Double-face playing seven-stringed plucked instrument

Abstract

The utility model provides a double-sided playing seven-stringed plucked instrument, which comprises a double-sided seven-stringed plucked instrument and an instrument frame, an overturning signal is sent to a first Arduino main board through an overturning switch, the processed overturning signal is transmitted to a second Arduino main board through a first wireless communication module and a second wireless communication module, a driving steering engine drives a first rotating shaft and a second rotating shaft to rotate, and the double-sided playing seven-stringed plucked instrument is played. Therefore, the double-sided guqin can be played by switching the first guqin body panel and the second guqin body panel which adopt different or the same string fixing mode to fix strings, multiple purposes of one guqin are achieved, the guqin can meet the playing requirements of various tones of music, the playing cost can be reduced, and the playing process can be simplified.

Description

Technical Field

[0001] The present invention relates to the field of musical instruments, in particular to a double-sided guqin. Background Art

[0002] The traditional guqin consists of a top surface with strings, a yueshan (mountain), and thirteen frets (pictured on the qin frets) for playing, and a bottom surface with structures such as a dragon pond, phoenix pond, and goose feet. For example, Chinese patent CN217306013U provides a guqin building block teaching aid that uses a detachable connection structure to reveal the distribution of various components of the traditional guqin.

[0003] The traditional guqin is a single-sided instrument, often tuned in a variety of ways, including straight tuning, tight five-string tuning, and slow three-string tuning. Each guqin can only use one tuning method, and different tuning methods result in different tones, suitable for different pieces of music. Because the guqin is difficult to tune, playing music with different tones requires either a new guqin or the use of multiple players, which can increase performance costs and complicate the performance process. Utility Model Content

[0004] In order to solve the problem in the prior art that it is difficult to change the tune of the guqin, which leads to increased costs or complicated playing procedures, the utility model provides a double-sided guqin. By providing a double-sided guqin, the player can flip the body of the guqin and switch the surface of the guqin with different tuning methods for playing.

[0005] A double-sided guqin comprises a double-sided guqin and a guqin frame; the double-sided guqin comprises a guqin body, a flip switch for sending a flip signal is provided on the guqin body, and a dragon pool and a phoenix pond are provided on the side of the guqin body; the guqin body comprises a first guqin body panel and a second guqin body panel, a resonance cavity is formed between the first guqin body panel and the second guqin body panel, and strings are provided on both the first guqin body panel and the second guqin body panel; a sound insulation board is provided in the dragon pool, a first Arduino mainboard and a first wireless communication module electrically connected to the first Arduino mainboard are provided on the sound insulation board, and the flip switch is electrically connected to the first Arduino mainboard; the first Arduino mainboard is used to process the flip signal sent by the flip switch and send it through the first wireless communication module; the guqin frame comprises a base, a first bracket side panel and a second bracket side panel are provided on both sides of the base, and a mounting cavity is provided in the base , the mounting cavity is provided with a second Arduino mainboard and a second wireless communication module electrically connected to the second Arduino mainboard, and the first wireless communication module is wirelessly connected to the second wireless communication module; the first bracket side panel and the second bracket side panel are respectively provided with a first bearing and a second bearing, and the first bearing and the second bearing are respectively provided with a first rotating shaft and a second rotating shaft, the double-sided guqin is fixedly installed between the first rotating shaft and the second rotating shaft, and the other ends of the first rotating shaft and the second rotating shaft are respectively provided with a first flange coupling and a second flange coupling; at least one of the first flange coupling and the second flange coupling is connected to a servo coupling, and the other end of the servo coupling is fixedly connected to a servo for driving the first rotating shaft and the second rotating shaft to rotate, the servo is electrically connected to the second Arduino mainboard, and the second Arduino mainboard is used to process the flip signal received by the second wireless communication module and thereby drive the servo to rotate.

[0006] Furthermore, the first flange coupling and the second flange coupling each include a flange A and a sleeve A arranged in the central part of the flange A; the servo coupling includes a flange B and a sleeve B arranged in the central part of the flange B; the flange A and the flange B can be fixedly connected by bolts, and the sleeve B is sleeved on the driving shaft of the servo.

[0007] Furthermore, the first rotating shaft and the second rotating shaft are both screw rods, and the screw rods include a hexagonal nut and a rod body. The end of the rod body is provided with a thread. Both ends of the double-sided guqin are built-in and fixed with hexagonal nuts matching the hexagonal nuts. The double-sided guqin is fixedly connected through the cooperation of the hexagonal nuts and the hexagonal nuts; the sleeve A is sleeved on the end of the rod body and fixedly connected through the thread.

[0008] Furthermore, the sound insulation board is also provided with a battery, a charge and discharge interface and a power switch. The battery is electrically connected to the first Arduino mainboard through the power switch, and the charge and discharge interface is electrically connected to the battery.

[0009] Furthermore, the strings are steel strings or nylon strings.

[0010] Furthermore, a piezoelectric pickup is mounted on each of the first and second body panels, and the piezoelectric pickup is an arc-shaped structure adapted to the first and second body panels.

[0011] Furthermore, a servo power supply is provided in the installation cavity, and the servo power supply is electrically connected to the second Arduino mainboard.

[0012] Furthermore, the strings on the first and second body panels are tuned differently.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a double-sided guqin, which sends a flip signal to a first Arduino mainboard through a flip switch, and transmits the processed flip signal to a second Arduino mainboard via a first wireless communication module and a second wireless communication module, driving a servo to rotate the first rotating shaft and the second rotating shaft, thereby driving the double-sided guqin to flip on the guqin stand, so that the double-sided guqin switches between the first and second body panels of the guqin with strings tuned by different or the same tuning methods for performance, thereby realizing multiple uses of one guqin, so that it can meet the performance needs of a variety of music with different tones, which is conducive to reducing performance costs and simplifying the performance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a double-sided guqin provided by the present invention;

[0015] Figure 2 The utility model provides Figure 1 Schematic diagram of the decomposition structure of part A;

[0016] Figure 3 This is a schematic cross-sectional view of a double-sided guqin provided by the present invention;

[0017] Figure 4 This is a schematic structural diagram of the sound insulation board provided by the utility model.

[0018] Figure ID

[0019] 1. Double-sided guqin; 11. Flip switch; 12. Guqin body; 121. First body panel; 122. Second body panel; 123. Strings; 13. Dragon Pond; 14. Phoenix Marsh; 15. Soundproofing board; 151. Charging and discharging port; 152. Battery; 153. First Arduino board; 154. First wireless communication module; 155. Power switch; 16. Resonance chamber; 17. Hexagonal nut; 18. Mounting holes

[0020] 2. Music stand; 21. Base; 22. First bracket side panel; 23. Second bracket side panel; 24. Mounting cavity; 25. Second Arduino board; 26. Second wireless communication module; 27. Servo power supply; 28. First bearing; 29. ​​Second bearing;

[0021] 30. First rotating shaft; 301. Hexagonal nut; 302. Rod; 303. Thread; 31. Second rotating shaft; 32. First flange coupling; 321. Flange A; 322. Bushing A; 33. Second flange coupling; 34. Servo coupling; 341. Flange B; 342. Bushing B; 35. Servo. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Furthermore, the terms “first,” “second,” etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0024] See Figure 1 、 Figure 3 and Figure 4 As shown, a double-sided guqin for playing includes a double-sided guqin 1 and a guqin stand 2 , wherein the double-sided guqin 1 is installed on the guqin stand 2 .

[0025] Specifically, the double-sided guqin 1 includes a guqin body 12, on which a flip switch 11 is provided, and a dragon pool 13 and a phoenix pond 14 are provided on the side of the guqin body 12, and at least one of the dragon pool 13 and the phoenix pond 14 is provided with a sound insulation board 15 for tuning, and the sound insulation board 15 completely or partially blocks the dragon pool 13 or the phoenix pond 14; the guqin body 12 includes a first body panel 121 and a first body panel 122, and a resonance cavity 16 is formed between the first body panel 121 and the second body panel 122, and the resonance cavity 16 is communicated with the dragon pool 13 and the phoenix pond 14.

[0026] The dragon pool 13 and the phoenix pond 14 are square through holes that penetrate the body of the instrument from the side of the instrument body 12. A sound insulation board 15 is provided in the dragon pool 13, and the sound insulation board 15 is slidably connected to the dragon pool 13. The sound insulation board 15 is provided with a plurality of interconnected mounting grooves (not marked in the figure). A first Arduino mainboard 153 and a first wireless communication module 154 electrically connected to the first Arduino mainboard 153 are respectively provided in the mounting grooves. The flip switch 11 is electrically connected to the first Arduino mainboard 153; the first Arduino mainboard 153 is used to process the flip signal sent by the flip switch 11 and send it through the first wireless communication module 154.

[0027] See Figure 1 and Figure 3 、 Figure 4 As shown, a battery 151, a charge and discharge interface 152 and a power switch 155 are further provided on the mounting groove of the sound insulation board 15. The battery 151 is electrically connected to the first Arduino mainboard 153 through the power switch 155, and the charge and discharge interface 152 is electrically connected to the battery. In this embodiment, the battery 151 is a 3.7V lithium battery, which is charged through the charge and discharge interface 152 and supplies power to the first Arduino mainboard 153 and the first wireless communication module 154 electrically connected to the first Arduino mainboard 153. The power switch 155 is used to control the on and off of the power supply of the battery 151.

[0028] The dragon pool 13 and the phoenix pond 14 serve as sound holes of the double-sided guqin 1. The opening area of ​​the dragon pool 13 can be adjusted by sliding the sound insulation board 15, thereby achieving the effect of controlling the timbre and volume of the guqin.

[0029] The first and second body panels 121, 122 have the same structure, and are fixed to the second body panel 122. The first and second body panels 121, 122 are each provided with strings 123 tuned using different tuning methods. In this embodiment, the first body panel 121 is tuned in a straight line, while the first body panel 122 is tuned in a tight five-string line. This allows the first and second body panels 121, 122 to play music with different tonal requirements, enriching the performance of the double-sided guqin and accommodating a wider range of music, thus achieving multi-purpose use.

[0030] Preferably, the strings 123 are steel strings or nylon strings. A piezoelectric pickup (not shown) is mounted on each of the first body panels 121 and 122 . The piezoelectric pickup is an arc-shaped structure adapted to the first body panels 121 and 122 .

[0031] The guqin frame includes a base. The base 21 defines a mounting cavity 24. Within the mounting cavity 5 are a second Arduino motherboard 25, a second wireless communication module 26 electrically connected to the second Arduino motherboard 25, and a servo power supply 27. The servo power supply 27 is electrically connected to the second Arduino motherboard 25 to provide power to the second Arduino motherboard 25. The first wireless communication module 154 is wirelessly connected to the second wireless communication module 26, enabling wireless signal transmission. This avoids the problem of wired transmission causing entanglement when the double-sided guqin 1 is flipped over. Both the first wireless communication module 154 and the second wireless communication module 26 utilize the NRF2401 wireless communication module.

[0032] The base 21 is provided with a first bracket side panel 22 and a second bracket side panel 23 on both sides respectively. The first bracket side panel 3 and the second bracket side panel 4 are provided with a first bearing 28 and a second bearing 29 respectively. The first bearing 28 and the second bearing 29 are provided with a first rotating shaft 30 and a second rotating shaft 31 respectively. The double-sided guqin 1 is fixedly installed between the first rotating shaft 30 and the second rotating shaft 31, and is connected to the first bearing 28 and the second bearing 29 through the first rotating shaft 30 and the second rotating shaft 31.

[0033] refer to Figure 1 、 Figure 2 Figure 3 As shown, the other ends of the first rotating shaft 30 and the second rotating shaft 31 are respectively provided with a first flange coupling 32 and a second flange coupling 33; at least one of the first flange coupling 32 and the second flange coupling 33 is connected to a servo coupling 34. In this embodiment, the first flange coupling 32 is connected to the servo coupling 34. The other end of the servo coupling 34 is fixedly connected to a servo 35 for driving the first rotating shaft 30 and the second rotating shaft 31 to rotate. The servo 35 is electrically connected to the second Arduino mainboard 25. The second Arduino mainboard 25 is used to process the flip signal received by the second wireless communication module 26 from the first wireless communication module 154, thereby driving the servo 35 to rotate. The servo 35 drives the first rotating shaft 30 and the second rotating shaft 31 to rotate through the servo coupling 34, thereby causing the double-sided guqin 1 to flip.

[0034] The first rotating shaft 30 and the second rotating shaft 31 are each a screw rod, each comprising a hexagonal nut 301 and a rod body 302. The rod body 302 has a threaded end 303. The double-sided guqin 1 has mounting holes 18 at both ends, each of which is internally fixed with a hexagonal nut 17 that matches the hexagonal nut 301. The double-sided guqin 1 is fixedly connected through the mating of the hexagonal nut 301 and the hexagonal nut 17. The shaft sleeve A322 is sleeved on the end of the rod body 302 and fixedly connected via the threaded end 303. In this embodiment, the shaft sleeve A322 of the first flange coupling 32 is fixed to the end of the rod body 302 of the first rotating shaft 11. The first rotating shaft 30 rotates in accordance with the rotation of the first flange coupling 32, thereby driving the rotation of the second rotating shaft 31.

[0035] The first and second flange couplings 32, 33 each include a flange A321 and a sleeve A322 disposed in the center of flange A321. The steering gear coupling 34 includes a flange B341 and a sleeve B342 disposed in the center of flange B341. Flanges A321 and B341 can be fixedly connected by bolts, and sleeve B342 is sleeved onto the driving shaft of the steering gear 35. In this embodiment, flange A321 of the first flange coupling 32 is fixedly connected to flange B341 of the steering gear coupling 34, allowing the steering gear coupling 34 to rotate with the driving shaft of the steering gear 35, thereby driving flange A321, which is fixedly connected to the steering gear coupling 34, to rotate, thereby driving the first flange coupling 32 to rotate.

[0036] In this embodiment, the working principle of the utility model is as follows: turn on the power switch 1, connect the battery 152 power supply, and send a flip signal to the first Arduino mainboard 153 by turning on the flip switch 11. After the first Arduino mainboard 153 processes the signal, it is transmitted to the second Arduino mainboard 25 through the first wireless communication module 154 and the second wireless communication module 26, thereby driving the servo 35 to drive the servo coupling 34 to rotate, and then the first flange coupling 32 connected to the servo coupling 34 drives the first rotating shaft 30 and the second rotating shaft to rotate 11, thereby realizing the flipping of the double-sided guqin 1 and switching the first body panel 121 or the second body panel 122 for performance.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive technical solutions. Those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present invention that do not depart from the purpose and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A double-sided guqin, characterized in that: The double-sided guqin comprises a guqin body and a guqin stand; the double-sided guqin comprises a guqin body, a flip switch for sending a flip signal is provided on the guqin body, and a dragon pool and a phoenix pond are provided on the side of the guqin body; The body of the zither comprises a first body panel and a second body panel, a resonance cavity is formed between the first body panel and the second body panel, the dragon pool and the phoenix pond are connected to the resonance cavity, and strings are provided on the first body panel and the second body panel; A sound insulation board is provided in the dragon pool, a first Arduino mainboard and a first wireless communication module electrically connected to the first Arduino mainboard are provided on the sound insulation board, and the flip switch is electrically connected to the first Arduino mainboard; the first Arduino mainboard is used to process the flip signal sent by the flip switch and send it through the first wireless communication module; The zither frame includes a base, with a first bracket side panel and a second bracket side panel provided on both sides of the base, a mounting cavity provided in the base, a second Arduino mainboard and a second wireless communication module electrically connected to the second Arduino mainboard provided in the mounting cavity, and the first wireless communication module and the second wireless communication module being wirelessly connected; a first bearing and a second bearing are provided on the first bracket side panel and the second bracket side panel, respectively, a first rotating shaft and a second rotating shaft are provided in the first bearing and the second bearing, respectively, the double-sided guqin is fixedly mounted between the first rotating shaft and the second rotating shaft, and a first flange coupling and a second flange coupling are provided at the other ends of the first rotating shaft and the second rotating shaft, respectively; At least one of the first flange coupling and the second flange coupling is connected to a servo coupling. The other end of the servo coupling is fixedly connected to a servo for driving the first rotating shaft and the second rotating shaft to rotate. The servo is electrically connected to a second Arduino mainboard. The second Arduino mainboard is used to process the flip signal received by the second wireless communication module and thereby drive the servo to rotate.

2. The double-sided guqin according to claim 1, characterized in that: The first flange coupling and the second flange coupling both include a flange A and a sleeve A arranged in the central part of the flange A; the steering gear coupling includes a flange B and a sleeve B arranged in the central part of the flange B; the flange A and the flange B can be fixedly connected by bolts, and the sleeve B is sleeved on the driving shaft of the steering gear.

3. The double-sided guqin according to claim 2, characterized in that: The first rotating shaft and the second rotating shaft are both screw rods, and the screw rods include a hexagonal nut and a rod body. The end of the rod body is provided with a thread. Both ends of the double-sided guqin are built-in and fixed with hexagonal nuts matching the hexagonal nuts. The double-sided guqin is fixedly connected through the cooperation of the hexagonal nut and the hexagonal nut; the sleeve A is sleeved on the end of the rod body and fixedly connected by the thread.

4. The double-sided guqin according to claim 1, characterized in that: The sound insulation board is also provided with a battery, a charge and discharge interface and a power switch. The battery is electrically connected to the first Arduino mainboard via the power switch, and the charge and discharge interface is electrically connected to the battery.

5. The double-sided guqin according to claim 1, characterized in that: The strings are steel strings or nylon strings.

6. The double-sided guqin according to claim 1, characterized in that: The first and second piano body panels are both equipped with piezoelectric pickups, which are arc-shaped structures adapted to the first and second piano body panels.

7. The double-sided guqin according to claim 1, characterized in that: A servo power supply is also provided in the installation cavity, and the servo power supply is electrically connected to the second Arduino mainboard.

8. The double-sided guqin according to claim 1, characterized in that: The strings on the first and second body panels are tuned in different ways.

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