CN208569945U - A kind of physics experiment with falling objects instructional device - Google Patents
A kind of physics experiment with falling objects instructional device Download PDFInfo
- Publication number
- CN208569945U CN208569945U CN201820145446.7U CN201820145446U CN208569945U CN 208569945 U CN208569945 U CN 208569945U CN 201820145446 U CN201820145446 U CN 201820145446U CN 208569945 U CN208569945 U CN 208569945U
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- China
- Prior art keywords
- pedestal
- workbench
- cavity
- bar
- falling objects
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Abstract
The utility model discloses a kind of physics experiment with falling objects instructional devices, including pedestal, more support rods are symmetrically arranged on the pedestal, workbench is equipped on the more support rods jointly, the first cavity is offered in the workbench, gravity sensor is equipped in first cavity, the workbench is equipped with timer, the pedestal is equipped with mounting base, fixing groove and the second cavity are offered in the mounting base, first motor is equipped in second cavity, sliding rail is equipped in the fixing groove, sliding bar is slidably connected on the sliding rail, threaded rod is threaded on the sliding bar, the sliding bar upper surface is equipped with fixed frame, the fixed frame is equipped with the second motor, second motor is equipped with telescopic rod, the lower surface of the sliding bar is symmetrically arranged with two mounting rods.The utility model clever structure, easy to use, accuracy is high, can accelerate understanding of the student to freely falling body relevant knowledge, be worthy to be popularized.
Description
Technical field
The utility model relates to teaching equipment technical field more particularly to a kind of physics experiment with falling objects instructional devices.
Background technique
Physics is the subject for largely relying on experiment, and physics experiment teaching is guaranteeing to physical principle
Understand and plays very important effect in students ' quality education.Wherein, acceleration of gravity experiment and frictional force experiment be
Experiment critically important in physics is learned, acceleration of gravity can make student understand Newton's law, existing physics experiment teaching device
In there is no the experimental provision of freely falling body, fully rely on the explanation of teacher, the understanding that student can not be vivid reduces teaching
Efficiency.
Utility model content
Purpose of the utility model is to solve do not have freely falling body in physics experiment teaching device in the prior art
The problem of experimental provision, fully relies on the explanation of teacher, the understanding that student can not be vivid, reduces efficiency of teaching, and mention
A kind of physics experiment with falling objects instructional device out.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of physics experiment with falling objects instructional device, including pedestal are symmetrically arranged with more support rods on the pedestal, more
Workbench is equipped on support rod described in root jointly, the first cavity is offered in the workbench, is equipped with weight in first cavity
Power inductor, and the upper surface of gravity sensor is concordant with the upper surface of workbench, the workbench is equipped with timer, and counts
When device and gravity sensor between using be electrically connected, the pedestal offers fixing groove in the mounting base equipped with mounting base
With the second cavity, second cavity is interior to be equipped with first motor, and sliding rail is equipped in the fixing groove, is slidably connected on the sliding rail
There is sliding bar, threaded rod is threaded on the sliding bar, and the lower end of threaded rod is connect with first motor, the sliding bar
Upper surface is equipped with fixed frame, and the fixed frame is equipped with the second motor, and second motor is equipped with telescopic rod, and telescopic rod
Lower end is through sliding bar and extends downwardly, and the lower surface of the sliding bar is symmetrically arranged with two mounting rods, and the telescopic rod is symmetrical
There are two cursors for rotation connection, and cursor and mounting rod are rotatablely connected, and are fixedly connected to folder on each cursor
Block.
Preferably, it is uniformly provided with multiple mounting grooves and limiting slot in the pedestal, and mounting groove is connected to limiting slot, position
It sets and is equipped with connection cross bar in corresponding multiple limiting slots jointly, and pass through multiple fixed links between adjacent connection cross bar
It connects, equidistant on the every connection cross bar to be equipped with more vertical bars, the lower end of the every vertical bar is fixedly connected to suction
Disk symmetrically opens up on the two sidewalls of the pedestal there are two groove, and the mounting groove connection corresponding with position of each groove,
Wherein symmetrically be fixedly connected on a connection cross bar there are two extension rod, be fixedly connected on each extension rod by
Briquetting is arranged with rotation fixture block in the briquetting, symmetrically opens up that there are two card slots on the two sidewalls of the pedestal, and rotates
Fixture block is fastened in corresponding two card slots in position.
Preferably, annular groove is offered on each cursor, is fixedly connected on the telescopic rod and straight pin, and
Straight pin is located in two annular grooves.
Preferably, the mounting base is equipped with scale.
Preferably, it is connected between the upper end of the threaded rod and the inner wall of fixing groove by needle bearing.
Preferably, two baffles are symmetrically arranged on the workbench.
Pass through rotation fixture block, briquetting, the stability of connection cross bar, vertical bar and sucker enhancement device；Pass through the first electricity
Machine drives threaded rod rotation, drives sliding bar to slide on the slide rail, the variation of lab sphere height is realized with this, in different height
Many experiments under the conditions of degree, the accuracy of Enhancement test；Gravity sensor is electrically connected with timer, is driven by gravity sensor
Timer is closed, and error is reduced, more accurate compared to more complete manual time-keeping.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of physics experiment with falling objects instructional device structural schematic diagram；
Fig. 2 be the utility model proposes a kind of physics experiment with falling objects instructional device in cursor part-structure amplification
Figure.
In figure: 1 pedestal, 2 first motors, 3 scales, 4 mounting bases, 5 sliding rails, 6 sliding bars, 7 threaded rods, 8 annular grooves, 9 turns
Swing arm, 10 second motors, 11 fixed frames, 12 telescopic rods, 13 mounting rods, 14 straight pins, 15 gravity sensors, 16 workbench, 17
Support rod, 18 rotation fixture blocks, 19 briquettings, 20 mounting grooves, 21 limiting slots, 22 vertical bars, 23 connection cross bars, 24 suckers, 25 fixture blocks.
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.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-2, a kind of physics experiment with falling objects instructional device, including pedestal 1 are uniformly provided in pedestal 1 more
A mounting groove 20 and limiting slot 21, and mounting groove 20 is connected to limiting slot 21, it is common in the corresponding multiple limiting slots 21 in position
Equipped with connection cross bar 23, and connected between adjacent connection cross bar 23 by multiple fixed links, it is impartial on every connection cross bar 23
Distance is equipped with more vertical bars 22, and the lower end of every vertical bar 22 is fixedly connected to sucker 24, the stability of enhancement device, pedestal 1
Two sidewalls on symmetrically open up there are two groove, and each groove mounting groove 20 corresponding with position is connected to, wherein one
Extension rod there are two being symmetrically fixedly connected on cross bar 23 is connected, is fixedly connected to briquetting 19, briquetting on each extension rod
It is arranged with rotation fixture block 18 on 19, symmetrically opens up that there are two card slots on the two sidewalls of pedestal 1, and rotates fixture block 18 and is fastened on position
It sets in corresponding two card slots.
It is symmetrically arranged with more support rods 17 on pedestal 1, is equipped with workbench 16 on more support rods 17 jointly, on workbench 16
Two baffles are symmetrically arranged with, workbench 16 is rolled out after preventing lab sphere from falling and is damaged, offers first in workbench 16
Cavity, the first cavity is interior to be equipped with gravity sensor 15, and the upper surface of gravity sensor 15 is concordant with the upper surface of workbench 16,
Workbench 16 is equipped with timer, and using being electrically connected between timer and gravity sensor 15, pedestal 1 is equipped with mounting base 4,
Mounting base 4 is equipped with scale 3, and fixing groove and the second cavity are offered in mounting base 4, is equipped with first motor 2 in the second cavity, Gu
Determine to be equipped with sliding rail 5 in slot, slidably connects sliding bar 6 on sliding rail 5, threaded rod 7, and threaded rod 7 are threaded on sliding bar 6
Lower end connect with first motor 2, between the upper end of threaded rod 7 and the inner wall of fixing groove pass through needle bearing connect, needle roller axis
Bearing structure compact volume is small, and running accuracy is high, can bear certain axial load while bearing very high radial load, be easy to
Installation, 6 upper surface of sliding bar are equipped with fixed frame 11, and fixed frame 11 is equipped with the second motor 10, and the second motor 10 is equipped with flexible
Bar 12, and the lower end of telescopic rod 12 through sliding bar 6 and extends downwardly, the lower surface of sliding bar 6 is symmetrically arranged with two mounting rods
13, symmetrically rotation connection offers annular groove 8 there are two cursor 9 to telescopic rod 12 on each cursor 9, on telescopic rod 12
Be fixedly connected with straight pin 14, and straight pin 14 is located in two annular grooves 8, and cursor 9 and mounting rod 13 are rotatablely connected, often
Fixture block 25 is fixedly connected on a cursor 9.
The utility model is before use, rotation rotation fixture block 18, makes it from the card slot for being detached from top, then press down on and turn
Dynamic fixture block 18, then extension rod, connection cross bar 23 and vertical bar 22 move downward, and squeeze the air between sucker 24 and ground, increase
The stability of intensity device；Before the experiment, the sphere for carrying out experiment is placed between two fixture blocks 25, then opens
Two motors 10, the second motor 10 drive telescopic rod 12 to shorten, then straight pin 14 moves upwards, by straight pin 14 to annular groove 8
Side wall power drive cursor 9 rotate, drive fixture block 25 sphere is clamped, then open first motor 2, first motor 2 drive
The threaded rod 7 being attached thereto rotates, then the sliding bar 6 being threadedly coupled with threaded rod 7 slides on sliding rail 5, is moved to suitable position
When setting, cursor 9 and 25 size of fixture block are fixed, then the height of sliding bar 6 to sphere lower surface is certain, can pass through mounting base 4
On scale 3 can calculate the height of sphere, open the second motor 10, the second motor 10 drives telescopic rod 12 to extend, then presss from both sides
Block 25 discharges sphere, and the moment for discharging sphere opens timer, and sphere is fallen by own falling in gravity sensor 15
On, timer stops while gravity sensor 15 experiences gravity；First motor 2, the second motor 10 can by wireless control,
Relevant specific structure and Principle of Communication are the technology of existing maturation, not described here any more；Gravity sensor 15 and timer phase
The specific structure and Principle of Communication of pass are the technology of existing maturation, not described here any more.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of physics experiment with falling objects instructional device, including pedestal (1), which is characterized in that symmetrically set on the pedestal (1)
There are more support rods (17), is equipped with workbench (16) jointly on the more support rods (17), is opened up in the workbench (16)
There is the first cavity, is equipped with gravity sensor (15) in first cavity, and the upper surface of gravity sensor (15) and workbench
(16) upper surface is concordant, and the workbench (16) is equipped with timer, and uses between timer and gravity sensor (15)
Electrical connection, the pedestal (1) are equipped with mounting base (4), offer fixing groove and the second cavity on the mounting base (4), described
First motor (2) are equipped in second cavity, are equipped with sliding rail (5) in the fixing groove, slidably connect sliding on the sliding rail (5)
Bar (6) is threaded with threaded rod (7) on the sliding bar (6), and the lower end of threaded rod (7) is connect with first motor (2),
Sliding bar (6) upper surface is equipped with fixed frame (11), and the fixed frame (11) is equipped with the second motor (10), second electricity
Machine (10) is equipped with telescopic rod (12), and the lower end of telescopic rod (12) through sliding bar (6) and extends downwardly, the sliding bar
(6) lower surface is symmetrically arranged with two mounting rods (13), and the telescopic rod (12) is symmetrically rotatablely connected there are two cursor (9),
And cursor (9) and mounting rod (13) are rotatablely connected, and are fixedly connected to fixture block (25) on each cursor (9).
2. a kind of physics experiment with falling objects instructional device according to claim 1, which is characterized in that the pedestal (1)
Multiple mounting grooves (20) and limiting slot (21) are inside uniformly provided with, and mounting groove (20) is connected to limiting slot (21), position is opposite
Connection cross bar (23) is equipped in the multiple limiting slots (21) answered jointly, and by multiple between adjacent connection cross bar (23)
Fixed link connection, it is equidistant equipped with more vertical bars (22) on the every connection cross bar (23), every vertical bar (22)
Lower end is fixedly connected to sucker (24), is symmetrically opened up on the two sidewalls of the pedestal (1) there are two groove, and each groove is equal
Mounting groove (20) connection corresponding with position, wherein being symmetrically fixedly connected on a connection cross bar (23), there are two extend
Bar is fixedly connected to briquetting (19) on each extension rod, and rotation fixture block (18) is arranged on the briquetting (19),
Card slot there are two symmetrically being opened up on the two sidewalls of the pedestal (1), and rotate fixture block (18) and be fastened on position corresponding two
In a card slot.
3. a kind of physics experiment with falling objects instructional device according to claim 1, which is characterized in that each rotation
It offers annular groove (8), is fixedly connected on the telescopic rod (12) and straight pin (14), and straight pin (14) position on arm (9)
In two annular grooves (8).
4. a kind of physics experiment with falling objects instructional device according to claim 1, which is characterized in that the mounting base
(4) scale (3) are equipped with.
5. a kind of physics experiment with falling objects instructional device according to claim 1, which is characterized in that the threaded rod
(7) it is connected between the inner wall of upper end and fixing groove by needle bearing.
6. a kind of physics experiment with falling objects instructional device according to claim 1, which is characterized in that the workbench
(16) two baffles are symmetrically arranged on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820145446.7U CN208569945U (en) | 2018-01-29 | 2018-01-29 | A kind of physics experiment with falling objects instructional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820145446.7U CN208569945U (en) | 2018-01-29 | 2018-01-29 | A kind of physics experiment with falling objects instructional device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208569945U true CN208569945U (en) | 2019-03-01 |
Family
ID=65452512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820145446.7U Expired - Fee Related CN208569945U (en) | 2018-01-29 | 2018-01-29 | A kind of physics experiment with falling objects instructional device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208569945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741663A (en) * | 2019-03-19 | 2019-05-10 | 王端晔 | Physics lesson free fall experimental device |
| CN111933000A (en) * | 2020-08-18 | 2020-11-13 | 安庆师范大学 | Combined mechanical arm of force mechanical kinetic energy demonstrator |
-
2018
- 2018-01-29 CN CN201820145446.7U patent/CN208569945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741663A (en) * | 2019-03-19 | 2019-05-10 | 王端晔 | Physics lesson free fall experimental device |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20210129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |