CN213676151U

CN213676151U - A combination formula instrument of drawing for mathematical education

Info

Publication number: CN213676151U
Application number: CN202022736858.8U
Authority: CN
Inventors: 丁艳梅
Original assignee: Shandong Vocational College of Industry
Current assignee: Shandong Vocational College of Industry
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-13
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a combination formula instrument of drawing for mathematical education, including the set-square, the lateral wall fixedly connected with frame of set-square, the inner chamber of frame is equipped with the protractor, and the lateral wall of protractor is equipped with semicircular frame. The utility model discloses a set up a combination formula instrument of drawing for mathematical education, through semi-circular frame's use, the nib can see through semi-circular frame, can with the paper laminating, directly can carry out the punctuation to the angle, improves the efficiency of drawing, more convenient when drawing the figure of different angles, the process of drawing is more simple and convenient, can make up the use simultaneously.

Description

A combination formula instrument of drawing for mathematical education

Technical Field

The utility model relates to a mathematical education technical field specifically is a combination formula drawing instrument for mathematical education.

Background

At present in middle school's mathematical education, because the needs of teaching, the mr needs often to draw on the blackboard, and instrument commonly used such as set-square can be used for drawing triangle-shaped, can draw angle, angulation, draw perpendicular line, parallel lines, survey inclination, straightness, levelness through the protractor, and although some structures that have now can make up, nevertheless do not conveniently draw the figure of different angles, have some inconveniences, therefore we propose a combination formula instrument of drawing that is used for mathematical education.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combination formula drawing instrument for mathematical education to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a combination formula instrument of drawing for mathematical education, includes the set-square, the lateral wall fixedly connected with frame of set-square, the inner chamber of frame is equipped with the protractor, the lateral wall of protractor is equipped with semicircular frame.

Preferably, the front side wall of the frame is symmetrically and fixedly connected with a stop block, and the rear side wall of the stop block is attached to the protractor.

Preferably, a graduated scale is fixedly connected to the top side wall of the triangular plate.

Preferably, the front side wall of the triangle is fixedly connected with a handle.

Preferably, the outer side wall of the handle is provided with a rubber sleeve.

Preferably, the lateral wall fixedly connected with concave piece of set-square, the inner chamber of concave piece is equipped with the ball, the preceding lateral wall fixedly connected with concave board of concave piece, the back lateral wall and the ball of concave board are laminated mutually.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up a combination formula instrument of drawing for mathematical education, place the protractor at the frame inner chamber earlier when using, carry on spacingly through the frame to the protractor, can fix the protractor in set-square center department, through semi-circular frame's use, the nib can see through semi-circular frame, can with the paper laminating, directly can carry out the punctuation to the angle, improve the efficiency of drawing, it is more convenient when drawing the figure of different angles, the process of drawing is more simple and convenient, can make up the use simultaneously.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a detailed view of the frame of the present invention.

In the figure: 1. the novel ruler comprises a set square, 2, a frame, 3, a protractor, 4, a semicircular frame, 5, a stop block, 6, a graduated scale, 7, a handle, 8, a rubber sleeve, 9, a concave block, 10, a ball, 11 and a concave plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a combination formula instrument of drawing for mathematical education, including set-square 1, set-square 1's lateral wall fixedly connected with frame 2, the inner chamber of frame 2 is equipped with protractor 3, protractor 3's lateral wall is equipped with semi-circular frame 4, place protractor 3 at frame 2 inner chamber earlier when using, carry on spacingly to protractor 3 through frame 2, can fix protractor 3 in set-square 1 center department, use through semi-circular frame 4, can see through semi-circular frame 4, can with the laminating of paper, the nib directly can carry out the punctuation to the angle, the efficiency of drawing is improved.

Specifically, the front side wall of the frame 2 is symmetrically and fixedly connected with the stop block 5, the rear side wall of the stop block 5 is attached to the protractor 3, the stop block 5 can be limited, and the assembly of the protractor 3 is more stable, so that the installation of the protractor 3 is more stable.

Particularly, the top lateral wall fixedly connected with scale 6 of set square 1, through the use of scale 6, length is more accurate at the in-process of drawing, improves drawing efficiency.

Specifically, the handle 7 is fixedly connected to the front side wall of the triangle 1, and the force bearing points are increased through the handle 7, so that the triangle 1 can be moved more conveniently.

Specifically, the outer side wall of the handle 7 is fitted with a rubber sleeve 8, and friction force can be increased by the rubber sleeve 8, so that pulling is facilitated when the handle 7 is moved.

Particularly, the concave piece 9 of lateral wall fixedly connected with of set-square 1, the inner chamber of concave piece 9 is equipped with ball 10, and the preceding lateral wall fixedly connected with concave board 11 of concave piece 9, the back lateral wall and the ball 10 of concave board 11 laminate mutually, and ball 10 can rotate at concave piece 9 inner chamber, laminates with concave board 11 simultaneously, and is more smooth when pulling set-square 1, wearing and tearing paper when avoiding set-square 1 to remove.

The working principle is as follows: place protractor 3 in 2 inner chambers of frame earlier when using, carry on spacingly to protractor 3 through frame 2, can fix protractor 3 in set-square 1 center department, through semicircle frame 4's use, the nib can see through semicircle frame 4, can with the paper laminating, directly can carry out the punctuation to the angle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A combination drawing instrument for mathematical education, includes set square (1), its characterized in that: the side wall of set square (1) fixedly connected with frame (2), the inner chamber of frame (2) is equipped with protractor (3), the lateral wall of protractor (3) is equipped with semicircle frame (4).

2. A combined drawing tool for mathematical education as claimed in claim 1, characterized in that: the front side wall of the frame (2) is symmetrically and fixedly connected with a stop block (5), and the rear side wall of the stop block (5) is attached to the protractor (3).

3. A combined drawing tool for mathematical education as claimed in claim 1, characterized in that: and the top side wall of the triangular plate (1) is fixedly connected with a graduated scale (6).

4. A combined drawing tool for mathematical education as claimed in claim 1, characterized in that: the front side wall of the triangle (1) is fixedly connected with a handle (7).

5. A combined drawing tool for mathematical education as claimed in claim 4, wherein: the outer side wall of the handle (7) is provided with a rubber sleeve (8).

6. A combined drawing tool for mathematical education as claimed in claim 1, characterized in that: the side wall fixedly connected with concave block (9) of set-square (1), the inner chamber of concave block (9) is equipped with ball (10), preceding lateral wall fixedly connected with concave plate (11) of concave block (9), the back lateral wall and the ball (10) of concave plate (11) are laminated mutually.