Adjustable plugging type tuning gauge for guqin string distance

Abstract

The utility model discloses a movable plug -in type tuning gauge of qin string distance adjustment, and the tuning gauge is of arched structure, the back plane of the tuning gauge is slidably arranged on the upward protruding Yueshan vertical side wall of qin support, the bottom arc surface of the tuning gauge is arranged on the top arc surface of qin support, and the top of the tuning gauge is provided with a plurality of transversely protruding string fixing blocks, the plurality of string fixing blocks are transversely extended to above the string hole of qin support, and a string fixing hole for restricting the distance between qin strings is arranged between the plurality of string fixing blocks. The utility model discloses a tuning gauge string distance restriction and adjustment mode, without changing or damaging the original structure on qin, the utility model discloses a clever, simple and practical, low cost, install in qin small and secret, do not affect the appearance aesthetic feeling of qin, suitable for current existing style qin, suitable for all age groups of qin users, benefit general promotion, solve the thousand-year-old problem of qin lovers. The utility model discloses a qin with high use value.

Description

Technical Field

[0001] This utility model relates to the field of musical instrument technology, specifically to a movable plug-in tuning gauge for adjusting the string spacing of a guqin (a seven-stringed zither). Background Technology

[0002] The guqin, a traditional Chinese musical instrument with a 3000-year history, has traditionally controlled its string spacing (distance between the strings) through fixed string holes on a lacquer-receiving board. Adjusting the string spacing required replacing the lacquer-receiving board. Because this board was bonded to the instrument with natural lacquer, removing it would damage the lacquer base, and the lacquer drying process was complex (the lacquering process takes at least a month). Furthermore, string spacing adjustments had to be performed by a professional luthier replacing the lacquer-receiving board. This traditional structure has the following drawbacks: 1. Non-adjustable: The distance between the string holes is fixed during instrument making and cannot be adapted to changes in the size of the user's hand (such as growth from child to adult). 2. High cost and long cycle: Replacing the dew-collecting plate requires destructive disassembly, and the paint repair is time-consuming and labor-intensive; 3. Dependence on specialization: Users cannot operate it themselves and must rely on professional craftsmen.

[0003] Therefore, there is an urgent need for a solution that allows for instant adjustment of string spacing without altering the original instrument's structure. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to propose a movable plug-in tuning gauge for adjusting the string spacing of the guqin (a seven-stringed zither). Through the string spacing constraint adjustment method of this utility model's tuning gauge, the original structure of the guqin does not need to be changed or damaged. It is ingeniously designed, simple and practical, inexpensive, and compactly and discreetly installed on the guqin, without affecting its aesthetic appearance. It is suitable for current guqin models and users of all ages. It facilitates widespread adoption and solves a long-standing problem for guqin enthusiasts, thereby enhancing the practical value of the guqin.

[0005] To address the aforementioned issues, this invention provides a movable plug-in tuning gauge for adjusting the string spacing of a guqin (a seven-stringed zither). The tuning gauge has an arched structure, with its back surface sliding against the vertical side wall of the guqin's nut-shaped support. The bottom arc surface of the tuning gauge rests on the top arc surface of the nut-shaped support, and multiple horizontally protruding string-fixing blocks are spaced at the top of the tuning gauge. These string-fixing blocks extend horizontally above the string holes on the nut-shaped support, and string-fixing openings constrain the string spacing between the string-fixing blocks.

[0006] Preferably, the tuning gauge is a one-piece casting made of metal or plastic, or cut from wood. The bottom arc surface of the tuning gauge has multiple string-avoiding openings corresponding to the string hole positions, and the front of the tuning gauge has a one-piece string-guiding slope that supports the string-fixing block and laterally fits and constrains the strings of the guqin.

[0007] Preferably, the tuning compass is a split assembly structure, including an arc-shaped plate and multiple horizontally inserted and fixed string blocks on the upper part of the arc-shaped plate; the arc-shaped plate is a flat structure made of stainless steel or plastic, the top surface of the arc-shaped plate is made into an upper arc surface adapted to the curvature of the top of the guqin's bridge, and the bottom surface of the arc-shaped plate is made into a lower arc surface adapted to the curvature of the guqin's top surface; the two ends of the lower arc surface taper to the middle of the lower arc surface and have protrusions that extend downward to support the guqin's top arc surface.

[0008] Preferably, the top arc surface of the arc plate has multiple recessed fixing holes, and the upper part of the arc plate has multiple positioning holes for inserting and positioning fixing blocks.

[0009] Preferably, a plug is fixed to the back of the chord block, which is inserted into the positioning hole on the arc plate.

[0010] Preferably, the cross-sectional shape of the insert and the positioning hole is circular, rectangular or crescent-shaped.

[0011] The advantages of this utility model compared with the prior art are as follows: 1. Non-destructive adjustment: The chord adjustment gauge with an arched structure is inserted and removed between the bridge and the purlin, and the chord spacing is constrained by the chord fixing hole on the chord fixing block, completely avoiding damage to the dew-collecting plate.

[0012] 2. Instant Adaptability: Users only need to replace the tuning gauges with different string hole spacings to instantly adjust the string spacing to suit the hand size requirements of users of different ages, without waiting for the manufacturing process of modifying the instrument body.

[0013] 3. Universality and Concealment: The arched structure of the tuning pegs allows its bottom arc surface to adapt to the exposed top arc surface, and the top guide slope laterally constrains the strings, making it compatible with all guqin styles and visually concealed.

[0014] 4. Low cost and easy operation: Using metal / plastic castings or wooden structures, users only need to perform three steps: "selecting the gauge → inserting and unplugging → tightening the strings", eliminating the need for professional luthiers.

[0015] 5. Structural optimization ensures functionality: The plug-in connection between the split design and the positioning hole, as well as the avoidance design between the string opening and the string hole, ensures installation stability and undamaged acoustic transmission. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram showing the installation position of this utility model on a guqin; Figure 2 This is a frontal three-dimensional structural diagram of the present invention (Embodiment 1); Figure 3 This is a three-dimensional structural diagram of the back of the present invention (Embodiment 1); Figure 4 This is a cross-sectional structural diagram of the present invention (Embodiment 1); Figure 5 This is a frontal three-dimensional structural diagram of the present invention (Embodiment 2); Figure 6 This is a three-dimensional structural diagram of the back of the present invention (Embodiment 2); Figure 7 This is a cross-sectional structural diagram of the present invention (Embodiment 2); In the picture: 1-Guqin; 2-Strings; 3-Pitching rods; 4-Yueshan (bridge); 5-Tuning compass; 6-String holes; 7-Dewdrop receiver; 501-Fixed string block; 502-Back plane; 503-String avoidance opening; 504-Fixed string opening; 505-String guide slope; 506-Insertion block; 507-Positioning hole; 508-Protrusion. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Combination Figures 1-7This utility model discloses a movable plug-in tuning gauge for adjusting the string spacing of a guqin. The tuning gauge 5 has an arched structure. The back plane 502 of the tuning gauge slides against the vertical side wall of the bridge 4 protruding upward from the guqin 1. The bottom arc surface of the tuning gauge rests on the top arc surface of the guqin 1. The top of the tuning gauge is provided with multiple horizontally protruding string fixing blocks 501, which extend horizontally above the string holes 6 opened on the guqin 1. String fixing openings 504 are opened between the multiple string fixing blocks to constrain the spacing of the guqin strings 2.

[0021] Preferably, the tuning gauge is a one-piece casting made of metal or plastic, or cut from wood. The bottom arc surface of the tuning gauge has multiple string-avoiding openings 503 corresponding to the string hole positions, and the front of the tuning gauge has a one-piece string-guiding slope 505 that supports the string-fixing block and laterally fits and constrains the strings of the guqin.

[0022] Preferably, the tuning compass is a split assembly structure, including an arc-shaped plate and multiple horizontally inserted and fixed string blocks on the upper part of the arc-shaped plate; the arc-shaped plate is a flat plate structure made of stainless steel or plastic, the top surface of the arc-shaped plate is made into an upper arc surface adapted to the curvature of the top of the guqin's bridge, and the bottom surface of the arc-shaped plate is made into a lower arc surface adapted to the curvature of the guqin's top surface; the two ends of the lower arc surface taper to the middle of the lower arc surface and have protrusions 508 extending downward to support the guqin's top arc surface.

[0023] Preferably, the top arc surface of the arc plate is provided with multiple recessed fixing holes, and the upper part of the arc plate is provided with multiple positioning holes 507 for inserting and positioning fixing blocks.

[0024] Preferably, a plug 506 is fixed to the back of the fixed string block, which is inserted into the positioning hole in the arc plate.

[0025] Preferably, the cross-sectional shape of the insert and the positioning hole is circular, rectangular or crescent-shaped.

[0026] In addition, in the preferred embodiment of this utility model, because the lower part of both ends of the tuning gauge is bent towards the middle and has a downward protruding part, the height of both ends of the tuning gauge is relatively small, and the reserved height is insufficient to open a circular positioning hole. In order to reduce the processing difficulty and avoid the reduction of the structural strength of both ends of the tuning gauge, the positioning holes at both ends of the tuning gauge are opened as crescent-shaped, arc-shaped or strip-shaped structures.

[0027] To more clearly illustrate the specific embodiments of this utility model, several examples are provided below: Example 1: As Figure 2 , 3As shown in Figure 4, the tuning gauge is a one-piece metal / plastic casting support or made of wood cutting. Multiple string fixing blocks are made horizontally on the top of the tuning gauge, and string fixing holes are left between the multiple string fixing blocks. By processing tuning gauges of different specifications, string fixing hole positions and widths, the spacing of the peg ropes 3 stretched from the exposed string holes is constrained. The strings are tied and fixed to the existing peg ropes, thereby adjusting the spacing of the guqin strings without damaging or modifying the wooden structure of the guqin body.

[0028] Example 2: Figure 5 , 6 As shown in Figure 7, the tuning compass is a split-type structure. The back surface of the tuning compass is made of metal or plastic, while the string fixing blocks are made of plastic or carbon fiber. In use, string fixing blocks of different widths are inserted into the positioning holes to adjust the position and spacing of the string fixing openings. This constrains the spacing of the tuning pegs 3, which are stretched and extended from the string holes. The strings are then tied to the existing tuning pegs, thus adjusting the string spacing without damaging or altering the wooden structure of the guqin. (Note: If the string fixing blocks of the split-type tuning compass are glued and fixed to the tuning compass, making it impossible to insert and remove the string fixing blocks for replacement, then the entire tuning compass must be replaced with a tuning compass of different specifications and string fixing opening spacing and position to achieve the string spacing adjustment function.)

[0029] Finally, any aspects of this utility model not fully described herein utilize existing mature products and technologies.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A movable plug-in tuning gauge for adjusting the string spacing of a guqin (a seven-stringed zither), characterized in that: The tuning gauge has an arched structure. The back of the tuning gauge slides against the vertical side wall of the bridge that protrudes upward from the guqin's diaphragm. The bottom arc surface of the tuning gauge rests on the top arc surface of the guqin's diaphragm. The top of the tuning gauge is provided with multiple horizontally protruding string fixing blocks, and each of the string fixing blocks extends horizontally above the string holes opened on the guqin's diaphragm. String fixing openings that constrain the spacing between the strings of the guqin are opened between the multiple string fixing blocks.

2. The movable plug-in tuning gauge for adjusting the string spacing of a guqin according to claim 1, characterized in that: The tuning gauge is a one-piece casting made of metal or plastic, or cut from wood. The bottom arc surface of the tuning gauge has multiple string-avoiding openings corresponding to the string hole positions, and the front of the tuning gauge has a one-piece string-guiding slope that supports the string-fixing block and laterally fits and constrains the strings of the guqin.

3. The movable plug-in tuning gauge for adjusting the string spacing of a guqin according to claim 1, characterized in that: The tuning compass is a modular assembly structure, including an arc-shaped plate and multiple horizontally inserted and fixed string blocks on the upper part of the arc-shaped plate. The arc-shaped plate is a flat plate structure made of stainless steel or plastic. The top surface of the arc-shaped plate is made into an upper arc surface that matches the curvature of the top of the guqin's bridge, and the bottom surface of the arc-shaped plate is made into a lower arc surface that matches the curvature of the guqin's top surface. The two ends of the lower arc surface taper towards the middle of the lower arc surface and have protrusions that extend downward to support the guqin's top arc surface.

4. The movable plug-in tuning gauge for adjusting the string spacing of a guqin according to claim 3, characterized in that: The top arc surface of the arc plate has multiple recessed fixing holes, and the upper part of the arc plate has multiple positioning holes for inserting and positioning fixing blocks.

5. A movable plug-in tuning gauge for adjusting the string spacing of a guqin according to claim 4, characterized in that: The back of the fixed string block is fixed with an insert block, which is inserted into the positioning hole on the arc plate.

6. A movable plug-in tuning gauge for adjusting the string spacing of a guqin according to claim 5, characterized in that: The cross-sectional shape of the insert and the positioning hole is circular, rectangular or crescent-shaped.

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