Rapid stepless tone modifying mechanism for banhu fiddle

Abstract

The utility model relates to the technical field of Banhu instruments, in particular to a rapid stepless tone modifying mechanism for Banhu. The utility model relates to a Banhu rapid stepless tone modifying mechanism, which comprises a rod, a slide rail arranged on the front surface of the rod, a jack sliding groove in sliding fit with the slide rail, a jack fixedly connected with the upper end of the jack sliding groove, and a brake mechanism arranged at the lower end of the jack sliding groove. According to the utility model, the rod, the slide rail, the jack sliding groove, the jack, the brake mechanism and the like are matched, when the tone is not modified, the brake mechanism plays a role in braking, the jack sliding groove cannot slide, and the jack cannot move, and when the tone is required to be modified, the brake mechanism is loosened, and the jack sliding groove slides to drive the jack to move, so that stepless tone modification is realized; in the using process, a user only needs to control the brake mechanism with the left hand and hold the jack sliding groove for operation to achieve rapid tone modification, operation is quite convenient, the playing technology of the banhu fiddle is greatly improved, development of Chinese opera music tonality can be promoted, and the playing effect cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of banhu musical instruments, and particularly relates to a rapid stepless pitch-changing mechanism for banhu. Background Art

[0002] Banhu is the most representative bowed musical instrument among Chinese national musical instruments. It can not only play songs, solo pieces, etc., but also is the main accompanying (main string) instrument for many Chinese opera genres, and has formed its own unique style in long-term artistic practice. With the continuous development of the art level of banhu, people increasingly need to play banhu in different keys. In the past, some people have tried to change the pitch by changing the tension of the strings, but since the strings are made of steel wire and are extremely easy to break, this method is not advisable; some people have also tried to achieve pitch change by making several sliding weights or other methods, but these methods have slow pitch change, require both hands to move, and are very cumbersome during the performance process, greatly affecting the performance effect.

[0003] Therefore, it is necessary to provide a rapid stepless pitch-changing mechanism for banhu. Summary of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides a rapid stepless pitch-changing mechanism for banhu.

[0005] The technical solution adopted by the utility model is: a rapid stepless pitch-changing mechanism for banhu, including a fiddle stick, on the front of which a slide rail is provided, on which a sliding weight groove is slidably fitted, at the upper end of the sliding weight groove a sliding weight is fixedly connected, and at the lower end a braking mechanism is provided.

[0006] To better implement the utility model, the braking mechanism includes a pressing plate and a braking plate, between which a connecting plate is connected, and at one end of the pressing plate an elastic reset plate connected to the sliding weight groove is provided; at a corresponding position on the slide rail a notch for the braking plate to pass through is provided.

[0007] To better implement the utility model, braking teeth for increasing braking friction are provided on the side of the slide rail.

[0008] To better implement the utility model, a serrated structure cooperating with the braking teeth is provided on the braking plate.

[0009] To better implement the utility model, the elastic reset plate is made of thin steel plate.

[0010] To better implement the utility model, tuning name scale lines are provided on the fiddle stick.

[0011] To better implement the utility model, the fiddle stick is square.

[0012] To better implement the present utility model, the edges of the slide rail and the edges of the pressing plate are both designed to be smooth.

[0013] The beneficial effects of the present utility model are reflected in: the cooperation of the fingerboard, slide rail, sliding groove for the nut, nut and braking mechanism, etc. of the present utility model. When not changing the pitch, the braking mechanism plays a braking role, the sliding groove for the nut cannot slide, and the nut cannot move. When it is necessary to change the pitch, loosen the braking mechanism, slide the sliding groove for the nut to drive the nut to move, so as to achieve stepless pitch change. During the use process, only the left hand needs to control the braking mechanism and hold the sliding groove for the nut to operate to perform rapid pitch change, and the operation is quite convenient. It not only greatly improves the playing technique of the banhu, but also promotes the expansion of the tonality of opera music without affecting the playing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0015] Figure 1 It is a schematic structural diagram of a state of the rapid stepless pitch change mechanism of the banhu of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of another state of the rapid stepless pitch change mechanism of the banhu of the present utility model;

[0017] In the drawings, 1 - fingerboard, 2 - slide rail, 3 - sliding groove for the nut, 4 - braking mechanism, 5 - nut, 6 - braking teeth, 7 - pitch indication arrow, 8 - pitch name scale line, 9 - connecting plate, 10 - pressing plate, 11 - elastic reset plate, 12 - braking plate, 13 - serrated structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will describe in detail the embodiments of the technical solutions of the present utility model with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Usually, the components of the embodiments of the present disclosure described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] In the description of the present disclosure, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "inner" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the disclosed product is usually placed during use. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present disclosure. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present disclosure, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0022] It should be noted that unless otherwise stated, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art of the present utility model.

[0023] Embodiment:

[0024] As Figure 1 、 Figure 2 shown, the quick stepless tone-changing mechanism of the banhu of the present utility model includes a fiddle stick 1. A slide rail 2 is provided on the front surface of the fiddle stick 1. A sliding groove for the nut 3 is slidably fitted on the slide rail 2. A nut 5 is fixedly connected to the upper end of the sliding groove for the nut 3, and a braking mechanism 4 is provided at the lower end. With the cooperation of the fiddle stick 1, the slide rail 2, the sliding groove for the nut 3, the nut 5, and the braking mechanism 4 of the present utility model, when not changing the tone, the braking mechanism 4 plays a braking role, the sliding groove for the nut 3 cannot slide, and the nut 5 cannot move. When it is necessary to change the tone, release the braking mechanism 4, slide the sliding groove for the nut 3 to drive the nut 5 to move, so as to achieve stepless tone change. During the use process, only the left hand needs to control the braking mechanism 4 and hold the sliding groove for the nut 3 to operate to perform quick tone change. The operation is quite convenient, which not only greatly improves the playing technique of the banhu, but also promotes the expansion of the tonalities of traditional Chinese opera music without affecting the playing effect. It should be noted that as shown in the figure, the gap between the slide rail 2 and the fiddle stick 1 is relatively large. In this embodiment, it is for the convenience of clearly showing the cooperation structure of each component. In the actual product, the gap between the slide rail 2 and the fiddle stick 1 is quite small, and during manufacturing, it is designed based on the smallest gap that can slide smoothly.

[0025] The utility model relates to the technical field of banhu musical instruments, and particularly relates to a rapid stepless pitch-changing mechanism for banhu. A slide rail 2 is fixed on the fiddle stick 1. A braking tooth 6 is arranged on one side of the slide rail 2. The front surface of the slide rail 2 is provided with tuning name graduation lines 8 engraved with the tuning names used by the banhu. A sliding groove 3 for the yoke is slidably fitted on the slide rail 2. A yoke 5 is fixed on the sliding groove 3 for the yoke. An elastic reset plate 11 is fixed under the sliding groove 3 for the yoke. The elastic reset plate 11 is connected with a pressing plate 10. The pressing plate 10 is connected with a braking plate 12 through a connecting plate 9. A sawtooth structure 13 matched with the braking tooth 6 is arranged on the braking plate 12. When the pressing plate 10 is not pressed, the braking tooth 6 and the sawtooth structure 13 are automatically engaged under the elastic action of the elastic reset plate 11, and the yoke is tightly fixed at the required position. When the pressing plate 10 is pressed by the left thumb, the braking tooth 6 and the sawtooth structure 13 are automatically separated. At this time, by pushing the sliding groove 3 for the yoke up and down, the purpose of rapid stepless pitch-changing of the banhu can be achieved. This technology is simple to operate, convenient and practical. Without affecting the playing skills and without changing the playing method, it preferably solves the problem of rapid pitch-changing of banhu and similar musical instruments, enriches the expressiveness of the musical instruments, provides more convenience and possibilities for the performers, and has an inestimable effect on exploring the potential of the musical instruments and promoting the expansion of the tonality of traditional opera music.

[0026] As a preferred embodiment, the braking mechanism 4 includes a pressing plate 10 and a braking plate 12. A connecting plate 9 is connected between the pressing plate 10 and the braking plate 12. One end of the pressing plate 10 is provided with an elastic reset plate 11 connected with the sliding groove 3 for the yoke. A notch for the convenient passage of the braking plate 12 is arranged at a corresponding position on the slide rail 2. After such a design, when not in pitch-changing, the elastic reset plate 11 uses elasticity to keep the pressing plate 10 in an expanded state. The braking plate 12 contacts the side surface of the slide rail 2 and is braked by static friction. When pitch-changing is needed, use the left hand finger to press the pressing plate 10 to overcome the elasticity of the elastic reset plate 11, move the connecting plate 9, so that the braking plate 12 is separated from the side surface of the slide rail 2. At this time, the sliding groove 3 for the yoke can be moved according to requirements. After reaching the position, release the pressing plate 10 to make the braking plate 12 contact the slide rail 2 again for braking. The operation is simple, fast and accurate, so as to achieve the purpose of rapid stepless pitch-changing, which is convenient and practical and provides more convenience and possibilities for the performers.

[0027] As a preferred embodiment, a braking tooth 6 for increasing the braking friction is arranged on the side part of the slide rail 2. After such a design, the static friction between the braking plate 12 and the slide rail 2 is greatly increased, the braking effect is increased, and the stability of the yoke 5 is improved.

[0028] As a preferred embodiment, a serrated structure 13 that cooperates with the braking teeth 6 is provided on the braking plate 12. After such design, when braking, the serrated structure 13 on the braking plate 12 cooperates with the braking teeth 6, further enhancing the braking effect. Without separation between the two, it is impossible to slide the jack sliding groove 3 by brute force.

[0029] As a preferred embodiment, the elastic reset plate 11 is made of a thin steel plate. As a preferred embodiment, tuning name scale lines 8 are provided on the fingerboard 1, and tuning name indicating arrows 7 for indicating the tuning name scale lines 8 are provided on the jack sliding groove 3. After such design, the user can conveniently observe the tuning name scale lines 8 and quickly move the jack sliding groove 3 and the jack 5 to the position where tuning is required. The tuning name indicating arrows 7 can conveniently indicate the tuning name.

[0030] As a preferred embodiment, the fingerboard 1 is square.

[0031] As a preferred embodiment, the edges of the slide rail 2 and the edges of the pressing plate 10 are both designed to be smooth. After such design, it can avoid scratching the user's hand and improve safety.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. Banhu fast stepless pitch change mechanism, characterized by: The invention comprises a piano bar (1), a slide rail (2) is arranged on the front of the piano bar (1), a jack sliding groove (3) is slidably matched on the slide rail (2), a jack (5) is fixedly connected to the upper end of the jack sliding groove (3), and a brake mechanism (4) is arranged at the lower end.

2. The Banhu fast stepless pitch changing mechanism according to claim 1, characterized in that: The braking mechanism (4) comprises a pressing plate (10) and a braking plate (12), wherein a connecting plate (9) is connected between the pressing plate (10) and the braking plate (12), and an elastic reset plate (11) connected to the jack sliding groove (3) is provided at one end of the pressing plate (10); and a notch is provided at a corresponding position on the slide rail (2) to facilitate the passage of the braking plate (12).

3. The Banhu fast stepless pitch changing mechanism according to claim 2, characterized in that: Braking teeth (6) for increasing braking friction are arranged on the side of the slide rail (2).

4. The Banhu fast stepless pitch changing mechanism according to claim 3, characterized in that: The brake plate (12) is provided with a sawtooth structure (13) that matches the brake teeth (6).

5. The Banhu fast stepless pitch changing mechanism according to claim 4, characterized in that: The elastic reset plate (11) is made of a thin steel plate.

6. The Banhu fast stepless pitch changing mechanism according to claim 5, characterized in that: The piano bar (1) is provided with a tuning scale line (8).

7. The Banhu fast stepless pitch changing mechanism according to claim 6, characterized in that: The piano bar (1) is square.

8. The Banhu fast stepless pitch changing mechanism according to claim 7, characterized in that: The edges of the slide rail (2) and the edges of the pressing plate (10) are both rounded in design.

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