CN205326596U

CN205326596U - Multi -functional drawing compass

Info

Publication number: CN205326596U
Application number: CN201620024171.2U
Authority: CN
Inventors: 王新春
Original assignee: North China University of Science and Technology
Current assignee: North China University of Science and Technology
Priority date: 2016-01-04
Filing date: 2016-01-04
Publication date: 2016-06-22
Anticipated expiration: 2026-01-04

Abstract

The utility model discloses a multi -functional drawing compass, including first chi leg, second chi leg, pivot, protractor, written tight loop, drawing pen, hinge, compasses apart from chi, radius adjusting nut, written sleeve, rule needle tight loop, rule needle, the elasticity can be adjusted with the end through the round pin hub connection on the angulation ware, round pin axle to first chi leg and second chi leg, it is together rotatory with the external screw thread of protractor that the internal thread is passed through in the pivot, and the pivot top is equipped with little compass, compasses pass through hinge and first chi leg middle part apart from chi one end and are connected and fix, the compasses slide that is equipped with inside apart from the chi, radius adjusting nut pass through the slide and fasten compasses on second chi leg apart from the chi for set for the radial distance of compasses, first chi leg end is equipped with written sleeve, and near written sleeve is equipped with written tight loop, second chi leg tail end, the fastening of go -gauge needle tight loop are gone into in rule cushion, compasses are equipped with the distance marker line apart from the slide upper end of chi.

Description

A kind of multifunctional drawing compasses

Technical field

This utility model relates to mathematics drawing equipment applied technical field, especially a kind of multifunctional drawing compasses。

Background technology

Compasses, in mathematics and drawing, are used to draw the instrument of circle or string, are usually used in construction with ruler and compasses。Making of compasses is usually metal, connects by a hinge or bearing pin including two parts。

In existing mathematical education, compasses are commonly used to be arrived, and the circular arc finished in analytical geometry is generally also performed to the measurement of circular arc radian, if used with protractor combination by compasses, both can avoid taking back and forth the loaded down with trivial details situation of instrument when measurement。

Utility model content

Prior art is difficult to meet the productive life needs of people, and for the problems referred to above, this utility model aims to provide a kind of multifunctional drawing compasses。

For realizing this technical purpose, the technical solution adopted in the utility model is: a kind of multifunctional drawing compasses, including the first chi lower limb, the second chi lower limb, rotating shaft, protractor, nib tight loop, drawing pencil, hinge, compasses range arm, radius adjusting nut, nib sleeve, compass needle tight loop, compass needle；Described first chi lower limb and the second chi lower limb are connected by the bearing pin on protractor with end, and bearing pin can adjusting tightness；Rotating shaft passes through female thread together with the external screw thread rotation of protractor, and rotating shaft top is provided with little compass；Compasses range arm one end is connected by hinge and the first chi midleg and is fixed；Being provided with slideway inside compasses range arm, compasses range arm is fastened on the second chi lower limb by slideway by radius adjusting nut, for setting the distance of compasses radius；First chi lower limb end is provided with nib sleeve, and is provided with nib tight loop near nib sleeve；Drawing pencil inserts in nib sleeve, and is fastened by nib tight loop；Compass needle inserts the second chi lower limb tail end, is fastened by compass needle tight loop；The slideway upper end of compasses range arm is provided with distance scale line；The first chi lower limb back side is provided with graduation mark；It is additionally provided with mercurial thermometer inside second chi lower limb rear end。

As further technical scheme of the present utility model: rotating shaft, nib sleeve, compass needle tight loop are designed with anti-slip veins；Drawing pencil upper end is provided with rubber, and lower end is equipped with pencil stub。

Compared with prior art, the beneficial effects of the utility model are: this mathematical education multifunctional compass, draw under circle effect premise realizing compasses, it is also possible to realize the effect of arc measurement and linear measure longimetry, more accurate than common drawing for compasses；Rotating shaft is arranged over compass, it is possible to the effect of direction indication during for field draw multi；Mercurial thermometer on compasses can measure temperature at any time；Overall structure is simple, practical, it is easy to promote the use of。

Accompanying drawing explanation

Fig. 1 is this utility model overall structure schematic diagram；

Fig. 2 is rotating shaft top compass figure of the present utility model；

Wherein: first chi lower limb the 1, second chi lower limb 2, rotating shaft 3, protractor 4, nib tight loop 5, drawing pencil 6, hinge 7, compasses range arm 8, radius adjusting nut 9, nib sleeve 10, compass needle tight loop 11, compass needle 12。

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。

Refer to Figure of description 1～2, in this utility model embodiment, a kind of multifunctional drawing compasses, including the first chi lower limb, the second chi lower limb, rotating shaft, protractor, nib tight loop, drawing pencil, hinge, compasses range arm, radius adjusting nut, nib sleeve, compass needle tight loop, compass needle；Described first chi lower limb and the second chi lower limb are connected by the bearing pin on protractor with end, and bearing pin can adjusting tightness；Rotating shaft passes through female thread together with the external screw thread rotation of protractor, and rotating shaft top is provided with little compass；Compasses range arm one end is connected by hinge and the first chi midleg and is fixed；Being provided with slideway inside compasses range arm, compasses range arm is fastened on the second chi lower limb by slideway by radius adjusting nut, for setting the distance of compasses radius；First chi lower limb end is provided with nib sleeve, and is provided with nib tight loop near nib sleeve；Drawing pencil inserts in nib sleeve, and is fastened by nib tight loop；Compass needle inserts the second chi lower limb tail end, is fastened by compass needle tight loop；The slideway upper end of compasses range arm is provided with distance scale line；The first chi lower limb back side is provided with graduation mark；It is additionally provided with mercurial thermometer inside second chi lower limb rear end。

This mathematical education multifunctional compass, draws under circle effect premise realizing compasses, it is also possible to realize the effect of arc measurement and linear measure longimetry, more accurate than common drawing for compasses；Rotating shaft is arranged over compass, it is possible to the effect of direction indication during for field draw multi；Mercurial thermometer on compasses can measure temperature at any time。

To those skilled in the art, but this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when without departing substantially from spirit of the present utility model or basic feature, it is possible to realize this utility model in other specific forms。Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in this utility model。Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved。

The above; it is only preferred embodiment of the present utility model; not in order to limit this utility model, every any trickle amendment, equivalent replacement and improvement above example made according to technical spirit of the present utility model, should be included within the protection domain of technical solutions of the utility model。

Claims

1. multifunctional drawing compasses, including the first chi lower limb (1), the second chi lower limb (2), rotating shaft (3), protractor (4), nib tight loop (5), drawing pencil (6), hinge (7), compasses range arm (8), radius adjusting nut (9), nib sleeve (10), compass needle tight loop (11), compass needle (12)；It is characterized in that: described first chi lower limb (1) and the second chi lower limb (2) are connected by the bearing pin on protractor (4) with end, and bearing pin can adjusting tightness；Rotating shaft (3) is by together with the external screw thread of female thread and protractor (4) rotates, and rotating shaft (3) top is provided with little compass；Compasses range arm (8) one end is connected by hinge (7) with the first chi lower limb (1) middle part and fixes；Compasses range arm (8) is internal is provided with slideway, and compasses range arm (8) is fastened on the second chi lower limb (2) by slideway by radius adjusting nut (9), for setting the distance of compasses radius；First chi lower limb (1) end is provided with nib sleeve (10), and is provided with nib tight loop (5) near nib sleeve (10)；Drawing pencil (6) inserts in nib sleeve (10), and is fastened by nib tight loop (5)；Compass needle (12) inserts the second chi lower limb (2) tail end, is fastened by compass needle tight loop (11)；The slideway upper end of compasses range arm (8) is provided with distance scale line；First chi lower limb (1) back side is provided with graduation mark；It is additionally provided with mercurial thermometer inside second chi lower limb (2) rear end。

2. a kind of multifunctional drawing compasses according to claim 1, it is characterised in that: rotating shaft (3), nib sleeve (10), compass needle tight loop (11) are designed with anti-slip veins；Drawing pencil (6) upper end is provided with rubber, and lower end is equipped with pencil stub。