An intelligent sound and light feedback device adapted to a stringed instrument bow

Abstract

This utility model discloses an intelligent sound and light feedback device adapted to bows of bowed string instruments. The main body has an internal cavity, within which a control circuit board and battery are installed. A sliding groove is located at the bottom of the main body, and a rear cover is fitted into the groove. Both the main body and the rear cover have semi-circular notches through which wires pass to connect the control circuit board and a light strip. An opening is located on one side of the main body, where an adjustment knob is connected to a stop block. The adjustment knob is mounted on the main body and corresponds to the opening. Gaskets are respectively located on the side of the stop block facing the opening and on the inner wall of the opening in the main body. A Velcro strap is located on one side of the light strip, and a button is mounted on the main body and electrically connected to the control circuit board. The beneficial effects of this utility model are: through the transmission structure of the adjustment knob and the stop block, combined with the gasket design, flexible adaptation to bow tailstocks ranging from 8mm to 30mm in size is achieved, compatible with various bows such as violin, viola, and cello bows, solving the problem of poor versatility of traditional devices, and achieving a 100% compatibility success rate.

Description

Technical Field

[0001] This utility model relates to stringed musical instruments, and in particular to an intelligent sound and light feedback device adapted to the bow of a bowed string instrument. Background Technology

[0002] Stringed instruments constitute a large category of musical instruments, including violins, violas, cellos, double basses, erhu, morin khuur, and many more. There are numerous varieties both domestically and internationally. Performers typically use a bow to play, producing sound by rubbing the bow against the strings.

[0003] In an era of rapid productivity growth, the market for string instrument accessories has developed slowly, with outdated production technology. This market has enormous demand and urgently needs technologically advanced, technologically sophisticated, and innovatively designed products to transform and drive the industry. These products can also provide support for performers in better stage performances and musical composition.

[0004] After long-term research, the inventor developed a luminous musical instrument bow (CN222690359U). A power supply control module is installed inside the handle body, which supplies power to the luminous component. By placing the luminous component on the bow body and simultaneously installing the power supply control module in the handle body to power the luminous component, the bow can emit light when used by the player. This provides a better performance effect, enhances the atmosphere, and improves the stage performance. Furthermore, it can compensate for lighting conditions with less than ideal illumination. However, the applicability of its power supply control module and luminous component is limited; it cannot be simultaneously compatible with violin, viola, and cello bows. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent sound and light feedback device adapted to bows of bowed string instruments.

[0006] The purpose of this utility model is achieved through the following technical solution: an intelligent sound and light feedback device adapted to the bow of a bowed string instrument, comprising a main body, a back cover, a control circuit board, a battery, wires, a Velcro strap, a light strip, a button, an adjustment knob, a stop block, and gaskets; the main body has an internal cavity, in which the control circuit board and the battery are installed; the bottom of the main body has a sliding groove, and the back cover is fitted into the sliding groove; both the main body and the back cover have semi-circular notches, through which the wires pass to connect the control circuit board and the light strip; an opening is provided on one side of the main body, in which the adjustment knob is connected to the stop block, and the adjustment knob is installed on the main body and corresponding to the opening; gaskets are respectively provided on the side of the stop block facing the opening and on the inner side wall of the opening of the main body; the Velcro strap is provided on one side of the light strip, and the button is installed on the main body and electrically connected to the control circuit board.

[0007] Optionally, the main body is also provided with a switch hole and a charging hole. The button is embedded in the switch hole, and the control circuit board is provided with a charging interface, with the charging interface and the charging hole being positioned correspondingly.

[0008] Optionally, the adjustment knob is threadedly connected to the main body, and rotating the adjustment knob can cause the stop block to move in a direction closer to or further away from the opening of the main body.

[0009] Optionally, the light source type of the light strip includes at least one of RGB multi-color light source, single-color light source, cold light source, night light source and fluorescent light source, and the button can control the light strip to realize on / off, RGB stepless color temperature adjustment, brightness adjustment, light flashing mode switching, light rhythm with music and timer on / off functions.

[0010] Optionally, the Velcro strap is a detachable structure, which allows the light strip to be fixed to any position on the bow of a bowed instrument, and the light strip can be repeatedly removed and installed using the Velcro strap.

[0011] Optionally, the pad is made of an elastic anti-slip material, including silicone or rubber, and the pad thickness is 1mm-3mm.

[0012] Optionally, the battery is a rechargeable lithium battery, and the charging interface on the control circuit board is a Type-C interface. The Type-C interface is electrically connected to the battery and can be used to charge the battery.

[0013] This utility model has the following advantages: The intelligent sound and light feedback device adapted to bows of bowed string instruments of this utility model, through the transmission structure of the adjustment knob and the stop block, combined with the shim design, can achieve flexible adaptation of bow tailstocks in the size range of 8mm-30mm, and is compatible with various bows such as violin bows, viola bows, and cello bows, solving the problem of poor universality of traditional devices, with a 100% adaptation success rate. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention. Figure 2 A schematic diagram showing the structure of the adjustment knob, stop block, and washer mounted on the main body. In the diagram, 1-main body, 2-back cover, 3-control circuit board, 4-battery, 5-wire, 6-magic strip, 7-light strip, 8-button, 9-adjustment knob, 10-stop block, 11-pad, 12-slide groove, 13-charging hole. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1 and Figure 2 As shown, an intelligent audio-visual feedback device adapted to bowed string instruments includes a main body 1, a back cover 2, a control circuit board 3, a battery 4, a wire 5, a Velcro strap 6, an LED strip 7, a button 8, an adjustment knob 9, a stop block 11, and a gasket. The main body 1 has an internal cavity, in which the control circuit board 3 and battery 4 are installed. The bottom of the main body 1 has a sliding groove 12, and the back cover 2 is fitted into the sliding groove 12. Both the main body 1 and the back cover 2 have semi-circular notches. The wire 5 passes through the semi-circular notches to connect the control circuit board 3 and the LED strip 7. During installation, a 30cm long wire 5 (AWG26 wire diameter, PVC insulation layer) is used. One end is soldered to the LED strip 7 drive interface of the control circuit board 3, and the other end passes through the semi-circular notch (5mm in diameter) between the main body 1 and the back cover 2. The "T"-shaped protrusion (7.8mm wide, 4.8mm high) of the back cover 2 (acrylic material, 3mm thick) is aligned with the sliding groove 12 at the bottom of the main body 1. The cavity is shaped with a groove (8mm wide and 5mm deep). It slides into the body 1 from one end along the groove 12 until the back cover 2 completely covers the cavity. After assembly, the gap between the joints is ≤0.3mm, and there is no jamming when pushing the back cover 2. An opening is provided on one side of the body 1. The adjustment knob 9 is connected to the abutment block 11. The adjustment knob 9 is installed on the body 1 and is set corresponding to the opening. Gaskets are respectively set on the side of the abutment block 11 facing the opening and on the inner side wall of the opening of the body 1. The magic strip 6 is set on one side of the light strip 7. The button 8 is installed on the body 1 and electrically connected to the control circuit board 3.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, the main body 1 is also provided with a switch hole and a charging hole 13. The button 8 is embedded in the switch hole. The control circuit board 3 is provided with a charging interface, which corresponds to the position of the charging hole 13. Furthermore, the edge of the charging hole 13 is provided with a waterproof rubber ring, and the waterproof rating reaches IPX4, which can effectively prevent short circuit faults caused by water splash. The main body 1 is made of carbon fiber material in one piece with a density of 1.7g / cm³, a tensile strength ≥300MPa, and a single piece weight ≤50g. The back cover 2 is made of acrylic material with a thickness of 3mm. The edge is provided with a "T"-shaped protrusion that matches the sliding groove 12 of the main body 1. After assembly, the fit gap is ≤0.2mm. The adjustment knob 9 is made of ABS plastic with anti-slip texture (depth 0.5mm). The button 8 is a light touch button with a diameter of 8mm, a pressing force of 50-100g, and a life of ≥100,000 times.

[0023] In this embodiment, as Figure 1 and Figure 2As shown, the adjusting knob 9 is threadedly connected to the main body 1. Rotating the adjusting knob 9 causes the abutment 11 to move horizontally towards or away from the opening of the main body 1, with a horizontal stroke range of 0-22mm, making the device suitable for bow tailpieces ranging from 8mm to 30mm in size. The gasket is made of elastic anti-slip material, including silicone or rubber, with a thickness of 1-3mm and a Shore A hardness of 50. This material increases the friction with the bow tailpiece (coefficient of friction ≥0.6) and buffers the pressure of the abutment 11 on the bow tailpiece, preventing damage to the bow tailpiece. Through the transmission structure of the adjusting knob 9 and the abutment 11, combined with the silicone gasket design, the 8mm-30mm range can be achieved. The flexible fit of the bow tailstock allows for compatibility with various bows, including violin, viola, and cello bows, solving the problem of poor versatility in traditional devices. It boasts a 100% compatibility success rate. During installation, the center cylinder (3mm diameter, 3mm length) of the stop block 11 (nylon material, 15mm×10mm×5mm) is press-fitted into the internal threaded hole (M4) of the adjusting knob 9 (ABS plastic, 15mm diameter). Align the adjusting knob 9 with the external threaded post (4mm diameter, 10mm length) on one side of the main body 1 and tighten it clockwise until the stop block 11 is inside the opening of the main body 1. Rotating the adjusting knob 9 will move the stop block 11 horizontally, with a stroke of 0-22mm. Attach silicone gaskets (2mm thickness, Shore A50 hardness) to the side of the stop block 11 facing the opening and to the inner wall of the opening of the main body 1. Press for 30 seconds after attaching to ensure full adhesive adhesion.

[0024] In this embodiment, as Figure 1 and Figure 2As shown, the control circuit board 3 includes a voice control module, a Bluetooth module, a Wi-Fi module, a voltage regulation module, and a firmware upgrade interface. The voice control module uses a high-sensitivity microphone (pickup distance 0.5-3m) and a dedicated voice recognition chip, supporting Chinese, English, and Japanese language recognition. It can accurately recognize preset voice commands with an accuracy rate ≥95%. The Bluetooth module (model BT5.0) and Wi-Fi module (model ESP8266) support simultaneous connection to external devices and can access large AI voice control models such as Baidu Wenxin Yiyan and Alibaba Tongyi Qianwen to achieve flexible voice interaction. The voltage regulation module (model LM1117-3.3) can stably convert the 3.7V output voltage of battery 4 to 3.3V with a voltage fluctuation range ≤±0.05V. The firmware upgrade interface is correspondingly set to the charging port, allowing external devices to be connected through the charging port to rewrite voice commands and upgrade firmware. The data transmission rate is ≥1Mbps. In this embodiment, the control circuit board 3 is prior art; please refer to patent (CN222690359). Therefore, this feedback device features dual control methods: button 8 and voice control. It supports multi-language recognition, AI interaction, and music-synchronized lighting. It automatically adjusts the color and brightness of the lights according to the music frequency (low frequency ≤200Hz, mid frequency 200-1000Hz, high frequency ≥1000Hz), achieving synchronized interaction between lights and music, enhancing the enjoyment of performance and stage presence. Voice command response time is ≤1 second, with a recognition accuracy of ≥95%, meeting the control needs of different scenarios. During installation, the internal cavity of the main body 1 has three positioning posts (3mm in diameter, 2mm in height), with an M2 threaded hole in the center of each post. The control circuit board 3 (65mm×22mm×1.6mm) is placed into the cavity, aligning the mounting holes with the positioning posts. Three M2×4mm Phillips head screws are used, tightened with a torque wrench to a torque of 0.5-0.8 N·m, ensuring the circuit board is securely fixed without loosening and eliminating the risk of short circuit between the circuit board and the inner wall of the cavity.

[0025] In this embodiment, as Figure 1 and Figure 2As shown, the light source type of the light strip 7 includes at least one of RGB multi-color light source, single-color light source, cold light source, night light source, and fluorescent light source. The button 8 can control the light strip 7 to perform on / off switching, RGB stepless color temperature adjustment, brightness adjustment, light flashing mode switching, light rhythm with music, and timed on / off functions. Furthermore, the light strip 7 is a flexible LED light strip 7, 10mm wide and 2mm thick, with 60 LED beads per meter, supporting RGB... Full-color display, color temperature adjustment range 2700K-6500K, brightness adjustment range 10-1000lm; LED strip 7 is fixed to the bow stick via Velcro 6. Velcro 6 is a detachable structure, allowing LED strip 7 to be fixed to any position on the bow stick of a stringed instrument. LED strip 7 can be repeatedly removed and installed via Velcro 6. Velcro 6 has a hook side and a rough side. The hook side is fixed to the surface of LED strip 7 with strong adhesive (adhesion strength ≥5N / cm²), while the rough side can be pasted to any position on the bow stick. It maintains good adhesion even after ≥500 removals and removals. During installation, the hook side (10mm wide) of Velcro 6 is pasted to the non-light-emitting side of LED strip 7 with strong adhesive (adhesion strength ≥5N / cm²), and the rough side (10mm wide) is left aside. The total assembly time is ≤15 minutes.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, battery 4 is a rechargeable lithium battery. The charging interface on the control circuit board 3 is a Type-C interface, which is electrically connected to battery 4. Battery 4 can be charged through the Type-C interface. Furthermore, battery 4 is an 11.1Wh rechargeable lithium battery, with dimensions of 60mm×20mm×5mm, a weight of ≤20g, a rated voltage of 3.7V, a capacity of 3000mAh, and supports 5V / 2A fast charging. After a full charge, it can provide power for 8-12 hours. Battery 4 is wrapped with insulating barley paper (0.1mm thick) to prevent short circuits with the control circuit board 3 and the main body 1 cavity. The lithium battery 4 (60mm×20mm×5mm) wrapped with insulating barley paper (0.1mm thick) is placed into the remaining space of the main body 1 cavity. The positive and negative terminals of battery 4 are soldered to the power interface of the control circuit board 3 through a 10cm long silicone wire 5 (AWG24 wire diameter). Rosin is applied to the solder joint to prevent oxidation. 2cm of wire 5 is left unsoldered. The length should be adjusted to prevent the wire 5 from being pulled and broken after the battery 4 is installed; after welding, use insulating tape to fix the position of the battery 4 to prevent the battery 4 from shaking during use.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent acoustic and optical feedback device adapted to the bow of a bowed string instrument, characterized in that: The device includes a main body (1), a back cover (2), a control circuit board (3), a battery (4), a wire (5), a Velcro strap (6), a light strip (7), a button (8), an adjustment knob (9), a stop block (10), and a gasket (11). The main body (1) has an internal cavity, and the control circuit board (3) and the battery (4) are installed in the cavity. The bottom of the main body (1) has a sliding groove (12), and the back cover (2) is fitted to the sliding groove (12). Both the main body (1) and the back cover (2) have semi-circular notches through which the wire (5) passes. The semi-circular notch connects the control circuit board (3) and the light strip (7); the main body (1) has an opening on one side, the adjustment knob (9) is connected to the abutment (10) in a transmission manner, and the adjustment knob (9) is installed on the main body (1) and is set corresponding to the opening. The gasket (11) is respectively set on the side of the abutment (10) facing the opening and on the inner side wall of the opening of the main body (1); the magic strip (6) is set on one side of the light strip (7), and the button (8) is installed on the main body (1) and electrically connected to the control circuit board (3).

2. The intelligent acoustic and optical feedback device adapted to a bowed string instrument as described in claim 1, characterized in that: The main body (1) is also provided with a switch hole and a charging hole (13). The button (8) is embedded in the switch hole. The control circuit board (3) is provided with a charging interface, and the charging interface corresponds to the position of the charging hole (13).

3. The intelligent acoustic and optical feedback device adapted to a bowed string instrument as described in claim 1, characterized in that: The adjustment knob (9) is threadedly connected to the main body (1). Rotating the adjustment knob (9) can cause the stop block (10) to move in a direction close to or away from the opening of the main body (1).

4. The intelligent acoustic and optical feedback device adapted to a bowed string instrument as described in claim 1, characterized in that: The light source type of the light strip (7) includes at least one of RGB multi-color light source, single-color light source, cold light source, night light source and fluorescent light source, and the button (8) can control the light strip (7) to realize the functions of switching, RGB stepless color temperature adjustment, brightness adjustment, light flashing mode switching, light rhythm with music and timed switching.

5. The intelligent acoustic-optical feedback device adapted to a bowed string instrument as described in claim 1 or 4, characterized in that: The magic strip (6) is a detachable structure. The magic strip (6) can be used to fix the light strip (7) to any position on the bow of a bowed string instrument. The light strip (7) can be repeatedly removed and installed through the magic strip (6).

6. The intelligent acoustic and optical feedback device adapted to a bowed string instrument as described in claim 1, characterized in that: The pad (11) is made of an elastic anti-slip material, which includes silicone or rubber, and the thickness of the pad (11) is 1mm-3mm.

7. The intelligent acoustic and optical feedback device adapted to a bowed string instrument as described in claim 1, characterized in that: The battery (4) is a rechargeable lithium battery, and the charging interface on the control circuit board (3) is a Type-C interface. The Type-C interface is electrically connected to the battery (4) and can be used to charge the battery (4).

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