A string fixing device for easy adjustment of the guzheng

Abstract

This invention discloses an easily adjustable string fixing device for the guzheng (Chinese zither), relating to the field of guzheng technology. The invention includes a guzheng body, with second positioning blocks fixed at both ends of the top of the body. A string is slidably connected to the inner side of each second positioning block, with one end of the string fixed to the guzheng body. A second cavity is formed in the middle of the top of the guzheng body, with a first fixing plate fixed inside the top of the second cavity. The first positioning block is slidably connected inside the first fixing plate and slidably connected to the string. A limiting mechanism for positioning the first positioning block is installed inside the second cavity. Through the cooperation of the guzheng body, the limiting mechanism, and the translation mechanism, this invention can position the first positioning block that needs adjustment. When one or more first positioning blocks need to be replaced as needed, the operation of the limiting mechanism or the translation mechanism causes one or more locking posts to disengage from the first positioning block.

Description

Technical Field

[0001] This invention belongs to the field of guzheng technology, and in particular relates to a string fixing device for guzheng that is easy to adjust. Background Technology

[0002] The guzheng, a plucked string instrument, also known as the Han zheng or Qin zheng, is an ancient Chinese musical instrument popular throughout China. It is commonly used for solo performances, ensembles, instrumental ensembles, and accompaniment for songs, dances, operas, and folk arts. Due to its wide range, beautiful tone, rich playing techniques, and strong expressiveness, it is known as the "King of Instruments" and also as the "Oriental Piano." It is one of China's unique and important national musical instruments. To ensure the guzheng reaches the appropriate pitch, adjustments are needed, and support blocks are used to support the height and position of the strings. However, the existing support blocks are not easily replaceable based on usage. Summary of the Invention

[0003] The purpose of this invention is to provide an easily adjustable string fixing device for the guzheng, thereby solving the existing problem that the existing support fixing blocks are not convenient to replace according to the usage.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0005] This invention relates to an easily adjustable string fixing device for the guzheng (Chinese zither), comprising a guzheng body, with two second positioning blocks fixed at both ends of the top of the guzheng body, a string slidably connected to the inner side of the second positioning block, and one end of the string fixed to the guzheng body, a second cavity being formed in the middle of the top of the guzheng body, a first fixing plate being fixed inside the top of the second cavity, a first positioning block being slidably connected inside the first fixing plate, and the first positioning block being slidably connected to the string, and a limiting mechanism for positioning the first positioning block being installed inside the second cavity;

[0006] The limiting mechanism includes a displacement plate, a locking post, and a moving block. The displacement plate has an installation groove inside, and the position corresponding to the first positioning block is provided. The moving block is slidably connected inside the installation groove. One end of the moving block is fixed with a locking post, and the locking post is slidably connected to the first positioning block.

[0007] Furthermore, a first cavity is provided inside one end of the guzheng body, and a winding mechanism for adjusting the strings is installed inside the first cavity. A second fixing plate is assembled inside the top of the first cavity.

[0008] Furthermore, height positioning plates are fixed on both sides of the top of the first cavity, and the second fixing plate is transitionally fitted with the height positioning plates.

[0009] Furthermore, the winding mechanism includes a rotating shaft, a winding column, a winding drive motor, a transmission worm gear, and a transmission worm wheel. The rotating shaft is rotatably connected to the first cavity. A winding column is fixed to the outer side of one end of the rotating shaft, and the outer side of the winding column is fixed to the other end of the string. A winding drive motor is fixed inside the first cavity. The output end of the winding drive motor is connected to the transmission worm gear. A transmission worm wheel is meshed with one side of the transmission worm gear, and the transmission worm wheel is fixed to the rotating shaft.

[0010] Furthermore, the limiting mechanism includes a displacement drive motor, a first bevel gear, a second bevel gear, a rotating shaft, and a threaded section. The displacement drive motor is fixed inside the mounting groove. The output end of the displacement drive motor is connected to the first bevel gear. The second bevel gear is meshed with one side of the first bevel gear. The rotating shaft is fixed inside the second bevel gear and is rotatably connected to the mounting groove. A threaded section is provided on the outer side of the rotating shaft, and the outer side of the threaded section is threadedly connected to the moving block.

[0011] Furthermore, the second cavity is equipped with a translation mechanism for moving the displacement plate, and the translation mechanism is located at the bottom end of the displacement plate.

[0012] Furthermore, the translation mechanism includes a sliding plate, a displacement rack, a connecting shaft, a displacement gear, a translation drive motor, a first gear, and a second gear. The translation drive motor is fixed to the second cavity. The output end of the translation drive motor is connected to the first gear. The top of the first gear is fixed to the second gear. The connecting shaft is fixed inside the second gear. A displacement gear is fixed to the outside of the connecting shaft and at one end of the second gear. The top of the displacement gear is meshed with the displacement rack, and the top of the displacement rack is fixed to the displacement plate. Both ends of the connecting shaft are rotatably connected to sliding plates, and the sliding plates are fixed to the first cavity. Limiting plates are fixed to both sides of the bottom of the displacement plate, and the limiting plates are located between the two sliding plates.

[0013] Furthermore, rotating columns are evenly distributed and rotatably connected inside the top of the sliding plate.

[0014] The present invention has the following beneficial effects:

[0015] 1. This invention, through the cooperation of the guzheng body, the limiting mechanism, and the translation mechanism, can position the first positioning block that needs to be adjusted, and when one or more first positioning blocks are replaced as needed, the operation of the limiting mechanism or the translation mechanism can cause one or more locking pins to disengage from the first positioning block.

[0016] 2. This invention, through the cooperation of a rotating shaft, a winding column, a transmission worm gear, and a transmission worm wheel, can electrically drive the strings to straighten during use, thereby reducing the labor intensity of operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure where the second fixing plate of the present invention is detached;

[0020] Figure 3 This is a schematic diagram of the connection structure between the winding column and the first rotating shaft of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the guzheng body of the present invention;

[0022] Figure 5 This is a schematic diagram of the displacement plate of the present invention;

[0023] Figure 6 This is a bottom view of the displacement plate of the present invention;

[0024] Figure 7 This is a schematic diagram of the connection structure between the moving block and the locking pin of the present invention;

[0025] Figure 8 This is a schematic diagram of the displacement gear of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Guzheng body; 2. First fixing plate; 3. First positioning block; 4. Second positioning block; 5. Strings; 6. Second fixing plate; 7. Height positioning plate; 8. Rotating shaft; 9. Winding column; 10. Winding drive motor; 11. Transmission worm gear; 12. Transmission worm wheel; 13. Displacement plate; 14. Sliding plate; 15. Rotating column; 16. Displacement rack; 17. Limiting plate; 18. Connecting shaft; 19. Locking post; 20. Moving block; 21. Displacement drive motor; 22. First bevel gear; 23. Second bevel gear; 24. Rotating shaft; 25. Threaded section; 26. Displacement gear; 27. Translation drive motor; 28. First gear; 29. ​​Second gear. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-8 As shown, the present invention is a string fixing device for guzheng that is easy to adjust, including guzheng body 1, with second positioning blocks 4 fixed at both ends of the top of guzheng body 1, and strings 5 ​​slidably connected to the inner side of the second positioning blocks 4, with one end of the strings 5 ​​fixed to guzheng body 1, and the height of the strings 5 ​​being positioned by the second positioning blocks 4. A first cavity is opened inside one end of guzheng body 1, and a winding mechanism for adjusting the strings 5 ​​is installed inside the first cavity. A second fixing plate 6 is assembled inside the top of the first cavity, and height positioning plates 7 are fixed on both sides of the top of the first cavity. The second fixing plate 6 and the height positioning plate 7 are transitionally fitted, so that the second fixing plate 6 can be installed inside the top of the first cavity.

[0030] In this embodiment, the number of second positioning blocks 4 at the same end is the same as the number of strings 5, and the number of winding mechanisms is the same as the number of strings 5.

[0031] The winding mechanism includes a rotating shaft 8, a winding post 9, a winding drive motor 10, a transmission worm 11, and a transmission worm wheel 12. The rotating shaft 8 is rotatably connected to the first cavity, making the rotation of the rotating shaft 8 more stable. The winding post 9 is fixed to the outer side of one end of the rotating shaft 8, and the outer side of the winding post 9 is fixed to the other end of the string 5, so that the string 5 can be wound around the outer side of the winding post 9 by the rotation of the winding post 9. The winding drive motor 10 is fixed inside the first cavity. The output end of the winding drive motor 10 is connected to the transmission worm 11. The transmission worm wheel 12 is meshed with one side of the transmission worm 11, and the transmission worm wheel 12 is fixed to the rotating shaft 8, so that the rotation of the transmission worm 11 can drive the meshed transmission worm wheel 12 to rotate, and the transmission worm wheel 12 can drive the rotating shaft 8 to rotate.

[0032] When it is necessary to straighten the string 5, the winding drive motor 10 is energized to drive the transmission worm gear 11 to rotate. The rotation of the transmission worm gear 11 drives the meshing transmission worm wheel 12 to rotate. The rotation of the transmission worm wheel 12 drives the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the winding column 9 to rotate. The rotation of the winding column 9 drives the string 5 fixed on the outside to wind. At the same time, the position of the string 5 is positioned by the second positioning block 4. And by fixing one end of the string 5 to the guzheng body 1, the string 5 is gradually straightened when the winding column 9 winds the string 5.

[0033] The guzheng body 1 has a second cavity in the middle of the top, and the second cavity is located between two second positioning blocks 4. A first fixing plate 2 is fixed inside the top of the second cavity. A first positioning block 3 is slidably connected inside the first fixing plate 2, and the first positioning block 3 is slidably connected to the string 5. The string 5 can be positioned by the height of the first positioning block 3. Multiple first positioning blocks 3 are installed diagonally inside the first fixing plate 2, and the position of the first positioning block 3 corresponds to the position of the string 5, and the number is the same. A limiting mechanism for positioning the first positioning block 3 is installed inside the second cavity.

[0034] The limiting mechanism includes a displacement plate 13, a locking pin 19, a moving block 20, a displacement drive motor 21, a first bevel gear 22, a second bevel gear 23, a rotating shaft 24, and a threaded section 25. The displacement plate 13 has mounting grooves at positions corresponding to the first positioning block 3. The moving block 20 is slidably connected inside the mounting grooves, ensuring it does not disengage during sliding. One end of the moving block 20 is fixed to the locking pin 19. 19 is slidably connected to the first positioning block 3. A displacement drive motor 21 is fixed inside the mounting groove. The output end of the displacement drive motor 21 is connected to the first bevel gear 22. A second bevel gear 23 is meshed with one side of the first bevel gear 22. A rotating shaft 24 is fixed inside the second bevel gear 23. The rotating shaft 24 is rotatably connected to the mounting groove, so that the rotating shaft 24 can rotate more stably. A threaded section 25 is opened on the outer side of the rotating shaft 24. The outer side of the threaded section 25 is threadedly connected to the moving block 20, so that the first positioning block 3 can be positioned by moving the locking pin 19 to disengage from or enter the interior of the first positioning block 3.

[0035] When one of the first positioning blocks 3 enters the interior of the first fixed plate 2 through a sliding connection and its bottom enters the interior of the second cavity, the displacement drive motor 21 is energized to drive the first bevel gear 22 to rotate. The rotation of the first bevel gear 22 drives the meshing second bevel gear 23 to rotate. The rotation of the second bevel gear 23 drives the rotating shaft 24 to rotate. The rotating shaft 24 drives the threaded moving block 20 to move through the outer threaded section 25, so that the moving block 20 moves inside the mounting groove and drives the locking pin 19 to move. The movement of the locking pin 19 enters the sliding connection of the first positioning block 3 to position the first positioning block 3. At the same time, the first positioning block 3 can be replaced by disengaging the locking pin 19 from the first positioning block 3.

[0036] The second cavity is equipped with a translation mechanism for moving the displacement plate 13. The translation mechanism is located at the bottom of the displacement plate 13, so that the displacement plate 13 can be moved as a whole. The translation mechanism includes a sliding plate 14, a rotating column 15, a displacement rack 16, a connecting shaft 18, a displacement gear 26, a translation drive motor 27, a first gear 28 and a second gear 29. The translation drive motor 27 is fixed to the second cavity. The output end of the translation drive motor 27 is connected to the first gear 28. The top of the first gear 28 is fixed to the second gear 29. The connecting shaft 18 is fixed inside the second gear 29, so that the rotation of the second gear 29 can drive the connecting shaft 18 to rotate.

[0037] A displacement gear 26 is fixed to the outside of the connecting shaft 18 and at one end of the second gear 29. A displacement rack 16 is meshed with the top of the displacement gear 26, and the top of the displacement rack 16 is fixed to the displacement plate 13. The rotation of the displacement gear 26 drives the meshed displacement rack 16 to move. Both ends of the connecting shaft 18 are rotatably connected to sliding plates 14, and the sliding plates 14 are fixed to the first cavity. The position of the sliding plates 14 can support the position of the connecting shaft 18. Rotating columns 15 are evenly distributed inside the top of the sliding plates 14, making it easier for the displacement plate 13 to move on the top of the sliding plates 14. Limiting plates 17 are fixed on both sides of the bottom of the displacement plate 13, and the limiting plates 17 are located between the two sliding plates 14. The contact between the limiting plates 17 and the sliding plates 14 prevents the displacement plate 13 from shifting when it moves.

[0038] When multiple first positioning blocks 3 are adjusted, the displacement plate 13 as a whole needs to be moved. The translation drive motor 27 is energized to rotate the first gear 28. The rotation of the first gear 28 drives the meshing second gear 29 to rotate. The rotation of the second gear 29 drives the connecting shaft 18 to rotate. The connecting shaft 18 is limited by its rotational connection with the sliding plate 14. At the same time, the rotation of the connecting shaft 18 drives the displacement gear 26 to rotate. The rotation of the displacement gear 26 drives the meshing displacement rack 16 to move. The movement position of the displacement plate 13 is limited by the contact between the limiting plate 17 and the sliding plate 14, thereby driving the displacement plate 13 to move, so that all the locking pins 19 disengage from the corresponding first positioning blocks 3.

[0039] Preferably, a battery is also fixed inside the main body 1 of the guzheng. The battery is electrically connected to the winding drive motor 10, the displacement drive motor 21, and the translation drive motor 27 through wires, so as to provide power to the winding drive motor 10, the displacement drive motor 21, and the translation drive motor 27.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A string fixing device for a guzheng that is easy to adjust, comprising the guzheng body (1), characterized in that: The two ends of the top of the guzheng body (1) are fixed with second positioning blocks (4). The inner side of the second positioning block (4) is slidably connected with a string (5), and one end of the string (5) is fixed to the guzheng body (1). The middle of the top of the guzheng body (1) is provided with a second cavity. The top of the second cavity is fixed with a first fixing plate (2). The first fixing plate (2) is slidably connected with a first positioning block (3), and the first positioning block (3) is slidably connected with the string (5). The second cavity is equipped with a limiting mechanism for positioning the first positioning block (3). The limiting mechanism includes a displacement plate (13), a locking post (19), and a moving block (20). The displacement plate (13) has an installation groove inside and at a position corresponding to the first positioning block (3). The moving block (20) is slidably connected inside the installation groove. The locking post (19) is fixed at one end of the moving block (20), and the locking post (19) is slidably connected to the first positioning block (3).

2. The guzheng string fixing device for easy adjustment according to claim 1, characterized in that, The guzheng body (1) has a first cavity inside one end, and a winding mechanism for adjusting the strings (5) is installed inside the first cavity. A second fixing plate (6) is installed inside the top of the first cavity.

3. The guzheng string fixing device for easy adjustment according to claim 2, characterized in that, Height positioning plates (7) are fixed on both sides of the top of the first cavity, and the second fixing plate (6) is transitionally fitted with the height positioning plates (7).

4. The guzheng string fixing device for easy adjustment according to claim 2, characterized in that, The winding mechanism includes a rotating shaft (8), a winding column (9), a winding drive motor (10), a transmission worm (11), and a transmission worm wheel (12). The rotating shaft (8) is rotatably connected to the first cavity. The winding column (9) is fixed to the outer side of one end of the rotating shaft (8). The outer side of the winding column (9) is fixed to the other end of the string (5). The winding drive motor (10) is fixed inside the first cavity. The output end of the winding drive motor (10) is connected to the transmission worm (11). The transmission worm wheel (12) is meshed with one side of the transmission worm (11), and the transmission worm wheel (12) is fixed to the rotating shaft (8).

5. A string fixing device for the guzheng that is easy to adjust according to claim 1, characterized in that, The limiting mechanism includes a displacement drive motor (21), a first bevel gear (22), a second bevel gear (23), a rotating shaft (24), and a threaded section (25). The displacement drive motor (21) is fixed inside the mounting groove. The output end of the displacement drive motor (21) is connected to the first bevel gear (22). The second bevel gear (23) is meshed with one side of the first bevel gear (22). The rotating shaft (24) is fixed inside the second bevel gear (23), and the rotating shaft (24) is rotatably connected to the mounting groove. The outer side of the rotating shaft (24) is provided with a threaded section (25), and the outer side of the threaded section (25) is threadedly connected to the moving block (20).

6. The guzheng string fixing device for easy adjustment according to claim 1, characterized in that, The second cavity is equipped with a translation mechanism for moving the displacement plate (13), and the translation mechanism is located at the bottom end of the displacement plate (13).

7. A string fixing device for a guzheng that is easy to adjust according to claim 6, characterized in that, The translation mechanism includes a sliding plate (14), a displacement rack (16), a connecting shaft (18), a displacement gear (26), a translation drive motor (27), a first gear (28), and a second gear (29). The translation drive motor (27) is fixed to the second cavity. The output end of the translation drive motor (27) is connected to the first gear (28). The top of the first gear (28) is fixed to the second gear (29). The connecting shaft (18) is fixed inside the second gear (29). A displacement gear (26) is fixed to the outside of the second gear (29) and at one end of the second gear (29). A displacement rack (16) is meshed with the top of the displacement gear (26), and the top of the displacement rack (16) is fixed to the displacement plate (13). Both ends of the connecting shaft (18) are rotatably connected to sliding plates (14), and the sliding plates (14) are fixed to the first cavity. Limiting plates (17) are fixed on both sides of the bottom of the displacement plate (13), and the limiting plates (17) are located between the two sliding plates (14).

8. A string fixing device for a guzheng that is easy to adjust according to claim 7, characterized in that, Rotating columns (15) are evenly distributed and rotatably connected inside the top of the sliding plate (14).

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