CN202557083U - Triangular drawing rule - Google Patents
Triangular drawing rule Download PDFInfo
- Publication number
- CN202557083U CN202557083U CN2012201016624U CN201220101662U CN202557083U CN 202557083 U CN202557083 U CN 202557083U CN 2012201016624 U CN2012201016624 U CN 2012201016624U CN 201220101662 U CN201220101662 U CN 201220101662U CN 202557083 U CN202557083 U CN 202557083U
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- CN
- China
- Prior art keywords
- limit chi
- limit
- chi
- edge ruler
- model
- 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.)
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Abstract
The utility model discloses a triangular drawing rule and belongs to the technical field of teaching aids. The triangular drawing rule comprises a first edge ruler, a second edge ruler and a third edge ruler. The triangular drawing rule is characterized in that the middle portions of the first edge ruler, the second edge ruler and the third edge ruler are provided with slideways, fixed screws penetrate through the slideways, the first edge ruler and the second edge ruler are fixed by one fixed screw, the second edge ruler and the third edge ruler are fixed by one fixed screw, and the first edge ruler and the third edge ruler are fixed by one fixed screw. The triangular drawing rule is simple in structure and easy to adjust.
Description
Technical field
The utility model is divided by International Patent Classification (IPC) (IPC) and is belonged to physical piece, education; Cryptography; Show; Advertisement; Big type of seal, education or demonstration equipment; Be used to the apparatus of imparting knowledge to students or communicating by letter with blind person, deaf person or mute; Model; Planetarium; Tellurion; Map; The figure watch group, the model that science, medical science or mathematics are used, the device technique field that for example is used to demonstrate with full-size(d), more specifically saying so relates to a kind of triangle drawing rule.
Background technology
Triangle is to be joined end to end in order by three line segments, and the planar graph of a closure of composition is the most basic polygon.
In geometry, triangle is unusual part and parcel.Triangle often need be drawn in the classroom on blackboard when how much contents of professor, drawing some special triangles; As: equilateral triangle, isosceles triangle; And when drawing congruence, similar triangles,, therefore draw very inconvenient because drawing tool can not be regulated.
Summary of the invention
The utility model is exactly to the problems referred to above, and a kind of simple in structure, triangle drawing rule of being easy to regulate is provided.
In order to realize the above-mentioned purpose of the utility model; The utility model adopts following technical scheme; The utility model comprises the first limit chi, the second limit chi and the 3rd limit chi; The middle part of its structural feature first limit chi, the second limit chi and the 3rd limit chi all has slideway, between the first limit chi and the second limit chi, between the second limit chi and the 3rd limit chi, all fix through the hold-down screw that passes slideway between the first limit chi and the 3rd limit chi.
The described first limit chi, the second limit chi and the 3rd limit chi all adopt plastic material.
Has scale on the first limit chi, the second limit chi and the 3rd limit chi.
The beneficial effect of the utility model:
(1) simple in structure
The utility model comprises the first limit chi, the second limit chi and the 3rd limit chi; The middle part of the first limit chi, the second limit chi and the 3rd limit chi all has slideway, between the first limit chi and the second limit chi, between the second limit chi and the 3rd limit chi, all fix through the hold-down screw that passes slideway between the first limit chi and the 3rd limit chi; Therefore, the member that the utility model uses is less, makes easily.
(2) easy to use
When the utility model needs the leg-of-mutton shape of drafting in adjustment, can carry out, can obtain the triangle of arbitrary shape like this through the slip hold-down screw; Very easy to use.
Simultaneously, the utility model can keep shape to draw a plurality of identical triangles after adjustment finishes, and has made things convenient for the teacher.
(3) drafting triangle speed is fast
The utility model only need be drawn according to the triangle that three limit chis surround and gets final product when drawing triangle, again a limit, a limit come picture, render speed is fast.
Description of drawings
Fig. 1 is the structural representation of the utility model.
In the accompanying drawing, 1 is hold-down screw, and 2 is the first limit chi, and 3 is the second limit chi, and 4 is the 3rd limit chi, and 5 is slideway.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model comprises the first limit chi 2, the second limit chi 3 and the 3rd limit chi 4; The middle part of the first limit chi 2, the second limit chi 3 and the 3rd limit chi 4 all has between slideway 5, the first limit chis 2 and the second limit chi 3, between the second limit chi 3 and the 3rd limit chi 4, all fix between the first limit chi 2 and the 3rd limit chi 4 through the hold-down screw 1 that passes slideway 5.
The described first limit chi 2, the second limit chi 3 and the 3rd limit chi 4 all adopt plastic material.
Has scale on the first limit chi 2, the second limit chi 3 and the 3rd limit chi 4.
Be with being appreciated that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.
Claims (3)
1. triangle drawing rule; Comprise the first limit chi (2), the second limit chi (3) and the 3rd limit chi (4); The middle part that it is characterized in that the first limit chi (2), the second limit chi (3) and the 3rd limit chi (4) all has slideway (5), between the first limit chi (2) and the second limit chi (3), between the second limit chi (3) and the 3rd limit chi (4), all fix through the hold-down screw (1) that passes slideway (5) between the first limit chi (2) and the 3rd limit chi (4).
2. triangle drawing rule according to claim 1 is characterized in that the first limit chi (2), the second limit chi (3) and the 3rd limit chi (4) all adopt plastic material.
3. triangle drawing rule according to claim 1 is characterized in that having scale on the first limit chi (2), the second limit chi (3) and the 3rd limit chi (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201016624U CN202557083U (en) | 2012-03-15 | 2012-03-15 | Triangular drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201016624U CN202557083U (en) | 2012-03-15 | 2012-03-15 | Triangular drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557083U true CN202557083U (en) | 2012-11-28 |
Family
ID=47206777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201016624U Expired - Fee Related CN202557083U (en) | 2012-03-15 | 2012-03-15 | Triangular drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196752A (en) * | 2015-11-17 | 2015-12-30 | 陈俞任 | Aluminium molybdenum alloy circular groove corner pointer adjusting teaching set square |
-
2012
- 2012-03-15 CN CN2012201016624U patent/CN202557083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196752A (en) * | 2015-11-17 | 2015-12-30 | 陈俞任 | Aluminium molybdenum alloy circular groove corner pointer adjusting teaching set square |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130315 |