CN209525808U - A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid - Google Patents
A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid Download PDFInfo
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- CN209525808U CN209525808U CN201920018538.3U CN201920018538U CN209525808U CN 209525808 U CN209525808 U CN 209525808U CN 201920018538 U CN201920018538 U CN 201920018538U CN 209525808 U CN209525808 U CN 209525808U
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- teaching aid
- sliding block
- curved surface
- sliding slot
- connector
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Abstract
A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid, the utility model relates to teaching aid field, the utility model is aimed to solve the problem that at present during use space Analy teaching aid, and the solid figure of existing apparatus demonstration is single；It demonstrates a plurality of types of solid figures and then needs to carry multiple demonstration teaching aids, very inconvenient problem, the utility model pedestal, transmission device, carriage, connector and jackscrew；The transmission device includes telescopic cylinder, rack gear, transmission gear and transmission shaft；Carriage includes sliding slot and sliding block, sliding block can move back and forth in sliding slot, it is moved to designated position and passes through the clamp on sliding block, it is connected between sliding block on two sliding slots by connector, connector rotate be exactly curved surface figure demonstration, the position for adjusting sliding block can change Presentation Graphics；The utility model is suitable for the application of interspace analytic geometry teaching aid.
Description
Technical field
The utility model relates to teaching aid fields, and in particular to a kind of interspace analytic geometry demonstration teaching aid.
Background technique
Curved surface is a moving-wire, under given conditions, in the track that space continuously moves, ellipsoid and paraboloid
There are no dedicated teaching aids in classroom, and the partial knowledge is very abstract, therefore brings to the explanation of the partial knowledge
Inconvenience, Patent No. 201620707338.5 disclose a kind of higher mathematics curved surface demonstration teaching aid and solve this problem, the dress
It sets including nut I, threaded rod I, Double-ended nut, upper half annulus, connector, lower half annulus, threaded rod II, nut II, nut III, axis
Bar, bearing, motor, cabinet, switch and plug can not only demonstrate the process that bus forms surface of revolution around rotary shaft, and
And the formation of ellipsoid can be demonstrated, adjust the size of elliptical generatrix；
But this device is simply possible to use in the demonstration of ellipsoid and paraboloid, can bring during class demonstration following
Problem: the curved surface figure of existing apparatus demonstration is single, demonstrates a plurality of types of curved surface figures if necessary, and teacher needs to carry more
A demonstration teaching aid, it is very inconvenient；Therefore the device that can demonstrate a plurality of types of curved surfaces is needed.
Utility model content
The utility model aims to solve the problem that at present during use space Analy teaching aid, the curved surface of existing apparatus demonstration
Figure is single；It demonstrates a plurality of types of curved surface figures and then needs to carry multiple demonstration teaching aids, very inconvenient problem, and then provide
A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid.
The technical solution of the utility model is: a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid, it includes bottom
Seat, transmission device, sliding slot, sliding block, connector and jackscrew；The transmission device includes telescopic cylinder, rack gear, transmission gear and biography
The cylinder body of moving axis, the telescopic cylinder is fixed on the base, and the piston of telescopic cylinder is fixedly connected with rack gear, transmission gear setting
In the upper end of rack gear side with teeth, transmission gear is engaged with rack, and the center point is provided with transmission shaft, transmission shaft among transmission gear
On be provided at least two threaded holes；There are two the sliding slot settings, and two sliding slots are arranged in parallel on transmission shaft, each sliding slot
On a sliding block is at least set, the sliding block on two sliding slots is connected by connector, the front side surface and rear side of the sliding slot
Surface is respectively set fluted, and the middle position of the groove is provided with penetrating threaded hole, and the jackscrew sequentially passes through sliding slot
On threaded hole the two is fixedly connected with the threaded hole positioned at transmission shaft upper end；The threaded hole using on sliding slot is boundary point
For left half section and half section right, a sliding block is respectively set in half section of half section of left side for sliding slot and the right side, is provided with fixture on sliding block, on fixture
It is provided with threaded hole, jackscrew passes through the threaded hole on fixture, and sliding block is fixed on the chute；
Further, the sliding slot is transparent sliding slot, and the sliding block is transparent slide；
Further, the connector is semicircle ring connector；
Further, the connector is rubber band, and the end of two sliding slots is fixedly connected with transparent connecting rod, transparent connection
Hook is provided on bar, hook is connected with rubber band；
Further, the transmission gear is straight spur gear；
Further, one layer of colored coating convenient for observation is coated on the connector；
Further, the semicircle ring connector is elastic half-rings connector；
Further, the pedestal is provided at least one fixing clamp.
Working principle of the utility model is:
In actual operation, start telescopic cylinder first, the piston of telescopic cylinder is fixedly connected in rack gear, piston driving tooth
Item is moved forward and backward, and rack gear is engaged with transmission gear, and alternate rotation counterclockwise, transmission shaft are arranged rack drives transmission gear clockwise
The center point among transmission gear, transmission gear drives transmission shaft, and alternate rotation counterclockwise, two sliding slots are arranged in parallel clockwise
In on transmission shaft, sliding block is arranged on the chute, and sliding block is connected by sliding slot, so transmission shaft rotation drives sliding slot rotation, into
And the connector alternate rotation with movable slider and connection sliding block, the color that connector has convenient for observation, connector rotation are
Curved surface figure can be demonstrated.
The beneficial effects of the utility model are:
The utility model provides a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid, the carriage in the present apparatus
Including sliding slot and sliding block, sliding block can move back and forth in sliding slot, be moved to designated position by the clamp on sliding block, and two
Between sliding block on a sliding slot by connector connect, the connector for being coated with green paint rotate be exactly curved surface figure demonstration,
The position of adjustment sliding block can change Presentation Graphics；
When connector in the present apparatus is semicircle ring connector, the demonstration of spherical surface, ellipsoid may be implemented；
When connector in the present apparatus is rubber band, connector is rubber band, sliding slot and the connector lower end of connector upper end
The both ends of sliding slot are fixedly connected by transparent connecting rod, and hook is provided in transparent connecting rod, and hook is connected with rubber band, passes through
Change the position of sliding block and the position of hook, thus it is possible to vary Presentation Graphics are the cambered surfaces solid figures such as cylinder, circular cone, rotary table.
Detailed description of the invention
Fig. 1 is the schematic front view of the utility model；
Fig. 2 is the schematic top plan view of the utility model；
Fig. 3 is A-A in Fig. 1 of the utility model (amplification) schematic cross-sectional view；
Fig. 4 is that semicircle ring connector schematic diagram is installed in the device of the utility model；
Fig. 5 is that rubber band schematic diagram is installed in the device of the utility model.
Specific embodiment
Specific embodiment 1: illustrating present embodiment, a kind of adjustable space described in present embodiment in conjunction with Fig. 1-5
Analytic geometry curved surface demonstration teaching aid, it includes pedestal 1, transmission device, sliding slot 8, sliding block 9, connector 2 and jackscrew 3；The transmission
Device includes telescopic cylinder 4, rack gear 5, transmission gear 6 and transmission shaft 7, and the cylinder body of the telescopic cylinder 4 is fixed on pedestal 1,
The piston of telescopic cylinder 4 is fixedly connected with rack gear 5, and transmission gear 6 is arranged in the upper end of the side with teeth of rack gear 5, transmission gear 6 with
Rack gear 5 engages, and the intermediate the center point of transmission gear 6 is provided with transmission shaft 7, at least two threaded holes are provided on transmission shaft 7；It is described
There are two the settings of sliding slot 8, and two sliding slots 8 are arranged in parallel on transmission shaft 7, is at least arranged a sliding block 9 on each sliding slot 8, and two
Sliding block 9 on a sliding slot 8 is connected by connector 2, and the front side surface and rear side surface of the sliding slot 8 are respectively arranged with recessed
Slot 11, the middle position of the groove 11 are provided with penetrating threaded hole, and the jackscrew 3 sequentially passes through the threaded hole on sliding slot 8
The two is fixedly connected with the threaded hole for being located at 7 upper end of transmission shaft；The sliding slot 8 is divided into using the threaded hole on sliding slot 8 as boundary
Left half section and half section of the right side, half section of half section of a left side for sliding slot 8 and the right side are respectively set a sliding block 9, fixture 10 are provided on sliding block 9, press from both sides
Threaded hole is provided on tool 10, sliding block 9 is fixed on sliding slot 8 by the threaded hole that jackscrew 3 passes through on fixture 10；
In the present embodiment, carriage includes sliding slot 8 and sliding block 9, and sliding block 9 can move back and forth in sliding slot 8, is moved
It moves to designated position and is clamped by the fixture 10 on sliding block 9, connected between the sliding block 9 on two sliding slots 8 by connector 2, adjusted
The position of whole sliding block 9 can change the shape of connector 2, and then change the curved surface figure that connector 2 is formed during rotation.
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 1-5, sliding slot 8 described in present embodiment is transparent sliding slot,
The sliding block 9 is transparent slide；Other structures are same as the specific embodiment one with connection relationship；
In the present embodiment, sliding slot 8 and sliding block 9 are all transparent, in device rotation process, will not hinder connector
The display for the curved surface figure that 2 rotations are formed.
Specific embodiment 3: embodiment is described with reference to Fig. 4, connector 2 described in present embodiment is semicircular ring company
Fitting；Other structures are the same as one or two specific embodiments with connection relationship；
In the present embodiment, when connector 2 is semicircle ring connector in the present apparatus, spherical surface, ellipsoid may be implemented
Demonstration.
Specific embodiment 4: connector 2 described in embodiment is described with reference to Fig.5, present embodiment is rubber band, two
The end of sliding slot 8 is fixedly connected with transparent connecting rod 13, and hook is provided in transparent connecting rod 13, and hook is connected with rubber band；
Other structures are identical as one of specific embodiment one to three as connection relationship；
In the present embodiment, by changing the position of sliding block 9 and the position of hook, thus it is possible to vary Presentation Graphics are circle
The cambered surfaces solid figure such as column, circular cone, rotary table.
Specific embodiment 5: illustrating present embodiment in conjunction with Fig. 1, Fig. 2, Fig. 4 and Fig. 5, it is driven described in present embodiment
Gear 6 is straight spur gear；Other structures are identical as one of specific embodiment one to four as connection relationship.
Specific embodiment 6: illustrate present embodiment in conjunction with Fig. 1, Fig. 4 and Fig. 5, connector 2 described in present embodiment
On be coated with one layer convenient for observation colored coating；Other structures and one of connection relationship and specific embodiment one to five phase
Together；
In the present embodiment, the coating on connector 2 can be the obvious color such as red, green, orange, when
The curved surface figure that connector 2 is demonstrated when rotating becomes apparent from.
Specific embodiment 7: embodiment is described with reference to Fig. 4, semicircle ring connector described in present embodiment is elasticity
Semicircle ring connector；Other structures are identical as one of specific embodiment one to six as connection relationship.
Specific embodiment 8: illustrate present embodiment in conjunction with Fig. 1, Fig. 4 and Fig. 5, the setting of pedestal 1 described in present embodiment
There is at least one fixing clamp 12；Other structures are identical as one of specific embodiment one to seven as connection relationship；
In the present embodiment, the present apparatus is fixed on desktop by fixing clamp 12, and avoiding device occurs after device starting
It is mobile, enhance the stability of device.
The course of work:
In actual operation, start telescopic cylinder 4 first, the piston of telescopic cylinder 4 is fixedly connected in rack gear 5, piston band
Carry-over bar 5 is moved forward and backward, and rack gear 5 engages with transmission gear 6, rack gear 5 with the alternate rotation counterclockwise clockwise of nutating gear 6,
For the setting of transmission shaft 7 in the intermediate the center point of transmission gear 6, transmission gear 6 drives the alternate rotation counterclockwise clockwise of transmission shaft 7, and two
A sliding slot 8 is arranged in parallel on transmission shaft, and sliding block 9 is arranged on sliding slot 8, and sliding block 9 is connected by sliding slot 8, so transmission shaft
Rotation 7 drives sliding slot 8 to rotate, and then 2 alternate rotation of connector with movable slider 9 and connection sliding block 9, and connector 2 is with just
In the color of observation, the rotation of connector 2 can demonstrate curved surface figure.
Claims (8)
1. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid, which is characterized in that it include pedestal (1), transmission device,
Sliding slot (8), sliding block (9), connector (2) and jackscrew (3)；The transmission device includes telescopic cylinder (4), rack gear (5), driving cog
Wheel (6) and transmission shaft (7), the cylinder body of the telescopic cylinder (4) are fixed on pedestal (1), the piston and rack gear of telescopic cylinder (4)
(5) it being fixedly connected, transmission gear (6) is arranged in the upper end of rack gear (5) side with teeth, and transmission gear (6) is engaged with rack gear (5),
The intermediate the center point of transmission gear (6) is provided with transmission shaft (7), and transmission shaft is provided at least two threaded holes on (7)；The sliding slot
(8) there are two setting, two sliding slots (8) are arranged in parallel on transmission shaft (7), and a sliding block is at least arranged on each sliding slot (8)
(9), the sliding block (9) on two sliding slots (8) is connected by connector (2), the front side surface and rear side surface of the sliding slot (8)
It is respectively set fluted (11), the middle position of the groove (11) is provided with penetrating threaded hole, and the jackscrew (3) is successively worn
The two is fixedly connected by the threaded hole crossed on sliding slot (8) with the threaded hole for being located at transmission shaft (7) upper end；The sliding slot (8) is with cunning
Threaded hole on slot (8) is that boundary is divided into left half section and half section of the right side, and a cunning is respectively set in half section of a left side for sliding slot (8) and right half section
Block (9) is provided with fixture (10) on sliding block (9), and threaded hole is provided on fixture (10), and jackscrew (3) passes through on fixture (10)
Sliding block (9) is fixed on sliding slot (8) by threaded hole.
2. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid according to claim 1, it is characterised in that: the cunning
Slot (8) is transparent sliding slot, and the sliding block (9) is transparent slide.
3. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid according to claim 2, it is characterised in that: the company
Fitting (2) is semicircle ring connector.
4. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid according to claim 2, it is characterised in that: the company
Fitting (2) is rubber band, and the end of two sliding slots (8) is fixedly connected with transparent connecting rod (13), is arranged on transparent connecting rod (13)
There is hook, hook is connected with rubber band.
5. according to a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid of claim 3 or 4, it is characterised in that: institute
Stating transmission gear (6) is straight spur gear.
6. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid according to claim 5, it is characterised in that: the company
One layer of colored coating convenient for observation is coated on fitting (2).
7. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid according to claim 3, it is characterised in that: described half
Ring connecting piece is elastic half-rings connector.
8. a kind of adjustable interspace analytic geometry curved surface demonstration teaching aid described according to claim 6 or 7, it is characterised in that: institute
It states pedestal (1) and is provided at least one fixing clamp (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920018538.3U CN209525808U (en) | 2019-01-04 | 2019-01-04 | A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920018538.3U CN209525808U (en) | 2019-01-04 | 2019-01-04 | A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209525808U true CN209525808U (en) | 2019-10-22 |
Family
ID=68229151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920018538.3U Expired - Fee Related CN209525808U (en) | 2019-01-04 | 2019-01-04 | A kind of adjustable interspace analytic geometry curved surface demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209525808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110870643A (en) * | 2019-11-27 | 2020-03-10 | 江苏北方永磁科技有限公司 | Old and useless material is show shelf for sale |
| CN111554157A (en) * | 2020-05-07 | 2020-08-18 | 德州职业技术学院（德州市技师学院） | Higher mathematics rotating surface presentation device |
-
2019
- 2019-01-04 CN CN201920018538.3U patent/CN209525808U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110870643A (en) * | 2019-11-27 | 2020-03-10 | 江苏北方永磁科技有限公司 | Old and useless material is show shelf for sale |
| CN111554157A (en) * | 2020-05-07 | 2020-08-18 | 德州职业技术学院（德州市技师学院） | Higher mathematics rotating surface presentation device |
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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: 20191022 Termination date: 20210104 |