CN204210202U - Mathematics drawing instruments - Google Patents
Mathematics drawing instruments Download PDFInfo
- Publication number
- CN204210202U CN204210202U CN201420699503.8U CN201420699503U CN204210202U CN 204210202 U CN204210202 U CN 204210202U CN 201420699503 U CN201420699503 U CN 201420699503U CN 204210202 U CN204210202 U CN 204210202U
- Authority
- CN
- China
- Prior art keywords
- connects
- elastic ring
- jack
- opening elastic
- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
Mathematics drawing instruments, its composition comprises: cylinder, described cylinder has through hole, described through hole is inserted with round bar, the bottom of described round bar has screwed hole, described screwed hole connecting screw rod, described screw rod connecting sucker or cone point, the top of described round bar connects hand and pinches bar, described hand is pinched bar and is had rubbing surface, described cylinder has T shape half jack, described T shape half jack connects T shape plug-in unit, described T shape plug-in unit connects combination extension bar, described combination extension bar connection opening elastic ring, the side of the opening part of described opening elastic ring connects elasticity triangle and hooks plate, the described opening elastic ring of the opposite side of the opening part of described opening elastic ring connects one group and tiltedly hooks plate, the two ends of described oblique hook plate all connect swash plate, described swash plate connects connecting plate, opening elastic ring described in described connecting plate connects, described opening elastic ring clamps chalk.The utility model is used for mathematics and draws.
Description
Technical field
the utility model relates to a kind of mathematics drawing instruments.
Background technology
existing compasses are all cone point location, and present blackboard is harder, is not easy to position, and existing compasses cannot draw the larger circle of diameter, drawing or classroom use inconvenient.
Summary of the invention
the purpose of this utility model is to provide one and locates conveniently, uses mathematics drawing instruments flexibly.
above-mentioned object is realized by following technical scheme:
a kind of mathematics drawing instruments, its composition comprises: cylinder, described cylinder has through hole, described through hole is inserted with round bar, the bottom of described round bar has screwed hole, described screwed hole connecting screw rod, described screw rod connecting sucker or cone point, the top of described round bar connects hand and pinches bar, described hand is pinched bar and is had rubbing surface, described cylinder has jack, described round bar has spliced eye, insert L shape Flexible Connector between described spliced eye and described jack to locate, described cylinder has T-shaped half jack, described T-shaped half jack connects T-shaped plug-in unit, described T-shaped plug-in unit connects combination extension bar, described combination extension bar connection opening elastic ring, the side of the opening part of described opening elastic ring connects elasticity triangle and hooks plate, the described opening elastic ring of the opposite side of the opening part of described opening elastic ring connects one group and tiltedly hooks plate, the two ends of described oblique hook plate all connect swash plate, described swash plate connects connecting plate, opening elastic ring described in described connecting plate connects, described opening elastic ring clamps pencil or chalk.
described mathematics drawing instruments, described combination extension bar comprises mobile jib, described mobile jib has circular hole, described circular hole inserts extension bar, the top of described circular hole connects triangle chute, the bottom of described circular hole connects del chute, described triangle chute grafting trigonal slider, described del chute grafting del slide block, described trigonal slider is all connected described extension bar with described del slide block, cylinder described in described mobile jib connects, the opening elastic ring described in described extension bar connects.
described mathematics drawing instruments, draw bowlder and pull up described L shape Flexible Connector, described opening elastic ring has jack and lower jack, described upper jack and described lower jack be not diametrically same, described upper jack connects upper plunger, described lower jack connects lower plunger, is connected between described upper plunger and described lower plunger by herringbone elastic component.
beneficial effect:
1. the cylinder that the utility model adopts can rotate around round bar, conveniently realizes the object of picture circle, can also be positioned between cylinder and round bar by L shape Flexible Connector, easy to use.
combination extension bar of the present utility model can elongate and can shorten, and can either draw the circle that diameter is very large, also can draw the smaller circle of diameter, uses flexibly.
opening elastic ring of the present utility model can step up pencil or chalk flexibly, and tiltedly hook plate and elasticity triangle hook plate with the use of the chucking power adding opening elastic ring, easy to use, flexible.
accurate positioning between the mobile jib that the utility model adopts and extension bar, easy to connect, triangle chute, del chute, trigonal slider, del slide block slide along certain direction with the use of making extension bar, can draw circle accurately, speed is fast, accurately use is flexible.
accompanying drawing illustrates:
accompanying drawing 1 is the structural representation of this product.
detailed description of the invention:
embodiment 1:
a kind of mathematics drawing instruments, its composition comprises: cylinder 1, described cylinder has through hole 2, described through hole is inserted with round bar 3, the bottom of described round bar has screwed hole, described screwed hole connecting screw rod 4, described screw rod connecting sucker 5, the top of described round bar connects hand and pinches bar 6, described hand is pinched bar and is had rubbing surface 7, described cylinder has T-shaped half jack 8, described T-shaped half jack connects T-shaped plug-in unit 9, described T-shaped plug-in unit connects combination extension bar, described combination extension bar connection opening elastic ring 10, the side of the opening part of described opening elastic ring connects elasticity triangle and hooks plate 11, the described opening elastic ring of the opposite side of the opening part of described opening elastic ring connects one group and tiltedly hooks plate 12, the two ends of described oblique hook plate all connect swash plate 13, described swash plate connects connecting plate 14, opening elastic ring described in described connecting plate connects, described opening elastic ring clamps chalk 15.
embodiment 2:
mathematics drawing instruments described in embodiment 1, described combination extension bar comprises mobile jib 16, described mobile jib has circular hole 17, described circular hole inserts extension bar 18, the top of described circular hole connects triangle chute 19, the bottom of described circular hole connects del chute 20, described triangle chute grafting trigonal slider 21, described del chute grafting del slide block 22, described trigonal slider is all connected described extension bar with described del slide block, cylinder described in described mobile jib connects, opening elastic ring described in described extension bar connects.
embodiment 3:
mathematics drawing instruments described in embodiment 2, draw bowlder and pull up described L shape Flexible Connector 23, described opening elastic ring has jack 24 and lower jack 25, described upper jack and described lower jack be not diametrically same, described upper jack connects upper plunger 26, described lower jack connects lower plunger 27, is connected between described upper plunger and described lower plunger by herringbone elastic component 28.
embodiment 4:
mathematics drawing instruments described in embodiment 1, its composition comprises: cylinder, described cylinder has through hole, described through hole is inserted with round bar, the bottom of described round bar has screwed hole, described screwed hole connecting screw rod, described screw rod connects cone point, the top of described round bar connects hand and pinches bar, described hand is pinched bar and is had rubbing surface, described cylinder has jack 29, described round bar has spliced eye 30, insert L shape Flexible Connector between described spliced eye and described jack to locate, described cylinder has T-shaped half jack, described T-shaped half jack connects T-shaped plug-in unit, described T-shaped plug-in unit connects combination extension bar, described combination extension bar connection opening elastic ring, the side of the opening part of described opening elastic ring connects elasticity triangle and hooks plate, the described opening elastic ring of the opposite side of the opening part of described opening elastic ring connects one group and tiltedly hooks plate, the two ends of described oblique hook plate all connect swash plate, described swash plate connects connecting plate, opening elastic ring described in described connecting plate connects, described opening elastic ring clamps pencil.
embodiment 5:
mathematics drawing instruments described in embodiment 1, its composition comprises: cylinder, described cylinder has through hole, described through hole is inserted with round bar, the bottom of described round bar has screwed hole, described screwed hole connecting screw rod, described screw rod connecting sucker or cone point, the top of described round bar connects hand and pinches bar, described hand is pinched bar and is had rubbing surface, described cylinder has jack, described round bar has spliced eye, insert L shape Flexible Connector between described spliced eye and described jack to locate, described cylinder has T-shaped half jack, described T-shaped half jack connects T-shaped plug-in unit, described T-shaped plug-in unit connects combination extension bar, described combination extension bar connection opening elastic ring, the side of the opening part of described opening elastic ring connects elasticity triangle and hooks plate, the described opening elastic ring of the opposite side of the opening part of described opening elastic ring connects one group and tiltedly hooks plate, the two ends of described oblique hook plate all connect swash plate, described swash plate connects connecting plate, opening elastic ring described in described connecting plate connects, described opening elastic ring clamps chalk.
Claims (3)
1. mathematics drawing instruments, its composition comprises: cylinder, it is characterized in that: described cylinder has through hole, described through hole is inserted with round bar, the bottom of described round bar has screwed hole, described screwed hole connecting screw rod, described screw rod connecting sucker or cone point, the top of described round bar connects hand and pinches bar, described hand is pinched bar and is had rubbing surface, described cylinder has jack, described round bar has spliced eye, insert L shape Flexible Connector between described spliced eye and described jack to locate, described cylinder has T-shaped half jack, described T-shaped half jack connects T-shaped plug-in unit, described T-shaped plug-in unit connects combination extension bar, described combination extension bar connection opening elastic ring, the side of the opening part of described opening elastic ring connects elasticity triangle and hooks plate, the described opening elastic ring of the opposite side of the opening part of described opening elastic ring connects one group and tiltedly hooks plate, the two ends of described oblique hook plate all connect swash plate, described swash plate connects connecting plate, opening elastic ring described in described connecting plate connects, described opening elastic ring clamps pencil or chalk.
2. mathematics drawing instruments according to claim 1, it is characterized in that: described combination extension bar comprises mobile jib, described mobile jib has circular hole, described circular hole inserts extension bar, the top of described circular hole connects triangle chute, the bottom of described circular hole connects del chute, described triangle chute grafting trigonal slider, described del chute grafting del slide block, described trigonal slider is all connected described extension bar with described del slide block, cylinder described in described mobile jib connects, opening elastic ring described in described extension bar connects.
3. mathematics drawing instruments according to claim 2, it is characterized in that: draw bowlder and pull up described L shape Flexible Connector, described opening elastic ring has jack and lower jack, described upper jack and described lower jack be not diametrically same, described upper jack connects upper plunger, described lower jack connects lower plunger, is connected between described upper plunger and described lower plunger by herringbone elastic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699503.8U CN204210202U (en) | 2014-11-20 | 2014-11-20 | Mathematics drawing instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699503.8U CN204210202U (en) | 2014-11-20 | 2014-11-20 | Mathematics drawing instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204210202U true CN204210202U (en) | 2015-03-18 |
Family
ID=52978906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699503.8U Expired - Fee Related CN204210202U (en) | 2014-11-20 | 2014-11-20 | Mathematics drawing instruments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204210202U (en) |
-
2014
- 2014-11-20 CN CN201420699503.8U patent/CN204210202U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |