CN210123333U - Elasticity coefficient measuring device for physical experiments - Google Patents
Elasticity coefficient measuring device for physical experiments Download PDFInfo
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- CN210123333U CN210123333U CN201921016003.9U CN201921016003U CN210123333U CN 210123333 U CN210123333 U CN 210123333U CN 201921016003 U CN201921016003 U CN 201921016003U CN 210123333 U CN210123333 U CN 210123333U
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- 230000000694 effects Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000005483 Hooke's law Effects 0.000 description 2
- 101100495270 Caenorhabditis elegans cdc-26 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model discloses an elasticity coefficient measuring device for physical experiments, which comprises a fixed frame, an experiment spring and a tray, wherein one end of the fixed frame is fixedly connected with a base, one end of the base is symmetrically and fixedly connected with a telescopic rod, one end of the telescopic rod is fixedly connected with a non-slip mat, one side of the fixed frame is fixedly connected with a first hook, and one end of the first hook is fixedly connected with the experiment spring; this elasticity coefficient survey device for physics experiments, through being provided with the experiment spring, pointer and fixed pulley, through setting the experiment spring to the horizontal direction, can eliminate the influence of the gravity of experiment spring self to the experiment, through with experiment spring and scale setting on same horizontal plane, the change process of observation experiment that can be more clear, be provided with the pointer through the one side at the experiment spring, reading experimental data that can be more accurate, reduce the experimental error, change tensile size through the weight that sets up basis weight, more conveniently handle experimental data.
Description
Technical Field
The utility model relates to an experiment teaching aid technical field, in particular to elasticity coefficient survey device for physics experiments.
Background
Hooke's law is a basic law in the theory of mechanical elasticity, and is expressed as follows: in the elastic coefficient measuring device provided by the present hooke's law demonstration experiment, a test spring is placed perpendicular to a tester, although the test spring has the advantages of being vivid and intuitive, easy to operate by teachers and easy to understand by students, the defects of the test spring are obvious, firstly, the test spring is repeatedly weighted and measured, so that the experiment operation is mechanical and stiff, the study interest and enthusiasm of students cannot be well excited, and the more important point is that the length of the spring is not completely caused by the gravity of a weight due to the fact that the spring has the weight, so that the experiment error is large, the tension meter for some experiment demonstration experiments changes the size of the gravity, and the tension meter changes the size of the tension force unstably and cannot accurately measure the experiment data.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an elasticity coefficient survey device for physics experiments can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an elasticity coefficient measuring device for physical experiments comprises a fixed frame, an experiment spring and a tray, wherein one end of the fixed frame is fixedly connected with a base, one end of the base is symmetrically and fixedly connected with a telescopic rod, one end of the telescopic rod is fixedly connected with an anti-skid pad, one side of the fixed frame is fixedly connected with a first hook, one end of the first hook is fixedly connected with the experiment spring, one side of the experiment spring is fixedly provided with a pointer, one end of the experiment spring is fixedly connected with a second hook, one end of the second hook is fixedly connected with a tension rope, one end of the tension rope is fixedly connected with the tray, the tension rope between the tray and the second hook is slidably connected with a fixed pulley, one end of the fixed pulley is rotatably connected with a fixed shaft, one end of the fixed shaft is fixedly connected on the fixed frame, one side of the first hook is fixedly provided with, the one end fixedly connected with scale of support frame, the one end activity of scale is provided with the experiment spring, the fixed weight box that is provided with in one side of support frame, a plurality of weight and a tweezers have been placed to the inside of weight box.
Preferably, the number and specification of the weights are two 5g, two 10g, two 20g, two 50g and two 100 g.
Preferably, the pointer has an inverted triangle structure.
Preferably, the pointer is located at a side close to the second hook.
Preferably, the pointer at the beginning of the test spring points to the position of 0 of the scale.
Preferably, the surface of the circular wheel groove of the fixed pulley and the surface of the scale are smooth.
Compared with the prior art, the utility model discloses following beneficial effect has: this elasticity coefficient survey device for physics experiments, through being provided with the experiment spring, pointer and fixed pulley, through setting the experiment spring to the horizontal direction, can eliminate the influence of the gravity of experiment spring self to the experiment, through with experiment spring and scale setting on same horizontal plane, the change process of observation experiment that can be more clear, be provided with the pointer through the one side at the experiment spring, reading experimental data that can be more accurate, reduce the experimental error, change tensile size through the weight that sets up basis weight, more conveniently handle experimental data.
Drawings
Fig. 1 is a schematic view of the overall structure of an elasticity coefficient measuring device for physical experiments according to the present invention;
FIG. 2 is a schematic structural plan view of a pointer of the elastic modulus measuring device for physical experiments according to the present invention;
in the figure: 1. a fixed mount; 2. a base; 3. a telescopic rod; 4. a non-slip mat; 5. a weight box; 6. a weight; 7. tweezers; 8. a support frame; 9. a first hook; 10. an experimental spring; 11. a second hook; 12. a tension rope; 13. a scale; 14. a fixed shaft; 15. a fixed pulley; 16. a tray; 17. a pointer.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-2, an elasticity coefficient measuring device for physical experiments comprises a fixed frame 1, an experiment spring 10 and a tray 16, wherein one end of the fixed frame 1 is fixedly connected with a base 2, one end of the base 2 is symmetrically and fixedly connected with a telescopic rod 3, one end of the telescopic rod 3 is fixedly connected with an anti-slip mat 4, one side of the fixed frame 1 is fixedly connected with a first hook 9, one end of the first hook 9 is fixedly connected with the experiment spring 10, one side of the experiment spring 10 is fixedly provided with a pointer 17, one end of the experiment spring 10 is fixedly connected with a second hook 11, one end of the second hook 11 is fixedly connected with a tension rope 12, one end of the tension rope 12 is fixedly connected with the tray 16, the tension rope 12 between the tray 16 and the second hook 11 is slidably connected with a fixed pulley 15, one end of the fixed pulley 15 is rotatably connected with a fixed shaft 14, the one end fixed connection of fixed axle 14 is in on the mount 1, the fixed support frame 8 that is provided with in one side of first couple 9, the one end fixedly connected with scale 13 of support frame 8, the one end activity of scale 13 is provided with experiment spring 10, the fixed weight box 5 that is provided with in one side of support frame 8, a plurality of weight 6 and a tweezers 7 have been placed to the inside of weight box 5.
In this embodiment, the number and the specification of the weights 6 are preferably two 5g, two 10g, two 20g, two 50g, and two 100 g.
In this embodiment, preferably, the pointer 17 has an inverted triangle structure.
In this embodiment, it is preferable that the pointer 17 is located on a side close to the second hook 11.
In this embodiment, it is preferable that the pointer 17 at the beginning of the experimental spring 10 is pointed to the position 0 of the scale 13.
In this embodiment, it is preferable that the surface of the circular wheel groove of the fixed pulley (15) and the surface of the scale 13 are smooth.
It should be noted that, the utility model relates to an elasticity coefficient measuring device for physical experiment, when in use, according to the height of the device itself, adjust the telescopic rod 3 to adjust the fixed mount 1 to a suitable height, clamp a weight 6 with tweezers 7 and place in the tray 16, the tray 16 pulls the tension rope 12 to move, the tension rope 12 pulls the second hook 11 to move, the second hook 11 drives the experiment spring 10 to move, the experiment spring 10 drives the pointer 17 to move, according to the indication position of the pointer 17, read the data on the scale 13, change the number or specification of the weight 6, repeat the above steps, record the data, finally, process the experiment data, the elasticity coefficient measuring device for physical experiment, through being provided with the experiment spring 10, the pointer 17 and the fixed pulley 15, through setting the experiment spring 10 to the horizontal direction, can eliminate the influence of the gravity of the experiment spring itself on the experiment, through setting up experiment spring 10 and scale 13 on same horizontal plane, the change process of observation experiment that can be more clear is provided with pointer 17 through the one side at experiment spring 10, and reading experiment data that can be more accurate reduces experimental error, changes tensile size through the weight 6 that sets up basis weight, more conveniently handles experiment data.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a coefficient of elasticity survey device for physics experiments, includes mount (1), experiment spring (10) and tray (16), its characterized in that: one end of the fixing frame (1) is fixedly connected with a base (2), one end of the base (2) is symmetrically and fixedly connected with a telescopic rod (3), one end of the telescopic rod (3) is fixedly connected with an anti-skid pad (4), one side of the fixing frame (1) is fixedly connected with a first hook (9), one end of the first hook (9) is fixedly connected with the experiment spring (10), one side of the experiment spring (10) is fixedly provided with a pointer (17), one end of the experiment spring (10) is fixedly connected with a second hook (11), one end of the second hook (11) is fixedly connected with a tension rope (12), one end of the tension rope (12) is fixedly connected with a tray (16), the tension rope (12) between the tray (16) and the second hook (11) is slidably connected with a fixed pulley (15), one end of the fixed pulley (15) is rotatably connected with a fixed shaft (14), the one end fixed connection of fixed axle (14) is in on mount (1), one side of first couple (9) is fixed and is provided with support frame (8), the one end fixedly connected with scale (13) of support frame (8), the one end activity of scale (13) is provided with experiment spring (10), one side of support frame (8) is fixed and is provided with weight box (5), a plurality of weight (6) and tweezers (7) have been placed to the inside of weight box (5).
2. The device for measuring elastic modulus for physical experiment according to claim 1, wherein: the number and the specification of the weights (6) are two 5g, two 10g, two 20g, two 50g and two 100 g.
3. The device for measuring elastic modulus for physical experiment according to claim 1, wherein: the pointer (17) is in an inverted triangle structure.
4. The device for measuring elastic modulus for physical experiment according to claim 1, wherein: the pointer (17) is positioned at one side close to the second hook (11).
5. The device for measuring elastic modulus for physical experiment according to claim 1, wherein: the pointer (17) at the beginning of the test spring (10) points to the 0 position of the scale (13).
6. The device for measuring elastic modulus for physical experiment according to claim 1, wherein: the surface of the circular wheel groove of the fixed pulley (15) and the surface of the scale (13) are smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921016003.9U CN210123333U (en) | 2019-07-02 | 2019-07-02 | Elasticity coefficient measuring device for physical experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921016003.9U CN210123333U (en) | 2019-07-02 | 2019-07-02 | Elasticity coefficient measuring device for physical experiments |
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| Publication Number | Publication Date |
|---|---|
| CN210123333U true CN210123333U (en) | 2020-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921016003.9U Expired - Fee Related CN210123333U (en) | 2019-07-02 | 2019-07-02 | Elasticity coefficient measuring device for physical experiments |
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| CN (1) | CN210123333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442986A (en) * | 2020-03-27 | 2020-07-24 | 河南中烟工业有限责任公司 | Method for detecting tensile property of cut tobacco |
-
2019
- 2019-07-02 CN CN201921016003.9U patent/CN210123333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442986A (en) * | 2020-03-27 | 2020-07-24 | 河南中烟工业有限责任公司 | Method for detecting tensile property of cut tobacco |
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Granted publication date: 20200303 |
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| CF01 | Termination of patent right due to non-payment of annual fee |