CN218631352U - Zheng with sound tunnel - Google Patents

Abstract

The utility model provides a band sound tunnel zither, includes the resonant tank, and the box of this resonant tank is formed by panel, bottom plate and curb plate amalgamation, its characterized in that: an upper Feng-shaped groove is formed in the inner wall of the panel to form an upper Feng-shaped sound tunnel; a lower Feng-shaped groove is formed in the inner wall of the bottom plate to form a lower Feng-shaped sound tunnel; six transom beams are fixedly arranged between the panel and the bottom plate, three of the transom beams are arranged on the left half groove body position of the 'feng' shaped groove, and three of the transom beams are arranged on the right half groove body position of the 'feng' shaped groove. The scheme breaks the constraint of the traditional design of the internal structure of the traditional Chinese zither resonator, and a new improved design scheme is provided by a large container, so that the problems that the high pitch area is not bright and the low pitch area is not smooth when the traditional Chinese zither is played are solved.

Description

Zheng with sound tunnel

Technical Field

The utility model relates to a chinese tradition plucked musical instrument, in particular to vocal tunnel zither.

Background

The koto is also named as Hanzheng, qin zither, yao zither and luan zither, is a zither musical instrument in the traditional musical instruments of Chinese Han nationality, and belongs to plucked musical instruments. It is one of the unique and important national musical instruments in China. Its timbre is graceful, the range of sound is wide, the playing skill is abundant, has fairly strong expressive force, therefore it is deeply loved by the masses. The Chinese zither structure consists of a panel, wild goose columns (also called as bridge in some fields), strings, a front mountain, string nails, a tuning box, a piano foot, a rear mountain, side plates, a sound outlet, a bottom plate and string penetrating holes, wherein the panel, the bottom plate and the side plates are spliced to form a resonance box.

The early zither has only thirteen strings, and the thirteen strings are changed into twenty-one strings in the last 60 th century. The musical interval also increases from the original two and a half octaves to four octaves. And the resonance box is simply widened along with the increase of the number of the strings, and the internal structure and the structure are not changed.

The problems that the existing zither generally has are that: the timbre, the penetrating power and the volume of the high-tone area, especially the low-tone area are not good, and the due timbre, the penetrating power and the volume effect of the Chinese zither are not fully exerted. The specific expression is that the high pitch area is not bright, and the low pitch area is not thick and mellow. The main reason for this is that the current koto resonator can not satisfy the requirement of good resonance vibration from the high pitch zone to the low pitch zone, i.e. can not adapt to the resonance and vibration of wide frequency changes of the high pitch zone, the middle pitch zone and the low pitch zone at the same time. Further research shows that the factors influencing resonance and vibration in the resonance box are more, and besides the materials and the thickness of the panel and the bottom plate, the internal structure and the structure of the resonance box have larger influence. The existing ancient zither resonator is unreasonable in design and is not beneficial to the resonator to play good sound wave resonance and vibration from a high-pitch area to a low-pitch area.

In view of the above, it is a subject of the present invention to improve the resonator of the conventional zheng, especially to improve the internal structure and structure of the resonator.

Disclosure of Invention

The utility model provides a band-pass tunnel zither, its purpose is to solve the problem that current zither resonant tank can't compromise high, well, bass district and possess good sympathetic response tone quality, penetrating power and volume simultaneously.

In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a take sound tunnel zither, includes the resonant tank, and the box of this resonant tank is formed by panel, bottom plate and curb plate amalgamation, one end in the box sets up the nail board, and the other end sets up back shrouding, the space that panel, bottom plate, curb plate, nail board and back shrouding enclose is the resonance chamber, and its innovation lies in:

a first groove is formed in the inner wall of the panel corresponding to the resonance cavity and is formed in the width direction of the resonance box; a second groove is formed in the inner wall of the panel corresponding to the resonance cavity and is formed in the length direction of the resonance box; the first grooves and the second grooves are arranged on the inner wall of the panel in a crossed mode and are communicated with each other, wherein the first grooves form upper transverse sound tunnels on the inner wall of the panel, and the second grooves form upper longitudinal sound tunnels on the inner wall of the panel.

The relevant content in the above technical solution is explained as follows:

1. in the scheme, the theme is the Chinese zither, and innovation points are concentrated on a resonator of the Chinese zither, so that wild goose posts (some sections are also called as bridge codes), strings, a front mountain, string nails, tone tuning boxes, piano feet, a rear mountain, tone outlets, string penetrating holes and the like outside the resonator are not described. It can be considered that the other structures except the resonance box in the koto of the utility model are realized by adopting the prior art.

2. In the scheme, the resonance box is a body formed by splicing a panel, a bottom plate and side plates. The length direction of the resonator of the koto is a direction approximately in line with the strings, and the width direction of the resonator is a direction perpendicular to the length direction. The term "inner wall" refers to an inner wall surface of the resonator, for example, an inner wall surface of the faceplate refers to a wall surface closer to the inner side of the faceplate of the resonator, and an inner wall surface of the base plate refers to a wall surface closer to the inner side of the base plate of the resonator.

3. In the above scheme, a third groove may be provided on an inner wall of the bottom plate corresponding to the resonance cavity, and the third groove is provided along a width direction of the resonance box; a fourth groove is formed in the inner wall of the bottom plate corresponding to the resonance cavity, and the fourth groove is formed in the length direction of the resonance box; the third grooves and the fourth grooves are arranged on the inner wall of the bottom plate in a crossed mode and are communicated with each other, wherein the third grooves form a lower transverse sound tunnel on the inner wall of the bottom plate, and the fourth grooves form a lower longitudinal sound tunnel on the inner wall of the bottom plate.

4. In the above scheme, the length of the first groove is smaller than the length of the panel in the resonance cavity at the corresponding position of the first groove, and smooth transition surfaces are arranged between two ends of the first groove and the inner wall of the panel; the length of the second groove is smaller than that of the panel in the resonance cavity at the corresponding position of the second groove, and smooth transition surfaces are arranged between two ends of the second groove and the inner wall of the panel.

5. In the above scheme, the length of the third groove is smaller than the length of the bottom plate in the resonance cavity at the position corresponding to the third groove, and smooth transition surfaces are arranged between two ends of the third groove and the inner wall of the bottom plate; the length of the fourth groove is smaller than that of the corresponding position of the bottom plate in the resonance cavity, and smooth transition surfaces are arranged between two ends of the fourth groove and the inner wall of the bottom plate.

6. In the above scheme, the first groove, the second groove, the third groove and the fourth groove are all arc-shaped grooves.

The utility model relates to a principle and design are: in the case of a zheng, there are many factors that affect the timbre, penetration and volume of the zheng, such as the material, thickness and internal structure of the resonance box. The utility model discloses a solve present zither resonant tank and can't compromise the problem that high, well, bass district possess good sympathetic response tone quality, penetrating power and volume simultaneously, mainly follow the resonant tank, especially the angle of resonant chamber inner structure is set out and is carried out thorough improvement to it. The following measures are adopted: grooves (namely a first groove and a second groove) are formed in the inner wall of the panel in the resonance cavity, and an upper transverse sound tunnel and an upper longitudinal sound tunnel are formed in the inner wall of the panel by the grooves. The utility model discloses to current zither Gao Yinou bright not coming out, and the not enough problem of bass district perfectly round, to the resonant tank of zither, especially resonance chamber structure and sound production mechanism have carried out deep discussion and research, found out the tone quality of current zither high pitch area and bass district, the main reason that penetrating power and volume are not good because resonant tank, especially resonance chamber design is unreasonable to be sent, the sound wave can not produce good sympathetic response and vibration in the resonant chamber when leading to playing. In view of the above, the inventor has broken the constraint of traditional resonator (especially resonance chamber) design of zither in the past, and the bold has proposed the utility model discloses an improve design, solved zither Gao Yinou bright not out from the angle of vibration, sympathetic response, sound production, and bass district is muddy and mellow not enough problem, practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.

Due to the application of the above technical solution, compared with the existing koto resonator, the utility model has the following advantages and effects (best mode is the content of the embodiment of the utility model is illustrated):

1. the utility model discloses seted up "rich" font slot (being first slot and second slot) on the panel inner wall, this "rich" font slot has actually formed "rich" font sound tunnel on the inner wall of panel. Meanwhile, the inner wall of the bottom plate is provided with a 'feng' shaped groove (namely a third groove and a fourth groove), and the 'feng' shaped groove actually forms a 'feng' shaped sound tunnel on the inner wall of the bottom plate. Because the relative high pitch amplitude of bass is big, the frequency is low, the bass sympathetic response is concentrated on the central zone of resonant tank, the high pitch sympathetic response is concentrated on the peripheral edge region all around of resonant tank, the string vibration is collected by the alternately central zone of sound tunnel, and pass through upper and lower two "rich" style of calligraphy sound tunnels (the tunnel of sound promptly) and transmit around the resonant chamber rapidly, this tone quality, penetrating power and the volume to improving the high tone area have played the key role, the tone quality to improving the low tone area simultaneously, penetrating power and volume have also played the good effect.

2. First slot, second slot, third slot and fourth slot all adopt the arc wall, can be so that panel and bottom plate minimize thickness sudden change in thickness, influence the sympathetic response and the vibration of resonant tank.

The above advantages and effects are all explained in the best mode. It is particularly emphasized that the provision of grooves in the inner walls of the panels is of greater importance for the invention than the corresponding provision in the inner walls of the base plate, and is of relatively good function and effect. The reason is that the wild goose posts and the strings are arranged on the panel, and the bottom plate is not directly connected with the wild goose posts and the strings. It is therefore the key to solve the technical problem of the present invention to provide a groove on the inner wall of the panel, and it is the groove on the inner wall of the bottom plate that the present invention is more and more beautiful, which is easily understood by those skilled in the art.

Drawings

FIG. 1 is a front view of a conventional Zheng resonator;

fig. 2 is a top view of a conventional zheng resonator;

fig. 3 is a cross-sectional view of a conventional resonator for a zheng (musical instrument);

FIG. 4 is a view of the resonator tank of FIG. 3;

FIG. 5 is the resonator tone Liang Shitu of FIG. 3;

FIG. 6 is a left side view of FIG. 5;

fig. 7 is a schematic view of a main view structure of a zheng resonator according to an embodiment of the present invention;

fig. 8 is a front view of the inner wall of the faceplate of the koto resonator in accordance with the embodiment of the present invention;

fig. 9 is a front view of the inner wall of the bottom plate of the koto resonator according to the embodiment of the present invention;

fig. 10 is a cross-sectional view of a resonator of a zheng according to an embodiment of the present invention;

fig. 11 is a sectional view of the resonator tank of fig. 10;

fig. 12 is a front view of a transom beam of a zither in an embodiment of the present invention;

fig. 13 is a left side view of a transom beam of a zither in an embodiment of the present invention;

fig. 14 is a front view of a tuning-up beam of a zither in an embodiment of the present invention;

fig. 15 is a left view of the tuning-up beam of the zither in the embodiment of the present invention;

fig. 16 is a front view of a lower sound beam of a zheng according to an embodiment of the present invention;

fig. 17 is a left view of a lower sound beam of a zheng according to an embodiment of the present invention.

In the drawings above: 1. a panel; 2. a base plate; 3. a side plate; 4. nailing a plate; 5. a rear closing plate; 6. a sound-feeding beam; 7. a bottom sound beam; 8. a first trench; 9. a second trench; 10. a third trench; 11. a fourth trench; 12. putting the bridge opening; 13. a lower bridge opening; 16. a transom beam; 17. an upper reinforcing plate; 18. a lower reinforcing plate; 19. a first segment; 20. a first bud aperture; 21. a second segment; 22. a second orychophragmus violaceus hole; 23. a through hole; 24. and a sound beam.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): zheng with sound tunnel

The Guzheng comprises a resonance box, wild goose posts (also called bridge in some fields), strings, a front bridge, string nails, a tone tuning box, piano feet, a rear bridge, a tone outlet, string penetrating holes and the like. Because the utility model discloses an innovation all concentrates on the resonant tank, consequently this embodiment will focus on describing the structure and the structure of zither resonant tank, and wild goose post (also called the musical instrument sign indicating number in some districts), string, preceding mountain, peg, tuning box, musical instrument foot, back mountain, sound outlet, string hole isotructure can be considered to adopt prior art to realize, do not describe in detail in this embodiment again.

The structure and structure of the zither resonance box of the embodiment are as follows: as shown in fig. 7-17, the box body of the resonance box is formed by splicing a panel 1, a bottom plate 2 and a side plate 3 (see fig. 11), a nail plate 4 is arranged at one end in the box body, a rear sealing plate 5 is arranged at the other end (see fig. 7), and a space surrounded by the panel 1, the bottom plate 2, the side plate 3, the nail plate 4 and the rear sealing plate 5 is a resonance cavity (see fig. 7).

Two upper sound beams 6 and two lower sound beams 7 (see fig. 10) are provided in the resonance chamber, and the upper sound beams 6 and the lower sound beams 7 are both long sound beam members (see fig. 14 to 17). The upper sound beam 6 is provided with an upper bridge opening 12, the upper bridge opening 12 is a hole on one side of the upper sound beam 6, the upper sound beam 6 forms an upper bridge type sound beam structure (see fig. 14), and the upper bridge opening 12 is erected on the first groove 8 (see fig. 8). The lower sound beam 7 is provided with a lower bridge opening 13, the lower bridge opening 13 is a hole at one side of the lower sound beam 7 and enables the lower sound beam 7 to form a lower bridge type sound beam structure (see fig. 16), and the lower bridge opening 13 is erected on the third groove 10 (see fig. 9). One side of each of the two upper sound beams 6 is tightly fixed on the inner wall of the panel 1 (see fig. 10), the other side of each of the two upper sound beams 6 is suspended in the resonator relative to the bottom plate 2, the length direction of each of the two upper sound beams 6 is consistent with the length direction of the resonator, and the two upper sound beams 6 are parallel and separated by a certain distance when viewed in the width direction of the resonator (see fig. 8). One side of the two lower sound beams 7 is tightly fixed on the inner wall of the bottom plate 2 (see figure 10), the other side of the two lower sound beams 7 is suspended in the resonator relative to the panel 1, the length direction of the two lower sound beams 7 is consistent with the length direction of the resonator, and the two lower sound beams 7 are arranged in parallel and separated by a certain distance when viewed in the width direction of the resonator (see figure 9).

Three first grooves 8 (see fig. 8) are arranged on the inner wall of the panel 1 corresponding to the resonance cavity, the three first grooves 8 are all formed along the width direction of the resonance box, and the three first grooves 8 are arranged at intervals in the length direction of the resonance box. Meanwhile, a second groove 9 (see fig. 8) is provided on the inner wall of the panel 1 corresponding to the resonance chamber, the second groove 9 is formed along the length direction of the resonance box, and the second groove 9 is located at the central position in the width direction of the resonance box. The three first grooves 8 and the second groove 9 are in a shape like a Chinese character feng on the inner wall of the panel 1 and are communicated with each other, wherein the second groove 9 is positioned between the two upper sound beams 6, and the length direction of the second groove 9 is consistent with the length direction of the upper sound beams 6. Three first grooves 8 cross two upper sound beams 6 in the width direction of the resonance box, three upper transverse sound tunnels are formed on the inner wall of the panel 1, and a second groove 9 forms an upper longitudinal sound tunnel on the inner wall of the panel 1.

The length of the first groove 8 is less than the length of the panel 1 in the resonance cavity at the corresponding position of the first groove 8 (see fig. 8), and smooth transition surfaces are arranged between the two ends of the first groove 8 and the inner wall of the panel 1. The length of the second groove 9 is less than the length of the panel 1 in the resonance cavity at the corresponding position of the second groove 9 (see fig. 8), and smooth transition surfaces are arranged between the two ends of the second groove 9 and the inner wall of the panel 1.

Three third grooves 10 (see fig. 9) are arranged on the inner wall of the bottom plate 2 corresponding to the resonance cavity, the three third grooves 10 are all formed along the width direction of the resonance box, and the three third grooves 10 are arranged at intervals in the length direction of the resonance box. A fourth groove 11 (see fig. 9) is provided on the inner wall of the base plate 2 corresponding to the resonance chamber, the fourth groove 11 is formed along the length direction of the resonance box, and the fourth groove 11 is located at the center in the width direction of the resonance box. Three third grooves 10 and one fourth groove 11 are formed in the inner wall of the bottom plate 2 in a shape like a Chinese character feng and are communicated with each other (see fig. 9), wherein the fourth groove 11 is positioned between the two lower sound beams 7, and the length direction of the fourth groove 11 is consistent with the length direction of the lower sound beams 7. The three third grooves 10 transversely span the two lower sound beams 7 in the width direction of the resonance box, form three lower transverse sound tunnels on the inner wall of the bottom plate 2, and the fourth grooves 11 form a lower longitudinal sound tunnel on the inner wall of the bottom plate 2.

The length of the third groove 10 is less than the length of the bottom plate 2 in the resonance cavity at the position corresponding to the third groove 10 (see fig. 9), and smooth transition surfaces are arranged between the two ends of the third groove 10 and the inner wall of the bottom plate 2. The length of the fourth groove 11 is smaller than the length of the bottom plate 2 in the resonance cavity at the position corresponding to the fourth groove 11 (see fig. 9), and smooth transition surfaces are arranged between the two ends of the fourth groove 11 and the inner wall of the bottom plate 2.

The 'feng' shaped groove on the inner wall of the panel 1 corresponds to the 'feng' shaped groove on the inner wall of the bottom plate 2 in position in the height direction of the resonance box. Six positions of the three transverse left half parts and the three transverse right half parts in the V-shaped groove are respectively provided with a transverse sound beam 16 (see fig. 8), the six transverse sound beams 16 are all plate-shaped (see fig. 14 and 15), wherein the top of each transverse sound beam 16 is fixedly connected with the corresponding part of the panel 1, the bottom of each transverse sound beam 16 is fixedly connected with the corresponding part of the bottom plate 2, and the side part of each transverse sound beam 16 is fixedly connected with the corresponding part of the side plate 3 (see fig. 10). The transom beam 16 is arranged in the transverse direction of the resonance chamber, and a through hole 23 is opened in the center of the transom beam 16 (see fig. 12). The side of the transom beam 16 connected with the panel 1 and the side plate 3 is provided with a first round notch 19 (see fig. 12), and a first crescent hole 20 (see fig. 10) is formed between the first round notch 19 and the inner walls of the panel 1 and the side plate 3 in an assembled state. The connecting side of the transom beam 16 with the bottom plate 2 and the side plate 3 is provided with a second round notch 21 (see fig. 12), and a second bud hole 22 (see fig. 10) is formed between the second round notch 21 and the inner walls of the bottom plate 2 and the side plate 3 in an assembling state.

An upper reinforcing plate 17 (see fig. 8 and 10) is arranged between the two upper sound beams 6, and a lower reinforcing plate 18 (see fig. 9 and 10) is arranged between the two lower sound beams 7. The first groove 8, the second groove 9, the third groove 10 and the fourth groove 11 are all arc-shaped grooves.

Other embodiments and structural changes of the present invention are described below as follows:

1. in the above embodiment, the two upper sound beams 6 are juxtaposed in parallel as viewed in the width direction of the resonance box (see fig. 8). The two bottom beams 7 are parallel and parallel (see fig. 9). However, the present invention is not limited thereto, and the two upper sound beams 6 need not be parallel, and the two lower sound beams 7 need not be parallel, but the parallel arrangement is preferably, as will be understood and accepted by those skilled in the art.

2. In the above embodiments, the inner walls of the panel 1 and the bottom plate 2 are both provided with the dual-sound beam structure and are both provided with the grooves. However, the present invention is not limited to this, and the measures such as the beam and the groove that are adopted on the inner wall of the bottom plate 2 can be cancelled or changed into other structural forms, and it is feasible to only keep the technical measures that are set on the inner wall of the panel 1, and only the effect is slightly inferior. The panel 1 is more important than the sole plate 2 for a koto resonator. The reason is that the panel 1 is provided with the gooseneck and the strings, and the bottom plate 2 is not directly related to the gooseneck and the strings, as will be easily understood by those skilled in the art.

3. In the above embodiments, the dual sound beam structure is disposed on the inner walls of the panel 1 and the bottom plate 2. That is, two upper sound beams 6 are provided on the panel 1, and two lower sound beams 7 are provided on the bottom plate 2. However, the present invention is not limited to this, and the two beams 6 can be changed from the form to four beams 6 for parallel use. For the present invention, the four upper sound beams 6 and the two upper sound beams 6 are different in number and form, but are identical in nature. Assuming that two outer sound beams of the four upper sound beams 6 are close to two inner sound beams, the two outer sound beams can be equivalent to a double sound beam. It is therefore believed that such a change does not bring about an unexpected effect and should be understood to be substantially equivalent. Likewise, the dual tone beam structure on the base plate 2 should also include such variations. The utility model discloses well two sound roof beams include the meaning of even number sound roof beam symmetrical arrangement, therefore six sound roof beam symmetrical arrangement are also the utility model discloses equate the variation. As will be readily understood by those skilled in the art.

4. In the above embodiment, three first grooves 8 (see fig. 8) are formed on the inner wall of the panel 1, and three third grooves 10 (see fig. 9) are formed on the inner wall of the bottom plate 2. However, the present invention is not limited thereto, and the number of the first grooves 8 and the third grooves 10 may be one, two, four, or five. Such variations may be determined on an actual basis. The number of the first grooves 8 and the third grooves 10 is at least one in nature.

5. In the above embodiment, six transom beams 16 (see fig. 8) are provided. Wherein, six transom beams 16 are divided into three groups, and each two transom beams 16 are symmetrical left and right (see fig. 8) with the central plane of the second groove 9 as the reference, but the present invention is not limited thereto, and each two transom beams 16 can be combined into one transom beam 16 by mutual connection, which is easily understood and accepted by those skilled in the art.

6. In the above embodiment, the upper sound beam 6 is provided with the upper bridge opening 12, and the lower sound beam 7 is provided with the lower bridge opening 13. However, the present invention is not limited to this, and the upper bridge opening 12, the lower bridge opening 13, or even the bridge opening may be provided only on one of the upper sound beam 6 and the lower sound beam 7. As would be readily understood and accepted by those skilled in the art.

7. In the above embodiment, the upper reinforcing plate 17 (see fig. 10) is fixed between the two upper sound beams 6, and the lower reinforcing plate 18 (see fig. 10) is fixed between the two lower sound beams 7. However, the present invention is not limited to this, and the two upper sound beams 6 may be suspended in the resonator without providing the upper reinforcing plate 17. Similarly, the two lower sound beams 7 may be suspended in the resonance box without the lower reinforcing plate 18. The upper and lower reinforcing plates 17 and 18 can increase the strength of the middle regions of the front and rear panels, particularly between the upper and lower sound beams, and can increase the load when the two upper and lower sound beams resonate.

8. In the above embodiments, the first groove 8, the second groove 9, the third groove 10 and the fourth groove 11 are all arc-shaped grooves. However, the present invention is not limited thereto, and the groove may be designed into other shapes, such as a V-shape, a U-shape, a W-shape, and other concave structures. As would be readily understood and accepted by those skilled in the art.

9. In the above embodiment, the two lower sound beams 7 and the two upper sound beams 6 are arranged in correspondence with each other in the up-down direction as viewed from the cross section of the resonance box (see fig. 10). However, the present invention is not limited to this, and the alignment arrangement may be performed in a non-aligned manner, but the alignment arrangement is most effective. As would be readily understood and accepted by those skilled in the art.

10. In the above embodiment, the two upper sound beams 6 are the same in shape and size (see fig. 14). The two bottom sound beams 7 are identical in shape and size (see fig. 16). However, the present invention is not limited to this, and the shape and the size of the two upper sound beams 6 may not be the same, and the shape and the size of the two lower sound beams 7 may not be the same. The sound quality can be determined according to the tone color and tone quality of the resonance box. As would be readily understood and accepted by those skilled in the art.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. The utility model provides a take sound tunnel zither, includes the resonant tank, and the box of this resonant tank is formed by panel (1), bottom plate (2) and curb plate (3) amalgamation, one end in the box sets up nail board (4), and the other end sets up back shrouding (5), the space that panel (1), bottom plate (2), curb plate (3), nail board (4) and back shrouding (5) enclose is resonance chamber, its characterized in that:

a first groove (8) is formed in the inner wall of the panel (1) corresponding to the resonance cavity, and the first groove (8) is formed in the width direction of the resonance box; a second groove (9) is formed in the inner wall of the panel (1) corresponding to the resonance cavity, and the second groove (9) is formed in the length direction of the resonance box; the first groove (8) and the second groove (9) are arranged on the inner wall of the panel (1) in a crossed mode and are communicated with each other, wherein the first groove (8) forms an upper transverse sound tunnel on the inner wall of the panel (1), and the second groove (9) forms an upper longitudinal sound tunnel on the inner wall of the panel (1).

2. The zither of claim 1, wherein: a third groove (10) is arranged on the inner wall of the bottom plate (2) corresponding to the resonance cavity, and the third groove (10) is formed along the width direction of the resonance box; a fourth groove (11) is formed in the inner wall of the bottom plate (2) corresponding to the resonance cavity, and the fourth groove (11) is formed in the length direction of the resonance box; the third grooves (10) and the fourth grooves (11) are arranged on the inner wall of the bottom plate (2) in a crossed mode and are communicated with each other, wherein the third grooves (10) form a lower transverse sound tunnel on the inner wall of the bottom plate (2), and the fourth grooves (11) form a lower longitudinal sound tunnel on the inner wall of the bottom plate (2).

3. The zither of claim 1, wherein: the length of the first groove (8) is smaller than that of the panel (1) in the resonance cavity at the corresponding position of the first groove (8), and smooth transition surfaces are arranged between the two ends of the first groove (8) and the inner wall of the panel (1); the length of the second groove (9) is smaller than that of the panel (1) in the resonance cavity at the corresponding position of the second groove (9), and smooth transition surfaces are arranged between two ends of the second groove (9) and the inner wall of the panel (1).

4. The zither of claim 2, wherein: the length of the third groove (10) is smaller than that of the bottom plate (2) in the resonance cavity at the position corresponding to the third groove (10), and smooth transition surfaces are arranged between two ends of the third groove (10) and the inner wall of the bottom plate (2); the length of the fourth groove (11) is smaller than that of the corresponding position of the bottom plate (2) in the resonance cavity in the fourth groove (11), and smooth transition surfaces are arranged between two ends of the fourth groove (11) and the inner wall of the bottom plate (2).

5. The zither of claim 2, wherein: the first groove (8), the second groove (9), the third groove (10) and the fourth groove (11) are all arc-shaped grooves.

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