CN219303313U - Structure for reducing key noise of harmonica soundboard - Google Patents
Structure for reducing key noise of harmonica soundboard Download PDFInfo
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- CN219303313U CN219303313U CN202320068177.XU CN202320068177U CN219303313U CN 219303313 U CN219303313 U CN 219303313U CN 202320068177 U CN202320068177 U CN 202320068177U CN 219303313 U CN219303313 U CN 219303313U
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- guide part
- soundboard
- harmonica
- changing plate
- guide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Electrophonic Musical Instruments (AREA)
Abstract
The utility model discloses a structure for reducing key noise of a harmonica soundboard, which belongs to the field of harmonica, and comprises a harmonica body, wherein a blowing nozzle and a soundboard are arranged on the harmonica body, and a plurality of through holes are formed on the soundboard; a plurality of sound producing holes are formed on the harmonica body; a plurality of first guide parts are arranged at the sound changing plate; the plurality of first guide parts are respectively positioned at four corners of the sound changing plate; a plurality of second guide parts are formed between the blowing nozzle and the harmonica body; the second guide part is used for being connected with the first guide part so that the first guide part is in sliding fit with the second guide part; one end of the sound changing plate is provided with a pressing part_, and the sliding of the sound changing plate can be guided through the cooperation of the first guiding part and the second guiding part, so that the purposes of reducing the contact area, reducing friction and noise and simultaneously fixing the sound changing plate without shaking are achieved to a certain extent.
Description
Technical Field
The utility model relates to the field of harmonica, in particular to a structure for reducing key noise of a harmonica soundboard.
Background
When the harmonica is used, the tone changing key is used, and the tone changing plate slides in the harmonica when the tone changing key is pressed, so that the tone changing plate leaks different sound producing holes, different notes are played, and when the tone changing key is not pressed, the original sound of the notes is played; when the key is pressed, the sound blowing hole is covered, the sound hole which is originally covered when not pressed is exposed, and the sound of rising half sound is blown;
however, the existing harmonica is characterized in that the soundboard can be directly contacted with the harmonica body and the mouthpiece, so that the soundboard can be directly contacted with the harmonica body and the mouthpiece when sliding, the contact area of the soundboard with the harmonica body and the mouthpiece is large, noise is easily generated when the soundboard slides, performance is influenced, along with the increase of the service time, scratches are easily left on the soundboard when cleaning, and accordingly the noise generated when the soundboard slides can be further increased, and performance can be seriously influenced.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provide a structure for reducing key noise of a harmonica soundboard, which can realize that the sliding of the soundboard is guided through the cooperation of a first guide part and a second guide part, so that the aims of reducing the contact area to a certain extent, reducing friction and noise and simultaneously fixing the soundboard without shaking are fulfilled.
In order to solve the problems, the utility model adopts the following technical scheme.
The utility model provides a structure that harmonica becomes soundboard and reduces key noise which characterized in that: the mouth organ comprises a mouth organ body, wherein a blowing nozzle and a sound changing plate are arranged on the mouth organ body, and a mounting cavity for mounting the sound changing plate is formed between the blowing nozzle and the mouth organ body; a space for avoiding the movement of the sound changing plate in the installation cavity is formed between the sound changing plate and the installation cavity; wherein, a plurality of through holes are formed on the sound changing plate; a plurality of sound producing holes are formed on the harmonica body; the sound producing holes are distributed along the first dimension array in a plurality, and the sound producing holes are distributed along the second dimension array in two; the distance between two adjacent sound producing holes along the first dimension is a; the two through holes are distributed in a staggered manner along the second dimension; the through holes are distributed in an array along the first dimension, and the distance between two adjacent through holes along the first dimension is 2a; the through hole coincides with the sounding hole; a plurality of first guide parts are arranged at the sound changing plate; the plurality of first guide parts are respectively positioned at four corners of the sound changing plate; a plurality of second guide parts are formed between the blowing nozzle and the harmonica body; the second guide part is used for being connected with the first guide part so that the first guide part is in sliding fit with the second guide part; a pressing part is formed at one end of the sound changing plate. The sliding of the soundboard is guided through the cooperation of the first guide part and the second guide part, so that the contact area between the soundboard and the periphery when the soundboard slides is reduced to a certain extent, the effect of reducing noise when the soundboard slides is realized, and the purpose of fixing the soundboard without shaking is achieved by reducing the contact area and reducing friction.
Preferably, the thickness of the first guiding part is the same as the thickness of the soundboard; the second guide portion is a guide groove and is used for accommodating at least part of the first guide portion so that the first guide portion slides in the second guide portion. The second guide part is the guide way and the second direction is located between blowing nozzle and the harmonica body, so can directly put the sound board between the two, then detain the blowing nozzle, make first guide part and second guide part cooperation to the installation degree of difficulty has been reduced, the installation of being convenient for and dismantlement.
Preferably, the distance between the edge of the first guide part and the edge of the sound changing plate is x, the width of the sound changing plate is y, and x is smaller than y. The contact area of the first guide part and the second guide part is far smaller than the area of the sound changing plate, so that the sound changing plate can reduce noise during sliding due to small friction force during sliding.
Preferably, a through groove is formed between the edge of the first guide part and the edge of the sound changing plate; the root of the first guide part is provided with a connecting part, and the first guide part is connected with the sound changing plate through the connecting part; the connecting part is used for enabling the first guide part to be close to or far away from the sound changing plate under external force; the first guide part is far away from the soundboard and can increase x, and the first guide part is close to the soundboard and can reduce x. Before the soundboard is installed, the first guide part can be outwards pulled out by hand, so that the contact area of the first guide part and the second guide part is increased, the soundboard can be enabled to be more stable in the sliding process to a certain extent, the contact area is increased, the required external force is increased when the soundboard slides due to the increase of the contact area of the first guide part and the second guide part, the force of the pressing part is adjusted, the pressing force can be changed according to personal habits of players, the personal use habits are better adapted, meanwhile, the first guide part can be separated from or close to the soundboard to be pulled, the first guide part can be also enabled to be pulled upwards or downwards, and when the first guide part is pulled upwards or downwards, the pretightening force between the first guide part and the second guide part, namely the pressure is increased, so that the force required by sliding of the soundboard is increased.
Preferably, the outer wall of the first guide part is abutted with the inner wall of the second guide part, so that the first guide part and the second guide part form surface friction; the larger x is, the larger the contact area between the first guide part and the second guide part is.
Preferably, the connecting portion, the first guiding portion and the sound changing plate are integrally formed. The connecting part and the first guiding part can be directly formed on the sound-changing plate in a laser grooving mode, so that the production cost is greatly reduced.
Compared with the prior art, the utility model has the advantages that:
1. according to the scheme, the sliding of the soundboard is guided through the cooperation of the first guide part and the second guide part, so that the purpose of fixing the soundboard without shaking is achieved while friction and noise are reduced by reducing the contact area to a certain extent.
2. The second guide part is a guide groove, and the second guide part is positioned between the mouthpiece and the harmonica body, so that the sound-changing plate can be directly placed between the mouthpiece and the harmonica body, and then the mouthpiece is buckled, so that the first guide part is matched with the second guide part, the installation difficulty is reduced, and the installation and the disassembly are convenient.
3. Before the soundboard is installed, the first guide part can be outwards broken out by hand, so that the contact area of the first guide part and the second guide part is increased, the soundboard can be enabled to be more stable in the sliding process to a certain extent, the required external force is increased when the soundboard slides due to the fact that the contact area of the first guide part and the second guide part is increased, the force of pressing the pressing part is adjusted, the pressing force can be changed according to personal habits of players, and the use habits of individuals are better adapted.
Drawings
FIG. 1 is a schematic overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model with the mouthpiece removed;
FIG. 3 is a schematic view of the structure of the sound board of the present utility model with the sound board removed;
FIG. 4 is a schematic diagram of a soundboard according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a soundboard according to another embodiment of the present utility model.
The reference numerals in the figures illustrate:
the harmonica body 1, the sounding hole 11, the mouthpiece 2, the blowing hole 21, the soundboard 3, the through hole 31, the first guide portion 4, the pressing portion 5, the through groove 6, and the connecting portion 7.
Detailed Description
Example 1:
referring to fig. 1 to fig. 4, a structure for reducing key noise of a harmonica soundboard is characterized in that: the harmonica comprises a harmonica body 1, wherein a mouthpiece 2 and a sound changing plate 3 are arranged on the harmonica body 1, and a mounting cavity for mounting the sound changing plate 3 is formed between the mouthpiece 2 and the harmonica body 1; a space for avoiding the movement of the soundboard 3 in the installation cavity is formed between the soundboard 3 and the installation cavity; wherein, a plurality of through holes 31 are formed on the soundboard 3; the harmonica body 1 is formed with a plurality of sound emitting holes 11; the pronunciation holes 11 are distributed along the first dimension array, and two pronunciation holes are distributed along the second dimension array; the distance between two sound emitting holes 11 adjacent along the first dimension is a; the two through holes 31 are staggered along the second dimension; the plurality of through holes 31 are arrayed along the first dimension, and the distance between two adjacent through holes 31 along the first dimension is 2a; the through hole 31 coincides with the sound emitting hole 11; a plurality of first guide parts 4 are arranged at the soundboard 3; the first guide parts 4 are respectively positioned at four corners of the soundboard 3; a plurality of second guide parts are formed between the mouthpiece 2 and the harmonica body 1; the second guiding part is used for being connected with the first guiding part 4 so that the first guiding part 4 is in sliding fit with the second guiding part; a pressing portion 5 is formed at one end of the tone plate 3. The pressing part 5 is a button, the pressing part 5 is fixedly connected with the soundboard 3, and the first guiding part 4 is of a board body structure. The sliding of the soundboard 3 is guided through the cooperation of the first guide part 4 and the second guide part, so that the contact area between the soundboard 3 and the surrounding is reduced to a certain extent when the soundboard 3 slides, the effect of reducing noise when the soundboard 3 slides is realized, and the purpose of reducing the contact area and reducing friction and simultaneously achieving the purpose of fixing the soundboard 3 without shaking is achieved.
The thickness of the first guide part 4 is the same as that of the soundboard 3; the second guide is a guide slot for receiving at least part of the first guide 4 to slide the first guide 4 in the second guide. The second guide part is a guide groove and is positioned between the mouthpiece 2 and the harmonica body 1, so that the soundboard 3 can be directly placed between the mouthpiece 2 and the harmonica body, and then the mouthpiece 2 is buckled, so that the first guide part 4 is matched with the second guide part, the installation difficulty is reduced, and the harmonica is convenient to install and detach. The distance between the edge of the first guide 4 and the edge of the soundboard 3 is x, and the width of the soundboard 3 is y, x < y. The contact area of the first guide part 4 and the second guide part is far smaller than the area of the soundboard 3, so that the soundboard 3 has small friction force when sliding, and noise is reduced when sliding.
Example 2
With reference to figures 1-5 of the drawings,
on the basis of the embodiment 1, a through groove 6 is formed between the edge of the first guide part 4 and the edge of the soundboard 3; the root of the first guiding part 4 is provided with a connecting part 7, and the first guiding part 4 is connected with the sound changing plate 3 through the connecting part 7; the connecting part 7 is used for enabling the first guiding part 4 to approach to or separate from the soundboard 3 under the external force; the first guide 4 increases x away from the soundboard 3 and the first guide 4 decreases x toward the soundboard 3. Before the soundboard 3 is installed, the first guide part 4 can be outwards pulled out by hand, so that the contact area of the first guide part 4 and the second guide part is increased, the soundboard 3 can be more stable in the sliding process to a certain extent due to the increase of the contact area of the first guide part 4 and the second guide part, the required external force is increased when the soundboard 3 slides, the force of the pressing part 5 is adjusted, the pressing force can be changed according to personal habits of players, the personal use habits are better adapted, meanwhile, the first guide part 4 can be separated from or close to the soundboard 3 to be pulled, and the first guide part 4 can be upwards or downwards pulled, so that the pretightening force between the first guide part 4 and the second guide part, namely the pressure, can be increased when the first guide part 4 is upwards or downwards pulled, and the resistance mode of the soundboard 3 during sliding is adjusted is further increased.
The outer wall of the first guide part 4 is abutted with the inner wall of the second guide part, so that the first guide part 4 and the second guide part form surface friction; the larger x is, the larger the contact area between the first guide portion 4 and the second guide portion is. The manner of increasing the contact area can increase the force required for sliding the soundboard. The connecting portion 7, the first guide portion 4 and the soundboard 3 are integrally formed. The connecting part 7 and the first guiding part 4 can be directly formed on the soundboard 3 in a laser grooving mode, so that the production cost is greatly reduced.
The use principle is as follows:
the positions of the through holes 31 and the positions of the sound emitting holes 11 refer to fig. 2 and 3, and the sound emitting plate will block a part of the sound emitting holes 11 and also a part of the sound emitting holes 11 will not be blocked; the sounding holes 11 in the second dimension are a row of sounding holes 11, a plurality of blowing holes 21 are formed on the blowing nozzle 2, and the blowing holes 21 are opposite to the row of sounding holes 11; then each blowing hole 21 corresponds to a row of sound emitting holes 11; when the mouth-piece is used, the soundboard 3 can block a part of the sounding holes 11, so that each mouthpiece 2 can only be opposite to one sounding hole 11, the soundboard 3 can be driven to slide through the pressing part 5, the soundboard 3 can block the sounding holes 11 which are not blocked originally, the through holes 31 are opposite to the sounding holes 11 blocked before, and accordingly different sounding holes 11 can be opposite to the mouthpieces 2, different sounds can be played or absorbed, and accordingly the soundness of the mouth-piece during playing can be achieved.
Claims (6)
1. The utility model provides a structure that harmonica becomes soundboard and reduces key noise which characterized in that: the harmonica comprises a harmonica body (1), wherein a blowing nozzle (2) and a sound changing plate (3) are arranged on the harmonica body (1), and a mounting cavity for mounting the sound changing plate (3) is formed between the blowing nozzle (2) and the harmonica body (1); a space for avoiding the movement of the sound changing plate (3) in the installation cavity is formed between the sound changing plate (3) and the installation cavity; wherein, a plurality of through holes (31) are formed on the sound changing plate (3); a plurality of sound producing holes (11) are formed on the harmonica body (1); the pronunciation holes (11) are distributed along a first dimension array, and two pronunciation holes are distributed along a second dimension array; the distance between two adjacent sound producing holes (11) along the first dimension is a; the through holes (31) are distributed in a staggered manner along the second dimension; the through holes (31) are distributed in a plurality along the first dimension array, and the distance between two adjacent through holes (31) along the first dimension is 2a; the through hole (31) is overlapped with the sound emitting hole (11); a plurality of first guide parts (4) are arranged at the sound changing plate (3); the first guide parts (4) are respectively positioned at four corners of the sound changing plate (3); a plurality of second guide parts are formed between the blowing nozzle (2) and the harmonica body (1); the second guide part is used for being connected with the first guide part (4) so that the first guide part (4) is in sliding fit with the second guide part; a pressing part (5) is formed at one end of the sound changing plate (3).
2. The structure for reducing key noise of harmonica soundboard according to claim 1, wherein: the thickness of the first guide part (4) is the same as that of the sound changing plate (3); the second guide part is a guide groove and is used for accommodating at least part of the first guide part (4) so that the first guide part (4) slides in the second guide part.
3. The structure for reducing key noise of harmonica soundboard according to claim 2, wherein: the distance between the edge of the first guide part (4) and the edge of the sound changing plate (3) is x, the width of the sound changing plate (3) is y, and x is less than y.
4. The structure for reducing key noise of harmonica soundboard according to claim 1 or 2, characterized in that: a through groove (6) is formed between the edge of the first guide part (4) and the edge of the sound changing plate (3); a connecting part (7) is formed at the root part of the first guiding part (4), and the first guiding part (4) is connected with the sound changing plate (3) through the connecting part (7); the connecting part (7) is used for enabling the first guiding part (4) to be close to or far away from the sound changing plate (3) under external force; the first guide part (4) is far away from the soundboard (3) and can increase x, and the first guide part (4) is close to the soundboard (3) and can decrease x.
5. The structure for reducing key noise of harmonica soundboard of claim 4, wherein: the outer wall of the first guide part (4) is abutted with the inner wall of the second guide part, so that the first guide part (4) and the second guide part form surface friction; the larger x is, the larger the contact area between the first guide part (4) and the second guide part is.
6. The structure for reducing key noise of harmonica soundboard of claim 4, wherein: the connecting part (7), the first guiding part (4) and the sound changing plate (3) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320068177.XU CN219303313U (en) | 2023-01-10 | 2023-01-10 | Structure for reducing key noise of harmonica soundboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320068177.XU CN219303313U (en) | 2023-01-10 | 2023-01-10 | Structure for reducing key noise of harmonica soundboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303313U true CN219303313U (en) | 2023-07-04 |
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ID=86949701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320068177.XU Active CN219303313U (en) | 2023-01-10 | 2023-01-10 | Structure for reducing key noise of harmonica soundboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303313U (en) |
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2023
- 2023-01-10 CN CN202320068177.XU patent/CN219303313U/en active Active
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