CN218631351U - Ten string musical instrument with sound tunnel - Google Patents

Abstract

The utility model provides a ten string musical instruments of voiced tunnel, includes the resonant box, and the box of this resonant box 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: horizontal and vertical grooves are formed in the inner wall of the panel, the upper side wall surface and the lower side wall surface of the middle plate and the inner wall of the bottom plate, and a sound tunnel is formed. The scheme solves the problems that a high pitch area cannot be bright, a low pitch area is not perfectly smooth and the penetrating power of a musical instrument sound is not strong when a ten-string musical instrument is played in the past.

Description

Ten string musical instrument with sound tunnel

Technical Field

The utility model relates to a plucked musical instrument of bullet, in particular to ten string musical instruments of voiced tunnel.

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 striae is engraved in the shade, the whole body is coated with black lacquer, the luster is soft and moist, and the 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 is not bright, the low tone area is not thick and 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 is that the ten string musical instrument resonant box can not satisfy the requirement of good resonance vibration between high range to bass district, can not adapt to the resonance and the vibration of high range, mediant district and the wide frequency variation of bass district promptly simultaneously. 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 of voiced tunnel, 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 string instrument with a sound tunnel 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:

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, wherein the first grooves form upper transverse sound tunnels on the inner wall of the panel, and the second grooves form upper longitudinal sound tunnels on the inner wall of the panel.

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 third groove forms an upper transverse sound tunnel on the lower side wall surface of the middle plate, and the fourth groove forms an upper longitudinal sound tunnel on the lower side wall surface of the middle plate.

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 foregoing solution, a fifth groove and a sixth groove may be disposed on the upper side wall surface of the middle plate corresponding to the first resonance cavity, where 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 crossing manner and are mutually communicated, the fifth groove forms a lower transverse sound tunnel on the upper side wall surface of the middle plate, and the sixth groove forms a lower longitudinal sound tunnel on the upper side wall surface of the middle plate.

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 seventh groove forms a lower transverse sound tunnel on the inner wall of the rear bottom plate, and the eighth groove forms a lower longitudinal sound tunnel on the inner wall of the rear bottom plate.

Be equipped with ninth slot and tenth slot on the inner wall of the preceding bottom plate that the second resonance chamber corresponds, wherein, the ninth slot is seted up along the width direction of resonant tank, and the tenth slot is seted up along the length direction of resonant tank, and ninth slot and tenth slot are crossed on the inner wall of preceding bottom plate and are arranged and link up each other, and wherein, horizontal sound tunnel under the ninth slot forms on the inner wall of preceding bottom plate, and the tenth slot forms vertical sound tunnel under on the inner wall of preceding bottom plate.

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

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

5. In the above scheme, the length of the fifth groove is smaller than the length of the middle plate in the first resonance cavity at the position corresponding to the fifth groove, and smooth transition surfaces are arranged between two ends of the fifth groove and the upper side wall surface of the middle plate; the length of the sixth groove is smaller than that of the middle plate in the first resonance cavity at the corresponding position of the sixth groove, and smooth transition surfaces are arranged between the two ends of the sixth groove and the upper side wall surface of the middle plate.

The length of the seventh groove is smaller than that of the rear bottom plate in the first resonance cavity at the corresponding position of the seventh groove, and smooth transition surfaces are arranged between two ends of the seventh groove and the inner wall of the rear bottom plate; the length of the eighth groove is smaller than that of the corresponding position of the rear bottom plate in the first resonance cavity, and smooth transition surfaces are arranged between two ends of the eighth groove and the inner wall of the rear bottom plate.

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

6. 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 all arc-shaped grooves.

The utility model relates to a principle and design are: in the case of a ten-string instrument, there are many factors that affect the timbre and the penetrating power 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 following measures are specifically adopted: firstly, transverse and longitudinal grooves (namely a first groove and a second groove) are formed in the inner wall of a panel of a 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 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.

2. 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. But need particularly emphasize to the utility model discloses the measure of seting up the slot on first resonance chamber panel inner wall and on second resonance chamber intermediate lamella downside wall is more important than adopting the equity measure on first resonance chamber intermediate lamella upside wall and on second resonance chamber bottom plate inner wall, and effect are better relatively speaking also. 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 grooves on the inner wall of the panel and on the lower side wall of the intermediate plate, and it is the grooves on the inner wall of the bottom plate and on the upper side wall of the intermediate plate that the present invention makes it more and more complicated, which is easily understood by those skilled in the art.

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 isbase:Sub>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 harp according to the embodiment of the present invention;

fig. 6 is a top view of a middle plate of the ten-string instrument resonance box according to the embodiment of the utility model;

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-string instrument according to the embodiment of the present invention;

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

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

fig. 16 is a left view of a third bottom sound beam of the ten-string 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 floor; 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 reinforcement plate; 29. a second lower reinforcement 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 dodging port; 39. a pillar; 40. a third notch; 41. a fourth notch; 42. a first crescent hole; 43. a second orychophragmus violaceus hole; 44. a third month sprout 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:

the embodiment is as follows: ten string musical instruments of voiced tunnel

Because the innovation of the utility model is concentrated on the resonator, the structure and the structure of ten string musical instrument resonators will be described in this embodiment with emphasis, and other structures can be considered to be realized by adopting the prior art, and detailed description is not made in this embodiment.

The structure and the structure of the ten-string 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. 7), 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. A first upper bridge opening 30 (see fig. 7) is formed in the first upper sound beam 18, the first upper bridge opening 30 is a hole at one side of the first upper sound beam 18, the first upper sound beam 18 forms an upper bridge type sound 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 in the width direction of the resonance box. Two first grooves 8 and one second groove 9 are arranged on the inner wall of the panel 1 to intersect 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 is identical to 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 cavity 6, the second upper sound beams 19 are long-strip-shaped sound beam members (see fig. 13 and 14), one sides of the two second upper sound beams 19 are tightly 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 (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 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 cavity 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 to intersect and penetrate each other, wherein the fourth groove 15 is located between two second top-tone beams 19 (see fig. 5), the length direction of the fourth groove 15 is identical to the length direction of the second top-tone beams 19, the third groove 14 crosses the two second top-tone beams 19 in the width direction of the resonance box and forms an upper transverse tone tunnel on the lower side wall surface of the middle plate 4, and the fourth groove 15 forms an upper longitudinal tone 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 mufflers 20 (see fig. 2 and 6) are provided in the first resonance chamber 5, the first mufflers 20 are elongated sound beam members (see fig. 9 and 10), one side of each of the two first mufflers 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 mufflers 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 mufflers 20 coincides with the longitudinal direction of the resonance box, and the two first mufflers 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 provided along the width direction of the resonance box, the sixth groove 11 is provided along the length direction of the resonance box, the fifth groove 10 and the sixth groove 11 are arranged to intersect on the upper side wall surface of the middle plate 4 and penetrate each other (see fig. 3), wherein the sixth groove 11 is located between the two first lower sound beams 20 (see fig. 6), the length direction of the sixth groove 11 is identical to 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 sound 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 infrasound beams 22 (see fig. 5) are arranged in the second resonance cavity 6, the third infrasound beams 22 are long-strip-shaped sound beam members (see fig. 15 and 16), one sides of the two third infrasound beams 22 are tightly fixed on the inner wall of the front baseplate 201, the other sides of the two third infrasound beams 22 are suspended in the second resonance cavity 6 (see fig. 2), the length direction of the two third infrasound beams 22 is consistent with the length direction of the resonance box, and the two third infrasound beams 22 are 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 bottom beam 22, the third lower bridge opening 34 is a hole at one side of the third bottom beam 22, so that the third bottom beam 22 forms a bottom 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 a 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 avoiding opening 37 (see fig. 17) corresponding to the first upper sound beam 18, a strut 39 (see fig. 17) is arranged in the first avoiding 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 evasion port 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 connecting the middle plate 4 and the side plate 3 is provided with a third notch 40 (see fig. 19), and a third crescent 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 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). 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 walls of the middle plate 4 are provided with the dual-tone beam structure and 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 utility model is not limited to this, and two sound beams can be changed into four sound beams for parallel use from the form. 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, consequently six sound roof beam symmetrical arrangement are also the utility model discloses change the mode equally. 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 first to tenth grooves 8 to 17 may be one or more in number. 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 transom beams 26 may be combined into one, and arranged in bilateral symmetry with the central plane of the fourth groove 15 as a reference. 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, and 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, and even only the bridge opening is provided on one or both of the first upper tone beam 18, the second upper tone beam 19, the first lower tone beam 20, the second lower tone beam 21, and the third lower tone 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 one 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 the tone quality of the resonance box. As would be readily understood and accepted by one skilled in the art.

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

Claims (5)

1. A string instrument with a sound tunnel 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:

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 groove (8) and the second groove (9) are arranged on the inner wall of the panel (1) in a crossed mode and are communicated with each other, wherein the first groove (8) forms an upper transverse sound tunnel on the inner wall of the panel (1), and the second groove (9) forms an upper longitudinal sound tunnel on the inner wall of the panel (1);

and 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 formed along the width direction of the resonator, the fourth groove (15) is formed along the length direction of the resonator, 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 mode and are communicated with each other, the third groove (14) 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).

2. The ten-stringed instrument of claim 1, wherein: 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 formed along the width direction of the resonance box, the sixth groove (11) is formed 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 mode and are communicated with each other, the fifth groove (10) forms a lower transverse sound 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);

a seventh groove (12) and an eighth groove (13) are formed in the inner wall of the rear bottom plate (202) corresponding to the first resonance cavity (5), wherein the seventh groove (12) is formed in the width direction of the resonance box, the eighth groove (13) is formed in 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 mode and are communicated with each other, a lower transverse sound tunnel is formed in the seventh groove (12) on the inner wall of the rear bottom plate (202), and a lower longitudinal sound tunnel is formed in the eighth groove (13) on the inner wall of the rear bottom plate (202);

the inner wall of a front bottom plate (201) corresponding to the second resonance cavity (6) is provided with a ninth groove (16) and a tenth groove (17), 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 mode and are communicated with each other, the ninth groove (16) forms a lower transverse sound tunnel 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 musical 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 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 first resonance cavity (5) 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);

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).

4. The ten-stringed musical 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 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 corresponding position of 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).

5. The ten-stringed musical 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.

Images