CN205573422U - A circular cone curved surface scribing instrument for mathematical education - Google Patents
A circular cone curved surface scribing instrument for mathematical education Download PDFInfo
- Publication number
- CN205573422U CN205573422U CN201620048194.7U CN201620048194U CN205573422U CN 205573422 U CN205573422 U CN 205573422U CN 201620048194 U CN201620048194 U CN 201620048194U CN 205573422 U CN205573422 U CN 205573422U
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- CN
- China
- Prior art keywords
- seat
- mathematical education
- ruling
- curved surface
- utility
- 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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- Electrically Operated Instructional Devices (AREA)
Abstract
The utility model provides a circular cone curved surface scribing instrument for mathematical education, it to be including the seat of ruling, the seat of ruling be conical structure, installs a rotating head at a top of ruling, the rotating head and the seat fixed connection that rules, install a cardboard on the marking off seat the inboard of cardboard is equipped with convex opening, and the cardboard passes through convex opening slidable connects on the seat of ruling, right angle shape's positioning head still is equipped with in the outside of cardboard. The utility model discloses convenient to use need not with the help of other instruments, just can draw the curved surface of a plurality of radians simultaneously, and the precision is good, with low costs moreover, and it is also very convenient to carry.
Description
Technical field
This utility model relates to a kind of teaching apparatus for mathematics, and a kind of conical surface for mathematical education is rule
Instrument, belongs to teaching aid technical field.
Background technology
During the most current mathematical education, the usual way that teachers teach is the figure drawing correspondence on blackboard
Shape, explains the most targetedly, says while carry out solving step by step by the way of boost line by drawing simultaneously.Such as, exist
When drawing the curved surface of different radian, owing to radian is difficult to grasp, light is extremely difficult to requirement with empty-handedly drawing a picture, and thus needs to use and draws
Line device.The most structure of existing scriber is relatively easy, and is mostly used to picture straight line, only graduated disc, they be
Being typically during line first to determine a point on graduated disc, coupling together with ruler instrument, this instrument can not complete the most again
Draw the demand of camber line, and use also inconvenient.
Utility model content
For above-mentioned deficiency of the prior art, main purpose of the present utility model is to solve existing picture on classroom at present
The problem that during camber line curved surface, difficulty is bigger, and a kind of conical surface lining instrument that convenient, fast can draw conical surface is provided.
The technical solution of the utility model: a kind of conical surface lining instrument for mathematical education, it is characterised in that include
Line seat, described line seat is conical structure, is provided with a swivel head, described swivel head and line at the top of line seat
Seat is fixing to be connected；Described line seat is provided with a clamp, is provided with the opening of circular arc, clamp in the inner side of described clamp
Slidably it is connected to by the opening of described circular arc rule on seat；The location of rectangular shaped it is additionally provided with in the outside of clamp
Head.
Optimally, being provided with at least three marking groove on the side of described line seat, described marking groove is and rules
The arc that seating face matches.This utility model can preset conventional arc-shaped curved surface line end by arranging marking groove, so may be used
Directly to show, convenient directly perceived.
Optimally, being additionally provided with an Anti-skid seat in the bottom of described line seat, described Anti-skid seat sets the disk of cavity in being
Structure.Line seat can be played the effect of reinforcing location by installing Anti-skid seat, and the design of internal cavities can facilitate
Manual operation, the most laborsaving.
Optimally, described swivel head is provided with anti-slip veins.Here arranging anti-slip veins is for the ease of manual rotation, is difficult to
Skid.
Relative to prior art, this utility model has the advantages that
It is 1, easy to use: lining instrument of the present utility model only need to be used alone the line work that can complete different radians,
Without by other instruments, operation is very easy.
2, the curved surface of multiple radian can be drawn: owing to lining instrument of the present utility model can be with the position of flexible curved surface simultaneously
Put, therefore can draw the curved surface of different radian, the most not only improved efficiency, and the demand of different angles, radian can be met.
3, precision is good, low cost, carries the most very convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of conical surface lining instrument for mathematical education of this utility model.
In figure, 1 line seat, 2 swivel heads, 3 clamps, 4 positioning heads, 5 marking groove, 6 Anti-skid seats.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of conical surface lining instrument for mathematical education of the present utility model, including line seat 1, institute
Stating line seat 1 is conical structure, is provided with a swivel head 2 at the top of seat 1 of ruling, is provided with anti-on described swivel head 2
Sliding stricture of vagina, described swivel head 2 is fixing with line seat 1 to be connected.Described line seat 1 is provided with a clamp 3, at described clamp 3
Inner side be provided with the opening of circular arc, clamp 3 is slidably connected to by the opening of described circular arc rule on seat 1；At card
The outside of plate 3 is additionally provided with the positioning head 4 of rectangular shaped.The side of described line seat 1 is provided with at least three marking groove 5, institute
The marking groove 5 stated is the arc matched with seat 1 surface of ruling, and is additionally provided with an Anti-skid seat in the bottom of described line seat 1
6, described Anti-skid seat 6 sets the disc structure of cavity in being.
Lining instrument of the present utility model is easy to use, and structure is relatively easy, easy and simple to handle, shows directly perceived, has very
Good practicality.
It should be noted that above example is only in order to illustrate technical solutions of the utility model rather than restriction technologies scheme,
Although this utility model is explained in detail by applicant with reference to preferred embodiment, those of ordinary skill in the art should manage
Solve, those amendments that technical solutions of the utility model are carried out or equivalent, it is impossible to depart from the technical program objective and
Scope, all should contain in the middle of this utility model right.
Claims (4)
1. the conical surface lining instrument for mathematical education, it is characterised in that include seat (1) of ruling, described line seat (1)
For conical structure, being provided with a swivel head (2) at the top of line seat (1), described swivel head (2) is solid with line seat (1)
Fixed connection；Described line seat (1) is provided with a clamp (3), is provided with opening of circular arc in the inner side of described clamp (3)
Mouthful, clamp (3) is slidably connected to by the opening of described circular arc rule on seat (1)；It is additionally provided with in the outside of clamp (3)
The positioning head (4) of rectangular shaped.
A kind of conical surface lining instrument for mathematical education the most according to claim 1, it is characterised in that at described stroke
The side of line seat (1) is provided with at least three marking groove (5), and described marking groove (5) is and matches with seat of ruling (1) surface
Arc.
A kind of conical surface lining instrument for mathematical education the most according to claim 2, it is characterised in that at described stroke
The bottom of line seat (1) is additionally provided with an Anti-skid seat (6), and described Anti-skid seat (6) sets the disc structure of cavity in being.
A kind of conical surface lining instrument for mathematical education the most according to claim 3, it is characterised in that in described rotation
Rotary head (2) is provided with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048194.7U CN205573422U (en) | 2016-01-19 | 2016-01-19 | A circular cone curved surface scribing instrument for mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048194.7U CN205573422U (en) | 2016-01-19 | 2016-01-19 | A circular cone curved surface scribing instrument for mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205573422U true CN205573422U (en) | 2016-09-14 |
Family
ID=56882739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620048194.7U Expired - Fee Related CN205573422U (en) | 2016-01-19 | 2016-01-19 | A circular cone curved surface scribing instrument for mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205573422U (en) |
-
2016
- 2016-01-19 CN CN201620048194.7U patent/CN205573422U/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: 20160914 Termination date: 20170119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |