CN207449475U - A kind of line-drawing device for English teaching - Google Patents
A kind of line-drawing device for English teaching Download PDFInfo
- Publication number
- CN207449475U CN207449475U CN201720681706.8U CN201720681706U CN207449475U CN 207449475 U CN207449475 U CN 207449475U CN 201720681706 U CN201720681706 U CN 201720681706U CN 207449475 U CN207449475 U CN 207449475U
- Authority
- CN
- China
- Prior art keywords
- chalk
- fixed frame
- device body
- line
- english teaching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model is related to a kind of line-drawing device for English teaching.Its technical solution is：It is equipped in the upper and lower ends of device body and extends telescopic rod, roller connecting rod is hinged in the left side upper end for extending telescopic rod, it is opened up in the inside middle of device body fluted, support telescopic bar is internally provided in groove, the left end of the support telescopic bar is equipped with chalk fixed frame, the upper and lower ends of the chalk fixed frame, which are equipped with, pulls out ring, sets that there are four chalk fixing sleeves on the middle part of the chalk fixed frame from top to bottom.Advantageous effect is：It is moved left and right by idler wheel along blackboard, equidistant four parallel lines can be disposably drawn on blackboard, provide three rulings for writing English, by sliding-rail groove chalk fixed frame being enable to move up and down can repeatedly be rule, it is convenient and efficient, improve the work efficiency of teacher；Chalk fixing sleeve can be removed directly and write using remaining chalk on blackboard, avoided chalk bits and contacted directly hand skin, skin is damaged.
Description
Technical field
The utility model is related to a kind of teaching aid, more particularly to a kind of line-drawing device for English teaching.
Background technology
In English teaching, for the ease of the progress of teaching, teacher usually requires to draw on blackboard a plurality of parallel
Line, the method for drawing parallel lines at present is usually that teacher draws four lines using ruler successively on blackboard, utilizes personal experience
To ensure to be mutually parallel between each line.Due to the limited length of set square and ruler, so straight line needs teacher to draw more
Go out multistage straight line be spliced into a complete straight line, however three rulings need to draw four parallel straight lines, and draw
The parallel lines thickness that goes out is uneven, the depth of parallelism is poor, it is difficult to reach code requirement, this brings to a certain degree to the striping jobs of teacher
On burden, many time in classroom are often all consumed during setting-out, be unfavorable for classroom instruction in addition influence quality of instruction.
The content of the invention
The purpose of this utility model provides a kind of English teaching line aiming at drawbacks described above existing in the prior art
Device.
Its technical solution is：Including device body, extend telescopic rod, roller connecting rod, idler wheel, screw rod, support telescopic bar,
Chalk fixed frame, chalk fixing sleeve pull out ring, are equipped in the upper and lower ends of device body and extend telescopic rod, are extending telescopic rod
Left side upper end be hinged with roller connecting rod, idler wheel is movably connected on roller connecting rod, is opened in the inside middle of device body
Equipped with groove, support telescopic bar is internally provided in groove, the support telescopic bar right end is connected to device sheet by screw rod
On the side wall of body, the left end of the support telescopic bar is equipped with chalk fixed frame, and the upper and lower ends of the chalk fixed frame are set
There is pull-out ring, set from top to bottom on the middle part of the chalk fixed frame there are four chalk fixing sleeve.
Above-mentioned chalk fixing sleeve is made of connecting sleeve and fixed sleeving, and connecting sleeve passes through inside and outside spiral shell with fixed sleeving
Line is connected, and in being internally provided with by pressing spring for fixed sleeving, is fixedly connected on by one end of pressing spring in fixed sleeving
On wall, top plate is connected with by the other end of pressing spring, both sides are equipped with card slot to the right end of the fixed sleeving up and down.
Above-mentioned chalk fixed frame is internally provided with fixing groove, is equipped in the inside upper and lower ends of fixing groove and matches with card slot
The fixture block of conjunction, fixture block are connected to by spring on the inner wall of fixing groove.
It is arranged with Anti-slip cover in above-mentioned connecting sleeve, the outer wall of Anti-slip cover camber structure low between the senior middle school of both ends, and
Outer wall is equipped with multiple anti-skid bulges.
The sliding-rail groove for being internally provided with support telescopic bar of above-mentioned device body.
Above-mentioned screw rod is moved up and down along the slideway on device body side wall.
The beneficial effects of the utility model are：It is moved left and right, can be disposably drawn on blackboard along blackboard by idler wheel
Equidistant four parallel lines provide three rulings for writing English, and by sliding-rail groove chalk fixed frame is enable to move up and down can
Repeatedly rule, it is convenient and efficient, improve the work efficiency of teacher；Chalk fixing sleeve can be dismantled arbitrarily, and can directly remove makes
It is write with remaining chalk on blackboard, avoids chalk bits and contact directly hand skin, skin is damaged.
Description of the drawings
Attached drawing 1 is the structure diagram of the utility model；
Attached drawing 2 is the usage state diagram of the utility model；
Attached drawing 3 is the sectional view of A-A after chalk fixed frame pulls out；
Attached drawing 4 is the structure diagram of B；
Attached drawing 5 is the structure diagram of C；
In figure：Device body 1, extension telescopic rod 2, roller connecting rod 3, idler wheel 4, screw rod 5, support telescopic bar 6, chalk are solid
Determine frame 7, chalk fixing sleeve 8, pull out ring 9, blackboard 10, sliding-rail groove 1.1, slideway 1.2, fixing groove 7.1, fixture block 7.2, connecting sleeve
8.1st, fixed sleeving 8.2, by pressing spring 8.3, top plate 8.4, card slot 8.5, Anti-slip cover 8.1.1, anti-skid bulge 8.1.2.
Specific embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
Embodiment is selected to be only used for describing and explaining the present invention, is not used to limit the utility model.
The utility model includes device body 1, extends telescopic rod 2, roller connecting rod 3, idler wheel 4, screw rod 5, support telescopic
Bar 6, chalk fixed frame 7, chalk fixing sleeve 8, pull-out ring 9, are equipped in the upper and lower ends of device body 1 and extend telescopic rod 2, prolonging
The left side upper end of long telescopic rod 2 is hinged with roller connecting rod 3, and idler wheel 4 is movably connected on roller connecting rod 3, in device body 1
Inside middle open up fluted, be internally provided with support telescopic bar 6 in groove, 6 right end of support telescopic bar passes through spiral shell
Bar 5 is connected on the side wall of device body 1, and the left end of the support telescopic bar 6 is equipped with chalk fixed frame 7, the chalk
The upper and lower ends of fixed frame 7, which are equipped with, pulls out ring 9, sets on the middle part of the chalk fixed frame 7 and consolidates there are four chalk from top to bottom
Surely 8 are covered.
Wherein, chalk fixing sleeve 8 is made of connecting sleeve 8.1 and fixed sleeving 8.2, connecting sleeve 8.1 and fixed sleeving
8.2 are connected by internal and external threads, in being internally provided with by pressing spring 8.3 for fixed sleeving 8.2, by one end of pressing spring 8.3
It is fixedly connected on the inner wall of fixed sleeving 8.2, top plate 8.4, the fixed sleeving is connected with by the other end of pressing spring 8.3
Both sides are equipped with card slot 8.5 to 8.2 right end up and down.
Chalk fixed frame 7 is internally provided with fixing groove 7.1, is equipped with and card slot 8.5 in the inside upper and lower ends of fixing groove 7.1
Matched fixture block 7.2, fixture block 7.2 are connected to by spring on the inner wall of fixing groove 7.1.
In addition, being arranged with Anti-slip cover 8.1.1 in connecting sleeve 8.1, the outer wall of Anti-slip cover 8.1.1 is low between the senior middle school of both ends
Camber structure, and outer wall is equipped with multiple anti-skid bulge 8.1.2, increases the curable grip of hand, chalk is avoided to be slipped from hand.
In addition, the sliding-rail groove 1.1 for being internally provided with support telescopic bar 6 of device body 1, the screw rod 5 is along device body 1
Slideway 1.2 on side wall moves up and down.
In use, the idler wheel at device body both ends to be connected to the upper and lower ends of blackboard, extending telescopic rod can be according to blackboard
Height adjustment device length, chalk fixed frame from groove can be pulled out by pulling out ring, chalk is put into connecting sleeve
In, connecting sleeve is connected by thread fitting with fixed sleeving, and top plate by chalk by pressing spring by being tightly against connecting sleeve
In, it can be ensured that the pressure of chalk during writing, the fixture block cooperation in the groove and fixing groove that fixed sleeving passes through right end are connected to
On chalk fixed frame, being moved up and down by screw rod can make chalk fixed frame move up and down the position to be rule of adjustment in sliding-rail groove
It puts, after mixing up position, screws screw rod, the side wall of device body is fixed chalk by the extruding force of screw rod and support telescopic boom end
Frame is fixed, and moving left and right driving device body along blackboard edge by idler wheel moves, and draws equidistant four parallel lines,
By sliding-rail groove chalk fixed frame is enable to move up and down can repeatedly be rule, it is convenient and efficient, improve the work effect of teacher
Rate；After use, roller connecting rod by hinge shaft can be folded, chalk fixed frame is placed in a groove, reduces and occupies sky
Between；Chalk fixing sleeve on chalk fixed frame can be dismantled arbitrarily, can directly remove using remaining chalk in the enterprising running hand of blackboard
It writes, avoids chalk bits and contact directly hand skin, skin is damaged, Anti-slip cover can increase the curable grip of hand, avoid
Chalk slips.
The above, is only the preferred embodiment of the utility model, and any those skilled in the art may profit
Equivalent technical solution is changed the utility model or is revised as with the technical solution of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out belong to the greatest extent the requires of the utility model protection
Scope.
Claims (6)
1. a kind of line-drawing device for English teaching, it is characterized in that：Including device body（1）, extend telescopic rod（2）, idler wheel connection
Bar（3）, idler wheel（4）, screw rod（5）, support telescopic bar（6）, chalk fixed frame（7）, chalk fixing sleeve（8）, pull out ring（9）,
Device body（1）Upper and lower ends be equipped with extend telescopic rod（2）, extending telescopic rod（2）Left side upper end be hinged with idler wheel company
Extension bar（3）, idler wheel（4）It is movably connected in roller connecting rod（3）On, in device body（1）Inside middle open up it is fluted,
Groove is internally provided with support telescopic bar（6）, the support telescopic bar（6）Right end passes through screw rod（5）It is connected to device body
（1）Side wall on, the support telescopic bar（6）Left end be equipped with chalk fixed frame（7）, the chalk fixed frame（7）'s
Upper and lower ends, which are equipped with, pulls out ring（9）, the chalk fixed frame（7）Middle part on set from top to bottom there are four chalk fixing sleeve
（8）.
2. a kind of line-drawing device for English teaching according to claim 1, it is characterized in that：The chalk fixing sleeve（8）
By connecting sleeve（8.1）And fixed sleeving（8.2）Composition, connecting sleeve（8.1）With fixed sleeving（8.2）Matched somebody with somebody by internal and external threads
Connection is closed, in fixed sleeving（8.2）Be internally provided with by pressing spring（8.3）, by pressing spring（8.3）One end be fixedly connected on
Determine casing（8.2）Inner wall on, by pressing spring（8.3）The other end be connected with top plate（8.4）, the fixed sleeving（8.2）
Right end up and down both sides be equipped with card slot（8.5）.
3. a kind of line-drawing device for English teaching according to claim 1, it is characterized in that：The chalk fixed frame（7）
Be internally provided with fixing groove（7.1）, in fixing groove（7.1）Inside upper and lower ends be equipped with and card slot（8.5）Matched fixture block
（7.2）, fixture block（7.2）Fixing groove is connected to by spring（7.1）Inner wall on.
4. a kind of line-drawing device for English teaching according to claim 2, it is characterized in that：The connecting sleeve（8.1）
On be arranged with Anti-slip cover（8.1.1）, Anti-slip cover（8.1.1）Outer wall camber structure low between the senior middle school of both ends, and set on outer wall
There are multiple anti-skid bulges（8.1.2）.
5. a kind of line-drawing device for English teaching according to claim 1, it is characterized in that：The device body（1）'s
It is internally provided with support telescopic bar（6）Sliding-rail groove（1.1）.
6. a kind of line-drawing device for English teaching according to claim 1, it is characterized in that：The screw rod（5）Along device
Body（1）Slideway on side wall（1.2）It moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681706.8U CN207449475U (en) | 2017-06-13 | 2017-06-13 | A kind of line-drawing device for English teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681706.8U CN207449475U (en) | 2017-06-13 | 2017-06-13 | A kind of line-drawing device for English teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207449475U true CN207449475U (en) | 2018-06-05 |
Family
ID=62246482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720681706.8U Expired - Fee Related CN207449475U (en) | 2017-06-13 | 2017-06-13 | A kind of line-drawing device for English teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207449475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
| CN110877492A (en) * | 2018-09-06 | 2020-03-13 | 邯郸学院 | Device for drawing mathematical graph |
-
2017
- 2017-06-13 CN CN201720681706.8U patent/CN207449475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877492A (en) * | 2018-09-06 | 2020-03-13 | 邯郸学院 | Device for drawing mathematical graph |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20200613 |