CN217279989U - Piano with improved acoustics - Google Patents

Abstract

The utility model discloses a leather urheen of bridge in acoustics improvement, including the body and python skin chassis and outer horse, be provided with interior horse structure in the hollow structure of body, interior horse structure and outer horse fixed connection, outer horse is connected fixedly with the string on the body, the outside of interior horse structure is connected with the inboard of python skin, interior horse structure includes interior horse-hoop, interior horse-foot, interior horse-rack and interior horse-rod, interior horse-rod realizes being connected with python skin through the connection of interior horse-foot and interior horse-rack, the utility model discloses improve interior horse and python skin contact mode, can keep the bass pure, can provide the performance of high explosive degree for medium and high sound again, brought very big convenient and auditory experience for the performance of leather urheen, changed the position of interior horse structure in the body to increase the area of contact with python skin, the involucra is difficult for forming resonance with ambient noise, has higher stage practicability.

Description

Piano with improved acoustics

Technical Field

The utility model relates to a leather hu musical instrument technical field especially relates to a bridge's leather hu in acoustics improves.

Background

The corium urheen refers to a Chinese national bass string instrument created on the basis of erhu in the 1958 s of Yanghui. It produces sound by the principle of the vibration of the boa skin of the huqin, and the strings and the boa skin are connected through the inner horse and the outer horse to conduct vibration. The Chinese chuanhu is mostly used for national harmony orchestra, indoor music and modern national wind music. The Chinese fiddle has good performance and beautiful timbre, and has the traditional lingering charm of national Huqin due to the principle of vibration sounding of the membrane. The range and fixed strings of the violoncello are consistent with those of a violoncello, and the violoncello has unique playing technique and music expression form.

However, the bridge in the traditional Chinese fiddle cannot provide stable timbre and excessive volume in different sound areas, the contact range with the boa skin is basically in the central position, and larger resonance is easily caused in a specific frequency band. The boa skin is not enough constrained by the internal bridge due to the small contact range in the high-noise stage playing environment, and is easy to form resonance with the environmental noise to further cause sound amplification and chirping. The effective vibration diameter of the traditional boa skin of the leather-huhu is about 33cm, and the protruding resonance frequency band of the boa skin is about 95Hz to 120Hz of root sounds and second to four harmonic sounds in the harmonic array according to the tightness degree of the skin of different individuals. With the second overtone resonance being most pronounced.

The traditional inner horse of the leather huqin is an umbrella-shaped support and is connected with the outer horse through an umbrella handle, the umbrella foot is centrally stuck on the inner surface of python skin in a hexagonal divergence shape, the traditional inner horse of the leather huqin divides the python skin into six equal parts of space from a vibration surface, the drum-face overtone vibration principle is not met, the six surfaces basically share the same resonance sensitive range, and the design of the large sound range of the leather huqin is not met. In the traditional concept of the moustache fabrication and maintenance, the equus umbellata feet in the moustache all contact the python skin by six sides and three sides on average, the vibration of the moustache is easy to generate larger wolf sound and resonance in a specific frequency band, so that the tone color is excessively uneven, and meanwhile, the uneven volume, tone color and vibration reaction speed caused by uneven high and low frequency vibration have non-positive influence on the playing and hearing experience of the moustache.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's not enough, the utility model provides a haru's hu in acoustics improves to the different vibration phenomena that the involucra exhibits under different frequency channels are the basis, and horse and python skin contact mode in improving can keep the bass pure, can provide the performance of high explosive degree again for the medium-high sound.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a haru of bridge in acoustics improves, includes body and python skin chassis and outer horse, python skin is fixed in body bottom hollow structure's the outside, be provided with interior horse structure in the hollow structure of body, interior horse structure and outer horse fixed connection, outer horse is connected fixedly with the musical instrument chord on the body, the outside and the inboard of python skin of interior horse structure are connected, including interior horse ring, interior horse foot, interior horse rest and interior horse pole in the interior horse structure, interior horse pole is connected fixed the realization and is connected with python skin through the connection of interior horse foot and interior horse rest, interior horse pole is fixed with outer horse.

Further, as the utility model discloses a technical scheme, interior horse ring is hollow annular structure, just interior horse foot is provided with three groups, every group including the equal equidistance of interior horse foot is fixed on the lateral wall of horse ring, every group the top lateral wall of interior horse foot all is fixed with two sets of interior horse racks, every group the other end of interior horse rack all with the bottom lateral wall fixed connection of interior horse pole, interior horse pole is run through to the bottom of outer horse.

Further, as the utility model discloses a technical scheme, single the horse frame is all parallel mutually in two sets of on the interior horse foot.

Further, as the utility model discloses a technical scheme, be provided with the export of the outer horse of musical instrument section of thick bamboo between outer horse and the musical instrument body.

Further, as the utility model discloses a technical scheme, the bottom of interior horse pole is unsettled state, and all contactless with interior horse ring and python skin.

Further, as the utility model discloses a technical scheme, outer horse is fan-shaped structure big-end-up, and sets up the tie point between outer horse and the export of the outer horse of a musical instrument section of thick bamboo.

Further, as the utility model discloses a technical scheme, the centre of a circle of interior horse ring is 2.5cm to the skew of the extension line direction in the outer horse exit of musical instrument section of thick bamboo and the skin centre of a circle crossing point department of python.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

the utility model discloses use the different vibration phenomena that the involucra shows up under different frequency channels to be the basis, improved traditional chinese thorowax's interior horse and python skin contact mode, broken through the thinking that the vibration was dispersed at the center to the whole vibrations of chinese thorowax, avoided absolutely equally dividing the unusual vibration of specific frequency channel that the shape brought from the bottom logic. The inner bridge is improved through acoustics, the python skin is divided into five different vibration areas including a high sound area, a middle sound area and a low sound area, the covered resonance overtone arrays are increased from the original one array to four arrays, the common sound area for playing the urheen is better covered, the python skin can vibrate excessively and smoothly in the different sound areas, the tone colors are uniform, the low sound purity can be kept, and the high-explosive-degree performance can be provided for the middle and high sounds. Simultaneously, changed the position of interior horse structure in the body to the increase and the area of contact of python skin, the involucra is difficult for forming resonance with ambient noise, has higher stage practicality.

Drawings

Fig. 1 is a schematic structural view of a leather urheen of the present invention;

fig. 2 is a schematic view of the internal cross-sectional structure of the urheen of the present invention;

FIG. 3 is a schematic view of the inner horse structure and the outer horse of the present invention;

fig. 4 is a schematic view of the inner horse structure of the present invention;

fig. 5 is a schematic side sectional view of the structure of the urheen of the present invention.

Wherein: 1. a body; 2. python skin; 3. a chassis; 4. an outer horse; 5. an inner horse structure; 51. an inner horse rod; 52. an inner horse frame; 53. an inner horse foot; 54. an inner horsering; 6. and an outer bridge outlet of the organ cylinder.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example 1

As shown in fig. 1-5, the utility model provides a gram-shaped fiddle of interior bridge is improved to acoustics, including body 1 and python skin 2 chassis 3 and outer horse 4, python skin 2 is fixed in the outside of body 1 bottom hollow structure, be provided with interior horse structure 5 in the hollow structure of body 1, interior horse structure 5 and outer horse 4 fixed connection, outer horse 4 is connected fixedly with the last string of body 1, the outside of interior horse structure 5 is connected with the inboard of python skin 2, including interior horse ring 54, interior horse foot 53, interior horse frame 52 and interior horse pole 51 in interior horse structure 5, interior horse pole 51 realizes being connected with python skin 2 through the connection of interior horse foot 53 and interior horse frame 52 is fixed, interior horse pole 51 is fixed with outer horse 4, interior horse structure 5 is eccentric structure in body 1; the inner horse ring 54 is of a hollow annular structure, three groups of inner horse feet 53 are arranged, each group of inner horse feet 53 are fixed on the outer side wall of the inner horse ring 54 at equal distances, two groups of inner horse frames 52 are fixed on the side wall of the top end of each group of inner horse feet 53, the other end of each group of inner horse frames 52 is fixedly connected with the outer side wall of the bottom end of the inner horse rod 51, and the bottom end of the outer horse 4 penetrates through the inner horse rod 51; it is single horse frame 52 all is parallel to each other in two sets of on interior horse foot 53, be provided with outer horse export 6 of musical instrument barrel between outer horse 4 and the body 1, the bottom of interior horse pole 51 is unsettled state, and all contactless with interior horse ring 54 and python skin 2, outer horse 4 is big-end-up's fan-shaped structure, and sets up the tie point between outer horse 4 and the outer horse export 6 of musical instrument barrel.

Example 2

On the premise of the same structure as embodiment 1, the circle center of the inner horse ring 54 in this embodiment is 2.5cm offset from the extension line direction of the outer horse outlet 6 of the piano tube at the intersection of the circle center of the outer horse outlet 6 of the piano tube and the python skin 2.

The utility model discloses to the whole vibrations of the chinese fiddle broken through the thinking that the vibration was dispersed in the center, avoided absolutely equally dividing the abnormal vibration of specific frequency channel that the shape brought from the bottom logic. The inner bridge is improved by acoustics, the python skin 2 is divided into five different vibration areas including a high area, a middle area and a low area, the covered resonance overtone arrays are increased from the original one array to four arrays, the common sound area for playing the urheen is better covered, and the python skin 2 can vibrate excessively smoothly in different sound areas and has uniform tone colors.

Based on different vibration phenomena displayed by the skin membrane under different frequency bands, the contact mode of the inner horse structure 5 and the python skin 2 is improved, so that the low-pitched sound can be kept pure, and the performance of high explosion degree can be provided for medium and high-pitched sounds. For the performance of the Chinese violin high, middle and low tones, great convenience and hearing experience are brought, compared with the existing structure, the position of the inner horse structure 5 in the body 1 is changed, the contact area with the python skin 2 is increased, the leather membrane is not easy to resonate with environmental noise, and the stage practicability is higher.

The utility model is helpful for the actual playing experience of the player of the urheen, and can improve the tone quality and volume uniformity of the sounding of the musical instrument; on the other hand, the plasticity of the musical instrument used in different occasions and environments can be improved.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a haru in bridge is improved to acoustics, includes body (1) and python skin (2) chassis (3) and outer horse (4), python skin (2) are fixed in body (1) bottom hollow structure's the outside, its characterized in that: be provided with interior horse structure (5) in the hollow structure of body (1), interior horse structure (5) and outer horse (4) fixed connection, outer horse (4) are gone up the string with body (1) and are connected fixedly, the outside of interior horse structure (5) is connected with the inboard of python skin (2), including interior horse ring (54), interior horse foot (53), interior horse saddle (52) and interior horse-pole (51) in interior horse structure (5), interior horse-pole (51) are connected with python skin (2) through the fixed realization of being connected of interior horse foot (53) and interior horse-pole (52), interior horse-pole (51) are fixed with outer horse (4), interior horse structure (5) are eccentric structure in body (1).

2. An acoustically improved internal bridge urheen according to claim 1, wherein: interior horse ring (54) are hollow loop configuration, just interior horse foot (53) are provided with three groups, every group interior horse foot (53) are impartial apart from fixing on the lateral wall of interior horse ring (54), every group the top lateral wall of interior horse foot (53) all is fixed with two sets of interior horse frames (52), every group the other end of interior horse frame (52) all with the bottom lateral wall fixed connection of interior horse pole (51), interior horse pole (51) is run through to the bottom of outer horse (4).

3. An acoustically improved internal bridge urheen according to claim 1, wherein: two groups of inner horse frames (52) on the single inner horse foot (53) are parallel to each other.

4. An acoustically improved internal bridge urheen according to claim 1, wherein: an outer bridge outlet (6) of the piano tube is arranged between the outer bridge (4) and the piano body (1).

5. An acoustically improved internal bridge urheen according to claim 1, wherein: the bottom end of the inner horse post (51) is in a suspended state and is not in contact with the inner horse ring (54) and the python skin (2).

6. An acoustically improved internal bridge urheen according to claim 1, wherein: the outer bridge (4) is of a fan-shaped structure with a large upper part and a small lower part, and a connecting point is arranged between the outer bridge (4) and the outer bridge outlet (6) of the barrel.

7. An acoustically improved internal bridge urheen according to claim 1, wherein: the circle center of the inner horse ring (54) is 2.5cm deviated from the extension line direction of the position of the outer horse outlet (6) of the piano tube at the intersection of the circle center of the outer horse outlet (6) of the piano tube and the python skin (2).

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