阅读说明：本技术 一种钢琴琴谱用支撑结构 (Supporting structure for piano music score ) 是由 黄娟 于 2021-05-28 设计创作，主要内容包括：一种钢琴琴谱用支撑结构,本发明涉及钢琴配件技术领域,它包含支撑主板,支撑主板利用合页铰接在琴盖的内侧壁上；支撑主板的正面左右对称开设有置纳槽,且左右两个置纳槽的外端均贯穿支撑主板设置；位于置纳槽前后两侧的支撑主板中开设有条形导向槽,且前侧的条形导向槽为前后贯通设置；支撑辅板分别活动设置在左右对称的两个置纳槽内；旋转座以及数块板块的一侧面均开设有螺孔,位于板块上的螺孔与螺杆相对设置,位于同一个置纳槽中的数块板块以及旋转座首尾相邻设置,且均利用螺杆与螺孔的旋接配合,连接固定；左右两个旋转座的相对侧壁中均开设有插槽。其能够适用于多种类型的琴谱,有利于琴谱的支撑,适用范围广,可调节适应性强。(The invention relates to a supporting structure for piano music score, which relates to the technical field of piano accessories and comprises a supporting main board, wherein the supporting main board is hinged on the inner side wall of a piano cover by using a hinge; the front surface of the supporting main board is symmetrically provided with accommodating grooves in the left and right directions, and the outer ends of the left and right accommodating grooves penetrate through the supporting main board; strip-shaped guide grooves are formed in the support main boards positioned on the front side and the rear side of the accommodating groove, and the strip-shaped guide grooves on the front side are arranged in a front-rear penetrating manner; the supporting auxiliary plates are respectively and movably arranged in the two accommodating grooves which are symmetrical left and right; screw holes are formed in one side surface of the rotating seat and one side surface of each of the plates, the screw holes in the plates are arranged opposite to the screw rods, the plates and the rotating seat which are positioned in the same accommodating groove are arranged end to end adjacently, and are connected and fixed by the screw rods and the screw holes in a screwing and matching manner; slots are arranged in the opposite side walls of the left rotating seat and the right rotating seat. The musical instrument spectrum support device can be suitable for various musical instrument spectrums, is beneficial to supporting the musical instrument spectrums, and has wide application range and strong adjustable adaptability.)

1. The utility model provides a piano is bearing structure for musical instrument register for easy reference which characterized in that: the musical instrument comprises a supporting main board (2), wherein the supporting main board (2) is hinged to the inner side wall of a musical instrument cover (1) by a hinge; the front surface of the supporting main board (2) is symmetrically provided with accommodating grooves (2-1) in the left and right directions, and the outer ends of the left and right accommodating grooves (2-1) penetrate through the supporting main board (2); the support mainboard (2) that is located to put both sides around holding groove (2-1) is seted up in and is equipped with bar guide way (2-2), and bar guide way (2-2) of front side are for the front and back through setting, and it still contains:

the positioning hand screw (4) is movably arranged in the strip-shaped guide groove (2-2) in the front side in a penetrating manner;

the number of the auxiliary supporting plates (3) is two, and the auxiliary supporting plates (3) are respectively and movably arranged in the two accommodating grooves (2-1) which are bilaterally symmetrical; the auxiliary support plate (3) comprises:

the plate blocks (3-1) are provided with a plurality of plate blocks (3-1), and a screw rod (3-3) is fixed on one side wall of each plate block (3-1);

the screw holes (3-6) are formed in one side face of the rotating seat (3-2) and one side face of each of the plates (3-1), the screw holes (3-6) in the plates (3-1) are opposite to the screw rods (3-3), the plates (3-1) and the rotating seat (3-2) in the same accommodating groove (2-1) are arranged end to end adjacently, and the screw rods (3-3) are matched with the screw holes (3-6) in a screwing mode and are fixedly connected; slots (3-5) are formed in opposite side walls of the left rotating seat (3-2) and the right rotating seat (3-2);

the guide shaft rods (3-4) are respectively fixed on the front side wall and the rear side wall of the rotating seat (3-2) in a front-back mode, the positioning hand screws (4) penetrate through the strip-shaped guide grooves (2-2) on the front side and then are connected in the guide shaft rods (3-4) on the front side in a threaded mode, and the end portions of the positioning hand screws (4) abut against the front side wall of the supporting main board (2).

2. The supporting structure for a piano score according to claim 1, wherein: plate grooves (3-9) are formed in one side face of each of the plates (3-1), openings are formed in the slots (3-5) and one side wall in the plate grooves (3-9), ejector rods (3-7) are movably inserted in the openings, springs (3-8) are connected to the inner ends of the ejector rods (3-7), the other ends of the springs (3-8) are fixedly connected with the inner wall of the openings, and inclined planes (3-10) are symmetrically arranged at the outer ends of the ejector rods (3-7) up and down.

3. The supporting structure for a piano score according to claim 1, wherein: and an anti-skid layer (3-12) is fixed on one side surface of the plate (3-1) and the rotating seat (3-2).

4. The supporting structure for a piano score according to claim 1, wherein: a chamfer (3-11) is arranged at one corner of the plate (3-1) far away from one side of the rotating seat (3-2).

5. The supporting structure for a piano score according to claim 1, wherein: the plate (3-1) is internally provided with a clamping block guide groove (3-13), the clamping block guide groove (3-13) penetrates through the top of the plate (3-1), the positioning clamping block (5) is movably arranged in the clamping block guide groove (3-13) up and down, the upper surface of the positioning clamping block (5) is adsorbed and arranged with the magnet at the bottom of the plate (3-1) above the positioning clamping block, the lower surface of the positioning clamping block (5) is obliquely arranged from outside to inside in a high-to-low shape and movably abutted against the upper end of the longitudinal push plate (8), and the lower end of the longitudinal push plate (8) movably penetrates through a push plate sliding groove (3-14) formed in the bottom wall of the clamping block guide groove (3-13) and then is fixed on the annular wall of the transverse push rod (7); the transverse push rod (7) is movably arranged in a push rod groove (3-15) arranged in the plate (3-1), one end of the transverse push rod (7) is connected with the inner end of the ejector rod (3-7) positioned in the plate (3-1) by a connecting rod (9), and the connecting rod (9) is arranged in a spring (3-8) positioned in the plate (3-1) in a penetrating way; the side wall of the longitudinal push plate (8) is movably adsorbed with the magnet layer (6), and the magnet layer (6) is fixed on the side wall of the clamping block guide groove (3-13).

6. The supporting structure for a piano score according to claim 5, wherein: the outside of the bottom surface of the positioning clamping block (5) is provided with a yielding groove (5-1), and the upper bending part and the lower bending part of the groove surface of the yielding groove (5-1) are arc-shaped excessive angles (5-2).

7. The operating principle of the supporting structure for piano score according to claim 1, characterized in that: when the support auxiliary plate (3) is not needed to be used, the support auxiliary plate (3) is placed in the accommodating groove (2-1), and the upper surface of the support auxiliary plate (3) is flush with the upper surface of the support main plate (2);

when the piano cover is required to be used, the piano cover (1) is opened, the supporting main board (2) is turned over, the positioning hand screw (4) is unscrewed, the left and right supporting auxiliary boards (3) are respectively rotated and opened to 90 degrees towards the left and right sides from the accommodating groove (2-1), the supporting auxiliary boards (3) are driven to move left and right in the accommodating groove (2-1) to a proper width according to the width of a supported piano score and are screwed and fixed by the positioning hand screw (4), then a plurality of plates (3-1) in the supporting auxiliary boards (3) at the left and right sides are respectively rotated according to the height of the piano score, the adjacent plates (3-1) achieve height adjustment under the rotating action of the screw rods (3-3), and a plurality of plates (3-1) are adjusted to the same plane, then, a whole body formed by the plurality of plates (3-1) rotates around the screw rod (3-3) at the bottommost end, the whole body is vertical to the rotary seat (3-2), the lower edge of the music score can be inserted into the slots (3-5) of the left rotary seat and the right rotary seat (3-2) which are opposite, and the back of the music score is leaned against the supporting auxiliary plate (3);

when the width of the music score exceeds the length of the supporting main board (2), the left and right supporting auxiliary boards (3) are respectively rotated and opened to 180 degrees towards the left and right sides from the accommodating groove (2-1), the supporting auxiliary boards (3) and the supporting main board (2) are positioned on the same horizontal plane, and then the music score can be placed on the whole body formed by the supporting auxiliary boards (3) at the left and right sides and the supporting main board (2) in the middle after being screwed and fixed by a positioning hand (4), and the back of the music score is leaned against the inner side wall of the music score cover (1).

Technical Field

The invention relates to the technical field of piano accessories, in particular to a supporting structure for a piano score.

Background

The back of the cover of the existing upright piano is provided with a strip-shaped structure for supporting the music score. However, the supporting structure only has a lifting function, so that the supporting function of the supporting structure in the using process is not ideal, and when a large paper-type music score is encountered, the paper-type music score is easy to collapse due to the fact that the paper-type music score is soft, and is not favorable for being supported; if the thick book-type music score is met, the page-turned music score needs to be fixed by another music score clamp, so that the music score is not convenient to support quickly.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a piano music score supporting structure which can be suitable for various types of music scores, is beneficial to supporting the music scores, and has wide application range and strong adjustability.

In order to achieve the purpose, the invention adopts the following technical scheme: the musical instrument cover comprises a supporting main board, wherein the supporting main board is hinged to the inner side wall of the musical instrument cover by using a hinge; the front surface of the supporting main board is symmetrically provided with accommodating grooves at the left and right sides, and the outer ends of the left and right accommodating grooves penetrate through the supporting main board; the support mainboard that is located to put and receives both sides around the groove has seted up the bar guide way, and the bar guide way of front side link up the setting for the front and back, and it still contains:

the positioning hand screw is movably arranged in the strip-shaped guide groove in the front side in a penetrating way;

the two auxiliary supporting plates are movably arranged in the two accommodating grooves which are symmetrical left and right respectively; the support auxiliary plate includes:

the plate comprises a plurality of plates, and a screw is fixed on one side wall of each plate;

the screw holes are formed in the rotating seat and one side surface of each of the plates, the screw holes in the plates are arranged opposite to the screw rods, the plates and the rotating seat which are positioned in the same accommodating groove are arranged end to end adjacently, and are connected and fixed by the screw rods and the screw holes in a screwing and matching manner; slots are formed in opposite side walls of the left rotating seat and the right rotating seat;

the guide shaft rod is respectively fixed on the front side wall and the rear side wall of the rotary seat in the front-back direction, the positioning hand is screwed in the guide shaft rod on the front side after penetrating through the strip-shaped guide groove on the front side, and the screwed end part of the positioning hand is abutted on the front side wall of the supporting main board.

Preferably, a plate groove is formed in one side face of each of the plates, an opening is formed in each of the slot and one side wall in each of the plate grooves, a push rod is movably inserted into each opening, a spring is connected to the inner end of each push rod, the other end of each spring is fixedly connected with the inner wall of each opening, and inclined planes are symmetrically arranged at the outer ends of the push rods up and down.

Preferably, an anti-slip layer is fixed on one side surface of the plate and one side surface of the rotating seat.

Preferably, a corner of the plate on the side far away from the rotating seat is provided with a chamfer.

Preferably, a clamping block guide groove is formed in the plate, the clamping block guide groove penetrates through the top of the plate, the positioning clamping block is movably arranged in the clamping block guide groove up and down, the upper surface of the positioning clamping block is attracted and attached to a magnet at the bottom of the plate above the positioning clamping block, the lower surface of the positioning clamping block is obliquely arranged from outside to inside in a height-up mode and movably abutted against the upper end of the longitudinal push plate, and the lower end of the longitudinal push plate movably penetrates through a push plate sliding groove formed in the bottom wall of the clamping block guide groove and then is fixed on the annular wall of the transverse push rod; the transverse push rod is movably arranged in a push rod groove 3-15 arranged in the plate block, one end of the transverse push rod is connected with the inner end of the push rod positioned in the plate block by a connecting rod, and the connecting rod is arranged in a spring positioned in the plate block in a penetrating way; the side wall of the longitudinal push plate is movably adsorbed with the magnet layer, and the magnet layer is fixed on the side wall of the clamping block guide groove.

Preferably, the outside of the bottom surface of the positioning clamping block is provided with a yielding groove, and the upper bending part and the lower bending part of the groove surface of the yielding groove are arc-shaped excessive angles.

The working principle of the invention is as follows: when the supporting auxiliary plate is not needed to be used, the supporting auxiliary plate is placed in the accommodating groove, and the upper surface of the supporting auxiliary plate is flush with the upper surface of the supporting main plate;

when the piano is required to be used, the piano cover is opened, the supporting main board is turned over, then the positioning hand is unscrewed, the left and right supporting auxiliary boards are respectively rotated and opened to 90 degrees towards the left and right sides from the accommodating groove, the supporting auxiliary boards are driven to move left and right in the accommodating groove to a proper width according to the width of the supported piano score and are screwed and fixed by the positioning hand, then a plurality of plates in the supporting auxiliary boards at the left and right sides are respectively rotated according to the height of the piano score, the adjacent plates are subjected to height adjustment under the rotating action of the screw rods, the plates are adjusted to the same plane, then a whole formed by the plates rotates around the screw rod at the bottom end, the whole is vertical to the rotating seat, at the moment, the lower edges of the piano score can be inserted into the inserting grooves of the left and right opposite rotating seats, and the back of the piano score is leaned on the supporting auxiliary boards;

when the width of musical instrument register for easy reference surpassed the length of supporting the mainboard, will control this moment two and support the auxiliary plate and rotate to open to 180 to the left and right sides respectively from putting the groove, support the auxiliary plate and be in same horizontal plane with the support mainboard this moment, reuse the location hand screw up fixed back, can place the musical instrument register for easy reference on the whole that the support auxiliary plate and the support mainboard in the middle of by the left and right sides constitute, the back of musical instrument register for easy reference then leans on the inside wall of musical instrument lid.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a supporting structure for piano music score, which can be suitable for various types of music scores, is beneficial to supporting the music score, and has wide application range and strong adjustability and adaptability.

Description of the drawings:

FIG. 1 is a schematic view of the connection of the present invention to a piano lid.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a sectional view taken along line B-B in fig. 2.

Fig. 4 is a cross-sectional view of a support main plate of the present invention.

Fig. 5 is a schematic structural view of the rotary base of the present invention.

Fig. 6 is an enlarged view of the structure of portion a in fig. 1.

Fig. 7 is a sectional view taken along line C-C in fig. 5.

Fig. 8 is an exploded view of a support auxiliary plate according to the present invention.

Fig. 9 is an enlarged view of the structure of the portion D in fig. 8.

Fig. 10 is a cross-sectional view of a positioning block of the present invention.

Fig. 11 is a vertical use state view of the support auxiliary plate of the present invention.

Fig. 12 is a horizontal use state diagram of the support auxiliary plate of the present invention.

Description of reference numerals:

the musical instrument comprises a musical instrument cover 1, a supporting main board 2, an accommodating groove 2-1, a strip-shaped guide groove 2-2, a supporting auxiliary board 3, a plate 3-1, a rotary seat 3-2, a screw rod 3-3, a guide shaft rod 3-4, an inserting groove 3-5, a screw hole 3-6, a push rod 3-7, a spring 3-8, a board groove 3-9, an inclined plane 3-10, a chamfer 3-11, an anti-slip layer 3-12, a clamping block guide groove 3-13, a push plate sliding groove 3-14, a positioning hand screw 4, a positioning clamping block 5, a abdicating groove 5-1, an arc-shaped excessive angle 5-2, a magnet layer 6, a transverse push rod 7, a longitudinal push plate 8 and a connecting rod 9.

The specific implementation mode is as follows:

the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the preferred embodiments in the description are only examples, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.

As shown in fig. 1 to 10, the following technical solutions are adopted in the present embodiment: the musical instrument comprises a supporting main board 2, wherein the supporting main board 2 is hinged on the inner side wall of a musical instrument cover 1 by using a hinge; the front surface of the supporting main board 2 is symmetrically provided with accommodating grooves 2-1 at the left and right sides, and the outer ends of the left and right accommodating grooves 2-1 are arranged through the supporting main board 2; the support mainboard 2 that is located both sides around putting into groove 2-1 is seted up in and is had a bar guide way 2-2, and the bar guide way 2-2 of front side link up the setting for the front and back, and it still contains:

a positioning hand screw 4, wherein the positioning hand screw 4 is made of hard plastic materials and movably penetrates through the strip-shaped guide groove 2-2 on the front side;

two auxiliary supporting plates 3 are movably arranged in the two accommodating grooves 2-1 which are symmetrical left and right respectively; the support auxiliary plate 3 includes:

the plate 3-1, the said plate 3-1 is several, its material is the same as supporting the material of the mainboard 2, and a sidewall of each plate 3-1 is fixed with the threaded spindle 3-3;

the material of the rotating seat 3-2 is the same as that of the supporting main board 2, screw holes 3-6 are formed in one side face of the rotating seat 3-2 and one side face of each of the plates 3-1, the screw holes 3-6 in the plates 3-1 are arranged opposite to the screw rods 3-3, the three plates 3-1 and the rotating seat 3-2 in the same accommodating groove 2-1 are arranged end to end adjacently, and the screw rods 3-3 and the screw holes 3-6 are matched in a screwing mode and are fixedly connected; slots 3-5 are formed in opposite side walls of the left rotating seat 3-2 and the right rotating seat 3-2;

the material of the guide shaft lever 3-4 is the same as that of the support main board 2, the guide shaft lever 3-4 is fixed on the front side wall and the rear side wall of the rotary seat 3-2 respectively by screws, the positioning hand screw 4 is connected in the guide shaft lever 3-4 on the front side in a threaded manner after penetrating through the strip-shaped guide groove 2-2 on the front side, and the end part of the positioning hand screw 4 abuts against the front side wall of the support main board 2.

As a preferred scheme, further, plate grooves 3-9 are formed in one side face of each of three plate blocks 3-1, openings are formed in the side walls of the slots 3-5 and the plate grooves 3-9, ejector rods 3-7 are movably inserted into the openings, springs 3-8 are connected to the inner ends of the ejector rods 3-7, the other ends of the springs 3-8 are fixedly connected with the inner walls of the openings, inclined planes 3-10 are symmetrically arranged at the outer ends of the ejector rods 3-7 from top to bottom, and the inclined planes 3-10 enable musical instrument spectrums to be placed and taken out more smoothly.

Preferably, the anti-slip layer 3-12 is adhered and fixed on one side of the plate 3-1 and the rotating seat 3-2 by glue, and the anti-slip layer 3-12 is made of silica gel.

Preferably, a chamfer 3-11 is further formed at one corner of the plate 3-1 at the side far away from the rotating seat 3-2, so that the plate 3-1 can rotate conveniently.

As a preferable scheme, furthermore, a clamping block guide groove 3-13 is formed in the plate 3-1, the clamping block guide groove 3-13 penetrates through the top of the plate 3-1, the positioning clamping block 5 is movably arranged in the clamping block guide groove 3-13 up and down, the upper surface of the positioning clamping block 5 is attracted and attached to a magnet at the bottom of the plate 3-1 above the positioning clamping block 5, the lower surface of the positioning clamping block 5 is obliquely arranged from outside to inside in a high-to-low shape and movably abutted against the upper end of the longitudinal push plate 8, and the lower end of the longitudinal push plate 8 movably penetrates through a push plate sliding groove 3-14 formed in the bottom wall of the clamping block guide groove 3-13 and then is fixed on the annular wall of the transverse push rod 7; the transverse push rod 7 is movably arranged in a push rod groove 3-15 arranged in the plate 3-1, one end of the transverse push rod 7 is connected with the inner end of the ejector rod 3-7 positioned in the plate 3-1 by a connecting rod 9, and the connecting rod 9 is arranged in a spring 3-8 positioned in the plate 3-1 in a penetrating way; the side wall of the longitudinal push plate 8 is movably adsorbed with the magnet layer 6, and the magnet layer 6 is fixed on the side wall of the clamping block guide groove 3-13.

Preferably, the outside of the bottom surface of the positioning clamping block 5 is provided with a yielding groove 5-1, the upper and lower bending parts of the groove surface of the yielding groove 5-1 are arc-shaped excessive angles 5-2, and the arc-shaped excessive angles 5-2 are arranged to ensure that the positioning clamping block 5 moves more smoothly in the left-right movement process.

The working principle of the specific embodiment is as follows: when the support auxiliary plate 3 is not needed to be used, the support auxiliary plate 3 is placed in the accommodating groove 2-1, and the upper surface of the support auxiliary plate 3 is flush with the upper surface of the support main plate 2;

when in use, the piano cover 1 is opened, the supporting main board 2 is turned over, the positioning hand screw 4 is unscrewed, the left and right supporting auxiliary boards 3 are respectively rotated and opened to 90 degrees towards the left and right sides from the accommodating groove 2-1, the supporting auxiliary boards 3 are driven to move left and right in the accommodating groove 2-1 to a proper width according to the width of the supported piano score and are screwed and fixed by the positioning hand screw 4, then a plurality of plates 3-1 in the supporting auxiliary boards 3 at the left and right sides are respectively rotated according to the height of the piano score, the adjacent plates 3-1 are subjected to height adjustment under the rotation action of the screw rods 3-3, the plates 3-1 are adjusted to the same plane, then a whole body formed by the plates 3-1 rotates around the screw rod 3-3 at the bottom end, and the whole body is perpendicular to the rotating seat 3-2, at the moment, the lower edge of the music score can be inserted into the slots 3-5 of the left rotating seat 3-2 and the right rotating seat 3-2, the ejector rods 3-7 positioned in the slots 3-5 are pressed down and retracted by the music score, after the bottom of the music score is contacted with the bottom wall of the slots 3-5, the ejector rods 3-7 are abutted against the music score under the action of the springs 3-8 to play a role in positioning the music score, and the back of the music score is abutted against the supporting auxiliary plate 3; when the paper music score is used, the upper edge of the paper music score is folded backwards into a gap between two adjacent plates 3-1 which are flush with the upper edge of the paper music score, the push rods 3-7 are pushed inwards, the push rods 3-7 drive the horizontal push rods 7 to move inwards through the connecting rods 9, meanwhile, the horizontal push rods 7 drive the longitudinal plates 8 to move inwards, the longitudinal push plates 8 abut against the positioning clamping blocks 5 at the upper ends of the longitudinal push plates until the longitudinal push plates are adsorbed to the magnet layers 6 on the bottom surfaces of the plates 3-1 above, and therefore the edges of the paper music score are fixed.

When the width of the music score exceeds the length of the supporting main board 2, the left and right supporting auxiliary boards 3 are respectively rotated and opened to 180 degrees towards the left and right sides from the accommodating grooves 2-1, at the moment, the supporting auxiliary boards 3 and the supporting main board 2 are positioned on the same horizontal plane, and then the positioning hand is used for screwing 4 to be screwed and fixed, so that the music score can be placed on the whole formed by the supporting auxiliary boards 3 at the left and right sides and the supporting main board 2 in the middle, at the moment, the bottom of the music score is supported by the rotating base 3-2 and the ejector rods 3-7 in the plate 3-1, and the back of the music score is leaned against the inner side wall of the music score cover 1.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. the arrangement of the auxiliary supporting plate can meet the requirements of supporting music scores of different sizes and different types;

2. the supporting auxiliary plate is formed by connecting a plurality of plates, and the supporting auxiliary plate can be adjusted vertically and horizontally in a rotatable adjusting mode, so that the supporting of music scores of different sizes and different types can be met;

3. the arranged positioning clamping blocks and other structures can clamp and position the edges of the paper music score, so that the stability of music score support is improved;

4. the position of the auxiliary supporting plate is adjustable, and the requirements for supporting music instruments with different sizes are met.

The first embodiment is as follows:

referring to fig. 11, in the present embodiment, the left and right supporting auxiliary boards 3 are both arranged perpendicular to the supporting main board 2, and the plurality of plates 3-1 in each supporting auxiliary board 3 rotate at 90 ° perpendicular to the rotating base 3-2, at this time, the bottom edge of the music score is inserted into the slot 3-5 in the rotating base 3-2, and the back of the music score is leaned against the plate 3-1 behind the back, and the height between the plates 3-1 can be adjusted by the screw 3-3, so as to meet the supporting requirements of the music scores with different heights; the distance between the left and right rotary seats 3-2 can be adjusted, so that the support of the music score with different widths can be met.

Example two;

referring to fig. 12, in the present embodiment, the left and right support auxiliary boards 3 and the support main board 2 are horizontally disposed, the lower edges of the music score are inserted into the slots 3-5 of the support main board 2 and the support auxiliary boards 3, and the back of the music score is leaned against the cover, so that the support of the music score with a longer length can be satisfied.

It will be appreciated by those skilled in the art that modifications and equivalents may be made to the embodiments described above, and that various modifications, equivalents, improvements and the like may be made without departing from the spirit and scope of the invention.