CN2772834Y

CN2772834Y - Multifunctional ruler

Info

Publication number: CN2772834Y
Application number: CN 200520028268
Authority: CN
Inventors: 谢荣霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-17
Filing date: 2005-02-17
Publication date: 2006-04-19
Anticipated expiration: 2015-02-17

Abstract

The utility model relates to a multifunctional ruler which belongs to the technical field of drawing geometrical figures on paper or board surfaces. The utility model solves the main proposal that two rulers and a protractor are connected through a wheel shaft, the two rulers are combined upwards and downwards by a locking key structure, an upper ruler can be rotated on a lower ruler and the two rulers are used for drawing corresponding angles according to angles pointed by angle indication lines. A button type stitch device and round holes which are orderly arranged on the lower ruler form the function of a pair of compasses. A stitch is used as a fixed point and a pen which is inserted into the round holes of the lower ruler is used as a movably point for drawing circles, arcs, fans, etc. The upper and the lower rulers are combined for drawing lines, surfaces and bodies for achieving the purpose of drawing various geometrical figures with one ruler. The utility model has the main purposes of a teaching aid used for drawing the figures for teachers to teach and demonstrate, and a tool for students to learn.

Description

The multi-functional chi of using

Affiliated technical field

The utility model relates to a kind ofly draws geometric device at paper or plate face.

Background technology

Draw geometric figure at present on paper or plate face, just can finish with several instruments simultaneously, the user will be with multiple instrument, and is inconvenient, loaded down with trivial details.

Summary of the invention

Just for the deficiency that will use multiple instrument to finish simultaneously when overcoming the picture geometric figure, the utility model provides a kind of multipurpose ruler, with its multiple geometric figure that can draw, easy to use, it can replace multiple drawing tools.

Technical solutions of the utility model are: two rulers and a protractor are linked together by wheel shaft, and last chi can play on the chi rotate, and combines by chi about the locking key structure handle.When rotating, last chi, knows the number of degrees of present two chi angulations, the angle of the required angle of can drawing according to the angle index line with angle of play chi generation.The circular hole of arranging in order on push button stitch and the play chi is equal to the function of compasses, and stitch is fixed point, inserts pen in the chi circular hole down for moving round, fan-shaped, the arc of pointing with the finger or gesticulate etc.But chi reaches a chi and can draw multiple geometric purpose in conjunction with setting-out, face, body up and down.

Description of drawings

Embodiment further specifies the utility model below in conjunction with accompanying drawing:

Figure one is an overall plan view of the present utility model;

Figure two is the chi planes of going up of the present utility model;

Figure three is chi planes down of the present utility model;

Figure four is that chi wheel part is pressed the A-A profile of arrow direction on the utility model;

Figure five is B-B profiles that the chi shaft portion is pressed the arrow direction under the utility model;

Figure six presses the B-B profile of arrow direction when the chi shaft portion is static under the utility model;

Figure seven presses the B-B profile of arrow direction when the chi shaft portion is stressed under the utility model;

Figure eight is the utility model planes when implementing the picture angle;

Figure nine is the utility model planes at enforcement picture circle, arc figures:

Among the figure: 1. go up chi; 2. protractor; 3. angle index line; 4. take turns; 5. locking key; 6. spring; 7. lock box; 8. go up the chi graduation mark: 9. play chi; 10. circular hole; 11. following chi graduation mark; 12. angle index line; 13. button; 14. spring; 15. stitch; 16. locking card; 17. axle; 18. circular trough; 19. base plate; 20. pin hole; 21. wave tooth.

The specific embodiment

Axle (a 17) wheel shaft structure in Fig. 2 among wheel (4) and Fig. 3 makes that chi (9) is combined together to form Fig. 1 under the chi (1).Fig. 4 goes up chi (1) wheel part to press the A-A profile of arrow direction, the location drawing of spring (6) locking key (5).Spring (6) one ends among Fig. 4 contact with concentric locking key (5), other end lock box (7) contact of the interior end, the other end of locking key (5) contacts with circular trough (18) among Fig. 5, the part of locking key (5) is in the circular trough (18) of axle (17), another part is in wheel (4), wheel shaft is combined, can not break away from; Strengthen frictional force making by locking key (5) under the effect of spring (6) between wheel (4), the axle (17), last chi (1) chi (9) is not down having freely to change its state under the external force effect, the maintenance certain angle.

(8), (11) among Fig. 3 among Fig. 2 are the graduation marks of chi; Graduation mark (8) is at the edge of last chi (1); Graduation mark (11) is at the edge of following chi (9).The top edge of chi (9) under among Fig. 3, one side of axle (17) to be angle index line (12) opposite side the be circular hole of arranging in order (10), last chi (1), the top edge of chi (9) overlaps with angle index line (12) axle center by axle (17) in a straight line down: the angle of angle index line (12) indication is exactly the angle of upward chi (1) and following chi (9) formation when going up chi (1) among Fig. 8 and rotating counterclockwise on chi (9) down.Wave tooth (21) can be drawn wave at the lower limb of following chi (9).

Fig. 5 is that down chi (9) shaft portion is pressed the B-B profile of arrow direction, and axle (17) be a hollow shaft, in the PBU pushbutton unit of button (13), spring (14), stitch (15), locking card (16) composition is arranged; Button (13) is connected with an end of stitch (15), and with an end in contact of spring (14), stitch (15) other end passes spring (14) and is connected with locking card (16) with pin hole (20) in the negative (19); Button (13), spring (14), stitch (15), locking card (16) are on the same axis dead in line with axle (17).

Button among Fig. 7 (13) promotes stitch (15) and stretches out down chi (9) bottom surface by the pin hole (20) in the negative (19) when stressed, refer to that inserting pen at the fixed point of cartridge paper or plate and circular hole (10) interosculates and can draw circle, arc, fan-shaped etc. for moving.

Last chi (1), following chi (9), protractor (2), PBU pushbutton unit, circular hole (10) mutually combine and can draw multiple geometric figure.

Claims

1. multi-functional chi of using, by last chi, chi, protractor, push button stitch, spring locking key combination on wheel shaft down, it is characterized in that: chi is combined by wheel shaft up and down, and pins by the slip locking key, protractor is combined on the chi with the wheel Heart-to-Heart, adorns a pressing stitch in the following chi axle with one heart.

2. the multi-functional chi of using according to claim 1, it is characterized in that: go up chi and following chi and combine by wheel shaft, pinning upward by the spring locking key, chi can not break away from following chi, last chi is rotating on the chi down, and a locking key part is in following chi axle medial launder, and a part is in last chi wheel, when last chi rotates on following chi, slide in the circular trough of locking key on following chi axle, all be carved with graduation mark on last chi, following chi, the protractor, following chi is arranged a plurality of circular holes in order.

3. the multi-functional chi of using according to claim 1, it is characterized in that: empty part is adorned a pressing stitch concentric with axle in the middle of axle, static under spring action, do not expose in stitch Tibetan and the following chi, under external force, when pressing the button, stitch stretches out chi bottom surface down, with the circular hole formation fixed point and moving some function in the following chi.