Musical instrument structure of string copper column combined pronunciation conduction system, guqin structure, preparation method of guqin structure and guzheng structure

Abstract

A musical instrument structure of a string and copper column combined pronunciation conduction system, a Guqin structure and a preparation method thereof, and a Guqin structure comprise a device body, the device body is a hollow box body, the top of the device body is a panel 6, the bottom of the device body is a soundboard 7, the top of the panel 6 is fixedly provided with a plurality of strings 1, the panel 6 is provided with a first pronunciation hole 8, and the top of the soundboard 7 is fixedly connected with a column group bottom copper plate 4. The top of the column group bottom copper plate 4 is fixedly connected with the bottom ends of a plurality of columns 3, the columns 3 extend out of the sound amplification steel film 12, the top ends of the columns 3 are fixedly connected with column nozzles 2, the column nozzles 2 penetrate through first sound production holes 8 in the panel 6 to extend out of the device body, the column nozzles 2 abut against strings 1, the column nozzles 2 are fixedly connected with spring bridges 5, and the spring bridges 5 are fixedly connected with the panel 6.

Description

Technical Field

[0001] The invention relates to a sound amplifying device for a guqin vibration sound transmission system, and belongs to the field of musical instruments. In particular, it relates to a musical instrument structure of a string-copper-pillar combined sound transmission system, a guqin structure and a preparation method thereof, and a guzheng structure. Background Art

[0002] The commonly known guqin sound transmission system consists of the following components: the strings, the yueshan (mountain), the yin (gum), the top, the tiandi (pillars), and the bottom plate. The transmission process proceeds as follows: the sound energy from the strings' vibrations is transmitted through the yueshan (mountain) and yin to the top plate. The top plate then transmits the vibrational sound energy through the tiandi (pillars) within the trough to the bottom plate, causing the entire guqin to vibrate and resonate. Due to the long transmission path of the guqin's sound transmission system, the volume of music played on the guqin is low and the timbre is dull.

[0003] The energy transmission distance of vibration pronunciation is long, and the sound consumption is large; and the transmission distances of the left and right paths are long and short, which leads to inconsistent resonance intersection pace. Figure 10 Schematic diagram of the distance and timing difference of the sound transmission from the strings at point C of the guqin. When playing the guqin from any point C, the two left and right paths of sound energy transmission are as follows: 1. Point C → Yueshan → Panel → Tianzhu → Bottom Plate 2. Point C → Dragon Gum → Panel → Ground Column → Base Plate Paths 1 and 2 intersect and resonate at the intersection point D. As can be seen from the diagram, paths 1 and 2 are long, consuming more sound, and their lengths are different (i.e. the left path is short, the right path is long, and vice versa), resulting in inconsistent synchronization of the intersection and resonance, which leads to a dull resonance sound quality. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a musical instrument structure of a string-copper-pillar combined sound transmission system, a guqin structure and a preparation method thereof, and a guzheng structure.

[0005] The objective of the present invention is achieved in the following manner: a musical instrument structure with a string-copper-copper-column combined sound transmission system, comprising a body, the body being a box body with a hollow middle, the top of the body being a panel 6, the bottom of the body being a sound board 7, a plurality of strings 1 being fixed to the top of the panel 6, and characterized in that a first sound hole 8 is provided on the panel 6, the top of the sound board 7 is fixedly connected to the bottom copper plate 4 of the column group, the top of the bottom copper plate 4 of the column group is fixedly connected to the bottom ends of a plurality of column rods 3, the column rods 3 extend out of a sound-amplifying steel membrane 12, the top of the column rods 3 is fixedly connected to the column mouthpiece 2, the column mouthpiece 2 passes through the first sound hole 8 on the panel 6 and extends out of the body, the column mouthpiece 2 abuts against the strings 1, the column mouthpiece 2 is fixedly connected to the spring bridge 5, and the spring bridge 5 is fixedly connected to the panel 6.

[0006] A guqin structure including the above-mentioned musical instrument structure, wherein the instrument body is the body of the guqin, and a yueshan 10 and a dragon gum 11 are respectively fixed at both ends of the top of the panel 6 along the length direction, and both ends of the string 1 are respectively fixed on the yueshan 10 and the dragon gum 11, and a first sound hole 8 is provided on the panel 6 on the side of the yueshan 10; the top of the soundboard 7 is fixedly connected to the bottom copper plate 4 of the column group, and a number of column rods 3 are fixed in sequence on the bottom copper plate 4 of the column group, and the column mouth 2 at the top of each column rod 3 abuts against a string 1.

[0007] The width of the soundboard 7 is greater than the width of the panel 6. The soundboard 7 is connected to both sides of the panel 6 in the width direction by an inclined side panel 15. The panel 6 forms an arched structure with a high middle and low sides along the width direction. The first sound hole 8 is a strip hole arranged along the width direction of the panel 6.

[0008] A second sounding hole 9 is provided on the panel 6 on the side of the dragon gum 11 , and the second sounding hole 9 is a strip hole provided along the width direction of the panel 6 .

[0009] The length of the piano body is 1400mm~1450mm, the height of the piano body is 80mm~120mm, the width of the soundboard 7 is 250mm~350mm, and the width of the panel 6 is 210mm~220mm.

[0010] The column rod 3 extends out of the sound-amplifying steel membrane 12 in the piano body.

[0011] The spring bridge 5 includes a cylindrical main structure, which is sleeved on the outside of the column mouth 2. One end of a spring sheet is fixed on both sides of the cylindrical structure, and the other end of the spring sheet spans the first sound hole 8 and abuts the panel 6.

[0012] There are seven strings 1, seven spring bridges 5, seven post mouthpieces 2, seven post rods 3, and seven sound-amplifying steel membranes 12, forming seven sets of conductive structures. in: Seven strings 1, length of string 1 is 1340mm~1470mm; Seven pegs 2, each with a 6mm diameter body and a hemisphere protruding from the top with the same diameter as the body. The apex of the hemisphere is a semi-groove hole in the same direction as the string 1, and the diameter of the semi-groove hole is 2mm. The pegs are of equal height in order: the first and seventh pegs 2 are 37mm in height; the second and sixth pegs 2 are 52mm in height; the third and fifth pegs 2 are 65mm in height; and the fourth peg 2 is 75mm in height. Seven poles 3, each pole 3 is 100mm high, the pole top is a circle with a diameter of 6mm, the pole foot is an ellipse with a major axis of 30mm and a minor axis of 20mm, the poles 3 are arranged in a line in the direction of the minor axis, and are fixed in the middle of the copper plate 4 at the bottom of the pole group. The pole body of the pole 3 is an arc-shaped variable diameter structure from the top to the bottom end; The bottom copper plate 4 of the column group is one, 160mm long, 50mm wide and 3mm thick; Seven spring bridges 5, each having a cylindrical main structure of 6 mm in diameter, 5 mm in height, and 2 mm in thickness; and a spring leaf of 30 mm in length, 10 mm in width, and 2 mm in thickness; Seven sound amplifying steel membranes 12, each 200mm long, 70mm wide on both sides, 80mm wide in the middle, and 0.5mm thick. There is an isolated hole in the middle of the sound amplifying steel membrane 12, a 6mm circular hole on the top surface, and an elliptical hole with a major axis of 30mm and a minor axis of 20mm on the bottom surface. The major axis of the internal shape of the hole is aligned with the membrane surface, and the minor axis is perpendicular to the membrane surface. The overall shape matches the external shape of the column 3; The combination of seven column mouths 2, seven column rods 3, and a column group bottom copper plate 4 is a whole, and the material is bronze; Seven post mouthpieces 2, seven spring bridges 5, seven post rods 3, seven sound-amplifying steel membranes 12, and a copper plate 4 at the bottom of the post group together constitute the string-copper post combination system that transmits the sound of the guqin.

[0013] The method for preparing the above-mentioned guqin structure comprises the following steps: S1. Prepare a soundboard 7 with a length of 1400mm-1450mm and a width of 250mm-350mm. Prepare a panel 6 with the same length as the soundboard 7 and a width of 210mm-220mm. Prepare the panel 6 to form an arched structure with a high center and low sides along the width direction. Prepare to connect the soundboard 7 and the panel 6 to form the four side panels of the box body. S2. Install the yueshan 10 and the dragon gum 11 for fixing the end of the string 1 on the panel; S3. A first sound hole 8 is opened on the panel 6 between the ridge 10 and the gingiva 11, at a distance of 200±50 mm from the ridge 10, parallel to the ridge 10. The first sound hole 8 is 170±20 mm long and 10±2 mm wide. S4. A second sound hole 9 is opened on the panel 6 between the ridge 10 and the gingiva 11 at a distance of 150±30 mm from the gingiva 11 and parallel to the gingiva 11. The second sound hole 9 is 150±20 mm long and 6±1 mm wide. S5. Prepare seven strings 1, with a length of 1340 mm to 1470 mm. Prepare seven studs 2, each with a 6mm diameter body and a hemisphere protruding from the top with the same diameter as the body. The apex of the hemisphere is a semi-groove hole in the same direction as the string 1, and the diameter of the semi-groove hole is 2mm. The studs are of equal height in order: the first and seventh studs 2 are 37mm in height; the second and sixth studs 2 are 52mm in height; the third and fifth studs 2 are 65mm in height; and the fourth stud 2 is 75mm in height. Prepare seven poles 3, each pole 3 is 100mm high, the pole top is a circle with a diameter of 6mm, the pole foot is an ellipse with a major axis of 30mm and a minor axis of 20mm, the poles 3 are arranged in a line along the minor axis direction, and the pole body of the pole 3 is an arc-shaped variable diameter structure from the top to the bottom end; Prepare a column bottom copper plate 4, 160 mm long, 50 mm wide, and 3 mm thick; Prepare seven spring bridges 5, the cylindrical main structure of the spring bridge 5 has a diameter of 6mm, a height of 5mm, and a thickness of 2mm; the spring piece of the spring bridge 5 has a length of 30mm, a width of 10mm, and a thickness of 2mm; Seven sound-amplifying steel membranes 12 are 200mm long, 70mm wide on both sides, 80mm wide in the middle, and 0.5mm thick. There is a solitary hole in the middle of the sound-amplifying steel membrane 12, a 6mm circular hole on the top surface, and an elliptical hole with a major axis of 30mm and a minor axis of 20mm on the bottom surface. The internal shape of the hole has the major axis aligned with the membrane surface and the minor axis perpendicular to the membrane surface. The overall shape matches the external shape of the column rod 3. After the seven sound-amplifying steel membranes 12 are installed on the seven column rods 3, their directions are completely consistent with the direction of the strings 1; S6, fix seven column mouths 2, seven column rods 3 and a column group bottom copper plate 4 into one body, and carve a semicircular groove hole at the top of the column mouth 2 along the installation direction of the strings 1; S7, fix the bottom of the column group bottom copper plate 4 to the upper plane of the soundboard 7, and make the seven column mouths 2 correspond to the first sound holes 8, install the sound amplification steel membrane 12, fix the sound amplification steel membrane 12 to the column rod 3, and sleeve the spring bridge 5 on the column mouths 2; S8. Connect and fix the soundboard 7, the panel 6 and the four side panels, place the spring sheet of the spring bridge 5 against the panel 6, install the string 1, tie and fix one end of the string 1 on the nut 10, buckle the string 1 into the semicircular groove hole at the top of the column mouth 2, tie and fix the other end of the string 1 on the dragon gum 11, tighten and tune it.

[0014] A guzheng structure including an upper musical instrument structure, wherein the instrument body is the guzheng body, a yueshan 10 and a dragon gum 11 are fixed to the two ends of the top of the panel 6 along the length direction, and the two ends of the string 1 are fixed to the yueshan 10 and the dragon gum 11 respectively; The panel 6 is 1830 mm long and has a large end and a small end along its length, with the width decreasing from the large end to the small end. The large end is 330-350 mm wide and the small end is 280-290 mm wide. A first sound hole 8 and a second sound hole 9 are respectively provided in the upper ridge 10 and the dragon gum 11 of the panel 6. The first sound hole 8 is 250±20 mm long and 10±2 mm wide, and the second sound hole 9 is 150±20 mm long and 6±1 mm wide. The soundboard 7 is 1830 mm long, with a large end and a small end at both ends along the length direction of the soundboard 7, and a variable diameter structure with a decreasing width from the large end to the small end. The large end is 430-450 mm wide and the small end is 380-390 mm wide. The side panels between the top panel 6 and the soundboard 7 are 110 mm high; There are 21 strings 1, spring bridges 5, mouthpieces 2, poles 3, and sound-amplifying diaphragms 12, forming 21 conductive structures. in: Strings 1, each string 1 is 1830 mm long; The pegs 2 are cylindrical, 6 mm in diameter, and have a raised hemisphere on the top with the same diameter as the cylinder. The vertex of the hemisphere is a semi-groove hole in the same direction as the string 1, and the diameter of the semi-groove hole is 2 mm. The twenty-one pegs 2 are arranged in order, and their heights are equal in pairs: the first and twenty-first pegs 2 are 37 mm in height, the second and twentieth pegs 2 are 41 mm in height, the third and nineteenth pegs 2 are 45 mm in height, the fourth and eighteenth pegs 2 are 49 mm in height, the fifth and seventeenth pegs 2 are 53 mm in height, the sixth and sixteenth pegs 2 are 57 mm in height, the seventh and fifteenth pegs 2 are 61 mm in height, the eighth and fourteenth pegs 2 are 65 mm in height, the ninth and thirteenth pegs 2 are 69 mm in height, the tenth and twelfth pegs 2 are 73 mm in height, and the eleventh peg 2 is 75 mm high. The poles 3 are each 100 mm high, with a top having a 6 mm diameter circular shape, a base having a 11 mm diameter circular shape, and a body tapered from top to bottom; The sound-amplifying steel diaphragm 12 is 200 mm long, 0.5 mm thick, 70 mm wide on both sides and 80 mm wide in the middle, and is slung with the top facing downward. There is a conical hole in the middle of the sound-amplifying steel diaphragm, with an upper hole diameter of 6 mm and a lower hole diameter of 11 mm. The middle part is tapered to the bottom and is engaged with the outer sleeve of the pole 3; The bottom copper plate 4 of the column group is 250 mm long, 30 mm wide and 3 mm thick; The guzheng comprises twenty-one post mouthpieces 2, twenty-one post rods 3, twenty-one spring bridges 5, and a copper plate 4 at the bottom of the post group, which form a whole and are made of resonant copper. The guzheng's twenty-one post mouthpieces 2, twenty-one post rods 3, twenty-one spring bridges 5, twenty-one sound-amplifying steel membranes 12, and a copper plate 4 at the bottom of the post group together constitute the string-copper post combination system that transmits the guzheng's sound.

[0015] Compared with the prior art, the strings of the present invention are connected to the panel and the soundboard at the same time through the poles, so that the vibration is quickly transmitted over a short distance, so that the panel and the soundboard resonate more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the guqin from above according to the present invention.

[0017] Figure 2 yes Figure 1 Longitudinal section AA view of the first embodiment.

[0018] Figure 3 yes Figure 1 Longitudinal section BB view.

[0019] Figure 4 It is a schematic diagram of the structure of the sound transmission system for the string-copper-copper-column combination amplification, which is the second embodiment.

[0020] Figure 5 This is a schematic diagram of the spring bridge.

[0021] Figure 6 This is a schematic diagram of the seven column tips.

[0022] Figure 7 It is a schematic diagram of the column.

[0023] Figure 8 It is a schematic diagram of the copper plate at the bottom of the column group.

[0024] Figure 9 It is a schematic diagram of the sound amplification steel membrane and its internal structure.

[0025] Figure 10 This is a schematic diagram of the original guqin's C-point sound transmission distance and rhythmic resonance differences.

[0026] In the figure, 1, strings; 2, post mouthpiece; 3, post rod; 4, bottom copper plate of post group; 5, spring bridge; 6, soundboard; 7, soundboard; 8, first sound hole; 9, second sound hole; 10, Yueshan; 11, dragon gum; 12, amplified steel membrane; 13, sky column; 14, ground column; 15 side panel. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the present invention, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] As attached Figure 1-9 As shown, a musical instrument structure with a string-copper-copper-pillar combined sound transmission system includes an instrument body, which is a box body with a hollow middle, a panel 6 on the top of the instrument body, a soundboard 7 on the bottom of the instrument body, a plurality of strings 1 fixed on the top of the panel 6, a first sound hole 8 provided on the panel 6, the top of the soundboard 7 fixedly connected to the bottom copper plate 4 of the column group, the top of the bottom copper plate 4 of the column group fixedly connected to the bottom ends of a plurality of column rods 3, the column rods 3 extend out of the sound amplifying steel membrane 12, the top of the column rods 3 fixedly connected to the column mouthpiece 2, the column mouthpiece 2 passes through the first sound hole 8 on the panel 6 and extends out of the instrument body, the column mouthpiece 2 abuts the strings 1, the column mouthpiece 2 is fixedly connected to the spring bridge 5, and the spring bridge 5 is fixedly connected to the panel 6.

[0030] The string-copper-pillar combined sound transmission system is suitable for stringed instruments, especially the guqin and guzheng mentioned later.

[0031] Here we take the guqin as the preferred option and describe it in detail: A guqin structure including the above-mentioned musical instrument structure, wherein the instrument body is the guqin body, and a yueshan 10 and a longyin 11 are fixed at both ends of the top of the panel 6 along the length direction respectively. The two words yueshan 10 and longyin 11 are the scientific names of the original structures in the guqin structure. The names are retained in this application, and the structure is specifically manifested as a strip structure fixed on the panel 6, and the strip structure is provided with a column or hole for binding the strings 1; the two ends of the string 1 are respectively fixed on the yueshan 10 and the longyin 11, and a first sound hole 8 is provided on the panel 6 on the side of the yueshan 10; the top of the soundboard 7 is fixedly connected to the bottom copper plate 4 of the column group, and a number of column rods 3 are fixed in sequence on the bottom copper plate 4 of the column group, and the column mouth 2 at the top of each column rod 3 extends out of the guqin body from the first sound hole 8 and respectively abuts against a string 1.

[0032] Furthermore, the width of the soundboard 7 is greater than the width of the panel 6, and the soundboard 7 is connected to both sides of the panel 6 in the width direction through an inclined side panel 15. The panel 6 forms an arched structure with a high middle and low sides along the width direction, and the first sound hole 8 is a strip hole arranged along the width direction of the panel 6.

[0033] Furthermore, the length of the piano body is 1400mm~1450mm, the height of the piano body is 80mm~120mm, the width of the soundboard 7 is 250mm~350mm, and the width of the panel 6 is 210mm~220mm.

[0034] Furthermore, a second sound hole 9 is provided on the panel 6 on the side of the dragon gum 11 , and the second sound hole 9 is a strip hole provided along the width direction of the panel 6 .

[0035] Compared with the traditional guqin, the body of the guqin needs to be modified. The first step is to disconnect the guqin from the Yueshan 10, and move the Yueshan 10 and the headstock outward to lengthen the body by 200 mm, so that the length of the guqin changes from the standard 1200-1250 mm to 1400-1450 mm. The relative position of the Yueshan 10 and the headstock remains unchanged; the width of the guqin's top panel 6 remains unchanged at about 200 mm, and the bottom panel is widened by 100 mm, from the standard width of about 200 mm to about 300 mm; the side panels are raised by 40 mm, from the standard height of about 60 mm to about 100 mm, so that the guqin appears narrow at the top (about 200 mm) and wide at the bottom (about 300 mm), and the cross-section of the body is a parabola opening downwards, from Figure 4 In the structural diagram of the sound transmission system for the sound amplification of the string-copper-column combination, it can be seen that the cross-sectional view of the longitudinal section of the qin body is a parabolic structure. In addition, the heaven and earth pillars 13, 14, dragon pool and phoenix marsh structures of the original guqin are removed. The purpose and effect of the transformation in this step is to open and add the space of the present invention at the position of the original Yueshan 10, and widen the bottom plate to increase the area of the soundboard 7 to achieve amplified pronunciation; let the guqin resonance box be parabolic, so that the pronunciation of the soundboard 7 can spread upward. In addition, keeping the shape of the guqin panel 6 unchanged is to maintain the traditional playing technique of the guqin musical instrument, that is, to keep the thirteen wei unchanged. The second step is to dig a first sound hole 8 for resonant pronunciation on the panel 6 at the original Yueshan 10 according to the direction of Yueshan 10. The preferred slot is 170 mm long and 10 mm wide, and the inner wall of the hole is semicircular, and the diameter of the semicircle is equal to the thickness of the panel curved surface. At the same time, a second sound hole 9 is cut symmetrically and parallel to the gingiva 11 at the end of the guitar, preferably 150 mm away from the gingiva. The slot is preferably 150 mm long and 6 mm wide, with the inner wall of the hole being semicircular, with the diameter of the semicircle equal to the thickness of the curved surface of the guitar panel. The purpose of this modification step is to cut out the first sound hole 8, firstly to allow the seven column mouths 2 of the string copper column assembly to partially expose the guitar panel, forming a system structure with the strings 1; secondly, to provide sound for the resonance box, which has the same purpose as the second sound hole 9 cut out at the end of the guitar.

[0036] Furthermore, a sound-amplifying steel membrane 12 extends from the column 3 inside the piano body. The sound-amplifying steel membrane 12 can be welded and fixed to the side of the column 3, preferably as shown in the figure, including a cylindrical structure that can be sleeved on the outside of the column 3, and the cylindrical structure extends the column 3 to both sides.

[0037] Further, as attached Figure 5 As shown, the spring bridge 5 includes a cylindrical main structure, which is sleeved on the outside of the column mouth 2. One end of a spring sheet is fixed on the left and right sides of the cylindrical structure respectively, and the other end of the spring sheet spans the first sound hole 8 and abuts the panel 6.

[0038] For the guqin, there are seven strings 1, seven spring bridges 5, seven post mouthpieces 2, seven post rods 3, and seven sound-amplifying steel membranes 12, forming seven sets of conduction structures.

[0039] For the guqin, the strings 1 are preferably lengthened by 220 mm, from the standard 1120-1250 mm to 1340-1470 mm, to accommodate the increased length of the instrument. The soundboard 6, while retaining the standard width and thickness, is lengthened by 200 mm to 1400-1450 mm, with the first and second sound holes 8 and 9 cut out. The soundboard is 1400-1450 mm long, 300 mm wide, and 10 mm thick.

[0040] Preferably, there are seven column nozzles 2, and each column nozzle 2 is connected to a column rod 3 at the top of the column rod 3. The column nozzle 2 is a cylinder with a diameter of 6±1 mm. The heights of the seven column nozzles are equal in two to two order, that is, the first and seventh column nozzles are equal, 37 mm; the second and sixth column nozzles are equal, 52 mm; the third and fifth column nozzles are equal, 65 mm; the fourth column nozzle is single, 75 mm. The top of each column nozzle 2 is hemispherical, and the diameter of the hemisphere is preferably 6 mm. At the hemispherical apex of the column nozzle 2, a semicircular groove hole is dug in the same direction as the string 1; the hole diameter is preferably 2 mm, for the string 1 to be buckled into the semicircular groove hole and pass through. After the seven column nozzles are arranged, as shown Figure 6 Schematic diagram of seven column nozzles 2.

[0041] The function of the post mouth 2 is to support the string 1 to pass through and transmit the vibration of the string 1 to produce sound.

[0042] Preferably, there are seven poles 3, each pole 3 is 100 mm high, the pole top is a circle with a diameter of 6 mm, connected to the bottom of the pole mouth 2; the pole foot is an ellipse with a long axis of 30 mm and a short axis of 20 mm, and the pole body is a solitary pole from top to bottom. Figure 7 Schematic diagram of the column.

[0043] Preferably, the function of the column rod 3 is to fix the column mouth 2 at the top, connect the bottom copper plate 4 of the column group at the bottom, and indirectly amplify the sound-amplifying steel membrane 12 in the middle to conduct vibration and sound.

[0044] Preferably, the bottom copper plate 4 of the column group is 160 mm long, 50 mm wide, 3 mm thick, with rounded corners, seven tone teeth on the front, each tooth is 10 mm long and 20 mm wide, one tooth corresponds to the bottom of a column, which is conducive to sound amplification. Figure 8 Schematic diagram of the copper plate at the bottom of the column group.

[0045] The function of the bottom copper plate 4 of the column group is to fix the seven column rods 3 groups and transmit the vibration sound to the sound board 7, playing the role of the spring bridge 5.

[0046] Preferably, the spring saddle 5 is composed of a hoop and a foot. The hoop is made of flexible spring steel and has expansion properties; the hoop has a diameter of 6 mm, a height of 5 mm, and a thickness of 3 mm. The foot is an elastic spring steel sheet, 30 mm long, 10 mm wide, and 2 mm thick. Figure 5 Schematic diagram of spring bridge 5.

[0047] Preferably, the sound-amplifying steel membrane 12 is 200 mm long, 70 mm wide on the left and right sides, and 80 mm wide in the middle. It is in the shape of a diagonal shoulder on both sides and has a thickness of 0.5 mm. There is a solitary hole in the middle of the sound-amplifying steel membrane 12. The internal shape of the hole can be fitted with the external shape of the column body. The top surface is a 6 mm circular hole, and the bottom surface is an elliptical hole with a long axis of 30 mm and a short axis of 20 mm. The long axis is parallel to the surface of the sound-amplifying steel membrane and the short axis is perpendicular to the surface of the sound-amplifying steel membrane, so that it can be straightened and firmly fastened to the column 3. Since the internal shape of the hole of the sound-amplifying steel membrane 12 is exactly the same as the external shape of the column 3, the sound-amplifying steel membrane can be firmly fastened to the column body at a position 1 mm from the bottom, which is beneficial for the left and right steel membranes to enter the bottom without crowding each other. Figure 9 Schematic diagram of the sound amplification steel membrane and its internal structure.

[0048] As described above, the combination of the seven column nozzles 2, the seven column rods 3 and the column group bottom copper plate 4 is a whole, and the material is copper. They can be made separately and welded and fixed, or they can be made as a whole in one piece.

[0049] A method for preparing the above-mentioned guqin musical instrument structure with a string-copper-pillar combined sound transmission system comprises the following steps: S1. Prepare a soundboard 7 with a length of 1400mm-1450mm and a width of 250mm-350mm. Prepare a panel 6 with a length equal to that of the soundboard 7 and a width smaller than that of the soundboard 7, which is 210mm-220mm wide. Prepare a panel 6 with a width that is high in the middle and low on both sides, and connect the soundboard 7 and the panel 6 to form the four side panels of the box body. S2. Install the yueshan 10 and the dragon gum 11 for fixing the end of the string 1 on the panel; S3. A first sound hole 8 is opened on the panel 6 between the ridge 10 and the gingiva 11, at a distance of 200±50 mm from the ridge 10, parallel to the ridge 10. The first sound hole 8 is 170±20 mm long and 10±2 mm wide. S4. A second sound hole 9 is opened on the panel 6 between the ridge 10 and the gingiva 11 at a distance of 150±30 mm from the gingiva 11 and parallel to the gingiva 11. The second sound hole 9 is 150±20 mm long and 6±1 mm wide. S5. Prepare seven strings 1, with a length of 1340 mm to 1470 mm, seven post mouthpieces 2, seven post rods 3, and a post assembly bottom copper plate 4, seven spring bridges 5, and seven sound-amplifying steel membranes 12; S6, fix seven column mouths 2, seven column rods 3 and a column group bottom copper plate 4 into one, and carve a semicircular groove hole at the top of the column mouth 2 along the installation direction of the strings 1, with a hole diameter preferably of 2mm; S7. Glue or screw the bottom of the column group bottom copper plate 4 to the upper plane of the soundboard 7, and position the seven column mouthpieces 2 to correspond to the first sound hole 8, and preferably to the center of the first sound hole 8. Install the sound-amplifying steel membrane 12, fix the sound-amplifying steel membrane 12 to the column rod 3, and take the seven sound-amplifying steel membranes 12 and insert them downward onto the column rod 3 one by one to ensure a tight fit. Attach the spring bridge 5 to the column mouthpiece 2, and install the seven spring bridges 5 one by one into the column below the semicircular groove hole of the column mouthpiece 2; S8. Connect and fix the soundboard 7, the panel 6 and the four side panels, and fix the spring sheet of the spring bridge 5 to the panel 6. The hoop of the spring bridge 5 is a flexible spring ring with expandability, which can ensure that the hoop of the spring bridge 5 is tightly fitted on the column body of the column mouth 2. When the foot of the spring bridge 5 extends across the first sound hole 8 and maintains close contact with the panel 6, the installation is completed. Install the string 1, tie and fix one end of the string 1 on the yueshan 10, buckle the string 1 into the semicircular groove hole at the top of the column mouth 2, and tie and fix the other end of the string 1 on the dragon gum 11. Tighten it and tune it.

[0050] The function of the string copper column combination is to quickly and amplify the vibration energy of the string 1 directly to the panel 6, soundboard 7 and sound amplifying steel membrane 12, which is similar to the function of the piano bridge.

[0051] The principle on which the technical solution of the present invention is based is: This is similar to the principle of piano sound amplification. The principle is as follows: when a player presses a key, the hammers in the action are driven by force to strike the strings, triggering the strings to vibrate and generate sound waves. The spring bridge transmits these vibrations to the soundboard, where the wooden soundboard amplifies the sound wave energy and radiates it into the air, creating the piano's characteristically resonant sound. The core sound amplification process is: sound from string vibration, then to the spring bridge, then to the soundboard.

[0052] Similarly, the string-copper-pillar combination sound transmission system of the present invention: the string vibration sound → transmission string-copper-pillar combination → transmission sound board, thus forming a piano-like sound amplification effect. In this way, the string-copper-pillar combination is equivalent to a complex piano spring bridge.

[0053] The guqin of the present invention achieves a sound effect by quickly transmitting sound energy through the spring bridge 5 and the string brass rods to the soundboard 6, the soundboard 7 and the sound-amplifying steel diaphragm 12, thereby quickly achieving a sound volume synthesis resonance in the guqin resonance box. This completely overcomes the problems of the original guqin, such as the long sound transmission distance and the poor resonance due to different distances.

[0054] The sound transmission system technology of the copper string column sound amplification of the present invention is applicable to the guzheng. The applications are as follows: Following the same guqin body modification method, the guzheng body was lengthened by 200mm, the baseboard widened by 100mm, and the side panels raised by 40mm. Following the guqin's modification method, the spring bridge was removed, and the guzheng's 21 strings were fitted with a guzheng-style copper peg assembly and amplified sound transmission system. This system consists of 21 pegs, 21 peg rods, 21 amplified steel diaphragms, an extended copper base plate, and a soundboard.

[0055] In detail, the technical solution of the present invention applicable to Guzheng is: (1) Modify the body of the guzheng: move the front yueshan outward as a whole and lengthen it by 200 mm, from the standard 1630 mm to 1830 mm; widen the guzheng bottom plate by 100 mm, from the standard width of 330-350 mm at the big end and 280-290 mm at the small end to 430-450 mm at the big end and 380-390 mm at the small end; raise the side panels of the guzheng by 40 mm, from the standard 70 mm to 110 mm; except for the guzheng top plate being lengthened by 200 mm to 1830 mm, its width and thickness remain unchanged; (2) Install the string copper pillar combination system. The Guzheng string copper pillar combination system and the Guqin string copper pillar combination system have exactly the same single conduction structure combination. The Guzheng string copper pillar combination system includes: 21 strings 1, a string copper pillar combination, a panel 6, and a soundboard 7; there are 21 strings 1 in total, each of which is lengthened by 200 mm along with the body of the instrument, from the standard 1630 mm to 1830 mm. The installation method of each Guzheng string 1 is the same as that of the Guqin string 1; except that the length of the panel 6 is lengthened by 200 mm to 1830 mm along with the instrument, the width and thickness of the panel 6 of the standard Guzheng remain unchanged. The first and second sound holes on the panel 6 are both excavated according to the method of the Guqin, with only the first sound hole lengthened to 250 mm. The installation method of the Guzheng panel 6 is the same as that of the Guqin panel 6; the soundboard (bottom plate) 7, the length is lengthened to 1830 mm along with the body of the instrument, the width is as mentioned above, the large end width is 430-450 mm, the small end width is 380-390 mm, and the thickness is 10 mm The installation method of the guzheng soundboard 7 is the same as that of the guqin soundboard 7; the string copper column assembly includes: 21 column mouths 2, 21 column rods 3, 21 sound amplifying steel membranes 12, 21 spring bridges 5, and a column group bottom copper plate 4; the column mouth 2, the column mouth 2 cylindrical diameter is 6 mm, the top protrusion is a hemisphere with the same diameter as the column, the vertex of the hemisphere is a semi-groove hole in the same direction as the strings, the hole diameter is 2 mm, and the height of the column mouths 2 is equal to each other as follows: the column mouths <1, 21> are arranged in order of equal height The height of the column nozzles <2 and 20> is 41 mm, the height of the column nozzles <3 and 19> is 45 mm, the height of the column nozzles <4 and 18> is 49 mm, the height of the column nozzles <5 and 17> is 53 mm, the height of the column nozzles <6 and 16> is 57 mm, the height of the column nozzles <7 and 15> is 61 mm, the height of the column nozzles <8 and 14> is 65 mm, the height of the column nozzles <9 and 13> is 69 mm, the height of the column nozzles <10 and 12> is 73 mm, and the height of the column nozzles <11 and 13> is 73 mm. <11> The height is 75 mm, and the shape of the column mouth 2 is as follows: Figure 6 Schematic diagram of the column mouth, the installation method of the guzheng column mouth 2 is the same as that of the guqin column mouth 2; the column rod 3, there are 21 column rods 3, each of which is 100 mm high, the top of the column is a circle with a diameter of 6 mm, the foot of the column is a circle with a diameter of 11 mm, and the column body is tapered from the top to the bottom. The shape of the column rod is as follows Figure 7 Schematic diagram of the pole is similar, the installation method of the guzheng pole 3 is the same as that of the guqin pole 3; 21 spring piano code 5, the hoop of the spring piano code 5 is 6mm in diameter, 5mm high and 2mm thick, and the spring piano code 5 foot is 30mm long, 10mm wide and 2mm thick, such as Figure 5 The spring bridge diagram is similar; 21 pieces of amplified steel membrane 12, 200 mm long, 0.5 mm thick, 70 mm wide on both sides and 80 mm wide in the middle, in a top-down diagonal shape, with a conical hole in the middle of the amplified steel membrane, the upper hole diameter is 6 mm, the lower hole diameter is 11 mm, and the middle is tapered to the bottom. The shape and structure of the guzheng amplified steel membrane are similar to those of the guqin Figure 9Schematic diagram of the sound amplification steel membrane and its system structure. The installation method of the guzheng sound amplification steel membrane 12 is the same as that of the guqin sound amplification steel membrane 12; the bottom copper plate 4 of the column group is 250 mm long, 30 mm wide and 3 mm thick, and is shaped like Figure 8 Schematic diagram of the bottom copper plate of the column group. The installation method of the bottom copper plate 4 of the guzheng column group is the same as that of the guqin column group. The combination of the 21 column mouthpieces 2, 21 column rods 3 and the bottom copper plate 4 of the column group of the guzheng belongs to a whole, and the material is ringing copper. The above guzheng string copper column combination structure and its preparation method are exactly the same as the string copper column combination of the guqin.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. A musical instrument structure with a string-copper column combined sound transmission system, comprising a body, the body being a hollow box, the top of the body being a panel (6), the bottom of the body being a soundboard (7), a plurality of strings (1) being fixed on the top of the panel (6), and characterized in that: A first sound hole (8) is provided on the panel (6), the top of the soundboard (7) is fixedly connected to the bottom copper plate (4) of the column group, the top of the bottom copper plate (4) of the column group is fixedly connected to the bottom ends of a plurality of column rods (3), the column rods (3) extend out of the sound amplifying steel film (12), the top of the column rods (3) is fixedly connected to the column mouth (2), the column mouth (2) passes through the first sound hole (8) on the panel (6) and extends out of the instrument body, the column mouth (2) abuts against the strings (1), the column mouth (2) is fixedly connected to the spring bridge (5), and the spring bridge (5) is fixedly connected to the panel (6).

2. A guqin structure comprising the musical instrument structure according to claim 1, characterized in that: The instrument body is the body of a guqin, and a yueshan (10) and a dragon gum (11) are fixed at both ends of the top of the panel (6) along the length direction, and the two ends of the strings (1) are fixed on the yueshan (10) and the dragon gum (11), respectively. A first sound hole (8) is provided on the panel (6) on the side of the yueshan (10); the top of the soundboard (7) is fixedly connected to the bottom copper plate (4) of the column group, and a plurality of column rods (3) are fixed on the bottom copper plate (4) of the column group in sequence, and the column mouth (2) at the top of each column rod (3) abuts against a string (1).

3. The guqin structure according to claim 2, characterized in that: The width of the soundboard (7) is greater than the width of the panel (6). The soundboard (7) is connected to both sides of the panel (6) in the width direction via an inclined side panel (15). The panel (6) forms an arched structure with a high middle and low sides along the width direction. The first sound hole (8) is a strip hole arranged along the width direction of the panel (6).

4. The guqin structure according to claim 3, characterized in that: A second sounding hole (9) is provided on the panel (6) on the side of the dragon gum (11), and the second sounding hole (9) is a strip hole provided along the width direction of the panel (6).

5. The guqin structure according to claim 3, characterized in that: The length of the instrument body is 1400mm~1450mm, the height of the instrument body is 80mm~120mm, the width of the soundboard (7) is 250mm~350mm, and the width of the panel (6) is 210mm~220mm.

6. The guqin structure according to claim 2, characterized in that: The column rod (3) extends out of the sound-amplifying steel membrane (12) in the piano body.

7. The guqin structure according to claim 2, characterized in that: The spring bridge (5) includes a cylindrical main structure, which is sleeved on the outside of the column mouth (2). One end of a spring sheet is fixed on both sides of the cylindrical structure, and the other end of the spring sheet spans the first sound hole (8) and abuts the panel (6).

8. The guqin structure according to claim 2, characterized in that: There are seven strings (1), spring bridges (5), column mouthpieces (2), column rods (3), and sound-amplifying steel membranes (12), each of which forms seven groups of conductive structures; in: Seven strings (1), the length of the strings (1) is 1340mm~1470mm; Seven column mouths (2), the column diameter of the column mouth (2) is 6mm, the top of the column protrudes into a hemisphere with the same diameter as the column, the vertex of the hemisphere is a semi-groove hole in the same direction as the string (1), the diameter of the semi-groove hole is 2mm, the column mouth heights are equal in each pair, and are arranged in order: the first and seventh column mouths (2) are 37mm in height; the second and sixth column mouths (2) are 52mm in height; the third and fifth column mouths (2) are 65mm in height; the fourth column mouth (2) is 75mm high; Seven columns (3), each column (3) is 100mm high, the top of the column is a circle with a diameter of 6mm, the foot of the column is an ellipse with a long axis of 30mm and a short axis of 20mm, the columns (3) are arranged in a line in the direction of the short axis, and are fixed in the middle of the bottom copper plate (4) of the column group, and the rod body of the column (3) is an arc-shaped variable diameter structure from the top end to the bottom end; The bottom copper plate (4) of the column group is one, 160 mm long, 50 mm wide and 3 mm thick; Seven spring bridges (5), the diameter of the cylindrical main structure of the spring bridge (5) is 6mm, the height is 5mm, and the thickness is 2mm; the spring piece of the spring bridge (5) is 30mm long, 10mm wide, and 2mm thick; Seven sound-amplifying steel membranes (12), each 200 mm long, 70 mm wide on both sides, 80 mm wide in the middle, and 0.5 mm thick. There is a solitary hole in the middle of the sound-amplifying steel membrane (12), a 6 mm circular hole on the top surface, and an elliptical hole with a long axis of 30 mm and a short axis of 20 mm on the bottom surface. The long axis of the hole is aligned with the membrane surface, and the short axis is perpendicular to the membrane surface. The overall shape matches the external shape of the column (3); The combination of seven column mouths (2), seven column rods (3), and a column group bottom copper plate (4) is a whole, and the material is brass; Seven column mouthpieces (2), seven spring bridges (5), seven column rods (3), seven sound-amplifying steel membranes (12), and a column group bottom copper plate (4) together constitute the string-copper column combination system for transmitting the sound of the guqin.

9. A method for preparing a guqin structure according to any one of claims 2 to 8, characterized in that: The method comprises the following steps: S1, prepare a soundboard (7) with a length of 1400mm~1450mm and a width of 250mm~350mm, prepare a panel (6) with the same length as the soundboard (7) and a width of 210mm~220mm, the panel (6) forming an arched structure with a high middle and low sides along the width direction, and prepare to connect the soundboard (7) and the panel (6) to form four side panels of the box body; S2, installing the Yueshan (10) and the dragon gum (11) for fixing the end of the string (1) on the panel; S3, on the panel (6) between the Yueshan (10) and the dragon gum (11) and close to the Yueshan (10) at a distance of 200±50mm, a first sound hole (8) is opened on the panel (6) along a direction parallel to the Yueshan (10), and the first sound hole (8) is 170±20mm long and 10±2mm wide; S4. On the panel (6) at a distance of 150±30 mm between the Yueshan (10) and the dragon gum (11) and close to the dragon gum (11), a second sound hole (9) is opened on the panel (6) in a direction parallel to the dragon gum (11). The second sound hole (9) is 150±20 mm long and 6±1 mm wide; S5. Prepare seven strings (1), the length of the strings (1) is 1340mm~1470mm; Prepare seven column mouths (2), the column diameter of the column mouth (2) is 6mm, the top of the column protrudes into a hemisphere with the same diameter as the column, the vertex of the hemisphere is a semi-groove hole in the same direction as the string (1), the diameter of the semi-groove hole is 2mm, the column mouth heights are equal in each other, and are arranged in order: the first and seventh column mouths (2) are 37mm in height; the second and sixth column mouths (2) are 52mm in height; the third and fifth column mouths (2) are 65mm in height; the fourth column mouth (2) is 75mm high; Prepare seven poles (3), each pole (3) is 100 mm high, the pole top is a circle with a diameter of 6 mm, the pole foot is an ellipse with a major axis of 30 mm and a minor axis of 20 mm, the poles (3) are arranged in a line in the direction of the minor axis, and the pole body of the pole (3) is an arc-shaped variable diameter structure from the top to the bottom; Prepare a column bottom copper plate (4) with a length of 160 mm, a width of 50 mm, and a thickness of 3 mm; Prepare seven spring bridges (5), the diameter of the cylindrical main structure of the spring bridge (5) is 6mm, the height is 5mm, and the thickness is 2mm; the spring piece of the spring bridge (5) is 30mm long, 10mm wide, and 2mm thick; Seven sound-amplifying steel membranes (12), each 200 mm long, 70 mm wide on both sides, 80 mm wide in the middle, and 0.5 mm thick, have a solitary hole in the middle of the sound-amplifying steel membrane (12), a 6 mm circular hole on the top surface, and an elliptical hole with a long axis of 30 mm and a short axis of 20 mm on the bottom surface. The long axis of the internal shape of the hole is aligned with the membrane surface, and the short axis is perpendicular to the membrane surface. The overall shape matches the external shape of the column (3). After the seven sound-amplifying steel membranes (12) are installed on the seven column rods (3), the direction of each piece is completely consistent with the direction of the strings (1); S6, fixing seven column mouths (2), seven column rods (3) and a column group bottom copper plate (4) as a whole, and carving a semicircular groove hole at the top of the column mouth (2) along the installation direction of the strings (1); S7, fix the bottom of the bottom copper plate (4) of the column group to the upper plane of the soundboard (7), and make the positions of the seven column mouths (2) correspond to the first sound holes (8), install the amplifying steel film (12), fix the amplifying steel film (12) to the column rod (3), and sleeve the spring bridge (5) on the column mouth (2); S8. Connect and fix the soundboard (7), the panel (6) and the four side panels, place the spring sheet of the spring bridge (5) against the panel (6), install the string (1), tie one end of the string (1) to the mountain (10), buckle the string (1) into the semicircular groove hole at the top of the column mouth (2), tie the other end of the string (1) to the dragon gum (11), tighten and tune it.

10. A guzheng structure comprising the musical instrument structure according to claim 1, characterized in that: The instrument body is the body of a guzheng, and the top of the panel (6) is respectively fixed with a yueshan (10) and a dragon gum (11) at both ends along the length direction, and the two ends of the string (1) are respectively fixed on the yueshan (10) and the dragon gum (11); The panel (6) is 1830 mm long, and has a large end and a small end at both ends along the length direction of the panel (6), and a variable diameter structure with a decreasing width from the large end to the small end, with a width of 330-350 mm at the large end and a width of 280-290 mm at the small end; a first sound hole (8) and a second sound hole (9) are respectively provided in the upper Yueshan (10) and the dragon gum (11) of the panel (6), the first sound hole (8) being 250±20 mm long and 10±2 mm wide, and the second sound hole (9) being 150±20 mm long and 6±1 mm wide; The soundboard (7) is 1830 mm long, and has a large end and a small end at both ends along the length direction of the soundboard (7), and has a variable diameter structure with a decreasing width from the large end to the small end. The large end is 430-450 mm wide and the small end is 380-390 mm wide. The side panels between the panel (6) and the soundboard (7) are 110 mm high; There are twenty-one strings (1), spring bridges (5), column mouthpieces (2), column rods (3), and sound-amplifying steel membranes (12) to form twenty-one conductive structures; in: Strings (1), each string (1) is 1830 mm long; The column mouth (2) is a cylinder with a diameter of 6 mm and a hemisphere with a top protrusion of the same diameter as the cylinder. The vertex of the hemisphere is a semi-groove hole in the same direction as the string (1). The diameter of the semi-groove hole is 2 mm. The twenty-one column mouths (2) are arranged in order, and the heights of the two corresponding ones are equal: the first and the twenty-first column mouths (2) are 37 mm in height, the second and the twentieth column mouths (2) are 41 mm in height, the third and the nineteenth column mouths (2) are 45 mm in height, the fourth and The eighteenth column mouth (2) has a height of 49 mm, the fifth and seventeenth column mouths (2) have a height of 53 mm, the sixth and sixteenth column mouths (2) have a height of 57 mm, the seventh and fifteenth column mouths (2) have a height of 61 mm, the eighth and fourteenth column mouths (2) have a height of 65 mm, the ninth and thirteenth column mouths (2) have a height of 69 mm, the tenth and twelfth column mouths (2) have a height of 73 mm, and the eleventh column mouth (2) has a height of 75 mm alone; Column rods (3), each column rod (3) is 100 mm high, the top of the column rod is a circle with a diameter of 6 mm, the foot of the column rod is a circle with a diameter of 11 mm, and the column rod is tapered from the top to the bottom; The sound-amplifying steel membrane (12) is 200 mm long, 0.5 mm thick, 70 mm wide on both sides and 80 mm wide in the middle, and is in a downward-facing diagonal shape. There is a conical hole in the middle of the sound-amplifying steel membrane, with an upper hole diameter of 6 mm and a lower hole diameter of 11 mm. The middle part is tapered to the bottom and is fitted with the outer sleeve of the column (3); Column group bottom copper plate (4), 250 mm long, 30 mm wide, 3 mm thick; The guzheng comprises twenty-one column mouthpieces (2), twenty-one column rods (3), twenty-one spring bridges (5), and a copper plate (4) at the bottom of the column group, which are a whole and made of resonant copper. The guzheng comprises twenty-one column mouthpieces (2), twenty-one column rods (3), twenty-one spring bridges (5), twenty-one sound-amplifying steel membranes (12), and a copper plate at the bottom of the column group (4), which together constitute the string-copper column combination system for transmitting the sound of the guzheng.

Images