CN218602086U - Langqin with sound - Google Patents

Abstract

The utility model provides a band sound tunnel willow musical instrument, includes the resonant tank, and the box of this resonant tank is formed by panel and bottom plate amalgamation, its characterized in that: a transverse groove and a longitudinal groove are formed in the inner wall of the panel, and the transverse groove and the longitudinal groove are communicated with each other to form a transverse sound tunnel and a longitudinal sound tunnel. The scheme breaks through the constraint of the traditional design of the internal structure of the willow organ resonance box, a new improved design scheme is provided by the container, the problem that the traditional willow organ cannot give consideration to both high, middle and low sound zones and has good resonance tone and penetrating power is solved, the penetrating power (attenuation is small and transmission is far) of the willow organ sound is greatly enhanced, the high sound zone is bright and rigid, the middle sound zone is soft and moist, and the low sound zone is relatively pure and thick in tone quality.

Description

Channel-equipped lyre

Technical Field

The utility model relates to a chinese tradition plucked musical instrument, in particular to a tunnel willow musical instrument with sound.

Background

The Liuqin, also known as Liuye qin, buddha's warrior attendant legs and native lute, is a traditional plucked instrument in China. The original prevalence is in Su, lu, wan provinces. The current popularity is around the country, mainly in Shandong near Yi and Subei. Belongs to one of the pear-shaped sound box stringed instruments which are popular in folks since the Tang Dynasty, and the appearance, the structure and the playing method of the instrument are all Ruan Xiangshi.

Nowadays, harp plays a variety of roles in the field of chinese musical performance. In national bands, the Liuqin is a high-pitched musical instrument of a plucked instrument set, has unique sound effect and often plays an important main melody in a high-pitched area. It is not easy to be covered and fused by other instruments, and it is also used for playing Chinese passages with high skill. In addition, the Liuqin also has the sound effect of a western musical instrument mandolin, and is peculiar in flavor when cooperating with a western band.

The Liuqin is composed of a headstock, a lyre shaft, a panel, a sound window, a top opening, a lyre product, a lyre code, a fine adjustment, a bottom plate (a back plate) and the like. The fixed string of the Liuqin is generally a fixed string method with fixed pitch, namely a string, also called a sub-string, and the fixed pitch is two groups of small characters d; two strings, also called middle string, the timbre is g of a small character group; three strings, also called inner string, the pitch is d of a small character group; four strings, also called string winding, are the timbre g of the small character group. The Liuqin is small and exquisite in style, bright in tone color and wide in range, and is originally made of the Maoyang wood at the lower end of a willow and shaped like a willow leaf, so that people are called the Liuqin or the Liuye Qin.

The defects of the prior willow organ are as follows: compared with the middle tone region, the tone colors of the high tone region and the low tone region need to be improved, the high tone region cannot be lightened, the low tone region is not perfectly round, and the penetrating power of the piano sound needs to be further improved. The main reason for this is that the current resonance box of the harp cannot meet the requirement of good resonance vibration from the high-pitch area to the low-pitch area, i.e. cannot simultaneously adapt to the resonance and vibration of wide frequency changes of the high-pitch area, the middle-pitch area and the low-pitch area. 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 resonance box of the lyre is unreasonable in design and is not beneficial to the resonance box to play good sound wave resonance and vibration from a high-pitch area to a low-pitch area.

In view of the above, the present invention is to improve the resonator of the existing harp, and particularly to improve the internal structure and structure of the resonator.

Disclosure of Invention

The utility model provides a channel willow musical instrument of voiced sound, its purpose is to solve current willow musical instrument resonant tank and can't compromise the problem that high, well, bass district possess good resonance tone color and penetrating power simultaneously.

In order to achieve the above purpose, the utility model adopts the technical scheme that: take sound tunnel willow musical instrument, including the resonant tank, the box of this resonant tank is formed by panel and bottom plate amalgamation, and its innovation lies in:

a first groove is formed in the inner wall of the panel of the resonator and is formed in the width direction of the resonator; a second groove is formed in the inner wall of the panel of the resonator and is formed in the length direction of the resonator; 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 an upper transverse sound tunnel on the inner wall of the panel, and the second grooves form an upper longitudinal sound tunnel 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 'lyre', and innovation points are focused on 'a resonance box' of the lyre, so that other structures and structures except the resonance box are not described. The other structures except the resonance box in the willow organ of the utility model can be realized by adopting the prior art.

2. In the above scheme, the "resonance box" refers to a sound box formed by splicing a front panel and a bottom plate (back plate). The length direction of the willow resonator is the direction approximately consistent with the strings, and the width direction of the resonator is the direction vertical to the length direction. The "inner wall" refers to an inner wall surface of the resonance box, for example, the inner wall surface of the faceplate refers to a wall surface close to the inner side of the faceplate of the resonance box, and the inner wall surface of the soleplate refers to a wall surface close to the inner side of the soleplate of the resonance box.

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

4. In the scheme, the length of the first groove is smaller than that of the panel in the resonator 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 resonator 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 box at the corresponding position of the third groove, and smooth transition surfaces are arranged between the 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 bottom plate in the resonance box at the corresponding position of the fourth groove, 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 sound post is arranged at the crossing position of the first groove and the second groove, the sound post is of a supporting column structure, one end of the sound post is supported on the panel, and the other end of the sound post is supported on the bottom plate.

7. 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 Liuqin, factors influencing the timbre and the penetrating power of the Liuqin are many, such as the material, thickness and internal structure of a resonance box. The utility model discloses a solve present willow organ resonant tank and can't compromise the problem that high, well, bass district possess good resonance tone and penetrating power simultaneously, mainly set out from the angle of resonance intracavity internal structure and carried out thorough improvement to it. The following measures are specifically 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 willow musical instrument Gao Yinou bright not coming out, and the not enough problem of low sound zone perfectly, to the resonant tank of willow musical instrument, especially resonance chamber structure and sound production mechanism have carried out deep discussion and research, found out the tone quality and the not good leading cause of penetrating power in current willow musical instrument high sound zone and low sound zone because the 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. Therefore, the inventor has broken the constraint of the traditional resonance box (especially resonance chamber) design of the willow in the past, and has provided the utility model discloses an improved design scheme has solved the problem that the high-pitched region of willow can not be bright from the angle of transmission, vibration, sympathetic response, sound production of sound wave, and the bass region is muddy and mellow and not enough, and practice proves that this improved design scheme has outstanding substantive characteristics and apparent technological progress, makes the penetrating power (the decay is little, passes far away) of willow sound strengthen greatly, and the high-pitched region is bright and rich in rigidity, and the midtone region is soft and has moist sound, and bass region tone quality is more pure and thick.

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 slot (first slot and second slot promptly) on the panel inner wall, this slot link up each other on the inner wall of panel and actually formed vertical sound tunnel and horizontal sound tunnel. The sound tunnels form a sound wave transmission tunnel in the resonance cavity, bass is large in amplitude and low in frequency relative to treble, bass resonance is concentrated in the central area of the resonance box, treble resonance is concentrated in the peripheral area of the resonance box, when string vibration is collected by the central area and is rapidly transmitted to the periphery of the resonance cavity through the sound tunnels (namely the sound tunnels), and therefore the sound tunnel plays a key role in improving the tone quality and the penetrating power of a high-tone area, and plays a good role in improving the tone quality and the penetrating power of a low-tone area.

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 an optimum manner. 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 strings are arranged on the panel, and the bottom plate is not directly connected with 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 Liuqin;

FIG. 2 is a left side view of a conventional Liuqin;

FIG. 3 isbase:Sub>A sectional view A-A of FIG. 1;

fig. 4 is a schematic view of the major structure of the liuqin according to embodiment 1 of the present invention;

fig. 5 is a left side view of the liuqin according to embodiment 1 of the present invention;

FIG. 6 is a cross-sectional view B-B of FIG. 4;

FIG. 7 is a cross-sectional view of the resonator tank of FIG. 6;

FIG. 8 is a cross-sectional view C-C of FIG. 4;

fig. 9 is a schematic view of a major structure of a lyre in embodiment 2 of the present invention;

fig. 10 is a left side view of the liuqin according to embodiment 2 of the present invention;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 9;

fig. 12 is a sectional view of the resonator tank of fig. 11;

FIG. 13 is a cross-sectional view E-E of FIG. 9;

fig. 14 is a front view of a sound beam in embodiments 1 and 2 of the present invention;

fig. 15 is a left side view of the upper sound beam in embodiments 1 and 2 of the present invention;

fig. 16 is a front view of a woofer in embodiment 2 of the present invention;

fig. 17 is a left view of a woofer in embodiment 2 of the present invention;

fig. 18 is a front view of a first transom beam in embodiments 1 and 2 of the present invention;

fig. 19 is a left side view of a first transom beam in embodiments 1 and 2 of the present invention;

fig. 20 is a front view of a second transom beam according to embodiments 1 and 2 of the present invention;

fig. 21 is a left side view of a second transom beam in embodiments 1 and 2 of the present invention.

In the above drawings: 1. a panel; 2. a base plate; 3. a sound beam; 4. a splayed beam; 5. a sound post; 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; 14. a sound outlet hole; 15. a first transom beam; 16. a second 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 first through hole; 24. a second via.

Detailed Description

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

example 1: willow organ with sound tunnel (Single-side double sound beam structure)

Because the innovation of the utility model is concentrated on the resonator, the structure and the structure of the willow organ resonator will be described in this embodiment, and other structures related to the willow organ can be considered to be realized by adopting the prior art, and detailed description is not provided in this embodiment.

The structure and the structure of the willow organ resonance box of the embodiment are as follows: as shown in fig. 4 to 8, 14, 15, 18 to 21, the cabinet of the resonance box is formed by splicing a face plate 1 and a base plate 2 (see fig. 5 to 8).

Two upper sound beams 6 (see fig. 4 and 6) are arranged in the resonance box, the upper sound beams 6 are long-strip-shaped sound beam components (see fig. 14 and 15), one sides of the two upper sound beams 6 are tightly fixed on the inner wall of the panel 1, the other sides of the two upper sound beams 6 are suspended in the resonance box relative to the bottom plate 2 (see fig. 6), the length directions of the two upper sound beams 6 are consistent with the length direction of the resonance box (see fig. 4), and the two upper sound beams 6 are parallel and are separated by a certain distance when being seen in the width direction of the resonance box (see fig. 6). The upper sound beam 6 is provided with an upper bridge opening 12 (see fig. 14), the upper bridge opening 12 is a hole on one side of the upper sound beam 6 and enables the upper sound beam 6 to form an upper bridge type sound beam structure, and the upper bridge opening 12 is erected on the first groove 8.

Two first grooves 8 (see fig. 4) are arranged on the inner wall of the panel 1 of the resonance box, the two first grooves 8 are both arranged along the width direction of the resonance box, and the two first grooves 8 are arranged at intervals in the length direction of the resonance box. A second groove 9 (see fig. 4) is provided on the inner wall of the panel 1 of the resonance box, the second groove 9 is opened along the length direction of the resonance box, and the second groove 9 is located at the center in the width direction of the resonance box. Two first grooves 8 and one second groove 9 intersect and penetrate each other on the inner wall of the panel 1 (see fig. 7), wherein the second groove 9 is located at a position between the two upper sound beams 6, and the length direction of the second groove 9 is identical to the length direction of the upper sound beams 6. The two first grooves 8 cross the two upper sound beams 6 in the width direction of the resonance box and form two upper transverse sound tunnels (see fig. 4) on the inner wall of the panel 1, and the second grooves 9 form an upper longitudinal sound tunnel (see fig. 4) 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 box at the corresponding position of the first groove 8 (see fig. 4), 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 box at the corresponding position of the second groove 9 (see fig. 4), and smooth transition surfaces are arranged between the two ends of the second groove 9 and the inner wall of the panel 1.

A first transom beam 15 and a second transom beam 16 (see fig. 4) are arranged in the resonance box, the first transom beam 15 and the second transom beam 16 are both in a plate shape, wherein the two first transom beams 15 are arranged at the position of one first groove 8 and are bilaterally symmetrical with the center plane of the second groove 9 as a reference (see fig. 4), the top of each first transom beam 15 is fixedly connected with the panel 1, and the bottom of each first transom beam 15 is fixedly connected with the bottom plate 2 (see fig. 6). Two second transom beams 16 are arranged at the position of the other first groove 8 and are in bilateral symmetry with the center plane of the second groove 9 as a reference (see fig. 4), the top of each second transom beam 16 is fixedly connected with the panel 1, and the bottom of each second transom beam 16 is fixedly connected with the bottom plate 2 (see fig. 8). The first transom beam 15 and the second transom beam 16 are both arranged in the horizontal direction in the resonance box, and a first through hole 23 is formed in the center of the first transom beam 15 (see fig. 18). A second through hole 24 (see fig. 20) is opened in the center of the second transom beam 16. The first transom beam 15 is provided with a first round notch 19 (see fig. 18) at the connecting side of the panel 1 and the bottom plate 2, and a first crescent hole 20 (see fig. 6) is formed between the first round notch 19 and the inner walls of the panel 1 and the bottom plate 2 in an assembling state. A second round notch 21 (see fig. 20) is arranged on the connecting side of the second transom beam 16 with the panel 1 and the bottom plate 2, and a second bud hole 22 (see fig. 8) is formed between the second round notch 21 and the inner walls of the panel 1 and the bottom plate 2 in an assembling state.

An upper reinforcing plate 17 (see fig. 6) is arranged between the two upper sound beams 6, a sound post 5 (see fig. 4) is arranged at the position where the first groove 8 and the second groove 9 are crossed, the sound post 5 is of a supporting column structure, one end of the sound post 5 is supported on the panel 1, and the other end of the sound post is supported on the bottom plate 2 (see fig. 6). The first grooves 8 and the second grooves 9 are both arc-shaped grooves (see fig. 7).

Example 2: willow organ with sound tunnel (double-face double-sound beam structure)

Example 2 differs from example 1 in that: the base plate 2 of embodiment 1 is a thick plate and the inner wall of the base plate 2 is not provided with the beam and groove structure, while the base plate of embodiment 2 is a thin plate and the inner wall of the base plate 2 is provided with the beam and groove structure. The specific contents are as follows:

as shown in fig. 9 to 13, 16, and 17, two bottom sound beams 7 (see fig. 10 and 11) are provided in the resonator, the bottom sound beams 7 are elongated sound beam members (see fig. 16 and 17), one sides of the two bottom sound beams 7 are closely fixed to the inner wall of the base plate 2, the other sides of the two bottom sound beams 7 are suspended in the resonator with respect to the panel 1 (see fig. 11), the longitudinal directions of the two bottom sound beams 7 are aligned with the longitudinal direction of the resonator (see fig. 10), and the two bottom sound beams 7 are parallel to each other and spaced apart from each other in the width direction of the resonator (see fig. 11). The lower sound beam 7 is provided with a lower bridge opening 13 (see fig. 16), 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, and the lower bridge opening 13 is erected on the third groove 10.

Two third grooves 10 (see fig. 10) are arranged on the inner wall of the bottom plate 2 of the resonance box, the two third grooves 10 are both arranged along the width direction of the resonance box, and the two third grooves 10 are arranged at intervals in the length direction of the resonance box. A fourth groove 11 (see fig. 12) is provided on the inner wall of the bottom plate 2 of the resonance box, 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. Two third grooves 10 and one fourth groove 11 intersect on the inner wall of the bottom plate 2 and are mutually communicated, wherein the fourth groove 11 is positioned between the two bottom sound beams 7 (see fig. 11), and the length direction of the fourth groove 11 is consistent with the length direction of the bottom sound beams 7. The two third grooves 10 transversely span the two lower sound beams 7 in the width direction of the resonance box, form two lower transverse sound tunnels on the inner wall of the bottom plate 2, and the fourth grooves 11 form lower longitudinal sound tunnels 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 box at the position corresponding to the third groove 10, 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 less than the length of the bottom plate 2 in the resonance box at the position corresponding to the fourth groove 11, and smooth transition surfaces are arranged between the two ends of the fourth groove 11 and the inner wall of the bottom plate 2.

A lower reinforcing plate 18 is arranged between the two lower sound beams 7 in a fixed frame mode (see figure 11). The third groove 10 and the fourth groove 11 are both arc-shaped grooves.

The rest of embodiment 2 is the same as embodiment 1, and the description thereof will not be repeated.

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. 6). The two bottom sound beams 7 are parallel and parallel (see fig. 11). 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 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. Similarly, the structure of the dual tone beam 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.

3. In the above embodiment, two first grooves 8 (see fig. 4) are formed on the inner wall of the panel 1, and two third grooves 10 (see fig. 10) 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, three, 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.

4. In the above embodiment, two first transom beams 15 and two second transom beams 16 (see fig. 4 and 9) are provided. The two first transom beams 15 and the two second transom beams 16 are both symmetrical left and right with respect to the center plane of the second groove 9 (see fig. 4 and 9) but the present invention is not limited thereto, and the two first transom beams 15 may be combined into one first transom beam 15 by being connected to each other, and the two second transom beams 16 may be combined into one second transom beam 16 by being connected to each other, which is easily understood and accepted by those skilled in the art.

5. 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.

6. In the above embodiment, the upper reinforcing plate 17 (see fig. 6) is fixed between the two upper sound beams 6, and the lower reinforcing plate 18 (see fig. 11) 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.

7. 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.

8. In the above embodiment 2, the two lower sound beams 7 and the two upper sound beams 6 are arranged in correspondence with each other in the vertical direction as viewed from the cross section of the resonance box (see fig. 11). 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.

9. 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 (6)

1. Take sound tunnel willow musical instrument, including the resonant tank, the box of this resonant tank is formed by panel (1) and bottom plate (2) amalgamation, its characterized in that:

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

2. The liuqin of claim 1, wherein: a third groove (10) is formed in the inner wall of the bottom plate (2) of the resonator, and the third groove (10) is formed in the width direction of the resonator; a fourth groove (11) is formed in the inner wall of the bottom plate (2) of the resonance box, 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 liuqin of claim 1, wherein: the length of the first groove (8) is smaller than that of the panel (1) in the resonance box 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 resonator 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 harp of claim 2, wherein: the length of the third groove (10) is smaller than that of the bottom plate (2) in the resonance box 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 less than that of the corresponding position of the bottom plate (2) in the resonance box in the fourth groove (11), and smooth transition surfaces are arranged between the two ends of the fourth groove (11) and the inner wall of the bottom plate (2).

5. The liuqin of claim 1, wherein: the sound column (5) is arranged at the crossed position of the first groove (8) and the second groove (9), the sound column (5) is of a supporting column structure, one end of the sound column (5) is supported on the panel (1), and the other end of the sound column is supported on the bottom plate (2).

6. The harp 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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