Vocal music score automatic page turning device

Abstract

The invention relates to the technical field of music auxiliary devices, in particular to a vocal music score automatic page turning device which comprises page turning equipment installed on a music stand and used for turning pages of a music score, and the page turning equipment is composed of a supporting structure, a driving structure, an adsorption structure and a paper pressing structure; the driving structure comprises an electric telescopic rod, a sliding seat and a guide cover which are installed on the supporting structure, an automatic lubricating piece is arranged on the sliding seat, a connecting rod is rotatably installed on the sliding seat, and a shifting plate is installed at one end of the connecting rod in a threaded mode. Single telescopic motion is converted into composite motion of translation and turning, an additional driving motor is omitted, negative pressure adsorption is coupled with mechanical motion, after music pages are adsorbed, the shifting plate turns the pages through composite motion of pushing and lifting, the pages are prevented from drooping or drifting away, meanwhile, the single telescopic motion enables the sliding base and the check block to be squeezed, lubricating agents are automatically released, and the music score page turning efficiency is improved. Clamping or abrasion caused by insufficient lubrication is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of music auxiliary devices, in particular to an automatic page turning device for vocal music scores. Background Art

[0002] Typically, when a performer is playing a piece, they must flip the sheet music as the music progresses. This is a significant inconvenience and hassle for the performer, and thus, how to easily flip the sheet music without disrupting the performance is a challenge that performers are eager to address. However, most music stands currently available on the market are fixed and lack an automatic page-turning function. Therefore, performers must manually flip the pages of the music sheet at any time during the performance. This frequent flipping of the pages often causes significant inconvenience for the performer, affecting not only the fluency of the performance but also the performer's mood and emotions.

[0003] After searching, Chinese invention patent publication number CN110001233A discloses "an automatic page-turning device for vocal music scores, comprising a paper-pushing device, a paper-lifting board, a support plate, a base, and a paper-pressing device. A paper-lifting board is provided at the upper end of the support plate, one end of the paper-lifting board is rotatably connected to the middle part of the support plate, a top column is provided between the paper-lifting board and the support plate, a first spring is connected to the lower end of the top column, a paper-pushing device is provided on one side of the paper-lifting board, the paper-pushing device is connected to one side of the support plate, a paper-pressing device is provided on the other side of the support plate, the lower end of the support plate is connected to the base, a foot switch is provided on the base, and the foot switch is connected to the paper-pushing device."

[0004] The above patent also has the following defects: the reliability of the page turning action is low. The application relies on a single paper picking roller to push the edge of the paper horizontally, and lacks adsorption or gripping force on the paper. At the same time, it lacks automatic lubrication function. Due to the long time of vocal music training or performance, the long-term driving makes the paper picking roller move discontinuously or get stuck, and it is very easy to slip or be unable to be pushed, resulting in page turning failure. It also causes noise pollution, and dry friction produces a harsh squeaking sound, which is extremely abrupt in a quiet music performance scene.

[0005] Therefore, it is urgent to improve the page turning device to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic page-turning device for vocal music scores, which converts a single telescopic motion into a compound action of translation and flipping, eliminating the need for an additional drive motor. At the same time, negative pressure adsorption is coupled with mechanical motion, and the paddle block pushes the second plug cylinder to directly generate negative pressure, without the need for an independent vacuum pump. The suction force is strictly synchronized with the page-turning action. In addition, the straight section of the first slide groove ensures the accuracy of the initial position of the paddle plate, and the spiral section of the second slide groove realizes the controllable flipping of the connecting rod. After the music page is adsorbed, the paddle plate turns the page with a compound action of pushing and lifting to prevent the page from sagging or floating. At the same time, the single telescopic motion causes the extrusion action of the slide and the block to automatically release lubricant, realizing movement and maintenance, reducing jamming or wear caused by insufficient lubrication, and extending the life of the equipment.

[0007] In order to achieve the above-mentioned object, the main technical solution adopted by the present invention includes a page turning device installed on a music stand for turning pages of music scores, the page turning device consisting of a supporting structure, a driving structure, an adsorption structure and a paper pressing structure;

[0008] The driving structure includes an electric telescopic rod, a slide and a guide cover installed on the supporting structure, the slide is provided with an automatic lubricating part, a connecting rod is rotatably installed on the slide, a dial plate is threadedly installed on one end of the connecting rod, a connecting part that slides with the guide cover is provided on the outside of the connecting rod, a first linkage part that is linked to the adsorption structure is provided on the connecting rod, and a second linkage part that is linked to the paper pressing structure is also provided on the connecting rod;

[0009] The adsorption structure includes a first fixing frame and a second fixing frame, and the first fixing frame and the second fixing frame are both provided with a suction nozzle connected to the first linkage member;

[0010] The paper pressing structure comprises a mounting plate, and a pressing plate is rotatably mounted on the inner side of the mounting plate.

[0011] Preferably, the music stand is composed of a plate body and a frame body, the plate body and the frame body are welded together, and the supporting structure is installed on the outer wall of the frame body by bolts.

[0012] The beneficial effects of adopting the above-mentioned further scheme are: the welding process enables the plate and the frame to form a rigid integrated structure, eliminating the connection gaps and looseness risks of traditional assembled music stands, and achieving enhanced anti-deformation ability. When used for a long time or when heavy music scores are placed, the welding structure can prevent the plate from sagging or the frame from twisting, ensuring the precise operation of the page-turning device. When the performer's foot pedal or the music stand is collided by external force, the welding structure reduces resonance and prevents the music score from shifting or the page turning from malfunctioning.

[0013] Preferably, the support structure includes a mounting frame fixed on the outer wall of the frame body, a guide rail is fixed on the side of the mounting frame away from the frame body, and a slideway is provided on the guide rail.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the mounting frame, guide rail and slide form a rigid force transmission path, ensuring that the thrust of the electric telescopic rod is converted into the linear motion of the slide without energy waste; the straightness of the guide rail and the adaptive lubrication of the slide automatically compensate for the slight errors caused by welding deformation of the music stand, and maintain the consistency of the page turning action.

[0015] Preferably, the slide is slidably installed in a slideway, a stopper that abuts against an automatic lubricating component is fixed on an inner wall of one side of the slideway, and the output end of the electric telescopic rod is fixed to an outer wall of the slide.

[0016] The beneficial effect of adopting the above further solution is that the installation of the stop block can not only cooperate with the extension and retraction of the electric telescopic rod to realize the driving of the automatic lubricating part, but also limit the sliding seat.

[0017] Preferably: the automatic lubricating component includes a lubrication pad fixed on the side wall of the slide and a first plug cylinder fixed inside the slide, a first plug rod extending outside the first plug cylinder is provided inside the first plug cylinder, an abutment block abutting against the stopper is fixed at the other end of the first plug rod, a first return spring is fixed between the first plug cylinder and the abutment block, two check tubes are installed on the side wall of the first plug cylinder, and an infusion tube is fixed at the end of the two check tubes, two nozzles connected to the lubrication pad are fixed inside the slide, and a connecting tube is fixed between the two nozzles.

[0018] The beneficial effect of adopting the above-mentioned further scheme is that when the slide moves, the abutment block is squeezed by the stop block, pushing the first plug rod to compress the first plug cylinder, and the lubricant is accurately delivered to the lubrication pad through the check pipe and the nozzle, and the guide rail is continuously coated with the lubrication pad, achieving the advantage of maintenance-free, and can automatically replenish lubrication during performances, adapting to long-term continuous work.

[0019] Preferably: the guide cover is fixed to the outer wall of the guide rail, the connecting member includes a mounting sleeve fixed to the outer surface of the end of the connecting rod away from the shift plate, a shaft rod is fixed to the side wall of the mounting sleeve, and a ball is rotatably installed on the other end of the shaft rod, and a first slide groove and a second slide groove adapted to the ball are opened inside the guide cover, and the adjacent ends of the first slide groove and the second slide groove are connected, wherein the first slide groove is arranged in a straight line and the second slide groove is arranged in a spiral shape, and in conjunction with the extension and retraction of the electric telescopic rod, the ball rolls along the first slide groove and the second slide groove, so that the shift plate is automatically flipped.

[0020] The beneficial effect of adopting the above further solution is: through the combination of the first slide groove straight section and the second slide groove spiral section, the single linear motion of the electric telescopic rod is converted into a linear and rotational composite motion of the connecting rod. The ball completes the initial positioning in the first slide groove straight section. After entering the second slide groove spiral section, the connecting rod rotates at a fixed angular velocity, ensuring that the flip angle of the paddle is precisely controllable.

[0021] Preferably: the first linkage member includes a second plug cylinder fixed on the outer wall of the guide rail, a piston block is slidably provided inside the second plug cylinder, a second plug rod extending to the outside of the second plug cylinder is fixed on the outer wall of the piston block, an abutment plate is fixed to the other end of the second plug rod, a shift block sliding with the outer wall of the guide rail is rotatably installed on the outer surface of the connecting rod, the shift block abuts against the abutment plate when the connecting rod is displaced, a second return spring is fixed between the abutment plate and the second plug cylinder, and a check valve is provided on the side of the second plug cylinder.

[0022] The beneficial effect of adopting the above-mentioned further scheme is: when the connecting rod is displaced, the shift block pushes the abutment plate, driving the piston block to slide in the second plug cylinder, instantly generating negative pressure through the check valve, driving the suction nozzle of the adsorption structure to adsorb the music page. After the music page is adsorbed, the shift plate turns the page with a combined action of pushing and lifting to prevent the page from sagging or floating away, thereby realizing the advantages of fully automated, low-damage and high adaptability of music page turning.

[0023] Preferably: the first fixing frame and the second fixing frame are equipped with a three-way pipe connected to the two suction nozzles and the check valve, the first fixing frame has a U-shaped shape, the second fixing frame has an L-shaped shape, the first fixing frame and the second fixing frame are both equipped with a connecting block for fixing the two suction nozzles, and the first fixing frame and the second fixing frame are equipped with an adjustment rod.

[0024] The beneficial effects of adopting the above further solution are: the connecting block serves as a fixed interface for the suction nozzle, realizing modular installation of the suction nozzle, facilitating quick replacement or maintenance; the introduction of the adjustment rod allows fine adjustment of the position or angle of the fixing frame, thereby accurately controlling the working position of the suction nozzle, adapting to the suction requirements of different workpieces, and improving the versatility and operational flexibility of the system;

[0025] At the same time, the combined design of the double fixed frame disperses the force on the suction nozzle during operation, reduces vibration or deviation through rigid connection, and ensures the reliability of the adsorption process. The complementarity of the U-shaped and L-shaped structures enhances the deformation resistance of the overall structure and extends the service life of the equipment.

[0026] Preferably: the mounting plate is fixed to the bottom side of the plate body, and connecting shafts rotatably connected to the mounting plate are fixed on the outer walls on both sides of the pressure plate, and a torsion spring is arranged between the outer surface of the two connecting shafts and the outer wall of the mounting plate, and the pressure plate is elastically connected to the mounting plate through the arrangement of the torsion spring and the connecting shaft.

[0027] The beneficial effect of adopting the above-mentioned further scheme is that the pressure plate forms a rotating pair with the mounting plate through the connecting shaft, and combined with the elastic force of the torsion spring, it can automatically adapt to the structure of the pressed object, ensuring that the pressure plate maintains uniform contact with the surface of the object, and improving the stability of the clamping effect. The energy storage characteristics of the torsion spring enable the pressure plate to automatically return to its initial position after the external force is released, simplifying the operation process, and is particularly suitable for working conditions that require frequent opening and closing.

[0028] Preferably: the second linkage member includes a pull rope installed between the pressure plate and the end of the connecting rod, a connecting ear is fixed on the side of the pressure plate away from the plate body, a connecting rod is rotatably installed inside the connecting ear, the other end of the connecting rod is fixed to the end of the pull rope, and a guide wheel for guiding the pull rope is installed on the frame.

[0029] The beneficial effect of adopting the above-mentioned further scheme is that the pull rope, as a flexible transmission element, can bypass obstacles or adapt to non-linear transmission paths, solving the interference problem of rigid connecting rods in complex mechanical layouts. It is especially suitable for compact equipment or scenarios requiring multi-axis linkage. The guidance of the pull rope by the guide wheel realizes the decoupling of the pressure plate and the connecting rod movement, reduces the transmission of mechanical vibration or error, and improves the smoothness of the pressure plate movement and the positioning accuracy.

[0030] The present invention has at least the following beneficial effects:

[0031] 1. The present invention uses dual-form chutes, such as linear and spiral, to convert a single telescopic motion into a combined translation and flipping action, eliminating the need for an additional drive motor. Simultaneously, negative pressure adsorption is coupled with mechanical motion, and the paddle pushes the second plug cylinder to directly generate negative pressure, eliminating the need for an independent vacuum pump. Suction and page-turning are strictly synchronized. Furthermore, the linear segment of the first chute ensures the precise initial position of the paddle, while the spiral segment of the second chute enables controlled flipping of the connecting rod. After the sheet music page is adsorbed, the paddle flips the page with a combined push-and-lift action, preventing the page from sagging or drifting. By modifying the chute curvature, the page-turning angle can be adjusted to accommodate different paper thicknesses or binding methods, achieving the advantages of fully automated, low-damage, and highly adaptable sheet music page turning.

[0032] 2. The present invention achieves a breakthrough from passive maintenance to active maintenance. The device automatically releases lubricant through the squeezing action of the slide and the block, realizing maintenance during movement, reducing jamming or wear caused by insufficient lubrication, and extending the life of the equipment. The guide rail is continuously coated with a lubricating pad to achieve the advantage of maintenance-free. It can automatically replenish lubrication during performance and adapt to long-term continuous work.

[0033] 3. This invention relies on air pressure differentials to grasp sheet music pages. The suction nozzle uses the local vacuum negative pressure generated by the piston to absorb the edge of the paper, achieving a non-contact or extremely small contact area force transmission method. The force is generated by the flow of air molecules, the direct collision or strong friction of non-rigid mechanical parts, and the negative pressure absorption is used to achieve silent page turning.

[0034] In addition, by generating negative pressure through the first linkage, when the shift block pushes the abutment plate as the connecting rod moves, the piston block is pulled outward from the second plug cylinder. The outward movement of the piston will increase the volume inside the cylinder, causing the internal air pressure to drop instantly to form negative pressure and vacuum. At this time, the check valve only allows fluids such as air to flow in a single direction during the adsorption stage. During the adsorption stage, when the piston is pulled out to generate negative pressure, the air at the suction nozzle will be sucked into the interior of the second plug cylinder through the three-way pipe to balance the pressure. At this time, the speed and flow of the inhaled airflow are relatively smooth under the carefully designed suction nozzle and small-aperture pipe, and turbulent noise is not easy to be generated. During the release stage, the check valve automatically closes to block the reverse airflow, ensuring that when the adsorption structure is released, the residual gas in the second plug cylinder will not form turbulent reverse high-speed airflow to blow the music score. The closing of the check valve effectively prevents this noise and achieves turbulence-free release.

[0035] 4. In the present invention, the suction nozzle absorbs the edge of the sheet of music with a small and gentle contact area. By gently sucking the paper instead of grabbing, patting or bumping it, the suction force generated is sufficient to lift the paper to assist in turning the page and prevent it from sagging and floating away. The distribution of the two suction nozzles ensures that the force is evenly distributed on the suction point, avoiding the tearing or friction sound caused by local stress concentration. The negative pressure adsorption of the present application mainly plays a role in the initial stage of the page turning action, gently lifting the edge of the paper, creating favorable conditions for the subsequent push and lift compound action of the paddle. At this time, the paper has been lifted, and the paddle only needs to guide it to turn over, reducing the friction resistance with the paper below. The turning action of the paddle is controlled by the spiral slide in the guide cover. This is a relatively smooth rotational motion that rotates at a fixed angular velocity, reducing the noise generated by rapid slapping or impact.

[0036] 5. In the present invention, the connecting block serves as a fixed interface for the suction nozzle, realizing modular installation of the suction nozzle and facilitating quick replacement or maintenance. The introduction of the adjustment rod allows fine-tuning of the position or angle of the fixing frame, thereby precisely controlling the working position of the suction nozzle and adapting to the adsorption requirements of different workpieces, thereby improving the versatility and operational flexibility of the system. Pneumatic adsorption uses negative pressure to adsorb the edges of the sheet music pages, and the page-turning action is almost silent, eliminating interference for players of instruments such as piano and violin that require high concentration. In recording studios or live performances, the sound of page turning is prevented from being captured by the microphone, thereby improving the purity of the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 Schematic diagram of the structure of the music stand of the present invention;

[0040] Figure 3 This is a schematic diagram of the overall structure of the page turning device of the present invention;

[0041] Figure 4 Schematic diagram of the structure of the support structure of the present invention;

[0042] Figure 5 Schematic diagram of the driving structure of the present invention;

[0043] Figure 6 This is a schematic diagram of the inner structure of the guide cover of the present invention;

[0044] Figure 7 Schematic diagram of the structure of the first linkage member of the present invention;

[0045] Figure 8 Schematic diagram of the structure of the adsorption structure of the present invention;

[0046] Figure 9 Schematic diagram of the structure of the paper pressing structure of the present invention;

[0047] Figure 10 It is a structural schematic diagram of the automatic lubricating part of the present invention.

[0048] In the figure, 1, music stand; 11, plate body; 12, frame body; 2, page turning device; 3, supporting structure; 31, mounting frame; 32, guide rail; 33, slide; 4, driving structure; 41, electric telescopic rod; 42, slide seat; 421, lubricating pad; 422, automatic lubricating part; 4221, first plug cylinder; 4222, nozzle; 4223, first plug rod; 4224, abutment block; 4225, first return spring; 4226, check pipe; 4227, connecting pipe; 43, connecting rod; 44, paddle plate; 45, guide cover; 451, first slide groove; 452, second slide groove; 4 6. Shift block; 47. First linkage member; 471. Second plug cylinder; 472. Piston block; 473. Second plug rod; 474. Second return spring; 475. Abutment plate; 48. Pull rope; 49. Guide wheel; 410. Mounting sleeve; 411. Shaft rod; 412. Ball; 413. Stop block; 5. Adsorption structure; 51. First fixing frame; 52. Second fixing frame; 53. Adjusting rod; 54. Connecting block; 55. Suction nozzle; 56. Tee pipe; 6. Paper pressing structure; 61. Mounting plate; 62. Pressing plate; 63. Connecting shaft; 64. Torsion spring; 65. Connecting ear; 66. Connecting rod. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0050] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0051] Example 1:

[0052] like Figures 1-9 As shown, in this embodiment, an automatic page-turning device for vocal music scores includes a page-turning device 2 mounted on a music stand 1 for turning pages of a music score. The music stand 1 is composed of a plate 11 and a frame 12, which are welded together, and a support structure 3 is bolted to the outer wall of the frame 12. It should be noted that the welding process forms a rigid, integrated structure between the plate 11 and the frame 12, eliminating the connection gaps and loosening risks of conventional assembled music stands 1 and achieving enhanced deformation resistance. The welded structure prevents sagging of the plate 11 or twisting of the frame 12 during long-term use or when heavy music scores are placed, ensuring the precise operation of the page-turning device 2. When a performer's foot pedals or the music stand 1 are impacted by external forces, the welded structure reduces resonance, preventing music score displacement or malfunction of page turning.

[0053] The page-turning device 2 consists of a support structure 3, a drive structure 4, an adsorption structure 5, and a paper-pressing structure 6. The support structure 3 includes a mounting bracket 31 fixed to the outer wall of the music stand 12. A guide rail 32 is fixed to the side of the mounting bracket 31 facing away from the music stand 12, and a slideway 33 is provided on the guide rail 32. The mounting bracket 31, guide rail 32, and slideway 33 form a rigid force transmission path, ensuring that the thrust of the drive structure 4 is converted into linear motion of the slide 42 without wasting energy. The linearity of the guide rail 32, combined with the adaptive lubrication of the slide 42, automatically compensates for minor errors caused by welding deformation of the music stand 1, maintaining consistent page-turning motion.

[0054] In order to realize the driving of the page turning device, the driving structure 4 includes an electric telescopic rod 41, a slide 42 and a guide cover 45 installed on the supporting structure 3. The slide 42 is rotatably installed with a connecting rod 43, and a dial plate 44 is threadedly installed on one end of the connecting rod 43. The outside of the connecting rod 43 is provided with a connecting part that slides with the guide cover 45. The connecting rod 43 is provided with a first linkage part 47 that is linked to the adsorption structure 5, and the connecting rod 43 is also provided with a second linkage part that is linked to the paper pressing structure 6; wherein, the slide 42 is slidably installed in the slide 33, and a block 413 that abuts against the automatic lubricating part 422 is fixed on the inner wall of one side of the slide 33, and the output end of the electric telescopic rod 41 is fixed to the outer wall of the slide 42.

[0055] To achieve the page turning action, the guide cover 45 is fixed to the outer wall of the guide rail 32, and the connecting part includes a mounting sleeve 410 fixed to the outer surface of the end of the connecting rod 43 away from the dial plate 44. A shaft rod 411 is fixed to the side wall of the mounting sleeve 410, and a ball 412 is rotatably installed on the other end of the shaft rod 411. A first slide groove 451 and a second slide groove 452 adapted to the ball 412 are provided inside the guide cover 45, and the adjacent ends of the first slide groove 451 and the second slide groove 452 are connected, wherein the first slide groove 451 is arranged in a straight line and the second slide groove 452 is arranged in a spiral shape. In conjunction with the extension and retraction of the electric telescopic rod 41, the ball 412 rolls along the first slide groove 451 and the second slide groove 452, so that the dial plate 44 is automatically flipped. Specifically, the combination of the linear section of the first chute 451 and the helical section of the second chute 452 converts the linear motion of the electric telescopic rod 41 into a combined linear and rotational motion of the connecting rod 43. The ball 412 is initially positioned in the linear section of the first chute 451. After entering the helical section of the second chute 452, the connecting rod 43 rotates at a constant angular velocity, ensuring a precisely controlled tilt angle of the shift plate 44. The shift plate 44 rotates 180 degrees. The electric telescopic rod 41 can be driven remotely, or a control device can be mounted near the foot for better user control.

[0056] The first linkage 47 comprises a second plug cylinder 471 fixed to the outer wall of the guide rail 32. A piston block 472 is slidably mounted within the second plug cylinder 471. A second plug rod 473 is fixed to the outer wall of the piston block 472, extending beyond the second plug cylinder 471. A contact plate 475 is fixed to the other end of the second plug rod 473. A shift block 46 is rotatably mounted on the outer surface of the connecting rod 43, sliding against the outer wall of the guide rail 32. As the shift block 46 moves with the connecting rod 43, it abuts against the contact plate 475. A second return spring 474 is secured between the contact plate 475 and the second plug cylinder 471. A check valve is also mounted on the side of the second plug cylinder 471. The check valve only allows fluid, such as air, to flow in a single direction during the adsorption phase and automatically closes during the recovery phase, blocking reverse airflow. This ensures that when the adsorption structure 5 is released, residual gas within the second plug cylinder 471 does not form turbulent flow, preventing airflow from blowing across the sheet music and causing it to shift or accidentally turn pages.

[0057] In order to improve the page turning effect, the adsorption structure 5 includes a first fixing frame 51 and a second fixing frame 52. The first fixing frame 51 and the second fixing frame 52 are both provided with a suction nozzle 55 connected to the first linkage member 47; the first fixing frame 51 and the second fixing frame 52 are installed with a three-way pipe 56 connected to the two suction nozzles 55 and the check valve. The first fixing frame 51 has a U-shaped shape, and the second fixing frame 52 has an L-shaped shape. The first fixing frame 51 and the second fixing frame 52 are both installed with a connecting block 54 for fixing the two suction nozzles 55, and the first fixing frame 51 and the second fixing frame 52 are installed with an adjusting rod 53. Specifically, when the connecting rod 43 is displaced, the shift block 46 pushes the abutment plate 475, driving the piston block 472 to slide in the second plug cylinder 471, instantly generating negative pressure through the check valve, driving the suction nozzle 55 of the adsorption structure 5 to adsorb the music page. After the music page is adsorbed, the shift plate 44 turns the page with a combined action of pushing and lifting to prevent the page from sagging or floating, thereby realizing the advantages of fully automated, low-damage, and high adaptability of music page turning.

[0058] It should be noted that the connecting block 54 serves as a fixed interface for the suction nozzle 55, realizing modular installation of the suction nozzle 55, facilitating quick replacement or maintenance. The introduction of the adjustment rod 53 allows for fine-tuning of the position or angle of the fixing frame, thereby precisely controlling the working position of the suction nozzle 55, adapting to the suction requirements of different workpieces, and improving the versatility and operational flexibility of the system.

[0059] At the same time, the combined design of the double fixing frame disperses the force on the suction nozzle 55 during operation, reduces vibration or offset through rigid connection, ensures the reliability of the adsorption process, and the complementarity of the U-shaped and L-shaped structures enhances the deformation resistance of the overall structure and extends the service life of the equipment.

[0060] Notably, the nozzle 55 is made of flexible silicone. Its microscopic surface texture creates a "quasi-seal" with the sheet music, reducing turbulent noise caused by air leakage. Furthermore, the silicone's viscoelasticity absorbs localized stress, preventing paper fibers from breaking due to excessive stretching, thereby eliminating high-frequency noise. Pneumatic suction uses negative pressure to hold the edges of the sheet music, eliminating distractions for players of instruments requiring intense concentration, such as piano and violin. It also prevents the sound of turning pages from being captured by microphones in recording studios or live performances, enhancing the purity of sound quality.

[0061] To achieve the fixation of the sheet music, the paper pressing structure 6 includes a mounting plate 61, on the inner side of which a pressing plate 62 is rotatably mounted. The mounting plate 61 is fixed to the bottom side of the plate body 11, and connecting shafts 63 rotatably connected to the mounting plate 61 are fixed to the outer walls on both sides of the pressing plate 62. Torsion springs 64 are provided between the outer surfaces of the two connecting shafts 63 and the outer wall of the mounting plate 61, and the pressing plate 62 is elastically connected to the mounting plate 61 through the arrangement of the torsion springs 64 and the connecting shafts 63. The pressing plate 62 forms a rotating pair with the mounting plate 61 through the connecting shafts 63. Combined with the elastic force of the torsion springs 64, it can automatically adapt to the structure of the pressed object, ensuring that the pressing plate 62 maintains uniform contact with the surface of the object, and improving the stability of the pressing effect. The energy storage characteristics of the torsion springs 64 enable the pressing plate 62 to automatically return to its initial position after the external force is released, simplifying the operation process and being particularly suitable for working conditions that require frequent opening and closing.

[0062] In order to realize the linkage between page turning and sheet music fixation, the second linkage part includes a pull rope 48 installed between the pressure plate 62 and the end of the connecting rod 43. A connecting ear 65 is fixed to the side of the pressure plate 62 away from the plate body 11. A connecting rod 66 is rotatably installed inside the connecting ear 65. The other end of the connecting rod 66 is fixed to the end of the pull rope 48. A guide wheel 49 for guiding the pull rope 48 is installed on the frame 12. As a flexible transmission element, the pull rope 48 can bypass obstacles or adapt to non-linear transmission paths, solving the interference problem of the rigid connecting rod 43 in complex mechanical layouts. It is particularly suitable for compact equipment or scenarios requiring multi-axis linkage. The guide wheel 49 guides the pull rope 48, thereby realizing the decoupling of the movement of the pressure plate 62 and the connecting rod 43, reducing the transmission of mechanical vibration or error, and improving the smoothness and positioning accuracy of the pressure plate 62.

[0063] Example 2:

[0064] like Figure 5 and Figure 10As shown, an automatic lubricating part 422 is provided on the slide 42, and the automatic lubricating part 422 includes a lubricating pad 421 fixed on the side wall of the slide 42 and a first plug cylinder 4221 fixed inside the slide 42, and a first plug rod 4223 extending outward is provided inside the first plug cylinder 4221, and the other end of the first plug rod 4223 is fixed with an abutting block 4224 abutting against the stopper 413, and a first return spring 4225 is fixed between the first plug cylinder 4221 and the abutting block 4224, and two check tubes 4226 are installed on the side wall of the first plug cylinder 4221, and the ends of the two check tubes 4226 are fixed with infusion tubes, and two nozzles 4222 connected to the lubricating pad 421 are fixed inside the slide 42, and a connecting pipe 4227 is fixed between the two nozzles 4222. Specifically, when the slide 42 moves, the abutment block 4224 is squeezed by the stopper 413, pushing the first plug rod 4223 to compress the first plug cylinder 4221, and accurately delivering the lubricant to the lubricating pad 421 through the check tube 4226 and the nozzle 4222. The lubricating pad 421 continuously applies lubrication to the guide rail 32, achieving the advantage of being maintenance-free, capable of automatically replenishing lubrication during performances, and adapting to long-term continuous operation. In addition, the installation of the stopper 413 can not only cooperate with the extension and retraction of the electric telescopic rod 41 to realize the drive of the automatic lubricating part 422, but also limit the position of the slide 42. The interior of the slide 42 is hollow, and a liquid storage tank is installed inside the slide 42 to facilitate the use of the automatic lubricating part 422. A maintenance shell is detachably installed on the outer wall of the slide 42.

[0065] It should be noted that the dynamic contact between abutment block 4224 and stopper 413 triggers the lubrication cycle, supplying lubricant only when slide 42 is in motion, reducing lubricant consumption to that of traditional drip lubrication. Dual check tubes 4226 ensure unidirectional lubricant delivery, preventing backflow contamination, and the capillary porous structure of lubrication pad 421 enables precise lubrication control.

[0066] like Figures 1-10 As shown, the principle of the automatic page turning device for vocal music scores provided in this embodiment is as follows:

[0067] By stepping on the external switch, the electric telescopic rod 41 is activated to extend, driving the slide 42 to slide along the guide rail 32 and the slideway 33. When the slide 42 moves, the ball bearing 412 rolls along the linear groove of the guide cover 45, and the connecting rod 43 drives the paddle plate 44 to horizontally push the edge of the music sheet. When the connecting rod 43 moves, the paddle block 46 drives the abutment plate 475 to move. The displacement of the abutment plate 475 drives the piston block 472 in the second plug cylinder 471 to move outward, generating negative pressure. The negative pressure is transmitted to the suction nozzle 55 through the three-way pipe 56, thereby sucking up the edge of the music sheet to assist in turning pages.

[0068] When the ball 412 enters the spiral chute and forces the mounting sleeve 410 to rotate, the connecting rod 43 drives the paddle 44 to perform a 180-degree flip to completely turn over the music score.

[0069] When the connecting rod 43 is displaced, the connecting rod 66 is pulled by the pull rope 48 to overcome the elastic force of the torsion spring 64 and the pressure plate 62 is lifted to release the music score so that the turned music score can be turned under the pressure plate 62;

[0070] When resetting, the electric telescopic rod 41 retracts, and the pressing plate 62 automatically presses the new page under the action of the torsion spring 64 to fix the music sheet;

[0071] In addition, when the guide rail 32 needs to be lubricated, the electric telescopic rod 41 is extended and retracted to drive the slide 42 to move, the abutment block 4224 collides with the stopper 413 to compress the first plug rod 4223, and the lubricant is pressed into the nozzle 4222 from the check tube 4226. At this time, the lubricating oil enters the lubricating pad 421 and continuously smears the guide rail 32 through the lubricating pad 421, achieving the advantage of maintenance-free, and can automatically replenish lubrication during performances, adapting to long-term continuous work.

[0072] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0073] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0074] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A device for automatically turning pages of vocal music scores, characterized in that: The invention comprises a page turning device (2) installed on a music stand (1) for turning pages of a music score, wherein the page turning device (2) is composed of a supporting structure (3), a driving structure (4), an adsorption structure (5) and a paper pressing structure (6); The driving structure (4) comprises an electric telescopic rod (41), a slide (42) and a guide cover (45) mounted on the supporting structure (3); the slide (42) is provided with an automatic lubricating member (422); the slide (42) is rotatably mounted with a connecting rod (43); one end of the connecting rod (43) is threadedly mounted with a dial plate (44); the outside of the connecting rod (43) is provided with a connecting member that slides with the guide cover (45); the connecting rod (43) is provided with a first linkage member (47) that is linked to the adsorption structure (5); and the connecting rod (43) is also provided with a second linkage member that is linked to the paper pressing structure (6); The adsorption structure (5) comprises a first fixing frame (51) and a second fixing frame (52), and both the first fixing frame (51) and the second fixing frame (52) are provided with a suction nozzle (55) connected to the first linkage member (47); The paper pressing structure (6) comprises a mounting plate (61), and a pressing plate (62) is rotatably mounted on the inner side of the mounting plate (61).

2. The automatic page turning device for vocal music scores according to claim 1, characterized in that: The music stand (1) is composed of a plate body (11) and a frame body (12); the plate body (11) and the frame body (12) are welded together; and the supporting structure (3) is mounted on the outer wall of the frame body (12) by bolts.

3. The automatic page turning device for vocal music scores according to claim 2, characterized in that: The support structure (3) comprises a mounting frame (31) fixed on the outer wall of the frame body (12); a guide rail (32) is fixed on the side of the mounting frame (31) away from the frame body (12); and a slideway (33) is provided on the guide rail (32).

4. The automatic page turning device for vocal music scores according to claim 3, characterized in that: The slide seat (42) is slidably mounted in the slideway (33); a stopper (413) abutting against an automatic lubricating member (422) is fixed on an inner wall of one side of the slideway (33); and the output end of the electric telescopic rod (41) is fixed to the outer wall of the slide seat (42).

5. The automatic page turning device for vocal music scores according to claim 4, characterized in that: The automatic lubricating component (422) includes a lubricating pad (421) fixed on the side wall of the slide (42) and a first plug cylinder (4221) fixed inside the slide (42); a first plug rod (4223) extending outside the first plug cylinder (4221) is provided inside the first plug cylinder (4221); a contact block (4224) abutting against the stopper (413) is fixed at the other end of the first plug rod (4223); a first return spring (4225) is fixed between the first plug cylinder (4221) and the contact block (4224); two check tubes (4226) are installed on the side wall of the first plug cylinder (4221), and an infusion tube is fixed at the end of each of the two check tubes (4226); two nozzles (4222) connected to the lubricating pad (421) are fixed inside the slide (42); a connecting tube (4227) is fixed between the two nozzles (4222).

6. The automatic page turning device for vocal music scores according to claim 3, characterized in that: The guiding cover (45) is fixed to the outer wall of the guide rail (32). The connecting member includes a mounting sleeve (410) fixed to the outer surface of one end of the connecting rod (43) away from the dial plate (44). A shaft rod (411) is fixed to the side wall of the mounting sleeve (410). A ball (412) is rotatably mounted at the other end of the shaft rod (411). A first chute (451) and a second chute (452) adapted to the ball (412) are formed inside the guiding cover (45). The adjacent ends of the first chute (451) and the second chute (452) are connected. Among them, the first chute (451) is arranged linearly, and the second chute (452) is arranged in a spiral shape. With the expansion and contraction of the electric telescopic rod (41), the ball (412) rolls along the inside of the first chute (451) and the second chute (452), so that the dial plate (44) can be automatically flipped.

7. The automatic page turning device for vocal music scores according to claim 3, characterized in that: The first linkage member (47) includes a second plug cylinder (471) fixed to the outer wall of the guide rail (32). A piston block (472) is slidably arranged inside the second plug cylinder (471). A second plug rod (473) extending to the outside of the second plug cylinder (471) is fixed to the outer wall of the piston block (472). An abutting plate (475) is fixed to the other end of the second plug rod (473). A dial block (46) that slides on the outer wall of the guide rail (32) is rotatably mounted on the outer surface of the connecting rod (43). When the dial block (46) moves with the connecting rod (43), it abuts against the abutting plate (475). A second return spring (474) is fixed between the abutting plate (475) and the second plug cylinder (471). A check valve is arranged on the side of the second plug cylinder (471).

8. The automatic page turning device for vocal music scores according to claim 7, characterized in that: A three-way pipe (56) communicating with the two suction nozzles (55) and the check valve is installed on the first fixing frame (51) and the second fixing frame (52). The outer shape of the first fixing frame (51) is in a U shape, and the outer shape of the second fixing frame (52) is in an L shape. Connecting blocks (54) for fixing the two suction nozzles (55) are installed on both the first fixing frame (51) and the second fixing frame (52). An adjusting rod (53) is installed on the first fixing frame (51) and the second fixing frame (52).

9. The automatic page turning device for vocal music scores according to claim 2, characterized in that: The mounting plate (61) is fixed to the bottom side of the plate body (11). Connecting shafts (63) rotatably connected to the mounting plate (61) are fixed to the outer walls on both sides of the pressing plate (62). A torsion spring (64) is arranged between the outer surfaces of the two connecting shafts (63) and the outer wall of the mounting plate (61). And the pressing plate (62) is elastically connected to the mounting plate (61) through the torsion spring (64) and the connecting shaft (63).

10. The automatic page turning device for vocal music scores according to claim 9, characterized in that: The second linkage member includes a pull rope (48) installed between the pressing plate (62) and the end of the connecting rod (43). A connecting ear (65) is fixed to the side of the pressing plate (62) away from the plate body (11). An adapter rod (66) is rotatably installed inside the connecting ear (65). The other end of the adapter rod (66) is fixed to the end of the pull rope (48). A guide wheel (49) for guiding the pull rope (48) is installed on the frame body (12).

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