CN214928540U

CN214928540U - Multifunctional drawing rule for mathematical teaching

Info

Publication number: CN214928540U
Application number: CN202120800960.1U
Authority: CN
Inventors: 李东方; 胡梦薇; 刘会彩
Original assignee: Xuchang Electric Vocational College
Current assignee: Xuchang Electric Vocational College
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-30
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a multi-functional drawing rule that mathematics teaching was used, including the ruler, the lateral wall of ruler one end is provided with the lug, the axial is rotated on the lug and is provided with the swinging boom two, the spout one has been seted up on the ruler, be provided with the screw rod that one end runs through and extends to the ruler outside in the spout one, it is provided with the slider one to slide in the spout one, slider one cup joints on the screw rod, still include swinging boom one, the swinging boom one is provided with rotatable guide pillar on being close to the outer wall of slider one end, extension spring one has been cup jointed on the rotatable guide pillar, slider one passes through rotatable guide pillar with the swinging boom one and is connected, rotatable guide pillar has seted up the convex key on the outer wall for swinging boom one end, set up the draw-in groove that is the circumference and distributes on the slider one, the convex key cooperatees with locking swinging boom one with the draw-in groove. The utility model discloses a multi-functional drawing rule that mathematical education used, but through the swinging boom of locking angle, continue to draw the line segment of different angles to the function of drawing the circular arc has been increased.

Description

Multifunctional drawing rule for mathematical teaching

Technical Field

The utility model relates to a chi technical field is used in the drawing, specifically indicates a multi-functional drawing rule that mathematical education used.

Background

The ruler is also called measuring ruler and dividing ruler, and is a tool for drawing line segments and measuring length. The scale is usually graduated to measure length. Some rulers are provided with a hole in the middle in a special shape such as a letter or a circle, which is convenient for users to draw.

Mathematics is a general means for human beings to strictly describe the abstract structure and mode of things, can be applied to any problem in the real world, and all mathematical objects are artificially defined in nature. In this sense, mathematics belongs to formal science, not natural science.

In the elementary teaching process of mathematics, the teacher need draw different geometric figure according to the teaching demand of oneself in order to assist own teaching, makes the student understand the teaching content better. However, the existing teaching ruler only provides a straight line making function for a teacher, the teacher cannot make fixed-angle figures, such as common 30-degree angles and 60-degree angles, and the teacher needs to take compasses separately when drawing circles, which delays teaching time.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that prior art exists, an aspect of the utility model is to provide a multi-functional drawing rule that mathematics teaching was used, but through the swinging boom of locking angle, after drawing a line segment, can continue to draw the line segment of different angles, form manifold figure combination to increased the function of drawing the circular arc, further richened user's drawing means, saved mathematics mr's teaching time.

Technical scheme

In order to achieve the above purpose, the utility model provides a multifunctional drawing rule for mathematics teaching, which comprises a ruler, wherein a convex block is arranged on the side wall of one end of the ruler, a rotary arm II is axially and rotatably arranged on the convex block, a first chute is arranged on the ruler, a screw rod with one end penetrating and extending to the outer side of the ruler is arranged in the first chute, a first slider is slidably arranged in the first chute, the first slider is sleeved on the screw rod, the multifunctional drawing rule further comprises a first rotary arm, a rotatable guide pillar is arranged on the outer wall of the first rotary arm close to one end of the first slider, a first tension spring is sleeved on the rotatable guide pillar, the first slider is connected with the first rotary arm through the rotatable guide pillar, a convex key is arranged on the outer wall of one end of the rotatable guide pillar opposite to the first rotary arm, and clamping grooves distributed in a circumference are arranged on the first slider, the convex key is matched with the clamping groove to lock the rotating arm A.

Preferably, the bottom port department of the two rotary arms installs the pen holder, the pen holder includes shell, carousel and clamping piece, the shell specifically is hollow structure, the carousel axial rotate install in inside the shell, the clamping piece axial rotate install in on the carousel, and one end extends to the inboard of shell inner circle, be provided with the guide bar on the outer wall of shell, two of extension springs have been cup jointed on the guide bar, the guide bar run through in on the carousel, two of extension springs are assembled and are used for ordering about the shell is kept away from to the carousel.

Preferably, fixed mounting has the boss on the inner wall of shell, the quantity of boss is three, per two the spout two has been seted up between the boss, two slides on the spout two is provided with the slider two, be provided with the pressure spring on the two one side inner walls of spout, the other end of pressure spring is installed on the slider two, the pressure spring is used for driving two sliders are close to the boss.

Preferably, the outer wall of the ruler opposite to one end of the screw rod is axially provided with a positioning column in a rotating mode, and a magnet is installed at the top of the positioning column.

Preferably, the diagonal lines of the ruler are respectively and fixedly provided with a sucker, and the suckers are distributed opposite to the rotating arm I.

Preferably, the edge of the outer wall of the ruler is provided with scale marks.

Advantageous effects

Compared with the prior art, the utility model provides a pair of multi-functional drawing rule of mathematical education usefulness possesses following beneficial effect:

1. the utility model provides a multi-functional drawing rule that mathematical education used, through the cantilever structure that can lock, draw the line segment of different angles, through the cooperation between the line segment of different angles, form manifold figure combination, richen mathematics mr's drawing means.

2. The utility model provides a multi-functional drawing rule that mathematical education used has increased the function of drawing the circular arc, and the user need not use the compasses separately to draw circularly, when richening the drawing rule function, makes things convenient for mathematics mr's daily teaching.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

FIG. 1 is a schematic view of the contraction structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the screw structure of the present invention;

fig. 4 is a schematic view of the unfolding structure of the present invention;

fig. 5 is a schematic view of the back structure of the present invention.

The main reference numbers:

1. a straightedge; 2. a bump; 3. clamping a pen container; 4. a positioning column; 11. a screw; 12. a chute I; 13. a slider A; 14. a rotating arm I; 15. the guide post can be rotated; 16. a tension spring I; 17. a convex key; 18. a card slot; 19. scale lines; 21. a rotating arm II; 31. a housing; 32. a turntable; 33. a clip; 34. a boss; 35. a sliding block II; 36. a chute II; 37. a pressure spring; 41. a magnet; 311. a guide bar; 312. and a tension spring II.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

Referring to fig. 1-5, a multifunctional drawing ruler for mathematics teaching comprises a ruler 1, a convex block 2 is arranged on the side wall of one end of the ruler 1, a rotary arm two 21 is axially and rotatably arranged on the convex block 2, a first chute 12 is arranged on the ruler 1, a screw 11 with one end penetrating and extending to the outer side of the ruler 1 is arranged in the first chute 12, a first slider 13 is slidably arranged in the first chute 12, the first slider 13 is sleeved on the screw 11, the multifunctional drawing ruler further comprises a first rotary arm 14, a rotatable guide post 15 is arranged on the outer wall of the first rotary arm 14 close to one end of the first slider 13, a tension spring I16 is sleeved on the rotatable guide post 15, the first slider 13 is connected with the first rotary arm 14 through the rotatable guide post 15, the outer wall of one end, opposite to the first rotating arm 14, of the rotatable guide post 15 is provided with a convex key 17, the first slider 13 is provided with clamping grooves 18 which are distributed circumferentially, and the convex key 17 is matched with the clamping grooves 18 to lock the first rotating arm 14.

In the specific implementation process, a user stretches the first rotating arm 14 to enable the convex key 17 to be separated from the clamping groove 18, so that the locking state of the first rotating arm 14 is released, the first rotating arm 14 is retracted to lock the angle after the rotating angle is rotated, a multi-angle line segment can be made, and the user can make arcs with different radiuses by rotating the second rotating arm 21 after the ruler 1 is fixed.

As shown in fig. 4, in the further proposed technical solution of the present invention, the bottom port of the rotary arm two 21 is provided with a pen clip barrel 3, the pen clip barrel 3 includes a housing 31, a rotary disc 32 and a clamping piece 33, the housing 31 is specifically a hollow structure, the rotary disc 32 is axially rotated and installed inside the housing 31, the clamping piece 33 is axially rotated and installed on the rotary disc 32, one end of the clamping piece extends to the inner side of the inner ring of the housing 31, the outer wall of the housing 31 is provided with a guide rod 311, the guide rod 311 is sleeved with a tension spring two 312, the guide rod 311 runs through the rotary disc 32, and the tension spring two 312 is assembled to drive the rotary disc 32 to keep away from the housing 31.

In the specific implementation process, a user can adjust the extending length of the clamping piece 33 in the inner wall of the shell B31 by rotating the turntable 32 so as to fix the chalk, ensure that the rotating arm B21 can adapt to the chalks with different widths, and increase the practicability of the drawing ruler.

As shown in fig. 4, in the further proposed technical scheme of the utility model, fixed mounting has the boss 34 on the inner wall of shell 31, and the quantity of boss 34 is three, has seted up the two 36 of spout between per two boss 34, and the two 36 of spout is gone up the slip and is provided with the two 35 of slider, is provided with pressure spring 37 on the one side inner wall of the two 36 of spout, and the other end of pressure spring 37 is installed on the two 35 of slider, and pressure spring 37 is used for driving the two 35 of slider and is close to boss 34.

In the specific implementation process, a user clamps the chalk in a manner that the tension spring II 312 drives the rotating disc 32 to be away from the outer shell II 31, so that the stable lines can be drawn by the chalk, and the stability of drawing the arc of the drawing ruler is improved.

As shown in fig. 2, the utility model discloses in the further technical scheme that provides, axial rotation is provided with reference column 4 on the outer wall of the relative screw rod 11 one end of ruler 1, and magnetite 41 is installed at the top of reference column 4.

In the specific implementation process, the user utilizes the magnet 41 to adsorb the positioning column on the blackboard, fixes the bottom of the straight ruler 11, thereby taking the position of the magnet 41 as the center of a circle and taking the straight ruler 11 as the axis to rotate to form an arc, and ensuring the stability in circle drawing.

As shown in fig. 5, in the further proposed technical solution of the present invention, the diagonal lines of the ruler 1 are respectively and fixedly installed with the suction cups 5, and the suction cups 5 are distributed with the first rotating arm 14.

In the specific implementation process, the user utilizes sucking disc 5 to adsorb ruler 1 on the blackboard, guarantees ruler 1's stability to make stable line segment, make the drawing function more reliable and more stable.

As shown in fig. 2, the utility model further provides a technical solution in which the outer wall edge of the ruler 1 is provided with scale marks 19.

In the specific implementation process, a user can use the scale mark 19 to make line segments with different lengths according to requirements, and also can use the scale mark 19 to mark points with different distances on the made line segments so as to enrich the drawing mode of the user.

The working principle is as follows:

when a user draws a line segment, the user adsorbs the ruler 1 on the blackboard by using the sucker 5 to achieve a stable effect, then uses chalk to draw the line segment along the direction of the scale mark 19 to draw the stable line segment, when the line segment with multiple angles needs to be drawn, the first rotating arm 14 needs to be stretched firstly, the convex key 17 is separated from the clamping groove 18, the locking state of the first rotating arm 14 is released, and after the rotating angle is changed, the first rotating arm 14 is retracted to lock the angle, so that the line segment with multiple angles can be drawn;

when drawing an arc, a user utilizes the magnet 41 to adsorb the positioning column on the blackboard, fixes the bottom of the straight ruler 11, thereby rotating by taking the position of the magnet 41 as the center of a circle and the straight ruler 11 as an axis, and utilizing the pen clamping barrel 3 on the rotating arm 21 to clamp chalks to make arcs with different radiuses.

It will be appreciated by those skilled in the art that other similar connections may be used to implement the present invention. Such as welding, bonding, or screwing.

The above embodiments are merely exemplary embodiments of the present invention, which is not intended to limit the present invention, and the scope of the present invention is defined by the appended claims. Various modifications and equivalents may be made by those skilled in the art to the present invention without departing from the spirit and scope of the invention, and such modifications and equivalents should be considered to be within the scope of the invention.

Claims

1. The multifunctional drawing ruler for mathematics teaching is characterized by comprising a ruler (1), wherein a convex block (2) is arranged on the side wall of one end of the ruler (1), a rotating arm II (21) is axially and rotatably arranged on the convex block (2), a first sliding chute (12) is formed in the ruler (1), a screw rod (11) with one end penetrating through and extending to the outer side of the ruler (1) is arranged in the first sliding chute (12), a first sliding block (13) is slidably arranged in the first sliding chute (12), the first sliding block (13) is sleeved on the screw rod (11), the multifunctional drawing ruler further comprises a first rotating arm (14), a rotatable guide pillar (15) is arranged on the outer wall of one end, close to the first sliding block (13), of the first rotating arm (14), a tension spring (16) is sleeved on the rotatable guide pillar (15), and the first sliding block (13) is connected with the first rotating arm (14) through the rotatable guide pillar (15), the outer wall of one end, opposite to the first rotating arm (14), of the rotatable guide column (15) is provided with a convex key (17), the first slider (13) is provided with clamping grooves (18) which are distributed circumferentially, and the convex key (17) is matched with the clamping grooves (18) to lock the first rotating arm (14).

2. A multi-functional drawing rule for mathematics teaching according to claim 1, the pen clamping barrel (3) is arranged at the bottom port of the rotating arm (21), the pen clamping barrel (3) comprises a shell (31), a rotating disc (32) and a clamping piece (33), the shell (31) is of a hollow structure, the turntable (32) is axially and rotatably arranged inside the shell (31), the clamping pieces (33) are axially and rotatably arranged on the turntable (32), one end of the guide rod extends to the inner side of the inner ring of the shell (31), the outer wall of the shell (31) is provided with a guide rod (311), a tension spring II (312) is sleeved on the guide rod (311), the guide rod (311) penetrates through the turntable (32), the tension spring (312) is provided for urging the turntable (32) away from the housing (31).

3. The multifunctional drawing rule of mathematical education used according to claim 2, characterized in that, fixed mounting has boss (34) on the inner wall of shell (31), the quantity of boss (34) is three, per two the two (36) of spout has been seted up between boss (34), the two (35) of slider that slide on the two (36) of spout is provided with, be provided with pressure spring (37) on the one side inner wall of the two (36) of spout, the other end of pressure spring (37) is installed on the two (35) of slider, pressure spring (37) are used for driving the two (35) of slider are close to boss (34).

4. The multifunctional drawing rule for mathematics teaching as claimed in claim 1, characterized in that the straight rule (1) is provided with a positioning column (4) axially and rotatably on the outer wall of one end of the screw rod (11), and a magnet (41) is arranged on the top of the positioning column (4).

5. A multifunctional drawing rule for mathematics teaching as claimed in claim 1, wherein the diagonals of the straight rule (1) are respectively fixedly provided with a suction cup (5), and the suction cups (5) are distributed opposite to the first rotating arm (14).

6. A multi-functional drawing rule for mathematics teaching according to claim 1 characterized in that the outer wall edge of the straight ruler (1) is provided with graduation marks (19).