Simple pendulum motion teaching aid

Abstract

The utility model discloses a simple pendulum motion teaching aid, and belongs to the technical field of experimental devices. The simple pendulum motion teaching aid comprises a frame, wherein a simple pendulum mechanism and a counting mechanism are sequentially arranged in the frame from top to bottom; the simple pendulum mechanism is connected with the frame through a rotating shaft, the simple pendulum mechanism comprises a box body and a lamination at least partially located in the box body, a pressing part is arranged on the box body, the length of the lamination extending out of the box body is adjusted by pressing the pressing part, and a pendulum ball is arranged at the end, away from the box body, of the lamination; the counting mechanism comprises an optocoupler counter and a lifting assembly, the optocoupler counter is located below the swing ball, and the optocoupler counter is connected with the frame through the lifting assembly. The simple pendulum motion teaching aid is convenient to use, the lamination can drive the pendulum ball to swing in the same plane, the swing times of the pendulum ball can be automatically recorded in specific time, students can visually observe and understand the characteristics of simple pendulum motion, and therefore the teaching efficiency is improved.

Description

Technical Field

[0001] The present application relates to a simple pendulum motion teaching tool, belonging to the technical field of experimental devices. Background Art

[0002] Simple pendulum motion refers to the periodic reciprocating motion of an object when subjected to a force whose magnitude is proportional to its displacement and whose direction always points to its equilibrium position. Simple pendulum motion is a fundamental form of mechanical vibration characterized by periodicity, symmetry, and resiliency. Simple pendulum motion has a wide range of applications in nature and engineering. For example, spring oscillators, simple pendulums, and freely swinging doors are all examples of simple pendulum motion. Studying simple pendulum motion in physics instruction can help students gain a deeper understanding of the isochronous nature of pendulums and their underlying principles.

[0003] However, the existing simple pendulum motion experimental device has some defects during use. The pendulum is easily affected by the external environment during the swing process, so it is difficult to always swing in the same plane during the experiment. In addition, the counting process is cumbersome and the probability of counting errors is high, which affects teaching efficiency.

[0004] In order to enable students to observe and understand the characteristics of simple pendulum motion more intuitively, this application proposes a simple pendulum motion teaching aid. Utility Model Content

[0005] In order to solve the above problems, this application proposes a simple pendulum motion teaching aid, which is easy to use. The laminated plates can drive the pendulum ball to swing in the same plane and automatically record the number of swings of the pendulum ball within a specific time, which is conducive to students intuitively observing and understanding the characteristics of simple pendulum motion, thereby improving teaching efficiency.

[0006] The utility model adopts the following technical solutions:

[0007] A simple pendulum motion teaching tool comprises a frame, wherein a simple pendulum mechanism and a counting mechanism are sequentially arranged in the frame from top to bottom;

[0008] The single pendulum mechanism is connected to the frame via a rotating shaft. The single pendulum mechanism includes a box body and a laminate at least partially located within the box body. The box body is provided with a pressing portion, and the length of the laminate extending out of the box body is adjusted by pressing the pressing portion. A pendulum ball is provided at one end of the laminate away from the box body.

[0009] The counting mechanism includes an optical coupler counter and a lifting assembly. The optical coupler counter is located below the pendulum ball, and the optical coupler counter is connected to the frame through the lifting assembly.

[0010] Optionally, a rack is provided in the box body, one end of the rack is connected to the box body through a spring, and the other end is clamped with the laminate and the pressing portion.

[0011] Optionally, the pressing portion includes a pressing strip and a pressing block, the pressing blocks are relatively arranged at two ends of the pressing strip, at least part of the pressing strip is located in the box body, and the pressing block located in the box body is engaged with the rack.

[0012] Optionally, a clamping piece is provided at one end of the lamination away from the swing ball, and the lamination is clamped to the rack via the clamping piece.

[0013] Optionally, a through hole is provided on the pressing strip, at least a portion of the through hole is located inside the box body, and the laminate passes through the through hole.

[0014] Optionally, the laminate is formed by overlapping a plurality of rectangular metal sheets.

[0015] Optionally, the lifting assembly includes a cylinder and a buffer portion, and the cylinder is relatively arranged on both sides of the buffer portion.

[0016] Optionally, the cylinder includes a cylinder body and a telescopic rod, the telescopic rod is movably arranged inside the cylinder body, one end of the cylinder body away from the telescopic rod is connected to the frame, and the other end of the telescopic rod away from the cylinder body is connected to an optocoupler counter.

[0017] Optionally, the buffer portion includes a fixed rod and a sleeve, the sleeve is movably mounted on the outer periphery of the fixed rod, the inner top wall of the sleeve is connected to a spring, the end of the spring away from the sleeve is connected to the fixed rod, the end of the sleeve away from the fixed rod is connected to an optocoupler counter, and the end of the fixed rod away from the sleeve is connected to the frame.

[0018] Optionally, an elastic pad is provided on the outer periphery of the fixing rod close to the frame.

[0019] The beneficial effects of this application include but are not limited to:

[0020] The simple pendulum motion teaching aid provided by the present application has a simple pendulum mechanism and a counting mechanism, which is used to accurately record the number of vibrations of the simple pendulum during the simple pendulum motion; wherein, the simple pendulum mechanism is connected to the frame by a rotating shaft, so that the simple pendulum mechanism can swing freely in one plane of the frame, so as to more realistically simulate the simple pendulum motion and improve the accuracy of the experiment; by pressing the pressing part, the length of the laminate extending out of the box body can be adjusted, which is flexible and convenient to adapt to different teaching scenarios; and the setting of the laminate further ensures that the simple pendulum always swings freely in one plane during the simple pendulum motion; the optical coupler counter is located below the pendulum ball, and when the pendulum ball passes through the optical coupler counter, it blocks the light, thereby triggering the counter to record once, avoiding counting errors and improving the accuracy of the experiment; by setting a lifting component, the height of the optical coupler counter can be conveniently adjusted to adapt to pendulum balls of different lengths. The simple pendulum motion teaching aid has a compact structure, a reasonable layout, and is flexible and convenient to use, which is conducive to students intuitively observing and understanding the characteristics of the simple pendulum motion and effectively improving the teaching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 Schematic diagram of the structure of the simple pendulum exercise teaching device involved in the embodiment of the present application;

[0023] Figure 2 A side cross-sectional schematic diagram of a simple pendulum exercise teaching device according to an embodiment of the present application;

[0024] Figure 3 Schematic diagram of the structure of the pressing portion involved in the embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of a buffer portion according to an embodiment of the present application;

[0026] List of parts and reference numerals:

[0027] 1. Frame, 2. Shaft, 3. Box body, 4. Laminations, 5. Pendulum ball, 6. Optocoupler counter, 7. Rack, 8. Spring, 9. Press bar, 10. Press block, 11. Connector, 12. Through hole, 13. Cylinder body, 14. Telescopic rod, 15. Fixed rod, 16. Sleeve, 17. Elastic pad, 18. Operation panel. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0031] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0033] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0035] Reference Figure 1-4 , introduces the simple pendulum exercise teaching aid according to this application.

[0036] The simple pendulum motion teaching tool according to this embodiment includes a frame 1, in which a simple pendulum mechanism and a counting mechanism are sequentially arranged from top to bottom, for accurately recording the number of vibrations of the simple pendulum during the simple pendulum motion;

[0037] The pendulum mechanism is connected to the frame 1 via a rotating shaft 2, allowing the pendulum mechanism to swing freely within a plane of the frame 1, thereby more realistically simulating the motion of a simple pendulum and improving the accuracy of the experiment. The pendulum mechanism includes a box body 3 and a stack 4 at least partially located within the box body 3. The box body 3 is provided with a pressing portion, and the length of the stack 4 extending out of the box body 3 can be adjusted by pressing the pressing portion, which is flexible and convenient to adapt to different teaching scenarios. A pendulum ball 5 is provided at the end of the stack 4 away from the box body 3 to meet experimental requirements, thereby achieving accurate and reliable experimental results.

[0038] The counting mechanism includes an optical coupler counter 6 and a lifting assembly. The optical coupler counter 6 is located below the pendulum ball 5. When the pendulum ball 5 passes by the optical coupler counter 6, it blocks the light, thereby triggering the counter to record once, avoiding counting errors and improving the accuracy of the experiment; the optical coupler counter 6 is connected to the frame 1 through a lifting assembly, which facilitates the adjustment of the height of the optical coupler counter 6 to accommodate pendulum balls 5 of different lengths.

[0039] As an embodiment, a rack 7 is provided in the box body 3, one end of the rack 7 is connected to the box body 3 through a spring 8, and the other end is clamped with the laminate 4 and the pressing part, so that the length of the laminate 4 extending out of the box body 3 can be easily adjusted by pressing the pressing part, thereby changing the length of the simple pendulum, and after adjusting the length of the laminate 4, the rack 7 can form a firm clamping connection with the laminate 4, ensuring that the length of the simple pendulum remains unchanged during the simple pendulum motion.

[0040] As an embodiment, the pressing portion includes a pressing strip 9 and a pressing block 10. The pressing blocks 10 are relatively arranged at both ends of the pressing strip 9. At least part of the pressing strip 9 is located inside the box body 3. The pressing block 10 located inside the box body 3 is engaged with the rack 7, which facilitates moving the rack 7 to a suitable position, thereby flexibly adjusting the length of the stack 4 extending out of the box body 3.

[0041] As an embodiment, a clamping member 11 is provided at one end of the laminate 4 away from the pendulum ball 5, and the laminate 4 is clamped to the rack 7 through the clamping member 11, which not only prevents the laminate 4 from completely escaping from the box body 3 during the adjustment process, but also forms a firm clamping connection between the rack 7 and the laminate 4 after the adjustment is completed, ensuring that the length of the simple pendulum remains unchanged during the simple pendulum motion.

[0042] As an embodiment, a through hole 12 is provided on the pressing strip 9, and at least a portion of the through hole 12 is located in the box body 3. The laminate 4 passes through the through hole 12 to adapt to the structure of the laminate 4. When the length of the laminate 4 is not adjusted, a tight connection is formed between the laminate 4 and the box body 3, further ensuring the stability of the length of the laminate 4. When the length of the laminate 4 is adjusted, the laminate 4 can move up and down in the through hole 12.

[0043] As an implementation method, the laminate 4 is formed by overlapping several rectangular metal sheets to prevent the laminate 4 from deforming during the simple pendulum motion, ensure that the simple pendulum always swings freely in one plane, and facilitate the selection of laminates 4 of appropriate thickness to adapt to different teaching scenarios.

[0044] In the present invention, the number of metal sheets is more than two, and the thickness of the overlapping laminate 4 is less than its width. The material of the metal sheet can be at least one of aluminum, copper, and alloy. The embodiment of the present application does not limit the number and material of the metal sheets, and can be selected according to actual needs.

[0045] As an implementation method, the lifting assembly includes a cylinder and a buffer portion, and the cylinder is relatively arranged on both sides of the buffer portion to facilitate driving the optical coupler counter 6 to stably rise and fall.

[0046] As an embodiment, the cylinder includes a cylinder body 13 and a telescopic rod 14, the telescopic rod 14 is movably arranged inside the cylinder body 13, the end of the cylinder body 13 away from the telescopic rod 14 is connected to the frame 1, and the end of the telescopic rod 14 away from the cylinder body 13 is connected to the optocoupler counter 6, which is used to drive the optocoupler counter 6 to rise and fall in the frame 1 to adapt to the height of the pendulum ball 5.

[0047] As an embodiment, the buffer portion includes a fixed rod 15 and a sleeve 16, the sleeve 16 is movably mounted on the outer periphery of the fixed rod 15, the inner top wall of the sleeve 16 is connected to a spring 8, the end of the spring 8 away from the sleeve 16 is connected to the fixed rod 15, the end of the sleeve 16 away from the fixed rod 15 is connected to the optocoupler counter 6, and the end of the fixed rod 15 away from the sleeve 16 is connected to the frame 1, so as to provide elastic support for the optocoupler counter 6, effectively absorb and disperse the impact and vibration generated during the rising and falling process, and protect the optocoupler counter 6 and the frame 1 from damage.

[0048] In the present invention, an operation panel 18 is provided on the outside of the optocoupler counter 6 to facilitate display of information such as time and count as well as user operation.

[0049] The optocoupler counter 6 includes a transmitter, a receiver and a counter. During the transmission process, the infrared light beam emitted by the transmitter will block part or all of the light when the pendulum ball 5 passes by. The receiver converts the received light into a corresponding electrical signal according to the change in the received light and transmits it to the counter. After receiving the signal, the counter counts according to the set counting rules and feeds back the counting result to the operation panel 18.

[0050] The optocoupler counter 6 also includes a time control module and an alarm module. The time control module is used to set the counting time. When the counter is started, the time control module starts timing. Within the set counting time (for example, 1 minute), the counter receives all electrical signals transmitted by the receiver. When the set counting time (for example, 1 minute) is reached, the counter stops receiving the electrical signals transmitted by the receiver and triggers the alarm module to send an electrical signal (for example, a beep, a flashing indicator light, etc.) to notify the user that the counting time has expired.

[0051] As an embodiment, an elastic pad 17 is provided on the fixing rod 15 near the outer periphery of the frame 1 so as to limit the maximum descending stroke of the sleeve 16 and prevent it from excessively moving downward and causing damage to the device.

[0052] In the present invention, the material of the elastic pad 17 can be at least one of rubber, silicone, polyurethane, and soft plastic. The embodiment of the present application does not limit the material of the elastic pad 17 and can be selected according to actual needs.

[0053] During use, first adjust the length of the laminate 4 extending out of the box body 3, press the pressing block 10, the rack 7 compresses the spring 8, and the clamping piece 11 separates from the rack 7. At this time, move the laminate 4 up and down to make it extend out of the box body 3 to an appropriate length, then release the pressing block 10, the spring 8 drives the rack 7 to return to its initial position, and the clamping piece 11 is clamped with the rack 7 again. During the whole process, the pressing block 10 and the rack 7 located in the box body 3 are always in a clamped state; then adjust the length of the telescopic rod 14 extending out of the cylinder body 13, and drive the sleeve 16 to move until the pendulum ball 5 can always block the light of the optical coupler counter 6 during the swinging process. After completion, the simple pendulum motion experiment can be carried out.

[0054] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0055] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A simple pendulum exercise teaching tool, characterized in that: It comprises a frame, wherein a simple pendulum mechanism and a counting mechanism are sequentially arranged in the frame from top to bottom; The single pendulum mechanism is connected to the frame via a rotating shaft. The single pendulum mechanism includes a box body and a laminate at least partially located within the box body. The box body is provided with a pressing portion, and the length of the laminate extending out of the box body is adjusted by pressing the pressing portion. A pendulum ball is provided at one end of the laminate away from the box body. The counting mechanism includes an optical coupler counter and a lifting assembly. The optical coupler counter is located below the pendulum ball, and the optical coupler counter is connected to the frame through the lifting assembly.

2. The simple pendulum exercise teaching tool according to claim 1, characterized in that: A rack is provided in the box body, one end of the rack is connected to the box body through a spring, and the other end is clamped with the laminate and the pressing portion.

3. The simple pendulum exercise teaching tool according to claim 2, characterized in that: The pressing portion includes a pressing strip and a pressing block. The pressing blocks are relatively arranged at two ends of the pressing strip. At least a portion of the pressing strip is located in the box body. The pressing blocks located in the box body are engaged with the rack.

4. The simple pendulum exercise teaching tool according to claim 3, characterized in that: A clamping piece is provided at one end of the lamination away from the swing ball, and the lamination is clamped with the rack via the clamping piece.

5. The simple pendulum exercise teaching tool according to claim 4, characterized in that: The pressing strip is provided with a through hole, at least a portion of the through hole is located in the box body, and the laminate passes through the through hole.

6. The simple pendulum exercise teaching tool according to claim 1, characterized in that: The laminate is formed by overlapping a plurality of rectangular metal sheets.

7. The simple pendulum exercise teaching tool according to claim 1, characterized in that: The lifting assembly includes a cylinder and a buffer portion, and the cylinder is relatively arranged on both sides of the buffer portion.

8. The simple pendulum exercise teaching tool according to claim 7, characterized in that: The cylinder comprises a cylinder body and a telescopic rod, the telescopic rod is movably arranged inside the cylinder body, one end of the cylinder body away from the telescopic rod is connected to the frame, and the other end of the telescopic rod away from the cylinder body is connected to the optical coupler counter.

9. The simple pendulum exercise teaching tool according to claim 7, characterized in that: The buffer part includes a fixed rod and a sleeve, the sleeve is movably mounted on the outer periphery of the fixed rod, the inner top wall of the sleeve is connected to a spring, the end of the spring away from the sleeve is connected to the fixed rod, the end of the sleeve away from the fixed rod is connected to the optocoupler counter, and the end of the fixed rod away from the sleeve is connected to the frame.

10. The simple pendulum exercise teaching tool according to claim 9, characterized in that: The fixing rod is provided with an elastic pad near the outer periphery of the frame.

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