CN109493695A - A kind of physics teaching demonstration, test device - Google Patents
A kind of physics teaching demonstration, test device Download PDFInfo
- Publication number
- CN109493695A CN109493695A CN201811332325.4A CN201811332325A CN109493695A CN 109493695 A CN109493695 A CN 109493695A CN 201811332325 A CN201811332325 A CN 201811332325A CN 109493695 A CN109493695 A CN 109493695A
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- Prior art keywords
- test
- face
- drawer
- pedestal
- bracket
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Chemical & Material Sciences (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Analytical Chemistry (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of physics teaching demonstrations, test device, including pedestal, detection faces are equipped on the left of the top end face of pedestal, detection faces are to be obliquely installed, and detection faces are equipped with test chamber, are equipped with test board in test chamber, the top end face of test board is equipped with test surfaces, the top of test surfaces is placed with calibrated bolck, and the right-hand end of calibrated bolck is equipped with cotton rope, and cotton rope is equipped with dynamometer；It is equipped with the fixed pulley matched with detection faces in the middle part of the top end face of pedestal, bracket is equipped on the right side of the top end face of pedestal, the intracavity bottom of bracket is equipped with line roller, and line roller is rotatably connected on bracket by shaft, on the online roller of other end winding of cotton rope；The front end face of pedestal is equipped with the first drawer and the second drawer；The present invention passes through sliding of the calibrated bolck on test board, and the size of pulling force is read by dynamometer, thus analytical standard block stress condition and friction situation；By replacing different test boards, influence of the different materials to frictional force can be measured, compares study convenient for student.
Description
Technical field
The present invention relates to physics teaching field, specially a kind of physics teaching demonstration, test device.
Background technique
Physics is to study the subject of the motion of matter most typically rule and substance basic structure.As taking the lead for natural science
Subject, physics research become greatly to universe, as low as all substances such as elementary particle most basic forms of motion and rule
The Research foundation of other each natural branch of science.Its theoretical construct makes full use of mathematics as oneself working language, with
It tests as the sole criterion for examining theoretical correctness, it is a current most accurate natural science subject.
Mechanics is the science for studying substance mechanical movement rule.There are many levels for nature substance, from the universe body of cosmoscopic
System, macroscopical celestial body and conventional object, the particle carefully seen, fiber, crystal, to microcosmic molecule, atom, elementary particle.Usually
The mechanics of understanding is to study based on natural or artificial macroscopic objects.But due to interpenetrating for subject, also it is related to space sometimes
See or carefully see the object in even microcosmic each level and related rule.Mechanical movement that is, mechanical motion are substances when
Between, the change in location in space, including movement, rotation, flowing, deformation, vibration, fluctuation, diffusion etc., and balance or static, be
One such special circumstances.Mechanical movement is the most basic form of the motion of matter.
Many concepts, rule in physics teaching material, law are all to be introduced, exported and verified by testing, especially
In mechanics teaching, mechanical analysis, test are the difficult points in physics teaching, and the analysis of especially frictional force is even more difficult point.
Currently, the teaching aid that physics teaching field is lack of pertinence, most teacher can only carry out in such a way that photograph is originally explained and publicised
Teaching, relatively more abstract, student lacks the chance for experiment of starting again, and Faculty and Students are difficult to generate interaction, to bring to teaching
Certain difficulty, while increasing the learning difficulty of student.
Summary of the invention
The purpose of the present invention is to provide a kind of physics teaching demonstrations, test device, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
The top end face left side of a kind of physics teaching demonstration, test device, including pedestal, pedestal is equipped with detection faces, and detection faces are
It is obliquely installed, detection faces are equipped with test chamber, and test board is equipped in test chamber, and the top end face of test board is equipped with test surfaces, test
The top in face is placed with calibrated bolck, and the right-hand end of calibrated bolck is equipped with cotton rope, and cotton rope is equipped with dynamometer.
As the further technical solution of the present invention, cunning is determined equipped with what is matched with detection faces in the middle part of the top end face of pedestal
Wheel, the top end face right side of pedestal are equipped with bracket, and the intracavity bottom of bracket is equipped with line roller, and line roller is rotatably connected on bracket by shaft
On, on the online roller of other end winding of cotton rope.
As the further technical solution of the present invention, bracket is U-shaped structure.
As the further technical solution of the present invention, the periphery top of shaft is arranged with driven wheel of differential, bracket
Side top is embedded with transmission shaft, and transmission shaft is rotatably connected on bracket by bearing, the left-hand end of transmission shaft be equipped with it is driven
The drive bevel gear that bevel gear matches, the right-hand end of transmission shaft are equipped with eccentric disc, and the right-hand end side of eccentric disc is equipped with handle.
As the further technical solution of the present invention, the front end face of pedestal is equipped with the first drawer and the second drawer, and first
Drawer is located at the right side of test chamber, and the second drawer is located at the lower section of the first drawer and test chamber.
As the further technical solution of the present invention, the front end face of the first drawer is equipped with first in command's slot.
As the further technical solution of the present invention, the front end face of the second drawer is equipped with second handle slot.
As the further technical solution of the present invention, test surfaces are inclined surface, the inclinations angle of test surfaces and detection faces
Inclination angle is identical, and test surfaces and detection faces are in same inclined-plane.
Compared with prior art, the present invention is by sliding of the calibrated bolck on test board, and reads pulling force by dynamometer
Size, thus analytical standard block stress condition and friction situation；By replacing different test boards, can survey
Influence of the different materials to frictional force out compares study convenient for student；And it is respectively used to deposit by the first drawer and the second drawer
Calibrated bolck and test board are put, is prevented without using period, wet air corrodes calibrated bolck and test board, influences subsequent
Demonstrating effect.
Detailed description of the invention
Fig. 1 be a kind of physics teaching of the present invention demonstrate, the structural schematic diagram of the front view of test device；
Fig. 2 is that a kind of physics teaching of the present invention is demonstrated, this Cinderella of test device is the structural schematic diagram of sectional view；
Fig. 3 be a kind of physics teaching of the present invention demonstrate, the structural schematic diagram of the bracket of test device.
In figure: 1- pedestal, 2- detection faces, 3- test chamber, 4- test board, 5- test surfaces, 6- calibrated bolck, 7- cotton rope, 8- are surveyed
Power meter, 9- fixed pulley, 10- bracket, 11- line roller, 12- shaft, 13- driven wheel of differential, 14- drive bevel gear, 15- transmission shaft,
16- bearing, 17- eccentric disc, 18- handle, the first drawer of 19-, 20- first in command's slot, the second drawer of 21-, 22- second handle
Slot.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
Please refer to Fig. 1~3, a kind of physics teaching demonstration, test device, including pedestal 1, the top end face left side of the pedestal 1
Equipped with detection faces 2, the detection faces 2 are to be obliquely installed, and detection faces 2 are equipped with test chamber 3, are equipped with test in the test chamber 3
The top end face of plate 4, the test board 4 is equipped with test surfaces 5, and the test surfaces 5 are inclined surface, the inclination angle of test surfaces 5 and detection
The inclination angle in face 2 is identical, and in same inclined-plane, the top of test surfaces 5 is placed with calibrated bolck 6, described for test surfaces 5 and detection faces 2
The right-hand end of calibrated bolck 6 is equipped with cotton rope 7, and the cotton rope 7 is equipped with dynamometer 8, by slowly pulling cotton rope 7, to affect mark
Quasi- block 6, so that calibrated bolck 6 slides on test surfaces 5, and reads the size of pulling force by dynamometer 8, thus analytical standard block 6
Stress condition and friction situation；By replacing different test boards 4, different materials can be measured to frictional force
It influences, compares study convenient for student.
Embodiment 2
The present embodiment is to be further described on the basis of embodiment 1, is equipped with and detection faces 2 in the middle part of the top end face of the pedestal 1
The top end face right side of the fixed pulley 9 matched, pedestal 1 is equipped with bracket 10, and the bracket 10 is U-shaped structure, the inner cavity of bracket 10
Bottom is equipped with line roller 11, and the line roller 11 is rotatablely connected over the mount 10 by shaft 12, and the other end of the cotton rope 7 is wound around
On line roller 11, by the rotation of line roller 11, so that completing cotton rope 7 affects the work of calibrated bolck 6, to be more convenient to operate.
The periphery top of the shaft 12 is arranged with driven wheel of differential 13, and the side top of the bracket 10 is embedded with biography
Moving axis 15, the transmission shaft 15 are rotatablely connected over the mount 10 by bearing 16, the left-hand end of transmission shaft 15 be equipped with from mantle
The right-hand end of the drive bevel gear 14 that gear 13 matches, transmission shaft 15 is equipped with eccentric disc 17, the right-hand end of the eccentric disc 17
Side is equipped with handle 18, by swing handle 18, drives eccentric disc 17 to rotate, so that rotating drive shaft 15, passes through active conical tooth
The mutual cooperation of wheel 14 and driven wheel of differential 13, transmission shaft 15 drive shaft 12 to rotate, and then rotate with moving-wire roller 11, to receive
Stringing rope 7, and then calibrated bolck 6 is affected to move, easy to operate, convenient for being slowly increased for control force, application is very convenient.
The front end face of the pedestal 1 is equipped with the first drawer 19 and the second drawer 21, and first drawer 19 is located at test chamber 3
Right side, the front end face of the first drawer 19 is equipped with first in command's slot 20, and second drawer 21 is located at the first drawer 19 and test
The front end face of the lower section of chamber 3, the second drawer 21 is equipped with second handle slot 22, is used respectively by the first drawer 19 and the second drawer 21
In storage standards block 6 and test board 4, preventing without using period, wet air corrodes calibrated bolck 6 and test board 4,
Influence subsequent demonstrating effect.
The working principle of embodiment 1-2 drives eccentric disc 17 to rotate by swing handle 18, thus rotating drive shaft 15,
By the mutual cooperation of drive bevel gear 14 and driven wheel of differential 13, transmission shaft 15 drives shaft 12 to rotate, and then with moving-wire roller
11 rotations to tighten cotton rope 7, and then affect calibrated bolck 6 to move, and read the size of pulling force by dynamometer 8, to analyze
6 stress condition of calibrated bolck and friction situation；By replacing different test board 4, different materials can be measured to rubbing
The influence of power is wiped, compares study convenient for student；Storage standards block 6 is respectively used to by the first drawer 19 and the second drawer 21 and is surveyed
Test plate (panel) 4 is prevented without using period, and wet air corrodes calibrated bolck 6 and test board 4, influences subsequent demonstration effect
Fruit.
The innovation of the invention consists in that the sliding by calibrated bolck 6 on test board 4, and pulling force is read by dynamometer 8
Size, thus 6 stress condition of analytical standard block and friction situation；It, can be with by replacing different test board 4
Influence of the different materials to frictional force is measured, compares study convenient for student.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (8)
1. the top end face left side of a kind of physics teaching demonstration, test device, including pedestal (1), pedestal (1) is equipped with detection faces
(2), detection faces (2) are to be obliquely installed, which is characterized in that detection faces (2) are equipped with test chamber (3), are equipped with and survey in test chamber (3)
The top end face of test plate (panel) (4), test board (4) is equipped with test surfaces (5), and the top of test surfaces (5) is placed with calibrated bolck (6), calibrated bolck
(6) right-hand end is equipped with cotton rope (7), and cotton rope (7) is equipped with dynamometer (8).
2. a kind of physics teaching demonstration, test device according to claim 1, which is characterized in that the top of pedestal (1)
Middle face is equipped with the fixed pulley (9) matched with detection faces (2), is equipped with bracket (10) on the right side of the top end face of pedestal (1), bracket
(10) intracavity bottom is equipped with line roller (11), and line roller (11) is rotatably connected on bracket (10) by shaft (12), cotton rope (7)
On the online roller of other end winding (11).
3. a kind of physics teaching demonstration, test device according to claim 2, which is characterized in that bracket (10) is U-shaped
Structure.
4. a kind of physics teaching demonstration, test device according to claim 2, which is characterized in that outside shaft (12)
Disc top is arranged with driven wheel of differential (13), and the side top of bracket (10) is embedded with transmission shaft (15), and transmission shaft (15) is logical
It crosses bearing (16) to be rotatably connected on bracket (10), the left-hand end of transmission shaft (15) is equipped with to be matched with driven wheel of differential (13)
The right-hand end of drive bevel gear (14), transmission shaft (15) is equipped with eccentric disc (17), and the right-hand end side of eccentric disc (17) is equipped with handle
Hand (18).
5. a kind of physics teaching demonstration, test device according to claim 1, which is characterized in that the anode of pedestal (1)
Face is equipped with the first drawer (19) and the second drawer (21), and the first drawer (19) is located at the right side of test chamber (3), the second drawer (21)
It is located at the lower section of the first drawer (19) and test chamber (3).
6. a kind of physics teaching demonstration, test device according to claim 5, which is characterized in that the first drawer (19)
Front end face be equipped with first in command's slot (20).
7. a kind of physics teaching demonstration, test device according to claim 5, which is characterized in that the second drawer (21)
Front end face be equipped with second handle slot (22).
8. a kind of physics teaching demonstration, test device according to claim 1, which is characterized in that test surfaces (5) are to incline
The inclination angle on inclined-plane, test surfaces (5) is identical as the inclination angle of detection faces (2), and test surfaces (5) and detection faces (2) are on same inclined-plane
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332325.4A CN109493695A (en) | 2018-11-09 | 2018-11-09 | A kind of physics teaching demonstration, test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332325.4A CN109493695A (en) | 2018-11-09 | 2018-11-09 | A kind of physics teaching demonstration, test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109493695A true CN109493695A (en) | 2019-03-19 |
Family
ID=65694209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811332325.4A Pending CN109493695A (en) | 2018-11-09 | 2018-11-09 | A kind of physics teaching demonstration, test device |
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| Country | Link |
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| CN (1) | CN109493695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967355A (en) * | 2019-12-31 | 2020-04-07 | 桂林理工大学 | Movable type steel bar sleeve grouting fullness detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943003A (en) * | 2014-04-21 | 2014-07-23 | 王士涛 | Coriolis acceleration demonstration instrument |
| CN206400897U (en) * | 2016-12-29 | 2017-08-11 | 王秉政 | A kind of physical test platform |
| CN206451428U (en) * | 2016-09-20 | 2017-08-29 | 江苏苏威尔科技有限公司 | A kind of frictional force tester |
| CN206601860U (en) * | 2016-07-20 | 2017-10-31 | 李直幸 | Friction experiment device and force resolution teaching aid |
| CN107993535A (en) * | 2018-02-01 | 2018-05-04 | 孙鹏宇 | A kind of physical study friction force demonstration device |
-
2018
- 2018-11-09 CN CN201811332325.4A patent/CN109493695A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943003A (en) * | 2014-04-21 | 2014-07-23 | 王士涛 | Coriolis acceleration demonstration instrument |
| CN206601860U (en) * | 2016-07-20 | 2017-10-31 | 李直幸 | Friction experiment device and force resolution teaching aid |
| CN206451428U (en) * | 2016-09-20 | 2017-08-29 | 江苏苏威尔科技有限公司 | A kind of frictional force tester |
| CN206400897U (en) * | 2016-12-29 | 2017-08-11 | 王秉政 | A kind of physical test platform |
| CN107993535A (en) * | 2018-02-01 | 2018-05-04 | 孙鹏宇 | A kind of physical study friction force demonstration device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967355A (en) * | 2019-12-31 | 2020-04-07 | 桂林理工大学 | Movable type steel bar sleeve grouting fullness detection device |
| CN110967355B (en) * | 2019-12-31 | 2022-08-16 | 桂林理工大学 | Movable type steel bar sleeve grouting fullness detection device |
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Application publication date: 20190319 |