A new type of calabash gourd
By using snakeskin and coconut shell conductors in the gourd-shaped erhu, the problem of the wood-board skin producing a sharp sound was solved, thus improving the sound quality and popularizing the instrument.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI TEACHERS EDUCATION UNIV
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
Smart Images

Figure CN224501472U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of musical instrument technology, specifically relating to a novel gourd-shaped erhu. Background Technology
[0002] The Hulu Hu is a bowed string instrument of the Zhuang and Buyi ethnic groups. In the Zhuang language, it is called Ranbu, where "Ran" is a general term for the Huqin (a type of bowed string instrument) and "Bu" means gourd, hence the name Hulu Hu (gourd-shaped bowed string instrument). It has a unique shape and a rich, deep tone, and is often used in instrumental ensembles or to accompany Zhuang and Buyi operas. It is popular in various counties of Baise region in western Guangxi Zhuang Autonomous Region, Zhenfeng, Xingyi, Anlong, Ceheng, and Wangmo counties in Qianxinan Buyi and Miao Autonomous Prefecture of Guizhou Province, and Funing County in Wenshan Zhuang and Miao Autonomous Prefecture of Yunnan Province.
[0003] The existing gourd-shaped erhu skins are made of wood, such as paulownia wood, which produces a high-pitched and sharp sound when played. Snake skin, however, is soft and produces a dull sound. This significantly hinders the promotion, popularization, and performance application of the gourd-shaped erhu. Utility Model Content
[0004] This utility model provides a novel gourd-shaped gourd to solve the above-mentioned technical problems.
[0005] To solve the above technical problems, the present invention adopts the following technical solution:
[0006] A novel gourd-shaped erhu uses a gourd as a resonator, with a neck and sound holes respectively. The bottom of the gourd is cut open to form an opening, which is sealed with a skin. An arc-shaped conductive element is provided inside the gourd, and a conductive hole is opened on the conductive element. The sound holes are spaced apart from the conductive element.
[0007] Furthermore, the gourd is divided into two areas: the larger end is the first area, and the smaller end is the second area; the side of the conductive element is attached to the inner wall of the first area; the sound hole is located in the second area.
[0008] Furthermore, there are N conductive holes, where N ≥ 1; when N = 1, the conductive hole is located on the horizontal centerline of the conductive element; when N > 1, there are 0 or 1 conductive holes located on the horizontal centerline of the conductive element, and the remaining conductive holes can be distributed at intervals around the horizontal centerline of the conductive element.
[0009] Furthermore, the conductive element is made of coconut shell with the outer skin removed; the coconut shell has a hemispherical structure with an outer diameter slightly smaller than the maximum inner diameter value of the first region.
[0010] Furthermore, the distance between the soundboard and the center of the sound hole is 13-20cm.
[0011] Furthermore, the distance between the soundboard and the center of the sound hole is 14-18cm.
[0012] Furthermore, a plurality of sound holes are provided; each of the sound holes is distributed at intervals around the outer periphery of the gourd in the second region.
[0013] Furthermore, the center point of each of the said sound holes is located on the same vertical cross-section of the second region.
[0014] Furthermore, there are four sound holes arranged in pairs; the center lines of the two pairs of sound holes are perpendicular to each other.
[0015] Furthermore, the gourd has a moisture content of ≤12% and its outer skin has been removed; the gourd wall thickness is 0.3-0.5cm.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. Existing gourd-shaped erhu skins are mainly made of wood, producing a high-pitched and shrill sound, which greatly limits the performance venues and audiences. This application, while changing the skin to snakeskin, also incorporates a conductive component made of coconut shell inside the gourd. Utilizing the heavy and hard nature of the coconut shell, and with its arc-shaped structure, it helps to reflect sound and generate resonance, thus making the sound more mellow and melodious. The coconut shell used is also fixed inside the gourd and provides support to the inner wall of the gourd.
[0018] 2. Through practical comparison, the sound hole opened in the second zone of the gourd using the aligned opening method can obtain a better penetration effect; moreover, the gourd wall thickness used in this application is 0.3-0.5cm, which can obtain a better resonance effect during use.
[0019] 3. The sound of the gourd fiddle in this application is mellow and melodious. Compared with the high-pitched and sharp sound of the existing gourd fiddle, it has a wider range of audiences and performance scenarios, and plays an important role in promoting and applying traditional Chinese musical instruments. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2This is a schematic diagram of the structure of a gourd.
[0023] Figure 3 This is a left view of a transmission component.
[0024] Figure 4 This is a left view of another type of conductor.
[0025] Figure 5 This is a longitudinal sectional view of the second zone.
[0026] Attached label: 1-Gourd, 11-Neck, 12-Sound hole, 13-Open mouth, 14-Skin, 15-First section, 16-Second section, 17-Support, 2-Conduction component, 21-Conduction hole, Neck hole 22. Detailed Implementation
[0027] To facilitate a better understanding of this utility model, the following examples are provided in conjunction with the accompanying drawings. These examples fall within the protection scope of this utility model, but do not limit the protection scope of this utility model.
[0028] Example 1
[0029] A new type of gourd seed, such as Figures 1-3 As shown, the gourd 1 is used as a resonating box, and a neck 11 and a sound hole 12 are respectively provided on it; the bottom of the gourd 1 is cut open to form an opening 13; the opening 13 is sealed by the skin 14; an arc-shaped conductive element 2 is provided inside the gourd 1; a conductive hole 21 is opened on the conductive element 2; the sound hole 12 and the conductive element 2 are spaced apart.
[0030] like Figures 1-2 As shown, gourd 1 has a moisture content of ≤12% and its outer skin has been removed; the gourd wall thickness is 0.3-0.5cm.
[0031] Cut a 5-8cm diameter opening at the bottom of the gourd and make a hole on the side for inserting the instrument neck; hollow out the gourd and leave a 0.3-0.5cm thick gourd wall to ensure good resonance when the soundbox is used.
[0032] As the core resonating component of the gourd, the gourd should ideally be made of hard, well-shaped material. After harvesting, the gourd should be air-dried in the shade to ensure a low moisture content, which prevents cracking after use and extends its lifespan.
[0033] Existing gourd-shaped erhu skins are made of wood, such as paulownia wood, which produces a rather dull sound. The skin of the erhu in this application is made of snakeskin. Since snakeskin is soft and has a dull tone, a conductive element is installed inside the gourd to improve the sound quality. The skin can be fixed to the gourd using existing technologies such as thin hemp rope or metal hoops to ensure a good seal at the joint.
[0034] The arc-shaped conductor has an arc-shaped structure with a conduction hole at one end of the arc protrusion. The arc-shaped structure has a better sound reflection effect and can generate resonance inside the gourd, making the sound quality of the gourd erhu more mellow and melodious. The conductor has a neck hole 22 on the upper and lower sides, so that the neck can pass through the gourd, extend into the gourd, pass through the conductor through the neck hole, and then pass out of the gourd and be fixed on the backing.
[0035] The gourd has holes for installing the instrument neck, and the size of the holes for the instrument neck on the transmission component matches the size of the instrument neck. After the instrument neck passes through the gourd, the end of the instrument neck can be fixed to the instrument stand by existing methods such as threaded connection or screw tightening. The holes for the instrument neck on the gourd are generally about 2cm away from the instrument skin, which is the existing setting.
[0036] When installing the skin, it needs to be covered and secured to the open end of the gourd. Since the larger end of the gourd has an open end and holes for installing the neck, the gourd is prone to breakage if the skin is not applied carefully. Therefore, the arc-shaped conductive component inside the gourd also serves to support the inner wall of the gourd, reducing the risk of the gourd breaking during the skin installation process.
[0037] Example 2
[0038] like Figures 1-2 As shown, the gourd 1 is divided into two areas: the larger end is the first area 15, and the smaller end is the second area 16; the side of the conductive element 2 is attached to the inner wall of the first area 15; the sound hole 12 is located on the second area 16.
[0039] like Figures 1-4 As shown, there are N conductive holes 21, where N ≥ 1. When N = 1, the conductive hole 21 is located on the horizontal center line of the conductive member 2. When N > 1, there are 0 or 1 conductive holes 21 located on the horizontal center line of the conductive member 2, and the remaining conductive holes 21 can be distributed at intervals around the horizontal center line of the conductive member 2.
[0040] like Figures 1-4 As shown, the conductive element 2 is made of coconut shell with the outer skin removed; the coconut shell has a hemispherical structure and its outer diameter is slightly smaller than the maximum inner diameter value of the first zone 15.
[0041] The conductive component is installed at the maximum inner diameter of the first zone of the gourd; therefore, its outer diameter is slightly smaller than the maximum inner diameter of the gourd. Existing adhesive materials such as glue can be used for fixing during installation. Installing the conductive component at the maximum inner diameter of the gourd provides better support.
[0042] The sound-conducting element can be made of bamboo tubes, but the sound is relatively soft; while coconut shells are relatively heavy and hard. When placed inside a gourd, they not only solve the problem of the soft sound produced by bamboo tubes, but also make the sound quality more mellow and melodious; therefore, coconut shells are the preferred material for making the sound-conducting element.
[0043] Place a coconut shell inside the first section of the gourd. The outer diameter of the coconut shell is slightly smaller than the inner diameter of the largest part of the first section. Before installation, cut the coconut shell to the appropriate size according to the specifications of the gourd, make a conduction hole on the coconut shell, and then insert the coconut shell from the open end so that it is stuck inside the gourd in the first section.
[0044] If there is only one conductive hole, its radius is about 2.5cm; if there are multiple conductive holes, the radius of each conductive hole is equal and can be less than or equal to 2.5cm.
[0045] Example 3
[0046] like Figures 1-2 As shown, the distance between the center of the skin 14 and the center of the sound hole 12 is 13-20cm.
[0047] like Figures 1-2 As shown, the distance between the center of the skin 14 and the center of the sound hole 12 is 14-18cm.
[0048] like Figure 5 As shown, there are several sound holes 12; each sound hole 12 is arranged at intervals around the outer periphery of the gourd 1 in the second zone 16.
[0049] like Figure 5 As shown, the center point of each tone hole 12 is located on the same vertical section of the second zone 16.
[0050] like Figure 5 As shown, there are 4 tone holes 12, which are arranged in pairs; the lines connecting the centers of the two pairs of tone holes 12 are perpendicular to each other.
[0051] Starting from the second section, after comparing various opening positions of the sound holes, it was found that when the sound holes are opened in alignment, the gourd can have a better penetration effect.
[0052] As a musical instrument, in addition to the technical features described above, the Hulu Hu also includes existing components such as tuning pegs, strings, bridges, and bows to achieve its normal function. The installation, connection, and use of these components are all existing technologies and are not the innovations of this application, so they will not be elaborated upon again.
[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel gourd-shaped erhu, using a gourd (1) as a resonator, on which a neck (11) and sound holes (12) are respectively provided; characterized in that, The bottom of the gourd (1) is cut open to form an open mouth (13); The opening (13) is sealed by the harp skin (14); The gourd (1) is equipped with an arc-shaped conductive element (2); The conductive element (2) has a conductive hole (21); The sound hole (12) is spaced apart from the conductive element (2).
2. The novel gourd-shaped gourd according to claim 1, characterized in that, The gourd (1) is divided into two areas: the larger end is the first area (15), and the smaller end is the second area (16). The side of the conductive element (2) is in contact with the inner wall of the first area (15); The sound hole (12) is located on the second zone (16).
3. A novel gourd-shaped gourd according to claim 2, characterized in that, The conductive hole (21) has N holes, where N≥1; When N=1, the conductive hole (21) is located on the horizontal centerline of the conductive element (2); When N>1, there are 0 or 1 of the conductive holes (21) located on the horizontal center line of the conductive member (2), and the remaining conductive holes (21) can be distributed at intervals around the horizontal center line of the conductive member (2).
4. A novel gourd-shaped herb according to claim 3, characterized in that, The conductive element (2) is made of coconut shell; The coconut shell has a hemispherical structure, and its outer diameter is slightly smaller than the maximum inner diameter of the first region (15).
5. A novel gourd-shaped herb according to claim 4, characterized in that, The distance between the center of the skin (14) and the center of the sound hole (12) is 13-20cm.
6. A novel gourd-shaped herb according to claim 5, characterized in that, The distance between the skin (14) and the center of the sound hole (12) is 14-18cm.
7. A novel gourd-shaped gourd according to claim 6, characterized in that, The sound hole (12) is provided with a plurality of holes; Each of the sound holes (12) is arranged at intervals around the outer periphery of the gourd (1) in the second region (16).
8. A novel gourd-shaped herb according to claim 7, characterized in that, The center point of each of the sound holes (12) is located on the same vertical cross section of the second region (16).
9. A novel gourd-shaped herb according to claim 8, characterized in that, The sound hole (12) has 4 holes, which are arranged in pairs; The lines connecting the centers of the two sets of sound holes (12) are perpendicular to each other.
10. A novel gourd-shaped gourd according to any one of claims 1-9, characterized in that, The gourd (1) has a moisture content of ≤12% and the outer skin has been removed; The gourd (1) has a wall thickness of 0.3-0.5cm.