Assistive string-fretting device for guitar playing

Abstract

Disclosed in the present application is an assistive string-fretting device for guitar playing, which relates to the technical field of musical-instrument aids. The assistive string-fretting device comprises a support base and a plurality of elastic string-pressing arms connected at one end to the support base, wherein the support base is provided with a connector which can be detachably connected to a guitar, and the elastic string-pressing arms are each provided with a button and a string-fretting block. The assistive string-fretting device further comprises at least one string-pressing control rod connected to buttons and / or string-fretting blocks, wherein the string-pressing control rod is perpendicular to the support base and passes through at least one elastic string-pressing arm; each corresponding elastic string-pressing arm is provided with a clearance channel through which a corresponding string-pressing control rod passes; a reset structure is provided between the string-pressing control rod and the support base; and each clearance channel is a channel consisting of a clearance hole arranged in the corresponding elastic string-pressing arm or a notch groove arranged in the edge of the corresponding elastic string-pressing arm. The present application can facilitate the mounting of more elastic string-pressing arms, thereby enabling one instance of mounting to satisfy the playing of more chords.

Description

Auxiliary string pressing device for guitar playing TECHNICAL FIELD

[0001] The present application relates to the technical field of musical instrument aids, in particular to an auxiliary string pressing device for guitar playing. BACKGROUND

[0002] Guitar is a very common and mainstream musical instrument, which is widely used in the creation of various music and is a relatively affordable musical instrument. However, due to the small distance between adjacent strings, the adjacent strings are often pressed by mistake during the learning and playing of chords, resulting in muting and a large number of chords. Beginners cannot quickly and accurately switch chords because they cannot remember or accurately remember the chords. In addition, the direct contact between the strings and the fingers causes the fingers to ache, which reduces the interest of beginners. Therefore, an aid is born, which uses the pressing of multiple pressing keys of the aid to drive the pressing plate to move, so that the string pressing block arranged on the pressing plate is in contact with the string to realize chord playing. The pressing plate in the initial aid is arranged in a flat manner (CN108538272B), and the number of chords that can be played after one-time installation is small. Therefore, an aid in which the pressing plates are arranged in a staggered manner along the thickness direction appears (CN217933134U, CN217955420U), which increases the number of chords that can be played after one-time installation and reduces the frequency of pressing plate replacement, making the use more convenient. However, due to the large volume of the pressing keys in the existing aid, the pressing keys connected to the lower pressing plate need to avoid the upper pressing plate to be pressed. Since the pressing keys in the prior art have a large volume, in order to provide sufficient space for the pressing keys connected to the lower pressing plate, the interval between the two upper pressing plates is large. On the one hand, it greatly affects the number distribution of the upper pressing plate, thereby greatly limiting the number of pressing plates arranged, and thereby greatly affecting the number of chords that can be played after one-time installation of the aid. On the other hand, when the same string needs to be pressed at multiple pitches, in order to avoid interference between the upper pressing plate and the pressing key passing through from below or between the pressing block connected to the upper pressing plate and the lower pressing plate, the pressing plate needs to be made into a special shape according to the distribution to meet the use requirements.

[0003] The auxiliary string pressing device of the prior art has the following problems: the elastic string pressing arms need to have a certain thickness and width to consider the elasticity and rigidity of the elastic string pressing arms, and only four elastic string pressing arms can be arranged on the width of the support seat; meanwhile, the elastic string pressing arms need to have enough space to accommodate the elastic string pressing arms and the keys on the elastic string pressing arms to extend to the outer layer of the device, and the elastic string pressing arms can be stacked at most two layers; therefore, the keys that can be arranged on one auxiliary string pressing device are limited; at most, ten keys can be arranged on one auxiliary string pressing device according to the current structure and reasonable layout; this is obviously insufficient for stringed instruments with a large number of chords; however, fortunately, the number of commonly used chords of a guitar is not large, but ten keys are still slightly insufficient; it is necessary to increase the elastic string pressing arms, and the original two layers of elastic string pressing arms cannot accommodate the increased elastic string pressing arms, so it is necessary to increase the original two layers of elastic string pressing arms to three layers or more; meanwhile, the number of elastic string pressing arms extending from the support seat is larger, and the elastic string pressing arms extending from the support seat are closely adjacent to each other, so that the vertically arranged string pressing control rods connected with the keys and the string pressing blocks close to the support seat are blocked by the closely adjacent elastic string pressing arms; the mounting form of the prior art cannot solve the above technical problems. Technical problem

[0004] Therefore, the auxiliary string pressing device for playing a guitar is provided, which can use thinner string pressing control rods to penetrate through a plurality of stacked elastic string pressing arms to reduce the space occupied by the pressing members, so as to solve the technical problem of the large limitation of the number of installable elastic string pressing arms. Technical solution

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An auxiliary string pressing device for playing a guitar, comprising a support seat and a plurality of elastic string pressing arms connected with the support seat at one end, the support seat being provided with a connecting member capable of being connected with the guitar in a separable manner, the elastic string pressing arms being provided with keys and string pressing blocks, wherein at least one string pressing control rod connected with the keys and / or the string pressing blocks is further included, the string pressing control rod being perpendicular to the support seat and penetrating through at least one elastic string pressing arm, the corresponding elastic string pressing arm being provided with an avoidance channel for the corresponding string pressing control rod to move through, and a reset structure being arranged between the string pressing control rod and the support seat, wherein the avoidance channel is a channel composed of avoidance holes arranged on the corresponding elastic string pressing arm or notch grooves arranged on the edge of the corresponding elastic string pressing arm.

[0007] Further, the reset structure is an elastic string pressing arm, one end of the elastic string pressing arm being fixed on the support seat, the other end of the elastic string pressing arm extending out, and the corresponding string pressing control rod being connected with the extending end of the elastic string pressing arm.

[0008] Further, the support seat is further provided with a joystick fixing frame, the string pressing joystick is movably arranged through the corresponding joystick fixing frame, and the joystick fixing frame is provided with a reset structure.

[0009] Further, the joystick fixing frame is a portal frame, the crossbeam of the portal frame is located above the elastic string pressing arm of the top layer, and the corresponding string pressing joystick is movably arranged through the crossbeam.

[0010] Further, when the string pressing joystick passes through the middle position of the corresponding elastic string pressing arm, the avoiding channel is located at the middle position of the elastic string pressing arm and forms a complete through hole.

[0011] Further, when the string pressing joystick passes through the space between two adjacent elastic string pressing arms, the avoiding channel is a through hole formed by splicing the notch grooves arranged on the adjacent elastic string pressing arms.

[0012] Further, the avoiding hole and the notch groove are both provided with a reinforcing rib extending along the edge of the avoiding channel and located on the surface of the corresponding elastic string pressing arm.

[0013] Further, when the elastic string pressing arm is combined with the string pressing joystick and the elastic string pressing arm, a three-layer or four-layer structure can be formed.

[0014] Further, the cross section of the string pressing joystick is in an elongated shape with a length along the extending direction of the neck being longer and a length perpendicular to the extending direction of the neck being shorter.

[0015] Further, the key and / or the string pressing joystick are both provided with a detachable cap, and the cap can be sleeved on the outside of the key and / or the string pressing joystick. Advantageous effects

[0016] From the above technical solution, it can be seen that the advantages of the present application are:

[0017] 1. In the present application, a relatively thin string pressing joystick is used to pass through a plurality of stacked elastic string pressing arms, and the influence on the layout of each layer of elastic string pressing arms is reduced by occupying as little space as possible. After installation, the more the number of elastic string pressing arms, the more the number of chords that can be played, and the frequency of disassembly, replacement and assembly of the elastic string pressing arms is further reduced.

[0018] 2. In the present application, the arrangement of the string pressing joystick has little influence on the layout of the elastic string pressing arms, and the elastic string pressing arms can be arranged in more layers. Since the string pressing joystick can pass through the elastic string pressing arms, the elastic string pressing arms do not need to deliberately avoid the string pressing joystick, so that the shape of the elastic string pressing arms is simpler and easier to process.

[0019] 3. The linkage arm is used in the application, and multiple elastic string pressing arms can be actuated by one key pressing, one key one string, making playing more relaxed.

[0020] 4. The cap is installed on the string pressing lever in the application, making finger pressing more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings constituting a part of the application are used to provide further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application.

[0022] Fig. 1 is a schematic diagram of the use state of the application.

[0023] Fig. 2 is an exploded schematic diagram of the auxiliary string pressing device in Fig. 1 of the application.

[0024] Fig. 3 is a schematic diagram of the auxiliary string pressing device in Fig. 1 after removing the top elastic string pressing piece.

[0025] Fig. 4 is a schematic diagram of the auxiliary string pressing device after installing an elastic string pressing piece.

[0026] Fig. 5 is a schematic diagram of the auxiliary string pressing device in Fig. 4 after installing another elastic string pressing piece.

[0027] Fig. 6 is a schematic diagram of the auxiliary string pressing device in Fig. 5 after installing another elastic string pressing piece.

[0028] Fig. 7 is a schematic diagram of another auxiliary string pressing device.

[0029] Fig. 8 is a schematic diagram of the auxiliary string pressing device in Fig. 7 after removing the cap.

[0030] Fig. 9 is a schematic diagram of another auxiliary string pressing device.

[0031] Fig. 10 is a schematic diagram of the auxiliary string pressing device in Fig. 9.

[0032] Fig. 11 is a schematic diagram of another auxiliary string pressing device.

[0033] Fig. 12 is a schematic diagram of the auxiliary string pressing device in Fig. 11.

[0034] Fig. 13 is a schematic diagram of the bracket seat of the auxiliary string pressing device.

[0035] BRIEF DESCRIPTION OF DRAWINGS: guitar 100, bracket seat 1, bracket body 11, pressing part 12, adjusting bolt 13, elastic string pressing piece 2, elastic string pressing arm 21, avoiding hole 211, reinforcing rib 212, notch groove 213, string pressing block 22, key 23, linkage arm 231, string pressing lever 24, reset structure 26, sleeve 27, cap 28, gantry 3, fixing bolt 4. Best mode for carrying out the invention

[0036] For the purpose of making the present application, technical solutions and advantages more clear, the present application is further described in detail below in combination with embodiments and drawings. Herein, the illustrative embodiments of the present application and their descriptions are used to explain the present application, but not as a limitation to the present application.

[0037] Referring to FIG. 1 to FIG. 13, as shown in FIG. 1 to FIG. 10, the present embodiment provides an auxiliary string pressing device for playing guitar, which comprises a support base 1 and a plurality of elastic string pressing pieces 2 arranged on the support base 1, the support base 1 has a connecting piece capable of being connected with a guitar 100 in a separable manner, one end of the elastic string pressing piece 2 is fixed on the support base 1, and the string pressing part of the elastic string pressing piece 2 is at least one elastic string pressing arm 21 arranged in a flat manner, at least one key 23 and at least one string pressing block 22 are arranged on one elastic string pressing arm 21, a plurality of string pressing blocks 22 can realize simultaneous multi-point pressing of the strings, and a plurality of keys 23 are arranged on the elastic string pressing arm 21, the distance between the keys 23 arranged on different elastic string pressing arms 21 can be adjusted and combined for use, so that the chord playing is more convenient. The auxiliary string pressing device further comprises at least one string pressing control rod 24 connected with the keys and / or the string pressing blocks, the string pressing control rod 24 is perpendicular to the support base 1 and passes through at least one elastic string pressing arm 21, the corresponding elastic string pressing arm 21 is provided with an avoidance passage for the corresponding string pressing control rod 24 to pass through, and a reset structure 26 for driving the string pressing control rod 24 to rise and reset is arranged between the string pressing control rod 24 and the support base 1.

[0038] Specifically, the key 23 of the present application mainly plays a role in helping the left hand to find the pressing point of the elastic string pressing arm 21 by touch and / or vision during playing. For the elastic string pressing arm 21 located in the lower layer which does not expose on the surface of the whole device, the key 23 needs to be connected with the elastic string pressing arm 21 through the string pressing lever 24, so that the key 23 can expose on the surface of the device, so that the finger can act on the elastic string pressing arm 21 from the outside through the key 23. The part of the string pressing lever 24 for penetrating through the elastic string pressing arm 21 has an elongated shape with a length along the direction of the neck and a short length perpendicular to the direction of the neck, so that the part as a whole is flat, the width of the string pressing lever 24 is smaller than the width of the elastic string pressing arm 21, preferably, the string pressing lever 24 as a whole is flat or one end for penetrating through the elastic string pressing arm 21 is flat, the size of the string pressing block 22 connected with the string pressing lever 24 is equivalent to the size of the string pressing block 22 directly connected with the elastic string pressing arm 21, avoiding that the size of the string pressing block 22 connected with the string pressing lever 24 is too small to affect the reliability of the string pressing during playing, the string pressing lever 24 is arranged to occupy as little space as possible for each layer of elastic string pressing piece 2 to reduce the influence on the layout number of the elastic string pressing arm 21, such as the installation of the elastic string pressing piece 2a, the elastic string pressing piece 2b and the elastic string pressing piece 2c in Figure 2, and the cooperation of the elastic string pressing piece 2d and the elastic string pressing piece 2e with the string pressing lever 24 in Figure 2, in the limited space, the more the number of elastic string pressing arms 21 after installation, the more the number of playable chords, further reducing the frequency of disassembly and replacement of the elastic string pressing piece 2, and since the elastic string pressing arm 21 does not need to deliberately avoid the string pressing lever 24, the influence on the strip structure of the extension segment of the elastic string pressing arm 21 directly connected with the support seat 1 is small, the structure is simple, convenient for processing, the stacked multiple layers of elastic string pressing pieces 2 are connected with the support seat 1 by penetrating through the multiple layers of elastic string pressing pieces 2 by a plurality of fixing bolts 4, so that the elastic string pressing piece 2 can be replaced as needed, and the replacement of the elastic string pressing piece 2 can realize the replacement of multiple elastic string pressing arms 21 at a time, making the replacement of the elastic string pressing arm 21 simpler, and making the present application more suitable for more chord playing, during use, the string pressing lever 24 moves up and down in the corresponding avoiding channel under the action of the external pressing force and the reset structure 26 to make the corresponding string pressing block 22 press down or reset.

[0039] As shown in Figures 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the reset structure 26 is an elastic string pressing arm 21, one end of the elastic string pressing arm 21 is fixed on the support seat 1, and the other end of the elastic string pressing arm 21 extends out, and the corresponding string pressing lever 24 / the corresponding string pressing block 22 is connected to the extended end of the elastic string pressing arm 21.

[0040] Specifically, the elastic string pressing arm 21 can be fixed by connecting one end of the elastic string pressing arm 21 to the support seat 1 through a corresponding fixing screw 4, or by fixing the elastic string pressing arm 21 through a fixing screw 4 that fixes the elastic string pressing piece 2 and penetrates through the corresponding elastic string pressing arm 21, or by clamping the elastic string pressing arm 21 by relying on the two connected elastic string pressing pieces 2. For the elastic string pressing arm 21 located on the upper layer, since it is a certain distance from the guitar string that needs to be pressed, the string pressing block 22 needs to be connected to the elastic string pressing arm 21 through the string pressing operating rod 24, so that the string pressing block 22 can be close to the string that needs to be pressed. As shown in FIGS. 4, 5, and 6, for the elastic string pressing arm 21 located on the lowermost layer, the string pressing operating rod 24 needs to be connected to the key 23, and the avoiding channel is located above the elastic string pressing arm 21. As shown in FIGS. 7 and 8, for the elastic string pressing arm 21 located on the uppermost layer, the string pressing operating rod 24 needs to be connected to the string pressing block 22, and the avoiding channel is located below the elastic string pressing arm 21. As shown in FIGS. 2, 9, and 10, for the device provided with at least three layers of elastic string pressing arms 21, the elastic string pressing arm 21 located on the middle layer needs to be connected to the string pressing block 22 through a string pressing operating rod 24 and connected to the key 23 through a string pressing operating rod 24. Here, the string pressing operating rod 24 connected to the string pressing block 22 and the string pressing operating rod 24 connected to the key 23 are generally located on the same axis, and the avoiding channel is distributed on the upper and lower sides of the elastic string pressing arm 21. Among them, the string pressing block 22 can be a strip column or designed into an inverted L shape or a multi-tooth shape formed by splicing multiple different shapes.

[0041] The reset structure 26 can also be a floating frame connected to the string pressing operating rod 24 and elastically floating on the support seat 1 by using a spring.

[0042] Specifically, the floating frame is connected to the guide piece on the support seat 1 in a lifting sliding manner, and the spring sleeved on the guide piece abuts against the floating frame, so that the floating frame can automatically rise and reset. This structure is mainly used when the floating frame is located above all the elastic string pressing arms 21. Since the string pressing operating rod 24 will not be deflected during lifting, the size of the avoiding channel can be basically the same as that of the string pressing operating rod 24, so as to minimize the influence of the avoiding channel on the strength of the elastic string pressing arm 21.

[0043] As an alternative, the string pressing operating rod 24 is not connected to the elastic string pressing arm 21 in the structure in which the lever fixing frame cooperates with the string pressing operating rod 24 and sets the reset spring, and the two ends of the string pressing operating rod 24 are connected to the key 23 and the string pressing block 22.

[0044] In the embodiment, the lever fixing frame is arranged on the support seat 1, the pressing string lever 24 is movably arranged through the corresponding lever fixing frame, and the lever fixing frame is provided with a reset structure 26 for driving the pressing string lever 24 to rise and reset.

[0045] In the embodiment, the reset structure 26 arranged on the lever fixing frame is a reset spring or a disc spring arranged between the corresponding pressing string lever 24 and the support seat 1.

[0046] The lever fixing frame is fixedly integrated with the support seat 1, and the lever fixing frame is in a plate shape or a strip shape. When the lever fixing frame is in a plate shape, the lever fixing frame is parallel to the string. The lever fixing frame is arranged at the lowermost layer or the uppermost layer to minimize the thickness of the application. The pressing string lever 24 is slidably arranged through the through hole arranged on the lever fixing frame. The reset structure 26 is a reset spring arranged on the pressing string lever 24. The reset spring is limited by a limiting boss arranged on the pressing string lever 24 or by an end plate arranged on the top of the pressing string lever 24.

[0047] Another structure of the lever fixing frame is shown in FIGS. 11 and 12. The lever fixing frame is a portal frame 3. The crossbeam of the portal frame 3 is arranged above the uppermost elastic pressing string piece 2. The corresponding pressing string lever 24 is movably arranged through the crossbeam. The installation form of the reset structure 26 is the same as described above. The use of the portal frame 3 makes the position of the pressing string lever 24 more flexible, and the structure of the application is more simple.

[0048] In the embodiment, the avoiding passage is composed of an avoiding hole 211 arranged on the corresponding elastic pressing string arm 21 or at least one notch groove 213 arranged on the edge of the corresponding elastic pressing string arm 21.

[0049] Specifically, when the pressing string lever 24 passes through a plurality of avoiding passages, a plurality of avoiding holes 211 are coaxially arranged, and the notch groove 213 is arranged in engagement with the pressing string lever 24, so that the structure of the pressing string lever 24 is simple.

[0050] The avoiding passage can also be composed of opposite notch grooves 213 arranged on two adjacent elastic pressing string arms 21, so that the occupied space of the pressing string lever 24 is dispersed on the two elastic pressing string arms 21, and the influence on the strength of the elastic pressing string arm 21 is reduced. If necessary, as shown in the elastic pressing string piece 2b in FIG. 2, the avoiding hole 211 or the notch groove 213 can also be arranged on the corresponding elastic pressing string arm 21.

[0051] In the embodiment of the present application, preferably, when the string-pressing operating rod 24 passes through the middle position of the corresponding elastic string-pressing arm 21 , the avoidance channel is located in the middle position of the elastic string-pressing arm 21 and forms a complete through hole, which is the avoidance hole 211 .

[0052] In the embodiment of the present application, preferably, when the string-pressing lever 24 passes through two adjacent elastic string-pressing arms 21 , the avoidance passage is a through hole formed by splicing the respective notches 213 provided on the adjacent elastic string-pressing arms 21 .

[0053] In the embodiment of the present application, when the elastic string-pressing arm 21 and the string-pressing operating rod 24 are used in combination, a three-layer or four-layer structure can be formed to arrange more string-pressing blocks 22 .

[0054] Since the provision of the avoidance hole 211 and / or the notch groove 213 will reduce the effective connection width at the corresponding position of the elastic string-pressing arm 21, thereby reducing the strength of the elastic string-pressing arm 21, in order to improve the strength of the elastic string-pressing arm 21, the avoidance hole 211 and the notch groove 213 are both provided with reinforcing ribs 212 located on the surface of the corresponding elastic string-pressing arm 21 and extending along the edge of the avoidance channel.

[0055] Specifically, when the elastic string-pressing arm 21 has one or more notches 213, the arrangement of the reinforcing ribs 212 can refer to the reinforcing ribs 212 on the elastic string-pressing piece 2b in Figure 2, and irregular curved strip-shaped ribs are used to reinforce along the edge of the notch 213 or to achieve multiple reinforcements at the same time. When the elastic string-pressing arm 21 has an avoidance hole 211, the arrangement of the reinforcing ribs 212 can refer to the arrangement of the reinforcing ribs 212 on the elastic string-pressing piece 2 in Figure 3, and the reinforcing ribs 212 can be ring-shaped or multi-point surrounding.

[0056] The different elastic string-pressing arms 21 of this application are unidirectionally linked via a linkage arm 231. This unidirectional linking is described in detail in Chinese Patent CN 108538272B. In this embodiment, as shown in Figures 3, 6, and 7, at least one of the keys 23 or at least one of the elastic string-pressing arms 21 is provided with a linkage arm 231. The linkage arm 231 abuts above or below at least one corresponding elastic string-pressing arm 21. When the linkage arm 231 abuts above the corresponding elastic string-pressing arm 21, pressing the key 23 / elastic string-pressing arm 21 with the linkage arm 231 can drive the other associated elastic string-pressing arms 21 downward to play the strings. When the linkage arm 231 abuts below the corresponding elastic string-pressing arm 21, pressing the associated elastic string-pressing arm 21 downward to play the strings will drive the elastic string-pressing arms 21 with the linkage arm 231 to simultaneously press downward, thereby playing the strings.

[0057] In the embodiments of the present application, as shown in FIG. 7 and FIG. 8, the key 23 and / or the pressing string lever 24 is provided with a detachable cap 28. Since the pressing string lever 24 is small in size and not easy to press, the cap 28 can increase the finger contact area of the pressing string lever 24 and prevent accurate pressing. The cap 28 can be printed or engraved with corresponding chord labels to make playing more convenient.

[0058] Specifically, the cap 28 is buckled on the key 23, and the top of the pressing string lever 24 is detachably sleeved with a sleeve 27 capable of buckling with the key 23, so as to facilitate the unified arrangement of the cap 28 and the interchangeable use. As for the elastic string pressing arm 21 on the uppermost layer of the front face, the key 23 thereon can be protruding or not protruding, and only the finger touch of the pressing point can be different from the rest of the elastic string pressing arm 21. At this time, the key 23 thereon can be a patch or an inlay made of different materials, or have different surface textures, or have a groove, or even have a specific symbol, pattern, or color printed on the position needing pressing. When the key 23 is not protruding, the cap 28 is not needed to be installed.

[0059] As shown in FIG. 13, the connecting member provided on the support seat 1 and capable of being detachably connected with the guitar 100 is a pressing member 12 threadedly installed on the frame 11 of the support seat 1 and capable of abutting against the side face of the guitar 100. The pressing member 12 is abutted against the guitar 100 by screwing the pressing member 12 to realize the fixed installation of the present application.

[0060] In actual use, the connecting member can also be a strip-shaped elastic band or an elastic clamping arm mechanism.

[0061] In the embodiments of the present application, the support seat 1 is further provided with a plurality of adjusting bolts 13 threadedly installed and capable of abutting against the front face of the guitar 100. The adjusting bolts 13 are used to adjust the gap between the pressing string block 22 and the strings, so that the pressing string block 22 can be more quickly contacted or separated.

[0062] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the embodiments of the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary string-pressing device for guitar playing, comprising a support base (1) and a plurality of elastic string-pressing arms (21) connected to the support base (1) at one end, wherein the support base (1) has a connecting piece that can be detachably connected to the guitar (100), and the elastic string-pressing arm (21) is provided with a key (23) and a string-pressing block (22), characterized in that: The invention also includes at least one string-pressing lever (24) connected to the key and / or the string-pressing block, wherein the string-pressing lever (24) is perpendicular to the support seat (1) and passes through at least one elastic string-pressing arm (21), and the corresponding elastic string-pressing arm (21) is provided with an avoidance channel for the corresponding string-pressing lever (24) to move through, and a reset structure (26) is provided between the string-pressing lever (24) and the support seat (1), wherein the avoidance channel is a channel composed of an avoidance hole (211) provided on the corresponding elastic string-pressing arm (21) or a notch groove (213) provided on the edge of the corresponding elastic string-pressing arm (21).

2. The auxiliary string-pressing device for guitar playing according to claim 1, characterized in that: The reset structure (26) is an elastic string-pressing arm (21), one end of which is fixed to the bracket seat (1), and the other end of which is extended, and the corresponding string-pressing operating rod (24) is connected to the extended end of the elastic string-pressing arm (21).

3. The auxiliary string-pressing device for guitar playing according to claim 1, wherein: A joystick fixing frame is also provided on the support seat (1), and the string-pressing joystick (24) moves through the corresponding joystick fixing frame, and a reset structure (26) is provided on the joystick fixing frame.

4. The auxiliary string-pressing device for guitar playing according to claim 3, characterized in that: The joystick fixing frame is a gantry (3), a crossbeam of the gantry (3) is located above the elastic string-pressing arm (21) on the top layer, and the corresponding string-pressing joystick (24) moves through the crossbeam.

5. The auxiliary string-pressing device for guitar playing according to claim 1, wherein: When the string-pressing operating rod (24) passes through the middle position of the corresponding elastic string-pressing arm (21), the avoidance channel is located in the middle position of the elastic string-pressing arm (21) and forms a complete through hole.

6. The auxiliary string-pressing device for guitar playing according to claim 1, wherein: When the string-pressing operating rod (24) passes between two adjacent elastic string-pressing arms (21), the avoidance passage is a through hole formed by splicing the respective notches (213) provided on the adjacent elastic string-pressing arms (21).

7. The auxiliary string-pressing device for guitar playing according to claim 1, characterized in that: The avoidance hole (211) and the notch groove (213) are both provided with a reinforcing rib (212) located on the surface of the corresponding elastic string-pressing arm (21) and extending along the edge of the avoidance channel.

8. The auxiliary string-pressing device for guitar playing according to claim 1, wherein: The cross section of the string-pressing operating rod (24) is in an elongated shape with a long length along the extending direction of the neck and a short length perpendicular to the extending direction of the neck.

9. The auxiliary string-pressing device for guitar playing according to claim 1, wherein: The button (23) and / or the string-pressing lever (24) are provided with a detachable cap (28), wherein the cap (28) can be sleeved on the outside of the button and / or the string-pressing lever.

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