Quick-release mechanism of modular guitar

Abstract

A quick-release mechanism for a modular guitar includes a body and a quick-release string retainer. The body is detachable from other parts of the guitar. The body includes a soundbox and a bridge, the bridge being fixed to the surface of the soundbox. The quick-release string retainer is detachably mounted on the bridge and has multiple retaining holes, whereby multiple strings can be held in place by the retaining holes.

Description

Technical Field

[0001] This utility model relates to a modular guitar, and more particularly to a quick-release structure for a modular guitar that allows for quick string replacement. In addition, the neck and body can be separated by a quick-release mechanism. Background Technology

[0002] In current technology, replacing guitar strings is very time-consuming. One method is to simply cut them, which doesn't allow for quick replacement. Furthermore, guitars use glued connections between the body and stringers, and internal screws make it difficult to separate the components and remove the headstock. Additionally, after removing the tuning pegs, the strings easily unravel, requiring time to reposition them and install the pegs, further hindering quick string replacement. Moreover, users cannot effectively reduce the storage space required when carrying or storing the guitar, causing inconvenience.

[0003] Therefore, how to solve the above-mentioned defects through structural design improvements has become a problem that this technical field seeks to address. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a modular guitar to overcome the above-mentioned defects in the existing technology.

[0005] To solve the aforementioned technical problems, one technical solution adopted by this utility model is to provide a modular guitar, which includes a body and a quick-release string fastener. The body is detachable from other parts of the guitar. The body includes a soundbox and a bridge, with the bridge fixed to the surface of the soundbox. The quick-release string fastener is detachably mounted on the bridge and has multiple limiting holes, whereby multiple strings can be held in place by the multiple limiting holes of the quick-release string fastener.

[0006] According to the quick-release structure of the modular guitar of this utility model, it further includes a neck that is detachably connected to the body of the guitar, and the lower end of the neck includes a first fastening part; wherein the body of the guitar further includes an assembly receiving part and a fastening device; the fastening device is disposed in the assembly receiving part; wherein the fastening device can movably fasten the first fastening part.

[0007] In some embodiments, a quick-release string fastener is further included, which is detachably mounted on the bridge. The quick-release string fastener has multiple limiting holes, through which multiple strings can be held in the multiple limiting holes. The shape of the quick-release receiving portion is matched with the quick-release string fastener, so that the quick-release string fastener can be detachably fixed to the quick-release receiving portion by insertion and removal.

[0008] In some embodiments, the quick-release string fastener includes: a body plate, a plurality of limiting holes formed on one side of the body plate, the plurality of limiting holes penetrating the body plate, and each string having a string bead stopped below the limiting hole.

[0009] In some embodiments, the quick-release string fastener further includes a vertical plate connected to one side of the body plate; a plurality of string guide holes are located at the connection between the body plate and the vertical plate, so that the plurality of strings pass through the plurality of string guide holes and the plurality of limiting holes respectively.

[0010] In some embodiments, the instrument further includes a neck detachably connected to the body, the lower end of the neck including a first fastening portion; wherein the body further includes an assembly receiving portion and a fastening device; the fastening device is disposed within the assembly receiving portion; wherein the fastening device can movably fasten the first fastening portion.

[0011] In some embodiments, the instrument body further includes a second fastening portion, which is fixedly disposed within the assembly receiving portion, and the fastening device can movably engage the second fastening portion.

[0012] In some embodiments, a headstock is also included, which is detachably connected to the neck of the instrument. The headstock includes a string guide with multiple positioning grooves for limiting the multiple strings.

[0013] In some embodiments, the headstock further includes at least one first fixing post receiving portion; the neck further includes at least one second fixing post receiving portion; at least one fixing post is respectively inserted into the at least one first fixing post receiving portion and the at least one second fixing post receiving portion, so that one end of the neck can be detachably connected to the headstock.

[0014] In some embodiments, the neck further includes: a fingerboard portion connected to one side of the neck; and an extension portion extending to one end of the neck, wherein the at least one second fixing post receiving portion is disposed in the extension portion, so that one end of the neck is detachably connected to the headstock; wherein the fingerboard portion has an upper nut adjacent to the extension portion.

[0015] In some embodiments, the fastening device includes: a hook member having a latch at one end that can selectively hook the first fastening portion; a pressing portion connected to the other end of the hook member via a first movable shaft; and a support base connected to the pressing portion via a second movable shaft; the support base being fixed to the assembly receiving portion.

[0016] In some embodiments, the fastening device further includes a pull cord connected to one side of the pressing portion.

[0017] In some embodiments, the hook includes a base, an anti-slip washer, an upper adjusting nut, and a lower adjusting nut. The base is U-shaped, and its bottom end is rotatably connected to the first movable shaft. The hook is located above the base. The upper adjusting nut is screwed to the bottom of the hook and abuts against one surface of the top of the base. The lower adjusting nut is screwed to the hook and abuts against the other surface of the top of the base. The anti-slip washer is disposed between the upper adjusting nut and the top surface.

[0018] In some embodiments, the body of the instrument further includes a tenon disposed within the assembly receiving portion, and the lower end of the neck further includes a tenon plate having a groove formed by a recess on one side of the tenon plate. The tenon and the groove are fitted together to prevent the neck from drooping during maintenance when no strings are pulling on the neck.

[0019] In some embodiments, the assembly receiving portion further includes an adjustment post disposed on one side of the assembly receiving portion, the top end of the adjustment post abutting against the neck of the instrument, and the exposed height of the adjustment post is adjustable, thereby adjusting the elevation angle of the neck of the instrument.

[0020] One of the advantages of this invention is that the modular guitar provided by this invention allows for string replacement without cutting the strings using quick-release string fasteners, thus replacing string pins. The strings will not come undone during the replacement process.

[0021] The fastening device of this invention can movably fasten the body and neck of the instrument, allowing the user to disassemble the body and neck without the need for tools.

[0022] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0023] Figure 1 This is a three-dimensional assembly diagram of the modular guitar of this utility model.

[0024] Figure 2 This is another three-dimensional assembly diagram of the modular guitar of this utility model.

[0025] Figure 3 This is an exploded view of the modular guitar of this utility model.

[0026] Figure 4 This is an exploded view of the locking device for the combined guitar of this utility model.

[0027] Figure 5 This is another exploded view of the buckling device of this utility model.

[0028] Figure 6 This is a schematic diagram of the first step assembly of the modular guitar of this utility model.

[0029] Figure 7 This is a schematic diagram of the second assembly step of the modular guitar of this utility model.

[0030] Figure 8 This is a schematic diagram of the third step of the assembly of the modular guitar of this utility model.

[0031] Figure 9 This is a schematic diagram of the fourth step of the assembly of the modular guitar of this utility model.

[0032] Figure 10 This is an exploded view of the headstock of the modular guitar of this utility model.

[0033] Figure 11 This is a partially exploded view of the body of the modular guitar of this utility model.

[0034] Figure 12 This is a partially exploded view of the modular guitar of this utility model.

[0035] Figure 13 This is an exploded view of another embodiment of the combined guitar headstock of this utility model.

[0036] Figure 14 This is a partially exploded view of the second embodiment of the combined guitar body of this utility model.

[0037] Figure 15 This is a partially exploded view of the third embodiment of the combined guitar body of this utility model.

[0038] Figure 16 This is a partially exploded view of the fourth embodiment of the combined guitar body of this utility model. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation methods disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0040] It should be understood that while terms such as "first" and "second" may be used in this document to describe various components, these components should not be limited by these terms. These terms are primarily used to distinguish one component from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more related listed items.

[0041] [Quick-release mechanism for modular guitars]

[0042] Please see Figures 1 to 3 and Figure 11 This utility model provides a quick-release structure for a modular guitar 100, which includes a body 3 and a quick-release string fastener 31. The body 3 has a separable structure from other parts of the guitar. The body 3 includes a soundbox 32 and a bridge 35, with the bridge 35 fixed to the surface of the soundbox 32.

[0043] The bridge 35 includes a quick-release receiving part 37. The shape of the quick-release receiving part 37 matches the quick-release string fastener 31, so that the quick-release string fastener 31 can be detachably fixed to the quick-release receiving part 37 by means of insertion and removal.

[0044] The quick-release string fastener 31 includes a body plate 312. In one embodiment, a plurality of limiting holes 311 are formed on one side of the body plate 312, penetrating the body plate 312. Each string 4 has a string bead 41 that is blocked below the limiting hole 311.

[0045] In another embodiment, a plurality of limiting holes 311 are formed on one side of the body plate 312, and are formed by an inward recess from one end of the body plate 312. Each string 4 has a string bead 41 that is blocked below the limiting hole 311.

[0046] In one embodiment of this case, the shape of the string bead 41 is slightly larger than that of the limiting hole 311, so that the string bead 41 cannot pass through the limiting hole 311, and the string 4 can be kept on the quick-release string fastener 31 without falling off.

[0047] The quick-release string fastener 31 also includes a vertical plate 313, which is connected to one side of the main body plate 312. The quick-release string fastener 31 also includes multiple string holes 3121, located at the connection between the main body plate 312 and the vertical plate 313, so that multiple strings 4 pass through multiple string holes 3121 and multiple limiting holes 311 respectively.

[0048] The quick-release string fastener 31 also includes a lower plate 314, which is connected to the other side of the main plate 312 so that when the quick-release string fastener 31 is fixed to the bridge 35, the lower plate 314 abuts against one side of the bridge 35.

[0049] When the user disassembles the modular guitar 100, the two screws 315 can be removed to separate the quick-release string fastener 31 from the bridge 35, allowing the strings 4 to separate from the body 3. However, because multiple strings 4 can be kept in place by the quick-release string fastener 31 without falling off, the multiple strings 4 will not get tangled together, improving the convenience of disassembly and storage.

[0050] The bridge 35 includes a receiving groove 351, which is formed by an inward recess from one side of the bridge 35. The shape of the receiving groove 351 is slightly larger than that of the string beads 41, so that when the lower plate 314 of the quick-release string fastener 31 abuts against one side of the bridge 35, the string beads 41 can be placed in the receiving groove 351.

[0051] The bridge 35 also includes a nut 352, which in this embodiment is an embedded hexagonal nut. The nut 352 is located on the inner side of the bridge 35, i.e., the bottom surface. The body plate 312 is fixed to the bridge 35 by screwing the nut 352 onto the screw 315. The screw 315 simultaneously presses the body plate 312 downwards and also prevents displacement of the body plate 312 in the front-to-back direction. The nut 352 being located on the inner side of the bridge 35 prevents it from being exposed on the surface of the bridge 35, improving the overall aesthetic appearance.

[0052] Please see Figure 14 This shows a second embodiment of the quick-release string fastener. In this embodiment, the lower plate is omitted from the quick-release string fastener 31a. The quick-release string fastener 31a in this embodiment is substantially the same as... Figure 11 In the first embodiment, the difference lies in that the upright plate 313 extends upward from the body plate 312 and then extends horizontally towards the neck 2, parallel to the body plate 312, making the quick-release string fastener 31a slightly Z-shaped when viewed from the side. Additionally, this embodiment provides another embodiment of the bridge 35a, which has two latching portions 354 located on both sides of the top surface of the bridge 35a, providing a more convenient latching method to secure the quick-release string fastener 31a to the bridge 35a. During assembly, both ends of the body plate 312 engage with the two latching portions 354 respectively. This embodiment uses a latching method instead of a screw-locking method, saving more time during disassembly and replacement.

[0053] Please see Figure 15This section shows a third embodiment of the quick-release string fastener. In this embodiment, the quick-release string fastener 31b is designed with an open limiting hole 311. The user can separate the string 4 from the limiting hole 311 by pulling it directly towards the opening, without first separating the string bead 41 connected to one end of the string 4. The bridge 35a in this embodiment is the same as in the second embodiment, and the fixing and replacement methods of the quick-release string fastener 31b are the same.

[0054] Please see Figure 16 This illustrates the fourth embodiment of the quick-release string fastener 31c. In this embodiment, the lower plate 314 and the limiting hole 311 are omitted. In this embodiment, the string guide hole 3121 further serves to stop the string beads 41. The string 4 passes through the string guide hole 3121, and the string bead 41 connected to one end of the string 4 engages with the string guide hole 3121, that is, it is blocked by the upright plate 313, allowing the string 4 to be securely inserted into the string guide hole 3121. The bridge 35a in this embodiment is the same as in the second embodiment, and the fixing and replacement methods of the quick-release string fastener 31c are the same.

[0055] [How the neck is connected to the body]

[0056] Please see Figures 1 to 3 and Figures 6 to 7 The modular guitar 100 has a quick-release structure, which includes a neck 2 that is detachably connected to the body 3. The lower end of the neck 2 includes a first fastening part 21. The body 3 also includes an assembly receiving part 33 and a fastening device 34. The fastening device 34 is disposed in the assembly receiving part 33, wherein the fastening device 34 can movably fasten the first fastening part 21.

[0057] The body 3 also includes a second fastening part 36, which is fixedly disposed in the assembly receiving part 33, and the fastening device 34 can movably fasten the second fastening part 36.

[0058] When the fastening device 34 is fastened to the first fastening part 21, the neck 2 is connected to the body 3. When the fastening device 34 is separated from the first fastening part 21, the user can fasten the fastening device 34 to the second fastening part 36 to store the fastening device 34, thereby improving the convenience of storing the fastening device 34.

[0059] [How the headstock and neck are connected]

[0060] Please see Figures 1 to 3 and Figure 10 The quick-release structure of the modular guitar 100 also includes a headstock 1, which is detachably connected to the neck 2. The headstock 1 includes a string guide 11, which has multiple positioning grooves 111 for limiting multiple strings 4.

[0061] The headstock 1 also includes at least one first fixing post receiving portion 12. The neck 2 also includes at least one second fixing post receiving portion 22. At least one fixing post F is respectively inserted into at least one first fixing post receiving portion 12 and at least one second fixing post receiving portion 22, so that one end of the neck 2 can be detachably connected to the headstock 1.

[0062] Specifically, in one embodiment of this case, by inserting the two ends of the fixing post F into the first fixing post receiving portion 12 and the second fixing post receiving portion 22 respectively, one end of the neck 2 can be detachably connected to the headstock 1. Furthermore, the tension generated when the string 4 is connected between the headstock 1 and the body 3 ensures a stable connection between the headstock 1 and the neck 2 through the fixing post F inserted into the first fixing post receiving portion 12 and the second fixing post receiving portion 22.

[0063] The neck 2 also includes a fingerboard 23 and an extension 24. The fingerboard 23 is connected to one side of the neck 2, and the extension 24 extends obliquely from the top of the neck 2. The extension 24 has two second fixing post receiving portions 22, which are recesses in this embodiment, thereby allowing one end of the neck 2 to be detachably connected to the headstock 1. The fingerboard 23 has a nut 231 adjacent to the extension 24.

[0064] In this embodiment of the invention, the extension 24 moves the joint surface between the headstock 1 and the neck 2 away from the fingerboard 23. The design of the extension 24 effectively prevents the joint surface between the headstock 1 and the neck 2 from being located within the fingerboard 23. When the user plays the modular guitar 100 of this invention, the user's hand will not be affected by the joint surface between the headstock 1 and the neck 2 when placing their hand on the fingerboard 23.

[0065] Please see Figure 13 This illustration shows a string guide 11a according to another embodiment. In this embodiment, the string guide 11a is integrated with the headstock 1, and is integrally formed at the lower end of the headstock 1, protruding slightly upwards from the upper surface of the headstock 1. It is roughly L-shaped overall. Multiple positioning grooves 111 penetrate the string guide 11a. This design more securely positions the string guide 11a around the multiple strings 4.

[0066] [Holding device]

[0067] Please see Figures 4 to 9 The fastening device 34 includes a hook 341, a pressing part 342, and a support base 343. One end of the hook 341 has a hook 3415 that can selectively hook the first fastening part 21. The pressing part 342 is connected to the other end of the hook 341 via a first movable shaft 344. The support base 343 is connected to the pressing part 342 via a second movable shaft 345. The support base 343 is fixed to the assembly receiving part 33.

[0068] When the support base 343 is fixed to the assembly receiving part 33, the pressing part 342 is pushed from the first position (e.g. Figure 8 (As shown) snap into the second position (as shown) Figure 9 When the pressing part 342 drives the first movable shaft 344 to rotate around the second movable shaft 345 as the axis, the position of the first movable shaft 344 changes from the upper end (as shown). Figure 8 (As shown) Rotate to the lower end (as shown) Figure 9 As shown), this causes the hook 341 to generate a downward pulling force. Here, "upper end" refers to the side of the instrument body 3 where the strings 4 are located, and "lower end" refers to the side of the instrument body 3 where the strings 4 are not located. "Upward" refers to the direction from the lower end to the upper end, and "downward" refers to the direction from the upper end to the lower end.

[0069] Please see Figure 4 The hook assembly 341 includes a base 3411, an anti-slip washer 3412, an upper adjusting nut 3413, and a lower adjusting nut 3414. The base 3411 is U-shaped, and its bottom end is rotatably connected to a first movable shaft 344. The hook 3415 is located above the base 3411. The upper adjusting nut 3413 is attached to the bottom of the hook 3415 and abuts against the surface 3419a of the top 3418 of the base 3411. The lower adjusting nut 3414 is attached to the hook 3415 and abuts against the other surface 3419b of the top 3418 of the base 3411. The anti-slip washer 3412 is disposed between the upper adjusting nut 3413 and the top.

[0070] Furthermore, when the pressing part 342 of the fastening device 34 is pushed to the second position, the locking piece 3416 engages with the locking groove 3423, ensuring that the pressing part 342 is securely fastened in the second position and will not fall off. The advantage of this design is that it effectively ensures that the fastening device 34 can securely engage the first fastening part 21 and the hook 3415 when the user uses the modular guitar 100 of this utility model in any environment.

[0071] When disassembly is required, the user can press the locking piece 3416 to separate the locking piece 3416 from the locking groove 3423, and push the pressing part 342 from the second position to the first position to separate the first holding part 21 from the hook 3415.

[0072] The fastening device 34 also includes a combination of one or more of a fixing button 346 and a pull cord 347, connected to one side of the pressing part 342. The pressing part 342 is equipped with the fastening device 34 of the pull cord 347, allowing the user to pull the pressing part 342 more conveniently by pulling the pull cord 347. The pressing part 342 is also equipped with the fastening device 34 of the fixing button 346, allowing the user to push the pressing part 342 by pressing the fixing button 346, making pressing the pressing part 342 more convenient.

[0073] [Clasp]

[0074] Please see Figure 12 The body 3 also includes a tenon 331 housed within the assembly receiving part 33. The lower end of the neck 2 also includes a tenon plate 25, which has a groove 251. The groove 251 is formed by a recess on one side of the tenon plate 25, and the tenon 331 and groove 251 are externally matched, assisting the fastening device 34 in engaging the first fastening part 21. The main function of the tenon 331 and groove 251 is to prevent the neck from drooping when the user needs to repair or adjust the nut and fret height, and there are no strings holding the neck. It should be noted that the tenon plate 25 and the first fastening part 21 can be combined to form an integrated structure.

[0075] Please see Figures 6 to 9 When assembling the modular guitar 100, the user pushes the hook 3415 of the hooking part 341 in the fastening device 34 to hook the first fastening part 21, and then pushes the pressing part 342 from the first position (e.g., Figure 6 ) Fasten to the second position (e.g.) Figure 9 The second fastening part 36 can hold the hook 341 of the fastening device 34 by generating a pulling force to engage the first fastening part 21, so that the neck 2 and the body 3 can be securely fastened together. When the neck 2 is removed, that is, when the first fastening part 21 is not hooked on the neck 2, the second fastening part 36 can hold the hook 341 of the fastening device 34.

[0076] [Adjustment column]

[0077] Please see Figure 12 The assembly receiving part 33 also includes an adjustment post 332. The adjustment post 332 is disposed on one side of the assembly receiving part 33, and the top end of the adjustment post 332 abuts against the neck 2. The exposed height of the adjustment post 332 is adjustable, thereby adjusting the tilt angle of the neck 2.

[0078] In one feasible embodiment, the adjusting post 332 can be a stop screw, which is disposed on one side of the assembly receiving part 33. However, the present invention is not limited to this. The stop screw can also be disposed on the neck of the instrument. In addition, any component that can adjust the height can also be used as the adjusting post.

[0079] The advantages of the aforementioned quick-release headstock module are that, by securing the strings 4 with the string guide 11 and the design of the limiting hole 311 of the quick-release string holder 31 being slightly smaller than the string beads 41, the user can easily remove the strings or replace them with another set of strings of a different tone. This eliminates the time spent removing, pulling, and inserting string stops. Furthermore, when disassembling the modular guitar 100, the multiple strings 4 will not become tangled together, improving the convenience of the disassembly process and storage.

[0080] Another beneficial effect of this utility model is that, through the detachable headstock 1 and neck 2, the strings of the disassembled modular guitar 100 can be quickly replaced. Furthermore, the innovative use of the fixing post F inserted into the first fixing post receiving portion 12 and the second fixing post receiving portion 22 makes the disassembly of the headstock 1 and neck 2 even more convenient.

[0081] Another beneficial effect of this utility model is that the innovative method of assembling the neck 2 and the body 3 together by fastening the first fastening part 21 and the hook 3415 through the fastening device 34 improves the convenience of users to assemble and disassemble the modular guitar 100.

[0082] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the claims of the present utility model. Therefore, all equivalent technical changes made based on the content of the present utility model specification and drawings are included in the claims of the present utility model.

Claims

1. A quick release structure of a combination guitar, characterized in that, include: A guitar body, which is detachable from the rest of the guitar, includes a soundbox and a bridge, the bridge being fixed to the surface of the soundbox; the bridge includes a quick-release housing for quick string replacement.

2. The quick-release structure of the modular guitar as described in claim 1, characterized in that, It also includes a quick-release string fastener, which is detachably mounted on the bridge. The quick-release string fastener has multiple limiting holes, through which multiple strings can be held in the multiple limiting holes. The shape of the quick-release receiving part matches the quick-release string fastener, so that the quick-release string fastener can be detachably fixed to the quick-release receiving part by insertion and removal.

3. The quick-release structure of the modular guitar as described in claim 2, characterized in that, The quick-release fastener includes: A body plate, wherein a plurality of limiting holes are formed on one side of the body plate and the plurality of limiting holes penetrate the body plate, and each string has a string bead that is blocked below the limiting hole.

4. The quick-release structure of the modular guitar as described in claim 3, characterized in that, The quick-release string fastener further includes a vertical plate connected to one side of the body plate; multiple string guide holes are located at the connection between the body plate and the vertical plate, allowing the multiple strings to pass through the multiple string guide holes and the multiple limiting holes respectively.

5. The quick-release structure of the modular guitar as described in claim 1, characterized in that, It also includes a neck that is detachably connected to the body of the instrument, and the lower end of the neck includes a first fastening part; wherein the body of the instrument also includes an assembly receiving part and a fastening device; the fastening device is disposed in the assembly receiving part; wherein the fastening device can movably fasten the first fastening part.

6. The quick-release structure of the modular guitar as described in claim 5, characterized in that, The instrument body further includes a second fastening part, which is fixedly disposed within the assembly receiving part, and the fastening device can movably fasten the second fastening part.

7. The quick-release structure of the modular guitar as described in claim 5, characterized in that, It also includes a headstock, which is detachably connected to the neck of the instrument. The headstock includes a string guide with multiple positioning grooves for limiting the multiple strings.

8. The quick-release structure of the modular guitar as described in claim 7, characterized in that, The headstock further includes at least one first fixing post receiving portion; the neck further includes at least one second fixing post receiving portion; at least one fixing post is respectively inserted into the at least one first fixing post receiving portion and the at least one second fixing post receiving portion, so that one end of the neck can be detachably connected to the headstock.

9. The quick-release structure of the modular guitar as described in claim 8, characterized in that, The neck of the instrument also includes: One fingerboard section, connected to one side of the neck; and An extension portion extends to one end of the neck, and at least one second fixing post receiving portion is disposed on the extension portion, so that one end of the neck can be detachably connected to the headstock; wherein the fingerboard portion has a nut adjacent to the extension portion.

10. The quick-release structure of the modular guitar as described in claim 5, characterized in that, The fastening device includes: A hook-and-loop fastener, one end of which has a latch that can selectively hook onto the first fastening part; A pressing part is connected to the other end of the hook member via a first movable shaft; and A support base is connected to the pressing part via a second movable shaft; the support base is fixed to the assembly receiving part.

11. The quick-release structure of the modular guitar as described in claim 10, characterized in that, The fastening device further includes a pull cord connected to one side of the pressing part.

12. The quick-release structure of the modular guitar as described in claim 10, characterized in that, The hook-and-loop fastener includes a base, an anti-slip washer, an upper adjusting nut, and a lower adjusting nut. The base is U-shaped, and its bottom end is rotatably connected to the first movable shaft. The hook is located above the base. The upper adjusting nut is screwed to the bottom of the hook and abuts against one surface of the top of the base. The lower adjusting nut is screwed to the hook and abuts against the other surface of the top of the base. The anti-slip washer is disposed between the upper adjusting nut and the top surface.

13. The quick-release structure of the modular guitar as described in claim 5, characterized in that, The body of the instrument also includes a tenon set in the assembly receiving part, and the lower end of the neck also includes a tenon plate. The tenon plate has a groove, which is formed by a recess on one side of the tenon plate. The tenon and the groove fit together. During maintenance, when no strings are pulling the neck, the neck can be prevented from drooping.

14. The quick-release structure of the modular guitar as described in claim 5, characterized in that, The assembly receiving part further includes an adjustment post, which is disposed on one side of the assembly receiving part. The top end of the adjustment post abuts against the neck of the instrument, and the exposed height of the adjustment post is adjustable, thereby adjusting the elevation angle of the neck.

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