Harmonica

Abstract

The invention relates to a harmonica, which comprises an upper-layer breathing body and a lower-layer breathing body. The harmonica is characterized by further comprising a frame seat with a groove-shaped accommodation part, wherein the upper-layer and lower-layer breathing bodies are superposed with each other to be placed in the groove-shaped accommodation part; the groove-shaped accommodation part comprises a front groove wall, a rear groove wall and a bottom groove wall; and the front groove wall is provided with openings corresponding to fret openings of the breathing bodies. Due to the transition or process advantages of the front groove wall, lips are difficult to injure in playing on a playing surface; due to the shape of the frame seat, the harmonica is difficult to injure an oral cavity or hands and has attractive appearance; due to the structure of the groove-shaped accommodation part, the two breathing bodies can be fast connected; when an inflexion sliding part is arranged, a part between the inflexion sliding part and the breathing body is difficult to leak air due to the process advantages of the front groove wall, and the integration and simplification functions of the frame seat remarkably reduce the number of positioning holes of the inflexion sliding part; and when a breathing opening strip is arranged, a reliable, fast and indirect clamping mechanism can be arranged between the breathing body and the breathing opening strip due to the transition and the integration function of the frame seat.

Description

technical field [0001] The invention relates to a musical instrument, in particular to a harmonica. Background technique [0002] Chinese patent has disclosed several kinds of harmonicas that have two blowing and sucking bodies up and down, and can be superimposedly arranged. This harmonica can have no changing slide piece, no mouthpiece, and can also add a changing slide piece and a mouthpiece on the structure of no changing slide piece without a mouthpiece. [0003] Before analyzing the shortcomings of the known technology, first introduce the basic situation of this kind of harmonica that is superimposed by the upper and lower blowing and sucking bodies, so as to clarify the scope of some concepts: [0004] 1. For example, the structure of the harmonica of the patent No. 200710068257.0 is as follows: Figure 13 As shown, the harmonica is formed by superimposing two blowing and sucking bodies 1. Its blowing and sucking body 1 is provided with at least two blowing and suck...

AI Technical Summary

Problems solved by technology

[0012] Reason (3) In the blowing and sucking body 1a with "T" shaped pins, it is necessary to ensure the position accuracy of the "T" shaped pins 84 of metal materials assembled on the sound board 14, and to ensure the sound grille 13 of the same layer of plastic materials The position accuracy of the assembly on the sound board 14, so the assembly is time-consuming, otherwise there will be steps between the upper and lower blowing and suction surfaces 16a, 16b after the normal assembly is completed, and the defective rate is high.

[0013] Reason (4) especially if Figure 13 The harmonica with blowing and sucking surfaces on the front and rear sides of the harmonica, because the "T" shaped pin 84 and "T" shaped groove 85 are intersected, and the phenomenon of the front and rear changes of the reference is increased, so the upper and lower blowing and sucking surfaces of the same orientation 16a, 16b are more likely to have steps

Therefore, when playing and moving the lips, it is easy to hurt the mouth, and there is air leakage between the two blowing and suction surfaces

[0014] Shortcoming two: with existing two blow-suction body connecting structures, without the sound change slide piece, the class harmonica of no mouthpiece strip, because when " T " font pin 84 and " T " font groove 85 are plugged in, need to allow two After the blowing body is parallel, it can be aligned and inserted

However, if the horizontal length of the piano body is relatively long, the force needs to be uniform, otherwise the force will not be uniform and it will not be easy to achieve parallelism, so the whole insertion process will take time, which will affect the player's need to change the key.

[0015] Shortcoming three: use the existing two blow-suction bodies to connect the structure, do not have the one class harmonica of sound changing slide piece, do not have mouthpiece strip, the appearance of the harmonica of " T " font pin 84 and " T " font slot 85 that are plugged in is rather strange, lack of general aesthetic

[0016] Disadvantage 4: With the existing two-blowing-suction body connection structure, no phonation slider, and a class of harmonica without mouthpieces, the "T"-shaped pin 84 is also easy for the player to accidentally touch the mouth or hands when playing. The possibility of injury to the "T" pin

Disadvantage 4. Children's products are even more important to ignore

[0017] Disadvantage five: if Figure 33 As shown, a class of harmonica with two existing blow-suction body connection structures and a sound-changing slide, that is, a harmonica structure without a sound-changing slide and no mouthpiece is further added with a sound-changing slide 3 and a mouthpiece For a harmonica with a strip (not shown), the two blowing and sucking bodies are inserted through the T-shaped pin 84 and the corresponding "T"-shaped groove 85, and then pass through the rubber band at the mouthpiece (not shown, refer to patent 200710068257.0), so that The two blow-suction bodies are bound together. When the harmonica is played, the vertical airflow needs to be controlled so that the airflow does not leak laterally. Otherwise, the airflow pressure is not enough, and the reed will not make a sound, or the sound will not be full. not playing well

And when two blow-suction bodies are inserted through the T-shaped pin 84 and the corresponding matching groove 85, then put the sound-changing slider 3 in front of the upper and lower blow-suction surfaces that are easy to produce steps, and there will be a step difference EF and the binding force of the rubber band is not reliable enough to correct the steps so that the upper and lower blowing and suction surfaces are aligned

Therefore, the airflow will leak out from the gap in the EF section of the step difference, which will easily cause air leakage

[0018] Disadvantage 6: Using the existing two blow-suction body connection structure, a type of harmonica with a sound-changing slider, the harmonica needs to be changed, and the original harmonica, the sound-changing slider positioning part 6 is installed in a certain blow-suction body (like Figure 31 , in order to be installed in the upper blow-suction body, and there are two; the lower blow-suction body does not have the sound-changing slider locator 6), and the sound-changing slider locator 6 will change position with the change of the upper and lower positions of the two blow-suction bodies , the main reason is that the setting method of the locating part 6 of the phonograph slider is unscientific, and the phonograph slider needs twelve positioning holes at close distances. If the holes are dense and the number of holes is large, the manufacturing process will be difficult and difficult. high cost

[0019] Disadvantage seven: use the existing two blow-suction body connection structure, a type of harmonica with variable sliders, and a mouthpiece. After the two blow-suction bodies are connected, they become a whole. This whole also needs to be connected with the mouthpiece. It is more technically feasible to use rubber bands to connect

But this method of connecting with rubber bands is not good

Not only can it not be loaded and unloaded quickly, but it is also not beautiful, and the rubber band is easy to wear and tear

[0020] Other disadvantages of a type of harmonica with existing two blow-suction body connection structures, voice-changing sliders or mouthpieces: the second and third disadvantages of a class of harmonicas without voice-changing slides and mouthpieces , disadvantage four

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