A keyed bass flute

Abstract

This utility model discloses a keyed bass flute, comprising a flute tube with an inner diameter of 20 mm, a blowhole section and a sound-producing section, the sound-producing section being 605 mm long. The blowhole section has a blowhole and a membrane hole. The sound-producing section, along its length, has twelve finger holes, a fundamental tone hole, and a rear sound hole. The twelve finger holes, from the fundamental tone hole to the membrane hole, are arranged in the following order: first little finger finger hole, first ring finger finger hole, first middle finger finger hole, first index finger finger hole, first interlocking key finger hole, second little finger finger hole, second ring finger finger hole, second middle finger hole, second interlocking key finger hole, second thumb finger hole, second index finger hole, and thumb single-key finger hole. This keyed bass flute, through simple keying and adjustment of the ratio of inner diameter to tube length, achieves the requirements of twelve-tone equal temperament, making modulation convenient. Each semitone has a finger hole, ensuring accurate modulation.

Description

Technical Field

[0001] This utility model relates to the field of musical instrument technology, specifically to a bass flute with added keys. Background Technology

[0002] The Chinese bamboo flute is one of the oldest traditional wind instruments in my country, with a history spanning thousands of years. In Chinese folk orchestras, the bamboo flute is a primary instrument, divided into the bangdi, qudi, and bass flute. The bangdi and qudi can be used to change keys when needed. However, the bass flute only has one key, and changing keys requires using half-hole correction or breath control, which presents difficulties in controlling pitch accuracy and limits the creative possibilities for composers. Utility Model Content

[0003] The purpose of this utility model is to provide a keyed bass flute with a simple and reasonable design that retains the playing style of the traditional bass flute. By simply adding keys and adjusting the ratio of the inner diameter to the tube length, it meets the requirements of the twelve-tone equal temperament, making it easy to change keys. Each semitone has a hole to press, ensuring accurate pitch during key changes.

[0004] To achieve the above objectives, the solution of this utility model is:

[0005] A keyed bass flute includes a flute tube with an inner diameter of 20 mm, the flute tube comprising a blowhole section and a sound-producing section, the sound-producing section being 605 mm in length. mm, the blowhole section is provided with a blowhole and a membrane hole, the sound-producing section is provided with twelve finger holes, a fundamental tone hole and a rear sound hole along its length, the twelve finger holes from the fundamental tone hole to the membrane hole are arranged in the following order: first little finger finger hole, first ring finger finger hole, first middle finger finger hole, first index finger finger hole, first linkage key hole, second little finger finger hole, second ring finger finger hole, second middle finger finger hole, second linkage key hole, second thumb finger hole, second index finger finger hole and thumb single key hole, the first middle finger finger hole is fitted with a first middle finger key ring, the first index finger finger hole is fitted with a first index finger key ring, the first linkage key hole is covered with a first linkage key cover, the second little finger finger hole is covered with a second little finger key cover, the second middle finger finger hole is fitted with a second middle finger key ring, the second linkage key hole is covered with a second linkage key cover, and so on. The thumb key hole is covered with a thumb key cover. A first transmission rod, a second transmission rod, and a third transmission rod are sequentially arranged along the length of one side of the sound output segment. A linkage rod connects the first transmission rod and the second transmission rod. The first middle finger key ring, the first index finger key ring, the first linkage key cover, and the second little finger key cover are welded to the first transmission rod. A second little finger pressing handle is also provided on the first transmission rod, located between the first linkage key hole and the second ring finger key hole. The second little finger pressing handle extends towards the second ring finger key hole. The second middle finger key ring and the second linkage key cover are welded to the second transmission rod. The thumb key cover is welded to the third transmission rod. A second thumb pressing handle is also provided on the third transmission rod, adjacent to the second thumb key hole.

[0006] There are two pitch holes, which are symmetrically arranged on the side of the sound output section.

[0007] There are two rear sound holes, which are arranged along the length of the sound segment.

[0008] The blowhole section is inserted into the sound output section, and a tuning copper sleeve is fitted inside the insertion point of the blowhole section and the sound output section. A decorative collar is fitted on the outside of the tuning copper sleeve.

[0009] The blowhole section is also provided with a flute membrane located between the blowhole and the flute membrane hole. The flute membrane is covered with an arc-shaped plastic flute membrane sheet, the curvature of which matches the outer contour of the blowhole section.

[0010] With the above structure, the keyed bass flute of this invention has the following beneficial effects:

[0011] 1. Based on the traditional bass flute, two linked key holes (first and second linked key holes) and two single keys (second little finger hole and thumb single key hole) were designed, increasing the number of tone holes to 12. Among them, three traditional bass flute finger holes (first ring finger hole, second ring finger hole, and second index finger hole) were retained, allowing the player to directly play two octaves of traditional fingering without using additional keys. Since eight of the twelve tone holes are directly pressed by the fingers, techniques such as glissando and tonguing in traditional bass flute playing are preserved. The twelve-tone equal temperament is achieved through simple keying, making it easy to change keys. Each semitone has a hole to press, ensuring accurate pitch during key changes.

[0012] 2. The opening and closing of the first middle finger key ring, the first index finger key ring, and the first linkage key cover on the first transmission rod, as well as the opening and closing of the second middle finger key ring and the second linkage key cover on the second transmission rod, are realized through the linkage rod. This enables the playing of the first middle finger button hole, the first index finger button hole, the first linkage key button hole, the second middle finger button hole, and the second linkage key button hole. Three of these five buttons are open-hole keys, which retains more of the playing style characteristics of the traditional bass flute and the elasticity of the finger touch holes.

[0013] 3. By adjusting the inner diameter of the flute and the length of the sound-producing section, the ideal standing wave generated by the vibration of the air column on the flute can be found.

[0014] Furthermore, the blowhole section is also provided with a flute membrane located between the blowhole and the flute membrane hole. The flute membrane is covered with an arc-shaped plastic flute membrane sheet. When the flute membrane is needed, the plastic flute membrane sheet can be removed directly, which facilitates the change of flute tone. Attached Figure Description

[0015] Figure 1 This is a front structural diagram of a keyed bass flute according to the present invention;

[0016] Figure 2 This is a schematic diagram of the back structure of a keyed bass flute according to this utility model;

[0017] Figure 3 This is a schematic diagram of the decorative ring in this utility model.

[0018] In the picture:

[0019] 1. Flute tube; 11. Blowhole section;

[0020] Blowhole 111; Membrane hole 112;

[0021] 12-segment; 121-pitched tone hole;

[0022] Rear sound hole 122; First little finger pressing hole 123;

[0023] The first ring finger presses hole 124; the second ring finger presses hole 125;

[0024] The second thumb presses hole 126; the second index finger presses hole 127;

[0025] Tuning sleeve 13; Decorative ring 14;

[0026] First middle finger key ring 21; First index finger key ring 22;

[0027] First linkage key cover 23; Second little finger key cover 24;

[0028] Second middle finger key ring 25; Second linkage key cover 26;

[0029] Thumb key cover 27; First transmission rod 3;

[0030] Second little finger pressing handle 31; Second transmission rod 4;

[0031] Third transmission rod 5; Second thumb pressing handle 51;

[0032] 6. Linkage rod; 7. Plastic diaphragm. Detailed Implementation

[0033] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0034] A type of bass flute with added keys, such as Figures 1-2 As shown, the flute tube 1 has an inner diameter of 20 mm. The flute tube 1 includes a blowhole section 11 and a sound-producing section 12. The length of the sound-producing section 12 is 605 mm. By selecting an acoustic ratio of approximately 1:30, the ideal standing wave generated by the vibration of the air column on the flute tube can be found.

[0035] The blowhole section 11 is provided with a blowhole 111 and a membrane hole 112. The sound-producing section 12 is provided with twelve finger holes, two fundamental tone holes 121 and two rear sound holes 122 along its length. The twelve finger holes are arranged in the following order from the fundamental tone holes to the membrane holes: the first little finger finger hole 123 (corresponding to...). b (e sound), first ring finger presses hole 124 (corresponding to e sound), first middle finger presses hole (corresponding to f sound), first index finger presses hole (corresponding to...) # f sound), first linkage key hole (corresponding to G sound), second little finger hole (corresponding to # G sound), second ring finger presses hole 125 (corresponding to A sound), second middle finger presses hole (corresponding to G sound), second ring finger presses hole 125 (corresponding to A sound), second middle ... middle finger presses hole 125 (corresponding to A sound), second middle finger presses hole 125 (corresponding to A sound), second middle finger presses hole 125 (corresponding to A sound), second middle finger presses hole 12 b (b sound), second linkage key hole (corresponding to b sound), second thumb hole 126 (corresponding to c sound), second index finger hole 127 (corresponding to b sound). #The sound section 12 has a blowhole 111, a membrane hole 112, two rear sound holes 122, a first little finger button 123, a first ring finger button 124, a first middle finger button, a first index finger button, a first linkage button button, a second ring finger button 125, a second middle finger button, a second linkage button button, a second index finger button 127, and a thumb button. The sound section 12 has two rear sound holes 122 along its length. The second little finger button and the second thumb button 126 are located on the back of the sound section 12. The two fundamental tone holes 121 are symmetrically located on the sides of the sound section 12.

[0036] A first middle finger key ring 21 is fitted over the first middle finger key hole; a first index finger key ring 22 is fitted over the first index finger key hole; a first linkage key cover 23 is fitted over the first linkage key key hole; a second little finger key cover 24 is fitted over the second little finger key hole; a second middle finger key ring 25 is fitted over the second middle finger key hole; a second linkage key cover 26 is fitted over the second linkage key key hole; and a thumb key cover 27 is fitted over the thumb single key key hole.

[0037] Along its length, a first transmission rod 3, a second transmission rod 4, and a third transmission rod 5 are sequentially arranged on one side of the sound-producing section 12. A linkage rod 6 connects the first transmission rod 3 and the second transmission rod 4. A first middle finger key ring 21, a first index finger key ring 22, a first linkage key cover 23, and a second little finger key cover 24 are welded to the first transmission rod 3. A second little finger pressing handle 31 is also provided on the first transmission rod 3, located between the first linkage key hole and the second ring finger hole 125. The second little finger pressing handle 31 extends towards the second ring finger hole 125. The second little finger pressing handle 31 and the second little finger key cover 24 are located on both sides of the first transmission rod 3, so that the second little finger hole forms a single key. When the left little finger presses or releases the second little finger pressing handle 31, it can control the opening and closing of the second little finger key cover 24 to achieve a semitone change.

[0038] The second middle finger key ring 25 and the second linkage key cover 26 are welded to the second transmission rod 4. Since the first transmission rod 3 and the second transmission rod 4 are connected by the linkage rod 6, when it is necessary to change the tone, the corresponding key holes on the first transmission rod 3 and the second transmission rod 4 can be linked by pressing the first middle finger key ring 21 on the first transmission rod 3. Alternatively, one hand can be used to press the corresponding key hole on the second transmission rod 4 to achieve the linkage of only the corresponding key hole on the first transmission rod 3.

[0039] The thumb button cover 27 is welded to the third transmission rod 5. A second thumb press handle 51 is also provided on the third transmission rod 5, adjacent to the second thumb button hole 126. The second thumb press handle 51 and the thumb button cover 27 are located on opposite sides of the third transmission rod 5, forming another single button with the thumb button hole. When the left thumb presses down or releases the second thumb press handle 51, it controls the opening and closing of the thumb button cover 27.

[0040] The bonding principle of this invention is as follows:

[0041] With the left hand pressing the second ring finger button 125, the second middle finger button 126, the second thumb button 127, and the right middle finger pressing the first middle finger button 127, and simultaneously, under the action of the first transmission rod 3, the first linkage key cover 23 covers the first linkage key button 127, thus achieving... # The altered sound of f.

[0042] With the left hand pressing the second thumb button 126 and the second index finger button 127, and the right middle finger pressing the first middle finger button, simultaneously, under the linkage of the first transmission rod 3, the linkage rod 6, and the second transmission rod 4, the first linkage key cover 23 covers the first linkage key button hole, and the second linkage key cover 26 covers the second linkage key button hole, thus achieving... b The altered sound of b.

[0043] Furthermore, such as Figure 3 As shown, the blowhole section 11 is inserted into the sound outlet section 12, and a tuning brass sleeve 13 is fitted inside the insertion point of the blowhole section 11 and the sound outlet section 12. A decorative collar 14 is fitted onto the outside of the tuning brass sleeve 13. When the tuning brass sleeve 13 is pulled outward, the decorative collar 14 can be fitted onto the outside of the tuning brass sleeve 13 for an aesthetic effect. Multiple decorative collars 14 can be fitted onto the outside of the tuning brass sleeve 13 depending on the length of the tuning brass sleeve 13 that has been pulled out.

[0044] Furthermore, the blowhole section 11 is also equipped with a flute membrane located between the blowhole 111 and the membrane hole 112. The flute membrane is covered with an arc-shaped plastic membrane sheet 7, the curvature of which matches the outer contour of the blowhole section 11. When the flute membrane is needed, the plastic membrane sheet 7 can be removed directly, facilitating the change of flute tone.

[0045] This utility model discloses a simple and reasonable design for a bass flute with added keys. It retains the playing style of the traditional bass flute and achieves the twelve-tone equal temperament by simply adding keys, thus expanding the flute's range.

[0046] In this utility model, the connection structure between the first transmission rod 3, the second transmission rod 4, and the third transmission rod 5 and the flute tube 1 is a known keyed structure in the art, such as the keyed structure disclosed in the invention patent application CN1096606A for a keyed equal temperament bamboo flute, and the keyed structure disclosed in the utility model patent CN209343760U for a bass curved tube keyed southern xiao.

[0047] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A keyed bass flute, comprising a flute tube, characterized in that: The flute tube has an inner diameter of 20 mm and includes a blowhole section and a sound-producing section. The sound-producing section is 605 mm long. The blowhole section has a blowhole and a membrane hole. The sound-producing section has twelve finger holes, a fundamental tone hole, and a rear sound hole arranged sequentially along its length. The twelve finger holes, from the fundamental tone hole to the membrane hole, are arranged in the following order: first little finger finger hole, first ring finger finger hole, first middle finger finger hole, first index finger finger hole, first interlocking key hole, second little finger finger hole, second ring finger finger hole, second middle finger finger hole, second interlocking key hole, second thumb finger hole, second index finger finger hole, and thumb single key hole. A first middle finger key ring is fitted on the first middle finger finger hole, a first index finger key ring is fitted on the first index finger finger hole, a first interlocking key cover is fitted on the first interlocking key hole, a second little finger key cover is fitted on the second little finger finger hole, a second middle finger key ring is fitted on the second middle finger finger hole, and a second interlocking key cover is fitted on the second interlocking key hole. The thumb key hole is covered with a thumb key cover. A first transmission rod, a second transmission rod, and a third transmission rod are sequentially arranged along the length of one side of the sound output segment. A linkage rod connects the first transmission rod and the second transmission rod. The first middle finger key ring, the first index finger key ring, the first linkage key cover, and the second little finger key cover are welded to the first transmission rod. A second little finger pressing handle is also provided on the first transmission rod, located between the first linkage key hole and the second ring finger key hole. The second little finger pressing handle extends towards the second ring finger key hole. The second middle finger key ring and the second linkage key cover are welded to the second transmission rod. The thumb key cover is welded to the third transmission rod. A second thumb pressing handle is also provided on the third transmission rod, adjacent to the second thumb key hole.

2. A keyed bass flute according to claim 1, characterized in that: There are two pitch holes, which are symmetrically arranged on the side of the sound output section.

3. A keyed bass flute according to claim 1, characterized in that: There are two rear sound holes, which are arranged along the length of the sound segment.

4. A keyed bass flute according to claim 1, characterized in that: The blowhole section is inserted into the sound output section, and a tuning copper sleeve is fitted inside the insertion point of the blowhole section and the sound output section. A decorative collar is fitted on the outside of the tuning copper sleeve.

5. A keyed bass flute according to claim 1, characterized in that: The blowhole section is also provided with a flute membrane located between the blowhole and the flute membrane hole. The flute membrane is covered with an arc-shaped plastic flute membrane sheet, the curvature of which matches the outer contour of the blowhole section.

Images