CN212541878U - Double-sound beam ancient lyre - Google Patents

Abstract

The utility model provides a two sound roof beam guqin, includes the resonant tank, and this resonant tank is formed by panel and bottom plate amalgamation, its characterized in that: two upper sound beams are fixedly arranged on the inner wall of the panel in parallel; two lower sound beams are fixedly arranged on the inner wall of the bottom plate in parallel; an upper Feng-shaped groove is formed in the inner wall of the panel to form an upper Feng-shaped sound tunnel; a lower Feng-shaped groove is formed in the inner wall of the bottom plate to form a lower Feng-shaped sound tunnel; six transom beams are fixedly arranged between the panel and the bottom plate, three of the transom beams are arranged on the left half groove body position of the 'feng' shaped groove, and three of the transom beams are arranged on the right half groove body position of the 'feng' shaped groove. The constraint of the traditional design of the internal structure of the guqin resonator in the past is broken through by the scheme, a new improved design scheme is provided by the big container, and the problems that only string sound does not have musical instrument sound, the resonance effect is poor, the penetrating power is insufficient and the sound volume is small when the guqin is played in the past are solved.

Description

Double-sound beam ancient lyre

Technical Field

The utility model relates to a chinese tradition plucks musical instrument, in particular to two sound roof beam guqin.

Background

The ancient lyre, also called yao lyre, yu lyre or qin lyre, is a traditional Chinese plucked string instrument, has a history of more than three thousand years and belongs to a string in eight tones. The ancient lyre has wide range of sound, deep timbre and long lingering sound. 11/7/2003, the world heritage committee of the national academy of education announced that the chinese guqin was selected as the world cultural heritage. Listed in the Chinese non-material culture heritage list in 2006.

The guqin is a long and narrow wood stringed instrument, and generally comprises a surface, strings, a hui, a Yueshan, a fly head, a bottom, a dragon pool, a marsh, goose feet, a tuning peg pool, a tuning peg and the like. The ancient lyre style which is popular nowadays is basically shaped in the last year of eastern Han dynasty, and the shape system is as follows: the body is usually about 120 cm long, about 20 cm wide and about 6 cm thick, and is composed of a base plate and a face plate, so-called jatropha curcas. Gouging out the piano surface by tung wood or fir wood, gouging out the piano surface into an arc of about 60 degrees, and gouging out the piano surface into a groove abdomen; then a flat catalpa wood, a mahogany, alder or other miscellaneous trees are used as a base plate, the piano surface and the base plate are glued together to form a resonance box, then various accessories are installed, the resonance box is polished and formed, a layer of hard and heavy lacquer ash is coated, the resonance box is thoroughly dried and polished, and the lacquer coat is a thin lacquer coat, thus obtaining the traditional ancient lyre.

The gamut of the guqin is four octaves and two tones. Seven scattered tones, ninety one overtone and one hundred forty-seven every cent are included. The sound of the guqin is very unique, and a person listening to the guqin can feel the silence of the guqin. The scattered sound, overtone and pressing sound are quite quiet, wherein the scattered sound is loose and deep and is in a wide range, so that people can feel ancient; the overtones are like sounds of nature, so that the sense of cool-clear going into the immortal is provided; the sound is rich when pressed, and the pronunciation monkey lingering and subtle under the fingers can be interacted with each other like the human speech, and the floating grains are changeable like the mood of the human mind.

The resonating box of the guqin is mainly formed by splicing a panel 1 and a bottom plate 2 (see fig. 3 and 4), the bottom plate 2 is generally flat, a dragon pond 3 and a phoenix marsh 4 (see fig. 1 and 2) are arranged on the bottom plate 2, the panel 1 is in an arch shape, sound beams 5 (see fig. 4-6) are respectively arranged on the inner wall of the panel 1 corresponding to the dragon pond 3 and the phoenix marsh 4, and the two sound beams 5 are fixed on the inner wall of the panel 1. The biggest defects of the existing guqin are poor penetration force and small volume, and the guqin only has the sound of string vibration and hardly has the sound of qin vibration during playing, so that the sound effect can be achieved only by means of a microphone and a loudspeaker in a concert hall. The reason is that the resonating box of guqin is unreasonable in the design, is unfavorable for the performance from the high pitch district to good sound wave sympathetic response and vibration between the bass district, so only string sound does not have the musical instrument sound when guqin is played, even the audience sits and also listens the sound of guqin in first row.

In view of this, how to improve the resonator of the existing guqin is the subject of the present invention, which is to improve the penetrating power and the volume while maintaining the original tone.

Disclosure of Invention

The utility model provides a two-tone beam guqin, its purpose is to solve the current guqin resonating box sympathetic response effect poor, pierce through poor, the volume of giving off too little problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a two sound roof beam guqin, includes the resonant tank, and the box of this resonant tank is formed by panel and bottom plate amalgamation, is equipped with dragon pond and phoenix marsh on the bottom plate, and its innovation lies in:

two upper sound beams are arranged in the resonator, the upper sound beams are long-strip-shaped sound beam components, one sides of the two upper sound beams are tightly attached and fixed to the inner wall of the panel, the other sides of the two upper sound beams are suspended in the resonator relative to the bottom plate, the length directions of the two upper sound beams are consistent with the length direction of the resonator, and the two upper sound beams are parallel and separated by a certain distance in the width direction of the resonator.

A first groove is formed in the inner wall of the panel and is formed in the width direction of the resonator; a second groove is formed in the inner wall of the panel and is formed in the length direction of the resonator; the first grooves and the second grooves are arranged on the inner wall of the panel in a crossed mode and are communicated with each other, the second grooves are located between the two upper sound beams, and the length direction of the second grooves is consistent with that of the upper sound beams; two last sound roof beams are transversely striden to first slot in the width direction of resonant tank to horizontal sound tunnel is formed on the inner wall of panel, and vertical sound tunnel is formed on the inner wall of panel to the second slot.

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

1. in the above scheme, the theme is a guqin, and the innovation point is concentrated on a resonator of the guqin, so that strings, lyre emblems, Yueshan, fly heads, goose feet, tuning peg pools, guard pegs and the like outside the resonator are not described. It can be considered that the utility model discloses except that the resonance box other structures in the guqin adopt prior art to realize.

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

3. In the above scheme, two lower sound beams can be arranged in the resonator, the lower sound beams are long-strip-shaped sound beam components, one sides of the two lower sound beams are tightly attached and fixed on the inner wall of the bottom plate, the other sides of the two lower sound beams are suspended in the resonator relative to the panel, the length directions of the two lower sound beams are consistent with the length direction of the resonator, and the two lower sound beams are seen in parallel and separated by a certain distance in the width direction of the resonator.

A third groove is formed in the inner wall of the bottom plate and is formed in the width direction of the resonator; a fourth groove is formed in the inner wall of the bottom plate and is formed in the length direction of the resonator; the third groove and the fourth groove are arranged on the inner wall of the bottom plate in a crossed mode and are communicated with each other, the fourth groove is located between the two lower sound beams, and the length direction of the fourth groove is consistent with that of the lower sound beams; the third slot transversely strides two lower sound beams in the width direction of the resonator, and forms a lower transverse sound tunnel on the inner wall of the bottom plate, and the fourth slot forms a lower longitudinal sound tunnel on the inner wall of the bottom plate.

4. In the above scheme, a transom beam is arranged in the resonator, the transom beam is in a plate shape, the transom beam is arranged at the position of the first groove and is in bilateral symmetry with the central plane of the second groove as a reference, the top of the transom beam is fixedly connected with the panel, the bottom of the transom beam is fixedly connected with the bottom plate, and the side part of the transom beam is fixedly connected with the side plate of the corresponding side.

5. In the above scheme, an upper bridge opening can be arranged on the upper sound beam, the upper bridge opening is a gap on one side of the upper sound beam and enables the upper sound beam to form an upper bridge type sound beam structure, and the upper bridge opening is erected on the first groove. The lower sound beam is provided with a lower bridge opening, the lower bridge opening is a hole gap on one side of the lower sound beam, the lower sound beam forms a lower bridge type sound beam structure, and the lower bridge opening is erected on the third groove.

6. In the above scheme, an upper reinforcing plate can be arranged on the fixing frame between the two upper sound beams, and a lower reinforcing plate can also be arranged on the fixing frame between the two lower sound beams.

7. In the above scheme, the transom beam is arranged in the resonator in the transverse direction, and the center of the transom beam is provided with the through hole. A first round notch is arranged on the connecting side of the transom beam and the panel, and a first crescent moon hole is formed between the first round notch and the inner wall of the panel in an assembly state; and a second round notch is arranged on the connecting side edge of the transom beam and the bottom plate, and a second bud hole is formed between the second round notch and the inner wall of the bottom plate in an assembly state.

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

The design principle and the conception of the utility model are as follows: in the case of a guqin, there are many factors that affect the penetration, volume and sound effect of the guqin, such as the material, thickness and internal structure of the resonance box. The utility model discloses a solve the current ancient musical instrument resonant tank sympathetic response effect poor, the penetrating power is not enough, the problem that the volume is little, mainly follow the angle of resonant tank internal construction and carried out thorough improvement to it. The concrete aspects are as follows: firstly, two sound beams arranged in front and at the back of the inner wall of the original panel are eliminated, and two upper sound beams are fixedly arranged on the inner wall of the panel in parallel; secondly, offer the slot (namely first slot and second slot) on the panel inner wall, this slot forms horizontal sound tunnel and last vertical sound tunnel on the inner wall of panel. The utility model discloses to the problem that the resonating effect of guqin resonant tank is poor, the penetrating power is not enough, the volume is little, carried out deep discussion and research to the resonant tank structure and the vocal mechanism of guqin, only the string sound does not have the leading cause of musical instrument sound when having found out guqin and playing is that the resonant tank design is unreasonable, can not exert good sound wave when leading to playing and sympathetic response and vibration are sent. In view of the above, the inventor has broken the constraint of traditional resonating box design of guqin in the past, and the bold is proposed the utility model discloses an improve design, solved guqin sympathetic response effect poor, the penetrating power, the little problem of volume from the angle of vibration, sympathetic response, sound production, 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 scheme, the utility model discloses compare with current guqin resonating box and have following advantage and effect (promptly with best mode the utility model discloses the content of embodiment explains):

1. the utility model discloses all be provided with two sound beam structures at panel and bottom plate central authorities (set up two on the panel inner wall side by side promptly and go up the sound roof beam, set up two lower sound roof beams on the bottom plate inner wall side by side), because the relative high pitch amplitude of bass is big, the frequency is low, the bass sympathetic response is concentrated on the central zone of resonant tank, the high pitch sympathetic response is concentrated on the peripheral edge region all around of resonant tank, panel and bottom plate central zone intensity has been strengthened, to improving bass district tone quality, penetrating power and volume have played the important function. Because the thickness of the panel and the bottom plate is a thickness gradient structure with thick central area and thin periphery, the strength of the central area of the panel and the bottom plate is enhanced, the thickness difference between the central area of the resonance box and the peripheral area is relatively changed, the sound quality, the penetrating power and the sound volume of a high-sound area are improved, the resonance box is favorable for playing a resonance effect from the angles of vibration, resonance and sound production, the sound quality is improved, the penetrating power is improved, and larger sound volume is emitted.

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

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

4. The utility model discloses a design of horizontal sound roof beam, eight sympathetic response regions are cut apart into with the space that panel inner wall corresponds to three horizontal sound roof beams of group and two last sound roof beam combinations under the resonator overlook state, and simultaneously, eight sympathetic response regions are cut apart into with the space that bottom plate inner wall corresponds to three horizontal sound roof beams of group and two lower sound roof beam combinations, and sixteen sympathetic response regions count altogether. The cross central zone of sound tunnel is transmitted earlier in the string vibration when the guqin is played, then transmits to these sixteen sympathetic response regions through the sound tunnel to produce sympathetic response and vibration, be the resonance sound of resonant tank with this string sound amplification. Before improving, the guqin can only produce three sound wave volume when playing, the resonant tank of guqin only has a sympathetic response region promptly, and a sympathetic response region produces a sound wave volume, adds a string wave volume, and in addition a percussion wave volume counts three sound wave volume altogether. And after improving the utility model discloses eighteen sound wave volume can be produced when the guqin is played, wherein, sixteen sympathetic response regions produce sixteen sound wave volume, in addition a string wave volume, in addition a percussion wave volume, total eighteen sound wave volume. The sound wave quantity, i.e., the number of sound waves, for a specific resonance box for plucked instrument to be refined depends mainly on the number of resonance regions in the resonance box, in addition to one sound wave quantity and one percussion wave quantity, and in general, the instrument produces one sound wave quantity per resonance region during playing, and how many resonance regions produce how many sound wave quantities. In addition, the sound volume directly affects the timbre, penetration and volume of the instrument. Therefore the utility model relates to a can obviously improve the tone quality in high-pitched sound district and bass district, increase the penetrating power and the volume in high-pitched sound district and bass district.

5. The utility model discloses through-hole on the transom beam and the moon hole between panel and the bottom plate are the passageway between each sympathetic response region in the resonant tank, and this kind of passageway design does benefit to mutual transmission sound wave, sympathetic response and vibration.

6. The utility model discloses fixed erection has the reinforcing plate between two last sound roof beams, the reinforcing plate is established down to the mount between two lower sound roof beams, its effect can increase panel and bottom plate middle part region firstly, especially go up between the sound roof beam and the intensity between the lower sound roof beam, secondly can increase two and go up the sound roof beam and two load when the lower sound roof beam produces the sympathetic response, the tone quality in bass district has further been improved, the penetrating power has been improved, the volume has been increased, on the other hand the central zone of resonant tank has been strengthened, relatively speaking also pull open with the regional intensity gap of resonant tank all around edge, also be favorable to improving the tone quality in high-pitched district, improve penetrating power and volume.

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

The above advantages and effects are all explained in an optimum manner. It should be particularly emphasized that the provision of the beam structure and the grooves on the inner wall of the panel is more important than the equivalent provision on the inner wall of the base plate, and the effect and effect are relatively better. The reason is that the strings are arranged on the panel, and the bottom plate is not directly connected with the strings. It is therefore the solution to set up the two sound beam structures on the panel inner wall and set up the slot the utility model discloses technical problem's key, and it is right to set up the two sound beam structures on the bottom plate inner wall and set up the slot the utility model discloses it is better to add the flower, and this is that technical staff in the field understands easily.

Drawings

FIG. 1 is a front view of a conventional seven-stringed plucked instrument resonator;

FIG. 2 is a bottom view of a conventional seven-stringed plucked instrument resonator;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a cross-sectional view B-B of FIG. 1;

FIG. 5 is a front view of a sound beam in a conventional ancient musical instrument resonance box;

FIG. 6 is a left view of a sound beam in a conventional ancient musical instrument resonance box;

FIG. 7 is a schematic view of a front view structure of a resonator of a guqin according to an embodiment of the present invention;

FIG. 8 is a front view of the inner wall of the faceplate of the resonating box of the guqin according to the embodiment of the present invention;

FIG. 9 is a front view of the inner wall of the bottom plate of the resonating box of the guqin according to the embodiment of the present invention;

FIG. 10 is a front view of the upper sound beam of the seven-stringed plucked instrument in accordance with the embodiment of the present invention;

FIG. 11 is a left side view of the upper sound beam of the seven-stringed plucked instrument in accordance with the embodiment of the present invention;

FIG. 12 is a front view of a lower sound beam of the seven-stringed plucked instrument in accordance with the embodiment of the present invention;

FIG. 13 is a left side view of a lower sound beam of the seven-stringed plucked instrument in accordance with the embodiment of the present invention;

FIG. 14 is a cross-sectional view C-C of FIG. 7;

fig. 15 is a sectional view of the resonator housing of fig. 14 with internal structural parts removed;

FIG. 16 is a front view of a transom beam of the seven-stringed plucked instrument in accordance with the embodiment of the present invention;

figure 17 is the utility model discloses a horizontal sound roof beam left side view of guqin.

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

Detailed Description

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

example (b): double-sound beam ancient lyre

The guqin comprises a resonance box, strings, a qin badge, a Yueshan, a fly head, wild goose feet, a tuner board pool, a tuner board and the like. Because the utility model discloses an innovation is all concentrated on the resonant tank, consequently this embodiment will focus on describing the structure and the structure of guqin resonant tank, and structure such as string, musical instrument badge, mountain, fly head, wild goose foot, cross the board pond, the book of the wing board can be considered to adopt prior art to realize, does not make detailed introduction in this embodiment again.

The structure and the structure of the guqin resonance box of the embodiment are as follows: as shown in fig. 7-17, the box body of the resonance box is formed by splicing a panel 1 and a bottom plate 2 (see fig. 15), and a dragon pool 3 and a phoenix marsh 4 are arranged on the bottom plate 2.

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

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

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

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

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

The 'feng' shaped groove on the inner wall of the panel 1 corresponds to the 'feng' shaped groove on the inner wall of the bottom plate 2 in position in the height direction of the resonance box. A transom beam 16 (see fig. 8) is respectively arranged at six positions of the three horizontal left half parts and the three horizontal right half parts in the V-shaped groove, and the six transom beams 16 are all plate-shaped (see fig. 16 and 17), wherein the top of each transom beam 16 is fixedly connected with the panel 1, and the bottom of each transom beam 16 is fixedly connected with the bottom plate 2 (see fig. 14). The transom beam 16 is disposed in the resonator in the lateral direction, and a through hole 23 is opened in the center of the transom beam 16 (see fig. 16). The side of the transom beam 16 connected to the panel 1 is provided with a first circular notch 19 (see fig. 16), and a first crescent hole 20 (see fig. 14) is formed between the first circular notch 19 and the inner wall of the panel 1 in an assembled state. A second round notch 21 (see fig. 16) is arranged on the connecting side of the transom beam 16 and the bottom plate 2, and a second bud hole 22 (see fig. 14) is formed between the second round notch 21 and the inner wall of the bottom plate 2 in an assembling state.

An upper reinforcing plate 17 (see fig. 8 and 14) may be fixedly arranged between the two upper sound beams 6, and a lower reinforcing plate 18 (see fig. 9 and 14) may be fixedly arranged between the two lower sound beams 7. The first groove 8, the second groove 9, the third groove 10 and the fourth groove 11 are preferably arc-shaped grooves.

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

1. in the above embodiment, the two upper sound beams 6 are juxtaposed in parallel as viewed in the width direction of the resonance box (see fig. 14). The two bottom sound beams 7 are parallel and parallel (see fig. 14). However, the present invention is not limited thereto, and the two upper sound beams 6 need not be parallel, and the two lower sound beams 7 need not be parallel, but the parallel arrangement is preferably, as will be understood and accepted by those skilled in the art.

2. In the above embodiments, the inner walls of the panel 1 and the bottom plate 2 are both provided with the dual-sound beam structure and are both provided with the grooves. However, the present invention is not limited to this, and the measures such as the beam and the groove that are adopted on the inner wall of the bottom plate 2 can be cancelled or changed into other structural forms, and only the technical measures that are set on the inner wall of the panel 1 are kept are also feasible, and only the effect is slightly poor. The panel 1 is more important than the sole plate 2 for a guqin resonance box. 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 embodiments, the dual sound beam structure is disposed on the inner walls of the panel 1 and the bottom plate 2. That is, two upper sound beams 6 are provided on the panel 1, and two lower sound beams 7 are provided on the bottom plate 2. However, the present invention is not limited to this, and the two beams 6 can be changed from the form to four beams 6 for parallel use. For the present invention, the four upper sound beams 6 and the two upper sound beams 6 are different in number and form, but are identical in nature. Assuming that two outer sound beams of the four upper sound beams 6 are close to two inner sound beams, the two outer sound beams can be equivalent to a double sound beam. It is therefore believed that such a change does not bring about an unexpected effect and should be understood to be substantially equivalent. Similarly, the structure of the dual tone beam on the base plate 2 should also include such variations. The utility model discloses well two sound roof beams include the meaning of even number sound roof beam symmetrical arrangement, therefore six sound roof beam symmetrical arrangement are also the utility model discloses equate the variation. As will be readily understood by those skilled in the art.

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

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

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

7. In the above embodiment, the upper reinforcing plate 17 (see fig. 8 and 14) is fixed between the two upper sound beams 6, and the lower reinforcing plate 18 (see fig. 9 and 14) is fixed between the two lower sound beams 7. However, the present invention is not limited to this, and the two upper sound beams 6 may be suspended in the resonator without providing the upper reinforcing plate 17. Similarly, the two lower sound beams 7 may be suspended in the resonance box without the lower reinforcing plate 18. The upper and lower reinforcing plates 17 and 18 can increase the strength of the middle regions of the front and rear panels, particularly between the upper and lower sound beams, and can increase the load when the two upper and lower sound beams resonate.

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

9. In the above embodiment, the two lower sound beams 7 and the two upper sound beams 6 are arranged in correspondence with each other in the up-down direction as viewed from the cross section of the resonance box (see fig. 14). However, the present invention is not limited to this, and the alignment arrangement may be performed in a non-aligned manner, but the alignment arrangement is most effective. As would be readily understood and accepted by those skilled in the art.

10. In the above embodiment, the two upper sound beams 6 are the same in shape and size (see fig. 10). The two bottom sound beams 7 are identical in shape and size (see fig. 12). However, the present invention is not limited to this, and the shape and the size of the two upper sound beams 6 may not be the same, and the shape and the size of the two lower sound beams 7 may not be the same. The sound quality can be determined according to the tone color and tone quality of the resonance box. As would be readily understood and accepted by those skilled in the art.

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

Claims (10)

1. The utility model provides a two sound roof beam guqin, includes the resonant tank, and the box of this resonant tank is formed by panel (1) and bottom plate (2) amalgamation, is equipped with dragon pond (3) and phoenix marsh (4) on bottom plate (2), its characterized in that:

two upper sound beams (6) are arranged in the resonator, the upper sound beams (6) are long-strip-shaped sound beam components, one sides of the two upper sound beams (6) are tightly attached and fixed on the inner wall of the panel (1), the other sides of the two upper sound beams (6) are suspended in the resonator relative to the bottom plate (2), the length directions of the two upper sound beams (6) are consistent with the length direction of the resonator, and the two upper sound beams (6) are parallel and separated by a certain distance when viewed in the width direction of the resonator;

a first groove (8) is formed in the inner wall of the panel (1), and the first groove (8) is formed in the width direction of the resonator; a second groove (9) is formed in the inner wall of the panel (1), and the second groove (9) is formed in the length direction of the resonator; 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, the second groove (9) is located between the two upper sound beams (6), and the length direction of the second groove (9) is consistent with that of the upper sound beams (6); the first groove (8) stretches across the two upper sound beams (6) in the width direction of the resonator, an upper transverse sound tunnel is formed on the inner wall of the panel (1), and the second groove (9) forms an upper longitudinal sound tunnel on the inner wall of the panel (1).

2. The guqin according to claim 1, wherein: two lower sound beams (7) are arranged in the resonator, the lower sound beams (7) are long-strip-shaped sound beam components, one sides of the two lower sound beams (7) are tightly attached and fixed on the inner wall of the bottom plate (2), the other sides of the two lower sound beams (7) are suspended in the resonator relative to the panel (1), the length directions of the two lower sound beams (7) are consistent with the length direction of the resonator, and the two lower sound beams (7) are parallel and are separated by a certain distance when viewed in the width direction of the resonator;

a third groove (10) is formed in the inner wall of the bottom plate (2), and the third groove (10) is formed in the width direction of the resonator; a fourth groove (11) is formed in the inner wall of the bottom plate (2), and the fourth groove (11) is formed in the length direction of the resonator; the third grooves (10) and the fourth grooves (11) are arranged on the inner wall of the bottom plate (2) in a crossed mode and are communicated with each other, the fourth grooves (11) are located between the two lower sound beams (7), and the length direction of the fourth grooves (11) is consistent with the length direction of the lower sound beams (7); the third groove (10) stretches across two lower sound beams (7) in the width direction of the resonator, a lower transverse sound tunnel is formed on the inner wall of the bottom plate (2), and a lower longitudinal sound tunnel is formed on the inner wall of the bottom plate (2) by the fourth groove (11).

3. The guqin according to claim 1, wherein: the sound box is characterized in that a transom beam (16) is arranged in the sound box, the transom beam (16) is in a plate shape, the transom beam (16) is arranged at the position of the first groove (8) and is bilaterally symmetrical by taking the central plane of the second groove (9) as a reference, the top of the transom beam (16) is fixedly connected with the panel (1), the bottom of the transom beam (16) is fixedly connected with the bottom plate (2), and the side part of the transom beam (16) is fixedly connected with the side plate at the corresponding side.

4. The guqin according to claim 2, wherein: an upper bridge opening (12) is formed in the upper sound beam (6), the upper bridge opening (12) is a hole gap on one side of the upper sound beam (6) and enables the upper sound beam (6) to form an upper bridge type sound beam structure, and the upper bridge opening (12) is erected on the first groove (8);

and a lower bridge opening (13) is formed in the lower sound beam (7), the lower bridge opening (13) is in a hole gap at one side of the lower sound beam (7) and enables the lower sound beam (7) to form a lower bridge type sound beam structure, and the lower bridge opening (13) is erected on the third groove (10).

5. The guqin according to claim 2, wherein: an upper reinforcing plate (17) is arranged on the fixing frame between the two upper sound beams (6), and a lower reinforcing plate (18) is arranged on the fixing frame between the two lower sound beams (7).

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

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

8. The guqin according to claim 3, wherein: the transom beam (16) is arranged in the transverse direction in the resonance box, and a through hole (23) is formed in the center of the transom beam (16).

9. The guqin according to claim 8, wherein: a first circular notch (19) is arranged on the connecting side of the transom beam (16) and the panel (1), and a first crescent moon hole (20) is formed between the first circular notch (19) and the inner wall of the panel (1) in an assembly state; and a second round notch (21) is arranged on the connecting side edge of the transom beam (16) and the bottom plate (2), and a second February hole (22) is formed between the second round notch (21) and the inner wall of the bottom plate (2) in an assembly state.

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

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