CN205122030U - Experimental device about physics mechanics - Google Patents
Experimental device about physics mechanics Download PDFInfo
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- CN205122030U CN205122030U CN201520827039.0U CN201520827039U CN205122030U CN 205122030 U CN205122030 U CN 205122030U CN 201520827039 U CN201520827039 U CN 201520827039U CN 205122030 U CN205122030 U CN 205122030U
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- supporting rod
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Abstract
The utility model belongs to the technical field of the physical experiment and an experimental device about physics mechanics is disclosed, including experimental device, experimental device includes fixed plate, weight box, flexible bracing piece, scale lever, connecting rod and regulator of level, the weight box is all installed to fixed plate upper end both sides, be equipped with neatly arranged weight identical in quality in the weight box, the weight upper end all is equipped with the round hole, flexible bracing piece is installed on the fixed plate, the scale lever runs through to be installed in flexible bracing piece both sides, scale lever both sides all with connecting rod fixed connection, the regulator of level is installed to the connecting rod, the couple is all installed to scale lever lower extreme both sides, the couple links to each other with the weight through the round hole. The utility model discloses a height of scale lever can be adjusted to flexible bracing piece, and convenient to use person carries out height -adjusting according to oneself needs, through the regulator of level, can calibrate before at the instrumentation, avoids bringing experimental error.
Description
Technical field
The utility model relates to a kind of experiment equipment, is specifically related to a kind of experiment equipment about physical mechanics, belongs to technical field of physical experiment.
Background technology
Lever divides again effort lever and laborsaving lever, and lever principle is also known as " lever equilibrium condition ".Make lever balance, size must be equal to act on two moments on the lever product of the arm of force (power with).That is: power × power arm=resistance × resistance arm, is expressed as F1L1=F2L2 by algebraic expression.In formula, F1 represents power, and L1 represents power arm, and F2 represents resistance, and L2 represents resistance arm.Can find out from above formula, make lever reach balance, power arm is several times of resistance arm, and power is exactly the part of resistance.Ancient Greek scientist Archimedes has such well-known saying spread for a long time: " to my fulcrum, I just can lever up the whole earth! ", the words says lever principle.Archimedes proposes lever principle the earliest in " balance of opinion planar graph " book.First he be used as some experimental knowledgees in lever practical application " self evident axiom ", then from these axioms, uses geometry by tight logical argumentation, drawn lever principle.These axioms are: (1) hangs up equal weight at the two ends of weightless bar from the distance that fulcrum is equal, and they will balance; (2) hang up unequal weight at the two ends of weightless bar from the distance that fulcrum is equal, heavy one end will have a down dip; (3) hang up equal weight at the two ends of weightless bar from the unequal distance of fulcrum, one end of distance will have a down dip; The effect of (4) weights can with several equally distributed weight be used for replace, as long as the position of center of gravity remains unchanged.On the contrary, the weight that several equally distributed weight can be suspended on their center of gravity place with replaces the center of gravity of (5) similar fitgures to distribute in a similar manner
In prior art, fulcrum can not move, movement be the position of both sides counterweight at lever distance center fulcrum, and the scale on the both sides that detect by an unaided eye, inconvenient operation, and, frequent mobile counterweight can cause counterbalance mass impaired, cause experiment measuring inaccurate, for this reason, we propose a kind of experiment equipment about physical mechanics.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, a kind of experiment equipment about physical mechanics is provided, pass through telescopic supporting rod, the height of scale lever can be regulated, be convenient to user and carry out adjustment height according to the needs of oneself, pass through level governor, can calibrate before use instrument, avoid bringing experimental error, pass through universal rolling wheel, experiment equipment can be moved freely, reduce the labor capacity of user, pass through holding brake device, when carrying out Physical Experiment, universal rolling wheel is fixed, prevent from universal rolling wheel slip from affecting experiment to carry out, effectively can solve the problem in background technology.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
The utility model provides a kind of experiment equipment about physical mechanics, comprise experiment equipment, described experiment equipment comprises fixed head, Weight box, telescopic supporting rod, scale lever, connecting link and level governor, both sides, described fixed head upper end are all provided with Weight box, the counterweight that proper alignment is identical in quality is provided with in described Weight box, described counterweight upper end is equipped with circular hole, described telescopic supporting rod is arranged on fixed head, described scale lever runs through and is arranged on telescopic supporting rod both sides, described scale lever both sides are all fixedly connected with connecting link, described connecting link is provided with level governor, both sides, described scale lever lower end are all provided with hook, described hook is connected with counterweight by circular hole.
As a kind of optimal technical scheme of the present utility model, described scale lever upper end is provided with the first screw of marshalling.
As a kind of optimal technical scheme of the present utility model, described telescopic supporting rod upper end is provided with the second screw, and described first screw is screwed with the second screw and is connected.
As a kind of optimal technical scheme of the present utility model, be provided with chute in described telescopic supporting rod, described trough width is slightly larger than scale lever width.
As a kind of optimal technical scheme of the present utility model, described fixed head lower end is provided with universal rolling wheel, and described universal rolling wheel is provided with holding brake device.
The beneficial effect that the utility model reaches is: a kind of experiment equipment about physical mechanics, pass through telescopic supporting rod, the height of scale lever can be regulated, be convenient to user and carry out adjustment height according to the needs of oneself, pass through level governor, can calibrate before use instrument, avoid bringing experimental error, pass through universal rolling wheel, experiment equipment can be moved freely, reduce the labor capacity of user, pass through holding brake device, when carrying out Physical Experiment, universal rolling wheel is fixed, prevent from universal rolling wheel slip from affecting experiment to carry out, easy to use.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.
In the accompanying drawings:
Fig. 1 is a kind of experiment equipment one-piece construction schematic diagram about physical mechanics described in the utility model embodiment;
Fig. 2 is a kind of experiment equipment telescopic supporting rod inner structure schematic diagram about physical mechanics described in the utility model embodiment;
Number in the figure: 1, experiment equipment; 2, fixed head; 3, holding brake device; 4, universal rolling wheel; 5, Weight box; 6, telescopic supporting rod; 7, counterweight; 8, connecting link; 9, level governor; 10, screw; 11, the first screw; 12, chute; 13, scale lever; 14, link up with; 15, the second screw.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment: refer to Fig. 1-2, a kind of experiment equipment about physical mechanics of the utility model, comprise experiment equipment 1, described experiment equipment 1 comprises fixed head 2, Weight box 5, telescopic supporting rod 6, scale lever 13, connecting link 8 and level governor 9, both sides, described fixed head 2 upper end are all provided with Weight box 5, proper alignment counterweight identical in quality 7 is provided with in described Weight box 5, described counterweight 7 upper end is equipped with circular hole, described telescopic supporting rod 6 is arranged on fixed head 2, described scale lever 13 runs through and is arranged on telescopic supporting rod 6 both sides, described scale lever 13 both sides are all fixedly connected with connecting link 8, described connecting link 8 is provided with level governor 9, both sides, described scale lever 13 lower end are all provided with hook 14, described hook 14 is connected with counterweight 7 by circular hole.
Described scale lever 13 upper end is provided with the first screw 11 of marshalling, described telescopic supporting rod 6 upper end is provided with the second screw 15, described first screw 11 is fixedly connected with by screw 10 with the second screw 15, chute 12 is provided with in described telescopic supporting rod 6, described chute 12 width is slightly larger than scale lever 13 width, described fixed head 2 lower end is provided with universal rolling wheel 4, by universal rolling wheel 4, experiment equipment 1 can be moved freely, reduce the labor capacity of user, described universal rolling wheel 4 is provided with holding brake device 3, by holding brake device 3, when carrying out Physical Experiment, universal rolling wheel 4 is fixed, prevent from universal rolling wheel 4 slip from affecting experiment to carry out.
It should be noted that, the utility model is a kind of experiment equipment about physical mechanics, during use, first by universal rolling wheel 4, experiment equipment 1 is moved to applicable position, be fixed by holding brake device 3 pairs of universal rolling wheels 4 again, regulate the height of Telescopic rotating bar 6 again, then calibrated by level governor 9 pairs of experimental apparatuss 1, by increase counterweight 7 or shift scale lever 13, lever principle is verified afterwards.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the experiment equipment about physical mechanics, comprise experiment equipment (1), it is characterized in that, described experiment equipment (1) comprises fixed head (2), Weight box (5), telescopic supporting rod (6), scale lever (13), connecting link (8) and level governor (9), described fixed head (2) both sides, upper end are all provided with Weight box (5), proper alignment counterweight identical in quality (7) is provided with in described Weight box (5), described counterweight (7) upper end is equipped with circular hole, described telescopic supporting rod (6) is arranged on fixed head (2), described scale lever (13) is run through and is arranged on telescopic supporting rod (6) both sides, described scale lever (13) both sides are all fixedly connected with connecting link (8), described connecting link (8) is provided with level governor (9), described scale lever (13) both sides, lower end are all provided with hook (14), described hook (14) is connected with counterweight (7) by circular hole.
2. a kind of experiment equipment about physical mechanics according to claim 1, is characterized in that, described scale lever (13) upper end is provided with first screw (11) of marshalling.
3. a kind of experiment equipment about physical mechanics according to claim 1 and 2, it is characterized in that, described telescopic supporting rod (6) upper end is provided with the second screw (15), and described first screw (11) is fixedly connected with by screw (10) with the second screw (15).
4. a kind of experiment equipment about physical mechanics according to claim 1, is characterized in that, is provided with chute (12) in described telescopic supporting rod (6), and described chute (12) width is slightly larger than scale lever (13) width.
5. a kind of experiment equipment about physical mechanics according to claim 1, is characterized in that, described fixed head (2) lower end is provided with universal rolling wheel (4), and described universal rolling wheel (4) is provided with holding brake device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827039.0U CN205122030U (en) | 2015-10-26 | 2015-10-26 | Experimental device about physics mechanics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827039.0U CN205122030U (en) | 2015-10-26 | 2015-10-26 | Experimental device about physics mechanics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122030U true CN205122030U (en) | 2016-03-30 |
Family
ID=55577616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520827039.0U Expired - Fee Related CN205122030U (en) | 2015-10-26 | 2015-10-26 | Experimental device about physics mechanics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122030U (en) |
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2015
- 2015-10-26 CN CN201520827039.0U patent/CN205122030U/en not_active Expired - Fee Related
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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: 20160330 Termination date: 20171026 |