Knob

Abstract

The utility model relates to the technical field of a lycoris, and discloses a lycoris button which comprises an installation column, the interior of the installation column is hollow, the bottom end of the installation column is fixedly connected with a threaded column, the inner bottom wall of the installation column is fixedly connected with two limiting rods, the two limiting rods are provided with a connecting column in a sliding mode, and the connecting column is fixedly connected with the threaded column. A threaded groove is formed in the upper surface of the connecting column, a threaded rod is connected into the threaded groove in a threaded and sleeved mode, a fixing disc is fixedly connected to the top end of the threaded rod, a threaded hole is formed in the surface of the mounting column, and a positioning bolt is connected into the threaded hole in a threaded and sleeved mode. According to the guitar button, strings can be quickly mounted and dismounted in the use process, and meanwhile, the heights of the connecting columns can be adjusted, so that the heights of the strings are consistent, and the guitar button is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of piano technology, specifically a piano knob. Background Technology

[0002] The lyre is one of the earliest plucked string instruments in the West. It is a seven-stringed harp that often requires tuning of the strings.

[0003] A Léa piano button, with publication number CN 216133655 U, is described. It includes a button body with a hexagonal inner hole on its left end face. A string fixing groove is formed at the left end of the button body, and a string mounting hole extends through the groove. A button post is integrally formed in the middle of the button body. A stud is integrally formed on the right side of the button post, and a second stud is integrally formed on the right side of the first stud. A washer is movably mounted on the outside of the second stud. A locking nut is threaded to the right end of the second stud. The washer is movably mounted on the button post. This utility model adopts a new structure, improving upon existing Léa piano buttons. It features a simple and reasonable structure, convenient installation, low manufacturing cost, and strong practicality.

[0004] However, the aforementioned tuning pegs still have some shortcomings in use. After multiple strings are installed and tuned, the different number of rotations of the tuning pegs result in different heights of the tuning pegs, which in turn leads to different string heights. In addition, when the strings need to be removed and replaced, the entire tuning peg needs to be removed frequently, which can easily cause the strings to strip. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a piano knob that solves the problem that when multiple strings are installed and tuned, the different number of rotations of the multiple knob posts result in different heights of the knob posts, leading to different string heights. Furthermore, when the strings need to be disassembled and replaced, the entire knob needs to be disassembled frequently, which can easily cause stripping.

[0006] This utility model provides the following technical solution: a piano button, including a mounting post, the interior of which is hollow, a threaded post fixedly connected to the bottom end of the mounting post, two limiting rods fixedly connected to the inner bottom wall of the mounting post, a connecting post slidably mounted on the two limiting rods, a threaded groove formed on the upper surface of the connecting post, a screw threadedly fitted inside the threaded groove, a fixing plate fixedly connected to the top end of the screw, and a threaded hole formed on the surface of the mounting post, a positioning bolt threadedly fitted inside the threaded hole.

[0007] Preferred technical solution 1: The surface of the fixed plate is provided with an installation groove, the surface of the fixed plate is provided with a placement groove, and a hook is fixedly connected inside the placement groove.

[0008] Preferred technical solution 2: A washer is slidably fitted on the surface of the threaded post, and a nut is threadedly fitted on the surface of the threaded post.

[0009] Preferred technical solution 3: Two limiting grooves are formed on the surface of the connecting column, and the two limiting grooves are symmetrically distributed on the surface of the connecting column. The connecting column is slidably sleeved on the two limiting rods through the two limiting grooves.

[0010] Preferred technical solution four: Grooves are provided on both sides of the connecting column, and the two grooves correspond to the two positioning bolts respectively. Rubber pads are adhered inside the two grooves.

[0011] Preferred technical solution five: The upper surface of the fixed plate is provided with a hexagonal groove, which is matched with an internal hexagonal wrench.

[0012] Compared with the prior art, this utility model provides a piano key with the following advantages: In use, the threaded post on the mounting post is installed on the piano body and fixed with washers and nuts. Then, the strings are hung on the hooks and placed in the placement and mounting slots. The fixing plate is then rotated to wind the strings onto the fixing plate, thus tightening the strings. When different strings are tightened, installed, and tuned, the number of rotations of the multiple fixing plates is different, resulting in different heights of the multiple fixing plates. At this time, by pulling the connecting post outward, the position of the connecting post and the fixing plate is adjusted so that the heights of the multiple fixing plates are aligned. Then, the positioning bolt is installed inside the threaded hole, and the positioning bolt is rotated to tighten and fix it against the connecting post, thereby completing the installation of the strings. When replacing, simply rotate the positioning bolt in the opposite direction to release the locking of the connecting post and the strings, and then it can be quickly disassembled without frequent disassembly of the mounting post, avoiding the possibility of stripping the threads between the threaded post and the piano body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the fixed disk structure of this utility model;

[0016] Figure 4 This is a cross-sectional view of the mounting column and connecting column structure of this utility model.

[0017] In the diagram: 1. Mounting post; 2. Threaded post; 3. Limiting rod; 4. Connecting post; 5. Threaded groove; 6. Screw; 7. Fixing plate; 8. Threaded hole; 9. Positioning bolt; 10. Mounting groove; 11. Placement groove; 12. Hook; 13. Washer; 14. Nut; 15. Limiting groove; 16. Groove; 17. Hexagonal groove. Detailed Implementation

[0018] Please see Figure 1-4 ,

[0019] Example 1: A piano button includes a mounting post 1, which is hollow inside. A threaded post 2 is fixedly connected to the bottom end of the mounting post 1. Two limiting rods 3 are fixedly connected to the bottom wall of the mounting post 1. A connecting post 4 is slidably mounted on the two limiting rods 3. A threaded groove 5 is opened on the upper surface of the connecting post 4. A screw 6 is threadedly sleeved inside the threaded groove 5. A fixing plate 7 is fixedly connected to the top end of the screw 6. A threaded hole 8 is opened on the surface of the mounting post 1. A positioning bolt 9 is threadedly sleeved inside the threaded hole 8.

[0020] Example 2: The difference between this example and Example 1 is that the surface of the fixed plate 7 is provided with an installation groove 10 and a placement groove 11. A hook 12 is fixedly connected inside the placement groove 11 to facilitate the installation and fixing of the strings.

[0021] Example 3: The difference between this example and Example 1 is that the surface of the threaded column 2 is slidably fitted with a washer 13, and the surface of the threaded column 2 is threaded with a nut 14, which facilitates the quick installation and fixing of the mounting column 1.

[0022] Example 4: The difference between this example and Example 1 is that the surface of the connecting column 4 has two limiting grooves 15, which are symmetrically distributed on the surface of the connecting column 4. The connecting column 4 is slidably sleeved on the two limiting rods 3 through the two limiting grooves 15, which facilitates the restriction of the movement of the connecting column 4 and prevents it from rotating arbitrarily.

[0023] Example 5: The difference between this example and Example 1 is that the connecting column 4 has grooves 16 on both sides, and the two grooves 16 correspond to the two positioning bolts 9 respectively. The interior of the two grooves 16 is glued with rubber pads to facilitate the clamping and fixing of the connecting column 4 by the positioning bolts 9.

[0024] Example 6: The difference between this example and Example 1 is that the upper surface of the fixed plate 7 is provided with a hexagonal groove 17, which matches the internal hexagonal wrench, making it convenient for the user to operate the tool.

[0025] In summary, when using this piano key, the threaded post 2 on the mounting post 1 is installed on the piano body and secured with washers 13 and nuts 14. Then, the strings are hung on hooks 12 and placed in the placement slots 11 and mounting slots 10. The fixing plate 7 is then rotated to wind the strings around it, thus tightening them. When different strings are tightened, installed, and tuned, the number of rotations of the multiple fixing plates 7 will differ, resulting in different heights. At this point, the connecting post 4 is pulled outward to adjust the position of the connecting post 4 and the fixing plate 7, making the multiple fixing plates 7 level. Then, the positioning bolt 9 is installed inside the threaded hole 8, and the positioning bolt 9 is rotated to tighten and secure it against the connecting post 4, thus completing the installation of the strings. When replacing, simply rotate the positioning bolt 9 in the opposite direction to release the locking of the connecting post 4 and the strings, allowing for quick disassembly without frequent disassembly of the mounting post 1, thus avoiding stripping of the threaded post 2 and the piano body.

Claims

1. A tuning peg comprising a mounting post (1) characterised in that: The interior of the mounting column (1) is hollow. A threaded column (2) is fixedly connected to the bottom end of the mounting column (1). Two limiting rods (3) are fixedly connected to the bottom wall of the mounting column (1). A connecting column (4) is slidably installed on the two limiting rods (3). A threaded groove (5) is opened on the upper surface of the connecting column (4). A screw (6) is threaded inside the threaded groove (5). A fixing plate (7) is fixedly connected to the top end of the screw (6). A threaded hole (8) is opened on the surface of the mounting column (1). A positioning bolt (9) is threaded inside the threaded hole (8).

2. A tailpiece according to claim 1, wherein: The surface of the fixed plate (7) is provided with an installation groove (10) and a placement groove (11). A hook (12) is fixedly connected inside the placement groove (11).

3. A piano button according to claim 2, characterized in that: A washer (13) is slidably fitted on the surface of the threaded post (2), and a nut (14) is threaded onto the surface of the threaded post (2).

4. A tailpiece as claimed in claim 3, wherein: The surface of the connecting column (4) has two limiting grooves (15), which are symmetrically distributed on the surface of the connecting column (4). The connecting column (4) is slidably sleeved on the two limiting rods (3) through the two limiting grooves (15).

5. A tailpiece as claimed in claim 4, wherein: The connecting column (4) has grooves (16) on both sides. The two grooves (16) correspond to the two positioning bolts (9) respectively. The interior of the two grooves (16) is glued with rubber pads.

6. A tailpiece according to claim 5, wherein: The upper surface of the fixed plate (7) is provided with a hexagonal groove (17), which is matched with an internal hexagonal wrench.

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