A pure physical resonance sound production method and device based on fluid level tuning

Abstract

The application provides a kind of pure physical resonance sound production method and device based on fluid level tuning, it is related to resonance sound production technical field, including: generating box, the top of the generating box is fixed with flow box, one side of the flow box is fixed with water tank, and the upper end of water tank is open type, the upper end of water tank is out of sound production box, the bottom of the side of flow box close to water tank is fixed with six groups of dynamic frequency conversion pipe equidistantly, the bottom of the other side of flow box is fixed with six groups of fixed tone pipe equidistantly, utilize liquid level height as core tuning variable, construct the accurate coupling equation between fluid dynamics and acoustic frequency output, realize the true sense of passive dynamic frequency conversion;Quantitative fluid is continuously injected into resonance cavity inside by flow guide device.Liquid surface inside cavity gradually rises with time, liquid surface is "acoustic rigid reflection surface" of closed tube resonance, so that the effective length of air column produces dynamic reduction.

Description

Technical Field

[0001] This invention relates to the field of resonant sound generation technology, specifically to a purely physical resonant sound generation method and apparatus based on fluid level tuning. Background Technology

[0002] Fluid level tuning utilizes the inertial force feedback generated by liquid sloshing to counteract structural vibrations, and precise tuning can be achieved by changing the liquid level height. Current environmental acoustics creation heavily relies on electroacoustic amplification equipment, resulting in high energy consumption, and the acoustic presentation mechanism is disconnected from the natural ecology. In the fieldwork and cultural space restoration practices of regional ethnic music, it was found that although the area possesses excellent, untapped bamboo resources, bamboo-made physical sound-producing instruments or devices are almost nonexistent in existing traditional music practices, indicating resource underutilization and structural discontinuity.

[0003] In the existing technology, there is a lack of a purely mechanical linkage sound-generating device that can directly couple fluid kinetic energy (such as natural water flow) with physical acoustic resonance structure and can construct an original ecological auditory landscape using local materials. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a purely physical resonance sound generation method and apparatus based on fluid level tuning to solve the problems mentioned in the background art. To achieve the above objectives, the present invention provides a purely physical resonance sound generation device based on fluid level tuning, comprising: a generating box, a flow box fixed to the top of the generating box, a water tank fixed to one side of the flow box, the upper end of the water tank being open, the sound box extending through the upper end of the water tank, six sets of dynamic frequency converter tubes equidistantly fixed to the bottom of the flow box near the water tank, and six sets of pitch tubes equidistantly fixed to the bottom of the other side of the flow box, the pitch tubes being staggered from the dynamic frequency converter tubes, a driving component being provided between the pitch tubes and the dynamic frequency converter tubes, the driving component selectively striking the pitch tubes and the dynamic frequency converter tubes, and an adjustment component being provided on the top of the dynamic frequency converter tubes, the adjustment component being connected to the bottom of the flow box. The system is interconnected; an inlet is provided on the top side wall of the dynamic frequency converter tube; the adjustment assembly includes a lower connecting pipe, which is a right-angle pipe, with its horizontal end fixedly inserted into the inlet, a central pipe fixed to its vertical end, and an upper connecting pipe fixed to the top of the central pipe, which communicates with the inside of the flow box; the drive assembly includes a shaft frame, which is fixed inside the sound box between the dynamic frequency converter tube and the pitch tube, with a first cam rotatably sleeved on the surface of the shaft frame corresponding to the position of each pitch tube, and a second cam slidably sleeved on the surface of the shaft frame corresponding to each dynamic frequency converter tube, with a striking hammer provided on the outside of the shaft frame for the pitch tube and the dynamic frequency converter tube, and the first cam pressing against the corresponding striking hammer.

[0005] Optionally, the top of the water tank has two symmetrical outlets on the side facing the flow box. A rotating shaft is rotatably installed inside the flow box, and water receiving wheels are fixed at both ends of the rotating shaft. The blades of the water receiving wheels correspond to the outlet positions. The bottom of the flow box has a drain port corresponding to the upper connecting pipe position of each set of adjustment components, and the upper connecting pipe is fixedly connected to the drain port.

[0006] Optionally, the sound-generating box is fixed to a return box at the bottom of the water tank, and a return pipe is fixed to the top of the side of the water tank away from the outlet. A water pump is fixed to the lower end of the return pipe. The water pump is fixedly installed on the outer wall of the water tank, and the bottom of the water pump is fixedly connected to the return box through a pipe. The dynamic frequency converter tube has a water outlet on its bottom side wall, and the water outlet is located at the top of the return box.

[0007] Optionally, the adjustment assembly further includes: a plug, a first electric push rod, and a second electric push rod. The first electric push rod is slidably and sealingly inserted into the bottom of the vertical end of the lower connecting pipe, and the extended end of the first electric push rod is fixed with a plug. The second electric push rod is fixed to the bottom of the horizontal end of the lower connecting pipe, and the extended end of the second electric push rod is fixedly connected to the bottom of the first electric push rod. A third spring is sleeved on the outer surface of the first electric push rod, and both ends of the third spring are fixedly connected to the bottom of the lower connecting pipe and the bottom of the first electric push rod.

[0008] Optionally, the drive assembly further includes: a slide rail, a fixed frame, and a movable frame. The movable frame is provided on the side of the second cam away from the first cam. The movable frame is slidably sleeved on the shaft frame. The second cam is rotatably mounted on the surface of the movable frame. The fixed frame is provided on the side of the movable frame away from the second cam. The fixed frame is rotatably sleeved on the surface of the shaft frame. The sound box is fixed to the slide rail at the bottom of the shaft frame. The bottom of the fixed frame is fixed inside the slide rail. The bottom of the movable frame slides along the inside of the slide rail. A first spring is sleeved on the surface of the shaft frame between the movable frame and the fixed frame, and the two ends of the first spring are fixedly connected to the movable frame and the fixed frame.

[0009] Optionally, a slide is slidably fitted onto the surface of the dynamic frequency converter tube. One end of the slide is fixedly connected to the extended end of the second electric push rod. A horizontal plate is fixed to the outside of the slide, and the other end of the horizontal plate is rotatably connected to a connecting rod via a rotating shaft. The other end of the connecting rod is rotatably connected to the top of the movable frame via a rotating shaft.

[0010] Optionally, a sliding frame is fixed to the top of the hammer corresponding to the dynamic frequency converter tube and the pitch tube at the bottom of the flow box. A slider is slidably connected inside the sliding frame. A vertical plate is fixed to the bottom of the slider and the vertical plate is fixedly connected to the hammer. A second spring is fixed between the slider and the sliding frame. When the first cam and the second cam rotate, they press against the corresponding vertical plate.

[0011] Optionally, a collar is fixed at the center of the first cam and is rotatably sleeved on the shaft bracket. A locking bolt is threaded into the side of the collar away from the second cam and is in contact with the shaft bracket. A drive belt is installed at both ends of the shaft bracket and a pulley at the other end of the drive belt is fixedly connected to the rotating shaft.

[0012] Optionally, the collar has an annular groove on the side facing the second cam, and the second cam has inserts fixed at equal intervals at positions corresponding to the annular groove; wherein, friction pads are fixed on the top and bottom surfaces of the inserts.

[0013] A purely physical resonance sound generation method based on fluid level tuning, the sound generation method comprising the following steps: (1) The natural water flow impacts the water impeller along the outlet, causing the shaft and shaft frame to rotate coaxially. The eccentric contours of the first cam and the second cam periodically push the vertical plate of the hammer. (2) The hammer corresponding to the first cam strikes the pitch tube at high speed. After the pitch tubes of different physical lengths are struck, standing wave resonances of different frequencies are generated inside the cavity, thereby outputting a specific pitch. (3) The upper and lower connecting pipes of the adjustment component continuously introduce part of the water flow into the dynamic frequency converter tube. Since the inlet diameter is larger than the outlet diameter, the liquid level in the tube continues to rise. The effective air column length between the top opening and the liquid level is mechanically compressed. The hammer corresponding to the second cam strikes the dynamic frequency converter tube at high speed. The special sound produced by the strike is different depending on the water inlet time of each dynamic frequency converter tube. (4) When the upper connecting pipe of the regulating component stops water intake, the liquid level gradually drops with the water outlet, the effective air column length increases, and the resonant sound wave frequency decreases dynamically. During this process, the sound frequency is continuously adjusted by striking at different time periods. (5) Different installation angles of the first cam result in different striking times, producing different specific melodies. Connecting the corresponding second cam with the first cam can produce different special melodies and create different sound effects.

[0014] The beneficial effects of this invention are: 1. This invention uses liquid level height as the core tuning variable to construct a precise coupling equation between fluid dynamics and acoustic frequency output, thus realizing a true passive dynamic frequency conversion.

[0015] 2. This invention uses a flow guiding device to continuously inject a quantitative amount of fluid into the resonant cavity. The liquid level inside the cavity gradually rises over time, and the liquid level acts as an "acoustic rigid reflective surface" for closed-tube resonance, causing the effective length of the air column to dynamically decrease.

[0016] 3. In this invention, the water tank is filled with natural water. After the water flows out above the outlet, it strikes the receiving wheel. The receiving wheel drives the rotating shaft to rotate. Through the transmission belt, the shaft frame rotates synchronously, driving the first cam and the second cam to rotate. The striking hammer then strikes the pitch tube and the dynamic frequency converter tube. The water inside the dynamic frequency converter tube flows out from the drain outlet and enters the return box. It is then returned to the water tank by the water pump for recycling.

[0017] 4. This invention utilizes the cooperation of the first and second electric push rods to move the plug, thereby sealing the upper connecting pipe. This effect is applicable to various situations. First, with the extended end of the first electric push rod remaining unchanged, the second electric push rod moves the first electric push rod and the plug downwards together, connecting the upper connecting pipe to the central pipe. Water from the flow box enters the dynamic frequency converter tube, and simultaneously, the slide moves downwards with the extended end of the second electric push rod. The connecting rod pushes the moving frame to connect the second cam and the first cam at this position. In the second case, the extended end of the second electric push rod remains extended, and the extended end of the first electric push rod drives the plug to insert into the upper connecting pipe and stop entering. At this time, the water inside the dynamic frequency converter tube flows out slowly. During this process, tapping the dynamic frequency converter tube can produce different musical notes.

[0018] 5. This invention selects and connects the first and second cams at corresponding positions, thereby inserting the sound of the dynamic frequency converter tube's percussion into a certain pitch to form different musical pieces. This can be freely adjusted by the user, offering high flexibility. Specifically, after the adjustment component introduces water from the flow box into the dynamic frequency converter tube, the second electric push rod moves the slide downward, causing the moving frame to move along the slide rail and shaft frame. The insert on the second cam is inserted into the annular groove in the shaft ring. The friction point forms a connection between the first and second cams, allowing the first and second cams to rotate synchronously. Here, the friction pad is made of a material with a high coefficient of friction, ensuring sufficient friction after the insert is inserted to drive the first and second cams to rotate simultaneously. This inserts the percussion of the dynamic frequency converter tube into the middle of the musical piece produced by the percussion of the tuning tube, creating percussion music with different effects. Attached Figure Description

[0019] Figure 1 This is a schematic flowchart of a purely physical resonance sound generation method based on fluid level tuning proposed in an embodiment of this disclosure. Figure 2 This is a schematic diagram of the overall structure of a pure physical resonance sound generation device based on fluid level tuning according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the internal structure of the sound-generating box in a pure physical resonance sound-generating device based on fluid level tuning according to an embodiment of this disclosure. Figure 4 This is a schematic diagram of the fluid bottom structure in a purely physical resonance sound-generating device based on fluid level tuning, as proposed in an embodiment of this disclosure. Figure 5 This is a schematic diagram of the internal structure of the flow box in a purely physical resonance sound generation device based on fluid level tuning, according to an embodiment of this disclosure. Figure 6 This is a schematic diagram showing the connection between the adjustment component and the dynamic frequency converter in a purely physical resonance sound generation device based on fluid level tuning according to an embodiment of this disclosure. Figure 7 This is a schematic diagram showing the positional relationship between the first convex plate and the second convex plate in a pure physical resonance sound generation device based on fluid level tuning according to an embodiment of this disclosure. Figure 8 This is a schematic diagram of the adjustment component structure in a purely physical resonance sound generation device based on fluid level tuning, according to an embodiment of this disclosure. Figure 9 This is a schematic diagram showing the connection between the driving component and the adjusting component in a purely physical resonance sound generation device based on fluid level tuning according to an embodiment of this disclosure. Figure 10 This is a schematic diagram of the connection between the first cam and the shaft frame in a purely physical resonance sound generation device based on fluid level tuning according to an embodiment of this disclosure; Figure 11 This is a schematic diagram showing the separation of the first convex plate and the second convex plate in a pure physical resonance sound generation device based on fluid level tuning according to an embodiment of this disclosure. As shown in the figure: 1. Sound generating box; 11. Water tank; 12. Flow box; 13. Water pump; 14. Return pipe; 15. Return box; 16. Drain outlet; 17. Outlet. 2. Water-receiving impeller; 21. Drive belt; 22. Rotating shaft; 3. Tuning pipe; 4. Dynamic frequency converter tube; 41. Water inlet; 42. Water outlet; 5. Drive assembly; 51. Shaft bracket; 52. Slide rail; 53. First cam; 54. Second cam; 55. Slide frame; 56. Vertical plate; 57. Striking hammer; 58. Fixed frame; 59. Moving frame; 510. First spring; 511. Collar; 512. Locking bolt; 513. Slider; 514. Second spring; 515. Insert post; 516. Friction pad; 517. Annular groove; 6. Adjustment assembly; 61. Central tube; 62. Upper connecting tube; 63. Lower connecting tube; 64. Block; 65. First electric push rod; 66. Third spring; 67. Second electric push rod; 68. Slide; 69. Cross plate; 610. Connecting rod. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figure 1 As shown, a purely physical resonance sound generation method based on fluid level tuning is disclosed, the sound generation method comprising the following steps: (1) The natural water flow impacts the water impeller along the outlet, causing the shaft and shaft frame to rotate coaxially. The eccentric contours of the first cam and the second cam periodically push the vertical plate of the hammer. (2) The hammer corresponding to the first cam strikes the pitch tube at high speed. After the pitch tubes of different physical lengths are struck, standing wave resonances of different frequencies are generated inside the cavity, thereby outputting a specific pitch. (3) The upper and lower connecting pipes of the adjustment component continuously introduce part of the water flow into the dynamic frequency converter tube. Since the inlet diameter is larger than the outlet diameter, the liquid level in the tube continues to rise. The effective air column length between the top opening and the liquid level is mechanically compressed. The hammer corresponding to the second cam strikes the dynamic frequency converter tube at high speed. The special sound produced by the strike is different depending on the water inlet time of each dynamic frequency converter tube. (4) When the upper connecting pipe of the regulating component stops water intake, the liquid level gradually drops with the water outlet, the effective air column length increases, and the resonant sound wave frequency decreases dynamically. During this process, the sound frequency is continuously adjusted by striking at different time periods. (5) Different installation angles of the first cam result in different striking times, producing different specific melodies. Connecting the corresponding second cam with the first cam can produce different special melodies and create different sound effects.

[0022] like Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, this disclosure proposes a pure physical resonance sound generation device based on fluid level tuning, comprising: a generating box, a flow box 12 fixed to the top of the generating box, a water tank 11 fixed to one side of the flow box 12, the upper end of the water tank 11 being open, the upper end of the water tank 11 passing through the sound box 1, six sets of dynamic frequency conversion tubes 4 equidistantly fixed to the bottom of the flow box 12 near the water tank 11, and six sets of pitch tubes 3 equidistantly fixed to the bottom of the other side of the flow box 12, the pitch tubes 3 and the dynamic frequency conversion tubes 4 being staggered, a driving component 5 being provided between the pitch tubes 3 and the dynamic frequency conversion tubes 4, the driving component 5 selectively striking the pitch tubes 3 and the dynamic frequency conversion tubes 4, an adjustment component 6 being provided at the top of the dynamic frequency conversion tubes 4, the adjustment component 6 being connected to the bottom of the flow box 12; a water inlet 41 being opened on the top side wall of the dynamic frequency conversion tubes 4; the adjustment component 6 including a lower connecting pipe 63, the lower connecting pipe 63 is a right-angle tube. The horizontal end of the lower connecting tube 63 is fixedly inserted into the inlet 41. The vertical end of the lower connecting tube 63 is fixed with a central tube 61. The top of the central tube 61 is fixed with an upper connecting tube 62, which communicates with the inside of the flow box 12. The drive assembly 5 includes a shaft frame 51, which is fixed inside the sound box 1 between the dynamic frequency converter tube 4 and the pitch tube 3. A first cam 53 is rotatably sleeved on the surface of the shaft frame 51 corresponding to the position of each pitch tube 3. A second cam 54 is slidably sleeved on the surface of the shaft frame 51 corresponding to the surface of each dynamic frequency converter tube 4. The pitch tube 3 and the dynamic frequency converter tube 4 are provided with striking hammers 57 facing the outside of the shaft frame 51. The first cam 53 and the corresponding striking hammer 57 are in pressing contact. The structure of the pitch tube 3 is: a hollow bamboo tube with a closed top and an open bottom (or open at both ends), fixed with a preset physical length and inner diameter. The structure of the dynamic frequency converter tube 4 is: The tube is a hollow bamboo tube with a closed bottom. The outer diameter of the inlet 41 is larger than that of the outlet 16. Natural water flows along the outlet 17 and impacts the water wheel 2, causing the rotating shaft 22 and the shaft frame 51 to rotate coaxially. The eccentric contours of the first cam 53 and the second cam 54 periodically push the vertical plate 56 of the hammer 57. The hammer 57 corresponding to the first cam 53 strikes the tuning tube 3 at high speed. After the tuning tubes 3 of different physical lengths are struck, standing wave resonances of different frequencies are generated inside the cavity, thereby outputting a specific tone. The upper connecting pipe 62 and the lower connecting pipe 63 of the regulating component 6 continuously introduce part of the water flow into the dynamic frequency conversion tube 4. Since the diameter of the inlet 41 is larger than that of the outlet 42, the liquid level in the tube continues to rise. The effective air column length between the top opening and the liquid level is mechanically compressed. The hammer 57 corresponding to the second cam 54 strikes the dynamic frequency conversion tube 4 at high speed. The special tone produced by the strike is different depending on the water inlet time of each dynamic frequency conversion tube 4.When the upper connecting pipe 62 of the adjusting component 6 stops supplying water, the liquid level gradually decreases along with the outlet 42, the effective air column length increases, and the resonant sound wave frequency dynamically decreases accordingly. During this process, the striking at different times achieves continuous adjustment of the sound frequency. Different installation angles of the first cam 53 result in different striking times, producing specific scales of different melodies. Connecting the corresponding second cam 54 to the first cam 53 can produce different special scales, forming different sound effects.

[0023] Mechanical excitation strikes the hollow resonant cavity (a bamboo tube sealed at the bottom), exciting the air column inside the tube to generate longitudinal wave vibrations, forming a standing wave. A metered amount of fluid is continuously injected into the resonant cavity through a flow guiding device. The liquid level inside the cavity gradually rises over time. The liquid level acts as an "acoustic rigid reflector" for closed-tube resonance, causing the effective length of the air column to dynamically decrease.

[0024] A nonlinear physical acoustic intervention model was proposed, breaking through the technical bottleneck that traditional passive sound generators can only output fixed pitches. For the first time, liquid level height was used as the core tuning variable to construct a precise coupling equation between fluid dynamics and acoustic frequency output, realizing true passive dynamic frequency conversion.

[0025] A standardized regional soundscape hardware base was constructed: using a bamboo tube matrix as a carrier, the visual intrusion of electroacoustic equipment on the natural ecology was completely eliminated, and it effectively filled the methodological gap of bamboo physical sound generators in regional ethnic ecological acoustics.

[0026] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the water tank 11 has two symmetrical outlets 17 on the side facing the flow box 12 at the top. A rotating shaft 22 is rotatably installed inside the flow box 12, and water receiving wheels 2 are fixed at both ends of the rotating shaft 22. The blades of the water receiving wheels 2 correspond to the positions of the outlets 17. The bottom of the flow box 12 has a drain outlet 16 corresponding to the position of the upper connecting pipe 62 of each set of adjustment components 6, and the upper connecting pipe 62 is fixedly connected to the drain outlet 16. The sound box 1 is located at the bottom of the water tank 11 and a return box 15 is fixedly installed. A return pipe 14 is fixedly installed on the top of the side of the water tank 11 away from the outlets 17, and a water pump 13 is fixedly installed at the lower end of the return pipe 14. The water pump 13 is fixedly installed on the outer wall of the water tank 11, and the bottom of the water pump 13 is fixedly connected to the return box 15 through a pipe. The bottom side wall of the dynamic frequency converter tube 4 has a water outlet 42, which is located at the top of the return box 15.

[0027] Understandably, when the water tank 11 is filled with water, the water flowing out of the outlet 17 strikes the receiving wheel 2. The receiving wheel 2 drives the rotating shaft 22 to rotate. Through the transmission belt 21, the shaft frame 51 rotates synchronously, driving the first cam 53 and the second cam 54 to rotate. Then, the hammer 57 strikes the pitch tube 3 and the dynamic frequency converter tube 4. The water inside the dynamic frequency converter tube 4 flows out from the drain outlet 16 and enters the return box 15. It is then returned to the water tank 11 by the water pump 13 for recycling.

[0028] like Figure 6 and Figure 8 As shown, in some embodiments, the adjusting assembly 6 further includes: a blocking block 64, a first electric push rod 65, and a second electric push rod 67. The first electric push rod 65 is slidably and sealingly inserted into the bottom of the vertical end of the lower connecting pipe 63, and the blocking block 64 is fixed to the extended end of the first electric push rod 65. The second electric push rod 67 is fixed to the bottom of the horizontal end of the lower connecting pipe 63, and the extended end of the second electric push rod 67 is fixedly connected to the bottom of the first electric push rod 65. A third spring 66 is sleeved on the outer surface of the first electric push rod 65, and both ends of the third spring 66 are fixedly connected to the bottom of the lower connecting pipe 63 and the bottom of the first electric push rod 65.

[0029] It is understandable that the cooperation of the first electric push rod 65 and the second electric push rod 67 can drive the block 64 to move, thereby blocking the upper connecting pipe 62. This effect can be applied to a variety of situations. First, the extended end of the first electric push rod 65 remains unchanged, and the second electric push rod 67 drives the first electric push rod 65 and the block 64 to move downward together. The upper connecting pipe 62 is connected to the central pipe 61, and the water inside the flow box 12 enters the dynamic frequency converter tube 4. At the same time, the slide 68 moves downward with the extended end of the second electric push rod 67, and the connecting rod 610 pushes the moving frame 59 to move so that the second cam 54 is connected to the first cam 53 at this position. In the second case, the extended end of the second electric push rod 67 remains extended, and the extended end of the first electric push rod 65 drives the block 64 to insert into the upper connecting pipe 62 and stop entering. At this time, the water inside the dynamic frequency converter tube 4 flows out slowly. During this process, tapping the dynamic frequency converter tube 4 can produce different musical scales.

[0030] like Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, in some embodiments, the drive assembly 5 further includes: a slide rail 52, a fixed frame 58, and a movable frame 59. The movable frame 59 is located on the side of the second cam 54 away from the first cam 53, and the movable frame 59 is slidably sleeved on the shaft frame 51. The second cam 54 is rotatably mounted on the surface of the movable frame 59. The fixed frame 58 is located on the side of the movable frame 59 away from the second cam 54, and the fixed frame 58 is rotatably sleeved on the surface of the shaft frame 51. The sound box 1 is fixed to the slide rail 52 at the bottom of the shaft frame 51, and the bottom of the fixed frame 58 is fixed to the slide rail 52. Inside, the bottom of the movable frame 59 slides along the slide rail 52; wherein, a first spring 510 is sleeved on the surface of the shaft frame 51 located between the movable frame 59 and the fixed frame 58, and the two ends of the first spring 510 are fixedly connected to the movable frame 59 and the fixed frame 58; a slide 68 is slidably sleeved on the surface of the dynamic frequency converter tube 4, one end of the slide 68 is fixedly connected to the extended end of the second electric push rod 67, a cross plate 69 is fixed to the outside of the slide 68, and the other end of the cross plate 69 is rotatably connected to a connecting rod 610 through a rotating shaft, and the other end of the connecting rod 610 is rotatably connected to a connecting rod 610 through a rotating shaft. The shaft is rotatably connected to the top of the movable frame 59. A sliding frame 55 is fixed to the top of the hammer 57 corresponding to the dynamic frequency converter tube 4 and the pitch tube 3 at the bottom of the flow box 12. A slider 513 is slidably connected inside the sliding frame 55. A vertical plate 56 is fixed to the bottom of the slider 513, and the vertical plate 56 is fixedly connected to the hammer 57. A second spring 514 is fixed between the slider 513 and the sliding frame 55. When the first cam 53 and the second cam 54 rotate, they press against the corresponding vertical plate 56. A collar 511 is fixed at the axis of the first cam 53. 1. Rotatably sleeved on the shaft bracket 51, the shaft collar 511 is threaded with a locking bolt 512 on the side away from the second cam 54, and the locking bolt 512 is in pressing contact with the shaft bracket 51; wherein, the two ends of the shaft bracket 51 are equipped with a transmission belt 21, and the pulley at the other end of the transmission belt 21 is fixedly connected to the rotating shaft 22; the shaft collar 511 has an annular groove 517 on the side facing the second cam 54, and the second cam 54 is fixed with inserts 515 at equal intervals corresponding to the position of the annular groove 517; wherein, friction pads 516 are fixed on the top and bottom surfaces of the inserts 515.

[0031] It should be noted that the different lengths of the tuning tubes 3 result in different sounds when struck. Therefore, the first cam 53 on the shaft bracket 51 can be locked using the locking bolt 512 on the collar 511, and the protruding parts of the first cam 53 can be fixed at different angles. Thus, when the shaft bracket 51 rotates, each first cam 53 strikes its corresponding tuning tube 3 at different times, creating a percussion effect. During this process, the second cam 54 is not connected to the first cam 53, so it will not strike the dynamic frequency converter tube 4. When the dynamic frequency converter tube 4 needs to strike, there are multiple striking methods. Simply put, because the protruding positions of each first cam 53 are different, the striking times are different. However, each first cam 53 corresponds to a set of second cams 54 and the dynamic frequency converter tube 4. Here, the corresponding first cam 53 and second cam 54 can be connected, allowing the sound of the dynamic frequency converter tube 4 to be inserted into a certain pitch range, creating different musical pieces. This can be freely adjusted by the user, offering considerable flexibility. Specifically, after the adjusting component 6 introduces water from the flow box 12 into the dynamic frequency converter tube 4, the second electric push rod 67 moves the slide 68 downward, causing the moving frame 59 to move along the slide rail 52 and the shaft frame 51. The insert 515 on the second cam 54 is inserted into the annular groove 517 in the shaft collar 511. The friction point forms a connection between the first cam 53 and the second cam 54, allowing the first cam 53 and the second cam 54 to rotate synchronously. Here, the friction pad 516 is made of a material with a high coefficient of friction. The quality ensures sufficient friction after the insertion of the plug 515 to drive the first cam 53 and the second cam 54 to rotate simultaneously, inserting the dynamic frequency converter tube 4 into the middle of the music produced by the tapping of the pitch tube 3, forming percussion music with different effects. The rotation of the first cam 53 and the second cam 54 causes the protruding part to press against the vertical plate 56, thereby causing the slider 513 to move along the inside of the slide frame 55. The vertical plate 56 drives the hammer 57 to move and strike the dynamic frequency converter tube 4 and the pitch tube 3. Then the hammer 57 is reset by the second spring 514.

[0032] Working principle: In use, the water tank 11 is filled with natural water. Water flowing out above the outlet 17 strikes the receiving wheel 2, which drives the rotating shaft 22 to rotate. Through the transmission belt 21, the shaft bracket 51 rotates synchronously, driving the first cam 53 and the second cam 54 to rotate. The striking hammer 57 then strikes the pitch tube 3 and the dynamic frequency converter tube 4. The water inside the dynamic frequency converter tube 4 flows out from the drain outlet 16 and enters the return box 15. It is then returned to the water tank 11 by the water pump 13 for recycling. The cooperation of the first electric push rod 65 and the second electric push rod 67 can move the block 64, thereby sealing the upper connecting pipe 62. This effect can be applied to various situations. First, the extended end of the first electric push rod 65 remains unchanged, and the second electric push rod 67... The first electric push rod 65 and the block 64 move downwards together, connecting the upper connecting pipe 62 to the central pipe 61. Water from the flow box 12 enters the dynamic frequency converter tube 4. Simultaneously, the slide 68 moves downwards with the extended end of the second electric push rod 67. The connecting rod 610 pushes the moving frame 59 to move, connecting the second cam 54 and the first cam 53 at this position. In the second case, the extended end of the second electric push rod 67 remains extended, and the extended end of the first electric push rod 65 drives the block 64 to insert into the upper connecting pipe 62, stopping the entry. At this time, the water inside the dynamic frequency converter tube 4 flows out slowly. During this process, striking the dynamic frequency converter tube 4 can produce different musical scales. The length of the pitch tube 3 is different, so the sound produced by striking is also different. The first cam 53 on the shaft bracket 51 can be locked by the locking bolt 512 on the collar 511, and the protruding part of the first cam 53 can be fixed at different angles. Therefore, when the shaft bracket 51 rotates, each first cam 53 strikes its corresponding tuning tube 3 at different times, thus creating a percussion effect. During this process, the second cam 54 is not connected to the first cam 53, so the second cam 54 will not strike the dynamic frequency converter tube 4. When the dynamic frequency converter tube 4 needs to strike, there are multiple striking methods. Simply put, because the protruding position of each first cam 53 is different, the striking time is different. However, each first cam 53 corresponds to a set of second cams 54 and dynamic frequency converter tubes 4, so a connection can be selected... By connecting the first cam 53 and the second cam 54 at corresponding positions, the sound of the dynamic frequency converter tube 4 striking is inserted between certain notes to form different melodies. This can be freely adjusted by the user, offering a high degree of flexibility. Specifically, after the adjustment component 6 introduces water from the flow box 12 into the dynamic frequency converter tube 4, the second electric push rod 67 moves the slide 68 downward, causing the moving frame 59 to move along the slide rail 52 and the shaft frame 51. The insert 515 on the second cam 54 is inserted into the annular groove 517 in the shaft collar 511. The friction point forms a connection between the first cam 53 and the second cam 54, allowing the first cam 53 and the second cam 54 to rotate synchronously. Here, the friction pad 516 is made of a material with a high coefficient of friction.After the insert 515 is inserted, sufficient friction is ensured to drive the first cam 53 and the second cam 54 to rotate simultaneously. This inserts the impact of the dynamic frequency converter tube 4 into the middle of the music produced by the impact of the pitch tube 3, creating percussion with different effects. The rotation of the first cam 53 and the second cam 54 causes the protruding parts to press against the vertical plate 56, thereby moving the slider 513 along the inside of the sliding frame 55. The vertical plate 56 then drives the striking hammer 57 to move and strike the dynamic frequency converter tube 4 and the pitch tube 3. Subsequently, the striking hammer 57 is reset by the second spring 514.

[0033] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A purely physical resonance sound generation device based on fluid level tuning, characterized in that, include: A generator box is provided, with a flow box (12) fixed on the top of the generator box. A water tank (11) is fixed on one side of the flow box (12), and the upper end of the water tank (11) is open. The upper end of the water tank (11) passes through the sound box (1). Six sets of dynamic frequency converter tubes (4) are fixed at equal intervals on the bottom of the flow box (12) near the water tank (11). Six sets of pitch tubes (3) are fixed at equal intervals on the bottom of the other side of the flow box (12). The pitch tubes (3) and the dynamic frequency converter tubes (4) are staggered. A drive assembly (5) is provided between the pitch tubes (3) and the dynamic frequency converter tubes (4). The drive assembly (5) selectively strikes the pitch tubes (3) and the dynamic frequency converter tubes (4). An adjustment assembly (6) is provided on the top of the dynamic frequency converter tubes (4). The adjustment assembly (6) is connected to the bottom of the flow box (12). The dynamic frequency converter tube (4) has a water inlet (41) on its top side wall. The adjustment component (6) includes a lower connecting pipe (63), which is a right-angle pipe. The horizontal end of the lower connecting pipe (63) is fixedly inserted into the inlet (41). The vertical end of the lower connecting pipe (63) is fixed with a central pipe (61). The top of the central pipe (61) is fixed with an upper connecting pipe (62), and the upper connecting pipe (62) is connected to the inside of the flow box (12). The drive assembly (5) includes a shaft frame (51), which is fixed inside the sound box (1) between the dynamic frequency converter tube (4) and the pitch tube (3). A first cam (53) is rotatably sleeved on the surface of the shaft frame (51) corresponding to the position of each pitch tube (3). A second cam (54) is slidably sleeved on the surface of the shaft frame (51) corresponding to each dynamic frequency converter tube (4). A hammer (57) is provided on the outside of the shaft frame (51) of the pitch tube (3) and the dynamic frequency converter tube (4). The first cam (53) is in contact with the corresponding hammer (57).

2. The pure physical resonance sound generation device based on fluid level tuning according to claim 1, characterized in that, The water tank (11) has two symmetrical outlets (17) on the side of the top facing the flow box (12). The flow box (12) has a rotating shaft (22) rotatably installed inside. The two ends of the rotating shaft (22) are fixed with water receiving wheels (2). The blades of the water receiving wheels (2) correspond to the positions of the outlets (17). The bottom of the flow box (12) is provided with a drain outlet (16) corresponding to the position of the upper connecting pipe (62) of each set of adjustment components (6), and the upper connecting pipe (62) is fixedly connected to the drain outlet (16).

3. The pure physical resonance sound generation device based on fluid level tuning according to claim 2, characterized in that, The sound box (1) is located at the bottom of the water tank (11) and a return box (15) is fixed thereon. A return pipe (14) is fixed at the top of the side of the water tank (11) away from the outlet (17), and a water pump (13) is fixed at the lower end of the return pipe (14). The water pump (13) is fixedly installed on the outer wall of the water tank (11), and the bottom of the water pump (13) is fixedly connected to the return box (15) through a pipe. The dynamic frequency converter tube (4) has an outlet (42) on its bottom side wall, and the outlet (42) is located at the top of the return box (15).

4. The pure physical resonance sound generation device based on fluid level tuning according to claim 3, characterized in that, The adjustment component (6) further includes: The lower connecting pipe (63) has a block (64), a first electric push rod (65), and a second electric push rod (67). The bottom of the vertical end of the lower connecting pipe (63) is slidably sealed with the first electric push rod (65), and the extended end of the first electric push rod (65) is fixed with the block (64). The bottom of the horizontal end of the lower connecting pipe (63) is fixed with the second electric push rod (67), and the extended end of the second electric push rod (67) is fixedly connected to the bottom of the first electric push rod (65). The outer surface of the first electric push rod (65) is fitted with a third spring (66), and the two ends of the third spring (66) are fixedly connected to the lower connecting tube (63) and the bottom of the first electric push rod (65).

5. The purely physical resonance sound generation device based on fluid level tuning according to claim 4, characterized in that, The driving component (5) also includes: The slide rail (52), the fixed frame (58), and the movable frame (59) are provided on the side of the second cam (54) away from the first cam (53). The movable frame (59) is slidably sleeved on the shaft frame (51). The second cam (54) is rotatably mounted on the surface of the movable frame (59). The fixed frame (58) is provided on the side of the movable frame (59) away from the second cam (54). The fixed frame (58) is rotatably sleeved on the surface of the shaft frame (51). The sound box (1) is located at the bottom of the shaft frame (51) and the slide rail (52) is fixed. The bottom of the fixed frame (58) is fixed inside the slide rail (52). The bottom of the movable frame (59) slides along the inside of the slide rail (52). The first spring (510) is sleeved on the surface of the shaft frame (51) located between the movable frame (59) and the fixed frame (58), and the two ends of the first spring (510) are fixedly connected to the movable frame (59) and the fixed frame (58).

6. The pure physical resonance sound generation device based on fluid level tuning according to claim 5, characterized in that, A slide (68) is slidably sleeved on the surface of the dynamic frequency converter tube (4). One end of the slide (68) is fixedly connected to the extended end of the second electric push rod (67). A horizontal plate (69) is fixed on the outside of the slide (68), and the other end of the horizontal plate (69) is rotatably connected to a connecting rod (610) through a rotating shaft. The other end of the connecting rod (610) is rotatably connected to the top of the moving frame (59) through a rotating shaft.

7. The pure physical resonance sound generation device based on fluid level tuning according to claim 6, characterized in that, The bottom of the flow box (12) is fixed with a sliding frame (55) at the top of the hammer (57) corresponding to the dynamic frequency converter tube (4) and the pitch tube (3). A slider (513) is slidably connected inside the sliding frame (55). A vertical plate (56) is fixed at the bottom of the slider (513). The vertical plate (56) is fixedly connected to the hammer (57). A second spring (514) is fixed between the slider (513) and the slide frame (55), and the first cam (53) and the second cam (54) are pressed into contact with the corresponding vertical plate (56) when they rotate.

8. The pure physical resonance sound generation device based on fluid level tuning according to claim 7, characterized in that, A collar (511) is fixed at the axis of the first cam (53), and the collar (511) is rotatably sleeved on the shaft bracket (51). A locking bolt (512) is threaded into the side of the collar (511) away from the second cam (54), and the locking bolt (512) is in contact with the shaft bracket (51). The shaft frame (51) is equipped with a transmission belt (21) at both ends, and the pulley at the other end of the transmission belt (21) is fixedly connected to the rotating shaft (22).

9. The pure physical resonance sound generation device based on fluid level tuning according to claim 8, characterized in that, The collar (511) has an annular groove (517) on the side facing the second cam (54), and the second cam (54) has a pin (515) fixed at equal intervals at the position corresponding to the annular groove (517). Friction pads (516) are fixed on the top and bottom surfaces of the insert (515).

10. A method for generating sound through pure physical resonance based on fluid level tuning, implemented by the device according to claim 1, characterized in that: The sound generation method includes the following steps: (1) The natural water flow impacts the water impeller along the outlet, causing the shaft and shaft frame to rotate coaxially. The eccentric contours of the first cam and the second cam periodically push the vertical plate of the hammer. (2) The hammer corresponding to the first cam strikes the pitch tube at high speed. After the pitch tubes of different physical lengths are struck, standing wave resonances of different frequencies are generated inside the cavity, thereby outputting a specific pitch. (3) The upper and lower connecting pipes of the adjustment component continuously introduce part of the water flow into the dynamic frequency converter tube. Since the inlet diameter is larger than the outlet diameter, the liquid level in the tube continues to rise. The effective air column length between the top opening and the liquid level is mechanically compressed. The hammer corresponding to the second cam strikes the dynamic frequency converter tube at high speed. The special sound produced by the strike is different depending on the water inlet time of each dynamic frequency converter tube. (4) When the upper connecting pipe of the regulating component stops water intake, the liquid level gradually drops with the water outlet, the effective air column length increases, and the resonant sound wave frequency decreases dynamically. During this process, the sound frequency is continuously adjusted by striking at different time periods. (5) Different installation angles of the first cam result in different striking times, producing different specific melodies. Connecting the corresponding second cam with the first cam can produce different special melodies and create different sound effects.

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