CN213070584U - Ruan with sound beam - Google Patents

Abstract

A Ruan with a sound beam comprises a resonance box, wherein the resonance box comprises a panel, a bottom plate and side plates; the lower surface of the panel is provided with a first channel and a second channel which are crossed on the lower surface of the panel and are communicated with each other; the middle part of the lower surface of the panel is fixedly provided with an upper sound beam assembly which comprises a plurality of first strip-shaped sound beam components which are arranged on two sides of the first channel and two sides of the second channel in pairs. The utility model discloses changing into present standard vibration mode with the panel of ruan by the free vibration mode in the past, solved a ruan treble district from the angle of vibration, sympathetic response, sound production and bright not coming out, and the low range is muddy mellow and full not enough problem, practice proves that this improvement design has outstanding substantive characteristics and the technological progress that is showing to obvious technological effect has been obtained.

Description

Ruan with sound beam

Technical Field

The utility model relates to a plucked musical instrument, concretely relates to ruan with sound roof beam. Said raney includes treble raney, xiao raney, zhong raney, da raney and bass raney.

Background

Raney is a traditional chinese musical instrument and is called raney salt for short. The xi jin Ruan is good at playing the instrument, so the name is obtained. The four strings are provided with columns and are shaped like a moon piano. It is widely spread among people starting from the Tang Dynasty and the Meta Dynasty, becomes a favorite plucked instrument, and has wide range of sound and rich expressive force.

As shown in fig. 1 and 2, the ruan is composed of a headstock, a neck, a body, a peg, a jaw, a fret, a bridge, strings and the like. Wherein, the body is a oblate resonance box 20 which is formed by gluing a panel 21, a bottom plate 22 and a frame plate 23. The panel 21 is glued with a musical instrument and is provided with a sound outlet 24. There are 4 tuning pegs, and strings are usually wire strings, casing strings or metal strings.

The range of a raney is typically four and a half octaves, with the high range occupying about one quarter of the range of the raney, the mid range occupying about one half of the range of the raney, and the low range occupying about one quarter of the range of the raney. The current raney is limited by the design of the traditional sound beam, and the common problems are that: the timbre of the high-tone area and the low-tone area is not good, and the proper timbre effect of the Ruan is not exerted. The specific expression is that the high pitch area is not bright, and the low pitch area is not thick and mellow. The reason for this is that the conventional resonance box of the ruan cannot satisfy a good wide-frequency vibration from the high-pitch range to the low-pitch range, i.e., cannot simultaneously accommodate a wide-frequency variation resonance and vibration in the high-pitch range, the middle-pitch range and the low-pitch range. Further research shows that the factors influencing the broadband vibration in the resonance box are more, and the factors are mainly the design problems of the traditional sound beam except for the panel and the bottom plate. The beam 25 of the conventional resonance box 20 is not designed reasonably (as shown in fig. 3 and 4), which is not favorable for the resonance box 20 to exert good sound wave resonance and vibration from the high-pitch area to the low-pitch area. For example, the sound beam 25 is fixed to the bottom surface of the face plate 21 in the shape of a "chevron" in the resonance box 20, and does not exert a good acoustic effect.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The utility model aims at providing a ruan of voiced sound roof beam.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a Ruan with a sound beam comprises a resonance box, wherein the resonance box comprises a panel, a bottom plate and side plates;

the lower surface of the panel is provided with a first channel and a second channel, the two channels are crossed on the lower surface of the panel and are communicated with each other, and the crossed point is positioned in the center of the panel;

the middle part of the lower surface of the panel is fixedly provided with an upper sound beam assembly, the upper sound beam assembly comprises a plurality of first strip-shaped sound beam components, and the first strip-shaped sound beam components are arranged on two sides of the first channel and two sides of the second channel in pairs.

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

1. in the scheme, a third channel and a fourth channel are arranged on the upper surface of the bottom plate, the two channels are crossed on the upper surface of the bottom plate and are communicated with each other, and the cross point is positioned in the center of the bottom plate;

and the middle part of the upper surface of the bottom plate is fixedly provided with a lower sound beam assembly, the lower sound beam assembly comprises a plurality of second strip-shaped sound beam components, and the second strip-shaped sound beam components are arranged on two sides of the third channel and two sides of the fourth channel in pairs.

2. In the above scheme, an upper connecting beam is arranged between two adjacent first strip-shaped sound beam components, and the upper connecting beam spans over the first channel and the second channel to form the upper sound beam assembly in a groined shape; and each upper connecting beam is positioned in the central area of the lower surface of the panel. By this design, the central area of the panel can be reinforced.

3. In the above scheme, a lower connecting beam is arranged between two adjacent second strip-shaped sound beam components, and the lower connecting beam spans over the third channel and the fourth channel to form the lower sound beam assembly in a groined shape; and each of the lower connecting beams is located in a central region of the upper surface of the base plate. By this design, the central area of the base plate can be reinforced.

4. In the above scheme, the panel and the bottom plate are divided from the sounding frequency band and respectively comprise a peripheral high-pitch region, a middle-pitch region and a central low-pitch region; the wall thicknesses of the panel and the bottom plate are gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area; the upper sound beam assembly is located in a bass zone of the panel, and the lower sound beam assembly is located in a bass zone of the bottom plate.

By the design, the thicker bass region is arranged close to the center, so that low-frequency vibration with lower frequency and larger amplitude can generate more muddy and smooth bass in the bass regions of the panel and the bottom plate; through setting up thinner high pitch district in the position of keeping away from the center, can make the frequency higher, the less high-frequency vibration of amplitude send more penetrating, bright high pitch at the high pitch district of panel, bottom plate, and then make ruan all obtain effective promotion at tone quality, the tone quality that full frequency channel produced.

5. In the above scheme, the upper sound beam assembly and the lower sound beam assembly are arranged in an up-down direction in an alignment manner.

6. In the above scheme, the inner end thickness of the upper sound beam assembly and the inner end thickness of the lower sound beam assembly are both larger than the outer end thickness. By means of the design, the central areas of the panel and the bottom plate can be reinforced.

The utility model discloses a theory of operation and advantage as follows:

the utility model relates to a Ruan with a sound beam, which comprises a resonance box, wherein the resonance box comprises a panel, a bottom plate and a side plate; the lower surface of the panel is provided with a first channel and a second channel which are crossed on the lower surface of the panel and are communicated with each other; the middle part of the lower surface of the panel is fixedly provided with an upper sound beam assembly which comprises a plurality of first strip-shaped sound beam components which are arranged on two sides of the first channel and two sides of the second channel in pairs.

Compared with the prior art, can't compromise the problem that high, well, bass district possess good sympathetic response tone simultaneously in order to solve current ruan, the utility model discloses panel design to current ruan, especially ruan has improved. Specifically, the upper sound beam assembly is erected on the panel.

The utility model discloses highlight not come out to current ruan high pitch district, and the not enough problem of low pitch district muddy and mellow, carried out deep discussion and research to the design and the vocal mechanism of ruan, found the not good leading reason of tone quality of current ruan high pitch district and low pitch district because the panel design unreasonable causes. In view of the above, the inventor has broken the constraint that former ruan constitutes the design, has greatly proposed the utility model discloses an improve design, this kind of improve design changes the panel into present standard vibration mode by the free vibration mode in the past, has solved from the angle of vibration, sympathetic response, sound production that ruan high pitch district is bright and can not come out, and the low tone district is muddy and mellow not enough problem, practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.

Because of above-mentioned technical scheme's application, the utility model discloses compare with current ruan and have following advantage and effect:

1. the utility model discloses set up the tone beam subassembly on the lower surface of panel, 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 panel, and the high pitch sympathetic response is concentrated on the peripheral region all around of panel, strengthens panel central zone intensity, has played important effect to improving bass district tone quality and tone quality. The thickness of the panel is a thickness gradually changing structure with thick central area and thin periphery, so that the strength of the central area of the panel is enhanced, the thickness difference between the central area and the peripheral edge area of the panel is relatively changed, and the panel plays an important role in improving the tone color and tone quality of a high-pitch area.

The same design concept is also applicable to the improvement of the bottom plate, namely, the tone and the tone quality of the raney can be improved by arranging the lower sound beam component on the bottom plate.

Drawings

Fig. 1 is a schematic external view of a prior art raney (front side);

FIG. 2 is a schematic external view of a conventional Rana (side view);

fig. 3 is a schematic view of the bottom structure of a prior art raney panel;

FIG. 4 is a bottom view of FIG. 3;

fig. 5 is a schematic structural view of a raney panel according to an embodiment of the present invention;

FIG. 6 is a bottom view of FIG. 5;

fig. 7 is a schematic structural diagram of a raney base plate according to an embodiment of the present invention;

fig. 8 is a bottom view of fig. 7.

In the above drawings: 1. a panel; 1 a. upper resonance region; 2. a base plate; lower resonance region; 4. an upper sound beam assembly; 4a, a first strip-shaped sound beam member; 4b, upper connecting beams; 5. a bottom sound beam assembly; 5a, a second strip-shaped sound beam component; 5b, lower connecting beams; 6. a first trench; 7. a second trench; 9. a third trench; 10. a fourth trench; 20. a body; 21. a panel; 22. a base plate; 23. a frame plate; 24. a sound outlet hole; 25. and a sound beam.

Detailed Description

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

example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

The terms "first," "second," "third," "fourth," and the like as used herein do not denote any order or importance, nor do they limit the present disclosure, but rather are used to distinguish one element from another element or operation described in the same technical language.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "upper" and "lower" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the protection schemes and the actual implementation directions.

Referring to fig. 5 to 8, the ruan with the sound beam comprises a resonance box, wherein the resonance box comprises a panel 1, a bottom plate 2 and side plates.

The lower surface of the panel 1 is provided with a first groove 6 (formed by recessing on the first channel) and a second groove 7 (formed by recessing on the second channel), the first groove 6 and the second groove 7 are crossed and communicated with each other on the lower surface of the panel 1, the crossed points are located at the center of the panel 1, and the lower surface of the panel 1 is further equally divided into four upper resonance areas 1 a.

The middle part of the lower surface of the panel 1 is fixedly provided with an upper sound beam assembly 4, the upper sound beam assembly 4 comprises a plurality of first strip-shaped sound beam components 4a, and the first strip-shaped sound beam components 4a are arranged on two sides of the first groove 6 and two sides of the second groove 7 in pairs.

The first groove 6 and the second groove 7 form an upper transverse sound tunnel and an upper longitudinal sound tunnel on the lower surface of the panel 1 respectively.

The upper surface of the bottom plate 2 is provided with a third groove 9 (formed by being recessed in a third channel) and a fourth groove 10 (formed by being recessed in a fourth channel), the third groove 9 and the fourth groove 10 are crossed and communicated with each other on the upper surface of the bottom plate 2, and the crossed points are located at the center of the bottom plate 2, so that the upper surface of the bottom plate 2 is equally divided into four lower resonance areas 2 a.

The middle part of the upper surface of the bottom plate 2 is fixedly provided with a lower sound beam assembly 5, the lower sound beam assembly 5 comprises a plurality of second strip-shaped sound beam components 5a, and the second strip-shaped sound beam components 5a are arranged on two sides of the third groove 9 and two sides of the fourth groove 10 in pairs.

The third groove 9 and the fourth groove 10 form a lower transverse sound tunnel and a lower longitudinal sound tunnel on the upper surface of the bottom plate 2, respectively.

Preferably, an upper connecting beam 4b is arranged between two adjacent first strip-shaped sound beam components 4a, and the upper connecting beam 4b spans over the first groove 6 and the second groove 7 to form the upper sound beam component 4 in a groined shape; and each of the upper connecting beams 4b is located at a central region of the lower surface of the panel 1. Four upper connecting beams 4b form a square reinforcing structure, so that the bass zone in the center of the panel 1 can be further reinforced, and the tone quality of the Ruan bass zone can be further improved.

Preferably, a lower connecting beam 5b is arranged between two adjacent second strip-shaped sound beam members 5a, and the lower connecting beam 5b spans over the third groove 9 and the fourth groove 10 to form the lower sound beam assembly 5 in a groined shape; and each of the lower connecting beams 5b is located at a central region of the upper surface of the base plate 2. Four lower connecting beams 5b form a square reinforcing structure, so that the bass zone at the center of the bottom plate 2 can be further reinforced, and the tone quality of the Ruan bass zone can be further improved.

The upper sound beam assembly 4 and the lower sound beam assembly 5 are arranged in a contraposition mode in the vertical direction.

Preferably, the panel 1 and the bottom plate 2 are distinguished from each other by a sound frequency band and each include a peripheral high-pitched region, a middle-pitched region and a central low-pitched region; the wall thicknesses of the panel 1 and the bottom plate 2 are gradually increased from outside to inside, the wall thickness of a bass region is larger than that of a midrange region, and the wall thickness of the midrange region is larger than that of a treble region. By the design, the thicker bass region is arranged at a position close to the center, so that low-frequency vibration with lower frequency and larger amplitude can generate more muddy and smooth bass in the bass regions of the panel 1 and the bottom plate 2; by arranging the thin high pitch range at a position far from the center, high-frequency vibration with high frequency and small amplitude can generate more transparent and bright high pitch in the high pitch range of the panel 1 and the bottom plate 2. The upper sound beam assembly 4 and the lower sound beam assembly 5 are both positioned in a bass region, and the load of the middle areas of the panel 1 and the bottom plate 2 can be further improved.

Preferably, the inner end thickness of the upper sound beam assembly 4 and the inner end thickness of the lower sound beam assembly 5 are both larger than the outer end thickness. With this design, the central regions of the panel 1 and the bottom plate 2 can be reinforced.

Preferably, the first groove 6, the second groove 7, the third groove 9 and the fourth groove 10 are all arc-shaped grooves. Can make panel 1, bottom plate 2 minimize the thickness sudden change in thickness, avoid influencing the sympathetic response and the vibration of panel 1, bottom plate 2.

Wherein, the lengths of the first trench 6 and the second trench 7 are both smaller than the width of the panel 1, and the lengths of the third trench 9 and the fourth trench 10 are both smaller than the width of the bottom plate 2; smooth transition surfaces are arranged between the outer ends of the first groove 6 and the second groove 7 and the lower surface of the panel 1, so that vibration is transmitted to the periphery of the panel 1 more uniformly; smooth transition surfaces are arranged between the outer ends of the third and fourth grooves 9 and 10 and the upper surface of the bottom plate 2, so that the vibration is transmitted to the periphery of the bottom plate 2 more uniformly.

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

1. in the above embodiment, although the embodiment is given with respect to the resonance box of the large raney, the present invention is not limited thereto, and may be a high treble raney, a small raney, a medium raney, a large raney, a low treble raney, and the like. As would be readily understood and accepted by those skilled in the art. The illustrated raney is only used as an example, the structure is not intended to limit the protection scope of the present invention, and other raney with similar structure should be covered by the protection scope of the present invention if the technical features of the present invention are adopted.

2. In the above embodiments, the number of the upper sound beam assemblies 4 and the lower sound beam assemblies 5 is not limited to one set, but may be multiple sets of parallel or other designs that help to reinforce the load in the middle of the panel 1 and the bottom plate 2, which is easily understood and accepted by those skilled in the art.

3. In the above embodiments, the first bar-shaped sound beam member 4a or the second bar-shaped sound beam member 5a may be straight bar-shaped as shown in the figure, and two of them are combined at 90 degrees and are disposed at two sides of the groove in pairs.

Alternatively, the first strip-shaped sound beam member 4a or the second strip-shaped sound beam member 5a may have a radian and include two straight edges, and the straight edges of two adjacent strip-shaped sound beam members are arranged on two sides of the groove in pairs.

4. In the above embodiments, the first groove 6, the second groove 7, the third groove 9 and the fourth groove 10 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.

5. In the above embodiment, the upper sound beam assembly 4 and the lower sound beam assembly 5 are arranged in correspondence with each other in the up-down direction as viewed from the cross section of the resonance box (see fig. 3). However, the utility model discloses be not limited to this, can not align and arrange, confirm when specifically can debug tone color and tone quality according to the resonant tank. As would be readily understood and accepted by those skilled in the art.

6. In the above embodiment, the upper sound beam assembly 4 and the lower sound beam assembly 5 are the same in shape and size. However, the present invention is not limited to this, and the shape and size of the upper sound beam assembly 4 and the lower sound beam assembly 5 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 utility model discloses highlight not come out to current ruan high pitch district, and the not enough problem of low pitch district muddy and mellow, carried out deep discussion and research to the design and the vocal mechanism of ruan, found the not good leading reason of tone quality of current ruan high pitch district and low pitch district because the panel design unreasonable causes. In view of the above, the inventor has broken the constraint that former ruan constitutes the design, has greatly proposed the utility model discloses an improve design, this kind of improve design changes the panel into present standard vibration mode by the free vibration mode in the past, has solved from the angle of vibration, sympathetic response, sound production that ruan high pitch district is bright and can not come out, and the low tone district is muddy and mellow not enough problem, practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.

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 (8)

1. A ruan with a sound beam, characterized in that:

the acoustic resonator comprises a resonator, wherein the resonator comprises a panel (1), a bottom plate (2) and side plates;

the lower surface of the panel (1) is provided with a first channel and a second channel, the two channels are crossed on the lower surface of the panel (1) and communicated with each other, and the crossed point is positioned in the center of the panel (1);

the sound-absorbing panel is characterized in that an upper sound beam assembly (4) is fixedly arranged in the middle of the lower surface of the panel (1), the upper sound beam assembly (4) comprises a plurality of first strip-shaped sound beam components (4 a), and the first strip-shaped sound beam components (4 a) are arranged on two sides of a first channel and two sides of a second channel in pairs.

2. The raney for a sonic beam as claimed in claim 1, in which: a third channel and a fourth channel are arranged on the upper surface of the bottom plate (2), the two channels are crossed on the upper surface of the bottom plate (2) and are communicated with each other, and the cross point is positioned in the center of the bottom plate (2);

the middle part of the upper surface of the bottom plate (2) is fixedly provided with a lower sound beam assembly (5), the lower sound beam assembly (5) comprises a plurality of second strip-shaped sound beam components (5 a), and the second strip-shaped sound beam components (5 a) are arranged on two sides of the third channel and two sides of the fourth channel in pairs.

3. The tone-beam raney according to claim 2, wherein: the upper sound beam assembly (4) and the lower sound beam assembly (5) are arranged in an aligned mode in the vertical direction.

4. The raney for a sonic beam as claimed in claim 1, in which: an upper connecting beam (4 b) is arranged between every two adjacent first strip-shaped sound beam components (4 a), and the upper connecting beam (4 b) stretches across the upper parts of the first channel and the second channel to form the upper sound beam assembly (4) in a # -shape; and each upper connecting beam (4 b) is positioned in the central area of the lower surface of the panel (1).

5. The tone-beam raney according to claim 2, wherein: a lower connecting beam (5 b) is arranged between every two adjacent second strip-shaped sound beam components (5 a), and the lower connecting beam (5 b) spans over the third channel and the fourth channel to form the lower sound beam assembly (5) in a groined shape; and each of the lower connecting beams (5 b) is located in a central region of the upper surface of the bottom plate (2).

6. The raney for a sonic beam as claimed in claim 1, in which: the panel (1) is divided into a peripheral high-pitch area, a middle-pitch area and a central low-pitch area from the pronunciation frequency band;

the wall thickness of the panel (1) is gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area;

the upper sound beam assembly (4) is located in the bass region.

7. The tone-beam raney according to claim 2, wherein: the bottom plate (2) is divided into a peripheral high-pitch area, a middle-pitch area and a central low-pitch area from the pronunciation frequency band;

the wall thickness of the bottom plate (2) is gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area;

the bass beam assembly (5) is located in the bass region.

8. The tone-beam raney according to claim 2, wherein: the inner end thicknesses of the upper sound beam assembly (4) and the lower sound beam assembly (5) are larger than the outer end thicknesses.

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