Duplex pipe
By designing a dual tone tube set at parallel intervals, combining specific tone-press and tone-set holes, the problem of scale blurring of traditional Li musical instruments is solved, and the range expansion and accurate tone output is achieved, supporting multiple performance methods and mass production.
Patent Information
- Application Number
- CN202421740162.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The traditional Li nationality musical instrument lacks unified production standards, the scale is unclear and the range is not wide, making it difficult to achieve accurate tone output, and it is difficult to ensemble with other folk music.
The two-tone tube forms with different modes are arranged in parallel intervals. The design of six sound holes and four tone-setting holes is combined with sound tubes of specific length and inner diameter to achieve the expansion of the range and scale, and the material specifications and sizes are standardized.
It realizes the expansion of the range and scale, can accurately output tone, supports solo, ensemble and lead, adapts to the performance needs of different modes of music, and is conducive to mass production.
Smart Images

Figure CN223140366U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of folk musical instruments, and relates to a musical instrument with Li ethnic characteristics, specifically a double-tube made of long-joint slippery bamboo growing in the Li ethnic area of Hainan. Background Technique
[0002] Li ethnic traditional musical instruments made from rich bamboo and wood resources in the folk have a long history. Common Li ethnic traditional musical instruments mainly include single-drum, dingdong wood, nose flute, mouth bow, lieli, koubai, dongshao, bida, etc. Among them, bidda is a vertical double-tube single-reed wind instrument, rich in strong ethnic characteristics, and is tied together by two bamboo tubes side by side, also known as double-tube or Li ethnic panpipe.
[0003] Since the Li ethnic panpipe is a pure hand-made product, folk artists make it based on their understanding of musical instruments. There is no unified production standard, and the material specifications, sizes, shapes, etc. used are all different. The scales are blurred and unclear, the pitch range is not wide, and it can be used for general self-entertainment. It cannot be played in ensemble with various folk music, and it is difficult to achieve accurate pitch output. Content of the Utility Model
[0004] The purpose of the utility model is to provide a double-tube, which adopts the form of double-tone tubes with different modes arranged side by side at intervals, facilitating the musician to transpose during performance. Combining six fingering holes with four tuning holes can effectively increase the pitch range and scales, with a broad pronunciation, achieve accurate pitch output, and can be used for solo, ensemble, leading performance, etc. Moreover, standardizing the material specifications, sizes, and shapes is conducive to realizing batch industrial production.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A double-tube includes sound tubes. A plug is arranged at the top of the sound tubes to block the tube orifices. A blowing tube communicating with the inside of the sound tubes is arranged at the upper part of the sound tubes. A sounding hole is arranged on the sound tubes below the blowing tube. Six fingering holes are sequentially opened on the back side below the sounding hole, which are the sixth fingering hole, the fifth fingering hole, the fourth fingering hole, the third fingering hole, the second fingering hole, and the first fingering hole from top to bottom. Four tuning holes are opened on the same side as the sounding hole below the first fingering hole, which are the first tuning hole, the second tuning hole, the third tuning hole, and the fourth tuning hole from top to bottom. A rear sound hole is opened below the fourth tuning hole; the sound tubes include a left sound tube and a right sound tube, and the left sound tube and the right sound tube are arranged side by side at intervals without affecting the playing of the left sound tube or the right sound tube. During performance, put the blowing tube into the mouth, and different scales and rhythms of music can be played through the fingering holes.
[0007] By adjusting the length of the sound pipe, the inner diameter, the aperture of the fingering hole, the spacing between the fingering holes, etc., sound pipes of different modes can be obtained. By arranging the sound pipes of different modes side by side at intervals to form a double-pipe, music of different modes can be played on the spot according to the performance requirements.
[0008] Correspondingly, the sound pipe is 60 - 70 cm in length and 1.7 - 2.2 cm in inner diameter; the center distance from the blowing pipe to the sounding hole is 5.5 - 6.5 cm, the center distance from the sounding hole to the sixth fingering hole is 13 - 14 cm, the center distance from the sixth fingering hole to the fifth fingering hole is 1.5 - 2.0 cm, the center distance from the fifth fingering hole to the fourth fingering hole is 1.8 - 2.5 cm, the center distance from the fourth fingering hole to the third fingering hole is 2.0 - 2.5 cm, the center distance from the third fingering hole to the second fingering hole is 1.3 - 1.7 cm, the center distance from the second fingering hole to the first fingering hole is 2.3 - 2.7 cm, the center distance from the first fingering hole to the tuning hole is 3.0 - 4.0 cm, the center distance between adjacent tuning holes is 1.3 - 1.7 cm, and the center distance from the fourth tuning hole to the rear sounding hole is 8 - 15 cm, thus obtaining a sound pipe in the F mode.
[0009] Correspondingly, the sound pipe is 60 - 70 cm in length and 1.6 - 2.0 cm in inner diameter; the center distance from the blowing pipe to the sounding hole is 5.5 - 6.5 cm, the center distance from the sounding hole to the sixth fingering hole is 12 - 13 cm, the center distance from the sixth fingering hole to the fifth fingering hole is 1.6 - 2.0 cm, the center distance from the fifth fingering hole to the fourth fingering hole is 2.6 - 3.0 cm, the center distance from the fourth fingering hole to the third fingering hole is 1.8 - 2.2 cm, the center distance from the third fingering hole to the second fingering hole is 1.3 - 1.7 cm, the center distance from the second fingering hole to the first fingering hole is 2.3 - 2.7 cm, the center distance from the first fingering hole to the tuning hole is 3.5 - 4.5 cm, the center distance between adjacent tuning holes is 1.3 - 1.7 cm, and the center distance from the fourth tuning hole to the rear sounding hole is 9 - 14 cm, thus obtaining a sound pipe in the G mode.
[0010] Furthermore, the plug is an ornament, such as a bamboo pole, etc., which can not only block the pipe orifice but also serve as a special decoration.
[0011] Furthermore, the blowing pipe is 20 - 25 cm in length and 0.8 - 1 cm in inner diameter.
[0012] The utility model can effectively improve the pitch range and scale with six fingering holes combined with four tuning holes, featuring a broad pronunciation range and achieving accurate pitch output. It can be used for solo, ensemble, leading performance, etc. Adopting the form of double pipes with different modes arranged side by side at intervals, it is convenient for musicians to transpose during performance and can play music in different modes according to performance needs on-site. At the same time, standardizing the material specifications, dimensions, and shapes is conducive to realizing batch industrial production. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of the utility model.
[0014] In the figure: 1, sound pipe; 2, ornament; 3, left sound pipe; 4, right sound pipe; 5, blowing pipe; 6, sounding hole; 7, sixth fingering hole; 8, fifth fingering hole; 9, fourth fingering hole; 10, third fingering hole; 11, second fingering hole; 12, first fingering hole; 13, first tuning hole; 14, second tuning hole; 15, third tuning hole; 16, fourth tuning hole; 17, rear sounding hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following further illustrates the utility model through examples in conjunction with the drawings, but it is not intended to limit the utility model.
[0016] In Figure 1 the shown structure, the double pipes designed by the utility model include a sound pipe 1 made of long-joint slippery bamboo growing in the mountainous areas of Li nationality in Hainan, with a length of 60 - 70 cm. A bamboo stopper is provided at the top of the sound pipe 1 as an ornament 2, which can not only block the pipe orifice but also serve as a special decoration. A blowing pipe 5 communicating with the inside of the sound pipe is provided at the upper part of the sound pipe. The blowing pipe is 20 - 25 cm long and has an inner diameter of 0.8 - 1 cm. A sounding hole 6 is provided on the sound pipe below the blowing pipe. Six fingering holes are sequentially opened on the back side below the sounding hole, which are the sixth fingering hole 7, fifth fingering hole 8, fourth fingering hole 9, third fingering hole 10, second fingering hole 11, and first fingering hole 12 from top to bottom. Four tuning holes are opened on the same side as the sounding hole below the first fingering hole, which are the first tuning hole 13, second tuning hole 14, third tuning hole 15, and fourth tuning hole 16 from top to bottom. A rear sounding hole 17 is opened below the fourth tuning hole. By selecting sound pipes 1 with different inner diameters and determining the distances between the sounding hole, fingering holes, tuning holes, and rear sounding hole, sound pipes of different modes can be obtained. The sound pipe 1 includes left sound pipes 3 and right sound pipes 4 of different modes. The left sound pipe 3 and the right sound pipe 4 are arranged side by side at an interval of 5 cm to form a double-pipe structure, which is convenient for musicians to transpose during performance and can play music in different modes according to performance needs on-site.
[0017] When implementing the present utility model, the left sound pipe is made into the key of F: the length of the sound pipe is 60 - 70 cm, the inner diameter is 1.7 - 2.2 cm, the distance from the blowing pipe to the sounding hole is 6 cm, the distance from the sounding hole to the sixth fingering hole is 13 cm, the distance from the sixth fingering hole to the fifth fingering hole is 1.7 cm, the distance from the fifth fingering hole to the fourth fingering hole is 2 cm, the distance from the fourth fingering hole to the third fingering hole is 2.2 cm, the distance from the third fingering hole to the second fingering hole is 1.5 cm, the distance from the second fingering hole to the first fingering hole is 2.5 cm, the distance from the first fingering hole to the tuning hole is 3.5 cm, the distance between adjacent tuning holes is 1.5 cm, and the distance from the fourth tuning hole to the rear sound outlet is 8 - 15 cm.
[0018] When implementing the present utility model, the right sound pipe is made into the key of G: the length of the sound pipe is 60 - 70 cm, the inner diameter is 1.6 - 2 cm, the distance from the blowing pipe to the sounding hole is 6 cm, the distance from the sounding hole to the sixth fingering hole is 12 cm, the distance from the sixth fingering hole to the fifth fingering hole is 1.8 cm, the distance from the fifth fingering hole to the fourth fingering hole is 2.7 cm, the distance from the fourth fingering hole to the third fingering hole is 2 cm, the distance from the third fingering hole to the second fingering hole is 1.5 cm, the distance from the second fingering hole to the first fingering hole is 2.5 cm, the distance from the first fingering hole to the tuning hole is 4 cm, the distance between adjacent tuning holes is 1.5 cm, and the distance from the fourth tuning hole to the rear sound outlet is 9 - 14 cm.
[0019] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.
Claims
1. A double tube, characterized in that: It includes a sound pipe. A plug is provided at the top of the sound pipe. A blowing pipe communicating with the inside of the sound pipe is provided in the upper part of the sound pipe. A sounding hole is provided on the sound pipe below the blowing pipe. Six fingering holes are sequentially opened on the back side below the sounding hole, which are the sixth fingering hole, the fifth fingering hole, the fourth fingering hole, the third fingering hole, the second fingering hole, and the first fingering hole from top to bottom. Four tuning holes are opened on the same side as the sounding hole below the first fingering hole, which are the first tuning hole, the second tuning hole, the third tuning hole, and the fourth tuning hole from top to bottom. A rear sounding hole is opened below the fourth tuning hole; the sound pipe includes a left sound pipe and a right sound pipe, and the left sound pipe and the right sound pipe are arranged in parallel at intervals.
2. The double-tube according to claim 1, characterized in that: The sound pipe is 60 - 70 cm long and has an inner diameter of 1.7 - 2.2 cm; the center distance from the blowing pipe to the sounding hole is 5.5 - 6.5 cm, the center distance from the sounding hole to the sixth fingering hole is 13 - 14 cm, the center distance from the sixth fingering hole to the fifth fingering hole is 1.5 - 2.0 cm, the center distance from the fifth fingering hole to the fourth fingering hole is 1.8 - 2.5 cm, the center distance from the fourth fingering hole to the third fingering hole is 2.0 - 2.5 cm, the center distance from the third fingering hole to the second fingering hole is 1.3 - 1.7 cm, the center distance from the second fingering hole to the first fingering hole is 2.3 - 2.7 cm, the center distance from the first fingering hole to the tuning hole is 3.0 - 4.0 cm, the center distance between adjacent tuning holes is 1.3 - 1.7 cm, and the center distance from the fourth tuning hole to the rear sounding hole is 8 - 15 cm, obtaining a sound pipe of F key.
3. The double tube according to claim 1, characterized in that: The sound pipe is 60 - 70 cm long and has an inner diameter of 1.6 - 2.0 cm; the center distance from the blowing pipe to the sounding hole is 5.5 - 6.5 cm, the center distance from the sounding hole to the sixth fingering hole is 12 - 13 cm, the center distance from the sixth fingering hole to the fifth fingering hole is 1.6 - 2.0 cm, the center distance from the fifth fingering hole to the fourth fingering hole is 2.6 - 3.0 cm, the center distance from the fourth fingering hole to the third fingering hole is 1.8 - 2.2 cm, the center distance from the third fingering hole to the second fingering hole is 1.3 - 1.7 cm, the center distance from the second fingering hole to the first fingering hole is 2.3 - 2.7 cm, the center distance from the first fingering hole to the tuning hole is 3.5 - 4.5 cm, the center distance between adjacent tuning holes is 1.3 - 1.7 cm, and the center distance from the fourth tuning hole to the rear sounding hole is 9 - 14 cm, obtaining a sound pipe of G key.
4. The double-tube according to claim 1, characterized in that: The plug is an ornament.
5. The double-tube according to claim 1, characterized in that: The blowing pipe is 20 - 25 cm long and has an inner diameter of 0.8 - 1 cm.