Front Yueshan structure of electric Chinese zither

Abstract

The invention relates to the technical field of electroacoustic musical instruments, in particular to a front Yueshan structure of an electric Chinese zither, which comprises a main body mechanism, a front Yueshan mechanism and an adjusting mechanism, and is characterized in that the main body mechanism comprises a zither body, a mounting groove, two first threaded holes, a groove, a frame plate, a cover plate, four second threaded holes and two first bolts, the mounting groove is formed in the upper surface of the zither body, and the groove is formed in the upper surface of the zither body; the groove is formed in the lower surface of the zither body; the front Yueshan mechanism comprises a sound beam, a sound pickup groove, a sound pickup rod, a plurality of zither strings, a horse bone, a plurality of notches, a third threaded hole and two guide holes, and the outer side wall of the sound beam is inserted into the inner side wall of the mounting groove. Therefore, the sound beam is more convenient to disassemble, replace and maintain, the use experience is effectively improved, the sound beam is more efficient in maintenance and use, the overall performance is improved, and the service life is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of electro-acoustic musical instruments, in particular to a front Yueshan structure of an electric guzheng. Background Art

[0002] Guzheng is a complex stringed instrument with beautiful timbre and rich expressiveness. It is long and flat in appearance and consists of a frame, a top plate and a bottom plate. Guzheng mainly includes an excitation system, a vibration system and a conduction system. The excitation system is the source of the ability of the string instrument to vibrate. For Guzheng, it is the "artificial armor" that plucks the strings. The vibration system of Guzheng, namely the strings, is the core component that causes the sound of Guzheng. However, relying solely on the vibration of the strings to drive the vibration of the surrounding air medium to produce sound is far from meeting the needs of Guzheng performance. This requires the conduction system of Guzheng - horse bones. The shape of horse bones not only determines the loudness of Guzheng, but also determines the mellow timbre of Guzheng. As the saying goes: "A good horse goes with a good saddle." How good strings "sit" on suitable horse bones is crucial. If the match is not ideal, it will seriously affect the sound quality and timbre of Guzheng. A Chinese patent publication (publication number: CN207052289U) discloses a front yueshan structure of an electric guzheng, wherein the front yueshan is provided with a sound beam that matches the arc shape of the electric guzheng body, and an electric sound pickup device is provided on the sound beam, the sound pickup device includes a sound pickup rod and a horse bone, a sound pickup groove is provided on the top of the sound beam, and the sound pickup rod is provided at the bottom of the sound pickup groove; the horse bone is arc-shaped, and the concave bottom surface of the horse bone is pressed on the top surface of the sound pickup rod, and the strings of a number of electric guzhengs are pressed on the arched top surface of the horse bone. The top and bottom of the cross-section of the horse bone are both arc-shaped, and are wide at the top and narrow at the bottom. The utility model has the characteristics of stable working performance and more perfect playing effect. However, in the actual use process, the front Yueshan, as an important component for supporting the strings and transmitting vibrations to the pickup system, is often inconvenient to install and maintain. When the front Yueshan is fixedly installed on the electric guzheng, a relatively tight connection method is usually adopted to ensure stability during the performance. However, this design makes the operation quite cumbersome and time-consuming when the front Yueshan needs to be disassembled, replaced or maintained. In addition, the user of the electric guzheng may have different requirements for the height of the front Yueshan due to personal habits, playing style or the needs of specific repertoires. In the existing design, the height of the front Yueshan is often fixed at the time of production, and it is difficult to adjust according to the actual needs of the user. This not only limits the scope of application of the electric guzheng, but also brings unnecessary troubles to the performer. For this reason, a front Yueshan structure of the electric guzheng is proposed. Summary of the invention

[0003] In view of this, the present invention provides a front Yueshan structure of an electric guzheng to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0004] The technical solution of the present invention is implemented as follows: the front Yueshan structure of the electric guzheng includes a main body mechanism, a front Yueshan mechanism and an adjustment mechanism, the main body mechanism includes a guzheng body, a mounting groove, two first threaded holes, a groove, a frame plate, a cover plate, four second threaded holes and two first bolts, the mounting groove is opened on the upper surface of the guzheng body, and the groove is opened on the lower surface of the guzheng body; The front Yueshan mechanism includes a sound beam, a sound pickup groove, a sound pickup rod, a plurality of zither strings, a horse bone, a plurality of notches, a third threaded hole and two guide holes, the outer wall of the sound beam is inserted into the inner wall of the mounting groove, and the third threaded hole is opened at the center of the lower surface of the sound beam; The adjustment mechanism includes a threaded rod, a knob, two guide rods, two pin blocks and two second bolts. One end of the threaded rod passes through the center of the inner bottom wall of the mounting groove. The outer wall of the threaded rod is rotatably connected to the zither body through a bearing. The threaded rod is threadedly connected to the inner wall of the third threaded hole.

[0005] Further preferably, the outer side wall of the frame plate is fixedly connected to the inner side wall of the groove, and the cover plate is arranged inside the groove and below the frame plate.

[0006] Further preferably, four of the second threaded holes are symmetrically opened on the lower surfaces of the frame plate and the cover plate, and two of the first bolts are rotatably connected to the inner side walls of the second threaded holes on the frame plate and the cover plate, respectively.

[0007] Further preferably, the sound pickup groove is opened on the upper surface of the sound beam.

[0008] Further preferably, the sound pickup rod is installed inside the sound pickup slot.

[0009] Further preferably, one end of the plurality of zither strings are fixedly connected to the zither body, the bottom of the horse bone is fixedly connected to the top of the pickup rod, the plurality of notches are opened on the lower surface of the horse bone, and the plurality of zither strings are pressed on the upper surface of the horse bone.

[0010] Further preferably, the two guide rods are symmetrically fixedly connected to the inner bottom wall of the mounting groove, the two guide holes are symmetrically opened on the lower surface of the sound beam, the guide rods are slidingly connected to the inner side walls of the guide holes, and the knob is fixedly connected to the bottom of the threaded rod.

[0011] Further preferably, the two first threaded holes are symmetrically opened on both sides of the zither body, the two pin blocks are arranged on both sides of the sound beam, located on the inner wall of the mounting groove, and the two second bolts are respectively threadedly connected to the inner walls of the two first threaded holes.

[0012] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution: 1. The present invention adopts an improved front mount design, inserts the sound beam into the mounting groove, and fixes it through a threaded rod and a pin block, so that the disassembly, replacement and maintenance process of the sound beam becomes more convenient, effectively improves the user experience, is more efficient in maintenance and use, and improves the overall performance and service life.

[0013] 2. The present invention introduces a height-adjustable mechanism, which can be flexibly adjusted according to the user's personalized needs. The height of the sound beam is adjusted by a threaded rod, which meets the needs of different players, enhances the applicability of the electric guzheng, and brings more convenience and comfort to the players.

[0014] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural diagram of the front Yueshan structure of the electric guzheng of the present invention; Figure 2 For the present invention Figure 1 Another perspective structure diagram; Figure 3 It is a cross-sectional structural diagram of the main mechanism and the regulating mechanism of the present invention; Figure 4 It is a structural diagram of the zither body of the present invention; Figure 5 It is the exploded structure diagram of the front Yueshan mechanism of the present invention; Figure 6 For the present invention Figure 5 Another perspective structure diagram; Figure 7 This is an exploded structural diagram of the connection between the frame plate and the cover plate of the present invention.

[0017] Figure numerals: 1. main body; 11. zither body; 12. mounting groove; 13. first threaded hole; 14. groove; 15. frame plate; 16. cover plate; 17. second threaded hole; 18. first bolt; 2. front Yueshan mechanism; 21. sound beam; 22. pickup groove; 23. pickup rod; 24. zither string; 25. horse bone; 26. notch; 27. third threaded hole; 28. guide hole; 3. adjustment mechanism; 31. threaded rod; 32. knob; 33. guide rod; 34. pin block; 35. second bolt. DETAILED DESCRIPTION

[0018] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0019] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-7 As shown, the embodiment of the present invention provides a front Yueshan structure of an electric guzheng, comprising a main body mechanism 1, a front Yueshan mechanism 2 and an adjusting mechanism 3, wherein the main body mechanism 1 comprises a guzheng body 11, a mounting groove 12, two first threaded holes 13, a groove 14, a frame plate 15, a cover plate 16, four second threaded holes 17 and two first bolts 18, the mounting groove 12 is provided on the upper surface of the guzheng body 11, and the groove 14 is provided on the lower surface of the guzheng body 11; The front Yueshan mechanism 2 includes a sound beam 21, a sound pickup groove 22, a sound pickup rod 23, a plurality of zither strings 24, a horse bone 25, a plurality of notches 26, a third threaded hole 27 and two guide holes 28. The outer wall of the sound beam 21 is inserted into the inner wall of the mounting groove 12, and the third threaded hole 27 is opened at the center of the lower surface of the sound beam 21. The adjusting mechanism 3 includes a threaded rod 31, a knob 32, two guide rods 33, two pin blocks 34 and two second bolts 35. One end of the threaded rod 31 passes through the center of the inner bottom wall of the mounting groove 12. The outer wall of the threaded rod 31 is rotatably connected to the kite body 11 through a bearing. The threaded rod 31 is threadedly connected to the inner wall of the third threaded hole 27.

[0021] In one embodiment, the outer wall of the frame plate 15 is fixedly connected to the inner wall of the groove 14, and the cover plate 16 is arranged inside the groove 14 and below the frame plate 15; through the setting of the cover plate 16, when the groove 14 needs to be covered, the cover plate 16 is placed in the groove 14, supported by the frame plate 15, and the groove 14 is covered.

[0022] In one embodiment, four second threaded holes 17 are symmetrically opened on the lower surfaces of the frame plate 15 and the cover plate 16, and two first bolts 18 are rotatably connected to the inner side walls of the second threaded holes 17 on the frame plate 15 and the cover plate 16, respectively; through the provision of the first bolts 18, after the cover plate 16 is placed in the groove 14, the first bolts 18 are inserted into the second threaded holes 17 on the frame plate 15 and the cover plate 16 to fix the position of the cover plate 16. When the cover plate 16 needs to be removed, the first bolts 18 only need to be turned out from the second threaded holes 17 on the frame plate 15 and the cover plate 16 to release the fixation of the cover plate 16, so as to facilitate the removal of the cover plate 16.

[0023] In one embodiment, the sound pickup groove 22 is opened on the upper surface of the sound beam 21; through the setting of the sound pickup groove 22, the sound pickup rod 22 is installed inside the sound pickup groove 23, which is convenient for installing the sound pickup rod 23.

[0024] In one embodiment, the pickup rod 23 is installed inside the pickup slot 22; through the setting of the pickup rod 23, the pickup rod 23 collects the vibration generated by the zither string 24, and then converts the vibration into an electrical signal of the corresponding vibration, and then sends it to the power amplifier for amplification. The processed electrical signal can be transmitted to other devices via cables or wirelessly to realize sound input.

[0025] In one embodiment, one ends of multiple zither strings 24 are fixedly connected to the top of the zither body 11, the bottom of the horse bone 25 is fixedly connected to the top of the pickup rod 23, multiple notches 26 are opened on the lower surface of the horse bone 25, and multiple zither strings 24 are pressed on the upper surface of the horse bone 25; the top and bottom of the cross-section of the horse bone 25 are both arc-shaped, and are wide at the top and narrow at the bottom. The wider top of the horse bone 25 can stably and efficiently absorb and transmit the vibration frequency of the zither strings 24, and the bottom of the horse bone 25 becomes narrower, and the absorbed vibration frequency is concentrated to the corresponding area at the bottom of the horse bone 25, ensuring the original ecology of the transmission and reducing the probability of distortion. The zither strings 24 are pressed on the horse bone 25, and the force of the zither strings 24 playing is transmitted to the bottom of the horse bone 25 , and dispersed through the gaps 26 to ensure the pressure transmitted by different zither strings 24, effectively ensuring the effectiveness of the force transmission of the vibration of the zither strings 24. A cavity is formed between the multiple gaps 26 and the fitted pickup rods 23, and the force is dispersed in the gaps 26, thereby causing the air in the cavity to vibrate. The air vibration in turn strengthens the vibration of the air and the inner wall of the cavity through the inner wall of the cavity and reflection. Multiple vibrations amplify the sound. The zither strings 24 are overlapped in the middle position of the gaps 26, and the vibration of each zither string 24 can be diffused in the relative gaps 26, solving the problems of mixing, inaccurate pickup, and poor control of playing strength. This effect is a commonly used technical means for existing electric zithers, and I will not elaborate on it again.

[0026] In one embodiment, two guide rods 33 are symmetrically fixedly connected to the inner bottom wall of the mounting groove 12, two guide holes 28 are symmetrically opened on the lower surface of the sound beam 21, the guide rods 33 are slidably connected to the inner side walls of the guide holes 28, and the knob 32 is fixedly connected to the bottom of the threaded rod 31; through the setting of the guide holes 28, after the sound beam 21 is inserted into the mounting groove 12, the guide rods 33 are inserted into the guide holes 28, which limits the position of the sound beam 21 and improves the stability of the sound beam 21. Through the setting of the knob 32, the knob 32 is rotated to facilitate the threaded rod 31 to rotate.

[0027] In one embodiment, two first threaded holes 13 are symmetrically opened on both sides of the zither body 11, two pin blocks 34 are arranged on both sides of the sound beam 21, located on the inner side walls of the mounting groove 12, and two second bolts 35 are respectively threadedly connected to the inner side walls of the two first threaded holes 13; through the arrangement of the pin blocks 34, when the sound beam 21 is inserted into the mounting groove 12, the pin blocks 34 are inserted into the gap between the sound beam 21 and the mounting groove 12, the sound beam 21 is clamped to improve the stability of the sound beam 21, and then the second bolts 35 are inserted into the first threaded holes 13, and the second bolts 35 are pressed against the pin blocks 34 to fix the position of the pin blocks 34 to prevent the pin blocks 34 from shaking.

[0028] When the present invention is working: first, when installing the sound beam 21, the sound beam 21 is inserted into the installation groove 12, the threaded rod 31 is inserted into the third threaded hole 27 on the sound beam 21, and the guide rod 33 is inserted into the guide hole 28, and then the knob 32 is rotated to drive the threaded rod 31 to rotate, and the threaded rod 31 is turned into the third threaded hole 27. According to the installation height of the sound beam 21, the distance of the threaded rod 31 inserted into the third threaded hole 27 is adjusted. After the installation height of the sound beam 21 is adjusted, the cover plate 16 is placed in the groove 14, and the first bolt 18 is inserted into the second threaded hole 17 on the frame plate 15 and the cover plate 16 to fix the position of the cover plate 16, and then the pin block 34 is inserted into the gap between the sound beam 21 and the installation groove 12 to clamp the sound beam 21 to improve the stability of the sound beam 21, and then the second bolt 35 is inserted into the first threaded hole 13. The second bolt 35 is against the pin block 34 to fix the position of the pin block 34 to prevent the pin block 34 from shaking, and the tightness of the zither string 24 is adjusted to press the zither string 24 onto the horse bone 25 in the middle position of the notch 26. The vibration of each zither string 24 can be diffused in the corresponding notch 26, and the force of the zither string 24 is transmitted to the bottom of the horse bone 25 and dispersed through the notch 26 to ensure the pressure transmitted by different zither strings 24, and effectively ensure the effectiveness of the force transmission of the vibration of the zither string 24. A cavity is formed between the multiple notches 26 and the fitted pickup rod 23, and the force is dispersed in the notch 26, thereby causing the air in the cavity to vibrate. The air vibration in turn strengthens the vibration of the air and the inner wall of the cavity through the inner wall of the cavity and reflection. Multiple vibrations amplify the sound, solving the problems of mixing, inaccurate pickup, and poor control of playing strength.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. The front Yueshan structure of the electric guzheng is characterized by: The invention comprises a main body mechanism (1), a front Yueshan mechanism (2) and an adjusting mechanism (3); the main body mechanism (1) comprises a zither body (11), a mounting groove (12), two first threaded holes (13), a groove (14), a frame plate (15), a cover plate (16), four second threaded holes (17) and two first bolts (18); the mounting groove (12) is formed on the upper surface of the zither body (11), and the groove (14) is formed on the lower surface of the zither body (11); The front Yueshan mechanism (2) comprises a sound beam (21), a sound pickup groove (22), a sound pickup rod (23), a plurality of zither strings (24), a horse bone (25), a plurality of notches (26), a third threaded hole (27) and two guide holes (28); the outer wall of the sound beam (21) is inserted into the inner wall of the mounting groove (12), and the third threaded hole (27) is opened at the center of the lower surface of the sound beam (21); The adjusting mechanism (3) comprises a threaded rod (31), a knob (32), two guide rods (33), two pin blocks (34) and two second bolts (35); one end of the threaded rod (31) passes through the center of the inner bottom wall of the mounting groove (12); the outer side wall of the threaded rod (31) is rotatably connected to the zither body (11) via a bearing; and the threaded rod (31) is threadedly connected to the inner side wall of the third threaded hole (27).

2. The front Yueshan structure of the electric guzheng according to claim 1, characterized in that: The outer side wall of the frame plate (15) is fixedly connected to the inner side wall of the groove (14), and the cover plate (16) is arranged inside the groove (14) and is located below the frame plate (15).

3. The front yoke structure of the electric zither according to claim 1, characterized in that: Four second threaded holes (17) are symmetrically arranged on the lower surfaces of the frame plate (15) and the cover plate (16), and two first bolts (18) are rotatably connected to the inner side walls of the second threaded holes (17) on the frame plate (15) and the cover plate (16).

4. The front yoke structure of the electric guzheng according to claim 1, characterized in that: The sound pickup groove (22) is arranged on the upper surface of the sound beam (21).

5. The front yoke structure of the electric guzheng according to claim 1, characterized in that: The sound pickup rod (23) is installed inside the sound pickup groove (22).

6. The front yoke structure of the electric guzheng according to claim 1, characterized in that: One end of the plurality of zither strings (24) is fixedly connected to the zither body (11), the bottom of the horse bone (25) is fixedly connected to the top of the sound pickup rod (23), the plurality of notches (26) are opened on the lower surface of the horse bone (25), and the plurality of zither strings (24) are pressed onto the upper surface of the horse bone (25).

7. The front yoke structure of the electric zither according to claim 1, characterized in that: The two guide rods (33) are symmetrically fixedly connected to the inner bottom wall of the mounting groove (12); the two guide holes (28) are symmetrically opened on the lower surface of the sound beam (21); the guide rods (33) are slidably connected to the inner side walls of the guide holes (28); and the knob (32) is fixedly connected to the bottom of the threaded rod (31).

8. The front yoke structure of the electric guzheng according to claim 1, characterized in that: The two first threaded holes (13) are symmetrically opened on both sides of the zither body (11), the two pin blocks (34) are arranged on both sides of the sound beam (21), and are located on the inner side walls of the installation groove (12), and the two second bolts (35) are respectively threadedly connected to the inner side walls of the two first threaded holes (13).

Images