CN218602095U - Konghou with sound tunnel - Google Patents

Abstract

The utility model provides a take sound tunnel konghou, includes the resonance box of an arc cavity box, and the box of this resonance box mainly is gone up the soundboard by first, the second and is formed with soundboard amalgamation down, and the cross section of box is semi-circular cavity, its characterized in that: horizontal and vertical slot and formation sound tunnel have all been seted up on the inner wall of soundboard on first soundboard, second soundboard and lower soundboard. The scheme solves the problems that a high pitch area is not bright, a low pitch area is not thick and smooth enough and the sound penetrating power of the stringed instrument is not strong in the prior Konghou playing.

Description

Konghou with sound tunnel

Technical Field

The utility model relates to a plucked string musical instrument, in particular to take sound tunnel konghou.

Background

Kung-hou is ancient traditional Chinese stringed instruments also called plucked string instrument. Originally called "kan hou" or "sky hou", it was used in ancient times, except for palace music, and also spread to folks. <xnotran> , , . </xnotran> The ancient times of the fourteen century are no longer popular, so that the ancient times of the fourteen century can be gradually disappeared, and only some patterns of the konghou can be seen on the former mural and the relief. The sound box (resonator) is arranged on the curved wood bent upwards, seen from the vertical konghou painted in mass ancient times and the residual parts of Tang dynasty lacquer konghou and spiral konghou in China preserved in Japan Nara Zhengcang.

The modern konghou is a novel musical instrument which is combined with and developed by a harp guzheng, or is a reform type of a harp, namely a double-string harp. With the development of modern konghou, nowadays, the two-character konghou increasingly refers to the modern konghou. A modern Kung-hou belongs to a row and a column of world harps, and the appearance of the modern Kung-hou is double-row strings (36 strings in each row), while the harp is single-row strings. Modern konghou has a bridge (refer to the bridge of koto), but not a harp. The modern konghou has a phoenix return on the column, which is a representative symbol of Chinese traditional culture. Modern konghou uses playing techniques of harp for a great extent in playing techniques, and is commonly used for solo, repetition and accompanying for singing and dancing. Modern konghou loudspeaker boxes (resonator boxes) are also arranged on bent wood, and large-scale konghou for professional use in the aspect of the range of sound exceeds six octaves, even reaches seven octaves, and still has five octaves after the common konghou. The main sound board vibrates when playing, and the upper sound board does not vibrate when playing due to the fact that the upper sound board is thick and solid. The tone quality of the high tone area and the low tone area of the modern konghou is poor, and the specific expression is that the high tone area is not bright, the low tone area is not thick and smooth enough, the penetrating power of the organ sound is not strong, and needs to be further improved. The main reason for this is that the resonance box cannot meet the requirement of good resonance vibration from the high range to the low range, i.e. cannot simultaneously adapt to the resonance and vibration of wide frequency changes in the high range, the middle range and the low range. Further research shows that the factors influencing resonance and vibration in the resonance box are more, and besides the materials and the thickness of the panel and the bottom plate, the internal structure and the structure of the resonance box have larger influence. The existing konghou resonator 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 this, how to improve the resonator of the existing konghou, especially to improve the internal structure and structure of the resonator, is the subject of the present invention.

Disclosure of Invention

The utility model provides a band sound tunnel konghou, its purpose is that current konghou resonator can't compromise the problem that high, well, bass district possesses good resonance tone colour and penetrating power simultaneously.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a take sound tunnel konghou, includes the resonance box, and this resonance box is arc cavity box, and this arc cavity box mainly is gone up the soundboard by first, second and forms with soundboard amalgamation down, the cross section of arc cavity box is semi-circular cavity to the central point of semi-circular cavity is the first soundboard of going up of benchmark and is located upper left side and forms half left circular arc top, and the soundboard is located the upper right side and forms half right circular arc top on the second, and the soundboard lies in the below and forms the flat bottom of lower part down, and its innovation lies in:

a first groove is formed in the inner wall of the lower sound board and is formed in the transverse direction of the lower sound board; a second groove is formed in the inner wall of the lower sound board and is formed in the length direction of the arc-shaped hollow box body; the first grooves and the second grooves are arranged on the inner wall of the lower sound board in a crossed mode and are communicated with each other, the second grooves are located between the two lower sound beams, and the length direction of the second grooves is consistent with that of the lower sound beams; the first groove transversely crosses the two lower sound beams on the lower sound board, a lower transverse sound tunnel is formed on the inner wall of the lower sound board, and the second groove forms a lower longitudinal sound tunnel on the inner wall of the lower sound board.

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

1. in the above scheme, the theme is an konghou, and the innovation point is focused on a "resonator" of the konghou, so that the structures other than the resonator are not described. It can be considered that the other structures except the resonance box in the konghou of the utility model are realized by adopting the original konghou technology.

2. In the above-mentioned scheme, the "resonance box" refers to a body formed by mainly splicing a first upper sound board, a second upper sound board and a lower sound board. The resonance box of the konghou is an arc-shaped hollow box body, and the length direction of the arc-shaped hollow box body refers to the direction extending along the arc-shaped central line of the arc-shaped hollow box body. The transverse direction of the first sound-mounting plate means a direction perpendicular to the center line of the arc. Similarly, the transverse direction of the second upper sound board and the transverse direction of the lower sound board are also the directions perpendicular to the center line of the arc. The term "inner wall" as used herein means an inner wall surface of the resonance box, for example, the inner wall of the first upper tone plate means a wall surface located inside the first upper tone plate of the resonance box, and similarly, the inner walls of the second upper tone plate and the lower tone plate means a wall surface located inside the second upper tone plate and the lower tone plate of the resonance box.

3. In the above scheme, a third groove may be provided on an inner wall of the first upper sound board, and the third groove is provided along a transverse direction of the first upper sound board; a fourth groove is formed in the inner wall of the first upper sound board and is formed in the length direction of the arc-shaped hollow box body; the third groove and the fourth groove are arranged on the inner wall of the first upper sound board in a crossed mode and are communicated with each other, the fourth groove is located between the two first upper sound beams, and the length direction of the fourth groove is consistent with that of the first upper sound beams; the third slot is crossed two first sound beams on the first sound board, an upper transverse sound tunnel of the left half part is formed on the inner wall of the first sound board, and an upper longitudinal sound tunnel of the left half part is formed on the inner wall of the first sound board by the fourth slot.

A fifth groove is formed in the inner wall of the second sound-loading plate and is formed in the transverse direction of the second sound-loading plate; a sixth groove is formed in the inner wall of the second sound-loading plate and is formed in the length direction of the arc-shaped hollow box body; the fifth groove and the sixth groove are arranged on the inner wall of the second upper sound board in a crossed mode and are communicated with each other, the sixth groove is located between the two second upper sound beams, and the length direction of the sixth groove is consistent with the length direction of the second upper sound beams; the fifth groove crosses two second upper sound beams on the second upper sound board, an upper transverse sound tunnel of the right half part is formed on the inner wall of the second upper sound board, and the sixth groove forms an upper longitudinal sound tunnel of the right half part on the inner wall of the second upper sound board.

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

5. In the above scheme, the length of the third groove is smaller than the length of the first upper sound board at the corresponding position of the third groove, and smooth transition surfaces are arranged between the two ends of the third groove and the inner wall of the first upper sound board; the length of the fourth groove is smaller than that of the corresponding position of the first upper sound board in the fourth groove, and smooth transition surfaces are arranged between two ends of the fourth groove and the inner wall of the first upper sound board.

6. In the above scheme, the length of the fifth groove is smaller than the length of the second upper sound board at the position corresponding to the fifth groove, and smooth transition surfaces are arranged between two ends of the fifth groove and the inner wall of the second upper sound board; the length of the sixth groove is smaller than that of the second sound loading plate at the corresponding position of the sixth groove, and smooth transition surfaces are arranged between two ends of the sixth groove and the inner wall of the second sound loading plate.

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

The design principle and the conception of the utility model are as follows: for an konghou, factors influencing the timbre and the penetrating power of the konghou are many, such as the material, the thickness and the internal structure of a resonance box. The utility model discloses a solve current konghou resonant tank and 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 adopted specifically: the inner wall of the lower soundboard is provided with a transverse groove and a longitudinal groove (namely a first groove and a second groove) to form a lower transverse sound tunnel and a lower longitudinal sound tunnel. The utility model discloses to current konghou treble district bright not come out, and bass district muddy mellow and not enough and the problem that musical instrument sound penetrating power is not strong, go on deep discussion and research to the resonance box of konghou, especially resonance box structure and sound production mechanism, found out the tone quality and the sound volume of current konghou treble district and bass district not good and the main reason that the penetrating power is not enough because the resonance box design unreasonable causes, the sound wave can not produce good sympathetic response and vibration in the resonance box when leading to playing. In view of the above, the inventor has broken the constraint of traditional resonator design of an konghou in the past, and the bold has proposed the utility model discloses an improved design scheme has solved the angle of vibration, sympathetic response, sound production that the hi-hou high sound zone is bright and can not come out, and the bass zone is muddy and mellow not enough and the problem of musical instrument sound penetration is not strong, and practice proves that this improved design scheme 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 explained):

1. the utility model discloses to the resonant tank, seted up horizontal and vertical slot (third slot to second slot promptly) on the inner wall of soundboard and lower soundboard on first soundboard, second respectively. These grooves each form a transverse tone tunnel and a longitudinal tone tunnel (i.e., a tunnel for sound) in the respective panel walls. 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 all around in the resonant tank rapidly through these sound tunnels, this tone quality and the penetrating power to improving the high-pitched region have played the key effect, have also played the good effect to the tone quality and the penetrating power of improving the low-pitched region simultaneously.

2. Third slot all adopts the arc wall to second slot, can be so that first go up the soundboard, the second go up the soundboard and down the soundboard on thickness minimize thickness sudden change, influence the sympathetic response and the vibration of resonant tank.

The above advantages and effects are all explained in an optimum manner. It is particularly emphasized that the provision of the grooves in the inner wall of the lower sound board is more important than the provision of the equivalent means in the inner walls of the first and second upper sound boards, and the function and effect are relatively better. The reason is that the lower sound board is connected to the strings, while the first and second upper sound boards are not directly connected to the strings. It is therefore the key to solve the technical problem of the utility model to set up the slot on soundboard inner wall down, and it is right to set up the slot on first soundboard and second soundboard inner wall the utility model discloses it adds flowers to be majesty, and this is that the technical staff in the field understands easily.

Drawings

Fig. 1 is a schematic view of an konghou structure according to 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 a konghou horizontal sound beam according to an embodiment of the present invention;

fig. 5 is a left view of a transverse sound beam of an konghou according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view B-B of FIG. 1;

FIG. 7 is a cross-sectional view C-C of FIG. 1;

fig. 8 is a front view of a lower sound beam of an konghou according to an embodiment of the present invention;

fig. 9 is a left view of a lower sound beam of an konghou according to an embodiment of the present invention;

fig. 10 is a front view of a first upper sound beam of an konghou according to an embodiment of the present invention;

fig. 11 is a left view of a first upper sound beam of an konghou according to an embodiment of the present invention;

fig. 12 is a front view of a second tuning beam of an konghou according to an embodiment of the present invention;

fig. 13 is a left view of a second upper sound beam of an konghou according to an embodiment of the present invention.

In the above drawings: 1. a first sound-applying plate; 2. a second sound-applying plate; 3. a lower sound board; 4. a first upper frame plate; 5. a second upper frame plate; 6. a first lower frame plate; 7. a second lower frame plate; 8. a string fixing frame is arranged; 9. a lower string hanging fixing frame; 10. a support bar; 11. a first upper sound beam; 12. a second upper sound beam; 13. a bottom sound beam; 14. a first reinforcing plate; 15. a second reinforcing plate; 16. a third trench; 17. a fourth trench; 18. a fifth trench; 19. a sixth trench; 20. a first trench; 21. a second trench; 22. string nails; 23. a first upper bridge opening; 24. a second upper bridge opening; 25. a lower bridge opening; 26. a transom beam; 27. a through hole; 28. avoiding the mouth; 29. a first notch; 30. a second notch; 31. a first hole; 32. a second hole; 33. and (4) a tuning screw.

Detailed Description

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

example (b): konghou with sound tunnel

As shown in fig. 1-13, the konghou mainly comprises three parts, namely a resonator (sound box), a frame and strings, wherein the frame is formed by fixedly connecting an upper string hanging fixing frame 8 (see fig. 2 and 3), a lower string hanging fixing frame 9 (see fig. 1 and 6) and a support rod 10 (see fig. 1 and 7). The upper string fixing frame 8 is provided with string nails (not shown in fig. 2 and 3), the lower string fixing frame 9 is provided with string adjusting screws 33 (see fig. 1), the lower sound beam 13 is also provided with string nails 22 (see fig. 2), and one end of each string is fixed on the string nails (not shown in the figure) of the upper string fixing frame 8, then passes through the string nails 22 (see fig. 2) on the lower sound beam 13 and is finally fixed on the string adjusting screws 33 of the lower string fixing frame 9.

The resonator (sound box) of the konghou is arranged on an upper string hanging fixing frame 8 (see fig. 1), the resonator is an arc-shaped hollow box body (see fig. 1), the arc-shaped hollow box body is composed of a first upper sound board 1, a second upper sound board 2, a lower sound board 3, a first upper frame board 4, a second upper frame board 5, a first lower frame board 6 and a second lower frame board 7 (see fig. 3), wherein the first upper frame board 4 and the second upper frame board 5 are used as supporting frameworks of the center of the top of the resonator, the top of the resonator is provided with a strip-shaped opening, the first upper frame board 4 and the second upper frame board 5 are arranged on two sides of the strip-shaped opening of the top of the resonator (see fig. 2 and 3), the upper string hanging fixing frame 8 is positioned in the strip-shaped opening, and the upper string fixing frame 8 is positioned between the first upper frame board 4 and the second upper frame board 5, and a gap is reserved between the first upper frame board 4 and the second upper frame board 5 (see fig. 2 and 3). The first lower frame plate 6 and the second lower frame plate 7 serve as support frames on both sides of the bottom of the resonance box (see fig. 2 and 3). The arc hollow box body is formed by connecting a first upper sound board 1, a second upper sound board 2 and a lower sound board 3 through supporting frameworks at the center of the top and two sides of the bottom and finally splicing the first upper sound board, the second upper sound board and the lower sound board (see figure 3). The cross section of the arc hollow box body is a semicircular hollow cavity (see fig. 2 and 3), the first upper sound board 1 is positioned at the upper left side and forms an arc top at the left half part (see fig. 3) by taking the central point of the semicircular hollow cavity as a reference, the second upper sound board 2 is positioned at the upper right side and forms an arc top at the right half part (see fig. 3), and the lower sound board 3 is positioned at the lower side and forms a flat bottom at the lower part (see fig. 3).

Two lower sound beams 13 (see fig. 1 and 2) are arranged in the resonance box, the lower sound beams 13 are arc-shaped long-strip-shaped sound beam members, the side parts of the two lower sound beams 13 are tightly attached and fixed on the inner wall of the lower sound board 3 (see fig. 1), the length direction of the two lower sound beams 13 is consistent with the length direction of the arc-shaped hollow box body (see fig. 1), and the two lower sound beams 13 are arranged in parallel in the transverse direction of the lower sound board 3 and are separated by a certain distance (see fig. 2). The bottom sound beam 13 is provided with a bottom bridge opening 25 (see fig. 8), the bottom bridge opening 25 is a hole on one side of the bottom sound beam 13 and makes the bottom sound beam 13 form a bottom bridge sound beam structure, and the bottom bridge opening 25 is erected on the first groove 20 (see fig. 2 and 3).

Three first grooves 20 (see fig. 3) are arranged on the inner wall of the lower sound board 3, the three first grooves 20 are all arranged along the transverse direction of the lower sound board 3, and the three first grooves 20 are arranged at intervals in the length direction of the arc-shaped hollow box body (see fig. 1). A second groove 21 (see fig. 3) is arranged on the inner wall of the lower sound board 3, and the second groove 21 is opened along the length direction of the arc-shaped hollow box body. Three first grooves 20 and one second groove 21 intersect and penetrate each other on the inner wall of the lower sound board 3 (see fig. 3), wherein the second groove 21 is located at a position between the two lower sound beams 13 (see fig. 2), and the longitudinal direction of the second groove 21 coincides with the longitudinal direction of the lower sound beams 13. The three first grooves 20 cross the two lower tone beams 13 on the lower tone plate 3, and form three lower lateral tone tunnels (see fig. 3) on the inner wall of the lower tone plate 3, and the second grooves 21 form one lower longitudinal tone tunnel (see fig. 3) on the inner wall of the lower tone plate 3.

The length of the first groove 20 is smaller than that of the lower sound board 3 at the corresponding position of the first groove 20, and smooth transition surfaces are arranged between the two ends of the first groove 20 and the inner wall of the lower sound board 3 (see fig. 3). The length of the second groove 21 is smaller than that of the lower sound board 3 at the corresponding position of the second groove 21, and smooth transition surfaces are arranged between the two ends of the second groove 21 and the inner wall of the lower sound board 3 (see fig. 3).

Two first upper sound beams 11 are arranged in the resonance box, the first upper sound beams 11 are arc-shaped long-strip-shaped sound beam components (see fig. 10 and 11), the side parts of the two first upper sound beams 11 are closely fixed on the inner wall of the first upper sound board 1 (see fig. 2), the length direction of the two first upper sound beams 11 is consistent with the length direction of the arc-shaped hollow box body (as the first upper sound beams 11 and the second upper sound beams 12 are symmetrically arranged in the resonance box, see fig. 2, see the second upper sound beams 12 in fig. 1), and the two first upper sound beams 11 are parallel and parallel in the transverse direction of the first upper sound board 1 and are separated by a certain distance. The first upper tuning beam 11 is provided with a first upper bridge opening 23 (see fig. 10), the first upper bridge opening 23 is a hole at one side of the first upper tuning beam 11 and enables the first upper tuning beam 11 to form an upper bridge type tuning beam structure, and the first upper bridge opening 23 is erected on the third groove 16 (see fig. 2 and 3).

Three third grooves 16 (see fig. 3) are provided on the inner wall of the first soundboard 1, the three third grooves 16 are each opened in the transverse direction of the first soundboard 1, and the three third grooves 16 are arranged at intervals in the longitudinal direction of the arc-shaped hollow case (since the third grooves 16 and the fifth grooves 18 are symmetrically arranged in the resonance box, see fig. 3, reference is made to the fifth grooves 18 in fig. 1). A fourth groove 17 (see fig. 3) is provided on the inner wall of the first sound-absorbing board 1, and the fourth groove 17 is opened in the longitudinal direction of the arc-shaped hollow box (the sixth groove 19 in fig. 1 can be referred to since the fourth groove 17 and the sixth groove 19 are symmetrically arranged in the resonance box, see fig. 3). Three third grooves 16 and one fourth groove 17 intersect and penetrate each other on the inner wall of the first upper sound board 1 (see fig. 3), wherein the fourth groove 17 is located at a position between two first upper sound beams 11 (refer to a sixth groove 19 in fig. 1), and the longitudinal direction of the fourth groove 17 coincides with the longitudinal direction of the first upper sound beams 11. The three third grooves 16 cross the two first tone beams 11 on the first tone plate 1, and form three upper lateral tone tunnels of the left half (see fig. 3) on the inner wall of the first tone plate 1, and the fourth grooves 17 form one upper longitudinal tone tunnel of the left half (see fig. 3) on the inner wall of the first tone plate 1.

The length of the third groove 16 is smaller than that of the first sound board 1 at the corresponding position of the third groove 16, and smooth transition surfaces are arranged between the two ends of the third groove 16 and the inner wall of the first sound board 1 (see fig. 3). The length of the fourth groove 17 is smaller than that of the first sound-loading plate 1 at the corresponding position of the fourth groove 17, and smooth transition surfaces are arranged between the two ends of the fourth groove 17 and the inner wall of the first sound-loading plate 1 (see figure 3).

Two second upper sound beams 12 (see fig. 1 and 2) are arranged in the resonance box, the second upper sound beams 12 are arc-shaped long-strip-shaped sound beam members (see fig. 12 and 13), the side parts of the two second upper sound beams 12 are closely fixed on the inner wall of the second upper sound board 2 (see fig. 2), the length direction of the two second upper sound beams 12 is consistent with the length direction of the arc-shaped hollow box body (see fig. 1), and the two second upper sound beams 12 are parallel and parallel in the transverse direction of the second upper sound board 2 and are separated by a certain distance (see fig. 1). A second upper bridge opening 24 (see fig. 12) is formed in the second upper sound beam 12, the second upper bridge opening 24 is a hole at one side of the second upper sound beam 12 and enables the second upper sound beam 12 to form an upper bridge type sound beam structure, and the second upper bridge opening 24 is erected on the fifth groove 18.

Three fifth grooves 18 (see fig. 1) are arranged on the inner wall of the second sound-loading plate 2, the three fifth grooves 18 are all opened along the transverse direction of the second sound-loading plate 2, and the three fifth grooves 18 are arranged at intervals in the length direction of the arc-shaped hollow box body (see fig. 1). A sixth groove 19 (see fig. 1) is formed in the inner wall of the second sound-loading plate 2, and the sixth groove 19 is formed along the length direction of the arc-shaped hollow box body. Three fifth grooves 18 and one sixth groove 19 intersect on the inner wall of the second upper sound board 2 and penetrate each other (see fig. 3), wherein the sixth groove 19 is located at a position between the two second upper sound beams 12, and the length direction of the sixth groove 19 coincides with the length direction of the second upper sound beams 12 (see fig. 1). Three fifth grooves 18 cross the two second upper sound beams 12 on the second upper sound board 2, and form three upper lateral sound tunnels of a right half portion on the inner wall of the second upper sound board 2 (see fig. 3), and a sixth groove 19 forms an upper longitudinal sound tunnel of a right half portion on the inner wall of the second upper sound board 2 (see fig. 3).

The length of the fifth groove 18 is smaller than that of the second sound board 2 at the corresponding position of the fifth groove 18, and smooth transition surfaces are arranged between the two ends of the fifth groove 18 and the inner wall of the second sound board 2 (see figure 1). The length of the sixth groove 19 is smaller than that of the second sound-loading plate 2 at the corresponding position of the sixth groove 19, and smooth transition surfaces are arranged between the two ends of the sixth groove 19 and the inner wall of the second sound-loading plate 2 (see figure 1).

A cross-tone beam 26 (see fig. 1 and 2) is provided in the resonance box, the cross-tone beam 26 being plate-shaped (see fig. 4 and 5), the cross-tone beam 26 being supported between the first upper and lower tone plates 1, 3 and the second upper and lower tone plates 2, 3 (see fig. 2), and being positioned at the positions of the third grooves 16 and the first grooves 20 and the fifth grooves 18 and the first grooves 20 (see fig. 1). The transom beam 26 is bilaterally symmetrical with respect to the central plane of the semicircular hollow cavity, wherein the top of the transom beam 26 is fixedly connected with the first upper sound board 1 at the left half position, and the bottom of the transom beam 26 is fixedly connected with the lower sound board 3 (see fig. 2). In the right half position, the top of the cross-beam 26 is fixedly connected to the second upper sound board 2, and the bottom of the cross-beam 26 is fixedly connected to the lower sound board 3 (see fig. 2). The center of the transom beam 26 is provided with a through hole 27 (see fig. 2 and 4). The transonic beam 26 is provided with an avoiding opening 28 (see fig. 4) at a position corresponding to the first and/or second upper sound beams 11, 12. The cross sound beam 26 is provided with first notches 29 (see fig. 4) on the side edges corresponding to the first upper sound board 1 or/and the second upper sound board 2, and first holes 31 (see fig. 2) are formed between the first notches 29 and the inner wall of the first upper sound board 1 or the second upper sound board 2 in the assembled state. The cross-tone beam 26 is provided with a second notch 30 (see fig. 4) on a side edge corresponding to the lower tone plate 3, and a second hole 32 (see fig. 2) is formed between the second notch 30 and the inner wall of the lower tone plate 3 in the assembled state.

A first reinforcing plate 14 is arranged between the two first upper sound beams 11 in a fixed manner (see fig. 2). A second reinforcing plate 15 (see fig. 2) is fixed between the two second upper sound beams 12. The third groove 16, the fourth groove 17, the fifth groove 18, the sixth groove 19, the first groove 20 and the second groove 21 are all arc-shaped grooves (see fig. 3).

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 11 are juxtaposed in parallel (see fig. 2). The two second upper sound beams 12 are juxtaposed in parallel (see fig. 1). The two bottom beams 13 are parallel and parallel (see fig. 2). However, the present invention is not limited to this, and the two first upper sound beams 11 need not be parallel, and the two second upper sound beams 12 and the two lower sound beams 13 need not be parallel, but the parallel arrangement is optimal, which is easily understood and accepted by those skilled in the art.

2. In the above embodiments, the lower sound board 3, the first upper sound board 1 and the second upper sound board 2 are all provided with a double-sound-beam structure on the inner wall thereof and are all provided with grooves. However, the present invention is not limited to this, and the measures such as the beams and the grooves that are adopted on the inner walls of the first and second sound boards 1 and 2 may be cancelled or changed to other structural forms, and it is also possible to only keep the technical measures set on the inner wall of the sound board 3, which is only slightly inferior in effect. The lower tone plate 3 is more important than the first and second upper tone plates 1, 2 for an konghou resonator. The reason is that the lower sound board 3 is attached to the strings, while the first and second upper sound boards 1 and 2 are not directly associated with the strings, as will be readily understood by those skilled in the art.

3. In the above embodiment, the double tone beam structure is provided on the inner walls of the lower tone plate 3, the first upper tone plate 1, and the second upper tone plate 2. However, the present invention is not limited to this, and the two bottom sound beams 13 may be changed from the form to the use of four bottom sound beams 13 in parallel. For the present invention, the four bottom beams 13 and the two bottom beams 13 are different in number and form, but are identical in nature. Assuming that two outer sound beams of the four lower sound beams 13 are close to two inner sound beams, the two outer sound beams can be equivalent to a double sound beam. It is therefore believed that such a change does not bring about an unexpected effect and should be understood to be substantially equivalent. Likewise, the structure of the double tone beam on the first and second tone plates 1 and 2 should also include such a variation. The utility model discloses well two sound roof beams include the meaning of even number sound roof beam symmetrical arrangement, therefore six sound roof beam symmetrical arrangement are also the utility model discloses equate the variation. As will be readily understood by those skilled in the art.

4. In the above embodiment, three first grooves 20 (see fig. 3) are provided on the inner wall of the lower sound board 3, three third grooves 16 (see fig. 3) are provided on the inner wall of the first upper sound board 1, and three fifth grooves 18 (see fig. 1) are provided on the inner wall of the second upper sound board 2. However, the present invention is not limited thereto, and the number of the first groove 20, the third groove 16, and the fifth groove 18 may be one, two, four, or five, etc. Such variations may be determined on an as-is basis. The number of the first trenches 20, the third trenches 16 and the fifth trenches 18 is at least one in nature.

5. In the above embodiment, the cross-sound beam 26 provided in the resonance box is bilaterally symmetrical with respect to the center plane of the second groove 21 (see fig. 2). However, the present invention is not limited to this, and two transom beams 26 may be combined into an integral structure, that is, the middle portions of the two transom beams 26 in fig. 2 are connected together as an integral transom beam 26. The transom beam 26 in the above embodiment is realized by being divided into two parts, i.e., a left part and a right part. As would be readily understood and accepted by those skilled in the art.

6. In the above embodiment, the first upper tuning beam 11 is provided with the first upper bridge opening 23, the second upper tuning beam 12 is provided with the second upper bridge opening 24, and the lower tuning beam 13 is provided with the lower bridge opening 25. However, the present invention is not limited to this, and the first upper bridge opening 23 may not be provided, and the second upper bridge opening 24 and the lower bridge opening 25 may not be provided, and even the bridge opening is provided only on one or both of the first upper tone beam 11, the second upper tone beam 12, and the lower tone beam 13. This is a variation that is readily understood and accepted by those skilled in the art.

7. In the above embodiment, the first reinforcing plate 14 (see fig. 2) is fixed between the two first upper sound beams 11, and the second reinforcing plate 15 (see fig. 2) is fixed between the two second upper sound beams 12. However, the present invention is not limited to this, and the two first upper sound beams 11 may be suspended in the resonator without providing the first reinforcing plate 14. Similarly, the two second top beams 12 may be suspended in the resonance box without the second reinforcing plate 15.

8. In the above embodiments, the third grooves 16 to the second grooves 21 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 one skilled in the art.

9. In the above embodiment, the two first upper sound beams 11 have the same shape and size (see fig. 10), the two second upper sound beams 12 have the same shape and size (see fig. 12), and the two lower sound beams 13 have the same shape and size (see fig. 8). However, the present invention is not limited to this, the shape and the size of the two first beams 11 can be different, the shape and the size of the two second beams 12 can be different, and the shape and the size of the two beams 13 can be different. 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.

10. In the above embodiment, the resonance box (sound box) of an konghou is an arc-shaped hollow box (see fig. 1) composed of a first upper soundboard 1, a second upper soundboard 2, a lower soundboard 3, a first upper frame plate 4, a second upper frame plate 5, a first lower frame plate 6, and a second lower frame plate 7 (see fig. 3), wherein the first upper frame plate 4 and the second upper frame plate 5 serve as support frames at the center of the top of the resonance box, and the first lower frame plate 6 and the second lower frame plate 7 serve as support frames at both sides of the bottom of the resonance box (see fig. 2 and 3). However, the utility model discloses be not limited to this, can not have the supporting framework of top central authorities and the supporting framework of bottom both sides, and directly with the resonant tank (audio amplifier) of soundboard 1, second soundboard 2 and the soundboard 3 amalgamation one-tenth konghou down, nevertheless in the above embodiment, the supporting framework who adopts top central authorities and the supporting framework of bottom both sides are the best design. As would be readily understood and accepted by those skilled in the art.

11. Because the utility model discloses an innovation is all concentrated on the resonator, therefore this embodiment will focus on describing the structure and the structure of an konghou resonator, and other structures can be considered to adopt prior art to realize, and the konghou that describes in this embodiment begins does not do as the other structures except that the resonator of the konghou the utility model discloses a restriction.

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

Claims (6)

1. The utility model provides a take sound tunnel konghou, includes the resonance box, and this resonance box is arc cavity box, and this arc cavity box mainly is gone up soundboard (2) and lower soundboard (3) amalgamation by first soundboard (1), second and forms, the cross section of arc cavity box is semi-circular cavity in to the central point of semi-circular cavity is first goes up soundboard (1) and is located upper left side and forms the circular arc top of half a left side as the benchmark, and soundboard (2) are located upper right side and form the circular arc top of half a right side on the second, and soundboard (3) are located the bottom of below and formation lower part down, its characterized in that:

a first groove (20) is formed in the inner wall of the lower sound board (3), and the first groove (20) is formed in the transverse direction of the lower sound board (3); a second groove (21) is formed in the inner wall of the lower sound board (3), and the second groove (21) is formed in the length direction of the arc-shaped hollow box body; the first groove (20) and the second groove (21) are arranged on the inner wall of the lower sound board (3) in a crossed mode and penetrate through each other, wherein the second groove (21) is located at a position between the two lower sound beams (13), and the length direction of the second groove (21) is consistent with the length direction of the lower sound beams (13); the first groove (20) transversely crosses two lower sound beams (13) on the lower sound board (3), a lower transverse sound tunnel is formed on the inner wall of the lower sound board (3), and the second groove (21) forms a lower longitudinal sound tunnel on the inner wall of the lower sound board (3).

2. The konghou of claim 1, wherein: a third groove (16) is formed in the inner wall of the first upper sound board (1), and the third groove (16) is formed in the transverse direction of the first upper sound board (1); a fourth groove (17) is formed in the inner wall of the first upper sound board (1), and the fourth groove (17) is formed in the length direction of the arc-shaped hollow box body; the third grooves (16) and the fourth grooves (17) are arranged on the inner wall of the first upper sound board (1) in a crossed mode and penetrate through each other, wherein the fourth grooves (17) are located between the two first upper sound beams (11), and the length direction of the fourth grooves (17) is consistent with the length direction of the first upper sound beams (11); the third groove (16) transversely crosses two first upper sound beams (11) on the first upper sound board (1), an upper transverse sound tunnel of the left half part is formed on the inner wall of the first upper sound board (1), and an upper longitudinal sound tunnel of the left half part is formed on the inner wall of the first upper sound board (1) by the fourth groove (17);

a fifth groove (18) is formed in the inner wall of the second upper sound board (2), and the fifth groove (18) is formed in the transverse direction of the second upper sound board (2); a sixth groove (19) is formed in the inner wall of the second upper sound board (2), and the sixth groove (19) is formed in the length direction of the arc-shaped hollow box body; a fifth groove (18) and a sixth groove (19) are arranged on the inner wall of the second upper sound board (2) in a crossed mode and penetrate through each other, wherein the sixth groove (19) is located at a position between the two second upper sound beams (12), and the length direction of the sixth groove (19) is consistent with the length direction of the second upper sound beams (12); the fifth groove (18) transversely crosses the two second upper sound beams (12) on the second upper sound board (2), and forms an upper transverse sound tunnel of a right half part on the inner wall of the second upper sound board (2), and the sixth groove (19) forms an upper longitudinal sound tunnel of a right half part on the inner wall of the second upper sound board (2).

3. The konghou of claim 1, wherein: the length of the first groove (20) is smaller than that of the lower sound board (3) at the position corresponding to the first groove (20), and smooth transition surfaces are arranged between the two ends of the first groove (20) and the inner wall of the lower sound board (3); the length of the second groove (21) is smaller than that of the lower sound board (3) at the corresponding position of the second groove (21), and smooth transition surfaces are arranged between the two ends of the second groove (21) and the inner wall of the lower sound board (3).

4. The konghou of claim 2, wherein: the length of the third groove (16) is smaller than that of the first sound-loading plate (1) at the position corresponding to the third groove (16), and smooth transition surfaces are arranged between the two ends of the third groove (16) and the inner wall of the first sound-loading plate (1); the length of the fourth groove (17) is smaller than that of the first sound board (1) at the corresponding position of the fourth groove (17), and smooth transition surfaces are arranged between the two ends of the fourth groove (17) and the inner wall of the first sound board (1).

5. The konghou of claim 2, wherein: the length of the fifth groove (18) is smaller than that of the second sound-loading plate (2) at the position corresponding to the fifth groove (18), and smooth transition surfaces are arranged between the two ends of the fifth groove (18) and the inner wall of the second sound-loading plate (2); the length of the sixth groove (19) is smaller than that of the second upper sound board (2) at the position corresponding to the sixth groove (19), and smooth transition surfaces are arranged between the two ends of the sixth groove (19) and the inner wall of the second upper sound board (2).

6. The konghou of claim 2, wherein: the first groove (20), the second groove (21), the third groove (16), the fourth groove (17), the fifth groove (18) and the sixth groove (19) are all arc-shaped grooves.

Images