CN112951182B

CN112951182B - Rotatable music support

Info

Publication number: CN112951182B
Application number: CN202110224390.0A
Authority: CN
Inventors: 刘琳
Original assignee: Yantai Engineering and Technology College
Current assignee: Yantai Yidian Software Technology Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2022-06-03
Anticipated expiration: 2041-03-01
Also published as: CN112951182A

Abstract

The invention discloses a rotatable music support, which comprises a base plate and universal wheels arranged at the bottom of the base plate, wherein a connecting seat is arranged at the top of the base plate, a second driving motor is fixedly arranged at the top of the connecting seat, a frame is fixedly connected with the driving end of the second driving motor, and a third driving motor is fixedly arranged in the frame. This rotatable music support, through the arc slider, the arc slide rail, the arc baffle, the welded seat, the cushion, the winding is rolled up, the depressed groove, the flange, spacing round, driving sheave one, driving sheave two uses with the cooperation of winding, thereby can realize adjusting between the horizontal state of placing and the slope state of placing of horizontal backup pad, make its applicable musical instrument that transversely places in the needs, perhaps slope, vertical musical instrument of placing, make placing that the support can be applicable to different musical instruments, and then great improvement the suitability of its use, its structure is optimized more, design is more reasonable.

Description

Rotatable music support

Technical Field

The invention relates to a support, in particular to a rotatable music support.

Background

Music is an artistic form and cultural activity, and its medium is sound organized on time. Its basic elements include high and low, strong and weak, duration and tone. These basic elements are combined with each other to form the common "form factor" of music, such as: rhythm, melody, harmony, and force, speed, style, melody, texture, etc. The form factor constituting music is a means for expressing music. Different types of music may emphasize or ignore certain elements thereof. Music is played using a variety of instruments and vocal techniques, and is classified into instrumental music, vocal music (e.g., a song with no instrumental accompaniment), and works combining singing and musical instruments. Musical instruments generally refer to instruments that can play a tone rhythm in various ways. Generally, they are classified into national musical instruments and western musical instruments.

This application improves to prior art, the music support among the prior art, and its function is comparatively single, generally only supports to place single musical instrument, simultaneously, can only be single state and place the musical instrument, for example can only be horizontal or vertical placing the musical instrument, can't carry out corresponding adjustment to it according to the musical instrument of difference, and the suitability is not good, and its structure is optimized inadequately, the design is reasonable inadequately.

Disclosure of Invention

It is an object of the present invention to provide a rotatable music stand that solves the problems set forth in the background above.

In order to achieve the purpose, the invention provides the following technical scheme:

the rotatable music support comprises a base plate and a universal wheel installed at the bottom of the base plate, wherein a connecting seat is arranged at the top of the base plate, a driving motor II is fixedly installed at the top of the connecting seat, a frame is fixedly connected with the driving end of the driving motor II, a driving motor III is fixedly installed in the frame, a threaded rod is fixedly connected with the driving end of the driving motor III, sliding rods are fixedly installed on two sides of the top of the frame, a transverse supporting plate is fixedly connected with the top of each sliding rod, a threaded sleeve is installed on the outer wall of each threaded rod in a threaded manner, sliding sleeves matched with the sliding rods are fixedly installed on two sides of each threaded sleeve in a sliding manner, each sliding sleeve is connected with the corresponding sliding rod in a sliding manner, a rotating installation seat I is fixedly installed on one side of each sliding sleeve, two sliding ways I and two sliding ways II are arranged at the top of each transverse supporting plate in a penetrating manner, and a guide rod is fixedly installed in the sliding ways I, the outer wall of the guide rod is sleeved with two guide blocks, the top of each guide block is fixedly connected with a clamping plate, the middle part of the bottom of the transverse support plate is fixedly provided with a connecting lug matched with the two phases of the slide way, the bottom of the connecting lug is fixedly provided with a rotating installation II, a push-pull plate is rotatably installed between the rotating installation seat I and the rotating installation II, one side of the top of the base plate is fixedly provided with a welding seat, the top of the welding seat is fixedly provided with an arc-shaped guide plate, the top of the arc-shaped guide plate is fixedly provided with two arc-shaped slide rails, the bottom of the connecting seat is fixedly provided with an arc-shaped slide block matched with the arc-shaped slide rails, the arc-shaped slide block is slidably connected with the arc-shaped slide rails, one side of the welding seat is fixedly provided with two convex plates, two limiting wheels are rotatably installed between the opposite surfaces of the two convex plates, and the top of the arc-shaped guide plate is fixedly provided with a traction wheel I, the other side fixed mounting of arc baffle has driving sheave two, the top of base plate and the one side fixed mounting who is located the welding seat and keeps away from the connecting seat have the cushion, the top fixed mounting of cushion has driving motor one, driving end fixedly connected with winding book of driving motor one, the inner chamber fixed mounting of winding book has the winding, and the one end of winding loops through driving sheave two, driving sheave one and two spacing between the wheel back and arc slider fixed connection, one the depressed groove has been seted up at the top of pinch-off blades.

As a still further scheme of the invention: one side of the guide block is penetrated with a sliding hole matched with the guide rod, and the guide block is connected with the guide rod in a sliding mode through the sliding hole.

As a still further scheme of the invention: the top of horizontal backup pad is provided with the music book and places the structure, the music book is placed the structure and is included the mounting panel, the middle part fixed mounting at mounting panel top has the regulation structure, the expansion end fixedly connected with connecting plate of regulation structure, the equal fixed mounting in both sides at connecting plate top has carbon steel return bend one, the top fixedly connected with transverse baffle of carbon steel return bend one, the rear fixed mounting at transverse baffle top has vertical baffle, the positive equal fixed mounting in both sides of transverse baffle has carbon steel return bend two.

As a still further scheme of the invention: the adjusting structure comprises a sleeve, the sleeve is connected with an adjusting column through a round hole formed in the top of the sleeve in a sliding mode, the front face of the adjusting column is provided with a plurality of threaded holes in an equidistant penetrating mode, the sleeve is provided with butterfly bolts through positioning holes formed in the upper portion of the back face of the sleeve, and the butterfly bolts are in threaded connection with the threaded holes.

As a still further scheme of the invention: two positioning holes are formed in the top of the transverse supporting plate, and positioning rods matched with the positioning holes are fixedly mounted on two sides of the bottom of the mounting plate.

As a still further scheme of the invention: the both sides at sleeve top all run through and have seted up the spout, and the spout is linked together with the round hole, the equal fixed mounting in both sides of adjusting the post has the draw runner with spout looks adaptation, and sliding connection between draw runner and the spout, the bottom fixedly connected with blend stop of adjusting the post.

As a still further scheme of the invention: the top fixed mounting of connecting seat has circular slide rail, slidable mounting has the support column rather than the looks adaptation on the circular slide rail, and the top of support column and the bottom fixed connection of frame.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention uses the matching of a connecting seat, a second driving motor, a supporting column, a third driving motor, a frame, a threaded rod, a sliding sleeve, a threaded sleeve, a clamping plate, a transverse supporting plate, a first rotating mounting seat, a push-pull plate, a second rotating mounting seat, a guide block, a connecting convex block, a circular sliding rail, a first sliding rail, a guide rod and a second sliding rail to place a musical instrument on the top of the transverse supporting plate, then the third driving motor drives the threaded rod to rotate, the threaded sleeve moves downwards under the vertical transmission action of the threaded rod and the threaded sleeve, further drives the sliding sleeves on two sides to move downwards, the first rotating mounting seat moves along with the first driving plate, further drives the push-pull plate to move downwards and pulls the two second rotating mounting seats to the middle part to enable the two clamping plates to move oppositely, thereby clamping the musical instrument between the two clamping plates to be fixed, otherwise, the threaded sleeve moves upwards to contact and fix the musical instrument, the fixed mode of mechanical type need not artifical manual operation, and then is convenient for carry out quick installing and removing to the musical instrument to in the use to the support, and two rotatory drive frames of driving motor rotate, and then can rotate fixed musical instrument, go on its angle of placing, so that the position that the musical instrument was placed more is applicable to the user and uses.

2. According to the invention, the arc-shaped sliding block, the arc-shaped sliding rail, the arc-shaped guide plate, the welding seat, the cushion block, the winding coil, the concave groove, the convex plate, the limiting wheel, the first traction wheel, the second traction wheel and the winding piece are matched for use, so that the transverse placement state and the inclined placement state of the transverse support plate can be adjusted, the support can be suitable for musical instruments needing to be transversely placed or musical instruments which are obliquely and vertically placed, the support can be suitable for placing different musical instruments, the use applicability of the support is further greatly improved, and the structure is more optimized and the design is more reasonable.

3. The invention uses the matching of the positioning hole, the mounting plate, the positioning rod, the adjusting structure, the connecting plate, the first carbon steel elbow, the second carbon steel elbow, the transverse baffle, the vertical baffle, the sleeve, the barrier strip, the adjusting column, the threaded hole, the sliding groove, the butterfly bolt and the sliding strip, when the music book placing structure is mounted, the positioning rod is clamped into the positioning hole, the music book is placed on the top of the transverse baffle, the music book leans against the vertical baffle, then the two pairs of music books which are opened are fixed by bending the carbon steel elbow, so that the bracket has the effect of placing the music book, the two pairs of music books are fixed by the carbon steel elbow, the pages of the opened music book are prevented when the music book is used, meanwhile, the first bent carbon steel elbow can adjust the placing angle of the music book, the music book is in the best state and is suitable for different users, and the butterfly bolt is screwed out from the inside of the threaded hole, then upwards pull the regulation post, make butterfly bolt aim at the not screw hole of co-altitude after, fix the screw hole to can realize adjusting the whole height of structure, further make it be applicable to different users, convenient to use, the result of use is good.

Drawings

FIG. 1 is a schematic view of a rotatable music stand;

FIG. 2 is a side view of a transverse support plate in the rotatable music stand;

FIG. 3 is an enlarged view of the rotatable music stand at A of FIG. 1;

FIG. 4 is a top view of a transverse support plate in the rotatable music stand;

FIG. 5 is an enlarged view of the rotatable music stand at B of FIG. 1;

fig. 6 is a schematic structural view of a music score placing structure in a rotatable music stand;

fig. 7 is a cross-sectional view of a sleeve in a rotatable music stand.

In the figure: the device comprises a base plate 1, universal wheels 2, arc-shaped sliding blocks 3, arc-shaped sliding rails 4, arc-shaped guide plates 5, welding seats 6, cushion blocks 7, winding rolls 8, a first driving motor 9, a connecting seat 10, a second driving motor 11, a supporting column 12, a third driving motor 13, a frame 14, a threaded rod 15, a sliding rod 16, a sliding sleeve 17, a threaded sleeve 18, a clamping plate 19, a transverse supporting plate 20, a music book placing structure 21, a first rotating mounting seat 22, a push-pull plate 23, a second rotating mounting 24, a guide block 25, a connecting lug 26, a circular sliding rail 27, a first slideway 28, a positioning hole 29, a guide rod 30, a second slideway 31, a concave groove 32, a convex plate 33, a limiting wheel 34, a first traction wheel 35, a second traction wheel 36, a mounting plate 37, a positioning rod 38, an adjusting structure 39, a connecting plate 40, a first carbon steel bent pipe 41, a second carbon steel bent pipe 42, a transverse baffle 43, a vertical baffle 44, a sleeve 45, a baffle 46, an adjusting column 47, a winding roll 8, a first driving roll 9, a second driving roll 9, a second driving roll, a driving roll, Threaded hole 48, runner 49, wing bolt 50, slide 51.

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.

Referring to fig. 1 to 7, in the embodiment of the present invention, the rotatable music stand includes a base plate 1 and a universal wheel 2 installed at the bottom of the base plate 1, a connecting seat 10 is installed at the top of the base plate 1, a second driving motor 11 is fixedly installed at the top of the connecting seat 10, a frame 14 is fixedly connected to a driving end of the second driving motor 11, a third driving motor 13 is fixedly installed inside the frame 14, a driving end of the third driving motor 13 penetrates through the top of the inner wall of the frame 14 and extends to the outside of the frame 14, a threaded rod 15 is fixedly connected to a driving end of the third driving motor 13, slide rods 16 are fixedly installed at both sides of the top of the frame 14, a transverse support plate 20 is fixedly connected to the top of the slide rod 16, the top of the threaded rod 15 is rotatably connected to the bottom of the transverse support plate 20, a threaded sleeve 18 is installed on the outer wall of the threaded rod 15, and sliding sleeves 17 matched with the slide rods 16 are fixedly installed at both sides of the threaded sleeve 18, a sliding sleeve 17 is connected with a sliding rod 16 in a sliding manner, a first rotating installation seat 22 is fixedly installed at one side of the sliding sleeve 17, two first sliding ways 28 and two second sliding ways 31 are arranged at the top of a transverse support plate 20 in a penetrating manner, the second sliding ways 31 are positioned between the first sliding ways 28, a guide rod 30 is fixedly installed inside the first sliding ways 28, two guide blocks 25 are sleeved on the outer wall of the guide rod 30, a clamping plate 19 is fixedly connected to the top of each guide block 25, a connecting lug 26 matched with the second sliding ways 31 is fixedly installed at the middle part of the bottom of the transverse support plate 20, a second rotating installation seat 24 is fixedly installed at the bottom of the connecting lug 26, a push-pull plate 23 is rotatably installed between the first rotating installation seat 22 and the second rotating installation seat 24, a welding seat 6 is fixedly installed at one side of the top of a base plate 1, an arc-shaped guide plate 5 is fixedly installed at the top of the welding seat 6, two arc-shaped sliding rails 4 are fixedly installed at the top of the arc-shaped guide plate 5, an arc-shaped sliding block 3 matched with the arc-shaped sliding rails 4 is fixedly installed at the bottom of a connecting seat 10, the arc-shaped sliding block 3 is connected with the arc-shaped sliding rail 4 in a sliding manner, one side of the welding seat 6 is fixedly provided with two convex plates 33, two limiting wheels 34 are rotatably arranged between opposite surfaces of the two convex plates 33, the top of the arc-shaped guide plate 5 is fixedly provided with a first traction wheel 35, the other side of the arc-shaped guide plate 5 is fixedly provided with a second traction wheel 36, a cushion block 7 is fixedly arranged at the top of the base plate 1 and positioned at one side of the welding seat 6, which is far away from the connecting seat 10, the top of the cushion block 7 is fixedly provided with a first driving motor 9, the driving end of the first driving motor 9 is fixedly connected with a winding roll 8, the inner cavity of the winding roll 8 is fixedly provided with a winding piece, one end of the winding piece sequentially passes through the second traction wheel 36, the first traction wheel 35 and the two limiting wheels 34 and then is fixedly connected with the arc-shaped sliding block 3, the top of one clamping plate 19 is provided with a concave groove 32, one side of the guide block 25 is provided with a sliding hole matched with the guide rod 30 in a penetrating manner, the guide block 25 is connected with the guide rod 30 in a sliding mode through a sliding hole, a music book placing structure 21 is arranged on the top of the transverse support plate 20, the music book placing structure 21 comprises a mounting plate 37, an adjusting structure 39 is fixedly arranged in the middle of the top of the mounting plate 37, a connecting plate 40 is fixedly connected with the movable end of the adjusting structure 39, carbon steel bent pipes 41 are fixedly arranged on two sides of the top of the connecting plate 40, a transverse baffle 43 is fixedly connected with the top of each carbon steel bent pipe 41, a vertical baffle 44 is fixedly arranged behind the top of each transverse baffle 43, carbon steel bent pipes 42 are fixedly arranged on two sides of the front of each transverse baffle 43, each adjusting structure 39 comprises a sleeve 45, each sleeve 45 is connected with an adjusting column 47 in a sliding mode through a round hole formed in the top of each sleeve 45, a plurality of threaded holes 48 are formed in the front of each adjusting column 47 in an equidistant penetrating mode, and butterfly bolts 50 are arranged on each sleeve 45 through a positioning hole formed in the upper portion of the back of each sleeve, and butterfly bolt 50 and screw hole 48 threaded connection, two locating holes 29 have been seted up at the top of horizontal backup pad 20, the equal fixed mounting in both sides of mounting panel 37 bottom has the locating lever 38 with locating hole 29 looks adaptation, the both sides at sleeve 45 top all run through and have seted up spout 49, and spout 49 is linked together with the round hole, the equal fixed mounting in both sides of adjusting post 47 has the draw runner 51 with spout 49 looks adaptation, and sliding connection between draw runner 51 and spout 49, the bottom fixedly connected with blend stop 46 of adjusting post 47, the top fixed mounting of connecting seat 10 has circular slide rail 27, sliding mounting has the support column 12 rather than the looks adaptation on circular slide rail 27, and the top of support column 12 and the bottom fixed connection of frame 14.

The working principle of the invention is as follows:

when the device is used, a musical instrument is placed on the top of the transverse supporting plate 20, then the driving motor III 13 drives the threaded rod 15 to rotate, under the vertical transmission action of the threaded rod 15 and the threaded sleeve 18, the threaded sleeve 18 moves downwards, further the sliding sleeves 17 on two sides move downwards, the rotating mounting seat I22 moves along with the threaded sleeve, so that the push-pull plate 23 is driven to move downwards, the two rotating mounting plates 24 are pulled to the middle part, the two clamping plates 19 move oppositely, the musical instrument is clamped between the two clamping plates 19 to be fixed, on the contrary, the threaded sleeve 18 moves upwards, the musical instrument is fixed in a contact mode, a mechanical fixing mode is adopted, manual operation is not needed, further the musical instrument is convenient to be rapidly assembled and disassembled, the support is convenient to use, and the driving motor II 11 rotates to drive the frame 14 to rotate, further the fixed musical instrument can rotate, the placing angle of the horizontal support plate is adjusted, so that the position where the musical instrument is placed is more suitable for a user to use, the horizontal support plate 20 is in a horizontally placed state in a normal state, when the horizontal support plate 20 needs to be placed in an inclined or vertical state, the first drive motor 9 drives the winding roll 8 to rotate, the winding piece can be wound inside the winding roll 8, the winding piece pulls the arc-shaped sliding block 3 to slide upwards along the arc-shaped sliding rail 4 in the winding piece winding process, the connecting seat 10 is placed in an inclined state, the horizontal support plate 20 is in an inclined state, the horizontal placing state and the inclined placing state of the horizontal support plate 20 can be adjusted, the horizontal support plate is suitable for the musical instrument needing to be placed horizontally or the musical instrument needing to be placed vertically, the support can be suitable for placing of different musical instruments, and the use applicability of the horizontal support plate is greatly improved, the structure is optimized, the design is reasonable, when the music score placing structure 21 is installed, the positioning rod 38 is clamped into the positioning hole 29, a music score is placed at the top of the transverse baffle 43, the music score is backed against the vertical baffle 44, then the turned music score is fixed through the bent carbon steel bent pipe two 42, so that the support has the effect of placing the music score, the carbon steel bent pipe two 42 is used for fixing the music score, the turned music score is prevented from turning pages when in use, meanwhile, the bent carbon steel bent pipe one 41 can adjust the placing angle of the music score book, so that the music score book is in the best state and is suitable for different users, the butterfly bolt 50 is screwed out from the inside of the threaded hole 48, then the adjusting column 47 is pulled upwards, the butterfly bolt 50 is aligned with the threaded holes 48 with different heights, the threaded hole 48 is fixed, and the whole height of the adjusting structure 39 can be adjusted, further making it suitable for different users, convenient to use, excellent in use effect.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. Rotatable music support, universal wheel (2) including base plate (1) and base plate (1) bottom installation, its characterized in that: the top of the base plate (1) is provided with a connecting seat (10), the top of the connecting seat (10) is fixedly provided with a driving motor II (11), the driving end of the driving motor II (11) is fixedly connected with a frame (14), the inside of the frame (14) is fixedly provided with a driving motor III (13), the driving end of the driving motor III (13) is fixedly connected with a threaded rod (15), two sides of the top of the frame (14) are fixedly provided with a sliding rod (16), the top of the sliding rod (16) is fixedly connected with a transverse supporting plate (20), the outer wall of the threaded rod (15) is provided with a threaded sleeve (18), two sides of the threaded sleeve (18) are fixedly provided with a sliding sleeve (17) matched with the sliding rod (16), the sliding sleeve (17) is in sliding connection with the sliding rod (16), one side of the sliding sleeve (17) is fixedly provided with a rotating mounting seat I (22), the top of the transverse supporting plate (20) is provided with a first slide (28) and a second slide (31) in a penetrating manner, the inside of the first slide (28) is fixedly provided with a guide rod (30), the outer wall of the guide rod (30) is sleeved with two guide blocks (25), the top of each guide block (25) is fixedly connected with a clamping plate (19), the middle of the bottom of the transverse supporting plate (20) is fixedly provided with a connecting lug (26) matched with the second slide (31), the bottom of each connecting lug (26) is fixedly provided with a second rotating installation (24), a push-pull plate (23) is rotatably installed between the first rotating installation seat (22) and the second rotating installation (24), one side of the top of the base plate (1) is fixedly provided with a welding seat (6), the top of the welding seat (6) is fixedly provided with an arc-shaped guide plate (5), and the top of the arc-shaped guide plate (5) is fixedly provided with two arc-shaped slide rails (4), the bottom of the connecting seat (10) is fixedly provided with an arc-shaped sliding block (3) matched with the arc-shaped sliding rail (4), the arc-shaped sliding block (3) is connected with the arc-shaped sliding rail (4) in a sliding manner, one side of the welding seat (6) is fixedly provided with two convex plates (33), two limiting wheels (34) are rotatably arranged between opposite surfaces of the two convex plates (33), the top of the arc-shaped guide plate (5) is fixedly provided with a first traction wheel (35), the other side of the arc-shaped guide plate (5) is fixedly provided with a second traction wheel (36), the top of the base plate (1) and one side, far away from the connecting seat (10), of the welding seat (6) is fixedly provided with a cushion block (7), the top of the cushion block (7) is fixedly provided with a first driving motor (9), the driving end of the first driving motor (9) is fixedly connected with a winding roll (8), and the inner cavity of the winding roll (8) is fixedly provided with a winding piece, one end of the winding piece is fixedly connected with the arc-shaped sliding block (3) after passing through the space between the second traction wheel (36), the first traction wheel (35) and the two limiting wheels (34), and the top of one clamping plate (19) is provided with a concave groove (32).

2. The rotatable music stand of claim 1, wherein: one side of the guide block (25) penetrates through a sliding hole matched with the guide rod (30), and the guide block (25) is connected with the guide rod (30) in a sliding mode through the sliding hole.

3. The rotatable music stand of claim 1, wherein: the top of horizontal backup pad (20) is provided with the music book and places structure (21), the music book is placed structure (21) and is included mounting panel (37), the middle part fixed mounting at mounting panel (37) top has regulation structure (39), the expansion end fixedly connected with connecting plate (40) of regulation structure (39), the equal fixed mounting in both sides at connecting plate (40) top has carbon steel return bend (41), the top fixedly connected with horizontal baffle (43) of carbon steel return bend (41), the rear fixed mounting at horizontal baffle (43) top has vertical baffle (44), the equal fixed mounting in both sides that horizontal baffle (43) are positive has carbon steel return bend two (42).

4. A rotatable music stand according to claim 3, wherein: adjust structure (39) and include sleeve (45), round hole sliding connection that sleeve (45) was seted up through its top has regulation post (47), the front of adjusting post (47) is the equidistance and runs through and sets up a plurality of screw holes (48), locating hole that sleeve (45) were seted up through its back top is provided with butterfly bolt (50), and butterfly bolt (50) and screw hole (48) threaded connection.

5. The rotatable music stand of claim 3, wherein: two positioning holes (29) are formed in the top of the transverse supporting plate (20), and positioning rods (38) matched with the positioning holes (29) are fixedly mounted on two sides of the bottom of the mounting plate (37).

6. The rotatable music stand of claim 4, wherein: both sides at sleeve (45) top all run through and have seted up spout (49), and spout (49) are linked together with the round hole, the equal fixed mounting in both sides of adjusting post (47) has draw runner (51) with spout (49) looks adaptation, and sliding connection between draw runner (51) and spout (49), the bottom fixedly connected with blend stop (46) of adjusting post (47).

7. The rotatable music stand of claim 1, wherein: the top fixed mounting of connecting seat (10) has circular slide rail (27), slidable mounting has support column (12) rather than the looks adaptation on circular slide rail (27), and the top of support column (12) and the bottom fixed connection of frame (14).