CN211124987U - Hinge for accordion bass key - Google Patents
Hinge for accordion bass key Download PDFInfo
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- CN211124987U CN211124987U CN201921750090.0U CN201921750090U CN211124987U CN 211124987 U CN211124987 U CN 211124987U CN 201921750090 U CN201921750090 U CN 201921750090U CN 211124987 U CN211124987 U CN 211124987U
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- circular connecting
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Abstract
The utility model discloses an accordion bass key hinge, including the hinge board, microscler connecting hole has all been seted up to the left and right sides of hinge board lateral wall, and the middle part of hinge board lateral wall has seted up circular connecting hole, circular connecting hole is 8, divides two lines, and upper and lower one-to-one symmetrical arrangement is on the lateral wall of hinge board, and circular connecting hole vertical column interval is 35.75mm, and the line interval is 6.5mm, hinge board upper end has been seted up white key and has been installed the groove and black key and install the groove, and the white key is installed the groove and the quantity in black key and is 5, and equidistance cross arrangement is in the upper end of hinge board, the hinge board includes wear-resistant coating, anticorrosive coating and aluminum plate. This kind of accordion bass key hinge can improve the rationality and the compact structure nature of hinge overall arrangement, makes its and the black and white key of bass key be connected more stably inseparable, has promoted the intensity and the hardness of hinge plate, and then reduces the damage degree of hinge plate in the performance process, promotes the life of hinge plate.
Description
Technical Field
The utility model relates to a musical instrument technical field specifically is an accordion bass key hinge.
Background
An accordion (accoordion) is a keyboard instrument which can play solo and accompaniment, not only can play graceful melody of a single part, but also can play music of multiple parts, and can play rich harmony with both hands like a piano. The accordion has large sound and rich tone variation, and the fingers and the bellows are skillfully combined, so that various music with different styles can be played, which is incomparable with many musical instruments; besides independent playing, the music instrument can also participate in repetition and ensemble, so that one accordion is a small band. In addition, the pitch is fixed, the learning is easy, the understanding is easy, the volume is small, and the carrying is convenient, so that the accordion is very suitable for players of different ages to entertain and play, and can also be conveniently carried to schools and theaters to play. The existing accordion performance keyboard can not be separated from the assembly connection of various combination keys, wherein, the bass key needs to be connected by a hinge during the assembly, and the existing bass key hinge has the defects of inaccurate structure size, poor strength, low strength and easy damage. Therefore, an accordion bass key hinge is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an accordion bass key hinge to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an accordion bass key hinge comprises a hinge plate, wherein the left side and the right side of the side wall of the hinge plate are respectively provided with a long connecting hole, the middle part of the side wall of the hinge plate is provided with a circular connecting hole, the axial distance between the central axes of the two long connecting holes is 178.75mm, the length and the width of each long connecting hole are respectively 8.8mm and 2.3mm, the circular connecting holes are 8 and are divided into two rows which are symmetrically arranged on the side wall of the hinge plate one by one from top to bottom, the longitudinal distance between the circular connecting holes is 35.75mm, the row distance between the circular connecting holes at the left end part and the right end part and the axial distance between the central axes of the adjacent long connecting holes are 35.75mm, the upper end of the hinge plate is provided with a white key installation groove and a black key installation groove, the number of the white key installation groove and the number of the black key installation groove are 5, the white key installation grooves and the black key installation grooves are equidistantly and are crossly arranged at the upper end of the hinge plate, and the white key groove and, the length and width that the groove was installed to the white key is 15.25mm and 11.5mm respectively, the length and width that the groove was installed to the black key is 10.6mm and 11.5mm respectively, the hinge plate includes wear-resistant coating, anticorrosive coating and aluminum plate, aluminum plate lateral wall parcel has anticorrosive coating, anticorrosive coating lateral wall spraying has wear-resistant coating.
Preferably, the upper end and the lower end of the long connecting hole are both semicircular slotted holes, and the inner diameter of the connecting hole is 2.3 mm.
Preferably, the inner diameter of the circular connecting hole is 2.3 mm.
Preferably, the black key installation groove is in one-to-one correspondence with the circular connecting hole in the vertical direction, and the black key installation groove is collinear with the central axis of the corresponding circular connecting hole.
Preferably, the corrosion-resistant coating and the wear-resistant coating are respectively a polyolefin coating and a KN17 high-molecular ceramic polymer wear-resistant coating.
Compared with the prior art, the beneficial effects of the utility model are that: according to the accordion bass key hinge, the white key installation groove, the black key installation groove, the circular connecting hole and the long connecting hole which are precise in size are arranged, so that the reasonability and the structural compactness of the layout of the hinge can be improved, and the connection between the hinge and the black and white keys of the bass keys is more stable and tight; through setting up anticorrosive coating and wear-resisting coating, can promote the corrosion resistance and the wearability of hinge board, promote the intensity and the hardness of hinge board, and then reduce the damage degree of hinge board in the performance process, promote the life of hinge board.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a partial sectional view of the hinge plate of the present invention.
In the figure: the key board comprises a hinge board 1, a wear-resistant coating 11, an aluminum plate 12, an anti-corrosion coating 13, a circular connecting hole 2, a long connecting hole 3, a white key installation groove 4 and a black key installation groove 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an accordion bass key hinge, includes hinge plate 1, microscler connecting hole 3 has all been seted up to the left and right sides of 1 lateral wall of hinge plate, and the middle part of 1 lateral wall of hinge plate has seted up circular connecting hole 2, two the interaxial distance of 3 axis of microscler connecting hole is 178.75mm, and the length and width of microscler connecting hole 3 is 8.8mm and 2.3mm respectively, the upper and lower both ends of microscler connecting hole 3 are the semicircle slotted hole, and the internal diameter is 2.3 mm. The inner diameter of the circular connecting hole 2 is 2.3 mm. The round connecting holes 2 are arranged on the side wall of the hinge plate 1 in two rows, the round connecting holes 2 are symmetrically arranged on the side wall of the hinge plate 1 one by one, the longitudinal row spacing of the round connecting holes 2 is 35.75mm, the row spacing is 6.5mm, the axial spacing between the round connecting holes 2 at the left end and the right end and the central axis of the adjacent long connecting hole 3 is 35.75mm, the precise distinguishing design of the round connecting holes 2 and the long connecting holes 3 ensures that the position layout is more reasonable and compact, the upper end of the hinge plate 1 is provided with a white key installation groove 4 and a black key installation groove 5, the number of the white key installation grooves 4 and the number of the black key installation grooves 5 are 5, the white key installation grooves 4 and the black key installation grooves 5 are arranged on the upper end of the hinge plate 1 in an equidistant and crossed manner, the spacing between the white key installation groove 4 and the adjacent black key installation groove 5 is 4.95mm, the long width of the white key installation grooves 4 is respectively 15.25mm and 11.5mm, the long width of the black key installation grooves 5 is respectively 10.6mm and the bottom of the black key installation groove is just equal to the bottom of the black key installation groove 5, the black key installation grooves 5 are in one-to-one correspondence with the circular connecting holes 2 from top to bottom, and the black key installation grooves 5 are collinear with the central axes of the corresponding circular connecting holes 2. The hinge plate 1 comprises a wear-resistant coating 11, an anti-corrosion coating 13 and an aluminum plate 12, the outer side wall of the aluminum plate 12 is wrapped with the anti-corrosion coating 13, the outer side wall of the anti-corrosion coating 13 is sprayed with the wear-resistant coating 11, the anti-corrosion coating 13 and the wear-resistant coating 11 are respectively a polyolefin coating and a KN17 high-molecular ceramic polymer wear-resistant coating, the polyolefin coating is high in corrosion resistance, and has good electrical insulation and water resistance, so that the corrosion resistance of the hinge plate 1 can be improved; KN17 high-molecular ceramic polymer wear-resistant coating, its main component is nanometer ceramic, and hardness is high, and the wearability is good, can satisfy the demand of hinge board 1 wearability, improves hinge board 1's life.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An accordion bass key hinge, includes hinge plate (1), its characterized in that: the hinge plate is characterized in that the left side and the right side of the side wall of the hinge plate (1) are respectively provided with a long connecting hole (3), the middle part of the side wall of the hinge plate (1) is provided with a circular connecting hole (2), the axial distance between the central axes of the two long connecting holes (3) is 178.75mm, the length and the width of each long connecting hole (3) are respectively 8.8mm and 2.3mm, the circular connecting holes (2) are divided into two rows, the two rows are symmetrically arranged on the side wall of the hinge plate (1) one by one from top to bottom, the longitudinal distance between the circular connecting holes (2) is 35.75mm, the row distance between the circular connecting holes (2) at the left end part and the right end part and the axial distance between the central axes of the adjacent long connecting holes (3) is 35.75mm, the upper end of the hinge plate (1) is provided with a white key installation groove (4) and a black key installation groove (5), the white key installation grooves (4) and the black key installation grooves (5) are 5), and are arranged at the upper end of, the interval that groove (5) were installed to white key (4) rather than adjacent black key is 4.95mm, the length width that groove (4) were installed to the white key is 15.25mm and 11.5mm respectively, the length width that groove (5) were installed to the black key is 10.6mm and 11.5mm respectively, hinge board (1) is including wear-resistant coating (11), anticorrosive coating (13) and aluminum plate (12), aluminum plate (12) lateral wall parcel has anticorrosive coating (13), anticorrosive coating (13) lateral wall spraying has wear-resistant coating (11).
2. An accordion bass key hinge as defined in claim 1, wherein: the upper end and the lower end of the long connecting hole (3) are both semicircular slotted holes, and the inner diameter is 2.3 mm.
3. An accordion bass key hinge as defined in claim 1, wherein: the inner diameter of the circular connecting hole (2) is 2.3 mm.
4. An accordion bass key hinge as defined in claim 1, wherein: the black key installation grooves (5) are in up-down one-to-one correspondence with the positions of the circular connecting holes (2), and the central axes of the black key installation grooves (5) and the corresponding circular connecting holes (2) are collinear.
5. An accordion bass key hinge as defined in claim 1, wherein: the corrosion-resistant coating (13) and the wear-resistant coating (11) are respectively a polyolefin coating and a KN17 high-molecular ceramic polymer wear-resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921750090.0U CN211124987U (en) | 2019-10-18 | 2019-10-18 | Hinge for accordion bass key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921750090.0U CN211124987U (en) | 2019-10-18 | 2019-10-18 | Hinge for accordion bass key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211124987U true CN211124987U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921750090.0U Active CN211124987U (en) | 2019-10-18 | 2019-10-18 | Hinge for accordion bass key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211124987U (en) |
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2019
- 2019-10-18 CN CN201921750090.0U patent/CN211124987U/en active Active
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