CN204749648U - Teaching is with location chi - Google Patents
Teaching is with location chi Download PDFInfo
- Publication number
- CN204749648U CN204749648U CN201520504938.7U CN201520504938U CN204749648U CN 204749648 U CN204749648 U CN 204749648U CN 201520504938 U CN201520504938 U CN 201520504938U CN 204749648 U CN204749648 U CN 204749648U
- Authority
- CN
- China
- Prior art keywords
- angle side
- location
- hypotenuse
- plane
- teaching
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model provides a teaching is with location chi, including first right -angle side, second right -angle side and hypotenuse, triangle -shaped is constituteed to first right -angle side, second right -angle side and hypotenuse, is provided with the standard scale on first right -angle side and the second right -angle side, and the lower extreme of the scale on the first right -angle side is provided with two fixing round hole, and first right -angle side between two fixing round hole belongs to and is provided with the horizontal bubble pipe on the plane, being provided with vertically protrusion board on the plane of second right -angle side place, being provided with curve fretwork portion on the protrusion board, the lateral part of curve fretwork portion is provided with perpendicular bubble tube, the edge of second right -angle side is provided with the location semicircle orifice of two keep (shenglvehao)at a certain distance awaies. Size location's process can audio -visual be demonstrated out to this location chi, and the student of being convenient for masters.
Description
Technical field
The utility model relates to a kind of teaching aid.
Background technology
Often need when carrying out the accurate positioning teaching of length to adopt ruler.Not about the positioning rule of teaching in prior art, be only common horizon rule, the limited precision that this horizon rule is measured, and can not demonstrate how to carry out length accuracy location intuitively.
Summary of the invention
In order to solve the above problem existed in background technology, the utility model provides a kind of teaching positioning rule, and this positioning rule can demonstrate out the process of sizing intuitively, is convenient to students.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of teaching positioning rule, comprise the first right-angle side, the second right-angle side and hypotenuse, it is characterized in that: described first right-angle side, the second right-angle side and hypotenuse composition triangle, leg-of-mutton centre is provided with leg-of-mutton hollow-out parts, first right-angle side and the second right-angle side are provided with master scale, the lower end of the scale on the first right-angle side is provided with two fixing circular holes, and the first right-angle side between two fixing circular holes is provided with horizontal bubbler tube in the plane;
Second right-angle side is provided with vertical protruding plate in the plane, protruding plate is provided with curve hollow-out parts, and the sidepiece of curve hollow-out parts is provided with vertical bubbler tube; The edge of the second right-angle side is provided with two location semicircle orifices kept at a certain distance away.
The beneficial effects of the utility model are:
1, the process of sizing can be demonstrated out intuitively, be convenient to students.
2, the degree of accuracy of location is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated
Fig. 1 is the structural representation of positioning rule described in the utility model.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and with detailed description of the invention, the utility model to be further described:
embodiment 1
As shown in Figure 1, a kind of teaching positioning rule, comprise the first right-angle side 1, second right-angle side 2 and hypotenuse 3, first right-angle side 1, second right-angle side 2 and hypotenuse 3 form triangle, leg-of-mutton centre is provided with leg-of-mutton hollow-out parts 4, first right-angle side 1 and the second right-angle side 2 are provided with master scale, and the first right-angle side that the lower end of the scale on the first right-angle side 1 is provided with between two fixing circular holes, 9, two fixing circular holes is provided with horizontal bubbler tube 8 in the plane;
Second right-angle side 2 is provided with vertical protruding plate 6 in the plane, protruding plate 6 is provided with curve hollow-out parts 10, and the sidepiece of curve hollow-out parts 10 is provided with vertical bubbler tube 7.The edge of the second right-angle side 2 is provided with two location semicircle orifices 5 kept at a certain distance away.
The using method of this positioning rule is: the location semicircle orifice 5 of the second right-angle side is arranged on the position needing location, then horizontal bubbler tube 8 and vertical bubbler tube 7 is adjusted, make the bubble in horizontal bubbler tube 8 placed in the middle, make the liquid level of vertical bubbler tube 7, then through fixing circular hole 9, positioning rule is fixed on the table by fixture, can location be completed.In this position fixing process of demonstration, use this ruler that student can be made to get information about very much method and the principle of sizing.
It will be recognized by those skilled in the art, under the prerequisite not departing from protection scope of the present invention, various amendment, change and combination can be carried out to above-mentioned embodiment, and think that this amendment, change and combination are within the scope of originality thought.
Claims (1)
1. a teaching positioning rule, comprise the first right-angle side, the second right-angle side and hypotenuse, it is characterized in that: described first right-angle side, the second right-angle side and hypotenuse composition triangle, leg-of-mutton centre is provided with leg-of-mutton hollow-out parts, first right-angle side and the second right-angle side are provided with master scale, the lower end of the scale on the first right-angle side is provided with two fixing circular holes, and the first right-angle side between two fixing circular holes is provided with horizontal bubbler tube in the plane;
Second right-angle side is provided with vertical protruding plate in the plane, protruding plate is provided with curve hollow-out parts, and the sidepiece of curve hollow-out parts is provided with vertical bubbler tube; The edge of the second right-angle side is provided with two location semicircle orifices kept at a certain distance away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504938.7U CN204749648U (en) | 2015-07-14 | 2015-07-14 | Teaching is with location chi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504938.7U CN204749648U (en) | 2015-07-14 | 2015-07-14 | Teaching is with location chi |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204749648U true CN204749648U (en) | 2015-11-11 |
Family
ID=54464397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520504938.7U Expired - Fee Related CN204749648U (en) | 2015-07-14 | 2015-07-14 | Teaching is with location chi |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204749648U (en) |
-
2015
- 2015-07-14 CN CN201520504938.7U patent/CN204749648U/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: 20151111 Termination date: 20190714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |