CN207637366U - Cylinder intersection formation basic theory demonstration teaching aid - Google Patents

Cylinder intersection formation basic theory demonstration teaching aid Download PDF

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Publication number
CN207637366U
CN207637366U CN201720856803.6U CN201720856803U CN207637366U CN 207637366 U CN207637366 U CN 207637366U CN 201720856803 U CN201720856803 U CN 201720856803U CN 207637366 U CN207637366 U CN 207637366U
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CN
China
Prior art keywords
disk
cylindrical bar
teaching aid
basic theory
demonstration teaching
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Expired - Fee Related
Application number
CN201720856803.6U
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Chinese (zh)
Inventor
管巧娟
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Shenzhen Polytechnic
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Shenzhen Polytechnic
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Priority to CN201720856803.6U priority Critical patent/CN207637366U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of cylinder intersection formation basic theory demonstration teaching aids, including the first disk and the second disk, first disk is equipped with and surrounds columned telescopic first cylindrical bar, second disk is equipped with and surrounds columned telescopic second cylindrical bar, the quantity of first cylindrical bar and position are corresponding with second cylindrical bar, and first cylindrical bar can contradict second cylindrical bar.The utility model improves the teaching efficiency that periphery intersection involved in existing machinery drawing course is mapped.

Description

Cylinder intersection formation basic theory demonstration teaching aid
Technical field
The utility model belongs to educational aid field more particularly to a kind of cylinder intersection formation basic theory demonstration teaching aid.
Background technology
Currently, the technical foundation course " Graphing of Engineering " of colleges and universities' Engineering Speciality, is how a research uses X-Y scheme table Up to the stronger course of principle of 3D solid, a Major Difficulties for learning the course are exactly to establish space imagination.Professorship is learned It is raw to project this portion that maps general lack of the visionary that 3 D stereo is converted into X-Y scheme, especially revolving body surface intersection Divide content, how to be solved a problem with geometric element analysis and perplex student always.In traditional drawing course teaching, it is related to cylinder body surface When face intersection projection mapping content, most of teachers other than using the explanation of PPT coursewares, be more model display .Existing periphery intersection model is nearly all that shape secures, and it is not " wire frame that model appearance, which is " surface texture ", Structure ", student can only see forming process of the result shape without bosom friend's line of intersection.Teacher holds such model and teaches, Occur due to not having to simulate the line of geometric element and put, is just not easy to say the formation basic theory of intersection, for most of students, Understanding is got up very difficult.
Therefore, it is necessary to a teaching aid is designed, a teaching aid that simultaneously energy real-time change is shown characterized by " wire frame structure ", The principle sex knowledge explanation on mapping course is projected for periphery intersection, to improve teaching efficiency.
Utility model content
The main purpose of the utility model is that proposing a kind of cylinder intersection formation basic theory demonstration teaching aid, it is intended to improve existing The teaching efficiency of periphery intersection projection mapping course involved in technology.
In order to realize above-mentioned technique effect, the cylinder intersection formation basic theory demonstration teaching aid of the utility model, including the first circle Disk and the second disk, first disk are equipped with and surround columned telescopic first cylindrical bar, and second disk is equipped with Surround columned telescopic second cylindrical bar, the quantity of first cylindrical bar and position with second cylindrical bar pair It answers, first cylindrical bar can contradict second cylindrical bar.
Preferably, it is connected by the first limit hole and the first fixture block between every section of cylindrical bar of first cylindrical bar, institute It states and is connected by the second limit hole and the second fixture block between every section of cylindrical bar of the second cylindrical bar.
Preferably, first disk is offered using the first disc centre as the first through hole in the center of circle, second disk Offer the second through-hole using the second disc centre as the center of circle.
Preferably, further include centre post, described centre post one end is fixed with first disc centre, another End is fixed with second disc centre.
Preferably, further include third disk and connecting rod, described connecting rod one end is fixed with the third disc centre, separately One end is fixed with the centre post, and the third disk, which is equipped with, can surround columned telescopic third cylindrical bar.
Preferably, the connecting rod other end is fixed on the center of the centre post.
Preferably, first fixture block is connect with the spring being built in the first limit hole, second fixture block with it is built-in Spring connection in the second limit hole.
The cylinder intersection formation basic theory demonstration teaching aid of the utility model is to be directed to be related to periphery intersection perspective view Mapping Course Exercise, pass through telescopic first cylindrical bar of the first disk and telescopic second cylinder of the second disk Bar, this Telescopic realize that the three-dimensional demonstrating effect being related in periphery intersection perspective view mapping course, this teaching aid will Two dimension view in course is converted into the relief and relevant cylinder of topic, is risen for the student of space imagination force difference To booster action, student is helped to be easier to understand periphery intersection content involved in course, to improve teaching efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment;
Fig. 2 is the schematic three dimensional views of the utility model embodiment;
Fig. 3 is the side view of the utility model embodiment;
Fig. 4 is the partial sectional view of the utility model embodiment;
Fig. 5 is the combination diagram of the first disk, the first disk and third disk in the utility model embodiment.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this Utility model.
This teaching aid according to for many years experience with students and the characteristic error that occurs in perspective view course of solving questions of students ', The real time demonstration model that display elements and concept element are integrated by taking cylinder as an example is had devised, to reach help Space imagination is established in life, mitigates abstract projection theory knowledge understanding difficulty, and guiding student is by concept of projection and display elements Carry out one-to-one imagination thinking.
It is the structural schematic diagram of the utility model embodiment with specific reference to Fig. 1, Fig. 1.
As shown in Figure 1, the cylinder intersection formation basic theory demonstration teaching aid of the utility model, including the first disk 5 and second circle Disk 6, first disk 5, which is equipped with, surrounds columned telescopic first cylindrical bar 4, and second disk 6 is equipped with and surrounds circle Columnar telescopic second cylindrical bar 3, the quantity of first cylindrical bar 4 and position are corresponding with second cylindrical bar 3, First cylindrical bar 4 can contradict second cylindrical bar 3.In the present embodiment, tutor auxiliary platform teaching aid overall structure is cylinder Shape is involved in the projection of periphery intersection and is made by telescopic first cylindrical bar 4 and telescopic second cylindrical bar 3 Two dimension view during figure, which corresponds to, to be had in relief three dimensions tutor auxiliary platform teaching aid, as shown in figure 3, being carried in figure Expression of the wire frame structure cylinder compared to two dimension view of indentation, there has obviously image comparison, therefore this technology side Case be directed to lack space imagination classmate for play certain booster action, suitable for classroom teaching attend class link and Homework link, improves teaching efficiency.
In the course that teacher is explained using this teaching aid to student, first cylindrical bar 4 and the second cylindrical bar 3 of this teaching aid After flexible, due to there is the appearance of the endpoint of more first cylindrical bars 4 and the second cylindrical bar 3, looked around a long way off as same is straight Line or curve form the intersection of multiple flexible endpoint compositions.It is this with cylindrical bar Telescopic orient come intersection point, it is corresponding Cutting intersection point or mutually pass through a meaning in principle, has highly annotated the process of section line and projections of intersection mapping in drawing, has shown Must be easy-to-understand, abstract thinking is become into vivid demonstration, improves the understandability of student.
Wherein, Fig. 2 is can refer to, is the schematic three dimensional views of the utility model embodiment, what is indicated in figure is this tutor auxiliary platform Schematic diagram when teaching aid is stood.
Preferably, it is connected by the first limit hole and the first fixture block between every section of cylindrical bar of first cylindrical bar 4, institute It states and is connected by the second limit hole and the second fixture block between every section of cylindrical bar of the second cylindrical bar 3.The present embodiment passes through limit hole The Telescopic of the first cylindrical bar and the second cylindrical bar is realized with fixture block connection type.
Preferably, first disk is offered using the first disc centre as the first through hole in the center of circle, second disk Offer the second through-hole using the second disc centre as the center of circle.The present embodiment by opened up on the first disk first through hole, The second through-hole is opened up on second disk and realizes lighting, is conducive to student and holds, and mitigates weight, it is easy to carry.
As illustrated in fig. 1, it is preferred that further including centre post 7,7 one end of the centre post and first disk 5 Center is fixed, and the other end is fixed with 6 center of the second disk.The present embodiment is arranged by centre post 7, improves first Stability between disk 5 and the second disk 6.First disk 5 and the second disk 6 are connected into complete cylinder.
With reference to figure 5, Fig. 5 is the combination signal of the first disk, the first disk and third disk in the utility model embodiment Figure.
As shown in Figure 5, it is preferable that further include third disk 11 and connecting rod, described connecting rod one end is justified with the third 11 center of disk is fixed, and the other end is fixed with the centre post, and the third disk 11, which is equipped with, can surround columned stretch The third cylindrical bar 12 of contracting.The present embodiment, which is directed to, is related to the mapping Course Exercise of cylinder intersection, by third disk Scalable third cylindrical bar 12, the third cylindrical bar can contradict the surface of first cylindrical bar, 4 and second cylindrical bar 3, It wherein contradicts point to be sequentially connected as intersection, it is clear that the present embodiment corresponds to two-dimensional projection views in course with three-dimensional sense Teaching aid, be directed to the imagination force difference student, provide develop the mind, the condition for study of comparative analysis, improve the religion of course Learn effect.
With reference to figure 4, Fig. 4 is the partial sectional view in the utility model embodiment.
As shown in Figure 4, it is preferable that first fixture block is connect with the spring 10 being built in the first limit hole, and described Two fixture blocks are connect with the spring 10 being built in the second limit hole.The present embodiment passes through 10 elastic force of spring so that operator passes through Cylindrical bar Telescopic can be realized in pressing fixture block, and between each cylindrical bar, and fixture block can be under the effect of the elastic force of spring Each cylindrical bar is fixed, fastness is strong.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are equally included in the patent within the scope of the utility model.

Claims (5)

1. a kind of cylinder intersection formation basic theory demonstration teaching aid, which is characterized in that including the first disk and the second disk, described first Disk is equipped with and surrounds columned telescopic first cylindrical bar, and second disk, which is equipped with, surrounds columned telescopic the The quantity of two cylindrical bars, first cylindrical bar is identical as the quantity of the second cylindrical bar, first cylindrical bar and the second cylinder Bar is in corresponding up and down in the vertical direction, and first cylindrical bar can contradict second cylindrical bar.
2. cylinder intersection formation basic theory demonstration teaching aid as described in claim 1, which is characterized in that first disk offer with First disc centre is the first through hole in the center of circle, and second disk is offered to be led to using the second disc centre as the second of the center of circle Hole.
3. cylinder intersection formation basic theory demonstration teaching aid as described in claim 1, which is characterized in that further include centre post, institute It states centre post one end to fix with first disc centre, the other end is fixed with second disc centre.
4. cylinder intersection formation basic theory demonstration teaching aid as claimed in claim 3, which is characterized in that further include third disk and connection Bar, described connecting rod one end are fixed with the third disc centre, and the other end is fixed with the centre post, the third circle Disk, which is equipped with, can surround columned telescopic third cylindrical bar.
5. cylinder intersection formation basic theory demonstration teaching aid as claimed in claim 4, which is characterized in that the connecting rod other end is fixed At the center of the centre post.
CN201720856803.6U 2017-07-14 2017-07-14 Cylinder intersection formation basic theory demonstration teaching aid Expired - Fee Related CN207637366U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720856803.6U CN207637366U (en) 2017-07-14 2017-07-14 Cylinder intersection formation basic theory demonstration teaching aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720856803.6U CN207637366U (en) 2017-07-14 2017-07-14 Cylinder intersection formation basic theory demonstration teaching aid

Publications (1)

Publication Number Publication Date
CN207637366U true CN207637366U (en) 2018-07-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720856803.6U Expired - Fee Related CN207637366U (en) 2017-07-14 2017-07-14 Cylinder intersection formation basic theory demonstration teaching aid

Country Status (1)

Country Link
CN (1) CN207637366U (en)

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GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180720

Termination date: 20190714

CF01 Termination of patent right due to non-payment of annual fee