CN219505739U

CN219505739U - Special ruler for drawing light refraction

Info

Publication number: CN219505739U
Application number: CN202320425688.2U
Authority: CN
Inventors: 薛鸣
Original assignee: Xiangyang Fifth Middle School Affiliated Junior High School
Current assignee: Xiangyang Fifth Middle School Affiliated Junior High School
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-11
Anticipated expiration: 2033-03-07

Abstract

The utility model discloses a special ruler for light refraction drawing, which comprises a left ruler plate, a right ruler plate, a finger pinching frame, a thumb spanner, a rotating shaft, a torsion spring and a reference pointer. The utility model has reasonable design, has the structure function of flexibly adjusting the drawing line, can draw lines in different directions at the position under simple operation, is beneficial to measuring the incidence angle and the refraction angle of light at the position by the scale marks of the protractor arranged on the peripheral surface of the joint of the other end of the rotating shaft and the right ruler plate and under the indication of the reference pointer, solves the problem of complicated operation and adjustment of the traditional ruler for mapping the light refraction image for multiple times, and provides a more convenient physical line drawing tool for teachers and students.

Description

Special ruler for drawing light refraction

Technical Field

The utility model relates to the field of teaching aids, in particular to a special ruler for drawing light refraction.

Background

The teaching aid is a real object for the purposes of propagation science and technology and education, is a complete science and technology media, and is an indispensable device in teenager science and technology activities.

In teaching many teaching aids, a ruler for drawing lines is most common, has a single structure function, and is used for drawing lines in different directions by replacing the line drawing positions for many times, so that the traditional ruler is not suitable for physical optical light refraction or multi-beam light refraction line drawing. Therefore, a special ruler for light refraction drawing is proposed for the above problems.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a special ruler for light refraction drawing.

The special ruler for light refraction drawing comprises a left ruler plate, a right ruler plate, a finger pinching frame, a thumb spanner rod, a rotating shaft, a torsion spring and a reference pointer, wherein the end face of one end of the left ruler plate is provided with a protruding block, the back face of the protruding block is rotationally connected with the inner side of one end of the right ruler plate through the rotating shaft, the torsion spring is sleeved on the rotating shaft part positioned in the circular groove, one end of the rotating shaft is provided with one end of the thumb spanner rod, the surrounding surface of the joint of the other end of the rotating shaft and the right ruler plate is provided with a protractor scale mark, the reference pointer is arranged on the side wall of the top of the protruding block, and the finger pinching frame is arranged on one side of the surface of the left ruler plate.

Further, the round groove is formed in the front surface of the protruding block, and the notch of the round groove exceeds one end with the rotating shaft.

Further, one end of the torsion spring is connected with the inner wall of the circular groove, and the other end of the torsion spring is connected with the corresponding part of the rotating shaft.

Further, one end of the right ruler plate is an inclined end face, and the inclined end face is in mutual matching contact with an inclined face positioned at the rear side of one end face of the left ruler plate.

Further, the reference pointer initially points to a "0" scale on the protractor scale mark.

Further, the size scale mark on the left ruler plate and the scale mark on the right ruler plate form a complete length measurement scale mark, and a magnet is arranged inside the back of the left ruler plate.

The beneficial effects of the utility model are as follows: possess nimble structural function who adjusts the setting-out, the line on the different directions of drawing department under the simple operation, through the protractor scale mark that sets up at the pivot other end and right chi board junction surrounding surface just under the reference pointer instruction, be favorable to measuring incidence angle and the refraction angle of department light, solve traditional ruler survey and drawing light refraction diagram multiple operation adjustment loaded down with trivial details problem, provide a more convenient physics drawing instrument for teachers and students.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a side view of the overall structure of the present utility model;

FIG. 2 is a view showing the use state of the whole structure of the present utility model;

fig. 3 is a top view of the overall structure of the present utility model.

In the figure: 1. a left ruler plate; 11. a bump; 12. a circular groove; 13. an inclined plane; 2. a right ruler plate; 21. a protractor scale mark; 3. pinching the frame with fingers; 4. a thumb spanner; 5. a rotating shaft; 6. a torsion spring; 7. reference is made to a pointer.

Detailed Description

In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, a special ruler for light refraction drawing comprises a left ruler plate 1, a right ruler plate 2, a finger pinching frame 3, a thumb spanner 4, a rotating shaft 5, a torsion spring 6 and a reference pointer 7, wherein a lug 11 is arranged on one end face of the left ruler plate 1, the back face of the lug 11 is rotationally connected with the inner side of one end of the right ruler plate 2 through the rotating shaft 5, the torsion spring 6 is sleeved on a rotating shaft 5 part positioned in a circular groove 12, one end of the rotating shaft 5 is provided with one end of the thumb spanner 4, a protractor scale mark 21 is arranged on the surrounding surface of the joint of the other end of the rotating shaft 5 and the right ruler plate 2, the reference pointer 7 is arranged on the side wall of the top of the lug 11, and the finger pinching frame 3 is arranged on one side of the surface of the left ruler plate 1.

The circular groove 12 is formed in the front surface of the protruding block 11, and the notch of the circular groove 12 exceeds one end with the rotating shaft 5; one end of the torsion spring 6 is connected with the inner wall of the circular groove 12, and the other end of the torsion spring 6 is connected with the corresponding part of the rotating shaft 5; one end of the right ruler plate 2 is an inclined end face, and the inclined end face is in mutual matching contact with an inclined face 13 positioned at the rear side of one end face of the left ruler plate 1; the reference pointer 7 is initially pointed on the "0" scale of the protractor scale mark 21; the size scale mark on the left ruler plate 1 and the scale mark on the right ruler plate 2 form a complete length measurement scale mark, and a magnet is arranged inside the back of the left ruler plate 1.

When the utility model is used, a user places the left hand four fingers in the finger pinching frame 3 to pinch, meanwhile, the left hand thumb is placed on the thumb pulling rod 4, at this time, the user places the left ruler plate 1 on a blackboard or paper, then uses chalk or a fountain pen and the like to draw lines along the straight lines of the left ruler plate 1 and the right ruler plate 2 to obtain horizontal lines, keeps the left ruler plate 1 motionless, bends the thumb inwards to drive the thumb pulling rod 4 and the connected rotating shaft 5 to rotate clockwise for 30 degrees for one time and not move, draws incident light at the right ruler plate 2 on the upper side of the horizontal lines and slides down for dotted lines, after the drawing is finished, draws refraction light at the right ruler plate 2 on the lower side of the horizontal lines for 5 degrees for one time, has the structural function of flexibly adjusting the drawing lines in different directions, and is beneficial to measuring angles and refraction angles of the traditional refraction tool, and provides more convenient and more physical adjustment for the linear drawing of the straight lines by the angle of the angle gauge 21 arranged at the other end of the rotating shaft 5 and the connecting position of the right ruler plate 2.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A special ruler for light refraction drawing is characterized in that: including left chi board (1), right chi board (2), finger pinch frame (3), thumb pull rod (4), pivot (5), torsion spring (6) and reference pointer (7), left chi board (1) one end terminal surface is provided with lug (11), and the lug (11) back is connected through pivot (5) and inboard rotation of right chi board (2) one end, torsion spring (6) suit is located pivot (5) part in circular slot (12), and thumb pull rod (4) one end is installed to pivot (5) one end, pivot (5) other end and right chi board (2) junction surrounding surface are provided with protractor scale mark (21), reference pointer (7) are installed on lug (11) top lateral wall, finger pinch frame (3) are installed in left chi board (1) surface one side.

2. A special ruler for photorefractive rendering according to claim 1, wherein: the round groove (12) is arranged on the front surface of the protruding block (11), and the notch of the round groove (12) exceeds one end with the rotating shaft (5).

3. A special ruler for photorefractive rendering according to claim 1, wherein: one end of the torsion spring (6) is connected with the inner wall of the circular groove (12), and the other end of the torsion spring (6) is connected with the corresponding part of the rotating shaft (5).

4. A special ruler for photorefractive rendering according to claim 1, wherein: one end of the right ruler plate (2) is an inclined end face, and the inclined end face is in mutual matching contact with an inclined face (13) positioned at the rear side of one end face of the left ruler plate (1).

5. A special ruler for photorefractive rendering according to claim 1, wherein: the reference pointer (7) is initially pointed on the "0" scale of the protractor scale mark (21).

6. A special ruler for photorefractive rendering according to claim 1, wherein: the scale marks on the left ruler plate (1) and the right ruler plate (2) form a complete length measurement scale mark, and a magnet is arranged inside the back of the left ruler plate (1).