CN207028636U - A kind of compasses with graduated scale - Google Patents

Abstract

The utility model discloses a compass with a scale, which comprises a positioning leg and a nib leg parallel to each other, a scale is fixed on the same horizontal line of the positioning leg and the nib leg, and a pointed body, the bottom of the nib leg is provided with a nib, and the nib leg is slidably connected to the scale. The utility model can intuitively adjust the radius of the arc through the scale line on the scale without external measuring tools, greatly reduces the time for measuring the radius, improves the drawing efficiency and accuracy, and is convenient to use.

Description

A compass with a scale

technical field

The utility model belongs to the technical field of compasses, in particular to a compass with a scale.

Background technique

At present, known compass is made of nib, rotating shaft, compasses supporting leg, pen body, nib, compass point, earlet. It is very inconvenient to draw a circle of a certain size accurately, which is very inconvenient. Therefore, it is necessary to design a compass with a scale.

Utility model content

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a compass with a scale, which has a simple structure, good stability and good practicability.

The technical scheme adopted by the utility model to solve the problems of the prior art: a compass with a scale, including positioning legs and nib legs parallel to each other, and a scale is fixed on the same horizontal line of the positioning legs and nib legs, The bottom of the positioning leg is provided with a pointed body, the bottom of the nib leg is provided with a nib, and the nib leg is slidably connected to the scale.

Further, the pointed body can be retracted in the positioning leg to avoid injury to the user.

Further, the nib is detachably connected to the nib leg, which is convenient for replacing the nib.

Further, the scale is made of transparent plexiglass, which is durable and beautiful in appearance.

Adopting the above technical scheme, the utility model has the following beneficial effects: the utility model can intuitively adjust the radius of the arc through the scale line on the scale, without the need of external measuring tools, greatly reducing the time for measuring the radius and improving the Drawing efficiency and drawing accuracy, easy to use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a perspective view of the utility model;

Fig. 2 is the front view of the utility model.

In the figure: 1, positioning leg, 2, nib leg, 3, scale, 4, pointed body, 5, nib.

Detailed ways

In order to make the content of the utility model more clearly understood, the utility model will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

A compass with a scale as shown in Figures 1 and 2, comprises positioning legs 1 and nib legs 2 parallel to each other, and a scale 3 is fixed on the same horizontal line of the positioning legs 1 and nib legs 2, The bottom of the positioning leg 1 is provided with a pointed body 4 , and the pointed body 4 can be retracted in the positioning leg 1 . A nib 5 is provided at the bottom of the nib leg 2 , and the nib 5 is detachably connected to the nib leg 2 . The nib leg 2 is slidably connected to the scale 3 .

Specifically, the scale 3 is made of transparent organic glass.

The utility model can intuitively adjust the radius of the arc through the scale line on the scale 3 without using external measuring tools, and greatly reduces the time for measuring the radius. After determining the radius of the desired drawing, slide the nib leg 2 on the scale 3 to the corresponding scale, then take the positioning leg 1 as the center of the circle, and rotate the nib leg 2 around the positioning leg 1 to complete the drawing of the circle. The utility model improves drawing efficiency and drawing accuracy, and is convenient to use.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. It should be understood that the above descriptions are only specific embodiments of the present utility model and are not intended to limit the present invention. For the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (1)

1. a kind of compasses with scale, comprise positioning leg (1) and nib leg (2) parallel to each other, it is characterized in that: described positioning leg (1) and nib leg (2) are fixedly installed on the same horizontal line There is a scale (3), the bottom of the positioning leg (1) is provided with a pointed body (4), the bottom of the nib leg (2) is provided with a nib (5), and the nib leg (2) is slidably Connected to the scale (3), the pointed body (4) can be retracted in the positioning leg (1), and the nib (5) is detachably connected to the nib leg (2) , the scale (3) is made of transparent plexiglass.