CN203937398U - A kind of decile engineer's scale - Google Patents
A kind of decile engineer's scale Download PDFInfo
- Publication number
- CN203937398U CN203937398U CN201420257303.7U CN201420257303U CN203937398U CN 203937398 U CN203937398 U CN 203937398U CN 201420257303 U CN201420257303 U CN 201420257303U CN 203937398 U CN203937398 U CN 203937398U
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- CN
- China
- Prior art keywords
- scale
- straight
- bar
- rod
- tape measure
- 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
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Tape Measures (AREA)
Abstract
本实用新型涉及一种等分比例尺，包括刻度尺(10)、伸缩杆(20)及直杆(30)，刻度尺(10)右端活动连接着伸缩杆(20)的底端，伸缩杆(20)内插有一根附属杆(202)，附属杆(202)顶部活动连接着直杆(30)，刻度尺(10)的左端部固定有一个卷尺(103)。本实用新型结构简单，使用方便，将卷尺拉出既定距离，需要几等分就转动直杆，使直杆末端落在刻度尺的数字几处，使卷尺距离的末端落在直杆上，然后用附属杆推动直杆，对准刻度尺上的数字进行等分，根据相似三角形的原理，就可以对卷尺拉出的距离进行等分。
The utility model relates to an equal scale, comprising a scale (10), a telescopic rod (20) and a straight rod (30), the right end of the scale (10) is movably connected to the bottom end of the telescopic rod (20), and the telescopic rod ( 20) an accessory bar (202) is inserted in, and the top of the accessory bar (202) is movably connected with the straight bar (30), and a tape measure (103) is fixed on the left end of the scale (10). The utility model has the advantages of simple structure and convenient use. Pull the measuring tape out to a predetermined distance, turn the straight rod when it needs equal divisions, make the end of the straight rod fall on the number of the scale, make the end of the tape measure distance fall on the straight rod, and then Use the attached rod to push the straight rod, align the numbers on the scale to divide equally, and according to the principle of similar triangles, the distance that the tape measure can be pulled out can be equally divided.
Description
Technical field:
The utility model relates to a kind of teaching aid, more specifically to a kind of decile engineer's scale.
Background technology:
Decile, exactly certain distance is separated into some parts, distance between every part equates, in the field research of mathematics, the principle of decile does not have concrete demonstrator to demonstrate, and depends teacher's speech and the stroke on blackboard alone, is to be difficult to make student really to realize the meaning of decile, if design a kind of device that can demonstrate decile, just can address this problem, be very useful so design a kind of decile engineer's scale.
Utility model content:
The purpose of this utility model is exactly for the deficiencies in the prior art, and a kind of decile engineer's scale is provided.The utlity model has simple in structure, easy to use, tape measure is pulled out to both set a distances, need several deciles just to rotate straight-bar, make straight-bar end drop on several places of numeral of rule, the end of tape measure distance is dropped on straight-bar, then with accessory rail, promote straight-bar, the numeral of aiming on rule is carried out decile, and according to the principle of similar triangles, the distance that just can pull out tape measure is carried out the advantage of decile.
Technology solution of the present utility model is as follows:
A decile engineer's scale, comprises rule, expansion link and straight-bar, and described rule right-hand member is being flexibly connected the bottom of expansion link, is inserted with an accessory rail in expansion link, and accessory rail top movable is connecting straight-bar, and the left part of rule is fixed with a tape measure.
In technique scheme, on described rule, be carved with scale.
In technique scheme, between the bottom of described rule right-hand member and expansion link, by movable rotation-shaft a, be connected.
In technique scheme, be rotary with a trip bolt on described expansion link, trip bolt withstands on accessory rail.
In technique scheme, between described accessory rail top and straight-bar, by movable rotation-shaft b, be connected.
The beneficial effects of the utility model are:
The utility model is simple in structure, easy to use, tape measure is pulled out to both set a distances, need several deciles just to rotate straight-bar, make straight-bar end drop on several places of numeral of rule, the end of tape measure distance is dropped on straight-bar, then with accessory rail, promote straight-bar, the numeral of aiming on rule is carried out decile, and according to the principle of similar triangles, the distance that just can pull out tape measure is carried out decile.
Accompanying drawing explanation:
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of the timesharing such as the utility model.
In figure: 10, rule; 101, scale; 102, movable rotation-shaft a; 103, tape measure; 20, expansion link; 201, trip bolt; 202, accessory rail; 203, movable rotation-shaft b; 30, straight-bar.
The specific embodiment:
The following stated is only preferred embodiment of the present utility model, not scope of the present utility model is limited.
Embodiment: see shown in Fig. 1 and Fig. 2, a kind of decile engineer's scale, comprise rule 10, expansion link 20 and straight-bar 30, described rule 10 right-hand members are being flexibly connected the bottom of expansion link 20, in expansion link 20, be inserted with an accessory rail 202, accessory rail 202 top movable are connecting straight-bar 30, and the left part of rule 10 is fixed with a tape measure 103.
On described rule 10, be carved with scale 101.
Between the bottom of described rule 10 right-hand members and expansion link 20, by movable rotation-shaft a102, be connected.
On described expansion link 20, be rotary with a trip bolt 201, trip bolt 201 withstands on accessory rail 202.
Between described accessory rail 202 tops and straight-bar 30, by movable rotation-shaft b203, be connected.
Operation principle:
A kind of decile engineer's scale, rule 10 right-hand members are being flexibly connected the bottom of expansion link 20, in expansion link 20, be inserted with an accessory rail 202, accessory rail 202 top movable are connecting straight-bar 30, the left part of rule 10 is fixed with a tape measure 103, on rule 10, be carved with scale 101, between the bottom of rule 10 right-hand members and expansion link 20, by movable rotation-shaft a102, be connected, on expansion link 20, be rotary with a trip bolt 201, trip bolt 201 withstands on accessory rail 202, between accessory rail 202 tops and straight-bar 30, by movable rotation-shaft b203, be connected, tape measure 103 is pulled out to both set a distances, need several deciles just to rotate straight-bar 30, make straight-bar 30 ends drop on several places of numeral of rule 10, the end of tape measure 103 distances is dropped on straight-bar 30, then with accessory rail 202, promote straight-bar 30, the numeral of aiming on rule 10 is carried out decile, according to the principle of similar triangles, the distance that just can pull out tape measure 103 is carried out decile.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257303.7U CN203937398U (en) | 2014-05-20 | 2014-05-20 | A kind of decile engineer's scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257303.7U CN203937398U (en) | 2014-05-20 | 2014-05-20 | A kind of decile engineer's scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203937398U true CN203937398U (en) | 2014-11-12 |
Family
ID=51856742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420257303.7U Expired - Fee Related CN203937398U (en) | 2014-05-20 | 2014-05-20 | A kind of decile engineer's scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203937398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218279A (en) * | 2016-07-21 | 2016-12-14 | 安徽省宿州市第二中学 | A kind of teaching aid of setting-out section perpendicular bisector |
-
2014
- 2014-05-20 CN CN201420257303.7U patent/CN203937398U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218279A (en) * | 2016-07-21 | 2016-12-14 | 安徽省宿州市第二中学 | A kind of teaching aid of setting-out section perpendicular bisector |
| CN106218279B (en) * | 2016-07-21 | 2018-06-19 | 安徽省宿州市第二中学 | A kind of teaching aid of setting-out section perpendicular bisector |
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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: 20141112 Termination date: 20150520 |
|
| EXPY | Termination of patent right or utility model |