A 24-hole 48-note low-range diatonic harmonica

Abstract

The invention discloses a 24-hole 48-note low-range full-scale harmonica, comprising a fret, a seat plate covering both sides of the fret and a cover plate covering the seat plate, wherein a sound reed is installed on the seat plate, an upper sound reed group is installed corresponding to the upper seat plate, and a lower sound reed group is installed corresponding to the lower seat plate, and the sound reed is installed on both sides of the seat plate according to the difference between blowing sound and sound absorption, the blowing sound is installed on the inner side of the seat plate, and the sound absorption is installed on the outer side of the seat plate, and the blowing sound and the sound absorption are arranged alternately, a hollow structure is arranged in the bass area of ​​the fret to prevent the sound reed from vibrating with a large amplitude and colliding with the fret holes and failing to make a sound normally, and to facilitate the passage of breath, a groove is arranged in the lower part of the treble area of ​​the fret, which, on the one hand, saves more effort in blowing, and on the other hand, can reduce the time of breath transmission, and make the sound faster, and the blowing taste is more delicate, smooth and fluent, and the air tightness is moderate, the volume is large, the pronunciation response is sensitive, and the control is stable and easy during blowing.

Description

Technical Field

[0001] The invention relates to the technical field of harmonicas, in particular to a 24-hole 48-note low-range diatonic harmonica. Background Art

[0002] The harmonica is a multi-reed instrument that produces sound by blowing or inhaling air into the mouth to make the metal reeds vibrate. It is classified as a free-reed wind instrument. Since the sound source is a reed with a length between 1.5 and 3.5 cm rather than an air column, it is mainly divided into solo harmonica and ensemble harmonica, each of which has different types. Their range varies slightly depending on the type and tonality. As a melodic instrument, the harmonica can play at least two chords. High-level musicians can play two relatively independent parts at the same time on the harmonica while following the harmonica structure.

[0003] However, the traditional low-range harmonica has problems with the length and thickness of the reed, which causes breath blockage, affects the pronunciation, makes playing difficult, and the tone effect is not ideal. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above prior art and provide a 24-hole 48-note harmonica with smooth breath passage, labor-saving playing and sensitive pronunciation response.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a 24-hole 48-note low-range full-scale harmonica, comprising a fret, a seat plate covering both sides of the fret and a cover plate covering the seat plate, a sound reed piece is installed on the seat plate, an upper piece seat plate corresponds to an upper piece sound reed group, and a lower piece seat plate corresponds to a lower piece sound reed group, the sound reed pieces are installed on both sides of the seat plate according to the difference between blowing sound and sound absorption, the blowing sound is installed on the inner side of the seat plate, and the sound absorption is installed on the outer side of the seat plate, the blowing sound and the sound absorption are arranged at intervals, the bass area of ​​the fret is provided with a hollow structure, and the lower part of the treble area of ​​the fret is provided with a groove.

[0006] Furthermore, the reed piece includes a reed rake, a head, a root and a reed cap, wherein the total length of the reed piece is the reed length a, the length of the reed rake is the rake length b, and the size relationship between the reed length and the rake length satisfies b<1 / 2a.

[0007] Furthermore, the thickness of the spring rake is between 30 and 50 micrometers, and gradually decreases from the bass area to the treble area.

[0008] Furthermore, the thickness of the head is between 5 and 18 microns, and the thickness of the root is between 10 and 17 microns.

[0009] Furthermore, an arc structure extending along the breath direction is arranged below the fret holes corresponding to the high pitch area.

[0010] Furthermore, the length c of the arc structure is less than 1 / 2 of the length of the corresponding fret hole.

[0011] The invention discloses a 24-hole 48-note bass range full-scale harmonica, which has the following beneficial effects: since the thickness of the bass reed is thicker than that of the treble, a hollow structure is arranged in the bass area of ​​the fret to prevent the reed from vibrating with a large amplitude and colliding with the fret hole and failing to produce sound normally, so as to facilitate the passage of breath; since the treble reed is short and the breath used is relatively large, a groove is arranged at the lower part of the treble area of ​​the fret, and a circular arc extending along the breath direction is arranged below the fret hole corresponding to the treble area, which saves effort in playing on the one hand, and reduces the time of breath transmission on the other hand, so as to produce sound faster; after repeated modulation for many times, the length and thickness of the reed are designed more reasonably, the playing mouthfeel is more delicate, smooth and fluent, the air tightness is moderate, the volume is large, the pronunciation response is sensitive, the control is stable and easy, the playing tone is magnetic and mellow in the bass area, the tone is warm and soft in the middle area, and the tone is clear, solid and penetrating in the treble area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the piano frame of the present invention;

[0014] Figure 2 yes Figure 1 AA section view in the figure;

[0015] Figure 3 It is a schematic diagram of the structure of the reed;

[0016] Figure 4 This is a schematic diagram of the arrangement structure of the upper gong group;

[0017] Figure 5 This is a schematic diagram of the arrangement structure of the lower reed group;

[0018] Figure 6 This is a schematic diagram of the arrangement of the gong group;

[0019] Figure 7 It is the length and thickness design parameters of the reed;

[0020] In the figure: 1. fret, 2. groove, 3. arc structure, 4. hollow structure, 5. reed cap, 6. root, 7. head, 8. reed rake, 9. reed piece. DETAILED DESCRIPTION

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] The invention discloses a 24-hole 48-note low-range full-scale harmonica, comprising a fret 1, a seat plate covering both sides of the fret 1 and a cover plate covering the seat plate, wherein a sound reed piece 9 is installed on the seat plate, an upper sound reed group is installed corresponding to the upper seat plate, and a lower sound reed group is installed corresponding to the lower seat plate, wherein the sound reed piece 9 is installed on both sides of the seat plate according to the difference between blowing sound and sound absorption, the blowing sound is installed on the inner side of the seat plate, and the sound absorption is installed on the outer side of the seat plate, the blowing sound and the sound absorption are arranged at intervals, a hollow structure 4 is arranged in the bass area of ​​the fret 1, and a groove 2 is arranged in the lower part of the treble area of ​​the fret 1, such as Figure 1 , Figure 2 shown.

[0023] The upper gong group and the lower gong group are pressed from left to right. Figure 6 Arranged in the order shown.

[0024] like Figure 3 As shown, the reed piece 9 includes a reed rake 8, a head 7, a root 6 and a reed cap 5, wherein the total length of the reed piece 9 is the reed length a, the length of the reed rake 8 is the rake length b, and the size relationship between the reed length and the rake length satisfies b<1 / 2a.

[0025] The thickness of the reed rake 8 is between 30 and 50 microns, and gradually decreases from the bass area to the treble area. The thickness of the head 7 is between 5 and 18 microns, and the thickness of the root 6 is between 10 and 17 microns. When implemented, the length and thickness of the reed piece are designed as follows: Figure 7 shown.

[0026] An arc structure 3 extending along the breath direction is arranged below the fret holes corresponding to the high pitch area.

[0027] The length c of the arc structure 3 is less than 1 / 2 of the length of the corresponding fret hole.

[0028] The invention discloses a 24-hole 48-note bass range full-scale harmonica, which has the following beneficial effects: since the thickness of the bass reed is thicker than that of the treble, a hollow structure is arranged in the bass area of ​​the fret to prevent the reed from blocking the fret hole and facilitate the passage of breath; since the treble reed is short and the breath used is relatively large, a groove is arranged in the lower part of the treble area of ​​the fret, and a circular arc extending along the breath direction is arranged below the fret hole corresponding to the treble area, which saves effort in playing on the one hand and reduces the time of breath transmission on the other hand, and makes the pronunciation faster; after repeated modulation for many times, the length and thickness of the reed are designed more reasonably, the playing mouthfeel is more delicate, smooth and fluent, the air tightness is moderate, the volume is large, the pronunciation response is sensitive, the control is stable and easy, the playing tone is magnetic and mellow in the bass area, the tone is warm and soft in the middle area, and the tone is clear, solid and penetrating in the treble area.

[0029] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A 24-hole 48-note bass range diatonic harmonica, comprising a fret (1), a seat plate covering both sides of the fret (1), and a cover plate covering the seat plate, a reed sheet (9) being mounted on the seat plate, an upper reed group being mounted on the upper seat plate, and a lower reed group being mounted on the lower seat plate, wherein: The reed piece (9) is installed on both sides of the seat plate according to the difference between blowing sound and sound absorption. The blowing sound is installed on the inner side of the seat plate, and the sound absorption is installed on the outer side of the seat plate. The blowing sound and the sound absorption are arranged at intervals. The bass area of ​​the fret (1) is provided with a hollow structure (4), and the lower part of the treble area of ​​the fret (1) is provided with a groove (2).

2. A 24-hole 48-note low-range diatonic harmonica according to claim 1, characterized in that: The reed piece (9) comprises a spring rake (8), a head (7), a root (6) and a reed cap (5), wherein the total length of the reed piece (9) is a spring length a, the length of the reed rake (8) is a rake length b, and the relationship between the spring length and the rake length satisfies b<1 / 2a.

3. A 24-hole 48-note low-range diatonic harmonica according to claim 2, characterized in that: The thickness of the spring rake (8) is between 30 and 50 micrometers, and gradually decreases from the bass area to the treble area.

4. A 24-hole 48-note low-range diatonic harmonica according to claim 2, characterized in that: The thickness of the head (7) is between 5 and 18 microns, and the thickness of the root (6) is between 10 and 17 microns.

5. A 24-hole 48-note low-range diatonic harmonica according to claim 1, characterized in that: An arc structure (3) extending along the breath direction is arranged below the fret holes corresponding to the high pitch area.

6. A 24-hole 48-note low-range diatonic harmonica according to claim 5, characterized in that: The length c of the arc structure (3) is less than 1 / 2 of the length of the corresponding fret hole.

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