A sound teaching aid

Abstract

This utility model relates to the field of teaching aids technology and discloses a sound teaching aid, including a main board and an amplitude adjustment plate. An adjustment mechanism is fixedly installed at the center of the upper surface of the main board. Slots are formed at the front and rear ends and near the edges on both sides of the upper surface of the main board. A locking block is fixedly installed at the lower end and one side of the amplitude adjustment plate. The adjustment mechanism includes an adjustment box and a positioning block. Positioning grooves are formed on the upper surface, front and rear ends, and both sides of the adjustment box. Circular magnets are embedded in each of the five positioning grooves. A square magnet is embedded in the lower end of the positioning block. A steel ruler is fixedly installed on the upper end of the positioning block by bolts. In this utility model, the magnetically fixed adjustment mechanism facilitates adjustment of the spatial orientation of the steel ruler, enabling adjustment from vertical to horizontal placement. Combined with the synchronously adjustable amplitude adjustment plate, it helps users observe the changes in the vibration amplitude of the steel ruler at different horizontal angles, thus better understanding the vibration propagation of sound in different directions.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, and in particular to a sound teaching aid. Background Technology

[0002] Sound is a type of mechanical wave that propagates through air or other media, producing the auditory sensation. It is caused by the vibration of objects, forming sound waves that travel through a medium to the ear and are perceived as sound by the brain. Scientifically, sound involves multiple parameters such as frequency, amplitude, and waveform. Sound teaching aids are tools or devices that assist in learning and understanding these acoustic concepts, such as sound wave models, spectrograms, and pitch detectors. They help learners better understand the properties, generation, and propagation of sound through intuitive or interactive methods.

[0003] Because the vibration and propagation of sound in the air are invisible and difficult to observe with the naked eye, specific media and tools are needed to aid in observation. Some existing sound teaching aids use materials such as steel rulers to simulate sound wave vibrations. By observing the amplitude and velocity of the steel ruler, one can help perceive the propagation characteristics of sound waves in the air. However, these teaching aids have limitations. The position of the steel ruler is relatively fixed and difficult to adjust flexibly. They typically only allow observation of sound propagation in the same horizontal direction, lacking the convenience of adjusting the viewing angle and making it inconvenient to demonstrate sound transmission in different horizontal directions.

[0004] Therefore, those skilled in the art have provided a sound teaching tool to address the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sound teaching aid. The magnetically fixed adjustment mechanism facilitates adjustment of the horizontal angle of the steel ruler, enabling adjustment from vertical to horizontal angles. Combined with a synchronously adjustable amplitude adjustment plate, it assists users in observing changes in the vibration amplitude of the steel ruler at different horizontal angles, thus helping them better understand the propagation of sound vibrations in different directions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sound teaching aid, comprising a main board and an amplitude adjustment plate, wherein an adjustment mechanism is fixedly provided at the center of the upper surface of the main board, and slots are provided at the front and rear ends and on both sides near the edges of the upper surface of the main board, and a block is fixedly provided at the lower end and on one side of the amplitude adjustment plate;

[0007] The adjustment mechanism includes an adjustment box and a positioning block. The adjustment box has positioning slots on its upper surface, front and rear ends, and both sides. A circular magnet is embedded in each of the five positioning slots. A square magnet is embedded in the lower end of the positioning block. A steel ruler is fixed to the upper end of the positioning block by bolts.

[0008] Furthermore, the lower end of the amplitude adjustment plate is fixedly fitted with a locking block that engages with a slot near the edge of the upper end face of the main board.

[0009] Furthermore, the amplitude adjustment plate has multiple striped scale lines on its surface.

[0010] Furthermore, the positioning block is placed in the positioning groove on the upper surface of the adjustment box.

[0011] Furthermore, the circular magnet and the square magnet are magnetically attracted to each other.

[0012] Furthermore, a multi-functional tuner is provided on the upper surface of the motherboard near the adjustment mechanism.

[0013] This utility model has the following beneficial effects:

[0014] This invention presents a sound teaching aid that uses a combination of circular and square magnets to magnetically fix the positioning block in place on an adjustment box. This allows for easy adjustment of the positioning block's position, resulting in varying horizontal angles of a steel ruler on the positioning block, from vertical to horizontal. Combined with a synchronously adjustable amplitude adjustment plate, the user can directly observe the changes in the steel ruler's vibration amplitude and speed at different horizontal angles, helping them better understand the vibration and propagation of sound in different horizontal directions. Furthermore, the aid utilizes a multi-functional tuner on the main board to assist users in perceiving the pitch and intensity of the sound generated during vibration, enhancing their perception and understanding of sound parameters and improving the learning experience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the amplitude adjustment plate structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the adjustment box structure of this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the positioning block and the steel ruler of this utility model;

[0019] Figure 5 This is a bottom view of the positioning block structure of this utility model.

[0020] Legend:

[0021] 1. Main board; 2. Adjustment mechanism; 3. Amplitude adjustment plate; 4. Card block; 5. Card slot; 6. Multi-functional tuner; 201. Adjustment box; 202. Positioning slot; 203. Circular magnet; 204. Positioning block; 205. Square magnet; 206. Steel ruler. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 , Figure 2 An embodiment of this utility model provides a sound teaching aid, including a main board 1 and an amplitude adjustment plate 3. An adjustment mechanism 2 is fixedly installed at the center of the upper surface of the main board 1. The adjustment mechanism 2 includes an adjustment box 201 and a positioning block 204. Positioning grooves 202 are provided on the upper surface, front and rear ends and both sides of the adjustment box 201. A circular magnet 203 is embedded in each of the five positioning grooves 202. A square magnet 205 is embedded in the lower end of the positioning block 204. A steel ruler 206 is fixedly installed on the upper end of the positioning block 204 by bolts. The positioning block 204 is placed in the positioning groove 202 on the upper surface of the adjustment box 201. The circular magnet 203 and the square magnet 205 attract each other magnetically.

[0024] Specifically, the positioning block 204 and the positioning groove 202 are matched in shape and size, so the user can place the positioning block 204 into the positioning groove 202. Then, the square magnet 205 embedded at the lower end of the positioning block 204 will magnetically attract and fix it to the circular magnet 203 embedded inside the positioning groove 202. Both the square magnet 205 and the circular magnet 203 are neodymium iron boron magnets. This material has strong magnetic force and can provide stable attraction even in a small volume, ensuring that the positioning block 204 will not fall off when the steel ruler 206 vibrates, but will be fixed in place. The steel ruler 206 at the top of the positioning block 204 is made of 65Mn steel that has been electroplated with nickel. This material has a high elastic limit and excellent rebound performance. Furthermore, the electroplating with nickel can effectively prevent the steel ruler 206 from being corroded by residual hand sweat. In addition, the steel ruler 206 is fixed by first making a hole at the bottom of the steel ruler 206, then placing the bottom of the steel ruler 206 between the two plates at the top of the positioning block 204, then rotating the bolt through the hole on the two plates and the hole at the bottom of the steel ruler 206, and finally screwing a nut on the other end of the bolt to fix it.

[0025] Reference Figures 1-5The main board 1 has slots 5 at the front and rear ends and near the edges on both sides of the upper end. The amplitude adjustment plate 3 has a block 4 fixedly installed at the lower end and one side. The block 4 fixedly installed at the lower end of the amplitude adjustment plate 3 is engaged in the slot 5 near the edge of the rear end of the upper end of the main board 1. The amplitude adjustment plate 3 has multiple striped scale lines on its body. The main board 1 has a multi-functional tuner 6 near the adjustment mechanism 2 on the upper end.

[0026] Specifically, the distance between the multiple striped scale lines on the amplitude adjustment plate 3 is the same and equal. The shape and size of the locking block 4 fixed at the lower end and one side of the amplitude adjustment plate 3 match the shape and size of the locking slot 5. Therefore, the user can fix the amplitude adjustment plate 3 to the main board 1 through the locking block 4. Then, when the user needs to adjust the horizontal angle of the amplitude adjustment plate 3, the user pulls it out of the locking slot 5, and then rotates the amplitude adjustment plate 3 so that the striped scale lines on the plate change from vertical to horizontal. Finally, the locking block 4 fixed on one side of the amplitude adjustment plate 3 is inserted into the locking slot 5 to complete the adjustment of the horizontal angle of the amplitude adjustment plate 3. Secondly, when rotating the amplitude adjustment plate 3, it is necessary to ensure that the striped scale lines on the amplitude adjustment plate 3 are always consistent with the horizontal angle of the steel ruler 206. Furthermore, the multi-functional tuner 6 is an existing technical device.

[0027] Working principle: The user places the teaching aid on the table and then moves the steel ruler 206, causing it to vibrate. Using the amplitude adjustment plate 3 as a reference, the user observes the vibration amplitude and speed of the steel ruler 206 in the vertical state through the multiple striped scale lines on the plate 3. When the user needs to observe the steel ruler 206 in the horizontal state, the user grasps the base of the steel ruler 206 and pulls it upwards, causing the positioning block 204 to disengage from the positioning groove 202. The user then places the positioning block 204 into the positioning groove 202 on the side of the adjustment box 201. When placing the positioning block 204, first ensure that the positioning block 204 is in good condition. The steel ruler 206 is placed horizontally. Then, when the positioning block 204 is placed in the positioning groove 202, the square magnet 205 embedded at the lower end of the positioning block 204 and the round magnet 203 embedded in the positioning groove 202 are magnetically attracted and fixed together. At the same time, the user needs to pull the amplitude adjustment plate 3 upward to pull the locking block 4 out of the locking groove 5. Then, the amplitude adjustment plate 3 is placed horizontally, and then the locking block 4 fixed on the side of the amplitude adjustment plate 3 is inserted into the locking groove 5 on the upper side of the main board 1. At this time, the user moves the steel ruler 206 again, still using the amplitude adjustment plate 3 as a reference, to observe the vibration amplitude and vibration speed of the steel ruler 206 in the horizontal state.

[0028] Secondly, the multi-functional tuner 6 on the motherboard 1 helps users perceive the pitch and intensity of the sound emitted by the steel ruler 206 when it vibrates, thereby enhancing the user's sound perception experience.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sound teaching aid, comprising a main board (1) and an amplitude adjustment board (3), characterized in that: An adjustment mechanism (2) is fixedly provided at the center of the upper surface of the main board (1). Slots (5) are provided at the front and rear ends and on both sides near the edge of the upper surface of the main board (1). A block (4) is fixedly provided at the lower end and one side of the amplitude adjustment plate (3). The adjustment mechanism (2) includes an adjustment box (201) and a positioning block (204). The adjustment box (201) has positioning slots (202) on its upper surface, front and rear ends and both sides. A circular magnet (203) is embedded in each of the five positioning slots (202). A square magnet (205) is embedded in the lower end of the positioning block (204). A steel ruler (206) is fixed to the upper end of the positioning block (204) by bolts.

2. The sound teaching aid according to claim 1, characterized in that: The lower end of the amplitude adjustment plate (3) is fixedly fitted with a card block (4) which is engaged in a slot (5) near the edge of the upper end face of the main board (1).

3. The sound teaching aid according to claim 1, characterized in that: The amplitude adjustment plate (3) has multiple striped scale lines on its surface.

4. The sound teaching aid according to claim 1, characterized in that: The positioning block (204) is placed in the positioning groove (202) on the upper surface of the adjustment box (201).

5. A sound teaching aid according to claim 4, characterized in that: The circular magnet (203) and the square magnet (205) are magnetically attracted to each other.

6. The sound teaching aid according to claim 1, characterized in that: A multi-functional tuner (6) is provided on the upper surface of the main board (1) near the adjustment mechanism (2).

Images