CN213956409U - Topographic map pointing device based on azimuth correction - Google Patents
Topographic map pointing device based on azimuth correction Download PDFInfo
- Publication number
- CN213956409U CN213956409U CN202120335825.4U CN202120335825U CN213956409U CN 213956409 U CN213956409 U CN 213956409U CN 202120335825 U CN202120335825 U CN 202120335825U CN 213956409 U CN213956409 U CN 213956409U
- Authority
- CN
- China
- Prior art keywords
- transparent
- scale
- line
- ruler
- dial
- 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
- 238000012937 correction Methods 0.000 title claims abstract description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000005389 magnetism Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 3
- 241000669003 Aspidiotus destructor Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a topographic map pointing device based on azimuth correction, which comprises a transparent bedplate for determining the placing direction, a transparent dial for measuring the angle, a transparent ruler for determining the distance on the map and a central shaft for determining the placing position, wherein the central shaft is connected with the transparent ruler, the transparent dial and the transparent bedplate from top to bottom in sequence; and when the transparent dial is matched with the transparent ruler for use, a magnetic seat deflection angle is determined, and when the transparent dial is matched with the transparent ruler for use, a magnetic azimuth angle of a connecting line between the point to be measured and the station to be measured is determined. The utility model discloses simple structure, the overall arrangement is compact, only needs to confirm magnetism azimuth and distance on the pointing device and can confirm the position of awaiting measuring point, has saved the process that carries out the angle conversion according to the relation of three north directions, labour saving and time saving, and is swift high-efficient.
Description
Technical Field
The utility model relates to a forest is measured and resource monitoring field especially relates to a topographic map point ware based on azimuth is revised.
Background
In forest measurement, a compass is often used for measuring a magnetic azimuth angle, the distance between a measuring point and a point to be measured is obtained through tape measure or optical ranging, and then the position of the point to be measured relative to the measuring point is determined through the magnetic azimuth angle and the distance. If the coordinates of the measuring station are known, the position of the measuring station can be determined on a topographic map or a forest resource distribution map, and the position of the measuring point on the map is determined according to the magnetic azimuth angle and the distance of a connecting line between the measuring station and the measuring point to be measured.
On a topographic map or a resource distribution map, meridian lines are drawn through east and west inner maps, namely true north direction lines, and a kilometer net longitudinal line on the map is a coordinate north direction line, so that the magnetic north direction line passing through a station to be measured cannot be directly determined generally, and a magnetic azimuth angle cannot be directly found on the map, so that the magnetic azimuth angle needs to be converted into a coordinate azimuth angle according to the magnetic seating declination angle, and then the position of a point to be measured is determined through the coordinate azimuth angle and the distance. The whole calculation process is time-consuming and labor-consuming, errors are easy to occur, and the fixed point efficiency is directly influenced. Especially, when the number of points to be measured is large or frequent measurement is required due to monitoring, the method is more complicated and inefficient. Therefore, how to design a time-saving, labor-saving, fast and efficient topographic map pointing device becomes a difficult problem to be solved urgently by the people in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a topographic map point ware based on azimuth is revised solves prior art and needs to carry out the angle according to the relation of three north directions and frequently converts, wastes time and energy, and slow inefficiency makes mistakes easily problem.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a topographic map pointing device based on azimuth correction, including the transparent platen that is used for confirming the direction of placing, the transparent circle that the angle measurement used, the transparent ruler that is used for confirming the distance on the picture and the center pin that is used for confirming the position of placing, the center pin from last to connecting gradually transparent ruler, transparent circle and the transparent platen; and when the transparent dial is matched with the transparent ruler for use, a magnetic seat deflection angle is determined, and when the transparent dial is matched with the transparent ruler for use, a magnetic azimuth angle of a connecting line between the point to be measured and the station to be measured is determined.
Further, the transparent bedplate is a rectangular high-transparency acrylic plate, the transparent dial is a circular high-transparency acrylic plate, the diameter of the transparent dial is larger than the side length of the transparent bedplate, the transparent ruler is an L-shaped high-transparency acrylic plate, and the central shaft is a stainless steel shaft.
Further, an arc scale, a mesh point longitudinal line, a transparent platen center hole and a central longitudinal line are arranged on the transparent platen, the arc scale is provided with angle scale lines, the angle scale lines are concentric with the transparent platen center hole, the mesh point longitudinal line is parallel to a kilometer net longitudinal line of a topographic map, the transparent platen center hole is connected with the center shaft, and the mesh point longitudinal lines on two sides of the central longitudinal line are a wide-distance mesh point longitudinal line and a narrow-distance mesh point longitudinal line respectively.
Furthermore, the transparent bedplate is 200mm long, 200mm wide and 7mm thick, the dot vertical lines are composed of vertically arranged black points, the distance between wide dot vertical lines is 20mm, the distance between narrow dot vertical lines is 5mm, the angle scale lines are divided at intervals of 1 degree and are respectively 20 degrees from the central vertical line to the left and right, and the radius of the central hole of the transparent bedplate is 6 mm.
Furthermore, the transparent dial is provided with a north-pointing line, a full-circle scale line and a transparent dial center hole, the angle scale line of the full-circle scale line is increased clockwise, the north-pointing line points to the 0-degree scale line direction of the full-circle scale line from the center of the transparent dial center hole, the full-circle scale line is concentric with the transparent dial center hole, and the transparent dial center hole is connected with the center shaft.
Further, the radius of the transparent dial is 105mm, the length of the north arrow is 95mm, the radius of the full circle scale line is 80mm, and the radius of the center hole of the transparent dial is 6 mm.
Furthermore, be provided with transparent chi center hole on the vertical plate of transparent ruler, the diaphragm of transparent ruler is the scale, the scale is provided with the millimeter groove, the extension line that the scale was carved with millimeter groove one side passes the hole center in transparent chi center hole, transparent chi center hole is connected the center pin.
Further, the transverse plate L of the transparent ruler1×H1400mm multiplied by 20mm, the longitudinal plate L of the transparent ruler2×H2The diameter of the central hole of the transparent ruler is 40mm multiplied by 20mm, the 0 scale of the millimeter scale line is arranged at the hole center of the central hole of the transparent ruler, the millimeter scale line stops from 1cm to 40cm, and the radius of the central hole of the transparent ruler is 6 mm.
Further, the upper portion of center pin is cylindrical, the lower part is conical structure, and the overall height is 20mm, the cylindrical part radius of center pin is 6 mm.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses topographic map pointing device based on azimuth correction, including transparent platen, transparent circle, transparent ruler and central axle, through knowing at survey website to the magnetism azimuth and the distance of waiting to measure the dot line, confirm magnetism azimuth and distance and can confirm the position of awaiting measuring dot on the pointing device. The utility model discloses simple structure, the overall arrangement is compact, only needs to confirm magnetism azimuth and distance on the pointing device and can confirm the position of awaiting measuring point, has saved the process that carries out the angle conversion according to the relation of three north directions, and labour saving and time saving needs frequent conversion to the more time of awaiting measuring point, is difficult for makeing mistakes, only needs once to confirm the relative position of transparent platen and transparent circle, can use always afterwards, and is swift high-efficient.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a front view of the topographic map pointing device based on azimuth correction of the present invention;
FIG. 2 is a front view of the transparent platen of the present invention;
FIG. 3 is a front view of the transparent dial of the present invention;
FIG. 4 is a front view of the transparent ruler of the present invention;
FIG. 5 is an enlarged schematic view of the central shaft of the present invention;
description of reference numerals: 1. a transparent platen; 101. an arc scale; 102. vertical lines of the net points; 103. a central hole of the transparent platen; 104. a central longitudinal line; 2. a transparent dial; 201. a north line is pointed; 202. full circle scale lines; 203. a central hole of the transparent dial; 3. a transparent ruler; 301. a central hole of the transparent ruler; 302. a graduated scale; 4. a central axis.
Detailed Description
As shown in fig. 1, a topographic map pointing device based on azimuth correction comprises a transparent platen 1 for determining a placing direction, a transparent scale 2 for measuring an angle, a transparent ruler 3 for determining a distance on the map, and a central shaft 4 for determining a placing position, wherein the central shaft 4 is connected with the transparent ruler 3, the transparent scale 2 and the transparent platen 1 in sequence from top to bottom; the magnetic seat deflection angle is determined when the transparent dial 2 is matched with the transparent bedplate 1 for use, and the magnetic azimuth angle of a connecting line between a point to be measured and a measuring station is determined when the transparent dial 2 is matched with the transparent ruler 3 for use.
The transparent bedplate 1 is a rectangular high-transparency acrylic plate, the transparent disc 2 is a round high-transparency acrylic plate, the diameter of the transparent disc 2 is larger than the side length of the transparent bedplate 1, the transparent ruler 3 is an L-shaped high-transparency acrylic plate, and the central shaft 4 is a stainless steel shaft.
As shown in fig. 2, an arc scale 101, a dot vertical line 102, a transparent platen center hole 103 and a central vertical line 104 are arranged on the transparent platen 1, the arc scale 101 is provided with an angle scale line, the angle scale line is concentric with the transparent platen center hole 103, the dot vertical line 102 is parallel to a kilometer screen vertical line of a topographic map, the transparent platen center hole 103 is connected with the center shaft 4, and the separated dot vertical lines 102 on both sides of the central vertical line 104 are a wide-distance dot vertical line and a narrow-distance dot vertical line, respectively.
The transparent bedplate 1 is 200mm long, 200mm wide and 7mm thick, the dot vertical lines 102 are composed of vertically arranged black dots, the distance between wide dot vertical lines is 20mm, the distance between narrow dot vertical lines is 5mm, the angle scale lines are divided at intervals of 1 degree and are respectively 20 degrees from the central vertical line 104 to the left and right, and the radius of the central hole 103 of the transparent bedplate is 6 mm.
As shown in fig. 3, the transparent dial 2 is provided with a north-pointing line 201, a full-circle scale mark 202 and a transparent dial center hole 203, the angle scale mark of the full-circle scale mark 202 increases clockwise, the north-pointing line 201 points from the center of the transparent dial center hole 203 to the 0-degree scale mark direction of the full-circle scale mark 202, the full-circle scale mark 202 is concentric with the transparent dial center hole 203, and the transparent dial center hole 203 is connected with the central shaft 4.
The radius of the transparent dial 2 is 105mm, the length of the north-pointing line 201 is 95mm, the radius of the full-circle scale line 202 is 80mm, and the radius of the central hole 203 of the transparent dial is 6 mm.
As shown in fig. 4, a transparent ruler center hole 301 is formed in a vertical plate of the transparent ruler 3, a horizontal plate of the transparent ruler 3 is a graduated scale 302, the graduated scale 302 is provided with millimeter scale lines, an extension line on one side of the millimeter scale lines carved on the graduated scale 302 passes through a hole center of the transparent ruler center hole 301, and the transparent ruler center hole 301 is connected with the center shaft 4.
Transverse plate L of transparent ruler 31×H1400mm x 20mm, a transparent straightedge 32×H240mm x 20mm, the 0 scale of the millimeter scale line is at the center of the transparent ruler center hole 301, the millimeter scale line starts at 1cm and stops at 40cm, and the radius of the transparent ruler center hole 301 is 6 mm.
As shown in FIG. 5, the upper part of the central shaft 4 is cylindrical, the lower part is conical, the total height is 20mm, and the radius of the cylindrical part of the central shaft 4 is 6 mm.
The action process of the utility model is as follows:
firstly, a topographic map is laid on a desktop, a pointer is placed on the topographic map, the center shaft 4 tip of the pointer is aligned with the position of a station measuring point, the left wide-spacing mesh point longitudinal line 102 on the left side of a central longitudinal line 104 is roughly parallel to a kilometer mesh longitudinal line of the topographic map, the right narrow-spacing mesh point longitudinal line 102 is strictly parallel to the kilometer mesh longitudinal line, and the bedplate is kept stable and does not move through the weight of the pointer, particularly the transparent bedplate 1. The central longitudinal line 104 of the transparent platen 1 now points in the north direction of the coordinates.
The transparent platen 1 and the central shaft 4 are kept stationary, the transparent dial 2 is rotated through the edge part of the transparent dial 2 exceeding the transparent platen 1, the angle of the north arrow 201 pointing to the arc-shaped scale 101 is a local magnetic seat offset angle, and at the moment, the north arrow 201 on the transparent dial 2 points to the magnetic north direction.
According to the measured magnetic azimuth angle and distance of the connecting line of the measuring station and the point to be measured, the magnetic azimuth angle is found on the full circle scale mark 202 of the transparent circle 2 through the upper side line of the scale 302, namely, the direction is determined, the scale position on the scale 302 is determined through the distance and the scale, and the position of the point to be measured on the graph can be determined through the direction and the scale position.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. A topographic map pointing device based on azimuthal correction, comprising: the device comprises a transparent bedplate (1) for determining the placing direction, a transparent dial (2) for measuring the angle, a transparent ruler (3) for determining the distance on the drawing and a central shaft (4) for determining the placing position, wherein the central shaft (4) is sequentially connected with the transparent ruler (3), the transparent dial (2) and the transparent bedplate (1) from top to bottom; the magnetic seat deflection angle is determined when the transparent dial (2) is matched with the transparent bedplate (1) for use, and the magnetic azimuth angle of a connecting line between a point to be measured and a measuring station is determined when the transparent dial (2) is matched with the transparent ruler (3) for use.
2. The azimuth correction based topographical pointing device of claim 1, wherein: the transparent bedplate (1) is a rectangular high-transparency acrylic plate, the transparent dial (2) is a round high-transparency acrylic plate, the diameter of the transparent dial (2) is larger than the side length of the transparent bedplate (1), the transparent ruler (3) is an L-shaped high-transparency acrylic plate, and the central shaft (4) is a stainless steel shaft.
3. The azimuth correction based topographical pointing device of claim 2, wherein: the transparent bedplate (1) is provided with an arc scale (101), mesh point longitudinal lines (102), a transparent bedplate center hole (103) and a central longitudinal line (104), the arc scale (101) is provided with angle scale lines, the angle scale lines are concentric with the transparent bedplate center hole (103), the mesh point longitudinal lines (102) are parallel to the kilometer net longitudinal lines of a topographic map, the transparent bedplate center hole (103) is connected with the central shaft (4), and the separated mesh point longitudinal lines (102) on two sides of the central longitudinal line (104) are wide-distance mesh point longitudinal lines and narrow-distance mesh point longitudinal lines respectively.
4. The azimuth correction based topographical pointing device of claim 3, wherein: the transparent bedplate (1) is 200mm long, 200mm wide and 7mm thick, the mesh point vertical lines (102) are composed of vertically arranged black points, the distance between wide mesh point vertical lines is 20mm, the distance between narrow mesh point vertical lines is 5mm, the angle scale lines are divided at intervals of 1 degree and are respectively 20 degrees from the central vertical line (104) to the left and the right, and the radius of the transparent bedplate central hole (103) is 6 mm.
5. The azimuth correction based topographical pointing device of claim 2, wherein: the transparent dial (2) is provided with a north-pointing line (201), a full-circle scale line (202) and a transparent dial center hole (203), the angle scale line of the full-circle scale line (202) is increased clockwise, the north-pointing line (201) points to the 0-degree scale line direction of the full-circle scale line (202) from the center of the transparent dial center hole (203), the full-circle scale line (202) is concentric with the transparent dial center hole (203), and the transparent dial center hole (203) is connected with the central shaft (4).
6. The azimuth correction based topographical pointing device of claim 5, wherein: the radius of the transparent dial (2) is 105mm, the length of the north-pointing line (201) is 95mm, the radius of the full-circle scale line (202) is 80mm, and the radius of the central hole (203) of the transparent dial is 6 mm.
7. The azimuth correction based topographical pointing device of claim 2, wherein: be provided with transparent chi center hole (301) on the vertical plate of transparent ruler (3), the diaphragm of transparent ruler (3) is scale (302), scale (302) are provided with the millimeter scale, the extension line that scale (302) were carved with millimeter scale one side is crossed the hole center of transparent ruler center hole (301), transparent ruler center hole (301) are connected center pin (4).
8. The azimuth correction based topographical pointing device of claim 7, wherein: transverse plate L of transparent ruler (3)1×H1400mm multiplied by 20mm, the longitudinal plate L of the transparent ruler (3)2×H2Is 40mm multiplied by 20mm, the 0 scale of the millimeter scale line is arranged at the hole center of the central hole (301) of the transparent ruler, the millimeter scale line starts from 1cm to stop at 40cm, and the radius of the central hole (301) of the transparent ruler is 6 mm.
9. The azimuth correction based topographical pointing device of claim 2, wherein: the upper portion of center pin (4) is cylindrical, the lower part is conical structure, and the overall height is 20mm, the cylindrical part radius of center pin (4) is 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120335825.4U CN213956409U (en) | 2021-02-05 | 2021-02-05 | Topographic map pointing device based on azimuth correction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120335825.4U CN213956409U (en) | 2021-02-05 | 2021-02-05 | Topographic map pointing device based on azimuth correction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213956409U true CN213956409U (en) | 2021-08-13 |
Family
ID=77198532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120335825.4U Expired - Fee Related CN213956409U (en) | 2021-02-05 | 2021-02-05 | Topographic map pointing device based on azimuth correction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213956409U (en) |
-
2021
- 2021-02-05 CN CN202120335825.4U patent/CN213956409U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206223068U (en) | A kind of contact line measuring scale | |
| CN201081728Y (en) | Auxiliary satellite positioning device for portable satellite antenna | |
| CN213956409U (en) | Topographic map pointing device based on azimuth correction | |
| CN204788388U (en) | GPS measures room angle support device | |
| CN204854728U (en) | Gradient rulers | |
| CN2287169Y (en) | Three dimension coordinate sampling device for arc dam | |
| CN201772878U (en) | Multi-purpose leveling instrument | |
| CN210154519U (en) | Rock mass structural plane spatial position measuring device | |
| CN112182812B (en) | Distribution line design method | |
| CN204495340U (en) | Surveyor's staff | |
| CN200984902Y (en) | Coordinate ruler | |
| CN214384491U (en) | Cross-river leveling target and measuring device | |
| CN206410673U (en) | Novel tunnel surface displacement measurement apparatus | |
| CN210375153U (en) | Instrument for measuring attitude of tunnel roof geological structure | |
| US6449854B1 (en) | Universal solar chart shadow plotter and method for plotting a shadow | |
| CN217133379U (en) | High-precision embedded bolt space center positioning and measuring tool | |
| CN2172855Y (en) | Floating-dial level measuring instrument for multi-direction measuring angles | |
| CN208567878U (en) | A kind of grade rod | |
| CN111023950A (en) | Slope measuring ruler for soil slope excavation | |
| CN212512765U (en) | Map marking device for mapping geographic information | |
| CN211441735U (en) | Surveying and mapping ruler with angle measuring scale | |
| CN216954507U (en) | Gradiometer | |
| CN216331108U (en) | Multifunctional geographical teaching drawing rule | |
| CN214224091U (en) | Slope roof template inclination measuring tool | |
| CN216245903U (en) | Multifunctional measuring scale |
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: 20210813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |