Bamboo-wrapped wood flute

Abstract

The utility model relates to a bamboo-wrapped wood flute, which comprises a tube body, a blowing hole, a film hole, a finger hole, a fundamental tone hole and a sound outlet hole are arranged on the tube body, and a flute film is adhered to the film hole, and is characterized in that the tube body comprises an outer tube and an inner tube, the outer tube is made of bamboo pole materials, the inner tube is made of dalbergia huangshanensis wood, an axial cylindrical through hole is arranged in the outer tube, and the outer tube is provided with a through hole. The inner pipe is a cylindrical inner pipe, the outer diameter of the inner pipe is matched with the inner diameter of the cylindrical through hole in the outer pipe, the inner pipe is sleeved with the outer pipe, the outer pipe is fixedly connected with the inner pipe in a bonding mode through glue, and a conical hole is formed in the inner pipe in the axial direction. The bamboo-wrapped wood flute provided by the utility model has high timbre and intonation, and the sounding quality of the flute is improved.

Description

Technical Field

[0001] This utility model relates to the field of flute manufacturing technology, and in particular to a bamboo-wrapped wooden flute with an outer bamboo tube and an inner tube of rosewood. Background Technology

[0002] Traditional bamboo flutes are made from bamboo tubes, and they are known for their loud, clear, and melodious sound. However, making a bamboo flute requires not only selecting bamboo of the desired outer diameter but also rigorously screening for high-quality bamboo free from cracks or damage. Therefore, choosing high-quality bamboo is not easy. Multiple sound holes are drilled into the bamboo tube. Because the structural dimensions of each bamboo stalk are not exactly the same, achieving perfect pitch requires grinding the inner cavity of the bamboo. However, while grinding the inner cavity to a certain extent may achieve the desired pitch, it alters the tone. Thus, it is difficult to achieve both perfect pitch and tone in a bamboo flute. Furthermore, many flutes develop cracks due to moisture loss during storage, causing leakage and inaccurate sound.

[0003] In the existing technology, some solutions use wood or plastic to make flutes, but the texture of the flutes made is completely different from that of traditional bamboo flutes. For example, patent CN2783479Y discloses a wooden flute, the entire flute body is made of wood, the wood is imported high-quality wood, such as precious sandalwood, the production cost is very high, and its texture is completely different from that of bamboo flutes.

[0004] Some existing flutes are made using composite materials. For example, patent CN 204480649 discloses a flute that can produce harmonious sounds. The outer layer of the flute tube is made of wood, and the inner layer is made of bamboo. The outer wooden tube is fitted over the outer bamboo tube and glued together to form a single structure. The purpose of this flute design is to protect the bamboo tube, prevent it from cracking, and extend the flute's lifespan. However, it does not solve the problem of the difficulty in achieving both good tone and accurate pitch in bamboo flutes. Summary of the Invention

[0005] The purpose of this invention is to address the problems in the existing technology where flutes are made of precious wood, resulting in high costs and a different texture compared to bamboo flutes. Flutes made by attaching a wooden tube to the outside of a bamboo tube require high-quality bamboo, making it difficult to select high-quality bamboo tubes. Moreover, this solution can only prevent the bamboo tube from cracking and cannot solve the problem of the difficulty in achieving both tone and pitch in bamboo flutes. The invention provides a bamboo-wrapped wooden flute.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A manufacturing process for a bamboo-wrapped wooden flute: The bamboo-wrapped wooden flute comprises a tube body with a blowhole, a membrane hole, finger holes, a fundamental tone hole, and a sound outlet hole. A flute membrane is attached to the membrane hole. The tube body comprises an outer tube and an inner tube. The outer tube is made of bamboo, and the inner tube is made of rosewood. The outer tube has an axial cylindrical through-hole, and the inner tube is cylindrical. The outer diameter of the inner tube matches the inner diameter of the cylindrical through-hole in the outer tube. The outer tube is fitted over the inner tube and fixedly connected by adhesive. A conical hole is provided axially in the inner tube.

[0008] In the above scheme, the difference in inner diameter between the head and tail of the tapered hole is 0.5mm to 2.5mm.

[0009] In the above scheme, the length of the tube body is 40-75cm, the outer diameter of the outer tube is 16-25mm, the inner diameter of the outer tube is 15-23mm, the outer diameter of the inner tube is the same as the inner diameter of the outer tube, the inner diameter at the beginning of the inner tube is 14-20mm, and the inner diameter at the end of the inner tube is 12-18mm.

[0010] In the above scheme, the tube head is fitted with a flute head, the tube body is inlaid with cow horn and copper sleeve, the outer wall of the tube body is coated with shellac and paint, and the tube body is provided with binding wire and engraving.

[0011] This invention has the following positive effects: 1) The bamboo-wrapped wooden flute of this invention comprises an outer tube and an inner tube. The outer tube is made of bamboo, and the inner tube is made of rosewood. Tests have shown that the sound produced by the rosewood inner tube is essentially the same as that of the bamboo tube. Therefore, using rosewood for the inner tube ensures the flute's tone. Furthermore, the processing of the inner cavity also ensures accurate pitch. Thus, the bamboo-wrapped wooden flute produced in this way possesses both excellent tone and accurate pitch, improving the flute's overall sound quality. 2) Since the bamboo-wrapped wooden flute of this invention uses the rosewood inner tube as the sound-producing part, the influence of the bamboo material on the flute's sound production does not need to be considered when selecting bamboo. Bamboo tubes with minor cracks or flaws can be selected, lowering the selection criteria and broadening the range of bamboo materials available. 3) Compared with existing wooden flutes made solely from precious wood, the cost of the bamboo-wrapped wooden flute of this utility model is significantly reduced. Moreover, the wooden tube is not easily worn during use, so the bamboo-wrapped wooden flute can be used for a long time without deteriorating the sound quality, which greatly extends its service life. At the same time, because the bamboo-wrapped wooden flute retains the texture and feel of a bamboo flute, it feels exactly the same as a bamboo flute when played, improving the user experience. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the bamboo-wrapped wooden flute of this utility model.

[0013] Figure 2 This is a cross-sectional schematic diagram of the bamboo-wrapped wooden flute of this utility model.

[0014] The attached diagram is labeled as follows: tube body 1, blowhole 2, membrane hole 3, finger hole 4, fundamental tone hole 5, sound hole 6, flute membrane 7, ox horn 8, binding thread 9, outer tube 10, inner tube 11, conical hole 12. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below through embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] like Figure 1 As shown, the bamboo-wrapped wooden flute of this utility model includes a tube body 1, on which a blowhole 2, a membrane hole 3, a finger hole 4, a fundamental tone hole 5, and a sound outlet hole 6 are provided. A flute membrane 7 is attached to the membrane hole 3. These structures can adopt existing flute structures. The improvement mainly lies in the improvement of the tube body, which will be described in detail below.

[0017] like Figure 2 As shown, the tube body 1 includes an outer tube 10 and an inner tube 11. The outer tube 10 is made of bamboo, and the inner tube 11 is made of rosewood. The outer tube 10 has an axial cylindrical through hole, and the inner tube 11 is a cylindrical inner tube. The outer diameter of the inner tube 11 matches the inner diameter of the cylindrical through hole in the outer tube 10. The outer tube 10 is sleeved on the outside of the inner tube 11 and is fixedly connected by glue. A conical hole 12 is provided in the inner tube 11 along the axial direction. The difference in inner diameter between the head and tail of the conical hole 12 is 0.5mm to 2.5mm. The head of the conical hole 12 refers to the end near the blow hole, and the tail of the conical hole refers to the end near the sound hole.

[0018] The dimensions of tube 1 can be designed according to needs. For example, taking the D-key flute as an example, the inner tube is made of rosewood with a tapered inner diameter. The inner diameter of the head (blowhole) is 16.8-17.2 mm, and the inner diameter of the tail (fundamental tone hole) is 14.8-15.2 mm. The effective length of the inner tube is 480 mm. The outer diameter of the inner tube is the same as that of the outer tube, with an outer diameter of 17.5-18.5 mm. The outer diameter of the head (blowhole) of the outer tube is 20-21 mm, and the outer diameter of the tail (fundamental tone hole) is 18-19 mm. The effective length of the outer tube is 480 mm.

[0019] For flutes in other keys, the design can be tailored to the size requirements of the flute, and this size adjustment is easy to achieve.

[0020] To further improve the performance of the bamboo-wrapped wooden flute, a flute head can be attached to the head of the tube 1, cow horn 8 can be inlaid on the tube 1, a copper sleeve can be set as needed, shellac and paint can be applied to the outer wall of the tube 1, and wire 9 and characters can be engraved on the tube 1.

[0021] The manufacturing process of the bamboo-wrapped wooden flute of this utility model includes the following steps:

[0022] S1. Select bamboo poles with suitable diameter and length that have been air-dried and stored for 2 years or more;

[0023] S2. Bake the selected bamboo poles on a stove and straighten them; the baking temperature is 1100℃~1300℃, for example, the baking temperature can be 1200℃.

[0024] S3. On a lathe, use an internal boring tool to machine the inner bore of the bamboo pole material to the required inner diameter size to make an outer tube; the inner bore machined in the outer tube is a straight hole;

[0025] S4. Select rosewood and process it into a cylindrical wooden rod on a lathe. The outer diameter of the cylindrical wooden rod matches the inner diameter of the outer tube.

[0026] S5. Insert the cylindrical wooden rod into the bamboo tube and glue it in place. Let it stand for a sufficient time to allow the cylindrical wooden rod to better adhere and bond with the outer tube.

[0027] S6. Use a reamer to machine an inner hole in the cylindrical wooden rod, and make the size of the inner hole meet the inner diameter requirements of the flute; the inner hole machined in the cylindrical wooden rod is a conical hole, and the difference in inner diameter between the head and tail of the conical hole is 0.5mm to 2.5mm, for example, it can be set to 1mm or 2mm.

[0028] S7. Determine the fundamental tone size based on the inner diameter of the inner bore machined in the cylindrical wooden rod, then open the blow hole, membrane hole, finger hole, fundamental tone hole and sound hole, and install the flute membrane and tune it to obtain a bamboo-wrapped wooden flute.

[0029] The above solution also includes step S8, which performs post-processing on the flute from step S7. This includes attaching the mouthpiece, inlaying horn, attaching a brass sleeve, applying shellac to the flute body, painting, binding with thread, and engraving. Post-processing can improve the flute's performance, extend its lifespan, and enhance its appearance.

[0030] The bamboo-wrapped wooden flute made according to this invention was tested against existing bamboo flutes and wooden-wrapped bamboo flutes. The test results showed that the bamboo-wrapped wooden flute made according to this invention not only meets the pitch requirements, but also has a very good tone. In contrast, existing bamboo flutes and wooden-wrapped bamboo flutes can only meet one of the tone requirements or the pitch requirements. It is impossible to achieve both tone and pitch in a flute.

[0031] This utility model discloses a bamboo-wrapped wooden flute, the body of which includes an outer tube and an inner tube. The outer tube is made of bamboo, and the inner tube is made of rosewood. Because tests have shown that the sound of the rosewood inner tube is basically the same as that of the bamboo tube, the use of rosewood for the inner tube can ensure the flute's tone. Furthermore, the processing of the inner cavity can also ensure its pitch accuracy. Therefore, the bamboo-wrapped wooden flute made in this way can have both excellent tone and pitch accuracy, thus improving the flute's sound quality.

[0032] The bamboo-wrapped wooden flute of this invention uses a rosewood inner tube as the sound-producing part. Therefore, when selecting bamboo, there is no need to consider the influence of the bamboo on the flute's sound. Bamboo tubes with minor cracks or flaws can be selected, which can lower the selection criteria for bamboo and broaden the range of bamboo to choose from.

[0033] Compared with existing wooden flutes made solely from precious wood, the cost of this bamboo-wrapped wooden flute is significantly reduced. Moreover, the wooden tube is not easily worn during use, so the bamboo-wrapped wooden flute can be used for a long time without deteriorating sound quality, greatly extending its service life. At the same time, because the bamboo-wrapped wooden flute retains the texture and feel of a bamboo flute, it feels exactly the same as a bamboo flute when played, improving the user experience.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bamboo-wrapped wooden flute, comprising a tube body, a blowing hole, a membrane hole, a finger hole, a fundamental hole and an outlet hole are arranged on the tube body, and a flute membrane is attached to the membrane hole, characterized in that, The pipe body comprises an outer pipe and an inner pipe, the outer pipe is made of bamboo pole material, the inner pipe is made of Dalbergia material, the outer pipe is provided with an axial cylindrical through hole, the inner pipe is a cylindrical inner pipe, the outer diameter of the inner pipe matches the inner diameter of the cylindrical through hole in the outer pipe, the outer pipe is sleeved outside the inner pipe and is fixedly connected by adhesive bonding, and a tapered hole is arranged in the inner pipe in the axial direction.

2. The bamboo flute according to claim 1, wherein: The difference between the inner diameters of the head and tail of the tapered hole is 0.5mm-2.5mm.

3. The bamboo flute according to claim 1, wherein: The length of the pipe body is 40-75cm, the outer diameter of the outer pipe is 16-25mm, the inner diameter of the outer pipe is 15-23mm, the outer diameter of the inner pipe is the same as the inner diameter of the outer pipe, the inner diameter of the inner pipe at the pipe head is 14-20mm, and the inner diameter of the inner pipe at the pipe tail is 12-18mm.

4. The bamboo flute according to claim 1, wherein: The pipe head of the pipe body is sleeved with a flute head, the pipe body is inlaid with a horn and a copper sleeve, the outer wall of the pipe body is coated with shellac and paint, and the pipe body is provided with a string and characters.

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