CN209401173U - A kind of high school mathematics teaching geometric projection device - Google Patents
A kind of high school mathematics teaching geometric projection device Download PDFInfo
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- CN209401173U CN209401173U CN201821649006.1U CN201821649006U CN209401173U CN 209401173 U CN209401173 U CN 209401173U CN 201821649006 U CN201821649006 U CN 201821649006U CN 209401173 U CN209401173 U CN 209401173U
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Abstract
The utility model discloses a kind of high school mathematics teaching geometric projection devices, including support plate, the upper surface of support plate is fixedly connected with projection plate, the upper surface of support plate is rotatably connected to turntable, the upper surface of turntable is fixedly connected there are two support rod, pass through support plate, projection plate, turntable, support rod, article placement plate, angle deflection arrangement, clamping apparatus, three-dimensional model and lighting device are used cooperatively, three-dimensional model is clamped by clamping apparatus, it is fixed on it in article placement plate, then lighting device is slided, keep it vertical with support plate, then start lighting device, lighting device carries out illumination to three-dimensional model, the shadowgraph imaging of three-dimensional model is on projection plate, observation projection plate can observe the shape of view, by rotation turntable and adjusting the angle conversion equipment keeps the rotation of three-dimensional model specific Direction is projected, and then obtains the three-view diagram of three-dimensional model.
Description
Technical field
The utility model relates to teaching aid technical field, specially a kind of high school mathematics teaching geometric projection device.
Background technique
High school teachers generally can all need to be awarded by three-dimensional model in the geometry teaching for carrying out Mathematics Curriculum
Class, student can intuitively draw three-view diagram by three-dimensional model very much, however the three-view diagram of student's primary learning three-dimensional model
When the technique of painting, teacher needs student when the angular transition ability to three-dimensional model progress three-view diagram more intuitively to observe its shape, and
The rotation of geometry may be implemented in existing geometric projection device, but the operation of teacher is excessively cumbersome, very inconvenient, and student
Can not intuitively find out the shape of geometric projection, spy proposes a kind of high school mathematics teaching geometric projection device thus.
Utility model content
The purpose of this utility model is to provide a kind of high school mathematics teaching geometric projection devices, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of high school mathematics teaching geometric projection
Device, including support plate, the upper surface of the support plate are fixedly connected with projection plate, the upper surface rotation connection of the support plate
There is a turntable, the upper surface of the turntable is fixedly connected there are two support rod, is rotatably connected to article between two support rods
Placement plate, the lateral wall of the article placement plate are rotatably connected to angle deflection arrangement, and the upper surface of the article placement plate is solid
Dingan County is equipped with clamping apparatus, and the lateral wall of the clamping apparatus is connected with three-dimensional model, and the right side wall of the support plate slides peace
Equipped with lighting device.
Preferably, the angle deflection arrangement includes the bull stick that is fixedly connected of front surface of the article placement plate, described
The front end of bull stick extends to outside through support rod, and the lateral wall of the bull stick is fixedly connected with gear, support rod described in front end
Upper surface offer first sliding groove, the inner sidewall of the first sliding groove slidably connects slide bar, and the lower end of slide bar and first
The first spring is fixedly connected between sliding slot, the upper end of the slide bar is meshed with gear.
Preferably, the clamping apparatus includes the second sliding slot that opens up of upper surface of the article placement plate, and described second
The inner sidewall of sliding slot is slidably connected there are two slide plate, and the three-dimensional model is connected between two slide plates, the second sliding slot
Left and right side walls offer equally distributed threaded hole, and the inner sidewall of the threaded hole is bolted with screw rod, the outside of the screw rod
Wall fits with slide plate.
Preferably, the lighting device includes the third sliding slot that opens up of right side wall of the support plate, the third sliding slot
Inner sidewall slidably connect illuminatian plate, the forward and backward side wall of the illuminatian plate is fixedly connected to gag lever post, the third sliding slot
Inner sidewall offer limiting slot, the lateral wall of the gag lever post is mutually slidably connected with limiting slot, the upper surface of the support plate
Opening is offered, and the lower end being open is connected with third sliding slot, the left side wall of the opening is fixedly connected with fixed link, described
The right side wall of fixed link is rotatably connected to fixture block, and lateral wall and the illuminatian plate of the fixture block fit.
Preferably, the upper surface of the support plate is fixedly connected with calibration loop, and the inner sidewall of the calibration loop, which is socketed on, to be turned
The lateral wall of the lateral wall of disk, support rod described in front end is fixedly connected with dial, and the front end of the bull stick is prolonged through dial
Outside is extended to, the rear wall of the slide bar and the lateral wall of turntable are fixedly connected to indicator.
Preferably, the illuminatian plate includes shell, and the left side wall of the shell is fixedly installed with equally distributed LED light,
The front surface of the shell offers card slot, and the inner sidewall of the card slot is plugged with rechargeable battery, and the rear wall of the shell is solid
It is connected between the LED light, rechargeable battery and switch by conducting wire equipped with switch Dingan County.
Compared with prior art, the utility model has the beneficial effects that a kind of high school mathematics teaching geometric projection device,
Pass through support plate, projection plate, turntable, support rod, article placement plate, angle deflection arrangement, clamping apparatus, three-dimensional model and illumination
Device is used cooperatively, and is clamped three-dimensional model by clamping apparatus, is fixed on it in article placement plate, then slides
Lighting device keeps it vertical with support plate, then starts lighting device, and lighting device carries out illumination, three-dimensional mould to three-dimensional model
For the shadowgraph imaging of type on projection plate, observation projection plate can observe the shape of view, pass through rotation turntable and adjustment
Angle conversion device projects the specific direction of the rotation of three-dimensional model, and then obtains the three-view diagram of three-dimensional model.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is detail view at a in Fig. 1.
Fig. 3 is detail view at b in Fig. 1.
Fig. 4 is the utility model illuminatian plate schematic diagram.
In figure: 1 support plate, 2 projection plates, 3 turntables, 4 support rods, 5 article placement plates, 6 angle deflection arrangements, 7 clamping dresses
Set, 8 three-dimensional models, 9 lighting devices, 10 bull sticks, 11 gears, 12 first sliding grooves, 13 slide bars, 14 first springs, 15 second sliding slots,
16 slide plates, 17 threaded holes, 18 screw rods, 19 third sliding slots, 20 illuminatian plates, 21 gag lever posts, 22 limiting slots, 23 openings, 24 fixed links,
25 fixture blocks, 26 calibration loops, 27 dials, 28 indicators, 29 shells, 30 LED light, 31 card slots, 32 rechargeable batteries, 33 switches.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-4, the utility model provides a kind of technical solution: a kind of high school mathematics teaching is filled with geometric projection
It sets, including support plate 1, the upper surface of support plate 1 is fixedly connected with projection plate 2, and the upper surface of support plate 1 is rotatably connected to turntable
3, the upper surface of turntable 3 is fixedly connected there are two support rod 4, is rotatably connected to article placement plate 5, object between two support rods 4
The lateral wall of product placement plate 5 is rotatably connected to angle deflection arrangement 6, and the upper surface of article placement plate 5 is fixedly installed with clamping dress
7 are set, the lateral wall of clamping apparatus 7 is connected with three-dimensional model 8, and the right side wall of support plate 1 is slidably fitted with lighting device 9, projection
Plate 2 is polarized lenses, and polarized lenses effectively can exclude and filter out the scattering light in light beam, keep light not dazzling, student
It is observed by observing the shade that lighting device 9 maps out the irradiation of three-dimensional model 8 on projection plate 2, so that it may
The view shape of three-dimensional model 8 out, by adjusting the angle deflection arrangement 6 of special angle, it can be deduced that the vertical view of three-dimensional model 8
Figure, by the turntable 3 that turns an angle it can be concluded that the side view of three-dimensional model 8.
Specifically, the bull stick 10 that the front surface that angle deflection arrangement 6 includes article placement plate 5 is fixedly connected, bull stick 10
Front end extend to outside through support rod 4, the lateral wall of bull stick 10 is fixedly connected with gear 11, the upper table of front support bar 4
Face offers first sliding groove 12, and the inner sidewall of first sliding groove 12 slidably connects slide bar 13, and the lower end of slide bar 13 is slided with first
The first spring 14 is fixedly connected between slot 12, the upper end of slide bar 13 is meshed with gear 11, and three-dimensional model 8 passes through clamping apparatus
7 are stuck in article placement plate 5, obtain three-dimensional model by the shade that the irradiation of lighting device 9 is projected from projection plate 2
8 main view.
When adjusting the angle arrangement for deflecting 6, slide bar 13 is pulled, slides slide bar 13 in first sliding groove 12, the first spring 14
Compression, slide bar 13 are detached from the tooth socket of gear 11, rotate bull stick 10, rotate article placement plate 5, are clamped clamping apparatus 7
Three-dimensional model 8 be rotated by 90 ° to 2 direction of projection plate, lighting device 9 irradiates the shade that projects from projection plate 2 of three-dimensional model 8
It can obtain the top view of three-dimensional model 8.
Specifically, the second sliding slot 15 that the upper surface that clamping apparatus 7 includes article placement plate 5 opens up, second sliding slot 15
Inner sidewall be slidably connected there are two slide plate 16, three-dimensional model 8 is connected between two slide plates 16, second sliding slot 15 it is left and right
Side wall offers equally distributed threaded hole 17, and the inner sidewall of threaded hole 17 is bolted with screw rod 18, the lateral wall of screw rod 18 with
Slide plate 16 fits, and three-dimensional model 8 is placed into article placement plate 5, then sliding skateboard 16, makes slide plate 16 and three-dimensional model
Screw rod 18, is then spirally connected in corresponding threaded hole 17, and then three-dimensional model 8 is stuck in two cunnings by 8 forward and backward side wall fitting
Between plate 16, the lateral wall of slide plate 16 is in frosting, increases the frictional force of slide plate 16 and three-dimensional model 8.
Specifically, the third sliding slot 19 that the right side wall of lighting device 9 including support plate 1 opens up, third sliding slot 19 it is interior
Side walls are connected with illuminatian plate 20, and the forward and backward side wall of illuminatian plate 20 is fixedly connected to gag lever post 21, third sliding slot 19 it is interior
Side wall offers limiting slot 22, and lateral wall and 22 phase of limiting slot of gag lever post 21 are slidably connected, and the upper surface of support plate 1 offers
Opening 23, and 23 lower end of being open is connected with third sliding slot 19,23 left side wall of being open is fixedly connected with fixed link 24, fixation
The right side wall of bar 24 is rotatably connected to fixture block 25, and lateral wall and the illuminatian plate 20 of fixture block 25 fit, and illuminatian plate 20 is in initial bit
It is located in third sliding slot 19 when setting, in use, sliding illuminatian plate 20, illuminatian plate 20 slide in third sliding slot 19, gag lever post 21
It is slided in limiting slot 22, when gag lever post 21 slides into the limit, rotates illuminatian plate 20, the left side wall of illuminatian plate 20 and opening 23
Fitting, fixed link 24 is located at the front side wall of illuminatian plate 20 at this time, rotates fixture block 25, pastes the right side wall of fixture block 25 and illuminatian plate 20
It closes, limits the rotation of illuminatian plate 20, illuminatian plate 20 is vertical with support plate 1 at this time, starts lighting device 9, carries out to three-dimensional model 8
Illumination.
Specifically, the upper surface of support plate 1 is fixedly connected with calibration loop 26, the inner sidewall of calibration loop 26 is socketed on turntable
3 lateral wall, the lateral wall of front support bar 4 are fixedly connected with dial 27, and the front end of bull stick 10 extends through dial 27
To outside, the rear wall of slide bar 13 and the lateral wall of turntable 3 are fixedly connected to indicator 28, can observe 8 turns of three-dimensional model
Dynamic angle indicates angle label on calibration loop 26 and dial 27, rotates turntable 3 or rotation to reach accurate purpose
When article placement plate 5, indicator 28 can rotational angle to turntable 3 and article placement plate 5 in calibration loop 26 and dial 27
On be marked, with determine rotation angle.
Specifically, illuminatian plate 20 includes shell 29, the left side wall of shell 29 is fixedly installed with equally distributed LED light
30, the front surface of shell 29 offers card slot 31, and the inner sidewall of card slot 31 is plugged with rechargeable battery 32, and the rear wall of shell 29 is solid
Dingan County is equipped with switch 33, is connected between LED light 30, rechargeable battery 32 and switch 33 by conducting wire, passes through opening for control switch 33
It opens, LED light 30 and rechargeable battery 32 is made to form access, rechargeable battery 32 provides electricity, keeps LED light 30 bright, and then to three-dimensional mould
Type 8 is irradiated, and by the projection of three-dimensional model 8 on projection plate 2, it is three-dimensional that observation of students projection plate 2 can observe place
The projection of model 8.
Two support rods 4, article placement plate 5, slide plate 16, screw rod 18, slide bar 13, the first spring 12, gear 11 and bull stick
10 be clear hard plastics, and scattering and certain diffusing reflection occur when the light of LED light 30 impinges upon and penetrates clear hard plastics,
The light of transmission cannot uniformly project on projection plate 2, it appears and it is darker than the shade that three-dimensional model 8 projects, therefore can be very
Easily recognize the projection of three-dimensional model 8.
Working principle: three-dimensional model 8 being placed into article placement plate 5, then sliding skateboard 16, makes slide plate 16 and solid
The forward and backward side wall of model 8 is bonded, and then screw rod 18 is spirally connected in corresponding threaded hole 17, and then three-dimensional model 8 is stuck in two
Between a slide plate 16, illuminatian plate 20 is slided, illuminatian plate 20 slides in third sliding slot 19, and gag lever post 21 is sliding in limiting slot 22
It is dynamic, when gag lever post 21 slides into the limit, illuminatian plate 20 is rotated, illuminatian plate 20 is bonded with the left side wall of opening 23, fixes at this time
Bar 24 is located at the front side wall of illuminatian plate 20, rotates fixture block 25, is bonded fixture block 25 and the right side wall of illuminatian plate 20, limits illuminatian plate
20 rotation, illuminatian plate 20 is vertical with support plate 1 at this time, starts lighting device 9, illumination is carried out to three-dimensional model 8, at this time from throwing
That observes on shadow plate 2 makes the main view of three-dimensional model 8, and turntable 3 rotates 90 degree, and three-dimensional model 8 is formed on projection plate 2 at this time
It is the side view of three-dimensional model 8, adjusts the angle arrangement for deflecting 6, rotate article placement plate 5 between two support rods 4, make
Three-dimensional model 8 to 2 direction of projection plate rotate 90 degree, observed on projection plate 2 at this time be three-dimensional model 8 top view.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of high school mathematics teaching geometric projection device, it is characterised in that: including support plate (1), the support plate (1)
Upper surface is fixedly connected with projection plate (2), and the upper surface of the support plate (1) is rotatably connected to turntable (3), the turntable (3)
Upper surface be fixedly connected there are two support rod (4), be rotatably connected to article placement plate (5) between two support rods (4),
The lateral wall of the article placement plate (5) is rotatably connected to angle deflection arrangement (6), the upper surface of the article placement plate (5)
It is fixedly installed with clamping apparatus (7), the lateral wall of the clamping apparatus (7) is connected with three-dimensional model (8), the support plate (1)
Right side wall be slidably fitted with lighting device (9).
2. a kind of high school mathematics teaching geometric projection device according to claim 1, it is characterised in that: the angle is inclined
Rotary device (6) includes the bull stick (10) that the front surface of the article placement plate (5) is fixedly connected, and the front end of the bull stick (10) is passed through
Perforating branches strut (4) extends to outside, and the lateral wall of the bull stick (10) is fixedly connected with gear (11), support rod described in front end
(4) upper surface offers first sliding groove (12), and the inner sidewall of the first sliding groove (12) slidably connects slide bar (13), and sliding
It is fixedly connected with the first spring (14) between the lower end and first sliding groove (12) of bar (13), the upper end of the slide bar (13) and gear
(11) it is meshed.
3. a kind of high school mathematics teaching geometric projection device according to claim 1, it is characterised in that: the clamping dress
Set the second sliding slot (15) that the upper surface that (7) include the article placement plate (5) opens up, the inner sidewall of the second sliding slot (15)
It is slidably connected there are two slide plate (16), the three-dimensional model (8) is connected between two slide plates (16), the second sliding slot (15)
Left and right side walls offer equally distributed threaded hole (17), the inner sidewall of the threaded hole (17) is bolted with screw rod (18),
The lateral wall of the screw rod (18) fits with slide plate (16).
4. a kind of high school mathematics teaching geometric projection device according to claim 1, it is characterised in that: the illumination dress
Set the third sliding slot (19) that the right side wall that (9) include the support plate (1) opens up, the inner sidewall sliding of the third sliding slot (19)
It is connected with illuminatian plate (20), the forward and backward side wall of the illuminatian plate (20) is fixedly connected to gag lever post (21), the third sliding slot
(19) inner sidewall offers limiting slot (22), and lateral wall and the limiting slot (22) of the gag lever post (21) are mutually slidably connected, institute
The upper surface for stating support plate (1) offers opening (23), and the lower end of opening (23) is connected with third sliding slot (19), described to open
The left side wall of mouth (23) is fixedly connected with fixed link (24), and the right side wall of the fixed link (24) is rotatably connected to fixture block (25),
The lateral wall of the fixture block (25) fits with illuminatian plate (20).
5. a kind of high school mathematics teaching geometric projection device according to claim 2, it is characterised in that: the support plate
(1) upper surface is fixedly connected with calibration loop (26), and the inner sidewall of the calibration loop (26) is socketed on the lateral wall of turntable (3),
The lateral wall of support rod described in front end (4) is fixedly connected with dial (27), and dial is run through in the front end of the bull stick (10)
(27) outside is extended to, the rear wall of the slide bar (13) and the lateral wall of turntable (3) are fixedly connected to indicator (28).
6. a kind of high school mathematics teaching geometric projection device according to claim 4, it is characterised in that: the illuminatian plate
It (20) include shell (29), the left side wall of the shell (29) is fixedly installed with equally distributed LED light (30), the shell
(29) front surface offers card slot (31), and the inner sidewall of the card slot (31) is plugged with rechargeable battery (32), the shell
(29) rear wall is fixedly installed with switch (33), by leading between the LED light (30), rechargeable battery (32) and switch (33)
Line series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821649006.1U CN209401173U (en) | 2018-10-11 | 2018-10-11 | A kind of high school mathematics teaching geometric projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821649006.1U CN209401173U (en) | 2018-10-11 | 2018-10-11 | A kind of high school mathematics teaching geometric projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401173U true CN209401173U (en) | 2019-09-17 |
Family
ID=67876588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821649006.1U Expired - Fee Related CN209401173U (en) | 2018-10-11 | 2018-10-11 | A kind of high school mathematics teaching geometric projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628509A (en) * | 2021-08-19 | 2021-11-09 | 柳州工学院 | Multifunctional geometry teaching projector |
-
2018
- 2018-10-11 CN CN201821649006.1U patent/CN209401173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628509A (en) * | 2021-08-19 | 2021-11-09 | 柳州工学院 | Multifunctional geometry teaching projector |
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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: 20190917 Termination date: 20201011 |