CN113516893A - Acceleration experimental device for middle school physical mechanics learning - Google Patents
Acceleration experimental device for middle school physical mechanics learning Download PDFInfo
- Publication number
- CN113516893A CN113516893A CN202010271954.1A CN202010271954A CN113516893A CN 113516893 A CN113516893 A CN 113516893A CN 202010271954 A CN202010271954 A CN 202010271954A CN 113516893 A CN113516893 A CN 113516893A
- Authority
- CN
- China
- Prior art keywords
- paper tape
- fixedly connected
- center
- guide rail
- dotting
- 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
Images
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
Abstract
The invention provides an acceleration experimental device for middle school physics mechanics study, and relates to the technical field of experimental devices. This acceleration experimental apparatus is used in middle school's physics mechanics study, including the supporting baseplate, the top of supporting baseplate is rotated and is connected with guide rail mechanism, guide rail mechanism's top is provided with the travelling car, the one end fixedly connected with and the corresponding buffer gear of travelling car at guide rail mechanism top, one side of buffer gear is provided with the drive mechanism corresponding with the travelling car, the one end that buffer gear was kept away from at guide rail mechanism's top is provided with paper tape jack, one side that paper tape jack was kept away from to paper tape guide mechanism is provided with the automatic mechanism of dotting. Through designing buffer gear, drive mechanism, stop gear, paper tape jack, quick clamping mechanism and automatic mechanism of dotting, both can make things convenient for quick completion acceleration simulation experiment, also can guarantee the accuracy of experimental data simultaneously, work efficiency improves greatly.
Description
Technical Field
The invention relates to the technical field of experimental devices, in particular to an acceleration experimental device for physical and mechanical study in middle school.
Background
The physical model (usually called as model for short, but different from the conceptual model in this case) is a smaller or larger replica that can simulate the physical object, the physical model in middle school can be divided into three types, that is, a material model, a state model, and a process model, the model is an abstraction of the actual problem, each model is established with certain conditions and application range, when the student learns and applies the model to solve the problem, the student needs to find out the use conditions of the model, and uses the model according to the actual conditions, such as the running of a train, whether the model can be regarded as particles, and the student needs to decide according to the concept of the particles and the motion condition of the train to be researched, when the train passes through the bridge, the length of the train is generally not ignored relative to the length of the bridge, so the train cannot be regarded as particles, when the train needs to go from Beijing to Shanghai, the length of the train is far shorter than the distance from Beijing to Shanghai, the acceleration is a physical quantity in physics, is a vector, is mainly applied to classical physics and is generally represented by a letter a, the unit of acceleration in an international unit system is meter per second of velocity, the acceleration is the rate of change of the velocity vector with respect to time, and describes the speed of direction and magnitude change of the velocity.
The acceleration experiment is the common experimental project of physics in the beginning, and traditional acceleration experimental apparatus structural design is too simple, can't guarantee experimental data's accuracy at actual operation's in-process, and operation flow is comparatively complicated moreover, need change the paper tape repeatedly in the experimentation, can waste a large amount of operating time, for this reason, we have developed a new acceleration experimental apparatus for middle school physics mechanics study.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides an acceleration experimental device for middle school physics and mechanics study, which solves the problems that the traditional acceleration experimental device is too simple in structural design, the accuracy of experimental data cannot be ensured in the actual operation process, the operation flow is complex, paper tapes need to be replaced repeatedly in the experiment process, and a large amount of operation time is wasted.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an acceleration experimental device for middle school physical mechanics study comprises a supporting base plate, wherein the top of the supporting base plate is rotatably connected with a guide rail mechanism, the top of the guide rail mechanism is provided with a movable trolley, two groups of rotating pulleys corresponding to the guide rail mechanism are respectively installed on two sides of the bottom of the movable trolley, the center of one end of the movable trolley is fixedly connected with a mounting ring, one end of the top of the guide rail mechanism is fixedly connected with a buffer mechanism corresponding to the movable trolley, one side of the buffer mechanism is provided with a traction mechanism corresponding to the movable trolley, one side of the top of the guide rail mechanism is provided with a limiting mechanism corresponding to the movable trolley, one end of the top of the guide rail mechanism, far away from the buffer mechanism, is provided with a paper tape retracting mechanism, the center of one end of the movable trolley is provided with a quick clamping mechanism corresponding to the paper tape retracting mechanism, the automatic dotting machine is characterized in that a paper tape guide mechanism is fixedly connected to one side of the paper tape retracting and releasing mechanism, an automatic dotting mechanism is arranged on one side, away from the paper tape retracting and releasing mechanism, of the paper tape guide mechanism, a supporting bolt corresponding to the supporting base plate is installed on the top, away from one end of the buffering mechanism, of the top of the guide rail mechanism, and a threaded hole corresponding to the supporting bolt is formed in the center of one end of the guide rail mechanism.
Preferably, the guide rail mechanism comprises a fixed base, the top of the supporting base plate is rotatably connected with the fixed base, and fixed guide rails are fixedly connected to two sides of the top of the fixed base.
Preferably, buffer gear includes solid fixed ring, the solid fixed ring of one end fixedly connected with at guide rail mechanism top, solid fixed ring's one side is provided with the buffer board corresponding with the travelling car, the central fixedly connected with bracing piece of buffer board one side, the through-hole corresponding with the bracing piece has been seted up at the center of solid fixed ring one end, reset spring has been cup jointed to the outer wall of bracing piece, one side fixedly connected with rubber gasket of bracing piece is kept away from to the buffer board.
Preferably, the traction mechanism comprises a traction rope, the center of the mounting ring is fixedly connected with the traction rope, one side of the outer wall of the fixing ring is fixedly connected with the fixing support, the center of the top end of the fixing support is rotatably connected with a guide pulley corresponding to the traction rope, and one end, far away from the mounting ring, of the traction rope is connected with a counterweight hook in a hanging mode.
Preferably, stop gear includes the fixed block, one side fixedly connected with fixed block at unable adjustment base top, the torsional spring is installed at the top at fixed block center, the one end fixedly connected with and the corresponding spacing steel wire of travelling car of torsional spring, the rectangular channel corresponding with spacing steel wire is seted up to one side at unable adjustment base top, the one end fixedly connected with fixed plate of torsional spring is kept away from to spacing steel wire.
Preferably, the paper tape retraction jack comprises a mounting rack, the mounting rack is arranged at one end, far away from the buffering mechanism, of the top of the guide rail mechanism, a paper tape reel is installed at the center of the mounting rack, and a dotting paper tape is wound on the outer wall of the paper tape reel.
Preferably, the rapid clamping mechanism comprises a rotating support, the rotating support is arranged at the center of one end of the moving trolley, a rotating plate is rotatably connected to the center of the rotating support, and a paper tape clamping plate corresponding to the dotting paper tape is fixedly connected to one side of the inner wall of the rotating plate.
Preferably, the paper tape guide mechanism comprises a supporting plate, the supporting plate is fixedly connected to one side of the paper tape retracting and releasing mechanism, a fixing frame corresponding to the dotting paper tape is fixedly connected to the top of the supporting plate, and a limiting rod corresponding to the dotting paper tape is fixedly connected to the top of the center of the fixing frame.
Preferably, the automatic dotting mechanism comprises a first limiting block and a second limiting block, one side, far away from the paper tape retracting mechanism, of the paper tape guiding mechanism is provided with the first limiting block and the second limiting block respectively, an automatic dotting device is installed between the first limiting block and the second limiting block, a locking bolt corresponding to the automatic dotting device is installed at the center of the second limiting block, a locking gasket corresponding to the automatic dotting device is fixedly connected to the center of one end of the locking bolt, and a paper guide ring corresponding to the dotting paper tape is fixedly connected to the center of the top of the first limiting block.
The working principle is as follows: when the experimental device is used, the guide rail mechanism 2 can be supported by the supporting bolt 13, so that the guide rail mechanism 2 generates a certain inclination angle, and subsequent experiments are facilitated, then the movable trolley 3 can be placed on the guide rail mechanism 2, after the traction mechanism 7 is installed, the acceleration condition of the movable trolley 3 under the condition of different traction forces can be simulated by adding weights with different weights on the counterweight hook 704, the buffer mechanism 6 can play a certain buffer purpose for the movable trolley 3 when the movable trolley 3 impacts the buffer plate 602, the movable trolley 3 is prevented from being damaged due to overlarge impact force, the paper tape reel 902 can be installed by the paper tape retracting mechanism 9, meanwhile, the dotting paper tape 903 is automatically released during experiments, so that the time for repeatedly installing a large amount of dotting paper tapes 903 is saved, one end of the dotting paper tape 903 can be quickly fixed at the tail part of the movable trolley 3 by the quick clamping mechanism 10, the automatic dotting device 1203 on the automatic dotting mechanism 12 can perform fast and automatic dotting on the dotting paper tape 903 drawn by the moving trolley 3, so that the acceleration condition of the moving trolley 3 can be calculated according to the dotting distance under the conditions of different traction forces.
Advantageous effects
The invention provides an acceleration experimental device for physical mechanics learning in middle school. The method has the following beneficial effects:
1. this middle school is acceleration experimental apparatus for physics mechanics is learnt, through the simple structure of design, both can carry out quick adjustment according to the experiment needs, and its operation flow is also comparatively simple simultaneously, need not to change the paper tape of new repeatedly, has saved a large amount of operating time, convenient and practical.
2. This middle school is acceleration experimental apparatus for physics mechanics study, through designing buffer gear, drive mechanism, stop gear, paper tape jack, quick clamping mechanism and automatic mechanism of dotting, both can make things convenient for quick completion acceleration simulation experiment, also can guarantee the accuracy of experimental data simultaneously, work efficiency improves greatly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the working state of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic view of the mounting structure of the limiting mechanism of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 at B;
FIG. 6 is a schematic view of the paper tape guide mechanism of the present invention;
fig. 7 is a schematic structural diagram of the automatic dotting mechanism of the present invention.
Wherein, 1, supporting the bottom plate; 2. a guide rail mechanism; 201. a fixed base; 202. fixing the guide rail; 3. moving the trolley; 4. rotating the pulley; 5. a mounting ring; 6. a buffer mechanism; 601. a fixing ring; 602. a buffer plate; 603. a support bar; 604. a through hole; 605. a return spring; 606. a rubber gasket; 7. a traction mechanism; 701. a hauling rope; 702. fixing a bracket; 703. a guide pulley; 704. a counterweight hook; 8. a limiting mechanism; 801. a fixed block; 802. a torsion spring; 803. a limiting steel wire; 804. a rectangular groove; 805. a fixing plate; 9. a paper tape retracting mechanism; 901. a mounting frame; 902. a tape reel; 903. dotting the paper tape; 10. a rapid clamping mechanism; 1001. rotating the bracket; 1002. a rotating plate; 1003. a paper tape clamping plate; 11. a paper tape guide mechanism; 1101. a support plate; 1102. a fixed mount; 1103. a limiting rod; 12. an automatic dotting mechanism; 1201. a first stopper; 1202. a second limiting block; 1203. an automatic dotting device; 1204. locking the bolt; 1205. a locking washer; 1206. a paper guide ring; 13. a support bolt; 14. a threaded bore.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-7, the embodiment of the invention provides an acceleration experimental apparatus for physical mechanics learning in middle school, which comprises a supporting base plate 1, a guide rail mechanism 2 is rotatably connected to the top of the supporting base plate 1, a moving trolley 3 is arranged on the top of the guide rail mechanism 2, two sets of rotating pulleys 4 corresponding to the guide rail mechanism 2 are respectively arranged on two sides of the bottom of the moving trolley 3, a mounting ring 5 is fixedly connected to the center of one end of the moving trolley 3, a buffer mechanism 6 corresponding to the moving trolley 3 is fixedly connected to one end of the top of the guide rail mechanism 2, a traction mechanism 7 corresponding to the moving trolley 3 is arranged on one side of the buffer mechanism 6, a limit mechanism 8 corresponding to the moving trolley 3 is arranged on one side of the top of the guide rail mechanism 2, a paper tape retracting mechanism 9 is arranged on one end of the top of the guide rail mechanism 2 away from the buffer mechanism 6, a rapid clamping mechanism 10 corresponding to the paper tape retracting mechanism 9 is arranged on the center of one end of the moving trolley 3, one side fixedly connected with paper tape guiding mechanism 11 of paper tape jack 9, one side that paper tape guiding mechanism 11 kept away from paper tape jack 9 is provided with automatic mechanism 12 of dotting, the top of buffer gear 6 one end is kept away from at the top of guide rail mechanism 2 installs the stay bolt 13 corresponding with supporting baseplate 1, screw hole 14 corresponding with stay bolt 13 is seted up at the center of guide rail mechanism 2 one end, we can utilize stay bolt 13 to prop up guide rail mechanism 2, thereby make guide rail mechanism 2 produce certain inclination, thereby make things convenient for subsequent experiment.
The guide rail mechanism 2 comprises a fixed base 201, the top of the supporting base plate 1 is rotatably connected with the fixed base 201, and fixed guide rails 202 are fixedly connected to two sides of the top of the fixed base 201.
Limiting mechanism 8 includes fixed block 801, one side fixedly connected with fixed block 801 at unable adjustment base 201 top, torsional spring 802 is installed at the top at fixed block 801 center, the spacing steel wire 803 that one end fixedly connected with of torsional spring 802 corresponds with travelling car 3, rectangular channel 804 corresponding with spacing steel wire 803 is seted up to one side at unable adjustment base 201 top, the one end fixedly connected with fixed plate 805 of torsional spring 802 is kept away from to spacing steel wire 803, limiting mechanism 8 can play limiting displacement to travelling car 3 before the experiment, the spacing groove (not drawn in the figure) corresponding with spacing steel wire 803 is seted up at the center of travelling car 3 bottom, under spacing state, spacing steel wire 803 is fixed a position in the spacing groove, after we pressed fixed plate 805, spacing steel wire 803 can leave the spacing groove, thereby make travelling car 3 acceleration under the effect of traction go.
The paper tape retracting and releasing mechanism 9 comprises an installation frame 901, the installation frame 901 is arranged at one end, far away from the buffering mechanism 6, of the top of the guide rail mechanism 2, a paper tape reel 902 is installed at the center of the installation frame 901, a dotting paper tape 903 is wound on the outer wall of the paper tape reel 902, the paper tape reel 902 can be installed by the paper tape retracting and releasing mechanism 9, meanwhile, the dotting paper tape 903 is automatically discharged during an experiment, and therefore the time for repeatedly installing a large number of dotting paper tapes 903 is saved.
The quick clamping mechanism 10 comprises a rotating support 1001, the rotating support 1001 is arranged at the center of one end of the moving trolley 3, the center of the rotating support 1001 is rotatably connected with a rotating plate 1002, one side of the inner wall of the rotating plate 1002 is fixedly connected with a paper tape clamping plate 1003 corresponding to the dotting paper tape 903, and the quick clamping mechanism 10 can quickly fix one end of the dotting paper tape 903 at the tail of the moving trolley 3.
The paper tape guide mechanism 11 comprises a support plate 1101, the support plate 1101 is fixedly connected to one side of the paper tape retracting and releasing mechanism 9, a fixing frame 1102 corresponding to the dotting paper tape 903 is fixedly connected to the top of the support plate 1101, a limiting rod 1103 corresponding to the dotting paper tape 903 is fixedly connected to the top of the center of the fixing frame 1102, and the paper tape guide mechanism 11 plays a limiting and guiding role in the moving dotting paper tape 903 by utilizing the fixing frame 1102 and the limiting rod 1103 so as to prevent the dotting paper tape 903 from shifting in the dotting process.
The automatic dotting mechanism 12 comprises a first limiting block 1201 and a second limiting block 1202, a first limiting block 1201 and a second limiting block 1202 are respectively arranged on one side, far away from a paper tape retracting mechanism 9, of a paper tape guiding mechanism 11, the first limiting block 1201 and the second limiting block 1202 are respectively provided with the first limiting block 1201 and the second limiting block 1202, an automatic dotting device 1203 is installed between the first limiting block 1201 and the second limiting block 1202, a locking bolt 1204 corresponding to the automatic dotting device 1203 is installed in the center of the second limiting block 1202, a locking gasket 1205 corresponding to the automatic dotting device 1203 is fixedly connected to the center of one end of the locking bolt 1204, a paper guide ring 1206 corresponding to the dotting paper tape 903 is fixedly connected to the center of the top of the first limiting block 1201, the automatic dotting device 1203 on the automatic dotting mechanism 12 can fast and automatically dotting the dotting 903 pulled by the moving trolley 3, and therefore the acceleration condition of the moving trolley 3 can be calculated according to dotting distances under the condition of different traction forces.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a middle school's physical mechanics learns with acceleration experimental apparatus, includes supporting baseplate (1), its characterized in that: the top of the supporting base plate (1) is rotatably connected with a guide rail mechanism (2), the top of the guide rail mechanism (2) is provided with a movable trolley (3), two groups of rotating pulleys (4) corresponding to the guide rail mechanism (2) are respectively installed on two sides of the bottom of the movable trolley (3), a mounting ring (5) is fixedly connected to the center of one end of the movable trolley (3), one end of the top of the guide rail mechanism (2) is fixedly connected with a buffer mechanism (6) corresponding to the movable trolley (3), one side of the buffer mechanism (6) is provided with a traction mechanism (7) corresponding to the movable trolley (3), one side of the top of the guide rail mechanism (2) is provided with a limiting mechanism (8) corresponding to the movable trolley (3), one end of the top of the guide rail mechanism (2) far away from the buffer mechanism (6) is provided with a paper tape retracting and releasing mechanism (9), the center of travelling car (3) one end is provided with quick clamping mechanism (10) corresponding with paper tape jack (9), one side fixedly connected with paper tape guiding mechanism (11) of paper tape jack (9), one side that paper tape guiding mechanism (11) kept away from paper tape jack (9) is provided with automatic mechanism (12) of dotting, buffer gear (6) one end was kept away from at the top of guide rail mechanism (2) top is installed and is had supporting bolt (13) corresponding with supporting baseplate (1), screw hole (14) corresponding with supporting bolt (13) are seted up at the center of guide rail mechanism (2) one end.
2. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1, wherein: the guide rail mechanism (2) comprises a fixed base (201), the top of the supporting base plate (1) is rotatably connected with the fixed base (201), and fixed guide rails (202) are fixedly connected to two sides of the top of the fixed base (201).
3. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1, wherein: buffer gear (6) are including solid fixed ring (601), the solid fixed ring of one end fixedly connected with (601) at guide rail mechanism (2) top, one side of solid fixed ring (601) is provided with buffer board (602) corresponding with travelling car (3), center fixedly connected with bracing piece (603) of buffer board (602) one side, through-hole (604) corresponding with bracing piece (603) have been seted up at the center of solid fixed ring (601) one end, reset spring (605) have been cup jointed to the outer wall of bracing piece (603), one side fixedly connected with rubber packing piece (606) of bracing piece (603) are kept away from to buffer board (602).
4. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1 or 3, wherein: traction mechanism (7) include haulage rope (701), the center fixedly connected with haulage rope (701) of collar (5), one side fixedly connected with fixed bolster (702) of fixed ring (601) outer wall, the center on fixed bolster (702) top is rotated and is connected with guide pulley (703) corresponding with haulage rope (701), the one end that collar (5) were kept away from in haulage rope (701) has been hung and has been connect counter weight couple (704).
5. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1 or 2, wherein: stop gear (8) are including fixed block (801), one side fixedly connected with fixed block (801) at unable adjustment base (201) top, torsional spring (802) are installed at the top at fixed block (801) center, the one end fixedly connected with of torsional spring (802) and the corresponding spacing steel wire (803) of removal dolly (3), rectangular channel (804) corresponding with spacing steel wire (803) are seted up to one side at unable adjustment base (201) top, the one end fixedly connected with fixed plate (805) of torsional spring (802) are kept away from to spacing steel wire (803).
6. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1, wherein: the paper tape retracting mechanism (9) comprises an installation frame (901), the installation frame (901) is arranged at one end, far away from the buffering mechanism (6), of the top of the guide rail mechanism (2), a paper tape reel (902) is installed at the center of the installation frame (901), and a dotting paper tape (903) is wound on the outer wall of the paper tape reel (902).
7. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1, wherein: the rapid clamping mechanism (10) comprises a rotating support (1001), the rotating support (1001) is arranged at the center of one end of the movable trolley (3), a rotating plate (1002) is rotatably connected to the center of the rotating support (1001), and a paper tape clamping plate (1003) corresponding to the dotting paper tape (903) is fixedly connected to one side of the inner wall of the rotating plate (1002).
8. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1, wherein: the paper tape guide mechanism (11) comprises a supporting plate (1101), the supporting plate (1101) is fixedly connected to one side of the paper tape retracting mechanism (9), a fixing frame (1102) corresponding to the dotting paper tape (903) is fixedly connected to the top of the supporting plate (1101), and a limiting rod (1103) corresponding to the dotting paper tape (903) is fixedly connected to the top of the center of the fixing frame (1102).
9. The acceleration experimental apparatus for physical mechanics learning of middle school according to claim 1, wherein: the automatic dotting mechanism comprises an automatic dotting mechanism (12), a first limiting block (1201) and a second limiting block (1202), wherein the first limiting block (1201) and the second limiting block (1202) are respectively arranged on one side, away from a paper tape retracting mechanism (9), of a paper tape guide mechanism (11), an automatic dotting device (1203) is installed between the first limiting block (1201) and the second limiting block (1202), a locking bolt (1204) corresponding to the automatic dotting device (1203) is installed at the center of the second limiting block (1202), a locking gasket (1205) corresponding to the automatic dotting device (1203) is fixedly connected to the center of one end of the locking bolt (1204), and a paper guide ring (1206) corresponding to the dotting paper tape (903) is fixedly connected to the center of the top of the first limiting block (1201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271954.1A CN113516893A (en) | 2020-04-09 | 2020-04-09 | Acceleration experimental device for middle school physical mechanics learning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271954.1A CN113516893A (en) | 2020-04-09 | 2020-04-09 | Acceleration experimental device for middle school physical mechanics learning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113516893A true CN113516893A (en) | 2021-10-19 |
Family
ID=78060110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010271954.1A Pending CN113516893A (en) | 2020-04-09 | 2020-04-09 | Acceleration experimental device for middle school physical mechanics learning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113516893A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633744A (en) * | 2017-11-08 | 2018-01-26 | 刘乐凝 | A kind of Experiments of Machanics teaching appliance |
| CN107945627A (en) * | 2017-09-30 | 2018-04-20 | 铜仁学院 | A kind of multi-functional single pendulum teaching test instrument |
| CN108364547A (en) * | 2018-02-08 | 2018-08-03 | 枣庄学院 | A kind of machinery system dynamics experimental provision |
| US20180222719A1 (en) * | 2015-10-27 | 2018-08-09 | China University Of Mining And Technology | Variable gradient inclined running container traction rope adjustment apparatus and method |
| CN209133033U (en) * | 2018-04-16 | 2019-07-19 | 淮阴师范学院 | A kind of teaching aid equipment of physics teaching |
| CN209591241U (en) * | 2019-01-26 | 2019-11-05 | 陈丽 | A kind of novel middle school physical experiment speed measuring device |
-
2020
- 2020-04-09 CN CN202010271954.1A patent/CN113516893A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180222719A1 (en) * | 2015-10-27 | 2018-08-09 | China University Of Mining And Technology | Variable gradient inclined running container traction rope adjustment apparatus and method |
| CN107945627A (en) * | 2017-09-30 | 2018-04-20 | 铜仁学院 | A kind of multi-functional single pendulum teaching test instrument |
| CN107633744A (en) * | 2017-11-08 | 2018-01-26 | 刘乐凝 | A kind of Experiments of Machanics teaching appliance |
| CN108364547A (en) * | 2018-02-08 | 2018-08-03 | 枣庄学院 | A kind of machinery system dynamics experimental provision |
| CN209133033U (en) * | 2018-04-16 | 2019-07-19 | 淮阴师范学院 | A kind of teaching aid equipment of physics teaching |
| CN209591241U (en) * | 2019-01-26 | 2019-11-05 | 陈丽 | A kind of novel middle school physical experiment speed measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110316657B (en) | Anti-swing control system for crane weight and control method thereof | |
| CN104006943B (en) | Pond boats and ships collision experiment system and collision experiment method | |
| CN105758609A (en) | Bridge pier collision impact test device based on ship anti-collision device and test method of test device | |
| CN201343385Y (en) | Concentrated driving finished product checking crane | |
| CN107101836B (en) | Flexible leg testing device and testing method | |
| CN113516893A (en) | Acceleration experimental device for middle school physical mechanics learning | |
| CN110154003A (en) | A kind of structure changes wire saws parallel robot for vehicle impact testing | |
| CN106976706A (en) | A kind of yarn reel suspension line feeding device | |
| CN209038893U (en) | A kind of fluid pressure type is anti-to wave automatic butt crane | |
| CN203450992U (en) | Bidirectional safety tongs | |
| CN111056043A (en) | Constant force unloading device and method for wave resistance test of water surface aircraft | |
| CN103482495B (en) | Sliding device and counterweight hitching device | |
| CN207217186U (en) | A kind of cable-former | |
| CN214495456U (en) | Crane part anti-collision device | |
| JP4376376B2 (en) | Towing test equipment | |
| CN201387685Y (en) | Bridge-type crane semi-physical model | |
| CN209921297U (en) | Cableway type patrol instrument | |
| CN201824105U (en) | Planet rotating wheel device | |
| CN217688207U (en) | Automatic impact drop hammer testing device | |
| CN204079163U (en) | Position-adjustable and there is the vertical swelling device of the elevator of dodging space | |
| CN209247305U (en) | A kind of slope impact tester hoisting mechanism | |
| CN208615944U (en) | A kind of van-hanging pulley rail becomes rail mechanism and cableway net system | |
| CN213025061U (en) | Wrist arm simulation test device | |
| CN217296685U (en) | Upward-drawing constant-tension pay-off rack | |
| CN218927107U (en) | Machine tool counterweight device with anti-seismic function |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211019 |