CN202084224U - Friction force testing instrument - Google Patents
Friction force testing instrument Download PDFInfo
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- CN202084224U CN202084224U CN2011201885112U CN201120188511U CN202084224U CN 202084224 U CN202084224 U CN 202084224U CN 2011201885112 U CN2011201885112 U CN 2011201885112U CN 201120188511 U CN201120188511 U CN 201120188511U CN 202084224 U CN202084224 U CN 202084224U
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- testing
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- spring
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Abstract
The utility model discloses a friction force testing instrument. The friction force testing instrument comprises a fixing body (1), and a connecting rod (3) of a testing body (6), which is connected with the fixing body (1) through a hinge (2). The connecting rod (3) is fixedly connected with a spring seat (4), the spring seat (4) is connected with one end of a spring (5), the other end of the spring is connected with one end of a thin rope (11), and the other end of the thin rope (11) is connected with a hook (7); the hook (7) is connected with an experiment body (8); a renewable friction force testing standard plate (10) is arranged in the middle of the testing body (6); and a vernier (9) is arranged at the lower part of the testing body (6). When a test is carried out, the experiment body (8) is pulled to a standard testing point and aligns with the start mark (12) of the vernier (9); and after released, the experiment body (8) slides on the friction force testing standard plate (10), thus the friction force between the experiment body (8) and the friction force testing standard plate (10) can be tested out conveniently, and the specific data of the friction force is marked through the vernier (9) arranged at the lower part of the testing body (6), so that the purpose that experiment demonstration is used for understanding the friction force in physical experiment is achieved.
Description
Technical field
The utility model relates to a kind of physical experiment apparatus, relates in particular to a kind of friction testing instrument.
Background technology
In physics teaching in secondary school, the classification learning of power has a variety of, but in the actual learning process, understand the comparison difficulty of getting up, need help understand by the demonstration of experiment, especially in the learning process of middle school friction force, do not have suitable experimental apparatus, make the student when friction force is learnt, produce certain deviation.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, conveniently understands Physical Experiment friction testing instrument.
The technical solution of the utility model is a kind of friction testing instrument, it comprises fixed body 1, with the connecting link 3 on the test bodies 6 that described fixed body 1 is connected by hinge 2, it is characterized in that: described connecting link 3 fixedly connected spring bases 4, described spring base 4 is connected with an end of a spring 5, the other end of described spring 5 is connected with an end of a cord 11, the other end of described cord 11 is connected with a hook 7, described hook 7 is connected with experiment body 8, be provided with removable testing friction power on-gauge plate 10 at the middle part of described test bodies 6, be provided with vernier scale 9 in the bottom of described test bodies 6.
The technical solution of the utility model also has described vernier scale 9 to be slidingly connected with described test bodies 6.
The beneficial effects of the utility model are by test bodies 6 upper connecting rods 3 fixedly connected spring bases 4, this spring base 4 and with spring 5, cord 11, hook 7, experiment body 8 connects successively, in addition at the middle part of test bodies 6 removable testing friction power on-gauge plate 10, during test, move experiment body 8 to the standard testing point, and align with the start mark 12 of vernier scale 9, after the relieving, experiment body 8 is slided on testing friction power on-gauge plate 10, like this, can test out the friction force between experiment body 8 and the testing friction power on-gauge plate 10 easily, and by the vernier scale 9 that is arranged on test bodies 6 bottoms its concrete frictional force data is marked, realized the purpose of in the Physical Experiment understanding of friction force being helped understand by experimental demonstration.
Accompanying drawing is said figure
Fig. 1 is a structural representation of the present utility model
Among Fig. 11, fixed body, 2, hinge, 3, connecting link, 4, spring base, 5, spring, 6, test bodies, 7, hook, 8, experiment body, 9, vernier scale, 10, testing friction power on-gauge plate, 11, cord, 12, start mark.
Embodiment
According to shown in Figure 1, the utility model relates to a kind of friction testing instrument, it comprises fixed body 1, with the connecting link 3 on the test bodies 6 that described fixed body 1 is connected by hinge 2, described connecting link 3 fixedly connected spring bases 4, described spring base 4 is connected with an end of a spring 5, the other end of described spring 5 is connected with an end of a cord 11, the other end of described cord 11 is connected with a hook 7, described hook 7 is connected with experiment body 8, be provided with removable testing friction power on-gauge plate 10 at the middle part of described test bodies 6, be provided with vernier scale 9 in the bottom of described test bodies 6, described vernier scale 9 is slidingly connected with described test bodies 6, and during test, described experiment body 8 aligns with the start mark 12 of described vernier scale 9; By the 3 fixedly connected spring bases 4 of the connecting link on the test bodies 6, this spring base 4 and with spring 5, cord 11, hook 7, experiment body 8 connects successively, in addition at the middle part of test bodies 6 removable testing friction power on-gauge plate 10, during test, move experiment body 8 to the standard testing point, and align with the start mark 12 of vernier scale 9, after the relieving, under the effect of spring restoring force, experiment body 8 is slided on testing friction power on-gauge plate 10, because experiment body 8 is identical, only change testing friction power on-gauge plate 10, because the degree of roughness difference of testing friction power on-gauge plate 10, friction factor are also different, the position that experiment body 8 is replied on testing friction power on-gauge plate 10 is also different, like this, can test out the friction force between experiment body 8 and the different testing friction power on-gauge plates 10 easily, and its concrete frictional force data be marked, realize the purpose of in the Physical Experiment understanding of friction force being helped understand by experimental demonstration by the vernier scale 9 that is arranged on test bodies 6 bottoms.
Claims (2)
1. friction testing instrument, it comprises fixed body (1), with the connecting link (3) on the test bodies (6) that described fixed body (1) is connected by hinge (2), it is characterized in that: the fixedly connected spring base of described connecting link (3) (4), described spring base (4) is connected with an end of a spring (5), the other end of described spring (5) is connected with an end of a cord (11), the other end of described cord (11) is connected with a hook (7), described hook (7) is connected with experiment body (8), be provided with removable testing friction power on-gauge plate (10) at the middle part of described test bodies (6), be provided with vernier scale (9) in the bottom of described test bodies (6).
2. friction testing instrument according to claim 1 is characterized in that: described vernier scale (9) is slidingly connected with described test bodies (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201885112U CN202084224U (en) | 2011-05-25 | 2011-05-25 | Friction force testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201885112U CN202084224U (en) | 2011-05-25 | 2011-05-25 | Friction force testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084224U true CN202084224U (en) | 2011-12-21 |
Family
ID=45344847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201885112U Expired - Fee Related CN202084224U (en) | 2011-05-25 | 2011-05-25 | Friction force testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084224U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884456A (en) * | 2014-04-04 | 2014-06-25 | 南京林业大学 | Nail-holding ability measurement device for wood-structure building component |
| CN104807565A (en) * | 2015-04-27 | 2015-07-29 | 河北建筑工程学院 | Force measuring device for steel tape special spring and measuring method thereof |
| CN108399837A (en) * | 2017-04-25 | 2018-08-14 | 孙欣雅 | A kind of interested testing device of demonstration friction action |
-
2011
- 2011-05-25 CN CN2011201885112U patent/CN202084224U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884456A (en) * | 2014-04-04 | 2014-06-25 | 南京林业大学 | Nail-holding ability measurement device for wood-structure building component |
| CN103884456B (en) * | 2014-04-04 | 2015-10-28 | 南京林业大学 | Timber buildings component nail-holding ability determinator |
| CN104807565A (en) * | 2015-04-27 | 2015-07-29 | 河北建筑工程学院 | Force measuring device for steel tape special spring and measuring method thereof |
| CN104807565B (en) * | 2015-04-27 | 2017-07-18 | 河北建筑工程学院 | A kind of steel tape special purpose spring device for measuring force and its measuring method |
| CN108399837A (en) * | 2017-04-25 | 2018-08-14 | 孙欣雅 | A kind of interested testing device of demonstration friction action |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20120525 |