Double-jack five-degree string Henan drama Banhu

Abstract

The invention provides a double-jack five-degree-string Henan playing Banhu which comprises a Henan playing Banhu body and two jacks which are installed on the Henan playing Banhu body, change traditional four-degree strings into five-degree strings and are used for supporting strings, the Henan playing Banhu body comprises an instrument cylinder and an instrument rod installed on the instrument cylinder, the jacks are installed on the instrument rod, the number of the jacks is two, and the jacks are connected with the instrument cylinder. Wherein one jack is used for supporting an outer string of a string, and the other jack is used for supporting an inner string of the string. Through the design that the inner and outer strings are independently supported by the double jacks, the limitation of four-degree ranges of a traditional Henan viola Banhu body is broken through, accurate conversion of five-degree ranges is achieved, meanwhile, mutual interference of string bodies is avoided, diversified playing requirements are met, and the application range of the musical instrument is widened.

Description

Technical Field

[0001] This invention relates to the field of musical instrument technology, and in particular to a double-weighted, five-stringed Henan opera banhu. Background Technology

[0002] The Henan Opera Banhu, a traditional bowed string instrument with immense cultural charm, holds an important position in the field of folk music due to its unique timbre and expressiveness. The traditional Henan Opera Banhu has a relatively simple structure, with core components including the base, soundbox, neck, strings, tuning pegs, and a single jack. The single jack is a fixed interval support component, only adaptable to fourth intervals, which is insufficient to meet the diverse interval requirements of modern musical composition.

[0003] With the continuous expansion of modern music performance venues, the requirements for the sound penetration and coverage of instruments in large concert halls and outdoor music festivals have significantly increased. At the same time, modern music composition demands a continuous upgrade in the richness of instrument intervals, playing comfort, and structural durability. The limitations of the traditional Henan opera banhu (a two-stringed bowed instrument) in terms of its fourth interval, insufficient sound penetration, poor holding comfort, easy damage to the soundbox, and easy corrosion of the strings are becoming increasingly prominent. It is difficult to adapt to the sound propagation requirements of large venues, and it cannot meet the performers' demands for stable performance over long periods and the expression of diverse intervals. Its traditional structure is gradually becoming unable to match the actual needs of modern performance and composition. Summary of the Invention

[0004] In view of this, the present invention aims to provide a double-weighted, five-stringed Henan opera banhu to solve or alleviate the technical problems existing in the prior art.

[0005] The technical solution of this invention is implemented as follows: a double-bridged fifth-string Henan opera banhu, comprising a Henan opera banhu body and bridges installed on the Henan opera banhu body to convert a fourth interval into a fifth interval and to support the strings, characterized in that the Henan opera banhu body includes a soundbox and a neck installed on the soundbox, the bridges are installed on the neck, and two bridges are installed, one of which supports the outer string and the other supports the inner string; through the independent support design of the double bridges, the outer string and the inner string can be adjusted separately, breaking the limitation of the traditional single bridge that can only achieve a fourth interval, meeting the needs of playing a fifth interval, and avoiding mutual interference between the strings.

[0006] To achieve accurate transitions from a fourth to a fifth while ensuring the stability of the string support and preventing string displacement during performance, the two jacks are spaced 2-5cm apart along the axial direction of the neck. Each jack is made of brass and its inner side is wrapped with non-slip velvet. The top of the jack has an arc-shaped support groove that matches the diameter of the corresponding string. The non-slip velvet increases friction with the string, and the arc-shaped support groove fits the surface of the string, ensuring that the string remains in a stable position during vibration and improving intonation accuracy.

[0007] To improve the comfort of holding the instrument during performance, reduce the pressure on the body during long performances, and ensure the overall stability of the Henan Opera Banhu, a support is installed on the soundbox. The side of the support away from the soundbox is curved, and the curved surface conforms to the curve of the abdomen or leg. The support is made of high-density rosewood and is fixedly connected to the soundbox through mortise and tenon joints. The curved design conforms to the physiological curve of the human body, reducing fatigue in the hands and body. The rosewood material has both hardness and toughness, preventing structural deformation caused by long-term use.

[0008] To ensure effective transmission of string vibrations, enhance the clarity and resonance of the Henan Opera Banhu's sound, and avoid energy loss from string vibrations, a bridge is installed on the soundbox. The bridge is made of air-dried pine wood and is 1-2 cm high. The top of the bridge has double-arc string grooves that correspond one-to-one with the inner and outer strings. The bottom of the bridge is tightly fitted to the soundbox skin. Pine wood has good vibration conductivity, and the double-arc string grooves ensure that the inner and outer strings vibrate independently without interference. The tight fit design at the bottom allows vibrations to be efficiently transmitted to the soundbox, enhancing the richness of the tone.

[0009] To secure both ends of the strings and prevent them from shifting due to tension changes during performance, thus ensuring stable pitch, fixing posts are installed on both the neck and the support to secure the strings. These fixing posts are cylindrical in shape. The fixing post on the neck is located above the jack (near the headstock), while the fixing post on the support is located below the soundbox (near the end of the support). A ring-shaped groove is provided on the outer side of each fixing post. This groove is used to wrap around and lock the ends of the strings. The symmetrical arrangement of these fixing posts creates a stable string tension system, maintaining constant pitch.

[0010] To ensure the continuity of string installation and the stability of the vibration path, and to prevent the strings from detaching from the support structure during performance, the two sets of strings (outer string and inner string) on ​​the main body of the Henan Opera Banhu are embedded sequentially from top to bottom into the support groove of the jack and the string groove of the bridge, with a string fit of ≥90% between the strings and the grooves. The continuous embedding design forms a complete vibration chain of "fixed column-jack-bridge-fixed column". The high-carbon piano strings improve the stability of the vibration frequency, and the rust-proof treatment extends the service life.

[0011] To further enhance the resonance of the instrument's soundbox and improve the tonal layering of the Henan Opera Banhu, the soundbox is made of rosewood or old mahogany. The inner wall of the soundbox is polished smooth and has an annular resonance groove. The outer side of the soundbox is wrapped with a carbon fiber reinforcement layer. Rosewood and old mahogany have excellent acoustic resonance characteristics. The annular resonance groove on the inner wall enhances sound wave reflection. The carbon fiber reinforcement layer reduces the weight of the soundbox and avoids cracking problems that may occur after long-term use, thus balancing tone and durability.

[0012] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: This invention breaks through the limitation of the traditional Henan opera banhu's body with a fourth interval by independently supporting the inner and outer strings with two jacks, and achieves accurate conversion of the fifth interval and widening of the range. At the same time, it avoids mutual interference between the strings, meets diverse performance needs, and improves the instrument's applicability. This invention, through the combined design of an arc-shaped piano stand, an anti-slip jack, and a fixing post, ensures both comfort during performance and stability of string position and tension, reducing pitch deviation and improving the smoothness of performance. This invention enhances the transmission efficiency of string vibrations and the resonance effect of the soundbox through acoustic optimization design of pine bridge, rosewood soundbox and annular resonance groove, making the tone richer and clearer and improving musical expressiveness.

[0013] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged structural diagram of part A.

[0016] Figure label: 1. The main body of the Henan Opera Banhu; 2. The bridge; 3. The soundbox; 4. The neck; 5. The support; 6. The bridge; 7. The fixing post. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0018] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features. In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the accompanying drawings and specific circumstances.

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1-2 As shown, this invention discloses a double-bridge, fifth-degree-interval Henan opera banhu, comprising the banhu body 1, bridge 2, 6-piece bridge assembly, 7-piece fixing post assembly, and two sets of strings. It can overcome the limitations of the traditional Henan opera banhu body's fourth-degree interval to achieve fifth-degree interval playing, while also considering playing comfort and tonal resonance. The specific structure and implementation method are as follows: The main body 1 of the Henan Opera Banhu serves as the core supporting structure of the instrument, including the soundbox 3, the neck 4, and the base 5. The three components work together to provide basic support and acoustic optimization.

[0021] Body 3: Made of rosewood or old mahogany, it has a hollow cylindrical structure. Its inner wall is polished smooth and has a ring-shaped resonance groove, while the outer side is wrapped with a carbon fiber reinforcement layer. Rosewood and old mahogany have excellent acoustic resonance characteristics, the ring-shaped resonance groove can enhance sound wave reflection, and the carbon fiber reinforcement layer can reduce the weight of body 3 and prevent cracking after long-term use, thus balancing tone and durability.

[0022] Neck 4: Vertically fixed on the top of the soundbox 3, it is a solid rod-shaped structure used to support the double jack 2 structure and the side fixing posts 7 of the neck 4; its surface is polished smooth to ensure smooth hand contact during playing.

[0023] The base 5, installed on the side of the soundbox 3 away from the neck 4, is made of high-density rosewood and is fixedly connected to the soundbox 3 via mortise and tenon joints. The side of the base 5 away from the soundbox 3 is curved, conforming to the curve of the abdomen or legs of the human body; this curved design fits the physiological curves of the human body, reducing fatigue during long performances, and the hardness and toughness of the rosewood prevent structural deformation. Furthermore, the main body 1 of the Henan Opera Banhu requires no electric components; the entire system relies on a mechanical structure to achieve acoustic and operational functions, requiring no additional power supply.

[0024] The double-bridge 2 structure is the core component for converting a fourth interval to a fifth interval. Two bridges are installed on the neck 4, spaced 2-5cm apart along the neck's axis, supporting the outer and inner strings respectively. Each bridge 2 is made of brass, with an inner anti-slip felt covering, and an arc-shaped support groove on top that matches the diameter of the corresponding string. The brass material ensures structural strength, the anti-slip felt increases friction with the strings, and the arc-shaped support groove conforms to the string surface, ensuring the strings do not shift during vibration and improving intonation accuracy. This design, with the double bridge 2 independently supporting the inner and outer strings, allows for independent adjustment of the tension of both strings, breaking the limitation of the traditional single bridge 2 which can only achieve a fourth interval. It also prevents mutual interference between string vibrations, meeting the requirements for playing a fifth interval.

[0025] The bridge 6 assembly is mounted on the top skin of the soundbox 3 to receive and transmit string vibrations to the soundbox 3, thus amplifying tonal resonance. The bridge 6 is made of air-dried pine wood, with an overall height of 1-2 cm. The top has double-arc string grooves corresponding to the inner and outer strings, while the bottom fits snugly against the soundbox 3. Pine wood has excellent vibration conductivity, and the double-arc string grooves ensure independent vibration of the inner and outer strings without interference. The snug fit at the bottom efficiently transmits string vibrations to the soundbox 3, enhancing the richness and clarity of the tone.

[0026] The fixing post 7 assembly is used to fix the two ends of the string and maintain the string tension. There are two sets, which are installed on the neck 4 and the base 5 respectively.

[0027] The fixing post 7 on the neck 4 is located above the jack 2 (near the headstock), and the fixing post 7 on the base 5 is located below the soundbox 3 (near the end of the base 5). The two are arranged symmetrically.

[0028] The fixing post 7 is a cylindrical structure with an annular groove on the outside. The annular groove is used to wrap around and lock the end of the string. The symmetrical layout can form a stable string tension system, preventing the string from shifting due to tension changes during performance, and further ensuring constant pitch.

[0029] The string assembly includes two sets of independent strings (outer and inner strings), both made of high-carbon piano string material with a rust-proof treatment. The high-carbon material improves the stability of the vibration frequency, and the rust-proof treatment extends the lifespan of the strings. The strings are embedded sequentially from top to bottom into the arc-shaped support groove of the jack 2 and the double-arc string groove of the bridge 6, with a string-to-groove fit of ≥90%. The continuous embedding design forms a complete vibration chain of "neck 4 fixing post 7 - jack 2 - bridge 6 - support 5 fixing post 7", ensuring a stable string vibration path and preventing the strings from detaching from the support structure during performance.

[0030] When using the instrument, first install the strings: insert the outer and inner strings into the arc-shaped support grooves of the corresponding bridge 2, and then insert them into the double arc-shaped string grooves of the bridge 6, ensuring that the fit between the strings and the grooves is ≥90%; then wrap both ends of the strings around the annular grooves of the fixing post 7 of the neck 4 and the fixing post 7 of the support 5, adjust the string tension to a suitable state and lock it.

[0031] If the interval needs to be adjusted, the position of the corresponding bridge 2 can be adjusted separately (fine adjustment along the 4-axis of the neck, maintaining an interval of 2-5cm). The position of bridge 2 is fixed by the non-slip velvet and the arc-shaped support groove to achieve independent interval adjustment of the inner and outer strings until the requirement of playing a perfect fifth interval is met.

[0032] During performance, the operator places the curved surface of the piano base 5 against their abdomen or legs, and the ergonomic design of the piano base 5 enhances the comfort of holding the piano. When the strings are plucked, the vibration of the strings is transmitted to the piano body 3 through the bridge 6. The tone is amplified through the annular resonance groove of the piano body 3 and the characteristics of high-quality wood, ultimately presenting a rich and clear fifth interval performance effect.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A double-bridged fifth-degree string Henan opera banhu, comprising a Henan opera banhu body (1), a bridge (2) installed on the Henan opera banhu body (1) to change the traditional fourth-degree string to a fifth-degree string and to support the strings, characterized in that, The Henan opera banhu body (1) includes a soundbox (3) and a neck (4) installed on the soundbox (3). The jack (2) is installed on the neck (4). There are two jacks (2), one of which is used to support the outer string of the instrument, and the other jack (2) is used to support the inner string of the instrument.

2. The double-weighted, five-stringed Henan opera banhu according to claim 1, characterized in that: A saddle (5) is installed on the soundbox (3), and the side of the saddle (5) away from the soundbox (3) is arc-shaped. A bridge (6) is installed on the soundbox (3).

3. The double-weighted, five-stringed Henan opera banhu according to claim 1, characterized in that: The base (5) and the neck (4) are both equipped with fixing posts (7) for fixing the strings.

4. A double-weighted, five-stringed Henan opera banhu according to claim 1, characterized in that: The two sets of strings on the main body (1) of the Henan opera banhu are embedded in the string grooves of the bridge (2) and the bridge (6) from top to bottom.

Images