CN205038873U - Paraboloid demonstration teaching aid used for teaching university mathematics - Google Patents
Paraboloid demonstration teaching aid used for teaching university mathematics Download PDFInfo
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- CN205038873U CN205038873U CN201520823509.6U CN201520823509U CN205038873U CN 205038873 U CN205038873 U CN 205038873U CN 201520823509 U CN201520823509 U CN 201520823509U CN 205038873 U CN205038873 U CN 205038873U
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- round bar
- disk
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Abstract
Paraboloid demonstration teaching aid used for teaching university mathematics relates to a teaching aid. Is connected above the base with below two stands that set up side by side, what the stand divide into the looks suit just has upper and lower two sections of a plurality of spacing holes, the dead lever connection of two section upper and lower stands through penetrating spacing hole, the higher authority of two upper segment stands and support the diaphragm and is connected below, the centre of supporting the diaphragm are equipped with the through -hole that inserts the round bar, and the round bar rotates and is connected with supporting the diaphragm, and the upper end of round bar is connected with the lower extreme of parabolic shape's steel wire, are connected above the lower extreme of round bar and the disc, have between the stand with the following mount of being connected of support diaphragm, install a plurality of roller bearings on the mount, the setting is located on a plurality of roller bearings to disc lower surface periphery, the lower surface of disc has the handle near the middle part. The utility model discloses can be when the teacher explains the parabola with the knowwhy entityization, the student of being convenient for understands the content of learning directly perceivedly, improves the teaching efficiency.
Description
Technical field
The utility model relates to a kind of teaching aid, the parabola demonstration teaching aid of especially College Mathematics Teaching use.
Background technology
Mathematical education comprises the special surfaces such as parabola, parabola is applied very many in the ligthing paraphernalia such as car light, electric torch and radar, their reflective surface or reflecting surface are all parabolas, and para-curve is exactly parabola with its axis of symmetry for axis rotates 180 ° of faces obtained.Do not demonstrate the teaching aid that parabola is formed in current mathematical education, teacher can only explain paraboloidal teaching by abstract concept, is unfavorable for that student is to paraboloidal understanding, makes troubles to teaching.
Summary of the invention
The purpose of this utility model is the parabola demonstration teaching aid providing College Mathematics Teaching to use, teacher is when carrying out parabola teaching, by parabolic shape hypostazation, student can be made to learn parabola curricula more intuitively, is convenient to students knowledge.
Realize above-mentioned purpose, the utility model takes following technical proposals: the parabola demonstration teaching aid that College Mathematics Teaching uses, comprise base, support transverse slat, round bar, steel wire, disk, handle, fixed mount, two columns, two fixed bars and multiple roller bearing, the upper surface of described base is fixedly connected with the lower surface of two columns, two described columns are set up in parallel, each described column is divided into epimere column and hypomere column, described epimere column is set with mutually with hypomere column, epimere column and hypomere column are along the short transverse multiple spacing hole of spaced set respectively, the axis of described multiple spacing holes is all horizontally disposed with, one of them spacing hole of epimere column and one of them spacing hole of hypomere column are oppositely arranged, epimere column and hypomere column are fixedly connected with by the fixed bar penetrated in two spacing holes being oppositely arranged, the upper surface of two epimere columns is fixedly connected with the lower surface supporting transverse slat, the centre position of the upper surface of described support transverse slat is provided with through hole, round bar is inserted in described through hole, described round bar is rotationally connected with the through hole supporting transverse slat, described steel wire curves parabolic shape, the upper end of round bar is fixedly connected with the lower end of the steel wire curving parabolic shape, the lower end of round bar is fixedly connected with the centre position of the upper surface of disk, the fixed mount be fixedly connected with the lower surface supporting transverse slat is provided with between two columns, fixed mount is provided with multiple roller bearing, described disk is arranged on multiple roller bearings of fixed mount, and described multiple roller bearings are positioned at the lower surface periphery place of disk, multiple roller bearing is arranged along the radial direction of disk, the lower surface of disk is fixed with handle near middle part.
Compared with prior art, the beneficial effects of the utility model are: the parabola demonstration teaching aid that College Mathematics Teaching of the present utility model uses has reasonable in design, simple, practical feature.The utility model when teacher explains's parabola by knowwhy hypostazation, can be convenient to student and understand content intuitively, improves efficiency of teaching.
Accompanying drawing explanation
Fig. 1 is the one-piece construction axonometric drawing of the parabola demonstration teaching aid that College Mathematics Teaching of the present utility model uses;
Fig. 2 is the A place partial enlarged drawing of the teaching aid shown in Fig. 1;
Fig. 3 is the structural relation schematic diagram of the fixed mount of Fig. 1, disk, round bar and handle;
Component names shown in figure and label as follows:
1-base; 2-column; 3-supports transverse slat; 4-round bar; 5-steel wire; 6-fixed bar; 7-disk; 8-handle; 9-fixed mount; 10-roller bearing.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment; technical scheme in the utility model is clearly and completely described; obviously; described embodiment is only a part of embodiment of utility model; instead of whole embodiments; based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Fig. 1 ~ Fig. 3, the utility model discloses the parabola demonstration teaching aid that College Mathematics Teaching uses, comprise base 1, support transverse slat 3, round bar 4, steel wire 5, disk 7, handle 8, fixed mount 9, two columns 2, two fixed bars 6 and multiple roller bearing 10,
The upper surface of base 1 is fixedly connected with the lower surface of two columns 2, two columns 2 are set up in parallel, each column 2 is divided into epimere column 2-1 and hypomere column 2-2, epimere column 2-1 is set with hypomere column 2-2 phase, epimere column 2-1 and hypomere column 2-2 is along the short transverse multiple spacing hole of spaced set respectively, the axis of multiple spacing hole is all horizontally disposed with, one of them spacing hole of epimere column 2-1 and one of them spacing hole of hypomere column 2-2 are oppositely arranged, epimere column 2-1 and hypomere column 2-2 are fixedly connected with by the fixed bar 6 penetrated in two spacing holes being oppositely arranged, the upper surface of two epimere column 2-1 is fixedly connected with the lower surface supporting transverse slat 3, the centre position supporting the upper surface of transverse slat 3 is provided with through hole, round bar 4 is inserted in through hole, round bar 4 is rotationally connected with the through hole supporting transverse slat 3, steel wire 5 curves parabolic shape, the upper end of round bar 4 is fixedly connected with the lower end of the steel wire 5 curving parabolic shape, the lower end of round bar 4 is fixedly connected with the centre position of the upper surface of disk 7, the fixed mount 9 be fixedly connected with the lower surface supporting transverse slat 3 is provided with between two columns 2, fixed mount 9 is provided with multiple groove, a roller bearing 10 is rotatablely equipped with in each groove, the outer circumference surface diameter of roller bearing 10 is greater than the degree of depth of groove, roller bearing 10 is convenient to install, and the stability that improve when disk 7 rotates.Disk 7 is arranged on multiple roller bearings 10 of fixed mount 9, and described multiple roller bearings 10 are positioned at the lower surface periphery place of disk 7, and multiple roller bearing 10 is arranged along the radial direction of disk 7, and the lower surface of disk 7 is fixed with handle 8 near middle part.
Serve as a teacher and need to use the teaching aid shown in the utility model when carrying out parabola teaching demonstration, first two fixed bars 6 are taken out, after column 2 is adjusted to required height, again two fixed bars 6 are inserted in corresponding spacing hole; Use hand turning handle 8 subsequently, thus drive disk 7 to rotate, then drive the steel wire 5 of round bar 4 and parabolic shape to rotate, complete paraboloidal demonstration.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other dress bodily form formula.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the condition of equivalent by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (2)
1. the parabola demonstration teaching aid of a College Mathematics Teaching use, comprise base (1), support transverse slat (3), round bar (4), steel wire (5), disk (7), handle (8), fixed mount (9), two columns (2), two fixed bars (6) and multiple roller bearings (10)
It is characterized in that: the upper surface of described base (1) is fixedly connected with the lower surface of two columns (2), two described columns (2) are set up in parallel, each described column (2) is divided into epimere column (2-1) and hypomere column (2-2), described epimere column (2-1) is set with mutually with hypomere column (2-2), epimere column (2-1) and hypomere column (2-2) are along the short transverse multiple spacing hole of spaced set respectively, the axis of described multiple spacing holes is all horizontally disposed with, one of them spacing hole of epimere column (2-1) and one of them spacing hole of hypomere column (2-2) are oppositely arranged, epimere column (2-1) and hypomere column (2-2) are fixedly connected with by the fixed bar (6) penetrated in two spacing holes being oppositely arranged, the upper surface of two epimere columns (2-1) is fixedly connected with the lower surface supporting transverse slat (3), the centre position of the upper surface of described support transverse slat (3) is provided with through hole, round bar (4) is inserted in described through hole, described round bar (4) is rotationally connected with the through hole supporting transverse slat (3), described steel wire (5) curves parabolic shape, the upper end of round bar (4) is fixedly connected with the lower end of the steel wire (5) curving parabolic shape, the lower end of round bar (4) is fixedly connected with the centre position of the upper surface of disk (7), the fixed mount (9) be fixedly connected with the lower surface supporting transverse slat (3) is provided with between two columns (2), fixed mount (9) is provided with multiple roller bearing (10), described disk (7) is arranged on multiple roller bearings (10) of fixed mount (9), and described multiple roller bearings (10) are positioned at the lower surface periphery place of disk (7), multiple roller bearing (10) is arranged along the radial direction of disk (7), the lower surface of disk (7) is fixed with handle (8) near middle part.
2. the parabola demonstration teaching aid of College Mathematics Teaching use according to claim 1, it is characterized in that: described fixed mount (9) is provided with multiple groove, be rotatablely equipped with the roller bearing (10) described in each described groove, the outer circumference surface diameter of described roller bearing (10) is greater than the degree of depth of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823509.6U CN205038873U (en) | 2015-10-23 | 2015-10-23 | Paraboloid demonstration teaching aid used for teaching university mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823509.6U CN205038873U (en) | 2015-10-23 | 2015-10-23 | Paraboloid demonstration teaching aid used for teaching university mathematics |
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| Publication Number | Publication Date |
|---|---|
| CN205038873U true CN205038873U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520823509.6U Expired - Fee Related CN205038873U (en) | 2015-10-23 | 2015-10-23 | Paraboloid demonstration teaching aid used for teaching university mathematics |
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| Country | Link |
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| CN (1) | CN205038873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679154A (en) * | 2016-04-07 | 2016-06-15 | 齐齐哈尔大学 | Mechanics experimental instrument of rotation paraboloid |
-
2015
- 2015-10-23 CN CN201520823509.6U patent/CN205038873U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679154A (en) * | 2016-04-07 | 2016-06-15 | 齐齐哈尔大学 | Mechanics experimental instrument of rotation paraboloid |
| CN105679154B (en) * | 2016-04-07 | 2018-08-28 | 齐齐哈尔大学 | A kind of mechanics experiment instrument of the paraboloid of revolution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160217 Termination date: 20161023 |