CN202879043U - Elliptic trammel - Google Patents
Elliptic trammel Download PDFInfo
- Publication number
- CN202879043U CN202879043U CN 201220592992 CN201220592992U CN202879043U CN 202879043 U CN202879043 U CN 202879043U CN 201220592992 CN201220592992 CN 201220592992 CN 201220592992 U CN201220592992 U CN 201220592992U CN 202879043 U CN202879043 U CN 202879043U
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- CN
- China
- Prior art keywords
- leg
- fixing
- draw
- handle
- groove
- 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 - Lifetime
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Abstract
The utility model discloses an elliptic trammel which comprises a handle, an upper disk, a lower disk, a fixing leg, a drawing leg, a clamp groove, a movable leg, a fixing ring, a drawing pen, a telescopic connection rod, a clamp rod and a fixing knob. The handle penetrates through the center of the upper disk and is vertically and fixedly connected with the center of the lower disk, two sides of the circumference of the upper disk are hinged with the fixing leg and the drawing leg along the radial direction respectively, the clamp groove is arranged on one optional circumference of the lower disk, the lower end of the fixing leg is provided with a pointed leg, the drawing leg is shorter than the fixing leg, the movable leg is hinged at the lower end of the drawing leg along the radial direction by taking the handle as a center, the fixing ring is fixedly connected at the lower end of the movable leg, the fixing knob is arranged on the fixing ring, the drawing pen and the fixing ring are firmly fixed by rotating the fixing knob, the clamp rod is arranged at the top end of the telescopic connection rod, can slide in the clamp groove and is movably connected with the clamp groove, and the lower end of the telescopic connection rod is hinged with the middle of the movable leg. By the aid of the elliptic trammel, and ellipses and circles with various shapes and sizes can be conveniently and rapidly drawn.
Description
Technical field
The present invention relates to a kind of ellipsograph.
Background technology
When drawing ellipse, normally ellipse is divided into four sections camber lines, and then pieces together, or draw with oval template, draw in a word oval very inconvenient.Therefore, study a lot of of ellipsograph, but there is complex structure in existing disclosed ellipsograph, uses the problems such as inconvenient, is not popularized.
Summary of the invention
The present invention overcomes the defective of prior art, and a kind of simple in structure, handled easily is provided, and can draw the ellipsograph of oval and any circle diagram shape of any eccentricity.
Ellipsograph of the present invention is achieved by the following technical solution:
A kind of ellipsograph, comprise handle 1, upper disk 2, lower disc 3, fixing feet 4, drawing pin 5,, draw-in groove 6, movable leg 7, retainer ring 8, drawing pen 9, extensible link 10, kelly 11, fixing button 12.Described handle 1 passes from the center of upper disk 2, is fixedly connected with the central vertical of lower disc 3.The both sides of described upper disk 2 diameters are hinged at radial direction with fixing feet 4 and drawing pin 5 respectively.Any diameter of described lower disc 3 is provided with draw-in groove 6.The lower end of described fixing feet 4 is spur.Described drawing pin 5 is short than fixing feet 4, the lower end of drawing pin 5, the articulated movable leg 7 of the radial direction centered by handle 1, the lower end of described movable leg 7 is being fixedly connected with retainer ring 8, described retainer ring 8 is provided with fixing button 12, rotation fixing button 12 is reinforced drawing pen 9 and retainer ring 8, the middle part of the lower end of described extensible link 10 and movable leg 7 is hinged, the kelly 11 that the top of extensible link 10 is provided with, described kelly 11 can be flexibly connected in draw-in groove 6 interior slips and with draw-in groove 6.
During drawing, the spur of fixing feet 4 is aimed at the center of circle of drawing ellipse, and lower disc 3 synchronous rotaries during rotary handle 1, lower disc 3 drive extensible link 10, movable leg 7, drawing pen 9 and drawing pin 5 and 2 rotations of upper disk, handle 1 turns around, and drawing pen 9 just draws ellipse or circle.The major radius of determining ellipse is regulated in elongating or shortening of extensible link 10, and it is longer that extensible link 10 stretches, and oval major radius is longer, otherwise, shorter; Kelly 11 is regulated from the distance in lower disc 3 centers of circle with the fixing point of draw-in groove 6 and is determined oval short radius, fixing point from lower disc 3 centers of circle more close to, oval short radius is longer, otherwise, shorter, when the fixing point of kelly 11 and draw-in groove 6 and lower disc 3 centers of circle were overlapping, what draw was round.
Use ellipsograph of the present invention, can draw out quickly and easily the ellipse of various shapes and size, also can draw out circle.Ellipsograph of the present invention, simple in structure, be easy to promote.
Description of drawings
Fig. 1 is Ellipsograph structure schematic diagram of the present invention;
Among the figure: 1, handle, 2, upper disk, 3, lower disc, 4, fixing feet, 5, the drawing pin, 6, draw-in groove, 7, movable leg, 8, retainer ring, 9, drawing pen, 10, extensible link, 11, kelly, 12, fixing button.
The specific embodiment
Below in conjunction with accompanying drawing ellipsograph of the present invention is further elaborated.
Ellipsograph of the present invention, as shown in Figure 1, comprise handle 1, upper disk 2, lower disc 3, fixing feet 4, drawing pin 5,, draw-in groove 6, movable leg 7, retainer ring 8, drawing pen 9, extensible link 10, kelly 11, fixing button 12.Handle 1 passes from the center of upper disk 2, is fixedly connected with the central vertical of lower disc 3; Both sides at upper disk 2 diameters are hinged at radial direction with fixing feet 4 and drawing pin 5 respectively; Any diameter at lower disc 3 is provided with draw-in groove 6; The lower end of fixing feet 4 is spur; Drawing pin 5 is short than fixing feet 4, the articulated movable leg 7 of radial direction in the lower end of drawing pin 5, centered by handle 1; Be fixedly connected with retainer ring 8 in the lower end of movable leg 7; Retainer ring 8 is provided with fixing button 12, and rotation fixing button 12 is reinforced drawing pen 9 and retainer ring 8; The kelly 11 that the top of extensible link 10 is provided with, kelly 11 can be flexibly connected in draw-in groove 6 interior slips and with draw-in groove 6, and the middle part of the lower end of extensible link 10 and movable leg 7 is hinged.
During operation, at first by elongating or shortening the major radius of determining to draw ellipse of extensible link 10, it is longer that extensible link 10 stretches, and oval major radius is longer, otherwise, shorter; Determine oval short radius with the fixing point of draw-in groove 6 from the distance in lower disc 3 centers of circle by regulating kelly 11, fixing point from lower disc 3 centers of circle more close to, oval short radius is longer, otherwise, shorter; Then the spur of fixing feet 4 is aimed at and drawn the oval center of circle, rotary handle 1 turns around, and drawing pen 9 draws an ellipse.When the fixing point of kelly 11 and draw-in groove 6 and lower disc 3 centers of circle are overlapping, just draw a circle.
Claims (2)
1. ellipsograph, comprise handle (1), upper disk (2), lower disc (3), fixing feet (4), drawing pin (5), draw-in groove (6), movable leg (7), retainer ring (8), drawing pen (9), extensible link (10), kelly (11), fixing button (12), handle (1) passes from the center of upper disk (2), be fixedly connected with the central vertical of lower disc (3), the both sides of upper disk (2) diameter are hinged at radial direction with fixing feet (4) and drawing pin (5) respectively, any diameter of lower disc (3) is provided with draw-in groove (6), the lower end of fixing feet (4) is spur, drawing pin (5) is short than fixing feet (4), the lower end of drawing pin (5), the articulated movable leg of radial direction centered by handle (1), the lower end of movable leg (7) is being fixedly connected with retainer ring (8), the middle part of the lower end of extensible link (10) and movable leg (7) is hinged, the kelly (11) that the top of extensible link (10) is provided with, described kelly (11) can slide in draw-in groove (6), and be flexibly connected with draw-in groove (6).
2. ellipsograph according to claim 1 is characterized in that described retainer ring (8) is provided with fixing button (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592992 CN202879043U (en) | 2012-11-12 | 2012-11-12 | Elliptic trammel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592992 CN202879043U (en) | 2012-11-12 | 2012-11-12 | Elliptic trammel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202879043U true CN202879043U (en) | 2013-04-17 |
Family
ID=48070503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220592992 Expired - Lifetime CN202879043U (en) | 2012-11-12 | 2012-11-12 | Elliptic trammel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202879043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941762A (en) * | 2012-11-12 | 2013-02-27 | 张一兵 | Ellipsograph |
| CN109515039A (en) * | 2018-11-18 | 2019-03-26 | 满洪流 | One kind can collapse formula curve tracing tool |
-
2012
- 2012-11-12 CN CN 201220592992 patent/CN202879043U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941762A (en) * | 2012-11-12 | 2013-02-27 | 张一兵 | Ellipsograph |
| CN109515039A (en) * | 2018-11-18 | 2019-03-26 | 满洪流 | One kind can collapse formula curve tracing tool |
| CN109515039B (en) * | 2018-11-18 | 2023-10-17 | 满洪流 | Foldable curve drawing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130417 Effective date of abandoning: 20150128 |
|
| RGAV | Abandon patent right to avoid regrant |