In-line type half-scale mouthpiece plate

Abstract

The invention discloses an in-line type half-scale mouthpiece plate, a plurality of sound blowing holes are formed in a strip-shaped mouthpiece plate at intervals, and a groove is formed between every two sound blowing holes in the inner surface of the mouthpiece plate. The groove is formed in the inner side face of the mouthpiece plate, lubricating oil can be added and stored in the groove, the service life of the lubricating oil is prolonged, the lubricating oil can be evenly and repeatedly used on the inflexion plate in the key pushing process every time, and smoothness is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of musical instruments harmonica, in particular to an in-line chromatic scale mouthpiece. Background Art

[0002] The chromatic harmonica is an improvement of the traditional harmonica. With a clever key, you can play semitones on a harmonica. Because of its wide range, delicate timbre and various variations, it has been rapidly promoted in recent years and is often used in harmonica ensembles and polyphony. When the change key is pushed during the performance, the change plate moves against the inside of the mouthpiece. There is a certain friction between the two, which produces resistance to change, and the smoothness is hindered. In order to improve the smoothness, lubricating oil is added between the change plate and the inside of the mouthpiece. Since the two are flat, if the amount of lubricating oil is not appropriate, it will leak into the inside of the harmonica. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides an in-line chromatic scale mouthpiece, the inner side of which is provided with a groove, and lubricating oil is stored in the groove to reduce the resistance to tone change during performance and increase smoothness and fluency.

[0004] To achieve the above object, the present invention provides the following technical solutions: A straight-line chromatic scale mouthpiece is provided, wherein a plurality of blowing holes are arranged at intervals on a long strip-shaped mouthpiece, and a groove is provided between two blowing holes on the inner surface of the mouthpiece.

[0005] A further improvement is that the groove is shaped as a vertical groove with semicircular ends at the middle rectangle, and the long side of the rectangle is equal to the height of the blowing hole. Under the condition of ensuring the strength of the mouthpiece, the groove area becomes larger, and the contact surface with the sound changing plate becomes smaller.

[0006] A further improvement is that the groove is 0.05-0.1 mm deep.

[0007] A further improvement is that the sound hole is a vertical hole with a rectangular middle and semicircular ends on the inner surface of the mouthpiece plate, and is a round hole, a square hole, or a square hole with arcs at four corners on the outer surface of the mouthpiece plate.

[0008] A further improvement is that the hole width of the outer surface of the blowing hole is greater than the hole width of the inner surface; the hole height of the outer surface of the blowing hole is less than the hole height of the inner surface, forming a trumpet shape, so as to achieve the effect of collecting and amplifying sound. Beneficial Effects

[0009] If lubricating oil is added between the two planes on the inner side of the tone change plate and the mouthpiece, it will dry easily if too little is added, but it will leak into the inside of the harmonica if too much is added. The mouthpiece of the present application is designed with a groove structure between the two sound holes on the inner surface. The groove structure prevents the lubricating oil from being completely between the two planes, so that the lubricating oil is stored in the groove, increasing the use time of the lubricating oil, and is evenly and repeatedly used on the tone change plate during each key pushing process, ensuring smoothness and fluentness. At the same time, there is no need to accurately control the amount of lubricating oil added, reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the inner surface structure of the mouthpiece plate; Figure 2 It is a schematic diagram of the outer surface structure of the blowhole plate; Figure 3 It is a schematic diagram of the cross section of the mouthpiece plate; Figure 4 A three-dimensional image of a harmonica with the mouthpiece installed. DETAILED DESCRIPTION

[0011] like Figures 1 to 3 As shown, the strip-shaped mouthpiece 1 of the present invention is provided with a plurality of blowing holes 11 at intervals, and a groove 12 is provided between two blowing holes 11 on the inner surface of the mouthpiece 1. The shape of the groove 12 is a vertical groove with semicircular ends of a middle rectangle, and the long side of the rectangle is equal to the height of the blowing hole. The depth of the groove 12 is 0.05-0.1 mm.

[0012] The blowing hole 11 is a vertical hole with a rectangular middle and semicircular ends on the inner surface of the mouthpiece, and a round hole, a square hole, or a square hole with arcs at four corners on the outer surface of the mouthpiece. The hole width of the outer surface of the blowing hole 11 is greater than the hole width of the inner surface; the hole height of the outer surface of the blowing hole is less than the hole height of the inner surface, and is in a bell-shaped shape.

[0013] Figure 4 The harmonica of the mouthpiece is installed, wherein the inner side of the mouthpiece 1 is in close contact with the tone changing plate 2.

[0014] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An in-line chromatic mouthpiece, wherein a plurality of blowing holes (11) are provided at intervals on a strip-shaped mouthpiece (1), characterized in that: A groove (12) is provided between the two blowing holes (11) on the inner surface of the mouthpiece plate (1).

2. The in-line chromatic mouthpiece according to claim 1, characterized in that: The groove (12) is in the shape of a vertical groove with a rectangular middle and semicircular ends, and the long side of the rectangle is at the same height as the blowing hole.

3. The in-line chromatic mouthpiece according to claim 1, characterized in that: The groove (12) has a depth of 0.05-0.1 mm.

4. The in-line chromatic mouthpiece according to claim 1, characterized in that: The blowing hole (11) is a vertical hole with a rectangular middle and semicircular ends on the inner surface of the mouthpiece plate, and is a round hole, a square hole, or a square hole with rounded corners on the outer surface of the mouthpiece plate.

5. The in-line chromatic mouthpiece according to claim 1, characterized in that: The hole width of the outer surface of the blowing hole (11) is greater than the hole width of the inner surface; the hole height of the outer surface of the blowing hole is less than the hole height of the inner surface, and is in a bell-shaped shape.

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