CN216443367U

CN216443367U - A drawing auxiliary device for physical education

Info

Publication number: CN216443367U
Application number: CN202123154855.4U
Authority: CN
Inventors: 向莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-06
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a drawing auxiliary device for physical education, which comprises a first ruler body, wherein a device cavity is formed in the wall body of the first ruler body, a threaded rod is rotatably connected between the opposite inner walls of the device cavity, a sleeve is connected onto the threaded rod in a threaded manner, the lower end of the sleeve is fixedly connected with a second ruler body, the end part of the second ruler body extends to the outside of the first ruler body, a first scale mark is arranged on the upper end surface of the second ruler body, a second scale mark is arranged on the upper end surface of the first ruler body, and a transmission cavity is formed in the wall body of the first ruler body. According to the ruler, the first ruler body, the second ruler body, the threaded rod, the transmission mechanism, the chalk insertion hole and the like are arranged, so that the functions of the ruler and the compasses are combined together when the ruler is used, auxiliary tools do not need to be frequently switched, the ruler is convenient and fast to use, the radius of a circle can be conveniently changed, the radius length cannot be changed in the drawing process, drawing is accurate, and the ruler is more convenient to use compared with the traditional compasses.

Description

A drawing auxiliary device for physical education

Technical Field

The utility model relates to the technical field of teaching equipment, in particular to a drawing auxiliary device for physical education.

Background

The drawing tool auxiliary device mainly refers to a tool for drawing geometric figures and engineering patterns. A wide variety of types are commonly used in mechanical mapping, physical education, and other engineering drawings. The following are commonly used in mechanical and other engineering drawings. Drawing board, T square, word chi, set-square, protractor, scale, drawing machine, curve board etc. draw a complicated figure and lead to the groove and need one or more instrument to assist, in physical education, need drawing regularly to make things convenient for the student to understand the study, therefore a good drawing appurtenance is indispensable.

When the existing physical teaching is used for drawing, compasses and a ruler are needed to be used for drawing circles and other linear graphs respectively, and a teacher needs to frequently switch auxiliary tools during use, so that the existing physical teaching is troublesome; meanwhile, when a circle is drawn, the distance between the fixed point and the moving point of the compasses is measured by the ruler to determine the length of the radius of the circle, and then the circle can be drawn. Therefore, there is a need to propose a drawing assistance device for physical education.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a drawing auxiliary device for physical education.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a drawing auxiliary device for physical education, includes the first chi body, set up the device chamber in the first chi body wall body, it is connected with the threaded rod to rotate between the relative inner wall in device chamber, threaded connection has the sleeve on the threaded rod, sleeve lower extreme fixedly connected with second chi body, second chi body tip extends to the external portion of first chi, second chi body upper end surface is provided with first scale mark, first chi body upper end surface is provided with the second scale mark, set up the transmission chamber in the first chi body wall body, install in the transmission chamber and be used for the transmission threaded rod pivoted drive mechanism, the chalk jack has been seted up to second chi body tip, install the clamping mechanism who is used for pressing from both sides tight chalk in the chalk jack.

Preferably, the transmission mechanism comprises a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear are respectively connected to the inner bottom and the inner side wall of the transmission cavity in a rotating mode, the second bevel gear is fixedly connected with the threaded rod in a coaxial mode, the first bevel gear is meshed with the second bevel gear, and a driving mechanism used for driving the first bevel gear to rotate is installed at the upper end of the first ruler body.

Preferably, the driving mechanism comprises a rocker, the rocker is rotatably connected to the upper end of the first ruler body, and the rocker is coaxially and fixedly connected with the first bevel gear.

Preferably, clamping mechanism includes arc clamping piece and connecting rod, and is a pair of arc clamping piece symmetry sets up in the chalk jack, and is a pair of the connecting rod respectively with a pair of arc clamping piece fixed connection, the connecting rod tip extends to the second chi external portion, the connecting rod tip with elastic connection has the spring between the second chi lateral wall.

Preferably, the lower end of the first ruler body is fixedly connected with a conical bulge at the middle position corresponding to the starting position of the first scale mark.

The utility model has the following beneficial effects:

through setting up the first chi body, the second chi body, the threaded rod, drive mechanism and chalk jack etc. the function with ruler and compasses combines together during the use, both can draw circularly, also can draw other sharp figures, need not frequently to switch appurtenance, it is comparatively convenient to use, only need rotate the rocker simultaneously and can adjust the length that the second chi body extends the first chi body, radius when in order to change the work circle, and drawing in-process radius length can not change, it is accurate to draw, and it is more convenient to use to compare in traditional compasses.

Drawings

Fig. 1 is a schematic structural view of a drawing assistance apparatus for physical education according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of a drawing assistance device for physical education according to the present invention in an extended state;

fig. 4 is a front view of a drawing assistance device for physical education according to the present invention;

fig. 5 is a back view of a drawing assistance device for physical education according to the present invention.

In the figure: 1. a first ruler body; 2. a device cavity; 3. a threaded rod; 4. a sleeve; 5. a second ruler body; 6. a transmission cavity; 7. a first bevel gear; 8. a second bevel gear; 9. a chalk insertion hole; 10. an arc-shaped clamping piece; 11. a connecting rod; 12. a spring; 13. a first scale mark; 14. a second scale mark; 15. a rocker; 16. a conical protrusion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, a drawing auxiliary device for physical education comprises a first ruler body 1, a device cavity 2 is formed in the wall body of the first ruler body 1, a threaded rod 3 is rotatably connected between the opposite inner walls of the device cavity 2, a sleeve 4 is in threaded connection with the threaded rod 3, a second ruler body 5 is fixedly connected to the lower end of the sleeve 4, the end of the second ruler body 5 extends to the outside of the first ruler body 1, a first scale mark 13 is arranged on the upper end surface of the second ruler body 5, a second scale mark 14 is arranged on the upper end surface of the first ruler body 1, and a transmission cavity 6 is formed in the wall body of the first ruler body 1.

Install in the transmission chamber 6 and be used for the 3 pivoted drive mechanism of transmission threaded rod, drive mechanism includes first bevel gear 7 and second bevel gear 8, and first bevel gear 7 and second bevel gear 8 rotate respectively and connect on transmission chamber 6 bottom and inside wall, and second bevel gear 8 and the coaxial fixed connection of threaded rod 3, and first bevel gear 7 meshes with second bevel gear 8 mutually, and the upper end of first chi body 1 is installed and is used for driving the pivoted actuating mechanism of first bevel gear 7.

The driving mechanism comprises a rocker 15, the rocker 15 is rotatably connected to the upper end of the first ruler body 1, and the rocker 15 is coaxially and fixedly connected with the first bevel gear 7.

The end part of the second ruler body 5 is provided with a chalk insertion hole 9, and a clamping mechanism for clamping chalk is installed in the chalk insertion hole 9.

The clamping mechanism comprises arc-shaped clamping pieces 10 and connecting rods 11, the arc-shaped clamping pieces 10 are symmetrically arranged in the chalk insertion holes 9, the connecting rods 11 are fixedly connected with the arc-shaped clamping pieces 10 respectively, the end parts of the connecting rods 11 extend to the outer part of the second ruler body 5, and springs 12 are elastically connected between the end parts of the connecting rods 11 and the side wall of the second ruler body 5.

The lower end of the first ruler body 1 is fixedly connected with a conical bulge 16 at the middle position corresponding to the starting position of the first scale mark 13.

When the device is used for drawing a linear graph, the device can be used as a conventional ruler; when the device is used for drawing a circle, the connecting rod 11 is pulled towards two sides firstly, so that the two arc-shaped clamping pieces 10 are opened, chalk is inserted into the chalk insertion hole 9, the connecting rod 11 is loosened, the arc-shaped clamping pieces 10 clamp the chalk tightly under the elastic force action of the spring 12, then the end part of the first ruler body 1 is pressed by one hand, a circular round point is determined and kept still by the conical bulge 16, and the end part of the second ruler body 5 is pushed by the other hand to rotate, so that the circle drawing can be completed.

When the overall length of the device needs to be changed, only the rocker 15 needs to be rotated, the rocker 15 drives the threaded rod 3 to rotate through the meshing action of the first bevel gear 7 and the second bevel gear 8, the threaded rod 3 drives the sleeve 4 and the second ruler body 5 to horizontally move, the length of the second ruler body 5 extending out of the first ruler body 1 is changed, and therefore the overall length of the device is adjusted, and circles with different radiuses and linear graphs with different sizes are conveniently drawn.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A drawing auxiliary device for physical education comprises a first ruler body (1) and is characterized in that a device cavity (2) is formed in the wall body of the first ruler body (1), a threaded rod (3) is rotatably connected between the inner walls of the device cavity (2) relatively, a sleeve (4) is in threaded connection with the threaded rod (3), a second ruler body (5) is fixedly connected with the lower end of the sleeve (4), the end part of the second ruler body (5) extends to the outside of the first ruler body (1), a first scale mark (13) is arranged on the upper end surface of the second ruler body (5), a second scale mark (14) is arranged on the upper end surface of the first ruler body (1), a transmission cavity (6) is formed in the wall body of the first ruler body (1), a transmission mechanism for transmitting the rotation of the threaded rod (3) is installed in the transmission cavity (6), a chalk insertion hole (9) is formed in the end part of the second ruler body (5), and a clamping mechanism for clamping the chalk is arranged in the chalk insertion hole (9).

2. The drawing auxiliary device for physical education as claimed in claim 1, wherein the transmission mechanism comprises a first bevel gear (7) and a second bevel gear (8), the first bevel gear (7) and the second bevel gear (8) are respectively connected on the bottom and the inner side wall in the transmission cavity (6) in a rotating way, the second bevel gear (8) is coaxially and fixedly connected with the threaded rod (3), the first bevel gear (7) and the second bevel gear (8) are meshed, and a driving mechanism for driving the first bevel gear (7) to rotate is installed at the upper end of the first ruler body (1).

3. A drawing aid device for physical education according to claim 2 characterized in that the driving mechanism comprises a rocking lever (15), the rocking lever (15) is rotatably connected on the upper end of the first ruler body (1), and the rocking lever (15) is coaxially and fixedly connected with the first bevel gear (7).

4. A drawing auxiliary device for physical education as claimed in claim 1, wherein the clamping mechanism includes a pair of arc-shaped clips (10) and a pair of connecting rods (11), a pair of the arc-shaped clips (10) are symmetrically arranged in the chalk insertion hole (9), a pair of the connecting rods (11) are respectively fixedly connected with the pair of the arc-shaped clips (10), the end of the connecting rod (11) extends to the outside of the second ruler body (5), and a spring (12) is elastically connected between the end of the connecting rod (11) and the side wall of the second ruler body (5).

5. A drawing aid device for physical education according to claim 1, characterised in that a conical projection (16) is fixedly connected to the lower end of the first ruler body (1) in a position corresponding to the middle of the beginning of the first graduation marks (13).