CN201893108U - Tone quality optimized stereo Beijing Erhu - Google Patents

Abstract

The utility model discloses a tone quality optimized stereo Beijing Erhu which consists of a lyre cylinder, a lengthening lyre holder, a lyre rod, a lyre shaft, a string, a bow and a bridge, wherein a lyre skin is arranged on the lyre cylinder; the auxiliary lyre cylinder is butted at the other side of the lyre skin; an upper string mouth and a lower string mouth are arranged on the auxiliary lyre cylinder corresponding to the string; and the string penetrates through the upper string mouth and the lower string mouth. According to the acoustic wave vibration transmission principle, a resonance cylinder is butted at the right side of the lyre cylinder of an original Beijing Erhu, so that the acoustic wave vibration at the two sides of the lyre skin can be resonated and amplified; meanwhile, the noise is effectively avoided, and the tone is beautified. The trying of the stereo Beijing Erhu indicates that the improved Beijing Erhu has enlarged volume and thick and solid tone; meanwhile, the acoustic wave is generated from resonance cylinders of two opposite directions, so that the stereo Beijing Erhu has the stereo effect. In addition, the stereo Beijing Erhu has a simple structure and is easy to realize.

Description

A kind of stereo capital urheen of optimizing tonequality

Technical field

The utility model relates to a kind of national musical instruments, particularly a kind of stereo capital urheen of optimizing tonequality.

Background technology

The capital urheen, bowed instrument.The capital urheen is traditional bowed instrument of China, its origin is write and produced " Xisi, famous beauty in the late Spring and Autumn Period " since nineteen twenty-three Mr. Mei Lanfang, 18 end of the centurys, formation along with the traditional opera Beijing opera of China, on the basis of bowed instrument Chinese fiddle, change a social system and form, so far have the history in more than 200 year, with jinghu and yu-kin and title three-major-items.Become one of main musical instrument accompaniment in Beijing opera band.In accompaniment, its utilization bag, finish the accompaniment of music for voices in a Chinese opera with artistic medias such as, lining, benefit, pads, increased the level of music.Because it hangs down octave than jinghu on pitch, its sound is mellow and full simple and honest, get along swimmingly with each other with loud and sonorous bright jinghu tone color, gladden the heart and refresh the mind, thereby make the range of sound and tone color produce changes in contrast, it is abundant that the sound equipment level has been obtained, it is more harmonious that tone becomes, and enriched the expressive force of Beijing opera band accompaniment; Part to jinghu has played the effect that replenishes and serve as a contrast or foil simultaneously, has become the main musical instrument accompaniment of Chinese traditional opera Beijing opera.The purpose that adds the capital urheen in the accompaniment is to try hard to make accompaniment to reach the effect of harmony, one integrated mass.As seen the mellow and full simple and honest of capital urheen sound is very important.

The qin tube of capital urheen is a resonant tank, and the sensitivity to height power, tone color tonequality and the qin of qin sound plays key effect.Growing along with science and culture, compatriots contained the cry day of musical instrument reform, so national musical instruments when keeping himself characteristic, also should keep reforming and be perfect, with epoch maintenance synchronized development.

From acoustic angle the capital urheen is analyzed, it has unreasonable part as can be known.Traditional capital urheen, its qin tube is made of timber, and the one end covers with snakeskin, with bow hair string friction string is caused to promote the vibration of string and qin skin air and form sound wave, through the stronger musical sound of qin tube sympathetic response formation.Because sound wave is identical at the air vibration amplitude that qin skin both sides cause, phase place is opposite, have only a side sound wave to give the sympathetic response amplification by the qin tube, the opposite side sound wave then is the gesture of disseminating, no sympathetic response effect.Thereby overall musical sound sympathetic response amplification imperfection, the sound wave of both sides lacks complementary, has noise, and tone color lacks abundant sensation.

The utility model content

Technical problem to be solved in the utility model provide a kind of sympathetic response amplify perfect, give great volume, the stereo capital urheen of abundant mellow and full, the optimization tonequality of tone color with stereophonic effect.

For solving the problems of the technologies described above, technical solution adopted in the utility model is:

A kind of stereo capital urheen of optimizing tonequality, form by main qin tube, auxiliary qin tube, Qin Tuo, qin bar, string, qin axle, qin sign indicating number, bow, main qin tube is provided with the qin skin, there is auxiliary qin tube to be docked at the opposite side of qin skin, the position corresponding with string is provided with upper and lower string mouth on the auxiliary qin tube, and string is by passing in the upper and lower string mouth.

Main qin tube described in the utility model has two left web joints, and described auxiliary qin tube has two right web joints; Web joint at the bottom of the bottom is provided with one, left and right connecting plates connects (described web joint by bolt, can dismounting) with bolt.

Qin holder described in the utility model and main qin tube are fixed, and qin holder right-hand member links with end web joint spiral.

The two interface sizes and the geometric configuration of auxiliary qin tube described in the utility model and main qin tube are complementary, and the length of auxiliary qin tube is 1/2 to 3/4 of main qin tube length degree.

The mouth that winds up described in the utility model is positioned at the outer 2～3mm place of auxiliary Zhoukou City, qin tube top line, is 4～5mm along qin tube axial dimension, is of a size of 7～9mm with fortune bow vertical direction, has a little gap to communicate between wind up mouth and Zhoukou City's line.

Described in the utility model winding up mouthful to being positioned at two elliptical apertures on auxiliary qin tube top, the elliptical aperture center is according to the line 5～7mm of Zhoukou City, transverse is 6～8mm, minor axis is 3～5mm, two elliptical aperture centers communicate at tangent place, and with Zhoukou City's line between have a little gap to communicate.

Lower edge mouth described in the utility model is positioned at auxiliary qin tube bottom, opens an axial 2mm at Zhoukou City's line place, circumferentially the breach of 5mm.

Qin degree of protracting described in the utility model is that 1.3 times of main qin tube length degree are advisable.Qin Tuo and lower edge mouth corresponding position were provided with the string hole.

Adopt the beneficial effect that technique scheme produced to be: the utility model is according to the acoustic vibration propagation principle, traditional capital urheen structure is improved, an auxiliary qin tube has been docked on right side at former capital urheen master qin tube, make the acoustical vibration of qin skin both sides all give the sympathetic response amplification, thereby increased volume, its complementation has effectively suppressed noise, has beautified tone color.Shows through on probation, the capital urheen after the improvement, volume enlarge markedly, pronounce abundant full, tone color is mellow and full pure; Because sound wave is by sending in two rightabout resonance tubes, thereby has stereophonic effect.Use the utility model in the performance, traditional playing technique is not had any change, and simple in structure, be easy to make.Because the qin tube of capital urheen itself (comparing with urheen) is shorter, so can not influence the fortune bow.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the A portion zoomed-in view of Fig. 1

Fig. 3 is the front view of auxiliary qin tube

Fig. 4 is the left view of Fig. 3

Fig. 5 is that the B of Fig. 3 is to zoomed-in view when being a single hole (wind up mouthful)

Fig. 6 is that the B of Fig. 3 is to zoomed-in view when being two elliptical apertures (wind up mouthful)

Embodiment

The parts label is as follows in the accompanying drawing: 1. main qin tube; 2. auxiliary qin tube; 3. qin skin; 4. qin holder; 5. mouth winds up; 6. lower edge mouth; 7. left web joint; 8. right web joint; 9. Zhoukou City's line; 10. the elliptical aperture mouth that winds up; 11. end web joint; 12. pressing plate; 13. little gap; 14. cross the string hole.

As shown in Figure 1, the stereo capital urheen of this optimization tonequality is made up of main qin tube, Qin Tuo, auxiliary qin tube, qin bar, qin axle, string, qin sign indicating number, bow.Capital urheen after the improvement has been set up auxiliary qin tube 2, and auxiliary qin tube is docked at the opposite side at qin skin 3, has therefore formed two resonance tubes.The ultimate principle of this structure is apparent, and it is amplified the vibration of the both sides air that the vibration of qin skin causes respectively by two resonance tubes, therefore increased volume, by the tone color complementation, can effectively abate the noise.Again because sound wave by sending in two rightabout resonance tubes, thereby has three-dimensional transaudient effect.On the auxiliary qin tube qin skin is not set, the position corresponding with string is provided with upper and lower string mouth (5,6) on auxiliary qin tube, and string is convenient to change string by passing in the upper and lower string mouth.

Auxiliary qin tube and qin tube 1 are made as detachable structure.The two is by left web joint 7, right web joint 8 and end web joint 11 3 place's bolted during butt joint, when needing auxiliary qin tube of transposing or adjustment numeral or changing string, unclamp each bolt, the two is promptly separable, and this structure also can be according to the different auxiliary qin tube of playing of needs transposing.As shown in Figure 3, Figure 4, two right web joints 8 are symmetricly set on the qin tube.As shown in Figure 2, end web joint 11 is fixed on the bottom of auxiliary qin tube, and the right-hand member of qin holder 4 is provided with bolt hole, and the right side is provided with pressing plate 12, and qin holder right-hand member is connected with end web joint bolt.

Qin Tuo and main qin tube (1) are fixed by traditional approach, and qin holder right-hand member and end web joint (11) are by bolt together.

Two connection dimensions and the geometric configuration of auxiliary qin tube and qin tube should mate, smooth excessively.Bend freely for the fortune that does not influence the capital Erhu playing, the length of auxiliary qin tube is about 1/2 to 3/4 of qin tube length degree and is advisable.For reaching different tone color requirements, the material (as kind and degree of aging, the thickness etc. of timber) of auxiliary qin tube and qin tube can have similar and different selection collocation.Geometric configuration only requires that sealing joint gets final product well.

As shown in Figure 4, auxiliary qin tube is provided with lower edge mouth 5,6, and after auxiliary qin tube was docked on the qin tube, string, did not touch with auxiliary qin socket joint when the size of the mouth that winds up should guarantee the vibration of string amplitude peak by passing through in the last lower edge mouth.The mouth that winds up can adopt bielliptic(al) shape shown in Figure 6 or geometric configuratioies such as rectangle shown in Figure 5, and the little gap that the mouth that winds up is communicated with Zhoukou City's line is conveniently to establish in order to change string.The lower edge mouth is very little, can guarantee to change string and conveniently get final product (need not consider vibration).

Qin Tuo was provided with string hole 14, and string passes and be fixed on qin backing portion thus.

Claims (8)

1. A stereo Beijing erhu with optimized sound quality is composed of main qin tube, qin holder, auxiliary qin tube, qin bar, qin shaft, strings, piano code, and bow, and a piano skin is installed on the main qin tube, which is characterized in that : There is an auxiliary piano tube (2) docked on the other side of the piano skin (3), and the parts corresponding to the strings on the auxiliary piano tube are provided with upper and lower string openings (5, 6), and the strings pass through the upper and lower string openings Pass. 2. The stereo Beijing erhu of a kind of optimized sound quality according to claim 1, is characterized in that: described main qin tube is provided with two left connecting plates (7); described auxiliary qin tube is correspondingly provided with two right connecting plates Plate (8), the bottom is provided with a bottom connecting plate (11), and left and right connecting plate bolt links. 3. A stereo Beijing erhu with optimized sound quality according to claim 2, characterized in that: the qin holder is fixed to the main piano tube (1), and the right end of the qin holder is spirally connected to the bottom connecting plate (11). 4. according to claim 1 or 2 or 3 described a kind of stereo Beijing erhu of optimized sound quality, it is characterized in that: the size and geometric shape of two butt joints of described auxiliary qin tube (2) and main qin tube (1) are the same To match, the length of the auxiliary piano tube is 1/2 to 3/4 of the length of the main piano tube. 5. A stereo Beijing erhu with optimized sound quality according to claim 4, characterized in that: said winding mouth (5) is located 2 to 3 mm outside the peripheral line (9) on the upper part of the auxiliary piano tube, along the axial direction of the piano tube The size is 4-5mm, and the dimension perpendicular to the bow is 7-9mm. There is a small gap (13) between the upper string mouth and the Zhoukou line to communicate. 6. A stereo Beijing erhu with optimized sound quality according to claim 4, characterized in that: the upper string opening is two oval holes (10) located on the upper part of the auxiliary piano tube, and the center of the oval hole is 5-7 mm from the circumference line , the major axis of the ellipse is 6-8 mm, the minor axis is 3-5 mm, and the centers of the two elliptical holes are connected at the tangent, and there is a small gap (13) to communicate with the Zhoukou line. 7. A stereo Beijing erhu with optimized sound quality according to claim 6, characterized in that: the lower string opening (6) is located at the bottom of the auxiliary piano tube, and a gap of 2 mm in the axial direction and 5 mm in the circumferential direction is opened at the circumference of the mouth line. . 8. A stereo Beijing erhu with optimized sound quality according to claim 7, characterized in that: a string passing hole (14) is provided at the corresponding position of the piano support and the lower string opening. the

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