An adjustable acoustic wave interference simulation experimental device

Abstract

The utility model discloses an adjustable sound wave interference simulation experiment device, which relates to the technical field of sound wave experiment equipment, including an X-direction track plate and a Y-direction track plate, the X-direction track plate and the Y-direction track plate are fixedly connected to each other, a power amplifier is fixedly installed at the center position of the upper end of the X-direction track plate, an adjusting screw is movably installed in the X-direction track plate, and mounting mechanisms are respectively arranged on the X-direction track plates located on both sides of the power amplifier, the mounting mechanisms include a bottom plate and a top plate, the top plate is movably installed on the bottom plate, and the bottom plate is movably installed on the X-direction track plate. With the arrangement of the X-direction track plate and the mounting mechanism, and the mounting mechanism is composed of components such as the bottom plate, the top plate, the fixed seat, the movable seat and the rotating shaft, the sound box can be quickly clamped and fixed, and the sound wave transmission direction of the sound box can be adjusted. At the same time, the distance between the two sound boxes on the X-direction track plate can be adjusted synchronously with the adjusting screw, and the supporting plate can adjust the distance between the pickup light box and the two sound boxes.

Description

Technical Field

[0001] The utility model relates to the technical field of sound wave experimental equipment, in particular to an adjustable sound wave interference simulation experimental device. Background Art

[0002] Sound wave interference refers to the phenomenon that when two or more sound waves meet in space, the amplitude of sound waves in some areas is strengthened, while the amplitude of sound waves in other areas is weakened. This interference phenomenon is caused by the wave characteristics formed when sound waves propagate in space. When two sound waves with the same frequency, consistent vibration direction and constant phase difference meet, their superposition effect will cause the amplitude of sound waves in some places to increase, forming interference strengthening areas, while in other places, due to the mutual cancellation of wave peaks and wave troughs, the amplitude will decrease, forming interference weakening areas;

[0003] The interference of sound waves cannot be seen and the strength of the sound can only be felt through hearing. This device converts the interference phenomenon of sound waves (the strength of the sound) into the height of the lit lamp post through the conversion between sound and light, so that the interference phenomenon of sound waves can be seen. The sound source in general experiments comes from electronic equipment, and then sent to the Bluetooth amplifier via Bluetooth. The amplifier drives two identical speakers to make sounds. The device can be used to observe the interference phenomenon of sound waves, and can also roughly measure the speed of sound wave propagation in the air. However, when operating the above-mentioned sound wave interference simulation experimental device, it is impossible to conveniently adjust the distance between the two speakers synchronously according to the experimental requirements. At the same time, it is impossible to adjust the direction of sound wave propagation of the speakers. Even if the angle of the speakers can be adjusted, when the distance between the two speakers is adjusted horizontally at a later time, the sound wave propagation direction of the speakers will change, resulting in inaccurate data in the simulation experiment. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable acoustic wave interference simulation experimental device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An adjustable acoustic wave interference simulation experimental device comprises an X-direction track plate and a Y-direction track plate, the X-direction track plate and the Y-direction track plate are fixedly connected to each other, a power amplifier is fixedly installed at the center position of the upper end of the X-direction track plate, an adjusting screw rod is movably installed in the X-direction track plate, mounting mechanisms are respectively arranged on the X-direction track plates located on both sides of the power amplifier, the mounting mechanisms comprise a bottom plate and a top plate, the top plate is movably installed on the bottom plate, the bottom plate is movably installed on the X-direction track plate, a fixing seat is fixedly installed on the top plate, a movable seat is also movably installed on the top plate located on one side of the fixing seat, a sound box is also movably installed on the top plate located between the fixing seat and the movable seat, a supporting plate is movably installed on the Y-direction track plate, and a sound pickup light box is movably installed on the supporting plate.

[0007] As a further preferred embodiment of the present invention, the X-direction track plate and the Y-direction track plate are in a T-shaped connection structure.

[0008] As a further preferred solution of the utility model, three first sliding grooves are provided on the X-direction rail plate, three second sliding grooves are provided on the Y-direction rail plate, and the first sliding groove and the second sliding groove are provided on the X-direction rail plate and the Y-direction rail plate respectively, so as to realize a stable radial movement of the base plate and the supporting plate.

[0009] As a further preferred scheme of the utility model, T-shaped seats are fixedly installed at both ends of the X-axis rail plate, and left-handed threads and right-handed threads are arranged on the outer side of the adjusting screw rod. The two ends of the adjusting screw rod are respectively inserted into the through holes in the corresponding T-shaped seats and placed in one of the first sliding grooves, and the adjusting screw rod located on one side of the corresponding T-shaped seat is also clamped with a retaining spring. One end of the adjusting screw rod passes through one of the T-shaped seats and is fixedly installed with a handwheel. By means of the adjusting screw rod rotating between the two T-shaped seats, the two base plates can be synchronously driven to move relative to each other or in the opposite direction.

[0010] As a further preferred embodiment of the present invention, three first sliding blocks are fixedly installed at the lower end of the base plate, one of which has a screw hole, a rotating groove is provided at the center of the upper end of the base plate, the longitudinal cross-section of the rotating groove is an inverted T-shape, a plurality of slots are provided on the inner side of the rotating groove, the first sliding block is slidably installed in the corresponding first sliding groove, and the screw hole is threadedly connected to the adjusting screw.

[0011] As a further preferred scheme of the utility model, a rotating shaft is fixedly installed at the center position of the lower end of the top plate, and a plurality of latch teeth are fixedly installed on the outside of the rotating shaft, a mounting groove is opened in the top plate, an end block is fixedly installed at one end of the top plate, and a first limit block is fixedly installed at the middle position of the lower end of the movable seat, and second limit blocks are fixedly installed on both sides of the first limit block, the first limit block is inserted and installed in the middle position of the mounting groove, and the movable seat and the second limit block are also inserted and installed at the upper end of the top plate and the top of the mounting groove respectively, a pull rod is fixedly installed on one side of the first limit block relative to the end block, the pull rod extends through the through hole in the end block to one side of the top plate, and the pull rod sleeve between the first limit block and the end block is provided with a compression spring, and the rotating shaft is rotatably installed in the rotating groove through a plurality of latch teeth on the outside, and the speaker can be quickly clamped and fixed by the arrangement of the top plate, the fixed seat and the movable seat, and the rotatable top plate can adjust the sound wave transmission direction of the speaker.

[0012] As a further preferred embodiment of the present invention, three second sliders are fixedly installed on the lower end of the supporting plate, and the second sliders are slidably installed in the corresponding second sliding grooves. With the help of the setting of the supporting plate and the second sliders, the sound pickup light box can be driven to move on the Y-axis track plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses an adjustable sound wave interference simulation experimental device, with the help of the setting of an X-axis track plate and a mounting mechanism, and the mounting mechanism is composed of a bottom plate, a top plate, a fixed seat, a movable seat and a rotating shaft, etc., which can quickly clamp and fix the sound box and adjust the sound wave transmission direction of the sound box. At the same time, the distance between the two sound boxes on the X-axis track plate can be adjusted synchronously with the adjustment screw rod, and the support plate can adjust the distance between the pickup light box and the two sound boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the X-direction track plate structure of the utility model;

[0017] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the disassembly of the installation mechanism structure of the utility model;

[0019] Figure 5 It is a bottom view of the top plate of the utility model.

[0020] In the figure: 1. X-axis track plate; 2. Y-axis track plate; 3. power amplifier; 4. adjusting screw rod; 5. mounting mechanism; 6. bottom plate; 7. top plate; 8. fixed seat; 9. movable seat; 10. supporting plate; 11. pickup light box; 12. speaker; 13. first slide groove; 14. second slide groove; 15. T-shaped seat; 16. retaining spring; 17. hand wheel; 18. first slider; 19. screw hole; 20. rotating groove; 21. clamping groove; 22. rotating shaft; 23. clamping tooth; 24. mounting groove; 25. end block; 26. first limit block; 27. second limit block; 28. pull rod; 29. ​​second slider. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 5 As shown, the utility model provides an adjustable sound wave interference simulation experimental device, comprising an X-axis track plate 1 and a Y-axis track plate 2, the X-axis track plate 1 and the Y-axis track plate 2 are fixedly connected to each other, a power amplifier 3 is fixedly installed at the center position of the upper end of the X-axis track plate 1, an adjusting screw 4 is movably installed in the X-axis track plate 1, and mounting mechanisms 5 are respectively arranged on the X-axis track plate 1 at both sides of the power amplifier 3, the mounting mechanism 5 comprises a bottom plate 6 and a top plate 7, the top plate 7 is movably installed on the bottom plate 6, and the bottom plate 6 is movably installed on the X-axis track plate 1, a fixing seat 8 is fixedly installed on the top plate 7, a movable seat 9 is also movably installed on the top plate 7 located on one side of the fixing seat 8, a sound box 12 is also movably installed on the top plate 7 located between the fixing seat 8 and the movable seat 9, a supporting plate 10 is movably installed on the Y-axis track plate 2, and a sound pickup light box 11 is movably installed on the supporting plate 10.

[0023] like Figure 1-Figure 3 As shown, the X-axis track plate 1 and the Y-axis track plate 2 are in a T-shaped connection structure, three first slide grooves 13 are provided on the X-axis track plate 1, and three second slide grooves 14 are provided on the Y-axis track plate 2. The first slide groove 13 and the second slide groove 14 are respectively provided on the X-axis track plate 1 and the Y-axis track plate 2, so that a stable radial movement of the bottom plate 6 and the supporting plate 10 can be realized. T-shaped seats 15 are fixedly installed at both ends of the X-axis track plate 1, and left-handed threads and right-handed threads are arranged on the outer side of the adjusting screw rod 4. The two ends of the adjusting screw rod 4 are respectively inserted and installed in the through holes in the corresponding T-shaped seats 15 and placed in one of the first slide grooves 13, and the adjusting screw rod 4 located on one side of the corresponding T-shaped seat 15 is also clamped with a retaining spring 16, and one end of the adjusting screw rod 4 passes through one of the T-shaped seats 15 and is fixedly installed with a hand wheel 17. With the help of the adjusting screw rod 4 rotating between the two T-shaped seats 15, the two bottom plates 6 can be synchronously driven to move relative to each other or move in the opposite direction;

[0024] like Figure 1 , Figure 3-Figure 5 As shown, three first sliding blocks 18 are fixedly installed at the lower end of the bottom plate 6, one of which has a screw hole 19, a rotation groove 20 is opened at the center position of the upper end of the bottom plate 6, the longitudinal section of the rotation groove 20 is an inverted T-shaped, a plurality of slots 21 are opened on the inner side of the rotation groove 20, the first sliding block 18 is slidably installed in the corresponding first sliding groove 13, and the screw hole 19 is threadedly connected with the adjusting screw rod 4, a rotating shaft 22 is fixedly installed at the center position of the lower end of the top plate 7, a plurality of latch teeth 23 are fixedly installed on the outer side of the rotating shaft 22, a mounting groove 24 is opened in the top plate 7, an end block 25 is fixedly installed at one end of the top plate 7, a first limiting block 26 is fixedly installed at the middle position of the lower end of the movable seat 9, second limiting blocks 27 are fixedly installed on both sides of the first limiting block 26, the first limiting block 26 is inserted and installed in the middle position of the mounting groove 24, and the movable seat 9 and the second limiting block 27 are fixedly installed. They are also respectively inserted and installed on the upper end of the top plate 7 and the top of the installation groove 24. A pull rod 28 is fixedly installed on the first limit block 26 relative to one side of the end block 25. The pull rod 28 passes through the through hole in the end block 25 and extends to one side of the top plate 7. The pull rod 28 located between the first limit block 26 and the end block 25 is provided with a compression spring. The rotating shaft 22 is rotatably installed in the rotating groove 20 through a plurality of outer teeth 23. Through the arrangement of the top plate 7, the fixed seat 8, and the movable seat 9, the sound box 12 can be quickly clamped and fixed, and the rotatable top plate 7 can adjust the sound wave transmission direction of the sound box 12. Three second sliders 29 are fixedly installed on the lower end of the supporting plate 10. The second sliders 29 are slidably installed in the corresponding second slide grooves 14. With the help of the arrangement of the supporting plate 10 and the second sliders 29, the pickup light box 11 can be driven to move on the Y-axis track plate 2.

[0025] It should be noted that the utility model is an adjustable sound wave interference simulation experimental device. Before the sound wave interference experiment, one of the pull rods 28 can be pulled toward the operator, so that the pull rod 28 drives the movable seat 9 to move on the top plate 7 and away from the fixed seat 8 through the first limit block 26 and the second limit block 27. At the same time, the first limit block 26 compresses the compression spring on the outside of the pull rod 28 toward the end block 25. Subsequently, the sound box 12 is placed on the top plate 7 between the fixed seat 8 and the movable seat 9. Then, the pull rod 28 is released, and the rebound force of the compression spring on the outside of the pull rod 28 can be used to make the movable seat 9 move. The movable seat 9 moves toward the fixed seat 8, and then the speaker 12 is clamped and fixed on the top plate 7 through the fixed seat 8 and the movable seat 9. Then, another speaker 12 can be installed in the same way as above, and the two speakers 12 are electrically connected to the power amplifier 3 through the connection box. When the distance between the two speakers 12 needs to be adjusted, the hand wheel 17 can be turned, so that the hand wheel 17 drives the adjustment screw rod 4 to rotate, so that the adjustment screw rod 4 rotates in the screw holes 19 of the two first sliders 18, thereby controlling the two bottom plates 6 to move relative to each other or move in the opposite direction on the X-direction track plate 1, and then the positions of the two speakers 12 are stably and synchronously adjusted;

[0026] When conducting the experiment, the power amplifier 3 can be connected to the mobile phone or other electronic devices through Bluetooth, and the two speakers 12 can emit sound waves with a frequency of 500-1000Hz, so that the interference results of the sound waves can be displayed by displaying bright areas in different areas through the sound pickup light box 11. For example, the middle of the two speakers 12 should be a strong area of ​​bright sound, but the experimental results are the opposite, because the signals of the two speakers 12 do not come from the same channel, and their phases are just opposite.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable acoustic wave interference simulation experimental device, characterized in that: The invention comprises an X-direction track plate (1) and a Y-direction track plate (2), wherein the X-direction track plate (1) and the Y-direction track plate (2) are fixedly connected to each other, a power amplifier (3) is fixedly installed at the center position of the upper end of the X-direction track plate (1), an adjusting screw rod (4) is movably installed in the X-direction track plate (1), and mounting mechanisms (5) are respectively arranged on the X-direction track plate (1) at the positions on both sides of the power amplifier (3), wherein the mounting mechanisms (5) comprise a bottom plate (6) and a top plate (7), and the top plate (7) is movably installed on the bottom plate (6) and the top plate (7). The bottom plate (6) is movably mounted on the X-direction track plate (1); a fixed seat (8) is fixedly mounted on the top plate (7); a movable seat (9) is movably mounted on the top plate (7) located on one side of the fixed seat (8); a sound box (12) is movably mounted on the top plate (7) located between the fixed seat (8) and the movable seat (9); a supporting plate (10) is movably mounted on the Y-direction track plate (2); and a sound pickup light box (11) is movably mounted on the supporting plate (10).

2. The adjustable acoustic wave interference simulation experimental device according to claim 1, characterized in that: The X-direction track plate (1) and the Y-direction track plate (2) are in a T-shaped connection structure.

3. The adjustable acoustic wave interference simulation experimental device according to claim 1, characterized in that: The X-direction track plate (1) is provided with three first slide grooves (13), and the Y-direction track plate (2) is provided with three second slide grooves (14).

4. The adjustable acoustic wave interference simulation experimental device according to claim 3, characterized in that: Both ends of the X-axis rail plate (1) are fixedly mounted with T-shaped seats (15), and the outer side of the adjusting screw rod (4) is provided with a left-handed thread and a right-handed thread, and the two ends of the adjusting screw rod (4) are respectively inserted into the through holes in the corresponding T-shaped seats (15) and placed in one of the first sliding grooves (13), and the adjusting screw rod (4) located on one side of the corresponding T-shaped seat (15) is also clamped with a retaining spring (16), and one end of the adjusting screw rod (4) passes through one of the T-shaped seats (15) and is fixedly mounted with a hand wheel (17).

5. The adjustable acoustic wave interference simulation experimental device according to claim 3, characterized in that: Three first sliding blocks (18) are fixedly mounted on the lower end of the base plate (6), wherein a screw hole (19) is provided in one of the first sliding blocks (18). A rotation groove (20) is provided at the center position of the upper end of the base plate (6), wherein the longitudinal cross section of the rotation groove (20) is in an inverted T-shape, and a plurality of clamping grooves (21) are provided inside the rotation groove (20). The first sliding blocks (18) are slidably mounted in corresponding first sliding grooves (13), and the screw holes (19) are threadedly connected to the adjusting screw rod (4).

6. The adjustable acoustic wave interference simulation experimental device according to claim 5, characterized in that: A rotating shaft (22) is fixedly mounted at the center position of the lower end of the top plate (7), and a plurality of latching teeth (23) are fixedly mounted on the outer side of the rotating shaft (22). A mounting groove (24) is provided in the top plate (7), and an end block (25) is fixedly mounted at one end of the top plate (7). A first limit block (26) is fixedly mounted at the middle position of the lower end of the movable seat (9), and second limit blocks (27) are fixedly mounted on both sides of the first limit block (26). The first limit block (26) is inserted and mounted at the middle position of the mounting groove (24), and the movable seat (9) is fixedly mounted at the middle position of the lower end of the movable seat (9). The seat (9) and the second limit block (27) are also respectively installed on the upper end of the top plate (7) and the top of the installation groove (24); the first limit block (26) is fixedly installed with a pull rod (28) on one side relative to the end block (25); the pull rod (28) passes through a through hole in the end block (25) and extends to one side of the top plate (7); the pull rod (28) between the first limit block (26) and the end block (25) is sleeved with a compression spring; and the rotating shaft (22) is rotatably installed in the rotating groove (20) through a plurality of outer locking teeth (23).

7. The adjustable acoustic wave interference simulation experimental device according to claim 3, characterized in that: Three second sliding blocks (29) are fixedly mounted on the lower end of the support plate (10), and the second sliding blocks (29) are slidably mounted in corresponding second sliding grooves (14).

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