CN213070581U

CN213070581U - Double-sound beam ten-string musical instrument

Info

Publication number: CN213070581U
Application number: CN202021678760.5U
Authority: CN
Inventors: 金海鸥; 吴念博; 何新喜; 朱信智; 李碧英; 杨萍
Original assignee: Suzhou Liyue Musical Instrument Co Ltd
Current assignee: Suzhou Liyue Musical Instrument Co Ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-27
Anticipated expiration: 2030-08-13

Abstract

The utility model provides a ten string musical instruments on two sound roof beams, includes the resonant tank, and the box of this resonant tank is formed by panel, bottom plate and curb plate amalgamation, is equipped with the intermediate lamella in the box, and the intermediate lamella becomes the first resonance chamber that is located upper portion and the second resonance chamber that is located the lower part with box inner space division, its characterized in that: the double-sound beams are fixedly arranged on the inner wall of the panel, the upper and lower side wall surfaces of the middle plate and the inner wall of the bottom plate in parallel; transverse and longitudinal grooves are formed in the inner wall of the panel, the upper and lower side wall surfaces of the middle plate and the inner wall of the bottom plate to form a sound tunnel; and transverse sound beams are transversely arranged in the first resonance cavity and the second resonance cavity. The scheme solves the problems that a high pitch area cannot be bright when the conventional ten-string instrument is played, a low pitch area is not perfectly round and smooth, and instrument sound penetrating power is not strong.

Description

Double-sound beam ten-string musical instrument

Technical Field

The utility model relates to a plucked musical instrument, in particular to a two-tone beam ten string musical instrument.

Background

The ten-string musical instrument is made of wood, and is hacked and carved. The musical instrument body is divided into a sound box (a resonance box) and a tail board. The sound box (resonator) is close to a cuboid, the movable bottom plate is grounded, the sound box (resonator) is hollow, two holes are formed in the bottom surface of the sound box (resonator) and communicated with the sound box, ten string holes are formed in the head end of the sound box, and string traces are reserved in the Yueshan. The long arc tail plate is slightly upwarped and suspended, the tail end also has a snare mark, and the lower part of the plate has a peg string shaft. The piano surface is raised, the string lines are engraved in the shade, the whole body is coated with black lacquer, the luster is soft and smooth, and the piano surface is plain.

The ten-string instrument is a series of ancient plucked instruments and is divided into three types, namely a Chinese instrument, a secondary large instrument and a large instrument, wherein the Chinese instrument is ten strings, and the range of the musical instruments is five octaves; the secondary large organ has fifteen strings and a range of six octaves; the large musical instrument has twenty strings and a musical range of seven octaves.

The ten-stringed instrument string has the following problems: the tone colors of the high tone area and the low tone area are not good, the specific expression is that the high tone area can not be brightened, the low tone area is not perfectly round, the penetrating power of the sound of the ten-string instrument is not strong, and the sound needs to be further improved. The main reason for this is that the ten-string resonator cannot meet the requirement of good resonance vibration from the high-pitched area to the low-pitched area, i.e. cannot simultaneously adapt to the resonance and vibration of wide frequency changes of the high-pitched area, the middle-pitched area and the low-pitched 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 conventional resonance box of the ten-string instrument is not favorable for exerting good sound wave resonance and vibration from a high-pitch area to a low-pitch area due to unreasonable design.

In view of the above, it is a subject of the present invention to improve the resonator of the existing ten-stringed instruments, especially to improve the internal structure and structure of the resonator.

Disclosure of Invention

The utility model provides a ten string musical instruments on two sound roof beams, its purpose is to solve current ten string musical instrument resonant tanks 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: a double-sound-beam ten-string instrument comprises a resonance box, wherein a box body of the resonance box is formed by splicing a panel, a bottom plate and side plates, the bottom plate is formed by connecting a front bottom plate and a rear bottom plate in a staggered manner in the height direction of the box body, and the front bottom plate is lower than the rear bottom plate in the height direction of the box body; the middle plate is arranged in the box body and is positioned at a position corresponding to the front bottom plate in the front and back directions of the box body, and the internal space of the box body between the front bottom plate and the panel is divided into a first resonance cavity positioned at the upper part and a second resonance cavity positioned at the lower part, wherein the first resonance cavity is formed by the space between the middle plate and the panel and the space between the rear bottom plate and the panel, and the second resonance cavity is formed by the space between the middle plate and the front bottom plate; be equipped with first sound hole on the intermediate lamella, first resonance chamber communicates through first sound hole with second resonance chamber, and its innovation lies in:

two first upper sound beams are arranged in the first resonance cavity, the first upper sound beams are strip-shaped sound beam components, one sides of the two first upper sound beams are tightly attached and fixed on the inner wall of the panel, the other sides of the two first upper sound beams are suspended in the first resonance cavity, the length direction of the two first upper sound beams is consistent with the length direction of the resonance box, and the two first upper sound beams are parallel in the width direction of the resonance box and are separated by a certain distance.

A first groove is formed in the inner wall of the panel corresponding to the first 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 first 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, the second grooves are located between the two first upper sound beams, and the length direction of the second grooves is consistent with that of the first upper sound beams; two first sound roof beams of going up are gone up to first slot transversely in the width direction of resonant tank to horizontal sound tunnel is formed on the inner wall of panel, and vertical sound tunnel is formed on the inner wall of panel to the second slot.

Two second upper sound beams are arranged in the second resonance cavity, the second upper sound beams are long-strip-shaped sound beam components, one sides of the two second upper sound beams are tightly attached and fixed to the lower side wall surface of the middle plate, the other sides of the two second upper sound beams are suspended in the second resonance cavity, the length direction of the two second upper sound beams is consistent with the length direction of the resonance box, and the two second upper sound beams are parallel to each other in the width direction of the resonance box and are separated by a certain distance.

And a third groove and a fourth groove are arranged on the lower side wall surface of the middle plate corresponding to the second resonance cavity, wherein the third groove is formed along the width direction of the resonator, the fourth groove is formed along the length direction of the resonator, the third groove and the fourth groove are arranged on the lower side wall surface of the middle plate in a crossed manner and are communicated with each other, the fourth groove is positioned between the two second upper sound beams, the length direction of the fourth groove is consistent with the length direction of the second upper sound beams, the third groove crosses the two second upper sound beams in the width direction of the resonator, an upper transverse sound tunnel is formed on the lower side wall surface of the middle plate, and an upper longitudinal sound tunnel is formed on the lower side wall surface of the middle plate by the fourth groove.

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

1. in the scheme, the theme is 'ten-string instrument', and the innovation point is concentrated on the 'resonance box' of the ten-string instrument, so that other structures except the resonance box are not described. It can be considered that the utility model discloses other structures except the resonance box in the ten string musical instruments adopt original ten string musical instruments technique to realize.

2. In the above scheme, the "resonance box" refers to a body formed by splicing a panel, a bottom plate and side plates. The length direction of the ten-stringed instrument resonator is a direction approximately coincident with the strings, and the width direction of the resonator is a direction perpendicular to the length direction. The term "inner wall" refers to the inner wall of the resonator, for example, the inner wall of the faceplate refers to the wall surface closer to the inner side of the resonator faceplate, and the inner walls of the front and rear floors refer to the wall surfaces closer to the inner sides of the front and rear floors of the resonator.

3. In the above-described aspect, two first muffling beams may be provided in the first resonance chamber, the first muffling beams may be elongated sound beam members, one side of each of the two first muffling beams may be fixed to the upper side wall surface of the intermediate plate in close contact therewith, the other side of each of the two first muffling beams may be suspended in the first resonance chamber with respect to the panel, the longitudinal direction of each of the two first muffling beams may be aligned with the longitudinal direction of the resonance box, and the two first muffling beams may be arranged in parallel and spaced apart from each other by a distance when viewed in the width direction of the resonance box.

And a fifth groove and a sixth groove are arranged on the upper side wall surface of the middle plate corresponding to the first resonance cavity, wherein the fifth groove is formed along the width direction of the resonator, the sixth groove is formed along the length direction of the resonator, the fifth groove and the sixth groove are arranged on the upper side wall surface of the middle plate in a crossed manner and are communicated with each other, the sixth groove is positioned between the two first downnotes beams, the length direction of the sixth groove is consistent with the length direction of the first downnotes beams, the fifth groove spans the two first downnotes beams in the width direction of the resonator, a lower transverse sound tunnel is formed on the upper side wall surface of the middle plate, and a lower longitudinal sound tunnel is formed on the upper side wall surface of the middle plate by the sixth groove.

Two second lower sound beams are arranged in the first resonance cavity, the second lower sound beams are long-strip-shaped sound beam components, one sides of the two second lower sound beams are tightly attached and fixed on the inner wall of the rear bottom plate, the other sides of the two second lower sound beams are suspended in the first resonance cavity relative to the panel, the length direction of the two second lower sound beams is consistent with the length direction of the resonance box, and the two second lower sound beams are parallel and separated by a certain distance when viewed in the width direction of the resonance box.

The inner wall of the rear bottom plate corresponding to the first resonance cavity is provided with a seventh groove and an eighth groove, wherein the seventh groove is formed along the width direction of the resonance box, the eighth groove is formed along the length direction of the resonance box, the seventh groove and the eighth groove are arranged on the inner wall of the rear bottom plate in a crossed manner and are communicated with each other, the eighth groove is positioned between the two second lower sound beams, the length direction of the eighth groove is consistent with the length direction of the second lower sound beams, the seventh groove spans the two second lower sound beams in the width direction of the resonance box, a lower transverse sound tunnel is formed on the inner wall of the rear bottom plate, and a lower longitudinal sound tunnel is formed on the inner wall of the rear bottom plate by the eighth groove.

Two third lower sound beams are arranged in the second resonance cavity, the third lower sound beams are long-strip-shaped sound beam components, one sides of the two third lower sound beams are tightly attached and fixed to the inner wall of the front base plate, the other sides of the two third lower sound beams are suspended in the second resonance cavity, the length direction of the two third lower sound beams is consistent with the length direction of the resonance box, and the two third lower sound beams are parallel to each other in the width direction of the resonance box and are separated by a distance.

The inner wall of the front bottom plate corresponding to the second resonance cavity is provided with a ninth groove and a tenth groove, wherein the ninth groove is formed along the width direction of the resonator, the tenth groove is formed along the length direction of the resonator, the ninth groove and the tenth groove are arranged on the inner wall of the front bottom plate in a crossed manner and are communicated with each other, the tenth groove is positioned between the two third downnote beams, the length direction of the tenth groove is consistent with the length direction of the third downnote beams, the ninth groove spans the two third downnote beams in the width direction of the resonator, a lower transverse sound tunnel is formed on the inner wall of the front bottom plate, and a lower longitudinal sound tunnel is formed on the inner wall of the front bottom plate by the tenth groove.

4. In the above scheme, a large beam may be disposed in the first resonance cavity, and the large beam is in the form of a plate, wherein the large beam is supported between the panel and the middle plate and fixed at the position of the first groove; the large transom beam is bilaterally symmetrical by taking the central plane of the second groove as a reference, wherein the top of the large transom beam is fixedly connected with the panel, the bottom of the large transom beam is fixedly connected with the middle plate, and the side part of the large transom beam is fixedly connected with the side plate of the corresponding side.

A small transverse sound beam is arranged in the second resonance cavity, is in a plate shape, supports between the middle plate and the front bottom plate, and is fixed on a third groove; the small transom beam is bilaterally symmetrical by taking the center plane of the fourth groove as a reference, wherein the top of the small transom beam is fixedly connected with the middle plate, the bottom of the small transom beam is fixedly connected with the front bottom plate, and the side part of the small transom beam is fixedly connected with the side plate on the corresponding side.

5. In the above scheme, a first upper bridge opening may be provided on the first upper sound beam, the first upper bridge opening is a gap at one side of the first upper sound beam and makes the first upper sound beam form an upper bridge type sound beam structure, and the first upper bridge opening is erected on the first groove. A second upper bridge opening can be arranged on the second upper sound beam, the second upper bridge opening is a hole gap on one side of the second upper sound beam and enables the second upper sound beam to form an upper bridge type sound beam structure, and the second upper bridge opening is erected on the third groove. The first lower tuning beam may be provided with a first lower bridge opening, the first lower bridge opening may be a hole on one side of the first lower tuning beam and may form a lower bridge type tuning beam structure, and the first lower bridge opening may be erected on the fifth groove. A second lower bridge opening can be arranged on the second lower sound beam, the second lower bridge opening is a hole gap on one side of the second lower sound beam and enables the second lower sound beam to form a lower bridge type sound beam structure, and the second lower bridge opening is erected on the seventh groove. A third lower bridge opening may be provided on the third lower sound beam, the third lower bridge opening being a hole at one side of the third lower sound beam and making the third lower sound beam form a lower bridge type sound beam structure, the third lower bridge opening being erected on the ninth trench.

6. In the above scheme, a first upper reinforcing plate can be arranged between the two first upper sound beams in the fixed frame. A first lower reinforcing plate may be provided between the two first lower sound beams. A second lower reinforcing plate may be provided between the two second lower sound beams.

7. In the above scheme, the large transom beam is provided with a first avoidance port corresponding to the first upper beam, a support column is arranged in the first avoidance port, and the support column is fixedly connected with the large transom beam. The big transom beam is provided with a second avoidance opening corresponding to the first transom beam. The side edge of the big transom beam connected with the panel and the side plate is provided with a first notch, and a first crescent moon hole is formed among the first notch, the panel and the inner wall of the side plate in an assembly state. The side that big transom beam and intermediate lamella and curb plate are connected is equipped with the second breach, forms the second bud hole between this second breach and intermediate lamella and the curb plate inner wall under the assembled condition.

8. In the above scheme, the side edge of the small transom beam connected with the middle plate and the side plate is provided with a third notch, and a third bud hole is formed between the third notch and the inner wall of the middle plate and the inner wall of the side plate in an assembly state. And a fourth notch is arranged on the side edge of the small transom beam connected with the front bottom plate and the side plate, and a fourth crescent hole is formed among the fourth notch, the front bottom plate and the inner wall of the side plate in an assembly state.

9. In the above scheme, the first groove, the second groove, the fifth groove, the sixth groove, the seventh groove, the eighth groove, the third groove, the fourth groove, the ninth groove and the tenth groove are preferably arc-shaped grooves.

The design principle and the conception of the utility model are as follows: in the case of a ten-stringed instrument, there are many factors that affect the timbre and penetration thereof, such as the material, thickness, internal structure, and the like of the resonance box. The utility model discloses a solve present ten string musical instrument resonant tanks can't compromise the problem that high, well, bass district possess good resonance tone and penetrating power simultaneously, mainly follow the resonant tank, especially the angle of resonant tank inner structure is set out and is carried out thorough improvement to it. The concrete aspects are as follows: firstly, two first upper sound beams are fixedly arranged on the inner wall of a panel of a first resonance cavity in parallel; secondly, two second upper sound beams are fixedly arranged on the lower side wall surface of the middle plate of the second resonance cavity in parallel; thirdly, transverse and longitudinal grooves (namely a first groove and a second groove) are formed in the inner wall of the panel of the first resonance cavity to form an upper transverse sound tunnel and an upper longitudinal sound tunnel; fourthly, the lower side wall surface of the middle plate of the second resonance cavity is provided with a transverse groove and a longitudinal groove (namely a third groove and a fourth groove) to form an upper transverse sound tunnel and an upper longitudinal sound tunnel. The utility model discloses bright not coming out to current ten string musical instruments high pitch district, and the low pitch district is muddy mellow and mellow not enough and the not strong problem of musical instrument sound penetrating power, to the resonant tank of ten string musical instruments, especially resonant tank structure and sound production mechanism have carried out deep discussion and research, the tone quality and the volume that have found out current ten string musical instruments high pitch district and low pitch district are not good and the main reason that the penetrating power is not enough are because the resonant tank, especially the unreasonable result of resonant chamber design, 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 the traditional resonant tank design of ten string musical instruments in the past, and the bold has proposed the utility model discloses an improve design, solved ten string musical instruments high pitch zone from the angle of vibration, sympathetic response, sound production and can not come out, and the low pitch zone is muddy mellow and mellow not enough and musical instrument sound penetrating power's 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 prior art, the present invention has the following advantages and effects (best mode is the content of the embodiments of the present invention is illustrated):

1. the utility model discloses at the panel, all be provided with the two sound beam structures on intermediate lamella and bottom plate (set up two first beams of raising one's voice promptly side by side on panel inner wall, set up two first beams of raising one's voice side by side on the upside wall of intermediate lamella, set up two second beams of raising one's voice side by side on the back bottom plate inner wall, set up two second beams of raising one's voice side by side on the downside wall of intermediate lamella, set up two third beams of raising one's voice side by side on the bottom plate inner wall in the front, because the relative high pitch amplitude of bass is big, the frequency is low, the bass sympathetic response is concentrated in the central zone of resonant tank, the high pitch sympathetic response is concentrated in the edge region all around of resonant tank, the panel has been strengthened, intermediate lamella and bottom plate central zone intensity, play important. On the other hand, the strength of the central areas of the panel, the middle plate and the bottom plate is enhanced, the thickness difference between the central area of the resonance box and the peripheral edge area is relatively changed, and the sound quality and the penetrating power of a high-sound area are improved.

2. The utility model discloses to first resonance chamber and second resonance chamber, seted up horizontal and vertical slot (first slot to tenth slot promptly) respectively on the inner wall of panel, intermediate lamella and bottom plate. These grooves each form a sound tunnel (i.e., a tunnel for sound) in the respective panel wall. Because the bass is big, the frequency is low relatively the high pitch amplitude, the bass sympathetic response is concentrated in the central zone of resonant tank, the high pitch sympathetic response is concentrated in the peripheral edge region of resonant tank, the string vibration is collected by the criss-cross central zone of sound tunnel to transmit around the resonant chamber rapidly through last sound tunnel, this tone quality and the penetrating power to improving the high tone zone have played the key effect, have also played good effect to the tone quality and the penetrating power of improving the low tone zone simultaneously.

3. The utility model discloses design into bridge type sound roof beam structure with the sound roof beam, especially have the hole to lack in one side design of sound roof beam, make the sound roof beam like bridge arch structure. When the sound beam is erected on the sound tunnel, the vibration is transmitted through the sound tunnel, and the resonance of the resonance cavity is facilitated.

4. The utility model adopts the combination design of the transom beam, the longitudinal beam and the groove on the inner walls of the panel, the middle plate and the bottom plate, and divides the space below the panel corresponding to the first resonance cavity into four resonance areas of the front half part and four resonance areas of the rear half part under the overlooking state; simultaneously, the space above the middle plate corresponding to the first resonance cavity is divided into four resonance areas, the space above the rear bottom plate corresponding to the first resonance cavity is divided into four resonance areas, the space below the middle plate corresponding to the second resonance cavity is divided into four resonance areas, and the space above the front plate corresponding to the second resonance cavity is divided into four resonance areas, wherein the total number of the four resonance areas is twenty-four. When the ten-string instrument is played, the string vibration is firstly transmitted to the center area of the sound tunnel intersection, then is transmitted to the twenty-four resonance areas through the sound tunnel, and resonance and vibration are generated, so that the string sound is amplified to be the resonance sound of the resonance box. Only can produce eight sound wave volume when improving ten string musical instruments before playing, two resonance regions in the first resonance chamber of first portion promptly, two resonance regions in the lower half, resonance region in the second resonance chamber's half, resonance region in the lower half, six resonance regions in total. Each resonance area generates a sound wave quantity, a chord wave quantity is added, and a percussion wave quantity is added, so that eight sound wave quantities are calculated. And after improving the utility model discloses can produce twenty six sound wave volume when ten string qin play, wherein, twenty four sympathetic response regions produce twenty four sound wave volume, in addition a string wave volume, in addition a percussion wave volume, totally twenty six sound wave volumes. The sound wave quantity, i.e. the number of sound waves, for a plucked instrument of a specific resonance box mainly depends on the number of resonance areas in the resonance box, besides one string wave quantity and one percussion wave quantity, and usually, the instrument generates one sound wave quantity per resonance area during playing, and how many resonance areas generate how many sound wave quantities. In addition, the sound volume directly affects the timbre, penetration and volume of the instrument. Therefore, the utility model relates to a can obviously improve the tone quality in high-pitched sound district and bass district, increase the penetrating power in high-pitched sound district and bass district.

5. The utility model discloses the moon bud hole between transom beam and panel, intermediate lamella and the bottom plate is the passageway between each sympathetic response region in the sympathetic response intracavity, and this kind of passageway design has the sound wave of doing benefit to each other, sympathetic response and vibration.

6. The utility model discloses the mount is equipped with the reinforcing plate between two adjacent sound roof beams (be first go up the reinforcing plate, reinforcing plate under first reinforcing plate and the second), its effect can increase the panel, intermediate lamella and bottom plate middle part are regional, especially intensity between the sound roof beam, secondly can increase the load when the sound roof beam produces the sympathetic response, the tone quality and the penetrating power of bass district have further been improved, on the other hand has strengthened the central zone in resonance chamber, also pull open relatively speaking with the intensity in resonance chamber edge region all around, also be favorable to improving the tone quality and the penetrating power in bass district.

7. First slot to tenth slot all adopt the arc wall, can be so that panel, intermediate lamella 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 should be particularly emphasized that the measures for providing the dual-sound beam structure and the grooves on the inner wall of the panel of the first resonance cavity and the lower side wall of the middle plate of the second resonance cavity are more important than the measures for the upper side wall of the middle plate of the first resonance cavity and the inner wall of the bottom plate of the second resonance cavity, and the functions and effects are better in relative terms. 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 solution to set up the two sound beam structures on the panel inner wall and set up the slot the utility model discloses technical problem's key, and it is right to set up the two sound beam structures on the bottom plate inner wall and set up the slot the utility model discloses it is better to add the flower, and this is that technical staff in the field understands easily.

Drawings

FIG. 1 is a schematic view of a main view structure of a ten-stringed instrument resonator in an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view of the resonator tank of FIG. 2;

FIG. 4 is a front view of the inner wall of the panel of the resonance box of the ten-stringed plucked instrument in the embodiment of the present invention;

FIG. 5 is a front view of the inner wall of the bottom plate of the resonance box of the ten-stringed plucked instrument in the embodiment of the present invention;

FIG. 6 is a top view of a middle plate of a resonance box of a ten-stringed instrument according to an embodiment of the present invention;

fig. 7 is a front view of a first upper sound beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 8 is a left view of a first upper sound beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 9 is a front view of a first tuning beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 10 is a left view of a first tuning beam of a ten-stringed instrument according to an embodiment of the present invention;

fig. 11 is a front view of a second bass beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 12 is a left view of a second bottom beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 13 is a front view of a second tuning beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 14 is a left view of a second upper sound beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 15 is a front view of a third bass beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 16 is a left view of a third bass beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 17 is a front view of a large transom beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 18 is a left side view of a large transom beam of a ten-stringed instrument according to an embodiment of the present invention;

FIG. 19 is a front view of a small transom beam of the ten-stringed instrument according to the embodiment of the present invention;

fig. 20 is a left view of a small transom beam of a ten-stringed instrument according to an embodiment of the present invention.

In the above drawings: 1. a panel; 2. a base plate; 201. a front chassis; 202. a rear floor; 3. a side plate; 4. a middle plate; 5. a first resonance chamber; 6. a second resonance chamber; 7. a first sound hole; 8. a first trench; 9. a second trench; 10. a fifth trench; 11. a sixth trench; 12. a seventh trench; 13. an eighth trench; 14. a third trench; 15. a fourth trench; 16. a ninth trench; 17. a tenth trench; 18. a first upper sound beam; 19. a second upper sound beam; 20. a first bottom sound beam; 21. a second bottom sound beam; 22. a third bottom beam; 23. a second sound hole; 24. a third sound hole; 25. a large transom beam; 26. a small transom beam; 27. a first upper reinforcing plate; 28. a first lower reinforcing plate; 29. a second lower reinforcing plate; 30. a first upper bridge opening; 31. a second upper bridge opening; 32. a first lower bridge opening; 33. a second lower bridge opening; 34. a third lower bridge opening; 35. a first notch; 36. a second notch; 37. a first avoidance port; 38. a second avoidance port; 39. a pillar; 40. a third notch; 41. a fourth notch; 42. a first bud aperture; 43. a second orychophragmus violaceus hole; 44. a third bud hole; 45. and (4) a fourth month bud hole.

Detailed Description

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

example (b): double-sound beam ten-string musical instrument

Because the innovation of the utility model is concentrated on the resonance box, the structure and the structure of ten string musical instrument resonance boxes will be described with emphasis to this embodiment, and other structures can be considered to adopt prior art to realize, and do not describe in detail in this embodiment again.

The structure and the structure of the ten-stringed instrument resonance box of the embodiment are as follows: as shown in fig. 1 to 20, the box body of the resonance box is formed by splicing a panel 1, a bottom plate 2 and side plates 3 (see fig. 1), wherein the bottom plate 2 is formed by connecting a front bottom plate 201 and a rear bottom plate 202 in a staggered manner in the height direction of the box body (see fig. 1), and the front bottom plate 201 is lower than the rear bottom plate 202 in the height direction of the box body. An intermediate plate 4 (see fig. 1 and 3) is provided in the cabinet, the intermediate plate 4 is located at a position corresponding to the front bottom plate 201 in the front-rear direction of the cabinet (see fig. 1), and divides the internal space of the cabinet between the front bottom plate 201 and the panel 1 into a first resonance chamber 5 located at the upper part and a second resonance chamber 6 located at the lower part (see fig. 1 and 3), wherein the first resonance chamber 5 is formed by a space between the intermediate plate 4 and the panel 1 and a space between the rear bottom plate 202 and the panel 1 (see fig. 1), and the second resonance chamber 6 is formed by a space between the intermediate plate 4 and the front bottom plate 201 (see fig. 1). The intermediate plate 4 is provided with a first sound hole 7 (see fig. 6), and the first resonance chamber 5 and the second resonance chamber 6 are communicated through the first sound hole 7.

Two first upper sound beams 18 (see fig. 1) are arranged in the first resonance cavity 5, the first upper sound beams 18 are long-strip-shaped sound beam components (see fig. 7 and 8), one sides of the two first upper sound beams 18 are tightly fixed on the inner wall of the panel 1, the other sides of the two first upper sound beams 18 are suspended in the first resonance cavity 5 (see fig. 2), the length direction of the two first upper sound beams 18 is consistent with the length direction of the resonance box (see fig. 4), and the two first upper sound beams 18 are parallel and parallel in the width direction of the resonance box and are separated by a certain distance. The first upper tuning beam 18 is provided with a first upper bridge opening 30 (see fig. 7), the first upper bridge opening 30 is a hole at one side of the first upper tuning beam 18 and enables the first upper tuning beam 18 to form an upper bridge type tuning beam structure, and the first upper bridge opening 30 is erected on the first groove 8.

Two first grooves 8 (see fig. 4) are arranged on the inner wall of the panel 1 corresponding to the first resonance cavity 5, the two first grooves 8 are both opened 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 corresponding to the first resonance chamber 5, the second groove 9 is opened along the length direction of the resonance box, and the second groove 9 is located at the center position in the width direction of the resonance box. Two first grooves 8 and one second groove 9 are arranged to intersect on the inner wall of the panel 1 and penetrate each other, wherein the second groove 9 is located at a position between two first upper sound beams 18 (see fig. 4), and the length direction of the second groove 9 coincides with the length direction of the first upper sound beams 18. The two first grooves 8 cross the two first upper sound beams 18 in the width direction of the resonance box and form two upper transverse sound tunnels 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 (see fig. 4).

The length of the first groove 8 is less than the length of the panel 1 in the first resonance cavity 5 at the position corresponding to 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 smaller than the length of the panel 1 in the first resonance cavity 5 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.

Two second upper sound beams 19 (see fig. 5) are arranged in the second resonance chamber 6, the second upper sound beams 19 are long sound beam members (see fig. 13 and 14), one sides of the two second upper sound beams 19 are closely fixed on the lower side wall surface of the middle plate 4, the other sides of the two second upper sound beams 19 hang in the second resonance chamber 6 (see fig. 2), the length direction of the two second upper sound beams 19 is consistent with the length direction of the resonance box, and the two second upper sound beams 19 are parallel and parallel in the width direction of the resonance box and are separated by a certain distance (see fig. 5). The second upper tuning beam 19 is provided with a second upper bridge opening 31 (see fig. 13), the second upper bridge opening 31 is a hole at one side of the second upper tuning beam 19, so that the second upper tuning beam 19 forms an upper bridge type tuning beam structure, and the second upper bridge opening 31 is erected on the third groove 14.

A third groove 14 and a fourth groove 15 (see fig. 5) are provided on the lower side wall surface of the middle plate 4 corresponding to the second resonance chamber 6, wherein the third groove 14 is provided along the width direction of the resonance box, the fourth groove 15 is provided along the length direction of the resonance box, the third groove 14 and the fourth groove 15 are arranged on the lower side wall surface of the middle plate 4 in a crossing manner and are communicated with each other, the fourth groove 15 is located between two second top beams 19 (see fig. 5), the length direction of the fourth groove 15 is consistent with the length direction of the second top beams 19, the third groove 14 crosses the two second top beams 19 in the width direction of the resonance box and forms an upper transverse sound tunnel on the lower side wall surface of the middle plate 4, and the fourth groove 15 forms an upper longitudinal sound tunnel on the lower side wall surface of the middle plate 4 (see fig. 5).

The length of the third grooves 14 is smaller than the length of the middle plate 4 in the second resonance cavity 6 at the corresponding position of the third grooves 14 (see fig. 5), and smooth transition surfaces are arranged between the two ends of the third grooves 14 and the lower side wall surface of the middle plate 4. The length of the fourth groove 15 is smaller than the length of the middle plate 4 in the second resonance chamber 6 at the position corresponding to the fourth groove 15 (see fig. 5), and smooth transition surfaces are arranged between both ends of the fourth groove 15 and the lower side wall surface of the middle plate 4.

Two first muffling beams 20 (see fig. 2 and 6) are provided in the first resonance chamber 5, the first muffling beams 20 are elongated sound beam members (see fig. 9 and 10), one side of each of the two first muffling beams 20 is fixed to the upper wall surface of the intermediate plate 4 in close contact therewith, the other side of each of the two first muffling beams 20 is suspended in the first resonance chamber 5 with respect to the panel 1 (see fig. 2), the longitudinal direction of each of the two first muffling beams 20 coincides with the longitudinal direction of the resonance box, and the two first muffling beams 20 are arranged in parallel and at a distance from each other in the width direction of the resonance box (see fig. 6). The first lower sound beam 20 is provided with a first lower bridge hole 32 (see fig. 9), the first lower bridge hole 32 is a hole at one side of the first lower sound beam 20 and makes the first lower sound beam 20 form a lower bridge type sound beam structure, and the first lower bridge hole 32 is erected on the fifth groove 10.

A fifth groove 10 and a sixth groove 11 (see fig. 6) are provided on the upper side wall surface of the middle plate 4 corresponding to the first resonance chamber 5, wherein the fifth groove 10 is opened in the width direction of the resonance box, the sixth groove 11 is opened in the length direction of the resonance box, the fifth groove 10 and the sixth groove 11 are arranged to intersect and penetrate each other on the upper side wall surface of the middle plate 4 (see fig. 3), wherein the sixth groove 11 is located between two first lower sound beams 20 (see fig. 6), the length direction of the sixth groove 11 coincides with the length direction of the first lower sound beams 20, the fifth groove 10 crosses the two first lower sound beams 20 in the width direction of the resonance box and forms a lower transverse tunnel on the upper side wall surface of the middle plate 4, and the sixth groove 11 forms a lower longitudinal sound tunnel on the upper side wall surface of the middle plate 4 (see fig. 6).

The length of the fifth groove 10 is smaller than the length of the middle plate 4 in the first resonance cavity 5 at the position corresponding to the fifth groove 10 (see fig. 6), and smooth transition surfaces are arranged between the two ends of the fifth groove 10 and the upper side wall surface of the middle plate 4. The length of the sixth grooves 11 is smaller than the length of the middle plate 4 in the first resonance chamber 5 at the corresponding position of the sixth grooves 11, and smooth transition surfaces are arranged between the two ends of the sixth grooves 11 and the upper side wall surface of the middle plate 4 (see fig. 6).

Two second lower sound beams 21 (see fig. 5) are arranged in the first resonance chamber 5, the second lower sound beams 21 are elongated sound beam members (see fig. 11 and 12), one sides of the two second lower sound beams 21 are closely fixed to the inner wall of the rear base plate 202, the other sides of the two second lower sound beams 21 are suspended in the first resonance chamber 5 with respect to the panel 1 (see fig. 1), the longitudinal direction of the two second lower sound beams 21 is identical to the longitudinal direction of the resonance box, and the two second lower sound beams 21 are parallel and parallel to each other in the width direction of the resonance box and are spaced apart by a distance (see fig. 5). A second lower bridge opening 33 (see fig. 11) is formed in the second lower sound beam 21, the second lower bridge opening 33 is a hole at one side of the second lower sound beam 21 and enables the second lower sound beam 21 to form a lower bridge type sound beam structure, and the second lower bridge opening 33 is erected on the seventh groove 12.

A seventh groove 12 and an eighth groove 13 (see fig. 5) are disposed on an inner wall of the rear base plate 202 corresponding to the first resonance cavity 5, wherein the seventh groove 12 is formed along a width direction of the resonator, the eighth groove 13 is formed along a length direction of the resonator, the seventh groove 12 and the eighth groove 13 are arranged in a cross manner on the inner wall of the rear base plate 202 and are communicated with each other, the eighth groove 13 is located between two second infrasonic beams 21 (see fig. 5), the length direction of the eighth groove 13 is consistent with the length direction of the second infrasonic beams 21, the seventh groove 12 spans the two second infrasonic beams 21 in the width direction of the resonator, a lower transverse tunnel sound is formed on the inner wall of the rear base plate 202, and a lower longitudinal sound tunnel is formed on the inner wall of the rear base plate 202 by the eighth groove 13 (see fig. 5).

The length of the seventh groove 12 is smaller than the length of the rear base plate 202 in the first resonance cavity 5 at the position corresponding to the seventh groove 12 (see fig. 5), and smooth transition surfaces are arranged between the two ends of the seventh groove 12 and the inner wall of the rear base plate 202. The length of the eighth groove 13 is smaller than the length of the rear base plate 202 in the first resonance cavity 5 at the position corresponding to the eighth groove 13 (see fig. 5), and smooth transition surfaces are arranged between both ends of the eighth groove 13 and the inner wall of the rear base plate 202.

Two third downnote beams 22 (see fig. 5) are arranged in the second resonance chamber 6, the third downnote beams 22 are long-strip-shaped beam members (see fig. 15 and 16), one sides of the two third downnote beams 22 are closely fixed to the inner wall of the front chassis 201, the other sides of the two third downnote beams 22 are suspended in the second resonance chamber 6 (see fig. 2), the length direction of the two third downnote beams 22 is consistent with the length direction of the resonance box, and the two third downnote beams 22 are parallel and parallel in the width direction of the resonance box and are separated by a certain distance (see fig. 5). A third lower bridge opening 34 (see fig. 15) is formed in the third lower sound beam 22, the third lower bridge opening 34 is a hole at one side of the third lower sound beam 22, so that the third lower sound beam 22 forms a lower bridge type sound beam structure, and the third lower bridge opening 34 is erected on the ninth groove 16.

A ninth groove 16 and a tenth groove 17 (see fig. 5) are provided on the inner wall of the front chassis 201 corresponding to the second resonance chamber 6, wherein the ninth groove 16 is provided along the width direction of the resonance box, the tenth groove 17 is provided along the length direction of the resonance box, the ninth groove 16 and the tenth groove 17 are arranged in a crossing manner on the inner wall of the front chassis 201 and penetrate each other, wherein the tenth groove 17 is located between the two third infrasonic beams 22 (see fig. 5), the length direction of the tenth groove 17 is identical to the length direction of the third infrasonic beams 22, the ninth groove 16 crosses the two third infrasonic beams 22 in the width direction of the resonance box and forms a lower transverse sound tunnel on the inner wall of the front chassis 201, and the tenth groove 17 forms a lower longitudinal sound tunnel on the inner wall of the front chassis 201 (see fig. 5).

The length of the ninth grooves 16 is smaller than the length of the front bottom plate 201 in the second resonance chamber 6 at the position corresponding to the ninth grooves 16 (see fig. 5), and smooth transition surfaces are arranged between both ends of the ninth grooves 16 and the inner wall of the front bottom plate 201. The length of the tenth groove 17 is smaller than the length of the front chassis 201 in the second resonance chamber 6 at the position corresponding to the tenth groove 17 (see fig. 5), and smooth transition surfaces are provided between both ends of the tenth groove 17 and the inner wall surface of the front chassis 201.

A large beam 25 (see fig. 2 and 4) is provided in the first resonance chamber 5, and the large beam 25 is plate-shaped (see fig. 17 and 18), wherein the large beam 25 is supported between the panel 1 and the middle plate 4 and fixed at the position of the first groove 8 (see fig. 2). The large transom beam 25 is bilaterally symmetrical with the central plane of the second groove 9 as a reference, wherein the top of the large transom beam 25 is fixedly connected with the panel 1, the bottom of the large transom beam 25 is fixedly connected with the middle plate 4, and the side part of the large transom beam 25 is fixedly connected with the side plate 3 on the corresponding side (see fig. 2). The large transom beam 25 is provided with a first avoidance opening 37 (see fig. 17) corresponding to the first upper sound beam 18, a strut 39 (see fig. 17) is arranged in the first avoidance opening 37, and the strut 39 is fixedly connected with the large transom beam 25. The large transom beam 25 is provided with a second escape opening 38 (see fig. 17) corresponding to the first transom beam 20. The side of the large transom 25 connected to the panel 1 and the side plate 3 is provided with a first notch 35 (see fig. 17), and a first crescent hole 42 (see fig. 2) is formed between the first notch 35 and the inner walls of the panel 1 and the side plate 3 in an assembled state. The side of the large transom 25 that connects the middle panel 4 and the side panel 3 is provided with a second notch 36 (see fig. 17), and a second february hole 43 (see fig. 2) is formed between the second notch 36 and the inner walls of the middle panel 4 and the side panel 3 in the assembled state.

A small cross-tone beam 26 (see fig. 2 and 5) is provided in the second resonance chamber 6, and the small cross-tone beam 26 is plate-shaped (see fig. 19 and 20), wherein the small cross-tone beam 26 is supported between the intermediate plate 4 and the front chassis 201 (see fig. 2) and fixed at the position of the third groove 14 (see fig. 5). The small transom 26 is bilaterally symmetrical with respect to the central plane of the fourth groove 15, wherein the top of the small transom 26 is fixedly connected to the middle plate 4, the bottom of the small transom 26 is fixedly connected to the front bottom plate 201, and the side of the small transom 26 is fixedly connected to the side plate 3 on the corresponding side (see fig. 2). The side of the small transom 26 that connects the middle plate 4 and the side plate 3 is provided with a third notch 40 (see fig. 19), and a third bud hole 44 (see fig. 2) is formed between the third notch 40 and the inner walls of the middle plate 4 and the side plate 3 in the assembled state. The side of the small transom 26 connected to the front base plate 201 and the side plate 3 is provided with a fourth notch 41 (see fig. 19), and a fourth bud hole 45 (see fig. 2) is formed between the fourth notch 41 and the inner walls of the front base plate 201 and the side plate 3 in the assembled state.

A first upper reinforcing plate 27 (see fig. 2) is fixed between the two first upper sound beams 18. A first lower reinforcing plate 28 is fixed between the two first lower sound beams 20 (see fig. 2). A second lower reinforcing plate 29 (see fig. 5) is fixed between the two second lower sound beams 21. The first groove 8, the second groove 9 (see fig. 3), the fifth groove 10, the sixth groove 11 (see fig. 3), the seventh groove 12, the eighth groove 13, the third groove 14, the fourth groove 15, the ninth groove 16 and the tenth groove 17 (see fig. 3) 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 first upper sound beams 18 are juxtaposed in parallel in the width direction of the resonance box (see fig. 2). The two first bottom sound beams 20 are juxtaposed in parallel (see fig. 2). The two second bottom sound beams 21 are juxtaposed in parallel (see fig. 5). The two second upper sound beams 19 are juxtaposed in parallel (see fig. 2). The two third infrasound beams 22 are juxtaposed in parallel (see fig. 2). However, the present invention is not limited to this, and the two first upper sound beams 18 need not be parallel, and the two first lower sound beams 20, the two second lower sound beams 21, the two second upper sound beams 19, and the two third lower sound beams 22 need not be parallel, but the parallel arrangement is the best, which is easily 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 and the upper and lower side wall surfaces of the middle plate 4 are provided with the dual sound beam structure and the grooves. However, the present invention is not limited to this, and the measures such as the beam and the groove on the inner wall of the bottom plate 2 and the upper side wall of the middle plate 4 can be cancelled or changed into other structural forms, and it is also feasible to only keep the technical measures set on the inner wall of the panel 1 and the lower side wall of the middle plate 4, and only the effect is slightly poor. The panel 1 is more important than the base plate 2 for a ten-stringed instrument resonator. The reason is that the panel 1 is provided with strings, while the base plate 2 is not directly related to the strings, as will be readily understood by those skilled in the art.

3. In the above embodiment, the double-sound-beam structure, that is, the structure in which two sound beams are arranged side by side, is provided on the inner walls of the panel 1 and the bottom plate 2 and on the upper and lower side wall surfaces of the middle plate 4. However, the present invention is not limited to this, and two sound beams can be changed from the form to four sound beams for parallel use. For the utility model, the four sound beams and the two sound beams are different in quantity and form, but the essence is the same. If two outer sound beams of the four sound beams are close to two inner sound beams, the two sound beams can be equal to the double sound beams. It is therefore believed that such a change does not bring about an unexpected effect and should be understood to be substantially equivalent. 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, the number of the first grooves 8 is two (see fig. 4), and the number of the second grooves 9 to the tenth grooves 17 is one (see fig. 5 and 6). The present invention is not limited thereto, and the number of the first to tenth grooves 8 to 17 may be one or more. Such variations may be determined on an actual basis. The number of the first grooves 8 to the tenth grooves 17 is at least one in nature. As will be readily understood by those skilled in the art.

5. In the above embodiment, the large transom beam 25 provided in the resonance box is bilaterally symmetrical with respect to the center plane of the second groove 9 (see fig. 2). However, the present invention is not limited to this, and each of the large beams 25 may be divided into two beams, which are arranged symmetrically with respect to the center plane of the second groove 9. Similarly, the small transom beams 26 provided in the resonance box are bilaterally symmetrical with respect to the center plane of the fourth groove 15 (see fig. 2). However, the present invention is not limited to this, and two small beams 26 may be combined into one beam, and arranged symmetrically with respect to the center plane of the fourth groove 15. As would be readily understood and accepted by those skilled in the art.

6. In the above embodiment, the first upper tuning beam 18 is provided with the first upper bridge opening 30, the second upper tuning beam 19 is provided with the second upper bridge opening 31, the first lower tuning beam 20 is provided with the first lower bridge opening 32, the second lower tuning beam 21 is provided with the second lower bridge opening 33, and the third lower tuning beam 22 is provided with the third lower bridge opening 34. However, the present invention is not limited to this, and the first upper bridge opening 30 may not be provided, or the second upper bridge opening 31, the first lower bridge opening 32, the second lower bridge opening 33, and the third lower bridge opening 34 may not be provided, or even only the bridge opening is provided on one or both of the first upper sound beam 18, the second upper sound beam 19, the first lower sound beam 20, the second lower sound beam 21, and the third lower sound beam 22. This is a variation that is readily understood and accepted by those skilled in the art.

7. In the above embodiment, the first upper reinforcing plate 27 (see fig. 2) is fixed between the two first upper sound beams 18, the first lower reinforcing plate 28 (see fig. 2) is fixed between the two first lower sound beams 20, and the second lower reinforcing plate 29 (see fig. 5) is fixed between the two second lower sound beams 21. However, the present invention is not limited to this, and the two first upper sound beams 18 may be suspended in the resonator without providing the first upper reinforcing plate 27. Similarly, the two first lower sound beams 20 may be suspended in the resonance box without providing the first lower reinforcing plate 28, or the second lower reinforcing plate 29 may not be provided.

8. In the above embodiments, the first to tenth grooves 8 to 17 are all arc-shaped grooves. However, the present invention is not limited to this, and the groove may be designed into other shapes, such as a V-shape, a U-shape, a W-shape, etc., but the arc-shaped groove is the best design. As would be readily understood and accepted by those skilled in the art.

9. In the above embodiment, the two first lower sound beams 20 and the two first upper sound beams 18 are arranged in vertical alignment (see fig. 2) as viewed in the cross section of the first resonance chamber 5 (see fig. 2). 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 first upper sound beams 18 have the same shape and size (see fig. 7), the two first lower sound beams 20 have the same shape and size (see fig. 9), the two second lower sound beams 21 have the same shape and size (see fig. 11), the two second upper sound beams 19 have the same shape and size (see fig. 13), and the two third lower sound beams 22 have the same shape and size (see fig. 15). However, the utility model discloses be not limited to this, the shape and the size of a dimension of two first beams of pronouncing 18 can not be the same, the shape and the size of a dimension of two first beams of pronouncing 20 also can not be the same, the shape and the size of a dimension of two second beams of pronouncing 21 also can not be the same, the shape and the size of a dimension of two second beams of pronouncing 19 also can not be the same, the shape and the size of a dimension of two third beams of pronouncing 22 also can 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

1. A double-sound-beam ten-string instrument comprises a resonance box, wherein the box body of the resonance box is formed by splicing a panel (1), a bottom plate (2) and side plates (3), the bottom plate (2) is formed by connecting a front bottom plate (201) and a rear bottom plate (202) in a staggered manner in the height direction of the box body, and the front bottom plate (201) is lower than the rear bottom plate (202) in the height direction of the box body; an intermediate plate (4) is arranged in the box body, the intermediate plate (4) is positioned at a position corresponding to the front bottom plate (201) in the front and back directions of the box body, and the internal space of the box body between the front bottom plate (201) and the panel (1) is divided into a first resonance cavity (5) positioned at the upper part and a second resonance cavity (6) positioned at the lower part, wherein the first resonance cavity (5) is formed by the space between the intermediate plate (4) and the panel (1) and the space between the back bottom plate (202) and the panel (1), and the second resonance cavity (6) is formed by the space between the intermediate plate (4) and the front bottom plate (201); be equipped with first sound hole (7) on intermediate lamella (4), first resonance chamber (5) and second resonance chamber (6) are through first sound hole (7) intercommunication, its characterized in that:

two first upper sound beams (18) are arranged in the first resonance cavity (5), the first upper sound beams (18) are strip-shaped sound beam components, one sides of the two first upper sound beams (18) are tightly attached and fixed on the inner wall of the panel (1), the other sides of the two first upper sound beams (18) are suspended in the first resonance cavity (5), the length direction of the two first upper sound beams (18) is consistent with the length direction of the resonance box, and the two first upper sound beams (18) are parallel in the width direction of the resonance box and are separated by a certain distance;

a first groove (8) is formed in the inner wall of the panel (1) corresponding to the first resonance cavity (5), 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 first resonance cavity (5), and the second groove (9) is formed in the length direction of the resonance box; 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, the second grooves (9) are located between the two first upper sound beams (18), and the length direction of the second grooves (9) is consistent with the length direction of the first upper sound beams (18); the first grooves (8) transversely cross two first upper sound beams (18) in the width direction of the resonator, upper transverse sound tunnels are formed on the inner wall of the panel (1), and the second grooves (9) form upper longitudinal sound tunnels on the inner wall of the panel (1);

two second upper sound beams (19) are arranged in the second resonance cavity (6), the second upper sound beams (19) are strip-shaped sound beam components, one sides of the two second upper sound beams (19) are tightly attached and fixed on the lower side wall surface of the middle plate (4), the other sides of the two second upper sound beams (19) are suspended in the second resonance cavity (6), the length direction of the two second upper sound beams (19) is consistent with the length direction of the resonance box, and the two second upper sound beams (19) are parallel in the width direction of the resonance box and are separated by a certain distance;

a third groove (14) and a fourth groove (15) are arranged on the lower side wall surface of the middle plate (4) corresponding to the second resonance cavity (6), wherein, the third groove (14) is arranged along the width direction of the resonance box, the fourth groove (15) is arranged along the length direction of the resonance box, the third groove (14) and the fourth groove (15) are arranged on the lower side wall surface of the middle plate (4) in a crossed way and are mutually communicated, wherein the fourth groove (15) is positioned between the two second upper sound beams (19), the length direction of the fourth groove (15) is consistent with the length direction of the second upper sound beams (19), the third groove (14) crosses the two second upper sound beams (19) in the width direction of the resonance box, and an upper transverse sound tunnel is formed on the lower side wall surface of the middle plate (4), and an upper longitudinal sound tunnel is formed on the lower side wall surface of the middle plate (4) by the fourth groove (15).

2. The ten-stringed instrument of claim 1, wherein: two first lower sound beams (20) are arranged in the first resonance cavity (5), the first lower sound beams (20) are long-strip-shaped sound beam components, one sides of the two first lower sound beams (20) are tightly fixed on the upper side wall surface of the middle plate (4), the other sides of the two first lower sound beams (20) are suspended in the first resonance cavity (5) relative to the panel (1), the length direction of the two first lower sound beams (20) is consistent with the length direction of the resonance box, and the two first lower sound beams (20) are parallel and are separated by a certain distance when viewed in the width direction of the resonance box;

a fifth groove (10) and a sixth groove (11) are arranged on the upper side wall surface of the middle plate (4) corresponding to the first resonance cavity (5), wherein, the fifth groove (10) is arranged along the width direction of the resonance box, the sixth groove (11) is arranged along the length direction of the resonance box, the fifth groove (10) and the sixth groove (11) are arranged on the upper side wall surface of the middle plate (4) in a crossed way and are mutually communicated, wherein the sixth groove (11) is positioned between the two first lower sound beams (20), the length direction of the sixth groove (11) is consistent with the length direction of the first lower sound beams (20), the fifth groove (10) spans the two first lower sound beams (20) in the width direction of the resonance box, a lower transverse sound tunnel is formed on the upper side wall surface of the middle plate (4), and a lower longitudinal sound tunnel is formed on the upper side wall surface of the middle plate (4) by the sixth groove (11);

two second lower sound beams (21) are arranged in the first resonance cavity (5), the second lower sound beams (21) are long-strip-shaped sound beam components, one sides of the two second lower sound beams (21) are tightly attached and fixed on the inner wall of the rear bottom plate (202), the other sides of the two second lower sound beams (21) are suspended in the first resonance cavity (5) relative to the panel (1), the length direction of the two second lower sound beams (21) is consistent with the length direction of the resonance box, and the two second lower sound beams (21) are parallel and separated by a certain distance when viewed in the width direction of the resonance box;

a seventh groove (12) and an eighth groove (13) are arranged on the inner wall of the rear bottom plate (202) corresponding to the first resonance cavity (5), wherein the seventh groove (12) is formed along the width direction of the resonance box, the eighth groove (13) is formed along the length direction of the resonance box, the seventh groove (12) and the eighth groove (13) are arranged on the inner wall of the rear bottom plate (202) in a crossed manner and are communicated with each other, the eighth groove (13) is positioned between the two second lower sound beams (21), the length direction of the eighth groove (13) is consistent with the length direction of the second lower sound beams (21), the seventh groove (12) crosses the two second lower sound beams (21) in the width direction of the resonance box, a lower transverse sound tunnel is formed on the inner wall of the rear bottom plate (202), and the eighth groove (13) forms a lower longitudinal sound tunnel on the inner wall of the rear bottom plate (202);

two third lower sound beams (22) are arranged in the second resonance cavity (6), the third lower sound beams (22) are strip-shaped sound beam components, one sides of the two third lower sound beams (22) are tightly attached and fixed on the inner wall of the front bottom plate (201), the other sides of the two third lower sound beams (22) are suspended in the second resonance cavity (6), the length directions of the two third lower sound beams (22) are consistent with the length direction of the resonance box, and the two third lower sound beams (22) are parallel in the width direction of the resonance box and are separated by a certain distance;

and a ninth groove (16) and a tenth groove (17) are arranged on the inner wall of the front bottom plate (201) corresponding to the second resonance cavity (6), wherein the ninth groove (16) is formed along the width direction of the resonance box, the tenth groove (17) is formed along the length direction of the resonance box, the ninth groove (16) and the tenth groove (17) are arranged on the inner wall of the front bottom plate (201) in a crossed manner and are communicated with each other, the tenth groove (17) is positioned between the two third lower sound beams (22), the length direction of the tenth groove (17) is consistent with the length direction of the third lower sound beams (22), the ninth groove (16) crosses the two third lower sound beams (22) in the width direction of the resonance box, a lower transverse sound tunnel is formed on the inner wall of the front bottom plate (201), and the tenth groove (17) forms a lower longitudinal sound tunnel on the inner wall of the front bottom plate (201).

3. The ten-stringed instrument of claim 1, wherein: a large transverse sound beam (25) is arranged in the first resonance cavity (5), the large transverse sound beam (25) is in a plate shape, and the large transverse sound beam (25) is supported between the panel (1) and the middle plate (4) and fixed on the position of the first groove (8); the large transom beam (25) is bilaterally symmetrical by taking the central plane of the second groove (9) as a reference, wherein the top of the large transom beam (25) is fixedly connected with the panel (1), the bottom of the large transom beam (25) is fixedly connected with the middle plate (4), and the side part of the large transom beam (25) is fixedly connected with the side plate (3) on the corresponding side;

a small transverse sound beam (26) is arranged in the second resonance cavity (6), the small transverse sound beam (26) is in a plate shape, and the small transverse sound beam (26) is supported between the middle plate (4) and the front bottom plate (201) and fixed on the position of the third groove (14); the small transom beam (26) is bilaterally symmetrical by taking the central plane of the fourth groove (15) as a reference, wherein the top of the small transom beam (26) is fixedly connected with the middle plate (4), the bottom of the small transom beam (26) is fixedly connected with the front bottom plate (201), and the side part of the small transom beam (26) is fixedly connected with the side plate (3) on the corresponding side.

4. The ten-stringed instrument of claim 2, wherein: a first upper bridge opening (30) is formed in the first upper sound beam (18), the first upper bridge opening (30) is in a gap at one side of the first upper sound beam (18) and enables the first upper sound beam (18) to form an upper bridge type sound beam structure, and the first upper bridge opening (30) is erected on the first groove (8);

a second upper bridge opening (31) is formed in the second upper sound beam (19), the second upper bridge opening (31) is in a hole gap at one side of the second upper sound beam (19) and enables the second upper sound beam (19) to form an upper bridge type sound beam structure, and the second upper bridge opening (31) is erected on the third groove (14);

a first lower bridge hole (32) is formed in the first lower sound beam (20), the first lower bridge hole (32) is a hole at one side of the first lower sound beam (20) and enables the first lower sound beam (20) to form a lower bridge type sound beam structure, and the first lower bridge hole (32) is erected on the fifth groove (10);

a second lower bridge hole (33) is formed in the second lower sound beam (21), the second lower bridge hole (33) is a hole gap on one side of the second lower sound beam (21) and enables the second lower sound beam (21) to form a lower bridge type sound beam structure, and the second lower bridge hole (33) is erected on the seventh groove (12);

and a third lower bridge opening (34) is formed in the third lower sound beam (22), one side of the third lower bridge opening (34) on the third lower sound beam (22) is a hole gap, the third lower sound beam (22) forms a lower bridge type sound beam structure, and the third lower bridge opening (34) is erected on the ninth groove (16).

5. The ten-stringed instrument of claim 2, wherein: a first upper reinforcing plate (27) is arranged between the two first upper sound beams (18) in a fixed frame manner; a first lower reinforcing plate (28) is arranged between the two first lower sound beams (20) in a fixed frame way; a second lower reinforcing plate (29) is arranged between the two second lower sound beams (21).

6. The ten-stringed instrument of claim 1, wherein: the length of the first groove (8) is smaller than that of the panel (1) in the first resonance cavity (5) at the corresponding position of the first groove (8), and smooth transition surfaces are arranged between 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 first resonance cavity (5) at the corresponding position of the second groove (9), and smooth transition surfaces are arranged between the two ends of the second groove (9) and the inner wall of the panel (1);

the length of the third groove (14) is smaller than that of the middle plate (4) in the second resonance cavity (6) at the position corresponding to the third groove (14), and smooth transition surfaces are arranged between two ends of the third groove (14) and the lower side wall surface of the middle plate (4); the length of the fourth groove (15) is smaller than that of the middle plate (4) in the second resonance cavity (6) at the corresponding position of the fourth groove (15), and smooth transition surfaces are arranged between the two ends of the fourth groove (15) and the lower side wall surface of the middle plate (4).

7. The ten-stringed instrument of claim 2, wherein: the length of the fifth groove (10) is smaller than that of the middle plate (4) in the first resonance cavity (5) at the position corresponding to the fifth groove (10), and smooth transition surfaces are arranged between the two ends of the fifth groove (10) and the upper side wall surface of the middle plate (4); the length of the sixth groove (11) is smaller than that of the middle plate (4) in the first resonance cavity (5) at the corresponding position of the sixth groove (11), and smooth transition surfaces are arranged between the two ends of the sixth groove (11) and the upper side wall surface of the middle plate (4);

the length of the seventh groove (12) is smaller than that of the rear bottom plate (202) in the first resonance cavity (5) at the position corresponding to the seventh groove (12), and smooth transition surfaces are arranged between the two ends of the seventh groove (12) and the inner wall of the rear bottom plate (202); the length of the eighth groove (13) is smaller than that of the rear bottom plate (202) in the first resonance cavity (5) at the position corresponding to the eighth groove (13), and smooth transition surfaces are arranged between the two ends of the eighth groove (13) and the inner wall of the rear bottom plate (202);

the length of the ninth groove (16) is smaller than that of the front bottom plate (201) in the second resonance cavity (6) at the position corresponding to the ninth groove (16), and smooth transition surfaces are arranged between two ends of the ninth groove (16) and the inner wall of the front bottom plate (201); the length of the tenth groove (17) is smaller than that of the front bottom plate (201) in the second resonance cavity (6) at the position corresponding to the tenth groove (17), and smooth transition surfaces are arranged between two ends of the tenth groove (17) and the inner wall surface of the front bottom plate (201).

8. The ten-stringed instrument of claim 3, wherein: a first avoidance opening (37) is formed in the large transom beam (25) corresponding to the first upper sound beam (18), a support column (39) is arranged in the first avoidance opening (37), and the support column (39) is fixedly connected with the large transom beam (25); a second avoidance opening (38) is formed in the large transom beam (25) corresponding to the first transom beam (20);

a first notch (35) is formed in the side edge of the large transom beam (25) connected with the panel (1) and the side plate (3), and a first crescent hole (42) is formed between the first notch (35) and the inner walls of the panel (1) and the side plate (3) in an assembly state; and a second notch (36) is formed in the side edge of the large transom beam (25) connected with the middle plate (4) and the side plate (3), and a second February sprout hole (43) is formed between the second notch (36) and the inner walls of the middle plate (4) and the side plate (3) in an assembly state.

9. The ten-stringed instrument of claim 3, wherein: a third notch (40) is formed in the side edge of the small transom beam (26) connected with the middle plate (4) and the side plate (3), and a third bud hole (44) is formed among the third notch (40), the middle plate (4) and the inner wall of the side plate (3) in an assembly state; and a fourth notch (41) is formed in the side edge of the small transom beam (26) connected with the front bottom plate (201) and the side plate (3), and a fourth crescent hole (45) is formed among the fourth notch (41), the front bottom plate (201) and the inner wall of the side plate (3) in an assembly state.

10. The ten-stringed instrument of claim 2, wherein: the first groove (8), the second groove (9), the fifth groove (10), the sixth groove (11), the seventh groove (12), the eighth groove (13), the third groove (14), the fourth groove (15), the ninth groove (16) and the tenth groove (17) are all arc-shaped grooves.