CN205211264U - Lever principle tests teaching aid - Google Patents
Lever principle tests teaching aid Download PDFInfo
- Publication number
- CN205211264U CN205211264U CN201521043032.6U CN201521043032U CN205211264U CN 205211264 U CN205211264 U CN 205211264U CN 201521043032 U CN201521043032 U CN 201521043032U CN 205211264 U CN205211264 U CN 205211264U
- Authority
- CN
- China
- Prior art keywords
- crossbeam
- branch
- pole
- lever principle
- pole axle
- Prior art date
- 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
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a lever principle tests teaching aid, including base, branch and crossbeam, the base lower part is equipped with the gyro wheel, branch sets up in the center of base upper surface department, is equipped with the branch axle on the branch, and the epaxial portion of branch is equipped with the branch axle cap, the crossbeam is installed branch epaxially, and crossbeam upper portion every 5mm is equipped with a branch axle mounting hole, and branch axle mounting hole lower part is equipped with the spout, and spout lower part every 2mm is equipped with a recess, and crossbeam lower limb department is equipped with the scale mark, be equipped with the slider in the spout, the slider lower part is equipped with the scale pan, places the weight on the scale pan, the utility model discloses make the teacher when demonstrating the lever experiment for the student, can accurately know the loading quality at lever both ends and the loading moment at lever both ends, make the understanding lever principle's that the student can be more accurate definition, the utility model discloses simple structure, convenient operation, and area is little, and experimental efficiency is high, and the experiment degree of accuracy is high.
Description
Technical field
The utility model relates to a kind of experimental teaching apparatus, specifically a kind of lever principle experiment teaching aid.
Background technology
Lever principle is one of principle important in physics, and in physics teaching, demonstration lever principle can allow the understanding lever rule that student can be more vivid.At present, teacher is when doing lever principle experiment, and be all use light instrument to simulate, teacher accurately can not load the quality at lever two ends, can not accurate positioning supporting point position, by virtue of experience can only carry out lever principle simulation with feel; In addition, general lever principle teaching aid by counterweight fixed placement on position accurately, can not directly can not read the size of moment.
Utility model content
The purpose of this utility model is to provide a kind of lever principle experiment teaching aid, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of lever principle experiment teaching aid, comprises base, pole and crossbeam; Described base bottom is provided with roller; Described pole is arranged on the center of base upper surface, and pole is provided with pole axle, and pole axle top is provided with pole axle cap; Described crossbeam is arranged on pole axle, and crossbeam top is provided with a pole axle mounting hole every 5mm, and pole axle mounting hole bottom is provided with chute, and chute bottom is provided with a groove every 2mm, and crossbeam lower edge is provided with scale mark; Be provided with slide block in described chute, slide block bottom is provided with scale pan, and scale pan places counterweight.
As further program of the utility model: described slide block is made up of the two pieces of cakes linked together by steel wire.
As further program of the utility model: described steel wire diameter is less than the width of chute inner groovy, length is greater than the width of crossbeam.
As further program of the utility model: described pole axle is provided with crossbeam groove, crossbeam is placed in crossbeam groove, and pole axle cap is arranged on pole axle outward flange.
Compared with prior art, the beneficial effects of the utility model are:
The utility model middle cross beam is provided with scale, counterweight is marked with quality, make teacher when demonstrating lever experiment for student, accurately can know the load mass at lever two ends and the loading moment at lever two ends, enable student understand the definition of lever principle more accurately, the utility model structure is simple, easy to operate, and floor area is little, conventional efficient is high, and experiment accuracy is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of lever principle experiment teaching aid.
Fig. 2 is the structural representation of lever principle experiment teaching aid middle cross beam.
Fig. 3 is the structural representation of lever principle experiment teaching aid further groove.
Fig. 4 is the structural representation of slide block in lever principle experiment teaching aid.
In figure: 1-roller, 2-base, 3-pole, 4-counterweight, 5-crossbeam, 6-pole axle mounting hole, 7-scale pan, 8-slide block, 9-chute, 10-pole axle cap, 11-scale mark, 12-groove, 13-steel wire, 14-cake.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1-4, a kind of lever principle experiment teaching aid, comprise base 2, pole 3 and crossbeam 5; Described base 2 bottom is provided with roller 1, is convenient to mobile; Described pole 3 is arranged on the center of base 2 upper surface, and pole 3 is provided with pole axle, and pole axle top is provided with pole axle cap 10; Described crossbeam 5 is arranged on pole axle, and crossbeam 5 top is provided with a pole axle mounting hole 6 every 5mm, and pole axle mounting hole 5 bottom is provided with chute 9, and chute 9 bottom is provided with a groove 12 every 2mm, and crossbeam 5 lower edge is provided with scale mark 11; Be provided with slide block 8 in described chute 9, slide block 8 is made up of the two pieces of cakes 14 linked together by steel wire 13, and steel wire 13 diameter is less than the width of chute 9 inner groovy 12, and length is greater than the width of crossbeam 5; Described slide block 8 can move freely in chute 9, and falls in groove 12 in place; Described slide block 8 bottom is provided with scale pan 7, scale pan 7 is placed counterweight 4; Described pole axle is provided with crossbeam groove, and crossbeam 5 is placed in crossbeam groove, and pole axle cap 10 is arranged on pole axle outward flange, prevents crossbeam 5 from skidding off.
Principle of work of the present utility model is: when will carry out lever principle experiment, first pole axle is inserted in pole axle mounting hole 6 corresponding on crossbeam 5, regulate the distance of crossbeam 5 two ends slide block 8, corresponding counterweight 4 is added in the scale pan 7 of correspondence, crossbeam 5 is balanced, first read the quality of counterweight 4 in scale pan 7, then read the size of both sides moment by scale mark 11; Many experiments like this, verifies lever principle.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (4)
1. a lever principle experiment teaching aid, comprises base, pole and crossbeam; It is characterized in that, described base bottom is provided with roller; Described pole is arranged on the center of base upper surface, and pole is provided with pole axle, and pole axle top is provided with pole axle cap; Described crossbeam is arranged on pole axle, and crossbeam top is provided with a pole axle mounting hole every 5mm, and pole axle mounting hole bottom is provided with chute, and chute bottom is provided with a groove every 2mm, and crossbeam lower edge is provided with scale mark; Be provided with slide block in described chute, slide block bottom is provided with scale pan, and scale pan places counterweight.
2. lever principle experiment teaching aid according to claim 1, is characterized in that, described slide block is made up of the two pieces of cakes linked together by steel wire.
3. lever principle experiment teaching aid according to claim 1, is characterized in that, described steel wire diameter is less than the width of chute inner groovy, and length is greater than the width of crossbeam.
4. lever principle experiment teaching aid according to claim 1, is characterized in that, described pole axle is provided with crossbeam groove, and crossbeam is placed in crossbeam groove, and pole axle cap is arranged on pole axle outward flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043032.6U CN205211264U (en) | 2015-12-11 | 2015-12-11 | Lever principle tests teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043032.6U CN205211264U (en) | 2015-12-11 | 2015-12-11 | Lever principle tests teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211264U true CN205211264U (en) | 2016-05-04 |
Family
ID=55848967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521043032.6U Expired - Fee Related CN205211264U (en) | 2015-12-11 | 2015-12-11 | Lever principle tests teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810054A (en) * | 2016-05-27 | 2016-07-27 | 薛沐辉 | Device for demonstrating lever moment principle |
| CN108151862A (en) * | 2018-02-11 | 2018-06-12 | 苏州市计量测试研究所 | A kind of counterweight for electronic crane scale detection device loads zero balance device |
-
2015
- 2015-12-11 CN CN201521043032.6U patent/CN205211264U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810054A (en) * | 2016-05-27 | 2016-07-27 | 薛沐辉 | Device for demonstrating lever moment principle |
| CN108151862A (en) * | 2018-02-11 | 2018-06-12 | 苏州市计量测试研究所 | A kind of counterweight for electronic crane scale detection device loads zero balance device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203588494U (en) | Demonstration device used for history teaching | |
| CN205211264U (en) | Lever principle tests teaching aid | |
| CN202855134U (en) | Three-view projection teaching apparatus | |
| CN203694532U (en) | Leg pressing training device for dancing | |
| CN202904901U (en) | Political-teaching demonstration teaching appliance | |
| CN203314410U (en) | Teaching frame with adjustment function | |
| CN203562122U (en) | Lever-principle experiment teaching aid used for physics teaching | |
| CN205845364U (en) | A kind of demonstrating device for mathematics teaching | |
| CN204884321U (en) | Physical teaching is with overweight weightless presentation device | |
| CN204833830U (en) | Stay cord drive formula is overweight, and appearance is demonstrated to weightlessness | |
| CN204406827U (en) | A kind of buoyancy demonstrating device | |
| CN204050765U (en) | A kind of device for high jump of automatic control height | |
| CN203013071U (en) | Demonstrator for overweight and weightlessness | |
| CN204667721U (en) | A kind of physical teaching demonstration device | |
| CN204904654U (en) | Hooke law demonstrates appearance | |
| CN205788998U (en) | Marketing training publicity board | |
| CN204506255U (en) | A kind of math teacher multifunctional drawing tool | |
| CN204791680U (en) | Physics teaching demonstration apparatus | |
| CN204680255U (en) | A kind of mold attaching/detaching case of imparting knowledge to students | |
| CN204029225U (en) | A kind of mechanics teaching demonstration device | |
| CN204857001U (en) | Teaching demonstration appearance | |
| CN202887540U (en) | Novel tool for teaching lever | |
| CN204303223U (en) | A kind of teaching aid of mechanics teaching | |
| CN204870231U (en) | Mathematical education is with quick mapping instrument | |
| CN204423648U (en) | A kind of English teaching board |
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 |
Granted publication date: 20160504 Termination date: 20161211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |