CN2725034Y - Drawing compasses - Google Patents

Abstract

The utility model relates to drawing compasses which comprises a fixed needle adjusting rod and a fixed needle at the lower part. The utility model is characterized in that the lower end of the moving needle adjusting rod is connected with a pen container which is provided with a neutral pen core, and the lower end of the pen container is connected with a fixed cap. Owing to the moving needle adjusting rod of the compass being improved to a structure with a pen container and an adjusting rod, the gel type neutral pen core can be put into the pen container, a pen core fixing cap can be tightened from the lower end, and a moving needle pen core is extended from the bottom opening of the fixed cap. Therefore, the neutral pen core can be directly used for drawing, the size of the neutral pen core can be adjusted in order to reach the requests of drawing different sizes.

Description

A kind of drawing compass

Affiliated field

The utility model relates to a kind of drawing instrument, and what relate to specifically is a kind of drawing compass.

Background technology

Presently used drawing compass is to use the pencil pen core mostly, and institute's drawing sheet is unintelligible, draws and adopt duck to chew pen, and it is irregular China ink then can to occur telling, and will often replenish ink, very inconvenient.

Technology contents

The utility model is in order to solve the deficiencies in the prior art part, provide a kind of make the drawing picture clear, tell China ink evenly, and can adjust the drawing compass of pen core at any time.

For achieving the goal, the utility model provides following technical solution:

A kind of drawing compass comprises the pin of deciding of deciding pin adjusting rod and lower end thereof, and it is characterized in that, moving pin adjusting rod lower end connects the pen container of built-in Neutral ball-point for ball-point pen, and the pen container lower end is connected and fixed cap.

The utility model adds the adjusting rod structure owing to the moving pin adjusting rod with compasses is improved to pen container, therefore, the water type of packing in pen container Neutral ball-point for ball-point pen, the pen core locking cap is tightened from the lower end, moving pin pen core exposes from the locking cap end opening, thereby make Neutral ball-point for ball-point pen can be directly used in drawing, and adjust the thickness of Neutral ball-point for ball-point pen, also can reach the needs of drawing different thicknesses.

Description of drawings

Accompanying drawing is a structural representation of the present utility model

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

As shown in the figure, compasses decides pin adjusting rod 4 lower ends for deciding pin 5, moving pin adjusting rod 3 lower ends connection pen container 1, the lower end connection pen core locking cap 2 of pen container 1.

During use, locking cap 2 is backed out the Neutral ball-point for ball-point pen 7 of packing into, pen core locking cap 2 is tightened from the lower end, and moving pin pen core 6 exposes from locking cap 2 end openings, and pen core can be directly used in drawing.

Claims (1)

1. A kind of drawing compass, comprise decide pin adjusting rod (4) and lower end thereof decide pin (5), it is characterized in that: moving pin adjusting rod (3) lower end connects the pen container (1) of built-in Neutral ball-point for ball-point pen (7), and pen container (1) lower end is connected and fixed cap (2).

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