CN109637299A - A kind of environmental and durable type physics acceleration test device - Google Patents
A kind of environmental and durable type physics acceleration test device Download PDFInfo
- Publication number
- CN109637299A CN109637299A CN201910102253.2A CN201910102253A CN109637299A CN 109637299 A CN109637299 A CN 109637299A CN 201910102253 A CN201910102253 A CN 201910102253A CN 109637299 A CN109637299 A CN 109637299A
- Authority
- CN
- China
- Prior art keywords
- environmental
- pedestal
- vertical tube
- test device
- durable type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 230000001133 acceleration Effects 0.000 title claims abstract description 37
- 230000007613 environmental effect Effects 0.000 title claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000002474 experimental method Methods 0.000 claims abstract description 19
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000002984 plastic foam Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Business, Economics & Management (AREA)
- Mathematical Physics (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Pure & Applied Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of environmental and durable type physics acceleration test devices, are especially used for physics facility technical field.Including pedestal and pedestal, several second support bars are uniformly equipped on the right side of the top of pedestal, the top of all second support bars is equipped with motion pipe, motion pipe is transparent glass tube, the right-hand end perforation connection vertical tube of motion pipe, it is equipped with the fixed pulley matched with vertical tube on the right side of the bottom wall of inner cavity of motion pipe, is equipped with the experiment mechanism matched respectively with fixed pulley and vertical tube in motion pipe, vertical tube is transparent glass tube；The present invention is greatly reduced the rolling friction of test carriage, to reduce influence of the frictional force to experimental data, improves the accuracy of experimental data by setting motion pipe；And stop influence of the wind to counterweight and cotton rope using vertical tube, external influence factors are further reduced, the accuracy of experiment is improved；And by receiving magazine, counterweight loss and damaged in collision can be prevented to greatest extent, improves the service life of experimental provision.
Description
Technical field
The present invention relates to physics facility technical field, specially a kind of environmental and durable type physics acceleration test dress
It sets.
Background technique
Physics is to study the subject of the motion of matter most typically rule and substance basic structure.Its theoretical construct is fully
With mathematics as oneself working language, to test as the sole criterion for examining theoretical correctness, it is most accurate now
A natural science subject.
Based on the research of physics is experiment, and the teaching of physics is also accompanied by the experiment of a large amount of teaching demonstration.
The correctness of physical principle is intuitively proved to student, so that inducing student finds out interest with Active Learning, improves teaching matter
Amount.In physics experiment teaching, acceleration test belongs to an important experiment in physics, and acceleration test is needed using special
Acceleration test device.
The frictional force of existing acceleration test device is more bigger than normal, causes experimental data error larger, influences rear issue
According to processing, be unfavorable for experiment correctness.
Summary of the invention
The purpose of the present invention is to provide a kind of environmental and durable type physics acceleration test devices, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
The top right side of a kind of environmental and durable type physics acceleration test device, including pedestal and pedestal, pedestal is uniformly equipped with
The top of several second support bars, all second support bars is equipped with motion pipe, and motion pipe is transparent glass tube, the right side of motion pipe
Side perforation connection vertical tube, the bottom wall of inner cavity right side of motion pipe are equipped with the fixed pulley matched with vertical tube, set in motion pipe
There is the experiment mechanism matched respectively with fixed pulley and vertical tube, vertical tube is transparent glass tube.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, experiment mechanism includes
Test carriage and dotted timer, test carriage are located in motion pipe, and the right-hand end of test carriage is fixedly connected with cotton rope, cotton rope
The other end is through fixed pulley and is fixedly connected with the counterweight matched with vertical tube.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, dotted timer is set
In the left side of motion pipe, dotted timer is fixedly connected on the top left hand of pedestal by first support bar, and dotted timer is logical
Cross the left-hand end that paper tape is connected to test carriage.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, the left side of vertical tube
End is uniformly equipped with several connecting rods, and the other end of connecting rod is fixedly connected on the right-hand end of pedestal.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, the top of pedestal is left
Side is uniformly equipped with several electrical retractors, and the top of the telescopic rod on electrical retractor is fixedly connected on the bottom of pedestal
End.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, the top of pedestal is right
Side is equipped with the receiving magazine matched with vertical tube, and receiving magazine is top open type structure, and the interior cavity inner sleeve of receiving magazine is equipped with anticollision
Pad.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, bumper is to select
Sponge material is made.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, the inner cavity of receiving magazine
Bottom wall center is equipped with shrink cylinder, and shrink cylinder is the cylindrical structure of top opening, and the bottom wall of inner cavity of shrink cylinder is equipped with spring, spring
Top is fixedly connected with the traveller matched with shrink cylinder, is to be slidably connected between traveller and shrink cylinder, and the top of traveller is fixed
The deceleration matched with counterweight is connected with to ram.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, it is choosing that deceleration, which is ramed,
It is made with plastic foam material, deceleration is ramed corresponding with vertical tube in the vertical direction.
In order to further increase a kind of using effect of environmental and durable type physics acceleration test device, pedestal is annular
Plate.
Compared with prior art, by setting motion pipe the rolling friction of test carriage is greatly reduced, to drop in the present invention
Influence of the low-frictional force to experimental data, improves the accuracy of experimental data；And stop wind to counterweight and cotton rope using vertical tube
Influence, be further reduced external influence factors, improve the accuracy of experiment；It, can be to greatest extent and by setting receiving magazine
Counterweight loss and damaged in collision are prevented, the service life of experimental provision is improved.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of environmental and durable type physics acceleration test device of the present invention；
Fig. 2 is a kind of structural schematic diagram of the receiving magazine of environmental and durable type physics acceleration test device of the present invention；
Fig. 3 is a kind of structural schematic diagram that the deceleration of environmental and durable type physics acceleration test device is ramed of the present invention.
In figure: 1- pedestal, 2- electrical retractor, 3- telescopic rod, 4- pedestal, 6- first support bar, 7- dotted timer,
8- second support bar, 9- motion pipe, 10- test carriage, 11- paper tape, 13- cotton rope, 14- vertical tube, 15- fixed pulley, 16- weight
Code, 17- connecting rod, 18- receiving magazine, 19- bumper, 20- shrink cylinder, 21- traveller, 22- deceleration are ramed, 23- spring.
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 environmental and durable type physics acceleration test device, including pedestal 1 and pedestal 4, the pedestal 4
It is annular slab, is uniformly equipped with several second support bars 8, the top of all second support bars 8 on the right side of the top of pedestal 4
Equipped with motion pipe 9, the motion pipe 9 is transparent glass tube, and the right-hand end perforation of motion pipe 9 connects vertical tube 14, motion pipe 9
The fixed pulley 15 matched with vertical tube 14 is equipped on the right side of bottom wall of inner cavity, be equipped in motion pipe 9 respectively with fixed pulley 15 and hang down
The experiment mechanism that straight tube 14 matches, the vertical tube 14 is transparent glass tube, and by the way that motion pipe 9 is arranged, experiment is greatly reduced
The friction of motion of mechanism improves the accuracy of experimental data to reduce influence of the frictional force to experimental data；And using vertically
Pipe 14 stops influence of the wind to counterweight 16 and cotton rope 13, is further reduced external influence factors, improves the accuracy of experiment.
Embodiment 2
The present embodiment is being further described on the basis of embodiment 1, and the experiment mechanism includes test carriage 10 and gets ready
Timer 7, the test carriage 10 are located in motion pipe 9, and the right-hand end of test carriage 10 is fixedly connected with cotton rope 13, the cotton rope
13 other end is through fixed pulley 15 and is fixedly connected with the counterweight 16 matched with vertical tube 14, pulls cotton rope by counterweight 16
13, so that test carriage 10 be driven to do acceleration linear motion to the right along motion pipe 9.
The dotted timer 7 is located at the left side of motion pipe 9, and dotted timer 7 is fixedly connected on by first support bar 6
The top left hand of pedestal 4, dotted timer 7 are connected to the left-hand end of test carriage 10 by paper tape 11, and test carriage 10 is to the right
When doing acceleration linear motion, paper tape 11 is pulled to move, and then recorded on paper tape 11 by dotted timer 7, adopted convenient for the later period
Collect experimental data, is checked.
The left-hand end of the vertical tube 14 is uniformly equipped with several connecting rods 17, and the other end of the connecting rod 17 is fixed to be connected
The right-hand end in pedestal 4 is connect, to improve the stability of vertical tube 14.
Embodiment 3
The present embodiment is being further described on the basis of embodiment 1, and the top left hand of the pedestal 1 is uniformly equipped with several
The top of electrical retractor 2, the telescopic rod 3 on the electrical retractor 2 is fixedly connected on the bottom end of pedestal 4, passes through electricity
Dynamic telescopic device 2 stretches out or withdraws telescopic rod 3, and then adjusts the height of pedestal 4, to adjust the height of entire experimental provision,
It carries out convenient for the experimenter of different heights using improving the practical convenience of entire experimental provision.
The receiving magazine 18 matched with vertical tube 14 is equipped on the right side of the top of the pedestal 1, the receiving magazine 18 is top
Open type structure, the interior cavity inner sleeve of receiving magazine 18 are equipped with bumper 19, and the bumper 19 is that sponge material is selected to be made,
The counterweight 16 fallen out of vertical tube 14 is received by receiving magazine 18, prevents counterweight 16 to be scattered in ground, Loss occurs
Occur；And pass through the setting of bumper 19, direct collision between counterweight 16 and the internal chamber wall of receiving magazine 18 is prevented, counterweight is worn
16, improve the service life of counterweight 16.
The bottom wall of inner cavity center of the receiving magazine 18 is equipped with shrink cylinder 20, and the shrink cylinder 20 is the cylinder knot of top opening
Structure, the bottom wall of inner cavity of shrink cylinder 20 be equipped with spring 23, and the top of the spring 23 is fixedly connected with to be matched with shrink cylinder 20
Traveller 21 is to be slidably connected between the traveller 21 and shrink cylinder 20, and the top of traveller 21 is fixedly connected with to match with counterweight 16
The deceleration of conjunction rams 22, and it 22 is that plastic foam material is selected to be made that the deceleration, which is ramed, and deceleration rams 22 in vertical direction
It is upper corresponding with vertical tube 14, after counterweight 16 is fallen out of vertical tube 14, directly impinges upon deceleration and ram on 22, cooperation spring
23, buffer deceleration is carried out to counterweight 16, to reduce the impact force that counterweight 16 is directly fallen, protects counterweight 16 to greatest extent,
Improve the service life of experimental provision.
The working principle of embodiment 1-3 pulls cotton rope 13 by counterweight 16, to drive test carriage 10 along motion pipe
9 do to the right acceleration linear motion pulls paper tape 11 to move when test carriage 10 does to the right acceleration linear motion, and then by beating
Point timer 7 records on paper tape 11, is convenient for post-collection experimental data, is checked；In experiment, counterweight 16 then passes through vertical
Pipe 14 is fallen directly into receiving magazine 18, convenient for protecting to counterweight 16；Before experiment, stretches out or receive by electrical retractor 2
Telescopic rod 3 is returned, and then adjusts the height of pedestal 4, to adjust the height of entire experimental provision, convenient for the experimenter of different heights
It carries out using improving the practical convenience of entire experimental provision.
The innovation of the invention consists in that the rolling friction of test carriage 10 is greatly reduced by the way that motion pipe 9 is arranged, thus
Influence of the frictional force to experimental data is reduced, the accuracy of experimental data is improved；And stop wind to counterweight 16 using vertical tube 14
With the influence of cotton rope 13, external influence factors are further reduced, improve the accuracy of experiment.
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 (10)
1. a kind of environmental and durable type physics acceleration test device, including pedestal (1) and pedestal (4), the top right side of pedestal (4)
Uniformly it is equipped with several second support bars (8), which is characterized in that the top of all second support bars (8) is equipped with motion pipe
(9), motion pipe (9) is transparent glass tube, right-hand end perforation connection vertical tube (14) of motion pipe (9), the inner cavity of motion pipe (9)
The fixed pulley (15) matched with vertical tube (14) is equipped on the right side of bottom wall, be equipped in motion pipe (9) respectively with fixed pulley (15) with
And the experiment mechanism that vertical tube (14) matches, vertical tube (14) is transparent glass tube.
2. a kind of environmental and durable type physics acceleration test device according to claim 1, which is characterized in that experiment mechanism
Including test carriage (10) and dotted timer (7), test carriage (10) is located in motion pipe (9), the right side of test carriage (10)
Side is fixedly connected cotton rope (13), and the other end of cotton rope (13) through fixed pulley (15) and is fixedly connected with and vertical tube (14) matching
The counterweight (16) of conjunction.
3. a kind of environmental and durable type physics acceleration test device according to claim 2, which is characterized in that get timing ready
Device (7) is located at the left side of motion pipe (9), and dotted timer (7) is fixedly connected on the top of pedestal (4) by first support bar (6)
End left side, dotted timer (7) are connected to the left-hand end of test carriage (10) by paper tape (11).
4. a kind of environmental and durable type physics acceleration test device according to claim 2, which is characterized in that vertical tube
(14) left-hand end is uniformly equipped with several connecting rods (17), and the other end of connecting rod (17) is fixedly connected on the right side of pedestal (4)
Side.
5. a kind of environmental and durable type physics acceleration test device according to claim 1, which is characterized in that pedestal (1)
Top left hand be uniformly equipped with several electrical retractors (2), the top of the telescopic rod (3) on electrical retractor (2) is solid
Surely it is connected to the bottom end of pedestal (4).
6. a kind of environmental and durable type physics acceleration test device according to claim 5, which is characterized in that pedestal (1)
Top on the right side of be equipped with the receiving magazine (18) that matches with vertical tube (14), receiving magazine (18) is top open type structure, is received
The interior cavity inner sleeve of case (18) is equipped with bumper (19).
7. a kind of environmental and durable type physics acceleration test device according to claim 6, which is characterized in that bumper
It (19) is that sponge material is selected to be made.
8. a kind of environmental and durable type physics acceleration test device according to claim 6, which is characterized in that receiving magazine
(18) bottom wall of inner cavity center is equipped with shrink cylinder (20), and shrink cylinder (20) is the cylindrical structure of top opening, shrink cylinder (20)
Bottom wall of inner cavity is equipped with spring (23), and the top of spring (23) is fixedly connected with the traveller (21) matched with shrink cylinder (20), sliding
It is to be slidably connected between column (21) and shrink cylinder (20), the top of traveller (21) is fixedly connected with to be subtracted with what counterweight (16) matched
Speed rams (22).
9. a kind of environmental and durable type physics acceleration test device according to claim 8, which is characterized in that deceleration is ramed
(22) be select plastic foam material be made, deceleration ram (22) it is corresponding with vertical tube (14) in the vertical direction.
10. a kind of environmental and durable type physics acceleration test device according to claim 1, which is characterized in that pedestal (4)
It is annular slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910102253.2A CN109637299A (en) | 2019-02-01 | 2019-02-01 | A kind of environmental and durable type physics acceleration test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910102253.2A CN109637299A (en) | 2019-02-01 | 2019-02-01 | A kind of environmental and durable type physics acceleration test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109637299A true CN109637299A (en) | 2019-04-16 |
Family
ID=66064752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910102253.2A Pending CN109637299A (en) | 2019-02-01 | 2019-02-01 | A kind of environmental and durable type physics acceleration test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109637299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706560A (en) * | 2019-11-21 | 2020-01-17 | 江苏盐西世纪教育产业项目开发有限公司 | Real sense formula speed experiment presentation device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88206899U (en) * | 1988-06-05 | 1988-12-28 | 杜广鼎 | Combined mechanics experimental device |
| US6773264B2 (en) * | 2002-10-18 | 2004-08-10 | Arthur Joseph Schoendorff | Teaching apparatus for mechanics principles |
| CN201853395U (en) * | 2010-03-23 | 2011-06-01 | 王光军 | Three-dimensional experimental demonstration instrument of Newton's second law of motion |
| CN203217843U (en) * | 2013-01-11 | 2013-09-25 | 北京工业大学 | A permanent magnet interactive power generation display device |
| CN205354473U (en) * | 2016-01-07 | 2016-06-29 | 陈昱璋 | Even linear motion laboratory bench with higher speed |
| CN106157757A (en) * | 2016-08-26 | 2016-11-23 | 侯明 | A kind of Novel physical laboratory table |
| CN206097618U (en) * | 2016-07-29 | 2017-04-12 | 张海钰 | Experimental device for be used for verifying newton second law |
| CN207008922U (en) * | 2017-05-05 | 2018-02-13 | 冯梦姿 | A kind of Newton's second law experimental provision |
| CN107705676A (en) * | 2017-10-17 | 2018-02-16 | 解维睿 | A kind of high school physicses speed experiments learning simulation device |
| CN108022484A (en) * | 2017-12-22 | 2018-05-11 | 赵耀 | A kind of Physical Experiment friction force demonstration device |
| CN207425181U (en) * | 2017-09-06 | 2018-05-29 | 魏云峰 | A kind of high school physics uniformly accelerated motion tester |
| CN207799974U (en) * | 2018-01-01 | 2018-08-31 | 冷如冰 | A kind of acceleration of gravity physics facility |
-
2019
- 2019-02-01 CN CN201910102253.2A patent/CN109637299A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88206899U (en) * | 1988-06-05 | 1988-12-28 | 杜广鼎 | Combined mechanics experimental device |
| US6773264B2 (en) * | 2002-10-18 | 2004-08-10 | Arthur Joseph Schoendorff | Teaching apparatus for mechanics principles |
| CN201853395U (en) * | 2010-03-23 | 2011-06-01 | 王光军 | Three-dimensional experimental demonstration instrument of Newton's second law of motion |
| CN203217843U (en) * | 2013-01-11 | 2013-09-25 | 北京工业大学 | A permanent magnet interactive power generation display device |
| CN205354473U (en) * | 2016-01-07 | 2016-06-29 | 陈昱璋 | Even linear motion laboratory bench with higher speed |
| CN206097618U (en) * | 2016-07-29 | 2017-04-12 | 张海钰 | Experimental device for be used for verifying newton second law |
| CN106157757A (en) * | 2016-08-26 | 2016-11-23 | 侯明 | A kind of Novel physical laboratory table |
| CN207008922U (en) * | 2017-05-05 | 2018-02-13 | 冯梦姿 | A kind of Newton's second law experimental provision |
| CN207425181U (en) * | 2017-09-06 | 2018-05-29 | 魏云峰 | A kind of high school physics uniformly accelerated motion tester |
| CN107705676A (en) * | 2017-10-17 | 2018-02-16 | 解维睿 | A kind of high school physicses speed experiments learning simulation device |
| CN108022484A (en) * | 2017-12-22 | 2018-05-11 | 赵耀 | A kind of Physical Experiment friction force demonstration device |
| CN207799974U (en) * | 2018-01-01 | 2018-08-31 | 冷如冰 | A kind of acceleration of gravity physics facility |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706560A (en) * | 2019-11-21 | 2020-01-17 | 江苏盐西世纪教育产业项目开发有限公司 | Real sense formula speed experiment presentation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104535590B (en) | Glass chipping detection machine | |
| CN203941067U (en) | A kind of pick-up unit for devitrified glass shock-testing | |
| CN108956071B (en) | A seismic test device for civil engineering structures | |
| CN104913986B (en) | Small-sized hydraulic buffer impact test method and device | |
| CN208458969U (en) | A kind of pendulum impact test device | |
| CN108957350A (en) | A kind of telephone testing machine of multi-station high efficient | |
| CN109637299A (en) | A kind of environmental and durable type physics acceleration test device | |
| CN211121724U (en) | Thrust test equipment | |
| CN201852750U (en) | Electronic knitwear lengthening instrument | |
| CN208921572U (en) | A kind of no white point composite material impact test machine | |
| CN209043524U (en) | A kind of adjustment of tubular construction part quality center of mass and detection device | |
| CN207528419U (en) | A kind of helmet absorbs collision energy performance aircraft | |
| CN207007294U (en) | A kind of high-precision reinspection system of weighing | |
| CN203799535U (en) | Maximum static friction force exploration device | |
| CN205862661U (en) | A kind of energy converts teaching demonstration device | |
| CN207007462U (en) | Fall-down test device | |
| CN209673573U (en) | A kind of strength of glass test device | |
| CN215448706U (en) | Cosmetic detector | |
| CN210570638U (en) | Building detects uses anticollision horizon rule device | |
| CN109238457A (en) | A kind of engine of boat and ship vibration gauge | |
| CN207610802U (en) | A kind of weight beam with peak value display function | |
| CN214347938U (en) | O-shaped silica gel ring detection equipment for deep sea water exploration detection equipment | |
| CN217747180U (en) | Blood cell analyzer probe anticollision sample rack | |
| CN211717939U (en) | Sponge rebound rate measuring device | |
| CN210728525U (en) | Electronic long-jump board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |