CN209496521U - A kind of physical quantity test macro - Google Patents
A kind of physical quantity test macro Download PDFInfo
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- CN209496521U CN209496521U CN201920063604.9U CN201920063604U CN209496521U CN 209496521 U CN209496521 U CN 209496521U CN 201920063604 U CN201920063604 U CN 201920063604U CN 209496521 U CN209496521 U CN 209496521U
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- testing base
- test
- support plate
- screw rod
- glass
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Abstract
The utility model discloses a kind of physical quantity test macros of physical technology field, including computer and support plate, the bottom of the support plate is equipped with support frame, blissful horse wheel is fixedly mounted in the bottom four corners of support frame as described above, the top left side of the support plate is connected with testing base, test top plate is provided with right above the testing base, glass infuser is connected between test top plate and the testing base, screw rod is rotatably connected in the middle part of the inner cavity of the glass infuser vertically, two groups of polished rods being located at left and right sides of screw rod are connected between the test top plate and testing base, the utility model structure is simple, convenient test, suitable for testing acceleration of gravity, it is taken turns by good fortune horse, the movement of feasible system, level meter can also be cooperated to be supported the manual leveling of plate, ensure the accuracy tested, by vacuum pumping pump to glass Cylinder is vacuumized, and the acceleration of gravity under analog vacuum environment improves the accuracy of test.
Description
Technical field
The utility model relates to physical technology field, specially a kind of physical quantity test macro.
Background technique
Gravity acceleration g is a very important concept in high school physics, and physical connotation is also very abundant, and gravity accelerates
Degree test experiments are also one of the Physical Experiment that high school student must do.Currently, the common test method of acceleration of gravity is single pendulum survey
Examination method and falling ball method when being tested using single pendulum method of testing, need one personal record of a personal record time to vibrate entirely secondary
Number, operation is more complicated, and the full vibration number of two personal record single pendulums and single pendulum time are very easy to the mistake for occurring very big
Difference is repeated the operation several times, and the progress of student experimenting is seriously affected.
Such as Chinese Patent Application No. CN201620483266.0, a kind of particular content are as follows: acceleration of gravity test physics
Experimental provision, including test platform, the test platform surface sets gradually horizontal ruler, transparent vacuum cylinder and aspiration pump, described
Altitude scale is arranged in transparent vacuum cylinder, and four adjusting bolts are arranged in the test platform bottom, and transparent vacuum cylinder bottom is set
Vulcanie pad is set, pressure sensor is set inside the vulcanie pad, electric expansion is arranged in transparent vacuum cylinder top
Electromagnet is arranged in bar, the electric telescopic rod connection expansion link control device, the electric telescopic rod top, and the electromagnet connects
Electro-magnet switch is connect, the electro-magnet switch connects processor, and the pressure sensor connects processor, the processor connection
Power switch, the power switch connect battery, and the aspiration pump connects battery, the processor connection timer.The device
The acceleration of gravity of offer tests physics facility test method simple, intuitive, easy to operate.
This acceleration of gravity test physics facility first opens power switch although tested, and iron ball is inhaled
It is attached on electromagnet, is then vacuumized, so that test environment is in vacuum state, air drag is avoided to generate test result
It influences, is then shut off electro-magnet switch, iron ball free-falling, while timer starts to count, when iron ball reaches bottom end, pressure is passed
Sensor receives signal, and signal is passed to processor, and processor, which controls timer, to be stopped, and is finally fallen according to time and iron ball
Height easily calculates acceleration of gravity；By the way that four adjusting bolts of test platform bottom are arranged in, can be convenient
The horizontal position for adjusting the present apparatus, avoids existing test equipment or device adjusts the problem of horizontality is more troublesome；Meanwhile
The height from vulcanie pad of iron ball can be adjusted by electric telescopic rod, carry out the iron ball of different height certainly conducive to classmate
By falling body experiment, deepens classmate and acceleration of gravity is further understood；In addition, transparent vacuum cylinder facilitates classmate to observe iron ball
Motion profile corrects the various problems generated in experiment in time, and the altitude scale being arranged on vacuum cylinder can make classmate
The height for intuitively measuring iron ball whereabouts, avoids the trouble using supplemental measurement tool, but this acceleration of gravity tester
Reason experimental provision is unable to the acceleration of gravity of two groups of unlike materials of intuitively comparing, different quality, different size of object, thus not
The fixed value of acceleration of gravity at different conditions intuitively can be shown to classmates, be based on this, the utility model devises one
Kind physical quantity test macro, to solve the above problems.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of physical quantity test macro
This acceleration of gravity test physics facility is unable to two groups of unlike materials of intuitively comparing, different quality, different size of object
The acceleration of gravity of body, so that asking for the fixed value of acceleration of gravity at different conditions intuitively cannot be shown to classmates
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of physical quantity test macro, including calculates
Machine and support plate, the bottom of the support plate are equipped with support frame, and blissful horse is fixedly mounted in the bottom four corners of support frame as described above
Wheel, the top left side of the support plate is connected with testing base, test top plate is provided with right above the testing base, described
It is connected with glass infuser between test top plate and testing base, is rotatably connected to screw rod vertically in the middle part of the inner cavity of the glass infuser, institute
It states and is connected with two groups of polished rods being located at left and right sides of screw rod between test top plate and testing base, be bolted on the screw rod and light
The thread slider that bar is slidably connected, the bottom of the thread slider have been left and right symmetrically arranged clamping device, the testing base
Top is fixedly installed with two groups of cups that connect being located at below two groups of clamping devices, and the top left side of the support plate is connected with position
Vacuum pumping pump in testing base left, the vacuum-pumping tube being connected between the bleeding point and glass infuser of the vacuum pumping pump are described
The center of top of support plate is connected with controller, and the top right side of the support plate is connected with cabinet, the computer bit in
The top of cabinet, is fixedly installed with motor in the middle part of the inner cavity of the testing base, under the output end and screw rod of the motor
End is connected by shaft coupling, and the intracavity bottom for connecing cup is equipped with pressure sensor, and the vacuum pumping pump, motor and pressure pass
Sensor passes through controller and external power supply is electrically connected.
Preferably, the glass infuser includes glass infuser main body, the outer circumferential walls lower part of the glass infuser main body be equipped with
The glass door of glass infuser body seal is equipped with handle on the glass door.
Preferably, the clamping device includes electric pushrod, and the outer circumferential walls of the electric pushrod fixed link are uniformly hinged
There are four groups of clamping limbs, clamping limb lower end relative inner described in four groups is hinged with connecting rod between the telescopic rod of electric pushrod,
The electric pushrod is electrically connected by controller and external power supply.
Preferably, the level meter being fixedly installed at the top of the testing base on front side of screw rod.
Preferably, graduated scale is provided on the polished rod.
Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, convenient test is fitted
For testing acceleration of gravity, the movement, it can be achieved that system is taken turns by good fortune horse, level meter can also be cooperated to be supported plate
Manual leveling, it is ensured that the accuracy of test vacuumizes glass infuser by vacuum pumping pump, under analog vacuum environment
Acceleration of gravity improves the accuracy of test, by motor drives screw mandrel rotation, it can be achieved that the lifting of clamping device, is conducive to
The progress of experiment can assist calculating fall time, Portable computer calculates acceleration of gravity by pressure sensor.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model schematic view of the front view；
Fig. 3 is the portion the utility model A enlarged structure schematic diagram；
Fig. 4 is the utility model glass infuser structural schematic diagram；
Fig. 5 is the utility model clamping device structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- support plate, 2- support frame, 3- good fortune horse wheel, 4- testing base, 5- test top plate, 6- glass infuser, 61- glass infuser master
Body, 62- glass door, 63- handle, 7- screw rod, 8- polished rod, 9- thread slider, 10- clamping device, 101- electric pushrod, 102- folder
Gripping arm, 103- connecting rod, 11- connect cup, 12- level meter, 13- vacuum pumping pump, 14- vacuum-pumping tube, 15- controller, 16- storage
Cabinet, 17- computer, 18- motor, 19- pressure sensor.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of physical quantity test macro technical solution: a kind of physical quantity test system
System, including computer 17 and support plate 1, the bottom of support plate 1 are equipped with support frame 2, the fixed peace of the bottom four corners of support frame 2
Equipped with good fortune horse wheel 3, the top left side of support plate 1 is connected with testing base 4, and the surface of testing base 4 is provided with test top plate
5, it tests between top plate 5 and testing base 4 and is connected with glass infuser 6, be rotatably connected to screw rod 7 vertically in the middle part of the inner cavity of glass infuser 6,
It is connected with two groups of polished rods 8 for being located at the left and right sides of screw rod 7 between test top plate 5 and testing base 4, is bolted on screw rod 7 and light
The thread slider 9 that bar 8 is slidably connected, the bottom of thread slider 9 have been left and right symmetrically arranged clamping device 10, the top of testing base 4
Portion be fixedly installed with two groups be located at the lower section of two groups of clamping devices 10 connect cup 11, the top left side of support plate 1 is connected with position
Vacuum pumping pump 13 in 4 left of testing base, the vacuum-pumping tube 14 being connected between the bleeding point and glass infuser 6 of vacuum pumping pump 13,
The center of top of support plate 1 is connected with controller 15, and the top right side of support plate 1 is connected with cabinet 16, and computer 17 is located at
The top of cabinet 16, is fixedly installed with motor 18 in the middle part of the inner cavity of testing base 4, under the output end and screw rod 7 of motor 18
End is connected by shaft coupling, and the intracavity bottom for connecing cup 11 is equipped with pressure sensor 19, and vacuum pumping pump 13, motor 18 and pressure pass
Sensor 19 is electrically connected by controller 15 and external power supply, the model Siemens s7-200 of controller 15.
Further, glass infuser 6 includes glass infuser main body 61, and the outer circumferential walls lower part of glass infuser main body 61 is equipped with and glass
The glass door 62 that glass cylinder main body 61 seals is equipped with handle 63 on glass door 62；By opening glass door 62, teacher couple can be facilitated
Test ball fixation with take.
Preferably, clamping device 10 includes electric pushrod 101, and the outer circumferential walls of 101 fixed link of electric pushrod are uniformly hinged
There are four groups of clamping limbs 102, four groups of 102 lower end relative inner of clamping limb companies of being hinged between the telescopic rod of electric pushrod 101
Extension bar 103, electric pushrod 101 are electrically connected by controller 15 and external power supply；Electric pushrod 101 is controlled by controller 15
It is flexible, may make connecting rod 103 top or inwardly to draw clamping limb 102 outward, to realize clamping to experiment ball or unclasp.
Preferably, the top of testing base 4 is fixedly installed with the level meter 12 positioned at 7 front side of screw rod, it can be achieved that test bottom
Seat 4 is in a horizontal state, it is ensured that the accuracy of test.
Preferably, it is provided with graduated scale on polished rod 8, test height can be understood by graduated scale.
One concrete application of the present embodiment are as follows: the present apparatus is a kind of physical quantity test macro, is primarily adapted for use in gravity
Acceleration is tested, in use, first passing through observation level meter 12 in advance, and cooperates the height adjustment of good fortune horse wheel 3, so that test bottom
Seat 4 is in horizontality, and then, teacher can be clamped on two groups of clamping devices 10 by opening glass door 62 by ball is tested, and has
Body gripping step is to be shunk by the telescopic end that controller controls two groups of electric pushrods 101, so that the clamping of clamping limb 102 is placed
Test ball between 4 groups of clamping limbs 102.Then, glass door 62 is shut, teacher can control motor 18 by control switch and open
It is dynamic, so that screw rod 7 rotates, rise so that thread slider 9 be driven to stablize along polished rod 8, when it rises to certain altitude, in stopping
It rises, then, is started by controller control 15, so that the air inside glass infuser 6 is taken out outward with vacuum-pumping tube 14, until glass
Vacuum state is approached in the inner cavity of glass cylinder 6, and the telescopic end elongation of two groups of electric pushrods 101 is then controlled by controller 15, and opens
Beginning timing, so that two groups of clamping devices 10 decontrol test ball simultaneously, test ball to connecing in cup 11, and touches the movement of falling object
Signal is passed to controller 15 after the touch of pressure sensor 19 by pressure sensor 19, and controller 15 receives signal and stops timing,
And data are passed into computer 17 by USB line, user can be from reads data log on the scale of polished rod 8 to computer 17
In, computer 17 can calculate the acceleration of gravity of two test balls by simple program.Academics and students can survey in the present system
Try two groups of different qualities, same size；Different quality, different size；Same material, different size；Phase homogenous quantities, unlike material
Test ball, thus to verify acceleration of gravity.Wherein test ball, which can be placed in cabinet 16, is saved.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of physical quantity test macro, including computer (17) and support plate (1), it is characterised in that: the support plate (1)
Bottom is equipped with support frame (2), and blissful horse wheel (3), the support plate is fixedly mounted in the bottom four corners of support frame as described above (2)
(1) top left side is connected with testing base (4), and test top plate (5) is provided with right above the testing base (4), described
It is connected with glass infuser (6) between test top plate (5) and testing base (4), vertical rotation connects in the middle part of the inner cavity of the glass infuser (6)
It is connected to screw rod (7), two groups of light being located at left and right sides of screw rod (7) is connected between test top plate (5) and testing base (4)
Bar (8) is bolted with the thread slider (9) being slidably connected with polished rod (8), the bottom of the thread slider (9) on the screw rod (7)
It has been left and right symmetrically arranged clamping device (10), has been fixedly installed with two groups at the top of the testing base (4) and is located at two groups of folders
Connecing cup (11) below device (10) is held, the top left side of the support plate (1) is connected with the pumping positioned at testing base (4) left
Vacuum pump (13), the vacuum-pumping tube (14) being connected between the bleeding point and glass infuser (6) of the vacuum pumping pump (13), the support
The center of top of plate (1) is connected with controller (15), and the top right side of the support plate (1) is connected with cabinet (16), described
Computer (17) is located at the top of cabinet (16), is fixedly installed with motor (18), institute in the middle part of the inner cavity of the testing base (4)
The output end for stating motor (18) is connect with the lower end of screw rod (7) by shaft coupling, and the intracavity bottom for connecing cup (11) is equipped with
Pressure sensor (19), the vacuum pumping pump (13), motor (18) and pressure sensor (19) are by controller (15) and outer
Connect power supply electric connection.
2. a kind of physical quantity test macro according to claim 1, it is characterised in that: the glass infuser (6) includes glass
Cylinder main body (61), the outer circumferential walls lower part of the glass infuser main body (61) are equipped with the glass door with glass infuser main body (61) sealing
(62), handle (63) are installed on the glass door (62).
3. a kind of physical quantity test macro according to claim 1, it is characterised in that: the clamping device (10) includes electricity
Dynamic push rod (101), the outer circumferential walls of electric pushrod (101) fixed link are uniformly hinged with four groups of clamping limbs (102), four groups of institutes
It states clamping limb (102) lower end relative inner and is hinged with connecting rod (103) between the telescopic rod of electric pushrod (101), it is described
Electric pushrod (101) is electrically connected by controller (15) and external power supply.
4. a kind of physical quantity test macro according to claim 1, it is characterised in that: the top of the testing base (4)
It is fixedly installed with the level meter (12) being located on front side of screw rod (7).
5. a kind of physical quantity test macro according to claim 1, it is characterised in that: be provided with quarter on the polished rod (8)
Spend ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063604.9U CN209496521U (en) | 2019-01-15 | 2019-01-15 | A kind of physical quantity test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063604.9U CN209496521U (en) | 2019-01-15 | 2019-01-15 | A kind of physical quantity test macro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209496521U true CN209496521U (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920063604.9U Expired - Fee Related CN209496521U (en) | 2019-01-15 | 2019-01-15 | A kind of physical quantity test macro |
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| Country | Link |
|---|---|
| CN (1) | CN209496521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111933000A (en) * | 2020-08-18 | 2020-11-13 | 安庆师范大学 | Combined mechanical arm of force mechanical kinetic energy demonstrator |
-
2019
- 2019-01-15 CN CN201920063604.9U patent/CN209496521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111933000A (en) * | 2020-08-18 | 2020-11-13 | 安庆师范大学 | Combined mechanical arm of force mechanical kinetic energy demonstrator |
| CN111933000B (en) * | 2020-08-18 | 2021-12-03 | 安庆师范大学 | Combined mechanical arm of force mechanical kinetic energy demonstrator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191015 Termination date: 20210115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |