CN207403449U - English teaching auto-erasing formula board writing teaching aid - Google Patents
English teaching auto-erasing formula board writing teaching aid Download PDFInfo
- Publication number
- CN207403449U CN207403449U CN201621415765.2U CN201621415765U CN207403449U CN 207403449 U CN207403449 U CN 207403449U CN 201621415765 U CN201621415765 U CN 201621415765U CN 207403449 U CN207403449 U CN 207403449U
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- CN
- China
- Prior art keywords
- wiping
- grillage
- slide plate
- auto
- case
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of English teaching auto-erasing formula board writing teaching aids, including grillage, it is installed with datum plate and transparent board successively in grillage, multigroup four lines, three ruling is decorated on datum plate, two ball screws are arranged in grillage both sides, slide plate is equipped on front side of grillage, slide plate both ends are mounted on by sliding block on two ball screws respectively, screw is equipped in sliding block, the wiping case of built-in clear water is connected in slide plate inner elastic, wiping felt rug and several uniformly distributed permeable holes on wiping box wall are fixed on the inside of wiping case, wiping felt rug elasticity is pressed in transparent tablet surface；The electric driver being connected with two ball leading screw drivings is equipped on grillage.Advantageous effect is：It is compact-sized, it can realize auto-erasing writing on the blackboard content, dust is small during wiping, avoids chalk dust by teacher and front-seat classmate's sucking；The English alphabet of specification can be written, easy to use, the elementary teaching for being especially suitable for small English learning uses.
Description
Technical field
The utility model is related to a kind of teaching aid, more particularly to a kind of English teaching auto-erasing formula board writing teaching aid.
Background technology
At present, in the English teaching of school and college, although multimedia teaching is increasingly popularized, teacher still needs warp
Writing on the blackboard is often write on blackboard, in favor of student memory, is improved the quality of teaching.Particularly in the elementary teaching of small English learning,
Sometimes teacher need to also draw four lines, three ruling on blackboard, virtually increase labor intensity.When after writing on the blackboard is write completely to catch up with
Between, many teachers are quickly to wipe writing on the blackboard content using blackboard eraser, so as to generate substantial amounts of chalk dust easily by teacher and
Front-seat classmate's sucking, damages the body of teacher and classmate.
The content of the invention
The technical problem to be solved by the utility model is to provide a kind of compact in structure and convenient to use, can realize automatic
Writing on the blackboard content is wiped, dust is small during wiping, can utmostly avoid chalk dust by teacher and the English of front-seat classmate's sucking
Teaching auto-erasing formula board writing teaching aid.
To solve the above problems, the utility model adopts the following technical solution：
A kind of English teaching auto-erasing formula board writing teaching aid including grillage, is installed with datum plate and thoroughly successively in grillage
Bright board is decorated with multigroup four lines, three ruling on datum plate, two rotatable ball screws is arranged in grillage both sides,
Slide plate is equipped on front side of grillage, slide plate both ends are mounted on by sliding block on two ball screws respectively, are equipped with and rolling in sliding block
The screw of ballscrew cooperation, the wiping case of built-in clear water is connected in slide plate inner elastic, and wiping is fixed on the inside of wiping case
Felt rug and several uniformly distributed permeable holes on wiping box wall, wiping felt rug elasticity are pressed in transparent tablet surface；In grillage
The electric driver being connected with two ball leading screw drivings is equipped with, for driving two ball screw synchronous rotaries, so as to band
Dynamic slide plate and the auto-erasing for wiping case reciprocating motion realization writing on the blackboard.
As further preferred, screw rod is uniformly fixed with before wiping case, screw front end is pierced by and is connected by slide plate respectively
Location nut is connected to, is located on screw rod between wiping case and slide plate and is arranged with spring, be pressed in for felt rug elasticity will to be wiped
Bright tablet surface.
As further preferred, servomotor of the electric driver including being mounted on grillage upper center, servo electricity
Machine output shaft is connected with the upper end of two ball screws by synchronous pulley and toothed belt transmission, is leaned in grillage upper end both sides
Expansion tightening wheel is respectively equipped at nearly servomotor and ball screw.
As further preferred, be sealed and installed with upper cover in wiping case upper end, water injection hole be evenly equipped on upper lid, for
Wipe injected clear water in case.
The beneficial effects of the utility model are：It is compact-sized, by electric driver two ball screws is driven synchronously to revolve
Turn, so as to which slide plate and wiping case be driven to move back and forth, just can realize auto-erasing writing on the blackboard content, dust is small during wiping, can
Chalk dust is utmostly avoided by teacher and front-seat classmate's sucking；Due to being installed with datum plate successively in grillage and transparent writing
Letter stencil is decorated with multigroup four lines, three ruling on datum plate, there is no need to draw four lines, three ruling again, can write out the English of specification
Letter, easy to use, the elementary teaching for being especially suitable for small English learning uses.
Description of the drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A-A sectional views of Fig. 1.
Fig. 4 is the partial enlarged view of Fig. 3.
In figure：Slide plate 1, grillage 2, transparent board 3, datum plate 4, ball screw 5, synchronous belt 6, servomotor 7, wiping
Case 8, screw 9, location nut 10, screw rod 11 wipe felt rug 12, spring 13, sliding block 14, expansion tightening wheel 15, sealing-plug 16, upper cover
17。
Specific embodiment
As shown in Figure 1 to 4, the utility model is related to a kind of English teaching auto-erasing formula board writing teaching aid, it has one
A grillage 2, is installed with datum plate 4 and transparent board 3 successively in grillage 2, and multigroup four lines, three lattice are decorated on datum plate 4
Line, transparent board 3 slightly protrude from 2 front surface of grillage.
Two rotatable ball screws 5 are symmetrically installed with by being installed in the bearing of upper and lower end in 2 both sides of grillage,
2 front side of grillage is equipped with slide plate 1, and 1 both ends of slide plate are mounted on by sliding block 14 on two ball screws 5 respectively, and sliding block 14 passes through spiral shell
Bolt is fixed on 1 both ends of slide plate, the fixed screw 9 being installed with 5 thread fitting of ball screw in sliding block 14, in 1 inside of slide plate
The wiping case 8 of built-in clear water is elasticly connected with, has wiping felt rug and in wiping 8 madial wall of case in wiping 8 inside fixed bonding of case
Upper to be evenly distributed with several permeable holes, wiping felt rug is pressed in transparent 3 surface of board for water suction felt rug and elasticity.In 8 front of wiping case
Multiple screw rods 11 are uniformly fixed with, 11 front end of screw rod is pierced by by slide plate 1 and is connected with location nut 10 respectively, upper in screw rod 11
Spring 13 is arranged between wiping case 8 and slide plate 1, transparent 3 surface of board is pressed in for felt rug elasticity will to be wiped.
Upper cover 17 is sealed and installed in 8 upper end of wiping case, water injection hole is evenly equipped in upper cover 17, for into wiping case 8
Injected clear water.Sealing-plug 16 is respectively provided in water injection hole.
The electric driver being sequentially connected with two ball screws 5 is equipped on grillage 2, for driving two ball screws
5 synchronous rotaries, so as to drive slide plate 1 and wipe the auto-erasing of the reciprocating motion realization writing on the blackboard of case 8.
The electric driver includes the servomotor 7 mounted on 2 upper center of grillage, 7 output shaft of servomotor and institute
The upper end for stating two ball screws 5 is sequentially connected by the synchronous belt 6 of three synchronous pulleys and a circle closing, in 2 upper end of grillage
Both sides are respectively equipped with expansion tightening wheel 15 at servomotor 7 and ball screw 5, and expansion tightening wheel 15 is pressed in synchronization by 6 outside of synchronous belt
On band 6, synchronous belt 6 can be pressed on to 5 upper end of 7 output shaft of servomotor and ball screw.Control is equipped in 2 one side lower end of grillage
Switch, for controlling the keying of servomotor 7 and steering.
In use, the English teaching auto-erasing formula board writing teaching aid is fixed in classroom on the metope of front.Teacher is teaching
Class hour directly writing on the blackboard can be write on transparent board 3.It, can due to being decorated with multigroup four lines, three ruling on datum plate 4
Write out the English alphabet of specification.After the writing of transparent 3 top panel of board is full, presses control switch and start servomotor 7, pass through
Servomotor 7 drives two ball screw synchronous rotaries, so as to by screw 9 slide plate 1 and wiping case 8 be driven to move back and forth,
Case 8 is wiped in reciprocatory movement and wiping felt rug is pressed in transparent 3 surface of board always under the action of the spring, realizes automatic wipe
Except writing on the blackboard content.During wiping, the clear water contained in wiping case 8 may penetrate by permeable hole in wiping felt rug, make wiping felt rug
In moisture state, therefore the dust generated during wiping can be reduced to the greatest extent, be conducive to the health of Faculty and Students.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to the field of various suitable the utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (4)
1. a kind of English teaching auto-erasing formula board writing teaching aid, including grillage, it is characterized in that：It is installed with benchmark successively in grillage
Plate and transparent board are decorated with multigroup four lines, three ruling on datum plate, two rotatable rollings are arranged in grillage both sides
Ballscrew, is equipped with slide plate on front side of grillage, and slide plate both ends are mounted on two ball screws by sliding block, are set in sliding block respectively
There is the screw with ball screw cooperation, the wiping case of built-in clear water is connected in slide plate inner elastic, it is fixed on the inside of wiping case
There are wiping felt rug and several uniformly distributed permeable holes on wiping box wall, wiping felt rug elasticity is pressed in transparent tablet surface；
The electric driver being connected with two ball leading screw drivings is equipped on grillage, for driving two ball screw synchronous rotaries,
So as to drive slide plate and wipe the auto-erasing of case reciprocating motion realization writing on the blackboard.
2. English teaching auto-erasing formula board writing teaching aid according to claim 1, it is characterized in that：It is uniformly distributed before wiping case
Be fixed with screw rod, screw front end is pierced by by slide plate and is connected with location nut respectively, be located on screw rod wiping case and slide plate it
Between be arranged with spring, be pressed in transparent tablet surface for felt rug elasticity will to be wiped.
3. English teaching auto-erasing formula board writing teaching aid according to claim 1, it is characterized in that：The electric driver bag
The servomotor mounted on grillage upper center is included, servo motor output shaft passes through synchronous with the upper end of two ball screws
Belt wheel is connected with toothed belt transmission, and expansion tightening wheel is respectively equipped at servomotor and ball screw in grillage upper end both sides.
4. English teaching auto-erasing formula board writing teaching aid according to claim 1 or 2, it is characterized in that：In wiping case upper end
Upper cover is sealed and installed with, water injection hole is evenly equipped on upper lid, for the injected clear water into wiping case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415765.2U CN207403449U (en) | 2016-12-22 | 2016-12-22 | English teaching auto-erasing formula board writing teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415765.2U CN207403449U (en) | 2016-12-22 | 2016-12-22 | English teaching auto-erasing formula board writing teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207403449U true CN207403449U (en) | 2018-05-25 |
Family
ID=62321519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621415765.2U Expired - Fee Related CN207403449U (en) | 2016-12-22 | 2016-12-22 | English teaching auto-erasing formula board writing teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207403449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118893A (en) * | 2018-10-26 | 2019-01-01 | 日照职业技术学院 | One kind being suitable for Chinese literature professional teaching demonstration equipment |
-
2016
- 2016-12-22 CN CN201621415765.2U patent/CN207403449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118893A (en) * | 2018-10-26 | 2019-01-01 | 日照职业技术学院 | One kind being suitable for Chinese literature professional teaching demonstration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20181222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |