CN210271399U

CN210271399U - University's mathematics curved surface demonstrates teaching aid

Info

Publication number: CN210271399U
Application number: CN201921232023.XU
Authority: CN
Inventors: 杜腾奇
Original assignee: Jiangxi College of Engineering
Current assignee: Jiangxi College of Engineering
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-07
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a demonstration teaching aid belonging to the technical field of teaching equipment and specifically relating to a university mathematics curved surface, which comprises a curved body, a support rod and a base, wherein the support rod is arranged at the middle bottom of the curved body, the bottom of the support rod is fixedly arranged at the top of the base, two end faces of the curved body are in a circular arc concave structure, the bearing is fixedly arranged at the middle of the curved body, the bearing inner wall is fixedly arranged at the top of the support rod, and a non-slip mat is fixedly arranged at the bottom of the base, the utility model has scientific and reasonable structural design, the support rod has a support effect on the curved body, so as to facilitate the rotation and viewing of students, the base is made of metal materials, the gravity center of the device is moved downwards, the curved body is prevented from inclining in the using process, the support rod is in threaded connection with, convenient dismantlement has improved learning efficiency.

Description

University's mathematics curved surface demonstrates teaching aid

Technical Field

The utility model relates to a teaching equipment technical field specifically is university's mathematics curved surface demonstration teaching aid.

Background

In space, a curved surface generated by one curve rotating around a fixed straight line for a circle is called a rotating curved surface or a revolution curved surface, the curve is called a generatrix of the rotating curved surface, the fixed straight line is called a rotating shaft of the rotating curved surface, the fixed straight line is called an axis for short, the track of any point on the generatrix rotating around the rotating shaft is a circle, called a latitude circle or a latitude line of the rotating curved surface, the intersecting line of a semi-plane taking the rotating shaft as a boundary and the rotating curved surface is called a longitude line of the rotating curved surface, the rotating curved surface is a curved surface formed by one plane curve rotating around a straight line on the plane of the plane, called the rotating curved surface, the rotating curved surface is a more complicated part in college space analytic geometry, because no visual teaching demonstration model exists, the teaching process is difficult to fully understand, the teaching process is very difficult, the existing rotating curved surface demonstration teaching aid, there is no substantive model for explanation and demonstration, and for this reason, we propose college mathematics curved surface demonstration teaching aid.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the above-mentioned and/or the problem that exists among the current college mathematics curved surface demonstration teaching aid, provided the utility model discloses.

Therefore, the utility model aims at providing a university's mathematics curved surface demonstrates teaching aid, the rotating surface that can solve the aforesaid and propose is the more complicated partly in the analytic geometry of university space, because there is not visual teaching demonstration model, hardly fully understands, this brings very big teaching aid to the teaching process, and present rotating surface demonstrates only makes things convenient for the student to observe and the understanding of thinking by oneself from four directions all around, does not have the problem that substantive model explains and demonstrates.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

university's mathematics curved surface demonstration teaching aid, it includes: the support rod is arranged at the bottom in the middle of the curved body, and the bottom of the support rod is fixedly installed at the top of the base.

As university's mathematics curved surface demonstration teaching aid an preferred scheme, wherein: two end faces of the curved surface body are of arc concave structures.

As university's mathematics curved surface demonstration teaching aid an preferred scheme, wherein: and a bearing is fixedly arranged in the middle of the curved surface body, and the top of the support rod is fixedly arranged on the inner wall of the bearing.

As university's mathematics curved surface demonstration teaching aid an preferred scheme, wherein: and the bottom of the base is fixedly provided with an anti-skid pad.

Compared with the prior art: the university mathematics curved surface demonstration teaching aid adopts a curved surface body as a demonstration model, the curved surface body is a ring formed by twisting two groups of straight plates by 180 degrees and then bonding two ends of the straight plates, a common plate is provided with two surfaces (namely two-side curved surfaces), the ring in such a shape is only one surface, namely a single-side curved surface, the curved surface body can be subjected to curved surface calculation by a parameter equation of university, the curved surface body is a two-dimensional compact manifold which can be embedded into a three-dimensional or higher-dimensional manifold and is an unoriented standard example, the curved surface body has a demonstration effect on the subject of the university mathematics curved surface, a support rod and a bearing are arranged at the bottom of the curved surface body, the bearing has a rotating effect on the curved surface body, the support rod has a supporting effect on the curved surface body and is convenient for students to rotate and watch, a base is made of metal materials and moves the gravity center of the device downwards to prevent the, bracing piece bottom threaded connection base top, bracing piece top joint bearing inner wall, bearing joint curved surface body inner wall, this device simple structure, the convenient dismantlement has improved learning efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

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

fig. 2 is a top view of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a right side view of the present invention.

In the figure, 100 curved bodies, 200 supporting rods, 210 bearings, 300 bases and 310 non-slip mats.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a university mathematics curved surface demonstration teaching aid, which has the advantages of simple structure and convenient disassembly, please refer to fig. 1, and comprises a curved surface body 100, a support rod 200 and a base 300;

referring to fig. 1, 2 and 3, a support rod 200 is disposed at the middle bottom of a curved body 100, the bottom of the support rod 200 is fixedly installed at the top of a base 300, two end surfaces of the curved body 100 are arc-shaped concave structures, the curved body 100 is a ring formed by twisting a straight plate by two groups of 180 degrees and then bonding two ends of the straight plate, a common plate has two surfaces (i.e. two-sided curved surfaces), a front surface and a back surface, the two surfaces can be coated with different colors, the ring in such a shape has only one surface, i.e. a single-sided curved surface, the curved body 100 can be curved by using a mathematical parameter equation, the curved body 100 is a two-dimensional compact manifold which can be embedded into a three-dimensional or higher-dimensional manifold, and is a non-orientable standard example, which can be regarded as # RP, and is also one of examples of mathematically describing fiber bundles, in particular, it has a fiber unit interval, the curved body 100 has a demonstration effect on the subject of the university mathematical curved surface, I being a non-trivial cluster on the circle S of [0,1 ].

The curved body 100 is made of an environmentally friendly plastic material.

When specifically using, the technical personnel in the art with bracing piece 200 threaded connection at base 300 top, with bearing 210 joint in the middle of curved body 100, with bracing piece 200 top joint in the middle of bearing 210, this device of installation place on the show stand have the student mr to explain curved body 100's curved surface can.

In order to make this device make things convenient for the student to watch when using, bottom erection bracing pole 200 in the middle of curved body 100, specifically, joint bearing 210 in the middle of the curved body 100, bearing 210 inner wall joint bracing piece 200 top, bracing piece 200 adopts metal material to make, and bracing piece 200 has the supporting role to curved body 100, raises the convenience student with curved body 100 and watches, and bearing 210 has rotatory effect to curved body 100.

Referring to fig. 3 and 4, in order to prevent the base 300 from sliding, a non-slip mat 310 is fixedly installed at the bottom of the base 300, specifically, the base 300 is made of a metal material, the center of the device is moved down to prevent the curved body 100 from tilting during use, the top of the non-slip mat 310 is adhered to the bottom of the base 300, and the non-slip mat 310 is made of PVC soft rubber and made of polyvinyl chloride, and has a non-slip function on the base 300.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. University's mathematics curved surface demonstration teaching aid, its characterized in that, including curved surface body (100), bracing piece (200), base (300), the bottom is equipped with in the middle of curved surface body (100) bracing piece (200), bracing piece (200) bottom fixed mounting be in base (300) top.

2. A university mathematics curved surface demonstration teaching aid according to claim 1, characterized in that, the two end surfaces of the curved surface body (100) are arc concave structures.

3. The university mathematics curved surface demonstration teaching aid of claim 1, characterized in that, the bearing (210) is fixedly installed in the middle of the curved surface body (100), the top of the support rod (200) is fixedly installed on the inner wall of the bearing (210).

4. A university mathematics curved surface demonstration teaching aid according to claim 1, wherein the bottom of the base (300) is fixedly provided with a non-slip mat (310).