CN111696407B

CN111696407B - Portable finger-exercising device for zheng

Info

Publication number: CN111696407B
Application number: CN202010571029.0A
Authority: CN
Inventors: 杨璋菡萏; 刘一可; 郭金诺
Original assignee: Lanzhou University; Shandong University
Current assignee: Lanzhou University; Shandong University
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-03-12
Anticipated expiration: 2040-06-22
Also published as: CN111696407A

Abstract

The invention relates to the technical field of musical instruments and discloses a portable Guzheng finger-exercising device, wherein a hinge shaft is arranged on a musical instrument board, the left end and the right end of the hinge shaft are fixedly connected with the musical instrument board, a movable lock catch is arranged at the bottom in the musical instrument board and is arranged at a divided position at the bottom in the musical instrument board, a winding device is arranged at the left side of the musical instrument board and penetrates through the wall surface of the left side of the musical instrument board, a cover cap is also arranged at the left side of the musical instrument board and is an arc-shaped plate body, and a movable shaft is arranged at the upper end of the cover cap, the portable Guzheng finger-exercising device changes the whole musical instrument board into a left part and a right part which can be turned over and folded by using the hinge shaft, so that a user can more conveniently carry the portable Guzheng finger-exercising device by turning the volume of the musical instrument board in a folding way, meanwhile, the user can, the practicability of the device is increased.

Description

Portable finger-exercising device for zheng

Technical Field

The invention relates to the technical field of musical instruments, in particular to a portable koto finger-exercising device.

Background

The Chinese zither, also known as Chinese zither, Qin zither, Yao zither and luan zither, is a zither musical instrument in the traditional musical instruments of Chinese Han nationality, belongs to plucked musical instruments, is one of the unique and important national musical instruments of China, has beautiful tone, wide range of sound, rich playing skills and quite strong expressive force, and is deeply loved by the masses of people. At present, small koto, portable koto, mini koto, half koto, new koto and twelve-equal-temperament modulation koto also appear, at present, many people also learn playing of koto, but after learning, the portable koto finger exerciser can be used for strengthening training of the portable koto finger exerciser, the rhythm, the power and the pause time of playing are trained to ensure that the tone and the color of the real koto can not be influenced by the problems, and at present, some blind people can also practice the koto, and the people of the type can only practice by depending on touch sense and auditory sense during the exercise, the existing portable koto finger exerciser has various styles, wherein six strings are more convenient to carry due to small volume, but the portable koto finger exerciser is fixed in length while being carried due to hard setting of the portable koto cause the fact that the strings are fixed during the carrying, so that the portable koto finger exerciser can be damaged during the carrying, and is not suitable for the blind to adjust the tightness of the zither string when in use.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the portable koto finger-training device which has the advantages that the device can be touched by the blind when the blind exercises, and the like, and the problems are solved.

(II) technical scheme

In order to achieve the above purpose, the invention provides the following technical scheme: a portable Chinese zither fingering device comprises a piano plate, base plates, winding shafts and zither strings, wherein the number of the base plates is two, the base plates are respectively arranged on the left side and the right side of the upper surface of the piano plate, the number of the winding shafts is six, the six winding shafts are arranged on the left side of the base plate on the left side in a staggered manner, each winding shaft is provided with a zither string, one end of each zither string is wound on the winding shaft, the other end of each zither string bypasses the base plate on the right side and penetrates through the upper surface of the piano plate, one end, located in the piano plate, of each zither string is fixedly connected with the inner bottom surface of the piano plate, the piano plate is divided into a left part and a right part, the piano plate is provided with a hinge shaft, the left end and the right end of each hinge shaft are fixedly connected with the piano plate, the inner bottom of the piano plate is provided with a movable lock catch, and the upper end of the cover cap is provided with a movable shaft, the upper end of the cover cap is movably connected with the musical instrument board by the movable shaft, and the winding device is positioned in the cover cap.

Preferably, the activity hasp includes the buckle, the buckle is opening decurrent v 21274, the font, the limit length on buckle right side is half of left side length of side, the buckle left side sets up in half on the left side of musical instrument board, half is located half on the right side of musical instrument board on the right side of buckle, buckle left end and musical instrument board bottom surface fixed connection, be provided with the torsional spring axle with the corresponding position on buckle right side on the musical instrument board, torsional spring axle and musical instrument board bottom surface swing joint, be provided with the cardboard on the torsional spring axle, the cardboard is the L form, fixed connection between cardboard minor face and the torsional spring axle, and cardboard minor face length is twice for the one point of the long limit length in buckle left side, the long limit of cardboard is multisection elasticity platelike, the cardboard passes through buckle and musical instrument board joint.

Preferably, the movable lock catch further comprises a roller, the roller is located on the plate body on the left side of the piano plate, the roller is located below the clamping plate, connecting rods are movably mounted at the front end and the rear end of the roller, the connecting rods of the roller are fixedly connected with the piano plate, the tail end of the long side of the clamping plate is provided with a pulling rope, one end of the pulling rope is fixedly connected with the tail end of the long side of the clamping plate, the other end of the pulling rope is lapped on the roller and extends out of an opening in the bottom of the piano plate, and one end of the pulling rope extending.

Preferably, the coiling mechanism includes rolling dish and installation axle, and rolling dish quantity is two, and two rolling dishes are located musical instrument board left side wall and set up around, and two rolling dishes all run through musical instrument board left side wall and set up, and intermeshing between two rolling dishes around and, and the rolling dish centre of a circle all is located the musical instrument board wall, and the equal activity of every rolling dish centre of a circle department has run through the installation axle, and the part that every rolling dish is located the musical instrument board all is provided with the winding piece, and winding piece quantity is three, and the position of three winding piece is corresponding with zither string position respectively, equal fixed mounting has the stay cord on every winding piece, the other end of stay cord cup joints on the zither string rather than corresponding on the winding piece.

Preferably, the winding device further comprises adjusting discs, the number of the adjusting discs is corresponding to the number of the winding shafts, the transverse positions of the adjusting discs are corresponding to the positions of the strings, each adjusting disc penetrates through the left side wall surface of the musical instrument board to be arranged, the circle centers of each adjusting disc are located in the wall surface of the musical instrument board, an installation shaft penetrates through the circle centers of each adjusting disc in a movable mode, one end, located in the musical instrument board, of each adjusting disc is fixedly connected with a linkage rope, and the other end of each linkage rope is sleeved on the portion, located in the musical instrument board, of each string.

Preferably, still be provided with in the buckle and seal the cloth roller, seal cloth roller length and musical instrument board inner chamber width looks adaptation, seal cloth roller front and back both ends and musical instrument board front and back inner wall swing joint, seal fixed connection between cloth roller outermost circle end and the cardboard.

Preferably, the lower surface of the adjusting disc is provided with a mounting groove which is an annular groove, a one-way meshing block is arranged in the mounting groove, the one-way meshing block is a right-angled triangular tooth block, the one-way meshing block is positioned in the mounting groove and laid in the same direction, the one-way meshing block is fixedly connected with the mounting groove, a movable meshing block is arranged at the position, penetrated by the adjusting disc, of the musical instrument board, the position of the movable meshing block corresponds to the position of the mounting groove, the movable meshing block is a right-angled triangular block which is the same as the one-way meshing block in shape and opposite in arrangement direction, a vertical groove which is matched with the movable meshing block in size is arranged below the movable meshing block, a spring is arranged in the vertical groove, the upper end and the lower end of the spring are respectively fixedly connected with the lower surface of the movable meshing block at the bottom of the vertical groove, the musical instrument board is run through and has seted up the sliding tray with the corresponding position of stopper by the adjustment disk on, and sliding tray shape size and stopper looks adaptation on the musical instrument board, and all be provided with the same mounting groove with the same mode on every adjustment disk, one-way meshing piece, activity meshing piece, spring, stopper and perpendicular groove, and the rolling dish upper surface is provided with the same mounting groove with the same mode, one-way meshing piece, activity meshing piece, spring, stopper and perpendicular groove.

Preferably, the left side of each movable meshing block is provided with a compression plate, the compression plates are connected with the musical instrument plate in a sliding mode, the length of each compression plate is matched with the radius length of the adjusting disc, and the left side of each movable meshing block is provided with the same compression plate.

(III) advantageous effects

Compared with the prior art, the invention provides a portable Chinese zither finger trainer which has the following beneficial effects:

1. this portable zither finger-exercising device, use the hinge pin with whole musical instrument board to become can turn over two parts of controlling of folding, let the user when carrying like this, can open the shroud on right side, just so can let the shroud pulling on right side drive and shorten, thereby it is more convenient to carry to fold the musical instrument board and make its volume diminish, the user also can come the zither string to roll up through the coiling mechanism simultaneously, avoid the damage or the winding of zither string, let the musical instrument board can be more small and exquisite when carrying, the practicality of device has been increased.

2. This portable zither finger exercising device, it uses to have set up movable lock, movable lock's design lets it expand the back at the musical instrument board, the user can stabilize musical instrument board overall structure through the mode that carries out the chucking between torsional spring axle and the buckle, the condition that the musical instrument board warp when practising can not appear, the special construction of torsional spring axle can let the user turn over a book when accomodating simultaneously, can be lighter turn over the musical instrument board, thereby let the user can be more convenient accomodate.

3. This portable zither finger exercising device, through the cooperation of activity hasp and shroud, the user is rolling over when rolling over and accomodating, only needs open the shroud, just can let the pulling rope drive the cardboard and contract to let the cardboard deviate from the buckle below, the gyro wheel then can guarantee that the pulling rope carries out normal shrink, guarantees normally deviating from of cardboard, and the user just so can directly use coiling mechanism to carry out the rolling zither string, thereby accelerates user's speed of accomodating.

4. The portable Chinese zither finger-exercising device is provided with the rolling device for use, when a user takes in the finger-exercising device, because the relative distance between the left part and the right part is changed after the musical instrument board is turned over, the zither strings are in a loose state, and the twining between the zither strings can be possibly generated, at the moment, a user can operate by rotating the winding disc, the other winding disc can move relatively, and the winding block can rotate along with the winding disc, thereby quickly rolling all the Chinese zither strings through the pull ropes on the winding blocks, simultaneously ensuring that the Chinese zither strings are not mutually wound to influence the use, and when the guy rope of the winding block winds the kite string, the guy rope of the winding block can slide once along the wound part of the kite string, thereby scraping off the dust on the zither string, and leading a user to obtain better use hand feeling when the user uses the zither string next time.

5. This portable koto finger-exercising device, the structural design of coiling mechanism let the user when using, the user can adjust the elasticity of every zither string through the needs of self, only need open the shroud this moment to rotate the corresponding adjustment disk of zither string with needs adjustment, let the user can adjust the elasticity of zither string according to self demand, improve user's exercise scope.

6. The portable Guzheng finger-exercising device is provided with the sealing cloth roller and the rewinding torsion spring shaft for use, because the sealing cloth roller and the rewinding torsion spring shaft are opposite in winding direction, the sealing cloth roller and the rewinding torsion spring shaft can keep a balanced state, after the piano plate is turned over, the pulling rope can be simultaneously subjected to the pulling force of the rewinding torsion spring shaft and the sealing cloth roller, but also the rewind torsion spring shaft because its more points of fixation enable it to exert more force on the card with respect to the sealing cloth roller, thus, the rope can be pulled to shorten the clamping plate and pull out, at the moment, the piano plate is turned over, the clamping plate pulls the sealing cloth roller to extend due to the limitation of the maximum movable angle between the clamping plate and the piano plate, just so can let the musical instrument board seal the musical instrument board opening part through sealing the cloth roller after turning over, avoid other article cards in carrying to influence the normal assembly of musical instrument board in the buckle.

7. This portable zither finger-exercising device, set up one-way meshing piece and movable meshing piece and use rather than other devices that link to each other, when the user rotated the elasticity that the adjustment dish adjusted the zither string, the user can pass through between one-way meshing piece and the movable meshing piece meshing produced sound and judge the elasticity, the user has confirmed the elasticity situation of zither string when using, only need let according to the user demand rotate the number of turns of corresponding quantity between one-way meshing piece and the movable meshing piece, just can only rely on the sense of hearing and touch to reach the effect of adjusting the zither string elasticity, it can be more convenient when letting the user carry out the use.

8. This portable zither finger-exercising device, it uses to have set up the pressure-receiving board, feel after user's adjustment zither string elasticity too tight or at the musical instrument board by turning over a book accomodate the back, the user can make activity meshing piece slip in perpendicular groove through pressing down corresponding pressure-receiving board, just so can let adjustment disk and rolling dish reverse, thereby better use, simultaneously because the setting of pressure-receiving board length, the user only need push away the position of activity meshing piece with the pressure-receiving board and just can let the adjustment disk reverse, pressure-receiving board still has partly to be located outside the musical instrument board this moment, what kind of zither string is confirmed according to the length that the pressure-receiving board is located outside the musical instrument board that the user just can be very light like this, what also can relax pulls out again the pressure-receiving board makes the device can launch once more simultaneously.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a sectional view of the main body of the present invention;

FIG. 3 is a sectional view of the main structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the structure of the wind-up reel of the present invention;

FIG. 6 is a partial sectional view of the piano plate and the tuning plate according to the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 6 according to the present invention.

In the figure: 1. a musical instrument board; 11. a linkage rope; 2. a hinge axis; 3. a base plate; 4. a winding shaft; 5. a kite string; 6. a cover; 7. a movable lock catch; 71. buckling the plate; 72. a torsion spring shaft; 73. clamping a plate; 74. a roller; 75. pulling the rope; 76. a sealing cloth roller; 8. a winding device; 81. a winding disc; 82. adjusting the disc; 83. installing a shaft; 84. a winding block; 85. mounting grooves; 86. a one-way meshing block; 87. a movable engagement block; 88. a spring; 89. a limiting block; 810. a vertical slot; 811. and pressing and collecting the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1-5, the portable Chinese zither fingering device comprises a musical instrument board 1, two backing plates 3, six winding shafts 4 and musical instrument strings 5, wherein the backing plates 3 are respectively arranged on the left side and the right side of the upper surface of the musical instrument board 1, the six winding shafts 4 are arranged on the left side of the backing plate 3 on the left side in a staggered manner, each winding shaft 4 is provided with a musical instrument string 5, one end of each string 5 is wound on the corresponding winding shaft 4, the other end of each string 5 bypasses the backing plate 3 on the right side and penetrates through the upper surface of the musical instrument board 1, one end of each string 5, which is positioned in the musical instrument board 1, is fixedly connected with the inner bottom surface of the musical instrument board 1, the musical instrument board 1 is divided into a left part and a right part, the musical instrument board 1 is provided with a hinge shaft 2, the left end and the right end of each hinge shaft 2 are fixedly connected with the musical instrument board 1, the inner bottom of the musical instrument, the winding device 8 penetrates through the left side wall surface of the piano plate 1 to be arranged, the cover 6 is further arranged on the left side of the piano plate 1, the cover 6 is an arc-shaped plate body, the movable shaft is arranged at the upper end of the cover 6, the upper end of the cover 6 is movably connected with the piano plate 1 through the movable shaft, the winding device 8 is positioned in the cover 6, the movable lock catch 7 comprises a buckle plate 71, the buckle plate 71 is in a reversed V shape with a downward opening, the length of the edge on the right side of the buckle plate 71 is half of the length of the edge on the left side, the left side of the buckle plate 71 is arranged on the left half part of the piano plate 1, the right half part of the buckle plate 71 is arranged on the right half part of the piano plate 1, the left end of the buckle plate 71 is fixedly connected with the bottom surface of the piano plate 1, a torsion spring shaft 72 is arranged on the position, corresponding to the right side of the buckle plate 71, the torsion spring shaft 72 is movably connected with the bottom surface of the piano plate 1, a clamping plate, the long edge of the clamping plate 73 is in a multi-section elastic plate shape, the clamping plate 73 is clamped below the clamping plate 71 through the clamping plate 71 and the piano plate 1, the movable lock catch 7 further comprises a roller 74, the roller 74 is located on the plate body on the left side of the piano plate 1, the roller 74 is located below the clamping plate 73, connecting rods are movably mounted at the front end and the rear end of the roller 74, the connecting rods of the roller 74 are fixedly connected with the piano plate 1, the tail end of the long edge of the clamping plate 73 is provided with a pulling rope 75, one end of the pulling rope 75 is fixedly connected with the tail end of the long edge of the clamping plate 73, the other end of the pulling rope 75 is lapped on the roller 74 and extends out of an opening in the bottom of the piano plate 1, one end of the pulling rope 75 extending out of the piano plate 1 is fixedly connected with the lower end of the cover 6, the winding device 8 comprises two winding plates 81 and a mounting shaft 83, the front winding plate 81 and the rear winding plate 81 are mutually meshed, the circle centers of the winding plates 81 are all positioned in the wall surface of the musical instrument board 1, the circle center of each winding plate 81 is movably penetrated by an installation shaft 83, the part of each winding plate 81 positioned in the musical instrument board 1 is provided with three winding blocks 84, the number of the winding blocks 84 is three, the positions of the three winding blocks 84 are respectively corresponding to the positions of the musical instruments 5, each winding block 84 is fixedly provided with a stay cord, the other end of the stay cord on each winding block 84 is sleeved on the corresponding musical instrument 5, the winding device 8 further comprises adjusting plates 82, the number of the adjusting plates 82 is corresponding to the number of the winding shafts 4, the transverse positions of the adjusting plates 82 are respectively corresponding to the positions of the musical instruments 5, each adjusting plate 82 is arranged by penetrating through the left side wall surface of the musical instrument board 1, the circle center of each adjusting plate 82 is positioned in the wall surface of the musical instrument board 1, and the circle center of each, one end of the adjusting disc 82 positioned in the musical instrument board 1 is fixedly connected with a linkage rope 11, the other end of the linkage rope 11 is sleeved on the part of the zither string 5 positioned in the musical instrument board 1,

example two: on the basis of the first embodiment, referring to fig. 4, a sealing cloth roller 76 is further arranged in the buckle plate 71, the length of the sealing cloth roller 76 is matched with the width of the cavity of the piano plate 1, the front end and the rear end of the sealing cloth roller 76 are movably connected with the front inner wall and the rear inner wall of the piano plate 1, and the tail end of the outermost ring of the sealing cloth roller 76 is fixedly connected with the clamping plate 73.

Example three: on the basis of the second embodiment, referring to fig. 6-7, the lower surface of the adjusting plate 82 is provided with a mounting groove 85, the mounting groove 85 is an annular groove, a one-way engaging block 86 is arranged in the mounting groove 85, the one-way engaging block 86 is a right-angled triangular tooth block, the one-way engaging block 86 is arranged in the mounting groove 85 in the same direction and fixedly connected with the mounting groove 85, a movable engaging block 87 is arranged at a position on the musical instrument board 1 penetrated by the adjusting plate 82, the position of the movable engaging block 87 corresponds to the position of the mounting groove 85, the movable engaging block 87 is a right-angled triangular block having the same shape as the one-way engaging block 86 but opposite to the mounting direction, a vertical groove 810 matched with the movable engaging block 87 in size is arranged below the movable engaging block 87, a spring 88 is arranged in the vertical groove 810, and the upper end and the lower end of the spring 88, the right-angle side of the movable meshing block 87 is provided with a limiting block 89, the limiting block 89 is a T-shaped strip, the long side end of the limiting block 89 is fixedly connected with the midpoint of the movable meshing block 87, the piano plate 1 is penetrated by the adjusting disc 82 and is provided with a sliding groove at the position corresponding to the limiting block 89, the sliding groove on the piano plate 1 is matched with the limiting block 89 in shape and size, each adjusting disc 82 is provided with the same mounting groove 85, one-way meshing block 86, movable meshing block 87, spring 88, limiting block 89 and vertical groove 810 in the same way, the upper surface of the winding disc 81 is provided with the same mounting groove 85, one-way meshing block 86, movable meshing block 87, spring 88, limiting block 89 and vertical groove 810 in the same way, the left side of the movable meshing block 87 is provided with a compacting plate 811, the compacting plate 811 is connected with the piano plate 1 in a sliding way, and the length of the compacting plate is matched with the, while the left side of each movable engagement block 87 is provided with the same compression plate 811.

When the instrument is used, a user can adjust the tightness of each zither string 5 according to the self requirement, at the moment, the user can adjust the tightness of the zither strings 5 without turning over the instrument board 1 by slightly opening the cover cap 6 and rotating the corresponding adjusting disc 82, the exercise range of the user is improved, meanwhile, the whole instrument board 1 is changed into a left part and a right part which can be turned over by using the hinge shaft 2, so that the user can open the cover cap 6 on the right side when carrying, the cover cap 6 on the right side can pull 75 to drive 73 to be shortened, the volume of the instrument board 1 is reduced by folding, the instrument board is more convenient to carry, meanwhile, the user can also roll the zither strings 5 by using the rolling device 8, the damage or the winding of the zither strings 5 is avoided, and the instrument board 1 can be more compact and exquisite when carrying, the practicability of the device is improved, the movable lock catch 7 is designed in a way that a user can stabilize the whole structure of the piano plate 1 by clamping the torsion spring shaft 72 and the buckle plate 71 after the piano plate 1 is unfolded, the situation that the piano plate 1 is deformed during exercise cannot occur, meanwhile, the special structure of the torsion spring shaft 72 can enable the user to turn over the piano plate 1 more easily when the user turns over and stores the piano plate, so that the user can store the piano plate more conveniently, the user can enable the pulling rope 75 to drive the clamp plate 73 to contract only by opening the cover cap 6 when the user turns over and stores the piano plate, the clamp plate 73 is separated from the buckle plate 71, the roller 74 can ensure the pulling rope 75 to contract normally, the clamp plate 73 is separated normally, and the user can directly use the device 8 to wind the strings 5, therefore, the storage speed of a user is accelerated, when the user stores the musical instrument, because the relative distance between the left part and the right part is changed after the musical instrument board 1 is turned over, the musical instrument strings 5 are in a loose state, the user can operate by rotating the winding disc 81, the other winding disc 81 moves relatively, the winding block 84 rotates along with the winding disc 81, all the musical instrument strings 5 are wound quickly by the pull ropes on the winding block 84, meanwhile, the use of the musical instrument strings 5 is ensured not to be influenced by mutual winding, when the pull ropes of the winding block 84 wind the musical instrument strings 5, the pull ropes of the winding block 84 slide along the wound parts of the musical instrument strings 5 once, so that dust on the musical instrument strings 5 is scraped off, the user can obtain better use hand feeling when the user uses the musical instrument next time, the sealing cloth roller 76 and the rewinding torsion spring shaft are arranged for use, because the sealing cloth roller 76 and the rewinding torsion spring shaft are in opposite winding directions, the sealing cloth roller 76 and the rewinding torsion spring shaft are kept in a balanced state, after the piano plate 1 is turned over, the pulling rope 75 is simultaneously pulled by the rewinding torsion spring shaft and the sealing cloth roller 76, and the rewinding torsion spring shaft can apply more force to the clamping plate 73 relative to the sealing cloth roller 76 because of more fixing points of the rewinding torsion spring shaft, so that the clamping plate 73 can be shortened and separated by pulling the rope 75, at the moment, the piano plate 1 is turned over, the clamping plate 73 pulls the sealing cloth roller 76 to extend because of the limitation of the maximum movable angle between the clamping plate 73 and the piano plate 1, so that the opening of the piano plate 1 can be sealed by the sealing cloth roller 76 after the piano plate 1 is turned over, the phenomenon that other articles in carrying are clamped in the clamping plate 71 to influence the normal assembly of the piano plate 1 is avoided, and the one-way meshing block 86, the movable meshing block 87 and other devices connected with the meshing block are arranged for use, when a user rotates the adjusting disc 82 to adjust the tightness of the zither strings 5, the user can judge the tightness by the sound generated by the meshing between the one-way meshing block 86 and the movable meshing block 87, the user determines the tightness of the zither strings 5 when using the zither, and only by rotating the one-way meshing block 86 and the movable meshing block 87 for a corresponding number of turns according to the use requirement, the effect of adjusting the tightness of the zither strings 5 can be achieved only by hearing and touch, so that the use is more convenient, after the user adjusts the tightness of the strings and feels too tight or the zither plate 1 is turned over and stored, the user can press the corresponding pressing plate 811 to slide the movable meshing block 87 into the vertical groove 810, so that the adjusting disc 82 and the winding disc 81 can be turned over, the better use is achieved, and simultaneously due to the length setting of the pressing plate 811, the user can reverse the adjustment plate 82 by pushing the compression plate 811 through the movable engagement block 87, and at this time, a part of the compression plate 811 is located outside the musical instrument board 1, so that the user can easily determine which kite string 5 is according to the length of the compression plate 811 located outside the musical instrument board 1, and can easily pull out the compression plate 811 again to enable the device to be used again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Portable zither finger trainer, including musical instrument board (1), backing plate (3), winding axle (4) and zither string (5), backing plate (3) quantity is two, backing plate (3) set up respectively in musical instrument board (1) upper surface left and right sides, winding axle (4) quantity is six, six winding axle (4) dislocation set up in left backing plate (3) left side, all be provided with zither string (5) on every winding axle (4), zither string (5) one end winding and winding are epaxial (4), musical instrument string (5) other end is walked around backing plate (3) on right side and is run through musical instrument board (1) upper surface setting, one end that string (5) are located musical instrument board (1) and musical instrument board (1) bottom surface fixed connection, its characterized in that: divide equally for controlling two parts musical instrument board (1), be provided with hinge pin (2) on musical instrument board (1), fixed connection between both ends and musical instrument board (1) about hinge pin (2), musical instrument board (1) bottom is provided with movable hasp (7), movable hasp (7) set up in musical instrument board (1) bottom by the split position, musical instrument board (1) left side is provided with coiling mechanism (8), coiling mechanism (8) run through musical instrument board (1) left side wall and set up, musical instrument board (1) left and right sides all is provided with shroud (6), shroud (6) are the arc plate body, and shroud (6) upper end is provided with the loose axle, shroud (6) upper end uses loose axle and musical instrument board (1) swing joint, coiling mechanism (8) are located left shroud (6).

2. The portable koto finger trainer according to claim 1, wherein: the movable lock catch (7) comprises a buckle plate (71), the buckle plate (71) is 21274provided with a downward opening, the shape of a Chinese character 'zi' is provided, the length of the edge of the right side of the buckle plate (71) is half of the length of the edge of the left side, the left side of the buckle plate (71) is arranged on the left half of the piano plate (1), the right half of the buckle plate (71) is arranged on the right half of the piano plate (1), the left end of the buckle plate (71) is fixedly connected with the bottom surface of the piano plate (1), a torsion spring shaft (72) is arranged on the piano plate (1) corresponding to the right side of the buckle plate (71), the torsion spring shaft (72) is movably connected with the bottom surface of the piano plate (1), a clamp plate (73) is arranged on the torsion spring shaft (72), the clamp plate (73) is L, the length of the short side of the clamping plate (73) is twice of the length of the long side of the left side of the buckling plate (71), the long side of the clamping plate (73) is in a multi-section elastic plate shape, and the torsion spring shaft (72) is clamped below the buckling plate (71) through the buckling plate (71) and the piano plate (1).

3. The portable koto finger trainer according to claim 2, wherein: the movable lock catch (7) also comprises a roller (74), the roller (74) is positioned on the left board body of the piano board (1), the roller (74) is positioned below the torsion spring shaft (72), the front end and the rear end of the roller (74) are movably provided with connecting rods, the connecting rods of the roller (74) are fixedly connected with the piano plate (1), the tail end of the long side of the torsion spring shaft (72) is provided with a pulling rope (75), one end of the pulling rope (75) is fixedly connected with the tail end of the long side of the torsion spring shaft (72), the other end of the pulling rope (75) is lapped on the roller (74) and extends out of an opening at the bottom of the piano plate (1), one end of the pulling rope (75) extending out of the piano plate (1) is arranged through the right cover (6), the rewinding torsion spring shaft is arranged in the right cover (6), and the front end and the rear end of a backrush torsion spring shaft in the cover cap (6) on the right side are movably connected with the cover cap (6), and a pulling rope (75) is fixedly connected with the backrush torsion spring shaft.

4. The portable koto finger trainer according to claim 1, wherein: the winding device (8) comprises two winding disks (81) and an installation shaft (83), the two winding disks (81) are arranged in front of and behind the left side wall surface of the piano plate (1), the two winding disks (81) are arranged by penetrating through the left side wall surface of the piano plate (1), the front and the back coiling disks (81) are mutually meshed, the circle centers of the coiling disks (81) are all positioned in the wall surface of the piano plate (1), a mounting shaft (83) is movably penetrated through the circle center of each winding disc (81), winding blocks (84) are arranged on the part of each winding disc (81) positioned in the piano plate (1), the number of the winding blocks (84) is three, the positions of the three winding blocks (84) respectively correspond to the positions of the zither strings (5), a pull rope is fixedly installed on each winding block (84), and the other end of the pull rope on each winding block (84) is sleeved on the corresponding zither string (5).

5. The portable koto finger trainer according to claim 4, wherein: coiling mechanism (8) still include adjusting disk (82), adjusting disk (82) quantity is corresponding with winding axle (4) quantity, and adjusting disk (82) lateral position is corresponding with the position of zither string (5) respectively, every adjusting disk (82) all runs through musical instrument board (1) left side wall and sets up, every adjusting disk (82) centre of a circle all is located musical instrument board (1) wall, and every adjusting disk (82) centre of a circle department all activity runs through and has installed axle (83), one end fixedly connected with interlock rope (11) that adjusting disk (82) are located musical instrument board (1), the interlock rope (11) other end cup joints in on the part that zither string (5) are located musical instrument board (1).

6. The portable koto finger trainer according to any one of claims 2 and 3, wherein: still be provided with in buckle (71) and seal cloth roller (76), seal cloth roller (76) length and musical instrument board (1) inner chamber width looks adaptation, seal cloth roller (76) front and back both ends and musical instrument board (1) front and back inner wall swing joint, seal cloth roller (76) outermost circle end and cardboard (73) between fixed connection.

7. The portable koto finger trainer according to claim 5, wherein: the lower surface of the adjusting disc (82) is provided with a mounting groove (85), the mounting groove (85) is an annular groove, a one-way meshing block (86) is arranged in the mounting groove (85), the one-way meshing block (86) is a right-angled triangular tooth block, the one-way meshing block (86) is positioned in the mounting groove (85) and laid in the same direction, the one-way meshing block (86) is fixedly connected with the mounting groove (85), a movable meshing block (87) is arranged at a position on the musical instrument board (1) penetrated by the adjusting disc (82), the position of the movable meshing block (87) corresponds to the position of the mounting groove (85), the movable meshing block (87) is a right-angled triangular block which is the same as the one-way meshing block (86) in shape but opposite to the direction, a vertical groove (810) matched with the movable meshing block in size is formed below the movable meshing block (87), a spring (88) is arranged in the vertical groove (810), the upper end and the lower end of the spring (88, a limiting block (89) is arranged on the right-angle side of the movable meshing block (87), the limiting block (89) is a T-shaped strip, the long side end of the limit block (89) is fixedly connected with the middle point of the movable meshing block (87), the piano plate (1) is penetrated by the adjusting disc (82) and a sliding groove is arranged at the position corresponding to the limit block (89), the shape and the size of the sliding groove on the piano plate (1) are matched with the limiting block (89), and each adjusting disc (82) is provided with the same mounting groove (85), one-way meshing block (86), movable meshing block (87), spring (88), limiting block (89) and vertical groove (810) in the same way, and the upper surface of the winding disc (81) is provided with the same mounting groove (85), one-way meshing block (86), movable meshing block (87), spring (88), limiting block (89) and vertical groove (810) in the same way.

8. The portable koto finger trainer according to claim 7, wherein: the left side of each movable meshing block (87) is provided with a pressing plate (811), the pressing plates (811) are in sliding connection with the musical instrument board (1), the length of each pressing plate (811) is matched with the length of the radius of the adjusting plate (82), and the left side of each movable meshing block (87) is provided with the same pressing plate (811).