writes on different Chemical Problems on four clipboards 6 respectively with chalk, subsequent teacher passes through solid
Determine fixation of the releasing of device 7 to clipboard 6, then teacher rotates 6180 degree of clipboard, so can be by the another side of clipboard 6
It turns over, while teacher passes through fixed device 7 and clipboard 6 is fixed, subsequent teacher writes chemical equation respectively
On corresponding clipboard 6, then teacher carries out explanation chemical equation to student, when chemical equation is explained
After the completion, teacher wipes the chemical equation on clipboard 6 by wiping arrangement 8, and subsequent teacher passes through fixation
Device 7 releases the fixation to clipboard 6, and rotates 6180 degree of clipboard, then fixed to clipboard 6 by fixed device 7, always
Teacher passes through wiping arrangement 8 again and wipes text on clipboard 6, can so facilitate and use upper class hour next time, and
It can facilitate and the text of chalk-writing is wiped, so as to reduce the workload of teacher.
When needing to rotate clipboard 6, teacher pulls up spill guide rod 73, and spill guide rod 73 moves up drive spill
Plate 74 moves up, and spring 75 compresses therewith, and notch plate 74 moves up the fixation released to snap-gauge 71, and subsequent teacher rotates book
6180 degree of plate are write, then teacher unclamps spill guide rod 73, notch plate 74 can be made to move down under the action of 75 elastic force of spring
It is fixed to snap-gauge 71, so teacher can be facilitated to write on chemical equation on clipboard 6.
When needing to wipe the text on clipboard 6, teacher rotates clockwise oscillating rod 84, and oscillating rod 84 is made to be located at a left side
On right two limited blocks 83, subsequent teacher moves down oscillating rod 84, and oscillating rod 84, which moves down, drives guide sleeve 82 in guide rod
It is moved down on 81, oscillating rod 84, which moves downwards through bolt 87, can be such that wiping block 85 moves down, and wiping block 85 is to moving down
The enough texts by clipboard 6 of kinetic energy are wiped, and after the text on clipboard 6 is wiped, teacher resets oscillating rod 84, work as wiping
When the damage of block 85 is replaced, teacher backs out nut 88 from bolt 87, and subsequent teacher moves backward the wiping of damage
Block 85 makes bolt 87 remove jack 86, and then teacher replaces the wiping block 85 of damage, and bolt 87 is inserted into jack 86
Interior, nut 88 is screwed on bolt 87 by teacher again, so wiping block 85 can be fixed, so as to facilitate teacher to damage
Bad wiping block 85 is replaced.
Guide sleeve 82 moves downwards through bracing wire 10 on guide rod 81 can be such that weight 11 moves up, when wiping block 85 to
By after the text erasing on clipboard 6, teacher unclamps oscillating rod 84, can make to swing under the action of 11 gravity of weight for lower movement
Bar 84 moves up reset, and wiping block 85 moves up therewith, can so wipe again to clipboard 6, so as to
Enough make the surface of clipboard 6 cleaner and tidier, after oscillating rod 84 moves up reset, teacher rotates counterclockwise oscillating rod 84 multiple
Position.
By the cooperation of sliding axle 14 and a word hole 13, weight 11 can be moved up and down and be oriented to, can so prevented
Only weight 11 tilts when moving, on clipboard 6 text erasing make troubles, and can more convenient teacher to chalk dust
It is wiped.
Wiping block 85, which moves down, to wipe the text on clipboard 6, and the chalk dust after wiping passes through downwards therewith
Through-hole 15 is fallen in collection frame 18, can so chalk dust be prevented to be scattered everywhere, when need to the chalk dust in collection frame 18 into
When row processing, collection frame 18 is taken away from pedestal 1 and is handled chalk dust by teacher, after the completion of chalk dust processing, teacher
Collection frame 18 is resetted.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (6)
1. a kind of chemical equation teaching demonstration frame includes pedestal, supporting plate and connecting plate, the left and right sides of base top
Be mounted on supporting plate, between the two supporting plate medial surfaces in left and right up and down two be provided with connecting plate, which is characterized in that further include
There are bearing block, shaft, clipboard, fixed device and a wiping arrangement, the medial surface of upper and lower two connecting plates is all connected with that there are four axis
Seat is held, the shaft that clipboard can be made to rotate is installed, chemical reaction can be write by being equipped in shaft between upper and lower two bearing blocks
The clipboard of equation, installation, can be on clipboard there are four the fixation device that can be limited to clipboard on upper side connecting plate
The wiping arrangement of chemical equation erasing is mounted on the leading flank of two supporting plates in left and right.
2. a kind of chemical equation teaching demonstration frame according to claim 1, which is characterized in that fixing device includes
There are snap-gauge, spill guide rod, notch plate and spring, the left and right sides at the top of clipboard is respectively connected with snap-gauge, opens on upper side connecting plate
There are eight pilot holes, slidingtype is equipped with spill guide rod, the left and right two of spill guide rod bottom between the two adjacent pilot holes in left and right
End is respectively and fixedly provided with notch plate, and notch plate and snap-gauge cooperate, and the left and right sides of spill guide rod is wound with spring, the top of spring with it is upper
The bottom of side connecting plate is affixed, and the bottom end of spring and the top of notch plate are connected.
3. a kind of chemical equation teaching demonstration frame according to claim 2, which is characterized in that wiping arrangement includes
There are guide rod, guide sleeve, limited block, oscillating rod, wiping block, screw bolt and nut, the leading flank of supporting plate is provided with guide rod, guide rod
Upper slidingtype is equipped with guide sleeve, and the leading flank of guide sleeve is provided with limited block, and the leading flank rotary type of left side guide sleeve is connected with oscillating rod,
The two sides up and down of oscillating rod are provided with jack, and bolt is equipped in jack, is fixed between the rear end of upper and lower two bolts erasable
The wiping block of chemical equation, the front end of bolt pass through jack, and the front side of bolt is equipped with nut that can be fixed to wiping block.
4. a kind of chemical equation teaching demonstration frame according to claim 3, which is characterized in that further include having cunning
Wheel, bracing wire and weight are equipped with pulley at the top of supporting plate, bracing wire are connected at the top of guide sleeve, bracing wire bypasses pulley, left and right two
Weight is fixed between the bottom end of bracing wire.
5. a kind of chemical equation teaching demonstration frame according to claim 4, which is characterized in that further include having guiding
Plate and sliding axle are fixed with guide plate between the middle part of upper and lower two connecting plate trailing flanks, and being provided on guide plate can be to sliding axle
One word hole of mobile guide, sliding axle slidingtype are located in a word hole, and the rear end of sliding axle and the middle part of weight leading flank are affixed.
6. a kind of chemical equation teaching demonstration frame according to claim 5, which is characterized in that further include having support
Plate, placement plate and collection frame are provided with through-hole on lower side connecting plate, can the left and right sides to the collection frame bottom that chalk dust stores it is equal
It is connected with placement plate, collection frame is located at the downside of through-hole, and the bottom of placement plate is fixed with support plate, the bottom of support plate and pedestal
Interior bottom contact.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416929.5A CN110211452A (en) | 2019-05-20 | 2019-05-20 | A kind of chemical equation teaching demonstration frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416929.5A CN110211452A (en) | 2019-05-20 | 2019-05-20 | A kind of chemical equation teaching demonstration frame |
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| CN110211452A true CN110211452A (en) | 2019-09-06 |
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| CN108248251A (en) * | 2018-01-30 | 2018-07-06 | 赣州市亿研机械设计研究院有限公司 | A kind of adjustable type blackboard for blackboard newspaper of imparting knowledge to students |
| CN108481954A (en) * | 2018-02-11 | 2018-09-04 | 万秀英 | A kind of teaching adjustable type blackboard |
| CN108621650A (en) * | 2018-05-04 | 2018-10-09 | 南安紫鲸铃工业设计有限公司 | A kind of plug-type board of education of novel multifunctional combination |
| CN208714767U (en) * | 2018-08-23 | 2019-04-09 | 李方方 | A kind of blackboard for teaching |
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Application publication date: 20190906 |
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