Sound interruption control device

Abstract

The invention relates to a sound break control device which comprises a shell, a mainboard and a mechanical button, an audio output jack is arranged at a first end of the shell, an audio input plug is arranged at a second end of the shell, and the audio input plug is used for being inserted into a sound hole of a guitar and connected with an internal circuit of the guitar to obtain a guitar sound signal. The mainboard is arranged in the shell and is integrated with a signal processing module and a grounding module, the signal processing module is connected to a guitar original signal line (Hot) through the audio input plug, and the grounding module is connected to a metal part of the guitar or a grounding terminal (GND) of external equipment. The mechanical button is arranged on the housing, and the pressing action of the mechanical button controls the connection and disconnection between the signal processing module and the grounding module, thereby achieving the sound break control of the guitar. According to the sound break control device, the pressing sensitivity is enhanced through the mechanical button, the touch pressing comfort of a user is improved through the arrangement of the mechanical button, and the playing hand feeling of guitars is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic guitar accessories, and particularly to a staccato control device. Background Art

[0002] With the improvement of the living standards of humans, many people like various musical instruments, such as pianos, guitars, violins, etc. In particular, two musical instruments, guitars and ukuleles, are deeply loved by the public because of their characteristics of being portable and playable anywhere. The staccato button is used to control the sound on and off of guitar-like musical instruments. During the process of a user touching the guitar strings to play, the user needs to touch the staccato button at any time to cooperate to complete the performance and creation of music. Therefore, the pressing comfort of the staccato button is very crucial. The current guitar staccato buttons on the market are directly integrated at a suitable position on the guitar shell. Like ordinary button switches, they have elastic reset, and achieve mute or sound output by pressing and releasing. However, due to their small size, simple elastic connection, etc., they may cause uncomfortable pressing, sensitivity imbalance and other adverse effects. Summary of the Invention

[0003] The present invention aims to provide a staccato control device to solve the technical problems that the staccato buttons on existing guitars may cause uncomfortable pressing, sensitivity imbalance and other adverse effects due to their small size, simple elastic connection, etc.

[0004] The present invention discloses a staccato control device, including:

[0005] A housing, at its first end is provided with an audio output jack, and at its second end is provided with an audio input plug. The audio input plug is used to be inserted into the guitar sound hole and electrically connected to the internal circuit of the guitar to obtain the electric guitar sound signal;

[0006] A main board, disposed inside the housing. The main board is integrated with a signal processing module and a grounding module. The signal processing module is connected to the original guitar signal line through the audio input plug, and the grounding module is connected to the metal part of the guitar or the grounding terminal of an external device;

[0007] A mechanical button, disposed on the surface of the housing. The pressing action of the mechanical button controls the conduction or disconnection between the signal processing module and the grounding module.

[0008] In one embodiment, the audio input plug is connected to the housing through a rotating shaft, the axial direction of the audio input plug and the rotating shaft are perpendicular to each other, and the audio input plug can swing relative to the housing around the rotating shaft to adapt to the installation angles of different guitar sound holes.

[0009] In one of the embodiments, the shell is provided with a rotation groove and a swinging notch connected to the rotation groove, the rotation shaft is limited in the rotation groove and can rotate relative to the shell in the rotation groove, the audio input plug is connected to the rotation shaft and rotates synchronously with the rotation shaft, and the audio input plug can swing in the swinging notch; wherein, one of the rotation shaft and the groove wall of the rotation groove is provided with a glass bead, and the other is provided with a glass bead groove, at least one of the glass bead and the glass bead groove is plural in number, and when the audio input plug is swung to different installation angles adapted to the guitar sound hole, the glass bead is aligned and embedded in the glass bead groove.

[0010] In one embodiment, the end of the audio input plug facing away from the rotating shaft is a conductive head, the audio input plug is provided with a wire hole extending along its axial direction, and the mainboard is externally connected with a conductive wire that passes through the rotating shaft and is connected to the conductive head through the wire hole.

[0011] In one of the embodiments, the mute control device further comprises a mode switching switch movably disposed on the housing, wherein the mode switching switch is used to control the switching of the mechanical button between the first trigger logic mode and the second trigger logic mode;

[0012] In the first trigger logic mode, when the mechanical button is pressed, the signal processing module is connected to the grounding module to achieve guitar mute, and when the mechanical button is released, the signal is output normally;

[0013] In the second trigger logic mode, the mechanical button is pressed and the signal is output normally, and the mechanical button is released, and the signal processing module is connected to the grounding module to achieve guitar disconnection.

[0014] In one embodiment, the mode switching switch is a double-pole double-throw switch, which changes the signal path logic by switching the first contact and the second contact in the circuit, and the second contact is connected to the reverse logic module.

[0015] In one of the embodiments, the mechanical button is a mechanical keyboard-type shaft structure, a light-transmitting layer is provided on the surface of the mechanical button, and an LED indicator light is integrated inside the mechanical button.

[0016] In one of the embodiments, an audio socket is provided inside the mute control device, the input end of the audio socket is electrically connected to the mainboard, the output end of the audio socket is threadedly connected to the shell, the output end of the audio socket is formed with the audio output jack, and the audio output jack is exposed through a through hole opened in the shell.

[0017] In one of the embodiments, the mechanical button is disposed on a side of the housing facing away from the audio input plug, and a pressing movement direction of the mechanical button is perpendicular to an outer wall surface of the second end.

[0018] In one of the embodiments, an anti-mistaken-touch module is integrated on the main board. When the continuous triggering frequency of the mechanical button exceeds a preset threshold, the anti-mistaken-touch module can forcibly maintain the current signal path state.

[0019] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0020] The embodiment of the present invention provides a mute control device. On the one hand, the mute control device can adapt to the usage habits of more users by changing the volume and shape of the mechanical button, thereby improving the user's pressing comfort and enhancing the playing feel of guitar and other related instruments. On the other hand, the mechanical button is more sensitive than the conventional mute button, and it is easier to touch and press, that is, the touch sensitivity of the pressing operation is greatly enhanced, thereby improving the user's playing effect on guitar and other related instruments. Moreover, the mute control device of the present application can be carried at any time, plug and play, and adapt to the sound holes of different guitars, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of a sound cutoff control device according to an embodiment of the present application;

[0023] Figure 2 for Figure 1 Another perspective view of the mute control device shown;

[0024] Figure 3 for Figure 1 A schematic diagram of the explosion structure of the cut-off control device shown;

[0025] Figure 4 for Figure 1 The working circuit logic diagram of the mute control device shown;

[0026] Figure 5 This is a schematic diagram of the overall structure of the mute control device according to the second embodiment of the present application;

[0027] Figure 6 for Figure 5Explosion structure schematic diagram of the shown staccato control device;

[0028] Figure 7 For Figure 1 Structure schematic diagram of the shown staccato control device without the outer shell.

[0029] The description of the reference numerals is as follows:

[0030] 10. Staccato control device; 100. Outer shell; 110. First end; 111. Audio output jack; 120. Second end; 130. Rotating groove; 140. Swing notch; 200. Audio input plug; 210. Conductive head; 220. Wire hole; 300. Main board; 400. Mechanical button; 410. Shaft structure; 510. Rotating shaft; 520. Glass bead groove; 530. Glass bead; 600. Conductive wire; 700. Mode change switch; 710. Double-pole double-throw switch; 800. Audio socket. Detailed implementation manners

[0031] Typical implementation manners reflecting the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different implementation manners, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are for illustrative purposes in essence and are not used to limit the present invention.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "set", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] With reference to Figure 1 and Figure 2 , the present application provides a novel staccato control device 10, which is detachably connected to the sound hole position of a guitar and electrically connected to the internal circuit of the guitar. The user presses the button on the staccato control device 10 to realize the on / off of the audio signal of the guitar. The staccato control device 10 includes an outer shell 100 and a main board 300 (refer to Figure 3) and a mechanical button 400. The first end 110 of the housing 100 is provided with an audio output jack 111, which is used for the normal output of the guitar audio signal; the second end 120 of the mute control device 10 is provided with an audio input plug 200, which is inserted into the guitar sound hole and electrically connected to the internal circuit of the guitar to obtain the sound signal of the guitar.

[0035] Preferably, in one embodiment, a replaceable interface (not shown) is provided at one end of the audio input plug 200, and the replaceable interface includes but is not limited to a clamping interface and a welding interface. The clamping interface is fixed to the edge of the guitar sound hole by an elastic metal sheet, and the welding interface is electrically connected to the internal circuit of the guitar through a wire.

[0036] in, Figure 1 As shown, the first end 110 and the second end 120 are located on different surfaces of the housing, so as not to affect the insertion of the audio input plug 200 into the sound hole of the guitar. Figure 3 As shown in the figure, the housing 100 is a hollow structure, and the mainboard 300 is arranged inside the housing 100. The mainboard 300 integrates a signal processing module and a grounding module, both of which belong to integrated circuit programs. It is difficult to illustrate the structure of the mainboard 300, so it can be combined with Figure 4 The circuit logic diagram is used to clearly describe the working principle of the mute control device 10. The signal processing module is connected to the original signal line (Hot) of the guitar through the audio input plug 200, and the grounding module is connected to the metal parts of the guitar or the grounding terminal (GND) of the external device.

[0037] Combined with reference picture Figure 1 and Figure 2 The mechanical button 400 is disposed on the side of the housing 100 away from the second end 120. The mechanical button 400 and the audio input plug 200 are disposed on opposite sides of the housing 100. The pressing action of the mechanical button 400 controls the conduction or disconnection between the signal processing module and the grounding module, thereby controlling the guitar to be muted or the original signal to be output normally. Figure 4 As shown, the mechanical button 400 is connected to the signal processing module and the grounding module, that is, connected between Hot and GND. Operating the mechanical button 400 makes the signal processing module and the grounding module conductive, at which time the signal is short-circuited and the guitar is cut off; operating the mechanical button 400 makes the signal processing module and the grounding module disconnected, at which time the signal is restored and the guitar audio signal is output normally. The signal processing module includes a capacitor (C1) and a resistor (R1) connected in parallel, the capacitor (C1) has a capacitance of 10nF to 100nF, and the resistor (R1) has a resistance of 10kΩ to 100kΩ, which are used to adjust the attenuation rate when the signal is grounded.

[0038] A staccato control device 10 of the present application. On the one hand, for the staccato control device 10, the volume and shape of the mechanical button can be changed to adapt to the usage habits of more users, improve the pressing comfort of users, and enhance the playing feel of related musical instruments such as guitars. On the other hand, the mechanical button 400 is more sensitive than the conventional staccato button, and the touch and press are more relaxed, that is, the touch sensitivity of the pressing operation is greatly enhanced, thereby improving the playing effect of users on related musical instruments such as guitars. Moreover, the staccato control device 10 of the present application can be carried at any time, plug and play, adapt to the sound holes of different guitars, and has strong practicability.

[0039] Preferably, with reference to Figures 1-3 , in an embodiment, the audio input plug 200 is connected to the housing 100 through a rotating shaft 510. The axial directions of the audio input plug 200 and the rotating shaft 510 are perpendicular to each other. The audio input plug 200 swings relative to the housing 100 around the rotating shaft 510 to adapt to the installation angles of different guitar sound holes. Here, the installation angle refers to the included angle between the audio input plug 200 and the outer wall surface of the second end 120. It can be understood that in other embodiments, the audio input plug 200 can also be fixedly connected to the housing 100 and the axial direction of the audio input plug 200 is inclined to the outer wall surface of the second end 120 to form a target installation angle. During the processing of the staccato control device 10, the audio input plug 200 on the second end 120 can be processed into different installation angles according to market demands to meet the different needs of users, that is, one staccato control device 10 corresponds to an audio input plug 200 with one installation angle. Here, the installation angle of the audio input plug 200 refers to the line-plane included angle, and the range is 0-90°, which is consistent with the installation angle of the guitar sound hole.

[0040] It should be understood that if the installation angle size of the audio input plug 200 is fixed, there is no need to set the rotating shaft 510. Specifically, with reference to Figure 5 and Figure 6 , an installation channel 121 is provided at the second end 120 of the housing 100. The installation channel 121 is inclined to the outer surface of the second end 120. One end of the audio input plug 200 is threadedly inserted into the installation channel 121, and the other end of the audio input plug 200 is inserted into the sound hole of the guitar. That is, for the staccato control device 10 of the present application, the setting of the rotating shaft 510 is not limited.

[0041] Preferably, with reference to Figure 3In one embodiment, the housing 100 is provided with a rotation groove 130 and a swinging notch 140 connected to the rotation groove 130, the rotation shaft 510 is limited in the rotation groove 130 and can rotate relative to the housing 100 in the rotation groove 130, the audio input plug 200 is connected to the rotation shaft 510 and rotates synchronously with the rotation shaft 510, and the audio input plug 200 swings in the swinging notch 140. Among them, one of the end surface of the rotation shaft 510 and the groove wall of the rotation groove 130 is provided with a glass bead groove 520, and the other is provided with a glass bead 530; at least one of the glass bead 530 and the glass bead groove 520 has a plurality of glass beads, and when the audio input plug 200 swings to different installation angles adapted to the guitar sound hole, the glass bead 530 is aligned and embedded in the glass bead groove 520 to limit the swing of the audio input plug 200 relative to the housing 100, so that the angle between the audio input plug 200 and the outer wall surface of the second end 120 is stable at the aforementioned installation angle. Optionally, the number of glass beads 530 is one, the number of glass bead grooves 520 is multiple and are spaced apart around the rotating shaft 510, and during the rotation of the rotating shaft 510, the glass beads 520 jump between different glass bead grooves 520 to switch the engagement position to fix the installation angle of the audio input plug 200; the number of glass beads 530 is multiple and are spaced apart around the rotating shaft 510, and the number of glass bead grooves 520 is one, and during the rotation of the rotating shaft 510, the glass bead grooves 520 are aligned and engaged with different glass beads 530 to fix the installation angle of the audio input plug 200.

[0042] It should be noted that the common installation angles of guitar sound holes are 15 / 30 / 45 / 60 / 75 / 90 degrees, which are integer multiples of 15°. In order to more accurately match the installation angle of the guitar sound hole, preferably, in one embodiment, reference is made to Figure 2 , the number of glass beads 530 is two and they are spaced around the rotating shaft 510, the number of glass bead grooves 520 is one, and the arc between the two glass beads 530 with the rotating shaft 510 as the center is 15°; or, the number of glass beads 530 is one, the number of glass bead grooves 520 is two and they are spaced around the rotating shaft 510, and the arc between the two glass bead grooves 520 with the rotating shaft 510 as the center is 15°. When the user swings the audio input plug 200 by 15°, there is an obvious convex feeling, which can effectively remind the user of the size of the installation angle and accurately stabilize the installation angle. It should be understood that in other embodiments, without considering the reminder feel and the positioning of the glass beads 530, in this application, the number of glass beads 530 or glass bead grooves 520 is not limited, and whether the two are provided is not limited. Of course, in other embodiments, the audio input plug 200 on the mute control device 10 can be processed into various installation angle specifications of 15 / 30 / 45 / 60 / 75 / 90° to adapt to the installation angles of different sound holes.

[0043] It should be understood that, first, the cooperation between the rotating shaft 510 and the rotating groove 130 is a specific structural way to realize the rotational connection of the audio input plug 200 to the housing 100. In other embodiments, the positions of the rotating groove 130 and the swinging notch 140 can be at one end of the audio input plug 200, and the rotating shaft 510 can be fixedly connected to the housing 100, which can also achieve the same rotational connection effect. In addition, the rotating shaft 510 can also achieve rotational connection in cooperation with the axial groove. Therefore, in this application, the positions of the rotating groove 130 and the swinging notch 140 and whether they are provided or not are not limited. Any specific structural way that can realize the rotational connection between the audio input plug 200 and the housing 100 should be protected. Second, the alignment and embedding of the glass bead 530 and the glass bead groove 520 is a structure for restricting the swinging angle of the audio input plug 200 and stabilizing the installation angle of the audio input plug 200. In other embodiments, the swinging angle of the audio input plug 200 can also be restricted and the installation angle of the audio input plug 200 can be stabilized by a structure combining a convex block and an arc groove, or a damping sleeve can be used to increase the rotational damping to restrict the swinging angle of the audio input plug 200 and stabilize the installation angle of the audio input plug 200. Therefore, in this application, whether the glass bead 530 and the glass bead groove 520 are provided or not is not limited. Any specific structural way that can restrict the swinging angle of the audio input plug 200 and stabilize the installation angle of the audio input plug 200 should be protected.

[0044] Preferably, in combination with Figure 4 and Figure 7 , in an embodiment, one end of the audio input plug 200 facing away from the rotating shaft 510 is a conductive head 210. The audio input plug 200 is provided with a wire hole 220 extending along its axis. An external wire 600 of the main board 200 passes through the rotating shaft 510 and is connected to the conductive head 210 through the wire hole 220. When the audio input plug 200 is inserted into the sound hole of the guitar, the conductive head 210 is electrically connected to the original signal wire of the guitar, and both ends of the wire 600 are electrically connected to the conductive head 210 and the signal processing module on the main board 300 respectively. It should be noted that the end of the wire 600 here can be electrically connected by means such as electric welding, wire knotting, and electrical contact terminals. The wire 600 here can be a flexible conductor structure such as a flexible wire or a flexible cable. Since the swinging of the audio input plug 200 will cause relative movement with respect to the main board 300, the wire 600 will also be subject to certain movement and winding. Therefore, the wire hole 220 plays a role in guiding and preventing certain winding of the wire 600. It should be understood that in other embodiments, when the audio input plug 200 is fixedly connected to the housing and is fixed relative to the main board 300, the audio input plug 200 can be electrically connected to the signal processing module on the main board 300 through electrical contact terminals. Therefore, in this application, any means that can realize the electrical connection of the audio input plug 200 to the main board 300 should be protected.

[0045] Preferably, in one embodiment, with reference to Figures 2-4 , the staccato control device 10 further includes a mode switch 700 movably arranged on the housing 100. In Figure 4 , the mode switch 700 is used to control the switching of the mechanical button 400 between a first trigger logic mode and a second trigger logic mode: in the first trigger logic mode, when the mechanical button 400 is pressed, the signal processing module is conducted with the grounding module to achieve staccato mute of the guitar; when the mechanical button 400 is released, the original signal of the guitar is normally output and the guitar can emit sound. In the second logic trigger mode, when the mechanical button 400 is pressed, the original signal of the guitar is normally output and the guitar can emit sound; when the mechanical button 400 is released, the signal processing module is conducted with the grounding module to achieve staccato mute of the guitar. It should be understood that the setting of the mode switch 700 is to adapt to the operating habits of more guitarists for the staccato button and improve the practicability of the entire staccato control device 10. Therefore, in other embodiments, only one trigger logic is also acceptable, that is, in this application, the setting of the mode switch 700 is not limited.

[0046] Preferably, with reference to Figures 2-4 , in one embodiment, the mode switch 700 is a double-pole double-throw switch 710. The operation key 711 of the double-pole double-throw switch 710 is exposed outside the housing 100 and slidably connected to the housing 100. The operation key 711 slides back and forth at different positions on the housing 100, so that the double-pole double-throw switch 710 changes the signal path logic by switching the first contact and the second contact in the circuit, and the second contact is connected to the reverse logic module. It should be understood that the setting of the double-pole double-throw switch 710 is not limited. In this application, any specific method that can change the signal path logic should be protected. In other embodiments, a shift switch, an S-1 button switch, etc. can be used.

[0047] Preferably, in one embodiment, with reference to Figure 3 , the mechanical button 400 is a shaft structure 410 of a mechanical keyboard type. Optionally, the touch travel and trigger pressure of the shaft structure 410 can be set with reference to the key parameters on the mechanical keyboards on the market. The shaft structure 410 has high sensitivity and high pressing comfort. The surface of the mechanical button 400 is provided with a light-transmitting layer (not shown in the figure), and an LED indicator light (not shown in the figure) is integrated inside the mechanical button, which increases the light sense, provides a more accurate pressing position point for the user, and also makes the entire staccato control device 10 more beautiful and eye-catching. It should be understood that first, in other embodiments, the mechanical button 400 can also be a touch button, a silicone button, a rocker button, etc. Second, without considering the eye-catching of the entire staccato control device 10, the setting of the light-transmitting layer and the LED indicator light is not limited.

[0048] Preferably, with reference toFigure 1 , Figure 3 and Figure 7 , in one embodiment, an audio socket 800 is provided inside the staccato control device 10. The input end of the audio socket 800 is electrically connected to the main board 300, and the output end of the audio socket 800 is threadedly connected to the housing 100. The output end of the audio socket 800 forms the aforementioned audio output jack 111. The audio output jack 111 is exposed through a through hole provided on the housing 100 so that the audio output jack 111 can be externally connected to an audio device. In this embodiment, optionally, the housing 100 is provided with an expansion interface (not shown in the figure) at the first end 110. The expansion interface is integrated on the audio output jack 111. The expansion interface is used to connect an external device and transmit the audio signal or control instruction of the audio socket 800. The expansion interface is a USB-C interface or a 3.5 mm TRRS interface to export the sound signal (from the guitar) received by the audio socket 800 to an external device (such as a speaker or an amplifier). It should be understood that in other embodiments, without using the expansion interface, the sound signal of the guitar can be directly exported through the output jack 111. Therefore, in this application, whether the expansion interface is provided or not is not limited.

[0049] Preferably, with reference to Figure 1 and Figure 2 , in one embodiment, in order to further improve the operation comfort of the user for the staccato control device 10, the mechanical button 400 is provided on the side of the housing 100 away from the audio input connector 200. When the audio input plug 200 is inserted into the sound hole of the guitar, the outer surface of the second end 120 adheres to the outer wall of the guitar. The pressing direction of the mechanical button 400 is perpendicular to the outer wall surface of the second end 120. Such a design restores the setting position habit of the conventional guitar staccato button integrated on the guitar, and optimizes the pressing comfort and the contact sensitivity of the mechanical button 400 without changing the operation habit of the guitarist for the guitar staccato control. It should be understood that without considering further improving the operation comfort of the user, whether the outer surface of the second end 120 adheres to the outer wall of the guitar is not limited, and the pressing direction of the mechanical button 400 is not limited.

[0050] Preferably, in one embodiment, an anti-misoperation module (not shown in the figure) is integrated on the main board 300. When the continuous trigger frequency of the mechanical button 400 exceeds a preset threshold, the anti-misoperation module can forcibly maintain the current signal path state to stabilize the long-term or high-intensity working state of the staccato control device 10, wherein the preset threshold is 10 times / second to 20 times / second. It should be understood that in this application, whether the anti-misoperation module is provided or not is not limited.

[0051] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but rather should be broadly construed within the spirit and scope defined by the appended claims, and thus all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A sound cut-off control device, characterized in that: include: The housing has an audio output jack at a first end and an audio input plug at a second end, wherein the audio input plug is used to be inserted into a guitar sound hole and electrically connected to an internal circuit of the guitar to obtain a sound signal of the electric guitar; A mainboard is arranged inside the housing, and a signal processing module and a grounding module are integrated on the mainboard. The signal processing module is connected to the original signal line of the guitar through the audio input plug, and the grounding module is connected to the metal part of the guitar or the grounding terminal of an external device; A mechanical button is arranged on the surface of the housing, and a pressing action of the mechanical button controls the conduction or disconnection between the signal processing module and the grounding module.

2. The sound cutoff control device according to claim 1, characterized in that: The audio input plug is connected to the housing via a rotating shaft, the axial directions of the audio input plug and the rotating shaft are perpendicular to each other, and the audio input plug can swing around the rotating shaft relative to the housing to adapt to the installation angles of different guitar sound holes.

3. The sound cutoff control device according to claim 2, characterized in that: The shell is provided with a rotation groove and a swinging notch connected to the rotation groove, the rotation shaft is limited in the rotation groove and can rotate relative to the shell in the rotation groove, the audio input plug is connected to the rotation shaft and rotates synchronously with the rotation shaft, and the audio input plug can swing in the swinging notch; wherein, one of the rotation shaft and the groove wall of the rotation groove is provided with a glass bead, and the other is provided with a glass bead groove, at least one of the glass bead and the glass bead groove is plural in number, and when the audio input plug is swung to different installation angles adapted to the guitar sound hole, the glass bead is aligned and embedded in the glass bead groove.

4. The sound cutoff control device according to claim 2, characterized in that: The end of the audio input plug facing away from the rotating shaft is a conductive head. The audio input plug is provided with a wire hole extending along its axial direction. The mainboard is externally connected with a conductive wire that passes through the rotating shaft and is connected to the conductive head through the wire hole.

5. The sound cutoff control device according to any one of claims 1 to 4, characterized in that: The mute control device further comprises a mode switching switch movably arranged on the housing, wherein the mode switching switch is used to control the switching of the mechanical button between a first trigger logic mode and a second trigger logic mode; In the first trigger logic mode, when the mechanical button is pressed, the signal processing module is connected to the grounding module to achieve guitar mute, and when the mechanical button is released, the signal is output normally; In the second trigger logic mode, the mechanical button is pressed and the signal is output normally, and the mechanical button is released, and the signal processing module is connected to the grounding module to achieve guitar disconnection.

6. The sound cutoff control device according to claim 5, characterized in that: The mode switching switch is a double-pole double-throw switch, which changes the signal path logic by switching the first contact and the second contact in the circuit, and the second contact is connected to the reverse logic module.

7. The sound cutoff control device according to any one of claims 1 to 4, characterized in that: The mechanical button is a mechanical keyboard-type shaft structure, a light-transmitting layer is provided on the surface of the mechanical button, and an LED indicator light is integrated inside the mechanical button.

8. The sound cutoff control device according to any one of claims 1 to 4, characterized in that: An audio socket is provided inside the mute control device, the input end of the audio socket is electrically connected to the mainboard, the output end of the audio socket is threadedly connected to the shell, the output end of the audio socket is formed with the audio output jack, and the audio output jack is exposed through a through hole opened on the shell.

9. The sound cutoff control device according to any one of claims 1 to 4, characterized in that: The mechanical button is arranged on a side of the housing away from the audio input plug, and a pressing movement direction of the mechanical button is perpendicular to an outer wall surface of the second end.

10. The sound cutoff control device according to any one of claims 1 to 4, characterized in that: The mainboard is integrated with an anti-mistaken-touch module. When the continuous triggering frequency of the mechanical button exceeds a preset threshold, the anti-mistaken-touch module can forcibly maintain the current signal path state.

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