CN201556319U

CN201556319U - Assembled solid geometry demonstration teaching aid

Info

Publication number: CN201556319U
Application number: CN2009200251470U
Authority: CN
Inventors: 邹庆平; 张海燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-15
Filing date: 2009-05-15
Publication date: 2010-08-18
Anticipated expiration: 2019-05-15

Abstract

The utility model discloses an assembled solid geometry demonstration teaching aid which comprises bar bodies (1), a quadrilateral rubber surface (3), a triangular rubber surface (5), a rubber line (4) and a flexible three-way connector (2), and is characterized in that the bar body (1) is provided with holes (6) in rows and at equal intervals; the connecting pipes of the flexible three-way connector (2) are also provided with holes at equal intervals; and ends of adjacent rod bodies (1) are inserted into different connecting pipes of the flexible three-way connector (2). The assembled solid geometry demonstration teaching aid has simple structure, easy assembly of multiple solid geometry shapes and convenient carrying, is more beneficial to solid geometry teaching demonstration, and can improve the teaching effect.

Description

Assembly type solid geometry demonstration teaching aid

Technical field

The utility model relates to a kind of improvement of solid geometry teaching demonstration teaching aid, specifically a kind of assembly type solid geometry demonstration teaching aid.

Background technology

At present; the teaching aid that is used for solid geometry teaching; adopt wooden model or plastic pattern mostly; a kind of solid need be made a model; have several solids just to make several models, two or three iron staffs of section employing of solid are connected to form how much integral body, when explanation solid cross section; take away the part of solid, expose the cross section.These solid geometry teaching aids have play a part certain in teaching, but also come with some shortcomings: the one, and in when teaching, it is more that the teacher brings the model quantity in classroom at every turn on class, and volume is bigger, is not easy to carry; The 2nd, the cross section of model has only one or two, can't show the cross sectional shape of solid different parts flexibly; The 3rd, a kind of model can only show a kind of geometric configuration, can not freely form new model or cross section between the model component; The 4th, these models are solid model, can't show the solid geometry wire-frame model.

Summary of the invention

The purpose of this utility model is to provide the less ingredient of a kind of employing can constitute multiple solid geometry shape or cross sectional shape, carry, use all more convenient, be convenient to assemble at any time according to the content of courses, can show wire-frame model, assembly type solid geometry demonstration teaching aid that again can the display entity model.

For reaching above purpose, the technical scheme that the utility model adopted is: this assembly type solid geometry demonstration teaching aid, constitute by the body of rod, quadrilateral rubber face, triangle rubber face, rubber covered wire and threeway active joint, it is characterized in that on the body of rod, being provided with aperture in a row and that spacing equates, in the adapter of threeway active joint, also establish the aperture that spacing equates, insert in the different adapter of same threeway active joint the termination of the adjacent body of rod, be combined into the solid geometric pattern framework, this combination can be according to the assembling of teaching needs.The utility model is also implemented by following measure: the described body of rod is established the 12-16 root, is the duroplasts rod, and the diameter of the body of rod is 5mm, and the aperture pitch on the body of rod is 20mm, and the aperture of aperture is 2mm; Described quadrilateral rubber face and triangle rubber face can be established 6-16, make with the high-quality natural rubber, has stronger elasticity, on each angle of quadrilateral rubber face and triangle rubber face, be equipped with little hook, for a short time in the aperture in the aperture that is hooked on the body of rod at each angle or the adapter of threeway active joint, constitute the cross section or the surface of solid geometric pattern; Described rubber covered wire is established the 6-8 root, is bungee, and little hook is established at two ends, is used to show the diagonal line of solid geometric pattern; Described threeway active joint is established 8-20, is made of three adapters and a spheric seat, equidistantly on spheric seat establishes three semisphere caves, and the bulb of three adapters is stuck in the corresponding semisphere cave.

The beneficial effects of the utility model are: compare with the solid geometry demonstration teaching aid of present use, and simple in structure, be assembled into multiple solid geometry shape easily, and be easy to carry, more help the solid geometry teaching demonstration, can improve teaching efficiency.

Description of drawings

Assembled embodiment master when Fig. 1 is square for the utility model looks synoptic diagram.

Fig. 2 is a threeway active joint structure enlarged diagram of the present utility model.

Fig. 3 is the spheric seat structure enlarged diagram of the utility model threeway active joint.

Fig. 4 is the utility model body of rod structure schematic top plan view.

Fig. 5 is the utility model quadrilateral rubber face structure schematic top plan view.

Fig. 6 is the utility model triangle rubber face structure schematic top plan view.

Embodiment

Make the utility model with reference to accompanying

drawing

1,2,3,4,5,6.This assembly type solid geometry demonstration teaching aid, constitute by the body of rod 1, quadrilateral rubber face 3, triangle rubber face 5, rubber covered wire 4 and threeway active joint 2, it is characterized in that on the body of rod 1, being provided with aperture 6 in a row and that spacing equates, on the adapter 2a of threeway active joint 2, also establish the aperture that spacing equates, insert in the different adapter 2a of same threeway active joint 2 termination of the adjacent body of rod 1, be combined into the solid geometric pattern framework, this geometric model framework can be square, cone etc., assembles according to the teaching needs.The described body of rod 1 is established the 12-16 root, is the duroplasts rod, and the diameter of the body of rod 1 is 5mm, and aperture 6 spacings on the body of rod 1 are 20mm, and the aperture of aperture 6 is 2mm; Described quadrilateral rubber face 3 and triangle rubber face 5 can be established 6-16, make with the high-quality natural rubber, has stronger elasticity, on each angle of quadrilateral rubber face 3 and triangle rubber face 5, be equipped with little hook, for a short time in the aperture that is hooked on the body of rod 16 at each angle or the adapter of threeway active joint 2, constitute the cross section or the surface of solid geometric pattern; Described rubber covered wire 4 is established the 6-8 root, is bungee, and little hook is established at two ends, is used to show the diagonal line of solid geometric pattern; Described threeway active joint 2 is established 8-20, takes over 2a and a spheric seat 2b constitutes by three, equidistantly on spheric seat 2b establishes three semisphere cave 2c, and three bulbs of taking over 2a are stuck in the corresponding semisphere cave 2c.

Claims

1. assembly type solid geometry demonstration teaching aid, constitute by the body of rod (1), quadrilateral rubber face (3), triangle rubber face (5), rubber covered wire (4) and threeway active joint (2), it is characterized in that on the body of rod (1), being provided with aperture (6) in a row and that spacing equates, also establish the aperture that spacing equates in the adapter of threeway active joint (2), insert in the different adapter of same threeway active joint (2) termination of the adjacent body of rod (1).

2. assembly type solid geometry demonstration teaching aid according to claim 1 is characterized in that the described body of rod (1) establishes the 12-16 root, and the diameter of the body of rod (1) is 5mm, and aperture (6) spacing on the body of rod (1) is 20mm, and the aperture of aperture (6) is 2mm; Be equipped with little hook on each angle of described quadrilateral rubber face (3) and triangle rubber face (5); Little hook is also established at the two ends of described rubber covered wire (4); Described threeway active joint (2) is established 8-20, constitute by three adapters (2a) and a spheric seat (2b), go up equidistant three the semisphere caves (2c) of establishing at spheric seat (2b), the bulb of three adapters (2a) is stuck in the corresponding semisphere cave (2c).