CN208507060U - A kind of physical teaching aid Experimental Optical lever - Google Patents
A kind of physical teaching aid Experimental Optical lever Download PDFInfo
- Publication number
- CN208507060U CN208507060U CN201820317778.9U CN201820317778U CN208507060U CN 208507060 U CN208507060 U CN 208507060U CN 201820317778 U CN201820317778 U CN 201820317778U CN 208507060 U CN208507060 U CN 208507060U
- Authority
- CN
- China
- Prior art keywords
- crossbeam
- rotation shaft
- damping rotation
- optical lever
- teaching aid
- 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
Abstract
The utility model discloses a kind of physical teaching aid Experimental Optical lever, including preceding footing, rear foot fulcrum, crossbeam and mirror assembly, support rod is connected between the rear foot fulcrum and crossbeam, the preceding footing is located at crossbeam lower part, the mirror assembly is located above crossbeam, and the column being oppositely arranged including two and two mirror surfaces being oppositely arranged, Damping rotation shaft A is fixedly installed in the inside that the upper end of the column is oppositely arranged, connecting rod is fixedly installed in the left and right sides of the Damping rotation shaft A, Damping rotation shaft B is fixedly installed in the left and right sides of the mirror surface, it is fixedly connected between the Damping rotation shaft B and Damping rotation shaft A by the way that connecting rod is arranged.The utility model structure is simple, cost is relatively low, easy to operate, the mirror surface that the mirror assembly of the utility model is oppositely arranged by two forms, when incident ray enters in mirror assembly, reflection of the meeting between two mirror surfaces back and forth, the biggish angle of reflection of angle is formed, personnel's measurement is convenient for measuring.
Description
Technical field
The utility model relates to teaching experiment equipment technical fields, and in particular to a kind of physical teaching aid Experimental Optical lever.
Background technique
In Experiment of College Physics, Young's modulus and linear expansion coefficient determining experiment be frequently necessary to it is micro- to what is occurred in experiment
Just there is Physical Experiment optical lever in the experiment equipment that small deformation is measured, and usually selected to the measurement of the miniature deformation,
During the experiment, Physical Experiment optical lever can usually be placed on the platform being above the ground level and test, and measured object can produce
Raw deformation, can thus make Physical Experiment optical lever generate inclination, reflection light direction is made to change；Because of tested produce
Raw very small deformation, so the angle that the light and incident ray that reflect generate is also very small, bad measurement.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of physical teaching aid Experimental Optical is provided
Lever.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: physical teaching aid Experimental Optical lever, packet
Preceding footing, rear foot fulcrum, crossbeam and mirror assembly are included, is connected with support rod between the rear foot fulcrum and crossbeam, it is described
Preceding footing is located at crossbeam lower part, and innovative point is: the mirror assembly is located above crossbeam, and sets relatively including two
The column set and two mirror surfaces being oppositely arranged, Damping rotation shaft A is fixedly installed in the inside that the upper end of the column is oppositely arranged, described
Connecting rod is fixedly installed in the left and right sides of Damping rotation shaft A, and Damping rotation shaft B, institute is fixedly installed in the left and right sides of the mirror surface
It states and is fixedly connected between Damping rotation shaft B and Damping rotation shaft A by the way that connecting rod is arranged.
Further, the height of any one in the mirror surface is greater than another height.
Further, scale is set above the support rod, and setting point corresponding with preceding footing is made on the crossbeam
For the starting point of support rod high scale.
Further, the two sides of the crossbeam are connected with bracing wire, and the other end of the bracing wire connects counterweight.
Further, setting magnet is inlayed inside the counterweight.
After adopting the above structure, the utility model has the beneficial effect that
The utility model structure is simple, cost is relatively low, easy to operate, and the mirror assembly of the utility model is opposite by two
The mirror surface of setting forms, and when incident ray enters in mirror assembly, reflection of the meeting between two mirror surfaces back and forth forms angle
Biggish angle of reflection is spent, personnel's measurement is convenient for measuring；Scale is indicated above support rod, is marked on crossbeam corresponding with preceding footing
Starting point of the point as support rod high scale, during the experiment, without again deliberately remove to measure preceding footing to rear foot fulcrum
Linear distance, can be read directly by scale above, reduce experimental procedure, improve experimental precision；The two sides of crossbeam connect
It is connected to bracing wire, the other end of bracing wire is connected with counterweight, and when testing, experimenter is placed counterweight on the operational platform, prevents
Physical Experiment optical lever drops platform because of inclination and Physical Experiment optical lever is caused to damage, and magnet is arranged in counterweight,
It can make counterweight absorption on the operational platform, further prevent Physical Experiment optical lever from dropping platform because of inclination and cause object
Manage the damage of Experimental Optical lever.
Detailed description of the invention
Fig. 1 is the front view of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the utility model using renderings.
Footing, 2 rear foot fulcrums, 3 crossbeams, 4 mirror assemblies, 41 columns, 42 mirror surfaces, 43 Damping rotation shaft A, 44 connect before 1
Extension bar, 45 Damping rotation shaft B, 5 support rods, 51 scales, 6 bracing wires, 7 counterweights, 71 magnet.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
Embodiment, the present invention will be further described in detail.It should be appreciated that the specific embodiments described herein are only used
To explain the utility model, it is not used to limit the utility model.
Referring to Fig. 1, Fig. 2, a kind of physical teaching aid Experimental Optical lever, including preceding footing 1, rear foot fulcrum 2,3 and of crossbeam
Mirror assembly 4 is connected with support rod 5 between rear foot fulcrum 2 and crossbeam 3, preceding footing 1 is located at 3 lower part of crossbeam, reflects microscope group
Part 4 is located at 3 top of crossbeam, and the mirror surface 42 being oppositely arranged including two columns being oppositely arranged 41 and two, 41 upper end of column
Connecting rod 44 is fixedly installed in the inside fixed setting Damping rotation shaft A 43 being oppositely arranged, the left and right sides of Damping rotation shaft A 43,
Damping rotation shaft B 45 is fixedly installed in the left and right sides of mirror surface 42, passes through setting between Damping rotation shaft B 45 and Damping rotation shaft A 43
Connecting rod 44 is fixedly connected.Damping rotation shaft A 43 is into excessively special repacking, and there are two individual outer ring, each outer ring is individually with one
A connecting rod 44 is fixedly connected, and two such mirror surface 42 will not influence each other during exercise, and due to use be damping
Shaft, so the positioning that can be formed when being adjusted to suitable angle or position, convenient, flexible.
In the present embodiment, the height of any one in mirror surface 42 is greater than another height, is convenient for incident ray from two
Non-overlap position between person is injected between two mirror surfaces 42, reflection that then can be between two mirror surfaces 42 back and forth, forms angle
Biggish angle of reflection is spent, personnel's measurement is convenient for measuring.
In the present embodiment, scale 51 is arranged in support rod 5 above, is arranged and the corresponding conduct of preceding footing 1 on crossbeam 3
The starting point of 5 high scale of support rod.During the experiment, without the straight line for removing to measure preceding footing 1 and arriving rear foot fulcrum 2 again deliberately
Distance can be read directly by the scale in face, reduce experimental procedure, improve experimental precision, save when testing spent
Between.
In the present embodiment, the two sides of crossbeam 3 are connected with bracing wire 6, and the other end of bracing wire 6 connects counterweight 7.Experimenter's handle is matched
Playback is set on the operational platform, prevents Physical Experiment optical lever from dropping platform because of inclination and Physical Experiment optical lever is caused to damage
It is bad.
In the present embodiment, setting magnet 71 is inlayed inside counterweight 7, can make the absorption of counterweight 7 on the operational platform, further
Prevent Physical Experiment optical lever dropped because of inclination platform cause Physical Experiment optical lever damage.
Working principle of the utility model is:
Referring to Fig. 3, during the experiment, footing 1 before Physical Experiment optical lever is placed on elastic modulus tester
In fixed platform, rear foot fulcrum 2 is placed on the measurement end face of determinand, and counterweight 7 is placed on the stationary platform, it is noted that is matched
After weighing 7 placements, and it not influence to test because of 6 tension of bracing wire, if fixed platform is made of magnetic metal, counterweight 7
It can be adsorbed on the stationary platform by inner magnet 71.After measured object stress, minute elongation is generated, rear foot fulcrum 2 will be with
Small fluctuations are made in measurement end face together, and make Physical Experiment optical lever around preceding footing 1 rotate one it is small
Angle, so that Physical Experiment optical lever mirror assembly be driven to rotate corresponding angle, such incident ray enters reflecting mirror
In component 4, and the roundtrip between two mirror surfaces 42 in mirror assembly 4, angle of reflection is formed, just this small angle position
Moving amplification becomes biggish displacement of the lines.
The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the scope of the claims of the utility model.
Claims (5)
1. a kind of physical teaching aid Experimental Optical lever, including preceding footing (1), rear foot fulcrum (2), crossbeam (3) and reflection microscope group
Part (4) is connected with support rod (5) between the rear foot fulcrum (2) and crossbeam (3), and the preceding footing (1) is located at crossbeam (3)
Lower part, it is characterised in that: the mirror assembly (4) is located above crossbeam (3), and including two columns being oppositely arranged (41)
With two mirror surfaces being oppositely arranged (42), Damping rotation shaft A (43) are fixedly installed in the inside that column (41) upper end is oppositely arranged,
The left and right sides of the Damping rotation shaft A (43) is fixedly installed connecting rod (44), and the left and right sides of the mirror surface (42) is fixed
It is arranged Damping rotation shaft B (45), it is fixed by setting connecting rod (44) between the Damping rotation shaft B (45) and Damping rotation shaft A (43)
Connection.
2. a kind of physical teaching aid Experimental Optical lever according to claim 1, it is characterised in that: in the mirror surface (42)
The height of any one is greater than another height.
3. a kind of physical teaching aid Experimental Optical lever according to claim 1, it is characterised in that: on the support rod (5)
Scale (51) are arranged in face, and setting point corresponding with preceding footing (1) is used as support rod (5) high scale on the crossbeam (3)
(51) starting point.
4. a kind of physical teaching aid Experimental Optical lever according to claim 1, it is characterised in that: the two of the crossbeam (3)
Side is connected with bracing wire (6), and the other end of the bracing wire (6) connects counterweight (7).
5. a kind of physical teaching aid Experimental Optical lever according to claim 4, it is characterised in that: the counterweight (7) is internal
Inlay setting magnet (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317778.9U CN208507060U (en) | 2018-03-01 | 2018-03-01 | A kind of physical teaching aid Experimental Optical lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317778.9U CN208507060U (en) | 2018-03-01 | 2018-03-01 | A kind of physical teaching aid Experimental Optical lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507060U true CN208507060U (en) | 2019-02-15 |
Family
ID=65295039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820317778.9U Expired - Fee Related CN208507060U (en) | 2018-03-01 | 2018-03-01 | A kind of physical teaching aid Experimental Optical lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507060U (en) |
-
2018
- 2018-03-01 CN CN201820317778.9U patent/CN208507060U/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: 20190215 Termination date: 20210301 |