CN112233497B - Piano playing finger force exercise device - Google Patents
Piano playing finger force exercise device Download PDFInfo
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- CN112233497B CN112233497B CN202011142147.6A CN202011142147A CN112233497B CN 112233497 B CN112233497 B CN 112233497B CN 202011142147 A CN202011142147 A CN 202011142147A CN 112233497 B CN112233497 B CN 112233497B
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- transparent box
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B15/00—Teaching music
- G09B15/06—Devices for exercising or strengthening fingers or arms; Devices for holding fingers or arms in a proper position for playing
Abstract
The invention discloses a piano playing finger strength exercise device, which comprises a transparent box, wherein scales are arranged on the upper wall of the transparent box along the length direction of the transparent box, each scale consists of a plurality of scale lines, each scale line is provided with a through groove along the width direction of the transparent box, and the transparent box does not contain a right side wall; the keys are hinged on the edge of the upper wall of the opening of the transparent box through hinges, and the left lower end of the keys is provided with a striking plate; the supporting wall is fixed on the lower wall edge of the opening of the transparent box; the supporting plate is horizontally arranged right below the keys; the electromagnet is arranged on the right side surface of the supporting wall; the ball body is made of iron and is positioned inside the transparent box; the beater is inserted in the through groove. According to the invention, the hitting board under the keys is used for hitting the ball body, so that the ball body moves, and a trainer can see the distance between the stopping position of the ball body and the position of the hitting device through the transparent box body, so that the difference between the finger force pressed by the trainer at this time and the standard finger force can be reflected visually.
Description
Technical Field
The invention relates to the field of piano practice auxiliary equipment, in particular to a piano playing finger force practice device.
Background
When a piano is used for practice, the fingers are often used for practice, when the piano is used for playing, when keys are knocked, the played sound is different due to the fact that the fingers are different in size, and the fingers are often used for a trainer to carry out a large amount of training on the piano, so that the hand feeling during playing can be generated. There is some exercise device of finger power size in the market at present, all be through setting up pressure sensor on the key, detect the dynamics that the trainer pressed the key through pressure sensor, compare according to the dynamics of this dynamics and standard, such mode can let oneself know the finger power size of the relative standard of the size of the finger power of pressing the key whether too big or undersize, but the trainer is difficult to the audio-visual sense and experiences the difference between this finger power size of pressing of oneself and the standard finger power size, thereby when practising once more, be difficult to comparatively accurate the dynamics of applying the finger to press.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a piano playing finger force training device, wherein a striking plate under a key is used for striking a ball, so that the ball moves, and a trainer can see the distance between the stopping position of the ball and the position of a striking device through a transparent box body, so that the difference between the finger force pressed by the trainer at this time and the standard finger force can be reflected visually.
To this end, the present invention provides a piano playing finger force practicing device, comprising: the upper wall of the transparent box is provided with scales along the length direction of the transparent box, the scales consist of a plurality of scale marks, each scale mark is provided with a through groove along the width direction of the transparent box, and the transparent box does not contain a right side wall; the keys are hinged to the edge of the upper wall of the opening of the transparent box through hinges, a striking plate is arranged at the left lower end of the keys, and the bottom of the striking plate is in contact with the bottom wall of the transparent box; the supporting wall is fixed on the edge of the lower wall of the opening of the transparent box, the height of the supporting wall is not higher than half of the height of the transparent box, and the supporting wall is positioned on the right side of the striking plate; the supporting plate is horizontally arranged right below the key, one end of the supporting plate is fixedly connected with the top of the supporting wall, and the upper surface of the supporting plate is connected with the lower surface of the key through a first spring; the electromagnet is arranged on the right side surface of the supporting wall and is electrically connected with the first power supply device; the ball body is made of iron and is positioned inside the transparent box; and the beating device is inserted in the through groove, the bottom end of the beating device is positioned in the transparent box, and the bottom of the beating device is contacted with the bottom wall of the transparent box.
Further, a magnet is arranged on the bottom wall of the transparent box, and the magnet is close to the striking plate and located on the left side of the striking plate.
Furthermore, a recess is formed in the bottom wall of the transparent box, the magnet is located in the recess, and the upper surface of the magnet and the upper surface of the bottom wall of the transparent box are located on the same smooth horizontal plane.
Further, the right side of the striking plate is connected with the left side of the supporting wall through a second spring.
Further, the beater includes: the connecting plate penetrates through the through groove, the bottom of the connecting plate is in contact with the bottom wall of the transparent box, and the top of the connecting plate is positioned above the transparent box; the pressure sensor is arranged on one surface, facing the opening of the transparent box, of the bottom of the connecting plate; the sound player is arranged on the top of the connecting plate; the processor is used for receiving the pressure value detected by the pressure sensor in real time, comparing the pressure value with a set pressure value, controlling the sound player to emit first sound when the pressure value detected by the pressure sensor is not greater than the set pressure value, and controlling the sound player to emit second sound when the pressure value detected by the pressure sensor is greater than the set pressure value; and the second power supply device is used for respectively providing power supply services for the sound player, the pressure sensor and the processor.
Furthermore, each through groove is inserted with one beating device.
Furthermore, a groove is formed in the groove wall of the through groove, a protrusion used for being clamped inside the groove is arranged at a corresponding position of the connecting plate, the protrusion is matched with the groove, and the protrusion is located at the upper end of the connecting plate.
Further, the bottom of the transparent box is provided with a balancing weight for increasing the weight of the bottom wall of the transparent box.
Furthermore, the front side and the rear side of the transparent box are provided with connecting pieces used for connecting other transparent boxes.
Furthermore, the connecting piece is a magic tape.
The piano playing finger force exercise device provided by the invention has the following beneficial effects:
1. according to the invention, the hitting board under the keys is used for hitting the ball body, so that the ball body moves, a trainer and the transparent box can see the distance between the stopping position of the ball body and the position of the hitting device, and the difference between the finger force pressed by the trainer at this time and the standard finger force can be reflected visually, so that the trainer can know visually how much pressing force needs to be added or reduced to keep consistent with the standard pressing force;
2. the electromagnet is used, so that the deviated ball body can be attracted to the original position again after being electrified, and the magnet is used for limiting the position of the original position with controllable strength at the bottom of the original position, so that the ball body can be rapidly returned when repeated training is carried out;
3. the plurality of hitting devices are arranged, each hitting device is located on one scale mark, so that a trainer can adjust the strength to be trained according to the actual requirement when training is carried out, and meanwhile, a pressure sensor arranged on each hitting device broadcasts the strength by using a sound player according to the impact strength of a ball body;
4. according to the invention, the bottom of the beater is provided with the opening through which the ball body passes, the speed sensor arranged in the opening can judge the difference between the finger force and the standard finger force according to the collected speed of the ball body passing through, and meanwhile, when the ball body passes through the beater, a trainer can intuitively know the force exceeding the standard finger force.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of the overall structure of the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of the present invention in a configuration where multiple strikers are used;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic top view of a plurality of products transversely assembled according to the present invention.
Description of reference numerals:
1. a transparent box; 2. a balancing weight; 3. a support wall; 4. an electromagnet; 5. a second spring; 6. a support plate; 7. a first spring; 8. keys of keys; 9. striking a board; 10. a sphere; 11. a magnet; 12. a beater; 12-1, a pressure sensor; 12-2, connecting plates; 12-3, a sound player; 13. a through groove; 14. a protrusion; 15. a groove; 16. scale lines are marked.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
In the present application, the type and structure of components that are not specified are all the prior art known to those skilled in the art, and those skilled in the art can set the components according to the needs of the actual situation, and the embodiments of the present application are not specifically limited.
Specifically, as shown in fig. 1 to 4, an embodiment of the present invention provides a piano playing finger force practicing device, including: transparent case 1, key 8, support wall 3, support plate 6, electromagnet 4, sphere 10, and beater 12. The upper wall of the transparent box 1 is provided with scales along the length direction, the scales are composed of a plurality of scale lines 16, each scale line 16 is provided with a through groove 13 along the width direction of the transparent box 1, and the transparent box 1 does not contain a right side wall. The keys 8 are hinged to the edge of the upper wall of the opening of the transparent box 1 through hinges, a striking plate 9 is arranged at the left lower end of the keys, and the bottom of the striking plate 9 is in contact with the bottom wall of the transparent box 1. The supporting wall 3 is fixed on the lower wall edge of the opening of the transparent box 1, the height of the supporting wall is not higher than half of the height of the transparent box 1, and the supporting wall is positioned on the right side of the striking plate 9. A support plate 6 is horizontally disposed right below the key 8, and has one end fixedly connected to the top of the support wall 3, and an upper surface connected to a lower surface of the key 8 through a first spring 7. The electromagnet 4 is arranged on the right side of the support wall 3 and is electrically connected to a first power supply device. The ball body 10 is made of iron and is positioned inside the transparent box 1. The beater 12 is inserted into the through groove 13, the bottom end of the beater is positioned inside the transparent box 1, and the bottom of the beater is in contact with the bottom wall of the transparent box 1.
In the technical scheme, the invention is small and light compared with a piano, and can be carried by a trainer, when the trainer trains, the bottom wall of the transparent box 1 is horizontally placed on a horizontal plane, after the bottom wall is placed, the electromagnet 4 can be started to enable the electromagnet 4 to generate magnetic force, so that the sphere 10 can be attracted, the position of the sphere 10 is recovered to the striking plate 9, meanwhile, the trainer selects the strength to be trained according to the scale, in the invention, the scale represents the scale of the strength to be trained, each scale mark 16 represents one strength, the trainer inserts the beater 12 into the through groove 13 at the scale mark 16 corresponding to the selected strength, at the moment, the trainer trains the strength, just like playing a piano, presses down the key 8, so that the striking plate 9 strikes the sphere 10, and the sphere 10 moves forwards, therefore, the ball 10 can impact the beater 12, the playing force can be judged according to the force of the ball 10 impacting the beater 12, in the invention, the beater 12 can generate sound after collision, and at the moment, a trainer can judge the own force of hitting the key 8 according to the sound generated by the beater 12, thereby obtaining training. When the trainer wants to perform the training again, the above operation needs to be repeated.
In the training process, a trainer can see the position of the ball 10 through the transparent box, and can intuitively know the distance between the ball 10 and the beater 12 by inclining, so that the trainer can clearly know how to rapidly adjust the finger force when the trainer exercises again. That is, when the ball 10 does not reach the beater 12 and is further from the beater 12, it is known that a greater force is required for the next exercise, and when the ball 10 does not reach the beater 12 and is further from the beater 12, it is known that a lesser force is required for the next exercise.
In this embodiment, a magnet 11 is disposed on the bottom wall of the transparent box 1, and the magnet 11 is close to the striking plate 9 and located at the left side of the striking plate 9. Thus, after the ball 10 is reset, the magnet 11 will attract the ball 10 to a certain extent, so that the ball 10 will be limited to the left side of the striking plate 9 by a certain force. The magnitude of the magnetic force of the magnet 11 needs to be selected according to the weight of the ball 10.
Meanwhile, in this embodiment, a recess is formed in the bottom wall of the transparent box 1, the magnet 11 is located in the recess, and the upper surface of the magnet 11 and the upper surface of the bottom wall of the transparent box 1 are located on the same smooth horizontal plane. This will allow the movement of the sphere 10 in the transparent case 1 without the sphere 10 moving in the longitudinal direction.
In the present embodiment, the right side surface of the striking plate 9 and the left side surface of the support wall 3 are connected by the second spring 5.
In this embodiment, the beater 12 may have two technical solutions:
the first scheme is as follows: the beater 12 includes: a connection board 12-2, a pressure sensor 12-1, a sound player 12-3, a processor and a second power supply device. The connecting plate 12-2 penetrates through the through groove 13, the bottom of the connecting plate is in contact with the bottom wall of the transparent box 1, and the top of the connecting plate is located above the transparent box 1. The pressure sensor 12-1 is arranged on the side of the bottom of the connection plate 12-2 facing the opening of the transparent box 1. The sound player 12-3 is disposed on top of the connection board 12-2. The processor is configured to receive the pressure value detected by the pressure sensor 12-1 in real time, compare the pressure value with a set pressure value, control the sound player 12-3 to emit a first sound when the pressure value detected by the pressure sensor 12-1 is not greater than the set pressure value, and control the sound player 12-3 to emit a second sound when the pressure value detected by the pressure sensor 12-1 is greater than the set pressure value. The second power supply device is used for respectively providing power supply services for the sound player 12-3, the pressure sensor 12-1 and the processor.
In the above technical solution, when the ball 10 impacts, the pressure sensor 12-1 detects a pressure value generated by the impact of the ball 10, at this time, the processor performs a judgment according to the pressure value detected by the pressure sensor 12-1, the set pressure value is a critical value of the pressure generated by the impact corresponding to the ball 10, that is, a critical value of the finger force when the key 8 is pressed, when the pressure value detected by the pressure sensor 12-1 is not greater than the set pressure value, it indicates that the finger force pressing the key 8 is within a normal range, at this time, the processor controls the sound player 12-3 to emit a first sound, that is, a normal impact sound, when the pressure value detected by the pressure sensor 12-1 is greater than the set pressure value, it indicates that the finger force pressing the key 8 is beyond the normal range, the finger force is too large, at this time, the processor controls the sound player 12-3 to emit a second sound, namely, a prompt sound indicating that the force is too large. When the ball 10 does not reach the beater 12, the trainer can see through the transparent casing 1 where the ball 10 has moved, and thus knows how much force needs to be applied to cause the ball 10 to strike the beater 12.
Scheme II: the beater 12 includes: a connection board 12-2, a speed sensor, a sound player 12-3, a processor and a second power supply device. The connecting plate 12-2 penetrates through the through groove 13, a notch for penetrating the sphere 10 is formed in the bottom of the connecting plate, the rest part of the connecting plate is in contact with the bottom wall of the transparent box 1, and the top of the connecting plate is located above the transparent box 1. The speed sensor is arranged on the surface of the gap and used for detecting the speed of the ball 10 when passing through the gap. The sound player 12-3 is disposed on top of the connection board 12-2. The processor is used for receiving the speed value detected by the speed sensor in real time, comparing the speed value with a set speed value, controlling the sound player 12-3 to emit a first sound when the speed value detected by the speed sensor is not greater than the set speed value, and controlling the sound player 12-3 to emit a second sound when the speed value detected by the speed sensor is greater than the set speed value. The second power supply device is used for respectively providing power supply services for the sound player 12-3, the pressure sensor 12-1 and the processor. In addition, in this embodiment, a deceleration strip for decelerating the sphere 10 is disposed on the transparent box 1 at the bottom of the gap.
In the technical scheme, when the finger force of a trainer cannot reach the standard finger force, the ball 10 cannot reach the connecting plate 12-2, when the finger force of the trainer reaches the standard finger force, the ball 10 reaches the notch, and the deceleration strip is arranged at the lower end of the notch and enables the ball 10 to just stop in the notch, so that the ball 10 can stop in the notch, and when the finger force of the trainer exceeds the standard finger force, the ball 10 penetrates through the connecting plate 12-2, so that the trainer can intuitively know the finger force applied at this time and the standard finger force according to the position of the ball 10 and the distance between the stopping position of the ball 10 and the connecting plate 12-2.
Meanwhile, in the present embodiment, one beater 12 is inserted into each through groove 13. Therefore, when training is carried out, a trainer only needs to press down the beater 12 corresponding to the scale mark 16 of the corresponding strength, so that the bottom of the beater 12 is contacted with the bottom wall of the transparent box 1.
Meanwhile, in this embodiment, a groove 15 is formed in a groove wall of the through groove 13, a protrusion 14 for being clamped in the groove 15 is arranged at a corresponding position of the connecting plate 12-2, the protrusion 14 is matched with the groove 15, and the protrusion 14 is located at the upper end of the connecting plate 12-2. This allows the bottom of the selected beater 12 to be brought into contact with the bottom wall of the transparent casing 1, and the remaining beaters 12 are engaged by the projections 14 and recesses 15 so that the bottom of the beater 12 is above the ball 10 and so does not impede the movement of the ball 10 in the transparent casing 10, as shown in figure 2.
In the present invention, the diameter of the sphere 10 is slightly smaller than the width of the transparent box 1, so that the sphere 10 can only move along the length direction of the transparent box 1.
In this embodiment, the bottom of the transparent box 1 is provided with a weight block 2 for increasing the weight of the bottom wall of the transparent box 1. This makes it possible to keep the transparent case 1 in a stable state and in the same position all the time when the key 8 is struck.
In this embodiment, the front and rear sides of the transparent box 1 are provided with connectors for connecting other transparent boxes. This allows a plurality of products of the invention to be arranged in the manner of figure 4, allowing the simultaneous practice of the finger force of a plurality of fingers at one time.
Meanwhile, in this embodiment, the connecting member is a hook and loop fastener. Therefore, the front side and the rear side of each adjacent transparent box 1 can be conveniently adhered, and the transparent boxes are convenient to take.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (9)
1. A piano playing finger force practicing device is characterized by comprising:
the transparent box (1) is provided with scales along the length direction of the transparent box, the scales are composed of a plurality of scale lines (16), each scale line (16) is provided with a through groove (13) along the width direction of the transparent box (1), and the transparent box (1) does not contain a right side wall;
the keys (8) are hinged to the edge of the upper wall of the opening of the transparent box (1) through hinges, a striking plate (9) is arranged at the left lower end of the keys, and the bottom of the striking plate (9) is in contact with the bottom wall of the transparent box (1);
the supporting wall (3) is fixed on the lower wall edge of the opening of the transparent box (1), the height of the supporting wall is not higher than half of the height of the transparent box (1), and the supporting wall is positioned on the right side of the striking plate (9);
the supporting plate (6) is horizontally arranged right below the key (8), one end of the supporting plate is fixedly connected with the top of the supporting wall (3), and the upper surface of the supporting plate is connected with the lower surface of the key (8) through a first spring (7);
the electromagnet (4) is arranged on the right side surface of the supporting wall (3) and is electrically connected with the first power supply device;
the sphere (10) is made of iron and is positioned inside the transparent box (1);
the beater (12) is inserted into the through groove (13), the bottom end of the beater is positioned inside the transparent box (1), and the bottom of the beater is contacted with the bottom wall of the transparent box (1);
the beater (12) comprises: the connecting plate (12-2) penetrates through the through groove (13), the bottom of the connecting plate is in contact with the bottom wall of the transparent box (1), and the top of the connecting plate is positioned above the transparent box (1); the pressure sensor (12-1) is arranged on one side, facing the opening of the transparent box (1), of the bottom of the connecting plate (12-2); a sound player (12-3) disposed on top of the connection board (12-2); the processor is used for receiving the pressure value detected by the pressure sensor (12-1) in real time, comparing the pressure value with a set pressure value, controlling the sound player (12-3) to emit a first sound when the pressure value detected by the pressure sensor (12-1) is not greater than the set pressure value, and controlling the sound player (12-3) to emit a second sound when the pressure value detected by the pressure sensor (12-1) is greater than the set pressure value; and the second power supply device is used for respectively providing power supply services for the sound player (12-3), the pressure sensor (12-1) and the processor.
2. A piano playing finger force exercise device as claimed in claim 1, wherein a magnet (11) is provided on the bottom wall of said transparent case (1), said magnet (11) being located adjacent to said striking plate (9) and on the left side of said striking plate (9).
3. A piano playing finger force exercise device as claimed in claim 2, wherein said transparent case (1) is provided with a recess on its bottom wall, said magnet (11) is located in said recess, and the upper surface of said magnet (11) and the upper surface of the bottom wall of said transparent case (1) are at the same smooth level.
4. A piano playing fingering practice device according to claim 1, wherein the right side surface of said striking plate (9) and the left side surface of said supporting wall (3) are connected by a second spring (5).
5. A piano playing finger force training device as claimed in claim 4, wherein one said beater (12) is inserted into each said through slot (13).
6. A piano playing finger force training device as claimed in claim 5, wherein a groove (15) is formed in a wall of said through groove (13), a protrusion (14) for engaging with the inside of said groove (15) is formed at a corresponding position of said connecting plate (12-2), said protrusion (14) is engaged with said groove (15), and said protrusion (14) is located at an upper end of said connecting plate (12-2).
7. A piano playing finger force exercise device as claimed in claim 1, wherein a weight block (2) for increasing the weight of the bottom wall of said transparent case (1) is provided at the bottom of said transparent case (1).
8. A piano playing finger force exercise device as claimed in claim 1, wherein said transparent case (1) is provided at front and rear sides thereof with connectors for connecting other transparent cases.
9. A piano playing fingering practice device as set forth in claim 8, wherein said connecting member is a velcro tape.
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| CN202011142147.6A CN112233497B (en) | 2020-10-23 | 2020-10-23 | Piano playing finger force exercise device |
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| CN202011142147.6A CN112233497B (en) | 2020-10-23 | 2020-10-23 | Piano playing finger force exercise device |
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| CN112767780B (en) * | 2021-02-07 | 2022-09-23 | 渤海大学 | Finger force exercise device for piano playing |
| CN113112890B (en) * | 2021-04-16 | 2022-06-07 | 山西师范大学 | Finger force exercise device for piano playing |
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