Music stand with adjustable angle

Abstract

The embodiment of the utility model discloses an angle-adjustable music stand. The angle-adjustable music stand comprises a music plate and a support frame, the support frame comprises an adjusting assembly with at least one degree of freedom; the music score plate is connected to the adjusting assembly. The adjusting assembly is used for adjusting the angle of the music score plate on the supporting frame. In some embodiments, the adjustment assembly includes a first fitting and a second fitting; the first end of the first accessory is rotatably connected with the first end of the second accessory. In the embodiment of the invention, the adjusting assembly of the music stand has at least one degree-of-freedom adjusting capability, and a player adjusts the observation angle of the music score plate according to the situation. In addition, detachable connection between the music score plate and the supporting frame can be achieved through the adjusting nut, the tightness can be controlled, and the angle of the music score plate on the supporting frame can be adjusted conveniently. The music stand can be matched with different fixing assemblies according to different musical instruments, so that the performance of a player is freer. The music stand can be fixed on an arm of a musical instrument or a player especially during playing in travel.

Description

Technical Field

[0001] An embodiment of the present application relates to a music stand with adjustable angle. Background Art

[0002] Sheet music is a method of recording music using symbols, which records information such as the pitch, duration, and rhythm of music. The existence of sheet music enables musicians to understand and master the composer's intentions by reading these symbols, so as to accurately play the corresponding musical works. Sheet music is not only a visual symbol system, but also a bridge of communication between musicians and composers, ensuring the accurate reproduction of music.

[0003] Sheet music usually consists of several single sheets of paper. When playing music, musicians turn to the corresponding sheet music according to the progress of the music. In the prior art, the sheet music can be placed on a music stand, but the music score board and the support frame on the music stand are of an integral structure; in addition, some music stands can only be floor-standing, with a large volume and usually heavy. However, in actual applications, especially during performances during marches, the above structures are not convenient to carry, and the viewing angle of the music score board is not easy to adjust. Utility Model Content

[0004] An embodiment of the present application provides a music stand, which is provided with an adjustment component with at least one degree of freedom, and the performer can adjust the viewing angle of the music score board according to the situation. Secondly, in some embodiments, the adjustment component includes an inner sleeve and an adjustment nut; the detachable connection between the music score board and the support frame can be realized through the adjustment nut, and the tightness inside the inner sleeve can also be controlled, which is convenient for adjusting the angle of the music score board on the support frame. In addition, the music stand can also be adapted to different fixing components according to different musical instruments, making the performance of the performer more free. Especially during some performances during marches, the music stand can be fixed on the musical instrument or the performer's arm.

[0005] An embodiment of the present application provides a music stand, which includes a music score board and a support frame; the support frame includes an adjustment component with at least one degree of freedom; the music score board is connected to the adjustment component; the adjustment component is used to adjust the angle of the music score board on the support frame.

[0006] In some embodiments, the adjustment component includes a first fitting and a second fitting; the first end of the first fitting is rotatably connected to the first end of the second fitting.

[0007] In some embodiments, the first fitting is provided with a cavity; the first end of the second fitting is rotatably installed in the cavity.

[0008] In some embodiments, the first fitting includes a tubular inner sleeve provided with the cavity, an outer thread is provided on an outer wall of the inner sleeve, and an opening extending in an axial direction thereof is provided on the outer wall of an end portion of the inner sleeve; and an adjusting nut provided with an inner thread; wherein, the adjusting nut is in threaded engagement with the inner sleeve, and the opening and closing of the port of the inner sleeve are controlled by rotating the adjusting nut in different directions.

[0009] In some embodiments, the second fitting includes a ball head, the ball head includes a connecting rod and a sphere provided at a first end of the connecting rod, and the sphere is selectively installed in the cavity.

[0010] In some embodiments, the support frame further includes a fixing assembly, a first end of the fixing assembly is connected to the adjusting assembly, and a second end of the fixing assembly is connected to a carrier for carrying the music stand.

[0011] In some embodiments, the fixing assembly includes a fixing plate and a fastening belt, a bending portion is provided on a first side of the fixing plate, and at least one hole is provided on a second side; the fastening belt is restricted between the hole and the bending portion;

[0012] The adjusting assembly is connected to the fixing plate.

[0013] In some embodiments, an end portion of the bending portion is an upwardly curved hook-like structure.

[0014] In some embodiments, an end portion of the hook-like structure is provided with an upwardly curved flanging.

[0015] In some embodiments, the fixing assembly includes an arc-shaped plate and a locking belt; a first end of the arc-shaped plate is connected to a first end of the locking belt, and a buckle is provided at a second end of the arc-shaped plate; a plurality of locking holes are provided on the locking belt; the tightness of the locking belt is adjusted by the cooperation connection of different locking holes and the buckle;

[0016] The adjusting assembly is connected to an outer arc surface of the arc-shaped plate.

[0017] In some embodiments, a gasket is provided on an inner arc surface of the arc-shaped plate.

[0018] In some embodiments, a through hole is provided at a first end of the arc-shaped plate;

[0019] A first end of the gasket is connected to a first end of the locking belt, and a second end of the locking belt can pass through the through hole.

[0020] In some embodiments, the fixing assembly includes a first clamping plate, a second clamping plate, a bolt and a nut;

[0021] The first clamping plate is fixedly connected to the first end of the bolt, and the nut is installed at the second end of the bolt; the second clamping plate is provided with a through hole through which the bolt can pass; the second clamping plate is installed on the bolt through the through hole and is restricted between the first clamping plate and the nut;

[0022] The nut is used to adjust the distance between the first clamping plate and the second clamping plate and control the clamping force of the fixing assembly.

[0023] In some embodiments, the fixing assembly includes a clamping plate, and a clamping interface is provided at the first end of the clamping plate, and the clamping interface is used to be clamped with the carrier;

[0024] The adjusting assembly is connected to the second end of the clamping plate.

[0025] In some embodiments, one end of the adjusting assembly is provided with a telescopic structure with an adjustable length.

[0026] In some embodiments, one end of the adjusting assembly is provided with a flexible rod.

[0027] In some embodiments, the music score board includes a first side; a second side, which is disposed opposite to the first side; at least one through hole, the at least one through hole being close to the first side of the music score board; and a page ring, which is installed on the through hole, and the page ring is configured to limit the music score on the music score board.

[0028] In some embodiments, the page ring is configured to be selectively opened or closed.

[0029] In some embodiments, the music score board further includes loose-leaf pages, and the music score can be selectively placed into or taken out from the loose-leaf pages; the page ring is configured to be selectively opened and can mount the loose-leaf pages on the page ring.

[0030] Compared with the prior art, in the embodiments of the present application, the music stand is provided with an adjusting assembly for adjusting the music score board, and the adjusting assembly has the ability to adjust at least one degree of freedom, and the performer can adjust the viewing angle of the music score board according to the situation. In addition, in some embodiments, the adjusting assembly includes an inner sleeve and an adjusting nut; the detachable connection between the music score board and the support frame can be realized by adjusting the nut, and the tightness of the inner sleeve can also be controlled, which is convenient for adjusting the angle of the music score board on the support frame. Third, the music stand can also be adapted to different fixing assemblies according to different musical instruments, making the performance of the performer more free. Especially in some performances during marching, the music stand can be fixed on the musical instrument or the performer's arm. Description of the Drawings

[0031] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof are used to explain this application and do not constitute an improper limitation of this application. Among them:

[0032] Figure 1 It is a schematic structural diagram of a music stand for some embodiments;

[0033] Figure 2 It is a schematic structural diagram of an embodiment of an adjustment component;

[0034] Figure 3 It is for Figure 2 The cross-sectional structural diagram of;

[0035] Figure 4 It is an exploded view of another embodiment of the adjustment component;

[0036] Figure 5 It is for Figure 4 The schematic structural diagram of the adjustment component of with a ball head installed;

[0037] Figure 6 It is for Figure 5 The cross-sectional structural diagram of;

[0038] Figure 7 It is for Figure 5 The exploded view of;

[0039] Figure 8 It is for Figure 4 The exploded view of the adjustment component of with a columnar connecting rod installed;

[0040] Figure 9 It is for Figure 8 The cross-sectional structural diagram of the assembled state of the adjustment component of;

[0041] Figure 10 It is a schematic structural diagram of a music stand for some embodiments, which includes a first fixing structure;

[0042] Figure 11 It is a schematic structural diagram of a music stand for some embodiments, which includes a second fixing structure;

[0043] Figure 12 It is an exploded view of the second fixing structure for some embodiments;

[0044] Figure 13 It is a fixing component and a telescopic component for some embodiments;

[0045] Figure 14 It is a fixing component and a flexible rod for some embodiments;

[0046] Figure 15 It is a schematic structural diagram of a third fixing component for some embodiments;

[0047] Figure 16 Schematic structural diagram of the fourth fixing component for some embodiments;

[0048] Figure 17 Schematic implementation diagram of the adjustment component for some embodiments;

[0049] Figure 18 Schematic structural diagram of a music stand with a rotating shaft structure for some embodiments;

[0050] Figure 19 Schematic structural diagram of the music score board for some embodiments;

[0051] Figure 20 Schematic structural diagram of a music score board with loose-leaf and music scores installed for some embodiments;

[0052] Figure 21 Schematic structural diagram of the loose-leaf and music scores for some embodiments;

[0053] Figure 22 Schematic diagram of the music score board and partial enlarged view for some embodiments.

[0054] Explanation of reference numerals: 10 - music score board; 101 - panel; 102 - through hole; 103 - first side; 104 - second side; 105 - page ring; 106 - first half ring; 107 - second half ring; 108 - lock head; 109 - page clip; 20 - adjustment component; 201 - first base; 2011 - cavity; 202 - ball head; 2021 - sphere; 2022 - connecting rod; 203 - second base; 2031 - inner sleeve; 2032 - accommodation cavity; 204 - adjusting nut; 205 - ball bowl; 206 - columnar connecting rod; 207 - rotating shaft structure; 30 - fixing component; 301 - first fixing structure; 3011 - fixing plate; 3012 - fastening belt; 3013 - bending part; 3014 - flanging; 3015 - perforated; 3016 - horizontal plate; 302 - second fixing structure; 3021 - arc plate; 3022 - lock; 3023 - locking belt; 3024 - lock hole; 3025 - gasket; 3026 - telescopic structure; 3027 - flexible rod; 303 - third fixing structure; 3031 - first clamping plate; 3032 - second clamping plate; 3033 - bolt; 3034 - nut; 3035 - flexible rod; 304 - fourth fixing structure; 3041 - clamping plate; 3042 - bayonet; 3043 - flexible rod; 40 - support frame; 50 - music score; 60 - loose-leaf. Detailed implementation manners

[0055] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than a limitation of the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0056] In the description of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application rather than requiring the present application to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application. The terms "connected", "connected to", and "disposed" used in the present application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate member. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0057] One or more examples of the present application are shown in the accompanying drawings. The detailed description uses numerical and alphabetical labels to refer to features in the drawings. Similar or like labels in the drawings and the description have been used to refer to similar or like parts of the present application. As used herein, terms such as "first", "second", and "third" can be used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0058] As Figure 1 shown, an embodiment of the present application provides a music stand, which includes a music score board 10 and a support frame 40. The support frame 40 includes an adjustment assembly 20 with at least one degree of freedom. The adjustment assembly 20 is disposed at the first end of the support frame 40. The music score board 10 is connected to the adjustment assembly 20, and the viewing angle of the music score board 10 is adjusted through the adjustment assembly 20.

[0059] As Figure 2 and Figure 3 shown, in some embodiments, the adjustment assembly 20 includes a first base 201 and a ball head 202. The ball head 202 includes a connecting rod 2022 and a sphere 2021 disposed at the first end of the connecting rod 2022. A cavity 2011 is provided at the first end of the first base 201, and the sphere 2021 is rotatably mounted in the cavity 2011 of the first base 201. The second end of the connecting rod 2022 is connected to the first end of the support frame 40, and the second end of the base is connected to the music score board 10.

[0060] In some embodiments, there is an interference fit between the spherical body 2021 of the ball head 202 and the inner wall of the cavity 2011 of the first base 201, so that the spherical body 2021 has a damping effect when rotating in the cavity 2011.

[0061] As Figure 4 shown, in some embodiments, the adjusting assembly 20 includes a second base 203. A tubular inner sleeve 2031 is provided at the first end of the second base 203, and the second end of the second base 203 is fixedly connected to the music score board 10. The inner sleeve 2031 is provided with a cavity, the outer wall of the inner sleeve 2031 is provided with an external thread, and an opening extending along its axial direction is provided on the outer wall of the end of the inner sleeve 2031. An adjusting nut 204 is installed outside the inner sleeve 2031, and the adjusting nut 204 is threadedly connected to the inner sleeve 2031. Among them, during the tightening process of the adjusting nut 204 and the inner sleeve 2031, the opening of the inner sleeve 2031 gradually closes, so that the inner diameter of the port at the second end of the inner sleeve 2031 gradually becomes smaller, and the volume of the cavity decreases accordingly; conversely, the inner diameter of the port at the second end of the inner sleeve 2031 gradually becomes larger, and the volume of the cavity increases accordingly.

[0062] As Figure 5 and Figure 6 shown, in some embodiments, a rotatable ball head 202 is installed on the inner sleeve 2031. The spherical body 2021 of the ball head 202 is arranged in the cavity 2032, and the connecting rod 2022 of the ball head 202 is connected to the first end of the support frame 40. The detachable connection between the music score board 10 and the support frame 40 can be realized through the adjusting nut 204; the tightness of the ball head 202 in the cavity 2032 can also be controlled, which is convenient for adjusting the angle of the music score board 10 on the support frame 40 and locking the state of the music score board 10 when it is at the above angle.

[0063] As Figure 7 shown, in some embodiments, a ball bowl 205 is provided at the bottom of the cavity 2032. The ball bowl 205 is provided with a spherical concave surface, and the spherical concave surface faces the spherical body 2021 of the ball head 202. The ball bowl 205 can make the rotation of the spherical body 2021 of the ball head 202 in the inner sleeve 2031 smoother.

[0064] As Figure 8 and Figure 9As shown, in some embodiments, a rotatable columnar connecting rod 206 is installed in the inner sleeve 2031. Among them, the first end of the columnar connecting rod 206 is arranged inside the cavity 2032 and can rotate relative to the inner sleeve 2031; the second end of the columnar connecting rod 206 is connected to the support frame 40. By adjusting the nut 204, a detachable connection between the music score board 10 and the support frame 40 can be achieved; the tightness of the first end of the columnar connecting rod 206 in the cavity 2032 can also be controlled, which is convenient for adjusting the angle of the music score board 10 on the support frame 40 and locking the state of the music score board 10 when it is at the above angle.

[0065] The support frame 40 can select different structural solutions in different application environments.

[0066] In some embodiments, the support frame 40 includes a support rod. The first end of the support rod is connected to the adjustment component 20, and the second end of the support rod is provided with a base. In an environment similar to a concert hall, the support rod can be selectively placed on the ground, and the performer can adjust the best angle of the music score board 10 according to the required perspective.

[0067] In addition, in some on-the-go performances, the support frame 40 needs to be installed on a moving object or structure. Therefore, in some embodiments, the support frame 40 includes a fixing component 30, and the fixing component 30 is arranged at the second end of the support frame 40.

[0068] As Figure 10 As shown, in some embodiments, the fixing component 30 includes a first fixing structure 301. The first fixing structure 301 includes a fixing plate 3011 and a fastening belt 3012. A bending part is arranged on the first side of the fixing plate 3011, and two belt holes 2015 are arranged on the second side. The second end of the connecting rod 2022 of the ball head 202 is fixedly installed on the fixing plate 3011. Among them, a cross plate 3016 is arranged on the belt hole 3015, and the cross plate 3016 divides the belt hole 2015 into two independent holes. The end of the fastening belt 3012 will pass through one hole and then pass through the other hole to achieve the fixed installation between the fastening belt 3012 and the belt hole 3015. The two belt holes 3015 are symmetrically arranged about the center of the second side of the fixing plate 3011. The end of the bending part is an upwardly curved hook-like structure. The first end of the fixing belt is fixedly installed on one of the belt holes 3015, and the second end of the fixing belt passes above the bending part and is fixedly installed on the other belt hole 3015.

[0069] In some embodiments, a further upwardly curved flange 3014 is further arranged at the end of the hook-like structure to reduce the risk of the fastening belt 3012 falling off from the bending part.

[0070] In some applications, the first fixing structure 301 can be fixedly installed on the arm of the player, and the player can change the angle of the adjusting component 20 as needed, thereby adjusting the angle of the music score board 10 installed on the adjusting component 20.

[0071] As Figure 11 shown, in some embodiments, the fixing component 30 includes a second fixing structure 302. The second fixing structure 302 includes an arc-shaped plate 3021 and a locking belt 3023. The second end of the connecting rod 2022 of the ball head 202 is fixedly installed on the outer arc surface of the arc-shaped plate 3021. The first end of the arc-shaped plate 3021 is connected to the first end of the locking belt 3023, and a lock catch 3022 is provided at the second end of the arc-shaped plate 3021. A plurality of lock holes 3024 are provided on the locking belt 3023, and the plurality of lock holes 3024 are distributed along the length direction of the locking belt 3023. The second fixing structure 302 adjusts the fixing strength of the locking belt 3023 through the cooperation connection of different lock holes 3024 and the lock catch 3022.

[0072] In some embodiments, a gasket 3025 is provided on the inner arc surface of the arc-shaped plate 3021. The gasket 3025 can not only provide buffering during fixation but also increase the friction during fixation. In some embodiments, as Figure 12 shown, a through hole 102 is provided at the first end of the arc-shaped plate 3021. The first end of the gasket 3025 is connected to the first end of the locking belt 3023, and the second end of the locking belt 3023 can pass through the through hole 102.

[0073] In some applications, the second fixing structure 302 can be fixedly installed on a wind instrument, and the player can change the angle of the adjusting component 20 as needed, thereby adjusting the angle of the music score board 10 installed on the adjusting component 20.

[0074] As Figure 13 shown, in some embodiments, an adjustable-length telescopic structure 3026 is selectively provided at the second end of the connecting rod 2022 of the ball head 202. The first end of the telescopic structure 3026 is connected to the outer arc surface of the arc-shaped plate 3021, and the second end is connected to the second end of the connecting rod 2022 of the ball head 202.

[0075] As Figure 14 shown, in some embodiments, a bendable flexible rod 3027 is selectively provided at the second end of the connecting rod 2022 of the ball head 202. The first end of the flexible rod 3027 is connected to the outer arc surface of the arc-shaped plate 3021, and the second end is connected to the second end of the connecting rod 2022 of the ball head 202.

[0076] As Figure 15As shown, in some embodiments, the fixing component 30 includes a third fixing structure 303. The third fixing structure 303 includes a first clamping plate 3031 and a second clamping plate 3032. The second end of the connecting rod 2022 of the ball head 202 is connected to the first end of the first clamping plate 3031 through a flexible rod 3027. One side of the first clamping plate 3031 near its first end is provided with a bolt 3033, and the first end of the bolt 3033 is fixedly connected to the first clamping plate 3031. A through hole 102 is provided on the second clamping plate 3032, and the through hole 102 is close to the first end of the second clamping plate 3032. When the first clamping plate 3031 and the second clamping plate 3032 are combined, the two ends of the first clamping plate 3031 are correspondingly combined with the two ends of the second clamping plate 3032. The bolt 3033 will pass through the through hole 102, and then an adjusting nut 3034 is installed at the second end of the bolt 3033. The nut 3034 is used to adjust the distance between the second end of the first clamping plate 3031 and the second end of the second clamping plate 3032, so as to control the clamping force of the third fixing structure 303.

[0077] As Figure 16 shown, in some embodiments, the fixing component 30 includes a fourth fixing structure 304. The fourth fixing structure 304 includes a clamping plate 3041, and a clamping interface is provided at the first end of the clamping plate 3041. The second end of the connecting rod 2022 of the ball head 202 is connected to the second end of the clamping plate 3041 through a flexible rod 3027. The fourth fixing structure 304 is clamped to the carrier through the clamping interface.

[0078] As Figure 17 shown, in some embodiments, the adjusting component 20 includes a third base and a ball head 202. A cavity is provided inside the third base, and the sphere 2021 of the ball head 202 is rotatably installed in the cavity. The third base is connected to the fixing component 30, and the connecting rod 2022 of the ball head 202 is connected to the music score board 10.

[0079] As Figure 18 shown, in some embodiments, the adjusting component 20 can be implemented by a rotating shaft structure 207. The top of the rotating shaft structure 207 can adjust the horizontal angle, and the bottom of the rotating shaft structure 207 can rotate in the horizontal direction.

[0080] As Figure 19 shown, the music score board 10 includes a panel 101. The panel 101 includes a first side 103 and a second side 104, and the first side 103 and the second side 104 are arranged opposite to each other. Two through holes 102 are provided on the panel 101. Both of the two through holes 102 are close to the first side 103 and are arranged separately along the length direction of the first side 103. Each through hole 102 is provided with a page ring 105 that can be selectively opened. The second side 104 of the panel 101 is connected to the adjusting component 20.

[0081] In some embodiments, the music score 50 is provided with holes through which the page rings 105 can pass, and the music score 50 can be selectively placed on the panel 101 through the page rings 105.

[0082] As Figure 19 and Figure 20 shown, in some embodiments, the music score board 10 further includes a loose-leaf 60. The loose-leaf 60 is provided with holes through which the page rings 105 can pass, and the loose-leaf 60 can be selectively placed on the panel 101 through the page rings 105. The music score 50 can be placed into or taken out from the loose-leaf 60, and the music score 50 is restricted on the panel 101 through the loose-leaf 60.

[0083] As Figure 21 shown, in some embodiments, the page ring 105 includes a first half-ring 106 and a second half-ring 107. The first end of the first half-ring 106 and the first end of the second half-ring 107 are rotatably connected, and the second end of the first half-ring 106 and the second end of the second half-ring 107 can be selectively opened or closed. In some embodiments, the second ends of the first half-ring 106 and the second half-ring 107 are provided with lock heads 108 that can be locked with each other.

[0084] As Figure 19 and Figure 20 shown, in some embodiments, the panel 101 is provided with at least one page clip 109 for restricting the state of the music score 50 on the panel 101. In some embodiments, the page clip 109 is an elastic strip structure. The first end portion of the page clip 109 is restricted on the panel 101, and the second end portion of the page clip 109 can be selectively close to or away from the surface of the panel 101.

[0085] The above are only some embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A music stand, characterized in that, it includes a music score board (10) and a support frame (40); the support frame (40) includes an adjustment component (20) with at least one degree of freedom; the music score board (10) is connected to the adjustment component (20); the adjustment component (20) is used to adjust the angle of the music score board (10) on the support frame (40).

2. The music stand according to claim 1, characterized in that, the adjustment component (20) includes a first fitting and a second fitting; the first end of the first fitting is rotatably connected to the first end of the second fitting.

3. The music stand according to claim 2, characterized in that, the first fitting is provided with a cavity; the first end of the second fitting is rotatably installed in the cavity.

4. The music stand according to claim 3, characterized in that, the first fitting includes: a tubular inner sleeve (2031), the inner sleeve (2031) is provided with the cavity, the outer wall of the inner sleeve (2031) is provided with an external thread, and an opening is provided on the outer wall of the end of the inner sleeve (2031) along its axial direction; and an adjusting nut (204), the adjusting nut (204) is provided with an internal thread; wherein, the adjusting nut (204) is in threaded fit connection with the inner sleeve (2031), and the opening and closing of the port of the inner sleeve (2031) are controlled by the adjusting nut (204) in different rotation directions.

5. The music stand according to claim 3 or 4, characterized in that, the second fitting includes a ball head (202), the ball head (202) includes a connecting rod (2022) and a sphere (2021) provided at the first end of the connecting rod (2022), and the sphere (2021) is selectively installed in the cavity.

6. The music stand according to claim 1, characterized in that, the support frame (40) further includes a fixing component (30), the first end of the fixing component (30) is connected to the adjustment component (20), and the second end of the fixing component (30) is connected to a carrier for carrying the music stand.

7. The music stand according to claim 6, characterized in that, the fixing component (30) includes a fixing plate (3011) and a fastening belt (3012), a bending part (3013) is provided on the first side of the fixing plate (3011), and at least one hole (3015) is provided on the second side; the fastening belt (3012) is restricted between the hole (3015) and the bending part; the adjustment component (20) is connected to the fixing plate (3011); or The fixing component (30) includes an arc-shaped plate (3021) and a locking belt (3023); the first end of the arc-shaped plate (3021) is connected to the first end of the locking belt (3023), and a lock catch (3022) is provided at the second end of the arc-shaped plate (3021); a plurality of lock holes (3024) are provided on the locking belt (3023); the fixing component (30) adjusts the tightness of the locking belt (3023) through the cooperation connection of different lock holes (3024) and the lock catch (3022); the adjusting component (20) is connected to the outer arc surface of the arc-shaped plate (3021); or The fixing component (30) includes a first clamping plate (3031), a second clamping plate (3032), a bolt (3033) and a nut (3034); the first clamping plate (3031) is fixedly connected to the first end of the bolt (3033), and the nut (3034) is installed at the second end of the bolt (3033); the second clamping plate (3032) is provided with a through hole (102) through which the bolt (3033) can pass; the second clamping plate (3032) is installed on the bolt (3033) through the through hole (102) and is restricted between the first clamping plate (3031) and the nut (3034); the nut (3034) is used to adjust the distance between the first clamping plate (3031) and the second clamping plate (3032) and control the clamping force of the fixing component (30); or The fixing component (30) includes a clamping plate (3041), and a clamping interface is provided at the first end of the clamping plate (3041), and the clamping interface is used for clamping with the carrier; the adjusting component (20) is connected to the second end of the clamping plate (3041).

8. The music stand according to claim 7, wherein A gasket (3025) is provided on the inner arc surface of the arc-shaped plate (3021); or / and A through hole (102) is provided at the first end of the arc-shaped plate (3021); the first end of the gasket (3025) is connected to the first end of the locking belt (3023), and the second end of the locking belt (3023) can pass through the through hole (102).

9. The music stand according to claim 1, wherein One end of the adjusting component (20) is provided with a telescopic structure (3026) with adjustable length; or One end of the adjusting component (20) is provided with a flexible rod (3027).

10. The music stand according to claim 1, wherein The music score board (10) on which a music score (50) is placed, the music score board (10) includes: A first side (103); A second side (104) which is arranged opposite to the first side (103); At least one through hole (102) which is close to the first side (103) of the music score board (10); A page ring (105) which is installed on the through hole (102); and Loose leaf (60), into which the sheet music (50) can be selectively placed or taken out from the loose leaf (60); Wherein, the page ring (105) is configured to be selectively opened and the loose leaf (60) can be mounted on the page ring (105).

11. The music stand according to claim 7, characterized in that The end of the bending part (3013) is an upwardly curved hook-like structure.

12. The music stand according to claim 11, characterized in that The end of the hook-like structure is provided with an upwardly curved flange (3014).

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