View singing ear practice teaching device and method thereof

Abstract

The invention belongs to the technical field of teaching aids, and particularly relates to a sighting and singing ear practice teaching device and a method thereof.The sighting and singing ear practice teaching device comprises a supporting base, a radio equipment body and a display screen base, a movable groove is formed in the bottom of the supporting base, hydraulic oil cylinders are arranged on the two sides of the movable groove, and the extension ends of the hydraulic oil cylinders are connected with first movable blocks; the tops of the two first movable blocks are provided with movable rods, the two movable rods are arranged in a crossed mode, and the tops of the movable rods are provided with sliding sleeve blocks. According to the visual singing ear practice teaching device and method, the hydraulic oil cylinder is started to push the first movable blocks on the two sides to be close to each other along the movable grooves, the movable rods are movably connected with the movable rods and the sliding sleeve blocks in a pin mode, and the two movable rods are movably connected in a pin mode, so that the two movable rods drive the sliding sleeve blocks to be close to each other along the supporting sliding rods; therefore, the supporting platform is pushed to move upwards on the guide sliding blocks along the guide sliding grooves, and the height is adjusted to be proper according to the height of a user.

Description

Technical Field

[0001] The invention belongs to the technical field of teaching tools, in particular to a sight-singing and ear-training teaching device and a method thereof. Background Art

[0002] Vocal music refers to a form of music sung with human voice. Vocal music is mainly based on human vocal cords, with the mouth, tongue, and nasal cavity acting on the breath to produce pleasant, continuous, and rhythmic sounds. In vocal music teaching, by imparting basic skills and artistic practice knowledge, we cultivate high-level technical application talents, enable students to have strong vocal and instrumental performance abilities, as well as music appreciation and discrimination abilities, and master the analysis methods of musical works.

[0003] In the current existing technology:

[0004] The traditional vocal music teaching method is that the teacher provides one-on-one guidance to the students, with the teacher demonstrating and the students singing. During the singing process, the teacher finds problems by listening to the students' vocalization methods and corrects them in time, thus completing the sight-singing and ear-training teaching. However, since everyone's voice and singing problems are different, the teacher can only correct them one-on-one, and the teaching time is long, which affects the teaching efficiency. In addition, the current sight-singing and ear-training teaching device is only equipped with a display screen to display the results of the students' practice, and it is not possible to intuitively feel where the problem occurs.

[0005] Therefore, a kind of sight-singing and ear-training teaching device and method thereof are proposed in view of the above problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned problems, a sight-singing and ear-training teaching device and method are proposed.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the sight-singing and ear-training teaching device and method described in the present invention include a support base, a sound receiving device main body and a display screen base, a movable groove is opened at the bottom of the support base, hydraulic cylinders are arranged on both sides of the movable groove, the extending end of the hydraulic cylinder is connected to a first movable block, movable rods are arranged on the tops of the two first movable blocks, the two movable rods are arranged crosswise, a sliding block is arranged on the top of the movable rod, a support sliding rod is passed through the interior of the sliding block, a fixed frame is arranged on the outside of the support sliding rod, a support platform is arranged on the top of the fixed frame, guide sliding grooves are opened on both sides of the support base, and guide sliding blocks are arranged on both sides of the support platform.

[0008] Preferably, the hydraulic cylinder is fixedly connected to the first movable block, the movable rod is movably pinned to the movable rod and the sliding block respectively, the two movable rods are movably pinned, the supporting sliding rod passes through the sliding block and is fixedly connected to the fixed frame, the fixed frame is fixedly connected to the supporting platform, the supporting platform is fixedly connected to the guide sliding block, and the guide sliding block is adapted to the guide sliding groove.

[0009] Preferably, a fixed plate is provided in the front middle part of the top of the supporting platform, a placing plate is provided above the fixed plate, a first fixed shaft is passed through the bottom of the placing plate, a second movable block is provided in the middle part of the rear of the placing plate, a limiting sliding pin is passed through the interior of the second movable block, limiting sliding grooves are provided on both sides of the rear of the placing plate, a first adjusting rod is provided behind the second movable block, a second movable block is provided at one end of the first adjusting rod, an adjusting gear is provided at the other end of the first adjusting rod, a first driving shaft is passed through the interior of the adjusting gear, and a turning handle is connected to the input end of the first driving shaft.

[0010] Preferably, the turning handle is fixedly connected to the first driving shaft, the first driving shaft is fixedly connected to the adjusting gear, the adjusting gear is fixedly connected to the first adjusting rod, the first adjusting rod is movably pinned to the second movable block, the second movable block is fixedly connected to the limiting sliding pin, the limiting sliding pin is adapted to the limiting sliding groove, and the placing plate is movably pinned to the fixed plate through the first fixed shaft.

[0011] Preferably, a radio device body is provided on the right side of the support platform, a supporting screw is provided inside the radio device body, an input end of the supporting screw is connected to a first bevel gear, a second bevel gear is provided below the first bevel gear, an input end of the second bevel gear is connected to a handle, a threaded ring is sleeved on the outside of the supporting screw, a connecting plate is provided on the top of the radio device body, a supporting column is provided in front of the connecting plate, a movable ring is sleeved on the outside of the supporting column, a second adjusting rod is provided between the threaded ring and the movable ring, a microphone is provided in front of the support column, an earphone holder is provided on the left side of the support platform, an arc-shaped fixing plate is provided on both the front and rear sides of the top of the earphone holder, and a fixing spring is provided between the arc-shaped fixing plate and the earphone holder.

[0012] Preferably, the handle is fixedly connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, the first bevel gear is fixedly connected to the support screw, the support screw is threadedly matched with the threaded collar, the connecting plate is movably pin-connected with the radio device body and the support column respectively, the support column passes through the movable collar, the second adjusting rod is movably pin-connected with the threaded collar and the movable collar respectively, the support column is fixedly connected to the microphone, the headphone rack is movably pin-connected with the arc-shaped fixing plate, and the arc-shaped fixing plate is elastically connected to the headphone rack through a fixing spring.

[0013] Preferably, a display screen base is provided at the rear of the fixed plate, a supporting bottom column is provided at the top of the display screen base, a main display screen is provided in front of the supporting bottom column, a movable column is provided inside the supporting bottom column, a secondary display screen is provided on the top of the movable column, a plurality of fixing sockets are opened on the left side of the movable column, and a fixing rod is passed through the upper part of the left side of the supporting bottom column.

[0014] Preferably, the supporting base column is fixedly connected to the main display screen, the movable column is fixedly connected to the auxiliary display screen, and the fixed plug hole is matched with the fixed plug rod.

[0015] Preferably, side display screens are provided on both sides of the main display screen, a second driving shaft is provided on the side of the side display screen close to the main display screen, a coaxial worm gear is provided on the top of the second driving shaft, a synchronous worm is provided on the side of the coaxial worm gear close to the main display screen, a second fixed shaft is passed through the interior of the synchronous worm, an input end of the second fixed shaft is connected to a first gear, a second gear is provided on the side of the first gear close to the main display screen, and an input end of the second gear is connected to a driving motor;

[0016] The drive motor is fixedly connected to the second gear, the second gear is meshed with the first gear, the first gear is fixedly connected to the second fixed shaft, the second fixed shaft is fixedly connected to the synchronous worm, the synchronous worm is meshed with the coaxial worm wheel, the coaxial worm wheel is fixedly connected to the second drive shaft, and the second drive shaft is fixedly connected to the side display screen.

[0017] A method for using a sight-singing and ear-training teaching device comprises the following steps:

[0018] Step S1: The hydraulic cylinder is started to push the first movable blocks on both sides to move closer to each other along the movable groove. Since the movable rod is respectively connected to the movable rod and the sliding block with movable pins, the two movable rods are connected with movable pins, so that the two movable rods drive the sliding blocks to move closer to each other along the supporting slide rod, thereby pushing the supporting platform to move up along the guide slide groove on the guide slide, and adjusting to a suitable height according to the height of the user;

[0019] Step S2: the handle rotates, and the adjusting gear is driven to rotate under the action of the first driving shaft. Since the adjusting gear is fixedly connected to the first adjusting rod, the first adjusting rod drives the second movable block to rotate, so that the limiting sliding pin moves along the limiting sliding groove. Since the placing plate is connected to the fixed plate through the first fixed shaft, the placing plate and the fixed plate are tilted at a certain angle under the action of the first adjusting rod, so as to facilitate the placement of the lyrics book or the sheet music.

[0020] Step S3: rotating the handle to drive the second bevel gear to rotate, and under the meshing action of the gears, the first bevel gear drives the supporting screw to rotate, thereby pushing the threaded collar to move vertically under the action of the thread, and because the second adjustment rod is movably pin-connected with the threaded collar and the movable collar respectively, and the connecting plate is movably pin-connected with the main body of the radio equipment and the supporting column respectively, the movable collar drives the supporting column to rotate, thereby adjusting the position of the microphone to facilitate radio recording;

[0021] Step S4: After practicing singing, the earphones can be placed on the earphone stand. Since the arc-shaped fixing plate is elastically connected to the earphone stand through the fixing spring, the earphone stand and the arc-shaped fixing plate are movably pinned, so that the arc-shaped fixing plate fixes the earphones under the elastic force of the fixing spring;

[0022] Step S5: The result of the singing practice will be displayed on the main display screen, and the result of the teacher's demonstration will be displayed on the secondary display screen. Pull the movable column to adjust the height of the secondary display screen. After the adjustment is completed, fix it through the cooperation between the fixed jack and the fixed rod, so as to compare the results and feel the emergence of the problem more intuitively.

[0023] Step S6: The driving motor starts to drive the second gear to rotate, and the first gear drives the second fixed shaft to rotate under the meshing action of the gears, so that the synchronous worm rotates accordingly. Since the synchronous worm is meshed with the coaxial worm wheel, the coaxial worm wheel drives the second driving shaft to rotate under the meshing action of the gears, thereby completing the angle adjustment of the side display screens on both sides, so that the teacher can observe the students' vocalization methods when practicing singing through the side display screens, and provide guidance and teaching to the students more quickly.

[0024] Beneficial effects of the present invention:

[0025] The present invention provides a sight-singing and ear-training teaching device and method thereof. The hydraulic oil cylinder is started to push the first movable blocks on both sides to approach each other along the movable groove. Since the movable rod is respectively connected with the movable rod and the sliding block by movable pins, the two movable rods are connected by movable pins, so that the two movable rods drive the sliding block to approach each other along the supporting sliding rod, thereby pushing the supporting platform to move up along the guiding sliding groove on the guiding sliding block, and adjusting to a suitable height according to the height of the user;

[0026] The invention provides a sight-singing and ear-training teaching device and method thereof. The turning handle is rotated to drive the adjusting gear to rotate under the action of the first driving shaft. Since the adjusting gear is fixedly connected with the first adjusting rod, the first adjusting rod drives the second movable block to rotate, so that the limiting sliding pin moves along the limiting sliding groove. Since the placing plate is connected with the fixing plate through the first fixed shaft, the placing plate and the fixing plate are tilted at a certain angle under the action of the first adjusting rod, so as to facilitate the placement of lyrics book or music score.

[0027] The present invention provides a sight-singing and ear-training teaching device and method thereof. The second bevel gear is driven to rotate by rotating the handle. Under the meshing action of the gears, the first bevel gear drives the supporting screw to rotate, thereby pushing the threaded collar to move vertically under the action of the thread. Since the second adjusting rod is movably pin-connected with the threaded collar and the movable collar respectively, and the connecting plate is movably pin-connected with the sound-receiving device body and the supporting column respectively, the movable collar drives the supporting column to rotate, thereby adjusting the position of the microphone for the convenience of sound reception. After the singing practice is completed, the earphone can be placed on the earphone rack. Since the arc-shaped fixing plate is elastically connected to the earphone rack through a fixing spring, the earphone rack is movably pin-connected with the arc-shaped fixing plate, so that the arc-shaped fixing plate fixes the earphone under the elastic force of the fixing spring.

[0028] The present invention provides a sight-singing and ear-training teaching device and method thereof, wherein the result of singing training is displayed on a main display screen, and the result of teacher demonstration is displayed on a secondary display screen, and the height of the secondary display screen is adjusted by pulling a movable column. After the adjustment is completed, the secondary display screen is fixed by the cooperation between a fixed jack and a fixed rod, so that the results can be compared and the occurrence of problems can be more intuitively felt;

[0029] The present invention provides a sight-singing and ear-training teaching device and method thereof, which starts a driving motor to drive the second gear to rotate, and under the meshing action of the gears, the first gear drives the second fixed shaft to rotate, so that the synchronous worm rotates accordingly. Since the synchronous worm is meshed with the coaxial worm wheel, under the meshing action of the gears, the coaxial worm wheel drives the second driving shaft to rotate, thereby completing the angle adjustment of the side display screens on both sides, so that the teacher can observe the students' vocalization methods when practicing singing through the side display screens, and can guide and teach the students more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 is a stereogram of the present invention;

[0032] Figure 2 It is a structural diagram of the support base of the present invention;

[0033] Figure 3 It is a structural diagram of the placement plate of the present invention;

[0034] Figure 4 It is a structural diagram of the main body of the radio equipment of the present invention;

[0035] Figure 5 is a structural diagram of the display screen base of the present invention;

[0036] Figure 6It is a structural diagram of the connection between the main display screen and the side display screen of the present invention.

[0037] Legend:

[0038] 1. Support base; 2. Movable groove; 3. Hydraulic cylinder; 4. First movable block; 5. Movable rod; 6. Sliding block; 7. Support slide rod; 8. Fixed frame; 9. Guide slide groove; 10. Support platform; 11. Guide slider; 12. Fixed plate; 13. Placement plate; 14. First fixed axis; 15. Second movable block; 16. Limiting slide pin; 17. Limiting slide groove; 18. First adjustment rod; 19. Adjustment gear; 20. Turning handle; 21. Radio equipment body; 22. Support screw rod; 23. First bevel gear; 24. Second bevel gear; 25 , handle; 26, threaded collar; 27, connecting plate; 28, movable collar; 29, second adjusting rod; 30, supporting column; 31, microphone; 32, headphone holder; 33, arc-shaped fixing plate; 34, fixing spring; 35, display screen base; 36, supporting bottom column; 37, main display screen; 38, movable column; 39, auxiliary display screen; 40, fixing jack; 41, fixing rod; 42, side display screen; 43, coaxial worm gear; 44, synchronous worm; 45, second fixed shaft; 46, first gear; 47, second gear; 48, driving motor. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Specific examples are given below.

[0041] See also Figure 1 and Figure 2The present invention provides a sight-singing and ear-training teaching device and method thereof, comprising a support base 1, a sound receiving device body 21 and a display screen base 35, a movable groove 2 is provided at the bottom of the support base 1, hydraulic cylinders 3 are provided on both sides of the movable groove 2, the extension end of the hydraulic cylinder 3 is connected to a first movable block 4, a movable rod 5 is provided on the top of the two first movable blocks 4, the two movable rods 5 are cross-arranged, a sliding block 6 is provided on the top of the movable rod 5, a support sliding rod 7 is passed through the interior of the sliding block 6, a fixed frame 8 is provided on the outside of the support sliding rod 7, and a fixed frame 8 is provided on the outside of the fixed frame 8. A supporting platform 10 is provided on the top of the fixed frame 8, guide slide grooves 9 are provided on both sides of the supporting base 1, guide sliders 11 are provided on both sides of the supporting platform 10, the hydraulic cylinder 3 is fixedly connected to the first movable block 4, the movable rod 5 is movably pinned to the movable rod 5 and the sliding block 6 respectively, the two movable rods 5 are movably pinned, the supporting slide rod 7 passes through the sliding block 6 and is fixedly connected to the fixed frame 8, the fixed frame 8 is fixedly connected to the supporting platform 10, the supporting platform 10 is fixedly connected to the guide slider 11, and the guide slider 11 is adapted to the guiding groove 9.

[0042] During operation, the hydraulic cylinder 3 is started to push the first movable blocks 4 on both sides toward each other along the movable groove 2. Since the movable rod 5 is movably pin-connected with the movable rod 5 and the sliding block 6 respectively, the two movable rods 5 are movably pin-connected, so that the two movable rods 5 drive the sliding block 6 to approach each other along the supporting slide rod 7, thereby pushing the supporting platform 10 to move up along the guide slide groove 9 on the guide slider 11 and adjust it to a suitable height according to the user's height.

[0043] Further, such as Figure 1 and Figure 3 As shown, a fixed plate 12 is arranged in front of the middle of the top of the support platform 10, a placement plate 13 is arranged above the fixed plate 12, a first fixed shaft 14 is penetrated through the bottom of the placement plate 13, a second movable block 15 is arranged in the middle of the rear of the placement plate 13, a limiting slide pin 16 is penetrated inside the second movable block 15, and limiting slide grooves 17 are provided on both sides of the rear of the placement plate 13, a first adjusting rod 18 is arranged behind the second movable block 15, one end of the first adjusting rod 18 is provided with the second movable block 15, and the other end of the first adjusting rod 18 is provided with a first movable block 15. An adjusting gear 19 is provided, a first driving shaft is passed through the interior of the adjusting gear 19, a turning handle 20 is connected to the input end of the first driving shaft, the turning handle 20 is fixedly connected to the first driving shaft, the first driving shaft is fixedly connected to the adjusting gear 19, the adjusting gear 19 is fixedly connected to the first adjusting rod 18, the first adjusting rod 18 is movably pin-connected to the second movable block 15, the second movable block 15 is fixedly connected to the limiting sliding pin 16, the limiting sliding pin 16 is adapted to the limiting sliding groove 17, and the placing plate 13 is movably pin-connected to the fixed plate 12 through the first fixed shaft 14.

[0044] During operation, the handle 20 rotates, and the adjusting gear 19 is driven to rotate under the action of the first driving shaft. Since the adjusting gear 19 is fixedly connected to the first adjusting rod 18, the first adjusting rod 18 drives the second movable block 15 to rotate, so that the limiting slide pin 16 moves along the limiting slide groove 17. Since the placement plate 13 is movably pin-connected with the fixed plate 12 through the first fixed shaft 14, the placement plate 13 and the fixed plate 12 are tilted at a certain angle under the action of the first adjusting rod 18 to facilitate the placement of the lyrics book or music score.

[0045] Further, such as Figure 1 and Figure 4 As shown, a radio device body 21 is arranged on the right side of the support platform 10, a support screw rod 22 is arranged inside the radio device body 21, an input end of the support screw rod 22 is connected to a first bevel gear 23, a second bevel gear 24 is arranged below the first bevel gear 23, an input end of the second bevel gear 24 is connected to a handle 25, a threaded collar 26 is sleeved on the outside of the support screw rod 22, a connecting plate 27 is arranged on the top of the radio device body 21, a support column 30 is arranged in front of the connecting plate 27, a movable collar 28 is sleeved on the outside of the support column 30, a second adjusting rod 29 is arranged between the threaded collar 26 and the movable collar 28, a microphone 31 is arranged in front of the support column 30, an earphone holder 32 is arranged on the left side of the support platform 10, and the earphone holder 33 is arranged on the left side of the support platform 10. The front and rear sides of the top are both provided with arc-shaped fixing plates 33, a fixing spring 34 is provided between the arc-shaped fixing plates 33 and the earphone holder 32, the handle 25 is fixedly connected with the second bevel gear 24, the second bevel gear 24 is meshed with the first bevel gear 23, the first bevel gear 23 is fixedly connected with the supporting screw rod 22, the supporting screw rod 22 is threadedly matched with the threaded collar 26, the connecting plate 27 is movably pin-connected with the main body of the radio device 21 and the supporting column 30 respectively, the supporting column 30 passes through the movable collar 28, the second adjusting rod 29 is movably pin-connected with the threaded collar 26 and the movable collar 28 respectively, the supporting column 30 is fixedly connected with the microphone 31, the earphone holder 32 is movably pin-connected with the arc-shaped fixing plates 33, and the arc-shaped fixing plates 33 are elastically connected with the earphone holder 32 through the fixing spring 34.

[0046] During operation, the handle 25 is rotated to drive the second bevel gear 24 to rotate. Under the meshing action of the gears, the first bevel gear 23 drives the supporting screw rod 22 to rotate, thereby pushing the threaded collar 26 to move vertically under the action of the thread. Since the second adjusting rod 29 is movably pinned to the threaded collar 26 and the movable collar 28 respectively, and the connecting plate 27 is movably pinned to the main body 21 of the radio equipment and the supporting column 30 respectively, the movable collar 28 drives the supporting column 30 to rotate, thereby adjusting the position of the microphone 31 for the convenience of radio recording. After practicing singing, the earphones can be placed on the earphone rack 32. Since the arc-shaped fixing plate 33 is elastically connected to the earphone rack 32 by the fixing spring 34, the earphone rack 32 is movably pinned to the arc-shaped fixing plate 33, so that the arc-shaped fixing plate 33 fixes the earphones under the elastic force of the fixing spring 34.

[0047] Further, such as Figure 1 and Figure 5 As shown, a display screen base 35 is provided at the rear of the fixed plate 12, a supporting bottom column 36 is provided at the top of the display screen base 35, a main display screen 37 is provided in front of the supporting bottom column 36, a movable column 38 is provided inside the supporting bottom column 36, a sub-display screen 39 is provided on the top of the movable column 38, a plurality of fixing holes 40 are provided on the left side of the movable column 38, a fixing rod 41 is passed through the upper part of the left side of the supporting bottom column 36, the supporting bottom column 36 is fixedly connected to the main display screen 37, the movable column 38 is fixedly connected to the sub-display screen 39, and the fixing holes 40 are adapted to the fixing rod 41.

[0048] During operation, the result of singing practice will be displayed on the main display screen 37, and the result of teacher's demonstration will be displayed on the sub-display screen 39. Pull the movable column 38 to adjust the height of the sub-display screen 39. After the adjustment is completed, fix it through the cooperation of the fixed jack 40 and the fixed rod 41, so as to compare the results and feel the occurrence of problems more intuitively.

[0049] Further, such as Figure 1 and Figure 6As shown, side display screens 42 are provided on both sides of the main display screen 37, a second driving shaft is provided on the side of the side display screen 42 close to the main display screen 37, a coaxial worm gear 43 is provided on the top of the second driving shaft, a synchronous worm 44 is provided on the side of the coaxial worm gear 43 close to the main display screen 37, a second fixed shaft 45 is passed through the interior of the synchronous worm 44, a first gear 46 is connected to the input end of the second fixed shaft 45, a second gear 47 is provided on the side of the first gear 46 close to the main display screen 37, a driving motor 48 is connected to the input end of the second gear 47, the driving motor 48 is fixedly connected to the second gear 47, the second gear 47 is meshed with the first gear 46, the first gear 46 is fixedly connected to the second fixed shaft 45, the second fixed shaft 45 is fixedly connected to the synchronous worm 44, the synchronous worm 44 is meshed with the coaxial worm gear 43, the coaxial worm gear 43 is fixedly connected to the second driving shaft, and the second driving shaft is fixedly connected to the side display screen 42.

[0050] During operation, the driving motor 48 starts to drive the second gear 47 to rotate, and under the meshing action of the gears, the first gear 46 drives the second fixed shaft 45 to rotate, so that the synchronous worm 44 rotates accordingly. Since the synchronous worm 44 is meshed with the coaxial worm wheel 43, under the meshing action of the gears, the coaxial worm wheel 43 drives the second driving shaft to rotate, thereby completing the angle adjustment of the side display screens 42 on both sides, so that the teacher can observe the students' vocalization methods when practicing singing through the side display screens 42, and guide and teach the students more quickly.

[0051] like Figure 1-6 As shown, a method for using a sight-singing and ear-training teaching device comprises the following steps:

[0052] Step S1: The hydraulic cylinder 3 is started to push the first movable blocks 4 on both sides to approach each other along the movable groove 2. Since the movable rod 5 is movably pin-connected with the movable rod 5 and the sliding block 6 respectively, the two movable rods 5 are movably pin-connected, so that the two movable rods 5 drive the sliding block 6 to approach each other along the supporting slide rod 7, thereby pushing the supporting platform 10 to move up along the guide slide groove 9 on the guide slider 11, and adjusting to a suitable height according to the height of the user;

[0053] Step S2: the handle 20 rotates, and the adjusting gear 19 is driven to rotate under the action of the first driving shaft. Since the adjusting gear 19 is fixedly connected to the first adjusting rod 18, the first adjusting rod 18 drives the second movable block 15 to rotate, so that the limiting sliding pin 16 moves along the limiting sliding groove 17. Since the placing plate 13 is movably pin-connected with the fixing plate 12 through the first fixing shaft 14, the placing plate 13 and the fixing plate 12 are tilted at a certain angle under the action of the first adjusting rod 18, so as to facilitate the placement of the lyrics book or the sheet music.

[0054] Step S3: The handle 25 is rotated to drive the second bevel gear 24 to rotate. Under the meshing action of the gears, the first bevel gear 23 drives the support screw rod 22 to rotate, thereby pushing the threaded collar 26 to move vertically under the action of the thread. Since the second adjustment rod 29 is movably pin-connected with the threaded collar 26 and the movable collar 28 respectively, and the connecting plate 27 is movably pin-connected with the main body of the radio equipment 21 and the support column 30 respectively, the movable collar 28 drives the support column 30 to rotate, thereby adjusting the position of the microphone 31 to facilitate the radio recording;

[0055] Step S4: After practicing singing, the earphones can be placed on the earphone stand 32. Since the arc-shaped fixing plate 33 is elastically connected to the earphone stand 32 through the fixing spring 34, the earphone stand 32 and the arc-shaped fixing plate 33 are movably pinned, so that the arc-shaped fixing plate 33 fixes the earphones under the elastic force of the fixing spring 34.

[0056] Step S5: The result of the singing practice will be displayed on the main display screen 37, and the result of the teacher's demonstration will be displayed on the secondary display screen 39. Pull the movable column 38 to adjust the height of the secondary display screen 39. After the adjustment is completed, fix it through the cooperation between the fixed jack 40 and the fixed rod 41, so as to compare the results and feel the emergence of the problem more intuitively.

[0057] Step S6: The driving motor 48 is started to drive the second gear 47 to rotate. Under the meshing action of the gears, the first gear 46 drives the second fixed shaft 45 to rotate, so that the synchronous worm 44 rotates accordingly. Since the synchronous worm 44 is meshed with the coaxial worm wheel 43, under the meshing action of the gears, the coaxial worm wheel 43 drives the second driving shaft to rotate, thereby completing the angle adjustment of the side display screens 42 on both sides, so that the teacher can observe the students' vocalization method when practicing singing through the side display screens 42 and provide guidance and teaching to the students more quickly.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A sight-singing and ear-training teaching device, comprising a supporting base (1), a sound receiving device body (21) and a display screen base (35), characterized in that: A movable groove (2) is provided at the bottom of the support base (1), and hydraulic cylinders (3) are provided on both sides of the movable groove (2). The extended end of the hydraulic cylinder (3) is connected to a first movable block (4), and movable rods (5) are provided on the tops of the two first movable blocks (4). The two movable rods (5) are cross-arranged, and a sliding block (6) is provided on the top of the movable rod (5). A supporting sliding rod (7) is passed through the interior of the sliding block (6), and a fixed frame (8) is provided on the outside of the supporting sliding rod (7). A supporting platform (10) is provided on the top of the fixed frame (8), and guide sliding grooves (9) are provided on both sides of the support base (1), and guide sliding blocks (11) are provided on both sides of the support platform (10).

2. A sight-singing and ear-training teaching device according to claim 1, characterized in that: The hydraulic cylinder (3) is fixedly connected to the first movable block (4), the movable rod (5) is movably pin-connected to the movable rod (5) and the sliding block (6) respectively, the two movable rods (5) are movably pin-connected, the supporting sliding rod (7) passes through the sliding block (6) and is fixedly connected to the fixed frame (8), the fixed frame (8) is fixedly connected to the supporting platform (10), the supporting platform (10) is fixedly connected to the guide sliding block (11), and the guide sliding block (11) is adapted to the guide sliding groove (9).

3. A sight-singing and ear-training teaching device according to claim 1, characterized in that: A fixing plate (12) is arranged in the front middle of the top of the support platform (10), a placing plate (13) is arranged above the fixing plate (12), a first fixing shaft (14) is passed through the bottom of the placing plate (13), a second movable block (15) is arranged in the middle of the rear of the placing plate (13), a limiting sliding pin (16) is passed through the interior of the second movable block (15), limiting sliding grooves (17) are provided on both sides of the rear of the placing plate (13), a first adjusting rod (18) is arranged behind the second movable block (15), the second movable block (15) is arranged at one end of the first adjusting rod (18), an adjusting gear (19) is arranged at the other end of the first adjusting rod (18), a first driving shaft is passed through the interior of the adjusting gear (19), and a rotating handle (20) is connected to the input end of the first driving shaft.

4. A sight-singing and ear-training teaching device according to claim 3, characterized in that: The turning handle (20) is fixedly connected to the first driving shaft, the first driving shaft is fixedly connected to the adjusting gear (19), the adjusting gear (19) is fixedly connected to the first adjusting rod (18), the first adjusting rod (18) is movably pin-connected to the second movable block (15), the second movable block (15) is fixedly connected to the limiting sliding pin (16), the limiting sliding pin (16) is matched with the limiting sliding groove (17), and the placing plate (13) is movably pin-connected to the fixed plate (12) via the first fixed shaft (14).

5. A sight-singing and ear-training teaching device according to claim 1, characterized in that: A radio device body (21) is arranged on the right side of the support platform (10), a support screw rod (22) is arranged inside the radio device body (21), an input end of the support screw rod (22) is connected to a first bevel gear (23), a second bevel gear (24) is arranged below the first bevel gear (23), an input end of the second bevel gear (24) is connected to a handle (25), a threaded collar (26) is sleeved on the outside of the support screw rod (22), a connecting plate (27) is arranged on the top of the radio device body (21), and the connecting plate (27) is arranged on the top of the radio device body (21). A support column (30) is arranged in front of the connecting plate (27), a movable collar (28) is sleeved on the outside of the support column (30), a second adjusting rod (29) is arranged between the threaded collar (26) and the movable collar (28), a microphone (31) is arranged in front of the support column (30), an earphone rack (32) is arranged on the left side of the supporting platform (10), an arc-shaped fixing plate (33) is arranged on both the front and rear sides of the top of the earphone rack (32), and a fixing spring (34) is arranged between the arc-shaped fixing plate (33) and the earphone rack (32).

6. A sight-singing and ear-training teaching device according to claim 5, characterized in that: The handle (25) is fixedly connected to the second bevel gear (24), the second bevel gear (24) is meshed with the first bevel gear (23), the first bevel gear (23) is fixedly connected to the support screw (22), the support screw (22) is threadedly matched with the threaded collar (26), the connecting plate (27) is movably pin-connected to the radio device body (21) and the support column (30), the support column (30) passes through the movable collar (28), the second adjustment rod (29) is movably pin-connected to the threaded collar (26) and the movable collar (28), the support column (30) is fixedly connected to the microphone (31), the headphone rack (32) is movably pin-connected to the arc-shaped fixed plate (33), and the arc-shaped fixed plate (33) is elastically connected to the headphone rack (32) through a fixing spring (34).

7. A sight-singing and ear-training teaching device according to claim 3, characterized in that: A display screen base (35) is arranged at the rear of the fixing plate (12), a supporting base column (36) is arranged at the top of the display screen base (35), a main display screen (37) is arranged in front of the supporting base column (36), a movable column (38) is arranged inside the supporting base column (36), a secondary display screen (39) is arranged at the top of the movable column (38), a plurality of fixing holes (40) are opened on the left side of the movable column (38), and a fixing plug rod (41) is passed through the upper part of the left side of the supporting base column (36).

8. A sight-singing and ear-training teaching device according to claim 7, characterized in that: The supporting base column (36) is fixedly connected to the main display screen (37), the movable column (38) is fixedly connected to the auxiliary display screen (39), and the fixed plug hole (40) is matched with the fixed plug rod (41).

9. A sight-singing and ear-training teaching device according to claim 7, characterized in that: Side display screens (42) are arranged on both sides of the main display screen (37); a second driving shaft is arranged on the side of the side display screen (42) close to the main display screen (37); a coaxial worm gear (43) is arranged on the top of the second driving shaft; a synchronous worm gear (44) is arranged on the side of the coaxial worm gear (43) close to the main display screen (37); a second fixed shaft (45) is passed through the interior of the synchronous worm gear (44); an input end of the second fixed shaft (45) is connected to a first gear (46); a second gear (47) is arranged on the side of the first gear (46) close to the main display screen (37); and an input end of the second gear (47) is connected to a driving motor (48); The driving motor (48) is fixedly connected to the second gear (47), the second gear (47) is meshed with the first gear (46), the first gear (46) is fixedly connected to the second fixed shaft (45), the second fixed shaft (45) is fixedly connected to the synchronous worm (44), the synchronous worm (44) is meshed with the coaxial worm wheel (43), the coaxial worm wheel (43) is fixedly connected to the second driving shaft, and the second driving shaft is fixedly connected to the side display screen (42).

10. A method for using a sight-singing and ear-training teaching device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1: The hydraulic cylinder (3) is started to push the first movable blocks (4) on both sides to move closer to each other along the movable groove (2). Since the movable rod (5) is respectively pin-connected with the movable rod (5) and the sliding block (6), the two movable rods (5) are pin-connected, so that the two movable rods (5) drive the sliding block (6) to move closer to each other along the supporting slide rod (7), thereby pushing the supporting platform (10) to move up along the guiding slide groove (9) on the guiding slide block (11) and adjust to a suitable height according to the height of the user; Step S2: the handle (20) rotates, and the adjusting gear (19) is driven to rotate under the action of the first driving shaft. Since the adjusting gear (19) is fixedly connected to the first adjusting rod (18), the first adjusting rod (18) drives the second movable block (15) to rotate, so that the limiting sliding pin (16) moves along the limiting sliding groove (17). Since the placement plate (13) is movably pin-connected with the fixed plate (12) through the first fixed shaft (14), the placement plate (13) and the fixed plate (12) are tilted at a certain angle under the action of the first adjusting rod (18), so as to facilitate the placement of the lyrics book or the music score. Step S3: rotating the handle (25) to drive the second bevel gear (24) to rotate, and under the meshing action of the gears, the first bevel gear (23) drives the support screw rod (22) to rotate, thereby pushing the threaded collar (26) to move vertically under the action of the thread, and because the second adjustment rod (29) is respectively movably pin-connected with the threaded collar (26) and the movable collar (28), and the connecting plate (27) is respectively movably pin-connected with the main body of the radio equipment (21) and the support column (30), the movable collar (28) drives the support column (30) to rotate, thereby adjusting the position of the microphone (31) to facilitate the recording of the sound; Step S4: After the singing practice is completed, the earphones can be placed on the earphone stand (32). Since the arc-shaped fixing plate (33) is elastically connected to the earphone stand (32) through the fixing spring (34), the earphone stand (32) and the arc-shaped fixing plate (33) are movably pin-connected, so that the arc-shaped fixing plate (33) fixes the earphones under the elastic force of the fixing spring (34); Step S5: The result of the singing practice will be displayed on the main display screen (37), and the result of the teacher's demonstration will be displayed on the secondary display screen (39). The movable column (38) is pulled to adjust the height of the secondary display screen 39. After the adjustment is completed, the fixing hole (40) and the fixing rod (41) are used to fix the secondary display screen 39, so as to compare the results and feel the occurrence of problems more intuitively. Step S6: The driving motor (48) is started to drive the second gear (47) to rotate. Under the meshing action of the gears, the first gear (46) drives the second fixed shaft (45) to rotate, thereby causing the synchronous worm (44) to rotate accordingly. Since the synchronous worm (44) is meshed with the coaxial worm wheel (43), under the meshing action of the gears, the coaxial worm wheel (43) drives the second driving shaft to rotate, thereby completing the angle adjustment of the side display screens (42) on both sides, so that the teacher can observe the students' vocalization method when practicing singing through the side display screens (42) and provide guidance and teaching to the students more quickly.

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