A structure of freely replaceable head style
By using a mortise and tenon joint structure and a magnetic block design, the headstock of the musical instrument can be freely disassembled and replaced, solving the problems of transportation damage and fixed styles, improving transportation safety and functional adaptability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING YUNYUAN TIANDI CULTURE CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-04
AI Technical Summary
The existing instrument headstock cover is easily damaged during transportation, and its fixed style cannot meet the functional requirements of different scenarios, resulting in high maintenance costs and waste of resources.
It adopts a mortise and tenon joint structure, which allows for the free replacement of the headstock cover splice head through the cooperation of the mortise and tenon. The design of the magnetic block and the backing plate enhances the connection stability and supports the switching of various headstock cover splice head styles.
It improves transportation safety, reduces maintenance costs, minimizes resource waste, and meets the functional requirements of different scenarios.
Smart Images

Figure CN224595242U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of musical instrument manufacturing technology, specifically relating to a structure with a freely interchangeable headstock. Background Technology
[0002] Integrated fixed headstock assembly is prone to breakage or deformation during transportation due to impacts. According to industry statistics, headstock assembly damage accounts for as much as 42% of musical instrument transportation damage cases (data source: Musical Instrument Logistics Association 2023 report). Current technologies only provide passive protection by adding foam padding or rigid packaging boxes, failing to address the fundamental structural problem.
[0003] Users are increasingly pursuing personalized instrument appearances, but the traditional headstock design is fixed at the production stage, preventing users from changing the headstock style according to their preferences or usage scenarios (such as performances or collections). While the current modular design supports disassembly, it is limited to the entire headstock and does not offer style-changing functionality, essentially remaining a single form.
[0004] As the visual focal point of an instrument, the headstock assembly has potential advertising or cultural symbol functions (such as brand logos and artistic patterns). In existing technologies, the fixed style and structure of the headstock assembly prevent it from adapting to the functional needs of different scenarios. For example, a headstock assembly with lighting effects needs to be replaced during performances, or a vintage-style headstock assembly needs to be replaced when collecting the instrument.
[0005] If the headstock or headpiece is damaged during transportation or use, the integrated design requires the entire headstock leg to be replaced, with repair costs accounting for 15% to 20% of the instrument's total price. While the existing modular design allows for the replacement of the headstock or headpiece individually, the limited variety of styles means that users need to purchase multiple instruments to meet different needs, resulting in a waste of resources. Utility Model Content
[0006] The purpose of this invention is to provide a structure with a freely interchangeable headstock, aiming to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A structure with a freely interchangeable headstock, including:
[0009] The headstock mechanism includes two headstock legs fixedly mounted on the body of the instrument, and a mortise and tenon joint base set on the top of the headstock legs;
[0010] The headstock mechanism includes the headstock cover plate assembly head and the tenon fixedly installed at the bottom of the headstock cover plate assembly head and used in conjunction with the tenon and mortise joint base.
[0011] As a preferred embodiment of this utility model, the mortise and tenon joint base includes a base body fixedly installed on the top of the headstock leg, and a tenon groove formed on the surface of the base body.
[0012] The mortise and tenon are used in conjunction with the tenon, and the tenon is engaged inside the mortise and tenon.
[0013] In a preferred embodiment of this utility model, the interior of the tenon groove is inlaid with equally spaced magnetic blocks, and the surface of the tenon is attached with a liner plate that matches the magnetic blocks.
[0014] As a preferred embodiment of this utility model, the tenon is specifically a dovetail tenon, and the dimensions of the tenon and the mortise are precisely matched.
[0015] In a preferred embodiment of this utility model, the liner is specifically an iron liner, and the liner and the magnetic block are attracted by magnetic force.
[0016] As a preferred embodiment of this utility model, the tenon groove extends laterally through the surface of the base body, and the side view cross section of the tenon groove is trapezoidal.
[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: the device allows for free switching of the headstock assembly style, enabling users to change the headstock assembly style at any time according to performance, collection, or personal preference, eliminating the need to purchase multiple instruments. It also improves transportation safety, as the disassembled headstock assembly is smaller in size, reducing the probability of collisions. The tenon and mortise joint enhance tensile strength, and the mortise and tenon structure has a service life exceeding tens of thousands of disassembly and assembly cycles. A single headstock leg can accommodate multiple headstock assembly styles, reducing material consumption during production. Users do not need to replace the entire headstock leg due to damage to the headstock assembly, reducing maintenance costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the headstock leg mechanism and the headstock mechanism of this utility model;
[0021] Figure 3 This is a schematic diagram of the mortise and tenon joint base structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the tenon structure of this utility model.
[0023] In the diagram: 100, headstock leg mechanism; 110, headstock leg; 120, mortise and tenon joint base; 121, base body; 122, mortise and tenon; 123, magnet; 200, headstock mechanism; 210, headstock cover plate assembly head; 220, tenon; 230, backing plate. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0027] Example
[0028] Reference Figure 1-4 This is an embodiment of the present invention, which provides a structure with a freely interchangeable headstock, including:
[0029] The headstock leg mechanism 100 includes two headstock legs 110 fixedly mounted on the body of the instrument, and a tenon and mortise joint base 120 disposed on the top of the headstock legs 110.
[0030] The headstock mechanism 200 includes a headstock cover plate assembly 210 and a tenon 220 fixedly installed at the bottom of the headstock cover plate assembly 210 and used in conjunction with the tenon and mortise joint base 120.
[0031] The device allows for free switching between different styles of the headstock assembly 210, enabling users to change the style of the headstock assembly 210 at any time according to performance, collection, or personal preference, eliminating the need to purchase multiple instruments. It also improves transportation safety, as the disassembled headstock assembly 210 is smaller, reducing the probability of collisions. The tenon 122 and tenon 220 work together to enhance tensile strength, and the mortise and tenon structure has a lifespan exceeding tens of thousands of disassembly and assembly cycles. A single headstock leg 110 can accommodate multiple headstock assembly 210 styles, reducing material consumption in production. Users do not need to replace the entire headstock leg 110 if the headstock assembly 210 is damaged, reducing maintenance costs.
[0032] It should be noted that the entire headstock consists of the headstock leg mechanism 100 and the headstock mechanism 200.
[0033] Specifically, the mortise and tenon joint base 120 includes a base body 121 fixedly installed on the top of the headstock leg 110, and a tenon 122 formed on the surface of the base body 121;
[0034] The mortise 122 is used in conjunction with the tenon 220, and the tenon 220 is engaged inside the mortise 122.
[0035] The mortise and tenon 220 facilitates the quick installation and disassembly of the headstock cover 210, allowing for easy replacement of the headstock cover 210.
[0036] Furthermore, the interior of the tenon 122 is inlaid with equally spaced magnetic blocks 123, and the surface of the tenon 220 is attached with a liner 230 for use with the magnetic blocks 123.
[0037] The cooperation between the magnetic block 123 and the liner 230 improves the stability of the tenon 220 being engaged inside the mortise 122, and further enhances the connection stability of the headstock cover splice 210.
[0038] Preferably, the tenon 220 is a dovetail tenon, and the dimensions of the tenon 220 and the mortise 122 are precisely matched.
[0039] It should be noted that 120 is located at the top of the two headstock plates of 210, 1.2cm above the headstock legs, to ensure that the playing feel is not affected after the 210 is replaced; the styles of 210 include but are not limited to Ruyi style, Phoenix tail style, Swallow tail style, Buddha hand style, etc., and are made by traditional intangible cultural heritage handicrafts.
[0040] Furthermore, the liner 230 is specifically an iron liner, and the liner 230 and the magnet 123 are attracted by magnetic force.
[0041] Furthermore, the tenon 122 extends laterally through the surface of the base body 121, and the side view of the tenon 122 is trapezoidal.
[0042] During use, the device allows for free switching between different styles of the headstock assembly 210. Users can change the style of the headstock assembly 210 at any time according to performance, collection, or personal preference, eliminating the need to purchase multiple instruments. This also improves transportation safety, as the disassembled headstock assembly 210 is smaller, reducing the probability of collisions. The tenon 122 and tenon 220 work together to enhance tensile strength, and the mortise and tenon structure has a lifespan exceeding tens of thousands of disassembly and reassembly cycles. A single headstock leg 110 can accommodate multiple headstock assembly 210 styles, reducing material consumption during production. Users do not need to replace the entire headstock leg 110 if the headstock assembly 210 is damaged, reducing maintenance costs.
[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A structure capable of freely changing the style of a headstock, characterized by: include, The headstock leg mechanism (100) includes two headstock legs (110) fixedly mounted on the body of the instrument, and a tenon-and-mortise joint base (120) disposed on the top of the headstock legs (110); The headstock mechanism (200) includes a headstock cover joint (210) and a tenon (220) fixedly installed at the bottom of the headstock cover joint (210) and used in conjunction with the tenon and mortise joint base (120).
2. The structure of claim 1, wherein: The mortise and tenon joint base (120) includes a base body (121) fixedly installed on the top of the headstock leg (110), and a tenon (122) formed on the surface of the base body (121); The mortise (122) is used in conjunction with the tenon (220), and the tenon (220) is engaged inside the mortise (122).
3. The structure of claim 2, wherein: The mortise (122) is inlaid with equally spaced magnetic blocks (123), and the surface of the tenon (220) is attached with a liner (230) for use with the magnetic blocks (123).
4. The structure of claim 3, wherein: The tenon (220) is specifically a dovetail tenon, and the tenon (220) and the mortise (122) are precisely matched in size.
5. The structure of claim 4, wherein: The liner (230) is specifically an iron liner, and the liner (230) and the magnetic block (123) are attracted by magnetic force.
6. The structure of claim 5, wherein: The tenon (122) extends laterally through the surface of the base body (121), and the side view of the tenon (122) is trapezoidal.