CN203366600U - Multifunctional curved surface demonstration teaching aid special for advanced mathematics - Google Patents
Multifunctional curved surface demonstration teaching aid special for advanced mathematics Download PDFInfo
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- CN203366600U CN203366600U CN 201320441300 CN201320441300U CN203366600U CN 203366600 U CN203366600 U CN 203366600U CN 201320441300 CN201320441300 CN 201320441300 CN 201320441300 U CN201320441300 U CN 201320441300U CN 203366600 U CN203366600 U CN 203366600U
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- teaching aid
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- screw rod
- circular ring
- disc
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Abstract
A multifunctional curved surface demonstration teaching aid special for advanced mathematics relates to a multifunctional curved surface demonstration teaching aid. The teaching aid is for solving the problem that there is no teaching aid about ellipsoid or elliptic paraboloid in the prior art, which is inconvenient for explaining the knowledge of ellipsoid and elliptic paraboloid. The teaching aid comprises a base disc (1), a compression disc (2), a screw rod (3), a nut (4), a first circular ring (5), and a second circular ring (6). The compression disc (2) and the base disc (1) are parallelly arranged, while the compression disc (2) is above the base disc (1). The screw rod (3) vertically passes through the center of the compression disc (2) and the base disc (1). The first circular ring (5) and the second circular ring (6) can be rotatably and crossly arranged on the screw rod (3) which is at the center of the compression disc (2) and the base disc (1). The nut (4) is screwed on the screw rod (3) on the top end of the compression disc (2). The first circular ring (5) and the second circular ring (6) are of the same structure. The teaching aid is suitable for a teaching process of advanced mathematics.
Description
Technical field
The utility model relates to a kind of curved surface demonstration teaching aid, is specifically related to a kind of multifunctional curved demonstration teaching aid of higher mathematics special use, belongs to the teaching aid field.
Background technology
Curved surface is a moving-wire, under given condition, at the track of space continuous motion.Quadric surface has nine kinds, suitably chooses rectangular coordinate system in space, can obtain their standard equation, wherein ellipsoid and elliptic paraboloid are in teaching process, also there is no special-purpose teaching aid, and this part knowledge is very abstract, has brought inconvenience therefore to the explanation of this part knowledge.
The utility model content
The purpose of this utility model is there is no the teaching aid about ellipsoid and elliptic paraboloid in order to solve in existing teaching aid, has brought inconvenient problem to the explanation of this part knowledge, and then a kind of multifunctional curved demonstration teaching aid of higher mathematics special use is provided.
The technical solution of the utility model is: the multifunctional curved demonstration teaching aid of higher mathematics special use comprises chassis, compact disk, screw rod, nut, the first annulus and the second annulus, compact disk and chassis be arranged in parallel up and down, screw rod vertically is located in the middle part on compact disk and chassis, on the first annulus and the second annulus screw rod in the middle of compact disk and chassis rotatable arranged in a crossed manner, nut driving is on the screw rod of compact disk upper end, and described the first annulus is identical with the structure of the second annulus.
Described the first annulus comprises upper semi-circle and lower half circle, and upper semi-circle and lower half circle are symmetrical arranged, and removably connects between upper semi-circle and lower half circle.
Described the first annulus is elastic circular ring.
The utility model compared with prior art has following effect:
Of the present utility model multi-functional be to embody like this:
1) ellipsoid, the utility model unused state is sphere, by screwing nut downwards, nut is to downward power of compact disk, the first annulus is become to ellipsoid with the second ring compression simultaneously, can make the student know how ellipsoid gets, structure understands understandable.
2) elliptic paraboloid, all dismantle the upper semi-circle of the first annulus and the second annulus, can form elliptic paraboloid, simple to operate.In addition, the ocular demonstration by teaching aid, stayed deep impression to the student, improves student's learning interest, and results of learning are good.
2. the utility model is simple in structure, manufactures easily, is convenient to promote the use of on a large scale in higher mathematics is given lessons.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model while not demonstrating; Structural representation when Fig. 2 is the demonstration ellipsoid; Structural representation when Fig. 3 is demonstration elliptic paraboloid.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1-Fig. 3, present embodiment comprises chassis 1, compact disk 2, screw rod 3, nut 4, the first annulus 5 and the second annulus 6, compact disk 2 and chassis 1 be arranged in parallel up and down, screw rod 3 vertically is located in the middle part on compact disk 2 and chassis 1, on the first annulus 5 and the second annulus 6 screw rod 3 in the middle of compact disk 2 and chassis 1 rotatable arranged in a crossed manner, nut 4 is screwed on the screw rod 3 of compact disk 2 upper ends, and described the first annulus 5 is identical with the structure of the second annulus 6.
The first annulus 5 of present embodiment comprises upper semi-circle 7 and lower half circle 8, and upper semi-circle 7 and lower half circle 8 are symmetrical arranged, and removably connects between upper semi-circle 7 and lower half circle 8.So arrange, be convenient to demonstrate elliptic paraboloid, simple in structure, convenient operation.
The first annulus 5 of present embodiment is elastic circular ring.So arrange, be convenient to realize that the first annulus 5 and the second annulus 6 are extremely oval by circular compression.
As a kind of optimal way, the elastic circular ring of present embodiment is bamboo pole or Elastic plastic-rubber ring.So arrange, be convenient to draw materials.
Claims (3)
1. the multifunctional curved demonstration teaching aid of a higher mathematics special use, it is characterized in that: it comprises chassis (1), compact disk (2), screw rod (3), nut (4), the first annulus (5) and the second annulus (6), compact disk (2) and chassis (1) be arranged in parallel up and down, screw rod (3) vertically is located in the middle part of compact disk (2) and chassis (1), on the first annulus (5) and the second annulus (6) screw rod (3) in the middle of compact disk (2) and chassis (1) rotatable arranged in a crossed manner, nut (4) is screwed on the screw rod (3) of compact disk (2) upper end, described the first annulus (5) is identical with the structure of the second annulus (6).
2. the multifunctional curved demonstration teaching aid of higher mathematics special use according to claim 1, it is characterized in that: described the first annulus (5) comprises upper semi-circle (7) and lower half circle (8), upper semi-circle (7) and lower half circle (8) are symmetrical arranged, and removably connect between upper semi-circle (7) and lower half circle (8).
3. the multifunctional curved demonstration teaching aid of higher mathematics special use according to claim 2, it is characterized in that: described the first annulus (5) is elastic circular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320441300 CN203366600U (en) | 2013-07-24 | 2013-07-24 | Multifunctional curved surface demonstration teaching aid special for advanced mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320441300 CN203366600U (en) | 2013-07-24 | 2013-07-24 | Multifunctional curved surface demonstration teaching aid special for advanced mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203366600U true CN203366600U (en) | 2013-12-25 |
Family
ID=49814333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320441300 Expired - Fee Related CN203366600U (en) | 2013-07-24 | 2013-07-24 | Multifunctional curved surface demonstration teaching aid special for advanced mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203366600U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198488A (en) * | 2017-12-20 | 2018-06-22 | 黑龙江建筑职业技术学院 | Surface of revolution body producing device and production method |
| CN109147497A (en) * | 2018-09-21 | 2019-01-04 | 安徽理工大学 | A kind of higher mathematics curved surface demonstration teaching aid and its control circuit |
| CN109979281A (en) * | 2019-04-30 | 2019-07-05 | 潍坊护理职业学院 | Multifunctional teaching rod is used in a kind of teaching |
| CN111243390A (en) * | 2020-03-04 | 2020-06-05 | 吉林师范大学 | Higher mathematics rotating curved surface demonstration device and demonstration method thereof |
-
2013
- 2013-07-24 CN CN 201320441300 patent/CN203366600U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198488A (en) * | 2017-12-20 | 2018-06-22 | 黑龙江建筑职业技术学院 | Surface of revolution body producing device and production method |
| CN108198488B (en) * | 2017-12-20 | 2019-09-03 | 黑龙江建筑职业技术学院 | Surface of revolution body producing device and production method |
| CN109147497A (en) * | 2018-09-21 | 2019-01-04 | 安徽理工大学 | A kind of higher mathematics curved surface demonstration teaching aid and its control circuit |
| CN109147497B (en) * | 2018-09-21 | 2020-07-14 | 安徽理工大学 | Higher mathematics curved surface demonstration teaching aid and control circuit thereof |
| CN109979281A (en) * | 2019-04-30 | 2019-07-05 | 潍坊护理职业学院 | Multifunctional teaching rod is used in a kind of teaching |
| CN111243390A (en) * | 2020-03-04 | 2020-06-05 | 吉林师范大学 | Higher mathematics rotating curved surface demonstration device and demonstration method thereof |
| CN111243390B (en) * | 2020-03-04 | 2022-02-25 | 吉林师范大学 | Higher mathematics rotating curved surface demonstration device and demonstration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |