CN215770198U - Demonstration equipment is verified in teaching of newton's third law - Google Patents
Demonstration equipment is verified in teaching of newton's third law Download PDFInfo
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- CN215770198U CN215770198U CN202122026908.8U CN202122026908U CN215770198U CN 215770198 U CN215770198 U CN 215770198U CN 202122026908 U CN202122026908 U CN 202122026908U CN 215770198 U CN215770198 U CN 215770198U
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- iron core
- electronic scale
- supporting platform
- newton
- core coil
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 43
- 238000012795 verification Methods 0.000 claims abstract description 14
- 230000005389 magnetism Effects 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 35
- 229910052802 copper Inorganic materials 0.000 claims description 35
- 239000010949 copper Substances 0.000 claims description 35
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a Newton's third law teaching verification demonstration device, which comprises a bottom plate, a moving motor train unit, a poking arm, a portable electronic scale and a working power supply, wherein a bearing is arranged in the middle of the top of a scale body of the portable electronic scale, and a metal ball is connected to a suspender at the bottom of the scale body through a connecting wire; the top surfaces of the shifting arm and the supporting platform are respectively hinged with the portable electronic scale through a bearing by a fixed pin, so that a metal ball connected with the portable electronic scale hinged on the shifting arm is positioned on an iron core coil arranged at the top of the moving motor train unit, and the metal ball connected with the portable electronic scale hinged on the supporting platform is positioned on the supporting platform and is close to the metal ball on the iron core coil; and a power supply is transmitted to the iron core coil through the conductive guide rail, and the iron core coil generates magnetism and transmits the magnetism to the metal ball at the top, so that the two adjacent metal balls generate mutual attraction. The utility model has simple structure and convenient and fast use.
Description
Technical Field
The utility model relates to a physical teaching aid, in particular to a Newton's third law teaching verification demonstration device.
Background
Newton's law of motion includes three laws of Newton's first law of motion, Newton's second law of motion and Newton's third law of motion, which are summarized in the book "mathematical principles of Natural philosophy" by Isaac-Newton in 1687. Wherein the third law reveals the nature of the output: force is the interaction between objects. But present physical teaching mode is comparatively single, and in physics class, the teacher generally all utilizes the lecture method to explain this partial content, and the experiment that also hardly utilizes is very few simulates, and the teacher can write a lot of physical formulas on the blackboard and give instruction and strengthen the training to the student, and more formula occupies more classroom time, and the student lacks actual exercise for classroom teaching is boring and tasteless, influences teaching time and teaching quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides a Newton's third law teaching verification demonstration device, and can effectively solve the problems that the prior physical teaching mode is single, and the teaching time and the teaching quality are influenced.
The utility model is realized by the following technical scheme:
a Newton's third law teaching verification demonstration apparatus comprises a bottom plate, a moving motor train unit, a poking arm, a portable electronic scale and a working power supply, wherein a supporting platform, a conductive guide rail and a poking arm moving guide seat are sequentially arranged at the top of the bottom plate; one end of the poking arm is movably connected with the poking arm moving guide seat, and the other end of the poking arm is positioned above the conductive guide rail; the moving motor train unit is movably connected to the conductive guide rail and connected with the poking arm, and the moving motor train unit is driven to move left and right on the conductive guide rail through the poking arm; the middle of the top of the portable electronic scale body is provided with a bearing, and a suspender at the bottom of the scale body is connected with a metal ball through a connecting wire; the top surfaces of the shifting arm and the supporting platform are respectively hinged with the portable electronic scale through a bearing by a fixing pin, the metal ball connected with the portable electronic scale hinged on the shifting arm is positioned on an iron core coil arranged at the top of the moving motor train unit, and the metal ball connected with the portable electronic scale hinged on the supporting platform is positioned on the supporting platform and is close to the metal ball on the iron core coil; the supporting platform is arc-shaped towards the edge of the moving motor train unit, the conductive guide rail and the shifting arm moving guide seat are also arc-shaped, and the circle center of each arc is located on the central shaft of the fixing pin on the supporting platform; the conductive guide rail is electrically connected with the working power supply, the power supply is transmitted to the iron core coil through the conductive guide rail, the iron core coil generates magnetism and transmits the magnetism to the metal balls at the top, and therefore the two metal balls which are close to each other generate mutual attraction.
The working power supply is an adjustable direct current power supply with 4-6V, and the output current is more than 20A.
The bottom plate is also provided with a micro vibration motor which is positioned near the conductive guide rail and is electrically connected with the working power supply; an eccentric wheel is arranged on an output shaft of the miniature vibration motor.
The moving vehicle group comprises a transverse moving trolley and a longitudinal moving trolley, wherein a longitudinal copper rail is arranged at the top of the transverse moving trolley, and the longitudinal moving trolley is arranged at the top of the transverse moving trolley and is movably connected with the longitudinal copper rail; the iron core coil is arranged at the top of the longitudinal moving trolley, and the metal ball placed on the iron core coil is as high as the metal ball on the supporting platform.
The transverse moving trolley comprises longitudinal copper rails, copper pulleys and an insulating plate, wherein the four copper pulleys are arranged at the bottom of the insulating plate, the two longitudinal copper rails which are parallel to each other are arranged at the top of the insulating plate, and the two ends of each longitudinal copper rail penetrate through the insulating plate and are connected with the copper pulleys.
The longitudinal moving trolley comprises copper pulleys, an insulating plate and an iron core coil, wherein the bottom of the insulating plate is provided with four copper pulleys; the iron core coil is arranged on the top of the insulating plate and penetrates through the insulating plate through a wire to be electrically connected with the copper pulley.
The iron core arranged in the iron core coil is cylindrical, and a through hole is formed in the middle of the iron core; and limiting the metal ball placed at the top of the iron core through the through hole.
The poking arm comprises an electronic scale mounting seat, a sliding seat, an extension plate and a poking fork; the shifting fork is connected to one end of an extension plate, the other end of the extension plate is connected with the electronic scale mounting seat, and the sliding seat is connected with the electronic scale mounting seat; the sliding seat is provided with pins; the electronic scale comprises a support platform, a poking arm moving guide seat and a poking arm, wherein the poking arm moving guide seat is provided with a guide sliding groove, and when the poking arm is installed on the poking arm moving guide seat, the plug pin is positioned in the guide sliding groove, so that the top surface of the electronic scale installation seat and the top surface of the support platform are on the same horizontal plane.
The shifting arm and the shifting arm moving guide seat are both made of aluminum plates.
The supporting platform comprises a top plate and side plates, and the two sides of the top plate are respectively provided with the side plates; the top plate is supported on the bottom plate through the side plates on two sides; the miniature vibration motor is arranged in the supporting platform, and is shielded and protected through the top plate and the side plates, so that the service life of the miniature vibration motor is further prolonged.
The utility model has simple structure, convenient and fast use and can clearly display the properties of large interaction force, collinearity, same change and same disappearance; the practice ability of students can be exercised, and the teaching quality can be improved.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic view of the longitudinal cut-away structure of fig. 1.
In the figure:
the motor train unit comprises a base plate 1, a motor train unit 2, a transverse moving trolley 21, a longitudinal copper rail 211, copper pulleys 212, insulating plates 213, a longitudinal moving trolley 22, a poking arm 3, an electronic scale mounting seat 31, a sliding seat 32, a pin 321, an extending plate 33, a shifting fork 34, a portable electronic scale 4, a bearing 41, a connecting wire 42, a metal ball 43, a working power supply 5, a supporting platform 6, a top plate 61, a side plate 62, a conductive guide rail 7, a poking arm moving guide seat 8, a fixing pin 9, an iron core coil 10, an iron core 101 and a miniature vibrating motor 11.
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.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution:
a Newton's third law teaching verification demonstration apparatus comprises a bottom plate 1, a movable vehicle group 2, a poking arm 3, a portable electronic scale 4 and a working power supply 5, wherein a supporting platform 6, a conductive guide rail 7 and a poking arm moving guide seat 8 are sequentially arranged at the top of the bottom plate 1; one end of the toggle arm 3 is movably connected with the toggle arm moving guide seat 8, and the other end of the toggle arm 3 is positioned above the conductive guide rail 7; the moving motor train unit 2 is movably connected to the conductive guide rail 7 and connected with the poking arm 3, and the moving motor train unit 2 is driven to move left and right on the conductive guide rail 7 through the poking arm 3; the middle of the top of the scale body of the portable electronic scale 4 is provided with a bearing 41, and a suspension rod at the bottom of the scale body is connected with a metal ball 43 through a connecting wire 42; the top surfaces of the toggle arm 3 and the supporting platform 6 are respectively hinged with the portable electronic scale 4 through a fixed pin 9 arranged on the top surface and a bearing 41, so that the metal ball 43 connected with the portable electronic scale 4 hinged on the toggle arm 3 is positioned on the iron core coil 10 arranged on the top of the mobile motor train unit 2, and the metal ball 43 connected with the portable electronic scale 4 hinged on the supporting platform 6 is positioned on the supporting platform 6 and is close to the metal ball 43 on the iron core coil 10; the supporting platform 6 is arc-shaped towards the edge of the moving motor train unit 2, the conductive guide rail 7 and the shifting arm moving guide seat 8 are also arc-shaped, and the circle center of each arc is located on the central shaft of the fixing pin 9 on the supporting platform 6; the conductive guide rail 7 is electrically connected with the working power supply 5, the power supply is transmitted to the iron core coil 10 through the conductive guide rail 7, the iron core coil 10 generates magnetism and transmits the magnetism to the metal ball 43 at the top, and therefore the two metal balls 43 which are close to each other generate mutual attraction.
The working power supply 5 is an adjustable DC power supply of 4-6V and can be modified by a 5V DC power supply with the output more than 20A. The modification method comprises the following steps: the trimming resistor for trimming voltage is replaced by a potentiometer with the same resistance value, and the potentiometer is installed on the shell. The output voltage can be changed between 4-6V by adjusting the potentiometer.
The bottom plate 1 is also provided with a micro vibration motor 11, and the micro vibration motor 11 is positioned near the conductive guide rail 7 and is electrically connected with the working power supply 5; an eccentric wheel is arranged on an output shaft of the miniature vibration motor 11.
The motor moving train unit 2 comprises a transverse moving trolley 21 and a longitudinal moving trolley 22, wherein the top of the transverse moving trolley 21 is provided with a longitudinal copper rail 211, and the longitudinal moving trolley 22 is arranged at the top of the transverse moving trolley 21 and is movably connected with the longitudinal copper rail 211; the iron core coil 10 is arranged on top of the longitudinal moving trolley 22, and the metal ball 43 placed on the iron core coil 10 is at the same height as the metal ball 43 on the supporting platform 6.
The transverse moving trolley 21 comprises longitudinal copper rails 211, copper pulleys 212 and insulating plates 213, four copper pulleys 212 are arranged at the bottom of each insulating plate 213, two longitudinal copper rails 211 which are parallel to each other are arranged at the top of each insulating plate 213, and two ends of each longitudinal copper rail 211 penetrate through the insulating plates 213 to be connected with the copper pulleys 212.
The longitudinal moving trolley 22 comprises copper pulleys 212, an insulating plate 213 and an iron core coil 10, wherein the bottom of the insulating plate 213 is provided with four copper pulleys 212; the iron core coil 10 is disposed on the top of the insulating plate 213, and is electrically connected to the copper pulley 212 through a wire passing through the insulating plate 213.
The iron core 101 arranged in the iron core coil 10 is cylindrical, and a through hole is arranged in the middle of the iron core; through the through-hole is to placing iron core 101 top metal ball 43 carries on spacingly, and in this embodiment, the metal ball 43 at iron core 101 top is spacing the back, still fixed through glue for metal ball 43 rigidity avoids metal ball 43 to have the hidden danger that breaks away from iron core 101, further improves demonstration efficiency. The iron core 101 may be optionally used with a magnet gathering member behind the horn magnet in response to environmental waste.
The poking arm 3 comprises an electronic scale mounting seat 31, a sliding seat 32, an extension plate 33 and a shifting fork 34; the shifting fork 34 is connected to one end of an extension plate 33, the other end of the extension plate 33 is connected to the electronic scale mounting seat 31, and the sliding seat 32 is connected to the electronic scale mounting seat 31; the sliding seat 32 is provided with a plug pin 321; the poking arm moving guide seat 8 is provided with a guide sliding groove, when the poking arm 3 is installed on the poking arm moving guide seat 8, the pin 321 is located in the guide sliding groove, and the top surface of the electronic scale installation seat 31 and the top surface of the supporting platform 6 are on the same horizontal plane. Certainly, a handle can be arranged on the sliding seat 32 for convenient movement, so that the user can conveniently hold the handle to drive the shifting arm 3 to move left and right along the shifting arm movement guide seat 8. Specifically, in the embodiment, the shifting forks 34 of the shifting arm 3 are located at two sides of the transverse moving trolley 21, so that the transverse moving trolley 21 can be driven to move simultaneously when the shifting arm 3 is moved.
The shifting arm 3 and the shifting arm moving guide seat 8 are both made of aluminum plates.
The supporting platform 6 comprises a top plate 61 and side plates 62, and the two sides of the top plate 61 are respectively provided with the side plates 62; the top plate 61 is supported on the bottom plate 1 through the side plates 62 on two sides; the micro vibration motor 11 is arranged in the supporting platform 6, and the micro vibration motor 11 is shielded and protected by the top plate 61 and the side plate 62, so that the service life of the micro vibration motor 11 is further prolonged.
In use, when the working power supply 5 is turned on, the iron core coil 10 makes the top metal ball 43 generate magnetism to attract the metal ball 43 on the supporting platform 6, at this time, the mutual attraction of the two metal balls 43 can be displayed on the portable electronic scale 4 which is respectively connected, and the connecting lines 42 of the two metal balls 43 can be in a straight line. By adjusting the power supply voltage, the attractive forces displayed on the two portable electronic scales 4 can be simultaneously increased or decreased. The poking arm 3 moves left and right to drive the iron core coil 10 to move left and right at the same time, at the moment, the metal balls 43 on the supporting platform 6 also move along with the movement, and the connecting lines 42 of the two metal balls are always on the same straight line; the attractive force displayed on the two portable electronic scales 4 is reset to zero (the attractive force disappears) when the power is turned off.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a demonstration equipment is verified in teaching of Newton's third law which characterized in that: comprises a bottom plate (1), a movable vehicle group (2), a poking arm (3), a portable electronic scale (4) and a working power supply (5); the top of the bottom plate (1) is sequentially provided with a supporting platform (6), a conductive guide rail (7) and a poking arm moving guide seat (8); one end of the poking arm (3) is movably connected with the poking arm moving guide seat (8), and the other end of the poking arm (3) is positioned above the conductive guide rail (7); the moving motor train unit (2) is movably connected to the conductive guide rail (7) and is connected with the poking arm (3), and the moving motor train unit (2) is driven to move left and right on the conductive guide rail (7) through the poking arm (3); a bearing (41) is arranged in the middle of the top of the scale body of the portable electronic scale (4), and a metal ball (43) is connected to a suspension rod at the bottom of the scale body through a connecting wire (42); the top surfaces of the shifting arm (3) and the supporting platform (6) are respectively hinged with the portable electronic scale (4) through a fixing pin (9) arranged on the top surface through a bearing 41, the metal ball (43) connected with the portable electronic scale (4) hinged on the shifting arm (3) is positioned on a core coil (10) arranged on the top of the moving motor train unit (2), and the metal ball (43) connected with the portable electronic scale (4) hinged on the supporting platform (6) is positioned on the supporting platform (6) and close to the metal ball (43) on the core coil (10); the supporting platform (6) is arc-shaped towards the edge of the moving motor train unit (2), the conductive guide rail (7) and the shifting arm moving guide seat (8) are also arc-shaped, and the circle center of each arc is located on the central shaft of the fixing pin (9) on the supporting platform (6); the conductive guide rail (7) is electrically connected with the working power supply (5), the power supply is transmitted to the iron core coil (10) through the conductive guide rail (7), the iron core coil (10) generates magnetism and transmits the magnetism to the metal ball (43) at the top, and therefore the two metal balls (43) which are close to each other generate mutual attraction.
2. Newton's third law teaching verification demonstration apparatus according to claim 1, wherein: the working power supply (5) is an adjustable direct current power supply with 4-6V, and the output current is more than 20A.
3. Newton's third law teaching verification demonstration apparatus according to claim 1, wherein: the bottom plate (1) is also provided with a micro vibration motor (11), and the micro vibration motor (11) is positioned near the conductive guide rail (7) and is electrically connected with the working power supply (5); an eccentric wheel is arranged on an output shaft of the miniature vibration motor (11).
4. Newton's third law teaching verification demonstration apparatus according to claim 1, wherein: the motor moving train unit (2) comprises a transverse moving trolley (21) and a longitudinal moving trolley (22), wherein a longitudinal copper rail (211) is arranged at the top of the transverse moving trolley (21), and the longitudinal moving trolley (22) is arranged at the top of the transverse moving trolley (21) and is movably connected with the longitudinal copper rail (211); the iron core coil (10) is arranged on the top of the longitudinal moving trolley (22), and the metal balls (43) placed on the iron core coil (10) are the same in height with the metal balls (43) on the supporting platform (6).
5. Newton's third law teaching verification demonstration apparatus according to claim 4, wherein: the transverse moving trolley (21) comprises longitudinal copper rails (211), copper pulleys (212) and insulating plates (213), wherein the four copper pulleys (212) are arranged at the bottom of the insulating plates (213), the two longitudinal copper rails (211) which are parallel to each other are arranged at the top of the insulating plates (213), and the two ends of the longitudinal copper rails (211) penetrate through the insulating plates (213) and are connected with the copper pulleys (212).
6. Newton's third law teaching verification demonstration apparatus according to claim 4, wherein: the longitudinal moving trolley (22) comprises copper pulleys (212), an insulating plate (213) and an iron core coil (10), wherein the bottom of the insulating plate (213) is provided with four copper pulleys (212); the iron core coil (10) is arranged on the top of the insulating plate (213) and penetrates through the insulating plate (213) through a wire to be electrically connected with the copper pulley (212).
7. Newton's third law teaching verification demonstration apparatus according to claim 1, wherein: an iron core (101) arranged in the iron core coil (10) is cylindrical, and a through hole is formed in the middle of the iron core; the metal ball (43) placed on the top of the iron core (101) is limited through the through hole.
8. Newton's third law teaching verification demonstration apparatus according to claim 1, wherein: the poking arm (3) comprises an electronic scale mounting seat (31), a sliding seat (32), an extension plate (33) and a shifting fork (34); the shifting fork (34) is connected to one end of the extension plate (33), the other end of the extension plate (33) is connected with the electronic scale mounting seat (31), and the sliding seat (32) is connected with the electronic scale mounting seat (31); the sliding seat (32) is provided with a plug pin (321); the electronic scale is characterized in that a guide sliding groove is formed in the shifting arm moving guide seat (8), when the shifting arm (3) is installed on the shifting arm moving guide seat (8), the plug pin (321) is located in the guide sliding groove, and the top surface of the electronic scale installation seat (31) and the top surface of the supporting platform (6) are located on the same horizontal plane.
9. Newton's third law teaching verification demonstration apparatus according to claim 1, wherein: the poking arm (3) and the poking arm moving guide seat (8) are both made of aluminum plates.
10. Newton's third law teaching verification demonstration apparatus as claimed in claim 3, wherein: the supporting platform (6) comprises a top plate (61) and side plates (62), and the two sides of the top plate (61) are respectively provided with the side plates (62); the top plate (61) is supported on the bottom plate (1) through the side plates (62) on two sides; the micro vibration motor (11) is arranged in the supporting platform (6), and the micro vibration motor (11) is shielded and protected through the top plate (61) and the side plate (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122026908.8U CN215770198U (en) | 2021-08-26 | 2021-08-26 | Demonstration equipment is verified in teaching of newton's third law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122026908.8U CN215770198U (en) | 2021-08-26 | 2021-08-26 | Demonstration equipment is verified in teaching of newton's third law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215770198U true CN215770198U (en) | 2022-02-08 |
Family
ID=80079077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122026908.8U Expired - Fee Related CN215770198U (en) | 2021-08-26 | 2021-08-26 | Demonstration equipment is verified in teaching of newton's third law |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215770198U (en) |
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2021
- 2021-08-26 CN CN202122026908.8U patent/CN215770198U/en not_active Expired - Fee Related
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Granted publication date: 20220208 |
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