CN109036018A - A kind of physical mechanics apparatus for demonstrating - Google Patents
A kind of physical mechanics apparatus for demonstrating Download PDFInfo
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- CN109036018A CN109036018A CN201811060965.4A CN201811060965A CN109036018A CN 109036018 A CN109036018 A CN 109036018A CN 201811060965 A CN201811060965 A CN 201811060965A CN 109036018 A CN109036018 A CN 109036018A
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- box body
- display screen
- fixedly connected
- battery
- spring tension
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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
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- General Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
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- Educational Technology (AREA)
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of physical mechanics apparatus for demonstrating, including box body, placing groove is offered at the top of the box body, the inside of the placing groove is placed with weight, connector sleeve is fixedly connected on the right side of the box body, spring tension meter is connected on the right side of the connector sleeve, the left side of the spring tension meter is fixedly connected with drag hook by spring, the connector sleeve surface is rotatably connected to movable sleeve by angular transducer, the surface of the movable sleeve and position of corresponding drag hook offers square hole, the inside of the box body is fixedly connected with battery；It is fixedly connected with single-chip microcontroller at the top of the battery, pressure display screen is inlaid at the top of the box body.The present invention passes through the cooperation of spring tension meter, angular transducer, pressure display screen, pressure sensor and angle display screen, existing apparatus for demonstrating is solved when carrying out Friction Force test, the coefficient of friction in test can not be adjusted, to be unfavorable for the problem of improving efficiency of teaching and quality of instruction.
Description
Technical field
The present invention relates to teaching equipment technical field more particularly to a kind of physical mechanics apparatus for demonstrating.
Background technique
Physical mechanics are a Ge Xin branches of mechanics, it is from the microstructure of substance and its characteristics of motion, with close
For the achievement of the subjects such as physics, physical chemistry and quantum chemistry, is calculated by analysis and research and numerical value, illustrate medium and material
Macroscopic property, and microscopic explanation is made to the macroscopic appearance and its characteristics of motion of medium and material.
Learnt physical mechanics in the Physics Course in middle school, including a kind of physical mechanics test: force of sliding friction
Size is related with what factor, needs to produce sliding block in the case where three kinds of differences with spring dynamometer during study
Raw force of sliding friction measures, and finally exports experiment conclusion, but existing mechanical testing equipment, once can only into
A kind of experiment of row, for Chinese this populous nation, middle school student's quantity of each class is many, sometimes a class
Cannot all allow it is all once tested per capita, it is very time-consuming and laborious.Chinese utility model CN207352831U proposes one kind
For the mechanics apparatus for demonstrating of Physical Experiment, although which has saved experimental period, but the apparatus for demonstrating is rubbing
When wiping power demonstration, can not coefficient of friction in test, to be unfavorable for improving efficiency of teaching and quality of instruction, for this purpose, we
It is proposed a kind of physical mechanics apparatus for demonstrating.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of physical mechanics apparatus for demonstrating, have basis
Demand selects different backing plates, so as to adjust coefficient of friction, the characteristics of improving efficiency of teaching and quality of instruction, solves existing drill
Showing device can not adjust the coefficient of friction in test when carrying out Friction Force test, to be unfavorable for improving efficiency of teaching and religion
The problem of learning quality.
The invention provides the following technical scheme: a kind of physical mechanics apparatus for demonstrating, including box body, the box body top open up
There is placing groove, the inside of the placing groove is placed with weight, and connector sleeve, the connector sleeve are fixedly connected on the right side of the box body
Right side be connected with spring tension meter, the left side of the spring tension meter is fixedly connected with drag hook, the company by spring
Female connector surface is rotatably connected to movable sleeve by angular transducer, and the position of the surface of the movable sleeve and corresponding drag hook offers
The inside of square hole, the box body is fixedly connected with battery；
It is fixedly connected with single-chip microcontroller at the top of the battery, pressure display screen is inlaid at the top of the box body, the box body
The left side and position of corresponding battery is fixedly connected with charging interface, the bottom of the box body is fixedly connected with pressure sensor, institute
It states and inlays angled display screen at the top of box body；
The output end of the angular transducer and the input terminal of single-chip microcontroller are unidirectionally electrically connected, the input terminal and electricity of the single-chip microcontroller
The output end in pond is unidirectionally electrically connected, and the input terminal of the battery and the output end of charging interface are unidirectionally electrically connected, the list
The output end of piece machine and the input terminal of pressure display screen are unidirectionally electrically connected, output end and the angle display screen of the single-chip microcontroller
Input terminal is unidirectionally electrically connected.
Preferably, the bottom of the box body is connected with backing plate, and the surface of the spring tension meter is provided with graduation apparatus.
Preferably, it is fixed by the connecting rod on the right side of the spring tension meter and is connected with pull ring, the spring tension meter
Model LTZ20.
Preferably, the weight includes counterweight, iron block and other items, and the angular transducer uses magnetic sensitive angle sensor.
Preferably, the battery uses polymer Li-ion battery, the model M0516LBN of the single-chip microcontroller.
Preferably, the pressure display screen and pressure sensor are all made of LCD liquid crystal display screen, and the charging interface uses
Micro USB interface.
Preferably, the depth of the placing groove is 3-8cm, and the width of the placing groove is 5-10cm, the placing groove
Length is 5-20cm.
Preferably, the surface of the placing groove inner wall is carved with anti-skid chequer, and the shape of the connector sleeve is semicircle.
The present invention provides a kind of physical mechanics apparatus for demonstrating, by being provided with box body, by the placing groove of box body
It is put into weight, to adjust the pressure between box body and backing plate, by being provided with spring tension meter, can detecte spring tension meter
Tension variations by being provided with pressure sensor, can detecte between box body and backing plate to detect the pulling force that box body is subject to
Pressure, spring tension meter is pulled by pull ring and connecting rod, when box body is mobile, the pulling force size of spring tension meter is as quiet
Frictional force, the pulling force size of spring tensiometer is force of sliding friction in box body moving process, according to friction formula F=μ × FN
It can be concluded that the coefficient of friction between box body and backing plate, wherein FN is pressure at right angle, and F is force of sliding friction, and μ is friction system
Number, wherein backing plate can be changed in the different plane such as desktop, ground, since coefficient of friction is different between different objects,
To facilitate teacher or student to change coefficient of friction as needed, by being provided with angular transducer, box body and bullet can detecte
Angle between spring tensiometer facilitates teacher or student to make box body and spring tension meter on the same line when testing, can also root
Drag hook is avoided to rotate relative to movable sleeve, by setting by being provided with square hole according to angle, pulling force and calculation of pressure coefficient of friction
Pressure display screen and angle display screen have been set, user is facilitated to check pressure change and angle change, it, can be with by being provided with battery
Facilitate user for battery charging by being provided with charging interface for the power supply of each electrical appliance, passed by spring tension meter, angle
The cooperation of sensor, pressure display screen, pressure sensor and angle display screen solves existing apparatus for demonstrating and is carrying out frictional force examination
When testing, the coefficient of friction in test can not be adjusted, to be unfavorable for the problem of improving efficiency of teaching and quality of instruction.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is connecting jacket structure schematic diagram of the present invention；
Fig. 3 is present system schematic diagram.
In figure: 1 box body, 2 placing grooves, 3 weights, 4 connector sleeves, 5 spring tension meters, 6 springs, 7 drag hooks, 8 angular transducers,
9 movable sleeves, 10 square holes, 11 batteries, 12 single-chip microcontrollers, 13 pressure display screens, 14 charging interfaces, 15 pressure sensors, 16 angles
Display screen, 17 backing plates, 18 graduation apparatus, 19 connecting rods, 20 pull rings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of physical mechanics apparatus for demonstrating, including box body 1, box
Placing groove 2 is offered at the top of body 1, the inside of placing groove 2 is placed with weight 3, and the right side of box body 1 is fixedly connected with connector sleeve 4, even
The right side of female connector 4 is connected with spring tension meter 5, and the left side of spring tension meter 5 is fixedly connected with drag hook 7 by spring 6, even
4 surface of female connector is rotatably connected to movable sleeve 9 by angular transducer 8, and the position of the surface of movable sleeve 9 and corresponding drag hook 7 opens up
There is square hole 10, the inside of box body 1 is fixedly connected with battery 11；
The top of battery 11 is fixedly connected with single-chip microcontroller 12, and the top of box body 1 is inlaid with pressure display screen 13, the left side of box body 1
And the position of corresponding battery 11 is fixedly connected with charging interface 14, the bottom of box body 1 is fixedly connected with pressure sensor 15, box body
Inlay angled display screen 16 in 1 top；
The output end of angular transducer 8 and the input terminal of single-chip microcontroller 12 are unidirectionally electrically connected, the input terminal and battery of single-chip microcontroller 12
11 output end is unidirectionally electrically connected, and the input terminal of battery 11 is unidirectionally electrically connected with the output end of charging interface 14, single-chip microcontroller
The input terminal of 12 output end and pressure display screen 13 is unidirectionally electrically connected, output end and the angle display screen 16 of single-chip microcontroller 12
Input terminal is unidirectionally electrically connected, and the bottom of box body 1 is connected with backing plate 17, and the surface of spring tension meter 5 is provided with graduation apparatus
18, the right side of spring tension meter 5 is fixedly connected with pull ring 20, the model LTZ20 of spring tension meter 5, weight by connecting rod 19
Object 3 includes counterweight, iron block and other items, and angular transducer 8 uses magnetic sensitive angle sensor, and battery 11 is using polymer Li-ion electricity
Pond, the model M0516LBN of single-chip microcontroller 12, pressure display screen 13 and pressure sensor 15 are all made of LCD liquid crystal display screen, fill
Electrical interface 14 uses Micro USB interface, and the depth of placing groove 2 is 3-8cm, and the width of placing groove 2 is 5-10cm, placing groove 2
Length be 5-20cm, facilitate user to place corresponding weight 3, the surface of 2 inner wall of placing groove is carved with anti-skid chequer, improves and put
The non-skid property of slot 2 is set, the shape of connector sleeve 4 is semicircle, and the radius of semicircle is less than the length of drag hook 7, guarantees that drag hook can
To be rotated relative to connector sleeve, by being provided with box body 1, by being put into weight 3 in the placing groove 2 of box body 1, to adjust box body
Pressure between 1 and backing plate 17, by can detecte the tension variations of spring tension meter 5 provided with spring tension meter 5, thus
The pulling force that detection box body 1 is subject to can detecte the pressure between box body 1 and backing plate 17, lead to by being provided with pressure sensor 15
It crosses pull ring 20 and connecting rod 19 pulls spring tension meter 5, when box body 1 is mobile, the pulling force size of spring tension meter 5 is quiet rubs
Power is wiped, the pulling force size of spring tensiometer 5 is force of sliding friction in 1 moving process of box body, according to friction formula F=μ × FN
It can be concluded that the coefficient of friction between box body 1 and backing plate 17, wherein FN is pressure at right angle, and F is force of sliding friction, and μ is friction
Coefficient, wherein backing plate 17 can be changed in the different plane such as desktop, ground, since coefficient of friction is not between different objects
Together, so that teacher or student be facilitated to change coefficient of friction as needed, by being provided with angular transducer 8, it can detecte box body 1
With the angle between spring tension meter 5, teacher or student is facilitated to make box body 1 and spring tension meter 5 on the same line when testing,
Also drag hook 7 can be avoided with respect to 9 turns of movable sleeve by being provided with square hole 10 according to angle, pulling force and calculation of pressure coefficient of friction
It is dynamic, by being provided with pressure display screen 13 and angle display screen 16, facilitates user to check pressure change and angle change, pass through bullet
The cooperation of spring tensiometer 5, angular transducer 8, pressure display screen 13, pressure sensor 15 and angle display screen 16 solves existing
There is apparatus for demonstrating when carrying out Friction Force test, the coefficient of friction in test can not be adjusted, to be unfavorable for improving efficiency of teaching
And the problem of quality of instruction.
In the present invention, by being provided with box body 1, by being put into weight 3 in the placing groove 2 of box body 1, to adjust box body
Pressure between 1 and backing plate 17, by can detecte the tension variations of spring tension meter 5 provided with spring tension meter 5, thus
The pulling force that detection box body 1 is subject to can detecte the pressure between box body 1 and backing plate 17, lead to by being provided with pressure sensor 15
It crosses pull ring 20 and connecting rod 19 pulls spring tension meter 5, when box body 1 is mobile, the pulling force size of spring tension meter 5 is quiet rubs
Power is wiped, the pulling force size of spring tensiometer 5 is force of sliding friction in 1 moving process of box body, according to friction formula F=μ × FN
It can be concluded that the coefficient of friction between box body 1 and backing plate 17, wherein FN is pressure at right angle, and F is force of sliding friction, and μ is friction
Coefficient, wherein backing plate 17 can be changed in the different plane such as desktop, ground, since coefficient of friction is not between different objects
Together, so that teacher or student be facilitated to change coefficient of friction as needed, by being provided with angular transducer 8, it can detecte box body 1
With the angle between spring tension meter 5, teacher or student is facilitated to make box body 1 and spring tension meter 5 on the same line when testing,
Also drag hook 7 can be avoided with respect to 9 turns of movable sleeve by being provided with square hole 10 according to angle, pulling force and calculation of pressure coefficient of friction
It is dynamic, by being provided with pressure display screen 13 and angle display screen 16, facilitate user to check pressure change and angle change, by setting
Battery 11 has been set, can have been powered for each electrical appliance, by being provided with charging interface 14, has facilitated user for the charging of battery 11, leads to
The cooperation of spring tension meter 5, angular transducer 8, pressure display screen 13, pressure sensor 15 and angle display screen 16 is crossed, is solved
Existing apparatus for demonstrating can not adjust the coefficient of friction in test when carrying out Friction Force test, to be unfavorable for improving teaching
The problem of efficiency and quality of instruction.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of physical mechanics apparatus for demonstrating, including box body (1), box body (1) top is offered placing groove (2), described to put
The inside for setting slot (2) is placed with weight (3), is fixedly connected with connector sleeve (4) on the right side of the box body (1), the connector sleeve (4)
Right side be connected with spring tension meter (5), the left side of the spring tension meter (5) is fixedly connected with drawing by spring (6)
Hook (7), it is characterised in that: connector sleeve (4) surface is rotatably connected to movable sleeve (9), the work by angular transducer (8)
The position of the dynamic surface for covering (9) and corresponding drag hook (7) offers square hole (10), and the inside of the box body (1) is fixedly connected with
Battery (11)；It is fixedly connected with single-chip microcontroller (12) at the top of the battery (11), it is aobvious that pressure is inlaid at the top of the box body (1)
Display screen (13), the left side of the box body (1) and the position for corresponding to battery (11) are fixedly connected with charging interface (14), the box body
(1) bottom is fixedly connected with pressure sensor (15), inlays angled display screen (16) at the top of the box body (1)；It is described
The output end of angular transducer (8) and the input terminal of single-chip microcontroller (12) are unidirectionally electrically connected, the input terminal of the single-chip microcontroller (12)
It is unidirectionally electrically connected with the output end of battery (11), the output end of the input terminal and charging interface (14) of the battery (11) is unidirectional
It is electrically connected, the input terminal of the output end and pressure display screen (13) of the single-chip microcontroller (12) is unidirectionally electrically connected, the monolithic
The output end of machine (12) and the input terminal of angle display screen (16) are unidirectionally electrically connected.
2. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: the bottom of the box body (1) is living
Dynamic to be connected with backing plate (17), the surface of the spring tension meter (5) is provided with graduation apparatus (18).
3. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: the spring tension meter (5)
Right side is fixedly connected with pull ring (20) by connecting rod (19), the model LTZ20 of the spring tension meter (5).
4. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: the weight (3) include counterweight,
Iron block and other items, the angular transducer (8) use magnetic sensitive angle sensor.
5. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: the battery (11) is using polymerization
Object lithium ion battery, the model M0516LBN of the single-chip microcontroller (12).
6. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: the pressure display screen (13) and
Pressure sensor (15) is all made of LCD liquid crystal display screen, and the charging interface (14) uses Micro USB interface.
7. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: the depth of the placing groove (2)
For 3-8cm, the width of the placing groove (2) is 5-10cm, and the length of the placing groove (2) is 5-20cm.
8. a kind of physical mechanics apparatus for demonstrating according to claim 1, it is characterised in that: placing groove (2) inner wall
Surface is carved with anti-skid chequer, and the shape of the connector sleeve (4) is semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060965.4A CN109036018A (en) | 2018-09-12 | 2018-09-12 | A kind of physical mechanics apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060965.4A CN109036018A (en) | 2018-09-12 | 2018-09-12 | A kind of physical mechanics apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109036018A true CN109036018A (en) | 2018-12-18 |
Family
ID=64621503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060965.4A Pending CN109036018A (en) | 2018-09-12 | 2018-09-12 | A kind of physical mechanics apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036018A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113129709A (en) * | 2020-01-15 | 2021-07-16 | 深圳市跨一科技有限公司 | Physical experiment mechanics slider |
| CN113380121A (en) * | 2021-06-03 | 2021-09-10 | 海南立字知识产权运营有限公司 | Centripetal force experimental apparatus |
| CN113436512A (en) * | 2021-07-06 | 2021-09-24 | 娄洁清 | Physical friction force experiment demonstration device |
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| CN205281914U (en) * | 2015-12-08 | 2016-06-01 | 安秦昊 | Digital sliding friction power experiment appearance |
| CN205582336U (en) * | 2016-02-25 | 2016-09-14 | 吴善方 | Frictional force presentation device is used in teaching |
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| CN113129709A (en) * | 2020-01-15 | 2021-07-16 | 深圳市跨一科技有限公司 | Physical experiment mechanics slider |
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| CN113436512B (en) * | 2021-07-06 | 2022-07-01 | 娄洁清 | Physical friction force experiment demonstration device |
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Application publication date: 20181218 |
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