CN208993365U

CN208993365U - A kind of compasses with a scale

Info

Publication number: CN208993365U
Application number: CN201820773204.2U
Authority: CN
Inventors: 蒋中港; 徐冰
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2018-05-23
Filing date: 2018-05-23
Publication date: 2019-06-18
Anticipated expiration: 2028-05-23

Abstract

The utility model discloses a kind of compasses with a scale, including the shaft with needle point, the dial with nib, the middle part of needle point and the middle part of dial are hinged by hinge, dial is in inverted L-shaped, the top of dial is provided with scale, the position that shaft corresponds to scale is provided with transparent reading area, is provided with bindiny mechanism between the top of shaft and the dial where scale.The structure design of the utility model is reasonable, by setting with graduated dial, convenient for passing through radius value required for measuring on compasses, the circle of specified radius is directly drawn, it is convenient to use, simultaneously, the setting of bindiny mechanism can further limit motion track of the shaft on dial.

Description

A kind of compasses with a scale

Technical field

The utility model belongs to stationery technical field, and in particular to a kind of compasses with a scale.

Background technique

Compasses are common study article, for student or layout design worker, are often existed using compasses The operation such as paper upper drawing circle arc or circle, currently, various compasses available on the market, than if any two compass legs being fixed In the compasses of an angle, there are the compasses that can replace rubber on compasses head, there is the compasses for preventing compasses head from skidding, ordinary circumstance Under, when using compasses to carry out operation, user will use graduated scale as auxiliary tool and be needed more with obtaining the radius of drawn circle A tool is come to complete picture circle target be very cumbersome for users.

Utility model content

Aiming at the problems existing in the prior art, what the utility model designed is designed to provide a kind of circle with a scale Rule.

The utility model is realized by the following technical programs:

Described one kind compasses with a scale, it is characterised in that the shaft including having needle point, the dial with nib, The middle part of the needle point and the middle part of dial are hinged by hinge, and the dial is in inverted L-shaped, the top of dial It is provided with scale, the position that the shaft corresponds to scale is provided with transparent reading area, where the top of the shaft and scale Bindiny mechanism is provided between dial.

Described one kind compasses with a scale, it is characterised in that scale dial scale position end is provided with encapsulated Head.

Described one kind compasses with a scale, it is characterised in that be provided with red at the center position in the transparent reading area Indicator.

Described one kind compasses with a scale, it is characterised in that the bindiny mechanism include the draw runner being arranged in shaft, The sliding slot being used cooperatively on dial with draw runner is set.

Described one kind compasses with a scale, it is characterised in that the graduated one end of the dial setting is arc-shaped to be set It sets.

Described one kind compasses with a scale, it is characterised in where the arc-shaped setting of sliding slot, radian and scale Radian at dial position is identical.

The structure design of the utility model is reasonable, by setting with graduated dial, convenient for by measuring on compasses Required radius value is taken, the circle of specified radius is directly drawn, it is convenient to use, meanwhile, the setting of bindiny mechanism can be into one Step limits motion track of the shaft on dial.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is Fig. 1 backsight structural representation；

In figure, 1- needle point, 2- shaft, 3- is written, 4- dial, 5- hinge, 6- scale, the transparent reading area 7-, and 8- is encapsulated Head, 9- red indicator, 10- draw runner, 11- sliding slot.

Specific embodiment

The utility model is described in further detail below in conjunction with Figure of description, and provides specific embodiment.

As shown in Figs. 1-2, a kind of compasses with a scale can directly be drawn by measuring the radius values of needs on compasses The circle of specified radius.Its specific structure include with needle point 1 shaft 2, with nib 3 dial 4, the middle part of needle point 1 with The middle part of dial 4 is hinged by hinge 5, realizes the adjustment of shaft 2 and 4 angle of dial, and dial 4 is in inverted L-shaped, The top of dial 4 is provided with scale 6, and for convenience of reading, the position of the corresponding scale 6 of shaft 2 is provided with transparent reading area 7, And it is provided with red indicator 9 at the center position in transparent reading area 7, to realize, precisely reading, dial 4 are provided with scale 6 The arc-shaped setting in one end.

For motion track of the limitation shaft 2 on dial 4,4 scale position end of dial is provided with encapsulated head 8, The movable region of shaft 2 is limited, prevents shaft 2 from producing the limited region of scale, for the rotary motion trace for further limiting shaft, is being turned It is provided with bindiny mechanism between the top of axis 2 and the dial 4 where scale 6, which includes being arranged in shaft 2 Draw runner 10, the sliding slot 11 that the arcuate structure being used cooperatively on dial 4 with draw runner 10 is set, the radian of sliding slot 11 and scale institute Dial position at radian it is identical, draw runner 10 is embedded just below sliding slot 11, and only sliding slot 11 formed track in slide, Further limit 2 motion profile of shaft.

In use, user needs to observe scale zone, shaft 2 is rotated, until the red instruction in transparent reading area 7 Needle 9 is overlapped with desired radius value, at this point, written 3 at a distance from needle point 1 to be read registration, the top for pinching shaft carries out picture After circle, can draw specified radius circle.

Claims

1. a kind of compasses with a scale, it is characterised in that including the shaft (2) with needle point (1), the dial with written (3) (4), the middle part of the shaft (2) and the middle part of dial (4) are hinged by hinge (5), and the dial (4) is in L shape, the top of dial (4) are provided with scale (6), and the position of the shaft (2) corresponding scale (6) is provided with transparent reading area (7), bindiny mechanism, the bindiny mechanism are provided between the top of the shaft (2) and the dial (4) where scale (6) Including the sliding slot (11) being used cooperatively on dial (4) with draw runner (10) in the draw runner (10) on shaft (2), setting is arranged.

2. a kind of compasses with a scale as described in claim 1, it is characterised in that scale dial scale position end is set It is equipped with encapsulated head (8).

3. a kind of compasses with a scale as described in claim 1, it is characterised in that the center position of transparent reading area (7) Place is provided with red indicator (9).

4. a kind of compasses with a scale as described in claim 1, it is characterised in that dial (4) setting graduated one Hold arc-shaped setting.

5. a kind of compasses with a scale as described in claim 1, it is characterised in that the arc-shaped setting of the sliding slot (11), radian It is identical as the radian at the dial position where scale.