CN206287710U - A kind of compass for math teaching - Google Patents
A kind of compass for math teaching Download PDFInfo
- Publication number
- CN206287710U CN206287710U CN201621192463.3U CN201621192463U CN206287710U CN 206287710 U CN206287710 U CN 206287710U CN 201621192463 U CN201621192463 U CN 201621192463U CN 206287710 U CN206287710 U CN 206287710U
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- CN
- China
- Prior art keywords
- threaded rod
- pole
- compass
- bar
- loop bar
- 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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Abstract
The utility model discloses a kind of compass for math teaching, it is related to teaching aid technical field.The compass for math teaching, including connecting seat, support bar is installed with the top of the connecting seat, the bottom of the connecting seat is connected with the first pole and the second pole by rotating shaft, the bottom of first pole is installed with fixed seat, the preceding surface of first pole and the second pole is installed with the first threaded rod, and the first threaded rod surface is provided with the retainer ring being adapted with the first threaded rod.The compass for math teaching, by the setting to loop bar, sleeve, dividing plate and support spring, enable that chalk is good to be clamped between fixture block, and need to only promote briquetting, such chalk to drop automatically when taking-up, facilitate the use of people, and the cooperation for passing through sleeve, fracture caused by preventing chalk stress excessive, makes what teacher used more to facilitate, and effectively raises the quality of attending class of teacher.
Description
Technical field
The utility model is related to teaching aid technical field, specially a kind of compass for math teaching.
Background technology
The apparatus for enabling student to be used when intuitively, visually understanding each appliances and teachers' instruction that the content of courses used
General name, referred to as, teaching aid can improve the learning interest of student to teaching aid, enrich perceptual knowledge, help form clear and definite concept, develop
The observation ability and thinking ability of student, typically divide common teaching aid, special teaching aid, the class of Teachig-aid for infant studying three.
It is extremely important for round study in mathematical education, therefore teacher's needs draw corresponding circle on blackboard
And camber line, compasses are so needed to use, compasses are the instruments for drawing circle or string in mathematics and drawing, are usually used in chi
Rule mapping, compasses are made typically metal, including two parts connection is by a hinge, wherein can adjust.
But traditional compasses for teaching, during use, it is that chalk is placed in draw-in groove, but using having
Chalk is not easy to take out, and so has a strong impact on the teaching of instructors, reduces instruction art.
Utility model content
（One）The technical problem of solution
In view of the shortcomings of the prior art, the utility model provides a kind of compass for math teaching, after solving use
Chalk is not easy the problem taken out.
（Two）Technical scheme
To realize object above, the utility model is achieved by the following technical programs：A kind of compass for math teaching,
Including connecting seat, support bar is installed with the top of the connecting seat, the bottom of the connecting seat is flexibly connected by rotating shaft
There are the first pole and the second pole, the bottom of first pole is installed with fixed seat, first pole and second
The preceding surface of bar is installed with the first threaded rod, and the first threaded rod surface is provided with and is adapted with the first threaded rod
Retainer ring, the first fishbolt being adapted with the first threaded rod, described second are installed at the top of first threaded rod
The preceding surface of pole is installed with the second threaded rod, and the surface activity of second threaded rod is connected with connecting rod, described
The second fishbolt being adapted with the second threaded rod, the bottom fixed installation of the connecting rod are installed at the top of two threaded rods
There is loop bar, the bottom of the loop bar is interspersed to be provided with sleeve, interts in the sleeve and is provided with chalk, and the inwall both sides of the loop bar are equal
Sliding seat is installed with, the sliding seat is connected with dividing plate away from one end of loop bar inwall, and the dividing plate is away from activity
The bottom of the side of seat is installed with fixture block, the dividing plate away from being installed with cushion block at the top of the side of sliding seat, institute
State and be installed between cushion block support spring, the dividing plate is installed with limited block near a side roof part of sliding seat, institute
State limited block and be installed with motion bar away from one end of dividing plate, the motion bar runs through loop bar and prolongs away from one end of limited block
Extend the outside of loop bar.
Preferably, the chute being adapted with the first threaded rod is offered in the retainer ring, and the two ends of retainer ring are solid
Dingan County is equipped with limiting plate.
Preferably, the bottom of the fixed seat is installed with Anti-slip cover.
Preferably, the surface of the support bar offers anti-slip veins.
Preferably, one end of the motion bar and external stability positioned at loop bar is provided with briquetting.
（Three）Beneficial effect
The utility model provides a kind of compass for math teaching.Possesses following beneficial effect：
（1）, the compass for math teaching, by the setting to loop bar, sleeve, dividing plate and support spring, enable chalk
Good is clamped between fixture block, and need to only promote briquetting, such chalk to drop automatically when taking-up, facilitates people's
Use, and the cooperation for passing through sleeve, fracture caused by preventing chalk stress excessive, make what teacher used more to facilitate, effectively
The quality of attending class that improve teacher.
（2）, the compass for math teaching, by the setting to retainer ring, the first threaded rod and the first fishbolt, make this
Device the first pole and second pole during circle is drawn more are stablized, and effectively raise the quality of picture, facilitate people
Use.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the structural representation of the utility model loop bar.
In figure：1 connecting seat, 2 support bars, 3 first poles, 4 second poles, 5 fixed seats, 6 first threaded rods, 7 retainer rings,
8 first fishbolts, 9 second threaded rods, 10 connecting rods, 11 second fishbolts, 12 loop bars, 13 sleeves, 14 chalks, 15 activities
It is seat, 16 dividing plates, 17 fixture blocks, 18 cushion blocks, 19 support springs, 20 limited blocks, 21 motion bars, 22 chutes, 23 limiting plates, 24 anti-skidding
Set, 25 briquettings.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of compass for math teaching, including connecting seat
1, the top of connecting seat 1 is installed with support bar 2, and the surface of support bar 2 offers anti-slip veins, and even anti-slip veins have anti-skidding work
With, teacher is more facilitated during use, the bottom of connecting seat 1 is connected with the first pole 3 and the by rotating shaft
Two poles 4, the bottom of the first pole 3 is installed with fixed seat 5, and the bottom of fixed seat 5 is installed with Anti-slip cover 24, anti-skidding
Set 24 makes the device during use, it is to avoid the movement in the center of circle, effectively raises the quality of picture, the He of the first pole 3
The preceding surface of the second pole 4 is installed with the first threaded rod 6, and the surface of the first threaded rod 6 is provided with and the first threaded rod 6
The retainer ring 7 being adapted, offers the chute 22 being adapted with the first threaded rod 6 in retainer ring 7, and the two ends of retainer ring 7 are equal
Limiting plate 23 is installed with, retainer ring 7 can enable the first pole 3 and the second pole 4 during the device use
It is effective fixed, teacher is more stablized when drawing, improve the quality of picture, the top of the first threaded rod 6
The first fishbolt 8 being adapted with the first threaded rod 6 is installed, the preceding surface of the second pole 4 is installed with the second screw thread
Bar 9, the surface activity of the second threaded rod 9 is connected with connecting rod 10, and the top of the second threaded rod 9 is provided with and the second threaded rod 9
The second fishbolt 11 being adapted, the bottom of connecting rod 10 is installed with loop bar 12, and the bottom of loop bar 12 is interspersed to be provided with set
Cylinder 13, sleeve 13 has the effect for supporting and fixing chalk 14, makes chalk that easy fracture is not allowed during use, in sleeve 13
Interspersed to be provided with chalk 14, the inwall both sides of loop bar 12 are installed with sliding seat 15, and sliding seat 15 is away from the inwall of loop bar 12
One end is connected with dividing plate 16, and dividing plate 16 is installed with fixture block 17 away from the bottom of the side of sliding seat 15, and dividing plate 16 is remote
Cushion block 18 is installed with the top of the side of sliding seat 15, support spring 19 is installed between cushion block 18, support bullet
Spring 19 can effective supporting clapboard 16 so that chalk 14 can be fixed effectively, dividing plate 16 is near the side of sliding seat 15
Top is installed with limited block 20, and limited block 20 is installed with motion bar 21 away from one end of dividing plate 16, motion bar 21
One end and the external stability positioned at loop bar 12 are provided with briquetting 25, motion bar 21 away from limited block 20 one end through loop bar 12 simultaneously
Extend to the outside of loop bar 12.
When using, briquetting 25 is first pressed inward against, then chalk 14 is inserted into from sleeve 13, waited after the completion of insertion, unclamped
Briquetting 25, then unclamps the angle of the first fishbolt 8, the first pole 3 of adjustment and the second pole 4, so that round radius is adjusted,
After the completion of Deng adjustment, the first fishbolt 8 is fixed, then hold support bar 2 and draw image.
In sum, compass for math teaching, by setting to loop bar 12, sleeve 13, dividing plate 16 and support spring 19
Briquetting 25, such chalk 14 need to be only promoted when putting, enable that chalk 14 is good to be clamped between fixture block 17, and take out
Automatically drop, facilitate the use of people, and by the cooperation of sleeve 13, fracture caused by preventing the stress of chalk 14 excessive,
Make what teacher used more to facilitate, effectively raise the quality of attending class of teacher.
Meanwhile, by the setting to retainer ring 7, the first threaded rod 6 and the first fishbolt 8, the device is being drawn circle
During the first pole 4 and the second pole 5 more stablize, effectively raise the quality of picture, facilitate the use of people.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element for limiting, it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment ".
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of compass for math teaching, including connecting seat（1）, it is characterised in that：The connecting seat（1）Top fixed installation
There is support bar（2）, the connecting seat（1）Bottom the first pole is connected with by rotating shaft（3）With the second pole（4）, institute
State the first pole（3）Bottom be installed with fixed seat（5）, first pole（3）With the second pole（4）Preceding surface
It is installed with the first threaded rod（6）, first threaded rod（6）Surface is provided with and the first threaded rod（6）It is adapted
Retainer ring（7）, first threaded rod（6）Top be provided with and the first threaded rod（6）The first fishbolt being adapted
（8）, second pole（4）Preceding surface be installed with the second threaded rod（9）, second threaded rod（9）Surface live
It is dynamic to be connected with connecting rod（10）, second threaded rod（9）Top be provided with and the second threaded rod（9）The second folder being adapted
Tight bolt（11）, the connecting rod（10）Bottom be installed with loop bar（12）, the loop bar（12）Bottom interspersed be provided with
Sleeve（13）, the sleeve（13）It is interior interspersed to be provided with chalk（14）, the loop bar（12）Inwall both sides be installed with work
Dynamic seat（15）, the sliding seat（15）Away from loop bar（12）One end of inwall is connected with dividing plate（16）, the dividing plate（16）
Away from sliding seat（15）The bottom of side be installed with fixture block（17）, the dividing plate（16）Away from sliding seat（15）Side
Top be installed with cushion block（18）, the cushion block（18）Between be installed with support spring（19）, the dividing plate（16）
Near sliding seat（15）A side roof part be installed with limited block（20）, the limited block（20）Away from dividing plate（16）One end
It is installed with motion bar（21）, the motion bar（21）Away from limited block（20）One end run through loop bar（12）And extend to set
Bar（12）Outside.
2. a kind of compass for math teaching according to claim 1, it is characterised in that：The retainer ring（7）On offer
With the first threaded rod（6）The chute being adapted（22）, and retainer ring（7）Two ends be installed with limiting plate（23）.
3. a kind of compass for math teaching according to claim 1, it is characterised in that：The fixed seat（5）Bottom consolidate
Dingan County is equipped with Anti-slip cover（24）.
4. a kind of compass for math teaching according to claim 1, it is characterised in that：The support bar（2）Surface open
It is provided with anti-slip veins.
5. a kind of compass for math teaching according to claim 1, it is characterised in that：The motion bar（21）One end and
Positioned at loop bar（12）External stability briquetting is installed（25）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621192463.3U CN206287710U (en) | 2016-11-06 | 2016-11-06 | A kind of compass for math teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621192463.3U CN206287710U (en) | 2016-11-06 | 2016-11-06 | A kind of compass for math teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206287710U true CN206287710U (en) | 2017-06-30 |
Family
ID=59099132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621192463.3U Expired - Fee Related CN206287710U (en) | 2016-11-06 | 2016-11-06 | A kind of compass for math teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206287710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107718953A (en) * | 2017-10-26 | 2018-02-23 | 绍兴柯桥雷霄机械科技有限公司 | A kind of compasses for teaching of fix stably |
-
2016
- 2016-11-06 CN CN201621192463.3U patent/CN206287710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107718953A (en) * | 2017-10-26 | 2018-02-23 | 绍兴柯桥雷霄机械科技有限公司 | A kind of compasses for teaching of fix stably |
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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: 20170630 Termination date: 20171106 |