CN204117438U - A kind of centrifugal force demonstration instrument for teaching - Google Patents
A kind of centrifugal force demonstration instrument for teaching Download PDFInfo
- Publication number
- CN204117438U CN204117438U CN201420360689.4U CN201420360689U CN204117438U CN 204117438 U CN204117438 U CN 204117438U CN 201420360689 U CN201420360689 U CN 201420360689U CN 204117438 U CN204117438 U CN 204117438U
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- teaching
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Abstract
The utility model relates to a kind of centrifugal force demonstration instrument for teaching, comprise base, the riser be arranged on base, rope, be connected to weight bottom rope, be located at the loop bar of rope outside, be arranged on the bearing of riser inside, in the chute of described base, slide block is installed, described base is provided with solenoid near slide block place, described base is provided with pole, motor, described motor and loop bar junction are housed at pole top and are provided with clutch coupling, the side of described riser is provided with transformer.The utility model is reasonable in design, structure is simple, can be obtained by different modes circular motion external force, solenoid accelerates fast, can show the operating process of experiment very intuitively, and student can be allowed to see experimental phenomena clearly, experiment dramatic, be conducive to student memory and understanding, improve quality of instruction and the student enthusiasm for study, so the utility model has higher promotional value and social value.
Description
Technical field
The utility model relates to teaching equipment field, particularly relates to a kind of centrifugal force demonstration instrument for teaching.
Background technology
At present, along with deepening constantly of education theory, experimental teaching, as the direct knowledge of natural environment of student, the important tool of understanding natural things development and change basic law, the important component part as teaching naturally, is just more and more subject to people's attention.Natural experiment use in teaching must be got well, and is not only conducive to student and obtains knowledge better, and to raising student's aspects technical ability and ability, cultivating learning interest and hobby and forming good quality of science etc. has and important effect.Therefore select and used appropriate experiment teaching aid, just becoming key one ring of first-class laboratory.Along with deepening continuously of the natural reform in education, the content of courses is also in continuous change.Traditional experiment teaching aid has not caught up with the needs of teaching material change, much inapplicable in teaching material, is badly in need of supplementing new instruments used for education and experimental apparatus, and this is the needs of the reform in education, is the needs developed education.
Centrifugal force is the common phenomenon in science, education, production technology and daily life.Newton once devised famous " bucket experiment " by this phenomenon, according to this phenomenon, newton also courageously, has successfully foretold that the earth is oblate spheroid, and this is two large examples very famous in the history of science.In the experimental teaching in laboratory, do object centrifugal force at present, the experiment teaching aid of centripetal force only has draught line and demonstration thing, demonstration thing is fixed on draught line one end, catch the draught line other end that demonstration thing is moved in a circle with certain radius with hand, this kind of experiment teaching aid can only demonstrate roughly the general procedure of concrete motion, accurately cannot demonstrate the relation between various parameter in object centrifugal force, centripetal force education experiment, for the direction of motion that any moment is definite, theoretically can only obtain, cannot experimentally verify.
Utility model content
The utility model, in order to overcome deficiency of the prior art, provides a kind of centrifugal force demonstration instrument for teaching.
The utility model is achieved through the following technical solutions:
A kind of centrifugal force demonstration instrument for teaching, comprise base, the riser be arranged on base, rope, be connected to weight bottom rope, be located at the loop bar of rope outside, be arranged on the bearing of riser inside, in the chute of described base, slide block is installed, described base is provided with solenoid near slide block place, described base is provided with pole, motor, described motor and loop bar junction are housed at pole top and are provided with clutch coupling, the side of described riser is provided with transformer.
As optimal technical scheme of the present utility model, the riser surface being positioned at weight side is provided with blank sheet of paper.
As optimal technical scheme of the present utility model, the surface of described weight is with the iron filings being stained with pigment.
As optimal technical scheme of the present utility model, described clutch coupling is power clutch.
Compared with prior art, the beneficial effects of the utility model are: the utility model is reasonable in design, structure is simple, can be obtained the external force needed for circular motion by different modes, and solenoid accelerates fast, the operating process of experiment can be shown very intuitively, and student can be allowed to see experimental phenomena clearly, experiment dramatic, is conducive to student memory and understanding, improve quality of instruction and the student enthusiasm for study, so the present invention has higher promotional value and social value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is left view of the present utility model.
In figure: 1-base; 2-rope; 3-riser; 4-bearing; 5-weight; 6-solenoid; 7-slide block; 8-pole; 9-transformer; 20-loop bar; 80-motor; 81-clutch coupling.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1 and Fig. 2, Fig. 1 is structural representation of the present utility model, and Fig. 2 is left view of the present utility model.
Described a kind of centrifugal force demonstration instrument for teaching, comprise base 1, the riser 3 be arranged on base 1, rope 2, be connected to weight 5 bottom rope 2, be located at the loop bar 20 of rope 2 outside, be arranged on the bearing 4 of riser 3 inside, in the chute of described base 1, slide block 7 is installed, described base 1 is provided with solenoid 6 near slide block 7 place, solenoid 6 produces electromagnetic force after being energized, acting force is produced to slide block 7, slide block 7 accelerated motion and weight 5 are collided, makes weight 5 create certain initial velocity.
Described base 1 is provided with pole 8, motor 80 is housed at pole 8 top, described motor 80 is provided with clutch coupling 81 with loop bar 20 junction, described clutch coupling 81 is power clutch, when using collision to produce initial velocity, motor 80 is made by holdback clutch 81, dropping to minimum for colliding the impact had an impact, when needing to produce different velocities of rotation, can be obtained by motor 80 effect.The side of described riser 3 is provided with transformer 9, and riser 3 surface being positioned at weight 5 side is provided with blank sheet of paper, and the surface of described weight 5 is with the iron filings being stained with pigment.When reaching required velocity of rotation, carry out power operation to transformer 9, the magnetic force of weight 5 disappears, and the iron filings of attachment fly out on blank sheet of paper, produce the track of motion.
The utility model is reasonable in design, structure is simple, can be obtained by different modes circular motion external force, solenoid accelerates fast, can show the operating process of experiment very intuitively, and student can be allowed to see experimental phenomena clearly, experiment dramatic, be conducive to student memory and understanding, improve quality of instruction and the student enthusiasm for study, so the present invention has higher promotional value and social value.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a centrifugal force demonstration instrument for teaching, comprise base (1), be arranged on the riser (3) on base (1), rope (2), be connected to the weight (5) of rope (2) bottom, be located at the loop bar (20) that rope (2) is outside, be arranged on the bearing (4) that riser (3) is inner, it is characterized in that: slide block (7) is installed in the chute of described base (1), described base (1) is upper is provided with solenoid (6) near slide block (7) place, described base (1) is provided with pole (8), at pole (8) top, motor (80) is housed, described motor (80) and loop bar (20) junction are provided with clutch coupling (81), the side of described riser (3) is provided with transformer (9).
2. a kind of centrifugal force demonstration instrument for teaching according to claim 1, is characterized in that: riser (3) surface being positioned at weight (5) side is provided with blank sheet of paper.
3. a kind of centrifugal force demonstration instrument for teaching according to claim 1, is characterized in that: the surface of described weight (5) is with the iron filings being stained with pigment.
4. a kind of centrifugal force demonstration instrument for teaching according to claim 1, is characterized in that: described clutch coupling (81) is power clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360689.4U CN204117438U (en) | 2014-07-02 | 2014-07-02 | A kind of centrifugal force demonstration instrument for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360689.4U CN204117438U (en) | 2014-07-02 | 2014-07-02 | A kind of centrifugal force demonstration instrument for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117438U true CN204117438U (en) | 2015-01-21 |
Family
ID=52334728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420360689.4U Expired - Fee Related CN204117438U (en) | 2014-07-02 | 2014-07-02 | A kind of centrifugal force demonstration instrument for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117438U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575186A (en) * | 2015-01-30 | 2015-04-29 | 王振环 | Study apparatus of circular motion |
| CN108172079A (en) * | 2018-02-26 | 2018-06-15 | 河南工学院 | A kind of kinetics research device |
| CN108648570A (en) * | 2018-06-20 | 2018-10-12 | 南京方易日辰电子科技有限公司 | A kind of physics teaching centrifugal force demonstration device |
-
2014
- 2014-07-02 CN CN201420360689.4U patent/CN204117438U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575186A (en) * | 2015-01-30 | 2015-04-29 | 王振环 | Study apparatus of circular motion |
| CN104575186B (en) * | 2015-01-30 | 2018-03-13 | 周晶 | Circular motion research device |
| CN108172079A (en) * | 2018-02-26 | 2018-06-15 | 河南工学院 | A kind of kinetics research device |
| CN108648570A (en) * | 2018-06-20 | 2018-10-12 | 南京方易日辰电子科技有限公司 | A kind of physics teaching centrifugal force demonstration device |
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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: 20150121 Termination date: 20160702 |