CN-224197514-U - Quick drawing ruler for navigation

Abstract

The utility model discloses a navigation quick plotting ruler, which relates to the technical field of navigation plotting, and comprises a ship line plotting ruler and a plotting measuring ruler, wherein a fan-shaped pattern with a vertex angle of 90 degrees is arranged on a panel of the ship line plotting ruler, first grooves are arranged on two radiuses of the fan-shaped pattern, an opening is arranged at the center of the fan-shaped pattern, angle scales are arranged at the arc of the fan-shaped pattern, a speed measuring ruler pattern and a plotting ruler pattern are arranged on a panel of the plotting measuring ruler, second grooves are arranged on the plotting ruler pattern, and logarithmic scale scales are arranged on the edge of the plotting measuring ruler. The utility model relieves the technical problem of inconvenient operation in the existing navigation plotting process.

Inventors

• XU XIN
• GAO YANG
• LI LONG
• YU RUNZE

Assignees

• 中国人民解放军陆军军事交通学院镇江校区

Dates

Publication Date

20260505

Application Date

20250314

Claims (5)

1. 1. A navigation quick drawing ruler is characterized by comprising a ship line plotting ruler and a drawing measuring ruler, wherein, A fan-shaped pattern with a vertex angle of 90 degrees is arranged on a panel of the ship-level line plotting ruler, first grooves are arranged on two radiuses of the fan-shaped pattern, an opening is arranged at the center of the fan-shaped pattern, and angle scales are arranged at the arc of the fan-shaped pattern; The panel of the drawing measuring ruler is provided with a speed measuring ruler pattern and a drawing ruler pattern, the drawing ruler pattern is provided with a second slot, and the edge of the drawing measuring ruler is provided with a logarithmic scale.
2. 2. The marine quick mapping ruler of claim 1, wherein the bit line plotting ruler and the mapping measuring ruler are rectangular transparent plates.
3. 3. The marine quick mapping ruler according to claim 1, wherein the horizontal axis of the speed measuring ruler pattern is the speed, and the vertical axis is the speed corresponding to different scales.
4. 4. The marine quick diagramming ruler according to claim 1, wherein the graphic ruler patterns comprise a sea level graphic ruler pattern and a kilometer graphic ruler pattern.
5. 5. The marine quick mapping ruler according to claim 1, wherein the tail ends of the patterns of the mapping ruler are marked with corresponding scales.

Description

Quick drawing ruler for navigation Technical Field The utility model relates to the technical field of navigation plotting, in particular to a quick navigation plotting ruler. Background In the ship navigation guarantee work, it is often necessary to plot azimuth ship position line networks, rapidly measure distances and calculate navigation speed. In order to quickly determine ship positions, azimuth ship position line networks are usually required to be plotted on blank charts in a manual mode at intervals of 1-2 degrees, currently, a protractor and a parallel ruler are usually adopted for matching and plotting, and the protractor and the parallel ruler are required to be frequently moved in the plotting process, so that the plotting process is time-consuming and labor-consuming, and errors are easy to cause. To quickly measure the distance on the graph, a distance graph ruler is usually manually plotted on a blank graph, so that measurement errors are easy to occur and the operation is inconvenient. In order to quickly acquire the navigational speed, a navigational course of 1 minute is usually measured, a logarithmic scale is adopted or ship position is calculated and acquired, and the operation is not convenient enough. Disclosure of utility model The utility model aims to solve at least one technical problem and provides a navigation quick drawing ruler. The embodiment of the utility model provides a navigation quick plotting ruler, which comprises a ship line plotting ruler and a plotting measuring ruler, wherein a fan-shaped pattern with a vertex angle of 90 degrees is arranged on a panel of the ship line plotting ruler, first grooves are arranged on two radiuses of the fan-shaped pattern, an opening is arranged at the center of the fan-shaped pattern, angle scales are arranged at the arc of the fan-shaped pattern, a speed measuring ruler pattern and a graph ruler pattern are arranged on the panel of the plotting measuring ruler, second grooves are arranged on the graph ruler pattern, and a logarithmic scale is arranged on the edge of the plotting measuring ruler. Further, the ship line plotting ruler and the plotting measuring ruler are rectangular transparent plates. Further, the horizontal axis of the speed measuring scale pattern is the navigational speed, and the vertical axis is the navigational speed corresponding to different scales. Further, the graphic ruler patterns comprise a sea chart ruler pattern and a kilometer chart ruler pattern. Further, the tail ends of the drawing scale patterns are marked with corresponding scale bars. The utility model provides a navigation quick plotting ruler, which can realize various functions of quick plotting of a ship line graph network, quick distance measurement, quick speed measurement and the like by arranging an opening and a slot on the ship line plotting ruler and arranging various speed measuring ruler groups and graph ruler patterns on the plotting measuring ruler, thereby relieving the technical problem of inconvenient operation in the conventional navigation plotting and plotting process. Drawings In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are needed in the detailed description of the embodiments and the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic diagram of a bit line plotting rule provided by an embodiment of the utility model; Fig. 2 is a schematic diagram of a drawing measuring scale according to an embodiment of the present utility model. In the figure, 1, a ship line plotting ruler, 11, a first slotting, 12, an opening, 13, an angle scale, 2, a drawing measuring ruler, 21, a speed measuring ruler pattern, 22, a second slotting, 23, a logarithmic scale, 24, a sea chart ruler pattern, 25 and a kilometer chart ruler pattern are shown. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The utility model provides a navigation quick plotting ruler which comprises a ship line plotting ruler 1 and a plotting measuring ruler 2. Fig. 1 is a schematic diagram of a bit line plotting rule provided according to an embodiment of the present utility model. As shown in figure 1, a fan-shaped pattern with a vertex angle of 90 degrees is arranged on a panel of the s