Piano finger force practicing device

Abstract

The application discloses a piano finger force practice device, which comprises practice modules corresponding to fingers one by one; a locking mechanism is used for locking the practice modules, so that only the target practice module can be pressed down each time; the locking mechanism of the piano finger force practice device can lock the practice modules except the finger instruction finger when practicing finger method, and the locked practice modules do not move when the finger method is practiced and the instruction practice module can move, and other fingers are in a relaxed state; after long-time practice, muscle memory is formed, and irrelevant finger movement is reduced.

Description

Technical Field

[0001] This invention relates to the field of piano practice, and more specifically to a piano finger strength training device. Background Technology

[0002] The piano is a keyboard instrument in Western classical music, often called the "King of Instruments." The piano keyboard consists of 52 white keys, 36 black keys, and a metal soundboard. With the improvement of people's economic level, the piano has moved from being exclusively for the nobility into ordinary households. Now, more and more children are starting to play the piano from a young age. One of the most basic training exercises for children is fingering. Incorrect fingering often makes playing a piece difficult, and many times, incorrect rhythm is mainly due to incorrect fingering. Good hand posture is also crucial for fingering practice.

[0003] For example, patent CN215298551U, published on December 24, 2021, discloses a piano fingering practice device, including a base. The upper outer surface of the base is provided with a practice device shell, and both outer surfaces of the practice device shell are provided with anti-drop mechanisms. This patent, by setting up protective and anti-drop mechanisms, allows the protective cover to be installed on the upper end of the fingering practice rod after use, protecting the fingering practice rod and preventing it from falling to the ground and breaking, thus improving the lifespan of the fingering practice device. The anti-drop mechanism allows the binding straps to be installed on both ends of the practice device shell via a connecting frame before the hand is inserted into the binding straps to operate the fingering practice device, preventing the fingering practice device from slipping out of the hand during practice. This is beneficial for users and brings better prospects for use. In this piano fingering practice device, the binding straps restrain the fingers, only preventing the fingers from detaching from the binding straps.

[0004] Existing fingering practice devices often cause adjacent fingers to unconsciously tense up and move down in sync when a child uses a specific finger to press a key, leading to errors in fingering practice. In actual piano performance, this can easily result in mis-pressing, affecting the normal playing of the piano. Existing fingering practice devices can only prevent the fingers from detaching from the device, but cannot prevent mis-pressing. As a result, with long-term practice, this bad fingering habit will become fixed, affecting the future improvement of piano skills. Summary of the Invention

[0005] The purpose of this invention is to provide a piano finger strength training device to solve the technical problems in related technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A piano finger strength training device includes a training module for pressing each finger in a one-to-one correspondence.

[0008] The locking mechanism is used to lock multiple practice modules so that only the target practice module can be pressed down with each press.

[0009] The aforementioned practice module includes a sleeve, and a pressing part is slidably installed inside the sleeve. One end of the pressing part is inserted into the sleeve, and the pressing part and the sleeve are connected by an elastic element.

[0010] As mentioned above, the end of the pressing part away from the sleeve is detachably equipped with an anti-slip component.

[0011] As mentioned above, the surface of the pressing part located inside the sleeve is also provided with a trigger element. The trigger element is connected to the locking mechanism. When the locking mechanism is activated, it drives the trigger element to activate, locking the corresponding pressing part and preventing the pressing part from moving into the sleeve.

[0012] The trigger has the following two working states;

[0013] One aspect is that the trigger element moves synchronously with the pressing part;

[0014] Secondly, under the action of the locking mechanism, the trigger locks the pressing part, and the pressing part cannot slide along the axial direction of the sleeve to the bottom of the sleeve under the pressure of the finger.

[0015] The aforementioned triggering element includes an adjusting sleeve, which is fitted onto the surface of the pressing part. The adjusting sleeve is hollow inside, and an adjusting rod is slidably arranged inside the adjusting sleeve. Multiple sets of parallel first racks are arranged circumferentially on the side wall of the adjusting rod. The length direction of the first racks is consistent with the axial direction of the adjusting rod. A trigger gear meshes with the outer side of the first rack. The adjusting sleeve is rotatably connected to one side of the trigger gear, and a stop rod is installed on the other side of the trigger gear. A pressing wedge is connected to the end of the adjusting rod away from the locking mechanism. A support rod is abutted against the surface of the pressing wedge, and the support rod is slidably installed on the adjusting sleeve.

[0016] As mentioned above, the inner wall of the sleeve is provided with an arc-shaped groove that matches the movement trajectory of the stop rod.

[0017] The locking mechanism described above includes a locking frame with an inner cavity that is connected to a sleeve. The locking frame has multiple locking parts that correspond one-to-one with multiple triggers. The locking frame also has an adjustment part that is connected to the multiple locking parts. The adjustment part adjusts the operation of the corresponding locking part, thereby driving the corresponding trigger to lock the pressing part.

[0018] As described above, multiple practice modules are spaced apart along the length of the locking frame. The locking part includes a locking shaft, which is rotatably connected to the inner cavity of the locking frame. The locking shaft is arranged horizontally, and multiple locking groups are installed on the locking shaft. The multiple locking groups correspond to the adjustment rods of the multiple practice modules. The adjustment rods are located above the locking groups. The locking groups include a cam and a mating gear, which are arranged coaxially with the locking shaft.

[0019] The aforementioned cam includes a near circular section, a far circular section, and an inclined section between the two. In the initial state, the near circular section is located on the side close to the adjusting rod. A second rack is installed on the end of the adjusting rod close to the locking shaft. In the initial state, the second rack is separated from the mating gear. When the pressing part is pressed, the adjusting rod moves vertically along with the pressing part, and only then does the second rack mesh with the mating gear.

[0020] As mentioned above, a pressure sensor is installed on the end face of the pressing part away from the sleeve, and the pressure sensor monitors the pressing situation of the finger.

[0021] The beneficial effects of the present invention are as follows: In the above technical solution, the locking mechanism provided by the present invention can lock the practice modules other than the fingers that give the finger instructions when practicing finger techniques. When subconscious pressing occurs during finger technique practice, the locked practice modules will not move, and only the instruction practice modules can move. Other fingers can remain relaxed, develop muscle memory, and reduce irrelevant finger movements. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a front view of the piano finger strength training device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the locking mechanism according to an embodiment of the present invention;

[0025] Figure 3 This refers to the situation where the finger passes through the anti-slip component according to an embodiment of the present invention. Figure 2 A schematic diagram of the cross-section of AA;

[0026] Figure 4 This is a schematic diagram of the state of the pressing part when it is pressed according to an embodiment of the present invention;

[0027] Figure 5 This is a front view of the pressing part of an embodiment of the present invention when it is pressed down;

[0028] Figure 6 This is a schematic diagram of the cooperation between the trigger and the locking part according to another embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the engagement between the trigger member and the locking member of the pressed part in another embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the engagement between the trigger member and the locking member of the unpressed pressing part according to another embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the engagement between the trigger member and the locking member of the pressing part that is not pressed, according to another embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Practice Module; 11. Sleeve; 12. Pressing Part; 13. Elastic Component; 14. Anti-detachment Component; 15. Trigger Component; 151. Adjusting Sleeve; 152. Adjusting Rod; 153. Second Rack; 154. First Rack; 155. Trigger Gear; 156. Stop Rod; 157. Extrusion Wedge; 158. Support Rod; 16. Arc-shaped Slide; 17. Pressure Sensor; 2. Locking Mechanism; 21. Locking Frame; 22. Inner Cavity; 23. Locking Part; 231. Locking Shaft; 232. Cam; 233. Matching Gear. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 - Appendix Figure 9 The present invention will be described in further detail below.

[0035] Combined with appendix Figure 1 The present invention provides a piano finger strength training device, comprising,

[0036] Module 1 is for practicing pressing the fingers one-to-one;

[0037] It should be noted that in the following embodiments, in the use state, the practice module 1 is arranged vertically, which simulates the state of piano keys being pressed vertically, that is, the fingers press each practice module 1 one by one to simulate pressing the piano keys.

[0038] Locking mechanism 2 is used to lock multiple practice modules 1, so that only the target practice module 1 can be pressed down each time.

[0039] It should be noted that the practice module 1 is set in multiple groups. The multiple groups of practice modules 1 are set in order to imitate the setting of piano keys. In this embodiment, preferably, the number of practice modules 1 is the same as the number of fingers.

[0040] The practice module 1 includes a sleeve 11, and a pressing part 12 for finger pressing is slidably installed inside the sleeve 11. One end of the pressing part 12 is inserted into the sleeve 11, and the pressing part 12 and the sleeve 11 are connected by an elastic member 13.

[0041] In this embodiment, the pressing part 12 consists of two parts: a sliding section located inside the sleeve 11 and a pressing section located outside the sleeve 11. The sliding section slides vertically inside the sleeve 11. When practicing finger techniques, the practitioner presses the pressing section away from the surface of the sleeve 11.

[0042] The pressing part 12 can slide along the axial direction of the sleeve 11 towards the sleeve 11, that is, move vertically downward. When the pressing part 12 is pressed by a finger, the end of the pressing part 12 located outside the sleeve 11 slides towards the sleeve 11. At this time, the elastic element 13 located inside the sleeve 11 is compressed and accumulates elastic potential energy for the reset of the pressing part 12.

[0043] Specifically, before finger technique practice, the locking mechanism 2 locks the pressing part 12 in the practice module 1 to prevent the pressing part 12 from sliding along the axis of the sleeve 11 towards the sleeve 11 under manual pressing. During practice, the pressing part 12 is located in front of the practitioner, who places their fingers on the pressing part 12, with each finger corresponding to one pressing part 12. The fingertip is close to the surface of the pressing part 12. During finger technique practice, the pressing parts 12 that are not used are locked by the locking mechanism 2, meaning only the pressing part 12 corresponding to the finger technique can move. Thus, only the unlocked pressing parts 12 can be pressed during finger technique practice. The practitioner can only press the pressing part 12 corresponding to the finger technique being practiced, and the extra pressing parts 12 cannot be pressed, thus limiting the finger position. Through repeated practice, muscle memory is formed, and the finger technique practice is completed.

[0044] In this embodiment, the locking mechanism 2 can be any structure or part that can prevent the pressing part 12 from sliding along the axial direction of the sleeve 11, such as a pin, bolt, etc.

[0045] Furthermore, in this embodiment, the elastic element 13 is a connecting spring. The elastic element 13 is provided to assist the pressing part 12 in resetting smoothly and improve the efficiency of finger practice.

[0046] Preferably, an anti-detachment component 14 is detachably installed at the end of the pressing part 12 away from the sleeve 11.

[0047] The anti-detachment component 14 is designed to prevent the practitioner's fingers from detaching from the surface of the pressing part 12. This prevents the unused fingers from being unconsciously lifted during performance, thus avoiding bad playing habits and hindering the improvement of subsequent piano skills.

[0048] Specifically, in this embodiment, the anti-detachment component 14 is ring-shaped. When in use, the practitioner's fingers pass through the anti-detachment component 14 and press against the pressing part 12. The anti-detachment component 14 restricts the fingers from coming off the exercise module 1.

[0049] Furthermore, a pressure sensor 17 is installed on the end face of the pressing part 12 away from the sleeve 11, and the pressure sensor 17 monitors the pressing situation of the finger.

[0050] It should be noted that, in this embodiment, the detection end of the pressure sensor 17 is located on the end face away from the sleeve 11. When the trainee practices finger techniques, the trainee's fingertips press the detection end of the pressure sensor 17. When the trainee presses the pressing part 12, the trainee applies force to the pressure sensor 17 to drive the pressing part 12 to slide towards the sleeve 11. At this time, the pressure sensor 17 records the force applied by the trainee when pressing. Then, during rest, the data from the pressure sensor 17 is analyzed to adjust the trainee's finger techniques to achieve the purpose of scientific training.

[0051] The locking mechanism 2 includes a locking frame 21, the inside of which is an inner cavity 22. The inner cavity 22 of the locking frame 21 is connected to the internal space of the sleeve 11. Multiple locking parts 23 are provided inside the locking frame 21. Each locking part 23 includes a locking shaft 231, which is rotatably connected to the inner cavity 22 of the locking frame 21. The locking shaft 231 is arranged horizontally, and multiple locking groups are installed on the locking shaft 231. Each locking group corresponds to a multiple pressing part 12. The pressing part 12 is located above the locking group. Each locking group includes a cam 232 and a cooperating gear 233. The cam 232 and the cooperating gear 233 are arranged coaxially with the locking shaft 231.

[0052] The cam 232 includes a near circular segment, a far circular segment, and an inclined segment between the two. It should be noted that, in this embodiment, the near circular segment of the cam 232 is an arc segment close to the center of the cam 232, the far circular segment of the cam 232 is an arc segment far from the center of the cam 232, and the inclined segment is the line connecting the near circular segment and the far circular segment. In the initial state, the centers of the near circular segment and the far circular segment are at the same horizontal height.

[0053] In this embodiment, a second rack 153 is installed at one end of the pressing part 12 near the locking shaft 231. In the initial state, the second rack 153 is separated from the mating gear 233. When the pressing part 12 is pressed, the second rack 153 moves vertically along with the pressing part 12, and then the second rack 153 engages with the mating gear 233.

[0054] In this embodiment, the width of the pressing part 12 is wider than the width of the second rack 153, that is, there is a width difference at the connection between the pressing part 12 and the second rack 153.

[0055] Specifically, when the practitioner presses the pressing part 12, the pressing part 12 moves downward in the vertical direction, causing the second rack 153 to mesh with the cooperating gear 233. The cooperating gear 233 rotates under the meshing action of the second rack 153, and the cooperating gear 233 drives the locking shaft 231 to rotate synchronously. The locking shaft 231 drives the cam 232 to rotate, and the far circular section of the cam 232 deflects to one side of the pressing part 12 (preferably, the cam 232 deflects 90 degrees towards the pressing part 12). Except for the pressed pressing part 12 that is pressed, the width difference at the connection between the other pressing parts 12 and the second rack 153 is abutted by the far circular section of the rotated cam 232. That is, the far circular section of the cam 232 abuts against the pressing parts 12 that are not pressed, preventing the other pressing parts 12 from moving downward, thereby achieving the purpose of locking the unused pressing parts 12, which facilitates finger practice.

[0056] It should be noted that after completing a finger exercise, the practitioner releases the pressure on the pressing part 12. Under the action of the elastic element 13, the pressing part 12 returns to its original state, that is, the pressing part 12 moves vertically away from the sleeve 11. Then, the pressing part 12 moves upward synchronously with the second rack 153. The second rack 153 meshes with the cooperating gear 233. The cooperating gear 233 drives the locking shaft 231 to rotate in the opposite direction, causing the far circular section of the cam 232 to move away from the drop difference between the adjusting rod 152 and the connection point of the second rack 153. Thus, all pressing parts 12 are unlocked, making it convenient for subsequent practice.

[0057] Preferably, in this embodiment, the cam 232 and the locking shaft 231 are rotatably connected by a connecting torsion spring. By setting the connecting torsion spring, it is ensured that in the initial state, the centers of the near circular segment and the far circular segment of the cam 232 are at the same horizontal height.

[0058] Specifically, when the practitioner presses the pressing part 12, the second rack 153 on the pressed pressing part 12 moves vertically toward the mating gear 233. The second rack 153 meshes with the mating gear 233, which drives the locking shaft 231 to rotate synchronously, causing the cam 232 to rotate until the far circular section of the cam 232 abuts against the width difference at the connection between the pressing part 12 and the second rack 153, preventing the remaining pressing parts 12 from moving downward, thus locking the remaining pressing parts 12. The cam 232, opposite to the downward-moving second rack 153, also deflects synchronously. However, because the position of the pressing part 12 has decreased, when the cam 232 contacts the pressing part 12, the inclined section of the cam 232 first contacts the pressing part 12. As the practitioner presses down, the pressing part 12 continues to move downward, squeezing the inclined surface of the cam 232, causing the cam 232 to rotate relative to the locking shaft 231. At this time, the connecting torsion spring deforms and accumulates elastic potential energy. When the practitioner releases the pressing part 12, the pressing part 12 returns to its original shape under the action of the elastic element 13. The pressing part 12 moves upward, releasing the restriction on the cam 232. During this process, the connecting torsion spring releases the accumulated elastic potential energy, causing the cam 232 to drive the mating gear 233 to rotate faster. Through the meshing effect of the second rack 153, the pressing part 12 is accelerated to reset. That is, the pressing part 12 and the cam 232 have a mutual promoting reset effect. The cam 232 returns to its original shape, making it convenient for subsequent practice.

[0059] Furthermore, a trigger 15 is provided on the surface of the part of the pressing part 12 located inside the sleeve 11. The trigger 15 cooperates with the locking mechanism 2. When the locking mechanism 2 is activated, it drives the trigger 15 to activate, locking the corresponding pressing part 12 a second time and preventing the pressing part 12 from moving into the sleeve 11.

[0060] Trigger 15 has the following two working states:

[0061] One aspect is that the trigger element 15 moves synchronously with the pressing part 12;

[0062] Secondly, under the action of the locking mechanism 2, the trigger 15 locks the pressing part 12, and the pressing part 12 cannot slide along the axial direction of the sleeve 11 toward the bottom of the sleeve 11 under the pressure of the finger.

[0063] The trigger 15 includes an adjusting sleeve 151, which is fixedly connected to the lower surface of the portion of the pressing part 12 located inside the sleeve 11. That is, the adjusting sleeve 151 is connected to the bottom end of the sliding section of the pressing part 12 (in this embodiment, the second rack 153 can be disposed on the adjusting sleeve 151). A hollow cavity is formed inside the adjusting sleeve 151, and an adjusting rod 152 is slidably disposed inside the adjusting sleeve 151. One end of the adjusting rod 152 is contained in the hollow cavity, and the other end of the adjusting rod 152 extends into the inner cavity 22 of the locking mechanism 2. The adjusting rod 152 can move axially within the hollow cavity in the same direction as the sleeve 11. Multiple sets of parallel first racks 154 are arranged circumferentially on the side wall of the adjusting rod 152. The length direction of the first racks 154 is consistent with the axial direction of the adjusting rod 152. A trigger gear 155 meshes with the outer side of the first racks 154. The first racks 154 and the trigger gears 155 are in one-to-one correspondence. The trigger gears 155 are rotatably connected to the adjusting sleeve 151. A stop rod 156 is fixedly connected to the side of the trigger gears 155.

[0064] In this embodiment, the adjusting rod 152 is divided into an active section and a driving section. The active section is located in the inner cavity 22 of the locking mechanism 2. Multiple locking parts 23 correspond one-to-one with multiple triggers 15. When the locking parts 23 are working, they drive the corresponding triggers 15 to lock the pressing parts 12. The driving section is slidably connected to the adjusting sleeve 151. The first rack 154 is installed on the surface of the driving section. A return spring is also connected between the driving section and the adjusting sleeve 151. The return spring is coaxial with the adjusting rod 152 and is used to maintain the initial position of the adjusting rod 152 constant.

[0065] It should be noted that in this embodiment, the adjusting rod 152 is located directly above the cam 232. When the far end of the cam 232 is pressed against the adjusting rod 152, it pushes the adjusting rod 152 to move away from the locking shaft 231. The second rack 153 is mounted on the surface of the adjusting sleeve 151.

[0066] Specifically, when the practitioner presses the pressing part 12, the pressing part 12 moves vertically, causing the second rack 153 to mesh with the cooperating gear 233. The cooperating gear 233 rotates under the meshing action of the second rack 153, and the cooperating gear 233 drives the locking shaft 231 to rotate synchronously. The locking shaft 231 drives the cam 232 to rotate, and the far circular section of the cam 232 deflects towards one side of the adjusting rod 152. Except for the pressed pressing part 12, the adjusting rods 152 on the other pressing parts 12 are squeezed by the far circular end of the corresponding cam 232, and the adjusting rods 152 move away from the locking shaft 231. The first rack 154 meshes with the outer trigger gear 155, causing the trigger gear 155 to rotate. This drives the stop rod 156 on the side of the trigger gear 155 to deflect synchronously toward the inner wall of the sleeve 11 until the end of the stop rod 156 away from the trigger gear 155 is stuck in the inner wall of the sleeve 11. By having multiple stop rods 156 stuck in the inner wall of the sleeve 11, the pressing part 12 is restricted from moving vertically toward the sleeve 11, thereby achieving the purpose of locking the pressing part 12. When pressed by the trainee, the pressed part 12 drives the trigger 15 to move synchronously vertically toward the cam 232, thereby driving the stop rod 156 into position. Because the width of the connection between the sleeve 11 and the locking frame 21 is small, the swing of the stop rod 156 located in the connection between the sleeve 11 and the locking frame 21 is limited, thus triggering the gear 155 to rotate in all directions. This prevents the adjusting rod 152 from moving towards the pressing part 12. Consequently, when the cam 232 rotates with the mating gear 233, the cam 232 is blocked by the adjusting rod 152, and the cam 233 cannot rotate synchronously with the locking shaft 231. Furthermore, because the cam 232 is rotatably connected to the locking shaft 231, the cam 232 rotates relative to the locking shaft 231. The torsion spring deforms and accumulates elastic potential energy. When the person pressing releases the pressing part 12, the pressing part 12 returns to its original shape under the action of the elastic element 13. The pressing part 12 drives the trigger element 15 to move upward synchronously, and the stop rod 156 leaves the connection between the sleeve 11 and the locking frame 21, releasing the restriction on the cam 232. During this process, the connecting torsion spring releases the accumulated elastic potential energy, causing the cam 232 to drive the mating gear 233 to rotate faster. Through the meshing effect of the second rack 153, the pressing part 12 is accelerated to reset. That is, the pressing part 12 and the cam 232 have a mutual promoting reset effect. The cam 232 returns to its original shape, which is convenient for subsequent practice.

[0067] In this embodiment, the end of the stop rod 156 away from the trigger gear 155 is a flexible rod, that is, the side of the stop rod 156 that contacts the inner wall of the sleeve 11 is made of rubber. When the stop rod 156 follows the trigger gear 155 to deflect toward the inner wall of the sleeve 11, the rubber part is pressed against the inner wall of the sleeve 11. When the stop rod 156 follows the trigger gear 155 to deflect until the stop rod 156 is perpendicular to the inner wall of the sleeve 11, the rubber part of the stop rod 156 presses against the inner wall of the sleeve 11 under the action of elasticity, thus completing the locking purpose of the pressing part 12.

[0068] Furthermore, when the stop rod 156 is entirely a rigid rod, a compression wedge 157 is provided at the end of the adjusting rod 152 away from the locking mechanism 2. That is, the compression wedge 157 is installed on the drive section, and a support rod 158 is abutted on the wedge surface of the compression wedge 157. The support rod 158 is slidably installed on the adjusting sleeve 151, and the sliding direction of the support rod 158 is perpendicular to the axis of the adjusting rod 152.

[0069] In this embodiment, the inner wall of the sleeve 11 is also provided with an abutment groove that cooperates with the end of the support rod 158.

[0070] Specifically, the practitioner's finger passes through the anti-slip element 14 and presses onto the pressing part 12, causing the pressing part 12 to move vertically towards the sleeve 11. Since the trigger element 15 is fixedly connected to the pressing part 12, the trigger element 15 moves synchronously with the pressing part 12. Consequently, the adjusting rod 152 moves synchronously vertically with the pressing part 12, causing the second rack 153 to mesh with the mating gear 233. The mating gear 233 rotates under the meshing action of the second rack 153, causing the locking shaft 231 to rotate synchronously. The locking shaft 231 then rotates the cam 232, causing the far circular section of the cam 232 to deflect towards one side of the adjusting rod 152. Except for the pressed pressing part 12, the adjusting rods 152 on the other pressing parts 12 are squeezed by the corresponding far circular end of the cam 232, causing the adjusting rods 152 to move away from the locking shaft 231. The squeezing wedge 157 moves synchronously with the adjusting rod 152, pushing the support rod 158 towards the sleeve 11 until it is inserted into the abutment groove on the sleeve 11. Meanwhile, the first rack 154 on the adjusting rod 152 meshes with the outer trigger gear 155, causing the trigger gear 155 to rotate. This drives the stop rod 156 on the side of the trigger gear 155 to deflect synchronously towards the inner wall of the sleeve 11 until the end of the stop rod 156 away from the trigger gear 155 is stuck on the inner wall of the sleeve 11. With multiple stop rods 156 stuck on the inner wall of the sleeve 11, the pressing part 12, under the combined action of the support rod 158 and the stop rod 156, locks the trigger element 15 of the pressing part 12 inside the sleeve 11. That is, the pressing part 12 is locked, so that it cannot be displaced under the pressure of the fingers, thus improving the practice effect of finger techniques.

[0071] Furthermore, the inner wall of the sleeve 11 is provided with an arc-shaped groove 16 that cooperates with the movement trajectory of the stop rod 156.

[0072] It should be noted that when the practitioner presses the pressing part 12, the pressing part 12 moves vertically, causing the second rack 153 to mesh with the cooperating gear 233. The cooperating gear 233 rotates under the meshing action of the second rack 153, and the cooperating gear 233 drives the locking shaft 231 to rotate synchronously. The locking shaft 231 drives the cam 232 to rotate, and the far circular section of the cam 232 deflects to one side of the adjusting rod 152. Except for the pressed pressing part 12, the adjusting rods 152 on the other pressing parts 12 are squeezed by the far circular end of the corresponding cam 232, and the adjusting rods 152 move away from the locking shaft 231. At this time, the first rack 154 on the side wall of the adjusting rod 152 and the trigger tooth The gears 155 mesh with each other, causing the trigger gear 155 to rotate. At this time, the stop rod 156 rotates synchronously with the trigger gear 155. The stop rod 156 slides along the arc-shaped groove 16 until the length of the stop rod 156 is perpendicular to the inner wall of the sleeve 11. At this time, if the trainee presses the surface of the pressing part 12, the pressing part 12 will move the trigger 15 towards the locking mechanism 2 under the action of the finger pressure. The arc-shaped groove wall of the arc-shaped groove 16 will hinder the movement of the stop rod 156 (without affecting its rotation). That is, the arc-shaped groove wall of the arc-shaped groove 16 can hinder the movement of the stop rod 156, preventing the pressing part 12 from falling when it is pressed by the finger.

[0073] It should be noted that in this embodiment, the end of the arc-shaped slide groove 16 away from the locking mechanism 2 is in a flat state. When the first rack 154 and the trigger gear 155 are engaged, that is, when the trigger gear 155 reaches the maximum rotation angle, the surface of the stop rod 156 abuts against the flat surface of the arc-shaped slide groove 16, and the flat surface of the arc-shaped slide groove 16 blocks the stop rod 156. At this time, the stop rod 156 and the adjusting rod 152 are in a perpendicular state, thereby achieving the purpose of locking the pressing part 12 by locking the stop rod 156 through the arc-shaped slide groove 16. Furthermore, with the cooperation of the support rod 158, the pressing part 12 is double-locked, which improves the stability of the pressing part 12 when locked.

[0074] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A piano finger strength training device, characterized in that, include, The practice module (1) is used for pressing the finger one by one. The practice module (1) includes a sleeve (11). A pressing part (12) is slidably installed in the sleeve (11). One end of the pressing part (12) is inserted into the sleeve (11). The pressing part (12) and the sleeve (11) are connected by an elastic element (13). Locking mechanism (2) is used to lock multiple practice modules (1) so that only the target practice module (1) can be pressed down each time. The locking mechanism includes a locking frame with an inner cavity that communicates with the internal space of the sleeve. Multiple locking parts are located inside the locking frame, each including a locking shaft rotatably connected to the inner cavity of the locking frame. The locking shaft is horizontally arranged and has multiple locking assemblies mounted on it. Each locking assembly corresponds to a pressing part, which is located above the locking assembly. Each locking assembly includes a cam and a mating gear, which are coaxially arranged with the locking shaft. The cam includes a near circular section, a far circular section, and an inclined section between them. The near circular section of the cam is closer to... The cam has an arc segment at its center, and the far arc segment is an arc segment away from the cam's center. The inclined segment is the line connecting the near and far arc segments. Initially, the centers of the near and far arc segments are at the same horizontal height. A second rack is installed at the end of the pressing part near the locking shaft. Initially, the second rack is separated from the engaging gear. When the pressing part is pressed, the second rack moves vertically along with the pressing part, and then the second rack meshes with the engaging gear. The width of the pressing part is wider than the width of the second rack, meaning there is a width difference at the connection between the pressing part and the second rack.

2. The piano finger strength training device according to claim 1, characterized in that, An anti-detachment component (14) is detachably installed at the end of the pressing part (12) away from the sleeve (11).

3. The piano finger strength training device according to claim 1, characterized in that, The surface of the pressing part (12) located inside the sleeve (11) is also provided with a trigger (15). The trigger (15) is connected to the locking mechanism (2). When the locking mechanism (2) is activated, it drives the trigger (15) to activate, locking the corresponding pressing part (12) and preventing the pressing part (12) from moving into the sleeve (11). The trigger (15) has the following two working states; One aspect is that the trigger element (15) moves synchronously with the pressing part (12); Secondly, under the action of the locking mechanism (2), the trigger (15) locks the pressing part (12), and the pressing part (12) cannot slide along the axial direction of the sleeve (11) to the bottom of the sleeve (11) under the pressure of the finger.

4. The piano finger strength training device according to claim 3, characterized in that, The trigger (15) includes an adjusting sleeve (151), which is fitted onto the surface of the pressing part (12). The adjusting sleeve (151) is hollow inside, and an adjusting rod (152) is slidably arranged inside the adjusting sleeve (151). Multiple sets of parallel first racks (154) are arranged circumferentially on the side wall of the adjusting rod (152). The length direction of the first racks (154) is consistent with the axial direction of the adjusting rod (152). A trigger gear (155) meshes with the outer side of the first racks (154). The adjusting sleeve (151) is rotatably connected to one side of the trigger gear (155), and a stop rod (156) is installed on the other side of the trigger gear (155). A pressing wedge (157) is connected to the end of the adjusting rod (152) away from the locking mechanism (2). A support rod (158) abuts against the surface of the pressing wedge (157), and the support rod (158) is slidably installed on the adjusting sleeve (151).

5. A piano finger strength training device according to claim 4, characterized in that, The inner wall of the sleeve (11) is provided with an arc-shaped groove (16) that matches the movement trajectory of the stop rod (156).

6. A piano finger strength training device according to claim 2, characterized in that, A pressure sensor (17) is installed on the end face of the pressing part (12) away from the sleeve (11), and the pressure sensor (17) monitors the pressing of the finger.

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