Integrated partition insertion piece type reed plate chromatic harmonica

Abstract

The utility model discloses an integrated subarea insert type reed plate half-scale harmonica, which comprises a reed plate, the reed plate comprises a seat plate, an alto insert and a treble insert which are spliced into a whole, the thickness of the seat plate is 2 + / -0.02 mm, spring grooves are arranged on the seat plate in a double bass area and a bass area, windows are arranged on the seat plate in an alto area and a treble area, step slots are arranged on the peripheries of the windows, the thickness of the alto insert is 1.5 + / -0.02 mm, and the thickness of the treble insert is 1.5 + / -0.02 mm. The thickness of the slot is 1.0 + / -0.02 mm, the middle-pitch insertion sheet is provided with a middle-pitch spring groove, the thickness of the high-pitch insertion sheet is 1.0 + / -0.02 mm, the high-pitch insertion sheet is provided with a high-pitch spring groove, and the middle-pitch insertion sheet and the high-pitch insertion sheet are inserted into the slot to cover the window. According to the utility model, the reed plates are arranged in different areas, the double bass and bass are large, the middle and high pitches are clear, and the timbre of each sound area is full; and the integrated reed plate improves the volume, the loudness and the air tightness compared with a reed plate segmented fixing and multi-layer reed plate structure, and the overall tone quality of the harmonica is higher.

Description

Technical Field

[0001] This utility model relates to the field of harmonicas, and in particular to an integrated partitioned insert reed chromatic harmonica. Background Technology

[0002] A harmonica reed plate has reed grooves, on which reeds and diaphragms are placed. Blowing or drawing air from the mouthpiece causes the reeds to vibrate and produce sound. The harmonica has a rich register and a wide playing range. From left to right, the reed plate can be divided into bass, middle, and high registers. Because bass and middle registers require thicker reed plates for a robust sound, while the middle and high registers require relatively thinner reed plates for a clear tone, a uniform reed plate thickness results in an unfulfilled tone across multiple registers. A utility model patent (publication number CN219085638U) discloses a harmonica reed plate with a segmented structure, where several reed plates of different thicknesses are directly installed on the frame. Furthermore, claim 7 specifies that the sub-reed plates of different thicknesses are obtained by welding multiple layers of reed plates together. This results in poor airtightness, making installation, adjustment, and correction difficult, and compromising the harmonica's sound quality. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides an integrated partitioned insert reed chromatic harmonica.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An integrated partitioned reed chromatic harmonica includes a frame, two reeds, and two cover plates. The frame is located between the two reeds, and the two cover plates are located above and below the two reeds respectively. The cover plates, reeds, and frame are locked together at both ends. Each reed includes a base plate and a mid-range reed and a treble reed as a whole. The base plate is 2±0.02mm thick. Reed grooves are opened on the base plate in the bass and low-range sections, and windows are opened on the base plate in the mid-range and treble sections. Stepped slots are opened around the windows. The mid-range reed is 1.5±0.02mm thick with a mid-range reed groove on it, and the treble reed is 1.0±0.02mm thick with a treble reed groove on it. The mid-range and treble reeds are inserted into the slots and cover the windows.

[0006] A further improvement is that the slots are located around the window on the inner surface of the base plate near the rack, and the midrange and treble ferrules are flush with the inner surface of the base plate on the side near the rack.

[0007] A further improvement is that the slot does not include the left side of the window near the bass zone.

[0008] A further improvement is to drill threaded holes in the slots and around the midrange and tweeter inserts, and screw screws into these threaded holes to fix the midrange and tweeter inserts to the base plate.

[0009] A further improvement is that the base plate, midrange insert, and tweeter insert are processed by secondary precision stamping using a cold stamping die.

[0010] A further improvement is to make the harmonica a 14-hole straight-line type, with two sets of bass reed grooves and four sets of bass reed grooves on the base, four sets of mid-range reed grooves on the mid-range insert, and four sets of treble reed grooves on the treble insert.

[0011] This utility model also provides an integrated partitioned insert-type reed plate, the reed plate including a base plate and midrange inserts and tweeter inserts. The base plate is 2±0.02mm thick. Reed grooves are opened on the base plate of the bass and low-frequency zones, and windows are opened on the base plate of the midrange and high-frequency zones. Stepped slots are opened around the windows. The midrange insert is 1.5±0.02mm thick and has a midrange reed groove on it. The tweeter insert is 1.0±0.02mm thick and has a tweeter reed groove on it. The midrange insert and tweeter insert are inserted into the slots to cover the windows. Beneficial effects

[0012] This utility model harmonica features bass and midrange reed grooves directly cut into a base plate approximately 2.0mm thick, resulting in a robust sound. The midrange reed grooves are located on a midrange insert approximately 1.5mm thick, while the treble reed grooves are located on a treble insert approximately 1.0mm thick. This zoned design ensures a powerful bass, clear mid and treble, and a full tone in each register. Furthermore, the mid and treble registers are integrated into the base plate, which is then fixed to the frame. This design improves volume, loudness, and airtightness compared to segmented reed plate structures or multi-layered reed plate structures, resulting in a higher overall sound quality for the harmonica. Attached Figure Description

[0013] Figure 1 This is an exploded view of the inner surface structure of the upper spring plate of this utility model;

[0014] Figure 2 This is a top view of the assembled upper spring plate of this utility model. Detailed Implementation

[0015] The integrated partitioned insert-type reed chromatic harmonica of this utility model is a 14-hole vertical chromatic harmonica, including a frame, two reeds, and two cover plates. The frame is located between the two reeds, and the two cover plates are located above and below the two reeds respectively. The cover plates, reeds, and frame are locked together at both ends, forming a single unit. Figure 1As shown, the reed plate includes a base plate 1 and a mid-range insert 2 and a high-range insert 3 assembled as a whole. The base plate 1 is 2±0.02mm thick. Two sets of bass reed grooves 10 and four sets of low-range reed grooves are opened on the base plate 1 in the bass and low-range areas. Windows 11 are opened on the base plate 1 in the mid-range and high-range areas. Stepped slots 12 are opened around the inner surface of the base plate 1 near the frame of the window 11. The slots 12 do not include the left side of the window near the low-range area. The mid-range insert 2 is 1.5±0.02mm thick and has four sets of mid-range reed grooves 10. The high-range insert 3 is 1.0±0.02mm thick and has four sets of high-range reed grooves 10. The mid-range insert and the high-range insert are inserted into the slots 12 and cover the window 11.

[0016] The depth of the slot in the midrange section is the same as the thickness of the midrange insert, and the depth of the slot in the treble section is the same as the thickness of the treble insert. After assembly, the midrange insert and treble insert on the side near the rack are flush with the inner surface of the base plate.

[0017] Drill threaded holes 13 around slot 12 and the midrange insert 2 and tweeter insert 3. Screws are tightened into these threaded holes to secure the midrange insert 2 and tweeter insert 3 to the base plate 1. The assembled upper spring plate is as follows: Figure 2 As shown.

[0018] The seat plate, midrange insert 2, and tweeter insert 3 are processed by secondary precision stamping using a cold stamping die.

[0019] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An integrated partitioned plug springboard semitone harmonica, comprising a grid, two springboards and two cover plates, the grid is arranged between the two springboards, and the two cover plates are respectively arranged on the upper and lower surfaces of the two springboards, the two end locking cover plates, springboards and the grid are integrated, characterized in that: The spring plate comprises a seat plate (1) and a middle tone piece (2) and a high tone piece (3) which are integrated, the seat plate (1) is 2±0.02mm thick, spring grooves (10) are formed on the seat plate (1) in the bass region and the low tone region, windows (11) are formed on the seat plate (1) in the middle tone region and the high tone region, stepped insertion grooves (12) are formed around the windows (11), the middle tone piece (2) is 1.5±0.02mm thick, and middle tone spring grooves (10) are formed on the middle tone piece (2), the high tone piece (3) is 1.0±0.02mm thick, and high tone spring grooves (10) are formed on the high tone piece (3), and the middle tone piece and the high tone piece are inserted into the insertion grooves (12) to cover the windows (11).

2. The integrated partitioned tabular spring plate diatonic harmonica of claim 1, wherein: The insertion grooves (12) are formed on the inner surface of the seat plate (1) near the window periphery of the piano grid, and the middle tone piece (2) and the high tone piece (3) are flush with the inner surface of the seat plate (1) near the piano grid.

3. The integrated partitioned tabular spring plate diatonic harmonica of claim 1, wherein: The insertion grooves (12) do not include the left part of the window near the low tone region.

4. The integrated partitioned tabular spring plate diatonic harmonica of claim 1, wherein: Threaded holes (13) are formed on the insertion grooves (12) and around the middle tone piece (2) and the high tone piece (3), and screws are screwed into the threaded holes to fix the middle tone piece (2) and the high tone piece (3) on the seat plate (1).

5. The integrated partitioned tabular spring plate diatonic harmonica of claim 1, wherein: The seat plate, the middle tone piece (2) and the high tone piece (3) are processed by cold punching and secondary fine punching.

6. The integrated partitioned tabular spring plate diatonic harmonica of claim 1, wherein: The harmonica is a fourteen-hole straight-line type, two groups of bass spring grooves and four groups of low tone spring grooves are formed on the seat plate (1), four groups of middle tone spring grooves are formed on the middle tone piece (2), and four groups of high tone spring grooves are formed on the high tone piece (3).

7. An integral zoned insert leaf spring characterized by: The spring plate comprises a seat plate (1) and a middle tone piece (2) and a high tone piece (3), the seat plate (1) is 2±0.02mm thick, spring grooves (10) are formed on the seat plate (1) in the bass region and the low tone region, windows (11) are formed on the seat plate (1) in the middle tone region and the high tone region, stepped insertion grooves (12) are formed around the windows (11), the middle tone piece (2) is 1.5±0.02mm thick, and middle tone spring grooves (10) are formed on the middle tone piece (2), the high tone piece (3) is 1.0±0.02mm thick, and high tone spring grooves (10) are formed on the high tone piece (3), and the middle tone piece and the high tone piece are inserted into the insertion grooves (12) to cover the windows (11).

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