Pendulum multi-element exploration instrument teaching aid

Abstract

The utility model discloses a multi-element exploration instrument teaching aid for a pendulum, and relates to the technical field of teaching aids for pendulums. The two supporting mechanisms are fixed to the left side and the right side of the upper end of the base correspondingly; the transverse rod is supported and fixed through the two supporting mechanisms, two vertical rods are fixedly connected to the upper surface of the transverse rod, and the two vertical rods are arranged on the left side and the right side respectively; the plurality of swinging mechanisms are arranged on the vertical rod in a sleeving manner; the two multifunctional rulers are both fixed to the upper end of the base, and the two multifunctional rulers are arranged on the left side and the right side respectively. According to the utility model, experiment exploration can be carried out on two sides at the same time, mutual comparison is more visual and obvious, exploration time is saved, influence of multiple elements such as different pendulum weights or different pendulum lengths or different pendulum amplitudes on pendulum speed can be explored more conveniently, the multifunctional ruler is innovated, and observation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pendulum teaching aids, and in particular to a pendulum multi-element exploration instrument teaching aid. Background Technology

[0002] The pendulum teaching aid is a commonly used teaching aid for teaching knowledge related to "pendulum". Currently, the traditional pendulum experimental equipment has a relatively simple structure. In actual use, too many measurements are required, the ruler needs to be used multiple times, the data observed by the naked eye is inaccurate, and the ordinary display panel is not conducive to observation. These problems not only increase experimental errors, but also affect the smoothness of experimental teaching and students' inquiry experience.

[0003] To overcome these limitations, we innovatively designed a multi-element pendulum exploration teaching aid. The design aims not only to allow students to explore the relationship between pendulum length and the number of swings, but also to further observe the influence of the pendulum's arc on the swing speed, thereby deepening their understanding of the pendulum's motion characteristics. The actual use has shown good results. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-element exploration instrument for pendulums.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-element exploration instrument teaching aid, comprising:

[0007] Base;

[0008] Two support mechanisms are fixed to the upper left and right sides of the base, respectively.

[0009] The crossbar is supported and fixed by two support mechanisms, and two vertical bars are fixedly connected to the upper surface of the crossbar, with the two vertical bars respectively set on the left and right sides;

[0010] Multiple swing mechanisms, which are mounted on a vertical rod;

[0011] Two multi-functional rulers are fixed to the upper part of the base, and the two multi-functional rulers are respectively set on the left and right sides.

[0012] As a further improvement of this utility model, the support mechanism includes two support rods, which are fixedly arranged in a cross configuration by a pin, and the lower end of the support rod is fixed to the upper end of the base. The crossbar is fixedly connected to the support rod.

[0013] As a further improvement of this utility model, the swing mechanism includes a coil sleeved on a vertical rod, a cycloidal line wound on the coil, a pendulum ball fixed at the end of the cycloidal line away from the coil, a strip groove opened at the end of the horizontal rod, the cycloidal line passing through the strip groove, and the pendulum ball being made of plastic or metal.

[0014] As a further improvement of this utility model, the multifunctional ruler includes an upper semi-circular part and a lower strip part. The surface of the semi-circular part is provided with angle scale lines, and the surface of the strip part is provided with length scale lines.

[0015] As a further improvement of this utility model, a locking bolt is provided through the side wall of the crossbar and screwed to the crossbar. The locking bolt extends into the groove and abuts against the cycloid.

[0016] As a further improvement of this utility model, a timer is provided at the upper end of the base.

[0017] The beneficial effects of this utility model are:

[0018] By setting up a horizontal bar and two vertical bars, experiments can be conducted simultaneously on both sides, making the comparison more intuitive and obvious, saving time and increasing efficiency.

[0019] By setting up multiple swing mechanisms and using a multi-functional ruler, it is possible to flexibly use pendulums of different weights, pendulum lines of different lengths, or pendulum angles, thereby exploring the influence of multiple elements such as different pendulum weights, pendulum lengths, or pendulum amplitudes on the speed of the pendulum.

[0020] This invention allows for simultaneous experimental investigations on both sides, providing a more intuitive and obvious comparison and saving investigation time. It also enables more convenient investigation of the effects of various elements, such as different pendulum weights, lengths, or amplitudes, on the speed of the pendulum. Furthermore, it features an innovative multi-functional ruler, which facilitates observation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a pendulum-based multi-element exploration instrument teaching aid proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a multi-functional ruler for a pendulum-based multi-element exploration instrument teaching aid proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the horizontal bar, vertical bar, swing mechanism, and locking bolt connection of a pendulum multi-element exploration instrument teaching aid proposed in this utility model.

[0024] In the diagram: 1. Base, 2. Timer, 3. Support rod, 4. Pin, 5. Horizontal bar, 6. Vertical bar, 7. Winding coil, 8. Cycloidal line, 9. Multifunctional ruler, 10. Angle scale line, 11. Length scale line, 12. Pendulum ball, 13. Strip groove, 14. Locking bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-3 A multi-element exploration instrument teaching aid, comprising:

[0027] The base 1 has a timer 2 at its upper end. The timer 2 is used to keep track of the number of times the ball 12 swings within a preset time.

[0028] Two support mechanisms are fixed on the upper left and right sides of the base 1 respectively. Each support mechanism includes two support rods 3. The two support rods 3 are fixedly arranged in a cross manner by a pin 4. The pin 4 passes through the support rod 3, and the lower end of the support rod 3 is fixed to the upper end of the base 1. The support rod 3 is glued and fixed to the upper end of the base 1. The crossbar 5 is glued and fixedly connected to the support rod 3.

[0029] The horizontal bar 5 is supported and fixed by two support mechanisms. Two vertical bars 6 are fixedly connected to the upper surface of the horizontal bar 5. The vertical bars 6 are glued and fixed to the horizontal bar 5. The two vertical bars 6 are set on the left and right sides respectively.

[0030] Multiple swing mechanisms are mounted on the vertical rod 6. Each swing mechanism includes a winding coil 7 mounted on the vertical rod 6, with a cycloidal line 8 wound on the winding coil 7. A cycloidal ball 12 is fixed to the end of the cycloidal line 8 away from the winding coil 7. The cycloidal ball 12 has a through hole. The cycloidal line 8 passes through the through hole and is then knotted to fix the cycloidal ball 12 to the cycloidal line 8. A strip groove 13 is provided at the end of the horizontal rod 5. The cycloidal line 8 passes through the strip groove 13. The cycloidal ball 12 is made of plastic or metal and has a set weight of 50 grams, 100 grams, or 200 grams. Furthermore, a locking bolt 14 is provided through the side wall of the horizontal rod 5 and screwed into the horizontal rod 5. The locking bolt 14 extends into the strip groove 13 and abuts against the cycloidal line 8. By tightening the locking bolt 14, the cycloidal line 8 can be fixed, thereby ensuring the stability of the swing length.

[0031] Two multi-functional rulers 9 are fixed to the upper end of the base 1, and are positioned left and right respectively. Each multi-functional ruler 9 includes an upper semi-circular part and a lower strip part. The surface of the semi-circular part is provided with angle scale lines 10, which are set at intervals of 10 degrees, thus having angles of 10 degrees, 20 degrees, 30 degrees, etc. The surface of the strip part is provided with length scale lines 11, which are set at intervals of 10 centimeters, thus having lengths of 10 centimeters, 20 centimeters, 30 centimeters, etc. By referring to the angle scale lines 10, the pendulum angle can be accurately set during the experiment, and by referring to the length scale lines 11, the pendulum length can be accurately set during the experiment.

[0032] In the first experiment, the lengths of the pendulum strings 8 on both sides from below the crossbar 5 to the pendulum bob 12 are different, that is, the pendulum lengths on both sides are adjusted to be different. Then, the weight and swing angle of the pendulum bob 12 on both sides are made the same. The pendulum bob 12 is released, and the timer 2 is used to time 30 seconds. The number of times the pendulum bob 12 swings within 30 seconds is counted. The experiment is repeated three times. The pendulum lengths are different in the three experiments. The data is accurately recorded in the experimental data table to explore the relationship between the speed of the pendulum and the pendulum length.

[0033] The second experiment involved making the weights of the pendulum bobs 12 on both sides different, and then making the pendulum lengths and angles on both sides the same. The pendulum bobs 12 were released, and timer 2 was used to time the event for 30 seconds. The number of swings of the pendulum bobs 12 within 30 seconds was counted. The experiment was repeated three times, with different pendulum lengths each time. The data were accurately recorded in the experimental data table to investigate whether the speed of the pendulum was independent of its weight.

[0034] The third experiment involved making the swing angles on both sides different, and then making the weight and length of the pendulum bobs 12 on both sides the same. The pendulum bobs 12 were released, and timer 2 was used to time the swing for 30 seconds. The number of swings of the pendulum bobs 12 within 30 seconds was counted. The experiment was repeated three times, with different pendulum lengths each time. The data were accurately recorded in the experimental data table to investigate whether the speed of the swing is independent of the swing amplitude.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A multi-element exploration instrument for pendulums, characterized in that, include: Base (1); Two support mechanisms are fixed to the upper left and right sides of the base (1), respectively; The crossbar (5) is supported and fixed by two support mechanisms. Two vertical bars (6) are fixedly connected to the upper surface of the crossbar (5). The two vertical bars (6) are respectively set on the left and right. A strip groove (13) is opened at the end of the crossbar (5). Multiple swing mechanisms are mounted on the two vertical rods (6). Each swing mechanism includes a winding coil (7) mounted on the vertical rod (6), a cycloid (8) is wound on the winding coil (7), and a cycloid ball (12) is fixed at the end of the cycloid ball (8) away from the winding coil (7). The cycloid ball (8) passes through the strip groove (13), and the cycloid ball (12) is made of plastic or metal. Two multi-functional rulers (9) are fixed to the upper end of the base (1), and the two multi-functional rulers (9) are respectively set on the left and right. The multi-functional ruler (9) includes an upper semi-circular part and a lower strip part. An angle scale line (10) is provided on the surface of the semi-circular part, and a length scale line (11) is provided on the surface of the strip part.

2. The multi-element exploration instrument teaching aid of a pendulum according to claim 1, characterized in that, The support mechanism includes two support rods (3), which are fixedly arranged in a cross configuration by a pin (4), and the lower end of the support rod (3) is fixed to the upper end of the base (1). The crossbar (5) is fixedly connected to the support rod (3).

3. The multi-element exploration instrument teaching aid of a pendulum according to claim 1, characterized in that, A locking bolt (14) is threaded through the side wall of the crossbar (5) and screwed to the crossbar (5). The locking bolt (14) extends into the groove (13) and abuts against the cycloid (8).

4. The multi-element exploration instrument teaching aid of a pendulum according to claim 1, characterized in that, A timer (2) is provided on the upper end of the base (1).

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