CN206287711U - A kind of mathematical combination chi - Google Patents
A kind of mathematical combination chi Download PDFInfo
- Publication number
- CN206287711U CN206287711U CN201621220892.7U CN201621220892U CN206287711U CN 206287711 U CN206287711 U CN 206287711U CN 201621220892 U CN201621220892 U CN 201621220892U CN 206287711 U CN206287711 U CN 206287711U
- Authority
- CN
- China
- Prior art keywords
- arc block
- ruler
- hole
- round bar
- spring
- 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
Links
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of mathematical combination chi, including casing, ruler and arc block, a straight flute and arc block groove are respectively equipped with the tank floor, the ruler is arranged in straight flute, arc block is arranged in arc block groove, the ruler both sides are equipped with a blind hole, the arc block is located on the both sides of openend and is equipped with a through hole, a round bar is equipped with through hole, round bar one end extends to the external world, and fixedly mount a pulling block, the outer ring face of round bar is provided with a spring, spring one end is fixedly connected with the internal face of through hole, spring one end is fixedly connected with corresponding pulling block.The utility model simple structure, it is easy to use, carrying is facilitated by casing, when needing to use, arc block can be inserted in corresponding blind hole by the round bar of both sides, so that arc block and ruler constitute a combination ruler for having picture circle, drawing straight line and measuring angle, so as to increased the efficiency attended class.
Description
Technical field
The utility model is related to a kind of mathematical combination chi.
Background technology
At present, in actual mathematical teaching process, compasses, ruler, protractor etc. educational aid are often used, but
Present compasses, ruler, protractor is all separate from setting so that need constantly replacing, serious waste when in use
The time of teaching, reduce the quality of teaching, and due to being to be independently arranged so that it is very inconvenient when carrying, and
It is easily lost.
Utility model content
To solve the above problems, the utility model provides a kind of simple structure, easy to carry, can effectively by both groups
It is combined, greatly facilitates and use, so as to improves the mathematical combination chi of quality of instruction.
To achieve the above object, the technical scheme that the utility model is taken is：
A kind of mathematical combination chi, including casing, ruler and arc block, be respectively equipped with the tank floor straight flute and
Arc block groove, the ruler is arranged in straight flute, and arc block is arranged in arc block groove, and a positioning is provided with the middle of the ruler
Hole, ruler both sides are equipped with a blind hole, and the circle of edge one on the arc block surface along arc block is provided with an angle value, arc
Block is located on the both sides of openend and is equipped with a through hole, and the through hole horizontally set is oppositely arranged between two through holes, in through hole
A round bar is provided with, round bar one end extends to the external world, and fixedly mounts a pulling block, and the outer ring face of round bar is provided with a spring, bullet
Spring one end is fixedly connected with the internal face of through hole, and spring one end is fixedly connected with corresponding pulling block.
As preferred technical scheme, a case lid is fixedly mounted by hinge on casing, the fixed installation of casing upper end is on the other hand
.
Magnet layer is fixedly mounted as preferred technical scheme, on the bottom surface of ruler and arc block.
Used as preferred technical scheme, casing and case lid are made up of wood materials.
Used as preferred technical scheme, ruler and arc block are made up of plastic material.
The utility model has the advantages that：The utility model simple structure, it is easy to use, facilitated by casing
Carry, when needing to use, arc block can be inserted in corresponding blind hole by the round bar of both sides, so that arc block and ruler
Composition one has picture circle, the combination ruler of straight line and measuring angle is drawn, so as to increased the efficiency attended class.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the utility model embodiment structural representation after combining.
Specific embodiment
In order that the purpose of this utility model and advantage become more apparent, the utility model is entered with reference to embodiments
Row is further described.It should be appreciated that specific embodiment described herein is only used to explain the utility model, and without
In restriction the utility model.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of mathematical combination chi, including casing 5, the and of ruler 2
Arc block 12, is respectively equipped with a straight flute 6 and arc block groove 8 on the bottom surface of the casing 5, the ruler 2 is arranged at straight flute 6
Interior, arc block 12 is arranged in arc block groove 8, and a location hole 3 is provided with the middle of the ruler 2, and the location hole 3 is measurement angle
Location hole, the both sides of ruler 2 are equipped with a blind hole 7, and the circle of edge one on the surface of arc block 12 along arc block 12 is provided with one
Angle value 13, arc block 12 is located on the both sides of openend and is equipped with a through hole (unmarked), the through hole horizontally set, and two lead to
It is oppositely arranged between hole, a round bar 11 is equipped with through hole, the one end of round bar 11 extends to the external world, and fixedly mounts a pulling block 10,
The outer ring face of round bar 11 is provided with a spring 9, and the one end of spring 9 is fixedly connected with the internal face of through hole, the one end of spring 9 with
Corresponding pulling block 10 is fixedly connected.
In the present embodiment, a case lid 1 is fixedly mounted by hinge on casing 5, the fixed installation of the upper end of casing 5 is on the other hand 4.
Magnet layer (not shown) is fixedly mounted in the present embodiment, on the bottom surface of ruler 2 and arc block 12.
In the present embodiment, casing 5 and case lid 1 are made up of wood materials, increased aesthetic property；Ruler 2 and arc block 12 by
Plastic material is made, and alleviates weight, facilitates carrying.
Operation principle：When straight line is drawn, directly ruler can be taken out from casing can the setting-out on blackboard, drawing circle
During shape, by the assembly of arc block on ruler, when assembled, first pass through pulling block and pull out the round bar being located in through hole, at this moment will
Parallel is positioned at the openend of arc block, and makes that the blind hole on ruler is relative with the through hole on arc block openend to be set
Put, after alignment, put down pulling block, inserted round bar in corresponding blind hole under the bounce of spring, so that ruler and arc
Block is combined, and due to being flexibly connected between arc block and ruler, is drawing bowlder, and arc block first is arranged at into ruler
Lower end, along arc block inner ring draw a semicircle, then by arc block with round bar as axial rotary on turn over, be arranged at arc block
The upper end of ruler, the inner ring further along arc block draws a semicircle, and two semicircles can just be combined into a complete circle, wherein,
Due to being provided with angle value on the surface of arc block, so as to can effectively measure angle by arc block.
Wherein, when carrying, ruler and arc block can be respectively arranged in the corresponding groove of box house, cover case
Lid, is walked about by hand can just hold casing.
This specific implementation simple structure, it is easy to use, carrying is facilitated by casing, when needing to use, arc block energy
Inserted in corresponding blind hole by the round bar of both sides so that arc block and ruler constitute one there is picture circle, draw straight line and
The combination ruler of measuring angle, so as to increased the efficiency attended class.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of mathematical combination chi, it is characterised in that：Including casing, ruler and arc block, it is respectively equipped with the tank floor
One straight flute and arc block groove, the ruler are arranged in straight flute, and arc block is arranged in arc block groove, in the middle of the ruler
A location hole is provided with, ruler both sides are equipped with a blind hole, the circle of edge one on the arc block surface along arc block is provided with one
Angle value, arc block is located on the both sides of openend and is equipped with a through hole, the through hole horizontally set, relative between two through holes to set
Put, be equipped with a round bar in through hole, round bar one end extends to the external world, and fixedly mounts a pulling block, the outer ring face of round bar on set
There is a spring, spring one end is fixedly connected with the internal face of through hole, and spring one end is fixedly connected with corresponding pulling block.
2. mathematical combination chi according to claim 1, it is characterised in that：A case lid is fixedly mounted by hinge on casing,
Casing upper end fixedly mounts proficiency handle.
3. mathematical combination chi according to claim 1, it is characterised in that：Fixedly mounted on the bottom surface of ruler and arc block
One magnet layer.
4. mathematical combination chi according to claim 1, it is characterised in that：Casing and case lid are made up of wood materials.
5. mathematical combination chi according to claim 1, it is characterised in that：Ruler and arc block are made up of plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220892.7U CN206287711U (en) | 2016-11-14 | 2016-11-14 | A kind of mathematical combination chi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220892.7U CN206287711U (en) | 2016-11-14 | 2016-11-14 | A kind of mathematical combination chi |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206287711U true CN206287711U (en) | 2017-06-30 |
Family
ID=59099553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220892.7U Expired - Fee Related CN206287711U (en) | 2016-11-14 | 2016-11-14 | A kind of mathematical combination chi |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206287711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605992A (en) * | 2018-12-06 | 2019-04-12 | 陕西理工大学 | A kind of damping fixture block location type drawing composite ruler |
-
2016
- 2016-11-14 CN CN201621220892.7U patent/CN206287711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605992A (en) * | 2018-12-06 | 2019-04-12 | 陕西理工大学 | A kind of damping fixture block location type drawing composite ruler |
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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 |
Granted publication date: 20170630 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |