Piano tuning device

Abstract

The utility model discloses a piano tuning device, which comprises a shell and a sound pick-up, and can accurately identify the deviation between the current intonation state of the piano and the preset standard intonation by using the sound pick-up to capture sound signals sent by the piano and accurately analyzing the sound signals through a controller. Therefore, a user can control the motor conveniently, it is ensured that each string can reach the ideal vibration frequency, and then the tuning efficiency of the piano is improved. A user can flexibly select a proper adjusting head according to the size and the shape of a piano tuning peg nail, a proper adjusting assembly is easily rotated by sliding a T-shaped sliding block on a shell cover, in addition, the tedious process of traditional manual tuning is simplified through a motor-driven adjusting mode, and the operation difficulty is reduced; and through the design of the anti-falling unit, the phenomena of thread falling and slipping between the adjusting head and the threaded rod on the connecting seat in the adjusting process are effectively avoided, and the stability and the reliability in the adjusting process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to piano tuning technical field, concretely is a piano tuning device. BACKGROUND

[0002] Music, as an important part of human culture, carries rich emotions and thoughts. Piano, as one of the indispensable musical instruments in music performance, the accuracy of its pitch is crucial to the performance effect. However, with the passage of time and changes in the performance environment, the tension of the piano strings will gradually change, leading to a deviation of the pitch from the standard value, and thus affecting the sound quality and expressiveness of the performance.

[0003] The traditional piano tuning method mainly relies on the manual operation of a tuner, who adjusts the tension of the strings by rotating the pin of the string shaft with a special tuning wrench, thereby achieving the purpose of adjusting the pitch. However, this method has many shortcomings, such as the adjustment accuracy being limited by the tuner's technical level, the adjustment process being time-consuming and labor-intensive, and the work efficiency being low. In addition, with the development of the piano manufacturing industry, there are more and more types and models of pianos, and the traditional manual tuning method cannot meet the tuning needs of different models of pianos. Therefore, in view of the above problems, we propose a piano tuning device. SUMMARY

[0004] In view of the problems existing in the prior art, the utility model discloses a piano tuning device, which adopts the technical scheme that a pickup is arranged on the top left end of the shell, a T-shaped clamping block is fixedly installed at the bottom center of the pickup, the pickup is movably clamped in the clamping groove arranged in the middle of the installation block arranged on the left end of the upper and lower sides of the shell through the T-shaped clamping block, a second partition plate is arranged at the right end of the inner side of the shell, shell covers are arranged at the front and rear ends of the second partition plate, T-shaped sliding blocks are symmetrically arranged on the left end of the side of the shell cover opposite to the shell, the T-shaped sliding blocks are slidably installed in the T-shaped sliding grooves symmetrically arranged on the upper and lower sides of the front and rear sides of the shell, disengagement grooves are arranged at the right end of the T-shaped sliding grooves, fixed screws are arranged in the middle of the front and rear sides of the second partition plate in the shape of a "product", adjusting assemblies are threadedly installed on the fixed screws, a first partition plate is fixedly connected to the left end of the second partition plate and the middle part of the inner side of the shell, an adjusting unit is arranged at the left end of the first partition plate, the adjusting unit comprises a motor, a transmission shaft, and a connecting seat, the motor is fixedly installed at the left middle part of the first partition plate, the output shaft of the motor is fixedly connected to the right end of the transmission shaft rotatably installed at the center of the left end of the shell through the fixed plate arranged at the left end of the inner part of the shell, the left end of the transmission shaft is fixedly connected to the connecting seat arranged at the left end of the shell, and the threaded rod welded and arranged at the left center of the connecting seat is threadedly connected to the adjusting assembly.

[0005] As a preferred technical scheme of the utility model, the adjusting assembly contains adjusting head and adjusting hole, the adjusting head is provided with two groups, the adjusting head is respectively screwed on fixed screw rod, the other end of adjusting head is respectively provided with adjusting hole.

[0006] As a preferred technical scheme of the utility model, the outside of adjusting head is provided with several connecting slots in equidistance circumferential array, and connecting slot can be movably inserted with anti -drop unit provided on the left side of connecting seat.

[0007] As a preferred technical scheme of the utility model, the adjusting head is tungsten steel material.

[0008] As a preferred technical scheme of the utility model, the anti -drop unit contains blind hole, compression spring and T -shaped plug rod, the blind hole is provided at the left side top of connecting seat, the inside of blind hole is slidably installed with T -shaped plug rod, and the blocking ring provided at the left end of blind hole blocks the right end of T -shaped plug rod, the right side of T -shaped plug rod is provided with compression spring, and the left and right ends of compression spring are fixedly connected with the right side of T -shaped plug rod and the inside right side of blind hole respectively, the left end of T -shaped plug rod is movably inserted with the inside of connecting slot.

[0009] As a preferred technical scheme of the utility model, still include controller, the controller is provided at the left end of the front side of shell, the output of controller is electrically connected with the input of motor, and the input of controller is electrically connected with the output of pickup and external power supply.

[0010] The utility model discloses the beneficial effect: the utility model discloses through utilizing pickup to capture the sound signal that piano sends out, and through controller carries out accurate analysis, can accurately identify the deviation between the current pitch state of piano and preset standard pitch, thereby help user to control motor, ensure that every string can reach ideal vibration frequency, and then improve piano tuning efficiency;User can according to the size and shape size of piano string shaft peg, flexibly select suitable adjusting head, and rotate suitable adjusting assembly through T -shaped slider on sliding shell cover easily, in addition, the adjusting mode of motor drive simplifies the cumbersome process of traditional manual tuning, and reduces the operation difficulty;Through the design of anti -drop unit, effectively avoid the phenomenon that adjusting head and threaded rod on connecting seat appear to slip in the adjusting process, ensure the stability and reliability of the adjusting process. ACCURACY OF DRAWINGS

[0011] Fig. 1 It is whole structure schematic diagram of the utility model;

[0012] Fig. 2The utility model discloses a partial explosion structure schematic diagram of the utility model is viewed from the top.

[0013] Fig. 3 The utility model discloses a partial section structure schematic diagram of the utility model is viewed from the top.

[0014] Fig. 4 The utility model discloses a partial section structure schematic diagram of the utility model is viewed from the top.

[0015] In the drawing: 1, shell, 2, first baffle, 3, controller, 4, second baffle, 5, adjusting unit, 51, motor, 52, transmission shaft, 53, connecting seat, 6, anti -drop unit, 61, blind hole, 62, compression spring, 63, T-shaped plug rod, 7, adjusting head, 8, adjusting hole, 9, connecting slot, 10, fixed screw rod, 11, T-shaped sliding slot, 12, disengaging groove, 13, T-shaped sliding block, 14, shell cover, 15, T-shaped clamping block, 16, pickup, 17, mounting block, 18, fixed plate. DETAILED DESCRIPTION

[0016] Example 1

[0017] As Figs. 1 to 4The utility model discloses a piano tuning device, adopt the technical scheme is, including casing 1 and pick -up 16, the top left -hand end of casing 1 is provided with pick -up 16, the bottom center of pick -up 16 is fixedly installed with T shaped clamping block 15, pick -up 16 is through T shaped clamping block 15 and is movably clamped in the clamping groove of one of the installation block 17 in the middle part of the left end of the upper and lower two sides of casing 1, the inside right -hand end middle part of casing 1 is provided with second baffle 4, and the front and rear two ends of second baffle 4 are provided with shell cover 14 respectively, and the left end of the one side of shell cover 14 is symmetrically provided with T shaped sliding block 13 up and down respectively, and T shaped sliding block 13 is slidably installed in the T shaped sliding slot 11 that is symmetrically arranged up and down on the front and rear two sides of casing 1, and the right end of T shaped sliding slot 11 is provided with the disengagement groove 12 respectively, and the middle part of the front and rear two sides of second baffle 4 is provided with fixed screw rod 10 respectively and is in the shape of " product " character, and the adjusting assembly is respectively screwed on fixed screw rod 10, and the adjusting assembly contains adjusting head 7 and adjusting hole 8, adjusting head 7 is provided with two groups, and adjusting head 7 is screwed on fixed screw rod 10 respectively, and the other end of adjusting head 7 is provided with adjusting hole 8 respectively, and one of the inner four corner holes, the inner five corner holes, the inner six corner holes, the inner eight corner holes of different diameters can be through adjusting hole 8, to improve the adaptability of adjusting assembly, and the outside equidistance circumferential array of adjusting head 7 is provided with a plurality of connecting slot 9, and connecting slot 9 can be movably inserted with the anti -drop unit 6 that is arranged on the left side of connecting seat 53, through the setting of connecting slot 9, not only can improve the friction of the outside of adjusting head 7 and user's hand, but also is convenient for user to disassemble or install adjusting head 7, and connecting slot 9 and anti -drop unit 6 cooperate and insert, can provide auxiliary fixing for adjusting head 7 installed on connecting seat 53, adjusting head 7 is of tungsten steel material, and the tungsten steel material has high strength and wear resistance, ensures that adjusting head 7 maintains good performance and precision in the long time use, and the left end of second baffle 4 is fixedly connected with the middle part of the inside of casing 1, and the left end of first baffle 2 is provided with adjusting unit 5, and adjusting unit 5 contains motor 51, transmission shaft 52 and connecting seat 53, and motor 51 is fixedly installed on the left -hand middle part of first baffle 2, and the output shaft of motor 51 is fixedly connected with the right end of transmission shaft 52 that is rotatably installed in the left end center of casing 1 through the fixed plate 18 that is arranged in the left end inside of casing 1, and the left end of transmission shaft 52 is fixedly connected with the connecting seat 53 that is arranged in the left end of casing 1, and the threaded rod that is welded and arranged in the left side center of connecting seat 53 is screwed with adjusting assembly, through the control motor 51 operation, its output shaft drives connecting seat 53 to rotate through transmission shaft 52, makes the adjusting head 7 installed on connecting seat 53 can drive string shaft peg to rotate, to realize the adjustment of the tension of string, changes the string vibration frequency, reaches the purpose of adjusting the pitch, and anti -drop unit 6 contains blind hole 61, compression spring 62 and T shaped plug rod 63, and blind hole 61 is arranged in the left side top of connecting seat 53, and T shaped plug rod 63 is slidably installed in the inside of blind hole 61, and the right end of T shaped plug rod 63 is blocked by the blocking ring that is arranged in the left end of blind hole 61,The right side of the T-shaped inserting rod 63 is provided with a compression spring 62, and the left and right ends of the compression spring 62 are fixedly connected with the right side of the T-shaped inserting rod 63 and the inner right side of the blind hole 61 respectively, and the left end of the T-shaped inserting rod 63 is movably inserted with the inner side of the connecting slot 9, in the process of installing the adjusting head 7 to the connecting seat 53, when the adjusting head 7 is installed in place, the T-shaped inserting rod 63 is movably inserted with the connecting slot 9 at the other end under the action of the compression spring 62, so that the phenomenon of thread slipping between the adjusting head 7 and the threaded rod on the connecting seat 53 in the adjusting process can be avoided, and the controller 3 is arranged on the front left end of the shell 1, the output end of the controller 3 is electrically connected with the input end of the motor 51, the input end of the controller 3 is electrically connected with the output end of the pickup 16 and an external power supply, the sound signal emitted by the piano is captured through the pickup 16, the pickup 16 converts the captured sound signal into an electric signal, the controller 3 processes the received electric signal, analyzes the current pitch state of the piano, compares with the preset standard pitch, calculates the difference value to be adjusted, and then the user can control the motor 51 according to the numerical signal provided by the controller 3.

[0018] The working principle of the utility model is: in use, according to the size and shape of the piano peg, the user can open the shell cover 14, make the T-shaped sliding block 13 on the shell cover 14 slide along the T-shaped sliding slot 11, until the T-shaped sliding block 13 moves to the disengaging groove 12, take off the shell cover 14 from the shell 1, expose the adjusting assembly, then select an adjusting head 7 with an adjusting hole 8 of the size and shape suitable for the piano peg from the fixed screw rod 10, ensure that the adjusting hole 8 can tightly and stably cooperate with the piano peg, next, the adjusting head 7 is detached from the fixed screw rod 10 and installed on the threaded rod at the left center of the connecting seat 53, when the adjusting head 7 is installed, the adjusting hole 8 is inserted and fitted on the piano peg to be adjusted, then the user can press the corresponding key, the pickup 16 captures the sound signal emitted by the piano, the pickup 16 converts the captured sound signal into an electric signal and transmits to the controller 3, the controller 3 processes the received electric signal, analyzes the current pitch state of the piano, compares with the preset standard pitch, calculates the difference value to be adjusted, then the user can control the motor 51 according to the numerical signal provided by the controller 3, when the motor 51 operates, the output shaft drives the connecting seat 53 to rotate through the transmission shaft 52, the adjusting head 7 installed on the connecting seat 53 can drive the peg to rotate, so as to realize the adjustment of the string tension, change the string vibration frequency, achieve the purpose of adjusting the pitch, in the process of installing the adjusting head 7 to the connecting seat 53, when the adjusting head 7 is installed in place, the T-shaped inserting rod 63 is movably inserted with the connecting slot 9 at the other end under the action of the compression spring 62, so that the phenomenon of thread slipping between the adjusting head 7 and the threaded rod on the connecting seat 53 in the adjusting process can be avoided.

[0019] The circuit connection is a common means adopted by the person skilled in the art, and technical inspiration can be obtained through limited tests, and belongs to the prior art widely used.

[0020] The components not described in detail herein are prior art.

[0021] Although the specific embodiments of the utility model have been described in detail above, the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model, and the modifications or deformations without creative labor are still within the protection range of the utility model.

Claims

1. A piano tuning device comprising a housing (1) and a sound pick-up (16), characterized in that, The top left end of the shell (1) is provided with a pickup (16), the bottom center of the pickup (16) is fixedly installed with a T-shaped clamping block (15), the pickup (16) is movably clamped in the clamping groove provided in the middle of one of the mounting blocks (17) provided on the left end of the upper and lower sides of the shell (1), the inner right end of the shell (1) is provided with a second partition plate (4), the front and rear ends of the second partition plate (4) are respectively provided with shell covers (14), the left end of the side of the shell cover (14) is respectively and symmetrically provided with a T-shaped sliding block (13) upward and downward, the T-shaped sliding block (13) is respectively and slidably installed in the T-shaped sliding groove (11) provided symmetrically upward and downward on the front and rear sides of the shell (1), the right end of the T-shaped sliding groove (11) is respectively provided with a disengaging groove (12), the middle of the front and rear sides of the second partition plate (4) is respectively provided with a fixed screw rod (10) in the shape of "pin", the fixed screw rod (10) is respectively and threadedly installed with an adjusting assembly, the left end of the second partition plate (4) is fixedly connected with the first partition plate (2) provided in the middle of the inner side of the shell (1), the left end of the first partition plate (2) is provided with an adjusting unit (5), the adjusting unit (5) comprises a motor (51), a transmission shaft (52) and a connecting seat (53), the motor (51) is fixedly installed on the left side of the first partition plate (2), the output shaft of the motor (51) is fixedly connected with the right end of the transmission shaft (52) rotatably installed at the center of the left end of the shell (1) through the fixed plate (18) provided at the left end of the inner side of the shell (1), the left end of the transmission shaft (52) is fixedly connected with the connecting seat (53) provided at the left end of the shell (1), the threaded rod welded and provided at the left center of the connecting seat (53) is threadedly connected with the adjusting assembly.

2. A piano tuning device according to claim 1, characterised in that: The adjusting assembly comprises an adjusting head (7) and an adjusting hole (8), the adjusting head (7) is provided with two groups, the adjusting head (7) is respectively and threadedly installed on the fixed screw rod (10), the other end of the adjusting head (7) is respectively provided with an adjusting hole (8).

3. A piano tuning device according to claim 2, characterised in that: A plurality of connecting slots (9) are arranged equidistantly on the outer side of the adjusting head (7), and the connecting slots (9) are movably inserted with the anti-dropping unit (6) provided on the left side of the connecting seat (53).

4. The piano tuning device of claim 2, wherein: The adjusting head (7) is made of tungsten steel.

5. A piano tuning device according to claim 3, wherein: The anti-dropping unit (6) comprises a blind hole (61), a compression spring (62) and a T-shaped insertion rod (63), the blind hole (61) is provided on the left side of the top of the connecting seat (53), the T-shaped insertion rod (63) is slidably installed in the inner side of the blind hole (61), and the blocking ring provided on the left end of the blind hole (61) blocks the right end of the T-shaped insertion rod (63), the right side of the T-shaped insertion rod (63) is provided with a compression spring (62), and the left and right ends of the compression spring (62) are respectively fixedly connected with the right side of the T-shaped insertion rod (63) and the inner right side of the blind hole (61), and the left end of the T-shaped insertion rod (63) is movably inserted with the inner side of the connecting slot (9).

6. The piano tuning device of claim 1, wherein: Also include a controller (3), the controller (3) is arranged in the front side left end of the shell (1), the output end of the controller (3) is electrically connected with the input end of the motor (51), the input end of the controller (3) is electrically connected with the pickup (16) and the output end of the external power supply.

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