CN207676540U - A kind of teaching aid for demonstrating solid geometry - Google Patents
A kind of teaching aid for demonstrating solid geometry Download PDFInfo
- Publication number
- CN207676540U CN207676540U CN201721459638.7U CN201721459638U CN207676540U CN 207676540 U CN207676540 U CN 207676540U CN 201721459638 U CN201721459638 U CN 201721459638U CN 207676540 U CN207676540 U CN 207676540U
- Authority
- CN
- China
- Prior art keywords
- swivel head
- support bar
- light source
- linear light
- solid geometry
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A kind of teaching aid for demonstrating solid geometry is related to a kind of mathematics teaching aid.The utility model cannot be restored really to solve the problems, such as that current solid geometry shows method and show solid geometry space.First support bar one end is vertically set on by connector on pedestal, and the other end is equipped with the first swivel head, and the first swivel head can be rotated around the axis of first support bar；One end of second support bar is connected on the first swivel head, and the other end is equipped with the second swivel head, and the second swivel head can be rotated around the axis of second support bar；One end of third supporting rod is connected on the second swivel head, and the other end connects third swivel head, and third swivel head can be rotated around the axis of third supporting rod；Rotating member is set on third swivel head, and rotating member fixes linear light source, and linear light source can be rotated by rotating member, i.e., linear light source can be around own axis.The utility model is suitable for the aided education of solid geometry.
Description
Technical field
The utility model is related to a kind of mathematics teaching aids.
Background technology
It is particularly important for the understanding in space in solid geometry, the study of general solid geometry be all by books, or
Person is shown solid space using the multimedia means such as computer and tool (such as PPT), presents in the plane so vertical
The method of the object in body space cannot play true reduction and really show solid geometry space, and learner is made to lack centainly in this way
Spatial cognition sense, in particular for the people that Spatial cognitive Abilities are poor, they cannot understand under traditional exhibition method
The effect that space multistory intersects with plane or space multistory with space multistory.
Utility model content
The utility model in order to solve current solid geometry show method cannot really restore and show solid geometry sky
Between the problem of.
A kind of teaching aid for demonstrating solid geometry, including pedestal, first support bar, second support bar, third supporting rod
And linear light source；
One end of the first support bar is vertically set on by connector on pedestal, and the other end of first support bar is set
There are the first swivel head, the first swivel head that can be rotated around the axis of first support bar；
One end of second support bar is connected on the first swivel head, and second support bar is vertically arranged with first support bar；The
The other end of two supporting rods is equipped with the second swivel head, and the second swivel head can be rotated around the axis of second support bar；
One end of third supporting rod is connected on the second swivel head, and third supporting rod is vertically arranged with second support bar；The
The other end of three supporting rods connects third swivel head, and third swivel head can be rotated around the axis of third supporting rod；Third is revolved
Rotating member is set in rotary head, and rotating member fixes linear light source, and linear light source can be rotated by rotating member, i.e. linear light source can be around
Own axis.
Further, a kind of teaching aid for demonstrating solid geometry further includes demonstration body, and the demonstration body is
The space body of arbitrary shape；Body is demonstrated when use to be placed on pedestal.
Further, the linear light source is cylinder, and illumination mouth is provided on the length direction of cylinder.
Further, the inside of the linear light source sets two pieces of wired baffle plates and LED light strip；
Two pieces of wired baffle plates are arranged in parallel, two pieces of wired respective one side of baffle plate and illumination mouth edge phase
Even, and two pieces of wired baffle plates it is parallel be formed by gap center line and be formed by round radius with cylinder cross section overlap；Lamp
Band is arranged on linear light source length direction in the inside of cylinder, and parallel with two pieces of wired baffle plates is formed by gap phase
It is corresponding.
Further, the first support bar can stretch.
Further, the second support bar can stretch.
Further, one end of the first support bar is used with connector by screw-thread fit.
Further, one end of the second support bar is used with the first swivel head by screw-thread fit.
Further, one end of the third supporting rod is used with the second swivel head by screw-thread fit.
Further, it is carved with grid scale on the pedestal.
The utility model has the advantages that：
It can be formed by plane to the intersection of a variety of solid space solids using the utility model to be shown, be percentage
Hundred real space body show, contribute to the performance and understanding of space multistory geometry, to enhance solid geometry intersection religion
Learn demonstrating effect.
Description of the drawings
Fig. 1 is the teaching aid structure schematic diagram in specific implementation mode one；
Fig. 2 is the main structure schematic diagram of linear light source；
Fig. 3 is the side structure schematic diagram of linear light source；
Fig. 4 is the representative side section view of linear light source；
Fig. 5 is that cube demonstrates schematic diagram；
Fig. 6 is that cube demonstrates schematic diagram；
Fig. 7 is that cone demonstrates schematic diagram.
Specific implementation mode
Specific implementation mode one：Embodiment is described with reference to Fig. 1,
A kind of teaching aid for demonstrating solid geometry, including pedestal 10, first support bar 21, second support bar 23, third
Supporting rod 25 and linear light source 30；
One end of the first support bar 21 is vertically set on by connector 20 on pedestal 10, first support bar 21
The other end is equipped with the first swivel head 22, and the first swivel head 22 can be rotated around the axis of first support bar 21；
One end of second support bar 23 is connected on the first swivel head 22, and second support bar 23 is vertical with first support bar 21
Setting；The other end of second support bar 23 is equipped with the second swivel head 24, and the second swivel head 24 can be around second support bar 23
Axis rotates；
One end of third supporting rod 25 is connected on the second swivel head 24, and third supporting rod 25 is vertical with second support bar 23
Setting；The other end connection third swivel head 27 of third supporting rod 25, third swivel head 27 can be around third supporting rod 25
Axis rotates；Rotating member 26 is set on third swivel head 27, and rotating member 26 fixes linear light source 30, and linear light source 30 can be by turning
Moving part 26 rotates, i.e., linear light source 30 can be around own axis.
Based on the first swivel head 22, second support bar 23 being capable of 360 degree of rotations in the horizontal direction；Based on the second swivel head
24, third supporting rod 25 being capable of 360 degree of rotations in the vertical direction；Linear light source 30 can be around own axis simultaneously, institute
Can ensure that light that linear light source 30 projects, can be arbitrary when the section demonstration of space body in solid geometry towards all directions
It adjusts.
Specific implementation mode two：Illustrate present embodiment in conjunction with Fig. 5 to Fig. 7,
A kind of teaching aid for demonstrating solid geometry described in present embodiment further includes demonstration body 90, the demonstration body
For the space body of arbitrary shape, including cylinder, cone, polygon prism (including cube, cuboid), polygonal pyramid and do not advise
Space body etc. then, for the needs or content production for being actually subjected to demonstration；The each face for demonstrating body is transparent panel, including transparent modeling
Flitch, glass plate etc.；It demonstrates body when use to be placed on pedestal 10, by adjusting the first swivel head 22, second swivel head 24
The irradiating angle of rotation angle and linear light source 30 makes the illumination that linear light source 30 is sent out be mapped on demonstration body, due to linear light source 30
The light launched forms smooth surface in the direction of propagation of light, and smooth surface passes through demonstration body, can be formed and be cut on each face of demonstration body
Each side in face.The light that linear light source 30 projects be that the light of red either other colors is red or the light of other colors across
It can be formed with coloured section when demonstrating body so that demonstrating effect becomes apparent from.
Other component and structure are same as the specific embodiment one.
Specific implementation mode three：Illustrate present embodiment in conjunction with Fig. 2 to Fig. 3,
Linear light source 30 described in present embodiment is cylinder, and illumination mouth 31 is provided on the length direction of cylinder, circle
Cylinder is opaque, and irradiation light is projected from illumination mouth.
The rotating member 26 can be circular ring shape bearing, and circular ring shape bearing holder (housing, cover) is in the middle part of linear light source 30, linear light source 30
It is rotated by bearing；Or the rotating member 26 is made of two annulus, two annulus are sleeved on the middle part of linear light source 30, linear light
Source 30 can rotate in annulus.
Other component and structure are the same as one or two specific embodiments.
Specific implementation mode four：Embodiment is described with reference to Fig. 4,
The inside of linear light source 30 described in present embodiment sets two pieces of wired baffle plates 32 and LED light strip 33；
Two pieces of wired baffle plates 32 are arranged in parallel, two pieces of 32 respective one side of wired baffle plate and 31 side of illumination mouth
Edge is connected, and the parallel gap center line that is formed by of two pieces of wired baffle plates 32 is formed by round radius weight with cylinder cross section
It closes；Light bar 33 is arranged on linear light source length direction in the inside of cylinder, and institute's shape parallel with two pieces of wired baffle plates 32
At gap it is corresponding.It can ensure in this way：It looks up in the axis of linear light source 30, the light that linear light source 30 is sent out is penetrated from illumination mouth 31
It is a light after going out, rather than forms the diverging light of covering of the fan dress.
Other component and structure are the same as the specific implementation mode 3.
Specific implementation mode five：
First support bar 21 described in present embodiment can stretch.
Other component and structure are identical as one of specific implementation mode one to four.
Specific implementation mode six：
Second support bar 23 described in present embodiment can stretch.
Other component and structure are identical as one of specific implementation mode one to five.
Specific implementation mode seven：
One end of first support bar 21 described in present embodiment is used with connector 20 by screw-thread fit.Other component
It is identical as one of specific implementation mode one to six with structure.
Specific implementation mode eight：
One end of second support bar 23 described in present embodiment is used with the first swivel head 22 by screw-thread fit.
Other component and structure are identical as one of specific implementation mode one to seven.
Specific implementation mode nine：
One end of third supporting rod 25 described in present embodiment is used with the second swivel head 24 by screw-thread fit.
Other component and structure are identical as one of specific implementation mode one to eight.
Specific implementation mode ten：
It is carved with grid scale on pedestal 10 described in present embodiment.Putting for demonstration body can be determined by grid scale
Position also can determine that linear light source 30 emits the smooth surface that light is formed and passes through demonstration body according to the height auxiliary based on linear light source 30
Angle.
Other component and structure are identical as one of specific implementation mode one to nine.
Claims (7)
1. a kind of teaching aid for demonstrating solid geometry, which is characterized in that including pedestal (10), first support bar (21), second
Supporting rod (23), third supporting rod (25) and linear light source (30)；Further include demonstration body (90), the demonstration body is space body；
Body is demonstrated when use to be placed on pedestal (10)；
One end of the first support bar (21) is vertically set on by connector (20) on pedestal (10), first support bar
(21) the other end is equipped with the first swivel head (22), and the first swivel head (22) can turn around the axis of first support bar (21)
It is dynamic；
One end of second support bar (23) is connected on the first swivel head (22), second support bar (23) and first support bar (21)
It is vertically arranged；The other end of second support bar (23) is equipped with the second swivel head (24), and the second swivel head (24) can be around second
The axis of supporting rod (23) rotates；
One end of third supporting rod (25) is connected on the second swivel head (24), third supporting rod (25) and second support bar (23)
It is vertically arranged；The other end connection third swivel head (27) of third supporting rod (25), third swivel head (27) can be around third
The axis of supporting rod (25) rotates；Rotating member (26) is set on third swivel head (27), rotating member (26) fixes linear light source (30),
And linear light source (30) can be rotated by rotating member (26), i.e., linear light source (30) can be around own axis；
The linear light source (30) is cylinder, and illumination mouth (31) is provided on the length direction of cylinder；
The inside of the linear light source (30) sets two pieces of wired baffle plates (32) and LED light strip (33)；
Two pieces of wired baffle plates (32) are arranged in parallel, two pieces of respective one side of wired baffle plate (32) and illumination mouth (31)
Edge is connected, and the parallel gap center line that is formed by of two pieces of wired baffle plates (32) is formed by round half with cylinder cross section
Diameter overlaps；Light bar (33) is arranged on linear light source length direction in the inside of cylinder, and with two pieces of wired baffle plates (32)
Parallel to be formed by that gap is corresponding, the light that linear light source (30) projects is red or other colors light.
2. a kind of teaching aid for demonstrating solid geometry according to claim 1, which is characterized in that the first support bar
(21) it can stretch.
3. a kind of teaching aid for demonstrating solid geometry according to claim 2, which is characterized in that the second support bar
(23) it can stretch.
4. a kind of teaching aid for demonstrating solid geometry according to claim 3, which is characterized in that first support
One end of bar (21) is used with connector (20) by screw-thread fit.
5. a kind of teaching aid for demonstrating solid geometry according to claim 4, which is characterized in that second support
One end of bar (23) is used with the first swivel head (22) by screw-thread fit.
6. a kind of teaching aid for demonstrating solid geometry according to claim 5, which is characterized in that the third support
One end of bar (25) is used with the second swivel head (24) by screw-thread fit.
7. a kind of teaching aid for demonstrating solid geometry according to claim 6, which is characterized in that the pedestal (10)
On be carved with grid scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721459638.7U CN207676540U (en) | 2017-11-03 | 2017-11-03 | A kind of teaching aid for demonstrating solid geometry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721459638.7U CN207676540U (en) | 2017-11-03 | 2017-11-03 | A kind of teaching aid for demonstrating solid geometry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676540U true CN207676540U (en) | 2018-07-31 |
Family
ID=62963752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721459638.7U Expired - Fee Related CN207676540U (en) | 2017-11-03 | 2017-11-03 | A kind of teaching aid for demonstrating solid geometry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676540U (en) |
-
2017
- 2017-11-03 CN CN201721459638.7U patent/CN207676540U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20201103 |