CN206678646U - A kind of combined type drawing instrument - Google Patents

Abstract

The utility model discloses a combined drawing tool, which comprises a ruler a, one end of the ruler a is connected with the end of the ruler b through a pin shaft, and T-shaped grooves are evenly distributed along the lengthwise direction of the ruler a and the ruler b , the T-shaped groove on the ruler a is provided with a bolt a matched with it, and the end of the bolt a is sleeved with a nut a; the T-shaped groove on the ruler b is provided with a bolt b matched with it, and the bolt b is A nut b is sleeved and a suction cup is fixedly connected to the end thereof; a measuring angle device is also arranged at the junction of the ruler a and the ruler b. The utility model can conveniently draw different shapes such as triangles, circles, and straight lines through the use of rulers, suction cups, pen covers, dials, and pointers, and can also measure angles and lengths at the same time. The utility model has a simple structure and a small volume. It has various functions and has good use value.

Description

A Combined Drawing Tool

technical field

The utility model belongs to the technical field of teaching aids, in particular to a combined drawing tool.

Background technique

In the teaching process of primary and secondary schools, due to the needs of drawing, teachers need to use various drawing tools such as rulers, compasses, triangles, protractors, etc., and teachers need to carry multiple drawing tools every time they go to class, which is troublesome to carry; when drawing geometric figures , it is necessary to change the drawing tools frequently, which greatly reduces the drawing efficiency. Although the drawing tool in the existing patent "Multifunctional Combined Drawing Tool" (Patent No.: CN2014202800651, Publication No.: CN203920156U, Publication Date: 2014-11-05) can improve drawing efficiency, it uses a protractor to measure angles, etc. The drawing is large in size and inconvenient to carry, causing certain troubles when using it.

Utility model content

The purpose of the utility model is to provide a combined drawing tool, which solves the problem of single function and large volume of the existing drawing tool.

The technical solution adopted by a combined drawing tool of the utility model is to include a ruler a, one end of the ruler a is connected with the end of the ruler b through a pin shaft, and the lengthwise distribution of the ruler a and the ruler b is evenly distributed. There is a T-shaped groove, and the T-shaped groove on the ruler a is provided with a bolt a matched with it, and the end of the bolt a is sleeved with a nut a; the T-shaped groove on the ruler b is provided with a bolt b matched with it , A nut b is sleeved on the bolt b and a suction cup is fixedly connected to its end; a measuring angle device is also provided at the junction of the ruler a and the ruler b.

The utility model is also characterized in that,

Scales are arranged on the ruler a and the ruler b, and both are made of organic transparent glass.

One end of both the ruler a and the ruler b is in the shape of a rectangle, and the other end is in the shape of a semicircle, and the semicircle shape of the two is the same, and the two are connected at the end of the semicircle.

A pen cover is sleeved on the nut a, and the pen cover and the suction cup are located at the same end.

The length of bolt b is not less than the length of bolt a.

The angle measuring device includes a circular dial and a pointer, the dial is located on the ruler a and coincides with its semicircular arc, and the pointer is located on the ruler b and contacts the dial.

The beneficial effects of the utility model are: a combined drawing tool of the utility model can conveniently draw different shapes such as triangles, circles, straight lines, etc. The utility model has the advantages of simple structure, small volume, various functions and good use value for measuring angle size and length size.

Description of drawings

Fig. 1 is the structural representation of a kind of combined drawing tool of the present utility model;

Fig. 2 is a side view of a combined drawing tool of the present invention.

In the figure, 1. Ruler a, 2. Pin shaft, 3. Ruler b, 4. T-slot, 5. Bolt a, 6. Nut a, 7. Bolt b, 8. Nut b, 9. Suction cup, 10. Pen case, 11. Dial, 12. Pointer.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model is a combined drawing tool, as shown in Figure 1 and Figure 2, comprising a ruler a1, one end of the ruler a1 is connected with the end of the ruler b3 through a pin shaft 2, along the direction of the ruler a1 and the ruler b3 There are T-shaped slots 4 evenly distributed in the longitudinal direction, and the T-shaped slots 4 on the ruler a1 are provided with bolts a5 matched with them, and the ends of the bolts a5 are sleeved with nuts a6; the T-shaped slots 4 on the ruler b3 are provided with There is a bolt b7 matched with it, a nut b8 is sheathed on the bolt b7 and a suction cup 9 is fixedly connected to the end thereof; a measuring angle device is also arranged at the junction of the ruler a1 and the ruler b3.

Both the ruler a1 and the ruler b3 are provided with scales, and both are made of organic transparent glass, and are used as a ruler to measure length and the like.

One end of both the ruler a1 and the ruler b3 is rectangular, and the other end is semicircular, and the semicircular shape of the two is the same. The semicircular end of the ruler a1 is provided with a groove, and the half of the ruler b3 The arc end is in the shape of a protrusion, and the groove matches the protrusion and is connected by the pin shaft 2 .

A pen cover 10 is also sleeved on the nut a6, and the pen cover 10 and the suction cup 9 are located at the same end, and chalk etc. are placed in the pen cover 10, which cooperates with the suction cup 9 to be used as a compass.

The length of the bolt b7 is not less than the length of the bolt a5, because the end of the bolt a5 is provided with a pen cap 10, and chalk etc. are placed inside it, when the bolt a5 is too long, the effect of the compass is difficult to realize.

The measuring angle device includes a circular dial 11 and a pointer 12. The dial 11 is located on the ruler a1 and coincides with its semicircular arc. The pointer 12 is located on the ruler b2 and is in contact with the dial 11. By rotating the ruler a1 and The ruler b3, the dial 11 and the pointer 12 can measure different angles and draw arcs or triangles with different angles.

The utility model measures the straight-line distance through the ruler a1 and the ruler b3; by rotating the ruler a1 and the ruler b3, the dial 11 and the pointer 12 can be used to measure the angle; The utility model can be used to draw arcs, circles, etc.; the utility model has the advantages of simple structure, small volume, portability, improved drawing efficiency, and good use value.

Claims (6)

1. A combined drawing tool is characterized in that it comprises a ruler a (1), and one end of the ruler a (1) is connected with the end of the ruler b (3) by a bearing pin (2), along the T-shaped grooves (4) are evenly distributed in the lengthwise direction of the ruler a (1) and the ruler b (3), and the T-shaped groove (4) on the described ruler a (1) is provided with matching Bolt a (5), the end of the bolt a (5) is sleeved with a nut a (6); the T-shaped groove (4) on the ruler b (3) is provided with a bolt b (7) matched with it ), the bolt b (7) is sleeved with a nut b (8) and its end is affixed with a suction cup (9); the connection between the ruler a (1) and the ruler b (3) is also provided with Protractor device. 2. a kind of combined drawing tool according to claim 1, is characterized in that, described ruler a (1) and ruler b (3) are all provided with scale, and both are made of organic transparent glass production. 3. a kind of combined drawing tool according to claim 1, is characterized in that, one end of described ruler a (1) and ruler b (3) both are rectangular, and the other end is all semicircular arc shape, and the semicircular arc shape of the two is the same, and the two are connected at the semicircular arc end. 4. A combined drawing tool according to claim 1, characterized in that the nut a (6) is also sleeved with a pen cap (10), and the pen cap (10) and the suction cup (9) are located at the same end. 5. A combined drawing tool according to claim 1, characterized in that the length of the bolt b (7) is not less than the length of the bolt a (5). 6. A combined drawing tool according to claim 3, characterized in that said measuring angle device comprises a circular dial (11) and a pointer (12), and the dial (11) is located at a ruler a On (1) and coincident with its semicircular arc, the pointer (12) is located on the ruler b (3) and is in contact with the dial (11).