CN207173126U - A kind of mathematical statistics drawing ruler - Google Patents
A kind of mathematical statistics drawing ruler Download PDFInfo
- Publication number
- CN207173126U CN207173126U CN201721862153.2U CN201721862153U CN207173126U CN 207173126 U CN207173126 U CN 207173126U CN 201721862153 U CN201721862153 U CN 201721862153U CN 207173126 U CN207173126 U CN 207173126U
- Authority
- CN
- China
- Prior art keywords
- plate
- crossfoot
- linear foot
- positioning rule
- foot plate
- 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 discloses a kind of mathematical statistics drawing ruler,Belong to surveying and mapping tool technical field,Drawing ruler includes chi plate,Described chi plate includes linear foot plate,Crossfoot plate and positioning rule plate,The upper and lower ends of linear foot plate are both provided with the center line symmetrical setting of crossfoot plate and two crossfoot plates along linear foot plate length direction,Linear foot plate is located at the left end of crossfoot plate,Positioning rule plate be arranged in parallel with linear foot plate,The upper and lower ends of positioning rule plate are both provided with coattail strip,There is the dovetail groove set in left-right direction the side of crossfoot plate towards positioning rule plate,Positioning rule plate is by cooperation and the crossfoot plate shape of coattail strip and dovetail groove into being slidably matched,Linear foot plate,The back side for the frame-type structure that crossfoot plate and positioning rule plate are surrounded is plane,Upper surface of the zero graduation line of linear foot plate and positioning rule plate all with underlying crossfoot plate flushes,Right flank of the zero graduation line of two crossfoot plates all with linear foot plate flushes.It is simple in construction, it is easy to operate, it is time saving and energy saving, substantially increase drawing efficrence.
Description
Technical field
The utility model belongs to surveying and mapping tool technical field, is related to a kind of mathematical statistics drawing ruler.
Background technology
Statistical chart is that relatively intuitively data representation method, statistical chart generally comprise curve map, trend graph, bar chart to one kind
Process Deng, statistical cartography generally requires and first marks each data point in a coordinate system, then to figure based on each data point
Table carries out micronization processes, it is seen that it is in statistical cartography and its important link accurately to mark data point.Existing mapping
Chi is typically all long bar rule, it is desirable to determines a data point, it is necessary to first find out corresponding point in x-axis using long bar rule, then
A line parallel to y-axis is drawn along the point, then finds out corresponding point on the y axis, draws a line parallel to x-axis, two
The intersection point of bar line is exactly the data point to be looked for, and this mode wastes time and energy, less efficient.
The content of the invention
The defects of the utility model is in order to overcome prior art, devise a kind of mathematical statistics drawing ruler, structure letter
It is single, it is easy to operate, it is time saving and energy saving, substantially increase drawing efficrence.
The concrete technical scheme that the utility model is taken is：A kind of mathematical statistics drawing ruler, including with scale
The chi plate of line, it is important to：Described chi plate includes linear foot plate, crossfoot plate and positioning rule plate, and the upper and lower ends of linear foot plate are all set
There is the center line symmetrical setting of crossfoot plate and two crossfoot plates along linear foot plate length direction, linear foot plate is located at the left end of crossfoot plate,
Positioning rule plate be arranged in parallel with linear foot plate, and the upper and lower ends of positioning rule plate are both provided with coattail strip, and crossfoot plate is towards positioning rule plate
Side have a dovetail groove set in left-right direction, positioning rule plate by coattail strip and dovetail groove cooperation and crossfoot plate shape into
It is slidably matched, the back side for the frame-type structure that linear foot plate, crossfoot plate and positioning rule plate are surrounded is plane, linear foot plate and positioning rule plate
Upper surface of the zero graduation line all with underlying crossfoot plate flush, the right side of the zero graduation lines of two crossfoot plates all with linear foot plate
Side flushes.
The upper and lower ends of the linear foot plate are both provided with chamfering and the right flank length of linear foot plate is less than left surface length, horizontal
The left end of chi plate is also equipped with chamfering, and the upper and lower ends of linear foot plate all offer vertical slot, and the left end of crossfoot plate all offers translot,
Dovetail groove sets up the connecting plate of L-shaped, one end of connecting plate between translot and positioning rule plate between linear foot plate and crossfoot plate
With vertical slot plugged and fixed, the other end and translot plugged and fixed.
The angle of chamfering is all 45 ° on described linear foot plate and crossfoot plate.
The width of described crossfoot plate, linear foot plate and positioning rule plate is equal, and thickness is also equal, and the width a of crossfoot plate is
2.5-3.5cm, thickness b are 3-4cm, and the plate body thickness c of connecting plate is 0.5-0.9cm, and the depth of dovetail groove is 0.8-1cm.
Described crossfoot plate right-hand member has the screw opened up along the vertical direction, and bolt is provided with screw, and the screw rod of bolt is worn
Cross crossfoot plate to extend in dovetail groove, part of the bolt protrusion in dovetail groove is formed as the position limiting structure of positioning rule plate, crossfoot
Deep gouge is provided with plate, the nut of bolt is located in deep gouge.
The beneficial effects of the utility model are：When wanting to determine a data point, first running fix chi plate, make positioning rule plate
Left surface numerical value corresponding with crossfoot plate align, determine x-axis coordinate, then directly looked for according to the scale value on positioning rule plate
To y-axis coordinate, now the location of y-axis coordinate is exactly the data point to be looked for, and this drawing ruler is simple in construction, easy to operate
Fast, it is time saving and energy saving, substantially increase drawing efficrence.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 right view.
In accompanying drawing, 1 represents linear foot plate, and 2 represent crossfoot plate, and 3 represent positioning rule plate, and 4 represent coattail strip, and 5 represent connecting plate,
6 represent bolt.
Embodiment
The utility model is elaborated with specific embodiment below in conjunction with the accompanying drawings：
Specific embodiment, as depicted in figs. 1 and 2, a kind of mathematical statistics drawing ruler, including the chi with graduation mark
Plate, described chi plate include linear foot plate 1, crossfoot plate 2 and positioning rule plate 3, and the upper and lower ends of linear foot plate 1 are both provided with crossfoot plate 2
And center line symmetrical setting of two crossfoot plates 2 along the length direction of linear foot plate 1, linear foot plate 1 are located at the left end of crossfoot plate 2, positioning
Chi plate 3 be arranged in parallel with linear foot plate 1, and the upper and lower ends of positioning rule plate 3 are both provided with coattail strip 4, and crossfoot plate 2 is towards positioning rule plate
There are the dovetail groove set in left-right direction, cooperation and crossfoot plate 2 of the positioning rule plate 3 by coattail strip 4 and dovetail groove in 3 side
Formation is slidably matched, and the back side of the frame-type structure that linear foot plate 1, crossfoot plate 2 and positioning rule plate 3 are surrounded is plane, the He of linear foot plate 1
Upper surface of the zero graduation line of positioning rule plate 3 all with underlying crossfoot plate 2 flushes, and the zero graduation line of two crossfoot plates 2 is all
Flushed with the right flank of linear foot plate 1.
When wanting to determine a data point, such as A=(X1, Y1), first running fix chi plate 3, make the left surface of positioning rule plate 3
Numerical value corresponding with crossfoot plate 2 is that X1 aligns, and determines x-axis coordinate, is then directly found according to the scale value on positioning rule plate 3
Y-axis coordinate is Y1, and now the location of Y1 is exactly the data point A to be looked for, and this drawing ruler is simple in construction, easy to operate fast
Victory, it is time saving and energy saving, substantially increase drawing efficrence.Set two crossfoot plates 2 that the data point that finds can be made more accurate, make
Figure it is also just more accurate.In order that overall more neat appearance, linear foot plate 1, crossfoot plate 2 and the positioning rule plate 3 of drawing ruler is enclosed
Into the front end face of frame-type structure be also a plane.
Chamfering and linear foot plate 1 are both provided with as the upper and lower ends to further improvement of the utility model, linear foot plate 1
Right flank length is less than left surface length, and the left end of crossfoot plate 2 is also equipped with chamfering, and the upper and lower ends of linear foot plate 1 all offer
Vertical slot, the left end of crossfoot plate 2 all offer translot, and dovetail groove is between translot and positioning rule plate 3, in linear foot plate 1 and crossfoot
The connecting plate 5 of L-shaped, one end and vertical slot plugged and fixed, the other end and the translot plugged and fixed of connecting plate 5 are set up between plate 2.So
So that between linear foot plate 1 and crossfoot plate 2, between crossfoot plate 2 and positioning rule plate 3 be all detachable connection, not used time, can will
They, which take apart, is stacked together, and can reduce the space of occupancy, is easy to deposit, in use, first with connecting plate 5 by two crossfoots
Plate 2 inserts with linear foot plate 1 fix respectively, is then again connected positioning rule plate 3 with two crossfoot plates 2, simple in construction, dismounting
It is convenient and swift, it is time saving and energy saving.The angle of chamfering is all preferably 45 ° on linear foot plate 1 and crossfoot plate 2, symmetrical structure so that overall
More neat appearance.
As to further improvement of the utility model, in order that drawing ruler with sufficiently high intensity, dovetail groove with
Sufficiently large depth, connecting plate 5 have sufficiently large thickness, and crossfoot plate 2, linear foot plate 1 are equal with the width of positioning rule plate 3, thick
Degree is also equal, and the width a of crossfoot plate 2 is 2.5-3.5cm, thickness b is 3-4cm, and the plate body thickness c of connecting plate 5 is 0.5-
0.9cm, the depth of dovetail groove is 0.8-1cm, when the width a of crossfoot plate 2 is 3cm, thickness b is 3.5cm, the plate of connecting plate 5
Body thickness c is 0.7cm, and the depth of dovetail groove is 0.9cm.
As to further improvement of the utility model, the right-hand member of crossfoot plate 2 has a screw opened up along the vertical direction, in screw
Bolt 6 is provided with, the screw rod of bolt 6 is extended in dovetail groove through crossfoot plate 2, and bolt 6 protrudes the part shape in dovetail groove
As the position limiting structure of positioning rule plate 3, deep gouge is provided with crossfoot plate 2, the nut of bolt 6 is located in deep gouge.Can using bolt 6
To prevent mapping personnel from positioning rule plate 3 is departed from into crossfoot plate 2 in running fix chi plate 3, the time installed repeatedly can be saved.
The screw rod of bolt 6 is located in dovetail groove without protruding into outside dovetail groove, on the premise of ensuring that position-limiting action can be played,
It can avoid meeting people or other articles, especially during mapping, prevent plowing from the arm of mapping personnel, more safety can
Lean on.
Claims (5)
1. a kind of mathematical statistics drawing ruler, including the chi plate with graduation mark, it is characterised in that：Described chi plate includes vertical
Chi plate (1), crossfoot plate (2) and positioning rule plate (3), the upper and lower ends of linear foot plate (1) are both provided with crossfoot plate (2) and two crossfoots
Center line symmetrical setting of the plate (2) along linear foot plate (1) length direction, linear foot plate (1) are located at the left end of crossfoot plate (2), positioning rule
Plate (3) be arranged in parallel with linear foot plate (1), and the upper and lower ends of positioning rule plate (3) are both provided with coattail strip (4), crossfoot plate (2) direction
There is the dovetail groove set in left-right direction the side of positioning rule plate (3), and positioning rule plate (3) is by coattail strip (4) and dovetail groove
Cooperation and crossfoot plate (2) formed and be slidably matched, the frame-type knot that linear foot plate (1), crossfoot plate (2) and positioning rule plate (3) are surrounded
The back side of structure is plane, the upper end of the zero graduation line of linear foot plate (1) and positioning rule plate (3) all with underlying crossfoot plate (2)
Face flushes, and the right flank of the zero graduation lines of two crossfoot plates (2) all with linear foot plate (1) flushes.
A kind of 2. mathematical statistics drawing ruler according to claim 1, it is characterised in that：The linear foot plate (1) it is upper
Lower both ends are both provided with chamfering and the right flank length of linear foot plate (1) is less than left surface length, and the left end of crossfoot plate (2) is also provided with
There is chamfering, the upper and lower ends of linear foot plate (1) all offer vertical slot, and the left end of crossfoot plate (2) all offers translot, and dovetail groove is located at
Between translot and positioning rule plate (3), the connecting plate (5) of L-shaped, connecting plate (5) are set up between linear foot plate (1) and crossfoot plate (2)
One end and vertical slot plugged and fixed, the other end and translot plugged and fixed.
A kind of 3. mathematical statistics drawing ruler according to claim 2, it is characterised in that：Described linear foot plate (1) and
The angle of chamfering is all 45 ° on crossfoot plate (2).
A kind of 4. mathematical statistics drawing ruler according to claim 2, it is characterised in that：It is described crossfoot plate (2), vertical
The width of chi plate (1) and positioning rule plate (3) is equal, and thickness is also equal, and the width a of crossfoot plate (2) is 2.5-3.5cm, thickness b is
3-4cm, the plate body thickness c of connecting plate (5) is 0.5-0.9cm, and the depth of dovetail groove is 0.8-1cm.
A kind of 5. mathematical statistics drawing ruler according to claim 1, it is characterised in that：Described crossfoot plate (2) is right
There is the screw opened up along the vertical direction at end, is provided with bolt (6) in screw, the screw rod of bolt (6) extends to through crossfoot plate (2)
In dovetail groove, part of bolt (6) protrusion in dovetail groove is formed as the position limiting structure of positioning rule plate (3), and crossfoot plate is set on (2)
Deep gouge is equipped with, the nut of bolt (6) is located in deep gouge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862153.2U CN207173126U (en) | 2017-12-27 | 2017-12-27 | A kind of mathematical statistics drawing ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862153.2U CN207173126U (en) | 2017-12-27 | 2017-12-27 | A kind of mathematical statistics drawing ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207173126U true CN207173126U (en) | 2018-04-03 |
Family
ID=61745813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721862153.2U Expired - Fee Related CN207173126U (en) | 2017-12-27 | 2017-12-27 | A kind of mathematical statistics drawing ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207173126U (en) |
-
2017
- 2017-12-27 CN CN201721862153.2U patent/CN207173126U/en not_active Expired - Fee Related
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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: 20180403 Termination date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |