CN209928745U - Balance force demonstration device for high school physics teaching - Google Patents
Balance force demonstration device for high school physics teaching Download PDFInfo
- Publication number
- CN209928745U CN209928745U CN201920196246.9U CN201920196246U CN209928745U CN 209928745 U CN209928745 U CN 209928745U CN 201920196246 U CN201920196246 U CN 201920196246U CN 209928745 U CN209928745 U CN 209928745U
- Authority
- CN
- China
- Prior art keywords
- high school
- physics teaching
- school physics
- balance force
- demonstration device
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Electrically Operated Instructional Devices (AREA)
Abstract
The utility model relates to a balance force demonstration device for high school physics teaching, which belongs to the technical field of teaching experiment demonstration, and comprises a vertically placed display board, wherein the bottom of the display board is fixedly connected with a lifting mechanism and a triangular bracket fixedly connected with the lifting mechanism; two pins are movably inserted into the surface of the display board, the two pins are connected to the top of a wood block through rubber bands, and each rubber band is provided with a tension meter and a laser lamp; the bottom of billet is through one the rubber band is connected with a weight bearing basket, the lower extreme of show board is provided with a weight and accomodates the groove, has all set up tensiometer and laser lamp on three rubber bands that are connected with the billet, at the in-process of demonstration, can show the size and the direction of power in real time, has improved the demonstration effect.
Description
Technical Field
The utility model relates to a balanced force presentation device is used in high school's physics teaching belongs to teaching experiment demonstration technical field.
Background
The force refers to the interaction between objects, and the composition and decomposition of the force, the balance force and the like are all necessary courses for high school physics.
The Chinese utility model specification CN206741782U discloses a balance force demonstration teaching aid for high school physics teaching, which comprises a base, a support rod, a triangular component, a triangular block, a spring, a connecting port and an object block, wherein the support rod is connected with the base through a rotating shaft, a limiting structure is arranged at the joint of the support rod and the base, the included angle between the support rod and the base is limited to be 0-90 degrees, the support rod is a telescopic rod, the triangular block is positioned at the upper part of the base, a semicircular vertical clamping groove is formed in the left side of the triangular block, the triangular block is clamped with the lower section of the support rod, the connecting port is positioned at the right end of the triangular component, one end of the spring is connected with the connecting port, and the other end of the spring is connected with the;
this equilibrium force demonstration teaching aid for high school physics teaching passes through the characteristic of spring, triangle piece and object block demonstration equilibrium force, but this demonstration teaching aid lacks specific numerical display at the in-process of demonstration, and the size and the direction of relevant power all can't observe directly perceivedly, so demonstration effect is general.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model overcomes current defect, provides a balanced power presentation device for high school physics teaching, can effectively solve the problem in the background art.
In order to solve the technical problem, the utility model provides a following technical scheme:
a balance force demonstration device for high school physics teaching comprises a vertically placed demonstration board, wherein the bottom of the demonstration board is fixedly connected with a lifting mechanism and a triangular bracket fixedly connected with the lifting mechanism;
two pins are movably inserted into the surface of the display board, the two pins are connected to the top of a wood block through rubber bands, and each rubber band is provided with a tension meter and a laser lamp;
the bottom of billet is connected with a weight bearing basket through one the rubber band, the lower extreme of show board is provided with a weight and accomodates the groove.
Further, the display board is made of cork.
Further, the lifting mechanism comprises a lifting rod and a supporting column, a threaded hole is formed in the top of the supporting column, threads are arranged on the outer surface of the lower end of the lifting rod, and the lifting rod is movably connected into the threaded hole through the threads.
Furthermore, a positioning hole matched with a limiting pin for use is further formed in the joint of the lifting rod and the supporting column.
Furthermore, hooks are arranged at the center positions of the top and the bottom of the wood block, and the rubber bands are fixedly connected to the hooks.
Further, the outer side of the weight storage groove is connected with a sealing cover through a hinge.
The utility model discloses beneficial effect: the three rubber bands connected with the wood block are respectively provided with the tension meter and the laser lamp, so that the magnitude and the direction of the force can be displayed in real time in the demonstration process, and the demonstration effect is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a front view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a partial schematic structural view of the present invention;
FIG. 4 is a schematic structural view of the weight bearing basket of the present invention;
reference numbers in the figures: 1. a display board; 2. a lifting mechanism; 2-1, a lifting rod; 2-2, a support column; 2-3, a threaded hole; 2-4, screw thread; 3. a triangular bracket; 4. a pin; 5. a rubber band; 6. a tension meter; 7. a laser light; 8. a weight bearing basket; 9. a weight storage groove; 10. positioning holes; 11. hooking; 12. sealing the cover; 13. and (4) wood blocks.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in the figure, the balance force demonstration device for the high school physics teaching comprises a display board 1 which is vertically placed, wherein the display board 1 is made of cork wood, the bottom of the display board 1 is fixedly connected with a lifting mechanism 2 and a triangular bracket 3 which is fixedly connected with the lifting mechanism 2, the lifting mechanism 2 comprises a lifting rod 2-1 and a supporting column 2-2, the top of the supporting column 2-2 is provided with a threaded hole 2-3, the outer surface of the lower end of the lifting rod 2-1 is provided with a thread 2-3 and is movably connected in the threaded hole 2-3 through the thread 2-3, before the demonstration experiment is carried out, the height of the display board 1 is adjusted, the display board 1 is rotated to enable the display board 1 to ascend, a positioning hole 10 matched with a limiting pin is formed in the joint of the lifting rod 2-1 and the supporting column 2-2, and then the lifting rod 2-1 is positioned through the limiting pin.
Two pins 4 are movably inserted into the surface of the display board 1, the two pins 4 are connected to the top of a wood block 13 through rubber bands 5, and each of the rubber bands 5 is provided with a tension meter 6 and a laser lamp 7.
The bottom of billet 13 is connected with a weight bearing basket 8 through a rubber band 5, the lower extreme of show board 1 is provided with a weight and accomodates groove 9, when carrying out the demonstration experiment, at first insert two pins 4 respectively and establish on show board 1, the tensiometer 6 and the laser lamp 7 on the rubber band 5 that are connected with pin 4 can indicate tensile size and the direction of pulling force respectively, the pulling force size can be directly read out from the tensiometer, open laser lamp 7, the direction of pulling force can comparatively conveniently measure the angle of the pulling force direction of two rubber bands 5 on the rubber band 5 that are connected with pin 4 through the protractor, after measuring the pulling force size and the direction on the rubber band 5 that are connected with pin 4, continue to read out the pulling force size of the tensiometer 6 of billet 13 bottom again, through the calculation: the pulling forces of the two rubber bands 5 connected with the pin 4 are synthesized, so that the effect of the balance force can be clearly and visually demonstrated, wherein the resultant force of the two rubber bands 5 connected with the pin 4 is the same as the pulling force of the rubber band 5 at the bottom of the wood block 13, the directions of the resultant forces are opposite, and the directions of the resultant forces of the weight bearing basket 8 and the wood block 13 are vertically downward.
The central point of 13 tops of billet and bottom all is provided with couple 11, and the equal fixed connection of rubber band 5 is on couple 11, and there is a closing cap 12 in the weight is accomodate the groove 9 outside through hinged joint, and the weight is accomodate groove 9 and is used for accomodating the weight, puts the weight in weight bearing basket 8, changes the weight bearing basket 8 total mass size of 13 bottoms of billet, can carry out the multiunit experiment, has convincing power more, just the utility model discloses simple structure carries also comparatively conveniently.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a balanced force presentation device for high school physics teaching, includes vertical show board (1) of placing, its characterized in that: the bottom of the display board (1) is fixedly connected with a lifting mechanism (2) and a triangular bracket (3) fixedly connected with the lifting mechanism (2);
two pins (4) are movably inserted into the surface of the display board (1), the two pins (4) are connected to the top of a wood block (13) through rubber bands (5), and each rubber band (5) is provided with a tension meter (6) and a laser lamp (7);
the bottom of billet (13) is connected with a weight bearing basket (8) through one rubber band (5), the lower extreme of show board (1) is provided with a weight and accomodates groove (9).
2. The balance force demonstration device for high school physics teaching according to claim 1, characterized in that: the display board (1) is made of cork.
3. The balance force demonstration device for high school physics teaching according to claim 1, characterized in that: the lifting mechanism (2) comprises a lifting rod (2-1) and a supporting column (2-2), a threaded hole (2-3) is formed in the top of the supporting column (2-2), threads (2-4) are arranged on the outer surface of the lower end of the lifting rod (2-1), and the lifting mechanism is movably connected into the threaded hole (2-3) through the threads (2-4).
4. The balance force demonstration device for high school physics teaching according to claim 3, characterized in that: the joint of the lifting rod (2-1) and the supporting column (2-2) is also provided with a positioning hole (10) matched with a limiting pin for use.
5. The balance force demonstration device for high school physics teaching according to claim 1, characterized in that: the middle positions of the top and the bottom of the wood block (13) are respectively provided with a hook (11), and the rubber bands (5) are fixedly connected to the hooks (11).
6. The balance force demonstration device for high school physics teaching according to claim 3, characterized in that: the outer side of the weight accommodating groove (9) is connected with a sealing cover (12) through a hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920196246.9U CN209928745U (en) | 2019-02-14 | 2019-02-14 | Balance force demonstration device for high school physics teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920196246.9U CN209928745U (en) | 2019-02-14 | 2019-02-14 | Balance force demonstration device for high school physics teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209928745U true CN209928745U (en) | 2020-01-10 |
Family
ID=69068240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920196246.9U Expired - Fee Related CN209928745U (en) | 2019-02-14 | 2019-02-14 | Balance force demonstration device for high school physics teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209928745U (en) |
-
2019
- 2019-02-14 CN CN201920196246.9U patent/CN209928745U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207336260U (en) | A kind of falling sphere experimental machine | |
| CN207458371U (en) | A kind of new Japanese Teaching ancillary equipment | |
| CN206659514U (en) | A kind of mechanical drawing teaching shows fixing device with drawing | |
| CN209928745U (en) | Balance force demonstration device for high school physics teaching | |
| CN204831908U (en) | Push away tensile test device | |
| CN206805869U (en) | A kind of inclined plane demonstrating device for senior middle school physics teaching | |
| CN206683942U (en) | A kind of mechanical stretch experimental provision | |
| CN202677674U (en) | Physical lever teaching aid convenient to carry and demonstrate | |
| CN209230901U (en) | A kind of mechanical structure test platform | |
| CN211294341U (en) | Higher mathematics special teaching show board | |
| CN206897446U (en) | A kind of bench for chemistry experiment with clamping function | |
| CN208351771U (en) | Strain gauge measurement multifunctional combination testing stand | |
| CN206960327U (en) | A kind of drawing force testing device for silastic press key finished product | |
| CN207248469U (en) | Shake table test fixture | |
| CN206583735U (en) | pendulum impact test device | |
| CN213150094U (en) | Demonstration device for engineering mechanics experiments | |
| CN208240243U (en) | A kind of novel physical lever teaching aid | |
| CN209945343U (en) | Distance measuring equipment for civil engineering | |
| CN210091508U (en) | Demonstration device for relation between surface tension of water and air pressure | |
| CN108523420A (en) | A kind of information technology is given lessons frame | |
| CN204964288U (en) | Mechanics of materials testing machine | |
| CN216527695U (en) | Balance force demonstration device for physics teaching | |
| CN204621454U (en) | A kind of welding skill training platform device | |
| CN109406317A (en) | A kind of test device and method of film machine direction tear | |
| CN111261004A (en) | Centrifugal force safety experiment table for teaching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 Termination date: 20210214 |