CN205112763U - Draw and use multi -functional compasses - Google Patents

Abstract

The utility model discloses a multifunctional compasses for drawing, which comprises a connecting plate, a first gauge pin, a second gauge pin, a connecting rod, a first drawing pen and a second drawing pen; the first gauge pin and the second gauge pin The tops of the pins are all connected to the connecting plate through pin shafts; the bottom end of the first gauge pin is connected with a steel tip; the connecting rod is connected to the bottom end of the second gauge pin through fastening bolts; the first drawing pen and the second drawing pen The upper end is connected on the connecting rod by fastening bolts. The multifunctional compasses for drawing use a plurality of different drawing pens and a steel ruler with a scale in the first gauge foot, which can not only realize the convenient and quick measurement of the radius of the circle, but also realize the change of the color of the drawn circle; the display The board is simple to use, portable and inexpensive to make.

Description

A kind of multifunctional compasses for drawing

technical field

The utility model relates to the technical field of mathematics teaching appliances, in particular to a multifunctional compasses for drawing.

Background technique

Mathematics is one of the important subjects in middle school, and it is the basis for learning all kinds of homework. For some students with weak mathematical foundation, the speed of the teacher's teaching and the way the teacher teaches directly affect the effect of these students' lectures. In mathematics teaching, compasses Drawing is a common method of drawing in mathematics teaching. However, the drawing radius of the compass in the prior art generally needs to be measured with a ruler. Drawing is troublesome and delays the effective teaching time in the classroom; in addition, drawing cannot realize a compass Making circles of different colors cannot meet the teaching needs.

Utility model content

The purpose of this utility model is to provide a multifunctional compasses for drawing to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions: a multifunctional compasses for drawing, including a connecting plate, a first gauge pin, a second gauge pin, a connecting rod, a first drawing pen and a second drawing pen; Both the top ends of the first gauge foot and the second gauge foot are connected to the connecting plate through pin shafts; the bottom end of the first gauge foot is connected with a steel tip; the connecting rod is connected to the bottom end of the second gauge foot by fastening bolts; the second gauge foot is connected to the bottom end; The upper ends of the first drawing pen and the second drawing pen are connected on the connecting rod by fastening bolts.

Further, a groove is opened in the first gauge foot, and a steel ruler connected with the bottom end of the first gauge foot by bolts is arranged in the groove.

Further, a rotating rod is connected to the upper end of the connecting plate.

Further, a rubber box is provided at the side end of the first gauge foot.

Further, the steel ruler is provided with scale marks.

Compared with the prior art, the utility model has the beneficial effects that: the multifunctional compass for drawing adopts a plurality of different drawing pens and a steel ruler with a scale is arranged in the first gauge foot, which not only can realize the convenience of the circle radius Quickly measure, and can realize the change of the color of the circle; the utility model is easy to use, easy to carry, and low in production cost.

Description of drawings

Fig. 1 is the expanded structure schematic diagram of the utility model;

Among the reference signs: connecting plate 1; first gauge pin 2; second gauge pin 3; connecting rod 4; first drawing pen 5; second drawing pen 6; groove 21; steel ruler 211; rubber box a; fastening Bolt b; swivel rod 11; steel tip 22.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, the utility model provides a kind of technical scheme: a kind of multifunctional compasses for drawing, including connecting plate 1, first gauge foot 2, second gauge foot 3, connecting rod 4, first drawing pen 5 and the second Two drawing pens 6; the tops of the first gauge pin 2 and the second gauge pin 3 are connected with the connecting plate 1 through a pin; the bottom end of the first gauge pin 2 is connected with a steel tip 22; the connecting rod 4 passes through The fastening bolt b is connected to the bottom end of the second gauge foot 3; the upper ends of the first drawing pen 5 and the second drawing pen 6 are connected to the connecting rod 4 through the fastening bolt b.

Further, a groove 21 is opened in the first gauge foot 2 , and a steel ruler 211 connected with the bottom end of the first gauge foot 2 by bolts is arranged in the groove 21 .

Further, a rotating rod 11 is connected to the upper end of the connecting plate 1 .

Further, a rubber box a is provided at the side end of the first gauge foot 2 .

Further, the steel ruler 211 is provided with scale marks.

When the utility model is in use, the first drawing pen 5 and the second drawing pen 6 can use drawing pens of different colors, and when drawing, measure the first drawing pen 5 or the second drawing pen 6 with a steel ruler 211 The distance between the steel point 22 and the bottom end of the first gauge foot 2 can finally realize the measurement of the radius of the circle to be drawn, and realize the circles of different colors drawn by different colors of pens, which is very convenient to use.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and its improved concept should be covered by the protection scope of the present utility model.

Claims (5)

1. a drawing multifunctional compass, comprises connecting plate, the first regulation foot, the second regulation foot, connecting rod, the first picture pen and the second picture pen; It is characterized in that: pinned connection is all passed through with connecting plate in described first regulation foot and the second regulation foot top; Described first regulation foot bottom is connected with steel point; Described connecting rod is connected to the second regulation foot bottom by fastening bolt; Described first picture pen and a second picture upper end are connected on connecting rod by fastening bolt.

2. a kind of drawing multifunctional compass according to claim 1, is characterized in that: offer groove in described first regulation foot, is provided with the steel ruler be bolted with the first regulation foot bottom in groove.

3. a kind of drawing multifunctional compass according to claim 1, is characterized in that: described connecting plate upper end is connected with swingle.

4. a kind of drawing multifunctional compass according to claim 1, is characterized in that: described first regulation foot side is provided with rubber case.

5. a kind of drawing multifunctional compass according to claim 2, is characterized in that: described steel ruler is provided with graduation mark.