CN202331979U - Movable instructional model for demonstrating shapes of curves of cross section and connector of cylinder - Google Patents
Movable instructional model for demonstrating shapes of curves of cross section and connector of cylinder Download PDFInfo
- Publication number
- CN202331979U CN202331979U CN2011203666302U CN201120366630U CN202331979U CN 202331979 U CN202331979 U CN 202331979U CN 2011203666302 U CN2011203666302 U CN 2011203666302U CN 201120366630 U CN201120366630 U CN 201120366630U CN 202331979 U CN202331979 U CN 202331979U
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- section
- cylinder
- model
- cross
- interface
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Abstract
The utility model discloses a movable instructional model for demonstrating the shapes of curves of a cross section and a connector of a cylinder. The movable instructional model comprises a hollow cylinder, the hollow cylinder has a cross section or a connector, and the inner wall of the cylinder is provided with a flexible inside surface. The inside surface of the instructional model disclosed by the utility model can be bent and then placed on the inner wall of the cylinder, so that the shape of the instructional model is exactly matched with the shape of the cylinder, then the instructional model can be taken out and unfolded, and after the instructional model is unfolded, the curves of the cross section and the connector of the cylinder are visually displayed.
Description
Technical field
The utility model relates to a kind of teaching mode, specifically relates to a kind of activity teaching model of demonstrating cylindrical cross-section or interface curve shape.
Background technology
Teaching mode is a kind of teaching appliance commonly used, be used for auxiliary teacher vivider, lecture mathematical knowledge intuitively, effectively, help the student to understand better and grasp mathematical knowledge.With geometric configuration; The cross section of cylinder or the curve shape of interface are difficult to the imagination, are a kind of very abstract geometrical concepts, the known teaching model; Right cylinder for example can not be cut cylinder and launch open to check the curve shape of interface easily in teaching.
Therefore be badly in need of a kind of teaching mode at teaching field, can be used to demonstrate cylindrical cross-section or interface curve shape.
Summary of the invention
The purpose of the utility model provides a kind of teaching mode, is easy to show the curve shape of cylindrical cross-section or interface through the demonstration cylindrical cross-section that provides or the activity teaching model of interface curve shape, and can reuses.Not only improve teaching efficiency greatly, excited students'interest in learning and results of learning, helped foster students' and novelty thinking ability, and effectively prolonged the serviceable life of product.
For realizing above-mentioned purpose, the utility model is realized through following technical scheme:
A kind of activity teaching model of demonstrating cylindrical cross-section or interface curve shape, said hollow cylinder has cross section or interface, and said cylindrical inner wall setting has the inside surface of toughness.
Described inside surface with toughness can adopt any feasible bendable material with toughness to process, and includes but not limited to rubber, plastic cement, polyurethane, polystyrene.
Preferably, said inside surface bending is placed in the cylinder, and fits like a glove with cylindrical inner wall, thus whole cross section of displaying that can be complete or interface shape.
The utility model does not limit the particular type of hollow cylinder, and described hollow cylinder includes but not limited to the straight tube cylinder, oblique circular cylinder, bend pipe, Y pipe with the drum of cross section or interface etc.
The demonstration cylindrical cross-section of the utility model or the activity teaching model of interface curve shape, inside surface is movable, can take out in the cylinder and launch, thereby represent the curve shape in interface or cross section.
Observe for ease; Preferably, the demonstration cylindrical cross-section of the utility model or the activity teaching model of interface curve shape, hollow cylinder wherein is transparent; Process through transparent material; The utility model does not limit used transparent material type, needs only and on engineering, can realize the transparent effect material, preferably organic glass or transparent plastic.
The demonstration cylindrical cross-section of the utility model or the activity teaching model of interface curve shape because used inside surface has certain toughness, can repeated flex use with launching, and have increased the serviceable life of model.
The activity teaching model of the utility model is demonstrated the curve shape of cylinder interface through movable inside surface, need not to cut open cylinder; Owing to used inside surface, realized and to have reused with toughness.Not only solve practical problems, and practiced thrift cost.But the ingenious inside surface with toughness repeated flex and expansion that utilized of the utility model is used to demonstrate cylindrical cross-section or interface curve shape effectively.So not only improve students'interest in learning, foster students', the novelty thinking ability that also helps to cultivate the student.
Description of drawings
Fig. 1 is the demonstration cylindrical cross-section or the interface curve shape activity teaching structure of models synoptic diagram of the utility model;
Fig. 2 is the cross-sectional view of the cylinder corresponding with Fig. 1;
Fig. 3 is the interface section stretch-out view of the corresponding cylinder of Fig. 1;
Fig. 4 is the interface section stretch-out view of the corresponding cylinder of Fig. 1;
Among Fig. 1: be two sections crossing hollow cylinders;
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further specified, appended embodiment is not as the qualification to the utility model.
As shown in Figure 1, demonstration cylindrical cross-section of the utility model or interface curve shape activity teaching model comprise: the hollow cylinder that interface is arranged forms inner hollow by two hollow cylinder 1A and 1B right angle intersection.
As shown in Figure 2, be the sectional view of cylinder A, B, cylinder A inwall has the inside surface 2A of toughness, and cylinder B inwall has the inside surface 2B of toughness.
Like Fig. 3, shown in 4, showed an A section cylindrical inner wall stretch-out view, a B section cylindrical inner wall stretch-out view.
In the above cylinder, hollow cylinder is that transparent material is processed, and for example can make with organic glass or transparent plastic, can see crooked back placement inwall wherein; Developed surface has certain toughness, and is can be repeatedly crooked, place in the cylinder after and inwall fit like a glove.
The above embodiment is the utility model preferred embodiment; The utility model is not limited to the foregoing description; Under the enlightenment of the utility model, those skilled in the art need not spend creative work and the equivalence made replacement, all belongs to the protection domain of the utility model.The protection domain of the utility model is covered by the equivalents of its claim and claim.
Claims (6)
1. an activity teaching model of demonstrating cylindrical cross-section or interface curve shape is characterized in that comprising a hollow cylinder, and said hollow cylinder has cross section or interface, and said cylindrical inner wall setting has the inside surface of toughness.
2. the activity teaching model of demonstration cylindrical cross-section according to claim 1 or interface curve shape is characterized in that said inside surface surface curvature places cylindrical inner wall, fits like a glove with cylindrical shape.
3. the activity teaching model of demonstration cylindrical cross-section according to claim 1 or interface curve shape is characterized in that said inside surface is desirable go out to launch.
4. the activity teaching model of demonstration cylindrical cross-section according to claim 1 or interface curve shape is characterized in that said hollow cylinder comprises straight tube cylinder, oblique circular cylinder, bend pipe, the Y pipe of the drum of band cross section or interface.
5. the activity teaching model of demonstration cylindrical cross-section according to claim 1 or interface curve shape is characterized in that said hollow cylinder processed by transparent material.
6. the activity teaching model of demonstration cylindrical cross-section according to claim 5 or interface curve shape is characterized in that said transparent material is organic glass or transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203666302U CN202331979U (en) | 2011-09-29 | 2011-09-29 | Movable instructional model for demonstrating shapes of curves of cross section and connector of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203666302U CN202331979U (en) | 2011-09-29 | 2011-09-29 | Movable instructional model for demonstrating shapes of curves of cross section and connector of cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331979U true CN202331979U (en) | 2012-07-11 |
Family
ID=46443951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203666302U Expired - Fee Related CN202331979U (en) | 2011-09-29 | 2011-09-29 | Movable instructional model for demonstrating shapes of curves of cross section and connector of cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331979U (en) |
-
2011
- 2011-09-29 CN CN2011203666302U patent/CN202331979U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING CHINAEDUSTAR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHOU JIANYU Effective date: 20130204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130204 Address after: 100096 No. 3, building 1, No. 1107, ten Street, Haidian District, Beijing Patentee after: Beijing Chinaedustar Technology Co., Ltd. Address before: 100096, Beijing, Xisanqi Haidian District building materials East Road, Fuli Taoyuan C22 building, 1 gate 501 Patentee before: Zhou Jianyu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20180929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |