CN204726080U

CN204726080U - A kind of pencil of navigation drawing

Info

Publication number: CN204726080U
Application number: CN201520381704.8U
Authority: CN
Inventors: 缪从金; 揭军武
Original assignee: Hainan Institute of Science and Technology
Current assignee: Hainan Institute of Science and Technology
Priority date: 2015-06-06
Filing date: 2015-06-06
Publication date: 2015-10-28
Anticipated expiration: 2025-06-06

Abstract

The utility model discloses a kind of pencil of navigation drawing, it comprises pen core, and be coated on the body outside described pen core and the pen cap being enclosed within described body side, described pen core is four prisms cylinder, and the described pen cap is made up of first pen cap, connecting ring and second pen cap.Pen core is duckbill, can not produce most advanced and sophisticated to damage navigation drawing, and the pen cap can wiping person's handwriting, and second pen cap can insert extension bar, conveniently can extend pencil when pencil is very short, improves the utilization rate of pencil, cuts the waste.The pen cap can also be enclosed within the tip of pen core by pencil when not using, protection pen core.

Description

A kind of pencil of navigation drawing

Technical field

The utility model relates to field of stationery, especially relates to a kind of pencil of navigation drawing.

Background technology

At naval technology teaching field, sea chart is in flight-line design, and student, when using common pencil operation, easily occurs that sea chart breakage is too fast, the problem of the bad erasing of person's handwriting.Be necessary to design a kind of pencil, make person's handwriting more easily wipe and not injure sea chart, sea chart useful life is lengthened.In addition requirement pencil length also being had to a top drawn by sea chart, and namely the length that general pencil is shorter than original half cannot meet the condition that sea chart is drawn, drawing difficulty.

Utility model content

Technical problem to be solved in the utility model is the defect overcoming the existence of above-mentioned prior art, provides one to facilitate erasing handwriting, improves the pencil of the navigation drawing of utilization rate.

For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:

A kind of pencil of navigation drawing, it comprises pen core, be coated on the body outside described pen core and the pen cap being enclosed within described body side, it is characterized in that: described pen core is four prisms cylinder, the described pen cap is made up of first pen cap, connecting ring and second pen cap, and described pen core is duckbill, and the described pen cap can wiping person's handwriting, this pen cap can be enclosed within the tip of pen core, is inserted with an extension bar in described second pen cap.

Implement the pencil of this navigation drawing of the present utility model, there is following beneficial effect: pen core is duckbill, tip can not be produced damage navigation drawing, the pen cap can wiping person's handwriting, and second pen cap can insert extension bar, conveniently can extend pencil when pencil is very short, improve the utilization rate of pencil, cut the waste.The pen cap can also be enclosed within the tip of pen core by pencil when not using, protection pen core.

Accompanying drawing explanation

Fig. 1 is the pencil structural representation of this navigation drawing of the present utility model;

Fig. 2 is the schematic cross-section of the pen cap in Fig. 1.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.

The pencil of navigation drawing of the present utility model as shown in Figure 1 to Figure 2, it comprises pen core 1, be coated on the body 2 outside described pen core and the pen cap 3 being enclosed within described body 2 side, described pen core 1 is four prisms cylinder, and the described pen cap 3 is made up of first pen cap 31, connecting ring 32 and second pen cap 33.Pen core 1 is duckbill, can not produce most advanced and sophisticated to damage navigation drawing, and the pen cap 3 can wiping person's handwriting, and second pen cap 33 can insert extension bar 4, conveniently can extend pencil when pencil is very short, improves the utilization rate of pencil, cuts the waste.The pen cap 3 can also be enclosed within the tip of pen core 1 by pencil when not using, protection pen core.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. the pencil of a navigation drawing, it comprises pen core, be coated on the body outside described pen core and the pen cap being enclosed within described body side, it is characterized in that: described pen core is four prisms cylinder, the described pen cap is made up of first pen cap, connecting ring and second pen cap, and described pen core is duckbill, and the described pen cap can wiping person's handwriting, this pen cap can be enclosed within the tip of pen core, is inserted with an extension bar in described second pen cap.