Violin mechanical tuning peg

Abstract

The utility model discloses a violin mechanical tuning peg, which relates to the technical field of violin tuning pegs, and comprises an outer shaft fixed with a violin, an inner shaft rotatably arranged in the outer shaft, a limit bolt and an adjusting assembly, the middle section of the outer shaft is provided with an opening through which a string passes, the inner shaft is internally provided with a through hole through which the string passes, and the outer end of the inner shaft is provided with a fixed cylinder. The inner part of the fixed cylinder is embedded with the outer part of the outer shaft, the outer side of the fixed cylinder is provided with a limiting hole, the limiting bolt is embedded in the limiting hole, the outer side of the outer shaft is provided with a threaded hole which is in threaded connection with the limiting bolt, and the adjusting assembly which is used for driving the inner shaft to rotate is arranged in the fixed cylinder. The outer shaft is fixed with the violin, the tightness of the string is adjusted by rotating the inner shaft, the violin is prevented from being abraded due to overall rotation of the tuning peg, and only the inner shaft needs to be pulled out and replaced when the tuning peg needs to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of violin tuning pin technology, specifically a violin mechanical tuning pin. Background Technology

[0002] Mechanical tuning pegs on a violin are knobs mounted on the head of the violin and used to adjust the tension and pitch of the strings. Mechanical tuning pegs are usually made of metal, but sometimes other materials such as plastic or wood are also used. They are usually cylindrical and have a knob on them that can be rotated to adjust the tension and pitch of the strings.

[0003] Patent CN220420239U discloses a cello mechanical tuning pin, including a steel wire skeleton head, a protruding mechanism fixed at the lower end of the steel wire skeleton head, a string and a connecting rod at the lower end of the protruding mechanism, a connecting bead connected at the lower end of the connecting rod, a string sleeved at the lower end of the protruding mechanism, a rotating shaft sleeved at the lower end of the string, and a through hole at the front end of the rotating shaft;

[0004] The aforementioned device is fixed to the violin. When in use, the tuning peg is rotated, which generates rotational friction between the tuning peg and the violin. Over time, this causes wear at the connection between the tuning peg and the violin. When replacing the tuning peg, a gap will remain at the contact point, affecting the tightness of the connection between the tuning peg and the violin, and consequently affecting the accuracy of the string length after adjustment. Therefore, we propose a mechanical tuning peg for the violin. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a mechanical violin tuning pin. The tuning pin is split into an outer shaft and an inner shaft. The outer shaft is fixed to the violin, and the inner shaft is rotated to adjust the string tension. This avoids the entire tuning pin rotating and causing wear on the violin. When the tuning pin needs to be replaced, the inner shaft can be pulled out and replaced.

[0006] In order to solve the above-mentioned technical problems, the present invention solves the problem of wear on violins when the tuning pins rotate through the following technical solution.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A violin mechanical tuning pin includes an outer shaft fixed to the violin and an inner shaft rotatably disposed within the outer shaft, a limiting bolt, and an adjusting assembly. The outer shaft has an opening in the middle section for the passage of strings, and the inner shaft has a through hole for the passage of strings. A fixed cylinder is provided at the outer end of the inner shaft, the inside of the fixed cylinder is fitted with the outside of the outer shaft, and a limiting hole is provided on the outside of the fixed cylinder. A limiting bolt is fitted into the limiting hole. A threaded hole is provided on the outside of the outer shaft for threaded connection with the limiting bolt. An adjusting assembly for driving the rotation of the inner shaft is disposed within the fixed cylinder.

[0009] Preferably, the adjusting component includes a rotating shaft rotatably disposed inside a fixed cylinder. One end of the rotating shaft passes through the side of the fixed cylinder and is fixedly provided with a first rotating block. A main gear is fixedly provided on the outside of the rotating shaft, and a secondary gear is fixedly provided on the outside of the inner shaft. Both the secondary gear and the main gear are located inside the fixed cylinder, and the secondary gear is meshed with the main gear. A limiting member is provided on the outside of the fixed cylinder to restrict the rotation of the inner shaft. By rotating the first rotating block, the inner shaft is driven to rotate, thereby adjusting the tension of the strings.

[0010] Preferably, a fixed ring is fixed inside the fixed cylinder, and an auxiliary ring is fixed outside the inner shaft. The auxiliary ring and the annular groove on the inner side of the fixed ring are fitted together, allowing the inner shaft and the fixed cylinder to slide together, but the fixed cylinder will not affect the rotation of the inner shaft.

[0011] Preferably, the limiting component includes a rotating screw with a threaded connection to the side of the fixed cylinder. A second rotating block is fixedly provided at the outer end of the rotating screw, and a limiting block is rotatably provided at the inner end of the rotating screw. The limiting block is located inside the fixed cylinder, and the end of the limiting block away from the rotating screw has a toothed groove that engages with the secondary gear. A limiting track is symmetrically fixed inside the fixed cylinder, and the two sides of the limiting block slide with the limiting track. The limiting block is used to limit the secondary gear, thereby restricting the rotation of the inner shaft.

[0012] Preferably, the outer diameter of the main gear is smaller than that of the secondary gear, which facilitates the slow rotation of the inner shaft.

[0013] Preferably, the outer side of the inner shaft is uniformly provided with anti-slip texture, which is located inside the opening to prevent the strings from sliding left and right when they are wrapped around the inner shaft.

[0014] Preferably, there are two limiting bolts, which are symmetrically arranged in the limiting holes on the outside of the fixed cylinder and are threadedly connected to the threaded holes on the outside of the outer shaft respectively, thereby improving the connection strength between the fixed cylinder and the outer shaft.

[0015] Preferably, both the outer sides of the first and second rotating blocks are provided with anti-slip surfaces to prevent slippage when personnel rotate them.

[0016] Preferably, the bottom of the limiting bolt, which is spirally installed in the threaded hole, does not contact the inner shaft, so as to avoid the limiting bolt pressing against the inner shaft and affecting the normal rotation of the inner shaft.

[0017] Preferably, the inner shaft is made of a cermet material to improve its strength and wear resistance.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention separates the tuning pegs into an outer shaft and an inner shaft. The outer shaft is fixed to the violin, and the inner shaft is rotated to adjust the string tension. This avoids the entire tuning peg rotating and causing wear on the violin. When the inner shaft wears out and needs to be replaced, the inner shaft can be pulled out and replaced. The outer shaft is fixed to the violin and will not wear out, thus preventing wear on the violin.

[0020] By setting a limiting block inside the fixed cylinder that engages with the secondary gear, the rotation of the secondary gear is restricted by the limiting block, thereby restricting the rotation of the inner shaft and fixing the tension of the strings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the internal structure of the fixed cylinder of this utility model;

[0025] Figure 4 This is a schematic diagram of the limiting component structure of this utility model;

[0026] Figure 5 This is a schematic diagram showing the connection between the fixed cylinder and the outer shaft of this utility model;

[0027] Figure 6 This is a cross-sectional view of the overall structure of this utility model.

[0028] Drawing number explanation: 1. Outer shaft; 2. Inner shaft; 3. Opening; 4. Through hole; 5. Limiting bolt; 6. Fixing cylinder; 7. Limiting hole; 8. Threaded hole; 9. Adjusting component; 10. Rotating shaft; 11. First rotating block; 12. Main gear; 13. Secondary gear; 14. Limiting component; 15. Fixing ring; 16. Auxiliary ring; 17. Rotating screw; 18. Limiting block; 19. Gear groove; 20. Limiting track; 21. Anti-slip texture; 22. Second rotating block. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or gear component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0032] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0033] Example:

[0034] Please see Figures 1-6 A violin mechanical tuning pin includes an outer shaft 1 fixed to the violin and an inner shaft 2 rotatably disposed within the outer shaft 1, a limiting bolt 5, and an adjusting assembly 9. The outer shaft 1 has an opening 3 in its middle section for the passage of strings. The inner shaft 2 has a through hole 4 for the passage of strings, located within the opening 3. The strings are wound around the inner shaft 2 through the through hole 4. Anti-slip textures 21 are evenly distributed on the outer side of the inner shaft 2, located within the opening 3, to prevent the strings from sliding left and right when wound around the inner shaft 2. A fixing cylinder 6 is provided at the outer end of the inner shaft 2, the inside of which is fitted into the outside of the outer shaft 1. A fixing ring 15 is fixedly disposed inside the fixing cylinder 6. An auxiliary ring 16 is fixedly disposed on the outer side of the inner shaft 2. The auxiliary ring 16 and the inner side of the fixing ring 15 are connected... The annular groove fit allows the inner shaft 2 and the fixed cylinder 6 to slide together, but the fixed cylinder 6 will not affect the rotation of the inner shaft 2. The fixed cylinder 6 has a limiting hole 7 on its outer side, and the limiting bolt 5 is fitted into the limiting hole 7. The outer shaft 1 has a threaded hole 8 on its outer side that is threaded to the limiting bolt 5. The limiting bolt 5 passes through the limiting hole 7 and is threaded into the threaded hole 8, which can fix the fixed cylinder 6 on the outer shaft 1. At the same time, there are two limiting bolts 5, which are symmetrically arranged in the limiting holes 7 on the outer side of the fixed cylinder 6 and are threaded to the threaded holes 8 on the outer side of the outer shaft 1, respectively, to improve the connection strength between the fixed cylinder 6 and the outer shaft 1. The adjustment component 9 for driving the rotation of the inner shaft 2 is located in the fixed cylinder 6.

[0035] The following describes some embodiments of this application in detail with reference to the accompanying drawings:

[0036] Please see Figures 1-6 By splitting the tuning pegs into an outer shaft 1 and an inner shaft 2, the outer shaft 1 is fixed to the violin, and the inner shaft 2 is rotated to adjust the string tension. This avoids the entire tuning peg rotating and wearing down the violin. When the inner shaft 2 wears out and needs to be replaced, the inner shaft 2 can be pulled out and replaced. The outer shaft 1 is fixed to the violin and will not wear out, thus preventing wear on the violin.

[0037] The adjusting component 9 includes a rotating shaft 10, which is rotatably mounted inside a fixed cylinder 6. One end of the rotating shaft 10 passes through the side of the fixed cylinder 6 and is fixedly mounted with a first rotating block 11. A main gear 12 is fixedly mounted on the outside of the rotating shaft 10, and a secondary gear 13 is fixedly mounted on the outside of the inner shaft 2. Both the secondary gear 13 and the main gear 12 are located inside the fixed cylinder 6, and the secondary gear 13 is meshed with the main gear 12. The outer diameter of the main gear 12 is smaller than the outer diameter of the secondary gear 13. Furthermore, the gear ratio between the main gear 12 and the secondary gear 13 can reach 1:8, that is, when the main gear 12 rotates one revolution, the secondary gear 13 rotates one-eighth of a revolution. This allows the user to slowly rotate the inner shaft 2 and thus slowly adjust the tension of the strings, avoiding breaking the strings. A limiting member 14 is provided on the outside of the fixed cylinder 6 to restrict the rotation of the inner shaft 2. By rotating the first rotating block 11, the inner shaft 2 is driven to rotate, thereby adjusting the tension of the strings.

[0038] Meanwhile, the limiting component 14 includes a rotating screw 17, which is threaded onto the side of the fixed cylinder 6. A second rotating block 22 is fixedly provided at the outer end of the rotating screw 17, and a limiting block 18 is rotatably provided at the inner end of the rotating screw 17. The limiting block 18 is located inside the fixed cylinder 6. The end of the limiting block 18 away from the rotating screw 17 is provided with a tooth groove 19 that engages with the secondary gear 13. A limiting track 20 is symmetrically fixed inside the fixed cylinder 6. The two sides of the limiting block 18 slide with the limiting track 20. The limiting block 18 is used to limit the secondary gear 13, thereby restricting the rotation of the inner shaft 2.

[0039] To avoid wear and tear on the violin when adjusting the string tension using the tuning pegs, the implementation method of this application is described as follows:

[0040] First, fix the outer shaft 1 in the designated position on the violin;

[0041] Then, the inner shaft 2 is inserted into the outer shaft 1, and the limiting bolt 5 is screwed into the threaded hole 8 of the outer shaft 1 through the limiting hole 7, thereby fixing the fixed shaft to the outer shaft 1, and the string is passed through the through hole 4 and wound onto the inner shaft 2.

[0042] Then, by rotating the first rotating block 11, the rotating shaft 10 is driven to rotate, which in turn drives the main gear 12 on the rotating shaft 10 to rotate. The main gear 12 drives the auxiliary gear 13, which has a much larger number of teeth than the main gear 12, to rotate, thereby driving the inner shaft 2 to rotate slowly in the fixed cylinder 6 and the outer shaft 1, adjusting the tension of the strings wound on the inner shaft 2.

[0043] Finally, by rotating the second rotating block 22, the rotating screw 17 is driven to rotate. The rotating screw 17 drives the limiting block 18 to move toward the secondary gear 13 until the tooth groove 19 of the limiting block 18 is engaged with the tooth of the secondary gear 13, thereby limiting the rotation of the secondary gear 13, thus limiting the rotation of the inner shaft 2, and thus fixing the tension of the string.

[0044] Since the rotating screw 17 is threadedly connected to the fixed cylinder 6, the position of the limiting block 18 can be limited in real time, preventing the limiting block 18 from moving arbitrarily due to its own weight.

[0045] When the inner shaft 2 is worn too much at the contact point with the strings and needs to be replaced, simply unscrew the limiting bolt 5, pull the fixing sleeve 6 together with the inner shaft 2 out of the outer shaft 1, and then insert the new one. The replacement is quick and easy.

[0046] like Figure 2 As shown, in some embodiments, in order to prevent slippage when personnel rotate the first rotating block 11 and the second rotating block 22, anti-slip surfaces are provided on the outer sides of the first rotating block 11 and the second rotating block 22.

[0047] like Figure 6 As shown, in some embodiments, in order to prevent the limiting bolt 5 from abutting against the inner shaft 2 and affecting the normal rotation of the inner shaft 2, the bottom of the limiting bolt 5, which is helically disposed in the threaded hole 8, does not contact the inner shaft 2.

[0048] In some embodiments, to improve the strength and wear resistance of the inner shaft 2, the inner shaft 2 is made of a cermet material.

[0049] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A violin mechanical tuning peg, characterized in that, include: An outer shaft (1) fixed to the violin and an inner shaft (2) rotatably disposed within the outer shaft (1). The middle section of the outer shaft (1) is provided with an opening (3) for the strings to pass through, and the inner shaft (2) is provided with a through hole (4) for the strings to pass through. The inner shaft (2) is provided with a fixed cylinder (6) at its outer end. The inside of the fixed cylinder (6) is fitted with the outside of the outer shaft (1). The fixed cylinder (6) is provided with a limiting hole (7) on its outer side. The limiting bolt (5) is fitted into the limiting hole (7). The outer shaft (1) is provided with a threaded hole (8) that is threadedly connected to the limiting bolt (5) on its outer side. Adjustment component (9), which is used to drive the inner shaft (2) to rotate, is located inside the fixed cylinder (6).

2. The violin mechanical tuning pin according to claim 1, characterized in that: The adjusting component (9) includes a rotating shaft (10), which is rotatably disposed inside the fixed cylinder (6). One end of the rotating shaft (10) passes through the side of the fixed cylinder (6) and is fixedly provided with a first rotating block (11). A main gear (12) is fixedly provided on the outside of the rotating shaft (10), and a secondary gear (13) is fixedly provided on the outside of the inner shaft (2). The secondary gear (13) and the main gear (12) are both located inside the fixed cylinder (6). The secondary gear (13) is meshed with the main gear (12). A limiting member (14) for limiting the rotation of the inner shaft (2) is provided on the outside of the fixed cylinder (6).

3. A violin mechanical tuning peg according to claim 2, characterized in that: The fixed cylinder (6) is fixedly provided with a fixed ring (15) inside, and the inner shaft (2) is fixedly provided with an auxiliary ring (16) outside. The auxiliary ring (16) is fitted into the annular groove inside the fixed ring (15).

4. A violin mechanical tuning pin according to claim 3, characterized in that: The limiting component (14) includes a rotating screw (17), which is threaded onto the side of the fixed cylinder (6). A second rotating block (22) is fixedly provided at the outer end of the rotating screw (17), and a limiting block (18) is rotatably provided at the inner end of the rotating screw (17). The limiting block (18) is located inside the fixed cylinder (6). The end of the limiting block (18) away from the rotating screw (17) is provided with a tooth groove (19) that engages with the secondary gear (13). A limiting track (20) is symmetrically fixed inside the fixed cylinder (6), and the two sides of the limiting block (18) slide in cooperation with the limiting track (20).

5. A violin mechanical tuning pin according to claim 2, characterized in that: The outer diameter of the main gear (12) is smaller than the outer diameter of the secondary gear (13).

6. A violin mechanical tuning pin according to claim 2, characterized in that: The inner shaft (2) is uniformly provided with anti-slip texture (21) on the outer side, and the anti-slip texture (21) is provided in the opening (3).

7. A violin mechanical tuning peg according to claim 2, characterized in that: Two limiting bolts (5) are provided, which are symmetrically arranged in the limiting holes (7) on the outside of the fixed cylinder (6) and are respectively threaded to the threaded holes (8) on the outside of the outer shaft (1).

8. A violin mechanical tuning pin according to claim 4, characterized in that: Both the first rotating block (11) and the second rotating block (22) have anti-slip surfaces on their outer sides.

9. A violin mechanical tuning peg according to claim 1, characterized in that: The bottom of the limiting bolt (5), which is spirally disposed in the threaded hole (8), does not contact the inner shaft (2).

10. A violin mechanical tuning peg according to claim 1, characterized in that: The inner shaft (2) is made of cermet material.

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