A novel transmodulation structure
Patent Information
- Application Number
- CN202521276001.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-06-20
AI Technical Summary
[0004]使用弦乐器演奏时，调音操作通常需人工完成，每次切换不同调式的曲目时，演奏者都需要进行调音操作，此操作过程不仅耗时，还会中断演奏连贯性，导致音乐表现力下降
[0023]本实用新型中，封闭状的安装架可以对位于其内侧的调弦装置以及线路板起到一定的保护作用，其中，弦乐器的琴弦可以穿过开窗固定在调弦轴上。
Smart Images
Figure CN224851598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of string instrument tuning technology, and in particular to a novel transposition structure. Background Technology
[0002] Stringed instruments are a class of instruments that produce sound by vibrating taut strings through mechanical force. Their core characteristic is that the strings are the sound source, and the vibration is generated through different excitation methods (such as bowing, plucking, and striking) and the sound is amplified by the resonating structure.
[0003] The pitch of a stringed instrument is determined by the vibration frequency of the string, which is affected by the string's tension, length, and thickness. The string's vibration frequency can be adjusted by adjusting the string's tension: the tighter the string, the higher the frequency and the higher the pitch; conversely, the looser the string, the lower the pitch.
[0004] When playing string instruments, tuning is usually done manually. Every time a piece is switched to a different key, the performer needs to tune it. This process is not only time-consuming, but it also interrupts the continuity of the performance, resulting in a decrease in musical expressiveness.
[0005] Based on this, the present invention provides a novel modulation structure for automatically adjusting the strings to the corresponding pitch when playing pieces in different keys, thereby switching the key of the string instrument and solving the aforementioned technical problems. Utility Model Content
[0006] This utility model provides a novel tuning structure, including a mounting frame and a tuning device fixedly mounted on the mounting frame. The tuning device includes a base plate integrally formed and includes a first mounting area and several second mounting areas that are independent of each other. The first mounting area is fixedly mounted on the mounting frame, and one end of each of the second mounting areas is connected to the first mounting area. Strain gauges are provided on the surface of the end of the second mounting area connected to the first mounting area. The tuning device also includes mounting seats in the same number as the second mounting areas, corresponding one-to-one with the second mounting areas. The mounting seats are fixedly mounted on the corresponding second mounting areas. A tuning shaft and a drive motor are provided on the mounting seats. The tuning shaft is rotatably mounted on the mounting seats, and the drive motor is fixedly mounted on the mounting seats and drivenly connected to the tuning shaft to drive the tuning shaft to rotate.
[0007] In this invention, the transposition structure is used for tuning stringed instruments. The mounting bracket is fixed to the stringed instrument to fix the tuning device to the instrument. The tuning shaft of the tuning device is used to fix the strings. After the strings are fixed to the tuning shaft, the drive motor drives the tuning shaft to rotate in different directions, i.e., forward and reverse rotation, so as to wind the strings on it and release the strings wound on it. This allows the tension of the strings to be adjusted, thereby achieving the purpose of adjusting the pitch of the strings, i.e., tuning operation.
[0008] In this invention, the first mounting area of the base plate is fixedly mounted on the mounting bracket, and the mounting seat is fixedly mounted on the second mounting area. Therefore, the tension of the string acting on the tuning shaft will cause a slight deformation at the connection between the first and second mounting areas. At this time, when the strain gauge detects the deformation, its resistance value will change, thereby enabling the measurement of the string tension. Then, tuning can be performed according to the preset correspondence between string tension and pitch. That is, simply by driving the tuning shaft to rotate via the drive motor, the string tension is adjusted to the preset tension, and the string is tuned to the corresponding pitch, completing the tuning operation. Therefore, this invention can automatically complete the tuning process of stringed instruments without manual operation, making the tuning process more convenient and faster. The preset correspondence between string tension and pitch needs to be measured in advance.
[0009] In this invention, the mounting bracket can be part of a stringed instrument or a separate component, used to facilitate the installation of the tuning device on the stringed instrument.
[0010] Furthermore, the tuning shaft is cylindrical, and a through hole is formed on the tuning shaft along its radial direction.
[0011] In this invention, a through hole is provided on the tuning pin for the string to pass through, thus facilitating the fixing of the string to the tuning pin. Then, by driving a motor to rotate the tuning pin clockwise or counterclockwise, the string can be wound around and unwound on the tuning pin, thereby adjusting the string tension. The cylindrical shape of the tuning pin, compared to square or rhomboid structures, prevents the string wound on it from being scratched by sharp edges.
[0012] Furthermore, it also includes a DSP with an external Bluetooth module, and the DSP is connected to the drive motor and the strain gauge.
[0013] In this invention, the DSP connects to a mobile terminal such as a smartphone via a Bluetooth module to receive the key information of the piece to be played. This information is used to control the rotation of the drive motor, adjusting the strings to the corresponding tension, i.e., the corresponding pitch, thus completing the tuning of the stringed instrument. The DSP can also connect to a strain gauge via an integrated ADC module to receive changes in the strain gauge's resistance, thereby acquiring the string tension value in real time during tuning.
[0014] Furthermore, it also includes a pickup connected to the DSP. The pickup can be mounted on a mounting bracket or on a stringed instrument for picking up sound from the strings.
[0015] In this invention, the DSP can connect to the pickup via the ADC module integrated on it, thereby measuring and calibrating the preset correspondence between string pitch and tension. The specific process is as follows: after plucking the string, the pickup picks up the sound of the string and transmits it to the DSP. If the picked-up sound does not meet the pitch requirement, i.e., the pitch is inaccurate, the drive motor is controlled to adjust the tension of the string accordingly until the picked-up string sound meets the pitch requirement. At this time, the recorded tension value is the tension value corresponding to the required pitch.
[0016] In this invention, preferably, the pickup is mounted on a stringed instrument and located near the strings to better pick up the sound from the strings. The pickup can be connected to the DSP via a wire.
[0017] Furthermore, the base plate has several U-shaped perforated grooves arranged linearly, and the perforated grooves divide the base plate into a first mounting area and several second mounting areas. The first mounting area is located on the outside of the perforated grooves, and the second mounting areas are located on the inside of the perforated grooves.
[0018] In this utility model, the first installation area can be installed on the mounting frame by means of connection structures such as welding, pasting, or bolting. If a bolted connection structure is required for installation on the mounting frame, mounting holes for bolting need to be made in the base plate, and the mounting holes need to be located in the first installation area.
[0019] In this invention, the second mounting area is located inside the first mounting area, which can reduce the overall size of the base plate while meeting the usage requirements, thereby achieving the effect of reducing the required installation area of the base plate.
[0020] Furthermore, the second mounting area is elongated and arranged along its width direction, the length direction of the tuning shaft is set along the length direction of the second mounting area, the output shaft of the drive motor is coaxially arranged with the tuning shaft, and the mounting base, the tuning shaft and the drive motor are all located above the base plate.
[0021] In this invention, since the second mounting area is elongated, the length direction of the tuning shaft is set along the length direction of the second mounting area, the output shaft of the drive motor is coaxial with the tuning shaft, and the mounting base, tuning shaft, and drive motor are all located above the second mounting area; therefore, the overall structure formed by the second mounting area, the mounting base mounted thereon, the tuning shaft on the mounting base, and the drive motor is elongated and has a small width. By arranging this overall structure along the width direction of the second mounting area, the overall structure can be arranged compactly together. Correspondingly, the tuning shaft can be arranged compactly, thus making it suitable for stringed instruments with a relatively compact string arrangement.
[0022] Furthermore, the mounting bracket is enclosed, the tuning device is located inside the mounting bracket, and the mounting bracket has an opening corresponding to the tuning shaft for exposing the tuning shaft; a circuit board is also fixedly installed inside the mounting bracket, and the DSP and Bluetooth module are both installed on the circuit board.
[0023] In this invention, the enclosed mounting bracket can provide some protection for the tuning device and circuit board located inside it. The strings of the stringed instrument can pass through the window and be fixed on the tuning shaft.
[0024] The principle and effects of this utility model will be further explained below with reference to the above technical solution and the accompanying drawings: In this invention, the tension of the strings can be measured by the change in the resistance value of the strain gauge. The tension of the strings can be automatically adjusted by driving the tuning shaft to rotate forward or backward by the drive motor. Therefore, this invention can automatically tune stringed instruments according to the preset correspondence between string tension and pitch. That is, this invention can automatically complete the tuning process of stringed instruments without manual operation, making the tuning process more convenient and faster.
[0025] In addition, this invention can also calibrate the preset correspondence between the pitch and tension of the strings of a stringed instrument, so that it can still automatically perform tuning operations after the strings are worn out or replaced. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the novel modulation structure described in an embodiment of the present invention; Figure 2 This is a cross-sectional structural diagram of the novel modulation structure described in an embodiment of the present utility model; Figure 3 This is a cross-sectional view of the novel transducer structure described in this embodiment of the present invention when the mounting base is omitted. Figure 4This is a cross-sectional structural diagram of the novel tuning structure described in this embodiment of the present invention, omitting the mounting base, tuning shaft, drive motor, and circuit board.
[0027] Figure Labels
[0028] 11-Base plate, 111-First mounting area, 112-Second mounting area, 12-Mounting base, 13-Tuning shaft, 131-Through hole, 14-Drive motor, 2-Mounting bracket, 21-Window, 3-Circuit board. Detailed Implementation
[0029] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-4 A novel tuning structure includes a mounting frame 2 and a tuning device fixedly mounted on the mounting frame 2. The tuning device includes a base plate 11, which is integrally formed and includes a first mounting area 111 and several second mounting areas 112 that are independent of each other. The first mounting area 111 is fixedly mounted on the mounting frame 2. One end of each of the second mounting areas 112 is connected to the first mounting area 111, and strain gauges are provided on the surface of the end of the second mounting area 112 that is connected to the first mounting area 111. The tuning device also includes mounting seats 12, which are the same number as the second mounting areas 112 and correspond one-to-one with the second mounting areas 112. The mounting seats 12 are fixedly mounted on the corresponding second mounting areas 112. A tuning shaft 13 and a drive motor 14 are provided on the mounting seats 12. The tuning shaft 13 is rotatably mounted on the mounting seats 12, and the drive motor 14 is fixedly mounted on the mounting seats 12 and is drivenly connected to the tuning shaft 13 to drive the tuning shaft 13 to rotate.
[0030] In this invention, the transposition structure is used for tuning stringed instruments. The mounting bracket 2 is fixed on the stringed instrument to fix the tuning device to the instrument. The tuning shaft 13 of the tuning device is used to fix the strings. After the strings are fixed on the tuning shaft 13, the drive motor 14 drives the tuning shaft 13 to rotate in different directions, i.e., forward and reverse rotation, so that the strings can be wound on it and released. This allows the tension of the strings to be adjusted, thereby achieving the purpose of adjusting the pitch of the strings, i.e., tuning operation.
[0031] In this invention, the first mounting area 111 of the base plate 11 is fixedly mounted on the mounting bracket 2, and the mounting seat 12 is fixedly mounted on the second mounting area 112. Therefore, the tension of the string acting on the tuning pin 13 will cause a slight deformation at the connection between the first mounting area 111 and the second mounting area 112. At this time, when the strain gauge detects the deformation, its resistance value will change, thereby enabling the measurement of the string tension. Furthermore, tuning can be performed according to the preset correspondence between string tension and pitch. That is, simply by driving the tuning pin 13 to rotate via the drive motor 14, the string tension can be adjusted to the preset tension, thus tuning the string to the corresponding pitch and completing the tuning operation. Therefore, this invention can automatically complete the tuning process of a stringed instrument without manual operation, making the tuning process more convenient and faster. The preset correspondence between string tension and pitch needs to be measured in advance.
[0032] In this invention, the mounting bracket 2 can be part of a stringed instrument or a separate component, used to facilitate the installation of the tuning device on the stringed instrument.
[0033] In one embodiment, the tuning shaft 13 is cylindrical, and a through hole 131 is formed on the tuning shaft 13 along its radial direction.
[0034] In this embodiment, a through hole 131 is provided on the tuning pin 13 for the string to pass through, thus facilitating the fixing of the string to the tuning pin 13. Then, by driving the tuning pin 13 to rotate forward or backward via the drive motor 14, the string can be wound around the tuning pin 13 and unwound, thereby adjusting the tension of the string. The cylindrical shape of the tuning pin 13, compared to square or rhomboid structures, prevents the string wound on it from being scratched by sharp edges.
[0035] One embodiment further includes a DSP with an external Bluetooth module, and the DSP is connected to the drive motor 14 and the strain gauge.
[0036] In this embodiment, the DSP connects to a mobile terminal such as a smartphone via a Bluetooth module to receive the key information of the piece to be played. This information is used to control the rotation of the drive motor 14, adjusting the strings to the corresponding tension, i.e., the corresponding pitch, thereby completing the tuning operation of the stringed instrument. The DSP can also connect to a strain gauge via an integrated ADC module to receive changes in the strain gauge's resistance, thus acquiring the string tension value in real time during the tuning process.
[0037] One embodiment further includes a pickup connected to the DSP. The pickup can be mounted on the mounting bracket 2 or on a stringed instrument for picking up sound from the strings.
[0038] In this embodiment, the DSP can connect to the pickup via the ADC module integrated on it, thereby measuring and calibrating the preset correspondence between string pitch and tension. The specific process is as follows: after plucking the string, the pickup picks up the sound of the string and transmits it to the DSP. If the picked-up sound does not meet the pitch requirement, that is, the pitch is inaccurate, the drive motor 14 is controlled to adjust the tension of the string accordingly until the picked-up string sound meets the pitch requirement. At this time, the recorded tension value is the tension value corresponding to the required pitch.
[0039] In this embodiment, preferably, the pickup is mounted on a stringed instrument and located near the strings to better pick up the sound from the strings. The pickup can be connected to the DSP via a wire.
[0040] In one embodiment, the base plate 11 has a plurality of U-shaped hollow grooves arranged linearly, and the hollow grooves divide the base plate 11 into a first mounting area 111 and a plurality of second mounting areas 112. The first mounting area 111 is located outside the hollow groove, and the second mounting areas 112 are located inside the hollow groove.
[0041] In this embodiment, the first mounting area 111 can be installed on the mounting frame 2 by means of welding, pasting, bolting or other connection structures. If a bolted connection structure is required to be installed on the mounting frame 2, mounting holes for bolting need to be made on the base plate 11, and the mounting holes need to be located in the first mounting area 111.
[0042] In this embodiment, the second mounting area 112 is located inside the first mounting area 111. This allows the base plate 11 to meet usage requirements while reducing its overall size, thereby reducing the required mounting area of the base plate 11.
[0043] In one embodiment, the second mounting area 112 is elongated and arranged along its width direction, the length direction of the tuning shaft 13 is arranged along the length direction of the second mounting area 112, the output shaft of the drive motor 14 is coaxially arranged with the tuning shaft 13, and the mounting base 12, the tuning shaft 13 and the drive motor 14 are all located above the base plate 11.
[0044] In this embodiment, since the second mounting area 112 is elongated, the length direction of the tuning shaft 13 is arranged along the length direction of the second mounting area 112, the output shaft of the drive motor 14 is coaxially arranged with the tuning shaft 13, and the mounting base 12, the tuning shaft 13, and the drive motor 14 are all located above the second mounting area 112; therefore, the overall structure formed by the second mounting area 112, the mounting base 12 mounted thereon, the tuning shaft 13 on the mounting base 12, and the drive motor 14 is elongated and has a small width. By arranging this overall structure along the width direction of the second mounting area 112, the overall structure can be arranged compactly together. Correspondingly, the tuning shaft 13 can be arranged compactly, which makes it suitable for stringed instruments with a relatively compact string arrangement.
[0045] In one embodiment, the mounting bracket 2 is enclosed, the tuning device is located inside the mounting bracket 2, and the mounting bracket 2 has an opening 21 for exposing the tuning shaft 13 corresponding to the tuning shaft 13; a circuit board 3 is also fixedly installed inside the mounting bracket 2, and the DSP and Bluetooth module are both installed on the circuit board 3.
[0046] In this embodiment, the enclosed mounting bracket 2 can provide some protection for the tuning device and circuit board 3 located inside it. The strings of the stringed instrument can pass through the window 21 and be fixed on the tuning shaft 13.
[0047] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A novel modulation structure, characterized in that, It includes a mounting bracket and a tuning device fixedly mounted on the mounting bracket; the tuning device includes... The base plate is integrally formed and includes a first mounting area and several second mounting areas that are independent of each other. The first mounting area is fixedly mounted on the mounting frame. One end of the second mounting area is connected to the first mounting area, and strain gauges are provided on the surface of the end of the second mounting area that is connected to the first mounting area. The number of mounting bases is the same as that of the second mounting area, and they correspond one-to-one with the second mounting area. The mounting base is fixedly installed in the corresponding second mounting area. The mounting base is provided with a tuning shaft and a drive motor. The tuning shaft is rotatably mounted on the mounting base. The drive motor is fixedly mounted on the mounting base and is drivenly connected to the tuning shaft to drive the tuning shaft to rotate.
2. The novel modulation structure according to claim 1, characterized in that, The tuning shaft is cylindrical, and a through hole is formed on the tuning shaft along its radial direction.
3. The novel modulation structure according to claim 1 or 2, characterized in that, It also includes a DSP with an external Bluetooth module, and the DSP is connected to the drive motor and strain gauge.
4. The novel modulation structure according to claim 3, characterized in that, It also includes a pickup connected to the DSP.
5. The novel modulation structure according to claim 4, characterized in that, The base plate has several U-shaped perforated grooves arranged linearly, and the perforated grooves divide the base plate into a first mounting area and several second mounting areas. The first mounting area is located on the outside of the perforated grooves, and the second mounting areas are located on the inside of the perforated grooves.
6. The novel modulation structure according to claim 5, characterized in that, The second mounting area is elongated and arranged along its width direction. The length direction of the tuning shaft is set along the length direction of the second mounting area. The output shaft of the drive motor is coaxially arranged with the tuning shaft. The mounting base, the tuning shaft, and the drive motor are all located above the base plate.
7. The novel modulation structure according to claim 6, characterized in that, The mounting bracket is enclosed and has an opening corresponding to the tuning shaft to expose the tuning shaft; a circuit board is fixedly installed inside the mounting bracket, and the DSP and Bluetooth module are both installed on the circuit board.